CN202691872U - Solar lawn lamp - Google Patents

Abstract

The utility model proposes a solar lawn lamp, which is used to solve the structural defects of the existing solar lawn lamp, which tends to accumulate dust on the top of the lamp, so that the solar battery is easily affected by the dust and reduces the service life. The conversion rate of crystalline silicon solar cells is too low, more cells are needed, and the cost is high, including: a solar energy collection device, the solar energy collection device includes: a transparent hemispherical shell, and a plurality of phenanthrenes are arranged on the inner surface of the hemispherical shell The focus of multiple Fresnel lenses is the same; the center point of the solar cell is located at the focus of multiple Fresnel lenses. The utility model requires small solar cells, which reduces the cost, and improves the conversion rate through the design of a plurality of Fresnel lenses concentrating light on the cells. In addition, the top of the transparent hemispherical shell is curved, which is not easy to accumulate dust, which can ensure that the power of the solar cell is not affected by dust and prolong its service life.

Description

A solar lawn lamp

technical field

The utility model relates to the technical field of solar lighting devices, in particular to a solar lawn lamp.

Background technique

At present, solar lawn lights have been widely used, but basically they are powered by crystalline silicon solar cells, and the conversion rate of crystalline silicon solar cells is about 15%. Chinese application No.: 200720146122.7 patent application proposes a solar lawn lamp. Although the lawn lamp of this application is flexible to use, the top is flat and easy to accumulate dust. It needs to be wiped frequently to ensure the normal operation of the solar cell. Concentrating solar cells require relatively many solar cells, which wastes battery resources.

It can be seen that due to the structural defects of the existing solar lawn lamps, it is easy to accumulate dust on the top of the lamp, so that the solar cells are easily affected by dust and affect the power, reducing the service life, and the conversion rate of the crystalline silicon solar cells used is too low. There are many batteries and the cost is high.

Utility model content

The utility model proposes a solar lawn lamp, which is used to solve the structural defects of the existing solar lawn lamp, which tends to accumulate dust on the top of the lamp, so that the power of the solar cell is easily affected by the dust and reduces the service life. The conversion rate of crystalline silicon solar cells is too low, requiring more cells and high cost.

The technical scheme of the utility model is achieved in that:

A solar lawn lamp, comprising:

The solar energy collection device includes: a transparent hemispherical shell, a plurality of Fresnel lenses are arranged on the inner surface of the hemispherical shell, and the focal points of the multiple Fresnel lenses are the same; a flat plate is connected with the edge of the opening end of the hemispherical shell , a solar cell and a photoresistor controller are arranged on the first surface of the flat panel facing the hemispherical shell, and the central point of the solar cell is located at the focal point of a plurality of Fresnel lenses;

The bracket includes: a support plate with a first cavity inside, fixedly connected to the second surface of the plate through a support tube; a support column with a second cavity inside, fixedly connected to the first surface of the support plate facing away from the plate;

a storage battery arranged in the second cavity;

The LED lamp is arranged on the second surface of the support plate facing the flat plate, and the LED lamp is covered with a lampshade;

LED constant current driver, one end is connected to the battery, the other end is connected to the LED lamp, and is arranged in the first cavity;

Wherein, the solar cells are connected to the storage battery by wires passing through the support tube and the first cavity; the photoresistor controller, the solar cells, the storage battery and the LED constant current driver are jointly connected in a control circuit that coordinates the normal operation of each component.

Wherein, preferably, one Fresnel lens is arranged at the apex of the hemispherical shell, other Fresnel lenses are evenly distributed on the parallel of the hemispherical shell, and all adjacent Fresnel lenses are tangent.

Wherein, preferably, the outer surface of the hemispherical shell is coated with self-cleaning paint.

Wherein, preferably, the hemispherical shell is a hemispherical shell made of transparent plastic.

Wherein, preferably, the solar lawn lamp further includes: cooling fins arranged on the second surface of the plate.

Wherein, preferably, the solar lawn lamp further includes: a fixing device connected to the other end of the support column.

Wherein, preferably, the above-mentioned fixing device is specifically a tapered penetrating foot.

Wherein, preferably, the lampshades are specifically lampshades of different colors.

A solar lawn lamp provided by the embodiment of the present invention utilizes a solar energy collection device to collect solar energy for power supply. The focal points of the Fresnel lenses are the same, the solar cell is placed at the focal point, and the center point of the solar cell is located at the focal point of the multiple Fresnel lenses. In this way, a plurality of Fresnel lenses arranged on the transparent hemispherical shell gather light, and all focus points are located at the same central point of the solar cell to collect solar energy, the required solar cells are small, and the cost is reduced. And the conversion rate is as high as 30%. In addition, the top of the transparent hemispherical shell is curved, which is not easy to accumulate dust, which can ensure that the power of the solar cell is not affected by dust and prolong its service life.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the schematic plan view of the partial structure of a kind of solar lawn lamp of the present utility model;

Figure 2 is a schematic diagram of the planar structure of a solar lawn lamp of the present invention;

Fig. 3 is a front view of a Fresnel lens in a solar lawn lamp of the present invention;

Fig. 4 is a cross-sectional view of a Fresnel lens in a solar lawn lamp of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the embodiment of the utility model provides a solar lawn lamp, including:

The solar energy collection device comprises: a transparent hemispherical shell 1, and the inner surface of the hemispherical shell 1 is provided with a plurality of Fresnel lenses 2, and the focus of the multiple Fresnel lenses 2 is the same; a flat plate 4, with the hemispherical shell The edge of the open end of 1 is connected, and a solar cell 3 and a photoresistor controller are arranged on the first surface of the flat plate 4 facing the hemispherical shell 1, and the central point of the solar cell 3 is located at the focal point of a plurality of Fresnel lenses 2 place;

The support includes: a support plate 12 with a first cavity in it, fixedly connected with the second surface of the flat plate 4 through the support tube 7; a surface fixed connection;

The storage battery 11 is arranged in the second cavity;

The LED lamp 9 is arranged on the second surface of the support plate 12 facing the flat plate 4, and the LED lamp 9 is covered with a lampshade 10;

LED constant current driver 8, one end is connected with battery 11, the other end is connected with LED lamp 9, and is arranged in the first cavity;

Wherein, the solar cells 3 are connected to the storage battery 11 by wires passing through the support tube 7 and the first cavity; the photoresistor controller 6, the solar cells 3, the storage battery 11 and the LED constant current driver 8 are jointly connected to coordinate the normal operation of each component. work in the control circuit.

Compared with the use of crystalline silicon solar cells to collect solar energy in the prior art, a solar lawn lamp provided by the embodiment of the present invention uses a solar energy collection device to collect solar energy for power supply. The solar energy collection device is: a transparent hemisphere A plurality of Fresnel lenses 2 are arranged on the inner surface of the casing 1, and the focal points of the plurality of Fresnel lenses 2 are the same, and the solar cells 3 are placed at the focal points, and the center points of the solar cells 3 are located in the plurality of Fresnel lenses. At the focal point of the Niel lens 2. Like this by being arranged on a plurality of Fresnel lenses 2 on the transparent hemispherical housing 1 to condense light, the focus all converges to the mode of collecting solar energy of the same solar cell sheet 3, the required solar cell sheet is small, reduces cost, and conversion rate up to 30%. In addition, the top shape of the transparent hemispherical shell 1 is arc-shaped, which is not easy to accumulate dust, so as to ensure that the power of the solar cell is not affected by dust and prolong its service life.

Among them, the way that the support tube 7 is fixedly connected to the second surface of the flat plate 4, the way that the support column 14 and the support plate 12 are fixedly connected on the first surface facing away from the flat plate 4, and the second surface of the lampshade 10 and the support plate 12 facing the flat plate 4 There are many ways to connect the surface, for example: spiral connection, and a waterproof ring is added in the middle of the installation to play a role of sealing, so as to ensure that the devices set in each cavity are not affected by external conditions and extend the life of each device. Long service life, prolonging the service life of solar lights.

Wherein, the support tube 7 can be an aluminum alloy tube, a plastic tube, etc., which can protect the electric wires inside it, and its number is not fixed, as long as it can play a fixing role.

In addition, the photoresistor controller 6, the solar cells 3, the storage battery 11 and the LED constant current driver 8 are jointly connected in a control circuit that coordinates the normal operation of each component. Such a control circuit can ensure that: during the day, the photoresistor controller 6 controls the solar cell 3 to be connected to the storage battery 11, charges the storage battery 11, and controls the storage battery 11 to disconnect from the LED constant current driver 8 at the same time, so as to prevent unnecessary lighting during the daytime. waste; at night, the photoresistor controller 6 controls the storage battery 11 to be connected with the LED constant current driver 8, and the LED lamp 9 is bright for lighting.

Wherein, preferably, a Fresnel lens 2 is arranged at the apex of the hemispherical housing 4, and other Fresnel lenses 2 are evenly distributed on the latitude line of the hemispherical housing 4, and adjacent Fresnel lenses 2 are all tangent, Such setting can guarantee that the focal points of each Fresnel lens 2 will gather in one place, and the solar battery sheet 3 is placed at the common focal point, so that the sunlight shining on the surface of the transparent hemispherical shell 4 converges on the solar battery sheet 3, improving the performance of the solar battery sheet 3. The power of the solar cell 3 .

Wherein, preferably, the outer surface of hemispherical housing 4 is coated with self-cleaning paint, like this, dust or dirty liquid all is difficult to adhere to the outer surface of hemispherical housing 4, and outer surface keeps clean easily, has guaranteed that solar cell is free from dust etc. affect its power.

Wherein, preferably, the hemispherical shell 4 is a hemispherical shell made of transparent plastic, and the hemispherical shell 4 is processed by transparent plastic, which is simple and convenient to process and low in cost.

Wherein, preferably, the solar lawn lamp further includes: a cooling fin 5 disposed on the second surface of the plate 4 . Since the plurality of Fresnel lenses 2 effectively converge sunlight, the temperature inside the transparent hemispherical casing 4 will be very high, which will reduce the power of the solar cells 3 . Therefore, the disposition of the heat sink 5 can play a good heat dissipation effect on the solar battery sheet 3 .

As shown in FIG. 2 , the embodiment of the present utility model provides a solar lawn lamp, which further includes: a fixing device 13 connected to the other end of the support column 14 . The function of the fixing device 13 is to fix the solar lawn lamp on the lawn, and its shape can be cylindrical, square and so on.

Wherein, preferably, the above-mentioned fixing device 13 is specifically a tapered penetrating foot. The lower end of the tapered insertion foot is sharper, which is convenient for the flexible placement of the lawn lamp.

Wherein, preferably, the lampshade 10 is specifically a lampshade of different colors. The lampshades of different colors can be replaced to add different decorative effects.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. a solar energy Green ground lamp is characterized in that, comprising:

Solar collecting device comprises: transparent Loadings On Hemispherical Shell, be provided with a plurality of Fresnel Lenses on the inner surface of described Loadings On Hemispherical Shell, and the focus of described a plurality of Fresnel Lenses is identical; One flat board, be connected with the edge of the openend of described Loadings On Hemispherical Shell, the first surface towards described Loadings On Hemispherical Shell at described flat board arranges a solar battery sheet and photo resistance controller, and the central point of described solar battery sheet is positioned at the focus place of described a plurality of Fresnel Lenses;

Support comprises: in the supporting disk of the first cavity is arranged, be fixedly connected with the second surface of described flat board by stay pipe; In the support column of the second cavity is arranged, with described supporting disk dorsad the first surface of described flat board be fixedly connected with;

Battery is arranged in described the second cavity;

The LED lamp, be arranged at described supporting disk on the second surface of described flat board, be covered with lampshade on the described LED lamp;

The LED constant-flow driver, an end is connected with described battery, and the other end is connected with described LED lamp, is arranged in described the first cavity;

Wherein, described solar battery sheet utilization is passed described stay pipe and is connected the electric wire of cavity and is connected with described battery; Described photo resistance controller, described solar battery sheet, described battery and described LED constant-flow driver are connected in the control circuit of coordinating each parts normal operation jointly.

2. solar energy Green ground lamp as claimed in claim 1 is characterized in that, place, described Loadings On Hemispherical Shell summit arranges a Fresnel Lenses, and other Fresnel Lenses is evenly distributed on the parallel of described Loadings On Hemispherical Shell, and adjacent each Fresnel Lenses is all tangent.

3. solar energy Green ground lamp as claimed in claim 2 is characterized in that, the outer surface of described Loadings On Hemispherical Shell is coated with self-cleaning coating.

4. solar energy Green ground lamp as claimed in claim 3 is characterized in that, also comprises: described Loadings On Hemispherical Shell is transparent plastic Loadings On Hemispherical Shell processed.

5. solar energy Green ground lamp as claimed in claim 1 is characterized in that, also comprises: fin is arranged on the second surface of described flat board.

6. solar energy Green ground lamp as claimed in claim 1 is characterized in that, also comprises: immobilising device is connected with the other end of described support column.

7. solar energy Green ground lamp as claimed in claim 6 is characterized in that, described immobilising device is specially the interspersed pin of taper.

8. solar energy Green ground lamp as claimed in claim 1 is characterized in that, described lampshade is specially the lampshade of different colours.

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