Automatic filter screen ash removal device for frequency converter of wind driven generator

Abstract

The utility model discloses an automatic filter screen deashing device for a wind driven generator frequency converter, which comprises a frequency converter box door, the top surface of the frequency converter box door is provided with an adjusting mechanism, the top of the adjusting mechanism is connected with a sliding block in a sliding manner, the top of the sliding block is fixedly connected with an automatic deashing mechanism, the adjusting mechanism comprises four limiting blocks, and the limiting blocks are arranged on the top surface of the frequency converter box door. The four limiting blocks are fixedly arranged on the top face of the frequency converter box door, the four inserting rods are connected to the tops of the four limiting blocks in an inserted mode respectively, and the electric sliding rail is fixedly connected to the tops of the four inserting rods; the automatic dust cleaning device is simple in structure and reasonable in design, the automatic dust cleaning mechanism comprises a dust collector, a bearing frame, a hydraulic rod and a cleaning brush, dust on the surface of the filter screen body is conveniently cleaned, filter screen blockage caused by long maintenance cycle time is avoided, the adjusting mechanism comprises four limiting blocks, four inserting rods and an electric sliding rail, dust at different positions is conveniently cleaned, and the service life of the filter screen body is prolonged. Labor force is reduced, and convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power technology field, concretely is a kind of automatic filter screen dust cleaning device for wind driven generator frequency converter. BACKGROUND

[0002] Automatic filter screen dust cleaning device for wind driven generator frequency converter is a kind of equipment specially designed for the frequency converter system of wind driven generator, to ensure that the filter screen of equipment can be cleaned regularly, to improve the operating efficiency of frequency converter and prolong its service life. Since wind driven generator is usually in outdoor environment, the electrical cabinet where frequency converter is located can be affected by dust, sand and other pollutants, these pollutants are easy to accumulate in the filter screen part of equipment, cause air circulation to be not smooth, and then affect the heat dissipation and performance of frequency converter. Automatic filter screen dust cleaning device is used to solve this problem.

[0003] Disadvantages of prior art:

[0004] At present, most of wind driven generator frequency converters are installed in wind driven generators in highland areas with more wind and sand, and the frequency converter, as a core component, adopts air cooling mode, under the suction force of high-power exhaust fan, negative pressure is caused at ventilation inlet, and a large amount of fine sand and dust outside gathers on the filter screen at ventilation inlet, if not cleaned in time, it will cause wind volume to decrease, and dust to enter the inside of frequency converter and cause electronic component failure. And because wind farm has many wind machines and long distance, cleaning and maintenance cycle time is relatively long, causing filter screen to be blocked. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of automatic filter screen dust cleaning device for wind driven generator frequency converter to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of automatic filter screen dust cleaning device for wind driven generator frequency converter, including frequency converter box door, the top surface of the frequency converter box door is provided with adjusting mechanism, the top of the adjusting mechanism is slidably connected with sliding block, the top of the sliding block is fixedly connected with automatic dust cleaning mechanism, and the adjusting mechanism includes:

[0007] Four limiting blocks, four limiting blocks are fixedly arranged on the top surface of frequency converter box door;

[0008] Four insertion rods, four insertion rods are respectively inserted into the top of four limiting blocks;

[0009] Electric slide rail, electric slide rail is fixedly connected at the top of four insertion rods.

[0010] Preferably, the automatic dust cleaning mechanism includes:

[0011] Dust collector, dust collector is fixedly connected at the top of sliding block;

[0012] A receiving frame is welded on one side of the dust collector;

[0013] A hydraulic rod is fixedly connected to the receiving frame;

[0014] A cleaning brush is fixedly connected to the output end of the dust collector for cleaning stubborn dust on the surface of the filter screen body.

[0015] Preferably, the outer surface of the frequency converter box door is provided with a cabinet door, and the surface of the cabinet door is fixedly connected with the filter screen body.

[0016] Preferably, a handle is welded to the surface of the filter screen body on one side edge, and a non-slip sleeve is sleeved on the outer surface of the handle.

[0017] Preferably, universal wheels are arranged around the bottom surface of the frequency converter box door, and brake pads are arranged inside the four universal wheels.

[0018] Preferably, mounting blocks are fixedly connected to the two sides of the four universal wheels, and bolts are threadedly connected to the surfaces of the mounting blocks.

[0019] Preferably, the frequency converter box door is made of stainless steel.

[0020] Compared with the prior art, the dust collector has the advantages that:

[0021] 1. The automatic filter screen dust cleaning device for the wind power generator frequency converter comprises a dust collector, a receiving frame, a hydraulic rod and a cleaning brush, the hydraulic rod drives the output end of the dust collector and the cleaning brush to move up and down, so that the cleaning brush cleans stubborn dust on the filter screen body, and then the dust is adsorbed by the dust collector, the dust on the surface of the filter screen body is conveniently cleaned, the maintenance cycle time is shortened, and the filter screen is prevented from being blocked.

[0022] 2. The automatic filter screen dust cleaning device for the wind power generator frequency converter comprises four limiting blocks, four insertion rods and an electric sliding rail, the four insertion rods are inserted into the four limiting blocks, so that the electric sliding rail is fixed, and then the electric sliding rail drives the automatic dust cleaning mechanism to rotate to a position to be cleaned, different positions of dust are conveniently cleaned, labor is reduced, and convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a front view of the automatic dust cleaning mechanism of the utility model;

[0025] Figure 3 It is a front view of the adjusting mechanism of the utility model;

[0026] Figure 4 It is the front perspective view of the frequency converter box door of the utility model.

[0027] In the figure: 1, frequency converter box door; 2, adjusting mechanism; 201, limit block; 202, plug rod; 203, electric slide rail; 3, automatic dust cleaning mechanism; 301, dust collector; 302, receiving frame; 303, hydraulic rod; 304, cleaning brush; 4, cabinet door; 5, filter screen main body; 6, handle; 7, universal wheel; 8, mounting block; 9, bolt. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0030] In the description of the patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the patent can be understood according to the specific circumstances.

[0031] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "several" is two or more than two, unless otherwise explicitly specified and limited.

[0032] Example 1

[0033] Please refer to Figures 1-4The utility model provides a kind of automatic filter screen dust cleaning device for wind driven generator frequency converter technical scheme shown in the utility model: including frequency converter box door 1, the top surface of frequency converter box door 1 is provided with adjusting mechanism 2, the top of adjusting mechanism 2 is slidably connected with sliding block, the top of sliding block is fixedly connected with automatic dust cleaning mechanism 3, adjusting mechanism 2 includes, four limit blocks 201, four limit blocks 201 are fixedly set on the top surface of frequency converter box door 1, four insertion rods 202, four insertion rods 202 are respectively inserted in the top of four limit blocks 201, electric slide rail 203, electric slide rail 203 is fixedly connected on the top of four insertion rods 202, the output end of hydraulic rod 303 driving cleaning brush 304 and dust collector 301 moves up and down, hydraulic rod 303 can provide strong driving force, can accurately control the movement of cleaning brush 304, so that cleaning brush 304 can effectively clean on different surfaces, by moving up and down, using the friction of cleaning brush 304 to remove stubborn dust and sundries on filter screen surface, when cleaning brush 304 cleans dust on the surface of filter screen main body 5, the work of dust collector 301 starts, dust collector 301 is adsorbed into dust collecting bin or filter dust bag by negative pressure with loosened dust and sundries, dust collector 301 can quickly remove these particulate matters, ensure the cleaning and ventilation performance of filter screen main body 5, conveniently clean the dust on the surface of filter screen main body 5, avoid long maintenance cycle time, cause filter screen blockage.

[0034] Automatic dust cleaning mechanism 3 includes, dust collector 301, dust collector 301 is fixedly connected on the top of sliding block, receiving frame 302, receiving frame 302 is welded on one side of dust collector 301, hydraulic rod 303, hydraulic rod 303 is fixedly connected in receiving frame 302, cleaning brush 304, cleaning brush 304 is fixedly connected on the output end of dust collector 301 for cleaning stubborn dust on the surface of filter screen main body 5, insertion rod 202 is inserted with limit block 201, to ensure the position and stability of electric slide rail 203, the effect of limit block 201 is to limit the movement range of electric slide rail 203, to ensure that electric slide rail 203 works within a certain stroke, when electric slide rail 203 moves to the specified position, automatic dust cleaning mechanism 3 starts to work, conveniently clean dust in different positions, reduce labor, improve convenience.

[0035] The outer surface of frequency converter box door 1 is provided with cabinet door 4, the surface of cabinet door 4 is fixedly connected with filter screen main body 5, to facilitate the protection of electrical equipment in the cabinet of frequency converter box door 1.

[0036] The surface of filter screen main body 5 is welded with handle 6 on one side edge, the outer surface of handle 6 is sleeved with antiskid sleeve, to avoid hand slipping or touching, electrostatic phenomenon occurs.

[0037] The bottom surface of frequency converter box door 1 is provided with universal wheel 7 around, the inside of four universal wheels 7 is mounted with brake pad, to facilitate the device to be carried and moved to the specified position.

[0038] Two sides of the four universal wheels 7 are fixedly connected with mounting blocks 8, the surfaces of the mounting blocks 8 are threadedly connected with bolts 9, and the bolts 9 are fastened on the bottom load end of the frequency converter box door 1 through the mounting blocks 8, so that the universal wheels 7 are conveniently disassembled and maintained later.

[0039] The frequency converter box door 1 is made of stainless steel, so as to avoid water vapor corrosion of the frequency converter box door 1 and affect the service life of the electrical equipment in the frequency converter box door 1.

[0040] The four insertion rods 202 are inserted into the four limiting blocks 201 in the device, so that the electric sliding rail 203 is fixed, and the electric sliding rail 203 is driven to rotate the automatic dust cleaning mechanism 3 to the position to be cleaned, so that dust at different positions is conveniently cleaned, labor is reduced, convenience is improved, power is connected, the hydraulic rod 303 is driven to move the output end of the dust collector 301 and the cleaning brush 304 up and down, so that the cleaning brush 304 cleans stubborn dust on the filter screen body 5, and then the dust collector 301 is used to adsorb the dust, so that the surface dust of the filter screen body 5 is conveniently cleaned, the maintenance cycle time is avoided to be long, and the filter screen is prevented from being blocked.

[0041] The above shows and describes the basic principles, main features and advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic filter cleaning device for a wind turbine inverter, comprising an inverter enclosure door (1), characterized in that: An adjustment mechanism (2) is provided on the top surface of the inverter box door (1). A slider is slidably connected to the top of the adjustment mechanism (2), and an automatic dust removal mechanism (3) is fixedly connected to the top of the slider. The adjustment mechanism (2) includes: Four limiting blocks (201) are fixedly installed on the top surface of the inverter box door (1); Four insert rods (202) are respectively inserted into the top of four limiting blocks (201); An electric slide rail (203) is fixedly connected to the top of four insert rods (202).

2. The automatic filter cleaning device for a wind turbine frequency converter according to claim 1, characterized in that: The automatic dust removal mechanism (3) includes: A vacuum cleaner (301) is fixedly connected to the top of the slider; A receiving frame (302) is welded to one side of the vacuum cleaner (301); A hydraulic rod (303) is fixedly connected to a support frame (302); A cleaning brush (304) is fixedly connected to the output end of the vacuum cleaner (301) for cleaning stubborn dust on the surface of the filter body (5).

3. The automatic filter cleaning device for a wind turbine frequency converter according to claim 1, characterized in that: The outer surface of the inverter box door (1) is provided with a cabinet door (4), and a filter body (5) is fixedly connected to the surface of the cabinet door (4).

4. The automatic filter cleaning device for a wind turbine frequency converter according to claim 3, characterized in that: A handle (6) is welded to one edge of the surface of the filter body (5), and an anti-slip sleeve is fitted onto the outer surface of the handle (6).

5. The automatic filter cleaning device for a wind turbine frequency converter according to claim 1, characterized in that: The bottom surface of the inverter box door (1) is provided with casters (7) on all four sides, and brake pads are installed inside the four casters (7).

6. The automatic filter cleaning device for a wind turbine frequency converter according to claim 5, characterized in that: Each of the four casters (7) has a mounting block (8) fixedly connected to both sides, and the surfaces of the mounting blocks (8) are threaded with bolts (9).

7. The automatic filter cleaning device for a wind turbine frequency converter according to claim 1, characterized in that: The inverter enclosure door (1) is made of stainless steel.

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