A building-integrated BIPV photovoltaic structure

Abstract

The present invention discloses a building-integrated photovoltaic structure, comprising a plurality of strip photovoltaic panels distributed in parallel arrays, wherein the ends of each strip photovoltaic panel are fixedly connected to a building body through a structural member; each strip photovoltaic panel is sleeved with a light-transmitting tube along its length direction, and sunlight can be irradiated onto each strip photovoltaic panel through each light-transmitting tube, and light-leaking and air-conducting lanes are formed between two adjacent light-transmitting tubes; and switching between light-transmitting, light-impermeable, air-impermeable and other states can be realized.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic buildings. Background Art

[0002] The existing building-integrated BIPV photovoltaic structure can generally only meet one state, and the states such as light-transmitting, opaque, breathable, and opaque cannot be switched freely; however, in different external environments, such as high radiation in summer, in order to avoid indoor sunlight exposure, the building-integrated BIPV photovoltaic structure needs to be in a fully shading state; and in winter and autumn when the temperature is relatively low, in order to improve the indoor lighting effect, the building-integrated BIPV photovoltaic structure needs to be in a light-transmitting state; at the same time, when there is a need for ventilation indoors, the building-integrated BIPV photovoltaic structure needs to be in a ventilation state; based on the above external environment, this solution can achieve selective switching of the above three states. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a building-integrated BIPV photovoltaic structure that can achieve switching between light-transmitting, light-impermeable, air-permeable, and airtight states.

[0004] Technical solution: To achieve the above-mentioned purpose, a building-integrated photovoltaic structure of the present invention comprises a plurality of strip photovoltaic panels distributed in parallel arrays, and the ends of each strip photovoltaic panel are fixedly connected to the building body through structural members; each strip photovoltaic panel is provided with a light-transmitting tube along the length direction, and sunlight can shine on each strip photovoltaic panel through each light-transmitting tube, and light-leaking and air-conducting tunnels are formed between two adjacent light-transmitting tubes.

[0005] Furthermore, a switchable linkage belt is provided under each light-leaking and air-guiding tunnel, and the linkage belt can be switched into three states: sealed and light-transmissive, sealed and light-impermeable, and air-permeable and light-transmissive.

[0006] Furthermore, a plurality of light-transmitting tubes, a plurality of strip-shaped photovoltaic panels and a plurality of linked fabric strips together constitute a light-transmitting photovoltaic building skin.

[0007] Furthermore, from the axial viewing angle, the strip-shaped photovoltaic panel is in the extension direction of the diameter of the light-transmitting tube.

[0008] Furthermore, each light-transmitting tube can rotate along its own axis.

[0009] Further, any two adjacent light-transmitting tubes among the plurality of light-transmitting tubes are respectively recorded as a left light-transmitting tube and a right light-transmitting tube; a first roller and a second roller are respectively arranged on both sides of the lower part of the light-leaking and air-guiding tunnel between the left light-transmitting tube and the right light-transmitting tube; the linkage belt comprises a first belt section, a second belt section, a third belt section and a fourth belt section which are continuous from left to right;

[0010] The first roller rolls the connection between the first section of the cloth tape and the second section of the cloth tape on the lower right surface of the left light-transmitting tube, the first section of the cloth tape is attached to the lower right surface of the left light-transmitting tube in an arc shape, and the clockwise end of the first section of the cloth tape is fixedly connected to the first cloth fixing connecting strip at the lower end of the left light-transmitting tube;

[0011] The second roller rolls the connection between the second and third sections of the cloth tape onto the lower left surface of the right light-transmitting tube, the third and fourth sections of the cloth tape are attached to the lower left surface of the right light-transmitting tube in an arc shape, and the fourth section of the cloth tape is fixedly connected to the second cloth fixing connecting strip at the lower end of the left light-transmitting tube in a counterclockwise direction;

[0012] The second section of cloth tape is horizontally located directly below the light leakage and air guiding channel; from the linkage relationship of the linkage cloth tapes, it can be seen that when the left light-transmitting tube and the right light-transmitting tube rotate clockwise along their own axes synchronously, the first section of cloth tape will gradually wind up and adhere to the lower right side of the left light-transmitting tube, and the third section of cloth tape and the fourth section of cloth tape will successively reach directly below the light leakage and air guiding channel.

[0013] Furthermore, the second section of the fabric tape is airtight and light-proof, the third section of the fabric tape is airtight and light-proof, and the fourth section of the fabric tape is airtight and light-proof.

[0014] Furthermore, the leftmost and rightmost ones of the plurality of light-transmitting tubes are respectively recorded as the left light-transmitting tube and the right light-transmitting tube; and a rotation driving device is also included which can drive the left light-transmitting tube and the right light-transmitting tube to rotate along their own axes respectively.

[0015] Beneficial effects: The present invention can realize the following three states: a fully light-blocking and air-isolated state of the light-transmitting photovoltaic building skin, a light-transmitting and air-isolated state of the light-transmitting photovoltaic building skin, and a light-transmitting and air-permeable state of the light-transmitting photovoltaic building skin, and these three states can be switched freely. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is the overall side view of the light-transmitting photovoltaic building skin;

[0017] Attached Figure 2 This is a first-person perspective diagram of the light-transmitting photovoltaic building skin;

[0018] Attached Figure 3 This is a second-angle diagram of the light-transmitting photovoltaic building skin;

[0019] Attached Figure 4 For attachment Figure 1 An enlarged schematic diagram of two partially adjacent light-transmitting tubes;

[0020] Attached Figure 5 This is a schematic diagram of the local structure of the end of the light-transmitting photovoltaic building skin;

[0021] Attached Figure 6Schematic diagram of disassembly of strip photovoltaic panels. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] As attached Figures 1 to 6 A building-integrated BIPV photovoltaic structure is shown in FIG. Figure 1 , 2 , 3 include a number of strip photovoltaic panels 2 distributed in parallel arrays, and the ends of each strip photovoltaic panel 2 are fixedly connected to the building body through a structural member 9; each strip photovoltaic panel 2 is sleeved with a light-transmitting tube 1 along the length direction, and the light-transmitting tube can be made of tempered glass or transparent organic glass. Sunlight can shine on each strip photovoltaic panel 2 through each light-transmitting tube 1, and a light-leaking air-conducting channel 20 is formed between two adjacent light-transmitting tubes 1. In order to improve the heat dissipation effect of the strip photovoltaic panel 2, an axial-flow heat dissipation fan can be provided at the end of each light-transmitting tube 1.

[0024] A switchable linkage belt is provided below each light-leaking air-guiding laneway 20. The linkage belt can be switched into three states: sealed and light-transmissive, sealed and light-impermeable, and air-permeable and light-transmissive. The switching of these three states is described in detail later.

[0025] A plurality of light-transmitting tubes 1, a plurality of strip-shaped photovoltaic panels 2 and a plurality of linked cloth strips together constitute a light-transmitting photovoltaic building skin 21, which can be used as a light-transmitting dome or a light-transmitting curtain wall; in order to achieve the maximum light-receiving area, from the axial perspective, the strip-shaped photovoltaic panels 2 are in the diameter extension direction of the light-transmitting tube 1.

[0026] A gap is maintained between the inner wall of the light-transmitting tube 1 and the edge contour of the strip-shaped photovoltaic panel 2 inside; Figure 5 and 6 As shown, the inner wall of the end of the light-transmitting tube 1 is rotatably mounted outside the structural tube 10 through a bearing 11, so that each light-transmitting tube 1 can rotate along its own axis, and the structural tube 10 is fixedly connected to the building body.

[0027] like Figure 4As shown, any two adjacent light-transmitting tubes 1 among the plurality of light-transmitting tubes 1 are respectively recorded as the left light-transmitting tube 1x and the right light-transmitting tube 1y; the first roller 3 and the second roller 5 are respectively arranged on both sides of the lower part of the light-leaking air-guiding tunnel 20 between the left light-transmitting tube 1x and the right light-transmitting tube 1y; the linkage cloth belt comprises a first cloth belt section 4a, a second cloth belt section 4b, a third cloth belt section 4c and a fourth cloth belt section 4d which are continuous from left to right; the first roller 3 rolls the connection between the first cloth belt section 4a and the second cloth belt section 4b on the right lower side surface of the left light-transmitting tube 1x, the first cloth belt section 4a is attached to the right lower side surface of the left light-transmitting tube 1x in an arc shape, and the clockwise end of the first cloth belt section 4a is fixedly connected to the first cloth fixing connecting strip 6 at the lower end of the left light-transmitting tube 1x; the The second roller 5 rolls the connection between the second section of cloth tape 4b and the third section of cloth tape 4c onto the lower left surface of the right light-transmitting tube 1y, the third section of cloth tape 4c and the fourth section of cloth tape 4d are attached to the lower left surface of the right light-transmitting tube 1y in an arc shape, and the counterclockwise end of the fourth section of cloth tape 4d is fixedly connected to the second cloth fixing connecting strip 7 at the lower end of the left light-transmitting tube 1x; the second section of cloth tape 4b is horizontally located directly below the light-leakage and air-guiding channel 20; from the linkage relationship of the linkage tapes, it can be seen that when the left light-transmitting tube 1x and the right light-transmitting tube 1y rotate synchronously clockwise along their own axes, the first section of cloth tape 4a will gradually wind and attach to the lower right side of the left light-transmitting tube 1x, and the third section of cloth tape 4c and the fourth section of cloth tape 4d will successively reach directly below the light-leakage and air-guiding channel 20.

[0028] In this embodiment, the second section of cloth tape 4b is an airtight and light-proof cloth tape, specifically a black opaque polyvinyl fluoride cloth tape, the third section of cloth tape 4c is an airtight and light-proof cloth tape, specifically a white or transparent polyvinyl fluoride cloth tape, and the fourth section of cloth tape 4d is a breathable and light-proof cloth tape, specifically a white or transparent polyvinyl fluoride cloth tape with hollow mesh holes evenly distributed thereon, thereby achieving the purpose of light permeability and air permeability.

[0029] like Figure 1 The leftmost and rightmost ones of the plurality of light-transmitting tubes 1 are respectively denoted as the left light-transmitting tube 1a and the right light-transmitting tube 1b; the light-transmitting tubes 1 also include a rotation driving device such as an electric motor, which can respectively drive the left light-transmitting tube 1a and the right light-transmitting tube 1b to rotate along their own axes.

[0030] Working principle: The first state: the fully light-blocking and air-isolating state of the light-transmitting photovoltaic building skin 21:

[0031] In this state, each second section of the cloth tape 4b is horizontally located directly below the light leakage air guide channel 20. Figure 1As shown, outdoor sunlight is irradiated on each strip photovoltaic panel 2 through each light-transmitting tube 1, thereby achieving continuous occurrence. At the same time, the sunlight passing through the light-leaking air-guiding tunnel 20 between each two adjacent light-transmitting tubes 1 is blocked by the opaque second section of cloth tape 4b, thereby achieving a full light-blocking effect, preventing sunlight from directly irradiating the interior of the building; at the same time, since the second section of cloth tape 4b is also made of airtight material, the outdoor air cannot reach the interior under the isolation of the second section of cloth tape 4b;

[0032] The second state: the light-transmitting photovoltaic building skin 21 is light-transmitting and air-isolating:

[0033] On the basis of the "first state", the left end light-transmitting cylinder 1a is driven to rotate slowly clockwise. Since any two adjacent light-transmitting cylinders 1 are interconnected by linkage belts, when the left end light-transmitting cylinder 1a rotates slowly clockwise, all the light-transmitting cylinders 1 will also rotate synchronously clockwise under the linkage of each linkage belt until the third section of the belt 4c of each linkage belt reaches the bottom of the light-leaking air-guiding tunnel 20 and stops; at this time, the "second state" is officially entered; in this state, each third section of the belt 4c is horizontally located directly below the light-leaking air-guiding tunnel 20, and the outdoor sunlight shines on each strip photovoltaic panel 2 through each light-transmitting cylinder 1, thereby achieving continuous occurrence. At the same time, the sunlight passing through the light-leaking air-guiding tunnel 20 between each adjacent light-transmitting cylinder 1 is emitted into the room through the third section of the belt 4c below, thereby achieving a light-transmitting effect, thereby realizing indoor lighting of the building; at the same time, since the third section of the belt 4c is made of an airtight material, the outdoor air cannot reach the room under the isolation of the third section of the belt 4c;

[0034] The third state: the light-transmitting photovoltaic building skin 21 is both light-transmitting and breathable:

[0035] On the basis of the "second state", the left end light-transmitting tube 1a is driven to rotate slowly clockwise. Since any two adjacent light-transmitting tubes 1 are interconnected by linkage belts, when the left end light-transmitting tube 1a rotates slowly clockwise, all the light-transmitting tubes 1 will also rotate synchronously clockwise under the linkage of each linkage belt until the fourth section 4d of each linkage belt reaches the bottom of the light-leakage air-guiding tunnel 20 and stops; at this time, the "third state" is officially entered; in this state, each fourth section 4d of the belt is horizontally located under the bottom of the light-leakage air-guiding tunnel 20, and the outdoor sunlight shines on each strip photovoltaic panel 2 through each light-transmitting tube 1, thereby achieving continuous occurrence. At the same time, the sunlight passing through the light-leakage air-guiding tunnel 20 between each adjacent light-transmitting tube 1 is emitted into the room through the fourth section 4d of the belt below, thereby achieving a light-transmitting effect, thereby realizing indoor lighting of the building; at the same time, since the third section 4c of the belt is made of breathable material, the outdoor air is exchanged with the indoor gas under the breathable effect of the fourth section 4d of the belt.

[0036] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A building-integrated BIPV photovoltaic structure, characterized by: It comprises a plurality of strip-shaped photovoltaic panels (2) distributed in parallel arrays, the ends of each strip-shaped photovoltaic panel (2) being fixedly connected to a building body via a structural member (9); each strip-shaped photovoltaic panel (2) is provided with a light-transmitting tube (1) along its length, and sunlight can pass through each light-transmitting tube (1) to irradiate each strip-shaped photovoltaic panel (2), and a light-leaking air-conducting tunnel (20) is formed between two adjacent light-transmitting tubes (1); A switchable linkage cloth belt is arranged below each light-leaking air-guiding laneway (20), and the linkage cloth belt can be switched into three states: sealed and light-transmissive, sealed and light-impermeable, and air-permeable and light-transmissive; A plurality of light-transmitting tubes (1), a plurality of strip-shaped photovoltaic panels (2) and a plurality of linked fabric strips together form a light-transmitting photovoltaic building skin (21); From the axial viewing angle, the strip-shaped photovoltaic panel (2) is in the diameter extension direction of the light-transmitting cylinder (1); Each light-transmitting tube (1) can rotate along its own axis; Any two adjacent light-transmitting tubes (1) among the plurality of light-transmitting tubes (1) are respectively recorded as a left light-transmitting tube (1x) and a right light-transmitting tube (1y); a first roller (3) and a second roller (5) are respectively arranged on both sides of the lower part of the light-leaking air-guiding tunnel (20) between the left light-transmitting tube (1x) and the right light-transmitting tube (1y); the linkage cloth belt comprises a first cloth belt section (4a), a second cloth belt section (4b), a third cloth belt section (4c) and a fourth cloth belt section (4d) which are continuous from left to right; The first roller (3) rolls the connection between the first section of cloth tape (4a) and the second section of cloth tape (4b) onto the right lower surface of the left light-transmitting tube (1x), and the first section of cloth tape (4a) is attached to the right lower surface of the left light-transmitting tube (1x) in an arc shape, and the clockwise end of the first section of cloth tape (4a) is fixedly connected to the first cloth fixing connecting strip (6) at the lower end of the left light-transmitting tube (1x); The second roller (5) rolls the connection between the second section of the cloth tape (4b) and the third section of the cloth tape (4c) onto the lower left surface of the right light-transmitting tube (1y); the third section of the cloth tape (4c) and the fourth section of the cloth tape (4d) are attached to the lower left surface of the right light-transmitting tube (1y) in an arc shape; the counterclockwise end of the fourth section of the cloth tape (4d) is fixedly connected to the second cloth fixing connecting strip (7) at the lower end of the left light-transmitting tube (1x); The second section of the cloth belt (4b) is horizontally located directly below the light leakage and air guiding tunnel (20); from the linkage relationship of the linkage cloth belts, it can be seen that when the left light-transmitting cylinder (1x) and the right light-transmitting cylinder (1y) rotate clockwise along their own axes synchronously, the first section of the cloth belt (4a) will gradually be wound and attached to the lower right side of the left light-transmitting cylinder (1x), and the third section of the cloth belt (4c) and the fourth section of the cloth belt (4d) will successively reach directly below the light leakage and air guiding tunnel (20); The second section of the cloth tape (4b) is an air-impermeable and light-impermeable cloth tape, the third section of the cloth tape (4c) is an air-impermeable and light-permeable cloth tape, and the fourth section of the cloth tape (4d) is an air-permeable and light-permeable cloth tape.

2. A building-integrated BIPV photovoltaic structure according to claim 1, characterized in that: The leftmost and rightmost ones of the plurality of light-transmitting tubes (1) are respectively denoted as the left light-transmitting tube (1a) and the right light-transmitting tube (1b); and also include a rotation driving device capable of driving the left light-transmitting tube (1a) and the right light-transmitting tube (1b) to rotate along their own axes.

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