CN210245341U - Electric motor - Google Patents

Abstract

The utility model discloses a motor, which comprises a main body and a gear set, wherein the gear set is provided with a first gear, the outer wall of the first gear is provided with a groove, the motor also comprises a driving mechanism and a micro switch, and the micro switch is positioned on the other side of the main body corresponding to the first gear; the driving mechanism of the first gear is fixed on the main body, one end of the driving mechanism is positioned on the motion track of the outer wall of the first gear, the button of the microswitch is positioned on the motion track of the other end of the driving mechanism, and the driving mechanism is integrally linked; the utility model has the characteristics of convenient assembling, low in production cost, silence are effectual etc.

Description

Electric motor

Technical Field

The utility model relates to a motor.

Background

At present, the types of motors are various, the motors are used in different occasions, particularly the motors on a frame type circuit breaker, work is achieved through rotation of a gear set, and the gear set drives a microswitch on the motor to act while working, so that signal transmission is achieved.

The existing transmission mode of the microswitch is that a groove is arranged on the outer wall of one gear, a button of the microswitch is positioned on the motion track of the outer wall of the gear, and the button is clamped into the groove to realize on-off transmission of signals.

However, the microswitch 101 and the gear with the groove are located on the same side of the motor, so that the installation is too small, the volume of the microswitch 101 is too small, the movable contact and the fixed contact in the microswitch 101 are relatively close to each other, and in the process of soldering an external lead by soldering tin of an iron, the temperature of the iron is difficult to bear, and the internal components of the microswitch 101 are deformed and damaged. And accidents such as burning out are easy to happen through direct current. Therefore, it is necessary to prevent the micro switch from being burnt by the direct current by connecting a filter 102 in series.

Disclosure of Invention

The utility model discloses the main technical problem who solves provides a stable in structure and simple to operate's a motor.

The utility model discloses the technical scheme who solves its technical problem and adopt is: a motor comprises a main body and a gear set, wherein the gear set is provided with a first gear, the outer wall of the first gear is provided with a groove, the motor also comprises a driving mechanism and a microswitch, and the microswitch is positioned on the other side of the main body corresponding to the first gear; the actuating mechanism of first gear is fixed in the main part, and actuating mechanism one end is located the outer wall movement track of first gear, and micro-gap switch's button is located the movement track of the actuating mechanism other end, and actuating mechanism sets up for whole linkage.

By adopting the arrangement, the first gear and the microswitch are arranged at different sides, so that the mounting area of the microswitch is greatly increased, alternating current or direct current can be operated by adjusting the size of the microswitch, a filter is not required to be connected in series, the mounting process is saved, and the production cost is reduced. Meanwhile, the driving mechanism is arranged, so that the whole transmission is more convenient.

The driving mechanism comprises a connecting shaft, the main body comprises a first side plate and a second side plate, one end of the connecting shaft is connected with the first side plate, the other end of the connecting shaft is connected with the second side plate, and the connecting shaft is rotatably arranged relative to the main body; the connecting shaft is provided with a first driving piece and a second driving piece, the first driving piece is positioned on the motion track of the outer wall of the first gear, and the button of the microswitch is positioned on the motion track of the second driving piece.

Through the setting of connecting axle for two driving pieces are synchronous, rotate through first gear, if drive the motion of first driving piece, and first driving piece passes through the connecting axle and drives the motion of second driving piece, realizes whole linkage, guarantees signal transmission's stability.

Wherein, be equipped with the torsional spring on the connecting axle, torsional spring one end is connected with first driving piece, and the torsional spring body cover is established on the connecting axle.

The arrangement of the torsion spring is adopted, the matching strength of the first driving piece and the groove of the first gear is increased, the torsion spring plays a role in resetting, and when the first gear rotates, the first driving piece can timely act to reset.

The connecting rod is connected with the first side plate and the second side plate, a fixing clamping groove is formed in the first driving piece, one end of the torsional spring is fixed on the fixing clamping groove, and the other end of the torsional spring is clamped on the connecting rod.

The setting of fixed slot and connecting rod further, improves holistic effect that resets.

The transmission shaft is sleeved with the first gear, a fixing groove is formed in the transmission shaft, and solid lubricating oil is arranged in the fixing groove.

The setting of fixed slot through preventing solid-state lubricating oil, relative and current setting through liquid lubricating oil adopts liquid lubricating oil's setting, because the fixed orifices of gear train differs only 10 silks with the cooperation size of transmission shaft, so at fixed in-process, very easily discharges liquid lubricating oil, leads to the junction between gear train and the transmission shaft to lack lubricated effect, and long-time action is rotated, has the noise to produce. And adopt the setting of fixed slot, because solid-state lubricating oil is placed to inside, when rotating the in-process, because the transmission shaft rotates the heat that can produce the part for a little fixed lubricating oil liquefaction lasts the transmission effect of guaranteeing between gear train and the transmission shaft, guarantees to last lubricated, for current setting, noise greatly reduced.

The micro switch is internally provided with a shell, a containing cavity is arranged in the shell, at least two groups of moving contacts, static contacts matched with the moving contacts, a push rod and a wiring terminal are arranged in the containing cavity, the push rod and the shell are arranged in a sliding mode, and part of the push rod extends out of the top surface of the shell; a wiring port is arranged on one side face of the shell, and the wiring terminals are respectively arranged beside two adjacent side faces of the side face.

Adopt binding post to divide to establish on two sides adjacent with wiring mouth place side, avoided binding post to set up side by side, relative ratio prior art binding post sets up side by side in the setting of bottom, adopts this kind of structure, has solved the problem of wiring difficulty for it is more simple and convenient to work a telephone switchboard, makes behind the wiring more pleasing to the eye simultaneously. Meanwhile, the space utilization rate inside the microswitch is larger, the integral electrical effect is guaranteed, the distance between the static contact and the moving contact is increased, and the microswitch can be used for passing through alternating current or direct current.

The distance between the isolation plate and the moving contacts is larger than the distance that the moving contacts move after being driven by the push rod.

The isolating plate is positioned between the two adjacent groups of moving contacts to prevent electric arc or creepage and form electric isolation; the distance between the isolation plate and the moving contact is arranged, so that the influence of the isolation plate on the driving of the push rod is prevented.

Wherein, the shell is provided with a heat dissipation hole which is positioned above the joint of the static contact and the moving contact.

The arrangement of the heat dissipation holes is adopted, so that heat generated by the contact of the static contact and the moving contact can be quickly released, and the heat dissipation holes are located right above the connection position of the static contact and the moving contact or can slightly deviate, and further the heat dissipation holes can be round holes or square holes.

And a spring is arranged between the two adjacent groups of moving contacts, and two ends of the spring are respectively abutted against the two groups of moving contacts.

Due to the arrangement of the springs, the moving contact is more stably contacted with the fixed contact in the operation process of the push rod, and the connection efficiency is ensured.

The push rod is connected with the shell through a push rod, the push.

The setting of spring holder for II fixed more convenience of reset spring, the effect of reset spring II makes the push rod more easily reset simultaneously, guarantees electrical connection.

The wiring terminals are distributed on four corners of the base, notches are formed in the four corner positions of the upper cover, and the wiring terminals are exposed through the corresponding notches.

The wiring terminal is located the setting at four angles of cavity, and four wiring terminals of relative ratio prior art set up side by side, adopt this kind of structure, have changed the inner structure of cavity for the space utilization of cavity improves greatly, makes the thickness of static contact improve, increases its resistance to pressure.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 3 is a sectional view of embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a micro switch in embodiment 1 of the present invention;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a front view of FIG. 4;

fig. 7 is a schematic structural view of a movable contact and a spring in embodiment 1 of the present invention;

fig. 8 is a schematic structural view of a fixed contact in embodiment 1 of the present invention;

fig. 9 is a schematic view of an internal structure of a micro switch according to embodiment 1 of the present invention;

fig. 10 is a sectional view of a micro switch in embodiment 1 of the present invention;

fig. 11 is a schematic structural view of a driving mechanism in embodiment 1 of the present invention;

fig. 12 is a schematic structural view of a micro switch in embodiment 2 of the present invention;

fig. 13 is a schematic structural view of a micro switch in embodiment 3 of the present invention;

fig. 14 is a schematic view of the installation of the micro-gap switch and the insulating pad in embodiment 3 of the present invention.

Detailed Description

Example 1:

referring to fig. 2 to 11, an electric motor includes a main body 6, a gear set 7, a driving mechanism 8, and a micro switch 9, where the main body 6 includes a first side plate 61 and a second side plate 62, the first side plate 61 and the second side plate 62 are connected by a connecting column 63, the first side plate 61 and the second side plate 62 form an interval cavity, and the gear set 7 is fixed between the first side plate 61 and the second side plate 62, where a specific structure of the gear set 7 is a prior art, and thus, redundant description is omitted here. The gear set 7 is provided with a transmission shaft 71 and a first gear 72, the gear set 7 is sleeved on the transmission shaft 71, the transmission shaft 71 is provided with a fixing groove 711, the fixing groove 711 is internally provided with solid lubricating oil 712, and the fixing groove 711 is preferably a circular ring fixing groove 711. The connecting rod 106 connects the first side plate 61 and the second side plate 62, and the connecting rod 106 and the connecting shaft 81 are disposed in parallel.

The setting of fixed slot 711 is through placing solid-state lubricating oil 712, and relative and current setting through liquid lubricating oil adopts liquid lubricating oil's setting, because the fixed orifices of gear train 7 and transmission shaft 71's cooperation size difference only 10 silks, so in fixed process, very easily discharge liquid lubricating oil, lead to the junction between gear train 7 and the transmission shaft 71 to lack lubricated effect, long-time action is rotated, has the noise to produce. And adopt the setting of fixed slot 711, because solid-state lubricating oil 712 is placed to inside, when rotating the in-process, because transmission shaft 71 rotates and can produce partial heat for a little fixed lubricating oil liquefaction continues to guarantee the transmission effect between gear train 7 and the transmission shaft 71, guarantees to continue lubricated, for current setting, noise greatly reduced.

The first gear 72 has a groove 721 on the outer wall thereof. Here, the first gear 72 is located near one end of the first side plate 61, the gear of the first gear 72 is located on the inner side, the outer wall is a smooth circle, and the groove 721 is located on the outer wall.

The driving mechanism 8 includes a connecting shaft 81, one end of the connecting shaft 81 is connected to the first side plate 61, the other end is connected to the second side plate 62, and the connecting shaft 81 is rotatably disposed relative to the main body 6. The connecting shaft 81 is provided with a first driving member 811 and a second driving member 812, the first driving member 811 is located on the outer wall motion track of the first gear 72, and the button of the microswitch 9 is located on the motion track of the second driving member 812. Here, the micro switch 9 is fixed on the second side plate 62, and further, the micro switch 9 is connected and fixed with the second side plate 62 through an insulating pad 105. The first driving member 811 and the second driving member 812 are oriented in the same direction. If drive the motion of first driving piece 811, first driving piece 811 drives the motion of second driving piece 812 through connecting axle 81 simultaneously, realizes whole linkage, guarantees signal transmission's stability.

Furthermore, a torsion spring 813 is sleeved on the connecting shaft 8, a fixing clamping groove 814 is arranged on the first driving member 811, one end of the torsion spring 813 is fixed on the fixing clamping groove 814, and the body of the torsion spring 813 is sleeved on the connecting shaft 8 and the other end of the torsion spring is clamped with the connecting rod 106. Adopt the setting of torsional spring 813, increased the cooperation intensity of the recess of first driving piece 811 and first gear 72, torsional spring 813 plays the effect that resets, and when first gear 72 rotated, first driving piece 811 can in time act and reset.

The micro switch 9 comprises a shell 5, the shell 5 comprises a base 1 and an upper cover 2, the base 1 and the upper cover 2 are detachably connected, a containing cavity 3 is formed in the containing cavity after the base 1 and the upper cover 2 are matched, two groups of static contacts 31, two groups of moving contacts 32, a push rod 33, a spring 35 arranged between the two groups of moving contacts and a reset spring II 36 are arranged in the containing cavity 3, the static contacts 31 comprise static contacts I311 and II 312, and the moving contacts 32 comprise moving contacts I321 and II 322; the static contact I311 and the moving contact I321 are in a normally closed state, the static contact II 312 and the moving contact II 322 are in a normally open state, the normally closed state and the normally open state are switched by moving the push rod 33, contact parts of the two groups of static contacts 31 and the moving contact 32 are both set as contacts 39, the contacts 39 are in a circular truncated cone shape, and the top surface of the contacts is a plane.

The top of the base 1 is provided with a stroke groove I15, and the stroke groove I15 is positioned between the wiring terminal I111 and the wiring terminal II 112; a stroke groove II 16 is formed in the position, corresponding to the stroke groove I15, of the upper cover 2, and the stroke groove I15 and the stroke groove II 16 form a guide structure together; the top of the push rod 33 extends out of the shell 5, the position where the push rod 33 extends out of the shell 5 is a button, the size of the push rod 33 is matched with the stroke groove I15 and the stroke groove II 16, the push rod 33 slides on the stroke groove I15 and the stroke groove II 16, the push rod 33 is provided with a through hole II 332, the through hole II 332 is formed in the radial direction of the push rod 33, two convex blocks 331 arranged diagonally are arranged at the bottom of the push rod 33, the corresponding surfaces of the two convex blocks 331 are cambered surfaces, a spring seat 333 is formed by the two convex blocks 331 and the bottom surface of the push rod 33, one end of a return spring II 36 is abutted against the spring seat 333, and the.

All be equipped with draw-in groove 37 on two sets of moving contacts 34, the width looks adaptation of draw-in groove 37 size and push rod 33, two moving contacts 34 are located through-hole II 332 and the buckle is fixed inside push rod 33, and parallel arrangement about just being.

Positioning grooves 38 are formed in the corresponding surfaces of the two groups of moving contacts 34, the spring 35 is located between the two moving contacts 34, and meanwhile, two ends of the spring 35 are respectively fixed in the positioning grooves 38, so that two ends of the spring 35 are abutted to the two moving contacts 34; another way of mounting the spring 35 here is: the two moving contacts 34 exceed the height of the push rod 33, and the spring 35 is sleeved on the push rod 33 and respectively abutted against the two moving contacts 34 to fix the spring 35.

Be equipped with four binding post 11 and screw 12 on the base 1, binding post 11 is located four angles of base 1 respectively for switch inner space utilization increases, prevents simultaneously that two adjacent binding post 11 from producing electric arc, influences its normal use. Two of the four connecting terminals 11 are in a group, the upper and lower two groups of connecting terminals 11 are arranged in parallel, and the connecting terminals 11 in a group are disconnected and connected with the static contact 31 through the moving contact 32.

A limiting structure is formed between the four wiring terminals 11 and the side wall of the base 1, each of the static contact i 311 and the static contact ii 312 includes a fixing portion 313 and a contact portion 314, the fixing portion 313 is clamped in the limiting structure, the static contact 31 is fixed by the limiting structure, and the contact portion 314 is a contact portion between the static contact 31 and the moving contact 32; the withstand voltage of the static contact 31 is usually affected by the thickness of the static contact, and if the thickness of the static contact is increased, the withstand voltage is also enhanced, so that the size of the limiting structure is matched with the actually required thickness of the static contact, and the specific size can be adjusted according to the actual requirement; the number of the terminals 11 may be adjusted according to actual requirements, and is not necessarily two.

Be equipped with wiring mouth 131 on the base 1 side, four corner position departments of upper cover 2 are equipped with breach 25, binding post 11 part is exposed by breach 25 that corresponds, upper cover 2 is located and is equipped with four groups of isolation muscle 22 on the one side of base 1 outside, four groups of isolation muscle 22 center on breach 25, four groups of isolation muscle 22 have been seted up towards one side of wiring mouth 131 and have been walked line hole 24, it forms by isolation muscle 22 and wiring mouth 131 to be located to walk line hole 24 on two isolation muscle 22 that are close to wiring mouth 131, it sets up on its one side that corresponds wiring mouth 131 to be located to walk line hole 24 of two isolation muscle 22 that keep away from wiring mouth 131. The isolation rib 22 can provide an electrical isolation effect to prevent a creepage and the like, and the wire hole 24 is used for a wire connection, and the wire passes through the wiring opening 131 and the wire hole 24 is connected to the terminal 11.

Be equipped with I21 and the spacer 23 of through-hole that corresponds with screw 12 on the upper cover 2, be equipped with tightening part 27 in the screw, the bolt passes the tightening part 27 of upper cover and screw, form threaded connection, make base 1 and upper cover 2 form one and hold cavity 3, make base 1 and upper cover be detachable fixed, this tightening part 27 specifically is less than the aperture of screw for the aperture, nevertheless tightening part 27's aperture just with the bolt adaptation, make the bolt when passing tightening part 27, form the screw thread, because the bolt motion generates heat and makes the bolt stretch into to tightening part 27 in, wait to tighten part 27 cooling, tightening part 27 clamping bolt makes fixed more fastening.

Further, the screw hole 12 is communicated with the base 1 and the cavity, so that a bolt penetrates through the through hole I21 and the screw hole 12 to be fixed; after the base 1 is matched with the upper cover 2, the spacer 23 is positioned between the movable contact I321 and the movable contact II 322.

Further, the upper cover 2 is provided with heat dissipation holes 28, and the heat dissipation holes 28 are arranged, so that heat generated by contact between the static contact and the moving contact can be quickly released, and it should be noted that the heat dissipation holes 28 are located right above the connection position of the static contact and the moving contact, or can be slightly offset, so that electric arcs generated by connection between the static contact and the moving contact can pass through the heat dissipation holes 28 and pass through the microswitch 9, and further, the heat dissipation holes 28 can be round holes, square holes or kidney-shaped holes. Further, the upper cover 2 may be transparent, which facilitates the user to observe the internal conditions.

By adopting the arrangement, the first gear 72 and the microswitch 9 are arranged at different sides, so that the mounting area of the microswitch 9 is greatly increased, alternating current or direct current can be operated by adjusting the size of the microswitch 9, a filter is not required to be connected in series, the mounting process is saved, and the production cost is reduced. Meanwhile, the driving mechanism 8 is arranged, so that the whole transmission is more convenient. By adopting the arrangement, the distance between the movable contact and the fixed contact is increased, so that the normal operation of the microswitch 9 can be ensured regardless of direct current or alternating current.

Example 2:

referring to fig. 12, the difference between the embodiment 2 and the embodiment 1 is that the microswitch 9 in the embodiment 2 is of a lever type, that is, one end is fixed, the other end is tilted, and the microswitch 9 is driven to move by a second driving member.

Example 3:

referring to fig. 13-14, the difference between embodiment 3 and embodiment 1 is that in embodiment 2, terminals of the micro switches 9 are all located on the bottom of the micro switches 9 and the terminals are hidden in the bottom, and the micro switches 9 are also fixed to the second side plate by the insulating pad 105.

Claims (10)

1. The utility model provides a motor, includes main part and gear train, is equipped with first gear on the gear train, is equipped with recess, its characterized in that on the outer wall of first gear: the driving mechanism and the microswitch are also included, and the microswitch is positioned on the other side of the main body corresponding to the first gear; the actuating mechanism of first gear is fixed in the main part, and actuating mechanism one end is located the outer wall movement track of first gear, and micro-gap switch's button is located the movement track of the actuating mechanism other end, and actuating mechanism sets up for whole linkage.

2. An electric motor as claimed in claim 1, wherein: the driving mechanism comprises a connecting shaft, the main body comprises a first side plate and a second side plate, one end of the connecting shaft is connected with the first side plate, the other end of the connecting shaft is connected with the second side plate, and the connecting shaft is rotatably arranged relative to the main body; the connecting shaft is provided with a first driving piece and a second driving piece, the first driving piece is positioned on the motion track of the outer wall of the first gear, and the button of the microswitch is positioned on the motion track of the second driving piece.

3. An electric motor as claimed in claim 2, wherein: the connecting shaft is provided with a torsion spring, one end of the torsion spring is connected with the first driving piece, and the torsion spring body is sleeved on the connecting shaft.

4. A motor according to claim 3, wherein: the connecting rod is connected with the first side plate and the second side plate, a fixing clamping groove is formed in the first driving piece, one end of the torsional spring is fixed on the fixing clamping groove, and the other end of the torsional spring is clamped on the connecting rod.

5. An electric motor as claimed in claim 2, wherein: the transmission shaft is sleeved with the first gear, a fixing groove is formed in the transmission shaft, and solid-state lubricating oil is arranged in the fixing groove.

6. An electric motor as claimed in claim 1, wherein: the micro switch is internally provided with a shell, a containing cavity is arranged in the shell, at least two groups of moving contacts, static contacts matched with the moving contacts, a push rod and a wiring terminal are arranged in the containing cavity, the push rod and the shell are arranged in a sliding mode, and partially extend out of the top surface of the shell, the push rod and the moving contacts are arranged in a linkage mode, the static contacts and the wiring terminal are electrically connected, one group of the static contacts and the moving contacts are in a normally closed state, the other group of the static contacts and the moving contacts are in a normally open; a wiring port is arranged on one side face of the shell, and the wiring terminals are respectively arranged beside two adjacent side faces of the side face.

7. An electric motor as claimed in claim 6, wherein: the distance between the isolation plate and the moving contact is larger than the distance that the moving contact moves after being driven by the push rod.

8. An electric motor as claimed in claim 7, wherein: the shell is provided with heat dissipation holes, and the heat dissipation holes are located above the connection position of the static contact and the moving contact.

9. An electric motor as claimed in claim 6, wherein: and a spring is arranged between the two adjacent groups of moving contacts, and two ends of the spring are respectively abutted against the two groups of moving contacts.

10. An electric motor as claimed in claim 9, wherein: the push rod is characterized by further comprising a return spring II, a spring seat is arranged at the bottom of the push rod, one end of the return spring II abuts against the spring seat, and the other end of the return spring abuts against the inner wall of the shell.

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