# US 11,994,280 B2 · Film and television lamp

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,994,280 B2
- Document ID: US11994280B2
- Status: Granted
- Kind: B2
- Application number: 17/887,552
- Filed: 2022-08-15
- Published: 2023-06-08
- Granted: 2024-05-28
- Earliest claimed: 2021-12-06
- Assignees: Aputure Imaging Industries Co., Ltd.
- Applicants: Aputure Imaging Industries Co., Ltd.
- Inventors: Xuelin Liao; Haijun Gu
- Web page: https://patentgrep.com/patent/US11994280B2

## CPC

- F21V 29/76: with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V 29/763: {the planes containing the fins or blades having the direction of the light emitting axis}
- F21V 17/06: the fastening being onto or by the lampholder
- F21V 29/67: characterised by the arrangement of fans
- F21V 29/713: {in direct thermal and mechanical contact of each other to form a single system}
- F21V 31/005: {Sealing arrangements therefor}
- F21V 33/0052: {Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor}
- F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes
- F21W 2131/406: for theatres, stages or film studios
- F21Y 2115/10: Light-emitting diodes [LED]
- G03B 15/06: Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
- G03B 2215/0517: Housing
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

## Abstract

A film and television lamp is provided by embodiments of the present disclosure, comprising: a housing assembly, wherein the housing assembly is provided with a cavity, the housing assembly comprises a first housing, the first housing comprises a first ventilation area, a second ventilation area and shelter structure between the first ventilation area and the second ventilation area; a circuit board assembly, wherein the circuit board assembly is provided in the cavity and in correspondence with the shelter structure; a heat dissipating assembly, wherein the heat dissipating assembly is provided in the cavity, and the heat dissipating assembly comprises a first radiator and a second radiator, the first radiator is connected with the second radiator. The present disclosure aims to solve technical problems in the prior art that heat dissipation and waterproof in the film and television lamp cannot be both achieved.

## Claims

### Claim 1

A film and television lamp, comprising:
a housing assembly, wherein, the housing assembly is provided with a cavity; and the housing assembly comprises a first housing, the first housing comprises a first ventilation area, and a second ventilation area and a shelter structure between the first ventilation area and the second ventilation area;
a circuit board assembly, wherein, the circuit board assembly is provided in the cavity and in correspondence with the shelter structure;
a heat dissipating assembly, wherein, the heat dissipating assembly is provided in the cavity; and the heat dissipating assembly comprises a first radiator and a second radiator, the first radiator is connected with the second radiator, and the circuit board assembly is connected with a side of the second radiator in face to the first radiator; and
the first radiator is provided in correspondence with the first ventilation area, and the second radiator is provided in correspondence with the second ventilation area; and
a light source, wherein the light source is thermally connected with the first radiator,
the film and television lamp further comprises a first wind assembly and a second wind assembly, wherein the first wind assembly is disposed at a side surface of the first radiator away from the second radiator and connected with the first radiator to provide air flow for the first radiator, and the second wind assembly is disposed below the second radiator and connected with the second radiator to provide air flow for the second radiator.

### Claim 2 (depends on 1)

The film and television lamp according to claim 1, wherein, the first radiator comprises a plurality of first fins corresponding to the first ventilation area, a first gap is formed among the plurality of the first fins, and the first ventilation area is connected with the first gap; and
the shelter structure comprises a first baffle and a skeleton, and the first ventilation area is connected with the second ventilation area through the skeleton; and an end of the skeleton extends towards the first ventilation area to form a first entity area, the first entity area is connected with the first baffle, and the first baffle extends towards the plurality of the first fins.

### Claim 3 (depends on 2)

The film and television lamp according to claim 2,
wherein, the first radiator comprises a first heat dissipating substrate, a side of the first heat dissipating substrate in face to the second radiator is thermally connected to the circuit board assembly, and a side of the first heat dissipating substrate deviating from the second radiator is provided with the plurality of the first fins; and
at least part of the plurality of the first fins comprise a first segment and a second segment, forming a first concave area; and
at least part of the first wind assembly is provided in the first concave area and connected with the first segment to generate air flow in the first gap.

### Claim 4 (depends on 3)

The film and television lamp according to claim 3, wherein, the first heat dissipating substrate comprises a first end away from the first ventilation area and a second end closed to the first ventilation area;
wherein, the height of the first segment increases gradually from the first end to the second end.

### Claim 5 (depends on 4)

The film and television lamp according to claim 4, wherein, the housing assembly further comprises:
the second housing, wherein, the second housing is connected with the first housing; and
the second housing is provided with a third ventilation area, the third ventilation area is provided in correspondence with the first wind assembly, the third ventilation area, the first gap, and the first ventilation area form a first convection channel.

### Claim 6 (depends on 5)

The film and television lamp according to claim 5, wherein, the housing assembly comprises a third housing and a fourth housing, and the first housing, the second housing, the third housing and the fourth housing enclose to form a cavity in order to install the circuit board assembly and the heat dissipating assembly.

### Claim 7 (depends on 6)

The film and television lamp according to claim 6, wherein, an end of the second housing deviating from the first housing is bent towards the third housing, forming a diversion segment.

### Claim 8 (depends on 3)

The film and television lamp according to claim 3, wherein, the circuit board assembly comprises a waterproof cover, and the waterproof cover comprises a main part, wherein, the main part extends towards the first heat dissipating substrate, and the main part is hermetically connected with a side of the first heat dissipating substrate deviating from the plurality of the first fins to form a containing cavity; and
a circuit board, wherein, the circuit board is provided in the containing cavity and is thermally connected with the first heat dissipating substrate (200a).

### Claim 9 (depends on 8)

The film and television lamp according to claim 8, wherein, the waterproof cover further comprises an outer edge part, the outer edge part is connected with the main part and extending outward from the containing cavity, and the outer edge part is connected with the first heat dissipating substrate; and
the circuit board assembly further comprises waterproof foam, a side of the waterproof foam is fitted to the main part, and another side of the waterproof foam is fitted to a side of the first heat dissipating substrate deviating from the plurality of the first fins.

### Claim 10 (depends on 9)

The film and television lamp according to claim 9, wherein, the main part comprises a rubber stopper slot, the circuit board assembly further comprises a rubber stopper card and a wire, the rubber stopper card is provided in the rubber stopper slot, an end of the wire is electrically connected with the circuit board, and another end of the wire goes through the rubber stopper card and are electrically connected with the light source, the first wind assembly and the second wind assembly.

### Claim 11 (depends on 8)

The film and television lamp according to claim 8, wherein, the waterproof cover further comprises an outer edge part, the outer edge part is connected with the main part and extending outward from the containing cavity, and the outer edge part is connected with the first heat dissipating substrate; and
the circuit board assembly further comprises waterproof foam, a side of the waterproof foam is fitted to the outer edge part, and another side of the waterproof foam is fitted to a side of the first heat dissipating substrate deviating from the plurality of the first fins.

### Claim 12 (depends on 8)

The film and television lamp according to claim 8, wherein, the waterproof cover further comprises an outer edge part, the outer edge part is connected with the main part and extending outward from the containing cavity, and the outer edge part is connected with the first heat dissipating substrate; and
the circuit board assembly further comprises waterproof foam, a side of the waterproof foam is fitted to the main part and the outer edge part, and another side of the waterproof foam is fitted to a side of the first heat dissipating substrate deviating from the plurality of the first fins.

### Claim 13 (depends on 3)

The film and television lamp according to claim 3, wherein, an extending direction of the first baffle is provided in parallel with a side provided with the plurality of the first fins 200b of the first heat dissipating substrate.

### Claim 14 (depends on 2)

The film and television lamp according to claim 2, wherein, the second radiator comprises a plurality of second fins corresponding to the second ventilation area, a second gap is formed among the plurality of the second fins, and the second ventilation area is connected with the second gap;
the shelter structure further comprises a second baffle; another end of the skeleton extends towards the first ventilation area to form a second entity area, the second entity area is connected with the first baffle, and the second baffle extends towards space between the circuit board assembly and the second radiator; and the housing assembly further comprises the third housing, and the third housing and the first housing are provided in face to each other;
the third housing is provided with a fourth ventilation area, the fourth ventilation area is provided in correspondence with the second radiator, and the fourth ventilation area, the second gap and the second ventilation area form a second convection channel; and
the second wind assembly is further provided between the fourth ventilation area and the second radiator to generate air flow in the second convection channel.

### Claim 15 (depends on 14)

The film and television lamp according to claim 14, wherein, a side of the first housing in face to the second radiator further is provided with a third baffle, and the second ventilation area is provided between the second baffle and the third baffle; and
the second radiator comprises a second heat dissipating substrate, the plurality of the second fins comprise a third segment and a fourth segment, an end of the third segment is connected with the second heat dissipating substrate, an end of the third segment is connected with an end of the fourth segment, a height of the third segment is below than that of the fourth segment, to form first concave area, and the third baffle extends towards the third segment and partially located in the first concave area.

### Claim 16 (depends on 15)

The film and television lamp according to claim 15, wherein, the film and television lamp further comprises a light source protection assembly, the light source protection assembly is connected with the housing assembly, and provided with a hollow cavity; and
a part of the light source is provided in the hollow cavity, and the light source is thermally connected with a side of second heat dissipating substrate deviating from the plurality of the second fins; and the light source protection assembly comprises:
a sleeve, wherein, the hollow cavity is provided in the sleeve; and
a cover, wherein, the cover is connected with the sleeve; the cover is connected with the housing assembly, and the cover is provided with a channel; and a part of the sleeve is contained in the channel and another part of the light source is provided in the channel.

### Claim 17 (depends on 16)

The film and television lamp according to claim 16, wherein, a side of the sleeve departing from the light source is connected with a light transmittance element.

### Claim 18 (depends on 14)

The film and television lamp according to claim 14, wherein, the second radiator further comprises side plates provided in face to each other, the fixing side plates are connected with the second heat dissipating substrate;
a hanging ear is provided on the fixing side plates, and a first through hole is provided on the hanging ear; and the first radiator is provided with a second through hole, and the first through hole and the second through hole are coaxially provided;
the film and television lamp further comprises a fixing part, and the first through hole and the second through hole are connected through the fixing part; and
extending length of the plurality of the first fins in a third direction is less than that of the plurality of the second fins in the third direction; and direction of interval of the plurality of the first fins is parallel to that of the plurality of the second fins.

### Claim 19 (depends on 18)

The film and television lamp according to claim 18, wherein, the film and television lamp further comprises a fixing part, the fixing part comprising a first part, a middle part and a second part, the first part being connected with an end of the middle part, the second part being connected with another end of the middle part, the first part being connected with the first through hole, and the second part being connected with the second through hole.

### Claim 20 (depends on 18)

The film and television lamp according to claim 18, wherein, the housing assembly comprises a fourth housing; an outer side of the fixing side plates is connected with a fixing panel; and the fixing panel extends towards the fourth housing, and is connected with the fourth housing.