Windscreen wiper connector

Abstract

The utility model discloses a wiper connector which comprises a wiper blade, an FPC (Flexible Printed Circuit), a plastic main body, a plastic inner shell and a contact terminal, the FPC soft board is attached to the upper surface of the doctor blade, a plastic main body is arranged above the FPC soft board, two plugging holes are formed in the plastic main body, the contact terminals are arranged in the plugging holes, a plastic inner shell is arranged at the front end in each plugging hole, a plurality of clamping jaw parts extending downwards are arranged at the rear end of each contact terminal, and the clamping jaw parts are arranged in the plugging holes. And the clamping jaw part is riveted and pierced into the FPC soft board to realize circuit conduction. Compared with the prior art, the head of the contact terminal of the windscreen wiper connector required to be protected adopts a design structure of a clamping jaw, and the windscreen wiper connector and the FPC soft board adopt an assembly process of realizing conduction by riveting and puncturing, so that the contact endurance life of the connector is prolonged, the anti-vibration capability of the connector is improved, and the service life of the windscreen wiper connector is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a wiper connector. Background Technology

[0002] In existing products, wiper connector terminals transmit current to the FPC flexible circuit board via soldering. Soldering can introduce thermal stress, especially on flexible materials, where high temperatures can cause deformation or damage. Furthermore, the conductive adhesive may lack sufficient bonding strength or experience a decline in conductivity over time. As automotive connectors are subjected to prolonged vibration and bumps in real-world applications, the soldering strength gradually weakens under these conditions, significantly impacting the connector's lifespan. There is also a substantial risk of the connector terminals detaching from the solder joints of the connector and the FPC flexible circuit board. Utility Model Content

[0003] Based on the above-mentioned technical problems, this application provides a wiper connector that can greatly improve the lifespan and vibration resistance of the connector in contact with the FPC flexible board.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a wiper connector, comprising: a wiper blade, an FPC flexible board, a plastic body, a plastic inner shell, and contact terminals; the FPC flexible board is attached to the upper surface of the wiper blade, and a plastic body is provided above the FPC flexible board. The plastic body has two insertion holes, and the contact terminals are located in the insertion holes. A plastic inner shell is provided at the front end of the insertion holes, and a plurality of downwardly extending claws are provided at the rear end of each contact terminal. The claws are riveted and pierced into the FPC flexible board to achieve circuit conduction.

[0005] Furthermore, the contact terminal includes an integrally formed contact portion, a connecting portion, and a gripper portion, wherein the gripper portion is formed by bending the two sides of the connecting portion vertically downward.

[0006] Furthermore, the surface of the connecting part is recessed downwards with a groove, and the lower surface of the groove contacts the underlying FPC flexible board; the gripper part includes several tentacles arranged side by side, and the tentacles are riveted to pierce into the FPC flexible board and connect with it.

[0007] Furthermore, it also includes a circuit protection element, which is disposed on the FPC flexible board and is coplanar with the connection portion of the contact terminal.

[0008] Furthermore, the FPC flexible board includes a flat plate portion and a support portion. The support portion is bent from one side of the flat plate portion and then tilted upwards at an angle. An angled space is formed between the flat plate portion and the support portion, and the gripper portion is disposed within the angled space.

[0009] Furthermore, it also includes a cover, which is located at the rear end of the plastic body and above the support portion, covering the contact terminals.

[0010] Furthermore, a sealing ring is provided inside the plastic body, and the sealing ring abuts against the rear end of the plastic inner shell.

[0011] The beneficial effects of this utility model are as follows: by adopting a claw design structure for the contact terminal head in the wiper connector, and using a riveting and piercing assembly process to achieve conductivity between the wiper connector and the FPC flexible board, the durability and vibration resistance of the connector contact are increased, thereby improving the service life of the connector. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the wiper connector in an embodiment of this utility model;

[0013] Figure 2 This is an exploded view of the wiper connector in an embodiment of the present invention;

[0014] Figure 3 This is a side view of the plastic body, contact terminals, and FPC flexible board after they are connected in an embodiment of this utility model.

[0015] Figure 4 This is a schematic diagram of the contact terminal structure in an embodiment of the present invention;

[0016] Reference numerals: 10-scraper, 20-FPC flexible board, 30-plastic body, 40-cover, 50-plastic inner shell, 60-sealing ring, 70-contact terminal, 80-circuit protection element, 201-support part, 202-flat part, 203-angle space, 301-insertion hole, 701-contact part, 702-connection part, 703-claw part, 7020-groove part. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] This application provides a wiper connector to solve the technical problem of easy detachment of terminals in existing wiper connectors. It should be noted that in this application, the direction of the contact portion relative to the connecting portion is front, front end, or forward, and the opposite direction is rear, rear end, or rearward; the direction of the cover relative to the wiper blade is up, above, upper side, upper end, top, top tip, or top, and the opposite direction is down, below, lower side, lower end, bottom, bottom tip, or bottom.

[0019] like Figures 1 to 4 The following is an embodiment of this application: A wiper connector includes: a long strip-shaped wiper blade 10, with an FPC flexible board 20 attached to the upper surface of the wiper blade 10. Since the FPC flexible board 20 is flexible, it is entirely attached to the upper surface of the wiper blade 10. Two traces (not shown in the figure) can be provided on the surface of the FPC flexible board 20. A plastic body 30 is provided above the FPC flexible board 20. Two insertion holes 301 are provided inside the plastic body 30. Two contact terminals 70 are provided inside the plastic inner shell 50. The plastic inner shell 50 is provided at the front end of the insertion hole 301. The plastic inner shell 50 is sleeved on the front end of the contact terminal 70. At the rear end of each contact terminal 70, that is, on the side near the FPC flexible board 20, several downwardly extending claw portions 703 are provided. The claw portions 703 are riveted and pierced into the FPC flexible board 20 to realize circuit conduction.

[0020] Reference Figure 4 The contact terminal 70 includes an integrally formed contact portion 701, a connecting portion 702, and a gripper portion 703. The gripper portion 703 is formed by bending vertically downwards from both sides of the connecting portion 702. The gripper portion 703 presents a plurality of tentacles arranged side by side. The tentacles are riveted into and contact the FPC flexible board 20. The contact portion 701 is needle-shaped at the front end and extends out from the insertion hole 301. In order to fully contact the FPC flexible board 20, the surface of the connecting portion 702 is recessed downwards to form a groove portion 7020. The lower surface of the groove portion 7020 is in full contact with the FPC flexible board 20 below. The advantage is that by riveting the contact terminal 70 into the FPC flexible board 20, the connection performance is improved and the connection is more stable.

[0021] Reference Figure 3 In order to avoid the gripper portion 703, the FPC flexible board 20 is configured into two parts: a flat plate portion 201 and a support portion 202. The support portion 202 is bent and folded from one side of the flat plate portion 201 and then tilted upwards at an angle. An angled space 203 is formed between the flat plate portion 201 and the support portion 202, and the gripper portion 703 is located within the angled space 203.

[0022] Reference Figure 2The wiper connector in this embodiment also includes a circuit protection element 80, which is located above the FPC flexible board 20, and is coplanar with the rear end of the contact terminal 70 and the connecting portion 702 of the contact terminal 70. As a preferred embodiment, a cover 40 may also be provided, which is located at the rear end of the plastic body 30 and above the bracket portion 202 to cover the contact terminal 70.

[0023] To improve mechanical stability and buffer vibration, a sealing ring 60 is provided inside the plastic body. The sealing ring 60 abuts against the rear end of the plastic inner shell 50. Vibration during vehicle operation may cause the wiper connector to loosen or the terminals to make poor contact. The sealing ring 60 can provide a certain buffering effect, enhance the mechanical stability of the connector, and further fix the position of the contact terminal 70 to prevent it from moving or falling off inside the wiper connector.

[0024] In terms of process, the structure of this solution involves molding the contact terminal 70 onto the plastic body 30, then inserting the sealing ring 60 into the plastic body, and finally inserting the plastic inner shell 50 into the plastic body 30 to complete the connector assembly.

[0025] By adopting a claw design structure for the contact terminal head in the wiper connector, and using a riveting and piercing assembly process to achieve conductivity between the wiper connector and the FPC flexible board 20, the durability and vibration resistance of the connector contact are increased, thus improving the service life of the connector.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wiper connector comprising: The utility model discloses a scraping piece, FPC soft board, plastic main body, plastic inner shell, contact terminal, the FPC soft board is attached on the scraping piece upper surface, is equipped with the plastic main body in the upper of FPC soft board, two plug-in holes are equipped in the plastic main body, the contact terminal is equipped in the plug-in hole, the inside front end of plug-in hole is equipped with the plastic inner shell, its characterized in that: the rear end of every contact terminal is equipped with a plurality of downward extension's clamping jaw part, the clamping jaw part riveting pressure puncture into FPC soft board and realizes circuit conduction.

2. The wiper connector of claim 1, wherein: The contact terminal includes integrally-formed contact part, connecting part and clamping jaw part, and the clamping jaw part is formed by vertically downward bending on both sides of the connecting part.

3. The rain-repellent connector of claim 2, wherein: The surface of the connecting part is concave with a groove part downward, and the lower surface of the groove part contacts with the FPC soft board below; the clamping jaw part includes a plurality of side-by-side arranged feelers, and the feelers riveting pressure puncture into the FPC soft board and contact with it.

4. The rain-repellent connector of claim 2, wherein: The utility model also includes a circuit protection element, which is arranged on the FPC soft board and coplanar with the connecting part of the contact terminal.

5. The rain-repellent connector of claim 1, wherein: The FPC soft board includes a flat plate part and a bracket part, the bracket part is bent from one end side of the flat plate part and then obliquely upward, an included angle space is formed between the flat plate part and the bracket part, and the clamping jaw part is arranged in the included angle space.

6. The rain-repellent connector of claim 5, wherein: The utility model also includes a cover, which is arranged at the rear end of the plastic main body and covers the contact terminal above the bracket part.

7. The rain-repellent connector of claim 1, wherein: The plastic main body is also provided with a sealing ring, which abuts against the rear end of the plastic inner shell.

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