Device system for eliminating snow from roof

Abstract

A roof snow removal system according to the present invention comprises a blower member for supplying air, a heating member for heating the air supplied through the blower member, a piping member for transporting the air supplied through the blower member, a roof member disposed at the top of a building to block rain and snow, an expansion member disposed on the outer surface of the roof member and expanded by the air supplied from the blower member, and a plurality of air injection nozzles disposed on the roof member for spraying the air supplied from the blower member. According to the present invention, snow accumulating on the roof can be automatically detected and effectively removed. In addition, even with a simple configuration, the efficiency of melting snow can be increased, and snow can be removed energy-efficiently by allowing it to flow down smoothly due to its own weight.

Description

Technology Field

[0001] The present invention relates to a snow removal system, and more specifically, to a roof snow removal system configured to automatically detect snow accumulating on a roof and effectively remove it. Background Technology

[0002] Recently, due to global warming caused by ozone and carbon dioxide, abnormal weather conditions are occurring frequently not only domestically but also globally.

[0003] Due to the abnormal climate mentioned above, changes in average seasonal temperatures and sometimes disasters caused by heavy rain or snow are occurring.

[0004] In particular, if accumulated snow is not properly removed during heavy snowfall in winter, the roof may deform or even collapse due to the weight of the snow.

[0005] However, when the roof of a livestock barn or factory collapses, it can result in massive secondary damage beyond just the roof, such as the freezing of livestock or damage to equipment, and may even cause accidents involving injuries.

[0006] To prevent accidents caused by heavy snowfall as described above, snow accumulating on roofs must be properly removed; however, the reality is that it is very difficult to take timely action regarding heavy snowfall that occurs at night.

[0007] In addition, having a person climb onto a roof to clear snow while it is snowing can be a difficult and dangerous task due to the slipperiness caused by the snow.

[0008] To solve this problem, a conventional method of melting snow by installing heating wires on the roof has been used, but it has the disadvantage of being difficult to ensure the long-term durability of the heating wires in an outdoor environment.

[0009] Furthermore, the method of melting snow using heat generated from heating wires is not desirable in terms of energy efficiency, and there is a limitation in that the snow melts locally only in the areas where the heating wires are placed.

[0010] However, placing heating wires very densely on the roof requires high construction costs and a long time, and there is a problem that it could potentially cause fire or short circuits. The problem to be solved

[0011] The objective of the present invention is to provide a roof snow removal system configured to automatically detect snow accumulating on a roof and effectively remove it.

[0012] Another objective of the present invention is to provide a roof snow removal system configured to increase snow melting efficiency even with a simple configuration.

[0013] Another objective of the present invention is to provide a roof snow removal system configured to allow snow to flow down smoothly by its own weight. means of solving the problem

[0014] A roof snow removal system according to the present invention for achieving the above objective comprises a blower member for supplying air, a heating member for heating the air supplied through the blower member, a piping member for transporting the air supplied through the blower member, a roof member positioned at the top of a building to block rain and snow, an expansion member positioned on the outer surface of the roof member and expanded by the air supplied from the blower member, and a plurality of air injection nozzles positioned on the roof member to spray the air supplied from the blower member.

[0015] Preferably, the piping member may be configured to have an air flow diversion valve installed to selectively supply air to the expansion member or the air injection nozzle.

[0016] In addition, a weight sensing sensor is installed on the roof member, and when a preset weight is detected through the weight sensing sensor, the blower member and the heating member may be configured to be driven.

[0017] In addition, the expansion member is formed from a synthetic resin material, and lattice-shaped concave portions may be formed on its surface.

[0018] Preferably, a metal heat transfer member may be coupled to the outer end of the air injection nozzle.

[0019] In addition, a space dividing section for dividing the space vertically may be formed inside the expansion member.

[0020] In addition, an internal pressure discharge section may be formed in the space-dividing section.

[0021] In addition, a plurality of pressure discharge portions may be formed in the expansion member.

[0022] Preferably, the pressure relief sections are formed between the air injection nozzles.

[0023] Meanwhile, the roof member may have heat transfer member receiving recesses formed therein to accommodate the heat transfer member.

[0024] Here, the heat transfer member can be formed by twisting a plurality of metal wires.

[0025] Alternatively, the above-mentioned heat transfer member may be composed of a pipe in the shape of a hollow cylinder, and ventilation openings may be formed in the pipe.

[0026] In addition, grid-shaped indentations may be formed on the surface of the pipe.

[0027] Preferably, a plurality of air flow concave portions may be formed across the heat transfer member receiving concave portion.

[0028] In addition, an insulating member is attached to the surface of the expansion member that contacts the roof member, and grid-shaped concave portions may be formed on the bottom surface of the insulating member.

[0029] Preferably, vibration-generating protrusions may be formed inside the expansion member.

[0030] In addition, an artificial intelligence module may be linked to the weight sensing sensor, so that the blower and heating members are driven by the artificial intelligence module. Effects of the invention

[0031] According to the present invention, snow accumulating on the roof can be automatically detected and effectively removed.

[0032] In addition, the efficiency of melting snow can be increased even with a simple configuration.

[0033] In addition, snow can be removed energy-efficiently by allowing it to flow down smoothly due to its own weight. Brief explanation of the drawing

[0034] The attached drawings below are intended to facilitate understanding of the technical concept of the present invention in conjunction with the detailed description of the invention; therefore, the present invention should not be interpreted as being limited to the matters illustrated in the drawings below. FIG. 1 is a configuration diagram of a roof snow removal system according to one embodiment of the present invention, and FIG. 2 is a perspective view of an expansion member included in the system in an inflated state, and FIG. 3 is an internal cross-sectional view of the expansion member, and FIG. 4 is a cross-sectional view of a pressure relief section included in the above system, and FIG. 5 is a perspective view of an insulating member disposed on the bottom surface of the expansion member, and FIG. 6 is a configuration diagram of a system according to another embodiment of the present invention, and FIG. 7 is a perspective view of a heat transfer member included in the above system, and FIG. 8 is a perspective view of a heat transfer member according to another embodiment of the present invention, and FIG. 9 is a perspective view of a roof snow removal system according to another embodiment of the present invention, and FIG. 10 is a perspective view of a roof snow removal system according to another embodiment of the present invention. Specific details for implementing the invention

[0035] Hereinafter, the configuration of the present invention will be described in detail with reference to the attached drawings.

[0036] Prior to this, the terms used in this specification and claims shall not be interpreted as being limited to their dictionary meanings; rather, based on the principle that the inventor may appropriately define the concepts of the terms to best describe their invention, they shall be interpreted in a meaning and concept consistent with the technical spirit of the invention.

[0037] Therefore, it should be understood that the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0038] FIG. 1 is a configuration diagram of a roof snow removal device system according to one embodiment of the present invention; FIG. 2 is a perspective view of an expansion member included in the system in an inflated state; FIG. 3 is an internal cross-sectional view of the expansion member; FIG. 4 is a cross-sectional view of a pressure discharge part included in the system; FIG. 5 is a perspective view of an insulating member disposed on the bottom surface of the expansion member; FIG. 6 is a configuration diagram of a system according to another embodiment of the present invention; FIG. 7 is a perspective view of a heat transfer member included in the system; FIG. 8 is a perspective view of a heat transfer member according to yet another embodiment of the present invention; FIG. 9 is a perspective view of a roof snow removal device system according to yet another embodiment of the present invention; and FIG. 10 is a perspective view of a roof snow removal device system according to yet another embodiment of the present invention.

[0040] Referring to FIG. 1, the roof snow removal system according to the present invention comprises a blower member (10) for supplying air, a heating member (20) for heating the air supplied through the blower member (10), a piping member (30) for transporting the air supplied through the blower member (10), a roof member (40) placed at the top of a building to block rain and snow, an expansion member (50) placed on the outer surface of the roof member (40) and expanded by the air supplied from the blower member (10), and a plurality of air injection nozzles (70) placed on the roof member (40) to spray the air supplied from the blower member (10).

[0041] The above blower member (10) is configured to generate wind and supply air to the heating member (20).

[0042] The above blower member (10) is configured to include a blower fan and a motor, and can be configured to generate wind by rotating the blower fan with the motor using supplied electrical energy.

[0043] The air supplied through the blower member (10) is heated to a high temperature by the heating member (20).

[0044] The heating element (20) may be configured to include a heating wire or a heating tube for generating heat by the supplied electric energy.

[0045] Thus, high-temperature hot air can be supplied to the piping member (30) through the blower member (10) and the heating member (20).

[0046] The above piping member (30) may be composed of a pipe for transporting hot air and may be formed as a metal or synthetic resin pipe.

[0047] An insulating material not shown may be placed on the outer surface of the above-mentioned pipe member (30), and the pipe member (30) may be configured to increase its thermal insulation properties.

[0048] High-temperature hot air can be supplied to the expansion member (50) and the air injection nozzle (70) through the above piping member (30).

[0049] The above expansion member (50) and air injection nozzle (70) can be installed on a roof member (40) positioned at the top of the building to block rain and snow.

[0050] The above expansion member (50) is formed in a tube-like shape using synthetic resin material and is placed on the outer surface of the roof member (40).

[0051] And, the expansion member (50) is configured to expand by air supplied from the blower member (10).

[0052] In addition, the air injection nozzle (70) is also positioned on the roof member (40) and configured to inject air supplied from the blower member (10) onto the surface of the roof member (40).

[0053] The above air injection nozzle (70) can be formed in a roughly "L" shape including a pipe connection part (71) and a nozzle part (72).

[0054] Preferably, the pipe connection part (71) may be positioned inside the roof member (40), and only the nozzle part (72) may be positioned to protrude from the surface of the roof member (40).

[0055] The expansion member (50) is formed in a roughly horizontally elongated rectangular shape and configured so that the air injection nozzle (70) is covered by the expansion member (50).

[0056] Preferably, the air injection nozzle (70) may be positioned approximately near the center of the width W of the expansion member (50) and installed in multiple numbers along the length (L) direction of the expansion member (50).

[0057] Accordingly, the air injection nozzle (70) can be sufficiently covered by the expansion member (50), thereby preventing the air injection nozzle (70) from being exposed to the outside.

[0058] Accordingly, it is configured to prevent foreign substances such as dust from entering the air injection nozzle (70) when the blower member (10) is not operating.

[0059] Meanwhile, a weight sensing sensor (90) is installed on the roof member (40), and when a preset weight is detected through the weight sensing sensor, the blower member (10) and the heating member (20) are driven to supply hot air to the expansion member (50) and the air injection nozzle (70).

[0060] The above preset weight may be a weight that can be applied to the weight sensing sensor (90) when snow is piled up to a predetermined height, such as 1 cm to 2 cm.

[0061] As described above, the expansion member (50) is configured to expand as shown in FIG. 2 by means of hot air supplied to the expansion member (50).

[0062] Thus, as the expansion member (50) expands, it prevents the snow piled on it from clumping together and hardening, and can form fine gaps between the snow.

[0063] And, the snow in contact with the surface of the expansion member (50) is melted by the hot air supplied to the expansion member (50).

[0064] As the snow in contact with the surface of the expansion member (50) melts and becomes liquid, the snow located on it can slide along the surface of the expansion member (50) due to its own weight.

[0065] However, since the roof member (40) is installed at an angle and the expansion member (50) placed on top of it expands, its surface also has an angle, so as the snow in contact with the surface of the expansion member (50) melts and becomes liquid, the snow located on it can flow along the surface of the expansion member (50).

[0066] Therefore, by supplying hot air to the expansion member (50) to expand it, a significant amount of snow located on the expansion member (50) can be moved downward.

[0067] And, as described above, hot air is injected through the air injection nozzle (70) into the eyes moving downward.

[0068] At this time, the lowest snow among the snow moved to the lower part of the air injection nozzle (70) that comes into contact with the roof member (40) is melted into a liquid state by the hot air sprayed from the air injection nozzle (70), so that the snow located above it slides downward due to its own weight.

[0069] By the above action, even if not all the snow accumulated on the roof member (40) is completely removed, a significant amount of snow is removed, thereby preventing the roof member (40) from collapsing due to the weight of the snow.

[0070] Preferably, the piping member (30) may be configured to have an air flow diversion valve (80), for example, composed of a solenoid valve, installed to selectively supply hot air to the expansion member (50) or the air injection nozzle (70).

[0071] Thus, the process of expanding the expansion member (50) with hot air and the process of spraying hot air through the air injection nozzle (70) may be configured to be performed alternately or simultaneously.

[0072] Preferably, the expansion member (50) is formed from a synthetic resin material such as urethane or synthetic rubber.

[0073] In addition, in another embodiment of the present invention, as shown in FIG. 2, grid-shaped concave portions (52) may be formed on the upper surface of the expansion member (50).

[0074] Physically, the efficiency of heat transfer is proportional to the size of the heat transfer surface area.

[0075] Accordingly, as described above, grid-shaped concave portions (52) are formed on the upper surface of the expansion member (50) that comes into contact with the eye to increase the overall surface area, thereby increasing the heat transfer efficiency from the hot air flowing through the blower member (10) and the heating member (20).

[0076] Thus, the efficiency of melting snow can be increased through the aforementioned hot air.

[0077] Also, due to the height difference between the concave portion (52) and the remaining portion on the upper surface of the expansion member (50), adjacent snow particles may be somewhat relieved from sticking together and clumping.

[0078] Additionally, by allowing air that has received heat from the hot air to flow through the concave portion (52), the snow accumulating on the upper surface of the expansion member (50) can be melted more effectively.

[0079] And, as shown in FIG. 3, a space dividing part (54) for dividing the space vertically may be formed inside the expansion member (50).

[0080] In addition, an internal pressure discharge section (56) may be formed in the space division section (54).

[0081] The above internal pressure discharge section (56) can be formed, for example, by being attached at predetermined intervals along the direction perpendicular to the paper surface in FIG. 3, while the left part (544) and the right part (546) of the space division section (54) are arranged to overlap.

[0082] Accordingly, when no pressure is applied, the left part (544) and the right part (546) are arranged to overlap each other, and when the air pressure increases, air is configured to be discharged through the overlap between the left part (544) and the right part (546).

[0083] Thus, the hot air generated by the blower member (10) and the heating member (20) is first supplied to the upper space (51) inside the expansion member (50) so that the upper space (51) is expanded.

[0084] And, when the pressure in the upper space (51) reaches a predetermined pressure, hot air is configured to flow into the lower space (53) through the internal pressure discharge part (56).

[0085] Thus, by supplying hot air to the upper space (51) as quickly as possible to come into contact with the snow, it is configured to quickly melt the snow in contact with the upper surface of the expansion member (50) before a large amount of snow accumulates.

[0086] Then, hot air is supplied to the lower space (53) so that the expansion member (50) is fully expanded, thereby separating the snow particles in contact with the upper surface of the expansion member (50) from each other.

[0087] In addition, a plurality of pressure discharge portions (58) may be formed at the lower portion (left portion in FIG. 3) of the expansion member (50).

[0088] The pressure discharge unit (58) is configured to discharge hot air to the outside from the lower space (53) of the expansion member (50).

[0089] That is, the pressure discharge unit (58) is configured to discharge hot air to the outside when the pressure in the lower space (53) reaches a predetermined pressure.

[0090] As illustrated in FIG. 4, the pressure discharge unit (58) may include a body part (582) in the shape of a hollow cylinder and a movable part (584) arranged to operate inside the body part (582).

[0091] Here, in the lower part of the body part (582), that is, the left end part in FIG. 4, a space with a trapezoidal cross-sectional shape (585, a space in the shape of a truncated cone overall) is formed, and the corresponding lower part of the movable part (584) is also formed with a trapezoidal cross-sectional shape (in the shape of a truncated cone overall).

[0092] And, the above-mentioned movable part (584) is positioned to always close the lower portion of the body part (582) by means of a spring (586).

[0093] In this state, when the internal pressure of the body part (582) increases due to hot air, the movable part (584) may be configured to move to the left in FIG. 4 to discharge the hot air to the outside.

[0094] And, when no pressure is applied inside the body part (582), the movable part (584) can be configured to move to the right in FIG. 4 and return to its original position, which closes the lower part of the body part (582).

[0095] Preferably, the pressure discharge portions (58) in the expansion member (50) are formed to be positioned between the air injection nozzles (70).

[0096] Thus, by discharging hot air through the air injection nozzle (70) and the pressure discharge part (58), it is configured to spray hot air over the entire area along the length (L) direction of the expansion member (50).

[0097] As described above, by spraying hot air through the air injection nozzle (70) and the pressure discharge part (58), the snow near the surface of the roof member (40) melts and flows downward, and the snow accumulated on it can also be moved downward by the water flowing on the surface of the roof member (40).

[0098] Preferably, vibration generating protrusions (57) may be formed inside the expansion member (50).

[0099] Thus, it is configured so that during the process of supplying hot air into the expansion member (50), it collides with the vibration generating projection (57) to generate sufficient vibration.

[0100] It is configured so that the snow on the expansion member (50) can flow more smoothly due to the vibration as described above.

[0101] In addition, an insulating member (56) may be attached to the surface of the expansion member (50) that contacts the roof member (40).

[0102] The above-mentioned insulating member (56) may be formed in the shape of a rectangular plate using a synthetic resin material such as urethane or synthetic rubber, for example, and may be placed on the bottom surface of the expansion member (50).

[0103] The heat transfer from the hot air inside the expansion member (50) to the roof member (40) can be reduced through the insulation member (56).

[0104] In addition, to reduce the contact area between the insulating member (56) and the roof member (40) and to reduce the degree of heat transfer to the roof member (40), grid-shaped concave portions (562) may be formed on the bottom surface of the insulating member (56) that contacts the roof member (40), as shown in FIG. 5.

[0105] Thus, the heat transferred to the roof member (40) through the insulation member (56) can be reduced, and the air that has received heat from the hot air can flow through the grid-shaped concave portion (562) to help melt the snow.

[0106] And, as illustrated in FIGS. 6 and 7, in another embodiment of the present invention, a metal heat transfer member (73, 75) may be coupled to a nozzle part (72) formed at the outer end of the air injection nozzle (70).

[0107] The heat transfer member (73) can be formed by twisting a plurality of metal wires (732), and is configured so that sufficient space is formed between the plurality of metal wires (732).

[0108] And, preferably, the heat transfer member (73) is formed and arranged with a length that can sufficiently protrude downward from the lower end of the expansion member (50).

[0109] Thus, the nozzle part (72) is covered by the expansion member (50), and only the heat transfer member (73) can be exposed to the outside of the expansion member (50).

[0110] By doing so, it is possible to prevent foreign substances such as dust from entering the nozzle part (72) and to prevent external objects from colliding with the nozzle part (72) and causing malfunction or damage.

[0111] As described above, with the heat transfer member (73) exposed to the outside from the lower part of the expansion member (50), hot air sprayed from the nozzle part (72) is transferred to the heat transfer member (73), so that the snow near the heat transfer member (73) can be melted.

[0112] Thus, the phenomenon in which the hot air sprayed from the nozzle part (72) is blocked by snow accumulating near the nozzle part (72) and cannot flow downward is prevented, and a passage for the flow of hot air can be formed in the part where the heat transfer member (73) is placed in the snow.

[0113] Thus, by continuously flowing hot air through the above passage, the snow around the passage is configured to gradually melt and flow into a water state.

[0114] In another embodiment of the present invention, as shown in FIG. 7, the heat transfer member (75) may be composed of a pipe in the shape of a hollow cylinder.

[0115] Preferably, the pipe may be formed of copper material and configured to have high heat transfer efficiency.

[0116] The heat transfer member (75), formed as a hollow cylindrical pipe, is also positioned to protrude sufficiently downward from the lower end of the expansion member (50).

[0117] And, ventilation openings (76) can be formed in the above-mentioned hollow cylindrical pipe.

[0118] Thus, heat from the hot air sprayed from the nozzle part (72) is transferred to the eye by conduction from the surface of the hollow cylindrical pipe, and the hot air may also flow directly to the eye through the ventilation opening (76).

[0119] In addition, in another embodiment of the present invention, as shown in FIG. 8, grid-shaped concave portions (78) can be formed on the surface of the hollow cylindrical pipe to increase heat transfer efficiency.

[0120] Meanwhile, in another embodiment of the present invention, as shown in FIG. 9, heat transfer member receiving recesses (43) for receiving the heat transfer member (73, 75) may be formed in the roof member (40) in the direction of arrangement of the heat transfer member (73, 75).

[0121] And, the nozzle part (72) of the air injection nozzle (70) and the heat transfer member (73, 75) are configured to be placed within the heat transfer member receiving concave part (43).

[0122] Thus, the hot air flowing through the nozzle part (72) and the heat transfer member (73, 75) can be made to flow intensively along the heat transfer member receiving concave part (43).

[0123] With this configuration, a flow path for hot air can be formed along the heat transfer member receiving concave portion (43) in the snow accumulated on the roof member (40).

[0124] And, it is configured to gradually increase the range of snow melting from the heat transfer member receiving concave portion (43).

[0125] By doing so, the accumulated snow is allowed to collapse into the heat transfer member receiving concave portion (43), thereby preventing excessive pressure from being applied to the roof member (40).

[0126] In addition, by placing the nozzle part (72) and the heat transfer member (73, 75) within the heat transfer member receiving concave part (43), the inflow and attachment of foreign substances can be mitigated and collision with external objects can be prevented.

[0127] In addition, in another embodiment of the present invention, as shown in FIG. 10, a plurality of air flow concave portions (45) may be formed across the heat transfer member receiving concave portions (43).

[0128] The above air flow concave portions (45) are formed in multiple numbers in a direction crossing between a pair of heat transfer member receiving concave portions (43).

[0129] Thus, the hot air flowing into the heat transfer member receiving recess (43) flows into the air flow recess (45), so that the hot air can flow into the entire area of ​​the roof member (40).

[0130] Accordingly, it is configured to prevent excessively high local pressure from being applied to some areas of the roof member (40).

[0131] Meanwhile, an unillustrated control unit is connected to the weight sensing sensor (90), and an artificial intelligence module (not illustrated) can be linked to the control unit.

[0132] Thus, the artificial intelligence module may be configured to determine whether the blower member (10) and the heating member (20) are operating based on the weight detected by the weight sensing sensor (90).

[0133] In the attached drawing, although the expansion member (50) and the heat transfer member (73, 75) are each arranged in two rows, they are not limited thereto and may be arranged in various numbers of rows.

[0134] In addition, the expansion members (50) may be arranged in multiple rows.

[0136] For the above, the terms used in the embodiments of the present invention have the same meaning as generally understood by those skilled in the art to which the present invention pertains.

[0137] Although the present invention has been described by limited embodiments and drawings, the above embodiments are intended to explain, not to limit, the technical concept of the present invention, and therefore the technical concept of the present invention is not limited to these, and various modifications and variations may be made by a person skilled in the art within the scope of the technical concept of the present invention and the equivalent scope of the following claims.

[0138] Accordingly, the scope of protection of the present invention shall be interpreted by the claims, and all technical ideas within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0139] In addition, within the scope of the purpose of the present invention, one or more of the components may be optionally combined.

[0140] The terms "included" or "composed" mentioned above mean that the relevant component may be included, and should be interpreted as meaning that other components may additionally be included. Explanation of the symbols

[0141] 10: Blower component 20: Heating element 30: Piping member 40: Roof member 50: Expansion member 70: Air injection nozzle 80: Air flow diversion valve

Claims

Claim 1 A roof snow removal system characterized by comprising: a blower member for supplying air; a heating member for heating the air supplied through the blower member; a piping member for transporting the air supplied through the blower member; a roof member positioned at the top of a building to block rain and snow; an expansion member positioned on the outer surface of the roof member and expanded by air supplied from the blower member; and a plurality of air injection nozzles positioned on the roof member to spray air supplied from the blower member, wherein an air flow conversion valve is installed in the piping member to selectively supply air to the expansion member or the air injection nozzles. Claim 2 A roof snow removal system according to claim 1, characterized in that a weight sensing sensor is installed on the roof member, and when a preset weight is detected through the weight sensing sensor, the blower member and the heating member are configured to be driven. Claim 3 A roof snow removal system according to claim 2, wherein the expansion member is formed of a synthetic resin material and has grid-shaped concave portions formed on its surface. Claim 4 A roof snow removal system according to claim 1, characterized in that a metal heat transfer member is coupled to the outer end of the air injection nozzle. Claim 5 A roof snow removal system according to claim 3, characterized in that a space dividing part is formed inside the expansion member to divide the space vertically. Claim 6 A roof snow removal system according to claim 5, characterized in that an internal pressure discharge section is formed in the space-dividing section. Claim 7 A roof snow removal system according to claim 6, characterized in that a plurality of pressure discharge portions are formed in the expansion member. Claim 8 A roof snow removal system according to claim 7, characterized in that the pressure discharge sections are formed between the air injection nozzles. Claim 9 A roof snow removal system according to claim 4, characterized in that the roof member has heat transfer member receiving recesses formed therein to accommodate the heat transfer member. Claim 10 A roof snow removal system according to claim 9, wherein the heat transfer member is formed by twisting a plurality of metal wires. Claim 11 A roof snow removal system according to claim 9, wherein the heat transfer member is composed of a pipe in the shape of a hollow cylinder, and ventilation openings are formed in the pipe. Claim 12 A roof snow removal system according to claim 11, characterized in that grid-shaped concave portions are formed on the surface of the pipe. Claim 13 A roof snow removal system according to claim 12, characterized in that a plurality of air flow concave portions are formed across the heat transfer member receiving concave portion. Claim 14 A roof snow removal system according to claim 8, characterized in that an insulating member is coupled to the surface of the expansion member that contacts the roof member, and grid-shaped concave portions are formed on the bottom surface of the insulating member. Claim 15 A roof snow removal system according to claim 7, characterized in that vibration-generating protrusions are formed inside the expansion member. Claim 16 A roof snow removal system according to claim 2, characterized in that an artificial intelligence module is linked to the weight sensing sensor, and the blower member and heating member are configured to be driven by the artificial intelligence module. Claim 17 delete

Images