Cooling plug-in structure and charging connector

Abstract

The utility model discloses a cooling plug-in structure and a charging connector. The cooling plug-in structure comprises a connecting piece and a plurality of plug-in pieces connected with the connecting piece; a first passage and a plurality of second passages communicated with the first passage are arranged in the connecting piece; an inserting part is arranged at one end of the inserting part, a first containing cavity is formed in the inserting part, a communicating hole communicating with the first containing cavity is formed in the peripheral wall of the inserting part and corresponds to the second channel, and the end, away from the inserting part, of the inserting part is connected with the second cooling pipe so that the second cooling pipe can communicate with the first containing cavity; and after flowing into the first accommodating cavities of the plug connectors from the second cooling pipe, the cooling medium flows into the second passages through the communicating holes corresponding to the first accommodating cavities and then converges into the first passages. The cooling plug-in structure can effectively reduce the temperature difference between a plurality of plug-in members and between a plurality of liquid-cooled cables, and by cooling the plug-in members, the temperature of the terminals is reduced, the service life of the terminals is prolonged, and the stability of the system is ensured at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile charging field especially, relate to a cooling plug -in structure and charging connector. BACKGROUND

[0002] With the continuous development of electric automobile market, safe and effective high -power charging gun is paid more and more attention by people. The existing high -power charging gun generates a lot of heat when charging, and with the temperature rise, the conductor current -carrying capacity reduces, and the charging efficiency is influenced. At the same time, too high temperature can bring potential safety hazard. Too high temperature is the main reason for limiting the charging power of charging gun, and the greater the charging power is, the more serious the heat is, and the greater the potential safety hazard is. But the charging power of charging gun is small, and it will lead to the problem of long charging time, the increase of user time cost, the waste of land cost of charging operator, etc. It will also affect user experience.

[0003] The existing charging gun generally adopts the mode that two liquid cooling cables enter and exit the charging terminal to cool the charging terminal. Since the cooling liquid passes through the two terminals in turn, the temperature difference of the cooling liquid flowing through the two terminals is large, and then the temperature difference of the two liquid cooling cables is large, which cannot guarantee the system stability. SUMMARY

[0004] The utility model discloses a cooling plug -in structure, including connecting piece and with connecting piece connects a plurality of plug -in parts;

[0005] The connecting piece is equipped with first passway and a plurality of second passways that communicate with the first passway;

[0006] One end of the plug -in part is equipped with the plug -in part, and the plug -in part is equipped with the first cavity, and the plug -in part is equipped with the communication hole that communicates with the first cavity on the wall, and the communication hole and the second passway are correspondingly arranged, and the end of the plug -in part away from the plug -in part is connected with the second cooling pipe, so that the second cooling pipe and the first cavity are communicated;

[0007] Among them, the cooling medium flows into the first cavity of each plug -in part from the second cooling pipe, and then flows into the second passway through the communication hole corresponding to the first cavity and merges into the first passway.

[0008] Optionally, in an embodiment of the utility model, the plug -in part still includes the installation part that is connected with the plug -in part, and the tail part that is connected with the installation part, and the first cavity is opened in the end of the tail part away from the plug -in part and extends to the direction of the plug -in part;The communication hole is arranged on the wall of the installation part;The second cooling pipe is sleeved on the outer wall of the tail part.

[0009] Optionally, in an embodiment of the utility model, the plug-in part still includes inner core, the inner core is equipped with wiring part and flow guide part, the flow guide part is equipped with second cavity, the flow guide part is equipped with flow guide hole, when the inner core inserts the first cavity, the second cooling pipe, the flow guide hole, the second cavity, the first cavity and the second passage are communicated.

[0010] Optionally, in an embodiment of the utility model, the flow guide part includes first flow guide piece, limiting portion and second flow guide piece, the first flow guide piece is connected with the wiring part, the limiting portion is located between the first flow guide piece and the second flow guide piece, the limiting portion is connected with the first cavity wall, and the first flow guide piece and the second flow guide piece are both equipped with flow guide hole.

[0011] Optionally, in an embodiment of the utility model, the connecting piece includes first connecting portion and multiple second connecting portions fixedly connected with the first connecting portion, the first passage extends along the first connecting portion in the axial direction, the second passage is arranged on the second connecting portion, the second connecting portion is annular, and the second connecting portion is sleeved on the outer wall of the mounting portion to fixedly connect the connecting piece with the plug-in part.

[0012] Optionally, in an embodiment of the utility model, the second connecting portion includes first half ring and second half ring, the first half ring is fixedly connected with the first connecting portion, and the second half ring is detachably connected with the first half ring through locking piece.

[0013] Optionally, in an embodiment of the utility model, the first half ring is provided with first recess around the second passage, and the first recess is provided with sealing ring.

[0014] Optionally, in an embodiment of the utility model, one end of the first connecting portion away from the second connecting portion is provided with first threaded hole, the first threaded hole is communicated with the first passage, the cooling plug-in structure further includes adapter pipe, one end of the adapter pipe is provided with first screw joint, the first screw joint is connected with the first threaded hole, one end of the adapter pipe away from the first screw joint is provided with adapter head, and the first cooling pipe is sleeved on the outer wall of the adapter head.

[0015] Optionally, in an embodiment of the utility model, one end of the first connecting portion away from the second connecting portion is provided with second recess around the first threaded hole, the second recess is provided with sealing ring, and abutting portion is further arranged between the first screw joint and the adapter head, and the abutting portion abuts against the sealing ring and the first connecting portion.

[0016] Optionally, in an embodiment of the utility model, the cooling plug structure further includes a first fastener, one end of the first fastener is equipped with a second threaded hole, the other end is equipped with a pressure joint part, the abutment part and the adapter between further be equipped with second screw joint, second screw joint and the second threaded hole is connected, to make the pressure joint part pressure is equipped with the first cooling pipe and the adapter connection place outer wall.

[0017] The utility model also provides a charging connector, including above -mentioned cooling plug structure.

[0018] The utility model discloses cooling plug structure, through setting up connecting piece and with connecting piece connects multiple plug pieces, and cooling medium is introduced into the first cavity in plug piece by multiple second cooling pipes simultaneously, and then is introduced into the first passageway through the intercommunication hole and the second passageway on connecting piece, to realize the discharge of cooling medium. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to be used in the embodiment or prior art description simple introduction, obviously, below description in the drawing only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to the structure shown in these drawings.

[0020] Figure 1 For the structural diagram of an embodiment of the utility model cooling plug structure;

[0021] Figure 2 For the exploded structural diagram of an embodiment of the utility model cooling plug structure;

[0022] Figure 3 For the top view of an embodiment of the utility model cooling plug structure;

[0023] Figure 4 For the sectional view of an embodiment of the utility model cooling plug structure;

[0024] Figure 5 For the sectional view of an embodiment of the utility model plug piece;

[0025] Figure 6 For the exploded structural diagram of an embodiment of the utility model connecting piece;

[0026] Figure 7 For the structural diagram of an embodiment of the utility model adapter, first fastener and first liquid cooling pipe;

[0027] Figure 8 Figure 2 is a structural schematic view of a second fastener, a second liquid cooling pipe and a conductor according to an embodiment of the present application.

[0028] Explanation of reference numerals:

[0029] 100, cooling plug-in structure; 10, connecting piece; 11, first connecting part; 111, first threaded hole; 112, second recess; 12, second connecting part; 121, first half ring; 122, second half ring; 123, first recess; 124, mounting cavity; 13, locking piece; 14, adapter pipe; 141, first screwing part; 142, abutting part; 143, second screwing part; 144, adapter head; 15, first fastener; 151, second threaded hole; 152, crimping part; 16, second fastener; 17, first passage; 18, second passage; 20, plug-in piece; 21, plug-in part; 22, mounting part; 23, tail part; 24, inner core; 241, wiring part; 242, flow guiding part; 2421, first flow guiding piece; 2422, limiting part; 2423, second flow guiding piece; 243, second cavity; 244, flow guiding hole; 25, first cavity; 251, first flow channel; 252, second flow channel; 26, communication hole; 30, first cooling pipe; 40, second cooling pipe; 50, conductor.

[0030] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0033] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, "and / or" in the full text includes three schemes, taking A and / or B as an example, including A technical scheme, B technical scheme, and A and B technical scheme; in addition, the technical schemes of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical schemes appears contradictory or unachievable, it should be considered that the combination of technical schemes does not exist, also not in the protection scope required by the utility model.

[0034] With the continuous development of the electric vehicle market, safe and effective high-power charging guns are increasingly concerned by people. The existing high-power charging gun generates a large amount of heat when charging, and as the temperature rises, the conductor current-carrying capacity decreases, affecting the charging efficiency. At the same time, too high temperature will bring safety hazards. Too high temperature is the main reason to limit the charging power of the charging gun, the greater the charging power, the more serious the heating, and the greater the safety hazard. However, the small charging power of the charging gun will lead to long charging time, increase the time cost of users, waste the land cost of charging operators, and also affect the user experience.

[0035] The existing charging gun generally uses two liquid cooling cables to enter and exit the charging terminal to cool the charging terminal. Since the cooling liquid passes through the two terminals in turn, the cooling liquid temperature difference between the two terminals is large, which in turn leads to a large temperature difference between the two liquid cooling cables, and the system stability cannot be guaranteed.

[0036] Therefore, the utility model cooling plug-in structure 100, through setting connecting piece 10 and multiple plug-in pieces 20 connected with connecting piece 10, cooling medium is introduced into the first cavity 25 in plug-in piece 20 by multiple second cooling pipes 40 at the same time, and then introduced into the first passage 17 through the communication hole 26 and the second passage 18 on the connecting piece 10, so as to realize the discharge of cooling medium. By setting this way, the temperature difference between multiple plug-in pieces 20 and multiple liquid cooling cables is reduced, the plug-in piece 20 is cooled, the terminal temperature is reduced, the terminal life is prolonged, and the system stability is guaranteed.

[0037] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings.

[0038] As Figures 1-8As shown, the cooling plug structure 100 comprises the connecting piece 10 and a plurality of plug pieces 20 connected with the connecting piece 10; the connecting piece 10 is internally provided with the first passage 17 and a plurality of second passages 18 in communication with the first passage 17; one end of the plug piece 20 is provided with the plug part 21, the plug piece 20 is internally provided with the first cavity 25, the circumferential wall of the plug piece 20 is provided with the communication hole 26 in communication with the first cavity 25, the communication hole 26 and the second passage 18 are correspondingly arranged, one end of the plug piece 20 away from the plug part 21 is connected with the second cooling pipe 40, so that the second cooling pipe 40 and the first cavity 25 are in communication; wherein the cooling medium flows into the first cavity 25 of each plug piece 20 from the second cooling pipe 40, then flows into the second passage 18 through the communication hole 26 corresponding to the first cavity 25, and finally flows into the first passage 17.

[0039] It can be understood that the new energy automobile is provided with a charging socket. The cooling plug structure 100 is arranged in the charging connector, for example, a charging gun. One end of the cooling plug structure 100 can be plugged into the charging socket. The other end of the cooling plug structure 100 is electrically connected to the power supply device in the charging pile through the conductor 50, so that the electric energy is transmitted from the charging gun to the charging socket, and the battery in the new energy automobile can store the electric energy. The cooling plug structure 100 comprises the connecting piece 10 and a plurality of plug pieces 20 connected with the connecting piece 10. One end of the plug piece 20 is provided with the plug part 21, and the plug part 21 can be plugged into the charging socket. The plug piece 20 is internally provided with the first cavity 25, and the circumferential wall of the plug piece 20 is provided with the communication hole 26 in communication with the first cavity 25. The connecting piece 10 is internally provided with the first passage 17 and a plurality of second passages 18 in communication with the first passage 17. The communication hole 26 and the second passage 18 are correspondingly arranged. One end of the plug piece 20 away from the plug part 21 is connected with the second cooling pipe 40, so that the second cooling pipe 40 and the first cavity 25 are in communication. The cooling medium can flow into the first cavity 25 of each plug piece 20 from the second cooling pipe 40, then flow into the second passage 18 through the communication hole 26 corresponding to the first cavity 25, and finally flow into the first passage 17. Since the cooling medium flows into the plug piece 20 connected with each second cooling pipe 40 at the same time, the cooling medium flowing through each plug piece 20 is ensured to maintain the same temperature, the temperature difference between the plurality of plug pieces 20 and the plurality of liquid cooling cables is reduced, and the system stability is ensured.

[0040] Further, in an embodiment of the utility model, the plug piece 20 further comprises the mounting part 22 connected with the plug part 21, and the tail part 23 connected with the mounting part 22, and the first cavity 25 is arranged at one end of the tail part 23 away from the plug part 21 and extends to the plug part 21; the communication hole 26 is arranged on the circumferential wall of the mounting part 22; and the second cooling pipe 40 is sleeved on the outer wall of the tail part 23.

[0041] It can be understood that the plug-in part 20 is long axis, the plug-in part 20 has a plug-in part 21 for plugging with a charging socket, the mounting part 22 is arranged adjacent to the plug-in part 21, the tail part 23 is arranged at one end of the mounting part 22 away from the plug-in part 21, the first cavity 25 is arranged at one end of the tail part 23 away from the plug-in part 21 and extends to the plug-in part 21, so that the cooling medium in the first cavity 25 can flow into the plug-in part 21, and the cooling effect of the plug-in part 21 is improved. The communication hole 26 is arranged on the arm of the mounting part 22. The second cooling pipe 40 is sleeved on the outer wall of the tail part 23, so that the cooling medium in the second cooling pipe 40 can flow into the first cavity 25.

[0042] Further, in an embodiment of the utility model, the plug-in part 20 further includes an inner core 24, the inner core 24 is provided with a wiring part 241 and a flow guide part 242, the flow guide part 242 is internally provided with a second cavity 243, the flow guide part 242 is provided with a flow guide hole 244, when the inner core 24 is inserted into the first cavity 25, the second cooling pipe 40, the flow guide hole 244, the second cavity 243, the first cavity 25 and the second passage 18 are communicated.

[0043] It can be understood that the wiring portion 241 can be connected with the conductor 50 to transmit the electric energy from the conductor 50 to the inner core 24 and then to the plug-in portion 21. The wiring portion 241 can be connected with the conductor 50 in various ways, for example, the wiring portion 241 can be a wiring board, and the conductor 50 can be connected with the wiring board by welding. Or the wiring portion 241 can be a cylinder, and the conductor 50 can be connected with the wiring portion 241 by crimping. Preferably, when the inner core 24 is inserted into the first cavity 25 to be connected, the wiring portion 241 is located outside the tail portion 23, and when the second cooling pipe 40 is connected with the tail portion 23, the cooling medium flows from between the wiring portion 241 and the second cooling pipe 40 into the first cavity 25 to cool the wiring portion 241. By providing the second cavity 243 in the flow guide portion 242, the flow guide hole 244 is provided on the flow guide portion 242, and the flow guide hole 244 is in communication with the first cavity 25 and the second cavity 243. In this way, the cooling medium flowing from the second cooling pipe 40 enters the second cavity 243 through the flow guide hole 244, improving the flow route of the cooling medium, so that the cooling medium can immerse the wiring portion 241 and flow through the plug-in portion 21. The improved cooling circuit has a stronger cooling effect, and the risk of temperature rise during use of the high-power charging gun is greatly reduced. Preferably, the cable includes the second cooling pipe 40 and the conductor 50 provided in the second cooling pipe 40, and the second cooling pipe 40 is provided with a cooling medium. During installation of the cable, the conductor 50 is first connected with the wiring portion 241, and then the second cooling pipe 40 is sleeved on the tail portion 23 of the plug-in piece 20. In order to prevent the second cooling pipe 40 from falling off from the tail portion 23, a second fastener 16 is preferably provided, which is sleeved on the outer wall of the connection between the second cooling pipe 40 and the tail portion 23. Preferably, a gap is provided between the end of the flow guide portion 242 away from the wiring portion 241 and the first cavity 25. In this way, the cooling medium flowing into the second cavity 243 can flow into the communication hole 26 from the gap.

[0044] Preferably, in an embodiment of the utility model, the flow guide portion 242 includes a first flow guide piece 2421, a limiting portion 2422 and a second flow guide piece 2423, the first flow guide piece 2421 is connected with the wiring portion 241, and the limiting portion 2422 is located between the first flow guide piece 2421 and the second flow guide piece 2423; the limiting portion 2422 is connected with the cavity wall of the first cavity 25, and the flow guide hole 244 is provided on the first flow guide piece 2421 and the second flow guide piece 2423.

[0045] It can be understood that the diameter of the limiting portion 2422 matches the cavity wall of the first cavity 25, so that the limiting portion 2422 can be connected with the cavity wall of the first cavity 25. The limiting portion 2422 can be connected with the cavity wall of the first cavity 25 by press connection, buckle connection, threaded connection, welding and the like, which is not limited here. The limiting portion 2422 is respectively provided with a first flow guide 2421 and a second flow guide 2423 at both ends, wherein the first flow guide 2421 is connected with the wiring portion 241. The diameters of the first flow guide 2421 and the second flow guide 2423 are both smaller than the cavity wall of the first cavity 25, so that the first flow guide 2421 and the cavity wall of the first cavity 25 form a first flow channel 251, and the second flow guide 2423 and the cavity wall of the first cavity 25 form a second flow channel 252. The first flow guide 2421 and the second flow guide 2423 are both provided with flow guide holes 244. In this way, when the cooling medium flows from the second cooling pipe 40 into the first cavity 25, the cooling medium will first flow into the first flow channel 251 through the gap between the wiring portion 241 and the second cooling pipe 40, then enter the second cavity 243 through the flow guide holes 244 on the first flow guide 2421, and then flow into the second flow channel 252 in the first cavity 25 through the flow guide holes 244 on the second flow guide 2423, and then flow from the second flow channel 252 to the second passage 18 through the communication hole 26, and then flow out of the first passage 17. Preferably, the end of the second flow guide 2423 away from the wiring portion 241 has a gap with the cavity wall of the first cavity 25, so that the cooling medium flowing into the second cavity 243 can also flow into the gap, and then flow from the second flow channel 252 to the communication hole 26.

[0046] Preferably, in an embodiment of the utility model, the connecting piece 10 includes a first connecting portion 11 and a plurality of second connecting portions 12 fixedly connected with the first connecting portion 11, the first passage 17 extends axially along the first connecting portion 11, the second passage 18 is arranged on the second connecting portion 12, the second connecting portion 12 is annular, and the second connecting portion 12 is sleeved on the outer wall of the mounting portion 22 to fixedly connect the connecting piece 10 and the plug-in piece 20.

[0047] It can be understood that the first connecting part 11 is long axis, wherein the first connecting part 11 is provided with the first passage 17. One end of the first passage 17 is connected with the first cooling pipe 30, and the other end of the first passage 17 is connected with a plurality of second connecting parts 12. The number of the second connecting parts 12 matches the number of the plug-in parts 20, and each plug-in part 20 is sleeved with a second connecting part 12. The second connecting part 12 is provided with the second passage 18, one end of each second passage 18 is communicated with the first passage 17, and the other end is communicated with the communication hole 26 on the plug-in part 20. By arranging the second connecting part 12 in a ring shape, the second connecting part 12 is provided with the mounting cavity 124 in the middle, the plug-in part 20 is arranged in the mounting cavity 124, and the second connecting part 12 is sleeved with the outer wall of the mounting part 22, so that the second connecting part 10 and the plug-in part 20 are in close contact, thereby ensuring that the communication hole 26 and the second passage 18 arranged correspondingly are in close communication without gap. The second connecting part 12 can be integrally formed with the first connecting part 11, or can be arranged in a detachable manner, which is not limited here.

[0048] Preferably, in an embodiment of the utility model, the second connecting part 12 includes the first half ring 121 and the second half ring 122, the first half ring 121 is fixedly connected with the first connecting part 11, and the second half ring 122 is detachably connected with the first half ring 121 through the locking part 13.

[0049] It can be understood that the first half ring 121 and the second half ring 122 jointly enclose the mounting cavity 124, by arranging the second connecting part 12 in the form of a detachable half ring, the detachable connection between the plug-in part 20 and the second connecting part 12 is realized, and the plug-in part 20 and the connecting part 10 are convenient to disassemble and replace. Preferably, the first half ring 121 is integrally formed with the first connecting part 11.

[0050] Preferably, in an embodiment of the utility model, the first half ring 121 is provided with the first recess 123 around the second passage 18, and the first recess 123 is provided with the sealing ring.

[0051] It can be understood that by arranging the first recess 123 around the second passage 18 in the first half ring 121, and arranging the sealing ring in the first recess 123, when the plug-in part 20 abuts against the first half ring 121, the sealing ring is arranged around the connection between the first passage 17 and the communication hole 26, thereby improving the sealing property of the connection between the plug-in part 20 and the second connecting part 12, and preventing liquid leakage.

[0052] Preferably, in an embodiment of the utility model, one end of first connecting part 11 away from second connecting part 12 is equipped with first threaded hole 111, first threaded hole 111 and first passageway 17 are communicated, cooling plug -in structure 100 still includes adapter pipe 14, one end of adapter pipe 14 is equipped with first screw joint 141, first screw joint 141 is connected with first threaded hole 111, one end of adapter pipe 14 away from first screw joint 141 is equipped with adapter head 144, and first cooling pipe 30 is sleeved on the outer wall of adapter head 144.

[0053] Understandably, cooling plug -in structure 100 still includes adapter pipe 14, one end of adapter pipe 14 is equipped with first screw joint 141, one end of first connecting part 11 away from second connecting part 12 is equipped with first threaded hole 111, first screw joint 141 is connected with first threaded hole 111, to make the cooling medium in first passageway 17 flow into adapter pipe 14 from first connecting part 11.Another end of adapter pipe 14 is equipped with adapter head 144, and first cooling pipe 30 is sleeved on the outer wall of adapter head 144 to communicate first cooling pipe 30 and adapter pipe 14.

[0054] Preferably, in an embodiment of the utility model, one end of first connecting part 11 away from second connecting part 12 is equipped with second recess 112 around first threaded hole 111, and sealing ring is arranged in second recess 112;First screw joint 141 and adapter head 144 are further equipped with abutting part 142, and abutting part 142 is in abutment with sealing ring and first connecting part 11.

[0055] Understandably, one end of first connecting part 11 away from second connecting part 12 is equipped with second recess 112 around first threaded hole 111, and sealing ring is arranged in second recess 112, when abutting part 142 and first connecting part 11 are in abutment, sealing ring is arranged around the connecting place of first threaded hole 111 and adapter pipe 14, improve the sealing property of the connection between adapter pipe 14 and first connecting part 11, prevent liquid leakage.

[0056] Preferably, in an embodiment of the utility model, cooling plug -in structure 100 still includes first fastener 15, one end of first fastener 15 is equipped with second threaded hole 151, and the other end is equipped with pressure joint 152;Abutting part 142 and adapter head 144 are further equipped with second screw joint 143, second screw joint 143 is connected with second threaded hole 151, to make pressure joint 152 press and be equipped with the outer wall of the connecting place of first cooling pipe 30 and adapter head 144.

[0057] It can be understood that after the first cooling pipe 30 is sleeved on the outer wall of the adapter 144, the first cooling pipe 30 can be detached from the adapter 144, by arranging the second screw part 143 between the abutting part 142 and the adapter 144, when the second threaded hole 151 of the first fastener 15 and the second screw part 143 are screwed, the pressing part 152 of the first fastener 15 can press on the outer wall of the connecting part of the first cooling pipe 30 and the adapter 144, by the pressure of the pressing part 152, the first cooling pipe 30 and the adapter 144 are prevented from being detached.

[0058] The utility model also provides a charging connector, the charging connector includes above-mentioned cooling plug joint. The specific structure of cooling plug joint of the application refers to the above-mentioned embodiment, because the cooling plug joint adopts all the technical schemes of all the above-mentioned embodiments, therefore has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment at least, does not repeat here.

[0059] The above-mentioned is only optional embodiment of the utility model, and does not limit the patent range of the utility model, and all equivalent structure transformations made by using the utility model specification and the attached drawing contents under the concept of the utility model or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

[0060] The above-mentioned is only optional embodiment of the utility model, and does not limit the patent range of the utility model, and all equivalent structure transformations made by using the utility model specification and the attached drawing contents under the concept of the utility model or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A cooling plug-in structure (100), characterized in that The utility model relates to a connecting piece (10) and a plurality of plug-in pieces (20) connected with the connecting piece (10). The connecting piece (10) is provided with a first passage (17) and a plurality of second passages (18) in communication with the first passage (17). One end of the plug-in piece (20) is provided with a plug-in part (21), the plug-in piece (20) is provided with a first cavity (25) therein, a communication hole (26) in communication with the first cavity (25) is arranged on the peripheral wall of the plug-in piece (20), the communication hole (26) and the second passage (18) are correspondingly arranged, and a second cooling pipe (40) is connected to the end of the plug-in piece (20) away from the plug-in part (21) so that the second cooling pipe (40) and the first cavity (25) are in communication. The cooling medium flows from the second cooling pipe (40) into the first cavity (25) of each plug-in piece (20), then flows into the second passage (18) through the communication hole (26) corresponding to the first cavity (25), and finally flows into the first passage (17).

2. A cooling plug-in structure (100) as claimed in claim 1, characterized in that The plug-in piece (20) further comprises a mounting part (22) connected with the plug-in part (21), a tail part (23) connected with the mounting part (22), the first cavity (25) is arranged at the end of the tail part (23) away from the plug-in part (21) and extends towards the plug-in part (21), the communication hole (26) is arranged on the peripheral wall of the mounting part (22), and the second cooling pipe (40) is sleeved on the outer wall of the tail part (23).

3. A cooling plug-in structure (100) according to claim 2, characterized in that The plug-in piece (20) further comprises an inner core (24) provided with a wiring part (241) and a flow guide part (242), the flow guide part (242) is provided with a second cavity (243) therein, and the flow guide part (242) is provided with a flow guide hole (244), when the inner core (24) is inserted into the first cavity (25), the second cooling pipe (40), the flow guide hole (244), the second cavity (243), the first cavity (25) and the second passage (18) are in communication.

4. A cooling plug-in structure (100) according to claim 3, characterized in that The flow guide part (242) comprises a first flow guide piece (2421), a limiting part (2422) and a second flow guide piece (2423), the first flow guide piece (2421) is connected with the wiring part (241), the limiting part (2422) is located between the first flow guide piece (2421) and the second flow guide piece (2423), the limiting part (2422) is connected with the cavity wall of the first cavity (25), and the flow guide hole (244) is arranged on the first flow guide piece (2421) and the second flow guide piece (2423).

5. A cooling plug-in structure (100) according to claim 2, characterized in that The connecting piece (10) comprises a first connecting part (11) and a plurality of second connecting parts (12) fixedly connected with the first connecting part (11), the first channel (17) extends axially along the first connecting part (11), the second channel (18) is arranged on the second connecting part (12), the second connecting part (12) is annular, and the second connecting part (12) is sleeved on the outer wall of the mounting part (22) to fixedly connect the connecting piece (10) and the plug-in piece (20).

6. A cooling plug-in structure (100) according to claim 5, characterized in that The second connecting part (12) comprises a first half ring (121) and a second half ring (122), the first half ring (121) is fixedly connected with the first connecting part (11), and the second half ring (122) is detachably connected with the first half ring (121) through a locking piece (13).

7. A cooled connector structure (100) as claimed in claim 6, characterized in that The first half ring (121) surrounds the second channel (18) and is provided with a first recess (123), and a sealing ring is arranged in the first recess (123).

8. A cooling plug-in structure (100) according to claim 5, characterized in that One end of the first connecting part (11) away from the second connecting part (12) is provided with a first threaded hole (111), the first threaded hole (111) is in communication with the first channel (17), the cooling plug-in structure (100) further comprises an adapter pipe (14), one end of the adapter pipe (14) is provided with a first screw part (141), the first screw part (141) is connected with the first threaded hole (111), one end of the adapter pipe (14) away from the first screw part (141) is provided with an adapter head (144), and a first cooling pipe (30) is sleeved on the outer wall of the adapter head (144).

9. A cooling plug-in structure (100) according to claim 8, characterized in that One end of the first connecting part (11) away from the second connecting part (12) is provided with a second recess (112) surrounding the first threaded hole (111), and a sealing ring is arranged in the second recess (112); a butt part (142) is further arranged between the first screw part (141) and the adapter head (144), and the butt part (142) abuts against the sealing ring and the first connecting part (11).

10. A cooling plug-in structure (100) according to claim 9, characterized in that The cooling plug-in structure (100) further comprises a first fastener (15), one end of the first fastener (15) is provided with a second threaded hole (151), the other end is provided with a pressing part (152), a second screw part (143) is further arranged between the butt part (142) and the adapter head (144), the second screw part (143) is connected with the second threaded hole (151), so that the pressing part (152) is pressed on the outer wall of the connection between the first cooling pipe (30) and the adapter head (144).

11. A charging connector, characterized by The cooling plug-in structure (100) comprises the first connecting part (11) and the plurality of second connecting parts (12) fixedly connected with the first connecting part (11).

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