Sealing structure of photovoltaic crystalline silicon junction box

Abstract

The utility model discloses a sealing structure of a photovoltaic crystalline silicon junction box, which belongs to the technical field of photovoltaic crystalline silicon junction boxes, and comprises a box body and a rotating cover, the front side of the box body is provided with two joints, the front side of each joint is provided with a plug, and the surface of each plug is provided with a protection mechanism. A sealing mechanism is arranged between the opposite sides of the box body and the rotating cover, and the problems that according to an existing lock catch adopting a two-buckle mode, stress on the box cover is concentrated at two points, stress on other points is not uniform, the box body is prone to deformation and snagging under high temperature or external force, the sealing performance is affected, and the box body is exposed in the outdoor environment for a long time, so that the service life of the box body is prolonged are solved. The problems that the sealing performance is reduced, water vapor, dust and the like easily enter the junction box and the normal work and the service life of internal electrical elements are influenced due to the fact that the sealing ring is gradually aged and hardened and loses elasticity under the influence of factors such as ultraviolet rays, temperature change and humidity, and the aged sealing ring cannot be tightly attached to the box body and the box cover are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic crystalline silicon terminal box technical field, especially relates to photovoltaic crystalline silicon terminal box's sealing structure. BACKGROUND

[0002] The photovoltaic crystalline silicon terminal box is generally composed of a box body, a box cover, a terminal, a diode, a connecting wire and the like, the box body and the box cover are usually made of plastic material such as polycarbonate or polystyrene, the box body provides a containing space for internal elements, and the shape design needs to consider the convenience of installation and heat dissipation.

[0003] The terminal box has a relatively simple structure, and the traditional terminal box mostly adopts the buckle mode for the convenience and material saving, but the buckle mode on the traditional terminal box is relatively simple and can easily fall off after long-term use, leading to the separation of the box cover and the box body, and the photovoltaic assembly is also fixed by the clamping mode, which can also fall off after a long time;

[0004] The existing patent (publication number: CN216216749U) discloses a solar photovoltaic terminal box with a reinforcing structure, relating to the technical field of electrical accessories, which comprises a box bottom and a box cover, the box bottom is fixedly connected with buckles on both sides, the buckles are provided in multiple numbers, a first threaded hole is formed in one end of the buckle, and a fixing screw is movably connected to the inner wall of the first threaded hole, the utility model is provided with a fixing part, the photovoltaic assembly and the terminal are connected when the device is used, the horizontal rod is movably connected to the fixed block, the horizontal rod is fixedly connected to one end of the clamping cover, so the clamping cover can rotate until it covers the photovoltaic assembly, then the adapter block and the connecting block are butted, and the photovoltaic assembly is fixed by tightening the fastening screw, in this way, the photovoltaic assembly can be fixed more stably and efficiently, and no damage is caused to the photovoltaic assembly, so the service life of the photovoltaic assembly is increased, and the maintenance rate is reduced.

[0005] In view of the above problems, the existing patent provides a solution, but the above-mentioned scheme has certain limitations in use, the lock buckle adopts a two-buckle mode, the box cover is stressed at two points, the stress at other points is uneven, the box body is easily deformed and gapped under high temperature or external force, the sealing performance is affected, and the sealing ring is gradually hardened and loses elasticity due to the influence of factors such as ultraviolet rays, temperature changes and humidity when exposed to the outdoor environment for a long time, the aged sealing ring cannot tightly fit the box body and the box cover, the sealing performance is reduced, and water vapor, dust and the like can easily enter the terminal box, affecting the normal work and service life of the internal electrical elements.

[0006] Therefore, the sealing structure of the photovoltaic crystalline silicon terminal box is proposed. UTILITY MODEL CONTENTS

[0007] The utility model discloses a photovoltaic crystalline silicon junction box's sealing structure can solve the problem that the existing lock catch of two buckle mode is adopted, and the stress of box cover is concentrated on two points, and the stress of other points is uneven, when high temperature or external force is received, the box body is easily deformed and is toothed, the sealing performance is influenced, and the sealing ring is influenced by ultraviolet rays, temperature change, humidity and other factors when being exposed to the outdoor environment for a long time, gradually ageing and hardening, losing elasticity, the sealing ring after ageing can not closely fit the box body and the box cover, leading to the sealing performance decline, and water vapor, dust and the like easily enter the junction box inside, influencing the normal work and service life of internal electrical components.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: photovoltaic crystalline silicon junction box's sealing structure, including box body and rotating cover, the front side of box body is provided with two joints, the front side of joint is provided with plug, the surface of plug is provided with protection mechanism, the opposite side between box body and rotating cover is provided with sealing mechanism, the front side of rotating cover is provided with two buckles;

[0009] The sealing mechanism includes a sealing plate, a sealing block, a sealing groove, a sealing frame and a partition plate, the bottom of the sealing plate is fixedly connected with the top of the sealing block, the bottom of the sealing block extends to the inside of the sealing groove and is in close contact with the inside of the sealing groove, the sealing groove is arranged on the top of the sealing frame, the bottom of the sealing frame is in contact with the top of the partition plate, and the surface of the partition plate is fixedly connected with the inside of the box body.

[0010] Preferably, the surface of the joint is provided with a protective shell, the surface of the plug is fixedly connected with sealing cotton, and the surface of the sealing cotton is in close contact with the inner wall of the protective shell.

[0011] Preferably, the surface of the sealing cotton is rotatably connected with a fixing sleeve, and the inside of the fixing sleeve is threadedly connected with the surface of the protective shell.

[0012] Preferably, the surface of the sealing cotton is fixedly connected with a limiting ring and a sealing ring, and the surface of the sealing ring is in close contact with the inside of the protective shell.

[0013] Preferably, the inside of the sealing groove is fixedly connected with a magnetic attraction block, and the top of the magnetic attraction block is magnetically attracted to the bottom of the sealing block.

[0014] Preferably, the bottom of the partition plate is provided with four screw rods, the top of the screw rod penetrates through the partition plate and extends to the inside of the sealing frame, and the surface of the screw rod is threadedly connected with the inside of the sealing frame.

[0015] Preferably, the inside of the rotating cover is fixedly connected with a waterproof plate, and the opposite side between the waterproof plate and the sealing plate is fixedly connected with four springs.

[0016] Preferably, the rear side of the box body is provided with two hinges, the connection between the box body and the rotating cover is connected through the hinges, and the bottom of the box body is fixedly connected with four supporting seats.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、The sealing block is moved to the inside of the sealing groove and tightly contacts with the inside of the sealing groove, the top of the magnetic block is magnetically attracted to the bottom of the sealing block, the sealing block is sealed to the sealing plate through the sealing frame, and thus the inside of the box body is conveniently sealed and blocked.

[0019] 2、The plug drives the sealing cotton to move to the inside of the connector, the surface of the sealing cotton is tightly contacted with the inner wall of the protective shell, the fixed sleeve is moved to the surface of the protective shell for fixation under the limiting of the limiting ring, and thus the sealing ring assists in sealing the inside of the protective shell. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the sealing structure of the photovoltaic crystalline silicon junction box.

[0021] Figure 2 It is a three-dimensional connection schematic diagram of the protection mechanism in the utility model.

[0022] Figure 3 It is a three-dimensional connection schematic diagram of the sealing mechanism in the utility model.

[0023] Figure 4 It is a three-dimensional connection schematic diagram of the screw rod and the sealing frame in the utility model.

[0024] Figure 5 It is a three-dimensional connection schematic diagram of the sealing block and the waterproof plate in the utility model.

[0025] In the drawing, 1 is a box body, 2 is a rotating cover, 3 is a plug, 4 is a supporting seat, 5 is a protection mechanism, 501 is a protective shell, 502 is a limiting ring, 503 is a sealing ring, 504 is a fixed sleeve, 505 is sealing cotton, 6 is a connector, 7 is a sealing mechanism, 701 is a sealing plate, 702 is a sealing block, 703 is a sealing groove, 704 is a sealing frame, 705 is a partition plate, 8 is a hinge, 9 is a magnetic block, 10 is a screw rod, 11 is a waterproof plate, 12 is a spring, and 13 is a buckle. DETAILED DESCRIPTION

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The present invention provides the following technical solution:

[0028] The sealing structure of the photovoltaic crystalline silicon junction box includes a box body 1 and a rotating cover 2. Two connectors 6 are provided on the front side of the box body 1. A plug 3 is provided on the front side of the connectors 6. A protective mechanism 5 is provided on the surface of the plug 3. A sealing mechanism 7 is provided between the opposite sides of the box body 1 and the rotating cover 2. Two buckles 13 are provided on the front side of the rotating cover 2.

[0029] The sealing mechanism 7 includes a sealing plate 701, a sealing block 702, a sealing groove 703, a sealing frame 704, and a partition 705. The bottom of the sealing plate 701 is fixedly connected to the top of the sealing block 702. The bottom of the sealing block 702 extends into the interior of the sealing groove 703 and is in close contact with the interior of the sealing groove 703. The sealing groove 703 is opened at the top of the sealing frame 704. The bottom of the sealing frame 704 contacts the top of the partition 705. The surface of the partition 705 is fixedly connected to the interior of the box body 1.

[0030] In this embodiment: by fixing the bottom of the sealing plate 701 to the top of the sealing block 702, the rotating cover 2 can easily move the sealing block 702 through the sealing plate 701, thereby allowing the bottom of the sealing block 702 to extend into the interior of the sealing groove 703 and make close contact with the interior of the sealing groove 703, so that the surface of the partition 705 is fixedly connected to the interior of the box body 1, thereby allowing the partition 705 to limit and support the sealing frame 704, so that the sealing block 702 can seal the sealing plate 701 through the sealing frame 704, thereby facilitating the sealing and blocking of the interior of the box body 1, and thus facilitating the isolation and protection of the interior of the box body 1 by the partition 705.

[0031] Specifically, such as Figure 1 , Figure 2 As shown, a protective shell 501 is provided on the surface of the connector 6, and a sealing cotton 505 is fixedly connected to the surface of the plug 3. The surface of the sealing cotton 505 is in close contact with the inner wall of the protective shell 501.

[0032] Specifically, such as Figure 2 As shown, a fixed sleeve 504 is rotatably connected to the surface of the sealing cotton 505, and the interior of the fixed sleeve 504 is threadedly connected to the surface of the protective shell 501.

[0033] Specifically, as shown in Figure 2 The surface of the sealing cotton 505 is fixedly connected with the limiting ring 502 and the sealing ring 503, and the surface of the sealing ring 503 is in close contact with the inside of the protective shell 501.

[0034] In this embodiment: by making the surface of the sealing cotton 505 in close contact with the inner wall of the protective shell 501, the sealing cotton 505 can be conveniently sealed to the inside of the protective shell 501 through the sealing ring 503, and the effect of sealing the inside of the protective shell 501 is achieved.

[0035] Specifically, as shown in Figure 3 , Figure 4 The inside of the sealing groove 703 is fixedly connected with the magnetic block 9, and the top of the magnetic block 9 is magnetically attracted to the bottom of the sealing block 702.

[0036] Specifically, as shown in Figure 4 The bottom of the partition plate 705 is provided with four screw rods 10, the top of the screw rod 10 penetrates through the partition plate 705 and extends into the inside of the sealing frame 704, and the surface of the screw rod 10 is screw-connected with the inside of the sealing frame 704.

[0037] In this embodiment: by screwing the surface of the screw rod 10 with the inside of the sealing frame 704, the screw rod 10 can fix the sealing frame 704, and the effect of fixing the sealing frame 704 is achieved.

[0038] Specifically, as shown in Figure 3 , Figure 5 The inside of the rotating cover 2 is fixedly connected with the water baffle 11, and the water baffle 11 is fixedly connected with four springs 12 opposite one side of the sealing plate 701.

[0039] Specifically, as shown in Figure 1 , Figure 3 The back side of the box body 1 is provided with two hinges 8, and the connection between the box body 1 and the rotating cover 2 is rotatably connected through the hinges 8, and the bottom of the box body 1 is fixedly connected with four supporting seats 4.

[0040] In this embodiment: by fixing the water baffle 11 with four springs 12 opposite one side of the sealing plate 701, the sealing plate 701 can be conveniently adjusted through the springs 12, and the effect of conveniently adjusting the sealing plate 701 is achieved.

[0041] Working principle: when the inside of the box body 1 is sealed, the plug 3 drives the sealing cotton 505 to move to the inside of the joint 6, so that the surface of the sealing cotton 505 is in close contact with the inner wall of the protective shell 501, that is, the fixed sleeve 504 is conveniently moved to the surface of the protective shell 501 under the limiting of the limiting ring 502 for fixation, so that the sealing ring 503 conveniently assists in sealing the inside of the protective shell 501, then the rotating cover 2 is rotated to the top of the box body 1 through the hinge 8, so that the waterproof plate 11 drives the sealing plate 701 to move through the spring 12, that is, the sealing block 702 is driven to move to the inside of the sealing groove 703 and is in close contact with the inside of the sealing groove 703, the top of the magnetic attraction block 9 is magnetically attracted to the bottom of the sealing block 702, that is, the sealing block 702 is conveniently sealed to the sealing plate 701 through the sealing frame 704, so that the inside of the box body 1 is conveniently sealed and blocked, that is, the baffle 705 conveniently isolates and protects the inside of the box body 1, then the buckle 13 is used for auxiliary fixation and sealing, solves the problem that the existing lock buckle adopts a two-buckle mode, the box cover is stressed on two points, the stress of other points is uneven, when high temperature or external force is applied, the box body 1 is easily deformed and gapped, the sealing performance is affected, and the sealing ring 503 is affected by ultraviolet rays, temperature changes, humidity and other factors for a long time exposed to outdoor environment, gradually ages and hardens, loses elasticity, the aged sealing ring 503 cannot be closely attached to the box body 1 and the box cover, the sealing performance is reduced, water vapor, dust and the like easily enter the junction box, and the normal work and service life of the internal electrical elements are affected.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. Sealing structure for a photovoltaic crystalline silicon junction box comprising a box body (1) and a rotating lid (2), characterized in that: The front side of the box body (1) is provided with two connectors (6), the front side of the connector (6) is provided with a plug (3), the surface of the plug (3) is provided with a protection mechanism (5), the opposite side of the box body (1) and the rotating cover (2) is provided with a sealing mechanism (7), the front side of the rotating cover (2) is provided with two buckles (13); The sealing mechanism (7) comprises a sealing plate (701), a sealing block (702), a sealing groove (703), a sealing frame (704) and a partition plate (705), the bottom of the sealing plate (701) is fixedly connected with the top of the sealing block (702), the bottom of the sealing block (702) extends to the inside of the sealing groove (703) and is in close contact with the inside of the sealing groove (703), the sealing groove (703) is arranged on the top of the sealing frame (704), the bottom of the sealing frame (704) is in contact with the top of the partition plate (705), and the surface of the partition plate (705) is fixedly connected with the inside of the box body (1).

2. A sealing structure for a photovoltaic crystalline silicon junction box according to claim 1, characterized in that: The surface of the connector (6) is provided with a protective shell (501), the surface of the plug (3) is fixedly connected with sealing cotton (505), and the surface of the sealing cotton (505) is in close contact with the inner wall of the protective shell (501).

3. A sealing structure for a photovoltaic crystalline silicon junction box according to claim 2, characterized in that: The surface of the sealing cotton (505) is rotatably connected with a fixing sleeve (504), and the inside of the fixing sleeve (504) is threadedly connected with the surface of the protective shell (501).

4. The encapsulation of a photovoltaic crystalline silicon junction box according to claim 2, characterized in that: The surface of the sealing cotton (505) is fixedly connected with a limiting ring (502) and a sealing ring (503), and the surface of the sealing ring (503) is in close contact with the inside of the protective shell (501).

5. The encapsulation of a photovoltaic crystalline silicon junction box according to claim 1, characterized in that: The inside of the sealing groove (703) is fixedly connected with a magnetic block (9), and the top of the magnetic block (9) is magnetically attracted to the bottom of the sealing block (702).

6. The encapsulation of a photovoltaic crystalline silicon junction box according to claim 1, characterized in that: The bottom of the partition plate (705) is provided with four screw rods (10), the top of the screw rod (10) penetrates through the partition plate (705) and extends to the inside of the sealing frame (704), and the surface of the screw rod (10) is threadedly connected with the inside of the sealing frame (704).

7. The encapsulation of a photovoltaic crystalline silicon junction box according to claim 1, characterized in that: The inside of the rotating cover (2) is fixedly connected with a waterproof plate (11), and four springs (12) are fixedly connected between the waterproof plate (11) and the opposite side of the sealing plate (701).

8. The encapsulation of a photovoltaic crystalline silicon junction box according to claim 1, characterized in that: The rear side of the box body (1) is provided with two hinges (8), the connecting part of the box body (1) and the rotating cover (2) is rotatably connected through the hinge (8), and the bottom of the box body (1) is fixedly connected with four supporting seats (4).

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