High-voltage variable frequency motor protection device for energy-saving fan

By introducing a clamping structure and a pressure guide plate into the high-voltage frequency converter motor protection device, combined with the volume change of the current and liquid, the separation of the motor and the circuit is achieved, solving the problem of inseparable motor and the casing in the prior art, ensuring that the motor is Safe separation and energy-saving effect from the line.

CN222215379UActive Publication Date: 2024-12-20HUBEI DEQIANG ELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202323639627.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2024-12-20
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

The existing motor protection device cannot separate the motor from the housing, resulting in damage to the wires and unable to effectively protect the circuits of the motor and the use device.

Method used

A high-voltage frequency conversion motor protection device including a placement frame, a motor, a fixed block, a sealed pressure guide groove, an electric current-changing liquid tank, a telescopic spring and a sliding rod are designed to separate the motor and the circuit through a clamping structure and a pressure guide plate, and Use the current to change the volume when the current is too large, and the circuit is disconnected.

Benefits of technology

The separation design between the motor and the line is realized, which avoids wire damage, and drives the energy-saving fan body to get out of the motor through a telescopic spring to ensure safe separation of the motor and the line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The high-voltage variable frequency motor protection device for the energy-saving fan comprises a placing frame and a motor fixedly connected to the placing frame, one side of the motor is fixedly connected with a motor output end, the motor output end is fixedly connected with an energy-saving fan body, the top of the motor is fixedly connected with a fixing block, a clamping hole is formed in the fixing block, and the clamping hole is fixedly connected with the fixing block. A connecting end wire is clamped in the fixing block, one side of the connecting end wire is fixedly connected with a sealed pressure guide groove, one side of the sealed pressure guide groove is fixedly connected with a pressure guide plate, one side of the pressure guide plate is fixedly connected with an electrorheological fluid box, and the bottom of the sealed pressure guide groove is fixedly connected with a second wire. According to the utility model, through the arrangement of the clamping structure, the motor and the circuit can be clamped when the circuit is installed, so that the motor and the circuit can be separated at any time, and through the arrangement of the pressure guide plate and the sealed pressure guide groove, the voltage in the motor is guided into the pressure guide plate and the sealed pressure guide groove, so that the effect of disconnecting the circuit is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a high-voltage variable-frequency motor protection device for energy-saving fans. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. The motor is represented by the letter M in the circuit. Its main function is to generate driving torque. As a power source for electrical appliances or various machines, the motor is an indispensable device in mechanical equipment.

[0003] After searching, the invention patent with Chinese patent number CN 111697535 A discloses a motor protection device. It includes a housing with a motor body installed, a driving end fixedly connected to one side of the motor body, a wiring terminal arranged on the motor body, a neutral line and a live line connected to the wiring terminal, a cavity opened in the housing, a sealing groove arranged in the cavity, an electrorheological fluid filled in the sealing groove, a telescopic groove arranged at one end of the sealing groove, the live line connected to one end of the sealing groove, a slide groove arranged at one end of the telescopic groove away from the sealing groove, a slider slidably arranged in the telescopic groove, and a slide rod slidably arranged on the slide groove. Compared with the prior art, the invention patent with Chinese patent number CN 111697535 A can add electrorheological fluid to the circuit connected to the motor, and the presence of electrorheological fluid can be used to monitor the current situation in the circuit. When the current is too large, the electrorheological fluid changes from liquid to solid, and the volume of the electrorheological fluid after the state change increases. The circuit is disconnected by using its volume change, thereby protecting the motor.

[0004] However, in actual use, the above-mentioned motor protection device only disconnects the circuit and the casing, but cannot disconnect the circuit between the motor and the device. If the device is connected, the motor and the casing cannot be separated. Once separated, the wires will be damaged. Therefore, a high-voltage variable-frequency motor protection device for energy-saving fans that can separate the motor and the casing is needed. Utility Model Content

[0005] The utility model aims to solve the defect that the motor and the casing cannot be separated in the prior art, and proposes a high-voltage variable-frequency motor protection device for an energy-saving fan.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-voltage variable-frequency motor protection device for an energy-saving fan comprises a placement frame and a motor fixedly connected to the placement frame, one side of the motor is fixedly connected to a motor output end, the motor output end is fixedly connected to an energy-saving fan body, the top of the motor is fixedly connected to a fixed block, a clamping hole is provided inside the fixed block, the internal clamping connection terminal line of the fixed block, one side of the terminal line is fixedly connected to a sealed pressure-conducting groove, one side of the sealed pressure-conducting groove is fixedly connected to a pressure-conducting plate, one side of the pressure-conducting plate is fixedly connected to an electrorheological fluid tank, the bottom of the sealed pressure-conducting groove is fixedly connected to a second wire, the top of the second wire is fixedly connected to a lower spring sheet, the inside of the electrorheological fluid tank is slidably connected to a first wire rod, the bottom of the first wire rod is fixedly connected to a connecting wire, the connecting wire The bottom is fixedly connected to the upper spring piece, the bottom of the first conductor rod is fixedly connected to the energy-saving fan body, and one side of the first conductor rod is fixedly connected to a telescopic spring, so as to achieve the effect of disconnecting the circuit, one side of the telescopic spring is fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a sliding rod, the sliding rod passes through the placement frame and extends to the outside of the placement frame, one side of the placement frame is fixedly connected to a limiting block, the top of the sliding rod is fixedly connected to a first plug rod, the two sides of the terminal line are slidably connected to the second plug rod, springs are arranged on both sides of the terminal line, the spring and the terminal line are fixedly connected, sockets are arranged on both sides of the card hole, the socket and the second plug rod are used in conjunction with each other, and the terminal line and the card hole are used in conjunction with each other, so that the motor and the line can be separated at any time.

[0008] The above technical solution further includes:

[0009] The electrorheological fluid box is provided with electrorheological fluid inside, and a slider is slidably connected inside the electrorheological fluid box. One side of the slider is fixedly connected to the first conductor rod, and the first conductor rod is slidably connected to the electrorheological fluid box.

[0010] The bottom of the motor is fixedly connected with a base, and the bottom of the base is fixedly connected with the placement frame.

[0011] The lower spring sheet and the upper spring sheet conflict with each other.

[0012] The interior of the electrorheological fluid box and the slider have the same height, and the slider has a width smaller than the interior of the electrorheological fluid box.

[0013] The placement frame is provided with a plug hole inside, and the plug hole and the first plug rod are used in cooperation with each other.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model: by setting a clamping structure, the motor and the line can be clamped when the line is installed, so that the motor and the line can be separated at any time, and by setting a pressure guide plate and a sealed pressure guide groove, the voltage inside the motor is introduced into the pressure guide plate and the sealed pressure guide groove, thereby achieving the effect of disconnecting the circuit.

[0016] 2. In the utility model: by providing a telescopic spring and a connecting block, the upper spring sheet and the lower spring sheet can drive the energy-saving fan body to move under the action of the telescopic spring when they are separated, thereby achieving the effect that the energy-saving fan body can be separated from the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first structural schematic diagram of a high-voltage variable-frequency motor protection device for an energy-saving fan proposed by the utility model;

[0018] Figure 2 This is a second structural schematic diagram of a high-voltage variable-frequency motor protection device for an energy-saving fan proposed by the utility model;

[0019] Figure 3 This is a third structural schematic diagram of a high-voltage variable-frequency motor protection device for an energy-saving fan proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the clamping structure of a high-voltage variable-frequency motor protection device for an energy-saving fan proposed by the utility model;

[0021] Figure 5 The utility model provides a schematic diagram of the internal structure of an electrorheological fluid tank of a high-voltage variable-frequency motor protection device for an energy-saving fan.

[0022] In the figure: 1. placement frame; 2. energy-saving fan body; 3. motor output terminal; 4. base; 5. motor; 6. fixing block; 7. terminal wire; 8. sealed pressure guide groove; 9. pressure guide plate; 10. electrorheological fluid tank; 11. first conductor rod; 12. telescopic spring; 13. jack; 14. first plug rod; 15. limit block; 16. slide rod; 17. connecting block; 18. second conductor; 19. lower spring piece; 20. connecting rod; 21. upper spring piece; 22. second plug rod; 23. slide block; 24. electrorheological fluid. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example

[0025] like Figure 1-5As shown, the utility model proposes a high-voltage variable-frequency motor protection device for an energy-saving fan, comprising a placement frame 1 and a motor 5 fixedly connected to the placement frame 1, one side of the motor 5 is fixedly connected with a motor output terminal 3, and the motor output terminal 3 is fixedly connected to an energy-saving fan body 2, characterized in that: a fixed block 6 is fixedly connected to the top of the motor 5, a clamping hole is arranged inside the fixed block 6, a terminal line 7 is clamped inside the fixed block 6, a sealed pressure-conducting groove 8 is fixedly connected to one side of the terminal line 7, a pressure-conducting plate 9 is fixedly connected to one side of the sealed pressure-conducting groove 8, an electrorheological fluid tank 10 is fixedly connected to one side of the pressure-conducting plate 9, a second wire 18 is fixedly connected to the bottom of the sealed pressure-conducting groove 8, a lower spring sheet 19 is fixedly connected to the top of the second wire 18, a first wire rod 11 is slidably connected to the inside of the electrorheological fluid tank 10, a connecting wire 20 is fixedly connected to the bottom of the first wire rod 11, an upper spring sheet 21 is fixedly connected to the bottom of the connecting wire 20, and the bottom of the first wire rod 11 is fixedly connected to the energy-saving fan body 2.

[0026] A telescopic spring 12 is fixedly connected to one side of the first conductor rod 11, a connecting block 17 is fixedly connected to one side of the telescopic spring 12, a sliding rod 16 is fixedly connected to one side of the connecting block 17, the sliding rod 16 penetrates the placement frame 1 and extends to the outside of the placement frame 1, a limiting block 15 is fixedly connected to one side of the placement frame 1, a first plug 14 is fixedly connected to the top of the sliding rod 16, a second plug 22 is slidably connected to both sides of the terminal line 7, a spring is provided on both sides of the terminal line 7, the spring and the terminal line 7 are fixedly connected, a socket is provided on both sides of the card hole, the socket and the second plug 22 are used in conjunction with each other, the terminal line 7 and the card hole are used in conjunction with each other, and the interior of the electrorheological fluid tank 10 An electrorheological fluid 24 is provided, a slider 23 is slidably connected to the inside of the electrorheological fluid tank 10, one side of the slider 23 is fixedly connected to the first conductor rod 11, the first conductor rod 11 and the electrorheological fluid tank 10 are slidably connected, the bottom of the motor 5 is fixedly connected to the base 4, the bottom of the base 4 is fixedly connected to the placement frame 1, the lower spring piece 19 and the upper spring piece 21 are in conflict with each other, the height of the inside of the electrorheological fluid tank 10 and the slider 23 are equal, the width of the slider 23 is smaller than the width of the inside of the electrorheological fluid tank 10, a socket 13 is provided inside the placement frame 1, the socket 13 and the first plug rod 14 are used in conjunction with each other, so as to achieve the effect that the motor 5 and the line can be separated at any time.

[0027] In this embodiment: when the motor 5 has a component damaged so that the motor output terminal 3 does not rotate, but there are still components in the motor 5 that are powered, the current of the components in the motor 5 will become larger and larger and exceed the normal current range, and the current flowing through the electrorheological fluid 24 will also become larger. According to the inherent properties of the electrorheological fluid 24, when the current flowing through exceeds the threshold, the electrorheological fluid 24 will change from liquid to solid, and its volume will increase relatively when changing its form. The electrorheological fluid 24 will push the slider 23 to move to the right, and when the slider 23 moves, it will drive the A conductor rod 11 moves to the right. After the first conductor rod 11 moves to the right, it will drive the upper spring piece 21 to move synchronously. The position of the upper spring piece 21 and the lower spring piece 19 will be staggered and no longer in contact, and the circuit is disconnected. At the same time, the first conductor rod 11 drives the energy-saving fan body 2 to slide to the right, so that the energy-saving fan body 2 is separated from the motor 5. When the motor 5 is removed, the motor 5 drives the terminal line 7 to slide upward, and the terminal line 7 drives the second plug rods 22 on both sides to contract and disengage from the socket. The terminal line 7 is separated from the buckle, and the motor 5 can be removed, thereby achieving the effect that the motor 5 and the circuit can be separated at any time.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-voltage variable-frequency motor protection device for an energy-saving fan, comprising a placement frame (1) and a motor (5) fixedly connected to the placement frame (1), one side of the motor (5) being fixedly connected to a motor output end (3), the motor output end (3) being fixedly connected to an energy-saving fan body (2), Features: The top of the motor (5) is fixedly connected to a fixed block (6), a clamping hole is provided inside the fixed block (6), a terminal wire (7) is clamped inside the fixed block (6), a sealed pressure-conducting groove (8) is fixedly connected to one side of the terminal wire (7), a pressure-conducting plate (9) is fixedly connected to one side of the sealed pressure-conducting groove (8), an electrorheological fluid tank (10) is fixedly connected to one side of the pressure-conducting plate (9), a second wire (18) is fixedly connected to the bottom of the sealed pressure-conducting groove (8), a lower spring sheet (19) is fixedly connected to the top of the second wire (18), a first wire rod (11) is slidably connected to the inside of the electrorheological fluid tank (10), a connecting wire (20) is fixedly connected to the bottom of the first wire rod (11), an upper spring sheet (21) is fixedly connected to the bottom of the connecting wire (20), and a first wire rod (11) is fixedly connected to the bottom of the connecting wire (20). The bottom is fixedly connected to the energy-saving fan body (2); one side of the first conductor rod (11) is fixedly connected to a telescopic spring (12); one side of the telescopic spring (12) is fixedly connected to a connecting block (17); one side of the connecting block (17) is fixedly connected to a sliding rod (16); the sliding rod (16) passes through the placement frame (1) and extends to the outside of the placement frame (1); one side of the placement frame (1) is fixedly connected to a limiting block (15); the top of the sliding rod (16) is fixedly connected to a first plug rod (14); the two sides of the terminal line (7) are slidably connected to a second plug rod (22); springs are arranged on both sides of the terminal line (7); the springs and the terminal line (7) are fixedly connected; sockets are arranged on both sides of the clamping hole; the sockets and the second plug rod (22) are used in conjunction with each other; the terminal line (7) and the clamping hole are used in conjunction with each other.

2. A high-voltage variable-frequency motor protection device for energy-saving fans according to claim 1, Features: An electrorheological fluid (24) is arranged inside the electrorheological fluid box (10), a slider (23) is slidably connected inside the electrorheological fluid box (10), one side of the slider (23) is fixedly connected to a first conductor rod (11), and the first conductor rod (11) and the electrorheological fluid box (10) are slidably connected.

3. A high-voltage variable-frequency motor protection device for energy-saving fans according to claim 1, Features: The bottom of the motor (5) is fixedly connected to a base (4), and the bottom of the base (4) is fixedly connected to the placement frame (1).

4. A high-voltage variable-frequency motor protection device for energy-saving fans according to claim 1, Features: The lower spring sheet (19) and the upper spring sheet (21) are in conflict with each other.

5. A high-voltage variable-frequency motor protection device for energy-saving fans according to claim 1, Features: The interior of the electrorheological fluid box (10) and the slider (23) have the same height, and the width of the slider (23) is smaller than the width of the interior of the electrorheological fluid box (10).

6. A high-voltage variable-frequency motor protection device for energy-saving fans according to claim 1, Features: The placement frame (1) is provided with an insertion hole (13) inside, and the insertion hole (13) and the first insertion rod (14) are used in cooperation with each other.