Heat dissipation device, on-vehicle charger and new energy automobile

Abstract

The utility model discloses a kind of heat sink, vehicle-mounted charger and new energy vehicle, it is related to electric power equipment technical field, wherein, this kind of heat sink includes shell, at least two groups of inlet, outlet water nozzle are provided on the shell, at least two groups of inlet, outlet water nozzle are located the different side of the shell;The shell is also provided with liquid inlet direction selection passage and liquid outlet direction selection passage, at least two groups of inlet, outlet water nozzle are all connected with the cooling module by the liquid inlet direction selection passage and the liquid outlet direction selection passage, the liquid inlet direction selection passage and the liquid outlet direction selection passage are respectively provided with the liquid inlet baffle and the liquid outlet baffle that two groups of inlet water nozzle and two groups of outlet water nozzle are separated and blocked.The technical scheme provided by the utility model can meet the installation demand of different product inlet and outlet water orientation and improve heat dissipation performance.

Description

Technical Field

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

[0002] Currently, the installation of electronic components such as inductors in on-board chargers (e.g., OBC modules, DC-DC modules) requires a significant amount of space, and these components have poor heat dissipation capabilities. During operation, these components are prone to failure due to insufficient heat dissipation. To address this issue, existing technologies incorporate liquid cooling channels within the on-board charger, mounting the inductors and other electronic components close to and thermally connected to these channels. The charger's casing has inlet and outlet ports connected to the liquid cooling channels for coolant flow. However, current on-board chargers only have one set of inlet and outlet ports, allowing only one inlet / outlet direction. This makes them incompatible with different customer requirements for inlet / outlet direction settings. Furthermore, as the power density of on-board chargers increases, current cooling solutions are insufficient to meet the heat dissipation needs of high-power-density on-board chargers. Utility Model Content

[0003] The main purpose of this utility model is to propose a heat dissipation device, an on-board charger, and a new energy vehicle, aiming to solve the problem that the inlet and outlet of existing cooling devices cannot meet the installation requirements of different products.

[0004] To achieve the above objectives, this utility model proposes a heat dissipation device, characterized in that the housing is provided with at least two sets of inlet and outlet water nozzles, the at least two sets of inlet and outlet water nozzles being located on different sides of the housing; the housing is also provided with an inlet direction selection channel and an outlet direction selection channel; wherein: The liquid inlet direction selection channel includes a first port and a second port that are interconnected. The first port is used to connect with the liquid inlet of the cooling module. The second port is located between at least two sets of water inlets and is provided with a liquid inlet baffle between each water inlet. In use, according to the requirements of the water inlet direction, the liquid inlet baffle between the second ports of the corresponding water inlet is removed so that the corresponding water inlet and the liquid inlet direction selection channel are connected to form a liquid inlet flow channel. The liquid outlet direction selection channel includes a third port and a fourth port that are interconnected. The third port is used to communicate with the liquid outlet of the cooling module. The second port is located between at least two sets of water outlets and is provided with a liquid outlet baffle between each water outlet. In use, according to the requirements of the water outlet direction, the liquid outlet baffle between the second port of the corresponding water outlet is removed so that the corresponding water outlet and the liquid outlet direction selection channel are connected to form a liquid outlet flow channel.

[0005] In one embodiment, the housing is provided with two sets of inlet and outlet nozzles, and the housing forms an installation cavity; The first water inlet and the first water outlet are installed on the outer surface of one side plate of the mounting cavity. The liquid inlet direction selection channel and the liquid outlet direction selection channel are respectively installed on the inner side of the mounting cavity at positions corresponding to the first water inlet and the first water outlet. A first liquid inlet baffle is formed between the first water inlet and the second port of the liquid inlet direction selection channel, and a first liquid outlet baffle is formed between the first water outlet and the second port of the liquid outlet direction selection channel. The second inlet and the second outlet are installed on the outer surface of the other side plate of the mounting cavity. The bottom housing of the mounting cavity has a first inlet channel connecting the second inlet and the second port of the inlet direction selection channel and a first outlet channel connecting the second outlet and the outlet direction selection channel. One end of the first inlet channel is connected to the second inlet, and a second inlet baffle is provided between the other end and the second port. One end of the outlet channel is connected to the second outlet, and a second outlet baffle is provided between the other end and the second port.

[0006] In one embodiment, the liquid inlet direction selection channel, the liquid inlet baffle, the liquid outlet direction selection channel, and the liquid outlet baffle are integrally formed with the housing.

[0007] In one embodiment, the side surface of the housing facing away from the mounting cavity is provided with a surrounding plate, a partition plate, and a cover plate. The surrounding plate is disposed on the housing and surrounds the housing to form a groove. The partition plate is disposed inside the surrounding plate to divide the groove into an inlet groove and an outlet groove. The cover plate is disposed at the opening of the groove to surround the inlet groove and the outlet groove to form the liquid inlet direction selection channel and the first liquid outlet flow channel.

[0008] This utility model proposes an on-board charger, including a cooling module and a heat dissipation device as described in the above embodiments. The cooling module is disposed inside the housing, and the liquid inlet and outlet of the cooling module can be selectively connected to any set of water inlets and outlets on the housing.

[0009] In one embodiment, the cooling module includes a first side plate, a second side plate, and a connecting plate connecting the first side plate and the second side plate, which are disposed opposite to each other. The first side plate, the second side plate, and the connecting plate are all hollow. The first side plate, the connecting plate, and the second side plate are connected in sequence to form a cooling channel. The end of the first side plate away from the connecting plate is connected to the liquid inlet direction selection channel, and the end of the second side plate away from the connecting plate is connected to the first liquid outlet channel.

[0010] In one embodiment, the cooling module further includes a connector, which is installed on the end of the first side plate and the second side plate away from the connecting plate. The connector has two conductive channels, and the first side plate and the second side plate are respectively connected to the liquid inlet direction selection channel and the first liquid outlet channel through the conductive channels.

[0011] In one embodiment, the housing includes a first housing, a second housing, and a cover stacked on top of each other. The second housing is disposed on the first housing to cover the first housing, and the cover is disposed on the side of the second housing opposite to the first housing to cover the second housing.

[0012] In one embodiment, the on-board charging further includes a power module, which includes an OBC module, a DC-DC module, and a PDU module; The OBC module and the DC-DC module are disposed in the mounting cavity of the first housing, and at least a portion of the OBC module and at least a portion of the DC-DC module are attached to the cooling module. The PDU module is disposed in the second housing. And / or, the mounting cavity is filled with thermally conductive adhesive to enable the OBC module and the DC-DC module to be thermally connected to the cooling module.

[0013] This utility model also proposes a new energy vehicle, including a heat dissipation device as described in the above embodiments or an on-board charger as described in the above embodiments.

[0014] The technical solution of this utility model is to set up a liquid inlet direction selection channel and a liquid outlet direction selection channel on the housing, and to open a first liquid outlet and a second liquid outlet on different sides of the housing in the liquid inlet direction selection channel, and to open a third liquid outlet and a fourth liquid outlet on different sides of the housing in the liquid outlet direction selection channel. This allows the vehicle charger to not only be compatible with different products for connection and use, but also to achieve the heat dissipation effect of the cooling module on the power module through the setting of the liquid inlet direction selection channel and the liquid outlet direction selection channel. Attached Figure Description

[0015] 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.

[0016] Figure 1 A schematic diagram of an embodiment of the on-board charger provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the on-board charger without the second housing and cover; Figure 3 for Figure 1 A schematic diagram of the split structure of an on-board charger from one perspective; Figure 4 for Figure 1 A schematic diagram of the split structure of an on-board charger from another perspective.

[0017] Explanation of icon numbers: 1. On-board charger; 10. Housing; 10a. First housing; 10a1. Cover plate; 10a2. Enclosure plate; 10a3. Partition plate; 10a4. Water inlet tank; 10a5. Water outlet tank; 10b. Second housing; 10c. Cover; 11. Liquid inlet direction selection channel; 11a. First water inlet; 11b. Second water inlet; 12. Liquid outlet direction selection channel; 12a. First water outlet; 12b. Second water outlet; 20. Cooling module; 20a. Cooling channel; 21. First side plate; 22. Connecting plate; 23. Second side plate; 24. Connector.

[0018] 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

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Currently, the installation of electronic components such as inductors in on-board chargers (e.g., OBC modules, DC-DC modules) requires a significant amount of space, and their heat dissipation capabilities are poor. During operation, these components are prone to failure due to insufficient heat dissipation. To address this issue, existing technologies incorporate liquid cooling channels within the on-board charger, mounting the inductors and other electronic components close to and thermally connected to these channels. The charger's casing features inlet and outlet ports that communicate with the liquid cooling channels for coolant flow. However, current on-board chargers only have one set of inlet and outlet ports, allowing for only one type of inlet / outlet direction, making them incompatible with different customer requirements for inlet / outlet orientation.

[0023] To address the aforementioned technical problems, a heat dissipation device is proposed, comprising a housing and at least two sets of inlet and outlet water nozzles.

[0024] Please see Figures 1 to 4In one embodiment of this utility model, the housing 10 is provided with at least two sets of inlet and outlet water nozzles, which are located on different sides of the housing 10. The housing 10 is also provided with an inlet direction selection channel 11 and an outlet direction selection channel 12. The inlet direction selection channel 11 includes a first port and a second port that are interconnected. The first port is used to communicate with the inlet of the cooling module 20, and the second port is located between the at least two sets of water nozzles. An inlet baffle is provided between the second port and each water nozzle. During use, the corresponding water inlet can be canceled according to the requirements of the water inlet direction. A liquid inlet baffle is provided between the second ports of the nozzles to connect the corresponding water inlet nozzles and the liquid inlet direction selection channel 11, forming a liquid inlet flow channel; the liquid outlet direction selection channel 12 includes a third port and a fourth port that are interconnected. The third port is used to connect with the liquid outlet of the cooling module 20. The second port is located between at least two sets of water outlet nozzles, and a liquid outlet baffle is provided between each water outlet nozzle. In use, according to the requirements of the water outlet direction, the liquid outlet baffle between the second ports of the corresponding water outlet nozzles is removed so that the corresponding water outlet nozzles and the liquid outlet direction selection channel 12 are connected to form a liquid outlet flow channel.

[0025] The number of inlet and outlet nozzles can be three or four sets, depending on actual needs. The following description assumes two sets of inlet and outlet nozzles. In this embodiment, the two sets of inlet and outlet nozzles are located on different sides of the housing 10. Assuming the housing 10 is a rectangular structure, one set of inlet and outlet nozzles is located on one side of the housing 10, and the other set is located on the other side of the housing 10, or on a side adjacent to one side of the housing 10. The specific location of the inlet and outlet nozzles can be determined according to the actual situation, and no further restrictions are imposed.

[0026] In one embodiment, the two sets of inlet and outlet nozzles are a first inlet nozzle 11a and a first outlet nozzle 12a, and a second inlet nozzle 11b and a second outlet nozzle 12b, respectively. Since the first inlet nozzle 11a and the second inlet nozzle 11b are respectively connected to the second port of the liquid inlet direction selection channel 11, but generally only one of the first inlet nozzle 11a and the second inlet nozzle 11b is used, in this embodiment, liquid inlet baffles are respectively provided at the connection points between the first inlet nozzle 11a and the second inlet nozzle 11b and the second port of the liquid inlet direction selection channel 11. Assuming that the first inlet nozzle 11a is used to supply coolant to the cooling module 20, the liquid inlet baffle between the first inlet nozzle 11a and the liquid inlet direction selection channel 11 can be removed, so that the first inlet nozzle 11a and the liquid inlet direction selection channel 11 are connected to form an inlet flow channel. Of course, when using the second inlet nozzle... When the water nozzle 11b supplies coolant to the cooling module 20, the inlet baffle of the second water inlet nozzle 11b and the inlet direction selection channel 11 can be removed. In this way, the same inlet flow channel as described above can be formed. The first water outlet nozzle 12a and the second water outlet nozzle 12b and the outlet direction selection channel 12 are set in the same way as the first water inlet nozzle 11a and the second water inlet nozzle 11b and the inlet direction selection channel 11 described above. That is, the first water outlet nozzle 12a and the second water outlet nozzle 12b are respectively connected to the outlet direction selection channel 12. However, the first water outlet nozzle 12a and the second water outlet nozzle 12b and the outlet direction selection channel 12 are respectively provided with outlet baffles. In use, according to the requirements of the water outlet direction, the outlet baffle between the corresponding water outlet nozzle and the second port can be removed so that the corresponding water outlet nozzle and the outlet direction selection channel 12 are connected to form an outlet flow channel.

[0027] In one embodiment, such as Figure 2As shown, the housing 10 is provided with two sets of inlet and outlet nozzles, and the housing 10 forms an installation cavity; the first inlet nozzle 11a and the first outlet nozzle 12a are installed on the outer surface of one side plate of the installation cavity, and the liquid inlet direction selection channel 11 and the liquid outlet direction selection channel 12 are respectively installed on the inner side of the installation cavity at the positions corresponding to the first inlet nozzle 11a and the first outlet nozzle 12a. A first liquid inlet baffle is formed between the first inlet nozzle 11a and the second port of the liquid inlet direction selection channel 11, and a first liquid outlet baffle is formed between the first outlet nozzle 12a and the second port of the liquid outlet direction selection channel 12; the second inlet nozzle 11a... Water inlet 11b and second water outlet 12b are installed on the outer surface of the other side plate of the mounting cavity. The bottom housing 10 of the mounting cavity has a first inlet channel connecting the second inlet 11b and the second port of the inlet direction selection channel 11, and a first outlet channel connecting the second outlet 12b and the outlet direction selection channel 12. One end of the first inlet channel is connected to the second inlet 11b, and a second inlet baffle is provided between the other end and the second port. One end of the outlet channel is connected to the second outlet 12b, and a second outlet baffle is provided between the other end and the second port. In this embodiment, since the second inlet nozzle 11b and the second outlet nozzle 12b are located on the outer surface of the other side plate of the housing 10, and share the inlet direction selection channel 11 and the outlet direction selection channel 12 with the first inlet nozzle 11a and the first outlet nozzle 12a to communicate with the cooling module 20, in this embodiment, a first inlet flow channel connecting the second inlet nozzle and the inlet direction selection channel 11 is also provided. This first inlet flow channel is provided on the side surface of the housing 10 facing away from the mounting cavity, that is, the bottom of the housing 10. Furthermore, a [missing information - likely a continuation of the previous sentence] is provided between the second outlet nozzle and the outlet direction suspension channel. The first liquid outlet channel is used to connect the two. This first liquid outlet channel is also set on the side surface of the housing 10 opposite to the mounting cavity. Since the first liquid inlet channel and the second liquid outlet channel are laid at the bottom of the housing 10 and located on the outer surface of the bottom of the mounting cavity, if the first liquid inlet channel and the second liquid outlet channel are used as the inlet and outlet of the cooling module 20, the first liquid inlet channel and the second liquid outlet channel can provide auxiliary heat dissipation to the bottom of the mounting cavity when put into use, so as to achieve the function of heat dissipation for the electronic components set inside the mounting cavity, thereby meeting the heat dissipation requirements of the high power density on-board charger 1.

[0028] In one embodiment, the inlet direction selection channel 11, the inlet baffle, the outlet direction selection channel 12, and the outlet baffle are integrally formed with the housing 10. In this embodiment, the inlet direction selection channel 11, the inlet baffle, the outlet direction selection channel 12, and the outlet baffle are integrally formed with the housing 10 by injection molding. The inlet baffle and the outlet baffle can be injection-molded sealing layers that can be opened by passing through when needed. Of course, in other embodiments, the inlet baffle and the outlet baffle can also be detachable sealing baffles or sealing membranes with sealing function, etc., without further limitation.

[0029] In one embodiment, the side surface of the housing 10 facing away from the mounting cavity is provided with a surrounding plate 10a2, a partition plate 10a3, and a cover plate 10a1. The surrounding plate 10a2 is disposed on the housing 10 and encloses the housing 10 to form a groove. The partition plate 10a3 is disposed inside the surrounding plate 10a2 to divide the groove into an inlet groove 10a4 and an outlet groove 10a5. The cover plate 10a1 is disposed on the groove opening of the groove to enclose the inlet groove 10a4 and the outlet groove 10a5 to form an inlet direction selection channel 11 and a first outlet flow channel. For example, Figure 4 As shown, in this embodiment, the first liquid inlet channel and the first liquid outlet channel are formed by the shell bottom of the shell 10, the surrounding plate 10a2, the partition plate 10a3, and the cover plate 10a1. For example, the surrounding plate 10a2 is provided on the side surface of the shell 10 facing away from the mounting cavity. The surrounding plate 10a2 and the shell bottom of the shell 10 form a groove. The partition plate 10a3 is provided inside the surrounding plate 10a2 or on the shell bottom of the shell 10 to divide the groove into a water inlet groove 10a4 and a water outlet groove 10a5. Then, the cover plate 10a1 is placed on the groove opening of the groove to seal the water inlet groove 10a4 and the water outlet groove 10a5 to form the first liquid inlet channel and the first liquid outlet channel. This arrangement can effectively reduce the difficulty of manufacturing the shell 10 and also improve the demolding efficiency of the shell 10 during manufacturing. Of course, in other embodiments, the first liquid inlet channel and the first liquid outlet channel may also be located inside the bottom of the housing 10. For example, a corresponding groove may be opened in the bottom of the housing 10 and the groove may be sealed to form the first liquid inlet channel and the first liquid outlet channel. No further limitations are imposed on this.

[0030] This utility model also proposes an on-board charger 1, which includes a cooling module 20 and a heat dissipation device as described in the above embodiments. The cooling module 20 is housed within the heat dissipation device housing 10, and the liquid inlet and outlet of the cooling module can be selectively connected to any set of water inlets and outlets on the housing. This on-board charger 1 is applied to new energy vehicles. It includes inductors and other electronic components for integrated installation, as well as a heat dissipation device for the cooling module 20. The heat dissipation device includes a housing 10. The inductors and other electronic components can be OBC modules and / or DC-DC modules and / or PDU modules; no further limitations are imposed on this.

[0031] In one embodiment, the cooling module 20 includes a first side plate 21, a second side plate 23 disposed opposite to each other, and a connecting plate 22 connecting the first side plate 21 and the second side plate 23. The first side plate 21, the second side plate 23, and the connecting plate 22 are all hollow. The first side plate 21, the connecting plate 22, and the second side plate 23 are sequentially connected to form a cooling channel 20a. The end of the first side plate 21 away from the connecting plate 22 is connected to the liquid inlet direction selection channel 11, and the end of the second side plate 23 away from the connecting plate 22 is connected to the liquid outlet direction selection channel 12. For example, as... Figure 2 As shown, in this embodiment, the cooling module 20 includes a first side plate 21, a second side plate 23, and a connecting plate 22 arranged opposite to each other. The first side plate 21, the second side plate 23, and the connecting plate 22 are all hollow and are connected in sequence to form a cooling channel 20a (not shown in the figure). The end of the first side plate 21 away from the connecting plate 22 is connected to the liquid inlet direction selection channel 11, and the side of the second side plate 23 away from the connecting plate 22 is connected to the liquid outlet direction selection channel 12.

[0032] It is worth mentioning that, in this embodiment, the cooling module 20 has a mounting cavity formed between the first side plate 21, the connecting plate 22, and the second side plate 23. In this embodiment, the outer surfaces of the first side plate 21, the connecting plate 22, and the second side plate 23 also form mounting cavities with the inner wall surface of the housing 10. When installing the power module, it is preferable to install the power module in the mounting cavity of the cooling module 20. In this way, the power module can achieve heat dissipation from at least three sides, such as heat dissipation from the three sides that are in contact with the first side plate 21, the second side plate 23, and the bottom of the housing, or heat dissipation from the four sides that are in contact with the first side plate 21, the second side plate 23, the connecting plate 22, and the bottom of the housing.

[0033] In another embodiment, to improve the heat dissipation effect of the cooling module 20 on the power module, thermally conductive adhesive is filled into the mounting cavity. This allows the power module, located within the mounting cavity, to be indirectly connected to the cooling module 20 via the thermally conductive adhesive. When the power module generates heat, it can be conducted to the cooling module 20 through the thermally conductive adhesive, and then the heat is carried away by the cooling module 20, achieving heat dissipation. It is worth noting that the thermally conductive component also provides encapsulation and protection for the power module.

[0034] In one embodiment, the cooling module 20 further includes a connector 24, which is mounted on the end of the first side plate 21 and the second side plate 23 away from the connecting plate 22. The connector 24 has two conductive channels, through which the first side plate 21 and the second side plate 23 are respectively connected to the liquid inlet direction selection channel 11 and the liquid outlet direction selection channel 12. For example, as shown... Figure 3 As shown, in order to improve the structural robustness of the cooling module 20, in this embodiment, a connector 24 is installed on the side of the first side plate 21 and the second side plate 23 away from the connecting plate 22. The connector 24 can improve the connection between the first side plate 21 and the second side plate 23, thereby improving the overall robustness of the cooling module 20. Secondly, in this embodiment, the connector 24 has two independent conductive channels. The first side plate 21 and the second side plate 23 can be connected to the liquid inlet direction selection channel 11 and the liquid outlet direction selection channel 12 through the conductive channels, respectively.

[0035] In one embodiment, the housing 10 includes a first housing 10a, a second housing 10b, and a cover 10c stacked together. The second housing 10b is disposed on the first housing 10a to cover the first housing 10a, and the cover 10c is disposed on the side of the second housing 10b opposite to the first housing 10a to cover the second housing 10b. For example, as... Figure 3 As shown, in this embodiment, the housing 10 includes a first housing 10a, a second housing 10b, and a cover 10c stacked together. The first housing 10a and the second housing 10b each have mounting grooves. A portion of the power module is disposed in the first housing 10a, and a portion of the power module is disposed in the second housing 10b. To provide cover protection for the portion of the power module disposed in the first housing 10a, in this embodiment, the second housing 10b is placed on top of the first housing 10a, with the base portion of the second housing 10b serving as the cover for the first housing 10a. Similarly, to provide cover protection for the portion of the power module disposed in the second housing 10b, in this embodiment, the cover 10c is placed on top of the second housing 10b. This stacked arrangement of the first housing 10a, the second housing 10b, and the cover 10c effectively improves the integration of the on-board charger 1, thereby reducing the overall size of the on-board charger 1.

[0036] In one embodiment, the on-board charger further includes a power module comprising an OBC module, a DC-DC module, and a PDU module. The OBC module and the DC-DC module are disposed within the mounting cavity of the first housing 10a, with at least a portion of the OBC module and at least a portion of the DC-DC module being bonded to the cooling module 20. The PDU module is disposed within the second housing 10b. Alternatively, the mounting cavity is filled with thermally conductive adhesive to ensure thermally conductive connection between the OBC module and the DC-DC module and the cooling module 20. Exemplarily, the power module may include an OBC module, a DC-DC module, and a PDU module (not shown in the figure). Of course, the power module may also include energy storage components and control components (not shown in the figure), without further limitation. To make efficient use of space, in this embodiment, the OBC module and DC-DC module are installed in the mounting cavity of the first housing 10a, and the PDU module is placed in the second housing 10b. To improve the heat dissipation effect of the cooling module 20 on the OBC and DC-DC modules, in this embodiment, at least a portion of the OBC and DC-DC modules abuts against the cooling module 20; for example, one side of the OBC and DC-DC modules is in close contact with the cooling module 20. This arrangement allows the OBC and DC-DC modules to dissipate heat not only through the surfaces in contact with the cooling module but also through bottom heat dissipation via the liquid inlet direction selection channel 11 and the liquid outlet direction selection channel 12 located at the bottom of the first housing 10a, thereby significantly improving the heat dissipation effect.

[0037] This utility model also proposes a new energy vehicle, which includes a heat dissipation device as described in the above embodiments or an on-board charger 1 as described in the above embodiments. The specific structure of the on-board charger 1 is as described in the above embodiments. Since this new energy 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.

[0038] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection 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 scope of protection of the present utility model.

Claims

1. A heat dissipation device, characterized in that, The system includes a housing, on which at least two sets of inlet and outlet nozzles are provided, the at least two sets of inlet and outlet nozzles being located on different sides of the housing; the housing also includes an inlet direction selection channel and an outlet direction selection channel; wherein: The liquid inlet direction selection channel includes a first port and a second port that are interconnected. The first port is used to connect with the liquid inlet of the cooling module. The second port is located between at least two sets of water inlets and is provided with a liquid inlet baffle between each water inlet. In use, according to the requirements of the water inlet direction, the liquid inlet baffle between the second ports of the corresponding water inlet is removed so that the corresponding water inlet and the liquid inlet direction selection channel are connected to form a liquid inlet flow channel. The liquid outlet direction selection channel includes a third port and a fourth port that are interconnected. The third port is used to communicate with the liquid outlet of the cooling module. The second port is located between at least two sets of water outlets and is provided with a liquid outlet baffle between each water outlet. In use, according to the requirements of the water outlet direction, the liquid outlet baffle between the second port of the corresponding water outlet is removed so that the corresponding water outlet and the liquid outlet direction selection channel are connected to form a liquid outlet flow channel.

2. The heat dissipation device as described in claim 1, characterized in that, The housing is provided with two sets of inlet and outlet nozzles, and the housing forms an installation cavity; The first water inlet and the first water outlet are installed on the outer surface of one side plate of the mounting cavity. The liquid inlet direction selection channel and the liquid outlet direction selection channel are respectively installed on the inner side of the mounting cavity at positions corresponding to the first water inlet and the first water outlet. A first liquid inlet baffle is formed between the first water inlet and the second port of the liquid inlet direction selection channel, and a first liquid outlet baffle is formed between the first water outlet and the second port of the liquid outlet direction selection channel. The second inlet and the second outlet are installed on the outer surface of the other side plate of the mounting cavity. The bottom housing of the mounting cavity has a first inlet channel connecting the second inlet and the second port of the inlet direction selection channel and a first outlet channel connecting the second outlet and the outlet direction selection channel. One end of the first inlet channel is connected to the second inlet, and a second inlet baffle is provided between the other end and the second port. One end of the outlet channel is connected to the second outlet, and a second outlet baffle is provided between the other end and the second port.

3. The heat dissipation device as described in claim 1, characterized in that, The liquid inlet direction selection channel, the liquid inlet baffle, the liquid outlet direction selection channel, and the liquid outlet baffle are integral with the housing.

4. The heat dissipation device as described in claim 2, characterized in that, The housing has a surrounding plate, a partition plate, and a cover plate on the side surface opposite to the mounting cavity. The surrounding plate is disposed on the housing and encloses the housing to form a groove. The partition plate is disposed inside the surrounding plate to divide the groove into an inlet groove and an outlet groove. The cover plate is disposed at the groove opening of the groove to enclose the inlet groove and the outlet groove to form the liquid inlet direction selection channel and the first liquid outlet flow channel.

5. An on-board charger, characterized in that, The device includes a cooling module and a heat dissipation device as described in any one of claims 1 to 4, wherein the cooling module is disposed within the housing, and the liquid inlet and liquid outlet of the cooling module can be selectively connected to any set of water inlets and water outlets on the housing.

6. The on-board charger as described in claim 5, characterized in that, The cooling module includes a first side plate, a second side plate, and a connecting plate connecting the first side plate and the second side plate, which are arranged opposite to each other. The first side plate, the second side plate, and the connecting plate are all hollow. The first side plate, the connecting plate, and the second side plate are connected in sequence to form a cooling channel. The end of the first side plate away from the connecting plate is connected to the liquid inlet direction selection channel, and the end of the second side plate away from the connecting plate is connected to the first liquid outlet channel.

7. The on-board charger as described in claim 6, characterized in that, The cooling module also includes a connector, which is installed on the end of the first side plate and the second side plate away from the connecting plate. The connector has two conductive channels, and the first side plate and the second side plate are respectively connected to the liquid inlet direction selection channel and the first liquid outlet channel through the conductive channels.

8. The on-board charger as described in claim 5, characterized in that, The housing includes a first housing, a second housing, and a cover, which are stacked together. The second housing is disposed on the first housing to cover the first housing, and the cover is disposed on the side of the second housing opposite to the first housing to cover the second housing.

9. The on-board charger as described in claim 8, characterized in that, It also includes a power module, which comprises an OBC module, a DC-DC module, and a PDU module; The OBC module and the DC-DC module are disposed in the mounting cavity of the first housing, and at least a portion of the OBC module and at least a portion of the DC-DC module are attached to the cooling module. The PDU module is disposed in the second housing. And / or, the mounting cavity is filled with thermally conductive adhesive to enable the OBC module and the DC-DC module to be thermally connected to the cooling module.

10. A new energy vehicle, characterized in that, It includes a heat dissipation device as described in any one of claims 1 to 4 or an on-board charger as described in any one of claims 5 to 9.

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