Heat dissipation device of active power filter

Abstract

The utility model belongs to the technical field of power filters, and particularly relates to an active power filter heat dissipation device which comprises a shell. A cooling mechanism is arranged on the inner side of the shell, a heat dissipation mechanism is arranged on the top side of the shell, limiting mechanisms are symmetrically arranged on the inner side of the shell, the cooling mechanism comprises a hollow plate, connecting pipes are fixed to the two ends of the hollow plate, a heat conduction pad is fixed to the inner side of a heat conduction plate, and a filter body is placed on the inner side of the shell. Copper pipes are symmetrically fixed to the top side of the hollow plate, a heat dissipation shell is fixed to the top side of the shell, a cavity is formed in the inner side of the heat dissipation shell, heat generated by the filter body is transmitted to cooling liquid on the inner side of the heat conduction plate through a heat conduction pad, the cooling liquid is heated, evaporated and transferred into the cavity in the inner side of the heat dissipation shell, and the heat is dissipated into air. The cooling liquid is conveyed back to the inner side of the hollow plate through the copper pipe, so that the cooling liquid circularly flows on the inner side of the heat-conducting plate, and the problem that a filter is overheated and damaged due to low heat dissipation efficiency of an existing heat dissipation device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power filters, in particular to an active power filter heat dissipation device. Background Art

[0002] Active power filters can reduce harmonics and other pollutants in the power network. They are a power quality optimization device that has the function of improving the quality and reliability of the power system. Therefore, active power filters are often used in hospitals, data centers, factories and other places with strict requirements on power quality. In order to ensure the normal operation of active power filters, heat dissipation devices are required to cool them.

[0003] A heat dissipation device for an active power filter with announcement number CN202930948U is based on a mounting plate. A plug-in heat sink is tightly attached to the surface of the mounting plate. A heat dissipation fan fixing frame is provided at the heat dissipation outlet of the plug-in heat sink. A heat dissipation fan is fixedly installed on the heat dissipation fan fixing frame. An IGBT module is provided on the outer surface of the plug-in heat sink. Heat is transferred to the air through the plug-in heat sink, and the heat dissipation fan drives the air flow to improve the heat dissipation efficiency of the device. The structure is simple and easy to use.

[0004] There are still problems in the heat dissipation device of the active power filter described above. The heat dissipation device only dissipates heat through a fan. Since the power filter generates a large amount of heat, the heat dissipation effect of the device is poor, causing the power filter to be easily overheated and damaged. Therefore, an active power filter heat dissipation device is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the heat dissipation devices on the market only dissipate heat through fans. Since the power filter generates a large amount of heat, the heat dissipation effect of the device is poor, causing the power filter to be easily overheated and damaged. The utility model proposes an active power filter heat dissipation device.

[0006] The technical solution adopted by the utility model to solve its technical problem is: an active power filter heat dissipation device described in the utility model includes a shell; a cooling mechanism is provided on the inner side of the shell, a heat dissipation mechanism is provided on the top side of the shell, a limiting mechanism is symmetrically provided on the inner side of the shell, and a hollow plate is fixed to the bottom end of the side of the shell.

[0007] Preferably, the cooling mechanism includes a hollow plate, connecting pipes are fixed at both ends of the hollow plate, and the connecting pipes are connected to the inner side of the hollow plate, a heat conducting plate is fixed on the top side of the connecting pipe, a heat conducting pad is fixed on the inner side of the heat conducting plate, a filter body is placed on the inner side of the shell, and the filter body and the heat conducting pad are tightly fitted, copper pipes are symmetrically fixed on the top side of the hollow plate, a heat dissipation shell is fixed on the top side of the shell, a cavity is opened on the inner side of the heat dissipation shell, the top end of the heat conducting plate passes through the shell and is fixedly connected to the heat dissipation shell, the inner side of the heat conducting plate is connected to the cavity, the heat conducting plate is connected to the inner side of the connecting pipe, and the copper pipe is connected to the inner cavity of the heat dissipation shell, and the heat conducting plate and the heat dissipation shell are used in conjunction with each other, so that the coolant absorbs heat and automatically circulates inside it, dissipating the heat into the air, with higher heat dissipation efficiency, ensuring that the filter can operate normally.

[0008] Preferably, the heat dissipation mechanism includes a heat dissipation shell, a heat dissipation plate is fixed on the top side of the heat dissipation shell, heat dissipation fins are evenly fixed on the top side of the heat dissipation plate, a fan is fixed on the top side of the heat dissipation fins, a glass tube is fixed at the center of the top side of the hollow plate, the glass tube is connected with the hollow plate and the inner side of the cavity respectively, a scale groove is provided on the circumferential surface of the glass tube, a water valve is fixedly installed at the center of the bottom side of the hollow plate, and slide grooves are symmetrically provided on the inner side of the shell, and the heat dissipation fins cooperate with the fan to improve the cooling efficiency of the coolant and prevent the cooling efficiency of the device from decreasing due to the increase of the coolant temperature.

[0009] Preferably, the limiting mechanism includes a slide groove, a card block is slidably installed on the inner side of the slide groove, a spring is fixedly connected between the card block and one end of the inner side of the slide groove, the card block is buckled on the side of the filter body, and a limiting plate is symmetrically fixed on the inner side of the shell, and the limiting plate is buckled on the other side of the filter body. Through the structure of the limiting plate and the card block, the filter can be conveniently disassembled and assembled while being able to limit it to prevent the filter from falling off from the inside of the shell during use.

[0010] The utility model is beneficial in that:

[0011] 1. The utility model adopts a structural design of an active power filter heat sink and sets a cooling mechanism. The heat generated by the filter body is transferred to the coolant inside the heat conducting plate through the thermal pad, causing it to evaporate due to heat and then move to the cavity inside the heat dissipation shell. The steam is liquefied when it encounters cold inside the cavity, dissipating the heat into the air and then transported back to the inside of the hollow plate by the copper tube, so that the coolant circulates inside the heat conducting plate, thereby cooling the filter body and solving the problem of low heat dissipation efficiency of existing heat dissipation devices, which causes overheating and damage to the filter.

[0012] 2. The utility model adopts a structural design of an active power filter heat dissipation device. By setting a heat dissipation mechanism, the heat inside the heat dissipation shell is transferred to the air through the heat dissipation plate and the heat dissipation fins. When the fan is turned on, the heated air inside the heat dissipation fins is drawn out, and the air is driven to flow inside the heat dissipation fins, thereby accelerating the cooling efficiency of the coolant inside the heat dissipation shell and preventing the cooling effect of the device from decreasing due to the increase in the coolant temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure;

[0015] Figure 2 This is a sectional view of the main three-dimensional structure of the cooling mechanism;

[0016] Figure 3 It is a rear-view sectional view of the three-dimensional structure of the heat dissipation mechanism;

[0017] Figure 4 It is a side view of the three-dimensional structure of the limiting mechanism;

[0018] Figure 5 It is a schematic diagram of the overall rear-view three-dimensional structure.

[0019] In the figure: 1. Shell; 2. Hollow plate; 3. Connecting pipe; 4. Heat conducting plate; 5. Heat conducting pad; 6. Filter body; 7. Heat dissipation shell; 8. Cavity; 9. Copper tube; 10. Heat dissipation plate; 11. Heat dissipation fins; 12. Fan; 13. Glass tube; 14. Scale groove; 15. Water valve; 16. Limit plate; 17. Slide; 18. Block; 19. Spring; 20. Partition. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4As shown, an active power filter heat dissipation device includes a housing 1; a cooling mechanism is provided on the inner side of the housing 1, a heat dissipation mechanism is provided on the top side of the housing 1, a limiting mechanism is symmetrically provided on the inner side of the housing 1, and a hollow plate 2 is fixed to the bottom end of the side of the housing 1;

[0022] See also Figure 2 As shown, the cooling mechanism includes a hollow plate 2, connecting pipes 3 are fixed at both ends of the hollow plate 2, and the connecting pipes 3 are communicated with the inner side of the hollow plate 2, a heat conducting plate 4 is fixed on the top side of the connecting pipe 3, a heat conducting pad 5 is fixed on the inside of the heat conducting plate 4, a filter body 6 is placed on the inside of the shell 1, and the filter body 6 is tightly fitted with the heat conducting pad 5, copper tubes 9 are symmetrically fixed on the top side of the hollow plate 2, a heat dissipation shell 7 is fixed on the top side of the shell 1, a cavity 8 is opened on the inside of the heat dissipation shell 7, the top of the heat conducting plate 4 passes through the shell 1 and is fixedly connected to the heat dissipation shell 7, the inside of the heat conducting plate 4 is communicated with the cavity 8, the heat conducting plate 4 is communicated with the inside of the connecting pipe 3, and the copper tube 9 is communicated with the cavity 8 inside the heat dissipation shell 7; when working, when encountering the existing heat dissipation When the heat device only dissipates heat through the insert heat sink and the heat dissipation effect is poor, the filter body 6 is located on the inner side of the shell 1 through the structure of the cooling mechanism, and is tightly fitted with the thermal pads 5 on both sides. At this time, the heat generated by the filter body 6 is transferred to the coolant on the inner side of the heat conducting plate 4 through the thermal pad 5, causing it to evaporate due to heat, and thus move to the cavity 8 inside the heat dissipation shell 7, and the steam is liquefied when it is cooled inside the cavity 8, dissipating the heat into the air. At the same time, the cooled coolant flows through the inclined surface inside the cavity 8 to the top side of the copper tube 9, and is then transported back to the inner side of the hollow plate 2 by the copper tube 9, so that the coolant circulates inside the heat conducting plate 4, thereby cooling the filter body 6 and ensuring that the operating temperature of the filter body 6 is within a suitable range.

[0023] See also Figure 3 As shown, the heat dissipation mechanism includes a heat dissipation shell 7, a heat dissipation plate 10 is fixed on the top side of the heat dissipation shell 7, and heat dissipation fins 11 are evenly fixed on the top side of the heat dissipation plate 10. A fan 12 is fixed on the top side of the heat dissipation fins 11, and a glass tube 13 is fixed at the center of the top side of the hollow plate 2. The glass tube 13 is connected with the hollow plate 2 and the inner side of the cavity 8 respectively. A scale groove 14 is opened on the circumferential surface of the glass tube 13, and a water valve 15 is fixedly installed at the center of the bottom side of the hollow plate 2. The inner side of the shell 1 is symmetrically opened with a slide groove 17; during operation, when the coolant temperature rises and the cooling effect of the device is reduced, the heat inside the heat dissipation shell 7 is transferred to the air through the heat dissipation plate 10 and the heat dissipation fins 11 through the structure of the heat dissipation mechanism. The fan 12 is turned on to draw out the heated air inside the heat dissipation fins 11, and the air is driven to flow inside the heat dissipation fins 11, thereby accelerating the cooling efficiency of the coolant inside the heat dissipation shell 7 and preventing the coolant temperature from rising and causing the cooling effect of the device to decrease.

[0024] See also Figure 4 As shown, the limiting mechanism includes a slide groove 17, a card block 18 is slidably installed on the inner side of the slide groove 17, and a spring 19 is fixedly connected between the card block 18 and one end of the inner side of the slide groove 17, the card block 18 is buckled on the side of the filter body 6, and a limiting plate 16 is symmetrically fixed on the inner side of the shell 1, and the limiting plate 16 is buckled on the other side of the filter body 6; during operation, when the power filter is prone to falling off, the card block 18 is pushed to retract to the inner side of the slide groove 17 through the structure of the limiting mechanism. At this time, the filter body 6 is placed on the inner side of the shell 1 so that its side is in close contact with the limiting plate 16. At this time, the card block 18 is released, and the spring 19 pushes the card block 18 out through its own elastic force and is buckled on the other end of the filter body 6, thereby limiting the filter body 6 and preventing the filter body 6 from falling off from the inner side of the shell 1.

[0025] See also Figure 5 As shown, a partition 20 is fixed on the inner side of the shell 1; during operation, when the heat generated by the filter is transferred to the copper tube 9, affecting the cooling effect, the filter body 6 and the copper tube 9 are separated by the structure of the partition 20 to prevent heat from being transferred to the copper tube 9 and affecting the circulation of the coolant.

[0026] Working principle: Active power filter can reduce harmonics and other pollutants in the power network. It is a power quality optimization device that has the function of improving the quality and reliability of the power system. Therefore, active power filters are often used in hospitals, data centers, factories and other places with strict requirements on power quality. In order to ensure the normal operation of the active power filter, a heat dissipation device is required to cool it. The existing heat dissipation device only dissipates heat through the plug-in heat sink. Since the power filter generates a lot of heat, the heat dissipation effect of the device is poor, causing the power filter to be easily overheated and damaged. In order to solve this problem, a cooling mechanism and a heat dissipation mechanism are set to push the block 18 to shrink to the inside of the slide groove 17. At this time, the filter body 6 is placed on the inside of the shell 1 so that its side is in close contact with the limit plate 16. At this time, the block 18 is released, and the spring 19 pushes the block 18 out through its own elastic force and is buckled on the other end of the filter body 6, thereby filtering. The filter body 6 is limited. At this time, the filter body 6 is tightly fitted with the thermal pads 5 on both sides. The heat generated by it is transferred to the cooling liquid inside the heat conducting plate 4 through the thermal pads 5, causing it to evaporate due to the heat, and then move to the cavity 8 inside the heat dissipation shell 7. The steam is cooled and liquefied inside the cavity 8, and the heat is dissipated into the air. At the same time, the cooled cooling liquid flows through the inclined surface inside the cavity 8 to the top side of the copper tube 9, and then is transported back to the inside of the hollow plate 2 by the copper tube 9, so that the cooling liquid circulates inside the heat conducting plate 4, thereby cooling the filter body 6. At the same time, the fan 12 is turned on to extract the air heated inside the heat dissipation fins 11, and by driving the air to flow inside the heat dissipation fins 11, the efficiency of cooling the cooling liquid inside the heat dissipation shell 7 is accelerated, and the cooling effect of the device is reduced due to the increase in the coolant temperature, thereby ensuring that the filter body 6 will not be damaged by overheating after long-term operation, solving the problem that the existing heat dissipation device has low heat dissipation efficiency and causes overheating damage to the filter.

[0027] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An active power filter heat sink, characterized in that: It comprises a shell (1); a cooling mechanism is provided on the inner side of the shell (1); a heat dissipation mechanism is provided on the top side of the shell (1); a limiting mechanism is symmetrically provided on the inner side of the shell (1); and a hollow plate (2) is fixed to the bottom end of the side surface of the shell (1); The cooling mechanism comprises a hollow plate (2), connecting pipes (3) are fixed at both ends of the hollow plate (2), and the connecting pipes (3) are communicated with the inner side of the hollow plate (2), a heat conducting plate (4) is fixed on the top side of the connecting pipe (3), a heat conducting pad (5) is fixed on the inner side of the heat conducting plate (4), a filter body (6) is placed on the inner side of the shell (1), and the filter body (6) and the heat conducting pad (5) are tightly fitted, a copper pipe (9) is symmetrically fixed on the top side of the hollow plate (2), a heat dissipation shell (7) is fixed on the top side of the shell (1), a cavity (8) is opened on the inner side of the heat dissipation shell (7), and the top end of the heat conducting plate (4) passes through the shell (1) and is fixedly connected to the heat dissipation shell (7).

2. The active power filter heat sink according to claim 1, wherein: The inner side of the heat conducting plate (4) is in communication with the cavity (8), the heat conducting plate (4) is in communication with the inner side of the connecting pipe (3), and the copper pipe (9) is in communication with the cavity (8) inside the heat dissipation shell (7).

3. The active power filter heat sink according to claim 2, wherein: The heat dissipation mechanism comprises a heat dissipation shell (7), a heat dissipation plate (10) is fixed on the top side of the heat dissipation shell (7), heat dissipation fins (11) are evenly fixed on the top side of the heat dissipation plate (10), a fan (12) is fixed on the top side of the heat dissipation fins (11), and a glass tube (13) is fixed at the center of the top side of the hollow plate (2).

4. The active power filter heat sink according to claim 3, characterized in that: The glass tube (13) is communicated with the inner side of the hollow plate (2) and the cavity (8) respectively. A graduated groove (14) is provided on the circumferential surface of the glass tube (13). A water valve (15) is fixedly installed at the center of the bottom side of the hollow plate (2). A sliding groove (17) is symmetrically provided on the inner side of the housing (1).

5. The active power filter heat sink according to claim 4, characterized in that: The limiting mechanism comprises a slide groove (17), a clamping block (18) is slidably mounted inside the slide groove (17), and a spring (19) is fixedly connected between the clamping block (18) and one end inside the slide groove (17).

6. The active power filter heat sink according to claim 5, characterized in that: The clamping block (18) is buckled on the side of the filter body (6), a limiting plate (16) is symmetrically fixed on the inner side of the housing (1), and the limiting plate (16) is buckled on the other side of the filter body (6).

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