Photovoltaic junction box with protective structure

Abstract

This utility model relates to a photovoltaic junction box with a protective structure, including a box body and an external wiring device. Components are housed inside the box body. One end of the external wiring device has an internal connector that plugs into the box body and is electrically connected to the components. A protective assembly is provided on the outer wall of the box body. The protective assembly includes a protective box, a knob, and a slot. The protective box is fixedly mounted on the outer wall of the box body. The connector penetrates through the interior of the protective box. The knob is rotatably connected to one side of the outer wall of the protective box via a bearing, and one end of the knob has a locking block located inside the protective box. The slot is located on the outer wall of the connector. This utility model can fix and protect the connector of the external wiring device, preventing the connector from separating from the components inside the photovoltaic junction box when the wiring is accidentally pulled, thus preventing damage to the photovoltaic junction box and making it more durable.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic junction box technology, and in particular to a photovoltaic junction box with a protective structure. Background Technology

[0002] The connecting device between the solar cell array composed of solar cell modules and the solar charging control device has the main function of connecting and protecting the solar photovoltaic modules, connecting the power generated by the solar cells to the external line, and conducting the current generated by the photovoltaic modules.

[0003] Existing photovoltaic junction boxes have the following drawbacks in practical use:

[0004] Because photovoltaic junction boxes are connected to external connection lines, existing photovoltaic junction boxes typically do not have the function of protecting the connectors of these external connection lines. When the external connection lines are accidentally pulled, the connectors of the external connection lines can easily separate from the components inside the photovoltaic junction box, causing damage to the photovoltaic junction box. Utility Model Content

[0005] In view of the technical problem that in the prior art, photovoltaic junction boxes are connected to external connecting lines, and the existing photovoltaic junction boxes usually do not have the function of protecting the connectors of the external connecting lines. When the external connecting lines are accidentally pulled, the connectors of the external connecting lines are easily separated from the internal components of the photovoltaic junction box, causing damage to the photovoltaic junction box. This utility model provides a photovoltaic junction box with a protective structure.

[0006] The technical solution adopted by this utility model is as follows: a photovoltaic junction box with a protective structure, including a box body and an external wiring. Components are arranged inside the box body. One end of the external wiring is provided with a connector that plugs into the inside of the box body, and the connector is electrically connected to the components. A protective component is provided on the outer wall of the box body. The protective component includes a protective box, a knob, and a slot. The protective box is fixedly arranged on the outer wall of the box body. The connector penetrates through the interior of the protective box. The knob is rotatably connected to the outer wall of one side of the protective box via a bearing, and one end of the knob is provided with a locking block located inside the protective box. The slot is opened on the outer wall of the connector, and the locking block is engaged inside the slot. An inner column is provided on the inner wall of the protective box, and a torsion spring connected to the locking block is provided on the outer wall of the inner column. The torsion spring is located between the inner column and the locking block.

[0007] Furthermore, the top of the box is covered with an inspection cover, and assembly components are provided on the outer walls of both sides of the box. The assembly components include a fixed box, an assembly block, and a movable block. The fixed box is fixedly installed on the outer wall of the box, and the assembly block is fixedly installed on the outer wall of the inspection cover.

[0008] Furthermore, the movable block is slidably connected inside the fixed box, and a fixed block is integrally connected to the outer wall of one side of the movable block, the specifications of which are compatible with the assembly block.

[0009] Furthermore, a spring connected to the movable block is provided on the inner wall of the fixed box, and a push block is slidably connected inside the fixed box.

[0010] Furthermore, a pull plate located outside the fixed box is provided on the outer wall of one side of the push block, and a spring connected to the pull plate is provided on the inner wall of the fixed box.

[0011] Furthermore, a sealing gasket is provided on the outer wall of the bottom of the inspection cover, and a sealing groove is provided on the top of the box body, with the sealing gasket and the sealing groove being compatible in size.

[0012] Furthermore, a heat-conducting plate is provided on one side of the outer wall of the box, and a heat-insulating pad is provided between the outer wall of the heat-conducting plate and the inner wall of the box. Several heat sinks located outside the box are provided on the outer wall of one side of the heat-conducting plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, through its protective components, can fix and protect the connector of the external wiring, preventing the connector from separating from the internal components of the photovoltaic junction box when the wiring is accidentally pulled, thus preventing damage to the photovoltaic junction box and making it more durable.

[0015] 2. Secondly, this utility model eliminates the need for multiple screws to assemble the box and the inspection cover by using assembly components, enabling quick assembly and disassembly of the box and the inspection cover, facilitating the maintenance of the internal components of the box and making it more convenient to use.

[0016] 3. This utility model also uses a sealing gasket, a heat-conducting plate, and a heat sink. The sealing gasket can be snapped into the sealing groove, which can improve the sealing between the box and the inspection cover, and prevent water or dust from entering the box and damaging the components. The heat generated by the components during operation can be conducted to the heat sink through the heat-conducting plate and dissipated, thus realizing the heat dissipation function of the components. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the entire utility model;

[0018] Figure 2 This is a perspective view of the inspection cover of this utility model;

[0019] Figure 3 This is a perspective view of the protective component of this utility model;

[0020] Figure 4This is a perspective view of the assembly components of this utility model.

[0021] The following are labeled in the diagram: 1. Box body; 2. Components; 3. External wiring; 4. Protective assembly; 41. Protective box; 42. Rotary knob; 43. Locking block; 44. Inner column; 45. Torsion spring; 46. Slot; 5. Inspection cover; 6. Assembly assembly; 61. Fixing box; 62. Assembly block; 63. Moving block; 64. Fixing block; 65. Spring 1; 66. Push block; 67. Pull plate; 68. Spring 2; 7. Sealing gasket; 8. Sealing groove; 9. Heat-conducting plate; 10. Heat insulation pad; 11. Heat sink; 12. Connector. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0025] To address the problems existing in the background technology, this application proposes the following technical solution: a photovoltaic junction box with a protective structure.

[0026] The specific technical solution includes a housing 1 and an external wiring 3. The housing 1 contains a component 2. One end of the external wiring 3 has a connector 12 that plugs into the interior of the housing 1, and the connector 12 is electrically connected to the component 2. A protective assembly 4 is provided on the outer wall of the housing 1. The protective assembly 4 includes a protective box 41, a knob 42, and a slot 46. The protective box 41 is fixedly mounted on the outer wall of the housing 1. The connector 12 penetrates the interior of the protective box 41. The knob 42 is rotatably connected to one side of the outer wall of the protective box 41 via a bearing. The upper part of the rotating knob 42 is provided with a locking block 43 located inside the protective box 41. The locking groove 46 is opened on the outer wall of the connector 12, and the locking block 43 is locked inside the locking groove 46. The inner wall of the protective box 41 is provided with an inner post 44, and the outer wall of the inner post 44 is provided with a torsion spring 45 connected to the locking block 43. The torsion spring 45 is located between the inner post 44 and the locking block 43, which can protect the connector 12 of the external wiring 3 and prevent the connector 12 from separating from the component 2 when the external wiring 3 is accidentally pulled.

[0027] In specific implementations, such as Figure 1 and Figure 4 As shown, the top of the box 1 is covered with an inspection cover 5, and assembly components 6 are provided on the outer walls of both sides of the box 1. The assembly components 6 include a fixed box 61, an assembly block 62 and a moving block 63. The fixed box 61 is fixedly installed on the outer wall of the box 1, and the assembly block 62 is fixedly installed on the outer wall of the inspection cover 5. The assembly components 6 are used to assemble and fix the box 1 and the inspection cover 5.

[0028] Furthermore, the movable block 63 is slidably connected inside the fixed box 61, and a fixed block 64 is integrally connected to the outer wall of one side of the movable block 63. The fixed block 64 is compatible with the specifications of the assembly block 62, and the fixed block 64 can be inserted into the assembly block 62 to realize the assembly of the box 1 and the inspection cover 5.

[0029] Furthermore, a spring 65 connected to the movable block 63 is provided on the inner wall of the fixed box 61. A push block 66 is slidably connected inside the fixed box 61. When the movable block 63 is not squeezed by the push block 66, the elastic force of the spring 65 can push the movable block 63 to move.

[0030] Furthermore, a pull plate 67 is provided on the outer wall of one side of the push block 66, located outside the fixed box 61. A second spring 68 connected to the pull plate 67 is provided on the inner wall of the fixed box 61. The elastic force of the second spring 68 is greater than that of the first spring 65. When the pull plate 67 is released, the elastic force of the second spring 68 can push the push block 66 to move and squeeze the moving block 63, causing the moving block 63 to move.

[0031] In specific implementations, such as Figure 1 and Figure 2As shown, a sealing gasket 7 is provided on the outer wall of the bottom of the inspection cover 5, and a sealing groove 8 is provided on the top of the box body 1. The specifications of the sealing gasket 7 and the sealing groove 8 are compatible, and the sealing gasket 7 can be snapped into the sealing groove 8, thereby ensuring the sealing between the box body 1 and the inspection cover 5.

[0032] In specific implementations, such as Figure 1 As shown, a heat-conducting plate 9 is provided on the outer wall of one side of the box body 1, and a heat insulation pad 10 is provided between the outer wall of the heat-conducting plate 9 and the inner wall of the box body 1. Several heat sinks 11 located outside the box body 1 are provided on the outer wall of one side of the heat-conducting plate 9. The heat-conducting plate 9 is a metal plate with thermal conductivity, which can absorb heat and conduct it to the heat sinks 11. The heat sinks 11 dissipate the heat to the outside of the box body 1, thereby realizing heat dissipation for the component 2.

[0033] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0034] In use, rotating the knob 42 causes the locking block 43 to rotate, ensuring that the locking block 43 does not obstruct the passage of the protective box 41. At this time, the torsion spring 45 stores force, allowing the connector 12 of the external wiring 3 to pass through the protective box 41 and connect to the component 2. After releasing the knob 42, the torsion force of the torsion spring 45 can drive the locking block 43 to rotate, allowing the locking block 43 to engage inside the slot 46, thus fixing and protecting the connector 12. This prevents the connector 12 from separating from the component 2 if the external wiring 3 is accidentally pulled. The component 2 generates heat during operation, and the heat-conducting plate 9... The heat is absorbed and conducted to the heat sink 11, which dissipates the heat to the outside of the housing 1, thus heats up the component 2 and prevents it from burning out. When the component 2 is damaged and needs to be repaired, the pull plate 67 is pulled to move the push block 66. At this time, the moving block 63 is not subjected to the squeezing force of the push block 66. The elastic force of the spring 65 pushes the moving block 63 to move. The moving block 63 moves the fixing block 64, causing the fixing block 64 to move out of the assembly block 62. The inspection cover 5 is pulled upward to separate the inspection cover 5 from the housing 1, making it easier to repair the component 2.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A photovoltaic junction box with a protective structure, characterized in that, The device includes a housing (1) and an external wiring (3). Components (2) are installed inside the housing (1). One end of the external wiring (3) is provided with an internal connector (12) that plugs into the housing (1), and the connector (12) is electrically connected to the component (2). A protective assembly (4) is provided on the outer wall of the housing (1). The protective assembly (4) includes a protective box (41), a knob (42), and a slot (46). The protective box (41) is fixedly installed on the outer wall of the housing (1), and the connector (12) penetrates the interior of the protective box (41). The rotary knob (42) is rotatably connected to the outer wall of the protective box (41) via a bearing, and a locking block (43) located inside the protective box (41) is provided at one end of the rotary knob (42). The locking groove (46) is opened on the outer wall of the connector (12), and the locking block (43) is locked inside the locking groove (46). An inner column (44) is provided on the inner wall of the protective box (41), and a torsion spring (45) connected to the locking block (43) is provided on the outer wall of the inner column (44). The torsion spring (45) is located between the inner column (44) and the locking block (43).

2. A photovoltaic junction box with a protective structure according to claim 1, characterized in that, The top of the box (1) is covered with an inspection cover (5). Assembly components (6) are provided on the outer walls of both sides of the box (1). The assembly components (6) include a fixed box (61), an assembly block (62) and a moving block (63). The fixed box (61) is fixedly installed on the outer wall of the box (1), and the assembly block (62) is fixedly installed on the outer wall of the inspection cover (5).

3. A photovoltaic junction box with a protective structure according to claim 2, characterized in that, The movable block (63) is slidably connected inside the fixed box (61), and a fixed block (64) is integrally connected to the outer wall of one side of the movable block (63). The fixed block (64) is compatible with the specifications of the assembly block (62).

4. A photovoltaic junction box with a protective structure according to claim 3, characterized in that, The inner wall of the fixed box (61) is provided with a spring (65) connected to the moving block (63), and the inside of the fixed box (61) is slidably connected to the push block (66).

5. A photovoltaic junction box with a protective structure according to claim 4, characterized in that, A pull plate (67) located outside the fixed box (61) is provided on the outer wall of one side of the push block (66), and a spring (68) connected to the pull plate (67) is provided on the inner wall of the fixed box (61).

6. A photovoltaic junction box with a protective structure according to claim 2, characterized in that, A sealing gasket (7) is provided on the outer wall of the bottom of the inspection cover (5), and a sealing groove (8) is provided on the top of the box body (1). The specifications of the sealing gasket (7) and the sealing groove (8) are compatible.

7. A photovoltaic junction box with a protective structure according to claim 1, characterized in that, A heat-conducting plate (9) is provided on one side of the outer wall of the box (1), and a heat insulation pad (10) is provided between the outer wall of the heat-conducting plate (9) and the inner wall of the box (1). Several heat sinks (11) located outside the box (1) are provided on one side of the outer wall of the heat-conducting plate (9).

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