Electrical cabinet and electrical device

Abstract

The invention discloses an electrical cabinet and an electrical device, and the electrical cabinet comprises a housing which is provided with a side wall which is enclosed in the circumferential direction; the connecting piece is provided with two connecting units along a horizontal first direction; the connecting unit extends along a horizontal second direction perpendicular to the first direction, and is provided with a first connecting part extending upwards and a second connecting part extending inwards and horizontally relative to the shell; the surface, facing the shell, of the first connecting part is fixedly connected with the lower side edge of the side wall, and the second connecting part extends into the range defined by the side wall of the shell. And the lower side surfaces of the two side edges of the liquid cooling plate in the first direction are attached to the second connecting part, and the upper side surfaces of the two side edges are attached to the lower edges of the side walls. According to the electrical cabinet, the problem that a cabinet with a liquid cooling heat dissipation function is heavy in weight can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical cabinets, and particularly to an electrical cabinet and an electrical device. Background Art

[0002] In existing electrical devices, such as an integrated energy storage converter and booster, power components, radiators and related electrical devices are installed inside the cabinet. Among them, the power components generally include power tubes or switching tubes, and the power components are in contact with the heat dissipation surface of the radiator to ensure effective heat dissipation of the high-heat-generating power components. When the radiator is a liquid-cooled radiator, the electrical device can have a more compact structure and size, which can effectively reduce the overall volume and floor area of the electrical cabinet equipment for installing the electrical device, and help improve the power density in an energy storage station or related application environments. Generally, the liquid-cooled radiator is installed inside the cabinet in the form of a liquid-cooled plate. However, due to the large weight of the liquid-cooled radiator, the structural strength of the cabinet itself is difficult to meet the requirement of bearing the liquid-cooled radiator. Therefore, when the existing electrical device is loaded into the electrical cabinet, a bottom support for bearing the electrical device is provided, but this further increases the weight of the electrical device in the electrical cabinet, and instead reduces the power or capacity scale that the electrical cabinet can provide. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background art, and provide an electrical cabinet and an electrical device, and the electrical cabinet can improve the problem of large weight of the cabinet with liquid-cooling function.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] Technical Solution 1: An electrical cabinet, comprising: a housing having side walls that enclose in the circumferential direction; a connecting member having two connecting units arranged along a horizontal first direction; the connecting unit extends along a horizontal second direction perpendicular to the first direction, and is provided with a first connecting portion extending upward and a second connecting portion extending horizontally inward relative to the housing; the surface of the first connecting portion facing the housing is fixedly connected to the lower side edge of the side wall, and the second connecting portion extends into the range enclosed by the side walls of the housing; and a liquid-cooled plate, the lower side surfaces of the two side edges in the first direction of which are in contact with the second connecting portion, and the upper side surfaces of the two side edges are in contact with the lower edge of the side wall.

[0006] Based on Technical Solution 1, Technical Solution 2: The housing is provided with mating flanges that are connected to the lower edges of the side walls on both sides in the first direction and extend horizontally inward; the mating flanges and the second connecting portions of the corresponding connecting units form a fixing space; the two side edges in the first direction of the liquid-cooled plate are placed in the fixing space, and the upper side surfaces of the two side edges are in contact with the lower side surfaces of the mating flanges.

[0007] Technical solution three based on technical solution two: The housing is provided with a bottom wall that is connected to the lower edge of the side wall and extends horizontally. The upper side surface of the liquid cooling plate abuts against the lower side surface of the bottom wall.

[0008] Technical solution four based on any one of technical solutions one to three: On the side walls on both sides of the housing along the first direction, at positions corresponding to the first connection parts of the two connection units, they are recessed inward along the first direction towards the inside of the housing to form strengthening parts, and the first connection parts are fixedly connected to the corresponding strengthening parts.

[0009] Technical solution five based on technical solution four: It further includes a fixing member, which is provided with two fixing units arranged along the first direction; the fixing units are located on the outer side of the corresponding connection units relative to the housing and are fixedly connected to the connection units and the housing.

[0010] Technical solution six based on technical solution five: The fixing unit is provided with a first fixing part extending upward and a second fixing part extending horizontally outward relative to the housing. The first fixing part abuts against the corresponding first connection part and is fixedly connected to the strengthening part of the housing; the second fixing part is provided with a fitting installation hole that penetrates up and down; the fixing unit is provided with a hoisting part connecting the first fixing part and the second fixing part, and the hoisting part is provided with a hoisting hole for hoisting the electrical chassis.

[0011] Technical solution seven based on technical solution six: One end of the fixing unit in the second direction is provided with a first limiting part extending upward and extending along the first direction. The first limiting part is located on one side of the housing in the second direction and is fixedly connected to the side wall of the housing on this side to limit the liquid cooling plate from moving towards this side along the second direction.

[0012] Technical solution eight based on technical solution seven: It further includes a positioning member, which is fixedly connected to the housing and is located on the other side of the housing in the second direction relative to the limiting part; the positioning member extends along the second direction and protrudes from the side wall of the housing on this side in the second direction, and it has a second limiting part extending along the second direction towards the liquid cooling plate and used for limiting the liquid cooling plate from moving towards this side along the second direction.

[0013] Technical solution nine based on technical solution one: The bottom of the second connection part is provided with a guide slide bar.

[0014] In addition, the present invention also provides technical solution ten: An electrical device, which includes an electrical chassis as described in any one of technical solutions one to nine, and electrical components located in the electrical chassis. At least part of the electrical components abut against the surface of the liquid cooling plate exposed from the opening on the bottom wall of the housing.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0016] Technical solution one provides an electrical chassis, which includes a housing, a connecting member and a liquid cooling plate. The housing has a circumferentially enclosing side wall. The first connecting portion of the connecting member is fixedly connected to the lower side edge of the side wall, and at the same time, the second connecting portion extending inwardly of the connecting member can support the corresponding side edge of the liquid cooling plate. Through the cooperation of the second connecting portion of the connecting member and the side wall of the housing, a space for installing the liquid cooling plate is formed between the lower edge of the side wall of the housing and the second connecting portion. After the liquid cooling plate is supported by the second connecting portion, the weight of the liquid cooling plate can be transmitted to the side wall of the housing, thereby making use of the advantage that the structural strength of the side wall in the up and down directions is relatively large, and preventing the bottom of the housing from deforming due to bearing weight. The above connection structure makes the liquid cooling plate itself the main load-bearing component, thus allowing the use of a more lightweight housing design. Compared with the traditional design that requires a thick bottom wall or an independent bottom support, the overall weight and cost of the chassis are significantly reduced.

[0017] More importantly, since the connecting member only arranges connection units in the first direction, a window for the liquid cooling plate to move is actually formed in the second direction. When installing the liquid cooling plate, the connection unit can be first fixedly connected to the side wall of the housing, and then the two side edges of the liquid cooling plate can be inserted between the housing and the connection unit. When it is necessary to remove the liquid cooling plate, the liquid cooling plate can also be simply pulled out from between the housing and the connection unit. Among them, after the liquid cooling plate is installed at the bottom of the housing, electrical devices that need to be cooled can be arranged on the upper surface of the liquid cooling plate. Or, the liquid cooling plate can be first buckled under the housing, after the lower edge of the side wall of the housing abuts against the liquid cooling plate, then the two side edges of the liquid cooling plate can be held by the second connecting portion of the connecting member, and then the first connecting portion of the connecting member can be fixedly connected to the lower side edge of the side wall of the housing.

[0018] Particularly, when the electrical chassis is loaded in a cabinet, since the second connecting portion of the connecting member is located below the liquid cooling plate and the second connecting portion itself has a certain thickness, a gap can be formed between the liquid cooling plate and the surface carrying the electrical chassis through the connecting member, avoiding the liquid cooling plate directly contacting the carrying surface. Especially when the electrical chassis is loaded in an electrical cabinet, the position of the second connecting portion of the connecting member can be adapted to the carrying structures such as the guide rails in the electrical cabinet, thereby improving the problem that the liquid cooling plate is easily damaged when it is placed outside. At the same time, since the liquid cooling plate does not contact the guide rails of the cabinet.

[0019] In this solution, the liquid cooling plate is placed outside the housing, and through the mutual cooperation between the housing and the second connecting part of the connecting piece, a firm connection is formed between the liquid cooling plate and the housing. At the same time, the bottom support is omitted, reducing the weight of the electrical device in the electrical cabinet. In particular, the housing can be directly seated on the liquid cooling plate, and the electrical components inside the electrical chassis can be installed on the liquid cooling plate. Therefore, the liquid cooling plate becomes the main load-bearing area of the entire chassis. At this time, the structural strength of the housing can be greatly reduced compared with the conventional design scheme, the thickness of the housing is reduced, the size of the entire chassis can be further reduced, and the manufacturing cost can also be further reduced. When hoisting and transporting the electrical device using this electrical chassis, the liquid cooling plate and the connecting piece can also be used as the fixed basis to avoid damage caused by the weak structure of the housing.

[0020] In Technical Solution 2, a mating flange is further provided on the housing. The mating flange cooperates with the second connecting part of the connecting unit to form a well-defined fixed space. This fixed space can accurately position and stably accommodate the side of the liquid cooling plate, ensuring the stability and reliability of the installation, and facilitating the liquid cooling plate to move along the second direction in a pulling manner. At the same time, the setting of the mating flange increases the contact area between the housing and the liquid cooling plate, enabling the housing to be stably seated on the upper surface of the liquid cooling plate, further improving the overall structural strength of the chassis, and making the housing less prone to deformation. In addition, the mating flange only extends inward by a certain dimension at the bottom position of the housing, so an opening can still be formed at the bottom of the housing for the upper surface of the liquid cooling plate to be exposed. Accordingly, the electrical components can directly contact the upper surface of the liquid cooling plate through this opening, thus ensuring the liquid cooling efficiency.

[0021] In Technical Solution 3, a bottom wall is provided on the housing. The bottom wall can completely or partially enclose the bottom of the housing. At this time, the bottom wall can directly form a structure in abutting cooperation with the liquid cooling plate, further enhancing the overall structural strength of the chassis. At the same time, after the bottom wall abuts against the liquid cooling plate, heat conduction can be directly carried out through the bottom wall, and the electrical components can also be directly installed on the bottom wall of the housing. In this structure, the housing can have better sealing performance; or the electrical components can be abutted against the liquid cooling plate through the through holes on the bottom wall. This structure can enable the housing to be more firmly seated on the liquid cooling plate while ensuring good heat dissipation performance.

[0022] In Technical Solution 4, a reinforcing part is formed by inward contraction on the side wall of the housing, which can significantly improve the bending strength and stiffness of the side wall, enhance the overall structural stability of the chassis, effectively resist external pressure and impact, and prevent the chassis from deforming. At the same time, the reinforcing part can disperse the force from the connecting piece to a larger area of the side wall, reducing stress concentration, thereby improving the load-bearing capacity of the chassis. And fixing the first connecting part of the connecting piece on the reinforcing part can provide a more stable connection point and enhance the connection strength between the connecting piece and the housing.

[0023] In Technical Solution Five, the fixing member is fixedly connected to the connecting unit and the housing, further enhancing the connection strength between the connecting unit and the housing, forming a more stable overall structure, and improving the structural reliability of the chassis. Among them, the fixing unit is installed on the outside of the connecting unit, and the connecting unit is of a bent structure. When the connecting unit is slightly deformed under the influence of the weight of the liquid cooling plate, the cooperation relationship between the fixing unit and the connecting unit can inhibit this deformation of the connecting unit, thereby reducing the stress influence on the connecting unit, improving the bearing capacity of the connecting piece, and ensuring the firm and reliable installation of the liquid cooling plate.

[0024] In Technical Solution Six, the first fixing portion abuts against the first connecting portion and is fixedly connected to the strengthening portion, forming multi-point fixation, further enhancing the connection between the connecting unit and the housing, and making the structure more stable and reliable. At the same time, fitting mounting holes are provided on the second fixing portion. When needed, other fittings such as a bottom bracket can be further installed on the fixing member. In addition, a lifting portion is provided, and a lifting hole is provided, which is convenient for using lifting equipment for lifting and handling, improving the installation efficiency, reducing the difficulty and risk of manual handling at the same time, and ensuring operation safety.

[0025] In Technical Solution Seven, the first limiting portion restricts the movement of the liquid cooling plate in the second direction, preventing it from being displaced due to vibration, impact or other external forces, and ensuring that the liquid cooling plate always remains in the correct position. Preventing the displacement of the liquid cooling plate can ensure its good contact with the heat dissipation device, maintain the heat dissipation efficiency, and reduce the occurrence of problems such as poor contact or short circuit caused by the movement of the liquid cooling plate, improving the overall reliability of the equipment.

[0026] In Technical Solution Eight, the positioning member and the first limiting portion form a double limiting structure, more effectively restricting the movement of the liquid cooling plate in the second direction, and further improving the fixing reliability of the liquid cooling plate. By adjusting the position or size of the positioning member, liquid cooling plates of different sizes can be adapted, improving the versatility and application range of the chassis. In addition, the positioning member protrudes from one side of the housing. When the chassis is installed in the cabinet, the positioning member can serve as a positioning mechanism and cooperate with structures such as positioning grooves in the cabinet to prevent the chassis from shaking in the up and down directions.

[0027] In Technical Solution Nine, guide sliding strips are provided at the bottom of the second connecting portion, reducing the friction force between the chassis and the surfaces such as the sliding rails on the cabinet during the installation of the chassis into the cabinet, and making it more convenient to load the chassis.

[0028] Technical Solution Ten provides an electrical device. This electrical device adopts the above-mentioned electrical chassis. Some electrical components can be in direct contact with the liquid cooling plate through the openings on the bottom wall, achieving efficient heat dissipation. The optimized structural design makes the entire electrical device structure compact, saves space, and is suitable for high-density application scenarios. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is an exploded view of the structure of the electrical chassis related to the embodiments of the present invention;

[0031] Figure 2 It is a schematic diagram of the assembled state of the electrical chassis related to the embodiments of the present invention;

[0032] Figure 3 For Figure 2 It is a top view of the electrical chassis in

[0033] Figure 4 For Figure 1 It is a top view schematic diagram of the housing of the electrical chassis in

[0034] Figure 5 For Figure 3 It is a schematic diagram of the A-A section in

[0035] Figure 6 For Figure 1 It is an enlarged schematic diagram of part A in

[0036] Figure 7 For Figure 1 It is an enlarged schematic diagram of part B in

[0037] Figure 8 For Figure 5 It is an enlarged schematic diagram of part C in

[0038] Main reference numeral description:

[0039] Housing 10; bottom shell 11; side wall 12; strengthening part 121; opening 13; mating flange 14; auxiliary flange 15; top cover 16;

[0040] Connecting member 20; connecting unit 21; first connecting part 22; second connecting part 23;

[0041] Liquid cooling plate 30;

[0042] Fixing member 40; fixing unit 41; first fixing part 42; second fixing part 43; first limiting part 44; fitting mounting hole 45; hoisting part 46; hoisting hole 461;

[0043] Positioning member 50; second limiting part 51;

[0044] Guide slide 60. Detailed implementation manners

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0046] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is only for distinguishing different objects and not for describing a specific order.

[0047] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, for orientation terms, the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or position relationship is based on the orientation and position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention.

[0048] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "fixed connection" or "fixedly connected" should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrally formed, and being fixed connected through other devices or elements.

[0049] In the claims, the description and the above-mentioned drawings of the present invention, the use of terms such as "comprise", "have" and their variants are intended to mean "including but not limited to".

[0050] Embodiment 1

[0051] Embodiment 1 of the present invention relates to an electrical chassis, which can be used to install electrical devices and can cooperate with electrical devices to form an electrical device. The specific type of electrical device can select corresponding electrical devices or related accessories according to actual needs.

[0052] The electrical chassis involved in this embodiment includes a housing 10, a connecting member 20, a liquid cooling plate 30, a fixing member 40, and a positioning member 50. Through the combination of the above-mentioned components, compared with a conventional chassis with liquid cooling and heat dissipation functions, this electrical chassis can effectively reduce the overall weight of the chassis on the premise of providing good heat dissipation for the internal electrical components.

[0053] Among them, referring to Figure 1 , the housing 10 has a side wall 12 that encloses in the circumferential direction; the connecting member 20 is provided with two connecting units 21 arranged along the horizontal first direction; the connecting unit 21 extends along the horizontal second direction perpendicular to the first direction, and is provided with a first connecting portion 22 extending upward and a second connecting portion 23 extending horizontally inward relative to the housing 10; the surface of the first connecting portion 22 facing the housing 10 is fixedly connected to the lower side edge of the side wall 12, and the second connecting portion 23 extends into the range enclosed by the side wall 12 of the housing 10; the lower side surfaces of the two side edges of the liquid cooling plate 30 in the first direction are abutted against the second connecting portion 23, and the upper side surfaces of the two side edges are abutted against the lower edge of the side wall 12.

[0054] Specifically, referring to Figure 1 and Figure 2 , Figure 1 is an exploded schematic view of the electrical chassis, Figure 2 is a schematic view of the assembled state of the electrical chassis. The directions in this specification and the claims are expressed in terms of front, back, left, right, up, and down in the accompanying drawings of this embodiment. Among them, the first direction in the claims is the left-right direction in this embodiment, the second direction is the front-back direction in this embodiment, and the up-down direction is the up-down direction in this embodiment. The overall electrical chassis in this embodiment is in a cuboid configuration, so it has six side surfaces corresponding to this shape.

[0055] Specifically, in this embodiment, the side wall 12 of the housing 10 extends in the up-down direction and is joined end to end in the circumferential direction to form a rectangular frame structure. In this embodiment, according to the rectangular configuration of the electrical chassis, the side wall 12 can be divided into the front side wall 12, the rear side wall 12, the left side wall 12, and the right side wall 12. In this embodiment, the front side wall 12 of the electrical chassis can be used for installing and fixing the wiring terminals of the electrical components inside the chassis and exposing them from the front side wall 12 to facilitate connection with other external devices through cables. In addition, the housing 10 further includes a top cover 16, and the top cover 16 can be covered above the side wall 12 of the housing 10 and cover the open area located on the upper side formed by the enclosure of the side wall 12.

[0056] Referring to Figure 1, the connecting member 20 includes two connecting units 21. In this embodiment, these two connecting units 21 are metal profiles. These two connecting units 21 each extend in the front-rear direction and are arranged in the left-right direction, so as to cooperate with the edges on the left and right sides of the housing 10. Among them, referring to Figure 6 , which is Figure 1 an enlarged schematic view of part A in

[0057] , which shows the specific structure of the connecting unit 21. The connecting unit 21 is provided with a first connecting portion 22 and a second connecting portion 23. Viewed from the cross-section, the connecting unit 21 has an "L"-shaped structure, wherein the first connecting portion 22 extends in the up-down direction, the second connecting portion 23 extends in the left-right direction, and the lower edge of the first connecting portion 22 is connected to the edge of the second connecting portion 23 located outside the housing 10. For the connecting unit 21 on the right side of the housing 10, the extending direction of its second connecting portion 23 is from right to left; for the connecting unit 21 on the left side of the housing 10, the extending direction of its second connecting portion 23 is from left to right. That is to say, for any one of the connecting units 21, the second connecting portion 23 starts from the lower edge of the first connecting portion 22 and extends towards the position where the housing 10 is located. Figure 3 , Figure 5 and Figure 8 , wherein Figure 8 is Figure 5 an enlarged schematic view of part C in Figure 1 and Figure 6 . The first connecting portion 22 of the connecting unit 21 is fixedly connected to the side wall 12 of the housing 10 through a threaded fastener, and the second connecting portion 23 extends into the enclosed range of the side wall 12 of the housing 10. In addition, referring to

[0058] , a guide slide 60 is further provided at the bottom of the second connecting portion 23. The guide slide 60 can be made of a relatively smooth fitting such as an epoxy board, so as to reduce the friction between the surface of the chassis and the surface of the slide rail on the cabinet during the installation of the chassis into the cabinet, and it is more convenient to load the chassis. Figure 1 , the liquid cooling plate 30 is a rectangular plate-like member, and a continuous coolant flow channel is provided inside it, and a water nozzle is provided on its front side. The external coolant delivery pipe can be connected to its water nozzle, and the coolant with a lower temperature is delivered to the coolant flow channel of the liquid cooling plate 30, and the coolant with an increased temperature after heat absorption is taken away from the coolant flow channel. The edges on the left and right sides of the liquid cooling plate 30 are placed between the lower edge of the side wall 12 of the housing 10 and the second connecting portion 23 of the connecting unit 21, and the lower side surfaces of the edges on the left and right sides of the liquid cooling plate 30 are in contact with the second connecting portion 23, and the upper side surfaces of these two edges are in contact with the lower edge of the side wall 12.

[0059] Through the cooperation between the second connecting portion 23 of the connecting member 20 and the side wall 12 of the housing 10, a space for installing the liquid cooling plate 30 is formed between the lower edge of the side wall 12 of the housing 10 and the second connecting portion 23. After the liquid cooling plate 30 is supported by the second connecting portion 23, the weight of the liquid cooling plate 30 can be transmitted to the side wall 12 of the housing 10, thereby making use of the advantage that the side wall 12 has greater structural strength in the up and down directions and preventing the bottom of the housing 10 from deforming due to bearing weight. The above-mentioned connection structure makes the liquid cooling plate 30 itself become the main load-bearing component, thereby allowing the use of a lighter-weight housing 10 design. Compared with the traditional design that requires a thick bottom wall or an independent bottom support, the overall weight and cost of the chassis are significantly reduced.

[0060] More critically, since the connecting member 20 only arranges the connecting units 21 in the first direction, a window for the liquid cooling plate 30 to move is actually formed in the second direction. When installing the liquid cooling plate 30, the connecting units 21 can be first fixed to the side wall 12 of the housing 10, and then the two side edges of the liquid cooling plate 30 can be inserted between the housing 10 and the connecting units 21. When it is necessary to remove the liquid cooling plate 30, the liquid cooling plate 30 can also be simply withdrawn from between the housing 10 and the connecting units 21. Among them, after the liquid cooling plate 30 is installed at the bottom of the housing 10, electrical devices that need to be cooled can be arranged on the upper surface of the liquid cooling plate 30. Or, the liquid cooling plate 30 can be first buckled under the housing 10, and after the lower edge of the side wall 12 of the housing 10 abuts against the liquid cooling plate 30, the two side edges of the liquid cooling plate 30 can be held by the second connecting portion 23 of the connecting member 20, and then the first connecting portion 22 of the connecting member 20 can be fixed to the lower side edge of the side wall 12 of the housing 10.

[0061] Particularly, when the electrical chassis is loaded in the cabinet, since the second connecting portion 23 of the connecting member 20 is located below the liquid cooling plate 30 and the second connecting portion 23 itself has a certain thickness, a gap can be formed between the liquid cooling plate 30 and the surface carrying the electrical chassis through the connecting member 20, avoiding the direct contact between the liquid cooling plate 30 and the carrying surface. Especially when the electrical chassis is loaded in the electrical cabinet, the position of the second connecting portion 23 of the connecting member 20 can be adapted to the carrying structures such as the rails in the electrical cabinet, thereby improving the problem that the liquid cooling plate 30 is easily damaged when the liquid cooling plate 30 is placed outside. At the same time, since the liquid cooling plate 30 does not contact the rails of the cabinet.

[0062] Further, referring to Figure 8 , on both sides of the housing 10 along the first direction, at positions corresponding to the first connecting portions 22 of the two connecting units 21, the side walls 12 are recessed inward along the first direction towards the inside of the housing 10 to form strengthening portions 121, and the first connecting portions 22 are fixed to the corresponding strengthening portions 121.

[0063] Specifically, the above-mentioned reinforcing portions 121 are provided on both the left side wall 12 and the right side wall 12 of the housing 10. The side wall 12 and the bottom wall of the housing 10 can be formed by bending a metal sheet. Among them, in the part of the side wall 12 close to the connecting edge with the bottom wall, the position of this part of the side wall 12 in the left-right direction is closer to the inner side of the housing 10 than the position of the upper part of the side wall 12 in the left-right direction. That is to say, at the lower position of the side wall 12 originally extending in the up-down direction, the side wall 12 first bends inward to form a bending structure, and then continues to extend downward to form another part of the side wall 12, and this part is the above-mentioned reinforcing portion 121. The dimension of the reinforcing portion 121 in the up-down direction is approximately the same as the dimension of the first connecting portion 22 in the up-down direction, and the reinforcing portion 121 also extends in the front-back direction of the side wall 12 of the housing 10, and its extending length is approximately the same as the length of the connecting unit 21 in the front-back direction. Therefore, the connecting unit 21 is connected to the reinforcing portion 121 of the side wall 12 of the housing 10. By forming the reinforcing portion 121 by inward contraction on the side wall 12 of the housing 10, the bending strength and stiffness of the side wall 12 can be significantly improved, the overall structural stability of the chassis can be enhanced, external pressure and impact can be effectively resisted, and the chassis deformation can be prevented. At the same time, the reinforcing portion 121 can disperse the force from the connecting member 20 to a larger range of the side wall 12, reduce stress concentration, thereby improving the load-bearing capacity of the chassis, and fixing the first connecting portion 22 of the connecting member 20 on the reinforcing portion 121 can provide a more stable connection point and enhance the connection strength between the connecting member 20 and the housing 10.

[0064] Moreover, in this embodiment, the surface of the first connecting portion 22 facing outward relative to the housing 10 in the first direction is flush with the surfaces of the side walls 12 on both sides of the housing 10 facing the outside of the housing 10 in the first direction. Such a setting ensures the flatness of the outer surface of the chassis and reduces the potential collision risk.

[0065] Refer to Figure 1 , two fixing units 41 are arranged along the first direction on the fixing member 40; the fixing unit 41 is located outside the corresponding connecting unit 21 relative to the housing 10 and is fixedly connected to the connecting unit 21 and the housing 10. The fixing unit 41 is provided with a first fixing portion 42 extending upward and a second fixing portion 43 extending horizontally outward relative to the housing 10. The first fixing portion 42 abuts against the corresponding first connecting portion 22 and is fixedly connected to the reinforcing portion 121 of the housing 10; the second fixing portion 43 is provided with a fitting mounting hole 45 penetrating up and down; the fixing unit 41 is provided with a hoisting portion 46 connecting the first fixing portion 42 and the second fixing portion 43, and the hoisting portion 46 is provided with a hoisting hole 461 for hoisting the electrical chassis.

[0066] Specifically, refer to Figure 6 , Figure 7 andFigure 8 The two fixing units 41 of the fixing member 40 are correspondingly arranged with the two connecting units 21 of the connecting member 20, and are respectively located outside the position of the housing 10 relative to the corresponding connecting unit 21. The fixing unit 41 includes a first fixing portion 42 extending in the up-and-down direction and a second fixing portion 43 extending in the left-and-right direction. The lower edge of the first fixing portion 42 is joined to the inner edge of the second fixing portion 43, and it can be regarded that the second fixing portion 43 is formed by extending outward from the lower edge of the first fixing portion 42. The dimensions of the first fixing portion 42 in the up-and-down direction and the front-and-back direction are substantially equivalent to those of the first connecting portion 22 of the connecting unit 21. The inner surface of the first fixing portion 42 can be abutted against the outer surface of the first connecting portion 22 of the corresponding connecting unit 21, and the fixing unit 41 and the connecting unit 21 are simultaneously fixed to the reinforcing portion 121 of the side wall 12 of the housing 10 through threaded fasteners. Further, the fixing unit 41 and the connecting unit 21 can also be fixedly connected to the liquid cooling plate 30 through threaded fasteners.

[0067] On the second fixing portion 43 of the fixing unit 41, a plurality of accessory mounting holes 45 penetrating up and down are arranged in the front-and-back direction. When necessary, other accessories such as a bottom bracket can be further installed on the fixing member 40. At the same time, a plurality of lifting portions 46 are arranged in the front-and-back direction between the first fixing portion 42 and the second fixing portion 43. The lifting portion 46 is a plate-like structure extending upward from the upper side surface of the second fixing portion 43 and connected to the outer surface of the first fixing portion 42. A lifting hole 461 is penetratingly provided in the lifting portion 46 in the front-and-back direction, which is convenient for using lifting equipment for lifting and handling, improves the installation efficiency, and at the same time reduces the difficulty and risk of manual handling and ensures the operation safety.

[0068] Further, referring to Figure 6 One end of the fixing unit 41 in the second direction is provided with a first limiting portion 44 extending upward and extending in the first direction. The first limiting portion 44 is located on one side of the housing 10 in the second direction and is fixedly connected to the side wall 12 of the housing 10 on this side to limit the liquid cooling plate 30 from moving toward this side in the second direction. At the same time, referring to Figure 1 A positioning member 50 is fixedly connected to the housing 10 and is located on the other side of the housing 10 in the second direction relative to the limiting portion; the positioning member 50 extends in the second direction and protrudes from the side wall 12 of the housing 10 on this side in the second direction, and it has a second limiting portion 51 extending toward the liquid cooling plate 30 in the second direction and used for limiting the liquid cooling plate 30 from moving toward this side in the second direction.

[0069] Specifically, the front end position of the fixing unit 41 is bent towards the position where the housing 10 is located, forming a first limiting portion 44 that extends upward and towards the housing 10. The position of the first limiting portion 44 is located on the front side of the housing 10, and it just blocks in front of the liquid cooling plate 30, thereby restricting the forward movement of the liquid cooling plate 30 in the front-rear direction. The positioning member 50 is a long strip-shaped member extending in the left-right direction. It has a certain width in the front-rear direction and is fixedly installed on the bottom wall of the housing 10 at the rear side position of the housing 10 through threaded fasteners. The front side edge of the positioning member 50 forms a second limiting portion 51, and the second limiting portion 51 abuts against the rear side edge of the liquid cooling plate 30, restricting the backward movement of the liquid cooling plate 30 in the front-rear direction. In addition, the positioning member 50 protrudes from one side of the housing 10. When the chassis is installed in the cabinet, the positioning member 50 can serve as a positioning mechanism and cooperate with structures such as positioning grooves in the cabinet to prevent the chassis from shaking in the up-down direction.

[0070] Embodiment 2

[0071] Based on Embodiment 1, Embodiment 2 of the present invention further improves the structure of the housing 10.

[0072] Among them, on both sides of the housing 10 in the first direction, there are provided mating flanges 14 that are connected to the lower edges of the side walls 12 on both sides and extend horizontally inward; the mating flanges 14 cooperate with the second connecting portions 23 of the corresponding connecting units 21 to form a fixing space; the two side edges of the liquid cooling plate 30 in the first direction are placed in the fixing space, and the upper side surfaces of the two side edges abut against the lower side surfaces of the mating flanges 14.

[0073] Specifically, referring to Figure 1 and Figure 4 , at the bottom position of the housing 10, that is, the part of the housing bottom 11 shown in Figure 1 , a mating flange 14 and an auxiliary flange 15 are formed by extending inward from the lower edges of the side walls 12. The mating flange 14 is a flange structure on the left and right sides of the housing 10, and the auxiliary flange 15 is a flange structure on the front and rear sides of the housing 10. Through the above-mentioned mating flange 14 and auxiliary flange 15, an opening 13 that penetrates up and down is formed at the bottom of the housing 10, and the upper side surface of the liquid cooling plate 30 can be exposed in the internal space of the housing 10 through this opening 13.

[0074] The first connecting portion 22 of the connecting unit 21 is fixedly connected to the side wall 12 of the housing 10 through a threaded fastener, and the second connecting portion 23 extends below the bottom wall of the housing 10. At this time, a fixed space with a certain size in the up and down direction can be formed by the cooperation between the second connecting portion 23 and the mating flange 14 of the bottom wall. In this embodiment, the size of the fixed space in the up and down direction is adapted to the thickness of the liquid cooling plate 30. At the same time, the edges on the left and right sides of the liquid cooling plate 30 are placed in the above-mentioned fixed space formed by the cooperation between the second connecting portion 23 of the connecting unit 21 and the mating flange 14 of the bottom wall, and are abutted against the mating flange 14 and the second connecting portion 23, that is, the mating flange 14 and the second connecting portion 23 are clamped and cooperated with the side edge of the liquid cooling plate 30. At the same time, the liquid cooling plate 30 can be connected and fixed to the mating flange 14 or the second connecting portion 23 through a threaded fastener to fix the liquid cooling plate 30 at least in the front and back directions. At this time, the liquid cooling plate 30 has been fixed by the two connecting units 21 in the left and right directions.

[0075] Furthermore, a mating flange 14 is provided on the housing 10. The mating flange 14 cooperates with the second connecting portion 23 of the connecting unit 21 to form a well-defined fixed space. This fixed space can accurately position and stably accommodate the side edge of the liquid cooling plate 30, ensuring the stability and reliability of the installation, and facilitating the movement of the liquid cooling plate 30 in the second direction in a pulling manner. At the same time, the setting of the mating flange 14 increases the contact area between the housing 10 and the liquid cooling plate 30, enabling the housing 10 to stably sit on the upper side surface of the liquid cooling plate 30, further improving the overall structural strength of the chassis, and making the housing 10 less likely to deform. In addition, the mating flange 14 only extends inward by a certain dimension at the bottom position of the housing 10. Therefore, an opening 13 can still be formed at the bottom of the housing 10 for the upper side surface of the liquid cooling plate 30 to be exposed. The corresponding electrical components can directly contact the upper side surface of the liquid cooling plate 30 through the opening 13, thereby ensuring the liquid cooling efficiency. And, auxiliary flanges 15 are provided on both sides of the bottom wall of the housing 10 in the second direction. Although there is no corresponding connecting unit 21 for the auxiliary flanges 15 to form a cooperation with, when the liquid cooling plate 30 is installed on the housing 10 through the connecting member 20, the liquid cooling plate 30 will be limited by the auxiliary flanges 15 in the up and down direction, so that the housing 10 and the liquid cooling plate 30 can form a limiting cooperation in the circumferential direction of the opening 13, and the housing 10 can sit more stably on the liquid cooling plate 30.

[0076] Embodiment 3

[0077] Based on Embodiment 1, Embodiment 3 of the present invention further improves the structure of the housing 10.

[0078] Specifically, the housing 10 is provided with a bottom wall that is connected to the lower edge of the side wall 12 and extends horizontally. The upper side surface of the liquid cooling plate 30 abuts against the lower side surface of the bottom wall. In this embodiment, there are two schemes for the setting method of the bottom wall of the housing 10. One is that the bottom wall completely closes the open area at the bottom of the housing 10. At this time, while the upper side surface of the liquid cooling plate 30 abuts against the lower side surface of the bottom wall, since the material of the housing 10 is generally metal, heat can be conducted through the bottom wall of the housing 10. After the electrical devices are arranged on the upper side surface of the bottom wall of the housing 10, these electrical devices can still dissipate heat through the liquid cooling plate 30. The other is to provide a plurality of small through holes that penetrate up and down on the bottom wall according to the positions of the electrical devices. The upper side surface of the liquid cooling plate 30 can be exposed inside the housing 10 through these through holes, and the electrical devices can directly abut against the liquid cooling plate 30 exposed from these through holes.

[0079] In this embodiment, a bottom wall is provided on the housing 10, and the bottom wall can completely or partially close the bottom of the housing 10. At this time, the bottom wall can directly form a structure in abutting fit with the liquid cooling plate 30, further enhancing the overall structural strength of the chassis. At the same time, after the bottom wall abuts against the liquid cooling plate 30, heat can be directly conducted through the bottom wall, and the electrical devices can also be directly installed on the bottom wall of the housing 10. In this structure, the housing 10 can have better sealing performance; or the electrical devices can abut against the liquid cooling plate 30 through the through holes on the bottom wall. This structure can make the housing 10 sit more stably on the liquid cooling plate 30 while ensuring good heat dissipation performance.

[0080] Embodiment 4

[0081] Embodiment 4 relates to an electrical device, which includes the electrical chassis described in Embodiment 1, 2 or 3, and electrical devices located in the electrical chassis. At least part of the electrical devices abut against the surface of the liquid cooling plate 30 exposed from the opening 13 on the bottom wall of the housing 10.

[0082] According to the actual situation, for example, when the electrical device is an energy storage converter and booster integrated machine, electrical devices therein, such as power components, can abut against the liquid cooling plate 30, so as to achieve efficient heat dissipation. The optimized structural design makes the entire electrical device structure compact, saves space, and is suitable for high-density application scenarios.

[0083] The above description of the specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation to the protection scope of the present invention. Through the inspiration of the present invention or the above embodiments, those of ordinary skill in the art, combined with common general knowledge, ordinary technical knowledge in the art and / or the prior art, through logical analysis, reasoning or limited experiments, can obtain modifications, equivalent replacements or other improvements to the embodiments of the present invention or some of its technical features, which should all be included in the protection scope of the present invention.

Claims

1. An electrical chassis, characterized in that, Comprising: A housing (10) having a circumferentially enclosing side wall (12); A connecting member (20) having two connecting units (21) arranged along a horizontal first direction; the connecting unit (21) extends along a horizontal second direction perpendicular to the first direction, and is provided with a first connecting portion (22) extending upward and a second connecting portion (23) extending horizontally inward relative to the housing (10); the surface of the first connecting portion (22) facing the housing (10) is fixedly connected to the lower side edge of the side wall (12), and the second connecting portion (23) extends into the range enclosed by the side wall (12) of the housing (10); and A liquid cooling plate (30) whose lower side surfaces of both side edges in the first direction are abutted against the second connecting portion (23), and whose upper side surfaces of both side edges are abutted against the lower edge of the side wall (12).

2. The electrical chassis according to claim 1, characterized in that, The housing (10) is provided with mating flanges (14) that are connected to the lower edges of the side walls (12) on both sides in the first direction and extend horizontally inward; the mating flanges (14) and the second connecting portions (23) of the corresponding connecting units (21) cooperate to form a fixing space; both side edges of the liquid cooling plate (30) in the first direction are placed in the fixing space, and the upper side surfaces of both side edges are abutted against the lower side surfaces of the mating flanges (14).

3. An electrical chassis as claimed in claim 1, characterized in that, The housing (10) is provided with a bottom wall that is connected to the lower edge of the side wall (12) and extends in the horizontal direction, and the upper side surface of the liquid cooling plate (30) is abutted against the lower side surface of the bottom wall.

4. An electrical chassis according to any one of claims 1 to 3, characterized in that, On both sides of the housing (10) along the first direction, the side walls (12) are recessed inward along the first direction towards the inner side of the housing (10) at positions corresponding to the first connecting portions (22) of the two connecting units (21) to form strengthening portions (121), and the first connecting portions (22) are fixedly connected to the corresponding strengthening portions (121).

5. An electrical chassis according to claim 4, characterized in that, It further includes a fixing member (40) having two fixing units (41) arranged along the first direction; the fixing unit (41) is located outside the corresponding connecting unit (21) relative to the housing (10), and is fixedly connected to the connecting unit (21) and the housing (10).

6. The electrical chassis according to claim 5, characterized in that, The fixing unit (41) is provided with a first fixing portion (42) extending upward and a second fixing portion (43) extending horizontally outward relative to the housing (10), the first fixing portion (42) is abutted against the corresponding first connecting portion (22) and is fixedly connected to the strengthening portion (121) of the housing (10); the second fixing portion (43) is provided with a fitting mounting hole (45) that penetrates up and down; the fixing unit (41) is provided with a lifting portion (46) connecting the first fixing portion (42) and the second fixing portion (43), and the lifting portion (46) is provided with a lifting hole (461) for lifting the electrical chassis.

7. An electrical chassis according to claim 6, characterized in that, One end of the fixing unit (41) in the second direction is provided with a first limiting portion (44) extending upward and extending in the first direction. The first limiting portion (44) is located on one side of the housing (10) in the second direction and is fixedly connected to the side wall (12) of this side of the housing (10) to limit the liquid cooling plate (30) from moving toward this side in the second direction.

8. An electrical chassis according to claim 7, characterized in that, It further includes a positioning member (50) fixedly connected to the housing (10) and located on the other side of the housing (10) in the second direction relative to the limiting portion; the positioning member (50) extends in the second direction and protrudes from the side wall (12) of this side of the housing (10) in the second direction, and it has a second limiting portion (51) facing the liquid cooling plate (30) in the second direction and used for limiting the liquid cooling plate (30) from moving toward this side in the second direction.

9. An electrical chassis according to claim 1, characterized in that, A guide slide bar (60) is provided at the bottom of the second connecting portion (23).

10. An electrical device, characterized in that, It includes an electrical chassis according to any one of claims 1-9, and electrical devices located in the electrical chassis. At least part of the electrical devices are abutted against the surface of the liquid cooling plate (30) exposed from the opening (13) on the bottom wall of the housing (10).

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