Dustproof heat dissipation type frequency converter

Abstract

The utility model relates to the technical field of frequency converter dust prevention, in particular to a dustproof heat dissipation type frequency converter, which comprises a frequency converter body, and a shell of the frequency converter body is provided with a scavenging port; the X first barrier strips are uniformly arranged at the scavenging port, and each first barrier strip extends in the first direction; the Y second barrier strips are uniformly arranged at the ventilation port, each second barrier strip extends in the second direction, each first barrier strip is provided with Y guide holes, and each second barrier strip is slidably arranged at each guide hole of each first barrier strip; the first driving mechanism is connected with the second barrier strips and used for driving the second barrier strips to slide in the second direction; the scraping mechanism is connected with the first barrier strip and is used for scraping dust adsorbed on the first barrier strip; and the fan is arranged in the shell of the frequency converter body and is arranged corresponding to the scavenging port. The utility model relates to a dustproof heat dissipation type frequency converter, and aims to solve the problem that heat dissipation is affected due to blockage of a dustproof net in the rightward technology.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention of frequency converters, and more specifically, to a dust-proof and heat-dissipating frequency converter. Background Art

[0002] A frequency converter is a power control device that applies frequency conversion technology and microelectronics technology to control an AC motor by changing the working power frequency of the motor. The frequency converter mainly consists of a rectifier (AC to DC), a filter, an inverter (DC to AC), a braking unit, a driving unit, a detection unit, a microprocessing unit, etc. The frequency converter adjusts the voltage and frequency of the output power by the on-off of the internal IGBT, provides the required power voltage according to the actual needs of the motor, and thus achieves the purpose of energy saving and speed regulation. In addition, the frequency converter also has many protection functions, such as overcurrent, overvoltage, overload protection, etc. With the continuous improvement of the degree of automation, the frequency converter has also been widely used.

[0003] Since there are many electrical components in the frequency converter and the distribution of the electrical components is relatively compact, a large amount of heat will be generated inside the frequency converter during operation, so it is necessary to dissipate the heat inside the frequency converter. The current heat dissipation method is generally air cooling. When air cooling is used for heat dissipation, dust in the air easily enters the frequency converter along with the cold air, affecting the operation of the electrical components. Although a dust-proof net is currently used to block dust, as the service life increases, dust will gradually adsorb on the dust-proof net, resulting in the problem of dust-proof net blockage and affecting the heat dissipation of the frequency converter. Summary of the Utility Model

[0004] The main purpose of the present utility model is to propose a dust-proof and heat-dissipating frequency converter, aiming to solve the problem of dust-proof net blockage and affecting heat dissipation in the prior art.

[0005] To solve the above technical problems, a dust-proof and heat-dissipating frequency converter is proposed, including: a frequency converter body, and a ventilation opening is provided on the outer shell of the frequency converter body;

[0006] X first blocking strips are evenly arranged at the ventilation opening, and each of the first blocking strips extends along a first direction;

[0007] Y second blocking strips are evenly arranged at the ventilation opening, and each of the second blocking strips extends along a second direction. Each of the first blocking strips is provided with Y guiding holes, and each of the second blocking strips is slidably arranged at each of the guiding holes of each of the first blocking strips. X and Y are both positive integers, and the first direction and the second direction intersect;

[0008] A first driving mechanism is connected to each of the second blocking strips and is used to drive each of the second blocking strips to slide along the second direction;

[0009] Scraping mechanism, connected to the first baffle, for scraping the dust adsorbed on the first baffle;

[0010] Fan, arranged inside the housing of the frequency converter body, corresponding to the ventilation opening.

[0011] In any of the above technical solutions, further, the scraping mechanisms are symmetrically arranged in two.

[0012] In any of the above technical solutions, further, the scraping mechanism includes:

[0013] Scraper, slidably arranged on the first baffle;

[0014] Second driving mechanism, arranged inside the housing of the frequency converter body, connected to the scraper, for driving the scraper to slide along the first direction.

[0015] In any of the above technical solutions, further, the scraper is provided with Z through holes, the shape of the through holes is adapted to the cross-sectional shape of the first baffle, the distance between adjacent through holes is equal to the distance between adjacent first baffles, and 2Z ≤ X, where Z is a positive integer.

[0016] In any of the above technical solutions, further, the first driving mechanism includes:

[0017] Connecting piece, fixedly connected to each of the second baffles;

[0018] Driving motor, arranged on the connecting piece;

[0019] Gear, arranged on the driving motor;

[0020] Rack, arranged inside the housing of the frequency converter body, meshing with the gear.

[0021] In any of the above technical solutions, further, the guiding hole is a T-shaped groove, and the guiding hole penetrates inward through the inner side wall of the housing of the frequency converter body.

[0022] Beneficial effects:

[0023] The dust-proof and heat-dissipating frequency converter of the present utility model forms the effect of a dust-proof grille through multiple first baffles and second baffles, blocks the dust during the internal and external heat exchange of the frequency converter, and as the usage time increases, the dust will be adsorbed on the first baffle and the second baffle. Then, the first driving mechanism drives the second baffle to slide relative to the first baffle, and then the scraping mechanism uniformly scrapes the dust on multiple first baffles, and cooperates with the action of the fan to blow the scraped dust away from the ventilation opening, removing the dust and ensuring the heat dissipation effect. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is the rear view three-dimensional structure schematic diagram of a dust-proof and heat-dissipating frequency converter of the present invention;

[0026] Figure 2 is the front view partial structure schematic diagram of a dust-proof and heat-dissipating frequency converter of the present invention;

[0027] Figure 3 is Figure 2 the partial enlarged structure schematic diagram at A in

[0028] The reference numerals are explained as follows:

[0029] 1. Frequency converter body;

[0030] 2. First baffle;

[0031] 3. Second baffle;

[0032] 4. First driving mechanism; 401. Connecting piece; 402. Driving motor; 403. Gear; 404. Rack;

[0033] 5. Scraping mechanism; 501. Scraper; 502. Second driving mechanism;

[0034] 6. Fan. Detailed implementation manners

[0035] Next, exemplary embodiments according to the present application will be described in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0036] It should be noted that, as shown in the present application and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0037] If there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0038] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0040] The present utility model provides a dust-proof and heat-dissipating frequency converter. The effect of a dust-proof net is formed by multiple separable first baffles and second baffles. When in use, the dust adsorbed on the first baffles and second baffles is removed by a scraping mechanism and then blown away by a blower, so as to achieve the purpose of regularly removing dust and always ensuring the heat-dissipating effect.

[0041] The following will detail a dust-proof and heat-dissipating frequency converter of the present application through the following embodiments.

[0042] In this embodiment, as Figures 1 to 3 shown, the dust-proof and heat-dissipating frequency converter includes: a frequency converter body 1, and the housing of the frequency converter body 1 is provided with a ventilation opening;

[0043] X first baffles 2, which are evenly arranged at the ventilation opening, and each of the first baffles 2 extends along the first direction;

[0044] Y second baffles 3 are evenly arranged at the ventilation port, and each second baffle 3 extends along the second direction, each first baffle 2 is provided with Y guide holes, and each second baffle 3 is slidably arranged at each guide hole of each first baffle 2, X and Y are both positive integers, and the first direction and the second direction are intersected;

[0045] A first driving mechanism 4, connected to each second baffle bar 3, and used to drive each second baffle bar 3 to slide along the first direction;

[0046] The scraping mechanism 5 is connected to the first baffle bar 2 and is used to scrape the dust adsorbed on the first baffle bar 2;

[0047] The fan 6 is arranged in the housing of the inverter body 1 and corresponds to the ventilation port.

[0048] In the present technical solution, a ventilation port is provided on the rear side of the housing of the inverter body 1, and the first baffle 2 and the second baffle 3 are both provided in nine numbers. The first direction is the up-down direction, and the second direction is the left-right direction. The nine first baffles 2 are evenly provided in the left-right direction, and each first baffle 2 extends in the up-down direction. Each first baffle 2 is evenly provided with nine guide holes in the up-down direction, and the guide holes penetrate the first baffle 2 from left to right. Nine second baffles 3 are evenly provided in the up-down direction in each guide hole of each first baffle 2 to form a dustproof net. A groove is provided on the inner side wall of the housing of the inverter body 1 to avoid the space required for the second baffle 3 to move left and right. The first driving mechanism 4 is fixedly connected to each second baffle 3, and can drive each second baffle 3 to move left or right synchronously. The scraping mechanism 5 is provided corresponding to one or more first baffles 2, and the scraper 501 of the scraping mechanism 5 is sleeved on the first baffle 2. When the first driving mechanism 4 drives the second baffle 3 to stagger with the first baffle 2, the scraping mechanism 5 drives the scraper 501 to scrape the dust on the first baffle 2. The fan 6 is a fan blade structure driven by a motor, and is fixed in the housing at a position corresponding to the front side of the ventilation port.

[0049] In this embodiment, two scraping mechanisms 5 are symmetrically arranged.

[0050] In this technical solution, the ventilation port can be arranged in the middle of the housing, so as to directly dissipate heat from the components in the middle of the inverter body 1. Moreover, the opening area of ​​the ventilation port can be adjusted as needed to control the increase or decrease of the convection area during heat dissipation.

[0051] In this embodiment, the scraping mechanism 5 includes:

[0052] The scraper 501 is slidably disposed on the first stop bar 2;

[0053] The second driving mechanism 502 is disposed in the housing of the inverter body 1 and connected to the scraper 501 to drive the scraper 501 to slide along the second direction.

[0054] In this technical solution, the scraper 501 is sleeved on the first stop bar 2, and the top surface of the scraper 501 is set as an inclined surface that slopes backward and downward, which is convenient for scraping the dust on the first stop bar 2 and guiding the dust to the outside of the housing. The structure of the second driving mechanism 502 is similar to that of the first driving mechanism 4. The rack of the second driving mechanism 502 is arranged on the upper side of the rack 404 of the first driving mechanism 4, and the rack of the second driving mechanism 502 is placed outside the moving range of the motor of the first driving mechanism 4.

[0055] In this embodiment, the scraper 501 is provided with Z through holes, the shape of the through holes is adapted to the cross-sectional shape of the first stop bar 2, the distance between adjacent through holes is equal to the distance between adjacent first stop bars 2, and 2Z≤X, where Z is a positive integer.

[0056] In this technical solution, the tube plate is provided with four through holes. The cross-section of the first stop bar 2 and the cross-section of the through holes are both rectangular. The scraper 501 of the left scraping mechanism 5 is sleeved on the four first stop bars 2 on the left, and the scraper 501 of the right scraping mechanism 5 is sleeved on the four first stop bars 2 on the right. The scraper 501 is not provided on the middle first stop bar 2.

[0057] In this embodiment, the first driving mechanism 4 includes:

[0058] A connecting member 401, fixedly connected to each second stop bar 3;

[0059] A driving motor 402, arranged on the connecting member 401;

[0060] A gear 403, arranged on the driving motor 402;

[0061] A rack 404, arranged inside the housing of the frequency converter body 1 and meshing with the gear 403.

[0062] In this technical solution, the connecting member 401 is a fixing plate, integrally connected to each second stop bar 3. The connecting member 401 extends upward to the upper side of the ventilation opening. The driving motor 402 is fixed at the top end of the connecting member 401. The gear 403 is fixed on the output shaft at the rear side of the driving motor 402. The rack 404 is horizontally fixed on the inner side wall of the housing in the left-right direction. When the driving motor 402 is started, it drives the driving motor 402, the gear 403, the connecting member 401 and each second stop bar 3 to move left and right synchronously.

[0063] In this embodiment, the guiding hole is a T-shaped groove, and the guiding hole penetrates inward through the inner side wall of the housing of the frequency converter body 1.

[0064] In this technical solution, such a setting facilitates the connection and fixation of the connecting member 401 and each second stop bar 3, and also facilitates reducing the thickness occupied by the first stop bar 2 and the second stop bar 3 in the front-rear direction.

[0065] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of technologies in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A dust-proof heat-dissipating inverter, characterized in that: include: A frequency converter body (1), wherein a housing of the frequency converter body (1) is provided with a ventilation port; X first baffles (2) are evenly arranged at the ventilation opening, and each of the first baffles (2) extends along a first direction; Y second baffles (3) are evenly arranged at the ventilation port, and each of the second baffles (3) extends along the second direction, each of the first baffles (2) is provided with Y guide holes, and each of the second baffles (3) is slidably arranged at each of the guide holes of each of the first baffles (2), X and Y are both positive integers, and the first direction and the second direction are arranged to intersect; A first driving mechanism (4) connected to each of the second baffles (3) and used to drive each of the second baffles (3) to slide along the second direction; a scraping mechanism (5), connected to the first baffle (2), and used for scraping dust adsorbed on the first baffle (2); The fan (6) is arranged in the housing of the inverter body (1) and is arranged corresponding to the ventilation port.

2. The dust-proof heat dissipation inverter according to claim 1, characterized in that: The scraping mechanisms (5) are symmetrically arranged in two.

3. The dust-proof heat dissipation inverter according to claim 1 or 2, characterized in that: The scraping mechanism (5) comprises: A scraper (501) is slidably disposed on the first baffle (2); The second driving mechanism (502) is arranged in the housing of the inverter body (1), connected to the scraper (501), and used for driving the scraper (501) to slide along the first direction.

4. The dust-proof heat dissipation inverter according to claim 3, characterized in that: The scraper (501) is provided with Z through holes, the shape of the through holes is adapted to the cross-sectional shape of the first baffle (2), the spacing between adjacent through holes is equal to the spacing between adjacent first baffles (2), and 2Z≤X, where Z is a positive integer.

5. The dust-proof heat dissipation inverter according to claim 1, characterized in that: The first driving mechanism (4) comprises: A connecting member (401) fixedly connected to each of the second baffle bars (3); A driving motor (402) is arranged on the connecting member (401); A gear (403), arranged on the driving motor (402); The rack (404) is arranged in the housing of the inverter body (1) and meshes with the gear (403).

6. The dust-proof heat-dissipating inverter according to claim 1 or 5, characterized in that: The guide hole is a T-shaped slot, and the guide hole penetrates inwardly through the inner side wall of the outer shell of the inverter body (1).

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