Water purification tank assembly and water purification machine

Abstract

The present invention relates to a water purification tank assembly and a water purification machine, comprising: a water purification tank body, the water purification tank body is provided with an installation opening, the installation opening penetrates the internal space and external space of the water purification tank body; a heat exchange component, the heat exchange component has a heat exchange channel, the heat exchange component is provided with a joint, the channel in the joint is communicated with the heat exchange channel, the heat exchange component is arranged in the water purification tank body, and the joint is inserted in the installation opening; a sealing ring, the sealing ring is pressed between the joint and the water purification tank body. When the heat exchange component is installed in the water purification tank body, the sealing ring is pressed between the joint and the water purification tank body, thereby ensuring that the heat exchange component is installed stably, and the sealing ring can seal the installation opening to avoid water leakage.

Description

Technical Field

[0001] The invention relates to the technical field of water purification equipment, in particular to a water purification tank assembly and a water purifier. Background Art

[0002] With the improvement of people's living standards and the development of technology in the field of water purification equipment, water purification equipment that can provide boiled water has become the main research direction. Water purification equipment filters tap water to obtain pure water, and pure water is heated to boil and then cooled to obtain boiled water. In order to accelerate the cooling process of boiling water, heat exchange components can be added to the water purification equipment, and boiling water can be injected into the heat exchange components to release heat and quickly cool down. However, the heat exchange components in the water purification equipment are unstable and leaking. Summary of the invention

[0003] Aiming at the problem of unstable installation and water leakage of components used to reduce the temperature of boiling water, the present invention proposes a water purification tank assembly and a water purifier to improve stability and avoid water leakage.

[0004] A clean water tank assembly, comprising:

[0005] A water purification tank body, wherein the water purification tank body is provided with an installation opening, and the installation opening penetrates the inner space and the outer space of the water purification tank body;

[0006] A heat exchange component, wherein the heat exchange component has a heat exchange channel, the heat exchange component is provided with a joint, the channel in the joint is communicated with the heat exchange channel, the heat exchange component is arranged in the water purification tank body, and the joint is inserted into the installation port;

[0007] A sealing ring is pressed between the joint and the clean water tank body.

[0008] The above scheme provides a clean water tank assembly, wherein the heat exchange component is directly arranged in the clean water tank body, so that the pure water in the clean water tank body can absorb the heat of the hot water in the heat exchange channel. When the heat exchange component is installed in the clean water tank body, the sealing ring is pressed between the joint and the clean water tank body, thereby ensuring that the heat exchange component is installed stably, and the sealing ring can seal the installation port to prevent water leakage.

[0009] In one embodiment, a limit member is provided on the water purification tank body, and the limit member includes a connecting portion and a limit member that are interconnected, the connecting portion connects the limit member and the water purification tank body, and the limit member and the water purification tank body are spaced apart in the insertion direction of the joint into the installation port to form a limit gap, and the sealing ring is partially limited in the limit gap.

[0010] In one embodiment, the limiting gap is arc-shaped, and the arc-shaped limiting gap surrounds the outer circumference of the installation opening, and a portion of the arc-shaped edge of the sealing ring is located in the limiting gap.

[0011] In one embodiment, the limiting member is arranged on the inner wall of the water purification tank body, the limiting portion is a rib, the rib surrounds the outer periphery of the installation port along an arc path, and the limiting gap is formed between the rib and the inner wall surface of the water purification tank body.

[0012] In one embodiment, the water purification tank body is provided with two installation ports, the heat exchange component includes a heat exchange tube, the heat exchange channel is a channel surrounded by the heat exchange tube, the joint is a connecting pipe section arranged at the end of the heat exchange tube, both ends of the heat exchange tube are provided with the connecting pipe section, the two connecting pipe sections are respectively inserted into the two installation ports, each of the connecting pipe sections is covered with the sealing ring, and the sealing ring is pressed between the connecting pipe section and the side wall of the installation port;

[0013] The limiting portion includes two ribs, one of which surrounds the outer periphery of one of the installation ports along an arc path, and the other rib surrounds the outer periphery of the other installation port along an arc path. The two ribs are connected, and each rib is spaced from the inner wall surface of the clean water tank body to form a limiting gap, and the sealing ring is arranged one-to-one with the limiting gap.

[0014] In one embodiment, the heat exchange component includes a heat exchange tube, the heat exchange channel is a channel surrounded by the heat exchange tube, the joint is a connecting pipe section arranged at the end of the heat exchange tube, the connecting pipe section is inserted into the installation port, the connecting pipe section is covered with the sealing ring, and the sealing ring is pressed between the connecting pipe section and the side wall of the installation port;

[0015] The inner wall surface of the water purification tank body is provided with a positioning protrusion, the positioning protrusion is provided with a positioning groove, and the heat exchange tube is placed in the positioning groove.

[0016] In one of the embodiments, the heat exchange tube includes a bent tube section that is bent back and forth multiple times, and the positioning protrusion is a positioning rib, and the positioning rib forms a closed circle on the inner wall surface of the water purification tank body, and one end surface of the circle surrounded by the positioning rib is connected to the inner wall surface of the water purification tank body, and the bent tube section is placed on the other end surface of the circle surrounded by the positioning rib, and the positioning groove is provided at the position on the positioning rib that contacts the bent tube section.

[0017] In one of the embodiments, a pressure plate is further provided in the water purification tank body, and the pressure plate is arranged on the side of the bent pipe section away from the positioning rib, and the pressure plate is snap-fitted with the positioning rib, and the bent pipe section is pressed tightly between the positioning rib and the pressure plate.

[0018] In one embodiment, a notch is provided on the pressing plate at a position opposite to the circle surrounded by the positioning ribs;

[0019] And / or, the plane where the axis of the bent tube segment lies is parallel to the pressing plate.

[0020] In one of the embodiments, one of the pressure plate and the clean water tank body is provided with a guide protrusion, and the other is provided with a guide groove, the guide protrusion is inserted into the guide groove, and the guide protrusion is located in the circle surrounded by the positioning rib.

[0021] A water purifier comprises the above-mentioned water purification tank assembly.

[0022] The above scheme provides a water purifier, which uses the water purification tank assembly described in any of the above embodiments, and uses the pure water in the water purification tank body as a cold source to absorb the heat of the hot water in the heat exchange channel. The sealing ring is further provided between the joint and the water purification tank body, which, on the one hand, improves the stability of the installation of the heat exchange component in the water purification tank body, and on the other hand, effectively avoids water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is an exploded view of the water purification tank assembly described in this embodiment;

[0026] Figure 2 This is a schematic diagram of the structure of the water purification tank assembly described in this embodiment after the top cover and the pressure plate are hidden;

[0027] Figure 3 This is a schematic diagram of the structure of the bottom box described in this embodiment;

[0028] Figure 4 Schematic diagram of the structure of the pressing plate described in this embodiment.

[0029] Description of reference numerals:

[0030] 10. Water purification tank assembly; 11. Water purification tank body; 111. Bottom box; 1111. Installation port; 112. Top cover; 113. Water storage space; 12. Limiting member; 121. Limiting portion; 122. Connecting portion; 123. Limiting gap; 13. Heat exchange component; 131. Bent pipe section; 132. Joint; 14. Positioning protrusion; 141. Positioning groove; 142. Buckle position; 15. Press plate; 151. Notch; 152. Guide protrusion; 16. Sealing ring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] like Figure 1 and Figure 2 As shown, in one embodiment, a clean water tank assembly 10 is provided, comprising:

[0033] A water purification tank body 11, wherein the water purification tank body 11 is provided with an installation opening 1111, and the installation opening 1111 penetrates the inner space and the outer space of the water purification tank body 11;

[0034] The heat exchange component 13 has a heat exchange channel therein, and the heat exchange component 13 is provided with a joint 132, the channel in the joint 132 is connected to the heat exchange channel, the heat exchange component 13 is arranged in the water purification tank body 11, and the joint 132 is inserted into the installation port 1111.

[0035] The heat exchange component 13 is directly arranged in the water purification tank body 11, so that the pure water in the water purification tank body 11 can absorb the heat of the hot water in the heat exchange channel.

[0036] Further, in one embodiment, if Figure 2 As shown, the clean water tank assembly 10 further includes a sealing ring 16 , and the sealing ring 16 is pressed between the joint 132 and the clean water tank body 11 .

[0037] The above scheme provides a water clean tank assembly 10, when the heat exchange component 13 is installed in the water clean tank body 11, the sealing ring 16 is pressed between the joint 132 and the water clean tank body 11, thereby ensuring that the heat exchange component 13 is installed stably, and the sealing ring 16 can seal the installation port 1111 to avoid water leakage.

[0038] Specifically, in one embodiment, Figure 1 and Figure 2 As shown, the heat exchange component 13 is a tubular structure, and the heat exchange channel is an internal channel of the tubular structure.

[0039] For example, in one embodiment, Figure 1 and Figure 2 As shown, the heat exchange component 13 includes a heat exchange tube, and the heat exchange channel is a channel surrounded by the heat exchange tube. The joint 132 is a connecting pipe section arranged at the end of the heat exchange tube, and the connecting pipe section is inserted into the installation port 1111. The connecting pipe section is covered with the sealing ring 16, and the sealing ring 16 is pressed between the connecting pipe section and the side wall of the installation port 1111.

[0040] Optionally, in other embodiments, the heat exchange component 13 may also be in other shapes, such as a plate-like structure, which is not specifically limited here.

[0041] Further, in one embodiment, if Figure 2 and Figure 3 As shown, a limiting member 12 is provided on the water purification tank body 11, and the limiting member 12 includes a connecting portion 122 and a limiting portion 121 that are interconnected, and the connecting portion 122 connects the limiting portion 121 and the water purification tank body 11, and in the insertion direction of the joint 132 into the installation port 1111, the limiting portion 121 and the water purification tank body 11 are spaced apart to form a limiting gap 123, and the sealing ring 16 is partially limited in the limiting gap 123.

[0042] like Figure 2 As shown, when the joint 132 is inserted into the installation opening 1111, the sealing ring 16 is pressed between the joint 132 and the side wall of the installation opening 1111, and part of the structure of the sealing ring 16 is located in the limiting gap 123, so that the sealing ring 16 cannot move back and forth in the insertion direction of the joint 132 into the installation opening 1111, ensuring that the sealing ring 16 can be reliably located between the joint 132 and the side wall of the installation opening 1111. The stability of the joint 132 and the heat exchange component 13 in the water purification tank assembly 10 is improved.

[0043] Furthermore, in another embodiment, the limiting member 12 further includes a reinforcing portion, the reinforcing portion connecting the limiting portion 121 and the water purification tank body 11 , and the limiting gap 123 is a groove opening toward the side where the installation port 1111 is located.

[0044] Specifically, Figure 2 and Figure 3 As shown, in one embodiment, the limiting gap 123 is arc-shaped, and the arc-shaped limiting gap 123 surrounds the outer periphery of the installation opening 1111 , and a portion of the arc-shaped edge of the sealing ring 16 is located in the limiting gap 123 .

[0045] By designing the limiting gap 123 to be arc-shaped, the arc-shaped edge of the sealing ring 16 can be more closely positioned in the limiting gap 123, while also providing a greater limiting force for the sealing ring 16, so that the sealing ring 16 can be more stably and reliably positioned between the joint 132 and the side wall of the installation opening 1111.

[0046] More specifically, if Figure 2 and Figure 3 As shown, the arc path where the limiting gap 123 is located does not go around the installation opening 1111. The position outside the installation opening 1111 not covered by the limiting member 12 can facilitate the sealing ring 16 to be inserted into the installation opening 1111 during installation.

[0047] Furthermore, in one embodiment, the central angle of the arc path where the limiting gap 123 is located is not greater than 180°.

[0048] Furthermore, in one embodiment, the heat exchange component 13 is offset on one side of the installation opening 1111, such as Figure 2 As shown, the center of gravity of the heat exchange component 13 is offset to one side of the installation opening 1111. The stopper 12 is located on one side of the installation opening 1111 close to the center of gravity of the heat exchange component 13.

[0049] More specifically, in one embodiment, Figures 1 to 3 As shown, the stopper 12 is disposed on the inner wall of the water purification tank body 11. Optionally, in other embodiments, the stopper 12 may also be located on the outer wall of the water purification tank body 11.

[0050] Specifically, Figures 1 to 3 As shown, in one embodiment, the limiting portion 121 is a rib, and the rib surrounds the outer circumference of the installation opening 1111 along an arc path. The limiting member 12 is arranged on the inner wall of the water purification tank body 11, and the rib and the inner wall surface of the water purification tank body 11 are spaced to form the limiting gap 123.

[0051] More specifically, in one embodiment, Figures 1 to 3 As shown, the water purification tank body 11 is provided with two installation ports 1111. The heat exchange component 13 includes a heat exchange tube, the heat exchange channel is a channel surrounded by the heat exchange tube, and the joint 132 is a connecting pipe section arranged at the end of the heat exchange tube. The connecting pipe sections are provided at both ends of the heat exchange tube, and the two connecting pipe sections are respectively inserted into the two installation ports 1111. Each of the connecting pipe sections is covered with the sealing ring 16, and the sealing ring 16 is pressed between the connecting pipe section and the side wall of the installation port 1111.

[0052] like Figure 2 and Figure 3 As shown, the limiting portion 121 includes two ribs, one of which surrounds the outer periphery of one of the installation openings 1111 along an arc path, and the other rib surrounds the outer periphery of the other installation opening 1111 along an arc path. The two ribs are connected, and each rib is spaced apart from the inner wall surface of the clean water tank body 11 to form a limiting gap 123, and the sealing ring 16 is arranged one-to-one with the limiting gap 123.

[0053] Boiling water enters the heat exchange tube from one of the connecting pipe sections, and warm water or boiled water after heat exchange in the water purification tank body 11 flows out of the heat exchange tube from another connecting pipe section, providing drinking water of the required temperature for users.

[0054] like Figures 1 to 3 As shown, the two installation openings 1111 are arranged adjacent to each other, and the two ribs are connected to form two arc-shaped strips. The connecting parts 122 are provided at both ends of the two arc-shaped strips and at the connection between the two ribs.

[0055] Further, in one embodiment, if Figures 1 to 3 As shown, the heat exchange component 13 includes a heat exchange tube, the heat exchange channel is a channel surrounded by the heat exchange tube, the joint 132 is a connecting pipe section arranged at the end of the heat exchange tube, the connecting pipe section is inserted into the installation port 1111, and the connecting pipe section is covered with the sealing ring 16, and the sealing ring 16 is pressed between the connecting pipe section and the side wall of the installation port 1111;

[0056] The inner wall surface of the water purification tank body 11 is provided with a positioning protrusion 14 , and the positioning protrusion 14 is provided with a positioning groove 141 , and the heat exchange tube is placed in the positioning groove 141 .

[0057] The positioning protrusion 14 can provide support for the heat exchange tube, so that the heat exchange tube is more stably located in the water purification tank body 11.

[0058] In particular, when the center of gravity of the heat exchange tube is offset to one side of the installation opening 1111, under the support of the positioning protrusion 14, the bending moment between the joint 132 and the installation opening 1111 is small, which effectively improves the sealing performance there.

[0059] Specifically, Figure 2 and Figure 3 As shown, the positioning protrusion 14 is located on a side of the installation opening 1111 close to the center of gravity of the heat exchange tube.

[0060] Further, in one embodiment, if Figure 1 and Figure 2 As shown, the heat exchange tube includes a bent tube section 131 that is bent back and forth for multiple times. The bent tube section 131 is stacked on the positioning protrusion 14, and the positioning groove 141 is provided at the position of the positioning protrusion 14 that contacts the bent tube section 131.

[0061] Specifically, Figure 1 and Figure 2 As shown, the positioning protrusion 14 is a positioning rib, and the positioning rib forms a closed circle on the inner wall surface of the water purification tank body 11. One end face of the circle surrounded by the positioning rib is connected to the inner wall surface of the water purification tank body 11, and the bent pipe segment 131 is placed on the other end face of the circle surrounded by the positioning rib. The positioning groove 141 is provided at the position on the positioning rib that contacts the bent pipe segment 131, so that the position of the heat exchange tube in the radial direction of the bent pipe segment 131 is relatively fixed.

[0062] Furthermore, if Figure 2 and Figure 3 As shown, in one embodiment, the axis of the bent tube segment 131 is located on a plane. The bent tube segment 131 lies flat on the positioning rib. The outer diameter of each part of the bent tube segment 131 is consistent, the depth of each positioning groove 141 is consistent, and the side wall of each positioning groove 141 abuts against the tube wall of the bent tube segment 131.

[0063] Furthermore, if Figure 1 and Figure 4 As shown, in one embodiment, a pressing plate 15 is further provided in the water purification tank body 11, and the pressing plate 15 is arranged on the side of the bent pipe section 131 away from the positioning convex rib, and the pressing plate 15 is snap-fitted with the positioning convex rib, and the bent pipe section 131 is pressed tightly between the positioning convex rib and the pressing plate 15. Under the limiting action of the pressing plate 15 and the positioning convex rib, the position of the bent pipe section 131 in the water purification tank body 11 is relatively stable and will not be offset.

[0064] Further, in one embodiment, if Figure 1As shown, the water purification tank body 11 includes a bottom box 111 and a top cover 112 disposed on the bottom box 111. The bottom box 111 and the top cover 112 enclose a water storage space 113 for holding pure water. The heat exchange component 13 is located in the water storage space 113. The installation opening 1111 is formed on the bottom box 111, the stopper 12 is disposed on the bottom box 111, and the positioning protrusion 14 is disposed on the bottom box 111.

[0065] During installation, the heat exchange tube, the joint 132 and the sealing ring 16 can be assembled in place first, and then the pressing plate 15 can be snap-fitted onto the positioning protrusion 14 to press the heat exchange tube. After the pressing plate 15 is installed in place, the top cover 112 and the bottom box 111 are connected together.

[0066] Furthermore, if Figure 1 and Figure 4 As shown, in one embodiment, a notch 151 is provided on the pressing plate 15 at a position opposite to the circle surrounded by the positioning convex ribs. This can increase the contact area between the heat exchange component 13 and the pure water in the water purification tank body 11, thereby improving the heat exchange effect.

[0067] Specifically, Figures 2 to 3 As shown, in one embodiment, the positioning rib is provided with a plurality of snap-fitting positions 142 that snap-fit ​​with the pressure plate 15 , and the plurality of snap-fitting positions 142 are arranged at intervals along the circle surrounded by the positioning rib.

[0068] Furthermore, in one embodiment, the plane where the axis of the bent tube section 131 is located is parallel to the pressing plate 15. Therefore, when the pressing plate 15 is snap-fitted onto the positioning rib, all parts of the bent tube section 131 can be in contact with the pressing plate 15 and be limited.

[0069] Further, in one embodiment, if Figure 3 and Figure 4 As shown, one of the pressing plate 15 and the clean water tank body 11 is provided with a guide protrusion 152, and the other is provided with a guide groove, the guide protrusion 152 is inserted into the guide groove, and the guide protrusion 152 is located in the circle surrounded by the positioning rib.

[0070] When the pressing plate 15 is snap-fitted with the positioning protrusion 14 , the guiding protrusion 152 is first aligned with the guiding groove, and then the pressing plate 15 is pressed to quickly and accurately complete the installation of the pressing plate 15 .

[0071] Furthermore, in yet another embodiment, a beverage purifier is provided, comprising the above-mentioned water purification tank assembly 10.

[0072] The above scheme provides a water purifier, which uses the water purification tank assembly 10 described in any of the above embodiments, and uses the pure water in the water purification tank body 11 as a cold source to absorb the heat of the hot water in the heat exchange channel. The sealing ring 16 is further provided between the joint 132 and the water purification tank body 11, which, on the one hand, improves the stability of the installation of the heat exchange component 13 in the water purification tank body 11, and on the other hand, effectively avoids water leakage.

[0073] Furthermore, in one embodiment, the water purifier further includes a filter assembly, and the water purification tank body 11 is provided with a water inlet and a water outlet, the water inlet is connected to the pure water outlet of the filter assembly, and the water outlet is connected to the water nozzle.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A clean water tank assembly, characterized in that: include: A water purification tank body, wherein the water purification tank body is provided with an installation opening, and the installation opening penetrates the inner space and the outer space of the water purification tank body; A heat exchange component, wherein the heat exchange component has a heat exchange channel, the heat exchange component is provided with a joint, the channel in the joint is communicated with the heat exchange channel, the heat exchange component is arranged in the water purification tank body, and the joint is inserted into the installation port; A sealing ring, the sealing ring is pressed between the joint and the clean water tank body; A limiting member is provided on the water purification tank body, and the limiting member includes a connecting portion and a limiting portion that are interconnected, the connecting portion connects the limiting portion and the water purification tank body, and the limiting portion and the water purification tank body are spaced apart in the insertion direction of the joint into the installation port to form a limiting gap, and the sealing ring is partially limited in the limiting gap.

2. The clean water tank assembly according to claim 1, characterized in that: The limiting gap is arc-shaped, and the arc-shaped limiting gap surrounds the outer periphery of the installation opening, and a part of the arc-shaped edge of the sealing ring is located in the limiting gap.

3. The clean water tank assembly according to claim 2, characterized in that: The limiting member is arranged on the inner wall of the water purification tank body, the limiting part is a rib, the rib surrounds the outer periphery of the installation opening along an arc path, and the limiting gap is formed between the rib and the inner wall surface of the water purification tank body.

4. The clean water tank assembly according to claim 3, characterized in that: The water purification tank body is provided with two installation ports, the heat exchange component includes a heat exchange tube, the heat exchange channel is a channel surrounded by the heat exchange tube, the joint is a connecting pipe section arranged at the end of the heat exchange tube, both ends of the heat exchange tube are provided with the connecting pipe section, the two connecting pipe sections are respectively inserted into the two installation ports, each of the connecting pipe sections is covered with the sealing ring, and the sealing ring is pressed between the connecting pipe section and the side wall of the installation port; The limiting portion includes two ribs, one of which surrounds the outer periphery of one of the installation ports along an arc path, and the other rib surrounds the outer periphery of the other installation port along an arc path. The two ribs are connected, and each rib is spaced from the inner wall surface of the clean water tank body to form a limiting gap, and the sealing ring is arranged one-to-one with the limiting gap.

5. The clean water tank assembly according to any one of claims 1 to 3, characterized in that: The heat exchange component comprises a heat exchange tube, the heat exchange channel is a channel surrounded by the heat exchange tube, the joint is a connecting pipe section arranged at the end of the heat exchange tube, the connecting pipe section is inserted into the installation port, the connecting pipe section is covered with the sealing ring, and the sealing ring is pressed between the connecting pipe section and the side wall of the installation port; The inner wall surface of the water purification tank body is provided with a positioning protrusion, the positioning protrusion is provided with a positioning groove, and the heat exchange tube is placed in the positioning groove.

6. The clean water tank assembly according to claim 5, characterized in that: The heat exchange tube includes a bent tube section that is bent back and forth multiple times. The positioning protrusion is a positioning rib. The positioning rib forms a closed circle on the inner wall surface of the water purification tank body. One end surface of the circle surrounded by the positioning rib is connected to the inner wall surface of the water purification tank body. The bent tube section is placed on the other end surface of the circle surrounded by the positioning rib. The positioning groove is provided at the position on the positioning rib that contacts the bent tube section.

7. The clean water tank assembly according to claim 6, characterized in that: A pressure plate is also provided in the water purification tank body. The pressure plate is arranged on the side of the bent pipe section away from the positioning rib. The pressure plate is snap-fitted with the positioning rib, and the bent pipe section is pressed tightly between the positioning rib and the pressure plate.

8. The clean water tank assembly according to claim 7, characterized in that: A notch is provided on the pressing plate at a position opposite to the circle surrounded by the positioning convex ribs; And / or, the plane where the axis of the bent tube segment lies is parallel to the pressing plate.

9. The clean water tank assembly according to claim 7, characterized in that: One of the pressing plate and the clean water tank body is provided with a guide protrusion, and the other is provided with a guide groove, the guide protrusion is inserted into the guide groove, and the guide protrusion is located in the circle surrounded by the positioning rib.

10. A water purifier, characterized in that: A clean water tank assembly comprising any one of claims 1 to 9.

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