CN2527022Y - Gearing motor - Google Patents
Gearing motor Download PDFInfo
- Publication number
- CN2527022Y CN2527022Y CN 02203165 CN02203165U CN2527022Y CN 2527022 Y CN2527022 Y CN 2527022Y CN 02203165 CN02203165 CN 02203165 CN 02203165 U CN02203165 U CN 02203165U CN 2527022 Y CN2527022 Y CN 2527022Y
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- Prior art keywords
- clutch
- gear
- motor
- interlock
- friction
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- Expired - Fee Related
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Abstract
The utility model relates to a gear transmission motor provided internally with a clutch mechanism. A framework is provided with a motor and a motor clutch transmitted by a gear deceleration group, wherein the gear deceleration group consists of a transmission connected planetary gear mechanism, a mid gear, and an output gear transmitted by an operated subject with self-recovery ability; a cam connecting rod controlled by the output gear is engaged with the axial modification part of the motor clutch, and a control rod interlocked with the cam connecting rod can be braked by a rotary part of the motor clutch that is provided with a clutch-control mechanism and a switching part. The gear transmission motor dexterously employs a transmission spiral spring, an interlocking rotary shaft, an inertial wheel and a friction wheel of the clutch-control mechanism, and transmits the motor rotary driving force to a switching part of the motor clutch as the driving force of transition parts. The utility model can stably transmit or cut off the motor rotary driving force and steadily control the operation of the operated subject, and has a prominent advantage of low manufacturing cost.
Description
Technical field
The geared dynamo of dress clutch mechanism in the utility model relates to.
Background technology
In the past, in order to obtain effective output from micro-machine, on motor driving shaft, the geared dynamo that gear reduction is housed was that people are known, and was widely used on the various device.
Yet, in a lot of equipment, need at first to drive controlled parts to operating position and remain on this position, allow controlled parts to rely on the reset force that self has to be reset to its initial position then, the clutch mechanism that therefore transmits power/cutting machine connection is the indispensable basic comprising of geared dynamo.
In the known technology, open flat 1-194833 communique as the spy of Japan and put down in writing, when driving load and use machine operation, drive the action of a magnetic field, make and adsorb sheet and be adsorbed on the stator, be in connection status because of absorption makes clutch with the stator of motor by load.Simultaneously, use under the motor non-action state at the driving load, the magnetic field of stator disappears, and therefore absorption sheet disengagement stator makes clutch be in dissengaged positions.
Yet the power of this clutch mode is taken from and is driven the magnetic field that load is used motor stator, and operational stroke of its absorption sheet is not only little, and the difficult amplification of its linear reciprocation action, exists the problem that is difficult to accurately carry out clutch for clutch control.
On another Te Kaiping 3-198638 communique of Japan, disclose by magnetic induction transmission rotatory force, a permanent magnet that it is arranged in opposite directions and an end of induction coil drive with the motor rotation by driving load, utilize the operating sheet of the magnetic energy driving clutch of permanent magnetic and induction coil.Though the clutch mode of this induction coil formula widely adopts,, exist the high problem of manufacturing expense owing to used the induction coil of permanent magnet and specific materials.
Summary of the invention
The utility model be with above-mentioned situation be a kind of manufacturing expense of proposing of background lower, can stablize and transmit the geared dynamo that power/cutting machine connects.
The utility model for the technical problem that solves the above-mentioned background situation and exist by the following technical solutions: be provided with motor in the geared dynamo skeleton and be transmitted in the electric motor clutch of gear reduction group, the gear reduction group is by the planetary gears that is in transmission connection, the output gear that is operated object that idler gear and being transmitted in has from reset force constitutes, its inclined-plane operating portion of cam connecting rod that is controlled by output gear is connected mutually with the variation of axial position part of electric motor clutch, brake rotating part in electric motor clutch with the control lever of cam connecting rod interlock, electric motor clutch is provided with its clutch for clutch control mechanism and switching part; Described clutch for clutch control mechanism is, the rotating driveshaft that is connected with drive of motor relatively rotates the interlock rotating shaft that is supported with on same central axis, the interlock helical spring one end that is socketed on the interlock rotating shaft is fixed in rotating driveshaft, the other end is fixed in the flying wheel that is relatively rotated support by the interlock rotating shaft, interlock helical spring and interlock rotating shaft fluid-tight engagement when this flying wheel lags behind rotation, the interlock rotating shaft is provided with the friction gear that is connected with its friction; Described switching part is, the friction gears engaged has swing arm, and its stopper engages with gear reduction group rotating parts control strip.
The utility model can also be taked following technical measures:
Described motor is an ac synchronous motor.
Described electric motor clutch be by the coaxial upside clutch part that has upside pinion and peripheral uniform control pawl, middle helical spring and variation of axial position, constitute with motor engagement downside clutch part, the opposite face of upper and lower side clutch part be provided with engage concavo-convex.
Described planetary gears constitutes by the casing that internal-gear and external tooth gear, axle support are set with internal-gear planet gear meshed parts, the upside pinion of electric motor clutch is the centre wheel of planetary gears, external tooth gear is engaged with the speed governing pinion, the support plate of its upper end is provided with the speed regulator of the planetary gears that constitutes by centrifugal sliding part with the sliding cylinder of its sliding contact, and the outer peripheral face of support plate is provided with the stopper of switching part swing arm and engages control strip.
Interlock helical spring in the described clutch for clutch control mechanism, the internal diameter size of its spring coil is less than the outside dimension of interlock rotating shaft.
Friction gear in the described clutch for clutch control mechanism, be by be fixed in the interlock rotating shaft and periphery fixedly slip ring upside friction part and be supported in the interlock rotating shaft, be and be inverted hypanthial downside friction part and constituted, downside friction hypanthial inwall of part and slip ring frictional engagement, the upper surface of upside friction part is provided with the friction gear.
The beneficial effects of the utility model and advantage are: ingenious interlock helical spring, interlock rotating shaft, flying wheel and the friction wheel that utilizes clutch for clutch control mechanism of this geared dynamo, the motor rotary driving force is sent to the switching part of electric motor clutch, actuating force as converting member, electric motor clutch is engaged, drive and be operated object to operating position.Output gear and cam connecting rod make the electric motor clutch disjunction subsequently.This moment, clutch for clutch control mechanism kept the driven position of switching part under the motor turning effort, was cut off power supply until motor.After this clutch for clutch control mechanism becomes free state owing to lose motor rotary driving force interlock rotating shaft under the effect of flying wheel, the switching part of electric motor clutch is replied rapidly and is initial position, comprise that the interior again gear reduction group of planetary gears, idler gear and output gear allows to be operated object and also return back to initial position under its restoring force drives, output gear and cam connecting rod make electric motor clutch recover engagement state, for next electric motor starting is got ready.As seen this geared dynamo can stably transmit or cut off the motor rotary driving force, makes operand stably move control.
The electric motor clutch switching part of this geared dynamo is by the permanent magnet in the clutch for clutch control mechanism replacement known technology or the induction coil of special substance, and the electric motor clutch of being finished by a plurality of speed increasing gears and the parts control in the known induction coil formula gear motor can be simplified by clutch for clutch control mechanism, especially planetary gears can reduce the travelling gear parts and also helps miniaturization, therefore, the manufacturing cost of this geared dynamo is lower.
Description of drawings
Accompanying drawing 1 is the utility model embodiment washing machine drainage valve keying geared dynamo section of structure.
Accompanying drawing 2 is assembling schematic diagrames of Fig. 1.
Accompanying drawing 3 is each exploded sketch of Fig. 2.
Accompanying drawing 4 is schematic diagrames of the cam connecting rod operate condition of Fig. 1.
Accompanying drawing 5 is clutch for clutch control mechanism section of structures of electric motor clutch.
Accompanying drawing 6 is schematic diagrames of other operate condition of cam connecting rod of Fig. 1.
Embodiment
For make the utility model more specifically, clearer, described in detail below in conjunction with each drawings and Examples.At first, Fig. 1～3 show the geared dynamo (10) of the draining valve keying driving usefulness in the washing machine.It has a skeleton (12) that is contained in the hollow box body structure on the body of the washing machine.Pulley (16) as the train of reduction gears (14) and the operating member of deceleration means is assembled on this skeleton (12).The rotary driving force that drives the motor (18) of load usefulness passes to pulley (16) by train of reduction gears (14) to be made it from the initial position to the operating position.Skeleton (12) also is provided with electric motor clutch (52), planetary gears (20), idler gear (54), output gear (56), speed regulator (94), the clutch for clutch control mechanism and the switching part of electric motor clutch.Be described in more detail, skeleton (12) is made of the rack body (26) and the lid (28) of opening box shape.The bottom dislocation platform (30) of the main body of support (26) is put motor (18).
This motor (18) that drives load usefulness is an ac synchronous motor.It is by electric machine support (32) and centre bore (42), rotor (34) and fulcrum (44), stator (50), coil (36) and bobbin (48), permanent magnet (38), output shaft (40) and anti-control pawl (46) that reverses and control pin (47).
Electric motor clutch (52) is made of upside clutch part (58), downside clutch part (60) and helical spring (62).Upside clutch part (58) is provided with integrally formed upside pinion (58a) and control pawl (58b) on coaxial, forms control part (58c) below it.Downside clutch part (60a) has downside gear (60a) and upside and downside hub portion, and (60b, 60c), downside gear (60a) is meshed with output pinion (40a) on being fixed on motor (18) output shaft (40).Simultaneously, on downside clutch part (60) and upside clutch part (58) below be provided with can concavo-convex cooperation control strip (60d) and control part (58c), the upper side hub part (60b) of downside clutch part (60) is provided with helical spring (62), makes upside clutch part energy variation of axial position.
Planetary gears (20) is to be made of casing (64) and planetary gear member (66).Casing (64) is whole for being with the drum at the end, and the inner peripheral surface of its barrel and outer peripheral face are formed internal-gear (64a) and external tooth gear (64b) respectively.On the central shaft of bottom wall portion, be provided with the centre bore (64c) of perforation.Planetary gear member (66) is made of gear pin (72), upside and downside plectane (68,70), planetary gear (74) and connection gear (76).Upside and downside plectane (68,70) have centre bore (68a) and the inserting hole (70a) that passes extension of central axis.On the centre bore (64c) of casing (64), insert the upside pinion (58a) of upside clutch part (58).Upside pinion (58a) and planetary gear (74) mesh together, and simultaneously, planetary gear (74) and internal-gear (64a) are meshing with each other together.Upside pinion (58a) has constituted the centre wheel of planetary gears (20).And in the present embodiment, casing (64) rotation that constitutes planetary gears (20) is prevented under the state, and the rotary driving force of motor (18) can be sent on the pulley (16).And allow under casing (64) rotation status, its rotary driving force can not be sent on the pulley 16.
Idler gear (54) has idler gear (54a) and the middle pinion (54b) that is configured as one on coaxial.Idler gear (54a) is meshed with connection gear (76).The output gear of present embodiment (56) is the gear part (56a) that has semi-circular shape, and it is meshed with middle pinion (54b).And below gear part (56a), set up circular-arc sliding wall portion (56b), interstitial projection (56d) between the arranged outside of its circumferential side end and sliding wall portion (56b).
Downside in idler gear (54) has set the cam connecting rod (78) that can swing on fulcrum (84b).It is made of axial region (78a), sliding contacting part (78b) and the protuberance (78c) of drum.The outstanding end of sliding contacting part (78b) can be slipped in the sliding wall portion (58b) that is located on the output gear (56a).The outstanding end of protuberance (78c) is provided with operating portion (80), and middle body is shaped on the through hole (80a) of extend longitudinally.And operating portion (80) is so be provided with the following inclined-plane (80c) that is connected with downside hub portion (60c).Cam connecting rod (78) is provided with a pair of protrusion tab (78b, 78d) at the outer peripheral face of its axial region (78a).
Near the axle of cam connecting rod (78) is supported with by its a pair of protrusion tab (78b, 78d) controls the control lever of interlock (82) with it, the protrusion tab (82b) that control lever (82) is provided with is connected between a pair of protrusion tab (78b, 78d), the control pawl (82a) of control lever (82) engages with the control pawl (58b) of upside clutch part (58), is used for braking control upside clutch part (58) rotation.
Pulley (16) integral body is thick circular plate shape, and top middle body is made the installing hole (86) towards upper shed.Output gear (56) axial region (56e) this hole of packing into.Be tied with lead (90) on all grooves (88) of pulley (16), this lead one side end is by pulley (16) control, and end side is contained in not to be had on the illustrated operand.Lower axial end in pulley (16) is provided with lid (92), and this lid (92) is fixed on the casing main body (26), thereby can prevent that limited slip wheel (16) exposes.
In the skeleton (12), be provided with speed regulator (94), it is made of speed governing pinion (96), support plate (98).Sliding part (102) by fulcrum post (100,100) and through hole (104) supporting is set on the support plate.Sliding part during rotation (102) centrifugalization is expanded to radial outside, and sliding cylinder (106) inner peripheral surface that is configured as the drum of one with lid (28) keeps sliding contact, just adjustable speed.Speed governing pinion (96) is meshed with external tooth gear (64b) on casing (64) outer peripheral face that constitutes planetary gears (20).In the present embodiment, the upside in sliding part (102) is provided with adsorption piece (103), so that make sliding part (102) obtain the absorption affinity of radially inner side when centrifugal force is inoperative.And, on the outer peripheral face of support plate (98), be made of one the control strip (108) of shape.
The clutch for clutch control mechanism (110) of electric motor clutch (52) is made of rotating driveshaft (112), interlock helical spring (114), flying wheel (116), interlock rotating shaft (118) and friction gear (24).Rotating driveshaft (112) has driven wheel (120), and this takes turns output pinion (40a) engagement of (120) and motor (18).Cylindrical portion (122) on the top of driven wheel (120) is equipped with the relative rotating and interlock rotating shaft (118) on same central axis with its maintenance.This interlock rotating shaft (118) is a drum, be provided with the supporting slice (124) of ring-type at its axial central portion, upside in supporting slice (124), be provided with the flying wheel made from the high specific gravity metal material (116), its through hole (126) is equipped with the central authorities that slightly are circular plate shape and is provided with the assembly (128) that inserts through hole (130).
On interlock rotating shaft (118), the interlock helical spring (114) that has spring steel to make, this interlock helical spring (114) is under the free state that is not subjected to the external force effect, the spring coil internal diameter size is done a little bit smallerly than the outside dimension of interlock rotating shaft (118), under the state that inserts from the outside in the interlock rotating shaft (118), interlock helical spring (114) is based on the elasticity of self, and its total length is by tightly on interlock rotating shaft (118).One side end of interlock helical spring (114) is fixed on rotating driveshaft (112) cylindrical portion (122).End side then is fixed on the assembly (128) of flying wheel (116).
Friction gear (138) is meshing with each other with the swing arm (22) that is provided with sector (140).Simultaneously, a side end of the circumferencial direction of tooth (140) has formed brake (142), in order to stop the rotation of swing arm (22) overshoot amount.Wobble gear (22) has formed the dislocation platform at middle body radially, and its end (144) are positioned at the upside of base end part (146).Be provided with the projection (148) that articulates the helical spring that resets (150) above the base end part (146).On the edge part of circumferencial direction one side of swing arm (22) base end part (146), be provided with a stopper towards swaying direction (152), it engages with control strip (108) on being located at the speed regulator support plate.In the present embodiment, under the stopper (152) of swing arm (22) and the state that control strip (108) engages, can stop the casing (64) that constitutes planetary gears (20) to rotate.
The action of this geared dynamo (10) is described with Fig. 4～6 below.At first, operand is in initial position.As shown in Figure 4, during motor (10) energising, the sliding contacting part (78b) of cam connecting rod (78) is connected with the slide wall portion (56b) of output gear (56), therefore under base end part (80d) effect of cam connecting rod (78) operating portion (80), upper and lower side clutch part (58) (60) engages.So the rotary driving force of output pinion (40a) is by planetary gears (20), idler gear (54), output gear (56), send pulley (16) to, lead (90) is reeled, and is contained in the operand on the lead (90), can drive from initial position and be indexed to operating position.As shown in Figure 5, the also i.e. and then rotation of rotating driveshaft (112) with output pinion (40a) engagement makes interlock rotating shaft (118) rotation by interlock helical spring (114).At this moment, friction gear (138) is owing to resistance to sliding is rotated.So swing arm (22) withstands the reset force of helical spring (150), toward the opposite spin of speed governing pinion (96) direction of rotation.Therefore, the stopper (152) on the swing arm (22) is prevented from the rotation of speed governing pinion (96), by external tooth gear (64b) rotation of the casing (64) of planetary gears (20) also is prevented from.This moment, electric motor clutch was in connection status, and the revolving force of motor (18) can be sent on the pulley (16) by gear reduction group (20), was indexed to operating position being operated object from the initial position driving.
When the control strip (108) of speed governing pinion (96) was subjected to stopper (152) control of wobble gear (22), the downside friction part (134) of friction gear (24) became idle running.And, downside friction part (134) rubs parts (132) idling conditions to upside under, also can keep transmitting from the moment of torsion of motor (18), therefore, swing arm (22) keeps the state to control strip (108) control.
Be operated object drive be indexed to operating position after, as shown in Figure 6, the sliding contacting part (78b) of cam connecting rod (78) is pulled to the direction of rotation of output gear (56) by the effect of the projection (56d) of output gear (56), therefore, cam connecting rod (78) is in (direction of arrow among Fig. 6) rotation around the rotary middle spindle.Therefore, the end (80b) of cam connecting rod (78) operating portion (80) is connected with downside hub portion (60c).As a result, lower end clutch part (60) is pulled to axial downside because of the reset force of helical spring (62), has removed the engagement state with upside clutch part (58), thereby the rotary driving force transmission of output pinion (40a) is less than on the connection gear (76).Here, be operated the reset force that object has because of self, beginning is done homing action to initial position, but the downside friction parts (134) that constitute friction gear (24) are for the upside friction part (132) that is provided with pair of friction components gear (138), the rotation relatively owing to the slip effect of slip ring (136), so, swing arm (22) retentive control state.And, remove under the state of a control at upside clutch part (58) control part (58c) and downside clutch part (60) control strip (60d), swing by cam connecting rod (78), control lever (82) can stop the opposite spin to upside clutch part (58), the result, can stop opposite spin, also can make to be operated object and to remain on operating position to connection gear (76).
After crossing certain hour, when stopping motor (18) power supply, stop in a flash at motor (18), clutch for clutch control mechanism (110) is subjected to the braking force influence.That is to say that this braking force becomes converse rotating force,, act on the fastening opposite direction interlock helical spring (114).Thereby interlock helical spring (114) is unclamped from interlock rotating shaft (118).Particularly in the present embodiment, a side end of interlock helical spring (128) is fixed on the flying wheel (116), therefore, because the moment of inertia effect of flying wheel (116) makes interlock helical spring (114) obtain lax more power.Because interlock helical spring (114) decontroled, 7 is the same as shown, and interlock rotating shaft (118) becomes free state, the result, and the revolving force of control swing arm (22) is disengaged moment and returns to initial position.Like this, the rotation at once of the casing (64) of planetary gears (20).As a result, be operated the reset force of object, carry out homing action to initial position from operating position according to self.
Operands such as the draining valve of use in washing machine only possess very little reverse reset force, also can adopt the adsorption pieces such as medal spring of additivity, to replenish reverse reset force to being operated object.
Claims (6)
1, geared dynamo, by skeleton, motor, gear reduction and transmission mechanism are formed, it is characterized in that: be provided with motor in the geared dynamo skeleton and be transmitted in the electric motor clutch of gear reduction group, the gear reduction group is by the planetary gears that is in transmission connection, the output gear that is operated object that idler gear and being transmitted in has from reset force constitutes, its inclined-plane operating portion of cam connecting rod that is controlled by output gear is connected mutually with the variation of axial position part of electric motor clutch, brake rotating part in electric motor clutch with the control lever of cam connecting rod interlock, electric motor clutch is provided with its clutch for clutch control mechanism and switching part; Described clutch for clutch control mechanism is, the rotating driveshaft that is connected with drive of motor relatively rotates the interlock rotating shaft that is supported with on same central axis, the interlock helical spring one end that is socketed on the interlock rotating shaft is fixed in rotating driveshaft, the other end is fixed in the flying wheel that is relatively rotated support by the interlock rotating shaft, interlock helical spring and interlock rotating shaft fluid-tight engagement when this flying wheel lags behind rotation, the interlock rotating shaft is provided with the friction gear that is connected with its friction; Described switching part is, the friction gears engaged has swing arm, and its stopper engages with gear reduction group rotating parts control strip.
2, geared dynamo according to claim 1 is characterized in that: described motor is an ac synchronous motor.
3, geared dynamo according to claim 1, it is characterized in that: described electric motor clutch be by the coaxial upside clutch part that has upside pinion and peripheral uniform control pawl, middle helical spring and variation of axial position, constitute with motor engagement downside clutch part, the opposite face of upper and lower side clutch part be provided with engage concavo-convex.
4, geared dynamo according to claim 1, it is characterized in that: described planetary gears is by internal-gear and external tooth gear are set, the casing that axle supports and constitute with internal-gear planet gear meshed parts, the upside pinion of electric motor clutch is the centre wheel of planetary gears, external tooth gear is engaged with the speed governing pinion, the support plate of its upper end is provided with the speed regulator of the planetary gears that constitutes by centrifugal sliding part with the sliding cylinder of its sliding contact, and the outer peripheral face of support plate is provided with the stopper of switching part swing arm and engages control strip.
5, geared dynamo according to claim 1 is characterized in that: the interlock helical spring in the described clutch for clutch control mechanism, the internal diameter size of its spring coil is less than the outside dimension of interlock rotating shaft.
6, geared dynamo according to claim 1, it is characterized in that: the friction gear in the described clutch for clutch control mechanism, be by be fixed in the interlock rotating shaft and periphery fixedly slip ring upside friction part and be supported in the interlock rotating shaft, be and be inverted hypanthial downside friction part and constituted, downside friction hypanthial inwall of part and slip ring frictional engagement, the upper surface of upside friction part is provided with the friction gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203165 CN2527022Y (en) | 2002-02-09 | 2002-02-09 | Gearing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203165 CN2527022Y (en) | 2002-02-09 | 2002-02-09 | Gearing motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2527022Y true CN2527022Y (en) | 2002-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02203165 Expired - Fee Related CN2527022Y (en) | 2002-02-09 | 2002-02-09 | Gearing motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2527022Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113161A (en) * | 2014-06-24 | 2014-10-22 | 宁波东海定时器有限公司 | Motor tractor |
| CN109326494A (en) * | 2018-11-14 | 2019-02-12 | 厦门大恒科技有限公司 | A kind of delayed releasing breaker based on movement inertia |
| KR20200028276A (en) * | 2018-09-06 | 2020-03-16 | 주식회사 에스 씨디 | Driving device for laundry treating apparatus and laundry treating apparatus comprising the same |
| CN110886067A (en) * | 2018-09-06 | 2020-03-17 | 株式会社Scd | Drive device for laundry treatment apparatus and laundry treatment apparatus comprising the same |
-
2002
- 2002-02-09 CN CN 02203165 patent/CN2527022Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113161A (en) * | 2014-06-24 | 2014-10-22 | 宁波东海定时器有限公司 | Motor tractor |
| CN104113161B (en) * | 2014-06-24 | 2016-09-21 | 宁波东海定时器有限公司 | A kind of motor traction apparatus |
| KR20200028276A (en) * | 2018-09-06 | 2020-03-16 | 주식회사 에스 씨디 | Driving device for laundry treating apparatus and laundry treating apparatus comprising the same |
| CN110886067A (en) * | 2018-09-06 | 2020-03-17 | 株式会社Scd | Drive device for laundry treatment apparatus and laundry treatment apparatus comprising the same |
| KR102616617B1 (en) * | 2018-09-06 | 2023-12-26 | 주식회사 에스 씨디 | Driving device for laundry treating apparatus and laundry treating apparatus comprising the same |
| CN109326494A (en) * | 2018-11-14 | 2019-02-12 | 厦门大恒科技有限公司 | A kind of delayed releasing breaker based on movement inertia |
| CN109326494B (en) * | 2018-11-14 | 2024-03-15 | 厦门大恒科技有限公司 | Time delay tripping circuit breaker based on motion inertia |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |