CN220190826U

CN220190826U - Waterproof junction box

Info

Publication number: CN220190826U
Application number: CN202321348339.1U
Authority: CN
Inventors: 李霖; 匡元海; 李义鹏; 袁磊; 汤晨
Original assignee: Jiangsu Haitian Microelectronics Corp
Current assignee: Jiangsu Haitian Microelectronics Corp
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-12-15
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a waterproof junction box, which comprises a junction box body and a sealing box cover arranged opposite to the junction box body, wherein four corners of the bottom of the inner wall of the junction box body are fixedly provided with inserting and buckling columns, the outer side of the junction box body is fixedly provided with a hanging and buckling assembly, one end of the junction box body is fixedly provided with a waterproof joint for wiring a battery plate, four corners of the inner side of the sealing box cover are fixedly provided with inserting and buckling seats, the outer side of the sealing box cover is fixedly provided with uniformly distributed hanging and buckling seats, and the periphery of the inner side of the sealing box cover is fixedly provided with a sealing rubber cushion.

Description

Waterproof junction box

Technical Field

The utility model relates to the technical field of solar panel wiring, in particular to a waterproof junction box.

Background

Solar panels are devices that directly or indirectly convert solar radiation energy into electrical energy by absorbing sunlight, either through a photoelectric effect or a photochemical effect. The junction box is used for connecting the battery plates and converging current, and is widely applied to industries such as solar equipment, new energy power generation equipment, distributed power sources and matched equipment thereof. At present, a common waterproof junction box for a solar cell is mainly made of plastic and integrally formed by pressing. The junction box needs to be communicated with the solar cell panel and installed outdoors, so that the waterproof sealing performance is particularly important.

Through searching, the solar panel waterproof junction box with the application number of 202122322607.X comprises a box body, wherein an inward concave accommodating cavity is formed on the surface of the box body; the connecting component is arranged in the accommodating cavity and comprises a connecting plate and a wire, wherein the connecting plate and the wire are fixedly arranged in the accommodating cavity; through above-mentioned scheme, realize being located the coupling assembling of holding cavity and realize sealed waterproof effect under the condition of not pouring glue to the terminal box easy to assemble and dismantlement. However, the applicant believes that this common type of waterproof junction box still suffers from the following disadvantages:

when the box cover is installed, the screw is still needed to be fastened and fixed, water seepage and water leakage are easy to occur to the positions of the screw holes, the difficulty of disassembly, assembly and maintenance is increased, and the overall waterproof sealing performance is not obvious.

Disclosure of Invention

The utility model aims to provide a waterproof junction box so as to solve the problems of poor waterproof performance and high disassembly and maintenance difficulty of the existing junction box in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the waterproof junction box comprises a junction box body and a sealing box cover which is opposite to the junction box body, wherein buckling columns are fixedly arranged at four corners of the bottom of the inner wall of the junction box body, a buckling component is fixedly arranged at the outer side of the junction box body, a waterproof connector for connecting a battery plate is fixedly arranged at one end of the junction box body, buckling seats are fixedly arranged at four corners of the inner side of the sealing box cover, uniformly distributed buckling seats are fixedly arranged at the outer side of the sealing box cover, and sealing rubber gaskets are fixedly arranged at the periphery of the inner side of the sealing box cover; the mode that the eye-splice fastening and the hanging-splice locking are combined is adopted, the sealing rubber cushion structure is matched, the junction box is closed and installed, the junction box is not required to be fastened by using screws, namely, the junction box is convenient to disassemble and assemble, later maintenance and overhaul are convenient, the waterproof joint is matched, waterproof sealing performance of the junction box can be remarkably improved, and the service life is longer.

Preferably, the middle part fixed mounting of terminal box body inner wall has condenser assembly jig and circuit board mounting bracket, and the terminal box inner space layout who makes is more reasonable.

Preferably, the waterproof joint comprises a waterproof shell and an inner guide core arranged in the middle of the waterproof shell, and an inner insertion cylinder is fixedly arranged on the outer side of the waterproof shell, so that the waterproof joint is convenient to use.

Preferably, the outside of waterproof casing and interpolation section of thick bamboo junction is fixed and is provided with the sealing gum ring, the inboard of waterproof casing is fixed and is provided with waterproof inner pad, is favorable to improving the leakproofness of joint department, more safe and reliable.

Preferably, the inboard of interior guide core is fixed and is provided with the wire, the one end fixed mounting of wire has the connector lug, is convenient for quick wiring, operation convenient to use.

Preferably, the hanging buckle components and the hanging buckle seats are arranged in a one-to-one opposite mode, the inserting buckle columns and the inserting buckle seats are arranged in a one-to-one opposite mode, screws are not required to be used for fastening, and therefore disassembly and assembly are convenient, and later maintenance and overhaul are convenient.

Compared with the prior art, the utility model has the beneficial effects that: this waterproof terminal box overall structure design is simple, low in production cost adopts the eye-splice to tightly with hang the mode that detains the locking and combine together, cooperation sealed cushion structure carries out the sealed installation of terminal box, need not to use the screw to fasten, makes things convenient for the dismouting promptly, the maintenance of the later stage of being convenient for overhauls, cooperation waterproof joint can show the waterproof leakproofness that improves the terminal box again, and life is longer, safe and reliable.

Drawings

Fig. 1 is a schematic structural view of a waterproof junction box of the present utility model;

FIG. 2 is a front cross-sectional view of the seal box cover of the present utility model;

fig. 3 is a front cross-sectional view of the waterproof joint of the present utility model;

fig. 4 is an enlarged view of a portion a of the present utility model.

In the figure: 1. a junction box body; 2. sealing the box cover; 3. a waterproof joint; 31. a waterproof case; 32. an inner guide core; 33. a wire; 34. a connector lug; 35. a sealant ring; 36. an inner insertion tube; 37. a waterproof inner pad; 4. a buckle column; 5. a capacitor mounting rack; 6. a circuit board mounting rack; 7. a hanging buckle component; 8. a hanging buckle seat; 9. a buckle seat; 10. and (5) sealing the rubber cushion.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-4, the utility model provides a waterproof junction box, which comprises a junction box body 1 and a sealing box cover 2 arranged opposite to the junction box body 1, wherein four corners of the bottom of the inner wall of the junction box body 1 are fixedly provided with buckling columns 4, the outer side of the junction box body 1 is fixedly provided with buckling components 7, one end of the junction box body 1 is fixedly provided with a waterproof joint 3 for connecting a battery plate, four corners of the inner side of the sealing box cover 2 are fixedly provided with buckling seats 9, the outer side of the sealing box cover 2 is fixedly provided with uniformly distributed buckling seats 8, the periphery of the inner side of the sealing box cover 2 is fixedly provided with sealing rubber gaskets 10, the buckling components 7 and the buckling seats 8 are arranged opposite to each other, and the buckling columns 4 and the buckling seats 9 are arranged opposite to each other;

when the connector box is used, the connector box body 1 is required to be maintained and overhauled, the hanging buckle assembly 7 is only required to be sequentially buckled to enable the hanging buckle assembly 7 to be separated from the hanging buckle seat 8 at the corresponding position, then the sealing box cover 2 is buckled along the joint between the sealing box cover 2 and the connector box body 1, the sealing box cover 2 can be integrally opened at the moment, the connector box is not required to be fastened by using a screw, and therefore the connector box is convenient to assemble and disassemble and convenient to maintain and overhaul in the later period.

Referring to fig. 1, further, a capacitor assembly frame 5 and a circuit board assembly frame 6 are fixedly installed in the middle of the inner wall of the junction box body 1;

during the use, the installation that provides for circuit board and condenser that solar cell panel was used for the inside space of terminal box body 1 distributes more rationally compactly, and it is more convenient to maintain the maintenance.

Referring to fig. 1 and 3, further, the waterproof connector 3 includes a waterproof housing 31 and an inner conductive core 32 mounted in the middle of the waterproof housing 31, an inner insertion tube 36 is fixedly disposed on the outer side of the waterproof housing 31, a sealant ring 35 is fixedly disposed on the outer side of a joint between the waterproof housing 31 and the inner insertion tube 36, a waterproof inner pad 37 is fixedly disposed on the inner side of the waterproof housing 31, a conductive wire 33 is fixedly disposed on the inner side of the inner conductive core 32, and a connector lug 34 is fixedly mounted on one end of the conductive wire 33;

when the solar cell panel is used, the lead 33 and the connector lug 34 are positioned in the junction box body 1, after the circuit board and the capacitor for the solar cell panel are installed in the junction box body 1, the lead 33 and the connector lug 34 can be connected with the circuit board, the inner inserting cylinder 36 can be directly inserted into the joint of the solar cell panel, and the sealing glue ring 35 and the waterproof inner pad 37 are respectively arranged on the outer side and the inner side of the joint, so that the waterproof sealing effect can be achieved, and the waterproof performance of the joint is improved.

When the embodiment of the utility model is used, the following steps are adopted: the circuit board and the capacitor for the solar cell panel are respectively installed in the junction box body 1, after being fixed, the sealing box cover 2 is just tightly pressed against the junction box body 1, at the moment, the inserting and buckling column 4 is just right opposite to be inserted into the inserting and buckling seat 9 to realize primary closing of the sealing box cover 2, then the hanging and buckling assembly 7 is sequentially buckled, the hanging and buckling assembly 7 is hung and buckled on the hanging and buckling seat 8 at the corresponding position, after closing tightly, the sealing rubber gasket 10 is tightly attached to the connecting edge of the junction box body 1 to realize sealing of the junction box body 1, then the junction box can be spliced through the waterproof joint 3, the overall waterproof sealing performance is obvious, the junction box is formed by integrally die-casting plastic materials, and the production cost is low.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a waterproof terminal box, includes terminal box body (1) and just to sealed lid (2) that terminal box body (1) set up, its characterized in that: the waterproof junction box comprises a junction box body (1), wherein four corners of the bottom of the inner wall of the junction box body (1) are fixedly provided with eye-splice columns (4), the outer side of the junction box body (1) is fixedly provided with a hanging buckle assembly (7), one end of the junction box body (1) is fixedly provided with a waterproof joint (3) for wiring a battery plate, four corners of the inner side of a sealing box cover (2) are fixedly provided with eye-splice seats (9), the outer side of the sealing box cover (2) is fixedly provided with evenly distributed hanging buckle seats (8), and the periphery of the inner side of the sealing box cover (2) is fixedly provided with sealing rubber gaskets (10).

2. A waterproof junction box according to claim 1, wherein: the middle part of the inner wall of the junction box body (1) is fixedly provided with a capacitor assembly frame (5) and a circuit board mounting frame (6).

3. A waterproof junction box according to claim 1, wherein: the waterproof connector (3) comprises a waterproof shell (31) and an inner guide core (32) arranged in the middle of the waterproof shell (31), and an inner insertion cylinder (36) is fixedly arranged on the outer side of the waterproof shell (31).

4. A waterproof junction box according to claim 3, wherein: the waterproof sealing device is characterized in that a sealing glue ring (35) is fixedly arranged on the outer side of the joint of the waterproof shell (31) and the inner insertion cylinder (36), and a waterproof inner pad (37) is fixedly arranged on the inner side of the waterproof shell (31).

5. A waterproof junction box according to claim 3, wherein: the inner side of the inner guide core (32) is fixedly provided with a wire (33), and one end of the wire (33) is fixedly provided with a connector lug (34).

6. A waterproof junction box according to claim 1, wherein: the hanging buckle components (7) are arranged opposite to the hanging buckle seats (8), and the inserting buckle columns (4) are arranged opposite to the inserting buckle seats (9).