CN206363962U - A kind of double-layer three-phase electric motor type relay - Google Patents
A kind of double-layer three-phase electric motor type relay Download PDFInfo
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- CN206363962U CN206363962U CN201720027011.8U CN201720027011U CN206363962U CN 206363962 U CN206363962 U CN 206363962U CN 201720027011 U CN201720027011 U CN 201720027011U CN 206363962 U CN206363962 U CN 206363962U
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- gear
- worm
- electric motor
- double
- phase electric
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Abstract
The utility model is related to a kind of double-layer three-phase electric motor type relay, including housing, three groups of moving electrodes and stationary electrode that one end is stretched into, is fixed in housing upper cavity, located at housing lower chamber inner driving device, the drive device includes direct current generator and the reduction gearing mechanism being made up of worm screw, worm-gear toothing group, sector gear and driving block, worm screw is arranged on direct current generator, and worm screw and sector gear are connected with worm gear and the straight-tooth gear engagement of worm-gear toothing group respectively；Driving block can be arranged in lower chamber, and be connected with quadrant drive, and it is provided with the driving fixture block for the elastic conducting contact pin for stretching into upper cavity and blocking moving electrode, the movable contact of elastic conducting contact pin is driven to close and separate with stationary contact, while the microswitch in driving block triggering lower chamber.The anti-stationary magnetic field interference performance of relay can be so improved, safe and reliable, simple in construction, difficulty of processing and cost are low, packaging efficiency is high, closure and separation control accuracy height, reaction speed are fast.
Description
Technical field
The utility model belongs to relay technical field, more particularly to a kind of double-layer three-phase electric motor type relay.
Background technology
At present, the built-in on-load switch that existing intelligent electric energy meter is used mostly uses magnetic latching relay, this relay
Electromagnet is made using magnet coil and permeability magnetic material in device, pulls electrode to complete switch motion using electromagnetic induction principle, simultaneously
Carry out maintained switch state using magnet, but there is following defect when applying on electric energy meter in this magnetic latching relay：
1st, because magnetic latching relay is to realize action by the cooperation of electromagnetic circuit and permanent magnetic circuit and counter-force, because
The interference of this strong external magnetic field may cause the cooperation of energized relay circuit to be lacked of proper care, so as to cause misoperation or be failure to actuate, from basic
Say that magnetic latching relay can not resist strong external magnetic field interference in principle.
2nd, the contact action of magnetic latching relay is a kind of accelerated motion, and very big collision can be produced during contact, is led
Cause to produce rebound after contact, because the distance of rebound is very short, very big electric arc can be produced under high current and arc is held constantly,
Arc district center temperature up to thousands of degree more than, this can make contact surface molecule distil rapidly, aggravate contact abrasion, while make after
The temperature rise rise of appliance contact, the influence to contact endurance and contact resistance of knock-oning is very big, and magnetic latching relay can be from
Improved in structure to reduce contact bounce, but be difficult basic elimination, therefore hidden danger is brought to contact reliability.
3rd, when magnetic latching relay is acted, electromagnetic circuit and permanent magnetic circuit can all be worked, and the magnetic flux of two kinds of magnetic circuits is needed
To coordinate ability normal work with counter-force, due to the limitation of volume, the suction that electromagnetic circuit is produced is limited, causes contact to be pressed
Power can not be too big, and otherwise relay can not be acted, and permanent magnetic circuit can not be too big to the confining force of contacts status, thus contact electricity
Resistance can be than larger；In addition, a contact force part comes from the predeformation of elastic movable contact spring, temperature rise and fatigue during the life-span
Reed predeformation can be made to be tapered into the increase of action frequency, cause contact force to taper into, thus contact electricity
Resistive is big and unstable, and temperature rise improves to further result in and holds arc time lengthening, so as to form vicious circle, finally makes to touch
Point ablation is bonded, and causes failure.
Utility model content
In order to solve above-mentioned technical problem present in prior art, the utility model, which provides one kind, to keep original
After on-load switch pulsed drive and action under the premise of the power-saving technology of holding contact state, anti-stationary magnetic field interference performance is improved,
Safe and reliable and simple in construction, difficulty of processing and cost are low, and packaging efficiency is high, and closure and separation control accuracy, reaction speed are fast
Double-layer three-phase electric motor type relay.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：
A kind of double-layer three-phase electric motor type relay, includes housing, three groups of moving electrodes and stationary electrode；The housing includes upper
Cavity and lower chamber, one end of three groups of moving electrodes and stationary electrode are stretched into, are fixed in upper cavity, and moving electrode is provided with bullet
Property guide-joining plate, one end of the elastic conducting contact pin actively extends on stationary electrode and is provided with movable contact towards stationary electrode side,
The stationary electrode is towards being provided with stationary contact at movable contact；It is additionally provided with the lower chamber for controlling moving electrode and stationary electrode mutual
The drive device connected, the drive device includes direct current generator and reduction gearing mechanism, it is characterised in that：The deceleration transmission
Mechanism is made up of worm screw, worm-gear toothing group, sector gear and driving block；Wherein, the worm screw is arranged on the drive of direct current generator
On moving axis, the worm-gear toothing group and sector gear are rotatably mounted in lower chamber, and worm screw and sector gear respectively with
Worm gear and straight-tooth gear the engagement connection of worm-gear toothing group；The driving block is slidably mounted in lower chamber, and with fan
Shape gear drive is connected, and the position of its correspondence moving electrode is provided with driving fixture block, and the driving fixture block is stretched into upper cavity and blocked
Firmly elastic conducting contact pin, makes the movable contact in elastic conducting contact pin be slidably reciprocated with driving block, closes and separate with stationary contact, simultaneously
Microswitch in driving block triggering lower chamber.
Further, the sector gear is provided with positioned at the opposite end of tooth form and stirs afterbody, the driving block corresponding positions
Put provided with stirring bayonet socket, it is described stir afterbody be actively stuck in stir in bayonet socket, drive driving block in lower chamber back and forth
Slide.
Further, the driving fixture block is stuck in installation bayonet socket provided with bayonet socket, the end of the elastic conducting contact pin is installed.
Further, the driving fixture block, stir bayonet socket and bayonet socket and driving block be installed and be integrally formed.
Further, limiting plate is provided with close to the drive shaft end of direct current generator inside the upper cavity, it is described spacing
Plate is integrally formed with housing.
Further, the sector gear is provided with the gear area that the straight-tooth gear engagement with worm-gear toothing group is connected, and
Upper skidding area and lower skidding area positioned at gear area two ends.
Further, it is described to stir afterbody, gear area, upper skidding area and lower skidding area and sector gear is integrally formed.
The beneficial effects of the utility model are：
The utility model passes through above-mentioned technical proposal, you can kept after original on-load switch pulsed drive and action is kept
Under the premise of the power-saving technology of contacts status, anti-one times of stationary magnetic field interference performance is improved, contact bounce phenomenon is eliminated, increase is touched
Point pressure, contact resistance is small, stablize constant, so as to ensure that the security of on-load switch built in intelligent electric energy meter and reliable
Property, and the component of worm-and-wheel reduction gearing mechanism is few, and simple in construction, difficulty of processing and cost are substantially reduced, assembling effect
Rate is also significantly improved, while also can further improve the closure and separation control accuracy and closure and separation reaction speed of relay
Degree.
In addition, by setting restriction of the limiting plate effectively to the drive shaft of direct current generator in the axial direction, it is to avoid because
Drive shaft excessively moves axially and causes the problem of direct current generator is damaged, and service life is longer, and performance is more stable, more reliable.
Brief description of the drawings
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is bowing for the i.e. non-power status of double-layer three-phase electric motor type relay embodiment contact separation described in the utility model
Depending on structural representation；
Fig. 2 is facing upward for the i.e. non-power status of double-layer three-phase electric motor type relay embodiment contact separation described in the utility model
Depending on structural representation；
Fig. 3 is the double-layer three-phase electric motor type relay embodiment closing of contact described in the utility model i.e. vertical view of "on" position
Structural representation；
Fig. 4 is looking up for the i.e. "on" position of the double-layer three-phase electric motor type relay embodiment closing of contact described in the utility model
Structural representation；
Fig. 5 is the double-layer three-phase electric motor type relay embodiment closing of contact described in the utility model i.e. solid of "on" position
Structural representation；
Fig. 6 is the another of the i.e. "on" position of the double-layer three-phase electric motor type relay embodiment closing of contact described in the utility model
Dimensional structure diagram；
Fig. 7 be in double-layer three-phase electric motor type relay embodiment described in the utility model drive device and three groups of moving electrodes and
The structural representation of stationary electrode.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
As shown in Fig. 1 to Fig. 7：
The utility model embodiment provides a kind of double-layer three-phase electric motor type relay, includes housing 1, three groups of moving electrodes
2 and stationary electrode 3；The housing 1 includes upper cavity 11 and lower chamber 12, and one end of three groups of moving electrodes 2 and stationary electrode 3 is stretched
Enter, be fixed in upper cavity 11, and moving electrode 2 is provided with elastic conducting contact pin 9, one end of the elastic conducting contact pin 9 is actively prolonged
Extend on stationary electrode 3 and be provided with movable contact 91 towards the side of stationary electrode 3, the stationary electrode 3 is towards being provided with stationary contact at movable contact 91
Point 31；The drive device for controlling moving electrode 2 and stationary electrode 3 mutually to connect, the driving are additionally provided with the lower chamber 12
Device includes direct current generator 4 and reduction gearing mechanism, and the reduction gearing mechanism is by worm screw 5, worm-gear toothing group 6, sector gear 7
Constituted with driving block 8；Wherein, the worm screw 5 is arranged in the drive shaft 41 of direct current generator 4, the worm-gear toothing group 6 and fan
Shape gear 7 is rotatably mounted in lower chamber 12, and worm screw 5 and sector gear 7 respectively with the worm gear of worm-gear toothing group 6 and straight
Gear engagement connection；The driving block 8 is slidably mounted in lower chamber 12, and is connected with sector gear 7, and
The position of its correspondence moving electrode 2 is provided with driving fixture block 81, and the driving fixture block 81, which is stretched into upper cavity 11 and blocked, to be flexibly connected
Piece 9, makes the movable contact 91 in elastic conducting contact pin 9 be slidably reciprocated with driving block 8, closes and separate with stationary contact 31, specific knot
Structure can be：The sector gear 7 is provided with positioned at the opposite end of tooth form and stirred on afterbody 71, the relevant position of driving block 8
Provided with bayonet socket 82 is stirred, the driving fixture block 81 is provided with bayonet socket 83 is installed, and the end of the elastic conducting contact pin 9 is stuck in installation bayonet socket
In 83, and driving fixture block 81, stir bayonet socket 82 and bayonet socket 83 and driving block 8 are installed and be integrally formed (such as：Integrated injection molding into
Type).During assembling, it is described stir afterbody 71 be actively stuck in stir in bayonet socket 82, drive driving block 8 in lower chamber 12 back and forth
Slide, the driving fixture block 81 is stretched into upper cavity 11, and the end of the elastic conducting contact pin 9 is stuck in the installation card of driving fixture block 81
In mouth 83, the movable contact 91 in elastic conducting contact pin 9 is slidably reciprocated with driving block 8, close and separate with stationary contact 31, simultaneously
Microswitch 10 in the triggering lower chamber 12 of driving block 8.
When intelligent electric energy meter sends reverse impulse driving, the drive shaft 41 of direct current generator 4 first is rotated backward, and drives snail
Bar 5 is rotated backward, and drives worm-gear toothing group 6 to rotate and the straight-tooth gear through worm-gear toothing group 6 drives sector gear 7 counterclockwise
Swing, then sector gear 7 is by stirring the movable contact 91 that afterbody 71 drives driving block 8 to slide, driven in elastic conducting contact pin 9
Separated with stationary contact 31, realize disconnection (non-energized)；On the contrary, when intelligent electric energy meter sends direct impulse driving, first directly
The drive shaft 41 of stream motor 4 is rotated forward, and is driven worm screw 5 to rotate forward, is driven worm-gear toothing group 6 to rotate and through worm-gear toothing
The straight-tooth gear of group 6 drives the clockwise oscillation of sector gear 7, and then sector gear 7 drives driving block 8 by stirring afterbody 71
Slide, drive elastic conducting contact pin 9 to reset, the movable contact 91 in elastic conducting contact pin 9 closed with stationary contact 31, realized energization.
So, double-layer three-phase electric motor type relay described in the utility model is by having adopted worm-and-wheel reduction gearing mechanism
It can improve anti-constant under the premise of the power-saving technology of holding contact state after keeping original on-load switch pulsed drive and action
One times of magnetic interference ability, eliminates contact bounce phenomenon, increases contact force, contact resistance is small, stablize constant, so as to ensure
The safety and reliability of the built-in on-load switch of intelligent electric energy meter, and the component of worm-and-wheel reduction gearing mechanism
Few, simple in construction, difficulty of processing and cost are substantially reduced, and packaging efficiency is also significantly improved, while also can further improve relay
The closure and separation control accuracy and closure and separation reaction speed of device.
In addition, the inside of upper cavity 11 is provided with limiting plate 13, the limit close to the end of drive shaft 41 of direct current generator 4
Position plate 13 is integrally formed with housing 1.When the utility model electric motor type relay carries out closure control process, limiting plate 13 is effective
To the restriction of the drive shaft 41 of direct current generator 4 in the axial direction, it is to avoid under the interaction of worm screw 5 and worm-gear toothing group 6
Make the excessively axial movement of drive shaft 41 and cause the problem of direct current generator 4 is damaged, service life is longer, and performance is more stable, more may be used
Lean on.
Moreover, the sector gear 7 is provided with the gear area 72 that the straight-tooth gear engagement with worm-gear toothing group 6 is connected, and
It is described to stir afterbody 71, gear area 72, upper skidding area positioned at the upper skidding area 73 and lower skidding area 74 of the upper and lower ends of gear area 72
73 and lower skidding area 74 be integrally formed with sector gear 7.Stationary contact on the movable contact 91 in elastic conducting contact pin 9 and stationary electrode 3
The elastic force effect of the still flexible guide-joining plate 9 after closure of point 31, now the straight-tooth gear of worm-gear toothing group 6 is departing from sector
The gear area 72 of wheel 7, skids in upper skidding area 73 and rotates；When movable contact 91 and the stationary contact 31 of elastic conducting contact pin 9 are separated
The reverse elastic force of still flexible guide-joining plate 9 is made after (break distance between movable contact 91 and stationary contact 31 is about 1.5 millimeters)
With now the straight-tooth gear of worm-gear toothing group 6 skids in lower skidding area 74 and turned departing from the gear area 72 of sector gear 7
It is dynamic.So, you can avoid the stall of motor 4, the strong impact power of the generation of direct current generator 4 is effectively prevent by deceleration transmission machine
Structure is damaged, and relay is more robust, the life-span is longer.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations are also considered as protection domain of the present utility model.
Claims (7)
1. a kind of double-layer three-phase electric motor type relay, includes housing (1), three groups of moving electrodes (2) and stationary electrode (3)；The shell
Body (1) includes upper cavity (11) and lower chamber (12), and one end of three groups of moving electrodes (2) and stationary electrode (3) is stretched into, is fixed on
In upper cavity (11), and moving electrode (2) is provided with elastic conducting contact pin (9), and one end of the elastic conducting contact pin (9) actively extends
Movable contact (91) is provided with to stationary electrode (3) and towards stationary electrode (3) side, the stationary electrode (3) is towards movable contact (91) place
Provided with stationary contact (31)；The drive for controlling moving electrode (2) and stationary electrode (3) mutually to connect is additionally provided with the lower chamber (12)
Dynamic device, the drive device includes direct current generator (4) and reduction gearing mechanism, it is characterised in that：The reduction gearing mechanism
It is made up of worm screw (5), worm-gear toothing group (6), sector gear (7) and driving block (8)；Wherein, the worm screw (5) is arranged on straight
In the drive shaft (41) for flowing motor (4), the worm-gear toothing group (6) and sector gear (7) are rotatably mounted at lower chamber
(12) in, and worm screw (5) and sector gear (7) are connected with worm gear and the straight-tooth gear engagement of worm-gear toothing group (6) respectively；It is described
Driving block (8) is slidably mounted in lower chamber (12), and is connected with sector gear (7), and its correspondence moving electrode
(2) position is stretched into upper cavity (11) provided with driving fixture block (81), the driving fixture block (81) and blocks elastic conducting contact pin
(9) movable contact (91) in elastic conducting contact pin (9) is slidably reciprocated with driving block (8), close and divide with stationary contact (31)
From while the microswitch (10) in driving block (8) triggering lower chamber (12).
2. double-layer three-phase electric motor type relay according to claim 1, it is characterised in that：The sector gear (7) is located at tooth
The opposite end of shape is described to stir provided with bayonet socket (82) is stirred provided with afterbody (71), driving block (8) relevant position is stirred
Afterbody (71), which is actively stuck in, to be stirred in bayonet socket (82), drives driving block (8) to be slidably reciprocated in lower chamber (12).
3. double-layer three-phase electric motor type relay according to claim 2, it is characterised in that：The driving fixture block (81) is provided with peace
Be loaded mouth (83), and the end of the elastic conducting contact pin (9) is stuck in installation bayonet socket (83).
4. double-layer three-phase electric motor type relay according to claim 3, it is characterised in that：It is described to drive fixture block (81), stir
Bayonet socket (82) and installation bayonet socket (83) are integrally formed with driving block (8).
5. the double-layer three-phase electric motor type relay according to claim 1 or 2 or 3 or 4, it is characterised in that：The upper cavity
(11) internal drive shaft (41) end close to direct current generator (4) is provided with limiting plate (13), the limiting plate (13) and housing
(1) it is integrally formed.
6. the double-layer three-phase electric motor type relay according to Claims 2 or 3 or 4, it is characterised in that：The sector gear (7)
Provided with the gear area (72) being connected with the engagement of the straight-tooth gear of worm-gear toothing group (6), and positioned at the upper of gear area (72) two ends
Skidding area (73) and lower skidding area (74).
7. double-layer three-phase electric motor type relay according to claim 6, it is characterised in that：It is described to stir afterbody (71), gear
Area (72), upper skidding area (73) and lower skidding area (74) are integrally formed with sector gear (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027011.8U CN206363962U (en) | 2017-01-11 | 2017-01-11 | A kind of double-layer three-phase electric motor type relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027011.8U CN206363962U (en) | 2017-01-11 | 2017-01-11 | A kind of double-layer three-phase electric motor type relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363962U true CN206363962U (en) | 2017-07-28 |
Family
ID=59380758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720027011.8U Expired - Fee Related CN206363962U (en) | 2017-01-11 | 2017-01-11 | A kind of double-layer three-phase electric motor type relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206363962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240517A (en) * | 2017-07-04 | 2017-10-10 | 南京日新科技有限公司 | One kind combination coordinated type relay |
-
2017
- 2017-01-11 CN CN201720027011.8U patent/CN206363962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240517A (en) * | 2017-07-04 | 2017-10-10 | 南京日新科技有限公司 | One kind combination coordinated type relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20190111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |