CN209056401U - A kind of lithium electricity brushless electric tool switch of band signal disjunction - Google Patents
A kind of lithium electricity brushless electric tool switch of band signal disjunction Download PDFInfo
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- CN209056401U CN209056401U CN201822108591.0U CN201822108591U CN209056401U CN 209056401 U CN209056401 U CN 209056401U CN 201822108591 U CN201822108591 U CN 201822108591U CN 209056401 U CN209056401 U CN 209056401U
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- contact
- handle
- electric tool
- brushless electric
- lithium electricity
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Abstract
The utility model discloses a kind of lithium electricity brushless electric tool of band signal disjunction switches, including pedestal, upper cover and handle, the upper cover covers on the pedestal, it further include contact and wiring board, the contact is moved with the handle, the conduction band matched with the contact is provided on the wiring board, signal wire is pierced by the upper cover after being connected with the wiring board, under normal condition, the contact is not contacted with the conduction band, at this time, control signal is not transferred to motor, when pressing the handle, conduction band described in the contact moving contact, the signal wire conducting, control signal passes to motor.Ours controls signal using the cooperation on-off of contact and conduction band, often rubs against between contact and conduction band, therefore contact surface will not generate oxidation, the resistance for avoiding contact with face is excessive.
Description
Technical field
The present invention relates to a kind of switch, more particularly, to a kind of disconnected double for the list of electric tool and similar appliances and take a message
The lithium electricity brushless electric tool switch of number disjunction.
Background technique
Previous electric tool is all to be directly accessed alternating current, the 220V when voltage of alternating current, so generally passing through switch
Electric current very little, present lithium electricity brushless electric tool largely rises within this several years, and lithium electricity brushless electric tool is all by pacifying thereon
The lithium electricity battery pack of dress is powered, therefore voltage declines to a great extent, and in the case where ensuring same power, electric current can be greatly increased.
Still such as former alternating current, no specific aim optimizes the switch of current electric tool, such as passes
Switch of the system on lithium electricity brushless electric tool and similar appliances is all using silver contact disjunction, specifically in signal disjunction
It is all to be easy pollution and oxidation in silver contact using silver contact, contact resistance is larger, and signal voltage and electric current are very small, institute
It is bad or obstructed that signal conduction is easily lead to the switch of silver contact point structure.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of lithium electricity brushless electric tool switch of band signal disjunction,
Signal disjunction is carried out using contact, is not in the bad or obstructed phenomenon of signal conduction.
The technical solution adopted by the present invention to solve the technical problems is: a kind of lithium electricity brushless electric work of band signal disjunction
Tool is covered on the pedestal with switch, including pedestal, upper cover, handle and limited block, the upper cover, and the handle is inserted on described
In the shell of lid and pedestal composition, described limited block one end penetrates the shell, and the handle penetrates the housing parts
It is provided with block, when needing lock handle, the block is oppositely arranged with the limited block, when needing to unlock, the gear
Block and the limited block mutual dislocation, further include contact and wiring board, the contact is moved with the handle, the route
The conduction band matched with the contact is provided on plate, signal wire is pierced by the upper cover, normal shape after being connected with the wiring board
Under state, the contact is not contacted with the conduction band, at this point, control signal is not transferred to motor, it is described when pressing the handle
Conduction band described in contact moving contact, the signal wire conducting, control signal pass to motor.We using contact and conduction band
Cooperate on-off to control signal, is often rubbed against between contact and conduction band, therefore contact surface will not generate oxidation, avoid contact with the electricity in face
It hinders excessive.
In above-mentioned technical proposal, it is preferred that be provided with fixed touching plate and gangway support, one end of the gangway support in the pedestal
Setting is provided with a springboard in each card slot, the bottom of each springboard is provided with movable contact, institute there are two card slot
Setting is stated on fixed touching plate there are two fixed contact, the bottom setting of the handle is provided with first in the blind hole there are two blind hole
Spring and sliding block, the sliding block hold out against the springboard under the action of first spring.
In above-mentioned technical proposal, it is preferred that further include second spring, the handle is arranged in described second spring one end
The other end of bottom, the second spring is arranged in the inner walls.
In above-mentioned technical proposal, it is preferred that there is the wraping plate bent towards sliding block at the top of the springboard.
In above-mentioned technical proposal, it is preferred that the contact is mounted on the end face that the handle protrudes into the housing parts
On, the wiring board is fixed on the cover.
In above-mentioned technical proposal, it is preferred that the contact is mounted on the back side one end for being located at the blind hole on the handle
On face, the handle protrudes on two faces adjacent with the end face where the contact on the housing parts and is provided with convex block,
The sliding slot matched with the convex block is provided on corresponding two opposite medial surfaces on the shell.Convex block and sliding slot are matched
Close, the sound contact of contact and lower section is completely separated, avoid lower section sound contact separation when generate spark pollution contact and
Wiring board leads to poor contact
The beneficial effects of the present invention are: there are two movable contact and two stationary contacts for our switch tool, therefore even if having
It wherein breaks down for one group, another set can also substitute work, therefore substantially increase stability of the invention.In addition we
Using the cooperation on-off of contact and conduction band control signal, often rubbed against between contact and conduction band, therefore contact surface will not generate
Oxidation, the resistance for avoiding contact with face are excessive.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is schematic cross-sectional view of the invention.
Perspective exploded view of the invention when Fig. 2.
Specific embodiment
Referring to Fig. 1-2, a kind of lithium electricity brushless electric tool switch of band signal disjunction, including pedestal 1, upper cover 2, handle
3 and limited block 4,2 sets of the upper cover on the pedestal 1, the handle 3 is inserted into the upper cover 2 and the pedestal 1 forms shell
In vivo, described 4 one end of limited block penetrates the shell, and the handle 3, which penetrates at the top of the housing parts, is provided with block 31
With contact 32.
When needing lock handle, the limited block 4 is pulled toward hull outside, the block is opposite with the limited block to be set
Set, at this time, we by handle in shell on time, block can be limited and blocked, therefore equipment can not start, need to unlock
When, the block and the limited block mutual dislocation, what at this time handle can be convenient presses.
Upper cover 2 is fixed with wiring board 21, and the contact 32 is moved with the handle 3, is arranged on the wiring board 21
The upper cover 2, normal shape are pierced by after having the conduction band 22 matched with the contact 32, signal wire 23 to be connected with the wiring board 21
Under state, the contact 32 is not contacted with the conduction band 22, at this point, control signal is not transferred to motor, presses the handle 3
When, conduction band 22 described in 32 moving contact of contact, the signal wire 23 is connected, and control signal passes to motor.
Ours controls signal using the cooperation on-off of contact and conduction band, often rubs against between contact and conduction band, therefore connect
Contacting surface will not generate oxidation, and the resistance for avoiding contact with face is excessive.
Fixed touching plate 5 and gangway support 6 are provided in the pedestal 1, there are two card slots for one end setting of the gangway support 6, often
A springboard 61 is provided in a card slot, the bottom of each springboard 61 is provided with movable contact 62, and the springboard 61 pushes up
Portion has the wraping plate 6a bent towards sliding block.There are two fixed contacts 51, the handle 3 to stretch for setting on the fixed touching plate 5
Enter housing parts setting there are two blind hole 31, is provided with the first spring 32 and sliding block 33, the sliding block in the blind hole 31
33 hold out against the springboard 61 under the action of the first spring 32.It further include second spring 7, one end of the second spring 7
It is touched with the bottom connection of handle 3, the other end of the second spring 7 and being in contact for 2 inner wall of upper cover.Second spring 7 mentions
Later restoring force is pressed for handle 3.
The handle 3 is protruded on two faces adjacent with the end face where the contact 32 on the housing parts and is provided with
Convex block 3a is provided with the sliding slot 1a matched with the convex block 3a on corresponding two opposite medial surfaces on the shell.
Claims (6)
1. a kind of lithium electricity brushless electric tool of band signal disjunction switchs, including pedestal, upper cover, handle and limited block, described
Upper cover covers on the pedestal, and the handle is inserted into the shell of the upper cover and pedestal composition, described limited block one end
Penetrate the shell, the handle penetrates the housing parts and is provided with block, when needing lock handle, the block with it is described
Limited block is oppositely arranged, when needing to unlock, the block and the limited block mutual dislocation, it is characterised in that: further include
Contact and wiring board, the contact are moved with the handle, are provided on the wiring board and are matched with the contact
Conduction band, signal wire are pierced by the upper cover after being connected with the wiring board, under normal condition, the contact does not connect with the conduction band
Touching, at this point, control signal is not transferred to motor, when pressing the handle, conduction band described in the contact moving contact, the letter
The conducting of number line, control signal pass to motor.
2. a kind of lithium electricity brushless electric tool of band signal disjunction according to claim 1 switchs, it is characterised in that: institute
It states and is provided with fixed touching plate and gangway support in pedestal, there are two card slot, each card slot internal frames for one end setting of the gangway support
Equipped with a springboard, the bottom of each springboard is provided with movable contact, and there are two fixed contacts for setting on the fixed touching plate, described
The bottom setting of handle is provided with the first spring and sliding block in the blind hole, the sliding block is in first bullet there are two blind hole
The springboard is held out against under the action of spring.
3. a kind of lithium electricity brushless electric tool of band signal disjunction according to claim 1 switchs, it is characterised in that: also
Including second spring, the bottom of the handle is arranged in described second spring one end, and the other end setting of the second spring exists
In the inner walls.
4. a kind of lithium electricity brushless electric tool of band signal disjunction according to claim 2 switchs, it is characterised in that: institute
Stating at the top of springboard has the wraping plate bent towards sliding block.
5. a kind of lithium electricity brushless electric tool of band signal disjunction according to claim 1 switchs, it is characterised in that: institute
It states contact and is mounted on the handle and protrude on an end face of the housing parts, the wiring board is fixed on the cover.
6. a kind of lithium electricity brushless electric tool of band signal disjunction according to claim 2 switchs, it is characterised in that: institute
State contact be mounted on the handle positioned at the blind hole one end face of back side on, the handle protrude on the housing parts with
End face where the contact is provided with convex block on two adjacent faces, on the shell on corresponding two opposite medial surfaces
It is provided with the sliding slot matched with the convex block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108591.0U CN209056401U (en) | 2018-12-17 | 2018-12-17 | A kind of lithium electricity brushless electric tool switch of band signal disjunction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108591.0U CN209056401U (en) | 2018-12-17 | 2018-12-17 | A kind of lithium electricity brushless electric tool switch of band signal disjunction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209056401U true CN209056401U (en) | 2019-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822108591.0U Active CN209056401U (en) | 2018-12-17 | 2018-12-17 | A kind of lithium electricity brushless electric tool switch of band signal disjunction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209056401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023217264A1 (en) * | 2022-05-13 | 2023-11-16 | 博世电动工具（中国）有限公司 | Rotary reversing switch and switch assembly for electric tool |
-
2018
- 2018-12-17 CN CN201822108591.0U patent/CN209056401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023217264A1 (en) * | 2022-05-13 | 2023-11-16 | 博世电动工具（中国）有限公司 | Rotary reversing switch and switch assembly for electric tool |
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