CN219874960U

CN219874960U - General-distribution type photovoltaic junction box

Info

Publication number: CN219874960U
Application number: CN202320733616.4U
Authority: CN
Inventors: 谷清; 王怡
Original assignee: Ningbo Lihui Photovoltaic Technology Co ltd
Current assignee: Ningbo Lihui Photovoltaic Technology Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-10-20
Anticipated expiration: 2033-04-06

Abstract

The utility model relates to the technical field of photovoltaic connectors, and discloses a general photovoltaic junction box which comprises a junction box, wherein a wire fixing ring is fixedly connected to the outer wall of the junction box, a connecting wire is fixedly connected to the wire fixing ring, a connector A is fixedly connected to the connecting wire, a connector B is fixedly connected to the connecting wire, and a cover plate is arranged above the junction box. Through setting up the padlock device and fixing apron and terminal box through the buckle, adopt the cross screwdriver to rotate the cross swivel, the cross swivel rotates and drives the tooth row simultaneously and move down, and the tooth row drives dead lever extrusion reset spring telescopic link and shortens simultaneously tapered end and move down, loosens cross swivel reset spring promotion tooth row and carries out state restoration after the apron gomphosis, and the tapered end passes the buckle and fixes the apron for the device is whole to be fixed from inside, prevents that external force from influencing and leads to the apron to open, makes the holistic stability of device promote.

Description

General-distribution type photovoltaic junction box

Technical Field

The utility model relates to the technical field of photovoltaic connectors, in particular to a general-purpose photovoltaic junction box.

Background

Photovoltaic junction boxes are electrical connector components that connect the power generated by a solar cell to external wiring, the roles of which include enhancing the safety performance of the assembly and sealing the assembly current output portion (i.e., lead portion). The photovoltaic junction box is generally composed of a box cover, a box body, a wiring terminal, a diode, a cable and a connector, wherein the shell has ageing resistance and ultraviolet resistance and has higher requirements on waterproof sealing, electric shock resistance and insulation protection performance.

For example, the Chinese patent publication number discloses the following technical scheme: at present, a glue filling design is generally used for the photovoltaic junction box so as to realize the functions of sealing, waterproofing, fixing and the like of internal components, namely the glue filling photovoltaic junction box. For example, in order to increase the tightness and the thermal conductivity of the photovoltaic junction box, the sealing ring is generally placed in the box cover of the junction box and filled with sealant, and the sealing ring can play a role in sealing a gap at the joint of the box cover and the box body, but the sealing ring is changed along with time and exposed to the air environment, even used in the open air environment, and the sealing ring becomes weak when aged and deformed. The sealant has good isolation sealing and heat conduction functions, but because the sealant is influenced by external environment, aging and cracking can be generated along with the use time, and water vapor enters the electronic component mounting area along the cracking gap, so that the electronic component in the junction box is sealed singly through the sealing ring or the sealant, and the potential safety hazard of wet leakage caused by corrosion of the electronic component by the water vapor still exists along with the change of time.

However:

the use scene of the photovoltaic connection box is mainly outdoor scene, and in the above-mentioned circumstances, the photovoltaic connection box can receive erosion such as rainwater and natural oxidation to lead to box body structure loose and cause box body to scatter and lead to the electron components and parts such as diode to expose outside the box body and lead to the accessory ageing in the terminal box.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a general-purpose photovoltaic junction box. The box body structure is characterized in that the cover plate of the box body can be changed into a lifting type and locked by the buckling device and the pushing device, so that the box body structure is not greatly changed under the influence of certain external force, the stability of the box body is improved, enough space is reserved for accessories in the box body, and the wild-type matching performance of the box body is stronger.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lead to join in marriage formula photovoltaic terminal box, includes the terminal box, fixedly connected with solid line ring on the outer wall of terminal box, fixedly connected with connecting wire on the solid line ring, fixedly connected with connector A on the connecting wire, fixedly connected with connector B on the connecting wire, the top of terminal box is provided with the apron, the inside of terminal box is provided with the padlock device, the padlock device includes the cross swivel, the cross swivel passes through the bearing rotation to be connected on the outer wall of terminal box, be connected with gear S through the bearing rotation on the inner wall of terminal box, just gear S and cross swivel fixed connection, fixedly connected with solid fixed ring on the bottom inner wall of terminal box, gu fixed ring top fixedly connected with telescopic link, gu the fixed cover is equipped with reset spring on the telescopic link, fixedly connected with tooth row on the outer wall of dead lever, fixedly connected with tapered end in the top of dead lever, fixedly connected with buckle on the bottom outer wall of apron, the inside of terminal box is provided with pushing and stretching device.

Preferably, the number of the baffles is two, and the longest moving position of the gear S is limited by arranging two baffles, so that the gear S cannot be separated from the gear S in the moving process.

Preferably, the pushing device comprises a limiting rod, the limiting rod is fixedly connected to the inner wall of the junction box, a pushing rod is slidably connected to the limiting rod through a sliding piece, the top of the pushing rod is fixedly connected with the cover plate, and a fixing column is fixedly connected to the outer wall of the pushing rod.

Preferably, the pushing device further comprises a motor box, the motor box is fixedly connected to the inner wall of the junction box, a motor in the motor box is fixedly connected with a rotating shaft through a coupler, a gear A is fixedly connected to the rotating shaft of the motor in the motor box, a gear B is rotatably connected to the inner wall of the junction box through a bearing, and a transmission rod is fixedly connected to the bearing of the gear B.

Preferably, the transmission rod is provided with a through groove, the transmission rod is sleeved on the fixed column through the through groove, and the transmission rod is arranged to drive the gear A to drive the gear B so that the transmission rod pushes the pushing rod to lift.

Preferably, the fixed column is fixedly connected with a limiting plate, and the transmission rod is limited on the fixed column through the limiting plate fixed on the fixed column, so that the transmission rod cannot be separated from the fixed column.

Compared with the prior art, the utility model provides the general-matching type photovoltaic junction box, which has the following beneficial effects:

1. this general formula photovoltaic terminal box through setting up the padlock device with apron and terminal box through the buckle fixed, adopts the cross screwdriver to rotate the cross swivel, and the cross swivel rotates and drives the tooth row simultaneously and move down, and the tooth row drives dead lever extrusion reset spring telescopic link and shortens simultaneously tapered end and move down, loosens cross swivel reset spring after the apron gomphosis and promotes the tooth row and carry out state restoration, and the tapered end passes the buckle and fixes the apron for the device is whole to be fixed from inside, prevents that external force from influencing to lead to the apron to open, makes the holistic stability of device promote.

2. This general formula photovoltaic terminal box is through setting up to push away and stretch the device and carry out automatic opening and shutting of apron, adopts the motor case operation to drive gear A drive gear B and rotates, and gear B drives the transfer line and rotates, and the transfer line goes up and down the catch bar under the restriction of gag lever post through logical groove and fixed column for the apron can go up and down fast and can realize the function of overhauling fast.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a front view of the present utility model;

FIG. 2 is a bottom cross-sectional view of the junction box of the present utility model;

FIG. 3 is an enlarged view of the utility model at A.

In the figure: 1. a junction box; 2. a wire fixing ring; 3. a connecting wire; 4. a connector A; 5. a connector B; 6. a cover plate; 7. a locking device; 701. a spider; 702. a gear S; 703. a fixing ring; 704. a telescopic rod; 705. a return spring; 706. a fixed rod; 707. a tooth row; 708. a lock head; 709. a clasp ring; 710. a baffle; 8. a pushing and extending device; 801. a limit rod; 802. a push rod; 803. fixing the column; 804. a motor case; 805. a gear A; 806. a gear B; 807. a transmission rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples

As shown in fig. 1-3, the utility model provides a general photovoltaic junction box, which comprises a junction box 1, a solid wire ring 2 is fixedly connected to the outer wall of the junction box 1, a connecting wire 3 is fixedly connected to the solid wire ring 2, a connector A4 is fixedly connected to the connecting wire 3, a connector B5 is fixedly connected to the connecting wire 3, a cover plate 6 is arranged above the junction box 1, a locking device 7 is arranged in the junction box 1, the locking device 7 comprises a cross swivel 701, the cross swivel 701 is rotatably connected to the outer wall of the junction box 1 through a bearing, a gear S702 is rotatably connected to the inner wall of the junction box 1 through the bearing, the gear S702 is fixedly connected to the cross swivel 701, a fixed ring 703 is fixedly connected to the inner wall at the bottom of the junction box 1, a telescopic rod 703 is fixedly connected to the top of the fixed ring 703, a reset spring 705 is fixedly sleeved on the telescopic rod 704, a fixed rod 706 is fixedly connected to the outer wall of the fixed rod 706, a lock head 708 is fixedly connected to the top of the fixed rod 706, a lock head 709 is fixedly connected to the outer wall at the bottom of the cover plate 6, a retaining ring 710 is fixedly connected to the outer wall at the bottom of the junction box 6, two gears 710 are rotatably connected to the inner walls of the junction box 1 through the gear S702, and two gear S710 are rotatably connected to the two baffles 710 are in a position of the two-stop position, and the movement of the gear S is prevented from being limited by the two gear S8, and the two baffle plates are prevented from moving.

In this embodiment, the cover plate 6 and the junction box 1 are fixed by the buckle lock device 7 through the buckle 709, the cross-shaped swivel 701 is rotated by adopting the cross-shaped screwdriver, the cross-shaped swivel 701 rotates and drives the tooth row 707 to move downwards, the tooth row 707 drives the fixing rod 706 to squeeze the restoring spring 705 to stretch the telescopic rod 704 and simultaneously the lock head 708 moves downwards, after the cover plate 6 is embedded, the restoring spring 705 of the cross-shaped swivel 701 is loosened to push the tooth row 707 to restore the state, the lock head 708 passes through the buckle 709 to fix the cover plate 6, so that the whole device is fixed from inside, the cover plate 6 is prevented from being opened due to the influence of external force, and the whole stability of the device is improved.

Examples

As shown in fig. 1-3, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the pushing device 8 comprises a limit rod 801, the limit rod 801 is fixedly connected to the inner wall of the junction box 1, a pushing rod 802 is slidably connected to the limit rod 801 through a sliding piece, the top of the pushing rod 802 is fixedly connected to the cover plate 6, a fixed column 803 is fixedly connected to the outer wall of the pushing rod 802, the pushing device 8 further comprises a motor case 804, the motor case 804 is fixedly connected to the inner wall of the junction box 1, a motor in the motor case 804 is fixedly connected with a rotating shaft through a coupler, a gear A805 is fixedly connected to the rotating shaft of the motor in the motor case 804, a gear B806 is rotatably connected to the inner wall of the junction box 1 through a bearing, a transmission rod 807 is fixedly connected to the bearing of the gear B806, a through groove is formed in the transmission rod 807, the transmission rod 807 is sleeved on the fixed column 803 through the through groove, the transmission rod 805 is fixedly connected with a limit plate on the fixed column 803, the transmission rod 803 is limited on the fixed column 803 through the limit plate fixedly connected to the fixed column 803, and the transmission rod 803 cannot be separated from the fixed column 803.

In this embodiment, by setting the pushing device 8 to automatically open and close the cover plate 6, the motor case 804 is adopted to operate to drive the gear a805 to drive the gear B806 to rotate, the gear B806 drives the transmission rod 807 to rotate, and the transmission rod 807 lifts the pushing rod 802 under the limitation of the limit rod 801 through the through groove and the fixing column 803, so that the cover plate 6 can be lifted quickly, and the function of quick maintenance can be realized.

The working principle of the general photovoltaic junction box is specifically described below.

As shown in fig. 1-3, when in use, the motor case 804 operates to drive the gear a805 to drive the gear B806 to rotate, the gear B806 drives the transmission rod 807 to rotate, the transmission rod 807 lifts the push rod 802 under the limitation of the limiting rod 801 through the through groove and the fixing column 803, the cross screw driver is matched to rotate the cross swivel 701, the cross swivel 701 rotates and drives the tooth row 707 to move downwards, the tooth row 707 drives the fixing rod 706 to squeeze the restoring spring 705 to shrink the telescopic rod 704 and simultaneously move the lock head 708 downwards, after the cover plate 6 is embedded, the restoring spring 705 of the cross swivel 701 is loosened to push the tooth row 707 to restore the state, the lock head 708 passes through the retaining ring 709 to fix the cover plate 6, so that the whole device is fixed from inside, and the cover plate 6 is prevented from being opened due to external force influence.

Claims

1. The utility model provides a general formula photovoltaic terminal box, includes terminal box (1), its characterized in that: fixedly connected with solid line ring (2) on the outer wall of terminal box (1), fixedly connected with connecting wire (3) on solid line ring (2), fixedly connected with connector A (4) on connecting wire (3), fixedly connected with connector B (5) on connecting wire (3), the top of terminal box (1) is provided with apron (6), the inside of terminal box (1) is provided with latch device (7), latch device (7) include cross swivel (701), cross swivel (701) are connected on the outer wall of terminal box (1) through the bearing rotation, be connected with gear S (702) through the bearing rotation on the inner wall of terminal box (1), just gear S (702) and cross swivel (701) fixedly connected with solid fixed ring (703) on the bottom inner wall of terminal box (1), gu fixed ring (703) top fixedly connected with telescopic link (704), gu the fixed cover is equipped with reset spring (705) on telescopic link (704), gu top (704) are connected with on the outer wall of terminal box (1) fixed connection with tooth (706), gu fixed connection with on the outer wall (706) fixed connection with tooth (706), the inside of the junction box (1) is provided with a pushing and extending device (8).

2. The wild-type photovoltaic junction box of claim 1, wherein: baffle plates (710) are fixedly connected to the tooth rows (707), and the number of the baffle plates (710) is two.

3. The wild-type photovoltaic junction box of claim 1, wherein: the pushing device (8) comprises a limiting rod (801), the limiting rod (801) is fixedly connected to the inner wall of the junction box (1), a pushing rod (802) is slidably connected to the limiting rod (801) through a sliding piece, the top of the pushing rod (802) is fixedly connected with the cover plate (6), and a fixing column (803) is fixedly connected to the outer wall of the pushing rod (802).

4. The wild-type photovoltaic junction box of claim 1, wherein: the pushing device (8) further comprises a motor box (804), the motor box (804) is fixedly connected to the inner wall of the junction box (1), a motor in the motor box (804) is fixedly connected with a rotating shaft through a coupler, a gear A (805) is fixedly connected to the rotating shaft of the motor in the motor box (804), a gear B (806) is rotatably connected to the inner wall of the junction box (1) through a bearing, and a transmission rod (807) is fixedly connected to the bearing of the gear B (806).

5. The wild-type photovoltaic junction box of claim 4, wherein: the transmission rod (807) is provided with a through groove, and the transmission rod (807) is sleeved on the fixed column (803) through the through groove.

6. A wild-type photovoltaic junction box according to claim 3, characterized in that: and the fixed column (803) is fixedly connected with a limiting plate.