CN216819792U

CN216819792U - Heat-dissipating photovoltaic junction box

Info

Publication number: CN216819792U
Application number: CN202220097730.8U
Authority: CN
Inventors: 余如龙
Original assignee: Wuxi Inspection And Certification Institute
Current assignee: Wuxi Inspection And Certification Institute
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-24
Anticipated expiration: 2032-01-14

Abstract

The utility model provides a heat-dissipating photovoltaic junction box; including terminal box body and snap ring, it has the air inlet duct that is the equidistance and distributes to open on one side outer wall of terminal box body, and one side of terminal box body top outer wall is connected with the top cap through the hinge rotation, it has the radiating groove to open on the top outer wall of top cap, and the inside integrated into one piece of radiating groove has the mount, there is the heat dissipation fan through the bolt mounting on the top outer wall of mount, the inside integrated into one piece of terminal box body has the stationary blade that is the equidistance and distributes, and electric connection has the diode between two relative stationary blades, the welding has the radiating ring that is the equidistance and distributes on the bottom outer wall of terminal box body. The radiating ring and the radiating fin are sleeved outside the diode, so that heat emitted by the diode can be effectively absorbed, and then the radiating fan radiates the heat of the radiating ring and the radiating fin out of the box body, so that the device is effectively cooled, and the device is prevented from being damaged.

Description

Heat-dissipating photovoltaic junction box

Technical Field

The utility model belongs to the technical field of photovoltaic modules, and particularly relates to a heat-radiating photovoltaic junction box.

Background

The photovoltaic junction box is a connector between a solar cell array formed by the solar cell modules and the solar cell charging control device, and is mainly used for connecting and protecting the solar cell modules, so that electric power generated by the solar cells is connected with an external circuit, and electric energy generated by the solar cell modules is led out through cables. The photovoltaic junction box and the wiring system form a sealed space, the photovoltaic junction box provides protection against environmental influence for the wires and the connection of the wires, provides protection of contactability for electrified parts, and reduces tension for the wiring system connected with the electrified parts.

The diode of photovoltaic terminal box inside at the in-process of work can send a large amount of heats, can reach 160 and give rise to 200 degrees centigrade even, if can't in time discharge the heat this moment, can make the device inside burnt out, and current photovoltaic terminal box only opens the radiating groove on the box body usually and is used for the heat dissipation, can't reach the requirement far away, consequently, but a heat dissipation type photovoltaic terminal box of urgent need design solves above-mentioned problem.

Disclosure of Invention

The utility model aims to solve the defect that the requirement is far not met because only a radiating groove is formed in a box body for radiating heat in the prior art, and provides a radiating type photovoltaic junction box.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a but heat dissipation type photovoltaic terminal box, includes terminal box body and snap ring, it has the air inlet duct that is the equidistance and distributes to open on one side outer wall of terminal box body, and one side of terminal box body top outer wall is connected with the top cap through the hinge rotation, it has the radiating groove to open on the top outer wall of top cap, and the inside integrated into one piece of radiating groove has the mount, there is the heat dissipation fan through the screw mounting on the top outer wall of mount, the inside integrated into one piece of terminal box body has the stationary blade that is the equidistance and distributes, and electric connection has the diode between two relative stationary blades, the welding has the radiating ring that is the equidistance and distributes on the bottom outer wall of terminal box body, and the welding has the fin that is the equidistance and distributes on the top outer wall of radiating ring, the radiating ring cup joints the outside at the diode.

Furthermore, a separation net is installed on the outer wall of the top of the fixing frame through screws and is located above the heat dissipation fan.

Furthermore, threaded connection has two binding post on one side outer wall of terminal box body, and binding post's one end electric connection has the extension line, the one end electric connection that binding post was kept away from to the extension line has public female head.

Furthermore, a clamping groove is formed in the outer wall of the bottom of the junction box body, a clamping block is integrally formed on the outer wall of the bottom of the top cover, and the clamping block is clamped inside the clamping groove.

Furthermore, a positioning groove is formed in one side of the outer wall of the top cover top, and label paper is bonded inside the positioning groove.

Furthermore, an inserted bar is integrally formed on the outer wall of the top of the clamping ring, and clamping pieces are integrally formed on two sides of the inserted bar.

Furthermore, the outer walls of the two sides of the junction box body are integrally formed with connecting lugs, the outer wall of the top of each connecting lug is provided with a jack, and the inserting rod is inserted into the jacks.

The utility model has the beneficial effects that:

1. according to the utility model, the heat dissipation ring, the heat dissipation sheet and the heat dissipation fan are arranged, the heat dissipation ring and the heat dissipation sheet are sleeved outside the diode, so that heat emitted by the diode can be effectively absorbed, and then the heat of the heat dissipation ring and the heat dissipation sheet is dissipated outside the box body by the heat dissipation fan, so that the device is effectively cooled, and the device is prevented from being damaged.

2. According to the photovoltaic junction box, the existing photovoltaic junction box is usually directly adhered to the back of the photovoltaic module through the arranged clamping ring, the device needs to be detached when the device is maintained, the surface of the photovoltaic module is easily damaged at the moment, and the device is fixed on the mounting frame of the photovoltaic module through the clamping ring, so that the photovoltaic junction box is convenient to detach and can prevent temperature from being transmitted to the photovoltaic module.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a junction box body according to the present invention;

FIG. 3 is a schematic view of the top cover structure of the present invention;

fig. 4 is a schematic view of a snap ring structure of the present invention.

In the figure: 1 terminal box body, 2 top caps, 3 binding post, 4 extension lines, 5 public female head, 6 air inlet grooves, 7 snap rings, 8 constant head tanks, 9 label paper, 10 heat dissipation fan, 11 separate the net, 12 draw-in grooves, 13 engaging lug, 14 jacks, 15 stationary blade, 16 diodes, 17 cooling ring, 18 fin, 19 radiating groove, 20 mount, 21 fixture block, 22 inserted bar, 23 cards.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the utility model is a heat-dissipating photovoltaic junction box, including a junction box body 1 and a snap ring 7, an air inlet groove 6 is formed on an outer wall of one side of the junction box body 1, the air inlet groove 6 is an inlet of external air, one side of an outer wall of a top portion of the junction box body 1 is rotatably connected with a top cover 2 through a hinge, a heat dissipating groove 19 is formed on an outer wall of a top portion of the top cover 2, a fixing frame 20 is integrally formed inside the heat dissipating groove 19, a heat dissipating fan 10 is installed on an outer wall of a top portion of the fixing frame 20 through a screw, the heat dissipating fan 10 is used for sending out air inside the junction box body 1, fixing pieces 15 are integrally formed inside the junction box body 1, the fixing pieces 15 are equidistantly distributed, diodes 16 are electrically connected between the two opposite fixing pieces 15, and heat dissipating rings 17 are welded on an outer wall of a bottom portion of the junction box body 1, and the top outer wall of the heat dissipation ring 17 is welded with the radiating fins 18 which are distributed equidistantly, the heat dissipation ring 17 and the radiating fins 18 are used for absorbing the heat emitted by the diode 16, and the heat dissipation ring 17 is sleeved outside the diode 16.

The top outer wall of the fixing frame 20 is provided with a separation net 11 through screws, the separation net 11 is used for preventing foreign matters from contacting the heat dissipation fan, and the separation net 11 is positioned above the heat dissipation fan 10.

Threaded connection has two binding post 3 on one side outer wall of terminal box body 1, and binding post 3's one end electric connection has extension line 4, and binding post 3 was kept away from to extension line 4's one end electric connection has public female head 5.

Open on the bottom outer wall of terminal box body 1 has draw-in groove 12, and integrated into one piece has fixture block 21 on the bottom outer wall of top cap 2, and fixture block 21 joint is in the inside of draw-in groove 12, and fixture block 21 and draw-in groove 12 are used for fixed top cap 2 and terminal box body 1.

One side of the outer wall of the top cover 2 is provided with a positioning groove 8, label paper 9 is adhered inside the positioning groove 6, and the label paper 9 is used for recording data of the device.

An inserting rod 22 is integrally formed on the outer wall of the top of the clamping ring 7, clamping pieces 23 are integrally formed on two sides of the inserting rod 22, and the clamping pieces 23 are used for fixing the clamping ring 7 and the junction box body 1.

The connecting lugs 13 are integrally formed on the outer walls of the two sides of the junction box body 1, the insertion holes 14 are formed in the outer wall of the top of each connecting lug 13, the insertion rods 22 are inserted into the insertion holes 14, and the insertion rods 22 and the insertion holes 14 are used for connecting the clamping rings 7 and the junction box body 1.

The working principle of the utility model is as follows: when the photovoltaic module connecting structure is used, an operator firstly presses the connecting box body 1 close to the mounting frame of the photovoltaic module, then the clamping ring 7 is sleeved outside the mounting frame of the photovoltaic module, the inserting rod 22 of the clamping ring 7 is inserted into the inserting hole 14 of the connecting lug 13, the clamping piece 23 is clamped at the top of the connecting lug 13, the connecting box body 1 and the clamping ring 7 are fixed outside the mounting frame of the photovoltaic module, and then the photovoltaic module is connected with the connecting box body 1 through the male and female head 5; when the junction box is in operation, heat emitted by the diode 16 is absorbed by the heat dissipation ring 17 and the heat dissipation fins 18, and meanwhile, the heat dissipation fan 10 takes away hot air in the junction box body 1 and heat on the heat dissipation ring 17 and the heat dissipation fins 18, so that the temperatures of the heat dissipation ring 17 and the heat dissipation fins 18 are reduced, and the temperature in the junction box body 1 is kept in a proper range.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The heat-radiating photovoltaic junction box comprises a junction box body (1) and a clamping ring (7), and is characterized in that air inlet grooves (6) distributed equidistantly are formed in the outer wall of one side of the junction box body (1), a top cover (2) is rotatably connected to one side of the outer wall of the top of the junction box body (1) through a hinge, heat radiating grooves (19) are formed in the outer wall of the top cover (2), a fixing frame (20) is integrally formed in the heat radiating grooves (19), heat radiating fans (10) are mounted on the outer wall of the top of the fixing frame (20) through screws, fixing pieces (15) distributed equidistantly are integrally formed in the inside of the junction box body (1), diodes (16) are electrically connected between the two opposite fixing pieces (15), and heat radiating rings (17) distributed equidistantly are welded on the outer wall of the bottom of the junction box body (1), and the top outer wall of the heat dissipation ring (17) is welded with heat dissipation fins (18) which are distributed equidistantly, and the heat dissipation ring (17) is sleeved outside the diode (16).

2. The heat-dissipating photovoltaic junction box according to claim 1, wherein a spacer (11) is mounted on the top outer wall of the fixing frame (20) by screws, and the spacer (11) is located above the heat-dissipating fan (10).

3. The heat-dissipating photovoltaic junction box according to claim 1, wherein two connection terminals (3) are screwed on the outer wall of one side of the junction box body (1), one end of each connection terminal (3) is electrically connected with an extension line (4), and one end of each extension line (4) far away from the corresponding connection terminal (3) is electrically connected with a male head and a female head (5).

4. The heat-dissipating photovoltaic junction box according to claim 2, wherein a clamping groove (12) is formed in the outer wall of the bottom of the junction box body (1), a clamping block (21) is integrally formed in the outer wall of the bottom of the top cover (2), and the clamping block (21) is clamped in the clamping groove (12).

5. The heat-dissipating photovoltaic junction box according to claim 3, wherein a positioning groove (8) is formed on one side of the outer wall of the top cover (2), and a label paper (9) is adhered to the inside of the positioning groove (8).

6. The heat-dissipating photovoltaic junction box according to claim 1, wherein the top outer wall of the snap ring (7) is integrally formed with an insert rod (22), and the two sides of the insert rod (22) are integrally formed with clips (23).

7. The heat-dissipating photovoltaic junction box according to claim 6, wherein the junction box body (1) is integrally formed with connecting lugs (13) on the outer walls of the two sides, and the top outer wall of each connecting lug (13) is provided with a jack (14), and the inserting rod (22) is inserted into the jack (14).