CN219163835U

CN219163835U - Discharge gun assembly

Info

Publication number: CN219163835U
Application number: CN202223535238.3U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-09
Anticipated expiration: 2032-12-29
Also published as: WO2024140848A1

Abstract

The utility model discloses a discharge gun assembly, including the casing subassembly, set up in discharge plug in the casing subassembly, set up in at least one terminal in the discharge plug, with at least one the cable of terminal electricity connection, and with the socket of cable electricity connection, the terminal is used for being connected with car end power supply unit electricity, the socket is used for being connected with outside with the electrical apparatus electricity, the terminal with after the cable electricity is connected by discharge plug cladding integrated into one piece, the casing subassembly riveting connection. According to the discharging gun assembly, when the discharging plug is connected with the interface (discharging vehicle socket) of the vehicle-end power supply device such as an alternating current vehicle-mounted discharging machine, the discharging process of the vehicle-end alternating current to the load can be realized, the discharging plug is integrally formed by wrapping the terminal and the cable, the integral tightness and the light weight are ensured, the shell assembly is in riveted connection, the process equipment is simple, the connection strength is high, the compactness is good, and the connection cost is low.

Description

Discharge gun assembly

Technical Field

The utility model relates to the technical field of automobile charging and discharging, in particular to a discharging gun assembly.

Background

The electric appliances on the market generally need to be connected to the power grid to supply power by the power grid, but once emergency situations such as power shortage, power outage and the like occur in the power grid, the electric appliances cannot be used.

As a movable distributed energy storage device, electric vehicles have considerable stored electric energy due to the large number. Therefore, the electric energy in the electric automobile in the idle state is effectively utilized, and the problem that the automobile discharges to the load is needed to be solved at present.

In addition, the current charge and discharge guns are assembled by terminals, a shell, a base body and the like. The gun has the defects of more required assembly parts, poor sealing performance, heavier gun body and higher cost.

Disclosure of Invention

The object of the present utility model is to provide a discharge gun assembly for realizing the direct discharge process of a vehicle end to a load, and simultaneously reducing the production and manufacturing costs of the discharge gun assembly, and improving the tightness and the light weight performance.

The utility model provides a rifle subassembly discharges, include the casing subassembly, set up in discharge plug in the casing subassembly, set up in at least one terminal in the discharge plug, with at least one the cable that the terminal electricity is connected, and with the socket that the cable electricity is connected, the terminal is used for being connected with car end power supply unit electricity, the socket is used for being connected with outside with electric apparatus electricity, the terminal with after the cable electricity is connected by discharge plug cladding integrated into one piece, the casing subassembly riveting is connected.

Preferably, the housing assembly comprises a first housing and a second housing, the first housing and the second housing are provided with through holes which are arranged in a plurality of aligned modes, and a plurality of riveting pieces penetrate through the through holes which are arranged in the aligned modes one by one and are riveted so as to rivet and connect the first housing and the second housing.

Preferably, the inner surface of one of the first housing and the second housing is provided with a positioning column, a first through hole penetrating through the housing wall is formed in the positioning column, a second through hole aligned with the first through hole is formed in the housing wall of the other one of the first housing and the second housing, and the riveting piece penetrates through the first through hole and the second through hole and is riveted so as to connect the first housing with the second housing in a riveting manner.

Preferably, the rivet includes a rivet having a hollow cavity and a plastic member penetrating the hollow cavity, the rivet having a head portion and a tail portion, the plastic member exposing the tail portion, the head portion being inserted from the second through hole side and passing through the first through hole, and the rivet tool pulling the plastic member from the second through hole side causing the plastic member to expand the tail portion to rivet the first and second housings.

Preferably, the shell component is further provided with a stop piece and a micro switch, the stop piece is connected with the shell component through at least one fixing pin, the micro switch is connected with an elastic sheet, one end of the stop piece is jacked up in the process that the butt joint end of the vehicle end power supply device is inserted into the discharging plug, and the other end of the stop piece moves downwards to drive the elastic sheet to trigger the micro switch.

Preferably, the housing assembly is provided with a relief opening, the other end of the stopper is movable in the relief opening, and the other end closes the relief opening when the stopper is in an initial state.

Preferably, a positioning plate is arranged on the inner wall of the shell assembly, which is positioned below the avoidance opening, one end of an elastic piece is fixed on the positioning plate, and the other end of the elastic piece is abutted against the other end of the stop piece.

Preferably, the elastic member is configured to be compressed during insertion of the docking end into the discharge plug, and to resume deformation after insertion of the docking end into place to return the stopper to an initial state.

Preferably, the micro switch is disposed on an inner wall of the housing assembly and below the elastic member.

Preferably, the free end of the elastic piece is in contact with the stopper in a natural state.

According to the discharge gun assembly disclosed by the utility model, the following beneficial effects are brought:

1. when the discharging plug is connected with an interface (discharging vehicle socket) of a vehicle-end power supply device such as an alternating current vehicle-mounted discharging machine, the discharging process of the vehicle-end alternating current to the load can be realized by carrying out connection confirmation of an alternating current V2L charging and discharging connection device and judgment of rated current parameters through a discharging control guide circuit of an alternating current V2L mode disclosed by GBT 18487.4-2021.

2. The discharge plug wraps the terminal and the cable integrated into one piece, has guaranteed whole leakproofness and lightweight, and the casing subassembly is riveted and is connected, and process equipment is simple, and joint strength is high, and the compactness is good, and connecting cost is low.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is a perspective exploded view of a discharge gun assembly according to a preferred embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a discharge plug in the discharge gun assembly;

FIG. 3 is a perspective view of the terminal of FIG. 1;

FIG. 4 is an enlarged view of a portion A of FIG. 2;

fig. 5 is a schematic illustration of the staking element.

The figures are marked as follows:

1-a handle; 2-a first housing; 3-an elastic member; 4-butting a cavity; 5-a plug body; 6-terminal; 7-a fastener; 8-a stopper; 9-a second housing; 10-a cable; 11-a socket; 12-a micro switch; 121-an elastic sheet; 13-a first arm; 14-arc arms; 15-a second arm; 16-sealing rings; 17-a dodge opening; 18-positioning plates; 19-rivets; 20-plastic parts; 21-positioning columns; 22-a first through hole; 61-contact; 62-connecting part; 63-annular ribs; 64-step; 65-compartment; 91-a second through hole; 601-a charging terminal; 602-signal terminals.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

As shown in fig. 1 and 2, there is provided a discharge gun assembly, including a housing assembly, a discharge plug provided in the housing assembly, at least one terminal 6 provided in the discharge plug, a cable 10 electrically connected with the terminal 6, and a socket 11 electrically connected with the cable 10, the terminal 6 being electrically connected with a vehicle-end power supply device, the socket 11 being electrically connected with an external electrical appliance, the terminal 6 being integrally covered by the discharge plug after being electrically connected with the cable, the housing assembly being riveted.

From this, discharge plug cladding terminal 6 and cable 10 integrated into one piece have guaranteed whole leakproofness and lightweight, and the casing subassembly riveting is connected, and process equipment is simple, and joint strength is high, and the compactness is good, and connecting cost is low.

Specifically, as shown in fig. 3, the terminal 6 may be a press-formed structure.

Thus, when the discharging plug is connected with an interface (discharging vehicle socket) of a vehicle-end power supply device such as an alternating-current vehicle-mounted discharging machine, the discharging process of the vehicle-end alternating current to a load can be realized; meanwhile, the terminal processed by adopting the stamping mode has simple processing mode and low working time, can keep the conductive property and the elastic property of the material, and can also reduce the processing and manufacturing cost of the discharge gun assembly.

Specifically, as shown in fig. 3, at least one terminal 6 includes a charging terminal 601 and a signal terminal 602, and the size of the charging terminal 601 is larger than the size of the signal terminal 602.

More specifically, the charging terminal 601 may include: PE terminal, L terminal, N terminal. The signal terminals 602 may include a CC signal (connection confirm) terminal and a CP signal (control pilot function) terminal.

The CC signal is a connection confirmation signal during vehicle-mounted charging, and the type of the gun is determined by detecting a voltage condition of the CC signal, that is, whether the charging gun or the discharging gun is a charging gun or a discharging gun, and whether the charging gun or the discharging gun is already inserted. And the gun head in the CC signal is also provided with an RC resistor, the RC resistor reflects the capacity of the gun cable, the thicknesses of the cables are different from each other, and the maximum current which can be born by the cable needs to be judged at the same time.

The CP signal is collectively referred to as a control guidance function signal (control pilot function), which is mainly used for monitoring the function of interaction between an electric vehicle and an electric vehicle power supply device (charging pile)/external electric equipment (load). The CP signal is specifically a handshake signal between the car and the charging stake/external load, a communication mode using PWM modulation and amplitude alternation.

Next, a specific structure of the terminal 6 will be described in detail with reference to fig. 1 and 3. Since the charging terminal 601 and the signal terminal 602 each include the contact portion 61, the stopper portion, and the connecting portion 62, the naming of the contact portions and the like is not differentiated when describing the related structure.

As shown in fig. 3, the terminal includes a contact portion 61, a limit portion, and a connection portion 62, which are sequentially provided, the contact portion 61 is used for electrically connecting with a vehicle-end power supply device (for example, an ac vehicle-mounted discharge machine), the connection portion 62 is used for electrically connecting with a cable, and the contact portion 61, the limit portion, and the connection portion 62 are integrally press-molded.

As shown in fig. 3, the contact portion 61 is formed as a first cylindrical body, the connection portion 62 is formed as a second cylindrical body, and the maximum diameter of the second cylindrical body is larger than that of the first cylindrical body, and a step portion 64 is formed at the connection portion of the first cylindrical body and the second cylindrical body.

More specifically, in some embodiments, the maximum diameter of the first cartridge is 2.4mm-4.8mm, and/or the maximum diameter of the second cartridge is 3.4mm-6.2mm.

The terminals 6 herein may include a charging terminal 601 and a signal terminal 602 in particular. Thus, more specifically, it will be appreciated that in some embodiments, the maximum diameter of the first barrel of the charging terminal 601 may be 3.6mm-4.8mm. Preferably, in the present embodiment, the maximum diameter of the first cylindrical body of the charging terminal 601 is 3.96mm.

Similarly, in some embodiments, the maximum diameter of the second barrel of the charging terminal 601 may be 4.8mm-6.2mm. Preferably, in the present embodiment, the maximum diameter of the second cylindrical body of the charging terminal 601 is 5.95mm.

Similarly, in some embodiments, the maximum diameter of the first barrel of the signal terminal 602 may be 2.4mm-3.4mm. Preferably, in the present embodiment, the maximum diameter of the first cylindrical body of the signal terminal 602 is 2.48mm.

Similarly, in some embodiments, the maximum diameter of the second barrel of the signal terminal 602 may be 3.4mm-4.2mm. Preferably, in the present embodiment, the maximum diameter of the second cylindrical body of the signal terminal 602 is 3.57mm.

It will be appreciated that the dimensions of the cylinders of the charging terminals 601 and the signal terminals 602 may be set according to actual requirements (e.g., butt terminal dimensions), and the specific values of the dimensions are not limited herein.

In some embodiments, the wall thickness of the first cartridge is 0.235mm-0.512mm and/or the wall thickness of the second cartridge is 0.435mm-0.756mm. It will be appreciated that when the thickness is less than 0.235mm, the elasticity of the terminal is insufficient, and when the thickness is more than 0.756mm, the difficulty of deformation increases, and the processing is more difficult, which is not significant for practical production.

It will be appreciated that the dimensions of the wall thicknesses of the charging terminal 601 and the signal terminal 602 may be set according to actual requirements, and the specific values of the dimensions are not limited herein. In general, the wall thickness of the second cylindrical body may be set to be larger than that of the first cylindrical body.

With continued reference to fig. 3, the terminal 6 stopper includes at least two annular ribs 63 protruding radially from the outer surface of the first cylindrical body, the annular ribs 63 being disposed at intervals along the axial direction of the first cylindrical body.

More specifically, the seal ring 16 is provided between the adjacent annular ribs 63. Thus, when the terminal is positioned in the mating cavity, sealability can be ensured.

Wherein a space 65 is formed between the annular rib 63 closest to the step 64 and the step 64 of the at least two annular ribs 63. The terminals may be positioned into the mating cavity through the spacer cavity 65.

The annular rib 63 farthest from the step 64 of the at least two annular ribs 63 is for abutting with the abutting end of the vehicle-end power supply device. It will be appreciated that the length dimension from the mating end of the contact portion 61 of the terminal to the abutment surface of the annular rib 63 is dependent upon the depth of the terminal receptacle body in the mating end of the vehicle end power unit to ensure that the aperture edge of the receptacle body abuts the abutment surface of the annular rib 63 after the contact portion 61 of the terminal is inserted into the receptacle body. Thereby, the stability of the electrical connection between the terminals is ensured.

In some embodiments, as shown in fig. 3, the end of the connection portion 62 of the charging terminal 601 may have a truncated cone shape or a spherical shape according to actual needs. The diameter of the second cylindrical body of the signal terminal 602 may also be changed stepwise according to actual needs, so as to better ensure stability of signal transmission.

Referring back to fig. 1 and 2, the housing assembly includes a first housing 2 and a second housing 9, the first housing 2 and the second housing 9 having a plurality of aligned through holes, and a plurality of rivets passing through the aligned through holes one by one and being riveted to rivet the first housing 2 and the second housing 9.

Specifically, as shown in fig. 5, the inner surface of one of the first housing 2 and the second housing 9 is provided with a positioning post 21, a first through hole 22 penetrating through the housing wall is opened in the positioning post 21, the housing wall of the other of the first housing 2 and the second housing 9 is provided with a second through hole 91 aligned with the first through hole 22, and a rivet passes through the first through hole 22 and the second through hole 91 and is riveted to connect the first housing 2 and the second housing 9.

More specifically, as shown in fig. 5, the rivet member includes a rivet 19 having a hollow cavity and a plastic member 20 penetrating the hollow cavity, the rivet 19 having a head portion and a tail portion, the plastic member 20 exposing the tail portion, the head portion being inserted from the second through hole 91 side and passing through the first through hole 22, and the rivet tool pulling the plastic member 20 from the second through hole 91 side to expand the tail portion of the plastic member 20 to rivet the first housing 2 and the second housing 9.

Referring back to fig. 1, as shown in fig. 1, the discharge plug includes a mating cavity 4, the ends of terminals 6 are positioned and mounted into the mating cavity 4, and the tail portions of the terminals are crimped or soldered to the cable 10. Therefore, the terminal 6 is arranged in the butt joint cavity 4, so that the terminal 6 can be prevented from being excessively exposed to the outside, and the terminal 6 is protected.

Further, the discharging plug further comprises a plug body 5, and the plug body 5 is coated with the butt-joint cavity 4, the plurality of terminals 6 and the cable 10 to be integrally injection molded into a single integral part.

Therefore, the tightness of the discharge gun assembly is ensured, and the weight of the discharge gun assembly is improved.

Further, the discharging gun assembly further comprises a dust cover and a handle 1, the dust cover is connected with the handle 1 through an elastic body, the handle 1 wraps the tail end of the cable 10 and is arranged between the first shell 2 and the second shell 9, and the dust cover detachably covers the butt joint cavity 4. Thereby, external impurities and the like can be prevented from entering the docking chamber 4.

Further, as shown in fig. 2 and fig. 4, a stop member 8 and a micro switch 12 are further disposed between the first housing 2 and the second housing 9, the stop member 8 is connected with the housing assembly through at least one fixing pin, the micro switch is connected with an elastic piece 121, one end of the stop member 8 is jacked up in the process of inserting the docking end of the vehicle end power supply device into the docking cavity 4, and the other end of the stop member 8 moves downwards to drive the elastic piece 121 to trigger the micro switch.

Specifically, the housing assembly is provided with a relief opening 17, the other end of the stopper 8 is movable in the relief opening 17, and the other end closes the relief opening 17 when the stopper 8 is in the initial state.

More specifically, the inner wall of the housing assembly below the escape opening 17 is provided with a positioning plate 18, one end of an elastic member 3 is fixed to the positioning plate 18, and the other end abuts against the other end of the stopper 8.

The resilient member 3 is configured to be compressed during insertion of the docking end into the docking cavity 4 and to resume deformation after insertion of the docking end into place to reset the stopper 8 to an initial state. It will be appreciated that fig. 2 is an illustration of the stopper 8 in an initial state.

Further, the micro switch is disposed on the inner wall of the housing assembly and below the elastic member 3. The free end of the elastic piece 121 contacts the stopper 8 in a natural state.

Specifically, the stopper 8 includes a first arm 13 extending toward the abutting end of the vehicle end power supply device, an arc-shaped arm 14 extending from the tip end of the first arm 13, and a second arm 15 continuing from the tip end of the arc-shaped arm 14, the extending direction of the first arm 13 being different from the extending direction of the second arm 15.

Therefore, in the process of inserting the butt end into the butt cavity 4, the first arm 13 is jacked up, and the arc-shaped arm 14 can be driven to be pressed down and trigger the micro switch 12.

It will also be appreciated that during the insertion of the docking end into the docking cavity 4, the first arm 13 is lifted upwards, being the arc apex of the arc arm 14 in pressure contact with the elastic tab 121 of the microswitch 12.

More specifically, the arc-shaped arm 14 is recessed toward the inner space of the plug body 5.

As shown in fig. 2, in the space formed by the first housing 2 and the second housing 9, the space formed by the recess of the arc-shaped arm 14 is provided with a fixing pin, and at the same time, the fixing pin is also provided below the first arm 13, whereby the stopper 8 can be fixed in a limited position.

In addition, in the process of inserting the butt joint end into the butt joint cavity 4, the first arm 13 is jacked up, so that the second arm 15 can more easily press the elastic piece 3 downwards, the elastic piece 3 is elastically deformed as much as possible, and the resetting of the stop piece 8 is further facilitated in the process of recovering the deformation of the elastic piece 3.

The installation process of the discharge gun assembly provided herein is as follows:

s1: the terminal 6 is connected with the cable 10, an insulating layer is removed from one end of the cable 10, and the terminal 6 is connected with the cable 10, and crimping, welding or a mode of crimping and welding combination can be used;

s2: the terminal 6 is installed, the terminal 6 is inserted into the corresponding hole of the butt joint cavity 4, and the terminal 6 can be clamped in the hole by using the back-off buckle on the terminal 6 to prevent falling off;

s3: connecting the micro switch 12 with the outside through a wire;

s4: placing the connected terminals 6, the cables 10 and the butting cavity 4 into corresponding moulds, and performing injection molding to form a plug body 5; injection molding is carried out by using PA66 plus 25 percent GF material, the mold temperature is between 60 and 95 ℃, the injection molding temperature is between 250 and 275 ℃, the injection molding pressure is between 120 and 200MPa, the back pressure is between 0.17 and 0.35MPa, the screw rotating speed is between 30 and 60rpm, the molding period is 65S, and the injection molding time is between 8 and 12S;

s5: cooling, namely cooling the plug body 5 formed by injection molding of S4 by more than 4H, and fully cooling the plug body;

s6: the positioning piece 8, the micro switch 12, the first shell 2, the second shell 9 and the elastic piece 3 are arranged, the positioning piece 8 is arranged at the corresponding positions in the two shells, the elastic piece 3 is arranged below the right end of the positioning piece 8 and is connected through a fixing pin, and meanwhile, the micro switch 12 can be triggered when the positioning piece 8 is pressed down;

s7: placing the injection molded plug body 5 into a mold for injection molding the wrapping layer, performing injection molding processing of the wrapping layer on the surface and the tail part (namely, forming a handle and a dust cover) of the plug body 5 by using TPU materials, wherein the mold temperature is between 30 and 60 ℃, the injection molding temperature is between 170 and 230 ℃, the injection molding pressure is between 50 and 110MPa, the back pressure is between 0.15 and 0.25MPa, the screw rotating speed is between 20 and 40rpm, the molding period is 43S, and the injection molding time is between 5 and 8S;

s8: the discharge plugs completed in S1-S7 are connected to the socket 11 through the cable 10.

The said method can raise the strength of the discharge plug greatly and has excellent waterproof and sealing performance.

According to the discharging gun assembly, when the discharging plug is connected with an interface (discharging vehicle socket) of a vehicle-end power supply device such as an alternating current vehicle-mounted discharging machine, connection confirmation and rated current parameter judgment of an alternating current V2L charging and discharging connecting device are carried out through a discharging control guide circuit of an alternating current V2L mode disclosed by GBT18487.4-2021, and then a discharging process of the vehicle-end alternating current to a load can be achieved.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. The utility model provides a discharge rifle subassembly, its characterized in that includes the casing subassembly, set up in discharge plug in the casing subassembly, set up in at least one terminal in the discharge plug, with at least one the cable of terminal electricity connection, and with the socket of cable electricity connection, the terminal is used for being connected with car end power supply unit electricity, the socket is used for being connected with outside electrical apparatus electricity, the terminal with after the cable electricity is connected by discharge plug cladding integrated into one piece, the casing subassembly riveting connection.

2. The discharge gun assembly of claim 1, wherein the housing assembly includes a first housing and a second housing, the first housing and the second housing having a plurality of aligned through holes, a plurality of rivets passing one-to-one through the aligned through holes and being riveted to rivet the first housing to the second housing.

3. The discharge gun assembly of claim 2, wherein an inner surface of one of the first and second housings is provided with a positioning post in which a first through hole is opened through a housing wall, a housing wall of the other of the first and second housings is provided with a second through hole aligned with the first through hole, and the rivet passes through the first and second through holes and rivets to connect the first and second housings.

4. The discharge gun assembly of claim 3 wherein the rivet includes a rivet having a hollow cavity and a plastic member disposed therethrough, the rivet having a head and a tail, the plastic member exposing the tail, the head being inserted from the second through hole side and through the first through hole, a riveting tool pulling the plastic member from the second through hole side causing the plastic member to expand the tail to rivet the first and second housings.

5. The discharge gun assembly according to claim 1, wherein a stop member and a micro switch are further arranged in the housing assembly, the stop member is connected with the housing assembly through at least one fixing pin, the micro switch is connected with an elastic sheet, one end of the stop member is jacked up in the process that the butt end of the vehicle end power supply device is inserted into the discharge plug, and the other end of the stop member moves downwards to drive the elastic sheet to trigger the micro switch.

6. The discharge gun assembly of claim 5 wherein said housing assembly defines a relief opening, said other end of said stopper being movable within said relief opening, said other end closing said relief opening when said stopper is in an initial condition.

7. The discharge gun assembly as recited in claim 6 wherein a positioning plate is provided on an inner wall of the housing assembly below the relief opening, one end of an elastic member being secured to the positioning plate and the other end abutting the other end of the stopper.

8. The discharge gun assembly of claim 7, wherein the resilient member is configured to be compressed during insertion of the docking end into the discharge plug and to resume deformation after insertion of the docking end into place to reset the stopper to an initial state.

9. The discharge gun assembly of claim 7, wherein the micro-switch is disposed on an inner wall of the housing assembly and below the resilient member.

10. The discharge gun assembly of claim 9 wherein the free end of the resilient tab contacts the stopper in a natural state.