A low-loss terminal device for photovoltaic power generation

Abstract

The utility model relates to photovoltaic equipment technical field discloses a low loss wiring terminal equipment for photovoltaic power generation, including female head and male head, the left and right sides of male head all are fixedly installed with fixed pipe, the inner chamber sliding connection of fixed pipe has inserted rod, the inner chamber of fixed pipe is equipped with spring no.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment technology, and more specifically, to a low-loss terminal block device for photovoltaic power generation. Background Technology

[0002] When installing photovoltaic (PV) power generation equipment, terminal blocks are typically used to connect the devices. MC4 connectors are a commonly used type of terminal block, which connects via the insertion of male and female connectors. However, both male and female connectors are usually made of plastic, and the female connector is locked in place using clips. In actual use, since PV power generation equipment is often installed on building rooftops or in open areas, the plastic material can become brittle over time. This can lead to the clips becoming damaged and unable to spring back when the equipment needs to be removed for maintenance. In such cases, the entire male connector needs to be replaced, which is costly. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a low-loss terminal block device for photovoltaic power generation, which has the advantage of low cost.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a low-loss terminal block device for photovoltaic power generation, comprising a female connector and a male connector, wherein a fixing tube is fixedly installed on both the left and right sides of the male connector, a plug rod is slidably connected to the inner cavity of the fixing tube, a spring is provided in the inner cavity of the fixing tube, a slot is provided in the middle of the male connector, a clip is inserted into the inner cavity of the slot, and a locking hole is provided at the top of the clip.

[0005] As a preferred embodiment of this utility model, a connecting ring and a pull plate are fixedly installed at the middle part of the spring and at the end away from the center of the male end, respectively. The connecting ring is slidably connected inside the fixed tube, and the pull plate is located on the outside of the fixed tube.

[0006] As a preferred embodiment of this utility model, the left and right ends of the spring are fixedly connected to the fixed tube and the connecting ring, respectively, and the spring is sleeved on the outside of the plug rod.

[0007] As a preferred embodiment of this utility model, both the female and male ends are fixedly equipped with threaded sections, a locking ring is engaged on the outer side of the threaded section, and a sealing ring is placed in the inner cavity of the locking ring.

[0008] As a preferred embodiment of this utility model, a fixing post is fixedly installed on both the left and right sides of the top of the female head, and a slider is slidably connected to the surface of the fixing post. A push shaft is fixedly installed on the side of the slider closer to the center of the female head, and a lever is fixedly installed on the side of the slider away from the center of the female head. A spring is fixedly installed on the top of the slider.

[0009] In a preferred embodiment of this invention, the push shaft is cylindrical and located below the clip.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a clip inserted into a slot. When the clip is damaged, a pull plate can be pulled, which moves the connecting ring and the plug rod, causing the plug rod to be pulled out from the locking hole. At this time, the clip can be removed directly. After removal, a new clip can be inserted into the slot, and the plug rod is fixed by inserting it into the locking hole. This allows for individual replacement of damaged clips, reducing usage costs. Furthermore, the copper core used in the connection line of this device achieves low-loss operation.

[0011] 2. When it is necessary to separate the female and male heads, the slider and push shaft can be pushed up directly by the lever. When the push shaft contacts the clip, the push shaft contacts the inclined surface of the clip and pushes the push shaft to the center of the female head, so that the clip loses its lock with the female head, thereby opening the female and male heads. When opening, there is no need for tools or pressing the clip by hand, and the operation is simple and convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the overall exploded connection of this utility model; Figure 4 This is a schematic cross-sectional view of the male head of this utility model. Figure 5 This utility model Figure 4 Enlarged diagram of point B in the middle.

[0013] In the diagram: 1. Female connector; 2. Male connector; 3. Threaded section; 4. Sealing ring; 5. Locking ring; 6. Slot; 7. Fixing tube; 8. Connecting rod; 9. Spring 1; 10. Clamp; 11. Fixing post; 12. Connecting ring; 13. Pull plate; 14. Locking hole; 15. Slider; 16. Push shaft; 17. Lever; 18. Spring 2. Detailed Implementation

[0014] 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.

[0015] like Figures 1 to 5 As shown, this utility model provides a low-loss terminal block device for photovoltaic power generation, including a female connector 1 and a male connector 2. A fixing tube 7 is fixedly installed on both the left and right sides of the male connector 2. A plug rod 8 is slidably connected to the inner cavity of the fixing tube 7. A spring 9 is provided in the inner cavity of the fixing tube 7. A slot 6 is opened in the middle of the male connector 2. A clip 10 is inserted into the inner cavity of the slot 6. A locking hole 14 is opened at the top of the clip 10.

[0016] By inserting the clip 10 into the slot 6, when the clip 10 is damaged, the pull plate 13 can be pulled, which will move the connecting ring 12 and the plug rod 8, causing the plug rod 8 to be pulled out from the locking hole 14. At this time, the clip 10 can be directly removed. After removal, a new clip 10 can be inserted into the slot 6, and the plug rod 8 can be fixed by inserting it into the locking hole 14. This allows the clip 10 to be replaced individually when it is damaged, reducing the cost of use.

[0017] Among them, a connecting ring 12 and a pull plate 13 are fixedly installed at the middle part of spring 9 and at the end away from the center of male head 2, respectively. The connecting ring 12 is slidably connected inside the fixed tube 7, and the pull plate 13 is located on the outside of the fixed tube 7.

[0018] The connecting ring 12 is used to provide an installation position for the spring 9, and the inner cavity of the fixing tube 7 is sealed by the side wall of the connecting ring 12 fitting against the inner wall of the fixing tube 7. The pull plate 13 is provided to facilitate the easy pulling of the plug rod 8 when moving it.

[0019] Among them, the left and right ends of spring 9 are fixedly connected to the fixed tube 7 and the connecting ring 12 respectively, and spring 9 is sleeved on the outside of the plug rod 8.

[0020] By setting spring 9, during normal use, the elasticity of spring 9 applies pressure to the center of male head 2 on connecting ring 12, so that plug rod 8 can be stably inserted into locking hole 14. Since there is no human interference during the use of photovoltaic power generation equipment, and the equipment is usually located below photovoltaic power generation panel, there will be no equipment fluctuation or collision that would cause the device to move. Therefore, the elasticity provided by spring 9 can stably lock clip 10.

[0021] Both the female head 1 and the male head 2 are fixedly installed with threaded sections 3. A locking ring 5 is engaged on the outer side of the threaded section 3, and a sealing ring 4 is placed in the inner cavity of the locking ring 5.

[0022] By setting a sealing ring 4, the connecting wire and the threaded section 3 are sealed. After the connecting wire is inserted into the female head 1 and the male head 2, the seal is formed to prevent water from entering.

[0023] Among them, the left and right sides of the top of the female head 1 are fixedly installed with fixed posts 11, the surface of the fixed posts 11 is slidably connected with sliders 15, the side of sliders 15 closer to the center of the female head 1 is fixedly installed with push shaft 16, the side of sliders 15 away from the center of the female head 1 is fixedly installed with lever 17, and the top of sliders 15 is fixedly installed with spring 18.

[0024] When it is necessary to separate the female head 1 and the male head 2, the slider 15 and the push shaft 16 can be pushed up directly by the lever 17. When the push shaft 16 contacts the clip 10, the push shaft 16 contacts the inclined surface of the clip 10 and pushes the push shaft 16 toward the center of the female head 1, so that the clip 10 loses its lock with the female head 1, thereby opening the female head 1 and the male head 2. When opening, there is no need for tools or pressing the clip 10 by hand. The operation is simple and convenient.

[0025] Among them, the push shaft 16 is cylindrical and is located below the clip 10.

[0026] By making the push shaft 16 cylindrical and placing it below the clip 10, it can be ensured that it can contact the clip 10 when the clip 10 moves upward, thereby pushing the clip 10.

[0027] Working principle and usage process of this utility model: When in use, the inner core is placed on the end of the connecting wire. The inner core used on the connecting wire is made of copper to achieve low loss. Then, after inserting the connecting wire into the female connector 1 and the male connector 2, the sealing ring 4 is placed into the locking ring 5 and the locking ring 5 is tightened. Finally, the female connector 1 and the male connector 2 are connected. When connecting, the clip 10 is inserted into the locking groove at the top of the male connector 2. When the end of the clip 10 leaves the locking groove, its end is locked on the male connector 2 to achieve fixation. When it is necessary to separate the female head 1 and the male head 2, the slider 15 and the push shaft 16 are pushed up directly by the lever 17. When the push shaft 16 contacts the clip 10, the push shaft 16 contacts the inclined surface of the clip 10 and pushes the push shaft 16 toward the center of the female head 1, so that the clip 10 loses its lock with the female head 1, thereby opening the female head 1 and the male head 2. When the clip 10 is damaged and cannot lock properly, pull the pull plate 13. The pull plate 13 will move the connecting ring 12 and the plug rod 8, so that the plug rod 8 can be pulled out from the locking hole 14. At this time, the clip 10 can be taken out directly. After taking it out, a new clip 10 can be replaced and reinserted into the slot 6. Then, release the pull plate 13. Under the elastic action of the spring 9, the plug rod 8 will be inserted into the locking hole 14 to fix the clip 10.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-loss terminal block device for photovoltaic power generation, comprising a female connector (1) and a male connector (2), characterized in that: The male head (2) is fixedly installed with a fixing tube (7) on both the left and right sides. The inner cavity of the fixing tube (7) is slidably connected with a plug rod (8). The inner cavity of the fixing tube (7) is provided with a spring (9). The middle part of the male head (2) is provided with a slot (6). The inner cavity of the slot (6) is inserted with a clip (10). The top of the clip (10) is provided with a locking hole (14).

2. The low-loss terminal block device for photovoltaic power generation according to claim 1, characterized in that: A connecting ring (12) and a pull plate (13) are fixedly installed at the middle part of the spring (9) and at the end away from the center of the male head (2), respectively. The connecting ring (12) is slidably connected inside the fixed tube (7), and the pull plate (13) is located on the outside of the fixed tube (7).

3. The low-loss terminal block device for photovoltaic power generation according to claim 2, characterized in that: The left and right ends of the spring (9) are fixedly connected to the fixed tube (7) and the connecting ring (12) respectively, and the spring (9) is sleeved on the outside of the plug rod (8).

4. The low-loss terminal block device for photovoltaic power generation according to claim 1, characterized in that: Both the female head (1) and the male head (2) are fixedly installed with threaded sections (3), and a locking ring (5) is engaged on the outer side of the threaded section (3). A sealing ring (4) is placed in the inner cavity of the locking ring (5).

5. A low-loss terminal block device for photovoltaic power generation according to claim 1, characterized in that: Fixed posts (11) are fixedly installed on both the left and right sides of the top of the female head (1). A slider (15) is slidably connected to the surface of the fixed post (11). A push shaft (16) is fixedly installed on the side of the slider (15) closer to the center of the female head (1). A lever (17) is fixedly installed on the side of the slider (15) away from the center of the female head (1). A spring (18) is fixedly installed at the top of the slider (15).

6. The low-loss terminal block device for photovoltaic power generation according to claim 5, characterized in that: The push shaft (16) is cylindrical and is located below the clip (10).

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