# US 11,994,243 B2 · Coolant connecting piece, housing system and production thereof

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

- Number: US 11,994,243 B2
- Document ID: US11994243B2
- Status: Granted
- Kind: B2
- Application number: 17/946,591
- Filed: 2022-09-16
- Published: 2023-03-30
- Granted: 2024-05-28
- Earliest claimed: 2021-09-24
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Markus Schmitt; Benjamin Kopp; Ralph Glemser
- Web page: https://patentgrep.com/patent/US11994243B2

## CPC

- F16L 21/022: {used with sleeves or nipples for pipes of the same diameter, or with reduction pieces (F16L21/025 takes precedence)}
- F16L 21/035: placed around the spigot end before connection ({F16L21/022,} F16L21/025 take precedence)
- H01M 10/613: Cooling or keeping cold
- H01M 10/6567: Liquids
- H05K 7/20272: {Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds}
- F16L 41/08: Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe (F16L41/02 takes precedence)
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A coolant connecting piece (100) for conducting coolant between a first housing (201, 503) and a second housing (203, 507). The coolant connecting piece (100) comprises a cylindrical main body (101) with a coolant channel formed on an inner side of the main body (101), and a protective ring (103) with a drip edge (117), wherein a cross-section of the protective ring (103) is greater than a cross-section of the main body (101), and wherein the drip edge (117) is configured to let condensate running off on an outer side of the main body (101), opposite the inner side, drip off into a predetermined region (213).

## Claims

### Claim 1

A coolant connecting piece (100) for conducting coolant between a first housing (201, 503) and a second housing (203, 507), wherein the coolant connecting piece (100) comprises:
a cylindrical main body (101) with a coolant channel formed on an inner side of the main body (101),
a protective ring (103) with a drip edge (117),
wherein a cross-section of the protective ring (103) is greater than a cross-section of the main body (101),
wherein the drip edge (117) is configured to let condensate running off on an outer side of the main body (101), opposite the inner side, drip off into a predetermined region (213),
wherein the protective ring (103) is arranged centrally on the main body (101), and the protective ring (103) is configured as a separate element or in one piece with the main body (101), and
wherein the protective ring (103) has a radially circumferential groove (115) which is sloped toward the drip edge (117) at least in regions.

### Claim 2 (depends on 1)

The coolant connecting piece (100) according to claim 1, wherein
the coolant connecting piece (100) comprises a first sealing ring (105) above the protective ring (103) and a second sealing ring (107) below the protective ring (103).

### Claim 3 (depends on 1)

The coolant connecting piece (100) according to claim 1, wherein
the protective ring (103) comprises a first region (121) and a second region (119),
the first region (121) being thickened in a flow direction of the coolant channel in relation to the second region (119), and
the second region (119) comprising the drip edge (117).

### Claim 4 (depends on 1)

The coolant connecting piece (100) according to claim 1, wherein
the main body (101) is rounded at its two ends (109, 111).

### Claim 5 (depends on 1)

The coolant connecting piece (100) according to claim 1, wherein
the main body (101) has an oblique surface (123) above the protective ring (103) in order to guide condensate running along the main body (101) onto the protective ring (103).

### Claim 6 (depends on 1)

The coolant connecting piece (100) according to claim 1, wherein the groove (115) is V-shaped.

### Claim 7 (depends on 1)

The coolant connecting piece (100) according to claim 1, wherein
the main body (101) comprises a plurality of radial projections spaced apart from one another, at least one projection of the plurality of projections having an oblique outer edge (125).

### Claim 8 (depends on 1)

A housing system (200, 500),
wherein the housing system (200, 500) comprises:
a first housing (201, 503),
a second housing (203, 507),
a coolant connecting piece (100) according to claim 1,
wherein the coolant connecting piece (100) connects a first receptacle (205, 511) of a first coolant channel (215) of the first housing (201, 503) and a second receptacle (207, 513) of a second coolant channel (217) of the second housing (203, 507) in a fluid-conducting manner,
wherein the first housing (201, 503) and/or the second housing (203, 507) comprises a drainage channel (213) configured to receive condensate dripping from the drip edge (117) of the coolant connecting piece (100) and to discharge the condensate along a predetermined trajectory.

### Claim 9 (depends on 8)

The housing system (200, 500) according to claim 8, wherein
a cross-section of the first receptacle (205, 511) and of the second receptacle (207, 513) is greater than a cross-section of the main body (101) but smaller than a cross-section of the protective ring (103).

### Claim 10 (depends on 8)

The housing system (200, 500) according to claim 8, wherein
a first gap (209) is present between the protective ring (103) and the first receptacle (205, 511), and a second gap (211) is present between the protective ring (103) and the second receptacle (207, 513).

### Claim 11 (depends on 8)

The housing system (200, 500) according to claim 8, wherein
the first receptacle (205, 511) is longer than the second receptacle (207, 513).

### Claim 12 (depends on 8)

The housing system (200, 500) according to claim 8, wherein
the housing system (200, 500) comprises a joining aid (515),
the joining aid (515) comprising an alignment pin (509) and a first bore (501) in the first housing (503) as well as a second bore (505) in the second housing (507).

### Claim 13 (depends on 8)

A production method (600) for producing a housing system (200, 500) according to claim 8, in which a coolant connecting piece (100) is introduced into a first housing (201, 503) and a second housing (203, 507) in order to provide a fluid-conducting connection between the first housing (201, 503) and the second housing (203, 507).