A heat dissipation housing and a vehicle-mounted power supply

Abstract

This application discloses a heat dissipation housing and an on-board power supply, relating to the field of on-board power supply technology. The housing includes a base plate, a cover plate, and a flow guiding assembly. A flow channel protrusion is provided on one side of the base plate along a first direction. The outer surface of the flow channel protrusion serves as a heat dissipation surface for contacting and dissipating heat with a heat-generating device. The cover plate is disposed on the other side of the base plate. The flow channel protrusion, the cover plate, and the base plate form at least one heat dissipation flow channel. A cooling medium can be introduced into the heat dissipation flow channel, and the cooling medium in the heat dissipation flow channel indirectly exchanges heat with the heat-generating device through the flow channel protrusion. The flow guiding assembly is disposed within the heat dissipation flow channel and includes multiple flow guiding elements spaced apart along a second direction. The flow guiding elements include a first flow guiding element and a second flow guiding element. Along the first or third direction, the first and second flow guiding elements can be staggered, thereby forming an S-shaped flow channel inside the heat dissipation flow channel, extending the flow path of the cooling medium within the heat dissipation flow channel, and improving heat exchange efficiency.

Description

Technical Field

[0001] This application relates to the field of vehicle power technology, and more specifically, to a heat sink housing and a vehicle power supply. Background Technology

[0002] Vehicle power supplies typically use water cooling for heat dissipation, but the heat dissipation efficiency of current vehicle power supply heat sinks is low and cannot meet the heat dissipation requirements. Therefore, how to improve the heat dissipation efficiency of heat sinks has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The purpose of this application is to provide a heat dissipation housing to improve the heat dissipation efficiency of the heat dissipation housing.

[0004] Another objective of this application is to provide an on-board power supply including the aforementioned heat sink housing.

[0005] A heat dissipation housing, comprising:

[0006] The housing base plate has a flow channel protrusion protruding from one side along a first direction, and the outer surface of the flow channel protrusion is used to fit with the heating device.

[0007] A cover plate is disposed on the other side of the bottom plate of the housing. The cover plate and the bottom plate of the housing are distributed along the first direction, and the flow channel protrusion, the cover plate and the bottom plate of the housing form at least one heat dissipation flow channel for the flow of cooling medium. The heat dissipation flow channel has a liquid inlet and a liquid outlet.

[0008] A flow guiding assembly is disposed within the heat dissipation channel and includes a plurality of flow guiding elements arranged at intervals along a second direction. The flow guiding elements include a first flow guiding element and a second flow guiding element. The first flow guiding element and the second flow guiding element are arranged in a staggered manner along the first direction or the third direction, so that the interior of the heat dissipation channel forms an S-shaped flow channel. The first direction, the second direction and the third direction are set at angles to each other.

[0009] Optionally, in the heat dissipation housing described above, the first flow guide and the second flow guide are arranged alternately along the second direction.

[0010] Optionally, in the heat dissipation housing described above, the projected portions of the first flow guide and the second flow guide overlap along the second direction.

[0011] Optionally, in the above-mentioned heat dissipation housing, the heat dissipation channel includes a liquid inlet section and a liquid outlet section, both of which extend along the second direction, and the liquid inlet section is provided with the liquid inlet and the liquid outlet section is provided with the liquid outlet.

[0012] The heat dissipation channel further includes an intermediate section, which is disposed between the liquid inlet section and the liquid outlet section and communicates with the liquid inlet section and the liquid outlet section, and the flow guiding component is disposed in at least one of the liquid inlet section, the liquid outlet section and the intermediate section.

[0013] Optionally, in the above-mentioned heat dissipation housing, the liquid inlet section, the liquid outlet section, and the intermediate section are all plate-shaped structures, and the length direction of the liquid inlet section and the liquid outlet section extends along the second direction, the thickness direction of the liquid inlet section, the liquid outlet section, and the intermediate section extends along the first direction, and the width direction of the liquid inlet section, the liquid outlet section, and the intermediate section extends along the third direction.

[0014] The S-shaped flow channel bends and extends on the plane formed by the second direction and the third direction.

[0015] Optionally, in the above-described heat dissipation housing, along the first direction, the intermediate section is disposed at one end of the liquid inlet section and the liquid outlet section near the cover plate.

[0016] Optionally, in the above-described heat dissipation housing, the liquid inlet and the liquid outlet are located on the same side or different sides of the heat dissipation housing.

[0017] Optionally, in the above-mentioned heat dissipation housing, the middle section is bent, and the cooling medium outlet of the liquid inlet section and the cooling medium inlet of the liquid outlet section are located on the same side, wherein the bent shape includes a U-shaped bend.

[0018] Optionally, in the above-described heat dissipation housing, along the first direction, the extension lengths of both the liquid inlet section and the liquid outlet section are greater than the extension length of the intermediate section;

[0019] Alternatively, along the second direction, the cross-sectional area of ​​the inlet section is smaller than the cross-sectional area of ​​the outlet section.

[0020] Optionally, in the heat dissipation housing described above, the cross-sectional width of the heat dissipation channel gradually decreases along the protruding direction of the channel protrusion, wherein the cross-sectional width is the width of the projection of the heat dissipation channel onto the cover plate along the first direction.

[0021] Optionally, in the above-mentioned heat dissipation housing, there are multiple heat dissipation channels, and the cover plate surrounding each heat dissipation channel is an integral structure.

[0022] Optionally, in the above-described heat dissipation housing, the first airflow guide is connected to at least one of the housing bottom plate and the cover plate, and the second airflow guide is connected to at least one of the housing bottom plate and the cover plate.

[0023] Optionally, in the above-mentioned heat dissipation housing, in the inner wall of the heat dissipation channel, two inner walls arranged opposite to each other along the first direction are a heat dissipation bottom wall and a heat dissipation top wall, and the two inner walls located between the heat dissipation bottom wall and the heat dissipation top wall are heat dissipation side walls.

[0024] One of the first flow guide and the second flow guide is connected to the heat dissipation bottom wall and has a gap with the heat dissipation top wall; the other of the first flow guide and the second flow guide is connected to the heat dissipation top wall and has a gap with the heat dissipation bottom wall; or, the first flow guide and the second flow guide are respectively connected to one of the heat dissipation side walls and have a gap with the other heat dissipation side wall.

[0025] Optionally, in the above-mentioned heat dissipation housing, an insertion groove is provided on the inner wall of the heat dissipation channel, and the flow guide is inserted into the insertion groove.

[0026] Optionally, in the above-mentioned heat dissipation housing, the heat dissipation housing includes a plurality of housing side plates, the housing side plates and the housing bottom plate together form an installation space, and the installation space contains the flow channel protrusion;

[0027] The liquid inlet connector and the liquid outlet connector are disposed on the side plate of the housing, and the liquid inlet connector is connected to the liquid inlet of the heat dissipation channel, and the liquid outlet connector is connected to the liquid outlet of the heat dissipation channel.

[0028] Optionally, in the above-mentioned heat dissipation housing, the flow guiding component further includes at least one of a baffle block and a baffle groove. The baffle block and the baffle groove are both disposed in the heat dissipation channel, and the baffle block is connected to the inner wall of the heat dissipation channel, while the baffle groove is formed on the inner wall of the heat dissipation channel.

[0029] An on-board power supply includes a heating element and the aforementioned heat dissipation housing, wherein the heating element is arranged in close contact with at least the heat dissipation surface of the flow channel protrusion.

[0030] The heat dissipation housing provided in this application includes a housing base plate, a cover plate, and a flow guiding assembly. A flow channel protrusion is provided on one side of the housing base plate along a first direction. The outer surface of the flow channel protrusion is used as a heat dissipation surface for contacting and dissipating heat with the heat-generating device. The cover plate is disposed on the other side of the housing base plate, and the cover plate and the housing base plate are distributed along the first direction. The flow channel protrusion, the cover plate, and the housing base plate form at least one heat dissipation flow channel. The heat dissipation flow channel has an inlet and an outlet. Cooling media such as coolant and cold air can be introduced into the heat dissipation flow channel. The cooling media in the heat dissipation flow channel indirectly exchanges heat with the heat-generating device through the flow channel protrusion. The flow guiding assembly is disposed in the heat dissipation flow channel and includes a plurality of flow guiding elements arranged at intervals along a second direction. The flow guiding elements include a first flow guiding element and a second flow guiding element. The first flow guiding element and the second flow guiding element can be staggered along the first direction or the third direction, thereby forming an S-shaped flow channel inside the heat dissipation flow channel. The cooling medium flows along the S-shaped flow channel, thereby extending the flow path of the cooling medium in the heat dissipation flow channel and improving the heat exchange efficiency.

[0031] Compared with related technologies, the heat dissipation shell provided in this application increases the contact area between the cooling medium and the heat dissipation shell by setting a flow guiding component in the heat dissipation channel to form an S-shaped flow channel, while extending the residence time of the cooling medium in the heat dissipation channel, thereby improving the heat dissipation efficiency of the heat dissipation shell. Moreover, the structure is simple, and the shell body can still be manufactured by low-cost die casting or other methods.

[0032] The vehicle power supply provided in this application includes a heat-generating device and the aforementioned heat sink housing. The heat-generating device is arranged in close contact with the heat dissipation surface of the flow channel, thereby enabling heat exchange with the cooling medium within the heat dissipation flow channel. Because it includes the aforementioned heat sink housing, it also possesses the aforementioned structure and beneficial effects. Other structural details are referenced in related technologies and will not be elaborated upon here. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an exploded view of the first type of heat dissipation housing disclosed in the embodiments of this application;

[0035] Figure 2 A cross-section of the first type of heat dissipation housing disclosed in the embodiments of this application. Figure 1 ;

[0036] Figure 3 A cross-section of the first type of heat dissipation housing disclosed in the embodiments of this application. Figure 2 ;

[0037] Figure 4 This is a fluid diagram extracted from the first type of heat dissipation housing disclosed in the embodiments of this application;

[0038] Figure 5 This is an assembly diagram of the housing body and the airflow guiding component in the first type of heat dissipation housing disclosed in this application embodiment;

[0039] Figure 6 This is an isometric view of the housing body in the first type of heat dissipation housing disclosed in this application embodiment;

[0040] Figure 7 This is a cross-sectional view of the second type of heat dissipation housing disclosed in an embodiment of this application;

[0041] Figure 8 This is a cross-sectional view of the third type of heat dissipation housing disclosed in the embodiments of this application;

[0042] Figure 9 This is a cross-sectional view of the fourth type of heat dissipation housing disclosed in the embodiments of this application;

[0043] Figure 10 This is a cross-sectional view of the fifth type of heat dissipation housing disclosed in the embodiments of this application;

[0044] Figure 11 This is a cross-sectional view of the sixth type of heat dissipation housing disclosed in the embodiments of this application.

[0045] Wherein, 100 is the shell body, 101 is the heat dissipation channel, 101a is the liquid inlet section, 101b is the liquid outlet section, 101c is the middle section, 101d is the heat dissipation side wall, 101e is the heat dissipation top wall, 101f is the heat dissipation bottom wall, 102 is the installation space, 103 is the insertion slot, 110 is the shell bottom plate, 111 is the channel protrusion, 120 is the shell side plate, 200 is the cover plate, 300 is the flow guiding assembly, 310 is the first flow guiding component, 311 is the second flow guiding component, 320 is the turbulence block, 321 is the turbulence groove, 400 is the liquid inlet connector, and 410 is the liquid outlet connector. Detailed Implementation

[0046] The core of this application is to disclose a heat dissipation housing to improve the heat dissipation efficiency of the heat dissipation housing.

[0047] Another key aspect of this application is the disclosure of an on-board power supply that includes the aforementioned heat dissipation housing.

[0048] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the utility model as described in the claims. It should be noted that, for ease of description, only the parts relevant to the utility model are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0049] It should be noted that in the accompanying drawings of this application embodiment, the arrow labeled Z represents the first direction Z, the arrow labeled X represents the second direction X, and the arrow labeled Y represents the third direction Y. The first direction Z, the second direction X, and the third direction Y are perpendicular to each other. In practical applications, the above three directions can be set at an angle between each other, and the angle can be less than or greater than 90 degrees. The first direction Z, the second direction X, and the third direction Y are introduced to more clearly illustrate the structure and relative positional relationship of each component in the heat sink housing. In practical applications, the first direction Z, the second direction X, and the third direction Y may change depending on the placement of the heat sink housing. For example, the following description uses the first direction Z as the height direction of the heat sink housing, the second direction X as the length direction of the heat sink housing, and the third direction Y as the width direction of the heat sink housing. In addition, the dashed arrows in the accompanying drawings of this application embodiment indicate the flow direction of the cooling medium.

[0050] Furthermore, the term "along the first direction Z" as used in this application can mean that the angle between the first direction Z and the second direction Z is zero, or that the angle between the first direction Z and the second direction Z is less than or equal to 45 degrees, or less than 90 degrees. Similarly, the terms "along the second direction X" and "along the third direction Y" can be understood in the same way.

[0051] As the heat flux density of electronic components in automotive power supplies continues to increase, the requirements for heat dissipation performance are also becoming more stringent. However, in related technologies, the heat dissipation housings of automotive power supplies are mostly fabricated using a die-casting process to create the heat dissipation channels. Due to limitations in the manufacturing process, it is impossible to directly add fins to these channels, thus failing to increase the heat dissipation capacity of the heat dissipation housing and resulting in poor heat dissipation performance. Therefore, this application discloses a heat dissipation housing and an automotive power supply.

[0052] Combination Figure 1 , Figure 2 and Figure 6The heat dissipation housing disclosed in this application includes a housing base plate 110, a cover plate 200, and a flow guiding assembly 300. A flow channel protrusion 111 protrudes from one side of the housing base plate 110 along a first direction Z. The outer surface of the flow channel protrusion 111 serves as a heat dissipation surface for contacting and dissipating heat with a heat-generating device. The cover plate 200 is disposed on the other side of the housing base plate 110, and the cover plate 200 and the housing base plate 110 are distributed along the first direction. The flow channel protrusion 111, the cover plate 200, and the housing base plate 110 form at least one heat dissipation flow channel 101. The heat dissipation flow channel 101 has an inlet and an outlet, and coolant can flow into the heat dissipation flow channel 101. Cooling mediums such as cold air are used. The cooling medium within the heat dissipation channel 101 indirectly exchanges heat with the heat-generating device through the channel protrusions 111. A flow guiding assembly 300 is disposed within the heat dissipation channel 101 and includes multiple flow guiding elements spaced apart along the second direction X. Each flow guiding element includes a first flow guiding element 310 and a second flow guiding element 311. Along the first direction Z or the third direction Y, the first flow guiding element 310 and the second flow guiding element 311 can be staggered, thereby forming an S-shaped flow channel inside the heat dissipation channel 101. The cooling medium flows along the S-shaped flow channel, thus extending the flow path of the cooling medium within the heat dissipation channel 101 and improving heat exchange efficiency. For example, combined with… Figure 2 and Figure 5 It shows a technical solution in which the first guide member 310 and the second guide member 311 are staggered along the first direction Z to form an S-shaped flow channel. The interval between the first guide member 310 and the second guide member 311 along the second direction X allows the cooling medium to flow along the second direction X, and the staggered position of the first guide member 310 and the second guide member 311 along the first direction Z allows the cooling medium to flow along the first direction Z, so that the cooling medium flows along the S-shaped path in the heat dissipation flow channel 101. Figure 11 The diagram illustrates a technical solution where a first flow guide 310 and a second flow guide 311 are staggered along a third direction Y to form an S-shaped flow channel. The gap between the first flow guide 310 and the second flow guide 311 along the second direction X allows the cooling medium to flow along that direction. The staggered position of the first flow guide 310 and the second flow guide 311 along the third direction Y allows the cooling medium to flow along that direction Y, thus allowing the cooling medium to flow along an S-shaped path within the heat dissipation flow channel 101. The material of the flow guide assembly 300 includes, but is not limited to, plastics, metals, and other materials that do not react with the cooling medium. The flow channel protrusion 111 can be directly formed on the housing base plate 110 using methods such as die casting or injection molding.

[0053] Compared with related technologies, the heat dissipation shell disclosed in this application increases the contact area between the cooling medium and the heat dissipation shell by setting the flow guiding component 300 in the heat dissipation channel 101 to form an S-shaped flow channel, and at the same time prolongs the residence time of the cooling medium in the heat dissipation channel 101, thereby improving the heat dissipation efficiency of the heat dissipation shell. Moreover, the structure is simple, and the shell body 100 can still be prepared by low-cost die casting or other methods.

[0054] In practical applications, along the second direction X, second guide members 311 are set at both ends of a consecutive random number of first guide members 310, or first guide members 310 are set at both ends of a consecutive random number of second guide members 311. For example, a second guide member 311 can be set every two first guide members 310, or every three first guide members 310; two second guide members 311 can be set every other first guide member 310, or three second guide members 311 can be set every other first guide member 310.

[0055] In some embodiments, combined with Figure 2 Along the second direction X, the first guide member 310 and the second guide member 311 can be arranged alternately to optimize the flow path of the cooling medium, reduce the turbulence and eddy current phenomenon of the cooling medium during the flow process, reduce the pressure loss of the cooling medium, and thus improve the heat dissipation efficiency.

[0056] In practical applications, taking the first guide element 310 and the second guide element 311 as an example, which are arranged at intervals along the second direction X and staggered in the first direction Z, the overlap rate of the projections of the first guide element 310 and the second guide element 311 along the second direction X can be zero. Accordingly, when the cooling medium flows to the first guide element 310, it will be blocked by the first guide element 310, and then flow along the first direction Z toward the direction where the second guide element 311 is located, and then flow along the second direction X, and then be blocked by the second guide element 311, and then flow along the first direction Z toward the direction where the first guide element 310 is located, forming an S-shaped flow path similar to a square wave.

[0057] Combination Figure 2 In order to further improve the heat exchange efficiency, the first guide element 310 and the second guide element 311 can be arranged in an alternating manner along the first direction Z or the third direction Y. That is, along the second direction X, the projections of the first guide element 310 and the second guide element 311 can have a certain overlap rate, which can effectively extend the heat exchange path of the cooling medium and thus improve the heat exchange efficiency.

[0058] In some embodiments disclosed in this application, in order to fully realize heat exchange, combined with Figure 5The heat dissipation channel 101 includes an inlet section 101a and an outlet section 101b, both of which extend along the second direction X. The inlet section 101a is provided with the aforementioned inlet port, and the outlet section 101b is provided with the aforementioned outlet port. The heat dissipation channel 101 also includes an intermediate section 101c, which is located between the inlet section 101a and the outlet section 101b and is connected to both the inlet section 101a and the outlet section 101b. The flow guiding component 300 can be arranged in at least one of the inlet section 101a, the outlet section 101b, and the intermediate section 101c, allowing for flexible arrangement. When the flow guiding component 300 is simultaneously arranged in the inlet section 101a, the outlet section 101b, and the intermediate section 101c, it can effectively extend the heat exchange path of the cooling medium and improve the heat exchange efficiency.

[0059] For example, in combination Figure 3 and Figure 6 The aforementioned inlet section 101a, outlet section 101b, and intermediate section 101c can all be plate-like structures, and both the inlet section 101a and the outlet section 101b extend along the second direction X, that is...

[0060] The length direction of both the inlet section 101a and the outlet section 101b extends along the second direction X, and the thickness direction of the inlet section 101a, the outlet section 101b and the intermediate section 101c extends along the first direction. The width direction of the inlet section 101a, the outlet section 101b and the intermediate section 101c extends along the third direction Y. The length dimension of the inlet section 101a is usually greater than the width and thickness dimensions of the inlet section 101a. The length dimension of the outlet section 101b is usually greater than the width and thickness dimensions of the inlet section 101a. The extension length dimension of the intermediate section 101c along the second direction X is usually greater than the width and thickness dimensions of the intermediate section 101c. The S-shaped flow channel can bend and extend on the plane formed by the second direction X and the third direction Y. The shape of the flow channel protrusion 111 corresponds to the shape of the liquid inlet section 101a, the liquid outlet section 101b and the intermediate section 101c. The plate-shaped liquid inlet section 101a, liquid outlet section 101b and intermediate section 101c can make the corresponding flow channel protrusion 111 have sufficient outer surface to fit and dissipate heat with the heat-generating device, thus ensuring the heat dissipation efficiency of the heat-generating device.

[0061] For ease of representation and understanding, along the first direction Z, the end of the liquid inlet section 101a closest to the cover plate 200 is defined as the first end, the end of the liquid inlet section 101a furthest from the cover plate 200 is defined as the second end, and the middle portion between the first end and the second end of the liquid inlet section 101a is defined as the middle section of the liquid inlet section 101a; along the first direction Z, the end of the liquid outlet section 101b closest to the cover plate 200 is defined as the first end, the end of the liquid outlet section 101b furthest from the cover plate 200 is defined as the second end, and the middle portion of the liquid outlet section 101b is defined as the middle section. The middle position between the first end of the inlet section 101a and the second end of the outlet section 101b is the middle section of the outlet section 101b; then the middle section 101c can be set between the first end of the inlet section 101a and the first end of the outlet section 101b, or the middle section 101c can be set between the second end of the inlet section 101a and the second end of the outlet section 101b, or the middle section 101c can be set between the middle section of the inlet section 101a and the middle section of the outlet section 101b. The arrangement is flexible and exemplary. Figure 3 The image shows a technical solution in which an intermediate section 101c is disposed between the first end of the liquid inlet section 101a and the first end of the liquid outlet section 101b. In this embodiment, the cover plate 200 can be a planar structure, which facilitates production and assembly. At the same time, when the extension lengths of the liquid inlet section 101a and the liquid outlet section 101b are both greater than the extension length of the intermediate section 101c along the first direction Z, a sufficiently large installation space 102 can be formed between the liquid inlet section 101a and the liquid outlet section 101b for the installation of the heating device.

[0062] The cooling medium outlet of the inlet section 101a and the cooling medium inlet of the outlet section 101b can be located on the same side or different sides of the heat dissipation shell. That is, the inlet and outlet of the heat dissipation channel 101 can be located on the same side or different sides of the heat dissipation shell, allowing for flexible arrangement based on the actual application scenario. For example, combined with... Figure 4 and Figure 5 It shows a technical solution in which the inlet and outlet of the heat dissipation channel 101 are located on the same side of the heat dissipation housing. This solution facilitates the arrangement of pipes for entering and exiting liquid into the heat dissipation channel 101.

[0063] The intermediate section 101c can be a straight or bent structure. When the cooling medium outlet of the liquid inlet section 101a and the cooling medium inlet of the liquid outlet section 101b are located on the same side, the bent shape of the intermediate section 101c can include a U-shaped bend, a sawtooth bend, an S-shaped bend, etc. Figure 5 The diagram shows a technical solution where the middle section 101c is U-shaped and has a simple structure. The bottom of the U-shaped structure of the middle section 101c extends towards the liquid inlet and liquid outlet so that the middle section 101c has sufficient extension length, thereby ensuring the heat exchange path length of the cooling medium and the heat exchange area between the flow channel protrusion 111 and the heat-generating device.

[0064] Combination Figure 10 Along the first direction Z, the extension lengths of the inlet section 101a and the outlet section 101b can both be greater than the extension length of the middle section 101c. This ensures that the side of the flow channel protrusion 111 corresponding to the inlet section 101a near the middle section 101c has sufficient outer surface for heat exchange with the heating element, and that the side of the flow channel protrusion 111 corresponding to the outlet section 101b near the middle section 101c has sufficient outer surface for heat exchange with the heating element, thus guaranteeing the heat dissipation effect of the heat sink. Figure 3 and Figure 6 A heat-generating device with high heat dissipation requirements can be arranged at the middle position of the flow channel protrusion 111 corresponding to the liquid inlet section 101a and the liquid outlet section 101b. This heat-generating device can exchange heat with the cooling medium in the liquid inlet section 101a, the middle section 101c and the liquid outlet section 101b at the same time.

[0065] Along the flow direction of the cooling medium, when the cross-sectional dimensions of the heat dissipation channel 101 remain consistent, the inlet end of the heat dissipation channel 101 has a high flow velocity and low temperature. After absorbing the heat dissipated by the heat-generating device, the outlet end of the heat dissipation channel 101 experiences a temperature increase, leading to inconsistent local heat dissipation effects in the heat sink. Therefore, a further optimization scheme is proposed: along the flow direction of the cooling medium, the cross-sectional area of ​​the heat dissipation channel 101 gradually increases or increases segment by segment. This change in the cross-sectional dimensions of the heat dissipation channel 101 causes a change in pressure. Regions with high pressure have high flow velocity and low temperature, while regions with low pressure have slow flow velocity. This extends the residence time of the cooling medium at the outlet end of the heat dissipation channel 101, thus extending its heat exchange time with the heat-generating device, thereby ensuring consistent cooling effects at both the inlet and outlet ends of the heat dissipation channel 101. For example, combined with... Figure 10 Along the second direction X, the cross-sectional area of ​​the inlet section 101a may be smaller than the cross-sectional area of ​​the outlet section 101b; or, the cross-sectional area of ​​the intermediate section 101c may be larger than the cross-sectional area of ​​the inlet section 101a and smaller than the cross-sectional area of ​​the outlet section 101b.

[0066] When the housing body 100 is manufactured using a die-casting process, a corresponding draft angle needs to be designed. The cross-sectional width is defined as the width of the projection of the heat dissipation channel 101 along the first direction Z onto the cover plate 200, or the extension length of the heat dissipation channel 101 along the third direction Y is defined as the cross-sectional width. Figure 3 Along the protruding direction of the flow channel protrusion 111, the cross-sectional width of the heat dissipation flow channel 101 gradually decreases, or in other words, along the protruding direction of the flow channel protrusion 111, the cross-sectional widths of the liquid inlet section 101a, the liquid outlet section 101b, and the intermediate section 101c all gradually decrease.

[0067] When there are multiple heat dissipation channels 101, the cover plate 200 surrounding each heat dissipation channel 101 can be an integral structure or a split structure. An integral structure is convenient for assembly and production.

[0068] In some embodiments, combined with Figure 1 The cover plate 200 is sealed to the bottom plate 110 of the housing, and the connection method includes, but is not limited to, bonding, snap-fitting, and plugging. Figure 2 The first flow guide 310 can be connected to the housing body 100, or to the cover plate 200, or simultaneously to both the housing body 100 and the cover plate 200. The second flow guide 311 can be connected to the housing body 100, or to the cover plate 200, or simultaneously to both the housing body 100 and the cover plate 200. The connection methods include, but are not limited to, bonding, snap-fitting, and plugging. The structure is simple and easy to assemble. For example, each of the first flow guides 310 can be directly connected to or integrally formed on the cover plate 200, and during the assembly process, it can be directly inserted into the heat dissipation channel 101 along with the installation of the cover plate 200 to complete the assembly.

[0069] In some embodiments disclosed in this application, combined with Figure 2 and Figure 4 , Figure 4 The image shows a fluid image extracted from the heat dissipation channel 101, with each label indicating the location of the fluid within the heat dissipation channel 101. Within the inner wall of the heat dissipation channel 101, two inner walls arranged opposite each other along the first direction Z are defined as the bottom heat dissipation wall 101f and the top heat dissipation wall 101e. The two inner walls located between the bottom heat dissipation wall 101f and the top heat dissipation wall 101e are defined as the side heat dissipation walls 101d. One of the first guide member 310 and the second guide member 311 can be connected to the bottom heat dissipation wall 101f and has a gap with the top heat dissipation wall 101e. The other of the first guide member 310 and the second guide member 311 can be connected to the top heat dissipation wall 101e and has a gap with the bottom heat dissipation wall 101f. These gaps allow the cooling medium to pass through, thereby forming an S-shaped flow channel in the XZ plane. During the flow within the heat dissipation channel 101, the cooling medium reciprocates along the first direction Z. In this embodiment, each flow guide can be a plate-shaped structure, and the flow guide can be connected to the cover plate 200 and the housing body 100 by means of snap-fit, adhesive, slotting, or other methods, with flexible arrangement.

[0070] In other embodiments disclosed in this application, combined with Figure 11In the inner wall of the heat dissipation channel 101, the two inner walls located between the bottom heat dissipation wall 101f and the top heat dissipation wall 101e are defined as heat dissipation sidewalls 101d. The first guide member 310 and the second guide member 311 are respectively connected to one heat dissipation sidewall 101d and have a gap between themselves and the other heat dissipation sidewall 101d. This gap allows the cooling medium to pass through, forming an S-shaped flow channel in the XY plane of the heat dissipation channel 101. During the flow within the heat dissipation channel 101, the cooling medium reciprocates along the third direction Y. In this embodiment, the guide assembly 300 may include guide columns, which can be connected to the heat dissipation sidewall 101d by snap-fit, adhesive, slotted embedding, or other methods, allowing for flexible arrangement.

[0071] When the housing body 100 has a draft angle, a guide component of corresponding size can be manufactured according to the change of the draft angle, directly inserted into the heat dissipation channel 101, and snapped together for assembly. The structure is simple and assembly is convenient. For example, combined with... Figure 9 A plug-in groove 103 is provided on the heat dissipation sidewall 101d. The plug-in groove 103 can extend along the first direction Z. The flow guide and the plug-in groove 103 can be inserted and matched, which is reliable in positioning and convenient in assembly.

[0072] The housing body 100 specifically includes the aforementioned housing base plate 110 and multiple housing side plates 120 connected to the housing base plate 110. The housing base plate 110 and each housing side plate 120 together form an installation space 102. The flow channel protrusion 111 and the heating device are both arranged within this installation space 102. The liquid inlet connector 400 communicates with the liquid inlet of the heat dissipation flow channel 101, and the liquid outlet connector 410 communicates with the liquid outlet of the heat dissipation flow channel 101. The liquid inlet connector 400 and the liquid outlet connector 410 are used to connect and conduct with the liquid inlet pipe and the liquid outlet pipe, respectively, so as to connect the heat dissipation flow channel 101 to the heat dissipation pipeline. The aforementioned liquid inlet connector 400 and liquid outlet connector 410 can be set on the same or different housing side plates 120, and the arrangement is flexible. This application embodiment does not limit this. For example, two shell side plates 120 arranged opposite each other along the second direction X are defined as the first side plate and the second side plate, respectively. A liquid inlet connector 400 and a liquid outlet connector 410 can be provided on either the first or second side plate. That is, the heat dissipation channels 101 can have liquid inlet and outlet on the same side or on opposite sides, which can be adjusted according to actual conditions. The liquid inlet connector 400 and the liquid outlet connector 410 can be an integral or separate structure with the shell side plate 120. When multiple heat dissipation channels 101 are provided on a shell bottom plate 110, each heat dissipation channel 101 can correspond to one liquid inlet connector 400 and one liquid outlet connector 410, or each heat dissipation channel 101 can share the same liquid inlet connector 400 and liquid outlet connector 410. This shared solution can reduce the number of external interfaces on the heat dissipation shell, reduce the probability of cooling medium leakage, and improve the system's sealing and reliability.

[0073] In some embodiments, the flow guiding assembly 300 further includes a turbulence structure for agitating the cooling medium flowing through the heat dissipation channel 101, thereby improving the heat transfer effect. Specifically, in conjunction with Figure 7 and Figure 8 The turbulence-disrupting structure includes at least one of a turbulence block 320 and a turbulence groove 321. Both the turbulence block 320 and the turbulence groove 321 are disposed within the heat dissipation channel 101, with the turbulence block 320 connected to the inner wall of the heat dissipation channel 101 and the turbulence groove 321 formed on the inner wall of the heat dissipation channel 101. The turbulence block 320 can be die-cast into the housing body 100 and then assembled into the heat dissipation channel 101; the turbulence groove 321 can be grooved after the housing body 100 is die-cast. The cross-sections of the aforementioned turbulence block 320 and turbulence groove 321 can be circular, rhomboid, or other shapes, and this embodiment does not limit this. Further, in conjunction with Figure 8 Along the flow direction of the cooling medium, two adjacent turbulence structures are staggered to fully play the role of turbulence, thereby enhancing the heat dissipation effect.

[0074] The vehicle power supply disclosed in this application includes a heat-generating device and the aforementioned heat sink housing. The heat-generating device is at least in contact with the heat dissipation surface of the flow channel protrusion 111, thereby exchanging heat with the cooling medium within the heat dissipation flow channel 101. Furthermore, the heat-generating device can also be in contact with the housing base plate 110, housing side plate 120, etc., for easy assembly. The heat-generating device may include power devices such as IGBTs (Insulated Gate Bipolar Transistors), thyristors, and MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors), as well as magnetic devices such as coils, inductors, resistors, and capacitors. Because it includes the aforementioned heat sink housing, it also possesses the aforementioned structure and beneficial effects. Other structures are described in reference to related technologies and will not be repeated here.

[0075] Furthermore, after the heating element is assembled within the mounting space 102, thermally conductive materials such as thermally conductive adhesive can be potted into the mounting space 102 to achieve insulation and isolation from the outside environment. This also reduces the thermal resistance of heat transfer from the housing side plate 120 to the outside, thereby improving heat dissipation efficiency. The vehicle power supply disclosed in this application embodiment can be connected independently to a liquid cooling pipe for liquid cooling, or it can be connected in series with devices such as a motor controller to form a liquid cooling channel; this application embodiment does not impose any limitations on this.

[0076] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed. Additionally, "a plurality of" means two or more, and "at least one" can mean one, two, or more, unless otherwise expressly specified.

[0077] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment unless explicitly excluded by another embodiment. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat dissipation housing, characterized in that, include: The housing base plate (110) has a flow channel protrusion (111) protruding from one side along a first direction, and the outer surface of the flow channel protrusion (111) is used to fit with the heating device. A cover plate (200) is disposed on the other side of the housing bottom plate (110). The cover plate (200) and the housing bottom plate (110) are distributed along the first direction, and the flow channel protrusion (111), the cover plate (200) and the housing bottom plate (110) form at least one heat dissipation flow channel (101) for the flow of cooling medium. The heat dissipation flow channel (101) has a liquid inlet and a liquid outlet. A flow guiding assembly (300) is disposed within the heat dissipation channel (101) and includes a plurality of flow guiding elements arranged at intervals along a second direction. The flow guiding elements include a first flow guiding element (310) and a second flow guiding element (311). The first flow guiding element (310) and the second flow guiding element (311) are arranged in a staggered manner along the first direction or the third direction, so that an S-shaped flow channel heat dissipation channel (101) is formed inside the heat dissipation channel (101). The first direction, the second direction and the third direction are set at angles to each other.

2. The heat dissipation housing as described in claim 1, characterized in that, Along the second direction, the first guide member (310) and the second guide member (311) are arranged alternately.

3. The heat dissipation housing as described in claim 1, characterized in that, Along the second direction, the projected portions of the first guide (310) and the second guide (311) overlap.

4. The heat dissipation housing as described in any one of claims 1-3, characterized in that, The heat dissipation channel (101) includes an inlet section (101a) and an outlet section (101b), both of which extend along the second direction. The inlet section (101a) is provided with the inlet port, and the outlet section (101b) is provided with the outlet port. The heat dissipation channel (101) further includes an intermediate section (101c), which is disposed between the liquid inlet section (101a) and the liquid outlet section (101b) and communicates with the liquid inlet section (101a) and the liquid outlet section (101b). The flow guiding component (300) is disposed within at least one of the liquid inlet section (101a), the liquid outlet section (101b) and the intermediate section (101c).

5. The heat dissipation housing as described in claim 4, characterized in that, The inlet section (101a), the outlet section (101b), and the intermediate section (101c) are all plate-shaped structures. The length direction of the inlet section (101a) and the outlet section (101b) extends along the second direction, the thickness direction of the inlet section (101a), the outlet section (101b), and the intermediate section (101c) extends along the first direction, and the width direction of the inlet section (101a), the outlet section (101b), and the intermediate section (101c) extends along the third direction. The S-shaped flow channel bends and extends on the plane formed by the second direction and the third direction.

6. The heat dissipation housing as described in claim 4, characterized in that, Along the first direction, the intermediate section (101c) is disposed at one end of the liquid inlet section (101a) and the liquid outlet section (101b) near the cover plate (200).

7. The heat dissipation housing as described in claim 4, characterized in that, The liquid inlet and the liquid outlet are located on the same side or different sides of the heat dissipation housing.

8. The heat dissipation housing as described in claim 4, characterized in that, The intermediate section (101c) is bent, and the cooling medium outlet of the liquid inlet section (101a) and the cooling medium inlet of the liquid outlet section (101b) are located on the same side. The bent shape includes a U-shaped bend.

9. The heat dissipation housing as described in claim 4, characterized in that, Along the first direction, the extension lengths of both the inlet section (101a) and the outlet section (101b) are greater than the extension length of the intermediate section (101c). Alternatively, along the second direction, the cross-sectional area of ​​the inlet section (101a) is smaller than the cross-sectional area of ​​the outlet section (101b).

10. The heat dissipation housing as described in any one of claims 1-3, characterized in that, Along the protruding direction of the channel protrusion (111), the cross-sectional width of the heat dissipation channel (101) gradually decreases, wherein the cross-sectional width is the width of the projection of the heat dissipation channel (101) onto the cover plate (200) along the first direction.

11. The heat dissipation housing as described in any one of claims 1-3, characterized in that, There are multiple heat dissipation channels (101), and the cover plate (200) surrounding each heat dissipation channel (101) is an integral structure.

12. The heat dissipation housing as described in any one of claims 1-3, characterized in that, The first flow guide (310) is connected to at least one of the housing bottom plate (110) and the cover plate (200), and the second flow guide (311) is connected to at least one of the housing bottom plate (110) and the cover plate (200).

13. The heat dissipation housing as described in any one of claims 1-3, characterized in that, In the inner wall of the heat dissipation channel (101), two inner walls arranged opposite to each other along the first direction are a heat dissipation bottom wall (101f) and a heat dissipation top wall (101e), and two inner walls located between the heat dissipation bottom wall (101f) and the heat dissipation top wall (101e) are heat dissipation side walls (101d). One of the first flow guide (310) and the second flow guide (311) is connected to the heat dissipation bottom wall (101f) and has a gap with the heat dissipation top wall (101e); the other of the first flow guide (310) and the second flow guide (311) is connected to the heat dissipation top wall (101e) and has a gap with the heat dissipation bottom wall (101f); or, the first flow guide (310) and the second flow guide (311) are respectively connected to one of the heat dissipation side walls (101d) and have a gap with the other heat dissipation side wall (101d).

14. The heat dissipation housing as described in any one of claims 1-3, characterized in that, The inner wall of the heat dissipation channel (101) is provided with a plug groove (103), and the flow guide is inserted into the plug groove (103).

15. The heat dissipation housing as described in any one of claims 1-3, characterized in that, The heat dissipation housing includes multiple housing side plates (120), the housing side plates (120) and the housing bottom plate (110) together form an installation space (102), and the installation space (102) contains the flow channel protrusion (111). The liquid inlet connector (400) and the liquid outlet connector (410) are disposed on the side plate (120) of the housing, and the liquid inlet connector (400) is connected to the liquid inlet of the heat dissipation channel (101), and the liquid outlet connector (410) is connected to the liquid outlet of the heat dissipation channel (101).

16. The heat dissipation housing as described in any one of claims 1-3, characterized in that, The flow guiding component (300) further includes at least one of a baffle block (320) and a baffle groove (321), both of which are disposed within the heat dissipation channel (101), and the baffle block (320) is connected to the inner wall of the heat dissipation channel (101), and the baffle groove (321) is formed on the inner wall of the heat dissipation channel (101).

17. A vehicle-mounted power supply, characterized in that, It includes a heat-generating device and a heat-dissipating housing as described in any one of claims 1-16, wherein the heat-generating device is arranged in contact with the heat-dissipating surface of the flow channel protrusion (111).

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