A fuse-equipped in-line terminal

Abstract

The utility model provides a kind of straight-in type wiring terminal with fuse, including shell main body, conducting part and elastic sheet, shell main body is equipped with conducting part assembly cavity, wiring cavity and fuse assembly cavity, the side of conducting part is connected with the upper connecting leg of the upper side of fuse assembly cavity, the lower side of fuse assembly cavity is equipped with lower connecting leg, fuse assembly cavity is installed with the fuse being connected with upper connecting leg and lower connecting leg, the upper end of fuse assembly cavity is equipped with fuse loading hole, the upper end of fuse is stretched out from fuse loading hole and forms fuse operating part, the side of lower connecting leg is connected with the wiring part in wiring cavity, the lower end of wiring cavity is formed with the wire hole for wire to stretch out.Fuse is installed in the fuse mounting cavity of shell main body, and is connected with conducting part by upper connecting leg, and is connected with wiring part by lower connecting leg, so as to realize that fuse and wiring terminal are designed as integrated structure, small space is occupied, and assembly is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to a direct-insertion terminal block with a fuse. Background Technology

[0002] Direct-insertion terminal blocks are accessories used to achieve electrical connections. Because they do not require auxiliary tools during wiring, they are widely used in various fields. Fuses are current protectors whose core function is to provide overload and short-circuit protection through a melting mechanism. They are widely used in the protection of high and low voltage power distribution, transformers, capacitor banks, and other equipment. When direct-insertion terminal blocks are used in conjunction with fuses, the two are externally soldered together, which not only occupies a large space but also makes assembly very inconvenient. Summary of the Invention

[0003] The purpose of this utility model is to provide a direct-insertion terminal block with a fuse, which can solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A through-hole terminal block with a fuse includes a housing body, a conductive element, and a spring contact. The housing body has a conductive element assembly cavity, a wiring cavity located below the conductive element assembly cavity, and a fuse assembly cavity located on the same side as the conductive element assembly cavity and the wiring cavity. The spring contact and the conductive element are installed in the conductive element assembly cavity. The upper end of the conductive element assembly cavity has a insertion hole for inserting a wire and opposite to the spring contact. One side of the conductive element is connected to a positioning device. The fuse assembly cavity has an upper connecting foot on its upper side and a lower connecting foot on its lower side. A fuse connected to the upper and lower connecting feet is installed in the fuse assembly cavity. The upper end of the fuse assembly cavity has a fuse insertion hole for inserting the fuse. The upper end of the fuse extends out of the fuse insertion hole and forms a fuse operating part. A wiring component located in the wiring cavity is connected to one side of the lower connecting foot. The lower end of the wiring cavity has a wire outlet hole for the wire to extend out.

[0005] Preferably, the side openings of the conductive component assembly cavity, wiring cavity, and fuse assembly cavity are provided with a fixed cover plate covering the side openings of the conductive component assembly cavity and fuse assembly cavity, and a movable cover plate covering the side opening of the wiring cavity that can be opened.

[0006] Preferably, one side of the movable cover plate is connected to the fixed cover plate by a connecting piece, and one side of the movable cover plate can rotate relative to the fixed cover plate by the connecting piece. The other side of the movable cover plate is provided with a locking protrusion, and the outer shell body is provided with a locking groove opposite to the locking protrusion. The locking protrusion is inserted into the locking groove to realize the detachable connection between the movable cover plate and the outer shell body.

[0007] Preferably, the fuse has latches protruding on both sides of its middle section, and the upper connecting leg has an upper positioning hole for the fuse to pass through. The upper positioning hole has latch mounting holes on both sides for the latches to pass through. The back of the upper connecting leg has a locking groove that matches the latch on both sides of the upper positioning hole. The locking groove is offset from the latch mounting hole. After the latch passes through the latch mounting hole, it rotates a certain angle and is placed in the locking groove, thereby fixing the fuse to the upper connecting leg.

[0008] Preferably, the lower connecting foot is provided with a lower positioning hole for positioning the lower end of the fuse.

[0009] Preferably, the conductive element extends forward on both sides to form conductive element sidewalls, and the two conductive element sidewalls respectively rest on the two sidewalls of the conductive element assembly cavity. The conductive element assembly cavity has a spring piece assembly groove located below one of the conductive element sidewalls on the side near the fuse assembly cavity. The spring piece assembly groove opens upward. The conductive element has a support arm located above the spring piece assembly groove. The middle part of the spring piece is wrapped around the support arm. One side of the spring piece rests on one of the conductive element sidewalls, and its end is inserted into the spring piece assembly groove. The other end of the spring piece cooperates with the other conductive element sidewall to clamp the wire.

[0010] Preferably, the side wall between the conductive component assembly cavity and the fuse assembly cavity is provided with an upper wall groove for the conductive component to pass through, the other side wall of the fuse assembly cavity is provided with an upper retaining groove opposite to the upper wall groove for the upper connecting foot to be inserted, the side wall between the wiring cavity and the fuse assembly cavity is provided with a lower wall groove for the wiring component to pass through, and the other side wall of the fuse assembly cavity is provided with a lower retaining groove opposite to the lower wall groove for the lower connecting foot to be inserted.

[0011] Preferably, the outer shell body is provided with a button hole that communicates with the assembly cavity of the conductive component, and a wire take-up button is slidably installed in the button hole, with the lower end of the wire take-up button contacting the spring contact.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: with the above structure, the fuse is installed in the fuse mounting cavity of the main body of the housing, and is connected to the conductive component through the upper connecting foot, and connected to the wiring component through the lower connecting foot, thereby realizing the design of the fuse and the wiring terminal as an integrated structure, which occupies little space and is very convenient to assemble. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Figure 3 This is an exploded view of this utility model.

[0016] Figure 4 This is a perspective view of the outer shell of this utility model.

[0017] Figure 5 This is an assembly diagram of the conductive components, springs, wiring components, and fuses of this utility model.

[0018] Figure 6 This is an exploded view of the conductive component, spring, wiring component, and fuse of this utility model. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figures 1-6 As shown, this utility model provides a through-hole terminal block with a fuse, including a housing body 1, a conductive element 2, and a spring contact 3. The housing body 1 has a conductive element assembly cavity 4, a wiring cavity 5 located below the conductive element assembly cavity 4, and a fuse assembly cavity 6 located on the same side of the conductive element assembly cavity 4 and the wiring cavity 5. The spring contact 3 and the conductive element 2 are installed in the conductive element assembly cavity 4. The upper end of the conductive element assembly cavity 4 has a wire insertion hole 7 for inserting wires and opposite to the spring contact 3. One side of the conductive element 2 is connected to the fuse assembly cavity 6. The upper connecting foot 8 is located on the upper side of the fuse assembly cavity 6, and the lower connecting foot 9 is located on the lower side of the fuse assembly cavity 6. A fuse 10 connected to the upper connecting foot 8 and the lower connecting foot 9 is installed in the fuse assembly cavity 6. A fuse insertion hole 11 is provided at the upper end of the fuse assembly cavity 6 for the fuse 10 to be inserted. The upper end of the fuse 10 extends out from the fuse insertion hole 11 and forms a fuse operating part 12. A wiring component 13 located in the wiring cavity 5 is connected to one side of the lower connecting foot 9. A wire outlet hole 14 for the wire to extend is formed at the lower end of the wiring cavity 5.

[0021] In this invention, during installation, the spring 3 and the conductive element 2 are assembled together and placed into the conductive element assembly cavity 4. The upper connecting leg 8, connected to the conductive element 2, is inserted into the upper side of the fuse assembly cavity 6. Then, the wiring component 13 is installed in the wiring cavity 5. The wiring component 13 is used to connect internal wires, which can extend from the outlet hole 14. The lower connecting leg 9, connected to the wiring component 13, is inserted into the lower side of the fuse assembly cavity 6. Then, the fuse 10 is inserted into the fuse assembly cavity 6 through the fuse insertion hole 11, and the fuse 10 is connected to the upper connecting leg 8 and the lower connecting leg 9, thus completing the installation. In this way, the fuse 10 and the wiring terminal can be designed as an integrated structure, occupying little space and being very convenient to assemble. In use, the external wire can be directly inserted through the insertion hole 7. First, the spring 3 deforms, causing the spring 3 to separate from the conductive element 2. When the external wire is inserted into place, the external wire is clamped between the spring 3 and the conductive element 2 to fix the external wire.

[0022] Preferably, the conductive component assembly cavity 4, wiring cavity 5, and fuse assembly cavity 6 have side openings. The outer housing body 1 is equipped with a fixed cover plate 15 covering the side openings of the conductive component assembly cavity 4 and fuse assembly cavity 6, and a movable cover plate 16 covering the side opening of the wiring cavity 5 and being openable. Specifically, one side of the movable cover plate 16 is integrally connected to the fixed cover plate 15 via a connecting piece 17, and one side of the movable cover plate 16 can rotate relative to the fixed cover plate 15 via the connecting piece 17. The other side of the movable cover plate 16 is provided with a locking protrusion 18, and the outer housing body 1 is provided with a locking groove 19 opposite to the locking protrusion 18. The locking protrusion 18 is inserted into the locking groove 19 to achieve a detachable connection between the movable cover plate 16 and the outer housing body 1. The outer casing 1 has multiple connection holes, and the fixed cover 15 has multiple connecting posts corresponding to the connection holes. After the conductive component 2, upper connecting foot 8, spring 3, connector 13, and lower connecting foot 9 are installed into the corresponding conductive component assembly cavity 4, connector cavity 5, and fuse assembly cavity 6, the fixed cover 15 is closed. The connecting posts on the fixed cover 15 are inserted into the connection holes for fixation, thereby fixing the fixed cover 15 to the outer casing 1. Then, the locking protrusion 18 on the movable cover 16 is inserted into the locking groove 19 for fixation, thereby fixing the movable cover 16 to the outer casing 1. When the movable cover 16 is opened, it can be used alone to connect the internal wires to the connector 13. Closing the movable cover 16 can prevent the connector 13 from being exposed, effectively preventing electric shock.

[0023] Preferably, the fuse 10 has latches 20 protruding on both sides of its middle portion. The upper connecting leg 8 has an upper positioning hole 21 through which the fuse 10 passes. The upper positioning hole 21 has latch mounting holes 22 on both sides for the latches 20 to pass through. The back of the upper connecting leg 8 has a locking groove 23 on both sides of the upper positioning hole 21 that matches the latches 20. The locking groove 23 is offset from the latch mounting hole 22. After the latches 20 pass through the latch mounting hole 22, they rotate at a certain angle and are placed in the locking groove 23, thereby fixing the fuse 10 to the upper connecting leg 8. The lower connecting leg 9 has a lower positioning hole 24 for positioning the lower end of the fuse 10. When installing the fuse 10, insert the fuse 10 into the fuse mounting cavity 6 through the fuse insertion hole 11. The lower end of the fuse 10 first passes through the upper positioning hole 21 on the upper connecting foot 8, and then is positioned in the lower positioning hole 24 on the lower connecting foot 9. At the same time, the latch 20 in the middle of the fuse 10 passes through the latch mounting hole 22 of the upper positioning hole 21. Then rotate the fuse 10, and the latch 20 will rotate at a certain angle and be aligned with the locking groove 23. Then, the latch 20 is placed in the locking groove 23. Because the fuse 10 is equipped with a spring, pressure can be applied to the latch 20 to lock it in the locking groove 23, thus completing the installation of the fuse 10. The operation is very convenient.

[0024] Preferably, the conductive element 2 extends forward on both sides to form conductive element sidewalls. The two conductive element sidewalls respectively rest against the two sidewalls of the conductive element assembly cavity 4. A spring clip assembly groove 25 is provided on the side of the conductive element assembly cavity 4 near the fuse assembly cavity 6, located below one of the conductive element sidewalls. This spring clip assembly groove 25 opens upwards. A support arm 26 is provided on the conductive element 2 above the spring clip assembly groove 25. The middle part of the spring clip 3 surrounds the support arm 26. One side of the spring clip 3 rests against one of the conductive element sidewalls, and its end is inserted into the spring clip assembly groove 25. The other end of the spring clip 3 cooperates with the other conductive element sidewall to clamp the wire. Through the ingenious design of the two conductive element sidewalls, the support arm 26, and the spring clip assembly groove 25, the fixing structure of the spring clip is simple and convenient.

[0025] Preferably, the side wall between the conductive component assembly cavity 4 and the fuse assembly cavity 6 is provided with an upper wall groove 27 for the conductive component 2 to pass through. The other side wall of the fuse assembly cavity 6 is provided with an upper retaining groove 28 opposite to the upper wall groove 27 for the upper connecting leg 8 to be inserted. The side wall between the wiring cavity 5 and the fuse assembly cavity 6 is provided with a lower wall groove 29 for the wiring component 13 to pass through. The other side wall of the fuse assembly cavity 6 is provided with a lower retaining groove 30 opposite to the lower wall groove 29 for the lower connecting leg 9 to be inserted. Both ends of the upper connecting leg 8 are engaged in the upper wall groove 27 and the upper retaining groove 28, and both ends of the lower connecting leg 9 are engaged in the lower wall groove 29 and the lower retaining groove 30, thus achieving the installation and fixation of the upper connecting leg 8 and the lower connecting leg 9. The structure is simple and compact.

[0026] Preferably, the outer shell body 1 is provided with a button hole 31 that communicates with the conductive component assembly cavity 4. A wire take-up button 32 is slidably installed in the button hole 31. The lower end of the wire take-up button 32 contacts the spring 3. When the wire take-up button 32 is pressed down, the wire take-up button 32 pushes open the spring 3, and the wire can be taken out. The operation is convenient.

[0027] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A through-hole terminal block with a fuse, comprising a housing, a conductive element, and a spring contact, characterized in that: The outer casing has a conductive component assembly cavity, a wiring cavity located below the conductive component assembly cavity, and a fuse assembly cavity located on the same side as the conductive component assembly cavity and the wiring cavity. The spring and the conductive component are installed in the conductive component assembly cavity. The upper end of the conductive component assembly cavity has a wire insertion hole for inserting wires and opposite to the spring. One side of the conductive component is connected to an upper connecting foot located on the upper side of the fuse assembly cavity. The lower side of the fuse assembly cavity has a lower connecting foot. A fuse connected to the upper and lower connecting feet is installed in the fuse assembly cavity. The upper end of the fuse assembly cavity has a fuse insertion hole for inserting the fuse. The upper end of the fuse extends from the fuse insertion hole and forms a fuse operating part. One side of the lower connecting foot is connected to a wiring component located in the wiring cavity. The lower end of the wiring cavity forms a wire outlet hole for inserting wires.

2. The through-hole terminal block with fuse according to claim 1, characterized in that: The conductive component assembly cavity, wiring cavity, and fuse assembly cavity have side openings. The outer casing body is equipped with a fixed cover plate covering the side openings of the conductive component assembly cavity and fuse assembly cavity, and a movable cover plate covering the side opening of the wiring cavity that can be opened.

3. The through-hole terminal block with fuse according to claim 2, characterized in that: One side of the movable cover plate is connected to the fixed cover plate by a connecting piece, and one side of the movable cover plate can rotate relative to the fixed cover plate by the connecting piece. The other side of the movable cover plate is provided with a locking protrusion, and the outer shell body is provided with a locking groove opposite to the locking protrusion. The locking protrusion is inserted into the locking groove to realize the detachable connection between the movable cover plate and the outer shell body.

4. The through-hole terminal block with fuse according to any one of claims 1-3, characterized in that: The fuse has protruding latches on both sides of its middle section. The upper connecting leg has an upper positioning hole for the fuse to pass through. On both sides of the upper positioning hole are latch mounting holes for the latches to pass through. The back of the upper connecting leg has recessed locking grooves on both sides of the upper positioning hole that match the latches. The locking grooves are offset from the latch mounting holes. After the latch passes through the latch mounting holes, it rotates a certain angle and is placed in the locking grooves, thereby fixing the fuse to the upper connecting leg.

5. The through-hole terminal block with fuse according to claim 4, characterized in that: The lower connecting foot is provided with a lower positioning hole for positioning the lower end of the fuse.

6. The through-hole terminal block with fuse according to any one of claims 1-3, characterized in that: The conductive element extends forward on both sides to form conductive element sidewalls. The two conductive element sidewalls respectively rest on the two sidewalls of the conductive element assembly cavity. The conductive element assembly cavity has a spring piece assembly groove located below one of the conductive element sidewalls on the side near the fuse assembly cavity. The spring piece assembly groove opens upward. The conductive element has a support arm located above the spring piece assembly groove. The middle part of the spring piece is wrapped around the support arm. One side of the spring piece rests on one of the conductive element sidewalls, and its end is inserted into the spring piece assembly groove. The other end of the spring piece cooperates with the other conductive element sidewall to clamp the wire.

7. The through-hole terminal block with fuse according to any one of claims 1-3, characterized in that: The side wall between the conductive component assembly cavity and the fuse assembly cavity is provided with an upper wall groove for the conductive component to pass through. The other side wall of the fuse assembly cavity is provided with an upper retaining groove opposite to the upper wall groove for the upper connecting foot to be inserted. The side wall between the wiring cavity and the fuse assembly cavity is provided with a lower wall groove for the wiring component to pass through. The other side wall of the fuse assembly cavity is provided with a lower retaining groove opposite to the lower wall groove for the lower connecting foot to be inserted.

8. The through-hole terminal block with fuse according to any one of claims 1-3, characterized in that: The outer shell body is provided with a button hole that communicates with the assembly cavity of the conductive component. A wire take-up button is slidably installed in the button hole, and the lower end of the wire take-up button contacts the spring contact.

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