CN214898318U - Fusing indicating device of circular tube fuse - Google Patents
Fusing indicating device of circular tube fuse Download PDFInfo
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- CN214898318U CN214898318U CN202121401313.XU CN202121401313U CN214898318U CN 214898318 U CN214898318 U CN 214898318U CN 202121401313 U CN202121401313 U CN 202121401313U CN 214898318 U CN214898318 U CN 214898318U
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Abstract
The utility model discloses a fusing indicating device of pipe fuse, including wire, instruction grain, elastomeric element and mount pad subassembly, mount pad subassembly and pipe fuse interference fit, the inside installation cavity that is equipped with of mount pad subassembly, mount pad subassembly are equipped with the connecting hole and stretch out the hole, instruct grain and elastomeric element and all locate the installation intracavity, elastomeric element locates and instructs between grain and the connecting hole, it is equipped with straining hole and extension to instruct the grain, the extension corresponds the setting with stretching out the hole, the wire passes the straining hole and parallelly connected with the inside fuse-element of fuse. The utility model discloses a set up fusing indicating device for indicating device receives environmental impact less, can not appear becoming flexible or droing because of the micro-vibration.
Description
Technical Field
The utility model belongs to the industrial electrical apparatus field, concretely relates to pipe fuse's fusing indicating device.
Background
The fuse is an electrical element which is fused by self-heating when the current in the circuit exceeds a specified value and overload or short-circuit current passes through the melt, thereby breaking the circuit. The fuse is used as an electrical element for guaranteeing the safe operation of the circuit and is widely applied to frequency converters and control systems. The indicating particles play an important role in the fuse, signals are sent out for the breaking of the fuse, and whether the fuse breaks or not and whether a circuit is abnormal or not can be judged by observing whether the indicating particles bounce or not. The existing round tube fuse has the structure that the position and the installation form of the fusing indicating device are limited, if the fusing indicating device is not installed properly or is installed in a vibration environment, the fusing indicating device is easy to loosen or fall off, and further the indicating performance is unreliable. When the circuit is normal, the indication particle malfunctions; when the circuit is abnormal, the fuse is broken, the indicating particle does not act, the indicating particle cannot correctly present a signal of the circuit abnormality, and a user cannot correctly judge whether the circuit is abnormal or not, so that potential safety hazards and economic loss are brought to the user.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fusing indicating device of pipe fuse, through the improvement to the structure for the fusing indicating device of this fuse utilizes the elastic component telescopic characteristic for elastic component is taut with the elastic component, avoids the influence of surrounding environment factor to fusing indicating device.
In order to solve the above problems existing in the prior art, the utility model discloses the technical scheme who adopts is:
a fusing indication device of a round tube fuse comprises a metal wire, an indication particle, an elastic component and a mounting seat component.
The mounting base component is in interference fit with the round tube fuse, a mounting cavity is arranged inside the mounting base component, and the mounting base component is provided with a connecting hole and an extending hole.
Indicate grain and elastomeric element and all locate the installation intracavity, elastomeric element locates and indicates between grain and the connecting hole, it is equipped with tensioning hole and extension to indicate the grain, the extension corresponds the setting with the hole that stretches out.
The pipe fuse is equipped with the connection chamber, the connection intracavity is located to the wire, and the wire passes the tensioning hole and parallelly connected with the inside fuse-element of fuse.
Through setting up fusing indicating device for indicating device receives environmental impact less, can not appear becoming flexible or droing because of little vibration.
Further, the mount pad subassembly includes switch seat and instruction grain seat, be interference fit between switch seat and the instruction grain seat, the switch seat is equipped with and stretches out the hole, instruct the grain seat to be equipped with the connecting hole, connect the switch seat with instruct the grain seat through interference fit for the stability of switch seat and instruction grain seat is high.
Furthermore, the elastic component is a spring, the spring is in a compressed state, one end of the spring abuts against the indicating particle seat, the other end of the spring abuts against the indicating particle, and through the arrangement of the spring, after the metal wire is gasified, the spring pushes the indicating particle to move through elasticity.
Furthermore, instruct the grain still includes spacing portion, spacing portion is located in the tensioning hole, works as during the wire gasification, the extension stretches out from stretching out the hole, and spacing portion butt in switch seat through setting up spacing portion and extension, can make to instruct a grain part to stretch out from stretching out the hole, can also avoid instructing the grain and drop.
Further, the pipe fuse is equipped with the connection chamber, the wire is located and is connected the intracavity, and the wire passes the tensioning hole and parallelly connected with the inside fuse-element of fuse, makes the wire pass the tensioning hole and strains to the instruction grain. The elastic component is positioned in the indicating particle seat, when the fuse is not disconnected, the elastic component is in a compressed state, and the fuse is in a released state after being disconnected; the indicating particles are positioned in the indicating particle seat, are arranged on the elastic part, and are pulled tightly by the metal wire to enable the elastic part to be in a compressed state.
Furthermore, the elastic component is released, and due to the difference of the installation environment of the fuse, after the fuse is disconnected, the elastic component is released and presents a signal of circuit abnormity in different modes. In whole working process, this fusing indicating device can lead to fusing to instruct not hard up or drop because of the vibration with fuse zonulae occludens, has indicating switch's fuse, but triggers indicating switch after the instruction grain pops out, sends signal to control circuit. The control loop and the main circuit are not affected with each other, and only send out the abnormal signal of the circuit to the user.
Furthermore, a microswitch can be arranged above the elastic component or on the switch seat, the round tube fuse is a fuse arranged in a static environment, and the switch seat is in interference fit with the round tube fuse.
Furthermore, one end of the metal wire is connected with the upper conductive terminal, the other end of the metal wire is connected with the lower conductive terminal, the metal wire is connected with the internal melt in parallel, when the circuit is normal, the resistance on the internal melt is in the milliohm level, the resistance on the metal wire connected with the internal melt in parallel is in the ohm level, and current passes through the internal melt. When the fuse encounters fault current, the fuse is broken, the metal wire tensioning the elastic component is gasified due to the fault current, and due to the difference of installation environments of the fuse, after the fuse is broken, the elastic component is released and presents a signal of circuit abnormity in different modes. In the whole working process, the fusing indication device can be tightly connected with the fuse, and fusing indication looseness or dropping caused by vibration can be avoided.
The utility model has the advantages that: the indicating particle seat in the indicating device is directly connected with the fuse and the switch seat after being pressed and assembled. When the fuse provided with the fuse indicating device is installed in some equipment with vibration, the fuse indicating device cannot be loosened due to vibration, and the indication is safe and reliable. By adopting elastic indication, when the circuit is in fault in a static environment, the fuse is broken, the indicating particles are released, the microswitch is pushed to send signals to the outside, and the circuit fault can be found in time.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a first schematic view of the present invention;
fig. 4 is a second schematic view of the present invention.
1-upper conductive terminal; 2-lower conductive terminal; 3-an elastic member; 4-a switch base; 5-an indicator particle; 51-a limiting part; 52-an extension; 6-indicating particle seat; 7-internal melt; 8-a metal wire; 9-connecting hole; 10-a connecting cavity; 11-tensioning the hole.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and reference numerals.
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Example 1:
as shown in fig. 1 to 4, a circular tube fuse fusing indication apparatus includes a wire 8, an indicating particle 5, an elastic member 3, and a mounting socket assembly.
The mounting base component is in interference fit with the round tube fuse, a mounting cavity is arranged inside the mounting base component, and the mounting base component is provided with a connecting hole 9 and a stretching hole.
The indicating particle 5 and the elastic component 3 are both arranged in the installation cavity, the elastic component 3 is arranged between the indicating particle 5 and the connecting hole 9, the indicating particle 5 is provided with a tensioning hole 11 and a protruding part 52, and the protruding part 52 corresponds to the protruding hole.
The wire 8 is arranged in the mounting device, and the wire 8 passes through the tension hole 11 and is connected with the internal melt 7 of the fuse in parallel.
Through setting up fusing indicating device for indicating device receives environmental impact less, can not appear becoming flexible or droing because of little vibration.
Example 2:
as shown in fig. 1 to 4, a circular tube fuse fusing indication apparatus includes a wire 8, an indicating particle 5, an elastic member 3, and a mounting socket assembly.
The mounting base component is in interference fit with the round tube fuse, a mounting cavity is arranged inside the mounting base component, and the mounting base component is provided with a connecting hole 9 and a stretching hole.
The indicating particle 5 and the elastic component 3 are both arranged in the installation cavity, the elastic component 3 is arranged between the indicating particle 5 and the connecting hole 9, the indicating particle 5 is provided with a tensioning hole 11 and a protruding part 52, and the protruding part 52 corresponds to the protruding hole.
The metal wire 8 is arranged in a connecting cavity 10 of the fuse, the metal wire 8 penetrates through the tensioning hole 11 and is connected with the internal melt 7 of the fuse in parallel, and the metal wire 8 penetrates through the tensioning hole 11 to strain the indicating particles 5.
Through setting up fusing indicating device for indicating device receives environmental impact less, can not appear becoming flexible or droing because of little vibration.
The mounting base assembly comprises a switch base 4 and an indicating particle base 6, wherein the switch base 4 and the indicating particle base 6 are in interference fit, the switch base 4 is provided with an extending hole, and the indicating particle base 6 is provided with a connecting hole 9.
Connect switch block 4 and instruction grain seat 6 through interference fit for switch block 4 and the stability of instructing grain seat 6 are high.
The elastic part 3 is a spring which is in a compressed state, one end of the spring is abutted against the indicating particle seat 6, and the other end of the spring is abutted against the indicating particle 5.
By arranging the spring, after the metal wire 8 is gasified, the spring pushes the indicating granule 5 to move through elasticity.
The indicating particle 5 further comprises a limiting portion 51, the tensioning hole 11 is formed in the limiting portion 51, when the metal wire 8 is gasified, the extending portion 52 extends out of the extending hole, and the limiting portion 51 abuts against the switch base 4.
By providing the limiting portion 51 and the protruding portion 52, the indicating piece 5 can partially protrude from the protruding hole, and the indicating piece 5 can be prevented from falling off.
The pipe fuse is equipped with and connects chamber 10, wire 8 is located and is connected the intracavity 10.
The elastic component 3 is positioned in the indicating particle seat 6, when the fuse is not disconnected, the elastic component 3 is in a compressed state, and the fuse is in a released state after being disconnected; the indicating pellet 5 is located in the indicating pellet seat 6, is arranged on the elastic part 3, and is pulled tightly by the metal wire 8 to enable the elastic part 3 to be in a compressed state.
The elastic component 3 is released, and due to different installation environments of the fuse, after the fuse is disconnected, the elastic component 3 is released and presents a signal of circuit abnormity in different modes. In the whole working process, the fusing indication device can be tightly connected with the fuse, and fusing indication looseness or dropping caused by vibration can be avoided.
And the fuse with the indicating switch can trigger the indicating switch after the indicating particles 5 are popped out, and sends a signal to the control loop. The control loop and the main circuit are not affected with each other, and only send out the abnormal signal of the circuit to the user.
A microswitch can be arranged above the elastic component 3 or on the switch seat 4.
The circular tube fuse is a fuse installed in a static environment.
The switch seat 4 is in interference fit with the circular tube fuse.
One end of the metal wire 8 is connected to the upper conductive terminal 1, and the other end of the metal wire 8 is connected to the lower conductive terminal 2.
The metal wire 8 is connected with the inner melt 7 in parallel, when the circuit is normal, the resistance on the inner melt 7 is in the milliohm level, the resistance on the metal wire 8 connected with the inner melt 7 in parallel is in the ohm level, and current passes through the inner melt 7. When the fuse encounters a fault current, the fuse is broken, and the wire 8 tensioning the elastic member 3 is gasified by the fault current.
Due to the difference of the installation environment of the fuse, after the fuse is disconnected, the elastic component 3 is released and presents a signal of circuit abnormality in different modes. In the whole working process, the fusing indication device can be tightly connected with the fuse, and fusing indication looseness or dropping caused by vibration can be avoided.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (5)
1. The utility model provides a fusing indicating device of pipe fuse which characterized in that: comprises a metal wire (8), an indicating particle (5), an elastic component (3) and a mounting seat component;
the mounting base assembly is in interference fit with the round tube fuse, a mounting cavity is arranged in the mounting base assembly, and the mounting base assembly is provided with a connecting hole (9) and an extending hole;
the indicating particle (5) and the elastic component (3) are arranged in the mounting cavity, the elastic component (3) is arranged between the indicating particle (5) and the connecting hole (9), the indicating particle (5) is provided with a tensioning hole (11) and a protruding part (52), and the protruding part (52) and the protruding hole are correspondingly arranged;
the wire (8) passes through the tension hole (11) and is connected in parallel with the internal melt (7) of the fuse.
2. A blow indication device of a round tube fuse as defined in claim 1, wherein: the mounting base assembly comprises a switch base (4) and an indicating particle base (6), wherein the switch base (4) and the indicating particle base (6) are in interference fit, the switch base (4) is provided with an extending hole, and the indicating particle base (6) is provided with a connecting hole (9).
3. A blow indication device of a round tube fuse as defined in claim 2, wherein: the elastic part (3) is a spring, the spring is in a compressed state, one end of the spring is abutted against the indicating particle seat (6), and the other end of the spring is abutted against the indicating particle (5).
4. A blow indication device of a round tube fuse as defined in claim 1, wherein: the indicating particle (5) further comprises a limiting part (51), and the tensioning hole (11) is formed in the limiting part (51).
5. A blow indication device of a round tube fuse as defined in claim 2, wherein: the switch base (4) is in interference fit with the round tube fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121401313.XU CN214898318U (en) | 2021-06-23 | 2021-06-23 | Fusing indicating device of circular tube fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121401313.XU CN214898318U (en) | 2021-06-23 | 2021-06-23 | Fusing indicating device of circular tube fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214898318U true CN214898318U (en) | 2021-11-26 |
Family
ID=78929799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121401313.XU Active CN214898318U (en) | 2021-06-23 | 2021-06-23 | Fusing indicating device of circular tube fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214898318U (en) |
-
2021
- 2021-06-23 CN CN202121401313.XU patent/CN214898318U/en active Active
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