CN105744808A - Compressor electrical box of water chilling unit and control circuit for compressor electrical box and screw-type water chilling unit - Google Patents
Compressor electrical box of water chilling unit and control circuit for compressor electrical box and screw-type water chilling unit Download PDFInfo
- Publication number
- CN105744808A CN105744808A CN201610240444.1A CN201610240444A CN105744808A CN 105744808 A CN105744808 A CN 105744808A CN 201610240444 A CN201610240444 A CN 201610240444A CN 105744808 A CN105744808 A CN 105744808A
- Authority
- CN
- China
- Prior art keywords
- water chilling
- electrical appliance
- chilling units
- handpiece water
- compressor
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000010438 heat treatment Methods 0.000 claims abstract description 101
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims description 11
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000007669 thermal treatment Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 abstract description 19
- 230000005494 condensation Effects 0.000 abstract description 19
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
Abstract
The invention discloses a compressor electrical box of a water chilling unit and a control circuit for the compressor electrical box and a screw-type water chilling unit. The control circuit comprises a self-limiting heating tape and a water chilling unit main board, wherein the self-limiting heating tape is arranged in the compressor electrical box of the water chilling unit, is connected with a main contactor of a compressor of the water chilling unit and is used for heating the inside the electrical box of the water chilling unit when the compressor is electrified; and the water chilling unit main board is electrically connected with the self-limiting heating tape and is used for controlling the self-limiting heating tape to stop heating when the self-limiting heating tape heats the electrical box to a threshold temperature. According to the compressor electrical box, the problems that the compressor electrical box of the water chilling unit in the prior art generates the condensation phenomenon, an electrical potential safety hazard exists and a metal part of the compressor is corroded are solved, the safety of electrical equipment is improved and the service lifetime of the electrical equipment is prolonged.
Description
Technical field
The present invention relates to handpiece Water Chilling Units technical field, in particular to a kind of handpiece Water Chilling Units compressor electrical appliance kit and control circuit, screw-type water chiller.
Background technology
When the temperature of object is lower than the dew point temperature of humid air, body surface arises that dew condensation phenomenon.
The electrical appliance kit of the helical-lobe compressor of screw-type water chiller is under nominal condition (GB-T18430.1-2007 vapor-compression cycle handpiece Water Chilling Units), it may appear that dew condensation phenomenon.Being there is electrical safety hidden danger by condensation in electrical appliance kit internal wiring, also the metalwork of compressor can be caused corrosion.Due in electrical appliance kit cannot paste heat-preserving sponge, the method for existing process condensation is, in the least significant end perforate of electrical appliance kit, drains condensation water in time, to lower the harm that condensation water causes.But existing processing mode is only discharged by condensation, it is achieved reduce the harm that condensation water causes, but thoroughly eliminate the above-mentioned harm that condensation brings.
There will be dew condensation phenomenon for the compressor electrical appliance kit of handpiece Water Chilling Units in correlation technique, there is electrical safety hidden danger, metalwork to compressor causes the problem of corrosion, not yet propose at present to efficiently solve scheme.
Summary of the invention
The invention provides a kind of handpiece Water Chilling Units compressor electrical appliance kit and control circuit, screw-type water chiller, compressor electrical appliance kit at least to solve handpiece Water Chilling Units in prior art there will be dew condensation phenomenon, there is electrical safety hidden danger, problem that metalwork to compressor causes corrosion.
For solving above-mentioned technical problem, an aspect according to disclosure embodiment, the invention provides a kind of handpiece Water Chilling Units compressor electrical appliance kit control circuit, this circuit includes: self-limiting heating cable, it is arranged in the compressor electrical appliance kit of handpiece Water Chilling Units, and be connected with the compressor main contactor of handpiece Water Chilling Units, for being heated in handpiece Water Chilling Units electrical appliance kit when compressor obtains electric；Handpiece Water Chilling Units mainboard, electrically connects with self-limiting heating cable, stops heating for controlling self-limiting heating cable when self-limiting heating cable heating is to threshold temperature.
Further, self-limiting heating cable includes: heating tape and temperature limiter, and wherein, the first end of heating tape is connected with power supply, and the second end of heating tape is connected with handpiece Water Chilling Units mainboard the first end；Temperature limiter is connected with handpiece Water Chilling Units mainboard the second end.
Further, this circuit also includes: the first catalyst, and the first catalyst input is connected with the first end of handpiece Water Chilling Units mainboard, and the normally-closed contact of the first catalyst is connected with the second end of heating tape.
Another aspect according to disclosure embodiment, it is provided that a kind of handpiece Water Chilling Units compressor electrical appliance kit, it is characterised in that including the handpiece Water Chilling Units compressor electrical appliance kit control circuit of above-mentioned record, wherein, self-limiting heating cable is laid on the sheet metal component of compressor electrical appliance kit.
Further, self-limiting heating cable lays around compressor electrical appliance kit internally-powered line binding post, forms the thermal treatment zone.
Further, generally circular in shape, the rectangle of the thermal treatment zone or round rectangle.
Further, self-limiting heating cable includes terminal connection box and middle-end rosette, and wherein, terminal connection box is arranged at the end of heating tape, for closing one end of heating tape；Middle-end rosette is arranged on heating tape, and temperature limiter is arranged in middle-end rosette, and is drawn the terminals of temperature limiter by the two ends of middle-end rosette.
Further, above-mentioned handpiece Water Chilling Units compressor electrical appliance kit also includes: fixing device, for self-limiting heating cable is fixed to the sheet metal component of compressor electrical appliance kit.
Further, fixing device includes: pipe clamp and tapping screw, and the size of pipe clamp is corresponding with heating tape, is fixed on the sheet metal component of compressor electrical appliance kit by self-limiting heating cable by pipe clamp and tapping screw.
Another aspect according to disclosure embodiment, it is provided that a kind of screw-type water chiller, it includes the handpiece Water Chilling Units compressor electrical appliance kit of above-mentioned record.
In the present invention, in handpiece Water Chilling Units compressor installation, self-limiting heating cable is set, self-limiting heating cable comprise can control realization heating heating tape and restriction heating temp temperature limiter, heating tape is laid in handpiece Water Chilling Units compressor electrical appliance kit, to offset the cryogenic heat transfer of suction end, and then improve its surface temperature, eliminate condensation problem, the compressor electrical appliance kit efficiently solving handpiece Water Chilling Units in prior art there will be dew condensation phenomenon, there is electrical safety hidden danger, the problem that the metalwork of compressor is caused corrosion, electrical equipment safety and service life are provided.
Accompanying drawing explanation
Fig. 1 is a kind of optional structured flowchart of the handpiece Water Chilling Units compressor electrical appliance kit control circuit of the embodiment of the present invention；
Fig. 2 is the another kind of optional structured flowchart of the handpiece Water Chilling Units compressor electrical appliance kit control circuit of the embodiment of the present invention；
Fig. 3 is the electrical schematic diagram of the handpiece Water Chilling Units compressor electrical appliance kit control circuit of the embodiment of the present invention；
Fig. 4 is the structural representation of the handpiece Water Chilling Units compressor electrical appliance kit of the embodiment of the present invention；
Fig. 5 is the close-up schematic view of the handpiece Water Chilling Units compressor electrical appliance kit of the embodiment of the present invention；
Fig. 6 is a kind of structural representation of the self-limiting heating cable of the embodiment of the present invention；And
Fig. 7 is the structural representation of the middle-end rosette of the self-limiting heating cable of the embodiment of the present invention.
Detailed description of the invention
Here in detail exemplary embodiment being illustrated, its example representation is in the accompanying drawings.When as explained below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Embodiment described in following exemplary embodiment does not represent all embodiments consistent with the present invention.On the contrary, they only with in appended claims describe in detail, the present invention some in the example of consistent apparatus and method.
Embodiment 1
Below in conjunction with accompanying drawing, handpiece Water Chilling Units compressor electrical appliance kit control circuit provided by the invention is illustrated.
Handpiece Water Chilling Units compressor electrical appliance kit control circuit provided by the invention can be applied in handpiece Water Chilling Units compressor electrical appliance kit, such as, can be arranged in screw-type water chiller compressor electrical appliance kit, Fig. 1 illustrates the one preferably structured flowchart of this handpiece Water Chilling Units compressor electrical appliance kit control circuit, as shown in Figure 1, this handpiece Water Chilling Units compressor electrical appliance kit control circuit can include self-limiting heating cable 12 and handpiece Water Chilling Units mainboard 14 two parts, wherein, self-limiting heating cable 12 is arranged in the compressor electrical appliance kit of handpiece Water Chilling Units, and be connected with the compressor main contactor of handpiece Water Chilling Units, for being heated in handpiece Water Chilling Units electrical appliance kit when compressor obtains electric.Such as, self-limiting heating cable 12 be connected to compressor main contactor normally opened contact connect, compressor obtain electric after, normally opened contact close, then heating tape also electrical heating.Handpiece Water Chilling Units mainboard 14, electrically connects with self-limiting heating cable 12, stops heating for controlling self-limiting heating cable when self-limiting heating cable 12 heats to threshold temperature.
When implementing, self-limiting heating cable 12 includes: heating tape 122 and temperature limiter 124 two parts, wherein, the first end of heating tape 12 is connected with power supply 20 (such as 220V alternating current), and the second end of heating tape 122 is connected with handpiece Water Chilling Units mainboard 14 first end；Temperature limiter 124 is connected with handpiece Water Chilling Units mainboard 14 second end.
In order to stop heating after realizing arrival temperature limiter temperature threshold, attachment structure block diagram as shown in Figure 2, this circuit also includes: the first catalyst 16, first catalyst 16 input is connected with the first end of handpiece Water Chilling Units mainboard 14, and the normally-closed contact of the first catalyst 16 is connected with the second end of heating tape 122.Concrete electrical schematic diagram is referring to shown in accompanying drawing 3.
The control principle of above-mentioned control circuit is as follows:
Heating tape connects 220V power supply, and chain with compressor main contactor, when compressor obtain electric after, heating tape also can obtain electrical heating, eliminates in electrical appliance kit, by heating, the dew condensation phenomenon being likely to occur.When in compressor electrical appliance kit, temperature reaches temperature threshold (such as 45 DEG C), SAT temperature limiter can give handpiece Water Chilling Units master control input for pointing out the signal of disconnection, mainboard can send and control signal to the first catalyst KM1, make the first catalyst KM1 auxiliary contactor action, the normally closed main contactor of normally closed KM1 connected with heating tape disconnects, heating tape stops heating, it is to avoid the circuit impact that high-temperature heating brings.
Can be seen that from the above description, the present invention arranges self-limiting heating cable in handpiece Water Chilling Units compressor installation, self-limiting heating cable comprise can control realization heating heating tape and restriction heating temp temperature limiter, heating tape is laid in handpiece Water Chilling Units compressor electrical appliance kit, to offset the cryogenic heat transfer of suction end, and then improve its surface temperature, eliminate condensation problem, the compressor electrical appliance kit efficiently solving handpiece Water Chilling Units in prior art there will be dew condensation phenomenon, there is electrical safety hidden danger, the problem that the metalwork of compressor is caused corrosion, electrical equipment safety and service life are provided.
Embodiment 2
Based on the handpiece Water Chilling Units compressor electrical appliance kit control circuit provided in above-described embodiment 1, optional embodiment 2 of the present invention additionally provides a kind of handpiece Water Chilling Units compressor electrical appliance kit, described in this handpiece Water Chilling Units compressor electrical appliance kit electrical principle such as embodiment 1, repeat no more herein.When specifically arranging, self-limiting heating cable is laid on the sheet metal component of compressor electrical appliance kit.
Fig. 4 is the compressor configuration schematic diagram comprising this handpiece Water Chilling Units compressor electrical appliance kit, and Fig. 5 is this handpiece Water Chilling Units compressor electrical appliance kit position partial enlarged drawing, and Fig. 6 illustrates a kind of structural representation of self-limiting heating cable, is described below in conjunction with Fig. 4, Fig. 5 and Fig. 6.
As shown in Figure 4 and Figure 5, self-limiting heating cable lays around compressor electrical appliance kit internally-powered line binding post, forms the thermal treatment zone, referring to round rectangle place in Fig. 4 and Fig. 5.Preferably, the shape of the thermal treatment zone can also be circular or rectangle.Additionally, handpiece Water Chilling Units compressor electrical appliance kit also includes fixing device 10, for self-limiting heating cable being fixed to the sheet metal component of compressor electrical appliance kit.Wherein it is preferred to, the fixing device in Fig. 4 and Fig. 5 is the fixing device adopting pipe clamp and tapping screw mode to be formed, and the size of pipe clamp is corresponding with heating tape, is fixed on the sheet metal component of compressor electrical appliance kit by self-limiting heating cable by pipe clamp and tapping screw.
Fig. 6 illustrates a kind of structural representation of self-limiting heating cable, self-limiting heating cable includes terminal connection box 20 and middle-end rosette 30, (also can referring to shown in Fig. 4 and Fig. 5) wherein, terminal connection box 20 be arranged at the end of heating tape, for closing one end of heating tape；Middle-end rosette 30 is arranged on heating tape.Temperature limiter 124 is arranged in middle-end rosette, and is drawn the terminals of temperature limiter by the two ends of middle-end rosette.Specifically can be shown in Figure 7.
Embodiment 3
Based on the handpiece Water Chilling Units compressor electrical appliance kit control circuit provided in above-described embodiment 1, and the handpiece Water Chilling Units compressor electrical appliance kit provided in embodiment 2, optional embodiment 3 of the present invention additionally provides a kind of screw-type water chiller, it handpiece Water Chilling Units compressor electrical appliance kit including above-mentioned record and control circuit thereof, repeat no more herein.
Can be seen that from the above description, the present invention arranges self-limiting heating cable in handpiece Water Chilling Units compressor installation, self-limiting heating cable comprise can control realization heating heating tape and restriction heating temp temperature limiter, heating tape is laid in handpiece Water Chilling Units compressor electrical appliance kit, to offset the cryogenic heat transfer of suction end, and then improve its surface temperature, eliminate condensation problem, the compressor electrical appliance kit efficiently solving handpiece Water Chilling Units in prior art there will be dew condensation phenomenon, there is electrical safety hidden danger, the problem that the metalwork of compressor is caused corrosion, electrical equipment safety and service life are provided.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to other embodiment of the present invention.The application is intended to any modification of the present invention, purposes or adaptations, and these modification, purposes or adaptations are followed the general principle of the present invention and include known general knowledge in the art or the conventional techniques means that the present invention does not invent.Description and embodiments is considered only as exemplary, and the true scope of the present invention and spirit are pointed out by claim below.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and various amendment and change can carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (10)
1. a handpiece Water Chilling Units compressor electrical appliance kit control circuit, it is characterised in that including:
Self-limiting heating cable, is arranged in the compressor electrical appliance kit of handpiece Water Chilling Units, and is connected with the compressor main contactor of described handpiece Water Chilling Units, for being heated in described handpiece Water Chilling Units electrical appliance kit when described compressor obtains electric；
Handpiece Water Chilling Units mainboard, electrically connects with described self-limiting heating cable, stops heating for controlling described self-limiting heating cable when the heating of described self-limiting heating cable is to threshold temperature.
2. circuit according to claim 1, it is characterised in that described self-limiting heating cable includes: heating tape and temperature limiter, wherein,
First end of described heating tape is connected with power supply, and the second end of described heating tape is connected with described handpiece Water Chilling Units mainboard the first end；
Described temperature limiter is connected with described handpiece Water Chilling Units mainboard the second end.
3. circuit according to claim 2, it is characterised in that also include:
First catalyst, described first catalyst input is connected with the first end of described handpiece Water Chilling Units mainboard, and the normally-closed contact of described first catalyst is connected with the second end of described heating tape.
4. a handpiece Water Chilling Units compressor electrical appliance kit, it is characterised in that including the handpiece Water Chilling Units compressor electrical appliance kit control circuit as described in claim 1-3, wherein, described self-limiting heating cable is laid on the sheet metal component of described compressor electrical appliance kit.
5. handpiece Water Chilling Units compressor electrical appliance kit according to claim 4, it is characterised in that described self-limiting heating cable lays around described compressor electrical appliance kit internally-powered line binding post, forms the thermal treatment zone.
6. handpiece Water Chilling Units compressor electrical appliance kit according to claim 5, it is characterised in that generally circular in shape, the rectangle of the described thermal treatment zone or round rectangle.
7. handpiece Water Chilling Units compressor electrical appliance kit according to claim 4, it is characterised in that
Described self-limiting heating cable includes terminal connection box and middle-end rosette, wherein,
Described terminal connection box is arranged at the end of heating tape, for closing one end of described heating tape；
Described middle-end rosette is arranged on described heating tape, and described temperature limiter is arranged in described middle-end rosette, and is drawn the terminals of described temperature limiter by the two ends of described middle-end rosette.
8. handpiece Water Chilling Units compressor electrical appliance kit according to claim 4, it is characterised in that also include: fixing device, for being fixed to the sheet metal component of described compressor electrical appliance kit by described self-limiting heating cable.
9. handpiece Water Chilling Units compressor electrical appliance kit according to claim 8, it is characterized in that, described fixing device includes: pipe clamp and tapping screw, the size of described pipe clamp is corresponding with described heating tape, is fixed on the sheet metal component of described compressor electrical appliance kit by described self-limiting heating cable by described pipe clamp and tapping screw.
10. a screw-type water chiller, it is characterised in that including: the handpiece Water Chilling Units compressor electrical appliance kit as described in claim 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610240444.1A CN105744808A (en) | 2016-04-15 | 2016-04-15 | Compressor electrical box of water chilling unit and control circuit for compressor electrical box and screw-type water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610240444.1A CN105744808A (en) | 2016-04-15 | 2016-04-15 | Compressor electrical box of water chilling unit and control circuit for compressor electrical box and screw-type water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105744808A true CN105744808A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610240444.1A Pending CN105744808A (en) | 2016-04-15 | 2016-04-15 | Compressor electrical box of water chilling unit and control circuit for compressor electrical box and screw-type water chilling unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN105744808A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886109Y (en) * | 2006-01-09 | 2007-04-04 | 刘圣民 | Ultra-low-temperature preheater for engine |
| CN201666675U (en) * | 2009-09-30 | 2010-12-08 | 北京恩派太阳能科技有限公司 | Anti-freezing controller for pipeline of solar water heater |
| CN202444642U (en) * | 2011-12-21 | 2012-09-19 | 浙江华源电热有限公司 | Improved self-regulating heating cable |
| CN204009614U (en) * | 2014-07-03 | 2014-12-10 | 珠海格力电器股份有限公司 | Heating tape control system and air conditioner |
| CN105375086A (en) * | 2015-11-27 | 2016-03-02 | 浙江佳力科技股份有限公司 | Temperature control device for cold-chain forklift accumulator |
| CN105402965A (en) * | 2015-12-25 | 2016-03-16 | 珠海格力电器股份有限公司 | Refrigerating system and water chilling unit with refrigerating system |
| CN206042624U (en) * | 2016-04-15 | 2017-03-22 | 珠海格力电器股份有限公司 | Cooling water set compressor electrical apparatus box and control circuit , screw cooling water set thereof |
-
2016
- 2016-04-15 CN CN201610240444.1A patent/CN105744808A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886109Y (en) * | 2006-01-09 | 2007-04-04 | 刘圣民 | Ultra-low-temperature preheater for engine |
| CN201666675U (en) * | 2009-09-30 | 2010-12-08 | 北京恩派太阳能科技有限公司 | Anti-freezing controller for pipeline of solar water heater |
| CN202444642U (en) * | 2011-12-21 | 2012-09-19 | 浙江华源电热有限公司 | Improved self-regulating heating cable |
| CN204009614U (en) * | 2014-07-03 | 2014-12-10 | 珠海格力电器股份有限公司 | Heating tape control system and air conditioner |
| CN105375086A (en) * | 2015-11-27 | 2016-03-02 | 浙江佳力科技股份有限公司 | Temperature control device for cold-chain forklift accumulator |
| CN105402965A (en) * | 2015-12-25 | 2016-03-16 | 珠海格力电器股份有限公司 | Refrigerating system and water chilling unit with refrigerating system |
| CN206042624U (en) * | 2016-04-15 | 2017-03-22 | 珠海格力电器股份有限公司 | Cooling water set compressor electrical apparatus box and control circuit , screw cooling water set thereof |
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