CN110033965A - Capacitance setting method and speed-regulating switch of electric tool applied to electric tool switch - Google Patents
Capacitance setting method and speed-regulating switch of electric tool applied to electric tool switch Download PDFInfo
- Publication number
- CN110033965A CN110033965A CN201910366368.2A CN201910366368A CN110033965A CN 110033965 A CN110033965 A CN 110033965A CN 201910366368 A CN201910366368 A CN 201910366368A CN 110033965 A CN110033965 A CN 110033965A
- Authority
- CN
- China
- Prior art keywords
- shell
- capacitor
- pcb board
- stitch
- switch
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
Abstract
The present invention relates to a kind of capacitance setting methods and speed-regulating switch of electric tool applied to electric tool switch, and wherein method includes being suspended in capacitor outside pcb board for being welded on the corresponding connection terminal in pcb board edge after 90 ° of stitch bending of capacitor；It is mounted on shell rim on one side by what pcb board was provided with capacitor, a hollow positioning shell corresponding with capacitor is connected on shell, only stays the narrow slit that the stitch for capacitor passes through between positioning shell and shell；The capacitor is fixed in positioning shell, the stitch of capacitor is placed in shell and positions in the narrow slit between shell.By capacitor being fixed in the positioning shell outside shell, it is substantially isolated capacitor except shell, to eliminate threat of the capacitor fever to switch steady operation, while using the positioning shell fixed capacity being fixedly connected on housing exterior walls, it is ensured that capacitor stitch is not damaged.
Description
Technical field:
The invention belongs to electric tool switch fields, and in particular to a kind of capacitor setting side applied to electric tool switch
Method and speed-regulating switch of electric tool.
Background technique:
For the switch of electric tool due to the limitation of itself installation space, that usually does is very compact, empty inside switch case
Between it is narrow, Internal PCB heat dissipation effect is poor, therefore, it will usually increase cooling fin in hull outside, and open up heat dissipation on shell
Hole is made outside a part exposing and the shell of the heater element such as metal-oxide-semiconductor on pcb board, by the setting to shell shape with heat dissipation
Piece contact, by the heat of cooling fin quick release heater element, so that effectively control switch internal operating temperature, improves switch
Stability, extend switch service life.
But it is connected to the capacitor on pcb board, since its contour structures is not suitable for radiating using cooling fin, and its
Stitch is weak, therefore still closes inside housings, and the heat that capacitor generates can only be by being discharged outward indirectly by shell, but is opened
Pass shell generallys use plastics and is made, and radiating efficiency is slow, therefore the fever of capacitor becomes the chief threat of switch steady operation.
Summary of the invention:
Present invention technical problems to be solved first are: providing a kind of capacitor setting side applied to electric tool switch
Capacitor is arranged using this method in method, can eliminate influence of the capacitor fever to switch enclosure interior pcb board steady operation.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: the capacitor applied to electric tool switch is set
Method being set, including will be welded on the corresponding connection terminal in pcb board edge after 90 ° of stitch bending of capacitor, being suspended in capacitor
Outside pcb board；Be mounted on shell rim on one side for what pcb board was provided with capacitor, connected on shell one it is corresponding with capacitor in
Empty positioning shell positions and only stays the narrow slit that the stitch for capacitor passes through between shell and shell；It is fixed that the capacitor is fixed at
In the shell of position, the stitch of capacitor is placed in shell and positions in the narrow slit between shell.
The beneficial effect of the technical program is: by capacitor being fixed in the positioning shell outside shell, make capacitor substantially every
From except shell, to eliminate threat of the capacitor fever to switch steady operation, while using and being fixedly connected on housing exterior walls
On positioning shell fixed capacity, it is ensured that capacitor stitch is not damaged.
The further technical problems to be solved of the present invention are: providing a kind of electric tool that capacitor heat is isolated with pcb board
Speed-regulating switch extends switch service life to improve switching stability.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: speed-regulating switch of electric tool, including switch housing
Body, push rod and pcb board, the push rod slide in the push-rod hole being plugged in housing sidewall, and push rod one end is inserted into shell,
The other end stretches out outside shell, wiping piece is provided on the intracorporal push rod of shell, the pcb board is fixed in shell, PCB
The golden finger opposite with wiping piece is provided on plate, the push rod pushes wiping piece to contact or separate with golden finger, the pcb board
One side edge be provided with capacitance connection terminal, be connected with capacitor on capacitance connection terminal, capacitor passes through its stitch bending rear overhang
It is placed in outside pcb board, the pcb board is provided with the lateral edge case inside wall edge setting of capacitor, is suspended in capacitor outside shell
Portion, position corresponding with capacitor is connected with a hollow positioning shell on the housing exterior walls, offers in the housing sidewall
The narrow slit passed through for capacitor stitch being connected to inside positioning shell, capacitor are fixed in positioning shell, and the stitch of capacitor is worn
Narrow slit is crossed to be connected on the connection terminal at pcb board edge.
As a preferred embodiment, several through-holes are offered on the positioning shell, is convenient for air circulation.
As a preferred embodiment, the shell includes base and cover plate, and the positioning shell includes bottom case and lid shell, bottom case
On the base, lid shell connects on the cover board for connection.
The beneficial effect of the technical program is: capacitor being fixed in the positioning shell outside shell, capacitor is substantially isolated
Except shell, to eliminate threat of the capacitor fever to switch steady operation, while using and being fixedly connected on housing exterior walls
Position shell fixed capacity, it is ensured that capacitor stitch is not damaged.
Further, by the way that through-hole is arranged on positioning shell, speed-up capacitor heat distributes the technical program, improves capacitor
Job stability and service life.
Further, the technical program is by the reasonably optimizing to zoarium and positioning shell structure, so that pcb board and capacitor peace
More convenient when being attached in shell, the structure of shell and positioning shell is simple, install convenient.
Detailed description of the invention:
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the explosive view of speed-regulating switch of electric tool of the present invention；
Fig. 2 is the structural schematic diagram of PCB of the present invention Yu push rod forward surface；
In Fig. 1 and Fig. 2: 1, capacitor, 2, pcb board, 3, shell, 3-1, pedestal, 3-2, cover board, 4, positioning shell, 4-1, bottom case,
4-2, lid shell, 5, narrow slit, 6, push rod, 7, push-rod hole, 8, wiping piece, 9, golden finger, 10, capacitance connection terminal, 11, through-hole.
Specific embodiment:
With reference to the accompanying drawing, detailed description of the present invention specific embodiment.
Embodiment 1:
The present embodiment is described in detail by taking speed-regulating switch of electric tool shown in FIG. 1 as an example and is applied to electric tool switch
Capacitance setting method.
As shown in Figure 1, this method includes that will be welded on the corresponding connection in 2 edge of pcb board after 90 ° of stitch bending of capacitor 1
On terminal, it is suspended in capacitor 1 outside pcb board 2；It is mounted on 3 edge of shell on one side by what pcb board 2 was provided with capacitor 1, in shell 3
One hollow positioning shell 4 corresponding with capacitor 1 of upper connection positions and only stays the stitch for capacitor 1 to pass through between shell 4 and shell 1
Narrow slit 5；The capacitor 1 is fixed in positioning shell 4, the stitch of capacitor 1 is placed in shell 3 and positions narrow between shell 4
In seam 5.
In the present embodiment, shell 3 and fixed visitor 4 can require to be designed to according to actual installation as shown in Figure 1 split type,
In order to the installation of capacitor 1 and pcb board 2.
Working principle of the present invention is: by being fixed on capacitor 1 in the positioning shell 4 outside shell 3, being substantially isolated capacitor 1
Except shell 3, to eliminate threat of the fever of capacitor 1 to switch steady operation, while using and being fixedly connected on 3 outer wall of shell
On 4 fixed capacity 1 of positioning shell, it is ensured that 1 stitch of capacitor is not damaged.
Embodiment 2:
A kind of speed-regulating switch of electric tool as depicted in figs. 1 and 2, including switch case 3, push rod 6 and pcb board 2, institute
6 sliding plug of push rod is stated in the push-rod hole 7 on 3 side wall of shell, 6 one end of push rod is inserted into shell 3, and the other end stretches out shell
Outside 3, wiping piece 8 is provided on the push rod 6 in shell 3, the pcb board 2 is fixed in shell 3, sets on pcb board 2
It is equipped with the golden finger 9 opposite with wiping piece 8, the push rod 6 pushes wiping piece 8 to contact or separate with golden finger 9, realizes switch
Opening and closing and speed regulation, which is characterized in that the one side edge of the pcb board 2 is provided with capacitance connection terminal 10, capacitance connection terminal
Capacitor 1 is connected on 10, capacitor 1 is placed in outside pcb board 2 by its stitch bending rear overhang, and the pcb board 2 is provided with the one of capacitor 1
The setting of 3 inner sidewall edge of lateral edge shell, is suspended in capacitor 1 outside shell 3, position corresponding with capacitor on 3 outer wall of shell
Set and be connected with a hollow positioning shell 4, offered on 3 side wall of shell with positioning shell 4 inside be connected to for 1 stitch of capacitor
The narrow slit 5 passed through, capacitor 1 are fixed in positioning shell 4, and the stitch of capacitor 1 passes through the electricity that narrow slit 5 is connected to 2 edge of pcb board
Hold on connection terminal 10.
Several through-holes 11 are offered on the positioning shell 4, speed-up capacitor 1 radiates.
The shell 3 includes pedestal 3-1 and cover board 3-2, and the positioning shell 4 includes bottom case 4-1 and lid shell 4-2, bottom case 4-1
It is connected on pedestal 3-1, lid shell 4-2 is connected on cover board 3-2, so that pcb board 2 and capacitor 1 are more square when being installed in shell 3
Just, the structure of shell 3 and positioning shell 4 is simple, install convenient.
The course of work of the present embodiment is: as shown in Figure 1, push rod 6 pushes wiping piece 8 mobile, wiping piece 8 is moved to and gold
Finger 9 contacts, and the two golden fingers realization connected on pcb board closes the switch, and power input terminal and output are connected on pcb board
Terminal (not shown in figure 1) power input terminal and output terminal are each passed through shell 3 and stretch out outside shell, and power input electronics connects
It connects power supply (battery pack or alternating current), output terminal connection load (electric tool motor), electric current inputs PCB from power input terminal
It after plate 2, exporting from output terminal to load, rotates load, during electric current passes through pcb board 2, capacitor 1 generates heat, due to
Capacitor 1 is placed in outside shell 3, therefore, capacitor 1 issue heat be directly emitted to outside shell 3, will not be to shell 1 inside
Pcb board has an impact, and not will lead to the rising of pcb board operating temperature, therefore, effectively increases the job stability of switch, prolongs
The service life of switch is grown.
The principles and effects of the invention, and the embodiment that part uses only is illustrated in above-described embodiment,
And is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from the invention structure
Under the premise of think of, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (4)
1. being applied to the capacitance setting method of electric tool switch, which is characterized in that including by 90 ° of stitch bending of capacitor (1)
After be welded on the corresponding connection terminal in pcb board (2) edge, so that capacitor (1) is suspended in pcb board (2) outside；Pcb board (2) are arranged
Have capacitor (1) is mounted on shell (3) edge on one side, and a hollow positioning corresponding with capacitor (1) is connected on shell (3)
Shell (4) positions and only stays the narrow slit (5) that the stitch for capacitor (1) passes through between shell (4) and shell (1)；The capacitor (1) is solid
In positioning shell (4), the stitch of capacitor (1) is placed in shell (3) and positions in the narrow slit (5) between shell (4) for fixed setting.
2. speed-regulating switch of electric tool, including switch case (3), push rod (6) and pcb board (2), push rod (6) sliding plug
In push-rod hole (7) on shell (3) side wall, push rod (6) one end is inserted into shell (3), and the other end stretches out shell (3) outside,
It is provided with wiping piece (8) on the push rod (6) in shell (3), the pcb board (2) is fixed in shell (3), pcb board
(2) golden finger (9) opposite with wiping piece (8) is provided on, the push rod (6) pushes wiping piece (8) to contact with golden finger (9)
Or separation, realize the opening and closing and speed regulation of switch, which is characterized in that the one side edge of the pcb board (2) is provided with capacitance connection
Terminal (10) is connected with capacitor (1) on capacitance connection terminal (10), and capacitor (1) is placed in pcb board by its stitch bending rear overhang
(2) outside, the pcb board (2) is provided with lateral edge shell (3) the inner sidewall edge setting of capacitor (1), is suspended in capacitor (1)
Shell (3) is external, and position corresponding with capacitor is connected with a hollow positioning shell (4), the shell on shell (3) outer wall
The narrow slit (5) passed through for capacitor (1) stitch being connected to inside positioning shell (4) is offered on body (3) side wall, capacitor (1) is fixed
In positioning shell (4), the stitch of capacitor (1) passes through the capacitance connection terminal that narrow slit (5) are connected to pcb board (2) edge for setting
(10) on.
3. electric tool switch according to claim 2, which is characterized in that offered on the positioning shell (4) several logical
Hole (11).
4. electric tool switch according to claim 2, which is characterized in that the shell (3) includes pedestal (3-1) and lid
Plate (3-2), the positioning shell (4) include bottom case (4-1) and lid shell (4-2), and bottom case (4-1) is connected on pedestal (3-1), lid shell
(4-2) is connected on cover board (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366368.2A CN110033965A (en) | 2019-05-05 | 2019-05-05 | Capacitance setting method and speed-regulating switch of electric tool applied to electric tool switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366368.2A CN110033965A (en) | 2019-05-05 | 2019-05-05 | Capacitance setting method and speed-regulating switch of electric tool applied to electric tool switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110033965A true CN110033965A (en) | 2019-07-19 |
Family
ID=67241203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910366368.2A Pending CN110033965A (en) | 2019-05-05 | 2019-05-05 | Capacitance setting method and speed-regulating switch of electric tool applied to electric tool switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110033965A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227069A (en) * | 2013-04-03 | 2013-07-31 | 苏州华之杰电讯有限公司 | Switch in electric power tool |
| CN104968145A (en) * | 2015-06-19 | 2015-10-07 | 中山海科力电子有限公司 | Circuit board device |
-
2019
- 2019-05-05 CN CN201910366368.2A patent/CN110033965A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227069A (en) * | 2013-04-03 | 2013-07-31 | 苏州华之杰电讯有限公司 | Switch in electric power tool |
| CN104968145A (en) * | 2015-06-19 | 2015-10-07 | 中山海科力电子有限公司 | Circuit board device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190719 |
|
| RJ01 | Rejection of invention patent application after publication |