Household water machine

Abstract

The utility model provides a household water machine which can improve the heat dissipation effect on electric devices and save the cost of a radiator. The household water machine comprises an outdoor unit, a water side heat exchanger and a water terminal. The water side heat exchanger comprises a refrigerant flow path and a water flow path. A radiator is arranged on the outdoor unit and comprises a radiating base body and a radiating water path, the radiating water path comprises a water inlet main path, a water outlet main path and a plurality of radiating branches connected between the water inlet main path and the water outlet main path in parallel, the water inlet end of the water inlet main path is connected to the water inlet end of the water flow path, and the radiating branches are arranged on the radiating base body in a penetrating mode. A second water pump is arranged on the water inlet main path or the water outlet main path. When a relatively high heat dissipation effect is needed, water cooling and air cooling are combined for heat dissipation, so that the heat dissipation capability of the radiator is improved to the greatest extent; when a low heat dissipation effect is needed, the second water pump can be closed, and only air cooling heat dissipation is achieved; during design, the inner diameter and the length of each heat dissipation branch can be reasonably selected according to the wind speed difference of each part on the radiator, and the heat exchange and dissipation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning equipment technology, specifically relating to a household water purifier. Background Technology

[0002] Currently, in the development of outdoor units for residential water chillers, the frame size is becoming increasingly smaller, and electrical power modules (such as compressor drives and fan drives) are becoming more and more integrated, occupying less space. In order to achieve the same electrical power, more heat is dissipated. In order not to affect the lifespan of electrical components, stronger heat dissipation is required for electrical components.

[0003] Currently, the outdoor units of residential water chillers commonly use air-cooled radiators for heat dissipation of electrical components. These radiators consist of a plate-shaped base and several heat dissipation fins mounted on the base. Improving heat dissipation efficiency typically involves increasing the radiator's size. However, since radiators are made of aluminum, simply increasing their size leads to a sharp increase in cost, making mass production impossible. Furthermore, during the development of outdoor unit radiators, temperature rise tests are frequently unsuccessful. Increasing the radiator's size and density, while ensuring the temperature rise is acceptable, can result in excessive heat dissipation, potentially causing condensation inside the electrical box and posing a machine hazard.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] In view of the problems pointed out in the background art, this utility model proposes a household water purifier that can improve the heat dissipation effect of electrical components and save radiator costs.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] In some embodiments of this application, a household water dispenser is provided, comprising:

[0008] The outdoor unit includes a compressor, an air-side heat exchanger, a throttling device, and electrical components;

[0009] A water-side heat exchanger, which includes a refrigerant flow path and a water flow path;

[0010] Water terminal;

[0011] The compressor, the air-side heat exchanger, the throttling device, and the water-side heat exchanger are connected to form a refrigerant circulation loop;

[0012] The water flow path of the water-side heat exchanger and the water-using terminal are connected to form a water circulation loop. A first water pump is provided on the water circulation loop to control the water flow status of the water circulation loop.

[0013] The outdoor unit is equipped with a heat sink for dissipating heat from the electrical components, including:

[0014] A heat dissipation substrate is thermally connected to the electrical device;

[0015] The cooling water circuit includes a main inlet water circuit, a main outlet water circuit, and multiple cooling branch circuits connected in parallel between the main inlet water circuit and the main outlet water circuit. The inlet end of the main inlet water circuit is connected to the inlet end of the water flow circuit. The multiple cooling branch circuits are installed on the cooling base. A second water pump is provided on the main inlet water circuit or the main outlet water circuit to control the water flow status of the cooling water circuit.

[0016] The household water purifier in the above technical solution has the following advantages or beneficial effects:

[0017] In some embodiments of this application, the outdoor unit of the household water purifier is equipped with a radiator. The inlet end of the radiator's cooling water path is connected to the inlet end of the water flow path of the water-side heat exchanger. When a higher cooling effect is required, the second water pump can be turned on to use the low-temperature inlet water from the branch of the household water purifier unit's water system to perform water cooling and heat dissipation on the electrical components. At the same time, its heat sink can perform air cooling and heat dissipation on the electrical components. That is, water cooling and air cooling are combined to maximize the heat dissipation capacity of the radiator without increasing the size of the radiator, thus saving costs to the greatest extent.

[0018] Meanwhile, when a lower heat dissipation effect is required, the second water pump can be turned off, and the heat sink can be used for air cooling to avoid condensation on electrical components and affect electrical safety.

[0019] In addition, during the design process, the differences in airflow velocity at various points on the radiator can be taken into account to rationally select the inner diameter and length of each heat dissipation branch, thereby adjusting the flow resistance of each heat dissipation branch and improving the heat exchange efficiency.

[0020] In some embodiments of this application, the main outlet of the cooling water path is connected to the outlet end of the water flow path.

[0021] The household water purifier in the above technical solution has the following advantages or beneficial effects: the low-temperature inlet water from the branch of the water system of the household water purifier flows into the heat dissipation base of the radiator, takes away the heat of the radiator, and merges with the water flow at the outlet of the water flow path of the water-side heat exchanger of the unit, realizing the utilization of waste heat and helping to improve the heating capacity of the unit.

[0022] In some embodiments of this application, a second flow switch is provided on the main inlet or the main outlet.

[0023] The household water purifier in the above technical solution has the following advantages or beneficial effects: the water flow switch can detect the cooling water flow in the heat dissipation water circuit in real time, ensuring the cooling effect.

[0024] In some embodiments of this application, the heat sink further includes a plurality of heat sinks arranged in parallel on the heat sink substrate, and a plurality of heat dissipation branches arranged in parallel, wherein the arrangement direction of the heat dissipation branches is parallel to the arrangement direction of the heat sinks.

[0025] The household water purifier in the above technical solution has the following advantages or beneficial effects: it can arrange the heat sink and heat dissipation branches in an orderly manner on the heat dissipation substrate, make full use of the space of the heat dissipation substrate, and help to maximize the heat dissipation effect of the radiator.

[0026] In some embodiments of this application, each heat dissipation branch includes an inlet section, a heat dissipation section, and an outlet section connected in sequence. The inlet end of the inlet section is connected to the outlet end of the main inlet section. The heat dissipation section is located within the heat dissipation substrate. The outlet end of the outlet section is connected to the inlet end of the main outlet section.

[0027] The household water purifier in the above technical solution has the following advantages or beneficial effects: setting each heat dissipation branch as a multi-segment connection structure can facilitate the processing and connection of the heat dissipation branches, especially the processing of the heat dissipation section inside the heat dissipation base.

[0028] In some embodiments of this application, the inner diameters of the main inlet channel and the main outlet channel are equal, and at least some of the heat dissipation branch channels have different inner diameters and lengths in their inlet sections and different inner diameters and lengths in their outlet sections.

[0029] The household water purifier in the above technical solution has the following advantages or beneficial effects: it can combine the differences in wind speed at various points on the radiator to reasonably select the inner diameter and length of the inlet section and the inner diameter and length of the outlet section of each heat dissipation branch, thereby adjusting the flow resistance of each heat dissipation branch and improving the heat exchange efficiency.

[0030] In some embodiments of this application, the inner diameter of the heat dissipation section of all the heat dissipation branches is equal.

[0031] The household water purifier in the above technical solution has the following advantages or beneficial effects: the inner diameter of the heat dissipation section of all heat dissipation branches is equal, which facilitates processing.

[0032] In some embodiments of this application, the electrical components are disposed on an electrical box, the electrical components include a drive board and an electrical power module integrated on the drive board, the heat sink is fixedly connected to the drive board through the heat dissipation substrate, and thermally conductive silicone grease is coated between the heat dissipation substrate and the electrical power module.

[0033] The residential water purifier in the above technical solution has the following advantages or beneficial effects: Since the electrical power modules, such as the compressor drive and fan drive, are the main heat-generating components of the outdoor unit of the residential water purifier, fixing the heat dissipation base of the radiator to the drive board that integrates the electrical power modules and setting thermal grease between the two can improve the heat dissipation capacity of the electrical drive modules.

[0034] In some embodiments of this application, the heat dissipation substrate and the drive board are fastened together by screws, and the screw positions are offset from the positions of the heat dissipation branches.

[0035] The household water purifier in the above technical solution has the following advantages or beneficial effects: the connecting screws between the heat dissipation base and the drive plate do not obstruct the water flow of the heat dissipation branch, allowing the water to flow smoothly and ensuring the heat dissipation effect.

[0036] In some embodiments of this application, a household water purifier includes;

[0037] The outdoor unit includes a compressor, an air-side heat exchanger, a throttling device, and electrical components;

[0038] A water-side heat exchanger, which includes a refrigerant flow path and a water flow path;

[0039] Water terminal;

[0040] The compressor, the air-side heat exchanger, the throttling device, and the water-side heat exchanger are connected to form a refrigerant circulation loop;

[0041] The water flow path of the water-side heat exchanger and the water-using terminal are connected to form a water circulation loop, and a first water pump is provided on the water circulation loop;

[0042] The outdoor unit has a radiator with a cooling water path and several heat sinks for water-cooling and air-cooling combination of the electrical box. The water inlet of the cooling water path is connected to the water inlet of the water flow path of the water-side heat exchanger. A second water pump is provided on the cooling water path.

[0043] The household water purifier in the above-mentioned technical solution has the following advantages or beneficial effects: In some embodiments of this application, the household water purifier has a radiator with a cooling water path and several heat sinks. The inlet end of the cooling water path is connected to the inlet end of the water flow path of the water-side heat exchanger. When a higher cooling effect is required, the second water pump can be turned on to use the low-temperature inlet water from the branch of the water system of the household water purifier unit to cool the electrical box with water. At the same time, the heat sinks can cool the electrical components with air. That is, the combination of water cooling and air cooling maximizes the heat dissipation capacity of the radiator without increasing the size of the radiator, thus saving costs to the greatest extent. At the same time, when a lower cooling effect is required, the second water pump can be turned off, and only the heat sinks can provide air cooling, thus avoiding condensation on the electrical components and affecting electrical safety as much as possible.

[0044] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 An exemplary system circulation diagram of a household water system according to some embodiments is shown;

[0047] Figure 2 for Figure 1 Enlarged view of part A;

[0048] Figure 3 An exemplary schematic diagram of the outdoor unit of a residential water heater according to some embodiments is shown;

[0049] Figure 4 An exemplary schematic diagram of the structure of the outdoor unit of a residential water heater, omitting the front panel and top panel, is shown in some embodiments.

[0050] Figure 5 for Figure 4 Enlarged view of part B;

[0051] Figure 6 An exemplary perspective view of a heat sink according to some embodiments is shown;

[0052] Figure 7 for Figure 6 Side view;

[0053] Figure 8 for Figure 7 CC section view;

[0054] Figure 9 An exemplary schematic diagram of the assembly structure of the radiator and the drive board, with the cooling water path omitted according to some embodiments, is shown.

[0055] Figure 10 for Figure 9 The exploded diagram.

[0056] Figure label:

[0057] 100 Outdoor unit; 200 Water-side heat exchanger; 210 Refrigerant flow path; 220 Water flow path; 300 Radiator; 310 Heat dissipation base; 320 Main water inlet; 330 Main water outlet; 340 Heat dissipation branch; 341 Water inlet section; 342 Heat dissipation section; 343 Water outlet section; 350 Heat dissipation fins; 400 Second water pump; 500 Second water flow switch; 600 Electrical box; 700 Driver board; 710 Compressor drive module; 720 Fan drive module; 800 First water pump; 900 First water flow switch. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0064] In this application, the air conditioner performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

[0065] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0066] The expansion valve expands the high-temperature, high-pressure liquid refrigerant that condenses in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0067] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0068] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0069] Reference Figures 1 to 8 In some embodiments of this application, a household water purifier is proposed, which includes at least an outdoor unit 100, a water-side heat exchanger 200, and a water terminal.

[0070] The outdoor unit 100 includes at least a compressor, a wind-side heat exchanger, a throttling device, and electrical components, as well as a casing and an outdoor fan. The specific structure of the outdoor unit 100 is the same as that in the prior art and will not be described in detail here.

[0071] The casing of the outdoor unit 100 defines its external outline. The casing is rectangular and includes a top plate, a bottom plate, and circumferential side plates. The circumferential side plates consist of a front panel, a rear panel, a left side panel, and a right side panel. Air inlets and outlets are provided on the circumferential side plates. An air inlet grille is provided on the air inlet, and an air outlet grille is provided on the air outlet. The compressor, air-side heat exchanger, throttling device, electrical components, and outdoor fan are housed within the internal space enclosed by the casing.

[0072] The water-side heat exchanger 200 includes a refrigerant flow path 210 and a water flow path 220. The water-side heat exchanger 200 can be a plate heat exchanger or a shell-and-tube heat exchanger, etc. The refrigerant flow path 210 is used for refrigerant flow, and the water flow path 220 is used for water flow. In the water-side heat exchanger 200, water and refrigerant exchange heat.

[0073] Water terminal (in) Figure 1 The inlet and outlet of the greywater circulation loop (not shown) can be the user's underfloor heating or air conditioning fan coil unit, or other domestic water equipment.

[0074] The compressor, air-side heat exchanger, throttling device, and refrigerant flow path 210 of water-side heat exchanger 200 are connected to form a refrigerant circulation loop; the water flow path 220 of water-side heat exchanger 200 is connected to the water terminal to form a water circulation loop. A first water pump is provided on the water circulation loop to drive the water flow in the water circulation loop and control the water flow state in the water circulation loop. A first water flow switch 900 is also provided on the water circulation loop.

[0075] After the refrigerant is discharged from the compressor, the high-temperature refrigerant enters the refrigerant flow path 210 of the water-side heat exchanger 200 and exchanges heat with the water flow path 220 of the water-side heat exchanger 200, heating the water in the water flow path 220 of the water-side heat exchanger 200. The refrigerant flowing out of the refrigerant flow path 210 of the water-side heat exchanger 200 becomes a low-temperature refrigerant, and the temperature of the water flowing out of the water flow path 220 of the water-side heat exchanger 200 increases, so as to provide heating water or domestic water for the water-using terminals.

[0076] Electrical components are electronic parts required for the operation of the outdoor unit 100, such as compressor drive modules, fan drive modules, and other electrical drive modules. Because these components easily generate heat during operation, if the heat is not dissipated in time, they may burn out, affecting the safety and reliability of the product. Therefore, it is necessary to provide heat dissipation and cooling for these components.

[0077] In some embodiments of this application, the outdoor unit 100 is provided with a radiator 300, which is specifically located inside the outdoor unit 100 and on the air intake side of the outdoor unit 100 fan, and is used to dissipate heat from the electrical components.

[0078] In some embodiments of this application, the heat sink 300 includes a heat dissipation substrate 310, which is a plate made of a thermally conductive material, such as an aluminum plate or a copper plate, and is thermally connected to the electrical device.

[0079] In some embodiments of this application, the radiator 300 further includes a heat dissipation water path, which includes a main inlet water path 320, a main outlet water path 330, and multiple heat dissipation branch paths 340. The multiple heat dissipation branch paths 340 are connected in parallel between the main inlet water path 320 and the main outlet water path 330. The inlet end of the main inlet water path 320 is connected to the inlet end of the water flow path 220 of the water-side heat exchanger 200. The multiple heat dissipation branch paths 340 are installed on the heat dissipation base 310. The main inlet water path 320 and the main outlet water path 330 are respectively located on opposite sides of the heat dissipation base 310. A second water pump 400 is installed on the main inlet water path 320 or the main outlet water path 330. The second water pump 400 controls the water flow state in the heat dissipation water path.

[0080] Then as Figure 1As shown, while the water in the water circulation loop flows into the water flow path 220 of the water-side heat exchanger 200, a portion of the water also flows into the heat dissipation water path. That is, before the water flows into the water flow path 220 of the water-side heat exchanger 200, the water in the water circulation loop is divided into two paths. One path enters the water flow path 220 of the water-side heat exchanger 200 and participates in the system circulation normally. The other path enters the inlet main pipe and each heat dissipation branch 340 of the heat dissipation water path and enters the radiator 300 as the water cooling water for the radiator 300. It exchanges heat with the electrical components to cool them down. The high-temperature water after heat exchange flows out through the outlet main pipe.

[0081] The inlet water temperature of the water-side heat exchanger 200 is low, usually below 40°C, which is far below the heat dissipation temperature required by the electrical components (usually above 80°C). Therefore, under both cooling and heating conditions, the inlet water flow of the water-side heat exchanger 200 can be used to dissipate heat from the radiator 300 and then from the electrical components.

[0082] The main inlet channel 320 and main outlet channel 330 of the cooling water circuit are rigid pipes, such as metal pipes with good thermal conductivity. The cooling branch channel 340 can be a water flow channel formed in the cooling base 310, or a rigid metal pipe welded to the cooling base 310. The rigid metal pipe can maintain its own shape, does not require additional support structure, and can be welded together, making installation convenient.

[0083] In some embodiments of this application, the radiator 300 further includes a plurality of heat sinks 350, which are disposed on the heat dissipation base 310, specifically on the same side of the heat dissipation base 310. The plurality of heat sinks 350 are spaced apart from each other to form multiple airflow channels. When the outdoor fan is running, the heat sinks 350 of the radiator 300 can also be used to cool the electrical components.

[0084] In some embodiments of this application, the radiator 300 on the outdoor unit 100 of the residential water heater can achieve a combination of water cooling and air cooling for the electrical components, thereby maximizing the heat dissipation capacity of the radiator 300.

[0085] Specifically, when a higher heat dissipation effect is required, the second water pump 400 can be turned on to use the low-temperature inlet water from the branch of the water system of the user water chiller unit to cool the electrical components with water. At the same time, its heat sink 350 can cool the electrical components with air. That is, water cooling and air cooling are combined to maximize the heat dissipation capacity of the heat sink 300 without increasing the size of the heat sink 300, thus saving costs to the greatest extent.

[0086] When a lower heat dissipation effect is required, the second water pump 400 can be turned off, and only the heat sink 350 can be used for air cooling. This can avoid excessive heat dissipation capacity causing condensation on electrical components and affecting electrical safety.

[0087] In addition, during the design process, the differences in airflow velocity at various points on the radiator 300 can be taken into account to reasonably select the inner diameter and length of each heat dissipation branch 340, thereby adjusting the flow resistance of each heat dissipation branch 340 and improving the heat exchange efficiency.

[0088] In some embodiments of this application, such as Figure 1 As shown, the main outlet water path 330 of the heat dissipation water path is connected to the outlet end of the water flow path 220 of the water-side heat exchanger 200, so that the heat dissipation water path and the water flow path 220 of the water-side heat exchanger 200 form a parallel structure.

[0089] The main inlet water path 320 of the cooling water circuit is connected to the inlet end of the water flow path 220 of the water-side heat exchanger 200, and the main outlet water path 330 is connected to the outlet end of the water flow path 220 of the water-side heat exchanger 200. The low-temperature inlet water from the branch of the water system of the household water chiller unit flows into the heat dissipation base 310 of the radiator 300, and exchanges heat with the radiator 300 and then with the electrical components. After removing the heat from the radiator 300 and the electrical components, high-temperature water is formed. The high-temperature water merges with the water flow at the outlet end of the water flow path 220 of the water-side heat exchanger 200 through the main outlet water path 330. The water is introduced into the water circulation loop to realize the utilization of waste heat and help improve the heating capacity of the unit.

[0090] In some embodiments of this application, a second flow switch 500 is provided on the main inlet channel 320 or the main outlet channel 330 of the cooling water circuit; that is, the second flow switch 500 can be provided on the main inlet channel 320 or the main outlet channel 330. Figure 1 The second water flow switch 500 shown is installed on the main water inlet 320, and the second water pump 400 is also installed on the main water inlet 320.

[0091] The second flow switch 500 can detect the flow rate of cooling water in the heat dissipation circuit in real time to ensure the cooling effect.

[0092] In some embodiments of this application, all heat sinks 350 are arranged in parallel and aligned with each other; similarly, all heat dissipation branches 340 are arranged in parallel and aligned with each other, and the arrangement direction of the heat dissipation branches 340 is parallel to the arrangement direction of the heat sinks 350. This allows the heat sinks 350 and heat dissipation branches 340 to be arranged in an orderly manner on the heat dissipation substrate 310, making full use of the space of the heat dissipation substrate 310, which is conducive to maximizing the heat dissipation effect of the heat sink 300.

[0093] In some embodiments of this application, for each heat dissipation branch 340, such as Figures 6 to 8 As shown, each heat dissipation branch 340 includes an inlet section 341, a heat dissipation section 342, and an outlet section 343 connected in sequence. The inlet end of the inlet section 341 is connected to the outlet end of the main inlet section 320. The heat dissipation section 342 is located inside the heat dissipation base 310. The outlet end of the outlet section 343 is connected to the inlet end of the main outlet section 330.

[0094] At this time, only the heat dissipation section 342 can be set inside the heat dissipation base 310, and the water inlet section 341 and the water outlet section 343 are located on the opposite sides of the heat dissipation base 310, respectively. The water inlet section 341 is located on the same side as the water inlet main pipe, and the water outlet section 343 is located on the same side as the water outlet main pipe.

[0095] The inlet section 341 and the outlet section 343 can be made of rigid metal pipes, which are welded to the main inlet pipe and the main outlet pipe respectively; the heat dissipation section 342 can be a water channel formed separately in the heat dissipation base 310, or a rigid metal pipe welded to the heat dissipation base 310, with both ends welded to the inlet section 341 and the outlet section 343 respectively, for ease of processing.

[0096] By setting each heat dissipation branch 340 as a multi-segment connection structure, the processing and connection of the heat dissipation branch 340 can be facilitated, especially the processing of the heat dissipation section 342 inside the heat dissipation base 310.

[0097] In some embodiments of this application, the inner diameters of the main water inlet channel 320 and the main water outlet channel 330 are equal. Among all the heat dissipation branches 340, at least some of the heat dissipation branches 340 have different inner diameters and lengths of the water inlet section 341, and the inner diameters and lengths of the water outlet section 343 of these heat dissipation branches 340 are also different.

[0098] Therefore, by taking into account the differences in airflow speed at various points on the radiator 300, the inner diameter and length of the inlet section 341 and the inner diameter and length of the outlet section 343 of each heat dissipation branch 340 can be reasonably selected, the flow resistance of each heat dissipation branch 340 can be adjusted, and the heat exchange efficiency can be improved.

[0099] In some embodiments of this application, the inner diameter of the heat dissipation section 342 of all heat dissipation branches 340 is equal to facilitate processing.

[0100] Since the outdoor unit 100 of a residential water chiller has many electrical components, in order to facilitate unified management and maintenance, in some embodiments of this application, an electrical box 600 is provided for the electrical components, such as... Figure 4 and Figure 5 As shown, the electrical components are mounted on the electrical box 600. The electrical components include a drive board 700 and an electrical power module integrated on the drive board 700. The heat sink 300 is fixedly connected to the drive board 700 through a heat sink base 310, and then fixedly connected to the electrical box 600 as a whole. Thermal grease is coated between the heat sink base 310 and the electrical power module.

[0101] Since electrical power modules such as compressor drive module 710 and fan drive module 720 are the main heat-generating components of the outdoor unit 100 of the residential water chiller, the heat dissipation base 310 of the radiator 300 is fixedly connected to the drive board 700 that integrates the electrical power modules, and thermal grease is applied between the two, which can improve the heat dissipation capacity of the electrical drive modules.

[0102] In some embodiments of this application, the heat dissipation base 310 and the drive board 700 are fastened together by screws. The screws are positioned offset from the heat dissipation branch 340, so that the connecting screws of the heat dissipation base 310 and the drive board 700 do not obstruct the water flow of the heat dissipation branch 340, allowing the water to flow smoothly and ensuring the heat dissipation effect.

[0103] In some embodiments of this application, a residential water purifier is provided, including an outdoor unit 100, a water-side heat exchanger 200, and a water terminal.

[0104] The outdoor unit 100 includes at least a compressor, a wind-side heat exchanger, a throttling device, and electrical components, as well as a casing and an outdoor fan. The compressor, wind-side heat exchanger, throttling device, electrical components, and outdoor fan are housed within the internal space enclosed by the casing.

[0105] The water-side heat exchanger 200 includes a refrigerant flow path 210 and a water flow path 220. The water-side heat exchanger 200 can be a plate heat exchanger or a shell-and-tube heat exchanger, etc. The refrigerant flow path 210 is used for refrigerant flow, and the water flow path 220 is used for water flow. In the water-side heat exchanger 200, water and refrigerant exchange heat.

[0106] Water terminals can be users' underfloor heating or air conditioning fan coil units, or other domestic water equipment.

[0107] The compressor, air-side heat exchanger, throttling device, and refrigerant flow path 210 of water-side heat exchanger 200 are connected to form a refrigerant circulation loop; the water flow path 220 of water-side heat exchanger 200 is connected to the water terminal to form a water circulation loop, and a first water pump 800 is provided on the water circulation loop to drive the water flow in the water circulation loop.

[0108] The compressor, air-side heat exchanger, throttling device and water-side heat exchanger 200 are connected in refrigerant flow path 210 to form a refrigerant circulation loop; the water flow path 220 of water-side heat exchanger 200 is connected to the water terminal to form a water circulation loop, and a first water pump 800 is provided on the water circulation loop.

[0109] The outdoor unit 100 has a radiator 300, which is equipped with a cooling water channel and several heat sinks 350 for water-cooling and air-cooling combination cooling of the electrical box 600. The water inlet of the cooling water channel is connected to the water inlet of the water flow channel 220 of the water-side heat exchanger 200. A second water pump 400 is provided on the cooling water channel.

[0110] While the water in the water circulation loop flows into the water flow path 220 of the water-side heat exchanger 200, a portion of the water also flows into the heat dissipation water path. That is, before the water flows into the water flow path 220 of the water-side heat exchanger 200, the water in the water circulation loop is divided into two paths. One path enters the water flow path 220 of the water-side heat exchanger 200 and participates in the system circulation normally. The other path enters the inlet main pipe and each heat dissipation branch 340 of the heat dissipation water path and enters the radiator 300 as the water cooling water for the radiator 300. It exchanges heat with the electrical components to cool them down. The high-temperature water after heat exchange flows out through the outlet main pipe.

[0111] When a higher heat dissipation effect is required, the second water pump 400 can be turned on to use the low-temperature inlet water from the branch of the water system of the user water chiller unit to cool the electrical components with water. At the same time, its heat sink 350 can cool the electrical components with air. That is, the combination of water cooling and air cooling maximizes the heat dissipation capacity of the heat sink 300 without increasing the size of the heat sink 300, thus saving costs to the greatest extent.

[0112] When a lower heat dissipation effect is required, the second water pump 400 can be turned off, and only the heat sink 350 can be used for air cooling. This can avoid excessive heat dissipation capacity causing condensation on electrical components and affecting electrical safety.

[0113] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0114] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A domestic water machine characterised in that, Comprise: The outdoor unit comprises a compressor, a wind side heat exchanger, a throttling device and an electrical device; The water side heat exchanger comprises a refrigerant flow path and a water flow path; Water terminal; The refrigerant flow path of the compressor, the wind side heat exchanger, the throttling device and the water side heat exchanger is connected to form a refrigerant circulation loop; The water flow path of the water side heat exchanger and the water terminal are connected to form a water circulation loop, and a first water pump is arranged on the water circulation loop for controlling the water flow state of the water circulation loop; The outdoor unit is provided with a radiator for dissipating heat from the electrical device, comprising: The heat dissipation base is in thermal contact with the electrical device; The heat dissipation water path comprises a water inlet main path, a water outlet main path and a plurality of heat dissipation branches connected in parallel between the water inlet main path and the water outlet main path, the water inlet end of the water inlet main path is connected to the water inlet end of the water flow path, a plurality of heat dissipation branches are arranged on the heat dissipation base, and a second water pump is arranged on the water inlet main path or the water outlet main path for controlling the water flow state of the heat dissipation water path.

2. The household water machine according to claim 1, wherein The water outlet main path of the heat dissipation water path is connected to the water outlet end of the water flow path to introduce the heat dissipated water flow into the water circulation loop.

3. The household water machine according to claim 1, wherein A second water flow switch is arranged on the water inlet main path or the water outlet main path, and the second water flow switch is configured to detect the water flow of the heat dissipation water path.

4. The household water machine according to claim 1, wherein The radiator further comprises a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged in parallel on the heat dissipation base, and the plurality of heat dissipation branches are arranged in parallel, and the arrangement direction of the heat dissipation branches is parallel to the arrangement direction of the heat dissipation fins.

5. The household water machine according to claim 1, wherein Each heat dissipation branch comprises a water inlet section, a heat dissipation section and a water outlet section connected in sequence, the water inlet end of the water inlet section is connected to the water outlet end of the water inlet main path, the heat dissipation section is located in the heat dissipation base, and the water outlet end of the water outlet section is connected to the water inlet end of the water outlet main path.

6. The household water machine according to claim 5, wherein The inner diameters of the water inlet main path and the water outlet main path are equal, and the inner diameters and lengths of at least part of the water inlet sections of the heat dissipation branches are unequal, and the inner diameters and lengths of the water outlet sections are unequal.

7. The household water machine according to claim 6, wherein The inner diameters of the heat dissipation sections of all the heat dissipation branches are equal.

8. The household water machine according to claim 1, wherein The electrical device is arranged on an electrical device box, the electrical device comprises a drive board and an electrical power module integrated on the drive board, the radiator is fixedly connected to the drive board through the heat dissipation base, and heat-conducting silicone grease is coated between the heat dissipation base and the electrical power module.

9. The household water machine according to claim 8, wherein The heat dissipation base and the drive board are fastenedly connected through screws, and the positions of the screws are staggered with the positions of the heat dissipation branches.

10. A domestic water machine characterised in that, Comprise: The outdoor unit comprises a compressor, a wind side heat exchanger, a throttling device and an electrical device; The water side heat exchanger comprises a refrigerant flow path and a water flow path; Water terminal; The refrigerant flow paths of the compressor, the air-side heat exchanger, the throttling device and the water-side heat exchanger are connected to form a refrigerant circulation loop; The water flow path of the water-side heat exchanger and the water terminal are connected to form a water circulation loop, and a first water pump is arranged on the water circulation loop; The outdoor unit is provided with a radiator, the radiator is provided with a radiator water flow path and a plurality of radiator fins, and is used for water cooling and air cooling combined heat dissipation of the electrical device, the inlet of the radiator water flow path is connected to the inlet of the water flow path of the water-side heat exchanger, and a second water pump is arranged on the radiator water flow path.

Images