Connector with novel PE current-carrying path structure
The design of the integrated PE current-carrying component simplifies the connector structure, solves the problems of complex PE grounding structure and cumbersome assembly, and achieves cost reduction, improved reliability and enhanced product versatility.
Patent Information
- Application Number
- CN202520010155.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing connectors have complex PE grounding structures, numerous parts, cumbersome assembly processes, high costs, and significant reliability risks. They are also prone to loosening and poor contact under factors such as vibration and thermal expansion and contraction.
An integrated PE current-carrying assembly is adopted, including a conductive integrated shell, elastic conductors and PE pins. A tight connection is achieved through the interference fit of the elastic conductors, eliminating the need for an insulating plate and copper alloy sockets, thus simplifying the structure.
It simplifies the number of parts, reduces production and labor costs, improves connection reliability and stability, enhances product versatility, and facilitates maintenance and troubleshooting.
Smart Images
Figure CN223771392U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, and in particular to a connector with a novel PE flow path structure. Background Technology
[0002] With the rapid development of the new energy industry, connectors are widely used in the efficient transmission and charging / discharging of electrical energy. Connectors require a reliable PE grounding function. Currently, the problems with the PE grounding structure of connectors are twofold: First, the grounding structure is complex and contains a large number of parts. The current PE grounding structure uses multiple components such as insulating plates, copper alloy sockets, copper alloy sleeves, and springs to achieve the connection and grounding function of the PE terminal, resulting in a complex overall structure for the battery swapping connector. Second, the assembly of this grounding structure is complex. During assembly, each component needs to be installed sequentially, ensuring the accurate placement of each component. The large number of parts makes the assembly process for the battery swapping connector cumbersome. First, the assembly process is complex and difficult, resulting in low assembly efficiency. Second, production costs are high. The large number of parts directly increases the cost of raw materials, such as insulation board materials and copper alloy materials. Third, the complex assembly process requires more manpower and higher assembly technology requirements, which also increases labor and equipment costs, thus raising the overall production cost. Fourth, reliability risks increase. With the increase in the number of parts and connection points, during long-term use or frequent battery replacement, the connections between parts are prone to loosening and poor contact due to factors such as vibration during vehicle operation and thermal expansion and contraction, resulting in increased reliability risks. Utility Model Content
[0003] To address one or more of the above problems, this utility model provides a connector with a novel PE flow path structure.
[0004] According to one aspect of the present invention, the connector having a novel PE current-carrying circuit structure includes: a PE current-carrying component and a vehicle-end socket module and a battery-end plug module that are mutually inserted into each other.
[0005] PE current-carrying components include a conductive integrated housing, flexible conductive elements, and PE pins.
[0006] The integrated shell is installed inside the socket module. The front end of the integrated shell is provided with an axial PE insertion hole, and the front end of the inner wall of the PE insertion hole is provided with a mounting groove.
[0007] The flexible conductor is interference-fitted and fitted into the mounting groove;
[0008] The PE pin is fixedly installed inside the plug module. When the plug module is plugged into the socket module, the PE pin sleeve connects to the PE socket and is tightly wrapped by the elastic conductor with an interference fit. The PE pin, the elastic conductor and the integrated shell are connected in sequence to form the PE flow path structure.
[0009] In some embodiments, an axial connecting tube is integrally connected to the middle of the vertical shell body of the integrated shell, and a PE insertion hole with a blind hole structure is formed at the center of the connecting tube.
[0010] In some implementations, the front end of the PE socket is dematerialized to form an annular mounting groove, and the elastic guide is a drum spring or crown spring that is interference-fitted into the mounting groove.
[0011] In some embodiments, the front end of the cylindrical needle body of the PE pin is fitted with a PE insertion hole of equal diameter and is elastically interference-fitted by an elastic guide, and its rear end is fitted with the first through hole of the plug housing.
[0012] In some embodiments, the needle body has a spherical guide end at the front end, and the PE insertion hole has a rounded chamfer at the front end.
[0013] In some embodiments, the rear tube of the plug housing is inserted into the rectangular tube at the front end of the housing body;
[0014] Power jacks are symmetrically installed on both sides of the casing, and signal jacks are installed at the top.
[0015] In some embodiments, a large-diameter end post is integrally formed at the rear end of the needle body, and the end post is fitted into a cylindrical groove connected to the first through hole.
[0016] The plug housing is connected to the mounting plate via thread, and the end post is connected to the mounting plate via a bushing with a fixing hole.
[0017] In some embodiments, a square anti-rotation platform is formed at the rear end of the end post, and the fixing hole is a square anti-rotation hole, in which the square anti-rotation platform is inserted.
[0018] In some embodiments, a sealing ring is provided between the end post and the fixing hole and the first through hole; the outer wall of the end post is provided with an end insertion hole with a central blind hole structure.
[0019] In some implementations, the integrated housing is fixed inside the socket housing of the socket module, and both the integrated housing and the socket housing are made of conductive metal.
[0020] The plug housing and rear mounting plate are made of high-polymer insulating plastic.
[0021] The advantages of this connector with a novel PE current-carrying path structure are as follows: First, it simplifies the structure. By designing the integrated shell and PE end as a single unit, the insulation board, copper alloy sleeve, and copper alloy socket are eliminated, significantly reducing the number of parts. Second, it reduces costs. The procurement, inventory management, and assembly processes of the original multiple independent components are simplified, reducing labor, material, and management costs in the production process. Third, it improves connection reliability. The elastic conductor is directly installed in the mounting slot, making the connection between the pin and the elastic conductor more direct and tight. Compared to the complex connection method with multiple transitions in the original structure, it reduces the number of connection interfaces and potential hazards. At the point of poor contact, the simplified connection structure effectively reduces resistance, improves the stability and reliability of the electrical connection, and ensures stable current transmission during battery swapping. Fourth, it enhances product versatility. Due to the adoption of a unified integrated PE pin and elastic conductor adapter principle, rapid adaptation can be achieved, which greatly improves product versatility, shortens the R&D cycle of new products, and facilitates unified management and maintenance of the same series of products by enterprises. Fifth, it facilitates maintenance and troubleshooting: After the simplification of the structure, the internal layout of the battery swapping connector is clearer. When a fault occurs, maintenance personnel can locate the problem more quickly, reducing maintenance time and costs. Attached Figure Description
[0022] Figure 1 This is a three-dimensional schematic diagram of a connector with a novel PE flow-carrying path structure according to one embodiment of the present invention.
[0023] Figure 2 for Figure 1 The diagram shows a cross-sectional view of a connector with a novel PE flow path structure.
[0024] Figure 3 for Figure 2 A three-dimensional exploded view of the PE current-carrying component shown.
[0025] Figure 4 for Figure 3 The diagram shows a front view of the PE current-carrying component.
[0026] PE current-carrying component 01, integrated shell 1, lead tube 10, PE socket 101, mounting groove 102, rounded chamfer 103, shell body 11, rectangular tube 12, elastic lead 2, PE pin 3, pin body 30, guide end 31, end post 32, four-sided anti-rotation platform 33, end socket 34, sealing ring 4.
[0027] Socket module 02, power socket 020, socket housing 021, signal socket 022;
[0028] Plug module 03, plug housing 030, first through hole 0301, cylindrical groove 0302, rear mounting plate 031, fixing hole 0310, power pin 032, rear tube 033;
[0029] Wire 04. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.
[0031] Figures 1 to 4 A connector with a novel PE current-carrying circuit structure according to one embodiment of the present invention is schematically shown. As shown, the connector with the novel PE current-carrying circuit structure includes: a PE current-carrying component 01 and a vehicle-side socket module 02 and a battery-side plug module 03 that are interlocked with each other;
[0032] The PE current-carrying assembly 01 includes a conductive integrated shell 1, an elastic conductive element 2, and a PE pin 3.
[0033] The integrated shell 1 is installed inside the socket module 02. Preferably, the integrated shell 1 is floatingly connected to the socket housing 021 of the socket module 02, and both the integrated shell 1 and the socket housing 021 are made of conductive metal.
[0034] The integrated housing 1 has an axial PE insertion hole 101 at its front end, and an installation groove 102 is provided on the front end of the inner wall of the PE insertion hole 101. Preferably, the integrated housing 1 has an axial guide tube 10 in the middle, and a blind hole PE insertion hole 101 is formed in the center of the guide tube 10. Preferably, the front end of the PE insertion hole 101 of the guide tube 10 is dematerialized to form an annular installation groove 102. The beneficial effect is that the installation groove 102 has better installation and positioning performance, ensuring the bushing and conduction function of the elastic guide 2.
[0035] The elastic conductor 2 is interference-fitted and fitted inside the mounting groove 102. The elastic conductor 2 is an elastic connecting sleeve with conductive function. The elastic conductor 2 is preferably a drum spring or crown spring interference-fitted inside the mounting groove 102. Its advantages are that the drum spring or crown spring has better connection precision and conductivity.
[0036] The PE pin 3 is fixedly installed inside the plug module 03. When the plug module 03 is plugged into the socket module 02, the PE pin 3 is connected to the PE socket 101 and is tightly wrapped by the elastic conductor 2 with an elastic interference fit. The PE pin 3, the elastic conductor 2 and the integrated shell 1 are connected in sequence to form a PE flow path structure.
[0037] This connector with a novel PE current-carrying path structure integrates the PE end into a single unit. The PE pin 3 is directly inserted into the elastic conductive element 2 located within the PE terminal slot. Utilizing the elasticity and conductivity of the elastic conductive element 2, an electrical connection is achieved with the integrated shell 1 made of conductive material. Furthermore, the grounding function of the socket module 2 is achieved by installing the shell on the vehicle end (such as the conductive socket shell 021). The beneficial effects are: First, it simplifies the structure. By designing the integrated shell 1 and the PE end as a single structure, the insulating plate, copper alloy sleeve, and copper alloy socket are eliminated, significantly reducing the number of parts. Second, it reduces costs. The procurement, inventory management, and assembly processes of the original multiple independent components are simplified, reducing labor, material, and management costs in the production process. Third, it improves connection reliability. The elastic conductive element 2 is directly installed in the mounting slot 102, making the connection between the pin and the elastic conductive element more direct and tight. Compared to the complex connection method with multiple transitions in the original structure, it reduces the connection interface and potential contact defects. This simplified connection structure effectively reduces resistance and improves the stability and reliability of the electrical connection. Fourth, it enhances product versatility. Due to the adoption of a unified integrated PE pin 3 and elastic conductor 2 adapter principle, different products in the same series can be quickly adapted by making appropriate adjustments to the overall size of the PE pin 3 and the specifications of the elastic conductor 2 according to the specific product's electrical parameters and mechanical size requirements. This greatly improves product versatility, shortens the R&D cycle of new products, and facilitates unified management and maintenance of the same series of products by enterprises. Fifth, it facilitates maintenance and troubleshooting. After the simplification of the structure, the internal layout of the battery swapping connector is clearer. When a fault occurs, maintenance personnel can locate the problem more quickly, reducing maintenance time and costs.
[0038] Preferably, the integrated shell 1 includes a vertically plate-shaped shell body 11, with an integrally connected axial guide tube 10 in the middle of the shell body 11, and a blind-hole PE insertion hole 101 formed in the center of the guide tube 10. Its advantages are: the structure is simple, easy to manufacture, and has high installation accuracy.
[0039] Furthermore, the PE pin 3 includes a cylindrical pin body 30, with the front end of the pin body 30 fitting a PE socket 101 of equal diameter and being tightly fitted by the elastic guide member 2 with an elastic interference fit; the rear end of the pin body 30 is fitted with an interference fit within the first through hole 0301 of the plug housing 030 of the plug module 03; preferably, the front end of the pin body 30 has a spherical guide end 31, and the front end of the PE socket 101 has a rounded chamfer 103. The advantage of this design is that it facilitates high-precision positioning and installation.
[0040] Furthermore, a rectangular tube 12 is provided at the front end of the housing body 11, and the rear tube 033 of the plug housing 030 is inserted into the rectangular tube 12; power sockets 020 are symmetrically installed on both sides of the housing body 11, and a signal socket 022 is installed at the top. Its advantages are: the structure is simple and facilitates the layout of other components.
[0041] Furthermore, a large-diameter end post 32 is integrally formed at the rear end of the needle body 30, and the end post 32 is fitted into a large-diameter cylindrical groove 0302 connected to the first through hole 0301; the plug housing 030 is threadedly connected to a rear mounting plate 031, and the rear end of the end post 32 is bush-sleeved to the fixing hole 0310 of the rear mounting plate 031. Preferably, a sealing ring 4 is provided between the end post 32 and the fixing hole 0310 and the first through hole 0301; the outer wall of the end post 32 is provided with an end insertion hole 34 with a central blind hole structure. The effect is that this arrangement can effectively seal and fix the PE insert pin 3.
[0042] Preferably, the rear end of the end post 32 has a square anti-rotation platform 33, and the fixing hole 0310 is a square anti-rotation hole, in which the square anti-rotation platform 33 is inserted. Its beneficial effect is that this design can circumferentially fix the PE pin 3, preventing it from rotating.
[0043] Furthermore, the integrated shell 1 is floatingly connected within the socket housing 021 of the socket module 02. Preferably, the integrated shell 1 is connected to the inner wall of the socket housing 021 via a vertical spring elastic floating assembly, allowing for vertical floating adjustment of its vertical distance relative to the socket housing 021. The floating is further fine-tuned in the XY direction using a spring that is horizontally positioned and tilted relative to the socket housing 021, thus achieving the floating function when the socket module 02 and the socket module 03 are inserted. The beneficial effect is that this arrangement ensures good fixation even when the two modules are inserted with positional deviations.
[0044] Preferably, the conductive metal material is aluminum alloy.
[0045] The plug housing 030 and the rear mounting plate 031 are made of high-polymer insulating plastic. The advantages are: this material has good strength and conductivity, further enhancing the grounding function.
[0046] Furthermore, the socket module 02 is also equipped with two power pins 032, and the socket module 03 is provided with a power socket 020 that mates with the power pins 032, with a wire 04 connected to the rear end of the power socket 020.
[0047] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.
Claims
1. Connector with a novel PE current-carrying path structure, characterized in that, It includes: PE current-carrying assembly (01) and socket module (02) and plug module (03) of the car end and the battery end are inserted into each other; PE current-carrying assembly (01) includes conductive integrated shell (1), elastic lead member (2) and PE pin (3), The integrated shell (1) is installed in the socket module (02), and the front end of the integrated shell (1) is provided with an axial PE socket (101), and the inner wall of the PE socket (101) is provided with a mounting groove (102) at the front end. The elastic lead member (2) is tightly sleeved in the mounting groove (102). The PE pin (3) is fixedly installed in the plug module (03), and when the plug module (03) is connected to the socket module (02), the PE pin (3) is connected to the PE socket (101) and is tightly sleeved by the elastic lead member (2), and the PE pin (3), the elastic lead member (2) and the integrated shell (1) are sequentially conductive, and constitute a PE current-carrying path structure.
2. The connector with the novel PE current-carrying passage structure according to claim 1, characterized in that, The vertical shell body (11) of the integrated shell (1) is integrally connected with an axial lead pipe (10) in the middle, and the center of the lead pipe (10) forms a blind hole structure of the PE socket (101).
3. The connector with the novel PE current-carrying passage structure according to claim 2, characterized in that, The front end of the PE socket (101) is formed with a circular mounting groove (102) by removing materials, The elastic lead member (2) is a drum spring or a crown spring which is tightly sleeved in the mounting groove (102).
4. The connector with the novel PE current-carrying passage structure according to claim 2, characterized by The cylindrical needle body (30) of the PE pin (3) is inserted into the PE socket (101) at the front end and is tightly sleeved by the elastic lead member (2), and the rear end is axially connected with the first through hole (0301) of the plug shell (030).
5. The connector with the novel PE current-carrying passage structure according to claim 4, characterized by The front end of the needle body (30) is formed with a spherical guide end (31), and the front end of the PE socket (101) is provided with a circular arc chamfer (103).
6. The connector with the novel PE current-carrying passage structure according to claim 2, characterized by The rear pipe (033) of the plug shell (030) is connected to the rectangular pipe (12) at the front end of the shell body (11). The power socket (020) is symmetrically installed on both sides of the shell body (11), and the signal socket (022) is installed at the upper end.
7. The connector with the novel PE current-carrying passage structure according to claim 4, characterized by The rear end of the needle body (30) is integrally formed with a large-diameter end column (32), and the end column (32) is gap-sleeved in a cylindrical groove (0302) connected with the first through hole (0301). The plug shell (030) is connected with the rear mounting plate (031) through threads, and the end column (32) is axially connected with the fixed hole (0310) of the rear mounting plate (031).
8. The connector with the novel PE current-carrying passage structure according to claim 7, characterized by, The rear end of the end column (32) is formed with a square anti-rotation table (33), the fixed hole (0310) is a square anti-rotation hole, and the square anti-rotation table (33) is sleeved in the square anti-rotation hole.
9. The connector with the novel PE current-carrying passage structure according to claim 7, characterized by, Sealing rings (4) are arranged between the end column (32) and the fixed hole (0310) and the first through hole (0301), and the outer side wall of the end column (32) is provided with a center blind hole structure of an end socket (34).
10. The connector with the novel PE current-carrying passage structure according to any one of claims 4 to 9, characterized in that, The integrated shell (1) is floatingly connected in the socket shell (021) of the socket module (02), and the integrated shell (1) and the socket shell (021) are both made of conductive metal material. The plug shell (030) and the rear mounting plate (031) are made of high-molecular insulating plastic material.