CN202304851U

CN202304851U - Anti-shake rotary encoder

Info

Publication number: CN202304851U
Application number: CN2011204315271U
Authority: CN
Inventors: 黄三来; 江波; 李金洲
Original assignee: Ningbo Everbest Electronics & Technology Co Ltd
Current assignee: Ningbo Everbest Electronics & Technology Co Ltd
Priority date: 2011-11-03
Filing date: 2011-11-03
Publication date: 2012-07-04
Anticipated expiration: 2021-11-03

Abstract

The utility model discloses an anti-shake rotary encoder, which comprises a rotary handle, a shell and an encoding plate, wherein the rotary handle is provided with a disc part and a shaft part; ring teeth are arranged on the disc part; the shell is internally provided with arc-shaped bulges adapted to teeth sockets of the ring teeth; a first ring conductive paint, a second ring conductive paint and a third ring conductive paint are printed on the encoding plate; circumferential faces of the first ring conductive paint and the second ring conductive paint are respectively of a sawtooth shape; the number of the teeth sockets is an integral multiple of the number of the sawteeth; a conductive brush is eccentrically fixed on the bottom face of the disc part, is provided with a first elastic pin and a second elastic pin, and is rotated along with the rotary handle; and the first elastic pin and the second elastic pin are respectively contacted with corresponding sawteeth of the first ring conductive paint and the second ring conductive paint simultaneously or located in a clearance between every two adjacent sawteeth. The anti-shake rotary encoder realizes that one pulse is output through multiple locations so that the accuracy requirement of each part is greatly reduced, avoids unqualified products caused by vibration when a whole machine is in actual work, and has the advantages of good hand feeling of operation, accurate location, and reliable quality.

Description

Anti-shake rotary encoder

Technical field

The utility model relates to switch, is specifically related to anti-shake rotary encoder.

Background technology

Rotary encoder is widely used on the automation equipments such as numerical control device, broadcast communication, instrument and meter and household electrical appliance.Its principle of work is: through rotating turning handle, from the output pin output pulse signal.

Existing rotary encoder is at each anchor point and produces a pulse, and when anchor point, output terminal all is in homologous state (all conducting or all not conductings); But being limited to rotary encoder itself has relatively high expectations to each part precision; And the safe distance of location conducting is all smaller, the phenomenon of dimensional discrepancy occurs if any individual part, or loads onto behind the complete machine when reality is used; When complete machine has vibration; Then can make scrambler when anchor point, the situation of location poor flow occur, thereby produce wrong output signal.

The utility model content

The utility model technical matters to be solved is the problem that solves the easy output error signal of rotary encoder.

In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted provides a kind of anti-shake rotary encoder; Comprise turning handle, housing and coded slice; Said turning handle have round plate and with the axial region of the concentric setting of round plate, said round plate places the inside of said housing and the roof that said axial region upwards passes said housing, said round plate is provided with annular tooth; Be provided with the suitable arc convex of tooth nest with said annular tooth in the said housing, said arc convex places in the tooth nest of said annular tooth; Said coded slice is the glass plate; Be encapsulated in the bottom surface open-mouth of said housing; Be printed with first, second and the 3rd annular conductive paint on the upper surface of said coded slice; Said first, second be center arranged concentric from outside to inside with the 3rd annular conductive paint with the axis of said turning handle, the periphery indentation of the said first and second annular conductive paints, and the tooth nest quantity of said annular tooth is the integral multiple of the sawtooth quantity of the said first or second annular conductive paint; Said coded slice is provided with first, second and the 3rd lead-out terminal, is connected with the 3rd annular silver lacquer conduction with said first, second respectively; Off-centre is fixed with conduction brush on the bottom surface of said round plate; Said conduction brush has first, second elasticity pin; With the rotation of said turning handle, said first, second elasticity pin contact with the corresponding sawtooth of said first, second annular conductive paint simultaneously respectively or the gap between adjacent sawtooth in.

In such scheme, said annular tooth is arranged on the upper surface of said round plate, and said arc convex is arranged on the said housing top wall lower surface.

In such scheme, the tooth nest quantity of said annular tooth is 36, and the quantity of said sawtooth is 9.

The utility model is realized circumferentially location through annular tooth on the turning handle and the arc convex on the housing, is printed with first, second and the 3rd annular conductive paint on the upper surface of coded slice; The periphery indentation of the first and second annular conductive paints, and the tooth nest quantity of annular tooth is the integral multiple of sawtooth quantity, realized pulse of a plurality of location outputs; Greatly reduce each part precision requirement; Make complete machine when real work, can not cause the bad of product, and operating handle is clear because of its vibration; Accurate positioning, reliable in quality.

Description of drawings

Fig. 1 is the contour structures synoptic diagram of the utility model;

Fig. 2 is the sectional view of the utility model;

Fig. 3 is the top-down decomposition texture synoptic diagram of the utility model;

Fig. 4 is the utility model decomposition texture synoptic diagram from bottom to top;

Fig. 5 is the synoptic diagram of the utility model coded slice;

Fig. 6 is the utility model coded slice and location contrast synoptic diagram.

Embodiment

Below in conjunction with accompanying drawing the utility model is made detailed explanation.

Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the anti-shake rotary encoder that the utility model provides comprises turning handle 1, housing 2, coded slice 4 and support 7.

The lower end of housing 2 is uncovered, and coded slice 4 is encapsulated in the lower end open-mouth of housing 2.Housing 2 realizes and the installation of pcb board that through support 7 support 7 is fixed on the bottom surface of coded slice 4, and is provided with a plurality of claws 71 that are used to clamp pcb board, and in the present embodiment, two claws 71 are oppositely arranged.

Again referring to Fig. 3 and Fig. 4, turning handle 1 have round plate 11 and with the axial region 12 of round plate 11 concentric settings, round plate 11 places the inside of housing 2 and the roof that axial region 12 upwards passes housing 2.The upper surface of round plate 11 is provided with annular tooth 13, and the lower surface of housing 2 roofs is provided with arc convex 21, and arc convex 21 is suitable with the tooth nest of annular tooth 13, and arc convex 21 places in the tooth nest of annular tooth 13.Turning handle 1 can circumferentially rotate, and realizes circumferentially location through arc convex 21 and annular tooth 13, and in the present embodiment, annular tooth 13 has 36 tooth nests, and therefore, turning handle 1 rotates and has 36 anchor points a week.Annular tooth 13 also can circumferentially being oppositely arranged along round plate 11 with arc convex 21.

Coded slice 4 is the glass plate, concrete structure such as Fig. 5, shown in Figure 6.Silk-screen has first, second and the 3rd annular silver lacquer 41,42,43 on the upper surface of coded slice 4; First, second is a center arranged concentric from outside to inside with the 3rd annular silver lacquer 41,42,43 axis with turning handle 1; The circumference indentation of the first and second annular silver lacquers 41,42, and the tooth nest quantity of annular tooth 13 is the integral multiple of the sawtooth quantity of the first or second annular conductive paint.Coded slice 4 is provided with first, second and the three or three lead-out

terminal

51,52,53, is connected with the 3rd annular silver lacquer 41,42,43 conductions with first, second respectively.

Again referring to Fig. 3, Fig. 4; Be fixed with conduction brush 6 on the bottom surface of round plate 11; Conduction brush 6 has first,

second elasticity pin

61,62; With the rotation of turning handle 1, first,

second elasticity pin

61,62 contact with the corresponding sawtooth of first, second annular conductive paint simultaneously respectively or the gap between adjacent sawtooth in.When first,

second elasticity pin

61,62 contacts with the corresponding sawtooth of first, second annular conductive paint simultaneously; First, second lead-out

terminal

51,52 conductings; Output pulse " 0 "; When first,

second elasticity pin

61,62 was simultaneously in the gap between the adjacent sawtooth at first, second annular conductive paint, first, second lead-out

terminal

51,52 broke off, output pulse " 1 ".

In the present embodiment; The tooth nest quantity of annular tooth 13 is 36; The first and second annular silver lacquers 41,42 have 9 sawtooth respectively; Like this, rotate 1 one weeks of turning handle, make first, second lead-out

terminal

51,52 be total to short circuit 9 times through first,

second elasticity pin

61,62 and the first and second annular silver lacquers 41,42.Therefore, pulse of per four the location output of the anti-shake rotary encoder that provides of the utility model.

The utility model can change the relation between location and the output pulse through tooth nest quantity and the silver-colored quantity of coating with lacquer 41,42 sawtooth of first, second annular that changes annular tooth 13; For example the tooth nest quantity when annular tooth 13 is 30; And quantity of first, second annular silver lacquer 41,42 sawtooth is when being respectively 10; Pulse of then per three location output, turning handle 1 rotates can export 10 pulses a week.

The innovative point of the utility model is:

(1) coded slice with former isocoding device changes to silk-screen silver lacquer on the glass plate by the handware punching press;

(2) each the location pulse of output with former like product changes to pulse of per four location output.

Therefore, greatly reduce each part precision requirement, make complete machine when real work, can not cause the bad of product, and operating handle is clear, accurate positioning, reliable in quality because of its vibration.

The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the utility model.

Claims

1. anti-shake rotary encoder; Comprise turning handle, housing and coded slice, it is characterized in that, said turning handle have round plate and with the axial region of the concentric setting of round plate; Said round plate places the inside of said housing and the roof that said axial region upwards passes said housing; Said round plate is provided with annular tooth, is provided with in the said housing and suitable several arc convex of the tooth nest of said annular tooth, and said arc convex places in the tooth nest of said annular tooth; Said coded slice is the glass plate; Be encapsulated in the bottom surface open-mouth of said housing; Be printed with first, second and the 3rd annular conductive paint on the upper surface of said coded slice; Said first, second be center arranged concentric from outside to inside with the 3rd annular conductive paint with the axis of said turning handle, the circumference indentation of the said first and second annular conductive paints, and the tooth nest quantity of said annular tooth is the integral multiple of the sawtooth quantity of the said first or second annular conductive paint; Said coded slice is provided with first, second and the 3rd lead-out terminal, is connected with the 3rd annular silver lacquer conduction with said first, second respectively; Off-centre is fixed with conduction brush on the bottom surface of said round plate; Said conduction brush has first, second elasticity pin; With the rotation of said turning handle, said first, second elasticity pin contact with the corresponding sawtooth of said first, second annular conductive paint simultaneously respectively or the gap between adjacent sawtooth in.

2. anti-shake rotary encoder as claimed in claim 1 is characterized in that, said annular tooth is arranged on the upper surface of said round plate, and said arc convex is arranged on the said housing top wall lower surface.

3. according to claim 1 or claim 2 anti-shake rotary encoder is characterized in that the tooth nest quantity of said annular tooth is 36, and the quantity of said sawtooth is 9.