A water-cooled radiator for frequency converter

Abstract

The present invention discloses a frequency converter water-cooled radiator, comprising a heat sink arranged on the heat dissipation surface of the frequency converter A, the water inlet end of the heat sink being connected with the water outlet end of an expansion tank through a water inlet pipe, the water outlet end of the heat sink being connected with the water return end of the expansion tank through a water outlet pipe, the water inlet pipe and the water outlet pipe being provided with a one-way valve to prevent water backflow; a compression box is arranged on the right side of the expansion box, a lever is arranged above the compression box and the expansion box, the lower end of the lever is rotatably connected with the upper end of a fulcrum rod, and the lower end of the fulcrum rod is fixedly connected with the top of the expansion box; a second piston block is slidably fitted inside the expansion box, a first piston block is slidably fitted inside the compression box, and a first piston rod is arranged on the upper end of the first piston block. The present invention is designed to target the drawbacks of the existing device, and utilizes air cooling, compression refrigeration and water cooling to dissipate heat and reduce temperature, thereby effectively improving the heat dissipation effect of the frequency converter A, greatly improving the heat dissipation effect, and having strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation equipment, in particular to a frequency converter water-cooling radiator. Background Art

[0002] The variable-frequency drive (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. The inverter is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, and microprocessor unit. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT's disconnection, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, inverters have also been widely used.

[0003] The existing water cooling heat dissipation method can only use the advantage of water's large specific heat capacity for heat exchange. This heat exchange method is relatively simple and cannot be combined with air cooling for heat dissipation. The heat dissipation effect is poor. In view of the above problems, an improved inverter water cooling radiator is now provided. Summary of the invention

[0004] The object of the present invention is to provide a water-cooled radiator for a frequency converter to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A frequency converter water-cooled radiator, comprising a heat sink arranged on a heat dissipation surface of the frequency converter A, wherein a water inlet end of the heat sink is connected to a water outlet end of an expansion tank via a water inlet pipe, and a water outlet end of the heat sink is connected to a water return end of the expansion tank via a water outlet pipe, and a one-way valve for preventing water backflow is arranged on both the water inlet pipe and the water outlet pipe;

[0007] A compression box is provided on the right side of the expansion box, and a lever is provided above the compression box and the expansion box, the lower end of the lever is rotatably connected to the upper end of the fulcrum rod, and the lower end of the fulcrum rod is fixedly connected to the top of the expansion box;

[0008] A second piston block is slidably matched inside the expansion box, and a first piston block is slidably matched inside the compression box. A first piston rod is provided at the upper end of the first piston block, and the upper end of the first piston rod is rotatably connected to a first sliding sleeve provided on the outer side of the lever;

[0009] A second piston rod is disposed at the upper end of the second piston block, and the upper end of the second piston rod is rotatably connected to a second sliding sleeve disposed on the outer side of the lever;

[0010] The left end of the lever is connected to a driving assembly for the end of the lever to rise and fall. Driven by the driving assembly, the lever continuously drives the two piston blocks to reciprocate up and down through the first piston rod and the second piston rod;

[0011] A water tank is provided at the bottom of the expansion box, and the air inlet end on the lower right side of the water tank is connected to the exhaust end at the bottom of the compression box through an air supply pipe. A one-way valve and a pressure-limiting valve are provided on the air supply pipe. An air inlet is provided on the lower right side of the compression box, and a one-way valve is provided at the air inlet.

[0012] As a further solution of the present invention: an air supply pipe is provided at the exhaust end on the left side of the expansion box, the left end of the air supply pipe extends into the bottom of the heat dissipation box, and an exhaust nozzle is provided at the exhaust end of the air supply pipe, and an exhaust port is provided at the upper end of the heat dissipation box.

[0013] As a further solution of the present invention: the compression box is made of a metal material with good thermal conductivity, and a plurality of heat dissipation fins are distributed in an array on the outer side of the compression box.

[0014] As a further solution of the present invention: a rotating shaft is provided inside the expansion box where the water storage tank is located, and blades are distributed in an array outside the rotating shaft.

[0015] As a further solution of the present invention: a limit stopper is provided inside the expansion box for limiting the descending stroke of the second piston block.

[0016] As a further solution of the present invention: the expansion tank and the compression tank are connected and fixed by a fixing rod.

[0017] As a further solution of the present invention: the drive assembly includes a drive motor arranged at the upper end of the expansion tank, a rotating disk is provided at the output end of the drive motor, a fixed rod is provided at an eccentric position on the surface of the rotating disk, the fixed rod is rotatably connected to the lower end of the transmission rod, and the upper end of the transmission rod is rotatably connected to the left end of the lever.

[0018] As a further solution of the present invention: a liquid pump is provided on the water outlet pipe to promote the liquid to enter the heat dissipation box.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the present invention is designed to address the drawbacks of the existing devices, and utilizes air cooling, compression refrigeration and water cooling to dissipate heat and reduce temperature, thereby effectively improving the heat dissipation effect of the inverter A, greatly improving the heat dissipation effect, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the back side of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0023] Among them: frequency converter A, air nozzle 2, water inlet pipe 3, one-way valve 4, water outlet pipe 5, rotating shaft 6, water storage tank 7, blades 8, limit block 9, air supply pipe 10, expansion box 11, heat dissipation fins 12, first piston block 13, compression box 14, first piston rod 15, first sliding sleeve 16, lever 17, fulcrum rod 18, second sliding sleeve 19, second piston rod 21, transmission rod 22, rotating disk 23, second piston block 24, air supply pipe 25, exhaust port 26, heat dissipation box 27, drive motor 231. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1-3In an embodiment of the present invention, a frequency converter water-cooling radiator includes a heat sink 27 disposed on a heat dissipation surface of the frequency converter A, wherein the water inlet end of the heat sink 27 is connected to the water outlet end of the expansion tank 11 through a water inlet pipe 3, and the water outlet end of the heat sink 27 is connected to the water return end of the expansion tank 11 through a water outlet pipe 5, and the water inlet pipe 3 and the water outlet pipe 5 are both provided with a one-way valve 4 to prevent water backflow;

[0029] A compression box 14 is provided on the right side of the expansion box 11, and a lever 17 is provided above the compression box 14 and the expansion box 11. The lower end of the lever 17 is rotatably connected to the upper end of a fulcrum rod 18, and the lower end of the fulcrum rod 18 is fixedly connected to the top of the expansion box 11;

[0030] The expansion box 11 is slidably fitted with a second piston block 24, the compression box 14 is slidably fitted with a first piston block 13, the upper end of the first piston block 13 is provided with a first piston rod 15, the upper end of the first piston rod 15 is rotatably connected with a first sliding sleeve 16 which is slidably provided on the outside of the lever 17;

[0031] The second piston block 24 has a second piston rod 21 at its upper end, and the second piston rod 21 is rotatably connected at its upper end to a second sliding sleeve 19 that is provided on the outer side of the lever 17;

[0032] The left end of the lever 17 is connected to a driving assembly for the end portion to rise and fall. Driven by the driving assembly, the lever 17 continuously drives the two piston blocks to reciprocate up and down through the first piston rod 15 and the second piston rod 21.

[0033] A water tank 7 is provided at the bottom of the expansion tank 11, and the air inlet end at the lower right side of the water tank 7 is connected to the exhaust end at the bottom of the compression tank 14 through the air supply pipe 10. A one-way valve and a pressure-limiting valve are provided on the air supply pipe 10. An air inlet is provided at the lower right side of the compression tank 14, and a one-way valve is provided at the air inlet;

[0034] Under the action of the first piston rod 13, the outside air will be sucked in and then compressed. The compressed air will release a large amount of heat. The compression box 14 is made of a metal material with good thermal conductivity. A plurality of heat dissipation fins 12 are arranged in an array on the outside of the compression box 14. In this way, the heat in the compressed air will be lost quickly. The compressed air will enter the expansion box 11 along the air supply pipe 10. At this time, the second piston block 24 in the expansion box 11 will move upward, thereby further promoting the expansion of the air entering therein. The air expansion will do work externally, thereby further reducing its own temperature, which will reduce the water temperature inside the expansion box 11, thereby improving the water cooling effect;

[0035] The expansion box 11 where the water tank 7 is located is provided with a rotating shaft 6 inside, and blades 8 are distributed in an array outside the rotating shaft 6. After the compressed air enters the expansion box 11, the blades 8 will rotate with the rotating shaft 6, thereby further promoting the full mixing of the expanding air and water to improve the heat exchange effect;

[0036] The expansion box 11 is provided with a limit stopper 9 inside for limiting the descending stroke of the second piston block 24;

[0037] The expansion tank 11 and the compression tank 14 are connected and fixed by a fixing rod;

[0038] An air supply pipe 25 is provided at the exhaust end on the left side of the expansion tank 11, and the left end of the air supply pipe 25 extends into the bottom of the heat sink 27, and an exhaust nozzle is provided at the exhaust end of the air supply pipe 25, so that the cold air generated by compression can be sent into the heat sink 27, thereby further cooling the hot water in the heat sink 27, thereby further improving the heat dissipation effect of the heat sink 27, and an exhaust port 26 is provided at the upper end of the heat sink 27.

[0039] The driving assembly includes a driving motor 231 disposed at the upper end of the expansion tank 11, a rotating disk 23 is disposed at the output end of the driving motor 231, a fixing rod is disposed at an eccentric position on the surface of the rotating disk 23, the fixing rod is rotatably connected to the lower end of the transmission rod 22, and the upper end of the transmission rod 22 is rotatably connected to the left end of the lever 17;

[0040] Under the action of the driving motor 231, the rotating disk 23 drives the left end of the lever 17 to reciprocate up and down through the transmission rod 22.

[0041] The water outlet pipe 5 is provided with a liquid pump to promote the liquid to enter the heat dissipation box 27;

[0042] The working principle of the present invention is as follows: driven by the driving assembly, the lever 17 reciprocates up and down along the fulcrum rod 18. Under the action of the lever 17, the second piston rod 21 drives the second piston block 24 to move downward, thereby sending the water inside the water tank 7 into the heat dissipation box 27. When the second piston block 24 rises, it also sucks the water in the heat dissipation box 27 into the water tank 7, thereby continuously taking away the heat on the inverter A.

[0043] Under the action of the lever 17, the first piston rod 15 drives the first piston block 13 to move up and down. When the first piston block 13 moves downward, the air will be compressed, the temperature of the compressed air will rise, and the high-temperature air will dissipate heat through the wall of the compression box 14. The compressed air in the compression box 14 will be sent to the expansion box. At this time, the second piston block 24 in the expansion box 11 will move upward, thereby further promoting the expansion of the air entering therein. The expanded air will do work externally, thereby further reducing its own temperature, which will reduce the water temperature inside the expansion box 11, thereby improving the water cooling and heat dissipation effect. At the same time, the cold air can also be sent to the heat dissipation box 27, so that the heat dissipation box 27 is air-cooled;

[0044] In this way, air cooling, compression refrigeration and water cooling are used to dissipate heat, thereby effectively improving the heat dissipation effect of inverter A.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A frequency converter water-cooling radiator, comprising a heat sink (27) arranged on a heat dissipation surface of a frequency converter A, wherein a water inlet end of the heat sink (27) is connected to a water outlet end of an expansion tank (11) via a water inlet pipe (3), and a water outlet end of the heat sink (27) is connected to a water return end of the expansion tank (11) via a water outlet pipe (5), and a one-way valve (4) is provided on both the water inlet pipe (3) and the water outlet pipe (5) to prevent water from flowing back; It is characterized in that A compression box (14) is provided on the right side of the expansion box (11), and a lever (17) is provided above the compression box (14) and the expansion box (11), the lower end of the lever (17) is rotatably connected to the upper end of a fulcrum rod (18), and the lower end of the fulcrum rod (18) is fixedly connected to the top of the expansion box (11); A second piston block (24) is slidably fitted inside the expansion box (11), and a first piston block (13) is slidably fitted inside the compression box (14). A first piston rod (15) is provided at the upper end of the first piston block (13), and the upper end of the first piston rod (15) is rotatably connected to a first sliding sleeve (16) provided on the outer side of the lever (17); A second piston rod (21) is provided at the upper end of the second piston block (24), and the upper end of the second piston rod (21) is rotatably connected to a second sliding sleeve (19) provided on the outer side of the lever (17); The left end of the lever (17) is connected to a driving assembly for causing the end of the lever (17) to rise and fall. Driven by the driving assembly, the lever (17) continuously drives the two piston blocks to reciprocate up and down through the first piston rod (15) and the second piston rod (21); A water tank (7) is provided at the bottom of the expansion tank (11); an air inlet at the lower right side of the water tank (7) is connected to an air outlet at the bottom of the compression tank (14) via an air supply pipe (10); a one-way valve (4) and a pressure limiting valve are provided on the air supply pipe (10); an air inlet is provided at the lower right side of the compression tank (14); and a one-way valve (4) is provided at the air inlet; An air supply pipe (25) is provided at the exhaust end on the left side of the expansion box (11), the left end of the air supply pipe (25) extends into the bottom of the heat dissipation box (27), and an exhaust nozzle (2) is provided at the exhaust end of the air supply pipe (25), and an exhaust port (26) is provided at the upper end of the heat dissipation box (27); A rotating shaft (6) is provided inside the expansion tank (11) where the water storage tank (7) is located, and blades (8) are distributed in an array outside the rotating shaft (6); The driving assembly comprises a driving motor (231) arranged at the upper end of the expansion tank (11); a rotating disk (23) is provided at the output end of the driving motor (231); a fixing rod is provided at an eccentric position on the surface of the rotating disk (23); the fixing rod is rotatably connected to the lower end of the transmission rod (22); and the upper end of the transmission rod (22) is rotatably connected to the left end of the lever (17).

2. The inverter water cooling radiator according to claim 1, characterized in that: The compression box (14) is made of a metal material with good thermal conductivity, and a plurality of heat dissipation fins (12) are distributed in an array outside the compression box (14).

3. The inverter water cooling radiator according to claim 1, characterized in that: A limit stopper (9) for limiting the descending stroke of the second piston block (24) is provided inside the expansion box (11).

4. The inverter water cooling radiator according to claim 1, characterized in that: The expansion tank (11) and the compression tank (14) are connected and fixed via a fixing rod.

5. The inverter water cooling radiator according to claim 1, characterized in that: The water outlet pipe (5) is provided with a liquid pump for promoting the liquid to enter the heat dissipation box (27).

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