CN208315491U - A kind of thermomagnetic circuit breaker - Google Patents
A kind of thermomagnetic circuit breaker Download PDFInfo
- Publication number
- CN208315491U CN208315491U CN201820853277.2U CN201820853277U CN208315491U CN 208315491 U CN208315491 U CN 208315491U CN 201820853277 U CN201820853277 U CN 201820853277U CN 208315491 U CN208315491 U CN 208315491U
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- CN
- China
- Prior art keywords
- circuit breaker
- arc extinguishing
- shell
- contact
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of thermomagnetic circuit breakers, including circuit breaker housing, fixation is plugged with wiring shell on the left of the left end of the circuit breaker housing, the inner cavity left end lower part of the circuit breaker housing is fixedly connected with the first arc extinguishing shell and the second arc extinguishing shell, the inside of the first arc extinguishing shell and the second arc extinguishing shell is equipped with arc extinguishing grid pieces, the first connecting plate is fixedly connected in the middle part of the inner cavity of the circuit breaker housing, the right end upper and lower sides of first connecting plate have been respectively fixedly connected with the first bimetal leaf and the second bimetal leaf, the inner cavity right end top of the circuit breaker housing passes through connection axis connection gag lever post, the first spring is connected between circuit breaker housing intracavity sidewall on the right side of the upper end of the gag lever post.The thermomagnetic circuit breaker, by the structure of elastic piece, contact elastic strip and elastic ball, so that breaker conduction is more stable；By the structure of arc extinguishing grid pieces, the breaking capacity of short-circuiting device is improved.
Description
Technical field
The utility model relates to technical field of electric power, specially a kind of thermomagnetic circuit breaker.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.Breaker is divided into high-voltage circuitbreaker by its use scope
With low-voltage circuit breaker, high-low pressure identification of boundaries is relatively fuzzyyer, and 3kV or more is generally known as High-Voltage Electrical Appliances.Breaker can be used to
Electric energy is distributed, asynchronous motor is infrequently started, the implementations such as power circuit and motor are protected, when their generations are serious
When overload or short circuit and the failures such as under-voltage can automatic shutdown circuit, function is equivalent to Fuse switch and crosses underheat relay
The combination of device etc..And change components are not needed generally after disjunction fault current.Currently, had been widely used,
But common thermomagnetic circuit breaker is easily damaged, and what is switched connects in use, arc extinguishing grid pieces can bear very big arc temperature
Contact connection is not sufficiently stable, therefore we have proposed a kind of thermomagnetic circuit breakers.
Summary of the invention
The purpose of this utility model is to provide a kind of thermomagnetic circuit breakers, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of thermomagnetic circuit breaker, including breaker
Shell, the left end left side of the circuit breaker housing is fixed to be plugged with wiring shell, and the middle part fixation of the wiring shell is inlaid with
The inner cavity left end lower part of wiring contact, the circuit breaker housing is fixedly connected with the first arc extinguishing shell and the second arc extinguishing shell, institute
The inside for stating the first arc extinguishing shell and the second arc extinguishing shell is equipped with arc extinguishing grid pieces, fixes in the middle part of the inner cavity of the circuit breaker housing
It is connected with the first connecting plate, the right end upper and lower sides of first connecting plate have been respectively fixedly connected with the first bimetal leaf and second pair
The inner cavity right end top of sheet metal, the circuit breaker housing passes through connection axis connection gag lever post, the upper end right side of the gag lever post
The first spring is connected between circuit breaker housing intracavity sidewall, the left end of the gag lever post is fixedly connected with the first fixture block, described
Circuit breaker housing left upper part is plugged with drive rod, is fixedly connected with the second fixture block, the biography on the right side of the upper end of the drive rod
The right end of lever connects the second connecting plate by second spring, and the front and back end of second connecting plate is fixedly connected on breaker shell
On the intracavity sidewall of body, the middle part activity of the drive rod is plugged on the middle part of stable block, and the upper and lower sides of the stable block are fixed
It is inlaid with contact block, the contact block includes grafting chamber and elastic piece, and contact stem, institute are fixedly connected on the left of the drive rod
Stating contact stem includes contact elastic strip and elastic ball.
Preferably, the right end of the contact stem is fixedly connected with 4 contact elastic strips, the circle in the middle part of the contact elastic strip
Elastic ball is equipped with inside arc slot, the contact elastic strip is plugged in grafting chamber.
Preferably, grafting chamber is provided in the middle part of the left end of the contact block, the side of front and back up and down of the grafting chamber is fixed to be connected
It is connected to elastic piece.
Preferably, the arc extinguishing grid pieces are equipped with several, and the arc extinguishing grid pieces equidistant arrangement is in the first arc extinguishing shell and the
The inside of two arc extinguishing shells, the thickness of the arc extinguishing grid pieces are from left to right incremented by successively.
Preferably, it is fixedly connected with mandril in the middle part of the lower end of the gag lever post, the lower end of the mandril is movably connected in the
One bimetal leaf upper center.
Preferably, the wiring contact, the first bimetal leaf, the second bimetal leaf, the second arc extinguishing shell, contact block and
One arc extinguishing shell passes through conducting wire successively electrical series.
Compared with prior art, the utility model has the beneficial effects that the thermomagnetic circuit breaker, by be equipped with elastic piece,
The structure of contact elastic strip and elastic ball, so that contact of the contact block with contact stem is even closer, so that breaker conduction is more
Stabilization；By the structure equipped with arc extinguishing grid pieces, the ability of the second arc extinguishing shell and the first arc extinguishing shell tolerance electric arc is increased,
Greatly improve the breaking capacity of short-circuiting device；By the overall structure of equipment, so that breaker work is more stable, open circuit
It is more stable with the mode of combining.
Detailed description of the invention
Fig. 1 is the utility model section view；
Fig. 2 connects cross-sectional view with contact stem for the utility model contact block；
Fig. 3 is the first arc extinguishing of the utility model shell cross-sectional view.
In figure: 1 circuit breaker housing, 2 wiring shells, 3 wiring contacts, 4 second arc extinguishing shells, 5 first arc extinguishing shells, 51 are gone out
Arc grid, 6 first connecting plates, 7 second bimetal leafs, 8 first bimetal leafs, 9 gag lever posts, 10 first springs, 11 first fixture blocks,
12 drive rods, 13 second fixture blocks, 14 second springs, 15 second connecting plates, 16 contact blocks, 161 grafting chambers, 162 elastic pieces, 17 touchings
Block is stablized in head rod, 171 contact elastic strips, 172 elastic balls, 18.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of thermomagnetic circuit breaker, including breaker shell
Body 1, the left end left side of the circuit breaker housing 1 is fixed to be plugged with wiring shell 2, and the middle part fixation of the wiring shell 2 is inlayed
There is wiring contact 3, the inner cavity left end lower part of the circuit breaker housing 1 is fixedly connected with the first arc extinguishing shell 5 and the second arc extinguishing shell
Body 4, the arc extinguishing grid pieces 51 are equipped with several, and 51 equidistant arrangement of arc extinguishing grid pieces is in the first arc extinguishing shell 5 and the second arc extinguishing
The thickness of the inside of shell 4, the arc extinguishing grid pieces 51 is from left to right incremented by successively.The first arc extinguishing shell 5 and the second arc extinguishing
The inside of shell 4 is equipped with arc extinguishing grid pieces 51, is fixedly connected with the first connecting plate 6, institute in the middle part of the inner cavity of the circuit breaker housing 1
The right end upper and lower sides for stating the first connecting plate 6 have been respectively fixedly connected with the first bimetal leaf 8 and the second bimetal leaf 7, the open circuit
The inner cavity right end top of device shell 1 is fixedly connected with top by connection axis connection gag lever post 9, the lower end middle part of the gag lever post 9
Bar, the lower end of the mandril are movably connected in 8 upper center of the first bimetal leaf.It is on the right side of the upper end of the gag lever post 9 and breaking
The first spring 10 is connected between 1 intracavity sidewall of device shell, the left end of the gag lever post 9 is fixedly connected with the first fixture block 11, works as electricity
When electric current in road is excessive, the first bimetal leaf 8 and the second bimetal leaf 7 can generate a large amount of heat, so that bending expansion is generated,
To jack up the mandril of 9 lower end of gag lever post, so that about 9 gag lever post is rotated up, so that the first fixture block 11 and the second fixture block 13
Separation, and under the action of second spring 14, so that drive rod 12 moves downward, so that contact stem 17 is detached from grafting chamber
161, so that down circuitry, 1 left upper part of circuit breaker housing is plugged with drive rod 12, the upper end right side of the drive rod 12
It is fixedly connected with the second fixture block 13, presses drive rod 12 to the right manually, so that drive rod 12 moves right, so that the second card
Block 13 pushes the first fixture block 11 to move upwards, so that gag lever post 9 rotates, under the action of the first spring 10, in the second fixture block 13
When moving to left end, so that the second fixture block 13 and the first fixture block 11 mutually block, the right end of the drive rod 12 passes through the second bullet
Spring 14 connects the second connecting plate 15, and the front and back end of second connecting plate 15 is fixedly connected on the intracavity sidewall of circuit breaker housing 1
On, the middle part activity of the drive rod 12 is plugged on the middle part of stable block 18, and the upper and lower sides fixation of the stable block 18 is inlaid with
Contact block 16, the contact block 16 include grafting chamber 161 and elastic piece 162, are provided with grafting in the middle part of the left end of the contact block 16
The side of front and back up and down of chamber 161, the grafting chamber 161 is fixedly connected to elastic piece 162.The left side of the drive rod 12 is fixed to be connected
Be connected to contact stem 17, the contact stem 17 includes contact elastic strip 171 and elastic ball 172, the right end of contact stem 17 can grafting into
Grafting chamber 161, in the structure of elastic piece 162, contact elastic strip 171 and elastic ball 172, so that contact block 16 and contact stem 17
Contact even closer, so that breaker conduction is more stable, the right end of the contact stem 17 is fixedly connected with 4 contact elasticity
The arc groove inside of item 171,171 middle part of contact elastic strip is equipped with elastic ball 172, and the contact elastic strip 171 is plugged on
In grafting chamber 161, the wiring contact 3, the first bimetal leaf 8, the second bimetal leaf 7, the second arc extinguishing shell 4, contact block 16
Pass through conducting wire successively electrical series with the first arc extinguishing shell 5.
Working principle: thermomagnetic circuit breaker when being worked, manually to the right press drive rod 12 so that drive rod 12 to
Right movement, so that the second fixture block 13 pushes the first fixture block 11 to move upwards, so that gag lever post 9 rotates, in the first spring 10
Under the action of, when the second fixture block 13 moves to left end, so that the second fixture block 13 and the first fixture block 11 mutually block, and contact stem
17 right end meeting grafting is into grafting chamber 161, in the structure of elastic piece 162, contact elastic strip 171 and elastic ball 172, so that contact
Block 16 and the contact of contact stem 17 are even closer, so that breaker conduction is more stable, when the electric current in circuit is excessive, the
One bimetal leaf 8 and the second bimetal leaf 7 can generate a large amount of heat, so that bending expansion is generated, to jack up 9 lower end of gag lever post
Mandril so that about 9 gag lever post is rotated up, so that the first fixture block 11 and the separation of the second fixture block 13, and in second spring
Under the action of 14, so that drive rod 12 moves downward, so that contact stem 17 is detached from grafting chamber 161, so that down circuitry.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of thermomagnetic circuit breaker, including circuit breaker housing (1), it is characterised in that: the left end of the circuit breaker housing (1) is left
Side fixation is plugged with wiring shell (2), and the middle part fixation of the wiring shell (2) is inlaid with wiring contact (3), the breaker
The inner cavity left end lower part of shell (1) is fixedly connected with the first arc extinguishing shell (5) and the second arc extinguishing shell (4), first arc extinguishing
The inside of shell (5) and the second arc extinguishing shell (4) is equipped with arc extinguishing grid pieces (51), in the middle part of the inner cavity of the circuit breaker housing (1)
It is fixedly connected with the first connecting plate (6), the right end upper and lower sides of first connecting plate (6) have been respectively fixedly connected with the first bimetallic
The inner cavity right end top of piece (8) and the second bimetal leaf (7), the circuit breaker housing (1) passes through connection axis connection gag lever post
(9), it is connected with the first spring (10) between circuit breaker housing (1) intracavity sidewall on the right side of the upper end of the gag lever post (9), it is described
The left end of gag lever post (9) is fixedly connected the first fixture block (11), and circuit breaker housing (1) left upper part is plugged with drive rod
(12), it is fixedly connected with the second fixture block (13) on the right side of the upper end of the drive rod (12), the right end of the drive rod (12) passes through
Second spring (14) connects the second connecting plate (15), and the front and back end of second connecting plate (15) is fixedly connected on circuit breaker housing
(1) on intracavity sidewall, the middle part activity of the drive rod (12) is plugged on the middle part of stable block (18), the stable block (18)
Upper and lower sides fixation be inlaid with contact block (16), the contact block (16) includes grafting chamber (161) and elastic piece (162), described
It is fixedly connected on the left of drive rod (12) contact stem (17), the contact stem (17) includes contact elastic strip (171) and elasticity
Ball (172).
2. a kind of thermomagnetic circuit breaker according to claim 1, it is characterised in that: the right end of the contact stem (17) is fixed
4 contact elastic strips (171) are connected with, are equipped with elastic ball (172) inside the arc groove in the middle part of the contact elastic strip (171),
The contact elastic strip (171) is plugged in grafting chamber (161).
3. a kind of thermomagnetic circuit breaker according to claim 1, it is characterised in that: in the middle part of the left end of the contact block (16)
It is provided with grafting chamber (161), the side of front and back up and down of the grafting chamber (161) is fixedly connected to elastic piece (162).
4. a kind of thermomagnetic circuit breaker according to claim 1, it is characterised in that: the arc extinguishing grid pieces (51) are equipped with several
A, arc extinguishing grid pieces (51) equidistant arrangement is in the inside of the first arc extinguishing shell (5) and the second arc extinguishing shell (4), the arc extinguishing
The thickness of grid (51) is from left to right incremented by successively.
5. a kind of thermomagnetic circuit breaker according to claim 1, it is characterised in that: in the middle part of the lower end of the gag lever post (9)
It is fixedly connected with mandril, the lower end of the mandril is movably connected in the first bimetal leaf (8) upper center.
6. a kind of thermomagnetic circuit breaker according to claim 1, it is characterised in that: the wiring contact (3), first pair of gold
Belong to piece (8), the second bimetal leaf (7), the second arc extinguishing shell (4), contact block (16) and the first arc extinguishing shell (5) pass through conducting wire according to
Secondary electrical series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820853277.2U CN208315491U (en) | 2018-06-04 | 2018-06-04 | A kind of thermomagnetic circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820853277.2U CN208315491U (en) | 2018-06-04 | 2018-06-04 | A kind of thermomagnetic circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208315491U true CN208315491U (en) | 2019-01-01 |
Family
ID=64710090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820853277.2U Expired - Fee Related CN208315491U (en) | 2018-06-04 | 2018-06-04 | A kind of thermomagnetic circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208315491U (en) |
-
2018
- 2018-06-04 CN CN201820853277.2U patent/CN208315491U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 |