A charging gun convenient for fixing terminals

Abstract

The utility model discloses a kind of charging gun of terminal convenient to fix, including the shell with accommodating cavity, circuit module and wire harness being set in accommodating cavity and plug component being set in the shell front end. The plug component includes the socket being provided with several accommodating grooves, several terminals being set in accommodating groove, the terminal includes the shell includes the contact of accommodating groove inner wall No. 1 post and No. 2 post being set in No. 1 post close to the side of shell, the diameter of No. 2 post is less than the diameter of No. 1 post, step is formed between No. 1 post and No. 2 post, the shell includes shell body and the limiting protrusion being set on shell body for with step abut. Advantage: whole charging gun does not need to be additionally provided with pressing plate to fix terminal, both reduce the amount of material, and also save the assembly process of pressing plate and shell, to save cost, improve efficiency, reduce the weight of charging gun.

Description

Technical Field

[0001] This utility model relates to the field of charging guns, specifically a charging gun that facilitates fixing terminals. Background Technology

[0002] Currently, the terminals of charging guns require a special pressure plate to assemble with them before the pressure plate is assembled with the housing. Finally, the charging head is aligned with the terminals and assembled with the housing. This design results in numerous assembly steps, preventing direct assembly of the terminals and housing. Furthermore, the presence of the pressure plate increases the material usage and weight of the entire charging gun.

[0003] For example, Chinese patent CN116766978A discloses a gun head mechanism and a charging gun. The gun head mechanism includes a gun housing with a mounting cavity and a cooling assembly and a terminal assembly disposed within the mounting cavity. The cooling assembly includes a cooling shell and a cooling pipe. The cooling shell has a communicating heat-conducting cavity and a sealing cavity. One end of the cooling pipe is disposed within the heat-conducting cavity, and the other end of the cooling pipe extends out of the cooling shell through the sealing cavity. The terminal assembly is disposed on the periphery of the cooling shell. The heat-conducting cavity is used to inject thermally conductive adhesive, and the sealing cavity is used to inject a sealing medium to fix the cooling pipe and the cooling shell. Paragraph 0077 of the specification of this patent states that "the gun head mechanism 100 also includes a wiring plate 70 disposed within the mounting cavity 10A. The wiring plate 70 has an assembly groove 70A and a slot 70B communicating with the assembly groove 70A; the cooling shell 31 is detachably disposed within the assembly groove 70A, and the terminal assembly 50 is snapped into the slot 70B." This design requires the terminal assembly to be first assembled with a slotted wire guide plate (similar to a pressure plate) to position the terminals before assembling them with the charging gun housing. This not only increases the weight of the entire charging gun due to the wire guide plate, but also increases the number of operation steps and reduces assembly efficiency.

[0004] Therefore, it is necessary to provide a charging gun that facilitates fixing the terminals. Utility Model Content

[0005] This utility model provides a charging gun that facilitates terminal fixing, effectively solving the problem that existing charging guns require a special pressure plate to fix the terminals, resulting in cumbersome assembly and increased material usage.

[0006] The technical solution adopted by this utility model is: a charging gun for easy fixing of terminals, including a housing with a receiving cavity, a circuit module and wire harness disposed in the receiving cavity, and a plug component disposed at the front end of the housing. The plug component includes a socket with several receiving slots and several terminals disposed in the receiving slots. The terminals include a first post that contacts the inner wall of the receiving slot and a second post disposed on the side of the first post near the housing. The diameter of the second post is smaller than the diameter of the first post, and a step is formed between the first post and the second post. The housing includes a housing body and a limiting protrusion disposed on the housing body for abutting against the step.

[0007] Furthermore, the step is located within the receiving groove, the limiting protrusion extends into the receiving groove, the receiving groove includes a first groove for installing the first column and a second hole that is concentric with and communicates with the first groove, the diameter of the second hole is smaller than the diameter of the first groove, and the first column is provided with a slot corresponding to the second hole.

[0008] Furthermore, the shell body includes a first half shell, a second half shell, several first buckles disposed on the first half shell, and a first locking hole disposed on the second half shell for engaging with the first buckles. The first half shell and the second half shell are closed by engaging the first buckles with the first locking holes.

[0009] Furthermore, the second half-shell is provided with several positioning protrusions, and the first half-shell is provided with positioning grooves that correspond one-to-one with the several positioning protrusions.

[0010] Furthermore, the socket is provided with several No. 2 snap holes around its circumference, and the front end of the shell body is provided with several No. 2 buckles that cooperate with the No. 2 snap holes.

[0011] Furthermore, the cross-section of the limiting protrusion is semi-circular.

[0012] Furthermore, the charging gun that facilitates fixing the terminals also includes an injection-molded outer sleeve, the outer surface of the socket is provided with several annular grooves, the housing tapers away from the plug component, the housing and the annular grooves are both located inside the injection-molded sleeve, and the outer surface of the injection-molded sleeve is provided with several anti-slip grooves.

[0013] The beneficial effects of the utility model are that the entire charging gun does not require an additional pressure plate to fix the terminals, which reduces the amount of material used and eliminates the assembly process of the pressure plate and the housing, thereby saving costs, improving efficiency, and reducing the weight of the charging gun. Attached Figure Description

[0014] Figure 1 An exploded view of a charging gun for easy terminal fixing provided for an embodiment of this application.

[0015] Figure 2This is an overall schematic diagram of a charging gun for easy terminal fixing provided for an embodiment of this application.

[0016] Figure 3 An exploded view of a charging gun with an injection-molded outer casing that facilitates fixing terminals, provided for an embodiment of this application.

[0017] The markings in the diagram are as follows: 1. Housing; 2. Socket; 3. Terminal; 31. Post No. 1; 32. Post No. 2; 301. Step; 11. Housing body; 12. Limiting protrusion; 201. Hole No. 2; 202. Receiving groove; 111. Half-shell No. 1; 112. Half-shell No. 2; 113. Inverted buckle No. 1; 114. Locking hole No. 1; 115. Positioning protrusion; 203. Locking hole No. 2; 13. Inverted buckle No. 2; 4. Injection molded outer sleeve; 41. Anti-slip groove. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 and Figure 3 As shown, an embodiment of this application provides a charging gun for easy fixing of terminals 3. Its structure includes a housing 1 with a receiving cavity, a circuit module and wiring harness disposed within the receiving cavity, and a plug component disposed at the front end of the housing 1. The plug component includes a socket 2 with several receiving slots 202 and several terminals 3 disposed within the receiving slots 202. Each terminal 3 includes a first post 31 that contacts the inner wall of the receiving slot 202 and a second post 32 disposed on the side of the first post 31 near the housing 1. The diameter of the second post 32 is smaller than the diameter of the first post 31. A step 301 is formed between the first post 31 and the second post 32. The housing 1 includes a housing body 11 and a limiting protrusion 12 disposed on the housing body 11 for abutting against the step 301.

[0020] During actual assembly, terminal 3 is placed on socket 2, and socket 2 is assembled with housing 1. During assembly, the limiting protrusion 12 abuts against step 301, so that terminal 3 remains fixed.

[0021] In the above design, the entire charging gun does not require an additional pressure plate to fix the terminal 3, which reduces the amount of material used (by eliminating the pressure plate) and eliminates the assembly process between the pressure plate and the housing 1, thereby saving costs, improving efficiency, and reducing the weight of the charging gun.

[0022] Specifically: the step 301 is located within the receiving groove 202, and the limiting protrusion 12 extends into the receiving groove 202, such as... Figure 1 and Figure 3As shown, the receiving groove 202 includes a first groove for installing a first post 31 and a second hole 201 that is connected to and concentric with the first groove. The diameter of the second hole 201 is smaller than the diameter of the first groove, and the first post 31 is provided with a slot corresponding to the second hole 201.

[0023] During actual assembly, after terminal 3 is assembled with the housing, the protruding end is located within the receiving groove 202 to fix step 301. During charging, current is transmitted through the interaction between the conductive head built into the new energy vehicle and the slot.

[0024] In the above design, the step 301 extending into the receiving groove 202 can ensure that the entire first column 31 is located in the receiving groove 202, avoiding the shaking caused by the first column 31 extending out of the receiving groove 202.

[0025] Specifically: such as Figure 1 and Figure 3 As shown, the shell body 11 includes a first half shell 111, a second half shell 112, a plurality of first buckles 113 disposed on the first half shell 111, and first locking holes 114 disposed on the second half shell 112 for engaging with the first buckles 113. The first half shell 111 and the second half shell 112 are closed by engaging the first buckles 113 with the first locking holes 114.

[0026] In actual assembly, the first half shell 111 and the second half shell 112 are first connected by the engagement of the first buckle 113 and the first locking hole 114. Then the assembled shell body 11 is assembled with the socket 2. During the insertion assembly process, the terminal 3 installed in the receiving groove 202 contacts the limiting protrusion 12 on the shell body 11 to limit the terminal 3.

[0027] In the above design, the structural design and specific implementation of the shell body 11 facilitate the rapid assembly of the shell 1.

[0028] Specifically: such as Figure 1 As shown, the second half-shell 112 is also provided with a number of positioning protrusions 115, and the first half-shell 111 is provided with positioning grooves that correspond one-to-one with the number of positioning protrusions 115.

[0029] During actual assembly, the positioning protrusion 115 extends into the positioning groove to ensure the assembly accuracy of the first half shell 111 and the second half shell 112.

[0030] In the above design, the positioning protrusion 115 and the positioning groove can play a positioning and guiding role when the first half shell 111 and the second half shell 112 are assembled.

[0031] Specifically: such as Figure 3As shown, the socket 2 is provided with a plurality of second-order snap holes 203 in the circumferential direction, and the front end of the shell body 11 is provided with a plurality of second-order buckles 13 that cooperate with the second-order snap holes 203.

[0032] During actual assembly, the plug component is connected to the housing 1 by the engagement of the second buckle on the socket 2 with the second inverted buckle 13 on the housing 1.

[0033] In the above design, the structural design and specific implementation of the second buckle 13 and the second card hole 203 facilitate the rapid assembly of the plug component and the housing 1.

[0034] Specifically: such as Figure 1 and Figure 3 As shown, the cross-section of the limiting protrusion 12 is semi-circular.

[0035] After actual assembly, column 32 is located on the concave side of the protrusion.

[0036] In the above design, the structural design and specific implementation of the limiting protrusion 12 can achieve a sufficiently large contact surface with the step 301, and will not rub against the second post 32 during the assembly process (by avoiding the second post 32 through the semi-circular concave surface).

[0037] Specifically: such as Figure 1 and Figure 2 As shown, the charging gun that facilitates fixing the terminal 3 also includes an injection-molded sleeve 4. The outer surface of the socket 2 is provided with several annular grooves. The housing 1 is tapered away from the plug component. The housing 1 and the annular grooves are both located inside the injection-molded sleeve. The outer surface of the injection-molded sleeve is provided with several anti-slip grooves 41.

[0038] During actual assembly, after the plug component and housing 1 are assembled, the injection-molded outer sleeve 4 is assembled with the plug component and housing 1, so that the injection-molded outer sleeve 4 covers the connection between the plug component and housing 1 and the surface of housing 1. During operation, the operator can hold the anti-slip groove 41 for operation.

[0039] In the above design, the injection-molded outer sleeve 4 covers the housing 1 and the plug component, thereby improving the waterproof performance of the entire charging gun.

[0040] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A charging gun for easy fixing of terminals, comprising a housing (1) having a receiving cavity, a circuit module and wiring harness disposed within the receiving cavity, and a plug component disposed at the front end of the housing (1), characterized in that: The plug component includes a socket (2) with a plurality of receiving slots (202) and a plurality of terminals (3) disposed in the receiving slots (202). The terminals (3) include a first post (31) in contact with the inner wall of the receiving slot (202) and a second post (32) disposed on the side of the first post (31) near the housing (1). The diameter of the second post (32) is smaller than the diameter of the first post (31). A step (301) is formed between the first post (31) and the second post (32). The housing (1) includes a housing body (11) and a limiting protrusion (12) disposed on the housing body (11) for abutting against the step (301).

2. The charging gun for easy terminal fixing according to claim 1, characterized in that: The step (301) is located in the receiving groove (202), the limiting protrusion (12) extends into the receiving groove (202), the receiving groove (202) includes a first groove for installing the first column (31) and a second hole (201) that is connected to and concentric with the first groove. The diameter of the second hole (201) is smaller than the diameter of the first groove, and the first column (31) is provided with a slot corresponding to the second hole (201).

3. The charging gun for easy terminal fixing according to claim 1, characterized in that: The shell body (11) includes a first half shell (111), a second half shell (112), a number of first buckles (113) disposed on the first half shell (111), and a first locking hole (114) disposed on the second half shell (112) for engaging with the first buckles (113). The first half shell (111) and the second half shell (112) are closed by engaging the first buckles (113) with the first locking holes (114).

4. The charging gun for easy terminal fixing according to claim 3, characterized in that: The second half-shell (112) is also provided with a number of positioning protrusions (115), and the first half-shell (111) is provided with positioning grooves that correspond one-to-one with the number of positioning protrusions (115).

5. The charging gun for easy terminal fixing according to claim 1, characterized in that: The socket (2) is provided with several second-order snap holes (203) around its circumference, and the front end of the shell body (11) is provided with several second-order buckles (13) that cooperate with the second-order snap holes (203).

6. The charging gun for easy terminal fixing according to claim 1, characterized in that: The limiting protrusion (12) has a semi-circular cross section.

7. The charging gun for easy terminal fixing according to claim 1, characterized in that: The charging gun that facilitates fixing the terminals also includes an injection-molded outer sleeve (4), the outer surface of the socket (2) is provided with several annular grooves, the housing (1) is contracted towards the end away from the plug component, the housing (1) and the annular grooves are both located inside the injection-molded sleeve, and the outer surface of the injection-molded sleeve is provided with several anti-slip grooves (41).

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