CN114976929B

CN114976929B - Block terminal for photovoltaic microgrid

Info

Publication number: CN114976929B
Application number: CN202210892615.4A
Authority: CN
Inventors: 赵坤; 张志伟
Original assignee: Jiangsu Yingtuo Power Technology Co Ltd
Current assignee: Jiangsu Yingtuo Power Technology Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-10-21
Anticipated expiration: 2042-07-27
Also published as: CN114976929A

Abstract

The invention relates to the technical field of photovoltaic equipment, in particular to a distribution box for a photovoltaic microgrid, which comprises: distribution box, the wire holder, auto-lock joint Assembly and unsteady joint chair, wire holder fixed mounting has wiring end row in distribution box's inside and fixed surface, and the surface of wiring end row is equipped with a plurality of grafting ends, and auto-lock joint Assembly can dismantle with the wire holder and be connected, and unsteady joint chair includes fixing base, installation link plate and damping guide arm, the both ends of damping guide arm respectively with the surface swing joint of fixing base and installation link plate, one side of installation link plate is connected with distribution box's fixed surface. According to the invention, by arranging the novel wiring connection structure, the locking piece on the surface of the connector main body is connected with the locking part of the inserting end, after the connector connecting line is inserted, the movable locking rod is ejected out by rotating the connector main body and locked with the inner side of the inserting end, so that the joint strength is improved, the problem of wire loosening caused by external traction and structural vibration is avoided, and the wiring strength is improved, and the maintenance workload is reduced.

Description

Block terminal for photovoltaic microgrid

Technical Field

The invention relates to the technical field of photovoltaic equipment, in particular to a distribution box for a photovoltaic microgrid.

Background

The micro-grid is a small power generation and distribution system formed by collecting a distributed power supply, an energy storage device, an energy conversion device and related load, monitoring and protection devices, and is an autonomous system capable of realizing self-control, protection and management. The distribution box for the photovoltaic micro-grid is diversified, and the distribution box is formed by assembling switch equipment, a measuring instrument, a protective electrical appliance and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement to form a low-voltage distribution device. Classified by structural features and use: (1) Fixed panel switch cabinets are often referred to as switchboards or switchboards. (2) The drawer type switch cabinet is a closed shell made of steel plates, and electric elements of an incoming and outgoing line loop are all installed in an extractable drawer to form a functional unit capable of completing a certain power supply task.

Because electrical components in present block terminal are numerous, the structure is complicated, so that wiring in the block terminal is complicated, intertwine, lead to the circuit short circuit easily, cause the inside electrical components of block terminal to burn out, and the line joint structure is because of the low sealed effect influence such as poor of joint firmness, lead to easily because of the gravity tractive of external equipment vibrations or wiring leads to appearing the separation clearance between the joint in the work is arranged to the weak current, influence the transmission of weak current, lead to the problem that signal transmission delays or can't transmit, increase maintenance work volume. In view of this, research improvement is carried out to current problem, provides a block terminal for photovoltaic microgrid to solve the problem that the block terminal that exists at present leads to because of the influence of external vibration the end of a thread contact effect is poor, aims at through this technique, reaches the purpose of solving the problem and improving practical value nature.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the invention is as follows: a distribution box for a photovoltaic microgrid, comprising: the wiring seat is fixedly arranged in the power distribution box body, the surface of the wiring end row is provided with a plurality of inserting end heads, the self-locking joint assembly is detachably connected with the wiring seat, the floating joint seat comprises a fixed seat, an installing hanging plate and a damping guide rod, two ends of the damping guide rod are respectively movably connected with the surfaces of the fixed seat and the installing hanging plate, and one side of the installing hanging plate is fixedly connected with the surface of the power distribution box body; the self-locking connector assembly comprises a connector main body, a cable clamp, a plug and a locking piece, wherein one end of the connector main body is fixedly connected with a protective sleeve seat sleeved on the periphery of the plug and the locking piece, the inner side of the inserting end is provided with a jack matched with the plug, the inner side of the jack is provided with a locking groove matched with the locking piece, the locking piece is fixedly installed at one end of the connector main body, the locking piece comprises a driving disc fixedly connected with the connector main body and the plug end portion, a fixed guide seat and a moving locking bar slidably installed on the surface of the fixed guide seat, one end of the moving locking bar is fixedly provided with a pin rod, the surface of the driving disc is provided with a plurality of deflection guide grooves, and the surface of the driving disc is provided with a line passing hole.

The present invention in a preferred example may be further configured to: the surface of distribution box is equipped with sealed door plant, the one end of grafting end runs through the surface of distribution box and exposes in the outside of distribution box, the mutual butt in one side of protective sheath seat and the surface of distribution box.

The present invention in a preferred example may be further configured to: the plug is characterized in that a plurality of male electrode pins electrically connected with the wiring terminal row power connection end are fixedly mounted on the inner side of the jack, pin angle jacks are formed in the surface of the plug, female electrode pins are arranged on the surface of the plug, a plurality of electrode connecting lugs are arranged inside the connector main body, and wires penetrating through the wire holes and connected with the female electrode pins in a welded mode are arranged at the end portions of the electrode connecting lugs.

The present invention in a preferred example may be further configured to: the surface of the fixed guide seat is provided with a rotating sleeve which is sleeved on the inner side of the wire passing hole on the surface of the driving disk, the fixed guide seat and the driving disk are positioned on the same straight line with the circle centers of the connector main body and the plug, and the number of the moving lock rods is a plurality and is uniformly distributed in the circumferential direction.

The present invention in a preferred example may be further configured to: the motion locking rod is of a T-shaped rod structure, the outer side of the motion locking rod is arc-shaped, and the width of the jack is the same as the thickness of the motion locking rod.

The invention in a preferred example may be further configured to: the deflecting guide groove is arc-shaped, and the pin rod is sleeved on the inner side of the deflecting guide groove in a sliding mode.

The invention in a preferred example may be further configured to: the damping guide rod is of a damping telescopic rod structure, and a spring which is mutually abutted to the surfaces of the fixed seat and the damping guide rod is movably sleeved on the surface of the damping guide rod.

The present invention in a preferred example may be further configured to: the surface of the fixed seat is rotatably provided with a connecting rod, the other end of the connecting rod is movably connected with the surface of the mounting hanging plate, and the connecting rod and the damping guide rod are arranged in a parallel direction.

The beneficial effects obtained by the invention are as follows:

1. according to the invention, by arranging the novel wiring connection structure, the locking piece on the surface of the connector main body is connected with the locking part of the inserting end, after the connector connecting line is inserted, the moving lock rod is ejected out by rotating the connector main body and is locked with the inner side of the inserting end, so that the connection strength is improved, the problem of wire loosening caused by external traction and structural vibration is avoided, and the wiring strength is improved and the maintenance workload is reduced.

2. According to the invention, the floating connection seat structure is arranged for floating installation of the distribution box body, the distribution box body is suspended on the installation surface by the movable traction of the damping guide rod on the top surface of the distribution box body, and the vibration is absorbed through the damping conduction of the damping guide rod in the external vibration, so that the overall vibration of the distribution box body is reduced, and the protection effect on internal devices and wiring of the distribution box body is improved.

3. According to the invention, the fixed guide seat is arranged on the deflection type driving structure of the driving disc, after wiring is completed, the driving disc is driven to rotate relative to the fixed guide seat by manually rotating the joint main body, so that the movable locking rod is driven to eject and engage and lock the inner side of the plug-in end, the operation is simple and convenient, and the quick mounting and dismounting of the wiring end are realized.

Drawings

FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;

FIG. 2 is a schematic diagram of a wire holder according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a self-locking joint assembly according to one embodiment of the present invention;

FIG. 4 is a schematic view of a wire holder and self-locking tab assembly according to one embodiment of the present invention;

FIG. 5 is a schematic diagram of a latch according to an embodiment of the present invention;

FIG. 6 is an exploded view of a latch according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a floating mount according to an embodiment of the invention.

Reference numerals:

100. a distribution box body; 110. a sealing door panel;

200. a wire holder; 210. a terminal row; 220. inserting an end socket; 221. a locking groove; 222. a jack;

300. a self-locking joint assembly; 310. a connector body; 320. a cable clamp; 330. a plug; 340. a locking member; 331. a protective sleeve base; 341. a guide seat; 342. a drive plate; 343. a moving lock lever; 344. a deflection guide groove; 345. a pin rod; 346. a wire passing hole;

400. a floating connection seat; 410. a fixed seat; 420. mounting a hanging plate; 430. a damping guide rod; 411. a connecting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

The following describes a distribution box for a photovoltaic microgrid according to some embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1 to 7, the distribution box for a photovoltaic microgrid provided by the present invention includes: the self-locking connector assembly 300 comprises a connector main body 310, a cable clamp 320, a plug 330 and a locking piece 340, one end of the connector main body 310 is fixedly connected with a protective sleeve base 331 sleeved on the periphery of the plug 330 and the locking piece 340, the inner side of the plugging end 220 is provided with a jack 222 matched with the plug 330, the inner side of the jack 222 is provided with a locking groove 221 matched with the locking piece 340, the locking piece 340 is fixedly arranged at one end of the connector main body 310, the locking piece 340 comprises a locking rod 342 fixedly connected with the end parts of the connector main body 310 and the plug 330, a driving disc 342 is arranged at one end of the locking rod 341, and a deflection guide groove 342 for arranging a driving disc is arranged at one end of the locking rod 341 and provided with a surface fixing guide hole 345 for arranging a driving disc 342.

In this embodiment, the surface of the distribution box 100 is provided with the sealing door panel 110, one end of the plugging terminal 220 penetrates through the surface of the distribution box 100 and is exposed outside the distribution box 100, and one side of the protection cover 331 abuts against the surface of the distribution box 100.

Specifically, external wiring is performed through the exposed insertion end 220, and the wiring holder 200 is wrapped and protected by the protective sleeve holder 331 after being engaged with the self-locking connector assembly 300, so that waterproof and dustproof protection is performed.

In this embodiment, a plurality of male electrode pins electrically connected to the electrical terminals of the terminal strip 210 are fixedly mounted inside the insertion holes 222, a pin angle insertion hole and a female electrode pin are formed on the surface of the plug 330, a plurality of electrode lugs are arranged inside the connector body 310, and a lead wire penetrating through the wire passing hole 346 and connected to the female electrode pin in a welding manner is arranged at the end of each electrode lug.

Specifically, the electrode lug is welded with an external cable to realize the installation of the connector main body 310, the pin angle insertion hole on the surface of the plug 330 is inserted by the pin foot of a male electrode to be sleeved with the pin foot of a female electrode, so that the electrode connection of the wire holder 200 and the self-locking connector assembly 300 is realized, the pin 330 is inserted into the pin of the insertion end 220 to fix the plug 330, so that the driving disc 342 and the fixed guide seat 341 on the surfaces of the connector main body 310 and the plug 330 are subjected to relative deflection movement, the pin rod 345 slides in the deflection guide groove 344 to enable the movable locking rod 343 to slide and eject out on the surface of the fixed guide seat 341 to be connected with the insertion hole 222, and the quick assembly and disassembly of the terminal are realized.

In this embodiment, the surface of the fixed guide seat 341 is provided with a rotating sleeve sleeved inside the wire passing hole 346 on the surface of the driving disk 342, the fixed guide seat 341 and the driving disk 342 are located on the same straight line with the centers of the connector main body 310 and the plug 330, and the number of the movable lock rods 343 is several and is uniformly distributed in the circumferential direction.

Further, the moving lock bar 343 has a T-shaped bar structure, the outer side of the moving lock bar 343 is arc-shaped, and the width of the insertion hole 222 is the same as the thickness of the moving lock bar 343.

Specifically, the driving disk 342 and the fixed guide 341 perform relative deflecting motion, the pin rod 345 slides inside the deflecting guide 344, so that the moving lock rod 343 slides on the surface of the fixed guide 341 to eject out to engage with the insertion hole 222, and the plurality of moving lock rods 343 eject out to engage with the insertion hole 222 to improve the locking stability.

In this embodiment, the deflecting guide groove 344 is arc-shaped, and the pin 345 is slidably fitted inside the deflecting guide groove 344.

Specifically, the relative rotation between the connector body 310 and the plug 330 is changed into the driving force of the movable lock bar 343 sliding along the surface of the guide seat 341 in the radial direction by the relative movement of the deflecting guide groove 344 and the pin rod 345, so that the movable lock bar 343 is ejected and retracted, and the quick locking and unlocking of the connection between the wire holder 200 and the self-locking connector assembly 300 is realized.

In this embodiment, the damping guide rod 430 is a damping telescopic rod structure, and a spring abutting against the surfaces of the fixing base 410 and the damping guide rod 430 is movably sleeved on the surface of the damping guide rod 430.

Further, the surface of the fixing base 410 is rotatably provided with a connecting rod 411, the other end of the connecting rod 411 is movably connected with the surface of the mounting hanging plate 420, and the connecting rod 411 and the damping guide rod 430 are arranged in parallel.

Specifically, the block terminal is fixed in the wall through fixing base 410, realizes the fixed of distribution box 100 under damping guide rod 430 and connecting rod 411 tractive installation link plate 420 effect, and damping guide rod 430's activity tractive makes distribution box 100 hang in the installation face, absorbs and slows down the kinetic energy transmission by damping guide rod 430's damping, keeps distribution box 100's stability to carry out the shock attenuation protection to inside device.

The working principle and the using process of the invention are as follows:

when the distribution box for the photovoltaic microgrid is used, in a wiring operation, the self-locking connector assembly 300 is in welding connection with an external cable, and the surface cable clamp 320 is used for clamping the cable, so that the self-locking connector assembly 300 is prevented from being detached from the cable, the surface terminal row 210 of the wire holder 200 is used for electrically connecting an internal component of the distribution box with the plugging end 220, the distribution box is fixed on a wall surface through the fixing seat 410, the distribution box 100 is fixed under the action of the damping guide rod 430 and the connecting rod 411, the hanging plate 420 is pulled and installed, the movable pulling of the damping guide rod 430 enables the distribution box 100 to be hung on an installation surface, and oscillation absorption is carried out through damping conduction of the damping guide rod 430 in external oscillation, so that the overall vibration of the distribution box 100 is reduced, and the protection effect on the internal component of the distribution box 100 and wiring is improved;

the plug 330 is inserted into the jack 222 so that pins in the jack 222 enter the plug 330 to be communicated with the cable for electrodes, the protective sleeve base 331 is sleeved outside the plug end 220 to achieve waterproof and dustproof protection, one end of the manual rotary joint main body 310 is fixed by inserting the plug 330 into the pins of the plug end 220 so that the driving disc 342 and the fixed guide base 341 on the surfaces of the joint main body 310 and the plug 330 are subjected to relative deflection movement, the pin rod 345 slides inside the deflection guide groove 344 to enable the moving lock rod 343 to be ejected out from the surface of the fixed guide base 341 to be connected with the jack 222, locking of the plug end 220 and the self-locking joint component 300 is achieved, the self-locking joint component 300 can be pulled out only by reversely rotating the joint main body 310 during disassembly, and quick disassembly and assembly of the self-locking joint component 300 are achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a block terminal for photovoltaic microgrid which characterized in that includes: the wiring terminal comprises a power distribution box body (100), a wiring seat (200), a self-locking joint assembly (300) and a floating joint seat (400), wherein the wiring seat (200) is fixedly arranged in the power distribution box body (100) and is fixedly provided with a wiring terminal row (210), the surface of the wiring terminal row (210) is provided with a plurality of inserting ends (220), the self-locking joint assembly (300) is detachably connected with the wiring seat (200), the floating joint seat (400) comprises a fixed seat (410), an installation hanging plate (420) and a damping guide rod (430), two ends of the damping guide rod (430) are respectively movably connected with the fixed seat (410) and the installation hanging plate (420), and one side of the installation hanging plate (420) is fixedly connected with the surface of the power distribution box body (100);

the self-locking connector assembly (300) comprises a connector main body (310), a cable clamp (320), a plug (330) and a locking piece (340), wherein one end of the connector main body (310) is fixedly connected with a protective sleeve seat (331) sleeved on the periphery of the plug (330) and the locking piece (340), a jack (222) matched with the plug (330) is arranged on the inner side of the inserting end (220), a locking groove (221) matched with the locking piece (340) is arranged on the inner side of the jack (222), the locking piece (340) is fixedly installed at one end of the connector main body (310), the locking piece (340) comprises a driving disc (342) and a fixed guide seat (341) which are respectively fixedly connected with the end parts of the connector main body (310) and the plug (330) and a moving locking bar (341) which is slidably installed on the surface of the fixed guide seat (341), a pin rod (345) is fixedly installed at one end of the moving locking bar (343), a plurality of guide grooves (344) are formed on the surface of the driving disc (342), a plurality of terminal holes (346) are formed on the surface of the driving disc (342), a plurality of terminal pins (222) are fixedly installed on the inner side of the jack, a plurality of terminal pins of the pin rows of the electric pins (210), and a plurality of electric pins connected with the electric pins of the electric pins (310 are arranged inside of the electric contact pin rows, and a plurality of the electric contact pin rows, the end part of the electrode connecting lug is provided with a lead which penetrates through the wire hole (346) and is connected with the female electrode pin in a welding way, the deflection guide groove (344) is arc-shaped, and the pin rod (345) is sleeved on the inner side of the deflection guide groove (344) in a sliding way.

2. The distribution box for the photovoltaic microgrid of claim 1, characterized in that a sealing door panel (110) is arranged on the surface of the distribution box body (100), one end of the plug-in terminal (220) penetrates through the surface of the distribution box body (100) and is exposed outside the distribution box body (100), and one side of the protective sleeve seat (331) is abutted against the surface of the distribution box body (100).

3. The distribution box for the photovoltaic microgrid of claim 1, characterized in that a rotating sleeve sleeved inside a wire passing hole (346) on the surface of the driving disk (342) is arranged on the surface of the guide seat (341), the centers of the guide seat (341) and the driving disk (342), the connector main body (310) and the plug (330) are located on the same straight line, and the number of the movable locking rods (343) is several and is uniformly distributed in the circumferential direction.

4. The distribution box for the photovoltaic microgrid of claim 1, characterized in that the moving lock bar (343) is of a T-shaped bar structure, the outer side of the moving lock bar (343) is arc-shaped, and the width of the insertion hole (222) is the same as the thickness of the moving lock bar (343).

5. The distribution box for the photovoltaic microgrid of claim 1, wherein the damping guide rod (430) is of a damping telescopic rod structure, and a spring which is abutted to the surfaces of the fixed seat (410) and the damping guide rod (430) is movably sleeved on the surface of the damping guide rod (430).

6. The distribution box for the photovoltaic microgrid of claim 1, characterized in that a connecting rod (411) is rotatably mounted on the surface of the fixed seat (410), the other end of the connecting rod (411) is movably connected with the surface of the mounting hanging plate (420), and the connecting rod (411) and the damping guide rod (430) are arranged in parallel.