A new energy automobile electromagnetic heater high-voltage connecting terminal

By designing a high-voltage connection terminal for the electromagnetic heater of new energy vehicles, an integrated terminal fin structure is adopted, which is directly connected to the wiring harness and welded to the back-end circuit. This solves the problems of complex connection and sealing structure in the existing technology, and improves stability and reliability.

CN224537393UActive Publication Date: 2026-07-21SUZHOU LINGDONG AUTOMOTIVE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU LINGDONG AUTOMOTIVE ELECTRONICS CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, the connection method of electromagnetic heaters for new energy vehicles is complex, which increases the difficulty of assembly and the risk of failure. In addition, the complex sealing structure design increases the cost and potential failure points.

Method used

A high-voltage connection terminal for an electromagnetic heater in a new energy vehicle is designed. It adopts an integrated terminal fin structure, which directly connects to the wire harness through the terminal fins and forms a rigid connection with the back-end circuit through welding, eliminating the need for traditional connectors and sealing structures.

Benefits of technology

It simplifies the connection method, reduces the risk of failure, reduces material costs, improves production efficiency and product reliability, and ensures the stability and sealing of circuit conduction.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a new energy automobile electromagnetic heater high pressure connecting terminal, including electromagnetic heater, the side of electromagnetic heater is connected with high pressure charging component, and the side that high pressure charging component is away from electromagnetic heater is equipped with electromagnetic heater high pressure connecting assembly, and electromagnetic heater high pressure connecting assembly is connected with high pressure charging component, and high pressure charging component includes wiring base, and wiring base is connected with electromagnetic heater side, is equipped with the clamping groove cavity on the wiring base, and the side surface of wiring base is provided with a plurality of groups of litz wire, and the other end side wall of litz wire is equipped with terminal assembly, and terminal assembly adopts detachable connection with litz wire, and terminal assembly is inserted into the clamping groove cavity, and through welding, the fixed mounting of terminal interface and terminal fin is carried out, replaces the cooperation of original male terminal and female terminal, reduces material cost, and welding enhances the electric performance of product.
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Description

Technical Field

[0001] This utility model relates to the field of electromagnetic heaters, and in particular to a high-voltage connection terminal for an electromagnetic heater in a new energy vehicle. Background Technology

[0002] In current mainstream circuit connection technologies, most solutions rely on a "connector + terminal" conversion mode to achieve circuit conduction. Specifically, terminals must first be assembled at both ends of the connector, and then the connection with the back-end circuit is completed through the terminals. At the same time, in order to ensure product performance, an additional sealing structure between the connector and the structural components must be designed. This not only increases the complexity of the assembly process, but also increases the potential risk of failure. Therefore, in order to solve the above problems, how to design a high-voltage connection terminal for electromagnetic heaters in new energy vehicles is a technical problem that the industry urgently needs to solve. Utility Model Content

[0003] The purpose of this utility model is to provide a high-voltage connection terminal for electromagnetic heaters in new energy vehicles, so as to solve the problem of optimizing the connection method mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A high-voltage connection terminal for an electromagnetic heater in a new energy vehicle includes an electromagnetic heater, a high-voltage charging component connected to the surface of the electromagnetic heater, and a high-voltage connection assembly for the electromagnetic heater on the side of the high-voltage charging component away from the electromagnetic heater, the high-voltage connection assembly for the electromagnetic heater being connected to the high-voltage charging component.

[0005] Preferably, the high-voltage charging assembly includes a wiring base connected to the surface of the electromagnetic heater. The wiring base has a slot cavity, and a plurality of Litz wires are arranged on the inner side of the wiring base. A terminal assembly is provided on the side wall of the other end of the Litz wires. The terminal assembly is detachably connected to the Litz wires, and the terminal assembly is snapped into the slot cavity.

[0006] Preferably, the terminal assembly includes a pressure clamp, and a copper wire clamp is provided on the side of the pressure clamp. The pressure clamp and the copper wire clamp cooperate to clamp the Litz wire. A terminal fin is provided on the side of the copper wire clamp away from the pressure clamp. A slot is provided on the side of the terminal fin near the pressure clamp. An anti-reverse spring is provided on the inner wall of the slot. The anti-reverse spring cooperates with the copper wire clamp and is inserted into the slot cavity.

[0007] Preferably, the electromagnetic heater high-voltage connection assembly includes a housing, a PCBA board is provided inside the housing, a plurality of terminal interfaces are provided on the upper part of the PCBA board, a guide cover is provided between the housing and the PCBA board, the guide cover is fixedly connected to the upper part of the housing, and the position of the guide cover corresponds to the terminal interfaces, a housing groove is provided on the upper part of the housing, the housing groove corresponds to the guide cover, and the terminal fins pass through the housing groove, the guide cover and the terminal interfaces in sequence, and are connected to the terminal interfaces.

[0008] The beneficial effects of this utility model are: 1. By fastening the pressure clamp and the copper wire clamp, the side wall of the Litz wire is clamped and fixed, thereby achieving clamping and fixing of Litz wires of different diameters, thus ensuring applicability.

[0009] 2. By inserting the terminal fins into the slot cavity, the anti-reverse spring is subjected to the pressure of the inner wall of the slot cavity, thereby keeping the anti-reverse spring and the terminal fins horizontal. When it reaches the designated position, the anti-reverse spring returns to its original position under the influence of its own elasticity. At this time, the anti-reverse spring cooperates with the copper wire clamp to achieve the snap-fit ​​fixation of the slot cavity, thereby ensuring quick installation and fixation.

[0010] 3. By welding, the terminal interface and terminal fins are fixedly installed, replacing the original male and female terminal fit, reducing material costs, and welding enhances the electrical performance of the product.

[0011] 4. By setting a housing groove, fill the housing groove with glue to ensure structural sealing. The glue should overflow the cross-section to form a sealed end face. The glue plays a role in fixing and sealing, and replaces the original sealing ring, reducing costs and enhancing the product's sealing performance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a cross-sectional perspective view of an embodiment of the present utility model. Figure 3 As an embodiment of this utility model Figure 2 A cross-sectional schematic diagram; Figure 4 This is a schematic diagram of the structure of this practical high-voltage charging component; Figure 5 This is a schematic diagram of the structure of this practical high-voltage charging component.

[0013] In the diagram: 1. Electromagnetic heater; 2. High-voltage charging assembly; 21. Wiring base; 211. Slot cavity; 22. Litz wire; 3. Terminal assembly; 31. Pressure clamp; 32. Copper wire clamp; 33. Terminal fin; 34. Anti-reverse spring; 35. Slot; 4. Electromagnetic heater high-voltage connection assembly; 41. Slot; 411. Housing slot; 42. PCBA board; 43. Terminal interface; 44. Guide cover. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] See Figures 1-5 This utility model provides a high-voltage connection terminal for an electromagnetic heater in a new energy vehicle, including an electromagnetic heater 1. The feature is that a high-voltage charging component 2 is connected to the surface of the electromagnetic heater 1, and an electromagnetic heater high-voltage connection assembly 4 is provided on the side of the high-voltage charging component 2 away from the electromagnetic heater 1. The electromagnetic heater high-voltage connection assembly 4 is connected to the high-voltage charging component 2. The electromagnetic heater 1 is installed by mating the high-voltage charging component 2 with the electromagnetic heater high-voltage connection assembly 4.

[0016] See Figure 2 Specifically, the high-voltage charging assembly 2 includes a wiring base 21, which is connected to the surface of the electromagnetic heater 1. The wiring base 21 has a slot cavity 211, and a plurality of Litz wires 22 are arranged on the inner side of the wiring base 21. A terminal assembly 3 is provided on the side wall of the other end of the Litz wires 22. The terminal assembly 3 is detachably connected to the Litz wires 22, and the terminal assembly 3 is snapped into the slot cavity 211. When the terminal assembly 3 is inserted into the slot cavity 211, it is snapped into the slot cavity 211.

[0017] See Figures 3-5Specifically, the terminal assembly 3 includes a pressure clamp 31, and a copper wire clamp 32 is provided on the side of the pressure clamp 31. The pressure clamp 31 and the copper wire clamp 32 cooperate to clamp the Litz wire 22. A terminal fin 33 is provided on the side of the copper wire clamp 32 away from the pressure clamp 31. A slot 35 is provided on the side of the terminal fin 33 near the pressure clamp 31. A retaining spring 34 is provided on the inner wall of the slot 35. The retaining spring 34 cooperates with the copper wire clamp 32 and is inserted into the slot cavity 211. By fastening the pressure clamp 31 and the copper wire clamp 32, the side wall of the Litz wire 22 is clamped and fixed. Then, the terminal fin 33 is inserted into the slot cavity 211. At this time, the anti-reverse spring 34 is subjected to the pressure of the inner wall of the slot cavity 211, so that the anti-reverse spring 34 and the terminal fin 33 remain horizontal. When it reaches the designated position, the anti-reverse spring 34 returns to its original position under the influence of its own elasticity. At this time, the anti-reverse spring 34 and the copper wire clamp 32 cooperate to insert into the slot cavity 211 for fixation.

[0018] Specifically, the electromagnetic heater high-voltage connection assembly 4 includes a housing 41, within which a PCBA board 42 is housed. The PCBA board 42 has several sets of terminal interfaces 43 on its upper part. A guide cover 44 is provided between the housing 41 and the PCBA board 42, and the guide cover 44 is fixedly connected to the upper part of the housing 41, with its position corresponding to the terminal interfaces 43. A housing groove 411 is provided on the upper part of the housing 41, corresponding to the guide cover 44. The terminal fins 33 sequentially pass through the housing groove 411, the guide cover 44, and the terminal interfaces 43, and are connected to the terminal interfaces 43. After the terminal fins 33 sequentially pass through the housing groove 411, the guide cover 44, and the terminal interfaces 43, and are connected to the terminal interfaces 43, the terminal interfaces 43 and the terminal fins 33 are fixedly installed by welding.

[0019] Working principle of this utility model: During installation, the side wall of the Litz wire 22 is clamped and fixed by fastening the pressure clamp 31 and the copper wire clamp 32. Then, the terminal fin 33 is inserted into the slot cavity 211. At this time, the anti-reverse spring 34 is subjected to the pressure of the inner wall of the slot cavity 211, so that the anti-reverse spring 34 and the terminal fin 33 remain horizontal. When it reaches the designated position, the anti-reverse spring 34 returns to its original position under the influence of its own elasticity. At this time, the anti-reverse spring 34 and the copper wire clamp 32 cooperate to achieve the snap-fit ​​fixation of the slot cavity 211.

[0020] Then, the terminal fins 33 in the high-voltage charging assembly 2 are inserted into the housing groove 411, the guide cover plate 44 and the terminal interface 43. At this time, the terminal interface 43 and the terminal fins 33 are fixedly installed by welding. Then, the housing groove 411 is filled with glue to ensure the structural sealing. The glue should overflow the cross-section to form a sealed end face. The glue plays a role in fixing and sealing.

[0021] This solution simplifies and upgrades the connection method through technological innovation: it directly eliminates the connector component in traditional solutions, adopting an integrated terminal fin structure as the core connection component. One end of this terminal fin is directly and stably connected to the wire harness, while the other end is rigidly connected to the downstream circuit through a welding process. This design brings several significant advantages: the welding connection method ensures the stability and reliability of circuit conduction, fundamentally reducing the potential for failures caused by loose connectors or poor contact; eliminating the connector and sealing structure not only reduces material procurement costs but also simplifies the assembly process, indirectly improving production efficiency; at the same time, reducing the number of parts also means a substantial improvement in the overall reliability of the product, providing a more solid technical guarantee for the long-term stable operation of the equipment.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage connection terminal for an electromagnetic heater in a new energy vehicle, comprising an electromagnetic heater (1), characterized in that: The surface of the electromagnetic heater (1) is connected to a high-voltage charging component (2). The side of the high-voltage charging component (2) away from the electromagnetic heater (1) is provided with an electromagnetic heater high-voltage connection assembly (4). The electromagnetic heater high-voltage connection assembly (4) is connected to the high-voltage charging component (2).

2. The high-voltage connection terminal for an electromagnetic heater in a new energy vehicle according to claim 1, characterized in that: The high-voltage charging assembly (2) includes a wiring base (21), which is connected to the surface of the electromagnetic heater (1). The wiring base (21) is provided with a slot cavity (211). Several sets of Litz wires (22) are arranged on the inner side of the wiring base (21). A terminal assembly (3) is provided on the other side wall of the Litz wire (22). The terminal assembly (3) is detachably connected to the Litz wire (22), and the terminal assembly (3) is inserted into the slot cavity (211).

3. The high-voltage connection terminal for an electromagnetic heater in a new energy vehicle according to claim 2, characterized in that: The terminal assembly (3) includes a pressure clamp (31), and a copper wire clamp (32) is provided on the side of the pressure clamp (31). The pressure clamp (31) and the copper wire clamp (32) cooperate to clamp the Litz wire (22).

4. The high-voltage connection terminal for an electromagnetic heater in a new energy vehicle according to claim 3, characterized in that: The copper wire clamp (32) has a terminal fin (33) on the side away from the pressure clamp (31). The terminal fin (33) has a slot (35) on the side close to the pressure clamp (31). The inner wall of the slot (35) has a retaining spring (34). The retaining spring (34) is inserted into the slot cavity (211) in cooperation with the copper wire clamp (32).

5. The high-voltage connection terminal for an electromagnetic heater in a new energy vehicle according to claim 4, characterized in that: The electromagnetic heater high-voltage connection assembly (4) includes a housing (41), a PCBA board (42) is provided inside the housing (41), a number of terminal interfaces (43) are provided on the upper part of the PCBA board (42), a guide cover (44) is provided between the housing (41) and the PCBA board (42), the guide cover (44) is fixedly connected to the upper part of the housing (41), and the position of the guide cover (44) corresponds to the terminal interface (43). A housing groove (411) is provided on the upper part of the housing (41), the housing groove (411) corresponds to the guide cover (44), and the terminal fin (33) passes through the housing groove (411), the guide cover (44) and the terminal interface (43) in sequence, and is connected to the terminal interface (43).