CN209232616U - A kind of electric tool switch of while compatible high current disjunction and micro-current sampling - Google Patents
A kind of electric tool switch of while compatible high current disjunction and micro-current sampling Download PDFInfo
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- CN209232616U CN209232616U CN201822259715.5U CN201822259715U CN209232616U CN 209232616 U CN209232616 U CN 209232616U CN 201822259715 U CN201822259715 U CN 201822259715U CN 209232616 U CN209232616 U CN 209232616U
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- push rod
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Abstract
The utility model discloses the electric tool switch of a kind of while compatible high current disjunction and micro-current sampling, including handle, shell and push rod, the handle rotation connection is on the housing, described push rod one end is rotatably connected on the handle, the other end of the push rod protrudes into the shell, sliding block is provided in the shell, spring is provided between the other end of the push rod and the sliding block, u-shaped spring is provided on the sliding block, the both ends of the u-shaped spring are supported on the housing respectively, it further include contact and wiring board, the contact is moved with the push rod, the conduction band matched with the contact is provided on the wiring board, signal wire is pierced by the shell after being connected with the wiring board.
Description
Technical field
The present invention relates to a kind of switch, sample more particularly, to a kind of while compatible high current disjunction with micro-current electronic
Tool switch.
Background technique
Previous electric tool is all to be directly accessed alternating current, and the voltage of alternating current is 220V~or 110V~left and right, institute
Smaller with the electric current generally by switch, this several years battery type brushless electric tools largely rise, battery type brushless electric tool
It is all to power by the lithium electricity battery pack installed thereon, therefore voltage is lower, in the case where ensuring same power, electric current can be very
Greatly.
Current battery formula electric tool switch is still such as former alternating current, and no specific aim optimizes, example
The switch being such as conventionally used on battery type brushless electric tool and similar appliances, in signal disjunction, or using silver contact point
It is disconnected, but silver contact surface is easy pollution and oxidation, and contact resistance is larger, and signal voltage and electric current are very small, so silver touching
It is bad or obstructed that the switch of point structure easilys lead to signal conduction.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provide a kind of while compatible high current disjunction sampled with micro-current it is electronic
Tool switch carries out signal disjunction using the combination of brush and wiring board, and being not in that signal conduction is bad or obstructed shows
As.
The technical solution adopted by the present invention to solve the technical problems is a kind of while compatible high current disjunction and micro-current
The electric tool switch of sampling, including handle, shell and push rod, the handle are rotatablely connected on the housing, the push rod
One end is rotatably connected on the handle, and the other end of the push rod protrudes into the shell, is provided with sliding block in the shell,
It is provided with spring between the other end of the push rod and the sliding block, u-shaped spring, the u-shaped spring are provided on the sliding block
Both ends support respectively on the housing, it is characterised in that: further include contact and wiring board, the contact is with the push rod
It moves, is provided with the conduction band matched with the contact on the wiring board, signal wire is pierced by institute after being connected with the wiring board
State shell, under normal condition, the contact is not contacted with the conduction band, at this point, control signal is not transferred to motor, stirs institute
When stating handle, conduction band described in the contact moving contact, the signal wire conducting controls signal and passes to motor.Our benefit
Signal is controlled with the cooperation on-off of contact and conduction band, is often rubbed against between contact and conduction band, therefore contact surface will not generate oxidation,
The resistance for avoiding contact with face is excessive.
In above-mentioned technical proposal, it is preferred that be provided with two pieces of springboards on the sliding block, be provided with two on every piece of springboard
A movable contact, fixed there are two fixed touching plate on the shell, the shell is stretched out in one end of the fixed touching plate, the fixed touching plate
The other end protrudes into the shell, and each fixed touching plate protrudes into the part tool of the shell, and there are two block, each blocks
On be provided with a fixed contact, original state, the movable contact on springboard is all separated with fixed contact, when sliding slider, the springboard
On movable contact be in contact with fixed contact, circuit is conducted.
In above-mentioned technical proposal, it is preferred that further include magnet, the magnet has two pieces, and one block of magnet is arranged two
Right side on two fixed touching plates is arranged in the fixed contact middle position of a fixed touching plate upper left side, another block of magnet
Fixed contact middle position.
In above-mentioned technical proposal, it is preferred that further include a handle pushing block, the handle pushing block is rotatably connected on the hand
On handle, confined planes are provided on the shell, when rotating the handle to certain angle, one end of the handle is stuck in the limit
On plane.
In above-mentioned technical proposal, it is preferred that be provided with diode between two fixed touching plates.
In above-mentioned technical proposal, it is preferred that further include push rod spring, the push rod spring covers on the push rod, described
One end of push rod spring is resisted against the end that push rod protrudes into described shell one end, and the other end of the push rod spring is resisted against described
On shell.
The beneficial effects of the present invention are: there are two one group of electricity of movable contact and two stationary contact disjunctions simultaneously for our switch tool
Road, therefore wherein break down for one group even if having, another set can also substitute work, therefore substantially increase of the invention steady
It is qualitative.Meanwhile the ability of two groups of contact breaking currents increases one times, the occasion for adapting to direct current electric power tools high current uses.
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
Oxidation will not be generated, the resistance for avoiding contact with face is excessive.In addition the addition of magnet, we can eliminate contact and disconnect moment generation
Electric arc.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is stereoscopic schematic diagram of the present invention.
Fig. 2 is top view of the invention.
Fig. 3 be Fig. 2 along the sectional view of A-A.
Fig. 4 is cross-sectional view of the Fig. 2 along B-B.
Fig. 5 is the schematic diagram of another angle of the present invention (shell is hidden).
Fig. 6 is the schematic diagram of another angle of the present invention (case top is hidden).
Specific embodiment
Referring to Fig. 1-6, the electric tool switch of a kind of while compatible high current disjunction and micro-current sampling, including handle 1,
Shell 2 and push rod 3, the handle 1 are rotatably connected on the shell 2, and described 3 one end of push rod is rotatably connected on the handle 1
On, the other end of the push rod 3 protrudes into the shell 2.
It is provided with sliding block 4 in the shell 2, a push rod spring 31 is cased on the push rod 3, the push rod spring 31
One end is resisted against the end that push rod 3 protrudes into described 2 one end of shell, and the other end of the push rod spring 31 is resisted against the shell 2
On.U-shaped bullet 41 is provided on the sliding block 4, the both ends of the u-shaped spring 41 are against respectively on the shell 2.
It further include contact 61 and wiring board 62, the contact 61 is moved with the push rod 3, is set on the wiring board 62
It is equipped with the conduction band 63 matched with the contact 61, signal wire 64 is pierced by the shell 2 after being connected with the wiring board 62, normally
Under state, the contact 61 is not contacted with the conduction band 63, at this point, control signal is not transferred to motor, stirs the handle
When, conduction band 63 described in 61 moving contact of contact, the signal wire 64 is connected, and control signal passes to motor.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.
Two pieces of springboards 42 are provided on the sliding block 4, there are two movable contacts 421 for setting on every piece of springboard 42, described
Fixed there are two fixed touching plate 7 on shell 2, one end of the fixed touching plate 7 is stretched out the shell 2, is set between two fixed touching plates 7
It is equipped with diode 73.The other end of the fixed touching plate 7 protrudes into the shell 2, and each fixed touching plate 7 protrudes into the shell 2
Part tool is provided with a fixed contact 72 there are two block 71 on each block 71, original state, the movable contact on springboard
It is all separated with fixed contact, when sliding slider, the movable contact on the springboard is in contact with fixed contact, and circuit is conducted.
It further include magnet 8, the magnet 8 has two pieces, and two fixed touching plate upper left sides are arranged in one block of magnet
The fixed contact middle position on right side on two fixed touching plates is arranged in fixed contact middle position, another block of magnet.
It further include a handle pushing block 9, the handle pushing block 9 is rotatably connected on the handle 1, is set on the shell 2
It is equipped with confined planes 2a, when rotating the handle to certain angle, one end of the handle is stuck on the confined planes.
Claims (5)
1. the electric tool switch of a kind of while compatible high current disjunction and micro-current sampling, including handle, shell and push rod, institute
State handle rotation connection on the housing, described push rod one end is rotatably connected on the handle, the other end of the push rod
It protrudes into the shell, sliding block is provided in the shell, is provided with spring between the other end of the push rod and the sliding block,
U-shaped spring is provided on the sliding block, the both ends of the u-shaped spring are supported on the housing respectively, it is characterised in that: further include
Contact and wiring board, the contact are moved with the push rod, are provided on the wiring board and are matched with the contact
Conduction band, signal wire are pierced by the shell 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 stirring the handle, conduction band described in the contact moving contact, the letter
The conducting of number line, control signal pass to motor.
2. the electric tool switch of according to claim 1 a kind of while compatible high current disjunction and micro-current sampling,
It is characterized in that: being provided with two pieces of springboards on the sliding block, setting is solid on the shell there are two movable contact on every piece of springboard
The shell is stretched out in one end of fixed touching plate there are two fixed, the fixed touching plate, and the other end of the fixed touching plate protrudes into the shell, often
A fixed touching plate protrudes into the part tool of the shell there are two block, is provided with a fixed contact on each block.
3. the electric tool switch of according to claim 2 a kind of while compatible high current disjunction and micro-current sampling,
It is characterized in that: further including magnet, the magnet has two pieces, and determining for two fixed touching plate upper left sides is arranged in one block of magnet
The fixed contact middle position on right side on two fixed touching plates is arranged in contact middle position, another block of magnet.
4. the electric tool switch of according to claim 2 a kind of while compatible high current disjunction and micro-current sampling,
It is characterized in that: further including a handle pushing block, the handle pushing block is rotatably connected on the handle, is provided on the shell
Confined planes, when rotating the handle to certain angle, one end of the handle is stuck on the confined planes.
5. the electric tool switch of according to claim 2 while compatible high current disjunction and micro-current sampling, feature
It is: is provided with diode between two fixed touching plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259715.5U CN209232616U (en) | 2018-12-30 | 2018-12-30 | A kind of electric tool switch of while compatible high current disjunction and micro-current sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259715.5U CN209232616U (en) | 2018-12-30 | 2018-12-30 | A kind of electric tool switch of while compatible high current disjunction and micro-current sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209232616U true CN209232616U (en) | 2019-08-09 |
Family
ID=67509919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822259715.5U Active CN209232616U (en) | 2018-12-30 | 2018-12-30 | A kind of electric tool switch of while compatible high current disjunction and micro-current sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209232616U (en) |
-
2018
- 2018-12-30 CN CN201822259715.5U patent/CN209232616U/en active Active
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