CN218448642U

CN218448642U - Waterproof connection structure of power cable for photovoltaic power generation

Info

Publication number: CN218448642U
Application number: CN202222406969.1U
Authority: CN
Inventors: 刘伟春; 刘佳; 于鸿远; 戴永志; 高峰
Original assignee: Jilin Songhe Electric Power Design Consulting Co ltd
Current assignee: Jilin Songhe Electric Power Design Consulting Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-02-03
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a waterproof connection structure of power cable for photovoltaic power generation, including the photovoltaic board, the lower extreme right side of photovoltaic board is equipped with the terminal box, the lower extreme of terminal box is equipped with first connector, the inboard plug-in connection of first connector has the second connector, the outside of second connector is equipped with protection machanism, the inboard of second connector is equipped with fixed establishment, the inboard of first connector is equipped with the card hole. The above structure is adopted in the utility model, after first connector and second connector are installed, utilize outside lag and the first connecting sleeve threaded connection of second connector for extrude on the inclined plane of cover on the lower extreme inboard side direction second connector of lag, make the sealing ring extrusion on the inclined plane, still be equipped with sealed the pad between first connector and the lag simultaneously, make both ends all be in encapsulated situation about, thereby reach the effect to cable joint department water proof seal.

Description

Waterproof connection structure of power cable for photovoltaic power generation

Technical Field

The utility model belongs to the technical field of the photovoltaic power generation installation, in particular to waterproof connection structure of power cable for photovoltaic power generation.

Background

Photovoltaic panel assemblies are power generation devices that produce direct current upon exposure to sunlight and are comprised of thin solid photovoltaic cells made almost entirely of semiconductor materials.

It all is equipped with the terminal box of cable to know among the prior art at solar cell panel's lower extreme generally, after the connector is installed to the end that will connect the cable, insert the connector and can accomplish being connected of photovoltaic board and cable in the terminal box, and the connector among the prior art and the joint position of terminal box are mostly buckle formula, it is more troublesome to break the card ear off with the fingers and thumb during the dismouting and take off the connector, and solar cell panel generally is outdoor moreover, the cable connects out because there is not waterproof function, cause the electric leakage condition easily.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a waterproof connection structure of power cable for photovoltaic power generation to solve the problem mentioned in the above background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a waterproof connection structure of power cable for photovoltaic power generation, includes the photovoltaic board, the lower extreme right side of photovoltaic board is equipped with the terminal box, the lower extreme of terminal box is equipped with first connector, the inboard plug-in connection of first connector has the second connector, the outside of second connector is equipped with protection machanism, the inboard of second connector is equipped with fixing mechanism, the inboard of first connector is equipped with the card hole, the second connector passes through fixing mechanism and blocks the hole joint and connect, the inboard in card hole is equipped with ejection mechanism.

Further, as preferred technical scheme, protection machanism includes the lag, the outside at the second connector is established to the protective sheath, the outside of second connector is equipped with the extrusion cover, the inboard of lag is equipped with the sealing ring, the upper end of lag and the lower extreme outer wall threaded connection of first connector.

Further, as a preferred technical scheme, the outer wall of the lower end of the first connecting head is provided with a thread groove, and the protecting sleeve is in threaded connection with the first connecting head through the thread groove.

Further, as a preferred technical scheme, a sealing gasket is arranged on the outer side of the first connecting joint, and the sealing gasket is movably connected with the upper end of the protecting sleeve.

Further, as a preferred technical scheme, the fixing mechanism comprises an elastic cavity, the elastic cavity is symmetrically arranged on the inner side of the second connector, the inner side of the elastic cavity is connected with a top plate in a sliding mode, a first spring is arranged between the top plate and the elastic cavity, a clamping block is fixedly connected to one side, away from the first spring, of the top plate, one end of the clamping block is connected with the clamping hole in a clamping mode, the ejection mechanism is arranged on the inner side of the clamping hole, and the ejection mechanism and the clamping block are movably connected.

Further, as the preferred technical scheme, the outside of roof is equipped with the spout, the roof passes through spout sliding connection and is in the chamber of bullet inboard.

Further, as a preferred technical scheme, the ejection mechanism comprises a moving groove, the moving groove is formed in one end, far away from the clamping block, of the clamping hole, the inner side of the moving groove is connected with a protruding block in a sliding mode, a second spring is arranged between the protruding block and the moving groove, and a protruding portion of the protruding block extends into the inner side of the clamping hole and is movably connected with the clamping block.

Further, as a preferred technical scheme, a groove wall of the moving groove is provided with a limiting groove, and the projection is connected to the inner side of the limiting groove in a sliding manner.

Further, as a preferred technical scheme, a positioning groove is formed in the wall of the lower port of the first connecting head.

To sum up, the utility model discloses mainly have following beneficial effect:

after the first connector and the second connector are installed, a protective sleeve outside the second connector is connected with the first connector in a threaded mode, the inner side of the lower end of the protective sleeve is extruded to the inclined plane of an extrusion sleeve on the second connector, a sealing ring is extruded to the inclined plane, and meanwhile a sealing gasket is arranged between the first connector and the protective sleeve, so that the upper end and the lower end of the first connector are in a sealing state, and the effect of waterproof sealing of the cable connector is achieved;

second, at second connector and first connector along the constant head tank grafting in-process, the fixture block receives the extrusion along the inclined plane in the constant head tank, then the roof that the fixture block is connected slides and extrudees first spring in playing the chamber, after the metal terminal of first connector and second connector contacts, simultaneously the second connector supports in first connector and meanwhile first spring resets and promotes the fixture block card and go into the card hole of first connector and can reach the stationary state, when needs tear down first connector and second connector, bulldoze the lug and make the lug compress the second spring in moving the groove, simultaneously the bulge of lug in the card hole with the fixture block ejecting can, thereby make the convenience of dismouting more between the first connector of cable and the second connector.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

FIG. 3 is a schematic structural view of the protection mechanism of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3 according to the present invention.

Reference numerals: 1. photovoltaic board, 2, terminal box, 3, first connector, 4, second connector, 5, protection machanism, 501, lag, 502, sealing ring, 503, extrusion cover, 6, sealed pad, 7, thread groove, 8, fixed establishment, 801, bullet chamber, 802, first spring, 803, roof, 804, fixture block, 9, card hole, 10, spout, 11, constant head tank, 12, ejection mechanism, 121, lug, 122, second spring, 123, move the groove, 13, spacing groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, the waterproof connection structure of a power cable for photovoltaic power generation according to the present embodiment includes a photovoltaic panel 1, a junction box 2 is disposed on the right side of the lower end of the photovoltaic panel 1, a first connector 3 is disposed on the lower end of the junction box 2, a second connector 4 is inserted into the first connector 3, a protection mechanism 5 is disposed on the outer side of the second connector 4, a fixing mechanism 8 is disposed on the inner side of the second connector 4, a fastening hole 9 is disposed on the inner side of the first connector 3, the second connector 4 is fastened and connected to the fastening hole 9 through the fixing mechanism 8, and an ejection mechanism 12 is disposed on the inner side of the fastening hole 9; the lower port wall of the first connector 3 is provided with the positioning groove 11, and the positioning groove 11 is arranged on the lower port wall of the first connector 3, so that when the second connector 4 and the first connector 3 are conveniently plugged, the fixture block 804 is pushed along the positioning groove 11, and the connection of the electrical connection part and the fixation between the first connector 3 and the second connector 4 are convenient.

Example 2

Referring to fig. 2-3, on the basis of embodiment 1, in order to achieve the purpose of conveniently protecting the waterproof connection between the first connector 3 and the second connector 4, in this embodiment, a protection mechanism 5 is innovatively designed, specifically, the protection mechanism 5 includes a protection cover 501, the protection cover 501 is disposed outside the second connector 4, an extrusion sleeve 503 is disposed outside the second connector 4, a sealing ring 502 is disposed inside the protection cover 501, an upper end of the protection cover 501 is in threaded connection with an outer wall of a lower end of the first connector 3, by providing the protection mechanism 5, after the first connector 3 and the second connector 4 are installed, the protection cover 501 outside the second connector 4 is in threaded connection with the first connector, so that an inner side of the lower end of the protection cover 501 is extruded on an inclined surface of the extrusion sleeve 503 on the second connector 4, and the sealing ring 502 is extruded on the inclined surface; the outer wall of the lower end of the first connecting head 3 is provided with a thread groove 7, the protecting sleeve 501 is in threaded connection with the first connecting head 3 through the thread groove 7, and the protecting sleeve 501 can be conveniently sealed and fixed by arranging the thread groove 7 on the outer wall of the lower end of the first connecting head 3; the outside of first connector 3 is equipped with sealed 6 of filling up, and sealed 6 upper end with the lag 501 of filling up is swing joint, through setting up sealed 6 of filling up on first connector 3, when lag 501 and the threaded fixation of first connector 3, sealed 6 of filling up can play sealed protection effect to the junction.

Example 3

Referring to fig. 3-4, in this embodiment, on the basis of embodiment 1, in order to achieve the purpose of facilitating the assembly and disassembly of the first connector 3 and the second connector 4, in this embodiment, a fixing mechanism 8 and an ejection mechanism 12 are innovatively designed, specifically, the fixing mechanism 8 includes an elastic cavity 801, the elastic cavity 801 is symmetrically disposed on the inner side of the second connector 4, the inner side of the elastic cavity 801 is slidably connected with a top plate 803, a first spring 802 is disposed between the top plate 803 and the elastic cavity 801, one side of the top plate 803, which is away from the first spring 802, is fixedly connected with a fixture block 804, one end of the fixture block 804 is in clamping connection with the fixture hole 9, the ejection mechanism 12 is disposed on the inner side of the fixture hole 9, the ejection mechanism 12 and the fixture block 804 are movably connected, by disposing the fixing mechanism 8, in the process of inserting the second connector 4 and the first connector 3 along the positioning groove 11, the fixture block 804 is extruded along the inclined surface in the positioning groove 11, then the top plate 803 connected with the fixture block 804 slides in the elastic cavity 801 and extrudes the first spring 802, and the first connector 804, when the metal end of the first connector 3 and the first connector 4 abuts against the first connector 3, and the fixture block 3 is reset state of the first connector 804; the first connector 3 is provided with a conductive contact pin, the second connector 4 is provided with a conductive elastic sheet, and the conductive contact pin and the conductive elastic sheet are contacted and electrified after being mutually spliced; the outer side of the top plate 803 is provided with a sliding groove 10, the top plate 803 is connected to the inner side of the spring cavity 801 in a sliding manner through the sliding groove 10, and the sliding of the top plate 803 in the spring cavity 801 can be facilitated by arranging the sliding groove 10 on the outer side of the top plate 803; the ejection mechanism 12 comprises a moving groove 123, the moving groove 123 is arranged at one end of the clamping hole 9 far away from the clamping block 804, the inner side of the moving groove 123 is connected with a convex block 121 in a sliding manner, a second spring 122 is arranged between the convex block 121 and the moving groove 123, the convex part of the convex block 121 extends into the inner side of the clamping hole 9 and is movably connected with the clamping block 804, through the arrangement of the ejection mechanism 12, when the first connector 3 and the second connector 4 need to be disassembled, the convex block 121 is pushed to enable the convex block 121 to compress the second spring 122 in the moving groove 123, and meanwhile, the convex part of the convex block 121 can eject the clamping block 804 in the clamping hole 9; the groove wall of the moving groove 123 is provided with a limiting groove 13, the lug 121 is connected to the inner side of the limiting groove 13 in a sliding mode, and the limiting groove 13 is formed in the groove wall of the moving groove 123, so that the lug 121 can conveniently slide in the moving groove 123 in a limiting mode.

The use principle and the advantages are as follows: in the using process, the second connector 4 is installed on the cable end, then the second connector 4 is inserted into the first connector 3, in the process that the second connector 4 and the first connector 3 are inserted into the positioning groove 11, the fixture block 804 is extruded along the inclined plane in the positioning groove 11, then the top plate 803 connected with the fixture block 804 slides in the elastic cavity 801 and extrudes the first spring 802, after the metal ends of the first connector 3 and the second connector 4 are connected, the second connector 4 abuts against the first connector 3, meanwhile, the first spring 802 resets and pushes the fixture block 804 to be clamped into the clamping hole 9 of the first connector 3 to achieve a fixed state, then, after the first connector 3 and the second connector 4 are installed, the protection sleeve 501 and the first connection sleeve which are arranged outside the second connector 4 are connected through threads, the inner side of the lower end of the protection sleeve 501 is enabled to extrude on the inclined plane of the extrusion sleeve 503 on the second connector 4, the sealing ring 502 is enabled to be extruded on the sealing pad 6 arranged between the first connector 3 and the protection sleeve 501, the upper end and the lower end of the protection sleeve are enabled to be in a sealing state, and the two ends of the protection sleeve are enabled to push and push the protrusion 121 of the first connector 3 and push the protrusion 121 of the protrusion 121 which is pushed out in the first connector 3 at the same time.

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 appended claims and their equivalents.

Claims

1. The utility model provides a waterproof connection structure of power cable for photovoltaic power generation which characterized in that: including photovoltaic board (1), the lower extreme right side of photovoltaic board (1) is equipped with terminal box (2), the lower extreme of terminal box (2) is equipped with first connector (3), the inboard plug-in connection of first connector (3) has second connector (4), the outside of second connector (4) is equipped with protection machanism (5), the inboard of second connector (4) is equipped with fixed establishment (8), the inboard of first connector (3) is equipped with card hole (9), second connector (4) are connected through fixed establishment (8) and card hole (9) joint, the inboard of card hole (9) is equipped with ejection mechanism (12).

2. The waterproof connection structure of the power cable for photovoltaic power generation according to claim 1, characterized in that: protection machanism (5) are including lag (501), the outside at second connector (4) is established in lag (501), the outside of second connector (4) is equipped with extrusion cover (503), the inboard of lag (501) is equipped with sealing ring (502), the lower extreme outer wall threaded connection of the upper end of lag (501) and first connector (3).

3. The waterproof connection structure of a power cable for photovoltaic power generation according to claim 2, characterized in that: the outer wall of the lower end of the first connecting head (3) is provided with a thread groove (7), and the protecting sleeve (501) is in threaded connection with the first connecting head (3) through the thread groove (7).

4. The waterproof connection structure of a power cable for photovoltaic power generation according to claim 2, characterized in that: the outer side of the first connecting head (3) is provided with a sealing gasket (6), and the upper end of the sealing gasket (6) is movably connected with the upper end of the protecting sleeve (501).

5. The waterproof connection structure of a power cable for photovoltaic power generation according to claim 1, characterized in that: fixed establishment (8) are including playing chamber (801), play inboard at second connector (4) is established to chamber (801) symmetry, the inboard sliding connection in chamber (801) has roof (803), be equipped with first spring (802) between roof (803) and play chamber (801), one side fixedly connected with fixture block (804) of first spring (802) are kept away from in roof (803), the one end and the card hole (9) of fixture block (804) are connected for the joint, ejection mechanism (12) are established at card hole (9) inboardly, ejection mechanism (12) and fixture block (804) are swing joint.

6. The waterproof connection structure of a power cable for photovoltaic power generation according to claim 5, characterized in that: the outer side of the top plate (803) is provided with a sliding groove (10), and the top plate (803) is connected to the inner side of the bullet cavity (801) in a sliding mode through the sliding groove (10).

7. The waterproof connection structure of the power cable for photovoltaic power generation according to claim 5, characterized in that: the ejection mechanism (12) comprises a moving groove (123), the moving groove (123) is formed in one end, far away from the clamping block (804), of the clamping hole (9), the inner side of the moving groove (123) is connected with a convex block (121) in a sliding mode, a second spring (122) is arranged between the convex block (121) and the moving groove (123), and a protruding portion of the convex block (121) extends into the inner side of the clamping hole (9) and is movably connected with the clamping block (804).

8. The waterproof connecting structure of the power cable for photovoltaic power generation according to claim 7, characterized in that: the groove wall of the moving groove (123) is provided with a limiting groove (13), and the lug (121) is connected to the inner side of the limiting groove (13) in a sliding manner.

9. The waterproof connection structure of the power cable for photovoltaic power generation according to claim 1, characterized in that: and a positioning groove (11) is formed in the wall of the lower port of the first connecting head (3).