CN220138221U - Overload alarm non-tripping accessory - Google Patents
Overload alarm non-tripping accessory Download PDFInfo
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- CN220138221U CN220138221U CN202321526400.7U CN202321526400U CN220138221U CN 220138221 U CN220138221 U CN 220138221U CN 202321526400 U CN202321526400 U CN 202321526400U CN 220138221 U CN220138221 U CN 220138221U
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- rotating rod
- welding wire
- wiring row
- overload
- shell
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- 238000003466 welding Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000012634 fragment Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses an overload alarm non-tripping accessory, which comprises: the shell is internally provided with a containing cavity, the containing cavity is internally provided with a non-tripping component, the non-tripping component comprises a micro switch, the micro switch is positioned in the containing cavity, a first welding line, a second welding line, a third welding line and an elastic sheet are arranged on the micro switch, the rotating mechanism comprises a rotating rod, the rotating rod is fixed on the inner wall of the guest shell through a mechanism shaft, one end of the rotating rod passes through the shell through a connecting shaft and then is matched with a bimetallic strip of a circuit breaker, and the other end of the rotating rod is matched with the elastic sheet of the micro switch. Compared with the prior art, the overload alarm non-tripping accessory can alarm the breaker in an overload state, and notify an operator on duty of knowing that a fault exists in a non-fire-fighting state, so that the fault is ensured not to be damaged in an expanding way.
Description
Technical Field
The utility model relates to the application of the technical field of small-sized circuit breaker fire protection, in particular to an overload alarm non-tripping accessory.
Background
The miniature circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently and protecting a power supply circuit and the like. The molded case circuit breaker with the overload alarm and non-tripping functions is mainly applied to a low-voltage power supply system and is mainly applied to special places such as fire protection, medical treatment, chemical industry, heavy industry and the like. When the overload condition occurs for a long time on the line, and the overload alarm signal can be sent out in time because the tripping condition is not allowed in the special working environment, the related personnel can pay attention to, and the related loss is avoided.
In fire-fighting systems, it is generally required that a molded case circuit breaker has an overload non-trip function, but with the trend of miniaturization of products, a single magnetic type miniature circuit breaker is produced. The single-magnetic miniature circuit breaker ensures the power supply of fire-fighting load in the fire-fighting emergency state, and can not trip due to fire and other conditions, thereby ensuring personnel safety. However, in a normal use state, the fire protection circuit may be overloaded due to various unexpected reasons, and the single-magnetic miniature circuit breaker has no overload protection function, so that the circuit is overloaded and damaged, and economic loss is caused.
In view of the above, the utility model needs to provide a single-magnet miniature circuit breaker accessory with simple structure and low cost and overload alarm function, which solves the problem that the operator on duty can not find the product under the overload condition, and further can avoid the possible economic loss when the fault occurs in the non-fire-fighting state.
Disclosure of Invention
The utility model aims to provide an overload alarm non-tripping accessory, so as to solve the technical problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an overload alert non-trip accessory comprising: the shell is internally provided with a containing cavity, a non-tripping component is arranged in the containing cavity, the non-tripping component comprises a micro switch, a first welding wire, a second welding wire, a third welding wire and an elastic piece are arranged on the micro switch, the first welding wire, the second welding wire and the third welding wire are positioned on the same side, and the elastic piece is positioned on one side far from the first welding wire, the second welding wire and the third welding wire and is positioned on the upper part of a micro switch button;
the rotating mechanism comprises a rotating rod, the rotating rod is fixed on the inner wall of the guest shell through a mechanism shaft, one end of the rotating guest rod passes through the shell through a connecting shaft and then is matched with a bimetallic strip of the circuit breaker, and the other end of the rotating rod is matched with an elastic sheet of the micro switch;
the wiring row assembly comprises an upper wiring row, a middle wiring row and a lower wiring row, wherein the upper wiring row is positioned on the upper portion of the middle wiring row, the lower wiring row is positioned on the lower portion of the middle wiring row, the upper wiring row is welded with a first welding wire, the middle wiring row is welded with a second welding wire, and the lower wiring row is welded with a third welding wire.
Further, the rotating lever includes: the device comprises a first rotating rod and a second rotating rod, wherein one end of the first rotating rod is matched with a spring piece of the micro switch, the other end of the first rotating rod is connected with one end of the second rotating rod, and the other end of the second rotating rod is connected with the connecting shaft.
Further, the length of the second rotating rod is longer than the length of the second rotating rod.
Further, the first rotating rod and the second rotating rod are connected in an integrated mode.
Further, the first rotating rod and the second rotating rod form an included angle A after being connected.
Further, the included angle A is larger than 30 degrees and smaller than 90 degrees.
Further, one end of the second rotating rod connected with the first rotating rod is higher than the other end of the second rotating rod.
Further, one side, far away from the included angle, of the joint of the first rotating rod and the second rotating rod is arc-shaped.
Further, the shell is located at the connecting shaft and is further provided with a moving groove, and the connecting shaft penetrates through the moving groove arranged on the shell and the circuit breaker and then is connected with the bimetallic strip in a matching mode.
The beneficial effects of the utility model are as follows:
when the overload of the circuit breaker exceeds the overload long delay requirement of the relevant national standard for a period of time, the bimetallic strip can deform to a certain extent, the rotating mechanism is driven to move along the S1 direction through the deformation of the bimetallic strip, the first rotating rod of the rotating mechanism moves through the second rotating rod so as to drive the first rotating rod elastic sheet to close the micro switch, and the micro switch is welded with the upper wiring row, the middle wiring row and the lower wiring row through the first welding line, the second welding line and the third welding line respectively. And outputting a dry access point signal to prompt the overload.
Drawings
FIG. 1 is a schematic diagram of the overload warning non-trip structure of the present utility model;
fig. 2 is an internal structural view of the circuit breaker;
fig. 3 is a diagram of the overload warning non-trip structure and circuit breaker combination of the present utility model.
In the figure:
the micro-switch comprises a shell 1, a micro-switch 2, a first welding wire 3, a second welding wire 4, a third welding wire 5, a spring plate 6, a mechanism shaft 7, a bimetallic strip 8, a moving groove 9, an upper wiring row 10, a middle wiring row 11, a lower wiring row 12 and a first rotating rod 13, wherein the first rotating rod 14 is used for connecting the first welding wire and the second welding wire;
a breaker housing 80, a bore 81.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description is presented by way of example only and is not intended to limit the utility model.
It should be understood, however, that the terms "center," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the utility model. It will be understood by those skilled in the art that the present utility model may be practiced without some of these specific details. In some instances, well known methods, procedures, components, and circuits have not been described in detail so as not to obscure the present utility model.
As shown in fig. 1 and 3, in this embodiment, there is provided an overload alarm non-trip accessory, including: the shell 1, be equipped with in the shell 1 and hold the cavity, hold and be equipped with the subassembly that does not trip in the cavity, the subassembly that does not trip includes micro-gap switch 2, micro-gap switch 2 is located hold the cavity in, and micro-gap switch 2 passes through the bolt fastening on the inner wall of shell 1, be equipped with first welded wire 3, second welded wire 4, third welded wire 5 and shell fragment 6 on micro-gap switch 2, first welded wire 3, second welded wire 4 and third welded wire 5 are located same one side, shell fragment 6 is located one side that keeps away from first welded wire 3, second welded wire 4 and third welded wire 5, the one end of shell fragment is fixed on micro-gap switch, the other end is located micro-gap switch 2 button's upper portion, in this embodiment, the one end that shell fragment 6 and micro-gap switch 2 are connected is less than the one end that the carbon sheet is close to the button;
the rotating mechanism comprises a rotating rod, the rotating rod is fixed on the inner wall of the guest shell through a mechanism shaft 7, the rotating rod is rotated along the axial outer surface of the mechanism shaft 7 through the mechanism shaft 7, one end of the rotating rod is matched with a bimetallic strip 8 in the circuit breaker after passing through the shell 1 and the shell of the circuit breaker through a connecting shaft, the other end of the rotating rod is matched with one end, close to a button, of a spring sheet 6 of the micro switch, the shell 1 is further provided with a moving groove 9 at the position of the connecting shaft, and the connecting shaft is matched and connected with the bimetallic strip 8 after passing through the moving groove 9 arranged in the shell 1 and a hole 81 formed in the shell 80 of the circuit breaker;
the wiring row assembly, the wiring row assembly includes wiring row 10, well wiring row 11 and lower wiring row 12, it is fixed that go up wiring row, well wiring row and lower wiring row pass through the constant head tank that sets up on the casing, go up wiring row 10 and be located well wiring row 11's upper portion, lower wiring row 12 is located well wiring row 11's lower part go up wiring row 10 and first welding wire 3 welding, well wiring row 11 with second welding wire 4 welding, lower wiring row 12 with third welding wire 5 welding.
Through the above embodiment, when the overload time exceeds the overload time delay requirement of the relevant national standard due to overload for a period of time, the bimetal 8 deforms to a certain extent, the rotating mechanism is driven to move along the S1 direction through the deformation of the bimetal 8, the first rotating rod 13 of the rotating mechanism moves through the second rotating rod 14, and when the first rotating rod 13 is driven to move, the elastic sheet 6 is triggered to close the micro switch 2, and the micro switch 2 is welded with the upper wiring row 10, the middle wiring row 11 and the lower wiring row 12 through the first welding wire 3, the second welding wire 4 and the third welding wire 5 respectively. And outputting a dry access point signal to prompt the overload.
Specifically, when the circuit breaker is in normal working condition, the elastic sheet 6 arranged on the micro switch 3 props against the first rotating rod 12, the micro switch 3 is in the off position, normally closed contacts are combined, the upper wiring row 9 and the middle wiring row 10 form a dry contact,
when the overload of the circuit breaker exceeds the long delay requirement of the overload of the relevant national standard for a period of time, the bimetallic strip 8 in the circuit breaker can deform to a certain extent, the second rotating rod 14 is driven by the bimetallic strip to move towards the direction S1 in the figure 1 through the moving groove arranged on the shell 1, the first rotating rod 13 drives the micro switch to be closed, and the micro switch is welded with the middle lug and the lower lug row through the second welding line 4 and the third welding line 5, so that a dry contact signal is output to prompt the overload.
After the overload working condition is stopped, the bimetallic strip 8 is restored to the original shape, and as the microswitch design has an elastic sheet for restoring the original shape, after the double-metal is restored, the elastic sheet of the microswitch pushes the first rotating rod 13 to restore the second rotating rod 14 to the initial position.
In this embodiment, the rotating rod includes a first rotating rod 13 and a second rotating rod 14, one end of the first rotating rod 13 is matched with the elastic sheet 6 of the micro switch 2, the other end of the first rotating rod is connected with one end of the second rotating rod, the other end of the second rotating rod is connected with the connecting shaft, the second rotating rod is driven to move along the S1 direction by the deformation of the bimetal strip through the set rotating rod, and the elastic sheet is driven to close the micro switch after the first rotating rod is rotated.
In addition, it should be noted that, in order to enable the first rotating rod 13 and the second rotating rod 14 to be firmly connected to each other, in this embodiment, the first rotating rod 13 and the second rotating rod 14 are connected by an integral molding manner, so as to avoid the first rotating rod 13 and the second rotating rod 14 from being disconnected from each other by moving.
In order to make the second rotating rod 14 drive the first rotating rod 13, in this embodiment, the length of the second rotating rod 13 is longer than that of the second rotating rod 14, and in the actual production process, the first rotating rod 13 and the second rotating rod 14 can be set to other sizes so as to meet the overload alarm non-shedding accessories with different sizes, in addition, the first rotating rod 13 and the second rotating rod 14 can also adopt other structures, for example, the first rotating rod 13 and the second rotating rod 14 can be made into one rotating rod, and the rotating rods are fixedly installed at proper positions so as to be matched with the spring sheet 6 of the micro switch 2 when the rotating rods move.
In addition, it should be noted that, the first rotating rod 13 and the second rotating rod 14 form an included angle a after being connected, and the included angle a is greater than 30 ° and smaller than 90 °, in this embodiment, the included angle a is set to be 35 °, so that when the second rotating rod 14 moves and drives the second rotating rod 14 to move, the elastic sheet 6 of the micro switch 2 is moved, and then the micro switch 2 is closed.
In order to further move the second rotating rod 14 and drive the first rotating rod 13, in this way, one end of the second rotating rod 14 connected with the first rotating rod 13 is higher than the other end of the second rotating rod 14, and in addition, the connection part of the first rotating rod 13 and the second rotating rod 14 is in an arc shape at a side far from an included angle, so that scratches are avoided when workers install the device, and safety is ensured.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which is also intended to be covered by the present utility model.
Claims (9)
1. An overload warning non-trip accessory, comprising: the shell is internally provided with a containing cavity, a non-tripping component is arranged in the containing cavity, the non-tripping component comprises a micro switch, a first welding wire, a second welding wire, a third welding wire and an elastic piece are arranged on the micro switch, the first welding wire, the second welding wire and the third welding wire are positioned on the same side, and the elastic piece is positioned on one side far from the first welding wire, the second welding wire and the third welding wire and is positioned on the upper part of a micro switch button;
the rotating mechanism comprises a rotating rod, the rotating rod is fixed on the inner wall of the shell through a mechanism shaft, one end of the rotating rod passes through the shell through a connecting shaft and then is matched with a bimetallic strip of the circuit breaker, and the other end of the rotating rod is matched with an elastic sheet of the micro switch;
the wiring row assembly comprises an upper wiring row, a middle wiring row and a lower wiring row, wherein the upper wiring row is positioned on the upper portion of the middle wiring row, the lower wiring row is positioned on the lower portion of the middle wiring row, the upper wiring row is welded with a first welding wire, the middle wiring row is welded with a second welding wire, and the lower wiring row is welded with a third welding wire.
2. The overload alert non-trip accessory of claim 1, wherein: the rotating lever includes: the device comprises a first rotating rod and a second rotating rod, wherein one end of the first rotating rod is matched with a spring piece of the micro switch, the other end of the first rotating rod is connected with one end of the second rotating rod, and the other end of the second rotating rod is connected with the connecting shaft.
3. The overload alert non-trip accessory of claim 2, wherein: the length of the second rotating rod is longer than that of the second rotating rod.
4. The overload alert non-trip accessory of claim 3, wherein: the first rotating rod and the second rotating rod are connected in an integrated mode.
5. The overload alert non-trip accessory of claim 4, wherein: the first rotating rod and the second rotating rod form an included angle A after being connected.
6. The overload alert non-trip accessory of claim 5, wherein: the included angle A is larger than 30 degrees and smaller than 90 degrees.
7. The overload alert non-trip accessory of claim 5, wherein: one end of the second rotating rod, which is connected with the first rotating rod, is higher than the other end of the second rotating rod.
8. The overload alert non-trip accessory of claim 5, wherein: the connecting part of the first rotating rod and the second rotating rod is arc-shaped at one side far away from the included angle.
9. The overload alert non-trip accessory of claim 1, wherein: the shell is located at the connecting shaft and is further provided with a moving groove, and the connecting shaft penetrates through the moving groove arranged on the shell and the circuit breaker and then is connected with the bimetallic strip in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526400.7U CN220138221U (en) | 2023-06-15 | 2023-06-15 | Overload alarm non-tripping accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526400.7U CN220138221U (en) | 2023-06-15 | 2023-06-15 | Overload alarm non-tripping accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138221U true CN220138221U (en) | 2023-12-05 |
Family
ID=88960670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321526400.7U Active CN220138221U (en) | 2023-06-15 | 2023-06-15 | Overload alarm non-tripping accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138221U (en) |
-
2023
- 2023-06-15 CN CN202321526400.7U patent/CN220138221U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |