Electric device, on-board charger, and vehicle

Abstract

The utility model discloses a kind of electrical equipment, vehicle-mounted charger and vehicle, it is related to electrical equipment technical field, wherein, electrical equipment includes casing and liquid cooling device;Formed with installation cavity in casing, and installation hole is equipped on the side plate of casing, which is communicated with installation cavity;Liquid cooling device is located in installation cavity, and is equipped with liquid inlet passage and liquid outlet passage, and the liquid inlet and liquid outlet of liquid inlet passage and liquid outlet passage are stretched to the outside of casing from installation hole, and liquid inlet passage and liquid outlet passage are sealingly connected with installation hole.The technical scheme provided by the utility model can move the water leakage point of liquid cooling device to the outside of casing, to avoid vehicle failure caused by liquid leakage.

Description

Technical Field

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

[0002] With the development of technology, new energy vehicles have been widely promoted. New energy vehicles are divided into pure electric vehicles and hybrid vehicles. Among them, OBC (Onboard Charger), DC-DC (Direct Current-Direct Current Converter), and PDU (Power Distribution Unit) are important components of electric vehicles.

[0003] In related technologies, the liquid cooling device used in on-board chargers is usually set up separately from the housing. However, the leakage point at the inlet and outlet of the liquid cooling device is inside the housing. If leakage occurs at the inlet and outlet, it can easily cause vehicle malfunction. Utility Model Content

[0004] The main purpose of this utility model is to propose an electrical device, an on-board charger, and a vehicle, which aims to move the water leakage point of the liquid cooling device to the outside of the housing in order to avoid leakage causing vehicle failure.

[0005] To achieve the above objectives, this utility model proposes an electrical device comprising: A housing, wherein a mounting cavity is formed inside the housing, and a mounting hole communicating with the mounting cavity is provided on one side plate of the housing; A liquid cooling device is located inside the mounting cavity and is provided with a liquid inlet channel and a liquid outlet channel. The liquid inlet and liquid outlet of the liquid inlet channel and the liquid outlet channel extend from the mounting hole to the outside of the housing, and the liquid inlet channel and the liquid outlet channel are sealed to the mounting hole.

[0006] In one embodiment, flanges are provided on the inlet channel and the outlet channel, the shape of the flanges being adapted to the shape of the mounting holes, and the flanges being sealed to the mounting holes.

[0007] In one embodiment, the housing includes: The enclosure has multiple side panels that enclose the mounting cavity, and the mounting holes are provided on any side panel of the enclosure. A cover is provided on the box and is sealed to the box and the flange.

[0008] In one embodiment, the flange and the mounting hole are sealed together by a sealant or a sealing ring; And / or, the upper end face of the housing and the flange is sealed to the cover by sealant or sealing ring.

[0009] In one embodiment, the flange has a trapezoidal cross-section, and the cross-section of the mounting hole is adapted to the shape of the flange's cross-section.

[0010] In one embodiment, baffles are provided on the inlet channel and the outlet channel adjacent to the flange, and a guide groove is formed between the baffles and the flange. The side wall portion of the housing that forms the mounting hole is located within the guide groove.

[0011] In one embodiment, the electrical equipment includes a flange, through which both the liquid inlet channel and the liquid outlet channel pass; Alternatively, the electrical equipment may include two flanges, with the inlet channel passing through one of the flanges and the outlet channel passing through the other flange.

[0012] In one embodiment, the liquid cooling device is a harmonica tube type liquid cooling plate.

[0013] To achieve the above objectives, this utility model also proposes an on-board charger, including the electrical equipment described above.

[0014] To achieve the above objectives, this utility model also proposes a vehicle, including the on-board charger described above.

[0015] The technical solution of this utility model extends the inlet and outlet of the liquid cooling device from the mounting hole of the housing to the outside of the housing, thus placing the leakage point of the liquid cooling device outside the housing. This way, even if leakage occurs at the leakage point of the liquid cooling device, it will not affect the internal components of the housing, effectively preventing the entire machine from malfunctioning due to leakage at the leakage point. Furthermore, by sealing the inlet and outlet channels with the mounting hole, the sealing effect inside the housing can be guaranteed to meet the airtightness requirements of the internal components. Attached Figure Description

[0016] 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.

[0017] Figure 1 An exploded view of an embodiment of the electrical equipment provided by this utility model; Figure 2 A schematic diagram of the liquid cooling device in one embodiment of the electrical equipment provided by this utility model.

[0018] Explanation of icon numbers:

[0019] 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

[0020] 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.

[0021] 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.

[0022] 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.

[0023] With the development of technology, new energy vehicles have been widely promoted. New energy vehicles are divided into pure electric vehicles and hybrid vehicles. Among them, OBC (Onboard Charger), DC-DC (Direct Current-Direct Current Converter), and PDU (Power Distribution Unit) are important components of electric vehicles.

[0024] In related technologies, the liquid cooling device used in on-board chargers is usually set separately from the housing. When the heat pipe is installed in the housing, a sealing ring is usually set on the housing to seal the connection between the heat pipe and the inlet and outlet of the heat pipe. However, the leakage point at the inlet and outlet of the heat pipe is inside the housing. If leakage occurs at the inlet and outlet, it can easily cause vehicle failure.

[0025] Based on the above problems, this utility model proposes an electrical device 100, an on-board charger, and a vehicle, aiming to move the water leakage point of the liquid cooling device 20 to the outside of the housing 10, so as to avoid the leakage causing vehicle failure.

[0026] Please see Figure 1 , Figure 2 In one embodiment of the present invention, the electrical device 100 includes a housing 10 and a liquid cooling device 20; a mounting cavity 10a is formed inside the housing 10, and a mounting hole 10b communicating with the mounting cavity 10a is provided on one side plate of the housing 10; the liquid cooling device 20 is located inside the mounting cavity 10a and is provided with a liquid inlet channel 21 and a liquid outlet channel 22, the liquid inlet and liquid outlet of the liquid inlet channel 21 and the liquid outlet channel 22 extend from the mounting hole 10b to the outside of the housing 10, and the liquid inlet channel 21 and the liquid outlet channel 22 are sealed to the mounting hole.

[0027] The technical solution of this utility model extends the inlet and outlet of the liquid cooling device 20 from the mounting hole 10b of the housing 10 to the outside of the housing 10. This effectively places the leakage point of the liquid cooling device 20 outside the housing 10, so that even if leakage occurs at the leakage point of the liquid cooling device 20, it will not affect the internal components of the housing 10, thus effectively preventing the entire machine from malfunctioning due to leakage at the leakage point of the liquid cooling device 20. Furthermore, by sealing the inlet and outlet channels 21 and 22 with the mounting hole 10b, the sealing effect inside the housing 10 can be guaranteed to meet the airtightness requirements of the internal components of the housing 10.

[0028] In this embodiment, the liquid cooling device 20 can be a harmonica tube with water channels inside. Coolant is contained in the water channels, and the coolant effectively dissipates heat from the device to be cooled during its flow.

[0029] The leakage point at the inlet of the liquid inlet channel 21 of the liquid cooling device 20 is moved to the outside of the housing 10, and the leakage point at the outlet of the liquid outlet channel 22 of the liquid cooling device 20 is also moved to the outside of the housing 10. Correspondingly, the housing 10 is provided with two mounting holes 10b, so that the liquid inlet channel 21 and the liquid outlet channel 22 extend to the outside of the housing 10 from the two mounting holes 10b, respectively. The liquid inlet channel 21 and the liquid outlet channel 22 can be rigid pipes or flexible pipes.

[0030] In practical applications, the liquid inlet channel 21 and the mounting hole 10b can be sealed using sealant 40 or a sealing ring, or by welding. Similarly, the liquid outlet channel 22 and the mounting hole 10b can also be sealed using sealant 40 or a sealing ring, or by welding.

[0031] Please see Figure 1 , Figure 2 In one embodiment of this utility model, flanges 31 are provided on the liquid inlet channel 21 and the liquid outlet channel 22; the shape of the flange 31 is adapted to the shape of the mounting hole 10b, and the flange 31 is sealed to the mounting hole 10b.

[0032] With this configuration, the inlet channel 21 and outlet channel 22 of the liquid cooling device 20 can be sealed to the mounting hole 10b via the flange 31, and the sealing effect between the inlet channel 21 and outlet channel 22 and the mounting hole 10b can be effectively improved.

[0033] In practical applications, the flange 31 can be sealed to the liquid inlet channel 21 and liquid outlet channel 22 of the liquid cooling device 20 by means of welding, bonding or other methods.

[0034] Furthermore, the flange 31 can be a trapezoidal flange or a flange of other shapes.

[0035] Please see Figure 1 In one embodiment of the present invention, the housing 10 includes a box body 11 and a cover body 12; multiple side plates of the box body 11 enclose a mounting cavity 10a, and mounting holes 10b are provided on any side plate of the box body 11; the cover body 12 covers the box body 11 and is sealed to the box body 11 and the flange 31.

[0036] This configuration, by designing the housing 10 as a box 11 and a cover 12, makes it easier to install the liquid cooling device 20 and other components into the mounting cavity 10a of the housing 10. In addition, by sealing the cover 12 with the box 11 and the flange 31, the sealing effect inside the housing 10 can be guaranteed to meet the airtightness requirements of the components inside the housing 10.

[0037] Please see Figure 1 , Figure 2 In one embodiment of this utility model, flange 31 is welded to liquid inlet channel 21 and liquid outlet channel 22.

[0038] This configuration, achieved by welding, connects the flange 31 to the liquid inlet channel 21 and the liquid outlet channel 22 of the liquid cooling device 20. This improves the reliability of the connection between the flange 31 and the liquid inlet channel 21 and the liquid outlet channel 22, and enhances the sealing effect between the flange 31 and the liquid inlet channel 21 and the liquid outlet channel 22. This effectively reduces the risk of leakage between the flange 31 and the liquid inlet channel 21 and the liquid outlet channel 22.

[0039] In practical applications, the above welding methods include, but are not limited to, laser welding, resistance welding, gas welding, and brazing.

[0040] Please see Figure 1 In one embodiment of this utility model, the flange 31 and the mounting hole 10b are sealed together by sealant 40 or a sealing ring.

[0041] With this setup, the use of sealant 40 or sealing rings can not only assemble flange 31 and housing 11 together, but also improve the sealing effect inside housing 10, so as to fully meet the airtightness requirements of internal components of housing 10.

[0042] Please see Figure 1 In one embodiment of this utility model, the upper end face of the box body 11 and the flange 31 is sealed to the cover body 12 by a sealant 40 or a sealing ring.

[0043] With this configuration, the use of sealant 40 or sealing rings can not only assemble the housing 11 and flange 31 with the cover 12, but also improve the sealing effect inside the housing 10 to fully meet the airtightness requirements of the internal components of the housing 10.

[0044] In some embodiments, the sealant 40 can be FIPG (Formed-In-Place Gasket) adhesive. FIPG adhesive refers to an adhesive prepared using the FIPG process. After applying the liquid sealant to the flange surface, the workpiece is assembled in an uncured state, and then a period of time is required for the sealant to fully cure.

[0045] In some embodiments, the sealant 40 includes a first sealant 41 and a second sealant 42; the flange 31 and the mounting hole 10b are sealed together by the first sealant 41; the upper end face of the housing 11 and the flange 31 is sealed together with the cover 12 by the second sealant 42.

[0046] Please see Figure 1In one embodiment of this utility model, the first sealant 41 is an arc-shaped sealant 40, which is disposed between the flange 31 and the mounting hole 10b; the second sealant 42 is an annular sealant 40, which extends circumferentially along the housing 11 and is disposed between the upper end face of the housing 11 and the flange 31 and the cover 12.

[0047] With this configuration, the first sealant 41 can be designed as an arc-shaped sealant 40 based on the shape between the flange 31 and the mounting hole 10b, so that the arc-shaped sealant 40 can fully seal the gap between the flange 31 and the mounting hole 10b, while improving the assembly reliability between the flange 31 and the mounting hole 10b; and the second sealant 42 can be designed as an annular sealant 40 based on the shape between the upper end face formed by the box body 11 and the flange 31 and the cover 12, so that the annular sealant 40 can fully seal the gap between the upper end face formed by the box body 11 and the flange 31 and the cover 12, while improving the assembly reliability between the upper end face formed by the box body 11 and the flange 31 and the cover 12.

[0048] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the cross-section of the flange 31 is approximately trapezoidal, and the cross-section of the mounting hole 10a is adapted to the shape of the cross-section of the flange 31.

[0049] With this configuration, by selecting a flange 31 with a trapezoidal cross-section to achieve a sealing connection with the mounting hole 10b, the trapezoidal flange face of the flange 31 can better fit with the mounting hole 10b to form a tighter sealing effect. At the same time, it can increase the sealing area to improve the reliability of the seal.

[0050] Please see Figure 2 In one embodiment of the present invention, baffles 32 are provided on the liquid inlet channel 21 and the liquid outlet channel 22 at positions adjacent to the flange 31, and a guide groove 321 is formed between the baffles 32 and the flange 31. The side wall portion of the housing 11 that forms the mounting hole 10b is located in the guide groove 321.

[0051] With this configuration, the guide groove 321 is formed by using the design of baffle 32 and flange 31. The guide groove 321 has the function of guiding and positioning. During assembly, the side wall part of the housing 11 with mounting hole 10b can be locked in the guide groove 321 to achieve positioning, thereby improving the assembly accuracy. At the same time, the design of baffle 32 can also block salt spray.

[0052] In one embodiment of the present invention, the electrical equipment 100 includes a flange 31, and both the liquid inlet channel 21 and the liquid outlet channel 22 pass through the flange 31.

[0053] With this configuration, during assembly, the inlet channel 21 and the outlet channel 22 can be inserted into the same flange 31, which can reduce the number of flanges 31 used and reduce manufacturing costs.

[0054] Alternatively, please see Figure 1 and Figure 2 In another embodiment of the present invention, the electrical equipment 100 includes two flanges 31, with an inlet channel 21 passing through one flange 31 and an outlet channel 22 passing through the other flange 31.

[0055] With this configuration, during assembly, the liquid inlet channel 21 and the liquid outlet channel 22 can be respectively inserted into the two flanges 31, which makes it easier to achieve a sealed connection between the liquid inlet channel 21 and the liquid outlet channel 22 and the housing 10.

[0056] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the liquid cooling device 20 is a harmonica tube type liquid cooling plate.

[0057] The harmonica tube-type liquid cooling plate used in this embodiment has the advantages of low cost, light weight, simple structure and high production efficiency.

[0058] This utility model also proposes an on-board charger, which includes an electrical device 100. The specific structure of the electrical device 100 is as described in the above embodiments. Since this on-board charger 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.

[0059] In this embodiment, the on-board charger may also include devices such as an OBC motherboard and a DC-DC control board disposed in the housing 10.

[0060] 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.

[0061] 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 electrical device, characterized in that, include: A housing, wherein a mounting cavity is formed inside the housing, and a mounting hole communicating with the mounting cavity is provided on one side plate of the housing; A liquid cooling device is located inside the mounting cavity and is provided with a liquid inlet channel and a liquid outlet channel. The liquid inlet and liquid outlet of the liquid inlet channel and the liquid outlet channel extend from the mounting hole to the outside of the housing, and the liquid inlet channel and the liquid outlet channel are sealed to the mounting hole.

2. The electrical equipment as described in claim 1, characterized in that, Flanges are provided on the inlet channel and the outlet channel, and the shape of the flanges is adapted to the shape of the mounting holes, and the flanges are sealed to the mounting holes.

3. The electrical equipment as described in claim 2, characterized in that, The housing includes: The enclosure has multiple side panels that enclose the mounting cavity, and the mounting holes are provided on any side panel of the enclosure. A cover is provided on the box and is sealed to the box and the flange.

4. The electrical equipment as described in claim 3, characterized in that, The flange and the mounting hole are sealed together by sealant or sealing ring. And / or, the upper end face of the housing and the flange is sealed to the cover by sealant or sealing ring.

5. The electrical equipment as described in claim 4, characterized in that, The flange has a trapezoidal cross-section, and the cross-section of the mounting hole is adapted to the shape of the flange cross-section.

6. The electrical equipment as described in claim 5, characterized in that, The inlet channel and the outlet channel are equipped with baffles adjacent to the flange, and a guide groove is formed between the baffles and the flange. The side wall portion of the housing that forms the mounting hole is located within the guide groove.

7. The electrical equipment as described in any one of claims 2 to 6, characterized in that, The electrical equipment includes a flange, and both the liquid inlet channel and the liquid outlet channel pass through the flange; Alternatively, the electrical equipment may include two flanges, with the inlet channel passing through one of the flanges and the outlet channel passing through the other flange.

8. The electrical equipment as claimed in claim 7, characterized in that, The liquid cooling device is a harmonica tube-type liquid cooling plate.

9. An on-board charger, characterized in that, Includes the electrical equipment as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the on-board charger as described in claim 9.

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