CN110581636A - Frequency conversion cabinet controlled by membrane switch - Google Patents
Frequency conversion cabinet controlled by membrane switch Download PDFInfo
- Publication number
- CN110581636A CN110581636A CN201910954991.XA CN201910954991A CN110581636A CN 110581636 A CN110581636 A CN 110581636A CN 201910954991 A CN201910954991 A CN 201910954991A CN 110581636 A CN110581636 A CN 110581636A
- Authority
- CN
- China
- Prior art keywords
- membrane switch
- frequency conversion
- conversion cabinet
- indicator light
- cabinet body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 57
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012549 training Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 244000088415 Raphanus sativus Species 0.000 description 1
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 235000012015 potatoes Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a membrane switch controlled frequency conversion cabinet, which comprises a frequency conversion cabinet body, wherein the frequency conversion cabinet body comprises a cabinet body, a controller and a frequency converter, and the controller and the frequency converter are arranged in the cabinet body. The power device connected with the frequency conversion cabinet is controlled by the membrane switch, a common button switch in the prior art is replaced, the waterproof and dustproof effects are good, the service life is long, after-sale maintenance is convenient, the after-sale problem of equipment damaged by the control switch can be easily solved even if an operator without training does not need to replace the membrane switch, the pin arrangement and the flat cable are reconnected, the after-sale efficiency is greatly improved, and the after-sale cost is reduced.
Description
Technical Field
the invention relates to the technical field of variable frequency cabinets, in particular to a variable frequency cabinet controlled by a membrane switch.
Background
The frequency conversion cabinet is a control cabinet which uses a frequency converter to drive a power device. The power dragging mode popularized at present is formed due to good starting performance, speed regulation performance and energy saving effect. The high-power frequency conversion cabinet can reduce the impact of a high-power water pump/fan on a power grid and the pressure drop of a large pair to the maximum extent, and the electricity-saving effect is obvious. The frequency conversion cabinet is widely applied to various types of tap water supply systems, for example, processing equipment for agricultural and sideline products, such as cleaning equipment for agricultural products including radishes and potatoes, constant-pressure frequency conversion water supply in construction sites, water supply and drainage and irrigation equipment for farmland irrigation, constant-temperature water supply and air supply of air compressors and air conditioners, industrial automation transformation and the like.
The existing frequency conversion cabinet generally uses a plurality of independently arranged common buttons to control a power device, each control button is separately connected with an internal frequency conversion controller through a wire, and when the buttons and other components are replaced, the circuits need to be connected again, so that the maintenance efficiency of the frequency conversion cabinet is low, and the maintenance can be carried out by professional personnel; in addition, the waterproof and dustproof effects of the common button are poor, the contact point of the common button is easy to be insensitive to operation and even damaged under the condition that moisture or dust enters, and the service life is short.
Disclosure of Invention
The invention aims to at least solve the technical problems in the prior art, particularly provides a variable frequency cabinet controlled by a membrane switch, and effectively solves the problems that in the prior art, a common button is used for controlling the variable frequency cabinet, so that the waterproof and dustproof effects are poor, the contact point of the button is easy to damage, the service life is short, and the maintenance cost is high.
In order to achieve the above purpose, the present invention provides a membrane switch controlled frequency conversion cabinet, which comprises a frequency conversion cabinet body, wherein the frequency conversion cabinet body comprises a cabinet body, and a controller and a frequency converter which are arranged in the cabinet body, and is characterized in that a membrane switch is arranged on a front panel of the cabinet body, the membrane switch is connected with a signal input end of the controller through a contact pin flat cable, a signal output end of the controller is connected with a signal input end of the frequency converter, and the membrane switch is used for receiving an input signal to control a working state of a power device connected with the signal output end of the frequency converter.
The power device connected with the frequency conversion cabinet is controlled by the membrane switch, a common button switch in the prior art is replaced, the waterproof and dustproof effects are good, the service life is long, after-sale maintenance is convenient, the after-sale problem of equipment damaged by the control switch can be easily solved even if an operator without training does not need to replace the membrane switch, the pin arrangement and the flat cable are reconnected, the after-sale efficiency is greatly improved, and the after-sale cost is reduced.
Preferably, the power device is a water pump or a fan.
Preferably, the membrane switch is provided with a forward rotation starting key, a reverse rotation starting key and a stopping key. Control signals are respectively input through a forward rotation starting key, a reverse rotation starting key and a stopping key, the control models are transmitted to a controller, the controller sends corresponding control instructions to a frequency converter, and the frequency converter controls the forward rotation, the reverse rotation and the stopping working states of power devices such as a water pump or a fan and the like connected with the frequency converter.
Preferably, the film switch is further provided with a forward rotation indicator light, a reverse rotation indicator light and a stop indicator light correspondingly. The indication lamp is used for indicating the working state of the power device, so that an operator can know the working state of the power device in real time.
Preferably, the membrane switch comprises a lower circuit layer, an isolation layer, an upper circuit layer and a panel layer which are sequentially stacked from inside to outside. When the corresponding position of the key on the panel layer of the membrane switch is pressed, the contact of the upper circuit deforms downwards and is in contact conduction with the polar plate of the lower circuit, after the finger is loosened, the contact of the upper circuit rebounds, the circuit is disconnected, and the loop triggers a signal to be input to the controller.
Preferably, the panel layer is a sand PET resin layer. The sand PET resin has excellent mechanical property, electrical property, rigidity and hardness, the highest obdurability in thermoplastic plastics, low water absorption, excellent abrasion resistance and friction resistance and high dimensional stability, and can well protect an upper circuit layer, an isolation layer and a lower circuit layer in the sand PET resin.
Preferably, the contact pin winding displacement with lower circuit layer an organic whole sets up, the contact pin winding displacement is kept away from the one end on lower circuit layer is equipped with connecting terminal. Through with the contact pin winding displacement with circuit layer integrative setting down, effectively guarantee the reliability that membrane switch and contact pin winding displacement are connected, connecting terminal is used for being connected with the controller.
Preferably, the forward rotation indicator light, the reverse rotation indicator light and the stop indicator light are all patch LEDs, and the patch LEDs are welded on the lower circuit layer. The patch LED has small volume, high electro-optic conversion efficiency, low power consumption, good shock resistance, high reliability and low cost, and is easy to realize the small size, thin type and light weight of the membrane switch.
Preferably, transparent light-transmitting portions are disposed on the panel layer at positions corresponding to the forward rotation indicator light, the reverse rotation indicator light and the stop indicator light, and the light-transmitting portions and the panel layer are integrally formed. Through setting up transparent printing opacity portion, improve the indicating effect of pilot lamp, set up printing opacity portion and panel layer integrated into one piece, effectively guarantee membrane switch's whole waterproof and dustproof performance.
Preferably, the membrane switch is arranged on the front panel of the cabinet body through back glue adhesion. Therefore, the membrane switch is convenient to disassemble and assemble and is firm and reliable in connection.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a variable frequency cabinet controlled by a membrane switch according to a preferred embodiment of the present invention;
FIG. 2 is a schematic front view of a membrane switch of a variable frequency cabinet controlled by a membrane switch according to a preferred embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a membrane switch of a variable frequency cabinet controlled by a membrane switch in a preferred embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
in the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The invention provides a frequency conversion cabinet controlled by a membrane switch 104, as shown in fig. 1-3, which comprises a frequency conversion cabinet body 1, wherein the frequency conversion cabinet body 1 comprises a cabinet body 101, and a controller 102 and a frequency converter 103 which are arranged in the cabinet body 101, and is characterized in that the membrane switch 104 is arranged on a front panel 1011 of the cabinet body 101, the membrane switch 104 is connected with a signal input end of the controller 102 through a pin bus 105, a signal output end of the controller 102 is connected with a signal input end of the frequency converter 103, and the membrane switch 104 is used for receiving an input signal to control the working state of a power device 200 connected with the signal output end of the frequency converter 103.
According to the invention, the power device 200 connected with the frequency conversion cabinet is controlled through the membrane switch 104, a common button switch in the prior art is replaced, the waterproof and dustproof effects are good, the service life is long, the after-sale maintenance is convenient, the after-sale problem of equipment damaged by the control switch can be easily solved even if an untrained operator does not need to replace the membrane switch 104, the pin arrangement and the flat cable are reconnected, the after-sale efficiency is greatly improved, and the after-sale cost is reduced.
In the present embodiment, the power device 200 is a water pump or a fan.
In the present embodiment, the membrane switch 104 is provided with a forward rotation start button 1041, a reverse rotation start button 1042, and a stop button 1043. Control signals are respectively input through the forward rotation starting button 1041, the reverse rotation starting button 1042 and the stopping button 1043, the control models are transmitted to the controller 102, the controller 102 sends corresponding control instructions to the frequency converter 103, and the frequency converter 103 controls the forward rotation, the reverse rotation and the stopping working states of the power device 200 such as a water pump or a fan connected with the frequency converter 103.
In the present embodiment, the membrane switch 104 is further provided with a forward rotation indicator lamp 1044, a reverse rotation indicator lamp 1045, and a stop indicator lamp 1046. The indication of the working state of the power device 200 is carried out through the indicator lamp, so that an operator can know the working state of the power device 200 in real time conveniently.
In this embodiment, the thin film switch 104 includes a lower circuit layer 1047, an isolation layer 1048, an upper circuit layer 1049, and a panel layer 1040 stacked in this order from inside to outside. When the corresponding position of the key on the panel layer 1040 of the membrane switch 104 is pressed, the contact of the upper circuit is deformed downwards and is in contact conduction with the polar plate of the lower circuit, after the finger is released, the contact of the upper circuit rebounds, the circuit is disconnected, and the circuit triggers a signal to be input to the controller 102.
In the present embodiment, the panel layer 1040 is a sand-faced PET polyester resin layer. The sand-surface PET resin has excellent mechanical property, electrical property, rigidity and hardness, the highest toughness in thermoplastic plastics, low water absorption, excellent abrasion resistance and friction resistance and high dimensional stability, and can well protect an upper circuit layer 1049, an isolation layer 1048 and a lower circuit layer 1047 in the sand-surface PET resin.
In this embodiment, the pin bus 105 is integrally provided with the lower circuit layer 1047, and the connection terminal 1051 is provided at one end of the pin bus 105 away from the lower circuit layer 1047. By integrally arranging the pin bus 105 and the lower circuit layer 1047, the reliability of the connection between the membrane switch 104 and the pin bus 105 is effectively ensured, and the connection terminal 1051 is used for being connected with the controller 102.
In this embodiment, the forward rotation indicator lamp 1044, the reverse rotation indicator lamp 1045, and the stop indicator lamp 1046 are all chip LEDs, and the chip LEDs are welded to the lower circuit layer 1047. The patch LED has a small volume, high electro-optical conversion efficiency, low power consumption, good shock resistance, high reliability, low cost, and is easy to realize the small, thin, and light weight of the membrane switch 104.
In the present embodiment, transparent light-transmitting portions 10401 are provided on the panel layer 1040 at positions corresponding to the forward rotation indicator lamp 1044, the reverse rotation indicator lamp 1045, and the stop indicator lamp 1046, and the light-transmitting portions 10401 are provided integrally with the panel layer 1040. Through setting up transparent printing opacity portion 10401, improve the indicating effect of pilot lamp, set up printing opacity portion 10401 and panel layer 1040 integrated into one piece, effectively guarantee the whole waterproof and dustproof performance of membrane switch 104.
In the present embodiment, the membrane switch 104 is attached to the front panel 1011 of the cabinet 101 by a back adhesive. Thus, the membrane switch 104 is convenient to disassemble and assemble and is firm and reliable in connection.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a membrane switch control's frequency conversion cabinet, includes the frequency conversion cabinet body, the frequency conversion cabinet body include the cabinet body with set up in internal controller and the converter of cabinet, its characterized in that, be provided with membrane switch on the front panel of the cabinet body, membrane switch with the signal input part of controller passes through the contact pin winding displacement and connects, the signal output part of controller with the signal input part of converter is connected, membrane switch be used for receiving input signal control with the operating condition of the power device that the signal output part of converter is connected.
2. The membrane switch controlled frequency conversion cabinet according to claim 1, wherein the power device is a water pump or a fan.
3. The membrane switch controlled frequency conversion cabinet according to claim 2, wherein the membrane switch is provided with a forward rotation start button, a reverse rotation start button and a stop button.
4. The membrane switch controlled frequency conversion cabinet according to claim 3, wherein the membrane switch is further provided with a forward rotation indicator light, a reverse rotation indicator light and a stop indicator light.
5. The membrane switch controlled frequency conversion cabinet according to claim 4, wherein the membrane switch comprises a lower circuit layer, an isolation layer, an upper circuit layer and a panel layer which are sequentially stacked from inside to outside.
6. The membrane switch controlled frequency conversion cabinet according to claim 5, wherein the panel layer is a sand PET resin layer.
7. The membrane switch controlled frequency conversion cabinet according to claim 5, wherein the pin flat cable is integrated with the lower circuit layer, and a connection terminal is disposed at an end of the pin flat cable away from the lower circuit layer.
8. The membrane switch controlled frequency conversion cabinet according to claim 5, wherein the forward rotation indicator light, the reverse rotation indicator light and the stop indicator light are all patch LEDs, and the patch LEDs are welded on the lower circuit layer.
9. The membrane switch controlled variable frequency cabinet according to claim 8, wherein the panel layer is provided with transparent light-transmitting portions at positions corresponding to the forward rotation indicator light, the reverse rotation indicator light and the stop indicator light, and the light-transmitting portions are integrally formed with the panel layer.
10. The membrane switch controlled frequency conversion cabinet according to any one of claims 1 to 9, wherein the membrane switch is adhered to the front panel of the cabinet body through a back adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954991.XA CN110581636A (en) | 2019-10-09 | 2019-10-09 | Frequency conversion cabinet controlled by membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954991.XA CN110581636A (en) | 2019-10-09 | 2019-10-09 | Frequency conversion cabinet controlled by membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110581636A true CN110581636A (en) | 2019-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910954991.XA Pending CN110581636A (en) | 2019-10-09 | 2019-10-09 | Frequency conversion cabinet controlled by membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110581636A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202003880U (en) * | 2011-02-22 | 2011-10-05 | 蒋弢 | Switching device with membrane switch |
| CN206922637U (en) * | 2017-05-24 | 2018-01-23 | 李夏 | A kind of safety-type frequency converter control cabinet |
| CN109501997A (en) * | 2018-07-18 | 2019-03-22 | 上海锐机电有限公司 | Host cooling sea water pump frequency-changing control system |
| CN210297538U (en) * | 2019-10-09 | 2020-04-10 | 荆州市茂源节能机电科技有限公司 | Frequency conversion cabinet controlled by membrane switch |
-
2019
- 2019-10-09 CN CN201910954991.XA patent/CN110581636A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202003880U (en) * | 2011-02-22 | 2011-10-05 | 蒋弢 | Switching device with membrane switch |
| CN206922637U (en) * | 2017-05-24 | 2018-01-23 | 李夏 | A kind of safety-type frequency converter control cabinet |
| CN109501997A (en) * | 2018-07-18 | 2019-03-22 | 上海锐机电有限公司 | Host cooling sea water pump frequency-changing control system |
| CN210297538U (en) * | 2019-10-09 | 2020-04-10 | 荆州市茂源节能机电科技有限公司 | Frequency conversion cabinet controlled by membrane switch |
Non-Patent Citations (2)
| Title |
|---|
| 张正牛，杨国胜: ""薄膜开关的设计与应用"", 《电测与仪表》, 30 April 1992 (1992-04-30), pages 31 - 34 * |
| 张正牛，杨国胜: "《电测与仪表》", "薄膜开关的设计与应用", 30 April 1992 (1992-04-30), pages 31 - 34 * |
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Country or region after: China Address after: 434000, Building 2, Jingzhou Tianlong Chemical Equipment Co., Ltd., No. 2 Xinhua Road, United Street, Economic and Technological Development Zone, Jingzhou City, Hubei Province (self declared) Applicant after: Maoyuan Electromechanical (Hubei) Co.,Ltd. Address before: 434000, 2nd Floor, Hongmen Road, Shashi District, Jingzhou City, Hubei Province Applicant before: JINZHOU MAOYUAN ENERGY-SACING DYNAMO-ELECTRIC TECHNOLOGY Co.,Ltd. Country or region before: China |