CN202796770U - Large-power relay - Google Patents
Large-power relay Download PDFInfo
- Publication number
- CN202796770U CN202796770U CN 201220498622 CN201220498622U CN202796770U CN 202796770 U CN202796770 U CN 202796770U CN 201220498622 CN201220498622 CN 201220498622 CN 201220498622 U CN201220498622 U CN 201220498622U CN 202796770 U CN202796770 U CN 202796770U
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- CN
- China
- Prior art keywords
- gear
- pushing block
- spring assembly
- power relay
- high power
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a large-power relay which comprises a base, a casing, a miniature direct-current motor, a gear reducing mechanism, a pushing block, a moving spring assembly and a fixed spring assembly. A rotating shaft of the miniature direct-current motor is linked with the primary stage of the gear reducing mechanism, the last stage of the gear reducing mechanism is movably connected with one end of the pushing block, and the other end of the pushing block is connected with the moving spring assembly. A gear cam assembly is arranged at the last stage of the gear reducing mechanism. A gear portion capable of being meshed with a former stage gear is arranged at one end of the gear cam assembly, and a cam portion is arranged at the other end of the gear cam assembly. A guide groove is arranged in the cam portion, and a first guide column arranged at one end of the pushing block is matched in the guide groove arranged in the cam portion so as to drive the pushing block to move when the gear cam assembly rotates. After adopting the structure, the large-power relay has the advantages of being large in contact pressure, reliable in contact, low in temperature rising, stable in performance, strong in impact resistance and short in acting time.
Description
Technical field
The utility model relates to the electric control system field, particularly relates to a kind of high power relay.
Background technology
A kind of high power relay of prior art, to adopt the motor-driven gear reducing gear, final-stage gear drive pushing block promotes movable contact spring and drives moving, fixed contact realizes that the contact opens and closes the relay of function, this relay adopts gear reduction, gear approaches and at the uniform velocity to promote movable contact spring and cover whole contact gap stroke, operate time is long, the contact causes resilience in closed latter stage because the engagement of local gear breaks away from moving spring reaction force, the risk that has shake, and in the contact switching process thrust center position occur with contact moving direction vertical direction on displacement, the influencing contactor registration, the well-known contact time is oversize, the factors such as contact chatter and contact skew will reduce electric life and the reliability of high power relay contact.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of high power relay is provided, driving pushing block by operative gear cam combining structure moves, and employing arranges between base and shell spacing about the pushing block moving process, contact force is large, contact is reliable so that this high power relay has, temperature rise is low, stable performance, strong shock resistance, the characteristics that operate time is short.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of high power relay comprises base, shell, DC micromotor, gear reduction, pushing block, movable spring assembly, quiet spring assembly; Base is connected with shell, and DC micromotor, gear reduction, pushing block, movable spring assembly, quiet spring assembly are contained in respectively on the base; The elementary of the rotating shaft of DC micromotor and gear reduction links, one end of the final stage of gear reduction and pushing block is movably connected and connects, the other end of pushing block is connected with movable spring assembly, and movable spring assembly and quiet spring assembly are in respectively the position of corresponding matching; The final stage of described gear reduction is the gear cam assemblies; One end of described gear cam assemblies is made as the wheel toothed portion that can be meshed with the prime gear, the other end is made as cam portion, in cam portion, be provided with guide groove, end at pushing block is provided with the first guide pillar, the first guide pillar of pushing block is engaged in the guide groove of gear cam assemblies, moves to drive pushing block when the gear cam assemblies is rotated.
Described guide groove is made of the second groove section away from the radiuses such as the first groove Duan He of the center of rotation of gear cam assemblies gradually.
The bottom of described base is provided with the second guide pillar, is provided with in the enclosure the 3rd guide pillar, and the up and down two ends of described pushing block are against respectively between the second guide pillar of the 3rd guide pillar of shell and base.
Described gear reduction also comprises the first gear, the first duplicate gear and the second duplicate gear, the first gear is connected with the rotating shaft of DC micromotor, the first gear is meshed with the gear wheel of the first duplicate gear, the pinion of the first duplicate gear is meshed with the gear wheel of the second duplicate gear, and the pinion of the second duplicate gear is meshed with the wheel toothed portion of described gear cam assemblies.
Described movable spring assembly comprises elastic spring, elasticity arculae group, moving contact and moving spring leading-out terminal, one end of elastic spring is connected with pushing block, the other end of elastic spring is connected with an end of elasticity arculae group, the other end of elasticity arculae group is connected with an end of moving spring leading-out terminal, and moving contact is fixed on an end of elasticity arculae group.
The other end of described pushing block is provided with slit, and an end of described elastic spring is stuck in the slit of pushing block.
The interlude of described moving spring leading-out terminal is provided with the copper-manganese sheet as sample resistance.
The beneficial effects of the utility model are to move, can realize under the identical rotating speed of gear owing to adopted the gear cam assemblies to drive pushing block, cam promotes, push card moves larger stroke, realizes the quick-make of contact, reaches the purpose that reduces operate time; Owing to adopted in the bottom of base and be provided with the second guide pillar, be provided with in the enclosure the 3rd guide pillar, the up and down two ends of described pushing block are against respectively between the second guide pillar of the 3rd guide pillar of shell and base, make the stroke of push card be limited in doing straight reciprocating motion in the cavity between base and the shell, do not have the skew of vertical direction, closing of contact registration is high; Because the guide groove of gear cam assemblies is made of the second groove section away from the radiuses such as the first groove Duan He of the center of rotation of gear cam assemblies gradually, this on cam curve one section stroke that waits radius of closed tail end design, the stroke that is gear rotating cam push card is constant, can effectively avoid moving resilience jitter problem when latter stage, gear broke away from engagement.
Below in conjunction with drawings and Examples the utility model is described in further detail; But a kind of high power relay of the present utility model is not limited to embodiment.
Description of drawings
Fig. 1 is the organigram of the utility model (not casing);
Fig. 2 is the organigram of the utility model (contact full open position);
Fig. 3 is the organigram of the utility model (the complete closure state in contact);
Fig. 4 is gear cam assemblies of the present utility model (contact full open position) schematic diagram that matches with pushing block;
Fig. 5 is gear cam assemblies of the present utility model (the complete closure state in the contact) schematic diagram that matches with pushing block;
Fig. 6 is the organigram of gear cam assemblies of the present utility model;
Fig. 7 is the organigram of pushing block of the present utility model;
Fig. 8 is the organigram of elasticity arculae group of the present utility model;
Fig. 9 is the organigram of moving spring leading-out terminal of the present utility model.
Embodiment
Embodiment, shown in accompanying drawing, a kind of high power relay of the present utility model comprises base 1, shell 2, DC micromotor 4, gear reduction 3, pushing block 5, movable spring assembly 6, quiet spring assembly 7; Base 1 is connected with shell 2, and DC micromotor 4, gear reduction 3, pushing block 5, movable spring assembly 6, quiet spring assembly 7 are contained in respectively on the base 1; The rotating shaft of DC micromotor 4 and the elementary of gear reduction 3 link, one end of the final stage of gear reduction 3 and pushing block 5 is movably connected and connects, the other end of pushing block 5 is connected with movable spring assembly 6, and movable spring assembly 6 and quiet spring assembly 7 are in respectively the position of corresponding matching; The final stage of described gear reduction is gear cam assemblies 8; One end of described gear cam assemblies 8 is made as the wheel toothed portion 81 that can be meshed with the prime gear, the other end is made as cam portion 82, in cam portion 82, be provided with guide groove 83, end at pushing block 5 is provided with the first guide pillar 51, the first guide pillar 51 of pushing block is engaged in the guide groove 83 of gear cam assemblies, moves to drive pushing block 5 when gear cam assemblies 8 is rotated.
Described guide groove 83 is by gradually away from the first groove section 831 of the center of rotation of gear cam assemblies with wait the second groove section 832 of radius to consist of.Wherein, the first groove section 831 also is divided into contact gap section and contact tracking section.
The bottom of described base 1 is provided with the second guide pillar 11, is provided with the 3rd guide pillar 21 in shell 2, and the up and down two ends of described pushing block 5 are against respectively between the second guide pillar 11 of the 3rd guide pillar 21 of shell and base.
Described gear reduction 3 also comprises the first gear 31, the first duplicate gear 32 and the second duplicate gear 33, the first gear 31 is connected with the rotating shaft of DC micromotor 4, the first gear 31 is meshed with the gear wheel of the first duplicate gear 32, the pinion of the first duplicate gear 32 is meshed with the gear wheel of the second duplicate gear 33, and the pinion of the second duplicate gear 33 is meshed with the wheel toothed portion 81 of described gear cam assemblies; Wherein, the first gear 31(is primary pinion) be to be fixed in the rotating shaft of DC micromotor 4, be respectively matched in clearance between the first duplicate gear 32, the second duplicate gear 33 and gear cam assemblies (being final-stage gear) and the corresponding rotating shaft, like this, the rotating shaft of DC micromotor 4 can drive the first gear 31 and rotate when rotating, and the first duplicate gear 32, the second duplicate gear 33 and gear cam assemblies be when rotating respectively, and its corresponding rotating shaft is not rotated.
Described movable spring assembly 6 comprises elastic spring 61, elasticity arculae group 62, moving contact 63 and moving spring leading-out terminal 64, one end of elastic spring 61 is connected with pushing block 5, the other end of elastic spring 61 is connected with an end of elasticity arculae group 62, the other end of elasticity arculae group 62 is connected with an end of moving spring leading-out terminal 64, and moving contact 63 is fixed on an end of elasticity arculae group 62.
The other end of described pushing block 5 is provided with slit 52, and an end of described elastic spring 61 is stuck in the slit 52 of pushing block.
The interlude of described moving spring leading-out terminal 64 is provided with the copper-manganese sheet 641 as sample resistance.
Described quiet spring assembly 7 comprises fixed contact 71 and quiet spring leading-out terminal 72.
Shell 2 is to be installed together by buckle and base 1.
Input in DC micromotor 4 also is parallel with bi-directional voltage stabilizing diode 41, and the pin of bi-directional voltage stabilizing diode 41 is drawn as contact pin, also is the input leading foot of DC micromotor 4.
Apply direct impulse voltage at the input leading foot, DC micromotor 4 forward rotation, drive the first gear 31 forward rotation that interference is installed on the output shaft, the gear wheel forward rotation of the first duplicate gear 32 of 31 drives of the first gear and its engagement, the pinion drive of the first duplicate gear 32 and the gear wheel forward rotation of the second duplicate gear 33 of its engagement, the pinion of the second duplicate gear 33 drives and its meshed gears cam assemblies 8 forward rotation, gear cam assemblies 8 is rotated and is forced the first guide pillar 51 stressed motions of push card 5 in guide groove 83, push card 5 is subject to base 1, the spacing elastic spring 61 drive moving contacts 63 that can only promote forward of shell 2 move to fixed contact 71, after reaching the complete closure in contact, first gear teeth of the wheel toothed portion 81 of the pinion of the second duplicate gear 33 and gear cam assemblies 8 break away from engagement, self-locking holding contact closure state realizes that control loop is closed.Otherwise, apply reverse impulse by the input leading foot to electrical micro-machine, DC micromotor 4 counter-rotating drives the first gear 31, the first duplicate gear 32, the second duplicate gear 33, gear cam assemblies 8 are reversed respectively, the direction that gear cam assemblies 8 drive push card 5 disconnect to the contact moves, after reaching the contact and disconnecting fully, last gear teeth of the wheel toothed portion 81 of the pinion of the second duplicate gear 33 and gear cam assemblies 8 break away from engagement, self-locking holding contact off-state.
Above-described embodiment only is used for further specifying a kind of high power relay of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection range of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (7)
1. a high power relay comprises base, shell, DC micromotor, gear reduction, pushing block, movable spring assembly, quiet spring assembly; Base is connected with shell; DC micromotor, gear reduction, pushing block, movable spring assembly, quiet spring assembly are contained in respectively on the base; The elementary of the rotating shaft of DC micromotor and gear reduction links, one end of the final stage of gear reduction and pushing block is movably connected and connects, the other end of pushing block is connected with movable spring assembly, and movable spring assembly and quiet spring assembly are in respectively the position of corresponding matching; It is characterized in that: the final stage of described gear reduction is the gear cam assemblies; One end of described gear cam assemblies is made as the wheel toothed portion that can be meshed with the prime gear, the other end is made as cam portion, in cam portion, be provided with guide groove, end at pushing block is provided with the first guide pillar, the first guide pillar of pushing block is engaged in the guide groove of gear cam assemblies, moves to drive pushing block when the gear cam assemblies is rotated.
2. high power relay according to claim 1 is characterized in that: described guide groove is made of the second groove section away from the radiuses such as the first groove Duan He of the center of rotation of gear cam assemblies gradually.
3. high power relay according to claim 1, it is characterized in that: the bottom of described base is provided with the second guide pillar, be provided with in the enclosure the 3rd guide pillar, the up and down two ends of described pushing block are against respectively between the second guide pillar of the 3rd guide pillar of shell and base.
4. high power relay according to claim 1, it is characterized in that: described gear reduction also comprises the first gear, the first duplicate gear and the second duplicate gear, the first gear is connected with the rotating shaft of DC micromotor, the first gear is meshed with the gear wheel of the first duplicate gear, the pinion of the first duplicate gear is meshed with the gear wheel of the second duplicate gear, and the pinion of the second duplicate gear is meshed with the wheel toothed portion of described gear cam assemblies.
5. high power relay according to claim 1, it is characterized in that: described movable spring assembly comprises elastic spring, elasticity arculae group, moving contact and moving spring leading-out terminal, one end of elastic spring is connected with pushing block, the other end of elastic spring is connected with an end of elasticity arculae group, the other end of elasticity arculae group is connected with an end of moving spring leading-out terminal, and moving contact is fixed on an end of elasticity arculae group.
6. high power relay according to claim 5, it is characterized in that: the other end of described pushing block is provided with slit, and an end of described elastic spring is stuck in the slit of pushing block.
7. high power relay according to claim 5, it is characterized in that: the interlude of described moving spring leading-out terminal is provided with the copper-manganese sheet as sample resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498622 CN202796770U (en) | 2012-09-26 | 2012-09-26 | Large-power relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498622 CN202796770U (en) | 2012-09-26 | 2012-09-26 | Large-power relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796770U true CN202796770U (en) | 2013-03-13 |
Family
ID=47823975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220498622 Expired - Lifetime CN202796770U (en) | 2012-09-26 | 2012-09-26 | Large-power relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097314A (en) * | 2014-05-07 | 2015-11-25 | 南京日新科技有限公司 | Built-in load switch for intelligent electric meter |
| CN104154183B (en) * | 2014-07-31 | 2017-01-11 | 苏州市弘达仪表厂(普通合伙) | Speed reducing gear group with self-locking function and electric actuating mechanism |
-
2012
- 2012-09-26 CN CN 201220498622 patent/CN202796770U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097314A (en) * | 2014-05-07 | 2015-11-25 | 南京日新科技有限公司 | Built-in load switch for intelligent electric meter |
| CN104154183B (en) * | 2014-07-31 | 2017-01-11 | 苏州市弘达仪表厂(普通合伙) | Speed reducing gear group with self-locking function and electric actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |