Vehicle-mounted refrigerator heated by compressor

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a vehicle-mounted refrigerator heated through a compressor. A refrigerant output end of the compressor is connected with the four-way valve, one of three ports of the four-way valve is connected with a backflow end of the compressor through a backflow pipe, a second port of the four-way valve is connected with the condenser, the condenser is connected with the drying filter, the drying filter is connected with the coil evaporator through a capillary tube, and the coil evaporator wraps the outer side of the inner container. The other end of the coil evaporator is connected with a third port of the four-way valve, and a heating coil is connected between the coil evaporator and the third port of the four-way valve. Heating is carried out in a manner of reversely conveying a refrigerant of the compressor; the reliability of the heating function of the vehicle-mounted refrigerator is improved, the energy loss of the system is reduced, and the later maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted refrigerators, and in particular relates to a vehicle-mounted refrigerator heated by a compressor. Background Art

[0002] There are usually two ways to implement the heating function of a car refrigerator:

[0003] 1. Paste a heating film on the outside of the inner tank. The heat of the heating film needs to pass through a multi-layer structure to reach the inside of the refrigerator, and additional electricity is required to heat the heating film. If the heating film is damaged in this way, it cannot be repaired and can only be replaced as a whole;

[0004] 2. Semiconductor blowing heating / cooling: This method has low temperature regulation efficiency and a very small temperature change threshold.

[0005] In the above two solutions, when the heating film or semiconductor is damaged, the whole system can only be replaced because it is sealed by foaming, which results in high maintenance costs. Utility Model Content

[0006] In order to solve the defects and shortcomings of the prior art, the purpose of the utility model is to provide a car refrigerator that uses a compressor for heating, which has a simple structure, a reasonable design, and is easy to use. It uses the reverse transmission of the compressor refrigerant for heating; it improves the reliability of the heating function of the car refrigerator, reduces the system energy loss, and reduces the subsequent maintenance cost.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it includes a compressor, a four-way valve, a condenser, a drying filter, a capillary tube, a coil evaporator, a heating coil, and an inner tank; the refrigerant output end of the compressor is connected to the four-way valve, one of the three-way ports of the four-way valve is connected to the reflux end of the compressor through a reflux pipe, the second port of the four-way valve is connected to the condenser, the condenser is connected to the drying filter, the drying filter is connected to the coil evaporator wrapped on the outside of the inner tank through a capillary tube, the other end of the coil evaporator is connected to the third port of the four-way valve, and a heating coil is connected between the coil evaporator and the third port of the four-way valve.

[0008] Preferably, the compressor, four-way valve, condenser, drying filter, capillary tube and coil evaporator form a refrigeration circulation channel.

[0009] Preferably, the compressor, heating coil, coil evaporator, capillary tube, drying filter, condenser and four-way valve form a heating circulation channel.

[0010] Preferably, the coil evaporator is distributed on the outer surface of the inner tank in an S-shaped structure and is integrated with the inner tank.

[0011] Preferably, the four-way valve is connected to a controller for on-off regulation.

[0012] After adopting the above structure, the beneficial effects of the utility model are: it utilizes the reverse transmission method of the compressor refrigerant for heating; it improves the reliability of the heating function of the vehicle refrigerator, reduces the energy loss of the system, and reduces the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model is described in detail through the following specific implementations and drawings.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 The utility model is a coil evaporator 6 distributed structure;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Explanation of the reference numerals: compressor 1, four-way valve 2, condenser 3, filter drier 4, capillary tube 5, coil evaporator 6, heating coil 7, inner tank 8. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0019] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0020] See Figure 1-Figure 3As shown, this specific embodiment adopts the following technical scheme: it includes a compressor 1, a four-way valve 2, a condenser 3, a drying filter 4, a capillary tube 5, a coil evaporator 6, a heating coil 7, and an inner tank 8; the refrigerant output end of the compressor 1 is connected to the four-way valve 2, one of the three-way ports of the four-way valve 2 is connected to the reflux end of the compressor 1 through a reflux pipe, the second port of the four-way valve 2 is connected to the condenser 3, the condenser 3 is connected to the drying filter 4, the drying filter 4 is connected to the coil evaporator 6 wrapped on the outside of the inner tank 8 through the capillary tube 5, the other end of the coil evaporator 6 is connected to the third port of the four-way valve 2, and a heating coil 7 is connected between the coil evaporator 6 and the third port of the four-way valve 2.

[0021] Among them, the compressor 1, four-way valve 2, condenser 3, drying filter 4, capillary tube 5, and coil evaporator 6 constitute a refrigeration circulation channel; the compressor 1, heating coil 7, coil evaporator 6, capillary tube 5, drying filter 4, condenser 3, and four-way valve 2 combine to form a heating circulation channel.

[0022] In addition, the coil evaporator 6 is distributed on the outer surface of the inner tank 8 in an S-shaped structure and is integrated with the inner tank 8; the four-way valve 2 is connected to a controller for on-off regulation.

[0023] The working principle of this specific implementation method is: by adding a four-way valve solenoid valve in the refrigeration pipeline to change the flow path of the refrigerant in the pipeline, the refrigerant that was originally going to flow through the condenser to dissipate heat is diverted to the refrigerator inner tank pipeline (both inflation type and plate and tube type are acceptable). Since the high-temperature and high-pressure refrigerant flows through the refrigerator inner tank, the heat that was originally dissipated will be used as a heat source to heat the cabinet. After releasing the heat through the inner tank, the refrigerant is heated again by the compressor, thus serving as a cycle. In addition, an auxiliary heating device can be added to the outside of the pipeline to heat the refrigerant with insufficient temperature for a second time to reach the required temperature.

[0024] This specific implementation method utilizes the reverse transmission of the compressor refrigerant to perform heating; it improves the reliability of the heating function of the vehicle refrigerator, reduces system energy loss, and reduces subsequent maintenance costs.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vehicle refrigerator using a compressor for heating, characterized in that: It comprises a compressor, a four-way valve, a condenser, a drying filter, a capillary tube, a coil evaporator, a heating coil and an inner tank; the refrigerant output end of the compressor is connected to the four-way valve, one of the three ports of the four-way valve is connected to the reflux end of the compressor through a reflux pipe, the second port of the four-way valve is connected to the condenser, the condenser is connected to the drying filter, the drying filter is connected to the coil evaporator wrapped on the outside of the inner tank through the capillary tube, the other end of the coil evaporator is connected to the third port of the four-way valve, and a heating coil is connected between the coil evaporator and the third port of the four-way valve.

2. The vehicle refrigerator using compressor heating according to claim 1, characterized in that: The compressor, four-way valve, condenser, drying filter, capillary tube and coil evaporator form a refrigeration circulation channel.

3. The vehicle refrigerator using compressor heating according to claim 1, characterized in that: The compressor, heating coil, coil evaporator, capillary tube, drying filter, condenser and four-way valve form a heating circulation channel.

4. The vehicle refrigerator using compressor heating according to claim 1, characterized in that: The coil evaporator is distributed on the outer surface of the inner tank in an S-shaped structure and is integrated with the inner tank.

5. The vehicle refrigerator using compressor heating according to claim 3, characterized in that: The four-way valve is connected to a controller for on-off regulation.

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