Female terminal structure capable of rapidly identifying reliable connection of motor terminal
By designing the integrated injection molding of the U-shaped female terminal insert and the shell, the poor contact problem caused by the crooked insertion of the motor terminal is solved, fast and reliable connection and detection are achieved, and product reliability is improved.
Patent Information
- Application Number
- CN202422952078.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In the prior art, motor terminals are prone to be inserted in a U-shaped female terminal insert, resulting in poor contact and cannot be identified in subsequent inspections, affecting product reliability.
A female terminal insert is designed as a U-shaped structure, with a shell at the bottom and injection molded into one, and the injection molded body is wrapped around the outer part to achieve insulation. The inner side of the female terminal insert is an arc-shaped structure to ensure reliable insertion of the motor terminal.
It can be detected through functional tests when the motor terminal is inserted in a crooked manner or top, ensuring product reliability and avoiding additional testing equipment and manpower investment.
Smart Images

Figure CN223156333U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of EGR valve connection terminals, and more specifically to a female terminal structure for quickly identifying reliable connection of motor terminals. Background Art
[0002] For the connection between a conventional EGR valve sensor assembly and a motor terminal, a U-shaped female terminal insert is used. However, during the process of inserting the motor terminal into the U-shaped female terminal insert, the situation of being inserted obliquely easily occurs. In this case, although the motor is still in contact with the terminal, it cannot be identified during the subsequent functional detection process, resulting in the product flowing out. Under the long-term use conditions of the customer's harsh vehicle, problems such as poor contact may occur, leading to abnormal operation of the product. Conventional detection methods can only confirm through 100% inspection by X-ray, resulting in additional investment in production lines and personnel. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a female terminal structure for quickly identifying reliable connection of motor terminals, which can insulate the motor terminal from the female terminal insert in the case where the motor terminal is inserted obliquely or pushed obliquely, facilitating detection.
[0004] To solve the above technical problems, the following technical solutions are adopted in the utility model.
[0005] A female terminal structure for quickly identifying reliable connection of motor terminals includes a female terminal insert for connecting with a motor terminal. The female terminal insert is of a U-shaped structure, and the motor terminal is inserted into the female terminal insert. A housing is arranged at the bottom of the female terminal insert. An injection molding body is arranged around the female terminal insert to wrap the outside of the female terminal insert and achieve insulation of the outside of the female terminal insert.
[0006] Further optimizing the technical solution, the inner side of the upper part of the female terminal insert is of an arc-shaped structure.
[0007] Further optimizing the technical solution, the distance between two arcs at the top of the female terminal insert is the same as the thickness of the motor terminal.
[0008] Further optimizing the technical solution, the female terminal insert and the housing are injection molded into one body.
[0009] Due to the adoption of the above technical solutions, the following technical progress is achieved in the utility model.
[0010] The female terminal structure for quickly identifying reliable connection of motor terminals provided by the utility model can ensure that in the case where the motor terminal is inserted obliquely or pushed obliquely, the motor terminal is insulated from the female terminal insert on the housing, ensuring that it can be detected through functional testing in the subsequent process, ensuring that the motor terminal is inserted into the U-shaped groove of the U-shaped female terminal, and ensuring the reliability of the final product. Brief Description of the Drawings
[0011] Figure 1 is a schematic structural view of the present utility model;
[0012] Figure 2 is a schematic connection view of the motor terminal and the female terminal of the present utility model;
[0013] Figure 3 is a schematic view of abnormal connection between the motor terminal and the female terminal of the present utility model.
[0014] Wherein: 1. Female terminal insert, 2. Outer shell, 3. Injection molded body, 4. Motor terminal. Specific embodiments
[0015] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] A female terminal structure for quickly identifying reliable connection of a motor terminal, in combination with Figure 1 as shown, includes a female terminal insert 1, the female terminal insert 1 is of a U-shaped structure and is used to connect with the motor terminal 4, the motor terminal 4 is inserted into the female terminal insert 1, the bottom of the female terminal insert 1 is provided with an outer shell 2, and the female terminal insert 1 and the outer shell 2 are injection molded into one body to realize the function of electrical connection between the automotive valve body sensor plug and the motor.
[0017] The inner side of the upper part of the female terminal insert 1 is of an arc-shaped structure, and the distance between the two arcs at the top of the female terminal insert 1 is the same as the thickness of the motor terminal 4, so that the motor terminal 4 can be smoothly inserted into the female terminal insert and achieve reliable contact. The schematic connection view of the motor terminal and the female terminal in the present utility model is as Figure 2 shown, and the motor terminal 4 is inserted into the U-shaped groove of the female terminal insert 1.
[0018] The periphery of the female terminal insert 1 is provided with an injection molded body 3, which is used to wrap the outside of the female terminal insert 1. The injection molded body 3 forms an outer injection molding enclosure for the female terminal insert, and the outside of the female terminal insert is wrapped without contacting the motor terminal, so as to realize the external insulation of the female terminal insert 1.
[0019] When the motor terminal is inserted obliquely or pushed obliquely, the motor terminal is insulated from the female terminal insert on the outer shell, which ensures that it can be identified through function detection in the subsequent process, ensures that the motor terminal can be accurately and reliably inserted into the U-shaped groove of the U-shaped female terminal, and ensures the reliability of the product after the final function detection.
[0020] In the present utility model, the schematic view of abnormal connection between the motor terminal and the female terminal is as Figure 3As shown, the motor terminal is skewed and not inserted into the U-shaped groove of the female terminal insert. Since there is an injection molding body outside the U-shaped groove, forming an outer injection molding enclosure of the female terminal insert, the motor terminal does not contact the female terminal insert and cannot form an electrical connection. Therefore, it is possible to detect the abnormal situation of the skewed insertion of the motor terminal through functional testing on the production line, and there is no need to additionally configure detection equipment (such as an industrial X-ray machine) and manpower for special inspection.
Claims
1. A female terminal structure for quickly identifying reliable connection of motor terminals, characterized in that: It includes a female terminal insert (1) for connecting with a motor terminal (4). The female terminal insert (1) has a U-shaped structure, and the motor terminal (4) is inserted into the female terminal insert (1). A housing (2) is provided at the bottom of the female terminal insert (1). An injection molding body (3) is provided around the female terminal insert (1) for wrapping the outside of the female terminal insert (1) to achieve insulation of the outside of the female terminal insert.
2. The female terminal structure for quickly identifying reliable connection of motor terminals according to claim 1, characterized in that: The inner side of the upper part of the female terminal insert (1) has an arc-shaped structure.
3. The female terminal structure for quickly identifying reliable connection of motor terminals according to claim 2, characterized in that: The distance between the two arcs at the top of the female terminal insert (1) is the same as the thickness of the motor terminal (4).
4. A female terminal structure for quickly identifying reliable connection of motor terminals according to claim 1, characterized in that: The female terminal insert (1) and the housing (2) are injection molded into one body.