CN205356215U - Frequency converting control cabinet - Google Patents
Frequency converting control cabinet Download PDFInfo
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- CN205356215U CN205356215U CN201620070136.4U CN201620070136U CN205356215U CN 205356215 U CN205356215 U CN 205356215U CN 201620070136 U CN201620070136 U CN 201620070136U CN 205356215 U CN205356215 U CN 205356215U
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- switch board
- cabinet
- frequency
- board cabinet
- conversion control
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Abstract
The utility model discloses a frequency converting control cabinet, including the switch board cabinet body, the cold -rolled steel sheet that the switch board cabinet body adopted thickness to be not less than 2mm is made, and the internal and external surface of the switch board cabinet body all adopts spraying plastics or zinc -plating to handle, the internal circuit breaker that is equipped with the converter and is connected with the inlet wire power of switch board cabinet, the top of the switch board cabinet body is equipped with the protection top cap, and the bottom of the switch board cabinet body is equipped with bottom plate and air intake, and the top side of the switch board cabinet body is equipped with the air outlet, and axial fan is equipped with to the inboard of air outlet, is equipped with the entrance hole on the bottom plate, the cabinet door has been installed in the front of the switch board cabinet body, is equipped with control panel, multiple instrument and meter and a plurality of pilot lamp on the cabinet door. The utility model discloses a frequency converting control cabinet will the various electrical components including the converter all to concentrate on the cabinet internal, can reduce the external environment condition and to electrical components's influence degree, reduce the degree that electric elements received environmental pollution, the electric shock that has also reduced frequency converting control cabinet operating personnel is dangerous, has good protecting effect.
Description
Technical field
This utility model relates to electrical equipment technical field, more specifically, particularly relates to a kind of frequency-conversion control cabinet.
Background technology
China is energy consumption big country, and energy utilization rate is very low, and energy reserves is not enough.In the China Powers of 2013 consume, 60-70% is power current, and in the motor capacity that total capacity is 5.8 hundred million kilowatts, only less than the motor of 20,000,000 kilowatts with VFC.According to market intelligence analysis, in China, having at least 1.8 hundred million kilowatts with fluctuating load, the motor with energy-saving potential, therefore country advocates conservation measures energetically, and recommends variable-frequency control technique emphatically.Application variable-frequency control technique, it is possible to greatly improve the control accuracy of motor speed, make motor run under the most energy-conservation rotating speed.For blower fan water pump, according to hydromechanical principle, shaft power is directly proportional to the cube of rotating speed；When Air Quantity Required reduces, and rotation speed of fan reduces, its power is pressed the cube of rotating speed and is declined, and therefore, the power savings of accurate speed governing is considerable.Similar, many fluctuating load motors are generally according to the capacity of greatest requirements electrogenesis in next life motivation, therefore the allowance of design is generally bigger than normal, and in actual motion, the ratio shared by the time of light running is but very high.If employing variable-frequency control technique, then can improve work efficiency during light running greatly.As can be seen here, the converter energy-saving potential for fluctuating load is very huge.
Converter is adopted to be controlled compared with the motor of Traditional control to motor, it is possible to save electric power 48.8%, greatly saved the energy.Moreover, traditional motor operating cost is made up of initiated purchase cost, energy cost and maintenance cost three part, wherein energy cost constitutes about the 77% of motor operating cost, the control mode of converter can greatly reduce energy cost, add frequency conversion pneumatic after the impact of motor is reduced, safeguard and maintenance capacity also decreases, so operating cost is greatly reduced.Converter starts motor from 0HZ, and its Acceleration of starting time can adjust, thus impact when decreasing startup, the electric component of motor and mechanical part caused, enhances the reliability of system, effectively extends the service life of motor.Additionally, VFC can reduce current fluctuation during unit starting, this current fluctuation can affect the electricity consumption of electrical network and other equipment, and the minimum level that the peak value of starting current can effectively be reduced by converter；Simultaneously after installation converter carries out frequency control, the rotating speed of motor substantially slows down, and advantageously reduces the noise during operation of motor.
Utility model content
The purpose of this utility model is in that for above-mentioned the deficiencies in the prior art, a kind of operating frequency being mainly used in adjustment equipment is provided, reduce energy loss, guarantee equipment can start smoothly, the big electric current produced when minimizing equipment the starts damage to motor, carry the function of analog input, PID control, pump switching control, communication function, macroefficiency and multistage speed simultaneously, the frequency-conversion control cabinet of the industries such as electric power, metallurgy, oil, chemical industry, municipal administration, central hollow water transfer process can be widely used in.
The technical solution of the utility model is achieved in that a kind of frequency-conversion control cabinet, and including switch board cabinet, described switch board cabinet adopts the cold-rolled steel sheet that thickness is not less than 2mm to make, and the surfaces externally and internally of switch board cabinet all adopts plastic-blasting or zinc-plated process；Converter and the chopper being connected with incoming power it is provided with in switch board cabinet, the top of switch board cabinet is provided with protection top cover, the bottom of switch board cabinet is provided with base plate and air inlet, the top-side of described switch board cabinet is provided with air outlet, the inner side of described air outlet is equipped with the axial flow blower for outside convulsion, and described base plate is provided with entrance hole；The front of described switch board cabinet is equiped with cabinet door, and described cabinet door is provided with control panel, multiple instrument and meter and multiple display lamp.
Further, described converter is arranged on the middle part of switch board cabinet, and the minimum spacing of the Edge Distance switch board cabinet top of converter, bottom, the left and right sides, cabinet door and chopper is more than 300mm.
Further, described air outlet is arranged on the side of described protection top cover.
Further, described air inlet, air outlet and entrance hole place are respectively arranged with Air Filter.
Further, described axial flow blower is fixed on the inside at described switch board cabinet top, is provided with damping washer between described axial flow blower and switch board cabinet.
Further, described damping washer is made up of plastics or elastomeric material.
Further, described instrument and meter includes voltmeter, ammeter and frequency meter, and described display lamp includes power supply indicator, alarm lamp, run indicator and power frequency display lamp.
Further, described switch board cabinet and cabinet door are equipped with grounding device.
Further, all securing members in described switch board cabinet all adopt galvanized part.
Further, described control panel is provided with the potentiometer for frequency modulation speed change.
Compared with prior art, this utility model has the advantage that
1, the various electric elements including converter are all concentrated in cabinet by frequency-conversion control cabinet of the present utility model, the external environment condition influence degree to electric elements can be reduced, reduce the electrical equipment degree by environmental pollution, also reduce the Danger Electric shock risk of frequency-conversion control cabinet operator, there is good protection effect.
2, this utility model has chopper in frequency-conversion control cabinet indoor design; frequency-conversion control cabinet is helped to complete the make-break operation of circuit; and short circuit or overload provide protection and the safety of the protection operator that can cut off the electricity supply when maintenance of motor when can occur at circuit and converter.
3, this utility model designs display device and guidance panel on the cabinet of frequency-conversion control cabinet, it is connected with the electric elements within frequency-conversion control cabinet, can intuitively show the running status of frequency-conversion control cabinet, facilitate operator control the operation of converter plant and the controlled devices such as motor are carried out execute-in-place simultaneously；The operation of frequency-conversion control cabinet and mode of operation can be reflected directly in the instrument and meter on cabinet surface and on display lamp, it is achieved the real-time monitoring to converter duty.
4, this utility model is provided with the potentiometer for speed change frequency modulation on the control panel of frequency-conversion control cabinet, it is possible to carries command signal according to the output frequency that operator are manually entered to motor, controls the rotation of motor；VFC case is provided simultaneously with power frequency handoff functionality, it is ensured that when converter breaks down, by automatic control loop, motor is switched back into power frequency supply.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but is not intended that any restriction of the present utility model.
Fig. 1 is the switch board cabinet internal structure schematic diagram of this utility model frequency-conversion control cabinet.
Fig. 2 is the front view of this utility model frequency-conversion control cabinet.
In figure, 1-switch board cabinet, 2-cabinet door, 3-converter, 4-chopper, 5-connecting terminal block, 6-air inlet, 7-air outlet, 8-axial flow blower, 9-control panel, 10-instrument and meter, 11-run indicator.
Detailed description of the invention
Consulting shown in Fig. 1 and Fig. 2, a kind of frequency-conversion control cabinet of the present utility model, including switch board cabinet 1, described switch board cabinet 1 adopts the cold-rolled steel sheet that thickness is not less than 2mm to make, and the surfaces externally and internally of switch board cabinet 1 all adopts plastic-blasting or zinc-plated process；Converter 3 and the chopper 4 being connected with incoming power it is provided with in switch board cabinet 1, described converter 3 is arranged on the middle part of switch board cabinet 1, and the minimum spacing of Edge Distance switch board cabinet 1 top of converter 3, bottom, the left and right sides, cabinet door 2 and chopper 4 is more than 300mm.Chopper 4 is connected with connecting terminal block 5.
The top of switch board cabinet 1 is provided with protection top cover, the bottom of switch board cabinet 1 is provided with base plate and air inlet 6, the top-side of described switch board cabinet 1 is provided with air outlet 7, and the inner side of described air outlet 7 is equipped with the axial flow blower 8 for outside convulsion, and described base plate is provided with entrance hole；Described air outlet 7 is arranged on the side of described protection top cover, and described air inlet 6, air outlet 7 and entrance hole place are respectively arranged with Air Filter.Described axial flow blower 8 is fixed on the inside at described switch board cabinet 1 top, is provided with damping washer between described axial flow blower 8 and switch board cabinet 1, and described damping washer is made up of plastics or elastomeric material.
The front of described switch board cabinet 1 is equiped with cabinet door 2, described cabinet door 2 is provided with control panel 9, multiple instrument and meter 10 and multiple display lamp 11, described instrument and meter 10 includes voltmeter, ammeter and frequency meter, and described display lamp 11 includes power supply indicator 11, alarm lamp 11, run indicator 11 and power frequency display lamp 11.Described control panel 9 is provided with the potentiometer for frequency modulation speed change.
Being equipped with grounding device on described switch board cabinet 1 and cabinet door 2, all securing members in described switch board cabinet 1 all adopt galvanized part.
Switch board cabinet specific requirement of the present utility model is as follows: switch board cabinet should have certain mechanical strength, the smooth not damaged of periphery, adopts and is not less than cold-rolled steel sheet making thick for 2.0mm；All should do anti-corrosion treatment inside and outside switch board cabinet, adopt plastic-blasting or zinc-plated process, and plastic-blasting layer or zinc coat can not have and come off；Components and parts beeline in control panel on cabinet door and other components and parts and switch board cabinet should be not less than 200mm, switch board cabinet and chamber door will reliable grounds, binding post on connecting terminal block should with the cross-sections match of maximum wire, and earth lead adopts copper litz wire.
The installation requirement of this utility model converter is as follows: converter is preferably mounted on the middle part within switch board cabinet, and right angle setting, surface and underface to be avoided installing the bigger components and parts being likely to stop air draft and air intake；The minimum spacing of converter lower edges distance controlling cabinet cabinet top, bottom or internal partition or bigger components and parts should be greater than 300mm.
This utility model frequency converter control cabinet has following general requirement: frequency converter control cabinet integral sealing designs, and is aerated by custom-designed air inlet, air outlet；The top of switch board is provided with protection top cover and air outlet, and protection top cover is used for preventing foreign material from falling directly into, and it is highly wanted rationally, it is to avoid affect air draft；Base plate, air inlet and entrance hole it is provided with bottom switch board；The air channel of frequency-conversion control cabinet is reasonable in design, and air draft is unobstructed, it is to avoid form eddy current in cabinet, forms dust accretions in fixed position；Installing protection network at air inlet, air outlet and entrance hole place, it is prevented that cotton-shaped foreign material fall directly into, and Air Filter should be designed as detachable, with easy cleaning and maintenance, the grid of Air Filter is little simultaneously, thus effectively stopping tiny floccule；Must guarantee that the direction of rotation of the top of frequency-conversion control cabinet and axial flow blower is correct, it is ensured that outwards convulsion.Axial flow blower is arranged on the inside at frequency-conversion control cabinet top, required screw is installed and must adopt non-return bullet part, prevent axial flow blower from coming off and cause the damage of element and equipment in cabinet, and between axial flow blower and switch board cabinet, install plastics additional or damping washer that rubber is made, the noise caused to reduce blower fan to shake.Cabinet door at frequency-conversion control cabinet needs to adopt gasket seal or fluid sealant to carry out certain encapsulation process with other seam crossings, it is prevented that dust enters.
Embodiment provided above is better embodiment of the present utility model, only it is used for this utility model is conveniently described, not this utility model is done any pro forma restriction, any art has usually intellectual, if in the scope without departing from the carried technical characteristic of this utility model, utilize the Equivalent embodiments that the done local of this utility model disclosed technology content is changed or modified, and without departing from technical characteristic content of the present utility model, all still fall within the scope of this utility model technical characteristic.
Claims (10)
1. frequency-conversion control cabinet, it is characterised in that: including switch board cabinet, described switch board cabinet adopts the cold-rolled steel sheet that thickness is not less than 2mm to make, and the surfaces externally and internally of switch board cabinet all adopts plastic-blasting or zinc-plated process；Converter and the chopper being connected with incoming power it is provided with in switch board cabinet, the top of switch board cabinet is provided with protection top cover, the bottom of switch board cabinet is provided with base plate and air inlet, the top-side of described switch board cabinet is provided with air outlet, the inner side of described air outlet is equipped with the axial flow blower for outside convulsion, and described base plate is provided with entrance hole；The front of described switch board cabinet is equiped with cabinet door, and described cabinet door is provided with control panel, multiple instrument and meter and multiple display lamp.
2. frequency-conversion control cabinet according to claim 1, it is characterised in that: described converter is arranged on the middle part of switch board cabinet, and the minimum spacing of the Edge Distance switch board cabinet top of converter, bottom, the left and right sides, cabinet door and chopper is more than 300mm.
3. frequency-conversion control cabinet according to claim 1, it is characterised in that: described air outlet is arranged on the side of described protection top cover.
4. frequency-conversion control cabinet according to claim 1, it is characterised in that: described air inlet, air outlet and entrance hole place are respectively arranged with Air Filter.
5. frequency-conversion control cabinet according to claim 1, it is characterised in that: described axial flow blower is fixed on the inside at described switch board cabinet top, is provided with damping washer between described axial flow blower and switch board cabinet.
6. frequency-conversion control cabinet according to claim 5, it is characterised in that: described damping washer is made up of plastics or elastomeric material.
7. frequency-conversion control cabinet according to claim 1, it is characterised in that: described instrument and meter includes voltmeter, ammeter and frequency meter, and described display lamp includes power supply indicator, alarm lamp, run indicator and power frequency display lamp.
8. frequency-conversion control cabinet according to claim 1, it is characterised in that: described switch board cabinet and cabinet door are equipped with grounding device.
9. frequency-conversion control cabinet according to claim 1, it is characterised in that: all securing members in described switch board cabinet all adopt galvanized part.
10. frequency-conversion control cabinet according to claim 1, it is characterised in that: described control panel is provided with the potentiometer for frequency modulation speed change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070136.4U CN205356215U (en) | 2016-01-22 | 2016-01-22 | Frequency converting control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070136.4U CN205356215U (en) | 2016-01-22 | 2016-01-22 | Frequency converting control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205356215U true CN205356215U (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620070136.4U Active CN205356215U (en) | 2016-01-22 | 2016-01-22 | Frequency converting control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205356215U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207776A (en) * | 2016-07-29 | 2016-12-07 | 安溪县百家宜家居用品有限公司 | A kind of adjustable cabinet of levelness |
| CN110854713A (en) * | 2019-10-21 | 2020-02-28 | 上海日舒科技纺织有限公司 | Frequency conversion control power box of two-for-one twister |
| CN110972422A (en) * | 2019-11-29 | 2020-04-07 | 国网山东省电力公司临沂供电公司 | Be provided with dampproofing electric power communication cabinet of function |
-
2016
- 2016-01-22 CN CN201620070136.4U patent/CN205356215U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207776A (en) * | 2016-07-29 | 2016-12-07 | 安溪县百家宜家居用品有限公司 | A kind of adjustable cabinet of levelness |
| CN110854713A (en) * | 2019-10-21 | 2020-02-28 | 上海日舒科技纺织有限公司 | Frequency conversion control power box of two-for-one twister |
| CN110972422A (en) * | 2019-11-29 | 2020-04-07 | 国网山东省电力公司临沂供电公司 | Be provided with dampproofing electric power communication cabinet of function |
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