CN101062560B

CN101062560B - Electric tool

Info

Publication number: CN101062560B
Application number: CN2006100816072A
Authority: CN
Inventors: 强尼·鲍瑞那图; 朱世燕
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2006-04-30
Filing date: 2006-04-30
Publication date: 2011-06-29
Anticipated expiration: 2026-04-30
Also published as: CN101062560A

Abstract

The invention relates to an automatic screw driver with lighting function that comprises the body of the tool, charging device connected with the tool body which has the motor, battery, working element rotated by the said motor, lighting device connected to the said battery, control circuit in coordination with the lighting device that can be used independently. When the tool body is charging, the control circuit control lighting element will not illuminate, when the charging device is cut off, it will beam for emergency lightening.

Description

Electric tool

Technical field

The present invention relates to a kind of electric tool, especially a kind of electric tool with function of emergency illumination.

Background technology

Usually, existing electric tool such as electric screw is criticized, electric household dust catcher etc. all only has a little light source as very faint floor light of when work, indicator light indicating the working condition of electric tool perhaps is set on instrument, this type of assist illuminator or indicator light all only have miscellaneous function for electric tool, and do not have independently function.

Criticize the combination tool that is provided with auxiliary lighting apparatus as a kind of electric screw that U.S.'s reissue patent is disclosed for No. 38729, comprise one handle and the cylinder that is connected with handle, wherein be provided with battery in the handle, the cylinder end output shaft that has been rotatably connected, one switch is electrically connected between battery and the output shaft and is used for output shaft is controlled, one lighting device comprises two globular bulbs, they are arranged at respectively on the cylinder end face of both sides of output shaft, two globular bulbs and switch electrically connect, to such an extent as to two globular bulbs are lighted the luminous target that is used to illuminate when switch is opened.

The main purpose that above-mentioned lighting device is arranged on the electric tool is can criticize work to electric screw to carry out floor light under the condition of work of insufficient light, this lighting device function singleness, and illumination capability is also very limited.

Summary of the invention

For overcoming the deficiencies in the prior art, the invention provides the composite electric instrument that a kind of illumination intensity is big, have independent illumination and emergency lighting concurrently.

Technical scheme of the present invention is achieved in that a kind of electric tool, comprise tool body, charging device with the tool body electric connection, be provided with motor, battery in the described tool body, and by the operation element of described motor-driven rotation, described tool body is provided with the emergency lighting device that is connected with battery, and this emergency lighting device has control circuit, and whether described control circuit switches on according to charging device, and selectively to control emergency lighting device luminous; Described control circuit comprises electrode input end, negative input, capacitor C 1, capacitor C 2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, triode Q1, triode Q2, light-emitting diode D1, light-emitting diode D2, diode D3, diode D4, emergency light L, and control switch K1; The positive pole of capacitor C 1 connects electrode input end, and the negative pole of capacitor C 1 connects negative input; One end of resistance R 1 connects electrode input end, and the other end of resistance R 1 connects the positive pole of light-emitting diode D1, and the negative pole of light-emitting diode D1 connects negative input; The emitter of triode Q1 connects electrode input end, and the collector electrode of triode Q1 connects an end of resistance R 2, and the other end of resistance R 2 connects the positive pole of light-emitting diode D2, and the negative pole of light-emitting diode D2 connects negative input; The positive pole of diode D3 connects electrode input end, and the negative pole of diode D3 connects an end of resistance R 3, and the other end of resistance R 3 connects the base stage of triode Q1; One end of resistance R 4 connects the negative pole of diode D3, the other end of resistance R 4 connects the base stage of triode Q2, resistance R 5 and capacitor C 2 are connected in parallel between the base stage and negative input of triode Q2, the collector electrode of triode Q2 connects an end of resistance R 6, the other end of resistance R 6 connects the positive pole of emergency light L, the negative pole of emergency light L connects the end of control switch K1, the other end of control switch K1 connects negative input, the emitter of triode Q2 connects the negative pole of diode D4, the negative pole of the cathode connecting diode D3 of diode D4; The negative pole of the cathode connecting diode D4 of described battery, the negative pole of described battery connects negative input; Described tool body is that electric screw is criticized, the cylindrical body that comprises handle and be connected in handle, and described operation element is the output shaft that is connected in the cylindrical body front end; Described emergency lighting device is arranged at the handle end away from output shaft, is provided with in obtuse angle between the axis of described handle and the electrical axis; Described charging device comprises acceptance division, base portion, and the adapter that is connected with base portion, and described acceptance division plugs in order to receiving tool main body cylindrical body, and described adapter is connected with power supply; On the described handle control switch is set, is used to control the driving work of motor output shaft; Described power supply is an AC power, or DC power supply; The open and close that described control switch K1 is used for illumination apparatus is controlled; Described control circuit is provided with second controlling organization in parallel with described control switch K1, when described tool body is inserted in when charging on the charging device, and the described second controlling organization auto-closing, control circuit then is switched on.Described battery is a rechargeable battery, and described battery provides working power for motor; Described lighting device and battery electrically connect, and described battery is for providing working power for lighting device; Described lighting device is provided with the focusing function.

Compared with prior art, the invention has the beneficial effects as follows: this electric tool combines instrument cleverly with lighting device, standalone feature as instrument or lighting device not only can be provided, therefore function of emergency illumination when also having as power cut-off brings more function to select with convenient to the user.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the present invention's an electric tool front view.

Fig. 2 is a cutaway view of facing mode according to Fig. 1.

Fig. 3 is the partial enlarged drawing by mark part on Fig. 2.

Fig. 4 is the front view of electric tool of the present invention when charging on charging device.

Fig. 5 is the positive apparent direction cutaway view of electric tool of the present invention when separating with charging device.

Fig. 6 is the positive apparent direction cutaway view of electric tool of the present invention when combining with charging device.

Fig. 7 is the electrical block diagram of first kind of execution mode of the present invention.

Fig. 8 is the electrical block diagram of second kind of execution mode of the present invention.

Wherein: 1, tool body; 2, handle; 3, cylindrical body;

4, lighting device; 5, motor; 6, battery;

7, control switch; 8, pivoted housing; 9, illuminating lamp;

10, output shaft; 11, charging device; 12, acceptance division;

13, base portion; 14, transparency cover; 15, spring;

16, cavity; 17, support; 18, drill bit;

19, reflection shield; 20, adapter; 21a, external screw thread;

21b, internal thread; 22, cavity; 23, platen;

24, push-plate; 25, contact end; 26, boss;

27, contact; 28, spring; 29, strutting piece;

30, slide; 31, base plate; 32, contact end face;

40, illumination controlling organization; 41, looping pit; X, handle axial line;

Y, electrical axis line; β, obtuse angle; E (E '), control circuit;

E1, charging circuit; E2 (2 '), emergency lighting circuit; Q1 (2), triode;

R1, (2,3,4,5,6) resistance; C1 (2), electric capacity; L, emergency light;

D1, (2,3,4) diode; B, battery; K1 (2), control switch;

Embodiment

The present invention has disclosed a kind of electric tool that has function of emergency illumination, emergency lighting when this electric tool can provide power cut-off to the operator, this electric tool can use as instrument independently or as lighting device again simultaneously, can realize on a kind of tool device that therefore different functions selects use for the user.

With reference to Fig. 1, shown in Figure 2, be that a kind of electric screw is criticized, this electric screw is criticized tool body 1 and is provided with the handle 2 of operating gripping for the user, one cylindrical body 3 is connected in handle 2 front ends, certainly, those skilled in the art can be as required, with handle 2 pivotally connected and cylindrical body 3, handle 2 can relative within the specific limits cylindrical body carry out pivoted like this, be provided with motor 5 in the cylindrical body 3, suitable position at handle 2 is provided with the control switch 7 that makes things convenient for user's control operation, one output shaft 10 is rotatably connected and drives rotation in the end of cylindrical body 3 and by

motor

3,10 drill bit (not shown)s in order to the various different sizes of clamping of output shaft are tightened screw or are unscrewed the work of spiral shell pine, be provided with in the handle 2 to motor 5 driving work electronic battery 6 is provided; Wherein control switch 7 is mainly used in open and close that electric screw is criticized and the forward and backward working condition of output shaft 10 is controlled.Be a β angle between handle 2 in the present embodiment and the cylindrical body 3, the β angle between the axial line X of the handle 2 shown in the figure and the electrical axis line Y in obtuse angle, this obtuse angle scope be 90 the degree to 180 the degree between; In addition, also be provided with a lighting device 4 at end away from the handle 2 of output shaft 10, this lighting device 4 comprises that one is threadedly connected to the pivoted housing 8 that electric screw is criticized handle 2, and one be arranged at transparency cover 14 on the outside end face of pivoted housing 8, this transparency cover 14 can be that glass or other material that is beneficial to light penetration are made, in the cavity 22 that transparency cover 14 and pivoted housing 8 form, be provided with illuminating lamp 9, an and reflection shield 19 that is fixedly connected on pivoted housing 8, wherein reflection shield 19 is arranged to flared structure, its part near illuminating lamp 9 is provided with looping pit 41, the light of illuminating lamp 9 sees through by looping pit 41, after reflection shield 19 reflections, penetrate and be used for illumination, illuminating lamp 9 is LED lamps, or can substitute by other light-emitting component; Wherein the intensity of illuminating lamp 9 can be configured by actual needs, the electric current approximation of this case illuminating lamp 9 when luminous lighting is 180mA, the power approximation is 648mW, and its illumination intensity is more much better than than common assist illuminator, therefore can satisfy the required illumination intensity as independent illumination; The battery 6 that is arranged at the inside of handle 2 is secondary rechargeable batteries, and this battery 6 electrically connects with illuminating lamp 9 and the luminous power supply that provides of illuminating lamp 9 is provided.

Shown in Fig. 3 a, illumination controlling organization 40 comprises pivoted housing 8, one fixedly is coupled to the platen 23 on the pivoted housing 8, one push-plate 24 is connected with platen 23, one boss 26 is set on the push-plate 24 in addition, and then fixedly connected one deck conductive contact blade 27 made of copper on the circumferential outer edge of boss 26, one spring 15 is supported between battery 6 and the

illuminating lamp

9,9 of illuminating lamps are fixedly connected on the push-plate 24, wherein platen 23 and push-plate 24 are made by working of plastics, and handle 2 stretches into the contact jaws that turn round 25 that parts in pivoted housing 9 cavitys 22 form one 90 degree; Wherein the inboard of pivoted housing 8 is provided with external screw thread 21a, be provided with internal thread 21b with the matched position of pivoted housing 8 on the handle 2, this part internal thread 21a on the pivoted housing 8 is meshing with each other with the external screw thread 21b on the handle 2 and is connected, make that the user only need be by rotation pivoted housing 8, just can make pivoted housing 8 relative handles 2 produce certain displacement, thereby the open and close that 40 pairs of illuminating lamps 9 of illumination controlling organization can be set in lighting device 4 is controlled; For example aluminium, zinc or other material are made by electric conducting material for the housing of handle 2 and contact jaw 25; Usually, pivoted housing 8 screw-threaded couplings are on handle 2 housings, platen 23 is exerted pressure with 8 pairs of springs 15 of pivoted housing, therefore spring 15 is in confined state, still has certain spacing d between the boss 26 of push-plate 24 and the contact jaw 25, contact 27 can't contact with contact jaw 25 and make the screwdriver lighting circuit can't conducting, and this moment, illuminating lamp 9 was in closed condition.Shown in Fig. 3 b, rotation pivoted housing 8 makes it the displacement that relative handle 2 produces spring 15 elastic stretch directions, at this moment, elasticity 15 heads on platen 23 and moves to its direction of extension, push-plate 24 and illuminating lamp 9 are along with platen 23 produces corresponding displacement, when pivoted housing 8 rotated to a certain position, the boss 26 outer rim contacts 27 of push-plate 24 contacted with contact jaw 25 and make the conducting of screwdriver lighting circuit, and this moment, illuminating lamp 9 quilts were lighted luminous.Like this, regulate pivoted housing 8 by rotation and just can realize that the operating state of illumination apparatus 4 controls, and the not influence of suspension control switch 7 of the work of illuminating lamp 9, therefore, this electric tool can be separately as screwdriver or illuminating lamp use.

With reference to shown in Figure 4, charging device 11 is provided with an acceptance division 12, being used to receive the cylindrical body 3 that electric screw criticizes plugs, one base portion 13 fixedly connects with acceptance division 12, and one adapter 20 electrically connect by lead and base portion 13, wherein adapter 20 is criticized work for electric screw suitable DC power supply is provided in order to be connected with AC power.Certainly, those skilled in the art it is contemplated that the power supply that is connected with adapter 20 also can be a DC power supply, charge by providing charging device 11 to criticize to electric screw after adapter 20 transformations; In addition, at the corresponding site of charging device 11 the indicator light (not shown) is set, for example redness or green indicating lamp can be respectively applied for indication charged state or full state.Charging device 11 so is provided with, mainly be to make things convenient for actor electric screw to be criticized after the instrument of using cylindrical body 3 to insert the acceptance division 12 of charging device 11 smoothly and charge, so not only be to guarantee to have in the battery 6 sufficient electric weight when using this electric tool next time, while charging device 11 also is equivalent to one and shelves support, for storing of electric tool provides a platform.

With reference to shown in Figure 5, base portion 13 bottoms are provided with a dismountable base plate 31, and in base portion 13, form a cavity 16, be provided with a plurality of supports 17 in the cavity 16, support 17 can be used for storing the drill bit 18 or the related accessories device of different size, as long as also can take, put drill bit from base cavity 16 fast by base plate 31, thereby the work of criticizing for electric screw provides more convenience; In addition, because acceptance division 12 is to be used to receive the insertion charging that electric screw is criticized cylindrical body 3, therefore fixedly installed a strutting piece 29 in the bottom of acceptance division 12, strutting piece 29 is a hollow cylindrical body, in these strutting piece 29 cylindrical body, be provided with a support spring 28, one slide 30 is slidingly connected in strutting piece 29 cylinders and supports in spring 28, and slide 30 can or stretch relative strutting piece 29 along with the compression of spring 28 and slide up and down, and strutting piece 29 and slide 30 are made by electric conducting material.Electric screw is criticized when charging on charging device 11, is switched on for guaranteeing the charging circuit between charging device 11 and the tool body 1, and the cylindrical body 3 of tool body 1 is also made by electric conducting material, and forms a contact end face 32 in output shaft 12 adjacent positions.

With reference to shown in Figure 6, when the acceptance division 12 of cylindrical body 3 insertion charging devices 11 charges, the output shaft 12 of cylindrical body 3 ends is criticized at electric screw under self the action of gravity and is contacted with slide 30, slide 30 compresses springs 28 and moves down, and this moment, strutting piece 29 contacted with the end face 32 that contacts of cylindrical body 3; Like this, between the output shaft 10 that slide 30 and electric screw are criticized, strutting piece 29 electrically connects with contacting between the end face 32 to form, and whole like this charging circuit was switched in the moment that tool body 1 inserts acceptance division 12, and the batteries 6 that are arranged in tool body 1 handle 2 are charged.

With reference to shown in Figure 7, be that electric screw is criticized first kind of control circuit E schematic diagram when charging device 4 charges, be the live part circuit shown in the E1 wherein, and be when charging device 11 meets with sudden power shown in the E2 that illuminating lamp 9 is as the emergency lighting partial circuit of emergency light L.Wherein, charging circuit E1 partly comprises capacitor C 1, resistance R 1, R2, R3, triode Q1, light-emitting diode D1, D2, D3; Emergency lighting circuit E2 comprises capacitor C 2, resistance R 4, R5, R6, triode Q2, diode D4, emergency light L, rechargeable battery B, and control switch K1; Before charging, earlier transfer to the contact closure state by rotation pivoted housing 8 controlling organization 40 that will throw light on, illuminating lamp 9 is lighted, promptly as shown in the figure, the control switch K1 of emergency light L is closed, and AC power provides a suitable direct voltage behind adapter 20 step-down rectifiers, offers secondary cell B charging after filter capacitor C1 filtering, light-emitting diode D1 lights behind input direct voltage, and the power supply normal power supply is described; With electric screw criticize insert 12 chargings of charging device 11 acceptance divisions after, charging current causes on the diode D3 pressure drop being arranged, thereby makes triode Q1 conducting, lights light-emitting diode D2, illustrate charges carries out; Because when electric screw is criticized and is inserted charging device 4 and charge, the control switch K1 of emergency light L is in closure state, when its charging input end has direct voltage to provide, and when on diode D4, pressure drop being arranged, cause triode Q2 to turn-off, thereby turn-off emergency light L, promptly when electric screw is criticized insertion, can automatically emergency light L be turn-offed; In case power cut-off does not then have the direct current input, does not form pressure drop on the diode D4, triode Q2 is switched on, and emergency light L lights automatically, thereby makes illuminating lamp 9 realize the function of emergency illumination of emergency light L.

With reference to shown in Figure 8, be the second kind execution mode of electric tool of the present invention as emergency light, a this control circuit E ' and a last embodiment are similar, difference is: among the control circuit E ' at the control switch K1 place of emergency light L control switch K2 in parallel, other identical member is then represented with same label, does not give unnecessary details herein; In this control circuit among the E ', because the setting of control switch K2, make electric screw criticize before inserting charging device 11, need not to make photograph system controlling organization 40 be in closure state by rotation pivoted housing 8, but come emergency light L is carried out closure by control switch K1, thereby realize same emergency lighting effect in charging process as when meeting with powering-off state, make operation become simpler, convenient simultaneously.

Those skilled in the art can also be according to above-mentioned two embodiment, it is contemplated that a main coil is set on charging device 11, the corresponding position of criticizing at electric screw is provided with another time coil, when electric screw is criticized when being in charged state, because the alternating current in the main coil, produce induced current and make in time coil, this induced current is received the two ends of battery after rectification, charge to battery, control circuit was controlled emergency light and was made it not luminous this moment, when the charge power supply of charging device is cut off the power supply, can not produce induced current in the inferior coil, thereby touch the emergency light control circuit, the LED lamp is lighted.

Certainly, those skilled in the art can set up in control circuit such as respective members such as buzzers according to concrete needs, is used for the alarm effect under the power cut-off situation, and emergency light is also lighted luminous simultaneously.Wherein the function setting of K switch 2 can realize by different mechanical structure, for example can criticize on cylindrical body 3 housings elastic conductor is set at electric screw, the moment that the cylindrical body of criticizing when electric screw 3 is inserted acceptance divisions 12, this elastic conductor carries out auto-closing with emergency light, thereby when powering-off state, this electric tool can be realized function of emergency illumination; More than said power supply AC power normally, also comprise DC power supply simultaneously.

Claims

1. electric tool, comprise tool body (1), the charging device that is connected with tool body (11), be provided with motor (5) in the described tool body, battery (6), and by the operation element (10) of described motor-driven rotation, described tool body also is provided with the emergency lighting device (4) that is connected with battery, this emergency lighting device has control circuit (E, E '), whether described control circuit switches on according to charging device, and selectively to control emergency lighting device luminous, and it is characterized in that: described control circuit comprises electrode input end, negative input, capacitor C 1, capacitor C 2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, triode Q1, triode Q2, light-emitting diode D1, light-emitting diode D2, diode D3, diode D4, emergency light L, and control switch K1; The positive pole of capacitor C 1 connects electrode input end, and the negative pole of capacitor C 1 connects negative input; One end of resistance R 1 connects electrode input end, and the other end of resistance R 1 connects the positive pole of light-emitting diode D1, and the negative pole of light-emitting diode D1 connects negative input; The emitter of triode Q1 connects electrode input end, and the collector electrode of triode Q1 connects an end of resistance R 2, and the other end of resistance R 2 connects the positive pole of light-emitting diode D2, and the negative pole of light-emitting diode D2 connects negative input; The positive pole of diode D3 connects electrode input end, and the negative pole of diode D3 connects an end of resistance R 3, and the other end of resistance R 3 connects the base stage of triode Q1; One end of resistance R 4 connects the negative pole of diode D3, the other end of resistance R 4 connects the base stage of triode Q2, resistance R 5 and capacitor C 2 are connected in parallel between the base stage and negative input of triode Q2, the collector electrode of triode Q2 connects an end of resistance R 6, the other end of resistance R 6 connects the positive pole of emergency light L, the negative pole of emergency light L connects the end of control switch K1, the other end of control switch K1 connects negative input, the emitter of triode Q2 connects the negative pole of diode D4, the negative pole of the cathode connecting diode D3 of diode D4; The negative pole of the cathode connecting diode D4 of described battery, the negative pole of described battery connects negative input.

2. electric tool according to claim 1 is characterized in that: described tool body (1) is that electric screw is criticized, the cylindrical body (3) that it comprises handle (2) and is connected in handle, and described operation element (10) is the output shaft that is connected in the cylindrical body front end.

3. electric tool according to claim 2 is characterized in that: described emergency lighting device is arranged at the handle end away from output shaft, is provided with in obtuse angle between axis of described handle (X) and the electrical axis (Y).

4. electric tool according to claim 2, it is characterized in that: described charging device (11) comprises acceptance division (12), base portion (13), and the adapter that is connected with base portion (20), described acceptance division (12) plugs in order to receiving tool main body cylindrical body (3), and described adapter (20) is connected with power supply.

5. electric tool according to claim 1 is characterized in that: described control switch K1 is used for the open and close of illumination apparatus (4) and controls.

6. electric tool according to claim 1, it is characterized in that: described control circuit (E, E ') is provided with second controlling organization (K2) in parallel with described control switch K1, when described tool body (1) is inserted in when charging on the charging device (11), described second controlling organization (K2) auto-closing, control circuit (E, E ') then is switched on.

7. electric tool according to claim 1 is characterized in that: described battery (6) is a rechargeable battery, and described battery is that motor (5) provides working power.

8. electric tool according to claim 1 is characterized in that: described lighting device (4) electrically connects with battery (6), and described battery is for to provide working power for lighting device (4).

9. electric tool according to claim 1 is characterized in that: described lighting device (4) is provided with focus control.