CN219458120U - Charging gun head and charging system - Google Patents

Abstract

The utility model relates to the technical field of power transmission and distribution of power systems, in particular to a charging gun head and a charging system. This rifle head charges including being equipped with a plurality of casings that cross the line chamber and wear to locate a plurality of wiring components that cross the line chamber respectively, every wiring component includes terminal, cable and waterproof piece, the crimping groove has been seted up to the one end of terminal, the crimping inslot of a terminal is pressed into to the corresponding crimping of cable, locate the peripheral wall of cable and terminal through adopting waterproof piece cover, and wrap up partial terminal and partial cable, make waterproof piece can wrap up the junction of cable and terminal completely, even hold the intracavity water and also can not influence the terminal and cable junction's electricity and be connected, avoid the electrically conductive potential safety hazard that leads to the circuit short circuit in the rifle head of aqueous medium, can also reduce the high strength waterproofing of threading board department, effectively solve the technical problem that the water is in the rifle shell has the electrically conductive potential safety hazard that leads to the circuit short circuit in the rifle head.

Description

Charging gun head and charging system

Technical Field

The utility model relates to the technical field of power transmission and distribution of power systems, in particular to a charging gun head and a charging system.

Background

With the development of the automobile industry, new energy automobiles are increasingly popularized in the market, and the automobile charging problem is also a main problem which always puzzles new energy automobile owners, and because the new energy automobiles are complex in charging environment, the charging gun is required to have higher safety performance, and the safety problem in the use process can be avoided.

The prior art discloses that a terminal and a cable are arranged on a gun shell which is integrally molded, the gun head has heavier structural quality, and the interior is difficult to be added with a moving structure such as a lock hook and the like, which is not beneficial to the structural improvement of the product; there is also a disclosure that the waterproofing of the charging gun to the terminal and the cable is generally to add a waterproofing ring on the path of the terminal extending out of the gun housing to seal, or to add a waterproofing treatment on the end or path of the cable extending into the gun housing, for example, an waterproof ring is added on a wire inlet plate, once the waterproofing fails to make the inside of the gun housing enter water, there is a potential safety hazard that the circuit in the gun head is short-circuited due to the conduction of the aqueous medium.

Disclosure of Invention

The utility model mainly aims to provide a charging gun head, which aims to solve the technical problem of potential safety hazards of short circuit in the gun head caused by water medium conduction in a gun shell.

In order to achieve the above object, the charging gun head provided by the present utility model includes:

the wire passing device comprises a shell, a wire passing device and a wire feeding device, wherein the shell is provided with a plurality of wire passing cavities; and

each wiring assembly penetrates through one wire passing cavity and comprises a terminal, a cable and a waterproof piece;

one end of the terminal is provided with a crimping groove, one end of the cable is arranged in the crimping groove, the waterproof piece is sleeved at the joint of the terminal and the cable, and part of the terminal and part of the cable are wrapped.

Optionally, a first clamping part is arranged on the peripheral wall of one end, adjacent to the crimping groove, of the terminal;

the waterproof piece is equipped with the second joint portion towards one side of the peripheral wall of terminal, the second joint portion is located in the first joint portion.

Optionally, one of the first clamping portion and the second clamping portion is a groove, and the other is a protrusion, and the protrusion is disposed in the groove.

Optionally, the number of the grooves is at least two punctiform grooves, at least two grooves are arranged at intervals, and the protrusions are arranged corresponding to the grooves.

Optionally, the groove is an annular groove.

Optionally, the waterproof member is an insulating member.

Optionally, the waterproof piece is integrally injection molded.

Optionally, a sealing groove is formed in the peripheral wall of the terminal;

the charging gun head further comprises a sealing piece, wherein the sealing piece is arranged in the sealing groove, and the peripheral wall of the sealing piece is in extrusion fit with the local inner wall of the wire passing cavity.

Optionally, the wire passing cavity includes:

the accommodating cavity is arranged in the shell; and

the plug-in cavity is arranged at one end, far away from the cable, of the shell, the plug-in cavity is communicated with the accommodating cavity through a plurality of through holes, and one wiring assembly penetrates through one through hole;

one end of the terminal, which is far away from the cable, penetrates through the through hole and stretches into the plug-in cavity so as to be matched with the plug-in end of the external socket.

The utility model also provides a charging system comprising a charging gun head as described in any one of the above.

The charging gun head comprises a shell provided with a plurality of wire passing cavities and a plurality of wiring assemblies respectively penetrating the wire passing cavities, wherein each wiring assembly comprises a terminal, a cable and a waterproof piece, one end of the terminal is provided with a crimping groove, the cable is correspondingly crimped into the crimping groove of one terminal, the waterproof piece is sleeved on the peripheral walls of the cable and the terminal and wraps part of the terminal and part of the cable, so that the waterproof piece can completely wrap the connection part of the cable and the terminal, even if water enters the cavity, the electric connection of the connection part of the terminal and the cable is not influenced, the potential safety hazard of the short circuit of the gun head caused by the conduction of an aqueous medium is avoided, the high-strength waterproof treatment of the position of a threading plate is also reduced, and the technical problem of the potential safety hazard of the short circuit of the gun head caused by the conduction of the aqueous medium in the water entering the gun shell is effectively solved.

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 view of a charging gun head according to an embodiment of the present utility model;

FIG. 2 is a schematic side sectional view of an embodiment of a charging gun head according to the present utility model;

FIG. 3 is a schematic perspective view of a plurality of wiring assemblies according to an embodiment of the charging gun head of the present utility model;

fig. 4 is a schematic side sectional view of any of the wiring assemblies of one embodiment of the charging gun head of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Charging gun head	30	Terminal for connecting a plurality of terminals
10	Shell body	30A	Crimping groove
				10A	Wire passing cavity	30B	Sealing groove
101A	Containing cavity	311	First clamping part
				102A	Plug-in cavity	50	Cable with improved heat dissipation
103A	Perforation	70	Waterproof piece
				20	Wiring assembly	711	Second clamping part
80	Sealing element

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 all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. 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.

New energy automobiles are increasingly popular in the market, and the automobile charging problem is also a main problem which always puzzles new energy automobile owners, and because the new energy automobiles are complex in charging environment, the new energy automobiles often have higher safety performance on charging guns, and the safety problem in the use process can be avoided.

The prior art discloses that a terminal and a cable are arranged on a gun shell which is integrally molded, the gun head has heavier structural quality, and the interior is difficult to be added with a moving structure such as a lock hook and the like, which is not beneficial to the structural improvement of the product; there is also a disclosure that the waterproofing of the charging gun to the terminal and the cable is generally to add a waterproofing ring on the path of the terminal extending out of the gun housing to seal, or to add a waterproofing treatment on the end or path of the cable extending into the gun housing, for example, an waterproof ring is added on a wire inlet plate, once the waterproofing fails to make the inside of the gun housing enter water, there is a potential safety hazard that the circuit in the gun head is short-circuited due to the conduction of the aqueous medium.

The utility model provides a charging gun head 100.

Referring to fig. 1 to 4, fig. 1 is a schematic partial perspective view of an embodiment of a charging gun head 100 according to the present utility model; fig. 2 is a schematic side sectional view of an embodiment of a charging gun head 100 according to the present utility model; fig. 3 is a schematic perspective view of a plurality of wiring assemblies 20 according to an embodiment of the charging gun head 100 of the present utility model; fig. 4 is a schematic side sectional view of any wiring assembly 20 of an embodiment of a charging gun head 100 according to the present utility model.

In an embodiment of the present utility model, the charging gun head 100 includes a housing 10 and a plurality of wiring assemblies 20; as shown in fig. 1 to 3, the housing 10 is provided with a plurality of wire passing cavities 10A; each of the wire connection assemblies 20 is disposed in one of the wire passing cavities 10A, and the wire connection assemblies 20 include a terminal 30, a cable 50 and a waterproof member 70; one end of the terminal 30 is provided with a pressure welding groove 30A, one end of the cable 50 is arranged in the pressure welding groove 30A, and the waterproof piece 70 is sleeved at the joint of the terminal 30 and the cable 50 and wraps part of the terminal 30 and part of the cable 50.

According to the technical scheme, the charging gun head 100 comprises a shell 10 provided with a plurality of wire passing cavities 10A and a plurality of wire connecting assemblies 20 respectively penetrating through the wire passing cavities 10A, each wire connecting assembly 20 comprises a terminal 30, a cable 50 and a waterproof piece 70, one end of the terminal 30 is provided with a crimping groove 30A, the cable 50 is correspondingly crimped into the crimping groove 30A of one terminal 30, the waterproof piece 70 is sleeved on the peripheral walls of the cable 50 and the terminal 30 and wraps part of the terminal 30 and part of the cable 50, so that the waterproof piece 70 can completely wrap the joint of the cable 50 and the terminal 30, even if water enters the accommodating cavity 101A, the electric connection of the joint of the terminal 30 and the cable 50 is not affected, the potential safety hazard of circuit short circuit in the gun head caused by water medium conduction is avoided, the high-strength waterproof treatment of the position of a threading plate can be reduced, and the potential safety hazard of the circuit short circuit in the gun head caused by water entering the gun housing is effectively solved.

Optionally, the waterproof member 70 is an insulating member.

In this embodiment, the terminal 30 is connected to the cable 50 by pressure welding, the waterproof member 70 is sleeved at the connection position of the terminal 30 and the cable 50, and wraps part of the terminal 30 and part of the cable 50 at the connection position of the terminal 30 and the cable 50, so that the connection area of the terminal 30 and the cable 50 can be completely wrapped, the connection position cannot be directly contacted with water, and when water is immersed into the cavity of the charging gun, the connection position cannot be contacted with conductive parts such as the terminal 30 and the cable 50, thereby preventing the power supply from being conducted by using water as a carrier and the risk of short circuit.

Alternatively, the waterproof member 70 is integrally injection molded.

In this embodiment, the terminal 30 and the cable 50 are connected by a crimping manner, and then the crimped terminal 30 and the cable 50 are put into a plastic mold for encapsulation, the plastic wraps the connection between the terminal 30 and the cable 50 and is integrally formed, and no gap or joint gap exists, so that the waterproof reliability of the waterproof member 70 is improved.

As shown in fig. 4 in combination, alternatively, the terminal 30 is provided with a first engaging portion 311 adjacent to the outer peripheral wall of one end of the crimping groove 30A; a second clamping portion 711 is provided on a side of the waterproof member 70 facing the outer peripheral wall of the terminal 30, and the second clamping portion 711 is provided in the first clamping portion 311.

In the present embodiment, the first clamping portion 311 and the second clamping portion 711 are mutually clamped and matched, so as to prevent the waterproof member 70 and the second clamping portion from moving or slipping relatively, and enhance the connection stability of the waterproof member 70, the terminal 30 and the cable 50 extending along the axial direction of the terminal 30.

Optionally, one of the first clamping portion 311 and the second clamping portion 711 is a groove, and the other is a protrusion, and the protrusion is disposed in the groove.

In this embodiment, the groove may be disposed on the terminal 30, the corresponding protrusion is disposed on the waterproof member 70, in another embodiment, the protrusion is disposed on the outer peripheral wall of the terminal 30, and then the corresponding groove may be disposed on the waterproof member 70, and the waterproof member 70 after injection molding is adapted to the groove with the protrusion shape due to the integral injection molding of the waterproof member 70, so as to improve the connection stability between the waterproof member 70 and the terminal 30 and the cable 50 extending along the axial direction of the terminal 30.

Further, when the wiring assembly 20 is inserted into the housing 10, in order to ensure stability when the waterproof member 70 is assembled with the housing 10, it is preferable to chisel a groove on the terminal 30, and in the injection molding process of the waterproof member 70, the thickness of the waterproof member 70 is thicker, the structural strength is higher during assembly, and the assembly stability is good.

The following description will be made with reference to the embodiment in which the terminal 30 is provided with a groove.

Further, at least one groove is provided, and when the waterproof member 70 is injection molded, the liquid plastic of the waterproof member 70 is injected into the one groove, so that the packing stability of the waterproof member 70, the terminal 30 and the cable 50 in the axial direction of the terminal 30 can be improved, and the relative sliding is avoided.

Optionally, the number of the grooves is at least two punctiform grooves, at least two grooves are arranged at intervals, and the protrusions are arranged corresponding to the grooves.

In this embodiment, the number of the grooves may be at least two, and the at least two grooves are distributed in a dot shape and symmetrically distributed or asymmetrically distributed along the peripheral wall of the terminal 30, and the protrusions are correspondingly clamped in the grooves. The two grooves may be located on the same circumference of the outer circumferential wall of the terminal 30, or there may be a relative displacement difference along the axial direction of the terminal 30, that is, the two grooves are arranged in a staggered manner along the axial direction of the terminal 30, so that the axial clamping strength of the terminal 30 and the waterproof member 70 can be improved.

Optionally, the groove is an annular groove.

In this embodiment, the grooves may be provided in one or two or more. The recess can set up to the annular groove, and waterproof piece 70 cladding is equipped with annular protrusion in the adaptation annular groove on terminal 30, promotes waterproof piece 70 and terminal 30 along the joint intensity the same of every point in the direction of its terminal 30 axial, increases waterproof piece 70 and terminal 30 at the joint area of recess department simultaneously, the parcel reliability of reinforcing waterproof piece 70.

Optionally, the wire passing cavity 10A includes a cavity 101A and a socket cavity 102A, and the cavity 101A is disposed inside the housing 10; the plugging cavity 102A is disposed at an end of the housing 10 away from the cable 50, the plugging cavity 102A is communicated with the accommodating cavity 101A through a plurality of through holes 103A, and the wiring assembly 20 is disposed in one through hole 103A in a penetrating manner; the end of the terminal 30 remote from the cable 50 extends into the socket cavity 102A through the aperture 103A to fit into the socket end of an external socket.

In this embodiment, the wiring assembly 20 is disposed in the entire wire passing cavity 10A in a penetrating manner, and is matched with the housing 10 to form a charging gun head 100 with one end connected to the cable 50 and the other end having a pluggable structure. The number of the plugging cavities 102A may be set corresponding to the number of the through holes 103A, each plugging cavity 102A is connected with the accommodating cavity 101A through one through hole 103A, when the power connection assembly passes through the through hole 103A, one end of the waterproof member 70 may partially extend into the through hole 103A and be tightly matched with the inner wall of the through hole 103A, so as to improve the stability of the terminal 30 extending into the plugging cavity 102A.

It is understood that the terminals 30 are divided into the signal terminals 30 and the power receiving terminals 30, and the radial diameters of the signal terminals 30 and the power receiving terminals 30 are different, and the radial diameter of the penetrating hole 103A or the waterproof member 70 is set to be the radial diameter of the terminal 30.

Optionally, a sealing groove 30B is provided on the outer peripheral wall of the terminal 30; the charging gun head 100 further comprises a sealing element 80, the sealing element 80 is arranged in the sealing groove 30B, and the outer peripheral wall of the sealing element 80 is in extrusion fit with the local inner wall of the wire passing cavity 10A.

In this embodiment, in the assembly of the wiring assembly 20 and the housing 10, when the wiring assembly passes through the through hole 103A, the waterproof member 70 is matched with the wall of the through hole 103A, so that the stability of the assembly of the terminal 30 and the housing 10 can be improved, and the waterproof performance can be ensured. Before the terminal 30 extends into the plugging cavity 102A, at least one sealing groove 30B is formed in the peripheral wall of the terminal 30 adjacent to the plugging cavity 102A, a sealing element 80 is disposed in the sealing groove 30B corresponding to each sealing groove 30B of the charging gun head 100, and the peripheral wall of the sealing element 80 is in extrusion fit with the local inner wall of the wire passing cavity 10A, so that the terminal 30 is pre-waterproof in the direction from the plugging cavity 102A toward the cavity 101A, and water is difficult to enter the cavity 101A. The waterproof member 70 is arranged to ensure that water cannot enter the junction between the terminal 30 and the cable 50 even if water enters the accommodating cavity 101A, so that the risk of short circuit caused by water inflow conduction is reduced.

It will be appreciated that two or more seal grooves 30B may be provided in parallel, each seal groove 30B being provided with a seal 80 to enhance the waterproof effect. The sealing element 80 can be an annular sealing ring made of rubber, plastic, rubber band or silica gel, has good sealing effect, and can be assembled with the sealing groove 30B in a detachable manner so as to be convenient to replace.

The utility model also provides a charging system, which comprises a charging socket and a charging gun head 100, wherein the specific structure of the charging gun head 100 refers to the embodiment, and the charging system adopts all the technical schemes of all the embodiments, so that the charging system at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

In this embodiment, the charging system includes a charging socket and a charging gun head 100, where a socket end of the charging socket is provided with a power receiving slot for accommodating and electrically connecting the terminal 30, and when the charging socket and the charging gun head 100 are plugged, the socket end of the charging socket enters the socket cavity 102A on the charging gun head 100, so that the terminal 30 is plugged into the power receiving slot of the charging socket to complete the circuit.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The utility model provides a rifle head charges which characterized in that, the rifle head charges includes:

the wire passing device comprises a shell, a wire passing device and a wire feeding device, wherein the shell is provided with a plurality of wire passing cavities; and

each wiring assembly penetrates through one wire passing cavity and comprises a terminal, a cable and a waterproof piece;

one end of the terminal is provided with a crimping groove, one end of the cable is arranged in the crimping groove, the waterproof piece is sleeved at the joint of the terminal and the cable, and part of the terminal and part of the cable are wrapped.

2. The charging gun head according to claim 1, wherein a first clamping portion is provided on an outer peripheral wall of one end of the terminal adjacent to the crimping groove;

the waterproof piece is equipped with the second joint portion towards one side of the peripheral wall of terminal, the second joint portion is located in the first joint portion.

3. The charging gun head as claimed in claim 2, wherein one of the first clamping part and the second clamping part is a groove, and the other is a protrusion, and the protrusion is arranged in the groove.

4. The charging gun head as claimed in claim 3, wherein the number of the grooves is at least two punctiform grooves, at least two of the grooves are arranged at intervals, and the protrusions are arranged corresponding to the grooves.

5. The charging gun head as claimed in claim 3, wherein the recess is an annular recess.

6. The charging gun head as claimed in claim 1, wherein the waterproof member is an insulating member.

7. The charging gun head as claimed in claim 1, wherein the waterproof member is integrally injection molded.

8. The charging gun head according to claim 1, wherein a seal groove is provided on an outer peripheral wall of the terminal;

the charging gun head further comprises a sealing piece, wherein the sealing piece is arranged in the sealing groove, and the peripheral wall of the sealing piece is in extrusion fit with the local inner wall of the wire passing cavity.

9. The charging gun head as claimed in any one of claims 1 to 8, wherein the wire passing chamber comprises:

the accommodating cavity is arranged in the shell; and

the plug-in cavity is arranged at one end, far away from the cable, of the shell, the plug-in cavity is communicated with the accommodating cavity through a plurality of through holes, and one wiring assembly penetrates through one through hole;

one end of the terminal, which is far away from the cable, penetrates through the through hole and stretches into the plug-in cavity so as to be matched with the plug-in end of the external socket.

10. A charging system, characterized in that it comprises a charging gun head according to any one of claims 1 to 9.