Low-voltage energy-saving variable-frequency governor with waterproof structure

Abstract

The invention discloses a low-voltage energy-saving variable-frequency governor with a waterproof structure, which relates to the field of variable-frequency governor, and comprises an instrument main body and a rear cover arranged at the rear end of the instrument main body, a front cover is arranged at the front end of the instrument body, a control panel is arranged on the outer side of the front cover in a sleeving mode, a sealed threading plate is arranged in the instrument body, and threading holes are formed in the sealed threading plate. According to the low-voltage energy-saving variable-frequency governor with the waterproof structure, the lower end of the waterproof cover and the interior of the front cover are provided with the magnetic blocks which attract each other, so that the waterproof cover can be tightly attached to the front cover, the situation that the control panel is affected by water flow can be reduced, and two sets of conical sealing pieces can extrude and seal a wire; and in the process, the two sets of conical sealing pieces move towards the threading hole and extrude the threading hole, so that the conical sealing pieces and the threading hole are sealed, water flow is prevented from entering the instrument, and the waterproof effect of the variable-frequency speed regulator is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of variable frequency speed regulators, in particular to a low-voltage energy-saving variable frequency speed regulator with a waterproof structure. Background Art

[0002] A variable frequency speed regulator is an electric power control device used to control industrial equipment. It is used to control the conversion between alternating current and direct current in the circuit of electrical equipment to achieve stable operation of electrical equipment inside the industrial equipment. It is conveniently and widely used in ceramics, electrical engineering, and textiles. However, the existing variable frequency speed regulators still have certain usage defects during use. Although the variable frequency speed regulators in the existing technology have the characteristics of easy heat dissipation, in actual use, the cooling air will inevitably hit the inner wall and filter of the box when flowing out, thereby generating a lot of noise. When the amount of cooling air generated is greater than the outflow amount, it will cause the box to shake violently or even burst.

[0003] The patent authorization announcement number CN222169605U discloses an explosion-proof variable frequency speed regulator. Through the energy absorption mechanism, it can absorb part of the kinetic energy of the airflow to prevent the variable frequency speed regulator housing from shaking due to excessive airflow. When the noise sound waves are transmitted to the noise reduction groove, the noise sound waves will be reflected in all directions, and the noise sound waves on the same path will weaken or offset each other, and the noise intensity will be greatly reduced. At the same time, the noise reduction sponge can also absorb most of the noise sound waves, and also improve the safety of the variable frequency speed regulator housing.

[0004] The patent with patent authorization announcement number CN219247716U discloses a low-voltage energy-saving variable frequency speed regulator, which is used to ventilate the interior of the variable frequency speed regulator body through the provided cooling fan and fan mounting bracket to prevent internal electrical components from overheating and damage. Ventilation holes are opened at the front end and outer end of the variable frequency speed regulator body, and then the clips at both ends of the fan mounting bracket are clamped on the inner wall of the U-shaped loading bracket, and the fan mounting bracket is fixed between the two sets of U-shaped loading brackets from top to bottom with screws, and the cooling fan is installed to the inner wall of the fan mounting bracket. At the same time, a slot is opened inside the fan mounting bracket, and the fan power cord is passed through the inside of the fan mounting bracket to facilitate the cooling fan to be powered on. In this way, when the variable frequency speed regulator is in use, the cooling fan blows air to the interior, thereby improving the heat dissipation effect of the electrical components and extending the service life. In addition, the cooling fan does not consume too much electricity and does not waste electricity excessively.

[0005] In the above-mentioned public patent, the variable frequency speed regulator in the patent solves the above-mentioned problems, but the variable frequency speed regulator still has the following problems. During the operation of the variable frequency speed regulator, the air exchange process inside and outside the instrument needs to be completed through the operation of the cooling fan, and the gas circulation inside and outside the instrument needs to be completed through the ventilation port. If the ventilation port is in an open state, it will cause the instrument to be prone to water flow entering, which is likely to affect the normal use of the variable frequency speed regulator, resulting in the variable frequency speed regulator lacking a certain waterproof effect.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the original variable frequency speed regulator structure. Summary of the Invention

[0007] The purpose of the present invention is to provide a low-voltage energy-saving variable frequency speed regulator with a waterproof structure to solve the problem proposed in the above background technology that during the operation of the variable frequency speed regulator, the air exchange process inside and outside the instrument needs to be completed by the operation of the cooling fan, and the gas circulation inside and outside the instrument needs to be completed through the ventilation port. When the ventilation port is in an open state, it will cause water to easily flow into the instrument, which may easily affect the normal use of the variable frequency speed regulator and cause the variable frequency speed regulator to lack a certain waterproof effect.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-voltage energy-saving variable frequency speed regulator with a waterproof structure, comprising an instrument body and a rear cover arranged at the rear end of the instrument body; a front cover is provided at the front end of the instrument body, and a control panel is provided on the outer side of the front cover, and a waterproof cover is rotatably installed on the outer side of the front cover, and the waterproof cover is located on the outer side of the control panel, a sealed wire threading plate is provided inside the instrument body, and a wire threading hole is provided inside the sealed wire threading plate; a waterproof structure for controlling the sealing of the wire threading hole is provided inside the instrument body, and a cooling structure for rapid heat dissipation is provided on the outer side of the instrument body.

[0009] Preferably, the waterproof structure includes a guide rod, and the guide rod is fixedly installed inside the instrument body, and the guide rod is located between the front cover and the sealing threading plate, and the outer side of the guide rod is slidably installed with a left movable plate and a right movable plate, and the two groups of left movable plates and the two groups of right movable plates are cross-distributed.

[0010] Preferably, a sliding plate is slidably installed inside the left movable plate and the right movable plate, and an arc block is fixedly installed on the side of the sliding plate close to the threading hole, and a conical seal is bonded inside the arc block, and the arc block and the conical seal are arranged corresponding to the threading hole.

[0011] Preferably, the conical seal is made of flexible silicone material, and the end of the conical seal close to the sealing threading plate is located inside the threading hole, and the ends of the two groups of conical seals close to each other are provided with holes for passing the wires, and the end of the threading hole close to the conical seal is a trumpet-shaped structure.

[0012] Preferably, an extrusion plate is fixedly installed on the outer side of the sliding plate, and an extrusion rod is fixedly installed on one end of the extrusion plate close to the front cover, and the extrusion rod is in close contact with the front cover. At the same time, the extrusion plate and the extrusion rod are respectively arranged corresponding to the left moving plate and the right moving plate.

[0013] Preferably, the left movable plate and the right movable plate are rotatably mounted with a rotating rod at one end close to the instrument body, and the rotating rod is rotatably mounted with a driving rod at one end close to the instrument body, and a return spring is sleeved on the outer side of the driving rod, and the driving rod is slidingly connected to the instrument body.

[0014] Preferably, the cooling structure includes ventilation holes and an exhaust fan, the ventilation holes are respectively opened inside the instrument body and the back cover, and the exhaust fan is installed in the ventilation holes opened inside the back cover, and a heat conduction plate is nested inside the back cover.

[0015] Preferably, a cooling frame is fixedly installed on the outside of the heat conducting plate, and the cooling frame is located on the outside of the rear cover, and a heat absorbing plate is fixedly installed equidistantly inside the cooling frame, and a heat dissipating plate is fixedly installed equidistantly on the outside of the cooling frame, and the heat dissipating plate is fixedly connected to the heat absorbing plate.

[0016] Preferably, the cooling structure also includes an upper diverter frame, a lower diverter frame and a collecting frame, and the upper diverter frame, the lower diverter frame and the collecting frame are fixedly installed on the outside of the back cover, and the upper diverter frame, the lower diverter frame and the collecting frame are distributed from top to bottom on the outside of the back cover in sequence, a heat dissipation pipe is fixedly installed between the upper diverter frame and the lower diverter frame, and a heat conduction pipe is fixedly installed between the lower diverter frame and the collecting frame.

[0017] Preferably, a micro water pump and a cooling fan are fixedly mounted on the outer side of the rear cover, and the cooling fan is located between the upper diverter frame and the lower diverter frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are: by setting the internal and external structures of the frequency converter to a sealed state, water can be prevented from entering the interior of the instrument, thereby ensuring the waterproof effect of the frequency converter, and the heat generated by the electrical equipment inside the frequency converter is transported to the outside for cooling, which can ensure the stability of the internal structure of the frequency converter.

[0019] 1. This low-voltage, energy-saving variable frequency speed regulator with a waterproof structure is equipped with two sets of conical seals. The two sets of conical seals can squeeze the wires, so that the wires are sealed between the conical seals. In this process, the two sets of conical seals will move toward the wire threading hole and squeeze, so that the conical seals and the wire threading hole are sealed, preventing water from entering the interior of the instrument, thereby ensuring the waterproof effect of the variable frequency speed regulator. 2. This low-voltage, energy-saving variable frequency speed regulator with a waterproof structure is equipped with a waterproof cover, which is installed on the outside of the control panel. The lower end of the waterproof cover and the inside of the front cover are provided with mutually attractive magnetic blocks, which can ensure that the waterproof cover and the front cover fit tightly, thereby reducing the impact of water flow on the control panel. 3. Furthermore, ventilation holes and exhaust fans are provided, and the hot air inside the instrument can be discharged to the outside through the operation of the exhaust fans, eliminating the need for openings on the outside of the instrument for heat dissipation, thereby ensuring the sealing of the instrument and thus ensuring the waterproof effect of the variable frequency speed regulator; 4. Furthermore, a heat conducting plate, a heat absorbing plate and a heat dissipating plate are provided. The heat conducting plate can absorb the heat of the instrument body, and the heat absorbing plate and the heat dissipating plate can absorb the heat of the heat conducting plate. At the same time, the heat dissipating plate can use the outside air to dissipate heat, thereby completing the initial heat dissipation of the instrument. 5. Furthermore, by flowing the coolant inside the cooling frame, the coolant can absorb the heat inside the cooling frame, and the cooling fan can dissipate the high-temperature coolant inside the heat pipe, thereby ensuring the heat dissipation effect of the variable frequency speed regulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a top view; Figure 2 This is a schematic diagram of the top three-dimensional structure of the upper diverter frame of the present invention; Figure 3 This is a schematic diagram of the top view of the three-dimensional structure of the guide rod of the present invention; Figure 4 This is a schematic top view of the three-dimensional structure of the left moving plate of the present invention; Figure 5 This is a schematic top view of the three-dimensional structure of the conical seal of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the extrusion rod of the present invention from a top view; Figure 7 This is a schematic diagram of the three-dimensional structure of the instrument body of the present invention from a top view; Figure 8 This is a schematic diagram of the three-dimensional structure of the cooling frame of the present invention from a top view; Figure 9 This is a schematic diagram of the three-dimensional structure of the heat conducting plate of the present invention from a top view; Figure 10 It is a schematic top view of the three-dimensional structure of the heat absorbing plate of the present invention.

[0021] In the figure: 1. Instrument body; 2. Back cover; 3. Front cover; 4. Control panel; 5. Waterproof cover; 6. Sealing threading plate; 7. Threading hole; 8. Guide rod; 9. Left moving plate; 10. Right moving plate; 11. Sliding plate; 12. Arc block; 13. Conical seal; 14. Extrusion plate; 15. Extrusion rod; 16. Rotating rod; 17. Driving rod; 18. Return spring; 19. Ventilation hole; 20. Exhaust fan; 21. Heat conduction plate; 22. Cooling frame; 23. Heat absorbing plate; 24. Heat dissipation plate; 25. Upper diverter frame; 26. Lower diverter frame; 27. Heat pipe; 28. Heat conduction pipe; 29. ​​Collecting frame; 30. Cooling fan; 31. Micro water pump. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0023] Embodiment 1: The present invention provides the following technical solution: a low-voltage energy-saving variable frequency speed regulator with a waterproof structure, such as Figures 1-6 As shown, in order to solve the problem that the existing variable frequency speed regulator lacks waterproof function, the specific waterproof process of the variable frequency speed regulator is disclosed, and the variable frequency speed regulator can achieve the waterproof effect. The specific content is as follows: The instrument body 1 and the rear cover 2 set at the rear end of the instrument body 1; the front end of the instrument body 1 is provided with a front cover 3, and the outer side of the front cover 3 is sleeved with a control panel 4, and the outer side of the front cover 3 is rotatably installed with a waterproof cover 5, and the waterproof cover 5 is located on the outer side of the control panel 4, and the interior of the instrument body 1 is provided with a sealing threading plate 6, and the interior of the sealing threading plate 6 is provided with a threading hole 7; the interior of the instrument body 1 is provided with a waterproof structure for controlling the sealing of the threading hole 7, and the waterproof structure includes a guide rod 8, and the guide rod 8 is fixedly installed inside the instrument body 1, and the guide rod 8 is located between the front cover 3 and the sealing threading plate 6, and the outer side of the guide rod 8 is slidably installed with a left moving plate 9 and a right moving plate 10, and the two groups of left moving plates 9 and the two groups of right moving plates 10 are cross-distributed, and the left moving plate 9 and the right moving plate 10 are slidably installed with a sliding plate 11, and the sliding plate 11 is fixedly installed with an arc block 12 on the side close to the threading hole 7, and the interior of the arc block 12 is bonded with a conical sealing Part 13, at the same time, the arc block 12 and the conical seal 13 are arranged corresponding to the threading hole 7, the conical seal 13 is made of flexible silicone material, and the end of the conical seal 13 close to the sealing threading plate 6 is located inside the threading hole 7, and the ends of the two groups of conical seals 13 close to each other are provided with holes for passing the wires, and at the same time, the end of the threading hole 7 close to the conical seal 13 is a trumpet-shaped structure, the outer side of the sliding plate 11 is fixedly installed with an extrusion plate 14, and the end of the extrusion plate 14 close to the front cover 3 is fixedly installed with an extrusion rod 15, and the extrusion rod 15 is in close contact with the front cover 3, and the extrusion plate 14 and the extrusion rod 15 are respectively arranged corresponding to the left moving plate 9 and the right moving plate 10, and the left moving plate 9 and the right moving plate 10 are rotatably installed with a rotating rod 16 at one end close to the instrument body 1, and the rotating rod 16 is rotatably installed with a driving rod 17 at one end close to the instrument body 1, and a return spring 18 is sleeved on the outer side of the driving rod 17, and the driving rod 17 is slidably connected to the instrument body 1.

[0024] When using the low-voltage energy-saving variable frequency speed regulator with waterproof structure, first assemble the variable frequency speed regulator. Figure 4 , it is necessary to install the sealing threading plate 6 and the front cover 3 in sequence, and before the sealing threading plate 6 is installed, the wires of the electrical equipment inside the instrument body 1 can be passed through the threading holes 7. At this time, the wires will be located between the two sets of conical seals 13. After the wires are passed through, the sealing threading plate 6 can be fixedly installed inside the instrument body 1. After that, the wires can be connected to the back interface of the control panel 4, and the front cover 3 can be installed at the front end of the instrument body 1; During the fixing process of the front cover 3, Figure 5-Figure 6, which will cause the front cover 3 to squeeze the squeezing rod 15 and the driving rod 17. After the squeezing rod 15 is squeezed, it will push the squeezing plate 14 to move. At this time, the squeezing plate 14 will drive the sliding plate 11 to slide inside the left moving plate 9 and the right moving plate 10. During the sliding process of the sliding plate 11, the conical seal 13 will be driven to move toward the threading hole 7 through the arc block 12, and the conical seal 13 will move to the inside of the threading hole 7 and squeeze the threading hole 7. After being squeezed, the driving rod 17 will slide inside the instrument body 1 and cause the return spring 18 to contract. During the movement of the driving rod 17, it will push the rotating rod 16 to rotate. During the rotation of the rotating rod 16, the two groups of left moving plates 9 and the two groups of right moving plates 10 will move closer to each other, which will cause the horizontal The two sets of sliding plates 11 and arc blocks 12 are moved closer to each other, so that the two adjacent sets of conical seals 13 can be moved closer to each other and squeeze the wires. In the process of squeezing each other and entering the wire threading hole 7, the two sets of conical seals 13 will be deformed, and the two sets of conical seals 13 will seal the wire threading hole 7, so that a stable sealing effect is achieved between the sealing wire threading plate 6 and the wire, thereby ensuring the waterproof effect inside the instrument, and the waterproof cover 5 set on the front cover 3 wraps the control panel 4, and the waterproof cover 5 and the front cover 3 are sealed by a magnetic sheet, and a stable waterproof effect can be achieved by applying waterproof glue at the interface position at the rear end of the control panel 4, thereby ensuring the overall sealing and waterproof effect of the instrument.

[0025] Example 2: This example Figure 7-10 As shown, in order to solve the problem of heat dissipation of the variable frequency speed regulator through the open port, a process of stably dissipating heat of the variable frequency speed regulator is disclosed, and the effect of stably dissipating heat of the variable frequency speed regulator in a sealed state is achieved. The specific contents are as follows: The outside of the instrument body 1 is provided with a cooling structure for rapid heat dissipation, and the cooling structure includes ventilation holes 19 and an exhaust fan 20. The ventilation holes 19 are respectively opened inside the instrument body 1 and the back cover 2, and the exhaust fan 20 is installed in the ventilation holes 19 opened inside the back cover 2, and a heat conducting plate 21 is nested inside the back cover 2, and a cooling frame 22 is fixedly installed on the outside of the heat conducting plate 21, and the cooling frame 22 is located on the outside of the back cover 2, and a heat absorbing plate 23 is fixedly installed at equal intervals inside the cooling frame 22, and a heat dissipation plate 24 is fixedly installed on the outside of the cooling frame 22, and the heat dissipation plate 24 is fixedly installed on the outside of the cooling frame 22, and the heat dissipation plate 24 is fixedly connected to the heat absorbing plate 23.

[0026] When using the low-voltage energy-saving variable frequency speed regulator with waterproof structure, the electrical equipment inside the variable frequency speed regulator will generate heat, and it is necessary to perform heat dissipation treatment on the inside. In this process, the air inside the instrument needs to be transported to the inside of the ventilation pipe through the work of the exhaust fan 20. Figure 10 The ventilation pipe is arranged in an "S" shape inside the cooling frame 22, so that the heat of the air absorbed by the ventilation pipe can be transferred to the heat absorbing plate 23, and the heat absorbing plate 23 will contact the outside air through the heat dissipation plate 24 and dissipate heat. The heat conducting plate 21 will absorb the heat inside the instrument body 1 and transfer it to the cooling frame 22 and the heat absorbing plate 23, thereby completing the process of the instrument transferring the heat of its internal electrical appliances to the outside. The heat transfer inside the instrument is completed in a sealed state, which can ensure the internal heat dissipation effect of the instrument while ensuring the waterproof effect of the variable frequency speed regulator.

[0027] Example 3: This example Figure 1-Figure 2 and Figures 8-10 As shown, in order to solve the problem of poor heat dissipation effect of the existing variable frequency speed regulator, the specific heat dissipation process of the variable frequency speed regulator is disclosed, and the rapid heat dissipation effect of the variable frequency speed regulator is achieved. The specific contents are as follows: The cooling structure also includes an upper diverter frame 25, a lower diverter frame 26 and a collecting frame 29, and the upper diverter frame 25, the lower diverter frame 26 and the collecting frame 29 are fixedly installed on the outside of the back cover 2, and the upper diverter frame 25, the lower diverter frame 26 and the collecting frame 29 are distributed from top to bottom on the outside of the back cover 2. A heat dissipation pipe 27 is fixedly installed between the upper diverter frame 25 and the lower diverter frame 26, and a heat conduction pipe 28 is fixedly installed between the lower diverter frame 26 and the collecting frame 29. A micro water pump 31 and a cooling fan 30 are fixedly installed on the outside of the back cover 2, and the cooling fan 30 is located between the upper diverter frame 25 and the lower diverter frame 26.

[0028] When using the low-voltage energy-saving variable frequency speed regulator with waterproof structure, it is necessary to complete the heat dissipation process of the variable frequency speed regulator through the heat dissipation plate 24. Figure 8 In this process, the cooling effect is improved by the flow of the coolant inside the cooling frame 22. In this process, the coolant inside the collecting frame 29 needs to be transported to the inside of the cooling frame 22 through the liquid delivery pipe by the micro water pump 31. At this time, the coolant can absorb the heat generated by the heat conducting plate 21, the heat absorbing plate 23 and the air delivery pipe, and the coolant that absorbs the heat will be discharged upward through the upper end of the cooling frame 22, so that the coolant that absorbs the heat is discharged into the interior of the upper diverter frame 25 through the micro water pump 31, and the coolant inside the upper diverter frame 25 will pass through the heat dissipation pipe 2 7 enters the interior of the lower diverter frame 26. During this process, the cooling fan 30 will blow air to the heat dissipation pipe 27 to dissipate heat, thereby cooling the coolant inside the heat dissipation pipe 27. The cooled coolant will be discharged into the interior of the collecting frame 29 through the heat conducting pipe 28 inside the lower diverter frame 26, making it convenient for the coolant inside the collecting frame 29 to enter the interior of the cooling frame 22 for cooling. This reciprocating process completes the rapid cooling process of the variable frequency speed regulator, effectively improving the cooling effect of the variable frequency speed regulator and increasing the overall practicality.

[0029] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage energy-saving variable frequency speed regulator with a waterproof structure, comprising an instrument body (1) and a rear cover (2) provided at the rear end of the instrument body (1); Its characteristics are: The front end of the instrument body (1) is provided with a front cover (3), and the outer side of the front cover (3) is provided with a control panel (4), and the outer side of the front cover (3) is rotatably mounted with a waterproof cover (5), and the waterproof cover (5) is located on the outer side of the control panel (4). The interior of the instrument body (1) is provided with a sealing threading plate (6), and the interior of the sealing threading plate (6) is provided with a threading hole (7); The interior of the instrument body (1) is provided with a waterproof structure for controlling the sealing of the threading hole (7), and the exterior of the instrument body (1) is provided with a cooling structure for rapid heat dissipation.

2. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 1, characterized in that: The waterproof structure includes a guide rod (8), and the guide rod (8) is fixedly installed inside the instrument body (1), and the guide rod (8) is located between the front cover (3) and the sealing threading plate (6), and a left moving plate (9) and a right moving plate (10) are slidably installed on the outer side of the guide rod (8), and the two groups of left moving plates (9) and the two groups of right moving plates (10) are cross-distributed.

3. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 2, characterized in that: A sliding plate (11) is slidably mounted inside the left moving plate (9) and the right moving plate (10), and an arc block (12) is fixedly mounted on one side of the sliding plate (11) close to the threading hole (7), and a conical sealing member (13) is bonded inside the arc block (12), and the arc block (12) and the conical sealing member (13) are arranged corresponding to the threading hole (7).

4. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 3, characterized in that: The conical seal (13) is made of flexible silicone material, and one end of the conical seal (13) close to the sealing threading plate (6) is located inside the threading hole (7), and the ends of the two sets of conical seals (13) close to each other are each provided with a hole groove for passing the wire, and the end of the threading hole (7) close to the conical seal (13) is a trumpet-shaped structure.

5. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 4, characterized in that: An extrusion plate (14) is fixedly mounted on the outer side of the sliding plate (11), and an extrusion rod (15) is fixedly mounted on one end of the extrusion plate (14) close to the front cover (3), and the extrusion rod (15) is in close contact with the front cover (3), and the extrusion plate (14) and the extrusion rod (15) are respectively arranged corresponding to the left moving plate (9) and the right moving plate (10).

6. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 5, characterized in that: A rotating rod (16) is rotatably mounted on one end of the left moving plate (9) and the right moving plate (10) close to the instrument body (1), and a driving rod (17) is rotatably mounted on one end of the rotating rod (16) close to the instrument body (1), and a return spring (18) is sleeved on the outer side of the driving rod (17), and the driving rod (17) is slidably connected to the instrument body (1).

7. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 1, characterized in that: The cooling structure includes a ventilation hole (19) and an exhaust fan (20), wherein the ventilation hole (19) is respectively opened inside the instrument body (1) and the rear cover (2), and the exhaust fan (20) is installed in the ventilation hole (19) opened inside the rear cover (2), and a heat conduction plate (21) is nested and installed inside the rear cover (2).

8. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 7, characterized in that: A cooling frame (22) is fixedly mounted on the outside of the heat conducting plate (21), and the cooling frame (22) is located on the outside of the rear cover (2). A heat absorbing plate (23) is fixedly mounted equidistantly inside the cooling frame (22). A heat dissipating plate (24) is fixedly mounted equidistantly on the outside of the cooling frame (22), and the heat dissipating plate (24) is fixedly connected to the heat absorbing plate (23).

9. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 8, characterized in that: The cooling structure further comprises an upper diverter frame (25), a lower diverter frame (26) and a collecting frame (29), and the upper diverter frame (25), the lower diverter frame (26) and the collecting frame (29) are fixedly mounted on the outside of the rear cover (2), and the upper diverter frame (25), the lower diverter frame (26) and the collecting frame (29) are sequentially distributed from top to bottom on the outside of the rear cover (2), a heat dissipation pipe (27) is fixedly mounted between the upper diverter frame (25) and the lower diverter frame (26), and a heat conduction pipe (28) is fixedly mounted between the lower diverter frame (26) and the collecting frame (29).

10. The low-voltage energy-saving variable frequency speed regulator with a waterproof structure according to claim 9, characterized in that: A micro water pump (31) and a cooling fan (30) are fixedly mounted on the outer side of the rear cover (2), and the cooling fan (30) is located between the upper diversion frame (25) and the lower diversion frame (26).

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