Temperature measurement and cooling management system suitable for photovoltaic box

Abstract

The utility model provides a temperature measuring and cooling management system suitable for a photovoltaic box, which belongs to the field of photovoltaic technology, and comprises a photovoltaic box main body and a temperature measuring assembly arranged on the inner wall of the photovoltaic box main body, and the temperature measuring assembly comprises a switching block, a lifting block, a driving rod, a limiting rod, a mounting groove, a temperature sensor main body, a cushion pad and a driving assembly. One end of the limiting rod is inserted into the opening of the inner wall of the switching block, the other end of the limiting rod is fixedly arranged on the inner wall of the photovoltaic box main body, and the mounting grooves are formed in the two sides of the inner wall of the switching block. Through the temperature measuring assembly, two temperature sensor main bodies can be prepared on one switching block and can be replaced quickly after one temperature sensor main body is damaged on the premise that the two temperature sensor main bodies are mutually backed up, the situation that workers spend a lot of time on replacing and overhauling the temperature sensor main bodies is avoided, maintenance work can be processed in a centralized mode, and the maintenance efficiency is improved. And the maintenance complexity is reduced, and the maintenance efficiency is improved to the greatest extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic, and particularly relates to a photovoltaic box and a temperature measurement and cooling management system suitable therefor. Background Technique

[0002] Photovoltaic is a new type of power generation form that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. When sunlight shines on the surface of a solar photovoltaic module, some photons are absorbed by the silicon material, and the energy of the photons is transferred to the silicon atoms, causing the electrons on the silicon atoms to jump and become free electrons. The free electrons continuously accumulate on both sides of the P-N junction and form a potential difference. When an external circuit is connected, current will flow through the circuit to generate a certain output power, thereby generating electrical energy. A photovoltaic power generation system usually consists of solar panels, a DC / AC busbar box, a photovoltaic inverter, metering instruments, a step-up transformer or an AC load, and monitoring equipment. Some are also equipped with energy storage devices such as storage batteries. Photovoltaic power generation has the characteristics of simplicity, no noise, low pollution, simple operation, maintenance and management, and is beneficial to environmental protection.

[0003] With the demand and development of clean energy, as a renewable energy source, photovoltaic power generation is gradually becoming one of the mainstreams of future energy. However, in the process of converting direct current to alternating current in a photovoltaic power generation system, a transformer is required to provide a suitable voltage for transmission, and a special box-type transformer for photovoltaic step-up has emerged. Since the box-type transformers in photovoltaic power stations are generally installed outdoors, in hot summer weather, direct sunlight plus the heat generated by the internal electrical components of the box-type transformer cause the internal UPS and other components of the box-type transformer to overheat, affecting the service life of the equipment insulation material. The existing temperature sensors are difficult to replace quickly after being damaged, which is extremely likely to cause individual special box-type transformers for photovoltaic step-up to overheat and lead to equipment fires. Content of the Utility Model

[0004] The purpose of the utility model is to provide a photovoltaic box and a temperature measurement and cooling management system suitable therefor, aiming to solve the problems raised in the background technique.

[0005] A photovoltaic box includes

[0006] a photovoltaic box main body;

[0007] The temperature measurement component is arranged on the inner wall of the photovoltaic box main body, where: the temperature measurement component includes a switching block, a lifting block, a driving rod, a limiting rod, an installation groove, a temperature sensor main body, a buffer pad and a driving component. One end of the limiting rod is inserted into the inner wall opening of the switching block, and the other end of the limiting rod is fixedly arranged on the inner wall of the photovoltaic box main body. The installation groove is opened on both sides of the inner wall of the switching block. The temperature sensor main body matches the installation groove. One end of the driving rod is rotatably inserted into the outer wall of the switching block, and the other end of the driving rod is rotatably inserted into the outer wall of the lifting block. The buffer pad is adhesively arranged on the outer wall of the temperature sensor main body. The driving component is arranged on the inner wall of the photovoltaic box main body.

[0008] Further, the driving component includes a replacement motor and a lead screw. The lead screw is fixedly arranged at the output end of the replacement motor. The lead screw is threadedly connected to the inner wall of the lifting block.

[0009] Further, a cabinet door is hingedly arranged on the outer wall of the photovoltaic box main body. A cooling fan is embedded at the opening of the outer wall of the photovoltaic box main body. A shielding cover is embedded on the inner wall of the photovoltaic box main body. A laying shell is embedded inside the shielding cover. The laying shell matches the buffer pad.

[0010] A temperature measurement and cooling management system uses any one of the above-mentioned ones applicable to a photovoltaic box, including:

[0011] A front-end module for visually displaying data;

[0012] A back-end module for program execution and data processing;

[0013] A temperature measurement module for wirelessly transmitting data of a passive wireless temperature sensor;

[0014] A cooling device control module for controlling the opening and closing of a cooling device;

[0015] An overhaul module for quickly replacing and overhauling a damaged passive wireless temperature sensor;

[0016] The front-end module is signal-connected to the back-end module. The temperature measurement module is signal-connected to the back-end module. The back-end module is signal-connected to the cooling device control module. The back-end module is signal-connected to the overhaul module.

[0017] Further, the temperature information of the passive wireless temperature sensor is wirelessly transmitted to the temperature measurement module through 433 MHz. The temperature measurement module uploads it to the processor through RS485. The model of the processor is DS / DTU200.

[0018] Furthermore, the processor uploads the data to the backend module through the wireless IoT module. The backend module stores, analyzes, and processes each data at regular intervals in a loop, and finally accesses the front-end module through 4G communication to form a large-scale cable temperature monitoring network.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] Through the temperature measurement component, two temperature sensor bodies can be prepared on one switching block. On the premise of mutual backup, after one temperature sensor body is damaged, it can be quickly replaced, avoiding the staff spending a lot of time on the replacement and maintenance of the temperature sensor body. The maintenance work can be centrally processed, reducing the complexity of maintenance and maximizing the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0022] Figure 1 is a three-dimensional view of the present utility model;

[0023] Figure 2 is a three-dimensional view of the switching block of the present utility model;

[0024] Figure 3 is a three-dimensional view of the lifting block of the present utility model;

[0025] Figure 4 is an architecture diagram of the system of the present utility model.

[0026] In the figures: 1, photovoltaic box body; 2, shielding cover; 3, laying shell; 4, cooling fan; 5, replacement motor; 6, lead screw; 7, switching block; 8, lifting block; 9, driving rod; 10, limiting rod; 11, installation groove; 12, temperature sensor body; 13, buffer pad; 101, cabinet door. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Please refer to Figures 1-4 , the technical solution provided by this embodiment is as follows:

[0031] A photovoltaic box, comprising,

[0032] The photovoltaic box body 1;

[0033] A temperature measurement component, which is arranged on the inner wall of the photovoltaic box body 1, wherein: the temperature measurement component includes a switching block 7, a lifting block 8, a driving rod 9, a limiting rod 10, a mounting groove 11, a temperature sensor body 12, a buffer pad 13 and a driving component. One end of the limiting rod 10 is inserted into the inner wall opening of the switching block 7, and the other end of the limiting rod 10 is fixedly arranged on the inner wall of the photovoltaic box body 1. The mounting groove 11 is opened on both sides of the inner wall of the switching block 7. The temperature sensor body 12 matches the mounting groove 11. One end of the driving rod 9 is rotatably inserted into the outer wall of the switching block 7, and the other end of the driving rod 9 is rotatably inserted into the outer wall of the lifting block 8. The buffer pad 13 is adhesively arranged on the outer wall of the temperature sensor body 12. The driving component is arranged on the inner wall of the photovoltaic box body 1.

[0034] In a specific embodiment of the present utility model, through the temperature measurement component, two temperature sensor bodies 12 can be prepared on a switching block 7. On the premise of being backup to each other, after one of the temperature sensor bodies 12 is damaged, it can be quickly replaced, avoiding the staff spending a lot of time on the replacement and maintenance of the temperature sensor body 12. The maintenance work can be centralized, reducing the complexity of maintenance, maximizing the maintenance efficiency. Install the internal electrical components and the UPS inside the shielding cover 2, start the replacement motor 5, so that the lead screw 6 rotates, driving the lifting block 8 to rise, so that the switching block 7 rotates around the limiting rod 10 under the movement of the driving rod 9, making the temperature sensor body 12 and the buffer pad 13 rotate, so that the buffer pad 13 fits against the inner wall of the shielding cover 2. When the temperature sensor body 12 is damaged, the lead screw 6 rotates, driving the lifting block 8 to descend, so that the switching block 7 rotates in the reverse direction, and the other set of temperature sensor body 12 and the buffer pad 13 rotate, so that the buffer pad 13 fits against the inner wall of the shielding cover 2, completing the switching of the temperature sensor body 12.

[0035] Specifically, the driving component includes a replacement motor 5 and a lead screw 6. The lead screw 6 is fixedly arranged at the output end of the replacement motor 5, and the lead screw 6 is threadedly connected to the inner wall of the lifting block 8.

[0036] In a specific embodiment of the present utility model, the lead screw 6 is threadedly connected to the inner wall of the lifting block 8, which can ensure the accuracy of movement.

[0037] Specifically, a cabinet door 101 is hingedly arranged on the outer wall of the photovoltaic box body 1. A cooling fan 4 is embedded at the opening of the outer wall of the photovoltaic box body 1. A shielding cover 2 is embedded on the inner wall of the photovoltaic box body 1. A laying shell 3 is embedded inside the shielding cover 2, and the laying shell 3 and the buffer pad 13 are mutually matched.

[0038] In a specific embodiment of the present utility model, the laying shell 3 and the buffer pad 13 are mutually matched, which can ensure the stability of heat conduction.

[0039] A temperature measurement and cooling management system, using a photovoltaic box applicable to any one of the above, includes:

[0040] A front-end module for visualizing and displaying data;

[0041] A back-end module for program execution and data processing;

[0042] A temperature measurement module for wirelessly transmitting data of passive wireless temperature sensors;

[0043] A cooling device control module for controlling the opening and closing of the cooling device;

[0044] A maintenance module for quickly replacing and maintaining damaged passive wireless temperature sensors;

[0045] There is a signal connection between the front-end module and the back-end module, a signal connection between the temperature measurement module and the back-end module, a signal connection between the back-end module and the cooling device control module, and a signal connection between the back-end module and the maintenance module.

[0046] In a specific embodiment of the present utility model, the back-end module is a security management system based on the Windows platform.

[0047] Specifically, the temperature information of the passive wireless temperature sensor is wirelessly transmitted to the temperature measurement module through 433 MHz, and the temperature measurement module uploads it to the processor through RS485. The model of the processor is DS / DTU200.

[0048] In a specific embodiment of the present utility model, for the passive wireless temperature sensor and the high-voltage power-on sensor, it is necessary to check whether they can be used normally. Therefore, during installation, multiple quality inspections are required.

[0049] Specifically, the processor uploads the data to the back-end module through the wireless IoT module. The back-end module stores, analyzes, and processes each data regularly and cyclically, and finally accesses the front-end module through 4G communication to form a large-scale cable temperature monitoring network.

[0050] In a specific embodiment of the present utility model, the information output by the back-end module should be chart-type information, which is convenient for the staff to read, and at the same time has an information warning function.

[0051] Working principle:

[0052] Through the temperature measurement component, two temperature sensor bodies 12 can be prepared on a switching block 7. On the premise of mutual backup, after one temperature sensor body 12 is damaged, it can be quickly replaced, avoiding the staff spending a lot of time on the replacement and maintenance of the temperature sensor body 12. The maintenance work can be centralized, reducing the complexity of maintenance, maximizing the maintenance efficiency. Install the internal electrical components and the UPS inside the shielding cover 2, start the replacement motor 5, so that the lead screw 6 rotates, driving the lifting block 8 to rise, so that the switching block 7 rotates around the limit rod 10 under the movement of the driving rod 9, making the temperature sensor body 12 and the buffer pad 13 rotate, so that the buffer pad 13 fits against the inner wall of the shielding cover 2. When the temperature sensor body 12 is damaged, the lead screw 6 rotates, driving the lifting block 8 to descend, making the switching block 7 rotate in the reverse direction, and the other set of temperature sensor bodies 12 and the buffer pad 13 rotate, so that the buffer pad 13 fits against the inner wall of the shielding cover 2, completing the switching of the temperature sensor body 12;

[0053] The temperature information of the passive wireless temperature sensor is transmitted wirelessly to the temperature measurement module via 433 MHz. The temperature measurement module uploads the data to the processor via RS485. The processor processes the data. Subsequently, the processor uploads the data to the backend module via the wireless IoT module. The backend module stores, analyzes, and processes the data at regular intervals in a loop. Finally, it accesses the front-end module via 4G communication to form a large-scale cable temperature monitoring network. When the front-end module determines that a certain temperature sensor body 12 is damaged, the front-end module controls the backend module, causing the backend module to drive the corresponding maintenance module, and the maintenance module drives the replacement motor 5 to start, completing the step of replacing the temperature sensor body 12. When necessary, various sensors such as smoke sensors can also be additionally arranged inside the photovoltaic box body 1 to enhance the parameter collection ability and ensure the real-time monitoring ability;

[0054] When the temperature indeed exceeds the threshold, the backend module drives the corresponding cooling device control module to start the corresponding cooling fan 4 to achieve efficient supply of cooling air flow.

[0055] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic box, characterized in that: include, Photovoltaic box body (1); A temperature measuring component is arranged on the inner wall of a photovoltaic box body (1), wherein: the temperature measuring component comprises a switching block (7), a lifting block (8), a driving rod (9), a limiting rod (10), a mounting groove (11), a temperature sensor body (12), a buffer pad (13) and a driving component, one end of the limiting rod (10) is inserted into the inner wall opening of the switching block (7), the other end of the limiting rod (10) is fixedly arranged on the inner wall of the photovoltaic box body (1), the mounting groove (11) is opened on both sides of the inner wall of the switching block (7), the temperature sensor body (12) and the mounting groove (11) match each other, one end of the driving rod (9) is rotatably inserted into the outer wall of the switching block (7), the other end of the driving rod (9) is rotatably inserted into the outer wall of the lifting block (8), the buffer pad (13) is bonded to the outer wall of the temperature sensor body (12), and the driving component is arranged on the inner wall of the photovoltaic box body (1).

2. A photovoltaic box according to claim 1, characterized in that: The driving assembly comprises a replacement motor (5) and a screw rod (6), wherein the screw rod (6) is fixedly arranged at the output end of the replacement motor (5), and the screw rod (6) is threadedly connected to the inner wall of the lifting block (8).

3. A photovoltaic box according to claim 2, characterized in that: The outer wall of the photovoltaic box body (1) is hingedly provided with a cabinet door (101), a cooling fan (4) is embedded in the opening of the outer wall of the photovoltaic box body (1), a shielding cover (2) is embedded in the inner wall of the photovoltaic box body (1), a layout shell (3) is embedded inside the shielding cover (2), and the layout shell (3) and the buffer pad (13) match each other.

4. A temperature measurement and cooling management system, characterized in that: A photovoltaic box according to any one of claims 1 to 3 is used, comprising: Front-end module, used to visualize data; Backend module, used for program execution and data processing; Temperature measurement module, used for wireless transmission of data from passive wireless temperature sensors; A cooling device control module, used to control the opening and closing of the cooling device; Repair module, used for rapid replacement and repair of damaged passive wireless temperature sensors; The front-end module is signal-connected to the back-end module, the temperature measurement module is signal-connected to the back-end module, the back-end module is signal-connected to the cooling device control module, and the back-end module is signal-connected to the maintenance module.

5. A temperature measurement and cooling management system according to claim 4, characterized in that: The temperature information of the passive wireless temperature sensor is transmitted to the temperature measurement module via 433MHz wireless, and the temperature measurement module is uploaded to the processor via RS485. The model of the processor is DS / DTU200.

6. A temperature measurement and cooling management system according to claim 5, characterized in that: The processor uploads the data to the back-end module through the wireless IoT module. The back-end module stores, analyzes and processes the data in a regular cycle, and finally accesses the front-end module through 4G communication to form a large-scale cable temperature monitoring network.

Images