Quick-connection type photovoltaic junction box

Abstract

The utility model provides a quick-connection type photovoltaic junction box, which comprises a box body with an accommodating cavity, a metal bottom plate arranged in the accommodating cavity, a diode electrically connected with the metal bottom plate and a bus bar quick-connection assembly, and the bus bar quick-connection assembly comprises an elastic piece, an elastic piece mounting seat, a movable clamping plate and a fixed clamping plate, the movable clamping plate is arranged at the end part of the elastic piece, the elastic piece provides a pushing force for pushing the movable clamping plate to the fixed clamping plate, a detachable baffle plate is arranged between the movable clamping plate and the fixed clamping plate, the movable clamping plate abuts against the baffle plate, a gap for a bus bar to pass through is arranged between the baffle plate and the fixed clamping plate, and the elastic piece is arranged between the movable clamping plate and the fixed clamping plate. When the baffle plate is taken down, the movable clamping plate and the fixed clamping plate clamp the bus bar. And the fixed clamping plate is electrically connected with the metal bottom plate. Through the arrangement, the bus bar is more convenient to mount and dismount, the mounting efficiency of the photovoltaic system is remarkably improved, and the labor cost and the time cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a quick-connect photovoltaic junction box. Background Technology

[0002] Photovoltaic modules are now widely used around the world. The photovoltaic junction box is a crucial component of a photovoltaic module, serving to connect circuits and protect the module. Currently, the industry primarily uses high-temperature welding to connect the junction box cables, diodes, and module busbars. This method is cumbersome, incurring high labor and material costs, and also releases harmful substances during the welding process.

[0003] Therefore, it is necessary to design a quick-connect photovoltaic junction box to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a quick-connect photovoltaic junction box that is lower in cost, easier to operate, and saves time and effort.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a quick-connect photovoltaic junction box, comprising a box body with a receiving cavity, a metal base plate disposed within the receiving cavity, a diode and a busbar quick-connect assembly electrically connected to the metal base plate, the busbar quick-connect assembly comprising an elastic element, an elastic element mounting base, a movable clamping plate and a fixed clamping plate, the movable clamping plate being disposed at the end of the elastic element, the elastic element providing a thrust to push the movable clamping plate toward the fixed clamping plate, a detachable baffle being provided between the movable clamping plate and the fixed clamping plate, the movable clamping plate abutting against the baffle, a gap being provided between the baffle and the fixed clamping plate for the busbar to pass through, when the baffle is removed, the movable clamping plate and the fixed clamping plate clamp the busbar; the fixed clamping plate is electrically connected to the metal base plate.

[0006] As a further improvement of the present invention, the quick-connect assembly of the busbar also includes two fixing blocks for fixing the baffle. The two fixing blocks are respectively disposed on the two sides of the baffle, and each fixing block has a longitudinal opening for the side of the baffle to be inserted.

[0007] As a further improvement of this utility model, the elastic element is a spring, one end of the spring is fixed on the elastic element mounting base, and the other end of the spring is fixed on the side of the movable clamping plate away from the fixed clamping plate, and the spring is in a compressed state.

[0008] As a further improvement of this utility model, a channel is formed between the two fixed blocks to guide the movement direction of the moving clamp.

[0009] As a further improved technical scheme of the utility model, the number of the bus bar quick connection assembly is two.

[0010] As a further improved technical scheme of the utility model, the fixed clamping plate of the two bus bar quick connection assemblies is arranged on both sides of the fixed clamping plate mounting seat.

[0011] As a further improved technical scheme of the utility model, the box body bottom is provided with a through hole for the bus bar to pass through, and the bus bar passes through the through hole and enters the gap between the baffle and the fixed clamping plate.

[0012] From the above technical scheme, the quick connection type photovoltaic junction box has the following advantages:

[0013] 1. Improve installation efficiency: the design of the quick connection type photovoltaic junction box makes the installation and disassembly process of the bus bar more convenient, and the operation can be completed without using tools. This design significantly improves the installation efficiency of the photovoltaic system, reduces the labor cost and time cost.

[0014] 2. Enhance connection reliability: through the close cooperation of the movable clamping plate and the fixed clamping plate, and the continuous thrust provided by the elastic member, the stable electrical connection between the bus bar and the metal bottom plate is ensured. This structural design effectively prevents the problem of poor contact caused by vibration or external factors, thereby improving the reliability and stability of the entire photovoltaic system.

[0015] 3. Easy to maintain and replace: due to the use of the detachable baffle design, when maintenance or replacement of the bus bar is required, the bus bar can be easily removed by simply removing the baffle without disassembling the entire junction box. This greatly reduces the difficulty and cost of maintenance, and also facilitates subsequent expansion and upgrading.

[0016] 4. Improve safety: the design of the junction box fully considers the electrical safety performance, through reasonable structural layout and material selection, ensures that good insulation performance can be maintained under various environmental conditions, reduces the risk of electric shock.

[0017] 5. Strong adaptability: the quick connection type photovoltaic junction box is suitable for various specifications and types of bus bars, and has strong universality and compatibility. Whether it is a new photovoltaic project or an existing system upgrade, it can easily cope with it.

[0018] 6. Prolong the service life: due to its compact structure, excellent material selection and easy maintenance, the quick connection type photovoltaic junction box can operate stably in harsh environmental conditions for a long time, thereby prolonging the service life of the entire photovoltaic system. Compared with the prior art, the utility model can save production cost, save operation time, and be more friendly to the environment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the top view of the quick connection type photovoltaic junction box of the embodiment of the utility model.

[0020] Figure 2 It is Figure 1 The enlarged view of the middle rectangular part.

[0021] Figure 3 It is Figure 2 The enlarged view of the middle circle part. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the utility model more clear, the utility model is described in detail below by combining with the drawings and specific embodiments.

[0023] Please refer to Figure 1 As shown in the figure, the utility model provides a quick connection type photovoltaic junction box, which comprises a box body 10 with a containing cavity 11, a metal bottom plate 20 arranged in the containing cavity 11, a diode and a busbar quick connection assembly 30 electrically connected with the metal bottom plate 20.

[0024] The busbar quick connection assembly 30 is used for quickly connecting the busbar and the diode. Figure 2 As shown in the figure, the busbar quick connection assembly 30 comprises an elastic piece 31, an elastic piece mounting seat 32, a movable clamping plate 33, a fixed clamping plate 34, a push plate 35 and a fixing block 36. The movable clamping plate 33 is arranged at the end of the elastic piece 31, and the elastic piece 31 provides a pushing force for pushing the movable clamping plate 33 to the fixed clamping plate 34. In the embodiment, the elastic piece 31 is a spring, one end of the spring is fixed on the elastic piece mounting seat 32, and the other end of the spring is fixed on the side of the movable clamping plate 33 away from the fixed clamping plate 34, and the spring is in a compressed state.

[0025] The fixed clamping plate 34 is fixedly arranged and electrically connected with the metal bottom plate 20, that is, the fixed clamping plate 34 is electrically connected with the diode. The push plate 35 is detachably arranged between the movable clamping plate 33 and the fixed clamping plate 34 and is used for limiting the movable clamping plate 33. The movable clamping plate 33 abuts against the push plate 35, and the push plate 35 and the fixed clamping plate 34 have a gap 37 for the busbar to pass through. When the push plate 35 is removed, the movable clamping plate 33 and the fixed clamping plate 34 clamp the busbar.

[0026] The number of the fixing block 36 is two, and the two fixing blocks 36 are arranged on the two side edges of the push plate 35, please refer to Figure 3As shown, a longitudinal opening 361 is formed on each fixing block 36 for the side edge of the baffle 35 to be inserted. In this way, the baffle 35 can be quickly pulled out of the longitudinal opening 361 when needed, releasing the movable clamp plate 33, and then quickly fixing the bus bar. The two fixing blocks 36 form a channel 362 for guiding the moving direction of the movable clamp plate 33, preventing the movable clamp plate 33 from deviating during movement and affecting the clamping effect of the movable clamp plate 33 and the fixed clamp plate 34.

[0027] In this embodiment, the number of bus bar quick connection assemblies 30 is preferably two, and a fixed clamp plate mounting seat 38 is arranged between the two bus bar quick connection assemblies 30, and the fixed clamp plates 34 of the two bus bar quick connection assemblies 30 are arranged on both sides of the fixed clamp plate mounting seat 38. In other embodiments, the number and arrangement of the bus bar quick connection assemblies can be designed according to the actual connection needs.

[0028] The bottom of the box body 10 is provided with a through hole for the bus bar to pass through, and the bus bar passes through the through hole and enters the gap 37 between the baffle 35 and the fixed clamp plate 34. During operation, the bus bar passes through the through hole at the bottom of the box body 10, and when the end of the bus bar is in the appropriate position in the gap 37, the baffle 35 is pulled out, and at this time the movable clamp plate 33 and the fixed clamp plate 34 quickly clamp and fix the bus bar, the bus bar and the fixed clamp plate 34 are electrically connected, and then the bus bar and the diode are electrically connected; after clamping, sealant can be used to fill the space between the bus bar, the movable clamp plate 33 and the fixed clamp plate 34, further enhancing the stability of the contact between the bus bar and the fixed clamp plate 34.

[0029] The terms such as "upper", "lower" and the like used herein to indicate spatial relative positions are for the purpose of facilitating the description of the relationship between one feature relative to another feature as shown in the drawings. It can be understood that the terms of spatial relative positions can be intended to include different orientations other than the orientation shown in the drawings, and should not be understood as limiting the claims.

[0030] In addition, the above embodiments are only used to illustrate the technical solutions described in the present application and are not intended to limit the technical solutions described in the present application. The understanding of the specification should be based on the technical personnel in the art. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical personnel in the art can still modify or equivalently replace the present application, and all technical solutions and improvements that do not deviate from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A quick connect photovoltaic junction box, characterized by: The box body includes a box body with a containing cavity, a metal bottom plate arranged in the containing cavity, a diode and a bus bar quick connection assembly electrically connected with the metal bottom plate. The bus bar quick connection assembly includes an elastic member, an elastic member mounting seat, a movable clamping plate and a fixed clamping plate. The movable clamping plate is arranged at the end of the elastic member. The elastic member provides a pushing force for pushing the movable clamping plate towards the fixed clamping plate. A detachable baffle is arranged between the movable clamping plate and the fixed clamping plate. The movable clamping plate abuts against the baffle. The baffle and the fixed clamping plate have a gap for the bus bar to pass through. When the baffle is removed, the movable clamping plate and the fixed clamping plate clamp the bus bar. The fixed clamping plate is electrically connected with the metal bottom plate.

2. The quick-connect photovoltaic junction box of claim 1, wherein: The bus bar quick connection assembly further includes two fixed blocks for fixing the baffle. The two fixed blocks are arranged on the two side edges of the baffle. A longitudinal opening is formed on each fixed block for inserting the side edge of the baffle.

3. The quick-connect photovoltaic junction box of claim 2, wherein: The elastic member is a spring. One end of the spring is fixed on the elastic member mounting seat. The other end of the spring is fixed on the side of the movable clamping plate away from the fixed clamping plate. The spring is in a compressed state.

4. The quick-connect photovoltaic junction box of claim 2, wherein: A channel is formed between the two fixed blocks for guiding the movement direction of the movable clamping plate.

5. The quick-connect photovoltaic junction box of claim 1, wherein: The number of the bus bar quick connection assemblies is two.

6. The quick-connect photovoltaic junction box of claim 1, wherein: A fixed clamping plate mounting seat is further included. The fixed clamping plates of the two bus bar quick connection assemblies are arranged on the two sides of the fixed clamping plate mounting seat.

7. The quick-connect photovoltaic junction box of claim 1, wherein: A through hole is formed in the bottom of the box body for the bus bar to pass through. The bus bar passes through the through hole and enters the gap between the baffle and the fixed clamping plate.

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