A waterproof sealing box for photovoltaic panel connection cables

Abstract

This utility model discloses a waterproof sealing box for photovoltaic panel connecting cables, belonging to the technical field of waterproof boxes. This waterproof sealing box for photovoltaic panel connecting cables includes a main body and a wiring mechanism. The main body includes a waterproof box and a waterproof cover. An annular groove is formed at the upper end of the waterproof box, and an annular sealing strip is interference-fitted into the groove. An annular mating block is installed at the bottom end of the waterproof cover, interlocking with the annular groove, and the bottom end of the annular mating block abuts against the upper surface of the annular sealing strip. A first wiring port is formed on one side of the waterproof box, and several second wiring ports are formed on the other side. The wiring mechanism includes several connectors, one end of which is respectively inserted into the first and second wiring ports. Each connector has a limiting ring fitted at one end, and a fastening head is threaded onto the end of each connector inside the waterproof box. A locking cap is threaded onto the other end of each connector. This utility model effectively improves the practicality of RR (Rapid Residual Component) and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of waterproof box technology, specifically a waterproof sealing box for photovoltaic panel connection cables. Background Technology

[0002] As a core component of a solar power generation system, the safe and stable operation of the connecting cables of photovoltaic panels directly affects the power generation efficiency and lifespan of the entire system. In complex outdoor environments, the joints of photovoltaic panel connecting cables are susceptible to corrosion from rain, moisture, dust, and other factors.

[0003] Based on the above, the inventors have discovered the following problems: Existing photovoltaic panel connection cables are typically protected using simple waterproof tape wrapping or ordinary junction boxes, but these methods suffer from poor waterproofing, inconvenient installation, and short service life. Especially in long-term outdoor environments, seal failure is prone to occur, leading to joint oxidation, short circuits, and other malfunctions, increasing maintenance costs.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a waterproof sealing box for photovoltaic panel connection cables, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof sealing box for photovoltaic panel connection cables, so as to solve the problem mentioned in the background art that existing photovoltaic panel connection cables are usually protected by simple waterproof tape wrapping or ordinary junction boxes.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A waterproof sealing box for photovoltaic panel connection cables includes a main body and a wiring mechanism. The main body includes a waterproof box and a waterproof cover. The upper end of the waterproof box has an annular groove, and an annular sealing strip is interference-fitted into the inside of the annular groove. An annular mating block is installed at the bottom end of the waterproof cover. The annular mating block is inserted into the annular groove, and the bottom end of the annular mating block abuts against the upper end face of the annular sealing strip. A first wiring port is opened on one side of the waterproof box, and several second wiring ports are opened on the other side of the waterproof box. The wiring mechanism includes several wiring heads. One end of each wiring head is inserted into the first wiring port and the second wiring port respectively. A limiting ring is fitted on one end of each wiring head. A fastening head is threaded to the end of each wiring head inside the waterproof box, and a locking cap is threaded to the other end of each wiring head.

[0008] Furthermore, a first sealing gasket is embedded in the inner side of each limiting ring, and one side of each first sealing gasket abuts against the outer side of the waterproof box.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the first sealing gasket on the inner side of the limiting ring abuts tightly against the outer side of the waterproof box, which can fill the gap between the connector and the waterproof box, prevent water from seeping in from the outside of the connector, enhance the sealing of the connector, and improve the overall waterproof effect in conjunction with other sealing structures.

[0010] Furthermore, a second sealing gasket is embedded on one side of each fastening head, and one side of each second sealing gasket abuts against the inside of the waterproof box.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the second sealing gasket on one side of the fastening head abuts against the inside of the waterproof box, further sealing the connection gap between the connector and the connector from the inside of the waterproof box, forming a double seal with the first sealing gasket, effectively preventing moisture from entering the inside of the waterproof box and improving the reliability of the seal.

[0012] Furthermore, each of the connectors is equipped with a locking sleeve at one end, and the locking sleeve is provided with a sealing sleeve that matches its inner wall.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the locking sleeve at one end of the connector cooperates with the sealing sleeve, and the sealing sleeve can tightly wrap the cable that passes through, fill the gap between the cable and the connector, prevent moisture from seeping into the waterproof box along the surface of the cable, and enhance the sealing performance of the cable connection part.

[0014] Furthermore, the locking cap has a locking groove inside that is adapted to the outside of the locking sleeve, and the inner side of the locking groove abuts against the outer side of the locking sleeve.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the locking groove of the locking cap abuts against the outside of the locking sleeve. When the locking cap is tightened, the locking sleeve can be squeezed, causing the sealing sleeve to further shrink and fit tightly against the cable, thereby strengthening the sealing effect. At the same time, the position of the cable is fixed to prevent the seal from failing due to cable shaking.

[0016] Furthermore, a pair of fixing blocks are installed on both sides of the upper end of the waterproof box, and a pair of connecting blocks are installed on both ends of the waterproof cover. A screw is movably inserted into the center of each connecting block, and the bottom end of the screw is threadedly connected to the fixing block.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the connecting block of the waterproof cover is connected to the fixing block of the waterproof box by screws, which can firmly fix the waterproof cover to the waterproof box, ensure that the annular mating block tightly squeezes the annular sealing strip, maintain the sealing performance, and is suitable for long-term fixed use of the waterproof box.

[0018] Furthermore, both ends of the waterproof box are equipped with buckles, and both ends of the waterproof cover are equipped with retaining rings, which are engaged with the buckles.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the buckle of the waterproof box and the retaining ring of the waterproof cover can be engaged to help fix the waterproof cover, which is suitable for situations where the waterproof box and the waterproof cover need to be opened and closed repeatedly, and avoids damage to the fixing block caused by repeated tightening and loosening of screws.

[0020] Furthermore, a connector is fixedly installed at the bottom of the interior of the waterproof box.

[0021] The beneficial effects of adopting the above-mentioned further solution are that the connector inside the waterproof box facilitates the termination and fixation of the photovoltaic panel connection cables, making the cable connection standardized and orderly, avoiding poor contact or short circuit caused by messy wiring, and providing a stable connection foundation for the cables, thereby improving the operational reliability of the photovoltaic system.

[0022] Furthermore, the annular sealing strip, the first sealing gasket, the second sealing gasket, and the sealing sleeve are all made of perfluororubber.

[0023] The beneficial effect of adopting the above-mentioned further solution is that by setting the annular sealing strip, the first sealing gasket, the second sealing gasket, and the sealing sleeve all to be made of perfluororubber, the sealing effect is improved, while also having temperature resistance and chemical corrosion resistance, further improving the waterproof effect of the waterproof box.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: The waterproof box for photovoltaic panel connecting cables has a main waterproof box and waterproof cover that cooperate with an annular groove, an annular sealing strip, and an annular mating block to form the first line of defense against external moisture infiltration; the connector of the wiring mechanism is installed by connecting through the first and second connectors, and the external cable passes through the inside of the connector and is connected inside the waterproof box by a connector; the limiting ring and fastening head fix the position of the connector, and the locking cap enhances the sealing between the cable and the connector. The overall structure, through multiple sealing designs, ensures the waterproof performance of the photovoltaic panel connecting cables, avoids short circuits or damage caused by water ingress, and improves the safety and stability of the photovoltaic system. The first sealing gasket on the inner side of the limiting ring abuts tightly against the outer side of the waterproof box, filling the gap between the connector and the waterproof box, preventing moisture from seeping in from the outside of the connector, enhancing the sealing of the connector, and improving the overall waterproof effect in conjunction with other sealing structures. The locking groove of the locking cap abuts against the outer side of the locking sleeve. When the locking cap is tightened, the locking sleeve can be squeezed, causing the sealing sleeve to further shrink and fit tightly against the cable, strengthening the sealing effect, and fixing the cable position to prevent the seal from failing due to cable shaking. By making the annular sealing strip, the first sealing gasket, the second sealing gasket, and the sealing sleeve all made of perfluororubber, the sealing effect is improved, and it also has temperature resistance and chemical corrosion resistance, further improving the waterproof effect of the waterproof box. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the waterproof sealing box for photovoltaic panel connecting cables disclosed in an embodiment of the present invention. Figure 1 ;

[0026] Figure 2 This is a three-dimensional structural diagram of the waterproof sealing box for photovoltaic panel connecting cables disclosed in an embodiment of the present invention. Figure 2 ;

[0027] Figure 3 This is a three-dimensional structural diagram of the waterproof sealing box for photovoltaic panel connecting cables disclosed in an embodiment of the present invention. Figure 3 ;

[0028] Figure 4 This is a three-dimensional structural diagram of the connector cross-section of the waterproof box for photovoltaic panel connecting cables disclosed in this embodiment of the utility model;

[0029] Figure 5 The photovoltaic panel connection cable sealing and waterproof box disclosed in this utility model embodiment Figure 1 An enlarged schematic diagram of the A structure.

[0030] In the diagram: 1. Main body; 101. Waterproof box; 102. Fixing block; 103. Waterproof cover; 104. Connecting block; 105. Screw; 106. Ring groove; 107. Connector; 108. Annular sealing strip; 109. Snap ring; 110. Snap buckle; 111. Annular mating block; 2. Wiring mechanism; 201. Connector head; 202. Locking cap; 203. Limiting ring; 204. Sealing sleeve; 205. Fastening head; 206. Locking groove; 207. Locking sleeve. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1 - Figure 5This utility model provides a technical solution: a waterproof sealing box for photovoltaic panel connection cables, including a main body 1 and a wiring mechanism 2. The main body 1 includes a waterproof box 101 and a waterproof cover 103. An annular groove 106 is formed at the upper end of the waterproof box 101, and an annular sealing strip 108 is interference-fitted into the interior of the annular groove 106. An annular connecting block 111 is installed at the bottom end of the waterproof cover 103. The annular connecting block 111 is inserted into the annular groove 106, and the bottom end of the annular connecting block 111 is connected to the upper end of the annular sealing strip 108. The waterproof box 101 has a first wiring port on one side and several second wiring ports on the other side. The wiring mechanism 2 includes several wiring heads 201. One end of each wiring head 201 is inserted into the first and second wiring ports respectively. One end of each wiring head 201 is fitted with a limiting ring 203. The end of each wiring head 201 located inside the waterproof box 101 is threaded with a fastening head 205. The other end of each wiring head 201 is threaded with a locking cap 202.

[0033] As an embodiment of this utility model, the inner side of the limiting ring 203 is further provided with a first sealing gasket, one side of which abuts against the outer side of the waterproof box 101. The first sealing gasket on the inner side of the limiting ring 203 abuts tightly against the outer side of the waterproof box 101, which can fill the gap between the connector 201 and the waterproof box 101, prevent water from seeping in from the outside of the connector, enhance the sealing of the connector, and improve the overall waterproof effect in conjunction with other sealing structures.

[0034] As an embodiment of this utility model, a second sealing gasket is further embedded on one side of the fastening head 205. One side of the second sealing gasket abuts against the inner side of the waterproof box 101. The second sealing gasket on one side of the fastening head 205 abuts against the inner side of the waterproof box 101, further sealing the connection gap between the connector 201 and the connector port from the inside of the waterproof box 101, forming a double seal with the first sealing gasket, effectively preventing moisture from entering the interior of the waterproof box 101 and improving the reliability of the seal.

[0035] As an embodiment of this utility model, a locking sleeve 207 is installed on one end of each connector 201. The locking sleeve 207 is provided with a sealing sleeve 204 that matches its inner wall. The locking sleeve 207 and the sealing sleeve 204 at one end of the connector 201 cooperate with each other. The sealing sleeve 204 can tightly wrap the cable that passes through, fill the gap between the cable and the connector 201, prevent moisture from seeping into the waterproof box 101 along the surface of the cable, and enhance the sealing performance of the cable connection part.

[0036] As an embodiment of this utility model, the locking cap 202 is further provided with a locking groove 206 adapted to the outside of the locking sleeve 207. The inner side of the locking groove 206 abuts against the outer side of the locking sleeve 207, and the locking groove 206 of the locking cap 202 abuts against the outer side of the locking sleeve 207. When the locking cap 202 is tightened, the locking sleeve 207 can be squeezed, so that the sealing sleeve 204 further shrinks and fits tightly against the cable, thereby strengthening the sealing effect and fixing the position of the cable to prevent the seal from failing due to cable shaking.

[0037] As an embodiment of this utility model, a pair of fixing blocks 102 are installed on both sides of the upper end of the waterproof box 101, and a pair of connecting blocks 104 are installed on both ends of the waterproof cover 103. A screw 105 is movably inserted at the center of each connecting block 104. The bottom end of the screw 105 is threadedly connected to the fixing block 102. The connecting block 104 of the waterproof cover 103 is threadedly connected to the fixing block 102 of the waterproof box 101 through the screw 105. This can firmly fix the waterproof cover 103 on the waterproof box, ensuring that the annular mating block 111 tightly squeezes the annular sealing strip 108, maintaining the sealing performance, and is suitable for long-term fixed use of the waterproof box 101.

[0038] As an embodiment of this utility model, the waterproof box 101 is further provided with buckles 110 at both ends, and the waterproof cover 103 is provided with retaining rings 109 at both ends. The retaining rings 109 are engaged with the buckles 110. The buckles 110 of the waterproof box 101 are engaged with the retaining rings 109 of the waterproof cover 103, which can help fix the waterproof cover 103. This is suitable for situations where the waterproof box 101 and the waterproof cover 103 need to be opened and closed repeatedly, and avoids damage to the fixing block 102 caused by repeatedly tightening and loosening the screws 105.

[0039] As an embodiment of this utility model, a connector 107 is further fixedly installed at the bottom of the waterproof box 101. The connector 107 inside the waterproof box 101 facilitates the termination and fixing of the photovoltaic panel connection cables, making the cable connection standardized and orderly, avoiding poor contact or short circuit caused by messy wiring, and providing a stable connection foundation for the cables, thereby improving the operational reliability of the photovoltaic system.

[0040] As an embodiment of this utility model, the annular sealing strip 108, the first sealing gasket, the second sealing gasket, and the sealing sleeve 204 are all made of perfluororubber. By setting the annular sealing strip 108, the first sealing gasket, the second sealing gasket, and the sealing sleeve 204 to be made of perfluororubber, the sealing effect is improved, and the waterproof effect of the waterproof box 101 is further improved.

[0041] Specifically, the working principle of this photovoltaic panel connection cable sealing waterproof box is as follows: In use, first, pass the photovoltaic panel connection cable through the locking cap 202, locking sleeve 207, and sealing sleeve 204 of the connector 201. Tighten the locking cap 202 so that the locking groove 206 squeezes the locking sleeve 207, allowing the sealing sleeve 204 to tightly wrap the cable. Then, insert the connector 201 into the first and second connector ports of the waterproof box 101, so that the first sealing gasket of the limiting ring 203 fits against the outside of the waterproof box 101. Finally, tighten the fastening head 205 from the inside, allowing the first sealing gasket of the limiting ring 203 to fit against the outside of the waterproof box 101. Two sealing gaskets press tightly against the inside of the waterproof box 101 to form a double seal. After the cable is connected and fixed inside the waterproof box 101 via the connector 107, the waterproof cover 103 is closed, allowing the annular mating block 111 to be inserted into the annular groove 106 to compress the annular sealing strip 108. The connecting block 104 and the fixing block 102 are locked together by screws 105, while the retaining ring 109 and the buckle 110 engage to assist in fixing. The sealing components made of perfluororubber enhance weather resistance, and the entire structure prevents moisture from seeping in through multiple sealing layers, achieving waterproof protection for the cable connection.

[0042] It should be noted that all standard parts used in this application can be purchased from the market, and 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. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A photovoltaic panel connection cable sealing and waterproof box, characterized in that, The device includes a main body (1) and a wiring mechanism (2). The main body (1) includes a waterproof box (101) and a waterproof cover (103). The upper end of the waterproof box (101) is provided with an annular groove (106). An annular sealing strip (108) is interference-fitted into the interior of the annular groove (106). An annular mating block (111) is installed at the bottom end of the waterproof cover (103). The annular mating block (111) is inserted into the annular groove (106), and the bottom end of the annular mating block (111) abuts against the upper end face of the annular sealing strip (108). The waterproof box (101)... The waterproof box (101) has a first wiring port on one side and several second wiring ports on the other side. The wiring mechanism (2) includes several wiring heads (201). One end of each wiring head (201) is inserted into the first wiring port and the second wiring port respectively. One end of each wiring head (201) is fitted with a limiting ring (203). One end of each wiring head (201) inside the waterproof box (101) is threaded with a fastening head (205). The other end of each wiring head (201) is threaded with a locking cap (202).

2. A waterproof box for sealing a PV panel connection cable according to claim 1, characterized in that, The inner side of each limiting ring (203) is fitted with a first sealing gasket, and one side of each first sealing gasket abuts against the outer side of the waterproof box (101).

3. A waterproof box for sealing a PV panel connecting cable according to claim 1, characterized in that, Each of the fastening heads (205) has a second sealing gasket embedded on one side, and one side of the second sealing gasket abuts against the inside of the waterproof box (101).

4. A waterproof box for sealing a PV panel connecting cable according to claim 1, characterized in that, Each of the connectors (201) is equipped with a locking sleeve (207) at one end, and each locking sleeve (207) is provided with a sealing sleeve (204) that matches its inner wall.

5. A waterproof sealing box for photovoltaic panel connecting cables according to claim 4, characterized in that, The locking cap (202) has a locking groove (206) inside that is adapted to the outside of the locking sleeve (207), and the inside of the locking groove (206) abuts against the outside of the locking sleeve (207).

6. A waterproof box for sealing a PV panel connection cable according to claim 1, characterized in that, A pair of fixing blocks (102) are installed on both sides of the upper end of the waterproof box (101), and a pair of connecting blocks (104) are installed on both ends of the waterproof cover (103). A screw (105) is movably inserted at the center of each connecting block (104), and the bottom end of the screw (105) is threadedly connected to the fixing block (102).

7. A waterproof box for sealing a PV panel connecting cable according to claim 1, characterized in that, Both ends of the waterproof box (101) are equipped with buckles (110), and both ends of the waterproof cover (103) are equipped with retaining rings (109), which are engaged with the buckles (110).

8. A waterproof box for sealing a PV panel connecting cable according to claim 1, characterized in that, A connector (107) is fixedly installed at the bottom of the interior of the waterproof box (101).

9. A waterproof sealing box for photovoltaic panel connecting cables according to claim 1, characterized in that, The annular sealing strip (108), the first sealing gasket, the second sealing gasket, and the sealing sleeve (204) are all made of perfluororubber.

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