Connector with high-reliability low-voltage grounding integrated module
By integrating the module structure and using grounding springs and elastic sleeves to replace wire harness welding, the complexity and instability of the grounding function of low-voltage components are solved, and a grounding connector with high reliability and convenient maintenance is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-27
AI Technical Summary
The existing low-voltage component grounding function is achieved by welding a separate grounding cable, which results in a complex welding process, weak welds, and difficulties in disassembly and maintenance, increasing production costs and operational difficulty, and affecting the reliability of the grounding circuit.
It adopts an integrated module structure with grounding spring, elastic sleeve, grounding detection resistor and PCB board, and grounding is achieved through elastic contact conductive shell, replacing wire harness soldering. The integrated design facilitates detection and maintenance.
It simplifies the production process, reduces operational difficulty and equipment requirements, improves the stability and reliability of grounding connections, reduces failure rate and maintenance costs, and enables convenient testing and maintenance.
Smart Images
Figure CN224053564U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of connector, especially in high reliability low voltage ground integrated module's connector. BACKGROUND
[0002] At present, new energy industry develops rapidly. The connector is widely used in electric equipment, and the above connector needs grounding function, wherein the grounding function of the low voltage assembly is realized through a single grounding cable, and the resistance is directly welded on the cable to ensure the conduction of the grounding loop, thereby maintaining the electrical safety of the system. However, the welding process of the resistance and the cable is complex, and the welding resistance needs accurate operation and professional equipment to ensure the quality and stability of the welding point, which increases the complexity of the production process and the dependence on skilled workers, and increases the manufacturing cost. Secondly, the welding structure of the resistance and the cable has the problems of unstable welding point, virtual welding or poor welding, which will cause unstable resistance connection and affect the reliability of the whole grounding loop. Thirdly, the welding structure of the resistance and the cable is difficult to disassemble and maintain, and since the resistance is welded on the cable, it needs to be disassembled for detection and maintenance, which not only increases the operation difficulty, but also may cause damage to other parts. SUMMARY
[0003] In order to solve one or more of the above problems, the utility model provides a connector with high reliability low voltage ground integrated module.
[0004] According to one aspect of the utility model, the connector with high reliability low voltage ground integrated module comprises:
[0005] The connector body comprises a conductive shell and an integrated module connected in the shell, and the integrated module is inserted with a plurality of low voltage terminals and a grounding terminal in the low voltage seat;
[0006] The grounding assembly comprises a grounding sheet, an elastic sleeve, a grounding detection resistance, a PCB board and a grounding terminal, the inner end of the grounding sheet is fixedly connected with the outer end of the PCB board, one end of the elastic sleeve is fixedly connected with the inner hole of the PCB board, and the grounding detection resistance is welded on one surface of the PCB board;
[0007] The grounding assembly is placed in the low voltage seat, the outer wall of the elastic sleeve is inserted into the grounding shaft hole of the low voltage seat in an interference fit, the grounding terminal is inserted into the inner hole of the elastic sleeve in an interference fit, and the outer end of the grounding sheet is elastically attached to the inner wall of the shell through the grounding through hole of the low voltage seat, thereby realizing reliable grounding function.
[0008] In some embodiments, the sleeve body of the elastic sleeve is circumferentially arranged with a plurality of elastic sheets at one end, and the inner hole is circumferentially arranged with a plurality of arc-shaped first insertion holes at the outer edge, and the elastic sheets are inserted into the first insertion holes.
[0009] The elastic sheet and the first jack are welded together or the elastic sheet is punched and bent to fix the first jack.
[0010] In some embodiments, the elastic sleeve is a stamped crown spring.
[0011] In some embodiments, the grounding detection resistor is a 1K resistor.
[0012] In some embodiments, the lower end of the arc-shaped sheet of the grounding sheet is a U-shaped connecting end, one end of the U-shaped connecting end is inserted into the second jack of the PCB, the other end of the U-shaped connecting end is attached to the outer side of the PCB, and the arc-shaped sheet is elastically deformed to contact the shell.
[0013] The U-shaped connecting end and the second jack are welded or punched and bent to fix and attach.
[0014] In some embodiments, the rear end plate of the low-voltage seat is clamped to the rear end ring of the front end plate, one side of the rear end ring is provided with a grounding through hole, the low-voltage terminal is inserted into the low-voltage insertion pipe of the front end plate at the front end and inserted into the low-voltage shaft hole of the rear end ring at the rear end, and the grounding terminal is inserted into the grounding insertion pipe of the front end plate at the front end and inserted into the elastic sleeve in the grounding shaft hole.
[0015] In some embodiments, the rear end of the front end plate forms a positioning ring accommodating the grounding assembly, the outer side wall of the positioning ring is in communication with the grounding through hole, and the inner end wall of the positioning ring is provided with a positioning groove accommodating the end of the grounding sheet.
[0016] In some embodiments, the rear end plate is provided with a support platform, the PCB is placed in the positioning ring, one end of the PCB is attached to the grounding shaft hole, and the other end of the PCB is attached to the support platform of the rear end plate.
[0017] In some embodiments, a sealing ring is further arranged between the grounding terminal and the positioning shoulder of the grounding insertion pipe.
[0018] In some embodiments, the grounding sheet is a beryllium copper sheet; or the shell is made of aluminum alloy.
[0019] The connector has a low-voltage grounding integrated module, the grounding assembly is provided with an elastic sleeve to tightly connect a grounding terminal, a grounding signal is transferred through a PCB, and an elastic grounding sheet is elastically contacted and deformed to elastically contact the inner wall of a shell, thereby replacing a wiring harness grounding structure to form high reliability grounding, and a grounding detection resistor is used to conduct a grounding loop, thereby replacing a resistor welded on the wiring harness to form reliable monitoring of grounding conduction, and the beneficial effects are as follows: first, the novel grounding structure is welded with the PCB and the resistor, thereby simplifying a production process, reducing operation difficulty and equipment requirements, easily obtaining welding point quality and stability, and reducing manufacturing cost; second, the novel grounding structure is welded with the PCB and the resistor, thereby avoiding possible process problems and quality risks in the welding process, reducing a failure rate, stabilizing connection, and improving overall reliability of the product; third, integrated design makes maintenance and detection more convenient, the integrated design makes the resistor and the low-voltage connector assembly become a whole, detection and maintenance can be performed without disassembling the whole wiring harness, thereby reducing maintenance and detection difficulty and cost, improving equipment availability and reliability; fourth, the elastic grounding sheet of the grounding assembly is in elastic contact with the shell, the elastic sleeve of the grounding assembly is in elastic locking contact with the grounding terminal, and the two connections are detachable structures, which are convenient for disassembly and maintenance, and the whole part quantity is small, thereby reducing cost; and fifth, the elastic sleeve effectively realizes signal transfer in a small space, the elastic grounding sheet is in elastic and flexible contact, and therefore the grounding reliability is further ensured. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 FIG. 1 is a three-dimensional schematic view of a connector with a high-reliability low-voltage grounding integrated module according to an embodiment of the present application;
[0021] Figure 2 FIG. 2 is a three-dimensional schematic view of the integrated module shown in FIG. 1; Figure 1
[0022] Figure 3 Figure 2
[0023] Figure 4 Figure 2
[0024] Figure 5 Figure 4
[0025] Figure 6 Figure 2
[0026] Figure 7 Figure 2
[0027] Grounding assembly 00, grounding spring 1, circular arc piece 10, U-shaped connecting end 11, elastic sleeve 2, sleeve body 20, elastic piece 21, grounding detection resistor 3, PCB board 4, inner end hole 41, first insertion hole 42, second insertion hole 43, grounding terminal 5, sealing ring 7;
[0028] Housing 01;
[0029] Integrated module 02, low-voltage terminal 020, low-voltage seat 6, rear end plate 60, grounding shaft hole 600, low-voltage shaft hole 601, support table 602, front end plate 61, rear end ring 610, grounding through hole 611, low-voltage insertion pipe 612, grounding insertion pipe 613, positioning ring 614, positioning groove 615;
[0030] Power terminal 03. DETAILED DESCRIPTION
[0031] The utility model will be described in further detail below in combination with the drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.
[0032] Figures 1 to 7 A connector with a high-reliability low-voltage grounding integrated module is schematically shown according to an embodiment of the utility model. As shown in the figure, the connector with a high-reliability low-voltage grounding integrated module includes:
[0033] Connector body, the connector body includes a conductive housing 01 and an integrated module 02 connected in the housing 01, a plurality of low-voltage terminals 020 and a grounding terminal 5 are inserted into the low-voltage seat 6 of the integrated module 02;
[0034] Grounding assembly 00, grounding spring 1, circular arc piece 10, U-shaped connecting end 11, elastic sleeve 2, sleeve body 20, elastic piece 21, grounding detection resistor 3, PCB board 4, inner end hole 41, first insertion hole 42, second insertion hole 43, grounding terminal 5, sealing ring 7;
[0035] The grounding assembly 00 is placed in the low-voltage seat 6, the elastic sleeve 2 is inserted into the grounding shaft hole 600 of the low-voltage seat 6 in an interference fit, the grounding terminal 5 is inserted into the inner hole 41 in an interference fit, and the outer end of the grounding spring sheet 1 is inserted into the grounding hole 611 of the low-voltage seat 6 and is elastically attached to the inner wall of the shell 01, thereby achieving reliable grounding.
[0036] The connector with high reliability and low-voltage grounding integrated module integrates the grounding assembly 00 and the low-voltage terminal assembly into a module, thereby forming an integrated module 02. The grounding assembly 00 is tightly connected to the grounding terminal 5 through the elastic sleeve 2, the grounding signal is transmitted through the PCB board 4, and the inner wall of the shell 01 is elastically contacted and conducted through the expansion and deformation of the grounding spring sheet 1. The wire harness grounding structure is replaced, and high reliability grounding is achieved. In addition, the grounding detection resistor 3 is used to conduct the grounding loop, and the resistor welded on the wire harness is replaced to form reliable monitoring of the grounding conduction. The beneficial effects are as follows: first, the new grounding structure uses PCB board and resistor welding, which simplifies the production process, reduces the operation difficulty and equipment requirement, and easily obtains the quality and stability of the welding point, thereby reducing the manufacturing cost; second, the new grounding structure uses PCB board and resistor welding, which avoids the possible process problems and quality risks in the welding process, reduces the failure rate, ensures stable connection, and improves the overall reliability of the product; third, the integrated design makes maintenance and detection more convenient. The integrated design makes the resistor and the low-voltage connector assembly into a whole, so that the detection and maintenance can be performed without disassembling the entire wire harness, thereby reducing the difficulty and cost of maintenance and detection, and improving the availability and reliability of the equipment; fourth, the grounding spring sheet 1 of the grounding assembly 00 elastically contacts the shell 01, and the elastic sleeve 2 of the grounding assembly 01 elastically locks the grounding terminal 5. The two connections are detachable structures, which are convenient for disassembly and maintenance, and the overall number of parts is small, thereby reducing the cost; fifth, the elastic sleeve 2 effectively realizes signal switching in a small space, and the grounding spring sheet 2 is elastically buffered and flexibly contacted, thereby further ensuring the grounding reliability.
[0037] Further, the sleeve body 20 of the elastic sleeve 2 is provided with a plurality of elastic sheets 21 at one end, the outer edge of the inner hole 41 is provided with a plurality of first insertion holes 42 in the form of circular arcs, and the elastic sheets 21 are inserted into the first insertion holes 42. Preferably, the elastic sheets 21 and the first insertion holes 42 are welded into one body or the elastic sheets 21 are stamped and bent to be fixedly attached to the outer edge of the first insertion holes 42. The beneficial effects are as follows: the arrangement can achieve good position accuracy of the elastic sleeve 2, ensure effective locking of the grounding terminal 5, and further improve the signal switching reliability.
[0038] Preferably, the elastic sleeve 2 is a stamped crown spring. The beneficial effects are as follows: the stamped crown spring has better elastic connection performance, and improves the signal switching accuracy.
[0039] Further, the grounding spring 1 comprises an outwardly curved arc-shaped sheet body 10, the lower end of the arc-shaped sheet body 10 is a U-shaped connecting end 11, one end of the U-shaped connecting end 11 is inserted into the rectangular second insertion hole 43 of the PCB 4, the other end of the U-shaped connecting end 11 is attached to the outer side of the PCB 4, and the arc-shaped sheet body 10 is elastically deformed to contact the shell 01; the U-shaped connecting end 11 and the second insertion hole 43 are welded or stamping-bent fixedly attached. The beneficial effect is that the setting can realize good position of the grounding spring 1, ensure effective contact with the shell 01, and further improve grounding reliability.
[0040] Further, the low-voltage seat 6 comprises a rear end plate 60 and a front end plate 61, the rear end plate 60 is clamped into the rear end ring 610 of the front end plate 61, one side of the rear end ring 610 is provided with a rectangular grounding through hole 611, the rear end plate 60 is provided with a plurality of low-voltage shaft holes 601 in a through hole structure and a grounding shaft hole 600 in a blind hole structure, the front end of the low-voltage terminal 020 is inserted into the low-voltage insertion pipe 612 of the front end plate 61, and the rear end is inserted into the low-voltage shaft hole 601; the front end of the grounding terminal 5 is inserted into the grounding insertion pipe 613 of the front end plate 61, and the rear end is inserted into the elastic sleeve 2 in the grounding shaft hole 600. The beneficial effect is that the structure is simple, the overall space is small, and assembly is facilitated.
[0041] Preferably, the rear end of the front end plate 61 forms a positioning ring 614 accommodating the grounding assembly 00, the outer side wall of the positioning ring 614 is in communication with the grounding through hole 611, and the inner end wall of the positioning ring 614 is provided with a positioning groove 615 accommodating the end of the grounding spring 1. The beneficial effect is that the positioning ring 614 effectively protects the grounding assembly 00.
[0042] Preferably, the rear end plate 60 is provided with a support table 602, the PCB 4 is placed in the positioning ring 614, one end of the PCB 4 is attached to the grounding shaft hole 600, and the other end is attached to the support table 602. The beneficial effect is that the setting improves the fixing accuracy and reliability of the grounding assembly 00.
[0043] Preferably, a sealing ring 7 is further arranged between the grounding terminal 5 and the positioning shoulder of the grounding insertion pipe 613. The beneficial effect is that the sealing ring 7 effectively seals and protects the grounding assembly 00.
[0044] Further, the connector body further comprises two power terminals 03, the two power terminals 03 are connected in the shell 01 in a shaft sleeve manner and are connected to power wires at the rear end, and the screw hole members of the panel of the shell 01 are fixedly connected to the body panel or other fixed substrates.
[0045] Preferably, the grounding spring 1 is a beryllium copper spring. The beneficial effect is that the spring made of this material has good elasticity and strong conductivity, and is convenient for realizing the grounding function.
[0046] Preferably, the shell 01 is made of aluminum alloy. The beneficial effect is that the aluminum alloy has high strength and high conductivity.
[0047] The above merely describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are all within the protection scope of the present application.
Claims
1. Connector with high reliability low voltage ground integrated module, characterized in that, The utility model relates to a connector, including: The connector body includes the shell (1) of electric conduction and the integrated module (2) connected in the shell (1), and the low pressure seat (6) of integrated module (2) inserts several low pressure terminals (020) and a ground terminal (5); The ground assembly (00) includes the ground spring (1), the elastic sleeve (2), the ground detection resistance (3), the PCB board (4) and the ground terminal (5), and the inner end of ground spring (1) is fixedly connected with the outer end of PCB board (4), one end of elastic sleeve (2) is fixedly connected with the outer edge of inner end hole (41) of PCB board (4), and the ground detection resistance (3) is welded on one surface of PCB board (4); The ground assembly (00) is placed in the low pressure seat (6), the elastic sleeve (2) is inserted into the ground shaft hole (600) of low pressure seat (6) with interference, the ground terminal (5) is inserted into the inner hole of elastic sleeve (2) with interference, and the outer end of ground spring (1) is stretched out of the ground through hole (611) of low pressure seat (6) and is elastically attached to the inner wall of shell (1).
2. The connector of claim 1, wherein The sleeve body (20) of elastic sleeve (2) is provided with a plurality of elastic sheets (21) on one end in the form of an array, and the outer edge of inner end hole (41) is provided with a plurality of arc-shaped first insertion holes (42) in the form of an array, and elastic sheet (21) is inserted into first insertion hole (42); Elastic sheet (21) and first insertion hole (42) are welded into one body or are stamped and bent to be fixedly attached to the outer edge of first insertion hole (42).
3. The connector of claim 2, wherein The elastic sleeve (2) is a stamped crown spring.
4. The connector of claim 1, wherein The ground detection resistance (3) is a 1K resistance.
5. The connector of claim 1, wherein The lower end of arc sheet body (10) of ground spring (1) is a U-shaped connecting end (11), one end of U-shaped connecting end (11) is inserted into the second insertion hole (43) of PCB board (4), the other end of U-shaped connecting end (11) is attached to the outer side of PCB board (4), and arc sheet body (10) is elastically deformed to contact shell (1). U-shaped connecting end (11) and second insertion hole (43) are welded or stamped and bent to be fixedly attached.
6. The connector of claim 1, wherein The rear end plate (60) of low pressure seat (6) is clamped with the rear end ring (610) of front end plate (61), one side of rear end ring (610) is provided with ground through hole (611), the front end of low pressure terminal (020) is inserted into the low pressure insertion pipe (612) of front end plate (61) and the rear end is inserted into the low pressure shaft hole (601) of rear end ring (610), and the front end of ground terminal (5) is inserted into the ground insertion pipe (613) of front end plate (61) and the rear end is inserted into the elastic sleeve (2) in ground shaft hole (600).
7. The connector of claim 6, wherein The rear end of front end plate (61) forms a positioning ring (614) for accommodating ground assembly (00), the outer side wall of positioning ring (614) is communicated with ground through hole (611), and the inner end wall of positioning ring (614) is provided with a positioning groove (615) for accommodating the end of ground spring (1).
8. The connector of claim 7, wherein, The rear end plate (60) is provided with a support table (602), the PCB board (4) is placed in a positioning ring (614), one end of the PCB board (4) is attached to a ground shaft hole (600), and the other end is attached to the support table (602) of the rear end plate (60).
9. The connector of claim 6, wherein, A sealing ring (7) is further arranged between the positioning shoulder of the ground terminal (5) and the ground insertion tube (613).
10. The connector according to any one of claims 1 to 9, wherein The ground spring plate (1) is a beryllium copper spring plate, or the shell (01) is an aluminum alloy material.