Double-cylinder type permanent magnet speed regulator with good heat dissipation effect

Abstract

The invention relates to the technical field of double-cylinder type permanent magnet speed regulators, and discloses a double-cylinder type permanent magnet speed regulator with a good heat dissipation effect, which comprises a double-cylinder type permanent magnet speed regulator body and a protective shell arranged on the surface of the double-cylinder type permanent magnet speed regulator body, and further comprises a first exhaust hole arranged in the protective shell, and one side of the protective shell is fixedly connected with an extending blocking shell, the bottoms of the two sides of the protective shell are fixedly connected with mounting blocks, mounting holes are formed in the mounting blocks, and a cover plate is hinged to one side of the top of the protective shell. A refrigerator body is installed in a water cooling box, liquid circulating in the water cooling box can be secondarily cooled, in the using process, a pump head can be opened to pump cooling liquid in the water cooling box into a water conveying pipe, then the cooling liquid is discharged into a cold discharging pipe, and due to the fact that one side of the cold discharging pipe is closer to a double-cylinder type permanent magnet speed regulator body, the cooling liquid can be discharged into the cold discharging pipe; therefore, air around the surface of the double-cylinder type permanent magnet speed regulator body can be cooled, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of double-barrel permanent-magnet speed regulators, in particular to a double-barrel permanent-magnet speed regulator with good heat dissipation effect. Background Art

[0002] The double-barrel permanent magnet speed regulator is an intelligent speed regulation device commonly used in the field of industrial motor speed control. Its main function is to achieve real-time, accurate and reversible regulation of the motor speed. It has the advantages of fast response speed, high control accuracy, energy saving and environmental protection, and is widely used in speed regulation control of various transmission equipment such as fans, water pumps, compressors, etc. The double-barrel permanent magnet speed regulator is mainly composed of two rotating permanent magnet synchronous motors and a magnetic field controller. Among them, one permanent magnet synchronous motor is used as the controlled motor, and its rotor is connected to the load; the other permanent magnet synchronous motor is connected to the magnetic field controller to generate a control magnetic field, thereby changing the speed of the controlled motor. The magnetic field controller calculates the required control magnetic field size and direction according to the control algorithm, and then drives the controlled motor to achieve the corresponding speed adjustment.

[0003] At present, in normal use, the double-barrel permanent magnet speed regulator is usually installed in an open environment, such as a factory workshop or indoor space, and then through the air flow in the working environment, these speed regulators can dissipate the generated heat to the surrounding environment through natural convection, and then cool it down and dissipate the heat through the cold air in the environment. However, this heat dissipation method relies too much on natural air. For example, when encountering hot weather, the heat dissipation effect will not keep up with the usage demand, resulting in affecting the normal operation of the speed regulator.

[0004] Therefore, the present invention designs a double-cylinder permanent magnet speed regulator with good heat dissipation effect. Summary of the invention

[0005] The object of the present invention is to provide a double-cylinder permanent magnet speed regulator with good heat dissipation effect to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a double-cylinder permanent magnet speed regulator with good heat dissipation effect, comprising a double-cylinder permanent magnet speed regulator body and a protective shell arranged on the surface of the double-cylinder permanent magnet speed regulator body, and also comprising:

[0007] A first exhaust hole is arranged inside the protective shell, an extension stop shell is fixedly connected to one side of the protective shell, mounting blocks are fixedly connected to the bottoms of both sides of the protective shell, mounting holes are opened inside the mounting blocks, a cover plate is hingedly connected to one side of the top of the protective shell, a second exhaust hole is opened inside the cover plate, and a connecting shell is fixedly connected to the front side of the protective shell;

[0008] A support plate is fixed to one side of the protective shell, and a water cooling component is arranged inside the protective shell, and the water cooling component includes a cold row pipe and a water cooling box. The front and rear sides of the protective shell are fixedly connected with connecting blocks, and an annular guide rail is fixedly connected between the opposite sides of the two connecting blocks, and an annular groove is opened inside the annular guide rail, and teeth are fixedly connected inside the annular guide rail. A heat dissipation component is arranged inside the annular guide rail, and the heat dissipation component includes a slider, an extension plate and a gear.

[0009] Preferably, the double-cylinder permanent magnet speed regulator body includes a motor shaft, a speed regulating mechanism, a conductor cylinder, a permanent magnet cylinder, a load shaft and a speed regulator body, the speed regulating mechanism is installed on one side of the conductor cylinder, the motor shaft is installed on one side of the speed regulating mechanism, the conductor cylinder is installed on one side of the speed regulator body, the permanent magnet cylinder is installed on the other side of the speed regulator body, and the load shaft is installed on one side of the permanent magnet cylinder.

[0010] Preferably, a heat conducting sheet is provided on the surface of the speed regulator body, and a plurality of heat conducting grooves are formed on the surface of the heat conducting sheet.

[0011] Preferably, the two sliders are respectively slidably connected to the top and bottom of the inner cavity of the annular groove, the extension plate is fixed to one side of the slider, a DC motor is fixedly connected to one side of the extension plate, the output end of the DC motor passes through one side of the extension plate and is installed with a gear, the surface of the gear is meshed with the teeth, and cooling fans are installed on the top and bottom of the opposite sides of the two extension plates.

[0012] Preferably, partitions are fixedly connected to the front and rear sides of the annular guide rail, and semicircular grooves for wiring are provided on the top and bottom of one side of the interior of the protective shell.

[0013] Preferably, the radiator pipe is arranged inside the protective shell, and the two ends of the front side of the radiator pipe are respectively connected to a water supply pipe and a drainage pipe, the water cooling box is fixed to the top of the support plate, one end of the drainage pipe is connected to the water cooling box, one end of the water supply pipe is connected to a pump head, the bottom of the pump head is fixedly connected to the support plate, and one side of the pump head is connected to the water cooling box through a pipeline.

[0014] Preferably, a refrigerator body is installed inside the water cooling box, a fixing block is sleeved on the surface of the radiator pipe, and one side of the fixing block is fixedly connected to the inner wall of the protective shell.

[0015] Preferably, a reinforcement plate is fixedly connected to the bottom of the support plate, and a side of the reinforcement plate close to the protective shell is fixedly connected to the protective shell.

[0016] Preferably, the front side of the cover plate is fixedly connected to a first clamping plate, the front side of the inside of the connecting shell is fixedly connected to a spring, the rear side of the spring is fixedly connected to a second clamping plate, the front side of the second clamping plate is fixedly connected to a pull rod, and the front side of the pull rod passes through the outside of the connecting shell and is fixedly connected to the pull plate.

[0017] Preferably, reinforcement blocks are fixedly connected to both sides of the connecting shell, and the side of the reinforcement block close to the protective shell is fixedly connected to the protective shell.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention first installs a refrigerator body in the water cooling box, so that the liquid circulating inside the water cooling box can be cooled twice. During use, the pump head can be opened to pump the coolant inside the water cooling box into the inside of the water pipe, and then discharged into the cold discharge pipe. Because one side of the cold discharge pipe is closer to the double-barrel permanent magnet speed regulator body, the air around the surface of the double-barrel permanent magnet speed regulator body can be cooled, thereby improving the heat dissipation effect;

[0020] 2. The present invention sets a heat dissipation component. When the two DC motors are turned on, the gears can engage with the teeth inside the annular guide rail. At that time, the extension plate will drive the slider to reciprocate in the inner half circle of the annular groove. In combination with the setting of four heat dissipation fans, the cold air emitted by the radiator pipe is blown to the surface of the double-cylinder permanent magnet speed regulator body through the four heat dissipation fans for efficient heat dissipation. The setting of the partition plate can make the gears reciprocate in radius inside the annular guide rail for heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a double-barrel permanent magnet speed regulator with good heat dissipation effect provided by the present invention;

[0022] Figure 2 A schematic diagram of the unfolded structure of the cover plate provided by the present invention;

[0023] Figure 3 A schematic diagram of the internal top view of the protective shell provided by the present invention;

[0024] Figure 4 A schematic diagram of the structure of a water cooling assembly provided by the present invention;

[0025] Figure 5 Schematic diagram of the heat dissipation component structure provided by the present invention

[0026] Figure 6 Schematic diagram of the cross-sectional structure of the connection shell provided by the present invention

[0027] Figure 7 This is a schematic diagram of the main structure of the double-cylinder permanent magnet speed regulator provided by the present invention.

[0028] In the figure: 1. Double-cylinder permanent magnet speed regulator body; 101. Motor shaft; 102. Speed ​​regulating mechanism; 103. Conductor cylinder; 104. Permanent magnet cylinder; 105. Load shaft; 106. Speed ​​regulator body; 2. Protective shell; 201. Extended baffle shell; 3. First exhaust hole; 4. Mounting block; 5. Mounting hole; 6. Cover plate; 7. Second exhaust hole; 8. Connecting shell; 9. Support plate; 10. Water cooling assembly; 1001. Cooling pipe; 1002. Water cooling box; 1003. Water pipe; 1004. Drain pipe; 1005. Pump head ; 1006, refrigerator body; 1007, fixed block; 11, connecting block; 12, annular guide rail; 121, annular groove; 122, teeth; 13, heat dissipation assembly; 1301, slider; 1302, extension plate; 1303, DC motor; 1304, gear; 1305, cooling fan; 14, heat conducting plate; 15, heat conducting groove; 16, partition; 17, semicircular groove; 18, first clamping plate; 19, spring; 20, second clamping plate; 21, pull rod; 22, pull plate; 23, reinforcement plate; 24, reinforcement block. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-7 As shown, a double-cylinder permanent magnet speed regulator with good heat dissipation effect includes a double-cylinder permanent magnet speed regulator body 1 and a protective shell 2 arranged on the surface of the double-cylinder permanent magnet speed regulator body 1, and also includes: a first exhaust hole 3 arranged inside the protective shell 2, through which the surface of the double-cylinder permanent magnet speed regulator body 1 can be protected from dust, and the first exhaust hole 3 and the second exhaust hole 7 can increase the fluidity of the surrounding air when the double-cylinder permanent magnet speed regulator body 1 is working, so as to achieve the effect of improving heat dissipation, and one side of the protective shell 2 is fixedly connected with an extension baffle 201, and the extension baffle 201 1 can protect one end of the motor shaft 101 to prevent foreign objects from falling on the motor shaft 101. The bottoms of both sides of the protective shell 2 are fixedly connected with mounting blocks 4, and mounting holes 5 are provided inside the mounting blocks 4. The protective shell 2 is conveniently installed and fixed by matching the mounting blocks 4 with the mounting holes 5. A cover plate 6 is hinged on one side of the top of the protective shell 2, and a second exhaust hole 7 is provided inside the cover plate 6. A connecting shell 8 is fixedly connected to the front side of the protective shell 2, and the cover plate 6 is conveniently limited by the connecting shell 8. The setting of the cover plate 6 makes it convenient to open the cover to perform maintenance work on the double-cylinder permanent magnet speed regulator body 1;

[0031] A support plate 9 is fixed to one side of the protective shell 2. A water cooling assembly 10 is arranged inside the protective shell 2. The water cooling assembly 10 includes a cold row pipe 1001 and a water cooling box 1002. The front and rear sides of the protective shell 2 are fixedly connected with connecting blocks 11. The connecting blocks 11 facilitate the installation of the annular guide rail 12. The annular guide rail 12 is located on the surface of the double-cylinder permanent magnet governor body 1. The annular guide rail 12 is fixedly connected between the two opposite sides of the connecting blocks 11. An annular groove 121 is provided inside the annular guide rail 12. The semi-circular heat dissipation assembly 13 can be realized by matching the annular groove 121 with the teeth 122. The annular guide rail 12 is fixedly connected with teeth 122 inside, and the front and rear sides inside the annular guide rail 12 are fixedly connected with partitions 16. Through the setting of the partitions 16, the heat dissipation component 13 can be restricted to make it rotate in a semicircular manner, and the semicircular grooves 17 facilitate the connection of cables to the heat dissipation component 13 to ensure that the cables will not be entangled. The top and bottom of one side of the inner side of the protective shell 2 are provided with semicircular grooves 17 for wiring. The heat dissipation component 13 is arranged inside the annular guide rail 12, and the heat dissipation component 13 includes a slider 1301, an extension plate 1302 and a gear 1304.

[0032] The double-cylinder permanent magnet speed regulator body 1 includes a motor shaft 101, a speed regulating mechanism 102, a conductor cylinder 103, a permanent magnet cylinder 104, a load shaft 105 and a speed regulator body 106. The speed regulating mechanism 102 is installed on one side of the conductor cylinder 103, the motor shaft 101 is installed on one side of the speed regulating mechanism 102, the conductor cylinder 103 is installed on one side of the speed regulator body 106, the permanent magnet cylinder 104 is installed on the other side of the speed regulator body 106, and the load shaft 105 is installed on one side of the permanent magnet cylinder 104. The torque transmission principle of the permanent magnet speed regulator is the same as that of the coupler. The speed regulating mechanism 102 is added on the basis of the coupler. The conductor can be adjusted through the electric actuator. The effective coupling area with the permanent magnet changes the torque transmitted between the two, realizes adjustable and controllable torque output, and achieves the purpose of load speed regulation and energy saving. This is the prior art, and this scheme will not be elaborated in detail, and those skilled in the art can clearly understand the working principle. A heat conducting sheet 14 is provided on the surface of the speed regulator body 106, and a plurality of heat conducting grooves 15 are provided on the surface of the heat conducting sheet 14. The heat conducting sheet 14 cooperates with the heat conducting grooves 15 to conduct the heat generated by the double-cylinder permanent magnet speed regulator body 1 during operation, and then facilitates the heat dissipation work, and the heat conducting grooves 15 are opened in a ring array, so as to facilitate the subsequent heat dissipation work.

[0033] The two sliders 1301 are respectively slidably connected to the top and bottom of the inner cavity of the annular groove 121, and the extension plate 1302 is fixed to one side of the slider 1301. A DC motor 1303 is fixedly connected to one side of the extension plate 1302. The output end of the DC motor 1303 passes through one side of the extension plate 1302 and is installed with a gear 1304. The surface of the gear 1304 is meshed with the teeth 122. Turning on the DC motor 1303 can make the gear 1304 mesh with the teeth 122 inside the annular guide rail 12 and rotate. At that time, the extension plate 1302 will drive the slider 1301 to reciprocate in the inner half circle of the annular groove 121, and then cooperate with the setting of the cooling fan 1305 to blow air to dissipate heat to the heat conductive sheet 14 after absorbing heat. Cooling fans 1305 are installed on the top and bottom of the opposite side of the two extension plates 1302.

[0034] The cold exhaust pipe 1001 is arranged inside the protective shell 2, and the two ends of the front side of the cold exhaust pipe 1001 are respectively connected with the water pipe 1003 and the drain pipe 1004, the water cooling box 1002 is fixed on the top of the support plate 9, one end of the drain pipe 1004 is connected with the water cooling box 1002, and one end of the water pipe 1003 is connected with the pump head 1005, and the bottom of the pump head 1005 is fixedly connected with the support plate 9. The refrigerator body 1006 is installed in the water cooling box 1002, so that the liquid circulating inside the water cooling box 1002 can be cooled again. During use, the pump head 1005 can be opened to pump the coolant inside the water cooling box 1002 into the water pipe 1003, and then discharged to the cold exhaust pipe 1001. One side of the cold exhaust pipe 1001 is closer to the binocular permanent magnet speed regulator body 1, so the air around the surface of the binocular permanent magnet speed regulator body 1 can be cooled, thereby improving the heat dissipation effect. One side of the pump head 1005 is connected to the water cooling box 1002 through a pipeline. A refrigerator body 1006 is installed inside the water cooling box 1002. The setting of the refrigerator body 1006 facilitates the cooling of the liquid inside the water cooling box 1002. A fixed block 1007 is provided on the surface of the cold exhaust pipe 1001. The fixed connection between the fixed block 1007 and the protective shell 2 can improve the stability of the installation of the cold exhaust pipe 1001 inside the protective shell 2. One side of the fixed block 1007 is fixedly connected to the inner wall of the protective shell 2.

[0035] A reinforcing plate 23 is fixedly connected to the bottom of the support plate 9, and the side of the reinforcing plate 23 close to the protective shell 2 is fixedly connected to the protective shell 2. The fixed connection between the reinforcing plate 23 and the protective shell 2 can improve the connection strength between the support plate 9 and the protective shell 2, thereby improving the stability of the support of the water cooling box 1002. The front side of the cover plate 6 is fixedly connected to the first clamping plate 18, the front side of the inside of the connecting shell 8 is fixedly connected to the spring 19, the rear side of the spring 19 is fixedly connected to the second clamping plate 20, the front side of the second clamping plate 20 is fixedly connected to the pull rod 21, and the front side of the pull rod 21 passes through the outside of the connecting shell 8 and is fixedly connected to the pull plate 22. When the user needs to open the cover 6 to maintain the double-cylinder permanent magnet speed regulator body 1, first pull the pull plate 22. At this time, the pull plate 22 will drive the pull rod 21 to move. When the pull rod 21 moves, it will drive the second clamping plate 20 to press the spring 19. Then the second clamping plate 20 will be separated from the surface of the first clamping plate 18, and the cover 6 can be opened for maintenance. Reinforcement blocks 24 are fixedly connected to both sides of the connecting shell 8. The side of the reinforcement block 24 close to the protective shell 2 is fixedly connected to the protective shell 2. The fixed connection between the reinforcement block 24 and the protective shell 2 facilitates the installation and fixing work between the connecting shell 8 and the protective shell 2.

[0036] Working principle: First, when the double-cylinder permanent magnet speed regulator body 1 is working, the refrigerator body 1006 is installed in the water cooling box 1002, so that the liquid circulating inside the water cooling box 1002 can be cooled again. During use, the pump head 1005 can be opened to pump the coolant inside the water cooling box 1002 to the inside of the water pipe 1003, and then discharged to the inside of the cold exhaust pipe 1001. Because one side of the cold exhaust pipe 1001 is closer to the double-cylinder permanent magnet speed regulator body 1, the air around the surface of the double-cylinder permanent magnet speed regulator body 1 can be cooled, thereby improving the heat dissipation effect. At the same time, the heat conductive sheet 14 cooperates with the heat conductive groove 15 to absorb the heat emitted by the double-cylinder permanent magnet speed regulator body 1, and then the two DC motors 1303 are turned on to make the gear 1304 engage the teeth 122 inside the annular guide rail 12, and then the extension plate 1302 will drive the slider 1301 to The inner half circle of the annular groove 121 rotates back and forth, and cooperates with the setting of the cooling fan 1305 to blow air to the heat conductive plate 14 after absorbing heat to dissipate heat, and the cold exhaust pipe 1001 is located on the outside of the cooling fan 1305, so the air blown by the cooling fan 1305 is cooled, thereby achieving the effect of efficient heat dissipation, and the cold exhaust pipe 1001 can transport the cooling liquid to the inside of the water cooling box 1002 through the drain pipe 1004, and then cooperate with the pump head 1005 to circulate the cooled liquid to maintain the cooling effect. When the user needs to open the cover 6 to maintain the double-barrel permanent magnet speed regulator body 1, first pull the pull plate 22, at this time the pull plate 22 will drive the pull rod 21 to move, and when the pull rod 21 moves, it will drive the second clamping plate 20 to press the spring 19, and then the second clamping plate 20 will be separated from the surface of the first clamping plate 18, and the cover 6 can be opened for maintenance.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-cylinder permanent magnet speed regulator with good heat dissipation effect, comprising a double-cylinder permanent magnet speed regulator body (1) and a protective shell (2) arranged on the surface of the double-cylinder permanent magnet speed regulator body (1), characterized in that: Also includes: A first exhaust hole (3) is arranged inside the protective shell (2); an extension stop shell (201) is fixedly connected to one side of the protective shell (2); mounting blocks (4) are fixedly connected to the bottoms of both sides of the protective shell (2); mounting holes (5) are provided inside the mounting blocks (4); a cover plate (6) is hingedly connected to one side of the top of the protective shell (2); a second exhaust hole (7) is provided inside the cover plate (6); and a connecting shell (8) is fixedly connected to the front side of the protective shell (2); A support plate (9) is fixed to one side of a protective shell (2); a water cooling assembly (10) is arranged inside the protective shell (2); the water cooling assembly (10) comprises a cooling radiator (1001) and a water cooling box (1002); connection blocks (11) are fixedly connected to the front and rear sides of the protective shell (2); an annular guide rail (12) is fixedly connected between the opposite sides of the two connection blocks (11); an annular groove (121) is provided inside the annular guide rail (12); teeth (122) are fixedly connected inside the annular guide rail (12); a heat dissipation assembly (13) is arranged inside the annular guide rail (12); the heat dissipation assembly (13) comprises a slider (1301), an extension plate (1302) and a gear (1304).

2. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: The double-cylinder permanent magnet speed regulator body (1) comprises a motor shaft (101), a speed regulating mechanism (102), a conductor cylinder (103), a permanent magnet cylinder (104), a load shaft (105) and a speed regulator body (106); the speed regulating mechanism (102) is mounted on one side of the conductor cylinder (103), the motor shaft (101) is mounted on one side of the speed regulating mechanism (102), the conductor cylinder (103) is mounted on one side of the speed regulator body (106), the permanent magnet cylinder (104) is mounted on the other side of the speed regulator body (106), and the load shaft (105) is mounted on one side of the permanent magnet cylinder (104).

3. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 2, characterized in that: A heat conducting sheet (14) is provided on the surface of the speed regulator body (106), and a plurality of heat conducting grooves (15) are provided on the surface of the heat conducting sheet (14).

4. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: The two sliders (1301) are respectively slidably connected to the top and bottom of the inner cavity of the annular groove (121); the extension plate (1302) is fixed to one side of the slider (1301); a DC motor (1303) is fixedly connected to one side of the extension plate (1302); an output end of the DC motor (1303) passes through one side of the extension plate (1302) and is installed with a gear (1304); a surface of the gear (1304) is meshed with the teeth (122); and cooling fans (1305) are installed on the top and bottom of opposite sides of the two extension plates (1302).

5. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: The front and rear sides of the annular guide rail (12) are fixedly connected with partitions (16), and the top and bottom of one side of the interior of the protective shell (2) are provided with semicircular grooves (17) for wiring.

6. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: The cold discharge pipe (1001) is arranged inside the protective shell (2); the two ends of the front side of the cold discharge pipe (1001) are respectively connected to a water supply pipe (1003) and a drainage pipe (1004); the water cooling box (1002) is fixed to the top of the support plate (9); one end of the drainage pipe (1004) is connected to the water cooling box (1002); one end of the water supply pipe (1003) is connected to a pump head (1005); the bottom of the pump head (1005) is fixedly connected to the support plate (9); and one side of the pump head (1005) is connected to the water cooling box (1002) through a pipeline.

7. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 6, characterized in that: A refrigerator body (1006) is installed inside the water cooling box (1002), a fixing block (1007) is sleeved on the surface of the cold exhaust pipe (1001), and one side of the fixing block (1007) is fixedly connected to the inner wall of the protective shell (2).

8. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: A reinforcing plate (23) is fixedly connected to the bottom of the support plate (9), and the reinforcing plate (23) is fixedly connected to the protective shell (2) on a side close to the protective shell (2).

9. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: The front side of the cover plate (6) is fixedly connected to a first clamping plate (18), the front side of the interior of the connecting shell (8) is fixedly connected to a spring (19), the rear side of the spring (19) is fixedly connected to a second clamping plate (20), the front side of the second clamping plate (20) is fixedly connected to a pull rod (21), and the front side of the pull rod (21) passes through the outside of the connecting shell (8) and is fixedly connected to a pull plate (22).

10. A double-barrel permanent magnet speed regulator with good heat dissipation effect according to claim 1, characterized in that: Reinforcement blocks (24) are fixedly connected to both sides of the connection shell (8), and the side of the reinforcement block (24) close to the protective shell (2) is fixedly connected to the protective shell (2).

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