CN218920815U - Radiator and variable frequency air conditioning system - Google Patents

Abstract

The application relates to the technical field of refrigeration, in particular to a radiator and a variable frequency air conditioning system. The radiator comprises a radiating substrate, a water heat exchange flow path and a refrigerant heat exchange pipe, wherein at least part of the water heat exchange flow path is arranged in the radiating substrate; at least part of the refrigerant heat exchange tubes penetrate through the heat dissipation substrate, and at least part of the refrigerant heat exchange tubes are arranged in the water heat exchange flow path; the cooling water in the water heat exchange flow path can exchange heat with the refrigerant in the refrigerant heat exchange pipe and the heat dissipation substrate respectively. The application has the advantages that: by arranging the water heat exchange flow path and arranging the refrigerant heat exchange pipe part in the water heat exchange flow path, the refrigerant in the refrigerant heat exchange pipe can be cooled by the cooling water flowing in the water heat exchange flow path, and the temperature of the refrigerant can be reduced, so that the refrigerating performance of the variable-frequency air conditioner system is improved.

Description

Radiator and variable frequency air conditioning system

Technical Field

The application relates to the technical field of refrigeration, in particular to a radiator and a variable frequency air conditioning system.

Background

The variable frequency air conditioner is an air conditioner with a frequency converter, wherein the frequency converter is used for controlling and adjusting the rotating speed of the compressor, so that the compressor is always in an optimal rotating speed state, the energy efficiency ratio is improved, and the energy saving effect is achieved.

The air conditioner frequency converter mainly dissipates heat through a radiator, the existing radiator is connected to a heat exchange circulation path of an air conditioning system, and cooling and temperature control of the air conditioner frequency converter are achieved through a refrigerant in the heat exchange circulation path. However, the use of the refrigerant at the radiator causes the temperature of the refrigerant in the air conditioning system to rise, so that the refrigerating capacity of the air conditioner is reduced, and the refrigerating performance of the air conditioning system is affected.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a radiator and a variable frequency air conditioning system capable of reducing the temperature of a refrigerant.

A heat sink, comprising: a heat-dissipating substrate; a water heat exchange flow path, at least part of which is arranged in the heat dissipation substrate; the refrigerant heat exchange tube at least partially penetrates through the heat dissipation substrate, and at least partially is arranged in the water heat exchange flow path; the cooling water in the water heat exchange flow path can exchange heat with the refrigerant in the refrigerant heat exchange tube and the heat dissipation substrate respectively.

It can be understood that the application is through setting up the water heat transfer flow path to place refrigerant heat exchange tube part in the water heat transfer flow path, can rely on the cooling water who flows in the water heat transfer flow path to cool off the refrigerant in the refrigerant heat exchange tube, can reduce refrigerant temperature, thereby improve variable frequency air conditioning system's refrigeration performance.

In one embodiment, the refrigerant heat exchange tube includes: the first communication pipe at least partially penetrates through two ends of the heat dissipation substrate; the second communicating pipe at least partially penetrates through two ends of the radiating substrate; the first bending pipe is positioned outside the radiating substrate, positioned at the same end of the first communicating pipe and the second communicating pipe and communicated with the first communicating pipe and the second communicating pipe respectively.

By the arrangement, the refrigerant heat exchange pipe and the water heat exchange flow path have larger contact area, and the temperature of the refrigerant is further reduced.

In one embodiment, the heat sink further comprises: the water heat exchange tube at least partially penetrates through the heat dissipation substrate and is connected with the heat dissipation substrate, and the water heat exchange flow path is formed in the water heat exchange tube; the refrigerant heat exchange tube is at least partially arranged in the water heat exchange tube and is connected with the water heat exchange tube.

By this arrangement, the cooling water can circulate in the radiator.

In one embodiment, the water heat exchange tube comprises: the input pipe at least partially penetrates through two ends of the heat dissipation substrate; at least part of the output pipe penetrates through two ends of the radiating substrate; the second bending pipe is positioned outside the heat dissipation substrate, positioned at the same end of the input pipe and the output pipe and connected with the input pipe and the output pipe respectively; at least part of the first communicating pipe is positioned in the input pipe, the first bending pipe is positioned in the second bending pipe, and at least part of the second communicating pipe is positioned in the output pipe.

By the arrangement, the water heat exchange tube, the refrigerant heat exchange tube and the heat dissipation substrate have larger contact areas, and the temperatures of the refrigerant and the heat dissipation substrate are further reduced.

In one embodiment, the heat sink further comprises: the first connecting pipe is positioned at one end of the input pipe far away from the second bending pipe and is communicated with the input pipe; the second connecting pipe is positioned at one end of the output pipe far away from the second bending pipe and is communicated with the output pipe; the included angle between the central axis of the first connecting pipe and the central axis of the input pipe is A1, the included angle between the central axis of the second connecting pipe and the central axis of the output pipe is A2, A1 is more than or equal to 0 degree and less than or equal to 90 degrees, and A2 is more than or equal to 0 degree and less than or equal to 90 degrees.

By the arrangement, the cooling water can flow in or out, and has a good flowing direction.

In one embodiment, the heat dissipation substrate is provided with a first water channel and a second water channel penetrating through two ends of the heat dissipation substrate, the heat dissipation device further comprises a second bent pipe, the second bent pipe is located outside the heat dissipation substrate, and the second bent pipe is located at the same end of the first water channel and the second water channel and is connected with the first water channel and the second water channel respectively; the first water channel, the second water channel and the second bent pipe form the water heat exchange flow path; at least part of the first communicating pipe is positioned in the first water channel, the first bent pipe is positioned in the second bent pipe, and at least part of the second communicating pipe is positioned in the second water channel.

By the arrangement, the cooling water can exchange heat with the heat dissipation substrate better.

In one embodiment, the heat sink further comprises: the third connecting pipe is positioned at one end of the radiating substrate, which is far away from the second elbow pipe, and is communicated with the first water channel; the fourth connecting pipe is positioned at one end of the radiating substrate, which is far away from the second elbow pipe, and is communicated with the second water channel; the central axis of the third connecting pipe is parallel to the central axis of the fourth connecting pipe.

So set up, the cooling water of being convenient for directly flows in or flows out first water course and second water course.

In one embodiment, a first water channel, a second water channel and at least one branch channel are formed in the heat dissipation substrate, the first water channel and the second water channel are arranged at intervals, and the branch channel is located between the first water channel and the second water channel and is respectively communicated with the first water channel and the second water channel; the first water channel, the second water channel and the side channel form the water heat exchange flow path; at least part of the first communicating pipe is positioned in the first water channel, and at least part of the second communicating pipe is positioned in the second water channel.

By the arrangement, the material consumption can be reduced, and the cost is reduced.

In one embodiment, the side walls of the first water channel and the second water channel are provided with a plurality of heat exchange protrusions arranged at intervals.

By the arrangement, the heat exchange effect of the cooling water and the heat dissipation substrate or the refrigerant can be further enhanced.

The application also provides a variable frequency air conditioning system, including foretell radiator, variable frequency air conditioning system still includes: the heat exchange circulating path comprises a first heat exchanger, and the radiator and the first heat exchanger are arranged on the heat exchange circulating path in series; the two ends of the main waterway are respectively communicated with the first heat exchanger and the radiator, and condensed water of the first heat exchanger can flow into the main waterway and flow into the water heat exchange flow path through the main waterway; when the variable frequency air conditioning system is in a first state, the flow direction of the refrigerant in the refrigerant heat exchange tube is opposite to that of the cooling water in the water heat exchange flow path; when the variable frequency air conditioning system is in the second state, the cooling water in the cooling medium heat exchange pipe and the cooling water in the water heat exchange flow path flow in the same direction.

In one embodiment, the main waterway includes a liquid storage tank, the condensed water of the first heat exchanger can flow into the liquid storage tank, and the variable frequency air conditioning system further includes: and one end of the water supply channel is connected with the main water channel, the water supply channel comprises a reservoir, and cooling water in the reservoir can flow into the liquid storage tank through the water supply channel.

The cooling water in the liquid storage tank is continuously supplemented through the water supply channel, so that the heat exchange requirement of the radiator can be met.

In one embodiment, the variable frequency air conditioning system further comprises: the collecting waterway can be respectively communicated with the water heat exchange flow path and the reservoir; and the water supplementing waterway is communicated with the reservoir.

By the arrangement, effective utilization of resources can be realized.

In one embodiment, the collecting waterway includes: one end of the first branch is connected with the water heat exchange flow path, the first branch comprises a filter, a disinfection tank and a first water pump, and cooling water flowing out of the water heat exchange flow path can sequentially pass through the filter, the disinfection tank and the first water pump; the second branch is connected with the first branch and the reservoir respectively; and the third branch is connected with the first branch and comprises a water storage tank, and cooling water of the first branch can flow into the water storage tank.

By means of the arrangement, water temperature control in the reservoir can be achieved, and energy can be converted favorably.

Compared with the prior art, the radiator and the variable frequency air conditioning system provided by the application are provided with the water heat exchange flow path, and the refrigerant heat exchange pipe is partially arranged in the water heat exchange flow path, so that the refrigerant in the refrigerant heat exchange pipe can be cooled by the cooling water flowing in the water heat exchange flow path, the temperature of the refrigerant can be reduced, and the refrigerating performance of the variable frequency air conditioning system is improved.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a heat sink according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a heat sink according to the first embodiment.

Fig. 3 is a cross-sectional view of a heat sink of the second embodiment.

Fig. 4 is a cross-sectional view of a heat sink of the third embodiment.

Fig. 5 is a cross-sectional view of a heat sink of the fourth embodiment.

Fig. 6 is a schematic diagram of a variable frequency air conditioning system provided in the present application.

The symbols in the drawings are as follows:

100. a variable frequency air conditioning system; 10. a heat sink; 11. a heat-dissipating substrate; 111. a first waterway; 112. a second waterway; 113. a branch flow passage; 114. a heat exchange bulge; 12. a water heat exchange flow path; 13. a refrigerant heat exchange tube; 131. a first communication pipe; 132. a second communicating pipe; 133. a first bend; 14. a water heat exchange tube; 141. an input tube; 142. an output pipe; 143. a second bent pipe; 15. a first connection pipe; 16. a second connection pipe; 17. a third connection pipe; 18. a fourth connection pipe; 20. a heat exchange circulation path; 21. a first heat exchanger; 22. a compressor; 23. a second heat exchanger; 24. a switching valve; 25. a throttle valve; 30. a main waterway; 31. a liquid storage tank; 40. a supply waterway; 41. a reservoir; 42. a second water pump; 50. collecting a waterway; 51. a first branch; 511. a filter; 512. a sterilizing pool; 513. a first water pump; 52. a second branch; 521. a first valve; 53. a third branch; 531. a water storage tank; 532. a second valve; 60. a water replenishing waterway; 61. and a third water pump.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used in the description of the present application for purposes of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a radiator 10 is provided, and is mainly applied to a variable frequency air conditioning system 100 for cooling a frequency converter (not shown). Of course, the heat sink 10 may also be used in other situations where it is desirable to cool a device.

The air conditioner frequency converter mainly dissipates heat through a radiator, the existing radiator is connected to a heat exchange circulation path of an air conditioning system, and cooling and temperature control of the air conditioner frequency converter are achieved through a refrigerant in the heat exchange circulation path. However, the use of the refrigerant at the radiator causes the temperature of the refrigerant in the air conditioning system to rise, so that the refrigerating capacity of the air conditioner is reduced, and the refrigerating performance of the air conditioning system is affected.

Referring to fig. 1-5, the present application provides a heat sink 10, wherein the heat sink 10 includes a heat dissipating substrate 11, a water heat exchanging channel 12 and a refrigerant heat exchanging tube 13, and at least a portion of the water heat exchanging channel 12 is disposed in the heat dissipating substrate 11. At least part of the refrigerant heat exchange tubes 13 penetrate through the heat dissipation substrate 11, and at least part of the refrigerant heat exchange tubes 13 are installed in the water heat exchange flow path 12. The cooling water in the water heat exchange flow path 12 can exchange heat with the refrigerant in the refrigerant heat exchange tube 13 and the heat radiation substrate 11, respectively.

In the present application, by providing the water heat exchange flow path 12 and partially disposing the refrigerant heat exchange pipe 13 in the water heat exchange flow path 12, the refrigerant in the refrigerant heat exchange pipe 13 can be cooled by the cooling water flowing in the water heat exchange flow path 12, and the temperature of the refrigerant can be reduced, thereby improving the cooling performance of the variable frequency air conditioning system 100.

Meanwhile, the cooling water can cool the frequency converter, and under the same condition, the cooling capacity of the refrigerant is poorer than that of the cooling water. In the existing structure, the temperature of the refrigerant entering the radiator cannot be accurately controlled under the influence of an air conditioning system, so that the overtemperature risk of the frequency converter is increased, and particularly under the condition that the air conditioning system operates at the limit, the temperature of the refrigerant and the temperature of the frequency converter are increased simultaneously, and the overtemperature risk of the frequency converter is large. In this application, through utilizing the cooling water to cool off, not only the cooling effect to the converter is better, has avoided the phenomenon emergence that leads to refrigerant temperature to rise owing to refrigerant cooling in the traditional radiator moreover.

The water heat exchange flow path 12 is arranged outside the refrigerant heat exchange tube 13, so that the cooling water is well separated from the heat dissipation substrate 11 and the refrigerant, and the radiator 10 can simultaneously meet the requirements of the refrigerant and the cooling of the frequency converter. In other embodiments, the water heat exchange flow path 12 may be disposed in the refrigerant heat exchange tube 13, so that the refrigerant and the inverter can be cooled to some extent.

Referring to fig. 2, the refrigerant heat exchange tube 13 includes a first communication tube 131, a second communication tube 132, and a first bent tube 133, at least a portion of the first communication tube 131 penetrates through two ends of the heat dissipation substrate 11; at least part of the second communication tube 132 penetrates through both ends of the heat dissipation substrate 11; the first bent pipe 133 is located outside the heat dissipating substrate 11, and the first bent pipe 133 is located at the same end of the first communication pipe 131 and the second communication pipe 132 and is respectively communicated with the first communication pipe 131 and the second communication pipe 132.

Specifically, in one embodiment, the refrigerant heat exchange tube 13 is substantially U-shaped. In this way, the first bend pipe 133 can realize the steering of the refrigerant, so that the refrigerant heat exchange pipe 13 and the water heat exchange flow path 12 can have a larger contact area, and the temperature of the refrigerant can be further reduced. In other embodiments, the refrigerant heat exchange tube 13 may be selected from other shapes according to practical needs, for example, the refrigerant heat exchange tube 13 may be W-shaped, so long as the same effect can be achieved.

Example 1

Referring to fig. 1 and 2, the heat sink 10 further includes a water heat exchange tube 14. At least part of the water heat exchange tube 14 penetrates through the heat dissipation substrate 11 and is connected with the heat dissipation substrate 11, and a water heat exchange flow path 12 is formed in the water heat exchange tube 14; the refrigerant heat exchange tube 13 is at least partially installed in the water heat exchange tube 14 and is connected with the water heat exchange tube 14.

Specifically, a water heat exchange flow path 12 is formed between the inner wall of the water heat exchange tube 14 and the outer wall of the refrigerant heat exchange tube 13. By providing the water heat exchange pipe 14, circulation of cooling water in the radiator 10 can be achieved. The pipe orifices of the refrigerant heat exchange pipe 13 and the water heat exchange pipe 14 can be connected through welding, expansion joint or threads and other processes, so that the relative fixing of the positions of the refrigerant heat exchange pipe 13 and the water heat exchange pipe 14 is realized, and the phenomenon that the working performance of the radiator 10 is influenced due to the fact that the part of the refrigerant heat exchange pipe 13 in the water heat exchange pipe 14 moves is avoided. Meanwhile, better sealing performance can be realized, so that the cooling water flows along a specified path in the water heat exchange tube 14, and leakage of the cooling water is avoided.

Further, the water heat exchange tube 14 and the heat dissipation substrate 11 may be connected by welding, expansion or threading, so as to fix the water heat exchange tube 14.

In one embodiment, the water heat exchange tube 14 and the refrigerant heat exchange tube 13 are made of aluminum. Thus, the heat-conducting material has better heat-conducting property. In other embodiments, the water heat exchange tube 14 and the refrigerant heat exchange tube 13 may be steel or other materials with good heat conductivity.

Referring to fig. 2, the water heat exchange tube 14 includes an input tube 141, an output tube 142, and a second bent tube 143. At least part of the input pipe 141 penetrates through two ends of the heat dissipation substrate 11; at least part of the output pipe 142 penetrates through two ends of the heat dissipation substrate 11; the second bent pipe 143 is located outside the heat dissipating substrate 11, and the second bent pipe 143 is located at the same end of the input pipe 141 and the output pipe 142 and is connected to the input pipe 141 and the output pipe 142, respectively. At least a portion of the first communication pipe 131 is located in the input pipe 141, the first elbow 133 is located in the second elbow 143, and at least a portion of the second communication pipe 132 is located in the output pipe 142.

Specifically, in the present embodiment, the water heat exchange tube 14 and the refrigerant heat exchange tube 13 have the same shape and are all substantially U-shaped. In this way, the second bending pipe 143 can realize the diversion of the cooling water, so that a larger contact area can be formed between the water heat exchange pipe 14 and the refrigerant heat exchange pipe 13 as well as between the water heat exchange pipe and the heat dissipation substrate 11, and the temperature of the refrigerant and the heat dissipation substrate 11 can be further reduced. In other embodiments, the water heat exchange tube 14 may be changed according to the shape of the refrigerant heat exchange tube 13.

Referring to fig. 2, the heat sink 10 further includes a first connection pipe 15 and a second connection pipe 16. The first connecting pipe 15 is positioned at one end of the input pipe 141 far away from the second bending pipe 143 and is communicated with the input pipe 141; the second connecting pipe 16 is located at an end of the output pipe 142 away from the second bending pipe 143, and is in communication with the output pipe 142. Wherein, the included angle between the central axis of the first connecting pipe 15 and the central axis of the input pipe 141 is A1, the included angle between the central axis of the second connecting pipe 16 and the central axis of the output pipe 142 is A2, A1 is more than or equal to 0 degree and less than or equal to 90 degrees, A2 is more than or equal to 0 degree and less than or equal to 90 degrees.

Specifically, the first connection pipe 15 and the second connection pipe 16 may be respectively used as an inlet or an outlet of the water heat exchange flow path 12, or the first connection pipe 15 and the second connection pipe 16 may be respectively used as an outlet or an inlet of the water heat exchange flow path 12. Because the water heat exchange tube 14 and the refrigerant heat exchange tube 13 are correspondingly connected, the tube orifice of the water heat exchange tube 14 is correspondingly sealed, and therefore, cooling water can enter the water heat exchange tube 14 for heat exchange by arranging the first connecting tube 15 and the second connecting tube 16. And by setting the angle A1 to 90 degrees and the angle A2 to 90 degrees, the cooling water has better circulation direction when flowing in or out. I.e., when cooling water flows in, the cooling water can flow toward the inside of the water heat exchange tube 14, not toward the tube orifice, resulting in flow loss. When the cooling water flows out, the cooling water can directly flow out without changing the flow direction again, so that flow loss is caused. For example, A1 may have a size of 30 °, 40 °, 50 °, or 60 °, and A2 may have a size of 30 °, 40 °, 50 °, or 60 °.

When the size of A1 or A2 is 0 °, the first connection pipe 15 and the second connection pipe 16 are respectively located at the pipe orifice of the input pipe 141 or the output pipe 142, and are respectively connected to the water heat exchange pipe 14. When the size of A1 or A2 is not 0 °, the first connection pipe 15 and the second connection pipe 16 may be respectively located at the side wall of the input pipe 141 or the output pipe 142 and respectively communicate with the water heat exchange pipe 14.

Example two

Referring to fig. 3, the heat dissipation substrate 11 is provided with a first water channel 111 and a second water channel 112 penetrating through two ends of the heat dissipation substrate 11, the heat sink 10 further includes a second elbow pipe 143, the second elbow pipe 143 is located outside the heat dissipation substrate 11, and the second elbow pipe 143 is located at the same end of the first water channel 111 and the second water channel 112 and is connected with the first water channel 111 and the second water channel 112 respectively; the first water passage 111, the second water passage 112, and the second elbow 143 form the water heat exchange flow path 12. At least a portion of the first communicating pipe 131 is located in the first water channel 111, the first elbow 133 is located in the second elbow 143, and at least a portion of the second communicating pipe 132 is located in the second water channel 112.

In this embodiment, the first water channel 111 and the second water channel 112 are opened in the heat-dissipating substrate 11 without providing the water heat-exchanging pipe 14, and the second elbow 143 is used to connect the first water channel 111 and the second water channel 112, so that the cooling water in the water heat-exchanging channel 12 can directly contact with the heat-dissipating substrate 11, and the thermal resistance of the partition wall is reduced, thereby better exchanging heat with the heat-dissipating substrate 11 and better cooling the frequency converter.

With continued reference to fig. 3, the heat sink 10 further includes a third connecting pipe 17 and a fourth connecting pipe 18. The third connecting pipe 17 is positioned at one end of the heat radiating substrate 11 far away from the second bending pipe 143 and is communicated with the first water channel 111; the fourth connection pipe 18 is located at an end of the heat dissipation substrate 11 away from the second elbow pipe 143 and is communicated with the second water channel 112. Wherein the central axis of the third connecting pipe 17 is parallel to the central axis of the fourth connecting pipe 18.

Specifically, the third connecting pipe 17 and the fourth connecting pipe 18 serve as the inlet or outlet of the water heat exchange flow path 12 as well. The central axis of the third connecting pipe 17 is parallel to the central axis of the fourth connecting pipe 18, so that the cooling water can flow into or out of the first water channel 111 and the second water channel 112 directly.

Example III

Referring to fig. 4, the structure of the present embodiment is substantially the same as that of the second embodiment, and the same points are not repeated, except that:

the heat dissipation substrate 11 is internally provided with a first water channel 111, a second water channel 112 and at least one branch channel 113, wherein the first water channel 111 and the second water channel 112 are arranged at intervals, and the branch channel 113 is positioned between the first water channel 111 and the second water channel 112 and is respectively communicated with the first water channel 111 and the second water channel 112; the first water channel 111, the second water channel 112, and the branch flow channel 113 form the water heat exchange flow path 12; wherein, at least part of the first communicating pipe 131 is located in the first water channel 111, and at least part of the second communicating pipe 132 is located in the second water channel 112.

By providing the branch flow passage 113, the provision of the second bent pipe 143 can be canceled, and thus the material consumption can be reduced and the cost can be reduced. To further reduce the processing difficulty, the heat dissipation substrate 11 may be divided into an upper substrate and a lower substrate, so that the processing of the inner branch channel 113 or the first water channel 111 and the second water channel 112 is facilitated. The upper substrate and the lower substrate can be fixedly connected through bolts or welded, and the upper substrate and the lower substrate are not limited in the specification.

In one embodiment, the branch flow channel 113 is one and is respectively communicated with the first water channel 111 and the second water channel 112, so that the cooling water flows in the first water channel 111 and the second water channel 112. In another embodiment, the plurality of branch channels 113 are distributed at intervals along the length direction of the heat dissipation substrate 11, so that a larger heat exchange area is provided between the water heat exchange flow path 12 and the heat dissipation substrate 11, and the heat exchange effect is better.

Example IV

Referring to fig. 5, the structure of the present embodiment is substantially the same as that of the third embodiment, and the same points are not repeated, except that:

the side walls of the first water channel 111 and the second water channel 112 are respectively provided with a plurality of heat exchanging protrusions 114 which are arranged at intervals. The heat exchange protrusions 114 can enhance the turbulence degree of the cooling water in the water heat exchange flow path 12, thereby further enhancing the heat exchange effect of the cooling water and the heat dissipation substrate 11 or the refrigerant. In an embodiment, the heat exchanging protrusions 114 are formed by protruding the heat dissipating substrate 11 toward the central axes of the first water channel 111 and the second water channel 112, respectively, and the heat exchanging protrusions 114 and the heat dissipating substrate 11 are integrally formed, so that the heat dissipating substrate 11 has high structural strength. In another embodiment, the heat exchanging protrusions 114 and the heat dissipating substrate 11 may be separately disposed and fixedly connected.

Further, the heat exchanging protrusions 114 can be applied to the second embodiment, so as to further enhance the heat exchanging effect of the cooling water.

Referring to fig. 6, the present application further provides a variable frequency air conditioning system 100, including the radiator 10 described above. The variable frequency air conditioning system 100 further includes a heat exchange circulation path 20 and a main water path 30. The heat exchange circulation path 20 includes a first heat exchanger 21, and the radiator 10 and the first heat exchanger 21 are arranged on the heat exchange circulation path 20 in series; both ends of the main water path 30 are respectively communicated with the first heat exchanger 21 and the radiator 10, and condensed water of the first heat exchanger 21 can flow into the main water path 30 and flow into the water heat exchange flow path 12 through the main water path 30. When the variable frequency air conditioning system 100 is in the first state, the flow direction of the cooling water in the cooling medium heat exchange pipe 13 is opposite to that of the cooling water in the water heat exchange flow path 12; when the variable frequency air conditioning system 100 is in the second state, the coolant in the coolant heat exchange tube 13 and the cooling water in the water heat exchange flow path 12 flow in the same direction.

Specifically, the heat exchange circulation path 20 further includes a compressor 22, a throttle valve 25, and a second heat exchanger 23. The compressor 22, the first heat exchanger 21, the throttle valve 25, the radiator 10, and the second heat exchanger 23 are sequentially disposed in series on the heat exchange circulation path 20. The heat exchange circulation path 20 further includes a switching valve 24, and the switching valve 24 can switch between the first state and the second state of the variable frequency air conditioning system 100 by communicating the outlet of the compressor 22 with the first heat exchanger 21 or communicating the outlet of the compressor 22 with the second heat exchanger 23.

In the present embodiment, the first state refers to the inverter air conditioning system 100 being in a cooling state. The second state refers to the variable frequency air conditioning system 100 being in a heating state.

When the variable frequency air conditioning system 100 is in the first state, the refrigerant flows out from the outlet of the compressor 22, flows into the second heat exchanger 23, the radiator 10, the throttle valve 25, the first heat exchanger 21 in sequence through the switching valve 24, and then enters the inlet of the compressor 22 through the switching valve 24. In this case, the first heat exchanger 21 is used as an evaporator, and the second heat exchanger 23 is used as a condenser. The flow direction of the cooling water flowing into the water heat exchange flow path 12 through the main water path 30 is opposite to that of the cooling water flowing into the radiator 10 through the second heat exchanger 23, the temperature difference between the cooling water and the cooling water is large, and the cooling water has good cooling effect on the cooling water and the frequency converter. The cooling efficiency of the inverter air conditioning system 100 can be improved by reducing the temperature of the refrigerant. Meanwhile, the reduction of the temperature of the frequency converter further improves the reliability of the variable frequency air conditioning system 100.

On the other hand, in the refrigerating state, the first heat exchanger 21 can generate condensed water rich in cold, and the condensed water is collected and conveyed into the radiator 10 through the main waterway 30, so that a better cooling effect can be achieved, the problem of discharging the condensed water is solved, environmental pollution is avoided, and the environmental protection performance of the variable frequency air conditioning system 100 is improved.

When the variable frequency air conditioning system 100 is in the second state, the refrigerant flows out from the outlet of the compressor 22, flows into the first heat exchanger 21, the throttle valve 25, the radiator 10, the second heat exchanger 23 in sequence through the switching valve 24, and then enters the inlet of the compressor 22 through the switching valve 24. In this case, the first heat exchanger 21 is used as a condenser, and the second heat exchanger 23 is used as an evaporator. The flow direction of the refrigerant entering the radiator 10 through the throttle valve 25 is the same as that of the cooling water flowing into the water heat exchange flow path 12 through the main water path 30, and at the moment, the temperature difference between the refrigerant and the cooling water is smaller, and the cooling water mainly cools the frequency converter. The cooling capacity of the frequency converter is higher than that of the refrigerant in the original structure, so that the cooling effect of the frequency converter is improved.

Further, because the specific heat capacity of water is far greater than that of the refrigerant, and the temperature rise of water is far lower than that of the refrigerant under the same heat absorption capacity, the radiator 10 can effectively regulate and control the temperature of the refrigerant in the variable-frequency air conditioning system 100 no matter in a refrigerating or heating state, and the influence of the heat dissipation capacity of the frequency converter on the temperature of the refrigerant is reduced.

With continued reference to fig. 6, the main waterway 30 includes a tank 31, and condensed water of the first heat exchanger 21 can flow into the tank 31. The variable frequency air conditioning system 100 further includes a supply waterway 40, one end of the supply waterway 40 is connected to the main waterway 30, the supply waterway 40 includes a water reservoir 41, and cooling water in the water reservoir 41 can flow into the liquid storage tank 31 through the supply waterway 40.

Specifically, in the first state, the condensed water generated in the first heat exchanger 21 and the cooling water supplied to the water passage 40 are mainly supplied to the reservoir 31. In the second state, since the first heat exchanger 21 does not generate condensed water, the cooling water supplied to the water channel 40 is mainly supplied to the reservoir 31. The water supply path 40 further includes a second water pump 42, and the second water pump 42 is configured to pump the cooling water in the reservoir 41 into the liquid storage tank 31, and continuously supplement the cooling water in the liquid storage tank 31 through the water supply path 40, so as to satisfy the heat exchange requirement of the radiator 10.

The variable frequency air conditioning system 100 further includes a water make-up water path 60, the water make-up water path 60 being in communication with the reservoir 41. Specifically, the water replenishing waterway 60 includes a third water pump 61, and the third water pump 61 is capable of pumping cooling water of the groundwater source and storing the cooling water in the reservoir 41.

The variable frequency air conditioning system 100 also includes a collection waterway 50. The collection waterway 50 can communicate with the water heat exchange flow path 12 and the reservoir 41, respectively. The collecting waterway 50 can collect the cooling water after heat exchange by the radiator 10 and perform subsequent treatment, thereby realizing effective utilization of resources.

The collecting waterway 50 includes a first branch 51, a second branch 52, and a third branch 53. One end of the first branch passage 51 is connected to the water heat exchanging channel 12, the first branch passage 51 includes a filter 511, a sterilizing tank 512, and a first water pump 513, and cooling water flowing out of the water heat exchanging channel 12 can pass through the filter 511, the sterilizing tank 512, and the first water pump 513 in this order. The cooling water subjected to heat exchange by the radiator 10 has impurities, the impurities in the water can be removed through the filtration of the filter 511 and the disinfection function of the disinfection tank 512, so that the water quality meets the daily use requirement, and the treated cooling water is conveyed into the second branch 52 or the third branch 53 through the first water pump 513 for recycling.

The second branch 52 is connected to the first branch 51 and the reservoir 41, respectively. Specifically, second branch 52 includes a first valve 521, first valve 521 being located between first water pump 513 and reservoir 41. And the first valve 521 is used to open or close the second branch 52. When a valve is opened, the second branch 52 is operated, and the cooling water treated by the first branch 51 can enter the reservoir 41 for supplementing the water in the reservoir 41. On the other hand, the temperature of the cooling water subjected to heat exchange by the radiator 10 is also high, and the water temperature in the reservoir 41 and thus the refrigerant temperature and the inverter temperature can be controlled by controlling the amount of the cooling water in the second branch 52 and the amount of the groundwater in the water make-up water channel 60.

The third branch 53 is connected to the first branch 51, and the third branch 53 includes a water storage tank 531, and the cooling water of the first branch 51 can flow into the water storage tank 531. Specifically, third branch 53 further includes a second valve 532, second valve 532 being located between first water pump 513 and water reservoir 531. And a second valve 532 is used to open or close the third branch 53. When the second valve 532 is opened, the third branch 53 is operated, and the cooling water treated by the first branch 51 can enter the water storage tank 531 for daily use, thereby realizing advantageous conversion of energy.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims (13)

1. A heat sink, comprising:

a heat dissipation substrate (11);

a water heat exchange flow path (12), at least part of the water heat exchange flow path (12) being provided in the heat radiation substrate (11);

a refrigerant heat exchange tube (13), at least part of the refrigerant heat exchange tube (13) penetrates through the heat dissipation substrate (11), and at least part of the refrigerant heat exchange tube (13) is arranged in the water heat exchange flow path (12);

wherein, the cooling water in the water heat exchange flow path (12) can exchange heat with the refrigerant in the refrigerant heat exchange tube (13) and the heat dissipation substrate (11) respectively.

2. The radiator according to claim 1, characterized in that the refrigerant heat exchange tube (13) includes:

a first communication pipe (131), at least part of the first communication pipe (131) penetrates through two ends of the heat dissipation substrate (11);

a second communication pipe (132), at least part of the second communication pipe (132) penetrates through both ends of the heat radiation substrate (11);

the first bending pipe (133), the first bending pipe (133) is located outside the radiating substrate (11), and the first bending pipe (133) is located the same end of the first communicating pipe (131) and the second communicating pipe (132), and respectively communicate with the first communicating pipe (131) and the second communicating pipe (132).

3. The heat sink of claim 2, further comprising:

a water heat exchange tube (14), at least part of the water heat exchange tube (14) penetrates through the heat dissipation substrate (11) and is connected with the heat dissipation substrate (11), and the water heat exchange flow path (12) is formed in the water heat exchange tube (14);

the refrigerant heat exchange tube (13) is at least partially arranged in the water heat exchange tube (14) and is connected with the water heat exchange tube (14).

4. A radiator according to claim 3, wherein the water heat exchange tube (14) comprises:

an input pipe (141), at least part of the input pipe (141) penetrates through two ends of the heat dissipation substrate (11);

the output pipe (142), at least part of the output pipe (142) penetrates through two ends of the heat dissipation substrate (11);

the second bending pipe (143), the said second bending pipe (143) locates outside the said radiating base plate (11), and the said second bending pipe (143) locates at the identity end of the said input tube (141) and said output tube (142), and connect with said input tube (141) and said output tube (142) separately;

wherein at least part of the first communicating pipe (131) is located in the input pipe (141), the first bending pipe (133) is located in the second bending pipe (143), and at least part of the second communicating pipe (132) is located in the output pipe (142).

5. The heat sink of claim 4, further comprising:

a first connecting pipe (15), wherein the first connecting pipe (15) is positioned at one end of the input pipe (141) away from the second bending pipe (143) and is communicated with the input pipe (141);

the second connecting pipe (16), the said second connecting pipe (16) locates at one end far away from said second bent pipe (143) of said output pipe (142), and communicate with said output pipe (142);

the included angle between the central axis of the first connecting pipe (15) and the central axis of the input pipe (141) is A1, the included angle between the central axis of the second connecting pipe (16) and the central axis of the output pipe (142) is A2, A1 is more than or equal to 0 degree and less than or equal to 90 degrees, and A2 is more than or equal to 0 degree and less than or equal to 90 degrees.

6. The radiator according to claim 2, wherein the radiating substrate (11) is provided with a first water channel (111) and a second water channel (112) penetrating through two ends of the radiating substrate (11), the radiator further comprises a second bent pipe (143), the second bent pipe (143) is located outside the radiating substrate (11), and the second bent pipe (143) is located at the same end of the first water channel (111) and the second water channel (112) and is connected with the first water channel (111) and the second water channel (112) respectively; the first water channel (111), the second water channel (112) and the second bent pipe (143) form the water heat exchange flow path (12);

wherein at least part of the first communicating pipe (131) is located in the first water channel (111), the first bending pipe (133) is located in the second bending pipe (143), and at least part of the second communicating pipe (132) is located in the second water channel (112).

7. The heat sink of claim 6, further comprising:

a third connecting pipe (17), wherein the third connecting pipe (17) is positioned at one end of the heat radiating substrate (11) far away from the second bent pipe (143) and is communicated with the first water channel (111);

a fourth connecting pipe (18), wherein the fourth connecting pipe (18) is positioned at one end of the heat radiating substrate (11) far away from the second elbow pipe (143) and is communicated with the second water channel (112);

wherein the central axis of the third connecting pipe (17) is parallel to the central axis of the fourth connecting pipe (18).

8. The radiator according to claim 2, wherein a first water channel (111), a second water channel (112) and at least one branch channel (113) are formed in the radiating substrate (11), the first water channel (111) and the second water channel (112) are arranged at intervals, and the branch channel (113) is located between the first water channel (111) and the second water channel (112) and is respectively communicated with the first water channel (111) and the second water channel (112); the first water channel (111), the second water channel (112) and the branch channel (113) form the water heat exchange flow path (12);

wherein at least part of the first communicating pipe (131) is positioned in the first water channel (111), and at least part of the second communicating pipe (132) is positioned in the second water channel (112).

9. The heat sink according to claim 6 or 8, wherein the side walls of the first water channel (111) and the second water channel (112) are provided with a plurality of heat exchanging protrusions (114) arranged at intervals.

10. A variable frequency air conditioning system comprising the radiator of any one of claims 1-9, the variable frequency air conditioning system further comprising:

a heat exchange circulation path (20), wherein the heat exchange circulation path (20) comprises a first heat exchanger (21), and the radiator and the first heat exchanger (21) are arranged on the heat exchange circulation path (20) in series;

a main waterway (30), wherein two ends of the main waterway (30) are respectively communicated with the first heat exchanger (21) and the radiator, and condensed water of the first heat exchanger (21) can flow into the main waterway (30) and flow into the water heat exchange flow path (12) through the main waterway (30);

when the variable-frequency air conditioning system is in a first state, the flow direction of the cooling water in the cooling medium heat exchange pipe (13) is opposite to that of the cooling water in the water heat exchange flow path (12); when the variable frequency air conditioning system is in the second state, the cooling water in the cooling medium heat exchange pipe (13) and the cooling water in the water heat exchange flow path (12) flow in the same direction.

11. Variable frequency air conditioning system according to claim 10, characterized in that the main waterway (30) comprises a tank (31), the condensed water of the first heat exchanger (21) being able to flow into the tank (31), the variable frequency air conditioning system further comprising:

and a supply waterway (40), wherein one end of the supply waterway (40) is connected with the main waterway (30), the supply waterway (40) comprises a reservoir (41), and cooling water in the reservoir (41) can flow into the liquid storage tank (31) through the supply waterway (40).

12. The variable frequency air conditioning system of claim 11, further comprising:

a collection waterway (50), wherein the collection waterway (50) can be respectively communicated with the water heat exchange flow path (12) and the reservoir (41);

and the water supplementing waterway (60) is communicated with the water reservoir (41).

13. The variable frequency air conditioning system according to claim 12, wherein the collecting waterway (50) includes:

a first branch circuit (51), wherein one end of the first branch circuit (51) is connected with the water heat exchange flow path (12), the first branch circuit (51) comprises a filter (511), a disinfection tank (512) and a first water pump (513), and cooling water flowing out of the water heat exchange flow path (12) can sequentially pass through the filter (511) and the disinfection tank (512), and the first water pump (513);

a second branch (52), wherein the second branch (52) is respectively connected with the first branch (51) and the reservoir (41);

and a third branch (53), wherein the third branch (53) is connected with the first branch (51), the third branch (53) comprises a water storage tank (531), and cooling water of the first branch (51) can flow into the water storage tank (531).

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