Solar water heater

Abstract

The utility model discloses a solar water heater which comprises a shell, a box body, a plurality of light gathering pieces and a plurality of heat conduction pieces, the box body is located in the shell and used for containing liquid, a vacuum cavity is defined between the box body and the shell, the light gathering pieces are evenly arranged on the outer surface of the shell, and the heat conduction pieces are fixedly arranged on the outer surface of the box body. Each heat conduction part is partially located in the shell and used for transferring heat collected by the light gathering part into the box body. The condensation pieces are arranged on the outer surface of the shell, so that heat from the sun can be collected at multiple angles, the condensation pieces transmit the collected heat to the heat conduction pieces, the heat conduction pieces transmit the heat from the condensation pieces to water in the box body, and the effect of heating the water in the box body is achieved; compared with an existing solar water heater, the water heater can collect solar energy at multiple angles, and therefore the water heating effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water heater technical field, especially a solar water heater. BACKGROUND

[0002] The existing solar water heater mainly depends on solar radiation to carry out heat conversion, and its performance is significantly affected by the angle of direct and oblique sunlight. At noon, the sun is at the highest point, and the sunlight is directly incident on the ground, so that the solar water heater can receive high-intensity solar radiation, thereby realizing efficient heat conversion. However, as the sun gradually sets, the sunlight gradually changes from direct to oblique, and the amount of solar radiation received per unit area is greatly reduced. This change causes the solar water heater to collect significantly less heat in the afternoon than at noon, thereby affecting the overall heat conversion efficiency and the stability of hot water supply. Therefore, we provide a solar water heater to solve the above problems. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, and provides a solar water heater.

[0004] The utility model discloses the purpose is realized through the following technical scheme:

[0005] A solar water heater comprises:

[0006] A shell;

[0007] A box body is located inside the shell, the box body is used for containing liquid, and a vacuum cavity is defined between the box body and the shell;

[0008] A plurality of light collectors are uniformly arranged on the outer surface of the shell;

[0009] A plurality of heat conductors are fixedly arranged on the outer surface of the box body, each heat conductor is partially located inside the shell, and the other part of the heat conductor is located in the vacuum cavity, and the heat conductor is used to transfer the heat collected by the light collector to the inside of the box body.

[0010] Preferably, the heat conductor comprises a heat conduction rod fixedly connected with the box body, and the heat conduction rod partially penetrates into the inside of the box body, and the other part of the heat conduction rod is located in the vacuum cavity, and a heat receiving plate is fixedly installed at the end of the heat conduction rod, and the heat receiving plate is located in the inside of the vacuum cavity.

[0011] Preferably, at least one electric heating element is fixedly installed in the inside of the box body.

[0012] Preferably, the box is connected with an inlet and outlet water structure, the inlet and outlet water structure comprises a water inlet pipe communicated with the inside of the box, and the inlet and outlet water structure further comprises a drain pipe communicated with the inside of the box.

[0013] Preferably, a temperature sensor is installed in the inside of the box.

[0014] Preferably, a heat preservation plate is fixedly arranged at the bottom of the box.

[0015] Preferably, a first liquid level sensor is installed at the bottom of the box, and a second liquid level sensor is installed at the top of the box.

[0016] Preferably, the light collecting piece is a convex lens or a Fresnel lens.

[0017] Preferably, the shell and the box are both semispherical.

[0018] The utility model has the following advantages:

[0019] 1. The utility model discloses a light collecting piece is arranged on the outer surface of the shell, and at least part of the light collecting piece can face the sun for heat collection at any time, the light collecting piece transmits the collected heat to the heat conducting piece, the heat conducting piece transmits the heat from the light collecting piece to the water in the box, thereby achieving the effect of heating the water in the box.

[0020] 2. The heat receiving plate is located on the focal point of the light collecting piece, and then the light collecting piece transmits the solar energy to the heat receiving plate and then transmits to the water in the inside of the box through the heat conducting rod, thereby achieving the effect of heating the water in the box.

[0021] 3. The utility model discloses a heating element can heat the water in the box, thereby achieving the effect of heating the water in the box when the solar intensity is low or cloudy, and facilitating the use of the user. DRAWINGS

[0022] Figure 1 It is the three-dimensional state structure schematic diagram of the water heater of the utility model.

[0023] Figure 2 It is the three-dimensional schematic diagram of the water heater of the utility model in the section state.

[0024] Figure 3 It is the front view schematic diagram of the water heater of the utility model in the section state.

[0025] Figure 4 It is the heat conducting piece structure schematic diagram of the utility model.

[0026] In the figure, 100, shell; 200, box; 300, light collector; 400, heat conducting piece; 410, heat conducting rod; 420, heated plate; 500, vacuum cavity; 600, electric heating piece; 700, temperature sensor; 810, water inlet pipe; 820, drain pipe; 900, heat preservation plate; 1000, first liquid level sensor; 1100, second liquid level sensor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The existing solar water heater can collect the most at noon when the sun is directly incident, but in the morning or afternoon, the sun is incident on the solar water heater in an inclined state, resulting in less heat collected by the solar energy. Therefore, the present application adopts a plurality of light collectors 300 arranged on the surface of the hemispherical shell 100 to collect solar energy, so that the sun can be directly incident on the corresponding light collector 300 in the morning or afternoon, thereby realizing the maximum collection of solar energy.

[0030] Specifically Figures 1 to 4 The embodiment disclosed by the drawing shows a solar water heater, which comprises a shell 100, a box 200, a plurality of light collectors 300 and a plurality of heat conducting pieces 400.

[0031] Specifically, the box 200 is located inside the shell 100, the box 200 is used for containing liquid, the box 200 and the shell 100 define a vacuum cavity 500, a plurality of light collecting members 300 are uniformly arranged on the outer surface of the shell 100, a plurality of heat conducting members 400 are fixedly arranged on the outer surface of the box 200, each heat conducting member 400 is partially located inside the shell 100, and the other part of the heat conducting member 400 is located in the vacuum cavity 500, and the heat conducting member 400 is used for transferring the heat collected by the light collecting member 300 to the inside of the box 200.

[0032] In the embodiment, the shell 100 and the box 200 are both semispherical, the light collecting member 300 is a convex lens or a Fresnel lens, and the convex lens or the Fresnel lens is used for focusing light to collect solar energy, and in practice, the convex lens or the Fresnel lens can be selected according to actual needs, which is not limited here.

[0033] Referring to FIGS. 1, 2, 3, 4, 5 and 6, Figure 2 and Figure 3 As shown, the box 200 is provided with a shell 100, and a gap between the shell 100 and the box 200 is a vacuum cavity 500, and the heat conducting member 400 is partially located in the vacuum cavity 500, which is used for receiving the light heat focused by the light collecting member 300, the part of the heat conducting member 400 located in the vacuum cavity 500 is heated, and the heat conducting member 400 transfers the heat to the water in the box 200 under the heat transfer effect, so as to heat the water in the box 200.

[0034] It can be understood that in order to conduct the light heat collected by each light collecting member 300, a heat conducting member 400 is arranged at the position of each light collecting member 300 for heat transfer, the liquid in the box 200 is water, the heat conducting member 400 transfers the light heat collected by the light collecting member 300 to the water in the box 200, and the water is heated.

[0035] In the embodiment, in order to prevent the heat of the water in the box 200 from spreading outward, the vacuum cavity 500 is vacuumized to reduce the heat transfer medium, so that the heat of the water in the box 200 cannot spread outward through the vacuum cavity 500, and since the light collecting member 300 is used for transferring heat to the heat conducting member 400 in the form of light, the vacuumization of the vacuum cavity 500 does not affect the transfer of the light heat, so that the light collecting member 300 can focus the sunlight on the heat conducting member 400 to make the temperature of the heat conducting member 400 rise, and finally the heat is transferred to the water in the box 200.

[0036] It can be understood that, in order to enable the vacuum cavity 500 to be smoothly evacuated, the heat conduction piece 400 and the box body 200 need to be sealed, the shell 100 and the box body 200 need to be sealed, and the light condensing piece 300 and the shell 100 need to be sealed, so that the vacuum cavity 500 can be smoothly evacuated to achieve the heat preservation effect. The specific sealing treatment method can be selected as required, which is not limited here.

[0037] Further, due to the vacuum cavity 500 being evacuated, the external air pressure is large, and the internal air pressure of the vacuum cavity 500 is small. Under the action of the air pressure difference, the shell 100 and the box body 200 can be deformed. In order to ensure the connection strength between the shell 100 and the box body 200, a plurality of connecting rods (not shown in the figure) can be connected between the outer surface of the box body 200 and the inner wall of the shell 100, to prevent the shell 100 from being further deformed. Further, connecting rods (not shown in the figure) can also be provided between the inner wall and the bottom wall of the box body 200, to prevent the box body 200 from being deformed.

[0038] In the present embodiment, water vapor can be generated due to the increase in water temperature in the box body 200, thereby causing the pressure in the box body 200 to increase. In order to prevent the box body 200 from being deformed, a pressure relief valve (not shown in the figure) is installed on the box body 200, thereby achieving the pressure relief function and preventing the pressure in the box body 200 from being too large to cause damage.

[0039] The heat conduction piece 400 comprises a heat conduction rod 410 fixedly connected with the box body 200, and the heat conduction rod 410 is partially inserted into the box body 200. The other part of the heat conduction rod 410 is located in the vacuum cavity 500. The heat conduction rod 410 is fixedly installed with a heated plate 420 at the end thereof. The heated plate 420 is located inside the vacuum cavity 500.

[0040] Referring to Figure 2 , Figure 3 and Figure 4 , the heat conduction rod 410 is inserted into the box body 200. The end of the heat conduction rod 410 towards the shell 100 is fixedly provided with the heated plate 420. The heated plate 420 is located at the focus of the light condensing piece 300, that is, the light focused by the light condensing piece 300 can irradiate the heated plate 420, so that the temperature of the heated plate 420 is increased under the irradiation of the light focused by the light condensing piece 300. Since the heat conduction rod 410 is connected with the heated plate 420, the heat in the heated plate 420 will be transferred to the heat conduction rod 410, and then to the water in the box body 200.

[0041] It should be noted that, in order to ensure that the heat conduction rod 410 can transfer heat to the water, the heat conduction rod 410 is at least partially in contact with the water in the box body 200, so that heat can be transferred to the water.

[0042] The box 200 is internally fixedly provided with at least one electric heating element 600.

[0043] Referring to Figure 2 and Figure 3 As shown in the figures, the solar water heater is used to collect the light and heat of the sun to increase the temperature of the water. If it is a rainy day and there is no sun, the water temperature cannot be increased by the solar collection. Therefore, an electric heating element 600 is installed inside the box 200 to convert electrical energy into heat energy to heat the water in the box 200.

[0044] The box 200 is connected with a water inlet and outlet structure, which comprises a water inlet pipe 810 in communication with the inside of the box 200, and a drain pipe 820 in communication with the inside of the box 200.

[0045] Continuing to refer to Figure 2 and Figure 3 In order to be able to fill and drain the water in the box 200, the water inlet pipe 810 and the drain pipe 820 are arranged in communication with the inside of the box 200. The water inlet pipe 810 is used to fill and supplement the water in the box 200 to prevent the water from being too low to be used. The drain pipe 820 is used to drain the water in the box 200 for the user to use hot water.

[0046] The box 200 is internally provided with a temperature sensor 700. In this embodiment, the temperature sensor 700 is used to monitor the temperature of the water in the box 200 in real time to determine whether the temperature of the water in the box 200 meets the needs.

[0047] The box 200 is fixedly provided with a heat preservation plate 900 at the bottom. In order to prevent the temperature of the water in the box 200 from spreading from the bottom, the heat preservation plate 900 is arranged at the bottom of the box 200.

[0048] The box 200 is internally provided with a first liquid level sensor 1000 and a second liquid level sensor 1100.

[0049] Referring to Figure 2 and Figure 3 In order to prevent the water in the box 200 from being too low or too high, the first liquid level sensor 1000 and the second liquid level sensor 1100 are arranged at the bottom and the top of the inner wall of the box 200, respectively. The first liquid level sensor 1000 and the second liquid level sensor 1100 are used to detect the liquid level. Specifically, the first liquid level sensor 1000 detects the low water level, and the second liquid level sensor 1100 detects the high water level. When filling water, if the water level is higher than the second liquid level sensor 1100, the filling of water is stopped. During use, if the water level is lower than the first liquid level sensor 1000, the water can be filled through the water inlet pipe 810.

[0050] The working process of the utility model is as follows: no matter in the morning, at noon or in the afternoon, the sun will be directly irradiated on a certain number of light collectors 300, thereby increasing the efficiency, the light collector 300 focuses the sunlight on the heated plate 420 to make its temperature rise, then the heat of the heated plate 420 is transmitted to the water in the box body 200 through the heat conducting rod 410, thereby realizing the heating of the water in the box body 200, the hot water can be discharged from the drain pipe 820 for use, if the water in the box body 200 is too low, the box body 200 can be injected with water through the water inlet pipe 810.

[0051] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A solar water heater, characterised in that, Include: The shell (100); The box (200) is located inside the shell (100), the box (200) is used for containing liquid, the box (200) and the shell (100) between the vacuum cavity (500) are defined; Several light collectors (300), several light collectors (300) are uniformly arranged on the outer surface of the shell (100); Several heat conducting members (400), several heat conducting members (400) are fixedly arranged on the outer surface of the box (200), each heat conducting member (400) is partially located inside the shell (100), and the other part of the heat conducting member (400) is located in the vacuum cavity (500), and the heat conducting member (400) is used for transmitting heat collected by the light collector (300) to the inside of the box (200).

2. A solar water heater as claimed in claim 1 wherein: The heat conducting member (400) includes a heat conducting rod (410) fixedly connected with the box (200), and the heat conducting rod (410) is partially deep into the inside of the box (200), the other part of the heat conducting rod (410) is located in the vacuum cavity (500), the end of the heat conducting rod (410) is fixedly installed with a heated plate (420), and the heated plate (420) is located in the vacuum cavity (500).

3. A solar water heater as claimed in claim 1, wherein: The inside of the box (200) is fixedly installed with at least one electric heating member (600).

4. A solar water heater as claimed in claim 1, wherein: The box (200) is connected with the water inlet and outlet structure, the water inlet and outlet structure includes a water inlet pipe (810) communicated with the inside of the box (200), and the water inlet and outlet structure further includes a drain pipe (820) communicated with the inside of the box (200).

5. A solar water heater as claimed in claim 1, wherein: The inside of the box (200) is provided with a temperature sensor (700).

6. A solar water heater as claimed in claim 1, wherein: The bottom of the box (200) is fixedly provided with a heat preservation plate (900).

7. A solar water heater as claimed in claim 1, wherein: The bottom of the box (200) is provided with a first liquid level sensor (1000), and the top of the box (200) is provided with a second liquid level sensor (1100).

8. A solar water heater as claimed in claim 1, wherein: The light collector (300) is a convex lens or a Fresnel lens.

9. A solar water heater as claimed in claim 1, wherein: The shell (100) and the box (200) are both semispherical.

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