A multi-layer cavity device for a photovoltaic inverter

Abstract

The present invention discloses a multi-layer cavity device for a photovoltaic inverter, which relates to the technical field of photovoltaic inverters and includes a housing. A cover plate is detachably installed on the housing. A plurality of moving frames are slidably connected to the inner wall of the housing. A partitioning mechanism is provided on each moving frame. The partitioning mechanism includes a plurality of partition plates that can rotate on the moving frame. The plurality of partition plates are used to partition the interior of the housing and form multi-layer cavities. A push rod is slidably connected to the interior of each partition plate. Two adjacent partition plates are connected by the push rod. A moving plate is slidably connected to the moving frame. A driving mechanism for driving the partition plates to rotate is provided on the moving plate. The driving mechanism includes a connecting rod rotatably connected above the moving plate. The present invention can partition the interior of the housing into horizontal cavities or vertical cavities according to the needs of users, so as to facilitate adapting to the installation requirements of photovoltaic inverter parts of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic inverters, and in particular to a multi-layer cavity device for a photovoltaic inverter. Background Art

[0002] A photovoltaic inverter is a core device in a photovoltaic power generation system. Since a photovoltaic inverter is composed of multiple modules, the housing of the photovoltaic inverter adopts a multi-layer cavity design to separate each module, thereby facilitating subsequent maintenance and replacement operations.

[0003] Generally, a photovoltaic inverter separates the interior of the housing by arranging multiple partition plates inside the housing, and each cavity is suitable for installing different functional modules.

[0004] When the existing photovoltaic inverter separates the interior of the housing into cavities by partition plates, since the shape of the partition plates is fixedly set, the formed cavities will change following the shape of the partition plates. For example, when the partition plates are arranged horizontally, the cavities inside the housing are multiple horizontally extending cavities. Therefore, when components need to be placed longitudinally, additional brackets need to be installed on the partition plates to separate the components into longitudinal isolation cavities. The above operations increase the complexity of installation, resulting in a problem of decreased installation efficiency. Summary of the Invention

[0005] The purpose of the present invention is to propose a multi-layer cavity device for a photovoltaic inverter to solve the problem that the shape of the existing partition plates is fixed and cannot freely change according to needs to form different cavities.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A multi-layer cavity device for a photovoltaic inverter, including a housing, a cover plate is detachably installed on the housing, a plurality of moving frames are slidably connected to the inner wall of the housing, a partitioning mechanism is arranged on each moving frame, the partitioning mechanism includes a plurality of partition plates that can rotate on the moving frame, and the plurality of partition plates are used to partition the interior of the housing and form multi-layer cavities. A push rod is slidably connected to the inside of each partition plate, and two adjacent partition plates are connected by the push rod. A moving plate is slidably connected to the moving frame, and a driving mechanism for driving the partition plates to rotate is arranged on the moving plate. The driving mechanism includes a connecting rod rotatably connected above the moving plate;

[0007] By driving the moving frame and driving the partition plates to move, and the partition plates slide on the inner wall of the housing, different-sized horizontal cavities can be formed;

[0008] Drive the connecting rod to move through the moving plate. The connecting rod moves to the partition plate and is connected to both ends of the partition plate. Subsequently, drive the connecting rod to drive the partition plate to rotate, so that multiple partition plates rotate synchronously around the connecting rod, and a longitudinal cavity can be formed as needed.

[0009] As a further description of a multi-layer cavity device of a photovoltaic inverter as described above:

[0010] The moving frame includes a positioning rod fixedly connected inside the housing, and the surface of the positioning rod is slidably connected to the inside of the moving frame. A number of positioning holes are provided on the positioning rod. A positioning plate is slidably connected inside the moving frame. A fixing rod is fixedly connected to the positioning plate, and the size of the fixing rod matches the size of the positioning holes.

[0011] As a further description of a multi-layer cavity device of a photovoltaic inverter as described above:

[0012] A first bidirectional lead screw is threadedly connected inside the positioning plate, and the first bidirectional lead screw is rotatably connected inside the moving frame.

[0013] As a further description of a multi-layer cavity device of a photovoltaic inverter as described above:

[0014] The moving frame includes a support frame fixedly connected to the lower surface of the moving frame. The support frame is used to support the partition plate. A limiting groove is provided inside the support frame, and the moving plate is slidably connected to the inner wall of the limiting groove.

[0015] As a further description of a multi-layer cavity device of a photovoltaic inverter as described above:

[0016] One end of the connecting rod is rotatably connected with a clamping plate. The clamping plate is slidably connected to the inside of the moving plate. A limiting bead is slidably connected inside the connecting rod. A third spring is fixedly connected between the limiting beads. A connecting sleeve is fixedly connected to the partition plate. A tooth groove is provided inside the connecting sleeve, and the size of the tooth groove matches the size of the limiting beads.

[0017] As a further description of a multi-layer cavity device of a photovoltaic inverter as described above:

[0018] A worm gear is fixedly connected to the surface of the connecting rod. A worm is fixedly connected to one side of the clamping plate. The worm and the worm gear are meshed with each other.

[0019] As a further description of a multi-layer cavity device of a photovoltaic inverter as described above:

[0020] A second bidirectional lead screw is threadedly connected inside the clamping plate, and the second bidirectional lead screw is rotatably connected to the inside of the moving plate.

[0021] As a further description of a multi-layer cavity device of a photovoltaic inverter for the above technology:

[0022] A first iron rod is slidably connected inside the partition plate. One end of the first iron rod is fixedly connected to an elastic telescopic rod. A conical sleeve is fixedly connected to the upper surface of the first iron rod. A push rod is slidably connected inside the partition plate. A second spring is fixedly connected between the push rod and the partition plate. First limit holes are formed on one side of the partition plate and the moving frame, and the size of the first limit holes matches the size of the limit rod.

[0023] As a further description of a multi-layer cavity device of a photovoltaic inverter for the above technology:

[0024] A third iron rod is slidably connected inside the push rod. One end of the third iron rod is rotatably connected to a connecting rod. One end of the connecting rod is rotatably connected to a limit rod. The limit rod is slidably connected inside the push rod. A second iron rod is fixedly connected to the conical sleeve. One end of the connecting rod is fixedly connected to an electromagnet. A second limit hole is formed inside the first limit hole, and the size of the second limit hole matches the size of the limit rod.

[0025] As a further description of a multi-layer cavity device of a photovoltaic inverter for the above technology:

[0026] An extrusion sleeve is fixedly connected to the upper surface of the moving plate. One end of the connecting sleeve is rotatably connected to a protection plate.

[0027] In summary, due to adopting the above technology of a multi-layer cavity device of a photovoltaic inverter, the beneficial effects of the present invention are:

[0028] 1. By providing a moving frame and a partition plate, the moving frame slides on the surface of the positioning rod, and the moving frame drives the partition plate to slide, so that the partition plate can move to different positions inside the housing, and the size of the horizontal cavity can be adjusted according to the needs of the user. This device can divide the interior of the housing into multiple layers of cavities according to the needs of the user, and can also freely adjust the size of the horizontal cavity, so as to facilitate adapting to the installation requirements of photovoltaic inverter parts of different sizes.

[0029] 2. By providing a driving mechanism, when it is necessary to form a longitudinal cavity inside the housing, the moving plate can be driven to move to the connecting sleeve at the partition. Subsequently, the driving plate drives the connecting rod to move, and the connecting rod drives the limiting beads to enter the tooth grooves of the connecting sleeve and engage with the connecting sleeve. At the same time, the first iron rod is squeezed by the connecting rod, causing the connecting rod to move inward of the partition. Then, under the reset action of the second spring, the push rod disengages from the front moving frame or the first limiting hole inside the partition. By driving the connecting rod to rotate, the connecting rod can drive the connecting sleeve to rotate through the limiting beads, and the connecting sleeve can drive the partition to rotate, thus forming longitudinal cavities of different sizes. This device can form longitudinal cavities of different sizes by driving the partitions at different positions to rotate, and can adapt to photovoltaic inverter parts of different sizes or shapes for vertical placement and installation.

[0030] 3. By driving the partition to rotate, the change of the internal space cavity of the housing can be adjusted, enabling the staff to have a larger space for operation when installing or disassembling photovoltaic inverter parts, thereby improving the work efficiency of installation and maintenance. At the same time, based on the cooperation of the moving frame, longitudinal cavities of different heights can be formed in the internal cavity of the housing, improving the space utilization rate inside the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shows the overall structural schematic diagram according to the present invention;

[0032] Figure 2 Shows the internal structural schematic diagram of the housing according to the present invention;

[0033] Figure 3 Shows the structural schematic diagram of the moving frame, partition and moving plate according to the present invention;

[0034] Figure 4 Shows the partial structural schematic diagram of the moving frame according to the present invention;

[0035] Figure 5 Shows the partial structural bottom view of the moving frame according to the present invention;

[0036] Figure 6 Shows the structural schematic diagram of the moving plate according to the present invention;

[0037] Figure 7 Shows the partial structural schematic diagram of the moving plate according to the present invention;

[0038] Figure 8 Shows the partial structural cross-sectional view of the moving plate according to the present invention;

[0039] Figure 9 Shows the structural schematic diagram of the partition according to the present invention;

[0040] Figure 10Shows a structural cross-sectional view of the partition according to the present invention;

[0041] Figure 11 Shows a schematic structural view of the tapered sleeve and the push rod according to the present invention;

[0042] Figure 12 Shows a structural cross-sectional view of the push rod according to the present invention;

[0043] Figure 13 Shows a structural cross-sectional view of the moving frame and the push rod according to the present invention.

[0044] Legend description:

[0045] 1. Housing; 11. Cover plate; 12. Positioning rod; 121. Positioning hole; 2. Moving frame; 21. Support frame; 211. Limiting groove; 22. First bidirectional lead screw; 221. Positioning plate; 222. Fixed rod; 3. Partition; 31. Connecting sleeve; 311. Protection plate; 32. First iron rod; 321. Tapered sleeve; 322. Elastic telescopic rod; 323. Second iron rod; 33. Push rod; 331. First spring; 34. Third iron rod; 341. Connecting rod; 342. Limiting rod; 343. Second spring; 4. Moving plate; 41. Second bidirectional lead screw; 42. Clamp; 421. Worm; 43. Connecting rod; 431. Limiting bead; 432. Third spring; 433. Worm gear; 434. Electromagnet; 44. Extrusion sleeve; 5. First limiting hole; 51. Second limiting hole. Detailed implementation manners

[0046] Next, the technical solution of a multi-layer cavity device of a photovoltaic inverter in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0047] As Figures 1-13 shown, the present invention provides: a multi-layer cavity device of a photovoltaic inverter, including a housing 1, a cover plate 11 is detachably installed on the housing 1, a plurality of moving frames 2 are slidably connected to the inner wall of the housing 1, a partitioning mechanism is provided on each moving frame 2, the partitioning mechanism includes a plurality of partitions 3 that can rotate on the moving frame 2, and the plurality of partitions 3 are used to partition the interior of the housing 1 and form multi-layer cavities. A push rod 33 is slidably connected to the inside of each partition 3, and two adjacent partitions 3 are connected by the push rod 33. A moving plate 4 is slidably connected to the moving frame 2, and a driving mechanism for driving the partition 3 to rotate is provided on the moving plate 4. The driving mechanism includes a connecting rod 43 rotatably connected above the moving plate 4;

[0048] By driving the moving frame 2 to drive the partition 3 to move, and the partition 3 slides on the inner wall of the housing 1, transverse cavities of different sizes can be formed;

[0049] By driving the connecting rod 43 to move through the moving plate 4, the connecting rod 43 moves to the partition 3 and is connected to both ends of the partition 3. Subsequently, the connecting rod 43 is driven to drive the partition 3 to rotate, so that multiple partitions 3 rotate synchronously around the connecting rod 43, and longitudinal cavities can be formed as needed.

[0050] Specifically, in order to install various components for use and keep the components from interfering with each other, a partition 3 is generally arranged inside the housing 1 of the photovoltaic inverter. The housing 1 is divided into multiple cavities by the partition 3, and each cavity is suitable for installing different functional modules;

[0051] When the existing photovoltaic inverter divides the interior of the housing 1 into cavities through the partition 3, since the shape of the partition 3 is fixedly set, the formed cavities will change with the shape of the partition 3. For example, when the partition 3 is arranged horizontally, the cavities inside the housing 1 are multiple horizontally extending cavities. When components need to be installed longitudinally, the partition 3 requires additional brackets or structures to adapt to the installation requirements of the components, thus increasing the complexity and difficulty of installation;

[0052] To solve the above problems, the present invention is used as follows: When using the housing 1 and needing to divide it into multiple transverse cavities inside, by driving multiple moving frames 2 to move, the moving frames 2 drive the partition 3 above them to move synchronously, and the interior of the housing 1 can be divided into multiple transverse cavities. Subsequently, the user can install the components inside each cavity. At the same time, by driving each moving frame 2 to slide to different heights inside the housing 1, the distance between each transverse cavity can be adjusted;

[0053] When it is necessary to divide the cavities inside the housing 1 into longitudinal cavities, the moving plate 4 can be driven to slide on the surface of the moving frame 2. The moving plate 4 drives the connecting rod 43 to move synchronously. The connecting rod 43 moves to the partition 3 beside the moving frame 2. The moving plate 4 and both ends of the partition 3 are driven to be fixedly connected to each other. And at the same time, the push rod 33 inside the partition 3 is driven to move, so that the push rod 33 is received inside the partition 3 and disconnected from the connection with the moving frame 2. Subsequently, the connecting rod 43 is driven to rotate, and the connecting rod 43 drives multiple partitions 3 to rotate synchronously. The multiple partitions 3 rotate ninety degrees around the connecting rod 43, and longitudinal cavities can be formed;

[0054] According to the needs of the user, the present invention can form changes in the longitudinal cavity and the transverse cavity by rotating the partition plate 3 to different angles, so as to meet the installation requirements of photovoltaic inverter parts of different sizes. At the same time, the rotation of the partition plate 3 can adjust the space inside the cavity. When the staff installs or disassembles the photovoltaic inverter parts, there is a large space for operation, thus improving the work efficiency of installation and maintenance.

[0055] As Figure 2 shown, the moving frame 2 includes a positioning rod 12 fixedly connected inside the housing 1, and the surface of the positioning rod 12 is slidably connected to the inside of the moving frame 2. A plurality of positioning holes 121 are provided on the positioning rod 12. A positioning plate 221 is slidably connected to the inside of the moving frame 2. A fixing rod 222 is fixedly connected to the positioning plate 221, and the sizes of the fixing rod 222 and the positioning holes 121 match.

[0056] Specifically, when it is necessary to adjust the moving frame 2 to move to different heights, the moving frame 2 can be driven to slide on the positioning rod 12. After the moving frame 2 slides to a suitable height, at this time, the positioning plate 221 is driven to slide inside the moving frame 2, and the positioning plate 221 drives the fixing rod 222 to insert into the positioning holes 121, and the fixing and limiting of the moving frame 2 can be completed.

[0057] As Figure 5 shown, a first bidirectional lead screw 22 is threadedly connected to the inside of the positioning plate 221, and the first bidirectional lead screw 22 is rotatably connected to the inside of the moving frame 2.

[0058] Specifically, by rotating the first bidirectional lead screw 22, the two positioning plates 221 can be driven to slide synchronously. When it is necessary to fix the moving frame 2, the two positioning plates 221 are driven to approach each other, and the positioning plate 221 can drive the fixing rod 222 to insert into the positioning holes 121, thereby completing the fixing operation of the moving frame 2.

[0059] As Figure 4 shown, the moving frame 2 includes a support frame 21, and the support frame 21 is fixedly connected to the lower surface of the moving frame 2. The support frame 21 is used to support the partition plate 3. A limiting groove 211 is provided inside the support frame 21, and the moving plate 4 is slidably connected to the inner wall of the limiting groove 211.

[0060] Specifically, the support frame 21 can support the moving plate 4, so that the moving plate 4 can stably slide under multiple partition plates 3. At the same time, the support frame 21 can also support the partition plate 3, thereby maintaining the stability of the partition plate 3 when installing parts.

[0061] As Figure 6 - Figure 9As shown, one end of the connecting rod 43 is rotatably connected to a clamping plate 42. The clamping plate 42 is slidably connected to the inside of the moving plate 4. A limiting bead 431 is slidably connected to the inside of the connecting rod 43. A third spring 432 is fixedly connected between the limiting beads 431. A connecting sleeve 31 is fixedly connected to the partition plate 3. A tooth groove is provided inside the connecting sleeve 31, and the size of the tooth groove matches the size of the limiting bead 431.

[0062] Specifically, when the moving plate 4 slides, it drives the clamping plate 42 to slide synchronously. The clamping plate 42 drives the connecting rod 43 to move synchronously. The connecting rod 43 moves to the baffle at the specified position. At this time, the clamping plate 42 is driven to slide on the surface of the moving plate 4, so that the clamping plate 42 drives the connecting rod 43 to move towards one end of the partition plate 3. The connecting rod 43 drives the limiting bead 431 to enter the connecting sleeve 31 at one end of the partition plate 3. At this time, the limiting bead 431 remains engaged with the tooth groove inside the connecting sleeve 31 under the extrusion of the third spring 432, and the connection and fixation between the connecting rod 43 and the partition plate 3 can be completed.

[0063] As Figure 10 - Figure 13 As shown, a first iron rod 32 is slidably connected to the inside of the partition plate 3. One end of the first iron rod 32 is fixedly connected to an elastic telescopic rod 322. A conical sleeve 321 is fixedly connected to the upper surface of the first iron rod 32. A push rod 33 is slidably connected to the inside of the partition plate 3. A second spring 343 is fixedly connected between the push rod 33 and the partition plate 3. First limiting holes 5 are provided on one side of both the partition plate 3 and the moving frame 2, and the size of the first limiting holes 5 matches the size of the limiting rod 342.

[0064] Specifically, after the connecting rod 43 enters the inside of the connecting sleeve 31, the connecting rod 43 squeezes the first iron rod 32 to slide inwardly of the partition plate 3. While squeezing the elastic telescopic rod 322, the first iron rod 32 drives the tapered sleeve 321 to move synchronously. The tapered sleeve 321 slides inwardly of the partition plate 3, causing the second spring 343 to drive the push rod 33 to slide toward one side of the tapered sleeve 321, thereby driving the push rod 33 to disengage from the limiting frame or the first limiting hole 5 inside the front partition plate 3. At this time, the connecting rod 43 is rotated. The connecting rod 43 engages with the tooth groove through the limiting beads 431, causing the partition plate 3 to rotate. Since the limiting rod 342 here disengages from the front first limiting hole 5, the partition plate 3 here drives the partition plate 3 behind it to rotate synchronously. The user can drive the partition plate 3 at any position to rotate and form longitudinal cavities of various sizes, which can meet the installation of parts of different sizes. At the same time, the partition plate 3 can also be driven to rotate so that some partition plates 3 are arranged horizontally and some partition plates 3 are arranged obliquely, thereby enabling better utilization of the longitudinal and transverse cavities. This can not only improve the utilization rate of the internal space of the housing 1 but also allow the parts to be placed at different angles on the partition plate 3, thereby increasing the heat dissipation area of the parts and improving the heat dissipation efficiency.

[0065] As Figure 7 and Figure 8 shown, a worm gear 433 is fixedly connected to the surface of the connecting rod 43, and a worm 421 is fixedly connected to one side of the clamping plate 42. The worm 421 and the worm gear 433 are engaged with each other.

[0066] Specifically, when it is necessary to drive the connecting rod 43 to rotate, the worm 421 is rotated. The worm 421 and the worm gear 433 are engaged to drive the connecting rod 43 to rotate. At the same time, the worm 421 and the worm gear 433 have a self-locking characteristic, which can improve the stability of the partition plate 3 after rotation.

[0067] As Figure 6 - Figure 8 shown, a second bidirectional lead screw 41 is threadedly connected to the inside of the clamping plate 42, and the second bidirectional lead screw 41 is rotatably connected to the inside of the moving plate 4.

[0068] Specifically, when it is necessary to connect the connecting rod 43 and the partition plate 3, the second bidirectional lead screw 41 can be driven to rotate. The second bidirectional lead screw 41 drives the two clamping plates 42 to approach each other. The clamping plate 42 drives the connecting rod 43 to slide inwardly of the connecting sleeve 31 on the surface of the partition plate 3. The connecting rod 43 drives the limiting beads 431 to enter the tooth groove of the connecting sleeve 31, thereby completing the connection between the connecting rod 43 and the partition plate 3.

[0069] As Figure 9 - Figure 13As shown, a third iron rod 34 is slidably connected inside the push rod 33. One end of the third iron rod 34 is rotatably connected to a connecting rod 341. One end of the connecting rod 341 is rotatably connected to a limiting rod 342. The limiting rod 342 is slidably connected to the inside of the push rod 33. A second iron rod 323 is fixedly connected to the tapered sleeve 321. One end of the connecting rod 43 is fixedly connected to an electromagnet 434. A second limiting hole 51 is formed inside the first limiting hole 5. The size of the second limiting hole 51 matches the size of the limiting rod 342.

[0070] Specifically, when it is necessary to form a transverse cavity and an inclined cavity, the partition 3 can be driven to rotate into an inclined shape. At this time, one end of the partition 3 is far from the inner wall of the housing 1 and has a certain moving space. Therefore, during or after the rotation of the partition 3, when shaking causes the first iron rod 32 to move, the limiting rod 342 inside the rear partition 3 will slide out of the first limiting hole 5 inside the front partition 3, resulting in the rear partition 3 falling off, thus making it difficult to form an inclined cavity.

[0071] To avoid the above problems, under normal conditions, the limiting rod 342 is inside the second limiting hole 51, which can limit the push rod 33, so that the push rod 33 is always inside the first limiting hole 5. When it is necessary to drive the partition 3 to rotate, the electromagnet 434 can be turned on to work. The moving plate 4 drives the clamping plate 42 to move. The clamping plate 42 drives the connecting rod 43 to move. The connecting rod 43 drives the electromagnet 434 to move. The electromagnet 434 generates magnetic force when working. Since the first iron rod 32 and the second iron rod 323 are made of metal materials, under the magnetic force of the electromagnet 434, both the first iron rod 32 and the second iron rod 323 will be magnetized. Therefore, magnetic force will be generated on the surfaces of the first iron rod 32 and the second iron rod 323. Subsequently, the connecting rod 43 drives the electromagnet 434 to push the first iron rod 32 to move, so that the second iron rod 323 moves to the position of the third iron rod 34. Since the second iron rod 323 has magnetic force at this time, the second iron rod 323 will adsorb the third iron rod 34 to move towards the inside of the partition 3. The third iron rod 34 moves and stretches the second spring 343. The third iron rod 34 drives the connecting rod 341 to rotate. The connecting rod 341 drives the limiting rod 342 to slide towards the inside of the push rod 33, so that the push rod 33 disengages from the inside of the second limiting hole 51. At this time, under the action of the first spring 331, the push rod 33 slides towards the inside of the partition 3 and disengages from the inside of the first limiting hole 5. Subsequently, the partition 3 here can be driven to rotate. After the driving of the partition 3 is completed, the electromagnet 434 is turned off. At this time, the push rod 33 is squeezed by the moving rod and the electromagnet 434. Therefore, the push rod 33 is relatively stable, making the baffle stable at this time.

[0072] The device can, through the cooperation of the limiting rod 342 and the second limiting hole 51, prevent the push rod 33 from detaching from the inside of the first limiting block, avoiding the problem that when the driving partition 3 rotates and tilts, the first iron rod 32 shakes and affects the position of the push rod 33, resulting in the push rod 33 detaching from the first limiting hole 5 and causing the partition 3 to fall and thus unable to form an inclined cavity.

[0073] As Figure 7 - Figure 9 shown, a pressing sleeve 44 is fixedly connected to the upper surface of the moving plate 4, and one end of the connecting sleeve 31 is rotatably connected to a protective plate 311.

[0074] Specifically, the pressing sleeve 44 is used to press the limiting beads 431 so that the limiting beads 431 are located inside the inner wall of the connecting rod 43, facilitating the sliding of the limiting beads 431 into the inside of the connecting sleeve 31 and engaging with the tooth grooves. At the same time, the protective plate 311 is used to shield one end of the connecting sleeve 31 to prevent impurities from adhering to the first iron rod 32 or the tooth grooves of the connecting sleeve 31. At the same time, the connecting sleeve 31 can position the moving plate 4, facilitating the user to quickly drive the moving plate 4 to move to the designated partition 3 for connection operation.

[0075] Working principle: When using the housing 1, when it is necessary to divide the interior of the housing 1 into multiple horizontal cavities, drive the moving frame 2 to slide on the positioning rod 12. After the moving frame 2 slides to an appropriate height, rotate the first bidirectional lead screw 22 to drive the two positioning plates 221 to slide synchronously. The positioning plates 221 slide inside the moving frame 2, and the positioning plates 221 drive the fixing rods 222 to insert into the positioning holes 121, enabling the fixed limit of the moving frame 2, and thus dividing the interior of the housing 1 into multiple horizontal cavities of different sizes;

[0076] When it is necessary to divide the interior of the housing 1 into multiple longitudinal cavities, open the protective plate 311 at the partition plate 3 at the specified position, and drive the moving plate 4 to slide in the limiting groove 211 inside the support frame 21. The moving plate 4 moves to the protective plate 311 for limiting. Subsequently, turn on the electromagnet 434 and rotate the second bidirectional lead screw 41. The second bidirectional lead screw 41 drives the two clamping plates 42 to approach each other. The clamping plate 42 drives the connecting rod 43 to slide inwardly into the connecting sleeve 31 on the surface of the partition plate 3. The connecting rod 43 drives the limiting bead 431 to enter the tooth groove of the connecting sleeve 31, and the connection between the connecting rod 43 and the partition plate 3 can be completed. The connecting rod 43 drives the electromagnet 434 to contact the first iron rod 32. The electromagnet 434 works to generate magnetic force, and both the first iron rod 32 and the second iron rod 323 are magnetized, so that magnetic force will be generated on the surfaces of the first iron rod 32 and the second iron rod 323. The electromagnet 434 pushes the first iron rod 32 to move. The first iron rod 32 slides inwardly towards the partition plate 3. While the first iron rod 32 squeezes the elastic telescopic rod 322, it drives the tapered sleeve 321 to move synchronously, so that the second iron rod 323 moves to the third iron rod 34. Since the second iron rod 323 has magnetic force at this time, the second iron rod 323 will adsorb the third iron rod 34 to move inwardly towards the partition plate 3. The third iron rod 34 moves and stretches the second spring 343. The third iron rod 34 drives the connecting rod 341 to rotate. The connecting rod 341 drives the limiting rod 342 to slide inwardly into the push rod 33, so that the push rod 33 disengages from the inside of the second limiting hole 51. At this time, under the action of the first spring 331, the push rod 33 slides inwardly towards the partition plate 3, disengages from the inside of the first limiting hole 5, and remains in contact with the surface of the tapered sleeve 321. Then rotate the worm 421. The worm 421 meshes with the worm gear 433. The worm gear 433 drives the connecting rod 43 to rotate. The connecting rod 43 meshes with the tooth groove through the limiting bead 431 and drives the partition plate 3 to rotate. Multiple partition plates 3 rotate 90 degrees around the connecting rod 43. Thus, multiple partition plates 3 become longitudinal, and longitudinal partition plates 3 can be formed. Subsequently, drive the partition plates 3 on the surfaces of other moving frames 2, so that multiple transverse partition plates 3 are converted into longitudinal partition plates 3, and longitudinal cavities can be formed, which can be used to place large equipment of different sizes.

[0077] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic inverter multilayer cavity device, comprising a housing (1), a cover plate (11) being detachably mounted on the housing (1), characterized in that: The inner wall of the shell (1) is slidably connected to a plurality of movable racks (2), each of the movable racks (2) being provided with a partition mechanism, the partition mechanism comprising a plurality of partitions (3) rotatable on the movable rack (2), the plurality of partitions (3) being used to partition the interior of the shell (1) and form a multi-layer cavity, the interior of each partition (3) being slidably connected to a push rod (33), two adjacent partitions (3) being connected via the push rod (33), the movable rack (2) being slidably connected to a movable plate (4), the movable plate (4) being provided with a driving mechanism for driving the partition (3) to rotate, the driving mechanism comprising a connecting rod (43) rotatably connected to the top of the movable plate (4); By driving the movable frame (2) and driving the partition (3) to move, the partition (3) slides on the inner wall of the shell (1), thereby forming transverse cavities of different sizes; The connecting rod (43) is driven to move by the movable plate (4), and the connecting rod (43) moves to the partition (3) and is connected to both ends of the partition (3), and then the connecting rod (43) is driven to drive the partition (3) to rotate, so that the plurality of partitions (3) rotate synchronously around the connecting rod (43), thereby forming a longitudinal cavity as required; The partition (3) is internally slidably connected to a first iron rod (32), one end of the first iron rod (32) is fixedly connected to an elastic telescopic rod (322), the upper surface of the first iron rod (32) is fixedly connected to a cone sleeve (321), the partition (3) is internally slidably connected to a push rod (33), a second spring (343) is fixedly connected between the push rod (33) and the partition (3), a first limiting hole (5) is provided on one side of the partition (3) and the movable frame (2), and the size of the first limiting hole (5) matches the size of the limiting rod (342); the push rod (33) is A third iron rod (34) is slidably connected internally, one end of the third iron rod (34) is rotatably connected to a connecting rod (341), one end of the connecting rod (341) is rotatably connected to a limiting rod (342), the limiting rod (342) and the push rod (33) are slidably connected internally, a second iron rod (323) is fixedly connected to the cone sleeve (321), one end of the connecting rod (43) is fixedly connected to an electromagnet (434), a second limiting hole (51) is provided inside the first limiting hole (5), and the size of the second limiting hole (51) matches the size of the limiting rod (342).

2. A photovoltaic inverter multilayer cavity device according to claim 1, characterized in that: The mobile frame (2) comprises a positioning rod (12) fixedly connected to the inside of the housing (1), and the surface of the positioning rod (12) is slidably connected to the inside of the mobile frame (2), a plurality of positioning holes (121) are provided on the positioning rod (12), a positioning plate (221) is slidably connected to the inside of the mobile frame (2), a fixing rod (222) is fixedly connected to the positioning plate (221), and the sizes of the fixing rod (222) and the positioning hole (121) match.

3. A photovoltaic inverter multilayer cavity device according to claim 2, characterized in that: The internal thread of the positioning plate (221) is connected to a first bidirectional screw rod (22), and the first bidirectional screw rod (22) is rotatably connected to the interior of the moving frame (2).

4. A photovoltaic inverter multilayer cavity device according to claim 3, characterized in that: The movable frame (2) comprises a support frame (21) fixedly connected to the lower surface of the movable frame (2), the support frame (21) being used to support the partition plate (3), a limiting groove (211) being arranged inside the support frame (21), and the movable plate (4) is slidably connected to the inner wall of the limiting groove (211).

5. A photovoltaic inverter multilayer cavity device according to claim 4, characterized in that: One end of the connecting rod (43) is rotatably connected to a clamping plate (42), the clamping plate (42) is internally slidably connected to the movable plate (4), the internal slidably connected to a limiting bead (431), a third spring (432) is fixedly connected between the limiting beads (431), the partition plate (3) is fixedly connected to a connecting sleeve (31), a tooth groove is provided inside the connecting sleeve (31), and the size of the tooth groove matches the size of the limiting bead (431).

6. A photovoltaic inverter multilayer cavity device according to claim 5, characterized in that: A worm wheel (433) is fixedly connected to the surface of the connecting rod (43), a worm (421) is fixedly connected to one side of the clamping plate (42), and the worm (421) and the worm wheel (433) are meshed with each other.

7. A photovoltaic inverter multilayer cavity device according to claim 6, characterized in that: The second bidirectional screw rod (41) is connected to the internal thread of the clamping plate (42), and the second bidirectional screw rod (41) is internally rotatably connected to the movable plate (4).

8. The photovoltaic inverter multilayer cavity device according to claim 5, characterized in that: An extrusion sleeve (44) is fixedly connected to the upper surface of the movable plate (4), and one end of the connecting sleeve (31) is rotatably connected to a protection plate (311).

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