TWM645896U - Electric tool and electronic clutch thereof - Google Patents
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Abstract
一種電動工具之電子離合器,包含一基板、一調整裝置,及一控制器。該基板包括一呈弧狀之可變電阻區,該可變電阻區具有一電阻段及一功能段,該功能段之電阻係數低於該電阻段。該調整裝置可受操作而改變一電連接件接觸該可變電阻區之位置,並輸出一輸出信號。該控制器根據該輸出信號與一電阻資料,判斷該電連接件接觸該可變電阻區之位置,並分別於判斷接觸該功能段或該電阻段時,輸出對應接觸位置的功能或轉速的一控制信號。藉此,可以僅藉由操作該調整裝置,即能達到切換不同轉速、不同功能的功效,操作上十分便利。An electronic clutch for an electric tool includes a base plate, an adjustment device, and a controller. The substrate includes an arc-shaped variable resistance area. The variable resistance area has a resistance section and a functional section. The resistance coefficient of the functional section is lower than that of the resistance section. The adjusting device can be operated to change the position of an electrical connection member in contact with the variable resistance area and output an output signal. The controller determines the position where the electrical connector contacts the variable resistance area based on the output signal and a resistance data, and outputs a function or rotation speed corresponding to the contact position when it determines that the functional segment or the resistance segment is contacted. control signal. In this way, the effect of switching different rotation speeds and different functions can be achieved just by operating the adjustment device, which is very convenient in operation.
Description
本新型是有關於一種工具及該工具所使用的離合器,特別是指一種電動工具及該電動工具所使用的電子離合器。The present invention relates to a tool and a clutch used by the tool, in particular to an electric tool and an electronic clutch used by the electric tool.
習知之電動工具是藉由改變壓簧的彈簧力大小,達到調整扭力輸出目的,然而,此種機械架構會造成零件組裝複雜、成本增加。Conventional power tools achieve the purpose of adjusting the torque output by changing the spring force of the compression spring. However, this kind of mechanical structure makes the assembly of parts complex and increases the cost.
為了解決上述問題,目前發展出使用電子離合器進行控制,電子離合器是以電子電路輸出反饋信號給控制器,再經由控制器調節馬達輸出(扭力及轉速),藉此,可以減少許多機械結構,達到降低成本及減輕重量之功效。如中國實用新型專利公告號第CN 202779907號所示,即為一種應用電子離合器的電動工具,然而,由於其架構為:於電路板上設置複數並聯電阻,並使用接觸刷切換選擇所電連接的電阻,其電子元件數量眾多,製程較多且成本較高,且當要切換其他功能(例如,鑽孔(Drill)或捶打(Hammer))時,仍需操作另外的開關才能進行切換,使用上仍然不夠便利。In order to solve the above problems, electronic clutches have been developed for control. The electronic clutch uses an electronic circuit to output a feedback signal to the controller, and then adjusts the motor output (torque and speed) through the controller. This can reduce many mechanical structures and achieve Reduce costs and reduce weight. As shown in Chinese Utility Model Patent Announcement No. CN 202779907, it is an electric tool using an electronic clutch. However, because its structure is: setting multiple parallel resistors on the circuit board, and using a contact brush to switch to select the electrically connected Resistors have a large number of electronic components, require a lot of manufacturing processes, and are expensive. Moreover, when you want to switch other functions (such as drilling or hammering), you still need to operate another switch to switch. Use the following Still not convenient enough.
因此,本新型之目的,即在提供一種能解決上述問題的電動工具之電子離合器。Therefore, the purpose of the present invention is to provide an electronic clutch for electric tools that can solve the above problems.
於是,本新型電動工具之電子離合器,包含一基板、一調整裝置,及一控制器。Therefore, the electronic clutch of the new electric tool includes a substrate, an adjustment device, and a controller.
該基板包括一呈弧狀之可變電阻區,該可變電阻區具有一電阻段,及一連接該電阻段的功能段,該功能段之電阻係數低於該電阻段。The substrate includes an arc-shaped variable resistance area. The variable resistance area has a resistance section and a functional section connected to the resistance section. The resistance coefficient of the functional section is lower than that of the resistance section.
該調整裝置包括一接觸於該可變電阻區的電連接件,該電連接件可受帶動而改變接觸該可變電阻區之位置,並輸出一相關於所接觸位置之電阻的輸出信號。The adjustment device includes an electrical connector contacting the variable resistance area. The electrical connector can be driven to change the position of contact with the variable resistance area and output an output signal related to the resistance of the contacted position.
該控制器電連接該電連接件,根據該輸出信號與一電阻資料,判斷該電連接件接觸該可變電阻區之位置,於判斷接觸該功能段時,輸出對應接觸位置的功能的一控制信號,於判斷接觸該電阻段時,輸出對應接觸位置的轉速的該控制信號。The controller is electrically connected to the electrical connector, determines the position where the electrical connector contacts the variable resistance area based on the output signal and a resistance data, and outputs a control function corresponding to the contact position when determining contact with the functional segment. signal, when it is determined that the resistance segment is contacted, the control signal corresponding to the rotation speed of the contact position is output.
因此,本新型之目的,即在提供一種能解決上述問題的電動工具。Therefore, the purpose of the present invention is to provide an electric tool that can solve the above problems.
於是,本新型電動工具,包含一驅動單元,及一如上述的電子離合器。Therefore, the new electric tool includes a drive unit and the above-mentioned electronic clutch.
該驅動單元包括一用以提供運作動力的馬達,該驅動單元接收一控制信號以調整該馬達之轉速。The driving unit includes a motor for providing operating power, and the driving unit receives a control signal to adjust the rotation speed of the motor.
本新型之功效在於:藉由將該可變電阻區分為該電阻段與該功能段,並搭配設置該電連接件進行切換,可以僅藉由操作該調整裝置帶動該電連接件改變接觸該可變電阻區之位置,即能達到切換不同轉速、不同功能的功效,操作上十分便利。The function of the present invention is that by dividing the variable resistor into the resistance segment and the functional segment, and setting the electrical connector for switching, the electrical connector can be driven to change the contact with the variable resistor only by operating the adjustment device. The position of the variable resistance area can achieve the effect of switching different speeds and different functions, which is very convenient in operation.
參閱圖1及圖2,本新型電動工具之一實施例,包含一機架1、一電源單元2、一驅動單元3、一偵測單元4、一控制單元5,及一電子離合器6。Referring to Figures 1 and 2, an embodiment of the new electric tool includes a frame 1, a power supply unit 2, a drive unit 3, a detection unit 4, a control unit 5, and an electronic clutch 6.
該機架1用以設置該電源單元2與該電子離合器6,並容設該驅動單元3、該偵測單元4與該控制單元5。The frame 1 is used to install the power supply unit 2 and the electronic clutch 6, and accommodate the drive unit 3, the detection unit 4 and the control unit 5.
該電源單元2包括一電池21及一電源電路22。該電源電路22將該電池21所提供的電源(例如DC 18V),經過穩壓及變壓後,提供給內部電路使用,該電源電路22例如可包括兩個提供不同電壓的低壓差穩壓器221(Low-dropout regulator,縮寫為LDO),以分別向該控制單元5與一驅動電路32供電。The power unit 2 includes a battery 21 and a power circuit 22 . The power circuit 22 provides the power supply (for example, DC 18V) provided by the battery 21 to the internal circuit after voltage stabilization and voltage transformation. The power circuit 22 may include, for example, two low-dropout voltage regulators that provide different voltages. 221 (Low-dropout regulator, abbreviated as LDO) to supply power to the control unit 5 and a driving circuit 32 respectively.
該驅動單元3包括一馬達31、該驅動電路32及一切換開關電路33。該馬達31用以提供運作動力,並接受控制而以不同轉速運轉,該馬達31例如為直流無刷馬達(BLDC,Brushless DC Motor)。該驅動電路32接收該控制單元5所輸出之一控制信號(PWM訊號),並根據所述PWM訊號的占空比(Duty Ratio)控制該切換開關電路33驅動該馬達31以目標轉速轉動。其中,該切換開關電路33例如可使用半導體(MOSFET)開關實施。The driving unit 3 includes a motor 31 , the driving circuit 32 and a switch circuit 33 . The motor 31 is used to provide operating power and is controlled to operate at different speeds. The motor 31 is, for example, a brushless DC motor (BLDC). The drive circuit 32 receives a control signal (PWM signal) output by the control unit 5, and controls the switch circuit 33 to drive the motor 31 to rotate at a target speed according to the duty ratio of the PWM signal. The switching circuit 33 may be implemented using a semiconductor (MOSFET) switch, for example.
該偵測單元4包括一馬達電流偵測電路41、一電池電壓檢知電路42及一扳機開關偵測電路43。該馬達電流偵測電路41用以偵測該馬達31之電流,以供該控制單元5監控該馬達31之電流。例如,可於電流過大時,控制該驅動電路32停止該馬達31運作,以達到過電流保護效果。該電池電壓檢知電路42連接於該電池21與該控制單元5間,用以偵測該電池21的電壓,以供該控制單元5根據該電池21之電壓調整輸出至該驅動電路32的PWM訊號的占空比,而使該馬達31維持以目標轉速進行運轉。該扳機開關偵測電路43用以偵測使用者是否按壓一扳機11,並輸出至該控制單元5。The detection unit 4 includes a motor current detection circuit 41 , a battery voltage detection circuit 42 and a trigger switch detection circuit 43 . The motor current detection circuit 41 is used to detect the current of the motor 31 for the control unit 5 to monitor the current of the motor 31 . For example, when the current is too large, the drive circuit 32 can be controlled to stop the operation of the motor 31 to achieve an overcurrent protection effect. The battery voltage detection circuit 42 is connected between the battery 21 and the control unit 5 for detecting the voltage of the battery 21 so that the control unit 5 adjusts the PWM output to the driving circuit 32 according to the voltage of the battery 21 The duty cycle of the signal is adjusted to maintain the motor 31 operating at the target speed. The trigger switch detection circuit 43 is used to detect whether the user presses a trigger 11 and output it to the control unit 5 .
由於本領域中具有通常知識者根據以上說明可以推知上述架構之擴充細節,因此不多加說明。Since those with ordinary knowledge in the art can deduce the extended details of the above architecture based on the above description, no further description will be given.
該控制單元5用以控制該驅動電路32以驅動該馬達31運轉。該控制單元5可設計為具有A/D轉換、I/O偵測、通訊傳輸、PWM輸出等功能之電路,例如,可使用微控制器(Microcontroller,縮寫為MCU)實施。The control unit 5 is used to control the driving circuit 32 to drive the motor 31 to operate. The control unit 5 can be designed as a circuit with functions such as A/D conversion, I/O detection, communication transmission, PWM output, etc., for example, it can be implemented using a microcontroller (Microcontroller, abbreviated as MCU).
參閱圖3、圖4及圖5,該電子離合器6包括一基板61、一調整裝置62及一控制器。於本實施例中,將該控制器整合於該控制單元5,因此,以下以該控制單元5代稱。然而,於實際應用上,該控制器亦可依需求而設計為獨立於該控制單元5外的電子元件或電路。Referring to Figures 3, 4 and 5, the electronic clutch 6 includes a base plate 61, an adjustment device 62 and a controller. In this embodiment, the controller is integrated into the control unit 5, so it is referred to as the control unit 5 below. However, in practical applications, the controller can also be designed as an electronic component or circuit independent of the control unit 5 according to requirements.
該基板61對應於該調整裝置62設置,並呈弧形,於本實施例中,該基板61是就近設置於一減速裝置91的外殼上,但亦可設置於其他鄰近對應於該調整裝置62的位置,不以此為限。該基板61可使用印刷電路板(PCB,Printed circuit board)實施,其表面上設置呈弧狀之一可變電阻區611及一導電區616。界定一穿過弧狀之該可變電阻區611之圓心的軸線L。The base plate 61 is disposed corresponding to the adjusting device 62 and has an arc shape. In this embodiment, the base plate 61 is disposed nearby on the shell of a deceleration device 91, but it can also be disposed adjacent to the adjusting device 62. The location is not limited to this. The substrate 61 can be implemented using a printed circuit board (PCB), with an arc-shaped variable resistance region 611 and a conductive region 616 provided on its surface. An axis L passing through the center of the arc-shaped variable resistance region 611 is defined.
該可變電阻區611兩端分別電連接至不同電位,例如,一端電連接至正電位端(VCC),另一端則電連接至接地端(GND)。該可變電阻區611具有一弧狀之電阻段612,及一連接該電阻段612且持續呈弧狀延伸的功能段613,並可選地還具有一連接於該電阻段612相反於該功能段613之一端的緩衝段614,及二位於該可變電阻區611兩末端的連接段615。Both ends of the variable resistance region 611 are electrically connected to different potentials, for example, one end is electrically connected to the positive potential terminal (VCC), and the other end is electrically connected to the ground terminal (GND). The variable resistance area 611 has an arc-shaped resistance section 612, and a functional section 613 connected to the resistance section 612 and extending continuously in an arc shape, and optionally also has a functional section 613 connected to the resistance section 612 opposite to the function. A buffer section 614 at one end of the section 613, and two connecting sections 615 located at both ends of the variable resistance area 611.
該電阻段612須選用具有較大之電阻係數的材質,以使每一接觸位置的電阻值容易被區別,例如,可選用碳膜電阻實施。該功能段613可選用電阻係數低的材質,以使該功能段613整段的電位差異小,如此,以減少所占用的電壓區間,而提高該電阻段612可使用的電壓區間,進而增加每一接觸位置間的可分辨度。該緩衝段614同樣可選用電阻係數低的材質,以使該緩衝段614整段的電位差異小,如此,可將該電阻段612末端電位的區域延伸,以增加元件組裝時的可容許公差。該功能段613與該緩衝段614之材質例如可選擇銀或銅等低電阻係數的材質。其中,依延伸長度由大至小依序為該電阻段612、該功能段613與該緩衝段614。The resistance section 612 must be made of a material with a large resistance coefficient so that the resistance value of each contact position can be easily distinguished. For example, a carbon film resistor can be used. The functional section 613 can be made of a material with a low resistance coefficient, so that the potential difference of the entire functional section 613 is small, thereby reducing the occupied voltage range and increasing the usable voltage range of the resistive section 612, thereby increasing the The resolution between contact locations. The buffer section 614 can also be made of a material with a low resistivity, so that the potential difference of the entire section of the buffer section 614 is small. In this way, the potential area at the end of the resistance section 612 can be extended to increase the allowable tolerance during component assembly. The functional section 613 and the buffer section 614 can be made of a material with a low resistivity, such as silver or copper. Among them, the resistor section 612, the functional section 613 and the buffer section 614 are arranged in descending order in order of extension length.
該等連接段615作為電性連接使用,其材質可選用銅實施,可分別供設置至少一導通孔(VIA)以透過該基板61背面之空間進行訊號拉線。如圖4中所示,由於該等連接段615分別會接到正電位端(VCC)與接地端(GND),因此,為圖式清楚起見,直接將該等導通孔依電位標示為VCC、GND。該等連接段615是透過各設置一導通孔VCC、GND,再透過該基板61背面之訊號線連接至圖4下方對應的二導通孔VCC、GND後,再向外接線而取得電源。The connecting sections 615 are used as electrical connections, and their material can be made of copper. At least one via hole (VIA) can be provided for signal wiring through the space on the back of the substrate 61 . As shown in Figure 4, since the connection sections 615 will be connected to the positive potential terminal (VCC) and the ground terminal (GND) respectively, for the sake of clarity, the via holes are directly labeled as VCC according to the potential. ,GND. Each of the connecting sections 615 is provided with a via hole VCC and GND, and then connected to the corresponding two via holes VCC and GND at the bottom of Figure 4 through the signal line on the back of the substrate 61, and then connected externally to obtain power.
該導電區616電連接該控制單元5且呈弧狀,可圍繞於該可變電阻區611外圍,或鄰近於該可變電阻區611內周。該導電區616與該可變電阻區611同心設置且於周向上位置重合。該導電區616選用電阻係數低的材質,以使該導電區616整段基本為相同電位,例如,可選用銅實施。同樣地,該導電區616也是透過設置一導通孔617,再透過該基板61背面之訊號線連接至圖4下方的另一導通孔618,接著再向外輸出至該控制單元5。The conductive area 616 is electrically connected to the control unit 5 and is arc-shaped. It can surround the periphery of the variable resistance area 611 or be adjacent to the inner periphery of the variable resistance area 611 . The conductive area 616 and the variable resistance area 611 are concentrically arranged and coincide with each other in the circumferential direction. The conductive region 616 is made of a material with a low resistivity so that the entire conductive region 616 has substantially the same potential. For example, it can be made of copper. Similarly, the conductive area 616 is also connected to another conductive hole 618 at the bottom of FIG. 4 through a signal line on the back of the substrate 61 through a conductive hole 617 , and then output to the control unit 5 .
參閱圖4及圖6,值得說明的是,該基板61也可如圖6所示為環狀,如此,可供設置長度較長的該可變電阻區611,而可方便於區分出較多的段數。例如,於圖4中搭配設置了S1~S11等11個段數,而於圖6中搭配設置了S1~S14等14個段數。然而,若後續的該控制單元5的解析度足夠,較短的長度也可以搭配較高的段數,並不以此為限。於圖6中,該導電區616可以搭配該可變電阻區611而呈同心設置的環狀或弧狀。Referring to Figures 4 and 6, it is worth noting that the substrate 61 can also be annular as shown in Figure 6. In this way, the variable resistance region 611 with a longer length can be provided, which can easily distinguish more number of segments. For example, in Figure 4, 11 segments such as S1~S11 are configured together, while in Figure 6, 14 segments such as S1~S14 are configured together. However, if the resolution of the subsequent control unit 5 is sufficient, a shorter length can also be matched with a higher number of segments, and is not limited to this. In FIG. 6 , the conductive area 616 can be arranged in a concentric ring or arc shape in conjunction with the variable resistance area 611 .
參閱圖6與下表1,表1所示為一電阻資料之範例,該電阻資料為各功能及段數所對應的預設電壓範圍,不同段數對應於不同的該馬達31(見圖2)之轉速,並且,不同段數也可以再搭配設定不同的過電流保護值。如圖6所示,該電阻段612基本上是對應至螺絲起子(Screwdriver)之功能(圖6中,該緩衝段614視為該電阻段612末端之電位延伸),圖中以S進行標示。由於本實施例中,該電阻資料是具有14個段數,即,是將該電阻段612區分為14小段,每一小段分別對應段數1至14(S1~S14),於圖6中以S1、S14分別標示該電阻段612之頭尾段數位置作為示意。該功能段613是對應至鑽孔(Drill)與捶打(Hammer)功能,於圖中分別以D、H標示。值得說明的是,由於段數的數量是根據預存的該電阻資料而設定,因此,當需要更改段數數量時,僅需更新該電阻資料(無需更改該電阻段612或該基板61的設置),即可改變該電阻段612所對應的段數數量。
參閱圖4及圖6,於本實施例中,是以該等連接段615分別連接至正電位端(VCC)與接地端(GND)以提供電壓,由於該等連接段615使用銅實施,該功能段613與該緩衝段614使用銀實施,所占電壓皆小,主要電壓區間將分布於該電阻段612中,該電阻段612之各小段的電壓將依預設段數而對應至表1中的複數電壓範圍,而該功能段613中對應鑽孔功能、捶打功能的位置處(D、H),同樣對應至表1中的預設電壓範圍。需說明的是,由於鑽孔與捶打皆會對應至該馬達31(見圖2)之最大轉速,因此,兩者可共用相同的電壓範圍。鑽孔與捶打運行上之差異在於,於捶打運作時,該電動工具的一輸出軸(圖未示)會進行軸向的往復移動,此部分技術如美國專利號US7314097B2、US5505271A、US10737373B2所示,在此不再贅述。Referring to Figures 4 and 6, in this embodiment, the connection sections 615 are respectively connected to the positive potential terminal (VCC) and the ground terminal (GND) to provide voltage. Since the connection sections 615 are made of copper, the The functional section 613 and the buffer section 614 are made of silver and occupy a small voltage. The main voltage range will be distributed in the resistor section 612. The voltage of each small section of the resistor section 612 will correspond to Table 1 according to the preset number of sections. The plural voltage ranges in , and the positions (D, H) corresponding to the drilling function and hammering function in the function section 613 also correspond to the preset voltage range in Table 1. It should be noted that since drilling and hammering both correspond to the maximum rotation speed of the motor 31 (see Figure 2), they can share the same voltage range. The difference between drilling and hammering operations is that during the hammering operation, an output shaft (not shown) of the electric tool will reciprocate in the axial direction. This part of the technology is shown in US Patent Nos. US7314097B2, US5505271A, and US10737373B2. I won’t go into details here.
參閱圖3、圖4、圖7及圖8,該調整裝置62包括一電連接件621、一調整環624及一卡合件627。其中,該調整裝置62還可選地包括一輔助件629。Referring to FIGS. 3 , 4 , 7 and 8 , the adjustment device 62 includes an electrical connector 621 , an adjustment ring 624 and a latch 627 . The adjustment device 62 optionally further includes an auxiliary component 629 .
該電連接件621具有一設置於該調整環624的本體622,及二由該本體622間隔延伸的接觸片623。該等接觸片623分別接觸該可變電阻區611與該導電區616,並經該導電區616輸出一相關於所接觸位置之電阻的輸出信號至該控制單元5。該電連接件621為導電材質,例如,使用金屬彈片實施。The electrical connector 621 has a body 622 provided on the adjustment ring 624, and two contact pieces 623 extending from the body 622 at intervals. The contact pieces 623 respectively contact the variable resistance area 611 and the conductive area 616, and output an output signal related to the resistance of the contact position to the control unit 5 through the conductive area 616. The electrical connector 621 is made of conductive material, for example, made of metal springs.
該調整環624環繞該軸線L設置,並可受使用者操作而以該軸線L為中心旋轉,進而帶動該電連接件621沿該可變電阻區611之弧形改變接觸位置。該調整環624具有環繞該軸線L形成於內周面的一凹槽組,該凹槽組為位置對應該卡合件627的複數段數凹槽625及至少一功能凹槽626。該等段數凹槽625位置對應於該電阻段612,並對應於螺絲起子(S)之功能,該等段數凹槽625之數量是相同於段數數量,例如,於本實施例中,該電阻資料預存11個段數,則該等段數凹槽625需搭配設置為11個(S1~S11),當需要更改段數數量時,需搭配更改該等段數凹槽625之數量。該功能凹槽626位置對應該功能段613,且其數量是根據所設定之額外功能的數量而定,例如,當只額外設計鑽孔(D)(或只額外設定捶打(H))之功能時,只需搭配設置一個該功能凹槽626,當如本實施例一樣,同時設計有鑽孔(D)與捶打功能(H)時,則搭配設置分別對應鑽孔(D)與捶打(H)功能的兩個該功能凹槽626。於圖8中,同樣以S、D、H標示對應於螺絲起子、鑽孔與捶打功能之位置,並以S1、S11分別標示對應於螺絲起子功能的頭尾段數之位置作為示意。The adjustment ring 624 is arranged around the axis L and can be rotated around the axis L by a user's operation, thereby driving the electrical connector 621 to change the contact position along the arc of the variable resistance region 611 . The adjustment ring 624 has a groove group formed on the inner circumferential surface around the axis L. The groove group is a plurality of grooves 625 positioned corresponding to the engaging member 627 and at least one functional groove 626 . The positions of the segment number grooves 625 correspond to the resistor segments 612 and correspond to the functions of the screwdriver (S). The number of the segment number grooves 625 is the same as the number of segments. For example, in this embodiment, The resistance data is pre-stored with 11 segments, so the segment number grooves 625 need to be set to 11 (S1~S11). When the number of segments needs to be changed, the number of the segment number grooves 625 needs to be changed. The position of the functional groove 626 corresponds to the functional segment 613, and its number is determined according to the number of set additional functions. For example, when only the additional function of drilling (D) is designed (or only the additional function of hammering (H) is set) When the function groove 626 is used, only one functional groove 626 is needed. When the drilling (D) and hammering (H) functions are designed at the same time as in this embodiment, the corresponding drilling (D) and hammering (H) functions are correspondingly provided. ) function of the two functional grooves 626. In FIG. 8 , S, D, and H are also used to mark the positions corresponding to the screwdriver, drilling, and hammering functions, and S1 and S11 are used to mark the positions corresponding to the head and tail segments of the screwdriver function.
該卡合件627對應於該調整環624設置,於本實施例中,該卡合件627是就近固定設置於位於該調整環624內部的一環件92上,但亦可設置於其他鄰近對應於該調整環624的位置,不以此為限。該卡合件627例如使用具有一凸部628的彈片實施。隨該調整環624之旋轉,該凸部628切換卡合於該等段數凹槽625與該等功能凹槽626,該卡合件627與該電連接件621位置對應,而使該卡合件627之凸部628卡合於該等段數凹槽625時,該電連接件621接觸於該電阻段612,於該卡合件627之凸部628卡合於該等功能凹槽626時,該電連接件621接觸於該功能段613。The engaging member 627 is disposed corresponding to the adjusting ring 624. In this embodiment, the engaging member 627 is fixedly disposed on a ring member 92 located inside the adjusting ring 624. However, it may also be disposed on another adjacent ring member 92 corresponding to the adjusting ring 624. The position of the adjustment ring 624 is not limited to this. The engaging member 627 is implemented by, for example, an elastic piece having a protruding portion 628 . As the adjustment ring 624 rotates, the convex portion 628 switches to engage with the stage grooves 625 and the functional grooves 626. The engaging member 627 corresponds to the position of the electrical connector 621, so that the engagement When the convex part 628 of the member 627 is engaged with the segmented grooves 625, the electrical connection member 621 is in contact with the resistor segment 612, and when the convex part 628 of the engaging member 627 is engaged with the functional grooves 626 , the electrical connector 621 is in contact with the functional section 613 .
該輔助件629設置於該卡合件627的對稱位置,且使用與該卡合件627相同的金屬彈片實施。該輔助件629之作用為加強該調整環624旋轉時的穩定性。於本實施例中,為了搭配該輔助件629,故增設複數輔助凹槽630而使該調整環624內部的凹槽呈對稱狀,若未設置該輔助件629時,則可以如圖9所示僅設置該等段數凹槽625與該等功能凹槽626即可。The auxiliary member 629 is disposed at a symmetrical position of the engaging member 627 and is made of the same metal elastic piece as the engaging member 627 . The auxiliary component 629 is used to enhance the stability of the adjustment ring 624 during rotation. In this embodiment, in order to match the auxiliary part 629, a plurality of auxiliary grooves 630 are added to make the grooves inside the adjustment ring 624 symmetrical. If the auxiliary part 629 is not provided, it can be as shown in Figure 9 Only the stage number grooves 625 and the functional grooves 626 are provided.
參閱圖3及圖8,值得說明的是,於本實施例中,是以該電連接件621設置於該調整環624,該基板61相對該電連接件621固定設置於該電動工具內部,以使該調整環624旋轉時帶動該電連接件621沿該基板61之弧形移動。但其設置位置亦可對調,將該基板61設置於該調整環624,而該電連接件621則相對該基板61固定設置於該電動工具內部,如此,仍可達到使該基板61與該電連接件621間進行相對移動之效果。Referring to FIGS. 3 and 8 , it is worth explaining that in this embodiment, the electrical connector 621 is disposed on the adjustment ring 624 , and the base plate 61 is fixedly disposed inside the electric tool relative to the electrical connector 621 . When the adjustment ring 624 is rotated, the electrical connector 621 is driven to move along the arc of the base plate 61 . However, its installation position can also be reversed. The base plate 61 is placed on the adjustment ring 624, and the electrical connector 621 is fixedly disposed inside the electric tool relative to the base plate 61. In this way, the base plate 61 and the electric connector can still be connected. The effect of relative movement between the connecting parts 621.
再者,於本實施例中,是以該卡合件627固定設置於該電動工具內部,而該等段數凹槽625與該等功能凹槽626則形成於該調整環624作為說明,但同樣地,該等段數凹槽625、該等功能凹槽626與該卡合件627之設置位置也可以對調,僅須兩者間可相對運動即可。Furthermore, in this embodiment, it is explained that the engaging member 627 is fixedly disposed inside the electric tool, and the segmented grooves 625 and the functional grooves 626 are formed in the adjusting ring 624. However, Similarly, the positions of the segmented grooves 625, the functional grooves 626 and the engaging member 627 can also be exchanged, as long as the two can move relative to each other.
參閱圖6及圖9,圖9所示為搭配圖6之環狀該基板61時的該調整環624與該卡合件627之設置,由於此樣態中,該等段數凹槽625所分布的空間較大,因此,僅設置一個該卡合件627而不設置該輔助件629(見圖8)。Referring to Figures 6 and 9, Figure 9 shows the arrangement of the adjustment ring 624 and the engaging member 627 when used with the annular base plate 61 in Figure 6. In this state, the grooves 625 are The distribution space is relatively large, therefore, only one engaging member 627 is provided without the auxiliary member 629 (see FIG. 8 ).
參閱圖2、圖6及圖9,於實際應用時,使用者旋轉該調整環624以選取所需段數或功能,而使該卡合件627卡合於對應之該段數凹槽625或該功能凹槽626,使該電連接件621接觸於該電阻段612或該功能段613的預定位置。接著,該控制單元5經該導電區616接收該輸出信號,並將該輸出信號進行A/D(Analog to Digital,類比轉數位)轉換後,根據該輸出信號與該電阻資料(表1),判斷該電連接件621(見圖3)接觸該可變電阻區611之位置。當該控制單元5判斷出該輸出信號之電壓位於表1中的哪個電壓範圍後,即可對應得出目前的功能及段數。該控制單元5於判斷接觸該功能段613時,輸出對應接觸位置的功能(鑽孔或捶打)的該控制信號,於判斷接觸該電阻段612時,輸出對應接觸位置的該馬達31轉速(段數S1~S14)的該控制信號。Referring to Figure 2, Figure 6 and Figure 9, in actual application, the user rotates the adjustment ring 624 to select the required number of stages or functions, so that the engaging member 627 engages in the corresponding groove 625 of the stage or function. The functional groove 626 enables the electrical connector 621 to contact a predetermined position of the resistive section 612 or the functional section 613 . Then, the control unit 5 receives the output signal through the conductive area 616 and performs A/D (Analog to Digital) conversion on the output signal. According to the output signal and the resistance data (Table 1), Determine the position where the electrical connector 621 (see FIG. 3) contacts the variable resistance region 611. When the control unit 5 determines which voltage range in Table 1 the voltage of the output signal is in, the current function and segment number can be correspondingly obtained. When the control unit 5 determines that the functional segment 613 is contacted, it outputs the control signal corresponding to the function (drilling or hammering) of the contact position; when it determines that the resistance segment 612 is contacted, it outputs the rotation speed (segment) of the motor 31 corresponding to the contact position. S1~S14) of this control signal.
參閱圖3及圖4,經由以上的說明,本實施例的功效如下:Referring to Figure 3 and Figure 4, through the above description, the effects of this embodiment are as follows:
一、藉由將該可變電阻區611區分為該電阻段612與該功能段613,並搭配設置該電連接件621進行切換,可以僅藉由操作該調整裝置62,即能達到切換不同轉速、不同功能的功效,操作上十分便利。並且,相較於習知技術,不需額外焊接眾多電阻元件,製程方便,成本較低。1. By dividing the variable resistance area 611 into the resistance section 612 and the functional section 613, and providing the electrical connector 621 for switching, different rotational speeds can be switched by simply operating the adjustment device 62. , different functions, very convenient to operate. Moreover, compared with the conventional technology, there is no need to additionally weld many resistive components, and the manufacturing process is convenient and the cost is low.
二、由於該控制單元5(控制器)是根據該電阻資料判斷該電連接件621接觸該可變電阻區611之位置,因此,當要應用不同轉速數量、不同功能的該電動工具時,僅須對應調整該調整裝置62(例如,變更該等段數凹槽625與該等功能凹槽626之數量),與變更該控制單元5(控制器)內存的該電阻資料即可,該基板61之設置則無需變動。也就是,本實施例僅需要藉由修改小部分程式與更動小部分架構,即能應用於同系列之不同轉速、功能的電動工具,通用性極佳。2. Since the control unit 5 (controller) determines the position where the electrical connector 621 contacts the variable resistance area 611 based on the resistance data, when the electric tools with different rotational speeds and different functions are to be used, only It is necessary to adjust the adjustment device 62 accordingly (for example, change the number of the segment grooves 625 and the functional grooves 626), and change the resistance data in the memory of the control unit 5 (controller). The substrate 61 The settings do not need to be changed. That is to say, this embodiment only needs to modify a small part of the program and change a small part of the structure, so it can be applied to the same series of electric tools with different rotation speeds and functions, and has excellent versatility.
三、藉由設置與該可變電阻區611同心設置的該導電區616,使該電連接件621於移動時,能同時接觸該可變電阻區611與該導電區616,如此,使該輸出信號由該可變電阻區611短暫經該電連接件621後,即回到電路板(該基板61)上的線路(該導電區616)進行傳遞,如此,可以具有較佳的信號傳遞品質。3. By arranging the conductive area 616 concentrically with the variable resistance area 611, the electrical connector 621 can contact the variable resistance area 611 and the conductive area 616 at the same time when moving. In this way, the output The signal is transmitted from the variable resistance area 611 to the electrical connector 621 for a short time and then returns to the circuit (the conductive area 616) on the circuit board (the substrate 61). In this way, better signal transmission quality can be achieved.
四、藉由設置該緩衝段614,可將該電阻段612末端電位的區域延伸,可以在能利用完整電壓區間的情況下,增加元件組裝時的可容許公差。4. By arranging the buffer section 614, the end potential area of the resistor section 612 can be extended, thereby increasing the allowable tolerance during component assembly while utilizing the complete voltage range.
綜上所述,本新型電動工具及其電子離合器,確實能達成本新型之目的。To sum up, the new electric tool and its electronic clutch can indeed achieve the purpose of the new type.
惟以上所述者,僅為本新型之實施例而已,當不能以此限定本新型實施之範圍,凡是依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本新型專利涵蓋之範圍內。However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by this new patent.
1:機架 11:扳機 2:電源單元 21:電池 22:電源電路 221:低壓差穩壓器 3:驅動單元 31:馬達 32:驅動電路 33:切換開關電路 4:偵測單元 41:馬達電流偵測電路 42:電池電壓檢知電路 43:扳機開關偵測電路 5:控制單元 6:電子離合器 61:基板 611:可變電阻區 612:電阻段 613:功能段 614:緩衝段 615:連接段 616:導電區 617,618:導通孔 62:調整裝置 621:電連接件 622:本體 623:接觸片 624:調整環 625:段數凹槽 626:功能凹槽 627:卡合件 628:凸部 629:輔助件 630:輔助凹槽 91:減速裝置 92:環件 L:軸線 D:鑽孔功能 H:捶打功能 S,S1,S11,S14:螺絲起子功能 VCC:正電位端或正電位端之導通孔 GND:接地端或接地端之導通孔1:Rack 11: Trigger 2:Power supply unit 21:Battery 22:Power circuit 221:Low dropout voltage regulator 3: Drive unit 31: Motor 32: Drive circuit 33: Switch circuit 4:Detection unit 41: Motor current detection circuit 42:Battery voltage detection circuit 43: Trigger switch detection circuit 5:Control unit 6: Electronic clutch 61:Substrate 611: Variable resistance area 612: Resistor section 613: Function segment 614: Buffer segment 615:Connection segment 616: Conductive area 617,618: Via hole 62:Adjustment device 621: Electrical connectors 622:Ontology 623:Contact piece 624:Adjustment ring 625: Segment number groove 626: Functional groove 627:Latching parts 628:convex part 629: Auxiliary parts 630: Auxiliary groove 91: Reduction device 92:Ring piece L: axis D:Drilling function H: Beating function S, S1, S11, S14: Screwdriver function VCC: positive potential end or via hole of positive potential end GND: Ground terminal or via hole of ground terminal
本新型之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是本新型電動工具的一個實施例於移除部分機架後的示意圖; 圖2是該實施例的一電路示意圖; 圖3是該實施例的一不完整的分解圖; 圖4是該實施例的一基板的示意圖; 圖5是該實施例的一電路示意圖,說明一電子離合器的等效電路; 圖6是該實施例的該基板的另一樣態的示意圖; 圖7是該實施例的一示意圖,說明一電連接件設置於一調整環; 圖8是該實施例的一示意圖,說明一卡合件與複數段數凹槽及複數功能凹槽的位置對應關係;及 圖9是該實施例的另一示意圖,說明搭配圖6之該基板時的複數段數凹槽及複數功能凹槽之樣態。 Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a schematic diagram of an embodiment of the new electric tool after removing part of the frame; Figure 2 is a circuit schematic diagram of this embodiment; Figure 3 is an incomplete exploded view of this embodiment; Figure 4 is a schematic diagram of a substrate in this embodiment; Figure 5 is a circuit schematic diagram of this embodiment, illustrating the equivalent circuit of an electronic clutch; Figure 6 is a schematic diagram of another aspect of the substrate in this embodiment; Figure 7 is a schematic diagram of this embodiment, illustrating that an electrical connector is disposed on an adjustment ring; Figure 8 is a schematic diagram of this embodiment, illustrating the positional correspondence between a clamping component and a plurality of stages of grooves and a plurality of functional grooves; and FIG. 9 is another schematic diagram of this embodiment, illustrating the appearance of multiple stages of grooves and multiple functional grooves when used with the substrate of FIG. 6 .
61:基板 61:Substrate
611:可變電阻區 611: Variable resistance area
612:電阻段 612: Resistor section
613:功能段 613: Function segment
614:緩衝段 614: Buffer segment
615:連接段 615:Connection segment
616:導電區 616: Conductive area
617,618:導通孔 617,618: Via hole
D:鑽孔功能 D:Drilling function
H:捶打功能 H: Beating function
S,S1,S11:螺絲起子功能 S, S1, S11: Screwdriver function
VCC:正電位端之導通孔 VCC: via hole of positive potential end
GND:接地端之導通孔 GND: Ground via hole
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW111211631U TWM645896U (en) | 2022-10-25 | 2022-10-25 | Electric tool and electronic clutch thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW111211631U TWM645896U (en) | 2022-10-25 | 2022-10-25 | Electric tool and electronic clutch thereof |
Publications (1)
Publication Number | Publication Date |
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TWM645896U true TWM645896U (en) | 2023-09-11 |
Family
ID=88926540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW111211631U TWM645896U (en) | 2022-10-25 | 2022-10-25 | Electric tool and electronic clutch thereof |
Country Status (1)
Country | Link |
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TW (1) | TWM645896U (en) |
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2022
- 2022-10-25 TW TW111211631U patent/TWM645896U/en unknown
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