CN206274643U - A kind of photovoltaic cell component structure for being easily installed radiating and cooling device - Google Patents

Abstract

The utility model discloses a photovoltaic cell module structure which is convenient for installing a heat dissipation and cooling device. A plurality of photovoltaic cell sheets are arrayed on the photovoltaic cell assembly, and the photovoltaic cell sheets are all electrically connected to a junction box fixed on the back plate of the photovoltaic cell assembly. There is a gap between the junction box and the photovoltaic cell sheet, the photovoltaic cell assembly is fixed on the back plate of the photovoltaic cell assembly, and the back plate of the photovoltaic cell assembly is fixed in the aluminum alloy frame; the back plate of the photovoltaic cell assembly is fixed on the aluminum alloy frame Alloy heat sink, a thermal conductive silicone grease layer is arranged between the aluminum alloy heat sink and the back plate of the photovoltaic cell module, and a plurality of heat dissipation fins are arrayed on the aluminum alloy heat sink; Low cost, high reliability, simple maintenance, long service life, good heat dissipation and cooling effect, and has good market application value.

Description

A photovoltaic cell module structure that facilitates the installation of heat dissipation and cooling devices

technical field

The utility model relates to the field of photovoltaics, in particular to a structure of a photovoltaic battery assembly which is convenient for installing a heat dissipation and cooling device.

Background technique

With the advancement of technology and the decline of cost, photovoltaic power generation is being widely used on a large scale, but photovoltaic cells are greatly affected by environmental factors such as temperature. When the temperature rises, the output voltage of photovoltaic cells will decrease. The value drops by about 2~3mV.

The temperature of the solar panel is generally stable at 10-30°C above the ambient temperature. Generally speaking, the battery temperature will be below 60°C. In summer, the output power of the general solar cell will be 15%-30% lower than the standard condition. But in the case of poor ventilation, the plate temperature may even reach 80 ℃. In this case, in addition to the decrease of output energy and efficiency caused by the rise of temperature, the mismatch of battery components will also cause the decrease of voltage and current of the whole system, and even cause damage to solar cells due to hot spots due to vicious circle.

Make full use of the existing research results of solar cell materials and processes, starting from improving the working conditions of solar cells, cooling solar cells through engineering thermophysical methods, suppressing the temperature rise of solar cells, and maintaining high efficiency of solar cells in actual operation , is another effective way to improve the efficiency of solar cells. At the same time, the temperature of solar cells can be effectively reduced by cooling down, which is conducive to prolonging the service life of batteries. Therefore, it is of great significance to cool down when photovoltaic cells are generating electricity.

In view of the above situation, there have been some researches on the cooling of solar panels by air cooling and water cooling. To effectively dissipate heat and cool down the cells inside the photovoltaic module, it is necessary to ensure that the photovoltaic cell module is closely integrated with the heat dissipation structure and is easy to manufacture and install.

Such as: a cooling structure for reducing the temperature of photovoltaic power generation components - invention, applicants: Xiong Zhen, Wang Zhenfei. The invention adopts bismuth antimonide or skutterudite thermoelectric power generation module and heat dissipation fan, and installs it on the back plate of the photovoltaic module; solar photovoltaic equipment with thermoelectric power generation device - utility model Zhou Kaiwei, the utility model is installed on the back of the photovoltaic panel Thermoelectric power generation device; concentrating air-cooled photovoltaic power generation device using twin-screw relay transmission, inventors: Zhang Yaoming, etc. This utility model is used for reflective concentrating power generation device, with air ducts, deflectors, etc., and the fan is located at the end of the air duct. The structure is complex and the cost is high; aluminum alloy backplane solar cell module—invention, utility model, applicants: Qin Hong, Shen Hui, etc. In this invention and utility model, aluminum alloy is used to replace the currently used TPT backplane material as the backplane of photovoltaic modules Board; composite solar photovoltaic interface and solar heat pipe integrated device - invention, inventor: Chen Sui, the invention is a device that integrates photovoltaic interface and solar heat pipe, photovoltaic power generation and heat collection are carried out simultaneously; photovoltaic power generation system solar cells Component water cooling device - utility model, inventor: He Jianxiong, etc.; concentrating solar photovoltaic power generation device, invention and practical, inventor: Song Liang. The invention is to install a semiconductor cooling sheet on the back of the solar panel to cool down; a photovoltaic module backplane-utility model, inventor: Feng Xiaohong, the utility model is an aluminum alloy photovoltaic backplane, and the backplane is used to replace other materials Backplane; Solar Photovoltaic Panel Circulating Water Cooling Device--Utility Model, Inventors: Fang Bo, Zhang Yuanmin, etc., this utility model is equipped with a water-cooling device on the back of the photovoltaic module; Active cooling solar photovoltaic power generation system-Utility Model-Inventor : Huang Xingbo, the utility model is equipped with a heat collector and heat exchange device on the back of the photovoltaic module; a photovoltaic module cooling device for a photovoltaic power station-invention Gou Xianfang and Fan Weitao, the invention installs a cooling plate on the back of the photovoltaic module; the photovoltaic solar heat pump is multifunctional Chemical system-invention, Ji Jie, the invention installs a heat-conducting aluminum plate and an evaporator of a circulating heat pump on the back of the photovoltaic module; Yin Tingting, a utility model of a solar photovoltaic thermoelectric power generation system, installs a metal heat storage plate and a thermoelectric power generation module on the back of the photovoltaic module; An invention of a solar cell module with a heat pipe radiator, Li Wei, the invention installs a heat pipe heat conduction plate on the back of the photovoltaic cell; a utility model of a solar cell module device that can realize cooling and temperature difference power generation, Liu Wei, the utility model of photovoltaic The battery adopts an aluminum back plate, and a semiconductor thermoelectric power generation sheet and a water storage device are installed on the back plate.

In the above-mentioned patents, in order to dissipate heat and cool down, metal heat conduction plates, heat storage plates, heat collection and heat exchange devices, semiconductor thermoelectric power generation sheets, etc. are installed on the back of the photovoltaic cell module, but the influence of the junction box on the backplane of the photovoltaic module is not considered.

Existing technology has deficiencies and needs to be improved.

Utility model content

In order to solve the defects existing in the current technology, the utility model provides a structure of photovoltaic cell assembly which is convenient for installing a heat dissipation and cooling device.

The technical document provided by the utility model is a photovoltaic cell assembly structure that is convenient for installing a heat dissipation and cooling device. A plurality of photovoltaic cell sheets are arrayed on the photovoltaic cell assembly, and the photovoltaic cell sheets are all connected to the junction box fixed on the back plate of the photovoltaic cell assembly. Sexual connection, leave a gap between the junction box and the photovoltaic cells, the photovoltaic cell assembly is fixed on the back plate of the photovoltaic cell assembly, and the back plate of the photovoltaic cell assembly is fixed in the aluminum alloy frame; the back plate of the photovoltaic cell assembly An aluminum alloy radiator is fixed on the back, and a thermal conductive silicone grease layer is arranged between the aluminum alloy radiator and the back plate of the photovoltaic cell module, and a plurality of cooling fins are arrayed on the aluminum alloy radiator.

Preferably, the installation area of the photovoltaic cells is a complete rectangle, and an aluminum alloy radiator or heat exchanger or a semiconductor thermoelectric power generation sheet is fixed on the back of the back plate of the complete rectangular area.

Preferably, the distance between the junction box and the photovoltaic cells is greater than 1 cm and less than 5 cm.

Preferably, the side frame of the aluminum alloy frame close to the junction box is set as a movable frame, and the movable frame is detachably fixed on the aluminum alloy frame.

Preferably, buckles are provided at both ends of the movable frame, hooks matching the buckles are arranged on the aluminum alloy frame, and the movable frame is fixed on the aluminum alloy frame through the buckles and hooks.

Preferably, one end of the movable frame is hinged to the aluminum alloy frame, and the other end is fixed to the aluminum alloy frame through a movable buckle.

Preferably, the heat dissipation fins are sheet-shaped or column-shaped, and the heat dissipation fins are in a radial or annular array.

Preferably, the aluminum alloy radiator and the aluminum alloy frame are fixed by buckles, the buckles are arranged on the outer wall of the aluminum alloy frame, and a protrusion is provided on the edge of the aluminum alloy radiator, and the protrusion penetrates and protrudes For the aluminum alloy frame, the buckle fixes the aluminum alloy radiator through the fixing protrusion.

Compared with the beneficial effects of the prior art, the heat dissipation or heat exchange devices attached to the photovoltaic panels are in a regular rectangular shape, simple in structure, easy to design, manufacture, and install, and low in cost; because the heat dissipation or heat exchange devices that need to be installed are regular The rectangular shape is simple and convenient to install; photovoltaic module manufacturers can install metal radiators or heat exchangers on the backplane of photovoltaic modules according to user needs; high reliability, simple maintenance, long service life, and good performance Market application value.

Description of drawings

Fig. 1 is a bottom view of the structure of the utility model;

Fig. 2 is the inverted view of the utility model structure along the long side sectional view;

Fig. 3 is the inverted view of the cross-sectional view of the structure of the present invention along the broad side.

detailed description

It should be noted that the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; Improvement or transformation, and all these improvements and transformations should belong to the protection scope of the appended claims of the present utility model.

In order to facilitate the understanding of the utility model, the utility model will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present utility model are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions are used in this specification for the purpose of description only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the utility model in this specification are only for the purpose of describing specific embodiments, and are not used to limit the utility model.

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of photovoltaic cell module structure that is convenient to install heat dissipation cooling device, a plurality of photovoltaic cell sheets 3 are arrayed on the photovoltaic cell assembly 6, and described photovoltaic cell sheet 3 is all fixed on the photovoltaic cell assembly The junction box 1 on the back plate 2 is electrically connected, and a gap is left between the junction box 1 and the photovoltaic cell sheet 3, and the photovoltaic cell assembly 6 is fixed on the photovoltaic cell assembly back plate 2, and the photovoltaic cell assembly back plate 2 is fixed In the aluminum alloy frame 4; the back side of the photovoltaic cell assembly back plate 2 is fixed with an aluminum alloy radiator 5, and a thermal conductive silicone grease layer 7 is arranged between the aluminum alloy radiator 5 and the photovoltaic cell assembly back plate 2, and the aluminum alloy A plurality of cooling fins are arrayed on the alloy radiator 5 .

Preferably, the installation area of the photovoltaic cells 3 is a complete rectangle, and the back of the back plate of the complete rectangular area is fixed with an aluminum alloy radiator 5 or a heat exchanger or a semiconductor thermoelectric power generation sheet.

Preferably, the distance between the junction box 1 and the photovoltaic cells 3 is greater than 1 centimeter and less than 5 centimeters. Further, the distance between the junction box 1 and the photovoltaic cells 3 is 2 centimeters. If the distance is too large, it is easy to waste photovoltaic cells. The module backplane 2 does not save resources, and the high temperature of the photovoltaic cells 3 may affect the junction box 1 if the spacing is too small.

Preferably, the side frame of the aluminum alloy frame 4 close to the junction box 1 is set as a movable frame, and the movable frame is detachably fixed on the aluminum alloy frame 4, for example, both ends of the movable frame are Buckle is set, and a hook matching the buckle is set on the aluminum alloy frame 4. The movable frame is fixed on the aluminum alloy frame 4 through the buckle and the hook, and the movable frame can also be disassembled through the buckle and the hook. Frame, thereby installing aluminum alloy radiator 5 or heat exchanger or semiconductor thermoelectric power generation sheet from movable frame.

Preferably, one end of the movable frame is hinged with the aluminum alloy frame 4, and the other end is fixed on the aluminum alloy frame 4 through a movable buckle, so that the movable frame can be pulled apart from one side through the movable buckle, which is convenient for checking the inner aluminum alloy frame. The radiator 5 is installed or replaced. Further, an elastic device is provided on the inner wall of the movable frame. One end of the elastic device is connected to the movable frame, and the other end is provided with an L-shaped fixing piece. The L-shaped fixing piece acts on the aluminum On the upper edge of the alloy radiator 5, when the movable frame is fixed on the aluminum alloy frame 4 through the movable buckle, the elastic device is in a compressed state, and the aluminum alloy radiator 5 is further fixed by the elastic device, and the installation is convenient.

Preferably, the heat dissipation fins are sheet or columnar, and the heat dissipation fins are in a radial or annular array. Preferably, the heat dissipation fins are arranged in two layers, and the lower layer is a sheet heat dissipation fin, and the sheet heat dissipation The fins are radially distributed, the upper layer is columnar fins, and the columnar fins are in a circular array, the lower layer radial fins form heat dissipation channels, and the upper columnar fins further dissipate heat.

Preferably, the aluminum alloy radiator 5 and the aluminum alloy frame 4 are fixed by a buckle, the buckle is arranged on the outer wall of the aluminum alloy frame 4, and a protrusion is provided on the edge of the aluminum alloy radiator 5, and the protrusion The body penetrates and protrudes from the aluminum alloy frame 4, and the hasp fixes the aluminum alloy radiator 5 by fixing the protrusion.

It should be noted that the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; Improvement or transformation, and all these improvements and transformations should belong to the protection scope of the appended claims of the present utility model.

Claims (8)

1. A photovoltaic cell assembly structure that is convenient for installing a heat dissipation and cooling device, characterized in that a plurality of photovoltaic cell sheets are arrayed on the photovoltaic cell assembly, and the photovoltaic cell sheets are all electrically connected with a junction box fixed on the back plate of the photovoltaic cell assembly , a gap is left between the junction box and the photovoltaic cell sheet, the photovoltaic cell assembly is fixed on the photovoltaic cell assembly back plate, and the photovoltaic cell assembly back plate is fixed in the aluminum alloy frame; the back side of the photovoltaic cell assembly back plate is fixed An aluminum alloy radiator, a thermally conductive silicone grease layer is arranged between the aluminum alloy radiator and the back plate of the photovoltaic cell module, and a plurality of cooling fins are arrayed on the aluminum alloy radiator. 2. According to claim 1, a photovoltaic cell assembly structure that is convenient for installing a heat dissipation and cooling device is characterized in that, the installation area of the photovoltaic cell sheet is a complete rectangle, and the back of the complete rectangular area is fixed with an aluminum alloy for heat dissipation. Device or heat exchanger or semiconductor thermoelectric power generation sheet. 3. According to claim 1, a photovoltaic cell module structure that facilitates the installation of a heat dissipation and cooling device, wherein the distance between the junction box and the photovoltaic cells is greater than 1 cm and less than 5 cm. 4. According to claim 1, a photovoltaic cell module structure that facilitates the installation of a heat dissipation and cooling device is characterized in that, the side frame of the aluminum alloy frame close to the junction box is set as a movable frame, and the movable frame is disassembled fixed on the aluminum frame. 5. According to claim 4, a photovoltaic cell assembly structure that is convenient for installing a heat dissipation and cooling device is characterized in that buckles are arranged at both ends of the movable frame, and buckles matching the buckles are arranged on the aluminum alloy frame hook, and the movable frame is fixed on the aluminum alloy frame through buckles and hooks. 6. According to claim 4, a photovoltaic cell assembly structure that is convenient for installing a heat dissipation and cooling device is characterized in that one end of the movable frame is hinged to the aluminum alloy frame, and the other end is fixed on the aluminum alloy frame through a movable buckle. 7. A photovoltaic cell module structure that is convenient for installing a heat dissipation and cooling device according to claim 1, wherein the heat dissipation fins are in the shape of sheets or columns, and the heat dissipation fins are in radial or annular arrays. 8. According to claim 1, a photovoltaic cell assembly structure that is convenient for installing a heat dissipation and cooling device is characterized in that, the aluminum alloy radiator and the aluminum alloy frame are fixed by a buckle, and the buckle is arranged on the aluminum alloy frame On the outer wall, a protruding body is arranged on the edge of the aluminum alloy radiator, the protruding body penetrates and protrudes from the aluminum alloy frame, and the buckle fixes the aluminum alloy radiator by fixing the protruding body.