Heat dissipation structure, charging machine and electric vehicle

Abstract

The application discloses a heat dissipation structure, a charger and an electric vehicle. The heat dissipation structure comprises a mounting body, a heat dissipation piece, an adapter and a water nozzle connecting part. The mounting body comprises a sealed cavity with a communication hole. The heat dissipation piece is arranged in the sealed cavity and has two connecting ports and a heat dissipation flow channel connecting the two connecting ports. The adapter has two external ports, two internal ports and two adapter channels. Each adapter channel connects one external port and one internal port. The adapter is arranged in the communication hole and has a first end outside the sealed cavity and a second end inside the sealed cavity. The first end of the adapter is provided with the two external ports, and the second end of the adapter is provided with the two internal ports. Each internal port is connected with a corresponding connecting port. The power device is heat-transferred and cooled by the heat dissipation piece. When the two external ports arranged outside the sealed cavity are not tightly sealed with the connection part of the external circulating water channel, the cooling liquid leaks outside the sealed cavity, so that the external cooling liquid can be isolated from the power device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat dissipation technology, in particular to a heat dissipation structure, a charging machine and an electric vehicle. BACKGROUND

[0002] In the existing vehicle-mounted charging machine, there are many power devices in the charging process, for example, the high-voltage capacitor will heat up due to the increase of voltage, the temperature of the switch tube will also rise significantly in the case of large current, and the loss of magnetic material in the high-frequency transformer and the resistance loss of the coil will also generate a large amount of heat. Therefore, in order to ensure the normal operation of the charging machine, a liquid cooling heat dissipation device is generally used to dissipate heat for the heating electronic elements. The working principle of the liquid cooling heat dissipation mode is to exchange heat between the charging machine and the cooler through circulating water or other heat-conducting medium to achieve the purpose of cooling. The internal liquid cooling module is driven by a water pump to circulate the cooling liquid for heat dissipation, and the outside is driven by a low-speed large-volume fan or an air conditioner to dissipate heat from the radiator.

[0003] Since the internal liquid cooling module needs to take away the heat of the power device through heat transfer, the power device is generally in direct contact with the heat dissipation member. However, when the sealing of the water nozzle of the cooling water channel fails, the cooling liquid will flow into the inside of the charging machine shell, which is easy to cause short circuit of the electronic elements, resulting in damage of the charging machine and existence of safety hazards. SUMMARY

[0004] The main purpose of the present application is to provide a heat dissipation structure, a charging machine and an electric vehicle, which aims to solve the above-mentioned problem that when the sealing of the water nozzle of the cooling water channel fails, the cooling liquid will flow into the inside of the charging machine, which is easy to cause short circuit of the electronic elements. The heat dissipation structure provided by the present application can isolate the cooling liquid from the internal electronic elements of the charging machine to ensure the safe operation of the charging machine.

[0005] To achieve the above-mentioned purpose, the present application provides a heat dissipation structure, which comprises:

[0006] The mounting body comprises a sealing cavity, and the cavity wall of the sealing cavity is provided with a communication hole;

[0007] The heat dissipation member is arranged in the sealing cavity and dissipates heat for the electronic elements in the sealing cavity. The heat dissipation member has two connecting ports and a heat dissipation flow channel communicating the two connecting ports;

[0008] The adapter has two outer interfaces, two inner interfaces, and two adapter channels, each of which communicates one outer interface and one inner interface, and is arranged in the communication hole to have a first end outside the sealed cavity and a second end inside the sealed cavity, the first end of the adapter is provided with the two outer interfaces, and the second end of the adapter is provided with the two inner interfaces, and each inner interface is welded with a corresponding connection port; and

[0009] The water nozzle connecting part is formed on the outer side of the mounting body and is arranged opposite to the first adapter part, and has two first interfaces, two second interfaces, and two connection channels, each of which communicates one first interface and one second interface, and each first interface is connected with a corresponding outer interface.

[0010] Optionally, the mounting body includes a shell and a cover, the shell includes a plurality of side portions and a bottom portion, the plurality of side portions and the bottom portion enclose a containing groove, and the cover is arranged at the groove opening of the containing groove to enclose the sealed cavity with the shell.

[0011] The plurality of side portions include a first side portion, the outer side of the first side portion includes the water nozzle connecting part, and the top of the first side portion is recessed with a communication groove, and the inner wall of the communication groove encloses the communication hole with the cover.

[0012] Optionally, a sealing ring is arranged between the cover and the groove opening periphery of the containing groove.

[0013] Optionally, the heat dissipation structure further includes a connecting piece, the first adapter part is provided with a first connecting hole, the water nozzle connecting part is provided with a second connecting hole corresponding to the first connecting hole, and the connecting piece is arranged in the first connecting hole and the second connecting hole to fix the adapter and the water nozzle connecting part.

[0014] Optionally, the second end of the adapter includes a second adapter part, the second adapter part is provided with the two inner interfaces, and each adapter channel penetrates and communicates the first adapter part and the second adapter part.

[0015] The heat dissipation piece is provided with the two connection ports at one end close to the second adapter part.

[0016] Optionally, the first adapter part extends along the first direction, and the second adapter part extends along a second direction intersecting the first direction.

[0017] Optionally, the adapter further comprises a curved portion in a curved arrangement, the curved portion having a first connecting end in the first direction and a second connecting end in the second direction, the first connecting end being connected with the first adapter portion, and the second connecting end being connected with the second adapter portion, each of the adapter channels being arranged in sequence through the first adapter portion, the curved portion and the second adapter portion.

[0018] The first adapter portion, the curved portion and the second adapter portion are integrally formed.

[0019] Optionally, the first adapter portion is provided with two first communication openings at one end thereof in the first direction and close to the second adapter portion, each of the first communication openings being in communication with a corresponding one of the outer interfaces;

[0020] The second adapter portion is provided with two second communication openings at one side thereof in the first direction and close to the first adapter portion, each of the second communication openings being in communication with a corresponding one of the inner interfaces;

[0021] The first adapter portion is fixedly connected with the second adapter portion, and each of the first communication openings is docked with a corresponding one of the second communication openings.

[0022] Optionally, the heat dissipation structure further comprises a sealing ring, the sealing ring being arranged between the inner wall of the communication groove and the first adapter portion.

[0023] Optionally, the side surface of the adapter portion towards the first faucet connecting portion forms a groove bottom of the communication groove, and each of the two opposite side walls of the communication groove is formed with a first inclined surface, the two first inclined surfaces being arranged away from each other along the groove depth of the communication groove towards the groove opening direction.

[0024] The side surface of the first adapter portion towards the faucet connecting portion comprises a second inclined surface matched with the two first inclined surfaces.

[0025] Optionally, the heat dissipation member has two end portions, and each of the end portions of the heat dissipation member is provided with one of the connecting openings.

[0026] The two end portions of the heat dissipation member are respectively welded to the two inner interfaces.

[0027] Optionally, the inner wall of each of the adapter channels is provided with a first mounting hole and a second mounting hole in the wall thickness direction thereof, the first mounting hole forming the outer interface, and the second mounting hole forming the inner interface.

[0028] The peripheral edge of the second mounting hole is provided with an annular protruding rib in the wall thickness direction of the adapter channel, and each of the end portions of the adapter is fixedly connected with the inner peripheral wall of the second mounting hole and the annular protruding rib.

[0029] Optionally, the heat dissipation flow channels are provided in plurality, and each of the heat dissipation flow channels is communicated with the two inner interfaces.

[0030] The application further provides a charging machine comprising the heat dissipation structure.

[0031] The application further provides an electric vehicle comprising the charging machine.

[0032] In the technical scheme provided by the application, the mounting body is formed with a sealed cavity, the heat dissipation member is arranged in the sealed cavity, the adapter is arranged in the communication hole, the first end of the adapter is located outside the sealed cavity, the second end of the adapter is located inside the sealed cavity, the adapter is fixed with the heat dissipation member, and the two inner interfaces on the second end of the adapter are respectively connected with the two connecting ports on the heat dissipation member, so that the two adapter channels and the heat dissipation flow channels can be communicated, the water nozzle connecting part is formed on the outer side of the mounting body, the water nozzle connecting part is provided with two first interfaces, two second interfaces and two connecting channels, each connecting channel is communicated with one first interface and one second interface, each first interface is connected with a corresponding outer interface, the two outer interfaces on the first end of the adapter are connected with the external circulating water circuit through the first interfaces, so that the cooling liquid can enter the adapter channel from one outer interface on the first end of the adapter, then flow through the heat dissipation flow channel, and then flow out from the other outer interface through the other adapter channel, the power device can be attached to or fixed on the heat dissipation member, and when the two outer interfaces are not tightly sealed at the connection with the external circulating water circuit, the cooling liquid leaks outside the sealed cavity, so that the external cooling liquid or water vapor can be isolated from the power device, the electronic device in the sealed cavity is prevented from being damaged due to short circuit, and the heat dissipation structure which can isolate the cooling liquid from the electronic elements in the charging machine and ensure the safe operation of the charging machine is provided. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0034] Figure 1 The exploded schematic view of the heat dissipation structure in the embodiment of the present application is shown in the figure.

[0035] Figure 2 The exploded schematic view of the heat dissipation structure in the embodiment of the present application is shown in the figure. Figure 1

[0036] ​Figure 3 for Figure 1 A three-dimensional schematic diagram of the shell inside;

[0037] Figure 4 This is a three-dimensional schematic diagram of a power device mounted on a heat dissipation structure.

[0038] Figure 5 for Figure 1 A schematic diagram of the longitudinal section of the heat dissipation structure in the middle;

[0039] Figure 6 for Figure 1 A cross-sectional schematic diagram of the heat dissipation structure in the diagram;

[0040] Figure 7 for Figure 1 A perspective view of an embodiment of the adapter in the middle;

[0041] Figure 8 for Figure 7 A partial structural cross-sectional diagram of the adapter in the middle;

[0042] Figure 9 for Figure 1 A perspective view of another embodiment of the adapter in the diagram;

[0043] Figure 10 for Figure 9 A three-dimensional schematic diagram of the first transition section in the middle;

[0044] Figure 11 for Figure 9 A three-dimensional schematic diagram of the second transition section in the middle;

[0045] Figure 12 for Figure 1 A three-dimensional schematic diagram of the adapter from another perspective;

[0046] Figure 13 for Figure 1 A three-dimensional schematic diagram of the heat dissipation components;

[0047] Figure 14 for Figure 13 A side plan view of the heat sink component;

[0048] Figure 15 for Figure 1 A plan view of the assembled heat sink and adapter components;

[0049] Figure 16 for Figure 15 Schematic diagram of the cross section of SS;

[0050] Figure 17 for Figure 16 An enlarged schematic diagram of part of the structure at point A in the middle.

[0051] Brief Description of Drawings

[0052] Reference Name Reference Name 100 Heat dissipation structure 2b Heat dissipation flow channel 1 Mounting body 3 Adapter 11 Shell 3a External interface 11a Accommodation groove 3b Internal interface 111 First side 31 First adapter 111a Communication groove 31a First communication port 1112 First inclined surface 31b First connecting hole 1111 Water nozzle connecting part 311 Second inclined surface 1111a First interface 312 Annular convex rib 1111b Second interface 32 Second adapter 1111c Connecting channel 33 Bent part 1111d Second connecting hole 3c Adapter channel 2 Heat dissipation part 200 Power device 2a Connecting port

[0053] The objectives, features and advantages of the present application will be further illustrated by the following embodiments in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below 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 of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work under the premise of the present application, belong to the protection scope of the present application.

[0055] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.

[0056] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions 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 solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0057] In the existing on-board charger, there are many power devices in the charger during the charging process. For example, the high-voltage capacitor will heat up due to the increase of voltage, the temperature of the switch tube will also rise significantly under large current, and the loss of the magnetic material in the high-frequency transformer and the resistance loss of the coil will also generate a large amount of heat. Therefore, in order to ensure the normal operation of the charger, a liquid cooling heat dissipation device is generally used to dissipate heat for the heating electronic elements. The working principle of the liquid cooling heat dissipation mode is to exchange heat between the charger and the cooler through circulating water or other heat-conducting medium to achieve the purpose of cooling. The internal liquid cooling module is driven by a water pump to circulate the cooling liquid for heat dissipation, and the outside is cooled by a low-speed large-volume fan or an air conditioner to dissipate the heat on the radiator. Since the internal liquid cooling module needs to remove the heat of the power device by heat transfer, the power device is generally in direct contact with the heat sink. However, the cooling module uses cooling liquid in the cooling flow channel as the heat dissipation medium, and the cooling liquid acts as a conductor. Once the cooling liquid leaks due to the failure of the water nozzle seal, it is easy to cause short circuit of the electronic elements, resulting in damage to the charger and safety hazards.

[0058] To solve the above problems, the present application provides a heat dissipation structure, Figures 1-17 The present application provides a heat dissipation structure.

[0059] Please refer to Figures 1-5 The heat dissipation structure 100 includes a mounting body 1, a heat dissipation member 2, an adapter 3 and a water nozzle connecting portion 1111. The mounting body 1 includes a sealed cavity, and the cavity wall of the sealed cavity is provided with a communication hole. The heat dissipation member 2 is arranged in the sealed cavity and dissipates heat for the electronic elements in the sealed cavity. The heat dissipation member 2 has two connecting ports 2a and a heat dissipation flow channel 2b communicating the two connecting ports 2a. The adapter 3 has two external interfaces 3a, two internal interfaces 3b and two adapter channels 3c. Each adapter channel 3c communicates one external interface 3a and one internal interface 3b. The adapter 3 is arranged in the communication hole to have a first end located outside the sealed cavity and a second end located in the sealed cavity. The first end of the adapter 3 includes a first adapter portion 31, and the first adapter portion 31 is provided with two external interfaces 3a. The second end of the adapter 3 is provided with two internal interfaces 3b, and each internal interface 3b is welded with a corresponding connecting port 2a. The water nozzle connecting portion 1111 is formed on the outside of the mounting body 1. The water nozzle connecting portion 1111 has two first interfaces 1111a, two second interfaces 1111b and two connecting channels 1111c. Each connecting channel 1111c communicates one first interface 1111a and one second interface 1111b. The side of the first adapter portion 31 facing the water nozzle connecting portion 1111 is provided with two external interfaces 3a, and each first interface 1111a is connected with a corresponding external interface 3a.

[0060] In this embodiment, please refer to Figure 3The installation main body 1 can be a shell of a charger, and of course, the installation main body 1 can also be another installation component other than the shell of the charger. The specific shape of the installation main body 1 can be a cube, a cuboid, or even a special-shaped structure. Of course, in general, in order to maintain the stability of the installation main body 1 and the spatial arrangement of the heat dissipation structure 100, the optimal setting can be a cuboid. Of course, other possible shapes can also be used, and the specific setting can be determined according to actual conditions, which is not limited in the embodiments of the present application.

[0061] In the present embodiment, the heat dissipation member 2 can be made of a metal material with good heat conduction performance, such as aluminum, copper, etc. In order to avoid the heat dissipation member 2 made of metal material from being conductive with the power device 200, an insulating material can be coated or plated on the surface of the metal material, or an insulating sheet can be arranged on the surface of the metal material in contact with the power device. As for the shape of the heat dissipation member 2, in order to maximize the heat dissipation area of the heat dissipation member 2, the heat dissipation member 2 can be arranged in a U shape, or an S shape, or other possible shapes. It can be understood that the heat dissipation flow channel 2b is arranged in an extending direction of the heat dissipation member 2, so that the heat dissipation flow channel 2b can be as long as possible, thereby improving the heat exchange efficiency. Of course, the specific shape and material of the heat dissipation member 2 and the heat dissipation flow channel 2b can also be determined according to actual conditions, which is not limited in the embodiments of the present application.

[0062] In the present embodiment, the adapter 3 is a water nozzle connecting part 1111 connecting the heat dissipation member 2 and the external circulating water path. In order to ensure the sealing property of the sealed cavity, the adapter 3 is arranged in a shape matching the communication hole, so that the inside of the sealed cavity is isolated from the outside. The material of the adapter 3 can also be profiled, graphene, aluminum oxide, etc. The specific shape and material of the adapter 3 can also be determined according to actual conditions, which is not limited in the embodiments of the present application.

[0063] In the present embodiment, the adapter 3 and the heat dissipation member 2 can be connected by welding, or can be fixedly connected by clamping or bonding. Preferably, the adapter 3 and the heat dissipation member 2 are profiled. In this way, the stable connection between the two can be ensured by welding, and the heat dissipation module after welding has the advantages of light weight, high strength, and strong heat dissipation capacity.

[0064] It can be understood that each inner interface 3b is welded to the corresponding connecting port 2a, and the welding method has high reliability and is not prone to liquid leakage. Of course, under the premise of ensuring the sealing, each inner interface 3b and the corresponding connecting port 2a can also be in the form of sealed connection. Of course, the first interface 1111a and the corresponding outer interface 3a can also be connected by welding or sealing connection, and the specific connection form of the first interface 1111a and the outer interface 3a is not limited in the present application. Various connection methods that ensure no leakage are also within the protection scope of the present application.

[0065] It can be understood that the two second interfaces 1111b are connected with the external circulating water path, one of the two second interfaces 1111b can be set as a water inlet, and the other second interface 1111b can be set as a water outlet, so that two connection channels 1111c are formed on the water nozzle connecting part 1111, one of the two connection channels 1111c is set as a water inlet channel, and the other is set as a water outlet channel. That is, the cooling liquid flowing into the water inlet channel flows into the heat dissipation flow channel 2b through an adapter channel 3c, and then flows into the water outlet channel through another adapter channel 3c. The cooling liquid flowing out of the water outlet is cooled by the external circulating water path, and then flows into the water inlet channel from the water inlet again. The above water path circulation is repeated.

[0066] In this way, the water nozzle connecting part 1111 is arranged on the mounting body 1 to connect the adapter part and the external circulating water path. The joint of the external circulating water path can be stably connected with the two second interfaces 1111b. When the heat dissipation part 2 and the adapter part 3 need to be disassembled, the adapter part 3 can be directly disassembled from the mounting body 1 without disassembling the joint of the external circulating water path, thereby ensuring the sealing of the circulating water path. In addition, the shape and structure of the two outer interfaces 3a can not be suitable for the joint of the external circulating water path. The two second interfaces 1111b can be connected with the external circulating water path and sealed.

[0067] In another embodiment, two adapter joints can also be arranged on the adapter part 3. One end of each adapter joint is adapted to the outer interface 3a, and the other end is set to a shape that can be adapted to the joint of the external circulating water path.

[0068] In the technical scheme, the mounting body 1 is formed with a sealed cavity, the heat dissipation piece 2 is arranged in the sealed cavity, the adapter piece 3 is arranged in the communication hole, the first end of the adapter piece 3 is located outside the sealed cavity, the second end of the adapter piece 3 is located inside the sealed cavity, the adapter piece 3 is fixed with the heat dissipation piece 2, and the two inner interfaces 3b on the second end of the adapter piece 3 are respectively connected with the two connecting interfaces 2a on the heat dissipation piece 2, so that the two adapter channels 3c and the heat dissipation flow channel 2b can be communicated, the water nozzle connecting part 1111 is formed on the outer side of the mounting body 1, the water nozzle connecting part 1111 has two first interfaces 1111a, two second interfaces 1111b and two connecting channels 1111c, each connecting channel 1111c communicates one first interface 1111a and one second interface 1111b, each first interface 1111a is connected with a corresponding outer interface 3a, and the two outer interfaces 3a on the first end of the adapter piece 3 are used for being connected with the external circulating water channel, so that the cooling liquid can enter the adapter channel 3c from one outer interface 3a on the first end of the adapter piece 3, then flow through the heat dissipation flow channel 2b, then pass through the other adapter channel 3c, and then flow out from the other outer interface 3a, the power device 200 can be attached to or fixed on the heat dissipation piece 2, when the cooling liquid flows through the heat dissipation flow channel 2b, the heat of the power device 200 can be taken away by the heat dissipation piece 2, when the two outer interfaces 3a are arranged outside the sealed cavity, when the connection between the two outer interfaces 3a and the external circulating water channel is not sealed, the cooling liquid leaks outside the sealed cavity, so that the external cooling liquid or water vapor can be isolated from the power device 200, the electronic device in the sealed cavity is prevented from being damaged due to short circuit, and the heat dissipation structure 100 can isolate the cooling liquid from the internal electronic elements of the charger, so that the charger can work safely.

[0069] In another embodiment, the heat dissipation piece 2 and the adapter piece 3 can be integrally formed as a heat dissipation module, the heat dissipation module is partially arranged in the sealed cavity and forms a heat dissipation structure, and the part of the heat dissipation module located outside the sealed cavity forms an adapter structure connected with the external circulating water channel.

[0070] Compared with the heat dissipation piece 2 and the adapter piece 3 which are separately formed and then assembled, the shape of the integrally formed heat dissipation module can be affected by the forming process, but the connection between the connecting interface 2a of the heat dissipation piece 2 and the inner interface 3b in the sealed cavity has better sealing integrity compared with the form of separate forming and then assembling.

[0071] In the embodiment, in order to facilitate the installation of the heat dissipation module and the electronic device, please refer to Figures 1-3, the installation main body 1 comprises a shell 11 and a cover (not shown in the figure), the shell 11 comprises a plurality of side portions and a bottom portion, the plurality of side portions and the bottom portion are enclosed to form a containing groove 11a, when the charger needs to be assembled, the heat dissipation member 2 and electronic devices and the like can be arranged in the containing groove 11a from the slot of the containing groove 11a, and then the cover is covered on the slot of the containing groove 11a to form a sealed cavity with the shell 11. The plurality of side portions comprise a first side portion 111, the outer side of the first side portion 111 comprises a water nozzle connecting portion 1111, the top of the first side portion 111 is recessed with a communication groove 111a, and the inner wall of the communication groove 111a is enclosed with the cover to form a communication hole. The specific form of the shell 11 and the cover is not limited in the present application.

[0072] It should be noted that, in order to facilitate the assembly of the cover and the shell 11, when the adapter 3 and the heat dissipation member 2 are installed, the top of the adapter 3 is flushly arranged with the top of the first side portion 111, that is, the height of the adapter 3 arranged in the communication groove 111a matches the groove depth of the communication groove 111a, so that when the cover is covered on the top slot of the containing groove 11a, the top of the cover can be attached to the top of the plurality of side portions, so that the installation main body 1 can form a sealed sealed cavity.

[0073] In order to ensure that the cover is covered on the slot of the containing groove, the sealing performance of the sealed cavity formed is better, a sealing ring is arranged between the cover and the slot of the containing groove, and the sealing ring is arranged between the peripheral edge of the slot of the containing groove and the cover, so as to ensure the sealing performance between the shell and the cover, and to form a sealed cavity with good sealing performance.

[0074] In the embodiment, please refer to Figures 12-17 The second end of the adapter 3 comprises a second adapter portion 32, two inner interfaces 3b are arranged on the second adapter portion 32, and each adapter channel 3c penetrates through the first adapter portion 31 and the second adapter portion 32; two connecting ports 2a are arranged on one end of the heat dissipation member 2 close to the second adapter portion 32. In this way, the two connecting ports 2a are arranged on the same end of the heat dissipation member 2, and the heat dissipation member 2 with the two connecting ports 2a on one end is respectively connected to the two inner interfaces 3b on the second adapter portion 32, so that the structure is compact and the assembly is convenient.

[0075] It can be understood that, in order to make the heat dissipation member 2 have a larger heat exchange area, the heat dissipation member 2 is preferably arranged in a structure similar to the letter U or M type, and the shapes of the two inner interfaces 3b and the two connecting ports 2a are matched, the inner interfaces 3b and the connecting ports 2a can be arranged as elongated holes extending in the second direction, the two inner interfaces 3b are arranged in parallel and side by side, and the two connecting ports 2a are correspondingly arranged in parallel and side by side.

[0076] In the embodiment, please refer to Figures 7-11, the first adapter part 31 extends along a first direction, and the second adapter part 32 extends along a second direction intersecting the first direction. It can be understood that the included angle between the first direction and the second direction can be any angle between 0° and 180°. Of course, preferably, the included angle between the first direction and the second direction is 90°, so that when the adapter part is installed in the accommodating groove 11a with the groove depth arranged in the second direction, the second adapter part 32 can be arranged as close to the side wall of the accommodating groove 11a as possible, providing more installation space for the installation of the heat dissipation member 2 and providing more accommodation space for the electronic element, and the first adapter part 31 can extend horizontally from the side of the second adapter part 32 through the communication hole to the outside of the accommodating groove 11a, avoiding interference between the cover and the first adapter part 31 when the cover is arranged at the slot opening of the accommodating groove 11a, and the overall heat dissipation structure 100 is relatively regular.

[0077] In an embodiment, referring to Figures 7-8 , the adapter 3 further comprises a curved part 33 arranged in a curved manner, the curved part 33 has a first connecting end in the first direction and a second connecting end in the second direction, the first connecting end is connected with the first adapter part 31, and the second connecting end is connected with the second adapter part 32, and each adapter channel 3c is arranged in sequence through the first adapter part 31, the curved part 33 and the second adapter part 32; the first adapter part 31, the curved part 33 and the second adapter part 32 are arranged integrally. In this way, when the adapter 3 is formed, a profile with a straight line of two adapter channels 3c extending along the length direction of the profile can be directly bent, and the part bent in the middle forms the curved part 33. This forming method is simple in process, good in sealing and integrity, and there is no liquid leakage in the middle part of the adapter 3.

[0078] In another embodiment, in order to make the volume of the adapter 3 smaller and the structure more compact, and improve the space utilization, the first adapter part 31 and the second adapter part 32 can be arranged separately as two independent parts, and then assembled. In order to facilitate assembly and enable the two adapter parts to communicate, referring to Figures 9-11At the first adapter 31, two first communication ports 31a are arranged in the first direction and close to one end of the second adapter 32, each of the first communication ports 31a is in communication with a corresponding outer port 3a; at the second adapter 32, two second communication ports (not shown in the figure) are arranged in the first direction and close to one side of the first adapter 31, each of the second communication ports is in communication with a corresponding inner port 3b; the first adapter 31 is fixedly connected with the second adapter 32, and each first communication port 31a is connected with a corresponding second communication port. In this way, when assembling, only the two first communication ports 31a and the two second communication ports of the two adapters are aligned one by one, and then the first adapter 31 and the second adapter 32 are welded. In this way, the welding method does not have excessive fillets between the first adapter 31 and the second adapter 32, and the volume of the adapter 3 can be effectively reduced.

[0079] It should be noted that the connection between each first communication port 31a and a corresponding second communication port can be by welding or by sealing connection. The specific connection form of the first communication port 31a and the second communication port is not limited in the present application, and various connection methods that ensure no leakage are also within the protection scope of the present application.

[0080] In the present embodiment, the heat dissipation structure 100 further comprises a connecting piece (not shown in the figure), please refer to Figures 2-3 The first adapter 31 is provided with a first connecting hole 31b, and the water nozzle connecting portion 1111 is provided with a second connecting hole 1111d corresponding to the first connecting hole 31b. The connecting piece is arranged in the first connecting hole 31b and the second connecting hole 1111d to fix the adapter 3 and the water nozzle connecting portion 1111.

[0081] It can be understood that the connecting piece can be a threaded piece such as a screw or a bolt, and the first connecting hole 31b can be a through hole, and the second connecting hole 1111d can be a threaded hole. The screw or bolt can be arranged in the through hole and screwed with the threaded hole. In another embodiment, the connecting piece can also be a pin, the first connecting hole 31b and the second connecting hole 1111d are both through holes, the pin is arranged in the two connecting holes, and the diameter of the pin is greater than the inner diameter of the two connecting holes, so that the pin and the two connecting holes form an interference fit. In yet another embodiment, the connecting piece can also be a rivet, which is used to fix and assemble the adapter 3 and the water nozzle connecting portion 1111 by riveting. Of course, other possible connection forms can also be used, which can be determined according to actual conditions, and the present application does not limit the specific connection form.

[0082] In the embodiment, the first connecting hole 31b and the second connecting hole 1111d are respectively provided with a plurality of holes, each first connecting hole 31b is correspondingly provided with a second connecting hole 1111d, and the connecting piece is also provided with a plurality of connecting pieces, so that the adapter 3 can be more firmly fixed with the faucet connecting part 1111.

[0083] In the embodiment, in order to improve the overall sealing performance of the charger, the heat dissipation structure 100 further comprises a sealing ring (not shown in the figure), which is arranged between the inner wall of the communication groove 111a and the first adapter part 31. The sealing ring can be an O-ring or the like. When the adapter 3 is screwed onto the object, the sealing ring deforms elastically as the adapter 3 approaches the shell 11, thereby filling and sealing the gap between the adapter 3 and the shell 11 to meet the IP level requirements of the charger. Of course, in order to ensure the sealing effect between the two, the sealing form of the sealing ring is not limited to the above, and a sealant can also be filled on the inner wall surface of the communication groove 111a. Of course, other possible sealing forms can also be used, which can be determined according to the actual situation, and the embodiment of the present application does not limit the sealing form.

[0084] In the embodiment, in order to make the sealing effect between the adapter 3 and the faucet connecting part 1111 better, please refer to Figure 1 , the side of the faucet connecting part 1111 towards the first adapter part 31 forms the groove bottom of the communication groove 111a, and the two opposite side walls of the communication groove 111a are both formed with a first inclined surface 1112, and the two first inclined surfaces 1112 are arranged away from each other along the groove depth of the communication groove 111a towards the groove opening, that is, the communication groove 111a is gradually expanded from the groove bottom to the groove opening; please refer to Figure 7 and Figure 10 , the side of the first adapter part 31 towards the faucet connecting part 1111 comprises a second inclined surface 311 matched with the two first inclined surfaces 1112. In this way, when the sealing ring is arranged on the inner wall of the communication groove 111a, during the screwing process of the adapter 3 and the faucet connecting part 1111, the adapter 3 can not only make the sealing ring adhere to the bottom wall of the communication groove 111a, but also can make the sealing ring adhere to the side wall of the communication groove 111a, so that the contact surface between the adapter 3 and the faucet connecting part 1111 can be sealed.

[0085] It can be understood that in another embodiment, one of the two opposite side walls of the communication groove 111a is provided with an inclined surface, and the first adapter part 31 is correspondingly provided with an inclined surface, which can also achieve the sealing effect similar to the above two inclined surfaces.

[0086] In the embodiment, please refer to Figure 13 and Figure 17, the heat dissipation member 2 has two ends, each end of the heat dissipation member 2 is provided with a connecting port 2a, so that when the two ends of the heat dissipation member 2 are respectively inserted into the two inner interfaces 3b, each connecting port 2a is in communication with a corresponding inner interface 3b, realizing the communication of the heat dissipation member 2 and the adapter 3, and then the abutting surfaces of the heat dissipation member 2 and the adapter 3 in mutual contact can be welded and fixed. Of course, in another embodiment, two spaced connecting columns are provided on the side of the adapter 3 facing the heat dissipation member 2, and an inner interface 3b is formed on the end face of each connecting column. When the adapter 3 and the heat dissipation member 2 are assembled, the connecting columns can also be inserted into the connecting ports 2a. Of course, the assembly form of the heat dissipation member 2 and the adapter 3 is not limited to the above examples, and those skilled in the art can also make other changes under the inspiration of the technical essence of the embodiments of the present application, as long as the functions and effects realized are the same or similar to the embodiments of the present application, they should be covered within the protection scope of the embodiments of the present application.

[0087] In the present embodiment, please refer to Figure 15 and Figure 16 , the inner wall of each adapter channel 3c is provided with a first mounting hole and a second mounting hole in the thickness direction of the wall, the first mounting hole forms an outer interface 3a, and the second mounting hole forms an inner interface 3b; it can be understood that when the end of the heat dissipation member 2 is inserted into the inner interface 3b and welded with the inner interface 3b, the outer peripheral wall of the heat dissipation member 2 is fixedly connected with the inner peripheral edge of the inner interface 3b, and the area of the connection between the adapter 3 and the outer peripheral wall of the heat dissipation member 2 depends on the wall thickness of the adapter channel 3c, the greater the thickness of the wall thickness, the greater the welding surface of the heat dissipation member 2 and the adapter 3, and the more firm the connection, but simply increasing the wall thickness of the adapter channel 3c will make the volume of the heat dissipation member 2 larger and the mass larger.

[0088] In order to ensure the firmness of the welding between the heat dissipation member 2 and the adapter 3 without increasing the volume of the heat dissipation member 2, please refer to Figure 17 , in the present embodiment, the peripheral edge of the second mounting hole is provided with an annular rib 312 in the thickness direction of the adapter channel 3c, and each end of the adapter 3 is fixedly connected with the inner peripheral wall of the second mounting hole and the annular rib 312. In this way, the local use of the rib can increase the welding area of the adapter 3 and the heat dissipation member 2 without excessively increasing the volume and mass of the heat dissipation member 2.

[0089] It can be understood that the annular rib 312 can be provided on the outer peripheral edge of the second mounting hole, or on the inner peripheral edge of the second mounting hole, of course, in order to maintain the appearance of the adapter 3, it is preferred that the annular rib 312 is provided on the inner peripheral edge of the second mounting hole.

[0090] In the embodiment, the heat dissipation flow channels 2b are provided in plurality, and each heat dissipation flow channel 2b is communicated with two connecting ports 2a. In this way, the plurality of heat dissipation flow channels 2b formed in the heat dissipation member 2, the wall thickness of each heat dissipation flow channel 2b is thin, and the plurality of heat dissipation flow channels 2b form a micro-channel structure, which not only can increase the convection exchange area and improve the heat dissipation effect, but also can increase the pressure resistance of the heat dissipation flow channels 2b, prevent the heat dissipation flow channels 2b from deforming under high pressure, and finally make the heat dissipation member 2 have the advantages of high rigidity, light weight and high heat dissipation efficiency.

[0091] The application further provides a charger, in particular a vehicle-mounted charger, which is fixedly installed on an electric vehicle and has the ability to safely and automatically charge the power battery of the electric vehicle to full capacity. The charger can dynamically adjust the charging current or voltage parameters according to the data provided by the battery management system (BMS) and perform corresponding actions to complete the charging process. The charger comprises the heat dissipation structure 100 described above, and further comprises a DC / DC converter, a high-voltage distribution box and the like. Since the charger comprises the heat dissipation structure 100, the specific structure of the heat dissipation structure 100 is referred to the above embodiments. Since the heat dissipation structure 100 of the charger adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0092] The application further provides an electric vehicle, which comprises the charger described above and further comprises a power battery pack, a vehicle body, a seat and the like. Since the electric vehicle comprises the charger, the specific structure of the charger is referred to the above embodiments. Since the charger of the electric vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0093] The above description is only the preferred embodiments of the application, and does not limit the patent scope of the application. Any equivalent structural transformation made according to the content of the specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the application is included in the patent protection scope of the application.

Claims

1. A heat dissipating structure, characterized by comprising: The application relates to a water nozzle connecting device. The device comprises a mounting body, a heat dissipation element, an adapter and a water nozzle connecting part. The mounting body comprises a cavity and a cover. The heat dissipation element is arranged in the cavity. The adapter is arranged in the connecting hole.

2. The heat dissipating structure according to claim 1, wherein The water nozzle connecting part is arranged on the outer side of the mounting body. The mounting body comprises a shell and a cover.

3. The heat dissipating structure according to claim 2, wherein The shell comprises a plurality of side parts and a bottom part.

4. The heat dissipating structure according to claim 1, wherein The cover is arranged on the opening of the accommodating groove. The side parts comprise a first side part.

5. The heat dissipating structure according to claim 4, wherein The outer side of the first side part comprises the water nozzle connecting part.

6. The heat dissipating structure according to claim 5, wherein The top of the first side part is concave. The inner wall of the connecting groove and the cover form the connecting hole.

7. The heat dissipating structure according to claim 5, wherein The cover and the opening of the accommodating groove are provided with a sealing ring. The second end of the adapter comprises a second adapter part. The two inner interfaces are arranged on the second adapter part. The adapter channel penetrates the first adapter part and the second adapter part. The two connecting interfaces are arranged on one end of the heat dissipation element close to the second adapter part. The first adapter part extends along a first direction. The second adapter part extends along a second direction intersecting the first direction. The adapter further comprises a curved part. The curved part has a first connecting end in the first direction and a second connecting end in the second direction. The first connecting end is connected with the first adapter part. The second connecting end is connected with the second adapter part. The adapter channel penetrates the first adapter part, the curved part and the second adapter part. The first adapter part, the curved part and the second adapter part are integrally formed. The first adapter part has two first connecting interfaces. The second adapter part has two second connecting interfaces. The first connecting interfaces are connected with the outer interfaces. The second connecting interfaces are connected with the inner interfaces. The first adapter is fixedly connected with the second adapter, and each first communication port is connected with a corresponding second communication port.

8. The heat dissipating structure according to claim 3, wherein The heat dissipation structure further comprises a connecting piece, the first adapter is provided with a first connecting hole, the water nozzle connecting part is provided with a second connecting hole corresponding to the first connecting hole, and the connecting piece is arranged in the first connecting hole and the second connecting hole to fix the adapter and the water nozzle connecting part.

9. The heat dissipating structure according to claim 3, wherein The heat dissipation structure further comprises a sealing ring, which is arranged between the inner wall of the communication groove and the first adapter.

10. The heat dissipating structure according to claim 9, wherein The side of the water nozzle connecting part facing the first adapter forms the groove bottom of the communication groove, the two opposite side walls of the communication groove are each provided with a first inclined surface, and the two first inclined surfaces are arranged away from each other along the groove depth of the communication groove. The side of the first adapter facing the water nozzle connecting part comprises a second inclined surface matched with the two first inclined surfaces.

11. The heat dissipating structure of claim 1, wherein The heat dissipation piece has two ends, and each end of the heat dissipation piece is provided with a connecting port; The two ends of the heat dissipation piece are respectively welded to the two inner interfaces.

12. The heat dissipating structure of claim 1, wherein, The inner wall of each adapter channel is provided with a first mounting hole and a second mounting hole along the wall thickness direction, the first mounting hole forms the outer interface, and the second mounting hole forms the inner interface; The circumferential edge of the second mounting hole is provided with an annular protruding rib along the wall thickness direction of the adapter channel, and each end of the adapter is fixedly connected with the inner wall of the second mounting hole and the annular protruding rib.

13. The heat dissipating structure of claim 1, wherein The heat dissipation flow channel is provided with a plurality of heat dissipation flow channels, and each heat dissipation flow channel is communicated with the two inner interfaces.

14. A charger characterized by comprising: The heat dissipation structure comprises the heat dissipation structure according to any one of claims 1 to 13.

15. An electric vehicle, characterized by The charging machine comprises the charging machine according to claim 14.

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