# US 12,112,616 B2 · Haptic feedback system

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- Number: US 12,112,616 B2
- Document ID: US12112616B2
- Status: Granted
- Kind: B2
- Application number: 17/576,457
- Filed: 2022-01-14
- Published: 2022-07-21
- Granted: 2024-10-08
- Earliest claimed: 2021-01-15
- Assignees: TDK Taiwan Corp.
- Applicants: TDK Taiwan Corp.
- Inventors: Ko-Lun Chao; Liang-Ting Ho
- Web page: https://patentgrep.com/patent/US12112616B2

## CPC

- G08B 6/00: Tactile signalling systems, e.g. tactile personal calling systems
- H02K 33/16: with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})

## Abstract

The present disclosure provides a haptic feedback system including a movable part, a fixing assembly, a driving assembly, and a circuit assembly. The movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly to generate a feedback force. The circuit assembly is configured to be electrically connected to the driving assembly. The circuit assembly is electrically connected to an external circuit.

## Claims

### Claim 1

A haptic feedback system, comprising:
a movable part;
a fixing assembly, wherein the movable part is movable relative to the fixed assembly;
a driving assembly, configured to drive the movable part to move relative to the fixed assembly to generate a feedback force; and
a circuit assembly, configured to be electrically connected to the driving assembly;
wherein the circuit assembly is electrically connected to an external circuit,
wherein the circuit assembly includes:
a first contact, configured to be connected to an electronic component;
a second contact, configured to be connected to the external circuit;
a third contact, configured to be connected to the external circuit;
a fourth contact, configured to be connected to the electronic component; and
a fifth contact, configured to be connected to the external circuit;
the electronic component is configured to output an input signal;
the input signal is transmitted to the external circuit through the first contact and the second contact in sequence;
the second contact extends along a first axis.

### Claim 2 (depends on 1)

The haptic feedback system as claimed in claim 1, wherein
the circuit assembly further includes:
a first circuit element, electrically connected to the first contact and the second contact;
a second circuit element, electrically connected to the third contact; and
a third circuit element, electrically connected to the fourth contact and the fifth contact;
the first circuit element has a plate-shaped structure;
a thickness of the first circuit element is greater than 0.03 mm;
the first circuit element includes a first section, a second section and a third section;
an extending direction of the first section is different from an extending direction of the second section;
the extending direction of the second section is different from an extending direction of the third section;
the extending direction of the third section is parallel to the extending direction of the first section.

### Claim 3 (depends on 2)

The haptic feedback system as claimed in claim 2, wherein
the first contact is located on the first section;
the second contact is located on the third section;
the third contact extends along the first axis;
the driving assembly is electrically connected to the third contact;
the driving assembly is electrically connected to the external circuit via the second circuit element and the third contact.

### Claim 4 (depends on 3)

The haptic feedback system as claimed in claim 3, wherein
the second contact and the third contact are arranged along a second axis;
the second axis is perpendicular to the first axis;
the first contact is electrically independent from the third contact;
the fifth contact extends along the first axis;
an extending direction of the fifth contact is opposite to an extending direction of the second contact;
the electronic component is electrically connected to the fifth contact;
the fifth contact is electrically independent from the third contact.

### Claim 5 (depends on 4)

The haptic feedback system as claimed in claim 4, wherein when viewed along a main axis, the haptic feedback system has a polygonal structure;
the main axis is perpendicular to the first axis;
the main axis is perpendicular to the second axis;
when viewed along the main axis, the second contact is located on a first side of the haptic feedback systems;
when viewed along the main axis, the third contact is located on the first side;
when viewed along the main axis, the fifth contact is located on a second side of the haptic feedback system;
the first contact is exposed on a first surface of the fixed assembly;
the fourth contact is exposed on the first surface;
the first surface is perpendicular to the main axis.

### Claim 6 (depends on 5)

The haptic feedback system as claimed in claim 5, wherein
the fixed assembly further includes:
a top wall, having a plate-shaped structure and perpendicular to the main axis;
a first side wall, parallel to the main axis;
a second side wall, parallel to the main axis; and
a base, having a plate-shaped structure and parallel to the top wall;
the first surface is located on the top wall;
the first section is disposed on the top wall;
at least a part of the first section is embedded in the top wall, and a part of the first section is exposed on the top wall;
the second section is disposed in the first side wall;
at least a part of the second section is embedded in the first side wall.

### Claim 7 (depends on 6)

The haptic feedback system as claimed in claim 6, wherein the haptic feedback system further includes:
a first transmission element, configured to transmit the feedback force to the electronic component; and
a second transmission element, configured to transmit the feedback force to the electronic component;
the first transmission element is configured to be fixedly connected to the electronic component;
a material of the first transmission element is different from a material of the top wall;
the Young's modulus of the first transmission element is greater than the Young's modulus of the top wall;
at least a portion of the first transmission element is embedded in and not exposed on the top wall;
the first transmission element has a metal material;
the top wall has a non-metal material.

### Claim 8 (depends on 7)

The haptic feedback system as claimed in claim 7, wherein
the first transmission element has a plate-shaped structure;
the first transmission element includes a fourth section and a fifth section;
when viewed in a direction perpendicular to the main axis, the fourth section overlaps at least a part of the first section;
at least a portion of the fourth section is embedded in and not exposed on the top wall;
an extending direction of the fourth section is parallel to the extending direction of the first section.

### Claim 9 (depends on 8)

The haptic feedback system as claimed in claim 8, wherein
when viewed along the main axis, an area of the fourth section is larger than an area of the first section;
a thickness of the first transmission element is the same as a thickness of the first circuit element;
the first transmission element is electrically independent from the first circuit element;
when viewed along the main axis, the fifth section is located on the first side;
when viewed along the second axis, an outer side surface of the second section and an outer side surface of the fifth section face the same direction and do not overlap each other;
when viewed along the second axis, the second section does not overlap the fifth section.

### Claim 10 (depends on 9)

The haptic feedback system as claimed in claim 9, wherein the haptic feedback system further includes:
a first elastic member, wherein the movable part is movably connected to the fixed assembly through the first elastic member; and
a second elastic member, wherein the movable part is movably connected to the fixed assembly through the second elastic member;
the first elastic member includes:
a first fixed end, fixedly connected to the movable part;
a second fixed end, fixedly connected to the first transmission element; and
a first elastic portion, having flexibility, wherein the first fixed end is movable relative to the second fixed end through the first elastic portion.

### Claim 11 (depends on 10)

The haptic feedback system as claimed in claim 10, wherein
the second fixed end is movable relative to the fixed assembly;
the second fixed end is located between the fifth section and the first side wall;
the first side wall has an opening structure configured to expose the second fixed end or the fifth section.

### Claim 12 (depends on 11)

The haptic feedback system as claimed in claim 11, wherein
the haptic feedback system further includes:
a first transmission point, located between the first elastic member and the first transmission element; and
a second transmission point, located between the second elastic member and the second transmission element;
when viewed along the main axis, the movable part is located between the first transmission point and the second transmission point;
when viewed along the main axis, a connecting line of the first transmission point and the second transmission point passes through the movable part.

### Claim 13 (depends on 12)

The haptic feedback system as claimed in claim 12, wherein
the second circuit element includes a sixth section;
the driving assembly is electrically connected to the third contact through the sixth section;
when viewed along the second axis, the first section does not overlap the sixth section;
when viewed along the second axis, the movable part is located between the first section and the sixth section;
when viewed along the main axis, the first section overlaps a portion of the movable part;
when viewed along the main axis, the sixth section overlaps a portion of the movable part.

### Claim 14 (depends on 13)

The haptic feedback system as claimed in claim 13, wherein
the first transmission element includes a first transmission portion fixedly connected to the electronic component;
the first transmission portion is connected to the fifth section via the fourth section;
an extending direction of the first transmission portion is different from the extending direction of the fourth section;
the extending direction of the first transmission portion is parallel to the main axis.

### Claim 15 (depends on 14)

The haptic feedback system as claimed in claim 14, wherein
the electronic component is fixedly disposed in the fixed assembly;
the electronic component is fixedly disposed on the first surface;
the haptic feedback system further includes an adhesive element configured to fix the electronic component and the fixed assembly;
when viewed in a direction perpendicular to the first surface, the adhesive element surrounds the first contact.

### Claim 16 (depends on 15)

The haptic feedback system as claimed in claim 15, wherein
the adhesive element directly contacts the fixed assembly;
the adhesive element directly contacts the first surface;
the adhesive element directly contacts the electronic component;
the Young's modulus of the adhesive element is greater than 0.2 Gpa.

### Claim 17 (depends on 16)

The haptic feedback system as claimed in claim 16, wherein
the haptic feedback system is configured to be disposed on an electronic device;
a device surface of the electronic device has a feedback portion corresponding to a portion of the electronic component;
the electronic component includes a first outer surface and a second outer surface;
the first outer surface and the second outer surface face the same direction;
at least a part of the first outer surface is exposed from the feedback portion;
when viewed in a direction perpendicular to the device surface, the device surface overlaps at least a portion of the second outer surface.

### Claim 18 (depends on 17)

The haptic feedback system as claimed in claim 17, wherein
in the direction perpendicular to the device surface, there is a gap between the first outer surface and the second outer surface;
the haptic feedback system further includes a sealing element disposed in the gap;
the sealing element is in direct contact with the electronic device;
when viewed in the direction perpendicular to the device surface, the device surface overlaps at least a portion of the sealing element.

### Claim 19 (depends on 18)

The haptic feedback system as claimed in claim 18, wherein
the electronic component further includes a third outer surface, and the third outer surface and the first outer surface facing the same direction;
in a direction parallel to the device surface, the third outer surface is located between the first outer surface and the second outer surface;
when viewed in the direction perpendicular to the device surface, the device surface overlaps the third outer surface;
when viewed in the direction perpendicular to the device surface, the second outer surface is located between the first outer surface and the third outer surface.