CN218498016U

CN218498016U - Fuse protector

Info

Publication number: CN218498016U
Application number: CN202222326356.7U
Authority: CN
Inventors: 陈争; 王辉; 蒯圣礼
Original assignee: Liyuan Power Equipment Joint Stocks Co ltd
Current assignee: Liyuan Power Equipment Joint Stocks Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-02-17
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a fuse, include: the safety fuse comprises a mounting seat, a fuse wire, a fixing component, a sliding component, a firing pin seat, a microswitch connected with the alarm and used for starting the alarm, the fixing component and the firing pin seat are all fixedly mounted on the mounting seat, one end of the fuse wire is fixedly connected with the fixing component, the other end of the fuse wire is fixedly connected with the sliding component, the sliding component is movably mounted on the firing pin seat and can slide along the length direction of the fuse wire relative to the firing pin seat, the tail part of the firing pin is fixed on one side, far away from the fuse wire, of the sliding component, the microswitch is mounted on the firing pin seat and close to the head part of the firing pin, a first blocking surface perpendicular to the length direction of the fuse wire is arranged on the firing pin seat, a second blocking surface perpendicular to the length direction of the fuse wire is arranged on the firing pin, and a spring is mounted between the first blocking surface and the second blocking surface. The capacitor can give an alarm in time after the circuit is disconnected, the influence caused by power failure is reduced to the minimum, the operation is simple, the replacement cost is low, and the safety of the electric equipment is effectively improved.

Description

Fuse protector

Technical Field

The utility model relates to a circuit protection equipment technical field especially relates to a fuse.

Background

The fuse is a circuit protection component which opens a circuit by melting a fuse wire with heat generated by the fuse wire after a current exceeds a predetermined value for a certain period of time.

Based on the fuse that exists at present still mostly makes the fuse receive the thermal link back when circuit overload, if do not have the regular maintenance of patrolling and examining, the maintenance personal can't know the condition very first time, can not in time maintain the change to trouble department, has influenced the normal use of consumer, leads to the function disappearance that the part is used for gathering voltage signal consumer even.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a fuse.

The utility model provides a fuse, include: the safety fuse comprises a mounting seat, a fuse wire, a fixing component, a sliding component, a striker seat and a microswitch connected with the alarm and used for starting the alarm, wherein the fixing component and the striker seat are fixedly mounted on the mounting seat, one end of the fuse wire is fixedly connected with the fixing component, the other end of the fuse wire is fixedly connected with the sliding component, the sliding component is movably mounted on the striker seat and can slide relative to the striker seat along the length direction of the fuse wire, the tail part of the striker is fixed on one side, far away from the fuse wire, of the sliding component, the microswitch is mounted on the striker seat and close to the head part of the striker, a first blocking surface perpendicular to the length direction of the fuse wire is arranged on the striker seat, a second blocking surface perpendicular to the length direction of the fuse wire is arranged on the striker, and in the length direction of the fuse wire, the tail part of the striker, the first blocking surface, the second blocking surface and the head part of the striker are sequentially arranged, and a spring is mounted between the first blocking surface and the second blocking surface.

Preferably, the spring is in a compressed state when one end of the fuse is fixedly connected between the fixed component and the sliding component and in a stretched state.

Preferably, the fixing assembly comprises in particular: fixed block and first bolt of fixed mounting on the mount pad have seted up first cell body on the fixed block, and first cell body arranges along the length direction of fuse, and first cell body bottom has first electrode piece, and first bolt passes through the screw hole of the first cell body of screw in intercommunication and compresses tightly fuse one end on first electrode piece, and the slip subassembly specifically includes: the sliding block is slidably mounted on the firing pin seat, a second groove body is formed in the sliding block and arranged along the length direction of the fuse wire, a second electrode plate is arranged at the bottom of the second groove body, and the other end of the fuse wire is tightly pressed on the second electrode plate through a threaded hole which is screwed in and communicated with the second groove body by the second bolt.

Preferably, the plunger seat is provided with a third blocking surface perpendicular to the length direction of the fuse wire, the sliding assembly is provided with a fourth blocking surface perpendicular to the length direction of the fuse wire, the third blocking surface, the fourth blocking surface and the striker are sequentially arranged along the length direction of the fuse wire, when the third blocking surface abuts against the fourth blocking surface, the spring is in a compressed state, and the fuse wire fixedly connected between the fixing assembly and the sliding assembly is in a stretched state.

Preferably, the sliding assembly is provided with a fifth blocking surface perpendicular to the length direction of the fuse, the striker base is provided with a sixth blocking surface perpendicular to the length direction of the fuse, the fifth blocking surface, the sixth blocking surface and the striker are sequentially arranged along the length direction of the fuse, and when the sliding assembly drives the striker to slide to the striker head along the length direction of the fuse to trigger the microswitch, the fifth blocking surface abuts against the sixth blocking surface.

Preferably, a first accommodating cavity is formed in the striker seat, and the third blocking surface and the sixth blocking surface both belong to a part of cavity walls of the first accommodating cavity.

Preferably, the sliding block has a first annular protrusion thereon, and the fourth and fifth blocking surfaces are part of an outer wall of the first annular protrusion, and the first annular protrusion is disposed in the first accommodating cavity.

Preferably, the striker seat is provided with a second accommodating cavity therein, the first blocking surface is a part of the wall of the second accommodating cavity, the striker is provided with a second annular protrusion, the second blocking surface is a part of the outer wall of the second annular protrusion, and the second annular protrusion is located in the second accommodating cavity.

Preferably, the first accommodation chamber, the first annular projection, the second accommodation chamber, and the second annular projection are all arranged coaxially with the fuse.

Preferably, the first accommodating cavity, the second accommodating cavity and the microswitch are sequentially arranged along the length direction of the fuse.

The utility model discloses in, through the fixed subassembly of fuse one end fixed connection, other end fixed connection slip subassembly, slip subassembly movable mounting just can slide for hitting the needle file along the length direction of fuse on hitting the needle file, the firing pin afterbody is fixed and is kept away from fuse one side on the slip subassembly, micro-gap switch installs on hitting the needle file and is close to and hits syringe needle head, hit the first face that blocks that has perpendicular to fuse length direction on the needle file, the second that has perpendicular to fuse length direction on the firing pin blocks the face, first face and the second that blocks and installs the spring between the face. After the fuse takes place to fuse, under spring elastic's effect, the inside sliding subassembly of fuse drives the firing pin and can produces the displacement, and the firing pin head touches micro-gap switch and forms the striking action, forms the action and produces the signal contact through micro-gap switch, and micro-gap switch starts the alarm rather than being connected through this signal contact and reports to the police, can let the maintenance personal know the condition very first time to in time maintain the change to the fault department, make the normal use of consumer, effectively reduce the loss. The capacitor can give an alarm in time after the circuit is disconnected, the influence caused by power failure is reduced to the minimum, the operation is simple, the replacement cost is low, and the safety of the electric equipment is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of a fuse according to the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of fig. 1 at B.

Detailed Description

Referring to fig. 1-3, the present invention provides a fuse, including: the fuse protector comprises a mounting seat 1, a fuse 2, a fixing component 3, a sliding component 4, a striker 5, a striker seat 6 and a microswitch 7 which is connected with the alarm and used for starting the alarm, wherein the fixing component 3 and the striker seat 6 are both fixedly mounted on the mounting seat 1, one end of the fuse 2 is fixedly connected with the fixing component 3, the other end of the fuse 2 is fixedly connected with the sliding component 4, the sliding component 4 is movably mounted on the striker seat 6 and can slide along the length direction of the fuse 2 relative to the striker seat 6, the tail part of the striker 5 is fixed on one side, far away from the fuse 2, of the sliding component 4, the microswitch 7 is mounted on the striker seat 6 and is close to the head part of the striker 5, the striker seat 6 is provided with a first blocking surface 61 perpendicular to the length direction of the fuse 2, the striker 5 is provided with a second blocking surface 121 perpendicular to the length direction of the fuse 2, the tail part of the striker 5, the first blocking surface 61, the second blocking surface 121 and the head part of the striker 5 are sequentially arranged in the length direction of the fuse 2, and a spring 8 is mounted between the first blocking surface 61 and the second blocking surface 121.

According to the above, the utility model discloses a fuse is provided with firing pin 5 and is connected and be used for starting micro-gap switch 7 of alarm with the alarm, after the fuse takes place to fuse, under spring 8 elastic effect, the inside sliding assembly 4 of fuse drives firing pin 5 and produces the displacement, firing pin 5 head touches micro-gap switch 7 and forms the striking action, form the action and produce signal contact through micro-gap switch 7, micro-gap switch 7 starts the alarm rather than being connected through this signal contact and reports to the police, can let the maintenance personal know the condition very first time, and in time maintain the change to the fault department, make the normal use of consumer, effectively reduce the loss, thereby the influence that brings the outage is dropped to minimumly, and easy operation, the replacement cost is low, effectively improve the security of consumer.

In this embodiment, when one end of the fuse 2 is fixedly connected between the fixing component 3 and the sliding component 4 and is in a stretched state, the spring 8 is in a compressed state, and when the fuse is fused, the compressed spring 8 can effectively generate enough force to the striker 5 to push the striker 5 to generate displacement, so as to further trigger the microswitch 7 to form an impact action and generate a signal contact to start the alarm to give an alarm.

In a particular embodiment, the fixing assembly 3 comprises in particular: fixed block 31 and first bolt 32 of fixed mounting on mount pad 1 have seted up first cell body 33 on the fixed block 31, and first cell body 33 arranges along the length direction of fuse 2, and first cell body 33 bottom has first electrode piece 34, and first bolt 32 compresses tightly fuse 2 one end on first electrode piece 34 through the screw hole of the first cell body 33 of screw in intercommunication, and sliding assembly 4 specifically includes: the sliding block 41 and the second bolt 42 are slidably mounted on the striker base 6, a second groove 43 is formed in the sliding block 41, the second groove 43 is arranged along the length direction of the fuse wire 2, a second electrode plate 44 is arranged at the bottom of the second groove 43, and the second bolt 42 presses the other end of the fuse wire 2 onto the second electrode plate 44 by screwing in a threaded hole communicated with the second groove 43. Through the action of the first bolt 32 and the second bolt 42, the two ends of the fuse wire 2 are respectively in electric contact with the first electrode plate 34 and the second electrode plate 44, and the matching is firmer and more stable and is not easy to loosen. In addition, through installing bolt and having seted up the cell body on fixed subassembly 31 and sliding assembly 41, can effectively improve maintenance personal and change fuse 2, can only realize recycling of fuse under the condition of changing fuse 2 not changing other parts, can effectively avoid the material extravagant, reduce cost to easy operation effectively improves handling efficiency.

In a further embodiment, the striker base 6 has a third stop surface 62 and a sixth stop surface 63 perpendicular to the length direction of the fuse 2, and the sliding member 4 has a fourth stop surface 111 and a fifth stop surface 112 perpendicular to the length direction of the fuse 2; the third blocking face 62, the fourth blocking face 111, the fifth blocking face 112, the sixth blocking face 63, and the striker 5 are sequentially arranged in the length direction of the fuse 2. When the third stopping surface 62 abuts against the fourth stopping surface 111, the spring 8 is in a compressed state, and the fuse 2 fixedly connected between the fixed component 3 and the sliding component 4 is in a stretched state; when the sliding assembly 4 drives the striker 5 to slide to the head of the striker 5 along the length direction of the fuse 2 to trigger the microswitch 7, the fifth blocking surface 112 abuts against the sixth blocking surface 63; after the fuse is fused, the compressed spring 8 can provide enough force to push the striker 5 to generate displacement to trigger the microswitch 7 to form impact action and generate a signal contact to start the alarm to give an alarm, so that the normal working efficiency of the fuse protection electric equipment is effectively improved.

In a further specific embodiment, the striker seat 6 has a first accommodating cavity 9 therein, and the third blocking surface 62 and the sixth blocking surface 63 are part of the cavity wall of the first accommodating cavity 9; the sliding block 41 has a first annular protrusion 11 thereon, and the fourth and

fifth blocking surfaces

111 and 112 are part of the outer wall of the first annular protrusion 11, and the first annular protrusion 11 is disposed in the first accommodating cavity 9. The cooperation between the first accommodating cavity 9 and the first annular protruding part 11 can effectively limit the sliding range of the sliding component 4 for driving the striker 5 to slide in the striker seat 6, and the stability of the overall structure of the fuse is improved.

In a further specific embodiment, the striker seat 6 has a second accommodating cavity 10 therein, the first blocking surface 61 is a part of the cavity wall of the second accommodating cavity 10, and the second accommodating cavity 10 not only provides a moving space for the striker 5 to displace, but also facilitates the installation of the spring 8 between the first blocking surface 61 and the second blocking surface 121, and facilitates the detachment and replacement of the spring 8; the striker 5 has a second annular projection 12 thereon, the second blocking surface 121 being part of the outer wall of the second annular projection 12, the second annular projection 12 providing support for the compression spring 8.

In this embodiment, the first accommodating cavity 9, the first annular protrusion 11, the second accommodating cavity 10, and the second annular protrusion 12 are all arranged coaxially with the fuse 2, and the first accommodating cavity 9, the second accommodating cavity 10, and the microswitch 7 are arranged in sequence along the length direction of the fuse 2; the stability that the sliding component 4 drives the striker 5 to generate displacement to trigger the microswitch 7 can be effectively improved, and the deviation is reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A fuse, comprising: the fuse wire starting device comprises a mounting seat (1), a fuse wire (2), a fixing component (3), a sliding component (4), a firing pin (5), a firing pin seat (6) and a microswitch (7) which is connected with the alarm and used for starting the alarm, wherein the fixing component (3) and the firing pin seat (6) are fixedly mounted on the mounting seat (1), one end of the fuse wire (2) is fixedly connected with the fixing component (3), the other end of the fuse wire (2) is fixedly connected with the sliding component (4), the sliding component (4) is movably mounted on the firing pin seat (6) and can slide along the length direction of the fuse wire (2) relative to the firing pin seat (6), the tail of the firing pin (5) is fixed on one side, far away from the fuse wire (2), of the microswitch (7) is mounted on the firing pin seat (6) and is close to the head of the firing pin (5), a first blocking surface (61) perpendicular to the length direction of the fuse wire (2) is arranged on the firing pin seat (6), a second blocking surface (121) perpendicular to the length direction of the fuse wire (2) is arranged on the firing pin (5), in the length direction of the fuse (2), the tail part of the striker (5), the first blocking surface (61), the second blocking surface (121) and the head part of the striker (5) are sequentially arranged, and a spring (8) is arranged between the first blocking surface (61) and the second blocking surface (121).

2. A fuse as per claim 1, characterised in that the spring (8) is in a compressed state when the fuse wire (2) is fixedly connected at one end between the fixed member (3) and the sliding member (4) and in a straightened state.

3. A fuse as per claim 2, characterised in that the fixing assembly (3) comprises in particular: fixed block (31) and first bolt (32) of fixed mounting on mount pad (1), first cell body (33) have been seted up on fixed block (31), the length direction of fuse (2) is arranged along first cell body (33), first cell body (33) bottom has first electrode piece (34), first bolt (32) compress tightly fuse (2) one end on first electrode piece (34) through the screw hole of the first cell body of screw in intercommunication (33), sliding assembly (4) specifically include: the sliding block (41) and the second bolt (42) are slidably mounted on the plunger seat (6), a second groove body (43) is formed in the sliding block (41), the second groove body (43) is arranged along the length direction of the fuse wire (2), a second electrode plate (44) is arranged at the bottom of the second groove body (43), and the second bolt (42) tightly presses the other end of the fuse wire (2) onto the second electrode plate (44) through a threaded hole which is screwed into the second groove body (43).

4. A fuse as per claim 3, characterised in that the striker holder (6) has a third stop face (62) perpendicular to the length of the fuse (2), the slider (4) has a fourth stop face (111) perpendicular to the length of the fuse (2), the third stop face (62), the fourth stop face (111) and the striker (5) are arranged in sequence along the length of the fuse (2), when the third stop face (62) abuts against the fourth stop face (111), the spring (8) is in a compressed state and the fuse (2) fixedly connected between the fixed assembly (3) and the slider (4) is in a stretched state.

5. A fuse as per claim 4, characterized in that the sliding assembly (4) has a fifth blocking surface (112) perpendicular to the length direction of the fuse (2), the striker holder (6) has a sixth blocking surface (63) perpendicular to the length direction of the fuse (2), the fifth blocking surface (112), the sixth blocking surface (63) and the striker (5) are arranged in sequence along the length direction of the fuse (2), and when the sliding assembly (4) drives the striker (5) to slide to the head of the striker (5) along the length direction of the fuse (2) to actuate the switch (7) by micro motion, the fifth blocking surface (112) will abut against the sixth blocking surface (63).

6. A fuse as per claim 5, characterised in that the striker holder (6) has a first housing (9) inside, and the third blocking surface (62) and the sixth blocking surface (63) are part of the walls of the first housing (9).

7. A fuse as per claim 6, characterised in that the sliding block (41) has a first annular projection (11) on it, the fourth (111) and fifth (112) stop faces belonging to a part of the outer wall of the first annular projection (11), the first annular projection (11) being arranged in the first housing cavity (9).

8. A fuse as per claim 7, characterised in that the housing (6) has a second housing (10) therein, the first blocking surface (61) is part of the wall of the second housing (10), the striker (5) has a second annular projection (12) thereon, the second blocking surface (121) is part of the outer wall of the second annular projection (12), and the second annular projection (12) is located in the second housing (10).

9. A fuse as per claim 8, characterised in that the first housing chamber (9), the first annular projection (11), the second housing chamber (10), the second annular projection (12) are all arranged coaxially to the fuse wire (2).

10. A fuse as per claim 9, characterised in that the first housing chamber (9), the second housing chamber (10), the microswitch (7) are arranged in succession along the length of the fuse (2).