CN220964115U - Photovoltaic grid-connected cabinet operation safety guarantee device - Google Patents
Photovoltaic grid-connected cabinet operation safety guarantee device Download PDFInfo
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- CN220964115U CN220964115U CN202322327513.0U CN202322327513U CN220964115U CN 220964115 U CN220964115 U CN 220964115U CN 202322327513 U CN202322327513 U CN 202322327513U CN 220964115 U CN220964115 U CN 220964115U
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- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000006378 damage Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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Abstract
The utility model discloses an operation safety guarantee device of a photovoltaic grid-connected cabinet, which comprises an S-shaped functional plate, a U-shaped bolt, an installation backboard, a fixed pipe sleeve and a cable, wherein the S-shaped functional plate comprises a first straight plate, a second straight plate and a third straight plate; the utility model can ensure that the cabinet door of the grid-connected cabinet is in a locking state when the grid-connected breaker is in a closing state by being matched with the grid-connected cabinet and the grid-connected breaker in the prior art, thereby avoiding the damage to people or equipment caused by arc due to improper operation of operators.
Description
Technical Field
The utility model relates to the technical field of power distribution, in particular to an operation safety guarantee device for a photovoltaic grid-connected cabinet.
Background
The photovoltaic grid-connected cabinet is used as a main outlet of the photovoltaic power station and exists in a photovoltaic system, is a power distribution device for connecting the photovoltaic power station and a power grid, can protect and meter the total amount of photovoltaic power generation, is convenient for fault maintenance and management, improves the safety and economic benefit of the power generation system, is widely applied to the photovoltaic power generation system, and can form a complete solution of the photovoltaic power generation system when being matched with the photovoltaic grid-connected inverter.
In the technical provision of distributed power supply access to the power grid, provision is made for: the distributed power supply must be provided with a grid-connected disconnection device which is easy to operate, can be locked and has obvious disconnection points at grid-connected points so as to ensure the personal safety of power facility overhaul and maintenance personnel. Therefore, the grid-connected cabinet inlet terminals of the photovoltaic grid-connected cabinets all use isolating switches as grid-connected point disconnecting devices, but the isolating switches cannot be operated with load, such as improper operation or illegal operation of operation maintenance personnel, and on-load power failure accidents are easily caused, such as arc injury, power supply short circuit, equipment damage and the like.
Disclosure of utility model
The utility model aims to solve the problems that a grid-connected disconnecting device in the prior art cannot be operated under load and is easy to cause power failure under load.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a photovoltaic grid-connected cabinet operation safety guarantee device, it includes S-shaped function board, the U-shaped bolt, the installation backplate, the fixed pipe box, and the hawser, S-shaped function board includes along the first straight board of same direction parallel arrangement, the second straight board, and the third straight board, one side of first straight board and second straight board is fixed with first connecting plate, the opposite side of second straight board and third straight board is fixed with the second connecting plate, the U-shaped bolt includes the arc pole, and be fixed in the quarter butt and the stock of arc pole tip respectively, be provided with first through-hole and second through-hole on second straight board and the third straight board, distance between first through-hole and the second through-hole equals the distance between two tip of arc pole, the arc pole is located between first straight board and the second straight board, quarter butt and stock pass first through-hole and second through-hole respectively, be close to being provided with the baffle on the body of rod of third straight board, the spring has been cup jointed on the quarter butt body of rod between second straight board and the baffle, the screw hole has been seted up the screw hole in proper order with hollow joint and hollow joint after fixedly connected with the hollow joint through-thread joint in proper order.
As a preferable scheme of the photovoltaic grid-connected cabinet operation safety guarantee device, the utility model comprises the following steps: the bottom end of the arc-shaped rod is provided with a square through hole, and the rod body of the arc-shaped rod is provided with a first clamping hole communicated with the square through hole.
As a preferable scheme of the photovoltaic grid-connected cabinet operation safety guarantee device, the utility model comprises the following steps: one side of the connecting piece is a hollow cylinder, the other side of the connecting piece is a square cylinder matched with the square through hole, and a second clamping hole is formed in the square cylinder.
As a preferable scheme of the photovoltaic grid-connected cabinet operation safety guarantee device, the utility model comprises the following steps: one end of the cable is positioned in the hollow cylinder and is glued with the inner wall of the hollow cylinder, and a bolt is inserted into the second clamping hole on the square cylinder and the first clamping hole on the arc-shaped rod.
As a preferable scheme of the photovoltaic grid-connected cabinet operation safety guarantee device, the utility model comprises the following steps: the length of the short rod is 20 mm-30 mm shorter than that of the long rod.
As a preferable scheme of the photovoltaic grid-connected cabinet operation safety guarantee device, the utility model comprises the following steps: the installation backplate includes the first mounting panel of laminating with second connecting plate surface, and the both sides of first mounting panel are provided with second mounting panel and third mounting panel, and the operation hole has been seted up to the position that first mounting panel corresponds with the arc pole, has seted up the mounting hole on second mounting panel and the third mounting panel.
The utility model has the beneficial effects that: the utility model can ensure that the cabinet door of the grid-connected cabinet is in a locking state when the grid-connected circuit breaker is in a closing state by being matched with the grid-connected cabinet and the grid-connected circuit breaker in the prior art, and avoid the problems of arc injury and equipment damage caused by improper operation or illegal operation of operators.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
Fig. 1 is an overall structure diagram of a photovoltaic grid-connected cabinet operation safety guarantee device.
Fig. 2 is a back structure diagram of an S-shaped functional board in the photovoltaic grid-connected cabinet operation safety guarantee device.
Fig. 3 is a structural diagram of a U-shaped bolt in a photovoltaic grid-connected cabinet operation safety guarantee device.
Fig. 4 is an overall structure diagram of a photovoltaic grid-connected cabinet operation safety guarantee device used in combination with a grid-connected cabinet and a grid-connected circuit breaker.
Fig. 5 is an overall structure diagram of a photovoltaic grid-connected cabinet operation safety guarantee device used in combination with a grid-connected circuit breaker and a door lock on the grid-connected cabinet.
Fig. 6 is an enlarged view at a in fig. 5.
Fig. 7 is another view angle structure diagram of a U-shaped bolt in the photovoltaic grid-connected cabinet operation safety guarantee device.
Fig. 8 is a schematic structural diagram of connection between a connector and a cable in the operation safety guarantee device of the photovoltaic grid-connected cabinet.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 6, in a first embodiment of the present utility model, the embodiment provides a photovoltaic grid-connected cabinet operation security device, which includes an S-shaped functional board 1, a U-shaped bolt 2, an installation back board 3, a fixing tube sleeve 4, and a cable 5, wherein the installation back board 3 is used to fix the S-shaped functional board 1 to a grid-connected cabinet framework, and the tightness of the cable 5 in the fixing tube sleeve 4 is controlled to further control the U-shaped bolt 2 to limit a lock tongue on a grid-connected cabinet door.
Specifically, including S-shaped function board 1, U-shaped bolt 2, installation backplate 3, fixed pipe sleeve 4, and hawser 5,S shape function board 1 includes first straight board 1a along same direction parallel arrangement, second straight board 1b, and third straight board 1c, one side of first straight board 1a and second straight board 1b is fixed with first connecting plate 1d, the opposite side of second straight board 1b and third straight board 1c is fixed with second connecting plate 1e, U-shaped bolt 2 includes curved bar 2a, and be fixed in the dead lever 2b and the dead lever 2c of curved bar 2a tip respectively, be provided with first through-hole 1f and second through-hole 1g on second straight board 1b and the third straight board 1c, distance between first through-hole 1f and the second through-hole 1g equals the distance between the two tip of curved bar 2a, curved bar 2a is located between first straight board 1a and the second straight board 1b, the dead lever 2b and the dead lever 2c passes first through-hole 1f and the dead lever 2c respectively, the dead lever 2b is close to the dead lever 2b and is provided with the hollow pipe sleeve 2c and is connected with the dead lever 2b through-hole 4a through-hole 1c, the dead lever is located the dead lever 2b is connected with the dead lever 4a position, the end is connected with the dead lever 4 in proper order, the end is connected with the dead lever 1b through-stop plate 1b has and the dead lever 4a 4.
When the grid-connected cabinet 7 and the grid-connected breaker 9 in the prior art are used in a matching mode, the grid-connected breaker 9 is placed in the grid-connected cabinet 7, a door lock 8 is arranged on a cabinet door 7a of the grid-connected cabinet 7, a limit hole 8b is formed in a lock tongue 8a of the door lock 8, the position of the installation backboard 3 is adjusted according to the position of the lock tongue 8a, when the door lock 8 is in a locking state, the installation backboard 3 is fixed on a grid-connected cabinet framework 7b after the position relation is determined, a fixed pipe sleeve 4 is fixed beside an opening mechanism 9a of the grid-connected breaker 9, a cable 5 is pulled, the cable 5 is pulled to move backwards through a connecting piece 6, the short rod 2b and the long rod 2c are also moved backwards, one end of the cable 5 is tied on an opening mechanism 9a of the grid-connected breaker 9 in a switching-off state, the cable 5 is in a bursting state at the moment, the door lock 7a rear locking state of the door lock 7 is ensured when the long rod 2c moves forwards, when the grid-connected cabinet 9 is in a locking state, the opening mechanism 9a is in a loosening state, the cable 5 c is moved forwards through the opening of the door lock 8b, the opening mechanism 2c is in the opening state of the door lock 8b, the arc-connected rod 2c can only can be moved forwards through the opening of the door lock 8b, and the opening mechanism 2c is moved forwards through the opening of the door lock 8b, and the opening 2c is not moved forwards, and the opening of the door lock 8 is in the opening state, and the opening 2 is in the opening state.
Example 2
Referring to fig. 1 to 8, a second embodiment of the present utility model is based on the previous embodiment.
Specifically, a square through hole 2a-1 is formed in the bottom end of the arc-shaped rod 2a, and a first clamping hole 2a-2 communicated with the square through hole 2a-1 is formed in the rod body of the arc-shaped rod 2 a.
Preferably, one side of the connecting piece 6 is a hollow cylinder 6a, the other side is a square cylinder 6b matched with the square through hole 2a-1, and a second clamping hole 6b-1 is formed in the square cylinder 6 b.
Preferably, one end of the cable 5 is positioned in the hollow cylinder 6a and is glued with the inner wall of the hollow cylinder 6a, and a bolt 2e is inserted between the second clamping hole 6b-1 on the square cylinder 6b and the first clamping hole 2a-2 on the arc rod 2 a; the square column body 6b is inserted into the square through hole 2a-1 such that the second clamping hole 6b-1 on the square column body 6b is aligned with the first clamping hole 2a-2 on the arc-shaped rod 2a, and then the plug pin 2e is inserted into the first clamping hole 2a-2 and the second clamping hole 6b-1 to connect the connecting piece 6 with the arc-shaped rod 2 a.
Preferably, the length of the short rod 2b is 20 mm-30 mm shorter than that of the long rod 2 c; since the long rod 2c needs to be inserted into the locking tongue, the length of the short rod 2b must be shorter than the long rod 2c so as not to hinder the advancement of the long rod 2 c.
Preferably, the mounting backboard 3 comprises a first mounting plate 3a attached to the surface of the second connecting plate 1e, a second mounting plate 3b and a third mounting plate 3c are arranged on two sides of the first mounting plate 3a, a working hole 3a-1 is formed in a position, corresponding to the arc-shaped rod 2a, of the first mounting plate 3a, and mounting holes 3d are formed in the second mounting plate 3b and the third mounting plate 3 c; because of the narrow space between the first straight plate 1a and the second straight plate 1b, the square column 6b of the operation auxiliary connecting piece 6 can be inserted into the square through hole 2a-1 through the operation hole 3a-1, then the bolt 2e is inserted to connect the connecting piece 6 with the arc-shaped rod 2a, and the installation backboard 3 is fixed with the grid-connected cabinet framework 7b through the installation holes 3d on the second installation plate 3b and the third installation plate 3 c.
When in use, due to the narrow space between the first straight plate 1a and the second straight plate 1b, the square column 6b of the auxiliary operation connecting piece 6 on the installation back plate 3 can be inserted into the square through hole 2a-1 and then inserted into the bolt 2e to connect the connecting piece 6 with the arc rod 2a, so that the cable 5 can pull the arc rod 2a through the connecting piece 6, the grid-connected cabinet 7 and the grid-connected circuit breaker 9 are matched with the grid-connected cabinet 7, the grid-connected circuit breaker 9 is placed in the grid-connected cabinet 7, the door 7a of the grid-connected cabinet 7 is provided with the door lock 8, the lock tongue 8a of the door lock 8 is provided with the limit hole 8b, the position of the installation back plate 3 is adjusted according to the position of the lock tongue 8a, the limit hole 8b on the lock tongue 8a can be inserted when the long rod 2c moves forwards when the door lock 8 is in a locking state, the grid-connected cabinet framework 7b is fixed through the installation hole 3d on the second installation plate 3b and the third installation plate 3c after the position relation is determined, fixing the fixed pipe sleeve 4 beside the opening mechanism 9a of the grid-connected breaker 9, pulling the cable 5, enabling the cable 5 to pull the arc-shaped rod 2a to move backwards through the connecting piece 6, enabling the short rod 2b and the long rod 2c to move backwards, tying one end of the cable 5 on the opening mechanism 9a of the grid-connected breaker 9 in a switching-off state, enabling the cable 5 to be in a tightly-collapsed state, closing the cabinet door 7a of the grid-connected cabinet 7, locking the door lock 8, enabling the cable 5 to be in a loose state when the grid-connected breaker 9 is in a switching-on state, enabling the short rod 2b to move forwards under the action of the elastic force of the spring 2d, driving the arc-shaped rod 2a and the long rod 2c to move forwards, enabling the long rod 2c to be inserted into the limiting hole 8b on the lock tongue 8a after moving forwards, enabling the door lock 8 on the cabinet door 7a to be incapable of being opened from outside, and only being capable of waiting for the grid-connected breaker 9 to be switched into the switching-off state, the door lock 8 can be opened only by driving the long rod 2c to leave the limit hole 8b through the cable 5.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (6)
1. The utility model provides a photovoltaic grid-connected cabinet operation safety guarantee device which characterized in that: including S-shaped function board (1), U-shaped bolt (2), installation backplate (3), fixed pipe box (4), and hawser (5), S-shaped function board (1) are including first straight board (1 a) along same direction parallel arrangement, second straight board (1 b), and third straight board (1 c), one side of first straight board (1 a) and second straight board (1 b) is fixed with first connecting plate (1 d), the opposite side of second straight board (1 b) and third straight board (1 c) is fixed with second connecting plate (1 e), U-shaped bolt (2) include curved bar (2 a), and be fixed in short bar (2 b) and stock (2 c) of curved bar (2 a) tip respectively, be provided with first through-hole (1 f) and second through-hole (1 g) on second straight board (1 b) and the third straight board (1 c), distance between first through-hole (1 f) and second through-hole (1 g) equals the distance between curved bar (2 a) two tip, U-shaped bolt (2) include curved bar (2 a), and be close to curved bar (1 b) and second straight board (1 c) are located on curved bar (2 c) and second straight board (1 c), the short rod (2 b) rod body between the second straight plate (1 b) and the baffle plate (2 b-1) is sleeved with a spring (2 d), a threaded hole is formed in a position, corresponding to the bottom end of the arc-shaped rod (2 a), of the first straight plate (1 a), a hollow joint (4 a) in threaded connection with the threaded hole is arranged at one end of the fixed pipe sleeve (4), and a cable (5) sequentially penetrates through the fixed pipe sleeve (4) and the hollow joint (4 a) and then is connected with the arc-shaped rod (2 a) through a connecting piece (6).
2. The photovoltaic grid-connected cabinet operation safety guarantee device according to claim 1, wherein: the bottom end of the arc-shaped rod (2 a) is provided with a square through hole (2 a-1), and a rod body of the arc-shaped rod (2 a) is provided with a first clamping hole (2 a-2) communicated with the square through hole (2 a-1).
3. The photovoltaic grid-connected cabinet operation safety guarantee device according to claim 2, wherein: one side of the connecting piece (6) is a hollow cylinder (6 a), the other side is a square cylinder (6 b) which is matched with the square through hole (2 a-1), and a second clamping hole (6 b-1) is formed in the square cylinder (6 b).
4. A photovoltaic grid-tie cabinet operation safety device as claimed in claim 3, wherein: one end of the cable (5) is positioned in the hollow cylinder (6 a) and is glued with the inner wall of the hollow cylinder (6 a), and a second clamping hole (6 b-1) on the square cylinder (6 b) and a first clamping hole (2 a-2) on the arc-shaped rod (2 a) are internally provided with a bolt (2 e).
5. The photovoltaic grid-connected cabinet operation safety guarantee device according to claim 1, wherein: the length of the short rod (2 b) is 20 mm-30 mm shorter than that of the long rod (2 c).
6. The photovoltaic grid-connected cabinet operation safety guarantee device according to claim 1, wherein: the mounting backboard (3) comprises a first mounting plate (3 a) attached to the surface of a second connecting plate (1 e), a second mounting plate (3 b) and a third mounting plate (3 c) are arranged on two sides of the first mounting plate (3 a), an operation hole (3 a-1) is formed in the position, corresponding to the arc-shaped rod (2 a), of the first mounting plate (3 a), and mounting holes (3 d) are formed in the second mounting plate (3 b) and the third mounting plate (3 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322327513.0U CN220964115U (en) | 2023-08-29 | 2023-08-29 | Photovoltaic grid-connected cabinet operation safety guarantee device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322327513.0U CN220964115U (en) | 2023-08-29 | 2023-08-29 | Photovoltaic grid-connected cabinet operation safety guarantee device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220964115U true CN220964115U (en) | 2024-05-14 |
Family
ID=91005699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322327513.0U Active CN220964115U (en) | 2023-08-29 | 2023-08-29 | Photovoltaic grid-connected cabinet operation safety guarantee device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220964115U (en) |
-
2023
- 2023-08-29 CN CN202322327513.0U patent/CN220964115U/en active Active
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