Fuse socket and fuse thereof

Abstract

According to the fuse socket provided by the utility model, through the modular design of the first socket, the second socket and the third socket, a user can freely combine different numbers of the first socket, the second socket and the third socket according to actual requirements, and then fuses with an adaptive number are inserted. Therefore, the requirements of different circuit protection schemes are met, and the flexibility of products is improved. When the fuse sockets are spliced, the T-shaped plugging columns are inserted into the T-shaped slots, and the strip-shaped plugging pieces are plugged into the plugging parts, so that splicing can be completed. Therefore, the fuse socket is simple in splicing and firm in connection, has high flexibility and adaptability, and effectively improves the reliability and maintenance efficiency of an electrical system. And thirdly, the utility model also provides a fuse which is tightly matched with the fuse socket, so that firm installation, safety and reliability are ensured, the fuse is easy to replace and maintain, and the use convenience and the practical value of the product are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, specifically to a fuse socket and its fuse. Background Technology

[0002] A fuse is an electrical device that breaks a circuit by melting a fusible element when the current exceeds a specified value, due to the heat generated by the fuse itself. Fuses are current protection devices that utilize this principle: after the current exceeds a specified value for a certain period, the heat generated by the fuse itself melts the fusible element, thus breaking the circuit. Fuses are widely used in high and low voltage power distribution systems, control systems, and electrical equipment as short-circuit and overcurrent protectors, and are one of the most commonly used protective devices.

[0003] Existing fuses have some shortcomings in use. Specifically, traditional fuses are mostly single, independent designs, lacking modular expansion connection structures. Users need to purchase specific fuse specifications in advance according to preset installation requirements. This makes it difficult to flexibly adjust the protection scheme in case of temporary changes in circuit load or sudden short circuits, resulting in low equipment maintenance efficiency. Therefore, it is necessary to provide a fuse that can be flexibly adjusted. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fuse socket and its fuse, which effectively improves the flexibility and ease of installation of fuses.

[0005] A fuse socket includes a first socket, a second socket, and a third socket. A T-shaped slot is provided on both sides of the first socket's insertion surface and a first insertion surface of the third socket. A long strip-shaped insertion portion is provided at the bottom of both the first socket's insertion surface and the third socket's first insertion surface. The insertion portion has an opening on both the spliced ​​side and the bottom side. A strip-shaped groove is recessed on the top surface and two opposite sides of the inner side of the insertion portion. A T-shaped insertion post is provided on both sides of the second socket's insertion surface and the third socket's second insertion surface. The T-shaped insertion post is covered with rubber. A strip-shaped insertion member protrudes from the bottom of both the second socket's insertion surface and the third socket's second insertion surface. A snap-fit ​​plate is connected to the end of the strip-shaped insertion member, and rubber is fitted onto the snap-fit ​​plate.

[0006] Preferably, the cross-sections of the first socket, the second socket, and the third socket are U-shaped, and the recessed square groove in the middle is a fuse receiving slot.

[0007] Preferably, the square groove in the middle of the first socket, the second socket, and the third socket are all provided with semi-square insertion holes. When the first socket, the second socket, and the third socket are spliced ​​together, the semi-square insertion holes form a complete square insertion hole.

[0008] Preferably, both ends of the first socket, the second socket, and the third socket are provided with receiving cavities. When the first socket, the second socket, and the third socket are spliced ​​together, the receiving cavities are aligned to accommodate the wiring terminals.

[0009] Furthermore, the first and second plug surfaces are recessed inward along their length to form a receiving space. When the first, second, and third sockets are spliced ​​together, the receiving space is aligned to accommodate a busbar, which is connected to the terminal block.

[0010] Preferably, the first socket and the third socket have elastic retractable balls on the sidewalls of their receiving slots, and the fuse has a semi-circular groove on the sidewalls of its housing that is adapted to the elastic retractable balls.

[0011] Preferably, threaded holes are provided on both sides of the first socket and the third socket, and the threaded holes are aligned when the first socket, the second socket and the third socket are spliced ​​together.

[0012] A fuse, which is plugged into the fuse socket.

[0013] Preferably, the fuse includes a housing, a fuse wire disposed within the housing, and two pins, one end of each pin being connected to the fuse wire, and the other end of each pin protruding from the housing.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model provides a fuse socket with a modular design of a first socket, a second socket, and a third socket. This allows users to freely combine different numbers of these sockets according to actual needs, thereby inserting a suitable number of fuses to meet the requirements of different circuit protection schemes and improving product flexibility. When the fuse socket is assembled, the T-shaped plugs on both sides are inserted into the T-shaped slots from the bottom side. The rubber covering on the T-shaped plugs ensures that they are securely installed in the T-shaped slots, preventing loosening due to vibration or external force. As the T-shaped connector is continuously inserted upwards into the T-shaped slot, the strip connector enters the connector from the opening on one side of the bottom of the connector. As the T-shaped connector rises, the strip connector also rises and engages with the connector. When the T-shaped connector is fully inserted into the T-shaped slot, the strip connector is fully inserted into the connector. At this point, the retaining plate at the end of the strip connector engages with the strip groove of the connector. The rubber at the retaining plate ensures a tight connection between the retaining plate and the strip groove, thus completing the splicing. Therefore, this fuse socket is simple to assemble, has a strong connection, and possesses high flexibility and adaptability, effectively improving the reliability and maintenance efficiency of the electrical system.

[0016] Furthermore, this utility model also provides a fuse that fits tightly with the fuse socket, ensuring secure and reliable installation, and is easy to replace and maintain, greatly improving the convenience of use and the practical value of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an assembly structure of the fuse socket described in this utility model;

[0018] Figure 2 This is a schematic diagram showing the disassembled structure of the fuse socket described in this utility model;

[0019] Figure 3 This is a top-view structural diagram of the disassembled fuse socket of this utility model;

[0020] Figure 4 This is a schematic diagram of a fuse.

[0021] in:

[0022] 10-First socket, 20-Second socket, 30-Third socket, 11-T-shaped slot, 12-Plug-in part, 13-T-shaped plug-in post, 14-Strip plug-in piece, 15-Snap-in plate, 16-Semi-square plug-in hole, 17-Receiving cavity, 18-Receiving space, 40-Outer shell, 41-Pin. Detailed Implementation

[0023] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] See Figures 1-3 A fuse socket includes a first socket 10, a second socket 20, and a third socket 30. A T-shaped slot 11 is provided on both sides of the insertion surface of the first socket 10 and a first insertion surface of the third socket 30. A long strip-shaped insertion portion 12 is provided at the bottom of both the insertion surface of the first socket 10 and the first insertion surface of the third socket 30. The insertion portion 12 has an opening on both the spliced ​​side and the bottom side. A strip-shaped groove is recessed on the top surface and two opposite sides of the inner side of the insertion portion 12. A T-shaped insertion post 13 is provided on both sides of the insertion surface of the second socket 20 and the second insertion surface of the third socket 30. The T-shaped insertion post 13 is covered with rubber. A strip-shaped insertion member 14 protrudes from the bottom of both the insertion surface of the second socket 20 and the second insertion surface of the third socket 30. A snap-fit ​​plate 15 is connected to the end of the strip-shaped insertion member 14, and the snap-fit ​​plate 15 is covered with rubber.

[0025] It should be noted that when one fuse needs to be plugged in, only one first socket 10 and one second socket 20 need to be connected to form a fuse socket. When two fuses need to be plugged in, only one first socket 10, one second socket 20 and one third socket 30 need to be connected to form a fuse socket. Each time an additional fuse is added, one more third socket 30 is added. When connecting the fuses, one or more third sockets 30 are connected in the middle, and the first socket 10 and the second socket 20 are arranged on both sides.

[0026] Preferably, the cross-sections of the first socket 10, the second socket 20, and the third socket 30 are U-shaped, with the central recessed square groove serving as a fuse receiving slot. Preferably, each of the first socket 10, the second socket 20, and the third socket 30 has a semi-square insertion hole 16 in the central square groove. When the first socket 10, the second socket 20, and the third socket 30 are joined together, the semi-square insertion holes 16 form a complete square insertion hole. This square insertion hole is used for the two pins 41 of the fuse to be inserted, enabling the fuse to be stably connected to the circuit and achieving reliable electrical contact.

[0027] Preferably, both ends of the first socket 10, the second socket 20, and the third socket 30 are provided with receiving cavities 17. When the first socket 10, the second socket 20, and the third socket 30 are spliced ​​together, the receiving cavities 17 are aligned to accommodate the wiring terminals. Further, the first and second plug-in surfaces are recessed inward along their length direction to form a receiving space 18. When the first socket, the second socket 20, and the third socket 30 are spliced ​​together, the receiving space 18 is aligned to accommodate a busbar, which is connected to the wiring terminals. This modular splicing design facilitates the disassembly and replacement of individual parts. During maintenance and repair, there is no need for overall replacement, significantly improving maintenance efficiency, reducing operating costs, and enhancing system reliability and service life.

[0028] Preferably, the sidewalls of the receiving slots of the first socket 10 and the third socket 30 are provided with elastic retractable balls, and the sidewall of the fuse housing 40 is provided with a semi-circular groove adapted to the elastic retractable balls. Providing elastic retractable balls on the sidewalls of the receiving slots of the first socket 10 and the third socket 30 allows them to apply appropriate clamping force when the fuse is inserted, effectively improving the fixing stability of the fuse and preventing loosening or poor contact due to vibration or external forces, thereby improving the safety and reliability of the circuit system. The elastic retractable ball includes a telescopic seat, a telescopic spring, and a ball. The telescopic seat includes a telescopic hole, the bottom of which is connected to the telescopic spring, and the other end of which is connected to the ball. The ball protrudes from the hole of the telescopic seat. When the ball retracts into the telescopic seat, the telescopic spring is compressed; when the ball protrudes from the telescopic seat, the telescopic spring returns to its original position.

[0029] Preferably, threaded holes are provided on both sides of the first socket 10 and the third socket 30, and the threaded holes are aligned when the first socket, the second socket 20 and the third socket 30 are spliced ​​together. The addition of threaded holes can achieve splicing reinforcement by inserting bolts, further improving the overall stability and shock resistance of the fuse socket, avoiding loosening or separation due to long-term use or external impact, thereby ensuring the reliability of the circuit system.

[0030] This utility model provides a fuse socket with a modular design of a first socket 10, a second socket 20, and a third socket 30. This allows users to freely combine different numbers of these sockets according to actual needs, thereby inserting a suitable number of fuses to meet the requirements of different circuit protection schemes and improving product flexibility. When the fuse socket is assembled, the T-shaped insertion posts 13 on both sides are inserted into the T-shaped slots 11 from the bottom side. Simultaneously, the rubber covering the T-shaped insertion posts 13 ensures that they are securely installed in the T-shaped slots 11, preventing loosening due to vibration or external force. As the T-shaped plug 13 is continuously inserted upward into the T-shaped slot 11, the strip-shaped plug 14 enters the plug part 12 from the opening on one side of the bottom of the plug part 12. As the T-shaped plug 13 rises, the strip-shaped plug 14 also rises and gets into the plug part 12. When the T-shaped plug 13 is fully inserted into the T-shaped slot 11, the strip-shaped plug 14 is fully inserted into the plug part 12. At this time, the snap-fit ​​plate 15 provided at the end of the strip-shaped plug 14 snaps into the strip groove of the plug part 12. The rubber at the snap-fit ​​plate 15 ensures that the snap-fit ​​plate 15 and the strip groove are tightly connected, and the splicing is completed.

[0031] Therefore, this fuse socket ensures the stability of the splicing and the convenience of operation, giving it high reliability during installation and use. Specifically, the T-shaped plug 13 plays a key role in precise positioning and stable connection during the splicing process. When the T-shaped plug 13 is inserted into the T-shaped slot 11, its rubber coating not only enhances the splicing friction but also effectively absorbs external impacts, preventing loosening caused by vibration or current surges, thus ensuring the long-term stability and safety of the fuse socket. Secondly, the strip-shaped plug 14 further enhances the splicing strength and structural stability. During the splicing process, the strip-shaped plug 14 enters from the opening at the bottom of the plug part 12 and is simultaneously embedded into the plug part 12 as the T-shaped plug 13 moves upward. The strip groove inside the plug part 12 cooperates with the strip-shaped plug 14, making the spliced ​​structure more compact and avoiding problems such as loosening or displacement. Meanwhile, the snap-fit ​​plate 15 provided at the end of the strip connector 14 can be precisely snapped into the strip groove of the connector 12 after full insertion, and the connection is further enhanced by the elastic expansion of the rubber material.

[0032] See Figure 4This embodiment also provides a fuse that can be stably plugged into the fuse socket to ensure the reliability and safety of circuit protection. The fuse includes a housing 40 made of high-strength, high-temperature resistant insulating material to effectively prevent the external environment from affecting the internal components of the fuse, while improving its durability and safety. Inside the housing 40 is a fuse wire for quickly melting and cutting off the circuit in case of abnormal overload or short circuit, preventing damage to electrical equipment or safety accidents. The two ends of the fuse wire are respectively connected to two pins 41 made of highly conductive material to reduce contact resistance and improve current transmission efficiency. One end of each pin 41 is connected to the fuse wire to ensure the stability of current transmission, while the other end protrudes from the housing 40 for insertion into a square socket inside the fuse socket, achieving quick connection to the circuit.

[0033] Furthermore, to improve insertion stability, the fuse housing 40 has a semi-circular groove on its side wall that adapts to the elastic retractable ball bearing inside the fuse socket. This design allows the fuse to engage with the ball bearing when inserted into the socket, securing it firmly and effectively preventing loosening or detachment due to vibration or external impact. Simultaneously, this engagement method makes fuse installation and removal more convenient, allowing users to easily replace fuses and improving maintenance efficiency.

[0034] The present invention also provides a fuse that fits tightly with the fuse socket, ensuring secure and reliable installation, and is easy to replace and maintain, greatly improving the convenience of use and the practical value of the product.

[0035] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fuse holder characterized by: It includes a first socket, a second socket, and a third socket. Both sides of the first socket's insertion surface and the third socket's first insertion surface are provided with a T-shaped slot. The bottom of both the first socket's insertion surface and the third socket's first insertion surface is provided with a long strip-shaped insertion portion. The insertion portion has an opening on both the spliced ​​side and the bottom side. The top surface and two opposite sides of the inner side of the insertion portion are recessed with strip-shaped grooves. Both sides of the second socket's insertion surface and the third socket's second insertion surface are provided with a T-shaped insertion post, which is covered with rubber. The bottom of both the second socket's insertion surface and the third socket's second insertion surface is provided with a protruding strip-shaped insertion member. A snap-fit ​​plate is connected to the end of the strip-shaped insertion member, and rubber is fitted onto the snap-fit ​​plate.

2. The fuse holder of claim 1, wherein The cross-sections of the first socket, the second socket, and the third socket are U-shaped, with the square groove in the middle serving as a fuse receiving slot.

3. The fuse holder of claim 2, wherein The first socket, the second socket, and the third socket each have a semi-square insertion hole on the square groove in the middle. When the first socket, the second socket, and the third socket are spliced ​​together, the semi-square insertion holes form a complete square insertion hole.

4. The fuse holder of claim 2, wherein the first and second arms are each formed from a single piece of material. Both ends of the first socket, the second socket, and the third socket are provided with receiving cavities. When the first socket, the second socket, and the third socket are spliced ​​together, the receiving cavities are aligned to accommodate the wiring terminals.

5. The fuse holder of claim 4, wherein the first and second arms are each formed from a single piece of material. The first and second plug surfaces are recessed inward along their length to form a receiving space. When the first, second, and third sockets are spliced ​​together, the receiving space is aligned to accommodate a busbar, which is connected to the terminal block.

6. The fuse holder of claim 1, wherein The first socket and the third socket have elastic retractable balls on their receiving slots, and the fuse has a semi-circular groove on its outer casing that is adapted to the elastic retractable balls.

7. The fuse holder of claim 1, wherein The first socket and the third socket are also provided with threaded holes on both sides, and the threaded holes are aligned when the first socket, the second socket and the third socket are spliced ​​together.

8. A fuse, characterized in that Its plug-in is provided on the fuse socket as described in any one of claims 1-7.

9. The fuse of claim 8, wherein, The fuse includes a housing, a fuse wire disposed within the housing, and two pins. One end of each pin is connected to the fuse wire, and the other end of each pin protrudes from the housing.

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