Anti-freezing photovoltaic photo-thermal assembly

Abstract

The utility model discloses an anti-freezing photovoltaic photo-thermal assembly, which comprises a photovoltaic panel, a heat absorption device, heat pipes and a bottom insulation board, an inner container with a special-shaped cross section is arranged above the back surface of the photovoltaic panel, through holes which are uniformly distributed are formed in the bottom end of the inner container, a plurality of heat pipes which are in one-to-one correspondence with the through holes are arranged below the inner container, and the heat pipes are connected with the bottom insulation board. The condensation end of the heat pipe extends into the inner container through the through hole, a silica gel ring is arranged between the inner wall of the through hole and the periphery of the condensation end of the heat pipe, the evaporation end of the heat pipe is connected with the photovoltaic panel through a heat absorption device, a water inlet and a water outlet are formed in the two ends of the inner container respectively, and the inner container and the heat pipe are arranged on the inner side of the bottom heat preservation plate. The photovoltaic photo-thermal assembly is simple in structure, free of frost crack, capable of enabling equipment to pass through the winter safely, low in production cost and convenient to popularize in a large range.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel structures, in particular to a freeze-resistant photovoltaic thermal component. Background Art

[0002] The existing photovoltaic thermal assembly structural layers are photovoltaic panels, thermal conductive adhesive, thermal conductive plate, flow channel, insulation layer and bottom plate from top to bottom. The flow channel is welded to the thermal conductive plate, and the thermal conductive plate is glued to the back of the photovoltaic panel through thermal conductive adhesive. The flow channel is a metal flow channel, usually a copper tube, aluminum tube or stainless steel tube. This type of flow channel itself does not have antifreeze ability, and antifreeze liquid needs to be run in the flow channel to avoid freezing and cracking. However, this photovoltaic thermal panel assembly that needs to run antifreeze liquid has a complex structure and a high production cost.

[0003] Therefore, it is necessary to provide a freeze-resistant photovoltaic thermal component to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a frost-resistant photovoltaic thermal component in view of the deficiencies in the prior art, which has a simple structure, will not freeze and crack, and has a low production cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A freeze-resistant photovoltaic thermal component comprises a photovoltaic panel, a heat absorption device, a heat pipe, and a bottom insulation board. An inner tank with a special-shaped cross section is provided above the back of the photovoltaic panel, and evenly arranged through holes are opened at the bottom of the inner tank. A plurality of heat pipes corresponding to the through holes are provided below the inner tank. The condensation end of the heat pipe extends to the interior of the inner tank through the through hole, and a silicone ring is provided between the inner wall of the through hole and the outer periphery of the condensation end of the heat pipe. The evaporation end of the heat pipe is connected to the photovoltaic panel through the heat absorption device. A water inlet and a water outlet are provided at both ends of the inner tank, and the inner tank and the heat pipe are arranged on the inner side of the bottom insulation board.

[0007] Preferably, the cross-section of the inner tank is a flat box shape, and the flat box shape cross-section includes a long side and a short side. The inner tank includes two long sides and two short sides. The two long sides are respectively close to the bottom insulation board and the photovoltaic panel. The short side at the bottom is provided with a through hole for inserting the condensation end of the heat pipe.

[0008] Preferably, the length of the long side is greater than twice the length of the short side.

[0009] Preferably, the cross-section of the inner tank is triangular, the triangular cross-section includes two long waists and a bottom side, the inner tank includes two long waist sides and a bottom side, and the bottom side of the bottom end is provided with a through hole for inserting the condensing end of the heat pipe.

[0010] Preferably, the two long waist sides and the bottom edge side are surrounded by a bottom insulation board.

[0011] Preferably, the length of the long waist is greater than the length of the bottom edge.

[0012] Preferably, the heat absorbing device is a heat absorbing plate, the back side of the heat absorbing plate is fixed to the evaporating end of the heat pipe by welding, and the heat absorbing plate is fixed to the photovoltaic panel by gluing with thermal conductive adhesive.

[0013] Preferably, the heat absorption device is an Ω-shaped pressure strip, which includes two symmetrically arranged pressure edges and a fixed sleeve with a circular cross-section. The fixed sleeve is arranged on the outer periphery of the evaporation end of the heat pipe, and the inner wall of the fixed sleeve is fixed to the outer periphery of the heat pipe by bonding with thermal conductive glue, and the pressure edge is fixed to the photovoltaic panel by bonding with thermal conductive glue.

[0014] Preferably, the inner liner is a stainless steel inner liner or a stainless steel spring plate inner liner.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] When using this photovoltaic thermal component, there is no need to run antifreeze in the system. When the water inside the inner tank freezes and expands, since the inner tank is made of stainless steel spring plates, the long sides of the flat box-section inner tank or the long waist sides of the triangular section inner tank will deform corresponding to the ice expansion. When the ice melts into water, the deformed surface returns to its original state, avoiding the rupture of the inner tank due to ice expansion when no antifreeze is used inside the photovoltaic thermal component. This product has a simple structure and low production cost, and is suitable for large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of Example 1 of the utility model;

[0018] Figure 2 It is a side view of Example 1 of the utility model;

[0019] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 It is a front view of Example 2 of the utility model;

[0021] Figure 5 It is a side view of Example 2 of the utility model;

[0022] Figure 6 yes Figure 5 The enlarged schematic diagram of point B in the middle;

[0023] Among them, 1-photovoltaic panel, 2-heat absorbing plate, 3-heat pipe, 301-heat pipe condensation end, 302-heat pipe evaporation end, 4-silicone ring, 5-thermal conductive glue, 6-inner tank, 601-water inlet, 602-water outlet, 7-bottom insulation board DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0025] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixed connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0026] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0027] Embodiment 1:

[0028] like Figures 1 to 3 As shown, it is the first embodiment of the utility model, a frost-resistant photovoltaic thermal assembly, including a photovoltaic panel 1, a heat absorption device, a heat pipe 3, and a bottom insulation board 7. An inner liner 6 with a flat box-shaped cross section is arranged above the back of the photovoltaic panel. The inner liner is a stainless steel spring plate inner liner. A water inlet 601 and a water outlet 602 are respectively arranged at both ends of the inner liner. The flat box-shaped cross section includes a long side and a short side. The length of the long side is greater than twice the length of the short side. The inner liner includes two long sides and two short sides. The two long sides are respectively close to the bottom insulation board. The panel and photovoltaic panel have a through hole for inserting the condensing end 301 of the heat pipe on the short side of the bottom, and the through holes are evenly arranged on the short side. Eight heat pipes corresponding to the through holes are installed under the inner tank, and the condensing end of the heat pipe extends to the inside of the inner tank through the through hole. A silicone ring 4 is provided between the inner wall of the through hole and the outer periphery of the condensing end of the heat pipe. The inner tank and the heat pipe are installed on the inner side of the bottom insulation board, and the evaporating end 302 of the heat pipe is connected to the photovoltaic panel through a heat absorbing device, which includes two forms: a heat absorbing plate and an Ω-shaped strip.

[0029] When the heat absorbing plate 2 is used, the back side of the heat absorbing plate is fixed to the evaporation end of the heat pipe by welding, and the heat absorbing plate is fixed to the photovoltaic panel by gluing with a thermal conductive adhesive 5 .

[0030] When an Ω-shaped pressure strip is used, the Ω-shaped pressure strip includes two symmetrically arranged pressure edges and a fixed sleeve with a circular cross-section. The fixed sleeve is arranged on the outer periphery of the evaporation end of the heat pipe. The inner wall of the fixed sleeve and the outer periphery of the heat pipe are fixed by bonding with thermal conductive glue, and the pressure edge and the photovoltaic panel are fixed by bonding with thermal conductive glue.

[0031] The heat absorbing device of this embodiment adopts a heat absorbing plate.

[0032] The principle and use of this antifreeze photovoltaic thermal component: when the system is running, the heat generated by the photovoltaic panel is transferred to the heat absorbing plate through the thermal conductive glue, the heat absorbing plate heats the heat pipe, and the heat of the heat pipe is transferred to the inner tank through the condensation end, so that the water temperature in the inner tank increases, and the hot water in the inner tank is sent to the hot water storage tank and circulates back and forth. When encountering extremely cold weather, the water stored in the inner tank expands due to freezing, and the two long sides of the inner tank are deformed corresponding to the freezing expansion. When the ice melts into water, the long sides return to their original state, so that the equipment can safely survive the winter.

[0033] Embodiment 2:

[0034] like Figures 4 to 6 As shown, it is the second embodiment of the utility model. The difference between this embodiment and embodiment 1 is that the antifreeze type photovoltaic thermal component adopts an inner tank with a triangular cross-section. The triangular cross-section includes two long waists and a bottom side. The length of any one of the long waists is greater than the length of the bottom side. The inner tank includes two long waist sides and a bottom side. The bottom side of the bottom end is provided with a through hole for inserting the condensation end of the heat pipe. The two long waist sides and the bottom side are surrounded by a bottom insulation board.

[0035] The principle and use of this antifreeze photovoltaic thermal component: when the system is running, the heat generated by the photovoltaic panel is transferred to the heat absorbing plate through the thermal conductive glue, the heat absorbing plate heats the heat pipe, and the heat of the heat pipe is transferred to the inner tank through the condensation end, so that the water temperature in the inner tank increases, and the hot water in the inner tank is sent to the hot water storage tank and circulates back and forth. When encountering extremely cold weather, the water stored in the inner tank expands due to freezing, and the two long waist sides of the inner tank undergo deformation corresponding to the expansion and freezing. When the ice melts into water, the long waist sides return to their original state, allowing the equipment to safely survive the winter.

[0036] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A freeze-resistant photovoltaic thermal assembly, comprising a photovoltaic panel, a heat absorbing device, a heat pipe, and a bottom insulation board, characterized in that: An inner tank with an irregular cross-section is provided above the back side of the photovoltaic panel, and evenly arranged through holes are opened at the bottom of the inner tank. A plurality of heat pipes corresponding to the through holes are provided below the inner tank, and the condensation end of the heat pipe extends to the interior of the inner tank through the through hole. A silicone ring is provided between the inner wall of the through hole and the outer periphery of the condensation end of the heat pipe. The evaporation end of the heat pipe is connected to the photovoltaic panel through a heat absorption device, and a water inlet and a water outlet are provided at both ends of the inner tank, respectively. The inner tank and the heat pipe are arranged on the inner side of the bottom insulation board.

2. The antifreeze photovoltaic thermal assembly according to claim 1, characterized in that: The cross-section of the inner tank is a flat box shape, which includes a long side and a short side. The inner tank includes two long sides and two short sides. The two long sides are respectively close to the bottom insulation board and the photovoltaic panel. The short side at the bottom is provided with a through hole for inserting the condensation end of the heat pipe.

3. The antifreeze photovoltaic thermal assembly according to claim 2, characterized in that: The length of the long side is greater than twice the length of the short side.

4. The antifreeze photovoltaic thermal assembly according to claim 1, characterized in that: The cross section of the inner tank is triangular, the triangular cross section includes two long waists and a bottom side, the inner tank includes two long waist sides and a bottom side, and the bottom side of the bottom end is provided with a through hole for inserting the condensing end of the heat pipe.

5. The antifreeze photovoltaic thermal assembly according to claim 4, characterized in that: The two long waist sides and the bottom edge side are all surrounded by the bottom insulation board.

6. The antifreeze photovoltaic thermal assembly according to claim 5, characterized in that: The length of the long waist is greater than the length of the bottom edge.

7. The antifreeze photovoltaic thermal assembly according to claim 1, characterized in that: The heat absorbing device is a heat absorbing plate, the back side of the heat absorbing plate is fixed to the evaporation end of the heat pipe by welding, and the heat absorbing plate is fixed to the photovoltaic panel by gluing with heat conductive adhesive.

8. The antifreeze photovoltaic thermal assembly according to claim 1, characterized in that: The heat absorption device is an Ω-shaped pressure strip, which includes two symmetrically arranged pressure edges and a fixed sleeve with a circular cross-section. The fixed sleeve is arranged on the outer periphery of the evaporation end of the heat pipe, and the inner wall of the fixed sleeve is fixed to the outer periphery of the heat pipe by thermal conductive glue, and the pressure edge is fixed to the photovoltaic panel by thermal conductive glue.

9. The antifreeze photovoltaic thermal assembly according to claim 1, characterized in that: The inner liner is a stainless steel inner liner or a stainless steel spring plate inner liner.

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