CN201336237Y - Direct current speed adjustment switch - Google Patents
Direct current speed adjustment switch Download PDFInfo
- Publication number
- CN201336237Y CN201336237Y CNU2008201828103U CN200820182810U CN201336237Y CN 201336237 Y CN201336237 Y CN 201336237Y CN U2008201828103 U CNU2008201828103 U CN U2008201828103U CN 200820182810 U CN200820182810 U CN 200820182810U CN 201336237 Y CN201336237 Y CN 201336237Y
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- Prior art keywords
- moving contact
- manual control
- control lever
- contact
- lead
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- Expired - Fee Related
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Abstract
The utility model relates to a direct current speed adjustment switch, in particular to a device control button. A control circuit board and a load power pipe are mounted in the insulating base of a casing; a casing insulating seal cover is covered outside the load power pipe; a heat radiating fin is mounted outside the insulating seal cover; a metal fastener passes through the heat radiating fin and the insulating close cover and is firmly connected with the heat radiating part of the load power pope; a slide plate of a potentiometer for speed adjustment on the control circuit board is mounted on a manual control rod; a switch contact adopts a flat structure; a groove for positioning the switch contact is formed on the manual control rod; a speed adjustment moving contact adopts a flat moving structure; a brake moving contact adopts a flat structure; and the groove with the brake moving contact and the speed adjustment moving contact is formed on the manual control rod. The utility model has the advantages of compact structure, small volume, low cost, simple assembly and easy use with various electric tools; due to the flat moving structure, the speed adjustment moving contact has the advantages of high power and long service life; and in addition, due to the flat structure, the brake moving contact changes the contact performance and improves the action reliability.
Description
Technical field
The utility model relates to the Equipment Control button, a kind of specifically DC speed regulation switch.
Background technology
The DC speed regulation switch is the very common a kind of electric elements of electric field, mainly by shell with place conductive mechanism, contact mechanism, insulating mechanism and emergency stop device in the shell to form, the loam cake of shell and fin independently divide and are arranged, each mechanism is assembled by individual part in the shell, contact mechanism is made up of two groups of moving contacts, and the cost height of this structure, assembly process are many and complicated.There is job insecurity in the contact form of emergency stop device for a contact or line contact in addition, moves and does the insensitive deficiency that waits.
The utility model content
At the defective that exists in the prior art, the purpose of this utility model is to provide a kind of DC speed regulation switch, and compact conformation, volume is little, cost is low and it is easy to assemble, and is easy to and the supporting use of various electric tools.
For reaching above purpose, the technical scheme that the utility model is taked is:
A kind of DC speed regulation switch, comprise the shell of forming by base 1 and insulative cap 14, it is characterized in that: base 1 lower right corner is provided with dust-proof plate 2, left end is provided with the mounting groove of reversing bar 24, the mounting groove right side of reversing bar 24 is provided with the mounting groove of M1 lead-out terminal 3 successively, the mounting groove of M2 lead-out terminal 4, the mounting groove of insulating base, rotating moving contact 25 is arranged on the reversing bar 24, the left end of rotating moving contact 25 is set with rotating spring 23, commutator segment 26 is arranged on reversing bar 24 lower ends, manual control lever 17 is arranged on the insulating base left side and the upper end is exposed to base 1, the insulating base right side is provided with speed governing fixed contact K29, straight-through fixed contact K38, positive terminal 6, negative terminal 5 and fast recovery diode 7, the insulating base left side is provided with and M1 lead-out terminal 3, the groove that M2 lead-out terminal 4 is adaptive, brake moving contact 21, speed governing moving contact 22 be arranged in the draw-in groove of manual control lever 17 and and 17 of manual control levers be respectively equipped with brake spring 19, moving contact spring 20, brake moving contact 21 is adaptive with M1 lead-out terminal 3, speed governing moving contact 22 is adaptive with M2 lead-out terminal 4, the handle 27 of being furnished with dust ring 18 is installed on the upper end of manual control lever 17, be provided with back-moving spring 10 between manual control lever 17 and insulating base, manual control lever 17 outsides are provided with the control circuit board 12 of bringing onto load power tube V313 and adjustable potentiometer, the speed governing slide plate 11 of adjustable potentiometer is located in the groove in manual control lever 17 outsides, the lateral surface of insulative cap 14 is provided with fin 15, medial surface and bearing power pipe V313 butt, metal fastenings 16 passes fin 15, insulative cap 14 is spirally connected with the heat radiation position of bearing power pipe V313.
On the basis of technique scheme, speed governing moving contact 22 is lifted up the dynamic formula structure for flat board, and brake moving contact 21 is a plate armature.
DC speed regulation switch described in the utility model, compact conformation, volume is little, cost is low and it is easy to assemble, and is easy to and the supporting use of various electric tools, and its speed governing moving contact is that flat board is lifted up the dynamic formula structure, and it is big to have power, the advantage of long service life; The moving contact that brakes in addition is a plate armature, has changed contact performance, improves the reliability of action.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1, the utility model embodiment disassembled form structural representation
Fig. 2, the utility model example structure schematic diagram
The A of Fig. 3, Fig. 2 is to structural representation
The C-C cross section view of Fig. 4, Fig. 2
The B of Fig. 5, Fig. 2 is to structural representation
Fig. 6, Fig. 1, control circuit board shown in Figure 4 12 structural representations
The rearview of Fig. 7, Fig. 6
Fig. 8, the utility model embodiment manual control lever and switch contact interaction structural representation
Fig. 9, manual control lever press to the first stroke state structural representation (switch energising and beginning speed governing)
Figure 10, manual control lever press to the second stroke state structural representation (switch rotates at full speed)
Figure 11, switch brake safety position schematic diagram
Stop view in Figure 12, the commutation parts
Figure 13, the structural representation when Figure 12 reversing bar 24 is pulled to the right
Figure 14, the structural representation when Figure 12 reversing bar 24 is pulled to the left
Figure 15, the utility model embodiment are located at the wiring structure of contact terminal schematic diagram on the same body
Figure 16, the utility model embodiment control circuit figure
Reference numeral:
1 is base, and 2 is dust-proof plate, and 3 is the M1 lead-out terminal, 4 is the M2 lead-out terminal, and 5 is negative terminal, and 6 is positive terminal, 7 is fast recovery diode, and 8 are straight-through fixed contact K3, and 9 are speed governing fixed contact K2,10 is back-moving spring, and 11 are the speed governing slide plate, and 12 is control circuit board, 13 is bearing power pipe V3, and 14 is insulative cap, and 15 is fin, 16 is metal fastenings, and 17 is manual control lever, and 18 is dust ring, 19 is brake spring, and 20 is moving contact spring, and 21 are the brake moving contact, 22 are the speed governing moving contact, 23 are the rotating spring, and 24 is reversing bar, and 25 are the rotating moving contact, 26 is commutator segment, and 27 is handle.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the utility model embodiment disassembled form structural representation, Fig. 2 is the utility model example structure schematic diagram (being the schematic diagram after Fig. 1 assembles), Fig. 3 is that the A of Fig. 2 is to structural representation, Fig. 4 is the C-C cross section view of Fig. 2, Fig. 5 is that the B of Fig. 2 is to structural representation, comprise the shell of forming by base 1 and insulative cap 14, base 1 lower right corner is provided with dust-proof plate 2, left end is provided with the mounting groove of reversing bar 24, the mounting groove right side of reversing bar 24 is provided with the mounting groove of M1 lead-out terminal 3 successively, the mounting groove of M2 lead-out terminal 4, the mounting groove of insulating base, rotating moving contact 25 is arranged on the reversing bar 24, the left end of rotating moving contact 25 is set with rotating spring 23, commutator segment 26 is arranged on reversing bar 24 lower ends, manual control lever 17 is arranged on the insulating base left side and the upper end is exposed to base 1, the insulating base right side is provided with speed governing fixed contact K29, straight-through fixed contact K38, positive terminal 6, negative terminal 5 and fast recovery diode 7, the insulating base left side is provided with and M1 lead-out terminal 3, the groove that M2 lead-out terminal 4 is adaptive, brake moving contact 21, speed governing moving contact 22 be arranged in the draw-in groove of manual control lever 17 and and 17 of manual control levers be respectively equipped with brake spring 19, moving contact spring 20, brake moving contact 21 is adaptive with M1 lead-out terminal 3, speed governing moving contact 22 is adaptive with M2 lead-out terminal 4, the handle 27 of being furnished with dust ring 18 is installed on the upper end of manual control lever 17, be provided with back-moving spring 10 between manual control lever 17 and insulating base, manual control lever 17 outsides are provided with the control circuit board 12 of bringing onto load power tube V313 and adjustable potentiometer, the speed governing slide plate 11 of adjustable potentiometer is located in the groove in manual control lever 17 outsides, the lateral surface of insulative cap 14 is provided with fin 15, medial surface and bearing power pipe V313 butt, metal fastenings 16 passes fin 15, insulative cap 14 is spirally connected with the heat radiation position of bearing power pipe V313.
On the basis of technique scheme, speed governing moving contact 22 is lifted up the dynamic formula structure for flat board, and brake moving contact 21 is a plate armature.
As mentioned above, technical solution of the present utility model is as follows: the utility model comprises housing (1 base, 14 insulative cap), manual control lever 17, control circuit board 12, the switch contact that is connected with control circuit board (8 straight-through fixed contact K3,9 speed governing fixed contact K2,22 speed governing moving contacts), power supply terminal (5 negative terminals, 6 positive terminals), lead-out terminal (3 M1 lead-out terminals, 4 M2 lead-out terminals), rotating changement (24 reversing bars, 25 rotating moving contacts), bearing power pipe V3 13, it is characterized in that: each parts of this switch all are arranged on the same housing, described control circuit board and bearing power pipe V3 are contained in the base of housing, bearing power pipe V3 is covered with insulative cap, insulative cap is equipped with fin outward, metal fastenings passes fin, insulative cap is dispelled the heat with bearing power pipe V3, and the position is firm to be connected, the speed governing slide plate that is used for the potentiometer of speed governing on the control circuit board is contained in manual control lever, shown speed governing moving contact 22 is lifted up the dynamic formula structure for flat board, manual control lever is provided with the detent of speed governing moving contact, shown brake moving contact 21 is a plate armature, and manual control lever is provided with the detent of brake moving contact.
As mentioned above and as shown in figure 15, housing of the present utility model is made up of base and plastic closure, be provided with insulating base in the base, power supply terminal is arranged on the insulating base side and the bottom surface of housing, two power supply terminals are the welded type binding post, the sub-M1 of the output switching terminal that is connected with load motor, M2 also are arranged on the housing of insulating base, needn't establish external lead wire, compact conformation in addition.
See Fig. 1, control circuit board is arranged in the base, the bearing power pipe is welded on the control circuit board, fin is contained in outside the plastic closure, the metal screw fastener passes fin, plastic closure, bearing power pipe heat radiation position (the D utmost point) is screwed into base and realizes that binding thread connects, to reach the effect of abundant heat radiation.
Fig. 1, control circuit board 12 structural representations shown in Figure 4 such as Fig. 6, shown in 7, the circuit theory diagrams of control circuit board 12 are referring to Figure 16, supply voltage is through providing stable operating voltage for speed governing chip GS069 after by voltage stabilizing didoe V1 voltage regulation filtering after the R9 current limliting, speed governing chip GS069 the 2nd pin is by signal controlling V3, supply voltage is through R8, R7, R6, R5, R4, R3, R2, R1 is to capacitor C 1 charging, after being full of, speed governing chip the 6th pin is connected with ground automatically, voltage on the capacitor C 1 is through R10 and R8, R7, R6, R5, R4, R3, R2, the R1 discharge, discharge finishes the back and repeats charge and discharge process, regulate speed governing slide plate 11 positions and can change and discharge and recharge time scale, thereby reach the change duty ratio, the purpose that control rate changes.Power supply terminal B-meets output switching terminal G2 by speed governing contact K1, K2 and control circuit bearing power pipe V3 on the one hand, meet output switching terminal G2 by straight-through contact K3, K4 on the other hand, power supply terminal B+ directly meets another output switching terminal G1, and two output switching terminal G1, G2 meet lead-out terminal M1, the M2 of switch respectively by commutator segment.The handle 27 of band stopper slot is equipped with in manual control lever 17 upper ends, back-moving spring 10 is equipped with in the bottom, the slide of above-mentioned adjustable potentiometer is contained on the manual control lever 17, a groove is respectively arranged about on the manual control lever, brake moving contact and speed governing moving contact are housed respectively, the brake moving contact disconnects B+ terminal and straight-through fixed contact in the time of movingly, and the speed governing moving contact acts on negative terminal, speed governing static touching terminal and straight-through fixed contact respectively, realizes being electrically connected.
The course of work of above-mentioned contact is: when manual control lever 17 is not depressed, speed governing moving contact above it and speed governing fixed contact and straight-through fixed contact all are in off-state, the moving contact that brakes this moment is in closure state, prevents that misconnection logical (referring to Fig. 8, Figure 11) from appearring in switch; When pressing down manual control lever first stroke, the brake moving contact disconnects, referring to Fig. 9, act on moving contact when moving downward, moving contact under the effect of spring 20 with speed governing fixed contact closure, connect control circuit, and make the output switching terminal energized, and continuing to depress manual control lever 17 downwards, the slide plate face 11 on it slides on adjustable potentiometer, progressively strengthen output voltage by the output duty cycle that increases, load motor speed is progressively increased; When manual control lever 17 by to second stroke time, moving contact disconnect the speed governing fixed contact and with straight-through fixed contact closure, make the direct energized B+ of output switching terminal, B-, reach full-speed operation (referring to Figure 10,16), the handle stroke is the moving control of armrest.
This routine rotating changement is: housing insulating base 1 sidewall be equipped with can about the reversing bar 24 stirred, reversing bar 24 lower ends act on the metal Location resilient piece---commutator segment 26, but make reversing bar elasticity be positioned meta, position, a left side and right position, be equipped with on the reversing bar two commutator segments respectively with the sub-G1 of output switching terminal, the rotating moving contact 25 that G2 is electrically connected, two commutator segment 25a, 25b respectively with the output switching terminal M1 that is contained on the housing, the M2 electrical connection that commutates, referring to Figure 12, reversing bar is when meta, two commutator segments and output switching terminal M1, M2 disconnects, no-output voltage; Reversing bar is pulled when the right (referring to Figure 13), and two commutator segment 25a, 25b connect with output switching terminal M1, M2 respectively; Reversing bar is pulled when the left side (referring to Figure 14), and two commutator segment 25a, 25b change direction and connect with output switching terminal M2, M1 respectively; Described handle 27 is provided with the spacing muscle of restriction reversing bar displacement, mustn't change the electric current cathode and anode directions when moving with proof load.
The brake moving contact is housed on the manual control lever 17, when handle does not have external force to apply, switch is in normal danger, and the moving contact that promptly brakes makes output motor or load end short circuit with positive terminal and 8 connections (as the K5 among Figure 16) of straight-through fixed contact, is in brake safety position (referring to Figure 11).
Switch block of the present utility model all is arranged in the same housing, compact conformation, volume is little, cost is low and assemble easy, can be assigned in neatly on electronic switch and the electric tool and use, also can be used for using on the other products of controller, household electrical appliance and similar applications, the location is simple during use, operation is reliable, can realize high-power control, and has substituting strong, a advantage that matching is strong, as long as supporting corresponding handle, reversing bar, input and output pin just can use on the electric tool of different product, different structure.
Claims (2)
1. DC speed regulation switch, comprise the shell of forming by base (1) and insulative cap (14), it is characterized in that: base (1) lower right corner is provided with dust-proof plate (2), left end is provided with the mounting groove of reversing bar (24), the mounting groove right side of reversing bar (24) is provided with the mounting groove of M1 lead-out terminal (3), the mounting groove of M2 lead-out terminal (4), the mounting groove of insulating base successively
Rotating moving contact (25) is arranged on the reversing bar (24), and the left end of rotating moving contact (25) is set with rotating spring (23),
Commutator segment (26) is arranged on reversing bar (24) lower end,
Manual control lever (17) is arranged on the insulating base left side and the upper end is exposed to base (1), the insulating base right side is provided with speed governing fixed contact K2 (9), straight-through fixed contact K3 (8), positive terminal (6), negative terminal (5) and fast recovery diode (7), the insulating base left side is provided with and M1 lead-out terminal (3), the adaptive groove of M2 lead-out terminal (4)
Brake moving contact (21), speed governing moving contact (22) be arranged in the draw-in groove of manual control lever (17) and and manual control lever (17) between be respectively equipped with brake spring (19), moving contact spring (20), brake moving contact (21) is adaptive with M1 lead-out terminal (3), speed governing moving contact (22) is adaptive with M2 lead-out terminal (4)
The handle (27) of being furnished with dust ring (18) is installed on the upper end of manual control lever (17), is provided with back-moving spring (10) between manual control lever (17) and insulating base,
Manual control lever (17) outside is provided with the control circuit board (12) of bringing onto load power tube V3 (13) and adjustable potentiometer, and the speed governing slide plate (11) of adjustable potentiometer is located in the groove in manual control lever (17) outside,
The lateral surface of insulative cap (14) is provided with fin (15), and medial surface and bearing power pipe V3 (13) butt, metal fastenings (16) pass fin (15), insulative cap (14) is spirally connected with the heat radiation position of bearing power pipe V3 (13).
2. DC speed regulation switch as claimed in claim 1 is characterized in that: speed governing moving contact (22) is lifted up the dynamic formula structure for flat board, and brake moving contact (21) is a plate armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201828103U CN201336237Y (en) | 2008-12-24 | 2008-12-24 | Direct current speed adjustment switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201828103U CN201336237Y (en) | 2008-12-24 | 2008-12-24 | Direct current speed adjustment switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336237Y true CN201336237Y (en) | 2009-10-28 |
Family
ID=41287897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201828103U Expired - Fee Related CN201336237Y (en) | 2008-12-24 | 2008-12-24 | Direct current speed adjustment switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336237Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403155A (en) * | 2010-09-08 | 2012-04-04 | 乐清市杰拉华电器有限公司 | Electric tool switch |
| CN103165306A (en) * | 2013-03-07 | 2013-06-19 | 张家港华捷电子有限公司 | Electric tool switch with metal oxide semiconductor (MOS) transistor |
| CN105336533A (en) * | 2015-11-13 | 2016-02-17 | 乐清市风速开关厂 | Dustproof alternating-current speed regulation switch |
| CN106452219A (en) * | 2016-11-08 | 2017-02-22 | 上海拜骋电器有限公司 | Direct-current brushless switch |
| CN115985704A (en) * | 2023-03-16 | 2023-04-18 | 常州云杰电器有限公司 | Small-size direct current speed governing switch |
-
2008
- 2008-12-24 CN CNU2008201828103U patent/CN201336237Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403155A (en) * | 2010-09-08 | 2012-04-04 | 乐清市杰拉华电器有限公司 | Electric tool switch |
| CN102403155B (en) * | 2010-09-08 | 2014-09-24 | 乐清市杰拉华电器有限公司 | Electric tool switch |
| CN103165306A (en) * | 2013-03-07 | 2013-06-19 | 张家港华捷电子有限公司 | Electric tool switch with metal oxide semiconductor (MOS) transistor |
| CN105336533A (en) * | 2015-11-13 | 2016-02-17 | 乐清市风速开关厂 | Dustproof alternating-current speed regulation switch |
| CN106452219A (en) * | 2016-11-08 | 2017-02-22 | 上海拜骋电器有限公司 | Direct-current brushless switch |
| CN106452219B (en) * | 2016-11-08 | 2019-11-05 | 上海拜骋电器有限公司 | Brush DC switch |
| CN115985704A (en) * | 2023-03-16 | 2023-04-18 | 常州云杰电器有限公司 | Small-size direct current speed governing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20161224 |