Liquid-cooled uninterruptible power supply

Abstract

The utility model discloses a liquid cooling uninterruptible power supply, comprising a casing; the circuit board assembly is installed in the machine shell and comprises an upper-layer circuit board, a lower-layer circuit board and a plurality of power tubes; one part of the power tubes are fixedly connected to the upper layer circuit board, and the other part of the power tubes are fixedly connected to the lower layer circuit board; the power tubes on the upper circuit board and the power tubes on the lower circuit board are oppositely arranged; the liquid cooling plate is mounted between the upper-layer circuit board and the lower-layer circuit board; the upper layer circuit board, the liquid cooling plate and the lower layer circuit board are sequentially stacked together from top to bottom. The liquid cooling uninterruptible power supply adopts liquid cooling heat dissipation, does not need to use a fan to exchange heat with the external environment, can greatly improve the miniaturization degree of the product, and also can prevent dust and fine particles from causing hidden dangers to equipment safety. The power tubes on the upper layer circuit board and the power tubes on the lower layer circuit board are oppositely arranged and share the same liquid cooling plate for heat dissipation, and the volume of the liquid cooling uninterruptible power supply is further compressed.

Description

Technical Field

[0001] The utility model belongs to the technical field of uninterruptible power supplies, and in particular relates to a liquid-cooled uninterruptible power supply. Background Art

[0002] Uninterruptible Power Supply (UPS) is a device used for power supply. It can provide emergency power supply when the main power fails, ensuring that key equipment and systems can continue to operate without interruption. It is widely used in data centers, network communication infrastructure, industrial control and other fields to ensure the stability and reliability of power supply.

[0003] In the existing technology of UPS power module products, with the growing demand for adapting to diversified application scenarios, the high power density characteristics of the products are particularly important. However, existing air-cooled products have certain limitations in design. Specifically, the size of the fan largely restricts the possibility of the product developing in a smaller direction. In addition, due to the setting of the air duct holes, dust and fine particles in the external environment can easily invade the interior of the product, which not only affects the cleanliness of the product, but also poses a potential threat to the long-term stable operation and safety of the product. Therefore, how to effectively improve the power density of the product while solving the fan size limitation and dust prevention problems has become a technical bottleneck that needs to be broken through in the field of UPS power modules. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a liquid-cooled uninterruptible power supply which can exchange heat with the external environment without using a fan, which can greatly improve the miniaturization of the product and also avoid potential safety hazards to the equipment caused by dust and fine particles.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A liquid-cooled uninterruptible power supply, comprising:

[0007] chassis;

[0008] A circuit board assembly installed in the housing, the circuit board assembly comprising an upper circuit board, a lower circuit board and a plurality of power tubes; a portion of the power tubes are fixedly connected to the upper circuit board, and another portion of the power tubes are fixedly connected to the lower circuit board; the power tubes on the upper circuit board are arranged opposite to the power tubes on the lower circuit board;

[0009] A liquid cooling plate installed between the upper circuit board and the lower circuit board;

[0010] The upper circuit board, the liquid cooling plate and the lower circuit board are stacked together in sequence from top to bottom.

[0011] Furthermore, it also includes an upper heat sink and a lower heat sink, the upper heat sink is arranged between the upper circuit board and the liquid cooling plate, the lower heat sink is arranged between the liquid cooling plate and the lower circuit board, and the upper heat sink, the liquid cooling plate and the lower circuit board are tightly fitted together.

[0012] Furthermore, the power tubes on the upper circuit board are closely attached to the upper heat sink; and the power tubes on the lower circuit board are closely attached to the lower heat sink.

[0013] Furthermore, the power tube is fixedly connected to the upper heat sink and / or the lower heat sink.

[0014] Furthermore, both the upper heat sink and the lower heat sink are provided with heat sink support columns, one end of the heat sink support column on the upper heat sink is fixedly connected to the upper heat sink, and the other end is detachably connected to the upper circuit board; one end of the heat sink support column on the lower heat sink is fixedly connected to the lower heat sink, and the other end is detachably connected to the lower circuit board.

[0015] Furthermore, the liquid cooling plate includes a flat plate, a liquid inlet and a liquid outlet, a flow channel for circulating cooling liquid is provided in the flat plate, the liquid inlet and the liquid outlet are opened on the outer surface of the flat plate, the liquid inlet is connected to the input end of the flow channel, and the liquid outlet is connected to the output end of the flow channel.

[0016] Furthermore, the liquid cooling plate further comprises a boss, which is arranged on two side surfaces of the flat plate and is fixedly connected to the upper heat dissipation plate and the lower heat dissipation plate.

[0017] Furthermore, the boss is provided with fixing holes for fixedly connecting with the upper heat sink and / or the lower heat sink.

[0018] Furthermore, the liquid cooling plate further comprises a groove, wherein the groove is arranged between two adjacent bosses; the circuit board assembly further comprises a plurality of capacitors, wherein the capacitors are accommodated in the groove.

[0019] Furthermore, the housing includes an upper box body, a lower box body and a support column, one end of the support column is fixedly connected to the upper circuit board and the upper box body, and the other end of the support column is fixedly connected to the lower circuit board and the lower box body.

[0020] Furthermore, the circuit board assembly also includes a display panel, and the display panel is electrically connected to the upper circuit board and the lower circuit board.

[0021] Furthermore, it also includes a transparent sheet, which is arranged on the housing, and a light guide column is arranged on the transparent sheet, one end of the light guide column is fixedly connected to the transparent sheet, and the other end is connected to the display panel.

[0022] Beneficial effects of the utility model:

[0023] The liquid-cooled uninterruptible power supply adopts liquid cooling to dissipate heat, and does not need to use a fan to exchange heat with the external environment, which can greatly improve the miniaturization of the product and avoid potential safety hazards to the equipment caused by dust and fine particles. The power tubes on the upper circuit board are arranged opposite to the power tubes on the lower circuit board, that is, the upper circuit board and the lower circuit board are buckled up and down, and share the same liquid cooling plate for heat dissipation, further compressing the volume of the liquid-cooled uninterruptible power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a liquid-cooled uninterruptible power supply of the utility model in one embodiment;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the liquid-cooled uninterruptible power supply of the present invention behind a hidden casing;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of a transparent sheet of the utility model in one embodiment;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper circuit board of the utility model in one embodiment;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the lower circuit board of the utility model in one embodiment;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of a heat sink and a power tube of the utility model in one embodiment;

[0030] Figure 7 It is a side sectional view of the heat sink and power tube of the utility model installed on the circuit board;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the lower circuit board and the lower box body of the utility model in one embodiment;

[0032] Fig. 9 This is a schematic diagram of the three-dimensional structure of a liquid cooling plate of the utility model in one embodiment;

[0033] Fig.10 A side cross-sectional view of a liquid cooling plate of the utility model in one embodiment;

[0034] Fig.11 It is a side sectional view of the liquid cooling plate of the utility model installed on the lower heat dissipation plate;

[0035] Fig.12 This is a schematic diagram of the three-dimensional structure of the liquid cooling plate of the utility model installed behind the lower heat dissipation plate;

[0036] Fig.13 It is a three-dimensional structural schematic diagram of the upper circuit board installation process of the utility model;

[0037] Fig.14 It is a side sectional view of a liquid-cooled uninterruptible power supply of the present invention in one embodiment.

[0038] Reference numerals include:

[0039] 100—housing 110—upper box 120—lower box

[0040] 130—handle 140—transparent sheet 141—light guide column

[0041] 142—elastic button 150—support column 200—circuit board assembly

[0042] 210—upper circuit board 211—nut column 220—lower circuit board

[0043] 230—display panel 240—power tube 250—capacitor

[0044] 300 - heat sink assembly 310 - upper heat sink 320 - lower heat sink

[0045] 330—heat dissipation support column 400—liquid cooling plate 410—liquid inlet

[0046] 420—Liquid outlet 430—Plate 431—Flow channel

[0047] 440—boss 441—fixing hole 450—groove DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0050] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] Please refer to Figure 1 and Figure 2 , which is a preferred embodiment of the utility model, the liquid-cooled uninterruptible power supply comprises: a housing 100; a circuit board assembly 200 installed in the housing 100, the circuit board assembly 200 comprises an upper circuit board 210, a lower circuit board 220 and a plurality of power tubes 240; a part of the power tubes 240 is fixedly connected to the upper circuit board 210, and another part of the power tubes 240 is fixedly connected to the lower circuit board 220; the power tubes 240 on the upper circuit board 210 are arranged opposite to the power tubes 240 on the lower circuit board 220; a liquid cooling plate 400 is installed between the upper circuit board 210 and the lower circuit board 220; the upper circuit board 210, the liquid cooling plate 400 and the lower circuit board 220 are stacked together from top to bottom.

[0053] The liquid-cooled uninterruptible power supply adopts liquid cooling to dissipate heat, and does not need to use a fan to exchange heat with the external environment, which can greatly improve the miniaturization of the product and avoid potential safety hazards to the equipment caused by dust and fine particles. The power tube 240 on the upper circuit board 210 is arranged opposite to the power tube 240 on the lower circuit board 220, that is, the upper circuit board 210 and the lower circuit board 220 are buckled up and down, and share the same liquid cooling plate 400 for heat dissipation, further compressing the volume of the liquid-cooled uninterruptible power supply. The following is a further detailed introduction to each of the above components.

[0054] like Figure 1 As shown, the housing 100 mainly includes an upper housing 110 and a lower housing 120, which are connected by screws at the front, rear and sides to form a complete rectangular box-shaped housing 100. Handles 130 are provided on the left and right sides of the front end of the housing 100 to facilitate the movement of the liquid-cooled uninterruptible power supply.

[0055] like Figure 2 As shown, the housing 100 further includes a support column 150. One end of the support column 150 is fixedly connected to the upper circuit board 210 and the upper box 110, and the other end of the support column 150 is fixedly connected to the lower circuit board 220 and the lower box 120, so that the upper box 110, the upper circuit board 210, the liquid cooling plate 400, the lower circuit board 220 and the lower box 120 form a whole.

[0056] like Figure 2 As shown, the liquid-cooled uninterruptible power supply further includes a transparent sheet 140, and the transparent sheet 140 is disposed on the housing 100. Figure 3 As shown, the transparent sheet 140 is provided with a light guide column 141 and an elastic button 142. One end of the light guide column 141 is fixedly connected to the transparent sheet 140, and the other end of the light guide column 141 is connected to the display panel 230 of the circuit board assembly 200. The display panel 230 is electrically connected to the upper circuit board 210 and the lower circuit board 220. The light guide column 141 can guide the light on the display panel 230 out of the housing 100, so as to facilitate the observation of the working state of the liquid-cooled uninterruptible power supply. The transparent sheet 140 is also provided with an elastic button 142, which can control the connection or disconnection of the liquid-cooled uninterruptible power supply.

[0057] The housing 100 is provided with a circuit board assembly 200, such as Figure 2 , Figure 4 and Figure 5As shown, the circuit board assembly 200 includes a main upper circuit board 210, a lower circuit board 220, a plurality of power tubes 240 and a plurality of capacitors 250. A portion of the power tubes 240 and capacitors 250 are fixedly connected to the upper circuit board 210, and another portion of the power tubes 240 and capacitors 250 are fixedly connected to the lower circuit board 220. The power tubes 240 and capacitors 250 on the upper circuit board 210 are arranged opposite to the power tubes 240 and capacitors 250 on the lower circuit board 220, that is, the upper circuit board 210 and the lower circuit board 220 are combined together in an upper and lower buckle manner. The liquid cooling plate 400 is installed between the upper circuit board 210 and the lower circuit board 220, and the upper circuit board 210, the liquid cooling plate 400 and the lower circuit board 220 are stacked together from top to bottom, so that the upper circuit board 210 and the lower circuit board 220 share the same liquid cooling plate 400 for heat dissipation.

[0058] Specifically, Figure 2 , Figure 4 and Figure 5 As shown, the capacitor 250 and the power tube 240 are arranged alternately on the upper circuit board 210 and / or the lower circuit board 220. In order to further increase the heat dissipation efficiency, the liquid-cooled uninterruptible power supply further includes an upper heat dissipation plate 310 and a lower heat dissipation plate 320. Figure 2 As shown, the upper heat sink 310 is disposed between the upper circuit board 210 and the liquid cooling plate 400, and the lower heat sink 320 is disposed between the liquid cooling plate 400 and the lower circuit board 220, and the upper heat sink 310, the liquid cooling plate 400 and the lower circuit board 220 are closely attached together. Preferably, the upper heat sink 310 and the lower heat sink 320 are flat plates made of metal such as aluminum with good thermal conductivity.

[0059] like Figure 4 and Figure 6 As shown, the power tube 240 on the upper circuit board 210 is tightly attached to the upper heat sink 310. Figure 5 and Figure 6 As shown, the power tube 240 on the lower circuit board 220 is closely attached to the lower heat sink 320. Figure 6 As shown, a part of the power tubes 240 are fixedly connected to the upper heat sink 310 by fasteners such as screws, and another part of the power tubes 240 are fixedly connected to the lower heat sink 320 by fasteners such as screws.

[0060] like Figure 6As shown, the upper heat sink 310 and the lower heat sink 320 are both provided with heat sink support columns 330. One end of the heat sink support column 330 is fixedly connected to the upper heat sink 310 or the lower heat sink 320. Figure 7 As shown, the other end of the heat dissipation support column 330 is detachably connected to the upper circuit board 210 or the lower circuit board 220 through fasteners such as screws.

[0061] During installation, the lower heat sink 320 with the power tube 240 installed is placed at the corresponding position of the lower circuit board 220 with the power tube 240 facing downward, and the lower circuit board 220 is connected and fixed to the heat dissipation support column 330 with screws or other fasteners on the back of the lower circuit board 220. Then, wave soldering is performed after the other components on the lower circuit board 220 are plugged in. The power tube 240 and the upper heat sink 310 are installed together in a similar manner as described above, which will not be described in detail here. Figure 8 As shown, the lower circuit board 220 with the power tube 240 installed is placed in the lower box 120, and the outer edge area of ​​the lower circuit board 220 is connected and fixed to the lower box 120 by the support column 150.

[0062] like Fig. 9 and Fig.10 As shown, the liquid cooling plate 400 includes a flat plate 430, a liquid inlet 410 and a liquid outlet 420. The flat plate 430 is provided with a flow channel 431 for circulating cooling liquid. The liquid inlet 410 and the liquid outlet 420 are opened on the outer surface of the flat plate 430. The liquid inlet 410 is connected to the input end of the flow channel 431, and the liquid outlet 420 is connected to the output end of the flow channel 431.

[0063] like Fig. 9 and Fig.11 As shown, the liquid cooling plate 400 further includes a boss 440, which is disposed on two sides of the flat plate 430 and is fixedly connected to the upper heat sink 310 and the lower heat sink 320. The boss 440 is provided with a fixing hole (441) for fixing the boss 440 with the upper heat sink 310 and / or the lower heat sink 320. The liquid cooling plate 400 further includes a groove 450, which is disposed between two adjacent bosses 440. Figure 2 As shown, the capacitor 250 is accommodated in the groove 450 .

[0064] like Fig.12 As shown, after the lower circuit board 220 and the lower heat sink 320 are placed in the lower box 120, the liquid cooling plate 400 is placed therein, and the liquid cooling plate 400 is connected and fixed to the lower heat sink 320 of the lower circuit board 200 by fasteners such as screws through the fixing holes (441) on the boss 440.

[0065] like Fig.13 As shown, the upper circuit board 210 is placed downward with the upper heat sink 310 facing downward, and the support column 150 is connected and fixed to the upper circuit board 210 from the back side of the upper circuit board 210 with screws or other fasteners; then the upper box body 110 is buckled on, and the upper box body 110 is connected and fixed to the welding nut columns on the upper circuit board 210 with screws or other fasteners from the outside.

[0066] like Fig.14 As shown, the lower case 120, the upper circuit board 210, the liquid cooling plate 400, the lower circuit board 220 and the upper case 110 of the liquid-cooled uninterruptible power supply are stacked together from top to bottom. The upper circuit board 210 and the lower circuit board 220 are assembled together in a buckled manner, and the liquid cooling plate 400 is installed between the upper circuit board 210 and the lower circuit board 220.

[0067] The liquid-cooled uninterruptible power supply adopts a liquid cooling plate 400 for heat dissipation, and eliminates the fan, thereby reducing the volume of the liquid-cooled uninterruptible power supply. The upper circuit board 210 and the lower circuit board 220 are buckled up and down, and share a liquid cooling plate 400 for heat dissipation, further compressing the volume of the liquid-cooled uninterruptible power supply. At the same time, dust and fine particles in the environment cannot enter the interior of the liquid-cooled uninterruptible power supply, greatly improving the operating safety of the liquid-cooled uninterruptible power supply.

[0068] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A liquid-cooled uninterruptible power supply, characterized in that: include: Housing (100); A circuit board assembly (200) installed in the housing (100), the circuit board assembly (200) comprising an upper circuit board (210), a lower circuit board (220) and a plurality of power tubes (240); a portion of the power tubes (240) are fixedly connected to the upper circuit board (210), and another portion of the power tubes (240) are fixedly connected to the lower circuit board (220); the power tubes (240) on the upper circuit board (210) and the power tubes (240) on the lower circuit board (220) are arranged opposite to each other; A liquid cooling plate (400) is installed between the upper circuit board (210) and the lower circuit board (220); The upper circuit board (210), the liquid cooling plate (400) and the lower circuit board (220) are stacked together in sequence from top to bottom.

2. The liquid-cooled uninterruptible power supply according to claim 1, characterized in that: It also includes an upper heat sink (310) and a lower heat sink (320), wherein the upper heat sink (310) is arranged between the upper circuit board (210) and the liquid cooling plate (400), and the lower heat sink (320) is arranged between the liquid cooling plate (400) and the lower circuit board (220), and the upper heat sink (310), the liquid cooling plate (400) and the lower circuit board (220) are tightly fitted together.

3. The liquid-cooled uninterruptible power supply according to claim 2, characterized in that: The power tube (240) on the upper circuit board (210) is tightly fitted with the upper heat sink (310); and the power tube (240) on the lower circuit board (220) is tightly fitted with the lower heat sink (320).

4. The liquid-cooled uninterruptible power supply according to claim 3, characterized in that: The power tube (240) is fixedly connected to the upper heat sink (310) and / or the lower heat sink (320).

5. The liquid-cooled uninterruptible power supply according to claim 4, characterized in that: The upper heat sink (310) and the lower heat sink (320) are both provided with heat sink support columns (330); one end of the heat sink support column (330) on the upper heat sink (310) is fixedly connected to the upper heat sink (310), and the other end is detachably connected to the upper circuit board (210); one end of the heat sink support column (330) on the lower heat sink (320) is fixedly connected to the lower heat sink (320), and the other end is detachably connected to the lower circuit board (220).

6. The liquid-cooled uninterruptible power supply according to claim 5, characterized in that: The liquid cooling plate (400) comprises a flat plate (430), a liquid inlet (410) and a liquid outlet (420); a flow channel (431) for circulating cooling liquid is provided in the flat plate (430); the liquid inlet (410) and the liquid outlet (420) are arranged on the outer surface of the flat plate (430); the liquid inlet (410) is connected to the input end of the flow channel (431); and the liquid outlet (420) is connected to the output end of the flow channel (431).

7. The liquid-cooled uninterruptible power supply according to claim 6, characterized in that: The liquid cooling plate (400) further comprises a boss (440), wherein the boss (440) is arranged on two side surfaces of the flat plate (430) and is fixedly connected to the upper heat dissipation plate (310) and the lower heat dissipation plate (320).

8. The liquid-cooled uninterruptible power supply according to claim 7, characterized in that: The boss (440) is provided with a fixing hole (441) for fixing the boss (440) with the upper heat dissipation plate (310) and / or the lower heat dissipation plate (320).

9. The liquid-cooled uninterruptible power supply according to claim 7 or 8, characterized in that: The liquid cooling plate (400) further comprises a groove (450), wherein the groove (450) is arranged between two adjacent bosses (440); and the circuit board assembly (200) further comprises a plurality of capacitors (250), wherein the capacitors (250) are accommodated in the groove (450).

10. The liquid-cooled uninterruptible power supply according to claim 1, characterized in that: The housing (100) comprises an upper box (110), a lower box (120) and a support column (150); one end of the support column (150) is fixedly connected to the upper circuit board (210) and the upper box (110), and the other end of the support column (150) is fixedly connected to the lower circuit board (220) and the lower box (120).

11. The liquid-cooled uninterruptible power supply according to claim 10, characterized in that: The circuit board assembly (200) further comprises a display panel (230), wherein the display panel (230) is electrically connected to the upper circuit board (210) and the lower circuit board (220).

12. The liquid-cooled uninterruptible power supply according to claim 11, characterized in that: It also comprises a transparent sheet (140), wherein the transparent sheet (140) is arranged on the housing (100), a light guide column (141) is arranged on the transparent sheet (140), one end of the light guide column (141) is fixedly connected to the transparent sheet (140), and the other end is connected to the display panel (230).

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