A motor piercing type connection terminal for a vehicle-mounted electric scroll compressor

Abstract

The utility model discloses a kind of motor puncture type connection terminal of vehicle-mounted electric scroll compressor, including shell, the shell has sealed cavity;Motor unit is set in the sealed cavity, the motor unit includes motor body part and power terminal piece, the first end of the power terminal piece is electrically connected with the motor body part, and the second end of power terminal piece is led out by wire rod;The power terminal piece includes first clamping portion and second clamping portion, the first clamping portion connects the second clamping portion, the inner side wall of the second clamping portion is wrapped and pressed the wire rod, multiple protruding parts are formed on the inner side wall of the second clamping portion, multiple the protruding part is along the insertion direction of wire rod interval arrangement, each the protruding part is after puncturing the insulating part of wire rod and is electrically connected with the core wire of wire rod.The utility model realizes the advantages that metal is connected efficiently, and connection process is simple.

Description

Technical Field

[0001] This utility model relates to the field of compressors, and in particular to a piercing connection terminal for a vehicle-mounted electric scroll compressor motor. Background Technology

[0002] With the rapid development of the new energy vehicle market, the demand for vehicle-mounted electric scroll compressors has also increased significantly. The compressor motor includes the motor body, terminals, and a terminal box, with the terminals primarily used for connecting the motor to the controller. Specifically, during actual installation, the terminals need to be connected to the motor's enameled wire, and this connection requires soldering for reinforcement. However, current soldering processes have the following drawbacks: the enamel coating on the outer layer of the enameled wire mainly serves to prevent corrosion and oxidation in the working environment. The enameled wire is typically stripped mechanically, manually, or chemically, and then the stripped wire is connected to the terminals using solder. This traditional connection process is not only inefficient but also prone to problems such as incomplete soldering, inadequate sealing of the stripped area, and easy corrosion and oxidation of the copper wire beneath the enamel, damaging motor performance and affecting product usability. Furthermore, the soldering process requires five steps, resulting in high production costs. Therefore, there is an urgent need to develop a terminal connection solution that achieves efficient metal connection with a simple connection process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a piercing-type connection terminal for vehicle-mounted electric scroll compressor motors, which achieves the advantages of efficient metal connection and simple connection process.

[0004] This utility model is achieved through the following technical solution: A piercing-type connection terminal for a vehicle-mounted electric scroll compressor motor is provided, applicable to a vehicle-mounted compressor comprising a housing and a motor unit. The housing has a sealed cavity; The motor unit is disposed in the sealed cavity. The motor unit includes a motor body and a power terminal. The first end of the power terminal is electrically connected to the motor body, and the second end of the power terminal is led out through a wire. The power terminal includes a first snap-fit ​​portion and a second snap-fit ​​portion. The first snap-fit ​​portion is connected to the second snap-fit ​​portion. The inner sidewall of the second snap-fit ​​portion is wrapped around the wire. A plurality of protrusions are formed on the inner sidewall of the second snap-fit ​​portion. The plurality of protrusions are spaced apart along the insertion direction of the wire. Each protrusion is electrically connected to the core wire of the wire after piercing the insulation portion of the wire.

[0005] Furthermore, the outer end face of the protrusion has a U-shaped cross-section perpendicular to the insertion direction of the wire, and protrusions are formed at both ends of the outer end face of the protrusion.

[0006] Furthermore, the distance by which the protrusion extends toward the wire is between 0.05 and 0.15 mm.

[0007] Furthermore, a clearance groove is formed between the sidewalls of two adjacent protrusions.

[0008] Furthermore, the protrusions extend circumferentially along the wire.

[0009] Furthermore, the ratio of the circumferential length of the protrusion to the circumferential length of the outer wall of the wire is between 0.9 and 0.98.

[0010] Furthermore, the number of the protruding parts is 5-9.

[0011] Furthermore, the protrusions on the protruding portion are elongated or wavy in the circumferential direction.

[0012] Compared to existing technologies, the advantages of this invention are as follows: By providing a second snap-fit ​​portion, which is open before wrapping the wire, the wire is easily placed into a preset position. Pressure is then applied inwards, allowing the inner wall to completely wrap the wire, enabling rapid installation. Furthermore, the protrusions pierce the insulation of the wire during wrapping, connecting it to the core wire and effectively connecting the compressor to external devices via the wire. It is also noteworthy that the multiple protrusions ensure effective electrical connection between the second snap-fit ​​portion and the wire. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the piercing connection terminal of the vehicle-mounted electric scroll compressor motor according to an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the second snap-fit ​​portion of the piercing connection terminal of the vehicle-mounted electric scroll compressor motor according to an embodiment of this utility model.

[0014] Labeling explanation: 1. Power terminal; 11. First snap-fit ​​part; 12. Second snap-fit ​​part; 13. Protrusion part; 14. Protrusion; 15. Clearance groove; 16. Wire. Detailed Implementation

[0015] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0016] like Figure 1 and Figure 2 As shown, this utility model provides a piercing connection terminal for a vehicle-mounted electric scroll compressor motor, which is applied to a vehicle-mounted compressor. The vehicle-mounted compressor includes a housing (not shown in the figure), a motor unit (not shown in the figure), and a power terminal 1. The housing has a sealed cavity, the motor unit is disposed inside the sealed cavity, and the power terminal 1 is electrically connected to an external device via a lead wire 16.

[0017] In this embodiment, the motor unit includes a motor body and a power terminal 1. A first end of the power terminal 1 is electrically connected to the motor body, and a second end of the power terminal 1 is led out via a wire 16. The power terminal 1 includes a first snap-fit ​​portion 11 and a second snap-fit ​​portion 12. Preferably, the first snap-fit ​​portion 11 and the second snap-fit ​​portion 12 are integrally formed to ensure processing efficiency. It is also worth noting that the first snap-fit ​​portion 11 and the second snap-fit ​​portion 12 are made of metal wire 16. This integral forming also ensures the effectiveness of the electrical connection between the first snap-fit ​​portion 11 and the second snap-fit ​​portion 12.

[0018] In this embodiment, the inner wall of the second snap-fit ​​portion 12 wraps around the wire 16. Multiple protrusions 13 are formed on the inner wall of the second snap-fit ​​portion 12, and these protrusions 14 are spaced apart along the insertion direction of the wire 16. Each protrusion 13, after piercing the insulation of the wire 16, is electrically connected to the core wire of the wire 16. Through this arrangement, the second snap-fit ​​portion 12 is initially open before wrapping the wire 16, allowing the wire 16 to be easily inserted into a preset position. Then, pressure is applied inward, ensuring that its inner wall completely wraps around the wire 16, achieving rapid installation of the wire 16. Furthermore, the protrusions 13, during the wrapping process, pierce the insulation of the wire 16 and electrically connect to the core wire, effectively connecting the compressor to external devices via the wire 16. It is also worth noting that the number of protrusions 13 is multiple, which can effectively ensure the electrical connection between the second snap-fit ​​part 12 and the wire 16.

[0019] In this embodiment, the outer end face of the protrusion 13 has a U-shaped cross-section perpendicular to the insertion direction of the wire 16, and protrusions 14 are formed at both ends of the outer end face of the protrusion 13. Preferably, the distance by which the protrusions 14 extend toward the wire 16 is between 0.05 and 0.15 mm. With the above-mentioned position and protrusion distance, the protrusions 14 can be effectively inserted into the wire 16 for electrical connection with the battery cell.

[0020] The middle position of the protrusion 13 is concave. During the piercing process, the protrusion 14 squeezes the insulation of the wire 16 to both sides. This concave structure can effectively accommodate the squeezed insulation, so as to facilitate the effective completion of the piercing action of the protrusion 13.

[0021] It is also worth noting that the sidewalls of two adjacent protrusions 13 form an avoidance groove 15, and the sidewall of the second snap-fit ​​part 12 forming the groove can closely adhere to the outer sidewall of the insulation part of the wire 16, thereby achieving a good sealing effect on the protrusions 13 and preventing them from being corroded and oxidized by the working environment.

[0022] In this embodiment, the protrusion 13 extends circumferentially along the wire 16, wherein the ratio of the circumferential length of the protrusion 13 to the circumferential length of the outer wall of the wire 16 is between 0.9 and 0.98. With this arrangement, the protrusion 13 will not completely pierce the insulation in the circumferential direction, thus avoiding misalignment of the insulation during installation processes such as pulling.

[0023] In this embodiment, the number of protrusions 13 is 5-9. The protrusions 14 on the protrusions 13 are elongated or corrugated in the circumferential direction. The main purpose of the above design is that the protrusions 13 can effectively pierce the insulation of the wire 16, ensuring the effectiveness of the electrical connection between the second locking part 12 and the wire 16; it also indirectly ensures the effectiveness of the motor body part being electrically connected to the second locking part 12 after passing through the first locking part 11.

[0024] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model 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 piercing-type connection terminal for a vehicle-mounted electric scroll compressor motor, applied to a vehicle-mounted compressor, the vehicle-mounted compressor comprising a housing and a motor unit, characterized in that, The housing has a sealed cavity; The motor unit is disposed in the sealed cavity. The motor unit includes a motor body and a power terminal. The first end of the power terminal is electrically connected to the motor body, and the second end of the power terminal is led out through a wire. The power terminal includes a first snap-fit ​​portion and a second snap-fit ​​portion. The first snap-fit ​​portion is connected to the second snap-fit ​​portion. The inner sidewall of the second snap-fit ​​portion is wrapped around the wire. A plurality of protrusions are formed on the inner sidewall of the second snap-fit ​​portion. The plurality of protrusions are spaced apart along the insertion direction of the wire. Each protrusion is electrically connected to the core wire of the wire after piercing the insulation portion of the wire.

2. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 1, characterized in that, The outer end face of the protrusion has a U-shaped cross-section perpendicular to the insertion direction of the wire, and protrusions are formed at both ends of the outer end face of the protrusion.

3. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 2, characterized in that, The distance by which the protrusion extends toward the wire is between 0.05 and 0.15 mm.

4. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 1, characterized in that, The sidewalls of two adjacent protrusions form an avoidance groove.

5. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 1, characterized in that, The protrusions extend circumferentially along the wire.

6. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 5, characterized in that, The ratio of the circumferential length of the protrusion to the circumferential length of the outer wall of the wire is between 0.9 and 0.

98.

7. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 1, characterized in that, The number of the spikes is 5-9.

8. The piercing-type connection terminal for the vehicle-mounted electric scroll compressor motor according to claim 1, characterized in that, The protrusions on the protruding part are elongated or wavy in the circumferential direction.

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