High-efficiency heat dissipation power supply filter

Abstract

The invention discloses an efficient heat dissipation power supply filter, which belongs to the technical field of production of power supply filters, and comprises a filter shell, a filter element, heat dissipation fins, a heat dissipation fan, a bottom plate, a heat dissipation plate, a refrigerant box, a crankshaft, a piston, a connecting rod and a fan box, the two cooling plates of the interlayer structure are installed on the upper face and the lower face of the filter shell respectively and connected with the two sets of cooling fins respectively, the refrigerant box is installed on the outer wall of one side of the filter shell, the fan box is installed on the outer wall of the refrigerant box, a rotating shaft of a fan motor is connected with the crankshaft through a transmission shaft, and the crankshaft is rotationally connected with the piston through a connecting rod. The upper end and the lower end of the refrigerant box are respectively communicated and connected with the inner cavities of the two heat dissipation plates; and the inner cavities of the two heat dissipation plates are communicated and connected through a refrigerant pipe. Liquid cooling heat dissipation and air cooling heat dissipation are achieved at the same time, the heat dissipation effect is remarkably improved, the heat dissipation balance is improved, the overall size of a product is reduced, heat sources are reduced, and cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of production of power supply filters, and in particular relates to a power supply filter with high-efficiency heat dissipation. Background Art

[0002] The power supply filter is used to filter the power line. Its filtering circuit is generally composed of capacitors, inductors and resistors. The input end is connected to the DC power supply and the output end is connected to the load. It can effectively filter out the frequency point of a specific frequency in the power line or the frequency other than the frequency point to obtain a power signal of a specific frequency, or eliminate the power signal after a specific frequency.

[0003] The power filter will generate heat during operation. The amount of heat generated is related to the current, the power of the filter element, etc. In order to avoid or reduce the impact of the heating of the filter element on the performance of the filter element itself, a heat dissipation structure is generally provided on the housing of the power filter.

[0004] The heat dissipation structure of a traditional power filter is generally a heat dissipation fin, which has the function of increasing the heat dissipation area. A heat dissipation structure with better heat dissipation effect also includes a heat dissipation fan, which can increase the air flow speed and improve the heat dissipation effect.

[0005] However, for power filters that use high-power, high-current filter elements, the heat generated is much higher than that of general power filters. The heat dissipation structure of the above-mentioned traditional power filters cannot achieve efficient heat dissipation, and the internal heat will gradually increase. Long-term use will cause the performance of the filter elements to degrade or even be damaged, thereby reducing the filtering effect and affecting the normal operation of the load equipment. Summary of the invention

[0006] The purpose of the present invention is to provide a power filter that achieves efficient heat dissipation by integrating multiple heat dissipation structures in order to solve the above problems.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0008] A power filter with high efficiency in heat dissipation comprises a filter housing, a filter element, heat dissipation fins and a heat dissipation fan, wherein the filter element is placed in the filter housing, and the heat dissipation fins and the heat dissipation fan are installed on the outer wall of the filter housing. The power filter with high efficiency in heat dissipation also comprises a base plate, a heat dissipation plate, a refrigerant box, a crankshaft, a piston, a connecting rod and a fan box, wherein the heat dissipation plates of two sandwich structures are respectively installed on the upper and lower sides of the filter housing, and two groups of heat dissipation fins are respectively installed on the upper heat dissipation plate and the lower heat dissipation plate, and the lower group of heat dissipation fins is installed on the upper side of the base plate, the refrigerant box is installed on the outer wall of one side of the filter housing, and the fan box is installed on the outer wall of the refrigerant box, and the upper and lower ends of the fan box are respectively provided with an upper air duct and a lower air duct connected to each other, and an opening is provided on one side of the upper air duct and the opening is aligned with the heat dissipation fin above, and an opening is provided on one side of the lower air duct and the opening is aligned with the The heat dissipation fins below, the fan motor and fan blades of the heat dissipation fan are all installed in the fan box, the piston, the connecting rod and the crankshaft with a bent and protruding middle part to one side are all installed in the refrigerant box, the rotating shaft of the fan motor is connected to one end of the transmission shaft, the other end of the transmission shaft passes through the corresponding side walls of the fan box and the refrigerant box and is connected to one end of the crankshaft, the other end of the crankshaft is connected to the corresponding side wall of the refrigerant box through a bearing, one end of the connecting rod is rotatably connected to the middle part of the crankshaft, the other end of the connecting rod is rotatably connected to the piston, the lateral outer peripheral edge of the piston is in sealing contact with the inner wall of the refrigerant box and can move vertically, the upper and lower ends of the refrigerant box are respectively connected to the inner cavities of one end of the two heat dissipation plates through a guide pipe, the inner cavities of the other ends of the two heat dissipation plates are connected through a refrigerant pipe, and the refrigerant box, the guide pipe, the refrigerant pipe and the inner cavities of the two heat dissipation plates are all filled with liquid refrigerant.

[0009] Preferably, in order to achieve a better cooling effect, the liquid refrigerant is cooling water or cooling oil.

[0010] Preferably, for ease of application, two wiring terminals are respectively installed on the other two outer walls of the filter housing, and the inner ends of the four wiring terminals are respectively connected to the corresponding filter elements.

[0011] Preferably, in order to save costs, the side wall between the fan box and the refrigerant box is a common side wall.

[0012] The beneficial effects of the present invention are:

[0013] The heat dissipation of the filter element is achieved by moving the coolant from one heat sink to another, thereby significantly improving the heat dissipation effect. The liquid refrigerant in the two heat sinks is driven by the vertical reciprocating movement of the piston to continuously and repeatedly flow, which has a better heat dissipation effect than static liquid on the one hand, and can better transfer the heat from the high-heat position on the filter housing (corresponding to the position of the filter element with high heat generation) to other positions on the other hand, further improving the heat dissipation balance and avoiding the long-term accumulation of heat at the high-heat position. The rotating shaft of the fan motor and the crankshaft are connected by a transmission shaft, so as to achieve the purpose of driving the fan blades and the piston with one motor at the same time, thereby reducing the overall volume of the product, reducing the heat source (i.e., reducing the driving motor of one liquid-cooled heat dissipation component) and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is one of the three-dimensional diagrams of the power filter with high efficiency heat dissipation of the present invention;

[0015] Figure 2 This is the second stereogram of the power filter with high efficiency heat dissipation according to the present invention, and Figure 1 Different perspectives;

[0016] Figure 3 It is a right side view of the power filter with high efficiency heat dissipation of the present invention;

[0017] Figure 4 yes Figure 3 AA cross-sectional structure diagram in;

[0018] Figure 5 yes Figure 4 Enlarged view of "B" in the figure;

[0019] Figure 6 The schematic diagram of the three-dimensional cross-sectional structure of the power filter with high efficiency heat dissipation of the present invention after removing the fan motor and a side plate of the fan box is shown in FIG. Figure 3 The section view position is the same as in . DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] like Figure 1-Figure 6As shown, the power filter with high efficiency heat dissipation of the present invention comprises a filter housing 9, a filter element 11, a heat dissipation fin 5, a heat dissipation fan, a bottom plate 1, a heat dissipation plate 7, a refrigerant box 6, a crankshaft 14, a piston 12, a connecting rod 13 and a fan box 4, the filter element 11 is placed in the filter housing 9, the heat dissipation fin 5 and the heat dissipation fan are installed on the outer wall of the filter housing 9, the heat dissipation plates 7 of two sandwich structures are respectively installed on the upper and lower sides of the filter housing 9, and the two groups of heat dissipation fins 5 are respectively installed on the upper and lower sides of the upper heat dissipation plate 7. The bottom of the plate 7, a group of heat dissipation fins 5 below are installed on the top of the bottom plate 1, the refrigerant box 6 is installed on the outer wall of one side of the filter housing 9, the fan box 4 is installed on the outer wall of the refrigerant box 6, the upper end and the lower end of the fan box 4 are respectively provided with an upper air duct 3 and a lower air duct 2 that are connected to each other, one side of the upper air duct 3 is provided with an opening and the opening is aligned with the upper heat dissipation fin 5, one side of the lower air duct 2 is provided with an opening and the opening is aligned with the lower heat dissipation fin 5, the fan motor 18 and the fan blades 16 of the heat dissipation fan are installed in the fan box 4, the piston 12, The connecting rod 13 and the crankshaft 14 with a bent protrusion in the middle are both installed in the refrigerant box 6. The rotating shaft of the fan motor 18 is connected to one end of the transmission shaft 17. The other end of the transmission shaft 17 passes through the corresponding side walls of the fan box 4 and the refrigerant box 6 and is connected to one end of the crankshaft 14. The transmission shaft 17 is connected to the corresponding side wall through a bearing (not visible in the figure). The other end of the crankshaft 14 is connected to the corresponding side wall of the refrigerant box 6 through a bearing (not visible in the figure). One end of the connecting rod 13 is rotatably connected to the middle part of the crankshaft 14, and the other end of the connecting rod 13 is connected to the piston 12. Rotating connection, the lateral peripheral edge of the piston 12 is in sealing contact with the inner wall of the refrigerant box 6 and can move vertically, the upper end and the lower end of the refrigerant box 6 are respectively connected to the inner cavity of one end of the two heat sinks 7 through a plurality of flow guide tubes 15, and the inner cavities at the other ends of the two heat sinks 7 are connected through a plurality of refrigerant tubes 10, the plurality of flow guide tubes 15 and the plurality of refrigerant tubes 10 are respectively located outside the outer walls on opposite sides of the filter housing 9, and the refrigerant box 6, the flow guide tubes 15, the refrigerant tubes 10 and the inner cavities of the two heat sinks 7 are all filled with liquid refrigerant (not shown in the figure).

[0022] Preferably, in order to achieve a better cooling effect, the liquid refrigerant is cooling water or cooling oil; for ease of application, two wiring terminals 8 (i.e., two power input terminals and two power output terminals) are respectively installed on the other two side outer walls of the filter housing 9, and the inner ends of the four wiring terminals 8 are respectively connected to the filter elements 11; in order to save costs, the side wall between the fan box 4 and the refrigerant box 6 is the same common side wall.

[0023] like Figure 1-Figure 6As shown, when in use, the power filter is installed on other equipment through the mounting holes at both ends of the base plate 1, and the four wiring terminals 8 are respectively connected to the DC power supply and the load; after starting to run, the fan motor 18 drives the fan blades 16 and the crankshaft 14 to rotate synchronously, the upper air duct 3 blows (or sucks) air to the upper heat dissipation fins 5, and the lower air duct 2 sucks (or blows) air to the lower heat dissipation fins 5, so that the air in the area where the two groups of heat dissipation fins 5 are located flows, and the purpose of air cooling and heat dissipation is achieved; at the same time, the rotation of the crankshaft 14 drives the piston 12 to reciprocate vertically, so that the liquid refrigerant flows back and forth continuously, on the one hand, compared with the static liquid, it has a better heat dissipation effect, and on the other hand, it can better transfer the heat of the high-heat position on the filter housing 9 (corresponding to the position of the filter element 11 with high heat generation) to other positions, further improve the heat dissipation balance, and avoid the heat accumulation of the high-heat position for a long time, so as to achieve the purpose of good liquid cooling and heat dissipation; air cooling and liquid cooling are carried out simultaneously, which significantly improves the heat dissipation effect of the entire power filter.

[0024] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A power filter with high efficiency heat dissipation, comprising a filter housing, a filter element, a heat dissipation fin and a heat dissipation fan, wherein the filter element is placed in the filter housing, and the heat dissipation fin and the heat dissipation fan are installed on the outer wall of the filter housing, characterized in that: The high-efficiency heat dissipation power supply filter also includes a base plate, a heat sink, a refrigerant box, a crankshaft, a piston, a connecting rod and a fan box. The two sandwich structure heat sinks are respectively installed on the upper and lower sides of the filter housing, and two groups of the heat fins are respectively installed on the upper side of the heat sink and on the lower side of the heat sink. The lower group of the heat fins is installed on the upper side of the base plate. The refrigerant box is installed on the outer wall of one side of the filter housing, and the fan box is installed on the outer wall of the refrigerant box. The upper and lower ends of the fan box are respectively provided with an upper air duct and a lower air duct that are interconnected. An opening is provided on one side of the upper air duct and the opening is aligned with the upper heat fin, and an opening is provided on one side of the lower air duct and the opening is aligned with the lower heat fin. The fan motor and fan blades of the heat dissipation fan are installed in the fan box. , the connecting rod and the crankshaft with a bent and protruding middle portion to one side are both installed in the refrigerant box, the rotating shaft of the fan motor is connected to one end of the transmission shaft, the other end of the transmission shaft passes through the corresponding side walls of the fan box and the refrigerant box and is connected to one end of the crankshaft, the other end of the crankshaft is connected to the corresponding side wall of the refrigerant box through a bearing, one end of the connecting rod is rotatably connected to the middle portion of the crankshaft, the other end of the connecting rod is rotatably connected to the piston, the lateral outer peripheral edge of the piston is in sealing contact with the inner wall of the refrigerant box and can move vertically, the upper and lower ends of the refrigerant box are respectively connected to the inner cavities of one end of the two heat sinks through a guide pipe, and the inner cavities of the other ends of the two heat sinks are connected through a refrigerant pipe, and the refrigerant box, the guide pipe, the refrigerant pipe and the inner cavities of the two heat sinks are all filled with liquid refrigerant.

2. The power filter with high efficiency heat dissipation according to claim 1, characterized in that: The liquid refrigerant is cooling water or cooling oil.

3. The power filter with high efficiency heat dissipation according to claim 1 or 2, characterized in that: Two connection terminals are respectively installed on the other two outer walls of the filter housing, and the inner ends of the four connection terminals are respectively connected to the filter elements correspondingly.

4. The power filter with high efficiency heat dissipation according to claim 1 or 2, characterized in that: The side wall between the fan box and the refrigerant box is a common side wall.

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