CN110726023B

CN110726023B - Joint assembly and charging kit

Info

Publication number: CN110726023B
Application number: CN201910939198.2A
Authority: CN
Inventors: 吴章军
Original assignee: Langfang Shuchang Automobile Components Co ltd
Current assignee: Langfang Shuchang Automobile Components Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-07-20
Anticipated expiration: 2039-09-30
Also published as: CN110726023A

Abstract

The invention provides a connector assembly and a charging kit. The first plug is pressed on the first plugging part through the first elastic piece by the first connector of the connector assembly so as to plug the first central channel and block liquid in the pipeline on one side of the first connector from flowing out; the second joint presses the second plug to the second plugging part through the second elastic piece so as to plug the second central channel and block liquid in the pipeline on one side of the second joint from flowing out. After the first joint is connected with the second joint, the first plug is abutted against the second plug, and then the first elastic piece and the second elastic piece are compressed respectively, so that the first plug is far away from the first plugging part, the first central channel is opened, the second plug is far away from the second plugging part, and the second central channel is opened, so that the first central channel is communicated with the second central channel, and finally, the communication of the pipeline connected with the first joint and the pipeline connected with the second joint is realized.

Description

Joint assembly and charging kit

Technical Field

The invention relates to the technical field of power batteries, in particular to a joint assembly and a charging kit.

Background

Compared with the traditional fuel oil automobile, the electric automobile has the great advantages of environmental protection and energy conservation, and the development is very rapid. Just like fuel automobile relies on filling station, electric automobile is through filling electric pile charge continuation of journey. The charging pile charges the electric automobile with higher power so as to improve the charging speed of the electric automobile, and the high-power quick charging inevitably causes the vehicle-mounted battery to generate larger heat. Therefore, a cooling device is arranged on the charging pile to cool the vehicle-mounted battery in the electric automobile.

The cooling device generally comprises a cooling liquid tank, a cooling liquid input pipeline and a cooling liquid output pipeline which are respectively communicated with the cooling liquid tank, and the cooling liquid input pipeline and the cooling liquid output pipeline are also respectively communicated with a cooling pipeline of the vehicle-mounted battery, so that the cooling liquid tank and the cooling pipeline of the vehicle-mounted battery form a cooling loop, and the vehicle-mounted battery is cooled.

All be provided with the valve on the cooling pipe way of coolant liquid input pipeline, coolant liquid output pipeline and on-vehicle battery, after the cooling pipe way of on-vehicle battery is connected with coolant liquid input pipeline, coolant liquid output pipeline respectively, the valve is opened respectively to the subdividing makes the coolant liquid circulate, not only leads to each pipeline structure complicated moreover, complex operation, waste time.

Disclosure of Invention

The invention provides a joint assembly and a charging kit, which are used for solving the technical problems that valves are arranged on a cooling pipeline of an existing cooling liquid input pipeline, an existing cooling liquid output pipeline and a cooling pipeline of a vehicle-mounted battery, so that the structure of each pipeline is complex, the cooling operation is complex, and the time is wasted.

A first aspect of the invention provides a joint assembly comprising: a first joint and a second joint; the first joint comprises a first body, a first elastic part, a first plug and a first blocking ring, the first body is provided with a first central channel, the first end of the first central channel is fixedly connected with the first blocking ring, the second end of the first central channel is provided with a first blocking part, the first elastic part is accommodated in the first central channel, the first end of the first elastic part is abutted against the first blocking ring, the second end of the first elastic part presses the first end of the first plug against the first blocking part to block the first central channel, and the second end of the first plug extends out of the first central channel; the second joint comprises a second body, a second elastic piece, a second plug and a second baffle ring, the second body is provided with a second central channel, the first end of the second central channel is fixedly connected with the second baffle ring, a second plugging part is arranged in the second central channel, the second elastic piece is accommodated in the second central channel, the first end of the second elastic piece is abutted against the second baffle ring, and the second end of the second elastic piece presses the second plug against the second plugging part to plug the second central channel; the second plug is received within the second central passage; one end, far away from the second blocking ring, of the second body is fixedly connected with one end, far away from the first blocking ring, of the first body, the second end of the first plug is abutted to the second plug, the first plug compresses the first elastic piece, and the second plug compresses the second elastic piece, so that the first central channel is communicated with the second central channel.

Compared with the prior art, the joint assembly provided by the first aspect of the invention has the following advantages:

the joint assembly provided by the invention comprises a first joint and a second joint, wherein the first joint presses a first plug on a first plugging part through a first elastic piece so as to plug a first central channel and block liquid in a pipeline on one side of the first joint from flowing out, and the second joint presses a second plug on a second plugging part through a second elastic piece so as to plug a second central channel and block liquid in a pipeline on one side of the second joint from flowing out. When first central passage and second central passage need to be communicated, only first joint and second joint need to be connected, first end cap and second end cap can be abutted, and then first elastic piece and second elastic piece are compressed respectively, so that first end cap is far away from first shutoff portion and first central passage is opened, second end cap is far away from second shutoff portion and second central passage is opened, thereby first central passage and second central passage are communicated, finally, the communication of the pipeline connected with first joint and the pipeline connected with second joint is realized, the operation is simple and fast, and the time is saved. In addition, the joint assembly is arranged at the port of the pipeline, a valve does not need to be arranged on the pipeline, and the pipeline structure is simplified.

As an improvement of the above joint assembly of the present invention, a first groove is formed in an inner side wall of the second end of the first central passage, a first blocking ring is arranged in the first groove, and the first blocking part is formed on the first blocking ring; and a second groove is formed in the inner side wall of the second central channel, a second plugging ring is arranged in the second groove, and the second plugging ring forms the second plugging part.

As a modification of the above joint assembly of the present invention, the inner sidewall of the second end of the first central passage extends toward the center thereof to form a first wall, the first wall extends toward the first retainer ring to form a second wall, and the inner sidewall of the first central passage, the first wall and the second wall form the first groove; the first plugging ring comprises a first fixing part and a first plugging part, the first fixing part is connected with the first plugging part, the first fixing part is accommodated in the first groove, and a first plugging inclined plane is formed on the first plugging part; the first plug is provided with a first matching inclined plane matched with the first plugging inclined plane.

As an improvement of the above joint assembly of the present invention, the first plug includes a first plugging plate and an abutting head, the first plugging plate is formed with the first matching inclined surface, a first end of the abutting head is fixedly connected to the first plugging plate, and a second end of the abutting head extends out of the first central passage to abut against the second plug.

As an improvement of the above joint assembly of the present invention, the first plug further includes a first column fixedly connected to the first plugging plate; the inner side wall of the first central channel is provided with a first matching groove matched with the first column body.

As an improvement of the above joint assembly of the present invention, the inner sidewall of the second central passage extends toward the center thereof to form a third wall, the third wall extends toward the second retainer ring to form a fourth wall, and the inner sidewall of the second central passage, the third wall and the fourth wall form the second groove; the second plugging ring comprises a second fixing part and a second plugging part, the second fixing part is connected with the second plugging part, the second fixing part is accommodated in the second groove, and a second plugging inclined plane is formed on the second plugging part; the second plug is provided with a second matching inclined plane matched with the second plugging inclined plane.

As an improvement of the above joint assembly of the present invention, the second plug includes a second plugging plate and a second column fixedly connected to the second plugging plate, and the second plugging plate is formed with the second matching inclined plane; and a second matching groove matched with the second cylinder is formed on the inner side wall of the second central channel.

As an improvement of the above joint assembly of the present invention, the joint assembly further includes a clamp spring for clamping and fixing the first body and the second body; a first sealing ring is arranged between the first body and the second body.

As a modification of the above joint assembly of the present invention, the first elastic member is the same as the second elastic member.

A second aspect of the invention provides a charging kit comprising a power supply device, a device to be charged and the connector assembly of the first aspect; the power supply equipment is provided with a cooling device, and the cooling device is provided with a cooling liquid circulation pipeline; the device to be charged comprises a cooling pipeline; the first joint of the joint assembly is connected with the coolant circulation pipe, and the second joint of the joint assembly is connected with the cooling pipe.

The charging kit provided by the second aspect of the present invention has the same advantages as the connector assembly of the first aspect, since it includes the connector assembly of the first aspect.

In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the joint assembly and the charging kit of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description of the embodiments.

Drawings

In order to illustrate embodiments of the invention or prior art solutions more clearly, the drawings that are needed in the description of the embodiments of the invention or prior art will be briefly described below, it being understood that the drawings in the following description are only some embodiments of the invention, and that these drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but rather to illustrate it to those skilled in the art by reference to specific embodiments, and that other drawings may be obtained by those skilled in the art without inventive effort.

FIG. 1 is a cross-sectional view of a joint assembly provided in accordance with an embodiment of the present invention as it is joined;

FIG. 2 is a schematic structural diagram of a joint assembly according to an embodiment of the present invention;

FIG. 3 is an exploded view of a first joint of a joint assembly provided by an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a first fitting of the fitting assembly provided by an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the first body of the first fitting of FIG. 4;

FIG. 6 is an exploded view of a second joint of the joint assembly provided by an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a second fitting of the fitting assembly provided by an embodiment of the present invention;

fig. 8 is a cross-sectional view of the second body of the second connector of fig. 7.

Description of reference numerals:

1: a first joint;

11: a first body; 111: a first central channel; 112: a first groove; 113: a first wall; 114: a second wall; 115: a first rib; 116: a second convex strip; 117: a first mating groove; 118: a first seal groove; 119: a clamping groove; 120: a first abutment ring; 121: a first fixing convex strip;

12: a first elastic member;

13: a first plug; 131: a first plugging plate; 1311: a first mating ramp; 132: a butting head; 133: a first column;

14: a first bamboo joint; 141: a first retainer ring; 142: a second seal ring;

15: a first plugging ring; 151: a first fixed part; 152: a first blocking portion;

2: a second joint;

21: a second body; 211: a second central channel; 212: a second groove; 213: a third wall; 214: a fourth wall; 215: a third rib; 216: a fourth rib; 217: a second mating groove; 218: clamping the opening; 219: a second abutment ring; 220: a second fixing convex strip;

22: a second elastic member;

23: a second plug; 231: a second plugging plate; 2311: a second mating ramp; 232: a second cylinder;

24: a second bamboo joint; 241: a second retainer ring; 242: a third seal ring;

25: a second sealing ring; 251: a second fixed part; 252: a second sealing part;

3: a first seal ring;

4: and a clamp spring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

FIG. 1 is a cross-sectional view of a joint assembly provided in accordance with an embodiment of the present invention as it is joined; FIG. 2 is a schematic structural diagram of a joint assembly according to an embodiment of the present invention; FIG. 3 is an exploded view of a first joint of a joint assembly provided by an embodiment of the present invention; FIG. 4 is a cross-sectional view of a first fitting of the fitting assembly provided by an embodiment of the present invention; FIG. 5 is a cross-sectional view of the first body of the first fitting of FIG. 4; FIG. 6 is an exploded view of a second joint of the joint assembly provided by an embodiment of the present invention; FIG. 7 is a cross-sectional view of a second fitting of the fitting assembly provided by an embodiment of the present invention; fig. 8 is a cross-sectional view of the second body of the second connector of fig. 7.

Referring to fig. 1 and 2, the present invention provides a joint assembly comprising: a first joint 1 and a second joint 2; the first joint 1 includes a first body 11, a first elastic member 12, a first plug 13 and a first blocking ring 141, the first body 11 is provided with a first central passage 111, a first end of the first central passage 111 is fixedly connected to the first blocking ring 141, a second end of the first central passage 111 is provided with a first blocking portion 152, the first elastic member 12 is accommodated in the first central passage 111, and a first end of the first elastic member 12 abuts against the first blocking ring 141, a second end of the first elastic member 12 presses the first end of the first plug 13 against the first blocking portion 152 to block the first central passage 111, and a second end of the first plug 13 extends out of the first central passage 111.

The second joint 2 comprises a second body 21, a second elastic member 22, a second plug 23 and a second retaining ring 24, the second body 21 is provided with a second central passage 211, a first end of the second central passage 211 is fixedly connected with the second retaining ring 24, a second blocking portion 252 is arranged in the second central passage 211, the second elastic member 22 is accommodated in the second central passage 211, a first end of the second elastic member 22 is abutted against the second retaining ring 24, and a second end of the second elastic member 22 presses the second plug 23 against the second blocking portion 252 to block the second central passage 211; the second plug 23 is received within the second central passage 211.

One end of the second body 21, which is far away from the second stopper ring 24, is fixedly connected with one end of the first body 22, which is far away from the first stopper ring 141, the second end of the first plug 13 abuts against the second plug 23, the first plug 13 compresses the first elastic member 12, and the second plug 23 compresses the second elastic member 22, so that the first central channel 111 and the second central channel 211 are communicated.

Specifically, the first body 11 of the first joint 1 may be a cylindrical structure, a first central passage 111 is provided at the center thereof, and the first central passage 111 may be a circular passage. A first blocking portion 152 is disposed in the first central passage 111 and is used to cooperate with the first plug 13 to block the first central passage 111. The first blocking portion 152 may be a blocking ring protruding from the inner side wall of the first central passage 111, and the first plug 13 abuts against the end face of the blocking ring; the first blocking portion 152 may also be a blocking structure formed by a seal disposed within the first central passage 111.

The first end of the first central passage 111 is fixedly connected to the first stopper ring 141, and the first stopper ring 141 is used for limiting the axial movement of the first elastic member 12. The first baffle ring 141 may be a circular ring structure fixed at a first end of the first central passage 111; the first retainer ring 141 may also be a structure for connecting the first body 11 and the pipe, such as a pipe connection sleeve, a pipe connection joint, etc., and its specific structure may be selected according to different pipe types. In some embodiments, with reference to fig. 3 and 4, the first end of the first central channel 111 is fixedly connected to the first bamboo joint 14, for example, the first bamboo joint 14 is welded to the first central channel 111, in particular, the first end of the first bamboo joint 14 is provided with a first retaining ring 141, which is accommodated in the first central channel 111 and is welded to the side wall of the first central channel 111; referring to fig. 4, the first body 11 is further provided with a first abutting ring 120 for abutting against the first end of the first bamboo joint 14. The second end of the first bamboo joint 14 is used for being connected with a pipeline, for example, the second end of the first bamboo joint 14 is connected with a nylon pipe, in order to ensure the sealing performance of the first bamboo joint 14 connected with the pipeline, the second end of the first bamboo joint 14 is provided with a sealing groove, and a second sealing ring 142 is installed in the sealing groove. The first slub joint 14 may be a conventional slub joint structure, and is not limited herein.

The first elastic element 12 is accommodated in the first central passage 111, and a first end thereof abuts against the first stop ring 141 and a second end thereof abuts against the first plug 13. In order to press the first plug 13 against the first blocking portion 152 to block the first central passage 111, the first elastic member 12 is a compression elastic member, such as a compression spring, a compression rubber sleeve, or the like.

The first plug 13 is configured to close the first central passage 111, and a first end thereof abuts against and seals the first closing portion 152 under the pressure of the first elastic member 12, thereby closing the first central passage 111. The second end of the first plug 13 extends outside the first central passage 111 for abutting against the second plug 23.

The second body 21 of the second joint 2 may be a cylindrical structure with a second central passage 211 centrally provided, and the second central passage 211 may be a circular passage. A second blocking portion 252 is disposed in the second central passage 211 and is used for cooperating with the second plug 23 to block the second central passage 211. The second blocking portion 252 may be a blocking ring protruding from the inner side wall of the second central passage 211, and the second plug 23 abuts against the end face of the blocking ring; the second blocking portion 252 may also be a blocking structure formed by a seal disposed within the second central passage 211.

The first end of the second central passage 211 is fixedly connected to a second retaining ring 241, and the second retaining ring 241 is used for limiting the axial movement of the second elastic member 22. The second baffle 241 may be a circular ring structure fixed to the first end of the second central passage 211; the second stop ring 241 may also be a structure for connecting the second body 21 and a pipe, such as a pipe connection sleeve, a pipe connection joint, etc., and the specific structure thereof may be selected according to different pipe types. In some embodiments, with reference to fig. 6 and 7, the first end of the second central channel 211 is fixedly connected to the second bamboo joint 24, for example, the second bamboo joint 24 is welded to the second central channel 211, in particular, the first end of the second bamboo joint 24 is provided with a second retaining ring 241, which is accommodated in the second central channel 211 and is welded to the side wall of the second central channel 211; referring to fig. 8, the second body 21 is further provided with a second abutting ring 219 for abutting against the first end of the second bamboo joint 24. The second end of the second bamboo joint 24 is used for being connected with a pipeline, for example, the second end of the second bamboo joint 24 is connected with a nylon pipe, and in order to ensure the sealing performance of the second bamboo joint 24 connected with the pipeline, the second end of the second bamboo joint 24 is provided with a sealing groove, and a third sealing ring 242 is installed in the sealing groove. The second bamboo joint 24 may be an existing bamboo joint structure, and is not limited herein.

The second elastic element 22 is accommodated in the second central passage 211, and a first end of the second elastic element abuts against the second stop ring 241 and a second end of the second elastic element abuts against the second plug 23. In order to press the second plug 23 against the second blocking portion 252 to block the second central passage 211, the second elastic member 22 is a compression elastic member, such as a compression spring, a compression rubber sleeve, or the like.

The second plug 23 is configured to close the second central passage 211, and a first end thereof abuts against and seals the second closing portion 252 by the pressure of the second elastic member 12, thereby closing the second central passage 211. A second end of the second plug 23 is received in the second central passage 111 for abutment with the first plug 13.

When the first joint 1 and the second joint 2 are in an unconnected state, the first elastic element 12 presses the first plug 13 against the first blocking part 152 to block the first central channel 111, so that liquid in a pipeline on the side connected with the first joint 1 cannot flow out; at this time, the second elastic member 22 of the second connector 2 presses the second plug 23 against the second blocking portion 252 to block the second central passage 211, thereby preventing the liquid in the pipe connected to the second connector 2 from flowing out.

When the first connector 1 is connected to the second connector 2, that is, when the first body 11 is connected to the second body 21, at this time, a portion of the first plug 13 extending out of the first central passage 111 is accommodated in the second central passage, and the first plug 13 abuts against the second plug 23, so as to compress the first elastic member 12 and the second elastic member 13 to both sides, respectively, the first plug 13 is separated from the first blocking portion 152, the second plug 23 is separated from the second blocking portion 252, and the first central passage 111 is communicated with the second central passage 211.

The first and second

elastic members

12, 22 may be the same elastic member, for example, both the first and second

elastic members

12, 22 are compression springs; the first elastic member 12 and the second elastic member 22 may be different elastic members, for example, the first elastic member 12 is a compression spring, and the second elastic member 22 is a compression rubber sleeve. In order to facilitate the calculation of the simulation by the technician and to ensure that the first plug 13 and the second plug 23 open the same passage, as a preferred embodiment, the first elastic element 12 is identical to the second elastic element 22.

It should be understood by those skilled in the art that, in order to ensure that the first plug 13 and the second plug 23 can abut against and compress the first elastic member 12 and the second elastic member 22 respectively when the first connector 1 and the second connector 2 are connected, and open the first central passage 111 and the second central passage 211, those skilled in the art comprehensively consider the characteristics of the elastic coefficients and lengths of the first elastic member 12 and the second elastic member 22, the length of the first plug 13 extending out of the first central passage 111, the distance of the second plug 23 from the end surface of the second central passage 211, the length of the connection between the first connector 1 and the second connector 2, the size of the opening when the first plug 13 and the first blocking portion 152 are opened, the size of the opening when the second plug 23 and the second blocking portion 252 are opened, and the property of the liquid to be circulated. For example, the compressible amount of the spring after being installed is 4mm, the interference amount between the first plug 13 and the second plug 23 is 6mm, the two plugs need to move 6mm after the two connectors are assembled to avoid interference, and the maximum compressible amount of the spring is 4mm, so that the first plug 13 and the second plug 23 can both displace.

In summary, the joint assembly provided in the embodiments of the present invention includes a first joint and a second joint, the first joint presses the first plug against the first blocking portion through the first elastic member to block the first central passage to block the liquid in the pipeline on one side of the first joint from flowing out, and the second joint presses the second plug against the second blocking portion through the second elastic member to block the second central passage to block the liquid in the pipeline on one side of the second joint from flowing out. When first central passage and second central passage need to be communicated, only first joint and second joint need to be connected, first end cap and second end cap can be abutted, and then first elastic piece and second elastic piece are compressed respectively, so that first end cap is far away from first shutoff portion and first central passage is opened, second end cap is far away from second shutoff portion and second central passage is opened, thereby first central passage and second central passage are communicated, finally, the communication of the pipeline connected with first joint and the pipeline connected with second joint is realized, the operation is simple and fast, and the time is saved. In addition, the joint assembly is arranged at the port of the pipeline, a valve does not need to be arranged on the pipeline, and the pipeline structure is simplified.

As an alternative embodiment of the first blocking portion 152, the inner side wall of the second end of the first central channel 111 is provided with a first groove 112, a first blocking ring 15 is arranged in the first groove 112, and the first blocking ring 15 is formed with the first blocking portion 152.

For example, the first plugging ring 15 may be an annular seal ring, the outer peripheral side of which is accommodated in the first groove 112, and the inner peripheral side of which forms the first plugging portion 152. The end surface of the first plug 152 abuts against the first plug 13. The end face of the ring-shaped sealing ring may also be formed with an inclined surface, and correspondingly, the first plug 13 may be formed with a matching inclined surface matching with the inclined surface.

For another example, referring to fig. 4, the first sealing ring 15 includes a first fixing portion 151 connected to the first sealing portion 152, the first fixing portion 151 is accommodated in the first recess 112, and the first sealing portion 152 is formed with a first sealing slope. The first fixing portion 151 is perpendicular to the first blocking portion 152. The first blocking portion 152 is a circular ring structure, a first end surface of the first blocking portion is provided with a first fixing portion 151, and a second end surface of the first blocking portion is provided with a first blocking inclined surface, that is, the second end surface of the first blocking portion 152 is a conical ring surface, and the diameter of the conical ring surface is gradually reduced from the first end of the first central channel 111 to the second end thereof.

Referring to fig. 5, to install the first sealing ring 15, the inner sidewall of the second end of the first central passage 111 extends toward the center thereof to form a first wall 113, the first wall 113 extends toward the first retainer ring 141 to form a second wall 114, and the inner sidewall of the first central passage 111, the first wall 113 and the second wall 114 form a first groove 112. The first wall 113 is perpendicular to the inner sidewall of the first central passage 111, the second wall 114 is perpendicular to the first wall 113, and the second wall 114 and the first wall 113 form an L-shaped structure. Under the pressure of the first elastic element 12, one end of the first fixing portion 151 away from the first blocking portion 152 abuts against the bottom of the first groove 112, so as to ensure the sealing performance between the first plug 13 and the first blocking portion 152.

To cooperate with the first blocking inclined surface of the first blocking portion 152, the first plug 13 is provided with a first cooperating inclined surface 1311 cooperating with the first blocking inclined surface. Referring to fig. 3 and 4, the first plug 13 includes a first blocking plate 131 and an abutting head 132, the first blocking plate 131 is formed with a first matching inclined surface 1311, a first end of the abutting head 132 is fixedly connected with the first blocking plate 132, and a second end of the abutting head 132 extends out of the first central passage 111 to abut against the second plug 23.

The first blocking plate 131 is a flat plate structure, and a first end surface thereof is abutted against the first elastic member 12, and a second end surface thereof is fixedly connected with a first end of the abutting head 132. The first blocking plate 131 is formed with a first mating slope 1311 on a side surface thereof, i.e., the first blocking plate 131 is a tapered plate structure, and a diameter of the tapered plate structure near a first end of the first blocking plate 131 is larger, and a diameter of the tapered plate structure near a second end of the first blocking plate 131 is smaller. Of course, the first blocking plate 131 may have other structures, for example, the first blocking plate 131 includes a first tapered plate and a second tapered plate connected to each other, a small diameter end of the first tapered plate is connected to the abutting head 132, a large diameter end of the first tapered plate is connected to a large diameter end of the second tapered plate, and a small diameter end of the second tapered plate is abutted to the first elastic member 12.

The abutment head 132 may be a cylindrical structure, such as a cylindrical structure, a prismatic structure, a truncated cone structure, a pyramid structure, etc. Illustratively, referring to fig. 3, the abutting head 132 includes four trapezoidal plates, and the right-angled sides of the four trapezoidal plates are connected to form a cross-shaped structure; and the longer bottom edges of the four trapezoidal plates are fixedly connected with the second end of the first blocking plate 131. The abutting head 132 with such a structure has a stable structure, and is prevented from being broken off in the abutting process with the second plug 23.

In addition, the first plug 13 further includes a first column 133 fixedly connected to the first blocking plate 131; the inner sidewall of the first central passage 111 is formed with a first fitting groove 117 to be fitted with the first cylinder 133. The first pillars 133 may have a cylindrical structure, and the first pillars 133 may also have a prismatic structure, which is not limited in the embodiment of the present invention. The first column 133 and the abutting head 132 are respectively located at two sides of the first blocking plate 131, and the first column 133 is perpendicular to the first blocking plate 131. The first cylinder 133 is received in the first fitting groove 117 to restrict the circumferential movement of the first blocking plate 131 along the first central passage 111. In addition, when the first plug 13 is installed, the first column 133 can also play a guiding role, so that the first blocking plate 131 is tightly matched with the first blocking portion 142, and a gap caused by the fact that the first plug 13 cannot block the first central channel 111 and liquid in the first central channel 111 leaks due to the fact that the first blocking plate 131 is matched with the first blocking portion 142 to be inclined, inclined and the like is avoided.

The first fitting groove 117 may be a groove formed by outwardly recessing the inner sidewall of the first central passage 111, and the first fitting groove 117 may also be a groove formed by protruding the inner sidewall of the first central passage 111 toward the center thereof to form a rib and forming two ribs therebetween. In some examples of the first engaging groove 117, referring to fig. 5, the inner sidewall of the first central passage 111 is provided with a first rib 115 and a second rib 116 at a relative interval along the circumferential direction thereof, the first rib 115 and the second rib 116 each extend in the axial direction of the first central passage 111, and the first engaging groove 117 is formed between the first rib 115 and the second rib 116.

With reference to fig. 5, a first fixing protrusion 121 extending along the axial direction of the first central passage 12 is further disposed on the inner sidewall of the first central passage 111 for fixing the first blocking ring 15 to prevent the first blocking ring 15 from moving with the first plug 13. Alternatively, the first fixing protrusion 121 is provided in plural, for example, three, four, six, etc., and the plural first fixing protrusions 121 are provided at intervals in the circumferential direction of the first central passage 111.

It is understood that the first plug 13 may include one first column 133, and the first plug 13 may also include two, three or four first columns 133, and the plurality of first columns 133 are spaced apart along the circumference of the first blocking plate 131. Accordingly, the number of the first fitting grooves 117 corresponds to the number of the first posts 133.

As an alternative embodiment of the second blocking portion, the inner side wall of the second central channel 211 is provided with a second groove 212, and a second blocking ring 25 is arranged in the second groove 212, and the second blocking ring 25 is formed with a second blocking portion.

For example, the first seal ring 25 may be an annular seal ring, the outer peripheral side of which is accommodated in the second groove 212 and the inner peripheral side of which forms the second seal portion 252. The end surface of the second closing portion 252 abuts against the second plug 23. The end face of the ring-shaped sealing ring may also be formed with an inclined surface, and correspondingly, the second plug 23 may be formed with a matching inclined surface matching with the inclined surface.

For another example, referring to fig. 7, the second sealing ring 25 includes a second fixing portion 251 and a second sealing portion 252 connected to the second fixing portion 251, the second fixing portion 251 is accommodated in the second recess 212, and the second sealing portion 252 is formed with a second sealing slope. The second fixing portion 251 is perpendicular to the second closing portion 252. The second blocking portion 152 is a circular ring structure, and a first end surface thereof is provided with a second fixing portion 251, and a second end surface thereof is formed with a second blocking inclined surface, that is, the second end surface of the second blocking portion 252 is a conical ring surface, and the diameter of the conical ring surface is gradually reduced from the first end of the second central channel 211 to the second end thereof. The second occlusion ring 25 may correspond to the structure of the first occlusion ring 15.

Referring to fig. 8, to install the second sealing ring 25, the inner sidewall of the second central passage 211 extends toward the center thereof to form a third wall 213, the third wall 213 extends toward the second baffle ring 241 to form a fourth wall 214, and the inner sidewall of the second central passage 211, the third wall 213 and the fourth wall 214 form a second groove 212. The third wall 213 is perpendicular to the inner sidewall of the second central channel 211, the fourth wall 214 is perpendicular to the third wall 213, and the fourth wall 214 and the third wall 213 form an L-shaped structure. Under the pressure of the second elastic element 22, the first end of the second fixing portion 251, which is far away from the second blocking portion 252, abuts against the groove bottom of the second groove 212, so as to ensure the sealing performance between the second plug 23 and the second blocking portion 252.

In order to cooperate with the second inclined blocking surface of the second blocking portion 252, the second plug 23 is provided with a second inclined matching surface 2311 cooperating with the second inclined blocking surface. Referring to fig. 6 and 7, the second plug 23 includes a second blocking plate 231 and a second cylinder 232 fixedly connected to the second blocking plate 231, the second blocking plate 231 is formed with a second engagement slope 2311, and the inner side wall of the second central passage 211 is formed with a second engagement groove 217 engaged with the second cylinder 232.

The second blocking plate 231 is a flat plate structure, one end surface of the second blocking plate is abutted to the second elastic member 22, and the side surface of the second blocking plate forms a second matching inclined surface 2311, that is, the second blocking plate 231 is a tapered plate structure, the diameter of the first end of the tapered plate structure close to the second blocking plate 231 is larger, and the diameter of the second end close to the second blocking plate 231 is smaller. The structure of the second blocking plate 231 may correspond to the structure of the first blocking plate 131.

The second cylinder 232 may have a cylindrical structure, and the second cylinder 232 may also have a prismatic structure, which is not limited in the embodiment of the present invention. The second cylinder 232 is located on one side of the second blocking plate 231 close to the second elastic element 22, and the second cylinder 232 is perpendicular to the second blocking plate 231. The second cylinder 232 is received in the second fitting groove 217 to restrict the circumferential movement of the second blocking plate 231 along the second central passage 231. In addition, when the second plug 13 is installed, the second cylinder 232 can also play a guiding role, so that the second blocking plate 231 and the second blocking portion 242 are tightly matched, and gaps caused by the fact that the second blocking plate 231 and the second blocking portion 242 are matched to incline, skew and the like are avoided, and the second central channel 211 cannot be blocked by the second plug 23, so that liquid in the second central channel 211 is leaked.

The second fitting groove 217 may be a groove formed by outwardly recessing the inner sidewall of the second central passage 211, and the first fitting groove 217 may also be a groove formed by protruding the inner sidewall of the second central passage 211 toward the center thereof to form a rib and forming two ribs therebetween. In some examples of the second fitting groove 217, referring to fig. 8, the inner sidewall of the second central passage 211 is provided with third protruding strips 215 and fourth protruding strips 216 at opposite intervals along the circumferential direction thereof, the third protruding strips 215 and the fourth protruding strips 216 each extend in the axial direction of the second central passage 211, and the second fitting groove 217 is formed between the third protruding strips 215 and the fourth protruding strips 216.

With reference to fig. 8, a second fixing protrusion 220 extending along the axial direction of the second central passage 211 is further disposed on the inner sidewall of the second central passage 211, and is used for fixing the second plugging ring 25 to prevent the second plugging ring 25 from moving along with the second plug 23. Alternatively, the second fixing protrusion 220 is provided in plural, for example, three, four, six, etc., and the plural second fixing protrusions 220 are provided at intervals in the circumferential direction of the second central passage 211.

It is understood that the second plug 23 may include one second column 232, and the second plug 23 may also include two, three or four second columns 232, and the second columns 232 are spaced apart along the circumference of the second blocking plate 231. Accordingly, the number of the second fitting grooves 217 corresponds to the number of the second columns 232.

The first joint 1 and the second joint 2 can be fixedly connected in various ways, for example, the first joint 1 and the second joint 2 are connected by screw threads; for another example, the first joint 1 and the second joint 2 are connected by flanges. (ii) a For another example, the first connector 1 and the second connector 2 are fixedly connected by a snap spring 4. Illustratively, referring to fig. 1 and 2, the first body 11 is provided with a clamping groove 119, the second body 21 is provided with a clamping opening 218, and the clamping opening 218 penetrates through a side wall of the second body 21. One end of the second body 21, which is far away from the second bamboo joint connector 24, is sleeved on one end of the first body 11, which is far away from the first bamboo joint connector 14, and the clamp spring 4 is respectively clamped with the clamping opening 218 and the clamping groove 119, so that the fixed connection between the first body 11 and the second body 21, that is, the fixed connection between the first connector 1 and the second connector 2, is realized.

Wherein, jump ring 4 can include connecting portion and set up first joint portion and the second joint portion at the connecting portion both ends respectively, and first joint portion, connecting portion and second joint portion form a type U structure, and at this moment, joint opening 218 on the second body 21 is provided with two, first joint portion respectively with one of them joint opening 218, joint groove 119 joint, second joint portion respectively with one of them other joint opening 218, joint groove 119 joint, thereby realize the fixed connection of first joint and second joint 2. Of course, the circlip 4 may be other circlip structures in the prior art, and is not limited herein.

In order to ensure the tightness of the connection of the first joint 1 and the second joint 2, a first seal 3 is provided between the first body 11 and the second body 21. Specifically, the first body 11 is provided with a first seal groove 118, and the first seal ring 3 is installed in the first seal groove 118.

The invention also provides a charging kit, which comprises power supply equipment, equipment to be charged and a joint component; wherein the power supply equipment is provided with a cooling device, and the cooling device is provided with a cooling liquid circulation pipeline; the device to be charged comprises a cooling pipeline; the first joint 1 of the joint assembly is connected to the coolant circulation line and the second joint 2 of the joint assembly is connected to the cooling line.

The structure, function and effect of the joint assembly provided in this embodiment are the same as those of the above embodiment, and specific reference may be made to the above embodiment, which is not described herein again.

In a specific embodiment, the power supply device can be a charging pile, and a cooling device is arranged in the charging pile; the device to be charged can be a vehicle-mounted battery of an electric automobile, a cooling pipeline is wound on the outer side of the vehicle-mounted battery, and an input port and an output port of the cooling pipeline are both connected with the second connector 2. The cooling device can include coolant storage jar, coolant circulation pipeline and power pump etc. wherein, coolant circulation pipeline includes coolant output pipeline and the coolant return line that communicates with coolant storage jar respectively, and the port of coolant output pipeline and coolant return line all is connected with first joint 1. When the electric automobile needs to be charged by using the charging pile, a user can automatically connect the first connector 1 of the cooling liquid output pipeline with the second connector 2 of the input port of the cooling pipeline, so that the cooling liquid output pipeline is communicated with the cooling pipeline; connect the first joint 1 of coolant liquid backflow pipeline and the second articulate of cooling tube output port for cold district liquid backflow pipeline and cooling tube communicating pipe, thereby make the circulative cooling route of intercommunication coolant liquid, in order to lower the temperature to electric automobile's battery, easy operation is convenient, saves time. After the completion of charging, connect 2 disconnect-type casings with first joint 1 and second, the liquid in cooling tube, coolant liquid output pipeline and the coolant liquid backflow pipeline all can not flow out, need not to set up the stop valve at above-mentioned cooling tube, coolant liquid output pipeline and coolant liquid backflow pipeline for cooling tube and cooling device simple structure still are favorable to saving the cost.

Since the charging kit provided by the present invention includes the connector assembly described in the above embodiment, the charging kit provided by the present invention also has the same advantages as the connector assembly described in the above embodiment.

It will be understood by those skilled in the art that the present invention has been described with reference to the structure, function and effect of the joint assembly for cooling devices of electric vehicles and charging piles, but the joint assembly provided by the present invention may be applied to other pipes for flowing liquid and gas, and the present invention is not limited thereto.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connector assembly, comprising: a first joint and a second joint;

the first joint comprises a first body, a first elastic part, a first plug and a first blocking ring, the first body is provided with a first central channel, the first end of the first central channel is fixedly connected with the first blocking ring, the second end of the first central channel is provided with a first blocking part, the first elastic part is accommodated in the first central channel, the first end of the first elastic part is abutted against the first blocking ring, the second end of the first elastic part presses the first end of the first plug against the first blocking part to block the first central channel, and the second end of the first plug extends out of the first central channel;

the second joint comprises a second body, a second elastic piece, a second plug and a second baffle ring, the second body is provided with a second central channel, the first end of the second central channel is fixedly connected with the second baffle ring, a second plugging part is arranged in the second central channel, the second elastic piece is accommodated in the second central channel, the first end of the second elastic piece is abutted against the second baffle ring, and the second end of the second elastic piece presses the second plug against the second plugging part to plug the second central channel; the second plug is received within the second central passage;

one end, far away from the second blocking ring, of the second body is fixedly connected with one end, far away from the first blocking ring, of the first body, the second end of the first plug is abutted against the second plug, the first plug compresses the first elastic piece, and the second plug compresses the second elastic piece, so that the first central channel is communicated with the second central channel;

the inner side wall of the second end of the first central channel extends towards the center of the first central channel to form a first wall, the first wall extends towards the first baffle ring to form a second wall, the inner side wall of the first central channel, the first wall and the second wall form a first groove, and a first plugging ring is arranged in the first groove; the first plugging ring comprises a first fixing part and a first plugging part which are connected, the first fixing part is accommodated in the first groove, and a first plugging inclined plane is formed on the first plugging part; the first plug is provided with a first matching inclined plane matched with the first plugging inclined plane;

the inner side wall of the second central channel extends towards the center of the second central channel to form a third wall, the third wall extends towards the second retaining ring to form a fourth wall, a second groove is formed by the inner side wall of the second central channel, the third wall and the fourth wall, and a second sealing ring is arranged in the second groove; the second plugging ring comprises a second fixing part and a second plugging part which are connected, the second fixing part is contained in the second groove, and a second plugging inclined plane is formed on the second plugging part; the second plug is provided with a second matching inclined plane matched with the second plugging inclined plane.

2. The connector assembly of claim 1, wherein the first plug includes a first plugging plate and an abutment head, the first plugging plate defining the first mating ramp, a first end of the abutment head fixedly coupled to the first plugging plate, and a second end of the abutment head extending out of the first central passage for abutment with the second plug.

3. The connector assembly of claim 2, wherein the first plug further comprises a first post fixedly connected to the first closure plate;

the inner side wall of the first central channel is provided with a first matching groove matched with the first column body.

4. The connector assembly of claim 1, wherein the second plug includes a second blocking plate and a second post fixedly connected to the second blocking plate, the second blocking plate defining the second mating ramp;

and a second matching groove matched with the second cylinder is formed on the inner side wall of the second central channel.

5. The connector assembly of any of claims 1-4, further comprising a snap spring that snap-fits the first body and the second body;

a first sealing ring is arranged between the first body and the second body.

6. The fitting assembly of any of claims 1-4, wherein the first resilient member is identical to the second resilient member.

7. A charging kit comprising a power supply device, a device to be charged, and the connector assembly of any one of claims 1-6;

the power supply equipment is provided with a cooling device, and the cooling device is provided with a cooling liquid circulation pipeline;

the device to be charged comprises a cooling pipeline;

the first joint of the joint assembly is connected with the coolant circulation pipe, and the second joint of the joint assembly is connected with the cooling pipe.