WO2024021674A1

WO2024021674A1 - Heat collector

Info

Publication number: WO2024021674A1
Application number: PCT/CN2023/086826
Authority: WO
Inventors: 刘斌; 周志成; 姜立军; 巩顺
Original assignee: 青岛经济技术开发区海尔热水器有限公司; 海尔智家股份有限公司
Priority date: 2022-07-29
Filing date: 2023-04-07
Publication date: 2024-02-01
Also published as: CN117515923A

Abstract

The present disclosure relates to the technical field of water heaters, and particularly relates to a heat collector. The heat collector provided in the present disclosure comprises a housing assembly, a support assembly, a heat absorption plate and a heat collection tube assembly, wherein the housing assembly is provided with a sealed cavity; the support assembly, the heat absorption plate and the heat collection tube assembly are all arranged in the sealed cavity; the support assembly comprises a plurality of supports, which are supported on different sides of an inner wall of the sealed cavity; and the heat collection tube assembly is connected to the heat absorption plate. The heat absorption plate is supported on at least some of the supports, such that the structural strength is improved, thereby preventing the housing assembly from collapsing due to vacuum, and thus prolonging the service life of the heat collector.

Description

Collector

This application claims priority to the Chinese patent application filed with the China Patent Office on July 29, 2022, with application number 202210904969.6 and the application name "Heat Collector", the entire content of which is incorporated into this application by reference.

Technical field

The present invention relates to the technical field of water heaters, and in particular to a heat collector.

Background technique

A collector is a device that converts solar radiation energy into heat energy. In modern high-rise residential buildings, because the space is relatively small, it is very difficult to install solar water heaters on the roof. Therefore, the water tank and the collector are separated. The water tank is installed in a balcony where it is convenient to place it, while the collector can be hung externally on the building surface.

In the related art, a heat collector usually includes a shell and a heat absorber arranged in the shell. The heat absorber can absorb solar energy. In addition, there are pipes inside the shell. The heat absorber can transfer heat to the medium in the pipe. In order to ensure the efficiency of heat transfer, the inside of the shell is a relatively closed space to reduce the dissipation speed of heat energy.

However, in scenarios where the temperature difference between day and night is large, the temperature inside the collector changes greatly, causing the air pressure inside the collector to change greatly. When the negative pressure inside the shell is large, the shell is easily deflated.

Application content

This application provides a heat collector to solve the current technical problem that the outer shell of the heat collector is easily collapsed under negative pressure conditions in the internal space of the heat collector.

The present application provides a heat collector. The heat collector includes a shell component, a support component, a heat absorbing plate and a heat collecting tube component. The shell component has a sealed cavity, and the supporting component, the heat absorbing plate and the heat collecting tube component are all arranged in a sealed cavity. inside the cavity.

Wherein, the support assembly includes a plurality of support frames, the plurality of support frames are supported on different sides of the inner wall of the sealed cavity, the heat collecting tube assembly is connected to the heat absorbing plate, and the heat absorbing plate is supported on at least part of the supporting frames.

The heat collector provided by this application supports the shell assembly by setting a support frame inside, so that when the vacuum degree inside the collector is high and the shell assembly is squeezed by the external atmospheric pressure, the support frame can be used It can withstand pressure on the shell components and improve the structural strength to prevent the shell components from being collapsed and extend the service life of the collector.

As an optional implementation, the sealed chamber is a vacuum chamber.

Such an arrangement can make the gas in the sealed cavity relatively thin, thereby reducing the efficiency of heat radiation and heat conduction inside the collector, preventing heat from escaping, and improving the heat utilization rate of the heat absorbing plate.

As an optional implementation, the housing assembly may include a frame, a first cover, and a second cover. The first cover and the second cover are located on opposite sides of the frame, and the frame, the first cover, and The second cover plates together form a sealed cavity; the plurality of support frames include a first support frame and a second support frame, the first support frame extends from the first side of the frame to the second side of the frame, and the second support frame extends from the frame The third side extends to the fourth side of the frame.

With this arrangement, various positions of the frame can be supported through different support frames. When the frame is subjected to the squeeze of external atmospheric pressure, each side of the frame can maintain a stable shape.

As an optional embodiment, there are multiple first support frames and multiple second support frames, the plurality of first support frames are arranged in parallel and spaced apart from each other, and the plurality of second support frames are arranged in parallel and spaced apart from each other; the first support The frame is supported between the first cover plate and the second cover plate, and the second support frame connects the plurality of first support frames in sequence.

With this arrangement, the first cover plate and the second cover plate can be supported to prevent the first cover plate and the second cover plate from being collapsed. At the same time, the interconnected support frames can improve the structural strength and reliability of the support assembly.

As an optional implementation, a first slot is provided on the first support frame, and a second slot is provided on the second support frame. The first support frame and the second support frame are arranged perpendicularly to each other, and the first slot is provided on the second support frame. The slot and the second slot are plugged into each other.

Such arrangement can improve the convenience of assembly between the first support frame and the second support frame.

As an optional implementation, the first cover plate can be a light-transmitting plate, the side of the heat absorbing plate facing the first cover plate has a heat absorbing coating, and the heat collecting tube assembly can be located on the side of the heat absorbing plate facing away from the first cover plate. One side is connected to the heat absorbing plate, and there is a gap between the heat collecting tube assembly and the supporting frame.

Such an arrangement can prevent the support frame from absorbing the heat of the heat collecting pipe assembly through heat conduction, ensuring that the heat of the heat collecting pipe assembly can be effectively utilized.

As an optional implementation, the first support frame has a plurality of support parts on one side facing the first cover plate, a plurality of through holes are provided on the heat absorbing plate, and the plurality of support parts pass through the plurality of through holes and The first cover plate is in contact.

Such an arrangement can maximize the heat absorption area of the heat absorption plate and improve the heat absorption efficiency.

As an optional implementation, the second support frame may be located on the side of the heat absorbing plate facing the second cover plate, and the second supporting frame has an escape groove on the side facing the heat absorbing plate, and the relief grooves are located on two adjacent Between the first support frames, the heat collector tube assembly may include a heat collector tube. The heat collector tube is located between two adjacent first support frames, and the heat collector tube may extend along the length direction of the first support frame. The heat collector tube passes through the avoidance groove, and there is a gap between the heat collecting tube and the groove wall of the escape groove.

Such an arrangement can prevent the heat collecting tube from contacting the support frame, improve space utilization in the sealed cavity, and reduce the thickness of the heat collector.

As an optional implementation, the heat collecting tube assembly may also include an inflow tube, a return tube, and a connecting tube. The heat collecting tube may include a first heat collecting tube and a second heat collecting tube. The first heat collecting tube and the second heat collecting tube are arranged at intervals. In the sealed cavity, the inflow pipe is connected to the first heat collecting pipe, the return pipe is connected to the second heat collecting pipe, and the connecting pipe can connect the first heat collecting pipe to the second heat collecting pipe.

With this arrangement, a fluid medium circulates in the heat collecting tube, which can absorb heat and conduct the heat out of the heat collector for use.

As an optional implementation, the heat collector may also include a buffer member, a first sealing member and a second sealing member. The buffering member is arranged on the frame, and the buffering member extends along the inside of the frame and forms a closed ring; the first The sealing member is disposed between the edge of the first cover plate and the frame. The first sealing member surrounds the frame to form a closed ring. The second sealing member is disposed between the edge of the second cover plate and the frame. The second sealing member surrounds the frame to form a closed ring. ring shape.

Such an arrangement can ensure that the sealing cavity has good sealing performance.

The heat collector provided by this application includes a shell assembly, a support assembly, a heat absorbing plate and a heat collecting tube assembly. The shell assembly has a sealed cavity. The supporting assembly, the heat absorbing plate and the heat collecting pipe assembly are all arranged in the sealed cavity. The supporting assembly includes Multiple support frames are supported on different sides of the inner wall of the sealed cavity. The heat collecting tube assembly is connected to the heat absorbing plate. The heat absorbing plate is supported on at least part of the supporting frames, thereby improving the structural strength and preventing the shell assembly from being damaged. Absorption deflation extends the service life of the collector.

In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by the technical features of these technical solutions, there are other technical problems that can be solved by the heat collector provided by the present application. , other technical features included in the technical solution and The beneficial effects brought by these technical features will be further described in detail in the specific implementation modes.

Description of drawings

Figure 1 is a schematic structural diagram of a heat collector provided by an embodiment of the present application;

Figure 2 is an internal schematic diagram of the heat collector provided by the embodiment of the present application;

Figure 3 is an exploded view of the heat collector provided by the embodiment of the present application;

Figure 4 is a schematic cross-sectional view of a heat collector provided by an embodiment of the present application;

Figure 5 is a partial view of position A in Figure 4;

Figure 6 is a partial view of position B in Figure 4;

Figure 7 is a schematic structural diagram of the first support member in the heat collector provided by the embodiment of the present application;

Figure 8 is a schematic structural diagram of the first support member in the heat collector provided by the embodiment of the present application;

Figure 9 is a schematic structural diagram of the heat collecting tube assembly in the heat collector provided by the embodiment of the present application.

Explanation of reference symbols:

100-heat collector; 101-sealed cavity; 110-shell assembly; 111-frame; 1111-first side; 1112-second side; 1113-third side; 1114-fourth side; 1115-accommodation tank ; 1116-Reinforcement rib; 112-First cover plate; 113-Second cover plate; 120-Buffer assembly; 121-First buffer member; 122-Second buffer member; 130-Support component; 131-First support frame ; 1311-support part; 1312-first slot; 132-second support frame; 1321-avoidance groove; 1322-second slot; 140-heat absorption plate; 141-through hole; 150-heat collector assembly; 151 -Inflow pipe; 152-return pipe; 153-collector pipe; 153a-first collector pipe; 153b-second collector pipe; 154-connecting pipe; 161-first seal; 162-second seal.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, rather than all embodiments.

First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application situations.

Secondly, it should be noted that in the description of the present invention, the terms "inner", "outer", etc. refer to The terms shown in the directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore It should not be construed as a limitation of the present invention.

In addition, it should be noted that in the description of the present invention, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like is intended to be incorporated into the description of the implementation. An example or example describes a specific feature, structure, material, or characteristic that is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Water heaters are common equipment that use solar energy to heat water. Modern high-rise residential buildings have relatively small spaces, so it is very difficult to install solar water heaters on the roof. The collector is a device that converts solar radiation energy into heat energy. Therefore, it is a commonly used method to separate the water tank and the heat collector, install the water tank in a balcony where it is convenient to place, and the heat collector can be hung on the surface of the building. At present, the heat collector usually includes a frame. and a heat absorber arranged in the frame. The heat absorber can absorb solar energy and convert it into heat energy, and transfer the heat energy to the pipes inside the frame. There is a circulating fluid medium in the pipes. The fluid medium takes the heat out for utilization after absorbing the heat. , and in order to ensure the efficiency of heat transfer, the interior of the frame is a relatively closed space to reduce the dissipation speed of heat energy.

However, in scenarios where the temperature difference between day and night is large, the temperature inside the collector changes greatly, causing the air pressure inside the collector to change greatly. When the negative pressure inside the frame is large, the frame is under the external atmospheric pressure. It is easy to be deflated under the squeeze, shortening the service life of the collector.

In view of the above problems, embodiments of the present application provide a heat collector. The inside of the heat collector is set as a sealed cavity to reduce the heat dissipation speed. By arranging a support structure, the heat collector shell is protected from all directions. Support to improve the structural strength of the collector shell, thereby preventing the collector from being collapsed when there is negative pressure inside, thereby extending the service life of the collector.

In order to facilitate understanding, the application scenarios applicable to the embodiments of the present application are first described below.

The heat collector provided by the embodiment of the present application can be used in daily household water heaters to heat daily water. It can also be used in shopping malls, bathrooms and other scenes that require the use of hot water, or can also be used in other situations that require the use of hot water. or thermal energy industrial applications. In addition, depending on the specific application environment, the heat absorbed by the collector can directly heat water, or it can also heat other fluid media with different specific heat capacities, and then the heated fluid The medium is used to conduct heat, which is not specifically limited in the embodiments of this application. The technical solution of the storage cabinet in the embodiment of the present application will be described below.

Figure 1 is a schematic structural diagram of a heat collector provided by an embodiment of the present application. Figure 2 is an internal schematic diagram of a heat collector provided by an embodiment of the present application. Figure 3 is an exploded view of the heat collector provided by an embodiment of the present application. Figure 4 As a schematic cross-sectional view of the heat collector provided in the embodiment of the present application, Figure 5 is a partial view of position A in Figure 4, and Figure 6 is a partial view of position B in Figure 4.

As shown in Figures 1 to 6, the heat collector 100 provided by the embodiment of the present application includes a shell component 110, a support component 130, a heat absorption plate 140 and a heat collecting tube component 150. The shell component 110 has a sealed cavity 101, and the support component 130. The heat absorbing plate 140 and the heat collecting tube assembly 150 are both arranged in the sealed cavity 101.

It can be understood that the heat absorbing plate 140 and the heat collecting tube assembly 150 are both arranged in the sealed cavity 101. Sunlight can pass through one side of the housing assembly 110 and enter the sealed cavity 101, and shine on the heat absorbing plate 140, absorbing the heat. The heat plate 140 is used to absorb solar energy and convert it into heat energy. The heat-absorbing plate 140 can transfer the heat energy to the heat collecting tube assembly 150. The heat collecting tube assembly 150 has a circulating fluid medium. The fluid medium flows into the heat collecting tube assembly 150 to absorb heat. Then flow out, thereby realizing the use of thermal energy.

In some embodiments, the support assembly 130 includes a plurality of support frames, which are supported on different sides of the inner wall of the sealed cavity 101. The heat collection tube assembly 150 is connected to the heat absorption plate 140, and the heat absorption plate 140 is supported on at least part of the support. on the shelf.

It should be noted that the heat collector 100 absorbs heat under the condition that it can be exposed to sunlight during the day. At this time, the temperature of the sealed cavity 101 is higher and the pressure in the sealed cavity 101 is also higher. At night, the heat collector 100 absorbs heat. In the evening environment, the ambient temperature outside the collector 100 is low, and the collector 100 cannot absorb sunlight. At this time, the temperature inside the sealed cavity 101 is low, and the pressure in the sealed cavity 101 is also low. Therefore, as day and night alternate, Alternate hot and cold impact loads will be formed in the sealed cavity 101. The support assembly 130 is arranged in the sealed cavity 101 to bear the pressure for the housing assembly 110 and improve the structural strength to prevent the housing assembly 110 from being collapsed, thereby extending the assembly time. The service life of the heater.

In addition, after the heat-absorbing plate 140 absorbs heat, the heat utilization efficiency can be improved through two ways. The first way is to improve the heat conduction efficiency of the heat-collecting tube assembly 150 so that the heat absorbed by the heat-absorbing plate 140 can be exported for use as quickly as possible. , the second way is to prevent the heat absorbed by the heat absorbing plate 140 from escaping outward from the sealed cavity 101 , that is, to reduce the heat conduction efficiency of the internal space of the sealed cavity 101 .

Those skilled in the art can understand that the sealed cavity 101 can be a vacuum cavity, that is, the sealed cavity 101 is a cavity environment that is approximately vacuum. After the assembly of the heat collector 100 is completed, the sealed cavity 101 can be evacuated to form a certain A certain degree of negative pressure, the sealed cavity 101 has a certain degree of vacuum, and then a certain amount of inert gas is filled into the sealed cavity 101, thereby reducing the heat conduction rate of the space in the sealed cavity 101 and preventing the heat from the heat absorbing plate 140 If dissipation occurs, the embodiment of the present application does not specifically limit the numerical range of the vacuum degree in the sealed cavity 101 .

First, the arrangement and structure of the support assembly 130 will be described in detail below.

Please continue to refer to FIGS. 1 to 6 . In a possible implementation, the housing assembly 110 may include a frame 111 , a first cover 112 , and a second cover 113 , where the first cover 112 and the second cover 113 The plates 113 are respectively covered on opposite sides of the frame 111, and together with the frame 111, form a sealed cavity 101. The plurality of support frames include a first support frame 131 and a second support frame 132. The two support brackets 132 are respectively abutted on different sides of the frame 111 .

It can be understood that the frame 111 may be a square frame structure, and the frame 111 has a first side 1111, a second side 1112, a third side 1113 and a fourth side 1114, wherein the first side 1111 and the second side 1112 are the frame 111 On opposite sides of the length direction, the first support frame 131 extends from the first side 1111 of the frame 111 to the second side 1112 of the frame 111, and the third side 1113 and the fourth side 1114 are respectively opposite sides of the width direction of the frame 111. On both sides, the second support frame 132 extends from the third side 1113 of the frame 111 to the fourth side 1114 of the frame 111 .

When the length direction of the frame 111 is squeezed by external air pressure, the first supporting frame 131 can play a supporting role. When the width direction of the frame 111 is squeezed by external air pressure, the second supporting frame 132 can play a supporting role. Support function, so that each side of the frame 111 can maintain a stable shape.

In some embodiments, a plurality of first support frames 131 and a plurality of second support frames 132 are arranged in a criss-cross direction; the first support frames 131 can be supported between the first cover plate 112 and the second cover plate 113, The support frame 132 can connect multiple first support frames 131 in sequence.

It can be understood that the sealed cavity 101 is a negative pressure cavity, and the outer surface of the heat collector 100 bears the pressure of the external atmosphere. The first support frame 131 can support the first cover plate 112 and the second cover plate 113. To prevent the first cover plate 112 and the second cover plate 113 from being collapsed or damaged under negative pressure conditions, the second support frame 132 connects the plurality of first support frames 131 together, and the overall formation is stronger and stronger. Stable structure.

In some embodiments, the staggered arrangement of the plurality of first support frames 131 and the plurality of second support frames 132 can form a grid-like frame structure, and the frame structure as a whole covers most of the area within the sealed cavity 101, so that The first cover plate 112 and the second cover plate 113 have wider and more support positions within the projection range of the plate surface, so that each position on the plate surface of the first cover plate 112 and the second cover plate 113 is supported. The force is more balanced and not easily deflated.

For example, a plurality of first support frames 131 may be arranged parallel to each other and spaced apart from each other, and the plurality of first support frames 131 may be arranged along the width direction of the heat collector 100, and a plurality of second support frames 132 may also be spaced parallel to each other. provided, and the plurality of second supporting frames 132 may be arranged parallel to each other and spaced apart along the length direction of the heat collector 100 . In addition, the first support frame 131 and the second support frame 132 can be assembled by plugging into each other. For example, the first support frame 131 and the second support frame 132 can be arranged vertically, and the first support frame 131 can be provided with The first slot 1312 and the second slot 1322 can be provided on the second support frame 132, and the first slot 1312 on the first support frame 131 is opposite to the first slot 1312 on the second support frame 132, During assembly, the first slot 1312 and the second slot 1322 are plugged into each other, thereby improving the convenience of assembling the first support frame 131 and the second support frame 132 .

FIG. 7 is a schematic structural diagram of the first support member in the heat collector provided by the embodiment of the present application. FIG. 8 is a schematic structural diagram of the first support member in the heat collector provided by the embodiment of the present application.

Please continue to refer to Figures 2 to 8. In some embodiments, the first support frame 131 has a plurality of support portions 1311 on one side facing the first cover 112, and the heat absorbing plate 140 can be provided with a plurality of through holes 141. The plurality of support portions 1311 respectively pass through the plurality of through holes 141 and abut against the first cover 112 .

It can be understood that each first support frame 131 may have a plurality of support parts 1311, and the plurality of support parts 1311 are arranged at intervals along the length direction of the first support frame 131. The support parts on the multiple first support frames 131 1311 forms an array arrangement structure, thereby supporting the first cover plate 112 Arranged in an array, the support structure is more reliable. The through holes 141 on the corresponding heat absorbing plate 140 can also be arranged in an array, and the through holes 141 and the supporting parts 1311 are arranged in one-to-one correspondence.

In addition, the main structure of the first support frame 131 is located on the side of the heat absorbing plate 140 away from the first cover 112, and only the support portion 1311 extends to the side facing the first cover 112 to contact the first cover 112. The second supporting frame 132 can be located on the side of the heat absorbing plate 140 facing the second cover plate 113, thereby preventing the first supporting frame 131 and the second supporting frame 132 from blocking the heat absorbing surface of the heat absorbing plate 140.

For example, there may be a gap between the second support frame 132 and the heat collecting tube assembly 150, that is, the heat collecting tube assembly 150 is connected to the heat absorbing plate 140. When the heat absorbing plate 140 is supported, the heat collecting tube assembly 150 is in In a suspended state, the heat of the heat collecting tube assembly 150 is prevented from escaping due to thermal conduction.

The heat collecting tube assembly 150 may include a heat collecting tube 153. The heat collecting tube 153 may extend along the length direction of the heat collector 100 and be alternately spaced from the first supporting frame 131. The corresponding positions of the second supporting frame 132 and the heat collecting tube 153 may be The avoidance groove 1321 is provided so that the second support frame 132 can avoid the heat collecting tube 153 in the thin sealing cavity 101 to avoid contact with the heat collecting tube 153 to cause heat conduction.

For example, the avoidance groove 1321 may be located between two adjacent first support frames 131 , and the heat collecting tube 153 may be located between two adjacent two first support frames 131 along the length of the first support frames 131 Extending in the direction, the heat collecting tube 153 is opposite to the escape groove 1321, and the escape groove 1321 may be an arc-shaped groove.

It should be noted that the first support frame 131 and the second support frame 132 may be made of heat-resistant materials, such as glass fiber nylon or other plastic materials with weak thermal conductivity, which are not specifically limited in the embodiments of the present application.

Please refer to FIGS. 1 to 6 . In some embodiments, the heat collector 100 may also be provided with a buffer component 120 . The buffer component 120 includes at least one buffer member. The buffer member is disposed inside the frame 111 and along the frame. The inner edge of 111 extends. When the temperature and pressure in the sealed cavity 101 are high, the buffer member can absorb the force of the impact load through its own deformation. When the temperature and pressure in the sealed cavity 101 are low, the buffer member can return to its original shape before deformation. The state releases the force of the impact load, thereby preventing the frame 111 from being directly subjected to alternating stresses with large changes, thereby preventing the frame 111 from deforming in a long-term hot and cold shock environment, and extending the service life of the heat collector 100.

The buffer member can form a closed ring shape along the circumferential direction of the frame 111, and the buffer member covers the surface of the frame 111 facing the sealed cavity 101, so that when the temperature in the sealed cavity 101 rises and the gas expands, The buffering member can absorb the expansion stress toward the frame 111, and when the temperature decreases and the gas contracts, the buffering member can release the stress, thus playing a good buffering role.

It can be understood that the frame 111 may have a square frame structure, and the buffer member may extend along the circumference of the inner side of the frame 111. When the buffer member cooperates with the frame 111, the buffer member will also follow the shape of the frame 111 and form a square ring.

For example, the frame 111 can be formed by connecting metal profiles to ensure that the frame 111 has good structural strength. The buffering member can be made of elastic materials such as rubber, silicone, etc. The embodiment of the present application does not specify the actual material model used for the buffering member and the frame 111. Make specific limitations.

In some embodiments, there is an accommodating groove 1115 on the inside of the frame 111, and a reinforcing rib 1116 is provided at the bottom of the accommodating groove 1115. The reinforcing rib 1116 extends toward the inside of the sealed cavity 101, and the buffer is disposed in the accommodating groove 1115. The buffer member covers the outside of the reinforcing rib 1116.

It can be understood that the reinforcing ribs 1116 can be an integral structure with the frame 111. The reinforcing ribs 1116 are arranged circumferentially around the frame 111. The length of the reinforcing ribs 1116 matches the length of the frame 111, thereby improving the structural strength of the frame 111. The buffer member covers the outside of the reinforcement rib 1116. When the pressure in the sealed cavity 101 increases and the buffer member is subject to the pressure of gas expansion, the buffer member will deform in the direction of the reinforcement rib 1116. Therefore, when the buffer member is compressed, the reinforcement rib 1116 Can provide support.

It should be noted that the overall structure of the heat collector 100 is formed by the frame 111, the first panel and the second panel. When there is a negative pressure in the sealed cavity 101, the frame 111, the first panel and the second panel all bear the pressure of the sealed cavity 101. The pressure has a tendency to collapse. When the high temperature and pressure in the sealed cavity 101 is relatively large, the buffering member mainly buffers the pressure. The final stress-bearing subjects are the frame 111, the first panel and the second panel. The buffering member can lower the frame 111. The size of the pressure peak value slows down the impact.

In a possible implementation, the first cover plate 112 can be a light-transmitting plate, and the heat-absorbing plate 140 has a heat-absorbing coating on a side facing the first cover plate 112. The heat-absorbing coating can improve the heat absorption efficiency and integrate The heat pipe assembly 150 is located on the side of the heat absorbing plate 140 away from the first cover plate 112 and is in contact with the heat absorbing plate 140. The heat absorbing plate 140 can transfer heat to the heat collecting pipe assembly 150 through thermal conduction.

It can be understood that when the heat collector 100 is installed, the first cover plate 112 can be directed to the outside, that is, the first cover plate 112 faces the sun, and the first cover plate 112 has good light transmittance, for example, the first cover plate 112 can face the sun. The plate 112 may be a glass cover plate, and the plate surface of the heat absorbing plate 140 is parallel to the plate surface of the first cover plate 112, so that the heat absorbing plate 140 can be exposed to the sunlight passing through the first cover plate 112 to a greater extent, thereby The heat of the sun can be absorbed to a greater extent through the heat absorbing plate 140, and the heat can be efficiently transferred to the collector tube assembly 150.

It should be noted that the shape and area of the first cover plate 112 and the second cover plate 113 match the shape and area of the frame structure of the frame 111 , and the shape and area of the heat absorbing plate 140 also match the shape and area of the first cover plate 112 The shape and size of the plate surface match. In the thickness direction of the heat collector 100, the first cover plate 112, the heat absorbing plate 140 and the second cover plate 113 form a spaced layer structure.

Since the buffer member needs to play a buffering and protective role on the inside of the frame 111, and the heat absorbing plate 140 needs to have as large an area as possible in order to absorb the heat of the sun to a maximum extent, when the edge of the heat absorbing plate 140 extends close to the frame 111 When the inner wall of the heat absorbing plate 140 is provided with multiple buffer members, interference between the heat absorbing plate 140 and the buffer members can be avoided. This is explained below.

In a possible implementation, the buffering member may include a first buffering member 121 and a second buffering member 122. The first buffering member 121 and the second buffering member 122 are arranged along the width of the accommodating groove 1115 and abut against each other. The first buffer member 121 is located on the side of the heat absorbing plate 140 facing the first cover plate 112 . The second buffer member 122 is located on the side of the heat absorbing plate 140 facing the second cover plate 113 . The edge of the heat absorbing plate 140 extends to the first cover plate 113 . between the buffer member 121 and the second buffer member 122 .

It can be understood that the first buffer member 121 and the second buffer member 122 jointly cover the bottom of the accommodating groove 1115. When the internal pressure of the sealed cavity 101 increases, the first buffer member 121 and the second buffer member 122 can Together, they buffer the pressure toward the frame 111 .

In addition, in order to improve the ability of the buffer member to absorb alternating stresses and improve the buffering effect, the buffer member may be an elastic member, and the buffer member may be arched into the sealing cavity 101. For example, the surface of the buffer member facing the sealing cavity 101 may be oriented toward the seal. The cavity 101 has a convex arc shape.

It should be noted that the heat absorbing plate 140 can be an aluminum thin plate, and the heat collecting tube assembly 150 can be made of copper. The heat collecting tube assembly 150 is connected to the heat absorbing plate 140 . The total weight of the heat absorbing plate 140 and the heat collecting tube assembly 150 is relatively light. , and in order to prevent the heat collecting tube assembly 150 from contacting other positions in the sealed cavity 101, the heat absorbing plate 140 can be supported, that is, the heat collecting tube assembly 150 is kept in a suspended state, so that the heat of the heat absorbing plate 140 is transferred to the heat collecting tube assembly 150 Finally, the heat of the heat collecting tube assembly 150 is less likely to escape due to thermal conduction.

For example, the first cover 112 is placed upward to receive sunlight, the first buffer 121 is located on the upper side of the heat absorbing plate 140, and the second buffering member 122 is located on the lower side of the heat absorbing plate 140. The heat absorbing plate 140 can be supported by The component 130 can be carried, for example, by the first support frame 131; or, the edge of the heat absorbing plate 140 can be carried by the second buffer member 122, for example, the edge of the second buffer member 122 is provided with a flange, and the heat absorbing plate The edge of 140 can be placed on top of the flange, so that the suction The hot plate 140 can also cover the entire cross-section of the sealed cavity 101 to a greater extent, and has higher heat absorption efficiency.

Please continue to refer to Figures 2 to 6. In one possible implementation, the edge of the first cover 112 and the edge of the second cover 113 are respectively in contact with the inner walls of the opposite sides of the accommodation groove 1115; the first cover A first seal 161 is provided between the edge of the plate 112 and the inner wall of the accommodating groove 1115. The first seal 161 surrounds the frame 111 to form a closed ring. The edge of the second cover plate 113 is disposed between the inner wall of the accommodating groove 1115 There is a second sealing member 162 , and the second sealing member 162 forms a closed ring around the frame 111 .

It can be understood that under the support of the first support frame 131, the first cover 112 and the second cover 113 can be pressed against the frame 111 respectively, that is, the edge of the first cover 112 presses against the first seal. 161. The edge of the second cover 113 presses the second seal 162, thereby improving the overall sealing performance of the sealed cavity 101, maintaining the pressure and gas conditions in the sealed cavity 101, and reducing the rate of heat dissipation in the sealed cavity 101. .

For example, both the first sealing member 161 and the second sealing member 162 may be sealing rings made of rubber or other elastic materials. The shapes of the first sealing member 161 and the second sealing member match the shape of the frame 111. This application The embodiment does not specifically limit the thickness and elastic damping of the first sealing member 161 and the second sealing member 162.

Since the heat absorbed by the heat absorbing plate 140 is transferred to the heat collecting tube assembly 150, the heat collecting tube assembly 150 realizes the utilization of heat energy. The specific structure and working mode of the heat collecting tube assembly 150 will be described in detail below.

Referring to Figures 2 to 9, in a possible implementation, the heat collecting tube assembly 150 may include an inflow tube 151, a return tube 152, a connecting tube 154, a first heat collecting tube 153a and a second heat collecting tube 153b. The heat pipe 153a and the second heat collecting pipe 153b are arranged at intervals in the sealed cavity 101. The inflow pipe 151 is connected with the first heat collecting pipe 153a, the return pipe 152 is connected with the second heat collecting pipe 153b, and the connecting pipe 154 connects the first heat collecting pipe 153a with the second heat collecting pipe 153a. The two heat collecting pipes 153b are connected.

It can be understood that the fluid medium circulates in the heat collecting tube assembly 150, which can absorb heat and conduct the heat out of the heat collector 100 for use. The fluid medium can flow in from the inflow pipe 151, and the inflow pipe 151 performs the first collection. The heat pipe 153a flows along the first heat collecting pipe 153a into the connecting pipe 154, and then flows into the second heat collecting pipe 153b through the connecting pipe 154, and then flows out from the second heat collecting pipe 153b into the return pipe 152. When the fluid medium flows through the first heat collecting pipe 153a and second episode hot The heat of the heat absorbing plate 140 can be absorbed during the process of the tube 153b.

In some embodiments, there may be multiple first heat collecting tubes 153a and second heat collecting tubes 153b, and may be arranged parallel to each other and spaced apart. The flow direction of the fluid medium in the first heat collecting tube 153a and the second heat collecting tube 153b is opposite. Both the heat collecting pipe 153a and the second heat collecting pipe 153b can be copper pipes and are welded to the side of the heat absorbing plate 140 away from the first cover plate 112 .

For example, the number of the first heat collecting tubes 153a may be four, and the number of the second heat collecting tubes 153b may be two, so as to more fully absorb the heat of the heat absorbing plate 140 and to export the heated fluid medium at a more efficient speed. Thermal energy utilization.

It should be noted that the fluid medium can be water, oil or other media such as ethylene glycol, which can be selected according to specific application scenarios. For example, in areas with lower temperatures at night, ethylene glycol can be used to avoid The fluid medium is frozen. The embodiments of this application do not specifically limit the specific type of the fluid medium.

The heat collector provided by the embodiment of the present application includes a shell component, a support component, a heat absorbing plate and a heat collecting tube component. The shell component has a sealed cavity. The supporting component, the heat absorbing plate and the heat collecting tube component are all arranged in the sealed cavity. The supporting component The assembly includes a plurality of support frames, which are supported on different sides of the inner wall of the sealed cavity. The heat collecting tube assembly is connected to a heat absorbing plate, and the heat absorbing plate is supported on at least part of the supporting frame, thereby improving the structural strength to avoid the shell The components are deflated, extending the life of the collector.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope.

Claims

A heat collector, characterized in that it includes a shell assembly, a support assembly, a heat absorption plate and a heat collection tube assembly, the shell assembly has a sealed cavity, the support assembly, the heat absorption plate and the heat collection tube The components are all arranged in the sealed cavity;

The support assembly includes a plurality of support frames, and the plurality of support frames are supported on different sides of the inner wall of the sealed cavity. The heat collecting tube assembly is connected to the heat absorption plate, and the heat absorption plate is supported on at least part of on the support frame.
The heat collector according to claim 1, wherein the sealed chamber is a vacuum chamber.
The heat collector according to claim 2, wherein the housing assembly includes a frame, a first cover plate, and a second cover plate, and the first cover plate and the second cover plate are located on the frame. The opposite sides of the frame, the first cover plate and the second cover plate together form the sealed cavity;

The plurality of support frames includes a first support frame and a second support frame. The first support frame extends from the first side of the frame to the second side of the frame. The second support frame extends from the first side of the frame to the second side of the frame. A third side of the frame extends to a fourth side of the frame.
The heat collector according to claim 3, characterized in that there are multiple first support frames and multiple second support frames, and the plurality of first support frames are arranged in parallel and spaced apart from each other. The second support frames are arranged in parallel and spaced apart from each other; the first support frames are supported between the first cover plate and the second cover plate, and the second support frames connect a plurality of the first support frames Connect in sequence.
The heat collector according to claim 3, characterized in that the first support frame is provided with a first slot, the second support frame is provided with a second slot, and the first support frame and The second support frames are arranged perpendicularly to each other, and the first slot and the second slot are plugged into each other.
The heat collector according to any one of claims 3 to 5, characterized in that the first cover plate is a light-transmitting plate, and the side of the heat-absorbing plate facing the first cover plate has a heat-absorbing coating. layer, the heat collecting tube assembly is located on the side of the heat absorbing plate away from the first cover plate and is connected to the heat absorbing plate. There is a gap between the heat collecting tube assembly and the support frame.
The heat collector according to claim 6, wherein the first support frame The side facing the first cover plate has a plurality of support portions, the heat absorbing plate is provided with a plurality of through holes, and the plurality of support portions pass through the plurality of through holes and the first cover respectively. Board abutment.
The heat collector according to claim 7, wherein the second support frame is located on the side of the heat absorption plate facing the second cover plate, and the second support frame faces the heat absorption plate. There is an escape groove on one side, and the escape groove is located between the two adjacent first supports. The heat collecting tube assembly includes a heat collecting tube, and the heat collecting tube is located between the two adjacent first supports. Between the frames and extending along the length direction of the first support frame, the heat collecting tube penetrates the escape groove, and there is a gap between the heat collecting tube and the groove wall of the escape groove.
The heat collector according to claim 8, wherein the heat collecting tube assembly further includes an inflow tube, a return tube, and a connecting tube, and the heat collecting tube includes a first heat collecting tube and a second heat collecting tube, and the first heat collecting tube The heat collecting tube and the second heat collecting tube are arranged at intervals in the sealed cavity, the inflow tube is connected to the first heat collecting tube, the return tube is connected to the second heat collecting tube, and the connecting tube connects The first heat collecting tube is connected with the second heat collecting tube.
The heat collector according to any one of claims 3 to 5, further comprising a buffer, a first seal and a second seal, the buffer being disposed on the frame, and the buffer The member extends along the inner side of the frame and forms a closed ring; the first sealing member is provided between the edge of the first cover plate and the frame, and the first sealing member surrounds the frame to form a closed ring, The second sealing member is disposed between the edge of the second cover plate and the frame, and the second sealing member forms a closed ring around the frame.