CN203521327U - Motor type single-phase relay - Google Patents
Motor type single-phase relay Download PDFInfo
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- CN203521327U CN203521327U CN201320654937.1U CN201320654937U CN203521327U CN 203521327 U CN203521327 U CN 203521327U CN 201320654937 U CN201320654937 U CN 201320654937U CN 203521327 U CN203521327 U CN 203521327U
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Abstract
The utility model relates to a motor type single-phase relay which comprises a shell which is internally provided with a group of electrodes which are formed by a moving electrode and a static electrode and a driving device used for controlling the moving electrode and the static electrode to be connected. The driving device comprises a DC motor, a speed reduction transmission mechanism and a power pull rod. The speed reduction transmission mechanism is formed by a first small gear which is connected with the DC motor, a first large gear which is engaged with the first small gear, a second small gear which is intgratedly formed with the first large gear, a sector gear which is engaged with the second small gear and a connection rod. Two ends of the connection rod are connected with the sector gear and the power pull rod respectively. The static electrode is fixed on the shell, and one end of the static electrode extends out of the shell. One end of the moving electrode is fixed on the power pull rod, and the other end of the moving electrode is fixed on the shell and extends out of the shell. The single-phase relay has the advantages of large contact pressure of a contact, lower contact resistance, large contact spacing, small electric arc, vibration prevention and reliable action, the structure is more simplified through the unique gear speed reduction transmission structure, and the assembly of the relay is convenient.
Description
Technical field
The utility model belongs to relay technical field, particularly a kind of electric motor type one-phase relay.
Background technology
Relay is a kind of electronic devices and components of automation field extensive use, general relay controller all adopts solenoid and permeability magnetic material to make electromagnet, utilize electromagnetic induction principle to pull electrode to complete switch motion, this relay coil need be switched on always can maintained switch adhesive; In electronic electric energy meter, widely used magnetic latching relay switch is to carry out maintained switch adhesive (only energising when moving of solenoid by permanent magnet suction, after having moved, do not need energising), but because of permanent magnet suction limited, contact Contact pressure is little, contact resistance is large, contact temperature rise, and contact spacing is little, easily produce electric arc, there is the problem of easily burning contact in magnetic latching relay switch in electronic electric energy meter is used.
Utility model content
The technical problems to be solved in the utility model is: the motor-driven powerful one-phase relay that provides a kind of applicable electronic electric energy meter to use, the contact contact of this one-phase relay is large, contact resistance is low, contact spacing is large, electric arc is little, anti-vibration, reliable in action, its unique gear reduction drive mechanism is more simplified relay mechanism, and it is convenient to assemble.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
An electric motor type one-phase relay, includes housing, is provided with one group of electrode being comprised of moving electrode and stationary electrode in described housing, and the drive unit mutually connecting for controlling described moving electrode and stationary electrode; Described drive unit comprises direct current machine, reduction gearing mechanism and power pull bar, described reduction gearing mechanism mainly by the first pinion being connected with described direct current machine, with the first gear of the first pinion engagement, with integrated the second pinion of first gear, form with sector gear and the connecting rod of the second pinion engagement, and the two ends of connecting rod are connected with power pull bar with sector gear respectively; Described stationary electrode is fixed on housing, and one end stretches out outside housing, and described moving electrode one end is fixed on power pull bar, and the other end is fixed on housing and stretches out outside housing.
As the preferred technical scheme of the utility model, the arc rim of described sector gear be provided with the teeth region that drives with described the second pinion engagement, on skid region and under the region of skidding, skid on described region and under the region of skidding lay respectively at the two ends up and down in described teeth region.
As the preferred technical scheme of the utility model, described sector gear is 1/4th gears.
As the preferred technical scheme of the utility model, in described housing, be provided with the first pinion stand and the second pinion stand, the both sides of described the first pinion stand and the second pinion stand are respectively equipped with the first button bit and the second button bit, the 3rd button bit and the 4th button bit; Described integrated first gear and the second pinion are located in the first pinion stand, and the two ends of its gear shaft are stuck in the first button bit and the second button bit; Described sector gear is located in the second pinion stand, and the two ends of its gear shaft are stuck in the 3rd button bit and the 4th button bit.
As the preferred technical scheme of the utility model, described first gear and the second pinion and its gear shaft integrated injection molding, described sector gear and its gear shaft integrated injection molding.
As the preferred technical scheme of the utility model, described stationary electrode is fixed in housing, and is provided with fixed contact towards moving electrode one side; Described moving electrode is mainly comprised of the electroconductive elastic sheet assembly and the keeper electrode sheet that stack together, one end of described electroconductive elastic sheet assembly is fixed on power pull bar, and be provided with the moving contact with the contact corresponding to fixed contact of separable mode, the other end of described electroconductive elastic sheet assembly is connected with the one end of keeper electrode sheet in being fixed on housing, and the other end of described keeper electrode sheet stretches out outside housing.
As the preferred technical scheme of the utility model, one end that described electroconductive elastic sheet assembly is provided with moving contact is also provided with spring plate, one end of described spring plate and electroconductive elastic sheet assembly are connected and fixed, the other end is bent to parallel with electroconductive elastic sheet assembly, and is stuck in the lump on the draw-in groove that power pull bar is provided with electroconductive elastic sheet assembly.
As the preferred technical scheme of the utility model, described electroconductive elastic sheet assembly is provided with the precompressed elastic force U-shaped stack portion consistent with moving contact closing direction.
The beneficial effects of the utility model are:
The reduction gearing mechanism of one-phase relay described in the utility model is by being fixed in housing under the first button bit, the second button bit, the 3rd button bit and the 4th button bit acting in conjunction, without parts such as any screws, be fixed, simple in structure, it is convenient to assemble, the first gear of integrated molding, the second pinion and its gear shaft, and the sector gear of integrated molding and gear shaft further simplify the structure.
In addition, the transmission mechanism that skids that the utility model is provided with is completely closed or disconnect backgear completely and skid in contact, direct current machine can remain in operation, and has relaxed the requirement to drive current width in drive circuit, has also improved useful life and the functional reliability of relay simultaneously.
Accompanying drawing explanation
Fig. 1 is that the contact separation of electric motor type one-phase relay is the plan structure schematic diagram of non-power status described in the utility model embodiment;
Fig. 2 be described in Fig. 1 electric motor type one-phase relay along the sectional structure schematic diagram of A-A;
Fig. 3 is that the closing of contact of electric motor type one-phase relay is the plan structure schematic diagram of "on" position described in the utility model embodiment;
Fig. 4 be described in Fig. 3 electric motor type one-phase relay along the sectional structure schematic diagram of B-B;
The structural representation that Fig. 5 is the second pinion and sector gear engagement in Fig. 3, skid.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Figures 1 to 5, the electric motor type one-phase relay described in the present embodiment includes housing 6, is provided with one group of electrode being comprised of moving electrode 1 and stationary electrode 2 in described housing, and the drive unit mutually connecting for controlling moving electrode 1 and stationary electrode 2; Described drive unit comprises direct current machine 3, reduction gearing mechanism and power pull bar 5, described reduction gearing mechanism mainly by the first pinion 41 being connected with direct current machine 3, with the first gear 42 of the first pinion 41 engagement, with integrated the second pinion 43 of first gear 42, form with sector gear 44 and the connecting rod 45 of the second pinion 43 engagements, and the two ends of connecting rod 45 are rotationally connected with sector gear 44 and power pull bar 5 by the first power transmission shaft 451 and second driving shaft 452 respectively; Stationary electrode 2 is fixed on housing 6, and one end stretches out outside housing 6, and moving electrode 1 one end is fixed on power pull bar 5, and the other end is fixed on housing 6 and stretches out outside housing 6.
In housing 6 described in the present embodiment, be provided with the first pinion stand 61 and the second pinion stand 62, the both sides of described the first pinion stand 61 and the second pinion stand 62 are respectively equipped with the first button bit 63 and the second button bit 64, the 3rd button bit 65 and the 4th button bit 66; Integrated first gear 42 and the second pinion 43 are located in the first pinion stand 61, and the two ends of its gear shaft 46 are stuck in the first button bit 63 and the second button bit 64; Sector gear 44 is located in the second pinion stand 62, and the two ends of its gear shaft 47 are stuck in the 3rd button bit 65 and the 4th button bit 66; And first gear 42 and the second pinion 43 and its gear shaft integrated injection molding, sector gear 44 and its gear shaft integrated injection molding.The both sides of described the first pinion stand 61 and the second pinion stand 62 are respectively equipped with the end for confession gear shaft 46 of longitudinal design and slip into the gathering sill (figure does not show) that the first button bit 63 and second is detained button bit 64, and the gathering sill (not showing in figure) that slips into the 3rd button bit 65 and the 4th button bit 66 for the end of gear shaft 47, described gathering sill lower end first button bit 63, second button bit 64, three button bit 65 corresponding with it is connected with the 4th button bit 66, and it is easier to install.
One end that electroconductive elastic sheet assembly 11 described in the present embodiment is provided with moving contact 13 is also provided with spring plate 14, one end of described spring plate 14 and electroconductive elastic sheet assembly 11 are connected and fixed, the other end is bent to parallel with electroconductive elastic sheet assembly 11, and is stuck in the lump on the draw-in groove 51 that power pull bar 5 is provided with electroconductive elastic sheet assembly 11.Described electroconductive elastic sheet assembly 11 is provided with the precompressed elastic force U-shaped stack portion 15 consistent with moving contact 13 closing directions.
Operation principle:
When contact is during in off-state, direct current machine 3 adds positive pulse electric current, direct current machine 3 forwards, promote successively the first pinion 41, first gear 42, the second pinion 43 and sector gear 44, then the first power transmission shaft 451 that sector gear 44 promotes on it, the first power transmission shaft 451 promotes connecting rod 45, connecting rod 45 promotes second driving shaft 452, second driving shaft 452 propulsion power pull bars 5 move left, make moving contact on moving electrode 1 13 and the fixed contact 21 on stationary electrode 2 after closure, still have the elastic force effect of electroconductive elastic sheet assembly 11 and spring plate 14, now the second pinion 43 has departed from the teeth region 441 of sector gear 44, be positioned at the region 442 of the skidding rotation of skidding, sector gear 44 no longer meshes with the second pinion 43.When positive pulse electric current finishes, direct current machine 3 stops (the second pinion 43 stops operating), and power pull bar 5 again meshes sector gear 44 and the second pinion 43 through connecting rod 45 under the reverse elastic force effect of spring plate 14.Now, because the speed reducing ratio of reduction gearing mechanism is very large, the elastic force of spring plate 14 is far from enough to promote the second pinion 43, and sector gear 44 is realized self-locking.
On the contrary, direct current machine 3 adds negative pulse electric current, direct current machine 3 oppositely promotes the first pinion 41, first gear 42, the second pinion 43, sector gear 44 and connecting rod 45, and connecting rod 45 propulsion power pull bars 5 move to the right, and moving contact 13 and fixed contact 21 are separated.When the break distance between moving contact 13 and fixed contact 21 is about 1.5 millimeters, the second pinion 43 has departed from the teeth region 441 of sector gear 44, the region 443 of skidding under the being positioned at rotation of skidding, sector gear 44 no longer with the second pinion 43 engagements.When negative pulse electric current finishes, direct current machine 3 stops (the second pinion 43 stops operating), and power pull bar 5 again meshes sector gear 44 and the second pinion 43 through connecting rod 45 under electroconductive elastic sheet assembly 11 elastic force effect left; Now, because the speed reducing ratio of reduction gearing mechanism is very large, the elastic force of electroconductive elastic sheet assembly 11 is far from enough to promote the second pinion 43, and sector gear 44 is realized self-locking.
Described the second pinion 43, sector gear 44, connecting rod 45 form the transmission mechanism that skids of this relay, because the deceleration of gear reduction transmission mechanism has increased the moment of torsion of sector gear 44, make connecting rod 45 have larger thrust to promote moving electrode 1 action, thereby reduced the contact resistance between two contacts, improved the reliability of relay work.
The utility model has solved problem that large current conditions lower contact easily burns out and the antivibration problem of relay, has improved reliability and the useful life of relay work.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (8)
1. an electric motor type one-phase relay, is characterized in that: includes housing, in described housing, is provided with one group of electrode being formed by moving electrode and stationary electrode, and the drive unit mutually connecting for controlling described moving electrode and stationary electrode; Described drive unit comprises direct current machine, reduction gearing mechanism and power pull bar, described reduction gearing mechanism mainly by the first pinion being connected with described direct current machine, with the first gear of the first pinion engagement, with integrated the second pinion of first gear, form with sector gear and the connecting rod of the second pinion engagement, and the two ends of connecting rod are connected with power pull bar with sector gear respectively; Described stationary electrode is fixed on housing, and one end stretches out outside housing, and described moving electrode one end is fixed on power pull bar, and the other end is fixed on housing and stretches out outside housing.
2. electric motor type one-phase relay according to claim 1, it is characterized in that: the arc rim of described sector gear be provided with the teeth region that drives with described the second pinion engagement, on skid region and under the region of skidding, skid on described region and under the region of skidding lay respectively at the two ends up and down in described teeth region.
3. electric motor type one-phase relay according to claim 2, is characterized in that: described sector gear is 1/4th gears.
4. according to the electric motor type one-phase relay described in claim 1 or 2 or 3, it is characterized in that: in described housing, be provided with the first pinion stand and the second pinion stand, the both sides of described the first pinion stand and the second pinion stand are respectively equipped with the first button bit and the second button bit, the 3rd button bit and the 4th button bit; Described integrated first gear and the second pinion are located in the first pinion stand, and the two ends of its gear shaft are stuck in the first button bit and the second button bit; Described sector gear is located in the second pinion stand, and the two ends of its gear shaft are stuck in the 3rd button bit and the 4th button bit.
5. electric motor type one-phase relay according to claim 4, is characterized in that: described first gear and the second pinion and its gear shaft integrated injection molding, described sector gear and its gear shaft integrated injection molding.
6. according to the electric motor type one-phase relay described in claim 1 or 2 or 3, it is characterized in that: described stationary electrode is fixed in housing, and be provided with fixed contact towards moving electrode one side; Described moving electrode is mainly comprised of the electroconductive elastic sheet assembly and the keeper electrode sheet that stack together, one end of described electroconductive elastic sheet assembly is fixed on power pull bar, and be provided with the moving contact with the contact corresponding to fixed contact of separable mode, the other end of described electroconductive elastic sheet assembly is connected with the one end of keeper electrode sheet in being fixed on housing, and the other end of described keeper electrode sheet stretches out outside housing.
7. electric motor type one-phase relay according to claim 6, it is characterized in that: one end that described electroconductive elastic sheet assembly is provided with moving contact is also provided with spring plate, one end of described spring plate and electroconductive elastic sheet assembly are connected and fixed, the other end is bent to parallel with electroconductive elastic sheet assembly, and is stuck in the lump on the draw-in groove that power pull bar is provided with electroconductive elastic sheet assembly.
8. electric motor type one-phase relay according to claim 6, is characterized in that: described electroconductive elastic sheet assembly is provided with the precompressed elastic force U-shaped stack portion consistent with moving contact closing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654937.1U CN203521327U (en) | 2013-10-23 | 2013-10-23 | Motor type single-phase relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654937.1U CN203521327U (en) | 2013-10-23 | 2013-10-23 | Motor type single-phase relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521327U true CN203521327U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654937.1U Expired - Fee Related CN203521327U (en) | 2013-10-23 | 2013-10-23 | Motor type single-phase relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914336A (en) * | 2015-06-01 | 2015-09-16 | 苏州市华安普电力工程有限公司 | Unidirectional relay protection experiment device |
-
2013
- 2013-10-23 CN CN201320654937.1U patent/CN203521327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914336A (en) * | 2015-06-01 | 2015-09-16 | 苏州市华安普电力工程有限公司 | Unidirectional relay protection experiment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |