CN219457511U - Direct-current 24V shunt release for fire-fighting module - Google Patents
Direct-current 24V shunt release for fire-fighting module Download PDFInfo
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- CN219457511U CN219457511U CN202320428836.6U CN202320428836U CN219457511U CN 219457511 U CN219457511 U CN 219457511U CN 202320428836 U CN202320428836 U CN 202320428836U CN 219457511 U CN219457511 U CN 219457511U
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- shunt release
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- release
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Abstract
The utility model belongs to the technical field of switches, and particularly discloses a direct-current 24V shunt release for a fire-fighting module, which comprises a plastic shell with an internal accommodating cavity, wherein a magnetic flux transducer and a micro switch are arranged in the internal accommodating cavity, the direct-current 24V shunt release also comprises an L-shaped transmission rod and an I-shaped release pressure rod, wherein the L-shaped transmission rod is used for connecting the magnetic flux transducer and the micro switch; when the I-type tripping pressure lever is in the tripping position, the state of the micro switch is converted into an on point, at the moment, the coil of the magnetic flux converter is powered off, and when the I-type tripping pressure lever is in the resetting position, the state of the micro switch is restored to a closed point, and the power on of the coil of the magnetic flux converter is turned on. The tripping action device of the shunt release is powered by the magnetic flux converter, and has the advantages of large tripping force, large voltage action range, reliable action and strong anti-interference performance.
Description
Technical Field
The utility model belongs to the technical field of switches, and particularly relates to a direct-current 24V shunt release for a fire-fighting module.
Background
Along with the rapid development of economic construction in China, the electricity consumption of production and life is greatly increased, but the electric energy brings great convenience to production and life and also leaves a plurality of potential safety hazards, and at present, the fire disaster caused by electric faults becomes an important factor for threatening the safety of people in production and life, so that the fire protection standards are met, the electric safety is ensured, the potential fire hazard is reduced, and the direct-current 24V shunt release is used as an auxiliary electrical appliance requiring high safety and high reliability and is increasingly widely applied.
At present, in the industry, a direct-current 24V shunt release is mainly applied to fire protection, plays a role of remotely controlling a circuit breaker, and the voltage action range of the direct-current 24V shunt release is 70% -110% of the power supply voltage Us of a control circuit. In the practical application process, the factors causing the failure of the direct-current 24V shunt release are as follows: working current, working voltage, power, wire sectional area, wire length (distance), working condition (ambient temperature), matching condition of shunt release installation, and the like. The main reasons of the bad actions are that the actual input power at the two ends of the shunt release is lower due to the overlong lead wire, so that the release coil does not act, and the requirements on the power of the power supply are stricter; if the intermediate relay is used for switching and driving Us230V or other shunt release with higher voltage, the material input cost is increased.
Disclosure of Invention
In view of the above, in order to solve the above technical problems, the utility model provides a direct current 24V shunt release for a fire module direct drive molded case circuit breaker, wherein the release action device is powered by a magnetic flux converter, and has the advantages of large release force, large voltage action range, reliable action and strong anti-interference performance. The mechanical connecting rod structure is adopted, the action is reliable, the structure is simple, and the cost is low.
The technical scheme adopted by the utility model is as follows:
a direct current 24V shunt release for a fire module, comprising:
the plastic shell is provided with an internal accommodating cavity and is used for accommodating the magnetic flux transducer, the micro switch, the L-shaped transmission rod, the I-shaped tripping compression bar and the like;
the magnetic flux converter is positioned in the inner accommodating cavity, comprises an armature, a permanent magnet and a coil, and comprises an ejector rod capable of being ejected, and a reset pressure spring is sleeved outside the ejector rod;
a micro switch, which is positioned in the internal accommodating cavity and is used for controlling the magnetic flux converter to switch on and off current;
the L-shaped transmission rod is provided with a bending end at the middle part, the bending end is axially connected in the plastic shell, one end of the L-shaped transmission rod is abutted with the ejector rod, an inward reset abutting force is formed on the ejector rod, the other end of the L-shaped transmission rod is supported below an I-shaped tripping compression rod, the middle part of the I-shaped tripping compression rod is elastically axially connected in the plastic shell, and the upper part of the I-shaped tripping compression rod is coupled with the micro switch;
when the I-type tripping pressure lever is in a tripping position, the state of the micro switch is converted into an opening point, at the moment, the coil of the magnetic flux converter is powered off, and when the I-type tripping pressure lever is in a resetting position, the state of the micro switch is restored to a closing point, and the power on of the coil of the magnetic flux converter is conducted.
Optionally, the middle part of I type release depression bar pass through a torsional spring with plastics casing elasticity coupling, two stabilizer blades of torsional spring limit respectively are located plastics casing with I type release depression bar is last, for I type release depression bar is restoreed to reset position from the tripping position and is provided torsion.
Optionally, the direct current 24V shunt release for a fire module further comprises a rebuckling push plate located in the internal accommodating cavity, one end of the rebuckling push plate is axially connected in the plastic shell, the other end of the rebuckling push plate is abutted with the ejector rod, and an inward reset pressing force is formed on the ejector rod.
Optionally, a reset operation mechanism is arranged at the rear of the rebuckling push plate and can drive the rebuckling push plate to rotate around the shaft.
Optionally, the reset operation mechanism comprises an operation mechanism lever and a rotary pressing rod riveted on one side of the operation mechanism lever, and the rotary pressing rod is abutted to the rear of the rebuckling push plate.
Optionally, an arc-shaped groove part coupled with the rotary compression bar is arranged at the rear of the rebuckling push plate.
Optionally, the end surface of the rebuckling push plate, which is abutted with the ejector rod, is an arc-shaped convex surface.
Optionally, the direct-current 24V shunt release for the fire-fighting module further comprises a circuit board taking a freewheeling diode as a main component, and the circuit board is fixed in the plastic shell through two limiting posts.
Optionally, the freewheeling diode on the circuit board is connected in parallel to two ends of the coil of the magnetic flux converter, and after the coil loses electricity, the induced electromotive force generated by the coil is consumed by acting through a loop formed by the diode and the coil, so that the safety of other elements in the circuit is protected.
After the technical scheme is adopted, the utility model has the following technical progress effects:
the direct-current 24V shunt release device for the fire-fighting module can be directly driven by the fire-fighting module, has a large action voltage range, low requirements on power supply, large release force, high action reliability and simple structure. Not only can the material input cost be reduced, but also the advantages of strong anti-interference performance, long service life and the like are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the main structure of the present utility model when released;
FIG. 3 is a schematic diagram of the main structure of the present utility model for storing energy;
fig. 4 is a schematic diagram of a circuit board according to the present utility model.
In the figure:
1. a base plastic large cover; 2. an operating mechanism lever; 21. rotating the compression bar; 3. a circuit board; 4. a magnetic flux transformer; 5. then button the push plate; 6. a plastic housing; 7. an L-shaped transmission rod; 8. i-shaped tripping compression bar; 9. a micro-switch; 10. and (3) a torsion spring.
Detailed Description
In order to better understand the purpose, structure and function of the present utility model, a dc 24V shunt release for a fire module according to the present utility model is described in further detail below with reference to the accompanying drawings.
Referring to fig. 2 and 3, the direct-current 24V shunt release for a fire module provided in this embodiment includes a circuit board 3, a magnetic flux converter 4, a rebuckling push plate 5, a plastic housing 6, an L-shaped transmission rod 7, an I-shaped release pressure rod 8, a micro switch 9, and a torsion spring 10.
The circuit board 3 is fixed by two limit posts in a plastic shell 6 of the shunt release, and the main electronic device is a freewheeling diode;
the magnetic flux converter 4 comprises an energy storage spring, a reset pressure spring, a push rod, an armature, a permanent magnet and a coil;
the rebuckling push plate 5 is provided with a shaft structure end, is rotationally connected with the shell through a hole structure in the plastic shell 6 of the shunt release, and can freely rotate in the shell before the rebuckling push plate 5 reaches a limit position; the rebuckling push plate 5 is abutted with the ejector rod of the magnetic flux transducer 4, and the contact surface of the rebuckling push plate 5 is an arc surface, so that the stress point of the ejector rod is always near the axis of the rebuckling push plate 5 in the process of resetting the magnetic flux transducer 4;
the L-shaped transmission rod 7 is provided with an axle structure end, the axle structure end is positioned at a right-angle bend of the L shape, the axle structure end penetrates through a hole structure of the shunt release plastic shell 6 and can freely rotate, one end of the L-shaped transmission rod 7 is contacted with the I-shaped release pressure rod 8, the other end of the L-shaped transmission rod is contacted with the ejector rod of the magnetic flux converter 4, and under the torsion action of the torsion spring 10, the I-shaped release pressure rod 8 is pressed against one end (the lower end in fig. 2) of the L-shaped transmission rod 7, so that the other end (the upper end in fig. 2) of the L-shaped transmission rod is abutted against the ejector rod of the magnetic flux converter 4;
the I-shaped tripping compression bar 8 is also provided with a shaft structure end, penetrates through a hole structure of the plastic shell 6 of the shunt release, can freely rotate and is coupled with the micro switch 9, when the I-shaped tripping compression bar 8 is positioned at a tripping position, the state of the micro switch 9 is converted into an opening point, the coil of the magnetic flux converter 4 is powered off, and when the I-shaped tripping compression bar 8 is positioned at a resetting position, the state of the micro switch 9 is restored to a closing point;
the torsion spring 10 is fixed in the axle construction position of I type release depression bar 8, and two stabilizer blades of torsion spring 10 are spacing respectively on plastics casing 6 and I type release depression bar 8, and torsion of torsion spring 9 can make I type release depression bar 8 resume reset position from the release position.
In a further embodiment, as shown in fig. 1, in addition to the above structure, a base plastic large cover 1 is provided, an operating mechanism lever 2 is rotatably connected to the base plastic large cover 1, a rotary pressing rod 21 is riveted on one side of the operating mechanism lever 2, the rotary pressing rod 21 is located at the rear of the rebuckling push plate 5, the operating mechanism lever 2 is shifted, the rotary pressing rod 21 rotates along with the operating mechanism lever 2 and presses the rebuckling push plate 5, and the rebuckling push plate 5 pushes the magnetic flux converter 4 to store energy, so that the magnetic flux converter is converted from a trip state to a reset state. The I-shaped tripping compression bar 8 rotates from the tripping position to the resetting position under the torsion action of the torsion spring 10, and drives the L-shaped transmission bar 7 to rotate.
In a further embodiment, the freewheeling diode on the circuit board 3 is connected in parallel to two ends of the coil of the magnetic flux converter 4, and when the coil is deenergized, the induced electromotive force generated by the coil is consumed by acting through a loop formed by the diode and the coil, so that the safety of other elements in the circuit is protected.
In a further embodiment, after the magnetic flux converter 4 stores energy, when the magnetic flux converter 4 is excited by the direct current 24V, the magnetic flux converter 4 releases and pushes the rebuckling push plate 5,L type transmission rod to rotate 7 and lifts the I-type tripping compression rod 8,I type tripping compression rod 8 to press the movable arm of the micro-switch 9, so that the micro-switch 9 is normally closed to normally open.
The technical effects of the embodiment of the utility model are as follows:
the utility model does not change the external dimension and the installation position of the original shunt release shell, only changes the connecting rod structure, increases the magnetic flux converter and the circuit board, has large action voltage range, has low requirement on the power of the fire protection module power supply, has reliable action, greatly prolongs the service life and enhances the release force of the shunt release. Therefore, the utility model has the advantages of simple and compact structure, simple and convenient installation, low cost, strong anti-interference performance and reliable action.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. A direct current 24V shunt release for a fire module, comprising:
a plastic housing (6) having an interior receiving cavity;
the magnetic flux converter (4) is positioned in the inner accommodating cavity, comprises an armature, a permanent magnet and a coil, and comprises an ejector rod capable of being ejected, and a reset pressure spring is sleeved outside the ejector rod;
a microswitch (9) located in the internal housing cavity for controlling the flux transformer (4) to switch on and off current;
the L-shaped transmission rod (7) is provided with a bending end at the middle part, the bending end is axially connected in the plastic shell (6), one end of the L-shaped transmission rod is abutted against the ejector rod, an inward reset abutment pressure is formed on the ejector rod, the other end of the L-shaped transmission rod is supported below an I-shaped release pressing rod (8), the middle part of the I-shaped release pressing rod (8) is elastically and axially connected in the plastic shell (6), and the upper part of the I-shaped release pressing rod (8) is coupled with the micro switch (9);
when the I-type tripping pressure lever (8) is in a tripping position, the state of the micro switch (9) is converted into an on point, at the moment, the coil of the magnetic flux converter (4) is powered off, and when the I-type tripping pressure lever (8) is in a resetting position, the state of the micro switch (9) is restored to a closing point, and the power on of the coil of the magnetic flux converter (4) is conducted.
2. The direct current 24V shunt release for a fire module according to claim 1, wherein the middle part of the I-type trip plunger (8) is elastically hinged with the plastic housing (6) through a torsion spring, and two legs of the torsion spring are respectively limited on the plastic housing (6) and the I-type trip plunger (8) to provide torsion for restoring the I-type trip plunger (8) from a trip position to a reset position.
3. The direct current 24V shunt release for a fire module according to claim 1 or 2, further comprising a rebuckling push plate (5) located in the inner accommodation cavity, wherein one end of the rebuckling push plate (5) is pivoted in the plastic housing (6), and the other end is abutted with the ejector rod, so that an inward reset abutment force is formed on the ejector rod.
4. A direct current 24V shunt release for a fire module according to claim 3, wherein a reset operation mechanism is arranged behind the rebuckling push plate (5) and can drive the rebuckling push plate (5) to rotate around the shaft thereof.
5. The direct current 24V shunt release for a fire module according to claim 4, wherein the reset operation mechanism comprises an operation mechanism lever (2) and a rotary compression bar (21) riveted on one side of the operation mechanism lever (2), and the rotary compression bar (21) is abutted behind the rebuckling push plate (5).
6. The direct current 24V shunt release for a fire module according to claim 5, wherein an arc-shaped groove part coupled with the rotary compression bar (21) is arranged behind the rebuckling push plate (5).
7. The direct-current 24V shunt release for a fire module according to claim 3, wherein the end surface of the rebuckling push plate (5) abutted against the ejector rod is an arc-shaped convex surface.
8. The direct-current 24V shunt release for a fire module according to claim 1, further comprising a circuit board (3) composed of a freewheeling diode as a main component, wherein the circuit board (3) is fixed in the plastic housing (6) by two limit posts.
9. The direct-current 24V shunt release for a fire module according to claim 8, wherein a freewheeling diode on the circuit board (3) is connected in parallel with two ends of a coil of the magnetic flux converter (4), and when the coil is deenergized, induced electromotive force generated by the coil is consumed through work of a loop formed by the diode and the coil, so that safety of other elements in the circuit is protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320428836.6U CN219457511U (en) | 2023-03-09 | 2023-03-09 | Direct-current 24V shunt release for fire-fighting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320428836.6U CN219457511U (en) | 2023-03-09 | 2023-03-09 | Direct-current 24V shunt release for fire-fighting module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219457511U true CN219457511U (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320428836.6U Active CN219457511U (en) | 2023-03-09 | 2023-03-09 | Direct-current 24V shunt release for fire-fighting module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219457511U (en) |
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2023
- 2023-03-09 CN CN202320428836.6U patent/CN219457511U/en active Active
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