Box body, electronic equipment, power assembly and vehicle

Abstract

The utility model provides a box body, electronic equipment, a power assembly and a vehicle. The box body comprises a first flow channel and a second flow channel which communicate with each other. The first flow channel comprises a first bottom wall. The second flow channel comprises a second bottom wall. The first bottom wall is connected with the second bottom wall. And the second bottom wall is lower than the first bottom wall in the height direction. The first bottom wall is suitable for being arranged corresponding to the first heating component. According to the utility model, the heat dissipation uniformity of the first heating component can be improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of vehicles, and more specifically to a box, an electronic device, a power assembly and a vehicle. Background Art

[0002] A power supply and electronic control integrated cooling structure in the related art includes a power supply cooling channel and an electronic control cooling channel connected in sequence. The power supply cooling channel is suitable for cooling heat-generating components such as an on-board power supply. The electronic control cooling channel is suitable for cooling heat-generating components such as a motor controller including a power component. The coolant flows from the power supply cooling channel to the electronic control cooling channel. However, there is usually an uneven distribution of coolant at the inlet of the electronic control cooling channel, which will cause the problem of uneven heat dissipation of the heat-generating components. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the first aspect of the utility model provides a box body, which includes a first flow channel and a second flow channel connected to each other, the first flow channel includes a first bottom wall, the second flow channel includes a second bottom wall, the first bottom wall and the second bottom wall are connected, and the second bottom wall is lower than the first bottom wall in the height direction, and the first bottom wall is suitable for being arranged corresponding to the first heat-generating component.

[0005] According to the box body of the first aspect of the utility model, by setting the second bottom wall of the second flow channel to be lower than the first bottom wall of the first flow channel, turbulence is generated in the coolant at the intersection of the second flow channel and the first flow channel due to the height difference, and the coolant is mixed here, which helps to improve the uniformity of the coolant in the first flow channel, so as to achieve the purpose of more uniform heat dissipation of the first heat-generating component.

[0006] Optionally, the second flow channel is located upstream of the first flow channel.

[0007] Optionally, the inlet of the second flow channel is lower than the outlet of the second flow channel.

[0008] Optionally, the second flow channel extends along the first direction, a size of an inlet of the second flow channel in the second direction is smaller than a size of an outlet of the second flow channel in the second direction, and any two of the first direction, the second direction and the height direction are perpendicular to each other.

[0009] Optionally, the housing further includes a third flow channel and an accommodating space, the third flow channel is arranged around the accommodating space, and the accommodating space is suitable for accommodating a second heat-generating component.

[0010] Optionally, the box body further includes a spoiler, and the spoiler is arranged in the second flow channel.

[0011] Optionally, the housing includes a cooling connection portion suitable for connecting the heat-generating component, and the cooling connection portion is arranged corresponding to the first flow channel.

[0012] Optionally, a partition is provided on the box body, and a through hole is provided on the partition;

[0013] The box body has a first chamber and a second chamber, and the box body includes a partition plate located between the first chamber and the second chamber, and the partition plate is provided with a through hole;

[0014] The box body further includes a flow channel plate, the flow channel plate is fixedly connected to the partition plate, and the through hole at least accommodates a portion of the flow channel plate, and the flow channel plate is formed with the first flow channel and the second flow channel.

[0015] Optionally, the second flow channel and the third flow channel are connected at the inlet of the second flow channel.

[0016] Optionally, the second housing portion includes a liquid inlet channel, and the liquid inlet channel is connected to the third channel.

[0017] Optionally, the box body includes a liquid outlet channel, the liquid outlet channel is connected to the first channel, the liquid outlet channel includes a first liquid outlet portion and a second liquid outlet portion connected in sequence, one end of the first liquid outlet portion is connected to the outlet portion of the first channel, the other end of the first liquid outlet portion is extended along a first direction, and the second liquid outlet portion is extended along the height direction, the first direction is perpendicular to the height direction,

[0018] In a plane perpendicular to the height direction, the orthographic projection of the first flow channel overlaps with the orthographic projection of the first liquid outlet.

[0019] A second aspect of the utility model provides an electronic device, wherein the electronic device comprises the above-mentioned box.

[0020] According to the electronic device of the second aspect of the utility model, by applying the above-mentioned box body, the heat dissipation capacity of the electronic device can be improved.

[0021] Optionally, the electronic device is configured as a motor controller;

[0022] The electronic device further includes a first heat-generating component configured as a power component.

[0023] Optionally, the electronic device is configured as a vehicle-mounted power supply;

[0024] The electronic device further includes a second heat-generating component configured as a heat-generating element.

[0025] A third aspect of the present invention provides a power assembly, wherein the power assembly includes the above-mentioned box, or the power assembly includes the above-mentioned electronic device.

[0026] According to the power assembly of the third aspect of the utility model, by applying the above-mentioned box or electronic equipment, the stability of the operation of the power assembly can be improved.

[0027] Optionally, the box body includes a partition, which divides the inner cavity of the box body into a first chamber and a second chamber, the first chamber is used to accommodate at least part of a first heat-generating component, the first heat-generating component is configured as a power component of a motor controller, and the second chamber is used to accommodate at least part of a second heat-generating component, the second heat-generating component is configured as a heating element of a vehicle power supply.

[0028] A fourth aspect of the utility model provides a vehicle, which includes the above-mentioned power assembly.

[0029] The vehicle according to the fourth aspect of the utility model can improve the stability of vehicle operation, help reduce the failure rate, and allow users to obtain a better use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0031] Figure 1 A top view of a box according to a preferred embodiment of the present utility model;

[0032] Figure 2 For along Figure 1 A cross-sectional view taken along line AA in FIG.

[0033] Figure 3 for Figure 1 A stereoscopic view of the box body in a state where the second box body portion is removed from one viewing angle;

[0034] Figure 4 for Figure 1 A stereoscopic view of the box body in another perspective in a state where the second box body portion is removed and the first flow channel and the second flow channel are retained;

[0035] Figure 5 for Figure 3A three-dimensional view of the first box body without the flow channel plate installed;

[0036] Figure 6 for Figure 3 and Figure 4 A three-dimensional view of the flow channel plate in FIG.

[0037] Figure 7 for Figure 1 A perspective view of the box shown;

[0038] Figure 8 for Figure 1 A three-dimensional view of the second box portion;

[0039] Fig. 9 for Figure 1 A three-dimensional schematic diagram of the virtual structures of the liquid inlet channel, the first channel, the second channel, the third channel and the liquid outlet channel in the box after being extracted and materialized;

[0040] Fig.10 for Fig. 9 A schematic plan view of the liquid inlet channel, the first channel, the second channel, the third channel and the liquid outlet channel in the box body is shown.

[0041] Description of reference numerals:

[0042] 100: Box 101: Partition

[0043] 102: First chamber 103: Second chamber

[0044] 110: first box body 111: main body

[0045] 111a: through hole 111b: liquid outlet channel

[0046] 111c: first liquid outlet 111d: second liquid outlet

[0047] 111e: Liquid outlet 112: Flow channel plate

[0048] 112b: First flow channel

[0049] 112c: second flow channel 112d: first bottom wall

[0050] 112d1: higher fever area 112d2: lower fever area

[0051] 112e: second bottom wall 112f: spoiler

[0052] 112g: cooling connection 112h: inlet

[0053] 112i: exit 112j: exit

[0054] 130: Second box part

[0055] 131: Third flow channel 132: Liquid inlet flow channel

[0056] 133: Liquid inlet 134: Accommodation space

[0057] 135: Cooling slot D1: First direction

[0058] D2: Second direction D3: Height direction DETAILED DESCRIPTION

[0059] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0060] In order to fully understand the implementation of the present invention, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present invention is not limited to the specific details familiar to those skilled in the art.

[0061] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention, and the singular forms "a", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, integral bodies, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0062] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0063] The "parallel" / "vertical" and similar expressions used in the present invention include an absolute parallel / vertical relationship and a roughly parallel / vertical relationship (for example, a relationship that differs from absolute parallel / vertical by -5° to +5°), which can have the same effect.

[0064] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present invention and are not intended to limit the present invention.

[0065] The utility model provides a box body, electronic equipment, a power assembly and a vehicle.

[0066] like Figures 1 to 10 As shown, according to the utility model, the housing 100 may include a first flow channel 112b and a second flow channel 112c that are connected to each other. The first flow channel 112b may include a first bottom wall 112d. The second flow channel 112c includes a second bottom wall 112e. The first bottom wall 112d and the second bottom wall 112e are connected, and the second bottom wall 112e is lower than the first bottom wall 112d in the height direction D3. The first bottom wall 112d is suitable for being arranged correspondingly or relatively with a first heat-generating component (not shown) to achieve heat exchange with the first heat-generating component, thereby cooling the first heat-generating component. The first heat-generating component here may be a power component or a power module. The power component may include power devices such as IGBT devices.

[0067] According to the box body of the utility model, by setting the second bottom wall 112e of the second flow channel 112c to be lower than the first bottom wall 112d of the first flow channel 112b, the coolant can generate turbulence due to the height difference at the intersection of the second flow channel 112c and the first flow channel 112b, thereby causing the coolant to mix there, which helps to improve the uniformity of the coolant in the first flow channel 112b, so as to achieve the purpose of more uniform heat dissipation for the first heat-generating component.

[0068] For example, the first flow channel 112b is located downstream of the second flow channel 112c. In other words, the second flow channel 112c is located upstream of the first flow channel 112b. In use, the coolant flows from the second flow channel 112c to the first flow channel 112b. By adopting this technical means, the coolant can be subjected to reverse impact at the intersection of the second flow channel 112c and the first flow channel 112b, so that the coolant is mixed more evenly, which helps to improve the uniformity of the coolant in the first flow channel 112b.

[0069] Further, the housing 100 may also include a third flow channel 131. In the use state, the first flow channel 112b and the second flow channel 112c are located above the third flow channel 131 in the height direction D3 of the housing 100. The third flow channel 131 is suitable for cooling a second heating component such as a vehicle-mounted power supply (not shown). The second flow channel 112c is connected to the third flow channel 131. According to the housing 100 of the utility model, by setting the second bottom wall 112e of the second flow channel 112c to be lower than the first bottom wall 112d of the first flow channel 112b, the coolant is subjected to a reverse impact at the junction of the second flow channel 112c and the first flow channel 112b, thereby making the coolant mix more evenly, which helps to improve the uniformity of heat dissipation of the components to be cooled located downstream. Among them, the second heating component is a heating element of the vehicle-mounted power supply. The heating element can be an element or device such as an inductor, a capacitor, a MOS tube, etc.

[0070] like Figure 2 , Fig. 9 as well as Fig.10 As shown, for example, the inlet 112h of the second flow channel 112c is lower than the outlet 112j of the second flow channel 112c. This can slow down the flow rate of the coolant in the second flow channel 112c, thereby facilitating preliminary mixing of the coolant in the second flow channel 112c, so that the coolant at the outlet 112j of the second flow channel 112c is more uniform than that at the inlet 112h.

[0071] like Figure 2 , Fig. 9 as well as Fig.10 As shown, for example, the first flow channel 112b and the second flow channel 112c are arranged in a first direction D1 perpendicular to the height direction D3. In the flow direction of the coolant, the second flow channel 112c is located upstream of the first flow channel 112b. That is, the coolant flows from the second flow channel 112c to the first flow channel 112b. The inlet 112h of the second flow channel 112c is connected to the outlet of the third flow channel 131. A connecting flow channel is formed at one end of the third flow channel 131 close to the second flow channel 112c. The connecting flow channel is curved. The connecting flow channel connects the third flow channel 131 to the inlet 112h of the second flow channel 112c, which plays a role in smooth transition and reversal.

[0072] like Fig. 9 and Fig.10As shown, optionally, the size of the inlet 112h of the second flow channel 112c in the second direction D2 is smaller than the size of the outlet 112j of the second flow channel 112c in the second direction D2. That is, the width of the second flow channel 112c gradually widens from the inlet 112h to the outlet. In this way, the coolant can be gradually evenly distributed in the second direction D2 before entering the first flow channel 112b, thereby helping the coolant to be more evenly distributed after the first flow channel 112b. In this way, the coolant can be prevented from being distributed toward one side in the second direction D2, ensuring that the coolant is more evenly distributed in the second flow channel 112c along the second direction D2.

[0073] In such Fig.10 In the example shown, in a plane perpendicular to the first direction D1, the orthographic projection of the inlet of the second flow channel 112c and the middle of the orthographic projection of the outlet of the second flow channel 112c are arranged in a staggered manner. In other words, the center of the inlet of the second flow channel 112c and the center of the outlet of the second flow channel 112c are not on the same straight line parallel to the first direction D1.

[0074] In other examples, in a plane perpendicular to the first direction D1, the orthographic projection of the inlet 112h of the second flow channel 112c is arranged corresponding to the middle of the orthographic projection of the outlet 112j of the second flow channel 112c. In other words, the center of the inlet 112h of the second flow channel 112c and the center of the outlet of the second flow channel 112c are located on the same straight line parallel to the first direction D1.

[0075] like Fig. 9 and Fig.10 As shown, in addition, the housing 100 may further include a spoiler 112f. The spoiler 112f is disposed in the second flow channel 112c. By disposing the spoiler 112f in the second flow channel 112c, the flow state of the coolant at the corresponding position can be adjusted so that the flow speed of the coolant at the corresponding position is slowed down and the corresponding position is bypassed, so that the coolant can perform heat exchange in a targeted manner and improve the balance of the overall heat dissipation. For example, the spoiler 112f is disposed at a position corresponding to a device with a low heat generation or no heat generation.

[0076] It should be noted that Fig. 9 and Fig.10 The examples shown are schematic diagrams of extracting and materializing the virtual structures of the inlet channel, the first channel, the second channel, the third channel and the outlet channel. Meanwhile, the spoiler 112f in the figure is not a virtual structure such as a hole, but a physical structure.

[0077] like Fig.10In the example shown, components with higher heat generation are arranged corresponding to the higher heat generation area 112d1 of the first bottom wall 112d, and components with lower heat generation such as diodes are arranged corresponding to the lower heat generation area 112d2 of the first bottom wall 112d. During the flow of the coolant, when the coolant passes through the spoiler 112f, it will be blocked by the spoiler 112f to form a flow direction that is divided to both sides of the spoiler 112f, and a region with less fluid will be formed behind the spoiler 112f. Therefore, after the coolant flows through the spoiler 112f, there is a tendency for the coolant to converge and flow directly behind the spoiler. However, due to the previous obstruction by the spoiler 112f, the flow directly behind the spoiler 112f will be relatively reduced. The coolant will flow more to the area outside the area directly behind the spoiler 112f under the trend of inertia, so as to adjust the flow rate to achieve the purpose of targeted heat dissipation of the higher heat generation part. The direction indicated by the arrow in the figure is the flow direction of the coolant.

[0078] Optionally, the spoiler 112f is a rib or a tendon.

[0079] like Figure 7 As shown, for example, the box 100 may include a housing space 134 suitable for housing a second heat generating component of the vehicle-mounted power supply. The third flow channel 131 is arranged around the housing space 134. In a plane perpendicular to the height direction D3, the orthographic projection of the portion of the third flow channel 131 around the housing space 134 is annular or close to annular. In this way, the second heat generating component located in the housing space 134 can be cooled by using the third flow channel 131.

[0080] like Figures 1 to 3 , Figure 6 , Fig. 9 as well as Fig.10 As shown, for example, the housing 100 may include a cooling connection portion 112g suitable for installing a power component. The cooling connection portion 112g is arranged corresponding to the first flow channel 112b. When the cooling connection portion 112g is installed with a first heat generating component such as a power component, the first flow channel 112b through which the coolant flows can perform heat exchange with the power component to achieve cooling of the power component. The power component here may include a device such as an IGBT device.

[0081] like Figures 1 to 3 ,as well as Figure 6 As shown, optionally, the cooling connection portion 112g can be configured as an open opening. The open opening is connected to the first flow channel 112b. In this way, the power component can be used as a part of the inner wall of the first flow channel 112b, so that the outer surface of the power component can directly contact the coolant, thereby improving the heat exchange efficiency, and further improving the heat dissipation efficiency and heat dissipation effect.

[0082] like Figure 2 , Figures 7 to 10As shown, optionally, a liquid inlet channel 132 and a liquid outlet channel 111b are further formed inside the housing 100. The liquid inlet channel 132 is connected to the third channel 131. The liquid outlet channel 111b is connected to the first channel 112b. In this way, the liquid inlet channel 132 and the liquid outlet channel 111b are connected to a heat exchange device such as an air conditioner located outside the housing 100, thereby realizing the circulation of the coolant.

[0083] See also Figures 1 to 10 For example, the housing 100 has a first chamber 102 and a second chamber 103. The housing 100 includes a partition 101 located between the first chamber 102 and the second chamber 103. The partition 101 is provided with a through hole 111a. The housing 100 also includes a flow channel plate 112. The flow channel plate 112 is fixedly connected to the partition 101. And the through hole 111a at least accommodates part of the flow channel plate 112. The flow channel plate 112 is formed with a first flow channel 112b and a second flow channel 112c. The second flow channel 112c and the third flow channel 131 are connected at the inlet 112h of the second flow channel 112c. By setting the flow channel plate 112 and setting the first flow channel 112b and the second flow channel 112c on the flow channel plate 112, it is conducive to separate processing, thereby improving the processing accuracy and processing efficiency. Accordingly, the third flow channel 131 can be at least partially set on the partition 101.

[0084] like Figures 1 to 10 As shown, for example, the box body 100 may include a first box body portion 110 and a second box body portion 130. The first box body portion 110 may include a body 111 and a flow channel plate 112. The body 111 is provided with a through hole 111a. The flow channel plate 112 is detachably connected to the body 111. The flow channel plate 112 may include at least part of the first flow channel 112b and the second flow channel 112c. The inlet of the second flow channel 112c is arranged corresponding to the through hole 111a. The second box body portion 130 is located at the lower part of the first box body portion 110 in the height direction D3. The second box body portion 130 and the body 111 are surrounded to form a third flow channel 131. The outlet of the third flow channel 131 is arranged corresponding to the through hole 111a and is connected to the second flow channel 112c. By dividing the box body 100 into two parts, the first box body portion 110 and the second box body portion 130, it is convenient to manufacture them separately. By dividing the first housing 110 into two parts, namely, a detachable flow channel plate 112 and a main body 111, and arranging the first flow channel 112b and the second flow channel 112c on the flow channel plate 112, it is convenient to manufacture the first housing 110, and it is also helpful to improve the manufacturing accuracy of the first flow channel 112b and the second flow channel 112c. By arranging the third flow channel 131 on the second housing 130, it is also helpful to improve the manufacturing accuracy of the third flow channel 131.

[0085] Optionally, the first box body portion 110 and the second box body portion 130 may be integrally formed.

[0086] Optionally, the first box body portion 110 and the second box body portion 130 may be two independent components, which are separately manufactured and then assembled together by welding, bolting, or the like.

[0087] Exemplarily, the second box body 130 is provided with a cooling groove 135, such as Figure 8 As shown. The notch of the cooling groove 135 faces the first box body 110. When the flow channel plate 112 is installed to the first box body 110 and the second box body 130, the flow channel plate 112 closes the notch of the cooling groove 135 to enclose and form a third flow channel 131 between the flow channel plate 112 and the second box body 130. The cooling groove 135 is connected to the second flow channel 112c of the flow channel plate 112 at a position corresponding to the inlet 112h of the flow channel plate 112. The flow channel plate 112 is provided with an outlet portion 112i at a portion corresponding to the outlet of the first flow channel 112b. The outlet portion 112i is arranged corresponding to and connected to the liquid outlet flow channel 111b.

[0088] like Figure 1 , Figure 2 , Figures 7 to 10 As shown, optionally, the second housing 130 includes a liquid inlet channel 132. The liquid inlet channel 132 is connected to the third channel 131. By arranging the liquid inlet channel 132 in the second housing 130, the liquid inlet channel 132 and the third channel 131 can be arranged continuously, thereby improving the sealing performance of the connection between the liquid inlet channel 132 and the third channel 131, thereby reducing the sealing cost.

[0089] See also Figure 8 , Fig. 9 as well as Fig.10 Optionally, the inlet of the liquid inlet channel 132 forms a liquid inlet 133 for the coolant to flow into the box body 100 .

[0090] See also Figure 2 , Figure 4 , Figure 7 , Fig. 9 as well as Fig.10Optionally, the housing 100 includes a liquid outlet channel 111b. The liquid outlet channel 111b is connected to the first channel 112b. The liquid outlet channel 111b may include a first liquid outlet portion 111c and a second liquid outlet portion 111d connected in sequence. One end of the first liquid outlet portion 111c is connected to the outlet portion of the first channel 112b. The other end of the first liquid outlet portion 111c is extended along the first direction D1. The second liquid outlet portion 111d is extended along a direction intersecting the first direction D1 and the second direction D2. Here, the direction intersecting the first direction D1 and the second direction D2 is, for example, the height direction D3. In a plane perpendicular to the height direction D3, the orthographic projection of the first channel 112b overlaps with the orthographic projection of the first liquid outlet portion 111c. By arranging the first liquid outlet portion 111c and the second liquid outlet portion 111d of the liquid outlet channel 111b in this way, the length of the liquid outlet channel 111b can be increased while improving the compactness of the structure, thereby extending the time for the coolant to circulate in the body 111, thereby making the heat exchange more sufficient.

[0091] Further optionally, in an example where the housing 100 is manufactured by assembling the first housing portion 110 and the second housing portion 130, the liquid outlet channel 111b can be processed in the first housing portion 110. Figure 2 In the example shown, the first housing portion 110 within the dotted line range refers to the range shown in the cross section. It can be understood that in a separate view of the first housing portion 110 (eg Figure 4 and Figure 7 As shown in FIG. 1 , the entity portion used to enclose and form the liquid outlet channel 111 b is a portion of the first box body 110 .

[0092] See also Figure 2 , Figure 4 , Figure 7 , Fig. 9 as well as Fig.10 Optionally, a liquid outlet 111e is formed at the end of the second liquid outlet portion 111d to allow the coolant to flow out of the box body 100.

[0093] like Figures 1 to 10As shown, the box body 100 of the utility model is equipped with a flow channel plate 112 detachably between the first box body 110 and the second box body 130 to control the flow of the coolant from the second box body 130 to the first box body 110 in a relatively limited space, thereby completing the interconnection of the power cooling water channel including the third flow channel 131 and the electric control cooling water channel including the first flow channel 112b and the second flow channel 112c in a relatively small space, which greatly saves the size of the space occupied by the box in the horizontal direction perpendicular to the height direction D3. After the coolant cools the power component, it enters the second flow channel 112c. The third flow channel 131 adopts a design with a large flow channel height and a small flow channel width, which effectively increases the heat exchange area between the coolant and the side of the power component, improves the heat exchange effect, and thus helps to complete the heat dissipation of the power component on a shorter flow path. When the coolant enters the second flow channel 112c through the through hole 111a, a second flow channel 112c is added to rectify the coolant, so that the coolant entering the first flow channel 112b is evenly distributed, ensuring uniform heat dissipation of power components or power modules including devices such as IGBT devices. In the case where some power devices such as IGBT devices and diodes are neatly distributed, a spoiler 112f is added in the second flow channel 112c of the flow channel plate 112 to further divert the coolant that will enter the first flow channel 112b in a targeted manner, and the spoiler 112f is used to block the coolant at different positions at different positions, so that the coolant can be more targeted to dissipate the heat of power devices with higher heat generation such as IGBT devices, so as to achieve the purpose of reducing the overall maximum junction temperature of power devices such as IGBT devices. After the coolant completes the heat dissipation of power devices such as IGBT devices, it flows into the liquid outlet flow channel 111b through the outlet of the first flow channel 112b. The liquid outlet channel 111b is arranged below the first channel 112b, so that the liquid outlet channel 111b also overlaps at an angle in the height direction D3, thereby further reducing the space usage in the height direction D3.

[0094] In other embodiments of the utility model, the shape of the second flow channel 112c can be adjusted differently according to different situations of entering the flow channel. The spoiler 112f on the flow channel plate 112 also needs to be changed to different positions, quantities and sizes according to different requirements for the rectification effect. The spoiler 112f can be a structure such as a rib or a guide column. The flow channel plate 112 is located between the first box body 110 and the second box body 130, and is used to separate the first chamber 102 and the second chamber 103 together with the partition 101, and connect the third flow channel 131 and the second flow channel 112c. In the design stage, the flow channel plate 112 can be adjusted according to the specific water channel structure of the first box body 110 and the second box body 130. The adjustment includes but is not limited to changes in the shape, size, thickness, direction, length of the flow channel plate 112 and deformation applications of the shape and area of ​​the through hole 111a.

[0095] The utility model also provides an electronic device (not shown). The electronic device may include the above-mentioned box.

[0096] According to the electronic device of the utility model, by applying the above-mentioned box body, the heat dissipation capacity of the electronic device can be improved.

[0097] For example, the electronic device may be configured as a motor controller (not shown). The electronic device may further include a first heat generating component. The first heat generating component may be configured as a power assembly. The power assembly here may include a power assembly or a power module of a device such as an IGBT device. By adopting this technical means, the cooling of the power assembly of the motor controller can be better achieved.

[0098] For example, the electronic device may be configured as a vehicle-mounted power supply (not shown). The electronic device may further include a second heating component. The second heating component may be configured as a heating element. The heating element here is, for example, an inductor, a capacitor, a MOS tube or other element or device. By adopting this technical means, the cooling of the power tube of the vehicle-mounted power supply can be better achieved.

[0099] The utility model also provides a power assembly (not shown). The power assembly may include the above-mentioned box.

[0100] According to the power assembly of the utility model, by applying the above-mentioned box or the above-mentioned electronic device, the stability of the operation of the power assembly can be improved.

[0101] For example, the housing 100 includes a first chamber 102 and a second chamber 103. The first chamber 102 is used to accommodate at least part of the first heat-generating component. The first heat-generating component is configured as a power component of a motor controller. The second chamber 103 is used to accommodate at least part of the second heat-generating component. The second heat-generating component is configured as a heating element of an on-board power supply. In this way, the first flow channel 112b can be used to cool the power component of the motor controller located in the first chamber 102. At the same time, the third flow channel 131 can be used to cool the heating element of the on-board power supply located in the second chamber 103.

[0102] The utility model also provides a vehicle (not shown). The vehicle may include the above-mentioned power assembly.

[0103] The vehicle according to the utility model can improve the stability of vehicle operation, help reduce the failure rate, and enable users to obtain a better use experience.

[0104] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0105] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A box (100), characterized in that: The housing (100) comprises a first flow channel (112b) and a second flow channel (112c) which are connected to each other, the first flow channel (112b) comprises a first bottom wall (112d), the second flow channel (112c) comprises a second bottom wall (112e), the first bottom wall (112d) and the second bottom wall (112e) are connected, and the second bottom wall (112e) is lower than the first bottom wall (112d) in a height direction (D3), and the first bottom wall (112d) is suitable for being arranged corresponding to a first heat-generating component.

2. The box (100) according to claim 1, characterized in that: The second flow channel (112c) is located upstream of the first flow channel (112b).

3. The box (100) according to claim 2, characterized in that: The inlet (112h) of the second flow channel (112c) is lower than the outlet (112j) of the second flow channel (112c).

4. The box (100) according to claim 2, characterized in that: The second flow channel (112c) extends along a first direction (D1), a size of an inlet (112h) of the second flow channel (112c) in the second direction (D2) is smaller than a size of an outlet of the second flow channel (112c) in the second direction (D2), and any two of the first direction (D1), the second direction (D2) and the height direction (D3) are perpendicular to each other.

5. The box (100) according to any one of claims 1 to 4, characterized in that: The housing (100) further comprises a third flow channel (131) and a receiving space (134); the third flow channel (131) is arranged around the receiving space (134); and the receiving space (134) is suitable for receiving a second heat generating component.

6. The box (100) according to any one of claims 1 to 4, characterized in that: The housing (100) further comprises a flow spoiler (112f), wherein the flow spoiler (112f) is arranged in the second flow channel (112c).

7. The box (100) according to any one of claims 1 to 4, characterized in that: The housing (100) comprises a cooling connection portion (112g) suitable for connecting the heat-generating component, and the cooling connection portion (112g) is arranged corresponding to the first flow channel (112b).

8. The box (100) according to claim 5, characterized in that: The box body (100) is provided with a partition (101), and the partition (101) is provided with a through hole (111a); the box body (100) further comprises a flow channel plate (112), the flow channel plate (112) is fixedly connected to the partition (101), and the through hole (111a) at least accommodates a part of the flow channel plate (112), and the flow channel plate (112) is formed with the first flow channel (112b) and the second flow channel (112c).

9. The box (100) according to claim 8, characterized in that: The second flow channel (112c) and the third flow channel (131) are connected at an inlet (112h) of the second flow channel (112c).

10. The box (100) according to claim 8, characterized in that: The housing (100) comprises a liquid outlet channel (111b), wherein the liquid outlet channel (111b) is connected to the first channel (112b). The liquid outlet channel (111b) comprises a first liquid outlet portion (111c) and a second liquid outlet portion (111d) connected in sequence, one end of the first liquid outlet portion (111c) is connected to an outlet portion (112i) of the first channel (112b), the other end of the first liquid outlet portion (111c) is extended along a first direction (D1), and the second liquid outlet portion (111d) extends along the height direction (D3), the first direction (D1) is perpendicular to the height direction (D3), In a plane perpendicular to the height direction (D3), the orthographic projection of the first flow channel (112b) and the orthographic projection of the first liquid outlet (111c) overlap.

11. An electronic device, characterized in that: The electronic device comprises a housing (100) according to any one of claims 1 to 10.

12. The electronic device according to claim 11, characterized in that: The electronic device is configured as a motor controller; The electronic device further includes a first heat-generating component configured as a power component.

13. The electronic device according to claim 11, characterized in that: The electronic device is configured as a vehicle-mounted power supply; The electronic device further includes a second heat-generating component configured as a heat-generating element.

14. A powertrain, characterized in that: The powertrain comprises a housing (100) according to any one of claims 1 to 10; Alternatively, the powertrain comprises an electronic device according to any one of claims 11 to 13.

15. The powertrain according to claim 14, characterized in that: The box body (100) comprises a partition (101), wherein the partition (101) divides the inner cavity of the box body (100) into a first chamber (102) and a second chamber (103). The first chamber (102) is used to accommodate at least part of a first heat-generating component, which is configured as a power component of a motor controller, and the second chamber (103) is used to accommodate at least part of a second heat-generating component, which is configured as a heating element of an on-board power supply.

16. A vehicle, characterized in that: The vehicle comprises the powertrain of claim 14 or 15.

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