CN213546608U - Battery car charging interface capable of preventing needle from being disengaged - Google Patents
Battery car charging interface capable of preventing needle from being disengaged Download PDFInfo
- Publication number
- CN213546608U CN213546608U CN202022984724.8U CN202022984724U CN213546608U CN 213546608 U CN213546608 U CN 213546608U CN 202022984724 U CN202022984724 U CN 202022984724U CN 213546608 U CN213546608 U CN 213546608U
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- needle
- needle body
- shell
- battery car
- disengaged
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Abstract
The utility model discloses a storage battery car interface that charges that prevents to take off needle, its technical scheme main points are including the shell, peg graft terminal and contact pin on the shell, the contact pin is including integrated into one piece's syringe needle, needle body and needle cap, the needle body is provided with that a plurality of has elasticity and is the side bend piece of bending form, a plurality of side bend piece one end all is close to the syringe needle setting and connects on the needle body, a plurality of side bend piece other end all is close to the outer wall perk of needle cap and relative needle body, the hole that supplies the needle body to pass on the shell is the counter sink, the big part of counter sink diameter communicates with shell inner chamber and the little part of its diameter and needle body phase-match, when the needle body is pegged graft and is arranged in the counter sink, a plurality of side bend piece is all spacing in the big part of counter sink diameter, the problem that current contact pin drops from the shell easily has been solved.
Description
Technical Field
The utility model relates to a binding post field, more specifically the storage battery car that says so relates to a prevent to take off needle interface that charges.
Background
Current storage battery car interface that charges is including the shell, terminal and contact pin, contact pin and terminal all alternate on the shell, the contact pin all is including the needle cap, needle body and syringe needle, needle cap diameter is greater than needle body diameter, generally with the needle body by the shell outer alternate on the shell, the syringe needle is located the shell intracavity, the needle cap is contradicted with the shell outer wall, needle body structure is the cylinder, so design has the defect, charge interface and carry out the plug operation with the socket many times at the storage battery car, the contact pin receives the power that promotes outside the shell to cause the contact pin to become flexible and toward the shell outer movement relatively the shell, the contact pin drops from the shell even.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a contact pin is good and prevent the storage battery car interface that charges that the contact pin drops on the shell connection stability.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a prevent storage battery car interface that charges of taking off needle, is including shell, the terminal and the contact pin of pegging graft on the shell, the contact pin is including integrated into one piece's syringe needle, needle body and needle cap, the needle body is provided with a plurality of and has elasticity and is the side bend piece of curved form, a plurality of side bend piece one end all is close to the syringe needle setting and connects on the needle body, a plurality of the side bend piece other end all is close to the outer wall perk of needle cap and relative needle body, the hole that supplies the needle body to pass on the shell is the counter sink, the part that the counter sink diameter is big communicates and the little part of its diameter and needle body phase-match with shell inner chamber, when the needle body is pegged graft and is arranged in the counter sink, a plurality of side bend piece is all spacing in the big part of counter sink diameter.
As a further improvement, the needle cap and the needle body are all hollowed out and communicated with the inner cavity, and a side hole for accommodating the lateral bending piece and communicated with the inner cavity of the needle body is arranged on the peripheral wall of the needle body.
As a further improvement of the utility model, the inner hollow of the needle head is communicated with the inner cavity of the needle body.
As a further improvement of the utility model, the outer wall of the side bending piece is provided with a groove extending along the length direction.
As a further improvement of the utility model, the quantity of the lateral bending piece is two, two the lateral bending piece symmetry sets up in the both sides of the needle body.
As a further improvement of the utility model, be provided with on the perisporium of needle body and seal the gluey groove, it is close to the setting of needle cap to seal the gluey groove.
As a further improvement of the utility model, the glue sealing grooves are distributed along the length direction of the needle body.
The utility model has the advantages that: through set up the lateral bending spare that possesses elasticity on the outer wall at the needle body for the contact pin is pegged graft on the shell and is target in place the back, and the lateral bending spare is spacing in the countersunk head on the shell, and the lateral bending spare is spacing on the shell with the contact pin with the needle cap jointly, and the design of so comparing prior art needle body and being the cylinder can improve the connection stability of the relative shell of contact pin, prevents to appear the phenomenon of taking off the needle, does benefit to increase of service life, and the joint mode is simple.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a front view of the contact pin of the present invention;
fig. 3 is a right side view of the middle pin of the present invention.
Reference numerals: 1. a housing; 2. a terminal; 3. inserting a pin; 4. a needle head; 5. a needle body; 6. a needle cap; 7. a lateral bending piece; 8. a countersunk hole; 9. a side hole; 10. sealing a glue groove; 11. and (4) a groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.
Referring to fig. 1 to 3, the battery car charging interface for preventing needle release of the embodiment includes a housing 1, a terminal 2 inserted in the housing 1, and a pin 3, wherein the pin 3 includes a needle head 4, a needle body 5, and a needle cap 6 which are integrally formed;
on the existing basis, a metal sheet body is punched to form a hollow contact pin 3, cavities are formed in and communicated with the inside of a needle head 4, a needle body 5 and a needle cap 6, two side bending pieces 7 are cut on the peripheral wall of the needle body 5, the two side bending pieces 7 are symmetrically arranged on two sides of the needle body 5, one end of each side bending piece 7 is integrally connected with the needle body 5, the other end of each side bending piece 7 is pushed outwards from the inside of the needle body 5 to enable the side bending pieces 7 to bend outwards relative to the peripheral wall of the needle body 5, the two side bending pieces 7 have elasticity, a hole formed after cutting is a side hole 9, the size of each side bending piece 7 can be smaller than that of the side hole 9 through grinding, a hole for the needle body 5 to pass through on a shell 1 is a counter sink hole 8, the counter hole 8 comprises a large end and a small end, the large end is communicated with the inner cavity of the shell 1, the diameter of the large end is larger than or equal to the farthest distance between the two side bending pieces 7, the small end is communicated with the outside and the diameter of the small end is close to that of the needle body 5;
in the process of installing the contact pin 3 on the shell 1, the needle cap 6 is held to enable the needle head 4 and the needle body 5 to sequentially penetrate through the counter sink 8 from the outside of the shell 1, when the two side bending pieces 7 penetrate through the counter sink 8, the inner wall of the counter sink 8 extrudes the two side bending pieces 7, the two side bending pieces 7 deform and push towards the inside of the side hole 9, when the two side bending pieces 7 are located in the small end of the counter sink 8, the two side bending pieces 7 are extruded into the side hole 9, the needle body 5 is continuously pushed to move towards the inner cavity of the shell 1 until the two side bending pieces 7 are separated from the small end of the counter sink 8, and the two side bending pieces 7 recover deformation and tilt towards the two sides of the needle body 5; in the use process, when the contact pin 3 is pushed outwards from the shell 1, the end parts of the two side bending pieces 7 are abutted against the bottom surface and the side surface of the large end, and when the contact pin 3 is pushed inwards from the shell 1, the needle cap 6 is abutted against the outer wall of the shell 1;
compared with the design that the needle body is cylindrical in the prior art, the design of the two side bending pieces 7 can improve the connection stability of the contact pin 3 relative to the shell 1, prevent the phenomenon of needle falling, facilitate prolonging the service life and have simple clamping mode; compared with the existing solid contact pin which is turned by a lathe, the contact pin 3 is manufactured by a stamping mode and has a cavity inside, the manufacturing cost is low, the used materials are less, the weight is light, and the production cost is effectively reduced.
As a specific embodiment of the improvement, referring to fig. 3, a groove 11 extending along the length direction is formed on the outer wall of the lateral bending member 7, and the design of the groove 11 improves the elastic force distribution of the lateral bending member 7 and facilitates the elastic deformation of the lateral bending member 7.
As an improved specific embodiment, referring to fig. 1 to 3, two glue sealing grooves 10 are arranged on the circumferential wall of the needle body 5 and distributed along the length direction of the needle body 5, the glue sealing grooves 10 are arranged close to the needle cap 6, the glue sealing grooves 10 and the side holes 9 do not interfere with each other, before the contact pin 3 is mounted on the housing 1, glue is applied in the glue sealing grooves 10, the needle body 5 is inserted into the small end of the counter bore 8, and the glue is limited between the glue sealing grooves 10 and the counter bore 8, so that the design can form sealing after the glue is dried, not only the waterproof property between the contact pin 3 and the housing 1 is improved, but also the connection stability of the contact pin 3 relative to the housing 1 is further improved.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a prevent storage battery car interface that charges of taking off needle, is including shell (1), terminal (2) and contact pin (3) of pegging graft on shell (1), contact pin (3) are including integrated into one piece's syringe needle (4), needle body (5) and needle cap (6), its characterized in that: needle body (5) are provided with that a plurality of has elasticity and is the lateral bending piece (7) of crooked form, a plurality of lateral bending piece (7) one end all is close to syringe needle (4) and sets up and connect on needle body (5), a plurality of lateral bending piece (7) other end all is close to the outer wall perk of needle cap (6) and relative needle body (5), the hole that supplies needle body (5) to pass on shell (1) is counter sink (8), the part that counter sink (8) diameter is big communicates with shell (1) inner chamber and the part that its diameter is little and needle body (5) phase-match, when needle body (5) are pegged graft and are arranged in counter sink (8), a plurality of lateral bending piece (7) all are spacing in the part that counter sink (8) diameter is big.
2. The battery car charging interface capable of preventing the needle from being disengaged as claimed in claim 1, wherein: needle cap (6) and needle body (5) are all fretwork and inner chamber intercommunication, set up on the perisporium of needle body (5) and supply lateral bending piece (7) to hold and with side hole (9) of needle body (5) inner chamber intercommunication.
3. The battery car charging interface capable of preventing the needle from being disengaged as claimed in claim 2, wherein: the interior of the needle head (4) is hollowed and communicated with the inner cavity of the needle body (5).
4. The battery car charging interface capable of preventing the needle from being disengaged as claimed in claim 1, 2 or 3, wherein: the outer wall of the side bending piece (7) is provided with a groove (11) extending along the length direction of the side bending piece.
5. The battery car charging interface capable of preventing the needle from being disengaged as claimed in claim 1, 2 or 3, wherein: the number of the side bending pieces (7) is two, and the two side bending pieces (7) are symmetrically arranged on two sides of the needle body (5).
6. The battery car charging interface capable of preventing the needle from being disengaged as claimed in claim 1, 2 or 3, wherein: the peripheral wall of the needle body (5) is provided with a glue sealing groove (10), and the glue sealing groove (10) is arranged close to the needle cap (6).
7. The battery car charging interface capable of preventing the needle from being disengaged as claimed in claim 6, wherein: the two glue sealing grooves (10) are distributed along the length direction of the needle body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022984724.8U CN213546608U (en) | 2020-12-10 | 2020-12-10 | Battery car charging interface capable of preventing needle from being disengaged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022984724.8U CN213546608U (en) | 2020-12-10 | 2020-12-10 | Battery car charging interface capable of preventing needle from being disengaged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213546608U true CN213546608U (en) | 2021-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022984724.8U Active CN213546608U (en) | 2020-12-10 | 2020-12-10 | Battery car charging interface capable of preventing needle from being disengaged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213546608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922117A (en) * | 2021-09-23 | 2022-01-11 | 中航光电科技股份有限公司 | Contact pin, jack and stamping and edge rolling forming contact assembly |
| CN114566822A (en) * | 2022-01-20 | 2022-05-31 | 中航光电科技股份有限公司 | Contact and connector |
-
2020
- 2020-12-10 CN CN202022984724.8U patent/CN213546608U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922117A (en) * | 2021-09-23 | 2022-01-11 | 中航光电科技股份有限公司 | Contact pin, jack and stamping and edge rolling forming contact assembly |
| CN114566822A (en) * | 2022-01-20 | 2022-05-31 | 中航光电科技股份有限公司 | Contact and connector |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325608 sunjialong village, Danxi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Youduan Precision Electronic Technology Co.,Ltd. Address before: 325608 sunjialong village, Danxi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: WENZHOU YOUDUAN ELECTRONICS Co.,Ltd. |