Balcony railing high-efficiency solar water heater

Abstract

The invention relates to the technical field of solar water heaters, in particular to a high-efficiency solar water heater for a balcony railing. Comprising a water storage tank and a heat collector, the water storage tank is fixedly arranged on the upper portion of a balcony side wall, the heat collector is arranged at a balcony window, the heat collector comprises a frame structure, multiple heat collection pipes, a first water pipe and a heat reflection mechanism, the multiple heat collection pipes are transversely arranged in the frame structure at intervals, and the first water pipe communicates with the multiple heat collection pipes; the heat reflecting mechanism comprises a reflecting plate, a light intensity sensor and a driving mechanism, the reflecting plate is rotationally arranged on the frame structure, and the driving mechanism is used for driving the reflecting plate to rotate according to information of the light intensity sensor and reflecting sunlight to the heat collecting pipe. The balcony side wall and the balcony window are used for loading the water storage device and the heat collector, the safety problem caused by overlarge balcony load is avoided, meanwhile, lighting is prevented from being affected, the light intensity sensor driving mechanism is matched with light intensity sensor information, the illuminated angle of the reflecting plate is adjusted in real time, the heat efficiency is improved, and the heating effect of the heat collecting pipe is improved.

Description

Technical Field

[0001] The invention relates to the technical field of solar water heaters, in particular to a high-efficiency solar water heater for balcony railings. Background Art

[0002] The use of solar energy is becoming increasingly popular, and now thousands of households in China have installed solar water heaters. In order to better receive sunlight, solar water heaters include water storage tanks and collectors. Among them, the existing collectors are basically installed on the roof. However, if the structure of some roofs is not conducive to the installation of collectors, or the roof area is limited, it is impossible to install more solar water heaters.

[0003] In patent CN201210184805.7 - an integral balcony fence with a solar water heater, the solar water heater is combined with the balcony fence, saving space for placing the solar water heater; the retaining edge and positioning parts of the main fence body clamp and fix the flat-plate collector on both sides. This structure is simple and firm, and easy to disassemble and assemble; the flat-plate collector is set at an angle to better absorb solar energy.

[0004] When the solar water heater is combined with the fence, the water tank temperature of the solar water heater is relatively high. When the water tank insulation effect is not good, it is easy to cause burns. At the same time, the water tank of the solar water heater (i.e. the water storage tank) is placed on the balcony fence. On the one hand, it will affect the aesthetics of the balcony fence. On the other hand, it will cause the fence to bear a large load, posing a safety risk. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-efficiency solar water heater for balcony railings, which uses the balcony side walls and balcony windows to load water storage tanks and collectors, thereby avoiding safety problems caused by excessive load on the balcony and at the same time avoiding affecting lighting. The light intensity sensor driving mechanism cooperates with the light intensity sensor information to adjust the illumination angle of the reflector in real time, increase thermal efficiency, and improve the heating effect of the heat collecting tube.

[0006] In response to the above technical problems, the technical solution provided by the present invention is a balcony railing high-efficiency solar water heater, comprising a water tank and a heat collector that are interconnected, the water tank being fixedly mounted on the balcony side wall, the heat collector being a railing-type heat collector arranged at the balcony window, the railing-type heat collector comprising a frame structure, a heat collecting tube, a first water pipe and a heat reflecting mechanism, a plurality of the heat collecting tubes being arranged at intervals along the horizontal direction inside the frame structure, the first water pipe connecting the plurality of heat collecting tubes, the heat reflecting mechanism comprising a reflecting plate, a light intensity sensor and a driving mechanism, a reflecting plate being provided on the side of each heat collecting tube facing the room, the reflecting plate being rotatably mounted on the frame structure, and its rotation axis being collinear with the axis of the heat collecting tube, the driving mechanism being used to drive the reflecting plate to rotate according to the information of the light intensity sensor so as to reflect sunlight to the heat collecting tube.

[0007] Furthermore, the frame structure is a rectangular frame structure surrounded by an upper crossbeam, a lower crossbeam and a vertical support beam. The first water pipe is arranged on the upper crossbeam, the upper end of the heat collecting pipe is sealed and connected to the first water pipe, and the lower end of the heat collecting pipe is fixed on the lower crossbeam.

[0008] Furthermore, the driving mechanism includes a driving gear and a driving motor, the driving gear corresponds to the reflecting plate one by one, and the reflecting plate is fixedly connected to the corresponding driving gear.

[0009] Furthermore, the driving mechanism also includes a driving rack, the length of the driving rack extends in the transverse direction, and the driving rack is slidably arranged in the transverse direction on the lower crossbeam, and each of the driving gears is engaged with the driving rack for transmission.

[0010] Furthermore, a drive cavity extending laterally is provided inside the lower cross beam, the drive mechanism is provided in the drive cavity, the upper end of the lower cross beam is provided with an arc groove whose axis is colinear with the axis of the heat collecting tube, the lower end of the arc groove extends to the drive cavity, the reflector is slidably provided in the arc groove, and the lower end of the reflector passes through the arc groove and is fixed to the upper end of the drive gear in the drive cavity.

[0011] Furthermore, the reflecting plate is an arc-shaped plate, and the center of the arc-shaped plate coincides with the axis of the heat collecting tube.

[0012] Furthermore, the reflecting plate includes two unit arc plates arranged at intervals, and the two unit arc plates are symmetrically arranged along the axis of the heat collecting tube.

[0013] Furthermore, the curvature of the unit arc plate is 45°, and the angle between the two unit arc plates is 60°.

[0014] Furthermore, the water tank is provided with a circulating water supply pipe, a circulating water return pipe and a circulating water pump. The circulating water supply pipe and the circulating water return pipe are respectively sealed and connected to the lateral ends of the first water pipe. The circulating water pump is used to drive the water in the water tank and the collector to circulate through the circulating water supply pipe and the circulating water return pipe.

[0015] Furthermore, flexible telescopic tubes are provided between the first water pipe and the circulating return pipe, and between the first water pipe and the circulating water supply pipe. The circulating water supply pipe and the circulating return pipe are both used to be fixed to the balcony wall. The lower end of the frame structure is rotatably set on the balcony wall, and its rotation axis extends laterally.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The water tank is installed on the balcony side wall, and the collector is installed at the balcony window. The balcony side wall can be used to load the water tank to avoid excessive load on structures such as the balcony fence, which may cause safety problems. The water tank is specifically installed on the upper part of the balcony side wall to avoid accidental burns to people and avoid affecting the lighting.

[0018] The water storage tank and heat collector are interconnected, allowing water from the tank to flow into the heat collector. The heat pipes in the heat collector heat the water under sunlight, and the hot water is then fed back into the water storage tank for use. A reflector is installed on the side of the heat collector facing the interior of the room. This reflector reflects sunlight to the unheated side of the heat pipe, improving its heating efficiency.

[0019] The light intensity sensor can be used to determine the direction of sunlight based on the light intensity. The driving mechanism drives the reflector to rotate based on the information from the light intensity sensor, and adjusts the illumination angle of the reflector in real time, so that the reflector is in the optimal illumination position, increasing thermal efficiency and improving the heating effect of the collector tube.

[0020] (2) The existing collector is fixed to a structure such as a balcony railing and has a fixed inclination angle. The lower end of the frame structure of the collector of the present application is rotatably mounted on the balcony wall. Using the initially set local latitude parameters, when no one is home or the balcony is not affected, the collector can be tilted and rotated as a whole to adjust the collector inclination angle in real time, so that the collector is at the optimal angle for receiving sunlight, thereby increasing thermal efficiency and improving the heating effect of the collector tube. At the same time, when the balcony is in use, the overall tilt of the collector can be canceled with one click to ensure the balcony is usable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the balcony in Example 1 of the present invention.

[0022] Figure 2 This is a structural schematic diagram of a balcony railing high-efficiency solar water heater installed on a balcony in Example 1 of the present invention.

[0023] Figure 3 This is a rear view of a high-efficiency solar water heater with balcony railings installed on a balcony in Example 1 of the present invention.

[0024] Figure 4 This is a front view of a high-efficiency solar water heater with a balcony railing installed on a balcony in Example 1 of the present invention.

[0025] Figure 5 This is a structural diagram of a high-efficiency solar water heater for balcony railings in Example 1 of the present invention.

[0026] Figure 6 It is a partial structural diagram of the collector in Example 1 of the present invention.

[0027] Figure 7 It is a top view of the lower crossbeam, heat collecting tubes and reflective plates in Example 1 of the present invention.

[0028] Figure 8 It is a top view of the display drive mechanism inside the lower crossbeam in Example 1 of the present invention.

[0029] Figure 9 It is a side sectional view of the lower crossbeam, heat collecting tube, reflecting plate and driving mechanism in Example 1 of the present invention.

[0030] Figure 10 Schematic diagram of sunlight reflected by the reflector in Example 1 of the present invention.

[0031] Figure 11 It is a front view of the upper crossbeam, heat collecting tubes, reflective plates and guide plates in Example 1 of the present invention.

[0032] Figure 12 It is a side view of the upper crossbeam, heat collecting tubes, reflective plates and guide plates in Example 1 of the present invention.

[0033] Figure 13 It is a bottom view of the upper crossbeam, heat collecting tubes, reflective plates and guide plates in Example 1 of the present invention.

[0034] Figure 14 This is a schematic diagram of the installation of the collector and the balcony window in Example 1 of the present invention.

[0035] Figure 15 It is a top view of the lower crossbeam, heat collecting tubes and reflective plates in Example 2 of the present invention.

[0036] In the figure: 1. balcony; 11. balcony side wall; 12. balcony window; 13. window; 2. water storage tank; 21. circulating water supply pipe; 22. circulating water return pipe; 23. circulating water pump; 24. water supply pipe; 25. domestic water pipe; 26. flexible telescopic pipe; 27. rotatable joint; 28. water pipe valve; 29. ​​water tank exhaust pipe; 210. return water exhaust pipe; 211. return water exhaust valve; 212. water supply solenoid valve; 213. control panel; 214. first horizontal section; 215. first vertical section; 216. second horizontal section; 217. second vertical section Vertical section; 3. Collector; 31. Frame structure; 311. Upper crossbeam; 312. Lower crossbeam; 313. Vertical support beam; 314. Rotating shaft; 32. Collecting tube; 33. First water pipe; 34. Heat reflection mechanism; 341. Reflecting plate; 342. Driving gear; 343. Driving motor; 344. Driving rack; 345. Driving cavity; 346. Arc groove; 347. Unit arc plate; 348. Limit block; 36. Guide plate; 361. Guide groove; 37. Connecting pipe; 4. Rotating motor; 41. Bearing; 42. Rotating seat. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0039] refer to Figures 1 to 14 The present invention relates to a balcony railing high efficiency solar water heater (hereinafter referred to as solar water heater) which is applied to Figure 1 The balcony 1 shown includes a balcony side wall 11 and a balcony window 12 , and a window 13 is provided in the balcony window 12 .

[0040] Specifically, the solar water heater includes a water tank 2 and a collector 3 that are interconnected, wherein the water tank 2 is fixedly arranged on the upper part of the balcony side wall 11, and the collector 3 is a railing structure arranged at the balcony window 12. The collector 3 is used to form the railing of the balcony 1 to meet the protection function.

[0041] Specifically, the heat collector 3 comprises a frame structure 31, heat collecting tubes 32, a first water pipe 33, and a heat reflecting mechanism 34. The frame structure 31 is positioned above the balcony window 12 and inside the window 13. Multiple heat collecting tubes 32 are arranged laterally within the frame structure 31, and the first water pipe 33 connects multiple heat collecting tubes 32. The heat reflecting mechanism 34 comprises a reflector 341, a light intensity sensor (not shown), and a drive mechanism. Each heat collecting tube 32 is provided with a reflector 341 on the side facing the interior. The reflector 341 is rotatably mounted on the frame structure 31, with its rotation axis aligned with the axis of the heat collecting tube 32. The drive mechanism is used to rotate the reflector 341 based on information from the light intensity sensor, directing it toward the sun and reflecting sunlight toward the heat collecting tube 32. Regarding the placement of the light intensity sensors, multiple sets of light intensity sensors can be positioned laterally on the side of the frame structure facing the balcony window 12, depending on actual needs. The intensity parameters of each light intensity sensor are used to determine the location with the highest light intensity.

[0042] Specifically, in this embodiment, Figure 3 、 6 As shown, the water tank 2 is provided with a circulating water supply pipe 21, a circulating water return pipe 22 and a circulating water pump 23, wherein the circulating water supply pipe 21 and the circulating water return pipe 22 are respectively sealed and connected with the lateral ends of the first water pipe 33, and the circulating water pump 23 is provided on the circulating water supply pipe 21. The circulating water pump 23 is used to drive the water in the water tank 2 and the collector 3 to circulate through the circulating water supply pipe 21 and the circulating water return pipe 22.

[0043] Water tank 2 is equipped with a water level sensor. It is also connected to a water supply pipe 24 and a domestic water pipe 25. The water supply pipe 24 is equipped with a water supply solenoid valve 212, and the domestic water pipe 25 is used to connect to water-using appliances. When the water level sensor detects that the water level in tank 2 has dropped to a set low level, the control program within tank 2 controls the water supply solenoid valve 212 to open, allowing water to be injected into tank 2 through the water supply pipe 24. When the water level reaches the set level, the water supply solenoid valve 212 closes, completing the automatic water replenishment.

[0044] The water tank 2 is an insulated water tank 2. Water temperature sensors are provided inside the water tank 2 and the heat collector 3. When the water temperature sensor detects that the water temperature in the water tank 2 is too low, the control program in the water tank 2 controls the circulating water pump 23 to start, and pumps the water heated by sunlight in the heat collector 3 into the water tank 2, thereby increasing the water temperature of the water tank 2. At the same time, the cold water in the water tank 2 is injected into the heat collector 3 for further heating, thereby realizing automatic control of the water temperature.

[0045] In this embodiment, the water tank 2 is also provided with a water tank exhaust pipe 29 for exhausting air from the water tank 2. The circulating water return pipe 22 is also provided with a return water exhaust pipe 210, and a return water exhaust valve 211 is provided on the return water exhaust pipe 210 for draining water or exhausting air from the water tank 2. The circulating water supply pipe 21 is also provided with a water pipe valve 28 for controlling the water supply.

[0046] The water tank 2 also includes a control panel 213 mounted on the balcony side wall 11. This control panel 213 is used to control the control system, including setting the operating logic conditions of the solenoid valves, setting the operating cycle conditions of the circulating water pump 23, displaying the real-time water temperature of the water tank and the water temperature of the collector 3, and setting the start and stop temperatures of the circulating water pump 23. In this embodiment, the solar water heater also includes a mobile phone remote monitoring function, using the control panel 213 to assist with intelligent management and control software and hardware, enabling remote mobile phone data query and control of valve openings. A pressure switch is also embedded in the ground floor of the balcony 1, and humidity sensors are installed near the windows and side walls of the balcony 1. When a water leak occurs, it will be detected and a remote alarm will be issued.

[0047] In this embodiment, preferably, Figure 5 、 6 As shown in Figures 1 and 13, the frame structure 31 is a rectangular frame structure 31 formed by an upper crossbeam 311, a lower crossbeam 312, and a vertical support beam 313. A first water pipe 33 is disposed on the upper crossbeam 311, and the upper ends of the heat collecting tubes 32 are in sealed communication with the first water pipe 33. Specifically, the upper crossbeam 311 is hollow, with the cavity forming the first water pipe 33. The upper ends of the heat collecting tubes 32 extend upwardly into the upper crossbeam 311 and are in sealed communication with the first water pipe 33. The first water pipe 33 is used to connect the multiple heat collecting tubes 32 in the frame structure 31 in series. The lower ends of the heat collecting tubes 32 are fixed to the lower crossbeam 312.

[0048] In this embodiment, if Figure 3 、 5 As shown, two groups of heat collectors 3 are arranged at intervals at the balcony window 12 as needed, and a connecting pipe 37 is connected between the upper beams 311 of the two heat collectors 3. Specifically, the connecting pipe 37 is connected to the first water pipe 33 inside the upper beam 311. The two heat collectors 3 are connected in series through the connecting pipe 37, and the circulating water supply pipe 21 and the circulating return water pipe 22 are respectively connected to the first water pipes 33 of the two groups of heat collectors 3 to form a loop.

[0049] In this embodiment, the drive mechanism preferably includes a drive gear 342 and a drive motor 343. The drive gears 342 correspond one-to-one with the reflectors 341, and the reflectors 341 are fixedly connected to the corresponding drive gears 342. The drive mechanism also includes a drive rack 344 extending in a transverse direction. The length of the drive rack 344 matches the length of the spacing between the two drive gears 342 at both ends along the length of the heat collector 3. The drive rack 344 is slidably disposed on the lower crossbeam 312 in a transverse direction. Each drive gear 342 meshes with the drive rack 344 for transmission. The drive rack 344 is used to link the drive gears 342, and a single drive motor 343 can drive each drive gear 342 to rotate, thereby synchronously driving each reflector 341 to rotate, achieving synchronous adjustment.

[0050] Specifically, in this embodiment, the lower crossbeam 312 is a hollow beam, and a rectangular drive cavity 345 extending in the transverse direction is provided inside the lower crossbeam 312, and the drive mechanism is entirely provided in the drive cavity 345. Figure 7 、 8 As shown in Figure 9, the lower end of the heat collecting tube 32 is provided with a conical tip, and the position of the lower cross beam 312 corresponding to the heat collecting tube 32 is provided with a through hole adapted to the conical tip. The conical tip of the lower cross beam passes through the through hole, and the heat collecting tube 32 is located on the lower cross beam. This arrangement is convenient for positioning and fixing on the one hand, and for replacement and disassembly on the other hand.

[0051] A vertically arranged drive motor 343 is coaxially positioned below one of the heat collecting tubes 32 on the lower crossbeam. The motor shaft of the drive motor 343 faces upward, and a drive gear 342 is fixed to the shaft of the drive motor 343 to prevent rotation. A plurality of stoppers 348 are fixedly positioned laterally on one side of the drive cavity 345. The stoppers 348 have slots that mate with drive racks 344 on the side facing the drive gears 342. The drive racks 344 are inserted into the slots, allowing them to slide laterally relative to the stoppers 348. The drive gears 342 mesh with the drive racks 344, acting as the driving wheel that drives the drive racks 344.

[0052] In this embodiment, a rotating shaft (not shown in the figure) is coaxially fixed below the heat collecting tube 32 at a position other than the driving motor 343, and a driving gear 342 is rotatably mounted on each rotating shaft. Each driving gear 342 is engaged with a driving rack 344 and is driven to rotate by the driven rack 344 as a driven wheel. At the same time, each driving gear 342 provides support for the driving rack 344 to prevent the driving rack 344 from falling out of the limit block 348.

[0053] Of course, in other embodiments, an upward extending slide rail may be provided on the lower side of the notch of the limit block 348, on the side facing the drive gear 342, and a slide groove extending laterally may be provided on the lower side of the drive rack 344, and the slide groove may be slidably provided on the slide rail to prevent the drive rack 344 from disengaging from the limit block 348.

[0054] In this embodiment, an arcuate slot 346 is provided at the upper end of the lower crossbeam, corresponding to the position of the drive gear 342, with its axis collinear with the axis of the heat collecting tube 32. The lower end of the arcuate slot 346 extends into the drive cavity 345. The reflector plate 341 is slidably disposed within the arcuate slot 346, and the lower end of the reflector plate 341 passes through the arcuate slot 346 and is fixed to the upper end of the corresponding drive gear 342 within the drive cavity 345. When each drive gear 342 is rotated by the drive motor 343, it drives the reflector plate 341 thereon to rotate, thereby adjusting the reflector plate 341 to the optimal reflection angle for receiving solar radiation, thereby increasing the concentration rate and thermal efficiency.

[0055] Preferably, in this embodiment, the reflective plates 341 are arc-shaped plates, the center of which coincides with the axis of the heat collecting tube 32, and adjacent reflective plates 341 are spaced apart. Specifically, in this embodiment, the reflective plates 341 are arc-shaped metal plates, forming guardrails to prevent collisions and falls. The side of the reflective plates 341 facing the heat collecting tube 32 is a mirrored surface, which uses mirrored reflection to focus light and improve thermal efficiency.

[0056] like Figure 10 As shown, when sunlight shines, the entire curved reflector 341 is partially blocked by the heat collecting tube 32 and is unable to reflect sunlight. Therefore, in this embodiment, the reflector 341 includes two spaced-apart curved plates 347, which are symmetrically arranged along the axis of the heat collecting tube 32. While ensuring the reflection effect, the material usage is reduced, and on the other hand, the obstruction is reduced, thereby increasing the light transmittance of the balcony 1.

[0057] Specifically, in this embodiment, the curvature of the unit curved plate 347 is 45°, and the angle between the two unit curved plates 347 is 60°. In other embodiments, the curvature of the unit curved plate 347 can also be 30°, 60°, etc., and the angle between the two unit guard plates can also be 30°, 45°, etc. The specific curvature and angle can be set according to the actual needs of reflecting sunlight and increasing light transmittance, and are not limited here.

[0058] In this embodiment, the upper end of the reflector 341 extends to the upper beam 311. Specifically, Figure 11 、 12As shown in Figures 13 and 14, a guide plate 36 is provided at the lower end of the upper crossbeam 311, corresponding to the position of the reflector 341. A guide groove 361 extending upward and mates with the arcuate groove 346 is provided on the lower end surface of the guide plate 36. The upper end of the reflector 341 slides through and rotates within the guide groove 361. The guide plate 36 supports and guides the reflector 341, improving its movement stability. Of course, in other embodiments, an upwardly extending guide groove 361 may also be provided at the lower end of the upper crossbeam 311, depending on actual needs.

[0059] In this embodiment, if Figure 3 、 5 As shown, the circulating water supply pipe 21 includes a first transverse section 214 and a first vertical section 215, which are connected by a flexible telescopic pipe 26. The circulating water return pipe 22 includes a second transverse section 216 and a second vertical section 217, which are connected by a flexible telescopic pipe 26.

[0060] The first transverse section 214 and the second transverse section 216 are both fixedly mounted on the wall of the balcony 1. The lower ends of the first vertical section 215 and the second vertical section 217 are in communication with the first water pipe 33 of the heat collector 3.

[0061] At the same time, in this embodiment, Figure 6 、 14 As shown, a rotating shaft 314 is provided on both lateral sides of the lower crossbeam 312 of the heat collector 3. A rotating seat 42 is provided in the side wall of the balcony window 12 at a position corresponding to the rotating shaft 314. The rotating shaft 314 is rotatably mounted on the rotating seat 42 via a bearing 41, and the rotating seat 42 supports the heat collector 3. A rotating motor 4 is provided in a lateral side wall of the balcony window 12, inside the rotating seat 42 on that side. The rotating motor 4 is engaged with the rotating shaft 314 and drives the rotating shaft 314 to rotate. In this embodiment, the rotating motor 4 is a self-locking motor.

[0062] Unlike conventional collectors 3, which are fixed to structures such as balcony railings and have a fixed inclination angle, the present collector 3 has its frame structure pivotally mounted on the balcony 1 wall and driven by a rotary motor 4. In actual use, the angle of incidence of sunlight can be calculated based on the initially set location latitude parameters and the local real-time information such as the solar azimuth and altitude that changes with time and latitude. The tilt angle of the collector 3 can then be adjusted to ensure that the entire structure is perpendicular to the sun's rays. As the collector 3 rotates, a flexible telescopic tube 26 ensures that the corresponding water pipes have sufficient room to deform as the frame structure rotates and tilts.

[0063] Specifically, when no one is at home or the balcony is not used, the rotating motor 4 drives the rotating shaft 314 to rotate, so that the collector 3 is tilted and flipped toward the room as a whole. According to the incident angle of sunlight at different times, the collector 3 is adjusted to an angle perpendicular to the light, so that the collector 3 is at the optimal illumination angle, thereby increasing thermal efficiency and improving the heating effect of the heat collecting tube 32.

[0064] In this embodiment, the rotating motor 4 is controlled by a control panel 213. The control panel 213 includes a button for adjusting the illuminated tilt angle and a button for disabling tilt adjustment. Pressing the button activates the illuminated tilt angle adjustment function with one click. The control program calculates the angle of incidence of sunlight based on local latitude parameters and real-time information such as the solar azimuth and altitude angle, which changes over time and latitude. This calculates the angle that the collector 3 needs to be adjusted, controls the rotating motor 4 to rotate a predetermined number of times, and then rotates the collector 3 to the specified angle and maintains it there. Pressing the button for disabling tilt adjustment causes the rotating motor 4 to rotate the collector 3 in the opposite direction, returning it to its initial position and maintaining it there, ensuring that the balcony remains usable. In this embodiment, depending on actual usage requirements, a reduction mechanism such as a speed reducer can be used to transmit power between the rotating motor 4 and the rotating shaft 314.

[0065] In other embodiments, the position of the reflector 341 can also be adjusted according to the latitude parameters of the location and the real-time solar azimuth angle, solar altitude angle and other information that changes with time and latitude, so that the reflector 341 is arranged to face the sun in real time.

[0066] Specifically, in this embodiment, two heat collectors 3 are spaced laterally apart. The upper crossbeams 311 of the two heat collectors 3 are connected in series via a connecting pipe 37, and the lower crossbeams 312 are connected in series via a connecting beam. In this embodiment, the connecting pipe 37 is a rigid tube, so the connecting pipe 37 and the connecting beam form a rigid whole. A rotating motor 4 is provided on one side of the balcony window 12, driving the two heat collectors 3 to rotate and adjust their angles.

[0067] Of course, in other embodiments, the connecting beam may not be provided, and the connecting pipe 37 is a telescopic hose. In this case, a set of rotating motors 4 may be provided on both sides of the balcony window 12, and the two rotating motors 4 may be used to adjust the flipping angles of the two collectors 3 respectively.

[0068] In this embodiment, the first vertical section 215 and the second vertical section 217 are rigid tubes. Rotatable joints 27 are provided at the lower ends of each of the first and second vertical sections 215, 217. The inner sides of the rotatable joints 27 communicate with the corresponding first water pipes 33. The rotatable joints 27 connect the first vertical section 215 and its corresponding first water pipe 33, and the second vertical section 217 and its corresponding first water pipe 33. Specifically, the rotatable joints 27 are common knowledge well known to those skilled in the art, and their specific structure and principles will not be described in detail here.

[0069] The rotatable joint 27 allows the first and second vertical sections 215, 217 to rotate relative to the heat collector 3 when the heat collector 3 is tilted indoors to change its angle, preventing damage from being pulled. This also allows the first and second vertical sections 215, 217 to be arranged nearly vertically, improving stability and reducing space usage.

[0070] Working process of this application:

[0071] The water storage tank 2 is connected to the heat collector 3. The heat collector 3 receives solar radiation and uses the heat collecting pipe 32 to heat the internal water. The cold water in the water storage tank 2 is injected into the first water pipe through the circulating water supply pipe under the action of the circulating water pump 23. Since the density of cold water is greater than that of hot water, the cold water in the first water pipe automatically sinks into the heat collecting pipe, and the hot water inside the heat collecting pipe rises to the first water pipe and enters the water storage tank through the circulating return pipe, completing the exchange of cold and hot water.

[0072] During use, the light intensity sensor determines the direction of the sun and the angle of incidence of sunlight based on the light intensity. The control system controls the operation of the drive motor 343 based on the information from the light intensity sensor. The drive motor 343 drives the drive gear 342 thereon to rotate, and the drive gear 342 drives the drive rack 344 to move horizontally, thereby driving the remaining drive gears 342 to rotate synchronously, driving the reflector 341 on the drive gear 342 to rotate in the arc groove 346, so that the reflector 341 moves with the position of the sun and rotates to the optimal reflection angle, thereby increasing the concentration rate and thermal efficiency.

[0073] When no one is at home or the balcony 1 is not used, the control system controls the rotation motor 4 according to the light intensity sensor information. The rotation motor 4 drives the collector 3 to flip toward the room as a whole until the heat collecting tube 32 is perpendicular to the angle of sunlight, further increasing the thermal efficiency.

[0074] The solar water heater of the present invention sets the water tank 2 on the balcony side wall 11 and the collector 3 at the balcony window 12. The balcony side wall 11 can be used to load the water tank, so as to avoid safety problems caused by excessive load on structures such as the balcony 1 fence. The water tank is specifically set on the upper part of the balcony side wall 11, which can avoid people from accidentally touching and scalding, and at the same time avoid affecting lighting.

[0075] The water tank 2 and heat collector 3 are interconnected. Water in the water tank 2 can be directed to the heat collector 3. The heat collecting tube 32 of the heat collector 3 heats the water in the water tank 2 under sunlight, and the heated water is then directed to the water tank 2 for use. A reflector 341 is provided on the side of the heat collector 3 facing the interior of the room. This reflector 341 reflects sunlight to the unlit side of the heat collecting tube 32, improving the heating efficiency of the heat collecting tube 32. A light intensity sensor determines the direction of sunlight based on light intensity. A drive mechanism rotates the reflector 341 based on the light intensity sensor information, adjusting the angle of illumination of the reflector 341 in real time to ensure that the reflector 341 is in the optimal position for illumination, thereby enhancing the heating efficiency of the heat collecting tube 32.

[0076] In summary, the solar water heater of the present invention has anti-collision protection, heat preservation and anti-scalding, high safety for personnel and equipment, a larger lighting area of ​​the heat collecting tube 32, higher thermal efficiency, does not occupy the balcony 1, and has very little usable space; does not reduce the window lighting area, and the balcony board load increases very little, and has a high safety level.

[0077] Example 2: This example provides a different heat collector. Different from Example 1, in this example, Figure 15 As shown, while ensuring the use effect and safety, the curvature of the arc groove 346 is greater than 180° and less than 360°, ensuring that the reflective plate 341 can receive sunlight at all times, and the reflective plate 341 is a whole arc plate.

[0078] Example 3: This example provides a different heat collector. Unlike Example 1, in this example, when actual use requirements are met, the driving mechanism can be set on the outside of the lower beam. Specifically, a transmission tooth is provided on the side of the reflective plate facing the room, and the transmission teeth are engaged and transmitted by a driving rack. The driving rack is set on the lower beam along the horizontal sliding direction, and a driving motor is set between two reflective plates. The driving motor drives the driving rack to move horizontally through the driving wheel, thereby driving each reflective plate to rotate.

[0079] Example 4: This example provides a different collector. Unlike Example 1, in this example, to meet actual usage requirements, each drive gear is provided with a set of drive motors. In this case, a drive rack is no longer provided, and each reflector is driven to rotate by a separate drive motor.

[0080] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0081] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0082] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A high-efficiency solar water heater for balcony railings, comprising a water storage tank and a heat collector connected to each other, characterized in that: The water storage tank is fixedly installed on the side wall of the balcony, and the collector is a railing-type collector installed at the balcony window. The railing-type collector includes a frame structure, a heat collecting tube, a first water pipe and a heat reflecting mechanism. The heat collecting tube is arranged in multiple lateral intervals inside the frame structure, and the first water pipe connects multiple heat collecting tubes. The heat reflecting mechanism includes a reflecting plate, a light intensity sensor and a driving mechanism. Each heat collecting tube is provided with a reflecting plate on the side facing the room. The reflecting plate is rotatably set on the frame structure, and its rotation axis is collinear with the axis of the heat collecting tube. The driving mechanism is used to drive the reflecting plate to rotate according to the information of the light intensity sensor to reflect sunlight to the heat collecting tube.

2. The high-efficiency solar water heater for balcony railings according to claim 1 is characterized in that: The frame structure is a rectangular frame structure surrounded by an upper crossbeam, a lower crossbeam and a vertical support beam. The first water pipe is arranged on the upper crossbeam, the upper end of the heat collecting pipe is sealed and connected to the first water pipe, and the lower end of the heat collecting pipe is fixed on the lower crossbeam.

3. The high-efficiency solar water heater for balcony railings according to claim 2 is characterized in that: The driving mechanism includes a driving gear and a driving motor. The driving gear corresponds to the reflecting plate one by one, and the reflecting plate is fixedly connected to the corresponding driving gear.

4. The high-efficiency solar water heater for balcony railings according to claim 3 is characterized in that: The driving mechanism further comprises a driving rack, the length of the driving rack extending in the transverse direction, and the driving rack being arranged on the lower crossbeam for sliding in the transverse direction, and each of the driving gears is meshed with the driving rack for transmission.

5. The high-efficiency solar water heater for balcony railings according to claim 4 is characterized in that: A drive cavity extending laterally is provided inside the lower crossbeam, the drive mechanism is provided in the drive cavity, the upper end of the lower crossbeam is provided with an arc groove whose axis is collinear with the axis of the heat collecting tube, the lower end of the arc groove extends to the drive cavity, the reflector is slidably provided in the arc groove, and the lower end of the reflector passes through the arc groove and is fixed to the upper end of the drive gear in the drive cavity.

6. The high-efficiency solar water heater for balcony railings according to claim 1, characterized in that: The reflecting plate is an arc-shaped plate, and the center of the arc-shaped plate coincides with the axis of the heat collecting tube.

7. The high-efficiency solar water heater for balcony railings according to claim 6, characterized in that: The reflecting plate includes two unit arc plates arranged at intervals, and the two unit arc plates are symmetrically arranged along the axis of the heat collecting tube.

8. The high-efficiency solar water heater for balcony railings according to claim 7, characterized in that: The curvature of the unit arc plate is 45°, and the angle between the two unit arc plates is 60°.

9. The high-efficiency solar water heater for balcony railings according to claim 1, characterized in that: The water tank is provided with a circulating water supply pipe, a circulating water return pipe and a circulating water pump. The circulating water supply pipe and the circulating water return pipe are respectively sealed and connected to the lateral ends of the first water pipe. The circulating water pump is used to drive the water in the water tank and the collector to circulate through the circulating water supply pipe and the circulating water return pipe.

10. The high-efficiency solar water heater for balcony railings according to claim 9, characterized in that: Flexible telescopic pipes are provided between the first water pipe and the circulating return pipe, and between the first water pipe and the circulating water supply pipe. The circulating water supply pipe and the circulating return pipe are both used to be fixed to the balcony wall. The lower end of the frame structure is rotatably set on the balcony wall, and its rotation axis extends laterally.

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