Water chiller

Abstract

The utility model discloses a cooling-water machine which comprises a machine shell, and an installation cavity is formed in the machine shell. The water tank is provided with a heat exchange pipe; the water tank is provided with a water return connector and a water outlet connector, and the water return connector and the water outlet connector are used for being communicated with a pipeline of external equipment. The refrigeration assembly is mounted in the mounting cavity; the refrigeration assembly comprises a compressor, a condenser, a drying filter and a capillary tube, an outlet of the compressor is communicated with an inlet of the condenser, an outlet of the condenser is communicated with an inlet of the drying filter, an outlet of the drying filter is communicated with one end of the capillary tube, and the other end of the capillary tube is communicated with one end of the heat exchange tube. The other end of the heat exchange pipe communicates with an inlet of the compressor. According to the cooling-water machine, the water tank is arranged in the machine body, water flow in the water tank continuously brings heat generated by heating equipment and absorbed by the cold plate into the cooling-water machine, and the heat exchange and refrigeration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, in particular to a water chiller. Background Art

[0002] At present, with the rapid development of contemporary electronic technology, the integration level and assembly density of electronic components are constantly improving. While providing powerful functions, it also leads to a sharp increase in their working power consumption and heat generation. High temperature will have a harmful effect on the stability, reliability and life of electronic components. For example, too high temperature will endanger the junction of semiconductors, damage the connection interface of circuits, increase the resistance of conductors and cause mechanical stress damage.

[0003] Therefore, ensuring that the heat generated by heat-generating electronic components can be discharged in a timely manner has become an important aspect of the assembly of microelectronic product systems. Therefore, it is necessary to ensure high precision, larger cooling capacity and higher temperature control accuracy.

[0004] At present, there are two types of equipment commonly used for cooling in semiconductor manufacturing, optical equipment, new energy and other industries: semiconductor refrigerators and water chillers:

[0005] The existing chillers mainly use compressors to compress the refrigerant inside, increase the temperature and pressure, and form a gas that enters the condenser. The heat of the refrigerant is released through air cooling to form a low-temperature and high-pressure liquid that enters the evaporator through the capillary tube. The evaporator exchanges heat with the laser, and the heat-absorbing refrigerant is vaporized and returns to the compressor for the next cycle. The compression chiller has the characteristics of high precision, high refrigeration efficiency, reliable performance, and long life, but in principle, it uses a series of devices to cool down, which accordingly requires a very large space and increases the mass. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a water chiller, which arranges a water tank inside the machine body, and the water flow in the water tank continuously brings the heat generated by the heating device absorbed by the cold plate into the water chiller, thereby improving the heat exchange and refrigeration efficiency.

[0007] The purpose of the utility model is achieved by the following technical solutions:

[0008] A water chiller, comprising:

[0009] A casing, wherein a mounting cavity is provided in the casing;

[0010] A water tank, wherein the water tank is provided with a heat exchange pipe; the water tank is provided with a return water interface and a water outlet interface, and the return water interface and the water outlet interface are both used to communicate with the pipeline of the external equipment;

[0011] A refrigeration component, which is installed in the installation cavity; the refrigeration component includes a compressor, a condenser, a drying filter and a capillary tube, the outlet of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the drying filter, the outlet of the drying filter is connected to one end of the capillary tube, the other end of the capillary tube is connected to one end of the heat exchange tube, and the other end of the heat exchange tube is connected to the inlet of the compressor.

[0012] Furthermore, a heating component is provided in the water tank, and the heating component is used to heat the water in the water tank; the heating component is a heating rod.

[0013] Furthermore, a temperature detector is provided in the water tank, and the temperature detector is used to detect the water temperature in the water tank.

[0014] Furthermore, the water return interface is provided with a flow meter, and the flow meter is used to detect the water flow introduced by the water return interface; the water tank is provided with a water level meter; the water level meter is used to detect the water level in the water tank.

[0015] Furthermore, the housing further comprises a heat dissipation fan, the air inlet of which is arranged toward the condenser and is used for guiding the heat of the condenser to be discharged out of the installation cavity.

[0016] Furthermore, the casing includes a back panel and a side panel, the side panel is connected to the side of the back panel, the back panel is provided with an air outlet; the side panel is provided with an air inlet; the cooling fan is installed on the back panel, and the condenser is installed on the side panel.

[0017] Furthermore, the side plate is provided with a plurality of honeycomb holes; the honeycomb holes are formed as the air inlet.

[0018] Furthermore, the casing also includes an end plate opposite to the back plate, and the side plates are connected between the back plate and both sides of the end plate; a circuit control main board is provided on the end plate; a leakage protection switch is provided on the outer side of the end plate, and the leakage protection switch is electrically connected to the circuit control board.

[0019] Furthermore, a connecting piece bent inwardly is provided at the top end of the side plate, and the top end of the condenser is connected and fixed to the connecting piece.

[0020] Furthermore, a water pump is provided in the installation cavity; the water pump is connected to the water tank.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] Heat-generating equipment such as semiconductor manufacturing equipment and lasers transfer heat to the water circulating through the cold plate. The water flow brings the heat to the heat exchanger and transfers it to the refrigerant. The refrigerant brings the heat to the condenser and finally dissipates it into the environment. The combination of heat exchange tubes and water tanks ensures that the water tank capacity can provide sufficient cold water for cooling, thereby improving the cooling efficiency of external equipment. At the same time, the water in the water tank exchanges with the refrigerant in the disc-shaped heat exchange tubes, exchanging heat over the largest area, improving the heat exchange efficiency of the refrigeration system and reducing the volume of the heat exchanger.

[0023] In addition, the refrigeration components, water tank, etc. are integrated in the installation cavity inside the casing, and the structure inside the casing equipment is compact, thus realizing the advantages of the chiller with small size, light weight and sufficient cooling capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall external structure of the chiller of the utility model;

[0025] Figure 2 It is a schematic diagram of the overall exterior structure of the chiller of the utility model from another perspective;

[0026] Figure 3 It is a schematic diagram of the internal exploded structure of the chiller of the utility model;

[0027] Figure 4 This is a schematic diagram of the internal decomposition structure of the chiller of the utility model from another perspective.

[0028] In the figure: 10, casing; 11, end plate; 12, side panel; 121, air inlet; 122, connecting plate; 13, back panel; 131, air outlet; 21, compressor; 22, condenser; 23, cooling fan; 31, water tank; 311, heating rod; 312, water level gauge; 32, water pump; 41, leakage switch; 42, circuit control main board. DETAILED DESCRIPTION

[0029] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 A chiller shown includes a casing 10, a water tank 31 and a refrigeration assembly. An installation cavity is provided in the casing 10, the water tank 31 is provided with a heat exchange pipe, and a return water interface and a water outlet interface are provided on the water tank 31. The return water interface and the water outlet interface can be connected to the pipeline of an external device.

[0033] The specific refrigeration component is installed in the installation cavity; the refrigeration component includes a compressor 21, a condenser 22, a drying filter and a capillary tube. The outlet of the compressor 21 is connected to the inlet of the condenser 22, the outlet of the condenser 22 is connected to the inlet of the drying filter, the outlet of the drying filter is connected to one end of the capillary tube, the other end of the capillary tube is connected to one end of the heat exchange tube, and the other end of the heat exchange tube is connected to the inlet of the compressor 21.

[0034] On the basis of the above structure, when using the chiller of the utility model, during refrigeration, the compressor 21 is connected to the condenser 22, the condenser 22 is connected to the drying filter, the drying filter is connected to the capillary tube, the capillary tube can be a capillary copper tube in the prior art, and the capillary tube is connected to the heat exchange tube formed by the annular copper tube in the water tank 31. The other end of the heat exchange tube in the water tank 31 extends out of the water tank 31 and is connected to the compressor 21, forming a refrigerant closed circuit, and the refrigerant circulates in the closed circuit.

[0035] In addition, the water outlet interface on the water tank 31 is connected to one end of the cooling pipeline of the external heating equipment (such as semiconductor manufacturing equipment, laser, etc.), and the other end of the cooling pipeline is connected to the return water interface of the water tank 31. In this way, the water pipe is used to supply water circulation, and the refrigerant in the heat exchange tube in the water tank 31 exchanges heat with the water returning to the water tank 31.

[0036] In the refrigeration system, the refrigerant circulates between the compressor 21, the condenser 22, the filter drier, the capillary copper tube and the heat exchange tube in the water tank 31 under the action of the compressor 21. The compressor 21 compresses the low-temperature and low-pressure refrigerant into high-temperature and high-pressure steam. In the condenser 22, the heat of the gaseous refrigerant is dissipated to the environment, thereby condensing into a low-temperature and high-pressure liquid. The filter drier filters the moisture and impurities in the refrigerant to protect the refrigeration module. The capillary tube reduces the pressure of the low-temperature and high-pressure liquid refrigerant to prepare for evaporation and enter the heat exchange tube of the water tank. Here, due to the sudden increase in space, the liquid refrigerant will quickly evaporate into a gaseous state, while absorbing a large amount of heat and exchanging heat with the water in the water tank 31. After the water temperature in the water tank 31 is reduced, it flows through the water outlet interface to the cooling pipeline of the external heating equipment (such as semiconductor manufacturing equipment, laser, etc.). After the cooling water in the cooling pipeline absorbs the heat, it takes away the heat, thereby achieving the purpose of cooling. The cooled water flows back to the water tank 31 through the return water interface of the water tank 31, undergoes heat exchange and cooling, and then starts the next cycle.

[0037] The refrigeration process of the whole set of equipment is that semiconductor manufacturing equipment, lasers and other heat-generating equipment transfer heat to the water circulating through the cold plate, the water flow brings the heat to the heat exchanger and transfers it to the refrigerant, the refrigerant brings the heat to the condenser 22 and finally dissipates it into the environment. The heat exchange tube is combined with the water tank 31 to ensure that the capacity of the water tank 31 can provide sufficient cold water for cooling, thereby improving the cooling efficiency of external equipment. At the same time, the water in the water tank 31 exchanges with the refrigerant in the disc-shaped heat exchange tube, and heat is exchanged over the maximum area, which improves the heat exchange efficiency of the refrigeration system and reduces the volume of the heat exchanger.

[0038] It should be noted that the above-mentioned capillary tube is specifically a capillary copper tube in the prior art, and the compressor 21 is a miniature regulated DC compressor 21; and the above-mentioned compressor 21, drying filter and capillary copper tube are all commonly used devices for refrigeration in the prior art, and their specific working principles and structures do not belong to the technical content to be protected by this application, and will not be described in detail here.

[0039] Furthermore, in the present embodiment, a heating component is provided in the water tank 31, and the heating component can heat the water in the water tank 31. Specifically, the heating component is a heating rod 311, and can also be implemented by a heating coil or a heating resistor.

[0040] When the water temperature needs to be increased, the water in the water tank 31 can be heated by the heating rod 311, which plays a role in heating and heating. The specific user can control the water temperature in the water tank 31 according to the actual required water temperature of the cooling water. The heating rod 311 heats the water temperature in the water tank 31 to play a role in temperature compensation, which plays an auxiliary role in precise temperature control.

[0041] Specifically, a temperature detector can be set in the water tank 31. The temperature detector can be realized by a temperature sensor. The water temperature in the water tank 31 can be detected by the temperature detector. When the water temperature detected by the temperature detector is higher than the set temperature, the speed of the compressor 21 is increased, the cooling capacity is increased, and the water temperature is reduced; when the water temperature detected by the temperature detector is lower than the set temperature, the speed of the compressor 21 is reduced, the cooling capacity is reduced, and the water temperature is increased.

[0042] Furthermore, the return water interface is provided with a flow meter, which is used to detect the water flow introduced by the return water interface, so that the flow entering the water tank 31 can be monitored by the flow meter, and a water level meter 312 is provided in the water tank 31; the water level meter 312 is used to detect the water level in the water tank 31. The liquid level in the water tank 31 is monitored by the water level meter 312, which plays an automatic protection role when the working liquid level is too low, and water replenishment can be conveniently and timely.

[0043] Of course, a drainage interface can also be set at the bottom of the water tank, which is connected to the drain pipe through the drainage interface and can be used to discharge the water in the water tank, making it convenient for regular cleaning.

[0044] Furthermore, in this embodiment, a water pump 32 can be arranged in the installation cavity, and the water pump 32 can be connected to the water tank 31, so that the water pump 32 can work to replenish water in the water tank 31, and the water pump 32 can be started and stopped according to the detection results of the flow meter and the water level meter 312, so that the water volume and water level in the water tank 31 can be better controlled.

[0045] Furthermore, the above-mentioned casing 10 also includes a cooling fan 23, and the air inlet 121 of the cooling fan 23 is set toward the condenser 22, and is used to guide the heat of the condenser 22 to be discharged out of the installation cavity. In this way, by setting the cooling fan 23 in the casing 10, when cooling is performed, the heat of the condenser 22 is guided to be discharged out of the installation cavity through the cooling fan 23, and the gaseous refrigerant in the condenser 22 dissipates the heat to the environment under the action of the fan, thereby improving efficiency.

[0046] Furthermore, the casing 10 may also include a back panel 13 and a side panel 12, wherein the side panel 12 is connected to the side of the back panel 13, and an air outlet 131 is provided on the back panel 13; an air inlet 121 is provided on the side panel 12; a cooling fan 23 is installed on the back panel 13, and a condenser 22 is installed on the side panel 12, so that when the heat of the condenser 22 is guided and dissipated, the cooling fan 23 can be started, and the external airflow can be introduced through the air inlet 121 on the side panel 12, and then the airflow flows the heat on the surface of the condenser 22, and then the cooling fan 23 guides the heat to be discharged through the air outlet 131.

[0047] More specifically, the side plate 12 is provided with a plurality of honeycomb holes, which are formed as air inlets 121 . The plurality of honeycomb holes can guide the condenser 22 to dissipate heat evenly.

[0048] Furthermore, the housing 10 further includes an end plate 11 opposite to the back plate 13, and side plates 12 are connected between the back plate 13 and both sides of the end plate 11. A circuit control mainboard 42 is provided on the end plate 11, and the circuit control mainboard 42 can integrate the working circuits of the electrical components such as the cooling fan 23, the water level meter 312, the flow meter, the compressor 21, the temperature detector, and the water pump 32, so as to facilitate centralized control. In addition, a leakage protection switch can be provided on the outer side of the end plate 11, and the leakage protection switch is electrically connected to the circuit control board, so that leakage protection can be performed.

[0049] It should be noted that the casing in this embodiment includes a back panel, an end panel, two side panels, a top panel and a bottom panel. The edges of two adjacent panels are connected and fixed with screws by a frame, which plays a role in connection and positioning, and also plays a role in supporting and bearing the internal components.

[0050] Furthermore, the top of the side panel 12 is provided with a connecting piece 122 bent inwardly, and the top of the condenser 22 is connected and fixed to the connecting piece 122. In this way, when the condenser 22 is installed, the top of the condenser 22 and the connecting piece 122 are assembled by screws, bolts and other structures, which facilitates the stable disassembly and assembly of the condenser 22.

[0051] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A water chiller, characterized in that: include, A casing, wherein a mounting cavity is provided in the casing; A water tank, wherein the water tank is provided with a heat exchange pipe; the water tank is provided with a return water interface and a water outlet interface, and the return water interface and the water outlet interface are both used to communicate with the pipeline of the external equipment; A refrigeration component, which is installed in the installation cavity; the refrigeration component includes a compressor, a condenser, a drying filter and a capillary tube, the outlet of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the drying filter, the outlet of the drying filter is connected to one end of the capillary tube, the other end of the capillary tube is connected to one end of the heat exchange tube, and the other end of the heat exchange tube is connected to the inlet of the compressor.

2. The water chiller according to claim 1, characterized in that: A heating component is arranged in the water tank, and the heating component is used to heat the water in the water tank; the heating component is a heating rod.

3. The water chiller according to claim 2, characterized in that: A temperature detector is arranged in the water tank, and the temperature detector is used to detect the water temperature in the water tank.

4. The water chiller according to claim 1, characterized in that: The return water interface is provided with a flow meter, and the flow meter is used to detect the water flow introduced by the return water interface; the water tank is provided with a water level meter; the water level meter is used to detect the water level in the water tank.

5. The water chiller according to any one of claims 1 to 4, characterized in that: The housing further comprises a heat dissipation fan, the air inlet of which is arranged toward the condenser and is used for guiding the heat of the condenser to be discharged out of the installation cavity.

6. The water chiller according to claim 5, characterized in that: The housing includes a back panel and a side panel, wherein the side panel is connected to the side of the back panel, and an air outlet is arranged on the back panel; an air inlet is arranged on the side panel; the cooling fan is installed on the back panel, and the condenser is installed on the side panel.

7. The water chiller according to claim 6, characterized in that: The side plate is provided with a plurality of honeycomb holes; the honeycomb holes form the air inlet.

8. The water chiller according to claim 6, characterized in that: The housing also includes an end plate opposite to the back plate, and the side plates are connected between the back plate and both sides of the end plate; a circuit control main board is arranged on the end plate; a leakage protection switch is arranged on the outer side of the end plate, and the leakage protection switch is electrically connected to the circuit control main board.

9. The water chiller according to claim 6, characterized in that: The top end of the side plate is provided with a connecting piece bent inwardly, and the top end of the condenser is connected and fixed to the connecting piece.

10. The water chiller according to any one of claims 1 to 4, characterized in that: A water pump is arranged in the installation cavity; the water pump is communicated with the water tank.

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