Greenhouse top snow melting structure and greenhouse

Abstract

The invention provides a greenhouse top snow melting structure and a greenhouse, the greenhouse top snow melting structure comprises a first substrate, a second substrate, a heating film and an electrode, and the first substrate and the second substrate are arranged at an interval and form a vacuum space; the heating film is arranged on the end face, located in the vacuum space, of the first substrate and used for heating the first substrate when powered on. The electrodes are arranged on two sides of the heating film, are in contact with the heating film, are electrically connected with the power supply, and are used for electrifying the heating film by utilizing the power supply; the light transmittance of the first substrate and the light transmittance of the second substrate are larger than 40%. The first base plate is heated through the heating film, accumulated snow is melted, heat transfer is blocked through the vacuum space between the first base plate and the second base plate, and the situation that heat generated by heating and snow melting of the heating film destroys air temperature balance in the greenhouse is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of greenhouses, and in particular to a snow melting structure on the top of a greenhouse and a greenhouse. Background Art

[0002] The main reasons why greenhouses need snow melting include the following:

[0003] Prevent greenhouse collapse: In extreme weather conditions, heavy snow accumulation can cause the greenhouse to bear too much weight. If it is not cleaned up in time, it may cause the greenhouse to collapse, causing huge economic losses to growers.

[0004] Ensure crop growth: Snow will cover the top of the greenhouse, affecting the light entering the greenhouse, resulting in insufficient light for crops and hindering their growth. Snow melting can ensure that crops get enough light to ensure their normal growth and development.

[0005] Improve production efficiency: Timely snow melting can reduce the temperature drop inside the greenhouse caused by snow accumulation, maintain a suitable growth environment, and thus increase crop yield and quality.

[0006] Therefore, in the prior art, an external heat source is usually used to melt snow. However, the external heat source will firstly destroy the greenhouse structure. Secondly, the external heat source will heat the greenhouse temperature during the snow melting process, thus destroying the temperature balance of the greenhouse. Summary of the invention

[0007] The embodiments of the present invention provide a greenhouse top snow melting structure and a greenhouse to solve one or more technical problems encountered in the prior art.

[0008] In a first aspect, an embodiment of the present invention provides a snow melting structure on the top of a greenhouse, comprising:

[0009] a first substrate;

[0010] a second substrate, wherein the first substrate and the second substrate are spaced apart from each other, and the first substrate and the second substrate are connected at four edges so that the space between the first substrate and the second substrate forms a vacuum space;

[0011] A heating film, the heating film is arranged on the end surface of the first substrate located in the vacuum space, the heating film is a conductive heating film formed on the end surface of the first substrate by vacuum coating of semiconductor oxide, and the heating film is used to heat the first substrate when power is turned on;

[0012] Electrodes, the electrodes are arranged on both sides of the heating film, the electrodes are arranged in contact with the heating film, the electrodes are electrically connected to a power source, and the electrodes are used to energize the heating film using the power source;

[0013] Wherein, the light transmittance of the first substrate and the second substrate is greater than 40%.

[0014] In a preferred embodiment, at least one supporting column is disposed in the interval space between the first substrate and the second substrate, and two ends of the supporting column are respectively connected to the first substrate and the second substrate, and the supporting column is used to support the first substrate and the second substrate.

[0015] In a preferred embodiment, the heating film is a conductive film formed by vacuum coating of one of nickel-chromium alloy, silicon carbide, ZnOxS(1-x), InOxS(1-x), SnxIn(1-x)O, ZnxMg(1-x)O and ZnxAl(1-x)O.

[0016] In a preferred embodiment, the thickness of the heating film is 10 nm to 2000 nm.

[0017] In a preferred embodiment, the snow melting structure on the top of the greenhouse also includes a pressure sensing device, which covers the surface of the first substrate. The pressure sensing device is used to sense the pressure change on the first substrate. The pressure sensing device is electrically connected to the power supply. When the pressure sensing device senses that the pressure of the first substrate becomes larger, the pressure sensing device is used to control the power supply to start powering on.

[0018] In a second aspect, an embodiment of the present invention provides a greenhouse, comprising:

[0019] Shed body;

[0020] A plurality of supporting structures, wherein the supporting structures are arranged in the shed at intervals;

[0021] A plastic film, wherein the plastic film is covered on the supporting structure to form a greenhouse;

[0022] The greenhouse top snow-melting structure described in the above embodiment is fixedly connected to the adjacent supporting structure, and the end face of the first substrate of the greenhouse top snow-melting structure is arranged close to the plastic film or the end face of the first substrate is in contact with the plastic film, and the greenhouse top snow-melting structure is used to melt the snow on the plastic film between the adjacent supporting structures.

[0023] In a preferred embodiment, the support structure is a support frame formed by a heat-conducting material, the snow-melting structure on the top of the greenhouse is in contact with and connected to the support structure, the snow-melting structure on the top of the greenhouse is used to heat the support structure with the generated heat, and the support structure is used to transfer the heat from the heated part of the snow-melting structure on the top of the greenhouse to the entire structure.

[0024] One of the above technical solutions has the following advantages or beneficial effects: the first substrate is heated by the heating film to melt the accumulated snow, and the vacuum space between the first substrate and the second substrate blocks the heat transfer, thereby preventing the heat generated by the heating film to melt the snow and destroy the temperature balance in the greenhouse.

[0025] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present invention and should not be regarded as limiting the scope of the present invention.

[0027] Figure 1 A schematic cross-sectional view of a snow melting structure on the top of a greenhouse according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In a first aspect, an embodiment of the present invention provides a snow melting structure on the top of a greenhouse, see Figure 1 As shown, the snow melting structure on the top of the greenhouse includes a first substrate 100 , a second substrate 200 , a heating film 300 and an electrode 400 .

[0030] The first substrate 100 and the second substrate 200 are spaced apart from each other, and the first substrate 100 and the second substrate 200 are connected at four edges so that the space between the first substrate 100 and the second substrate 200 forms a vacuum space.

[0031] The heating film 300 is arranged on the end surface of the first substrate 100 located in the vacuum space. The heating film 300 is a conductive heating film formed on the end surface of the first substrate 100 by vacuum coating of semiconductor oxide. The heating film 300 is used to heat the first substrate 100 when power is turned on.

[0032] The electrodes 400 are disposed on both sides of the heating film 300 , the electrodes 400 are disposed in contact with the heating film 300 , the electrodes 400 are electrically connected to a power source, and the electrodes 400 are used to energize the heating film 300 using the power source.

[0033] The light transmittance of the first substrate 100 and the second substrate 200 is greater than 40%.

[0034] In this embodiment, the heating film 300 is used to heat the first substrate 100 to melt the accumulated snow. The vacuum space between the first substrate 100 and the second substrate 200 blocks the heat transfer, thereby preventing the heat generated by the heating film 300 to melt the snow from destroying the temperature balance in the greenhouse.

[0035] In a specific embodiment, see Figure 1 As shown, at least one supporting column 500 is disposed in the interval space between the first substrate 100 and the second substrate 200 , and both ends of the supporting column 500 are respectively connected to the first substrate 100 and the second substrate 200 , and the supporting column 500 is used to support the first substrate 100 and the second substrate 200 .

[0036] In a specific embodiment, the heating film 300 is a conductive film formed by vacuum coating of one of nickel-chromium alloy, silicon carbide, ZnOxS(1-x), InOxS(1-x), SnxIn(1-x)O, ZnxMg(1-x)O and ZnxAl(1-x)O.

[0037] In a specific embodiment, the thickness of the heating film 300 is 10 nm to 2000 nm.

[0038] In a specific embodiment, see Figure 1 As shown, the snow melting structure on the top of the greenhouse also includes a pressure sensing device 600, which covers the surface of the first substrate 100. The pressure sensing device 600 is used to sense the pressure change on the first substrate 100. The pressure sensing device 600 is electrically connected to the power supply. When the pressure sensing device 600 senses that the pressure of the first substrate 100 becomes larger, the pressure sensing device 600 is used to control the power supply to start powering on.

[0039] In a second aspect, an embodiment of the present invention provides a greenhouse, including a greenhouse body, a plurality of supporting structures, a plastic film and the snow melting structure on the top of the greenhouse in the above-mentioned embodiment.

[0040] The supporting structures are arranged in the shed body at intervals.

[0041] The plastic film is covered on the supporting structure to form a greenhouse.

[0042] The snow-melting structure on the top of the greenhouse is fixedly connected to the adjacent supporting structure, and the end surface of the first substrate of the snow-melting structure on the top of the greenhouse is arranged close to the plastic film or the end surface of the first substrate is in contact with the plastic film. The snow-melting structure on the top of the greenhouse is used to melt the snow on the plastic film between the adjacent supporting structures.

[0043] In a specific embodiment, the support structure is a support frame formed by a heat-conducting material, the snow-melting structure on the top of the greenhouse is in contact with and connected to the support structure, the snow-melting structure on the top of the greenhouse is used to heat the support structure with the generated heat, and the support structure is used to transfer the heat of the heated part of the snow-melting structure on the top of the greenhouse to the entire structure.

[0044] The greenhouse of this embodiment utilizes the heating film to heat the first substrate to melt the accumulated snow, and the vacuum space between the first substrate and the second substrate blocks the heat transfer to prevent the heat generated by the heating film heating up the snow and melting it from destroying the temperature balance in the greenhouse.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A snow melting structure on the top of a greenhouse, characterized in that: include: a first substrate; a second substrate, wherein the first substrate and the second substrate are spaced apart from each other, and the first substrate and the second substrate are connected at four edges so that the space between the first substrate and the second substrate forms a vacuum space; A heating film, the heating film is arranged on the end surface of the first substrate located in the vacuum space, the heating film is a conductive heating film formed on the end surface of the first substrate by vacuum coating of semiconductor oxide, and the heating film is used to heat the first substrate when power is turned on; Electrodes, the electrodes are arranged on both sides of the heating film, the electrodes are arranged in contact with the heating film, the electrodes are electrically connected to a power source, and the electrodes are used to energize the heating film using the power source; Wherein, the light transmittance of the first substrate and the second substrate is greater than 40%.

2. The greenhouse top snow melting structure according to claim 1, characterized in that: At least one supporting column is disposed in the interval space between the first substrate and the second substrate, two ends of the supporting column are respectively connected to the first substrate and the second substrate, and the supporting column is used to support the first substrate and the second substrate.

3. The greenhouse top snow melting structure according to claim 1, characterized in that: The heating film is a conductive film formed by vacuum coating of one of nickel-chromium alloy, silicon carbide, ZnOxS(1-x), InOxS(1-x), SnxIn(1-x)O, ZnxMg(1-x)O and ZnxAl(1-x)O.

4. The greenhouse top snow melting structure according to claim 1, characterized in that: The thickness of the heating film is 10nm to 2000nm.

5. The greenhouse top snow melting structure according to claim 1, characterized in that: It also includes a pressure sensing device, which covers the surface of the first substrate. The pressure sensing device is used to sense pressure changes on the first substrate. The pressure sensing device is electrically connected to the power supply. When the pressure sensing device senses that the pressure of the first substrate increases, the pressure sensing device is used to control the power supply to start powering on.

6. A greenhouse, characterized in that: include: Shed body; A plurality of supporting structures, wherein the supporting structures are arranged in the shed at intervals; A plastic film, wherein the plastic film is covered on the supporting structure to form a greenhouse; The greenhouse top snow-melting structure as claimed in any one of claims 1 to 5, wherein the greenhouse top snow-melting structure is fixedly contacted and connected with the adjacent supporting structure, and the end face of the first substrate of the greenhouse top snow-melting structure is arranged close to the plastic film or the end face of the first substrate is in contact with the plastic film, and the greenhouse top snow-melting structure is used to melt the snow on the plastic film between the adjacent supporting structures.

7. The greenhouse according to claim 6, characterized in that: The supporting structure is a supporting frame formed by heat-conducting materials, the snow-melting structure on the top of the greenhouse is in contact with and connected to the supporting structure, the snow-melting structure on the top of the greenhouse is used to heat the supporting structure with the generated heat, and the supporting structure is used to transfer the heat from the heated part of the snow-melting structure on the top of the greenhouse to the entire structure.

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