Electric connection structure of charging socket and charging socket

Abstract

The utility model discloses an electric connection structure of a charging socket and the charging socket, the electric connection structure comprises a circuit board and a cylindrical terminal, and the cylindrical terminal is inserted into a jack of the circuit board and is electrically connected with the circuit board; wherein the cylindrical terminal comprises a cylindrical body which is formed by integrally stamping and curling a plate-shaped material, the cylindrical body comprises a conduction section, the outer wall of the conduction section is provided with a plurality of elastic cantilevers which are arranged at intervals in the circumferential direction, and the elastic cantilevers extend in the direction of the central axis of the cylindrical body; the elastic cantilevers are provided with contact parts protruding out of the outer surface of the cylindrical body, and the multiple contact parts are in interference fit with the jacks so as to be electrically connected with the circuit board. According to the electric connection structure of the charging socket, the protruding contact parts of the elastic cantilevers of the cylindrical terminal are in interference fit with the jacks of the circuit board, the cylindrical terminal can be stably connected with the circuit board, the elastic cantilevers provide a plurality of signal detection points, and the stability of signal transmission is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of charging sockets, in particular to an electrical connection structure of a charging socket and a charging socket. Background Art

[0002] In existing new energy vehicle charging seats, the common terminal forming method is machining. The machined terminals are heavy, take a long time to process, and are costly. In addition, the existing means of signal transmission between the charging seat terminals and the circuit board is to install a number of springs in the form of patches around the jacks of the circuit board, and achieve electrical connection by contacting the terminals with the springs. This method requires an additional step to install the springs on the circuit board, and this spring has a short service life, is easy to deform, and has unreliable contact. Utility Model Content

[0003] On the one hand, an embodiment of the present disclosure provides an electrical connection structure of a charging socket, including:

[0004] Circuit boards; and

[0005] A cylindrical terminal, the cylindrical terminal is inserted into the insertion hole of the circuit board and is electrically connected to the circuit board;

[0006] Among them, the cylindrical terminal includes a cylindrical body formed by integrally stamping and curling a plate-like material, the cylindrical body includes a conducting section, the outer wall of the conducting section is provided with a plurality of circumferentially spaced elastic cantilevers, the elastic cantilevers extend along the central axis direction of the cylindrical body, the elastic cantilever has a contact portion protruding from the outer surface of the cylindrical body, and the plurality of contact portions are interference fit with the jack to be electrically connected to the circuit board.

[0007] Preferably, the elastic cantilever includes a first elastic portion connected to the conductive section, and a second elastic portion extending from the first elastic portion, and the contact portion is formed by the first elastic portion extending in a direction gradually away from the central axis and the second elastic portion extending in a direction gradually approaching the central axis.

[0008] Preferably, the end of the second elastic portion is the free end of the elastic cantilever, and the free end extends into the cylindrical body.

[0009] Preferably, a first angle at which the first elastic portion is inclined relative to the central axis is greater than a second angle at which the second elastic portion is inclined relative to the central axis.

[0010] Preferably, the inner peripheral surface of the insertion hole is coated with a conductive material.

[0011] Preferably, it also includes a mounting bracket, the mounting bracket is provided with a positioning cylinder for mounting the tubular terminal, the positioning cylinder is provided with an abutment step, the tubular terminal also includes a positioning section connected to one end of the conducting section, the outer wall of the positioning section is provided with a plurality of clamping arms protruding from the outer surface of the tubular body, and the free end of the clamping arm is clamped with the abutment step.

[0012] Preferably, a rear shell is further included, a positioning column is arranged on the inner side of the rear shell, and the end surface of the positioning column abuts against the end surface of the positioning section.

[0013] Preferably, the cylindrical terminal further comprises a transition section connected to the other end of the conducting section, and a plug-in section connected to the transition section, the plug-in section is used for plugging with the plug-in terminal, and a sealing member is provided on the transition section.

[0014] Preferably, the plug-in section has a plurality of plug-in spring sheets, and the plurality of plug-in spring sheets are arranged to form a plug-in cavity, and an axially extending spacing groove is arranged between adjacent plug-in spring sheets. An additional sleeve is arranged outside the plurality of plug-in spring sheets, and the front end of the additional sleeve includes at least two additional spring sheets, and the free end of the additional spring sheet abuts against the outer periphery of the free end of the plug-in spring sheet and at least covers the spacing groove.

[0015] On the other hand, an embodiment of the present invention provides a charging socket, comprising the electrical connection structure described in any of the above embodiments.

[0016] According to the electrical connection structure of the charging socket and the charging socket in this article, the cylindrical terminal is stamped and curled in one piece using a plate-like material, which has low cost, short processing time, and is suitable for mass production; in addition, the cylindrical terminal directly punches out a plurality of elastic cantilevers, and the elastic cantilever has a contact portion protruding from the outer surface of the cylindrical body of the cylindrical terminal, and the plurality of contact portions are interference fit with the socket of the circuit board to be electrically connected to the circuit board, thereby, the plurality of elastic cantilevers provide a plurality of signal detection points, while also ensuring the stability of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 Schematic diagram of the electrical connection structure of the charging socket of the preferred embodiment of this article.

[0019] Figure 2 This is an exploded perspective view of the cylindrical terminal.

[0020] Figure 3 This is a schematic diagram of a barrel terminal.

[0021] Figure 4 for Figure 1 A partial enlarged view of the electrical connection structure.

[0022] Figure 5 This is a schematic diagram of the charging socket in this article.

[0023] Figure 6 for Figure 5 Enlarged view of part A.

[0024] Description of reference numerals:

[0025] Circuit board 100 Barrel terminal 200

[0026] Positioning section 202 Transition section 203

[0027] Insertion section 204 Elastic cantilever 210

[0028] Contact portion 211 First elastic portion 212

[0029] The second elastic portion 213 has a first angle α

[0030] Second angle β Mounting bracket 300

[0031] Positioning cylinder 301 against step 302

[0032] Card arm 205 rear shell 400

[0033] Positioning column 401 Seal 500

[0034] Insertion spring 206 spacing groove 207

[0035] Additional sleeve 208 Additional spring piece 209

[0036] Conducting section 201 DETAILED DESCRIPTION

[0037] The preferred embodiments of the present disclosure are described below in conjunction with the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure. In addition, the embodiments and features in the embodiments of the present disclosure may be combined with each other if no conflict occurs.

[0038] like Figures 1 to 6 As shown, this article provides an electrical connection structure of a charging socket in a preferred embodiment, including:

[0039] A circuit board 100; and

[0040] A cylindrical terminal 200, which is inserted into the insertion hole of the circuit board 100 and is electrically connected to the circuit board 100;

[0041] The cylindrical terminal 200 comprises a cylindrical body formed by integrally stamping and curling a plate-like material, the cylindrical body comprising a conducting section 201, the outer wall of the conducting section 201 is provided with a plurality of circumferentially spaced elastic cantilevers 210, the elastic cantilevers 210 extending along the central axis direction of the cylindrical body, the elastic cantilever 210 having a contact portion 211 protruding from the outer surface of the cylindrical body, and the plurality of contact portions 211 are interference fit with the jack to be electrically connected to the circuit board 100.

[0042] Preferably, the interference amount of the interference fit between the contact portion 211 and the circuit board 100 may be between 0.3 mm and 0.4 mm.

[0043] Therefore, in the electrical connection structure of the charging socket, the cylindrical terminal 200 is formed by integrally stamping and curling a plate-like material, which has low cost, short processing time, and is suitable for mass production; in addition, the cylindrical terminal 200 directly stamps out a plurality of elastic cantilevers 210, and the elastic cantilever 210 has a contact portion 211 protruding from the outer surface of the cylindrical body of the cylindrical terminal 200, and the plurality of contact portions 211 are interference fit with the jack of the circuit board 100 to be electrically connected to the circuit board 100, thereby, the plurality of elastic cantilevers 210 provide a plurality of signal detection points, while also ensuring the stability of signal transmission.

[0044] Specifically, Figure 3 and Figure 4 As shown, the elastic cantilever 210 includes a first elastic portion 212 connected to the conductive section 201, and a second elastic portion 213 extending from the first elastic portion 212, and the contact portion 211 is formed by the first elastic portion 212 extending in a direction gradually away from the central axis and the second elastic portion 213 extending in a direction gradually approaching the central axis.

[0045] More specifically, the end of the second elastic portion 213 is the free end of the elastic cantilever 210, and the free end is extended into the cylindrical body. Therefore, since the free end has a certain expansion space, even if the charging socket is shaken by external force, the cylindrical terminal 200 can be buffered, and a stable electrical connection between the cylindrical terminal 200 and the circuit board 100 can still be ensured.

[0046] More specifically, if Figure 3As shown, the first angle α of the first elastic portion 212 relative to the central axis is greater than the second angle β of the second elastic portion 213 relative to the central axis. Thus, the contact portion 211 can be bent at a larger curvature and more fully contact the circuit board 100 to ensure the stability of the signal connection.

[0047] In some embodiments, the inner peripheral surface of the insertion hole is coated with a conductive material, so that the multiple contact portions 211 of the cylindrical terminal 200 are in contact with the conductive material, thereby forming an electrical connection with the circuit board 100. Specifically, the conductive material can be copper.

[0048] In some embodiments, Figure 5 and Figure 6 As shown, the electrical connection structure of the charging socket also includes a mounting bracket 300, and the mounting bracket 300 is provided with a positioning cylinder 301 for mounting the cylindrical terminal 200, and an abutment step 302 is provided in the positioning cylinder 301. The cylindrical terminal 200 also includes a positioning section 202 connected to one end of the conducting section 201, and the outer wall of the positioning section 202 is provided with a plurality of clamping arms 205 protruding from the outer surface of the cylindrical body, and the free end of the clamping arm 205 is clamped with the abutment step 302.

[0049] Furthermore, if Figure 5 and Figure 6 As shown, the electrical connection structure of the charging socket further includes a rear shell 400 , and a positioning column 401 is disposed inside the rear shell 400 , and the end surface of the positioning column 401 abuts against the end surface of the positioning section 202 .

[0050] Therefore, the positioning of the cylindrical terminal 200 is achieved by the clamping of the clamping arm 205 with the abutting step 302 on the one hand, and the abutting of the positioning column 401 with the positioning section 202 of the cylindrical terminal 200 on the other hand.

[0051] In some embodiments, Figure 2 As shown, the cylindrical terminal 200 further includes a transition section 203 connected to the other end of the conducting section 201, and a plug section 204 connected to the transition section 203, the plug section 204 is used for plugging with the plug terminal, and a seal 500 is provided on the transition section 203. Thus, the sealing between the cylindrical terminal 200 and the charging socket housing is achieved by the seal 500.

[0052] It can be further understood that the cylindrical terminal 200 is usually installed in the terminal mounting bracket of the charging socket. There is generally an axial gap between the cylindrical terminal 200 and the cylindrical terminal mounting bracket. In order to ensure the accuracy of the insertion between the cylindrical terminal 200 and the plug-in terminal, a plurality of protrusions can be integrally processed on the transition section 203 of the cylindrical terminal 200. The protrusions fill and fill the axial gap to avoid the shaking of the cylindrical terminal 200, so as to ensure the coaxiality of the cylindrical terminal 200 after insertion.

[0053] In some embodiments, the plug-in section 204 has a plurality of plug-in spring clips 206, and the plurality of plug-in spring clips 206 are arranged to form a plug-in cavity, and an axially extending spacing groove 207 is arranged between adjacent plug-in spring clips 206. An additional sleeve 208 is arranged on the outer sleeve of the plurality of plug-in spring clips 206, and the front end of the additional sleeve 208 includes at least two additional spring clips 209, and the free end of the additional spring clip 209 abuts against the outer periphery of the free end of the plug-in spring clip 206 and at least covers the spacing groove 207.

[0054] The plug-in section 204 has a plurality of plug-in springs 206, which are arranged to form a plug-in cavity, and an axially extending spacing groove 207 is arranged between adjacent plug-in springs 206, which can adapt to plug-in terminals of different sizes. By providing an additional sleeve 208, the interaction force between the plug-in section 204 and the plug-in terminal can be increased, ensuring the stability of the plug-in between the cylindrical terminal 200 and the plug-in terminal.

[0055] Another aspect of the present invention provides a charging socket, which includes the electrical connection structure described in any of the above embodiments. For the sake of brevity, no further description is given.

[0056] According to the electrical connection structure of the charging socket and the charging socket of this article, the cylindrical terminal 200 is made of a plate material that is stamped and curled in one piece, which has low cost, short processing time, and is suitable for mass production; in addition, the cylindrical terminal 200 directly punches out a plurality of elastic cantilevers 210, and the elastic cantilever 210 has a contact portion 211 protruding from the outer surface of the cylindrical body of the cylindrical terminal 200, and the plurality of contact portions 211 are interference fit with the socket of the circuit board 100 to be electrically connected to the circuit board 100, thereby, the plurality of elastic cantilevers 210 provide a plurality of signal detection points, while also ensuring the stability of signal transmission.

[0057] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0058] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0059] It should also be understood that in the embodiments of this article, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0060] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this article.

[0061] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0062] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of this article.

[0063] In addition, each functional unit in each embodiment of this invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

[0064] Specific embodiments are used in this article to illustrate the principles and implementation methods of this article. The description of the above embodiments is only used to help understand the methods and core ideas of this article. At the same time, for general technicians in this field, according to the ideas of this article, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on this article.

Claims

1. An electrical connection structure of a charging socket, characterized in that: include: Circuit boards; as well as A cylindrical terminal, the cylindrical terminal is inserted into the insertion hole of the circuit board and is electrically connected to the circuit board; Among them, the cylindrical terminal includes a cylindrical body formed by integrally stamping and curling a plate-like material, the cylindrical body includes a conducting section, the outer wall of the conducting section is provided with a plurality of circumferentially spaced elastic cantilevers, the elastic cantilevers extend along the central axis direction of the cylindrical body, the elastic cantilever has a contact portion protruding from the outer surface of the cylindrical body, and the plurality of contact portions are interference fit with the jack to be electrically connected to the circuit board.

2. The electrical connection structure of the charging socket according to claim 1, characterized in that: The elastic cantilever includes a first elastic portion connected to the conductive section, and a second elastic portion extending from the first elastic portion, and the contact portion is formed by the first elastic portion extending in a direction gradually away from the central axis and the second elastic portion extending in a direction gradually approaching the central axis.

3. The electrical connection structure of the charging socket according to claim 2, characterized in that: The end of the second elastic portion is the free end of the elastic cantilever, and the free end extends into the cylindrical body.

4. The electrical connection structure of the charging socket according to claim 2, characterized in that: A first angle at which the first elastic portion is inclined relative to the central axis is greater than a second angle at which the second elastic portion is inclined relative to the central axis.

5. The electrical connection structure of the charging socket according to claim 1, characterized in that: The inner peripheral surface of the insertion hole is coated with a conductive material.

6. The electrical connection structure of the charging socket according to claim 1, characterized in that: It also includes a mounting bracket, which is provided with a positioning cylinder for mounting the cylindrical terminal, and a supporting step is provided in the positioning cylinder. The cylindrical terminal also includes a positioning section connected to one end of the conducting section, and the outer wall of the positioning section is provided with a plurality of clamping arms protruding from the outer surface of the cylindrical body, and the free end of the clamping arm is clamped with the supporting step.

7. The electrical connection structure of the charging socket according to claim 6, characterized in that: It also includes a rear shell, the inner side of which is provided with a positioning column, and the end surface of the positioning column abuts against the end surface of the positioning section.

8. The electrical connection structure of the charging socket according to claim 6, characterized in that: The cylindrical terminal further comprises a transition section connected to the other end of the conducting section, and a plug-in section connected to the transition section, wherein the plug-in section is used for plugging with a plug-in terminal, and a sealing member is arranged on the transition section.

9. The electrical connection structure of the charging socket according to claim 8, characterized in that: The plug-in section has a plurality of plug-in spring sheets, which are arranged to form a plug-in cavity, and an axially extending spacing groove is arranged between adjacent plug-in spring sheets. An additional sleeve is arranged outside the plurality of plug-in spring sheets, and the front end of the additional sleeve includes at least two additional spring sheets, and the free end of the additional spring sheet abuts against the outer periphery of the free end of the plug-in spring sheet and at least covers the spacing groove.

10. A charging socket, characterized in that: The invention comprises an electrical connection structure according to any one of claims 1 to 9.

Images