Liquid cooling terminal of charging gun

Abstract

The invention belongs to the technical field of charging gun liquid cooling terminals, and particularly relates to a charging gun liquid cooling terminal which comprises a terminal body, a connecting assembly is arranged on one side of the terminal body, a liquid cooling assembly is arranged on one side of the connecting assembly, a quick connector is arranged on the terminal body, and a bolt is arranged on the terminal body. According to the invention, the problems that the oil tank does not participate in the connection process of the lead and the terminal and the occupied space structure of the oil tank is reduced are solved, and the crimping / welding terminal is ensured to be mounted in the oil tank after being connected, so that the product is more convenient to disassemble and repair, any part and the traditional terminal are not damaged, and the product quality is improved. As a lead is directly connected to an oil tank, a terminal and the oil tank are cut off together after each repair, materials are wasted, and assembly and disassembly are very inconvenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid-cooled terminals for charging guns, and in particular relates to a liquid-cooled terminal for charging guns. Background Art

[0002] With the rapid development of the electric vehicle industry, the heat dissipation problem of charging guns has become increasingly prominent and has become one of the key factors restricting charging efficiency and equipment life. As an innovative heat dissipation solution, the liquid cooling terminal of the charging gun has come into being. It introduces liquid cooling technology in the terminal part of the charging gun and uses circulating coolant to effectively remove the heat generated by high current transmission, thereby ensuring the safety and efficiency of the charging process.

[0003] The traditional charging gun terminal design often directly connects the wire to the fuel tank (here refers to the electrical component packaging shell inside the charging gun, not the literal fuel tank, but for ease of understanding, the original description is used). This design has significant disadvantages: once the terminal or wire fails and needs to be repaired, due to the limitations of the connection method, maintenance personnel often have to cut off the entire terminal together with the fuel tank, which not only causes a lot of material waste, but also makes the assembly and disassembly process extremely cumbersome, increasing maintenance costs and time costs. In addition, frequent disassembly and replacement may also affect the sealing and overall structural strength of the charging gun, posing a potential threat to the safety and service life of the equipment. Summary of the invention

[0004] In order to solve the above-mentioned problem, the present invention proposes a liquid-cooled terminal of a charging gun.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a liquid-cooled terminal for a charging gun, comprising a terminal, a connecting component is arranged on one side of the terminal, a liquid cooling component is arranged on one side of the connecting component, a quick connector is arranged on the terminal, and a bolt is arranged on the terminal.

[0006] Further, the terminal includes a side wall on which a through hole two is provided, a bolt is provided in the through hole two, a threaded hole is provided at the upper end of the side wall of the terminal, a quick connector is detachably installed in the threaded hole, the quick connector and the threaded hole are threadedly connected, a thread is provided on one side of the outer wall of the terminal, a stop step three is provided on the inner wall of the terminal, a stop step two is provided on the inner wall of the terminal, a stop step one is provided on the inner wall of the terminal, a jack mounting hole is provided at the other end of the terminal, a jack mounting hole is provided in the jack mounting hole, a crown spring is provided on the inner wall of the jack sleeve, a blocking step is provided on one side of the inner wall of the jack mounting hole, the stop step three is provided on one side of the threaded hole, the stop step two is provided on one side of the through hole two, and the stop step one is provided on the other side of the through hole two.

[0007] Furthermore, a contact pin is provided in the socket sleeve, a transition section is provided on one side of the contact pin, a welding block is provided on one side of the transition section, a through hole is opened on the transition section, a sealing groove is provided on the outer wall of the transition section, an O-ring is sleeved on the transition section, and a toggle port is provided on the other side of the contact pin.

[0008] Furthermore, a screw hole is provided on the outer wall of the terminal, and a screw is installed in the screw hole.

[0009] Furthermore, the connecting assembly includes a connecting inner cavity, which is arranged on the inner side of the terminal, an inner sleeve is provided in the connecting inner cavity, a sealing groove 2 is provided on one side of the outer wall of the inner sleeve, a nut is sleeved on the thread, the thread and the nut are threadedly connected, an inner conical surface is provided on one side of the nut, and an O-ring 2 is provided on one side of the inner wall of the connecting inner cavity.

[0010] Furthermore, the liquid cooling component includes a liquid cooling tube, an external clamp is sleeved on the liquid cooling tube, the external clamp includes a clamp boss, a clamp flange is provided on one side of the clamp boss, a clamp outer cone surface is provided on one side of the clamp flange, one end of the liquid cooling tube is provided on the inner wall of the inner cone surface, a wire is provided in the liquid cooling tube, a welding block 2 is provided at one end of the wire, and the welding block 2 is welded to the welding block 1.

[0011] Furthermore, a fixing hole is provided on the side wall of the transition section.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows:

[0013] The oil tank is not involved in the process of connecting the wires and terminals, reducing the volume space occupied by the oil tank. It ensures that the crimped / welded terminals are connected before being installed in the oil tank. This makes it more convenient when the product is disassembled and repaired without damaging any parts. For traditional terminals, the wires are directly connected to the oil tank, and the terminals and the oil tank are cut off together each time they are repaired, wasting materials and being extremely inconvenient to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0015] Figure 1 This is a three-dimensional diagram of a liquid-cooled terminal of a charging gun of the present invention;

[0016] Figure 2 This is a front cross-sectional view of a liquid-cooled terminal of a charging gun of the present invention;

[0017] Figure 3 This is an exploded view of a liquid cooling terminal of a charging gun of the present invention;

[0018] Figure 4 It is a three-dimensional diagram of the terminal;

[0019] Figure 5 is a schematic diagram of the connection component structure;

[0020] Figure 6 This is a cross-sectional view of the terminal.

[0021] Among them, 1. terminal, 2. nut, 3. quick connector, 4. liquid cooling tube, 5. bolt, 102. O-ring 1, 103. crown spring, 104. contact pin, 105. through hole 1, 106. transition section, 107. sealing groove 1, 108. welding block 1, 109. jack sleeve, 110. thread, 111. through hole 2, 112. threaded hole, 113. jack mounting hole, 115. stop step 1, 116. blocking step , 117, stop step two, 118, stop step three, 119, connecting inner cavity, 202, external clamp, 203, O-ring two, 205, clamp boss, 206, sealing groove two, 207, clamp flange, 208, inner sleeve, 210, clamp outer cone, 213, inner cone, 214, flange end face, 401, wire, 402, welding block two, 501, screw, 503, screw hole, 504, toggle port. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0023] like Figure 1-Figure 6As shown, the present invention proposes a charging gun liquid cooling terminal, including a terminal 1, a screw hole 503 is provided on the outer wall of the terminal 1, a screw 501 is installed in the screw hole 503, a through hole 111 is provided on the side wall of the terminal 1, a bolt 5 is provided in the through hole 111, a threaded hole 112 is provided at the upper end of the side wall of the terminal 1, a quick connector 3 is detachably installed in the threaded hole 112, the quick connector 3 and the threaded hole 112 are threadedly connected, a thread 110 is provided on one side of the outer wall of the terminal 1, a stop step 118 is provided on the inner wall of the terminal 1, a stop step 117 is provided on the inner wall of the terminal 1, and a stop step 11 5. The other end of the terminal 1 is provided with a socket mounting hole 113, a socket sleeve 109 is provided in the socket mounting hole 113, a contact pin 104 is provided in the socket sleeve 109, a transition section 106 is provided on one side of the contact pin 104, a welding block 108 is provided on one side of the transition section 106, a through hole 105 is provided on the transition section 106, a sealing groove 107 is provided on the outer wall of the transition section 106, an O-ring 102 is sleeved on the transition section 106, a toggle port 504 is provided on the other side of the contact pin 104, a crown spring 103 is provided in the socket sleeve 109, a blocking step 116 is provided on one side of the inner wall of the socket mounting hole 113, and a stop position Step three 118 is arranged on one side of threaded hole 112, stop step two 117 is arranged on one side of through hole two 111, stop step one 115 is arranged on the other side of through hole two 111, a connection assembly is arranged on one side of terminal 1, the connection assembly includes a connection inner cavity 119, the connection inner cavity 119 is arranged on one side of the inner part of terminal 1, an inner bushing 208 is arranged in the connection inner cavity 119, a sealing groove two 206 is arranged on one side of the outer wall of the inner bushing 208, a nut 2 is sleeved on the thread 110, the thread 110 and the nut 2 are threadedly connected, an inner conical surface 213 is arranged on one side of the nut 2, and an O-ring two 203 is arranged on one side of the inner wall of the connection inner cavity 119 A liquid cooling component is arranged on one side of the connecting component, and the liquid cooling component includes a liquid cooling tube 4, and an external clamp 202 is sleeved on the liquid cooling tube 4, and the external clamp 202 includes a clamp boss 205, and a clamp flange 207 is arranged on one side of the clamp boss 205, and a clamp outer cone 210 is arranged on one side of the clamp flange 207. One end of the liquid cooling tube 4 is arranged on the inner wall of the inner cone 213, and a wire 401 is arranged in the liquid cooling tube 4, and a welding block 2 402 is arranged at one end of the wire 401, and the welding block 2 402 is welded to the welding block 1 108, a quick connector 3 is arranged on the terminal 1, a bolt 5 is arranged on the terminal 1, and a fixing hole is arranged on the side wall of the transition section 106.

[0024] When in use, O-ring 203 and O-ring 102 are used for sealing the liquid circuit to ensure that the coolant circulates in the management, and have a good sealing effect. After the coolant circulates in the management, it flows back to the liquid cooling system from the connected pipeline through the quick connector 3, and enters the next cycle after cooling and heat dissipation treatment. The quick connector 3 is connected to the terminal 1 through the threaded hole 112. The welding block 108 is first welded to the welding block 2 402 of the wire 401, and then assembled into the inner cavity of the terminal 1. The jack sleeve 109 installed in the terminal 1 contacts the contact pin 104 to form a conductive electrical path; the jack mounting hole 113 is a pre-set mounting hole in the terminal 1, and the crown spring 103 in the jack sleeve 109 is mature The process is used and installed in the jack sleeve 109 in advance to form a stable conductive structure, and then the jack sleeve 109 is riveted into the jack mounting hole 113 through interference fit, and the blocking step 116 is used to stop the jack sleeve 109 and ensure that the jack sleeve 109 is flush with the front end of the terminal 1 to form a reliable interference fit jack installation, and the tail end of the terminal 1 forms a standard jack sleeve 109 structure; first, the length of the liquid cooling tube 4 and the wire 401 is measured at the tail end of the cable. In this step, the wire 401 is already in the liquid cooling tube 4. After cutting the front end face of the liquid cooling tube 4, the nuts 2 are inserted in order, and then the outer clamp 202 is inserted, and then the inner sleeve 208 is installed into the liquid cooling tube 4. Through the interference fit method, the inner sleeve 208 and the inner side of the liquid cooling tube 4 are shaped The liquid cooling tube 4 is tightly assembled. During the assembly process, the mouth of the liquid cooling tube 4 needs to be pre-expanded to facilitate the installation of the inner bushing 208. Because it is an interference fit, the inner bushing 208 requires special tooling to push the parts into the liquid cooling tube 4. This assembly can be done when the parts at the other end of the liquid cooling tube 4 have not been assembled. The liquid cooling tube 4 is pulled out to the front end for a distance to avoid the liquid cooling tube 4 blocking the assembly of the inner bushing 208. After the installation is completed, the liquid cooling tube 4 is reset, and then the O-ring 203 is inserted into the inner conical surface 213. After the above steps are processed, the liquid cooling tube 4 is welded to the contact pin 104, and then it is inserted into the terminal 1, and the front end of the contact pin 104 is limited by the stop step 115, or by The stop step 117 of the second stop step limits the position of the contact pin 104 close to the flange of the waterproof ring to ensure the accuracy of the position. The front end of the contact pin 104 is plugged into the jack sleeve 109 to form a complete passage for the conductor part. The O-ring 102 assembled on the contact pin 104 is assembled into the sealing groove 107 to form a complete waterproof structure. After completing the above steps, insert the flat-blade screw 501 into the toggle port 504 to adjust the position of the contact pin 104, ensure that the fixing hole on the transition section 106 and the screw hole 503 are aligned, and then use the screw 501 to lock it, and the alignment of the through hole 105 and the through hole 2 111 is automatically corrected synchronously;The inner bushing 208 and the installed O-ring 203 are installed together into the connecting inner cavity 119. The flange end face 214 and the stop step 3 118 form an installation stop. The outer clamp 202 is pushed into the tail of the terminal 1. The clamp boss 205 is rotated into the connecting inner cavity 119. The clamp flange 207 and the end face form a stop. Then the nut 2 is pushed forward. The nut 2 is threadedly connected with the thread 110. During the installation process, the inner cone surface 213 and the outer cone surface 210 of the clamp form an extrusion, causing the outer clamp 202 to shrink, and the liquid cooling tube 4 is tightly locked to ensure that the pull-off force of the connection is greater than 300N of the quick connector. At the same time, the interference fit of the cone surface ensures the waterproofness of the product. The above is the overall workflow of the present invention. Repeat this step when you use it next time. ;

[0025] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A charging gun liquid cooling terminal, characterized in that: It comprises a terminal (1), a connection assembly is arranged on one side of the terminal (1), a liquid cooling assembly is arranged on one side of the connection assembly, a quick connector (3) is arranged on the terminal (1), and a second through hole (111) is provided on the side wall of the terminal (1).

2. A charging gun liquid cooling terminal according to claim 1, characterized in that: A bolt (5) is detachably provided in the second through hole (111), a threaded hole (112) is provided at the upper end of the side wall of the terminal (1), a quick connector (3) is detachably installed in the threaded hole (112), the quick connector (3) and the threaded hole (112) are threadedly connected, a thread (110) is provided on one side of the outer wall of the terminal (1), a stop step (3) (118) is provided on the inner wall of the terminal (1), a stop step (2) (117) is provided on the inner wall of the terminal (1), and a stop step (115) is provided on the inner wall of the terminal (1). ), the other end of the terminal (1) is provided with a socket mounting hole (113), a socket sleeve (109) is provided in the socket mounting hole (113), a crown spring (103) is provided on the inner wall of the socket sleeve (109), a blocking step (116) is provided on one side of the inner wall of the socket mounting hole (113), the stop step three (118) is provided on one side of the threaded hole (112), the stop step two (117) is provided on one side of the through hole two (111), and the stop step one (115) is provided on the other side of the through hole two (111).

3. The liquid-cooled terminal of a charging gun according to claim 2, characterized in that: A contact pin (104) is arranged in the socket sleeve (109), a transition section (106) is arranged on one side of the contact pin (104), a welding block (108) is arranged on one side of the transition section (106), a through hole (105) is provided on the transition section (106), a sealing groove (107) is arranged on the outer wall of the transition section (106), an O-ring (102) is sleeved on the transition section (106), and a toggle port (504) is arranged on the other side of the contact pin (104).

4. The liquid-cooled terminal of a charging gun according to claim 3, characterized in that: A screw hole (503) is provided on the outer wall of the terminal (1), and a screw (501) is installed in the screw hole (503).

5. The liquid-cooled terminal of a charging gun according to claim 4, characterized in that: The connection assembly comprises a connection inner cavity (119), wherein the connection inner cavity (119) is arranged on an inner side of the terminal (1), an inner bushing (208) is arranged in the connection inner cavity (119), a sealing groove (206) is arranged on an outer wall side of the inner bushing (208), a nut (2) is sleeved on the thread (110), the thread (110) and the nut (2) are threadedly connected, an inner conical surface (213) is arranged on one side of the nut (2), and an O-ring (203) is arranged on an inner wall side of the connection inner cavity (119).

6. A charging gun liquid cooling terminal according to claim 5, characterized in that: The liquid cooling component includes a liquid cooling tube (4), an external clamp (202) is sleeved on the liquid cooling tube (4), the external clamp (202) includes a clamp boss (205), a clamp flange (207) is provided on one side of the clamp boss (205), a clamp outer cone (210) is provided on one side of the clamp flange (207), one end of the liquid cooling tube (4) is arranged on the inner wall of the inner cone (213), a wire (401) is provided in the liquid cooling tube (4), one end of the wire (401) is provided with a welding block 2 (402), and the welding block 2 (402) and the welding block 1 (108) are welded and connected.

7. A charging gun liquid cooling terminal according to claim 6, characterized in that: A fixing hole is provided on the side wall of the transition section (106).

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