WO2016106984A1 - 一种电动工具中的电枢回路及电池组插座 - Google Patents

一种电动工具中的电枢回路及电池组插座 Download PDF

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Publication number
WO2016106984A1
WO2016106984A1 PCT/CN2015/075188 CN2015075188W WO2016106984A1 WO 2016106984 A1 WO2016106984 A1 WO 2016106984A1 CN 2015075188 W CN2015075188 W CN 2015075188W WO 2016106984 A1 WO2016106984 A1 WO 2016106984A1
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WO
WIPO (PCT)
Prior art keywords
contact
contact piece
swaying
bracket
head
Prior art date
Application number
PCT/CN2015/075188
Other languages
English (en)
French (fr)
Inventor
徐新生
康小荣
Original Assignee
徐新生
康小荣
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 徐新生, 康小荣 filed Critical 徐新生
Publication of WO2016106984A1 publication Critical patent/WO2016106984A1/zh
Priority to US15/494,325 priority Critical patent/US10727007B2/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/44—Contacts characterised by the manner in which co-operating contacts engage by sliding with resilient mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool

Definitions

  • the invention belongs to the field of electric tools, and relates to an armature circuit and a battery socket structure of a battery type electric tool.
  • the battery pack socket with on-off function further reduces the specific gravity of the external resistor in the armature circuit and improves the working efficiency of the power tool.
  • the solution of the present invention is:
  • One of the positive or negative poles is changed from an elastic static contact to a multi-contact having an on-off function, and the other pole in the positive or negative pole is changed from double-sided elastic static contact to double-sided turbulent contact with a circuit. Switch function.
  • An auxiliary elastic contact piece is added to the swaying contact piece of one pole of the positive pole or the negative pole, and is connected in parallel with the turbulent contact of the turbulent contact piece to enhance the stability of the turbulent contact and connect a current channel in parallel.
  • the elastic contact of one pole of the positive electrode or the negative electrode is designed to have at least 3 contacts on each side of the double face, and at least 6 contacts are elastically connected in parallel to reduce the contact resistance.
  • An armature circuit in a power tool includes a power source and a motor.
  • the two poles of the power source are respectively provided with a coupling structure connecting the output portions, and one of the coupling structures is a multi-contact steerable on/off movable contact structure.
  • the other is a double-sided multi-contact structure.
  • the movable contact structure has a switching function of a double-sided turbulent contact structure; and the double-sided multi-contact structure has an on-off function.
  • An auxiliary elastic contact piece is disposed outside the swaying portion of the double-sided sway contact structure, and is connected in parallel to the contact piece holder of the swaying contact piece to enhance the stability of the turbulent contact and the additional current path in parallel.
  • the contacts of the double-sided multi-contact structure are arranged in an isosceles triangle or a positive trapezoid.
  • the double-sided multi-contact structure is provided with N contacts on each side, and N is an integer greater than 3 and less than 7.
  • a power socket for a power tool using the above armature circuit comprising:
  • a socket housing that can be fixed in the power tool casing; a coupling portion of the armature circuit is disposed in the socket housing;
  • the input portion and the output portion are components of the armature circuit, and one end thereof has a double-sided multi-contact structure with one end of the positive pole or the negative pole of the power source; and the other end of the power supply is electrically connected with the other pole of the power source.
  • the movable contact structure of the point can be controlled to open/close; the output part is connected to the desired part by wires to form an armature circuit.
  • One end of the input portion is inserted and elastically coupled to one end of the positive pole or the negative pole of the power source; the other end of the input portion is electrically coupled to the other pole of the power source to be a two-way turbulent connection that can be controlled to be turned on and off;
  • At least two synchronous swaying contact members can be connected to the output contact member of the one pole of the power source to enable the socket to have an on/off function;
  • a head bracket assembly that can reciprocate up and down
  • a bracket spring mounted between the socket housing and the head bracket assembly to make the head bracket assembly upward Movement; the two inner heads of the plug bracket are pressed by the spring force to the outside of at least two swaying contact members, and the head bracket moves the head to the upper and lower portions of the pivoting fulcrum of the swaying contact member.
  • the swaying state can be reversed to achieve the on/off function;
  • the swinging rod is disposed at the top of the socket, one end of the swinging rod serves as a pivoting fulcrum, and the other end is placed on the convex portion of the upper end of the head bracket, and the swinging rod pivots around the supporting point to press the head bracket assembly to move downward.
  • the plug-in elastic electrical connection of the input portion comprising an elastic contact piece
  • the double-sided clip is coupled to the battery output contact piece
  • the front portion is divided into at least two elastic contact points, and at least one elastic contact point is further disposed at the upper end of the dividing portion, the three elastic contact points are arranged in an isosceles triangle shape, and the two sides have at least six elastic contact points, that is, at least Six contact resistors are connected in parallel.
  • the electrical connection between the other end of the input portion and the output contact piece of the other end of the battery pack is steerable; the electrical connection is composed of at least two swaying contact piece members and a swaying contact piece bracket having grooves on both sides
  • the swaying contact piece bracket is fixed relative to the socket housing, and the two swaying contact piece parts are mounted in the grooves on both sides of the bracket, and the portion where the bottom of the groove contacts the swaying contact piece member is used as a fulcrum.
  • Two elastic auxiliary contact pieces are respectively fixed at an outer side of the groove on both sides of the swaying contact piece bracket, and the other ends of the two auxiliary contact pieces are suspended on the inner side of the two swaying contact pieces
  • the swaying contact piece member pivots toward the battery pack output contact piece assembly, first presses the arc surface to the other end of the two auxiliary contact pieces, and then continues to pivot the battery pack output contact piece until the sway contact
  • the contacts of the component are coupled to the battery output contact piece. At this time, the current from the battery output contact piece passes through the contact at one end of the swaying contact member on both sides of the battery output contact piece, and flows to the turbulent contact.
  • the current is partially pivotally coupled to the swaying contact piece by a swaying contact piece and a fulcrum supporting the pivoting thereof, that is, a groove on both sides of the swaying contact piece holder, and flows to the swaying contact piece holder; a part of the current flowing through the arcuate end of the swaying contact piece by the two auxiliary contact pieces to a fixed coupling end fixed on both sides of the swaying contact piece bracket, that is, flowing to the swaying connection Plate carrier.
  • the two auxiliary contact strips are respectively bridged at opposite ends of the pivotal coupling of the at least two flapping contact pieces to the tilting contact piece bracket, which is a compensation and reinforcement of the electrical performance of the pivotal coupling.
  • a head bracket assembly is composed of a head bracket, a head, a head spring, and a cover plate.
  • At least two swaying contact piece members are mounted in the grooves on both sides of the swaying contact piece bracket, and the bottom of the groove is used as a fulcrum to pivot at least two swaying contact piece members on both sides.
  • at least two of the plug assemblies are under the elastic force of the plug spring, the tip end portion of which is pressed against the outer side of the at least two tilting contact piece members, the guide of the head bracket assembly
  • the groove moves up and down, and the tips of the plugs on both sides thereof are simultaneously pressed against the outside of the swaying contact piece to move up and down with the bracket.
  • a bracket spring is mounted between the raised portion of the socket base and the lower portion of the head bracket beam, and the spring force of the bracket spring drives the head bracket assembly to move upward along the guide slot.
  • a swinging rod has one end as a pivoting fulcrum and is disposed at a convex portion of the upper end of the socket cover, and the swinging rod is pivotally pivoted about its pivot point.
  • the power source is a battery pack.
  • the power tool is a battery type power tool.
  • a battery type power tool with a battery pack socket with an on-off function comprising:
  • variable resistance box that is fixed relative to the tool housing
  • the trigger push rod is held on the variable resistance box, and can perform longitudinal reciprocating motion under the external force or the spring force of the trigger spring;
  • the socket housing includes a socket base and a socket cover that are fixed relative to the tool housing;
  • the first input portion is an end of the elastic coupling clip with a plurality of arcuate contact points fixed relative to the socket housing, the other end of which is perpendicular to the outer surface of the arcuate contact point In the corresponding socket base
  • the elastic coupling clip has two elastic contact pieces.
  • the two elastic contact pieces are bent by an elastic conductive material, and the front end of each input end is divided into at least two elastic contact points, and at least one elastic contact point is formed at the upper end of the split, and the plurality of contact points are equal.
  • the waist is triangular or positively trapezoidal, and the two sides have at least six elastic contact points, and the elastic coupling clip is connected with the plug-in elastic contact of one of the battery pack positive/negative contact pieces to receive the positive and negative electrodes from the battery pack.
  • the current in the middle pole; the elastic contact on the elastic coupling clip is designed to have at least two contacts on each side of the double-sided, at least six contacts in parallel with the elastic connection, which greatly reduces the contact resistance and reduces the current during high current load. loss;
  • the first output portion is a circular hole in the plane of the other end of the elastic coupling clip, and the circular hole received by the elastic coupling clip on the other end plane is delivered to the PCB circuit board end of the control system through the wire connection and connected in series Three sets of high power at the motor end
  • the second input portion that is, the socket opening and closing function component, is composed of a plurality of swaying contact pieces, two auxiliary contact pieces and a swaying contact piece bracket, and the socket opening and closing function member is in contact with the slamming contact
  • the chip holder is fixed relative to the socket base; the plurality of cocking contact pieces are held in the grooves on one end of the one end of the swaying contact piece bracket, and the part of the bottom of the groove contacting the swaying contact piece is used as a fulcrum to make a plurality of swaying
  • the contact piece pivotally pivots about the fulcrum to form a plurality of pivotal turbulent contacts, the turbulent contact piece holder being fixed relative to the socket base.
  • the plurality of swaying contact pieces are quickly turned toward the battery pack positive/negative
  • the other contact piece in the contact piece, the contact at one end of each of the sway contact pieces is in contact with the other contact piece in the positive/negative contact piece of the battery pack, receiving current from the battery pack, and a plurality of swaying contact pieces
  • the auxiliary contact piece which is a curved surface elastic body, a plurality of swaying contact pieces and two auxiliary contact pieces.
  • the two auxiliary contact pieces are elastic conductive materials, and the auxiliary contact piece has multiple upper ends
  • the card slot is fixed on the swaying contact piece bracket, and at this time, the auxiliary contact piece forms a passage between the swaying contact piece bracket and the plurality of swaying contact pieces, so that the current received on the swaying contact piece passes through a plurality of turbulent contacts.
  • the pivoting and the auxiliary contact piece of the piece and the swaying contact piece are transmitted to the swaying contact piece bracket; when the plurality of swaying contact pieces and the battery pack negative contact piece are connected, the plurality of swaying The contact piece and the auxiliary contact piece are simultaneously turned on with the swaying contact piece holder to reduce current loss; when the pressure on the outer side of the swaying contact piece moves upwards over the swaying contact piece bracket in the direction of the reverse contact of the swaying contact piece holder thickness When the upper boundary line of one side, the other end of the plurality of swaying contact pieces sway toward the center plane of the swaying contact piece bracket parallel to the groove surface of the two sides, so that the contacts of one end of the plurality of swaying contact pieces are quickly assembled with the battery pack The other contact piece of the positive/negative contact piece is detached, and the electrical disconnection is completed;
  • the second output portion is a circular hole for swaying the other end of the contact piece holder, and the swaying contact piece holder conveys the received electric current through the wire connection at the other end of the figure to the negative of the PCB circuit board of the control system.
  • the head bracket assembly is composed of a head bracket, a plurality of heads, a plurality of head springs and a plurality of head covers, wherein the head bracket assembly is held between the socket base and the socket cover by the head bracket under the elastic force of the bracket spring
  • the head bracket has at least one guiding rib on the outer side surfaces of the two sides. Under the action of the swinging rod and the bracket spring, the guiding ribs on the outer side of the head bracket can freely reciprocate up and down along the corresponding guiding grooves on the socket base.
  • a plurality of plugs are held on the plug bracket, and under the elastic force of the plug spring, pressure is applied outwardly on the plug bracket, and at the same time, the tip end of the plug is always pressed against the two tilting contact pieces under the action of the plug spring.
  • the tilting state of the plurality of tilting contact pieces can be quickly reversed; when the head bracket assembly moves downward under the action of the pendulum rod pressure, when the head is in front of the head When the tip portion moves over the lower boundary of the side of the swaying contact piece bracket that pushes the thickness of the contact piece holder toward the contact direction, the plurality of heads rapidly flip the plurality of swaying contact pieces to the battery pack under the action of the plug spring One of the positive and negative contact pads, so as to quickly receive the current of one pole of the battery pack positive/negative; when the head support assembly is in the branch When the spring is moved upward by the spring force, when the tip end portion of the plug moves over the upper boundary line of the side of the swaying contact piece bracket in the direction of the reverse contact of the thickness of the contact piece holder, the plurality of swaying contact pieces are oriented.
  • the swaying contact piece bracket is slid parallel to the central plane direction of the groove surface of the two sides, so that the contacts of the plurality of cocking contact pieces are quickly disconnected from the connection of one pole of the positive/negative electrode of the battery pack to complete the electrical disconnection;
  • An upper pressing rod is held on the tool casing and the swinging rod, and a lower plane whose one end is connected to the inclined surface is placed on the lower end plane of the trigger push rod toward the socket base, and the curved end portion of the other end is at the top
  • the swinging rod pivots to one end of the pivot point toward the switch direction plane; when the trigger push rod moves inwardly under the action of the external force, the trigger push rod is connected to the inclined plane of the lower end plane of the socket base to press the inclined surface of one end of the upper pressing rod,
  • the upper pressing rod is rapidly moved downward, and the curved end portion of the other end of the upper pressing rod pivots around the pivoting pivot point of the swinging rod to pivot toward the socket, and the other end of the swinging rod faces the tip of the arc in the direction of the socket.
  • the bracket assembly moves in the direction of the tilting contact piece contact, but when the lower end boundary of the trigger pusher ramp crosses the end line of the inclined end surface of the upper pressing rod, the upper plane end of the upper pressing end end of the upper pressing rod is connected
  • the lower end of the trigger push rod is flat, and the position of the upper pressing rod remains unchanged; and when the trigger push rod moves outwardly under the action of the spring force, when the trigger push rod moves to the lower limit of the lower end of the trigger push rod
  • the upper pressing rod moves upwards under the action of the upward elastic force of the head supporting assembly, when the lower end boundary of the trigger pushing rod inclined surface crosses the lower end boundary line of the inclined end surface of the upper pressing rod, The upper lever is completely reset;
  • a pendulum rod one end of which is held on the two fixing ribs of the socket cover by a metal pin, with a metal pin as a pivoting pivot point, and the other end of the other end facing the socket direction of the arc-shaped tip end against the upper end of the head bracket assembly
  • the pivoting swing can be pivoted around the pivoting pivot point; when the trigger pusher moves inward by the action of the external force, the upper pressing rod moves downward, and the tip end of the curved end of the upper pressing rod faces the swinging rod toward the switch
  • the direction plane pivotally swings toward the socket direction about the pivoting swing fulcrum at one end of the pivoting pivot point, and the other end of the swing rod moves toward the tip end of the socket toward the socket toward the tip contact assembly toward the sway contact piece contact.
  • the head bracket assembly When the trigger push rod moves outwardly under the action of the spring force, when the trigger push rod moves until the lower end boundary of the trigger push rod slope crosses the end line of the inclined end surface of the upper pressing rod, the head bracket assembly has a trigger pull rod a direction-moving space, when the spring force of the head spring is greater than the pressure of the upper pressing rod, the head bracket assembly swings around the pivoting end portion of the swinging rod toward the socket direction under the elastic force of the head spring The fulcrum pivotally swings in the direction of the trigger push rod to automatically reset the swing lever. Through the action of the pendulum rod, the movement stroke of the head bracket assembly can be multiplied, so that the battery socket can achieve a fast on-off function.
  • a bracket spring installed between the boss portion of the socket base and the lower portion of the head bracket beam to move upward against the head bracket assembly, so that the plurality of tilting contact pieces quickly contact the positive/negative contact piece of the battery pack The coupling of one of the contact pieces is detached.
  • the battery type electric tool has the characteristics of low voltage and high power, and the invention can greatly reduce the internal resistance of the motor armature circuit (eliminating the contact resistance of the switch contact R3 and reducing the contact resistance of the positive electrode connection), and improving the hardness of the running characteristics of the motor. Improve The working efficiency of the tool, also due to the reduction of internal resistance, reduces the current loss of the armature circuit and also reduces the temperature rise of the appliance and the contacts. With the same working efficiency, the technology of the invention can save battery capacity and reduce battery cost.
  • FIG. 1 is a schematic view of a conventional battery-type power tool armature circuit.
  • FIG. 2 is a schematic view of an armature circuit of a battery type electric tool of the present invention.
  • Figure 3 is a schematic view of the operational characteristics of the motor.
  • FIG. 4A is a perspective view of the present invention relating to Embodiment 1 and Embodiment 2. Among them: 1-trigger push rod, 2-reverse plate, 3-forward bar, 4-variable resistance box, 5-upper bar, 6-socket assembly.
  • FIG. 4B is a perspective view showing the socket assembly of the embodiment 1 and the embodiment 2 installed in the casing. Among them: A is the casing.
  • FIG. 5 is a cross-sectional view showing the socket assembly of Embodiment 1 of the present invention. Among them: 7-head bracket assembly, 8-socket continuity function, 9-battery negative contact piece, 10-bracket spring, 11-battery pack positive contact piece, 12-elastic coupling clip, 13-socket base, 14 - Socket cover, 15-spoke, B-metal pin.
  • Figure 6 is a schematic cross-sectional view of the plug support assembly.
  • Figure 7 is a perspective view of the plug assembly.
  • Figure 8 is a perspective view of the plug bracket.
  • Figure 9 is a perspective view of the plug cap.
  • Figure 10 is a perspective view of the plug spring.
  • Figure 11 is a schematic cross-sectional view of the plug.
  • Figure 12 is a perspective view of the socket on/off function.
  • Figure 13 is a perspective view of the swaying contact piece.
  • Figure 14 is a perspective view of the auxiliary contact piece.
  • Figure 15 is a perspective view of the swaying contact piece holder.
  • Figure 16 is a perspective view of the auxiliary contact piece attached to the sway contact piece holder. Among them: t5-auxiliary contact piece, s2-throat contact piece bracket.
  • Figure 17 is a perspective view showing the relationship between the bracket spring, the head holder assembly and the socket base. Among them: t6-head bracket assembly, s3-bracket spring, r1-socket base.
  • Figure 18 is a cross-sectional view showing the relationship between the socket assembly and the socket cover under the spring force of the bracket spring: p1-head bracket assembly, s4-socket cover, t7-bracket spring, r1-socket base.
  • Figure 19 is a perspective view showing the socket opening and closing function member fixed to the socket base. Among them: s5-socket on/off function, t8-socket base.
  • Figure 20 is a perspective view of the socket base.
  • Figure 21 is a perspective view showing the elastic coupling clip fixed between the socket base and the socket cover. Among them: r3-elastic coupling clip, s6-socket cover, t9 socket base.
  • Figure 22 is a perspective view of the upper pressing rod.
  • Figure 23 is a perspective view of the swing bar.
  • Figure 24 is a perspective view of the jack spring.
  • Figure 25 is a perspective view of the socket cover.
  • Figure 26A is a perspective view of the elastic coupling clip.
  • Fig. 26B is a perspective view 2 of the elastic coupling clip.
  • Figure 27 is a perspective view showing the contact of the elastic coupling clip and the battery pack positive contact piece. Among them: t11-elastic coupling clip, s7-battery pack positive contact piece.
  • Figure 28 is a perspective view showing the battery pack positive and negative contact piece holders fixed to the battery pack.
  • Figure 29 is a perspective view of the trigger and the variable resistance box.
  • Figure 30 is a cross-sectional view of the socket of the second embodiment of the present invention; wherein: 7A-head bracket assembly, 8A-socket continuity function, 9A-battery pack negative contact piece, 10A-bracket spring, 11A-battery pack positive contact piece, 12A-elastic coupling clip, 13A-socket base, 14A-socket cover, 15A-swing bar, B1-metal pin.
  • Figure 31 is a schematic cross-sectional view of the plug support assembly.
  • Figure 32 is a perspective view of the head support assembly.
  • Figure 33 is a perspective view of the plug bracket.
  • Figure 34 is a perspective view of the plug cap.
  • Figure 35 is a perspective view of the plug spring.
  • Figure 36 is a schematic cross-sectional view of the plug.
  • Figure 37 is a perspective view of the socket on/off function.
  • Figure 38 is a perspective view of the swaying contact piece.
  • Figure 39 is a perspective view of the auxiliary contact piece.
  • Figure 40 is a perspective view of the swaying contact piece holder.
  • Figure 41 is a perspective view showing the auxiliary contact piece fixed to the sway contact piece holder. Among them: t16-auxiliary contact piece, s9-tilt contact piece bracket.
  • Figure 42 is a perspective view showing the relationship between the bracket spring, the head holder assembly and the socket base. Among them: t17-head bracket assembly, s10-bracket spring, r4-socket base.
  • Figure 43 is a cross-sectional view showing the mutual relationship between the socket assembly and the socket cover under the spring force of the bracket. Among them: p2-head bracket assembly, s11-socket cover, t18-bracket spring, r5-socket base.
  • Figure 44 is a perspective view showing the socket opening and closing function member fixed to the socket base. Among them: s12-socket on/off function, t19-socket base.
  • Figure 45 is a perspective view of the socket base.
  • Figure 46 is a plan view showing the use of a battery pack socket with an on-off function in a battery-type electric drill.
  • FIG. 4A is a schematic perspective view of an embodiment of the present invention, mainly relating to Embodiment 1 and Embodiment 2.
  • Embodiment 1 and Embodiment 2 except for the internal structure of the socket assembly, the remaining portions are identical.
  • Embodiment 1 relate to Embodiment 1; the internal structure of the socket assembly, the mutual assembly relationship between the components, and a schematic view of the individual components are shown; wherein Figures 6 to 11 show the interior of the header assembly The structure, the mutual assembly relationship between the components, and the schematic diagram of the individual components; Figure 12 to Figure 16 show the internal structure of the socket continuity function, the mutual assembly relationship between the components, and a schematic diagram of the individual components; Figure 20 shows a schematic view of the mutual assembly relationship between the head support assembly, the socket opening and closing function, the bracket spring, the socket base and the socket cover.
  • FIG. 5 is a cross-sectional view of the battery pack socket of the first embodiment of the present invention. the figure clearly shows that the battery pack positive contact piece and the elastic coupling clip are fixed elastic contact connections, the battery pack negative contact piece and the sway contact piece bracket It is connected by two movable contact pieces, and the battery assembly socket shown in the figure is in the disconnected state.
  • Figure 6 is a cross-sectional view of the headrest assembly, consisting of a 7-1 head bracket, a 7-2 head cover, a 7-3 head spring, and a 7-4 head. This figure clearly shows that the head and head springs are held by the head cover. On the head bracket, the head can move longitudinally under the action of the spring force of the head spring;
  • Figure 12 is a perspective view of the socket on/off function component, which is composed of an 8-1 slab, an 8-2 auxiliary contact piece, and an 8-3 sway contact bracket;
  • Embodiment 21 to 29 mainly relate to Embodiment 1 and Example 2; the mutual assembly relationship between the common components in Embodiment 1 and Embodiment 2 and a schematic view of a single component are shown.
  • Embodiment 2 relate mainly to Embodiment 2; the internal structure of the socket assembly, the mutual assembly relationship between the components, and a schematic view of the individual components are shown; wherein Figures 31 to 36 show the inside of the header assembly. The structure, the mutual assembly relationship between the components, and the schematic diagram of the individual components; Figure 37 to Figure 41 show the internal structure of the socket on-off function, the mutual assembly relationship between the components, and a schematic diagram of the individual components; Figure 45 shows a schematic diagram of the mutual assembly relationship between the head support assembly, the socket opening and closing function, the bracket spring, the socket base and the socket cover.
  • Figure 30 is a cross-sectional view showing a battery pack socket according to a second embodiment of the present invention
  • Figure 4A and Figure 30 are schematic structural views showing a second embodiment of the present invention, which clearly shows that the battery pack positive contact piece and the elastic coupling clip are fixed.
  • Elastic contact connection, The battery pack negative contact piece and the tilt contact piece holder are connected by a two-acting contact piece, and the battery assembly socket shown in the figure is in an open state.
  • Figure 31 is a cross-sectional view of the headrest assembly, consisting of a 7A-1 head bracket, a 7A-2 head cover, a 7A-3 head spring, and a 7A-4 head. This figure clearly shows that the head and head springs are held by the head cover. On the head bracket, the head can move longitudinally under the action of the spring force of the head spring;
  • FIG. 37 is a perspective view of the socket on/off function component, which is composed of 8A-1 ⁇ board, 8A-2 auxiliary contact piece, and 8A-3 ⁇ contact bracket;
  • FIG. 2 The schematic diagram of the armature circuit of the present invention is shown in FIG. 2, in which the battery negative switch is replaced by a versatile double-sided socket, the original switch internal resistance R3 is eliminated, the negative contact resistances are connected in parallel, and the battery positive electrode is double-sided.
  • the single-point contact is changed to double-sided, three-point contact on each side, and the six contact resistances of the pole are connected in parallel.
  • the total resistance of the armature circuit (the resistance of the motor itself is not counted)
  • R4 shows the total resistance of the tool motor armature circuit is greatly reduced, due to the operational characteristics of the power tool battery is a low voltage, high current, such as greater total R value, the motor which The softer the working characteristic, the lower the working efficiency decreases with the increase of the load.
  • the invention greatly reduces the working efficiency of the motor by greatly reducing the armature loop resistance.
  • the socket assembly includes: a 7-head bracket assembly, an 8-socket continuity function, a 10-bracket spring, a 12-elastic coupling clip, a 13-socket base, and a 14-socket cover.
  • the pin base 15 - swing rod, B - metal pin; socket open and close function is fixed on the pin base, as shown in Figure 19, the head bracket assembly is held between the pin base and the socket cover under the elastic force of the bracket spring, as shown in the figure
  • the elastic coupling clip is fixed on the socket base and the socket cover as shown in Fig. 21.
  • a specific embodiment thereof is the state shown in FIG. 5.
  • the positive contact piece is a plurality of elastic contact couplings.
  • the elastic coupling clip receives the current from the positive electrode of the battery pack and is supplied to the PCB circuit board end of the control system through the wire connection at b9 shown in Fig. 26B.
  • the input terminals (drain) of three sets of high power FETs connected in series at the motor end; the elastic coupling clips shown in Figs. 26A and 26B are fixed to the socket base shown in Fig. 20 and the socket cover shown in Fig.
  • the partial plane shown by d9 in FIG. 26A abuts on the plane shown by a5 in FIG. 20, and the both end faces shown by e9 in FIG. 26A are stuck to the two fixed ribs shown by b5 in FIG.
  • the surface shown by c9 in Fig. 26B is pressed; at this time, as shown in Fig. 5, the two contact pieces are disconnected from the negative contact piece of the battery pack. At this time, the circuit is in the off state.
  • the head bracket assembly is rapidly moved downward, when the tip end portion of the head a1 shown in Fig. 11 on the plug holder
  • the head is quickly turned over under the action of the plug spring to negatively contact the battery pack.
  • the two a2 contacts shown in Fig. 13 clamp the battery pack negative contact piece, and the two a2 touches of the sway contact piece shown in Fig. 13 are connected to the battery pack negative contact piece shown in a10 of Fig. 28.
  • the two paths are transmitted to the tilting contact piece holder, and the contact piece holder transmits the received current to the negative end of the PCB circuit board of the control system through the wire connection at a4 shown in FIG. 15 and is connected in series to the motor.
  • the output terminals (sources) of the three sets of high-power FETs when the circuit is turned on, the control system guides the motor to start working.
  • the two swaying contact pieces are tilted toward the center direction shown by b5 in FIG. 20, so that the two swaying contact pieces are quickly separated from the connection of the negative contact piece of the battery pack, and the circuit is automatically disconnected.
  • the motor stopped working.
  • the headrest assembly as shown in Figures 6 and 7, consists of a head bracket as shown in Figure 8, two head caps as shown in Figure 9, two head springs as shown in Figure 10, and two heads shown in Figure 11
  • the head spring is held between the head cover and the head.
  • One end of the inner hole t3 at one end of the head spring shown in FIG. 10 is held on the outer circumference of the t4 boss shown in FIG. 11, and the other end of the head spring shown in FIG.
  • the hole t3 is held on the outer circumference of the v1 boss shown in FIG. 9. After the two grooves t2 on the plug cover shown in FIG. 9 are loaded into the two v1 bosses shown in FIG. 8, the head cover is selected at a certain angle.
  • the head cover is held in the two s1 grooves shown in FIG. 8.
  • the head bracket assembly is held between the socket base and the socket cover by the head bracket under the elastic force of the bracket spring, as shown in FIG.
  • the guiding ribs on both sides of the plug bracket shown in a of FIG. 7 can freely reciprocate up and down along the corresponding guiding slots on the socket base shown in d5 of FIG.
  • the head is held on the head bracket, and under the elastic force of the head spring, the pressure is applied outwardly on the head bracket, and at the same time, the tip end of the head is always pressed outside the two tilting contact pieces under the action of the head spring.
  • the two swaying contact pieces are tilted toward the center direction shown by b5 in FIG. 20, so that the contacts of the two swaying contact pieces are quickly contacted with the battery pack negative contact piece.
  • the connection is detached, thereby achieving the effect of quickly breaking the current of the negative electrode of the battery pack.
  • the upper pressing rod as shown in FIG. 4 and FIG. 24, is held up and down on the tool casing and the swing rod, and the top end of the upper pressing rod a6 shown in FIG. 22 is at the swinging rod a7 shown in FIG.
  • the a11 inclined surface shown in FIG. 29 presses the inclined surface of the upper pressing rod c6 shown in FIG. 22, so that the upper pressing rod moves downward rapidly, but when the trigger shown in FIG.
  • the lower end boundary c11 of the a11 of the push rod passes over the end boundary d6 of the c6 inclined surface shown in Fig. 22, and the lower plane b11 of the trigger pusher shown in Fig.
  • the pendulum rod as shown in Fig. 5 and Fig. 23, has the end of b7 in Fig. 23 on the convex portion plane of the upper end of the plug holder, and the c7 hole shown in Fig. 23 is held by the metal pin in the socket cover shown in Fig. 25.
  • the two fixed ribs at the A2 hole can pivotally swing around the fulcrum A2 shown in Fig. 25; when the trigger push rod moves inward by the action of the external force, the upper pressing rod moves downward, the upward pressure shown in Fig. 22
  • the rod a6 end is rapidly pivoted downwardly about the fulcrum A2 shown in Fig. 25 at the swing lever a7 shown in Fig.
  • the head bracket assembly is moved downward rapidly under the action of the swing rod b7 end shown in Fig. 23.
  • the trigger push rod moves outwardly under the action of the spring force
  • the trigger push rod moves to the boundary line d11 shown in FIG. 29 and crosses the boundary line d6 shown in FIG. 22
  • the head bracket assembly has a space for upward movement, when the head spring
  • the head bracket assembly pivots upwardly around the pivot point b7 shown in FIG. 23 around the pivot point b2 shown in FIG. 25 under the elastic force of the head spring, so that the swing rod is pivoted upward.
  • Automatic reset Through the action of the swing lever, the stroke of the plug bracket can be multiplied, so that the battery pack socket can achieve a fast on-off function.
  • the bracket spring as shown in Fig. 24, is held between the head bracket assembly A1 shown in Fig. 6 and the boss base A2 of the socket shown in Fig. 20, as shown in Fig. 17, and can be moved upward against the head bracket assembly.
  • the two swaying contact pieces are quickly disengaged from the connection of the battery pack negative contact piece.
  • the socket on/off function component is composed of two swaying contact pieces, two auxiliary contact pieces and a swaying contact piece bracket, which are fixed to the socket base shown in FIG. 20 by the swaying contact piece bracket.
  • the jaw can quickly clamp or disengage the battery pack negative connecting piece, so that the battery socket is generated.
  • the socket assembly includes: 7A-head bracket assembly, 8A-socket continuity function, 10A-bracket spring, 12A-elastic coupling clip, 13A-socket base, 14A-socket cover , 15A-swing bar, B1-metal pin; the socket on-off function is fixed on the pin base, as shown in Figure 44, the head bracket assembly is held between the pin base and the socket cover under the elastic force of the bracket spring, as shown in the figure As shown in Fig. 43, the elastic coupling clip is fixed on the socket base and the socket cover, as shown in Fig. 21.
  • a specific embodiment thereof is the state shown in FIG. 30, when the battery pack is inserted into the battery pack socket, the six elastic contacts on both sides of the elastic coupling clip shown in a9 of FIG. 26A and the battery pack shown in b10 in FIG.
  • the positive contact piece is a plurality of elastic contact couplings.
  • the elastic coupling clip receives the current from the positive electrode of the battery pack and is supplied to the PCB circuit board end of the control system through the wire connection at b9 shown in Fig. 26B.
  • the input terminals (drain) of three sets of high power FETs connected in series at the motor end; the elastic coupling clips shown in Figs. 26A and 26B are fixed to the socket base shown in Fig. 45 and the socket cover shown in Fig.
  • the partial plane shown by d9 in FIG. 26A abuts on the plane shown by a17 in FIG. 45, and the both end faces shown by e9 in FIG. 26A are stuck to the two fixed ribs shown by b17 in FIG.
  • the surface shown by c9 in Fig. 26B is pressed; at this time, as shown in Fig. 30, the two contact pieces are disconnected from the negative contact piece of the battery pack. At this time, the circuit is in the off state.
  • the a11 bevel of the trigger shown in Fig. 29 presses the inclined surface of the upper pressing rod c6 shown in Fig. 22, so that the upper pressing rod moves downward rapidly, but when the a11 inclined surface of the trigger shown in Fig. 29 crosses Fig. 22
  • the c6 bevel shown after the lower plane b11 of the trigger shown in Fig. 29 is in contact with the upper plane of the upper pressing rod shown in Fig. 22, the position of the upper pressing rod remains unchanged; the upper pressing rod a6 end shown in Fig. 22 Immediately against the pendulum a7 shown in Fig. 23 and swinging downward about the fulcrum A2 shown in Fig.
  • the head brace assembly rapidly moves downward, when the head support is attached.
  • the head brace assembly When the movement of the tip end portion at the head a13 shown by 36 is over the thickness of the swaying contact piece holder toward the direction of the contact, the b16 boundary in the side of the swaying contact piece holder in FIG. 40, the head is swayed by the head spring.
  • the contact piece is quickly flipped over to the battery pack negative contact piece, and the four a14 contacts shown in Figure 38 clamp the battery pack negative contact piece, the four a14 contacts of the sway contact piece shown in Figure 38 and the a10 of Figure 28.
  • the battery pack negative contact piece shown is turned on, receiving the negative current from the battery pack; when the four flip contacts are directed to the battery During the pivoting and swaying of the negative contact piece, the a15 arc surface of the two auxiliary contact pieces shown in FIG. 39 is pressed first, and the part is a curved surface elastic body, and the four swaying contact pieces and the two auxiliary contact pieces are in elastic contact. Connected, and the three b15 portions of the auxiliary contact piece shown in Fig. 39 are fixed on the sway contact piece holder as shown in Fig.
  • the head bracket assembly When the trigger push rod moves outward under the action of the spring force, when the trigger push rod moves to the boundary line d11 shown in FIG. 29 and crosses the boundary line d6 shown in FIG. 22, the head bracket assembly has a space for upward movement, and the head bracket The bullet of the component in the head spring Under the action of force, the swinging rod b7 end shown in FIG. 23 is pivoted upward about the fulcrum A2 shown in FIG. 25, and the swinging rod a7 shown in FIG. 23 is placed against the upper pressing rod a6 shown in FIG. The upper pressing rod is moved upward and automatically reset, and the movement of the tip end portion at the head a13 shown in Fig. 36 over the d16 boundary in Fig.
  • the headrest assembly as shown in Figures 30 and 31, consists of a head bracket as shown in Figure 33, four head caps shown in Figure 34, four head springs as shown in Figure 35, and four heads shown in Figure 36.
  • the head spring is held between the head cover and the head.
  • One end of the inner hole t14 at one end of the head spring shown in FIG. 35 is held on the outer circumference of the t15 boss shown in FIG. 36, and the other end of the head spring shown in FIG.
  • the hole t14 is held on the outer circumference of the v2 boss shown in FIG. 34.
  • the head cover is held in the two s8 recesses shown in Fig. 33, and the head bracket assembly is held between the socket base and the socket cover by the head bracket under the elastic force of the bracket spring, as shown in Fig. 43, in the swing lever and the bracket spring Under the action, the guiding ribs on both sides of the plug bracket shown in a12 of FIG. 32 can freely reciprocate up and down along the corresponding guiding groove of the socket base shown in d17 of FIG. 45, as shown in FIG.
  • the plug is held on the head bracket, and under the elastic force of the head spring, pressure is applied to the rocking contact piece on the head bracket, and at the same time, the tip end is always pressed by the head spring under the action of the head spring.
  • the tip portion moves over the b16 boundary in FIG. 40 on the side of the swaying contact plate bracket with the thickness of the swaying contact plate holder facing the contact direction, the plug rapidly flips the two swaying contact pieces toward the battery under the action of the plug spring.
  • the contact piece is negatively so as to quickly receive the current of the negative electrode of the battery pack; when the head assembly moves upward, when the tip end portion of the head a13 shown in FIG. 36 moves over the direction of the reverse contact of the thickness of the contact piece holder
  • the four swaying contact pieces are swung in the center direction shown by b17 in FIG. 45, so that the contacts of the four swaying contact pieces are quickly in contact with the battery pack. From the connection, so as to achieve quick disconnect the current from the battery pack negative.
  • the upper pressing rod as shown in FIG. 4 and FIG. 24, is held up and down on the tool casing and the swing rod, and the top end of the upper pressing rod a6 shown in FIG. 22 is at the swinging rod a7 shown in FIG.
  • the a11 inclined surface shown in FIG. 29 presses the inclined surface of the upper pressing rod c6 shown in FIG. 22, so that the upper pressing rod moves downward rapidly, but when the trigger shown in FIG.
  • the lower end boundary c11 of the a11 of the push rod passes over the end boundary d6 of the c6 inclined surface shown in Fig. 22, and the lower plane b11 of the trigger pusher shown in Fig.
  • the pendulum rod as shown in Fig. 30 and Fig. 23, has the end of b7 in Fig. 23 on the convex portion plane of the upper end of the plug holder, and the c7 hole shown in Fig. 23 is held by the metal pin in the socket cover shown in Fig. 25.
  • the two fixed ribs at the A2 hole can be wrapped around Figure 25.
  • the pivot point A2 is pivotally swung; when the trigger push rod moves inward by the action of the external force, the upper pressing rod moves downward, and the upper pressing rod a6 end shown in FIG. 22 rapidly presses the swing rod a7 shown in FIG. At the pivot point A2 shown in Fig.
  • the bracket spring as shown in Fig. 24, is held between the A3 boss shown in Fig. 31 and the socket base A4 shown in Fig. 45, as shown in Fig. 42, and can be moved upward against the head bracket assembly, so that The two swaying contact pieces are quickly disengaged from the connection of the battery pack negative contact piece.
  • the socket on/off function component is composed of two swaying contact pieces, two auxiliary contact pieces and a swaying contact piece bracket, which are fixed to the socket base shown in FIG. 45 by the swaying contact piece bracket.
  • the jaw when the outer side of the two jaws is under the pressure of the head spring, when the head moves up and down with the head bracket, the jaw can quickly clamp or disengage the battery pack negative connection piece, so that the battery socket is opened. / off function.
  • the invention aims to further reduce the specific gravity of the external resistance in the armature circuit, improve the running hard characteristics of the motor, shorten the working cycle time of the tool, improve the working efficiency, and at the same time save the amount of the battery.
  • the technical route of the present invention is to break the structure of the original tool armature circuit and eliminate the contacts of the original switch.
  • the battery of the original elastic static contact is connected to the two connection output portions, one of which is changed to a multi-contact steerable open/close movable contact.
  • the connection of the other output part is still a flexible double-sided static contact, except that the distribution of the contacts on the plane is an isosceles triangle or a positive trapezoidal arrangement, that is, at least three points on both sides, a total of six contact points It can also be extended to five points on both sides, a total of ten touch points, and so on.
  • the invention can greatly improve the work efficiency or save the working power and improve the hardness of the operating characteristics of the tool motor.
  • the structure of the present invention can replace the on/off function of the switch while changing the multi-contact contact of the battery pack socket on both sides, thereby greatly reducing the total resistance in the armature circuit of the tool motor.

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Abstract

一种电动工具中的电枢回路以及采用该电枢回路的电动工具的电源插座，包括电源和马达，电源的两极分别设有连接输出部的联接结构，该联接结构中的一个为多触点的可操控通/断的动触点结构，另一个为双面多触点结构。该电枢回路可以大大减少马达电枢回路的内阻，提升马达运行特性的硬度，提高工具的工作效率；同时也由于内阻的减少，降低了电枢回路的电流损耗，也降低了电器及触点的温升。在同等工作效率的情况下，采用该电枢回路可节省电池容量，降低电池成本。

Description

一种电动工具中的电枢回路及电池组插座 技术领域
本发明属于电动工具领域，涉及电池式电动工具的电枢回路、电池组插座结构。
背景技术
在传统的电池式电动工具电枢回路中，如图1所示，为传统的电池式电动工具电枢回路的示意图，图中R1，R2为马达电枢两端大功率晶体管内阻，R1＝R2，R1+R2＝2R1，R3为开关的接触电阻，R4，R5为电池正负极插座的接触电阻，R4＝R5，R4+R5＝2R4，则电枢回路的总电阻(马达本身的电阻不计)R总＝R1+R2+R3+R4+R5＝2R1+R3+2R4，可见，由于都是串联着开关触点、电池插头座触点等内阻，故总内阻大，电流损耗过大，导致工具的效率较低。
自电池式电动工具问世以来，其电机始终串联着开关触点和连接电池包的弹性联接触点。随着近年来工具电动机的技术发展和作为工具动力源的锂电池技术发展，电池式电动工具的功率也在发展。由于电池式电动工具的低电压大电流的工作特征，致使工具电动机电枢回路中外接部分的接触电阻成为工具功率扩展的障碍。其特征表现为随着电动机负载的增大(电流随之增大)转速随之明显下降，也即工作效率下降。在电动工具的一个工作周期内，例如钻一块木板的孔，随着转速的下降，其工作周期的时间也随之加长，对电池能量来说其耗电也增多，电池使用效率下降。同时，同时各触点部位温升加大，带来不安全因素。
为此，该行业中有上海拜骋电器有限公司的《开关器件》发明专利，有效的运用多触点技术，攻克了垄断世界几十年的大功率开关技术的德国“马夸特Marquardt”公司的技术难关。该技术的核心就是降低开关内阻，但无法消除内阻。同时，在国际上顶端的电动工具品牌，如美国的“Milwaukee”和“DeWalt”、德国的“Bosch”、日本的“MaKita”等等，也2012年开始在其产品的电池组连接上，由单片弹性连接发展成双面弹性联接，并在接触端分割成两端面，形成双面两点，共四个接触点，即四个接触电阻并联。其“Milwaukee”和“DeWalt”两大品牌，分属于美国的两大公司，占据着全球电池式电动工具的高端市场。
即便如此，上述现有技术仍然没有改变电枢回路串联开关触点和电池组夹片弹性静触点的传统结构。电池式电动工具的运行特性的硬度、工作效率及电池的能效仍有待提升。
发明内容
本发明的目的在于提供一种可用于电池式电动工具中的电枢回路以及包含该电枢回路的 带通断功能的电池组插座，进一步降低电枢回路中外接电阻的比重、提高电动工具的工作效率。
为达到上述目的，本发明的解决方案是：
1、将传统的开关触点取消，消除了原工具电枢回路中的开关触点内阻；
2、将正极或负极中的一极采用弹性静触点改为具有通断功能的多触点，把正极或负极中的另一极采用双面弹性静接触改为双面跷动接触具有电路的开关功能。
3、在正极或负极中的一极的跷动接触片跷动处外加一个辅助的弹性接触片，并联于跷动接触片的跷动接触，以增强跷动接触的稳定性及并联一个电流通道。
4、将正极或负极中的一极的弹性触点设计为双面每面至少3个触点，至少共6个触点并联的弹性连接，降低其接触电阻。
一种电动工具中的电枢回路，包括电源、马达，电源的两极分别设有连接输出部的联接结构，所述联接结构中的一个为多触点的可操控通/断的动触点结构，另一个为双面多触点结构。
进一步，所述动触点结构为双面跷动接触结构具有电路的开关功能；所述双面多触点结构具有通断功能。
所述双面跷动接触结构的跷动处外设置辅助的弹性接触片，并联于跷动接触片跷动的接触片支架，以增强跷动接触的稳定性及并联额外的电流通道。
所述双面多触点结构的触点呈等腰三角形或正梯形排列。
所述双面多触点结构的每个面上设有N个触点，N为大于3小于7的整数。
一种采用上述电枢回路的电动工具的电源插座，包括：
插座壳体，其可固定于电动工具机壳内；电枢回路的联接部分设置于插座壳体中；
输入部、输出部，其相对于所述的插座壳体固定；
所述的输入部、输出部为电枢回路的组成部分，其一端与电源的正极或负极的一端采用双面多触点结构；其另一端与电源的另一极的电联接一个为多触点的可操控通/断的动触点结构；输出部采用电线连接至所需部位形成电枢回路。
所述的输入部其一端与电源的正极或负极的一端采用插入式弹性联接；其另一端与电源的另一极的电联接为可操控通断的双面跷动联接；
至少有两个同步的跷动接触部件，可跷动联接电源一极的输出接触部件，使插座具有通断功能；
还包括：
可以上下往复运动的顶头支架组件；
支架弹簧，安装于所述的插座壳体与顶头支架组件之间，使所述的顶头支架组件作向上 运动；所述的顶头支架两内侧的顶头在弹簧弹力的作用下，施压力于至少两个跷动接触部件的外侧，所述的顶头支架使顶头运动于跷动接触部件枢转支点上下部，使跷动状态可翻转，以实现通断功能；
摆杆，其设于插座顶部，摆杆的一端作为枢转的支点，另一端顶在顶头支架上端的凸起部，摆杆可绕支点枢转，压迫顶头支架组件向下运动。
所述输入部的插入式弹性电联接，其中包含弹性接触片，是由一种导电的弹性材料折弯而成的双面夹片，所述的双面夹片其联接电池组输出接触片的前部被分割成至少两个弹性接触点，并在分割部上端又有至少一个弹性接触点，三个弹性接触点呈等腰三角形排列，双面共至少有六个弹性接触点，即至少有六个接触电阻并联。
其输入部另一端与电池组另一端输出接触片的电联接是可操控的；所述的电联接是由至少两个跷动接触片部件和一个两侧有凹槽的跷动接触片支架组成，其跷动接触片支架相对于插座壳体固定，两个跷动接触片部件安装于所述支架两侧的凹槽内，并以凹槽底部与跷动接触片部件接触之部位为支点，使所述跷动接触片部件绕支点枢转跷动，当外力作用于跷动接触片部件并移至所述的支点朝向跷动接触片部件触点一侧时，所述的跷动接触片部件快速跷向电池组输出接触片，使其接触点联接所述的电池组输出接触片，完成电联接；当外力移至所述支点背向跷动接触片部件触点一侧时，所述的跷动接触片部件快速跷向相反方向，使所述的跷动接触片触点快速与电池组输出接触片分离，完成电断开。
两个弹性的辅助接触片其一端分别固定在跷动接触片支架两侧凹槽的外侧部，所述的两个辅助接触片的另一端呈弧面悬空置于两个跷动接触片的内侧；当跷动接触片部件向电池组输出接触片组件枢转时，首先压到所述的两个辅助接触片另一端的弧面部，然后，继续枢转向电池组输出接触片，直至跷动接触部件的触点与电池组输出接触片实现联接，此时，来自电池组输出接触片的电流通过所述的位于电池组输出接触片两侧面的跷动接触部件一端的触点，流向跷动接触片组件，该电流一部分通过跷动接触片与支撑其枢转的支点即跷动接触片支架两侧的凹槽与跷动接触片枢动联接，流向所述的跷动接触片支架；同时另一部分电流，通过所述两个辅助接触片被跷动接触片压靠之弧面端流向固定在所述跷动接触片支架两侧的固定联接端，即流向所述的跷动接触片支架。两个辅助接触片分别跨接在所述至少两个跷动接触片与跷动接触片支架枢转联接的两端，是对枢转联接的电性能的一种补偿和加强。
包括一个呈
Figure PCTCN2015075188-appb-000001
形的顶头支架，其两侧的外侧部各有一条筋，相应地，在所述的带有通断功能的电池组插座的插座底座的相对位置的两侧各设有一条凹槽，使所述的顶头支架可在槽的导向下作上下运动。所述的顶头支架其两边各有一通孔，通孔内装有顶头和顶头弹簧，两圆孔靠支架外侧装有盖板将圆孔外端封闭。顶头弹簧一端压在盖板上，另一端顶在顶头内孔底部圆形凹槽内，在顶头弹簧的弹力作用下，顶头向尖端部方向运动。由顶头支架、顶头、 顶头弹簧、盖板组成一个顶头支架组件。
由至少两个跷动接触片部件安装在所述的跷动接触片支架两侧凹槽内，并以此凹槽底部为支点，可使两侧的至少两个跷动接触片部件枢转。相应地，所述顶头支架组件中的至少两个顶头在顶头弹簧的弹力挤压下，其尖端部分压靠在所述的至少两个跷动接触片部件的外侧，顶头支架组件所述的导向凹槽上下运动，其两侧的顶头其尖端同时压靠在所述的跷动接触片部件外侧随支架上下运动。当所述的至少两个顶头其尖端越过所述的至少两个跷动接触片部件的枢转支点时，所述的跷动接触片部件的跷动状态就会翻转，实现通/断功能。
一个支架弹簧被安装在所述的插座底座的凸起部与顶头支架横梁下部之间，所述的支架弹簧的弹力驱使所述的顶头支架组件沿所述的导向槽作向上运动。
一个摆杆，其一端作为枢转支点并被设于所述的插座盖上端的凸起部，所述的摆杆可绕其支点枢转摆动。当压迫所述的摆杆另一端枢转向下运动，并压迫所述的顶头支架组件沿导向槽向下运动，当压迫所述的摆杆向下枢转运动的力小于所述的支架弹簧的弹力时，支架弹簧推动顶头支架组件上升，并使所述的摆杆一端枢转向上。
所述电源为电池包。
所述电动工具为电池式电动工具。
或者，也可以是：
一种电池式电动工具带通断功能的电池组插座，包括：
工具机壳；
变阻盒，其相对所述的工具机壳固定；
扳机推杆其保持在变阻盒上，可在外力或扳机弹簧的弹力作用下进行纵向往复运动；
插座壳体包括插座底座和插座盖，其相对所述的工具机壳固定；
第一输入部，为弹性联接夹片带有多个弧面接触点的一端，其相对于所述的插座壳体固定，其垂直的另一端朝向弧面接触点的平面靠外面的部分紧靠在相对应的插座底座
Figure PCTCN2015075188-appb-000002
形平面上，平面的两端卡在插座相对应的两固定筋之间，插座盖上相对应的两根凸筋紧压平面的外侧，所述的弹性联接夹片有两个弹性接触片，此两弹性接触片是由一种弹性导电材料折弯而成，每片其输入端前端分割成至少两个弹性接触点，并在分割上端又有至少一弹性接触点，多个接触点呈等腰三角形排列或正梯形排列，双面共有至少六个弹性接触点，通过弹性联接夹片与电池包正/负接触片中的一个接触片的插入式弹性接触连接，接收来自电池包正极和负极中一极的电流；弹性联接夹片上弹性触点设计为至少双面每面三触点，至少共六个触点并联的弹性连接，大幅降低其接触电阻，在大电流负载时将会减少电流损耗；
第一输出部，为弹性联接夹片另一端平面上的圆孔,其弹性联接夹片所接收的电流在另一端平面上的圆孔通过电线连接输送给控制系统的PCB线路板端和串联在马达端的三组大功率 场效应晶体管的输入端(漏极)；
第二输入部，即所述的插座通断功能部件，由多个跷动接触片、两个辅助接触片和一个跷动接触片支架组成，其所述的插座通断功能部件通过跷动接触片支架相对所述的插座底座固定；多个跷动接触片保持在跷动接触片支架一端两边凹槽内，并以凹槽底部与跷动接触片接触之部位为支点，使多个跷动接触片绕支点枢转跷动,形成多个枢转跷动接触，其跷动接触片支架相对所述的插座底座固定。当跷动接触片外侧面的压力向下移动越过跷动接触片支架厚度朝向触点方向的跷动接触片支架一侧的下界线时，多个跷动接触片迅速跷向电池包正/负接触片中的另一个接触片，每个跷动接触片一端的触点与电池包正/负接触片中的另一个接触片相接触,接收来自电池包的电流，当多个跷动接触片向电池包正/负接触片中的另一个接触片跷动过程中，会先压向辅助接触片下端弧面上，该部分为弧面弹性体，多个跷动接触片和两辅助接触片为弹性接触连接，两辅助接触片为弹性导电材料，其辅助接触片上端多个
Figure PCTCN2015075188-appb-000003
卡槽固定在跷动接触片支架上，此时辅助接触片在跷动接触片支架与多个跷动接触片之间形成一个通路，如此，跷动接触片上接收的电流通过多个跷动接触片与跷动接触片支架的枢转跷动处和辅助接触片两个途径传到跷动接触片支架上；当多个跷动接触片和电池包负接触片接通后，多个跷动接触片和辅助接触片与跷动接触片支架同时导通，降低了电流损耗；当跷动接触片外侧面的压力向上移动越过跷动接触片支架厚度反向触点方向的跷动接触片支架一侧的上界线时，多个跷动接触片的另一端向跷动接触片支架平行于两边凹槽地面的中心平面方向跷动，使多个跷动接触片一端的触点迅速与电池包正/负接触片的另一个接触片脱离，完成电断开；
第二输出部，为跷动接触片支架的另一端的圆孔，跷动接触片支架将所接收的电流在图另一端的圆孔处通过的电线连接输送给控制系统的PCB线路板的负端和串接在马达另一端的三组大功率场效应晶体管的输出端(源极)；
顶头支架组件，由一个顶头支架、多个顶头、多个顶头弹簧和多个顶头盖组成，其所述的顶头支架组件在支架弹簧的弹力作用下通过顶头支架保持在插座底座和插座盖之间；顶头支架，其两侧的外侧面上各有至少一条导向筋，在摆杆和支架弹簧的作用下，顶头支架外侧的导向筋可沿插座底座上相对应的导向槽自由上下往复运动。多个顶头被保持在顶头支架上，在顶头弹簧的弹力作用下，在顶头支架上向外施加压力，同时，顶头在顶头弹簧的作用下，顶头的尖端部始终压在两个跷动接触片的外侧面上，在顶头支架做上下运动时，可快速翻转多个个跷动接触片的跷动状态；当顶头支架组件在所述的摆杆压力的作用下往下运动时，当顶头前面尖端部分的移动越过跷动接触片支架厚度朝向触点方向的跷动接触片支架一侧的下界线时，多个顶头在顶头弹簧的作用下将多个跷动接触片迅速翻转跷向电池包正负接触片中的一个接触片，从而达到快速接收电池包正/负极中一极的电流；当顶头支架组件在所述的支 架弹簧弹力作用下往上运动时，当顶头前面的尖端部分的移动越过跷动接触片支架厚度反向触点方向的跷动接触片支架一侧的上界线时，多个跷动接触片向跷动接触片支架平行于两边凹槽地面的中心平面方向跷动，使多个跷动接触片的触点迅速与电池包正/负极中一极的连接脱离，完成电断开；
上压杆，其被保持在所述的工具机壳和摆杆上，其一端与斜面相连的下平面顶在扳机推杆朝向插座底座的下端平面上，其另一端的弧面尖端部顶在摆杆朝开关方向平面靠枢转摆动支点的一端；当扳机推杆在外力的作用下向内运动时，扳机推杆朝向插座底座的下端平面相连斜面压迫所述的上压杆一端的斜面，使上压杆迅速向下运动，上压杆另一端的弧面尖端部顶着摆杆绕一端枢转摆动支点向插座方向枢转摆动，摆杆另一端朝向插座方向弧面尖端部顶着顶头支架组件向跷动接触片触点方向运动，但当所述扳机推杆斜面下端界线越过所述上压杆一端斜面上端界线时，其所述上压杆一端一端斜面相连的上平面顶在所述扳机推杆下端平上，其上压杆位置保持不变；而当扳机推杆在弹簧弹力的作用向外运动时，当扳机推杆运动到当所述扳机推杆斜面下端界线越过所述上压杆一端斜面上端界线时，在顶头支架组件向上弹力的作用下，其上压杆往上运动，当所述扳机推杆斜面下端界线越过所述上压杆一端斜面下端界线时，上压杆完全复位；
摆杆，其一端通过金属销被保持在所述的插座盖两固定筋上，以金属销作为枢转摆动支点，其另一端朝向插座方向弧面尖端部顶着顶头支架组件上端凸起部平面上，可围绕所述的枢转摆动支点进行枢转摆动；当扳机推杆在外力的作用向内运动时，上压杆往下运动，上压杆一端弧面尖端部顶着摆杆朝开关方向平面靠枢转摆动支点的一端处绕枢转摆动支点向插座方向枢转摆动，摆杆另一端朝向插座方向弧面尖端部顶着顶头支架组件向跷动接触片触点方向运动。当扳机推杆在弹簧弹力的作用向外运动时，当扳机推杆运动到当所述扳机推杆斜面下端界线越过所述上压杆一端斜面上端界线时，其顶头支架组件有往往扳机推杆方向运动的空间，当顶头弹簧的弹力大于上压杆的压力时，顶头支架组件在顶头弹簧的弹力作用下，顶着所述的摆杆朝向插座方向弧面尖端部绕所述的枢转摆动支点向扳机推杆方向枢转摆动，使所述的摆杆自动复位。通过摆杆的作用，可成倍增大顶头支架组件的运动行程，从而使电池组插座达到快速的通断功能。
支架弹簧，其被安装在所述的插座底座的凸起部与顶头支架横梁下部之间，可顶着顶头支架组件往上运动，使多个跷动接触片迅速与电池包正/负接触片中的一个接触片的联接脱离。
由于采用上述方案，本发明的有益效果包括：
电池式电动工具具有低电压大功率的特性，本发明可以大大减少马达电枢回路的内阻(消除了开关触点接触电阻R3和降低正极连接的接触电阻)，提升了马达运行特性的硬度，提高 工具的工作效率，也由于内阻的减少，降低了电枢回路的电流损耗，也降低了电器及触点的温升。在同等工作效率的情况下，采用本发明技术可节省电池容量，降低电池成本。
附图说明
图1是传统的电池式电动工具电枢回路示意图。
图2是本发明的电池式电动工具电枢回路示意图。
图3是马达的工作特性示意图。
图4A是本发明涉及实施例1和实施例2的立体示意图。其中：1-扳机推杆，2-换向板，3-换向杆，4-变阻盒，5-上压杆，6-插座组件。
图4B是本发明涉及实施例1和实施例2插座组件装在机壳中的立体示意图。其中：A为机壳。
图5是本发明实施例1的插座组件的剖面示意图。其中：7-顶头支架组件，8-插座通断功能部件，9-电池包负接触片，10-支架弹簧，11-电池包正接触片，12-弹性联接夹片，13-插座底座，14-插座盖，15-摆杆，B-金属销。
图6是顶头支架组件的剖面示意图。
图7是顶头支架组件的立体示意图。
图8是顶头支架立体示意图。
图9是顶头盖的立体示意图。
图10是顶头弹簧的立体示意图。
图11是顶头的剖面示意图。
图12是插座通断功能部件立体示意图。
图13是跷动接触片的立体示意图。
图14是辅助接触片的立体示意图。
图15是跷动接触片支架的立体示意图。
图16是辅助接触片固定在跷动接触片支架上的立体示意图。其中：t5-辅助接触片，s2-跷动接触片支架。
图17是支架弹簧、顶头支架组件和插座底座之间的相互关系立体示意图。其中：t6-顶头支架组件，s3-支架弹簧，r1-插座底座。
图18是顶头支架组件在支架弹簧弹力作用下保持在插座底座和插座盖之间相互关系剖面示意图其中：p1-顶头支架组件，s4-插座盖，t7-支架弹簧，r1-插座底座。
图19是插座通断功能部件固定在插座底座上的立体示意图。其中：s5-插座通断功能部件，t8-插座底座。
图20是插座底座的立体示意图。
图21是弹性联接夹片固定在插座底座和插座盖间的立体示意图。其中：r3-弹性联接夹片，s6-插座盖，t9插座底座。
图22是上压杆的立体示意图。
图23是摆杆的立体示意图。
图24是顶头架弹簧的立体示意图。
图25是插座盖的立体示意图。
图26A是弹性联接夹片的立体示意图一。
图26B是弹性联接夹片的立体示意图二。
图27是弹性联接夹片和电池包正接触片接触的立体示意图。其中：t11-弹性联接夹片，s7-电池包正接触片。
图28为电池包正、负接触片支架固定在电池包的立体示意图。
图29是扳机和变阻盒的立体示意图。
图30是本发明实施2的插座的剖面示意图；其中：7A-顶头支架组件，8A-插座通断功能部件，9A-电池包负接触片，10A-支架弹簧，11A-电池包正接触片，12A-弹性联接夹片，13A-插座底座，14A-插座盖，15A-摆杆,B1-金属销。
图31是顶头支架组件的剖面示意图。
图32是顶头支架组件的立体示意图。
图33是顶头支架立体示意图。
图34是顶头盖的立体示意图。
图35是顶头弹簧的立体示意图。
图36是顶头的剖面示意图。
图37是插座通断功能部件立体示意图。
图38是跷动接触片的立体示意图。
图39是辅助接触片的立体示意图。
图40是跷动接触片支架的立体示意图。
图41是辅助接触片固定在跷动接触片支架上的立体示意图。其中：t16-辅助接触片，s9-跷动接触片支架。
图42是支架弹簧、顶头支架组件和插座底座之间的相互关系立体示意图。其中：t17-顶头支架组件，s10-支架弹簧，r4-插座底座。
图43是顶头支架组件在支架弹簧弹力作用下保持在插座底座和插座盖之间相互关系剖面示意图。其中：p2-顶头支架组件，s11-插座盖，t18-支架弹簧，r5-插座底座。
图44是插座通断功能部件固定在插座底座上的立体示意图。其中：s12-插座通断功能部件，t19-插座底座。
图45是插座底座的立体示意图。
图46是带通断功能的电池组插座使用在电池式电钻中的平面示意图。
具体实施方式
以下结合附图所示实施例对本发明作进一步的说明。
需要针对附图补充说明的是：
图4A是本发明实施方案的立体示意图，主要涉及实施例1和实施例2。实施例1和实施例2中，除插座组件的内部结构不同，其余部分完全相同。
图5-图20主要涉及实施例1；所示的是插座组件的内部结构、零部件之间的相互装配关系以及单个零部件示意图；其中图6至图11所示的是顶头支架组件的内部结构、零部件之间的相互装配关系以及单个零部件示意图；图12至图16所示的是插座通断功能部件的内部结构、零部件之间的相互装配关系以及单个零部件示意图；图17至图20所示的是顶头支架组件、插座通断功能部件、支架弹簧、插座底座和插座盖等零部件的相互装配关系示意图。
图5是本发明实施例1的电池组插座的剖面示意图；附图清楚地显示其电池包正接触片与弹性联接夹片是固定的弹性接触连接，电池包负接触片与跷动接触片支架是通过两跷动接触片跷动接触连接，图中所示电池组件插座处于断开状态。
图6是顶头支架组件的剖面示意图，由7-1顶头支架、7-2顶头盖、7-3顶头弹簧和7-4顶头组成，该图清楚的显示，顶头和顶头弹簧通过顶头盖保持在顶头支架上，在顶头弹簧弹力的作用下顶头可纵向运动；
图12是插座通断功能部件立体示意图，由8-1跷板、8-2辅助接触片、8-3跷动接触支架组成；
图21-图29主要涉及实施例1和例2；所示的是实施例1和实施例2中通用零部件之间的相互装配关系以及单个零部件示意图。
图30-图45主要涉及实施例2；所示的是插座组件的内部结构、零部件之间的相互装配关系以及单个零部件示意图；其中图31至图36所示的是顶头支架组件的内部结构、零部件之间的相互装配关系以及单个零部件示意图；图37至图41所示的是插座通断功能部件的内部结构、零部件之间的相互装配关系以及单个零部件示意图；图42至图45所示的是顶头支架组件、插座通断功能部件、支架弹簧、插座底座和插座盖等零部件的相互装配关系示意图。
图30是本发明实施例2的电池组插座的剖面示意图；图4A和图30是本发明实施例2的结构示意图，该图清楚的显示其电池包正接触片与弹性联接夹片是固定的弹性接触连接， 电池包负接触片与跷动接触片支架是通过两跷动接触片跷动接触连接，图中所示电池组件插座处于断开状态。
图31是顶头支架组件的剖面示意图，由7A-1顶头支架、7A-2顶头盖、7A-3顶头弹簧和7A-4顶头组成，该图清楚的显示，顶头和顶头弹簧通过顶头盖保持在顶头支架上，在顶头弹簧弹力的作用下顶头可纵向运动；
图37是插座通断功能部件立体示意图，由8A-1跷板、8A-2辅助接触片、8A-3跷动接触支架组成；
本发明的电枢回路示意图如图2所示，在电池负极开关被可操控通断的双面插座替代，原开关内阻R3被消除，负极两个接触电阻被并联，同时电池正极从双面单点接触改为双面，每面三点接触，该极的六个接触电阻并联，此时电枢回路的总电阻(马达本身的电阻不计)R总＝R1+R2+R4+1/3R5＝2R1+(1+1/3)R4，由此可见工具马达电枢回路的总电阻被大大缩减，由于电池式电动工具的工作特征是低电压、大电流，如R总数值越大，其马达的工作特性越软，工作效率随负载的增加而急速下降，如图3所示，本发明由于大幅减少了电枢回路电阻，从而大幅提升了马达的工作效率。
实施例1
图4A至图29显示了本发明的第一实施案例。如图5所示，根据该实施例的插座组件包括：7-顶头支架组件，8-插座通断功能部件，10-支架弹簧，12-弹性联接夹片，13-插座底座，14-插座盖，15-摆杆，B-金属销；插座通断功能部件固定在插脚底座上，如图19所示，顶头支架组件在支架弹簧的弹力作用下保持在插脚底座和插座盖之间，如图18所示，弹性联接夹片固定在插座底座和插座盖上，如图图21所示。
其具体的实施方式是在图5所示的状态，当电池包插入电池组插座时，图26A中a9所示弹性联接夹片两边的六个弹性触点和图28中b10所示的电池包正接触片为多个弹性接触联接，如图27所示，弹性联接夹片接收来自电池包正极的电流，并在图26B所示的b9处通过电线连接输送给控制系统的PCB线路板端和串联在马达端的三组大功率场效应晶体管的输入端(漏极)；其图26A和图26B所示的弹性联接夹片固定在图20所示的插座底座和图25所示的插座盖上，如图21所示，其图26A中d9所示的部分平面紧靠在图20中a5所示的平面上，图26A中e9所示的两端面卡在图20中b5所示两固定筋之间，25所示的插座盖的b8处紧压在图26B中c9所示的面上；而此时，如图5所示，两跷动接触片与电池包负接触片是断开的，此时电路处于断开状态。
当扳机推杆向内运动时，图29所示扳机的a11斜面压迫图22所示的上压杆c6斜面，使上压杆迅速向下运动，但当图29所示扳机的a11斜面越过图22所示的c6斜面时，其图29 所示扳机的下平面b11和图22所示上压杆的上平面相接触后，其上压杆位置保持不变；图22所示的上压杆a6端迅速顶着图23所示的摆杆a7处并绕图25中所示支点A2向下摆动，在图23所示摆杆b7端的作用下，顶头支架组件迅速往下运动，当顶头支架上图11所示的顶头a1处尖端部的移动越过跷动接触片支架厚度朝向触点方向的跷动接触片支架一侧图15中的b4界线时，顶头在顶头弹簧的作用下将两跷动接触片迅速翻转跷向电池包负接触片，两个图13中所示a2触点夹紧电池包负接触片，两个图13中所示跷动接触片的a2点触与图28中a10所示的电池包负接触片接通，接收来自电池包的负极电流；当两跷动接触片向电池包负接触片枢转跷动过程中，会先压向图14所示辅助接触片的a3弧面部，该部分为弧面弹性体，两个跷动接触片和两辅助接触片为弹性接触连接，而两个图14中所示的辅助接触片的两端b3部固定在跷动接触片支架上，如图16所示，如此，跷动接触片上接收的电流通过跷动接触片与跷动接触片支架的跷动处和辅助接触片两个途径传到跷动接触片支架上，跷动接触片支架将所接收的电流在图15所示的a4处通过电线连接输送给控制系统的PCB线路板的负端和串接在马达另一端的三组大功率场效应晶体管的输出端(源极)，此时电路接通，控制系统引导马达启动工作。
当扳机推杆在弹簧弹力的作用向外运动时，在扳机推杆运动到图29所示界线c11越过图22所示的界线d6时，其顶头支架组件有往上运动的空间，顶头支架组件在顶头弹簧的弹力作用下，顶着图23所示的摆杆b7端绕图25中所示支点A2向上枢转摆动，图23所示的摆杆a7处顶着图22所示的上压杆a6处，使上压杆向上运动并自动复位，当图11所示的顶头a1处尖端部分的移动越过跷动接触片支架厚度反向触点方向的跷动接触片支架一侧的图15中的d4界线时，两个跷动接触片向图20中b5所示的中心方向跷动，使两个跷动接触片迅速与电池包负接触片的连接脱离，此时电路自动断开，马达停止工作。
顶头支架组件，如图6和图7所示，由一个图8所示的顶头支架、两个图9所示顶头盖、两个图10所示的顶头弹簧和两个图11所示的顶头组成，顶头弹簧保持在顶头盖和顶头之间，图10所示顶头弹簧一端的内孔t3一端保持在图11所示的t4凸台外圆上，其图10所示顶头弹簧另一端的内孔t3保持在图9所示的v1凸台外圆上，图9所示的顶头盖上两凹槽t2装入图8所示的两v1凸台后，将顶头盖选择一定的角度后，顶头盖保持在图8所示的两s1凹槽中，顶头支架组件在支架弹簧的弹力作用下通过顶头支架保持在所述的插座底座和插座盖之间，如图18所示，在摆杆和支架弹簧的作用下，其图7中a所示的顶头支架两側的导向筋可沿图20中d5所示的插座底座上相对应的导向槽上做自由上下往复运动。顶头被保持在顶头支架上，在顶头弹簧的弹力作用下，在顶头支架上向外施加压力，同时，顶头在顶头弹簧的作用下，顶头的尖端部始终压在两个跷动接触片的外侧面上，在顶头支架做上下运动时，可快速翻转两个跷动接触片的跷动状态；当顶头组件往下运动时，当图11所示的顶头a1处尖 端部分的移动越过跷动接触片支架厚度朝向触点方向的跷动接触片支架一侧的图15中b4界线时，顶头在顶头弹簧的作用下将两跷动接触片迅速翻转跷向电池包负接触片，从而达到快速接收电池包负极的电流；当顶头组件往上运动时，当图11所示的顶头a1处尖端部分的移动越过跷动接触片支架厚度反向触点方向的跷动接触片支架一侧的图15中的d4界线时，两个跷动接触片向图20中b5所示的中心方向跷动，使两个跷动接触片的触点迅速与电池包负接触片的连接脱离，从而达到快速断开电池包负极的电流的作用。
上压杆，如图4和图24所示，其被保持在工具机壳和摆杆上可上下运动，其图22所示的上压杆a6端顶在图23所示的摆杆a7处，当扳机推杆在外力的作用下向内运动时，图29所示的a11斜面压迫图22所示的上压杆c6斜面，使上压杆迅速向下运动，但当图29所示扳机推杆的a11斜面下端界线c11越过图22所示的c6斜面上端界线d6，其图29所示扳机推杆的下平面b11和图22所示上压杆的上平面b6相接触后，其上压杆位置保持不变；而当扳机推杆在弹簧弹力的作用向外运动时，当扳机推杆运动到图29所示界线c11越过图22所示的界线d6时，在顶头支架组件向上弹力的作用下，其上压杆可迅速自动复位。
摆杆，如图5和图23所示，其图23中b7端顶在顶头支架上端的凸起部平面上，其图23所示的c7孔通过金属销被保持在图25插座盖所示A2孔处的两固定筋上，可围绕图25中所示支点A2进行枢转摆动；当扳机推杆在外力的作用向内运动时，上压杆往下运动，图22所示的上压杆a6端迅速压着图23所示的摆杆a7处绕图25所示的支点A2向下枢转摆动，在图23所示摆杆b7端的作用下，顶头支架组件迅速往下运动。当扳机推杆在弹簧弹力的作用向外运动时，在扳机推杆运动到图29所示界线c11越过图22所示的界线d6时，其顶头支架组件有往上运动的空间，当顶头弹簧的弹力大于上压杆的压力时，顶头支架组件在顶头弹簧的弹力作用下，顶着图23所示摆杆b7端绕图25所示的支点A2向上枢转摆动，使所述的摆杆自动复位。通过摆杆的作用，可成倍增大顶头支架的行程，从而使电池组插座达到快速的通断功能。
支架弹簧，如图24所示，其保持在图6所示的顶头支架组件A1处和图20所示插座底座A2凸台之间，如图17所示，可顶着顶头支架组件往上运动，使两个跷动接触片迅速与电池包负接触片的联接脱离。
插座通断功能部件，如图12所示，由两个跷动接触片、两个辅助接触片和一个跷动接触片支架组成，其通过跷动接触片支架固定在图20所示的插座底座上，如图19所示，当两跷板外侧面在顶头弹簧压力作用下，顶头随顶头支架做上下运动时，跷板可迅速夹紧或脱离电池包负连接片，使电池组插座产生通/断功能
实施例2
图4A、图4B、图21至图45显示了本发明的第二实施案例。如图30所示，根据该实施例的插座组件包括：7A-顶头支架组件，8A-插座通断功能部件，10A-支架弹簧，12A-弹性联接夹片，13A-插座底座，14A-插座盖，15A-摆杆，B1-金属销；插座通断功能部件固定在插脚底座上，如图44所示，顶头支架组件在支架弹簧的弹力作用下保持在插脚底座和插座盖之间，如图43所示，弹性联接夹片固定在插座底座和插座盖上，如图图21所示。
其具体的实施方式是在图30所示的状态，当电池包插入电池组插座时，图26A中a9所示弹性联接夹片两边的6个弹性触点和图28中b10所示的电池包正接触片为多个弹性接触联接，如图27所示，弹性联接夹片接收来自电池包正极的电流，并在图26B所示的b9处通过电线连接输送给控制系统的PCB线路板端和串联在马达端的三组大功率场效应晶体管的输入端(漏极)；其图26A和图26B所示的弹性联接夹片固定在图45所示的插座底座和图25所示的插座盖上，如图21所示，其图26A中d9所示的部分平面紧靠在图45中a17所示的平面上，图26A中e9所示的两端面卡在图45中b17所示两固定筋之间，25所示的插座盖的b8处紧压在图26B中c9所示的面上；而此时，如图30所示，两跷动接触片与电池包负接触片是断开的，此时电路处于断开状态。
当扳机推杆向内运动，图29所示扳机的a11斜面压迫图22所示的上压杆c6斜面，使上压杆迅速向下运动，但当图29所示扳机的a11斜面越过图22所示的c6斜面，其图29所示扳机的下平面b11和图22所示上压杆的上平面相接触后，其上压杆位置保持不变；图22所示的上压杆a6端迅速顶着图23所示的摆杆a7处并绕图25中所示支点A2向下摆动，在图23所示摆杆b7端的作用下，顶头支架组件迅速往下运动，当顶头支架上图36所示的顶头a13处尖端部的移动越过跷动接触片支架厚度朝向触点方向的跷动接触片支架一侧图40中的b16界线时，顶头在顶头弹簧的作用下将四个跷动接触片迅速翻转跷向电池包负接触片，四个图38中所示a14触点夹紧电池包负接触片，四个图38中所示跷动接触片的a14触点与图28中a10所示的电池包负接触片接通，接收来自电池包的负极电流；当四跷动接触片向电池包负接触片枢转跷动过程中，会先压向图39所示两个辅助接触片的a15弧面部，该部分为弧面弹性体，四个跷动接触片和两辅助接触片为弹性接触连接，而图39所示的辅助接触片的三个b15部固定在跷动接触片支架上，如图41所示，如此，跷动接触片上接收的电流通过四个跷动接触片与跷动接触片支架的跷动处和辅助接触片两个途径传到跷动接触片支架上，跷动接触片支架将所接收的电流在图40所示的a16处通过电线连接输送给控制系统的PCB线路板的负端和串接在马达另一端的三组大功率场效应晶体管的输出端(源极)，此时电路接通，控制系统引导马达启动工作。
当扳机推杆在弹簧弹力的作用下向外运动时，在扳机推杆运动到图29所示界线c11越过图22所示的界线d6时，其顶头支架组件有往上运动的空间，顶头支架组件在顶头弹簧的弹 力作用下，顶着图23所示的摆杆b7端绕图25中所示支点A2向上枢转摆动，图23所示的摆杆a7处顶着图22所示的上压杆a6处，使上压杆向上运动并自动复位，当图36所示的顶头a13处尖端部分的移动越过跷动接触片支架厚度反向触点方向的跷动接触片支架一侧的图40中的d16界线时，四个跷动接触片向图45中b17所示的中心方向跷动，使四个跷动接触片迅速与电池包负接触片的连接脱离，此时电路自动断开，马达停止工作。
顶头支架组件，如图30和图31所示，由一个图33所示的顶头支架、四个图34所示顶头盖、四个图35所示的顶头弹簧和四个图36所示的顶头组成，顶头弹簧保持在顶头盖和顶头之间，图35所示顶头弹簧一端的内孔t14一端保持在图36所示的t15凸台外圆上，其图35所示顶头弹簧另一端的内孔t14保持在图34所示的v2凸台外圆上，图34所示的顶头盖上两凹槽t13装入图33所示的两v2凸台后，将顶头盖选择一定的角度后，顶头盖保持在图33所示的两s8凹槽中，顶头支架组件在支架弹簧的弹力作用下通过顶头支架保持在插座底座和插座盖之间，如图43所示，在摆杆和支架弹簧的作用下，其图32中a12所示的顶头支架两側的导向筋可沿图45中d17所示的插座底座相对应的导向槽上做自由上下往复运动，如图30所示。顶头被保持在顶头支架上，在顶头弹簧的弹力作用下，在顶头支架上向跷动接触片施加压力，同时，顶头在顶头弹簧的作用下，图36所示的顶头a13处尖端部始终压在四个跷动接触片的外侧面上，在顶头支架做上下运动时，可快速翻转四个跷动接触片的跷动状态；当顶头组件往下运动时，当图36所示的顶头a13处尖端部分的移动越过跷动接触片支架厚度朝向触点方向的跷动接触片支架一侧的图40中b16界线时，顶头在顶头弹簧的作用下将两跷动接触片迅速翻转跷向电池包负接触片，从而达到快速接收电池包负极的电流；当顶头组件往上运动时，当图36所示的顶头a13处尖端部分的移动越过跷动接触片支架厚度反向触点方向的跷动接触片支架一侧的图40中的d16界线时，四个跷动接触片向图45中b17所示的中心方向跷动，使四个跷动接触片的触点迅速与电池包负接触片的连接脱离，从而达到快速断开电池包负极的电流。
上压杆，如图4和图24所示，其被保持在工具机壳和摆杆上可上下运动，其图22所示的上压杆a6端顶在图23所示的摆杆a7处，当扳机推杆在外力的作用下向内运动时，图29所示的a11斜面压迫图22所示的上压杆c6斜面，使上压杆迅速向下运动，但当图29所示扳机推杆的a11斜面下端界线c11越过图22所示的c6斜面上端界线d6，其图29所示扳机推杆的下平面b11和图22所示上压杆的上平面b6相接触后，其上压杆位置保持不变；而当扳机推杆在弹簧弹力的作用向外运动时，当扳机推杆运动到图29所示界线c11越过图22所示的界线d6时，在顶头支架组件向上弹力的作用下，其上压杆可迅速自动复位。
摆杆，如图30和图23所示，其图23中b7端顶在顶头支架上端的凸起部平面上，其图23所示的c7孔通过金属销被保持在图25插座盖所示A2孔处的两固定筋上，可围绕图25中 所示支点A2进行枢转摆动；当扳机推杆在外力的作用向内运动时，上压杆往下运动，图22所示的上压杆a6端迅速压着图23所示的摆杆a7处绕图25所示的支点A2向下枢转摆动，在图23所示摆杆b7端的作用下，顶头支架组件迅速往下运动。当扳机推杆在弹簧弹力的作用向外运动时，在扳机推杆运动到图29所示界线c11越过图22所示的界线d6时，其顶头支架组件有往上运动的空间，当顶头弹簧的弹力大于上压杆的压力时，顶头支架组件在顶头弹簧的弹力作用下，顶着图23所示摆杆b7端绕图25所示的支点A2向上枢转摆动，使所述的摆杆自动复位。通过摆杆的作用，可成倍增大顶头支架的行程，从而使电池组插座达到快速的通断功能。
支架弹簧，如图24所示，其保持在图31所示的A3凸台和图45所示的插座底座A4处之间，如图42所示，可顶着顶头支架组件往上运动，使两个跷动接触片迅速与电池包负接触片的联接脱离。
插座通断功能部件，如图37所示，由两个跷动接触片、两个辅助接触片和一个跷动接触片支架组成，其通过跷动接触片支架固定在图45所示的插座底座上，如图44所示，当两跷板外侧面在顶头弹簧压力作用下，顶头随顶头支架做上下运动时，跷板可迅速夹紧或脱离电池包负连接片，使电池组插座产生通/断功能。
本发明着眼于进一步降低电枢回路中外接电阻的比重，提升电机的运行硬特性，使工具的工作周期时间缩短，提升工作效率，并同时节省电池的用量。
本发明的技术路线，是打破原工具电枢回路的结构，消除原开关的触点。并将原弹性静触点的电池包上两个连接输出部的联接，其中一个改为多触点的可操控通/断的动触点。而另一个输出部的连接，仍为弹性双面静触点，不同的是其触点在平面上的分布是呈等腰三角形或正梯形排列，即至少双面三点，共六个接触点，也可扩展至双面五点，共十个接触点，依此类推。
本发明可大幅提升工作效率或可节省工作电源，提升工具电机的运行特性的硬度。
本发明的结构可以替代开关的通断功能，同时改变电池组插座为双面的多触点接触，从而大大减少工具马达电枢回路中的总电阻。
上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和应用本发明。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改，并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本发明不限于上述的实施例，本领域技术人员根据本发明的揭示，不脱离本发明范畴所做出的改进和修改都应该在本发明的保护范围之内。

Claims (15)

  1. 一种电动工具中的电枢回路，包括电源、马达，电源的两极分别设有连接输出部的联接结构，其特征在于：所述联接结构中的一个为多触点的可操控通/断的动触点结构，另一个为双面多触点结构。
  2. 根据权利要求1所述的电动工具中的电枢回路，其特征在于：所述动触点结构为双面跷动接触结构具有电路的开关功能；所述双面多触点结构具有通断功能。
  3. 根据权利要求2所述的电动工具中的电枢回路，其特征在于：所述双面跷动接触结构的跷动处外设置辅助的弹性接触片，并联于跷动接触片跷动的接触片支架，以增强跷动接触的稳定性及并联额外的电流通道。
  4. 根据权利要求1所述的电动工具中的电枢回路，其特征在于：所述双面多触点结构的触点呈等腰三角形或正梯形排列。
  5. 根据权利要求1所述的电动工具中的电枢回路，其特征在于：所述双面多触点结构的每个面上设有N个触点，N为大于3小于7的整数。
  6. 一种采用权利要求1至5中任一所述的电枢回路的电动工具的电源插座，其特征在于：包括：
    插座壳体，其可固定于电动工具机壳内；电枢回路的联接部分设置于插座壳体中；
    输入部、输出部，其相对于所述的插座壳体固定；
    所述的输入部、输出部为电枢回路的组成部分，其一端与电源的正极或负极的一端采用双面多触点结构；其另一端与电源的另一极的电联接一个为多触点的可操控通/断的动触点结构；
    输出部采用电线连接至所需部位形成电枢回路。
  7. 根据权利要求6所述的电动工具的电源插座，其特征在于：
    所述的输入部其一端与电源的正极或负极的一端采用插入式弹性联接；其另一端与电源的另一极的电联接为可操控通断的双面跷动联接；
    至少有两个同步的跷动接触部件，可跷动联接电源一极的输出接触部件，使插座具有通断功能；
    还包括：
    可以上下往复运动的顶头支架组件；
    支架弹簧，安装于所述的插座壳体与顶头支架组件之间，使所述的顶头支架组件作向上运动；所述的顶头支架两内侧的顶头在弹簧弹力的作用下，施压力于至少两个跷动接触部件的外侧，所述的顶头支架使顶头运动于跷动接触部件枢转支点上下部，使跷动状态可翻转，以实现通断功能；
    摆杆，其设于插座顶部，摆杆的一端作为枢转的支点，另一端顶在顶头支架上端的凸起部，摆杆可绕支点枢转，压迫顶头支架组件向下运动。
  8. 根据权利要求7所述的电动工具的电源插座，其特征在于：所述输入部的插入式弹性电联接，其中包含弹性接触片，是由一种导电的弹性材料折弯而成的双面夹片，所述的双面夹片其联接电池组输出接触片的前部被分割成至少两个弹性接触点，并在分割部上端又有至少一个弹性接触点，三个弹性接触点呈等腰三角形排列，双面共至少有六个弹性接触点，即至少有六个接触电阻并联。
  9. 根据权利要求7所述的电动工具的电源插座，其特征在于：其输入部另一端与电池组另一端输出接触片的电联接是可操控的；所述的电联接是由至少两个跷动接触片部件和一个两侧有凹槽的跷动接触片支架组成，其跷动接触片支架相对于插座壳体固定，两个跷动接触片部件安装于所述支架两侧的凹槽内，并以凹槽底部与跷动接触片部件接触之部位为支点，使所述跷动接触片部件绕支点枢转跷动，当外力作用于跷动接触片部件并移至所述的支点朝向跷动接触片部件触点一侧时，所述的跷动接触片部件快速跷向电池组输出接触片，使其接触点联接所述的电池组输出接触片，完成电联接；当外力移至所述支点背向跷动接触片部件触点一侧时，所述的跷动接触片部件快速跷向相反方向，使所述的跷动接触片触点快速与电池组输出接触片分离，完成电断开。
  10. 根据权利要求7所述的电动工具的电源插座，其特征在于：两个弹性的辅助接触片其一端分别固定在跷动接触片支架两侧凹槽的外侧部，所述的两个辅助接触片的另一端呈弧面悬空置于两个跷动接触片的内侧；当跷动接触片部件向电池组输出接触片组件枢转时，首先压到所述的两个辅助接触片另一端的弧面部，然后，继续枢转向电池组输出接触片，直至跷动接触部件的触点与电池组输出接触片实现联接，此时，来自电池组输出接触片的电流通过所述的位于电池组输出接触片两侧面的跷动接触部件一端的触点，流向跷动接触片组件，该电流一部分通过跷动接触片与支撑其枢转的支点即跷动接触片支架两侧的凹槽与跷动接触片枢动联接，流向所述的跷动接触片支架；同时另一部分电流，通过所述两个辅助接触片被跷动接触片压靠之 弧面端流向固定在所述跷动接触片支架两侧的固定联接端，即流向所述的跷动接触片支架；两个辅助接触片分别跨接在所述至少两个跷动接触片与跷动接触片支架枢转联接的两端，是对枢转联接的电性能的一种补偿和加强。
  11. 根据权利要求9所述的电动工具的电源插座，其特征在于：包括一个呈
    Figure PCTCN2015075188-appb-100001
    形的顶头支架，其两侧的外侧部各有一条筋，相应地，在所述的带有通断功能的电池组插座的插座底座的相对位置的两侧各设有一条凹槽，使所述的顶头支架可在槽的导向下作上下运动；所述的顶头支架其两边各有一通孔，通孔内装有顶头和顶头弹簧，两圆孔靠支架外侧装有盖板将圆孔外端封闭；顶头弹簧一端压在盖板上，另一端顶在顶头内孔底部圆形凹槽内，在顶头弹簧的弹力作用下，顶头向尖端部方向运动；由顶头支架、顶头、顶头弹簧、盖板组成一个顶头支架组件；
    由至少两个跷动接触片部件安装在所述的跷动接触片支架两侧凹槽内，并以此凹槽底部为支点，可使两侧的至少两个跷动接触片部件枢转；相应地，所述顶头支架组件中的至少两个顶头在顶头弹簧的弹力挤压下，其尖端部分压靠在所述的至少两个跷动接触片部件的外侧，顶头支架组件所述的导向凹槽上下运动，其两侧的顶头其尖端同时压靠在所述的跷动接触片部件外侧随支架上下运动；当所述的至少两个顶头其尖端越过所述的至少两个跷动接触片部件的枢转支点时，所述的跷动接触片部件的跷动状态则翻转，实现通/断功能。
  12. 根据权利要求7所述的电动工具的电源插座，其特征在于：一个支架弹簧被安装在所述的插座底座的凸起部与顶头支架横梁下部之间，所述的支架弹簧的弹力驱使所述的顶头支架组件沿所述的导向槽作向上运动。
  13. 根据权利要求7所述的电动工具的电源插座，其特征在于：一个摆杆，其一端作为枢转支点并被设于所述的插座盖上端的凸起部，所述的摆杆可绕其支点枢转摆动；当压迫所述的摆杆另一端枢转向下运动，并压迫所述的顶头支架组件沿导向槽向下运动，当压迫所述的摆杆向下枢转运动的力小于所述的支架弹簧的弹力时，支架弹簧推动顶头支架组件上升，并使所述的摆杆一端枢转向上。
  14. 根据权利要求6至13中任一所述的电动工具的电源插座，其特征在于：所述电源为电池包。
  15. 根据权利要求6至13中任一所述的电动工具的电源插座，其特征在于：所述电动工具为电池式电动工具。
PCT/CN2015/075188 2014-12-31 2015-03-27 一种电动工具中的电枢回路及电池组插座 WO2016106984A1 (zh)

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