Water drinking equipment

Abstract

The invention discloses drinking water equipment, and relates to the technical field of drinking water, the drinking water equipment comprises a compressor, a second heat exchanger, a first heat exchanger, a second refrigerant outflow pipe and a capillary pipe; the second heat exchanger and the first heat exchanger are arranged on the upper side and the lower side of the compressor respectively, and the second heat exchanger is connected with the compressor. A second refrigerant outflow pipe is connected with the first heat exchanger and the compressor; the capillary tube is connected with the first heat exchanger and the second heat exchanger, the capillary tube comprises a spiral section, and the spiral section is arranged outside the second refrigerant outflow pipe in a sleeving mode; according to the technical scheme provided by the invention, the miniaturization level of the drinking water equipment can be improved.

Description

Technical Field

[0001] This invention relates to the field of drinking water technology, and in particular to a drinking water device. Background Technology

[0002] With the development of drinking water equipment, its functions are becoming more and more numerous. Drinking water equipment includes compressors, condensers, and evaporators to realize the cooling function of drinking water equipment. Due to the large number of pipes between the compressor, condenser, and evaporator, the refrigerant pipes in the drinking water equipment are numerous and complex. This occupies a lot of installation space in the drinking water equipment to a certain extent, which is not conducive to the miniaturization of the drinking water equipment. Consequently, the space adaptability and production efficiency of the drinking water equipment are easily affected. Summary of the Invention

[0003] The main objective of this invention is to provide a drinking water device that aims to improve the miniaturization level of drinking water devices.

[0004] To achieve the above objectives, the drinking water device proposed in this invention includes:

[0005] compressor;

[0006] The second heat exchanger and the first heat exchanger are respectively located on the upper and lower sides of the compressor, and the second heat exchanger is connected to the compressor.

[0007] A second refrigerant outlet pipe connects the first heat exchanger and the compressor; and

[0008] A capillary tube connects the first heat exchanger and the second heat exchanger. The capillary tube includes a spiral section, which is sleeved on the outside of the second refrigerant outlet pipe.

[0009] In one embodiment, the gap between the inner wall of the spiral section and the second refrigerant outlet pipe is s, where 0mm≤s≤10mm.

[0010] In one embodiment, the inner diameter of the capillary is r, where 0.5 mm ≤ r ≤ 1.5 mm.

[0011] In one embodiment, the outer diameter of the second refrigerant outlet pipe is R, where 4mm ≤ R ≤ 10mm.

[0012] In one embodiment, the second refrigerant outlet pipe extends along the vertical direction of the compressor and is located on the side of the compressor.

[0013] In one embodiment, a drying filter is connected between the capillary tube and the second heat exchanger, the drying filter being close to the capillary tube and extending along the vertical direction of the compressor.

[0014] In one embodiment, the angle between the dryer filter and the compressor in the vertical direction is θ, where 0°≤θ≤45°.

[0015] In one embodiment, the first heat exchanger is configured as an evaporator, and the second heat exchanger is configured as a condenser.

[0016] In one embodiment, the drinking water device further includes a tank located above the compressor, and the first heat exchanger is fitted around the outer periphery of the tank.

[0017] In one embodiment, the tank is covered with an insulation box, and the insulation box is provided with clearance holes for the capillary tube and the second refrigerant outlet pipe to extend out.

[0018] In one embodiment, the drinking water device further includes a base, the compressor is mounted on the base, and the second heat exchanger is fixed to the base and spaced apart from the compressor.

[0019] In one embodiment, a bracket is connected to the base, the bracket including a mounting plate disposed above the compressor, and the tank is fixed to the side of the mounting plate opposite to the compressor.

[0020] In one embodiment, the mounting plate is provided with a clearance notch for avoiding the capillary tube and the second refrigerant outlet pipe.

[0021] In one embodiment, the mounting plate has an insertion hole, and the bottom of the tank has an insertion plate that engages with the insertion hole;

[0022] And / or, the tank body is connected to the mounting plate by fasteners.

[0023] In the technical solution of the present invention, the first heat exchanger and the second heat exchanger are respectively located on the upper and lower sides of the compressor, so that each component is arranged along the height direction of the drinking water equipment, which can effectively reduce the space occupied by the drinking water equipment in its horizontal direction, thereby improving the miniaturization level of the drinking water equipment.

[0024] By placing the capillary tube around the outer circumference of the second refrigerant outlet pipe via a spiral section, two advantages are achieved. First, it reduces the space occupied by both the capillary tube and the second refrigerant outlet pipe within the water dispenser, thereby improving the integration level of the internal refrigerant piping and further enhancing the miniaturization of the water dispenser. This improves the spatial adaptability of the water dispenser, allowing it to be applied to related equipment with refrigeration requirements, thus increasing production efficiency and reducing production costs. Second, under normal operating conditions, because the temperature at the capillary tube is lower than that at the second refrigerant outlet pipe, reliable heat exchange can occur due to the capillary tube's ring around the second refrigerant outlet pipe. This lowers the refrigerant temperature within the second refrigerant outlet pipe, improving the energy consumption of the downstream compressor. Simultaneously, it reliably ensures that the flash gas generated during or after refrigerant throttling within the capillary tube is minimized, thus improving the heat exchange efficiency of the first heat exchanger. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a structure of an embodiment of the drinking water device provided by the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of the intermediate drying filter in a vertical position;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of the intermediate drying filter when it is tilted;

[0029] Figure 4 for Figure 1 Assembly diagram of the compressor, evaporator and condenser;

[0030] Figure 5 This is a schematic diagram showing the parameters of the capillary tube and the second refrigerant outlet pipe.

[0031] Explanation of icon numbers:

[0032] 100. Drinking water equipment; 11. Base; 12. Bracket; 120. Installation space; 121. Socket; 122. Flanged edge plate; 125. Clearance notch; 126. Mounting plate;

[0033] 2. Tank body; 28. Slip plate;

[0034] 3. Compressor; 34. Stand; 34a. Foot plate; 34b. Foot pad;

[0035] 4. Condenser;

[0036] 5. Evaporator; 53. Refrigerant return pipe; 54. Capillary tube; 541. Spiral section;

[0037] 8. Dryer filter;

[0038] 7. Insulated box; 711. Clearance hole.

[0039] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] With the development of drinking water equipment 100, it has more and more functions. Drinking water equipment 100 includes compressor 3, condenser 4 and evaporator 5 to realize the cooling function of drinking water equipment 100. Due to the large number of pipes between compressor 3, condenser 4 and evaporator 5, the refrigerant pipes in drinking water equipment 100 are numerous and complex. This occupies a lot of installation space 120 in drinking water equipment 100 to a certain extent, which is not conducive to the miniaturization of drinking water equipment 100. Consequently, the space adaptability and production efficiency of drinking water equipment 100 are easily affected.

[0044] To solve this technical problem, the present invention proposes a drinking water device 100. It should be noted that the drinking water device 100 can be specifically configured as a water purifier, water dispenser or other device with a cooling function to meet the user's cold water needs.

[0045] Please see Figures 1 to 4 In one embodiment of the present invention, the drinking water device 100 includes a compressor 3, a first heat exchanger, a second heat exchanger, a second refrigerant outlet pipe 53, and a capillary tube 54; the first heat exchanger and the second heat exchanger are respectively disposed on the upper and lower sides of the compressor 3, and the second heat exchanger is connected to the compressor 3; the second refrigerant outlet pipe 53 connects the first heat exchanger and the compressor 3; the capillary tube 54 connects the first heat exchanger and the second heat exchanger, and the capillary tube 54 includes a spiral section 541, which is sleeved on the outside of the second refrigerant outlet pipe 53 to improve the miniaturization level of the drinking water device 100.

[0046] In the technical solution of the present invention, the first heat exchanger and the second heat exchanger are respectively arranged on the upper and lower sides of the compressor 3, so that each device is arranged along the height direction of the drinking water device 100, which can effectively reduce the space occupied by the drinking water device 100 in its horizontal direction, thereby improving the miniaturization level of the drinking water device 100.

[0047] By fitting the capillary tube 54 around the second refrigerant outlet pipe 53 via the spiral section 541, the space occupied by the capillary tube 54 and the second refrigerant outlet pipe 53 within the water dispenser 100 is reduced. This improves the integration level of the internal refrigerant piping and further enhances the miniaturization of the water dispenser 100, thus improving its spatial adaptability and enabling its application in related equipment requiring refrigeration. This also helps improve production efficiency and reduce production costs. Furthermore, under normal operating conditions, since the temperature at the capillary tube 54 is lower than that at the second refrigerant outlet pipe 53, and the capillary tube 54 is arranged around the second refrigerant outlet pipe 53, reliable heat exchange can occur. This not only lowers the refrigerant temperature within the second refrigerant outlet pipe 53, improving the energy consumption of the downstream compressor 3, but also reliably ensures that the flash gas generated during or after throttling of the refrigerant within the capillary tube 54 is minimized, thereby improving the heat exchange efficiency of the first heat exchanger.

[0048] Specifically, the capillary tube 54 has a smaller inner diameter, which can further condense the refrigerant flowing out of the second heat exchanger, reduce the generated flash gas, and at the same time control the refrigerant flow rate into the first heat exchanger to improve the heat exchange efficiency of the first heat exchanger. In turn, it helps to reduce the liquid refrigerant content entering the compressor 3 and reduce the possibility of liquid slugging caused by the refrigerant entering the compressor 3.

[0049] The capillary tube 54 includes a spiral section 541, which helps to reduce the space occupied by the capillary tube 54 and also facilitates the provision of space for the second refrigerant outlet pipe 53 to pass through, thus reducing the space occupied by both the capillary tube 54 and the second refrigerant outlet pipe 53. Furthermore, since the capillary tube 54 is arranged around the second refrigerant outlet pipe 53 in the circumference, it can increase the heat exchange area and improve the heat exchange efficiency to a certain extent.

[0050] It should be noted that the first and second heat exchangers are arranged at intervals along the vertical direction of the compressor 3, with the compressor 3 positioned between the first and second heat exchangers to reduce the lateral dimension of the water dispenser 100. Specifically, when the first heat exchanger is configured as an evaporator 5 and the second heat exchanger as a condenser 4, and the first heat exchanger is positioned above the second heat exchanger, heat exchange between the first heat exchanger and the water storage tank located above the compressor 3 can meet the user's cold water needs. Alternatively, when the second heat exchanger is positioned above the first heat exchanger, heat exchange between the second heat exchanger and the water storage tank located above the compressor 3 can meet the user's hot water needs. Therefore, the specific positions of the first and second heat exchangers can be selectively set according to requirements to meet different user needs, and no restrictions are imposed here.

[0051] Please see Figure 4In an embodiment of the invention, the gap between the inner wall of the spiral segment 541 and the second refrigerant outlet pipe 53 is s, 0mm≤s≤10mm, to ensure that the space occupied by the capillary tube 54 and the second refrigerant outlet pipe 53 is minimized. Specifically, when the gap between the inner wall of the spiral segment 541 and the second refrigerant outlet pipe 53 is 0, the capillary tube 54 completely encloses the second refrigerant outlet pipe 53. At this time, the effective contact area between the two is maximized, the heat exchange efficiency is high, and the space occupied is minimized. When the gap between the tubes 53 is greater than 10mm, it is not conducive to reducing the space occupied by the capillary tube 54 and the second refrigerant outlet tube 53 within the water drinking equipment 100, and it is also not conducive to the refrigeration treatment of the refrigerant circuit tube by the capillary tube 54. Therefore, limiting the gap between the inner wall of the spiral section 541 and the second refrigerant outlet tube 53 to between 0mm and 10mm can minimize the space occupied by the capillary tube 54 and the second refrigerant outlet tube 53, and also ensure the refrigeration treatment of the refrigerant circuit tube by the capillary tube 54, which helps to reduce the energy consumption of the downstream compressor 3.

[0052] The specific values ​​of the gap between the inner wall of the spiral section 541 and the second refrigerant outlet pipe 53 include, but are not limited to, 0mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm.

[0053] Specifically, in the embodiments of the present invention, the inner diameter of the capillary tube 54 is r, 0.5mm≤r≤1.5mm, to ensure the condensation and throttling effects of the capillary tube 54. Specifically, the inner diameter of the capillary tube 54 remains consistent along its extension direction to ensure the flow of refrigerant within the capillary tube 54 and the realization of the corresponding effects. When the inner diameter of the capillary tube 54 is less than 0.5mm, it is easy to reduce the refrigerant flow rate into the first heat exchanger, affecting the heat exchange effect of the first heat exchanger. When the inner diameter of the capillary tube 54 is greater than 1.5mm, it is easy to increase the overall volume of the capillary tube 54, and at the same time, it is easy to increase flash gas, affecting the heat exchange efficiency of the first heat exchanger. Therefore, setting the inner diameter of the capillary tube 54 between 0.5mm and 1.5mm can further condense the refrigerant flowing out of the second heat exchanger, reducing the generated flash gas, while reliably controlling the refrigerant flow rate into the first heat exchanger, thereby improving the heat exchange efficiency of the first heat exchanger. In this embodiment, the inner diameter of the capillary 54 is 1 mm, and the wall thickness of the capillary 54 is 0.5 mm.

[0054] The specific values ​​of the inner diameter of the capillary tube 54 include, but are not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, and 1.5mm.

[0055] Specifically, in the embodiments of the present invention, the outer diameter of the second refrigerant outlet pipe 53 is R, where 4mm≤R≤10mm. While ensuring reliable refrigerant return, the volume of the second refrigerant outlet pipe 53 is reduced. Specifically, when the outer diameter of the second refrigerant outlet pipe 53 is less than 4mm, it is easy to prolong the time for the refrigerant to return to the compressor 3. When the outer diameter of the second refrigerant outlet pipe 53 is greater than 10mm, it is easy to increase the volume of the second refrigerant outlet pipe 53, affecting miniaturization. Therefore, limiting the outer diameter of the second refrigerant outlet pipe 53 to between 4mm and 10mm can both ensure the refrigerant return efficiency and reduce the volume of the second refrigerant outlet pipe 53. Combined with 0mm≤R≤10mm, this helps to achieve miniaturization of the water dispenser 100.

[0056] The specific values ​​of the outer diameter of the second refrigerant outlet pipe 53 include, but are not limited to, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, and 10mm.

[0057] Optionally, in an embodiment of the present invention, the second refrigerant outlet pipe 53 extends along the vertical direction of the compressor 3 and is located on the side of the compressor 3. This arrangement facilitates the winding of the capillary tube 54 and makes reasonable use of the side space of the compressor 3. It can be understood that the refrigerant flow direction in the second refrigerant outlet pipe 53 is from bottom to top or from top to bottom. The second refrigerant outlet pipe 53 may include a first pipe section and a second pipe section laterally connected to the first pipe section. The first pipe section is connected to the first heat exchanger, and the second pipe section is connected to the compressor 3. The spiral section 541 is fitted on the first pipe section and / or the second pipe section to facilitate support of the spiral section 541 and reduce the possibility of the spiral section 541 shifting or deforming. Of course, the second refrigerant outlet pipe 53 may also be inclined as a whole.

[0058] Please see Figure 2 In an embodiment of the present invention, a dryer filter 8 is connected between the capillary tube 54 and the second heat exchanger. The dryer filter 8 is disposed close to the capillary tube 54 and extends along the vertical direction of the compressor 3. Thus, by disposing of the dryer filter 8 upstream of the capillary tube 54, impurities entering the capillary tube 54 are reduced, the possibility of blockage in the capillary tube 54 is reduced, and the functional failure of the capillary tube 54 is avoided. This facilitates the smooth flow of refrigerant. Furthermore, since the dryer filter 8 is disposed near the capillary tube 54, the dryer filter 8 and the capillary tube 54 are made compact, which helps to reduce space occupation and facilitates the miniaturization of the water drinking equipment 100.

[0059] Specifically, the angle between the dryer filter 8 and the compressor 3 in the vertical direction is θ, where 0°≤θ≤45°. This arrangement, while ensuring the normal operation of the dryer filter 8, allows it to be placed as close as possible to the capillary tube 54. This is understandable. Figure 2 As shown, the dryer filter 8 extends parallel to the vertical direction of the compressor 3, allowing it to be positioned as close as possible to the capillary tube 54, thus improving the compactness of the design; Figure 3 As shown, the dryer filter 8 can also be installed at an overall angle, that is, the dryer filter 8 and the compressor 3 have an angle θ between them in the vertical direction, where θ is greater than 0° and less than or equal to 45°. Compared with the horizontal placement of the dryer filter 8, the horizontal space occupied can be reduced to a certain extent.

[0060] Please refer to 1 to 3. In the embodiments of the present invention, the first heat exchanger is configured as an evaporator 5, and the second heat exchanger is configured as a condenser 4. Since the first heat exchanger and the second heat exchanger are arranged in the vertical direction of the compressor 3, the evaporator 5 is located above the condenser 4. Thus, the evaporator 5 is located above the compressor 3, and the condenser 4 is located below the compressor 3. The refrigerant flow direction in the capillary tube 54 is from bottom to top, and the refrigerant flow direction in the second refrigerant outlet pipe 53 is from top to bottom.

[0061] Furthermore, in an embodiment of the present invention, the drinking water device 100 further includes a tank 2 disposed above the compressor 3, and the first heat exchanger is fitted around the outer periphery of the tank 2 to meet the user's cold water needs; wherein, because the heat exchange surface of the first heat exchanger is in contact with the outer periphery of the tank 2, there is a large heat exchange area between the tank 2 and the first heat exchanger, which allows the refrigerant in the evaporator 5 to fully absorb the heat of the liquid in the tank 2, thereby achieving rapid cooling and improving the heat exchange efficiency of the evaporator 5.

[0062] Furthermore, in an embodiment of the present invention, the tank 2 is covered with an insulation box 7, and the insulation box 7 is provided with a clearance hole 711 for the capillary tube 54 and the second refrigerant outlet pipe 53 to extend out. On the one hand, by using the insulation box 7 in conjunction with the evaporator 5, the cold water in the tank 2 is always kept at a low temperature, which helps to reduce energy consumption. On the other hand, by opening the clearance hole 711, the capillary tube 54 and the second refrigerant outlet pipe 53 pass through the clearance hole 711, realizing the connection between the evaporator 5 and the condenser 4, and the connection between the evaporator 5 and the compressor 3. The clearance hole 711 can be located at the bottom of the insulation box 7. In this case, the insulation box 7 is matched with the second refrigerant outlet pipe 53 to cover the outside of the second refrigerant outlet pipe 53, ensuring heat exchange effect. Alternatively, the clearance hole 711 can be located at the bottom and adjacent side of the insulation box 7. In this case, due to the limitation of the radial dimension of the second refrigerant outlet pipe 53, the clearance hole 711 located on the side is exposed above the second refrigerant outlet pipe 53, which facilitates the processing of the insulation box 7. Optionally, the insulation box 7 is made of foam material.

[0063] Please see Figure 1 In an embodiment of the present invention, the drinking water device 100 further includes a base 11, the compressor 3 is mounted on the base 11, and the second heat exchanger is fixed to the base 11 and spaced apart from the compressor 3. It can be understood that the second heat exchanger (i.e., the condenser 4) can be embedded in the base 11 or disposed on the upper surface of the base 11. When the condenser 4 is embedded in the base 11, the space inside the base 11 can be utilized to a certain extent, improving the integration and reducing the volume of the drinking water device 100, thus achieving miniaturization of the drinking water device 100. Of course, it also facilitates the spaced arrangement of the compressor 3 and the condenser 4, thereby facilitating reliable heat dissipation of the condenser 4 and improving the safety of the compressor 3 and the condenser 4 in use.

[0064] The compressor 3 is fixed to the base 11 by the bracket 34, which simplifies the assembly steps of the compressor 3 and improves the assembly efficiency. The bracket 34 includes a foot plate 34a for supporting and fixing the compressor 3, and a foot pad 34b for connecting the base 11 and the foot plate 34a. The foot pad 34b has elastic deformation capability to absorb the vibration generated by the compressor 3 during operation. The foot pad 34b can be used to fix the base 11 and the foot plate 34a relatively by means of plug-in or bolt connection. The foot pad 34b can be specifically configured as a shock absorber.

[0065] Please see Figures 2 to 3In an embodiment of the present invention, a bracket 12 is connected to the base 11. The bracket 12 includes a mounting plate 126 disposed above the compressor 3. The tank 2 is fixed to the side of the mounting plate 126 away from the compressor 3. It can be understood that the bracket 12 is arched. The bracket 12 and the base 11 are connected and enclose an installation space 120 for assembling the compressor 3 and related refrigerant pipes. The compressor 3 is disposed in the installation space 120, and the mounting plate 126 of the bracket 12 is located above the compressor 3. The tank 2 is disposed on the side of the mounting plate 126 away from the compressor 3, that is, outside the installation space 120, which can reduce the possibility of heat exchange between the heat in the installation space 120 and the tank 2 and reduce heat interference. The mounting plate 126 is spaced apart from the compressor 3 to reduce the possibility of interference between the insert plate 28 and other devices extending into the installation space 120 and the compressor 3.

[0066] Specifically, such as Figure 3 As shown, the mounting plate 126 is provided with a clearance notch 125 to avoid the capillary tube 54 and the second refrigerant outlet pipe 53, so as to ensure that the extension of the capillary tube 54 and the second refrigerant outlet pipe 53 is not interfered with by the mounting plate 126. The clearance notch 125 is located directly below the clearance hole 711, which allows for the insertion of a shorter pipe length, simplifying the structure of the capillary tube 54 and the second refrigerant outlet pipe 53; the clearance notch 125 can be formed on the edge of the mounting plate 126, or it can be set away from the edge of the mounting plate 126.

[0067] Please see Figure 3 In an embodiment of the present invention, the mounting plate 126 has an insertion hole 121, and the bottom of the tank body 2 is provided with an insertion plate 28 that is inserted into the insertion hole 121. The insertion hole 121 is a through hole. The connection method between the insertion plate 28 and the tank body 2 includes, but is not limited to, welding, bonding, and snap-fitting. The insertion plates 28 correspond one-to-one with the insertion holes 121, and there are multiple insertion plates in an array, which helps to improve the installation stability of the tank body 2. Furthermore, when an insulation box 7 is provided outside the tank body 2, the insertion plate 28 extends through the insulation box 7 to ensure the connection between the insertion plate 28 and the mounting plate 126.

[0068] Furthermore, to further improve installation stability, in this embodiment of the invention, the tank body 2 and the mounting plate 126 are connected by fasteners, which may include bolts, pins, etc. The edge of the insertion hole 121 is provided with a downwardly bent flange 122. When the insertion plate 28 is inserted into the insertion hole 121, the insertion plate 28 and the flange 122 fit together. Then, by the fastener penetrating the insertion plate 28 and the flange, the tank body 2 can be assembled. After assembly, an assembly gap is left between the tank body 2 and the mounting plate 126 to facilitate the installation of the insulation box 7. However, in other embodiments, the insertion plate 28 can also be bent to fit into the insertion hole 121, or a mounting bracket on the mounting plate 126 can be used to fit and engage the insertion plate 28, which can also achieve the effect of strengthening the connection.

[0069] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A drinking water device, characterized in that, include: compressor; The first heat exchanger and the second heat exchanger are respectively located on the upper and lower sides of the compressor, and the second heat exchanger is connected to the compressor. The second refrigerant outlet pipe connects the first heat exchanger and the compressor; as well as A capillary tube connects the first heat exchanger and the second heat exchanger. The capillary tube includes a spiral section, which is sleeved on the outside of the second refrigerant outlet pipe.

2. The drinking water equipment as described in claim 1, characterized in that, The gap between the inner wall of the spiral section and the second refrigerant outlet pipe is s, where 0mm≤s≤10mm.

3. The drinking water equipment as described in claim 2, characterized in that, The inner diameter of the capillary tube is r, where 0.5mm ≤ r ≤ 1.5mm.

4. The drinking water equipment as described in claim 2, characterized in that, The outer diameter of the second refrigerant outlet pipe is R, where 4mm ≤ R ≤ 10mm.

5. The drinking water equipment as described in claim 1, characterized in that, The second refrigerant outlet pipe extends along the vertical direction of the compressor and is located on the side of the compressor.

6. The drinking water equipment as described in claim 1, characterized in that, A drying filter is connected between the capillary tube and the second heat exchanger. The drying filter is located close to the capillary tube and extends along the vertical direction of the compressor.

7. The drinking water equipment as described in claim 6, characterized in that, The angle between the dryer filter and the compressor in the vertical direction is θ, where 0°≤θ≤45°.

8. The drinking water equipment as described in claim 1, characterized in that, The first heat exchanger is configured as an evaporator, and the second heat exchanger is configured as a condenser.

9. The drinking water equipment as described in claim 8, characterized in that, The drinking water equipment also includes a cold tank located above the compressor, and the first heat exchanger is fitted around the outer periphery of the cold tank.

10. The drinking water equipment as described in claim 9, characterized in that, The cold tank is covered with an insulation box, and the insulation box is provided with clearance holes for the capillary tube and the second refrigerant outlet pipe to extend out.

11. The drinking water equipment as described in claim 9, characterized in that, The drinking water equipment also includes a base, the compressor is mounted on the base, and the second heat exchanger is fixed to the base and spaced apart from the compressor.

12. The drinking water equipment as described in claim 11, characterized in that, A bracket is connected to the base, and the bracket includes a mounting plate located above the compressor. The cold tank is fixed to the side of the mounting plate opposite to the compressor.

13. The drinking water equipment as described in claim 12, characterized in that, The mounting plate is provided with a clearance notch to avoid the capillary tube and the second refrigerant outlet pipe.

14. The drinking water equipment as described in claim 12, characterized in that, The mounting plate has an insertion hole, and the bottom of the cold tank has an insertion plate that is inserted into the insertion hole; And / or, the cold tank is connected to the mounting plate by fasteners.

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