Charging gun and charging equipment

Abstract

The utility model relates to the technical field of electric vehicle charging, in particular to a charging gun and charging equipment. The charging gun comprises a shell and a charging cable, wherein the shell comprises a shell body and a profiling piece; the shell comprises a mounting cavity, the profiling part is arranged at the end, close to the tail of the charging gun, in the mounting cavity, the outer wall of the profiling part is matched with the inner wall of the mounting cavity, a first sealing part is arranged between the profiling part and the inner wall of the mounting cavity, the profiling part is provided with a through hole penetrating through the profiling part in the thickness direction of the profiling part, and the charging cable penetrates through the through hole. And a second sealing piece is arranged between the charging cable and the inner wall of the through hole. According to the embodiment of the invention, the sealing performance between the shell and the charging cable is relatively good, so that the use safety of the charging gun is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle charging technical field especially a kind of charging gun and charging equipment. BACKGROUND

[0002] Charging gun is a kind of connecting device to realize the transmission of electric energy from charging pile to electric vehicle, after charging gun is connected with electric vehicle, charging pile can charge electric vehicle through charging gun.Charging gun includes shell and cable arranged in shell.Sealing can cause influence to electrical safety of charging gun, therefore, meet the sealing performance requirement of shell is the important research direction of charging gun. SUMMARY

[0003] The embodiment of the utility model provides a kind of charging gun and charging equipment.The sealing between the shell and charging cable in charging gun is higher, to further guarantee the security of charging gun use.

[0004] In a first aspect, the utility model embodiment provides a kind of charging gun, the charging gun includes: shell and charging cable.Shell includes shell and profiling piece;Shell includes installation cavity, profiling piece is set to one end close to the tail of charging gun in installation cavity, the outer wall of profiling piece is matched with the inner wall of shell, first sealing element is arranged between the inner wall of profiling piece and shell, profiling piece has through hole along the thickness direction of profiling piece, charging cable is worn in through hole, second sealing element is arranged between charging cable and through hole.

[0005] In the embodiment of the application, the shell of the charging gun is provided with a profiling piece, which is matched with the inner wall of the shell. The first sealing element arranged between the profiling piece and the inner wall of the shell can ensure the sealing between the profiling piece and the inner wall of the shell, prevent liquid from entering the charging gun through the space between the profiling piece and the inner wall of the shell, and improve the safety of the charging gun. In addition, the charging cable is inserted into the shell through the through hole of the profiling piece, and the second sealing element is arranged between the charging cable and the inner wall of the profiling piece, which can prevent liquid from entering the charging gun through the space between the inner wall of the profiling piece and the charging cable, and improve the safety of the charging gun.

[0006] In a possible implementation, the difference between the maximum value and the minimum value of the spacing between the inner wall and the outer wall of the shell is m, and the difference between the maximum value and the minimum value of the spacing between the inner wall and the outer wall of the profiling piece is n, n is less than or equal to m.

[0007] It can be understood that the shell includes the profiled part and the shell body, the inner wall of the shell is the inner wall of the profiled part, and the outer wall of the shell is the outer wall of the shell body. When n is equal to m, the wall thickness of the shell body can be considered to be uniform. In the process of preparation, the injection molding material can achieve flow balance in each flow channel in the mold, so as to ensure the mold flow balance of the injection molding material. In this way, the injection molding material will not produce shrinkage difference during the cooling process, and the shell body with uniform wall thickness is not prone to warping deformation, thereby being able to ensure the sealing performance and the aesthetic appearance of the shell body. When n is less than m, the wall thickness difference of the shell body is relatively large, and the shell body and the profiled part bear part of the wall thickness difference in the scheme of the embodiment of the application, so that the wall thickness difference of the shell body is relatively small, and the wall thickness of the shell body can be considered to be uniform. In this way, the injection molding material can still achieve mold flow balance in the shell body, and the probability of warping deformation of the shell body is also small.

[0008] In a possible implementation, the outer wall of the profiled part is provided with a first ring groove, the first ring groove is arranged in the circumferential direction of the center line of the through hole, the first sealing element is arranged in the first ring groove, and the first sealing element is in abutment with the inner wall of the shell body. The first ring groove arranged on the outer wall of the profiled part can facilitate cooperation between the first sealing element and the profiled part, and improve the sealing performance between the profiled part and the inner wall of the shell body.

[0009] In a possible implementation, the first sealing element is provided with a first annular protrusion, and the first annular protrusion is used to abut against the inner wall of the shell body. The arrangement of the first annular protrusion can make the first sealing element more easily abut against the inner wall of the shell body. In some examples, the first annular protrusion is a plurality of. When the number of the first annular protrusions is a plurality, the sealing performance between the profiled part and the inner wall of the shell body can be further improved.

[0010] In a possible implementation, the inner wall of the profiled part is provided with a second ring groove, the second ring groove is arranged in the circumferential direction of the center line of the through hole, the second sealing element is arranged in the second ring groove, and the charging cable is in interference fit with the second sealing element. The second ring groove arranged on the inner side of the profiled part can facilitate cooperation between the second sealing element and the profiled part, improve the stability of the charging cable when the charging cable is arranged in the second sealing element, and improve the sealing performance between the charging cable and the profiled part.

[0011] In a possible implementation, the second sealing element is provided with a second annular protrusion. The second annular protrusion is used to abut against the charging cable. The arrangement of the second annular protrusion can improve the sealing performance between the charging cable and the profiled part. In some examples, the second annular protrusion is a plurality of. When the number of the second annular protrusions is a plurality, the sealing performance between the profiled part and the charging cable can be further improved.

[0012] In a possible implementation, the first sealing element and the second sealing element are arranged in a spaced manner in the direction of the center line of the through hole. The space occupied by the first sealing element and the second sealing element can be reduced.

[0013] In one possible implementation, the first seal and the second seal are sealing rings. The shape of the first seal is adjusted according to the shape of the outer wall of the profiled part.

[0014] In one possible implementation, the charging gun further includes a third seal. The mounting cavity has an opening at one end near the tail of the charging gun, and the third seal is disposed at the opening. The third seal is used to seal the outer wall of the profiled part with the inner wall of the housing. The third seal provides a secondary seal for the mounting cavity.

[0015] In one possible implementation, a first annular stepped surface is provided on the outer wall of the profile near the opening end, and a third seal is filled between the first annular stepped surface and the inner wall of the housing. The provision of the first annular stepped surface facilitates the provision of the third seal.

[0016] In one possible implementation, the housing has a second annular stepped surface near the opening, and a third seal is disposed on the surfaces of the first and second annular stepped surfaces to cover the gap between the profile and the inner wall of the housing. The second and first annular stepped surfaces are connected, and the third seal fills the first and second annular stepped surfaces to provide a secondary seal for the mounting cavity.

[0017] Secondly, this application also provides a charging device, which includes a charging pile and a charging gun as described in any of the technical solutions of the first aspect, wherein the charging pile is connected to the charging gun. The appearance of the charging gun in this charging device can be changed according to the actual design of the charging device, and the housing and charging cable of the charging gun with the changed appearance have a high degree of sealing. Attached Figure Description

[0018] Figure 1 A schematic diagram of a charging device provided for an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the charging gun provided in an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 Sectional view of AA;

[0021] Figure 4 for Figure 3 Enlarged view of point a in the middle;

[0022] Figure 5 An exploded view of the charging gun provided in an embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the contouring component in the charging gun provided in an embodiment of the present utility model;

[0024] Figure 7 A partial structure schematic view of the charging gun is provided for the embodiment of the utility model.

[0025] Figure 8 For Figure 7 The enlarged view at b.

[0026] Icon:

[0027] 1-charging equipment;2-charging gun;20-charging gun main body;21-charging cable;200-housing;201-mounting cavity;202-second annular step surface;210-charging head;220-profiling;221-first annular groove;222-second annular groove;223-through hole;224-first annular step surface;230-first sealing element;231-first annular protrusion;240-second sealing element;241-second annular protrusion;250-handle part;260-end cover;270-third sealing element;21-charging cable;3-charging pile;30-power supply assembly. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Figure 1 A schematic view of a charging equipment is provided for the embodiment of the application.

[0030] As Figure 1 shown, the embodiment of the application provides a charging equipment 1, which can be used for charging electric vehicles. The charging equipment 1 comprises a charging pile 3 and a charging gun 2, the charging pile 3 is connected with the charging gun 2, the charging pile 3 can provide electric energy, the charging gun 2 is a connecting device for transmitting electric energy from the charging pile 3 to the electric vehicle, and the charging pile 3 can charge the electric vehicle through the charging gun 2 after the charging gun 2 is connected with the electric vehicle. In some examples, the charging equipment 1 can be a super-charging equipment, and the charging power of a single charging gun 2 thereof is usually greater than or equal to 480KW.

[0031] The charging gun 2 comprises a charging gun main body 20 and a charging cable 21, and the two ends of the charging cable 21 are connected with the charging gun main body 20 and the charging pile 3 respectively.

[0032] The charging pile 3 comprises a power supply assembly 30, which can be connected with a commercial power grid through a charging host, and the charging host can convert the current provided by the commercial power into the current required by the electric vehicle charging.

[0033] The charging gun provided by the embodiment of the utility model is specifically described below with reference to the drawings.

[0034] Figure 2 The structural diagram of the charging gun provided by the embodiment of the utility model, Figure 3 The Figure 2 Cross-sectional view of A-A in FIG. Figure 4 The Figure 3 Enlarged view of a in FIG. Figure 5 The exploded view of the charging gun provided by the embodiment of the utility model.

[0035] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the charging gun can be provided with a charging gun body and a charging cable 21. The charging gun body 20 can comprise a shell and a charging head 210. The shell comprises a housing 200 and a profiling piece 220. One end of the housing 200 is used for mounting the charging head 210, and the charging head 210 is used for connecting with an electric vehicle to charge the electric vehicle. The other end of the housing 200 is used for threading the charging cable 21 therethrough. That is, the end of the housing 200 close to the charging cable 21 is the tail of the charging gun. Specifically, the housing 200 has a handle portion 250 and a mounting cavity 201. The end of the housing 200 for mounting the charging head 210 is the gun head of the charging gun, and the end of the housing 200 for threading the charging cable 21 is the tail of the charging gun. The handle portion 250 is located between the tail of the charging gun and the charging head 210. The profiling piece 220 is arranged in the mounting cavity 201 close to one end of the tail of the charging gun, and the profiling piece 220 is matched with the inner wall of the housing 200. A first sealing piece 230 is arranged between the profiling piece 220 and the inner wall of the housing 200. The profiling piece 220 has a through hole penetrating through the profiling piece in the thickness direction of the profiling piece 220, and the charging cable 21 is threaded through the through hole. A second sealing piece 240 is arranged between the charging cable 21 and the inner wall of the profiling piece 220.

[0036] In the embodiment of the present application, the profiled part 220 can match the inner wall of the shell 200, and a first sealing part 230 is arranged between the profiled part 220 and the inner wall of the shell 200, which can ensure the sealing between the outer wall of the profiled part 220 and the inner wall of the shell 200, prevent liquid from entering the charging gun through the space between the profiled part 220 and the inner wall of the shell 200, and improve the safety of the charging gun. In addition, when the charging cable 21 is connected to the shell 200, the charging cable 21 enters the mounting cavity 201 through the through hole of the profiled part 220, and a second sealing part 240 is arranged between the charging cable 21 and the inner wall of the profiled part 220, which can improve the sealing effect between the charging cable 21 and the profiled part 220, prevent liquid from entering the charging gun through the space between the inner wall of the profiled part 220 and the charging cable 21, and improve the safety of the charging gun.

[0037] Figure 6 A structure diagram of the profiled part in the charging gun is provided in the embodiment of the present application. Figure 7 A structure diagram of the charging gun is provided in the embodiment of the present application. Continue to refer to Figures 2 to 7 In some implementations, the maximum value of the spacing between the inner wall and the outer wall of the shell is c, and the minimum value of the spacing between the inner wall and the outer wall of the shell is d. The maximum value of the spacing between the inner wall and the outer wall of the profiled part 220 is e, and the minimum value of the spacing between the inner wall and the outer wall of the profiled part 220 is f. When the difference m between the maximum value c of the wall thickness of the shell and the minimum value d of the wall thickness of the shell is equal to the difference n between the maximum value e of the wall thickness of the profiled part 220 and the minimum value f of the wall thickness of the profiled part 220, the wall thickness of the shell 200 can be considered uniform. When the shell 200 with uniform wall thickness is prepared, the injection molding material can achieve flow balance in each flow channel in the mold, ensuring the mold flow balance of the injection molding material. In addition, when the shell 200 with uniform wall thickness is prepared, the injection molding material will not produce shrinkage difference during cooling, thereby preventing the shell 200 from being warped and deformed, and further ensuring the aesthetics of the shell 200 and facilitating the matching of the profiled part 220 and the inner wall of the shell 200. Compared with a shell with uneven wall thickness, the shell is divided into the shell 200 with uniform wall thickness and the profiled part 220 arranged in the shell 200, the preparation process of the shell 200 with uniform wall thickness is relatively simple, and the yield rate is relatively high. Moreover, no matter whether the appearance of the charging gun changes or the position of the handle part 250 changes, the integrally prepared shell can be divided into the shell 200 with uniform wall thickness and the profiled part 220 arranged in the shell 200, which can prevent the problem of poor sealing caused by the deformation of the shell, thereby ensuring the safety of the charging gun.

[0038] In some other implementations, the difference n between the maximum value e and the minimum value f of the spacing between the inner wall and the outer wall of the profiling member 220 can also be less than the difference m between the maximum value c of the wall thickness of the outer shell and the minimum value d of the wall thickness of the outer shell. In this case, the wall thickness of the shell 200 of the outer shell is not completely uniform, but the difference in the wall thickness of the outer shell is relatively large. In the implementation, the shell and the profiling member each bear part of the non-uniform wall thickness, and thus the difference in the wall thickness of the shell is relatively small, and the wall thickness of the shell can be considered to be substantially uniform everywhere. In this way, the mold flow balance of the injection molding material in the shell can be achieved, and the probability of warping deformation of the shell is small.

[0039] In addition, the first sealing member 230 is arranged between the profiling member 220 and the mounting cavity 201. If the shell 200 is deformed during the injection molding process, the outer surface of the profiling member 220 matches the inner wall of the mounting cavity 201, and the arrangement of the first sealing member 230 can improve the sealing effect between the profiling member 220 and the inner wall of the mounting cavity 201, prevent liquid from entering the mounting cavity 201 through the first sealing member 230 and the inner wall of the mounting cavity 201, and improve the safety of the charging gun.

[0040] The mounting cavity 201 has an opening at one end close to the tail of the charging gun, the profiling member 220 is mounted in the shell 200 through the opening, and the charging cable 21 is also arranged in the shell 200 through the opening. The charging gun can further include an end cover 260 arranged at the tail of the charging gun and used for covering the tail of the charging gun. Specifically, the opening is actually formed on the end cover 260, and the arrangement of the end cover 260 can improve the appearance of the charging gun.

[0041] In the above embodiments, the shape of the profiling member 220 can be various: for example, the outer wall of the profiling member 220 can be circular, triangular, rhombic, or other irregular shapes.

[0042] Continuing to refer to Figures 2 to 6 In the above embodiments, the outer wall of the profiling member 220 can be provided with a first ring groove 221, the first ring groove 221 is arranged along the circumferential direction of the center line of the through hole 223, the first sealing member 230 is arranged in the first ring groove 221, and the first sealing member 230 abuts against the inner wall of the shell 200. Specifically, the first sealing member 230 actually protrudes from the outer wall of the profiling member 220, and when the first ring groove 221 is arranged on the outer wall of the profiling member 220, the profiling member 220 and the inner wall of the mounting cavity 201 are in interference fit, so as to ensure the airtightness between the profiling member 220 and the inner wall of the shell 200.

[0043] In the above embodiments, the number of the first ring grooves 221 can be one, two, three or more, and each of the first ring grooves 221 can be provided with a first sealing member 230, or at least one of the first ring grooves 221 is provided with a first sealing member 230, and when the first ring grooves 221 are multiple, the multiple first ring grooves 221 are arranged in sequence and are spaced apart.

[0044] The first sealing member 230 comprises a first annular protrusion 231 for abutting against the inner wall of the shell 200. Specifically, the number of the first annular protrusions 231 can be one or more, and when the first annular protrusions 231 are multiple, the multiple first annular protrusions 231 are distributed in a spaced apart manner.

[0045] The inner wall of the profiling member 220 is provided with a second ring groove 222, and a second sealing member 240 is arranged in the second ring groove 222. The second ring groove 222 is arranged along the circumferential direction of the center line of the through hole 223, and the charging cable 21 is in interference fit with the second sealing member 240. The arrangement of the second sealing member 240 and the second ring groove 222 can enable the sealing connection between the charging cable 21 and the profiling member 220. The number of the second ring grooves 222 can be one, two, three or more, and each of the second ring grooves 222 can be provided with a second sealing member 240, or at least one of the second ring grooves 222 is provided with a second sealing member 240, and when the second ring grooves 222 are multiple, the multiple second ring grooves 222 are arranged in sequence and are spaced apart.

[0046] The second sealing member 240 comprises a second annular protrusion 241 for abutting against the charging cable 21. Specifically, the number of the second annular protrusions 241 can be one or more, and when the second annular protrusions 241 are multiple, the multiple second annular protrusions 241 are distributed in a spaced apart manner.

[0047] In the above embodiments, the first sealing member 230 and the second sealing member 240 can both be sealing rings, and the number of the first annular protrusions 231 included in the first sealing member 230 and the number of the second annular protrusions 241 included in the second sealing member 240 can be the same or different, and can be adjusted according to actual needs.

[0048] The first sealing member 230 and the second sealing member 240 are arranged in a spaced apart manner along the direction of the center line of the through hole 223. Specifically, the first ring groove 221 and the second ring groove 222 are arranged in a spaced apart manner along the direction of the center line of the through hole 223, and relative to the relative arrangement of the first ring groove 221 and the second ring groove 222, this can prevent the profiling member 220 from being too thin locally and improve the strength of the profiling member 220.

[0049] Figure 8 For Figure 7Enlarged view at B. Referring to Figures 2 to 8 In the above embodiment, the charging gun further comprises a third sealing member 270, which is arranged at the opening and is used to seal the outer wall of the profiling member 220 and the opening of the mounting cavity 201. The arrangement of the third sealing member 270 can improve the sealing effect between the profiling member 220 and the shell 200, and realize the secondary sealing between the profiling member 220 and the shell 200. The third sealing member 270 can be glue, which is used to realize the secondary sealing between the profiling member 220 and the mounting cavity 201 by means of dispensing.

[0050] In order to improve the stability of the sealing of the third sealing member 270, a first annular stepped surface 224 is arranged on the outer wall of the profiling member 220 near the opening end, and the third sealing member 270 is filled between the first annular stepped surface 224 and the inner wall of the shell 200. The arrangement of the first annular stepped surface 224 can make the third sealing member 270 be arranged more conveniently between the outer wall of the profiling member 220 and the inner wall of the mounting cavity 201, and improve the sealing effect.

[0051] The first annular stepped surface 224 can be multiple, and the multiple first annular stepped surfaces 224 are distributed in a stepped manner on the outer wall of the profiling member 220.

[0052] In some other embodiments, a second annular stepped surface 202 is arranged at the opening end of the mounting cavity 201, and the third sealing member 270 is arranged on the surfaces of the first annular stepped surface 224 and the second annular stepped surface 202 to fill the gap between the profiling member 220 and the inner wall of the shell 200. The second annular stepped surface 202 and the first annular stepped surface 224 can be arranged in a staggered manner along the direction of the center line of the through hole 223, and when the third sealing member 270 is glue, the glue can flow from the first annular stepped surface 224 to the second annular stepped surface 202, or the glue can flow from the second annular stepped surface 202 to the first annular stepped surface 224, so as to improve the sealing effect. In some other embodiments, the second annular stepped surface 202 and the first annular stepped surface 224 can also be arranged in a flush manner.

[0053] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A charging gun, characterized in that, include: Charging cable; and Housing, the housing comprising: Housing, the housing including a mounting cavity; and A contoured component is disposed within the mounting cavity at one end near the tail of the charging gun, and the outer wall of the contoured component matches the inner wall of the housing. A first sealing element is provided between the contoured component and the inner wall of the housing. The contoured component has a through hole extending through the contoured component along its thickness direction. The charging cable passes through the through hole, and a second sealing element is provided between the charging cable and the inner wall of the through hole.

2. The charging gun as described in claim 1, characterized in that, The difference between the maximum and minimum distance between the inner and outer walls of the outer shell is m, and the difference between the maximum and minimum distance between the inner and outer walls of the contouring part is n, where n is less than or equal to m.

3. The charging gun as described in claim 1, characterized in that, The outer wall of the conforming part is provided with a first annular groove, which is arranged circumferentially along the center line of the through hole. The first sealing member is disposed in the first annular groove and abuts against the inner wall of the housing.

4. The charging gun as described in claim 3, characterized in that, The first seal is provided with a first annular protrusion, which is used to abut against the inner wall of the housing.

5. The charging gun according to any one of claims 1 to 4, characterized in that, The inner wall of the contoured part is provided with a second annular groove, which is arranged circumferentially along the center line of the through hole. The second sealing member is disposed in the second annular groove, and the charging cable is interference-fitted with the second sealing member.

6. The charging gun as described in claim 5, characterized in that, The second seal is provided with a second annular protrusion, which is used to abut against the charging cable.

7. The charging gun according to any one of claims 1 to 4, characterized in that, The charging gun also includes a third sealing element. The mounting cavity has an opening at one end near the tail of the charging gun. The third sealing element is disposed at the opening and is used to seal the outer wall of the contoured part with the inner wall of the housing.

8. The charging gun as described in claim 7, characterized in that, The outer wall of the contoured part near the opening is provided with a first annular stepped surface, and the third sealing element is filled between the first annular stepped surface and the inner wall of the housing.

9. The charging gun as described in claim 8, characterized in that, The housing has a second annular stepped surface near the opening, and the third sealing element is disposed on the surfaces of the first and second annular stepped surfaces to cover the gap between the contoured part and the inner wall of the housing.

10. A charging device, characterized in that, It includes a charging pile and a charging gun as described in any one of claims 1 to 9, wherein the charging cable of the charging gun is electrically connected to the charging pile.

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