Combined connector assembly for photovoltaic cable

Abstract

The invention discloses a combined type connector assembly for a photovoltaic cable, and relates to the technical field of photovoltaic cable construction, in particular to the combined type connector assembly for the photovoltaic cable, which comprises a female head terminal and a male head terminal, and is characterized in that a female head protection shell and a male head protection shell are respectively sleeved outside the female head terminal and the male head terminal; the female head protection shell and the male head protection shell are each composed of a lower arc-shaped piece and an upper arc-shaped piece. According to the combined type connector assembly for the photovoltaic cable, the lower arc-shaped piece and the upper arc-shaped piece which are of an opening and closing type structure enable wiring to be very easy, the inner layer material has good conductivity, the outer layer material is light in weight and has very high strength and rigidity, the anti-pressure capability of the combined type connector assembly can be effectively enhanced, the internal copper metal layer and the cable connecting part are protected, and the service life of the combined type connector assembly is prolonged. The female head terminal and the male head terminal are in clamping connection through the terminal quick connector and the quick connector limiting block, quick connection and disassembly can be achieved, and the detachable structure of the connecting disc and the cable fixing piece enables maintenance work to be more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cable construction, and in particular to a combined connector assembly for photovoltaic cables. Background Art

[0002] Photovoltaic cable is a special cable used in solar photovoltaic power generation systems, usually composed of conductors, insulation layers, sheaths, etc. The conductors are generally made of high-purity copper or aluminum to ensure good conductivity. During the construction of solar photovoltaic power generation systems, a series of operations such as laying, connecting, fixing photovoltaic cables and installing related supporting facilities are carried out to ensure the stable operation and efficient power generation of photovoltaic power generation systems.

[0003] The combined connector assembly for photovoltaic cables is a device used to connect photovoltaic cables in solar photovoltaic power generation systems. It consists of a contact, an insulating shell, and a seal. Usually, two contacts are connected to the two ends of the photovoltaic cable to achieve a quick connection between the cables.

[0004] However, at present, 1. Most of the current photovoltaic cable combined connectors adopt a quick-release structure, but after the cable head is stripped, most of them are plugged into the contact piece, that is, the copper core used for conduction, and the structure of this copper core is mostly an integrated structure. Because the specifications of the copper core are matched with the cable specifications, this not only causes inconvenience in wire feeding, but also cannot ensure whether the cable end is completely in contact with the end of the contact piece; 2. After the contact piece is effectively plugged and installed with the cable, in order to fix the cable and the contact piece, the tail end of the contact piece is usually clamped with the help of a clamp, thereby effectively fixing the cable through the metal piece at the tail end, but the cable fails during use, and the deformed tail end caused by the pressure of the clamp is difficult to disassemble, making disassembly difficult. If tools are forced to be used, the main structure of the entire cable may be damaged, or the entire connector may need to be replaced because the deformed tail end cannot be smoothly disassembled; 3. At the same time, most of the contact pieces currently used to fix the cable are made of copper, but they have poor pressure resistance and may be deformed, and cannot meet people's usage needs well. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a combined connector assembly for photovoltaic cables, which solves the problems mentioned in the above background technology, such as the inconvenience of wire feeding, the difficulty in disassembly of the deformed tail end due to the pressure of the clamp, the need to replace the entire connector, and the contact parts are mostly made of copper, but their pressure resistance is poor and deformation may occur.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a combined connector assembly for photovoltaic cables, comprising a female terminal and a male terminal, the female terminal and the male terminal are respectively sleeved with a female protective shell and a male protective shell, the female protective shell and the male protective shell are both composed of a lower arc-shaped member and an upper arc-shaped member, the lower arc-shaped member and the upper arc-shaped member are both snap-connected by fasteners, both ends of one side of the outer wall of the lower arc-shaped member are glued and connected with terminal quick connectors, the other side of the outer wall of the lower arc-shaped member is snap-connected with a connecting disk, the connecting disk is snap-connected with a cable fixing plate, the female terminal and the male terminal A slot-type docking end groove and a slot-type docking end head are respectively installed at the opposite ends of the sub-terminals, and the slot-type docking end heads are plugged and connected to the slot-type docking end grooves. The slot-type docking end grooves and the slot-type docking end heads are respectively integrally connected with one end of the lower arc-shaped parts arranged in the female terminal and the male terminal. The ends on the opposite sides of the female protective shell and the male protective shell are respectively rotatably connected with the A assembly block and the B assembly block. The outer wall of the A assembly block is threadedly connected to the inner wall of the B assembly block. Both ends of the outer walls of the A assembly block and the B assembly block are glued and connected with external covers, and the other ends of the female protective shell and the male protective shell are threadedly connected with dust covers.

[0007] The fastener includes a tenon and a tenon groove, the tenons are glued to the upper arc-shaped part, the tenon groove is located at the place where the surface of the lower arc-shaped part and the upper arc-shaped part are tightly fitted, and a tenon stopper is installed inside the tenon groove, one end of the tenon stopper is glued to the inner wall of the tenon groove through a spring, and the other end of the tenon stopper is glued to a shaft rod, and one end of the shaft rod passes through the tenon groove and extends to the outside of the tenon groove.

[0008] The top wall and the bottom wall of the external cover are both slidably connected to the limit sliders, the limit sliders are connected by a quick joint limit block, the outer wall of the external cover is plug-connected with a sealing gasket, and the sealing gasket and the quick joint limit block are glued together by a spring.

[0009] Optionally, the lower arc-shaped member is provided with a sliding groove for sliding connection with the upper arc-shaped member, and a plurality of springs integrally connected to one end of the upper arc-shaped member are glued inside the sliding groove, and the upper arc-shaped member slides and retracts in the sliding groove of the lower arc-shaped member through the springs.

[0010] Optionally, the sliding groove on the side adjacent to the slot-type docking end groove and the slot-type docking end head of the lower arc-shaped member is a through-type, and the sliding groove on the side adjacent to the connecting plate of the lower arc-shaped member is a non-through-type, and one end of the upper arc-shaped member slides correspondingly in the sliding grooves corresponding to the surfaces of the slot-type docking end groove and the slot-type docking end head, and the other end of the upper arc-shaped member is tightly fitted and connected to the surfaces of the connecting plates relatively set in the female terminal and the male terminal.

[0011] Optionally, the lower arc-shaped member and the upper arc-shaped member are both composed of a double-layer structure of inner copper metal and outer carbon fiber composite material, and the outer layers of the lower arc-shaped member and the upper arc-shaped member are provided with a grid-shaped heat dissipation hole structure, and the lower arc-shaped member and the upper arc-shaped member are connected by tenon and mortise.

[0012] Optionally, an axle rod is provided at the axis center of the tenon, and a semicircular through hole is penetrated by the tenon stopper, and the specification of the through hole is half of the maximum diameter specification of the tenon surface, and the tenon stopper slides and retracts inside the tenon groove through a spring, and the bottom of the tenon stopper is fitted and connected to the top of the maximum diameter specification of the tenon surface, and the tenon is clamped in the inside of the tenon groove through the tenon stopper.

[0013] Optionally, the terminal quick connector and the quick connector limit block are both in a regular trapezoidal shape, and the side of the terminal quick connector and the quick connector limit block that fit together are in a tangent inclined structure, and one end of the external cover is respectively connected to the two ends corresponding to the A assembly block and the B assembly block in which it is located. At the same time, the quick connector limit block forms an elastic reset structure through the spring between it and the sealing gasket and slides and retracts inside the A assembly block and the B assembly block in which it is located.

[0014] Optionally, the female terminal and the male terminal are respectively engaged with the inside of the female protective shell and the male protective shell through the engagement connection of the terminal quick connector and the quick connector limit block, and the diameter specifications of the male terminal and the male protective shell are smaller than the specifications of the female terminal and the female protective shell, and a temperature sensor module is provided above the inner wall of the female protective shell corresponding to the connection between the female terminal and the male terminal.

[0015] Optionally, a through hole is provided through the axis of the dust cover, and an upper gasket and a lower gasket are respectively installed at the notches in the through hole, and the upper gasket and the lower gasket are both composed of a plurality of rubber blocks with a fan-shaped structure. At the same time, springs whose number is the same as the rubber blocks are glued and connected at the notches in the through hole of the dust cover, and the rubber blocks are connected by springs to form an opening and closing structure at the axis of the dust cover.

[0016] Optionally, a connecting disk block is glued to one side of the connecting disk, and a slot for plugging and connecting the connecting disk block is provided on the side of the lower arc-shaped part adjacent to the connecting disk, and a cavity is provided on the inner wall of the lower arc-shaped part corresponding to the slot, and the connecting disk block is plugged into the slot and engaged into the cavity on the inner wall of the slot of the lower arc-shaped part by rotation.

[0017] Optionally, the cable fixing plate is made of a stainless steel sheet and has fixing plate blocks at both ends. The fixing plate blocks are symmetrically distributed along the axis of the cable fixing plate and one end of each is movably connected to the cable fixing plate through a spring. A groove for plugging the fixing plate block is provided on the adjacent side of the connecting disk and the cable fixing plate.

[0018] The present invention provides a combined connector assembly for a photovoltaic cable, which has the following beneficial effects:

[0019] The combined connector assembly for photovoltaic cables has an open-and-closed structure with lower and upper arc parts, which makes wiring extremely easy. Operators do not need to laboriously insert the wires into the fixed-size integrated contact parts. They only need to open the upper arc part, insert the wire end with the insulation stripped, and then automatically close it with the help of the elasticity of the spring. At the same time, the elastic property also provides tight connectivity for the open-and-closed structure, maintains the internal sealing state, and effectively protects the reliability of the wire connection. After laying the cable, the upper arc part is rotated to make the tenon and the mortise butt joint, and a strong connection force is achieved through the cooperation of the tenon stopper and the spring, ensuring that the lower arc part and the upper arc part are tightly connected and will not easily loosen or separate, thereby ensuring the stability of the cable connection. In addition, there is no need to use complex tools or perform cumbersome operations, which greatly improves the installation efficiency and can save a lot of installation time and labor costs in the construction of large-scale photovoltaic power stations.

[0020] The combined connector assembly for photovoltaic cables has a through-type slide groove structure at one end of the lower arc-shaped member, which enables the upper arc-shaped member to slide on the slot-type docking end groove and the slot-type docking end head. The slot-type docking end groove and the slot-type docking end head are made of conductive materials. The plug-in structure formed by them can achieve precise docking of the female terminal and the male terminal, ensure the alignment of the connection parts, greatly reduce the problem of poor connection caused by misalignment, ensure the stable transmission of current in the contact parts, and reduce power loss.

[0021] The combined connector assembly for photovoltaic cables has a structure in which the inner layer material of the lower arc-shaped member and the upper arc-shaped member has good conductivity, and the outer layer material is not only lightweight but also has extremely high strength and rigidity, which can effectively enhance its compressive strength and protect the internal copper metal layer and the cable connection parts. Even in special installation methods such as overhead installation and underground installation, it can improve different degrees of pressure resistance, providing strong guarantee for the stable operation of the photovoltaic system. At the same time, the grid structure on the surface helps to dissipate heat, thereby improving the reliability and durability of the entire contact.

[0022] The combined connector assembly for photovoltaic cables has female terminals and male terminals that are connected by snap-fitting with terminal quick connectors and quick connector limit blocks, which can achieve quick connection and disassembly. The detachable structure of the connection plate and cable fixing plate makes maintenance more convenient, reduces maintenance costs and time, and the temperature sensor module can also monitor temperature changes at the connection in real time, quickly locate the position of the faulty cable, improve maintenance efficiency, and discover potential fault hazards in advance.

[0023] The combined connector assembly for photovoltaic cables has an opening and closing structure of the upper gasket and the lower gasket, which facilitates the penetration of the cable end. After penetration, the gasket can be squeezed and wrapped around the outside of the cable insulation layer through spring reset, effectively blocking dust from entering. The rubber block with a fan-shaped structure has good elasticity and wear resistance, and can withstand multiple cable insertion and extraction operations without damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main structure of the invention;

[0025] Figure 2 It is a schematic diagram of the structure of the female terminal in the invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the lower arc-shaped member in the invention;

[0027] Figure 4 It is a schematic diagram of the fastener structure in the invention;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection plate and the cable fixing plate in the invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the female head protective shell in the invention;

[0030] Figure 7 It is a schematic diagram of the internal structure of the external cover in the invention.

[0031] In the figure: 1. female terminal; 2. male terminal; 3. female protective shell; 4. male protective shell; 5. lower arc-shaped member; 6. upper arc-shaped member; 7. fastener; 701. tenon; 702. tenon groove; 703. tenon stopper; 8. terminal quick connector; 9. connecting plate; 10. cable fixing plate; 11. slot-type docking end groove; 12. slot-type docking terminal; 13. A combination block; 14. B combination block; 15. external cover; 1501. limit slider; 1502. quick connector limit block; 1503. sealing gasket; 16. dust cover; 1601. upper gasket; 1602. lower gasket; 17. connecting plate block; 18. fixing plate block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figures 1 to 7 The present invention provides a technical solution: a combined connector assembly for a photovoltaic cable, comprising a female terminal 1 and a male terminal 2, the female terminal 1 and the male terminal 2 are respectively sleeved with a female protective shell 3 and a male protective shell 4, the female protective shell 3 and the male protective shell 4 are both composed of a lower arc-shaped member 5 and an upper arc-shaped member 6, the lower arc-shaped member 5 and the upper arc-shaped member 6 are both snap-connected by a fastener 7, both ends of one side of the outer wall of the lower arc-shaped member 5 are glued and connected with a terminal quick connector 8, the other side of the outer wall of the lower arc-shaped member 5 is snap-connected with a connecting plate 9, the connecting plate 9 is snap-connected with a cable fixing plate 10, and the opposite ends of the female terminal 1 and the male terminal 2 are respectively installed with a plug The slot-type docking end groove 11 and the slot-type docking end head 12, the slot-type docking end head 12 is plugged into the slot-type docking end groove 11, the slot-type docking end groove 11 and the slot-type docking end head 12 are respectively integrally connected with one end of the lower arc-shaped member 5 arranged in the female terminal 1 and the male terminal 2, and the ends on the opposite sides of the female protective shell 3 and the male protective shell 4 are respectively rotatably connected with the A assembly block 13 and the B assembly block 14, the outer wall of the A assembly block 13 is threadedly connected to the inner wall of the B assembly block 14, and both ends of the outer walls of the A assembly block 13 and the B assembly block 14 are glued and connected with an external cover 15, and the other ends of the female protective shell 3 and the male protective shell 4 are threadedly connected with a dust cover 16.

[0036] The fastener 7 includes a tenon 701 and a tenon groove 702. The tenons 701 are glued to the upper arc-shaped member 6. The tenon groove 702 is located at a position where the surface of the lower arc-shaped member 5 and the upper arc-shaped member 6 are tightly fitted. A tenon stopper 703 is installed inside the tenon groove 702. One end of the tenon stopper 703 is glued to the inner wall of the tenon groove 702 through a spring. The other end of the tenon stopper 703 is glued to a shaft rod, and one end of the shaft rod passes through the tenon groove 702 and extends to the outside of the tenon groove 702.

[0037] The top wall and the bottom wall of the external cover 15 are both slidably connected to the limit slider 1501, and the limit sliders 1501 are connected by a quick-connect limit block 1502. The outer wall of the external cover 15 is plug-connected with a sealing gasket 1503, and the sealing gasket 1503 is glued to the quick-connect limit block 1502 by a spring.

[0038] In this embodiment, Figure 2 and Figure 3 As shown, the lower arc-shaped member 5 is provided with a slide groove for sliding connection with the upper arc-shaped member 6, and the inner glue connection of the slide groove is provided with a plurality of springs integrally connected to one end of the upper arc-shaped member 6, and the upper arc-shaped member 6 slides and retracts in the slide groove of the lower arc-shaped member 5 through the spring; compared with the one-piece structure of the contact member currently used for plugging and connecting the wire end with the stripped insulation layer, this structure is embodied by the opening and closing structure of the lower arc-shaped member 5 and the upper arc-shaped member 6. This opening and closing structure makes it unnecessary to insert the wire into the contact member of fixed size as laboriously as in the one-piece structure when wiring. The operator can easily open the upper arc-shaped member 6, put the wire end with the stripped insulation layer into it, and then use the elasticity of the spring to automatically close it, which greatly saves the wiring time, and uses the elastic property to provide tight connectivity for this opening and closing structure, maintain the internal sealing state, and protect the reliability of the wire connection.

[0039] In this embodiment, Figure 2 and Figure 3As shown, the slide groove on the side adjacent to the lower arc-shaped member 5 and the slot-type docking end groove 11 and the slot-type docking terminal head 12 is a through-type, and the slide groove on the side adjacent to the lower arc-shaped member 5 and the connecting plate 9 is a non-through-type, and one end of the upper arc-shaped member 6 slides in the slide grooves correspondingly arranged on the surfaces of the slot-type docking end groove 11 and the slot-type docking terminal head 12, respectively, and at the same time, the other end of the upper arc-shaped member 6 is tightly fitted and connected to the surfaces of the connecting plates 9 relatively arranged in the female terminal 1 and the male terminal 2; the through-type slide groove structure at one end of the lower arc-shaped member 5 is to enable the upper arc-shaped member 6 to slide on the slot-type docking end groove 11 and the slot-type docking terminal head 12 respectively when sliding, thereby ensuring the gap generated under this sliding structure, and at the same time, the slot-type docking end groove 11 and the slot-type docking terminal head 12 are made of conductive material, and the plug-in structure formed by each other realizes the precise docking of the female terminal 1 and the male terminal 2, ensures the alignment of the connection parts, and reduces the problem of poor connection caused by misalignment.

[0040] In this embodiment, Figure 1 and Figure 3 As shown, the lower arc member 5 and the upper arc member 6 are both composed of a double-layer structure of inner copper metal and outer carbon fiber composite material, and the outer layers of the lower arc member 5 and the upper arc member 6 are provided with a grid-like heat dissipation hole structure, and the lower arc member 5 and the upper arc member 6 are plug-in connected by a tenon 701 and a tenon groove 702; the material of the inner layer of the lower arc member 5 and the upper arc member 6 has good conductivity, which can ensure the stable transmission of current in the contact member and reduce power loss. Although the lower arc member 5 and the upper arc member 6 are provided with a protective structure on the outside, they are key components for realizing the electrical connection of the photovoltaic cable. If their pressure resistance is insufficient and they are deformed, it will This leads to poor contact and increased resistance, thus affecting the transmission efficiency and stability of electric energy. Different from the traditional integrated single metal structure, the material of its outer layer is not only lightweight but also has extremely high strength and rigidity, which can effectively enhance the compressive strength of the lower arc-shaped member 5 and the upper arc-shaped member 6, and protect the internal copper metal layer and cable connection parts. The grid structure on its surface helps to dissipate heat and improve the reliability and durability of the entire contact. When it comes to some special installation methods, such as overhead installation and underground installation, this structure can improve different degrees of pressure resistance, thereby providing a strong guarantee for the stable operation of the photovoltaic system.

[0041] In this embodiment, Figure 4As shown, an axle is provided at the axis center of the tenon 701, and a semicircular through hole is penetrated by the tenon stopper 703, and the specification of the through hole is half of the maximum diameter specification of the surface of the tenon 701, and the tenon stopper 703 is slidably extended and retracted in the interior of the tenon groove 702 by a spring, and the bottom of the tenon stopper 703 is closely connected to the top of the maximum diameter specification of the surface of the tenon 701, and the tenon 701 is clamped in the interior of the tenon groove 702 through the tenon stopper 703; after laying the cable, it is only necessary to rotate the upper arc-shaped member 6 so that the tenon 701 on its surface is butted against the tenon groove 702. Before connection, it is only necessary to apply a certain external force to make the tenon stopper 703 pass through The spring is compressed to open the channel for the tenon 701 to connect with the tenon groove 702. When the external force is lost, the tenon stopper 703 is reset. Combined with the structural form of the tenon 701, the tenon stopper 703 fits and resists the top of the tenon 701. This locking method provides a strong connection force, ensuring that the lower arc member 5 and the upper arc member 6 can remain tightly connected under various circumstances and will not easily loosen or separate, thereby ensuring the stability of the cable connection. At the same time, there is no need to use complicated tools or perform cumbersome operations, which greatly improves the installation efficiency. Especially in the construction of large-scale photovoltaic power stations, it can save a lot of installation time and labor costs.

[0042] In this embodiment, Figure 7 As shown, the terminal quick connector 8 and the quick connector limit block 1502 are both in a regular trapezoidal shape, and the side of the terminal quick connector 8 that fits the quick connector limit block 1502 is a tangent inclined structure, and one end of the external cover 15 is respectively connected with the two ends corresponding to the A combination block 13 and the B combination block 14 where it is located, and at the same time, the quick connector limit block 1502 forms an elastic reset structure through the spring between it and the sealing gasket 1503 and slides and retracts inside the A combination block 13 and the B combination block 14 where it is located; the lower arc member 5 and the upper arc member 6 serve as the connection ends of the load-bearing cable line. After the assembly is completed, it is necessary to sleeve the protective structure on the outside, and the terminal quick connector 8 and the structure inside the external cover 15 achieve the purpose of quick clamping. When the female terminal 1 and the male terminal 2 are respectively connected through the corresponding terminal quick connector 8 inside them When plugged into the female head protective shell 3 and the male head protective shell 4, the inclined surface of the terminal quick connector 8 will contact the inclined surface of the quick connector limit block 1502. As the terminal quick connector 8 is continuously pushed in, the tangent surfaces of the two fit together to generate an extrusion force. This extrusion force enables the quick connector limit block 1502 to overcome the resistance of the spring and move to the side close to the sealing gasket 1503 through the limit slider 1501. When the terminal quick connector 8 completely passes through the quick connector limit block 1502, the elastic force of the spring causes the quick connector limit block 1502 to automatically reset, thereby resisting the top of the terminal quick connector 8 and limiting it. After the quick connector limit block 1502 automatically resets, the sealing gasket 1503 will be inserted into the notch of the external cover 15 to achieve a tight fit, effectively preventing water, dust, moisture and other impurities from entering the connection part.

[0043] In this embodiment, Figure 7 As shown, the female terminal 1 and the male terminal 2 are respectively engaged with the inside of the female protective shell 3 and the male protective shell 4 through the engagement connection of the terminal quick connector 8 and the quick connector limit block 1502, and the diameter specifications of the male terminal 2 and the male protective shell 4 are smaller than the specifications of the female terminal 1 and the female protective shell 3, and a temperature sensor module is provided above the inner wall of the female protective shell 3 corresponding to the connection between the female terminal 1 and the male terminal 2; the female terminal 1 and the male terminal 2 are engaged with the terminal quick connector 8 and the quick connector limit block 1502 to achieve quick connection and disassembly, so that the connection between the female terminal 1 and the male terminal 2 becomes extremely fast, which is convenient for installing and maintaining the photovoltaic cable system. When installing the system, it can greatly save time and labor costs. At the same time, the advantage of the location of the temperature sensor module is that it can be connected to the control system with wires after installation, and can monitor the temperature changes at the connection between the female terminal 1 and the male terminal 2 in real time. Because the failure of the cable will cause the temperature of the connection part to rise abnormally, these temperature changes can be captured in time through the temperature sensor module. In the future maintenance process, once the temperature sensor detects abnormal temperature, the position of the cable that may fail can be quickly located, thereby narrowing the scope of troubleshooting and improving maintenance efficiency. On the other hand, this real-time monitoring function also helps to discover potential hidden dangers of failure in advance so that preventive measures can be taken.

[0044] In this embodiment, Figure 1 and Figure 6 As shown, a through hole is penetrated at the axis of the dust cover 16, and an upper gasket 1601 and a lower gasket 1602 are respectively installed at the notches in the through hole, and the upper gasket 1601 and the lower gasket 1602 are both composed of a plurality of rubber blocks with a fan-shaped structure, and at the notches in the through hole of the dust cover 16, springs with the same number as the rubber blocks are glued and connected, and the rubber blocks are connected at the axis of the dust cover 16 through the springs to form an opening and closing structure; since one end of the cable needs to be penetrated, the opening and closing structure of the upper gasket 1601 and the lower gasket 1602 is convenient for the penetration of the cable end, and after the cable is penetrated, it can be squeezed and wrapped on the outside of the cable insulation layer by the spring reset, effectively blocking dust from entering, and the rubber block with a fan-shaped structure has good elasticity and wear resistance, and can withstand multiple cable insertion and removal operations without damage.

[0045] In this embodiment, Figure 2 and Figure 5As shown, a connection plate block 17 is glued to one side of the connection plate 9, and a slot for plugging and connecting the connection plate block 17 is provided on the side of the lower arc-shaped member 5 adjacent to the connection plate 9, and a cavity is provided inside the lower arc-shaped member 5 on the inner wall corresponding to the slot, and the connection plate block 17 is plugged into the slot and is engaged in the cavity on the inner wall of the slot of the lower arc-shaped member 5 by rotation; the connection plate 9 is used as a connecting cable fixing piece 10 and a part for fixing the main cable, namely the female terminal 1 and the male terminal 2. If the cable fails, its detachable The structure makes maintenance work more convenient. During the installation process, the connecting disk block 17 is inserted from the top slot of the lower arc-shaped member 5. The size of the socket is usually slightly larger than the size of the connecting disk block 17. When the connecting disk block 17 is fully inserted into the slot, the connecting disk 9 is rotated to make the connecting disk block 17 and the specific structure set in the internal cavity of the slot engage with each other to form a firm engagement state. There is no need to use complicated tools or perform cumbersome installation steps, and the firm connection structure formed can effectively prevent the connecting disk 9 from accidentally loosening or falling off during use.

[0046] In this embodiment, Figure 2 and Figure 5 As shown, the cable fixing plate 10 is made of a stainless steel sheet and a fixing plate block 18 is arranged at both ends thereof, and the fixing plate block 18 is symmetrically distributed along the axis of the cable fixing plate 10 and one end thereof is movably connected to the cable fixing plate 10 through a spring, and a notch for plugging and connecting the fixing plate block 18 is provided on one side adjacent to the connecting plate 9 and the cable fixing plate 10; the tail end of the metal contact piece of the current one-piece fixing cable is easily deformed after the clamp is pressed, which causes great inconvenience during subsequent disassembly, and the cable fixing plate 10 replaces the one-piece The structure of the tail end can be easily disassembled through the fixing plate block 18, which is convenient for maintenance and replacement operations, reducing maintenance costs and time. When the fixing plate block 18 is pushed inward, one end of the fixing plate block 18 is moved by the active connection formed by the spring and the cable fixing plate 10. The fixing plate block 18 moves toward the notch on the surface of the connecting disk 9 and the insertion is completed. Then, the hand applying the external force is released, and the elastic reset effect of the spring resets the fixing plate block 18 and engages with the slot inside the socket on the surface of the connecting disk 9 to form a firm connection.

[0047] In summary, when using the combined connector assembly for photovoltaic cables, first use a wire stripper to strip the insulation layer of one end of the cable to be connected, and its length must be consistent with the length of the female terminal 1 and the male terminal 2. First, complete the cable installation inside the female terminal 1, pass the cable through the cable fixing plate 10, and at the same time stretch the stretched part of the cable to strip the outer insulation layer and lay it on the inner wall of the lower arc-shaped member 5. The front end of the wire fits tightly in the slot-type docking end groove 11, and in order to improve the effective fixation of the conductor installation, you can choose an insulating tape with good performance to enhance the fixation of the cable in the structure of the lower arc-shaped member 5 to prevent the cable from loosening or shifting during use. After completing the laying of the cable inside the lower arc-shaped member 5, pull the upper arc-shaped member 6, which slides and retracts from the inside of the lower arc-shaped member 5. When the bolt 701 is in the closed position, the spring 702 is in the closed position, and the spring 703 is pressed against the locking nut 706. When the bolt 701 is in the closed position, the locking nut 706 is in the closed position, and the locking nut 706 is pressed against the locking nut 706. 0, the metal sheet at the tail end is deformed and wrapped around the outer wall of the cable, thereby completing the installation of the cable and the entire female terminal 1. The dust cover 16 is threadedly rotated to remove it from the tail end of the female protective shell 3, and the female terminal 1 with the installed cable is passed through the bottom of the dust cover 16. While passing through, the upper gasket 1601 and the lower gasket 1602 are stretched open, and the rubber block of the fan-shaped structure inside is subjected to external force and the aperture becomes larger. After the female terminal 1 passes through, the pressure is released, and the rubber of the fan-shaped structure is reset again due to the safety structure and squeezed and fitted to the outer wall of the cable. At the same time, the female terminal 1 is inserted into the female protective shell 3. While being inserted, the inclined surfaces of the terminal quick connectors 8 at both ends will be aligned with the inclined surfaces of the quick connector limit blocks 1502 at both ends in the female protective shell 3. Contact, as the terminal quick connector 8 is continuously pushed in, the tangent surfaces of the two fit together, generating an extrusion force, which enables the quick connector limit block 1502 to overcome the resistance of the spring and move to the side close to the sealing gasket 1503 through the limit slider 1501. When the terminal quick connector 8 completely passes through the quick connector limit block 1502, the elastic force of the spring causes the quick connector limit block 1502 to automatically reset, thereby resisting against the top of the terminal quick connector 8 and limiting it. After the quick connector limit block 1502 automatically resets, the sealing gasket 1503 will be inserted into the notch of the external cover 15 to achieve a tight fit. Finally, the dust cover 16 is connected to the tail end of the female protective shell 3 by rotating the thread, so that the female terminal 1 completes the installation with the female protective shell 3.Then install the male terminal 2 and the male protective shell 4 through the same installation steps, and finally thread the outer wall of the A assembly block 13 at the front end of the male terminal 2 to the inner wall of the B assembly block 14 at the front end of the female protective shell 3. When the A assembly block 13 and the B assembly block 14 are threadedly connected, the slot-type docking terminal 12 at the front end of the male terminal 2 will be inserted into the slot-type docking terminal groove 11 at the front end of the female terminal 1, thereby completing the positive and negative connection of the cable. During use, these temperature changes can be captured in time through the temperature sensor module. Once the temperature sensor detects an abnormal temperature, the position of the cable that may fail can be quickly located, thereby narrowing the scope of fault investigation. When disassembling, first separate the female protective shell 3 from the male protective shell 4, and then thread the female protective shell 3 or the male protective shell 4. After the dust cover 16 connected is removed, the sealing gasket 1503 is pulled outward, and the quick connector limit block 1502 slides toward the sealing gasket 1503 through the limit slider 1501 to squeeze the spring, and the hollow end below the female protective shell 3 is slightly pressed downward to shake it, and the terminal quick connector 8 loses the limit structure, and the female terminal 1 falls out from the bottom of the female protective shell 3. If the internal cable needs to be replaced, it can be removed by pushing the fixing plate block 18 inward to disengage it from the slot in the notch of the connecting plate 9. At the same time, press the two pressure blocks connected to the tenon block 703 on the surface of the tenon groove 702. The tenon block 703 moves inward in the elastic structure of the spring to compress the spring and disengage from the surface of the tenon 701. The upper arc-shaped member 6 automatically expands and contracts due to the elastic structure inside the lower arc-shaped member 5, and a part of it slides into the lower arc-shaped member 5.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular connector assembly for a photovoltaic cable, comprising a female terminal (1) and a male terminal (2), characterized in that: The female terminal (1) and the male terminal (2) are respectively sleeved with a female protective shell (3) and a male protective shell (4), and the female protective shell (3) and the male protective shell (4) are both composed of a lower arc-shaped member (5) and an upper arc-shaped member (6), and the lower arc-shaped member (5) and the upper arc-shaped member (6) are snap-connected by a fastener (7), and both ends of one side of the outer wall of the lower arc-shaped member (5) are glued and connected with terminal quick connectors (8), and the other side of the outer wall of the lower arc-shaped member (5) is snap-connected with a connecting plate (9), and the connecting plate (9) is snap-connected with a cable fixing plate (10), and the opposite ends of the female terminal (1) and the male terminal (2) are respectively installed with a slot-type docking end groove (11) and a slot-type docking end head (12). The slot-type docking terminal (12) is plugged into the slot-type docking terminal groove (11), and the slot-type docking terminal groove (11) and the slot-type docking terminal (12) are respectively connected in an integral manner with one end of a lower arc-shaped member (5) provided in the female terminal (1) and the male terminal (2), and one end of the female protective shell (3) and the male protective shell (4) on the opposite side are respectively rotatably connected with an A assembly block (13) and a B assembly block (14), and the outer wall of the A assembly block (13) is threadedly connected to the inner wall of the B assembly block (14), and both ends of the outer walls of the A assembly block (13) and the B assembly block (14) are glued and connected with an external cover (15), and the other ends of the female protective shell (3) and the male protective shell (4) are threadedly connected with a dust cover (16); The fastener (7) comprises a tenon (701) and a tenon groove (702), wherein the tenon (701) is glued to the upper arc-shaped member (6), and the tenon groove (702) is located at a position where the surface of the lower arc-shaped member (5) and the upper arc-shaped member (6) are closely fitted, and a tenon stopper (703) is installed inside the tenon groove (702), and one end of the tenon stopper (703) is glued to the inner wall of the tenon groove (702) through a spring, and the other end of the tenon stopper (703) is glued to a shaft rod, and one end of the shaft rod passes through the tenon groove (702) and extends to the outside of the tenon groove (702); The top wall and the bottom wall of the external cover (15) are both slidably connected to the limit slider (1501), and the limit sliders (1501) are connected via a quick-connect limit block (1502). The outer wall of the external cover (15) is plug-connected with a sealing gasket (1503), and the sealing gasket (1503) is connected to the quick-connect limit block (1502) via spring gluing.

2. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: The lower arc-shaped member (5) is provided with a slide groove for sliding connection with the upper arc-shaped member (6), and a plurality of springs integrally connected to one end of the upper arc-shaped member (6) are glued inside the slide groove, and the upper arc-shaped member (6) slides and retracts in the slide groove of the lower arc-shaped member (5) through the springs.

3. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: The slide grooves on the side of the lower arc-shaped member (5) adjacent to the slot-type docking end groove (11) and the slot-type docking end head (12) are through-type, and the slide grooves on the side of the lower arc-shaped member (5) adjacent to the connecting plate (9) are non-through-type, and one end of the upper arc-shaped member (6) slides in the slide grooves correspondingly arranged on the surfaces of the slot-type docking end groove (11) and the slot-type docking end head (12), respectively, while the other end of the upper arc-shaped member (6) is tightly fitted and connected to the surfaces of the connecting plates (9) correspondingly arranged in the female terminal (1) and the male terminal (2).

4. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: The lower arc-shaped member (5) and the upper arc-shaped member (6) are both composed of a double-layer structure of inner copper metal and outer carbon fiber composite material, and the outer layers of the lower arc-shaped member (5) and the upper arc-shaped member (6) are provided with a grid-shaped heat dissipation hole structure, and the lower arc-shaped member (5) and the upper arc-shaped member (6) are connected by a tenon (701) and a tenon groove (702) for insertion.

5. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: An axle is provided at the axis center of the tenon (701), and a semicircular through hole is penetrated by the tenon stopper (703), and the specification of the through hole is half of the maximum diameter specification of the tenon (701) surface. At the same time, the tenon stopper (703) slides and retracts inside the tenon groove (702) through a spring, and the bottom of the tenon stopper (703) is closely connected to the top of the maximum diameter specification of the tenon (701) surface, and the tenon (701) is clamped in the interior of the tenon groove (702) through the tenon stopper (703).

6. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: The terminal quick connector (8) and the quick connector limit block (1502) are both in a regular trapezoidal shape, and the side of the terminal quick connector (8) that fits the quick connector limit block (1502) is in a tangent inclined structure, and one end of the external cover (15) is respectively connected with the two ends corresponding to the A assembly block (13) and the B assembly block (14) where it is located, and at the same time, the quick connector limit block (1502) forms an elastic reset structure through a spring between it and the sealing gasket (1503) and slides and retracts inside the A assembly block (13) and the B assembly block (14) where it is located.

7. A photovoltaic cable modular connector assembly according to claim 1, characterized in that: The female terminal (1) and the male terminal (2) are respectively engaged with the inside of the female protective shell (3) and the male protective shell (4) through the engagement connection between the terminal quick connector (8) and the quick connector limit block (1502), and the diameter specifications of the male terminal (2) and the male protective shell (4) are smaller than the specifications of the female terminal (1) and the female protective shell (3), and a temperature sensor module is provided above the inner wall of the female protective shell (3) corresponding to the connection between the female terminal (1) and the male terminal (2).

8. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: A through hole is provided at the axis of the dust cover (16), and an upper gasket (1601) and a lower gasket (1602) are respectively installed at the notches in the through hole, and the upper gasket (1601) and the lower gasket (1602) are both composed of a plurality of rubber blocks with fan-shaped structures. At the same time, springs having the same number as the rubber blocks are glued and connected at the notches in the through hole of the dust cover (16), and the rubber blocks are connected by springs to form an opening and closing structure at the axis of the dust cover (16).

9. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: A connection disk block (17) is glued to one side of the connection disk (9), and a slot for plugging and connecting the connection disk block (17) is provided on a side of the lower arc-shaped member (5) adjacent to the connection disk (9), and a cavity is provided inside the lower arc-shaped member (5) on the inner wall corresponding to the slot, and the connection disk block (17) is plugged into the slot and is engaged in the cavity on the inner wall of the slot of the lower arc-shaped member (5) by rotation.

10. A combined connector assembly for a photovoltaic cable according to claim 1, characterized in that: The cable fixing plate (10) is made of a stainless steel sheet and is provided with fixing plate blocks (18) at both ends thereof, and the fixing plate blocks (18) are symmetrically distributed along the axis of the cable fixing plate (10) and one end of each is movably connected to the cable fixing plate (10) via a spring, and a notch for plugging and connecting the fixing plate blocks (18) is provided on one side adjacent to the connecting plate (9) and the cable fixing plate (10).

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