A photovoltaic combiner box

Abstract

This utility model relates to the field of photovoltaic technology, specifically a photovoltaic combiner box, comprising: a box body, including a box shell, the surface of which is connected to a protective door via a hinge, and a connecting hole extending through the bottom end of the box shell; a restraining mechanism, including a connecting sleeve, the connecting sleeve extending through the connecting hole through the bottom surface of the box shell, a positioning sleeve fixedly connected to the surface of the connecting sleeve, and a limit nut and an adjusting nut threaded onto the outer surface of the connecting sleeve. This utility model, through the connection of a support spring and a pressure plate, and the connection of a stop plate and a support spring, achieves a restraining and supporting effect on the connecting wire harness by changing the action angle of the pressure plate, thereby improving the stability of the connecting wire connection. By changing the action position of the stop post, the distance between the control plate and the fixed plate is controlled, achieving a clamping and supporting effect on the wire harness, further improving the connection stability of the wire harness.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, specifically a photovoltaic combiner box. Background Technology

[0002] In a photovoltaic power generation system, the combiner box is a wiring device that ensures the orderly connection of photovoltaic modules and the function of current collection.

[0003] Using combiner boxes ensures that the photovoltaic system can be easily disconnected during maintenance and inspection, and reduces the scope of power outages when the photovoltaic system fails. However, when using existing combiner boxes, there is no binding mechanism for the wiring harness, so the stability of the wiring harness after wiring cannot be guaranteed during wiring operations. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic combiner box to solve the problem mentioned in the background art that the combiner box does not have a binding mechanism for the wire harness, and the wire harness cannot be guaranteed to be used stably after wiring during the wiring operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic combiner box, comprising:

[0006] The box body includes a box shell, the surface of which is connected to a protective door by a hinge, and a connecting hole is provided through the bottom end of the box shell;

[0007] The restraint mechanism includes a connecting sleeve that penetrates the bottom surface of the housing through a connecting hole. A positioning sleeve is fixedly connected to the surface of the connecting sleeve. A limit nut and an adjusting nut are threaded onto the outer surface of the connecting sleeve. A pressure plate is connected to the end of the connecting sleeve away from the positioning sleeve. A support spring is fixedly connected to the inner wall of the pressure plate. A stop plate is connected to the inner wall of the pressure plate.

[0008] Preferably, the positioning sleeve abuts against the inner wall of the housing through the connecting sleeve and the limiting nut, and both the positioning sleeve and the connecting sleeve have through holes on their surfaces, and the positioning sleeve and the connecting sleeve are connected by a passage.

[0009] Preferably, the adjusting nut consists of two parts: one part has the same shape as the limiting nut, and the other part is cylindrical. The inner wall of the adjusting nut and the outer surface of the pressure plate are in abutting contact.

[0010] Preferably, the outer surface of the pressure plate is inclined, the pressure plates are evenly distributed at the bottom of the connecting sleeve, the abutment is elastically connected to the pressure plate by a support spring, and a groove is formed on the surface of the abutment away from the pressure plate.

[0011] Preferably, the interior of the housing is provided with a clamping mechanism, which includes a fixed clamping plate fixedly connected to the inner wall of the housing. A limit rod is fixedly connected to the surface of the fixed clamping plate. A control clamping plate is slidably connected to the fixed clamping plate through the limit rod. An adjusting screw is penetrated through the surface of the housing. A screw sleeve is fitted onto the outer surface of the adjusting screw. A control frame is fixedly connected to the surface of the adjusting screw. A stop post is fixedly connected to the surface of the control frame.

[0012] Preferably, the fixed clamp and the control clamp have the same shape, and the opposing surfaces of the fixed clamp and the control clamp are provided with through grooves. A spring is sleeved on the outer surface of the limiting rod, and the control clamp is elastically slidably connected to the fixed clamp through the limiting rod and the spring.

[0013] Preferably, the control frame is in the shape of a long plate, the abutment is in the shape of a cone, and the abutment is in two sets connected to both ends of the control frame, with the abutment and the outer surface of the control clamp in contact.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The connection between the housing and the connecting hole facilitates the connection of the connecting sleeve onto the housing. The positioning sleeve and the limiting nut provide a fixed support for the connecting sleeve's position on the housing. With the abutting connection of the adjusting nut and the pressure plate, and the connection between the support spring and the pressure plate, and the connection between the abutting plate and the support spring, the angle of the pressure plate is changed, thereby achieving a binding and support effect on the connecting wire harness and improving the stability of the connecting wire connection.

[0016] 2. By connecting the fixed clamping plate and the housing, the elastic sliding effect between the control clamping plate and the fixed clamping plate is achieved under the action of the limit rod and the spring. By connecting the adjusting screw and the screw sleeve, and the control frame and the abutment, the distance between the control clamping plate and the fixed clamping plate is controlled by changing the position of the abutment, thereby achieving the clamping and support effect on the wire harness and further improving the connection stability of the wire harness. Attached Figure Description

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

[0018] Figure 2 This is a bottom-view perspective view of the structure of this utility model;

[0019] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 4 This is a partial sectional perspective view of the connection structure between the housing and the connecting sleeve of this utility model;

[0021] Figure 5 This is a partial sectional perspective view of the connection structure between the housing and the fixing clamp of this utility model.

[0022] In the diagram: 1. Shell; 11. Protective door; 12. Connecting hole; 2. Connecting sleeve; 21. Positioning sleeve; 22. Limiting nut; 23. Adjusting nut; 24. Pressure plate; 25. Support spring; 26. Support plate; 3. Fixing clamp; 31. Control clamp; 32. Limiting rod; 33. Adjusting screw; 34. Screw sleeve; 35. Control frame; 36. Support column. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 One embodiment provided by this utility model:

[0025] A photovoltaic combiner box includes:

[0026] The enclosure includes a shell 1. A protective door 11 is connected to the surface of the shell 1 by a hinge. A connection hole 12 is provided through the bottom of the shell 1. With the connection between the shell 1 and the protective door 11, the protective door 11 is used to protect the devices placed inside the shell 1.

[0027] The restraint mechanism includes a connecting sleeve 2, which penetrates the bottom surface of the housing 1 through a connecting hole 12. A positioning sleeve 21 is fixedly connected to the surface of the connecting sleeve 2. A limit nut 22 and an adjusting nut 23 are threaded onto the outer surface of the connecting sleeve 2. A pressure plate 24 is connected to the end of the connecting sleeve 2 away from the positioning sleeve 21. A support spring 25 is fixedly connected to the inner wall of the pressure plate 24. A stop plate 26 is connected to the inner wall of the pressure plate 24. Through the connection between the connecting sleeve 2 and the connecting hole 12, the limiting nut 22 and the positioning sleeve 21 provide support for the position of the connecting sleeve 2 on the housing 1. Under the action of the pressure plate 24 and the stop plate 26, the restraint and support effect of the wire harness is achieved.

[0028] Furthermore, the positioning sleeve 21 abuts against the inner wall of the housing 1 through the connecting sleeve 2 and the limiting nut 22. Both the positioning sleeve 21 and the connecting sleeve 2 have through holes on their surfaces, allowing the positioning sleeve 21 and the connecting sleeve 2 to be connected. Through the connection of the positioning sleeve 21 and the connecting sleeve 2, the connecting hole 12 facilitates the connection of the connecting sleeve 2 inside the housing 1. With the threaded connection of the limiting nut 22 and the connecting sleeve 2, the position of the connecting sleeve 2 on the housing 1 is supported.

[0029] Furthermore, the adjusting nut 23 consists of two parts. One part of the adjusting nut 23 has the same shape as the limiting nut 22, and the other part of the adjusting nut 23 is cylindrical. The inner wall of the adjusting nut 23 and the outer surface of the pressure plate 24 abut against each other. Through the abutting connection between the adjusting nut 23 and the pressure plate 24, the angle of action of the pressure plate 24 is changed under the rotation of the adjusting nut 23, so as to achieve the binding and support effect on the wire harness.

[0030] Furthermore, the outer surface of the pressure plate 24 is inclined, and the pressure plates 24 are evenly distributed at the bottom of the connecting sleeve 2. The abutment plate 26 is elastically connected to the pressure plate 24 through the support spring 25. A groove is provided on the surface of the abutment plate 26 away from the pressure plate 24. Through the connection of the pressure plate 24 and the support spring 25, the abutment plate 26 achieves an elastic connection effect on the pressure plate 24. The connection between the abutment plate 26 and the groove facilitates the abutment restriction operation of the wire harness.

[0031] Furthermore, the housing 1 is equipped with a clamping mechanism, which includes a fixed clamping plate 3. The fixed clamping plate 3 is fixedly connected to the inner wall of the housing 1. A limit rod 32 is fixedly connected to the surface of the fixed clamping plate 3. A control clamping plate 31 is slidably connected to the fixed clamping plate 3 through the limit rod 32. An adjusting screw 33 is connected through the surface of the housing 1. A screw sleeve 34 is sleeved on the outer surface of the adjusting screw 33. A control frame 35 is fixedly connected to the surface of the adjusting screw 33. A stop post 36 is fixedly connected to the surface of the control frame 35. Through the connection between the fixed clamping plate 3 and the limit rod 32, the sliding limitation effect between the control clamping plate 31 and the fixed clamping plate 3 is achieved under the action of the limit rod 32. Under the abutting contact between the stop post 36 and the control clamping plate 31, the distance between the control clamping plate 31 and the fixed clamping plate 3 is controlled, thereby achieving a further clamping and support effect for the wire harness.

[0032] Furthermore, the fixed clamp 3 and the control clamp 31 have the same shape, and through grooves are opened on the opposing surfaces of the fixed clamp 3 and the control clamp 31. A spring is sleeved on the outer surface of the limiting rod 32. The control clamp 31 is elastically slidably connected to the fixed clamp 3 through the limiting rod 32 and the spring. Through the connection between the fixed clamp 3 and the limiting rod 32, under the action of the spring on the limiting rod 32, the elastic control effect between the control clamp 31 and the fixed clamp 3 is achieved.

[0033] Furthermore, the control frame 35 is long and plate-shaped, and the abutment 36 is conical in shape. The abutment 36 is in two sets connected to both ends of the control frame 35. The abutment 36 and the outer surface of the control clamp 31 are in contact. With the control frame 35 and the adjusting screw 33 connected, and through the connection of the adjusting screw 33 and the screw sleeve 34, the control effect of the control frame 35 is achieved. With the abutment 36 and the control frame 35 connected, the position of the abutment 36 and the control clamp 31 is changed, thereby achieving the effect of controlling the distance between the control clamp 31 and the fixed clamp 3.

[0034] Working principle: When connecting the wire harness, the wire harness passes through the connecting sleeve 2, and then passes through the fixing clamp 3 and the control clamp 31 to complete the wiring operation. Then, the screw sleeve 34 is rotated to change the position of the control frame 35. With the control frame 35 and the abutment 36 connected, the abutment 36 and the control clamp 31 make contact, so that the fixing clamp 3 and the control clamp 31 clamp and support the wire harness. Finally, the adjusting nut 23 is rotated to make the adjusting nut 23 and the pressure plate 24 make contact, changing the angle of the pressure plate 24. With the support spring 25 and the abutment 26 connected, the clamping and binding operation of the wire harness is completed, improving the stability of the wire harness wiring.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combiner box for photovoltaic applications, characterized in that, include: The box body includes a box shell (1), the surface of which is connected to a protective door (11) by a hinge, and a connecting hole (12) is provided through the bottom end of the box shell (1); The restraint mechanism includes a connecting sleeve (2), which penetrates the bottom surface of the housing (1) through a connecting hole (12). A positioning sleeve (21) is fixedly connected to the surface of the connecting sleeve (2). A limit nut (22) and an adjusting nut (23) are threaded onto the outer surface of the connecting sleeve (2). A pressure plate (24) is connected to the end of the connecting sleeve (2) away from the positioning sleeve (21). A support spring (25) is fixedly connected to the inner wall of the pressure plate (24). A stop plate (26) is connected to the inner wall of the pressure plate (24).

2. The combiner box for photovoltaic applications according to claim 1, characterized in that: The positioning sleeve (21) abuts against the inner wall of the housing (1) through the connecting sleeve (2) and the limiting nut (22). Both the positioning sleeve (21) and the connecting sleeve (2) have through holes, and the positioning sleeve (21) and the connecting sleeve (2) are connected by a passage.

3. The combiner box for photovoltaic applications of claim 1, wherein: The adjusting nut (23) consists of two parts. One part of the adjusting nut (23) and the limiting nut (22) have the same shape, and the other part of the adjusting nut (23) is cylindrical. The inner wall of the adjusting nut (23) and the outer surface of the pressure plate (24) are in contact.

4. The combiner box for photovoltaic applications of claim 1, wherein: The outer surface of the pressure plate (24) is inclined. The pressure plates (24) are evenly distributed at the bottom of the connecting sleeve (2). The abutment plate (26) is elastically connected to the pressure plate (24) through the support spring (25). A groove is provided on the surface of the abutment plate (26) away from the pressure plate (24).

5. The combiner box for photovoltaic applications of claim 1, wherein: The housing (1) is provided with a clamping mechanism inside. The clamping mechanism includes a fixed clamping plate (3), which is fixedly connected to the inner wall of the housing (1). A limit rod (32) is fixedly connected to the surface of the fixed clamping plate (3). A control clamping plate (31) is slidably connected to the fixed clamping plate (3) through the limit rod (32). An adjusting screw (33) is connected through the surface of the housing (1). A screw sleeve (34) is sleeved on the outer surface of the adjusting screw (33). A control frame (35) is fixedly connected to the surface of the adjusting screw (33). A stop post (36) is fixedly connected to the surface of the control frame (35).

6. The combiner box for photovoltaic applications of claim 5, wherein: The fixed clamp (3) and the control clamp (31) have the same shape. The opposing surfaces of the fixed clamp (3) and the control clamp (31) are provided with through grooves. The outer surface of the limiting rod (32) is fitted with a spring. The control clamp (31) is elastically slidably connected to the fixed clamp (3) through the limiting rod (32) and the spring.

7. The combiner box for photovoltaic applications of claim 5, wherein: The control frame (35) is long and plate-shaped, and the abutment (36) is conical in shape. The abutment (36) is in two sets connected to both ends of the control frame (35). The abutment (36) and the outer surface of the control clamp (31) are in contact.

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