Phase change energy storage device and heating and ventilation system

Abstract

The utility model discloses a phase change energy storage device and a heating and ventilation system.The phase change energy storage device comprises a machine body and a temperature sensing assembly, the machine body comprises a shell and a heat exchange assembly arranged in a containing space formed by the shell, a lead-out hole is formed in the shell, and the temperature sensing assembly comprises a maintaining part, a temperature sensing part and a sealing structure; the holding piece is arranged at the position where the lead-out hole is located and connected with the shell, at least part of the holding piece is arranged in the shell, the sealing structure is arranged at the combination position of the holding piece and the shell and arranged in the circumferential direction of the lead-out hole, and the temperature sensing piece comprises a temperature sensing part and a wire body which are electrically connected; the temperature sensing part is arranged in the maintaining piece and obtains the temperature of the heat exchange assembly through the maintaining piece, and the wire body is led out of the shell at the position of the lead-out hole. According to the phase change energy storage device, the sealing structure seals the combination position of the maintaining piece and the shell in the circumferential direction of the lead-out hole, the sealing performance of the lead-out hole position is improved, the temperature of water leakage at the lead-out position of the wire body is reduced, and the fault rate of the phase change energy storage device is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating and ventilation systems, and particularly relates to a phase change energy storage device and a heating and ventilation system. BACKGROUND

[0002] The part provided in this section is merely background information related to the present disclosure, and it does not necessarily have to be prior art.

[0003] Phase change energy storage technology is an energy storage and utilization technology, which is based on the phase change characteristics of phase change materials, that is, the phase change materials can absorb or release a large amount of heat when they are converted between different states (such as solid, liquid, and gas), thereby realizing the storage and release of energy. Therefore, the phase change energy storage technology is introduced into the heating and ventilation system, so as to store and utilize the heat generated by the heat pump in the heating and ventilation system.

[0004] In the related art, the heating and ventilation system includes a phase change energy storage device, the phase change energy storage device is provided with a temperature sensing element to realize monitoring of the internal temperature of the phase change energy storage device, and a wire body of the temperature sensing element is led out through a shell of the phase change energy storage device. However, water leakage is prone to occur at the leading-out position of the wire body, thereby increasing the failure rate of the phase change energy storage device. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to at least solve the problem of reducing water leakage at the leading-out position of the wire body of the temperature sensing element. The purpose is achieved by the following technical solution:

[0006] The first aspect of the present application provides a phase change energy storage device, which comprises:

[0007] A machine body, the machine body comprises a shell and a heat exchange assembly arranged in an accommodation space formed by the shell, and the shell is provided with a leading-out hole;

[0008] A temperature sensing assembly, the temperature sensing assembly comprises a retaining element, a temperature sensing element, and a sealing structure, the retaining element is arranged at a position of the leading-out hole and connected with the shell, at least part of the retaining element is arranged in the accommodation space formed by the shell, the sealing structure is arranged at a combined position of the retaining element and the shell and is arranged around the circumference of the leading-out hole, the temperature sensing element comprises a temperature sensing part and a wire body which are electrically connected, the temperature sensing part is arranged inside the retaining element and obtains the temperature of the heat exchange assembly through the retaining element, and the wire body is led out to the outside of the shell at the position of the leading-out hole.

[0009] In the application, the wire body of the temperature sensing element is drawn out at the position of the drawing hole, and the sealing structure is arranged between the retaining element and the shell, and the sealing structure seals the combined position of the retaining element and the shell along the circumferential direction of the drawing hole, thereby improving the sealing performance at the position of the drawing hole, reducing the temperature at which the drawing position of the wire body leaks, and thereby reducing the failure rate of the phase change energy storage device.

[0010] In addition, the heating and ventilation system according to the application can also have the following additional technical features:

[0011] In some embodiments of the application, the retaining element is provided with a through channel, the through channel includes oppositely arranged first and second ends, the first end is arranged towards the inside of the shell and is a closed structure, the second end is arranged towards the outside of the shell and is an open structure, the temperature sensing part is arranged in the through channel, one end of the wire body is arranged in the through channel and connected with the temperature sensing part, and the other end of the wire body extends outside the shell through the second end.

[0012] In some embodiments of the application, the retaining element includes:

[0013] The pipe body, the inside of the pipe body constitutes the through channel, at least part of the pipe body is arranged in the shell and is coaxially arranged with the drawing hole;

[0014] The first connecting seat is arranged on the pipe body and connected with the shell, and the sealing structure is arranged at the combined position of the first connecting seat and the shell.

[0015] In some embodiments of the application, one end of the pipe body is arranged in the shell, and the other end of the pipe body abuts against the inner wall of the shell or penetrates out through the drawing hole.

[0016] In some embodiments of the application, the first connecting seat includes a first end face, the first end face abuts against the inner wall of the shell, the sealing structure is arranged between the first end face and the inner wall of the shell, and the sealing structure is arranged around the circumference of the drawing hole.

[0017] In some embodiments of the application, the sealing structure is a flexible sealing ring, and the flexible sealing ring is clamped between the first end face and the inner wall of the shell.

[0018] In some embodiments of the application, at least one of the first end face and the inner wall of the shell is provided with a receiving groove, and part of the flexible sealing ring is embedded in the receiving groove along the axial direction of the pipe body.

[0019] In some embodiments of this application, the first end face is provided with at least one connecting portion. Along the radial direction of the tube body, the at least one connecting portion is disposed between the tube body and the sealing structure. The housing is provided with connecting holes of the same number as the connecting portions. The connecting holes are arranged one-to-one with the connecting portions. The temperature sensing component also includes a fastener. The fastener passes through the connecting hole and connects to the connecting portion to fix the first connecting seat to the housing.

[0020] In some embodiments of this application, a first limiting structure is provided on the first end face, and the first limiting structure is located between the tube body and the sealing structure along the radial direction of the tube body. A second limiting structure is provided on the shell, and the first limiting structure and the second limiting structure are in concave-convex fit.

[0021] And / or, the body further includes a limiting member disposed within the body, the limiting member having a through hole, and the retaining member further includes a second connecting seat disposed on the tube body along the axial direction of the tube body, the second connecting seat being spaced apart from the first connecting seat, the tube body passing through the through hole, and the second connecting seat abutting against the side of the limiting member facing the first connecting seat.

[0022] A second aspect of this application provides a heating, ventilation, and air conditioning (HVAC) system comprising a phase change energy storage device as described above.

[0023] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0025] Figure 1 A schematic diagram of the structure of a phase change energy storage device according to an embodiment of this application is shown.

[0026] Figure 2 for Figure 1 The exploded structure diagram of the phase change energy storage device shown in the figure;

[0027] Figure 3 for Figure 2 A magnified schematic diagram of part A in the phase change energy storage device shown in the figure;

[0028] Figure 4 Fig. 1 is a schematic view of a temperature sensing assembly according to an embodiment of the present application; Figure 2 Fig. 2 is a schematic view of the temperature sensing assembly shown in Fig. 1 ;

[0029] Figure 5 Fig. 3 is an exploded schematic view of the temperature sensing assembly shown in Fig. 1 ; Figure 4 Fig. 4 is a schematic view of a holder of the temperature sensing assembly shown in Fig. 1 ;

[0030] Figure 6 Fig. 5 is a schematic view of the holder shown in Fig. 4 from another perspective; Figure 5 Fig. 6 is a sectional view of the holder shown in Fig. 4 at B-B;

[0031] Figure 7 Fig. 7 is a schematic view of the temperature sensing assembly shown in Fig. 1 from another perspective; Figure 6 Fig. 8 is a sectional view of the temperature sensing assembly shown in Fig. 1 at C-C;

[0032] Figure 8 Fig. 9 is an enlarged schematic view of portion E of the temperature sensing assembly shown in Fig. 1 ; Figure 7 Fig. 10 is a sectional view of the temperature sensing assembly shown in Fig. 1 at D-D;

[0033] Figure 9 Fig. 11 is a schematic view of the temperature sensing assembly shown in Fig. 1 from another perspective; Figure 1 Fig. 12 is an enlarged schematic view of portion F of the temperature sensing assembly shown in Fig. 1 ;

[0034] Figure 10 Fig. 13 is a sectional view of the temperature sensing assembly shown in Fig. 1 at E-E; Figure 9 Fig. 14 is a schematic view of a sealing member of the temperature sensing assembly shown in Fig. 1 ;

[0035] Figure 11 Fig. 15 is a schematic view of the sealing member shown in Fig. 14 from another perspective; Figure 10 Fig. 16 is a sectional view of the sealing member shown in Fig. 14 at G-G.

[0036] Figure 12 Fig. 17 is a schematic view of a phase change energy storage device according to an embodiment of the present application; Figure 9 Fig. 18 is a sectional view of the phase change energy storage device shown in Fig. 17 at D-D;

[0037] Figure 13 Fig. 19 is an enlarged schematic view of portion F of the phase change energy storage device shown in Fig. 17; Figure 12 Fig. 20 is a schematic view of the phase change energy storage device shown in Fig. 17 from another perspective;

[0038] Figure 14 Fig. 21 is a schematic view of a sealing member of the phase change energy storage device shown in Fig. 17; Figure 2 Fig. 22 is a schematic view of the sealing member shown in Fig. 21 from another perspective;

[0039] Figure 15 Fig. 23 is a sectional view of the sealing member shown in Fig. 21 at G-G. Figure 14 Fig. 24 is a schematic view of a temperature sensing assembly according to another embodiment of the present application;

[0040] Figure 16 Fig. 25 is a schematic view of a holder of the temperature sensing assembly shown in Fig. 24; Figure 15 Fig. 26 is a sectional view of the holder shown in Fig. 25 at G-G.

[0041] The reference signs are as follows:

[0042] 100. A phase change energy storage device;

[0043] 10. A body;

[0044] 11. A housing; 111, a through hole; 112, a lead hole; 113, a connecting hole; 114, a second limiting structure; 12, a pipeline; 13, a heat exchange assembly; 14, a limiting piece; 141, a through hole; 142, a limiting hole;

[0045] 20. A sealing piece;

[0046] 21. A sealing seat; 211, an annular groove; 212, a protrusion; 22, a sealing body; 23, a cavity;

[0047] 30. A temperature sensing assembly;

[0048] 31. A retaining piece; 311, a tube body; 312, a first connecting seat; 3121, a first end face; 3122, a receiving groove; 3123, a connecting part; 3124, a first limiting structure; 313, a second connecting seat; 3131, a limiting protrusion; 314, a through channel; 32, a temperature sensing piece; 321, a wire body; 322, a temperature sensing part; 33, a sealing structure;

[0049] X, an axial direction; Y, a radial direction. DETAILED DESCRIPTION

[0050] Example embodiments of the present disclosure will be described herein below with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0051] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0052] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0053] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0054] like Figures 1 to 16 As shown, according to an embodiment of this application, a phase change energy storage device 100 is proposed, which includes a body 10 and a sealing element 20. The body 10 includes a heat exchange assembly 13, a shell 11, and multiple pipes 12. Each pipe 12 is connected to the heat exchange assembly 13, and the heat exchange assembly 13 forms multiple medium flow channels through the multiple pipes 12. Each medium flow channel can form a complete cycle for the flow of heat exchange medium. No two medium flow channels can be connected, but heat exchange can occur directly or indirectly.

[0055] Multiple through holes 111 are provided on the housing 11, the number of through holes 111 is consistent with the number of pipes 12. One end of each pipe 12 is connected to the heat exchange component 13, and the other end passes through a through hole 111 on the housing 11 and extends to the outside of the housing 11 so that the other end of the pipe 12 can be connected to other components of the HVAC equipment.

[0056] The pipe 12 is led out through the through hole 111, and the position of the through hole 111 is the leading-out position of the pipe 12. There is a gap between the through hole 111 and the outer peripheral wall of the pipe 12. In order to reduce the possibility of water leakage at the leading-out position of the pipe 12, a sealing member 20 is arranged between the through hole 111 and the outer peripheral wall of the pipe 12 to seal the leading-out position of the pipe 12.

[0057] In the sealing member 20, a plurality of sealing bodies 22 are arranged in sequence along the axial direction X of the pipe 12 (i.e., the axial direction of the through hole 111). The sealing bodies 22 arranged in sequence in two adjacent layers are arranged such that at least part of the sealing body 22 facing the housing 11 is shielded by the sealing body 22 facing away from the housing 11. The at least two sealing bodies 22 seal the leading-out position of the pipe 12 (the space between the pipe 12 and the through hole 111).

[0058] It should be understood that the sealing body 22 arranged in sequence in two adjacent layers is arranged such that at least part of the sealing body 22 facing the housing 11 is shielded by the sealing body 22 facing away from the housing 11, which means that the projection of the sealing body 22 facing away from the housing 11 on the sealing body 22 facing the housing 11 is located within the range of the sealing body 22 facing the housing 11 or is arranged flush with the edge of the sealing body 22 facing the housing 11.

[0059] In addition, in the present application, the number of sealing bodies 22 is at least two, which can be two, three, four, five, six, seven, eight, nine, ten, etc.

[0060] In addition, the at least two sealing bodies 22 sealing the leading-out position of the pipe 12 (the space between the pipe 12 and the through hole 111) means that the sealing bodies 22 sealing the leading-out position of the pipe 12 can be two, three, four, five, etc., and each sealing body 22 can independently seal the leading-out position of the pipe 12.

[0061] Taking the two sealing bodies 22 arranged in sequence as an example, the at least part of the sealing body 22 facing the housing 11 is shielded by the sealing body 22 facing away from the housing 11 along the axial direction X of the pipe 12, so that the two sealing bodies 22 arranged in sequence form a double-layer sealing structure 33. The sealing body 22 facing the housing 11 is the inner layer structure, and the sealing body 22 facing away from the housing 11 is the outer layer structure. When the outer layer structure is scratched, the inner layer structure can maintain the sealing effect.

[0062] In the present application, the seal 20 is arranged between the through hole of the shell 11 and the pipeline 12, and the multiple layers of the seal body 22 in the seal 20 are arranged along the axial direction X of the pipeline 12. In the two layers of the seal body 22 arranged adjacently, at least part of the body of the seal body 22 facing the shell 11 is covered by the seal body 22 facing away from the shell 11. The space between the pipeline 12 and the through hole 111 is sealed by the at least two layers of the seal body 22, so as to realize the multi-layer sealing. When one seal body 22 is scratched, the other seal body 22 can maintain good sealing, thereby reducing the problem of sealing failure at the position where the pipeline 12 penetrates.

[0063] It should be noted that in the present application, the phase change energy storage device 100 is a technical device that utilizes the characteristics of phase change materials (PCMs) to absorb or release a large amount of heat during the phase change process to store and release energy. The phase change material can change from one physical state to another state (such as solid to liquid, or liquid to solid) within a certain temperature range, and absorb or release a large amount of latent heat during the process, thereby achieving energy storage and supply. For example, the phase change energy storage device 100 can utilize the characteristics of the phase change material to heat tap water to provide people with comfortable hot water for daily life, etc.

[0064] The phase change energy storage device 100 is applied to a heating and ventilation system, wherein the heating and ventilation system comprises a heat pump outdoor unit and the phase change energy storage device 100. The phase change energy storage device 100 comprises a charging inlet and a charging outlet. The charging inlet is connected to a heat source outlet of the heat pump outdoor unit, and the charging outlet is connected to a heat source inlet of the heat pump outdoor unit. The heat pump outdoor unit and the phase change energy storage device 100 form a charging flow path through the heat source outlet, the charging inlet, the charging outlet and the heat source inlet, respectively. One or more charging flow paths can be arranged in the phase change energy storage device 100. In some embodiments, the phase change energy storage device 100 further comprises a discharging outlet and a discharging inlet. A flow path between the discharging outlet and the discharging inlet forms a discharging flow path. One or more discharging flow paths can be arranged in the phase change energy storage device 100. The heat pump outdoor unit can communicate with the charging flow path through the charging inlet and the charging outlet. The heat fluid in the heat pump outdoor unit can flow into the charging flow path. The charging flow path can transfer heat to the phase change material in the phase change energy storage device 100. The cold water can flow into the discharging flow path through the discharging inlet and absorb the heat of the phase change material. After the cold water is heated into hot water, the hot water can flow out through the discharging outlet for use by a user.

[0065] In some embodiments of the present application, as Figures 12 to 16As shown, the sealing member 20 comprises a sealing seat 21 and a plurality of sealing bodies 22, the plurality of sealing bodies 22 are arranged on the sealing seat 21, and the sealing seat 21 is fixedly connected with the shell 11 when the sealing member 20 is installed in place, and at least two sealing bodies 22 in the plurality of sealing bodies 22 are matched with the outer circumferential wall of the pipeline 12 to seal the space between the pipeline 12 and the through hole 111 of the shell 11.

[0066] Specifically, the plurality of sealing bodies 22 are arranged in sequence along the axial direction X of the pipeline 12, and the sealing seat 21 is connected with at least the sealing body 22 on the side facing the shell 11. When the sealing member 20 is installed in place, the plurality of sealing bodies 22 are arranged outside the shell 11, and at least two sealing bodies 22 seal the space between the pipeline 12 and the through hole 111 of the shell 11, and the at least two sealing bodies 22 form a multi-layer sealing structure 33 at the position where the pipeline 12 is led out (the position of the through hole 111), and the multi-layer sealing structure 33 is used to improve the sealing performance and reduce the possibility of sealing failure caused by scratching.

[0067] It should be understood that the plurality of sealing bodies 22 are arranged in sequence along the axial direction X of the pipeline 12, and the sealing body 22 closest to the sealing seat 21 is connected with the sealing seat 21 (the two can be connected by bonding or integrated), and the other sealing bodies 22 can be connected with the sealing seat 21 respectively (the connection can be by bonding or integrated), or can be connected layer by layer in sequence (that is, in the two adjacent sealing bodies 22, the sealing body 22 on the side facing away from the shell 11 is connected with the sealing body 22 on the side facing the shell 11).

[0068] In addition, the sealing member 20 seals the space between the through hole 111 of the shell 11 and the pipeline 12, so that the shell 11 is isolated from the outside at the position of the through hole 111 to reduce the possibility of water leakage at the position of the through hole 111.

[0069] It should be pointed out that the sealing body 22 is connected with the sealing seat 21, so that the sealing member 20 forms a complete structure, and a channel structure is formed on the complete structure, one end of the channel structure is connected with the inside of the shell 11 through the through hole 111 when the sealing body 22 is installed in place, and the other end of the channel structure is connected with the outside. The sealing seat 21 of the sealing member 20 is connected with the shell 11, and the sealing seat 21 is sealed in the circumferential direction of the through hole 111 (one end of the channel structure is sealed), and at least two sealing bodies 22 abut against the outer circumferential surface of the pipeline 12 and form a seal in the circumferential direction of the pipeline 12 (the other end of the channel structure is sealed).

[0070] In addition, the matching mode between the sealing seat 21 and the shell 11 includes but is not limited to clamping or bonding.

[0071] In some embodiments of the present application, as Figure 2As shown, the through hole 111 on the shell 11 is in the shape of a circular hole (in other embodiments, the shape of the through hole 111 can also be an oval hole or a polygonal hole), and the sealing seat 21 is in a cylindrical structure matching the shape of the through hole 111.

[0072] As shown, a groove is formed on the outer circumferential surface of the sealing seat 21, and the groove is an annular groove 211 surrounding the sealing seat 21. When the sealing member 20 is assembled, the edge of the shell 11 at the position of the through hole 111 is embedded into the annular groove 211 to achieve sealed assembly between the sealing seat 21 and the shell 11.

[0073] It should be understood that when the sealing seat 21 and the shell 11 are assembled in place, the two side walls of the annular groove 211 on the sealing seat 21 abut against the inner surface and the outer surface of the shell 11, respectively. In this way, the position of the through hole 111 can be sealed.

[0074] In addition, the body of the sealing seat 21 and the shell 11 at the position of the through hole 111 is in clamping fit (i.e., the edge of the shell 11 at the position of the through hole 111 is embedded into the annular groove 211), which facilitates assembly and thus improves the efficiency of assembly and accelerates the production rhythm.

[0075] It should be pointed out that the cross section of the annular groove 211 is in a U-shaped structure, and the thickness of the shell 11 is slightly greater than the width of the annular groove 211 (the distance between the two oppositely arranged side walls of the U-shaped structure). In this way, when the body of the shell 11 at the outer circumferential side of the through hole 111 is embedded in the annular groove 211, the annular groove 211 can be elastically deformed, increasing the abutting force between the annular groove 211 and the shell 11, thereby improving the sealing effect.

[0076] In addition, when the body of the shell 11 at the outer circumferential side of the through hole 111 is embedded in the annular groove 211, the inner circumferential wall of the through hole 111 is arranged in abutment with the bottom surface of the annular groove 211, which can further improve the sealing effect.

[0077] In some embodiments of the present application, as shown in Figure 13 and Figure 16 As shown, the cross section of the annular groove 211 is in a U-shaped structure, and the annular groove 211 has two oppositely arranged side walls in the axial direction X of the pipeline 12, which are parallel or arranged at an angle (when the two side walls are arranged at an angle, the distance between the two side walls at the opening position of the annular groove 211 is less than the distance at the bottom position of the annular groove 211).

[0078] The protrusion 212 is arranged on at least one of the two side walls of the annular groove 211, and protrudes towards the inside of the annular groove 211. When the shell 11 is arranged on the body at the outer circumferential side of the through hole 111 and the body is arranged in the annular groove 211, the shell 11 abuts against the side wall of the annular groove 211 and the protrusion 212, respectively. By arranging the protrusion 212, the sealing path between the sealing seat 21 and the shell 11 is increased, and the sealing effect is further improved.

[0079] It should be understood that the protrusion 212 extends along the extension direction of the annular groove 211, and the extension length of the protrusion 212 is equal to the circumferential length of the annular groove 211. In this way, the annular groove 211 can improve the sealing performance in the entire circumference, and further improve the sealing effect with the shell 11.

[0080] In addition, when the mounting seat is installed on the shell 11 in place, the protrusion 212 abuts against the shell 11, and the protrusion 212 is elastically deformed. In this way, the abutting strength between the protrusion 212 and the shell 11 can be increased, and the contact area between the protrusion 212 and the shell 11 can be increased.

[0081] It should be pointed out that when the two side walls of the annular groove 211 are provided with the protrusion 212, the protrusions 212 on the two side walls can be arranged oppositely or staggered.

[0082] In addition, the cross section of the protrusion 212 can be semicircular, triangular, trapezoidal or rectangular, etc. The cross section of the protrusion 212 is preferably larger at the side wall connecting end than at the side wall away end, so as to improve the processing convenience.

[0083] In addition, on the same side wall of the annular groove 211, the number of protrusions 212 can be one, two, three, four, five, etc.

[0084] In some embodiments of the present application, as shown in Figures 13 to 16 The annular groove 211 is arranged on the sealing seat 21 of the sealing element 20, and is arranged along the circumference of the sealing seat 21 and surrounds one circumference of the sealing seat 21. The protrusion 212 is arranged on the side wall of the annular groove 211, and surrounds one circumference of the sealing element 20 and forms a circular ring structure. The number of protrusions 212 on the same side wall is multiple, the multiple protrusions 212 are arranged in the radial direction Y of the through hole 111, and the circular ring structure formed by the multiple protrusions 212 is concentrically arranged.

[0085] Specifically, the plurality of convex structures 212 are arranged in a plurality of concentric circles along the radial direction Y of the through hole 111. When the sealing member 20 is installed in place on the shell 11, the convex structures 212 are elastically deformed and abut against the shell 11. By arranging a plurality of convex structures 212, the sealing path between the sealing seat 21 and the shell 11 can be further increased, and the sealing effect is further improved.

[0086] It should be noted that the plurality of concentric ring structures formed by the plurality of convex structures 212 can have equal or unequal distances between the plurality of concentric rings along the radial direction Y of the through hole 111. As a preferred embodiment, the distances between the plurality of concentric rings are equal to facilitate processing and manufacturing.

[0087] In some embodiments of the present application, as shown in Figures 13 to 16 The sealing member 20 includes a plurality of sealing bodies 22, which are arranged in sequence along the axial direction X of the pipeline 12 outside the shell 11. Each layer of the sealing body 22 is provided with a through hole, and the plurality of through holes are coaxially arranged.

[0088] Specifically, after the sealing member 20 is installed in place, the sealing seat 21 of the sealing member 20 cooperates with the body of the shell 11 at the position of the through hole 111 (the body radially outside the through hole 111 is embedded in the annular groove 211 of the sealing seat 21), the sealing seat 21 is a circular ring structure, the through hole on each layer of the sealing body 22 and the circular ring structure on the sealing seat 21 form a channel for the pipeline 12 to pass through, the sealing seat 21 seals the edge position of the through hole 111 of the shell 11, and the hole wall of the through hole 111 of at least two layers of the sealing body 22 abuts against the outer circumferential wall of the pipeline 12, thereby forming a seal for the circumferential position of the pipeline 12.

[0089] By arranging the through hole on the sealing body 22 and abutting the hole wall of the through hole against the outer circumferential wall of the pipeline 12, the outer circumferential side of the pipeline 12 is sealed. In this way, the position of the pipeline 12 can be effectively sealed, and the abutting sealing structure between the hole wall of the through hole and the outer circumferential wall of the pipeline 12 is simple and convenient to assemble.

[0090] It should be understood that the diameter of the through hole on the sealing body 22 for sealing the pipeline 12 is slightly smaller than the diameter of the pipeline 12. When the pipeline 12 passes through the through hole on the sealing body 22, the through hole is elastically deformed, thereby increasing the abutting strength between the hole wall of the through hole and the pipeline 12, and further improving the sealing between the pipeline 12 and the sealing body 22.

[0091] In some embodiments of the present application, as shown in Figure 16As shown, the number of the sealing bodies 22 of the sealing member 20 is multiple, the number of the sealing bodies 22 is even and is greater than or equal to 4, multiple layers of the adjacent sealing bodies 22 form a sealing group, the diameters of the through holes of all the sealing layers in each sealing group are the same, and the diameter of the through hole in the sealing group close to the shell 11 is greater than the diameter of the through hole in the sealing group far from the shell 11.

[0092] Specifically, the sealing member 20 comprises a sealing seat 21 and multiple layers of sealing bodies 22, the multiple layers of sealing bodies 22 are sequentially arranged along the axial direction X of the pipeline 12, and at least the sealing body 22 closest to the sealing seat 21 in the multiple layers of sealing bodies 22 is connected with the sealing seat 21, at least two layers of the adjacent sealing bodies 22 form a sealing group along the axial direction X of the pipeline 12, and multiple sealing groups are sequentially arranged along the axial direction X of the pipeline 12. When the sealing member 20 seals the leading position of the pipeline 12, the diameter of the pipeline 12 is obtained first, and the diameter of the through hole is matched with the diameter of the pipeline 12, that is, the sealing group suitable for the current pipeline 12 is found, then the sealing group far from the shell 11 of the sealing group suitable for the current pipeline 12 is removed (removed by cutting or trimming, etc.), and then the pipeline 12 is arranged in the through hole 111 of the suitable sealing group, so that the inner wall of the through hole 111 abuts against the outer peripheral wall of the pipeline 12, thereby realizing the sealing of the pipeline 12.

[0093] By setting the diameter of the through hole in the sealing group close to the shell 11 to be greater than the diameter of the through hole in the sealing group far from the shell 11 in the two adjacent sealing groups, the current sealing member 20 can be suitable for pipelines with different diameters, thereby improving the versatility of the sealing member 20.

[0094] It should be noted that the number of the sealing bodies 22 in the same sealing group can be two layers, three layers, four layers, five layers, six layers, etc. When the suitable sealing group seals the pipeline 12, the hole walls of the through holes 111 of all the sealing bodies 22 in the same sealing group abut against the outer peripheral wall of the pipeline 12, thereby realizing the individual sealing of each layer of the sealing bodies 22 in the same sealing group to the pipeline 12, and further realizing that when one of the sealing bodies 22 is scratched, the other sealing bodies 22 can effectively seal the position of the pipeline 12, so that the sealing effect of the sealing member 20 is improved.

[0095] In some embodiments of the present application, as shown in Figures 13 to 16 The sealing member 20 comprises a sealing seat 21 and multiple layers of sealing bodies 22, the multiple layers of sealing bodies 22 are sequentially arranged along the axial direction X of the pipeline 12, and at least the sealing body 22 closest to the sealing seat 21 in the multiple layers of sealing bodies 22 is connected with the sealing seat 21, and the sealing body 22 forms an arch structure in the direction away from the shell 11.

[0096] Specifically, when the sealing element 20 is installed in place, the sealing seat 21 is fixedly connected with the shell 11, the multilayer sealing body 22 is arranged outside the shell 11, and in the direction from the inside of the shell 11 to the outside, in the two adjacent layers of the sealing body 22, the sealing body 22 away from the shell 11 is connected to the sealing body 22 towards the shell 11, and the multilayer sealing body 22 forms a "tower structure". In this way, the multilayer sealing body 22 is arranged in a layer-by-layer overlapping manner, thereby forming a multilayer protection for the pipeline 12, and reducing the situation that the sealing body 22 is scratched to cause sealing failure.

[0097] It should be understood that in the present application, the sealing body 22 is arranged in an arched structure, which can reduce the possibility of water accumulation on the sealing body 22, and further reduce the situation that the sealing element 20 leaks at the position.

[0098] In addition, the sealing body 22 is arranged in an arched structure, which can increase the structural strength of the sealing body 22, and reduce the situation that the sealing body 22 is deformed due to poor strength to cause sealing failure.

[0099] In some embodiments of the present application, as shown in Figures 13 to 16 The sealing element 20 includes a sealing seat 21 and a multilayer sealing body 22, the multilayer sealing body 22 is arranged in sequence along the axial direction X of the pipeline 12, and the sealing body 22 closest to the sealing seat 21 in the multilayer sealing body 22 is connected with the sealing seat 21, and in the other two adjacent layers of the sealing body 22, the sealing body 22 away from the shell 11 is connected to the sealing body 22 towards the shell 11, and the multilayer sealing body 22 forms a "tower structure", each layer of the sealing body 22 is an arched structure formed in the direction away from the shell 11, the two adjacent layers of the sealing body 22 are nested, one end of the sealing body 22 away from the shell 11 is connected to the sealing body 22 towards the shell 11, and the other positions are spaced apart from the sealing body 22 towards the shell 11, so that the two adjacent layers of the sealing body 22 form a cavity 23, and the two adjacent layers of the sealing body 22 away from the shell 11 are spaced apart and form an opening of the cavity 23.

[0100] By arranging the cavity 23 between the two adjacent layers of the sealing body 22, the distance between the two adjacent layers of the sealing body 22 can be increased, and the situation that the inner sealing body 22 is scratched at the same time when the outer sealing body 22 is scratched can be reduced, thereby further improving the sealing performance of the sealing element 20.

[0101] In some embodiments of the present application, the sealing element 20 is arranged as a flexible element. Specifically, the sealing element 20 is arranged as a flexible element, which can cause the sealing element 20 to elastically deform when subjected to external force, so that the elastic deformation of the sealing element 20 can be used to improve the adhesion of the sealing element 20 to the sealing position, thereby further improving the sealing performance of the required sealing position.

[0102] It needs to be understood that the sealing member 20 is an integral structure, and the sealing member 20 of the integral structure can be manufactured by hot pressing or the like.

[0103] It needs to be pointed out that the sealing member 20 can be an intersection member or a silica gel member.

[0104] In some embodiments of the present application, as shown in Figures 1 to 11 In the phase change energy storage device 100, a temperature sensing assembly 30 is further included, wherein the temperature sensing assembly 30 includes a temperature sensing member 32, a retaining member 31 and a sealing structure 33, an exit hole 112 is formed on the shell 11, the retaining member 31 is connected to the shell 11 and is arranged at a position where the exit hole 112 is located, at least part of the body of the shell 11 is located inside the shell 11, and the sealing structure 33 is arranged around the periphery of the exit hole 112 and seals the combined position of the retaining member 31 and the shell 11.

[0105] The temperature sensing member 32 includes a wire body 321 and a temperature sensing portion 322, the temperature sensing portion 322 is electrically connected to the wire body 321, the temperature sensing portion 322 is arranged inside the retaining member 31, the temperature sensing member 32 obtains the temperature of the heat exchange assembly 13 through the retaining member 31, one end of the wire body 321 is connected to the temperature sensing portion 322, and the other end is led out to the outside of the shell 11 at the position of the exit hole 112.

[0106] It needs to be understood that the temperature sensing portion 322 is arranged inside the retaining member 31, which means that the temperature sensing portion 322 is accommodated inside the retaining member 31 and cannot be directly connected to the outside. One end of the wire body 321 is electrically connected to the temperature sensing portion 322, and the other end is led out to the outside of the shell 11 at the position of the exit hole 112. The other end of the wire body 321 can be electrically connected to a control device, so that the temperature sensing member can transmit the obtained temperature parameter to the control device, so that the control device can control the phase change energy storage device 100 according to the temperature parameter.

[0107] In addition, the retaining member 31 is a good conductor of heat, that is, external heat can be perceived by the temperature sensing portion 322 through the retaining member 31, so that the temperature sensing portion 322 can perceive the external temperature through the retaining member 31.

[0108] In addition, part of the body of the retaining member 31 is arranged inside the shell 11, for example, the retaining member 31 is arranged to extend in the height direction of the shell 11, the retaining member 31 can extend to a certain position in the height direction of the shell 11 (for example, a quarter position, a half position, or a three-quarter position in the height direction of the shell 11, etc.), and the position of the temperature sensing part 322 in the retaining member 31 can be adjusted as needed, so that the temperature sensing part 322 can effectively obtain the temperature at the required position, so as to control the phase change energy storage device 100 according to the temperature sensed by the temperature sensing part 322. At the same time, the retaining member 31 is inserted into the phase change material, and by adjusting the preset insertion depth of the retaining member 31 in the phase change material, the temperature sensing part 322 can obtain the temperature at the preset depth position, thereby accurately monitoring the temperature change of the phase change material in the specified area inside the phase change energy storage device 100.

[0109] It should be noted that the shell 11 is in a cubic structure, and the shell 11 has a receiving cavity formed therein, and the heat exchange assembly 13 and the phase change material are arranged in the receiving cavity, and the heat exchange assembly 13 is embedded in the phase change material. It should be noted that the heat exchange assembly 13 includes a plurality of sub-heat exchangers, and there is a gap between adjacent two sub-heat exchangers, and the phase change material can be filled in the gap, so that the heat exchange assembly 13 can be in full contact with the phase change material, so that the heat exchange assembly 13 can be in thermal conduction with the phase change material, that is, the heat exchange assembly 13 can exchange heat with the phase change material.

[0110] In addition, the temperature sensing part 322 can obtain temperature parameters, for example, a temperature sensor, etc.

[0111] In the present application, the wire body 321 of the temperature sensing member 32 is led out at the position of the lead-out hole 112, and the sealing structure 33 is arranged between the retaining member 31 and the shell 11. The sealing structure 33 seals the combined position of the retaining member 31 and the shell 11 along the circumferential direction of the lead-out hole 112, thereby improving the sealing performance at the position of the lead-out hole 112, reducing the temperature at which the lead-out position of the wire body 321 leaks water, and thereby reducing the failure rate of the phase change energy storage device 100.

[0112] In some embodiments of the present application, a through channel 314 including a first end and a second end is formed in the retaining member 31, and the first end and the second end are arranged opposite to each other, wherein the first end is arranged towards the inside of the shell 11, and the second end is arranged towards the outside of the shell 11, the first end is a closed structure, and the second end is an open structure. The temperature sensing part 322 of the temperature sensing member 32 is inserted into the through channel 314, one end of the wire body 321 of the temperature sensing member 32 is electrically connected with the temperature sensing part 322, and the other end is led out to the outside of the shell 11 through the second end of the through channel 314.

[0113] The through channel 314 is provided so that the temperature sensing part 322 can be effectively mounted to the inside of the holding member 31. Meanwhile, the through channel 314 is a straight channel structure, and the temperature sensing part 322 can be arranged at any position of the through channel 314 as needed, thereby improving the mounting precision of the temperature sensing part 322.

[0114] It should be noted that a limiting structure is arranged at the mounting position of the temperature sensing part 322 in the through channel 314. After the temperature sensing part 322 is mounted in place in the through channel 314, the limiting structure cooperates with the temperature sensing part 322 to fix the temperature sensing part 322 at the mounting position, thereby improving the mounting precision of the temperature sensing part.

[0115] The limiting structure can be in convex-concave cooperation with the temperature sensing part 322. For example, the limiting structure is an annular protrusion 212 arranged in the circumferential direction of the through channel 314, and an annular groove is arranged on the outer circumferential surface of the temperature sensing part 322. When the temperature sensing part 322 is mounted in place, the annular protrusion 212 is embedded in the annular groove, thereby fixing the temperature sensing part 322.

[0116] In addition, a sealing structure 33 is arranged between the second port and the wire body 321. The sealing structure 33 seals the position between the wire body 321 and the second port to reduce the flow of water into the through channel 314 through the second port. The sealing structure 33 can be a sealing rubber ring or sealing glue.

[0117] In some embodiments of the present application, as shown in Figures 1 to 11 The temperature sensing assembly 30 includes a holding member 31, a sealing structure 33, and a temperature sensing member 32. An exit hole 112 is arranged on the shell 11. The holding member 31 is connected to the shell 11 and arranged at the position of the exit hole 112. At least part of the body of the shell 11 is located inside the shell 11. The sealing structure 33 is arranged around the circumferential direction of the exit hole 112 and seals the combined position of the holding member 31 and the shell 11.

[0118] Specifically, the holding member 31 includes a first connecting seat 312 and a pipe body 311. The hollow structure inside the pipe body 311 constitutes a through channel 314. One end (first end) of the pipe body 311 is a closed structure, and the other end (second end) is an open structure. The first connecting seat 312 is arranged on the pipe body 311. Along the axial direction X of the pipe body 311, the distance between the first connecting seat 312 and the closed end (first end) of the pipe body 311 is greater than the distance between the first connecting seat 312 and the open end (second end) of the pipe body 311. The first connecting seat 312 is connected and fixed to the shell 11. The sealing structure 33 is sealingly arranged between the first connecting seat 312 and the shell 11. The sealing structure 33 is arranged around the exit hole 112. At least part of the pipe body 311 is arranged inside the shell 11. The pipe body 311 is coaxially arranged with the exit hole 112.

[0119] It needs to be understood that the hole diameter of the lead-out hole 112 is greater than or equal to the outer diameter of the tube body 311, so that when part of the body of the tube body 311 is located outside the shell 11, the tube body 311 is led out through the lead-out hole 112, the projection of the connecting seat on the shell is located outside the lead-out hole 112, and the sealing structure 33 is arranged between the connecting seat and the shell 11 and can form a seal to the radially outer side of the lead-out hole 112, thereby reducing the flow of water into the inside of the shell 11 from the position of the lead-out hole 112, and thus reducing the failure of the phase change energy storage device 100 caused by the water entering the inside of the shell 11 from the lead-out position of the wire body 321 of the temperature sensing element 32.

[0120] It needs to be pointed out that the first connecting seat 312 can be fixed on the outer surface of the shell 11 or on the inner surface of the shell 11.

[0121] In addition, the connection mode between the first connecting seat 312 and the shell 11 includes but is not limited to bonding, welding, clamping, or connecting through a connecting piece, etc. The tube body 311 is a straight tube structure, and the extension direction of the tube body 311 can be consistent with the height direction of the shell 11 or be arranged at an angle to the height direction of the shell 11.

[0122] In addition, the first connecting seat 312 can be an integral structure with the tube body 311, or can be a split structure with the tube body 311. When the first connecting seat 312 is an integral structure with the tube body 311, it is processed and manufactured by integral molding, and when the first connecting seat 312 is a split structure with the tube body 311, the two can be connected and fixed together after split processing.

[0123] In the present application, the tube body 311 includes two opposite ends, one end (first end) is arranged in the shell 11, and the other end (second end) is led out through the lead-out hole 112 or abuts against the inner wall of the shell 11.

[0124] In some embodiments of the present application, part of the tube body 311 (the part with the first end, i.e. the closed end) is arranged in the shell 11, and the other part of the tube body 311 (the part with the second end, i.e. the open end) is arranged outside the shell 11, the first connecting seat 312 is fixed on the outer peripheral surface of the tube body 311, the first connecting seat 312 is arranged inside the shell 11 and connected with the inner wall of the shell 11, and the other part of the tube body 311 is led out to the outside of the shell 11 through the lead-out hole 112. Among them, the structure that the tube body 311 is located outside the shell 11 is applied to assemble and connect with other parts of the phase change energy storage device 100, so as to improve the fixing strength of the retaining member 31, and also realize the installation of other parts of the phase change energy storage device 100.

[0125] In some embodiments of the present application, as Figure 10 and Figure 11As shown, the retaining member 31 is arranged inside the shell 11, wherein one end (first end, i.e. closed end) of the tubular body 311 is suspended inside the shell 11, the other end (open end) of the tubular body 311 abuts against the inner wall of the shell 11, the tubular body 311 is coaxially arranged with the lead-out hole 112, the first connecting seat 312 is connected to the outer circumferential surface of the tubular body 311 and connected with the inner wall of the shell 11, the first connecting seat 312 is arranged around the tubular body 311, and the sealing structure 33 is arranged around the through hole 111 between the first connecting seat 312 and the shell 11.

[0126] By arranging the retaining member 31, the sealing structure 33 can seal the combined position between the first connecting seat 312 and the shell 11 in the circumferential direction of the lead-out hole 112, thereby improving the sealing performance of the lead-out hole 112 position and reducing the possibility of failure of the phase change energy storage device 100 due to water leakage at the lead-out hole 112 position.

[0127] It should be noted that in the present application, the surface of the first connecting seat 312 facing the inner wall of the shell 11 is the first end surface 3121, which is flush with the other end of the tubular body 311. When the other end of the tubular body 311 abuts against the inner wall of the shell 11, the first end surface 3121 also abuts against the inner wall of the shell 11. In this way, the fit between the retaining member 31 and the shell 11 can be improved, thereby further improving the sealing performance at the lead-out hole 112 position.

[0128] In addition, the sealing structure 33 can be a sealing ring or a sealing glue structure.

[0129] In some embodiments of the present application, as shown in Figure 5 The sealing structure 33 is arranged as a sealing ring, the retaining member 31 is arranged inside the shell 11, the sealing ring is arranged around the radial outer side of the lead-out hole 112 and is sleeved on the outer side of the pipeline 12, and after the retaining member 31 is connected to the shell 11, the sealing ring is clamped between the first end surface 3121 of the first connecting seat 312 and the inner wall of the shell 11.

[0130] Specifically, the sealing ring is a flexible structure, which can elastically deform. After the first connecting seat 312 is connected to the inner wall of the shell 11, the sealing ring is clamped between the first end surface 3121 of the first connecting seat 312 and the inner wall of the shell 11, and at this time the sealing ring elastically deforms. The sealing ring elastically deforms to seal the first end surface 3121 and the inner wall of the shell 11, thereby forming a seal on the radial outer side of the lead-out hole 112, and thereby reducing the possibility of water leakage at the lead-out hole 112 position.

[0131] It should be noted that the sealing ring can be a rubber ring or a silicone ring.

[0132] In some embodiments of the present application, as shown in Figures 4 to 8 The inner wall of the shell 11 and the first end surface 3121 of the first connecting seat 312 are provided with a receiving groove 3122, which is an annular groove 211 surrounding the lead-out hole 112, and part of the body of the sealing ring is embedded in the receiving groove 3122.

[0133] By providing the receiving groove 3122, the position of the sealing ring is limited by the receiving groove 3122, reducing the displacement of the sealing ring, improving the installation accuracy of the sealing ring, thereby improving the sealing performance and reducing the water leakage point at the position of the lead-out hole 112.

[0134] It should be understood that the receiving groove 3122 can be provided only on the first end surface 3121 of the first connecting seat 312, or only on the inner wall of the shell 11, or on the first end surface 3121 and the inner wall of the shell 11 respectively.

[0135] For example, the receiving groove 3122 is provided only on the first connecting seat 312, and part of the sealing ring is embedded in the receiving groove 3122. When the first connecting seat 312 is connected to the shell 11 in place, the body of the sealing ring outside the receiving groove 3122 is elastically deformed by being extruded by the inner wall of the shell 11 to achieve sealing.

[0136] In some embodiments of the present application, as shown in Figure 10 and Figure 11 The retaining member 31 is arranged inside the shell 11, one end (first end, i.e. closed end) of the pipe body 311 is suspended inside the shell 11, the other end (open end) of the pipe body 311 abuts against the inner wall of the shell 11, the pipe body 311 is coaxially arranged with the lead-out hole 112, the first connecting seat 312 is connected to the outer circumferential surface of the pipe body 311, the first connecting seat 312 is arranged around the pipe body 311, the side of the first connecting seat 312 facing the inner wall of the shell 11 is the first end surface 3121, the first end surface 3121 is flush with the other end of the pipe body 311, the first end surface 3121 abuts against and is connected to the inner wall of the shell 11, the other end of the pipe body 311 is coaxially arranged with the lead-out hole 112, and the sealing structure 33 is arranged between the first connecting seat 312 and the shell 11, and the sealing structure 33 is arranged around the through hole 111.

[0137] Specifically, the first end surface 3121 is provided with a connecting portion 3123, the number of the connecting portion 3123 is at least one, and the connecting portion 3123 is arranged between the sealing structure 33 and the pipe body 311 in the radial direction Y of the pipe body 311. The housing 11 is provided with a connecting hole 113, the number of the connecting hole 113 is consistent with the number of the connecting portion 3123, and each connecting hole 113 is arranged in correspondence with one connecting portion 3123. The fastener (for example, a screw, etc.) is arranged in the temperature sensing assembly 30, and part of the fastener is arranged outside the housing 11, penetrates through the connecting hole 113, and is matched with the connecting portion 3123, so as to fix the first connecting seat 312 and the housing 11.

[0138] By arranging the connecting portion 3123, the connecting hole 113, and the fastener, the retaining member 31 can be fixed and mounted outside the housing 11, and the assembly convenience is improved.

[0139] In addition, the connecting portion 3123 is arranged between the sealing structure 33 and the pipe body 311 in the radial direction Y of the pipe body 311, the outer side of the connecting portion 3123 is sealed by the sealing structure 33, the connecting position does not need to be sealed separately, the structure is simplified, and the manufacturing cost is reduced.

[0140] It should be noted that the connecting portion 3123 is a hole structure (a non-penetrating hole), and the connection mode between the fastener and the connecting portion 3123 includes but is not limited to threaded connection, adhesion, or clamping, etc.

[0141] In addition, the number of the connecting portion 3123 can be one, two, three, four, five, six, etc. When the number of the connecting portion 3123 is multiple, the connecting portion 3123 is arranged in the circumferential direction of the pipe body 311, the number of the connecting hole 113 is consistent with the number of the connecting portion 3123, and is arranged one by one, and the number of the fastener is also consistent with the number of the connecting portion 3123. By arranging multiple connecting portions 3123, the connecting position between the first connecting seat 312 and the housing 11 is increased, the connection strength and stability of the first connecting seat 312 and the housing 11 are improved, and the sealing performance of the lead-out hole 112 position is effectively improved.

[0142] In some embodiments of the present application, as Figure 10 and Figure 11As shown, the retaining member 31 is arranged inside the housing 11, wherein one end (first end, i.e. closed end) of the tubular body 311 is suspended inside the housing 11, the other end (open end) of the tubular body 311 abuts against the inner wall of the housing 11, the tubular body 311 is coaxially arranged with the lead-out hole 112, the first connecting seat 312 is connected to the outer circumferential surface of the tubular body 311, the first connecting seat 312 is arranged around the tubular body 311, the side of the first connecting seat 312 facing the inner wall of the housing 11 is the first end face 3121, the first end face 3121 is flushly arranged with the other end of the tubular body 311, the first end face 3121 abuts against and is connected to the inner wall of the housing 11, the other end of the tubular body 311 is coaxially arranged with the lead-out hole 112, the sealing structure 33 is arranged between the first connecting seat 312 and the housing 11, and the sealing structure 33 is arranged around the through hole 111. The first limiting structure 3124 is arranged on the first end face 3121, and in the radial direction Y of the tubular body 311, the first limiting structure 3124 is located between the tubular body 311 and the sealing structure 33. The second limiting structure 114 is arranged on the housing 11 and is in concave-convex cooperation with the first limiting structure 3124.

[0143] The first limiting structure 3124 and the second limiting structure 114 are arranged, so that positioning installation during installation of the first connecting seat 312 is realized, the installation precision of the first connecting seat 312 is improved, and meanwhile, assembly of the first connecting seat 312 is facilitated, so that the efficiency of assembly is effectively improved.

[0144] In addition, in the radial direction Y of the tubular body 311, the first limiting structure 3124 is located between the sealing structure 33 and the tubular body 311, the outer side of the first limiting structure 3124 is sealed by the sealing structure 33, and a separate sealing treatment of the limiting position is not needed, so that the structure is simplified, and the manufacturing cost is reduced.

[0145] It should be noted that the first limiting structure 3124 and the second limiting structure 114 are in concave-convex cooperation, the limiting structure formed by the concave-convex cooperation is simple in structure, is convenient for processing and manufacturing, can effectively reduce the manufacturing cost, and in addition, the limiting structure in concave-convex cooperation is convenient for assembly, and can effectively improve the efficiency of assembly.

[0146] The specific structure of the first limiting structure 3124 and the second limiting structure 114 can be that the first limiting structure 3124 is a convex structure, the second limiting structure 114 is a hole structure, or the first limiting structure 3124 is a hole structure, and the second limiting structure 114 is a convex structure.

[0147] In some embodiments of the present application, as shown in Figure 10 and Figure 11As shown, the retaining member 31 further comprises a second connecting seat 313, which is connected to the outer circumferential surface of the pipe body 311 along with the first connecting seat 312, and is arranged in the axial direction X of the pipe body 311 and spaced apart from the first connecting seat 312.

[0148] The body 10 further comprises a limiting member 14 arranged in the shell 11, and a through hole 141 is formed in the limiting member 14 for the pipe body 311 of the retaining member 31 to pass through. The limiting member 14 is fixed in the shell 11 (for example, it can be connected with the heat exchange assembly 13, or connected with other structures in the shell 11, etc.). When the retaining member 31 is installed, the pipe body 311 passes through the through hole 141 on the limiting member 14, the first connecting seat 312 abuts against the inner wall of the shell 11, the second connecting seat 313 abuts against the end face of the limiting member 14 facing the lead-out hole 112, and the pipe body 311 is coaxially arranged with the lead-out hole 112. By arranging the limiting member 14 and cooperating the limiting member 14 with the second connecting seat 313, the fixed position of the pipe body 311 is increased, thereby improving the fixing strength of the retaining member 31 and reducing the situation that the temperature parameter collected by the temperature sensing member 32 is inaccurate due to the shaking of the pipe body 311.

[0149] In addition, a limiting hole 142 is arranged on the limiting member 14, and a limiting protrusion 3131 is arranged on the second connecting seat 313, which is embedded in the limiting hole 142 to limit the second connecting seat 313 in the radial direction Y of the pipe body 311, thereby improving the limiting of the retaining member 31 and improving the structural stability of the retaining member 31.

[0150] The second aspect of the present application provides a heating and cooling system, which comprises the phase change energy storage device 100 according to the above.

[0151] In the present application, the structures of other parts of the heating and cooling system are referred to the prior art, which will not be described herein. The above description is only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application can be easily thought by those skilled in the art, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0152] In the present application, the structures of other parts of the heating and cooling system are referred to the prior art, which will not be described herein. The above description is only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application can be easily thought by those skilled in the art, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A phase change energy storage device, characterized by, The phase change energy storage device comprises: A machine body comprising a shell and a heat exchange assembly arranged in a receiving space formed by the shell, the shell being provided with an outlet hole; A temperature sensing assembly comprising a holder, a temperature sensing part and a sealing structure, the holder being arranged at a position of the outlet hole and connected with the shell, at least part of the holder being arranged in the receiving space formed by the shell, the sealing structure being arranged at a joint position of the holder and the shell and being arranged around the periphery of the outlet hole, the temperature sensing part comprising a temperature sensing portion and a wire body connected with each other, the temperature sensing portion being arranged inside the holder and obtaining the temperature of the heat exchange assembly through the holder, the wire body being led out to the outside of the shell at the position of the outlet hole.

2. The phase change energy storage device of claim 1, wherein, The holder is provided with a penetrating channel comprising first and second ends arranged oppositely, the first end being arranged towards the inside of the shell and being a closed structure, the second end being arranged towards the outside of the shell and being an open structure, the temperature sensing portion being arranged in the penetrating channel, one end of the wire body being arranged in the penetrating channel and connected with the temperature sensing portion, the other end of the wire body being arranged outside the shell through the second end.

3. The phase change energy storage device of claim 2, wherein, The holder comprises: A pipe body, the inside of the pipe body constituting the penetrating channel, at least part of the pipe body being arranged in the shell and being arranged coaxially with the outlet hole; A first connecting seat being arranged on the pipe body and connected with the shell, the sealing structure being arranged at a joint position of the first connecting seat and the shell.

4. The phase change energy storage device of claim 3, wherein, One end of the pipe body is arranged in the shell, the other end of the pipe body abutting against the inner wall of the shell or being led out through the outlet hole.

5. The phase change energy storage device of claim 3, wherein, The first connecting seat comprises a first end face, at least part of the first end face abutting against the inner wall of the shell, the sealing structure being arranged between the first end face and the inner wall of the shell and being arranged around the periphery of the outlet hole.

6. The phase change energy storage device of claim 5, wherein, The sealing structure is a flexible sealing ring, the flexible sealing ring being clamped between the first end face and the inner wall of the shell.

7. The phase change energy storage device of claim 6, wherein, At least one of the first end face and the inner wall of the shell is provided with a receiving groove, part of the flexible sealing ring being embedded in the receiving groove along the axial direction of the pipe body.

8. The phase change energy storage device of claim 5, wherein, The first end face is provided with at least one connecting portion, the at least one connecting portion being arranged between the pipe body and the sealing structure along the radial direction of the pipe body, the shell being provided with connecting holes consistent in number with the connecting portions, the connecting holes being arranged one by one corresponding to the connecting portions, the temperature sensing assembly further comprising a fastener, the fastener being connected with the connecting portions through the connecting holes to fix the first connecting seat with the shell.

9. The phase change energy storage device of any one of claims 5 to 8, wherein, The first end face is provided with a first limiting structure, the first limiting structure being located between the pipe body and the sealing structure along the radial direction of the pipe body, the shell being provided with a second limiting structure, the first limiting structure and the second limiting structure being concave-convex matched; And / or, the machine body further comprises a limiting piece, the limiting piece is arranged in the machine body, the limiting piece is provided with a through hole, the retaining piece further comprises a second connecting seat, the second connecting seat is arranged on the pipe body, and the second connecting seat is arranged at intervals with the first connecting seat along the axial direction of the pipe body, the pipe body is arranged in the through hole, and the second connecting seat is arranged opposite to the side of the limiting piece facing the first connecting seat.

10. A heating and ventilation system, characterized in that The heating and ventilation system comprises the phase change energy storage device according to any one of claims 1 to 9.

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