On-board chargers and vehicles

Abstract

This utility model discloses an on-board charger and a vehicle, relating to the field of heat dissipation technology. The on-board charger includes a housing, a heat dissipation module, and a water nozzle module. The housing has a mounting cavity, and the heat dissipation module is installed in the housing and located within the mounting cavity, having a heat dissipation channel and an inlet and an outlet connected through the heat dissipation channel. The water nozzle module is installed in the housing and includes two water nozzle structures. Each water nozzle structure has a flow channel and a first port and a second port connected through the flow channel. The two first ports are respectively connected to the inlet and the outlet, so that the flow channel and the heat dissipation channel are connected. The end of the flow channel and the heat dissipation channel facing the second port is located outside the mounting cavity to prevent coolant leakage into the mounting cavity. The technical solution provided by this utility model avoids short circuits in electronic components caused by coolant leakage in the on-board charger, improving the safety of the on-board charger.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and in particular to an on-board charger and a vehicle. Background Technology

[0002] Existing on-board chargers generate a significant amount of heat during the charging process. To ensure normal operation, a liquid cooling system is typically installed within the charger to dissipate heat from the electronic components. This liquid cooling system consists of sealed water channels for coolant circulation and nozzles for coolant to enter and exit these channels. The sealed water channels are located within the charger's housing, and the nozzles are connected to them. The airtightness of the liquid cooling system directly impacts the on-board charger's safety during operation.

[0003] Currently, the sealing design of liquid cooling heat dissipation devices typically involves machining two water nozzles on the outside of the on-board charger's housing. These nozzles extend or connect to the inside of the housing, where water channels are installed. The nozzles and water channels are then sealed with sealing rings. Alternatively, the water channels can be divided into a water channel cavity and a water channel cover. The water channel cavity and the on-board charger's housing are integrally die-cast, and the water channel cover is welded to the water channel cavity to form a sealed water channel. The water channels and nozzles are then sealed with sealing rings.

[0004] However, when the aforementioned sealing ring fails, coolant will flow into the interior of the on-board charger through the gap between the water channel and the water nozzle, causing the internal electronic components to short-circuit and burn out. Utility Model Content

[0005] The main purpose of this invention is to provide an on-board charger and vehicle, which aims to avoid short circuits in electronic components caused by coolant leakage in the on-board charger and improve the safety of the on-board charger.

[0006] To achieve the above objectives, the on-board charger proposed in this utility model includes:

[0007] The housing has a mounting cavity for mounting electronic components.

[0008] A heat dissipation module, installed in the housing and located within the mounting cavity, is used to dissipate heat from electronic components. The heat dissipation module has a heat dissipation channel and an inlet and an outlet connected through the heat dissipation channel.

[0009] A water tap module is installed in the housing. The water tap module includes two water tap structures. Each water tap structure has a flow channel and a first port and a second port connected through the flow channel. The two first ports are respectively connected to the liquid inlet and the liquid outlet so that the flow channel and the heat dissipation channel are connected. The two second ports are both located outside the mounting cavity.

[0010] The end of the connection between the flow channel and the heat dissipation channel facing the second port is located outside the mounting cavity to prevent coolant from leaking into the mounting cavity.

[0011] In one embodiment, the heat dissipation module is provided with an extended boss at both the liquid inlet and the liquid outlet, and the housing is provided with two corresponding boss holes;

[0012] The two first ports extend into the liquid inlet and the liquid outlet respectively, and the two extended bosses pass through the two boss holes respectively, with the free ends of the extended bosses protruding from the boss holes.

[0013] In one embodiment, a first sealant is provided between the outer peripheral wall of the extended boss and the boss hole.

[0014] In one embodiment, the housing is provided with two isolation grooves, and the two boss holes are respectively located in the two isolation grooves. The free end of the groove sidewall of the isolation groove is used to abut against the heat dissipation module. Furthermore, along the radial direction of the isolation groove, a second sealant is provided between the opposite sides of the groove sidewall of the isolation groove and the heat dissipation module.

[0015] In one embodiment, the height of the isolation groove ranges from 0.2 mm to 1.0 mm.

[0016] In one embodiment, the faucet structure has at least two spaced sealing ribs on the outer peripheral wall of the first port, the sealing ribs being used to abut against the inner walls of the inlet and the outlet.

[0017] In one embodiment, a sealing ring is sandwiched between adjacent sealing ribs.

[0018] In one embodiment, the heat dissipation module is detachably connected to the housing; and / or, the water tap module is detachably connected to the housing.

[0019] In one embodiment, when the heat dissipation module is detachably connected to the housing, the heat dissipation module and the housing are connected by a first screw fastening structure; when the water tap module is detachably connected to the housing, the water tap module and the housing are connected by a second screw fastening structure.

[0020] This utility model also proposes a vehicle including the aforementioned on-board charger.

[0021] This utility model's technical solution involves incorporating a housing, a heat dissipation module, and a coolant nozzle module within an on-board charger. The housing has a mounting cavity for electronic components. The heat dissipation module, installed within the housing and located inside the mounting cavity, dissipates heat from the electronic components. The heat dissipation module includes a heat dissipation channel and an inlet and an outlet connected through this channel. The coolant nozzle module, installed within the housing, comprises two nozzle structures. Each nozzle structure has a flow channel and a first port and a second port connected through this flow channel. The two first ports are respectively connected to the inlet and outlet, allowing the flow channel and the heat dissipation channel to communicate. Both second ports are located outside the mounting cavity. The end of the flow channel facing the heat dissipation channel at the connection point is located outside the mounting cavity to prevent coolant leakage into the mounting cavity. In contrast to existing technologies where the connection between the flow channel and the heat dissipation channel is located inside the mounting cavity, this invention places the end of the connection between the flow channel and the heat dissipation channel facing the second port outside the mounting cavity. Thus, when coolant leakage occurs and coolant flows outward from the connection between the flow channel and the heat dissipation channel, the coolant will flow out of the mounting cavity, thereby preventing short circuits and burnouts of electronic components inside the mounting cavity caused by the coolant, and thus improving the safety of the on-board charger. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the on-board charger provided by this utility model;

[0024] Figure 2 for Figure 1 A cross-sectional view of an embodiment of an on-board charger;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure of a heat dissipation module in one embodiment;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of one embodiment of the box;

[0027] Figure 5 for Figure 1 A schematic diagram of one embodiment of the water tap structure.

[0028] Explanation of icon numbers:

[0029] 100. Housing; 110. Mounting cavity; 120. Boss hole; 130. Isolation groove; 141. First sealant; 142. Second sealant; 150. First screw fastening structure; 151. First mounting hole; 152. First connecting hole; 160. Second screw fastening structure; 161. Second mounting hole; 162. Second connecting hole;

[0030] 200. Heat dissipation module; 210. Heat dissipation channel; 221. Liquid inlet; 222. Liquid outlet; 230. Extended boss;

[0031] 300, Water tap module; 301, Water tap structure; 310, Flow channel; 320, First port; 321, Sealing rib; 322, Sealing ring; 330, Second port.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Existing on-board chargers generate a significant amount of heat during the charging process. To ensure normal operation, a liquid cooling system is typically installed within the charger to dissipate heat from the electronic components. This liquid cooling system consists of sealed water channels for coolant circulation and nozzles for coolant to enter and exit these channels. The sealed water channels are located within the charger's housing, and the nozzles are connected to them. The airtightness of the liquid cooling system directly impacts the on-board charger's safety during operation.

[0037] Currently, the sealing design of liquid cooling heat dissipation devices typically involves machining two water nozzles on the outside of the on-board charger's housing. These nozzles extend or connect to the inside of the housing, where water channels are installed. The nozzles and water channels are then sealed with sealing rings. Alternatively, the water channels can be divided into a water channel cavity and a water channel cover. The water channel cavity and the on-board charger's housing are integrally die-cast, and the water channel cover is welded to the water channel cavity to form a sealed water channel. The water channels and nozzles are then sealed with sealing rings.

[0038] However, when the aforementioned sealing ring fails, coolant will flow into the interior of the on-board charger through the gap between the water channel and the water nozzle, causing the internal electronic components to short-circuit and burn out.

[0039] This utility model proposes an on-board charger.

[0040] Please see Figure 1 , Figure 3 and Figure 5 In one embodiment of this utility model, the on-board charger includes a housing 100, a heat dissipation module 200, and a water nozzle module 300. The housing 100 has a mounting cavity 110 for mounting electronic components. The heat dissipation module 200 is mounted in the housing 100 and located within the mounting cavity 110 for dissipating heat from the electronic components. The heat dissipation module 200 has a heat dissipation channel 210 and an inlet 221 and an outlet 222 connected through the heat dissipation channel 210. The water nozzle module 300 is installed in the housing 100. The water nozzle module 300 includes two water nozzle structures 301. Each water nozzle structure 301 has a flow channel 310 and a first port 320 and a second port 330 connected through the flow channel 310. The two first ports 320 are respectively connected to the liquid inlet 221 and the liquid outlet 222 so that the flow channel 310 and the heat dissipation channel 210 are connected. The two second ports 330 are both located outside the mounting cavity 110. The end of the flow channel 310 and the heat dissipation channel 210 facing the second port 330 is located outside the mounting cavity 110 to prevent coolant from leaking into the mounting cavity 110.

[0041] Specifically, in one embodiment, the housing 100 can be the casing of the charger. Of course, the housing 100 can also be another mounting component other than the casing of the charger. The specific shape of the housing 100 can be a cube, a cuboid, or an irregular shape. Of course, in order to ensure the stability of the housing 100 and the spatial arrangement of the heat dissipation module 200, it is best to set it as a cuboid. Of course, other possible shapes can also be used. The specific shape can be determined according to the actual situation and is not limited here.

[0042] The heat dissipation module 200 can be made of a metal material with good thermal conductivity, such as aluminum or copper. To prevent the metal heat dissipation module 200 from conducting electricity with the electronic components, an insulating material can be coated or plated on the surface of the metal material, or an insulating sheet can be placed on the surface of the metal material in thermal contact with the electronic components. Regarding the shape of the heat dissipation module 200, to maximize its heat dissipation area, it can be U-shaped, S-shaped, or other possible shapes. It is understood that the heat dissipation channel 210 extends along the extension direction of the heat dissipation module 200, making it as long as possible to improve heat exchange efficiency. Of course, the specific shape and material of the heat dissipation module 200 and the heat dissipation channel 210 can be determined according to actual conditions and are not limited here. In the solution shown in the figures of this utility model, the heat dissipation module 200 is U-shaped, and correspondingly, the heat dissipation channel 210 is also U-shaped. In one embodiment, to improve the heat dissipation effect of the electronic components, the electronic components are mounted on both sides of the heat dissipation channel 210. Understandably, the inlet 221 and outlet 222 are used for coolant to flow into and out of the heat dissipation module 200.

[0043] The water nozzle module 300 includes two water nozzle structures 301, one being an inlet water nozzle and the other an outlet water nozzle. Each water nozzle structure 301 has a connected first port 320, a flow channel 310, and a second port 330. The two water nozzle structures 301 are connected to the inlet port 221 and the outlet port 222 respectively through the two first ports 320. That is, the inlet water nozzle is connected to the inlet port 221 through its first port 320, and the outlet water nozzle is connected to the outlet port 222 through its first port 320. Understandably, to achieve heat dissipation for the electronic components within the mounting cavity 110, the heat dissipation module 200 needs to be installed within the mounting cavity 110. The water nozzle module 300 is connected to the heat dissipation module 200. The end of the water nozzle module 300 furthest from the heat dissipation module 200 is used to connect to a coolant tank or external piping to introduce and drain coolant from the heat dissipation module 200.

[0044] Thus, when the coolant flows in the on-board charger, the flow path of the coolant is: the second port 330 of the inlet nozzle - the flow channel 310 of the inlet nozzle - the first port 320 of the inlet nozzle - the inlet 221 of the heat dissipation module 200 - the heat dissipation channel 210 - the outlet 222 of the heat dissipation module 200 - the first port 320 of the outlet nozzle - the flow channel 310 of the outlet nozzle - the second port 330 of the outlet nozzle. In this way, the coolant flows in the heat dissipation module 200 and the nozzle module 300.

[0045] Understandably, most of the water tap module 300 is located outside the mounting cavity 110. Specifically, the second port 330 is located outside the mounting cavity 110, while the first port 320 may be partially located inside the mounting cavity 110. That is, the connection between the water tap module 300 and the heat dissipation module 200 is located at the boundary between the inner and outer sides of the mounting cavity 110. The flow channel 310 and the heat dissipation channel 210 are connected through the first port 320 and the liquid inlet 221 (or liquid outlet 222). In the embodiment shown in the figures of this utility model, a portion of the first port 320 extends into the liquid inlet 221 (or liquid outlet 222), thereby causing a partial overlap between the first port 320 and the liquid inlet 221 (or liquid outlet 222). Of course, in other embodiments, the liquid inlet 221 (or liquid outlet 222) may also extend into the first port 320. This is not a limitation, and the following description uses the example of the first port 320 extending into the liquid inlet 221 (or liquid outlet 222) as an example. In this invention, the end of the overlapping portion of the first port 320 and the inlet 221 (or outlet 222) near the second port 330 is located outside the mounting cavity 110. Thus, even if coolant leakage occurs, the coolant will flow out along the end of the overlapping portion of the first port 320 and the inlet 221 (or outlet 222) near the second port 330, preventing coolant leakage into the mounting cavity 110. This avoids the coolant affecting the electronic components within the mounting cavity 110, prevents short circuits in the electronic components, and improves the safety of the on-board charger.

[0046] Please see Figures 2 to 4 In an embodiment of this utility model, the heat dissipation module 200 is provided with an extended boss 230 at both the liquid inlet 221 and the liquid outlet 222. The housing 100 is provided with two corresponding boss holes 120. The two first ports 320 extend into the liquid inlet 221 and the liquid outlet 222 respectively. The extended boss 230 passes through the two boss holes 120 respectively, and the free end of the extended boss 230 is exposed from the boss hole 120.

[0047] Understandably, the on-board charger has a relative top and bottom. For ease of explanation, the top direction of the on-board charger is defined as "upper" and the bottom direction as "lower". Both the inlet 221 and outlet 222 are located below the heat dissipation module 200, allowing coolant to flow from bottom to top into the heat dissipation channel 210. This ensures that coolant can only flow into the heat dissipation channel 210 when there is a power supply. Compared to placing the inlet 221 and outlet 222 above the heat dissipation module 200, this avoids coolant flowing into the heat dissipation channel 210 under its own weight, thus preventing potential leaks caused by unintentionally causing coolant flow.

[0048] To improve the sealing of the connection between the heat dissipation module 200 and the housing 100 and prevent the possibility of coolant leakage from the connection point, the heat dissipation module 200 has an extended boss 230 at both the inlet 221 and the outlet 222, with the extended boss 230 extending downwards. Correspondingly, the housing 100 has two boss holes 120 on one side of its upper part. When assembling the on-board charger, the extended boss 230 is passed downwards through the boss holes 120, so that the outer wall of the extended boss 230 contacts the inner wall of the boss hole 120 in the circumferential direction. At the same time, the free end of the extended boss 230 protrudes from the boss hole 120. Then, the two first ports 320 of the water nozzle module 300 are respectively inserted into the inlet 221 and the outlet 222, thereby realizing the connection and communication between the housing 100, the heat dissipation module 200, and the water nozzle module 300.

[0049] In this way, the extended boss 230 passes through the boss hole 120, and the free end of the extended boss 230 protrudes from the boss hole 120. At the same time, the two first ports 320 are respectively inserted into the liquid inlet 221 and the liquid outlet 222, which further prevents the coolant from entering the mounting cavity 110 from the position between the extended boss 230 and the boss hole 120, thereby avoiding damage to electronic components by the coolant and improving the connection sealing between the heat dissipation module 200 and the housing 100.

[0050] Please see Figure 2 In an embodiment of this utility model, a first sealant 141 is provided between the outer peripheral wall of the extended boss 230 and the boss hole 120. It can be understood that, to further improve the sealing performance between the housing 100 and the heat dissipation module 200, a first sealant 141 is provided between the outer peripheral wall of the extended boss 230 and the inner wall of the boss hole 120. In one embodiment, the first sealant 141 is provided around the entire circumference of the inner wall of the boss hole 120 to further improve the sealing performance between the housing 100 and the heat dissipation module 200.

[0051] Please see Figure 2 and Figure 4In an embodiment of this utility model, the housing 100 is provided with two isolation grooves 130, and two boss holes 120 are respectively located in the two isolation grooves 130. The free end of the groove sidewall of the isolation groove 130 is used to abut against the heat dissipation module 200. Furthermore, along the radial direction of the isolation groove 130, a second sealant 142 is provided between the opposite sides of the groove sidewall of the isolation groove 130 and the heat dissipation module 200.

[0052] To improve the sealing of the mounting cavity 110 of the housing 100, an isolation groove 130 is provided on the upward-facing side of the housing 100. The isolation groove 130 extends along the height direction of the on-board charger and has a certain height. A boss hole 120 is provided in the isolation groove 130, which can be a circular ring structure, a rectangular ring structure, etc. In the embodiment shown in the figures of this utility model, the isolation groove 130 is a circular ring structure. In one embodiment, the boss hole 120 and the isolation groove 130 have the same center, which facilitates the simplification of the structure of the heat dissipation module 200 and the housing 100, and makes the assembly of the on-board charger easier. After the housing 100 and the heat dissipation module 200 are assembled, the free end of the side wall of the isolation groove 130 abuts against the heat dissipation module 200, and along the radial direction of the isolation groove 130, the side wall of the isolation groove 130 is located outside the outer extension boss 230. Furthermore, there is a certain distance between the side wall of the isolation groove 130 and the outer extension boss 230 to reserve a position for applying the second sealant 142.

[0053] Meanwhile, along the radial direction of the isolation groove 130, a second sealant 142 is provided on both the inner and outer sides of the groove sidewall of the isolation groove 130. The second sealant 142 bonds the groove sidewall of the isolation groove 130 and the heat dissipation module 200 together, thereby improving the sealing performance of the mounting cavity 110. Thus, if coolant flows into the mounting cavity 110, the coolant must pass through the obstruction of the extended boss 230, the first sealant 141 between the extended boss 230 and the boss hole 120, the second sealant 142 between the inner side of the groove sidewall of the isolation groove 130 and the heat dissipation module 200, and the second sealant 142 between the outer side of the groove sidewall of the isolation groove 130 and the heat dissipation module 200 before it can flow into the mounting cavity 110, thereby further improving the connection sealing performance between the heat dissipation module 200 and the housing 100.

[0054] In one embodiment, the height of the isolation groove 130 ranges from 0.2mm to 1.0mm. This ensures that the height of the isolation groove 130 is appropriate, guaranteeing that at least part of the extended boss 230 can be exposed from the boss hole 120, while also ensuring the application space of the second sealant 142 in the vertical direction, thus ensuring the sealing of the mounting cavity 110 and the sealing between the housing 100 and the heat dissipation module 200.

[0055] Please see Figure 5In an embodiment of this utility model, the first port 320 is located on the upper side of the water nozzle structure 301, and the connection direction of the first port 320 with the liquid inlet 221 and the liquid outlet 222 is parallel to the vertical direction of the on-board charger.

[0056] Understandably, the inlet 221 and outlet 222 of the heat dissipation module 200 are both located below the heat dissipation module 200. Correspondingly, the first port 320 is located above the water nozzle structure 301, and the connection direction of the first port 320 with the inlet 221 and outlet 222 is parallel to the vertical direction of the on-board charger. This ensures that the coolant supplied from the water nozzle structure 301 to the on-board charger flows from bottom to top. Therefore, even if the on-board charger leaks, the coolant will flow downwards under its own gravity, preventing it from entering the mounting cavity 110 and thus avoiding damage to the electronic components.

[0057] Please see Figure 5 In an embodiment of this utility model, the water tap structure 301 is provided with at least two spaced sealing ribs 321 on the outer peripheral wall of the first port 320. The sealing ribs 321 are used to abut against the inner walls of the liquid inlet 221 and the liquid outlet 222.

[0058] Understandably, when the water tap module 300 is connected to the heat dissipation module 200, at least a portion of the first port 320 needs to extend into the liquid inlet 221 or the liquid outlet 222. The portion of the first port 320 extending into the liquid inlet 221 or the liquid outlet 222 is provided with at least two spaced sealing ribs 321, which extend circumferentially along the first port 320. When the first port 320 extends into the liquid inlet 221 or the liquid outlet 222, the sealing ribs 321 abut against the inner wall of the liquid inlet 221 or the liquid outlet 222. This improves the sealing performance between the first port 320 and the liquid inlet 221 or the liquid outlet 222, thereby improving the connection sealing performance between the water tap structure 301 and the heat dissipation module 200.

[0059] Please see Figure 2 In this embodiment of the present invention, a sealing ring 322 is sandwiched between adjacent sealing ribs 321. It is understood that a sealing groove is formed between adjacent sealing ribs 321, and the sealing ring 322 is installed within the sealing groove. When the first port 320 extends into the inlet port 221 or outlet port 222, the outer wall of the sealing ring 322 abuts against the inner wall of the inlet port 221 or outlet port 222, thereby further improving the sealing performance between the first port 320 and the inlet port 221 or outlet port 222. In the scheme shown in the figures of this invention, there are two sealing ribs 321 and one sealing ring 322. Of course, the number of sealing ribs 321 and sealing rings 322 can be multiple, and this is not limited here.

[0060] Please see Figure 1 , Figure 3 and Figure 5 In embodiments of this utility model, the heat dissipation module 200 is detachably connected to the housing 100; and / or, the water tap module 300 is detachably connected to the housing 100.

[0061] Thus, the heat dissipation module 200 is divided into three independent components: a housing 100, a heat dissipation module 200, and a water nozzle module 300. The heat dissipation module 200 and the water nozzle module 300 are detachably mounted on the housing 100, respectively. After installation, the water nozzle module 300 is connected to the heat dissipation module 200, enabling a detachable connection for the on-board charger. This allows for the replacement and repair of only the faulty module when the on-board charger malfunctions, avoiding the need to discard the entire on-board charger and reducing operating costs. Furthermore, directly connecting the water nozzle module 300 to the heat dissipation module 200 eliminates the need for additional connecting components, simplifying the on-board charger's structure and contributing to its lightweight design.

[0062] Please see Figures 1 to 5 In an embodiment of this utility model, when the heat dissipation module 200 is detachably connected to the housing 100, the heat dissipation module 200 and the housing 100 are connected by a first screw fastening structure 150; when the water tap module 300 is detachably connected to the housing 100, the water tap module 300 and the housing 100 are connected by a second screw fastening structure 160.

[0063] Specifically, the first screw fastening structure 150 includes a first connecting hole 152 on the heat dissipation module 200, a first mounting hole 151 on the housing 100, and a first connector. When the heat dissipation module 200 is connected to the housing 100, the first connecting hole 152 and the first mounting hole 151 are aligned, and the first connector passes through the first connecting hole 152 and the first mounting hole 151, thereby connecting the heat dissipation module 200 and the housing 100 together. The number of first connecting holes 152 and the first mounting holes 151 are the same, and their positions are one-to-one; therefore, the number of first connecting holes 152 and the first mounting holes 151 is not limited here.

[0064] The second screw fastening structure 160 includes a second connecting hole 162 on the faucet module 300, a second mounting hole 161 on the housing 100, and a second connector. When the faucet module 300 is connected to the housing 100, the second connecting hole 162 and the second mounting hole 161 are aligned, and the second connector passes through the second connecting hole 162 and the second mounting hole 161, thereby connecting the faucet module 300 and the housing 100 together. The number of second connecting holes 162 and the second mounting holes 161 are the same, and their positions are one-to-one. No limitation is placed on the number of second connecting holes 162 and the second mounting holes 161.

[0065] The first and second connecting parts can be screws, bolts, rivets, etc., and there are no restrictions. Of course, in other embodiments, the heat dissipation module 200 and the housing 100, and the water tap module 300 and the housing 100 can also be connected by snap-fit ​​or other means.

[0066] This utility model also proposes a vehicle that includes an on-board charger. The specific structure of the on-board charger is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0067] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An on-board charger, characterized in that, include: The housing has a mounting cavity for mounting electronic components. A heat dissipation module is installed in the housing and located in the mounting cavity for dissipating heat from electronic devices. The heat dissipation module has a heat dissipation channel and an inlet and an outlet connected through the heat dissipation channel. as well as A water tap module is installed in the housing. The water tap module includes two water tap structures. Each water tap structure has a flow channel and a first port and a second port connected through the flow channel. The two first ports are respectively connected to the liquid inlet and the liquid outlet so that the flow channel and the heat dissipation channel are connected. The two second ports are both located outside the mounting cavity. The end of the connection between the flow channel and the heat dissipation channel facing the second port is located outside the mounting cavity to prevent coolant from leaking into the mounting cavity.

2. The on-board charger as described in claim 1, characterized in that, The heat dissipation module is provided with an extended boss at both the liquid inlet and the liquid outlet, and the housing is provided with two boss holes accordingly. The two first ports extend into the liquid inlet and the liquid outlet respectively, and the two extended bosses pass through the two boss holes respectively, with the free ends of the extended bosses protruding from the boss holes.

3. The on-board charger as described in claim 2, characterized in that, A first sealant is provided between the outer peripheral wall of the extension boss and the boss hole.

4. The on-board charger as described in claim 2, characterized in that, The housing is provided with two isolation grooves, and the two boss holes are respectively located in the two isolation grooves. The free end of the groove sidewall of the isolation groove is used to abut against the heat dissipation module. Furthermore, along the radial direction of the isolation groove, a second sealant is provided between the opposite sides of the groove sidewall of the isolation groove and the heat dissipation module.

5. The on-board charger as described in claim 4, characterized in that, The height of the isolation groove ranges from 0.2mm to 1.0mm.

6. The on-board charger as described in claim 1, characterized in that, The faucet structure has at least two spaced sealing ribs on the outer peripheral wall of the first port, and the sealing ribs are used to abut against the inner walls of the liquid inlet and the liquid outlet.

7. The on-board charger as described in claim 6, characterized in that, A sealing ring is sandwiched between adjacent sealing ribs.

8. The on-board charger as described in claim 1, characterized in that, The heat dissipation module is detachably connected to the housing; and / or, the water tap module is detachably connected to the housing.

9. The on-board charger as described in claim 8, characterized in that, When the heat dissipation module is detachably connected to the housing, the heat dissipation module and the housing are connected by a first screw fastening structure; when the water tap module is detachably connected to the housing, the water tap module and the housing are connected by a second screw fastening structure.

10. A vehicle, characterized in that, Includes the on-board charger as described in any one of claims 1 to 9.

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