CN107240534B - Circuit breaker uncovering protection mechanism and circuit breaker - Google Patents
Circuit breaker uncovering protection mechanism and circuit breaker Download PDFInfo
- Publication number
- CN107240534B CN107240534B CN201710697428.XA CN201710697428A CN107240534B CN 107240534 B CN107240534 B CN 107240534B CN 201710697428 A CN201710697428 A CN 201710697428A CN 107240534 B CN107240534 B CN 107240534B
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- China
- Prior art keywords
- circuit breaker
- cover
- rotating piece
- protection mechanism
- rotating
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/126—Automatic release mechanisms with or without manual release actuated by dismounting of circuit breaker or removal of part of circuit breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Breakers (AREA)
Abstract
The invention provides a circuit breaker uncovering protection mechanism, which comprises a bracket, a cover, a first cover and a second cover, wherein the bracket is arranged on a base of a circuit breaker; a rotating member rotatably mounted on the bracket; the return spring is connected between the support and the rotating piece, when the breaker cover is closed, the rotating piece is pressed by the breaker cover to separate the rotating piece from the traction rod, and the return spring is in a compressed state; when the circuit breaker lid was opened, reset spring's biasing power acted on rotate on the piece, the drive rotate the piece and rotate to support and promote the traction lever dropout, when this circuit breaker uncap protection mechanism of installation, will rotate the piece with install after reset spring assembles on the support, then will the support is installed on the base of circuit breaker, easy to assemble uses, when the circuit breaker lid was opened, the circuit breaker must be in the separating brake state to circuit breaker electrification or circuit breaker when avoiding abnormal operation do not separate the brake and arouse the electric shock danger.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a circuit breaker uncovering protection mechanism and a circuit breaker.
Background
The traditional molded case circuit breaker adopts a plastic base and a plastic cover to ensure the insulation of the outer end surface of the molded case circuit breaker and prevent electric shock. When the cover is not completely closed or the cover is damaged and broken, if the circuit breaker under the working condition is not cut off in time, no alarm device is arranged, and potential safety hazards are easy to generate.
Chinese patent document CN201252063Y discloses an uncovering tripping mechanism for a molded case circuit breaker, which acts on an operating mechanism of the molded case circuit breaker, and comprises a connecting rod, wherein the center of the connecting rod is provided with a through hole, the connecting rod is rotatably connected to a rotating shaft through the through hole, and the rotating shaft is mounted on a side plate on the operating mechanism and is close to a position of a tripping traction rod; the reset spring is connected to the connecting rod and enables the connecting rod to rotate towards the direction of the pin of the tripping traction rod; the molded case circuit breaker cover is contacted with the connecting rod at a normal closing position, and the molded case circuit breaker cover enables the connecting rod to rotate towards a direction far away from the pin of the tripping traction rod.
Above-mentioned prior art enables the circuit breaker and appears under the circumstances except that normally closed at the lid, and the automatic tripping of circuit breaker breaks off, improves operation maintenance personnel's security. However, in the prior art, the rotating shaft must be added on the circuit breaker operating mechanism to complete the installation of the cover opening tripping mechanism of the molded case circuit breaker, the installation process is troublesome, and the molded case circuit breaker can only be installed near the pins, is greatly limited by space, and is inconvenient to install and use.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of overcoming the defect that the circuit breaker cover opening tripping mechanism in the prior art is inconvenient to install and use, and provides the circuit breaker cover opening protection mechanism and the circuit breaker which are convenient to install and use.
In order to solve the technical problem, the invention provides a circuit breaker cover opening protection mechanism and a circuit breaker, wherein the circuit breaker cover opening protection mechanism comprises:
the bracket is arranged on a base of the circuit breaker;
a rotating member rotatably mounted on the bracket;
the return spring is connected between the support and the rotating piece, when the breaker cover is closed, the rotating piece is pressed by the breaker cover to separate the rotating piece from the traction rod, and the return spring is in a compressed state; when the circuit breaker cover is opened, the biasing force of the return spring acts on the rotating piece to drive the rotating piece to rotate to abut against and push the traction rod to release.
The support includes the draw-in groove, through the draw-in groove joint is in on the outer wall of base.
The bracket further includes a mounting groove in which the rotating member is rotatably mounted.
The clamping groove and the mounting groove are provided with an opening facing upwards and an opening facing downwards.
The mounting groove is characterized in that holes are formed in two opposite side walls of the mounting groove, protruding portions which can be inserted into the holes are arranged on two sides of the rotating piece, and the rotating piece is inserted into the protruding portions and is rotatably installed in the mounting groove.
The rotating piece is of an L-shaped structure, the protruding portion is arranged at one end of the L-shaped structure, and the other end of the L-shaped structure drives the traction rod to be tripped when the breaker cover is opened.
The surface of the rotating part is also provided with a boss, and when the circuit breaker cover is closed, the rotating part is pressed by propping against the boss so that the rotating part is not contacted with the traction rod.
The reset spring is a double torsion spring, the middle rod of the double torsion spring is sleeved on the outer side of the rotating part, two torsion rings of the double torsion spring are respectively sleeved on the outer side of the protruding part, and two end parts of the double torsion spring are fixedly arranged on the support.
And a gap suitable for the boss to be clamped is arranged on the base of the circuit breaker.
A circuit breaker is provided with the circuit breaker cover opening protection mechanism.
The technical scheme of the invention has the following advantages:
1. the invention provides a circuit breaker uncovering protection mechanism, which comprises a bracket, a cover, a first cover and a second cover, wherein the bracket is arranged on a base of a circuit breaker; a rotating member rotatably mounted on the bracket; the return spring is connected between the support and the rotating piece, when the breaker cover is closed, the rotating piece is pressed by the breaker cover to separate the rotating piece from the traction rod, and the return spring is in a compressed state; when the circuit breaker lid was opened, reset spring's biasing power acted on rotate on the piece, the drive rotate the piece and rotate to support and promote the traction lever dropout, when this circuit breaker uncap protection mechanism of installation, will rotate the piece with install after reset spring assembles on the support, then will the support is installed on the base of circuit breaker, easy to assemble uses, when the circuit breaker lid was opened, the circuit breaker must be in the separating brake state to circuit breaker electrification or circuit breaker when avoiding abnormal operation do not separate the brake and arouse the electric shock danger.
2. According to the cover opening protection mechanism of the circuit breaker, the support comprises the clamping groove, and the clamping groove is clamped on the outer wall of the base, so that the support and the base of the circuit breaker can be conveniently disassembled and assembled.
3. According to the circuit breaker cover opening protection mechanism provided by the invention, the two opposite side walls of the mounting groove are provided with the holes, the two sides of the rotating piece are provided with the protruding parts capable of being inserted into the holes, the rotating piece is inserted into the holes through the protruding parts and is rotatably mounted in the mounting groove, and the support and the rotating piece are simple and compact in structure and convenient to mount.
4. According to the cover opening protection mechanism of the circuit breaker, the reset spring is a double torsion spring, the middle rod of the double torsion spring is sleeved on the outer side of the rotating piece, the two torsion rings of the double torsion spring are respectively sleeved on the outer sides of the protruding portions, the two end portions of the double torsion spring are fixedly arranged on the support, the connection of the reset spring, the support and the rotating piece is compact, when the circuit breaker cover is closed, the reset spring can be guaranteed to be in a compressed state, when the circuit breaker cover is opened, the reset spring can apply a biasing force to the rotating piece, and the rotating piece is driven to rotate to abut against and push the traction rod to release.
5. The breaker provided by the invention is provided with the breaker cover opening protection mechanism, and when the breaker cover is opened, the breaker is always in the opening state, so that the electric shock danger caused by electrification of the breaker or non-opening of the breaker in abnormal operation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a circuit breaker open-cover protection mechanism provided in a first embodiment of the invention;
FIG. 2 is a schematic view of the assembled bracket, double torsion spring and rotating member shown in FIG. 1;
fig. 3 is a left side view of the circuit breaker open cover protection mechanism with the circuit breaker cover closed;
fig. 4 is a left side view of the circuit breaker cover protection mechanism with the circuit breaker cover open.
Description of reference numerals:
1-a base; 2-double torsion spring; 3-a scaffold;
4-a rotating member; 5, a draw bar; 6-circuit breaker cover;
7-notch; 8-boss.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
One embodiment of a circuit breaker open cover protection mechanism, as shown in fig. 1-4, includes a bracket 3 mounted on a base 1 of the circuit breaker; a rotating member 4 rotatably mounted on the bracket 3; a return spring connected between the holder 3 and the rotor 4, the rotor 4 being urged by the breaker cover 6 to separate the rotor 4 from the draw bar 5 when the breaker cover 6 is closed, the return spring being in a compressed state; when the circuit breaker cover 6 is opened, the biasing force of the return spring acts on the rotating piece 4 to drive the rotating piece 4 to rotate to abut against and push the traction rod 5 to be tripped. In this embodiment, in order to facilitate the detachment and installation of the bracket 3 and the base 1 of the circuit breaker, the bracket 3 includes a clamping groove, an opening of the clamping groove faces downward, and the clamping groove is clamped on the outer wall of the base 1; support 3 still includes the mounting groove, the opening of mounting groove up, be equipped with the hole on two relative lateral walls of mounting groove, the both sides of rotating 4 are equipped with can insert the bulge in the hole, it passes through to rotate 4 the bulge inserts downthehole rotationally install in the mounting groove, support 3 with rotate the simple structure compactness of 4, easy to assemble. In this embodiment, the rotating element 4 is an L-shaped structure, the protrusion is disposed at one end of the L-shaped structure, and the other end of the L-shaped structure drives the drawbar 5 to trip when the breaker cover 6 is opened, so that the rotating element 4 with this structure is simple in structure and convenient to process and manufacture; the surface of the rotating part 4 is also provided with a lug boss 8, when the circuit breaker cover 6 is closed, the rotating part 4 is pressed by abutting against the lug boss 8, so that the rotating part 4 is not contacted with the traction rod 5, and the structural space utilization rate of the rotating part 4 is high. In this embodiment, for making reset spring with support 3, the connection of rotating 4 is compact, reset spring is two torsional springs 2, the intermediate lever cover of two torsional springs 2 is in rotate 4 outsides, two of two torsional springs 2 turn round the circle and overlap respectively in the bulge outside, two end fixing of two torsional springs 2 sets up on the support 3 when circuit breaker lid 6 is closed, reset spring can guarantee to be in compression state, when circuit breaker lid 6 is opened, reset spring can right rotate 4 and exert biasing force, the drive rotate 4 and rotate to support and promote draw bar 5 is tripped.
When the circuit breaker cover opening protection mechanism is installed, the rotating piece 4 and the double torsion spring 2 are assembled and then installed on the bracket 3, then the bracket 3 is arranged on the outer wall of the base 1 of the circuit breaker through the clamping groove, the installation is convenient, when the circuit breaker cover 6 is closed, the circuit breaker cover 6 prevents the rotating piece 4 from contacting the traction rod 5 through the boss 8 abutting against the surface of the rotating piece 4, during this time, the double torsion spring 2 is always in a compressed state, and when the breaker cover 6 is opened, the bias force of the double torsion spring 2 acts on the rotating piece 4 to drive the rotating piece 4 to rotate to abut against and push the draw bar 5 to release, so that the circuit breaker can be ensured to be in a brake-separating state when the circuit breaker cover 6 is opened, thereby avoiding the circuit breaker electrification or the circuit breaker not opening to cause electric shock danger when abnormal operation.
In a modified embodiment, the outer wall of the base 1 of the circuit breaker is provided with a notch 7, when the circuit breaker cover 6 is closed, the circuit breaker cover 6 abuts against the boss 8 on the surface of the rotating part, so that the boss 8 is clamped in the notch 7, and the circuit breaker cover 6 can be prevented from being pushed open by the bias force of the return spring.
Example 2
A circuit breaker is provided with a circuit breaker cover opening protection mechanism as shown in figures 1-4, and the circuit breaker is in an opening state when a circuit breaker cover 6 is opened, so that the circuit breaker is prevented from being electrified or not opening during abnormal operation to cause electric shock danger.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. The utility model provides a circuit breaker protection mechanism that uncaps which characterized in that includes:
the support is arranged on a base of the circuit breaker and comprises a clamping groove, and the clamping groove is clamped on the outer wall of the base;
a rotating member rotatably mounted on the bracket;
the return spring is connected between the support and the rotating piece, when the breaker cover is closed, the rotating piece is pressed by the breaker cover to separate the rotating piece from the traction rod, and the return spring is in a compressed state; when the circuit breaker cover is opened, the biasing force of the return spring acts on the rotating piece to drive the rotating piece to rotate to abut against and push the traction rod to release.
2. The circuit breaker open cover protection mechanism of claim 1, wherein the bracket further comprises a mounting slot, and the rotating member is rotatably mounted in the mounting slot.
3. The circuit breaker door opening protection mechanism as claimed in claim 2, wherein the card slot and the mounting groove are opened upward and downward respectively.
4. The mechanism as claimed in claim 2, wherein the mounting groove has holes on two opposite side walls thereof, and the rotating member has protrusions on both sides thereof for insertion into the holes, and the rotating member is rotatably mounted in the mounting groove by insertion of the protrusions into the holes.
5. The circuit breaker cover opening protection mechanism according to claim 4, wherein the rotating piece is of an L-shaped structure, the protrusion is arranged at one end of the L-shaped structure, and the other end of the L-shaped structure drives the traction rod to release when the circuit breaker cover is opened.
6. The circuit breaker uncovering protection mechanism according to claim 4 or 5, characterized in that a boss is further arranged on the surface of the rotating piece, and when the circuit breaker cover is closed, the rotating piece is pressed against the boss so that the rotating piece does not contact with the traction rod.
7. The uncovering protection mechanism for the circuit breaker according to claim 6, wherein the return spring is a double torsion spring, the middle rod of the double torsion spring is sleeved outside the rotating part, two torsion rings of the double torsion spring are respectively sleeved outside the protruding part, and two end parts of the double torsion spring are fixedly arranged on the support.
8. The mechanism of claim 6, wherein a notch is formed in a base of the circuit breaker and is suitable for the boss to be clamped into.
9. A circuit breaker having a circuit breaker open cover protection mechanism as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697428.XA CN107240534B (en) | 2017-08-15 | 2017-08-15 | Circuit breaker uncovering protection mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697428.XA CN107240534B (en) | 2017-08-15 | 2017-08-15 | Circuit breaker uncovering protection mechanism and circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107240534A CN107240534A (en) | 2017-10-10 |
| CN107240534B true CN107240534B (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710697428.XA Active CN107240534B (en) | 2017-08-15 | 2017-08-15 | Circuit breaker uncovering protection mechanism and circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN107240534B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975557A (en) * | 2017-12-27 | 2018-05-01 | 钱江弹簧（杭州）有限公司 | Torsion spring fixation kit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040008425A (en) * | 2002-07-18 | 2004-01-31 | 엘지산전 주식회사 | auxiliary cover for circuit breaker |
| CN201252063Y (en) * | 2008-07-31 | 2009-06-03 | 上海电器科学研究所（集团）有限公司 | Open cover tripping mechanism of breaker with plastic case |
| CN102522279A (en) * | 2011-12-02 | 2012-06-27 | 上海电器科学研究院 | Uncap releasing protecting device of direct current belt fuse breaker |
| CN203536251U (en) * | 2013-11-21 | 2014-04-09 | 德力西电气有限公司 | Cover opening power-off structure of breaker |
| CN203536250U (en) * | 2013-11-21 | 2014-04-09 | 德力西电气有限公司 | Closable cover opening power-off structure of breaker |
| CN207183191U (en) * | 2017-08-15 | 2018-04-03 | 德力西电气有限公司 | A kind of breaker is uncapped protection mechanism and breaker |
-
2017
- 2017-08-15 CN CN201710697428.XA patent/CN107240534B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040008425A (en) * | 2002-07-18 | 2004-01-31 | 엘지산전 주식회사 | auxiliary cover for circuit breaker |
| CN201252063Y (en) * | 2008-07-31 | 2009-06-03 | 上海电器科学研究所（集团）有限公司 | Open cover tripping mechanism of breaker with plastic case |
| CN102522279A (en) * | 2011-12-02 | 2012-06-27 | 上海电器科学研究院 | Uncap releasing protecting device of direct current belt fuse breaker |
| CN203536251U (en) * | 2013-11-21 | 2014-04-09 | 德力西电气有限公司 | Cover opening power-off structure of breaker |
| CN203536250U (en) * | 2013-11-21 | 2014-04-09 | 德力西电气有限公司 | Closable cover opening power-off structure of breaker |
| CN207183191U (en) * | 2017-08-15 | 2018-04-03 | 德力西电气有限公司 | A kind of breaker is uncapped protection mechanism and breaker |
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| Publication number | Publication date |
|---|---|
| CN107240534A (en) | 2017-10-10 |
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