Photovoltaic module junction box capable of monitoring electric quantity

Abstract

The utility model discloses a photovoltaic module junction box capable of monitoring electric quantity, which comprises a box body, a lithium battery is arranged in the box body, monitoring mechanisms are arranged above the outer side and on the front side of the lithium battery, and each monitoring mechanism comprises an electric quantity display module, an electric quantity grid, a control mainboard, an alarm lamp, a detector and a main controller. And an electric quantity display module is mounted above the outer side of the lithium battery. According to the photovoltaic module junction box capable of monitoring the electric quantity, through the arrangement of the monitoring mechanism, a worker not only can know the electric quantity of a battery from a large screen, but also can check and know the electric quantity of the battery through alarm sound, and through the arrangement of the heat dissipation mechanism, heat in the junction box is dissipated in time, and the risk of high-temperature explosion is avoided; in addition, an installation adjusting mechanism is arranged, so that the junction box installation block can be flexibly adjusted and can be suitable for different installation points, and the installation flexibility of the junction box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, in particular to a photovoltaic module junction box capable of monitoring electric quantity. Background Art

[0002] Photovoltaic module junction boxes are very important in the composition of solar panels. Their main function is to connect the electricity generated by solar cells to external lines. They are usually made of high temperature and corrosion resistant materials. They play an important role in photovoltaic power generation systems. They can protect components and cables, ensure the safe and stable operation of the system, and promote the development of photovoltaic power generation technology. Solar photovoltaic junction boxes are divided into crystalline silicon junction boxes, amorphous silicon junction boxes and curtain wall junction boxes. They are generally composed of three parts: box body, cable and connector. There are many kinds of photovoltaic module junction boxes currently available on the market, but there are still some disadvantages.

[0003] The existing photovoltaic module junction box monitors the power of the power generation components inside the junction box by setting a monitoring module. The staff can only know the power generation of the junction box through the display screen. If the staff is not in front of the display screen, the power display will be ignored. At the same time, the general junction box has a good sealing state, but lacks the function of heat dissipation. Secondly, the installation of the junction box cannot be applied to different installation points. For example, the Chinese utility model patent with the authorization announcement number CN205490400U discloses a photovoltaic module junction box that can monitor power. The monitoring module is set to monitor the power of the power generation components inside the junction box. However, the staff can only know the power generation of the junction box through the display screen. If the staff is not in front of the display screen, the power display will be ignored. At the same time, the general junction box has a good sealing state, but lacks the function of heat dissipation. There are many electronic components inside the junction box. Once high temperature is encountered and heat is not promptly dissipated, there will be a risk of explosion. Secondly, the installation of the junction box cannot be applied to different installation points, and there is a lack of flexible adjustment of the installation. Therefore, we propose a photovoltaic module junction box that can monitor power. In order to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a photovoltaic module junction box capable of monitoring power, so as to solve the problem that the current photovoltaic module junction box capable of monitoring power proposed in the above background technology is provided with a monitoring module to monitor the power of the power generation components inside the junction box, but the staff can only know the power generation status of the junction box through the display screen. If the staff is not in front of the display screen, the display of power will be ignored. Meanwhile, the junction box is generally well sealed, but lacks the function of heat dissipation. There are many electronic components inside the junction box. Once high temperature is encountered and heat is not dissipated in time, there is a risk of explosion. Secondly, the installation of the junction box cannot be applied to different installation points, and there is a lack of flexible adjustment of the installation.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a photovoltaic module junction box capable of monitoring electric quantity, comprising:

[0006] A box body, wherein a lithium battery is arranged inside the box body;

[0007] Also includes:

[0008] A monitoring mechanism is arranged on the upper outer side and the front side of the lithium battery, wherein the monitoring mechanism includes a power display module, a power grid, a control mainboard, an alarm light, a detector and a main controller; a power display module is installed on the upper outer side of the lithium battery, and a control mainboard is fixedly connected to the front side of the lithium battery, and an alarm light is arranged on the upper middle part of the control mainboard, and a power grid is arranged on the upper part of the power display module;

[0009] A box cover, wherein the interior of the box cover is symmetrically provided with a heat dissipation mechanism, wherein the heat dissipation mechanism includes heat dissipation holes, a filter, a heat sink, an inclined baffle and a rain drain groove, and the interior of the box cover is symmetrically provided with heat dissipation holes, and a filter is snap-fitted and installed inside the heat dissipation holes, and a heat sink is provided below the filter.

[0010] Preferably, cables are connected to the front of the left and right sides of the lithium battery, and fixing buckles are provided above the cables in front of the left and right sides of the lithium battery, and the fixing buckles are snap-connected with the box body.

[0011] Preferably, a detector is installed on the upper left side of the control main board, and a main controller is installed on the upper right side of the control main board.

[0012] Preferably, a box cover is installed on the top of the box body, and the upper middle portion of the box cover is hollow, and a transparent cover is installed on the upper middle portion of the box cover.

[0013] Preferably, an oblique baffle is fixedly installed symmetrically on the upper side of the box cover, and the oblique baffle is located above the heat dissipation hole, and rain drain grooves are opened at equal distances above the inner part of the oblique baffle.

[0014] Preferably, mounting grooves are symmetrically provided at the lower part of the interior of the box body, and fixing rods are fixedly installed inside the mounting grooves.

[0015] Preferably, fixing holes are provided at equal intervals inside the fixing rod, and a mounting block is slidably mounted on the upper outer side of the fixing rod.

[0016] Preferably, the mounting block and the fixing hole are fixed by a threaded rod, and a mounting hole is provided inside the mounting block.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the photovoltaic module junction box capable of monitoring power, by providing a monitoring mechanism, enables the staff to not only understand the power of the battery from the large screen, but also understand the power of the battery through the alarm sound and self-checking, and at the same time, a heat dissipation mechanism is provided to dissipate the heat inside the junction box in time to avoid the risk of high-temperature explosion, and an installation adjustment mechanism is provided to enable the junction box installation block to be flexibly adjusted, so that it can be applied to different installation points, thereby improving the flexibility of the junction box installation;

[0018] 1. A power display module, a power grid, a control mainboard and an alarm light are provided. A lithium battery is installed inside the box body, and a power display module is provided above the lithium battery. The power display module is connected to the positive and negative electrodes of the lithium battery to display the power of the lithium battery. Secondly, a box cover is installed above the box body, and the middle part of the box cover is hollow. A transparent cover is installed above the hollow middle part of the box cover. The power state of the power grid can be observed at any time through the transparent cover. At the same time, a control mainboard is connected in front of the lithium battery, and an alarm light is installed above the middle part of the control mainboard. A detector and a main controller are installed above both sides. When the power of the lithium battery is too low, the control mainboard will be induced by the low power of the lithium battery through the connection with the control mainboard, thereby issuing an alarm sound and light, so that the staff can hear the sound immediately. Secondly, the detector can monitor the power of the lithium battery and transmit the information to the main controller in time. The main controller then transmits the collected information to the computer display screen of the studio where the staff is located through a signal transmitter, so that the staff can not only understand the power of the lithium battery from the large screen, but also understand the power of the lithium battery through the alarm sound and their own inspection;

[0019] 2. Heat dissipation holes, filters, heat sinks and oblique baffles are provided. A large amount of heat is generated by the operation of the electronic components inside the box body, that is, heat dissipation holes are symmetrically opened on the left and right sides of the inner part of the box cover above the box body, and heat sinks are installed inside the heat dissipation holes. The heat sinks can accelerate the discharge of heat inside the box body to avoid the risk of high-temperature explosion. At the same time, a filter is provided inside the heat dissipation hole. The filter is located above the heat sink and can prevent dust from entering the box body from the inside of the heat dissipation hole. In addition, an oblique baffle is provided above the heat dissipation hole, and the oblique baffle can cover the heat dissipation hole. Secondly, multiple rain drain grooves are provided at equal distances inside the oblique baffle. The setting of the oblique baffle can make the rain drain along the rain drain groove inside the oblique baffle in rainy weather and will not enter the inside of the box body;

[0020] 3. A fixing rod, a fixing hole, a mounting block and a threaded rod are provided. A mounting groove is provided at the front and back of the lower interior of the box body, a fixing rod is installed inside the mounting groove, a mounting block is slidingly provided on the outer side of the fixing rod, and a plurality of fixing holes are provided at equal distances inside the fixing rod. The mounting block can slide left and right on the fixing rod to a suitable installation position, and then the fixing hole and the mounting block are fixed by the threaded rod. Secondly, a mounting hole is provided inside the mounting block. After the position of the mounting block is adjusted, a bolt is inserted into the mounting hole to fix it to the installation point. The mounting block can be flexibly adjusted so that it can be applied to different installation points, thereby improving the flexibility of the box body installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a perspective structural diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0023] Figure 3 This is a top view of the structure of the utility model when the transparent cover is opened;

[0024] Figure 4 This is a schematic diagram of the top view structure of the utility model when the transparent cover is closed;

[0025] Figure 5 This is a perspective structural diagram of the connection between the mounting slot, the fixing rod and the fixing hole of the utility model;

[0026] Figure 6 It is a side structural schematic diagram of the utility model.

[0027] In the figure: 1. box body; 2. lithium battery; 3. power display module; 4. power grid; 5. fixing buckle; 6. control main board; 7. alarm light; 8. detector; 9. main controller; 10. box cover; 11. transparent cover; 12. heat dissipation hole; 13. filter; 14. heat sink; 15. inclined baffle; 16. rain gutter; 17. mounting slot; 18. fixing rod; 19. fixing hole; 20. mounting block; 21. threaded rod; 22. mounting hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6The utility model provides a technical solution: a photovoltaic module junction box capable of monitoring power, comprising: a box body 1, a lithium battery 2, a power display module 3, a power grid 4, a fixing buckle 5, a control main board 6, an alarm light 7, a detector 8, a main controller 9, a box cover 10, a transparent cover 11, a heat dissipation hole 12, a filter 13, a heat sink 14, an inclined baffle 15, a rain drain trough 16, a mounting groove 17, a fixing rod 18, a fixing hole 19, a mounting block 20, a threaded rod 21 and a mounting hole 22;

[0030] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, a lithium battery 2 is installed inside the box body 1, and cables are connected to the front of the left and right sides of the lithium battery 2. At the same time, a fixing buckle 5 is arranged above the cable, and the fixing buckle 5 is snap-connected with the box body 1, so that the cable can be installed more firmly inside the box body 1. In addition, a power display module 3 is arranged above the lithium battery 2. The power display module 3 is connected to the positive and negative poles of the lithium battery 2, and can display the power of the lithium battery 2. The power will be displayed on the power grid 4 above the power display module 3, and the power grid 4 is divided into four gears. Secondly, a box cover 10 is installed above the box body 1, and the middle part of the box cover 10 is hollow. A transparent cover 11 is installed above the hollow middle part of the box cover 10, and the power status of the power grid 4 can be observed at any time through the transparent cover 11. A control mainboard 6 is connected to the front of the battery 2, an alarm light 7 is installed above the middle of the control mainboard 6, and a detector 8 and a main controller 9 are installed above both sides of the control mainboard 6. When the power of the lithium battery 2 is too low, the control mainboard 6 will be sensed by the low power of the lithium battery 2 through the connection with the control mainboard 6, and an alarm sound will be issued, so that the staff can hear the sound immediately. Secondly, the detector 8 can monitor the power of the lithium battery 2 and transmit the information to the main controller 9 in time. The main controller 9 then transmits the collected information to the computer display screen of the studio where the staff is located through a signal transmitter, that is, in this way, the staff can not only understand the power of the lithium battery 2 from the large screen, but also understand the power of the lithium battery 2 through the alarm sound and their own inspection;

[0031] like Figure 3 , Figure 4 and Figure 6As shown in , a large amount of heat is generated by the operation of the electronic components inside the box body 1, that is, heat dissipation holes 12 are symmetrically opened on the left and right sides of the inside of the box cover 10 above the box body 1, and heat sinks 14 are installed inside the heat dissipation holes 12. The heat sink 14 can accelerate the discharge of heat inside the box body 1 to avoid the risk of high-temperature explosion. At the same time, a filter 13 is provided inside the heat dissipation hole 12, and the filter 13 is located above the heat dissipation fins 14, which can prevent dust from entering the box body 1 from the inside of the heat dissipation hole 12. In addition, an inclined baffle 15 is provided above the heat dissipation hole 12, and the inclined baffle 15 can cover the heat dissipation hole 12. Secondly, a plurality of rain drain grooves 16 are equidistantly provided above the inside of the inclined baffle 15. The setting of the inclined baffle 15 can make it possible for rain to be discharged along the rain drain grooves 16 inside the inclined baffle 15 in rainy weather, and will not enter the inside of the box body 1, effectively avoiding the situation of short circuit inside the box body 1.

[0032] like Figure 2 , Figure 5 and Figure 6 As shown in the figure, a mounting groove 17 is opened at the front and back of the lower inner part of the box body 1, a fixing rod 18 is installed inside the mounting groove 17, a mounting block 20 is slidably set on the outer side of the fixing rod 18, and a plurality of fixing holes 19 are opened at equal distances inside the fixing rod 18. The mounting block 20 can slide left and right on the fixing rod 18 to a suitable installation position, and then the fixing hole 19 and the mounting block 20 are fixed by the threaded rod 21. Secondly, a mounting hole 22 is opened inside the mounting block 20. After the position of the mounting block 20 is adjusted, a bolt is inserted into the mounting hole 22 to fix it to the installation point. The mounting block 20 can be flexibly adjusted so that it can be applied to different installation points, thereby improving the flexibility of the installation of the box body 1.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic module junction box capable of monitoring power, comprising: A box body (1), wherein a lithium battery (2) is arranged inside the box body (1); It is characterized by further comprising: A monitoring mechanism is arranged on the upper side and the front side of the outer side of the lithium battery (2), wherein the monitoring mechanism comprises a power display module (3), a power grid (4), a control mainboard (6), an alarm light (7), a detector (8) and a main controller (9); the power display module (3) is installed on the upper side of the outer side of the lithium battery (2), the control mainboard (6) is fixedly connected to the front side of the lithium battery (2), an alarm light (7) is arranged on the upper middle part of the control mainboard (6), and a power grid (4) is arranged on the upper side of the power display module (3); A box cover (10) is provided with a heat dissipation mechanism symmetrically disposed inside the box cover (10), wherein the heat dissipation mechanism comprises a heat dissipation hole (12), a filter screen (13), a heat dissipation fin (14), an inclined baffle (15) and a rain drain groove (16); the heat dissipation holes (12) are symmetrically disposed inside the box cover (10), a filter screen (13) is snap-fitted and installed inside the heat dissipation hole (12), and a heat dissipation fin (14) is disposed below the filter screen (13).

2. A photovoltaic module junction box capable of monitoring electric quantity according to claim 1, characterized in that: Cables are connected to the front of the left and right sides of the lithium battery (2), and fixing buckles (5) are arranged above the cables in front of the left and right sides of the lithium battery (2), and the fixing buckles (5) are snap-connected with the box body (1).

3. A photovoltaic module junction box capable of monitoring electric quantity according to claim 1, characterized in that: A detector (8) is installed on the upper left side of the control main board (6), and a main controller (9) is installed on the upper right side of the control main board (6).

4. A photovoltaic module junction box capable of monitoring electric quantity according to claim 2, characterized in that: A box cover (10) is installed above the box body (1), and the upper middle portion of the box cover (10) is in a hollow state, and a transparent cover (11) is installed above the upper middle portion of the box cover (10).

5. A photovoltaic module junction box capable of monitoring electric quantity according to claim 4, characterized in that: An oblique baffle (15) is fixedly installed symmetrically on the upper side of the box cover (10), and the oblique baffle (15) is located above the heat dissipation hole (12), and rain drain grooves (16) are opened at equal distances on the upper side of the inner part of the oblique baffle (15).

6. A photovoltaic module junction box capable of monitoring electric quantity according to claim 4, characterized in that: The lower part of the box body (1) is provided with a mounting groove (17) symmetrically at the front and rear sides, and a fixing rod (18) is fixedly installed inside the mounting groove (17).

7. A photovoltaic module junction box capable of monitoring electric quantity according to claim 6, characterized in that: The fixing rod (18) is provided with fixing holes (19) at equal intervals inside, and a mounting block (20) is slidably mounted on the upper outer side of the fixing rod (18).

8. A photovoltaic module junction box capable of monitoring electric quantity according to claim 7, characterized in that: The mounting block (20) and the fixing hole (19) are fixed by a threaded rod (21), and a mounting hole (22) is provided inside the mounting block (20).

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