Liquid cooled busbar assembly

Abstract

A liquid cooled busbar assembly is disclosed and includes a first busbar, a second busbar, an insulation element and a water cooling plate. The first busbar is extended along a first direction and includes a first connection interface configured to be electrically connected with an electrical device to supply power to the electrical device. The second busbar is extended along the first direction and includes a second connection interface configured to be electrically connected with the electrical device to provide a power loop path for the electrical device. The insulation element is disposed between the first connection interface and the second connection interface to electrically insulate the first connection interface and the second connection interface. The water cooling plate is in contact with rear ends of the first busbar and the second busbar at the same time, electrically insulated from the first busbar and the second busbar, and including a liquid channel extended along the first direction. The liquid channel allows liquid coolant to flow therethrough to cool the first busbar and the second busbar.

Description

[Technical Field]

[0001] This case relates to a bus structure, particularly a liquid-cooled bus assembly, which, through the liquid channel design of the water-cooled plate, allows the heat dissipation surface to be directly thermally coupled to two busbars separated by insulating components, effectively improving heat dissipation efficiency. [Previous Technology]

[0002] With the rapid development of information technology, data center applications have become increasingly widespread and important. Typically, a data center's system rack contains multiple servers. To meet the power supply needs of these multiple servers, most existing data centers use a system bus structure to allow multiple bus connectors to be plugged into each server, enabling the system bus to power each server. However, when the system bus supplies high current to multiple servers for extended periods, a large amount of heat is generated, which affects the power transmission efficiency and lifespan of the system bus.

[0003] In the prior art, although two sets of water-cooled plate structures can be connected in series on both sides of the system busbar for heat dissipation, different water-cooled plate structures need to be connected in series with external hoses. Although heat dissipation effect can be achieved, its cost and overall cold plate volume are difficult to be adopted by the market, and it also increases the risk of coolant leakage.

[0004] In view of this, it is necessary to provide a liquid-cooled bus assembly that, through the liquid channel design of the water-cooled plate, allows the heat dissipation surface to be directly thermally coupled to the two busbars separated by insulating components, thereby effectively improving heat dissipation efficiency and addressing the deficiencies of the prior art. [Summary of the Invention]

[0005] The purpose of this invention is to provide a liquid-cooled busbar assembly that, through the liquid channel design of the water-cooled plate, allows the heat dissipation surface to be directly thermally coupled to the two busbars separated by insulating components, thereby effectively improving heat dissipation efficiency.

[0006] Another object of this invention is to provide a liquid-cooled busbar assembly. For a vertically extending liquid-cooled busbar assembly, this invention provides a single-structure water-cooled plate that is thermally coupled to the opposing inner surfaces of two busbars, or thermally coupled to the rear ends of two busbars, and maintains electrical insulation from the two busbars. At least one liquid channel of the water-cooled plate allows liquid coolant to flow through, simultaneously cooling the heat generated by the two busbars. When the single-structure water-cooled plate is thermally coupled to the rear ends of the two busbars with its front end face, the connection interfaces included at the front ends of the two busbars can jointly form a plug-in interface through insulating elements, allowing for electrical connection of multiple vertically arranged electrical components. The inlet and outlet of the liquid coolant are connected by the rear end face of the water-cooled plate, not limited to bottom or top, and do not interfere with the connection between the electrical components and the plug-in interface. Furthermore, when the single-structure water-cooled plate is sandwiched between two busbars, the design of the water-cooled plate can include a first liquid channel and a second liquid channel to simultaneously cool the two busbars. The liquid coolant flows in opposite directions in the first and second liquid channels, and can be connected, for example, at the top of the water-cooled plate. The first and second liquid channels can be formed by two connected pipes arranged side-by-side, or by a flat or bent partition dividing the internal space of the water-cooled plate to form the first and second liquid channels. In this way, a single-structure water-cooled plate can provide effective heat dissipation between the two busbars. Furthermore, the inlet and outlet of the liquid coolant are connected by the long side of the water-cooled plate, without interfering with the connection between electrical components and the front-end plug-in interfaces of the two busbars. Moreover, the liquid-cooled busbar assembly of this invention utilizes a cooling system combining a single-structure water-cooled plate with two busbars, occupying a small space. The inlet and outlet positions do not interfere with the use of the front-end plug-in interfaces, and it is easy to rebuild a shell to provide structural support and protection. Of course, this invention is not limited to these limitations.

[0007] To achieve the aforementioned objective, this application provides a liquid-cooled bus assembly, including a first bus, a second bus, an insulating element, and a water-cooling plate. The first bus extends along a first direction and includes a first connection interface, configured to be electrically connected to an electrical component to supply power to the electrical component. The second bus extends along the first direction and includes a second connection interface, configured to be electrically connected to the electrical component to provide a power return path for the electrical component. The insulating element is disposed between the first and second connection interfaces to electrically insulate the first and second connection interfaces from each other. The water-cooling plate simultaneously contacts the rear ends of both the first and second bus and is electrically insulated from both the first and second bus, and includes at least one liquid channel extending along the first direction, wherein the at least one liquid channel allows liquid coolant to flow through to cool the first and second bus.

[0008] In one embodiment, the insulating member extends along a first direction, and the first connection interface and the second connection interface together form a plug-in interface through the insulating member for connecting electrical components.

[0009] In one embodiment, the liquid-cooled manifold assembly further includes an inlet and an outlet, wherein the inlet and the outlet are respectively disposed adjacent to the top and top of the water-cooled plate and are in communication with at least one liquid channel, and are configured to introduce or export liquid coolant into or out of at least one liquid channel.

[0010] In one embodiment, the water-cooled plate includes a first long side plate and a second long side plate. The first long side plate and the second long side plate are arranged at intervals from each other in a second direction, which is perpendicular to the first direction. At least one liquid channel is formed between the first long side plate and the second long side plate. The first long side plate is thermally connected to the rear end of the first busbar and the second busbar. The inlet and outlet are parallel to the second direction and are connected to the at least one liquid channel through the second long side plate.

[0011] In one embodiment, the liquid-cooled bus assembly further includes a housing, wherein the housing extends along a first direction around the first bus, the second bus and the water-cooling plate, and has an opening end facing a second direction perpendicular to the first direction, wherein the opening end is spatially opposite to the first connection interface and the second connection interface, allowing the first connection interface and the second connection interface to be exposed through the opening end.

[0012] In one embodiment, the housing includes a pair of spacers, which are respectively disposed on two opposite sides of the opening end. The first connection interface and the second connection interface together form a plug-in interface through the insulating member and the pair of spacers, facing the second direction, for connecting electrical components.

[0013] To achieve the aforementioned objective, this application further provides a liquid-cooled bus assembly, including a first bus, a second bus, an insulating element, and a water-cooling plate. The first bus extends along a first direction and includes a first connection interface, configured to be electrically connected to an electrical component to supply power to the electrical component. The second bus extends along the first direction and includes a second connection interface, configured to be electrically connected to the electrical component to provide a power return path for the electrical component. The insulating element is disposed between the first and second connection interfaces to electrically insulate the first and second connection interfaces from each other. The water-cooling plate is disposed between the first and second bus and electrically insulated from both the first and second bus, and includes at least one liquid channel extending along the first direction, wherein the at least one liquid channel allows liquid coolant to flow through to cool the first and second bus.

[0014] In one embodiment, the insulating member extends along a first direction, and the first connection interface and the second connection interface together form a plug-in interface through the insulating member for connecting electrical components.

[0015] In one embodiment, the water-cooled plate includes a first long side plate and a second long side plate, parallel to the second direction, and at least one liquid channel is located between the first long side plate and the second long side plate, wherein the first long side plate and the second long side plate respectively form a first heat dissipation surface and a second heat dissipation surface, which are thermally connected to the sides of the first busbar and the second busbar, wherein the first heat dissipation surface and the second heat dissipation surface are two surfaces opposite to each other in the third direction, the third direction is perpendicular to the second direction and perpendicular to the first direction.

[0016] In one embodiment, the water-cooled plate further includes a partition disposed in at least one liquid channel, parallel to the first long side plate and the second long side plate, dividing the at least one liquid channel into a first liquid channel and a second liquid channel.

[0017] In one embodiment, the water-cooled plate further includes a partition plate disposed in at least one liquid channel, bent and connected between the first long side plate and the second long side plate, dividing the at least one liquid channel into a first liquid channel and a second liquid channel.

[0018] In one embodiment, the water-cooled plate further includes an inlet and an outlet disposed adjacent to the bottom end of the water-cooled plate, which are respectively connected to the first liquid channel and the second liquid channel through the first long side plate and the second long side plate.

[0019] In one embodiment, the water-cooled plate further includes a top cover and a bottom cover, which are detachably connected to the top cover and the bottom cover of the water-cooled plate, respectively, wherein the top cover allows the first liquid channel and the second liquid channel to communicate with each other, and the bottom cover blocks the first liquid channel and the second liquid channel.

[0020] In one embodiment, the liquid-cooled bus assembly further includes a housing, wherein the housing extends along a first direction around the first bus, the second bus and the water-cooling plate, and has an opening end facing a second direction perpendicular to the first direction, wherein the opening end is spatially opposite to the first connection interface and the second connection interface, allowing the first connection interface and the second connection interface to be exposed through the opening end.

[0021] In one embodiment, the housing includes a pair of spacers, which are respectively disposed on two opposite sides of the opening end. The first connection interface and the second connection interface together form a plug-in interface through the insulating member and the pair of spacers, facing the second direction, for connecting electrical components.

[0022] To achieve the aforementioned objective, this invention further provides a liquid-cooled bus assembly, including a water-cooled plate, a first bus, and a second bus. The water-cooled plate extends along a first direction and includes at least one liquid channel allowing liquid coolant to flow through and forming at least one heat dissipation surface. The first bus extends along the first direction, is thermally coupled to at least one heat dissipation surface, and has a first connection interface, wherein the first connection interface is configured to be electrically connected to an electrical component to supply power to the electrical component. The second bus extends along the first direction, is thermally coupled to at least one heat dissipation surface, and has a second connection interface, wherein the second connection interface is configured to be electrically connected to an electrical component to provide a power circuit path for the electrical component, wherein the first connection interface and the second connection interface are insulated by an insulating member and together form a plug-in interface for connecting the electrical component. The bottom end of the water-cooled plate includes an inlet and an outlet, allowing liquid coolant to flow in from the inlet, flow through the heat dissipation surface, and then flow out of the water-cooled plate from the outlet.

[0023] In one embodiment, the insulating member extends along a first direction, and the first connection interface and the second connection interface together form a plug-in interface through the insulating member for connecting electrical components.

[0024] In one embodiment, at least one liquid channel includes a first liquid channel and a second liquid channel, the first liquid channel and the second liquid channel are arranged along a second direction, located between a first busbar and a second busbar, and electrically insulated from the first busbar and the second busbar, wherein the liquid coolant flows in opposite directions in the first liquid channel and the second liquid channel.

[0025] In one embodiment, the water-cooled plate further includes a top cover detachably connected to the top of the water-cooled plate, wherein the top cover allows the first liquid channel and the second liquid channel to communicate with each other.

[0026] In one embodiment, the inlet and outlet are connected to the first liquid channel and the second liquid channel via the first busbar and the second busbar, respectively.

[0027] In one embodiment, the inlet and outlet are connected to the first liquid channel and the second liquid channel respectively via a first busbar or a second busbar.

Implementation Method

[0028] Some typical embodiments embodying the features and advantages of this invention will be described in detail in the following description. It should be understood that this invention can have various variations in different forms, all of which do not depart from the scope of this invention, and the descriptions and drawings therein are essentially for illustrative purposes and not for limiting this invention. For example, different embodiments in this disclosure may use repeated reference numerals and / or markings. These repetitions are for simplification and clarity and are not intended to limit the relationships between the various embodiments and / or the described appearance structures. Furthermore, to facilitate the description of the relationship between one component or feature in the drawings and another (plural) component or feature, spatially related terms such as "upper," "lower," "top," "bottom," "inner," "outer," and similar terms may be used. In addition to the orientations shown in the drawings, spatially related terms are used to cover different orientations of the device in use or operation. The device may also be otherwise positioned (e.g., rotated 90 degrees or located in other orientations), and the descriptions of the spatially related terms used will be interpreted accordingly. Furthermore, when a component is referred to as "connected to" or "coupled to" another component, it may be directly connected to or coupled to the other component, or there may be intervening components. Although the numerical ranges and parameters of the broad scope disclosed herein are approximate, the values ​​are stated as precisely as possible in specific examples. Additionally, it is understood that while terms such as "first," "second," etc., may be used in the claims to describe different components, these components should not be limited by these terms, and the components described accordingly in the embodiments are represented by different component symbols. These terms are used to distinguish different components. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component without departing from the scope of the embodiments. The term "and / or" as thus used includes any or all combinations of one or more of the related listed items.

[0029] Figures 1 and 2 are perspective views illustrating the structure of the liquid-cooled busbar assembly of the first preferred embodiment of this invention. Figure 3 is a top view illustrating the liquid-cooled busbar assembly of the first preferred embodiment of this invention. Figures 4 and 5 are cross-sectional structural views illustrating the liquid-cooled busbar assembly of the first preferred embodiment of this invention. This invention provides a liquid-cooled busbar assembly 1, including a first busbar 10, a second busbar 20, an insulating member 30, and a water-cooling plate 40. The first busbar 10 and the second busbar 20 are, for example, paired busbars. In this embodiment, the first busbar 10 extends along a first direction (i.e., the Z-axis direction) and includes a first connection interface 11 facing a second direction (i.e., the reverse X-axis direction), and is assembled and electrically connected to an electrical component 9 to supply power to the electrical component 9. Similarly, the second busbar 20 extends along the first direction (i.e., the Z-axis direction) and includes a second connection interface 21 facing the second direction (i.e., the reverse X-axis direction), assembling and electrically connecting with the electrical component 9 to provide a power circuit path for the electrical component 9. An insulating member 30 is disposed between the first connection interface 11 of the first busbar 10 and the second connection interface 21 of the second busbar 20, electrically insulating the first connection interface 11 and the second connection interface 21, and also electrically insulating the correspondingly disposed first busbar 10 and second busbar 20. In this embodiment, the water-cooled plate 40 extends along the first direction (i.e., the Z-axis direction) and simultaneously contacts the rear end 12 of the first busbar 10 and the rear end 22 of the second busbar 20, and is electrically insulated from the first busbar 10 and the second busbar 20. Of course, the type of electrical insulation between the water-cooled plate 40 and the first busbar 10 and the second busbar 20 can be varied according to actual application requirements. For example, an insulating layer can be provided or insulating paint can be sprayed, but this invention is not limited to this. In this embodiment, the water-cooled plate 40 includes at least one liquid channel 43 extending along a first direction (i.e., the Z-axis direction). The at least one liquid channel 43 allows liquid coolant to flow through it to simultaneously cool the heat generated by the first busbar 10 and the second busbar 20.

[0030] In this embodiment, the insulating member 30 also extends along the first direction (i.e., the Z-axis direction). The first connecting interface 11 and the second connecting interface 21 together form a plug-in interface 8 through the insulating member 30 for connecting electrical components 9. It is worth noting that the bottom and top ends of the first busbar 10, the second busbar 20, the insulating member 30, and the water-cooled plate 40 extending along the first direction (i.e., the Z-axis direction) are not essential technical features limiting this invention. The liquid-cooled busbar assembly 1 allows for the formation of a common plug-in interface 8 for multiple electrical components 9 extending along the first direction (i.e., the Z-axis direction). Multiple electrical components 9 can be arranged along the first direction (i.e., the Z-axis direction) and respectively plugged into the plug-in interface 8 along the X-axis direction to provide power. For ease of explanation, this invention is described only with respect to a partial section structure and is not limited thereto.

[0031] In this embodiment, the liquid-cooled manifold assembly 1 further includes an inlet 41 and an outlet 42. The inlet 41 and outlet 42 are respectively located adjacent to the bottom and top of the water-cooled plate 40 and communicate with at least one liquid channel 43, assembling to introduce or export liquid coolant (not shown) into or out of the at least one liquid channel 43. In this embodiment, the inlet 41 is located at the bottom, and the outlet 42 is located at the top, with the liquid coolant flowing upwards along the Z-axis. In one embodiment, the inlet 41 is located at the top, and the outlet 42 is located at the bottom, with the liquid coolant flowing downwards along the opposite Z-axis. In other embodiments, the positions of the inlet 41 and outlet 42, the flow direction of the liquid coolant, and the type of the at least one liquid channel 43 can be varied according to actual application requirements; this embodiment is not limited to these. As can be seen from the above, when a single-structure water-cooled plate 40 is thermally coupled to the rear end 12 of the first busbar 10 and the rear end 22 of the second busbar 20 via the first surface 440, the connection interfaces included at the front ends of the two busbars can jointly form a plug-in interface 8 through the insulating member 30, allowing multiple vertically arranged electrical components 9 to be electrically connected. The inlet 41 and outlet 42 of the liquid coolant are connected by the second surface 450 of the water-cooled plate 40, and are not limited to being introduced or exported from the bottom or top, and do not interfere with the connection between the electrical components 9 and the plug-in interface 8.

[0032] In this embodiment, the water-cooled plate 40 includes a first long side plate 44 and a second long side plate 45, which are spaced apart from each other in a second direction (i.e., the reverse X-axis direction), and the second direction is perpendicular to the first direction. At least one liquid channel 43 is formed between the first long side plate 44 and the second long side plate 45. The first long side plate 44 provides a first surface 440 as a heat dissipation surface and is thermally connected to the rear end 12 of the first busbar 10 and the rear end 22 of the second busbar 20. The inlet 41 and the outlet 42 are parallel to the second direction (i.e., the reverse X-axis direction) and communicate with the at least one liquid channel 43 through the second surface 450 of the second long side plate 45.

[0033] In this embodiment, the liquid-cooled bus assembly 1 further includes a housing 50. The housing 50 extends along a first direction (i.e., the Z-axis direction), surrounding the first bus 10, the second bus 20, and the water-cooling plate 40, and has an opening end 51 facing a second direction (i.e., the reverse X-axis direction), which is perpendicular to the first direction. The opening end 51 is spatially opposite to the first connection interface 11 and the second connection interface 21, allowing the first connection interface 11 and the second connection interface 21 to be exposed through the opening end 51. In this embodiment, the housing 50 includes a pair of spacers 52, respectively disposed on opposite sides of the opening end 51. The first connection interface 11 and the second connection interface 21, through the insulating member 30 and the pair of spacers 52, together form a plug-in interface 8 facing the second direction (i.e., the reverse X-axis direction) for connecting electrical components 9. The application of the plurality of electrical components 9 with the common plug-in interface 8 has been described above and will not be repeated here. In this embodiment, the second surface 450 of the second long side plate 45 of the water-cooled plate 40 is attached to the inner wall of the outer casing 50, and the bottom inlet 41 and the top outlet 42 can be disposed through the outer casing 50. In other embodiments, the outer casing 50 can also easily avoid the inlet 41 and outlet 42 at the bottom and top. It should be emphasized that the liquid-cooled manifold assembly 1 of this invention utilizes a cooling system combining a single structure water-cooled plate 40 with the first manifold 10 and the second manifold 20, which is easy to assemble, occupies little space, and the positions of the inlet 41 and outlet 42 do not interfere with the use of the front-end plug-in interface 8, making it easy to rebuild the outer casing 50 to provide structural support and protection. Of course, this invention is not limited to this.

[0034] Figure 6 is a perspective view of the liquid-cooled busbar assembly of the second preferred embodiment of the present invention from a front-end perspective. Figures 7 and 8 are cross-sectional views of the liquid-cooled busbar assembly of the second preferred embodiment of the present invention. Figure 9 is a vertical cross-sectional view of the water-cooled plate in the liquid-cooled busbar assembly of the second preferred embodiment of the present invention. Figure 10 is a horizontal cross-sectional view of the water-cooled plate in the liquid-cooled busbar assembly of the second preferred embodiment of the present invention. In this embodiment, the liquid-cooled busbar assembly 1a is similar to the liquid-cooled busbar assembly 1 shown in Figures 1 to 5, and the same component reference numerals represent the same components, structures, and functions, which will not be described again here. In this embodiment, the liquid-cooled busbar assembly 1a also includes a first busbar, a second busbar 20, an insulating member 30, and a water-cooled plate 40a. Unlike the previous embodiments, in this embodiment, the water-cooled plate 40a is disposed between the first busbar 10 and the second busbar 20 and is electrically insulated from the first busbar 10 and the second busbar 20, and includes at least one liquid channel 43 extending along a first direction (i.e., the Z-axis direction), wherein the at least one liquid channel 43 allows liquid coolant to flow through, so as to simultaneously cool the heat generated by the first busbar 10 and the second busbar 20.

[0035] In this embodiment, the water-cooled plate 40a includes a first long side plate 44 and a second long side plate 45, parallel to the second direction (i.e., the reverse X-axis direction), and at least one liquid channel 43 is located between the first long side plate 44 and the second long side plate 45. In this embodiment, the first surface 440 of the first long side plate 44 and the second surface 450 of the second long side plate 45 respectively form a first heat dissipation surface and a second heat dissipation surface, which are thermally connected to the side 13 of the first busbar 10 and the side 23 of the second busbar 20. The first heat dissipation surface (i.e., the first surface 440) and the second heat dissipation surface (the second surface 450) are two surfaces opposite to each other in a third direction (i.e., the Y-axis direction), which is perpendicular to the second direction and perpendicular to the first direction. In this embodiment, an insulating and thermally conductive thermal interface material layer 60 is provided, for example, between the first surface 440 of the first long side plate 44 of the water-cooled plate 40a and the side 13 of the first busbar 10, and between the second surface 450 of the second long side plate 45 of the water-cooled plate 40a and the side 23 of the second busbar 20, to enhance the thermal coupling and insulation between the water-cooled plate 40a and the first busbar 10 and the second busbar 20. Of course, this embodiment is not limited to this.

[0036] In this embodiment, the water-cooled plate 40a further includes a partition 46 disposed within at least one liquid channel 43, parallel to the first long side plate 44 and the second long side plate 45, i.e., parallel to the second direction (i.e., the reverse X-axis direction), dividing the at least one liquid channel 43 into a first liquid channel 431 and a second liquid channel 432. In this embodiment, the water-cooled plate 40a further includes an inlet 41 and an outlet 42 disposed adjacent to the bottom end of the water-cooled plate 40a and parallel to the third direction (i.e., the Y-axis direction). The inlet 41 is connected to the first liquid channel 431 through the first long side plate 44; the outlet 42 is connected to the second liquid channel 432 through the second long side plate 45. In addition, in this embodiment, the water-cooled plate 40a further includes a top cover 47 and a bottom cover 48, which are detachably connected to the top cover and the bottom end of the water-cooled plate 40a, respectively. The top cover 47 includes a connecting structure, allowing the first liquid channel 431 and the second liquid channel 432 to communicate with each other, while the bottom cover 48 blocks the first liquid channel 431 and the second liquid channel 432. Thus, after the liquid coolant enters the first liquid channel 431 through the inlet 41, it is conveyed from the bottom to the top, flowing into the second liquid channel 432 via the connecting structure of the top cover 47. Subsequently, the liquid coolant is conveyed from the top to the bottom in the second liquid channel 432, and finally discharged through the outlet 42. In this embodiment, the flow directions of the liquid coolant in the first liquid channel 431 and the second liquid channel 432 are opposite. The first heat dissipation surface (first surface 440) thermally coupled to the first liquid channel 431 can effectively cool the heat generated by the first busbar 10, while the second heat dissipation surface (second surface 450) thermally coupled to the second liquid channel 432 can effectively cool the heat generated by the second busbar 20. Therefore, a single-structure water-cooled plate 40a can provide effective heat dissipation between the two busbars. In addition, the inlet 41 and outlet 42 of the liquid coolant are connected by the long side of the water-cooled plate 40a, which does not interfere with the connection between the electrical component 9 (see Figure 3) and the front plug-in interface 8 of the two busbars.

[0037] In this embodiment, the liquid-cooled busbar assembly 1a further includes a housing 50. The housing 50 extends along a first direction (i.e., the Z-axis direction), surrounding the first busbar 10, the second busbar 20, and the water-cooling plate 40a, and has an opening end 51 facing a second direction (i.e., the reverse X-axis direction), which is perpendicular to the first direction. The opening end 51 is spatially opposite to the first connection interface 11 and the second connection interface 21, allowing the first connection interface 11 and the second connection interface 21 to be exposed through the opening end 51. In this embodiment, the housing 50 includes a pair of spacers 52, respectively disposed on opposite sides of the opening end 51. The first connection interface 11 and the second connection interface 21, through the insulating member 30 and the pair of spacers 52, together form a plug-in interface 8 facing the second direction (i.e., the reverse X-axis direction) for connecting electrical components 9 (see Figure 3). The application of the plurality of electrical components 9 and the common plug-in interface 8 has been described above and will not be repeated here. In this embodiment, the inlet 41 is connected to the first liquid channel 431 via the outer casing 50, the first busbar 10, and the first surface 440 of the first long side plate 44 of the water-cooled plate 40a. The outlet 42 is connected to the second liquid channel 432 via the outer casing 50, the second busbar 20, and the second surface 450 of the second long side plate 45 of the water-cooled plate 40a, without interfering with the connection between the electrical component 9 and the front-end plug-in interface 8 of the two busbars. In other embodiments, the outer casing 50, the first busbar 10, and the second busbar 20 can also easily avoid the inlet 41 and outlet 42 at the bottom and top. It should be emphasized that the liquid-cooled busbar assembly 1a of this invention utilizes a single-structure water-cooled plate 40a sandwiched between the first busbar 10 and the second busbar 20 for cooling, which has high heat dissipation efficiency, small footprint, and the positions of the inlet 41 and outlet 42 do not interfere with the use of the front-end plug-in interface 8, making it easy to rebuild the outer casing 50 to provide structural support and protection. Of course, this invention is not limited to this.

[0038] Figure 11 is a cross-sectional view of the liquid-cooled manifold assembly of the third preferred embodiment. Figure 12 is a horizontal cross-sectional view of the water-cooled plate in the liquid-cooled manifold assembly of the third preferred embodiment of this invention. In this embodiment, the liquid-cooled manifold assembly 1b is similar to the liquid-cooled manifold assembly 1a shown in Figures 6 to 10, and the same component reference numerals represent the same components, structures, and functions, which will not be described again here. In this embodiment, the water-cooled plate 40b used in the liquid-cooled manifold assembly 1b further includes a partition 46, which is disposed in at least one liquid channel 43 and bent and connected between the first long side plate 44 and the second long side plate 45, dividing the at least one liquid channel 43 into a first liquid channel 431 and a second liquid channel 432. The liquid coolant flows in opposite directions in the first liquid channel 431 and the second liquid channel 432. The first heat dissipation surface (first surface 440) thermally coupled to the first liquid channel 431 effectively cools the heat generated by the first busbar 10, while the second heat dissipation surface (second surface 450) thermally coupled to the second liquid channel 432 effectively cools the heat generated by the second busbar 20. Thus, a single water-cooled plate 40b can provide effective heat dissipation between the two busbars. Furthermore, the inlet 41 and outlet 42 of the liquid coolant are connected by the long side of the water-cooled plate 40b, without interfering with the connection between the electrical component 9 (see Figure 3) and the front plug-in interface 8 of the two busbars.

[0039] Figure 13 is a structural perspective view of the liquid-cooled manifold assembly of the fourth preferred embodiment of the present invention from a front-end perspective. Figure 14 is a top view of the liquid-cooled manifold assembly of the fourth preferred embodiment of the present invention. Figure 15 is a cross-sectional structural view of the liquid-cooled manifold assembly of the fourth preferred embodiment of the present invention. Figure 16 is a vertical cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the fourth preferred embodiment of the present invention. In this embodiment, the liquid-cooled manifold assembly 1c is similar to the liquid-cooled manifold assembly 1a shown in Figures 6 to 10, and the same component reference numerals represent the same components, structures, and functions, which will not be described again here. In this embodiment, the water-cooled plate 70 used in the liquid-cooled manifold assembly 1c is, for example, composed of two connected first tubes 74 and second tubes 75 arranged side by side. At least one liquid channel 73 includes a first liquid channel 731 and a second liquid channel 732. In other words, the first liquid channel 731 in the first tube 74 and the second liquid channel 732 in the second tube 75 are arranged along the second direction (i.e., the opposite X-axis direction), located between the side 13 of the first busbar 10 and the side 23 of the second busbar 20, and electrically insulated from the first busbar 10 and the second busbar 20 by an insulating and thermally conductive thermal interface material layer 60. The bottom end of the water-cooled plate 70 includes an inlet 71 and an outlet 72, allowing liquid coolant to flow in through the inlet 71 and through the heat dissipation surface of the thermally coupled first liquid channel 731 and second liquid channel 732, thereby flowing out of the water-cooled plate 70 through the outlet 72.

[0040] In this embodiment, the inlet 71 is parallel to a third direction (i.e., the Y-axis direction), passes through the first manifold 10, and connects to the bottom end of the first tube 74, thus communicating with the first liquid channel 731. Additionally, the outlet 72 is parallel to a third direction (i.e., the Y-axis direction), passes through the second manifold 20, and connects to the bottom end of the second tube 75, thus communicating with the second liquid channel 732. In this embodiment, the water-cooled plate 70 further includes a top cover 76, detachably connected to the top end of the water-cooled plate 70, wherein the communication structure of the top cover 76 allows the first liquid channel 731 and the second liquid channel 732 to communicate with each other. Thus, after the liquid coolant enters the first liquid channel 731 through the inlet 71, it is conveyed from the bottom end to the top end, and flows into the second liquid channel 732 through the communication structure of the top cover 76. Subsequently, the liquid coolant is conveyed from the top end to the bottom end in the second liquid channel 732, and finally discharged through the outlet 72. In this embodiment, the liquid coolant flows in opposite directions in the first liquid channel 731 (within the first tube 74) and the second liquid channel 732 (within the second tube 75). The same side of the first tube 74 and the second tube 75, which is close to the side 13, can effectively cool the heat generated by the first busbar 10, while the other side of the first tube 74 and the second tube 75, which is close to the side 23, can effectively cool the heat generated by the second busbar 20. Thus, a single water-cooled plate 70 can provide effective heat dissipation between the two busbars. Furthermore, the inlet 71 and outlet 42 of the liquid coolant are connected by the long side of the water-cooled plate 40a, without interfering with the connection between the electrical component 9 (see Figure 3) and the plug-in interface 8 at the front end of the two busbars.

[0041] Figure 17 shows the vertical cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the fifth preferred embodiment of this invention. In this embodiment, the water-cooled plate 70 used in the liquid-cooled manifold assembly 1c can be replaced with a water-cooled plate 70'. In this embodiment, the inlet 71 is parallel to the third direction (i.e., the Y-axis direction), passes through the second manifold 20, and connects to the bottom end of the first tube 74, realizing communication with the first liquid channel 731. In addition, the outlet 72 is parallel to the third direction (i.e., the Y-axis direction), passes through the second manifold 20, and connects to the bottom end of the second tube 75, realizing communication with the second liquid channel 732. Thus, the positions of the inlet 71 and the outlet 72 can be integrated on the same side of the second manifold 20 without interfering with the use of the front-end plug-in interface 8. In another embodiment, the positions of the inlet 71 and the outlet 72 can also be integrated on the same side of the first manifold 10 without interfering with the use of the front-end plug-in interface 8. In other embodiments, the first busbar 10 and the second busbar 20 can also easily avoid the inlet 71 and outlet 72 at their bottom and top ends. It should be emphasized that the liquid-cooled busbar assembly 1c of this invention utilizes a single-structure water-cooled plate 70 sandwiched between the first busbar 10 and the second busbar 20 for cooling, resulting in high heat dissipation efficiency, small footprint, and the inlet 71 and outlet 72 positions do not interfere with the use of the front-end plug-in interface 8. Of course, this invention is not limited to this.

[0042] As can be seen from the above, the liquid-cooled busbar assemblies 1, 1a, 1b, and 1c of this case are designed with single-structure water-cooling plates 40, 40a, 40b, 70, and 70', which allow the heat dissipation surface to be directly thermally coupled to the first busbar 10 and the second busbar 20, which are blocked by the insulating component 30, effectively improving the heat dissipation efficiency. The single-structure water-cooling plates 40, 40a, 40b, 70, and 70' can be thermally coupled to the opposite sides 13 and 23 of the two busbars or to the rear ends 12 and 22 of the two busbars, depending on the actual application, and maintain electrical insulation with the two busbars, so as to simultaneously cool the heat generated by the two busbars. Of course, the positions of the inlets 41 and 71 and the outlets 42 and 72, and the arrangement of the outer casing 50, the first busbar 10, and the second busbar 20, can be adjusted according to the actual application requirements. This case is not limited to this and will not be elaborated further.

[0043] In summary, this invention provides a liquid-cooled bus assembly. Through the liquid channel design of the water-cooling plate, the heat dissipation surface is directly thermally coupled to two busbars separated by insulating components, effectively improving heat dissipation efficiency. For a vertically extending liquid-cooled bus assembly, this invention provides a single-structure water-cooling plate that is simultaneously thermally coupled to the opposing inner surfaces of the two busbars, or thermally coupled to the rear ends of the two busbars, while maintaining electrical insulation from the two busbars. At least one liquid channel of the water-cooling plate allows liquid coolant to flow through, simultaneously cooling the heat generated by the two busbars. When the single-structure water-cooling plate is thermally coupled to the rear ends of the two busbars with its front end face, the connection interfaces included at the front ends of the two busbars can jointly form a plug-in interface through insulating components, allowing for electrical connection of multiple vertically arranged electrical components. The inlet and outlet of the liquid coolant are connected by the rear end face of the water-cooling plate, not limited to bottom or top for introduction or export, and do not interfere with the connection between the electrical components and the plug-in interface. Furthermore, when a single-structure water-cooled plate is sandwiched between two busbars, the design of the water-cooled plate can include a first liquid channel and a second liquid channel to simultaneously cool both busbars. The liquid coolant flows in opposite directions in the first and second liquid channels, and can be connected, for example, at the top of the water-cooled plate. The first and second liquid channels can be formed by two connected pipes side by side, or by a flat or bent partition dividing the internal space of the water-cooled plate to form the first and second liquid channels. In this way, the single-structure water-cooled plate can provide effective heat dissipation between the two busbars. In addition, the inlet and outlet of the liquid coolant are connected by the long side of the water-cooled plate, which does not interfere with the connection between electrical components and the front plug-in interface of the two busbars. Moreover, the liquid-cooled busbar assembly of this invention utilizes a cooling system combining a single-structure water-cooled plate with two busbars, occupying a small body space. The inlet and outlet positions do not interfere with the use of the front plug-in interface, and it is easy to rebuild the shell to provide structural support and protection. Of course, this invention is not limited to these limitations.

[0044] This case can be modified in various ways by a person skilled in this technology, but all of them are subject to the protection sought by the appended patent application. [Simplified Explanation of the Diagram]

[0045] The following detailed description of the case and the schematic diagrams of the embodiments are intended to enable those skilled in the art to better understand the above content, and are not intended to limit the case.

[0046] Figure 1 is a structural perspective view of the liquid-cooled busbar assembly of the first preferred embodiment of the present invention from the rear view.

[0047] Figure 2 is a structural perspective view of the liquid-cooled busbar assembly of the first preferred embodiment of the present invention from a front-end perspective.

[0048] Figure 3 is a top view of the liquid-cooled busbar assembly of the first preferred embodiment of the present invention.

[0049] Figure 4 is a cross-sectional view of the liquid-cooled manifold assembly of the first preferred embodiment of the present invention.

[0050] Figure 5 shows the top view of the liquid-cooled manifold assembly in Figure 4.

[0051] Figure 6 is a structural perspective view of the liquid-cooled busbar assembly of the second preferred embodiment of the present invention from the front view.

[0052] Figure 7 is a cross-sectional view of the liquid-cooled manifold assembly of the second preferred embodiment of the present invention.

[0053] Figure 8 shows the top view of the liquid-cooled busbar assembly in Figure 7.

[0054] Figure 9 shows the vertical cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the second preferred embodiment of this case.

[0055] Figure 10 shows the horizontal cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the second preferred embodiment of this case.

[0056] Figure 11 is a cross-sectional view of the liquid-cooled busbar assembly of the third preferred embodiment.

[0057] Figure 12 shows the horizontal cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the third preferred embodiment of this case.

[0058] Figure 13 is a structural perspective view of the liquid-cooled busbar assembly of the fourth preferred embodiment of this case from the front view.

[0059] Figure 14 is a top view of the liquid-cooled busbar assembly of the fourth preferred embodiment of the present invention.

[0060] Figure 15 is a cross-sectional view of the liquid-cooled manifold assembly of the fourth preferred embodiment of the present invention.

[0061] Figure 16 shows the vertical cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the fourth preferred embodiment of this case.

[0062] Figure 17 shows the vertical cross-sectional structure of the water-cooled plate in the liquid-cooled manifold assembly of the fifth preferred embodiment of this case.

Claims

1. A liquid-cooled manifold assembly, comprising: A first bus extending along a first direction and including a first connection interface, configured to be electrically connected to an electrical component to supply power to the electrical component; and a second bus extending along the first direction and including a second connection interface, configured to be electrically connected to the electrical component to provide a power return path for the electrical component; an insulating member disposed between the first connection interface and the second connection interface to electrically insulate the first connection interface from the second connection interface; and a water-cooling plate contacting a rear end of both the first bus and the second bus, electrically insulated from the first bus and the second bus, and including at least one liquid channel extending along the first direction, wherein the at least one liquid channel allows a liquid coolant to flow through to cool the first bus and the second bus.

2. The liquid-cooled bus assembly as claimed in claim 1, wherein the insulating member extends along the first direction, and the first connection interface and the second connection interface together form a plug interface through the insulating member for connecting the electrical component.

3. The liquid-cooled manifold assembly as claimed in claim 1 further includes an inlet and an outlet, wherein the inlet and the outlet are respectively disposed adjacent to the top and top of the water-cooled plate and communicate with the at least one liquid channel, and are configured to introduce or export the liquid coolant into or out of the at least one liquid channel.

4. The liquid-cooled manifold assembly as claimed in claim 3, wherein the water-cooling plate includes a first long side plate and a second long side plate, the first long side plate and the second long side plate are spaced apart from each other in a second direction, the second direction being perpendicular to the first direction, the at least one liquid channel is formed between the first long side plate and the second long side plate, the first long side plate is thermally connected to the rear end of the first manifold and the second manifold, the inlet and the outlet are parallel to the second direction and are connected to the at least one liquid channel through the second long side plate.

5. The liquid-cooled manifold assembly as claimed in claim 3 further includes a housing, wherein the housing extends along the first direction around the first manifold, the second manifold and the water-cooling plate, and has an opening facing a second direction perpendicular to the first direction, wherein the opening is spatially opposite to the first connection interface and the second connection interface, allowing the first connection interface and the second connection interface to be exposed through the opening.

6. The liquid-cooled busbar assembly as claimed in claim 5, wherein the housing includes a pair of spacers disposed on opposite sides of the opening end, and the first connection interface and the second connection interface together form a plug-in interface facing the second direction through the insulating member and the pair of spacers for connecting the electrical component.

7. A liquid-cooled manifold assembly, comprising: A first bus extending along a first direction and including a first connection interface, configured to be electrically connected to an electrical component to supply power to the electrical component; and a second bus extending along the first direction and including a second connection interface, configured to be electrically connected to the electrical component to provide a power return path for the electrical component; an insulating member disposed between the first connection interface and the second connection interface to provide electrical insulation between the first connection interface and the second connection interface; and a water-cooling plate disposed between the first bus and the second bus and electrically insulated from the first bus and the second bus, and including at least one liquid channel extending along the first direction, wherein the at least one liquid channel allows a liquid coolant to flow through to cool the first bus and the second bus.

8. The liquid-cooled bus assembly as claimed in claim 7, wherein the insulating member extends along the first direction, and the first connection interface and the second connection interface together form a plug interface through the insulating member for connecting the electrical component.

9. The liquid-cooled manifold assembly as claimed in claim 7, wherein the water-cooling plate includes a first long side plate and a second long side plate, parallel to a second direction, the at least one liquid channel is located between the first long side plate and the second long side plate, wherein the first long side plate and the second long side plate respectively form a first heat dissipation surface and a second heat dissipation surface, thermally connected to the sides of the first manifold and the second manifold, wherein the first heat dissipation surface and the second heat dissipation surface are two surfaces opposite to each other in a third direction, the third direction being perpendicular to the second direction and perpendicular to the first direction.

10. The liquid-cooled manifold assembly as claimed in claim 9, wherein the water-cooling plate further includes a partition disposed within the at least one liquid channel, parallel to the first long side plate and the second long side plate, dividing the at least one liquid channel into a first liquid channel and a second liquid channel.

11. The liquid-cooled manifold assembly as claimed in claim 9, wherein the water-cooling plate further includes a partition disposed within the at least one liquid channel, bent and connected between the first long side plate and the second long side plate, dividing the at least one liquid channel into a first liquid channel and a second liquid channel.

12. The liquid-cooled manifold assembly as claimed in claim 10, wherein the water-cooled plate further includes an inlet and an outlet disposed adjacent to the bottom end of the water-cooled plate, and respectively connected to the first liquid channel and the second liquid channel through the first long side plate and the second long side plate.

13. The liquid-cooled manifold assembly as claimed in claim 10, wherein the water-cooled plate further includes a top cover and a bottom cover detachably connected to the top and bottom of the water-cooled plate, respectively, wherein the top cover allows the first liquid channel and the second liquid channel to communicate with each other, and the bottom cover blocks the first liquid channel and the second liquid channel.

14. The liquid-cooled bus assembly as claimed in claim 7 further includes a housing, wherein the housing extends along the first direction around the first bus, the second bus, and the water-cooling plate, and has an opening facing a second direction perpendicular to the first direction, wherein the opening is spatially opposite to the first connection interface and the second connection interface, allowing the first connection interface and the second connection interface to be exposed through the opening.

15. The liquid-cooled bus assembly as claimed in claim 14, wherein the housing includes a pair of spacers disposed on opposite sides of the opening end, and the first connection interface and the second connection interface together form a plug-in interface facing the second direction via the insulating member and the pair of spacers for connecting the electrical component.

16. A liquid-cooled busbar assembly, comprising: A water-cooled plate extending along a first direction includes at least one liquid channel allowing a liquid coolant to flow through and forming at least one heat dissipation surface; A first busbar extends along the first direction, contacts the water-cooled plate and is thermally coupled to the at least one heat dissipation surface, and has a first connection interface, wherein the first connection interface is configured to be electrically connected to an electrical component to supply power to the electrical component; and a second busbar extends along the first direction, contacts the water-cooled plate and is thermally coupled to the at least one heat dissipation surface, and has a second connection interface, wherein the second connection interface is configured to be electrically connected to the electrical component to provide a power circuit path for the electrical component, wherein the first connection interface of the first busbar and the second connection interface of the second busbar are insulated by an insulating member and together form a plug-in interface for connecting the electrical component; wherein a bottom end of the water-cooled plate includes an inlet and an outlet, allowing the liquid coolant to flow in from the inlet, flow through the at least one heat dissipation surface, and then flow out of the water-cooled plate from the outlet.

17. The liquid-cooled bus assembly as claimed in claim 16, wherein the insulating member extends along the first direction, and the first connection interface and the second connection interface together form a plug interface through the insulating member for connecting the electrical component.

18. The liquid-cooled manifold assembly of claim 16, wherein the at least one liquid channel includes a first liquid channel and a second liquid channel, the first liquid channel and the second liquid channel being arranged along a second direction, located between the first manifold and the second manifold, and electrically insulated from the first manifold and the second manifold, wherein the second direction is perpendicular to the first direction, and the liquid coolant flows in opposite directions in the first liquid channel and the second liquid channel.

19. The liquid-cooled manifold assembly as claimed in claim 18, wherein the water-cooled plate further includes a top cap detachably connected to the top of the water-cooled plate, wherein the top cap allows the first liquid passage to communicate with the second liquid passage.

20. The liquid-cooled manifold assembly as claimed in claim 18, wherein the inlet and the outlet are respectively connected to the first liquid channel and the second liquid channel via the first manifold and the second manifold.

21. The liquid-cooled manifold assembly as claimed in claim 18, wherein the inlet and the outlet are respectively connected to the first liquid channel and the second liquid channel via the first manifold or the second manifold.

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