High-voltage connectors and their vehicles

By introducing an arc-shaped guide and a shock-absorbing structure into the high-voltage connector, the problem of high-voltage harnesses being prone to breakage due to space constraints has been solved, achieving higher reliability and durability.

CN224582594UActive Publication Date: 2026-07-31CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The space between the motor and the vehicle body for installing the IPT high-voltage connector is small, which means that the high-voltage wiring harness needs to be bent and is prone to breakage.

Method used

Design a high-voltage connector, including a housing and a high-voltage wire harness. The housing has an arc-shaped guide and a shock-absorbing structure. The guide is connected to the connecting part, and the high-voltage wire harness passes through it. The shock-absorbing structure is located between the wire harness and the groove wall of the guide groove, and is made of silicone rubber or EPDM rubber to absorb vibration energy.

Benefits of technology

The design of the arc-shaped guide and the shock-absorbing structure reduces the probability of breakage of the high-voltage harness during bending, improves the protection effect of the harness, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a high-voltage connector and its vehicle, comprising: a housing and a high-voltage wiring harness; the housing includes a connecting portion and a guiding portion; the connecting portion is connected to the guiding portion and is used for connecting to a motor; the high-voltage wiring harness passes through the connecting portion and the guiding portion; wherein the guiding portion has an "arc-shaped structure". This high-voltage connector and its vehicle can reduce the probability of high-voltage wiring harness breakage.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive high-voltage connector technology, specifically relating to a high-voltage connector and its vehicle. Background Technology

[0002] IPT (Inductive Power Transfer) high-voltage connectors are wireless power transmission connection systems used in high-voltage applications.

[0003] Since the motor is a high-frequency vibration source, it primarily transmits energy through the IPT high-voltage connector. However, the space between the motor and the vehicle body for installing the IPT high-voltage connector is limited, requiring the high-voltage wiring harness at the rear of the connector to be bent, which in turn makes the rear high-voltage wiring harness prone to breakage. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage connector and its vehicle that can reduce the probability of high-voltage wiring harness breakage.

[0005] The first aspect of this utility model discloses a high-voltage connector, comprising: a housing and a high-voltage wiring harness, wherein the housing includes a connecting portion and a guiding portion, the connecting portion is connected to the guiding portion, and the connecting portion is used for connecting to a motor; the high-voltage wiring harness passes through the connecting portion and the guiding portion; wherein the guiding portion is an "arc-shaped structure".

[0006] In an exemplary embodiment of the present invention, the guide portion is provided with a guide groove; the high-voltage connector further includes a shock-absorbing structure, which is located between the high-voltage harness and the groove wall of the guide groove.

[0007] In an exemplary embodiment of this utility model, the shock-absorbing structure is an "arc structure", and the length of the shock-absorbing structure is 1 / 4 of a circular ring.

[0008] In an exemplary embodiment of the present invention, the shock-absorbing structure includes a plurality of shock-absorbing components, which are spaced apart from each other and are located between the high-voltage wire harness and the groove wall of the guide groove.

[0009] In an exemplary embodiment of the present invention, the shock-absorbing structure includes a first connecting segment, an intermediate connecting segment, and a second connecting segment, wherein the intermediate connecting segment is connected between the first connecting segment and the second connecting segment; the outer diameter of the intermediate connecting segment is larger than the outer diameter of the first connecting segment, and the outer diameter of the intermediate connecting segment is larger than the outer diameter of the second connecting segment.

[0010] In an exemplary embodiment of the present invention, the inner diameter of the intermediate connecting segment is smaller than the inner diameter of the first connecting segment, and the inner diameter of the intermediate connecting segment is smaller than the inner diameter of the second connecting segment.

[0011] In an exemplary embodiment of the present invention, the guide portion includes a first guide portion and a second guide portion, the first guide portion and the second guide portion being disposed opposite to each other and detachably connected.

[0012] In an exemplary embodiment of the present invention, the connecting portion is provided with a positioning member, which protrudes from the connecting portion; the guide portion is provided with a positioning hole, the positioning member is located in the positioning hole and is connected to the hole wall of the positioning hole.

[0013] In an exemplary embodiment of the present invention, the high-voltage connector further includes a terminal located outside the housing and connected to the high-voltage wiring harness; the high-voltage connector further includes a heat-shrink tubing sleeved between the terminal and the high-voltage wiring harness.

[0014] The second aspect of this utility model discloses a vehicle, including an electric motor and the high-voltage connector, wherein the high-voltage connector is connected to the electric motor.

[0015] The present invention has the following beneficial effects: In this embodiment of the invention, when the high-voltage connector is connected to the motor and the high-voltage harness needs to be bent, the guide part is an "arc-shaped structure". Therefore, the guide part can match the bent high-voltage harness and provide protection for the bent high-voltage harness, which helps to reduce the probability of high-voltage harness breakage.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. The drawings herein are for illustrating the inventive concept of the present invention and are not entirely equivalent to the structure of the actual product protected by the present invention.

[0018] Figure 1 A three-dimensional structural diagram of the connection between the high-voltage connector and the motor in an embodiment of this utility model is shown.

[0019] Figure 2 A three-dimensional structural schematic diagram of the high-voltage connector in an embodiment of this utility model is shown.

[0020] Figure 3 The diagram shows a three-dimensional structural schematic of a high-voltage connector without a first guide portion in one view according to an embodiment of the present invention.

[0021] Figure 4 This diagram shows a three-dimensional structural schematic of a high-voltage connector without a first guide portion in an embodiment of the present invention, viewed from another perspective.

[0022] Figure 5 A three-dimensional structural schematic diagram of the shock-absorbing structure in an embodiment of this utility model is shown.

[0023] Figure 6 A three-dimensional structural diagram of a high-voltage connector without a first guide portion in another embodiment of the present invention is shown from one perspective.

[0024] Figure 7 A three-dimensional structural diagram of a high-voltage connector without a first guide portion in another embodiment of the present invention is shown from another perspective.

[0025] Figure 8 A three-dimensional structural schematic diagram of the shock-absorbing structure in another embodiment of the present invention is shown.

[0026] Explanation of reference numerals in the attached figures: 1. Housing; 101. Guide groove; 102. First positioning hole; 11. Connecting part; 12. Guide part; 121. First guide part; 122. Second guide part; 2. Motor; 3. High voltage wiring harness; 4. Vibration damping structure; 41. Vibration damping component; 411. First connecting section; 412. Intermediate connecting section; 413. Second connecting section; 5. Terminal; 6. Heat shrink tubing; a. Positioning component. Detailed Implementation

[0027] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0028] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., may be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 5 As shown, this embodiment provides a high-voltage connector, including: a housing 1 and a high-voltage wire harness 3. The housing 1 includes a connecting part 11 and a guiding part 12. The connecting part 11 is connected to the guiding part 12 and is used to connect to a motor 2. The high-voltage wire harness 3 passes through the connecting part 11 and the guiding part 12. The guiding part 12 has an "arc-shaped structure".

[0031] In this embodiment, the connecting part 11 is provided with two mounting holes. Two bolts are passed through the two mounting holes respectively to insulate and connect with the motor 2, so as to realize the connection between the high voltage connector and the motor 2.

[0032] In this embodiment, when the high-voltage connector is connected to the motor 2 and the high-voltage harness 3 needs to be bent, since the guide part 12 is an "arc structure", the guide part 12 can match the bent high-voltage harness 3 and provide protection for the bent high-voltage harness 3, which helps to reduce the probability of the high-voltage harness 3 breaking.

[0033] In this embodiment, the high-voltage wiring harness 3 is made of aluminum wire. Aluminum wire has a lower cost and lighter weight, which helps to reduce the cost and weight of the whole vehicle.

[0034] In other embodiments, the high-voltage wiring harness 3 can also be made of copper wire, which has a high vibration resistance and fatigue strength and is not easily broken by the vibration of the motor 2.

[0035] Combination Figure 2 and Figure 3 As shown, the guide section 12 is provided with a guide groove 101; the high-voltage connector also includes a shock-absorbing structure 4, which is located between the high-voltage wire harness 3 and the groove wall of the guide groove 101.

[0036] In this embodiment, the shock-absorbing structure 4 is disposed between the high-voltage wire harness 3 and the groove wall of the guide groove 101. The shock-absorbing structure 4 can effectively absorb the vibration energy generated by the motor 2, thereby reducing the risk of damage or breakage of the high-voltage wire harness 3 under high-frequency vibration environment.

[0037] In this embodiment, the shock-absorbing structure 4 can be made of silicone rubber or EPDM rubber. Silicone rubber and EPDM rubber provide sufficient cushioning force, enabling the shock-absorbing structure 4 to effectively absorb vibration energy and reduce the impact on the high-voltage wiring harness 3. Silicone rubber and EPDM rubber possess high-temperature resistance, low-temperature resistance, and wear resistance, allowing the shock-absorbing structure 4 to adapt to various extreme temperature environments, ensuring that its shock-absorbing performance remains stable over a long period; furthermore, they reduce material loss due to friction, extending the service life of the shock-absorbing structure 4. Silicone rubber and EPDM rubber have strong resistance to deformation, allowing the shock-absorbing structure 4 to maintain its shape even under prolonged compression, preventing a decrease in its shock-absorbing performance due to deformation.

[0038] In this embodiment, the guide part 12 is provided with two guide grooves 101, and the high voltage connector includes two high voltage wire harnesses 3 and two shock-absorbing structures 4. The two shock-absorbing structures 4 are located one-to-one between the two high voltage wire harnesses 3 and the groove walls of the two guide grooves 101.

[0039] Preferably, the number of guide grooves 101 is the same as the number of high-voltage wire harnesses 3, and the number of damping structures 4 is the same as the number of high-voltage wire harnesses 3. The number of guide grooves 101 and the number of damping structures 4 depend on the number of high-voltage wire harnesses 3.

[0040] In other embodiments, combined with Figure 7 As shown, the damping structure 4 is an "arc structure", and the length of the damping structure 4 is 1 / 4 of a circle.

[0041] It should be understood that since the damping structure 4 is an "arc structure", the length of the damping structure 4 is the arc length of the damping structure 4.

[0042] In other embodiments, the guide portion 12 is also an "arc structure," and its length is 1 / 4 of a circle to match the bent high-voltage wire harness 3. Both the shock-absorbing structure 4 and the guide portion 12 are "arc structures," and their lengths are both 1 / 4 of a circle. This ensures that a shock-absorbing structure 4 is provided between the guide portion 12 and the high-voltage wire harness 3. The shock-absorbing structure 4 can effectively absorb the vibration energy generated by the motor 2, preventing the high-voltage wire harness 3 from wearing or breaking due to direct contact with the guide portion 12 under high-frequency vibration.

[0043] In other embodiments, the guide portion 12 is an "arc structure" and its length is 1 / 6 of a circle. The damping structure 4 is an "arc structure" and its length is 1 / 6 of a circle.

[0044] It should be understood that the length of the guide section 12 and the length of the shock-absorbing structure 4 can be selected according to the space between the motor 2 and the vehicle body.

[0045] In this embodiment, combined with Figures 3 to 5 As shown, the damping structure 4 includes multiple damping components 41, which are spaced apart from each other and are located between the high-voltage wire harness 3 and the groove wall of the guide groove 101.

[0046] It should be understood that "multiple" refers to two or more quantities, such as two, three, etc.

[0047] In this embodiment, three spaced-apart damping elements 41 are provided between the high-voltage wiring harness 3 and the groove wall of the guide groove 101, so that the three damping elements 41 do not transmit vibrations to each other, thereby absorbing vibration energy more effectively. In addition, the spaced-apart arrangement of the three damping elements 41 not only helps to reduce the weight and cost of the damping structure 4, but also facilitates the installation of the high-voltage wiring harness 3.

[0048] It should be understood that the number of shock absorbers 41 can be selected according to the length of the guide section 12.

[0049] Combination Figure 5 As shown, each shock absorber 41 includes a first connecting section 411, an intermediate connecting section 412, and a second connecting section 413. The intermediate connecting section 412 is connected between the first connecting section 411 and the second connecting section 413. The outer diameter of the intermediate connecting section 412 is larger than the outer diameter of the first connecting section 411, and the outer diameter of the intermediate connecting section 412 is larger than the outer diameter of the second connecting section 413.

[0050] In this embodiment, the outer diameter of the intermediate connecting section 412 is larger than the inner diameter of the guide groove 101, that is, the intermediate connecting section 412 and the groove wall of the guide groove 101 are interference fit.

[0051] In this embodiment, the outer diameter of the first connecting segment 411 is the same as the outer diameter of the second connecting segment 413. Since the outer diameter of the intermediate connecting segment 412 is larger than the outer diameter of the first connecting segment 411 and the outer diameter of the intermediate connecting segment 412 is larger than the outer diameter of the second connecting segment 413, and the intermediate connecting segment 412 is in an interference fit with the groove wall of the guide groove 101, the intermediate connecting segment 412 can prevent the shock absorber 41 from moving relative to the guide portion 12 and prevent the shock absorber 41 from detaching from the guide groove 101.

[0052] Combination Figure 5As shown, the inner diameter of the intermediate connecting section 412 is smaller than the inner diameter of the first connecting section 411, and the inner diameter of the intermediate connecting section 412 is smaller than the inner diameter of the second connecting section 413.

[0053] In this embodiment, the inner diameter of the first connecting segment 411 is the same as the inner diameter of the second connecting segment 413 to facilitate the installation of the high-voltage wire harness 3. Since the inner diameter of the intermediate connecting segment 412 is smaller than the inner diameter of the first connecting segment 411 and smaller than the inner diameter of the second connecting segment 413, the intermediate connecting segment 412 can confine the high-voltage wire harness 3 within the intermediate connecting segment 412, further improving the buffering capacity of the shock absorber 41, thereby significantly reducing the possibility of breakage of the high-voltage wire harness 3.

[0054] In addition, the intermediate connecting section 412 has a certain degree of flexibility, which allows it to adapt to high-voltage wire harnesses 3 of different specifications within a certain range, thereby improving the versatility and applicability of the high-voltage connector.

[0055] It should be understood that both silicone rubber and EPDM rubber have a certain degree of elasticity.

[0056] In other embodiments, combined with Figure 8 As shown, the damping structure 4 includes three damping components 41, which are connected in sequence and are located between the high-voltage wire harness 3 and the groove wall of the guide groove 101; wherein, the first connecting section 411 of one of the two adjacent damping components 41 is connected to the second connecting section 413 of the other damping component 41.

[0057] Combination Figures 2 to 4 As shown, the guide portion 12 includes a first guide portion 121 and a second guide portion 122. The first guide portion 121 and the second guide portion 122 are disposed opposite to each other and are detachably connected. The guide groove 101 is located between the first guide portion 121 and the second guide portion 122.

[0058] In this embodiment, the first guide portion 121 and the second guide portion 122 are detachably connected by bolts, so as to facilitate the disassembly and installation of the first guide portion 121 and the second guide portion 122, thereby facilitating the replacement of the shock-absorbing structure 4.

[0059] Combination Figure 2 and Figure 3 As shown, the connecting part 11 is provided with a positioning member a, which protrudes from the connecting part 11; the guide part 12 is provided with a positioning hole, the positioning member a is located in the positioning hole and is connected to the hole wall of the positioning hole.

[0060] In this embodiment, the connecting part 11 is provided with four positioning members a, the first guide part 121 is provided with two mutually spaced first positioning holes 102, and the second guide part 122 is provided with two mutually spaced second positioning holes. The two first positioning holes 102 and the two second positioning holes are arranged in a one-to-one correspondence. The two positioning members a are arranged in the two first positioning holes 102 to determine the connection position between the first guide part 121 and the connecting part 11. The other two positioning members a are arranged in the two second positioning holes to determine the connection position between the second guide part 122 and the connecting part 11.

[0061] In this embodiment, when the connecting part 11 is connected to the guide part 12, the first guide part 121 and the connecting part 11 are first connected by the cooperation of the first positioning hole 102 and the positioning member a, and the second guide part 122 and the connecting part 11 are connected by the cooperation of the second positioning hole and the positioning member a. Then, the first guide part 121 and the second guide part 122 are connected by bolts, and finally the connection between the connecting part 11 and the guide part 12 is realized.

[0062] Combination Figure 1 and Figure 2 As shown, the high-voltage connector also includes a terminal 5, which is located outside the housing 1 and is connected to the high-voltage wiring harness 3.

[0063] In this embodiment, the high-voltage harness 3 is connected to the terminal 5, and the terminal 5 is electrically connected to the motor 2. Energy transfer between the motor 2 and the high-voltage harness 3 can be achieved through the terminal 5.

[0064] Combination Figure 2 As shown, the high-voltage connector also includes a heat-shrink tubing 6, which is sleeved between the terminal 5 and the high-voltage wire harness 3.

[0065] In this embodiment, heat shrink tubing 6 is sleeved at the connection position between terminal 5 and high-voltage wire harness 3. Heat shrink tubing 6 can provide protection for the connection position between terminal 5 and high-voltage wire harness 3, and prevent short circuit caused by broken wires in high-voltage wire harness 3.

[0066] This embodiment also provides a vehicle, including a motor 2 and the aforementioned high-voltage connector, wherein the high-voltage connector is connected to the motor 2.

[0067] For other aspects of the vehicle's structure, please refer to existing technology; details will not be elaborated here.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly" and "connection" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] 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 one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.

[0070] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0071] Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention. Therefore, all changes or modifications made in accordance with the claims and description of the present invention should fall within the scope of the patent coverage of the present invention.

Claims

1. A high-voltage connector, characterized in that, include: The housing includes a connecting portion and a guide portion, the connecting portion being connected to the guide portion and used for connecting to a motor; the guide portion is provided with a guide groove; A high-voltage wiring harness, wherein the high-voltage wiring harness is inserted into the connecting portion and the guiding portion; wherein... The guide section has an "arc-shaped structure"; A shock-absorbing structure is located between the high-voltage wiring harness and the wall of the guide groove.

2. The high-voltage connector according to claim 1, characterized in that, The shock-absorbing structure is an "arc structure", and the length of the shock-absorbing structure is 1 / 4 of a circle.

3. The high-voltage connector according to claim 1, characterized in that, The shock absorption structure includes multiple shock absorbers, which are spaced apart from each other and are located between the high-voltage wiring harness and the wall of the guide groove.

4. The high-voltage connector according to claim 1, characterized in that, The shock-absorbing structure includes a first connecting section, an intermediate connecting section, and a second connecting section, wherein the intermediate connecting section connects the first connecting section and the second connecting section; The outer diameter of the intermediate connecting segment is greater than the outer diameter of the first connecting segment, and the outer diameter of the intermediate connecting segment is greater than the outer diameter of the second connecting segment.

5. The high-voltage connector according to claim 4, characterized in that, The inner diameter of the intermediate connecting segment is smaller than the inner diameter of the first connecting segment, and the inner diameter of the intermediate connecting segment is smaller than the inner diameter of the second connecting segment.

6. The high-voltage connector according to claim 1, characterized in that, The guide portion includes a first guide portion and a second guide portion, the first guide portion and the second guide portion are disposed opposite to each other, and the first guide portion and the second guide portion are detachably connected.

7. The high-voltage connector according to claim 1, characterized in that, The connecting part is provided with a positioning element, which protrudes relative to the connecting part. The guide portion is provided with a positioning hole, and the positioning element is located inside the positioning hole and connected to the hole wall of the positioning hole.

8. The high-voltage connector according to claim 1, characterized in that, The high-voltage connector further includes terminals located outside the housing and connected to the high-voltage wiring harness; The high-voltage connector also includes a heat-shrink tubing, which is sleeved between the terminal and the high-voltage wire harness.

9. A vehicle, characterized in that, It includes a motor and a high-voltage connector as described in any one of claims 1-8, wherein the high-voltage connector is connected to the motor.