Dustproof ventilation device in frequency converter channel

Abstract

The utility model discloses a dustproof ventilation device in a frequency converter channel, relates to the technical field of frequency converter ventilation and heat dissipation, and aims to solve the problems that a conventional device is usually provided with a filter screen plate for preventing dust from entering the interior of a frequency converter, so that air flow is hindered, dust and impurities are gradually accumulated on a dustproof mechanism, and the frequency converter is inconvenient to clean. In order to solve the problems that in the prior art, the maintenance complexity is increased due to the fact that cleaning needs to be conducted regularly, and the heat dissipation degree is limited due to the fact that an existing device only conducts heat dissipation through ventilation and circulating air, heat dissipation or dust prevention is conducted through opening and closing of two opening and closing plates, when the opening and closing plates are completely opened, a ventilation pipeline is slightly shielded, air circulation is smoother, and the service life of the ventilation pipeline is prolonged. The ventilation pipeline is blocked when no heat dissipation requirement exists, the effective dustproof effect can be achieved, the heat conduction assembly is additionally arranged while air flows outwards from the interior of the frequency converter, ventilation and heat conduction supplement each other, and the heat dissipation efficiency can be improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation and heat dissipation of frequency converters, in particular to a dust-proof ventilation device in a frequency converter channel. Background Art

[0002] The inverter generates heat during operation, which needs to be dissipated through ventilation. Reasonable ventilation can timely discharge the heat generated inside the inverter and maintain its operating temperature within the normal range. If the ventilation is not smooth, heat accumulation may cause the temperature of the inverter's internal components to be too high, which will affect the performance and life of the components.

[0003] In Chinese Patent 202221057866.2, the utility model discloses a frequency converter cabinet ventilation device, including a frequency converter cabinet body, the surface of the frequency converter cabinet body is provided with a loading and unloading mechanism, the loading and unloading mechanism includes mounting holes opened on the left and right sides of the frequency converter cabinet body surface, the inner side of the inner wall of the mounting hole is fixedly connected with a mounting ring, the inner side of the mounting ring is movably connected with a ventilation pipe, the surface of the ventilation pipe is fixedly connected with a matching ring located outside the mounting ring, and the outer side of the mounting ring is provided with an annular clamping groove. The utility model solves the problem that the existing fan and the frequency converter cabinet are generally connected by various connectors and the installation is troublesome through the mutual cooperation of the frequency converter cabinet body and the loading and unloading mechanism. The device has the advantage of being easy to load and unload, thereby facilitating people's use and improving practicality, and enhancing the toughness of the annular soft rubber ring by an annular soft rubber ring made of polypropylene.

[0004] The existing dust-proof ventilation device in the inverter channel is usually equipped with filter plates at the air inlet and outlet channels to prevent dust from entering the interior of the inverter, which will hinder the air flow. As time goes by, dust and impurities will gradually accumulate on the dust-proof mechanism, requiring regular cleaning, which increases the complexity of maintenance. In addition, the existing device only dissipates heat through ventilation and uses circulating air, and the heat dissipation is limited.

[0005] In view of the above problems, a dust-proof ventilation device in a frequency converter channel is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a dust-proof ventilation device in the inverter channel, which solves the problems in the background technology that the existing devices have a large obstruction to the air flow rate, the subsequent cleaning and maintenance are cumbersome, and the heat dissipation effect is limited only by ventilation.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof ventilation device in a frequency converter channel, comprising a frequency converter ventilation duct, one end of the frequency converter ventilation duct is fixedly connected to a first mounting block, and an opening and closing control component is installed inside the first mounting block, the opening and closing control component comprises a servo motor, and the connection between the servo motor and the first mounting block is a fixed connection, the output end of the servo motor is fixedly connected to a driving gear, and one side of the driving gear is meshed with a first transmission rack, and the end of the first transmission rack is meshed with a first driven gear, the other side of the driving gear is meshed with a second transmission gear, and the end of the second transmission gear is meshed with a second driven gear, the interior of the frequency converter ventilation duct is fixedly connected to An opening and closing dustproof component is connected, the opening and closing dustproof component includes a second mounting block, and the connection between the second mounting block and the inverter ventilation duct is a fixed connection, two groups of opening and closing rotating shafts are symmetrically arranged at both ends of the second mounting block, and the connection between the top end of one group of opening and closing rotating shafts and the first driven gear is a fixed connection, and the connection between the top end of the other group of opening and closing rotating shafts and the second driven gear is a fixed connection, the other end of the inverter ventilation duct is fixedly connected to a fan mounting frame, a through hole is opened in the middle position of the fan mounting frame, and a heat-conducting component is penetrated through the inside of the through hole, the heat-conducting component includes a heat-conducting block, and a heat-conducting column is welded to one side of the heat-conducting block, and a heat-conducting fin is welded to the outer wall of the heat-conducting column.

[0008] Preferably, four groups of cooling fans are installed at equal intervals inside the fan installation frame, a side of the inverter ventilation duct is fixedly connected to an inverter cabinet body, and an air inlet slot is opened on the other side of the inverter cabinet body.

[0009] Preferably, the outer wall of the opening and closing baffle is fixedly connected with a heat dissipation fin, and the cross-section of the heat dissipation fin is S-shaped.

[0010] Preferably, the heat dissipation fins are arranged at equal intervals with respect to the outer wall of the opening and closing baffle, and the opening and closing baffle forms a rotating structure with the second mounting block through an opening and closing rotating shaft.

[0011] Preferably, the cross-sectional size of the heat-conducting fins gradually increases from an end close to the heat-conducting block to an end close to the opening and closing baffle, and the heat-conducting fins are distributed in a ring array outside the heat-conducting column.

[0012] Preferably, the end of the heat-conducting column is tightly fitted to the inner wall of the opening and closing baffle, the shape of the heat-conducting block is conical, and the larger side of the heat-conducting block is fixedly connected to the heating part inside the inverter cabinet body.

[0013] Preferably, the heat-conducting block is used to guide the heat of the heating part of the inverter cabinet body to the heat-conducting column, and the heat-conducting fin is used to dissipate the heat on the heat-conducting column to the inside of the inverter ventilation duct.

[0014] Preferably, the driving gear forms a transmission structure through the first transmission rack and the first driven gear, and the driving gear forms a transmission structure through the second transmission gear and the second driven gear. When the driving gear rotates, the movement directions of the first transmission rack and the second transmission gear are opposite, and the rotation directions of the first driven gear and the second driven gear are opposite.

[0015] Preferably, two groups of supporting sliders are fixedly connected to the tops of the first transmission rack and the second transmission gear, and the inside of the supporting slider is rotatably connected to an anti-slip block, the side of the anti-slip block is fixedly connected to a rolling shaft, and the connection between the rolling shaft and the supporting slider is a rotational connection.

[0016] Preferably, the outer sliding connection of the supporting sliding block is provided with a limiting sliding groove, and the outer part of the limiting sliding groove is integrally connected with a sliding groove frame, and the connection between the sliding groove frame and the first mounting block is a fixed connection.

[0017] Preferably, the outer cavity of the inverter cabinet body forms a connecting structure with the inner cavity of the inverter cabinet body through an air inlet slot, and the inverter cabinet body is connected to the inverter ventilation duct. A temperature sensor is installed inside the inverter cabinet body, and the temperature sensor is used to control the start-up of the cooling fan and the servo motor.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model provides a dust-proof ventilation device in the inverter channel, which utilizes the opening and closing of two opening and closing plates to dissipate heat or prevent dust, without the obstruction of the filter screen, so that the air circulation inside the inverter ventilation duct is smoother during ventilation and heat dissipation, and dust and other impurities will not be intercepted in the dust-proof ventilation mechanism during the ventilation process, and there is no need for regular cleaning and replacement, thereby reducing the maintenance workload. When the internal temperature does not meet the heat dissipation requirements, the two opening and closing baffles are in a closed state, and the inverter ventilation duct is blocked, which can effectively prevent external dust and other impurities from entering the inverter through the inverter ventilation duct, and at the same time, the inner wall of the opening and closing baffle is tightly fitted with the heat conduction component part, and the opening and closing baffle and the heat dissipation fins can be made of aluminum-copper alloy, which has excellent thermal conductivity. When the heat dissipation threshold is not reached, part of the internal heat can also be dissipated to the outside.

[0020] 2. The utility model provides a dust-proof ventilation device in the inverter channel. While utilizing air to circulate from the inside of the inverter to carry out heat, a heat-conducting component is added to facilitate utilizing a heat-conducting sheet to conduct the heat inside the inverter to the outside, and at the same time utilize the airflow flowing outward to dissipate the conducted heat again. Ventilation and heat conduction complement each other, which is convenient for improving heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the internal structure of the utility model as a whole;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model installed on the frequency converter;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the utility model in which the opening and closing dustproof component is partially opened;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the opening and closing control component part of the utility model;

[0025] Figure 5 It is a three-dimensional structural diagram of the cross-sectional state of the supporting slider and the slideway frame part supporting the slider of the utility model;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the heat-conducting component part of the utility model.

[0027] In the figure: 1. inverter ventilation duct; 2. first mounting block; 3. opening and closing control component; 4. opening and closing dustproof component; 5. fan mounting frame; 6. through hole; 7. heat conduction component; 8. cooling fan; 9. inverter cabinet body; 10. air inlet slot; 301. servo motor; 302. driving gear; 303. first transmission rack; 304. first driven gear; 305. second transmission gear; 306. second driven gear; 307. supporting slider; 308. anti-slip rotating block; 309. rolling shaft; 310. limiting slide; 311. slide frame; 401. opening and closing baffle; 402. cooling fin; 403. opening and closing shaft; 404. second mounting block; 701. heat conduction block; 702. heat conduction column; 703. heat conduction fin. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Example 1

[0031] Combination Figure 1-Figure 6, a dust-proof ventilation device in a frequency converter channel, comprising a frequency converter ventilation duct 1, one end of the frequency converter ventilation duct 1 is fixedly connected with a first mounting block 2, and an opening and closing control component 3 is installed inside the first mounting block 2, the opening and closing control component 3 comprises a servo motor 301, and the connection between the servo motor 301 and the first mounting block 2 is a fixed connection, the output end of the servo motor 301 is fixedly connected with a driving gear 302, and one side of the driving gear 302 is meshed with a first transmission rack 303, and the end of the first transmission rack 303 is meshed with a first driven gear 304, the other side of the driving gear 302 is meshed with a second transmission gear 305, and the end of the second transmission gear 305 is meshed with a second driven gear 306, the interior of the frequency converter ventilation duct 1 is fixedly connected with an opening and closing dust-proof component 4, the opening and closing dust-proof component 4 comprises a second mounting block 404, and the second mounting block 404 is connected to the frequency converter ventilation duct 1 The connection between them is a fixed connection, two groups of opening and closing shafts 403 are symmetrically arranged at both ends of the second mounting block 404, and the connection between the top end of one group of opening and closing shafts 403 and the first driven gear 304 is a fixed connection, and the connection between the top end of the other group of opening and closing shafts 403 and the second driven gear 306 is a fixed connection, the other end of the inverter ventilation duct 1 is fixedly connected with a fan mounting frame 5, a through hole 6 is opened in the middle position of the fan mounting frame 5, and a heat conducting component 7 is penetrated through the inside of the through hole 6, the heat conducting component 7 includes a heat conducting block 701, and a heat conducting column 702 is welded to one side of the heat conducting block 701, and a heat conducting fin 703 is welded to the outer wall of the heat conducting column 702, four groups of cooling fans 8 are installed at equal intervals inside the fan mounting frame 5, the side of the inverter ventilation duct 1 is fixedly connected with an inverter cabinet body 9, and an air inlet slot 10 is opened on the other side of the inverter cabinet body 9.

[0032] The outer wall of the opening and closing baffle 401 is fixedly connected with the heat dissipation fin 402, and the cross-sectional shape of the heat dissipation fin 402 is set in an S shape. The heat dissipation fin 402 is arranged at equal intervals about the outer wall of the opening and closing baffle 401, and the opening and closing baffle 401 forms a rotating structure with the second mounting block 404 through the opening and closing rotating shaft 403.

[0033] The opening and closing shaft 403 is driven by the opening and closing control component 3 to open and close the opening and closing baffle 401. When ventilation and heat dissipation are required, the opening and closing shaft 403 rotates and opens with the opening and closing baffle 401, so that the inverter ventilation duct 1 is in an open state. Under the action of the heat dissipation fan 8, hot air is brought out of the inverter to dissipate heat inside it, and there is no obstruction from the filter, so that the air circulation inside the inverter ventilation duct 1 is smoother. When the internal temperature of the inverter cabinet body 9 does not reach the threshold value for ventilation and heat dissipation, the two opening and closing baffles 401 are in a closed state. In this state, the inverter ventilation duct 1 is blocked, which can effectively prevent foreign dust and other impurities from entering the interior of the inverter through the inverter ventilation duct 1, and at the same time, the inner wall of the opening and closing baffle 401 is tightly fitted with the heat conduction component 7. The opening and closing baffle 401 and the heat dissipation fins 402 can be made of aluminum-copper alloy, which has excellent thermal conductivity and can continue to conduct the heat conducted from the heat conduction component 7 to the outside and dissipate it to the outside through the heat dissipation fins 402. The cross-street surface is designed in an S-shape, which increases the contact area between it and the outside air and improves the heat dissipation effect.

[0034] The cross-sectional size of the heat-conducting fin 703 gradually increases from the end close to the heat-conducting block 701 to the end close to the opening and closing baffle 401, and the heat-conducting fin 703 is distributed in a circular array with respect to the outside of the heat-conducting column 702, and the end of the heat-conducting column 702 is tightly fitted with the inner wall of the opening and closing baffle 401. The shape of the heat-conducting block 701 is conical, and the larger side of the heat-conducting block 701 is fixedly connected to the heating part inside the inverter cabinet body 9. The heat-conducting block 701 is used to guide the heat of the heating part of the inverter cabinet body 9 to the heat-conducting column 702, and the heat-conducting fin 703 is used to dissipate the heat on the heat-conducting column 702 to the inside of the inverter ventilation duct 1.

[0035] The larger side of the conical heat-conducting block 701 is in contact with the heat-generating part inside the inverter cabinet body 9, so that the heat inside the inverter can be transferred to the heat-conducting block 701, and then the heat inside the inverter is first introduced into the inverter ventilation duct 1 for accumulation through the heat-conducting column 702 and the heat-conducting fin 703. During the ventilation and heat dissipation process, the circulating air quickly flows through the surface of the heat-conducting fin 703, so that the heat introduced into the inverter ventilation duct 1 can be quickly dissipated outward. The heat-conducting fin 703 with a small front end and a large rear end increases the heat dissipation area, and its streamlined shape can minimize the impact on air circulation.

[0036] While utilizing air to carry away heat from the inside of the inverter, a heat conducting component 7 is added to facilitate utilizing a heat conducting sheet to conduct the heat inside the inverter to the outside, and utilizing the airflow to the outside to dissipate the conducted heat again. Ventilation and heat conduction complement each other, thereby facilitating improving heat dissipation efficiency.

[0037] The driving gear 302 forms a transmission structure with the first driven gear 304 through the first transmission rack 303, and the driving gear 302 forms a transmission structure with the second driven gear 306 through the second transmission gear 305. When the driving gear 302 rotates, the moving directions of the first transmission rack 303 and the second transmission gear 305 are opposite, and the rotation directions of the first driven gear 304 and the second driven gear 306 are opposite. The tops of the first transmission rack 303 and the second transmission gear 305 are fixedly connected with two groups of supporting sliders 307, and the internal rotation of the supporting slider 307 is connected with an anti-slip block 308, and the side of the anti-slip block 308 is fixedly connected with a rolling shaft 309, and the connection between the rolling shaft 309 and the supporting slider 307 is a rotational connection, and the external sliding connection of the supporting slider 307 is a limited sliding groove 310, and the external part of the limited sliding groove 310 is integrally connected with a sliding groove frame 311, and the connection between the sliding groove frame 311 and the first mounting block 2 is a fixed connection.

[0038] When the electrical signal transmitted by the temperature sensor reaches a preset threshold, the servo motor 301 starts to start, and its output end rotates with the driving gear 302, and the driving gear 302 moves with the first transmission rack 303 and the second transmission gear 305 meshing with it on both sides, and rotates with the first driven gear 304 and the second driven gear 306, so that the opening and closing baffle 401 can be opened and closed through the opening and closing shaft 403. The first transmission rack 303 and the second transmission gear 305 are hoisted inside the first mounting block 2 through the supporting slider 307 and the slide frame 311. When the first transmission rack 303 and the second transmission gear 305 are moving, the supporting slider 307 at the top thereof will roll on the slide frame 311 with the anti-slip rotating block 308 and the rolling shaft 309, and the rolling shaft 309 can convert the sliding friction into rolling friction, thereby reducing the obstruction to the first transmission rack 303 and the second transmission gear 305 during the movement.

[0039] The outer cavity of the inverter cabinet body 9 forms a connecting structure with the inner cavity of the inverter cabinet body 9 through the air inlet slot 10, and the inverter cabinet body 9 is connected to the inverter ventilation duct 1. A temperature sensor is installed inside the inverter cabinet body 9, and the temperature sensor is used to control the start-up of the cooling fan 8 and the servo motor 301.

[0040] For the cooling fan 8, the temperature sensor can be connected to a simple comparator circuit, one input end of the comparator is connected to the output signal of the temperature sensor, and the other input end is connected to a reference voltage representing a set temperature threshold. When the output signal of the temperature sensor is greater than the reference voltage, the comparator outputs a high level and drives the cooling fan 8 to operate through a switching tube such as a transistor or MOSFET; for the servo motor 301, the temperature sensor is usually connected to the analog input port of the servo controller. The servo controller has a microprocessor inside, which will digitize the temperature signal and combine it with other control signals such as position signals, speed signals, etc. to control the operation of the servo motor 301 through a power amplifier.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust-proof ventilation device in a frequency converter channel, characterized in that: The invention comprises a frequency converter ventilation duct (1), one end of which is fixedly connected to a first mounting block (2), and an opening and closing control component (3) is installed inside the first mounting block (2), the opening and closing control component (3) comprises a servo motor (301), and the connection between the servo motor (301) and the first mounting block (2) is a fixed connection, the output end of the servo motor (301) is fixedly connected to a driving gear (302), one side of the driving gear (302) is meshed with a first transmission rack (303), and the end of the first transmission rack (303) is meshed with a first driven gear (304), the other side of the driving gear (302) is meshed with a second transmission gear (305), and the end of the second transmission gear (305) is meshed with a second driven gear (306), the interior of the frequency converter ventilation duct (1) is fixedly connected to an opening and closing dustproof component (4), and the opening and closing dustproof component (4) comprises a first transmission rack (303), and a second transmission rack (305) is meshed with a second driven gear (306). two mounting blocks (404), and the connection between the second mounting block (404) and the inverter ventilation duct (1) is a fixed connection, two groups of opening and closing rotating shafts (403) are symmetrically arranged at both ends of the second mounting block (404), and the connection between the top end of one group of opening and closing rotating shafts (403) and the first driven gear (304) is a fixed connection, and the connection between the top end of the other group of opening and closing rotating shafts (403) and the second driven gear (306) is a fixed connection, and the other end of the inverter ventilation duct (1) is fixedly connected to a fan mounting frame (5), a through hole (6) is provided in the middle position of the fan mounting frame (5), and a heat conduction component (7) is provided through the inside of the through hole (6), and the heat conduction component (7) includes a heat conduction block (701), and a heat conduction column (702) is welded to one side of the heat conduction block (701), and a heat conduction fin (703) is welded to the outer wall of the heat conduction column (702); Four groups of cooling fans (8) are installed at equal intervals inside the fan installation frame (5); a frequency converter cabinet body (9) is fixedly connected to the side of the frequency converter ventilation duct (1), and an air inlet slot (10) is provided on the other side of the frequency converter cabinet body (9).

2. The dust-proof ventilation device in the inverter channel according to claim 1, characterized in that: The outer wall of the opening and closing baffle (401) is fixedly connected with a heat dissipation fin (402), and the cross-section of the heat dissipation fin (402) is arranged in an S-shape.

3. The dust-proof ventilation device in the inverter channel according to claim 2, characterized in that: The heat dissipation fins (402) are arranged at equal intervals with respect to the outer wall of the opening and closing baffle (401), and the opening and closing baffle (401) forms a rotating structure with the second mounting block (404) via the opening and closing rotating shaft (403).

4. The dust-proof ventilation device in the inverter channel according to claim 1, characterized in that: The cross-sectional size of the heat-conducting fins (703) gradually increases from an end close to the heat-conducting block (701) to an end close to the opening and closing baffle (401), and the heat-conducting fins (703) are distributed in a ring array outside the heat-conducting column (702).

5. The dust-proof ventilation device in the inverter channel according to claim 4, characterized in that: The end of the heat-conducting column (702) is tightly fitted to the inner wall of the opening and closing baffle (401), the heat-conducting block (701) is conical in shape, and the larger side of the heat-conducting block (701) is fixedly connected to the heating part inside the inverter cabinet body (9).

6. The dust-proof ventilation device in the inverter channel according to claim 4, characterized in that: The heat conducting block (701) is used to conduct the heat of the heat generating part of the inverter cabinet body (9) to the heat conducting column (702), and the heat conducting fin (703) is used to dissipate the heat on the heat conducting column (702) to the inside of the inverter ventilation duct (1).

7. The dust-proof ventilation device in the inverter channel according to claim 1, characterized in that: The driving gear (302) forms a transmission structure through the first transmission rack (303) and the first driven gear (304), and the driving gear (302) forms a transmission structure through the second transmission gear (305) and the second driven gear (306); when the driving gear (302) rotates, the first transmission rack (303) and the second transmission gear (305) move in opposite directions, and the first driven gear (304) and the second driven gear (306) rotate in opposite directions.

8. The dust-proof ventilation device in the inverter channel according to claim 7, characterized in that: Two groups of supporting sliders (307) are fixedly connected to the tops of the first transmission rack (303) and the second transmission gear (305), and an anti-slip block (308) is rotatably connected inside the supporting slider (307), and a rolling shaft (309) is fixedly connected to the side of the anti-slip block (308), and the connection between the rolling shaft (309) and the supporting slider (307) is a rotational connection.

9. The dust-proof ventilation device in the inverter channel according to claim 7, characterized in that: The supporting slide block (307) is externally slidably connected to a limiting slide groove (310), and the limiting slide groove (310) is externally integrally connected to a slide groove frame (311), and the connection between the slide groove frame (311) and the first mounting block (2) is a fixed connection.

10. The dust-proof ventilation device in the inverter channel according to claim 1, characterized in that: The outer cavity of the inverter cabinet body (9) forms a communication structure with the inner cavity of the inverter cabinet body (9) through the air inlet slot (10), and the inverter cabinet body (9) is connected to the inverter ventilation duct (1). A temperature sensor is installed inside the inverter cabinet body (9), and the temperature sensor is used to control the start-up of the cooling fan (8) and the servo motor (301).

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