Satellite solar photovoltaic panel cable connection structure

Abstract

The application relates to the technical field of photovoltaic connecting cables, in particular to a satellite solar photovoltaic cell panel cable connecting structure. The satellite solar photovoltaic cell panel cable connecting structure comprises a cable module, the cable module comprises a main cable, a storage module, an intermediate cable, a butt joint cable and an adjusting module, one end of the main cable is provided with a connecting terminal, the other end is connected with the intermediate cable, the intermediate cable is placed in the storage module in a corrugated and bent mode, one end of the intermediate cable away from the main cable is connected with the butt joint cable, the butt joint cable is in self-locking sliding fit with the adjusting module, the intermediate cable in the storage module is released or retracted by pulling the butt joint cable in the cable module, the required connecting length is provided, on the other side of the butt joint cable, the change of the position can be locked by the self-locking action provided by the adjusting module after the adjusting is completed, the overall length at this time is kept, compared with the cable connecting mode of only providing the variable length, the addition of the self-locking action can effectively prevent the winding and accumulation of the excess cable.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic connection cable technology, and in particular to a cable connection structure for satellite solar photovoltaic panels. Background Technology

[0002] Photovoltaic solar panels are devices used to convert solar energy into electrical energy. Their basic working principle is to utilize the photovoltaic effect to directly convert solar radiation energy into direct current (DC), which can then be used by loads or stored in batteries. The electrical energy is then transmitted to other electrical devices via cables connected to the photovoltaic solar panels.

[0003] When photovoltaic solar panels are actually used, their placement spacing needs to be adjusted for the following reasons: First, to ensure that each panel receives as much sunlight as possible; second, because solar panels generate heat during operation, proper placement spacing facilitates ventilation and reduces the surface temperature of the panels; third, considering seasonal changes, the angle of sunlight will change, and the placement spacing of solar panels needs to be adjusted according to the season to adapt to this change; fourth, the actual installation terrain is varied, and to ensure stable installation results, the placement spacing of solar panels needs to be adjusted.

[0004] Existing satellite solar photovoltaic panel cable connection structures often only provide fixed-spacing connections, which cannot adapt to the changes in the spacing of the photovoltaic panels. In addition, in actual operation, cables of appropriate length need to be selected, and they need to be replaced frequently as the spacing of the panels is adjusted. Since satellites mostly operate in space and within the atmosphere, this makes operation very troublesome. Summary of the Invention

[0005] This invention provides a cable connection structure for satellite solar photovoltaic panels, allowing the cable portion to be synchronously and adaptively adjusted when the installation spacing between different modules of the satellite photovoltaic panel is changed, thereby solving the problems mentioned in the background art.

[0006] Satellite solar photovoltaic panel cable connection structures often only provide fixed-spacing connections. Due to limitations of the satellite's operating environment, it is impossible to replace the cables with appropriate lengths when the spacing between the photovoltaic panels changes.

[0007] To achieve the above objectives, the present invention provides a satellite solar photovoltaic panel cable connection structure, including a cable module. The cable module includes a main cable, a storage module, an intermediate cable, a docking cable, and an adjustment module. One end of the main cable is equipped with a connection terminal, and the other end is connected to the intermediate cable. The intermediate cable is placed in the storage module in a corrugated shape. The end of the intermediate cable away from the main cable is connected to the docking cable. The adjustment module drives the docking cable to slide and extend.

[0008] An anti-interference module is symmetrically mounted on the adjustment module and outputs an outward jet of air. When the adjustment module drives the docking cable to slide and extend, the jet of air is driven to rotate in a circular trajectory at the end of the adjustment module.

[0009] As a further embodiment of the present invention, the storage module includes a box, a cover and limiting posts. The cover is detachably installed on the top of the box, and several limiting posts are fixed on the box. The intermediate cable is placed in the cavity of the box by winding around the limiting posts. The space of the box provides sufficient storage space for the intermediate cable after bending, and the setting of the limiting posts ensures that the intermediate cable maintains a fixed trajectory when entering and leaving the box.

[0010] As a further embodiment of the present invention, the adjustment module includes a connecting box, a connector, a locking groove, a through-hole, a protruding post, an elastic clip, and a locking contact. Both ends of the connecting box are slidably connected to connectors, which are connected to the docking cable. The inner wall of the cavity of the connecting box for the connector to slide is provided with several locking grooves at equal intervals. One side of the connecting box is provided with a through-hole that slides with the docking cable. The connector is a hollow cylindrical shape. A protruding post is fixedly installed on the inner wall of the connector. An elastic clip is sleeved on the protruding post. Locking contacts are symmetrically fixed at the ends of the elastic clips. The locking contacts pass through the connector and engage with the locking groove.

[0011] Based on this, an insulating component is fitted on the side of the connector near the mating cable, which makes it easier for operators to grasp the connector and move it.

[0012] In another technical solution, the main cable includes a conductor, a filling medium, a shielding layer, a water-blocking tape, an inner padding layer, a braided layer, and an outer sheath. There are three sets of conductors arranged in a ring around the center of the main cable. The three sets of conductors are wrapped with a shielding layer. A filling medium is provided between the shielding layer and the conductors. The shielding layer is covered with a water-blocking tape, an inner padding layer, a braided layer, and an outer sheath in sequence from the outer edge of the main cable.

[0013] Based on this, the braided layer is made of soft steel wire rope, and the mesh is diamond-shaped.

[0014] Based on this, the outer sheath, inner padding layer and water-blocking wrapping tape are respectively made of wear-resistant rubber, elastic rubber and water-blocking rubber.

[0015] As a further embodiment of the present invention, the anti-interference module includes an electric push rod, a connecting frame, a rack, a rotating shaft, a gear, and a jet nozzle. The electric push rod is fixedly installed on the top of the connecting box, and the connecting frame is fixedly installed on the output end of the electric push rod. The connecting frame is fixedly connected to the connector. A rack is fixedly installed on one side of the connecting frame. A rotating shaft is rotatably installed on the side wall of the connecting box. A gear that meshes with the rack is fixedly installed on the rotating shaft. Jet nozzles are fixedly installed at both the upper and lower ends of the rotating shaft.

[0016] This technical solution shields the main cable from other electromagnetic and signal interference when it is used on satellite photovoltaic panels through a shielding layer. At the same time, the outer sheath, inner padding layer, and water-blocking tape can protect the main cable and prevent the main cable from being affected by temperature, humidity, and ultraviolet radiation in the harsh space environment.

[0017] Compared with the prior art, the present invention provides a satellite solar photovoltaic panel cable connection structure, which has the following features:

[0018] Beneficial effects:

[0019] This invention provides the required connection length by pulling and connecting cables in the cable module and releasing or retracting the intermediate cable within the storage module. On the other side of the connecting cable, the position change is achieved by the self-locking function provided by the adjustment module, which locks the cable after adjustment to maintain the overall length. Through the linkage design of the cable module and the storage module, the intermediate cable can be released and retracted simultaneously when adjusting the spacing of the photovoltaic panel modules, achieving adaptive matching of cable length.

[0020] In addition, in the adjustment module, when the connector moves relative to the connection box to connect the cable, the connector slides relative to the connection box. The protrusion is first blocked by the locking groove interval and pressed inward into the connector. The elastic clip stores force. When the connector stops sliding (no longer pushed by external force), the elastic clip releases and presses the protrusion into the locking groove to form a sliding lock. This makes it easier to operate when the length of the cable connection changes, and automatically locks the cable position after the length is adjusted. This effectively solves the problem of stacking and tangling that exists in traditional retractable cables and ensures heat dissipation space. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection status between a satellite solar photovoltaic panel cable connection structure and a single photovoltaic panel module proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the connection structure of a satellite solar photovoltaic panel cable between photovoltaic panel modules proposed in this invention;

[0023] Figure 3This is a schematic diagram of the overall structure of a satellite solar photovoltaic panel cable connection structure proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the unfolded structure of the storage module and adjustment module in the cable connection structure of a satellite solar photovoltaic panel proposed in this invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the storage module in the cable connection structure of a satellite solar photovoltaic panel proposed in this invention;

[0026] Figure 6 This is an exploded view of the adjustment module in the cable connection structure of a satellite solar photovoltaic panel proposed in this invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the connecting box in a satellite solar photovoltaic panel cable connection structure proposed in this invention;

[0028] Figure 8 This is a schematic diagram of the end face cross-section of the main cable in a satellite solar photovoltaic panel cable connection structure proposed in this invention;

[0029] Figure 9 This is a schematic diagram of the anti-interference module structure in the cable connection structure of a satellite solar photovoltaic panel proposed in this invention.

[0030] In the diagram: 1. Cable module; 10. Main cable; 101. Conductor; 102. Filling medium; 103. Shielding layer; 104. Water-blocking tape; 105. Inner padding layer; 106. Braided layer; 107. Outer sheath; 11. Storage module; 110. Box; 111. Cover; 112. Limiting post; 12. Intermediate cable; 13. Connecting cable; 14. Adjustment module; 141. Connection box; 142. Connector; 143. Locking slot; 144. Through port; 145. Protruding post; 146. Elastic clip; 147. Locking contact; 15. Anti-interference module; 151. Electric push rod; 152. Connecting frame; 153. Rack; 154. Shaft; 155. Gear; 156. Jet nozzle; 2. Connection terminal; 3. Photovoltaic panel module; 4. Bracket. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 To address the issue that existing connection cables are difficult to adapt to the need for adjusting the spacing of different photovoltaic solar panel components during use, this invention discloses a satellite solar photovoltaic panel cable connection structure. An electrical connection is established between the connection terminal 2 and the photovoltaic panel module 3 placed on a bracket 4. The structure includes a cable module 1, comprising a main cable 10, a storage module 11, an intermediate cable 12, a docking cable 13, and an adjustment module 14. One end of the main cable 10 is equipped with the connection terminal 2, and the other end is connected to the intermediate cable 12. The intermediate cable 12 is corrugated and placed in the storage module 11. The end of the intermediate cable 12 away from the main cable 10 is connected to the docking cable 13. The adjustment module 14 drives the docking cable 13 to slide and extend.

[0033] The anti-interference module 15 is symmetrically mounted on the adjustment module 14 and outputs jet airflow from the inside out. When the adjustment module 14 drives the docking cable 13 to slide and extend, the jet airflow at the end of the adjustment module 14 is driven to rotate in a circular trajectory.

[0034] like Figure 1 As shown, in its initial state, an independent photovoltaic unit consists of a support frame 4, a photovoltaic panel module 3, a connection terminal 2, and a cable module 1. When connecting several independent photovoltaic units into a unified photovoltaic device, it is only necessary to connect the cable modules 1 to form a connection as shown in the diagram. Figure 2 The state shown is then repeated sequentially (each photovoltaic panel module 3 is equipped with multiple connection terminals 2 for series or parallel operation, not shown in the figure) to obtain the overall photovoltaic device.

[0035] When assembling the photovoltaic device, the cable module 1 can adapt synchronously when the installation spacing of the photovoltaic panel module 3 is changed.

[0036] Specifically, in cable module 1, by pulling the connecting cable 13, the intermediate cable 12 in the storage module 11 is released or retracted to provide the required connection length. On the other side of the connecting cable 13, the position change is locked by the self-locking function provided by the adjustment module 14 after the adjustment is completed, maintaining the overall length at this time. Compared with the cable connection method that only provides variable length, the addition of the self-locking function can effectively prevent excess cable from tangling and piling up, causing heat dissipation problems.

[0037] like Figure 4 and Figure 5As shown, the storage module 11 includes a box 110, a cover 111, and limiting posts 112. The cover 111 is detachably installed on the top of the box 110. Several limiting posts 112 are fixed on the box 110. The intermediate cable 12 is placed in the cavity of the box 110 by winding through the limiting posts 112. The space of the box 110 provides sufficient storage space for the intermediate cable 12 after bending. The setting of the limiting posts 112 ensures that the intermediate cable 12 can maintain a fixed trajectory when entering and leaving the box 110.

[0038] like Figure 6 and Figure 7 As shown, the adjustment module 14 includes a connecting box 141, a connector 142, a locking groove 143, a through port 144, a protruding post 145, an elastic clip 146, and a locking contact 147. Both ends of the connecting box 141 are slidably connected to the connector 142, which is connected to the docking cable 13. The inner wall of the cavity of the connecting box 141 for the connector 142 to slide is provided with several locking grooves 143 at equal intervals. One side of the connecting box 141 is provided with a through port 144 that slides with the docking cable 13. The connector 142 is a hollow cylindrical shape. A protruding post 145 is fixedly installed on the inner wall of the connector 142. An elastic clip 146 is sleeved on the protruding post 145. A locking contact 147 is symmetrically fixed at the end of the elastic clip 146. The locking contact 147 passes through the connector 142 and engages with the locking groove 143.

[0039] The principle of the adjustment module 14 to achieve self-locking of the moving docking cable 13 is as follows: when the docking cable 13 moves relative to the connection box 141, the connector 142 slides relative to the connection box 141. At this time, the protrusion 145 is first blocked by the locking groove 143 at intervals and pressed inward into the connector 142. The elastic clip 146 stores force. When the sliding of the connector 142 stops (no longer pushed by external force), the elastic clip 146 is released and presses the protrusion 145 into the locking groove 143 to form a sliding lock.

[0040] Furthermore, an insulating component is provided on the side of the connector 142 near the docking cable 13, which makes it easier for the operator to grasp the connector 142 and move it.

[0041] like Figure 8As shown, the main cable 10 includes a conductor 101, a filling medium 102, a shielding layer 103, a water-blocking wrapping tape 104, an inner padding layer 105, a braided layer 106, and an outer sheath 107. There are three groups of conductors 101 arranged in a ring around the center of the main cable 10. The three groups of conductors 101 are wrapped with a shielding layer 103. A filling medium 102 is provided between the shielding layer 103 and the conductors 101. The water-blocking wrapping tape 104, the inner padding layer 105, the braided layer 106, and the outer sheath 107 are sequentially wrapped around the shielding layer 103 to the outer edge of the main cable 10.

[0042] The braided layer 106 is made of soft steel wire rope, and the mesh is diamond-shaped.

[0043] The outer sheath 107, inner padding layer 105, and water-blocking wrapping tape 104 are respectively made of wear-resistant rubber, elastic rubber, and water-blocking rubber.

[0044] It should be clarified that, since the operating environment of the main cable 10 is related to the satellite, it is greatly affected by ultraviolet radiation, temperature and humidity in the atmosphere and space environment. At the same time, inside the satellite, the cable is also affected by the micro-radiation and signals generated by various instruments and other cables. The shielding layer 103 shields the main cable 10 from other micro-radiation, electromagnetic and signal effects when it is used on the satellite photovoltaic panel. Meanwhile, the outer sheath 107, inner padding layer 105 and water-blocking tape 104 can provide protection for the main cable 10, preventing the main cable 10 from being affected by temperature, humidity and ultraviolet radiation in the harsh space environment.

[0045] like Figure 9 As shown, the anti-interference module 15 includes an electric push rod 151, a connecting frame 152, a rack 153, a rotating shaft 154, a gear 155, and a jet nozzle 156. The electric push rod 151 is fixedly installed on the top of the connecting box 141. The connecting frame 152 is fixedly installed on the output end of the electric push rod 151. The connecting frame 152 is fixedly connected to the connector 142. The rack 153 is fixedly installed on one side of the connecting frame 152. The rotating shaft 154 is rotatably installed on the side wall of the connecting box 141. The gear 155 that cooperates with the rack 153 is fixedly installed on the rotating shaft 154. Jet nozzles 156 are fixedly installed at both the upper and lower ends of the rotating shaft 154.

[0046] When the connector 142 is moved relative to the connecting box 141 by the electric push rod 151, the connecting frame 152 is moved synchronously, thereby driving the rack 153 to move. Since the rack 153 meshes with the gear 155, the movement of the rack 153 will drive the gear 155 to rotate, maintaining the jet output of the jet head 156. The gear 155 will drive the rotating shaft 154 to rotate, so that the jet air will continue to rotate in a circular trajectory. In this way, an airflow barrier is established at the contact point between the connector 142 and the connecting box 141. Under the action of rotation, the airflow barrier can expand its angle of action to achieve full coverage. In this way, external dust, particles and other impurities are isolated outside the sliding area of ​​the connector 142 by the airflow and will not adhere to the connector 142. Firstly, it can ensure that the connector 142 maintains a smooth sliding action when the overall length of the cable is adjusted, and secondly, it can avoid interference with the stability of the electrical connection of the connector 142.

[0047] Working principle: In its initial state, an independent photovoltaic unit consists of a support frame 4, a photovoltaic panel module 3, a connection terminal 2, and a cable module 1. When connecting several independent photovoltaic units into a whole photovoltaic device, it is only necessary to connect the cable module 1 to form a connection. Figure 2 The state shown is then repeated sequentially (each photovoltaic panel module 3 is equipped with multiple connection terminals 2 for series or parallel operation, not shown in the figure) to obtain the overall photovoltaic device.

[0048] When assembling the photovoltaic device, the cable module 1 can adapt synchronously when the installation spacing of the photovoltaic panel module 3 is changed. Specifically, the cable module 1 releases or retracts the intermediate cable 12 in the storage module 11 by pulling the connecting cable 13 to provide the required connection length. On the other side of the connecting cable 13, the position change is locked by the self-locking action provided by the adjustment module 14 after the adjustment is completed, maintaining the overall length at this time.

[0049] In the adjustment module 14, when the docking cable 13 moves relative to the connection box 141, the connector 142 slides relative to the connection box 141. At this time, the protrusion 145 is first blocked by the locking groove 143 and pressed inward into the connector 142. The elastic clip 146 stores force. When the sliding of the connector 142 stops (no longer pushed by external force), the elastic clip 146 is released, pressing the protrusion 145 into the locking groove 143 to form a sliding lock.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable connection structure for a satellite solar photovoltaic panel, wherein an electrical connection is established between a connection terminal (2) and a photovoltaic panel module (3), characterized in that, include: The cable module (1) includes a main cable (10) with a connection terminal (2) installed at one end and an intermediate cable (12) connected to the other end of the main cable (10). The intermediate cable (12) is placed in a storage module (11) with a corrugated bend. The cable module (1) also includes an adjustment module (14), wherein the end of the intermediate cable (12) away from the main cable (10) is connected to the docking cable (13), and the adjustment module (14) drives the docking cable (13) to slide and extend; An anti-interference module (15) is symmetrically installed on the adjustment module (14) and outputs jet airflow from the inside out. When the adjustment module (14) drives the docking cable (13) to slide and extend, the jet airflow at the end of the adjustment module (14) is driven to rotate in a circular trajectory. The adjustment module (14) includes a connecting box (141), a connector (142), a locking groove (143), a through port (144), a protrusion (145), an elastic clip (146), and a locking contact (147). Both ends of the connecting box (141) are slidably connected to connectors (142), which are connected to the docking cable (13). The inner wall of the connecting box (141) for the sliding of the connectors (142) is provided with several locking grooves (143) at equal intervals. The box (141) has an opening (144) on one side for sliding cooperation with the docking cable (13). The connector (142) is a hollow cylindrical shape. A protruding post (145) is fixedly installed on the inner wall of the connector (142). An elastic clip (146) is sleeved on the protruding post (145). A locking contact (147) is symmetrically fixed at the end of the elastic clip (146). The locking contact (147) passes through the connector (142) and cooperates with the locking groove (143). The anti-interference module (15) includes an electric push rod (151), a connecting frame (152), a rack (153), a rotating shaft (154), a gear (155), and a jet nozzle (156). The electric push rod (151) is fixedly installed on the top of the connecting box (141). The connecting frame (152) is fixedly installed on the output end of the electric push rod (151). The connecting frame (152) is fixedly connected to the connector (142). The rack (153) is fixedly installed on one side of the connecting frame (152). The rotating shaft (154) is rotatably installed on the side wall of the connecting box (141). The gear (155) that meshes with the rack (153) is fixedly installed on the rotating shaft (154). The jet nozzle (156) is fixedly installed at both the upper and lower ends of the rotating shaft (154).

2. The satellite solar photovoltaic panel cable connection structure according to claim 1, characterized in that, The storage module (11) includes a box (110), a cover (111) and a limiting post (112). The top of the box (110) is detachably fitted with a cover (111). The box (110) is fixed with several limiting posts (112). The intermediate cable (12) is wound around the limiting post (112) and placed in the cavity of the box (110). The space of the box (110) provides sufficient storage space for the intermediate cable (12) after bending. The setting of the limiting post (112) ensures that the intermediate cable (12) can maintain a fixed trajectory when entering and leaving the box (110).

3. The satellite solar photovoltaic panel cable connection structure according to claim 2, characterized in that, An insulating component is fitted on the side of the connector (142) near the docking cable (13), which makes it easier for the operator to grasp the connector (142) and move it.

4. The satellite solar photovoltaic panel cable connection structure according to claim 3, characterized in that, The main cable (10) includes a conductor (101), a filling medium (102), a shielding layer (103), a water-blocking wrapping tape (104), an inner padding layer (105), a braided layer (106), and an outer sheath (107). There are three groups of conductors (101) arranged in a ring around the center of the main cable (10). The three groups of conductors (101) are wrapped with a shielding layer (103). A filling medium (102) is provided between the shielding layer (103) and the conductors (101). The shielding layer (103) to the outer edge of the main cable (10) are sequentially covered with a water-blocking wrapping tape (104), an inner padding layer (105), a braided layer (106), and an outer sheath (107).

5. The satellite solar photovoltaic panel cable connection structure according to claim 4, characterized in that, The braided layer (106) is made of soft steel wire rope, and the mesh is diamond-shaped.

6. The satellite solar photovoltaic panel cable connection structure according to claim 5, characterized in that, The outer sheath (107), inner padding layer (105), and water-blocking tape (104) are respectively made of wear-resistant rubber, elastic rubber, and water-blocking rubber.

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