CN211854541U - External equipment and air conditioner with refrigeration function - Google Patents

Abstract

The utility model discloses an air conditioner with refrigerating function. The air conditioner comprises external equipment, an expansion valve, a condenser, a compressor and an evaporator. The compressor, the condenser, the expansion valve, the The external device and the evaporator are connected in turn to form a loop. The external device includes a capillary tube and a stop valve. The capillary tube is arranged in a spiral manner. The stop valve is connected in parallel with the capillary tube. Both ends of the capillary tube are provided with pipe joints. The pipe joints are respectively fixedly connected with the pipes extending from the expansion valve and the pipes extending from the evaporator. The coiled capillary is connected between the expansion valve and the evaporator in the air conditioner, which reduces the pressure of the liquid refrigerant when it enters the capillary, thereby reducing the lowest refrigeration temperature and achieving the effect of rapid cooling.

Description

External equipment and air conditioner with refrigeration function

technical field

The invention relates to the field of refrigeration equipment, in particular to an external device and an air conditioner with a refrigeration function.

Background technique

The price of existing freezers is much higher than that of air conditioners, and in daily use, it is occasionally necessary to quickly cool food, which cannot be achieved by existing air conditioners or refrigerators.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an external device, which can be refrigerated by an air conditioner.

The present invention also provides an air conditioner with the above-mentioned external device.

An external device and an air conditioner with a refrigeration function according to the embodiment of the first aspect of the present invention include a capillary tube and a shut-off valve, wherein the capillary tube is arranged in a spiral manner, the shut-off valve is connected in parallel with the capillary tube, and both ends of the capillary tube are A pipe joint is provided.

The external equipment and the air conditioner with the refrigeration function according to the embodiment of the present invention have at least the following beneficial effects: connecting the coiled capillary tube between the expansion valve and the evaporator in the air conditioner, so that the pressure of the liquid refrigerant when entering the capillary tube is increased. Lower, and then lower the minimum cooling temperature, to achieve the effect of rapid cooling.

According to some embodiments of the present invention, the pipe joint is a copper pipe joint.

According to some embodiments of the present invention, the capillary tube includes an inlet section, an outlet section and an intermediate section, the inner pipe diameters of the inlet section and the outlet section are larger than the inner pipe diameter of the intermediate section, and the inlet section is different from the inner pipe diameter of the intermediate section. The inner pipe wall between the intermediate sections and between the intermediate section and the outlet section has a smooth transition.

According to some embodiments of the present invention, the inner pipe diameter of the inlet section and the outlet section is 5 mm˜7 mm, and the inner pipe diameter of the intermediate section is 1 mm˜3 mm.

According to some embodiments of the present invention, the total length of the capillary is between 250 mm and 600 mm.

According to some embodiments of the present invention, the pipe joint is fixed to the inlet section and the outlet section, and a thermal insulation cover is sleeved on the periphery of the middle section.

According to some embodiments of the present invention, the shut-off valve includes a solenoid valve.

The air conditioner with refrigeration function according to the embodiment of the second aspect of the present invention includes any one of the above-mentioned external equipment, an expansion valve, a condenser, a compressor and an evaporator, the compressor, the condenser, the expansion The valve, the external device and the evaporator are connected in sequence to form a loop.

According to some embodiments of the present invention, the pipe joint is respectively fixedly connected with the pipe extending from the expansion valve and the pipe extending from the evaporator.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic diagram of an installation structure of an air conditioner according to an embodiment of the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

1 , an air conditioner according to an embodiment of the present invention includes an external device 100 , an expansion valve 500 , a condenser 400 , a compressor 300 and an evaporator 200 , the compressor 300 , the condenser 400 , and the expansion valve 500. The plug-in device 100 and the evaporator 200 are connected in sequence to form a loop. The plug-in device 100 includes a capillary tube 110 and a stop valve 120. The capillary tube 110 is arranged in a circle, and the cut-off valve 120 is connected in parallel with the capillary tube 110. Both ends of the capillary tube 110 are provided with pipe joints, and the pipe joints are respectively fixedly connected to the pipes extending from the expansion valve 500 and the pipes extending from the evaporator 200 .

When in use, the pipeline between the expansion valve 500 and the evaporator 200 is disassembled, and the capillary tube 110 is connected between the expansion valve 500 and the evaporator 200. The capillary tube 110 is coiled and arranged to increase the path for the liquid refrigerant to pass through, thereby reducing the pressure. , the minimum cooling temperature of the refrigerant entering the evaporator 200 is lowered, and the quick freezing effect is achieved when the refrigerant enters the evaporator 200 .

In addition, the shut-off valve 120 is added to facilitate switching between the freezing mode and the normal air-conditioning mode.

When the shut-off valve 120 is opened, due to the large resistance of the capillary tube 110, the refrigerant will pass through the pipe at the shut-off valve 120 and reach the evaporator 200, using the original function of the air conditioner;

When the shut-off valve 120 is closed, the refrigerant enters the evaporator 200 through the capillary 110 to realize the quick freezing function.

In certain embodiments, the pipe joint is a copper pipe joint. Prevent the joint from being corroded by the refrigerant and prevent the refrigerant from leaking.

In some embodiments, the capillary tube 110 includes an inlet section, an outlet section and a middle section, the inner diameter of the inlet section and the outlet section is larger than the inner diameter of the middle section, and the inlet section is connected to the inner diameter of the middle section. The inner pipe wall between the intermediate sections and between the intermediate section and the outlet section has a smooth transition.

Preferably, the inner pipe diameter of the inlet section and the outlet section is 5 mm to 7 mm, and the inner pipe diameter of the intermediate section is 1 mm to 3 mm. In this implementation, preferably, the inner pipe diameter of the inlet section and the outlet section is 6 mm, and the inner pipe diameter of the middle section is 2 mm, so as to promote the flow of the refrigerant.

In some embodiments, the total length of the capillary 110 is between 250mm and 600mm. Assemble according to different temperature requirements.

In some embodiments, the pipe joint is fixed to the inlet section and the outlet section, and a heat preservation cover is sleeved on the periphery of the middle section. The outside temperature is prevented from affecting the temperature of the refrigerant in the capillary 110 .

In some embodiments, the shut-off valve 120 includes a solenoid valve. Easy to control.

Preferably, there are temperature sensors in some air conditioners, which are used to control the start and stop of the compressor 300 in real time, so as to control the cooling power, which will greatly affect the rapid freezing function after the transformation. Therefore, in this embodiment, in the air conditioner The original sensor is replaced with a constant-value resistor, thereby preventing the compressor 300 from stopping.

In the process of actual use, the constant-value resistor always gives a constant signal to the control system, and the control system controls the compressor 300 to work continuously, so that the function of freezing can be continuously realized.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. kind of change.

Claims (9)

1. An external device, characterized in that it comprises a capillary (110) and a shut-off valve (120), the capillary (110) is arranged in a circle, the shut-off valve (120) is connected in parallel with the capillary (110), and the capillary (110) is connected in parallel. Both ends of (110) are provided with pipe joints. 2 . The plug-in device according to claim 1 , wherein the pipe joint is a copper pipe joint. 3 . 3. The external device according to claim 1, wherein the capillary tube (110) comprises an inlet section, an outlet section and a middle section, and the inner diameter of the inlet section and the outlet section is larger than that of the middle section The inner pipe diameter between the inlet section and the intermediate section and the inner pipe wall between the intermediate section and the outlet section are smoothly transitioned. 4 . The external hanging device according to claim 3 , wherein the inner pipe diameter of the inlet section and the outlet section is 5 mm to 7 mm, and the inner pipe diameter of the middle section is 1 mm to 3 mm. 5 . 5. The plug-in device according to claim 3, characterized in that, the total length of the capillary (110) is between 250 mm and 600 mm. 6 . The external hanging device according to claim 3 , wherein the pipe joint is fixed to the inlet section and the outlet section, and a heat preservation cover is sleeved on the periphery of the middle section. 7 . 7. The plug-in device according to claim 1, wherein the shut-off valve (120) comprises a solenoid valve. 8. An air conditioner with a refrigerating function, comprising the external device (100) described in any one of claims 1 to 7, an expansion valve (500), a condenser (400), a compressor (300) and an evaporator (200), The compressor (300), the condenser (400), the expansion valve (500), the external equipment (100) and the evaporator (200) are connected in sequence to form a circuit. 9 . The air conditioner with refrigeration function according to claim 8 , wherein the pipe joints are respectively fixedly connected to the pipes extending from the expansion valve ( 500 ) and the pipes extending from the evaporator ( 200 ). 10 .

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