CN217215186U - Terminal with protection function - Google Patents
Terminal with protection function Download PDFInfo
- Publication number
- CN217215186U CN217215186U CN202220385846.1U CN202220385846U CN217215186U CN 217215186 U CN217215186 U CN 217215186U CN 202220385846 U CN202220385846 U CN 202220385846U CN 217215186 U CN217215186 U CN 217215186U
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- China
- Prior art keywords
- terminal
- terminal body
- elastic sheet
- protection
- protection function
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model provides a terminal with protect function, belongs to electric energy transmission technical field, and specific relates to a terminal with protect function. Comprises a terminal body and a protection part; the terminal body comprises an elastic sheet and an insertion cavity defined by the elastic sheet; the protective part is sleeved on the terminal body and provided with an opening through which the elastic sheet can radially pass; the open holes correspond to the elastic sheets one to one. The protection part can play the guard action to the flexure strip of terminal body. When the male terminal is inserted into the plugging cavity, the male terminal can be restrained by the protection part and can be just inserted into the plugging cavity, and deformation of a certain elastic sheet due to overlarge stress is avoided. The protection part can also play holistic supporting role to the flexure strip, prevents that other devices from to the extrusion of flexure strip and making its deformation. When the elastic sheet is extruded by the male terminal from inside to outside, the elastic sheet can be opened through the opening to complete the insertion of the male terminal.
Description
Technical Field
The utility model belongs to the technical field of the power transmission, specificly relate to a terminal with protect function.
Background
In the field of electrical connection, a plurality of electrical circuits are required to be connected by plugging terminals, at present, most of the electrical circuits are connected by plugging male terminals and female terminals, especially on large-current and large-wire-diameter wire harnesses, such as a charging gun head and a charging seat for charging batteries of a rapidly developed new energy automobile, and the internal terminals are all in a structure that the male terminals and the female terminals are plugged. The female terminal is provided with a plug-in cavity surrounded by a plurality of elastic sheets, and the plug-in cavity can accommodate the male terminal to be inserted. The elastic sheet has elasticity, and is easy to deform due to external force extrusion, once the elastic sheet deforms, the elastic force applied to the male terminal by each elastic sheet is different, and at the moment, the male terminal and the elastic sheet in the place with large stress are easier to abrade the plating of the terminal in repeated plugging and unplugging of the terminal. The plating layer of the terminal is used for improving the corrosion resistance of the terminal, improving the conductivity, increasing the plugging times and prolonging the service life. Once the plating layer is worn and exposed out of the material of the terminal body, the resistance of the terminal is increased, the conductivity is reduced, and the charging efficiency is seriously affected. The increase in resistance also leads to a rise in temperature, which can easily cause accidents to endanger life and property safety, especially in high-voltage charging. At present, a measure for protecting the elastic sheet of the female terminal is lacked. Therefore, a new solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a terminal with protect function protects the elastic arm of terminal body, prevents that it from receiving external force and taking place to warp.
A terminal with a protection function comprises a terminal body and a protection part;
the terminal body comprises an elastic sheet and an insertion cavity defined by the elastic sheet;
the protective part is sleeved on the terminal body and provided with an opening through which the elastic sheet can radially pass;
the open holes correspond to the elastic sheets one to one.
Further, the inner diameter of the insertion cavity is gradually reduced towards the direction close to the free end of the elastic sheet.
Furthermore, be provided with on the terminal body protrusion in the stuck point on terminal body surface, be provided with the bayonet socket on the protection portion, the protection portion with the terminal body passes through the bayonet socket reaches the stuck point joint.
Furthermore, the terminal body is provided with a clamping part, the clamping part is provided with an inclined surface facing the free end of the elastic sheet and a clamping surface facing the other end of the elastic sheet and protruding out of the surface of the terminal body, and the clamping surface is perpendicular to the surface of the terminal body; the protective part is provided with a clamping opening clamped with the clamping part.
Furthermore, a U-shaped clamping groove is formed in the protection portion, a blocking portion is arranged on the terminal body, and the U-shaped clamping groove is matched with the blocking portion to restrain the protection portion from moving to the other end from the free end of the elastic sheet.
Still further the terminal body further includes a connection end, the connection end is connected with a cable.
Furthermore, a support body is injected in the terminal body.
Further, the shield portion has an axial opening.
Further, the sum of the surface areas of the open pores is 55-96% of the surface area of the protection part.
Furthermore, the terminal body is provided with a mounting hole for mounting a temperature sensor.
Furthermore, the terminal body and the protection part are formed by cutting or punching or bending a plate material.
The utility model has the advantages that: the protection part can play a protective role in the elastic sheet of the terminal body. When the male terminal is inserted into the plugging cavity, the male terminal can be restrained by the protection part and can be just inserted into the plugging cavity, and deformation of a certain elastic sheet due to overlarge stress is avoided. The protection part can also play holistic supporting role to the flexure strip, prevents that other devices from to the extrusion of flexure strip and making its deformation. When the elastic sheet is extruded by the male terminal from inside to outside, the elastic sheet can be opened through the opening to complete the insertion of the male terminal. The support body can support the terminal body in the terminal body to prevent the terminal body from deforming. The bayonet point and the bayonet are matched to enable the protection part to be fixed on the terminal body.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a terminal with a protection function according to the present invention.
Fig. 2 is a schematic view of a terminal body of the terminal with protection function of the present invention.
Fig. 3 is a schematic view of a protection portion of a terminal having a protection function according to the present invention.
Fig. 4 is a schematic diagram of a connection end of a terminal with protection function according to the present invention.
Fig. 5 is a schematic view of the supporting body of the terminal with protection function of the present invention.
Fig. 6 is a schematic view of an opening of a terminal with a protection function according to the present invention.
The figures are labeled as follows:
1-terminal body, 2-protective part, 3-support body, 11-elastic sheet, 12-clamping point, 13-clamping part, 14-blocking part, 15-connecting end, 16-mounting hole, 21-hole, 22-bayonet, 23-clamping port, 24-U-shaped clamping groove and 25-opening.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
A terminal having a protection function, as shown in fig. 1 to 6, includes a terminal body 1 and a protector 2; the terminal body 1 comprises an elastic sheet 11 and an insertion cavity surrounded by the elastic sheet 11; the protection part 2 is sleeved on the terminal body 1, and the protection part 2 is provided with an opening 21 capable of accommodating the elastic sheet to pass through in the radial direction; the openings 21 correspond to the elastic pieces 11 one by one. Taking the terminal body 1 to be arranged in the charging seat as an example, when the male terminal on the charging gun is inserted into the plug-in cavity enclosed by the elastic sheet 11 of the terminal body 1, the male terminal can extrude the elastic sheet 11 from inside to outside, so that the elastic sheet 11 is opened to realize interference fit. In actual use, the elastic sheet is easily extruded by surrounding equipment to deform. During plugging, the male terminal is not inserted into the plugging cavity, and an additional plugging force is applied to one of the elastic sheets 11 to deform the elastic sheet. The deformed elastic piece 11 is more likely to wear the plating layer during repeated insertion and extraction of the male terminal. When the plating layer is worn and the material of the terminal body 1 is exposed, the resistance of the terminal body 1 is increased, the conductivity is reduced, and the charging efficiency is seriously affected. After the protection part 2 is installed, the protection part 2 can protect the elastic piece 11. Protection part 2 cup joints on terminal body 1, and public end terminal can receive the restraint of 2 tip of protection part when inserting the grafting chamber, can just insert to the grafting chamber. The protective part 2 can also support the elastic sheet 11 integrally, and prevent other devices from extruding the elastic sheet. The opening 21 of the protection part 2 is larger than the elastic sheet 11, when the elastic sheet 11 is squeezed by the male terminal from inside to outside, the elastic sheet 11 can be opened through the opening 21, and the male terminal is plugged.
In some embodiments, the inner diameter of the plug cavity decreases towards the free end of the elastic piece 11. The aperture of the plug cavity on one side of the free end of the elastic sheet 11 is the smallest, so that the male terminal can be inserted into the plug cavity, the elastic sheet 11 has a larger deformation space, and the male terminal has a larger gripping force after being inserted.
In some embodiments, the terminal body 1 is provided with a fastening point 12 protruding from the surface of the terminal body 1, the protecting part 2 is provided with a fastening opening 22, and the protecting part 2 and the terminal body 1 are fastened together through the fastening opening 22 and the fastening point 12. As shown in fig. 2 and 3, the bayonet 22 is engaged with the engagement point 12, so that the protection portion 2 is fixed to the terminal body 1. An axial crack can be arranged on the protection part 2 to facilitate the slight deformation of the protection part 2 and the insertion on the clamping point 12.
In some embodiments, the terminal body 1 is provided with a holding portion 13, the holding portion 13 has an inclined surface facing the free end of the elastic piece 11 and a clamping surface facing the other end of the elastic piece 11 and protruding out of the surface of the terminal body 1, and the clamping surface is perpendicular to the surface of the terminal body 1; the protective part 2 is provided with a clamping opening 23 clamped with the clamping part 13. The clamping opening 23 is clamped with the clamping part 13 along the inclined surface, and after clamping, the clamping surface limits the clamping opening 23 to be separated, so that clamping is completed.
Further, a U-shaped clamping groove 24 is formed in the protection portion 2, a blocking portion 14 is formed in the terminal body 1, and the U-shaped clamping groove 24 is matched with the blocking portion 14 to restrain the protection portion 2 from moving from the free end of the elastic piece 11 to the other end of the elastic piece. As shown in fig. 3, the clamping surface of the clamping portion 13 can only block the movement of the protection portion 2 in one direction in the axial direction, and the U-shaped clamping groove and the blocking portion 14 can cooperate to block the movement of the protection portion 2 in the other direction in the axial direction.
In some embodiments, the terminal body 1 further comprises a connection end 15, the connection end 15 being connected with a cable. As shown in fig. 4, the connection terminal 15 is connected to a cable to transmit power and signals. The cross-sectional shape of the connecting end 15 is circular, oval, open ring, U-shaped, flat plate, or polygonal, and different cross-sectional shapes can be selected according to the cross-sectional shape of the cable or the corresponding connection mode. The connection of the connection end 15 and the cable can be performed by crimping or welding, the crimping is performed by mechanical deformation, pressure is applied to deform the connection end 15 and a part of the cable inside the connection end, and the cable and the inside of the connection end 15 are in full contact and are connected together by friction. The welding modes comprise ultrasonic welding, resistance welding, arc welding, pressure welding, electromagnetic welding, laser welding and the like, and the connecting end 15 and part of cables are welded together to realize stable electrical performance and mechanical performance.
In some embodiments, the terminal body 1 is injection molded with a support body 3. As shown in fig. 5, the support body 3 may be formed by injection molding into the terminal body 1, and may support the terminal body 1 to prevent deformation thereof.
In some embodiments, the shield 2 has an axial opening 25. As shown in fig. 6, the opening 25 provides tension to the protector 2, facilitating the sheathing of the protector 2 on the terminal body.
In some embodiments, the sum of the surface areas of the openings 21 is 55% to 96% of the surface area of the shield part 2. If the ratio of the surface area of the opening 21 is too small, the elastic piece 11 cannot sufficiently extend out of the opening 21, and if the sum of the surface areas of the openings 21 is too large, the surface area of the protection part 2 is too large, which may cause insufficient rigidity and insufficient supporting force of the protection part, and thus, the terminal body 1 cannot be sufficiently protected. In order to find a suitable ratio of the sum of the surface areas of the openings 21 to the surface area of the protection part 2, the inventor carried out a relevant test by selecting the same terminal body 1 and different protection parts 2, and inserting the male terminal into the terminal body 1 if the sum of the surface areas of the protection parts 2 is different, and if the protection parts do not affect the spreading of the elastic sheet 11, the test is qualified. Further, the guard 2 was placed horizontally, the guard 2 was pressed with a force of 80N, and if the guard 2 was deformed, it was determined to be defective, and the results are shown in table 1.
Table 1: the influence of the elastic sheet and the protector on the ratio of the sum of the surface areas of the openings 21 to the surface area of the protector 2
As shown in table 1, when the ratio of the sum of the surface areas of the openings 21 to the surface area of the protector 2 is less than 55%, the openings 21 will block the spreading of the elastic sheet because they are not wide enough. When the ratio of the sum of the surface areas of the openings 21 to the surface area of the protector 2 is greater than 96%, the strength of the protector 2 cannot be ensured, and the protector deforms under a pressure of 80N, which inevitably further affects the normal operation of the terminal body 1 in actual use, and therefore, the inventors prefer that the sum of the surface areas of the openings 21 is 55% to 96% of the surface area of the protector 2.
In some embodiments, the terminal body 1 is provided with a mounting hole 16 for mounting a temperature sensor. As shown in fig. 4, the temperature sensor is interference fitted with the mounting hole 16. Or the outer wall of the temperature sensor is provided with external threads, the mounting hole 16 is provided with internal threads, and the temperature sensor is in threaded connection with the mounting hole 16. The temperature sensor may be installed and then connected to the transmission cable. The temperature sensor is externally provided with a shielding layer, so that the interference of an external magnetic field to the temperature sensor can be shielded, the stability and undistortion of signals transmitted by the temperature sensor are ensured, and the accuracy of data is ensured. The temperature sensor is an NTC temperature sensor or a PTC temperature sensor. The two temperature sensors have the advantages of small volume and capability of measuring gaps which cannot be measured by other thermometers; the use is convenient, and the resistance value can be randomly selected from 0.1-100 k omega; the cable connector is easy to process into a complex shape, can be produced in large batch, has good stability and strong overload capacity, and is suitable for a product with small requirement on volume and stable performance, such as an adapter.
In some embodiments, the terminal body 1 and the protective part 2 are cut or stamped or bent from a plate material. The base material of the terminal body 1 is sheet-shaped, the processing mode of stamping or cutting or bending of the plate is simple, the process is mature, the terminal body 1 can be rapidly processed in large batch with the protection part 2, the processing cost is saved, and the production efficiency is improved.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (11)
1. A terminal with a protection function, characterized in that: comprises a terminal body (1) and a protection part (2);
the terminal body (1) comprises an elastic sheet (11) and an insertion cavity surrounded by the elastic sheet (11);
the protective part (2) is sleeved on the terminal body (1), and the protective part (2) is provided with an opening (21) capable of accommodating the elastic sheet to pass through in the radial direction;
the open holes (21) correspond to the elastic sheets (11) one by one.
2. A terminal having a protection function according to claim 1, characterized in that: the inner diameter of the plug cavity is gradually reduced towards the direction close to the free end of the elastic sheet (11).
3. A terminal having a protection function according to claim 1, characterized in that: be provided with on terminal body (1) protrusion in click (12) on terminal body (1) surface, be provided with bayonet socket (22) on protection portion (2), protection portion (2) with terminal body (1) passes through bayonet socket (22) and click (12) joint.
4. A terminal having a protection function according to claim 1, wherein: the terminal body (1) is provided with a clamping part (13), the clamping part (13) is provided with an inclined surface facing the free end of the elastic sheet (11) and a clamping surface facing the other end of the elastic sheet (11) and protruding out of the surface of the terminal body (1), and the clamping surface is vertical to the surface of the terminal body (1); the protection part (2) is provided with a clamping opening (23) which is connected with the clamping part (13) in a clamping manner.
5. A terminal having a protection function according to claim 4, characterized in that: be provided with U type draw-in groove (24) on protection portion (2), be provided with barrier part (14) on terminal body (1), U type draw-in groove (24) with barrier part (14) cooperation is in order to retrain protection portion (2) certainly flexure strip (11) free end moves to the other end.
6. A terminal having a protection function according to claim 1, characterized in that: the terminal body (1) further comprises a connecting end (15), and the connecting end (15) is connected with a cable.
7. A terminal having a protection function according to claim 1, characterized in that: the terminal body (1) is internally injected with a support body (3).
8. A terminal having a protection function according to claim 1, characterized in that: the shield (2) has an axial opening (25).
9. A terminal having a protection function according to claim 1, characterized in that: the sum of the surface areas of the open pores (21) is 55-96% of the surface area of the protection part (2).
10. A terminal having a protection function according to claim 1, characterized in that: the terminal body (1) is provided with a mounting hole (16) for mounting a temperature sensor.
11. A terminal having a protection function according to claim 1, characterized in that: the terminal body (1) and the protection part (2) are formed by cutting or punching or bending a plate material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220385846.1U CN217215186U (en) | 2022-02-24 | 2022-02-24 | Terminal with protection function |
| PCT/CN2023/076689 WO2023160466A1 (en) | 2022-02-24 | 2023-02-17 | Terminal having protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220385846.1U CN217215186U (en) | 2022-02-24 | 2022-02-24 | Terminal with protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217215186U true CN217215186U (en) | 2022-08-16 |
Family
ID=82799014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220385846.1U Active CN217215186U (en) | 2022-02-24 | 2022-02-24 | Terminal with protection function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217215186U (en) |
| WO (1) | WO2023160466A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023160466A1 (en) * | 2022-02-24 | 2023-08-31 | 长春捷翼汽车科技股份有限公司 | Terminal having protection function |
| CN116960669A (en) * | 2023-06-09 | 2023-10-27 | 武汉德泰纳新能源技术有限公司 | New energy automobile charging seat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3421976B2 (en) * | 1996-03-21 | 2003-06-30 | 矢崎総業株式会社 | Female terminal |
| CN107394445B (en) * | 2017-08-29 | 2023-08-08 | 实盈电子(东莞)有限公司 | Conductive connecting piece for charging gun |
| CN108616004A (en) * | 2018-04-27 | 2018-10-02 | 东莞市精端精密五金制品有限公司 | A kind of bonder terminal |
| CN212848860U (en) * | 2020-09-21 | 2021-03-30 | 安波福中央电气（上海）有限公司 | Novel female terminal for direct current and alternating current charging gun |
| CN217215186U (en) * | 2022-02-24 | 2022-08-16 | 长春捷翼汽车零部件有限公司 | Terminal with protection function |
-
2022
- 2022-02-24 CN CN202220385846.1U patent/CN217215186U/en active Active
-
2023
- 2023-02-17 WO PCT/CN2023/076689 patent/WO2023160466A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023160466A1 (en) * | 2022-02-24 | 2023-08-31 | 长春捷翼汽车科技股份有限公司 | Terminal having protection function |
| CN116960669A (en) * | 2023-06-09 | 2023-10-27 | 武汉德泰纳新能源技术有限公司 | New energy automobile charging seat |
| CN116960669B (en) * | 2023-06-09 | 2024-05-17 | 武汉德泰纳新能源技术有限公司 | New energy automobile charging seat |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023160466A1 (en) | 2023-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 957, Shunda Road, Gaoxin District, Changchun City, Jilin Province, 130000 Patentee after: Changchun Jieyi Automobile Technology Co.,Ltd. Address before: 130000 957 Shunda Road, Changchun hi tech Development Zone, Jilin Patentee before: CHANGCHUN JIEYI AUTO PARTS CO.,LTD. |
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| CP03 | Change of name, title or address |