Charging gun and charging system

Abstract

The utility model provides a charging gun and a charging system, and belongs to the technical field of charging equipment. The charging gun comprises a shell and a wiring assembly. The wiring assembly comprises a terminal, a cable and a sealing element, the terminal is connected with the cable, and the sealing element sleeves the joint of the terminal and the cable. The shell comprises an insertion cavity and a clamping cylinder, and one end of the clamping cylinder communicates with the insertion cavity. The clamping cylinder comprises a plurality of buckles arranged in the circumferential direction, and the multiple buckles are separated at the end away from the inserting cavity. The terminal extends into the plugging cavity, and the sealing member is clamped in the clamping cylinder. When the wiring assembly is assembled, the plurality of buckles deform under the extrusion of the sealing member, so that the diameter of the clamping cylinder is increased, and the sealing member enters the clamping cylinder. And then, the sealing element is limited in the clamping cylinder, so that the wiring assembly is fixed. Therefore, the wiring assembly does not need to be fixed by using other parts, so that the assembly process is relatively simple. In addition, the sealing member can prevent water or other impurities from entering the joint of the terminal and the cable.

Description

Technical Field

[0001] The present disclosure relates to the technical field of charging equipment, and in particular to a charging gun and a charging system. Background Art

[0002] The charging gun is used to electrically connect to an electrical device (such as an electric car) and a charging pile, so that the electrical device can draw power from the charging pile through the charging gun.

[0003] In the related art, the charging gun includes a housing and a wiring assembly, which extends into a plug-in cavity of the housing. The wiring assembly needs to be fixed in the plug-in cavity by a fixing plate, which makes the assembly process of the wiring assembly more complicated. Utility Model Content

[0004] The present disclosure provides a charging gun and a charging gun, which can solve the technical problems existing in the related art. The charging gun and the technical solutions of the charging gun are as follows.

[0005] In a first aspect, the present disclosure provides a charging gun, comprising a housing and a wiring assembly;

[0006] The wiring assembly includes a terminal, a cable and a sealing member, wherein the terminal is connected to the cable, and the sealing member is encircled at the connection between the terminal and the cable;

[0007] The housing includes an inserting cavity and a clamping sleeve, one end of the clamping sleeve is connected to the inserting cavity, and the clamping sleeve includes a plurality of buckles arranged along the circumference, and the plurality of buckles are separated at one end away from the inserting cavity;

[0008] The terminal extends into the plug-in cavity, and the sealing member is clamped in the clamping cylinder.

[0009] In a possible implementation, the inner wall of the buckle includes a snap-fit ​​protrusion;

[0010] One end of the sealing member away from the inserting cavity comprises an annular protrusion, and the annular protrusion abuts against the clamping protrusion.

[0011] In a possible implementation, the annular protrusion has a first guide surface;

[0012] The outer diameter of the first guide surface gradually increases in a direction away from the inserting cavity.

[0013] In a possible implementation, the engaging protrusion has a second guide surface;

[0014] Along the direction approaching the inserting cavity, the distance between the second guide surface and the axis of the clamping cylinder gradually decreases.

[0015] In a possible implementation, a bottom plate is provided between the clamping cylinder and the inserting cavity, and the bottom plate includes a communication hole, through which the inserting cavity and the clamping cylinder are connected;

[0016] One end of the sealing member abuts against the buckle, and the other end abuts against the bottom plate.

[0017] In a possible implementation, the communicating hole includes a first hole segment and a second hole segment, the first hole segment is close to the clamping cylinder, and the second hole segment is close to the inserting cavity;

[0018] The aperture of the first hole segment is larger than that of the second hole segment. An annular step is formed between the first hole segment and the second hole segment, and the sealing member abuts against the annular step.

[0019] In a possible implementation manner, an outer wall of the sealing element cooperates with the first hole segment.

[0020] In a possible implementation, the shell further includes a surrounding plate, which is connected to the bottom plate and surrounds the clamping cylinder.

[0021] In a possible implementation, the sealing component is an injection molded component.

[0022] In a possible implementation, the terminal includes an inserting section and a wiring section, the outer diameter of the inserting section is larger than the outer diameter of the wiring section, and the wiring section has an inserting hole;

[0023] The cable includes a first section and a second section, the diameter of the first section is smaller than the diameter of the second section, and the second section is located in the jack.

[0024] In a possible implementation, a diameter of an outer wall of the first through hole is larger than an outer diameter of the plug-in section.

[0025] In a second aspect, the present disclosure provides a charging system, comprising a charging gun as described in any one of the first aspects.

[0026] The technical solution provided by the present disclosure includes at least the following beneficial effects:

[0027] The present disclosure provides a charging gun. When assembling a terminal assembly, the seal compresses and deforms multiple clips, increasing the diameter of the clamping barrel, allowing the seal to enter the barrel. The seal is then trapped within the barrel, securing the terminal assembly. This eliminates the need for additional components to secure the terminal assembly, simplifying the assembly process. Furthermore, the seal prevents water and other impurities from entering the connection between the terminal and the cable.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure. In the drawings:

[0030] Figure 1 1 is a schematic structural diagram of a charging gun shown in an embodiment of the present disclosure;

[0031] Figure 2 1 is a schematic structural diagram of a charging gun shown in an embodiment of the present disclosure;

[0032] Figure 3 is an exploded view of a charging gun shown in an embodiment of the present disclosure;

[0033] Figure 4 is a cross-sectional view of a charging gun shown in an embodiment of the present disclosure;

[0034] Figure 5 is a structural schematic diagram of a wiring assembly shown in an embodiment of the present disclosure;

[0035] Figure 6 is a cross-sectional view of a housing shown in an embodiment of the present disclosure;

[0036] Figure 7 is a cross-sectional view of a charging gun shown in an embodiment of the present disclosure;

[0037] Figure 8 FIG. 4 is an exploded view of a wiring assembly shown in an embodiment of the present disclosure.

[0038] Legend:

[0039] 1. Housing, 10. Insertion cavity, 11. Snap-fitting cylinder, 111. Buckle, 1111. Snap-fitting protrusion, 1111a. Second guide surface, 12. Enclosure, 101. Bottom plate, 1011. Communication hole, 1011a. First hole segment, 1011b. Second hole segment, 1011c. Annular step;

[0040] 2. Wiring assembly, 21. Terminal, 210. Jack, 211. Connecting section, 212. Wiring section, 22. Cable, 221. First section, 222. Second section, 23. Sealing member, 231. Annular protrusion, 231a. First guide surface;

[0041] A. Axis.

[0042] The above drawings illustrate specific embodiments of the present disclosure, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the present disclosure in any way, but rather to illustrate the concepts of the present disclosure to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0044] The terms used in the embodiments of the present disclosure are intended only to explain the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, technical or scientific terms used herein should have the same ordinary meaning as those of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," "third," and similar terms used in the patent specification and claims of the present disclosure do not denote any order, quantity, or importance, but are merely used to distinguish between different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising," and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the described objects changes, the relative positional relationships may also change accordingly.

[0045] The charging gun is used to electrically connect to an electrical device (such as an electric car) and a charging pile, so that the electrical device can be charged by drawing power from the charging pile through the charging gun.

[0046] In the related art, the charging gun includes a housing and a wiring assembly, which extends into a plug-in cavity of the housing. The wiring assembly needs to be fixed in the plug-in cavity by a fixing plate, which makes the assembly of the wiring assembly more complicated.

[0047] In view of the above technical problems, the present disclosure provides a charging gun, such as Figures 1-4As shown (only part of the structure of the charging gun is shown in the accompanying drawings), the charging gun includes a shell 1 and a wiring assembly 2. The wiring assembly 2 includes a terminal 21, a cable 22 and a seal 23. The terminal 21 is connected to the cable 22, and the seal 23 is ring-shaped at the connection between the terminal 21 and the cable 22. The shell 1 includes a plug-in cavity 10 and a clamping cylinder 11. One end of the clamping cylinder 11 is connected to the plug-in cavity 10. The clamping cylinder 11 includes a plurality of buckles 111 arranged along the circumferential direction, and the plurality of buckles 111 are separated at one end away from the plug-in cavity 10. The terminal 21 extends into the plug-in cavity 10, and the seal 23 is clamped in the clamping cylinder 11.

[0048] The charging gun includes multiple wiring assemblies 2 and multiple plug-in cavities 10, and the terminals 21 of each wiring assembly 2 are respectively located in one plug-in cavity 10. The multiple terminals 21 include L terminals, N terminals, PE terminals and spare terminals.

[0049] The axes of the terminal 21 , the cable 22 and the seal 23 coincide with each other. The seal 23 can be made of plastic. The minimum outer diameter of the seal 23 is greater than the maximum outer diameter of the terminal 21 and the maximum outer diameter of the cable 22 .

[0050] The clamping cylinder 11 can be regarded as an annular cylinder, the side wall of which has a plurality of gaps extending in the axial direction, and the plurality of gaps are arranged in the circumferential direction, thereby forming a plurality of buckles 111 .

[0051] The technical solution provided by the disclosed embodiments allows for the assembly of the terminal block 2 to be performed by squeezing the multiple clips 111 under the pressure of the seal 23, causing the diameter of the clamping barrel 11 to increase, allowing the seal 23 to enter the clamping barrel 11. The seal 23 is then retained within the clamping barrel 11, securing the terminal block 2. This eliminates the need for additional components to secure the terminal block 2, simplifying the assembly process. Furthermore, the seal 23 prevents water and other impurities from entering the connection between the terminal 21 and the cable 22.

[0052] In some examples, such as Figure 4 As shown, the inner wall of the buckle 111 includes a snap-on protrusion 1111. The end of the seal 23 facing away from the insertion cavity 10 includes an annular protrusion 231, which abuts against the snap-on protrusion 1111. This increases the snap-on area between the seal 23 and the snap-on protrusion 1111, thereby increasing the connection strength between the face seal 23 and the snap-on protrusion 1111, and thus preventing the terminal assembly 2 from falling off the housing 1.

[0053] The buckle 111 is strip-shaped. When the seal 23 passes over the engaging protrusion 1111, the buckle 111 is squeezed by the seal 23 and deforms, causing the engaging protrusion 1111 to bend in a direction away from the axis A of the engaging cylinder 11. This increases the distance between the multiple engaging protrusions 1111, allowing the seal 23 to pass through the engaging protrusions 1111 smoothly.

[0054] In other examples, the buckle 111 may have a snap-fitting groove on its interior, the annular protrusion 231 is snap-fitted with the snap-fitting groove, and the annular protrusion 231 is confined in the snap-fitting groove, thereby achieving axial limitation of the wiring assembly 2 .

[0055] In some examples, such as Figure 5 As shown, the annular protrusion 231 has a first guide surface 231a. The outer diameter of the first guide surface 231a gradually increases as it moves away from the insertion cavity 10. Thus, when installing the terminal block 2, the first guide surface 231a compresses the radial distance between the multiple engaging protrusions 1111, gradually increasing the radial distance between the engaging protrusions 1111. This facilitates the annular protrusion 231 to quickly pass through the engaging protrusions 1111.

[0056] Similarly, in some examples, such as Figure 6 As shown, the engaging protrusion 1111 has a second guide surface 1111a. As it approaches the insertion cavity 10, the distance between the second guide surface 1111a and the axis A of the engaging cylinder 11 gradually decreases. Thus, when assembling the wiring assembly 2, the second guide surface 1111a guides the annular protrusion 231 of the sealing member 23, allowing the sealing member 23 to quickly pass through the engaging protrusion 112.

[0057] Among them, the maximum distance between the second guide surface 1111a and the axis A of the clamping tube 11 is greater than the radius of the seal 23. After the seal 23 and the second guide surface 1111a are pressed against each other, the radial distance between the multiple clamping protrusions 1111 will gradually increase under the extrusion of the seal 23, which is conducive to the annular protrusion 231 to quickly pass through the clamping protrusion 1111.

[0058] In some examples, such as Figure 7 As shown, a base plate 101 is provided between the clamping cylinder 11 and the plug-in cavity 10. The base plate 101 includes a connecting hole 1011, and the plug-in cavity 10 and the clamping cylinder 11 are connected through the connecting hole 1011. One end of the seal 23 abuts against the buckle 111, and the other end abuts against the base plate 101. The base plate 101 can prevent the seal 23 from extending into the plug-in cavity 10, and the buckle 111 can make it difficult to move in a direction away from the plug-in cavity 10, so that the wiring assembly 2 is not easy to fall off from the housing 1. In this way, the terminal 21 will not produce axial movement when inserted into the charging pile. In this way, the stability of the wiring assembly 2 can be improved.

[0059] In some examples, as shown in Figure 7 The annular protrusion 231 of the sealing member 23 cooperates with the inner wall of the clamping cylinder 11, so as to avoid the annular protrusion 231 from shaking in the radial direction, and improve the stability of the sealing member 23.

[0060] In some examples, as shown in Figure 7 The communication hole 1011 includes a first hole section 1011a and a second hole section 1011b. The first hole section 1011a is close to the clamping cylinder 11, and the second hole section 1011b is close to the plug-in cavity 10. The hole diameter of the first hole section 1011a is larger than that of the second hole section 1011b, and an annular step 1011c is formed between the first hole section 1011a and the second hole section 1011b, and the sealing member 23 abuts against the annular step 1011c.

[0061] In some examples, as shown in Figure 7 The outer wall of the sealing member 23 cooperates with the first hole section 1011a. In this way, the end of the sealing member 23 away from the clamping cylinder 11 can be prevented from shaking in the radial direction, so as to further improve the stability of the sealing member 23.

[0062] In some examples, as shown in Figure 7 The shell 1 further includes a surrounding plate 12, which is connected to the bottom plate 101 and surrounds the clamping cylinder 11. The surrounding plate 12 can protect the clamping cylinder 11 from being collided by other components, and improve the connection stability of the clamping cylinder 11 and the sealing member 23.

[0063] In some examples, as shown in Figure 8 The terminal 21 includes a plug-in section 211 and a wiring section 212. The outer diameter of the plug-in section 211 is larger than that of the wiring section 212, and the wiring section 212 has the plug hole 210. The cable 22 includes a first section 221 and a second section 222, and the diameter of the first section 221 is smaller than that of the second section 222, and the second section 222 is located in the plug hole 210. The outer part of the second section 222 of the cable 22 has an insulating layer.

[0064] In some examples, the sealing member 23 is an injection molding member. After the terminal 21 and the cable 22 are crimped together, the terminal 21 and the cable 22 are placed in a mold, and then the sealing member 23 is obtained by injection molding. The crimping part of the terminal 21 and the cable 22 is wrapped by the sealing member 23, so that the protection performance of the crimping part can reach IP67. After the injection molding is completed, the sealing member 23, the terminal 21 and the cable 22 are limited to each other, and after the sealing member 23 is fixed in the shell 1, the whole wiring assembly 2 can be fixed in the shell 1, so as to improve the stability of the wiring assembly 2. The crimping part of the terminal 21 and the cable 22 is wrapped by the sealing member 23, so that the protection performance of the crimping part can reach IP67.

[0065] In other examples, the multiple sealing members 23 may be an integrated structure. The integrated structure formed by the multiple sealing members 23 can be regarded as a sealing plate, the outer edge of the sealing plate has a first buckle, and the inner wall of the enclosure 12 has a second buckle, and the sealing plate and the enclosure 12 are connected by the first buckle and the second buckle.

[0066] An embodiment of the present disclosure further provides a charging system, which includes the above-mentioned charging gun.

[0067] Among them, the charging system also includes a charging pile, and the charging gun can be plugged into the charging pile.

[0068] The above descriptions are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A charging gun, characterized in that: The charging gun comprises a housing (1) and a wiring assembly (2); The wiring assembly (2) comprises a terminal (21), a cable (22) and a sealing member (23), wherein the terminal (21) is connected to the cable (22), and the sealing member (23) is sleeved around the connection between the terminal (21) and the cable (22); The housing (1) comprises a plug-in cavity (10) and a clamping cylinder (11), one end of the clamping cylinder (11) is in communication with the plug-in cavity (10), the clamping cylinder (11) comprises a plurality of buckles (111) arranged along the circumference, and the plurality of buckles (111) are separated at an end away from the plug-in cavity (10); The terminal (21) extends into the plug-in cavity (10), and the sealing member (23) is clamped in the clamping cylinder (11).

2. The charging gun according to claim 1, characterized in that The inner wall of the buckle (111) includes a clamping protrusion (1111); One end of the sealing member (23) away from the plug-in cavity (10) comprises an annular protrusion (231), and the annular protrusion (231) abuts against the clamping protrusion (1111).

3. The charging gun according to claim 2, characterized in that: The annular protrusion (231) has a first guide surface (231a); The outer diameter of the first guide surface (231a) gradually increases in a direction away from the insertion cavity (10).

4. The charging gun according to any one of claims 2-3, characterized in that: The clamping protrusion (1111) has a second guide surface (1111a); Along the direction approaching the insertion cavity (10), the distance between the second guide surface (1111a) and the axis (A) of the clamping cylinder (11) gradually decreases.

5. The charging gun according to claim 1, characterized in that: A bottom plate (101) is provided between the clamping cylinder (11) and the inserting cavity (10), and the bottom plate (101) includes a communication hole (1011), and the inserting cavity (10) and the clamping cylinder (11) are communicated through the communication hole (1011); One end of the sealing member (23) abuts against the buckle (111), and the other end abuts against the bottom plate (101).

6. The charging gun according to claim 5, characterized in that: The communicating hole (1011) comprises a first hole section (1011a) and a second hole section (1011b), wherein the first hole section (1011a) is close to the clamping cylinder (11), and the second hole section (1011b) is close to the inserting cavity (10); The aperture of the first hole section (1011a) is larger than that of the second hole section (1011b), an annular step (1011c) is formed between the first hole section (1011a) and the second hole section (1011b), and the sealing member (23) abuts against the annular step (1011c).

7. The charging gun according to claim 6, characterized in that: The outer wall of the sealing member (23) cooperates with the first hole section (1011a).

8. The charging gun according to claim 5, characterized in that: The housing (1) further comprises a surrounding plate (12), wherein the surrounding plate (12) is connected to the bottom plate (101), and the surrounding plate (12) surrounds the clamping cylinder (11).

9. The charging gun according to claim 1, characterized in that: The sealing member (23) is an injection molded member.

10. A charging system, characterized in that: The charging system includes the charging gun according to any one of claims 1 to 9.

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