CN210425717U - Air curtain cabinet - Google Patents
Air curtain cabinet Download PDFInfo
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- CN210425717U CN210425717U CN201921010701.8U CN201921010701U CN210425717U CN 210425717 U CN210425717 U CN 210425717U CN 201921010701 U CN201921010701 U CN 201921010701U CN 210425717 U CN210425717 U CN 210425717U
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- air outlet
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Abstract
The utility model discloses an air curtain cabinet, still including installing in outdoor air inlet air-cooler and air-out air-cooler, wear to be equipped with the air-supply line and go out the tuber pipe including cavity bottom, the air inlet end of air-supply line is connected with the air outlet of air inlet air-cooler, the air-out end of air-supply line with arrange circulating fan's air intake top in, go out the air inlet end of tuber pipe and arrange the air exit in under, the air-out end of tuber pipe and the air intake connection of air-out air-cooler. The air curtain cabinet of the external air conditioner has the advantages that the air inlet air cooler and the air outlet air cooler are additionally arranged in the original external box body, and the external temperature controller is used for controlling the air curtain cabinet to be switched with the external compressor to run, so that the external air curtain cabinet of the external air conditioner can keep a normal refrigeration effect in winter, and the problem that the external compressor cannot be normally used in winter is effectively solved; and the power of air inlet air-cooler and air outlet air-cooler when refrigerating is less, and the temperature reduction is fast, and the energy saving reduces cold-stored cost.
Description
The technical field is as follows:
the utility model relates to a refrigeration plant field, concretely relates to air curtain cabinet.
Background art:
the air curtain cabinets in the market at present are divided into an internal machine and an external machine, a large amount of heat and noise are generated when an internal compressor works, and the external machine air curtain cabinets are selected in most shops and supermarkets in order to ensure the refrigeration effect of the air curtain cabinets; however, the external compressor of the general external air curtain cabinet can be affected by temperature when in use, in winter in northern areas, after the atmospheric temperature drops to-20 ℃, the external compressor can not normally operate, the refrigeration function is lost, the indoor air curtain cabinet can not be normally refrigerated, and the indoor air curtain cabinet with the heating device can control the temperature to be about 25 ℃, the refrigeration temperature of refrigerated food can not be reached, and the storage of the refrigerated food is affected.
The utility model has the following contents:
an object of the utility model is to provide a but external compressor air curtain cabinet of normal use winter.
The utility model discloses by following technical scheme implement:
an air curtain cabinet comprises an air curtain cabinet body and an external compressor arranged outdoors; the side wall of the air curtain cabinet body is provided with a window, an article shelf is installed in the inner cavity of the air curtain cabinet body, an evaporator of the external compressor is installed at the bottom of the inner cavity, a circulating fan is installed above the evaporator and communicated with two sides of the article shelf, and an air outlet is formed in the top wall of the inner cavity adjacent to the window; the air conditioner also comprises an air inlet air cooler and an air outlet air cooler which are arranged outdoors, an air inlet pipe and an air outlet pipe are arranged at the bottom of the inner cavity in a penetrating way, the air inlet end of the air inlet pipe is connected with the air outlet of the air inlet air cooler, the air outlet end of the air inlet pipe is arranged above the air inlet of the circulating fan, the air inlet end of the air outlet pipe is arranged right below the air outlet, and the air outlet end of the air outlet pipe is connected with the air inlet of the air outlet air cooler;
a built-in temperature controller is arranged on the air curtain cabinet body, and a temperature measuring probe of the built-in temperature controller is arranged in the inner cavity; an external temperature controller is arranged outdoors, and a temperature measuring probe of the external temperature controller is arranged outdoors;
the external temperature controller and the coil of the temperature control relay are connected in series, the normally closed contact of the temperature control relay and the coil of the first time delay relay are connected in series, the normally open contact of the temperature control relay and the coil of the second time delay relay are connected in series, the normally open contact of the first time delay relay and the coil of the first contactor are connected in series, the normally open contact of the second time delay relay and the coil of the second contactor are connected in series, and then the normally open contact of the second time delay relay and the coil of the third contactor are connected in parallel and then connected with the built-in temperature controller in series to form a closed loop;
the air inlet air cooler with the parallelly connected back of air-out air-cooler with the normally open contact of first contactor is connected, first contactor is connected with the power, the normally open contact of second contactor is arranged in external compressor with between the power, the normally open contact of third contactor is arranged in circulating fan with between the power.
Preferably, a first electromagnetic valve is installed on the air inlet pipe, and a second electromagnetic valve is installed on the air outlet pipe; and after being connected in parallel, the coil of the first electromagnetic valve and the coil of the second electromagnetic valve are connected in series with the normally open contact of the first time delay relay to form a closed loop.
Preferably, an air suction box is fixed at the bottom of the inner cavity under the air outlet, the bottom of the air suction box is connected with the air outlet pipe, and a through hole is formed in the upper end of the air suction box.
Preferably, a grille is installed in the air outlet.
Preferably, the external compressor, the air inlet air cooler, the air outlet air cooler and the external temperature controller are installed in an external box body located outdoors, and a temperature probe of the external temperature controller is arranged outside the external box body.
Preferably, a filter screen is installed on an air inlet of the air inlet air cooler.
The utility model has the advantages that: the air curtain cabinet of the external air conditioner has the advantages that the air inlet air cooler and the air outlet air cooler are additionally arranged in the original external box body, and the external temperature controller is used for controlling the air curtain cabinet to be switched with the external compressor to run, so that the external air curtain cabinet of the external air conditioner can keep a normal refrigeration effect in winter, and the problem that the external compressor cannot be normally used in winter is effectively solved; and the power of air inlet air-cooler and air outlet air-cooler when refrigerating is less, and the temperature reduction is fast, and the energy saving reduces cold-stored cost.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of the circuit connection of the present invention.
In the figure: the air curtain cabinet comprises an air curtain cabinet body 1, a window 1.1, an inner cavity 1.2, a storage rack 1.3, a circulating fan 1.4, an air outlet 1.5, an external compressor 2, an evaporator 2.1, an air inlet air cooler 3, an air outlet air cooler 4, an air inlet pipe 5, an air outlet pipe 6, an internal temperature controller 7, an external temperature controller 8, a temperature control relay 9, a first time delay relay 10, a second time delay relay 11, a first contactor 12, a second contactor 13, a third contactor 14, a first electromagnetic valve 15, a second electromagnetic valve 16, an air suction box 17, a grating 18, an external box body 19 and a filter screen 20.
The specific implementation mode is as follows:
as shown in fig. 1 and 2, an air curtain cabinet comprises an air curtain cabinet body 1 and an external compressor 2 installed outdoors; the side wall of the air curtain cabinet body 1 is provided with a window 1.1, an article placing rack 1.3 is installed in an inner cavity 1.2 of the air curtain cabinet body 1, an evaporator 2.1 of an external compressor 2 is installed at the bottom of the inner cavity 1.2, a circulating fan 1.4 is installed above the evaporator 2.1, the circulating fan 1.4 is communicated with two sides of the article placing rack 1.3, and an air outlet 1.5 is arranged on the top wall of the inner cavity 1.2 adjacent to the window 1.1; the air conditioner also comprises an air inlet cooling fan 3 and an air outlet cooling fan 4 which are arranged outside the room, an air inlet pipe 5 and an air outlet pipe 6 are arranged at the bottom of the inner cavity 1.2 in a penetrating way, the air inlet end of the air inlet pipe 5 is connected with the air outlet of the air inlet cooling fan 3, the air outlet end of the air inlet pipe 5 is arranged above the air inlet of the circulating fan 1.4, the air inlet end of the air outlet pipe 6 is arranged under the air outlet 1.5, and the air outlet end of the air outlet pipe 6 is connected with the air inlet of the air outlet cooling fan 4;
a built-in temperature controller 7 is arranged on the air curtain cabinet body 1, and a temperature probe of the built-in temperature controller 7 is arranged in the inner cavity 1.2; an external temperature controller 8 is arranged outdoors, and a temperature measuring probe of the external temperature controller 8 is arranged outdoors;
the external temperature controller 8 and the coil of the temperature control relay 9 which are connected in series, the normally closed contact of the temperature control relay 9 and the coil of the first time delay relay 10 which are connected in series, the normally open contact of the temperature control relay 9 and the coil of the second time delay relay 11 which are connected in series, the normally open contact of the first time delay relay 10 and the coil of the first contactor 12 which are connected in series, the normally open contact of the second time delay relay 11 which is connected in series, the coil of the second contactor 13 and the coil of the third contactor 14 which are connected in parallel and then connected in series with the built-in temperature controller 7 form a closed loop;
the air inlet air cooler 3 and the air outlet air cooler 4 are connected in parallel and then connected with the normally open contact of the first contactor 12, the first contactor 12 is connected with the power supply, the normally open contact of the second contactor 13 is arranged between the external compressor 2 and the power supply, and the normally open contact of the third contactor 14 is arranged between the circulating fan 1.4 and the power supply.
Preferably, a first electromagnetic valve 15 is arranged on the air inlet pipe 5, and a second electromagnetic valve 16 is arranged on the air outlet pipe 6; after being connected in parallel, the coil of the first solenoid valve 15 and the coil of the second solenoid valve 16 are connected in series with the normally open contact of the first time delay relay 10 to form a closed loop.
Preferably, an air suction box 17 is fixed at the bottom of the inner cavity 1.2 right below the air outlet 1.5, the bottom of the air suction box 17 is connected with the air outlet pipe 6, and a through hole is formed in the upper end of the air suction box 17.
Preferably, a grille 18 is installed in the exhaust outlet 1.5.
Preferably, the external compressor 2, the air inlet air cooler 3, the air outlet air cooler 4 and the external temperature controller 8 are installed in an external box 19 located outdoors, and a temperature probe of the external temperature controller 8 is arranged outside the external box 19.
Preferably, a filter screen 20 is installed at an air inlet of the air intake air cooler 3. The air curtain cabinet comprises an air curtain cabinet body 1 and an external compressor 2 arranged outdoors; the side wall of the air curtain cabinet body 1 is provided with a window 1.1, an article placing rack 1.3 is installed in an inner cavity 1.2 of the air curtain cabinet body 1, an evaporator 2.1 of an external compressor 2 is installed at the bottom of the inner cavity 1.2, a circulating fan 1.4 is installed above the evaporator 2.1, the circulating fan 1.4 is communicated with two sides of the article placing rack 1.3, and an air outlet 1.5 is arranged on the top wall of the inner cavity 1.2 adjacent to the window 1.1; the air conditioner also comprises an air inlet cooling fan 3 and an air outlet cooling fan 4 which are arranged outside the room, an air inlet pipe 5 and an air outlet pipe 6 are arranged at the bottom of the inner cavity 1.2 in a penetrating way, the air inlet end of the air inlet pipe 5 is connected with the air outlet of the air inlet cooling fan 3, the air outlet end of the air inlet pipe 5 is arranged above the air inlet of the circulating fan 1.4, the air inlet end of the air outlet pipe 6 is arranged under the air outlet 1.5, and the air outlet end of the air outlet pipe 6 is connected with the air inlet of the air outlet cooling fan 4;
a built-in temperature controller 7 is arranged on the air curtain cabinet body 1, and a temperature probe of the built-in temperature controller 7 is arranged in the inner cavity 1.2; an external temperature controller 8 is arranged outdoors, a temperature measuring probe of the external temperature controller 8 is arranged outdoors, and in normal use, the internal temperature controller 7 is adjusted to 2-8 ℃, and the external temperature controller 8 is adjusted to 5 ℃;
the external temperature controller 8 and the coil of the temperature control relay 9 which are connected in series, the normally closed contact of the temperature control relay 9 and the coil of the first time delay relay 10 which are connected in series, the normally open contact of the temperature control relay 9 and the coil of the second time delay relay 11 which are connected in series, the normally open contact of the first time delay relay 10 and the coil of the first contactor 12 which are connected in series, the normally open contact of the second time delay relay 11 which is connected in series, the coil of the second contactor 13 and the coil of the third contactor 14 which are connected in parallel and then connected in series with the built-in temperature controller 7 form a closed loop;
the air inlet cooling fan 3 and the air outlet cooling fan 4 are connected in parallel and then connected with a normally open contact of a first contactor 12, the first contactor 12 is connected with a power supply, a normally open contact of a second contactor 13 is arranged between the external compressor 2 and the power supply, and a normally open contact of a third contactor 14 is arranged between the circulating fan 1.4 and the power supply;
when the external temperature controller 8 detects that the external temperature is higher than 5 ℃, the external temperature controller 8 is not switched on, a coil of the temperature control relay 9 is not electrified, a normally closed contact of the temperature control relay 9 is closed, a coil of the second time delay relay 11 is electrified, a normally open contact of the second time delay relay 11 is closed, a coil of the second contactor 13 is electrified, a normally open contact of the second contactor 13 is closed, and the external compressor 2 performs refrigeration; when the external temperature controller 8 detects that the external temperature is lower than or equal to 5 ℃, the external temperature controller 8 is switched on, a coil of the temperature control relay 9 is electrified, a normally closed contact of the temperature control relay 9 is disconnected, a coil of the second time delay relay 11 is electrified, a normally open contact of the second time delay relay 11 is disconnected, a coil of the second contactor 13 is electrified, a normally open contact of the second contactor 13 is disconnected, meanwhile, the normally open contact of the temperature control relay 9 is closed, a coil of the first time delay relay 10 is electrified, the normally open contact of the first time delay relay 10 is closed, a coil of the first contactor 12 is electrified, the normally open contact of the first contactor 12 is closed, and the air inlet air cooler 3 and the air outlet air cooler 4 are started to refrigerate;
when the built-in temperature controller 7 detects that the temperature in the air curtain cabinet body 1 is lower than a set value, a power supply connected with the built-in temperature controller 7 is disconnected, the air inlet cooling fan 3, the air outlet cooling fan 4 and the external compressor 2 are stopped, and the circulating fan 1.4 stops circulating;
when the external compressor 2 is used for refrigeration, the external compressor 2 enables the evaporator 2.1 to be cooled, the circulating fan 1.4 blows cold air of the evaporator 2.1 to the rear part of the commodity shelf 1.3, and blows the cold air downwards from the air outlet 1.5 to form an air curtain, and then the cold air is sucked by an air inlet of the circulating fan 1.4 to form circulation;
when the air inlet cooling fan 3 and the air outlet cooling fan 4 are used for refrigerating, the air inlet cooling fan 3 pumps outside cold air into the inner cavity 1.2, pumps the cold air to the rear part of the article placing rack 1.3 through the circulating fan 1.4, blows the cold air downwards from the air outlet 1.5 to form an air curtain, and discharges part of the cold air by using the air outlet cooling fan 4;
the air inlet air cooler 3 and the air outlet air cooler 4 are additionally arranged in the original external box body 19, and the external temperature controller 8 is used for controlling the external air cooler and the external compressor 2 to switch to operate, so that the external air curtain cabinet can keep a normal refrigeration effect in winter, and the problem that the external compressor 2 cannot be normally used in winter is effectively solved; and the power of air inlet air-cooler 3 and air outlet air-cooler 4 when refrigerating is less, and the temperature reduction is fast, and the energy saving reduces cold-stored cost.
Preferably, the air inlet pipe 5 and the air outlet pipe 6 are provided with a first electromagnetic valve 15 on the air inlet pipe 5, and a second electromagnetic valve 16 on the air outlet pipe 6; the coil of first solenoid valve 15 and the coil of second solenoid valve 16 are parallelly connected the back and are established ties with the normally open contact of first time delay relay 10 and form closed circuit, when air inlet air-cooler 3 and air-out air-cooler 4 start, the coil of first solenoid valve 15 and the coil of second solenoid valve 16 get electric, first solenoid valve 15 and second solenoid valve 16 are opened, through setting up first solenoid valve 15 and second solenoid valve 16, guarantee when using external compressor 2 refrigeration, high temperature air can not follow in the pipeline and get into in the cavity 1.2.
Preferably, interior cavity 1.2 bottom under the air exit 1.5 is fixed with the box 17 that induced drafts, and the bottom of the box 17 that induced drafts is connected with air-out pipe 6, has seted up the through-hole in the upper end of the box 17 that induced drafts, through the box 17 that induced drafts, when using air inlet air-cooler 3 and air-out air-cooler 4 to refrigerate, evenly takes out the air that blows out in the air exit 1.5, avoids the outside air suction of cavity 1.2 in with.
Preferably, a grille 18 is installed in the air outlet 1.5 to ensure that the cold air is uniformly blown out from the air outlet 1.5.
Preferably, the external compressor 2, the air inlet air cooler 3, the air outlet air cooler 4 and the external temperature controller 8 are installed in an external box 19 located outdoors, a temperature probe of the external temperature controller 8 is arranged outside the external box 19, and the external compressor 2, the air inlet air cooler 3, the air outlet air cooler 4 and the external temperature controller 8 are protected from being artificially damaged by the external box 19.
Preferably, a filter screen 20 is installed at an air inlet of the air inlet cooling fan 3, so that the air inlet cooling fan 3 is prevented from being blocked by dust.
The working principle is as follows: when the external temperature controller 8 detects that the external temperature is higher than 5 ℃, the external temperature controller 8 is not switched on, a coil of the temperature control relay 9 is not electrified, a normally closed contact of the temperature control relay 9 is closed, a coil of the second time delay relay 11 is electrified, a normally open contact of the second time delay relay 11 is closed, a coil of the second contactor 13 is electrified, a normally open contact of the second contactor 13 is closed, and the external compressor 2 performs refrigeration; when the external temperature controller 8 detects that the external temperature is lower than or equal to 5 ℃, the external temperature controller 8 is switched on, a coil of the temperature control relay 9 is electrified, a normally closed contact of the temperature control relay 9 is disconnected, a coil of the second time delay relay 11 is electrified, a normally open contact of the second time delay relay 11 is disconnected, a coil of the second contactor 13 is electrified, a normally open contact of the second contactor 13 is disconnected, meanwhile, the normally open contact of the temperature control relay 9 is closed, a coil of the first time delay relay 10 is electrified, the normally open contact of the first time delay relay 10 is closed, a coil of the first contactor 12 is electrified, the normally open contact of the first contactor 12 is closed, and the air inlet air cooler 3 and the air outlet air cooler 4 are started to refrigerate;
when the built-in temperature controller 7 detects that the temperature in the air curtain cabinet body 1 is lower than a set value, a power supply connected with the built-in temperature controller 7 is disconnected, the air inlet cooling fan 3, the air outlet cooling fan 4 and the external compressor 2 are stopped, and the circulating fan 1.4 stops circulating;
when the external compressor 2 is used for refrigeration, the external compressor 2 cools the evaporator 2.1, the circulating fan 1.4 blows cold air of the evaporator 2.1 to the rear part of the commodity shelf 1.3, the cold air is blown out downwards from the air outlet 1.5 to form an air curtain, and then the cold air is sucked by the air inlet of the circulating fan 1.4 to form circulation.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An air curtain cabinet comprises an air curtain cabinet body and an external compressor arranged outdoors; the window has been seted up to the lateral wall of air curtain cabinet body install the supporter in the interior cavity of air curtain cabinet body, the evaporimeter of external compressor install in interior cavity bottom circulating fan is installed to the top of evaporimeter, circulating fan communicates the both sides of supporter, with the window is adjacent be equipped with air exit, its characterized in that on the interior cavity roof: the air conditioner also comprises an air inlet air cooler and an air outlet air cooler which are arranged outdoors, an air inlet pipe and an air outlet pipe are arranged at the bottom of the inner cavity in a penetrating way, the air inlet end of the air inlet pipe is connected with the air outlet of the air inlet air cooler, the air outlet end of the air inlet pipe is arranged above the air inlet of the circulating fan, the air inlet end of the air outlet pipe is arranged right below the air outlet, and the air outlet end of the air outlet pipe is connected with the air inlet of the air outlet air cooler;
a built-in temperature controller is arranged on the air curtain cabinet body, and a temperature measuring probe of the built-in temperature controller is arranged in the inner cavity; an external temperature controller is arranged outdoors, and a temperature measuring probe of the external temperature controller is arranged outdoors;
the external temperature controller and the coil of the temperature control relay are connected in series, the normally closed contact of the temperature control relay and the coil of the first time delay relay are connected in series, the normally open contact of the temperature control relay and the coil of the second time delay relay are connected in series, the normally open contact of the first time delay relay and the coil of the first contactor are connected in series, the normally open contact of the second time delay relay and the coil of the second contactor are connected in series, and then the normally open contact of the second time delay relay and the coil of the third contactor are connected in parallel and then connected with the built-in temperature controller in series to form a closed loop;
the air inlet air cooler with the parallelly connected back of air-out air-cooler with the normally open contact of first contactor is connected, first contactor is connected with the power, the normally open contact of second contactor is arranged in external compressor with between the power, the normally open contact of third contactor is arranged in circulating fan with between the power.
2. An air curtain cabinet as claimed in claim 1 wherein: a first electromagnetic valve is arranged on the air inlet pipe, and a second electromagnetic valve is arranged on the air outlet pipe;
and after being connected in parallel, the coil of the first electromagnetic valve and the coil of the second electromagnetic valve are connected in series with the normally open contact of the first time delay relay to form a closed loop.
3. An air curtain cabinet as claimed in any one of claims 1 or 2 wherein: the bottom of the inner cavity body under the air outlet is fixed with an air suction box, the bottom of the air suction box is connected with the air outlet pipe, and the upper end of the air suction box is provided with a through hole.
4. An air curtain cabinet as claimed in any one of claims 1 or 2 wherein: and a grid is arranged in the air outlet.
5. An air curtain cabinet as claimed in any one of claims 1 or 2 wherein: the external compressor, the air inlet air cooler, the air outlet air cooler and the external temperature controller are installed in an external box body located outdoors, and a temperature measuring probe of the external temperature controller is arranged outside the external box body.
6. An air curtain cabinet as claimed in claim 5 wherein: and a filter screen is arranged on an air inlet of the air inlet air cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921010701.8U CN210425717U (en) | 2019-07-01 | 2019-07-01 | Air curtain cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921010701.8U CN210425717U (en) | 2019-07-01 | 2019-07-01 | Air curtain cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210425717U true CN210425717U (en) | 2020-04-28 |
Family
ID=70378198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921010701.8U Active CN210425717U (en) | 2019-07-01 | 2019-07-01 | Air curtain cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210425717U (en) |
-
2019
- 2019-07-01 CN CN201921010701.8U patent/CN210425717U/en active Active
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