CN204227807U - With the refrigerator air extraction structure of air pressure automatic control function - Google Patents
With the refrigerator air extraction structure of air pressure automatic control function Download PDFInfo
- Publication number
- CN204227807U CN204227807U CN201420547229.2U CN201420547229U CN204227807U CN 204227807 U CN204227807 U CN 204227807U CN 201420547229 U CN201420547229 U CN 201420547229U CN 204227807 U CN204227807 U CN 204227807U
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- interface
- air
- threeway
- refrigerator
- aspiration pump
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Abstract
With a refrigerator air extraction structure for air pressure automatic control function, it is characterized in that: comprise the first threeway and the second threeway, the first threeway has first interface, the second interface and the 3rd interface, and the second threeway has the 4th interface, the 5th interface and the 6th interface; First interface is connected with the bleeding point of the first aspiration pump, and the second interface is connected with the bleeding point of the second aspiration pump; 5th interface is connected with the induction end of an air pressure control sensor, and the signal output part of air pressure control sensor is connected with the signal input part of the first aspiration pump and the second aspiration pump control circuit, and the 6th interface is connected with the inner space of refrigerator vaccum freshness box; 3rd interface and the 4th interface are socketed mutually, and the one inside in the 3rd interface and the 4th interface is provided with an inner elements of check valve, and this inner elements of check valve only allows air-flow to lead to the first threeway by the two or three to flow.The utility model structure is simple, can detect the atmospheric pressure value of refrigerator vaccum freshness box inside in real time, bleed to refrigerator vaccum freshness box.
Description
Technical field
The utility model relates to the air extraction structure of refrigerator, particularly relates to a kind of refrigerator air extraction structure with air pressure automatic control function, for the air pressure in Real-Time Monitoring refrigerator vacuum storehouse and the gas extracted in refrigerator vacuum storehouse makes its air pressure reach setting value.
Background technology
In order to enable food store the longer time, present refrigerator is much all configured with vacuum fresh-keeping system, for food provides the storage condition of hypoxemia, low bacterium.Existing vacuum fresh-keeping system mainly comprises the vacuum crisper be contained in refrigerating chamber and the draw-out device vacuumized this vacuum crisper.Authorization Notice No. is the air extractor that the Chinese utility model patent " a kind of air extractor of refrigerator vaccum freshness box " of CN202254605U discloses a kind of refrigerator vaccum freshness box, comprise one for storing the box body of food, box body has a bleeding point, described bleeding point is connected with vavuum pump through a gas channel, vavuum pump is connected with a drive motors, a check valve is had to be placed in bleeding point or gas channel, the gas flow direction of check valve points to the air inlet of vavuum pump, gas channel between check valve and vavuum pump picks out first branch road and second branch road, described first branch road is communicated with air, and first branch road be provided with a universaling electromagnetic valve, described second branch road is connected with the test side of a pressure sensor, the circuit output control signal vacuumizing space-time when needs stopping makes universaling electromagnetic valve open even open to atmosphere first branch road, now air flows into gas channel suddenly, the pressure in gas channel is made to increase suddenly, the pressure reduction at check valve two ends increases suddenly, check valve could obtain and turn off effect reliably in this state, is located at the second branch road on gas channel and pressure sensor plays mating reaction in above process.But, vacuum crisper is not positive confinement, can slowly leak gas in put procedure, and user cannot detect air pressure in vacuum crisper in real time to open vavuum pump, can only upper once open vacuum crisper close again time, vavuum pump just can task again, and pressure sensor detect be the air pressure in gas channel but not the air pressure in vacuum crisper.So, how to provide a kind of can Real-Time Monitoring vacuum crisper internal gas pressure the refrigerator air extraction structure that vacuumizes in time just becomes research topic of the present utility model.
Summary of the invention
The purpose of this utility model be to provide a kind of can Real-Time Monitoring refrigerator vaccum freshness box internal gas pressure the timely refrigerator air extraction structure to the band air pressure automatic control function that it vacuumizes.
For achieving the above object, the technical solution adopted in the utility model is: a kind of refrigerator air extraction structure with air pressure automatic control function, its innovation is: comprise the first threeway and the second threeway, first threeway has first interface, the second interface and the 3rd interface, and the second threeway has the 4th interface, the 5th interface and the 6th interface; Wherein:
Described first interface is connected with the bleeding point of the first aspiration pump, and described second interface is connected with the bleeding point of the second aspiration pump; Described 5th interface is connected with the induction end of an air pressure control sensor, the signal output part of air pressure control sensor is connected with the signal input part of described first aspiration pump and the second aspiration pump control circuit, and described 6th interface is connected with the inner space of refrigerator vaccum freshness box;
Described 3rd interface and the 4th interface are socketed mutually, and the one inside in the 3rd interface and the 4th interface is provided with an inner elements of check valve, and this inner elements of check valve only allows air-flow to lead to the first threeway by the two or three to flow.
Related content in technique scheme is explained as follows:
1, in such scheme, the one inside in described first threeway and the second threeway corresponds to described inner elements of check valve and is provided with a valve core case;
Described inner elements of check valve comprises a substrate, and the side of substrate is convexly equipped with a locating dowel, and the opposite side of substrate is convexly equipped with a choke boss;
Described valve core case corresponds to described locating dowel and offer locating hole, locating dowel is arranged in locating hole.
2, in such scheme, described 4th interface at least has air-flow section and load segment in its axial direction, the internal diameter of air-flow section is less than the internal diameter of load segment, between air-flow section and load segment, a positioning step is formed with this, the internal diameter of described load segment and the external diameter of described 3rd interface match, the internal diameter of described 3rd interface is greater than the internal diameter of air-flow section, and the external diameter of described choke boss and the internal diameter of air-flow section match, and described substrate coordinates with positioning step.
3, in such scheme, the periphery of described choke boss is arranged with sealing ring.
Utility model works principle and advantage: the utility model is by the first threeway and the second threeway docking, the first interface of the first threeway is connected with the bleeding point of the first aspiration pump, second interface is connected with the bleeding point of the second aspiration pump, 5th interface of the second threeway is connected with the induction end of air pressure control sensor, 6th interface is connected with the inner space of refrigerator vaccum freshness box, because the 5th interface and the 6th interface communicate, therefore the atmospheric pressure value that air pressure control sensor detects is the atmospheric pressure value of refrigerator vaccum freshness box inside, the atmospheric pressure value that air pressure control sensor is detected sends to aspiration pump control circuit, when air pressure control sensor detects that refrigerator vaccum freshness box air pressure inside value is less than setting value, aspiration pump control circuit controls aspiration pump and starts working, outwards bleed by refrigerator vaccum freshness box, when air pressure control sensor detects that atmospheric pressure value reaches setting value, aspiration pump control circuit controls aspiration pump and quits work.The utility model structure is simple, and can detect the atmospheric pressure value of refrigerator vaccum freshness box inside in real time, to bleed to refrigerator vaccum freshness box in time.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model embodiment aspiration pump cross-sectional operational views;
Accompanying drawing 2 is the utility model embodiment aspiration pump inactive state sectional view.
In above accompanying drawing: 1, air pressure control sensor; 2, refrigerator vaccum freshness box; 3, the 5th interface; 4, the 6th interface; 5, air-flow section; 6, the 3rd interface; 7, the second interface; 8, first interface; 9, the second aspiration pump; 10, the first aspiration pump; 11, inner elements of check valve; 12, sealing ring; 13, valve core case.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of refrigerator air extraction structure with air pressure automatic control function
Shown in accompanying drawing 1 and accompanying drawing 2, comprise the first threeway and the second threeway, the first threeway has first interface 8, second interface 7 and the 3rd interface 6, second threeway has the 4th interface, the 5th interface 3 and the 6th interface 4.
Described first interface 8 is connected with the bleeding point of the first aspiration pump 9, and described second interface 7 is connected with the bleeding point of the second aspiration pump 10; Described 5th interface 3 is connected with the induction end of an air pressure control sensor 1, the signal output part of air pressure control sensor 1 is connected with the signal input part of described first aspiration pump 10 and the second aspiration pump 9 control circuit, and described 6th interface 4 is connected with the inner space of refrigerator vaccum freshness box 2.
Described 3rd interface 6 and the 4th interface are socketed mutually, and the one inside in the 3rd interface 6 and the 4th interface is provided with an inner elements of check valve 11, and this inner elements of check valve 11 only allows air-flow to lead to the first threeway by the two or three to flow.
One inside in described first threeway and the second threeway corresponds to described inner elements of check valve 11 and is provided with a valve core case 13.
Described inner elements of check valve 11 comprises a substrate, and the side of substrate is convexly equipped with a locating dowel, and the opposite side of substrate is convexly equipped with a choke boss.
Described valve core case 13 corresponds to described locating dowel and offer locating hole, locating dowel is arranged in locating hole.
Described 4th interface at least has air-flow section 5 and load segment in its axial direction, the internal diameter of air-flow section 5 is less than the internal diameter of load segment, between air-flow section 5 and load segment, a positioning step is formed with this, the internal diameter of described load segment and the external diameter of described 3rd interface 6 match, the internal diameter of described 3rd interface 6 is greater than the internal diameter of air-flow section 5, the external diameter of described choke boss and the internal diameter of air-flow section 5 match, and described substrate coordinates with positioning step.
The periphery of described choke boss is arranged with sealing ring 12.
Because the 5th interface 3 and the 6th interface 4 communicate, therefore the atmospheric pressure value that air pressure control sensor 1 detects is the atmospheric pressure value of refrigerator vaccum freshness box 2 inside, the atmospheric pressure value that air pressure control sensor 1 is detected sends to aspiration pump control circuit, when air pressure control sensor 1 detects that refrigerator vaccum freshness box 2 air pressure inside value is less than setting value, aspiration pump control circuit controls the first aspiration pump 10 and the second aspiration pump 9 is started working, outwards bleed by refrigerator vaccum freshness box 2, when air pressure control sensor 1 detects that atmospheric pressure value reaches setting value, aspiration pump control circuit controls the first aspiration pump 10 and the second aspiration pump 9 quits work.The utility model structure is simple, and can detect the atmospheric pressure value of refrigerator vaccum freshness box inside 2 in real time, to bleed to refrigerator vaccum freshness box 2 in time.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (4)
1. the refrigerator air extraction structure with air pressure automatic control function, it is characterized in that: comprise the first threeway and the second threeway, first threeway has first interface (8), the second interface (7) and the 3rd interface (6), and the second threeway has the 4th interface, the 5th interface (3) and the 6th interface (4); Wherein:
Described first interface (8) is connected with the bleeding point of the first aspiration pump (9), and described second interface (7) is connected with the bleeding point of the second aspiration pump (10); Described 5th interface (3) is connected with the induction end of an air pressure control sensor (1), the signal output part of air pressure control sensor (1) is connected with the signal input part of described first aspiration pump (10) and the second aspiration pump (9) control circuit, and described 6th interface (4) is connected with the inner space of refrigerator vaccum freshness box (2);
Described 3rd interface (6) and the 4th interface are socketed mutually, and the one inside in the 3rd interface (6) and the 4th interface is provided with an inner elements of check valve (11), and this inner elements of check valve (11) only allows air-flow to lead to the first threeway by the two or three to flow.
2. refrigerator air extraction structure according to claim 1, is characterized in that: the one inside in described first threeway and the second threeway corresponds to described inner elements of check valve (11) and is provided with a valve core case (13);
Described inner elements of check valve (11) comprises a substrate, and the side of substrate is convexly equipped with a locating dowel, and the opposite side of substrate is convexly equipped with a choke boss;
Described valve core case (13) is upper offers locating hole corresponding to described locating dowel, and locating dowel is arranged in locating hole.
3. refrigerator air extraction structure according to claim 2, it is characterized in that: described 4th interface at least has air-flow section (5) and load segment in its axial direction, the internal diameter of air-flow section (5) is less than the internal diameter of load segment, between air-flow section (5) and load segment, a positioning step is formed with this, the internal diameter of described load segment and the external diameter of described 3rd interface (6) match, the internal diameter of described 3rd interface (6) is greater than the internal diameter of air-flow section (5), the external diameter of described choke boss and the internal diameter of air-flow section (5) match, and described substrate coordinates with positioning step.
4. refrigerator air extraction structure according to claim 3, is characterized in that: the periphery of described choke boss is arranged with sealing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547229.2U CN204227807U (en) | 2014-09-22 | 2014-09-22 | With the refrigerator air extraction structure of air pressure automatic control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547229.2U CN204227807U (en) | 2014-09-22 | 2014-09-22 | With the refrigerator air extraction structure of air pressure automatic control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204227807U true CN204227807U (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420547229.2U Expired - Fee Related CN204227807U (en) | 2014-09-22 | 2014-09-22 | With the refrigerator air extraction structure of air pressure automatic control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204227807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531986A (en) * | 2020-04-17 | 2021-10-22 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
-
2014
- 2014-09-22 CN CN201420547229.2U patent/CN204227807U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531986A (en) * | 2020-04-17 | 2021-10-22 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20210922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |