CN218378228U - Fast-plugging water pipe joint and electronic equipment - Google Patents

Abstract

The utility model discloses a fast water pipe head of inserting, fast water pipe head of inserting includes: the quick-inserting male end pipe body extends along a first direction, and comprises a shell inserting end, wherein the shell inserting end is used for being inserted into the inner wall of the cooling water channel along the first direction, and the shell inserting end is in interference fit with the inner wall of the cooling water channel and is in sealed connection with the inner wall of the cooling water channel; insert female end connecting portion soon, encircle the outer peripheral face of locating insert the public end body soon to insert public end body static along circumference relatively soon, circumference encircles first direction, inserts female end connecting portion soon and is used for connecting and inserts female end soon, inserts female end connecting portion soon and is equipped with and inserts female end guide part soon, inserts female end guide part soon and is used for guiding and inserts female end soon and insert female end connecting portion soon and be connected. The utility model discloses can reduce the assembly process degree of difficulty, reduce and reveal the risk, and when putting the car end redirecting in order, can adjust in a flexible way and connect the quick angle of inserting of pressure equipment direction adaptation, need not to change the casing. The utility model also provides an electronic equipment.

Description

Fast-plugging water pipe joint and electronic equipment

Technical Field

The utility model relates to a power electronics field, in particular to insert water pipe head and electronic equipment soon.

Background

The inverter is a converter which converts direct current electric energy (batteries and storage batteries) into constant-frequency constant-voltage or frequency-modulation voltage-regulation alternating current. The inverter can release a large amount of heat in the work, and the heat needs to enter a cooling water channel on the inverter through cooling liquid to carry out heat exchange, brings out the generated heat, and realizes the cooling of the inverter. The cooling water course of dc-to-ac converter and external refrigerant interface often use the injection molding as connecting to use the sealing washer to seal, and the screw fastening, so the part number is many, and assembly process is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve prior art cooling water course and external refrigerant interface's joint spare number is many, and assembly process is complicated. The utility model provides a fast water pipe head of inserting can match whole car end when inserting the demand soon in needs, uses this fast water pipe head of inserting, reduces the assembly process degree of difficulty, reduces and reveals the risk to when inserting female end needs change the installation direction soon in whole car end, can adjust the installation direction that fast water pipe head inserts female installation angle of end soon with the adaptation in a flexible way, need not to change the dc-to-ac converter casing.

In order to solve the technical problem, the utility model discloses an embodiment discloses a water pipe joint inserts soon, insert water pipe joint soon includes: the quick-insertion male end pipe body extends along a first direction and comprises a shell insertion end, the shell insertion end is used for being inserted into the inner wall of the cooling water channel along the first direction, and the shell insertion end is in interference fit with the inner wall of the cooling water channel and is in sealed connection with the inner wall of the cooling water channel; insert female end connecting portion soon, encircle and locate insert the outer peripheral face of public end body soon to it is relative along circumference insert public end body soon static, circumference encircles the first direction, insert female end connecting portion soon and be used for connecting insert female end soon, insert female end connecting portion soon and be equipped with insert female end guide part soon, insert female end guide part soon and be used for the guide insert female end soon with insert female end connecting portion soon and connect.

By adopting the technical scheme, the shell insertion end of the quick-insertion male end pipe body of the quick-insertion water pipe joint is inserted into the inner wall of the cooling water channel along the first direction, the shell insertion end and the inner wall of the cooling water channel are in interference fit and are in sealed connection to prevent liquid leakage, and the quick-insertion guide part guides the quick-insertion female end to be connected with the quick-insertion female end connecting part, so that sealing parts of the quick-insertion water pipe joint and the cooling water channel are reduced, and the leakage risk is reduced; when the whole vehicle end fast-inserting female end needs to change the installation direction, the rotating fast-inserting male end pipe body is in interference fit with the cooling water channel and is in sealing connection, the installation direction of the fast-inserting water pipe joint can be flexibly adjusted to adapt to the installation angle of the fast-inserting female end, and the inverter shell does not need to be changed.

According to the utility model discloses a another embodiment, the casing inserts the end and through glue sealing connection between the inner wall of cooling water course.

According to the utility model discloses a further concrete implementation mode, the casing inserts the protruding spacing portion of inserting that is equipped with of end surface, insert spacing portion and be used for the restriction the casing inserts the end position that the end inserted the inner wall of cooling water course, follow first direction, insert spacing portion compare in female end connecting portion of inserting soon are close to the casing inserts the end.

According to the utility model discloses a another embodiment, follow first direction, insert the public end body soon and keep away from the outer peripheral face that the casing inserted the end the other end is for inserting female end sealed face soon, insert female end sealed face soon be used for with insert female end sealing connection soon.

According to the utility model discloses a further embodiment, follow first direction, female end connecting portion of inserting soon encircle locate female end sealed face of inserting soon with insert between the spacing portion, and with insert spacing portion and be in there is the spacing distance of settlement in the first direction.

According to the utility model discloses a further embodiment, the outer peripheral face of inserting public end body soon is equipped with rotation-proof structure, insert female end connecting portion soon the inner peripheral surface be equipped with rotation-proof structure corresponding joint portion, rotation-proof structure with joint portion cooperatees, with the restriction insert female end connecting portion soon and follow circumference is relative insert public end body soon and move.

According to another specific embodiment of the present invention, the outer peripheral surface of the quick-insertion male end pipe body is provided with a convex portion, the convex portion is provided with a notch, and the notch serves as the anti-rotation structure; the clamping portion is of a protruding structure, and the protruding structure is located in the notch.

According to the utility model discloses a further embodiment, insert female end connecting portion soon and follow circumference is equipped with the spacing groove, the external diameter of spacing groove is less than insert female end connecting portion soon's external diameter, the spacing groove can fixed connection insert female end soon.

According to the utility model discloses a further embodiment, insert the public end body soon and make by the metal material, insert female end connecting portion soon and pass through plastics material injection moulding.

According to another embodiment of the present invention, the male end body is circular.

The utility model discloses an embodiment still discloses an electronic equipment based on insert water pipe head soon, electronic equipment includes: a cooling water channel; the quick water pipe joint of any preceding claim, the casing of quick water pipe joint inserts the end and inserts along the first direction the inner wall of cooling water course, the casing insert the end with the inner wall interference fit of cooling water course, and sealing connection.

Adopt above-mentioned technical scheme, the casing inserts the end and inserts the inner wall that the cooling water course was inserted along first direction, and the outer peripheral face that the casing inserted the end and the inner wall interference fit of cooling water course to through glue sealing connection, prevent the seepage of liquid.

According to another embodiment of the present invention, the electronic device is an inverter, the inverter includes an inverter case, and the inverter case is provided with the cooling water passage.

Drawings

FIG. 1 shows a perspective view of a joint used in a prior art embodiment;

fig. 2 is a perspective view of a quick-plug water pipe joint according to an embodiment of the present invention;

fig. 3 is a perspective view illustrating the connection of the quick-plug water pipe joint and the inverter housing according to the embodiment of the present invention;

fig. 4 is a cross-sectional view of the connection of the quick-plug water pipe joint with the inverter housing and the quick-plug female end according to the embodiment of the present invention;

fig. 5 shows an exploded view of a quick-connect water pipe coupling according to an embodiment of the present invention;

fig. 6 shows a cross-sectional view of a quick-connect water pipe coupling in accordance with an embodiment of the present invention;

FIG. 7 is an enlarged view of an anti-rotation structure according to an embodiment of the present invention;

fig. 8 shows a cross-sectional view of an anti-rotation structure of a quick-plug water pipe joint according to an embodiment of the present invention.

Reference numerals: 1. an inverter case; 2. quickly inserting the female end; 3. an injection molding plug; 301. quickly inserting a water pipe joint; 4. a seal ring; 5. a screw; 501. screw holes; 502. screw holes; 6. a cooling water channel; 7. positioning ribs; 8. quickly inserting the male end pipe body; 801. a housing insertion end; 802. inserting the limiting part; 803. a convex portion; 8030. an anti-rotation structure; 804. a quick-insert female end sealing surface; 9. a quick-insertion female end connection portion; 901. a quick-insertion female end guide part; 902. a clamping part; 903. a limiting groove; 11. water channel mouth convex part; 12. an inverter.

Detailed Description

The following description is given for illustrative embodiments of the invention, and other advantages and effects of the invention will be apparent to those skilled in the art from the disclosure of the present invention. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 shows a possible embodiment, the inverter housing 1 includes a cooling water channel 6, the cooling water channel 6 is hermetically connected with the injection molding plug 3, and the injection molding plug 3 is used as a male head (i.e. a male end) of the coolant interface and is connected with a female head (not shown in fig. 1), i.e. a female end) of the coolant interface, so as to supply coolant to the cooling water channel 6 to reduce the temperature of the inverter.

Illustratively, the injection-molded part plug 3 is sealed with the inverter housing 1 by a sealing ring 4 and fastened with a screw 5 with the inverter housing 1. One end of the injection molding plug 3 close to the inverter housing 1 is provided with two screw holes 502 along a second direction (shown in a Z direction in fig. 1), and two screw holes 501 are also provided at corresponding positions of the inverter housing 1, so that screws 5 are inserted into the screw holes 501 and 502 to fixedly connect the injection molding plug 3 with the inverter housing 1. Still be equipped with location muscle 7 on the injection molding plug 3, location muscle 7 plays the guide effect, inserts female end soon and pegs graft with injection molding plug 3 along the direction of location muscle 7. Use injection molding plug 3 can realize inserting female end soon and insert the connection, but need use sealing washer 4 sealed, screw 5 fastening, part is in large quantity, and assembly process is complicated, and the adaptation angle is inflexible, and injection molding plug 3 can't rotate, if need change insert female installation angle of end soon, change on the inverter casing 1 is big, and is with high costs.

For this reason, the embodiment of the present application provides another quick-insertion water pipe joint, and referring to fig. 2, the number of sealing parts between the quick-insertion water pipe joint 301 and the cooling water channel 6 is reduced. And the installation direction of the quick-plugging water pipe joint 301 can be flexibly adjusted to adapt to the installation angle of the quick-plugging female end, the inverter shell 1 does not need to be changed, and the cost is low.

Specifically, referring to fig. 2 and 3, the present application provides a quick-connect water coupling 301 comprising: a quick-insert male end pipe body 8 and a quick-insert female end connecting part 9. The quick-plug male end pipe body 8 extends along a first direction (shown in an X direction in fig. 2), the quick-plug male end pipe body 8 includes a shell insertion end 801, the shell insertion end 801 is used for being inserted into an inner wall of the cooling water channel 6 along the first direction, and the shell insertion end 801 and the inner wall of the cooling water channel 6 are in interference fit and are in sealed connection. Illustratively, in the first direction, and in the direction of insertion of the quick-plug water pipe connector 301 into the cooling water channel 6, the outer diameter of the shell insertion end 801 near the cooling water channel 6 is gradually reduced, so that the quick-plug water pipe connector 301 smoothly enters the cooling water channel 6. The quick-insertion female end connecting portion 9 is circumferentially disposed on the outer circumferential surface of the quick-insertion male end pipe body 8, and is stationary relative to the quick-insertion male end pipe body 8 along a circumferential direction (shown by a direction R in fig. 2), and circumferentially surrounds the first direction.

Referring to fig. 3 and 4, the quick-insertion female end connection portion 9 is used for connecting the quick-insertion female end 2, the quick-insertion female end connection portion 9 is provided with a quick-insertion female end guide portion 901, and the quick-insertion female end guide portion 901 is used for guiding the quick-insertion female end 2 to be connected with the quick-insertion female end connection portion 9. Illustratively, referring to fig. 2 and 5, the quick-insertion female end guide 901 is a square structure, and is disposed on the outer peripheral surface of the quick-insertion female end connecting portion 9 near the housing insertion end 801, the length direction of the quick-insertion female end guide 901 is parallel to the first direction (indicated by X direction in fig. 5), and the end surface of the quick-insertion female end guide 901 near the housing insertion end 801 is flush with the end surface of the quick-insertion female end connecting portion 9 near the housing insertion end 801.

Illustratively, referring to fig. 4, when the quick-connect female end 2 is connected to the quick-connect female end connection 9, the quick-connect female end 2 encases a portion of the quick-connect male end tube 8 and the quick-connect female end connection 9.

With the above technical solution, referring to fig. 2 and 4, the housing insertion end 801 is inserted into the inner wall of the cooling water channel 6 along the first direction (shown in the X direction in fig. 2), and the outer circumferential surface of the housing insertion end 801 is in interference fit with the inner wall of the cooling water channel 6, and is hermetically connected to prevent liquid leakage. This process reduces the sealing and fastening parts between the quick-insertion water pipe fitting 301 and the cooling water channel 6, and reduces the risk of liquid leakage. Meanwhile, referring to fig. 3 and 4, the quick-insertion guide 901 indicates a direction to guide the insertion direction of the quick-insertion female terminal 2 to achieve smooth connection with the quick-insertion female terminal connection part 9. For different motorcycle types of adaptation, insert female end 2 soon and connect the orientation of coming indefinite, and insert public end body 8 orientation wantonly soon, need not to modify the mould and just can satisfy the connection demand of inserting female end 2 different angles soon, it is with low costs.

Illustratively, referring to fig. 2 and 4, the quick-insertion male end pipe 8 is circular, and the quick-insertion male end pipe 8 is convenient to rotate along the circumferential direction (shown in the direction R in fig. 2) so as to adapt to different installation angles of the quick-insertion female end 2. The installation direction can be adjusted in a flexible way to insert public end body 8 soon promptly, need not to change inverter housing 1, and is with low costs.

In some possible embodiments, referring to fig. 2 and 4, the housing insertion end 801 and the inner wall of the cooling water channel 6 are connected in a sealing manner by glue. Illustratively, glue may be pre-coated on the inner wall of the cooling water channel 6 or on the outer circumferential surface of the housing insertion end 801, and the glue is solidified to fill and bond the gap between the housing insertion end 801 and the inner wall of the cooling water channel 6, so as to achieve a sealing connection based on an interference fit between the outer circumferential surface of the housing insertion end 801 and the inner wall of the cooling water channel 6, thereby preventing liquid leakage.

In some possible embodiments, referring to fig. 2 and 5, the housing insertion end 801 is convexly provided with an insertion limiting portion 802 on a surface thereof, the insertion limiting portion 802 is used for limiting a termination position of the housing insertion end 801 to be inserted into an inner wall of the cooling water channel 6, and the insertion limiting portion 802 is closer to the housing insertion end 801 than the quick-insertion female-end connecting portion 9 along a first direction (shown by an X direction in fig. 5). Illustratively, referring to fig. 2, the insertion limiting portion 802 is in a convex ring shape, and when the housing insertion end 801 is inserted into the inner wall of the cooling water channel 6 along the first direction, the insertion limiting portion 802 can abut against the water channel opening protruding portion 11, as shown in fig. 3, so as to limit the continuous entry of the quick-insertion water pipe connector 301, and prompt the user to stop inserting the quick-insertion water pipe connector 301 into the cooling water channel 6.

In some possible embodiments, referring to fig. 4 and 5, the outer peripheral surface of the other end of the male quick-connect pipe 8 from the housing insertion end 801 in the first direction (shown in the direction X in fig. 5) is a quick-connect female end sealing surface 804, and the quick-connect female end sealing surface 804 is used for sealing connection with the quick-connect female end 2 to prevent liquid leakage. Illustratively, the outer diameter of the quick plug female end sealing surface 804 is greater than the outer diameter of the housing insertion end 801, while the length of the quick plug female end sealing surface 804 in the first direction is less than the length of the housing insertion end 801, with the outer diameter of the quick plug female end connection 9 being tapered proximate to the quick plug female end sealing surface 804. Referring to fig. 4, when the quick insert female end 2 is connected to the quick insert female end connection portion 9, the quick insert female end sealing surface 804 is covered by the quick insert female end 2 and is connected in a sealing manner, so that liquid leakage is effectively prevented.

In some possible embodiments, referring to fig. 6, along a first direction (shown as X direction in fig. 6), the quick plug female end connection portion 9 is circumferentially disposed between the quick plug female end sealing surface 804 and the insertion limiting portion 802 at a set distance from the insertion limiting portion 802 in the first direction. Illustratively, the separation distance between the quick-insertion female end connecting portion 9 and the insertion stopper portion 802 in the first direction is 8mm. Illustratively, one end surface of the quick male end connection 9 meets an end surface of the adjacent quick male end sealing surface 804. The structural features of the quick-plug female end connection 9 may be designed according to the mating requirements of the quick-plug female end.

In some possible embodiments, referring to fig. 5 and 8, the outer circumferential surface of the male quick-insertion end pipe 8 is provided with an anti-rotation structure 8030, the inner circumferential surface of the female quick-insertion end connecting portion 9 is provided with a clamping portion 902 corresponding to the anti-rotation structure 8030, and the anti-rotation structure 8030 cooperates with the clamping portion 902 to limit the movement of the female quick-insertion end connecting portion 9 relative to the male quick-insertion end pipe 8 along the circumferential direction, as shown in fig. 8. Illustratively, referring to fig. 7, the anti-rotation structure 8030 is a small groove.

In some possible embodiments, referring to fig. 5 and 8, the outer circumferential surface of the quick-insertion male end pipe body 8 is provided with a protrusion 803, and the protrusion 803 is provided with a notch as an anti-rotation structure 8030; joint portion 902 is protruding structure, and protruding structure is located the breach, so can insert female end connecting portion 9 soon and insert public end body 8 soon fixed as a whole, prevents to insert female end connecting portion 9 soon relatively and inserts public end body 8 circumference (R direction is shown in fig. 5) rotation to make insert female end guide portion 901 soon and be located suitable position, in order to do benefit to inserting female smooth inserting of end soon. Illustratively, referring to fig. 5, the protrusion 803 and the insertion-limiting portion 802 are circular rings having the same shape and size, the distance between the protrusion 803 and the insertion-limiting portion 802 in the first direction (indicated by the direction X in fig. 5) is set to 13mm, the distance between the protrusion 803 and the quick-insertion-female-end sealing surface 804 in the first direction is set to 12mm, and the quick-insertion-female-end connecting portion 9 can be received between the insertion-limiting portion 802 and the quick-insertion-female-end sealing surface 804.

In some possible embodiments, referring to fig. 5, the quick-insert female end connecting portion 9 is provided with a limiting groove 903 along the circumferential direction (shown in the direction R in fig. 5), the outer diameter of the limiting groove 903 is smaller than that of the quick-insert female end connecting portion 9, and the limiting groove 903 can be fixedly connected with the quick-insert female end. Illustratively, the quick plug female end guide 901 is located between an end surface of the quick plug female end connection 9 adjacent to the quick plug female end sealing surface 804 and the limit groove 903 in a first direction (shown in the X direction in fig. 5).

In some possible embodiments, referring to fig. 2, the quick-insertion male end tube 8 is made of metal and the quick-insertion female end connection 9 is injection-molded by plastic. Illustratively, the inverter housing 1 is made of aluminum alloy, and when the quick-insertion male end pipe body 8 is made of metal, the interference fit between the housing insertion end 801 and the inner wall of the cooling water channel 6 can be realized to prevent liquid leakage.

The utility model discloses an embodiment has still disclosed an electronic equipment based on above-mentioned quick water pipe head 301 that inserts, refer to fig. 2 and fig. 4, and electronic equipment includes: a cooling water channel 6; in the quick-plug water pipe connector 301, the housing insertion end 801 of the quick-plug water pipe connector 301 is inserted into the inner wall of the cooling water channel 6 along the first direction (shown in the X direction in fig. 2), and the housing insertion end 801 and the inner wall of the cooling water channel 6 are in interference fit and are hermetically connected, as shown in fig. 4.

With the above technical solution and referring to fig. 4, the housing insertion end 801 is inserted into the inner wall of the cooling water channel 6 along the first direction (shown in the X direction in fig. 4), and the outer circumferential surface of the housing insertion end 801 is in interference fit with the inner wall of the cooling water channel 6 and is hermetically connected by glue, so as to prevent liquid leakage.

In some possible embodiments, referring to fig. 4, the electronic device is an inverter 12, the inverter 12 including an inverter case 1, the inverter case 1 being provided with a cooling water passage 6.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A quick-plug water pipe joint, characterized in that it comprises:

the quick-insertion male end pipe body extends along a first direction, and comprises a shell insertion end, wherein the shell insertion end is used for being inserted into the inner wall of the cooling water channel along the first direction, and the shell insertion end is in interference fit with the inner wall of the cooling water channel and is in sealed connection with the inner wall of the cooling water channel;

insert female end connecting portion soon, encircle and locate insert the outer peripheral face of public end body soon to it is relative along circumference insert public end body soon statically, circumference encircles the first direction, insert female end connecting portion soon and be used for connecting insert female end soon, insert female end connecting portion soon and be equipped with insert female end guide part soon, insert female end guide part soon and be used for the guide insert female end soon with insert female end connecting portion soon and connect.

2. The quick-connect water pipe coupling of claim 1, wherein said housing insertion end is sealingly connected to an inner wall of said cooling gallery by glue.

3. The quick-plug water pipe joint according to claim 1, wherein said housing insertion end surface is convexly provided with an insertion-limiting portion for limiting a termination position of said housing insertion end to be inserted into an inner wall of said cooling water passage, said insertion-limiting portion being closer to said housing insertion end than to said quick-plug female end connecting portion in said first direction.

4. The quick-connect water pipe coupling of claim 3, wherein, in said first direction, the outer peripheral surface of the other end of said quick-connect male pipe body remote from said insertion end of said housing is a quick-connect female end sealing surface for sealing engagement with said quick-connect female end.

5. The quick connect water coupling of claim 4 wherein said quick connect female end coupling portion is circumferentially disposed between said quick connect female end sealing surface and said insertion limiting portion in said first direction and spaced a predetermined distance from said insertion limiting portion in said first direction.

6. The quick-connect water pipe joint as recited in claim 1, wherein the outer peripheral surface of the quick-connect male end pipe body is provided with an anti-rotation structure, the inner peripheral surface of the quick-connect female end connecting portion is provided with a clamping portion corresponding to the anti-rotation structure, and the anti-rotation structure is matched with the clamping portion to limit the quick-connect female end connecting portion from moving relative to the quick-connect male end pipe body along the circumferential direction.

7. The quick-connect water pipe coupling according to claim 6, wherein the outer peripheral surface of the quick-connect male end pipe body is provided with a convex part, the convex part is provided with a notch, and the notch is used as the anti-rotation structure; the clamping portion is of a protruding structure, and the protruding structure is located in the notch.

8. The quick-plug water pipe joint as recited in claim 1, wherein the quick-plug female end connecting portion is provided with a limiting groove along the circumferential direction, the limiting groove has an outer diameter smaller than that of the quick-plug female end connecting portion, and the limiting groove can be fixedly connected with the quick-plug female end.

9. An electronic device, comprising:

a cooling water channel;

the quick-plug water pipe coupling of any one of claims 1 to 8, said housing insertion end of said quick-plug water pipe coupling being inserted into an inner wall of said cooling water channel in said first direction, said housing insertion end and said inner wall of said cooling water channel being in interference fit and sealingly connected.

10. The electronic device according to claim 9, wherein the electronic device is an inverter including an inverter case provided with the cooling water passage.

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