A line-to-line self-locking photovoltaic connector

Abstract

This invention discloses a wire-to-wire self-locking photovoltaic connector. The photovoltaic connector is a 3-pin integrated fiber optic connector, consisting of a No. 1 socket and a No. 2 socket that are interlocked. After interlocking, the connector can achieve an IP67 waterproof rating and has a smaller space. The No. 1 socket has an open groove design on its outer shell, so the spring contacts will not be jammed when interlocked with the socket, thereby improving the interlocking life of the spring contacts. It also has a foolproof design with a flange platform, which can only be interlocked in one direction. The No. 1 pin of the No. 1 socket has a contact crown spring design, which makes the contact more stable and the life longer. The No. 1 outer shell and the No. 1 fixing part of the No. 1 socket have a barbed design, which plays a role in preventing the plastic from falling off after the plastic assembly. The No. 1 socket has an elastic compensation part, so that the No. 1 socket and the No. 2 socket can still maintain a tight connection after multiple connection and disconnection.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage connectors in the high-current photovoltaic industry, and in particular to a line-end-to-line-end self-locking photovoltaic connector. Background Art

[0002] Photovoltaic connectors are key parts that connect various components such as photovoltaic panels, combiner boxes, controllers and inverters. They are responsible for collecting the electricity generated by a large number of photovoltaic panels and transmitting it to the inverter safely and efficiently, and then converting it into usable electrical energy. Therefore, the performance of photovoltaic connectors directly affects the overall operating efficiency and stability of the photovoltaic system.

[0003] Most of the photovoltaic connectors on the market are single-pin, line-to-line design. Although there are multi-pin ones, there are no 3-pin plastic integrated line-to-line products. Photovoltaic connectors usually need to work in harsh outdoor environments, so they must have waterproof and dustproof functions to ensure the reliability and stability of the connection. In large-scale photovoltaic power stations, due to the large number of components and compact layout, the performance and spatial adaptability of the connectors are very high. Photovoltaic connectors are required to have multiple PINs and small space line-to-line to meet the use requirements. In addition, since the structure of the connector connection is a plastic snap-on structure, the plastic elasticity of the snap-on may be lost after long-term use, resulting in the snap-on failure. Summary of the invention

[0004] The object of the present invention is to provide a line-end-to-line-end self-locking photovoltaic connector to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A line-to-line self-locking photovoltaic connector, the connector comprising a No. 1 socket, a No. 2 socket and an unlocking tool, the No. 1 socket is connected to the No. 2 socket, the No. 1 socket is slidably connected to the unlocking tool, and the No. 2 socket is slidably connected to the unlocking tool;

[0007] The No. 1 socket includes a No. 1 shell, a No. 1 fixing piece, a No. 1 pin, a crown spring, an elastic compensating piece, and a No. 1 wire. The No. 1 shell is fixedly connected to the No. 1 fixing piece, the No. 1 fixing piece is connected to the No. 2 socket, the No. 1 fixing piece is slidably connected to the unlocking tool, the No. 1 pin is fixedly connected to the No. 1 fixing piece, the crown spring is fixedly connected to the No. 1 pin, the crown spring is fixedly connected to the No. 2 socket, the elastic compensating piece is connected to the No. 1 shell, the elastic compensating piece is slidably connected to the No. 1 fixing piece, and the No. 1 wire is fixedly connected to the No. 1 pin;

[0008] The No. 2 socket includes a No. 2 shell, a No. 2 fixing piece, a No. 2 pin, and a No. 2 wire;

[0009] The No. 1 fixing part includes a No. 1 shell, a hook, a No. 1 spring, a pressure plate, a flange platform, a No. 1 connecting buckle, a No. 1 clamp ring, a No. 1 waterproof ring, and a No. 2 waterproof ring. The No. 1 shell is fixedly connected to the hook, the hook is connected to the No. 2 fixing part by a clamp, the No. 1 shell is provided with a mounting groove, the No. 1 spring is arranged in the mounting groove, the pressure plate is fixedly connected to the No. 1 spring, the pressure plate is slidably connected to the mounting groove, the pressure plate is in friction contact with the No. 2 fixing part, the flange platform is fixedly connected to the No. 1 shell, and the No. 1 shell is provided with a No. 1 clamp block The No. 1 shell and the No. 1 connecting buckle are fixedly connected, the No. 1 clamping block and the No. 1 connecting buckle are clamped together, the No. 1 shell is provided with a No. 1 clamping groove, the No. 1 clamping ring is arranged on the No. 1 clamping groove, the No. 1 clamping ring and the No. 1 pin are fixedly connected, the No. 1 shell is provided with a No. 1 annular groove, the No. 1 waterproof ring is arranged on the No. 1 annular groove, the No. 1 waterproof ring is tightly connected to the No. 2 fixing piece, the No. 1 shell is provided with a No. 2 annular groove, the No. 2 waterproof ring is arranged on the No. 2 annular groove, and the No. 2 waterproof ring is tightly connected to the No. 1 shell.

[0010] The photovoltaic connector is composed of a No. 1 socket and a No. 2 socket. The photovoltaic connector is a 3PIN integrated fiber optic connector. After being plugged in, the connector can reach the IP67 waterproof level, and the space is smaller. The connector is locked with a one-time lock structure. If you need to pull out the plug, you need to use an unlocking tool to pull it out. The No. 1 socket is composed of a No. 1 shell and a No. 1 fixing part to form a basic structure. The crown spring provides a more stable contact for the No. 1 socket and the No. 2 socket. The elastic compensation part compensates the elasticity of the connection structure for the No. 1 fixing part, so that the service life of the No. 1 fixing part is longer. Through the No. 1 wire, the electrical energy can be safely and efficiently transmitted to the subsequent processing and storage equipment. The hook connected to the No. 1 shell makes the No. 1 socket and the No. 2 socket snap connected. The mechanical snap can achieve quick connection and form a one-time lock structure, which requires an unlocking tool to open. The connection between the No. 1 spring and the pressure plate can effectively prevent axial looseness after the No. 1 socket and the No. 2 socket are connected, thereby improving the stability of the connection. The flange platform can only allow the No. 1 socket to be connected to the No. 2 socket from one direction, thereby limiting the insertion direction of the connector and ensuring that the connector can only be connected to the corresponding interface in the correct way, thereby avoiding electrical failures or equipment damage caused by incorrect connections. The No. 1 connecting buckle forms a barb structure with the No. 1 fixing piece and the No. 1 shell, so that the No. 1 shell and the No. 1 fixing piece play a role of stopping retreat after assembly and prevent the plastic from falling off. The No. 1 clamping ring fixes the No. 1 pin on the No. 1 shell to ensure smooth transmission of current. The design of the two waterproof circles, the No. 1 waterproof ring and the No. 2 waterproof ring, can effectively prevent moisture from invading the inside of the connector, thereby protecting the connector and the connected wires from moisture erosion.

[0011] Further, the No. 2 shell and the No. 2 fixing piece are fixedly connected, the No. 2 fixing piece and the No. 1 fixing piece are fixedly connected, the No. 2 fixing piece and the No. 1 pin are fixedly connected, the No. 2 fixing piece and the No. 2 pin are fixedly connected, the No. 2 pin and the crown spring are fixedly connected, and the No. 2 wire and the No. 2 pin are fixedly connected.

[0012] The basic structure of the No. 2 socket is composed of a No. 2 shell and a No. 2 fixing. By setting the No. 2 pin to the same polarity as the No. 1 pin, short circuits or equipment damage caused by electrical connection errors can be avoided. The No. 2 wire allows electrical energy to be safely and efficiently transmitted to subsequent processing and storage equipment.

[0013] Furthermore, a slot is provided on the first shell, and the slot is connected to the elastic compensation piece. A lock hole is provided on the first shell, and the lock hole is slidably connected to the unlocking tool.

[0014] By providing a slot on the No. 1 shell, the hook will not be stuck by the shell during insertion, thereby increasing the insertion life of the hook. Through the provided lock hole, an unlocking tool can be inserted from the lock hole to unlock the connection between the No. 1 socket and the No. 2 socket.

[0015] Furthermore, the elastic compensation part includes a support rod, a connecting rod, a No. 2 spring, a sliding rod, a No. 3 spring, a limit rod, a limit frame, and a reset plate. The support rod is in friction contact with the hook, the connecting rod and the support rod are hingedly connected, the sliding rod is arranged on the bottom surface of the slot, the No. 2 spring and the support rod are fixedly connected, the No. 2 spring and the connecting rod are fixedly connected, the sliding rod and the connecting rod are hingedly connected, the sliding rod and the slotted bottom surface are slidingly connected, the No. 3 spring and the connecting rod are fixedly connected, the No. 3 spring and the sliding rod are fixedly connected, the limit rod is arranged on the bottom surface of the slot, the limit frame is arranged on the bottom surface of the slot, the limit frame and the sliding rod are in friction contact, and the reset plate and the connecting rod are fixedly connected.

[0016] Through the frictional contact between the support rod and the hook, under the action of the No. 2 spring, the hook can be located at the position where the elasticity is not lost, and the connecting rod and the support rod are hingedly connected, so that the elastic compensation part will not affect the plug-in connection between the hook and the No. 2 connecting buckle, and the sliding rod and the connecting rod are hingedly connected, so that the hook moves to the outside of the connector when unlocking, and the support rod slides with the inclined surface of the hook, and the support rod drives the connecting rod to make a circular motion along the hinge toward the slotted side, so that the No. 3 spring is stretched. Under the action of the spring stretching force, the sliding rod makes the same circular motion along the hinge, and the connecting rod rotates ninety degrees and stops rotating through the limit rod. The sliding rod also stops rotating, and the support rod against the hook is moved away, so that unlocking with the unlocking tool will not be affected. By toggling the reset plate, the support rod can be reset after unlocking to continue to compensate for the elasticity of the hook.

[0017] Furthermore, a friction surface is provided on the bottom surface of the groove, the roughness of the friction surface gradually decreases from the sliding rod to the hook side, and the friction surface is in friction contact with the sliding rod.

[0018] The friction surface is provided on the bottom of the groove, so that the friction between the sliding rod and the bottom surface is increased. When the connecting rod makes a circular motion along the hinge, the sliding rod makes a circular motion in the same direction along the hinge slower than the connecting rod. The No. 3 spring can be stretched and reach a certain deformation amount. The friction surface of The roughness gradually decreases from the sliding rod to the hook side, and the friction between the sliding rod and the bottom surface gradually decreases, so that the No. 3 spring accumulates enough elastic potential energy, and then the elastic potential energy is instantly converted into kinetic energy, so that the sliding rod moves in the same direction along the hinge faster than the connecting rod. The No. 3 spring pushes the connecting rod to rotate faster, so that the support rod quickly leaves the hook, so that the unlocking tool will no longer be affected by the directional force of the support rod and the No. 2 spring when unlocking.

[0019] Furthermore, the No. 2 fixing part includes a No. 2 shell, a No. 4 clamping block, a No. 2 connecting buckle, a No. 2 clamping ring, and a No. 3 waterproof ring. The No. 2 shell and the No. 2 outer shell are fixedly connected, the No. 2 shell and the No. 4 clamping block are fixedly connected, the No. 2 shell is provided with a connecting hole, the No. 1 clamping block is clamped with the connecting hole, the No. 2 connecting buckle and the No. 2 shell are fixedly connected, the No. 2 connecting buckle and the hook are clamped, the No. 2 connecting buckle and the No. 1 waterproof ring are tightly connected, the No. 2 shell is provided with a No. 2 clamping groove, the No. 2 clamping ring is arranged on the No. 2 clamping groove, the No. 2 clamping ring and the No. 2 pin are fixedly connected, the No. 2 shell is provided with a No. 3 annular groove, the No. 3 waterproof ring is arranged on the No. 3 annular groove, and the No. 3 waterproof ring is tightly connected to the No. 2 shell.

[0020] Through the No. 4 clamping block connected to the No. 2 shell, the No. 2 fixing piece and the No. 2 shell form a snap connection to ensure the stability of the connection, so that the No. 2 fixing piece and the No. 2 shell are tightly fixed together and are not easy to loosen or fall off. Through the No. 2 connecting buckle and the hook snap connection, the connecting parts are effectively prevented from loosening or falling off due to vibration or external force during use, and the assembly process becomes simple and quick at the same time, without the need for complicated operating steps or tools, which greatly improves the assembly efficiency. Through the No. 2 clamping ring, the No. 2 pin is fixed on the No. 2 shell to ensure that the current can be transmitted smoothly. By setting the No. 3 waterproof ring, moisture can be effectively prevented from invading the inside of the connector, thereby protecting the connector and the connected wires from moisture erosion.

[0021] Furthermore, a No. 2 clamping block is provided outside the No. 1 pin, and the No. 2 clamping block is buckledly connected to the No. 1 clamping ring. The No. 1 pin is provided with a No. 1 through hole, and a number of No. 3 clamping blocks are provided in the No. 1 through hole, and the No. 3 clamping block is fixedly connected to the crown spring.

[0022] A No. 2 clamping block is provided on the outside of the No. 1 pin, so that the No. 1 pin and the No. 1 clamping ring form a snap connection, which effectively prevents the connecting component from loosening or falling off due to vibration or external force during use. By providing a number of No. 3 clamping blocks, the crown spring can be stably fixed on the No. 1 pin.

[0023] Furthermore, a No. 5 clamping block is provided outside the No. 2 pin, and the No. 5 clamping block is buckledly connected to the No. 2 clamping ring.

[0024] A No. 5 clamping block is arranged on the outside of the No. 2 pin, so that the No. 2 pin and the No. 2 clamping ring form a snap connection, which effectively prevents the connecting parts from loosening or falling off due to vibration or external force during use.

[0025] Furthermore, the unlocking tool is H-shaped, and a slope is provided on the unlocking tool which is inclined toward one side of the hook.

[0026] The unlocking tool is provided with an inclined surface so that the unlocking tool can cooperate with the hook. Through the inclination of the inclined surface, the unlocking tool becomes wider from the lower end to the upper end, so that the unlocking tool can be inserted to push the hook open to achieve the unlocking effect.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention forms a 3PIN integrated optical fiber connector by plugging a No. 1 socket and a No. 2 socket together. After plugging together, the connector can reach an IP67 waterproof grade, and the space is narrower. The connector is locked with a one-time lock structure, and an unlocking tool is required to unplug the plug. The No. 1 socket is designed with two waterproof circles, a No. 1 waterproof ring and a No. 2 waterproof ring, which effectively prevents moisture from invading the inside of the connector, thereby protecting the connector and the wires connected to it from moisture erosion. The flange platform provided on the No. 1 fixing piece allows the No. 1 socket to be plugged and connected to the No. 2 socket in only one direction, ensuring that the connector can only be connected to the corresponding interface in a correct manner, thereby avoiding electrical faults caused by incorrect connections. In case of failure or equipment damage, a slot is provided on the No. 1 shell so that the hook will not be stuck by the shell during insertion, thereby increasing the plug-in life of the hook. The No. 1 pin is provided with a number of No. 3 blocks so that the crown spring can be stably fixed on the No. 1 pin. The crown spring provides more stable contact for the pins of the No. 1 socket and the No. 2 socket. The No. 1 connecting buckle forms a barb structure with the No. 1 fixing part and the No. 1 shell, so that after the No. 1 shell and the No. 1 fixing part are assembled, they play a role of stopping retreat and prevent the plastic from falling off. The elastic compensating part compensates for the elasticity of the hook, thereby increasing the service life of the connector connected by the hook and the No. 2 connecting buckle. When the unlocking device opens the buckle, under the action of the No. 3 spring, the elastic compensating part reduces the connection influence of the unlocking device on opening the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of a No. 1 socket of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the No. 2 socket of the present invention;

[0033] Figure 5 is a schematic diagram of the crown spring connection of the present invention;

[0034] Figure 6 yes Figure 2 A magnified view of a part A;

[0035] Figure 7 It is a schematic diagram of the flange platform and the slotted structure;

[0036] Figure 8 is a schematic diagram of the structure of the elastic compensation member;

[0037] Fig. 9 yes Figure 8 A magnified view of a part B;

[0038] Fig.10 This is a schematic diagram of the structure of card block No. 4;

[0039] Fig.11 This is a schematic diagram of the connection between pin 1 and pin 2;

[0040] Fig.12 yes Fig.11 A partial C magnified view of;

[0041] Fig.13 yes Fig.11 A local D magnified view of;

[0042] In the figure: 1- No. 1 socket, 11- No. 1 shell, 111- No. 1 block, 112- slot, 12- No. 1 fixing piece, 121- No. 1 shell, 1211- installation slot, 1212- No. 1 card slot, 122- hook, 123- No. 1 spring, 124- pressure plate, 125- flange platform, 126- No. 1 connecting buckle, 127- No. 1 clamp ring, 128- No. 1 waterproof ring, 129- No. 2 waterproof ring, 13- No. 1 pin, 131- No. 2 block, 132- No. 3 block, 14- crown spring, 15- No. 1 wire, 16- Elastic compensation part, 161-support rod, 162-connecting rod, 163-No. 2 spring, 164-sliding rod, 165-No. 3 spring, 166-limit rod, 167-limit frame, 168-reset plate, 2-No. 2 socket, 21-No. 2 shell, 22-No. 2 fixing part, 221-No. 2 shell, 2211-No. 2 card slot, 222-No. 4 card block, 223-No. 2 connecting buckle, 224-No. 2 clamping ring, 225-No. 3 waterproof ring, 23-No. 2 pin, 231-No. 5 card block, 24-No. 2 wire, 3-unlocking tool. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] The present invention provides a technical solution:

[0045] like Figure 1~Figure 3 As shown, a line-to-line self-locking photovoltaic connector, the connector includes a No. 1 socket 1, a No. 2 socket 2 and an unlocking tool 3, the No. 1 socket 1 and the No. 2 socket 2 are connected, the No. 1 socket 1 and the unlocking tool 3 are slidably connected, and the No. 2 socket 2 and the unlocking tool 3 are slidably connected;

[0046] Socket No. 1 includes a shell No. 11, a fixing part No. 12, a pin No. 13, a crown spring 14, an elastic compensating part 16, and a No. 1 electric wire 15. The shell No. 11 is fixedly connected to the fixing part No. 12, the fixing part No. 12 is connected to the socket No. 2, the fixing part No. 12 is slidably connected to the unlocking tool 3, the pin No. 13 is fixedly connected to the fixing part No. 12, the crown spring 14 is fixedly connected to the pin No. 13, the crown spring 14 is fixedly connected to the socket No. 2, the elastic compensating part 16 is connected to the shell No. 11, the elastic compensating part 16 is slidably connected to the fixing part No. 12, and the No. 1 electric wire 15 is fixedly connected to the pin No. 13. ；

[0047] The second socket 2 includes a second housing 21, a second fixing member 22, a second plug pin 23, and a second wire 24;

[0048] The No. 1 fixing member 12 includes a No. 1 shell 121, a hook 122, a No. 1 spring 123, a pressure plate 124, a flange 125, a No. 1 connecting buckle 126, a No. 1 clamp ring 127, a No. 1 waterproof ring 128, and a No. 2 waterproof ring 129. The No. 1 shell 121 is fixedly connected to the hook 122, and the hook 122 is snap-connected to the No. 2 fixing member 22. The No. 1 shell 121 is provided with a mounting groove 1211, and the No. 1 spring 123 is arranged in the mounting groove 1211. The pressure plate 124 is fixedly connected to the No. 1 spring 123, and the pressure plate 124 is slidably connected to the mounting groove 1211. The pressure plate 124 is in friction contact with the No. 2 fixing member 22, and the flange 125 is fixedly connected to the No. 1 shell 121. The No. 1 shell 11 is provided with a No. 1 clamping block 111, the No. 1 shell 121 is fixedly connected with the No. 1 connecting buckle 126, the No. 1 clamping block 111 and the No. 1 connecting buckle 126 are connected by clamping, the No. 1 shell 121 is provided with a No. 1 clamping groove 1212, the No. 1 clamping ring 127 is arranged on the No. 1 clamping groove 1212, the No. 1 clamping ring 127 and the No. 1 pin 13 are fixedly connected, the No. 1 shell 121 is provided with a No. 1 annular groove, the No. 1 waterproof ring 128 is sleeved on the No. 1 annular groove, the No. 1 waterproof ring 128 and the No. 2 fixing piece 22 are tightly connected, the No. 1 shell 121 is provided with a No. 2 annular groove, the No. 2 waterproof ring 129 is sleeved on the No. 2 annular groove, and the No. 2 waterproof ring 129 and the No. 1 shell 11 are tightly connected.

[0049] The photovoltaic connector is composed of a No. 1 socket 1 and a No. 2 socket 2, which are plugged in. The photovoltaic connector is a 3PIN integrated optical fiber connector. After plugging in, the connector can reach the IP67 waterproof level, and the space is smaller. The connector is locked with a one-time lock structure. The plug needs to be unplugged with the help of an unlocking tool 3. The No. 1 socket 1 is composed of a No. 1 shell 11 and a No. 1 fixing part 12 to form a basic structure. The crown spring 14 provides a more stable contact for the No. 1 socket 1 and the No. 2 socket 2. The elastic compensation part 16 compensates the elasticity of the connection structure for the No. 1 fixing part 12, so that the service life of the No. 1 fixing part 12 is longer. Through the No. 1 wire 15, the electric energy can be safely and efficiently transmitted to the subsequent processing and storage equipment. Through the hook 122 connected to the No. 1 shell 121, the No. 1 socket 1 and the No. 2 socket 2 are snap-connected. The mechanical snap can achieve quick connection and form a one-time lock structure. The unlocking tool 3 is required to open it. Through the No. 1 elastic The spring 123 is connected to the pressure plate 124, so that after the No. 1 socket 1 and the No. 2 socket 2 are connected, axial looseness is effectively prevented, and the stability of the connection is improved. The flange 125 is provided, so that the No. 1 socket 1 can only be connected to the No. 2 socket 2 from one direction, limiting the insertion direction of the connector, ensuring that the connector can only be connected to the corresponding interface in a correct manner, thereby avoiding electrical failures or equipment damage caused by incorrect connection. The No. 1 connecting buckle 126 forms a barb structure with the No. 1 fixing member 12 and the No. 1 shell 11, so that the No. 1 shell 11 and the No. 1 fixing member 12 play a role of stopping retreat after assembly and prevent the plastic from falling off. The No. 1 clamping ring 127 fixes the No. 1 pin 13 on the No. 1 shell 121 to ensure that the current can be transmitted smoothly. The design of the two waterproof circles, the No. 1 waterproof ring 128 and the No. 2 waterproof ring 129, effectively prevents moisture from invading the interior of the connector, thereby protecting the connector and the connected wires from moisture erosion.

[0050] like Figure 2 and Figure 4 As shown, the No. 2 housing 21 and the No. 2 fixing part 22 are fixedly connected, the No. 2 fixing part 22 and the No. 1 fixing part 12 are fixedly connected, the No. 2 fixing part 22 and the No. 1 pin 13 are fixedly connected, the No. 2 fixing part 22 and the No. 2 pin 23 are fixedly connected, the No. 2 pin 23 and the crown spring 14 are fixedly connected, and the No. 2 wire 24 and the No. 2 pin 23 are fixedly connected.

[0051] The basic structure of the No. 2 socket 2 is composed of a No. 2 shell 21 and a No. 2 fixing part 22. By setting the No. 2 pin 23 to the same polarity as the No. 1 pin 13, short circuits or equipment damage caused by electrical connection errors can be avoided. The No. 2 wire 24 allows the electrical energy to be safely and efficiently transmitted to subsequent processing and storage equipment.

[0052] like Figure 7As shown, a slot 112 is provided on the first shell 11, and the slot 112 is connected to the elastic compensation member 16. A lock hole is provided on the first shell 11, and the lock hole is slidably connected to the unlocking tool 3.

[0053] By providing a slot 112 on the No. 1 shell 11, the hook 122 will not be stuck by the shell during insertion, thereby improving the insertion life of the hook 122. Through the provided lock hole, the unlocking tool 3 can be inserted from the lock hole to unlock the connection between the No. 1 socket 1 and the No. 2 socket 2.

[0054] like Figure 8 As shown, the elastic compensating member 16 includes a support rod 161, a connecting rod 162, a second spring 163, a sliding rod 164, a third spring 165, a limiting rod 166, a limiting frame 167, and a reset plate 168. The support rod 161 is in frictional contact with the hook 122, the connecting rod 162 is hingedly connected to the support rod 161, the sliding rod 164 is arranged on the bottom surface of the slot 112, the second spring 163 is fixedly connected to the support rod 161, and the second spring 163 and the connecting rod are fixedly connected. 162 is fixedly connected, the sliding rod 164 and the connecting rod 162 are hingedly connected, the sliding rod 164 and the bottom surface of the slot 112 are slidably connected, the No. 3 spring 165 and the connecting rod 162 are fixedly connected, the No. 3 spring 165 and the sliding rod 164 are fixedly connected, the limit rod 166 is arranged on the bottom surface of the slot 112, the limit frame 167 is arranged on the bottom surface of the slot 112, the limit frame 167 and the sliding rod 164 are in friction contact, and the reset plate 168 and the connecting rod 162 are fixedly connected.

[0055] The support rod 161 and the hook 122 are in frictional contact, and under the action of the second spring 163, the hook 122 can be located at a position where the elasticity is not lost. The connecting rod 162 and the support rod 161 are hingedly connected, so that the elastic compensation member 16 will not affect the plug-in connection between the hook 122 and the second connecting buckle 223. The sliding rod 164 and the connecting rod 162 are hingedly connected, so that when the lock is unlocked, the hook 122 moves to the outside of the connector, and the support rod 161 slides with the inclined surface of the hook 122, and the support rod 161 drives the connecting rod 162 makes a circular motion along the hinge toward the side of the slot 112, so that the No. 3 spring 165 is stretched. Under the action of the spring stretching force, the sliding rod 164 makes the same circular motion along the hinge, and the connecting rod 162 rotates ninety degrees and stops rotating through the limit rod 166. The sliding rod 164 also stops rotating, and the support rod 161 against the hook 122 is moved away, so that the unlocking with the unlocking tool 3 will not be affected. By toggling the reset plate 168, the support rod 161 can be reset after unlocking, and continue to compensate the elasticity of the hook 122.

[0056] like Figure 8 and Fig. 9 As shown, the bottom surface of the slot 112 is provided with a friction surface. ofThe roughness gradually decreases from the sliding rod 164 to the hook 122 side, and the friction surface is in frictional contact with the sliding rod 164 .

[0057] A friction surface is provided on the bottom surface of the slot 112, so that the friction between the sliding rod 164 and the bottom surface is increased. When the connecting rod 162 makes a circular motion along the hinge, the sliding rod 164 makes a circular motion in the same direction along the hinge slower than the connecting rod 162. The No. 3 spring 165 can be stretched and reach a certain deformation amount. The roughness of the friction surface gradually decreases from the sliding rod 164 to the hook 122 side. The friction between the sliding rod 164 and the bottom surface gradually decreases, so that the No. 3 spring 165 accumulates enough elastic potential energy, and then the elastic potential energy is instantly converted into kinetic energy, so that the sliding rod 164 makes a circular motion in the same direction along the hinge faster than the connecting rod 162. The No. 3 spring 165 pushes the connecting rod 162 to rotate faster, so that the support rod 161 quickly leaves the hook 122, so that the unlocking tool 3 will no longer be affected by the directional force of the support rod 161 and the No. 2 spring 163 when unlocking.

[0058] like Figure 2 , Figure 4 and Figure 10~Figure 13 As shown, the second fixing member 22 includes a second shell 221, a fourth clamping block 222, a second connecting buckle 223, a second clamping ring 224, and a third waterproof ring 225. The second shell 221 is fixedly connected to the second shell 21, the second shell 221 is fixedly connected to the first clamping block 111, the second shell 21 is provided with a connecting hole, the fourth clamping block 222 is connected to the connecting hole by a clamping connection, the second connecting buckle 223 is fixedly connected to the second shell 221, and the second connecting buckle 224 is fixedly connected to the first clamping block 111. 23 and the hook 122 are snap-connected, the No. 2 connecting buckle 223 and the No. 1 waterproof ring 128 are tightly connected, the No. 2 shell 221 is provided with a No. 2 snap-in groove 2211, the No. 2 snap-in groove 224 is arranged on the No. 2 snap-in groove 2211, the No. 2 snap-in ring 224 and the No. 2 pin 23 are fixedly connected, the No. 2 shell 221 is provided with a No. 3 annular groove, the No. 3 waterproof ring 225 is sleeved on the No. 3 annular groove, and the No. 3 waterproof ring 225 and the No. 2 shell 21 are tightly connected.

[0059] By means of the No. 4 clamping block 222 connected to the No. 2 shell 221, the No. 2 fixing member 22 and the No. 2 shell 21 form a snap connection, ensuring the stability of the connection, so that the No. 2 fixing member 22 and the No. 2 shell 21 are tightly fixed together and are not easy to loosen or fall off. By means of the No. 2 connecting buckle 223 and the hook 122 snap connection, the connecting parts are effectively prevented from loosening or falling off due to vibration or external force during use, and at the same time, the assembly process becomes simple and quick, without the need for complicated operating steps or tools, which greatly improves the assembly efficiency. By means of the No. 2 clamping ring 224, the No. 2 pin 23 is fixed on the No. 2 shell 221, ensuring that the current can be transmitted smoothly. By setting the No. 3 waterproof ring 225, moisture is effectively prevented from invading the interior of the connector, thereby protecting the connector and the wires connected to it from moisture erosion.

[0060] like Figure 3 and Fig.12 As shown, the No. 1 pin 13 is provided with a No. 2 clamping block 131 on the outside, the No. 2 clamping block 131 is buckled with the No. 1 clamping ring 127, the No. 1 pin 13 is provided with a No. 1 through hole, and the No. 1 through hole is provided with a number of No. 3 clamping blocks 132, and the No. 3 clamping block 132 is fixedly connected with the crown spring 14.

[0061] A No. 2 clamping block 131 is provided on the outside of the No. 1 pin 13, so that the No. 1 pin 13 and the No. 1 clamping ring 127 form a snap connection, which effectively prevents the connecting component from loosening or falling off due to vibration or external force during use. By providing a plurality of No. 3 clamping blocks 132, the crown spring 14 can be stably fixed on the No. 1 pin 13.

[0062] like Figure 2 and Fig.13 As shown, a No. 5 clamping block 231 is disposed outside the No. 2 plug pin 23 , and the No. 5 clamping block 231 is snap-connected with the No. 2 clamping ring 224 .

[0063] A No. 5 clamping block 231 is provided outside the No. 2 plug pin 23, so that the No. 2 plug pin 23 and the No. 2 clamping ring 224 form a snap connection, which effectively prevents the connection component from loosening or falling off due to vibration or external force during use.

[0064] like Figure 1 As shown, the unlocking tool 3 is H-shaped, and the unlocking tool 3 is provided with an inclined surface inclined toward one side of the hook 122 .

[0065] The unlocking tool 3 is provided with an inclined surface so that the unlocking tool 3 can cooperate with the hook 122. Through the inclination of the inclined surface, the unlocking tool 3 becomes wider from the lower end to the upper end, so that the unlocking tool 3 can be inserted to push the hook 122 open to achieve the unlocking effect.

[0066] Working principle of the present invention:

[0067] Through the cooperation of the hook 122 and the No. 2 connecting buckle 223, the No. 1 socket 1 and the No. 2 socket 2 can be quickly plugged in and locked with the buckle, forming a compact and IP67 waterproof connection structure. The slot 112 is designed to prevent the hook 122 from being blocked. The No. 1 spring 123 and the pressure plate 124 prevent the axial loosening of the hook 122 and the No. 2 connecting buckle 223 when connected. The flange 125 ensures that the No. 1 socket 1 can only be inserted in one direction. The No. 1 connecting buckle 126 and the No. 1 clamping block 111 form a barb stop, and the multiple clamping blocks on the pin stabilize the connection between the crown spring 14 and the No. 1 clamping ring 127. The double waterproof ring ensures waterproof performance, and the wires transmit electrical energy separately. Socket No. 2 also adopts a fastening design and waterproof measures to ensure the stability and efficiency of the overall connection. Through the action of spring No. 2 163, support rod 161 pushes hook 122 to a position where elasticity is not lost. When unlocking is required, the unlocking tool 3 is provided with an inclined slope, so that the unlocking tool 3 is inserted to push open hook 122, and support rod 161 slides along the slope of hook 122, thereby driving connecting rod 162 to make a circular motion along the hinge toward the side of slot 112, and stretching spring No. 3 165. A circular protrusion is provided on the bottom surface of slot 112, so that the friction between sliding rod 164 and the bottom surface is increased, and the sliding rod 164 makes a circular motion in the same direction along the hinge at a slower speed than connecting rod 162, and spring No. 3 165 stretches to accumulate elastic potential. The circular protrusion gradually decreases toward the side of the hook 122, and the friction between the sliding rod 164 and the bottom surface gradually decreases. When the elastic potential energy of the No. 3 spring 165 is large enough, the elastic potential energy is converted into kinetic energy, so that the sliding rod 164 makes a circular motion in the same direction along the hinge faster than the connecting rod 162, thereby accelerating the rotation of the connecting rod 162, and the support rod 161 quickly moves away from the hook 122, so that the unlocking tool 3 will no longer be affected by the force of the No. 2 spring 163 when unlocking. By stopping the rotation of the limit rod 166, the sliding rod 164 also stops rotating, so that the unlocking tool 3 will not be affected. By toggling the reset plate 168, the support rod 161 can be reset after unlocking, and continue to compensate for the elasticity of the hook 122.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0069] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A line-to-line self-locking photovoltaic connector, characterized in that: The connector comprises a No. 1 socket (1), a No. 2 socket (2) and an unlocking tool (3); the No. 1 socket (1) and the No. 2 socket (2) are connected, the No. 1 socket (1) and the unlocking tool (3) are slidably connected, and the No. 2 socket (2) and the unlocking tool (3) are slidably connected; The No. 1 socket (1) comprises a No. 1 shell (11), a No. 1 fixing member (12), a No. 1 plug pin (13), a crown spring (14), a No. 1 electric wire (15) and an elastic compensating member (16); the No. 1 shell (11) and the No. 1 fixing member (12) are fixedly connected, the No. 1 fixing member (12) and the No. 2 socket (2) are connected, the No. 1 fixing member (12) and the unlocking tool (3) are slidably connected, the No. 1 plug pin (13) and the No. 1 fixing member (12) are fixedly connected, the crown spring (14) and the No. 1 plug pin (13) are fixedly connected, the crown spring (14) and the No. 2 socket (2) are fixedly connected, the elastic compensating member (16) and the No. 1 shell (11) are connected, the elastic compensating member (16) and the No. 1 fixing member (12) are slidably connected, and the No. 1 electric wire (15) and the No. 1 plug pin (13) are fixedly connected; The No. 2 socket (2) comprises a No. 2 housing (21), a No. 2 fixing member (22), a No. 2 plug pin (23) and a No. 2 wire (24); The No. 1 fixing member (12) comprises a No. 1 shell (121), a hook (122), a No. 1 spring (123), a pressure plate (124), a flange platform (125), a No. 1 connecting buckle (126), a No. 1 clamping ring (127), a No. 1 waterproof ring (128) and a No. 2 waterproof ring (129); the No. 1 shell (121) and the hook (122) are fixedly connected; the hook (122) and the No. 2 fixing member (22) are snap-connected; the No. 1 shell (121) is provided with a mounting groove (1211); the No. 1 spring (123) is arranged in the mounting groove (1211); the pressure plate (124) and the No. 1 spring (123) are fixedly connected; the pressure plate (124) and the mounting groove (1211) are slidably connected; the pressure plate (124) and the No. 2 fixing member (22) are in frictional contact; the flange platform (125) and the No. 1 shell (121) are fixedly connected. The first shell (11) is provided with a first clamping block (111), the first shell (121) and the first connecting buckle (126) are fixedly connected, the first clamping block (111) and the first connecting buckle (126) are connected by clamping, the first shell (121) is provided with a first clamping groove (1212), the first clamping ring (127) is arranged on the first clamping groove (1212), and the first clamping ring (127) and the first The pin (13) is fixedly connected, the No. 1 shell (121) is provided with a No. 1 annular groove, the No. 1 waterproof ring (128) is sleeved on the No. 1 annular groove, the No. 1 waterproof ring (128) and the No. 2 fixing member (22) are tightly connected, the No. 1 shell (121) is provided with a No. 2 annular groove, the No. 2 waterproof ring (129) is sleeved on the No. 2 annular groove, and the No. 2 waterproof ring (129) and the No. 1 shell (11) are tightly connected.

2. The line-to-line self-locking photovoltaic connector according to claim 1, characterized in that: The No. 2 housing (21) and the No. 2 fixing member (22) are fixedly connected, the No. 2 fixing member (22) and the No. 1 fixing member (12) are fixedly connected, the No. 2 fixing member (22) and the No. 1 plug pin (13) are fixedly connected, the No. 2 fixing member (22) and the No. 2 plug pin (23) are fixedly connected, the No. 2 plug pin (23) and the crown spring (14) are fixedly connected, and the No. 2 wire (24) and the No. 2 plug pin (23) are fixedly connected.

3. The line-to-line self-locking photovoltaic connector according to claim 2, characterized in that: The first housing (11) is provided with a slot (112), the slot (112) is connected to the elastic compensation piece (16), the first housing (11) is provided with a lock hole, and the lock hole is slidably connected to the unlocking tool (3).

4. The line-to-line self-locking photovoltaic connector according to claim 3, characterized in that: The elastic compensating member (16) comprises a support rod (161), a connecting rod (162), a second spring (163), a sliding rod (164), a third spring (165), a limiting rod (166), a limiting frame (167) and a reset plate (168); the support rod (161) is in frictional contact with the hook (122); the connecting rod (162) and the support rod (161) are hingedly connected; the sliding rod (164) is arranged on the bottom surface of the slot (112); the second spring (163) and the support rod (161) are fixedly connected; the second spring (163) and the connecting rod (16 2) fixed connection, the sliding rod (164) and the connecting rod (162) are hingedly connected, the sliding rod (164) and the bottom surface of the slot (112) are slidably connected, the No. 3 spring (165) and the connecting rod (162) are fixedly connected, the No. 3 spring (165) and the sliding rod (164) are fixedly connected, the limit rod (166) is arranged on the bottom surface of the slot (112), the limit frame (167) is arranged on the bottom surface of the slot (112), the limit frame (167) and the sliding rod (164) are in frictional contact, and the reset plate (168) and the connecting rod (162) are fixedly connected.

5. The line-to-line self-locking photovoltaic connector according to claim 4, characterized in that: The bottom surface of the slot (112) is provided with a friction surface, the roughness of the friction surface gradually decreases from the sliding rod (164) to the hook (122) side, and the friction surface is in frictional contact with the sliding rod (164).

6. The line-to-line self-locking photovoltaic connector according to claim 5, characterized in that: The No. 2 fixing member (22) comprises a No. 2 shell (221), a No. 4 clamping block (222), a No. 2 connecting buckle (223), a No. 2 clamping ring (224) and a No. 3 waterproof ring (225); the No. 2 shell (221) is fixedly connected to the No. 2 shell (21); the No. 2 shell (221) is fixedly connected to the No. 1 clamping block (111); the No. 2 shell (21) is provided with a connecting hole; the No. 4 clamping block (222) is connected to the connecting hole by clamping; the No. 2 connecting buckle (223) is fixedly connected to the No. 2 shell (221); the No. 2 connecting buckle (224) is fixedly connected to the No. 2 shell (21); The second shell (221) is provided with a No. 2 snap-fit ​​groove (2211), the No. 2 snap-fit ​​ring (224) is arranged on the No. 2 snap-fit ​​groove (2211), the No. 2 snap-fit ​​ring (224) and the No. 2 plug pin (23) are fixedly connected, the No. 2 shell (221) is provided with a No. 3 annular groove, the No. 3 waterproof ring (225) is sleeved on the No. 3 annular groove, and the No. 3 waterproof ring (225) and the No. 2 shell (21) are firmly connected.

7. The line-to-line self-locking photovoltaic connector according to claim 6, characterized in that: A No. 2 clamping block (131) is disposed outside the No. 1 plug pin (13), and the No. 2 clamping block (131) is snap-connected to the No. 1 clamping ring (127). The No. 1 plug pin (13) is provided with a No. 1 through hole, and a plurality of No. 3 clamping blocks (132) are disposed in the No. 1 through hole. The No. 3 clamping blocks (132) are fixedly connected to the crown spring (14).

8. The line-to-line self-locking photovoltaic connector according to claim 7, characterized in that: A No. 5 clamping block (231) is disposed outside the No. 2 plug pin (23), and the No. 5 clamping block (231) is snap-connected to the No. 2 clamping ring (224).

9. The line-to-line self-locking photovoltaic connector according to claim 8, characterized in that: The unlocking tool (3) is H-shaped, and the unlocking tool (3) is provided with an inclined surface inclined towards one side of the hook (122).

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