CN205079539U - Commercialization or domestic refrigerator's temperature protection system - Google Patents
Commercialization or domestic refrigerator's temperature protection system Download PDFInfo
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- CN205079539U CN205079539U CN201520806618.7U CN201520806618U CN205079539U CN 205079539 U CN205079539 U CN 205079539U CN 201520806618 U CN201520806618 U CN 201520806618U CN 205079539 U CN205079539 U CN 205079539U
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- temperature
- temperature controller
- switching device
- master board
- refrigerating appliance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to a commercialization or domestic appliance technical field, more specifically relates to a commercialization or domestic refrigerator's temperature protection system, including the main control panel, power end, compressor and first temperature controller, the power end is connected with the main control panel's power input end, and the compressor is connected with the main control panel's control output, and the both ends of first temperature controller are connected with power end and the main control panel's power input end respectively, reaching first temperature controller when operational environment's temperature, predetermined switch on or during the break -off signal, first temperature controller switches on or breaks off. The switching on or break off of return circuit that switches on or break off control this electron temperature control system through first temperature controller to make the refrigeration utensil work under preset's temperature range. The utility model discloses can continue work when electron temperature control system breaks down, maintain refrigerating system normal operating, prevent to become invalid because of the electron control by temperature change and cause the loss for the user.
Description
Technical field
The utility model relates to commercial or home technical field of electric appliances, more specifically, relates to a kind of temperature protection system of commercial or home refrigerating appliance.
Background technology
Existing refrigerating appliance adopts electronic temperature control refrigeration modes substantially, due to the problem of the electromagnetic environment of the life problems of electronic devices and components own or use, often there is sensor fault or fault in the refrigerating appliance of electronic temperature control, this will cause refrigerating appliance to occur, and temperature controls anomaly, and then cause the article being in refrigerating state to damage because refrigeration is abnormal, bring loss to user, therefore the refrigerating appliance of existing electronic temperature control mode can not meet the requirement of user to greatest extent.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of temperature protection system of commercial or home refrigerating appliance, and this system can work on when electronic temperature control system malfunctions, prevents from causing damage to user because electronic temperature control is abnormal.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of temperature protection system of commercial or home refrigerating appliance is provided, comprise master board, power end, compressor and the first temperature controller, power end is connected with the power input of master board, compressor is connected with the control output end of master board, and the two ends of the first temperature controller are connected with the power input of power end and master board respectively; When the temperature of working environment reach that the first temperature controller presets be turned on or off temperature time, the first temperature controller is turned on or off.
In such scheme, power end, first temperature controller, master board and compressor form the loop of electronic temperature control system, when there is the fault that its own system cannot detect in electronic temperature control system, the duty of compressor will occur abnormal, the operating temperature in refrigerating appliance case is caused to change, when the operating temperature in refrigerating appliance case reach the first temperature controller preset be turned on or off temperature time, first temperature controller is turned on or off, being turned on or off of loop of this electronic temperature control system is controlled by being turned on or off of the first temperature controller, control refrigerating appliance to work in the temperature range preset.The utility model can work on when electronic temperature control system malfunctions, maintains refrigeration system and normally runs, and prevents from causing damage to user because electronic temperature control lost efficacy.
Preferably, the temperature protection system of commercial or home refrigerating appliance also comprises switching device, and the control end of described switching device is connected with the control signal output of master board, and the two ends of switching device are connected with the first temperature controller and compressor respectively; Described switching device controls the disconnection or closed of its own switch according to the status information of master board.When electronic temperature control system malfunctions and its own system detects fault time, master board can send close command to switching device, now, power end, first temperature controller, switching device and compressor form electronic loop, compressor will work on, operating temperature in refrigerating appliance case also can change, when the operating temperature in refrigerating appliance case reach the first temperature controller preset be turned on or off temperature time, first temperature controller is turned on or off, being turned on or off of this electronic loop is controlled by being turned on or off of the first temperature controller, control refrigerating appliance to work at the preset temperature, prevent from causing damage to user because electronic temperature control lost efficacy.
Preferably, the temperature protection system of commercial or home refrigerating appliance also comprises the second temperature controller, and one end of switching device is connected with described compressor by the second temperature controller; When the temperature of working environment reach that the second temperature controller presets be turned on or off temperature time, the second temperature controller is turned on or off.By arranging two temperature controllers, can avoid, because of the situation of a malfunctioning electronic temperature control system works exception caused of temperature controller, guaranteeing that electronic temperature control system can more effectively work.
Preferably, the break-off signal of described first temperature controller is the minimum temperature in the operating temperature range of master board setting.When there is the fault that its own system cannot detect in electronic temperature control system, compressor can not stop refrigeration, be provided with the operating temperature helped in refrigerating appliance case like this when reaching minimum temperature, in time electronic loop disconnected, prevent because compressor does not stop the economic loss caused of freezing.
Preferably, the break-off signal of described second temperature controller is any operative temperature in the operating temperature range of master board setting.When there is the fault that its own system cannot detect in electronic temperature control system, compressor can not stop refrigeration, be provided with the operating temperature helped in refrigerating appliance case like this when reaching the break-off signal of the second temperature controller, in time electronic loop is disconnected, prevent because compressor does not stop the economic loss caused of freezing.
Preferably, the break-off signal of described first temperature controller and the second temperature controller is all lower than conducting temperature.Arrange like this and when compressor does not stop refrigeration, electronic loop can be disconnected in time, prevent because compressor does not stop the economic loss caused of freezing.
Preferably, described master board is provided with the power module for powering to switching device.
Preferably, described switching device is closed type switching device, and when master board normally works, switching device its own switch disconnects; When master board is broken down, switching device its own switch closes.When the master board of electronic temperature control system burns out, closed type switching device closes automatically, now; electronic loop is in channel status; protecting control is carried out to refrigerating appliance, controls refrigerating appliance and work at the preset temperature, prevent from causing damage to user because electronic temperature control lost efficacy.
Preferably, described switching device is relay.
Compared with prior art, the beneficial effects of the utility model are:
The temperature protection system of a kind of commercial or home refrigerating appliance of the utility model, when breaking down appears in electronic temperature control system, can work on, and maintains refrigerating appliance and works at the preset temperature, prevents from causing damage to user because electronic temperature control lost efficacy; By arranging two temperature controllers, can avoid, because of the situation of a malfunctioning electronic temperature control system works exception caused of temperature controller, guaranteeing that electronic temperature control system can more effectively work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the equivalent circuit diagram when fault that its own system cannot detect appears in electronic temperature control system in the utility model embodiment.
Fig. 3 is equivalent circuit diagram when electronic temperature control system malfunctions and its own system detect that the master board of fault or electronic temperature control system is burned in the utility model embodiment.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is further described.Wherein, accompanying drawing only for exemplary illustration, expression be only schematic diagram, but not pictorial diagram, can not be interpreted as the restriction to this patent; In order to embodiment of the present utility model is described better, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; For a person skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
The corresponding same or analogous parts of same or analogous label in the accompanying drawing of the utility model embodiment, in description of the present utility model, it will be appreciated that, if have term " on ", D score, " left side ", orientation or the position relationship of the instruction such as " right side " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the term of position relationship is described only for exemplary illustration in accompanying drawing, the restriction to this patent can not be interpreted as, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment
The structural representation of the temperature protection system of a kind of commercial or home refrigerating appliance of the present embodiment as shown in Figure 1, comprise the first temperature controller 10, master board 21, power end, compressor 23, display circuit board 20 and external device 22, power end is connected with the power input of master board 21, compressor 23 is connected with the control output end of master board 21, the two ends of the first temperature controller 10 are connected with the power input of power end and master board 21 respectively, when the temperature of the working environment in refrigerating appliance case reach that the first temperature controller 10 presets be turned on or off temperature time, first temperature controller 10 is turned on or off, display circuit board 20 and external device 22 are all connected with master board 21.The place branch road that first temperature controller 10 place branch road and power end directly connect the power input of master board 21 is two different branch roads.Display circuit board 20 comprises display screen, and for information such as displays temperatures, external device 22 comprises temperature sensor and humidity sensor, for detected temperatures and humidity.
The operating temperature range presetting electronic temperature control system is t1 ~ t2, and the break-off signal of the first temperature controller 10 is set to t1, and the break-off signal of the first temperature controller 10 is lower than conducting temperature.Power end, the first temperature controller 10, master board 21 and compressor 23 form electronic loop, as shown in Figure 2.When the fault that the temperature sensor of electronic temperature control system occurs suddenling change resistance drift or resistance this type systematic its own system cannot detect, compressor 23 will ceaselessly freeze, in this case the temperature of refrigerating appliance just likely constantly declines, as the minimum temperature t1 that refrigerating appliance the temperature inside the box presets lower than electronic temperature control system, first temperature controller 10 will disconnect, electronic loop is made to be in off-state by the disconnection of the first temperature controller 10, prevent temperature from continuing to decline, in available protecting case, article do not damage because crossing cold; When refrigerating appliance the temperature inside the box reaches the conducting temperature of the first temperature controller 10, the first temperature controller 10, by conducting, makes electronic loop be in connection status by the conducting of the first temperature controller 10, and compressor 23 starts refrigeration.By repeating this two processes, refrigeration system can be maintained and normally run, prevent from causing damage to user because electronic temperature control lost efficacy.
In order to obtain better temperature protection effect; switching device 12 and the second temperature controller 11 is added in the temperature protection system of commercial or home refrigerating appliance; the control end of switching device 12 is connected with the control signal output of master board 21; one end of switching device 12 is connected with the first temperature controller 10, and the other end of switching device 12 is connected with compressor 23 by the second temperature controller 11.Switching device 12 controls the disconnection or closed of its own switch according to the status information of master board 21, when the temperature of the working environment in refrigerating appliance case reach that the second temperature controller 11 presets be turned on or off temperature time, the second temperature controller 11 is turned on or off.
The break-off signal of the second temperature controller 11 is lower than conducting temperature, the break-off signal of the second temperature controller 11 is higher than the break-off signal of the first temperature controller 10, the break-off signal of the second temperature controller 11 is set to t3, t1<t3<t2, the conducting temperature of the first temperature controller 10 and the second temperature controller 11 is identical.When electronic temperature control system self detects temperature sensor fault, master board 21 sends close command to switching device 12, now power end, the first temperature controller 10, switching device 12, second temperature controller 11 and compressor 23 form electronic loop, as shown in Figure 3.When electronic loop is in closure state, compressor starts refrigeration is until when refrigerating appliance the temperature inside the box reaches the break-off signal t3 of the second temperature controller 11, electronic loop is in off-state, compressor 23 stops refrigeration, when refrigerating appliance the temperature inside the box reaches the conducting temperature of the first temperature controller 10 and the second temperature controller 11, second temperature controller 11 is by conducting, and electronic loop is in connection status, and compressor 23 starts refrigeration.By repeating this two processes, refrigeration system can be maintained and normally run, prevent from causing damage to user because electronic temperature control lost efficacy.Two temperature controllers are set, can avoid, because of the situation of a malfunctioning electronic temperature control system works exception caused of temperature controller, guaranteeing that electronic temperature control system can more effectively work.
Occur that power unit circuit or low-voltage control circuit such as to burn out at the critical failure to tackle master board 21, switching device 12 can be arranged to closed type switching device, this closed type switching device is relay, and master board 21 is provided with the power module for powering for switching device 12.When there is the situation that master board 21 is burned, switching device 12 closes automatically, and now, power end, the first temperature controller 10, switching device 12, second temperature controller 11 and compressor 23 form electronic loop, as shown in Figure 3.It is identical when its concrete operation principle and electronic temperature control system self detect temperature sensor fault.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection domain that all should be included in the utility model claim.
Claims (9)
1. the temperature protection system of a commercial or home refrigerating appliance, comprise master board (21), power end and compressor (23), described power end is connected with the power input of master board (21), described compressor (23) is connected with the control output end of master board (21), it is characterized in that, also comprise the first temperature controller (10), the two ends of described first temperature controller (10) are connected with the power input of power end and master board (21) respectively; When the temperature of working environment reach that the first temperature controller (10) presets be turned on or off temperature time, the first temperature controller (10) is turned on or off.
2. the temperature protection system of commercial or home refrigerating appliance according to claim 1, it is characterized in that, also comprise switching device (12), the control end of described switching device (12) is connected with the control signal output of master board (21), and the two ends of switching device (12) are connected with the first temperature controller (10) and compressor (23) respectively; Described switching device (12) controls the disconnection or closed of its own switch according to the status information of master board (21).
3. the temperature protection system of commercial or home refrigerating appliance according to claim 2, is characterized in that, also comprises the second temperature controller (11), and one end of switching device (12) is connected with described compressor (23) by the second temperature controller (11); When the temperature of working environment reach that the second temperature controller (11) presets second be turned on or off temperature time, the second temperature controller (11) is turned on or off.
4. the temperature protection system of the commercial or home refrigerating appliance according to any one of claims 1 to 3, is characterized in that, the break-off signal of described first temperature controller (10) is the minimum temperature in the operating temperature range that sets of master board (21).
5. the temperature protection system of commercial or home refrigerating appliance according to claim 3, is characterized in that, the break-off signal of described second temperature controller (11) is any operative temperature in the operating temperature range that sets of master board (21).
6. the temperature protection system of the commercial or home refrigerating appliance according to claim 3 or 5, is characterized in that, the break-off signal of described first temperature controller (10) and the second temperature controller (11) is all lower than conducting temperature.
7. the temperature protection system of commercial or home refrigerating appliance according to claim 2, is characterized in that, described master board (21) is provided with the power module for powering for described switching device (12).
8. the temperature protection system of commercial or home refrigerating appliance according to claim 7, it is characterized in that, described switching device (12) is closed type switching device (12), and when master board (21) normally works, switching device (12) its own switch disconnects; When master board (21) is broken down, switching device (12) its own switch closes.
9. the temperature protection system of commercial or home refrigerating appliance according to claim 8, is characterized in that, described switching device (12) is relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806618.7U CN205079539U (en) | 2015-10-19 | 2015-10-19 | Commercialization or domestic refrigerator's temperature protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806618.7U CN205079539U (en) | 2015-10-19 | 2015-10-19 | Commercialization or domestic refrigerator's temperature protection system |
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| Publication Number | Publication Date |
|---|---|
| CN205079539U true CN205079539U (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520806618.7U Active CN205079539U (en) | 2015-10-19 | 2015-10-19 | Commercialization or domestic refrigerator's temperature protection system |
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| CN (1) | CN205079539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353426A (en) * | 2021-12-27 | 2022-04-15 | 广州万宝电子科技有限公司 | Temperature control device and method |
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2015
- 2015-10-19 CN CN201520806618.7U patent/CN205079539U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353426A (en) * | 2021-12-27 | 2022-04-15 | 广州万宝电子科技有限公司 | Temperature control device and method |
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| GR01 | Patent grant |