CN209232714U - A kind of moving contact structure of breaker of plastic casing - Google Patents
A kind of moving contact structure of breaker of plastic casing Download PDFInfo
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- CN209232714U CN209232714U CN201920098468.7U CN201920098468U CN209232714U CN 209232714 U CN209232714 U CN 209232714U CN 201920098468 U CN201920098468 U CN 201920098468U CN 209232714 U CN209232714 U CN 209232714U
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- moving contact
- clamping plate
- shaft shell
- conduction clamping
- breaker
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Abstract
The utility model discloses a kind of moving contact structures of breaker of plastic casing, belong to field of circuit breakers, its key points of the technical solution are that including shaft shell and conduction clamping plate, the shaft shell is rotationally connected with conduction clamping plate, the torsional spring of drive shaft shell rotation is equipped between the conduction clamping plate and shaft shell, the conduction clamping plate is hinged with moving contact, the shaft shell is equipped with driving moving contact and rotates and contact at the reprimand opening structure of shaft shell, the shaft shell is equipped with locking structure, the locking structure includes the conflict block for being slidably connected to shaft shell, it is fixedly connected on the drag-line of conduction clamping plate and conflict block is contacted to the Lock spring of moving contact, the drag-line is fixedly connected on the one end of conflict block far from conduction clamping plate far from one end of conduction clamping plate, described Lock spring one end contacts at the one end of conflict block far from conduction clamping plate, its The other end contacts at rotation contact.The utility model has the effect of that moving contact automatically resets.
Description
Technical field
The utility model relates to breaker technical fields, more specifically, it relates to a kind of moving contact of breaker of plastic casing
Structure.
Background technique
Breaker of plastic casing can automatically cut off electric current after electric current is more than escape setting.Plastic housing refers to using plastic insulation
As the shell of device, it is used between insulated conductor and ground metal portion.Breaker of plastic casing usually contains pyromagnetic escape
Unit, and the breaker of plastic casing of big model can be equipped with solid-state escape sensor.
Currently, the Chinese utility model patent that notification number is CN205069552U disclose a kind of breaker of plastic casing contact can
Denounce device, be disposed with static contact supporting plate, connecting plate, U-board, quiet silver contact, dynamic silver contact, moving contact, plate hole, first axle,
Second axis, spring, third axis, shaft and actuator hole, the static contact supporting plate are connect by connecting plate with U-board, the quiet silver
It is provided with dynamic silver contact on the upside of contact, and dynamic silver contact is fixed on moving contact, plate hole is provided on the left of the moving contact, it is described dynamic
First axle to be installed on the right side of contact, the second axis is provided on the downside of the first axle, second axis passes through spring and third axis connection,
It is provided with shaft on rear side of the moving contact, actuator hole is provided in the shaft.Breaker of plastic casing contact can denounce device to improve
Breaking capacity, but the part without increasing contact apparatus, structure are also relatively easy, and cost free increases.
Prior art among the above has the following deficiencies: makes moving contact overcome torsional spring under the action of electrodynamic repulsion force
Elastic force rotation, makes the second axis contact at the outside of spring dog-ear after rotation, so that spring application becomes with the power on the second axis
Change, thus rotate moving contact along electrodynamic repulsion force direction in the same direction, so that the purpose of Quick release is realized, but after disengaging
Hand-reset is needed, contacts at the second axis on the inside of spring dog-ear, it is inconvenient to use so as to cause breaker of plastic casing.
Utility model content
The utility model aim is to provide a kind of moving contact structure of breaker of plastic casing for facilitating moving contact to reset.
The utility model to achieve the goals above, provides following technical solution: a kind of moving contact of breaker of plastic casing
Structure, including shaft shell and conduction clamping plate, the shaft shell are rotationally connected with conduction clamping plate, the conduction clamping plate and shaft
The torsional spring of drive shaft shell rotation is equipped between shell, the conduction clamping plate is hinged with moving contact, and the shaft shell is equipped with
Driving moving contact rotates and contacts at the reprimand opening structure of shaft shell, the reprimand opening structure driving moving contact rotation direction and torsion
Spring drive shaft shell rotates contrary, and the shaft shell is equipped with locking structure, and the locking structure includes that sliding connects
The locking bullet for being connected to the conflict block of shaft shell, being fixedly connected on the drag-line of conduction clamping plate and conflict block being contacted to moving contact
Spring, the drag-line are fixedly connected on the one end of conflict block far from conduction clamping plate, the Lock spring far from one end of conduction clamping plate
One end contacts at the one end of conflict block far from conduction clamping plate, and the other end contacts at rotation contact.
By using above-mentioned technical proposal, electrodynamic repulsion force can be generated when excessive by the electric current of short-circuiting device, in electronic reprimand
Under power effect, moving contact can denounce opening structure to rotate to the direction far from static contact, so that moving contact and shaft shell form one
Then a angle pushes conflict block under the elastic force effect of Lock spring, so that conflict block is contradicted moving contact, prevent moving contact and quiet
The rebound of moving contact after electrodynamic repulsion force disappears after contact separation；Electric current, which is crossed, can also trigger the work that buckle releaser makes shaft shell in torsional spring
With lower rotation, so that the route of drag-line process is increased, to apply pulling force, the conflict block gram under the action of pulling force to conflict block
The elastic force for taking Lock spring is mobile to the direction far from conduction clamping plate, so that conflict block be made no longer to contradict moving contact, makes moving contact
Moving contact is no longer contacted at, and then moving contact contacts on shaft shell under the action of denounceing opening structure.
The utility model is further arranged to: the shaft shell offers mounting groove, and the installation groove sidewall rotation connects
It is connected to first axle, the first axle is arranged in conduction clamping plate and the two is rotatablely connected, and the first axle is arranged in moving contact simultaneously
And the two is rotatablely connected, the moving contact stretches out mounting groove far from one end of first axle.
By using above-mentioned technical proposal, makes shaft shell and moving contact jointed shaft is first axle, thus connection structure
Simple and stable, it is easy for installation.
The utility model is further arranged to: the reprimand opening structure includes the pressing plate for being articulated with shaft shell, driving pressure
The reprimand of plate rotation opens spring and the second axis for being arranged in moving contact, and the reprimand opens spring one end and contacts at shaft shell, the other end
Pressing plate one end end face is contacted at, second axis contacts at pressing plate far from spring one end end face, when described moving contact one end contradicts
When installing groove bottom wall, the reprimand opens spring and is in compressive state.
By using above-mentioned technical proposal, the trend of the oriented second axis rotation of pressing plate is made under the action of reprimand opens spring, from
And pressure is applied to the second axis, and then rotate moving contact and contact at shaft shell, and when breaker closing, shaft shell
Rotational angle be greater than the rotational angle of moving contact, moving contact is closely contacted at so as to open the elastic force of spring by reprimand
On static contact.
The utility model is further arranged to: the installation groove bottom wall opens up sliding slot, and the conflict block is slidably connected to cunning
In slot.
By using above-mentioned technical proposal, the glide direction of conflict block is limited using sliding slot, makes conflict block and shaft shell
Connection structure is more stable.
The utility model is further arranged to: the conflict block is equipped with the first inclined-plane close to one end of moving contact.
By using above-mentioned technical proposal, moving contact is contradicted using the first inclined-plane, reduces conflict block between moving contact
Pressure avoids moving contact from damaging.
The utility model is further arranged to: first inclined-plane offers multiple anti-skid bulges.
By using above-mentioned technical proposal, increases the frictional force between conflict block and moving contact using anti-skid bulge, avoid
Then moving contact slides the pressure that the first inclined-plane applies.
The utility model is further arranged to: the shaft shell is rotatably connected to idler wheel far from one end of conduction clamping plate,
Described drag-line one end is fixedly connected on conflict block, and the other end is around idler wheel and is fixedly connected on conduction clamping plate.
By using above-mentioned technical proposal, reduce the frictional force of blind drawstring Yu shaft shell using idler wheel, to make drag-line
More easily pull conflict block.
The utility model is further arranged to: the moving contact is fixedly connected with metal material far from one end of conduction clamping plate
Dynamic touch panel, the width of the dynamic touch panel is greater than the width of moving contact.
By using above-mentioned technical proposal, increases the contact area between moving contact and fixed contact using dynamic touch panel, reduce
Pressure between the two, damages moving contact when avoiding contradicting between the two.
In conclusion the utility model has the following beneficial effects:
First, electric current is crossed and can trigger buckle releaser and rotate shaft shell under the action of torsional spring, to increase drag-line warp
The route crossed, to apply pulling force to conflict block, conflict block overcomes the elastic force of Lock spring to lead to separate under the action of pulling force
The direction of electric clamping plate is mobile, so that conflict block be made no longer to contradict moving contact, moving contact is made no longer to contact at moving contact, and then dynamic touching
Head contacts on shaft shell under the action of denounceing opening structure；
Second, making the trend of the oriented second axis rotation of pressing plate under the action of reprimand opens spring, pressed to apply to the second axis
Power, and then rotate moving contact and contact at shaft shell, when breaker closing, the rotational angle of shaft shell is greater than dynamic
Head-turned angle is touched, the elastic force so as to open spring by reprimand closely contacts at moving contact on static contact；
Third, increasing the contact area between moving contact and fixed contact using dynamic touch panel, reduces pressure between the two, keep away
Moving contact is damaged when exempting to contradict between the two.
Detailed description of the invention
Fig. 1 is the perspective view of the present embodiment；
Fig. 2 is the structural schematic diagram that the present embodiment is used to show reprimand opening structure；
Fig. 3 is the sectional view that the present embodiment is used to show locking structure.
Appended drawing reference: 301, shaft shell；302, conduction clamping plate；303, moving contact；304, denounce opening structure；305, locking knot
Structure；306, mounting groove；307, first axle；308, torsional spring；309, pressing plate；310, reprimand opens spring；311, the second axis；312, spring
Slot；313, conflict block；314, drag-line；315, Lock spring；316, sliding slot；317, the first inclined-plane；318, anti-skid bulge；319,
Two inclined-planes；320, idler wheel；321, touch panel is moved.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of moving contact structure of breaker of plastic casing, as depicted in figs. 1 and 2, including shaft shell 301, conduction clamping plate 302
With moving contact 303.Shaft shell 301 is rotationally connected with conduction clamping plate 302, and moving contact 303 is articulated with shaft shell 301.Shaft
Shell 301 is equipped with reprimand opening structure 304 and locking structure 305, and opening structure 304 and locking structure 305 is denounceed to drive 303 turns of moving contact
It is dynamic, and the rotation direction of the two driving moving contact 303 is opposite.
As illustrated in fig. 1 and 2, shaft shell 301 offers mounting groove 306, and 306 side wall of mounting groove is rotatably connected to level and sets
The first axle 307 set.First axle 307 is arranged in conduction clamping plate 302 and the two is rotatablely connected.First axle 307 is arranged with torsional spring
308, one end of torsional spring 308 is fixedly connected on conduction clamping plate 302, and the other end is fixedly connected on shaft shell 301, in torsional spring
308 twisting force lower rotary shaft shell 301 rotates counterclockwise.303 one end of moving contact is sheathed on first axle 307 and the two rotates
Connection, moving contact 303 stretch out mounting groove 306 far from one end of first axle 307.The one end of moving contact 303 far from conduction clamping plate 302
It is fixedly connected with and moves touch panel 321 made of yellow gold material, the width for moving touch panel 321 is greater than the width of moving contact 303, utilizes
Dynamic touch panel 321 increases the contact area between moving contact 303 and fixed contact, reduces pressure between the two, avoids between the two
Damage moving contact 303 when conflict.
As illustrated in fig. 1 and 2, reprimand opening structure 304 includes the pressing plate 309 for being articulated with shaft shell 301,309 turns of pressing plate of driving
Dynamic reprimand opens spring 310 and fixed the second axis 311 for being arranged in moving contact 303.The pivot center and first axle 307 of pressing plate 309
It is set in parallel, and is located at the position of pressing plate 309 on the lower.Shaft shell 301 offers spring groove 312, and reprimand opens spring 310 1
End is placed in the left side that the other end in spring groove 312 contacts at the top one end of pressing plate 309.It is top that second axis 311 contacts at pressing plate 309
The right side of one end.When 303 one end of moving contact contacts at 306 bottom wall of mounting groove, the second axis 311 squeezes reprimand by pressing plate 309 and opens
Spring 310 is at compressive state.Electrodynamic repulsion force can be generated when excessive by the electric current of short-circuiting device, in the work of electrodynamic repulsion force
It is rotated clockwise with lower moving contact 303, so that moving contact 303 be made to separate with static contact.
As shown in figure 3, locking structure 305 includes the conflict block 313 for being slidably connected to shaft shell 301, is fixedly connected on
The drag-line 314 of conduction clamping plate 302 and the Lock spring 315 that conflict block 313 is contacted to moving contact 303.306 bottom wall edge of mounting groove
Length direction opens up sliding slot 316, and conflict block 313 is slidably connected in sliding slot 316, and the cunning of conflict block 313 is limited using sliding slot 316
Dynamic direction, keeps conflict block 313 and 301 connection structure of shaft shell more stable.Lock spring 315 is placed in sliding slot 316, one
End contacts at 316 bottom wall of sliding slot, and the other end contacts at the one end of conflict block 313 far from first axle 307.It wears 314 one end of drag-line
It crosses a Lock spring 315 and is fixedly connected on conflict block 313, then the other end is fixedly connected from left side around shaft shell 301
In conduction clamping plate 302.Conflict block 313 is equipped with the first inclined-plane 317 close to one end of moving contact 303, and the first inclined-plane 317 is fixedly connected
There are multiple anti-skid bulges 318,303 lower end of moving contact offers the second inclined-plane 319.When moving contact 303 contacts at shaft shell 301
When, the first inclined-plane 317 is parallel with the second inclined-plane 319 and mutually contradicts.When first inclined-plane 317 and the second inclined-plane 319 mutually contradict,
Locking spring is in compressive state.When excessive by the electric current of short-circuiting device, moving contact 303 under the action of electrodynamic repulsion force with stationary contact
Head is to rotating counterclockwise, and moving contact 303 and 301 shape of shaft shell are in an angle, then make in the elastic force of Lock spring 315
With lower promotion conflict block 313, conflict block 313 is made to contradict moving contact 303, electronic reprimand after preventing moving contact 303 and static contact from separating
The rebound of moving contact 303 after power disappears.Electric current is crossed and can trigger buckle releaser and rotate shaft shell 301 under the action of torsional spring 308,
To increase the route of the process of drag-line 314, to apply pulling force, 313 grams of conflict block under the action of pulling force to conflict block 313
The elastic force for taking Lock spring 315 is mobile to the direction far from conduction clamping plate 302, so that conflict block 313 be made no longer to contradict moving contact
303, so that moving contact 303 is no longer contacted at moving contact 303, and then moving contact 303 contacts under the action of denounceing opening structure 304 and turns
On shaft housing 301.Shaft shell 301 is rotatably connected to idler wheel 320, described 314 one end of drag-line far from one end of conduction clamping plate 302
It is fixedly connected on conflict block 313, the other end is around idler wheel 320 and is fixedly connected on conduction clamping plate 302, utilizes idler wheel 320
The frictional force for reducing drawstring and shaft shell 301, so that drag-line 314 be made more easily to pull conflict block 313.
The implementation principle of the present embodiment are as follows: electrodynamic repulsion force can be generated when excessive by the electric current of short-circuiting device, in electronic reprimand
Moving contact 303 rotates clockwise under the action of power, so that moving contact 303 be made to separate with static contact.And outside moving contact 303 and shaft
301 shape of shell in an angle, then pushes conflict block 313 under the elastic force effect of Lock spring 315, contradicts conflict block 313
Moving contact 303, the rebound of moving contact 303 after electrodynamic repulsion force disappears after preventing moving contact 303 and static contact from separating.Electric current, which is crossed, to be touched
Hair buckle releaser rotates shaft shell 301 under the action of torsional spring 308, so that the route of the process of drag-line 314 is increased, thus right
Conflict block 313 applies pulling force, and conflict block 313 overcomes the elastic force of Lock spring 315 to far from conduction clamping plate under the action of pulling force
302 direction is mobile, so that conflict block 313 be made no longer to contradict moving contact 303, moving contact 303 is made no longer to contact at moving contact
303, and then moving contact 303 contacts on shaft shell 301 under the action of denounceing opening structure 304.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of moving contact structure of breaker of plastic casing, it is characterised in that: including shaft shell (301) and conduction clamping plate (302),
The shaft shell (301) is rotationally connected with conduction clamping plate (302), between the conduction clamping plate (302) and shaft shell (301)
Torsional spring (308) equipped with drive shaft shell (301) rotation, the conduction clamping plate (302) is hinged with moving contact (303), described
Shaft shell (301) is equipped with the reprimand opening structure (304) that driving moving contact (303) rotates and contacts at shaft shell (301), institute
State the direction of reprimand opening structure (304) driving moving contact (303) rotation direction and torsional spring (308) drive shaft shell (301) rotation
On the contrary, the shaft shell (301) is equipped with locking structure (305), the locking structure (305) includes being slidably connected to outside shaft
The conflict block (313) of shell (301), the drag-line (314) for being fixedly connected on conduction clamping plate (302) and conflict block (313) is contacted at
The Lock spring (315) of moving contact (303), the drag-line (314) are fixedly connected on conflict far from the one end of conduction clamping plate (302)
The one end of block (313) far from conduction clamping plate (302), described Lock spring (315) one end contact at conflict block (313) far from conductive
One end of clamping plate (302), the other end contact at rotation contact (303).
2. a kind of moving contact structure of breaker of plastic casing according to claim 1, it is characterised in that: the shaft shell
(301) it offers mounting groove (306), mounting groove (306) side wall is rotatably connected to first axle (307), the first axle
(307) conduction clamping plate (302) and the two is arranged in be rotatablely connected, the first axle (307) be arranged in moving contact (303) and
The two rotation connection, the moving contact (303) stretch out mounting groove (306) far from the one end of first axle (307).
3. a kind of moving contact structure of breaker of plastic casing according to claim 2, it is characterised in that: the reprimand opening structure
(304) include be articulated with shaft shell (301) pressing plate (309), driving pressing plate (309) rotation reprimand open spring (310) and
It is arranged in the second axis (311) of moving contact (303), the reprimand is opened spring (310) one end and contacted at shaft shell (301), another
End contacts at pressing plate (309) one end end face, and second axis (311) contacts at pressing plate (309) far from spring one end end face, works as institute
When stating moving contact (303) one end and contacting at mounting groove (306) bottom wall, the reprimand opens spring (310) and is in compressive state.
4. a kind of moving contact structure of breaker of plastic casing according to claim 3, it is characterised in that: the mounting groove
(306) bottom wall opens up sliding slot (316), and the conflict block (313) is slidably connected in sliding slot (316).
5. a kind of moving contact structure of breaker of plastic casing according to claim 4, it is characterised in that: the conflict block
(313) one end close to moving contact (303) is equipped with the first inclined-plane (317).
6. a kind of moving contact structure of breaker of plastic casing according to claim 5, it is characterised in that: first inclined-plane
(317) multiple anti-skid bulges (318) are offered.
7. a kind of moving contact structure of breaker of plastic casing according to claim 6, it is characterised in that: the shaft shell
(301) be rotatably connected to idler wheel (320) far from the one end of conduction clamping plate (302), described drag-line (314) one end be fixedly connected on to
Contact block (313), the other end is around idler wheel (320) and is fixedly connected on conduction clamping plate (302).
8. a kind of moving contact structure of breaker of plastic casing according to claim 7, it is characterised in that: the moving contact
(303) one end far from conduction clamping plate (302) is fixedly connected with the dynamic touch panel (321) of metal material, the dynamic touch panel (321)
Width is greater than the width of moving contact (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098468.7U CN209232714U (en) | 2019-01-22 | 2019-01-22 | A kind of moving contact structure of breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098468.7U CN209232714U (en) | 2019-01-22 | 2019-01-22 | A kind of moving contact structure of breaker of plastic casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209232714U true CN209232714U (en) | 2019-08-09 |
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ID=67510707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920098468.7U Active CN209232714U (en) | 2019-01-22 | 2019-01-22 | A kind of moving contact structure of breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209232714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600346A (en) * | 2019-09-04 | 2019-12-20 | 泓源电气（珠海）有限公司 | Circuit breaker contact structure convenient to installation |
-
2019
- 2019-01-22 CN CN201920098468.7U patent/CN209232714U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600346A (en) * | 2019-09-04 | 2019-12-20 | 泓源电气（珠海）有限公司 | Circuit breaker contact structure convenient to installation |
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