CN213578360U - Switchable equipment for refrigeration and heating - Google Patents

Abstract

The utility model discloses a switchable device for refrigeration and heating, which comprises a cabinet body, wherein a fan is arranged at the top end of the interior of the cabinet body, and a bottom plate fixedly provided with a heating sheet is arranged at the bottom of the interior of the cabinet body; an evaporator is installed on the rear side wall of the interior of the cabinet body, a cavity is formed between the bottom end of the interior of the cabinet body and the bottom plate on which the heating sheet is installed, a compressor is fixedly installed in the cavity, one end of the compressor is connected with the evaporator, and the other end of the compressor is connected with a condenser installed outside the cabinet body; the evaporator is connected with the condenser through a capillary tube, and an electromagnetic valve is arranged between the evaporator and the condenser; the switchable equipment for refrigerating and heating combines the refrigerating principle of a refrigerator and simultaneously adopts the electric heating principle to combine the refrigerating principle and the heating principle into a whole; the air conditioner is realized by combining the refrigeration and heating principles of the air conditioner, the requirements of people can be met according to seasonal changes, and the space and the cost can be saved.

Description

Switchable equipment for refrigeration and heating

Technical Field

The utility model relates to an electrical apparatus, beverage storage device technical field, concretely relates to changeable equipment heats.

Background

The beverage cabinets sold in the market at present have single functions and can only refrigerate or heat; when a user purchases one of the products, the user can only drink cold drinks in summer or hot drinks in winter, and the user cannot simultaneously drink the cold drinks and the hot drinks; when two products are purchased, firstly, the occupied space is large; secondly, according to seasonal variation, the condition that one piece of equipment is idle can occur, and resources are wasted.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model provides a changeable equipment heats.

The technical scheme of the utility model is that: the utility model provides switchable equipment for refrigeration and heating, which comprises a cabinet body, wherein a fan is arranged at the top end of the interior of the cabinet body, and a bottom plate fixedly provided with a heating sheet is arranged at the bottom of the interior of the cabinet body; an evaporator is installed on the rear side wall of the interior of the cabinet body, a cavity is formed between the bottom end of the interior of the cabinet body and the bottom plate on which the heating sheet is installed, a compressor is fixedly installed in the cavity, one end of the compressor is connected with the evaporator, and the other end of the compressor is connected with a condenser installed outside the cabinet body; the evaporator is connected with the condenser through a capillary tube, and an electromagnetic valve is arranged between the evaporator and the condenser.

Furthermore, rack clamping strips are arranged on the left side wall and the right side wall inside the cabinet body.

Furthermore, the electromagnetic valve is a four-way reversing valve arranged on the outer side of the cabinet body.

Further, the solenoid valve comprises a pilot valve, a spring arranged in the pilot slide valve and a main slide valve communicated with the pilot valve through a capillary tube.

Furthermore, the heating plate is provided with a heating wire inside and a shield outside.

Furthermore, the condenser is externally hung or internally installed.

The utility model discloses the beneficial effect who reaches does: the switchable equipment for refrigerating and heating combines the refrigerating principle of a refrigerator and simultaneously adopts the electric heating principle to combine the refrigerating principle and the heating principle into a whole; the air conditioner is realized by combining the refrigeration and heating principles of the air conditioner, the requirements of people can be met according to seasonal changes, and the space and the cost can be saved.

Drawings

Fig. 1 is a schematic view of the overall structure of the switchable device for cooling and heating of the present invention.

Fig. 2 is a rear view of the cooling and heating switchable device of the present invention.

FIG. 3 is a schematic view of the connection structure between the evaporator and the condenser of the present invention

Fig. 4 is a structural diagram of the refrigeration working principle of the present invention.

Fig. 5 is a structural diagram of the working principle of heating of the present invention.

In the figure: 1. a cabinet body; 2. a fan; 3. a rack clamping strip; 4. a heating plate; 5. an evaporator; 51. an inlet tube; 52. an outlet pipe; 6. a compressor; 7. a condenser; 8. a filter; 9. an electromagnetic valve; 91. a pilot spool; 92. a spring; 93. a left piston cavity; 94. a right piston chamber; 95. a main spool valve; 10. a capillary tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the present invention provides a switchable device for refrigeration and heating, which comprises a cabinet body 1, wherein rack fastening strips 3 are installed on the left and right side walls inside the cabinet body 1, and are used for installing racks and storing food and beverage; fan 2 is installed on the top of the cabinet body 1 inside, and the bottom is equipped with the bottom plate of fixed mounting heating plate 4, heating plate 4 is equipped with the heater strip for inside, the electric plate of outside parcel guard shield to fan 2 and electric heater unit all are direct power connection. Specifically, the method comprises the following steps: the heating wires are laid on one plate, the outside is wrapped by the protective cover, the electric heating plates wrapped by the protective cover are connected with the box body through screws, the fan 2 performs wind circulation, so that the cold or heat generated in the equipment can reach each region, the temperature in the cabinet body 1 is balanced, and the phenomenon that the temperature of a certain part is too high or too low is avoided.

An evaporator 5 is arranged on the rear side wall in the cabinet body 1, a cavity is arranged between the bottom end in the cabinet body 1 and a bottom plate on which a heating sheet 4 is arranged, a compressor 6 is fixedly arranged in the cavity, one end of the compressor 6 is connected with the evaporator 5, the other end of the compressor 6 is connected with a condenser 7 arranged outside the cabinet body 1, the condenser 7 is externally hung or built-in, and pipelines in a refrigerating system are connected through welding; the evaporator 5 is connected with the condenser 7 through a capillary tube 10, an electromagnetic valve 9 is installed between the evaporator 5 and the condenser 7, a filter 8 is installed between the electromagnetic valve 9 and the condenser 7, the specific connection relationship is as shown in fig. 3, the electromagnetic valve 9 is a four-way reversing valve arranged outside the cabinet body 1, and the electromagnetic valve 9 comprises a pilot valve, a spring 92 arranged in the pilot valve, and a main slide valve 95 communicated with the pilot valve through the capillary tube 10.

The working principle is the combination of refrigerator refrigeration and electric heater heating, and the refrigeration principle is: when the equipment works, the compressor 6 sucks the low-temperature and low-pressure refrigerant vapor generated by the evaporator 5 into the cylinder, the low-temperature and low-pressure refrigerant vapor is compressed by the compressor 6, when the pressure is increased (the temperature is also increased) to be slightly higher than the pressure in the condenser 7, the high-pressure refrigeration vapor in the cylinder is discharged into the condenser 7, the high-temperature and high-pressure refrigerant vapor in the condenser 7 exchanges heat with air with lower temperature, heat is released into the air, heat dissipation liquefaction is carried out, and the refrigerant discharged from the condenser 7 becomes normal-temperature and high-pressure liquid. At this time, the liquid refrigerant at normal temperature and high pressure is cooled (depressurized) by the capillary tube 10 (or expansion valve), and then becomes a low-temperature and low-pressure liquid. After the low-temperature and low-pressure liquid refrigerant enters the evaporator 5, the liquid refrigerant is vaporized again after absorbing heat of the object to be cooled in the evaporator 5. The cooled object is cooled and the refrigerant vapor (low-temperature and low-pressure gas) is sucked by the compressor 6, so that a cycle is completed through four processes of compression, condensation, expansion and evaporation in the refrigerating system.

The specific principle of heating is as follows: the electric energy is directly converted into heat through the electric heating wire. When heating is needed, a user modulates the gears into a heating mode, the refrigerating system stops working, and the electric heating plate 4 is powered on to work. The heating sheet 4 works according to the temperature required by the product setting, so that the food stored in the cabinet body 1 is heated; the electric heating wire is used for heating and directly converting electric energy into heat energy. When heating is needed, the refrigeration system is stopped, namely four main components: the compressor 6, the condenser 7, the throttle valve and the evaporator 5 are not in action. The electric heating wire is switched on, and heat is generated electrically. The fan 2 in the cabinet body 1 accelerates the circulation of heat, so that the heat can reach each position in the cabinet body 1, the temperature of each area in the cabinet body 1 is balanced, and the phenomenon that the temperature of a certain part is too high or too low is prevented.

Example 2

Unlike embodiment 1, the heating principle is different, and the heating principle in this embodiment is: the positions of the suction and exhaust pipes of the refrigeration system are exchanged by the reversing of the electromagnetic valve 9 in the system. The original coil pipe in the cabinet of the refrigeration working evaporator 5 is changed into the condenser 7 during heating, so that the refrigeration system absorbs heat outside the cabinet body 1 and releases heat into the cabinet body 1, and the purpose of heating is achieved.

The method specifically comprises the following steps: when the electromagnetic valve 9 is in a power-off state, the refrigeration mode is adopted; when the power is on, the heating mode is adopted; the analysis is carried out by combining the refrigerating and heating schematic diagrams in the following figures, and during refrigerating: when the coil of the electromagnetic valve 9 is in a power-off state, the pilot slide valve 91 is driven by the right compression spring 92 to move downwards and leftwards, high-pressure gas enters the capillary tube 10 and then enters the right piston cavity 94, on the other hand, the gas in the left piston cavity 93 is discharged, and due to the pressure difference existing at the two ends of the piston, the piston and the main slide valve 95 move leftwards, so that the exhaust pipe is communicated with a connecting pipe outside the cabinet (the condenser 7), and the other two connecting pipes are communicated, thereby forming a refrigeration cycle.

During heating: when the coil of the electromagnetic valve 9 is in a power-on state, the pilot slide valve 91 overcomes the tension of the compression spring 92 to move right under the action of the magnetic force generated by the electromagnetic coil, high-pressure gas enters the capillary tube 10 and then enters the left piston cavity 93, on the other hand, the gas in the right piston cavity 94 is discharged, and because of the pressure difference existing at the two ends of the piston, the piston and the main slide valve 95 move right, so that the exhaust pipe is communicated with the connecting pipe in the cabinet (the condenser 7), and the other two connecting pipes are communicated, thereby forming a heating cycle.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "etc., indicate orientations or positional relationships, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the present invention.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (6)

1. A switchable apparatus for cooling and heating, comprising a cabinet, characterized in that: a fan is installed at the top end inside the cabinet body, and a bottom plate fixedly provided with a heating sheet is arranged at the bottom of the cabinet body; an evaporator is installed on the rear side wall of the interior of the cabinet body, a cavity is formed between the bottom end of the interior of the cabinet body and the bottom plate on which the heating sheet is installed, a compressor is fixedly installed in the cavity, one end of the compressor is connected with the evaporator, and the other end of the compressor is connected with a condenser installed outside the cabinet body; the evaporator is connected with the condenser through a capillary tube, and an electromagnetic valve is arranged between the evaporator and the condenser.

2. A switchable apparatus for cooling and heating according to claim 1, wherein: the left side wall and the right side wall in the cabinet body are provided with rack clamping strips.

3. A switchable apparatus for cooling and heating according to claim 1, wherein: the electromagnetic valve is a four-way reversing valve arranged on the outer side of the cabinet body.

4. A switchable apparatus for cooling and heating according to claim 1 or 3, wherein: the electromagnetic valve comprises a pilot slide valve, a spring arranged in the pilot valve and a main slide valve communicated with the pilot valve through a capillary tube.

5. A switchable apparatus for cooling and heating according to claim 1, wherein: the heating plate is an electric heating plate with a heating wire arranged inside and a protective cover wrapped outside.

6. A switchable apparatus for cooling and heating according to claim 1, wherein: the condenser is externally hung or internally installed.

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