Fan frequency conversion speed regulation control device

Abstract

The utility model provides a fan frequency conversion speed regulation control device which comprises a control device body, a butt joint pile and a butt joint assembly, a device shell is arranged outside the control device body, a control unit is installed inside the device shell, four sets of fixing piles are fixed to the four corners of the rear side inside the device shell, and the control unit comprises an integrated board and an outer wrapping frame. The integrated board is embedded in the inner side of the outer wrapping frame, and butt joint holes I are formed in the four corners of the rear side of the integrated board. Compared with the prior art, the integrated board has the advantages that by arranging the butt joint assemblies and the fixing piles, four sets of magnetic attraction heads and four sets of fixing heads are fixed in an attraction mode; according to the control device, the control unit can be rapidly installed and fixed in the device shell, meanwhile, the control unit can be rapidly disassembled, the maintenance efficiency and convenience of the control device body are greatly improved, a first screw is in threaded connection with a second butt joint hole, a magnetic suction head can be conveniently and rapidly replaced, use is easy, and operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of control device technology, and specifically relates to a variable frequency speed control device for a fan. Background Technology

[0002] A variable frequency drive (VFD) is a device that adjusts the motor speed by changing the frequency and voltage of the power supply input to the motor. This control device can adjust the speed of the exhaust fan and the make-up fan according to the operating status and type of the stove, matching airflow and pressure to achieve energy saving and consumption reduction. It also features IoT functions such as remote control and monitoring. This device is typically installed on the wall between the range hood and the make-up fan. The internal fan and external make-up fan are observed and operated through a perforated plate on the control device. Existing control devices integrate signal receiving, analysis, conversion, power supply, and automatic control modules, resulting in a complex internal structure and inconvenient maintenance. The conventional solution is to perform periodic maintenance on the internal components of the control device to keep them clean and ensure normal operation. However, this method requires disassembling the control device for periodic maintenance. Currently, the integrated board inside the control device is generally fixed to the outer casing with bolts, making maintenance cumbersome. Therefore, a new structure is proposed to solve these problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a variable frequency speed control device for a fan to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a wind turbine variable frequency speed control device, comprising: a control device body, a docking pile and a docking assembly, wherein the control device body is provided with a device shell, and a control unit is installed inside the device shell;

[0005] Four sets of fixing posts are fixed at the four rear corners inside the outer casing of the device. The control unit includes an integrated plate and an outer frame. The integrated plate is embedded in the inner side of the outer frame. A docking hole is provided at the four rear corners of the integrated plate.

[0006] A docking assembly is provided on the rear side of the first docking hole. The docking assembly includes a magnetic head and a docking connector. A screw is provided on the front side of the magnetic head. The rear side of the docking connector is recessed forward to form a second docking hole. A screw is provided on the front side of the docking connector.

[0007] In a preferred embodiment, a range hood is installed on the upper left side of the main body of the control device, and sensors are installed on the left and right sides of the bottom of the range hood. The sensors are connected to the main body of the control device via a wireless signal.

[0008] An air supply fan is installed on the upper right wall of the main body of the control mechanism. A signal receiving module is installed inside the air supply fan. The control unit is equipped with a power module, a control module, a display and operation module, a protection module, a communication module, and a heat dissipation module. The outer casing of the device is fixed to the wall with bolts.

[0009] In a preferred embodiment, the fixing pile includes a fixing head and a fixing rod. The rear side of the fixing rod is welded and fixed to the rear side of the inner shell of the device. The fixing head is made of iron, and the radius of the fixing head is the same as the radius of the magnetic head.

[0010] In a preferred embodiment, the magnetic head and the screw are integrated into one structure. The screw has a thread on its outer side. The radius and height of the screw match the radius and depth of the mating hole. The mating hole has an internal thread groove that matches the specifications of the thread. The screw and the mating hole are connected by a thread, which enables quick replacement of the magnetic head.

[0011] In a preferred embodiment, the connector and the second screw are integrated into one structure. The second screw has a second thread on its outer side. The radius and height of the second screw match the radius and depth of the first docking hole. Through the threaded connection between the second screw and the first docking hole, the four sets of docking components can be quickly assembled and disassembled, thus facilitating the maintenance of the docking components.

[0012] In a preferred embodiment, the inner side of the first docking hole is provided with an internal thread groove that matches the specification of the second thread, and the interval length between the four sets of first docking holes is the same as the interval length between the four sets of fixed piles.

[0013] In a preferred embodiment, the total width of the fixing pile, the docking assembly, and the control unit matches the width of the inner side of the device housing, ensuring that the control unit can be completely inside the device housing after the magnetic head and the fixing head are attracted and fixed.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: By setting docking components and fixing posts, the fixing rod on the rear side of the fixing post is welded to the rear side of the device housing, and the screw two is threadedly connected to the docking hole one, thereby installing four sets of docking components at the four corners of the back of the integrated plate. The magnetic heads on the rear side of the four sets of docking components are respectively opposite to the fixing heads on the front side of the four sets of fixing posts. The fixing heads are made of iron, so the control module can be quickly installed inside the device housing, improving the installation efficiency. When disassembly is required, the four sets of magnetic heads are disengaged from the four sets of fixing heads, and the control unit can be taken out, thus improving the disassembly efficiency. Then, the screw two is disengaged from the docking hole one, so the four sets of docking components can be taken out. Then, the screw one is disengaged from the docking hole two, so the magnetic heads can be removed, thus facilitating the replacement of the magnetic heads. The final effect is to greatly improve the convenience and efficiency of maintenance, and it is simple and convenient to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a variable frequency speed control device for a fan according to the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the outer casing of a variable frequency speed control device for a fan according to the present invention.

[0018] Figure 3 This is a schematic diagram of the back of the control unit in a variable frequency speed control device for a fan according to this utility model.

[0019] Figure 4 This is a schematic diagram of the docking component in a variable frequency speed control device for a fan according to this utility model.

[0020] In the picture, 100 represents the range hood;

[0021] 200 - Control device body, 210 - Device housing, 220 - Fixing pile;

[0022] 300 - Control unit, 310 - Integrated board, 311 - Dating hole one;

[0023] 400-Matching assembly, 410-Magnetic head, 411-Screw one, 420-Matching connector, 421-Screw two, 422-Matching hole two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one aspect of the present utility model, and not all aspects. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1 to 4 A variable frequency speed control device for a wind turbine includes: a control device body 200, a docking pile and a docking assembly 400. The control device body 200 is provided with a device housing 210 on the outside, and a control unit 300 is installed inside the device housing 210.

[0026] Four sets of fixing posts 220 are fixed at the four rear corners inside the device housing 210. The control unit 300 includes: an integrated plate 310 and an outer frame. The integrated plate 310 is embedded in the inner side of the outer frame. The integrated plate 310 has a docking hole 311 at the four rear corners.

[0027] A docking assembly 400 is provided on the rear side of the first docking hole 311. The docking assembly 400 includes a magnetic head 410 and a docking connector 420. A screw 411 is provided on the front side of the magnetic head 410. The rear side of the docking connector 420 is recessed forward to form a second docking hole 422. A screw 421 is provided on the front side of the docking connector 420.

[0028] A range hood 100 is installed on the upper left side of the main body 200 of the control device. Sensors are installed on the left and right sides of the bottom of the range hood 100. The sensors are connected to the main body of the control device via a wireless signal.

[0029] An air supply fan is installed on the upper right wall of the main body of the control mechanism. A signal receiving module is installed inside the air supply fan. The control unit 300 is equipped with a power module, a control module, a display and operation module, a protection module, a communication module, and a heat dissipation module. The outer casing 210 of the device is fixed to the wall with bolts.

[0030] The fixed pile 220 includes a fixed head and a fixed rod. The rear side of the fixed rod is welded and fixed to the rear side of the inner side of the device housing 210. The fixed head is made of iron, and the radius of the fixed head is the same as the radius of the magnetic head 410.

[0031] The magnetic head 410 and the screw 411 are integrated into one structure. The screw 411 has a thread 31 on its outer side. The radius and length of the screw 411 match the radius and length of the mating hole 422. The mating hole 422 has an inner thread groove 31 that matches the specifications of the thread 31. The screw 411 is connected to the mating hole 311 by a thread, which can achieve the effect of quickly replacing the magnetic head 410.

[0032] The connector 420 and the screw 421 are an integral structure. The screw 421 has a thread 2 on its outer side. The radius and length of the screw 421 match the radius and length and depth of the mating hole 311. Through the threaded connection between the screw 421 and the mating hole 311, the four sets of mating components 400 can be quickly disassembled and assembled, which facilitates the maintenance of the mating components 400.

[0033] The inner side of the first mating hole 311 is provided with an internal thread groove 2 that matches the specification of the second thread. The interval length between the four sets of first mating holes 311 is the same as the interval length between the four sets of fixed piles 220.

[0034] The total width of the fixing pile 220, the docking component 400 and the control unit 300 matches the width of the inner side of the device housing 210, ensuring that after the magnetic head 410 is attracted and fixed to the fixing head, the control unit 300 can be completely inside the device housing 210.

[0035] Example 1: Please refer to Figures 1 to 3 In actual use, the control unit 300 is first installed inside the device housing 210. Then, the rear side of the device housing 210 is fixed to the wall with four sets of bolts, thus connecting and fixing the control device body 200 to the wall. During actual operation, oil fumes are generated inside the kitchen. The concentration and content of these fumes are related to the operating status and type of the stove. At this time, the sensors on the left and right sides of the bottom of the range hood 100 will monitor the oil fume concentration in real time, convert this information into electrical signals, and transmit them to the control device body 200. After the signal is analyzed and processed by the control unit 300 inside the control device body 200, the control module feeds back the optimal fan frequency information signal obtained after analysis to the range hood 100. The fan inside the range hood 100 starts frequency conversion speed adjustment, and at the same time, the oil... The range hood 100 transmits the signal from the variable frequency speed control of the fan to the control unit 300, and displays it through the display and operation module inside the control unit 300, i.e., the touch screen, so that the operator can observe the data in real time. Then, the main body of the control device 200 transmits the signal fed back from the range hood 100 to the make-up fan, so that the make-up fan can perform make-up air work in the kitchen, thereby achieving the purpose of energy saving and consumption reduction (the working principle and internal structure of the range hood 100, the make-up fan and the main body of the control device 200 are all existing technologies and will not be described in detail here). It should be noted that the make-up fan and the range hood 100 can be regarded as starting and stopping at the same time. The air volume of the range hood fan should be slightly greater than the air volume of the make-up fan to ensure that the indoor air is always in a slightly positive pressure state and to prevent unfiltered outside air from entering.

[0036] When maintenance and cleaning of the control device body 200 are required, a door is hinged to the front of the control device body 200. The inside of the device housing 210 can be exposed by opening the door. Then, the control unit 300 can be pulled outward to disengage the magnetic heads 410 on the back of the four sets of docking components 400 on the back of the integrated plate 310 from the fixing heads on the front of the fixing posts 220 at the four corners of the rear side of the device housing 210. The fixing heads are made of iron, so the control unit 300 can be removed from the inside of the device housing 210. After removing the control unit 300, the four sets of docking components 400 can be rotated to disengage the four sets of screws 421 from the four sets of docking holes 311 on the rear side of the integrated plate 310. This allows the four sets of docking components 400 to be removed, and the control unit 300 can be fully exposed to the operator. The operator can maintain and clean the operating unit from different angles, thus greatly improving the efficiency and convenience of maintenance. It is simple and convenient to use.

[0037] Example 2: Please refer to Figure 3 and Figure 4 After prolonged use, the magnetic force of the magnetic head 410 will gradually weaken, reducing the secure fixation between the control unit 300 and the device housing 210. Therefore, the magnetic head 410 needs to be replaced promptly. Simply pinch the magnetic head 410 and rotate it clockwise to disengage the screw 411 from the mating hole 422, thus removing the magnetic head 410 and screw 411. Since the screw 411 and the magnetic head 410 are an integral structure, the magnetic head 410 can be replaced along with the screw 411. Repeat the above steps to replace the screw 411. After screwing 411 into the first docking hole 311, screw 421 of the four sets of docking components 400 after replacing the magnetic heads 410 into the four sets of first docking holes 311 respectively. Then pick up the control unit 300, put the integrated plate 310 of the control unit 300 into the device housing 210 with the rear facing, so that the four sets of magnetic heads 410 can be attracted and fixed to the four sets of fixing heads respectively. Then close the box door to complete the replacement of the control unit 300. The final effect is to ensure the connection stability of the control unit 300 and significantly improve the maintenance efficiency of the control unit 300.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable frequency speed control device for a fan, comprising: The control device body (200), docking pile, and docking assembly (400) are characterized in that: the control device body (200) is provided with a device shell (210) on the outside, and a control unit (300) is installed inside the device shell (210); The device housing (210) has four sets of fixing posts (220) fixed at the four rear corners inside. The control unit (300) includes an integrated plate (310) and an outer frame. The integrated plate (310) is embedded in the inner side of the outer frame. The integrated plate (310) has a docking hole (311) at the four rear corners. The docking hole 1 (311) is provided with a docking assembly (400) on the rear side. The docking assembly (400) includes a magnetic suction head (410) and a docking head (420). The magnetic suction head (410) is provided with a screw 1 (411) on the front side. The docking head (420) is recessed forward on the rear side to form a docking hole 2 (422). The docking head (420) is provided with a screw 2 (421) on the front side.

2. The variable frequency speed control device for a fan as described in claim 1, characterized in that: A range hood (100) is installed on the upper left side of the main body (200) of the control device. Sensors are installed on the left and right sides of the bottom of the range hood (100). The sensors are connected to the main body of the control device via a wireless signal. A supplementary air fan is installed on the upper right wall of the main body of the control mechanism. A signal receiving module is installed inside the supplementary air fan. The control unit (300) is equipped with a power module, a control module, a display and operation module, a protection module, a communication module, and a heat dissipation module. The outer shell (210) of the device is fixed to the wall by bolts.

3. The variable frequency speed control device for a fan as described in claim 1, characterized in that: The fixed pile (220) includes a fixed head and a fixed rod. The rear side of the fixed rod is welded and fixed to the rear side inside the outer shell (210) of the device. The fixed head is made of iron, and the radius of the fixed head is the same as the radius of the magnetic head (410).

4. The variable frequency speed control device for a fan as described in claim 3, characterized in that: The magnetic suction head (410) and the screw (411) are an integral structure. The screw (411) has a thread on the outside. The radius and height of the screw (411) match the radius and depth of the docking hole (422). The docking hole (422) has an inner thread groove that matches the specifications of the thread.

5. The variable frequency speed control device for a fan as described in claim 1, characterized in that: The connector (420) and the screw (421) are an integral structure. The screw (421) has a thread on the outside. The radius and height of the screw (421) match the radius and depth of the mating hole (311).

6. The variable frequency speed control device for a fan as described in claim 5, characterized in that: The inner side of the first docking hole (311) is provided with an inner thread groove that matches the specification of the second thread. The interval length between the four sets of the first docking holes (311) is the same as the interval length between the four sets of fixed piles (220).

7. The variable frequency speed control device for a fan as described in claim 1, characterized in that: The total width of the fixed pile (220), docking assembly (400) and control unit (300) matches the width of the inner side of the device housing (210).

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