CN206163371U - Exchange speed governing switch - Google Patents
Exchange speed governing switch Download PDFInfo
- Publication number
- CN206163371U CN206163371U CN201621025258.8U CN201621025258U CN206163371U CN 206163371 U CN206163371 U CN 206163371U CN 201621025258 U CN201621025258 U CN 201621025258U CN 206163371 U CN206163371 U CN 206163371U
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- CN
- China
- Prior art keywords
- base
- speed regulation
- regulation switch
- push rod
- limiting section
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- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model discloses an exchange speed governing switch, include: base and apron, reversing mechanism, contact system and speed control mechanism, contact system includes the push rod, be provided with compression spring between push rod and the base to and fixed the setting movable support on the base is in with the setting movable support two last movable contact springs, movable support with be provided with shockproof structure between the movable contact spring, the movable contact spring with the aid of shockproof structure can not follow the last shake of movable support falls, and the movable contact spring is fixed in can entering into movable support just, and when nevertheless receiving vibrations, because it is inaccurate like the directional application of force to shake the orientation of the power of production, so the movable contact spring is difficult to come off in movable support. Through the setting of above jar -proof structure, further guaranteed the utility model discloses a high -power exchange speed governing switch's reliability.
Description
Technical field
The utility model is related to low voltage electrical apparatus technology field, and in particular to a kind of AC speed regulation switch.
Background technology
AC speed regulation switch tool have been widely used, it is main be be applied in electric tool, to adjust electronic work
The power output of tool.
Existing AC speed regulation switch frequently encounters in actual use complex operating mode, such as need during use
Will unusual fluctuation repeatedly, or there are violent vibrations after electric tool runs into reaction force, which results in and arranged on dynamic support
Movable contact spring easily come off so that AC speed regulation switch fail cisco unity malfunction.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome in AC speed regulation switch of the prior art to exist
Practical process in AC speed regulation switch easily fail the technological deficiency of cisco unity malfunction.
To solve above-mentioned technical problem, the utility model provides a kind of AC speed regulation switch, including：
Base and cover plate, changement, contact system and speed adjusting gear；
The contact system includes push rod, and compression spring is provided between the push rod and base, and is fixedly installed on
Dynamic support on the base and two movable contact springs being arranged on the dynamic support, between the dynamic support and the movable contact spring
Shockproof structure is provided with, the movable contact spring can not be shaken off by means of the shockproof structure from the dynamic support.
In above-mentioned AC speed regulation switch, the movable contact spring is bending structure, and the shockproof structure is described including being arranged on
The recess of the both sides of movable contact spring crooked place, and it is molded over the stop of the evagination that the correspondence recess is arranged on the dynamic support
Portion.
In above-mentioned AC speed regulation switch, in the contact system also include wiring board, the wiring board by with thereon
The controllable silicon of setting electrically connects the static contact that the dynamic support and relatively described dynamic support are fixedly installed；The controllable silicon has three
Individual pin, wherein the first pin electrically connects the wiring board, second pin and the 3rd pin stretch out respectively the wiring board and divide
Do not weld in the dynamic support and static contact.
In above-mentioned AC speed regulation switch, also include the limit assembly for limiting the pushrod movement position.
In above-mentioned AC speed regulation switch, the limit assembly includes being arranged on the first limiting section above the base,
First limiting section is hierarchic structure, and the flange being engaged with first limiting section is provided with the push rod.
In above-mentioned AC speed regulation switch, the position limiting structure is also spacing including second be arranged on below the base
Portion, second limiting section is to continue to press down on and to the stop part of both sides skew for push rod described in backstop.
In above-mentioned AC speed regulation switch, interior plastic is provided with the base, second limiting section is molded over described
On interior plastic.
In above-mentioned AC speed regulation switch, the push rod is fixedly connected with handle, and the position limiting structure also includes being arranged on
The 3rd limiting section on the base, the 3rd limiting section forms buckle with the handle, continues for limiting the handle
Reset upwards.
In above-mentioned AC speed regulation switch, also including dustproof construction, the dustproof construction includes：It is fixedly installed on described pushing away
Dust ring on bar, the dust ring is in step-like, and the corresponding dust ring of the base is provided with step-like opening.
In above-mentioned AC speed regulation switch, the dustproof construction also includes：It is arranged on anti-between the base and plastic
Dirt groove, and the dust-proof isolation part that the only permission plug of the interface shaping of the plastic correspondence base passes through.
Technical solutions of the utility model, have the advantage that：
1. in the AC speed regulation switch that the utility model is provided, the movable contact spring can not be from institute by means of the shockproof structure
State and shaken off on support.Movable contact spring can just be entered in dynamic support and fixed, but when being given a shock, because vibrations are produced
To be not as orientation force equally accurate the direction of power, therefore movable contact spring is not easy to be come off in driven carriage.It is shockproof by more than
Structure setting, further ensure the reliability of high power AC speed-regulating switch of the present utility model.
2. in the AC speed regulation switch that the utility model is provided, by first limiting section, the second limiting section and the 3rd
The setting of limiting section so that push rod can be fixed in the extreme position for pressing downward to, it is also possible to which the position for resetting upwards again is fixed,
And will not shift in motion process, so that voltage is more stable in speed regulation process.
3. in the AC speed regulation switch that the utility model is provided, the dustproof construction includes：It is fixedly installed on the push rod
On dust ring, in step-like, the base correspondence dust ring is provided with step-like opening to the dust ring.It is described anti-
Dirt structure also includes：The dustproof groove being arranged between the base and plastic, and the interface of the plastic correspondence base
The dust-proof isolation part that the only permission plug of place's shaping passes through.The setting of the dustproof construction so that at the arbitrary opening on base all
Dust is not easily accessed, even if still have interior plastic to carry out second into after dust protect again, the friendship of the present embodiment is ensured that
Stream speed-regulating switch can adapt to the larger operating mode of dust, and its reliability and service life are also longer.
Description of the drawings
In order to be illustrated more clearly that the utility model specific embodiment or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the exploded perspective view of AC speed regulation switch in embodiment of the present utility model 1；
Fig. 2 is the enlarged diagram that support and movable contact spring are moved in Fig. 1.
Description of reference numerals：
1- bases；2- cover plates；3- push rods；12- moves support；13- movable contact springs；131- recesses；121- stop parts；4- handles；
31- dust rings.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than the embodiment of whole.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " is, based on orientation shown in the drawings or position relationship, to be only
For the ease of describe the utility model and simplify description, rather than indicate or imply indication device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As long as additionally, technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict just can be combined with each other.
Embodiment 1
With reference to Fig. 1 and Fig. 2, the present embodiment provides a kind of AC speed regulation switch, mainly includes：Base 1 and cover plate 2, commutation
Mechanism, contact system and speed adjusting gear；The contact system includes push rod 3, and compression is provided between the push rod 3 and base 1
Spring, and the dynamic support 12 being fixedly installed on the base 1 and two movable contact springs 13 being arranged on the dynamic support 12,
Be provided with shockproof structure between the dynamic support 12 and the movable contact spring 13, the movable contact spring 13 by means of the shockproof structure not
Can shake off from the dynamic support 12.
Above-mentioned embodiment is the core technology scheme of the present embodiment, the movable contact spring 13 by means of the shockproof structure not
Can shake off from the dynamic support 12.Movable contact spring 13 can just be entered in dynamic support 12 and fixed, but when being given a shock,
Due to vibrations produce power direction be not as orientation force it is equally accurate, therefore movable contact spring 13 be not easy in driven carriage take off
Fall.The setting of shockproof structure, further ensures the reliability of high power AC speed-regulating switch of the present utility model by more than
Property.
As one kind preferred embodiment, the movable contact spring 13 is bending structure, and the shockproof structure includes being arranged on
The recess 131 of the both sides of the crooked place of the movable contact spring 13, and be molded on the dynamic support 12 the correspondence recess 131 and set
The stop part 121 of the evagination put.Less gap is kept between the recess 131 and movable contact spring 13, dynamic touching is further ensured
Piece is not easy the abjection from recess 131.
In order that the AC speed regulation switch structure of the present embodiment is compacter, and it is more reliable to work, in the present embodiment,
Also include wiring board in the contact system, the wiring board is by electrically connecting the dynamic support 12 with the controllable silicon for arranging thereon
The static contact that relatively described dynamic support 12 is fixedly installed；The controllable silicon has three pins, wherein the electrical connection of the first pin
The wiring board, second pin and the 3rd pin stretch out respectively the wiring board and weld respectively at the dynamic support 12 and static contact
Connect.Wiring board by the way that two pins on controllable silicon are extended so that second pin and the 3rd pin can directly respectively and
The mode that welding is respectively adopted between dynamic support 12, static contact is arranged, compared to practical lead or other stampings in prior art
Connected mode, the present embodiment AC speed regulation switch connection have the advantages that connection reliability, compact conformation, be easily assembled.
In order that voltage is more stable in speed regulation process, in the present embodiment by the movement position of considered critical push rod 3 come
Ensure the stability of voltage, specifically, the AC speed regulation switch of the present embodiment is also included for limiting the motion bit of the push rod 3
The limit assembly put.The limit assembly includes being arranged on the first limiting section of the top of the base 1, and first limiting section is
Hierarchic structure, is provided with the flange being engaged with first limiting section on the push rod 3.The position limiting structure also includes arranging
The second limiting section below the base 1, second limiting section be continue to press down on for push rod described in backstop 3 and to
The stop part of both sides skew.Interior plastic is provided with the base 1, second limiting section is molded on the interior plastic.Institute
State push rod 3 to be fixedly connected with handle 4, the position limiting structure also includes being arranged on the 3rd limiting section on the base 1, described the
Three limiting sections form buckle with the handle 4, and for limiting the handle reset is continued up.
By the setting of first limiting section, the second limiting section and the 3rd limiting section so that push rod 3 can be pressed downward
The extreme position for entering is fixed, it is also possible to which the position for resetting upwards again is fixed, and will not be shifted in motion process.But need
To illustrate that：Although it is a kind of real that the first limiting section, the second limiting section and the 3rd limiting section are only gived in above-mentioned embodiment
Mode is applied, but its set-up mode has various ways, and here can not be repeated one by one, and those skilled in the art can be as described above
The concrete structure and set location of the first limiting section, the second limiting section and the 3rd limiting section are deformed accordingly, it should be still
Belong to the equivalent technical solutions of above-mentioned embodiment.
Additionally, the AC speed regulation switch of this enforcement also includes dustproof construction, the dustproof construction includes：It is fixedly installed on institute
The dust ring 31 on push rod 3 is stated, the dust ring 31 is in step-like, and the correspondence of the base 1 dust ring 31 is provided with step
The opening of shape.The dustproof construction also includes：The dustproof groove being arranged between the base 1 and plastic, and the plastic pair
The dust-proof isolation part for answering the only permission plug that the interface of the base 1 is molded to pass through.The setting of the dustproof construction causes bottom
Dust is all not easily accessed at arbitrary opening on seat 1, even if still have interior plastic to carry out second into after dust protect again, so as to
The AC speed regulation switch that ensure that the present embodiment can adapt to the larger operating mode of dust, and its reliability and service life are also longer.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing the protection domain created still in the utility model.
Claims (10)
1. a kind of AC speed regulation switch, including：
Base (1) and cover plate (2), changement, contact system and speed adjusting gear；
It is characterized in that：
The contact system includes push rod (3), and compression spring is provided between the push rod (3) and base (1), and fixation sets
The dynamic support (12) on the base (1) and two movable contact springs (13) being arranged on the dynamic support (12) are put, it is described dynamic
Be provided with shockproof structure between support (12) and the movable contact spring (13), the movable contact spring (13) by means of the shockproof structure not
Can shake off from the dynamic support (12).
2. AC speed regulation switch according to claim 1, it is characterised in that：
The movable contact spring (13) is bending structure, and the shockproof structure includes being arranged on the two of the movable contact spring (13) crooked place
The recess (131) of side, and it is molded over the stop part of the evagination that the correspondence recess (131) is arranged on the dynamic support (12)
(121)。
3. AC speed regulation switch according to claim 1 and 2, it is characterised in that：
Also include wiring board in the contact system, the wiring board is by electrically connecting described dynamic with the controllable silicon for arranging thereon
The static contact that frame (12) and relatively described dynamic support (12) are fixedly installed；The controllable silicon has three pins, wherein first draws
Pin electrically connects the wiring board, and second pin and the 3rd pin stretch out respectively the wiring board and respectively at the dynamic support (12)
With static contact welding.
4. AC speed regulation switch according to claim 1 and 2, it is characterised in that：
Also include the limit assembly for limiting the push rod (3) movement position.
5. AC speed regulation switch according to claim 4, it is characterised in that：
The limit assembly includes being arranged on the first limiting section above the base (1), and first limiting section is ladder knot
Structure, on the push rod (3) flange being engaged with first limiting section is provided with.
6. AC speed regulation switch according to claim 4, it is characterised in that：
The position limiting structure also includes being arranged on the second limiting section below the base (1), second limiting section be for
Push rod described in backstop (3) continues to press down on and to the stop part of both sides skew.
7. AC speed regulation switch according to claim 6, it is characterised in that：
Interior plastic is provided with the base (1), second limiting section is molded on the interior plastic.
8. AC speed regulation switch according to claim 4, it is characterised in that：
The push rod (3) is fixedly connected with handle (4), and the position limiting structure also includes the 3rd be arranged on the base (1)
Limiting section, the 3rd limiting section forms buckle with the handle (4), and for limiting the handle reset is continued up.
9. AC speed regulation switch according to claim 1 and 2, it is characterised in that：
Also include dustproof construction, the dustproof construction includes：The dust ring (31) being fixedly installed on the push rod (3), it is described
In step-like, base (1) correspondence dust ring (31) is provided with step-like opening to dust ring (31).
10. AC speed regulation switch according to claim 9, it is characterised in that：
The dustproof construction also includes：It is arranged on dustproof groove of the base (1) and plastic between, and plastic correspondence institute
State the dust-proof isolation part that the only permission plug of the interface shaping of base (1) passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621025258.8U CN206163371U (en) | 2016-08-31 | 2016-08-31 | Exchange speed governing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621025258.8U CN206163371U (en) | 2016-08-31 | 2016-08-31 | Exchange speed governing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206163371U true CN206163371U (en) | 2017-05-10 |
Family
ID=58650925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621025258.8U Active CN206163371U (en) | 2016-08-31 | 2016-08-31 | Exchange speed governing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206163371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020142895A1 (en) * | 2019-01-08 | 2020-07-16 | 深圳拓邦股份有限公司 | Electronic device, printed circuit board, and electrical tool |
-
2016
- 2016-08-31 CN CN201621025258.8U patent/CN206163371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020142895A1 (en) * | 2019-01-08 | 2020-07-16 | 深圳拓邦股份有限公司 | Electronic device, printed circuit board, and electrical tool |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |