CN112038836A

CN112038836A - Novel structure of screwless rifle that charges

Info

Publication number: CN112038836A
Application number: CN202010909871.0A
Authority: CN
Inventors: 贾海峰; 徐扬; 于振军; 毕见宁; 王文霞; 丁青成; 张士明; 孙晓
Original assignee: Weihai Honglin Electric Power Technology Co ltd
Current assignee: Weihai Honglin Electric Power Technology Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2020-12-04

Abstract

The invention discloses a screw-free charging gun with a novel structure, which comprises a shell, wherein a cable assembly is arranged at the front end of the shell, a charging plug is arranged at the rear end of the shell, a switch assembly and an integrated hook button are arranged at the upper end of the shell, the switch assembly is in weak current connection with the charging plug, a reed pipe in the switch assembly is positioned below a magnet on the integrated hook button, and the magnet generates magnetic induction to realize the disconnection and the connection of the switch assembly. The charging gun has the advantages that the charging gun disclosed by the invention adopts a design method of a simple structure, a small size and a forward movement, all components are relatively independent and can be well subjected to physical/magnetic/electric connection, the connection between the charging plug and the shell and the connection between the shell and other structural parts are mainly in a welding and buckling structure, a large number of screws or rivets are omitted, the structure is simple, the material and mold development cost is saved, the integral protection performance can be ensured to reach IP67, and the charging gun can be applied to alternating current charging guns in various modes in the electric automobile industry.

Description

Novel structure of screwless rifle that charges

Technical Field

The invention relates to the field of electric automobile charging equipment, in particular to the field of an electric automobile charging gun with a novel structure without screws.

Background

With the continuous development of new energy automobiles, the technology and the quality of the new energy automobiles are continuously upgraded and improved, the holding capacity of new energy automobiles in domestic markets is continuously increased, and the requirements of charging system accessories matched with the new energy automobiles are inevitably increased. The charging guns of the electric automobile on the market are various in types, but the internal structures of a single gun part of the charging gun are mostly similar, a charging plug part at the head part of the charging gun is basically assembled into a component by adopting terminals and terminal brackets, then a terminal bracket component is pressed into a plug shell, and the charging plug and the terminal bracket component are mostly fixed by adopting buckle type compression joint or screw connection; charging plug and casing adopt the screw mode fixed, it also adopts screw or rivet mode to fix to control shell or upper and lower shell or the connection between integral type casing and the tailhood, the fixed all adopts the same mode of thunder of internals and electrical components to fix, this type of structure mode makes the structural component of rifle that charges a great deal, the assembly degree of difficulty and process have been increased, waste time and energy, material and mould development cost have been increased, be unfavorable for the simplification of rifle assembly process of charging, the volume and the weight of rifle that charge have been restricted indirectly, be unfavorable for the volume miniaturization of rifle that charges, it is lightweight.

Disclosure of Invention

In order to overcome the problems, the invention provides the charging gun with the novel structure without the screw, so that the problems are solved, the design and the manufacture of the charging gun for the electric automobile are simpler and more compact, the performance is more reliable, the cost is low, and the charging gun can be applied to alternating current charging guns in various modes in the electric automobile industry. The technical content of the method is as follows,

the utility model provides a screwless novel structure rifle that charges, includes the casing, the casing front end is equipped with cable subassembly, and the rear end is equipped with charging plug, and the upper end is equipped with switch module and integral type couple button, switch module and charging plug weak current are connected, the tongue tube in the switch module is located the below of the magnetite on the integral type couple, produces the disconnection and the closure that magnetism response realized switch module through the magnetite.

Further, the tip of integral type couple button is equipped with the head couple, and the top is equipped with the button, and the middle part is equipped with the couple hole, and the bottom is equipped with spacing seat of spring and magnetite, the spacing seat of spring is located the button below.

Further, the shell comprises an upper shell and a lower shell, and the upper shell comprises a hook mounting cavity, a charging plug mounting cavity and a cable assembly mounting cavity; the integrated hook key and the spring are arranged in the hook mounting cavity, the switch assembly and the charging plug are mounted in the charging plug mounting cavity, and the cable assembly is mounted in the cable assembly mounting cavity.

Further, the cable assembly comprises a cable, a waterproof plug and a fixed sleeve, and the cable penetrates through the waterproof plug and the fixed sleeve to be electrically connected with the charging plug; the waterproof plug is sleeved on the cable and contacts with the waterproof surface of the inner wall of the cable assembly mounting cavity at the tail part of the upper shell to form the sealing connection between the cable and the upper shell.

Furthermore, the fixed sleeve is provided with a radial limiting groove, and the waterproof plug is provided with a waterproof plug limiting block.

Further, the couple installation cavity is equipped with commentaries on classics pinhole and spring holder, integral type couple button passes the couple hole with the epitheca through changeing the round pin and connects in changeing the pinhole, makes integral type couple button can encircle the axis that changes the pinhole and carry out rotary motion on the epitheca, and spring mounting just is located under the spacing seat of spring on the spring holder.

Furthermore, the charging plug comprises a charging plug shell, a terminal, a plug sealing ring and a buckle; the charging plug is characterized in that a self-locking device is arranged on the charging plug shell, the terminal is directly inserted into the charging plug shell and locked, a terminal sealing ring is arranged between the terminal and the charging plug shell, the plug sealing ring is matched with the inner side wall of the charging plug installation cavity, the charging plug is connected with the upper shell in a sealing mode, and the buckle is buckled with the hook inside the charging plug installation cavity.

Furthermore, the lower shell is provided with a wire outlet hole, the cable assembly penetrates through the wire outlet hole, and the lower shell is pressed on the upper shell.

Furthermore, the fixing sleeve and the cable are fixed in an encapsulating injection molding, bonding or compression joint mode.

Furthermore, an anti-skid structure is arranged on the key.

Advantageous effects

The self-locking device is arranged at the joint of the charging plug shell and the terminal, the charging plug shell has a self-locking function to the terminal, and the terminal is directly inserted and fixed in the charging plug shell and locked, so that structural members such as a terminal support/a terminal gland and the like which are additionally arranged for fixing the terminal and a buckle structure or a fastening structure which is required for fixing the structural members are omitted.

The switch component in the switch component adopts the reed switch to replace a traditional physical button type microswitch, the reed switch and a magnetic field generated by the magnet on the integrated hook button mutually sense to realize the purposes of disconnection and connection, the microswitch is not required to be physically contacted, the switch component can be completely arranged in the shell of the charging gun, no hole is required to be formed, the water leakage point is reduced, and the integral protection performance of the charging gun is more facilitated.

Connecting between terminal and the charging plug, between charging plug and the casing, between the casing each other, between casing and other structures use welding, buckle structure as the main, and no metal fastener has saved a large amount of screws or rivets, and simple structure has saved material and mould development cost, has reduced the assembly process of the rifle that charges.

The hook and the key are designed into an integral hook key, the hook key is molded by adopting a high-strength glass fiber reinforced nylon material, the hook key is directly arranged at the upper end of the shell and simultaneously plays a role of a structural member and an appearance part of the upper cover, the hook and the key are not required to be manufactured by respectively opening a mold, the development cost and the material cost of the mold are saved, a structure for mutually connecting the hook and the key is not required to be designed, the strength and the size precision of the hook are enhanced by the simple design mode, the space required by partial structural design is saved, the assembly process is simplified, and the compact and miniaturized design of the alternating current charging gun is more facilitated;

the charging gun disclosed by the invention adopts a design method of a simple structure, a small size and a sport forever, the handle part at the tail part of the shell is designed in an ultrashort size, the tail part of the shell is designed into a handle structure in a design concept, the length of the alternating current charging gun is greatly shortened by the design method on the basis of ensuring the size of the handle, the appearance main body surface adopts a streamline design, the shell is smooth and well-arranged, the holding feeling is comfortable, and the length size of the alternating current charging gun is shortened by more than 5cm compared with the existing alternating current charging gun product in the market, so that the alternating current charging gun is integrally miniaturized, light, elegant and beautiful, and has the advantages of low cost, convenience in assembly, safety and reliability.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a perspective view of the present invention;

FIG. 4 is an exploded view of the present invention;

FIG. 5 is a schematic perspective view of the upper housing;

fig. 6 is a schematic perspective view of the charging plug mounting cavity;

FIG. 7 is a perspective view of the cable assembly mounting cavity;

fig. 8 is a perspective view of the lower case;

FIG. 9 is a perspective view of the cable assembly;

FIG. 10 is a perspective view of the switch assembly;

fig. 11 is a front view of the charging plug;

FIG. 12 is a cross-sectional view B-B of FIG. 11;

fig. 13 is a schematic perspective view of the charging plug;

FIG. 14 is a first perspective view of the integrated hook key;

FIG. 15 is a second perspective view of the integrated hook key;

in the figure: 1-upper shell; 11-a hook mounting cavity; 111-kingpin holes; 112-spring seats; 12-a charging plug mounting cavity; 13-a cable assembly mounting cavity; 131-inner wall waterproof surface; 132-a waterproof plug limiting groove; 2-a lower shell; 21-outlet hole; 3-a cable assembly; 31-a cable; 32-a waterproof plug; 321-a waterproof plug limiting block; 33-fixing the sleeve; 331-a radial limiting groove; 4-a switching assembly; 41-reed pipe; 42-a circuit board; 5-a charging plug; 51-charging plug housing; 52-terminal; 521-terminal sealing ring; 53-plug seal ring; 54-buckling; 6-integrated hook key; 61-head hook; 62-key press; 63-hook hole; 64-a magnet; 65-spring limit seat; 7-a spring; 8-rotating pin.

Detailed Description

In order that the above-recited objects, features and advantages of the present application may be more clearly understood, a more particular description of the present application will be rendered by reference to the appended drawings, which are illustrated in fig. 1-15, and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.

As shown in fig. 1-15, a novel screwless structure charging gun, includes the casing, the casing front end is equipped with cable subassembly 3, and the rear end is equipped with charging plug 5, and the upper end is equipped with switch module 4 and integral type couple button 6, switch module 4 and charging plug 5 weak current are connected, tongue tube 41 in switch module 4 is located the below of the magnetite 64 of integral type couple 6, produces the magnetic induction through magnetite 64 and realizes the disconnection and the closure of switch module 4.

As shown in fig. 5-7, the housing includes an upper housing 1 and a lower housing 2, and the upper housing 1 includes a hook mounting cavity 11, a charging plug mounting cavity 12, and a cable assembly mounting cavity 13; the integrated hook key 6 and the spring 7 are arranged in the hook mounting cavity 11, the switch component 4 and the charging plug 5 are mounted in the charging plug mounting cavity 12, and the cable component 3 is mounted in the cable component mounting cavity 13.

As shown in fig. 9, the cable assembly 3 includes a cable 31, a waterproof plug 32, a fixing sleeve 33; the cable 31 passes through the waterproof plug 32 and the fixing sleeve 33 to be electrically connected with the charging plug 5, the cable component mounting cavity 13 is provided with a waterproof plug limiting groove 132, the inner wall of the waterproof plug limiting groove 132 is surrounded to form an inner wall waterproof surface 131, the waterproof plug 32 is provided with a plurality of waterproof plug limiting blocks 321 which are uniformly distributed, and the fixing sleeve 33 is provided with a radial limiting groove 331; waterproof plug 32 is sleeved on cable 31 and contacts with waterproof surface 131 of inner wall of cable assembly installation cavity 13 at the tail of upper shell 1 to form sealing connection between cable 31 and upper shell 1, and waterproof surface 131 of inner wall and waterproof plug 32 are in compression fit to a certain extent to ensure sealing connection between cable 31 and upper shell 1. The waterproof plug limiting groove 132 and the waterproof plug limiting block 321 cooperate to form the only fixing position of the waterproof plug 32 in the radial direction and the axial direction. The fixing sleeve 33 and the cable 31 are of an integral fixing structure, the fixing sleeve 33 is provided with a radial limiting groove 331, and end faces (not marked in the figure) at two sides of the fixing sleeve 33 and the radial limiting groove 331 are fixed in the cable component mounting cavity 13 to form a radial and axial unique fixing position of the cable component 3 in the upper shell 1. The fixing sleeve 33 and the cable 31 can be fixed integrally by means of injection molding, bonding or crimping.

As shown in fig. 10, the switch assembly 4 includes a reed switch 41 and a circuit board 42, and the switch assembly 4 is weakly electrically connected to the charging plug 5. As shown in fig. 14 and 15, the integrated hook button 6 is provided with a head hook 61, a button 62, a hook hole 63, a magnet 64 and a spring stopper 65; as shown in fig. 5, the hook mounting cavity 11 is provided with a rotating pin hole 111 and a spring seat 112, the rotating pin 8 passes through the hook hole 63 to connect the integrated hook button 6 to the rotating pin hole 111, so that the integrated hook button 6 can rotate around the axis of the rotating pin hole 111 on the upper case 1, and the spring 7 is mounted on the spring seat 112 and located below the spring stopper 65. The switch assembly 4 is inserted and fixed in the charging plug mounting cavity 12 along two side edges (not marked in the figure) of the circuit board. As shown in fig. 2 and fig. 15, the magnet 64 on the integrated hook button 6 and the reed switch 41 on the switch component 4 have only corresponding adjacent relative positions in the vertical direction, the reed switch 4 is under the magnetic field cage of the magnet 64, when the button 62 is pressed downwards, the head hook 61 and the magnet 64 at the other end of the hook hole 63 are lifted up by a certain height at the same time, the spring 7 is compressed, the magnet 64 is far away from the reed switch 41, the reed switch 41 senses the change of the magnetic field, the internal circuit of the reed switch 41 is disconnected, the current cannot be conducted, and further the circuit between the switch component 4 and the charging plug 5 is disconnected; the key 62 is loosened, the integrated hook key 6 resets under the rebound action of the spring 7, the head hook 61 and the magnet 64 at the other end of the hook hole 63 fall to the initial position simultaneously, the magnetic field of the reed switch 41 is restored to the original state, the internal circuit of the reed switch 41 is closed, the circuit between the switch component 4 and the charging plug 5 is conducted, and therefore the charging control of the switch component 4 to the charging plug 5 is achieved. The key 62 is provided with a rib to play a role of anti-slip.

As shown in fig. 11 to 13, the charging plug 5 includes a charging plug housing 51, a terminal 52, a plug seal 53, and a latch 54. The charging plug shell 51 is provided with a self-locking device, the terminal 52 has a self-locking function, the terminal 52 is directly inserted and fixed in the charging plug shell 51 and locked, and the terminal sealing ring 521 is installed between the terminal 52 and the charging plug shell 51 to realize sealing connection. Insert charging plug 5 into charging plug installation cavity 12, buckle 54 and the inside trip (not sign in the figure) one-to-one lock of charging plug installation cavity 12 are connected charging plug 5 and epitheca 1 fixedly, and plug sealing washer 53 cooperates with the inside wall (not sign in the figure) of charging plug installation cavity 12, realizes charging plug 5 and epitheca 1's sealing connection.

As shown in fig. 8, the lower case 2 is provided with an outlet hole 21, the cable assembly 3 passes through the outlet hole 21, and the lower case 2 is press-fitted onto the upper case 1. The combination of the upper shell 1 and the lower shell 2 recommends adopting the welding mode, and the connection leakproofness of the upper shell 1 and the lower shell 2 is guaranteed. The joining of the upper shell 1 to the lower shell 2 can likewise be effected in other ways, for example by gluing.

Head couple 61 and button 62 design formula couple button as an organic whole, adopt the fine nylon materials shaping of strengthening of high strength glass, direct mount has born the effect of component and upper cover outward appearance piece simultaneously in the casing upper end.

2 afterbody designs into handle structure of inferior valve, and this design has greatly shortened the length of exchanging the rifle that charges on the basis of guaranteeing the handle size.

The above description is only a preferred embodiment of the present invention, and the structure, connection manner and features of the charging gun with a novel screwless structure are explained, but it should not be construed as limiting the scope of the present invention. The structural diagrams or concepts designed by the invention or the direct and indirect application in other related technical fields are all included in the scope of the patent protection of the invention.

Claims

1. The utility model provides a screwless novel structure rifle that charges, a serial communication port, which comprises a housin, the casing front end is equipped with cable subassembly, and the rear end is equipped with charging plug, and the upper end is equipped with switch module and integral type couple button, switch module and charging plug light current are connected, the tongue tube in the switch module is located the below of the magnetite on the integral type couple, produces magnetic induction through the magnetite and realizes switch module's disconnection and closure.

2. The charging gun with novel screwless structure as claimed in claim 1, wherein the integrated hook button has a head hook at its end, a button at its top, a hook hole at its middle, a spring-limiting seat and a magnet at its bottom, and the spring-limiting seat is located under the button.

3. The screwless charging gun with the novel structure as claimed in claim 2, wherein the housing comprises an upper shell and a lower shell, and the upper shell comprises a hook mounting cavity, a charging plug mounting cavity and a cable assembly mounting cavity; the integrated hook key and the spring are arranged in the hook mounting cavity, the switch assembly and the charging plug are mounted in the charging plug mounting cavity, and the cable assembly is mounted in the cable assembly mounting cavity.

4. The screwless charging gun with novel structure as claimed in claim 3, wherein the cable assembly comprises a cable, a waterproof plug and a fixing sleeve, and the cable passes through the waterproof plug and the fixing sleeve to be electrically connected with the charging plug; the waterproof plug is sleeved on the cable and contacts with the waterproof surface of the inner wall of the cable assembly mounting cavity at the tail part of the upper shell to form the sealing connection between the cable and the upper shell.

5. The screwless charging gun with novel structure as claimed in claim 4, wherein the fixing sheath is provided with a radial limiting groove, and the waterproof plug is provided with a waterproof plug limiting block.

6. The screwless charging gun with novel structure as claimed in claim 3, wherein the hook mounting cavity is provided with a pivot hole and a spring seat, the integrated hook button and the upper shell are connected to the pivot hole through the hook hole by a pivot pin, so that the integrated hook button can rotate around the axis of the pivot hole on the upper shell, and the spring is mounted on the spring seat and under the spring limiting seat.

7. The screwless new construction charging gun according to claim 3, wherein the charging plug comprises a charging plug housing, a terminal, a plug gasket; the charging plug is characterized in that a self-locking device is arranged on the charging plug shell, the terminal is directly inserted into the charging plug shell and locked, a terminal sealing ring is arranged between the terminal and the charging plug shell, and the plug sealing ring is matched with the inner side wall of the charging plug installation cavity to realize the sealing connection of the charging plug and the upper shell.

8. The screwless new construction charging gun according to claim 3, wherein the lower shell is provided with an outlet hole through which the cable assembly passes, and the lower shell is press-fitted over the upper shell.

9. The screwless novel structure rifle that charges of claim 4, characterized by: the fixing sleeve and the cable are fixed in a rubber coating injection molding, bonding or compression joint mode.

10. The screwless charging gun of claim 2, wherein the button has an anti-slip structure.