Electrical connector, electric machine controller and vehicle
The design, which uses one-piece molded terminals and is embedded in the housing, simplifies the structure of electrical connectors, reduces costs and resistance, improves reliability and vibration resistance, and enables miniaturization of electrical connectors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAOMI EV TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-19
AI Technical Summary
Existing electrical connectors are complex in structure, expensive, and have high resistance.
The device employs an integrally molded connection terminal, with a portion of the connection terminal embedded within the housing. First and second electrical connection portions are provided at both ends of the terminal, simplifying the structure and reducing the number of parts. Silver-plated terminals enhance oxidation resistance, inserts and connecting sleeves improve connection reliability, and welding and fastener connection methods optimize electrical connections.
It reduces the cost and resistance of electrical connectors, improves connection reliability and vibration resistance, and enables miniaturized design of electrical connectors.
Smart Images

Figure CN224384563U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of electrical connector technology, specifically to an electrical connector, a motor controller, and a vehicle. Background Technology
[0002] Electrical connectors are widely used in production and daily life. Based on their connection method, they can be categorized into threaded connections, through-hole connections, and snap-fit connections. In related technologies, electrical connectors include a housing and multiple connecting segments. These connecting segments are assembled and connected to the housing, and adjacent connecting segments are electrically connected. The connecting segments at the ends are connected to electrical components, thus achieving the electrical connection between two electrical components. The aforementioned electrical connectors have a complex structure, high cost, and relatively high resistance. Utility Model Content
[0003] This disclosure proposes an electrical connector that simplifies the connector's structure, reduces its cost, and decreases its resistance.
[0004] The electrical connector disclosed herein includes a housing and a connecting terminal, wherein the connecting terminal is integrally formed, a portion of the connecting terminal is embedded in the housing, one end of the connecting terminal is provided with a first electrical connection portion, and the other end of the connecting terminal is provided with a second electrical connection portion.
[0005] Optionally, the first electrical connection portion includes a welding portion, and the second electrical connection portion has a connection hole for connection with a fastener.
[0006] Optionally, the electrical connector further includes an insert embedded in the housing, the insert having a threaded hole corresponding to the connection hole, the threaded hole being used for threaded connection with the fastener.
[0007] Optionally, the connection terminal includes a first segment, a second segment, and a transition segment. The first segment and the second segment are disposed on opposite sides of the housing in the height direction of the electrical connector. A first electrical connection portion is disposed in the first segment, a second electrical connection portion is disposed in the second segment, and at least a portion of the transition segment is embedded in the housing.
[0008] Optionally, at least a portion of the transition section extends in a direction that intersects the height direction of the housing.
[0009] Optionally, the extension direction of the first segment and the extension direction of the second segment both intersect the height direction of the electrical connector.
[0010] Optionally, there is a gap between the first segment and the housing; and / or, the end face of the second segment near the transition segment is attached to and connected to the housing.
[0011] Optionally, the first segment and the second segment are located on the same side of the transition segment in a first direction, which is perpendicular to the height direction of the electrical connector.
[0012] Optionally, the number of connection terminals is multiple, and the connection terminals include a first terminal and a second terminal, the first terminal and the second terminal being arranged at intervals along the first direction; the first segment and the second segment of the first terminal are located on the side of the transition segment away from the second terminal.
[0013] Optionally, the electrical connector further includes a connecting sleeve, at least a portion of which is embedded within the housing, through which a connector passes.
[0014] Optionally, the housing includes a main body and a connecting ear, at least a portion of the transition section is embedded in the main body, the connecting ear protrudes from the main body in a second direction, the connecting tube is embedded in the connecting ear, and the second direction is perpendicular to the first direction and the height direction of the electrical connector.
[0015] Optionally, the extension direction of the second segment intersects with the first direction.
[0016] Optionally, the electrical connector is integrally injection molded.
[0017] This disclosure also proposes a motor controller.
[0018] The motor controller disclosed herein includes the electrical connector described in any of the foregoing claims.
[0019] This disclosure also proposes a vehicle.
[0020] The vehicles disclosed herein include any of the electrical connectors or motor controllers described above.
[0021] The disclosed electrical connector, by providing a first electrical connection portion at one end of the connecting terminal and a second electrical connection portion at the other end of the connecting terminal, allows the first and second electrical connection portions to be electrically connected to two electrical components respectively, thereby achieving electrical connection between the two electrical components. By integrally molding the connecting terminal and embedding a portion of the connecting terminal within the housing, the number of components in the electrical connector can be reduced, the structure of the electrical connector can be simplified, and thus the cost of the electrical connector can be reduced. Furthermore, the contact resistance of the connecting terminal can be reduced, thereby reducing the resistance of the electrical connector. Attached Figure Description
[0022] Figure 1 This is a top view of an electrical connector according to an embodiment of the present disclosure.
[0023] Figure 2 yes Figure 1 AA view.
[0024] Figure 3 This is a partial structural schematic diagram of a motor controller according to an embodiment of the present disclosure.
[0025] Figure label:
[0026] 10. Electrical connectors;
[0027] 1. Shell; 11. Main body; 12. Connecting lug;
[0028] 2. Connecting terminal; 21. First electrical connection part; 211. Welding part; 22. Second electrical connection part; 221. Connecting hole; 23. Transition section; 201. First terminal; 202. Second terminal;
[0029] 3. Inserts;
[0030] 4. Connecting cylinder;
[0031] 20. Controller housing. Detailed Implementation
[0032] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.
[0033] like Figure 1 and Figure 2 As shown, the electrical connector 10 of this embodiment includes a housing 1 and a connecting terminal 2. The connecting terminal 2 is integrally formed, and a portion of the connecting terminal 2 is embedded in the housing 1. One end of the connecting terminal 2 is provided with a first electrical connection portion 21, and the other end of the connecting terminal 2 is provided with a second electrical connection portion 22.
[0034] The electrical connector 10 of this embodiment provides a first electrical connection portion 21 at one end of the connection terminal 2 and a second electrical connection portion 22 at the other end of the connection terminal 2. This allows the first electrical connection portion 21 and the second electrical connection portion 22 to be electrically connected to two electrical components, thereby achieving electrical connection between the two electrical components. By integrally molding the connection terminal 2 and embedding a portion of the connection terminal 2 within the housing 1, the number of components in the electrical connector 10 can be reduced, simplifying the structure of the electrical connector 10 and thus reducing its cost. Furthermore, the contact resistance of the connection terminal 2 can be reduced, thereby reducing the resistance of the electrical connector 10.
[0035] The first electrical connection part 21 can be electrically connected to the first electrical component, and the second electrical connection part 22 can be electrically connected to the second electrical component, thereby realizing the electrical connection between the first and second electrical components. The first electrical component can be a filter, and the second electrical component can be a cable.
[0036] Optionally, the connecting terminal 2 is a silver-plated terminal.
[0037] For example, the connecting terminal 2 is a copper busbar, and the surface of the copper busbar is plated with silver.
[0038] By setting the connecting terminal 2 as a silver-plated terminal, the oxidation resistance and corrosion resistance of the connecting terminal 2 can be improved, thereby improving the reliability of the electrical connector 10.
[0039] Optionally, such as Figure 2 As shown, the first electrical connection portion 21 includes a welding portion 211, and the second electrical connection portion 22 has a connection hole 221 for connection with a fastener.
[0040] For example, welding part 211 is laser-welded to the first electrical component, realizing the electrical connection between connecting terminal 2 and the first electrical component. Fasteners pass through connecting hole 221 and connect to the second electrical component, realizing the electrical connection between connecting terminal 2 and the second electrical component. The fasteners can be screws.
[0041] The first electrical connection part 21 is welded to the corresponding electrical component, and the second electrical connection part 22 is connected to the corresponding electrical component through fasteners. This can improve the reliability of the electrical connection between the connection terminal 2 and the corresponding electrical component, improve the vibration resistance level of the electrical connector 10, and thus expand the application range of the electrical connector 10.
[0042] Optionally, such as Figure 1 and Figure 2 As shown, the electrical connector 10 also includes an insert 3, which is embedded in the housing 1. The insert 3 has a threaded hole corresponding to the connection hole 221, and the threaded hole is used for threaded connection with a fastener.
[0043] When the second electrical connection part 22 is electrically connected to the second electrical device, the fastener passes through the connection hole 221 and is connected to the threaded hole screw of the insert 3 to realize the electrical connection between the connection terminal 2 and the second electrical device.
[0044] The inclusion of insert 3 can increase the connection area between the fastener and the electrical connector 10, improve the connection reliability between the fastener and the electrical connector 10, and thus improve the connection reliability between the electrical connector 10 and the corresponding electrical components.
[0045] Optionally, such as Figure 2 As shown, the connecting terminal 2 includes a first segment, a second segment, and a transition segment 23. The first segment and the second segment are located on opposite sides of the housing 1 in the height direction of the electrical connector 10. A first electrical connection portion 21 is located in the first segment, a second electrical connection portion 22 is located in the second segment, and at least a portion of the transition segment 23 is embedded in the housing 1.
[0046] By placing the first segment and the second segment on opposite sides of the housing 1 in the height direction of the electrical connector 10, with the first electrical connection 21 located in the first segment and the second electrical connection 22 located in the second segment, the distance between the first electrical connection 21 and the second electrical connection 22 is relatively large, which facilitates the electrical connection of the first electrical connection 21 and the second electrical connection 22 with the corresponding electrical components and helps to improve the connection efficiency of the electrical connector 10.
[0047] To make the technical solution of this disclosure easier to understand, the following description further illustrates the technical solution of this disclosure, taking the example that the height direction of the electrical connector 10 is consistent with the vertical direction. Wherein, the vertical direction is as follows... Figure 1 As shown.
[0048] For example, the first section is located on the upper side of the housing 1, the second section is located on the lower side of the housing 1, the upper end of the transition section 23 is connected to the first section, and the lower end of the transition section 23 is connected to the second section.
[0049] Optionally, such as Figure 2 As shown, at least a portion of the transition section 23 extends in a direction that intersects the height direction of the housing 1.
[0050] For example, such as Figure 2 As shown, a portion of the transition segment 23 extends in a direction that intersects with the vertical direction.
[0051] By setting the extension direction of the transition section 23 to intersect with the height direction of the housing 1, a larger portion of the transition section 23 is embedded in the housing 1, which increases the connection area between the transition section 23 and the housing 1, improves the connection reliability between the connection terminal 2 and the housing 1, and further improves the reliability of the electrical connector 10.
[0052] Optionally, such as Figure 2 As shown, the extension directions of the first segment and the second segment both intersect the height direction of the electrical connector 10.
[0053] By having the extension directions of both the first and second segments intersect the height direction of the electrical connector 10, the height and volume of the electrical connector 10 can be reduced, which is beneficial for the miniaturization design of the electrical connector 10.
[0054] Optionally, such as Figure 2 As shown, there is a gap between the first segment and the housing 1.
[0055] Since the first segment needs to be soldered to the corresponding electrical component, by setting a gap between the first segment and the housing 1, damage to the housing 1 can be avoided during the soldering operation. On the other hand, the first segment can undergo a certain degree of deformation to absorb deformation caused by soldering. As a result, the reliability of the electrical connector 10 can be further improved.
[0056] Optionally, such as Figure 2 As shown, the end face of the second section near the transition section 23 is attached to and connected to the housing 1.
[0057] By connecting the end face of the second segment near the transition segment 23 to the housing 1, the connection area between the connection terminal 2 and the housing 1 can be further increased, thereby further improving the reliability of the electrical connector 10.
[0058] Optionally, such as Figure 2 As shown, the first segment and the second segment are located on the same side of the transition segment 23 in a first direction, which is perpendicular to the height direction of the electrical connector 10.
[0059] By placing the first segment and the second segment on the same side of the transition segment 23 in the first direction, the first segment and the second segment occupy the space on the same side of the transition segment 23, thereby further reducing the volume of the electrical connector 10 and facilitating the miniaturization design of the electrical connector 10.
[0060] To make the technical solution of this disclosure easier to understand, the following description further illustrates the technical solution of this disclosure, taking the first direction and the left and right directions being consistent as an example. Wherein, the left and right directions are as follows... Figure 1 and Figure 2 As shown.
[0061] For example, the first and second segments are both located to the left of the transition segment 23, or the first and second segments are both located to the right of the transition segment 23.
[0062] Optionally, such as Figure 2 As shown, there are multiple connecting terminals 2, including a first terminal 201 and a second terminal 202, which are arranged at intervals along a first direction. The first segment and the second segment of the first terminal 201 are located on the side of the transition section 23 away from the second terminal 202.
[0063] In this configuration, one of the first terminal 201 and the second terminal 202 is a positive terminal, and the other of the first terminal 201 and the second terminal 202 is a negative terminal.
[0064] For example, there are two connection terminals 2, namely a first terminal 201 and a second terminal 202. The first terminal 201 is located to the left of the second terminal 202. The first segment and the second segment of the first terminal 201 are located to the left of the transition segment 23, and the first segment and the second segment of the second terminal 202 are located to the right of the transition segment 23.
[0065] By designing the first terminal 201 and the second terminal 202 as described above, the spacing between the first terminal 201 and the second terminal 202 can be increased within a limited space, thereby increasing the creepage distance between the first terminal 201 and the second terminal 202 and improving the reliability of the electrical connector 10.
[0066] Optionally, such as Figure 1 As shown, the electrical connector 10 also includes a connecting cylinder 4, at least a portion of which is embedded in the housing 1, and the connecting cylinder 4 allows the connector to pass through.
[0067] When installing the electrical connector 10, the connector passes through the connecting cylinder 4 and connects to the mounting base, thus achieving a mechanical connection between the electrical connector 10 and the mounting base. The mounting base can be the housing of the electrical component, a mounting bracket, etc.
[0068] By setting the connecting sleeve 4, the installation and fixing of the electrical connector 10 is facilitated, which helps to improve the installation efficiency of the electrical connector 10.
[0069] Among them, the connecting cylinder 4 can be a stainless steel cylinder.
[0070] Optionally, such as Figure 1 As shown, the housing 1 includes a main body 11 and a connecting ear 12. At least a portion of the transition section 23 is embedded in the main body 11. The connecting ear 12 protrudes from the main body 11 in a second direction. The connecting tube 4 is embedded in the connecting ear 12. The second direction is perpendicular to the first direction and the height direction of the electrical connector 10.
[0071] By configuring the housing 1 to include the main body 11 and the connecting ear 12, embedding the transition section 23 in the main body 11 and the connecting tube 4 in the connecting ear 12, the main body 11 and the connecting ear 12 can be designed and manufactured according to the connection requirements of the transition section 23 and the connecting tube 4, so as to save the cost of the electrical connector 10 while ensuring the reliability of the electrical connector 10.
[0072] To make the technical solution of this disclosure easier to understand, the following description further illustrates the technical solution of this disclosure using the example of the second direction being consistent with the front-back direction. Wherein, the front-back direction is as follows... Figure 1 As shown.
[0073] For example, connecting ears 12 are provided on the front and rear sides of the main body 11; in other words, connecting ears 12 are provided on both the front and rear sides of the main body 11. A connecting tube 4 is embedded in each connecting ear 12.
[0074] Optionally, the extension direction of the second segment intersects with the first direction.
[0075] For example, the second paragraph gradually tilts forward from left to right.
[0076] By setting the extension direction of the second segment to intersect with the first direction, the space in the second direction can be fully utilized while ensuring the connection area of the first electrical connection part 21. This is beneficial for further reducing the volume of the electrical connector 10 and for miniaturizing the design of the electrical connector 10.
[0077] Optionally, the electrical connector 10 is integrally injection molded. That is, the housing 1, the connecting terminal 2, the insert 3, and the connecting sleeve 4 are integrally injection molded.
[0078] By integrally injection molding the electrical connector 10, the processing and manufacturing of the electrical connector 10 is facilitated, which helps to reduce the cost of the electrical connector 10.
[0079] In the manufacture of the electrical connector 10, the connecting terminal 2, the insert 3 and the connecting cylinder 4 can be fixed in the injection mold first, and then the injection molding liquid can be injected into the injection mold. After the injection molding liquid solidifies, the housing 1 is formed, thereby realizing the connection between the housing 1, the connecting terminal 2, the insert 3 and the connecting cylinder 4.
[0080] like Figure 3 As shown, the motor controller of this embodiment includes the electrical connector 10 described in any of the above embodiments.
[0081] The first electrical connection part 21 can be electrically connected to the filter, and the second electrical connection part 22 can be electrically connected to the cable.
[0082] like Figure 3 As shown, the motor controller includes a controller housing 20, and a connector passes through the connecting cylinder 4 and connects to the controller housing 20, thereby fixing the motor controller to the controller housing 20. The connector can be a screw.
[0083] The vehicle in this disclosure includes the electrical connector 10 described in any of the above embodiments or the motor controller described in any of the above embodiments.
[0084] The electrical connector 10 of this embodiment solves the problem of assembling multi-segment connectors by insert injection molding. By providing a soldering part 211 in the first electrical connection portion 21, the contact resistance between the first electrical connection portion 21 and the corresponding electrical component is optimized through soldering. By providing an electrical connection hole 221 in the second electrical connection portion 22, the second electrical connection portion 22 and the corresponding electrical component are connected by fasteners, improving the vibration resistance and reliability of the second electrical connection portion 22 and the corresponding electrical component. Compared with electrical connectors in related technologies, the electrical connector 10 of this embodiment can reduce the resistance by 40uΩ and improve the vibration resistance from UScar-V2 to UScar-V3.
[0085] In the description of this disclosure, 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" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0086] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0087] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0088] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0089] In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0090] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.
Claims
1. An electrical connector, characterized in that, include: case; The connecting terminal is integrally formed, a portion of which is embedded in the housing. One end of the connecting terminal is provided with a first electrical connection portion, and the other end of the connecting terminal is provided with a second electrical connection portion.
2. The electrical connector according to claim 1, characterized in that, The first electrical connection portion includes a welding portion, and the second electrical connection portion has a connection hole for connection with a fastener.
3. The electrical connector according to claim 2, characterized in that, The electrical connector further includes an insert, which is embedded in the housing. The insert has a threaded hole corresponding to the connection hole and is used for threaded connection with the fastener.
4. The electrical connector according to claim 2, characterized in that, The connection terminal includes a first segment, a second segment, and a transition segment. The first segment and the second segment are disposed on opposite sides of the housing in the height direction of the electrical connector. A first electrical connection portion is disposed in the first segment, a second electrical connection portion is disposed in the second segment, and at least a portion of the transition segment is embedded in the housing.
5. The electrical connector according to claim 4, characterized in that, At least a portion of the transition section extends in a direction that intersects the height direction of the housing.
6. The electrical connector according to claim 4, characterized in that, The extension directions of the first segment and the second segment both intersect the height direction of the electrical connector.
7. The electrical connector according to claim 6, characterized in that, There is a gap between the first segment and the housing; and / or The end face of the second segment near the transition segment is attached to and connected to the housing.
8. The electrical connector according to claim 6, characterized in that, The first segment and the second segment are located on the same side of the transition segment in a first direction, which is perpendicular to the height direction of the electrical connector.
9. The electrical connector according to claim 8, characterized in that, The number of the connection terminals is multiple, and the connection terminals include a first terminal and a second terminal, wherein the first terminal and the second terminal are arranged at intervals along the first direction; The first segment and the second segment of the first terminal are located on the side of the transition segment away from the second terminal.
10. The electrical connector according to claim 9, characterized in that, The electrical connector further includes a connecting sleeve, at least a portion of which is embedded within the housing, through which a connector passes.
11. The electrical connector according to claim 10, characterized in that, The housing includes a main body and a connecting ear. At least a portion of the transition section is embedded in the main body. The connecting ear protrudes from the main body in a second direction. The connecting tube is embedded in the connecting ear. The second direction is perpendicular to the first direction and the height direction of the electrical connector.
12. The electrical connector according to claim 11, characterized in that, The extension direction of the second segment intersects with the first direction.
13. The electrical connector according to any one of claims 1-12, characterized in that, The electrical connector is integrally injection molded.
14. A motor controller, characterized in that, The electrical connector included in any one of claims 1-13.
15. A vehicle, characterized in that, It includes the electrical connector according to any one of claims 1-13 or the motor controller according to claim 14.