CN206648401U - Moisturizing control system is heated in air-cooled frost-free refrigerator frosting defrost - Google Patents
Moisturizing control system is heated in air-cooled frost-free refrigerator frosting defrost Download PDFInfo
- Publication number
- CN206648401U CN206648401U CN201720388025.2U CN201720388025U CN206648401U CN 206648401 U CN206648401 U CN 206648401U CN 201720388025 U CN201720388025 U CN 201720388025U CN 206648401 U CN206648401 U CN 206648401U
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- China
- Prior art keywords
- heater
- evaporator
- refrigerator
- temperature
- defrost
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of air-cooled frost-free refrigerator frosting defrost heating moisturizing control system, including refrigerator body；Control panel, evaporator, fan, electric heater are provided with refrigerator body；Control panel is provided with single-chip microcomputer；Evaporator is finned evaporator；Temperature Humidity Sensor and defrost temperature controller are provided with evaporator；The temperature sensor of monitoring refrigerator use environment temperature is additionally provided with refrigerator body；Electric heater includes heater one and heater two；Heater one is arranged on the top of the upper tube row of evaporator；Heater two is arranged on the lower section of the down tube row of evaporator；The power of heater one is more than the power of heater two；Control panel is provided with positive and negative rotation circuit and power control circuit；Fan is positive and negative rotary fan；Temperature Humidity Sensor, defrost temperature controller, temperature sensor, heater one, heater two, fan are connected with control panel respectively.Using above-mentioned control system, the accurate control to refrigerator heating moisturizing is realized, reaches frostless and energy-conservation target.
Description
Technical field
It the utility model is related to the technical field of air-cooled frost-free refrigerator control, more particularly to a kind of air-cooled frost-free refrigerator frosting
Moisturizing control system is heated in defrost.
Background technology
Air-cooled frost-free refrigerator is also known as indirect-cooling refrigerator, is circulated by fan forced convection by refrigerating chamber, refrigerating chamber
Warm and humid air and evaporator carry out heat exchange after, be converted into cold dry air and send refrigerating chamber and refrigerating chamber back to realize the system of refrigerator
Cold function.
During heat exchange is carried out, the moisture that food evaporates in refrigerator is taken away and frozen when passing through evaporator by cold wind
Tie and form frost layer in the surface of evaporator, frost adds the heat conduction heat between cold wall face and air in the deposition of evaporator surface
Resistance, hinders heat-transfer effect.Blocking action caused by the growth of frost layer considerably increases the resistance of air stream pervaporation device simultaneously,
Cause air flow rate to decline in the evaporator with fans drive, the heat exchange amount of evaporator is greatly reduced.Research shows, phase
Bigger to humidity, evaporator surface frost thickness increase is faster, and the ventilation area at evaporator is easier to be blocked.
At present, in order to ensure the refrigerating function of frost-free refrigerator, the defrost rule of frostless wind cooling refrigerator is mostly the fixed cycle
Defrost, and defrost work is started using a timer, if refrigerator frequently uses and in severe work when refrigerator product designs
The situation of condition operation, and the setting of defrost cycle is shorter, then refrigerator defrost can be caused frequent, be unfavorable for saving.If by defrost
Cycle setting is long, then can cause occur the problem of evaporator ice blocks up and causes refrigeration for refrigerator to fail in actual use.
Utility model content
To solve the problems, such as that present technology is present, the utility model provides a kind of air-cooled frost-free refrigerator frosting defrost heating and protected
Wet control system.
To achieve the above object, the technical solution adopted in the utility model is：A kind of air-cooled frost-free refrigerator frosting defrost adds
Hot moisturizing control system, including refrigerator body；Control panel, evaporator, fan, electric heater are provided with refrigerator body；Control panel
It is provided with single-chip microcomputer；Evaporator is finned evaporator；Temperature Humidity Sensor and defrost temperature controller are provided with evaporator；Refrigerator sheet
The temperature sensor of monitoring refrigerator use environment temperature is additionally provided with body；Electric heater includes heater one and heater two；Add
Hot device one is arranged on the top of the upper tube row of evaporator；Heater two is arranged on the lower section of the down tube row of evaporator；Heater one
Power be more than heater two power；Control panel is provided with positive and negative rotation circuit and power control circuit；The fan of refrigerating chamber is
Positive and negative rotary fan；Temperature Humidity Sensor, defrost temperature controller, temperature sensor, heater one, heater two, fan respectively with control
Making sheet is controlled after being connected by single-chip microcomputer.
After the technical solution of the utility model, evaporator inlet-outlet ventilating air is monitored by Temperature Humidity Sensor
Temperature and humidity value starts defrost；After defrost starts, because " upper dredge under close " distribution is presented in frost layer, using heater one and heating
The electric heater that 2 two groups of power of device do not wait discharges into row defrosting raising defrosting efficiency to the upper, lower tube of finned evaporator respectively.
Control panel is provided with positive and negative rotation circuit, and fan is that positive and negative rotary fan can carry out the pre-heat treatment using refrigerating chamber return air to frost layer,
Solve defrosting process and cartonning is mainly entered by substantial amounts of heat during the electric heater consumption in operation electric energy that defrosts, and defrosting
In vivo cause next time freeze during refrigerator run time increase to influence power consumption the problem of；Reduce defrosting process
The electric quantity consumption of middle electric heater.The phenomenon being gradually reduced based on heat utilization ratio during defrosting, control panel are provided with power
Control circuit allows the power of electric heater during defrosting to use the operational mode of from low to high, the experimental verification mould
The proportion that formula can account for the energy consumption that defrosts total energy consumption reduces 40% or so, effectively reduces defrosting process energy consumption and reduces box temperature and returns
Rise.Using above-mentioned control system, the accurate control to refrigerator heating moisturizing is realized, reaches frostless and energy-conservation target.
Brief description of the drawings
Fig. 1 is the control block diagram of air-cooled frost-free refrigerator frosting defrost heating moisturizing control system.
Embodiment
The preferable technical scheme of the utility model is further elaborated below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of air-cooled frost-free refrigerator frosting defrost heating moisturizing control system, including refrigerator body；Refrigerator
Control panel 2, evaporator 3, fan 4, electric heater are provided with body 1；Control panel is provided with single-chip microcomputer 5；It is characterized in that：Evaporation
Device is finned evaporator；Temperature Humidity Sensor 6 and defrost temperature controller 7 are provided with evaporator；Monitoring is additionally provided with refrigerator body
The temperature sensor 8 of refrigerator use environment temperature；Electric heater includes heater 1 and heater 2 10；Heater one is set
In the top that the upper tube of evaporator is arranged；Heater two is arranged on the lower section of the down tube row of evaporator；The power of heater one is more than
The power of heater two；Control panel is provided with positive and negative rotation circuit and power control circuit；The fan of refrigerating chamber is positive and negative rotary fan；
Temperature Humidity Sensor, defrost temperature controller, temperature sensor, heater one, heater two, fan be connected respectively with control panel after by
Single-chip microcomputer controls.
The operation principle of the technical program：It is adaptive defrost that heater set by this control system, which forces defrost, is led to
Cross monitoring refrigerator use environment temperature, the available machine time of refrigerator, the operation ratio of refrigerator, the opening time and refrigerating evaporator of refrigerator
The parameter such as evaporating temperature change, then according to default control logic adjust automatically defrost cycle (default control logic
Belong to prior art, be not belonging to the protection content of the technical program), control both ensure that ice into the point of penetration of defrost flow
Reliability when case is run under high utilization rate or harsh environments, refrigerator is realized again and realizes energy consumption most in low utilization rate
It is excellent, so as to reach the purpose of energy-saving and emission-reduction.
For embodiment of above only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with this skill
The people of art understands content of the present utility model and is simultaneously carried out, and can not limit the scope of protection of the utility model with this, all
The equivalent change or modification done according to the utility model Spirit Essence, it should all cover in the scope of protection of the utility model.
Claims (4)
1. a kind of air-cooled frost-free refrigerator frosting defrost heating moisturizing control system, including refrigerator body；Control is provided with refrigerator body
Making sheet, evaporator, fan, electric heater；Control panel is provided with single-chip microcomputer；It is characterized in that：Evaporator is finned evaporator；
Temperature Humidity Sensor and defrost temperature controller are provided with evaporator；The temperature of monitoring refrigerator use environment temperature is additionally provided with refrigerator body
Spend sensor；Electric heater includes heater one and heater two；Heater one is arranged on the top of the upper tube row of evaporator；Add
Hot device two is arranged on the lower section of the down tube row of evaporator；The power of heater one is more than the power of heater two；Set on control panel
There are positive and negative rotation circuit and power control circuit；The fan of refrigerating chamber is positive and negative rotary fan；Temperature Humidity Sensor, defrost temperature controller,
Temperature sensor, heater one, heater two, fan are controlled after being connected respectively with control panel by single-chip microcomputer.
2. air-cooled frost-free refrigerator frosting defrost heating moisturizing control system according to claim 1, it is characterised in that：Heating
Device one and heater two are steel pipe radiation-convection type heater.
3. air-cooled frost-free refrigerator frosting defrost heating moisturizing control system according to claim 2, it is characterised in that：Also set
Having prevents the temperature fuse of electric heater continuous heating；Temperature fuse is arranged at evaporator；Temperature fuse and control
Plate is connected to be controlled by single-chip microcomputer.
4. air-cooled frost-free refrigerator frosting defrost heating moisturizing control system according to claim 2, it is characterised in that：Also set
Having prevents the protection circuit of electric heater continuous heating；Protection circuit is arranged in single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720388025.2U CN206648401U (en) | 2017-04-13 | 2017-04-13 | Moisturizing control system is heated in air-cooled frost-free refrigerator frosting defrost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720388025.2U CN206648401U (en) | 2017-04-13 | 2017-04-13 | Moisturizing control system is heated in air-cooled frost-free refrigerator frosting defrost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206648401U true CN206648401U (en) | 2017-11-17 |
Family
ID=60275259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720388025.2U Expired - Fee Related CN206648401U (en) | 2017-04-13 | 2017-04-13 | Moisturizing control system is heated in air-cooled frost-free refrigerator frosting defrost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206648401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812051A (en) * | 2022-05-25 | 2022-07-29 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method of evaporator thereof |
| CN115751823A (en) * | 2022-12-22 | 2023-03-07 | 珠海格力电器股份有限公司 | Anti-condensation system of air return pipe and refrigerator |
-
2017
- 2017-04-13 CN CN201720388025.2U patent/CN206648401U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812051A (en) * | 2022-05-25 | 2022-07-29 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method of evaporator thereof |
| CN115751823A (en) * | 2022-12-22 | 2023-03-07 | 珠海格力电器股份有限公司 | Anti-condensation system of air return pipe and refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20180413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |