CN220674187U

CN220674187U - Heat radiation structure of frequency converter

Info

Publication number: CN220674187U
Application number: CN202321015298.4U
Authority: CN
Inventors: 闫志强; 李可; 徐智
Original assignee: ANYHERTZ DRIVE(SHENZHEN) CO LTD
Current assignee: ANYHERTZ DRIVE(SHENZHEN) CO LTD
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2024-03-26
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to the technical field of frequency converters, in particular to a frequency converter radiating structure, which comprises a cabinet, wherein one side of the cabinet is rotationally connected with a cabinet door, the bottom of the cabinet is fixedly connected with a fixed base, the side wall of the cabinet is provided with an air inlet, the top of the cabinet is provided with an air outlet, the inner side of the air inlet is provided with a filter frame, the filter frame is fixedly connected with the cabinet, a fan is arranged in the filter frame and is opposite to the air inlet, the bottom of an inner cavity of the cabinet is provided with a small refrigerator, one side of the small refrigerator is provided with a water collecting tank, and the bottom of the inner cavity of the cabinet is provided with a temperature sensor; according to the utility model, the active carbon layer is arranged at the air inlet, when the air is blown inwards, the air is filtered through the active carbon layer, and dust and moisture in the air are filtered, so that the drying of the air entering the cabinet can be ensured, the possibility of condensation is reduced, meanwhile, the air in the cabinet can be cooled by air flowing through the cabinet, and the heat dissipation function of the cabinet is realized.

Description

Heat radiation structure of frequency converter

Technical Field

The utility model relates to the technical field of frequency converters, in particular to a heat dissipation structure of a frequency converter.

Background

The frequency converter is an electric control device which uses frequency conversion technology and microelectronic technology to control an alternating current motor by changing the frequency of a working power supply of the motor, the aging degree of internal components is directly affected by the internal heat dissipation effect of the frequency converter, but the existing heat dissipation part of the frequency converter is easy to absorb dust because of being in the interior for a long time, so that the heat dissipation speed is low and the heat dissipation is uneven.

In the prior art, as disclosed in application number 2022220918834, a heat dissipation structure of a frequency converter comprises a shell, a connecting piece, a connecting frame, a heat conducting plate, a pipeline bracket, a water inlet pipe, a heat dissipation plate, a water pump, a water return pipe, a fan and a transmission piece; through the positive horizontally heat-conducting plate design of lateral surface can be convenient for combine with other heat production equipment in the middle of this device use, can make the heat exchange efficiency of this device improve through this device's pipeline structure and water pump combination, the structure of fan can effectually avoid this device inside to take place the temperature to pile up simultaneously to this device's heat dissipation cooling efficiency has been improved.

However, when the prior frequency converter is used, if the temperature difference is large, condensation is easy to generate, liquid water formed by the condensation is combined with dust on the surface of an object to form a conductive channel, so that the electrical insulation is destroyed, and the original non-conductive area is changed into a conductive area. For example, condensation occurring on the surface of an IGBT power device, in combination with dust on the surface thereof, forms a conductive path between the drain and the gate, causing the gate to be damaged, eventually rendering the entire device ineffective; however, in the application document disclosed in the application number 2022220918834, the generation of condensation cannot be prevented.

Disclosure of Invention

The present utility model is directed to a heat dissipation structure of a frequency converter, so as to solve the above-mentioned problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a converter heat radiation structure, includes the rack, one side of rack rotates and links to each other there is the cabinet door, and the fixed unable adjustment base that links to each other of bottom of rack, and the air intake has been seted up to the lateral wall of rack, and the air outlet has been seted up at the top of rack, and the inboard of air intake is provided with the filtration frame, and the filtration frame links to each other with the rack is fixed, is provided with the fan in the filtration frame, and the fan is just to the air intake, and small-size refrigerator is installed to the inner chamber bottom of rack, and one side of small-size refrigerator is provided with the header tank, and the inner chamber bottom of rack is provided with temperature sensor.

Further, the filter frame comprises a partition plate, the partition plate is fixedly connected with the inner side wall of the cabinet, an activated carbon layer is arranged at the bottom of the partition plate, and the activated carbon layer is connected with the partition plate in a sliding mode.

Further, the both sides on active carbon layer all are provided with the slide rail, and the spout with slide rail matched with has all been seted up to the inside wall on partition panel and rack, and the active carbon layer passes through the slide rail and links to each other with partition panel, rack slip, and the fixed handle that links to each other of one end on active carbon layer is fixed.

Further, one side of the small refrigerator, which is close to the water collection tank, is provided with a cold air outlet, the side wall of the water collection tank is provided with a through hole, the cold air outlet is opposite to the through hole, the bottom of the water collection tank is provided with a drain pipe, and one end, which is far away from the water collection tank, of the drain pipe penetrates through the cabinet and extends outwards.

Further, the small refrigerator is an air conditioner refrigerating system or a semiconductor refrigerator.

Further, dustproof nets are arranged in the air inlet and the air outlet.

The utility model has the beneficial effects that:

1. according to the utility model, the active carbon layer is arranged at the air inlet, when the air is blown inwards, the air is filtered through the active carbon layer, dust and moisture in the air are filtered, so that the drying of the air entering the cabinet can be ensured, the possibility of condensation is reduced, meanwhile, the air in the cabinet can be cooled by air flowing through the cabinet, and the heat dissipation function of the cabinet is realized;

2. according to the utility model, the temperature sensor and the small refrigerator are arranged, the temperature sensor is used for detecting the temperature in the cabinet, when the air cooling cannot meet the cooling requirement, the small refrigerator can be started, when the air cooling cannot be performed, the small refrigerator is discharged from the water collection tank, a strong temperature difference is generated, the temperature of the water collection tank is in the lowest state, when condensation occurs, liquid water is generated in the water collection tank, and then the liquid water can be discharged outwards through the drain pipe, so that the electronic device cannot be influenced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the installation of the filter frame and cabinet of the present utility model;

FIG. 3 is a schematic view of the structure of the filter frame of the present utility model;

fig. 4 is a schematic diagram of the connection of the compact refrigerator of the present utility model to the header tank.

Reference numerals in the drawings are as follows:

1. a cabinet; 2. a cabinet door; 3. a fixed base; 4. an air inlet; 5. an air outlet; 6. a dust screen; 7. a filter frame; 71. a partition panel; 72. an activated carbon layer; 73. a slide rail; 74. a fixed handle; 75. a chute; 8. a blower; 9. a small refrigerator; 91. a cold air outlet; 10. a water collection tank; 101. a through hole; 102. a drain pipe; 11. a temperature sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a heat dissipation structure of a frequency converter includes a cabinet 1, a cabinet door 2 is rotatably connected to one side of the cabinet 1, a fixed base 3 is fixedly connected to the bottom of the cabinet 1, an air inlet 4 is provided on the side wall of the cabinet 1, an air outlet 5 is provided on the top of the cabinet 1, a filter frame 7 is provided on the inner side of the air inlet 4, the filter frame 7 is fixedly connected with the cabinet 1, a fan 8 is provided in the filter frame 7, the fan 8 faces the air inlet 4, external air can enter the cabinet 1 through starting the fan 8, the air entering the cabinet 1 is filtered by the filter frame 7, and the dryness of the air is kept, so that dew phenomenon in the cabinet 1 can be avoided, meanwhile, air cooling can be performed in the cabinet 1, a small refrigerator 9 is installed at the bottom of an inner cavity of the cabinet 1, and the small refrigerator 9 is generally not operated and can be started only under the condition that the air cooling cannot be satisfied;

a water collecting tank 10 is arranged on one side of the small refrigerator 9, the small refrigerator 9 sends cold air out through the water collecting tank 10 to cool the whole cabinet 1, if air with higher temperature and higher humidity meets the surface with lower temperature and the surface temperature is lower than the dew point temperature of the air, condensation can occur, liquid water is generated on the surface with lower temperature, and as the cabinet 1 is a relatively closed space, the temperature is the lowest, and when condensation occurs, the condensation occurs firstly;

because the cold air of the small refrigerator 9 can pass through the water collecting tank 10 first, condensation can directly occur in the water collecting tank 10, the bottom of the inner cavity of the cabinet 1 is provided with the temperature sensor 11, and the temperature sensor 11 is used for detecting the temperature in the cabinet 1 and judging whether to start the small refrigerator 9.

The filter frame 7 includes the partition plate 71, the fixed linking to each other of inside wall of partition plate 71 and rack 1, the bottom of partition plate 71 is provided with activated carbon layer 72, and activated carbon layer 72 and partition plate 71 slide and link to each other, partition plate 71, activated carbon layer 72 and the inside wall of rack 1 form a relatively airtight space, after the air gets into, will enter into rack 1 from activated carbon layer 72, utilize activated carbon layer 72 to filter the air, filter dust and moisture in the air, guarantee the drying of the air that enters into rack 1.

Both sides of the activated carbon layer 72 are provided with sliding rails 73, sliding grooves 75 matched with the sliding rails 73 are formed in the inner side walls of the partition plate 71 and the cabinet 1, the activated carbon layer 72 is connected with the partition plate 71 and the cabinet 1 in a sliding manner through the sliding rails 73, one end of the activated carbon layer 72 is fixedly connected with a fixed handle 74, and the activated carbon layer 72 can be pulled away from the partition plate 71, so that later replacement is facilitated.

The side that small-size refrigerator 9 is close to header tank 10 is provided with cold wind export 91, and through-hole 101 has been seted up to the lateral wall of header tank 10, and cold wind export 91 just is to through-hole 101, and the bottom of header tank 10 is provided with drain pipe 102, and the one end that drain pipe 102 kept away from header tank 10 runs through cabinet 1 and outwards stretches out, because the condensation directly will be produced in header tank 10, and the liquid water of production just also can follow drain pipe 102 and discharge.

The small refrigerator 9 can be an air conditioner refrigerating system or a semiconductor refrigerator; if the air conditioning system is used, the external machine can be arranged on the outer side wall of the cabinet 1; the semiconductor refrigerator, if any, has its refrigerated end located within the cabinet 1.

The dustproof nets 6 are arranged in the air inlet 4 and the air outlet 5, so that large particles and small flying insects can be prevented from entering.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a converter heat radiation structure, includes rack (1), its characterized in that, one side rotation of rack (1) links to each other has cabinet door (2), the fixed connection of the bottom of rack (1) has unable adjustment base (3), air intake (4) have been seted up to the lateral wall of rack (1), air outlet (5) have been seted up at the top of rack (1), the inboard of air intake (4) is provided with filtration frame (7), filtration frame (7) and rack (1) are fixed to link to each other, be provided with fan (8) in filtration frame (7), fan (8) are just air intake (4), small-size refrigerator (9) are installed to the inner chamber bottom of rack (1), one side of small-size refrigerator (9) is provided with header tank (10), the inner chamber bottom of rack (1) is provided with temperature sensor (11).

2. The frequency converter heat radiation structure according to claim 1, wherein the filter frame (7) comprises a partition plate (71), the partition plate (71) is fixedly connected with the inner side wall of the cabinet (1), an activated carbon layer (72) is arranged at the bottom of the partition plate (71), and the activated carbon layer (72) is slidably connected with the partition plate (71).

3. The heat dissipation structure of a frequency converter according to claim 2, wherein sliding rails (73) are arranged on two sides of the active carbon layer (72), sliding grooves (75) matched with the sliding rails (73) are formed in inner side walls of the partition plate (71) and the cabinet (1), the active carbon layer (72) is slidably connected with the partition plate (71) and the cabinet (1) through the sliding rails (73), and a fixed handle (74) is fixedly connected with one end of the active carbon layer (72).

4. The frequency converter heat radiation structure according to claim 1, wherein a cold air outlet (91) is arranged on one side, close to the water collecting tank (10), of the small refrigerator (9), a through hole (101) is formed in the side wall of the water collecting tank (10), the cold air outlet (91) is opposite to the through hole (101), a drain pipe (102) is arranged at the bottom of the water collecting tank (10), and one end, far away from the water collecting tank (10), of the drain pipe (102) penetrates through the cabinet (1) and extends outwards.

5. A frequency converter heat dissipating structure according to claim 4, characterized in that the small refrigerator (9) is an air conditioning refrigeration system or a semiconductor refrigerator.

6. The frequency converter heat radiation structure according to claim 1, wherein dust screens (6) are arranged in the air inlet (4) and the air outlet (5).