Photovoltaic grid-connected cabinet with high temperature early warning function

Abstract

The utility model belongs to the technical field of photovoltaic grid-connected cabinets, in particular to a photovoltaic grid-connected cabinet with a high-temperature early warning function, which comprises a photovoltaic grid-connected cabinet body, a mounting plate is fixedly connected inside the photovoltaic grid-connected cabinet body, a plurality of mounting frames are fixedly connected between the mounting plate and one side of the photovoltaic grid-connected cabinet body, and the mounting frames are fixedly connected with the photovoltaic grid-connected cabinet body. An expansion air bag is fixedly connected to the interior of the mounting frame, and a [-shaped supporting frame is fixedly connected to the outer side of the expansion air bag; on one hand, a high-temperature early warning prompt can be sent to an external worker through cooperation of an opening and closing plate and an alarm button, and on the other hand, through cooperation with a connecting plate, when the internal environment of the photovoltaic grid-connected cabinet body is in a high-temperature state, the flowing space for gas exchange between the interior and the exterior of the whole photovoltaic grid-connected cabinet body is increased, and the working efficiency of the photovoltaic grid-connected cabinet body is improved. Autonomous heat dissipation of the photovoltaic grid-connected cabinet body in an internal high-temperature environment is facilitated, and internal elements in the photovoltaic grid-connected cabinet body are prevented from being in the high-temperature environment for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic grid-connected cabinets, and particularly relates to a photovoltaic grid-connected cabinet with a high-temperature warning function. Background Art

[0002] A photovoltaic grid-connected cabinet is a power interface device used in a solar photovoltaic power station. Its main function is to integrate the electric energy generated by a photovoltaic power generation system into the power grid and provide a safe and stable power output. There are many working components installed inside the photovoltaic grid-connected cabinet, and a large amount of heat is generated during the operation of the working components, resulting in a relatively high environmental temperature inside the cabinet. When the working components are continuously in a high-temperature environment, it will cause damage to the internal working parts or accelerate the aging of the internal parts of the working components. Content of the Utility Model

[0003] The utility model provides a photovoltaic grid-connected cabinet with a high-temperature warning function, which has the characteristics of being able to give an alarm when the inside of the photovoltaic grid-connected cabinet body is in a high-temperature state, and at the same time being able to assist the photovoltaic grid-connected cabinet body in self-cooling in a high-temperature environment inside, so as to prevent the internal components in the photovoltaic grid-connected cabinet body from being in a high-temperature environment for a long time.

[0004] The utility model provides the following technical solution: A photovoltaic grid-connected cabinet with a high-temperature warning function, including a photovoltaic grid-connected cabinet body. An installation plate is fixedly connected inside the photovoltaic grid-connected cabinet body. A plurality of installation frames are fixedly connected between the installation plate and one side of the photovoltaic grid-connected cabinet body. An expansion airbag is fixedly connected inside the installation frame. A "C"-shaped support frame is fixedly connected to the outside of the expansion airbag. An opening and closing plate is fixedly connected to the top of the "C"-shaped support frame. A one-way valve is embedded in the installation plate, and the one-way valve is communicated with the inside of the installation frame. An alarm button is fixedly connected to the inner cavity of the installation frame. A connecting plate is hinged to the outside of the photovoltaic grid-connected cabinet body, and the position of the connecting plate corresponds to the position of the installation frame. An alarm button is fixedly connected to one side of the inner cavity of the installation frame, and the position of the alarm button corresponds to the position of the opening and closing plate.

[0005] Among them, a plurality of groups of connecting seats are symmetrically and fixedly connected inside the installation plate, and the one-way valve is installed inside the installation plate through the connecting seats.

[0006] Among them, a plurality of mounting seats are fixedly connected to the front side of the installation plate, and mounting grooves are formed inside the mounting seats.

[0007] Among them, a dust-proof net is inserted into the mounting groove, and a limiting plate is fixedly connected to the top of the dust-proof net.

[0008] Among them, a number of first ventilation holes are opened inside the connecting plate, and a number of second ventilation holes are opened on the rear side of the photovoltaic grid-connected cabinet body, and the positions of the second ventilation holes correspond to the positions of the connecting plate.

[0009] The beneficial effects of the present utility model are as follows: With the mutual cooperation of the expansion airbag, the "C"-shaped support frame, the opening and closing plate, the alarm button, and the connecting plate, a component for warning and cooling the internal environment of the photovoltaic grid-connected cabinet body when it is in a high-temperature state is formed. On the one hand, it can send a high-temperature warning prompt to external staff through the cooperation of the opening and closing plate and the alarm button. On the other hand, through the cooperation with the connecting plate, when the internal environment of the photovoltaic grid-connected cabinet body is in a high-temperature state, the flowing space for gas exchange between the inside and the outside of the entire photovoltaic grid-connected cabinet body is increased, which helps to assist the photovoltaic grid-connected cabinet body in self-cooling in a high-temperature internal environment and avoid the internal components in the photovoltaic grid-connected cabinet body from being in a high-temperature environment for a long time.

[0010] Parts not involved in the device are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic side sectional structure diagram of the present utility model;

[0012] Figure 2 It is a schematic side sectional structure diagram of the expansion airbag after expansion in the present utility model;

[0013] Figure 3 For the present utility model Figure 1 The enlarged detail diagram of part A;

[0014] Figure 4 It is a schematic front sectional structure diagram of the present utility model.

[0015] In the figure: 1, photovoltaic grid-connected cabinet body; 2, mounting plate; 21, mounting frame; 3, expansion airbag; 31, "C"-shaped support frame; 32, opening and closing plate; 33, one-way valve; 34, connecting seat; 35, dust-proof net; 351, limiting plate; 36, mounting seat; 361, mounting groove; 4, connecting plate; 41, first ventilation hole; 42, second ventilation hole; 5, alarm button. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Please refer to Figure 1-Figure 4, the present utility model provides the following technical solutions: A photovoltaic grid-connected cabinet with a high-temperature warning function, including a photovoltaic grid-connected cabinet body 1. Inside the photovoltaic grid-connected cabinet body 1, there is a fixed connection with a mounting plate 2. Between the mounting plate 2 and one side of the photovoltaic grid-connected cabinet body 1, there are fixedly connected several mounting frames 21. Inside the mounting frame 21, there is a fixed connection with an expansion airbag 3. On the outer side of the expansion airbag 3, there is a fixed connection with a "C"-shaped support frame 31. On the top of the "C"-shaped support frame 31, there is a fixed connection with an opening and closing plate 32. Inside the mounting plate 2, there is an embedded one-way valve 33, and the one-way valve 33 is communicated with the inside of the mounting frame 21. Inside the cavity of the mounting frame 21, there is a fixed connection with an alarm button 5. On the outer side of the photovoltaic grid-connected cabinet body 1, there is a hinged connection with a connecting plate 4, and the position of the connecting plate 4 corresponds to the position of the mounting frame 21. On one side of the inner cavity of the mounting frame 21, there is a fixed connection with an alarm button 5, and the position of the alarm button 5 corresponds to the position of the opening and closing plate 32.

[0017] In this implementation scheme: The photovoltaic grid-connected cabinet body 1 is the main body of the entire cabinet. The mounting plate 2 located inside the photovoltaic grid-connected cabinet body 1 is used for the mounting frame 21. The mounting frame 21 located between the mounting plate 2 and the photovoltaic grid-connected cabinet body 1 is used to provide a connection carrier for the expansion airbag 3. An inert gas that preheats and expands is filled inside the expansion airbag 3. The "C"-shaped support frame 31 located outside the expansion airbag 3 plays a supporting role outside the expansion airbag 3 and is also used to provide a connection carrier for the opening and closing plate 32. The one-way valve 33 installed inside the mounting plate 2 is used to provide a one-way flow channel for the gas inside the photovoltaic grid-connected cabinet body 1 to flow into the mounting frame 21. The alarm button 5 located in the mounting frame 21 is the alarm component in the entire cabinet. During the use of the entire cabinet, the heat generated by each working part installed inside the cabinet during the working process is dissipated into the air inside the photovoltaic grid-connected cabinet body 1, which simultaneously causes the internal environment temperature of the entire photovoltaic grid-connected cabinet body 1 to rise. At the same time, the air temperature inside the mounting frame 21 also rises. When the internal environment temperature of the mounting frame 21 rises, the inert gas in the expansion airbag 3 inside the mounting frame 21 expands when heated, driving the volume of the entire expansion airbag 3 to expand. After the overall volume of the expansion airbag 3 expands and increases, the outside of the expansion airbag 3 moves towards the outside of the mounting frame 21, and during the movement, it drives the opening and closing plate 32 to move synchronously. When the volume of the expansion airbag 3 expands to a large enough extent, the opening and closing plate 32 squeezes and touches the alarm button 5 in the mounting frame 21, and activates the alarm function of the alarm button 5. At this time, a high-temperature warning prompt can be sent to the external staff through the alarm button 5. In addition, after the outside of the expansion airbag 3 moves to the outside of the mounting frame 21, it can push the connecting plate 4 outside the photovoltaic grid-connected cabinet body 1 to flip. After the connecting plate 4 flips, the flow channel on one side of the entire mounting frame 21 is increased, which can accelerate the diffusion of the gas in the mounting frame 21 to the outside, helping to assist in cooling the high-temperature environment inside the photovoltaic grid-connected cabinet body 1. And during the expansion of the expansion airbag 3, on the one hand, a high-temperature warning prompt can be sent to the external staff through the cooperation of the opening and closing plate 32 and the alarm button 5. On the other hand, through the cooperation with the connecting plate 4, when the internal environment of the photovoltaic grid-connected cabinet body 1 is in a high-temperature state, the flowing space for gas exchange between the inside and outside of the entire photovoltaic grid-connected cabinet body 1 is increased, which helps to assist the photovoltaic grid-connected cabinet body 1 in self-cooling in the internal high-temperature environment and prevents the internal components in the photovoltaic grid-connected cabinet body 1 from being in a high-temperature environment for a long time.

[0018] A number of groups of connecting seats 34 are symmetrically and fixedly connected inside the mounting plate 2, and the one-way valve 33 is installed inside the mounting plate 2 through the connecting seats 34; among them, the connecting seats 34 are used to provide a connection carrier between the one-way valve 33 and the mounting plate 2.

[0019] A plurality of mounting seats 36 are fixedly connected to the front side of the mounting plate 2, and a mounting groove 361 is opened inside the mounting seat 36, a dustproof net 35 is inserted inside the mounting groove 361, and a limiting plate 351 is fixedly connected to the top of the dustproof net 35; wherein the mounting seat 36 is used to provide a carrier for the installation of the dustproof net 35, the mounting groove 361 is used to provide a space for inserting the dustproof net 35, and the limiting plate 351 is used to facilitate the staff to hold the dustproof net 35 when replacing it.

[0020] A plurality of first ventilation holes 41 are provided inside the connecting plate 4, and a plurality of second ventilation holes 42 are provided on the rear side of the photovoltaic grid-connected cabinet body 1, and the positions of the second ventilation holes 42 correspond to the positions of the connecting plate 4; wherein the first ventilation holes 41 and the second ventilation holes 42 both provide connecting spaces for gas exchange between the inside and outside of the photovoltaic grid-connected cabinet body 1.

[0021] The working principle and use process of the utility model: during the use of the entire cabinet, the heat generated by the various working parts installed inside the cabinet during the working process is dissipated into the air inside the photovoltaic grid-connected cabinet body 1, causing the internal ambient temperature of the entire photovoltaic grid-connected cabinet body 1 to rise, and the air temperature inside the installation frame 21 rises at the same time. When the internal ambient temperature of the installation frame 21 rises, the inert gas in the expansion airbag 3 located in the installation frame 21 expands when it encounters heat, driving the volume of the entire expansion airbag 3 to expand. After the overall volume of the expansion airbag 3 expands and increases, the outer side of the expansion airbag 3 moves toward the outside of the installation frame 21, and during the movement, it drives the opening and closing plate 32 to move synchronously. When the volume of the expansion airbag 3 expands to a sufficient When the temperature is high, the opening and closing plate 32 squeezes and touches the alarm button 5 in the installation frame 21, and turns on the alarm button 5. At this time, a high temperature warning prompt can be issued to the external staff through the alarm button 5, and the internal high temperature of the photovoltaic grid-connected cabinet body 1 can be cooled down by the staff. In addition, after the outer side of the expansion airbag 3 moves to the outside of the installation frame 21, it can push the connecting plate 4 on the outside of the photovoltaic grid-connected cabinet body 1 to flip over, and after the connecting plate 4 is flipped, the flow channel on one side of the entire installation frame 21 is enlarged. At this time, the high-temperature gas in the photovoltaic grid-connected cabinet body 1 can be exchanged with the external gas through the second vent 42, which can accelerate the diffusion of the gas in the installation frame 21 to the outside, and help to assist in cooling the high-temperature environment in the photovoltaic grid-connected cabinet body 1.

Claims

1. A photovoltaic grid-connected cabinet with a high temperature warning function, comprising a photovoltaic grid-connected cabinet body (1), characterized in that: An installation plate (2) is fixedly connected inside the photovoltaic grid-connected cabinet body (1). A plurality of installation frames (21) are fixedly connected between the installation plate (2) and one side of the photovoltaic grid-connected cabinet body (1). An expansion airbag (3) is fixedly connected inside the installation frame (21). An "L"-shaped support frame (31) is fixedly connected to the outer side of the expansion airbag (3). An opening and closing plate (32) is fixedly connected to the top of the "L"-shaped support frame (31). A one-way valve (33) is embedded in the installation plate (2), and the one-way valve (33) is communicated with the inside of the installation frame (21). An alarm button (5) is fixedly connected in the inner cavity of the installation frame (21). A connecting plate (4) is hinged to the outer side of the photovoltaic grid-connected cabinet body (1), and the position of the connecting plate (4) corresponds to the position of the installation frame (21). An alarm button (5) is fixedly connected to one side of the inner cavity of the installation frame (21), and the position of the alarm button (5) corresponds to the position of the opening and closing plate (32).

2. The photovoltaic grid-connected cabinet with high temperature warning function according to claim 1, characterized in that: A plurality of groups of connecting seats (34) are symmetrically and fixedly connected inside the installation plate (2), and the one-way valve (33) is installed inside the installation plate (2) through the connecting seats (34).

3. The photovoltaic grid-connected cabinet with high temperature warning function according to claim 1, characterized in that: A plurality of mounting seats (36) are fixedly connected to the front side of the installation plate (2), and an installation groove (361) is opened inside the mounting seat (36).

4. The photovoltaic grid-connected cabinet with high temperature warning function according to claim 3 is characterized in that: A dust-proof net (35) is inserted into the installation groove (361), and a limiting plate (351) is fixedly connected to the top of the dust-proof net (35).

5. The photovoltaic grid-connected cabinet with high temperature warning function according to claim 1, characterized in that: A plurality of first ventilation holes (41) are opened in the connecting plate (4), and a plurality of second ventilation holes (42) are opened on the rear side surface of the photovoltaic grid-connected cabinet body (1), and the position of the second ventilation holes (42) corresponds to the position of the connecting plate (4).

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