CN220155859U - Car end charging gun - Google Patents
Car end charging gun Download PDFInfo
- Publication number
- CN220155859U CN220155859U CN202321626287.XU CN202321626287U CN220155859U CN 220155859 U CN220155859 U CN 220155859U CN 202321626287 U CN202321626287 U CN 202321626287U CN 220155859 U CN220155859 U CN 220155859U
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- CN
- China
- Prior art keywords
- terminal
- charging gun
- vehicle
- boss
- clamping
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- 238000009434 installation Methods 0.000 claims abstract description 23
- 238000003466 welding Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model discloses a vehicle-end charging gun, which comprises: the plug is provided with a plurality of terminal installation bosses, and the rear ends of the terminal installation bosses are convexly provided with limiting bosses; the terminal fixing support is provided with a plurality of terminal mounting holes, the front ends of the terminal mounting holes are convexly provided with limiting convex steps, and the limiting convex steps are inserted into the limiting bosses; and the terminal assembly comprises a contact pin and a cable, wherein the contact pin comprises a first half part and a second half part, the first half part is inserted into the terminal installation boss, the second half part penetrates out of the terminal installation boss and is connected with the cable, and one end of the second half part, which is away from the cable, is clamped with the limiting convex step. According to the utility model, the clamping structure is arranged among the plug, the terminal fixing support and the terminal assembly, so that the rapid assembly of all parts is facilitated, and meanwhile, the connection stability among the parts is improved.
Description
Technical Field
The utility model relates to the technical field of electric connectors, in particular to a vehicle-end charging gun.
Background
The charging gun is a plug bush used in the charging gun, and is usually installed by matching with a pin at the vehicle end through a hole, and a cable is installed at the other end, so that the integral function is realized.
However, assembly of all parts of the existing vehicle-end charging gun consumes man-hours, and due to the split design of the cable and the contact pin at the terminal, when collision and impact occur in the use process of the charging gun, the contact pin and the cable can move relative to the plug bush due to offset caused by impact, and the problem of temperature rise can be caused by moving friction, so that the performance and the impedance of the charging gun are affected, and the reliability and the service life of the charging gun are also not facilitated.
Disclosure of Invention
The utility model mainly aims to provide a vehicle-end charging gun, which aims to improve the connection stability between a charging gun plug and a terminal fixing bracket and improve the connection mode between the terminal fixing bracket and a terminal so as to avoid the problems that the assembly of all parts of the charging gun is complex and the reliability is influenced by unstable assembly.
In order to achieve the above object, the present utility model provides a vehicle-end charging gun, comprising: the plug is provided with a plurality of terminal installation bosses, and the rear ends of the terminal installation bosses are convexly provided with limiting bosses; the terminal fixing support is provided with a plurality of terminal mounting holes, the front ends of the terminal mounting holes are convexly provided with limiting convex steps, and the limiting convex steps are inserted into the limiting bosses; and the terminal assembly comprises a contact pin and a cable, wherein the contact pin comprises a first half part and a second half part, the first half part is inserted into the terminal installation boss, the second half part penetrates out of the terminal installation boss and is connected with the cable, and one end of the second half part, which is away from the cable, is clamped with the limiting convex step.
Optionally, a first clamping portion is arranged on the limiting convex step, a second clamping portion is arranged on the second half portion, and the second half portion and the terminal mounting hole are clamped in a matched mode through the first clamping portion and the second clamping portion.
Optionally, the protruding joint ring that is equipped with of one end of plug, the joint ring is located the outside of terminal installation boss, just offered the draw-in groove on the joint ring, the cooperation is provided with the fixture block on the terminal fixed bolster.
Optionally, ultrasonic welding is performed between the contact pin and the cable.
Further, a welding auxiliary hole is further formed in the second half portion, and the welding auxiliary hole is located at the joint of the second half portion and the cable.
Optionally, the inner diameter of the limiting boss is larger than the inner diameter of the terminal installation boss, and the outer diameter of the limiting convex step is smaller than or equal to the inner diameter of the limiting boss.
Optionally, the first joint portion is annular flange, the second joint portion is annular groove, the second joint portion is pegged graft on the inner ring of first joint portion, be provided with first conical surface on the first joint portion, terminal installation boss cooperation is provided with the second conical surface.
Optionally, the contact pin further includes a contact pin cap and a crown spring, the contact pin cap is sleeved at one end of the first half close to the plug, and the crown spring is inserted in the first half.
Optionally, the outside cover of first half is equipped with first waterproof circle, first waterproof circle is located the inside of terminal installation boss, first waterproof circle interference fit in first half.
Optionally, a second waterproof ring is arranged on the plug, and the second waterproof ring is sleeved on the outer side of the clamping ring.
The utility model has the beneficial effects that: through set up screens structure between plug, terminal fixed bolster and terminal subassembly, when being convenient for each part fast assembly, improved the connection stability between individual part to avoid charging gun to receive the impact and lead to part friction heat to influence charging gun performance and impedance, guarantee that this charging gun product is low in the temperature rise of charging in-process, reliability and life.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a vehicle end charging head according to the present utility model;
FIG. 2 is an exploded view of the charging head of the vehicle end of the present utility model;
fig. 3 is an exploded view of the structure of the plug and terminal-securing bracket of the present utility model;
fig. 4 is a schematic cross-sectional view of the plug and terminal-securing bracket of the present utility model;
FIG. 5 is a schematic cross-sectional view of a charging head of the vehicle end of the present utility model;
fig. 6 is an exploded view of the structure of the terminal assembly of the present utility model.
Reference numerals illustrate:
a plug 1; a terminal mounting boss 11; a limit boss 12; a clamping ring 13; a clamping groove 14; a second waterproof ring 15; a terminal fixing bracket 2; a terminal mounting hole 21; a limit step 22; a first engagement portion 23; a latch block 24; a terminal assembly 3; a pin 31; a first half 31a; a second half 31b; a cable 32; a second engaging portion 33; a welding auxiliary hole 34; a pin cap 35; a crown spring 36; a first waterproof ring 37.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
An embodiment of the present utility model proposes a vehicle-end charging gun, referring to fig. 1 to 6, including: the plug 1 is provided with a plurality of terminal installation bosses 11, and the rear end of each terminal installation boss 11 is convexly provided with a limit boss 12; the terminal fixing bracket 2 is provided with a plurality of terminal mounting holes 21, the front ends of the terminal mounting holes 21 are convexly provided with limiting convex steps 22, and the limiting convex steps 22 are inserted into the limiting bosses 12; and the terminal assembly 3 comprises a pin 31 and a cable 32, wherein the pin 31 comprises a first half 31a and a second half 31b, the first half 31a is inserted into the terminal mounting boss 11, the second half 31b penetrates through the terminal mounting boss 11 and is connected with the cable 32, and one end of the second half 31b, deviating from the cable 32, is clamped with the limiting boss 22. In this embodiment, through setting up screens structure between plug 1, terminal fixed bolster 2 and terminal subassembly 3, when being convenient for each part fast assembly, improved the connection stability between individual part to avoid charging gun to receive the impact and lead to part friction heat to influence charging gun performance and impedance, guarantee that this charging gun product is low in the temperature rise of charging in-process, reliability and life.
The utility model is illustrated in more detail below by way of examples. However, the following examples are illustrative only and the scope of the present utility model should not be construed as being limited by the following examples. It will be apparent to those skilled in the art that any changes, modifications or alterations may be made without departing from the spirit of the utility model. Referring to the drawings, the structural composition of the vehicle-end charging gun in the example is similar to that of the above-described embodiment, and reference may be made to the corresponding scheme in the foregoing method embodiment, which is not described here. In this example, referring to fig. 1-3, the number of the terminal mounting bosses 11 and the number of the terminal mounting holes 21 are seven, the number of the terminal assemblies 3 is seven correspondingly, the seven terminal assemblies are respectively a diversion terminal for parallel transmission of a plurality of power supplies and a shielding terminal for reducing interference and noise, the diversion terminal is formed by connecting five six square wires with a welding pin, the five six square wires are three phase wires, one grounding wire and one zero wire in an alternating current circuit, and the shielding terminal is formed by connecting two shielding cables of 2.5 square wires with a plug pin.
In this embodiment, referring to fig. 4 to 6, the limiting step 22 is provided with a first clamping portion 23, the second half 31b is provided with a second clamping portion 33, and the second half 31b and the terminal mounting hole 21 are clamped by the first clamping portion 23 and the second clamping portion 33 in a matching manner. The first clamping portion 23 is an annular flange, the second clamping portion 33 is an annular groove, and the second clamping portion 33 is inserted into the inner ring of the first clamping portion 23. The design mode can enable the connection between the terminal assembly 3 and the terminal fixing support 2 to be firmer and more reliable, avoid the problem of connection failure or looseness, and enhance the connection stability. Meanwhile, the first clamping part 23 and the second clamping part 33 are relatively simple in matching clamping, and can be assembled and disassembled without additional connecting tools, so that the overall assembly and disassembly efficiency can be greatly improved.
In this embodiment, referring to the figure, a clamping ring 13 is protruding at one end of the plug 1, the clamping ring 13 is located at the outer side of the terminal installation boss 11, a clamping groove 14 is formed in the clamping ring 13, and a clamping block 24 is cooperatively disposed on the terminal fixing support 2. The existence of the clamping ring 13 can play a certain installation guiding and limiting role, and the clamping ring 13 can also avoid poor signal contact or other problems caused by looseness in the use process of the plug 1, so that a more stable and reliable signal transmission effect is provided. Secondly, the clamping block 24 on the terminal fixing support 2 can be matched with the clamping groove 14 to lock the plug 1 better, so that the plug 1 is ensured not to fall off or loose due to interference of external force in the use process, and the service life and reliability of the product are improved.
In this embodiment, referring to the figure, the contact pin 31 and the cable 32 are ultrasonically welded, and the second half 31b is further provided with a welding auxiliary hole 34, and the welding auxiliary hole 34 is located at a connection position between the second half 31b and the cable 32. The auxiliary welding hole 34 is a notch formed in the second half 31b, and the notch is designed to expose a portion of the cable 32 connected to the second half 31 b. After the contact pin 31 and the cable 32 are connected by ultrasonic welding, the contact surface between the contact pin 31 and the cable 32 may be deformed or displaced due to high temperature and high pressure generated during the ultrasonic welding, thereby affecting the quality and reliability of the connection. In order to solve the problem, a welding auxiliary hole 34 is formed at the connection portion of the pin 31, and the stable position of the pin 31 and the cable 32 can be maintained by injecting a certain pressure into the welding auxiliary hole 34 or using a proper tool during ultrasonic welding, thereby ensuring the quality of welding and the firmness of connection.
In the present embodiment, referring to the figure, the inner diameter of the limit boss 12 is larger than the inner diameter of the terminal mounting boss 11, and the outer diameter of the limit boss step 22 is smaller than or equal to the inner diameter of the limit boss 12. The top end of the terminal installation boss 11 abuts against the joint of the limit boss 12 and the terminal installation boss 11.
In this embodiment, referring to the drawings, the first engaging portion 23 is provided with a first tapered surface (not shown), and the terminal mounting boss 11 is cooperatively provided with a second tapered surface (not shown). By the shape fit of the above-described tapered surfaces, tight connection of the limit boss 22 and the terminal mounting boss 11 is achieved.
In this embodiment, referring to the figure, the pin 31 further includes a pin cap 35 and a crown spring 36, the pin cap 35 is sleeved at one end of the first half 31a near the plug 1, and the crown spring 36 is threaded inside the first half 31a. The crown spring 36 is composed of a spring-shaped coil (not shown) and a plurality of metal plates (not shown), and when an electric current passes through the coil, the coil generates electromagnetic force due to electromagnetic induction, so that the coil is extruded and deformed along the direction of the metal plates, and the gap between the metal plates is changed, so that the total impedance in the circuit is reduced.
In this embodiment, referring to the figure, a first waterproof ring 37 is sleeved on the outer side of the first half 31a, the first waterproof ring 37 is located inside the terminal mounting boss 11, and the first waterproof ring 37 is in interference fit with the first half 31a. The first half 31a is provided with a first waterproof ring 37 mounting groove (not shown in the figure), the waterproof ring mounting groove is located beside the second clamping portion 33, the first waterproof ring 37 is arranged in the waterproof ring mounting groove, and the first waterproof ring 37 in interference fit is arranged, so that the first half 31a and the terminal mounting boss 11 are kept in a fastening seal, and the assembly precision and stability are improved.
In this embodiment, referring to the figure, the plug 1 is provided with a second waterproof ring 15, the second waterproof ring 15 is sleeved on the outer side of the clamping ring 13, a second waterproof ring 15 mounting groove (not labeled in the figure) is provided on the rear end of the plug 1, and the vehicle-end charging gun is used for the vehicle end of the charging gun, so in practical application, the rear end of the vehicle-end charging gun is further connected with the charging gun of the pile end through the shell, and the provision of the second waterproof ring 15 ensures that the rear-end connection part of the vehicle-end charging gun remains sealed and waterproof.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A vehicle-end charging gun, comprising:
the plug is provided with a plurality of terminal installation bosses, and the rear ends of the terminal installation bosses are convexly provided with limiting bosses;
the terminal fixing support is provided with a plurality of terminal mounting holes, the front ends of the terminal mounting holes are convexly provided with limiting convex steps, and the limiting convex steps are inserted into the limiting bosses; and
the terminal assembly comprises a contact pin and a cable, wherein the contact pin comprises a first half part and a second half part, the first half part is inserted into the terminal installation boss, the second half part penetrates out of the terminal installation boss and is connected with the cable, and one end of the second half part, which is away from the cable, is clamped with the limiting convex step.
2. The vehicle-end charging gun according to claim 1, wherein the limiting boss is provided with a first clamping portion, the second half is provided with a second clamping portion, and the second half and the terminal mounting hole are clamped in a matched manner through the first clamping portion and the second clamping portion.
3. The vehicle-end charging gun according to claim 1, wherein one end of the plug is convexly provided with a clamping ring, the clamping ring is positioned on the outer side of the terminal installation boss, a clamping groove is formed in the clamping ring, and a clamping block is matched with the terminal fixing support.
4. The vehicle-end charging gun of claim 1, wherein ultrasonic welding is performed between the pin and the cable.
5. The vehicle-end charging gun of claim 4, wherein the second half is further provided with a welding auxiliary hole, and the welding auxiliary hole is located at a connection portion between the second half and the cable.
6. The vehicle-end charging gun according to claim 1, wherein an inner diameter of the limit boss is larger than an inner diameter of the terminal mounting boss, and an outer diameter of the limit boss is smaller than or equal to the inner diameter of the limit boss.
7. The vehicle-end charging gun according to claim 2, wherein the first clamping portion is an annular flange, the second clamping portion is an annular groove, the second clamping portion is inserted into the inner ring of the first clamping portion, a first conical surface is arranged on the first clamping portion, and a second conical surface is arranged on the terminal mounting boss in a matched mode.
8. The vehicle-end charging gun of claim 1, wherein the pin further comprises a pin cap and a crown spring, the pin cap is sleeved at one end of the first half near the plug, and the crown spring is threaded inside the first half.
9. The vehicle-end charging gun according to claim 1, wherein a first waterproof ring is sleeved on the outer side of the first half, the first waterproof ring is located inside the terminal mounting boss, and the first waterproof ring is in interference fit with the first half.
10. The vehicle-end charging gun according to claim 3, wherein a second waterproof ring is arranged on the plug, and the second waterproof ring is sleeved outside the clamping ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321626287.XU CN220155859U (en) | 2023-06-25 | 2023-06-25 | Car end charging gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321626287.XU CN220155859U (en) | 2023-06-25 | 2023-06-25 | Car end charging gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220155859U true CN220155859U (en) | 2023-12-08 |
Family
ID=89012314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321626287.XU Active CN220155859U (en) | 2023-06-25 | 2023-06-25 | Car end charging gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220155859U (en) |
-
2023
- 2023-06-25 CN CN202321626287.XU patent/CN220155859U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |