TWI764390B - Charging gun - Google Patents

Abstract

A charging gun having a grip, an electrical connector and a cable base is provided. The grip is tubular and has a front opening and a rear opening at two ends thereof. The grip has a first half-tube and a second half-tube closed with each other along a longitudinal direction thereof. The first half-tube has a first hook and grooves extending along edges thereof for connecting the second half-tube. The second half-tube has a second hook and ribs extending along edges thereof for connecting the first half-tube. The ribs are loosely matched in the grooves, and a sealant is filled in gaps between the ribs and the grooves. The first hook latched with the second hook to tighten the first half-tube and the second half-tube. The electrical connector is arranged at the front opening, and the cable base is arranged at the rear opening.

Description

charging gun

The present invention relates to, in particular, a charging gun, a glue-dispensing waterproof charging gun.

The waterproof mechanism of the existing charging gun is generally to assemble the shell with rivets or screws, and then seal the joints between the shell parts with adhesive strips. However, in order to achieve higher waterproof requirements, the current enhanced waterproof mechanism enhances the waterproof ability by filling the grip with rubber material.

However, the assembly method of pouring glue needs to install the components into the shell and close the shell, and then inject glue from the holes of the shell. Therefore, it is not easy to complete the assembly by automatic machinery, and the injected glue is also easy to be filled due to insufficient filling. Forming pores and causing water leakage. Furthermore, the assembly of rivets or screws is not easy to be accomplished by automated machinery.

Therefore, the glue-filled waterproof structure increases the manufacturing cost, weight, and assembly yield of the charging gun, and it is difficult to automate assembly.

In view of this, the inventor of the present invention has devoted himself to the study of the above-mentioned prior art and cooperated with the application of theories, trying his best to solve the above-mentioned problems, which is the goal of the present inventor's improvement.

The invention provides a glue-dispensing waterproof charging gun.

The invention provides a charging gun, which includes a handle, an electrical connector and a wiring seat. The handle is tubular, one end of the handle has a front opening, the other end of the handle has a rear opening, and the handle includes a first half pipe and a second half pipe that are relatively closed along the longitudinal direction of the handle. The half-pipe is provided with a channel, the channel extends along the edge of the first half-pipe to engage the second half-pipe, the first half-pipe is provided with a first hook portion, the second half-pipe is provided with a convex rib, and the convex rib runs along the first half-pipe. The edges of the two half-pipes extend to join the first half-pipe, the second half-pipe is provided with a second hook portion, the groove is filled with a sealant, the convex rib is embedded in the groove and the convex rib is loosely fitted with the groove, and the sealant Filling the gap between the protruding rib and the groove, the first hook portion is fastened to the second hook portion to compress the first half-pipe and the second half-pipe. The electrical connector is arranged on the front opening of the handle. The wiring seat is arranged on the rear opening of the handle.

In the charging gun of the present invention, a positioning seat is protruded on the inner wall of the second half-pipe, and a controller electrically connected to the electrical connector is arranged on the positioning seat. A pressing block is protruded on the inner wall of the first half-pipe corresponding to the controller, and the pressing block presses and fixes the controller on the positioning seat. The charging gun of the present invention further comprises a plastic block and a switch, the plastic block is sandwiched between the first half-pipe and the first half-pipe, and the switch is embedded in the plastic block and penetrates through the plastic block so that the switches are respectively exposed in the handle and the handle, and the switch is electrically connected to the controller. The handle is provided with a hook, the middle section of the hook is pivotally connected to the outer side wall of the handle, one end of the hook forms a claw, and the claw is arranged on one side of the electrical connector. When the hook pivots, the claw is away from the electrical connection. The other end of the hook can touch the switch.

In the charging gun of the present invention, a cone ring and a flange are arranged on the outer side wall of the electrical connector, an inner cone surface is arranged on the inner side wall of the handle corresponding to the cone ring, and a ring is arranged between the flange and the inner edge of the front opening. The rubber ring is attached to the inner cone surface and pushes against the cone ring to push the flange to the front opening. The inner side wall of the handle is protruded with a pin, the pin is inserted into the electrical connector along the horizontal direction of the electrical connector, and there is a gap between the pin and the electrical connector in the longitudinal direction of the electrical connector to allow the rubber ring to deform before and after the electrical connector Can be vertical relative to the handle to displacement. Half of the inner cone surface is located on the inner wall of the first half pipe, and the other half of the inner cone surface is located on the inner wall of the second half pipe.

In the charging gun of the present invention, the convex rib is attached to the outer side of the inner wall surface of the channel. An overflow gap is formed between the convex rib and the inner side of the inner wall surface of the channel.

In the charging gun of the present invention, the inner edge of the rear end opening of the handle is embedded in the outer side wall of the wiring seat. The charging gun of the present invention includes a wire, the wire is electrically connected to the electrical connector, and the wire penetrates the wiring seat and extends from the inside of the handle to the outside of the handle.

In the charging gun of the present invention, the electrical connector includes a sleeve and a terminal frame penetrated in the sleeve. The outer side wall of the terminal frame is provided with a plurality of positioning grooves corresponding to the wires, and each wire is respectively provided with a terminal. They are respectively arranged in the corresponding positioning grooves. The terminal frame is provided with at least one elastic arm hook for clamping the sleeve. A plug is protruded on the inner side wall of the handle, and the plug penetrates the sleeve along the transverse direction of the electrical connector and is inserted into the terminal frame.

In the charging gun of the present invention, the first hook portion is disposed adjacent to the channel, and the second hook portion is disposed adjacent to the protruding rib.

The charging gun of the present invention assembles the handle by means of snap connection, injects the sealant into the groove of the handle, and then inserts the protruding ribs into the groove to squeeze the sealant to tightly seal the handle, so it has good waterproofness and is suitable for automation Assembly and low cost of assembly.

100: Grip

101: Front opening

102: rear opening

103: overflow seam

110: First Half Pipe

111: Channel

112: The first hook part

112a: The first hook part

113: briquetting

120: Second half pipe

121: Ribs

122: Second hook part

122a: Second hook part

123: Positioning seat

130: Sealant

140: Inner cone

141: Half Ring

142: Half Ring

151: latch

152: latch

200: Electrical Connector

210: Sleeve

2131: Perforation

2132: Perforation

211: Flange

212: cone ring

220: apron

230: Terminal frame

231: Positioning slot

2321: Positioning hole

2322: Positioning hole

233: Spring arm hook

300: Terminal Block

310: Semicircle frame

320: semicircle frame

400: Controller

410: glue block

420: switch

500: wire

510: Terminal

600: hook

610: Claw

FIG. 1 is a three-dimensional schematic diagram of a charging gun according to a preferred embodiment of the present invention.

2 to 5 are schematic exploded perspective views of the charging gun according to the preferred embodiment of the present invention.

6 is a cross-sectional view of a charging gun according to a preferred embodiment of the present invention.

FIG. 7 is a partial enlarged view of FIG. 6 .

8 is a partial longitudinal sectional view of the front end opening of the charging gun according to the preferred embodiment of the present invention.

9 is another longitudinal cross-sectional view of the charging gun according to the preferred embodiment of the present invention.

10 is an exploded perspective view of the electrical connector in the charging gun according to the preferred embodiment of the present invention.

Referring to FIG. 1 and FIG. 2 , a preferred embodiment of the present invention provides a charging gun, which includes: a handle 100 , an electrical connector 200 and a wire socket 300 .

Referring to FIGS. 3 to 5 , in this embodiment, the handle 100 is tubular and has a longitudinal direction and a transverse direction. Specifically, the direction passing through a tubular, cylindrical or elongated object and parallel to its central axis is defined as its longitudinal direction, and the direction passing through the object and perpendicular to its longitudinal direction is defined as its transverse direction. This definition applies to each element mentioned hereinafter that is tubular, cylindrical or elongated. One end of the handle 100 has a front opening 101 , and the other end of the handle 100 has a rear opening 102 . The handle 100 includes a first half-pipe 110 and a second half-pipe 120 that are relatively closed along the longitudinal direction of the handle 100 . The first half-pipe 110 is provided with a channel 111 , and the channel 111 extends along the edge of the first half-pipe 110 At least one first hook portion 112/112a is disposed in the first half-tube 110 for engaging the part of the second half-tube 120, and the first hook portion 112/112a is disposed adjacent to the channel 111, and the second half-tube 120 is provided with at least one first hook portion 112/112a. A protruding rib 121 extends along a portion of the edge of the second half-pipe 120 that joins the first half-pipe 110. The second half-pipe 120 is provided with at least one second hook portion 122/122a, and the second hook portion 122 /122a is disposed adjacent to the rib 121, the groove 111 is filled with a sealant 130, the rib 121 is embedded in the groove 111 and the rib 121 is loosely fitted with the groove 111, and the sealant 130 is filled between the rib 121 and the groove 111 Clearance. The first hook portion 112/112a and the second hook portion 122/122a are correspondingly hooked. In this embodiment, a plurality of first hooks are preferably provided. The hook portions 112/112a and a plurality of second hook portions 122/122a corresponding to the first hook portions 112/112a.

As shown in FIGS. 4 to 6 , one form of the second hook portion 122 is a hook structure, and the corresponding first hook portion 112 is an edge or hole structure corresponding to the hooks engaging with each other. Another form of the first hook portion 112a is a hook structure, and the corresponding second hook portion 122a is an edge or hole structure corresponding to the hooks engaging with each other. The first hook portion 112 ( 112 a ) is fastened to the second hook portion 122 ( 122 a ) to compress the first half-pipe 110 and the second half-pipe 120 . Specifically, the first hook portion 112 ( 112 a ) is buckled with the second hook portion 122 ( 122 a ) to exert force on the protruding rib 121 , so that the protruding rib 121 presses and sinks into the sealant 130 , so the sealant 130 is compressed and Dense, thereby sealing the seam between the first half-pipe 110 and the second half-pipe 120 .

7 , the rib 121 is attached to the outer side of the inner wall of the channel 111 to seal the channel 111 to prevent the rib 121 from squeezing the sealant 130 and causing the sealant 130 to overflow through the outer wall of the handle 100 during assembly. Moreover, an overflow seam 103 is formed between the protruding rib 121 and the inner side of the inner wall surface of the channel 111 to allow excess sealant 130 to overflow into the handle 100 without leaking to the appearance surface of the handle 100 superior.

Referring to FIGS. 2 to 5 , a positioning seat 123 is protruded from the inner wall of the second half-pipe 120 , and a controller 400 electrically connected to the electrical connector 200 is disposed on the positioning seat 123 , and the controller 400 controls the electrical The connector 200 is powered off. A pressing block 113 is protruded on the inner wall of the first half-pipe 110 corresponding to the controller 400 , and the pressing block 113 presses and fixes the controller 400 to the positioning seat 123 . This structural configuration facilitates pre-assembly of parts into the second half-pipe 120, and furthermore, the first half-pipe 110 without pre-assembled parts facilitates automated dispensing and assembly.

Referring to FIGS. 2 to 4 , in this embodiment, the charging gun of the present invention further includes a rubber block 410 and a switch 420 , and the rubber block 410 is sandwiched between the first half-pipe 110 and the second half-pipe 120 . switch 420 Passing through the glue block 410 , the glue block 410 is exposed inside the handle 100 and the switch 420 is exposed outside the handle 100 , and the switch 420 is electrically connected to the controller 400 .

Referring to FIGS. 2 and 8 , the handle 100 is provided with a hook 600 . In this embodiment, the hook 600 is preferably in the shape of a rod. The middle section of the hook 600 is pivotally connected to the outer side wall of the handle 100 . A claw portion 610 is formed at one end of the . The claw portion 610 is disposed on one side of the electrical connector 200 , and can be hooked and locked by the claw portion 610 after the electrical connector 200 is docked with a charging socket (not shown) of the electric vehicle. The other end of the hook 600 can touch the switch 420 when the hook 600 pivots so that the hook portion 610 is away from the electrical connector 200 . Therefore, the controller 400 can determine the plug state of the electrical connector 200 according to the switch 420 to control the power supply and power off of the electrical connector 200 .

1 to 3 , the electrical connector 200 closes the front opening 101 of the handle 100 . Referring to FIGS. 3 to 5 , the outer side wall of the electrical connector 200 is provided with a cone ring 230 and a flange 210 , and the inner side wall of the handle 100 is provided with an inner cone surface 140 corresponding to the cone ring 230 , the flange 210 and the front end opening A rubber ring 220 is arranged between the inner edges of 101 . In this embodiment, the inner tapered surface 140 is preferably split into two oppositely joined half rings 141/142, wherein one half ring 141 is located on the inner wall of the first half pipe 110, and the other half ring 142 is located on the second half ring 141. The inner wall of the half pipe 120 . Referring to FIG. 8 , the inner cone surface 140 is attached to and pushes against the cone ring 230 to push the flange 210 toward the front end opening 101 . Referring to FIG. 3 , FIG. 5 and FIG. 6 , at least one plug 151 / 152 is protruded on the inner side wall of the handle 100 . In this embodiment, preferably, a plug 151 is protruded on the inner wall of the first half-pipe 110 , and another plug 152 is protruded on the inner wall of the second half-pipe 120 . Each of the pins 151/152 is inserted into the electrical connector 200 along the lateral direction of the electrical connector 200, and as shown in FIG. clearance, the same is true for the other plug 152 . When the rubber ring 220 deforms and pushes the electrical connector 200 , the gap allows the electrical connector 200 and the handle 100 to move back and forth relative to the handle 100 along the longitudinal direction of the handle 100 .

Referring to FIG. 3 and FIG. 4 , before the first half-tube 110 and the second half-tube 120 are combined and assembled, the rubber ring 220 is first sleeved on the electrical connector 200 , and then the second half-tube 120 is inserted into the The two half-pipes 120, in general, since the first half-pipe 110 and the second half-pipe 120 are combined along the direction from the rear opening 102 of the handle 100 to the front opening 101, only lateral pressure can be applied during assembly, and The rubber ring 220 cannot be pressed toward the front end opening 101 , so that it is pressed to seal the front end opening 101 . Therefore, as shown in FIG. 8 , in the present invention, the inner tapered surface 140 of the second half-pipe 120 is configured to cooperate with the tapered ring 230 of the electrical connector 200 . During the process of assembling the electrical connector 200 to the second half-pipe 120 , the The mutual attachment and push of the inner vertebral surface 140 and the cone ring 230 generate a resultant force toward the front opening 101 along the longitudinal direction of the handle 100 , so that even if the assembling process can only exert lateral pressure on the electrical connector 200 , The above resultant force can still press the rubber ring 220 through the flange 210 of the electrical connector 200 , so as to press the rubber ring 220 along the longitudinal direction of the handle 100 to seal the front opening 101 .

As shown in FIGS. 2 and 3 , the wire socket 300 is inserted through the rear opening 102 of the handle 100 to close the rear opening 102 of the handle 100 . Moreover, the inner edge of the rear end opening 102 of the handle 100 is preferably embedded in the outer side wall of the wire socket 300 to seal the rear end opening 102 . The present invention also includes a wire 500, the wire 500 is electrically connected to the electrical connector 200, and the wire 500 extends through the terminal block 300 from the inside of the handle 100 to the outside of the handle 100 to be electrically connected to a power supply. In this embodiment, the wire base 300 is an elastic cylinder made of glue, and the wire base 300 is split into two relatively closed semi-circular frames 310 / 320 along its central axis for easy assembly. The half-circle frame 320 is assembled to the second half-pipe 120 first, and the wire 500 is inserted into the half-circle frame 320 and then closed with the other half-circle frame 310 to form the terminal block 300 .

Referring to FIGS. 9 and 10 , in this embodiment, the electrical connector 200 preferably includes a sleeve 210 and a terminal frame 230 . The terminal frame 230 has a cylindrical shape and is inserted into the sleeve 210 . The terminal frame 230 is provided with at least one elastic arm hook 233 . After the terminal frame 230 penetrates into the sleeve 210 , the elastic arm hook 233 can clamp the sleeve 210 and be fixed in the sleeve 210 . The outer sidewall of the terminal frame 230 is provided with a plurality of fixed numbers corresponding to the wires 500 . The positioning grooves 231 respectively extend along the longitudinal direction of the terminal frame 230 and penetrate the terminal frame 230 . One end of each wire 500 connected to the electrical connector 200 is respectively provided with a terminal 510 .

Moreover, corresponding to the aforementioned latches 151/152, the side surfaces of the sleeve 210 are respectively provided with through holes 2131/2132, and the outer arms of the terminal frame 230 are provided with positioning holes 2321/2322. Each through hole 2131/2132 corresponds to each corresponding positioning hole 2321/2322, respectively. One of the plug pins 151 passes through the corresponding through holes 2131 and then snaps into the corresponding positioning holes 2321 ; the other plug 151 also passes through the corresponding through holes 2132 and then snaps into the corresponding positioning holes 2322 .

To sum up, the charging gun of the present invention assembles the handle 100 by means of snap connection, which saves material and time cost compared with the traditional assembly method using rivets or screws; the sealant 130 is injected into the groove 111 of the handle 100 Then, the protruding rib 121 is inserted into the channel 111 to squeeze the sealant 130 to close the handle so as to make it waterproof; the inner cone surface 140 and the cone ring 230 are attached and pushed against each other during the assembly process, and the opening 101 toward the front end is naturally generated. With the combined force, even if only lateral pressure can be applied, the rubber ring 220 can be pressed to achieve the effect of sealing and waterproofing. And all the aforementioned structures make the assembly of the present invention more suitable for automatic assembly and the assembly cost is low.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Other equivalent changes using the patent spirit of the present invention shall all belong to the patent scope of the present invention.

100: Grip

101: Front opening

102: rear opening

110: First Half Pipe

112: The first hook part

120: Second half pipe

121: Ribs

122: Second hook part

122a: Second hook part

123: Positioning seat

140: Inner cone

141: Half Ring

200: Electrical Connector

210: Sleeve

2131: Perforation

211: Flange

212: cone ring

220: apron

300: Terminal Block

310: Semicircle frame

320: semicircle frame

400: Controller

410: glue block

420: switch

500: wire

510: Terminal

600: hook

610: Claw

Claims (16)

A charging gun, comprising: a handle, in the shape of a tube, one end of the handle has a front opening, the other end of the handle has a rear opening, the handle includes a first relatively closed along the longitudinal direction of the handle A half-pipe and a second half-pipe, the first half-pipe is provided with a channel extending along the edge of the first half-pipe to engage the second half-pipe, the first half-pipe is provided with a first half-pipe a hook portion, the second half-pipe is provided with a protruding rib, the protruding rib extends along the edge of the second half-pipe to engage the first half-pipe, a second hook portion is arranged in the second half-pipe, the groove A sealant is filled in the channel, the protruding rib is embedded in the channel and the protruding rib is loosely matched with the channel, the sealant is filled in the gap between the protruding rib and the channel, and the first hook portion is buckled The second hook portion tightens the first half-pipe and the second half-pipe; an electrical connector disposed at the front opening of the handle; and a wiring socket disposed at the rear of the handle open end. The charging gun of claim 1, wherein a positioning seat is protruded on the inner wall of the second half-pipe, and a controller electrically connected to the electrical connector is disposed on the positioning seat. The charging gun of claim 2, wherein a pressing block is protruded on the inner wall of the first half-pipe corresponding to the controller, and the pressing block presses and fixes the controller to the positioning seat. The charging gun of claim 3, further comprising a rubber block and a switch, the rubber block is sandwiched between the first half-pipe and the second half-pipe, the switch is embedded in the rubber block and penetrates the The switch is exposed inside the handle and outside the handle respectively by the glue block, and the switch is electrically connected to the controller. The charging gun of claim 4, wherein the handle is provided with a hook, the middle section of the hook is pivotally connected to the outer side wall of the handle, and one end of the hook forms a claw, the claw is disposed on the electric On one side of the connector, the other end of the hook can touch the switch when the hook is pivoted to move the hook away from the electrical connector. The charging gun according to claim 1, wherein a cone ring and a flange are provided on the outer side wall of the electrical connector, an inner cone surface is provided on the inner side wall of the handle corresponding to the cone ring, the flange and the A rubber ring is arranged between the inner edges of the front end opening, and the inner cone surface is attached to and pushes against the cone ring to push the flange toward the front end opening. The charging gun of claim 6, wherein a plug is protruded on the inner side wall of the handle, the plug is inserted into the electrical connector along the lateral direction of the electrical connector, and the plug and the electrical connector are located between the plug and the electrical connector. The electrical connector has a gap in the longitudinal direction. The charging gun of claim 6, wherein half of the inner cone surface is located on the inner wall of the first half pipe, and the other half of the inner cone surface is located on the inner wall of the second half pipe. The charging gun according to claim 1, wherein the protruding rib is attached to an outer side of the inner wall surface of the channel. The charging gun according to claim 9, wherein an overflow gap is formed between the protruding rib and the inner side of the inner wall surface of the channel. The charging gun of claim 1, wherein the inner edge of the rear end opening of the handle is embedded in the outer side wall of the wire socket. The charging gun as claimed in claim 11, comprising a wire, the wire is electrically connected to the electrical connector, and the wire extends from the inside of the handle to the outside of the handle through the terminal block. The charging gun as claimed in claim 11, further comprising a plurality of wires, each of the wires is electrically connected to the electrical connector, and each of the wires respectively penetrates the terminal and extends from the inside of the handle to the outside of the handle , the electrical connector includes a sleeve and a terminal frame that penetrates through the sleeve, the outer side wall of the terminal frame is provided with a plurality of positioning grooves corresponding to the wires, each wire is respectively provided with a terminal, each of the The terminals are respectively arranged in the corresponding positioning grooves. The charging gun of claim 13, wherein the terminal frame is provided with at least one elastic arm hook for clamping the sleeve. The charging gun according to claim 13, wherein a plug is protruded on the inner side wall of the handle, and the plug penetrates the sleeve along the transverse direction of the electrical connector and is inserted into the terminal frame. The charging gun of claim 1, wherein the first hook portion is disposed adjacent to the channel, and the second hook portion is disposed adjacent to the protruding rib.

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