CN101802950B - Control device - Google Patents
Control device Download PDFInfo
- Publication number
- CN101802950B CN101802950B CN200880101977.5A CN200880101977A CN101802950B CN 101802950 B CN101802950 B CN 101802950B CN 200880101977 A CN200880101977 A CN 200880101977A CN 101802950 B CN101802950 B CN 101802950B
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- CN
- China
- Prior art keywords
- controller
- contact
- area
- cooling body
- shell
- 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.)
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Classifications
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- 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
- H01H9/52—Cooling of switch parts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
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- 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
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a control device, particularly an electric switch (1) for use for a hand-held power tool, such as a hand-held power tool using a rechargeable battery and/or mains operation, for example drills, grinders, saws, planes, angle grinders and the like, comprising an electric motor. The switch (1) comprises a housing (2) for receiving at least one heat-generating power element, such as a power transistor, a MS-FET, a triac, or the like, which is particularly arranged in an electric circuit arrangement. The circuit arrangement is used, for example, to control and/or regulate the electric motor through a corresponding control and/or regulation of the electric load current flowing through the power element to the electric motor. The heat-generating power element and/or at least parts of the circuit arrangement are thermally conductively connected to a cooling body (6) disposed on the outside of the housing (2). The cooling body (6) comprises at least two regions, wherein the first region of the cooling body (6) is arranged in the housing (2) such that the heat-generating element and/or at least parts of the circuit arrangement are directly connected to the first region, and wherein the second region (12) of the cooling body (6) protrudes out of the housing (2), particularly in the manner of a lateral emergence on both sides out of the housing (2). Furthermore, an electric switch (1) having a resilient contact bearing is created, wherein the movement of the operating element (3) is deflected approximately in the transversal direction relative to the action on the contact system. Finally, the electric switch (1) can be provided with an on-blocking device (24) having a blocking member, wherein the blocking member comprises a plastic web.
Description
Technical field
The present invention relates to a kind of controller.
Background technology
Such controller is first with acting on the hand held electric tool with motor such as the electric switch for storage battery power driven tools and/or electrical network electric tool.These electric tools can be drilling machine, milling drum, electric saw, electric planer, angle grinding machine or analog.
From DE19508925A1, disclose a kind of electric switch for electric tool, this switch has shell, and this shell is for receiving the electric line unit for controlling and/or regulate motor.Such line unit can be such as the electronic subassembly of being controlled and/or regulated the rotating speed of motor by pulse-width modulation.Other the single situation for such electronic subassembly can be such as the control of being undertaken by diode pair idle running and/or adjusting, such as regulate control and/or adjusting that torque is carried out by electric current, or the control of other characterisitic parameter and/or adjusting, as the automatic cut-out of motor, adjusting automatically, the braking of electronics, soft start or the analogue of electronics.Line unit in shell comprises again at least one member now as power semiconductor, power transistor, mos field effect transistor (MOS-FET), TRIAC (Triac) or analog, and described member is for controlling accordingly and/or regulate the electrical load electric current that flows to motor by this member.
Described member is because its function as power member produces the loss power of the form of the heat that derive from shell.Equally, other parts of described line unit also can produce loss heat.Cooling body on a lateral surface in described shell is used for deriving this heat, at least some parts of the member of described generation heat and/or described line unit and described cooling body in conduct heat be connected among.Now the fact shows, in some situation especially in the sustained load situation of electric tool and/or blocking case for cooling body up to now heat radiation be inadequate.It is apparent that, in such a case switch and thus the operational reliability of electric tool suffer damage.
In addition, a kind of electric switch having for the shell of electric tool is disclosed from DE19708939A1.In shell, have a contact system, this contact system comprises that a fixed contact and one are arranged in the make and break contact on contact bearing with this fixed contact is coefficient in the mode that can move.An operating mechanism being arranged on shell acts on described contact system for changing.Described contact system comprises multiple single-pieces.In addition, in some situation, such as in the time that the handle of both hands angle grinding machine is elongated, in handle is inadequate for receiving the structure space of switch.
A kind of electric switch having for the shell of electric tool is finally disclosed from DE3638952A1.In shell, there is a contact system.An operating mechanism that can move along steering being arranged on shell acts on described contact system for changing.Described switch has a connection blocking mechanism for operating mechanism, wherein said connection blocking mechanism so comprises the element that hoists (Auflaufglied) and the blocking element being located on operating mechanism that are located on shell, makes described operating mechanism can be substantially transverse to steering and moves for crossing connection blocking mechanism and especially crossing or rather the element that hoists.In this connection blocking mechanism, use metal bolt as blocking element, described metal bolt is more expensive single-piece.
Summary of the invention
Task of the present invention is so further to develop cooling body, thereby improve the effect that heat is discharged from shell.Especially situation that should be narrow in utilizing the cooling-air stream that exist and/or pay attention to handle case in controller and/or consider switch and motor between easy contact possibility, in sustained load situation and/or blocking case, obtain the effectively cooling of power semiconductor.
In addition task is, the so further described contact system of exploitation, thereby the number of reduction parts.In addition, so further the described switch of exploitation, makes it be suitable for using in narrow structure space.Finally also have a task to be, so further the described connection blocking mechanism of exploitation, makes described switch cost more cheap.
Described task for the controller of described type by being resolved by controller of the present invention.Controller, for being applied to the electric tool with motor, described controller has shell (2) for receiving at least one to produce the member of heat, the member (10) of wherein said generation heat and cooling body (6) on the lateral surface in described shell (2) in conduct heat be connected among, wherein, described cooling body (6) has at least two regions (11, 12), the first area (11) of wherein said cooling body (6) is so arranged in shell (2), the member (10) that makes described generation heat and described first area (11) are among being connected of direct heat transfer, and the second area (12) of described cooling body (6) is stretched from described shell (2), it is characterized in that, the second area (12 ' of described cooling body (6), 12 " part) is configured to wing, and the second area (12 ' of described wing, 12 ") stretch out from remaining second area (12) agley.
For described, by controller of the present invention, described cooling body has at least two regions.The first area of this cooling body is so arranged in shell, make the member of described generation heat and/or at least some parts of line unit with described first area among direct connection, that is to say conduct heat connection among be fixed on described first area.The second area of described cooling body is stretched from shell, especially stretches in the mode of stretching out from described shell in side in both sides.
For electric tool, described switch is arranged in electric power tool shell in common mode, and or rather preferred arrangements in the handle of electric tool.In order further to improve radiating effect, the second area of described cooling body is stretched over the region for the cooling-air stream of described electric tool always, and described cooling-air flows first for carrying out cooling to motor.Contrary with design in the past, described second area continues up in cooling-air stream thus.
Described cooling body can correspondingly match with the heat that needs to be derived.For this reason, cooling body is configured to stair structure about its thickness.First the first area of described cooling body is provided with higher material thickness in the region of power semiconductor and/or power member, for further improve radiating effect like this.
A part that stretches into the second area in cooling-air stream for described cooling body can be configured to wing.Then first the second area of wing stretches into the cooling-air stream for electric tool.In addition, the second area of the wing of described cooling body can be provided with gap, fracture, perforate or similar structures and is used to air by expanding the surface of cooling-air stream and/or cooling-air stream being lightened the burden.Such design matches and has optimized radiator structure with the structure space in special mode and electric tool.
Can by the following method cooling body be arranged in shell in simple mode, described second area in the exit of coming from shell about the bending of described first area.Occur such situation at this, i.e. bending is about 90 °.Advantageously, described second area is resisted against on the wall body of shell.If described cooling body is such as the stop by means of for described second area and/or locking connection are fixed on shell, that just can install described cooling body easily.
Described shell can comprise a pedestal and a lid in common mode.Advantageously described cooling body is fixed on pedestal.For the purpose of being easy to installation, lid can be fixed on pedestal by means of stop and/or locking connection, and wherein then the second area of described cooling body has a space for described stop and/or locking connection between lid and pedestal.
In the case of matching with the flow direction of cooling-air stream, the second area of described wing can be configured to the structure of stretching out from remaining second area agley.Preferably the angle between these regions, between 90 ° and 160 °, is especially about 120 °.In order to be present in ideally in cooling-air stream, the second area of described wing is given prominence to and is exceeded described shell.Can carry out in the following manner further optimized heat radiation structure, the second area of described wing is also provided with higher material thickness at least in part.
In order to manufacture with cheap cost, described cooling body is configured to integrative-structure to a great extent.In this suitable way be, by the cooling body of manufacturing sheet metal bending part type through band plate milling and/or rolling (Blechband).In addition, manufacture by adding plating (Aufplattierung), built-up welding, repair welding or similar approach in the region with higher material thickness on cooling body.The material with good heat-transfer capability is suitable as the material for cooling body as copper, aluminium, steel or similar material.
In a word, can be that a kind of particularly preferred design is determined, described cooling body step ground is provided with higher material thickness in the region of power semiconductor.To stretch out from switch housing in side in both sides and to make cooling body continue up to this mode in the region of controller-cooling-air stream, cooling body is arranged in switch.Optional described extendible portion is provided with the gap of passing through for air, for expanding the surface of air stream and/or air stream being lightened the burden.
For described, by switch of the present invention, described contact bearing is so configured to resilient bearing, thereby contact force is produced by contact bearing itself.Especially produced by the elastic force of contact bearing in this contact force.Do not need thus otherwise the common Compress Spring for generation of contact force, save thus single-piece and cost saving thus.
In the shell of described switch, can arrange control and/or the adjusting electronic installation for electric tool in common mode.Then advantageously, arranged circuit board in shell, this circuit board is for receiving for described control and/or regulating the member of the electric and/or electronics of electronic installation.For simple installation, described contact bearing can be welded direct on described circuit board.
In a kind of design that can be easily and manufacture with cheap cost, described contact bearing is provided with a section that is roughly U-shaped.This U-shaped section has certain elasticity, and this elasticity is again for generation of the elastic force that forms contact force.For the purpose of well installing, the section of described U-shaped is roughly parallel to circuit board and arranges.The pin (Steckfuss) that a support arm of described U-shaped section can stretch out by means of at least one with simple methods is plugged on circuit board.Then further suitable way is, described support arm on pin with welding circuit board.
In other design, the having and be approximately perpendicular to the bearing-surface that described another support arm stretches out with opposed another support arm of support arm of the section of described U-shaped, wherein said bearing-surface is connected on the end of described another support arm of described U-shaped section.Described bearing-surface can produce easily in the following manner, and described bearing-surface is made up of a section that approximately folds 180 ° of described another support arm.
What described make and break contact can be configured to have two lever arms in the mode of reliable in function can rotatingly wait armed lever.In addition, described make and break contact is heaved portion for waiting armed lever pivoting support on described bearing-surface having one between lever arm.Described operating mechanism acts on these two lever arms for making make and break contact deflection by an operating element by means of bead.
The corresponding high electric current that flowing in the high motor of power, described electric current especially under failure condition such as also can further rising in the time blocking.There will be in such a case the welding phenomena of contact, thereby again cannot disconnect electric tool, this produces bad impact to fail safe again concerning user.In order to tackle this danger, provide the following improvement project of contact system.Described make and break contact is like this and described operating mechanism acting in conjunction in this further design, thereby can cause transverse to the disconnection campaign of make and break contact and/or the moving movement of closing motion.Implement thus the one of soldered contact and force to disconnect (Zwangsabri β).
For a kind of switch that is configured to cramped construction is provided, conductor rail can lead to an electrical connector stretching out from described shell, lead to soldered fitting or analog on circuit board as electrical fitting from of the section of a described U-shaped support arm.Described conductor rail advantageously generally perpendicularly stretches out from a support arm of described U-shaped section.In order can easily to manufacture, the section of described conductor rail and/or U-shaped and/or bearing-surface and/or pin are configured to integrative-structure, and the type that preferable configuration is sheet metal bending part or rather.The material with good conductive capability is suitable as the material for contact bearing as copper, copper-beryllium or analog.
In a word, can be that a kind of particularly preferred design is determined, a resilient bearing produces contact force, saves thus Compress Spring or leaf spring.Described bearing is welded direct on circuit board.By causing and force to disconnect result transverse to the moving movement that disconnects motion and/or closing motion.
Concerning described, by switch of the present invention, described operating mechanism acts on a tappet substantially moving both vertically.This tappet is hinged on the slide mechanism of a substantial horizontal motion.And for example this acts on described contact system to switch to described slide mechanism, and the motion of described operating mechanism is roughly turned to as horizontal direction is for acting on described contact system.Such switch has elongated planform and is thus suitable for being used in narrow structure space.
In a kind of other design, arranged spring on slide mechanism, this spring can be a kind of Compress Spring of level.By means of this spring, in the time connecting described contact system, produce negative power-displacement-characteristic curve.On tappet, on operating mechanism, there is in other words thus very high starting force and very low maintenance-end-Li.Advantageously, user feels obvious pressure point when electric tool connecting, and due to very low maintenance-end-Li concerning user, can realize electric tool without tired continuous service.In compact design, in the receiving mouth of the chamber shape of described spring on slide mechanism.Described spring remains on arranging in the side to contact system of described chamber by means of fixing backstop, and the elastic force that described slide mechanism overcomes spring in the time that operating mechanism is handled thus moves.
Described contact system comprises that a fixed contact and one are arranged in the make and break contact on contact bearing with this fixed contact is coefficient in the mode that can move.What described make and break contact can be configured to have two lever arms can rotatingly wait armed lever.Described operating mechanism acts on these two lever arms for making make and break contact deflection by operating element by means of bead.Advantageously, described operating element is arranged on slide mechanism, and is arranged in or rather it dorsad in a side of tappet.
In a kind of improvement project of slim-lined construction, the ball and socket structure between tappet and slide mechanism is the Y-piece with dipper.This Y-piece is bearing on tappet in the mode that can rotate by means of axle journal, and described dipper is bearing on slide mechanism in the mode that can rotate by means of axle journal again.In the friendly design of a kind of special installation, the axle journal in especially described joint, described joint is made up of a kind of the first plastics and described tappet and/or slide mechanism are made up of a kind of the second plastics, wherein said two kinds of plastics chemical combination not each other.Joint between described tappet and slide mechanism then can be made substantially by assembling injection moulding (Montagespritzen) in a procedure.In addition, by described two kinds each other not the plastics of chemical combination inject for described joint and for the injection mold of described tappet and/or described slide mechanism simultaneously or successively.
Can be that a kind of particularly preferred design is determined in a word, a kind of steering structure that assembles injection moulding of maneuvering motion is provided.Utilize the spring of respective design in the time connecting, to produce negative power-displacement-characteristic curve.
For described, by switch of the present invention, described blocking element is made up of plastics contact pin.The metal bolt that in the past used is correspondingly substituted, and a kind of connection dead lock for especially combination and/or the more cheap solution of cost of retainer (Arretierung) are provided thus.
A kind of favourable with simplify in the design of assembling process, described plastics contact pin is substantially molded into integratedly on described operating mechanism in the time that it is manufactured in a procedure.For simplicity, described plastics contact pin can be made up of the plastics identical with operating mechanism.
As connecting supplementing of dead lock, can on described connection locking device, arrange a retainer for described blocking element.So this retainer of structure, makes described blocking element in the position of the manipulation of described operating mechanism, to insert in described retainer and to remain in retainer.Described by plastics contact pin of the present invention thereby be not only suitable for connecting locking but also being suitable for braking.
Described operating mechanism is arranged on described shell in the mode that can turn round and move on an end in an advantageous manner therein.Described operating mechanism is overlapping described connection blocking mechanism in the mode of hollow cap on another end.Then suitable way is, described plastics contact pin is molded on the inwall of described hollow operating mechanism in both sides.
Can be that a kind of particularly preferred design is determined in a word, replace the metal bolt that in the past used by plastics contact pin.
Especially be by the advantage that the present invention obtains, under blocking case, absorb more heats and by its sucking-off from power semiconductor by the structure thicker in the region of power semiconductor of cooling body.Due to larger cross section, also can in sustained load situation, derive significantly more heat and continue delivery in the region of cooling-air stream.Thus can operation technique specification lower and more cheap power semiconductor significantly.Also saved thus expense.In addition,, by the better discharge structure of loss heat, improved the operational reliability of controller and/or switch.
With the present invention obtain advantage be especially, a kind of contact system with low cost is provided.Therefore come for bipolar switch Compress Spring and/or tension spring and/or leaf spring and the installation process saved for generation of contact.Described contact system does not rely on that manipulation speed disconnects and/or is closed.Just after closure, form contact force.And direct connection the between electronic installation-circuit board saved the structure space in switch.Save thus extra Connection Element between mechanical contact system and electronic installation as contact spring.Described contact system can have mobile effect (Schiebeeffekt), makes this contact system be provided with forced switching-off function (Zwangsabri β).Easily soldered contact can more easily be disconnected and/or be unclamped by the motion transverse to closing direction thus.
Especially be by the advantage that the present invention obtains equally, on executor, produce favourable power-displacement-feature.On executor, produce very low confining force, this contributes to resist operator's fatigue.Very low confining force has reduced the possibility that user unexpectedly enters near of cut-off point in the time of fatigue.In addition, advantageously, need very high connection power.For so negative power-displacement-characteristic curve, starting force is higher than end power, and so negative power-displacement-characteristic curve makes to connect motion and conventionally implemented incessantly until final position.Parts in the middle of can being injected into actively each other by three are realized from the steering mechanism of the motion of the vertical level that moves to, this steering mechanism can with the feature that realizes desired power together with participated in Compress Spring.
Last be still especially the cost saving and shortened the set-up time owing to saving latching by the advantage that the present invention realizes.
Brief description of the drawings
Shown in the drawings of the present inventionly a kind ofly have the embodiment of different improvement projects and design and be described in detail below.Wherein:
Fig. 1 is that the perspective of an electric switch is always schemed,
Fig. 2 is the perspective view of the cooling body as single-piece of the switch of Fig. 1,
Fig. 3 is the contact system of the switch of Fig. 1,
Fig. 4 is the design turning to for the maneuvering motion of described switch, and
Fig. 5 is the connection blocking mechanism for the operating mechanism of described switch.
Embodiment
Fig. 1 shows an electric switch 1, and the hand held electric tool that this switch 1 is suitable for having motor is such as for storage battery power driven tools and/or electrical network electric tool.Described electric tool is such as being drilling machine, milling drum, electric saw, electric planer, angle grinding machine or analog.Especially described switch 1 is suitable for use in the handle of both hands angle grinding machine.Switch 1 has one for receiving the shell 2 of a contact system 7 (referring to Fig. 3), and described contact system 7 comprises a movable make and break contact 8 and a fixed contact 9.On shell 2, arranged one can be by user manually by the operating mechanism 3 of deflection campaign.Described operating mechanism 3 acts on described make and break contact 8 in the time that it is handled, and for switching described contact system 7, makes described electric tool to connect and/or to disconnect by means of operating mechanism 3.In addition, on shell 2, be useful on electrical connector 4 that switch 1 is connected with the energy and the electrical connector 5 for switch 1 is connected with motor.
Finally in shell 2, there is one for controlling and/or regulate the electric wiring device of motor.This line unit is with acting on the control electronic installation that makes motor change rotating speed.In addition, described line unit has the power member 10 (referring to Fig. 2) of the generation heat under at least one as power semiconductor, power transistor, mos field effect transistor (MOS-FET), TRIAC (Triac) or analog, thus the electrical load electric current that flows to motor by described power member 10 is controlled accordingly and/or is regulated.
For the loss heat producing in the running of electric tool is discharged from shell 2, the power member 10 of described generation heat and/or at least some parts of described line unit and cooling body 6 on the lateral surface in shell 2 at least in part in conduct heat be connected among.As can be at length from learning Fig. 2, described cooling body 6 has the regions 11,12 that at least two profiles of showing greatly U word are arranged.The first area 11 of described cooling body 6 is so arranged in shell 2, the member 10 of described generation heat and/or at least some parts of described line unit are fixed on described first area 11 in the connection of conducting heat and thus with described first area 11 among direct connection.The second area 12 of described cooling body 6 is stretched from shell 2 in the mode of stretching out from shell 2 in side in both sides as can be found out by means of Fig. 1.
The same as already mentioned, switch 1 is arranged in the handle 1 of electric tool, and this electric tool has an electric power tool shell.The second area 12 of described cooling body 6 extends to the region for the cooling-air stream of described electric tool, and described cooling-air stream is for carrying out cooling to motor.Due to this extendible portion 12 ' of described second area 12, described cooling-air flows also simultaneously for carrying out cooling to switch 1.As can be further from learning Fig. 2, described cooling body 6 be configured to stair structure about its thickness.Therefore the first area 11 of described cooling body 6 is provided with higher material thickness d1 in the region of power member 10.Material thickness d2 in second area 12,12 ' is correspondingly smaller.Just in the key area of the very large loss heat of the generation of power member 10, improved radiating effect thus.A part for the second area 12 ' of described cooling body 6 is configured to wing, and this second area 12 ' is better to stretch into the cooling-air stream for described electric tool with the mode of coupling thus.As can be found out by means of Fig. 1, the second area 12 ' of described wing is arranged on the front of cooling body 6.Can also be extraly by described region 12 " other parts be configured to wing, wherein these other fins 12 " on front above in described cooling body 6.Because this can further optimize the situation of utilizing of cooling-air for dispelling the heat stream.The second area 12 ' of described cooling body 6 is provided with gap 13, fracture, perforate or similar structures, for for air by expand air stream surface and/or air stream is lightened the burden.In other words, this relates to the cooling body 6 of step, this cooling body 6 in the region of TRIAC (Triacs) 10, thicken and fin 12 ' above on have ventilation gaps 13.
As found out by means of Fig. 2, described second area 12 is about first area 11 bending on seamed edge 32.In the outlet that this bending 32 is stretched out in cooling body 6 according to Fig. 1 from shell 2.Described bending 32 is about 90 °, and described second area 12 is then resisted against on the corresponding wall body of shell 2.As can be further from learning Fig. 1, described cooling body 6 be fixed on shell 2 by means of the stop for described second area 12 and/or locking connection 33.
The described shell 2 for switch 1 comprises a pedestal 34 and a lid 35.Described cooling body 6 is fixed on pedestal 34 by means of stop and/or locking connection 33.In addition, described lid 35 is fixed on pedestal 34 by means of stop and/or locking connection 36.The second area 12 of described cooling body 6 has one for receiving the space 54 of described stop and/or locking connection 36 between lid 35 and pedestal 34.
The same as already mentioned, described fin 12 ', 12 " stretch in cooling-air stream according to the situation in electric power tool shell in the mode of mating.In addition according to Fig. 1, the second area 12 ' of described wing, 12, " be configured to the structure of stretching out agley from remaining second area 12.Between described region 12,12 ' and/or described region 12,12 " between angle between 90 ° and 170 °.For both hands angle grinding machine switch, the angle of about 120 ° confirms desirable especially.If the second area 12 ' of described wing, 12 " the outstanding shell 2 that exceedes, this is also advantageous particularly concerning heat radiation so.Finally can also be in the following manner further optimized heat radiation structure, namely the second area 12 ' of described wing is provided with higher material thickness d3 at least in part as can be seen in Figure 2.
Described cooling body 6 is configured to integrative-structure to a great extent according to Fig. 2.Such cooling body 6 can be by making with the type of sheet metal bending part through the band plate of milling or rolling, and described band plate is made up of copper, aluminium, steel or similar material.The described region on cooling body 6 with higher material thickness d1, d3 can be made by add plating (Aufplattierung), built-up welding, repair welding or the similar approach of other material.
Contact system 7 for switch 1 can at length be found out at Fig. 3.As also will explained in detail below, operating mechanism 3 is used for switching contact system 7 with operating element 17 actings in conjunction.The make and break contact 8 that can move by a bead 18 by means of described operating element 17 is can rotating mode being bearing on contact bearing 14.Described contact bearing 14 is so configured to resilient bearing, and contact force is produced by the elastic force of described contact bearing 14 itself.Can save thus otherwise common and the coefficient Compress Spring of make and break contact 8.For producing elastic force, described contact bearing 14 has a section 15 that is approximately configured to U-shaped.
Circuit board 16 is in shell 2, and this circuit board 16 is for receiving the control used for electric tool and/or regulating the member of the electric and/or electronics of electronic installation.The section 15 of described U-shaped is roughly parallel to that circuit board 16 is arranged and described contact bearing 14 is welded direct on circuit board 16 with the section 15 of its U-shaped.In addition the pin 39 that, wherein support arm 37 of the section 15 of described U-shaped stretches out by means of at least one is plugged on circuit board 16.Described support arm 17 then welds with circuit board 16 on pin 39.
Another of the section 15 of described U-shaped has and is approximately perpendicular to the bearing-surface 40 that this another support arm 38 stretches out with the opposed support arm 38 of described support arm 37.This bearing-surface 40 be connected on the end of another support arm 38 of the section 15 of described U-shaped and by one of described another support arm 38 approximately the section of folding 180 ° formed.Make and break contact 8 be configured to one have two lever arms 41,42 can be rotating etc. armed lever.Described make and break contact 8 is heaved portion 43 for waiting armed lever pivoting support on described bearing-surface 40 having one between lever arm 41,42.Described operating mechanism 3 then acts on these two lever arms 41,42 for making make and break contact 8 deflections by operating element 17 by means of bead 18.In addition, said operating mechanism 3 by the all-moving surface 19 on operating element 17 so with make and break contact 8 actings in conjunction, thereby in the time switching contact system 7, produce moving and/or the moving movement of closing motion transverse to disconnecting for make and break contact 8.Due to this moving movement, can cause that a kind of pressure for make and break contact 8 disconnects (Zwangsabri β), for answering thus the welding of docking point 8,9.Can determine in a word, a kind of contact system 7 with resilient bearing 14 is provided, wherein said resilient bearing 14 produces for contact 8,9 is disconnected and/or closed power, and wherein forces to disconnect by described moving movement.
Finally, arranged conductor rail 44 in the mode of stretching out from wherein support arm 37 of the section 15 of described U-shaped, this conductor rail 44 as and the described electrical connector stretching out from shell 2 (referring to Fig. 1), and circuit board 16 on soldered fitting not shown further or the electrical connection between analog.Described conductor rail 44 generally perpendicularly stretches out from a wherein support arm 37 of the section 15 of described U-shaped.Advantageously, the section 15 of described conductor rail 44 and/or U-shaped and/or bearing-surface 40 and/or pin 39 are structure as a whole with the type structure of sheet metal bending part.The contact bearing 14 of the type constitution with multifunction piece like this can be made up of copper, copper-beryllium or analog.
In Fig. 4, can at length find out the design about the transformational effect to contact system 7 of described operating mechanism 3.In addition, first described operating mechanism 3 acts on one according to the tappet 20 of direction arrow 30 perpendicular motions by user in the time that it operates.This tappet 20 is hinged to according on the slide mechanism 22 of direction arrow 31 substantial horizontal motions by means of joint 21.Described operating element 17 is on slide mechanism 22, and or rather in it dorsad in a side of tappet 20, make described slide mechanism 22 act on contact system 7 to switch, method is that the motion of described operating mechanism 3 roughly turns to as horizontal direction is for acting on described contact system 7.
On slide mechanism 22, arrange the spring 23 of the type of the Compress Spring of the level that is configured to.In the time connecting contact system 7, can produce negative power-displacement-characteristic curve thus.This means, on described tappet 20, on operating mechanism 3, exist in other words very high starting force and very low maintenance-end-Li.Described spring 23 is in a receiving mouth 45 that is located at the chamber shape on slide mechanism 22 and fixing backstop 46 remains on arranging in the side to contact system 7 of described chamber 45 by means of one.The elastic force that then described slide mechanism 22 overcomes spring 23 in the time that operating mechanism 3 is handled thus moves.Joint 21 between described tappet 20 and slide mechanism 22 is configured to have the Y-piece 47 of dipper 48.This Y-piece 47 is bearing on tappet 20 by means of axle journal 49 in the mode that can rotate and dipper 48 is bearing on slide mechanism 22 in the mode that can rotate by means of axle journal 50.
Make by assembling injection moulding substantially in simple mode in a procedure in movable joint 21 between described tappet 20 and slide mechanism 22.In addition, the axle journal 49,50 in described joint 21 and or rather described joint 21 is made up of a kind of the first plastics and described tappet 20 and/or slide mechanism 22 are made up of a kind of the second plastics, wherein said two kinds of plastics chemical combination not each other.Then, for assembling injection moulding, by these two kinds, the plastics of chemical combination while or successively injection are not used for described joint 21 and the injection mold for tappet 20 and/or slide mechanism 22 each other.
The turning to and contribute to produce very high starting force and very low confining force together with the Compress Spring 23 of described level of the motion from the vertical level that moves to of maneuvering motion.In addition, provide thus a kind of elongated switch 1, this switch 1 is particularly suitable for being used in the handle of two relief angle grinding machines.
As can be from learning Fig. 1, described switch 1 be provided with a connection blocking mechanism 24 for operating mechanism 3.In detailed view in Fig. 5, can at length find out this connection blocking mechanism 24, it comprises the element that hoists (Auflaufglied) 25 and the blocking element 26 being located on operating mechanism 3 that are located on shell 2.Described connection blocking mechanism 24 so works, and operating mechanism 3 can be substantially transverse to by the steering of arrow 27 namely along moving by the direction of arrow 28, for crossing described connection blocking mechanism 24 and crossing or rather the element 25 that hoists.For this reason described operating mechanism 3 therein on an end 52 (referring to Fig. 1) with can deflection and mobile mode be arranged on shell 2.For with described connection blocking mechanism 24 actings in conjunction, as especially can clearly found out in Fig. 5 as described in operating mechanism 3 as described in overlapping, connect blocking mechanism 24 in the mode of hollow cap on another end.In addition, described blocking element 26 can insert in corresponding retainer 29 in the position of the manipulation of described operating mechanism 3, this retainer 29 is arranged on described connection blocking mechanism 24 equally, and the continuous service that described operating mechanism 3 is described electric tool thus remains in retainer 29.
Described blocking element 26 is made up of plastics contact pin, replaces thus the metal bolt that in the past used and makes assembling process become easy.Described plastics contact pin 26 is made up of the plastics identical with operating mechanism 3, and is molded on operating mechanism 3, and or rather, described plastics contact pin 26 is molded on the inwall 51 of described hollow operating mechanism 3 in both sides.For this reason, also correspondingly match for locking chute and the retainer 29 of connecting dead lock 24.
The present invention is not limited to illustrated and shown embodiment.Or rather, it also comprises all professional improvement projects in scope of invention.Therefore, the present invention not only can be used on electric tool switch, and can be used on other switch, such for household electrical appliance, electric gardening instrument, toolroom machine or analog such as being used in.Therefore, the present invention also can be used in to be had or not on the chlamydate controller of tool, described controller for the power electric device of electric tool, for automobile or such device.
reference numerals list:
1 electric switch
2 shells
3 (switch) operating mechanism
4,5 (on switch) electrical connector
6 cooling bodies
7 contact systems
8 make and break contacts/contact
9 fixed contacts/contact
10 power member/member/TRIAC
11 (cooling body) (first) region
12 (cooling body) (second) region
12 ' extendible portion/second area/fin
12 " second area/(other) fin
13 (ventilation) gap
14 contact bearings/resilient bearing
The section of 15 (contact bearing) U-shaped
16 circuit boards
17 operating elements
18 (on operating element) bead
19 all-moving surfaces
20 tappets
21 joints
22 slide mechanisms
23 (compression) spring
24 connect blocking mechanism/connection dead lock
25 elements that hoist
The contact pin of 26 blocking elements/plastics
27,28 arrows
29 retainers
30,31 direction arrows
32 seamed edges/bending
33 (for cooling body) stop and/or locking connection
34 (shell) pedestal
35 (shell) lid
36 (for lid) stop and/or locking connection
37 (section of U-shaped) support arm
38 (section of U-shaped) (another) support arm
39 pins
40 (contact bearing) bearing-surface
41,42 (make and break contact) lever arm
43 heave portion
44 conductor rails
45 (on slide mechanism) receiving mouth/chamber
46 backstops
47 (joint) Y-piece
48 (joint) dipper
49,50 axle journals
51 (operating mechanism) inwall
52 (operating mechanism) end
53 (operating mechanism) (another) end
54 (in cooling body) space
Claims (33)
1. controller, for being applied to the electric tool with motor, described controller has shell (2) for receiving at least one to produce the member (10) of heat, the member (10) of wherein said generation heat and cooling body (6) on the lateral surface in described shell (2) in conduct heat be connected among, wherein, described cooling body (6) has at least two regions (11, 12), the first area (11) of wherein said cooling body (6) is so arranged in shell (2), the member (10) that makes described generation heat and described first area (11) are among being connected of direct heat transfer, and the second area (12) of described cooling body (6) is stretched from described shell (2), it is characterized in that, a part for the second area of described cooling body (6) is configured to wing, and the wings (12 ' of described second area, 12 ") stretch out from the remainder of described second area (12) agley.
2. by controller claimed in claim 1, it is characterized in that, the member (10) of described generation heat is arranged in electric line unit, described line unit is controlled or regulates described motor for the corresponding control or the adjusting that flow to the electrical load electric current of motor by the member to by described generation heat (10) and carry out, and the member of described generation heat (10) is power transistor, mos field effect transistor or triacs.
3. by controller claimed in claim 1, it is characterized in that, described controller is for being arranged in the electric tool with electric power tool shell, and the second area (12) of described cooling body (6) extends to the region for the cooling-air stream of the motor of described electric tool.
4. by controller claimed in claim 1, it is characterized in that, the second area (12) of described cooling body (6) stretches out in side in both sides from described shell (2).
5. by controller claimed in claim 1, it is characterized in that, described cooling body (6) is configured to stair structure about its thickness, and the first area (11) of described cooling body (6) is provided with than the higher material thickness of the second area of described cooling body (6) (12) in the region of the member (10) of described generation heat.
6. by controller claimed in claim 1, it is characterized in that, the wings of described second area (12 ', 12 ") extend into the cooling-air stream for described electric tool.
7. by controller claimed in claim 1, it is characterized in that, the wings of the second area of described cooling body (6) is provided with gap (13), fracture or the perforate passed through for air for expanding the surface of air stream and/or air stream being lightened the burden.
8. by controller claimed in claim 1, it is characterized in that, described second area (12) in the exit of coming from described shell (2) about described first area (11) bending, described second area (12) is resisted against on the wall body of shell (2), and described cooling body (6) is fixed on shell (2) by means of the stop for described second area (12) and/or locking connection (33).
9. by controller claimed in claim 1, it is characterized in that, described shell (2) comprises pedestal (34) and lid (35), described cooling body (6) is fixed on pedestal (34), and described lid (35) is fixed on pedestal (34) above by means of stop and/or locking connection (36), and the second area (12) of wherein said cooling body (6) has the space (54) for described stop and/or locking connection (36) between lid (35) and pedestal (34).
10. by controller claimed in claim 1, it is characterized in that, the angle between the wings of described second area (12 ', 12 ") and the remainder of described second area (12) is between 90 ° and 170 °.
11. by controller claimed in claim 10, it is characterized in that, the angle between the wings of described second area (12 ', 12 ") and the remainder of described second area (12) is 120 °.
12. by controller claimed in claim 5, it is characterized in that, the wings of described second area is provided with the higher material thickness of remainder than described second area (12) at least in part.
13. by controller claimed in claim 1, it is characterized in that, described cooling body (6) is configured to integrative-structure.
14. by the controller described in claim 12, it is characterized in that, make by adding plating, built-up welding or repair welding in the region with higher material thickness on described cooling body (6).
15. by controller claimed in claim 1, it is characterized in that, described cooling body (6) is made up of copper, aluminium or steel.
16. by controller claimed in claim 1, it is characterized in that, the wings of described second area (12 ', 12 ") the outstanding described shell (2) that exceedes.
17. by controller claimed in claim 1, described controller have in this shell (2) comprise fixed contact (9) and with this fixed contact (9) coefficient with the mode that can move be arranged in the contact system (7) of the make and break contact (8) on contact bearing (14) and for conversion act on the operating mechanism (3) of described contact system (7), it is characterized in that, described contact bearing (14) is so configured to resilient bearing, and contact force is produced by the elastic force of described contact bearing (14).
18. by the controller described in claim 17, in described shell (2), have for receiving for the control of described electric tool and/or regulating the circuit board (16) of the member of the electric and/or electronics of electronic installation, and described contact bearing (14) is welded direct on described circuit board (16).
19. by the controller described in claim 17, it is characterized in that, described contact bearing (14) has the section for generation of elastic force (15) that is configured to U-shaped, the section of described U-shaped is parallel to described circuit board and arranges, the pin that a support arm of the section (15) of described U-shaped stretches out by means of at least one is plugged on described circuit board, and described support arm on pin with described welding circuit board.
20. by the controller described in claim 19, it is characterized in that, the section (15) of described U-shaped there is with opposed another support arm of a described support arm bearing-surface stretching out perpendicular to described another support arm, described bearing-surface is connected on the end of described another support arm of the section (15) of described U-shaped, and described bearing-surface is made up of the section of folding 180 ° of described another support arm.
21. by the controller described in claim 20, it is characterized in that, what described make and break contact was configured to have two lever arms can rotatingly wait armed lever, described make and break contact between described lever arm, have the portion of heaving for by the described armed lever pivoting support of waiting on described bearing-surface, and described operating mechanism acts on these two lever arms for making described make and break contact deflection by operating element by means of bead.
22. by the controller described in claim 17, it is characterized in that, described make and break contact (8) so with described operating mechanism (3) acting in conjunction, thereby can cause the moving movement carrying out transverse to disconnection campaign and/or the closing motion of described make and break contact, described moving movement has been realized a kind of pressure and has been disconnected.
23. by the controller described in claim 20, it is characterized in that, conductor rail is arranged into the soldered fitting on electrical connector or the circuit board stretching out from described shell from a support arm of the section of described U-shaped always as electrical fitting, described conductor rail vertically stretches out from a support arm of the section of described U-shaped, and the section of described conductor rail and/or described U-shaped and/or described bearing-surface and/or described pin are structure as a whole with the type structure of sheet metal bending part.
24. by the controller described in claim 17, it is characterized in that, described contact bearing is made up of copper or copper-beryllium.
25. by controller claimed in claim 1, described controller have contact system (7) in this shell (2) and for conversion act on the operating mechanism (3) of described contact system (7), it is characterized in that, described operating mechanism (3) acts on a tappet moving both vertically (20), described tappet (20) is hinged on the slide mechanism (22) of horizontal movement, and for example this acts on described contact system (7) to switch to described slide mechanism (22), the motion of described operating mechanism (3) is turned to for described contact system (7) is had an effect along horizontal direction.
26. by the controller described in claim 25, it is characterized in that, on slide mechanism (22), so arrange the spring (23) of the type of the Compress Spring of the level that is configured to, thereby in the time connecting described contact system (7), produce negative power-displacement-characteristic curve, in the receiving mouth of the chamber shape of described spring (23) on described slide mechanism, and described spring (23) so remains on arranging in the side to described contact system of described chamber by means of fixing backstop, the elastic force that makes described slide mechanism overcome spring in the time that described operating mechanism obtains handling moves.
27. by the controller described in claim 25, it is characterized in that, described contact system comprises fixed contact and is arranged in the make and break contact on contact bearing with this fixed contact is coefficient in the mode that can move, what described make and break contact was configured to have two lever arms can rotatingly wait armed lever, described operating mechanism acts on these two lever arms for making described make and break contact deflection by operating element by means of bead, and described operating element is arranged in a side of described tappet dorsad of slide mechanism.
28. by the controller described in claim 25, it is characterized in that, joint (21) between described tappet (20) and described slide mechanism (22) is configured to have the Y-piece of dipper, described Y-piece is bearing on described tappet in the mode that can rotate by means of axle journal, and described dipper is bearing on described slide mechanism in the mode that can rotate by means of axle journal.
29. by the controller described in claim 28, it is characterized in that, be made up of the first plastics in described joint and described tappet and/or slide mechanism are made up of the second plastics, wherein these two kinds of plastics chemical combination each other, and described joint (21) are injection-moulded in a procedure and are made by assembling, method be by these two kinds each other can not chemical combination plastics simultaneously or be successively injected into for described joint (21) and for the injection mold of described tappet and/or described slide mechanism.
30. by controller claimed in claim 1, described controller has the contact system (7) in this shell (2), that can move along steering acts on the operating mechanism (3) of described contact system (7) and the connection blocking mechanism (24) for described operating mechanism (3) for changing, wherein said connection blocking mechanism (24) so comprises the element that hoists (25) being located on shell (2) and is located at the blocking element (26) on operating mechanism (3), described operating mechanism (3) can be moved for crossing described connection blocking mechanism (24) transverse to steering, it is characterized in that, described blocking element (26) is made up of plastics contact pin.
31. by the controller described in claim 30, it is characterized in that, it is upper that described plastics contact pin (26) is molded in this operating mechanism (3) in the time manufacturing described operating mechanism (3) in a procedure, and described plastics contact pin is made up of the plastics identical with described operating mechanism.
32. by the controller described in claim 30, it is characterized in that, on the connection blocking mechanism (24) for blocking element (26), so arranged retainer (29), make described blocking element (26) can described operating mechanism obtain handle position in be inserted into described retainer in and remain in this retainer.
33. by the controller described in claim 30, it is characterized in that, described operating mechanism is arranged on described shell in the mode that can turn round and move on an end, described operating mechanism overlaps described connection blocking mechanism in the mode of hollow cap on another end, and described plastics contact pin is molded on the inwall of hollow operating mechanism in both sides.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007037239.8 | 2007-08-07 | ||
| DE102007037234.7 | 2007-08-07 | ||
| DE102007037236.3 | 2007-08-07 | ||
| DE102007037237.1 | 2007-08-07 | ||
| DE102007037237 | 2007-08-07 | ||
| DE102007037236 | 2007-08-07 | ||
| DE102007037239 | 2007-08-07 | ||
| DE102007037234 | 2007-08-07 | ||
| PCT/DE2008/001273 WO2009018813A2 (en) | 2007-08-07 | 2008-08-06 | Control device, particularly in the type of an electric switch for hand-held power tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101802950A CN101802950A (en) | 2010-08-11 |
| CN101802950B true CN101802950B (en) | 2014-10-22 |
Family
ID=40029222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880101977.5A Active CN101802950B (en) | 2007-08-07 | 2008-08-06 | Control device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2179427B1 (en) |
| CN (1) | CN101802950B (en) |
| SI (1) | SI2179427T1 (en) |
| WO (1) | WO2009018813A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011075196A1 (en) | 2011-05-04 | 2012-11-08 | Robert Bosch Gmbh | Machine tool switching device |
| CN104900426B (en) * | 2014-12-31 | 2018-08-24 | 徐新生 | A kind of armature circuit in electric tool and battery pack socket |
| DE102016117783B4 (en) * | 2016-09-21 | 2023-11-16 | Johnson Electric Germany GmbH & Co. KG | Electric switch |
| US20180093335A1 (en) * | 2016-10-04 | 2018-04-05 | Tti (Macao Commercial Offshore) Limited | Trigger lock for a miter saw |
| CN106452219B (en) * | 2016-11-08 | 2019-11-05 | 上海拜骋电器有限公司 | Brush DC switch |
| DE102017210467A1 (en) * | 2017-06-22 | 2018-12-27 | Robert Bosch Gmbh | Hand tool |
| WO2019061088A1 (en) * | 2017-09-27 | 2019-04-04 | Changzhou Globe Co., Ltd. | Plate for cooling a power tool |
| DE102018113100A1 (en) * | 2018-06-01 | 2019-12-05 | Elrad International D.O.O. | Switch for an electrical appliance |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1000221C2 (en) * | 1995-04-25 | 1996-10-28 | Capax B V | Double pole switch operated by trigger e.g. for control of hand-held hammer drill |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE456957B (en) * | 1984-04-16 | 1988-11-14 | Electro Matic Staplers Inc | PRESSURE POWER STEEL CIRCUIT IN AN ELECTRIC CRAFTSMAN |
| US6198631B1 (en) * | 1999-12-03 | 2001-03-06 | Pass & Seymour, Inc. | High temperature ground connection |
| US7400239B2 (en) * | 2004-09-03 | 2008-07-15 | Simply Automated, Incorporated | Universal control apparatus and methods |
| TWM279007U (en) * | 2005-05-20 | 2005-10-21 | Solteam Electronics Co Ltd | A push-button with a compulsory detachment mechanism |
-
2008
- 2008-08-06 WO PCT/DE2008/001273 patent/WO2009018813A2/en active Application Filing
- 2008-08-06 EP EP08801111A patent/EP2179427B1/en active Active
- 2008-08-06 SI SI200830753T patent/SI2179427T1/en unknown
- 2008-08-06 CN CN200880101977.5A patent/CN101802950B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1000221C2 (en) * | 1995-04-25 | 1996-10-28 | Capax B V | Double pole switch operated by trigger e.g. for control of hand-held hammer drill |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009018813A2 (en) | 2009-02-12 |
| EP2179427A2 (en) | 2010-04-28 |
| WO2009018813A3 (en) | 2009-04-09 |
| SI2179427T1 (en) | 2012-10-30 |
| CN101802950A (en) | 2010-08-11 |
| EP2179427B1 (en) | 2012-07-25 |
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