CN218972924U - Double-refrigerating system refrigerated cabinet - Google Patents

Abstract

The utility model provides a pair of refrigerating system refrigerated cabinet, includes compressor, condenser, dew prevention pipe, drier-filter, the exhaust end of compressor link to each other with the entrance point of condenser, the exit end of condenser links to each other with drier-filter's input through dew prevention pipe, still include electronic diverter valve, first cold-stored evaporimeter and second cold-stored evaporimeter, the exit end of drier-filter is connected to the entrance point of electronic diverter valve, the entrance of first cold-stored evaporimeter is connected through first capillary to an exit end of electronic diverter valve, the entrance of second cold-stored evaporimeter is connected to the exit end of first cold-stored evaporimeter, the entrance of second cold-stored evaporimeter is connected through the second capillary to another exit end of electronic diverter valve, the exit linkage of second cold-stored evaporimeter the inlet end of compressor. The advantages are that: effectively improves the temperature difference problem in the refrigerated cabinet and improves the refrigeration effect of the refrigerated cabinet.

Description

Double-refrigerating system refrigerated cabinet

Technical Field

The utility model belongs to the technical field of refrigeration, and particularly relates to a double-refrigerating-system refrigerated cabinet.

Background

The existing refrigerated cabinet generally comprises a cabinet body, an inner container, a heat preservation layer and a refrigerating system, in the prior art, the refrigerated cabinet generally only comprises one refrigerating system, the refrigerating system is a loop formed by a compressor, a condenser, a filter, a capillary tube and an evaporator, wherein the evaporator determines the length of the evaporating pipe according to the size of the volume of the refrigerated cabinet, the volume of the refrigerated cabinet is generally large, the length of the evaporating pipe is relatively long, the heat of the refrigerant in the evaporating pipe absorbed by the inner container is used for refrigerating air in the refrigerated cabinet, but because the cold air sinks, the temperature of the upper part of the refrigerated cabinet is higher than the temperature of the lower part of the refrigerated cabinet, a large temperature difference exists between the upper part and the lower part of the refrigerated cabinet, so that the refrigerating is unbalanced, and the refrigerating effect is poor.

In view of the above-described prior art, there is a need for an improvement in the construction of existing refrigerated cabinets, for which the applicant has devised advantageously, and the technical solutions described below are created in this context.

Disclosure of Invention

The utility model aims to provide a double-refrigerating-system refrigerator which can reduce the temperature difference in the refrigerator and balance the refrigerating effect.

The utility model aims at achieving the aim, and the refrigerator with the double refrigeration systems comprises a compressor, a condenser, an anti-dew pipe and a dry filter, wherein the exhaust end of the compressor is connected with the inlet end of the condenser, and the outlet end of the condenser is connected with the input end of the dry filter through the anti-dew pipe, and the refrigerator is characterized in that: the air conditioner further comprises an electric switching valve, a first refrigeration evaporator and a second refrigeration evaporator, wherein the inlet end of the electric switching valve is connected with the output end of the drying filter, one outlet end of the electric switching valve is connected with the inlet of the first refrigeration evaporator through a first capillary tube, the outlet of the first refrigeration evaporator is connected with the inlet of the second refrigeration evaporator, the other outlet end of the electric switching valve is connected with the inlet of the second refrigeration evaporator through a second capillary tube, and the outlet of the second refrigeration evaporator is connected with the air inlet end of the compressor.

In a specific embodiment of the present utility model, the refrigerator further includes a controller for controlling the switching outlet of the electric switching valve, wherein the refrigerator is provided with a first temperature probe in the refrigerator at a position corresponding to the first refrigerating evaporator, and a second temperature probe in the refrigerator at a position corresponding to the second refrigerating evaporator, and the controller is respectively connected with the compressor, the first temperature probe, the second temperature probe and the electric switching valve, and controls the electric switching valve to communicate with one of the first capillary tube and the second capillary tube according to the temperatures measured by the first temperature probe and the second temperature probe.

In another specific embodiment of the present utility model, the electric switching valve is a solenoid valve.

In yet another specific embodiment of the present utility model, the first temperature probe and the second temperature probe are both temperature sensors.

Due to the adoption of the structure, compared with the prior art, the utility model has the beneficial effects that: the temperature difference problem in the refrigerated cabinet is effectively improved, and the refrigerating effect of the refrigerated cabinet is improved; the second refrigeration evaporator is selectively started, so that the whole energy consumption of the refrigerated cabinet can be reduced, and the energy sources are saved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

In the figure: 1. a compressor; 2. a condenser; 3. an anti-dew tube; 4. drying the filter; 5. an electric switching valve, 51, a first capillary, 52, a second capillary; 6. a first refrigerated evaporator, 61. A first temperature probe; 7. the second refrigerated evaporator, 71. A second temperature probe.

Description of the embodiments

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, all concepts related to the directions (or azimuths) of up, down, left, right, front and rear are directed to the position states where the drawings are being described, so as to facilitate public understanding, and thus should not be construed as being particularly limiting to the technical solutions provided by the present utility model.

Referring to fig. 1, the utility model relates to a double-refrigerating-system refrigerated cabinet, which comprises a compressor 1, a condenser 2, an anti-dew pipe 3 and a dry filter 4, wherein the exhaust end of the compressor 1 is connected with the inlet end of the condenser 2, and the outlet end of the condenser 2 is connected with the input end of the dry filter 4 through the anti-dew pipe 3. The condenser 2 is used for cooling the compressed gaseous refrigerant into liquid refrigerant, and a condenser fan can be arranged around the condenser 2 to assist in cooling; the dry filter 4 is used for absorbing moisture and filtering impurities.

As the technical scheme provided by the utility model, the technical key points are as follows: the refrigerating system further comprises an electric switching valve 5, a first refrigerating evaporator 6 and a second refrigerating evaporator 7, wherein the electric switching valve 5 is used for changing the flow direction of a refrigerant, the inlet end of the electric switching valve 5 is connected with the output end of the drying filter 4, one outlet end of the electric switching valve 5 is connected with the inlet of the first refrigerating evaporator 6 through a first capillary tube 51, the outlet of the first refrigerating evaporator 6 is connected with the inlet of the second refrigerating evaporator 7, the other outlet end of the electric switching valve 5 is connected with the inlet of the second refrigerating evaporator 7 through a second capillary tube 52, and the outlet of the second refrigerating evaporator 7 is connected with the inlet end of the compressor 1, so that a closed refrigerating circulation system is formed. The first and second refrigeration evaporators 6, 7 are used to cool the refrigerated compartments of the refrigerated cabinet and may be provided with evaporator fans to speed up the flow of ambient air to assist in cooling.

Further, the refrigerator further comprises a controller 8 for controlling the electric switching valve 5 to switch the outlet end, wherein the refrigerator is provided with a first temperature probe 61 at a position corresponding to the first refrigerating evaporator 6 in the refrigerator, and a second temperature probe 71 at a position corresponding to the second refrigerating evaporator 7 in the refrigerator. The controller 8 is connected to the compressor 1, the first temperature probe 61, the second temperature probe 71 and the electric switching valve 5, and the controller 8 controls the electric switching valve 5 to communicate with one of the first capillary tube 51 and the second capillary tube 52 and supply the liquid refrigerant thereto according to the temperatures measured by the first temperature probe 61 and the second temperature probe 71. In this embodiment, the electric switching valve 5 is an electromagnetic valve; the first temperature probe 61 and the second temperature probe 71 are both temperature sensors.

In operation, the electrically operated switching valve 5 is first switched on the first capillary tube 51, and the first refrigeration evaporator 6 and the second refrigeration evaporator 7 are operated simultaneously. Since the refrigerant flows out from the electric switching valve 5, the heat absorbing capacity is strongest in the initial stage, and gradually decreases in a direction away from the electric switching valve 5, when the temperature at the position of the first refrigeration evaporator 6 has reached the preset refrigeration temperature, the temperature at the position of the second refrigeration evaporator 7 has not reached the preset refrigeration temperature, at this time, the electric switching valve 5 switches on the second capillary tube 52 to make the second refrigeration evaporator 7 operate independently, and when the temperature at the position of the second refrigeration evaporator 7 also reaches the preset refrigeration temperature, the controller 8 controls the compressor 1 to stop. In practical application, the first refrigeration evaporator 6 can be arranged at the upper part of the refrigerating chamber, and the second refrigeration evaporator 7 is arranged at the lower part of the refrigerating chamber, so that the upper temperature and the lower temperature of the refrigerating chamber can be controlled to be equivalent, the temperature difference is reduced, and the temperature is more uniform.

Claims (4)

1. The utility model provides a two refrigerating system refrigerated counter, includes compressor (1), condenser (2), prevents dew pipe (3), drier-filter (4), the exhaust end of compressor (1) link to each other with the entrance point of condenser (2), the exit end of condenser (2) links to each other with the input of drier-filter (4) through preventing dew pipe (3), its characterized in that: still include electronic diverter valve (5), first cold-stored evaporimeter (6) and second cold-stored evaporimeter (7), the output of drier-filter (4) is connected to the entry end of electronic diverter valve (5), the import of first cold-stored evaporimeter (6) is connected through first capillary (51) to an exit end of electronic diverter valve (5), the import of second cold-stored evaporimeter (7) is connected to the exit end of first cold-stored evaporimeter (6), the import of second cold-stored evaporimeter (7) is connected through second capillary (52) to another exit end of electronic diverter valve (5), the exit linkage of second cold-stored evaporimeter (7) the inlet of compressor (1).

2. The double refrigeration system refrigerator according to claim 1, further comprising a controller (8) for controlling the switching outlet of the electric switching valve (5), wherein the refrigerator is provided with a first temperature probe (61) in the refrigerator at a position corresponding to the first refrigerating evaporator (6) and a second temperature probe (71) in the refrigerator at a position corresponding to the second refrigerating evaporator (7), the controller (8) is respectively connected with the compressor (1), the first temperature probe (61), the second temperature probe (71) and the electric switching valve (5), and the controller (8) controls the electric switching valve (5) to communicate with one of the first capillary tube (51) and the second capillary tube (52) according to the temperatures measured by the first temperature probe (61) and the second temperature probe (71).

3. A double refrigeration system refrigerated cabinet according to claim 1 characterized in that said electric switching valve (5) is a solenoid valve.

4. The double refrigeration system refrigerated cabinet of claim 2 wherein the first temperature probe (61) and the second temperature probe (71) are temperature sensors.

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