End cover of dry-type evaporator, dry-type evaporator and household appliance

Abstract

The utility model discloses an end cover of a dry-type evaporator, the dry-type evaporator and a household appliance. The end cover is provided with a first cavity, a second cavity, a third cavity, a first refrigerant through hole and a second refrigerant through hole, the first cavity, the second cavity and the third cavity are isolated from one another, the first cavity is communicated with the first refrigerant through hole, the second cavity is communicated with the second refrigerant through hole, and the third cavity is communicated with the second refrigerant through hole. The third cavity is used for communicating at least two refrigerant pipes in the multiple refrigerant pipes of the dry-type evaporator so that the at least two refrigerant pipes communicating through the third cavity can be connected in series. According to the end cover of the dry-type evaporator, the dry-type evaporator and the household appliance, the internal space of the end cover is divided into the first cavity, the second cavity and the third cavity through the spacing ribs, the third cavity is used for communicating with at least two refrigerant pipes in the multiple refrigerant pipes of the dry-type evaporator, and the at least two refrigerant pipes communicating through the third cavity are connected in series; the flow quantity is increased, the refrigerant mass flow rate of each refrigerant pipe is increased, and the evaporation heat transfer coefficient is increased.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an end cover of a dry evaporator, a dry evaporator, and a household appliance. Background Art

[0002] A dry evaporator is a heat exchanger in which the refrigerant flows through the tubes in a two-phase gas-liquid state. As the refrigerant evaporates within the tubes, it absorbs a large amount of heat, rapidly lowering the temperature inside the tubes and achieving a cooling effect. Dry evaporators are widely used in refrigeration systems due to their advantages, such as reliable oil return and minimal refrigerant charge. However, when the total number of refrigerant tubes is large, the two-phase refrigerant mass flow rate allocated to each tube is low, resulting in a low tube-side evaporation heat transfer coefficient. Utility Model Content

[0003] In view of the above problems, the present application provides an end cover of a dry evaporator, a dry evaporator and a household appliance.

[0004] The present application provides an end cover of a dry evaporator, wherein the end cover is provided with a first chamber, a second chamber, and a third chamber, a first refrigerant through hole and a second refrigerant through hole, the first chamber, the second chamber and the third chamber are isolated from each other, the first chamber is connected to the first refrigerant through hole, the second chamber is connected to the second refrigerant through hole, and the third chamber is used to connect at least two refrigerant tubes among multiple refrigerant tubes of the dry evaporator, so that the at least two refrigerant tubes connected through the third chamber are connected in series.

[0005] In the end cover of the dry evaporator of the present application, the internal space of the end cover is divided into a first chamber, a second chamber and a third chamber by a spacer rib structure. The third chamber is used to connect at least two refrigerant tubes among the multiple refrigerant tubes of the dry evaporator, so that the at least two refrigerant tubes connected through the third chamber are connected in series to increase the number of flow processes. When the total number of refrigerant tubes is large, the refrigerant mass flow rate allocated to each refrigerant tube is increased, thereby improving the evaporation heat transfer coefficient.

[0006] In some embodiments, the end cover includes a body and a spacer rib, the body includes a first surface and a second surface arranged opposite to each other in the thickness direction, the body is provided with a groove extending from the first surface to the second surface, the spacer rib is arranged in the groove and separates the groove to form the first chamber, the second chamber and the third chamber, and the first refrigerant through hole and the second refrigerant through hole pass through the first body in the thickness direction of the body.

[0007] In some embodiments, the number of the first chamber, the second chamber, and the third chamber are all one, and the third chamber is arranged between the first chamber and the second chamber; or the number of the first chamber, the second chamber, and the third chamber are all one, and the second chamber is arranged between the first chamber and the third chamber; or the number of the first chamber, the second chamber, and the third chamber are all one, and the first chamber, the second chamber, and the third chamber are arranged along the circumference of the end cover.

[0008] In certain embodiments, the volumes of the first chamber and the second chamber are both smaller than the volume of the third chamber.

[0009] In certain embodiments, the number of the third chambers is at least two, and at least two of the third chambers are spaced apart from each other.

[0010] The present application also provides a dry evaporator, which includes the end cover described in any one of the above items and at least one group of refrigerant tubes, each group of refrigerant tubes includes at least two refrigerant tubes, and the at least two refrigerant tubes are connected in series through the third chamber. One end of each group of refrigerant tubes is connected to the first refrigerant through hole, and the other end is connected to the second refrigerant through hole.

[0011] In certain embodiments, in each group of the refrigerant tubes, each of the refrigerant tubes includes a first tube segment, a second tube segment, and a third tube segment that are sequentially connected, and the first tube segment and the third tube segment are arranged in parallel.

[0012] In some embodiments, the dry evaporator includes a shell and an end plate arranged on one side of the shell, the end plate is arranged opposite to the end cover, all of the refrigerant pipes are arranged in the shell, the end plate is provided with a guide hole, and the first chamber, the second chamber and the third chamber are connected to the refrigerant pipe through the guide hole.

[0013] In certain embodiments, the dry evaporator includes a seal disposed between the end cover and the end plate, wherein the seal seals a gap between the end cover and the end plate.

[0014] The present application also provides a household appliance, comprising any one of the dry evaporators described above.

[0015] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0017] Figure 1 This is one of the structural schematic diagrams of the end cap and the refrigerant tube in some embodiments of the present application;

[0018] Figure 2 This is the second structural diagram of the end cover and the refrigerant pipe in some embodiments of the present application;

[0019] Figure 3 This is the third structural diagram of the end cover and the refrigerant pipe in some embodiments of the present application;

[0020] Figure 4 This is a fourth structural diagram of the end cover and the refrigerant pipe in some embodiments of the present application;

[0021] Figure 5 This is the fifth structural diagram of the end cover and the refrigerant pipe in some embodiments of the present application;

[0022] Figure 6 This is a schematic structural diagram of the end caps of some embodiments of the present application;

[0023] Figure 7 This is an exploded schematic diagram of a dry evaporator according to some embodiments of the present application;

[0024] Figure 8 This is a schematic structural diagram of the refrigerant pipe in some embodiments of the present application.

[0025] Figure Number:

[0026] Dry evaporator 100, end cover 10, first chamber 11, second chamber 12, third chamber 13, first refrigerant through hole 14, second refrigerant through hole 15, spacer rib 16, body 17, first surface 171, second surface 172, groove 173, refrigerant tube 20, first refrigerant tube 21, second refrigerant tube 22, third refrigerant tube 23, fourth refrigerant tube 24, first pipe section 201, second pipe section 202, third pipe section 203, shell 30, end plate 40, guide hole 41, seal 50. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0029] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent the following three situations: X exists alone, X and Y exist simultaneously, and Y exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0032] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0033] See also Figure 1 The present application provides an end cover 10 of a dry evaporator 100, wherein the end cover 10 is provided with a first chamber 11, a second chamber 12, a third chamber 13, a first refrigerant through hole 14, and a second refrigerant through hole 15. The first chamber 11, the second chamber 12, and the third chamber 13 are isolated from each other, the first chamber 11 is connected to the first refrigerant through hole 14, the second chamber 12 is connected to the second refrigerant through hole 15, and the third chamber 13 is used to connect at least two refrigerant tubes 20 of a plurality of refrigerant tubes 20 of the dry evaporator 100, so that the at least two refrigerant tubes 20 connected through the third chamber 13 are connected in series.

[0034] Specifically, the dry evaporator 100 is a heat exchanger widely used in refrigeration systems. Its operating principle is that when the refrigerant in the dry evaporator 100 evaporates within the refrigerant pipe 20, it absorbs a large amount of heat, rapidly lowering the temperature within the refrigerant pipe 20 and achieving a cooling effect. Refrigerant, also known as refrigerant, is a working fluid used in refrigeration and air conditioning systems to transfer heat energy and produce a cooling effect. The refrigerant achieves heat transfer through evaporation and condensation. Examples of refrigerants include Freon, water, or carbon dioxide.

[0035] End caps 10 are located at the ends of the dry evaporator 100, providing both sealing and connection. The refrigerant tube 20 can be a U-shaped tube or a straight tube. When the refrigerant tube 20 is a straight tube, end caps 10 are installed at both ends of the dry evaporator 100. When the refrigerant tube 20 is a U-shaped tube, end caps 10 are installed only at one end of the dry evaporator 100, leaving the other end completely sealed.

[0036] The embodiment of the present application also has a special design for the end cover 10, and is provided with a spacer rib 16. The spacer rib 16 divides the internal space of the end cover 10 into a first chamber 11, a second chamber 12 and a third chamber 13. The first chamber 11, the second chamber 12 and the third chamber 13 are isolated from each other, and the heat exchange occurring in each chamber does not interfere with each other. The first chamber 11 is connected to the first refrigerant through hole 14, and is used to receive the refrigerant flowing in from the first refrigerant through hole 14. At the same time, the refrigerant will also undergo a certain amount of heat exchange in the refrigerant pipe 20 of the first chamber 11. The second chamber 12 is connected to the second refrigerant through hole 15, and the refrigerant flowing into the second chamber 12 flows out from the second refrigerant through hole 15. At the same time, the refrigerant will also undergo a certain amount of heat exchange in the refrigerant pipe 20 of the second chamber 12.

[0037] The third chamber 13 is used to connect at least two of the multiple refrigerant tubes 20 in the dry evaporator 100, so that the at least two refrigerant tubes 20 connected by the third chamber 13 are connected in series. Specifically, the number of third chambers 13 can be one or more. The purpose of having multiple chambers is to create more heat exchange processes, increase the mass flow rate of the refrigerant, and thus improve the evaporation heat transfer coefficient. The mass flow rate of a refrigerant refers to the mass of refrigerant passing through a unit area per unit time. The evaporation heat transfer coefficient of an evaporator refers to the amount of heat transferred per unit area per unit time in the evaporator when the temperature difference between the refrigerant and the cooled object is 1 degree. When the total number of refrigerant tubes 20 is large, using a single-pass or two-pass dry evaporator 100 will result in a relatively small refrigerant mass flow rate allocated to each refrigerant tube 20. A multi-pass dry evaporator 100, by dividing the refrigerant into multiple passes for evaporation, can increase the mass flow rate of the refrigerant allocated to each refrigerant tube 20, thereby improving the evaporation heat transfer coefficient.

[0038] See also Figure 1-Figure 3Specifically, when there is only one third chamber 13, the third chamber 13 is used to connect the first refrigerant tube 21 of the first chamber 11 with the second refrigerant tube 22 of the second chamber 12, connecting the refrigerant tubes 20 of the first chamber 11 and the second chamber 12 in series. The total number of refrigerant tubes 20 of the first chamber 11 and the second chamber 12 is at least two, for example, two, four, six, or more. The refrigerant tube 20 is a U-shaped tube. As the refrigerant flows from one end of the U-shaped tube to the other, a certain amount of the refrigerant evaporates, absorbing some heat. This process is called a heat exchange process, and each U-shaped tube corresponds to two heat exchange processes.

[0039] The flow process of the refrigerant in the refrigerant tube 20 is as follows: it flows from the first refrigerant through-hole 14 into one end of the first refrigerant tube 21, and flows to the other end of the first refrigerant tube 21, where no end cover 10 is provided. A certain amount of heat exchange will occur during the above flow process, which is the first heat exchange process; the refrigerant completes the turn at the bend of the first refrigerant tube 21, flows into the third chamber 13, and flows to the end with the end cover 10, which is the second heat exchange process; in the third chamber 13, the refrigerant completes the turn at the series connection part of the first refrigerant tube 21 and the second refrigerant tube 22, flows into one end of the second refrigerant tube 22, and flows to the other end of the second refrigerant tube 22 where no end cover 10 is provided, which is the third heat exchange process; the refrigerant completes the turn at the bend of the second refrigerant tube 22, flows into the second chamber 12, and flows to the end with the end cover 10, and finally flows out from the second refrigerant through-hole 15, which is the fourth heat exchange process.

[0040] See also Figure 4-Figure 5 If there are multiple third chambers 13, for example, two, one third chamber 13 is used to connect the first refrigerant pipe 21 of the first chamber 11, and the other third chamber 13 is used to connect the second refrigerant pipe 22 of the second chamber 12. In addition, there will be a third refrigerant pipe 23 to connect the two third chambers 13, forming two more heat exchange processes, and the total number of heat exchange processes reaches six. If there are three third chambers 13, for example, two of the third chambers 13 are not connected, but are connected to the third third chamber 13 through the third refrigerant pipe 23 and the fourth refrigerant pipe 24 respectively. The third third chamber 13 is used to connect the third refrigerant pipe 23 and the fourth refrigerant pipe 24 in series, and the total number of heat exchange processes reaches eight.

[0041] In the end cover 10 of the dry evaporator 100 of the present application, the internal space of the end cover 10 is divided into a first chamber 11, a second chamber 12 and a third chamber 13 by a spacer rib 16 structure. The third chamber 13 is used to connect at least two refrigerant tubes 20 among the multiple refrigerant tubes 20 of the dry evaporator 100, so that the at least two refrigerant tubes 20 connected through the third chamber 13 are connected in series to increase the number of flow paths. When the total number of refrigerant tubes 20 is large, the refrigerant mass flow rate allocated to each refrigerant tube 20 is increased, thereby improving the evaporation heat transfer coefficient.

[0042] See also Figure 6 In some embodiments, the end cover 10 includes a body 17 and a spacing rib 16. The body 17 includes a first surface 171 and a second surface 172 arranged opposite to each other in the thickness direction. The body 17 has a groove 173 recessed from the first surface 171 to the second surface 172. The spacing rib 16 is arranged in the groove 173 and separates the groove 173 into a first chamber 11, a second chamber 12 and a third chamber 13. The first refrigerant through hole 14 and the second refrigerant through hole 15 penetrate the body 17 along the thickness direction of the body 17.

[0043] The body 17 of the end cap 10 is cylindrical in shape with a groove 173 on its circular surface. It has a first surface 171 and a second surface 172, disposed opposite each other along the thickness direction. The groove 173 is recessed from the first surface 171 to the second surface 172. The groove 173 is designed to accommodate and secure the spacer ribs 16. The spacer ribs 16 are disposed within the groove 173, providing separation and support. The spacer ribs 16 separate the grooves 173 into a first chamber 11, a second chamber 12, and a third chamber 13. A first refrigerant passage 14 and a second refrigerant passage 15 extend through the body 17 along its thickness. The first refrigerant passage 14 is located in the first chamber 11, and the second refrigerant passage 15 is located in the second chamber 12. These first and second refrigerant passages 14, 15 control the flow of refrigerant into and out of the dry evaporator 100, ensuring that the refrigerant circulates throughout the dry evaporator 100. In addition, the design of the end cover 10 needs to ensure good sealing performance to prevent refrigerant leakage. The material for manufacturing the end cover 10 can be a metal material, such as copper or stainless steel. The metal material has good strength, corrosion resistance and thermal conductivity, and is also easy to process and install, which can meet the needs of the end cover 10 in various application scenarios.

[0044] See also Figure 1-Figure 3 In some embodiments, the number of the first chamber 11, the second chamber 12 and the third chamber 13 are all one, and the third chamber 13 is arranged between the first chamber 11 and the second chamber 12; or the number of the first chamber 11, the second chamber 12 and the third chamber 13 are all one, and the second chamber 12 is arranged between the first chamber 11 and the third chamber 13; or the number of the first chamber 11, the second chamber 12 and the third chamber 13 are all one, and the first chamber 11, the second chamber 12 and the third chamber 13 are arranged along the circumference of the end cover 10.

[0045] The number of the first chamber 11, the second chamber 12 and the third chamber 13 is one, and the end cover 10 structure with four processes is adopted in this embodiment. Figure 1The third chamber 13 is disposed between the first chamber 11 and the second chamber 12. The first refrigerant pipe 21 and the second refrigerant pipe 22 are arranged in a vertical direction. Gravity facilitates the refrigerant's diversion in the refrigerant pipe 20. The first refrigerant through hole 14 and the second refrigerant through hole 15 have a clear vertical relationship and are not easily confused. However, this will occupy a large space in the vertical direction, requiring the dry evaporator 100 to be sufficiently large or the refrigerant pipe 20 to be relatively small. Figure 2 The second chamber 12 is arranged between the first chamber 11 and the third chamber 13. This arrangement is suitable for the case where the first refrigerant pipe 21 and the second refrigerant pipe 22 are of different sizes, one large and one small. Figure 3 The first, second, and third chambers 11, 12, and 13 are arranged circumferentially around the end cap 10, while the first and second refrigerant tubes 21, 22 are arranged horizontally. This arrangement is suitable for applications where the first and second refrigerant tubes 21, 22 are of equal or similar size, and it also minimizes vertical space usage. These various configurations offer different options for installing and placing the refrigerant tubes 20, allowing for comprehensive consideration of the layout of the first, second, and third chambers 11, 12, 13 based on practical needs.

[0046] In some embodiments, the volumes of the first chamber 11 and the second chamber 12 are both smaller than the volume of the third chamber 13 .

[0047] The number of heat exchange processes performed in the first chamber 11 and the second chamber 12 is less than that in the third chamber 13, and the actual space required to accommodate the refrigerant pipe 20 is also smaller. Therefore, the volumes of the first chamber 11 and the second chamber 12 are both smaller than the volume of the third chamber 13. In some embodiments, in the end cover 10 structure of a four-pass dry evaporator 100, the volume ratio of the first chamber 11, the second chamber 12, and the third chamber 13 can be, for example, 1:1:2 or 1:1:3; in the end cover 10 structure of a six-pass dry evaporator 100, the volume ratio of the first chamber 11, the second chamber 12, and the third chamber 13 can be, for example, 1:1:4 or 1:1:5; and in the end cover 10 structure of an eight-pass dry evaporator 100, the volume ratio of the first chamber 11, the second chamber 12, and the third chamber 13 can be, for example, 1:1:6 or 1:1:7.

[0048] In some embodiments, the number of the third chambers 13 is at least two, and the at least two third chambers 13 are spaced apart from each other.

[0049] The number of third chambers 13 is at least two, which can further increase the refrigerant mass flow rate distributed to the refrigerant pipe 20 compared to a single third chamber 13. For example, when there are two third chambers 13, the two third chambers 13 are spaced apart by a spacing rib 16 so that the heat exchange occurring therein does not interfere with each other. One third chamber 13 is used to connect to the first refrigerant pipe 21 of the first chamber 11, and the other third chamber 13 is used to connect to the second refrigerant pipe 22 of the second chamber 12. The third refrigerant pipe 23 connects the two third chambers 13. Each refrigerant pipe 20 corresponds to two heat exchange processes, for a total of six heat exchange processes, which is two more processes than a single third chamber 13. For example, when there are three third chambers 13, two of the third chambers 13 are not connected, but are connected to the third third chamber 13 via the third refrigerant pipe 23 and the fourth refrigerant pipe 24, respectively. The third third chamber 13 is used to connect the third refrigerant pipe 23 and the fourth refrigerant pipe 24 in series, resulting in a total of eight heat exchange processes, which is four more than a single third chamber 13. Furthermore, while increasing the number of processes can improve the refrigerant mass flow rate, a greater number of processes also means a more complex refrigerant flow path, which increases the manufacturing cost of the dry evaporator 100. Furthermore, if leakage or the like occurs at a connection of a refrigerant pipe 20, the overly complex dry evaporator 100 refrigeration system will make repair or replacement more difficult. Therefore, the number of third chambers 13 to be provided needs to be comprehensively considered.

[0050] See also Figure 1 and Figure 7 The present application also provides a dry evaporator 100, which includes the end cover 10 of any of the above items and at least one group of refrigerant tubes 20, each group of refrigerant tubes 20 includes at least two refrigerant tubes 20, and at least two refrigerant tubes 20 are connected in series through the third chamber 13, and one end of each group of refrigerant tubes 20 is connected to the first refrigerant through hole 14, and the other end is connected to the second refrigerant through hole 15.

[0051] The dry evaporator 100 adopts the aforementioned end cap 10 design, comprising a body 17, spacer ribs 16, and a plurality of chambers formed by separation. The end cap 10 is provided with a first refrigerant through hole 14 and a second refrigerant through hole 15 for the entry and exit of the refrigerant. At least one group of refrigerant pipes 20 is provided, and the number of groups of refrigerant pipes 20 can be, for example, 1, 2, 3, 5, 10, or 20. Each group of refrigerant pipes 20 includes at least two refrigerant pipes 20. The number of refrigerant pipes 20 in each group is related to the number of heat exchange processes. For example, if the number of heat exchange processes is 8, the number of refrigerant pipes 20 in each group is 4; if the number of heat exchange processes is 6, the number of refrigerant pipes 20 in each group is 3; and if the number of heat exchange processes is 4, the number of refrigerant pipes 20 in each group is 2. At least two refrigerant tubes 20 are connected in series through the third chamber 13 , and one end of each group of refrigerant tubes 20 is connected to the first refrigerant through hole 14 , and the other end is connected to the second refrigerant through hole 15 , thereby forming a complete refrigerant flow path.

[0052] See also Figure 8 In some embodiments, in each group of refrigerant tubes 20, each refrigerant tube 20 includes a first tube segment 201, a second tube segment 202, and a third tube segment 203 connected in sequence, and the first tube segment 201 and the third tube segment 203 are arranged in parallel.

[0053] The refrigerant tube 20 can be a U-shaped tube, and the first tube segment 201 is the starting part of the U-shaped tube. The first tube segment 201 can be connected to the third chamber 13 or other refrigerant tubes 20 to guide the refrigerant into the U-shaped tube. The second tube segment 202 is the curved part of the U-shaped tube. The second tube segment 202 connects the first tube segment 201 and the third tube segment 203 and forms an upward or downward arc-shaped pipe to facilitate the refrigerant to turn. The third tube segment 203 is the ending part of the U-shaped tube. The third tube segment 203 is arranged parallel to the first tube segment 201 and can be connected to the third chamber 13 or other refrigerant tubes 20 to guide the refrigerant out of the U-shaped tube. The first tube segment 201 and the third tube segment 203 are parallel and can form a parallel refrigerant flow path together, which helps to ensure the uniform distribution of the refrigerant in the refrigerant tube 20 and reduce the pressure loss of the refrigerant during the flow process.

[0054] See also Figure 1 and Figure 7 In some embodiments, the dry evaporator 100 includes a shell 30 and an end plate 40 arranged on one side of the shell 30. The end plate 40 is arranged opposite to the end cover 10. All refrigerant pipes 20 are arranged in the shell 30. The end plate 40 is provided with a guide hole 41. The first chamber 11, the second chamber 12 and the third chamber 13 are connected to the refrigerant pipe 20 through the guide hole 41.

[0055] The shell 30 is the main body of the dry evaporator 100 and is a closed space that can be made of stainless steel. The end plate 40 and the end cover 10 are arranged on the same side of the shell 30. The end plate 40 is arranged between the end cover 10 and the shell 30. On the one hand, the end plate 40 is connected to the shell 30 to ensure the sealing and structural stability of the evaporator shell 30. On the other hand, the end plate 40 can fix the refrigerant pipe 20 to ensure the correct position of the refrigerant pipe 20 in the shell 30. The end plate 40 is also provided with a guide hole 41, which is used to connect the first chamber 11, the second chamber 12 and the third chamber 13 with the refrigerant pipe 20. The end plate 40 and the end cover 10 are arranged opposite to each other so that the end cover 10 can cover the guide hole 41 on the surface of the end plate 40.

[0056] See also Figure 7 In some embodiments, the dry evaporator 100 includes a seal 50 disposed between the end cover 10 and the end plate 40 , and the seal 50 seals a gap between the end cover 10 and the end plate 40 .

[0057] The main function of the seal 50 is to prevent refrigerant from leaking from the gap between the end cover 10 and the end plate 40, ensuring the normal operation and performance of the evaporator. The seal 50 can be a gasket made of an elastic material such as rubber, plastic, or metal, which is used to fill the gap between the end cover 10 and the end plate 40 to provide an effective seal.

[0058] The present application also provides a household appliance, which includes any of the above-mentioned dry evaporators 100 .

[0059] The dry evaporator 100 has excellent heat exchange performance. Household appliances using the dry evaporator 100 can achieve an ideal cooling effect in a short period of time, meeting the user's precise temperature control needs. For example, the household appliance can be an air conditioner. Applying the dry evaporator 100 to a household air conditioner can significantly improve cooling efficiency, reduce energy consumption, and provide a more comfortable user experience. For example, the household appliance can also be a refrigerator or freezer. Using the dry evaporator 100 in a refrigerator or freezer can help maintain the freshness and taste of food and beverages while reducing energy consumption and noise. For example, the household appliance can also be a dehumidifier. By utilizing the efficient heat exchange performance of the dry evaporator 100, the dehumidifier can more effectively remove moisture from the air, providing a drier and more comfortable living environment.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An end cover of a dry evaporator, characterized in that: The end cover is provided with a first chamber, a second chamber and a third chamber, a first refrigerant through hole and a second refrigerant through hole. The first chamber, the second chamber and the third chamber are isolated from each other. The first chamber is connected to the first refrigerant through hole, and the second chamber is connected to the second refrigerant through hole. The third chamber is used to connect at least two refrigerant tubes of the multiple refrigerant tubes of the dry evaporator, so that the at least two refrigerant tubes connected through the third chamber are connected in series.

2. The end cover of the dry evaporator according to claim 1, characterized in that: The end cover includes a body and a spacing rib, the body includes a first surface and a second surface arranged opposite to each other in the thickness direction, the body is provided with a groove from the first surface to the second surface, the spacing rib is arranged in the groove and separates the groove to form the first chamber, the second chamber and the third chamber, the first refrigerant through hole and the second refrigerant through hole pass through the body along the thickness direction of the body.

3. The end cover of the dry evaporator according to claim 1, characterized in that: The number of the first chamber, the second chamber, and the third chamber are all one, and the third chamber is arranged between the first chamber and the second chamber; or, The number of the first chamber, the second chamber, and the third chamber are all one, and the second chamber is arranged between the first chamber and the third chamber; or, The number of the first chamber, the second chamber, and the third chamber are all one, and the first chamber, the second chamber, and the third chamber are arranged along the circumference of the end cover.

4. The end cover of the dry evaporator according to claim 3, characterized in that: The volumes of the first chamber and the second chamber are both smaller than the volume of the third chamber.

5. The end cover of the dry evaporator according to claim 1, characterized in that: The number of the third chambers is at least two, and at least two of the third chambers are spaced apart from each other.

6. A dry evaporator, characterized in that: include: The end cover of the dry evaporator according to any one of claims 1 to 5; and At least one group of refrigerant tubes, each group of refrigerant tubes includes at least two refrigerant tubes, the at least two refrigerant tubes are connected in series through the third chamber, one end of each group of refrigerant tubes is connected to the first refrigerant through hole, and the other end is connected to the second refrigerant through hole.

7. The dry evaporator according to claim 6, characterized in that In each group of the refrigerant tubes, each of the refrigerant tubes includes a first tube segment, a second tube segment, and a third tube segment that are connected in sequence, and the first tube segment and the third tube segment are arranged in parallel.

8. The dry evaporator according to claim 6, characterized in that The dry evaporator includes a shell and an end plate arranged on one side of the shell, the end plate is arranged opposite to the end cover, all the refrigerant pipes are arranged in the shell, the end plate is provided with a guide hole, and the first chamber, the second chamber and the third chamber are connected to the refrigerant pipe through the guide hole.

9. The dry evaporator according to claim 8, characterized in that The dry evaporator includes a sealing member disposed between the end cover and the end plate, and the sealing member seals a gap between the end cover and the end plate.

10. A household appliance, characterized in that: The dry evaporator comprises the dry evaporator according to any one of claims 6 to 9.

Images