Case and transformer

Abstract

The utility model discloses a case and transformer, the case comprises a housing and a heating device, a device accommodating cavity and a liquid cooling cavity are arranged in the housing, and flowing cooling liquid is accommodated in the liquid cooling cavity to cool the device accommodating cavity. The heating device is encapsulated in the device accommodating cavity, and the heating device and the shell are oppositely arranged in an insulating mode. In the case provided by the utility model, the case adopts liquid cooling heat dissipation, the heating device is subjected to potting treatment, and water cooling is combined, so that the heat of the heating device is dissipated as soon as possible, and heat exchange between the heat and the cooling capacity of the cooling liquid is realized. In addition, the cooling mode does not involve electrical devices, the heat dissipation effect of liquid cooling heat dissipation is good, heat of heating devices can be taken out in time, and therefore the service life of the case provided by the invention is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of power devices, in particular to a chassis and a transformer. Background Art

[0002] A heat generating device is arranged in the chassis and protected by the chassis casing. Considering that the heat generating device generates heat during operation, in order to dissipate the heat as quickly as possible, ventilation is provided to the inner cavity of the casing through a fan, that is, the heat of the heat generating device is dissipated by an air cooling method of a fan.

[0003] However, the fan has poor reliability and short service life, and cannot dissipate heat from heat-generating components well, thereby shortening the service life of the chassis.

[0004] Therefore, how to extend the service life of the chassis is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a chassis, the service life of which is prolonged. Another purpose of the utility model is to provide a transformer including the chassis.

[0006] The chassis provided in this application includes:

[0007] A housing, wherein a device accommodating cavity and a liquid cooling cavity are provided in the housing, wherein the device accommodating cavity and the liquid cooling cavity are filled with flowing cooling liquid to cool the device accommodating cavity;

[0008] A heating device is encapsulated in the device accommodating cavity, and the heating device is relatively insulated from the shell.

[0009] Optionally, in the above chassis, the housing includes:

[0010] A main body, wherein a partition is provided in the main body for isolating the device accommodating cavity and the liquid cooling cavity;

[0011] A sealing plate is sealed and connected to the main body, and the liquid cooling cavity is formed between the sealing plate, the main body and the partition.

[0012] Optionally, in the above-mentioned chassis, the device accommodating cavity is located above the liquid cooling cavity, the sealing plate is sealed with the bottom end of the main body, a sealing ring is provided between the sealing plate and the main body, the sealing plate is provided with a protruding first connecting member, and the outer wall of the main body is provided with a protruding second connecting member, the first connecting member and the second connecting member are connected by fasteners, the first connecting member is arranged in sequence around the outer circumference of the main body, and the second connecting member corresponds to the first connecting member one by one.

[0013] Optionally, in the above chassis, the second connecting member is integrally formed with the main body, and / or the first connecting member is integrally formed with the sealing plate.

[0014] Optionally, in the above chassis, a guide plate is provided in the liquid cooling cavity to set the flow channel in the liquid cooling cavity as a bent flow channel, and the liquid inlet and liquid outlet of the liquid cooling cavity are located on the same side or different sides of the shell.

[0015] Optionally, in the above chassis, the sealing plate is provided with a mounting groove adapted to the guide plate, and the free end of the guide plate is inserted into the mounting groove.

[0016] Optionally, the above chassis further includes a heat dissipation column arranged in the liquid cooling cavity, the heat dissipation column is connected to the outer wall surface of the device accommodating cavity, and there is one or at least two heat dissipation columns.

[0017] Optionally, in the above chassis, all the heat dissipation columns are arranged in sequence along the flow direction of the coolant in the liquid cooling cavity, and the heat dissipation columns are arranged in a shuttle shape along the flow direction of the coolant in the liquid cooling cavity.

[0018] Optionally, in the above chassis, the heating device includes an inductor, or the heating device includes a winding and a magnetic core of a transformer; when the housing is a metal part, the housing and / or the heating device are insulated.

[0019] A transformer comprises the chassis described in any one of the above items.

[0020] In the above technical scheme, the chassis provided by the utility model includes a shell and a heating device, and a device accommodating cavity and a liquid cooling cavity are provided in the shell, and a flowing coolant is placed in the liquid cooling cavity to cool the device accommodating cavity. The heating device is encapsulated in the device accommodating cavity, and the heating device and the shell are relatively insulated. When the chassis is working, the heat of the heating device is dissipated through the encapsulated medium to transport the coolant to the liquid cooling cavity, and the coldness of the liquid cooling cavity is heat-exchanged with the heat of the device accommodating cavity to take out the heat of the heating device.

[0021] From the above description, it can be seen that in the chassis provided in the present application, the chassis adopts liquid cooling for heat dissipation, and the heat-generating components are potted, so that the heat of the heat-generating components can be dissipated as quickly as possible, and heat exchange between heat and cooling liquid is realized. The cooling method does not involve electrical components, and the heat dissipation effect of liquid cooling is better, which can bring out the heat of the heat-generating components in time, thereby extending the service life of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the housing provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a housing from another perspective provided by an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the structure of a housing provided by an embodiment of the utility model;

[0026] Figure 4 for Figure 3 a right side view of the housing shown;

[0027] Figure 5 for Figure 3 a top view of the housing shown;

[0028] Figure 6 for Figure 3 a bottom view of the housing shown;

[0029] Figure 7 A schematic diagram of the three-dimensional structure of the main body provided by an embodiment of the utility model;

[0030] Figure 8 A bottom view of the main body provided by an embodiment of the utility model;

[0031] Fig. 9 A schematic diagram of the three-dimensional structure of the sealing plate provided in an embodiment of the utility model;

[0032] Fig.10 This is a schematic structural diagram of a sealing plate provided in an embodiment of the utility model.

[0033] in Figure 1-10 In: 1-main body, 2-liquid inlet, 3-liquid outlet, 4-sealing plate, 5-first connecting piece, 6-second connecting piece, 7-spacer, 8-heat conducting piece, 9-device accommodating cavity, 10-guide plate, 11-heat dissipating column, 12-installation groove, 13-liquid cooling cavity, 14-partition. DETAILED DESCRIPTION

[0034] The core of the utility model is to provide a chassis, the service life of which is prolonged. Another object of the utility model is to provide a transformer including the chassis.

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0036] Please refer to Figures 1 to 10 .

[0037] In a specific embodiment, the chassis provided by the specific embodiment of the utility model includes a shell and a heat-generating device, and a device accommodating cavity 9 and a liquid cooling cavity 13 are provided in the shell. The device accommodating cavity 9 and the liquid cooling cavity 13 are preferably arranged adjacent to each other, and the liquid cooling cavity 13 contains flowing coolant to cool the device accommodating cavity 9.

[0038] The heating device is encapsulated in the device accommodating cavity 9, and the heating device is relatively insulated from the housing. Specifically, the device accommodating cavity 9 can be divided into a plurality of device installation chambers by a partition plate 7, and the device installation chambers are arranged in sequence along the length direction of the liquid cooling cavity 13.

[0039] In order to facilitate the heat dissipation of the heating device, a heat conducting member 8 is provided on the wall of the device accommodating cavity 9 facing the liquid cooling cavity 13, and the width of the heat conducting member 8 gradually increases toward the liquid cooling cavity 13 to increase the heat exchange area. At the same time, the heating device can also be installed on the heat conducting member 8.

[0040] When the chassis is working, the heat of the heating device is dissipated through the potting medium to transport the coolant to the liquid cooling chamber 13. The coldness of the liquid cooling chamber 13 is heat-exchanged with the heat of the device accommodating chamber 9 to remove the heat of the heating device.

[0041] From the above description, it can be seen that in the chassis provided in the specific embodiment of the present application, the chassis adopts liquid cooling for heat dissipation, and the heat-generating components are potted, so that the heat of the heat-generating components can be dissipated as quickly as possible, and heat exchange between heat and cooling liquid is realized. The cooling method does not involve electrical components and has high reliability. The heat dissipation effect of liquid cooling is better, and the heat of the heat-generating components can be brought out in time. Therefore, the service life of the chassis provided by the present application is extended.

[0042] The heating device may include an inductor, and the heating device may also include a winding and a magnetic core of a transformer. Preferably, the chassis provided by the present application is used in the field of photovoltaic energy storage devices. The present application can reduce the inductor, the coil cross-sectional area of ​​the transformer, the volume of the magnetic core, improve the electrical density, reduce the volume of the magnetic core, allow higher losses, and reduce the overall volume of the chassis, thereby facilitating the miniaturization of the chassis and reducing manufacturing costs.

[0043] In a specific embodiment, the housing includes a main body 1 and a sealing plate 4, and a partition 14 is provided in the main body 1 for isolating the device accommodating cavity 9 and the liquid cooling cavity 13. Specifically, the partition 14 can be fixedly connected to the main body 1, or the partition 14 is fixedly connected to the sealing plate 4. Preferably, the partition 14 is integrally formed with the main body 1.

[0044] The sealing plate 4 is sealed and connected to the main body 1, and a liquid cooling chamber 13 is formed between the sealing plate 4, the main body 1 and the partition plate 14. In order to improve the sealing performance, a sealing ring is provided at the connection position between the sealing plate 4 and the main body 1.

[0045] The device accommodating cavity 9 is located above the liquid cooling cavity 13, and the sealing plate 4 is sealed with the bottom end of the main body 1. Specifically, the sealing plate 4 can be a flat plate structure, and the partition 14 is recessed in the inner cavity of the main body 1. The sealing plate 4 is provided with a first convex connecting member 5, and the outer wall of the main body 1 is provided with a second convex connecting member 6. The first connecting member 5 and the second connecting member 6 are connected by fasteners. Specifically, the first connecting member 5 and the second connecting member 6 can be connected by threaded fasteners.

[0046] The first connectors 5 are arranged in sequence around the outer circumference of the main body 1, and the second connectors 6 correspond one-to-one to the first connectors 5. Specifically, preferably, each wall surface of the main body 1 is provided with a first connector 5, and preferably, each wall surface is provided with at least two first connectors 5 to improve the connection stability and the sealing of the liquid cooling chamber 13.

[0047] When the housing is a metal part, the housing and / or the heating element are insulated. Specifically, the winding and the magnetic core of the internal inductor or transformer are insulated from the main body 1. If the main body 1 is non-metallic, it is not necessary to insulate the internal heating element from the main body 1.

[0048] In order to improve assembly efficiency, preferably, the second connector 6 is integrally formed with the main body 1, and the first connector 5 is integrally formed with the sealing plate 4. In specific processing, the second connector 6 is integrally cast with the main body 1, and the first connector 5 is integrally cast with the sealing plate 4.

[0049] In order to improve the heat dissipation effect, preferably, a guide plate 10 is provided in the liquid cooling chamber 13 to set the flow channel in the liquid cooling chamber 13 as a curved flow channel. Specifically, the flow channel is set in an S shape. The liquid inlet 2 and the liquid outlet 3 of the liquid cooling chamber 13 are located on the same side of the shell. Of course, the liquid inlet 2 and the liquid outlet 3 of the liquid cooling chamber 13 can also be located on different sides. Figure 7 and Figure 8 As shown, the flow channel adopts a disc-shaped bend to increase the contact area between the shell and the coolant, so that the coolant can pass through the bottom of the shell as far as possible, thereby enhancing the heat dissipation effect.

[0050] In order to facilitate external connection of cooling liquid, preferably, the liquid inlet 2 and the liquid outlet 3 of the liquid cooling chamber 13 are located on the same side of the housing.

[0051] The guide plate 10 may specifically be a planar structure. In order to achieve flow disturbance for the coolant, the guide plate 10 may also be set as a corrugated plate structure.

[0052] The sealing plate 4 is provided with a mounting groove 12 adapted to the guide plate 10, and the free end of the guide plate 10 is inserted into the mounting groove 12. Specifically, the mounting groove 12 is provided on one side of the sealing plate 4, and the size of the mounting groove 12 is determined according to the size of the guide plate 10. Preferably, the two are clearance-matched. By providing the mounting groove 12 on the sealing plate 4, the installation stability of the guide plate 10 is improved, and the sealing of the installation position of the guide plate 10 and the sealing plate 4 is improved, so that the coolant flows along a preset path.

[0053] Of course, in another embodiment, the guide plate 10 can be installed on the sealing plate 4, and the partition plate 14 can also be provided with a mounting groove 12 that matches the sealing plate 4.

[0054] In order to further improve the heat dissipation effect, preferably, the chassis further includes a heat dissipation column 11 disposed in the liquid cooling cavity 13, the heat dissipation column 11 is connected to the outer wall surface of the device accommodating cavity 9, and there is one or at least two heat dissipation columns 11. By providing the heat dissipation column 11, the contact area between the housing and the coolant can be increased, and the coolant can generate turbulence in the liquid cooling water channel, thereby enhancing the heat dissipation effect.

[0055] More preferably, the heat dissipation columns 11 are arranged in sequence along the flow direction of the coolant in the liquid cooling chamber 13, and the heat dissipation columns 11 are arranged in a shuttle shape along the flow direction of the coolant in the liquid cooling chamber 13. Preferably, two adjacent heat dissipation columns 11 are separated and staggered along the flow direction of the coolant, that is, the projections of the two along the flow direction of the coolant do not overlap. When the heating module is working, the internal coil and magnetic core will generate heat. At this time, the coolant at the bottom can dissipate the heat of the winding and the magnetic core, achieving the effect of dissipating heat and cooling the product.

[0056] In order to further improve the heat dissipation effect, preferably, the heat dissipation column 11 and the guide plate 10 are heat-conducting structures, and both are installed on the partition 14.

[0057] The present application provides a transformer, including any of the above-mentioned chassis. The above text describes the specific structure of the chassis, and the present application includes the above-mentioned chassis and also has the above-mentioned technical effects.

[0058] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chassis, characterized in that: include: A housing, wherein a device accommodating cavity (9) and a liquid cooling cavity (13) are provided in the housing, wherein a flowing cooling liquid is contained in the liquid cooling cavity (13) to cool the device accommodating cavity (9); A heating device is encapsulated in the device accommodating cavity (9), and the heating device is arranged relatively insulated from the housing.

2. The chassis according to claim 1, characterized in that: The housing comprises: A main body (1), wherein a partition (14) is provided in the main body (1) for isolating the device accommodating cavity (9) and the liquid cooling cavity (13); A sealing plate (4), wherein the sealing plate (4) is sealedly connected to the main body (1), and the liquid cooling chamber (13) is formed between the sealing plate (4), the main body (1) and the partition plate (14).

3. The chassis according to claim 2, characterized in that: The device accommodating cavity (9) is located above the liquid cooling cavity (13), the sealing plate (4) is sealed with the bottom end of the main body (1), a sealing ring is provided between the sealing plate (4) and the main body (1), the sealing plate (4) is provided with a first protruding connecting member (5), the outer wall of the main body (1) is provided with a second protruding connecting member (6), the first connecting member (5) and the second connecting member (6) are connected by fasteners, the first connecting member (5) is arranged in sequence around the outer periphery of the main body (1), and the second connecting member (6) corresponds to the first connecting member (5) one by one.

4. The chassis according to claim 3, characterized in that: The second connecting member (6) is integrally formed with the main body (1), and / or the first connecting member (5) is integrally formed with the sealing plate (4).

5. The chassis according to claim 2, characterized in that: A guide plate (10) is provided in the liquid cooling chamber (13) to configure the flow channel in the liquid cooling chamber (13) as a bent flow channel. The liquid inlet (2) and the liquid outlet (3) of the liquid cooling chamber (13) are located on the same side or different sides of the shell.

6. The chassis according to claim 5, characterized in that: The sealing plate (4) is provided with a mounting groove (12) adapted to the guide plate (10), and the free end of the guide plate (10) is inserted into the mounting groove (12).

7. The chassis according to claim 1, characterized in that: It also includes a heat dissipation column (11) arranged in the liquid cooling cavity (13), the heat dissipation column (11) being connected to the outer wall surface of the device accommodating cavity (9), and there is one or at least two heat dissipation columns (11).

8. The chassis according to claim 7, characterized in that: All of the heat dissipation columns (11) are arranged in sequence along the flow direction of the coolant in the liquid cooling cavity (13), and the heat dissipation columns (11) are arranged in a shuttle shape along the flow direction of the coolant in the liquid cooling cavity (13).

9. The chassis according to claim 1, characterized in that: The heating device includes an inductor, and / or the heating device includes a winding and a magnetic core of a transformer; when the housing is a metal part, the housing and / or the heating device are insulated.

10. A transformer, characterized in that: Comprising a chassis as claimed in any one of claims 1 to 9.

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