Data collector device of photovoltaic inverter

Abstract

The utility model belongs to the technical field of photovoltaic inverters, and particularly relates to a photovoltaic inverter data collector device, which comprises a waterproof shell, a PCB (printed circuit board) is assembled in the waterproof shell, the upper end of the waterproof shell is in threaded connection with an aviation terminal female end electrically connected with the PCB, the lower end of the waterproof shell is open, and the upper end of the waterproof shell is in threaded connection with an aviation terminal female end electrically connected with the PCB. A bottom cover is assembled at the position, close to the opening, in the waterproof shell, the bottom cover is provided with an SMA connector electrically connected with the PCB, the SMA connector is in threaded connection with an antenna located on the outer side of the waterproof shell, the antenna is electrically connected with the SMA connector, an expansion type protruding edge strip is assembled on the side edge of the bottom cover, and a groove is formed in the position, close to the opening, of the inner wall of the waterproof shell. The expansion type protruding edge strips can expand in the grooves. According to the utility model, the gap between the bottom cover and the waterproof housing can be effectively reduced, the waterproof sealing performance of the lower part of the waterproof housing is further improved, and moisture flowing into the waterproof housing through the lower part of the waterproof housing is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic inverters, and in particular relates to a photovoltaic inverter data collector device. Background Art

[0002] The data acquisition stick is an important part of the photovoltaic inverter. It can collect real-time data of the photovoltaic inverter and remotely monitor the operating status to ensure the safe operation of the photovoltaic inverter.

[0003] For example, a Chinese patent with the authorization announcement number CN211606405U discloses a data acquisition stick and an inverter, wherein the data acquisition stick body includes an aviation terminal female end, a PCB board, an SMA connector, an antenna, and a waterproof shell, wherein the bottom cover is buckled on the shell from the bottom. For a vertically placed data acquisition stick, water will not flow upward from the bottom and enter the shell, thereby greatly improving the waterproof performance and extending the service life;

[0004] However, since there is still a certain gap between the bottom cover and the shell, some moisture may still enter the waterproof housing through the gap between the bottom cover and the shell, affecting the waterproof sealing performance of the lower part of the waterproof housing. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic inverter data collector device, which can effectively reduce the gap between the bottom cover and the waterproof shell, further improve the waterproof sealing performance of the lower part of the waterproof shell, and reduce the moisture that flows into the interior of the waterproof shell through the lower part of the waterproof shell.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A photovoltaic inverter data collector device comprises a waterproof shell, wherein a PCB board is installed inside the waterproof shell, an aviation terminal female end electrically connected to the PCB board is threadedly connected to the upper end of the waterproof shell, the lower end of the waterproof shell is open, a bottom cover is installed near the opening inside the waterproof shell, an SMA connector electrically connected to the PCB board is installed on the bottom cover, an antenna located outside the waterproof shell is threadedly connected to the SMA connector, and the antenna is electrically connected to the SMA connector, an expansion type raised edge strip is installed on the side of the bottom cover, a groove is provided on the inner wall of the waterproof shell near the opening, and the expansion type raised edge strip can be expanded inside the groove.

[0008] Furthermore, the expansion type raised edge strip includes two edge strip bodies fixedly connected to the side of the bottom cover, an elastic sleeve is installed between the ends of the two edge strip bodies away from the bottom cover, and the edge strip bodies, the elastic sleeve and the side of the bottom cover form a filling cavity, and the interior of the filling cavity is filled with a medium.

[0009] Furthermore, the ends of the two edge strips away from the bottom cover are bent towards each other.

[0010] Furthermore, a shaping portion is provided at the middle position of the groove.

[0011] Furthermore, a storage cavity and a connecting hole for connecting the storage cavity and the filling cavity are provided inside the bottom cover, a push plate is slidably connected inside the storage cavity, the medium is filled in the space inside the storage cavity between the connecting hole and the push plate, and a return spring is installed inside the storage cavity and at the end of the push plate away from the connecting hole.

[0012] Furthermore, a pull rope is connected to the push plate, a small hole is provided at one end of the storage cavity away from the communicating hole, and one end of the pull rope away from the push plate extends to the outside of the waterproof shell through the small hole.

[0013] The technical effects achieved by the utility model are:

[0014] A photovoltaic inverter data collector device of the utility model fills the gap between the bottom cover and the groove by arranging an expansion-type raised edge strip on the side of the bottom cover, thereby effectively reducing the gap between the bottom cover and the waterproof shell, further improving the waterproof sealing performance of the lower part of the waterproof shell, and reducing moisture that flows into the interior of the waterproof shell through the lower part of the waterproof shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0017] Figure 3 The utility model Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 It is a schematic diagram of the cutaway structure of the bottom cover of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Waterproof shell; 2. PCB board; 3. Aviation terminal female end; 4. Bottom cover; 5. SMA connector; 6. Antenna; 7. Expanded raised edge strip; 8. Groove; 9. Shaping part; 10. Edge strip body; 11. Elastic sleeve; 12. Storage cavity; 13. Connecting hole; 14. Push plate; 15. Rebound spring; 16. Pull rope. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0022] like Figure 1-2 As shown, a photovoltaic inverter data collector device includes a waterproof housing 1, a PCB board 2 is assembled inside the waterproof housing 1, and an aviation terminal female end 3 electrically connected to the PCB board 2 is threadedly connected to the upper end of the waterproof housing 1. The aviation terminal female end 3 can be directly connected to the photovoltaic inverter, so that the data of the photovoltaic inverter can be collected;

[0023] The lower end of the waterproof housing 1 is open, and a bottom cover 4 is installed near the opening inside the waterproof housing 1. An SMA connector 5 electrically connected to the PCB board 2 is installed on the bottom cover 4. The SMA connector 5 is threadedly connected to an antenna 6 located on the outside of the waterproof housing 1, and the antenna 6 is electrically connected to the SMA connector 5.

[0024] At the same time, in order to improve the waterproof performance of the lower part of the waterproof shell 1 and further reduce the moisture that flows into the interior of the waterproof shell 1 through the lower part of the waterproof shell 1, an expansion type raised edge strip 7 is installed on the side of the bottom cover 4, and a groove 8 is provided on the inner wall of the waterproof shell 1 near the opening. The expansion type raised edge strip 7 can expand inside the groove 8 to fill the gap between the bottom cover 4 and the groove 8, thereby effectively reducing the gap between the bottom cover 4 and the waterproof shell 1, and further improving the waterproof sealing performance of the lower part of the waterproof shell 1.

[0025] Among them, the inflatable raised edge strip 7 can be a latex airbag ring, which can be expanded after being inflated. In order to enable the inflatable raised edge strip 7 to be stably positioned inside the groove 8 in the technical solution, another structure is selected, which is specifically as follows Figure 2-3 As shown, the expansion type raised edge strip 7 includes two edge strip bodies 10 fixedly connected to the side of the bottom cover 4. The edge strip body 10 is made of plastic and can be stably fixed inside the groove 8. An elastic sleeve 11 is installed between the ends of the two edge strip bodies 10 away from the bottom cover 4. The edge strip body 10, the elastic sleeve 11 and the side of the bottom cover 4 form a filling cavity. The inside of the filling cavity is filled with a medium. When the medium increases, the elastic sleeve 11 can be squeezed to allow the elastic sleeve 11 to expand.

[0026] At the same time, the ends of the two side strips 10 away from the bottom cover 4 are bent towards each other to form an arc structure, so that the side strips 10 can be installed in the groove 8 more easily.

[0027] In order to further improve the sealing performance between the elastic sleeve 11 and the groove 8, a shaping portion 9 is provided in the middle of the groove 8. The longitudinal cross section of the shaping portion 9 may be a wave structure or may be as follows: Figure 3 As shown in the fold line structure, when the elastic sleeve 11 is squeezed, it will be squeezed into the same shape as the shaping portion 9, so that the gap between the elastic sleeve 11 and the groove 8 is a multi-segment structure, thereby improving the sealing between the elastic sleeve 11 and the groove 8.

[0028] Furthermore, the material of the elastic sleeve 11 is preferably latex, which has good deformation and waterproof properties.

[0029] like Figure 2-4 As shown, the medium is preferably a powder material. In order to better fill the powder material into the filling cavity, a storage cavity 12 and a connecting hole 13 for connecting the storage cavity 12 and the filling cavity are opened inside the bottom cover 4. A push plate 14 is slidably connected inside the storage cavity 12. The medium is filled in the space between the connecting hole 13 and the push plate 14 inside the storage cavity 12. A return spring 15 is installed inside the storage cavity 12 and at one end of the push plate 14 away from the connecting hole 13. The push plate 14 can be pushed by the elasticity of the return spring 15 to allow the push plate 14 to squeeze the powder material and squeeze the powder material into the inside of the connecting hole 13.

[0030] At the same time, a pull rope 16 is connected to the push plate 14, and a small hole is provided at one end of the storage chamber 12 away from the connecting hole 13. The end of the pull rope 16 away from the push plate 14 extends to the outside of the waterproof shell 1 through the small hole. At this time, the push plate 14 can be reset by pulling the pull rope 16, so that the divided material can flow back into the interior of the storage chamber 12.

[0031] The working principle of the utility model is as follows: the bottom cover 4 is installed at a position close to the opening inside the waterproof shell 1, and the expansion type raised edge strip 7 is installed inside the groove 8, and then the medium is filled into the filling cavity. When the medium increases, the elastic sleeve 11 can be squeezed to expand the elastic sleeve 11 to fill the gap between the bottom cover 4 and the groove 8, thereby effectively reducing the gap between the bottom cover 4 and the waterproof shell 1, and further improving the waterproof sealing performance of the lower part of the waterproof shell 1.

[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A photovoltaic inverter data collector device, comprising a waterproof housing (1), a PCB board (2) being installed inside the waterproof housing (1), an aviation terminal female end (3) being electrically connected to the PCB board (2) being threadedly connected to the upper end of the waterproof housing (1), the lower end of the waterproof housing (1) being open, a bottom cover (4) being installed near the opening inside the waterproof housing (1), an SMA connector (5) being electrically connected to the PCB board (2) being installed on the bottom cover (4), an antenna (6) being threadedly connected to the SMA connector (5) being located outside the waterproof housing (1), and the antenna (6) being electrically connected to the SMA connector (5), wherein: An expansion-type raised edge strip (7) is mounted on the side of the bottom cover (4), and a groove (8) is provided on the inner wall of the waterproof shell (1) near the opening, and the expansion-type raised edge strip (7) can expand inside the groove (8).

2. A photovoltaic inverter data collector device according to claim 1, characterized in that: The inflatable raised edge strip (7) comprises two edge strip bodies (10) fixedly connected to the side of the bottom cover (4), an elastic sleeve (11) being installed between the ends of the two edge strip bodies (10) away from the bottom cover (4), and the edge strip bodies (10), the elastic sleeve (11) and the side of the bottom cover (4) form a filling cavity, and the interior of the filling cavity is filled with a medium.

3. A photovoltaic inverter data collector device according to claim 2, characterized in that: One end of the two edge strip bodies (10) away from the bottom cover (4) is bent in a direction approaching each other.

4. A photovoltaic inverter data collector device according to claim 2, characterized in that: A shaping portion (9) is provided in the middle of the groove (8).

5. A photovoltaic inverter data collector device according to claim 2, characterized in that: The bottom cover (4) is provided with a material storage chamber (12) and a connecting hole (13) for connecting the material storage chamber (12) and the filling chamber. A push plate (14) is slidably connected to the inside of the material storage chamber (12). The medium is filled in the space between the connecting hole (13) and the push plate (14) inside the material storage chamber (12). A return spring (15) is installed inside the material storage chamber (12) and at one end of the push plate (14) away from the connecting hole (13).

6. A photovoltaic inverter data collector device according to claim 5, characterized in that: The push plate (14) is connected to a pull rope (16), and a small hole is provided at one end of the storage chamber (12) away from the connecting hole (13). The end of the pull rope (16) away from the push plate (14) extends through the small hole to the outside of the waterproof housing (1).

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