CN221057687U - Novel heavy-current terminal and power connector for automobile - Google Patents
Novel heavy-current terminal and power connector for automobile Download PDFInfo
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- CN221057687U CN221057687U CN202322647593.8U CN202322647593U CN221057687U CN 221057687 U CN221057687 U CN 221057687U CN 202322647593 U CN202322647593 U CN 202322647593U CN 221057687 U CN221057687 U CN 221057687U
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- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract description 2
- 230000013011 mating Effects 0.000 description 8
- 230000002427 irreversible effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a novel high-current terminal and a power connector for an automobile, wherein the power connector comprises a plurality of plastic PIN holes, the plastic PIN holes are internally provided with the high-current terminal, and a plug-in part of the high-current terminal comprises a terminal body with a matching space and a contact unit arranged in the matching space; the contact unit comprises two groups of spring arm units which are symmetrically arranged; the two groups of spring arm units comprise a plurality of end spring arms and deformation-preventing protrusions positioned on the deformation outer sides of the terminal spring arms. The utility model can ensure that the terminal spring plate does not deform in the transportation and assembly processes, and ensure the contact reliability of products; when the terminal is inserted in a limit offset mode, large-displacement shaping deformation is not generated, the terminal is ensured not to yield, and the contact reliability of subsequent products is improved; the abrasion degree of the terminal due to the vibration inertia of the following automobile is reduced, and the service life of the terminal is prolonged.
Description
Technical Field
The utility model relates to the technical field of high-current terminals, in particular to a novel high-current terminal for an automobile and a power connector.
Background
The large-current terminal in the existing market is widely applied to wire-to-wire and wire-to-plate connection in an automobile connection system; the head of the wire-to-board connector is a spring piece, which plays a role of contacting with the accessory, and the tail presses the cable. Due to the complexity of the conventional automotive operating conditions, many failures of poor contact of the connection system occur, many of which are caused by unreliable contact of the automotive high current terminals.
The existing large-current terminals of automobiles in the market have the following defects:
1. The terminal spring is completely exposed outside, and the protection of the terminal spring is lacking. In the process of transporting and assembling the terminal, the terminal elastic sheet is easy to touch with an external object, so that irreversible plastic deformation is generated, and poor contact is generated in the subsequent use process;
2. When the terminal elastic sheet is inserted in a limiting offset manner, large displacement plastic deformation can be generated, so that the terminal elastic sheet can yield, the temperature rise is too high, and the connection performance is not reliable any more.
Disclosure of utility model
In order to overcome the defects of the existing high-current terminal for the automobile, the utility model provides the high-current terminal which can ensure that the terminal elastic sheet does not deform in the transportation and assembly processes, and ensure the contact reliability of products; when the terminal is inserted in a limit offset mode, large-displacement shaping deformation is not generated, the terminal is ensured not to yield, and the contact reliability of subsequent products is improved; the abrasion degree of the terminal due to the vibration inertia of the following automobile is reduced, and the service life of the terminal is prolonged.
The technical scheme adopted for solving the technical problems is as follows:
A novel high-current terminal for automobiles comprises a plug-in part electrically contacted with a counter connector and a clamping part connected with a cable; the plug-in part comprises a terminal body with a matching space and a contact unit arranged in the matching space; the contact unit comprises two groups of spring arm units which are symmetrically arranged; the two groups of spring arm units comprise a plurality of end spring arms and deformation-preventing protrusions positioned on the deformation outer sides of the terminal spring arms.
Preferably, the terminal body comprises a terminal upper wall and a terminal lower wall which are oppositely arranged, and a terminal left wall and a terminal right wall which are oppositely arranged, wherein the two groups of spring arm units are respectively formed at the front ends of the terminal upper wall and the terminal lower wall and are reversely bent and then extend to the rear ends; the two deformation-preventing protrusions are respectively formed on the inner sides of the upper terminal wall and the lower terminal wall; the clamping portion extends rearward from a rear end of the terminal lower wall.
Preferably, each terminal spring arm comprises a U-shaped connecting section, a spring arm main body section, a contact section, a guide section, a support section and a cantilever section which are sequentially arranged; the U-shaped connecting section is connected with the front end of the upper terminal wall or the lower terminal wall, and the spring arm main body section extends obliquely backwards and inwards; the contact section is arc-shaped and protrudes inwards, and the deformation-preventing protrusions are arranged on the outer side of the contact section; the guide section extends outwards in an inclined manner; the support section is arc-shaped and outwards protrudes outwards, and the cantilever beam section extends inwards in an inclined mode.
Preferably, the upper terminal wall, the left terminal wall, the lower terminal wall and the right terminal wall are integrally formed by bending sheet metal blanks, and the upper end of the right terminal wall is integrally formed with the outer terminal wall by bending.
Preferably, a clamping groove is formed at the bending part of the outer wall of the terminal and the right wall of the terminal; the edge of the upper wall of the terminal is convexly provided with a clamping tongue, and the clamping tongue is clamped in the clamping groove.
Preferably, a riveting groove is formed in the edge of the outer wall of the terminal, a riveting protrusion is arranged on the upper portion of the left wall of the terminal in a protruding mode, and the outer wall of the terminal and the left wall of the terminal are riveted through the riveting groove and the riveting protrusion.
The utility model also provides a novel automobile power connector, which comprises a plastic shell, wherein a plurality of plastic PIN holes which are sequentially arranged are formed in the plastic shell, terminals are accommodated in the plastic PIN holes, and the novel automobile high-current terminal is characterized in that the terminals are arranged in the plastic shell.
Preferably, a plastic step is formed in a single plastic PIN hole, a primary locking spring piece is arranged on the upper portion of the terminal body in a digging mode, and when the terminal is configured in the plastic PIN hole, the primary locking spring piece abuts against the plastic step.
Preferably, a plastic slot extending along the width direction of the connector is formed above the plastic shell, a secondary lock is arranged in the plastic slot, the secondary lock comprises a lock body, a plurality of secondary lock pressing blocks extending downwards and secondary lock inserting blocks are arranged on the lock body at intervals, a plurality of pressing block slot holes communicated with the plastic PIN holes are formed at the bottom of the plastic slot, and the secondary lock pressing blocks are arranged in the pressing block slot holes; and secondary lock insertion holes are formed in the plastic shell between the adjacent plastic PIN holes, and the secondary lock insertion blocks are arranged in the secondary lock insertion holes.
Preferably, the lock body both ends downwardly extending are provided with the side arm of inserting, the both sides of plastic shell are protruding to be equipped with secondary lock step, the side arm of inserting with secondary lock step buckle is connected.
Compared with the prior art, the utility model has the beneficial effects that:
1. The contact unit contacted with the mating connector is enclosed in the mating space, so that the problems of irreversible plastic deformation and poor contact caused by the contact of external force to the spring arm unit in the transportation and assembly processes are avoided;
2. The deformation-preventing protrusions are arranged on the outer sides of the deformation directions of the terminal spring arms, so that large displacement deformation generated when the spring arm units are inserted in a limiting offset manner is avoided, the terminals are ensured to be unyielding, and the contact reliability of subsequent products is improved;
3. the whole end bullet arm cannot be easily deformed by limiting the walls around the terminal body, so that the vibration resistance of the terminal is enhanced;
4. The supporting section and the cantilever beam section are arranged at the head part of the terminal spring arm, so that a simple cantilever beam structure is formed between the terminal spring arm and the corresponding upper wall or lower wall of the terminal, and enough forward force is provided for the use process of the terminal, so that an oxide film on the metal surface can be scraped off, and the contact reliability of the terminal is ensured;
5. Through seting up secondary lock jack on the plastic body between adjacent terminal, not only can realize installing each terminal through the secondary lock is stable, can more increase the creepage distance between the adjacent terminal for the product can be used in high voltage connector system.
Drawings
FIG. 1 is a schematic view of the overall structure of a terminal of the present utility model;
FIG. 2 is a cross-sectional view of a terminal of the present utility model;
FIG. 3 is a schematic longitudinal cross-sectional view of the power connector of the present utility model;
FIG. 4 is a schematic cross-sectional view of a power connector of the present utility model;
Reference numerals:
A-the plug-in part; b-clamping part;
1-a terminal body; 10-end bullet arm; 10-1-U-shaped connecting sections; 10-2-spring arm body section; 10-3-contact section; 10-4-guiding section; 10-5-support sections; 10-6-cantilever beam sections; 100-pairing units; 101-terminal upper wall; 102-terminal left wall;
103-terminal lower wall; 104-terminal right wall; 105-terminal outer wall; 11-deformation-preventing protrusions; 12-clamping grooves; 13-a clamping tongue;
14-riveting grooves; 15-riveting a bulge;
2-a plastic housing; 20-plastic PIN holes; 200-plastic slots; 21-a primary locking spring piece; 22-plastic steps; 23-secondary lock; 230-a lock body; 231-secondary lock pressing blocks; 232-a secondary lock plug; 233-briquetting slots; 234-secondary lock insertion holes;
235-side arms; 236-secondary lock step;
3-cable.
Detailed Description
The technical scheme protected by the utility model is specifically described below with reference to the accompanying drawings.
The utility model provides a novel power connector for an automobile and a high-current terminal in the power connector, referring to fig. 3 and 4, the power connector comprises a plastic shell 2, the plastic shell 2 is provided with a plurality of plastic PIN holes 20, the plastic PIN holes 20 are sequentially arranged along the end face of the plastic shell 2, the high-current terminal is configured in the plastic PIN holes, and when the terminal of the connector matched with the power connector is inserted into the plastic PIN holes 20, the high-current terminal can be electrically contacted with the high-current terminal.
In order to increase the creepage distance between adjacent terminals, simultaneously, each high-current terminal is fixedly arranged in a corresponding plastic PIN hole 20, a plastic slot 200 extending along the width direction of the connector is arranged above the plastic shell 2, a secondary lock 23 is arranged in the plastic slot 200, the secondary lock 23 comprises a lock body 230, two ends of the lock body 230 are provided with side inserting arms 235 in a downward extending mode, and a plurality of secondary lock pressing blocks 231 and secondary lock inserting blocks 232 extending downwards are arranged on the lock body 230 between the two side inserting arms 235 at intervals; correspondingly, two sides of the plastic shell 2 are convexly provided with secondary lock steps 236, the bottom of the plastic slot 200 is provided with a plurality of press block slot holes 233 communicated with the plastic PIN holes 20, the plastic shell 2 between the adjacent plastic PIN holes 20 is provided with secondary lock insertion holes 234, when the secondary lock 23 is installed in the plastic slot 200, the secondary lock pressing blocks 231 are configured in the press block slot holes 233, the secondary lock insertion blocks 232 are configured in the secondary lock insertion holes 234, and the side insertion arms 235 are in buckling connection with the secondary lock steps 236; the high-current terminals are stably assembled in the plastic housing 2 through the secondary lock blocks 231 and the side plug arms 235, and the creepage distance between the adjacent terminals is increased through the arrangement of the secondary lock plug holes and the secondary lock plug blocks on the plastic housing 2 between the adjacent terminals, so that the product can be used in a high-voltage connector system.
In addition, a primary locking spring piece 21 is arranged on the high-current terminal, correspondingly, a plastic step 22 is arranged in a single plastic PIN hole 20, and when the terminal is configured in the plastic PIN hole 20, the primary locking spring piece 21 abuts against the plastic step 22, so that the stability of terminal assembly is further ensured.
Referring to fig. 1 and 2, the high-current terminal according to the present utility model includes a plugging portion a electrically contacting with a mating connector and a clamping portion B electrically connected with a cable, wherein the plugging portion a includes a terminal body 1 having a mating space 100 and a contact unit disposed in the mating space 100; the contact unit comprises two groups of spring arm units which are symmetrically arranged; further, the terminal body 1 includes a terminal upper wall 101 and a terminal lower wall 103 which are oppositely disposed, and a terminal left wall 102 and a terminal right wall 104 which are oppositely disposed, and the two groups of spring arm units are respectively formed at the front ends of the terminal upper wall 101 and the terminal lower wall 103 and are reversely bent and then extend to the rear ends; in this embodiment, the upper terminal wall 101, the left terminal wall 102, the lower terminal wall 103 and the right terminal wall 104 are integrally formed by bending sheet metal blanks, meanwhile, the upper end of the right terminal wall 104 is integrally formed with an outer terminal wall 105, the outer terminal wall 105 is located above the upper terminal wall 101, two groups of spring arm units are integrally formed with the upper terminal wall 101 or the lower terminal wall 103 respectively, the primary locking spring piece 21 is formed on the outer terminal wall 105 in a material drawing manner and extends outwards, and the clamping part B is integrally formed at the rear end of the lower terminal wall 103 and extends backwards.
Further, the two groups of spring arm units comprise a plurality of end spring arms 10 and deformation-preventing protrusions 11 positioned on the deformation outer sides of the terminal spring arms 10, wherein, as shown in fig. 2, each terminal spring arm 10 comprises a U-shaped connecting section 10-1, a spring arm main body section 10-2, a contact section 10-3, a guide section 10-4, a support section 10-5 and a cantilever section 10-6 which are sequentially arranged; the U-shaped connecting section 10-1 is formed with the front end of the terminal upper wall 101 or the terminal lower wall 103 at one time, the spring arm main body section 10-2 extends obliquely inwards backward, the contact section 10-3 is arc-shaped and protrudes inwards, the contact section and the spring arm main body section 10-2 jointly realize electric contact with the mating connector, namely the terminal of the mating connector is in electric contact with the contact section 10-3, and the guide section 10-4 extends obliquely outwards; the support section 10-5 is arc-shaped and protrudes outwards, and the cantilever section 10-6 extends obliquely inwards. When the mating connector is inserted, the terminal spring arm 10 deforms towards the terminal upper wall 101 or the terminal lower wall 103, the supporting section 10-5 and the cantilever beam section 10-6 can form a simple beam structure with the corresponding terminal upper wall 101 or terminal lower wall 103, so that enough forward force is provided for the terminal using process, the reliability of terminal contact is further ensured, and the guiding section 10-4 provides a transition effect for forming the simple beam structure.
In order to avoid plastic deformation caused by excessive displacement of the terminal spring arm during extreme bias insertion, deformation-preventing protrusions 11 are arranged on the outer sides of deformation of the terminal spring arm, in this embodiment, the deformation-preventing protrusions 11 are respectively formed on the inner sides of the terminal upper wall 101 and the terminal lower wall 103, and the deformation-preventing protrusions 11 are arranged on the outer sides of the contact sections 10-3 and protrude towards the contact sections 10-3, so that large displacement deformation of the spring arm unit can be avoided, and unyielding of the terminal is ensured.
In one embodiment, a clamping groove 12 is formed at the bending position of the terminal outer wall 105 and the terminal right wall 104; correspondingly, the edge of the upper terminal wall 101 is convexly provided with a clamping tongue 13, meanwhile, the edge of the outer terminal wall 105 is provided with a riveting groove 14, the upper part of the left terminal wall 102 is convexly provided with a riveting protrusion 15, the clamping tongue 13 is clamped in the clamping groove 12, the riveting protrusion 15 is riveted in the riveting groove 14, so that the terminal body is a stable and difficultly deformed whole, the vibration resistance of the terminal is enhanced, the spring arm unit is enclosed in the matching space, the irreversible plastic deformation and poor contact problem caused by the contact of external force to the spring arm unit in the transportation and assembly processes are avoided, and the reliability of the connector is further ensured.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. The novel high-current terminal for the automobile is characterized by comprising a plugging part and a clamping part, wherein the plugging part is electrically contacted with a counter connector, and the clamping part is connected with a cable; the plug-in part comprises a terminal body with a matching space and a contact unit arranged in the matching space; the contact unit comprises two groups of spring arm units which are symmetrically arranged; the two groups of spring arm units comprise a plurality of end spring arms and deformation-preventing protrusions positioned on the deformation outer sides of the terminal spring arms.
2. The novel high-current terminal for the automobile according to claim 1, wherein the terminal body comprises a terminal upper wall and a terminal lower wall which are oppositely arranged, and a terminal left wall and a terminal right wall which are oppositely arranged, and the two groups of spring arm units are respectively formed at the front ends of the terminal upper wall and the terminal lower wall, are reversely bent and extend to the rear ends; the two deformation-preventing protrusions are respectively formed on the inner sides of the upper terminal wall and the lower terminal wall; the clamping portion extends rearward from a rear end of the terminal lower wall.
3. The novel high-current terminal for the automobile according to claim 2, wherein the single terminal spring arm comprises a U-shaped connecting section, a spring arm main body section, a contact section, a guide section, a support section and a cantilever beam section which are sequentially arranged; the U-shaped connecting section is connected with the front end of the upper terminal wall or the lower terminal wall, and the spring arm main body section extends obliquely backwards and inwards; the contact section is arc-shaped and protrudes inwards, and the deformation-preventing protrusions are arranged on the outer side of the contact section; the guide section extends outwards in an inclined manner; the support section is arc-shaped and outwards protrudes outwards, and the cantilever beam section extends inwards in an inclined mode.
4. The novel high-current terminal for an automobile according to claim 2, wherein the terminal upper wall, the terminal left wall, the terminal lower wall and the terminal right wall are integrally formed by bending a sheet metal blank, and the terminal outer wall is integrally formed at the upper end of the terminal right wall by bending.
5. The novel high-current terminal for the automobile according to claim 4, wherein a clamping groove is formed at a bending position of the outer wall of the terminal and the right wall of the terminal; the edge of the upper wall of the terminal is convexly provided with a clamping tongue, and the clamping tongue is clamped in the clamping groove.
6. The high-current terminal for a novel automobile according to claim 4, wherein a riveting groove is formed in the edge of the outer wall of the terminal, a riveting protrusion is provided on the upper portion of the left wall of the terminal, and the outer wall of the terminal and the left wall of the terminal are riveted through the riveting groove and the riveting protrusion.
7. The utility model provides a novel power connector for car, its characterized in that includes the plastic shell, set up a plurality of plastic PIN holes of arranging in proper order in the plastic shell, the downthehole terminal that holds of plastic PIN, the terminal is the novel heavy current terminal for car of any one of claims 1 to 6.
8. The novel automotive power connector of claim 7, wherein a single plastic step is provided in the plastic PIN hole, and the upper portion of the terminal body is provided with a primary locking spring piece, and the primary locking spring piece abuts against the plastic step when the terminal is arranged in the plastic PIN hole.
9. The novel power connector for automobiles according to claim 8, wherein a plastic slot extending along the width direction of the connector is formed above the plastic shell, a secondary lock is arranged in the plastic slot, the secondary lock comprises a lock body, a plurality of secondary lock pressing blocks extending downwards and secondary lock inserting blocks are arranged at intervals on the lock body, a plurality of pressing block slot holes communicated with the plastic PIN holes are formed at the bottom of the plastic slot, and the secondary lock pressing blocks are arranged in the pressing block slot holes; and secondary lock insertion holes are formed in the plastic shell between the adjacent plastic PIN holes, and the secondary lock insertion blocks are arranged in the secondary lock insertion holes.
10. The novel power connector for automobiles according to claim 9, wherein the two ends of the lock body are provided with side-inserted arms extending downwards, two sides of the plastic housing are provided with secondary lock steps in a protruding mode, and the side-inserted arms are connected with the secondary lock steps in a buckling mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322647593.8U CN221057687U (en) | 2023-09-27 | 2023-09-27 | Novel heavy-current terminal and power connector for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322647593.8U CN221057687U (en) | 2023-09-27 | 2023-09-27 | Novel heavy-current terminal and power connector for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221057687U true CN221057687U (en) | 2024-05-31 |
Family
ID=91200254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322647593.8U Active CN221057687U (en) | 2023-09-27 | 2023-09-27 | Novel heavy-current terminal and power connector for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221057687U (en) |
-
2023
- 2023-09-27 CN CN202322647593.8U patent/CN221057687U/en active Active
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| GR01 | Patent grant |