Replaceable fuse photovoltaic panel end connector

Abstract

The utility model discloses a photovoltaic panel end connector of replaceable fuse, including positive pole connector and negative pole connector, the positive pole connector and negative pole connector all include connector casing, connecting head, fuse and fixed cover, the fuse is installed in the connector shell, and one end of fuse is connected with fixed cover, the fixed cover is connected with the connecting head, the connecting head is connected with the connector casing, when the connecting head is separated from the connector casing, the connecting head drives fixed cover and fuse and pulls out from the connector casing. The utility model discloses photovoltaic panel end connector, can realize the quick disassembly replacement of fuse, and effectively prevented the situation of the electric shock of operator in the replacement process, improved the security and efficiency of photovoltaic system maintenance.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a photovoltaic panel end connector with a replaceable fuse. Background Technology

[0002] In photovoltaic (PV) power generation systems, fuses are crucial components for circuit protection, playing a vital role in preventing damage to equipment caused by circuit overloads, short circuits, and other faults. However, fuses are prone to damage during use for various reasons and require periodic replacement. Traditional PV panel connector designs present numerous inconveniences when replacing fuses. For example, the replacement operation is complex, requiring multiple tools and involving cumbersome steps, leading to low maintenance efficiency. More seriously, improper operation sequence during fuse replacement, such as disconnecting the fuse before disconnecting the connector, can leave the connector energized, increasing the risk of electric shock to operators and posing a significant hazard to the safe operation and maintenance of the PV system.

[0003] Therefore, there is a need to provide a photovoltaic panel connector with a replaceable fuse to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a photovoltaic panel end connector with replaceable fuses, which enables quick disassembly and replacement of fuses and effectively prevents electric shock to operators during the replacement process, thereby improving the safety and efficiency of photovoltaic system maintenance.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A photovoltaic panel connector with a replaceable fuse includes a positive connector and a negative connector. Both the positive and negative connectors include a connector housing, a connector head, a fuse, and a retaining sleeve. The fuse is installed inside the connector housing, and one end of the fuse is connected to the retaining sleeve. The retaining sleeve engages with the connector head, and the connector head is connected to the connector housing. When the connector head disengages from the connector housing, the connector head pulls the retaining sleeve and the fuse out of the connector housing.

[0006] As a further improvement to the above technical solution, the mounting end of the fixing sleeve is provided with multiple mounting springs, and the fuse is clamped between the multiple mounting springs.

[0007] As a further improvement to the above technical solution, the connector head is provided with a snap-fit ​​cylinder, and the connecting end of the fixing sleeve is provided with a right-angle snap-fit ​​groove. When the fixing sleeve is snapped into the connector head, the snap-fit ​​cylinder is snapped into the right-angle snap-fit ​​groove.

[0008] As a further improvement to the above technical solution, the side end of the connector head is provided with an elastic buckle extending outward, and the side end of the connector housing is provided with a connecting groove extending outward. When the connector head is connected to the connector housing, the elastic buckle is engaged in the connecting groove.

[0009] As a further improvement to the above technical solution, both the positive and negative connectors also include a protective cover. The side end of the connector is provided with a limiting protrusion, and the protective cover is provided with an elongated locking hole. The limiting protrusion slides up and down within the elongated locking hole.

[0010] As a further improvement to the above technical solution, the outer end of the limiting protrusion is provided with a positioning groove, and the outer end of the elongated card hole is provided with a locking block. When the limiting protrusion is located at the lowest end of the elongated card hole, the locking block is engaged in the positioning groove.

[0011] As a further improvement to the above technical solution, the positive connector and the negative connector are respectively provided with a negative terminal connector and a positive terminal connector. Both the negative terminal connector and the positive terminal connector are used to connect the connector to the photovoltaic panel. The connector head of the positive connector is a positive terminal connector, and the connector head of the negative connector is a negative terminal connector. The positive terminal connector and the negative terminal connector are connected to each other.

[0012] As a further improvement to the above technical solution, the photovoltaic panel connector includes a mounting plate and a mounting nut. The mounting plate is provided with a mounting hole, the connector housing is disposed in the mounting hole, and the mounting nut is used to lock the mounting plate between the connector housing and the mounting nut.

[0013] The beneficial effects of this utility model are: This invention employs a fixing sleeve that clamps the fuse by an interference fit between the mounting spring and the fuse surface. The fixing sleeve engages with the connector. When the fuse needs replacement, simply disassemble the positive and negative terminals; the fixing sleeve and fuse will be removed along with the connector. Operators can easily remove the damaged fuse and install a new one without complicated operations or additional tools, thus improving maintenance efficiency. Simultaneously, the connector is equipped with a protective cover with positioning and sliding functions, effectively preventing accidental operation and ensuring that fuse replacement is only performed under safe conditions. This solves the problems existing in traditional photovoltaic panel connectors during fuse replacement, improving the reliability and maintenance efficiency of the photovoltaic system. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the photovoltaic panel end connector of this utility model; Figure 2 This is an installation structure diagram of the fixing sleeve and connector of this utility model; Figure 3 This is an exploded structural diagram of the photovoltaic panel end connector of this utility model; Figure 4 This is a longitudinal sectional view of the photovoltaic panel end connector of this utility model; Figure 5 This is a cross-sectional view of the photovoltaic panel end connector of this utility model.

[0016] Reference numerals: 1. Positive connector; 11. Negative connector; 2. Negative connector; 21. Positive connector; 3. Connector housing; 4. Connector head; 401. Positive connector; 402. Negative connector; 41. Snap-fit ​​cylinder; 42. Elastic snap; 43. Limiting protrusion; 44. Positioning slot; 5. Fuse; 6. Fixing sleeve; 61. Mounting spring; 62. Right-angle slot; 7. Protective cover; 71. Long strip locking hole; 72. Locking block; 8. Mounting plate; 81. Mounting hole; 9. Mounting nut; 10. Mounting component. Detailed Implementation

[0017] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0018] Reference Figures 1 to 5A photovoltaic panel connector with replaceable fuses includes a positive connector 1 and a negative connector 2. While structurally and functionally similar, they are designed to be compatible with the characteristics of the positive and negative terminals respectively. Both the positive connector 1 and the negative connector 2 include a connector housing 3, a connector head 4, a fuse 5, and a retaining sleeve 6. The fuse 5, as the core component for circuit protection, is crucial in its installation and fixing method. One end of the fuse 5 is equipped with a matching mounting piece 10, which secures the fuse 5 within the connector housing 3, ensuring that it does not move or loosen during normal use, thus guaranteeing the reliability of circuit protection. The retaining sleeve 6 is connected to one end of the fuse 5, and the retaining sleeve 6 is connected to the connector head 4 via a snap-fit ​​connection. This ensures a stable connection between the retaining sleeve 6 and the connector head 4 and facilitates disassembly when the fuse needs to be replaced. The connector head 4 is connected to the connector housing 3, forming a complete connector structure. In actual use, when it is necessary to replace the fuse 5, simply disconnect the connector 4 from the connector housing 3. At this time, since the retaining sleeve 6 is engaged with the connector 4 and one end of the fuse 5 is connected to the retaining sleeve 6, the connector 4 will simultaneously pull the retaining sleeve 6 and the fuse 5 out of the connector housing 3 as it disconnects from the connector housing 3. This design makes the replacement of the fuse 5 simpler and faster, without the need for complicated tools and cumbersome operating steps, greatly improving maintenance efficiency.

[0019] Reference Figure 3 , Figure 5 In an embodiment of this utility model, the mounting end of the fixing sleeve 6 is provided with a plurality of mounting springs 61. When the fuse 5 is installed into the fixing sleeve 6, the fuse 5 is precisely clamped in the plurality of mounting springs 61. The mounting springs 61 generate a certain clamping force on the fuse 5 through their own elastic deformation, which ensures that the fuse 5 will not loosen or fall off due to vibration or external force during normal use, and will not cause excessive compression and damage to the fuse 5, thereby ensuring the reliability and stability of the connection between the fuse 5 and the fixing sleeve 6.

[0020] Reference Figure 2 , Figure 3In this embodiment of the present invention, the connector 4 is provided with a snap-fit ​​cylinder 41, and the connecting end of the fixing sleeve 6 is provided with a right-angle slot 62. The size and shape of the snap-fit ​​cylinder 41 are adapted to the structure of the right-angle slot 62. When the fixing sleeve 6 and the connector 4 are snapped together, the connecting end of the fixing sleeve 6 is aligned with the connector 4, so that the snap-fit ​​cylinder 41 is accurately snapped into the right-angle slot 62. This snap-fit ​​method has a simple structure and is easy to operate. Through the tight fit between the snap-fit ​​cylinder 41 and the right-angle slot 62, a stable connection between the fixing sleeve 6 and the connector 4 can be achieved. When disassembly is required, the two can be separated relatively easily, which facilitates the replacement of the fuse 5.

[0021] Reference Figure 3 , Figure 4 In this embodiment of the present invention, an elastic buckle 42 extends outward from the side end of the connector 4. The elastic buckle 42 has a certain elastic deformation capability, and can undergo elastic deformation when subjected to external force, and return to its original shape after the external force is removed. At the same time, a connecting groove 31 extends outward from the corresponding position on the side end of the connector housing 3. The shape and size of the connecting groove 31 match the elastic buckle 42. When the connector 4 is connected to the connector housing 3, the connector 4 is brought close to the connector housing 3, so that the elastic buckle 42 is squeezed by the side end of the connector housing 3 and undergoes elastic deformation. When the elastic buckle 42 moves to the position of the connecting groove 31, the elastic buckle 42 returns to its original shape and is locked in the connecting groove 31. Through the locking action of the elastic buckle 42 and the connecting groove 31, a stable connection between the connector 4 and the connector housing 3 can be achieved, effectively preventing the connector 4 from falling off the connector housing 3 during use, and ensuring the normal operation of the photovoltaic panel connector.

[0022] Reference Figure 3 In this embodiment of the present invention, both the positive connector 1 and the negative connector 2 further include a protective cover 7. The protective cover 7 is made of a material with certain strength and insulation properties, which can effectively isolate live parts and provide reliable safety protection for operators. The side end of the connector 4 is provided with a limiting protrusion 43, and the protective cover 7 is provided with an elongated locking hole 71. The width of the elongated locking hole 71 is adapted to the limiting protrusion 43. When the protective cover 7 is installed on the connector 4, the limiting protrusion 43 is disposed in the elongated locking hole 71, and the limiting protrusion 43 can slide up and down in the elongated locking hole 71, so that the protective cover 7 can move flexibly within a certain range, which will not affect the normal use of the connector and can play a protective role when needed.

[0023] Reference Figure 3In this embodiment of the present invention, the outer end of the limiting protrusion 43 is provided with a positioning groove 44, and the outer end of the elongated slot 71 is provided with a locking block 72. The locking block 72 has a certain elasticity and strength, and can undergo slight deformation when subjected to external force, and return to its original shape after the external force is removed. When the limiting protrusion 43 is located at the lowermost end of the elongated slot 71, the protective cover 7 is in a specific protective position. The locking block 72 will engage in the positioning groove 44. Through the engagement of the locking block 72 and the positioning groove 44, the protective cover 7 can be firmly fixed in this position, preventing the protective cover 7 from sliding downward due to vibration or other external forces during normal use, thereby ensuring that the protective cover 7 can continuously play a safe protective role and effectively improving the safety and reliability of the photovoltaic panel connector. Meanwhile, the interlocking clips of the wire end connector and the connector head are covered, making it impossible to pull out the wire end connector directly. The connection between the wire end connector and the photovoltaic panel must be separated first, and then the protective cover must be slid down to expose the interlocking clips. The wire end connector can only be pulled out by unlocking it with a tool. This design effectively prevents misoperation and ensures that operators can only perform fuse replacement operations under safe conditions.

[0024] Reference Figure 4 In this embodiment of the invention, the positive connector 1 and the negative connector 2 are respectively provided with a negative terminal connector 11 and a positive terminal connector 21. Both the negative terminal connector 11 and the positive terminal connector 21 bear the important task of connecting the connector to the photovoltaic panel. The design of the negative terminal connector 11 and the positive terminal connector 21 must fully consider the compatibility with the photovoltaic panel interface and the ease of connection. Specifically, the connector head of the positive connector 1 is a positive terminal connector 401, and the connector head of the negative connector 2 is a negative terminal connector 402. During the connection process, following specific electrical connection rules, the positive terminal connector 21 and the negative terminal connector 402 are precisely plugged in. This plugging connection method is simple to operate, provides a tight connection, and effectively ensures smooth current transmission. Simultaneously, the negative terminal connector 11 and the positive terminal connector 401 are also plugged in in the same way, making the entire electrical connection system more stable and reliable, and reducing the risk of failure due to improper connection.

[0025] Reference Figure 2 , Figure 3In this embodiment of the invention, the photovoltaic panel connector includes a mounting plate 8 and a mounting nut 9. The mounting plate 8 has a mounting hole 81, the size and shape of which are adapted to the connector housing 3, providing accurate positioning and support for the connector housing 3. During installation, the connector housing 3 is accurately positioned within the mounting hole 81, ensuring a tight fit between the connector housing 3 and the mounting hole 81, preventing the connector from shaking during use. Subsequently, the mounting nut 9 is used for tightening. The mounting nut 9 engages with the corresponding threaded structure on the connector housing 3, securely locking the mounting plate 8 between the connector housing 3 and the mounting nut 9. This installation method is simple in structure and convenient in operation, ensuring that the photovoltaic panel connector maintains a stable and reliable installation state under various complex working environments, providing strong support for the normal operation of the entire photovoltaic system.

[0026] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A photovoltaic panel connector with a replaceable fuse, characterized in that: The device includes a positive connector and a negative connector. Each positive connector and negative connector includes a connector housing, a connector head, a fuse, and a retaining sleeve. The fuse is installed inside the connector housing, and one end of the fuse is connected to the retaining sleeve. The retaining sleeve is engaged with the connector head, and the connector head is connected to the connector housing. When the connector head is disengaged from the connector housing, the connector head pulls the retaining sleeve and the fuse out of the connector housing.

2. The photovoltaic panel connector with a replaceable fuse according to claim 1, characterized in that: The mounting end of the fixing sleeve is provided with multiple mounting springs, and the fuse is clamped between the multiple mounting springs.

3. A photovoltaic panel connector with a replaceable fuse according to claim 1, characterized in that: The connector head is provided with a snap-fit ​​cylinder, and the connecting end of the fixing sleeve is provided with a right-angle snap-fit ​​groove. When the fixing sleeve is snapped into the connector head, the snap-fit ​​cylinder is snapped into the right-angle snap-fit ​​groove.

4. A photovoltaic panel connector with a replaceable fuse according to claim 1, characterized in that: The connector head has an outwardly extending elastic buckle on its side end, and the connector housing has an outwardly extending connecting groove on its side end. When the connector head is connected to the connector housing, the elastic buckle engages in the connecting groove.

5. A photovoltaic panel connector with a replaceable fuse according to claim 1, characterized in that: Both the positive and negative connectors include a protective cover. The side end of the connector is provided with a limiting protrusion. The protective cover is provided with an elongated locking hole. The limiting protrusion slides up and down within the elongated locking hole.

6. A photovoltaic panel connector with a replaceable fuse according to claim 5, characterized in that: The outer end of the limiting protrusion is provided with a positioning slot, and the outer end of the elongated slot is provided with a locking block. When the limiting protrusion is located at the lowest end of the elongated slot, the locking block is engaged in the positioning slot.

7. A photovoltaic panel connector with a replaceable fuse according to claim 1, characterized in that: The positive connector and the negative connector are respectively provided with a negative terminal connector and a positive terminal connector. Both the negative terminal connector and the positive terminal connector are used to connect the connector to the photovoltaic panel. The connector head of the positive connector is a positive terminal connector, and the connector head of the negative connector is a negative terminal connector. The positive terminal connector and the negative terminal connector are connected to each other.

8. A photovoltaic panel connector with a replaceable fuse according to claim 1, characterized in that: The photovoltaic panel connector includes a mounting plate and a mounting nut. The mounting plate has a mounting hole, and the connector housing is disposed in the mounting hole. The mounting nut is used to lock the mounting plate between the connector housing and the mounting nut.

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