CN205828286U - A kind of motor-driven relay - Google Patents
A kind of motor-driven relay Download PDFInfo
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- CN205828286U CN205828286U CN201620663649.6U CN201620663649U CN205828286U CN 205828286 U CN205828286 U CN 205828286U CN 201620663649 U CN201620663649 U CN 201620663649U CN 205828286 U CN205828286 U CN 205828286U
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Abstract
The utility model discloses a kind of motor-driven relay, be included in the rotating shaft of motor and install a worm screw, worm-gear toothing wheels, with worm engaging；One special shape gear engages with the gear parts of described worm-gear toothing wheels；One connecting rod is connected with special shape gear, and its other end is sleeved on a pushing block；Being provided with one on described pushing block and move spring shell fragment, described dynamic spring shell fragment and a movable contact riveting are fitted together；The correspondence of described movable contact position upwards is provided with a stationary contact, and described stationary contact is connected with a fixing static contact spring piece on the housing.Compared with prior art, the beneficial effects of the utility model are: motor drive mode improves the pressure of sound contact, toggle and dynamic spring elastic piece structure so that sound contact flexible contact, eliminate contact bounce, thus extend the electric life of contact and increase arc resistant ability.This utility model reduces relay volume, optimizes product structure, reduces manufacturing cost and improves product quality.
Description
Technical field
This utility model relates to a kind of relay, is particularly applied in intelligent electric energy meter as being switched on or switched off load
And by motor-driven relay.
Background technology
The most important function of intelligent electric energy meter takes control function exactly, and relay is that to realize this function most important
Element.
Being applied to the on-load switch in intelligent electric meter at present is magnetic latching relay mostly, according to State Grid Corporation of China to intelligence
Can analyze by ammeter components and parts fault statistics, magnetic latching relay is because of contact arc wear, the unstable and anti-outside of contact resistance
Stationary magnetic field deficiency causes the ratio of intelligent electric meter fault accounting in all components and parts the highest, and analyzing its weak point mainly has
The following aspects:
1, driven by balanced force type armature due to the contact action of magnetic latching relay, and the motion of armature is from opening
Position to make position along with being gradually reduced of the working gas gap of pole shoe, magnetic resistance also will be gradually reduced, and therefore electromagnetic attraction will
Being gradually increased, until armature is of completely closed with pole shoe, so the Guan Bi of contact is all accelerated motion every time, sound contact is in contact
Moment can produce contact bounce because of strong collision, and rebound results in big electric arc and holds arc constantly by scaling loss contact；In sound
During the release of contact, owing to when armature starts, speed is the lowest, current interruption initial velocity when causing sound contact to disconnect is very slow, can produce equally
Big electrical arc erosion contact.
2, being limited by volume, solenoid window area is limited, and therefore magnetomotive force can not be made too big, causes contact to be pressed
Power can not be too big, otherwise be unable to reach the requirement of low pressure action, cause contact resistance value bigger because the pressure of contact is little and
And unstable, bring the temperature rise that current loop is overall, easily cause burning table.
3, due to inside magnetic latching relay by electromagnetic system and be used for holding contact state permanent magnet constituted, its
The character of electromagnetic circuit and permanent magnetic circuits broadly falls into D.C. magnetic field, and the character in interference magnetic field constant with outside is identical, so easily
Disturbed by external constant magnetic field, caused the problems such as action disorder or contacts status upset, although can use at relay
The shell of additional ferrimagnet is shielded, and the effect of anti-external constant magnetic field interference is the most limited, it is impossible to reach international mark
Accurate grade, and add manufacturing cost, the ability of anti shock and vibration is the most poor simultaneously.
State Grid Corporation of China is to ensure the safety and reliability that intelligent electric meter runs, tailor Q/GDW
11179.8 2014 " electric energy meter components and parts technical specification the 8th part: on-load switch " standard, intelligent electric meter is used by this standard
Relay be proposed in terms of electrical endurance, contact resistance and anti-external constant magnetic field interference higher, clearly require, make
The magnetic latching relay that must be currently used in intelligent electric meter is extremely difficult to the requirement of this standard.
Utility model content
The purpose of this utility model is to provide a kind of motor-driven relay for the deficiencies in the prior art.
This utility model is by realizing by the following technical solutions.
Manufacturing and designing a kind of motor-driven relay, described relay includes:
One motor is set in a shell, the rotating shaft of described motor is provided with a worm screw, being provided above of described worm screw
Having upper steel axle, the lower section of described worm screw is provided with lower steel axle, and described upper steel axle and lower steel axle are individually fixed on described shell；
On described lower steel axle, worm-gear toothing wheels are installed, itself and described worm engaging；
One special shape gear, the gear parts of described special shape gear and described worm-gear toothing wheels are installed on described upper steel axle
Gear parts engages；
One connecting rod, one end of described connecting rod is sleeved on special shape gear, and the other end of described connecting rod is sleeved on a pushing block
On；Being provided with one on described pushing block and move spring shell fragment, described dynamic spring shell fragment and a movable contact riveting are fitted together, described dynamic spring shell fragment
The other end be fixed on and move on spring lead-out tablet, described dynamic spring lead-out tablet extends to outside described shell, as described movable contact
Externally connect end；
The correspondence of described movable contact position upwards is provided with a stationary contact, described stationary contact with fixing on the housing
A static contact spring piece connect, a part for described static contact spring piece extends to outside described shell, as the external connection of described stationary contact
End.
Being additionally provided with square opening in described pushing block, in square opening, accommodating dynamic spring shell fragment and the termination of buffer substrate tablet, described dynamic
Spring shell fragment and described buffer substrate tablet all have elasticity, and described dynamic spring shell fragment and described buffer substrate tablet are fitted together with movable contact riveting；Described
The structure of lower bifurcation on being arranged in buffer substrate tablet and described dynamic spring shell fragment square opening in described pushing block.
Described worm-gear toothing wheels are to be made up of worm gear portion and gear parts, and described worm gear portion and described gear parts are
The most upper and lower distributed architecture also has same axis hole, and wherein said worm gear portion is positioned at lower section, and described gear parts is positioned at
Side, described worm gear portion is in lower section and described worm engaging, and described gear parts engages up with described special shape gear.
The contact structure of described movable contact is double contact structure, the i.e. first movable contact and corresponding first stationary contact of the second movable contact
Point and the second stationary contact.
Compared with prior art, the beneficial effects of the utility model are: keeping original positive and negative pulse drive pattern
On the premise of, reduce relay volume, optimize product structure, due to bifurcated in employing toggle and pushing block
Dynamic spring elastic piece structure so that sound contact flexible contact, eliminates contact bounce, and described motor drive mode improves sound and touches
The pressure of point, makes the electric life of contact and arc resistant ability strengthen, is also beneficial to relay and realizes automated production, thus can drop
Low manufacturing cost and put forward high-quality concordance.
Accompanying drawing explanation
Below with accompanying drawing, this utility model is further detailed, but the embodiment in accompanying drawing do not constitute right
Any restriction of the present utility model.
Fig. 1 is the schematic front view of a kind of motor-driven relay of the present utility model；
Fig. 2 is the schematic perspective view of a kind of motor-driven relay of the present utility model；
Fig. 3 is the schematic perspective view in another direction of a kind of motor-driven relay of the present utility model.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is illustrated.
As shown in Figures 1 to 3, manufacturing and designing a kind of motor-driven relay, described relay includes:
One motor 1 is set in a shell 4, the rotating shaft of described motor 1 is provided with a worm screw 13, described worm screw 13 upper
Side is provided with steel axle 11, and the lower section of described worm screw 13 is provided with lower steel axle 15, and described upper steel axle 11 and lower steel axle 15 are solid respectively
On described shell 4；
Being provided with worm-gear toothing wheels 14 on described lower steel axle 15, it engages with described worm screw 13；
One special shape gear 12, the gear parts of described special shape gear 12 and described worm-gear toothing are installed on described upper steel axle 11
The gear parts engagement of wheels 14；
One connecting rod 10, one end of described connecting rod 10 is sleeved on special shape gear 12, and the other end of described connecting rod 10 is sleeved on
On one pushing block 8；Being provided with one on described pushing block 8 and move spring shell fragment 3, described dynamic spring shell fragment 3 and movable contact 7 riveting are contained in one
Rising, the other end of described dynamic spring shell fragment 3 is fixed on and moves on spring lead-out tablet 2, and described dynamic spring lead-out tablet 2 extends to described shell 4
Outside, externally connect end as described movable contact 7；
The correspondence of described movable contact 7 position upwards is provided with a stationary contact 5, described stationary contact 5 be fixed on described outside
A static contact spring piece 6 on shell 4 connects, and a part for described static contact spring piece 6 extends to outside described shell 4, as described stationary contact 5
Externally connect end.
Being additionally provided with square opening in described pushing block 8, in square opening, accommodating dynamic spring shell fragment 3 and the termination of buffer substrate tablet 9, described
Dynamic spring shell fragment 3 and described buffer substrate tablet 9 all have elasticity, described dynamic spring shell fragment 3 and described buffer substrate tablet 9 and are contained in one with movable contact 7 riveting
Rise；The structure of lower bifurcation on being arranged in described buffer substrate tablet 9 and the described dynamic spring shell fragment 3 square opening in described pushing block 8.
Described worm-gear toothing wheels 14 are to be made up of worm gear portion 14a and gear parts 14b, described worm gear portion 14a and institute
Stating gear parts 14b and for distributed architecture the most up and down and have same axis hole, wherein said worm gear portion 14a is positioned at lower section,
Described gear parts 14b is above, and described worm gear portion 14a engages with described worm screw 13 in lower section, described gear parts 14b
Engage up with described special shape gear 12.
The contact structure of described movable contact 7 is double contact structure, the i.e. first movable contact 7a and the second movable contact 7b correspondence
One stationary contact 5a and the second stationary contact 5b.
Motor 1 can use permanent magnetic brush motor, it would however also be possible to employ the motor of other forms.
In FIG, when intelligent electric energy meter sends direct impulse or repercussion pulsed drive, pulse signal is linked into described
On the both positive and negative polarity of permanent magnetic brush motor 1, order about described motor 1 and produce clockwise or counterclockwise, then by described worm screw 13,
Torque produced by described motor 1 is transmitted by described worm-gear toothing wheels 14 and described special shape gear 12 step by step, causes described different
Shape gear 12 swings up and down in the angle arranged, then by described connecting rod 10 and described pushing block 8, by described special shape gear 12
Swing be changed into the up and down motion of described pushing block 8, and then drive and be arranged on the described movable contact 7 on described dynamic spring shell fragment 3
Realize being switched on or switched off the purpose of load with the described stationary contact 5 on static contact spring piece described in opposite position 6.
In fig. 2, described worm-gear toothing wheels 14 are to be made up of worm gear portion 14a and gear parts 14b, described worm gear portion
14a and described gear parts 14b is concentric and upper and lower distributed architecture and has same axis hole, wherein said worm gear portion 14a
Being positioned at lower section, described gear parts 14b is above, and described worm gear portion 14a engages with described worm screw 13 in lower section, described tooth
Wheel part 14b engages up with described special shape gear 12, takes full advantage of space and reduces volume.
In Fig. 2 or Fig. 3, the contact structure of the present embodiment is double contact structure, and the arrangement of contact is varied, at this not
Enumerate.
In other embodiments, it is possible to be single contact structure, i.e. one the corresponding stationary contact structure of movable contact.
In figure 3, dynamic spring shell fragment 3 set in the present embodiment and buffer substrate tablet 9 are to be made up of elastomeric material, described dynamic spring
Shell fragment 3 and described buffer substrate tablet 9 left end are close to and are fitted together by the riveting of described movable contact 7, described dynamic spring shell fragment 3 and described buffering
The right end position of sheet 9 installs in the square opening in described pushing block 8 with the version of bifurcated, described dynamic spring shell fragment 3 and described
The plug-in mounting part of buffer substrate tablet 9 contacts the inner surface up and down of the square opening in described pushing block 8, described dynamic spring shell fragment 3 and institute respectively
Stating buffer substrate tablet 9 mid portion is to have certain interval, when described pushing block 8 moves up and down along diagram, and diverging reed
Structure can utilize pretension, the impact that alleviation action is brought, thus play the effect reducing contact bounce, touch to improve
The electric life of point and arc resistant ability.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to this reality
By novel thought, the most all will change, this specification content should not be construed as
To restriction of the present utility model.
Claims (4)
1. a motor-driven relay, it is characterised in that described relay includes:
One motor (1) is set in a shell (4), the rotating shaft of described motor (1) is provided with a worm screw (13), described worm screw
(13) be provided above steel axle (11), the lower section of described worm screw (13) is provided with lower steel axle (15), described upper steel axle (11)
It is individually fixed on described shell (4) with lower steel axle (15)；
Being provided with worm-gear toothing wheels (14) on described lower steel axle (15), it engages with described worm screw (13)；
One special shape gear (12), the gear parts of described special shape gear (12) and described worm gear are installed on described upper steel axle (11)
The gear parts engagement of gear train (14)；
One connecting rod (10), one end of described connecting rod (10) is sleeved on special shape gear (12), the other end set of described connecting rod (10)
It is contained on a pushing block (8)；Being provided with one on described pushing block (8) and move spring shell fragment (3), described dynamic spring shell fragment (3) is dynamic with one touches
Point (7) riveting is fitted together, and the other end of described dynamic spring shell fragment (3) is fixed on and moves on spring lead-out tablet (2), described dynamic spring lead-out tablet
(2) extend to outside described shell (4), externally connect end as described movable contact (7)；
The correspondence of described movable contact (7) position upwards is provided with a stationary contact (5), described stationary contact (5) be fixed on described
A static contact spring piece (6) on shell (4) connects, and a part for described static contact spring piece (6) extends to outside described shell (4), as institute
That states stationary contact (5) externally connects end.
Motor-driven relay the most according to claim 1, it is characterised in that:
Described pushing block is additionally provided with square opening in (8), accommodating dynamic spring shell fragment (3) and the termination of buffer substrate tablet (9), institute in square opening
State spring shell fragment (3) and described buffer substrate tablet (9) all has elasticity, described dynamic spring shell fragment (3) and described buffer substrate tablet (9) and movable contact
(7) riveting is fitted together；Described buffer substrate tablet (9) and described dynamic spring shell fragment (3) are arranged in the square opening in described pushing block (8)
The structure of upper lower bifurcation.
Motor-driven relay the most according to claim 1, it is characterised in that:
Described worm-gear toothing wheels (14) are to be made up of worm gear portion (14a) and gear parts (14b), described worm gear portion (14a)
For distributed architecture the most up and down and there is same axis hole with described gear parts (14b), wherein said worm gear portion (14a) position
In lower section, described gear parts (14b) is above, and described worm gear portion (14a) engages with described worm screw (13) in lower section, institute
State gear parts (14b) to engage up with described special shape gear (12).
Motor-driven relay the most according to claim 1, it is characterised in that:
The contact structure of described movable contact (7) is double contact structure, and the i.e. first movable contact (7a) and the second movable contact (7b) are corresponding
First stationary contact (5a) and the second stationary contact (5b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620663649.6U CN205828286U (en) | 2016-06-29 | 2016-06-29 | A kind of motor-driven relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620663649.6U CN205828286U (en) | 2016-06-29 | 2016-06-29 | A kind of motor-driven relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205828286U true CN205828286U (en) | 2016-12-21 |
Family
ID=57567043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620663649.6U Active CN205828286U (en) | 2016-06-29 | 2016-06-29 | A kind of motor-driven relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205828286U (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 |
-
2016
- 2016-06-29 CN CN201620663649.6U patent/CN205828286U/en active Active
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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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |