CN205230861U

CN205230861U - Straight pushing -type motor relay

Info

Publication number: CN205230861U
Application number: CN201520914095.8U
Authority: CN
Inventors: 黄兴隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2016-05-11
Anticipated expiration: 2025-11-17

Abstract

The utility model discloses a straight pushing -type motor relay. Technique side is including the relay, including the casing, install drive arrangement and the contact electrode continuous with drive arrangement in the casing, the contact electrode comprises a dynamic electrode and a static electrode, drive arrangement includes direct current motor, the gear train and the pushing mechanism that link to each other with direct current motor's output, its characterized in that: pushing mechanism include the rack impeller, the rack impeller includes the push rod, push rod upper surface rear end sets up the teeth of a cogwheel, these teeth of a cogwheel and gear train final stage gear engagement, push rod upper surface front end has the frame, install in the frame rather than push pedal before the swing joint and back push pedal, set up the spring between preceding push pedal and the back push pedal, preceding push pedal front end both sides set up the dynamic electricity utmost point, push rod and casing sliding connection.

Description

A kind of direct-push motor relay

Technical field

The utility model relates to relay, is specially a kind of electric motor type relay.

Background technology

Relay is a kind of electric control device; when the change of input variable reaches regulation requirement; in electric output circuit, make controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs; play the effects such as automatic adjustment, safeguard protection, change-over circuit because of it in circuit, become a kind of electronic devices and components of automation field extensive use.At present in intelligent grid, electric motor type relay is more and more accepted.Electric motor type relay is a kind of under control signal, utilizes the rotation of motor to be switched on or switched off circuit, and control signal disappearance back contact still can inhibit signal disappear before the control element of state.

The Chinese utility model patent of publication number 201820714U discloses a kind of motor-type high power relay, and scheme includes motor driver and the elastic force mechanical lock mechanism that is connected with motor driver and the electrode be connected with elastic force mechanical lock mechanism; The worm and gear dynamic retarding transmission mechanism that described motor driver includes direct current machine and is connected with direct current machine; Described elastic force mechanical lock mechanism is connected with moving electrode with reduction gearing mechanism, includes power eccentric wheel, locking bar, push rod and locking spring; Described electrode includes moving electrode and stationary electrode.Above-mentioned this kind of relay, because elastic force mechanical lock mechanism parts are more, spring one end is articulated in that power is eccentric put into gear on, other end tension is articulated on the fulcrum that locking bar is connected with push rod, push rod connects moving electrode by hanging hole, and this assembling mode assembling is complicated, and operation easier is large, assemble the length that expends time in, cause cost of labor high.

For solving the problem, the Chinese utility model patent of publication number 203456328U discloses a kind of electric motor type transmission relay.Scheme comprises: described drive unit comprises direct current machine, the gear train be connected with the output of direct current machine and push card, the final-stage gear of described gear train is worm sector, one end and the worm sector of described push card are hinged, and the other end and moving electrode are that flexible pusher is connected.

Above-mentioned no matter any scheme, maintenance between its moving electrode and stationary electrode is all realized by movable contact spring, and described movable contact spring is a kind of copper sheet, and its its elasticity in the motion of long-term open/close can be deteriorated, easily cause the retentivity between electrode and stationary electrode to be deteriorated, cause loose contact.In addition, when moving electrode and stationary electrode disconnect, all utilize the swing of worm sector, pull-up movable contact spring, moving electrode is separated with stationary electrode, this structure is easy to cause the stuck of gear train.

Utility model content

The technical problems to be solved in the utility model is to provide good, the not easily stuck direct-push motor relay of retention between a kind of moving electrode and stationary electrode.

For solving the problem, technical side of the present utility model comprises relay, comprise housing, be arranged on the drive unit in housing, and the contact electrode to be connected with drive unit, described contact electrode comprises moving electrode and stationary electrode, described drive unit comprises direct current machine, the gear train be connected with the output of direct current machine, and pushing mechanism, it is characterized in that: described pushing mechanism comprises tooth bar impeller, described tooth bar impeller comprises push rod, described push rod upper surface rear end arranges the gear teeth, these gear teeth engage with gear train final-stage gear, described push rod upper surface front end has framework, the front push pedal and rear push pedal that are flexibly connected with it are installed in described framework, between described front push pedal and rear push pedal, spring is set, both sides, described front push pedal front end arrange moving electrode, described push rod and housing are slidably connected.

Described relay, is characterized in that: the slide rail that the first chute that described push rod is arranged by lower surface and housing are arranged is slidably connected.

Described relay, is characterized in that: arrange the slide rail that the cap of the second chute and housing is arranged above the framework of described push rod front end and be slidably connected.

Described relay, is characterized in that: the gear teeth both sides of described putting back-end arrange baffle plate, and described baffle plate is corresponding with rear push pedal both sides.

Described relay, is characterized in that: described gear train comprises coaxial the first gear, the second gear that connect and is arranged on the worm screw of direct current machine output, described first gear and worm engaging, the gear teeth meshing on described second gear and described push rod.

Direct-push motor relay of the present utility model, changing traditional worm sector drives as direct-push drives, after adopting direct-push to drive, motor rotates forward by tooth bar impeller upwardly, moving electrode is contacted with stationary electrode, when the second pinion rotation of gear train skids to during last lattice of the push rod gear teeth, by the active force of spring, mechanism realizes hold mode.In like manner, tooth bar impeller promotes downwards by motor reversal, and moving electrode is separated with stationary electrode, and when the second pinion rotation of gear train skids to during the first lattice of the push rod gear teeth, also by the active force of spring, mechanism realizes hold mode.Owing to have employed spring as keeper, its elasticity is much better than copper sheet, thus improves its retention, extends product useful life.In addition, adopt and directly push away driving, stressed between the second gear of gear train and the push rod gear teeth relative to stressed between conventional worm and worm sector evenly, thus overcome stuck problem.Finally, moving electrode of the present utility model and electrostatic very two point contact, its stability is also more better than traditional single-contact.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is exploded view of the present utility model;

Fig. 2 is drive unit of the present utility model, gear train and pushing mechanism graph of a relation;

Fig. 3 is the structural representation of tooth bar impeller of the present utility model;

Fig. 4 is shell structure schematic diagram of the present utility model.

Embodiment

As Figure 1-4, direct-push motor relay of the present utility model, the contact electrode comprising housing 1, be arranged on the drive unit in housing and be connected with drive unit, described contact electrode comprises moving electrode 2 and stationary electrode 3, and described drive unit comprises direct current machine 4, the gear train 5 be connected with the output of direct current machine and pushing mechanism.Described pushing mechanism comprises tooth bar impeller 6, described tooth bar impeller 6 comprises push rod 601, described push rod 601 upper surface rear end arranges the gear teeth 602, these gear teeth 602 engage with gear train 5 final-stage gear, described push rod 601 upper surface front end has framework 603, be provided with in described framework 603 and be flexibly connected front push pedal 604 and rear push pedal 605 with it, between described front push pedal 604 and rear push pedal 605, spring 606 is set, both sides, described front push pedal 604 front end arrange moving electrode 2, and described push rod 601 is slidably connected with housing 1.Concrete, the slide rail 8 that the first chute 7 that described push rod 601 is arranged by lower surface and housing 1 are arranged is slidably connected.

Described gear train 5 comprises coaxial the first gear 501, second gear 502 connected and the worm screw 503 being arranged on direct current machine 4 output, described first gear 501 engages with worm screw 503, and described second gear 502 engages with the gear teeth 602 on described push rod 601.

Further optimization such scheme, arranges the slide rail that the cap of the second chute 10 and housing 1 is arranged and is slidably connected above the framework 603 of described push rod 601 front end.Push rod adopts and is slidably connected with housing up and down simultaneously, makes in tooth bar impeller 6 inner housing more stable.

Optimize such scheme further again, the gear teeth 602 both sides of described push rod 601 rear end arrange baffle plate 9, and described baffle plate 9 is corresponding with rear push pedal 605 both sides.Baffle plate 9 mainly plays spacing effect, although the second pinion rotation of gear train can skid to the first lattice of the push rod gear teeth, tooth bar impeller can not move always backward, but also has certain friction between gear and push rod, if do not have baffle plate easily to cause position of rest unstable.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., be all included within protection range of the present utility model.

Claims

1. a direct-push motor relay, comprise housing (1), be arranged on the drive unit in housing, and the contact electrode to be connected with drive unit, described contact electrode comprises moving electrode (2) and stationary electrode (3), described drive unit comprises direct current machine (4), the gear train (5) be connected with the output of direct current machine, and pushing mechanism, it is characterized in that: described pushing mechanism comprises tooth bar impeller (6), described tooth bar impeller (6) comprises push rod (601), described push rod (601) upper surface rear end arranges the gear teeth (602), these gear teeth (602) engage with gear train (5) final-stage gear, described push rod (601) upper surface front end has framework (603), be provided with in described framework (603) and be flexibly connected front push pedal (604) and rear push pedal (605) with it, spring (606) is set between described front push pedal (604) and rear push pedal (605), described front push pedal (604) both sides, front end arrange moving electrode (2), described push rod (601) and housing (1) are slidably connected.

2. direct-push motor relay according to claim 1, is characterized in that: the first chute (7) that described push rod (601) is arranged by lower surface is slidably connected with the upper slide rail (8) arranged of housing (1).

3. direct-push motor relay according to claim 2, is characterized in that: framework (603) top of described push rod (601) front end arranges the slide rail that the cap of the second chute (10) and housing (1) is arranged and is slidably connected.

4. the direct-push motor relay according to claim 1 or 2 or 3, is characterized in that: the gear teeth (602) both sides of described push rod (601) rear end arrange baffle plate (9), and described baffle plate (9) is corresponding with rear push pedal (605) both sides.

5. the direct-push motor relay according to claim 1 or 2 or 3, it is characterized in that: described gear train (5) comprises coaxial the first gear (501), the second gear (502) that connect and is arranged on the worm screw (503) of direct current machine (4) output, described first gear (501) is engaged with worm screw (503), and described second gear (502) is engaged with the gear teeth (602) on described push rod (601).