CN210167962U - Frequency conversion cabinet - Google Patents
Frequency conversion cabinet Download PDFInfo
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- CN210167962U CN210167962U CN201921488106.5U CN201921488106U CN210167962U CN 210167962 U CN210167962 U CN 210167962U CN 201921488106 U CN201921488106 U CN 201921488106U CN 210167962 U CN210167962 U CN 210167962U
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- frequency conversion
- conversion cabinet
- cabinet body
- heat exchange
- cavity
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Abstract
The utility model relates to a frequency conversion cabinet, including the frequency conversion cabinet body, set up in the axial fan of frequency conversion cabinet body air suction opening department and set up in the louvre of frequency conversion cabinet body air outlet department, its characterized in that: the upper end in the frequency conversion cabinet body is also provided with a heat dissipation structure, the heat dissipation structure comprises a water cooling tank and heat exchange fins, water bath is carried out in the water cooling tank, the heat exchange fins are arranged in rows, the inner cavities of the heat exchange fins are hollow, the inlets of the heat exchange fins are respectively communicated with the windward cavity, the outlets of the heat exchange fins are respectively communicated with the air supply cavity, and the windward cavity, the inner cavities of the heat exchange fins and the air supply cavity form a ventilation cavity channel which is communicated with each other; the utility model discloses a frequency conversion cabinet, including frequency conversion cabinet body, windward chamber, air supply chamber and frequency conversion cabinet body, the inlet scoop intercommunication of windward chamber and frequency conversion cabinet body, the air supply chamber communicates with the supply-air outlet of frequency conversion cabinet body to be provided with the drainage membrane in supply-air outlet department, this frequency conversion cabinet can fully cool down frequency conversion electrical component, and gas temperature is low, and cooling effect is good, has effectively reduced the fog in the gas, eliminates the potential safety hazard of electric leakage.
Description
Technical Field
The utility model relates to a frequency conversion cabinet technical field especially relates to a frequency conversion cabinet.
Background
The frequency conversion cabinet is an electric control device which applies frequency conversion technology and microelectronic technology and controls an alternating current motor by changing the frequency of a working power supply of the motor. The current frequency conversion cabinet is generally provided with a plurality of groups of frequency converters and a frequency converter power supply system, the part of the frequency conversion cabinet has large heat productivity, electrical components inevitably generate a large amount of heat during working operation, the temperature in the cabinet body is rapidly raised, and high-power electronic components are arranged inside the frequency conversion cabinet and are easily influenced by the working temperature and the working humidity. At present, the heat dissipation system of the frequency conversion cabinet is single, for example, the heat dissipation holes are formed in the cabinet body, or the heat dissipation fan is independently arranged in the cabinet body to dissipate heat, so that the heat dissipation effect is poor, and the heat dissipation requirement cannot be met.
In the utility model patent with patent number CN 208691129U, "a frequency conversion cabinet" is disclosed: the bottom cooling sections are respectively installed on the inner wall of the bottom of the frequency conversion cabinet, the top cooling section is installed at the top of the cabinet body, and the bottom cooling section is communicated with the top cooling section through the communicating connecting section, so that the air flow is cooled by heat exchange after flowing through the cooling pipe. The cooling pipe and the variable frequency power supply system are arranged together in the patent, so that the maintenance and the inspection are difficult; most of airflow air advances along the two sides of the frequency converter and comes out of the air outlet, and only a small part of air passes through the upper end face and the lower end face of the frequency converter and the end face close to the water tank and finally comes out of the air outlet, so that the cooling effect on internal elements of the frequency converter is poor; in addition, when the temperature in the frequency conversion cabinet is too high and meets the outer wall of the cooling pipe with lower temperature, the high-temperature airflow is partially converted into water mist, and potential safety hazards exist when the water mist passes through the surface of an electronic element in a large quantity.
Disclosure of Invention
The utility model aims to provide a frequency conversion cabinet, which solves the problems that the cooling effect in the frequency conversion cabinet is not good, the high-temperature airflow part is liquefied into water mist, the potential safety hazard exists and the maintenance and the inspection are difficult in the prior art, the frequency conversion cabinet with the heat dissipation function separates a cooling structure from a frequency conversion system, and pipelines are arranged in an independent space, thereby being convenient for the later-stage inspection and the maintenance; can guarantee that all wind currents that get into through the air intake all can be through the cooling of cooling structure to by the lower extreme in the frequency conversion cabinet of being arranged after the filtering fog, fully cool down frequency conversion electrical component, the gas temperature is low, and cooling effect is good, has effectively reduced the fog in the gas, eliminates the potential safety hazard of electric leakage.
In order to solve the problem, the utility model relates to a frequency conversion cabinet adopts following technical scheme:
a frequency conversion cabinet comprises a frequency conversion cabinet body, an axial flow fan arranged at an air suction opening of the frequency conversion cabinet body and heat dissipation holes arranged at an air outlet of the frequency conversion cabinet body in a heating mode, wherein a heat dissipation structure is further arranged at the upper end in the frequency conversion cabinet body and comprises water cooling boxes and heat exchange fins arranged in rows in the water cooling boxes, inner cavities of the heat exchange fins are hollow, inlets of the heat exchange fins are respectively communicated with an air facing cavity, outlets of the heat exchange fins are respectively communicated with an air supply cavity, and the air facing cavity, the inner cavities of the heat exchange fins and the air supply cavity form ventilation cavity channels which are mutually communicated; the windward cavity is communicated with an air suction opening of the frequency conversion cabinet body, the air supply cavity is communicated with an air supply opening of the frequency conversion cabinet body, and a water filtering membrane is arranged at the air supply opening.
The frequency conversion cabinet is characterized in that a temperature sensor is installed in the frequency conversion cabinet, the temperature sensor is electrically connected with the controller, and the output end of the controller is connected with a switch for controlling a working circuit of the water cooling tank.
In the frequency conversion cabinet, the semiconductor refrigeration sheet is arranged on the side wall of the water cooling box.
In the frequency conversion cabinet, the flow-equalizing grating is arranged in the frequency conversion cabinet body and below the air supply cavity.
The air dust filter net is installed at the front end of the air suction opening of the frequency conversion cabinet body.
The utility model has the advantages as follows: the utility model discloses a frequency conversion cabinet, simple structure is practical, and the cooling efficiency is high, and factor of safety is high. This frequency conversion cabinet separates cooling structure and frequency conversion system, and wherein frequency conversion system establishes in the lower part of frequency conversion cabinet, and cooling structure establishes on the upper portion of frequency conversion cabinet, and after frequency conversion cabinet upper portion fully cooled down the air current that gets into in the frequency conversion cabinet, the air current reentered frequency conversion cabinet lower part is cooled down electrical components, and cooling structure and frequency conversion component are installed respectively in independent space, leave sufficient space for frequency conversion cabinet lower part electrical components all around, and the later stage of being convenient for is maintained circuit component's inspection.
For at inverter cabinet inner wall installation water-cooled tube, the mode to the air current cooling when the air current passes through water-cooled tube four weeks, in this scheme, will get into the whole drainage of the air current in the inverter cabinet to the inner chamber of the heat transfer fin in the water-cooled box, thereby guarantee that all air currents that get into through the air intake all can carry out the heat transfer with the liquid in the water-cooled box, the air current is whole synchronous by the cooling, the phenomenon that only the air current of small part of the flow through water-cooled tube just can be cooled down among the prior art has effectively been solved, the air current cooling is efficient. In addition, the water filtering membrane is arranged in the air supply cavity, so that fog in the air flow can be filtered, the air flow is discharged to the lower end in the frequency conversion cabinet after passing through the water filtering membrane, the fog amount carried by the air flow is effectively reduced, and the potential safety hazard of electric leakage possibly caused by a large amount of fog is eliminated. Because the air current is whole by the heat transfer, so the gas temperature that flows to frequency conversion electric elements wholly reduces, and the high cooling of heat exchange efficiency is effectual, consequently has low to the velocity of flow of air current, and the air current circulates with lower velocity of flow and realizes abundant heat transfer, can reach better cooling effectually, consequently requires lowly to the fan rotational speed, and is more energy-conserving.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the heat dissipation structure.
Fig. 3 is a schematic structural view of a heat exchange fin.
Fig. 4 is a cross-sectional view taken along line a-a' of fig. 3.
The reference numbers in the figures illustrate: 1-a frequency conversion cabinet body, 2-an air suction opening, 3-an air outlet, 4-a heat dissipation structure, 41-a water cooling box, 42-heat exchange fins, 43-a windward cavity, 44-an air supply cavity, 45-a water filtering film, 5-a temperature sensor, 6-a controller, 7-a semiconductor refrigeration sheet and 8-a uniform flow grating.
Detailed Description
In order to make the technical purpose, technical solution and advantageous effects of the present invention clearer, the technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.
Example 1: a frequency conversion cabinet is shown in figures 1-4 and comprises a frequency conversion cabinet body 1, wherein an inner cavity of the frequency conversion cabinet body 1 is divided into an upper part and a lower part, a plurality of groups of frequency converters and a frequency converter power supply system are respectively arranged in an inner cavity of the lower part of the frequency conversion cabinet body, a cooling structure 4 is arranged in an upper cavity of the frequency conversion cabinet body 1, and the cooling structure 4 can cool electrical elements of the frequency converters and power supply elements of the frequency converters. The inlet scoop 2 is installed and is guaranteed converter cabinet body inner chamber and external intercommunication at the up end of converter cabinet body, installs an axial fan in inlet scoop 2 department, inhales the inner chamber of converter cabinet body 1 with the outside air, and air outlet 3 sets up on the converter cabinet body is close to a lateral wall of lower extreme, and air outlet 3 department installs the orifice plate that evenly spreads the louvre.
Heat radiation structure 4 on frequency conversion cabinet body upper portion includes water-cooling tank 41, heat transfer fin 42 and windward chamber 43, air supply chamber 44, and the lateral wall of water-cooling tank 41 is installed on the inner wall of frequency conversion cabinet body 1 through supporting the angle bar, injects into in the water-cooling tank 41 and trades hot water, installs semiconductor refrigeration piece 7 on the lateral wall of water-cooling tank 41, and semiconductor refrigeration piece 7 circular telegram work can be to trading hot water refrigeration. The inner cavities of the heat exchange fins 42 are hollow, air flow circulates from the inner cavities of the heat exchange fins 42, meanwhile, the heat exchange fins 42 are vertically arranged, each heat exchange fin is in a vertically flat shape, all or most of the outer surfaces of each heat exchange fin 42 are bathed in heat exchange water in the water cooling tank 41, the outer surfaces of the heat exchange fins 42 and the surfaces of the heat exchange water in contact form heat exchange surfaces, and the vertically flat heat exchange fins ensure a large heat exchange area. Wherein the upper ends of the heat exchange fins are inlets, the lower ends of the heat exchange fins are outlets, each heat exchange fin 42 is respectively communicated with the windward cavity 43 at the inlet, the windward cavity 43 is communicated with the suction inlet of the frequency conversion cabinet body 1, each heat exchange fin 42 is respectively communicated with the air supply cavity 44 at the outlet, the air supply cavity 44 is communicated with the air supply outlet 3 of the frequency conversion cabinet body 1, so that the air suction inlet 2, the windward cavity 43, the inner cavity of each heat exchange fin 42, the air supply cavity 44 and the air supply outlet 3 form a through ventilation cavity channel, the airflow enters from the windward cavity 443 firstly, then is shunted to enter the inner cavity of each heat exchange fin 42, finally the airflow in the shunted inner cavity of the heat exchange fin 42 is converged and discharged through the air supply cavity 44, the airflow is shunted to facilitate the airflow in the heat exchange fins 42 to fully exchange heat with heat exchange water, the converged airflow is all the airflow, namely the airflow entering through the air suction inlet 2 can exchange heat with the liquid in the water cooling, the air current is whole to be cooled down in step, has effectively solved among the prior art only the phenomenon that the air current of few passages through the water-cooled tube could be cooled down, improves the cooling efficiency of air current greatly.
When the air current temperature is too high, atomizing phenomenon can appear when the high temperature air current meets the lower heat transfer fin 42 of temperature, and air current humidity is high, and in order to reduce the humidity in the air current, department is provided with the drainage membrane 45 in air supply opening, and the drainage membrane can absorb the moisture in the air current of process to guarantee that the air current of flow direction frequency conversion cabinet lower part keeps certain drying, avoid the air current that humidity is big to be liquefied into water smoke, improve the security.
The flow equalizing grating 8 is arranged in the frequency conversion cabinet body and below the air supply cavity 44, and the flow equalizing grating 8 is in an arc shape bent downwards and can guide airflow to flow to the position where the frequency converter and the frequency converter power supply system are arranged.
Install temperature-sensing ware 5 at this internal at the inverter cabinet, temperature-sensing ware 5 is connected with controller 6 electricity, and the output of controller 6 is connected with the switch of control semiconductor refrigeration piece 7 work, and when this internal temperature of inverter cabinet rose to the uniform temperature, controller control semiconductor refrigeration piece 7 worked and refrigerates, and when this internal temperature of inverter cabinet reduced to the uniform temperature, the controller control semiconductor refrigeration piece stop work stopped refrigeration.
Install the air dust filter net at 2 front ends of inlet scoop of inverter cabinet body, carry out first edulcoration to the air current that gets into the inverter cabinet body, prevent that wastepaper, leaf etc. from getting into the inverter cabinet body.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating but not limiting the technical solution of the present invention, but the protection scope of the present invention is not limited thereto, and any equivalent replacement and modification or partial replacement that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a frequency conversion cabinet, includes the frequency conversion cabinet body, sets up in the axial fan of frequency conversion cabinet body air suction opening department and sets up in the louvre of frequency conversion cabinet body air outlet department, its characterized in that: the upper end in the frequency conversion cabinet body is also provided with a heat dissipation structure, the heat dissipation structure comprises a water cooling tank and heat exchange fins, water bath is carried out in the water cooling tank, the heat exchange fins are arranged in rows, the inner cavities of the heat exchange fins are hollow, the inlets of the heat exchange fins are respectively communicated with the windward cavity, the outlets of the heat exchange fins are respectively communicated with the air supply cavity, and the windward cavity, the inner cavities of the heat exchange fins and the air supply cavity form a ventilation cavity channel which is communicated with each other; the windward cavity is communicated with an air suction opening of the frequency conversion cabinet body, the air supply cavity is communicated with an air supply opening of the frequency conversion cabinet body, and a water filtering membrane is arranged at the air supply opening.
2. The frequency conversion cabinet according to claim 1, wherein: the temperature sensor is installed in the frequency conversion cabinet body and electrically connected with the controller, and the output end of the controller is connected with the switch for controlling the working circuit of the water cooling tank.
3. The frequency conversion cabinet according to claim 1, wherein: and the side wall of the water cooling box is provided with a semiconductor refrigerating sheet.
4. The frequency conversion cabinet according to claim 1, wherein: and a uniform flow grating is arranged in the frequency conversion cabinet body and below the air supply cavity.
5. The frequency conversion cabinet according to claim 1, wherein: and an air dust filtering net is arranged at the front end of the air suction opening of the frequency conversion cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488106.5U CN210167962U (en) | 2019-09-09 | 2019-09-09 | Frequency conversion cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488106.5U CN210167962U (en) | 2019-09-09 | 2019-09-09 | Frequency conversion cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210167962U true CN210167962U (en) | 2020-03-20 |
Family
ID=69796161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921488106.5U Expired - Fee Related CN210167962U (en) | 2019-09-09 | 2019-09-09 | Frequency conversion cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210167962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654119A (en) * | 2021-07-26 | 2021-11-16 | 宁夏如意科技时尚产业有限公司 | Air conditioner frequency converter cooling device and method |
-
2019
- 2019-09-09 CN CN201921488106.5U patent/CN210167962U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654119A (en) * | 2021-07-26 | 2021-11-16 | 宁夏如意科技时尚产业有限公司 | Air conditioner frequency converter cooling device and method |
| CN113654119B (en) * | 2021-07-26 | 2022-09-16 | 宁夏如意科技时尚产业有限公司 | Air conditioner frequency converter cooling device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 Termination date: 20210909 |