CN201275751Y - Universal control module - Google Patents
Universal control module Download PDFInfo
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- CN201275751Y CN201275751Y CNU2006201478219U CN200620147821U CN201275751Y CN 201275751 Y CN201275751 Y CN 201275751Y CN U2006201478219 U CNU2006201478219 U CN U2006201478219U CN 200620147821 U CN200620147821 U CN 200620147821U CN 201275751 Y CN201275751 Y CN 201275751Y
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- control module
- assembly
- accessory plate
- tool
- potentiometer
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Abstract
The utility model discloses a universal control module, which is designed for being used for controlling the operation of a plurality of motors and/or is composed for being used for a plurality of different motor applications. In the embodiment, the control module can be composed at the inner part of a shell of a power tool. The control module comprises a top cover, a bottom cover and a printed circuit board (PCB) on which a control component is arranged. The control module further comprises a gasket which is arranged between the top cover and the bottom cover and is connected onto the PCB; the gasket is used for providing tolerance limit for the control component in the period of welding process, so as to lead the control component to be fixedly connected onto the PCB.
Description
Technical field
One exemplary embodiment of the present utility model relates in general to and is used to control motor operated universal control module.
Background technology
Usually, motor is controlled by specialized simulation or digital circuit for given application controls motor.For example, need special circuit to control to be used in the given motor of power saw in using, need other special circuit to be controlled at the different motors that boring is used in using simultaneously.Special-purpose analog or digital control circuit generally is made of different parts.These parts have different value, tolerance limit and/or control software to produce unique operating characteristic curve usually for given motor and/or given motor applications.
The utility model content
The purpose of this utility model is a kind of universal control module, this control module is designed to control the operation of a plurality of motors and/or is configured for multiple different motor applications, identical like this module can be used to different electric tools, and can as if not design and make corresponding module for each electric tool like that in the prior art.In example, can constitute control module in the power tool enclosure.This control module comprises top cover, bottom and has the printed circuit board (PCB) (PCB) of control assembly thereon.Control module comprises the liner that is formed between top cover and the bottom, is used to control assembly that tolerance limit is provided.
Another one exemplary embodiment of the present utility model relates to a kind of power tool.This power tool comprises tool outer casing, tool motor, the tool work accessory of power is provided and is used for the motor operated control module of control tool by tool motor.This control module comprise top cover, bottom, thereon have the printed circuit board (PCB) (PCB) of control assembly and be formed in top cover and bottom between be used to control assembly that the liner of tolerance limit is provided.
Another one exemplary embodiment of the present utility model relates to a kind of control module assembly in the power tool shell, is used for the operation of control tool motor.This assembly comprises control module, its have top cover, bottom, have the PCB of control assembly on it and be formed in top cover and bottom between be used to provide the liner of control assembly tolerance limit.This assembly comprises that the control module with tool outer casing inside is the accessory plate of neighbouring relations.
Another one exemplary embodiment of the present utility model relates to a kind of auxiliary circuit board component, and it is used to be formed in the operation of the control module of power tool enclosure with the control tool motor.This assembly comprises near the accessory plate of the control module of tool outer casing inside and is connected to the coupling coil assembly of accessory plate that it is used to detect the motor speed of power tool.This assembly comprises the speed change dial that is connected on the accessory plate, is used to adjust the speed of tool motor.
Another one exemplary embodiment of the present utility model relates to a kind of coupling coil assembly that is arranged on the circuit board that is connected to control module.This control module can be formed in the power tool enclosure, is used for the operation of control tool motor.The coupling coil assembly comprises the coupling coil that is used for the testing tool motor speed, supports the screen board of coupling coil and at the encapsulating material of the screen board inside of sealing coupling coil.This coupling coil comprises and passes the many leads that encapsulating material and screen board extend and be used to be connected to accessory plate.
Another one exemplary embodiment of the present utility model relates to a kind of speed change dial, is used to adjust the motor speed of power tool.The speed change dial is arranged on the circuit board that is connected to control module.This control module is arranged at the enclosure of power tool, is used for the operation of control tool motor.Dial comprises rotatable knob, is operably connected to the potentiometer of this knob and is used to support potentiometric potentiometer cover.
Another one exemplary embodiment of the present utility model relates to a kind of control module that is formed in the power tool enclosure.This control module comprises top cover, bottom and has the printed circuit board (PCB) (PCB) of control assembly on it.Encapsulating material is arranged on top cover and bottom inside, so that sealing PCB and the control assembly on it.This control module comprises the liner that is formed between top cover and the bottom, is used to control assembly that tolerance limit is provided.
The advantage of universal control module provided by the invention is, a module can be controlled the operation of a plurality of motors and/or be configured for multiple different motor applications, identical like this module can be used to different electric tools, and can as if not design and make corresponding module for each electric tool like that in the prior art.
Description of drawings
According to following the detailed description and the accompanying drawings given herein, to more comprehensively understand one exemplary embodiment of the present utility model, wherein components identical is represented with identical Reference numeral, and only the mode with explanation provides and do not limit thus one exemplary embodiment of the present utility model.
Fig. 1 is the power tool partial plan layout that illustrates according to the control module of the tool housing inside of the utility model one exemplary embodiment;
Fig. 2 is the shaft side figure according to the selected parts of the tool motor of the power tool inside of the utility model one exemplary embodiment, so that the relation of control module, coupling coil, accessory plate and speed dial to be shown;
Fig. 3 is the shaft side figure according to the control module of the utility model one exemplary embodiment;
Fig. 4 A is the exploded view that illustrates according to the component parts on the printed circuit board (PCB) (PCB) of the control module of the utility model one exemplary embodiment;
Fig. 4 B is the exploded view according to the component parts on the PCB downside of the utility model one exemplary embodiment;
Fig. 5 is the perspective view of control module, is used to be illustrated in the power connection of power tool and the insulation between the power tool mating terminals connector;
Fig. 6 A to 6F is the view that concerns between screen board, coupling coil and the accessory plate that illustrates according to the utility model one exemplary embodiment;
Fig. 7 is the exploded view that the setting of coupling coil, screen board, speed dial and internal thread connector according to the control module on the accessory plate of the utility model one exemplary embodiment is shown;
Fig. 8 is the decomposition axis side view that illustrates according to the component parts of the speed change dial of the utility model one exemplary embodiment;
Fig. 9 A illustrates the encapsulation nozzle injects the control module of encapsulation filler relation to control module inside top view;
Fig. 9 B is the sectional view along the line A-A of Fig. 9 A, so that the encapsulation filler direction according to the utility model one exemplary embodiment to be shown.
The specific embodiment
With reference now to accompanying drawing, one exemplary embodiment of the present utility model is described.Go out as shown in the figure, can be with respect to the size of other structures or exaggerative structure of part and/or structure division, this only is used for illustration purpose, and provides it only to be used to illustrate general structure according to the utility model one exemplary embodiment thus.
And, will the various aspects of one exemplary embodiment be described with reference to the structure or the part that are formed on other structures, part or structure and the part.For example, mention be formed at another structure or part " on " or the structure of " top " can think other structure, part or structure and partly can inserting therebetween.This will mention be formed at another structure or part " on " and do not have being described as of the structure of insert structure or part or part " directly " be formed on structure or partly " on ".
In addition, relative terms as " on " or " top " be used to describe a structure or part relation to another structure or part, as shown in FIG..And, relative terms as " on " or " top " mean comprise control module except as shown in the figure orientation different orientation.For example, if parts among the figure or assembly counter-rotating then are described as will being oriented in other structure or part " below " at the structure or the parts of other structure or part " top ".Equally, if parts among the figure or assembly rotate along axle, then be described as to be orientated " being adjacent to ", " other structure or part ", " in its left side " or " on its right side " in the structure or the part of other structure or part " top ".
Fig. 1 illustrates according to the partial plan layout of the utility model one exemplary embodiment at the power tool of the control module of tool outer casing inside.With reference to figure 1, show and be embodied as power tool 10 rotation, that rope is arranged, should be appreciated that one exemplary embodiment relates to the power tool except power tool rotation, that rope is arranged.In the example of Fig. 1, conduct is shown via the power tool 10 of power rope 21 by the electric angle grinder of AC line power supply excitation.Electric angle grinder 10 comprises the annular knurl clamp nut (a knurled clamp nut) 12 of auxiliary protector 14 inside, is used to receive the tool work auxiliary element by the tool motor excitation.In this example, the tool work auxiliary element can be the rotation auxiliary element, as the flywheel (not shown).Flywheel can be connected to the gear-box 16 that is fixed on the tool outer casing 18 by axle.
The tool outer casing 18 that has removed the portion of external housing is shown, so that illustrate near the magnetosphere 22 of motor armature and the universal control module 100 of commutator ring 24 (' control module ').Control module 100 is designed to control the operation of a plurality of motors and/or is configured for multiple different motor applications (for example, different power tool).
Except Fig. 1, also show the accessory plate 200 that supports coupling coil assembly 250 and speed change dial 270.As a part of assembly that is connected internally to control module 100 at power tool 10, accessory plate 200 can be included in tool outer casing 18 inside.A function of accessory plate 200 is that the parts that before had been directly connected to control module 100 or be built in the control module 100 are disposed thereon, also utilizes this free space better so that make the designer can launch each parts in tool outer casing 18.Coupling coil assembly 250 can be connected to accessory plate 200, and it can be constituted the detection motor speed.This speed change dial 270 can be operated by the user, thereby is provided with and/or changes required motor speed.
Fig. 2 is at the axonometric drawing according to the selected parts of tool motor of the power tool inside of the utility model one exemplary embodiment, thus the relation between the control module of illustrating, coupling coil assembly, accessory plate and the speed dial.Fig. 2 shows the relation between accessory plate 200 and its parts (coupling coil assembly 250 and speed dial 270), control module 100 and the tool motor 20.In example, accessory plate 200, coupling coil assembly 250 and dial 270 can jointly be called " auxiliary circuit board component ".The auxiliary circuit board component is connected to the control module 100 of Fig. 1, and for example, control module is applicable to the control operation of tool motor.
Fig. 3 is the shaft side figure according to the control module 100 of the utility model one exemplary embodiment.With reference to figure 3, control module 100 comprises top cover 110, bottom 120, liner 130 and printed circuit board (PCB) 140 (not shown among Fig. 3).In an example, top cover 100 can be provided the material of heat radiation to make by the active power parts for control module 100 inside, and the top cover 100 of for example can casting is used for this function.Bottom 120 can constitute support and control module 100 internal parts and allow encapsulation, so that set up sealed package.In addition, bottom 120 provides the electric insulation zone, is used for the active power device in control module 100 inside.
Control module also comprises a pair of fast connection power connection 150 and the I/O connector 160 that is connected on the printed circuit board (PCB) 140.Should fast connect power connection 150 and be sequentially connected to control module 100 and have different size and different length, for example be connected preventing with the inappropriate of other parts.In example, I/O connector 160 can constitute 12 pin settings, wherein four (4) pin ones 62 are empty and do not use (so that the space to be provided), five (5) individual pin ones 62 are I/O pins, one (1) individual pin one 62 is that hot line pin and one (1) individual pin one 62 are circuit ground/neutral pins (neutralpin).This only is a kind of terminal pin setting that is used for I/O connector 160; Can predict other setting according to one exemplary embodiment those skilled in the art at this.
Fig. 4 A is the exploded view that illustrates according to the component parts on the printed circuit board (PCB) (PCB) of the control module of the utility model one exemplary embodiment.With reference to figure 4A, PCB 140 can be included in a plurality of parts on PCB 140 both sides, as power resistor 142, active power device 145, current divider 147, electrochemical capacitor 152 and other electronic unit 155, as diode.In example, the active power device can be embodied as triac 145.Just as is known, triac is the three-terminal semiconductor that is used to control the either direction electric current.
Fig. 4 A shows the relation of other active parts on fast connection power connection 150, I/O connector 160 and these parts and the PCB 140.Power connection 150 comprises leg 151, is used for snap-fit engagement to PCB 140 corresponding mating holes 144.Terminal pin one 62 can be connected to PCB 140 by mating holes 143, as shown in Fig. 4 A.
Fig. 4 B is the exploded view that illustrates according to the component parts on the PCB downside of the utility model one exemplary embodiment.Fig. 4 B illustrates a plurality of electronic units on comprising its of microcontroller 146, and terminal pin one 62 inserts and passes mating holes 143.Microcontroller 146 for example can comprise the programming ROM such as flash memory (variable ROM) on the single chip structure, such as the CPU core of microprocessor, carry peripheral circuit and nonvolatile memory such as the plate of static RAM (SRAM).
Even nonvolatile memory also can keep canned data when no power.The example of nonvolatile memory comprises RAM (dynamic ram (DRAM), SRAM, synchronous dram (SDRAM), video-ram (VRAM) etc.) and based on the memory of magnet and light.The type of variable solid phase ROM comprises Erasable Programmable Read Only Memory EPROM (EPROM) and Electrically Erasable Read Only Memory (EEPROM).EPROM can rewrite via EPROM programmer then and wipes by being exposed to ultraviolet light, and can discern by the circle " window " that allows UV light to enter in the top.EEPROM such as flash memory allow whole ROM (or selected portion of ROM) to be wiped (flashing back zero) by electricity, do not need then described memory bank to be taken out calculation element and write.
In example, microcontroller 146 can be ATMEL
A kind of in the 8 bit RISC microcontrollers, as have the AT mega8 quickflashing microcontroller of 8-Kbyte from the quickflashing programmable memory of programming.Yet, the intelligent electronic controller spare of module 100 is not limited to exemplary microcontroller 146, and can be embodied as hardware and/or software, as another kind of microprocessor or analog circuit, digital signal processor or by one or more digital IC, as special IC (ASIC).
In example, triac 145 is triacs of single isolation, wherein is isolated in this partial interior.Other isolation of triac 145 provides by the encapsulating material 100 in liner 130 inside.Except active parts being remained on the appropriate location in the control module 100, encapsulating material has the V0 flammability rating.The encapsulating material that is fit to includes but not limited to one or more in epoxy resin-matrix encapsulation agent, one pack system or multicomponent urethane or urethane gel encapsulation agent, one pack system or multicomponent silicon or the silicon gel encapsulation agent etc.
Therefore, encapsulation for example can pick out the control module 100 and non-isolated controlling module with individual layer isolation as insulator.In addition, hot consistent lubricant can be coated on the top surface of triac 145; This is standard in industry.In possibility, can replace hot consistent lubricant that heat pad (not shown) is provided.For example, hot consistent lubricant or heat pad can be used to prevent that encapsulation from penetrating in the control module 100, and can limit its size as the function of triac 145 height.
Therefore top cover and bottom 110,120 are secured together as screw and nut assembly by single fixture 115.In example, nut 149 is located at the groove or depression 132 inside of control module 100 inside, so that single screw extends through 148 in opening 117 in the top cover 110 and the triac 145, thus geared screw 149.This can provide mechanical device, is used for the heat from triac 145 is sent to top cover 110.Therefore, any heat that produces in PCB 140 all can be sent to radiator (that is, top cover 110) by the encapsulation (not shown).In an example, nut 149 can be the N3 nut, and this nut is placed in the hexagon depression or groove 132 that is formed in the liner 130, as shown in Fig. 4 A.
In example, bottom 120 can be made by thermoplasticity or other similar material that meets certain UL safety requirements.The schematic plastic material that is suitable for bottom 120 has the V0 flammability rating and/or satisfies UL 741 standards.Therefore, the plastic material that satisfies flammability rating and/or satisfy any type of UL 741 standards can be used for bottom 120.For example bottom can comprise nylon 6-6 polyimides.The purpose of bottom is support and control module 100 intrawares, and allows encapsulation to set up sealed package.In addition, bottom 120 is provided for the electric insulation zone of triode ac switch 145.
As discussed above, liner 130 remains on the appropriate location with the through hole electronic unit during assembling control module 100.During manufacture, on PCB 140, there are a plurality of parts, as triac 145, current divider 147, resistance 142 etc.A function of liner 130 is at the fluctuation weld period parts to be remained on the appropriate location, to remove compressing fixture from.Therefore, liner 130 so that tolerance limit to be provided, and also provides electric insulation in these tolerance limits between holding member above assembly process can be positioned on power connection 150.
As discussed above, liner 130 can provide the improved positional tolerance control of crucial active power parts, and these key active power parts comprise power resistor 142, current divider 147, triac 145, connect power connection 150 and I/O connector 160 soon.The design of liner 130 can comprise plastic part 138, is used to aim at fast connection power connection 150 and depression/groove 132, with hold-down nut 149.This can set up the simple sealed assembling between triac 145 and radiator (top cover 110).
In an example, the design of liner 130 can reduce labour and material cost, and can help to guarantee that final PCB 140 assemblies are compatible mutually with function test system.Liner 130 also provides the isolation of the active part of being assembled of the electronic building brick that electricity isolates and be used to constitute control module 100, is convenient to reduce the electronic building brick size by the component locations on the control PCB 140.
Fig. 5 is the control module perspective view that the trace insulation between the mating terminals connector of power connection and power tool is shown.In an example, antitracking rubber closed cell cystosepiment 170 can be used for forming the electric insulation part, this electric insulation partly be used in instrument 10 feed cable/electric wire 21 mating terminals connector 172 and 174 and terminal fittings such as fast disconnection connect during feed cable/electric wire between the inside/outside interface of power connection 150 and/or I/O connector 160 connects.When matching connector 172,174 abuts against rubber closed cell cystosepiment 170 promote-side subassembly shells 172,174 on control module 100 main bodys, the seam of antitracking rubber closed cell cystosepiment 170 salable terminal fittings shells that provide and control module 100 main bodys.
Rubber closed cell sheet 170 can realize control module 100 main bodys and the matching connector 172,174 that in metal/dust environment, provides between level Hermetic Package.Rubber closed cell cystosepiment 170 is in the anti-tracking insulation that can improve during the abominable metal dust environmental condition between the terminal that cooperates connector (as power connection 150), reduce control module 100 or comprise the assembly cost of the power tool 10 of control module 100, and can be controlled at terminal better and/or cooperate the fast sealing that connects seam between the connector that disconnects.
Fig. 6 A to 6F is the figure that concerns between current divider, coupling coil and the accessory plate that illustrates according to the utility model one exemplary embodiment.Fig. 6 A to 6F shows the setting of coupling coil assembly 250 on accessory plate 200.Fig. 6 A to 6F is not connected with other for purpose clearly illustrates speed change dial 270.
Fig. 6 A and 6B show the preceding and bottom surface of accessory plate 200 and coupling coil assembly 250.Fig. 6 C and 6D show the axle side of coupling coil assembly 250 and accessory plate 200 and decompose axis side view.Fig. 6 E is the sectional view that the line A-A along Fig. 6 A obtains, and Fig. 6 F is the sectional view that the line B-B along Fig. 6 B obtains.
In example, accessory plate 200 can comprise the coupling coil assembly 250 on it.Accessory plate 200 can be configured as profile phase adaptation with tool outer casing 18 inside.Accessory plate 200 is PCB, and for example can be made by the baseplate material such as silicon, Si oxide and/or other silicon substrate structure that are fit to.Accessory plate 200 can comprise a plurality of guide hole 210-213 and slit 215, with with the lead 258 of coupling coil 251 (or from the contact wire 277 of the holding wire 168 or the speed change dial 270 of female connector 165, not shown in Fig. 6) import in the accessory plate 200, for example among Fig. 6 D and the 6F shown in best like that.
Fig. 7 is the exploded view that illustrates according to the setting of coupling coil assembly, screen board and the speed change dial and the female connector of the control module of the utility model one exemplary embodiment on accessory plate.With reference to figure 7, accessory plate 200 also can comprise as potentiometric speed change dial 270.Dial 270 comprises knob 271, is operably connected to the potentiometer 273 of the potentiometer cover 274 that comprises a pair of leaf spring 275.Potentiometer 273 comprises the contact wire 277 in the corresponding guide hole 211 that can be inserted into accessory plate 200, is used to be welded to plate 200.The a pair of buckle-type joint 276 of potentiometer cover 274 is by corresponding slit 215 and accessory plate 200 engagements, so that the interference fit engagement of package 274 to accessory plate 200 to be provided.
As shown in Figure 7, provide female connector 165 to be used for the engagement that is connected with the respective terminal pin of I/O connector 160, so that control module 100 is electrically connected to accessory plate 200.Female connector 165 comprises many signal line 168 and is used as the hot line 169 of the input power lead that leads to control module 100.Holding wire 168 comprises that starting knob 271 by the user offers first holding wire of control module 100, the 3rd ground connection connector holding wire that is used to measure the secondary signal line of tachometer (coupling coil 251) and is used for hot line 169 based on velocity variations with signal, so that the circuit electronic device in the control module 100 (that is, active parts, microprocessor etc.) is switched on.Can holding wire 168 be fixed on the accessory plate 200 by scolder at guide hole 212 places.
Fig. 8 is the exploded isometric view that illustrates according to the component parts of the speed change dial of the utility model one exemplary embodiment.With reference to figure 8, speed change dial 270 comprises knob 271, potentiometer 273 and potentiometer cover 274.Package 274 is engaged to and supports semi-ring 283, and this support semi-ring 283 comprises a pair of leaf spring 275.Each leaf spring 275 all comprises dent projection 282.This package 274 comprises a pair of alignment tool 284, and it can be received in the corresponding guide hole 213 of accessory plate, is used for package is welded to plate 200.
Therefore, as mentioned above, one exemplary embodiment of the present utility model relates to the control module assembly in the power tool enclosure, is used for the operation of control tool motor.This assembly comprises having top cover, bottom, have the PCB of control assembly on it and can be formed in and be used to control assembly that the control module of the liner of tolerance limit is provided between top cover and the bottom.This assembly comprises the accessory plate that the control module with tool outer casing inside is close.
In example, liner for control assembly provides tolerance limit, so that control assembly is fixedly connected on the PCB, and is configured to support the coupling coil assembly with accessory plate in welding procedure, be used to detect the speed of power tool motor.The coupling coil assembly can comprise the coupling coil that is used for the testing tool motor speed, supports the screen board of coupling coil and at the encapsulating material of the screen board inside of sealing coupling coil.Coupling coil comprises many leads that pass the encapsulating material extension and the screen board that is used to be connected to accessory plate.
Screen board comprises can be made the screen board snap fit be connected to the pair of joint at accessory plate edge and be used for spring action is applied to a plurality of gaps on the joint.This screen board can indeformable high-temperature material constitutes up to about 300 ℃ of welding temperatures by constituting opposing.In example, screen board can be filled nylon by 30% glass and be constituted.
Accessory plate supports the speed change dial, is used to adjust the speed of tool motor.Dial comprises rotatable knob, operably receives the potentiometer of knob and be used to support potentiometric potentiometer cover.Rotatable knob is included on its outer peripheral face in order to face that speed represents and a plurality of protruding members on the perimeter surface externally to be provided, and realizes that with the user of cause instrument fingerhold cooperates.
Potentiometer comprises and being used for and the central porisity of the central shaft snap fit of knob and a plurality of hard dent on portion's perimeter surface within it, with given dent projections mesh on given leaf spring, so that tactile feedback is offered the user of activation knob.Potentiometer comprises many contact wires that can be inserted in the corresponding guide hole of accessory plate.The potentiometer cover comprises a pair of leaf spring, and each leaf spring all has the dent projection from its surperficial upper process.The potentiometer cover comprises a pair of buckle-type joint, with by respective slots engagement accessory plate, thereby provides the interference fit engagement of potentiometer cover to accessory plate.
This assembly can further comprise female connector, is used for the engagement that is connected with the respective terminal pin of the I/O connector of control module, so that control module is electrically connected to accessory plate.Female connector comprises many signal line and is used as to the hot line of the input power lead of control module.In an example, holding wire comprise by the user encourage knob based on velocity variations with signal offer control module first signal, measure sub-coupling coil detection signal the secondary signal line and be used for the 3rd ground connection connector signal of hot line, thereby charging is at the control assembly of control module inside.
Therefore, as mentioned above, in another example, the coupling coil assembly can be arranged on the control module of the tool outer casing inside that is connected to power tool and on its circuit external plate (accessory plate), is used for the operation of control tool motor.The coupling coil assembly comprises the coupling coil that is used for the testing tool motor speed, supports the screen board of coupling coil and at the encapsulating material of the screen board inside of encapsulation coupling coil.Coupling coil comprises many leads that pass the encapsulating material extension and the screen board that is used to be connected to accessory plate.
Screen board is positioned near the accessory plate end of motor armature of motor, so that with respect to a plurality of magnet rising coupling coils on the armature.Screen board comprises the pair of joint that can make the screen board snap fit be connected to the accessory plate edge and spring action can be applied to a plurality of gaps on the joint.In example, screen board can indeformable high-temperature material constitutes up to about 300 ℃ welding temperature by being configured to bear, the nylon of filling as 30% glass.
In another described example, the speed change dial that is used to adjust the motor speed of power tool is arranged on circuit board (accessory plate), and this circuit board is connected on the control module of power tool enclosure and in its outside.Dial comprises rotatable knob, is operably connected to the potentiometer of this knob and is used for supporting this potentiometric potentiometer cover.
Rotatable knob comprises and is used to provide that speed represents at the face on its outer peripheral face and be used for being used by tool user a plurality of protruding members on the externally perimeter surface that fingerhold cooperates.This rotatable knob also is included in a plurality of hard dent on its inner perimeter surface, with given dent projections mesh on given leaf spring, offer the user of activation knob thereby will contact feedback.
Potentiometer comprises and is used for the central porisity of the central shaft snap-fit engagement of knob and can be inserted into many contact wires in the corresponding guide hole of accessory plate.
The potentiometer cover comprises a pair of leaf spring, and each leaf spring all has the dent projection from its protrusion of surface.This potentiometer cover comprises a pair of buckle-type joint, by corresponding slit engagement accessory plate, thereby provides the interference fit of potentiometer cover to accessory plate.The potentiometer cover comprises a pair of alignment tool, and this alignment tool can be contained in the corresponding guide hole of accessory plate, is used for the potentiometer cover is fixed to accessory plate.
Fig. 9 A illustrates the encapsulation nozzle injects the control module of encapsulation filler relation to control module inside top view; Fig. 9 B is the sectional view along the line A-A of Fig. 9 A, so that the encapsulation filler direction according to the utility model one exemplary embodiment to be shown.
Can cause at the one or more bubbles of the inner formation of the encapsulation of module in module 100 inner unsuitable packaging technologies.This can cause module 100 can not carry out High-Voltage Insulation testing the safe compliance needs that reach specific.
With reference to figure 9A and 9B,, be injected in the module 100 will encapsulate filler avoiding in the effort of the inner formation of module package bubble, can using the pressurization packaging technology.This can finish by having two open ports or hole, and these two ports or hole are by at the top cover 110 and the inlet 913 between the bottom 120 that receive encapsulation nozzle 905 and be formed at exhaust port 915 in the bottom 120.The encapsulating compound flow direction 917 (seeing arrow) around the PCB 140 can be controlled in hole 913,915, so that air is released from module 100.
Therefore, constitute the module 100 that assists in substantially sealing with two open ports 913,915 and allow the mobile control in one direction of encapsulation billot.Port 913 is used for sucking pressurization encapsulation materials flow, and another exhaust port 915 is used for getting rid of gas and becomes up to encapsulating material and can see at exhaust port 915, thereby the encapsulation injection technology of module 100 inside has been finished in expression.See as best in Fig. 9 B, the direction 917 that this set provides 913 the encapsulation of entering the mouth certainly to fill, top side with the PCB 140 that is filled in top cover 110 inside, it passes the recess 910 at PCB 140 bottom margin places, reaches exhaust port 915 with the bottom side that allows encapsulating compound to fill PCB 140 up to encapsulating compound.
Above-mentioned encapsulation fill process 913 is shifted gas onto exhaust port 915 from entering the mouth thus on a direction 917, so that with encapsulating material complete filling module 100, thereby avoid forming therein bubble.The diameter of this inlet 913 is enough little, is fixed to and is sealed on the inlet 913 to allow pressurization encapsulation nozzle 905.Under the effort of the encapsulation fill process control that improves on module 100 inside, discharged apace than the exhaust end oral pore 917 permission air of minor diameter.
Described one exemplary embodiment of the present utility model thus, it can change in many ways is tangible.Do not think that this variation has broken away from the spirit and scope of the utility model one exemplary embodiment, and be apparent that to those skilled in the art all this modifications all mean and comprise within the scope of the claims.
Claims (58)
1. control module in the power tool enclosure, this module comprises:
Top cover,
Bottom,
Printed circuit board (PCB) (PCB) has control assembly on it,
It is characterized in that liner is formed between top cover and the bottom, be used to control assembly that tolerance limit is provided.
2. according to the control module of claim 1, wherein control assembly comprises one or more power resistors, triac, current divider and microcontroller.
3. according to the control module of claim 2, wherein bottom provides the electric insulation of three end two-phase reverse-blocking tetrode thyristors.
4. according to the control module of claim 1, wherein top cover is as heat radiation.
5. according to the control module of claim 1, further comprise:
A pair of fast connection power connection and
The I/O connector, it has a plurality of terminal pins that are used for power supply and data are offered module.
6. according to the control module of claim 5, wherein power connection is of different sizes and length.
7. according to the control module of claim 5, wherein liner comprises the screen board part, and it matches with joint on bottom, to encapsulate the I/O connector hermetically.
8. according to the control module of claim 1, further comprise:
Fixture is used for top cover is fixed to bottom.
9. control module according to Claim 8, wherein fixture comprises:
Threaded fixator, it can pass the single hole in the top cover and pass mating holes in the inside modules power device, thereby with the nut engagement, wherein nut is located in the liner of power device below in the formed groove.
10. according to the control module of claim 9, wherein threaded fixator is used for heat is extracted out from power device, and by top cover this heat that sheds.
11. the control module according to claim 1 further comprises:
Encapsulating material, it is arranged in the liner, is used for package parts are remained on the appropriate position, and is used to control module that the individual layer insulation is provided.
12. according to the control module of claim 11, wherein encapsulating material is injected in the module, to avoid forming therein bubble.
13. according to the control module of claim 11, wherein encapsulating material has V0 incendivity grade.
14. according to the control module of claim 1, wherein top cover is the metal that is selected from the group that comprises copper, aluminium, stainless steel, zinc (ZA8) and allumen.
15. according to the control module of claim 1, wherein bottom is made of the thermoplasticity or other plastic material that have V0 incendivity grade and satisfy UL 741 standards.
16. according to the control module of claim 1, wherein bottom is made of nylon 6-6 polyimides.
17. according to the control module of claim 1, wherein module is electrically connected to the accessory plate in tool outer casing inside.
18. the control module according to claim 1 further comprises:
The I/O connector, it has a plurality of terminal pins, is used for power and data are offered module,
Wherein accessory plate supports its coupling coil assembly that is used for the testing tool motor speed, is used to adjust the speed change dial of tool motor speed, and be connected to many signal line of outconnector, be used for power and data being offered control module by the I/O connector.
19. according to the control module of claim 1, wherein liner is connected on the PCB, is used for during welding procedure for control assembly provides tolerance limit, thereby regularly control assembly is connected to PCB.
20. a power tool comprises:
Tool outer casing,
Tool motor,
Tool work accessory by tool motor energising and
Control module, it is motor operated to be used for control tool, and this control module comprises:
Top cover,
Bottom,
Printed circuit board (PCB) (PCB), have on it control assembly and
It is characterized in that liner is formed between top cover and the bottom, be used to control assembly that tolerance limit is provided.
21. the power tool according to claim 20 further comprises:
Accessory plate, its tool outer casing inside on the control module that is connected to wherein.
22. according to the power tool of claim 21, wherein
Accessory plate supports the coupling coil assembly be used for the testing tool motor speed, be used to adjust tool motor speed the speed change dial and
Accessory plate can be connected to many signal line of female connector, by the I/O connector power and data are offered control module.
23. a control module assembly, it is used for the operation of the motor of control tool in the inside of power tool, and this assembly comprises:
Control module has top cover, bottom, has the printed circuit board (PCB) (PCB) of control assembly on it, it is characterized in that liner is formed between top cover and the bottom, and is connected on the PCB, be used to control assembly provide tolerance limit and
Accessory plate, it is used to support control module wherein near control module.
24. according to the assembly of claim 23, wherein during welding procedure, liner provides tolerance limit for control assembly, thereby regularly control assembly is connected on the PCB.
25. according to the assembly of claim 23, wherein accessory plate is configured to support the coupling coil assembly, is used to detect the motor speed of power tool.
26. according to the assembly of claim 25, wherein the coupling coil assembly further comprises:
Coupling coil, it is used for the speed of testing tool motor,
Screen board, its be used to support coupling coil and
Encapsulating material, its encapsulation coupling coil screen board inside,
Wherein coupling coil comprises a plurality of leads that passes encapsulating material and screen board extension, is used for the connection to accessory plate.
27. according to the assembly of claim 26, wherein screen board comprises:
Pair of joint, its screen board snap fit can be connected to accessory plate the edge and
A plurality of liners, it can be applied to spring action on the joint.
28. according to the assembly of claim 26, wherein indeformable high-temperature material constitutes screen board up to about 300 ℃ welding temperature by resisting.
29. according to the assembly of claim 26, wherein screen board comprises the nylon that 30% glass is filled.
30. according to the assembly of claim 24, wherein accessory plate supports the speed change dial, is used to adjust the speed of tool motor.
31. according to the assembly of claim 30, wherein dial comprises:
Rotatable knob,
Potentiometer, its be operably connected to knob and
The potentiometer cover is used to support potentiometer.
32. according to the assembly of claim 31, wherein the potentiometer cover comprises a pair of leaf spring, each leaf spring all has the dent projection from its protrusion of surface.
33. according to the assembly of claim 32, wherein
Potentiometer comprises central porisity, be used for the central shaft snap-fit engagement of knob and
Rotatable knob comprises a plurality of hard dent on the perimeter surface within it, with given dent projections mesh at given leaf spring, so that will contact the user that feedback offers activation knob.
34. according to the assembly of claim 31, wherein potentiometer comprises many contact wires in the corresponding guide hole that can be inserted into accessory plate.
35. according to the assembly of claim 31, wherein the potentiometer cover comprises a pair of buckle-type joint, with by respective slots engagement accessory plate, thereby the potentiometer cover is engaged on the accessory plate by interference fit.
36. the assembly according to claim 24 further comprises:
Female connector is used to connect the respective terminal pin of the I/O connector that meshes control module, so that control module is electrically connected to accessory plate.
37. according to the assembly of claim 36, wherein female connector comprises many signal line and as the hot line of input power lead of guiding control module into.
38. the assembly according to claim 37 further comprises:
Coupling coil is used for the speed of testing tool motor,
Wherein holding wire further comprises:
First holding wire is used for based on velocity variations signal being offered control module by user's activation knob,
The secondary signal line, be used to measure from the detection signal of coupling coil and
The 3rd ground connection connector holding wire is used for hot line, with the control assembly energising to control module inside.
39. according to the assembly of claim 31, wherein the potentiometer cover comprises a pair of alignment tool that is contained in the corresponding guide hole of accessory plate, is used for the potentiometer cover is fixed to accessory plate.
40. according to the assembly of claim 31, wherein rotatable knob further comprises:
Face on its outer peripheral face, with provide speed represent and
Externally a plurality of protruding members on the perimeter surface are used for realizing that by tool-user fingerhold cooperates.
41. an auxiliary circuit board component comprises
Accessory plate, it is near the control module of tool outer casing inside,
The coupling coil assembly, it is connected on the accessory plate, be used to detect the power tool motor speed and
The speed change dial,
It is characterized in that described speed change dial is connected on the accessory plate, is used to adjust the speed of tool motor.
42. a coupling coil assembly, it is arranged on the circuit board that is connected on the control module, and this control module can be formed in the inside of power tool shell, is used for the operation of control tool motor, and this coupling coil assembly comprises:
Coupling coil is used for the speed of testing tool motor,
Screen board, its support coupling coil and
Encapsulating material, its encapsulation coupling coil screen board inside,
It is characterized in that coupling coil comprises many leads that pass encapsulating material and screen board extension, is used for the connection to accessory plate.
43. according to the assembly of claim 42, wherein screen board is positioned near the end of the accessory plate the motor armature of motor, so that with respect to a plurality of magnet rising coupling coils on the armature.
44. according to the assembly of claim 42, wherein screen board comprises:
Pair of joint, can make the screen board snap fit to the edge of accessory plate and
A plurality of liners can be applied to joint with spring action.
45. according to the assembly of claim 42, wherein indeformable high-temperature material constitutes screen board up to about 300 ℃ welding temperature by resisting.
46. according to the assembly of claim 42, wherein screen board comprises 30% glass filling nylon.
47. according to the assembly of claim 42, wherein circuit board is in the outside of control module.
48. a speed change dial is used to adjust the speed of power tool motor, dial is arranged on the circuit board that is connected to control module, and control module can be formed in the inside of power tool shell, is used for the operation of control tool motor, and dial comprises:
Rotatable knob,
Potentiometer, it is operably connected on the knob,
It is characterized in that one is used to support potentiometric potentiometer cover.
49. according to the dial of claim 48, wherein the potentiometer cover comprises a pair of leaf spring, each leaf spring all has the dent projection from its protrusion of surface.
50. according to the dial of claim 49, wherein
Potentiometer comprises central porisity, be used for the central shaft snap-fit engagement of knob and
Rotatable knob is included in a plurality of hard dent on its inner perimeter surface, with given dent projections mesh to given leaf spring offer the user of activation knob so that will contact feedback.
51. according to the dial of claim 48, wherein potentiometer comprises a plurality of contact wires, can be inserted in the corresponding guide hole of accessory plate.
52. according to the dial of claim 48, wherein the potentiometer cover comprises a pair of snap fit joint, with by respective slots engagement accessory plate, thereby the interference fit of potentiometer cover is engaged to accessory plate.
53. according to the dial of claim 48, wherein the potentiometer cover comprises a pair of alignment tool in the corresponding contact hole that is contained in accessory plate, is used for the potentiometer cover is fixed to accessory plate.
54. according to the dial of claim 48, wherein rotatable knob further comprises:
Face on its outer peripheral face, with provide speed represent and
Externally a plurality of protruding members on the perimeter surface are used for realizing that by tool-user fingerhold cooperates.
55. according to the dial of claim 48, wherein circuit board is in the outside of control module.
56. a control module, it is in the inside of power tool shell, and this module comprises:
Top cover,
Bottom,
Printed circuit board (PCB) (PCB) has control assembly thereon,
Encapsulating material, it is arranged on the inside of top cover and bottom so as the control assembly on sealing PCB and its and
The gap, it is formed between top cover and the bottom, is used to control assembly that tolerance limit is provided.
57. according to the module of claim 56, wherein encapsulating material is injected in the module, to avoid forming therein bubble.
58. the module according to claim 56 further comprises;
First port, it is arranged between top cover and the bottom, with under pressure serve as inject encapsulating material provide inlet hole and
Second port, it is arranged in the bottom, so that the flow path of encapsulating material is provided under pressure, thereby uses the encapsulating material packing module, with sealing PCB and control assembly wherein.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72601105P | 2005-10-12 | 2005-10-12 | |
| US60/726,011 | 2005-10-12 | ||
| US11/441,339 | 2006-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201275751Y true CN201275751Y (en) | 2009-07-22 |
Family
ID=40731849
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201478219U Expired - Lifetime CN201275751Y (en) | 2005-10-12 | 2006-10-12 | Universal control module |
| CNU2006900000617U Expired - Lifetime CN201248022Y (en) | 2005-10-12 | 2006-10-12 | Electric tool with motor control module |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006900000617U Expired - Lifetime CN201248022Y (en) | 2005-10-12 | 2006-10-12 | Electric tool with motor control module |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN201275751Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025108A (en) * | 2011-09-21 | 2013-04-03 | 罗伯特·博世有限公司 | Media sealing of electronic components |
| CN105818112A (en) * | 2015-01-22 | 2016-08-03 | 苏州宝时得电动工具有限公司 | Power device, electric tools and electric tool system |
| CN105881129A (en) * | 2016-05-20 | 2016-08-24 | 浙江博来工具有限公司 | Removable brushless motor controller for polishing machine |
| CN111168671A (en) * | 2020-01-02 | 2020-05-19 | 珠海格力电器股份有限公司 | Servo driver, control method and control system |
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| CN102656657B (en) * | 2009-12-16 | 2015-04-15 | 胡斯华纳有限公司 | Electric hand tool with activation indication device |
| JP2012076160A (en) * | 2010-09-30 | 2012-04-19 | Hitachi Koki Co Ltd | Power tool |
| CN103796802B (en) * | 2011-08-30 | 2016-06-15 | 喜利得股份公司 | For to the method and the device that carry out current monitoring by battery-driven Hand-held machine tool |
| CN103036454A (en) * | 2011-10-08 | 2013-04-10 | 通嘉科技股份有限公司 | Power supply, power management device and low-voltage and excess-temperature protective method |
| CN103326644B (en) * | 2013-07-04 | 2015-11-25 | 丽水学院 | A kind of control method of series-wound motor speed-adjusting driving system |
| CN104518483A (en) * | 2013-09-26 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Overload protection system |
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| TWI683526B (en) * | 2018-05-25 | 2020-01-21 | 茂達電子股份有限公司 | Motor driving circuit |
| CN110875706B (en) * | 2018-08-29 | 2021-08-27 | 南京德朔实业有限公司 | Electric tool |
| CN109586536A (en) * | 2018-12-29 | 2019-04-05 | 陕西特恩电子科技有限公司 | A kind of AC servo motor and operation method having positive and negative rotating function |
| WO2021083164A1 (en) * | 2019-10-31 | 2021-05-06 | 苏州宝时得电动工具有限公司 | Adapter for electric tool and electric tool |
| CN114193402B (en) * | 2021-12-30 | 2024-04-16 | 无锡知荣电子有限公司 | Control method of electric impact tool |
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2006
- 2006-10-12 CN CNU2006201478219U patent/CN201275751Y/en not_active Expired - Lifetime
- 2006-10-12 CN CNU2006900000617U patent/CN201248022Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025108A (en) * | 2011-09-21 | 2013-04-03 | 罗伯特·博世有限公司 | Media sealing of electronic components |
| CN103025108B (en) * | 2011-09-21 | 2017-04-12 | 罗伯特·博世有限公司 | Media sealing of electronic components |
| CN105818112A (en) * | 2015-01-22 | 2016-08-03 | 苏州宝时得电动工具有限公司 | Power device, electric tools and electric tool system |
| CN105881129A (en) * | 2016-05-20 | 2016-08-24 | 浙江博来工具有限公司 | Removable brushless motor controller for polishing machine |
| CN105881129B (en) * | 2016-05-20 | 2018-02-02 | 浙江博来工具有限公司 | A kind of detachable brushless motor controller of sander |
| CN111168671A (en) * | 2020-01-02 | 2020-05-19 | 珠海格力电器股份有限公司 | Servo driver, control method and control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201248022Y (en) | 2009-05-27 |
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