Household frequency converter mounting box

Abstract

The utility model discloses a household frequency converter mounting box, which relates to the technical field of frequency converters and comprises a protective shell, a device main body, a heat dissipation mechanism, an air inlet, a folding plate, a first filter screen, a pull block, a first heat dissipation opening, a second filter screen and an extension block, a baffle is arranged above the extension block, and a dust screen is arranged in the center of the extension block. And a second heat dissipation opening is formed in the left side of the protective shell, a third filter screen is connected to the inner side of the second heat dissipation opening, and an arc-shaped block is arranged below the third filter screen. The air inlet is formed in the left side of the protective shell, dust is prevented from directly entering the air inlet, meanwhile, the folding plate and the first filter screen are arranged on the outer side of the air inlet, the first filter screen is pulled open along with the folding plate after the folding plate is pulled open, and the first filter screen is of an inclined structure, so that dust is blocked on the outer side when air enters the air inlet; and when air inlet is stopped, dust naturally falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converters, in particular to a household frequency converter installation box. Background Art

[0002] The inverter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the working power frequency of the motor. The inverter is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, microprocessor unit, etc. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT opening and closing, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the development of the current market, inverters are gradually appearing in household appliances, such as air conditioners.

[0003] The existing patent (application number: CN201420108497.4) discloses a frequency converter housing, a housing body, a rectangular cover with an open bottom, a plurality of heat dissipation holes on the side wall of the housing, a dustproof cloth is provided on the top of the side wall, and the size of the dustproof cloth is consistent with the side wall. When the frequency converter is not working, the heat dissipation holes can be blocked to prevent dust from entering the housing. In the process of implementing this solution, it is found that the following problems exist in the prior art and have not been well solved:

[0004] During use, the shell takes in air through the air inlet on its top. Dust itself is easy to fall from above and enter the inside of the shell through the inlet. Secondly, dust is easy to accumulate on both sides of the top, making cleaning difficult. Secondly, the heat dissipation port needs to be closed manually. Once it is forgotten to be closed, dust prevention cannot be performed, the dust prevention effect is poor, and the operation is cumbersome. Utility Model Content

[0005] In order to improve the above-mentioned problems that dust is easily accumulated on the top of the shell, dust is easily entered into the shell through the air inlet, and dust prevention of the heat dissipation port requires manual operation by staff, the utility model provides a household inverter installation box.

[0006] The utility model provides a household inverter installation box, which adopts the following technical solution:

[0007] A household inverter installation box comprises a protective shell, a device body is arranged inside the protective shell, a heat dissipation mechanism is arranged above the inner part of the protective shell, an air inlet is arranged on the left side of the heat dissipation mechanism, a folding plate is connected to the outer side of the air inlet, a first filter is connected below the folding plate, and a pull block is connected to the left side of the folding plate;

[0008] A first heat dissipation port is provided above the protective shell, a second filter is connected above the first heat dissipation port, an extension block is provided above the second filter, a baffle is provided above the extension block, a dust screen is provided at the center of the extension block, a second heat dissipation port is provided on the left side of the protective shell, a third filter is connected to the inner side of the second heat dissipation port, and an arc block is provided below the third filter.

[0009] Through the above technical scheme, the folding plate cooperates with the first filter to prevent dust from the air inlet from entering the protective shell through the air inlet. Secondly, by arranging a dustproof net and an extension block on the top, the dust on the top is blown to both sides to reduce dust accumulation. In addition, by arranging a third filter with an inclined structure on the side, dust is prevented from falling from the second heat dissipation port, so that the dust prevention work does not require manual operation by the staff.

[0010] Optionally, in the above-mentioned household inverter installation box, an opening and closing cover is rotatably connected to the right side of the protective shell, a shell base is fixedly connected to the bottom of the protective shell, and the center point of the protective shell is on the same horizontal line as the center point of the device body.

[0011] Through the above technical solution, it is convenient to open the protective shell through the opening and closing cover, so as to place it into the device body.

[0012] Optionally, in the above-mentioned household inverter installation box, the folding plate is connected to the protective shell by a rotational connection, the folding plate is installed in an integrated manner with the pull block, and the length of the folding plate is consistent with the length of the air inlet.

[0013] Through the above technical solution, it is convenient to limit the folding plate by cooperating with the protective shell, so as to facilitate the subsequent protection work of the air inlet.

[0014] Optionally, in the above-mentioned household inverter installation box, the folding plate and the first filter are installed in an integrated manner, the first filter has a three-sided structure, and the first filter is installed in an integrated manner with the air inlet.

[0015] Through the above technical solution, it is convenient to use the first filter to fix and protect the air inlet, so that dust will not enter the protective shell through the air inlet.

[0016] Optionally, in the above-mentioned household inverter installation box, the first heat dissipation port is evenly and equidistantly distributed on both sides above the protective shell, the first heat dissipation port and the second filter are installed in an integrated manner, and the connection method between the protective shell and the extension block is hot-melt connection.

[0017] Through the above technical solution, it is convenient to cooperate with the second filter through the first heat dissipation port, so that the second filter protects the first heat dissipation port to prevent dust from entering.

[0018] Optionally, in the above-mentioned household inverter installation box, the extension block and the baffle are installed in an integrated manner, the baffle is a low-outer-high-inner structure, and the extension block and the dustproof net are engaged with each other.

[0019] Through the above technical solution, it is convenient to use the baffle and the extension block to drop the dust to both sides, and then blow the dust through the second heat dissipation port to prevent dust accumulation. At the same time, the dust can be cleaned by quickly disassembling the dustproof net in the center area.

[0020] Optionally, in the above-mentioned household inverter installation box, the second heat dissipation port is symmetrically distributed on both sides of the protective shell, the second heat dissipation port is integrated with the third filter, and the second heat dissipation port is integrated with the arc block.

[0021] Through the above technical solution, the inclined third filter screen cooperates with the arc block, so that the dust at the second heat dissipation port falls directly and does not accumulate at the second heat dissipation port, thereby ensuring convenient and quick use.

[0022] In summary, the present invention has at least one of the following beneficial effects:

[0023] An air inlet is arranged on the left side of the protective shell to prevent dust from directly entering the air inlet. A folding plate and a first filter are arranged on the outside of the air inlet. After the folding plate is opened, the first filter is opened along with the folding plate. The first filter itself is an inclined structure, so that dust is blocked on the outside when air enters the air inlet, and the dust falls naturally when the air stops entering.

[0024] By arranging an extension block and a baffle on the top, the dust is naturally tilted and falls toward both sides. During the heat dissipation process of the first heat dissipation port, the air circulation drives the dust to move naturally toward both sides to avoid dust accumulation on the top. At the same time, a third filter with an inclined structure is also arranged on the outer side of the second heat dissipation port. During the heat dissipation process, the dust is naturally cleaned toward both sides, with good dust prevention effect, and no manual operation by the staff is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the overall top view of the structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the air inlet of the utility model from a top view;

[0028] Figure 4 It is a schematic diagram of the top view structure of the second heat dissipation port of the utility model.

[0029] In the figure: 1. Protective shell; 2. Device body; 3. Heat dissipation mechanism; 4. Folding plate; 5. Pull block; 6. First filter; 7. Air inlet; 8. First heat dissipation outlet; 9. Second filter; 10. Extension block; 11. Baffle; 12. Dust net; 13. Second heat dissipation outlet; 14. Third filter; 15. Arc block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 The utility model is described in further detail.

[0031] Please refer to the attached figure in the instruction manual Figure 1-4 , the utility model provides an embodiment: a household inverter installation box, including a protective shell 1, a device body 2 is arranged inside the protective shell 1, a heat dissipation mechanism 3 is arranged above the inner part of the protective shell 1, and auxiliary heat dissipation is performed through the heat dissipation mechanism 3 to avoid excessive heat during the operation of the device body 2, an air inlet 7 is arranged on the left side of the heat dissipation mechanism 3, a folding plate 4 is connected to the outer side of the air inlet 7, a first filter 6 is connected below the folding plate 4, the first filter 6 is used to filter air to prevent debris from entering the interior of the protective shell 1 through the air inlet 7, and a pull block 5 is connected to the left side of the folding plate 4;

[0032] A first heat dissipation port 8 is provided above the protective shell 1, a second filter screen 9 is connected above the first heat dissipation port 8, an extension block 10 is provided above the second filter screen 9, a baffle 11 is provided above the extension block 10, the baffle 11 cooperates with the extension block 10 to move dust toward both sides to prevent dust from accumulating on the top, a dustproof net 12 is provided at the center of the extension block 10, a second heat dissipation port 13 is provided on the left side of the protective shell 1, a third filter screen 14 is connected to the inner side of the second heat dissipation port 13, an arc block 15 is provided below the third filter screen 14, the third filter screen 14 cooperates with the arc block 15 to make dust fall naturally, thereby improving the dustproof effect.

[0033] See the attached drawings in the specification Figure 1-4 The right side of the protective shell 1 is rotatably connected with an opening and closing cover, and the bottom of the protective shell 1 is fixedly connected with a shell base. The center point of the protective shell 1 is on the same horizontal line as the center point of the device body 2. The protective shell 1 is opened by the opening and closing cover and placed into the device body 2.

[0034] See the attached drawings in the specification Figure 1-4 The folding plate 4 is connected to the protective shell 1 in a rotating manner. The folding plate 4 and the pull block 5 are installed in an integrated manner. The length of the folding plate 4 is consistent with the length of the air inlet 7. The folding plate 4 is limited by cooperating with the protective shell 1, which facilitates the subsequent protection of the air inlet 7.

[0035] See the attached drawings in the specification Figure 1-4The folding plate 4 is integrated with the first filter 6, the first filter 6 is a three-sided structure, the first filter 6 is integrated with the air inlet 7, and the first filter 6 is used to fix and protect the air inlet 7, so that dust will not enter the protective shell 1 through the air inlet 7.

[0036] See the attached drawings in the specification Figure 1-4 The first heat dissipation port 8 is evenly and equidistantly distributed on both sides above the protective shell 1. The first heat dissipation port 8 and the second filter screen 9 are installed in an integrated manner. The connection method between the protective shell 1 and the extension block 10 is a hot-melt connection. Through the cooperation between the first heat dissipation port 8 and the second filter screen 9, the second filter screen 9 protects the first heat dissipation port 8 to prevent dust from entering.

[0037] See the attached drawings in the specification Figure 1-4 The extension block 10 and the baffle 11 are installed in an integrated manner. The baffle 11 has a low outer and high inner structure. The extension block 10 and the dustproof net 12 are engaged with each other. The baffle 11 cooperates with the extension block 10 to drop the dust to both sides, and then blows the dust through the first heat dissipation port 8 to prevent dust accumulation. At the same time, the dustproof net 12 in the center area is quickly disassembled to complete the cleaning of the dust.

[0038] See the attached drawings in the specification Figure 1-4 The second heat dissipation port 13 is symmetrically distributed on both sides of the protective shell 1, the second heat dissipation port 13 and the third filter 14 are installed in an integrated manner, and the second heat dissipation port 13 and the arc block 15 are installed in an integrated manner. The inclined third filter 14 cooperates with the arc block 15, so that the dust at the second heat dissipation port 13 falls directly and will not accumulate at the second heat dissipation port 13, ensuring convenient and quick use.

[0039] Working principle: When using the household inverter installation box, first, open the opening and closing cover to place the device body 2 inside the protective shell 1, and then install it in a suitable position through the base at the bottom of the protective shell 1. Later, during use, if the heat dissipation of the device body 2 causes the heat inside the protective shell 1 to be too high, the heat dissipation mechanism 3 starts to operate, so that air enters the inside of the protective shell 1 through the air inlet 7. When the air enters, it first contacts the first filter 6. Under the filtration of the first filter 6, dust accumulates above the first filter 6. When the air intake stops, because the first filter 6 itself is an inclined structure, part of the dust will fall naturally, reducing the amount of dust above the first filter 6;

[0040] As mentioned above, when the heat dissipation mechanism 3 is operating, air begins to circulate at the first heat dissipation port 8 and flows outward. Under the limitation of the baffle 11, the air flows toward both sides of the protective shell 1, thereby blowing off the dust on the top to prevent it from accumulating on the top of the protective shell 1, and the dust in the center of the top is intercepted by the dustproof net 12. The top can be cleaned by removing the dustproof net 12 for cleaning. Secondly, air also begins to circulate outward from the second heat dissipation port 13, blowing the surface of the third filter 14 and the arc block 15 to prevent the dust falling from above from staying in this area.

[0041] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A household inverter installation box, comprising a protective housing (1), characterized in that: A device body (2) is arranged inside the protective shell (1), a heat dissipation mechanism (3) is arranged above the inside of the protective shell (1), an air inlet (7) is arranged on the left side of the heat dissipation mechanism (3), the outer side of the air inlet (7) is connected to a folding plate (4), a first filter (6) is connected below the folding plate (4), and a pull block (5) is connected to the left side of the folding plate (4); A first heat dissipation port (8) is provided on the top of the protective shell (1), a second filter (9) is connected to the top of the first heat dissipation port (8), an extension block (10) is provided on the top of the second filter (9), a baffle (11) is provided on the top of the extension block (10), a dustproof net (12) is provided at the center of the extension block (10), a second heat dissipation port (13) is provided on the left side of the protective shell (1), a third filter (14) is connected to the inner side of the second heat dissipation port (13), and an arc block (15) is provided below the third filter (14).

2. A household inverter installation box according to claim 1, characterized in that: The right side of the protective shell (1) is rotatably connected to an opening and closing cover, the bottom of the protective shell (1) is fixedly connected to a shell base, and the center point of the protective shell (1) is on the same horizontal line as the center point of the device body (2).

3. A household inverter installation box according to claim 1, characterized in that: The folding plate (4) is connected to the protective shell (1) by rotational connection, the folding plate (4) and the pull block (5) are installed in an integrated manner, and the length of the folding plate (4) is consistent with the length of the air inlet (7).

4. A household inverter installation box according to claim 1, characterized in that: The folding plate (4) and the first filter screen (6) are installed in an integrated manner; the first filter screen (6) is a three-sided structure; and the first filter screen (6) and the air inlet (7) are installed in an integrated manner.

5. A household inverter installation box according to claim 1, characterized in that: The first heat dissipation openings (8) are evenly and equidistantly distributed on both sides of the upper side of the protective shell (1); the first heat dissipation openings (8) and the second filter screen (9) are installed in an integrated manner; and the protective shell (1) and the extension block (10) are connected by hot-melt connection.

6. A household inverter installation box according to claim 1, characterized in that: The extension block (10) and the baffle (11) are installed in an integrated manner; the baffle (11) is of a low outer and high inner structure; and the extension block (10) and the dustproof net (12) are mutually engaged.

7. A household inverter installation box according to claim 1, characterized in that: The second heat dissipation openings (13) are symmetrically distributed on both sides of the protective shell (1); the second heat dissipation openings (13) are integrally installed with the third filter screen (14); and the second heat dissipation openings (13) are integrally installed with the arc block (15).

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