Cooling device for electric control box of vapor compression refrigeration equipment

Abstract

The utility model discloses a cooling device for an electric control box of vapor compression refrigeration equipment, which relates to electric control box cooling equipment and comprises a capillary tube mechanism and a valve mechanism, and the capillary tube mechanism is used for being embedded in at least one side wall of the electric control box or fixedly attached to the inner surface of at least one side wall of the electric control box; an inlet of the capillary mechanism is connected with an outlet of the condenser, the valve mechanism is connected between the inlet of the capillary mechanism and the outlet of the condenser, and an outlet of the capillary mechanism is connected with an inlet of the evaporator. According to the utility model, the electric control box of the steam compression refrigeration equipment can be cooled while the original load is cooled by utilizing the steam compression refrigeration equipment, and meanwhile, the electric control box has a relatively closed space, so that the waterproof and dustproof capabilities of the electric control box are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cooling equipment technical field of electric control box 1, especially to a cooling device for the electric control box of vapor compression refrigeration equipment. BACKGROUND

[0002] In order to match the increasing user demand, the refrigeration and heating capacity of temperature control equipment also needs to be constantly rising, while the temperature control equipment requires very compact and complete functions, so that the types and power of components in the electric control box of the temperature control equipment are more and more, and the heat generation of the electric control box is also more and more.

[0003] At present, the working cycle principle of the common refrigeration heat pump equipment is mostly vapor compression type, and the common cooling method for the electric control box of the refrigeration heat pump equipment is to install a fan for heat dissipation. Since the refrigeration heat pump equipment is often used in high-temperature, high-humidity and high-dust environments, the effect of using a traditional fan to cool the electric control box in a high-temperature, high-humidity and high-dust environment is not obvious. Moreover, long-term use of a traditional fan for heat dissipation in a high-temperature, high-humidity and high-dust environment will cause the ventilation filter screen on the surface of the electric control box to be blocked, thereby causing the temperature in the electric control box to be too high, and further affecting the normal use of the refrigeration heat pump equipment. In addition, using a traditional fan for heat dissipation requires a large area of holes to be opened on the electric control box, which destroys the overall sealing of the electric control box. At the same time, the heat dissipation fan has a large volume, which is not friendly to the design of the internal space of the electric control box. SUMMARY

[0004] To solve the technical problems in the background art, the utility model provides a cooling device for the electric control box of vapor compression refrigeration equipment.

[0005] The cooling device for the electric control box of vapor compression refrigeration equipment provided by the utility model comprises a capillary tube mechanism and a valve mechanism, the capillary tube mechanism is used for being embedded in at least one side wall of the electric control box or being fixedly attached to the inner surface of at least one side wall of the electric control box, the inlet of the capillary tube mechanism is connected with the outlet of the condenser, the valve mechanism is connected between the inlet of the capillary tube mechanism and the outlet of the condenser, and the outlet of the capillary tube mechanism is connected with the inlet of the evaporator.

[0006] The cooling device for the electric control box of vapor compression refrigeration equipment provided by the utility model comprises a capillary tube mechanism and a valve mechanism, the capillary tube mechanism is used for being embedded in at least one side wall of the electric control box or being fixedly attached to the inner surface of at least one side wall of the electric control box, the inlet of the capillary tube mechanism is connected with the outlet of the condenser, the valve mechanism is connected between the inlet of the capillary tube mechanism and the outlet of the condenser, and the outlet of the capillary tube mechanism is connected with the inlet of the evaporator.

[0007] The inlet of the capillary tube mechanism is connected with the outlet of the condenser, the valve mechanism is connected between the inlet of the capillary tube mechanism and the outlet of the condenser, and the outlet of the capillary tube mechanism is connected with the inlet of the evaporator.

[0008] Preferably, the capillary tube mechanism comprises a capillary tube in a continuous U-shaped detour structure, one end of the capillary tube is connected with the valve mechanism, and the other end of the capillary tube is connected with the inlet of the evaporator.

[0009] Preferably, the capillary mechanism comprises a capillary tube in a continuous planar helical line structure, one end of the capillary tube being connected to the valve mechanism, and the other end of the capillary tube being connected to the inlet of the evaporator.

[0010] Preferably, the capillary mechanism comprises a plurality of capillary tubes arranged in parallel, the first ends of the plurality of capillary tubes being connected to the valve mechanism, and the other ends of the plurality of capillary tubes being connected to the inlet of the evaporator.

[0011] Preferably, the plurality of capillary tubes are in a linear, U-shaped or S-shaped form.

[0012] Preferably, a temperature sensor is further included, and the temperature sensor is arranged in the electric control box.

[0013] Preferably, the valve mechanism is an electromagnetic valve.

[0014] Preferably, a controller is further included, and the electromagnetic valve and the temperature sensor are electrically connected to the controller.

[0015] During operation of the vapor compression refrigeration device, the compressor works, the liquid refrigerant in the evaporator obtains high-temperature and high-pressure gaseous refrigerant by absorbing external heat, the gaseous refrigerant is absorbed and compressed into high-temperature and high-pressure refrigerant vapor by the compressor, enters the condenser to be cooled into high-pressure and medium-temperature refrigerant liquid, and becomes low-pressure and low-temperature liquid refrigerant after the throttling valve, and the refrigerant enters the evaporator to evaporate and absorb heat, thereby taking away the heat of the heat medium, and completing the refrigeration cycle of the temperature control device.

[0016] When it is necessary to cool the electric control box, the valve mechanism is opened, the high-pressure refrigerant flowing out of the outlet end of the condenser passes through the capillary tube, the refrigerant gradually depressurizes due to the resistance in the capillary tube, and starts to evaporate and absorb heat, thereby taking away the heat around the capillary tube, taking away the heat in the electric control box through heat conduction and radiation, and completing the cooling work of the electric control box.

[0017] In the utility model, the cooling device for the electric control box of the vapor compression refrigeration device is embedded in at least one side wall of the electric control box or fixed on the inner surface of at least one side wall of the electric control box, and can cool the electric control box of the vapor compression refrigeration device while cooling the original load by using the vapor compression refrigeration device.

[0018] Compared with the conventional air cooling, the utility model does not need a fan, can cool the electric control box while making the electric control box have a relatively closed space, greatly improves the waterproof and dustproof capability of the electric control box, completely meets the outdoor use requirement, guarantees the dryness and cleanness inside the electric control box, and makes the electric components run in a good environment.

[0019] Moreover, compared with the conventional external aluminum fin heat dissipation, the capillary mechanism is small in size and is embedded in at least one side wall of the electric control box or is fixedly attached to the inner surface of at least one side wall of the electric control box, and no additional installation space is required. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structure diagram of the cooling device for the electric control box of the vapor compression refrigeration equipment according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] Reference Figure 1 The present application provides a cooling device for an electric control box of a vapor compression refrigeration equipment, and the vapor compression refrigeration equipment further comprises a condenser 4, a compressor 5, an evaporator 6 and a throttling mechanism 7, and the outlet of the compressor 5, the condenser 4, the throttling mechanism 7, the evaporator 6 and the inlet of the compressor 5 are sequentially connected to form a refrigeration circuit.

[0023] The cooling device comprises:

[0024] The capillary mechanism 2 is used for being embedded in at least one side wall of the electric control box 1 or being fixedly attached to the inner surface of at least one side wall of the electric control box 1.

[0025] The inlet of the capillary mechanism 2 is connected with the outlet of the condenser 4, the valve mechanism is connected between the inlet of the capillary mechanism 2 and the outlet of the condenser 4, and the outlet of the capillary mechanism 2 is connected with the inlet of the evaporator 6.

[0026] During the operation of the vapor compression refrigeration equipment, the compressor 5 works, the liquid refrigerant in the evaporator 6 obtains high-temperature and high-pressure gaseous refrigerant by absorbing external heat, the gaseous refrigerant is absorbed and compressed into high-temperature and high-pressure refrigerant vapor by the compressor 5, enters the condenser 4 to be cooled into high-pressure and medium-temperature refrigerant liquid, and becomes low-pressure and low-temperature liquid refrigerant after passing through the throttling valve, and the refrigerant enters the evaporator 6 to evaporate and absorb heat, thereby taking away the heat of the heat medium, and completing the refrigeration cycle of the temperature control equipment.

[0027] When the electric control box 1 needs to be cooled, the valve mechanism is opened, the high-pressure refrigerant flowing out of the outlet end of the condenser 4 passes through the capillary, the refrigerant gradually reduces the pressure due to the resistance in the capillary, and starts to evaporate and absorb heat, thereby taking away the heat around the capillary, taking away the heat in the electric control box 1 through heat conduction and radiation heat transfer, and completing the cooling work of the electric control box 1.

[0028] The utility model discloses a capillary mechanism 2 is embedded in or is fixedly attached to the inner surface of at least one side wall of the electric control box 1, can carry out the cooling of the electric control box 1 of vapor compression refrigeration equipment while using vapor compression refrigeration equipment to cool the original load.

[0029] Compared with conventional air cooling, the utility model discloses a fan, can make the electric control box 1 have a relatively closed space while cooling the electric control box 1, greatly improve the waterproof dustproof ability of electric control box 1, completely satisfy the outdoor use demand, also guarantee the dry and clean inside electric control box 1, make electrical component run in good environment.

[0030] Moreover, compared with conventional external aluminum fin heat dissipation, the capillary mechanism 2 of the utility model is small in size and is embedded in or fixedly attached to the inner surface of at least one side wall of the electric control box 1, does not need additional installation space.

[0031] In addition, even if refrigerant leaks, due to the high volatility and low conductivity of refrigerant, will not cause electrical failure inside the electric control box 1.

[0032] In order to improve the cooling effect of capillary mechanism, in one embodiment, the capillary mechanism 2 includes a capillary tube in a continuous U-shaped meandering structure, one end of the capillary tube is connected with the valve mechanism, the other end of the capillary tube is connected with the inlet of the evaporator 6.

[0033] In another embodiment, the capillary mechanism 2 includes a capillary tube in a continuous planar spiral structure, one end of the capillary tube is connected with the valve mechanism, the other end of the capillary tube is connected with the inlet of the evaporator 6.

[0034] In another embodiment, the capillary mechanism 2 includes a plurality of parallel arranged capillary tubes, the first end of the plurality of capillary tubes is connected with the valve mechanism, the other end of the plurality of capillary tubes is connected with the inlet of the evaporator 6.

[0035] In further embodiments, the plurality of capillary tubes are in a linear type, a U-shaped type or an S-shaped type to ensure the flow effect of the refrigerant in the capillary tube, thereby improving the cooling effect.

[0036] Specifically, the capillary tube is a copper capillary tube.

[0037] In the embodiment, a temperature sensor is further included, and the temperature sensor is arranged in the electric control box 1.

[0038] The temperature sensor is arranged to detect the temperature of the electric control box 1, and when the temperature of the electric control box 1 is greater than a preset temperature, the valve mechanism is opened, and the refrigerant enters the capillary mechanism 2 to cool the electric control box 1.

[0039] In a further embodiment, the valve mechanism is an electromagnetic valve, facilitating fast refrigeration by fast opening of the electromagnetic valve.

[0040] In a further embodiment, a controller is further included, and the electromagnetic valve and the temperature sensor are both electrically connected to the controller.

[0041] In this way, when the temperature of the electric control box 1 is greater than the preset temperature, the controller automatically controls the electromagnetic valve to open, and the refrigerant enters the capillary mechanism 2 to cool the electric control box 1, effectively improving the automation degree of temperature control.

[0042] It should be understood that the utility model is suitable for cooling of the electric control box 1 in the temperature control equipment of various vapor compression type circulating systems in refrigeration or heating modes, including but not limited to the electric control box 1 in vapor compression type temperature control equipment such as air-cooled air cooler, air-cooled water cooler, heat pump unit, and is widely applicable.

[0043] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art should be covered in the protection scope of the utility model within the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. Cooling device for an electric control box of a vapour compression refrigeration apparatus, characterized in that, The vapor compression refrigeration device further comprises a condenser (4), a compressor (5), an evaporator (6) and a throttling mechanism (7), the outlet of the compressor (5), the condenser (4), the throttling mechanism (7), the evaporator (6) and the inlet of the compressor (5) are sequentially connected to form a refrigeration circuit; The cooling device comprises a capillary mechanism (2) and a valve mechanism, the capillary mechanism (2) is used for being embedded in at least one side wall of the electric control box (1) or being fixedly attached to the inner surface of at least one side wall of the electric control box (1); The inlet of the capillary mechanism (2) is connected with the outlet of the condenser (4), the valve mechanism is connected between the inlet of the capillary mechanism (2) and the outlet of the condenser (4), and the outlet of the capillary mechanism (2) is connected with the inlet of the evaporator (6).

2. Cooling device for an electric control box of a vapour compression refrigeration apparatus according to claim 1, characterized in that, The capillary mechanism (2) comprises a capillary pipe in a continuous U-shaped meandering structure, one end of the capillary pipe is connected with the valve mechanism, and the other end of the capillary pipe is connected with the inlet of the evaporator (6).

3. Cooling device for an electric control box of a vapour compression refrigeration apparatus according to claim 1, characterized in that, The capillary mechanism (2) comprises a capillary pipe in a continuous planar spiral line structure, one end of the capillary pipe is connected with the valve mechanism, and the other end of the capillary pipe is connected with the inlet of the evaporator (6).

4. Cooling device for an electric control box of a vapour compression refrigeration apparatus according to claim 1, characterized in that, The capillary mechanism (2) comprises a plurality of capillary pipes arranged in parallel, the first ends of the plurality of capillary pipes are connected with the valve mechanism, and the other ends of the plurality of capillary pipes are connected with the inlet of the evaporator (6).

5. Cooling arrangement for an electric control box of a vapour compression refrigeration apparatus according to claim 4, characterized in that The plurality of capillary pipes are in a linear type, a U-shaped type or an S-shaped type.

6. Cooling arrangement for an electric control box of a vapour compression refrigeration apparatus according to claim 1, characterized in that A temperature sensor is further included, and the temperature sensor is used for being installed in the electric control box (1).

7. Cooling arrangement for an electric control box of a vapour compression refrigeration apparatus according to claim 6, characterized in that The valve mechanism is an electromagnetic valve.

8. Cooling arrangement for an electric control box of a vapour compression refrigeration apparatus according to claim 7, characterized in that A controller is further included, and the electromagnetic valve and the temperature sensor are electrically connected with the controller.

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