CN201110994Y

CN201110994Y - Encoder

Info

Publication number: CN201110994Y
Application number: CNU2007200542551U
Authority: CN
Inventors: 吴福喜
Original assignee: Dongguan Kaihua Electronics Co Ltd
Current assignee: Dongguan Kaihua Electronics Co Ltd
Priority date: 2007-07-11
Filing date: 2007-07-11
Publication date: 2008-09-03
Anticipated expiration: 2017-07-11

Abstract

Disclosed is an encoder, relating to an encoder. The encoder comprises a main body(1), a spigot shaft body(2), a cover body(3), a shell(4), a metal conductor(5), an elastic metal contact body(6) and a touch elastomer(7). A fixing pole(1e)to fix the touch elastomer(7) is arranged on the main body and an accommodation room(1d) to hold the spigot shaft body(2)is arranged inside the main body; a through hole(1c)is arranged at the center of the main body(1); the spigot shaft body(2) is housed in the accommodation room(1d)of the main body(1) and is provided with a through hole(2d) at the center; a circular lug boss(2c)at the back of the spigot shaft body(2) is matched with the through hole(1c)of the main body(1); the cover body is assembled at the backside of the main body(1) and a through hole(3a)is arranged at the center of the cover body; the shell(4)is a clamp device which is provided with a through hole(4a)at the center and clamps the main body(1), the spigot shaft body(2), the cover body(3) and the touch elastomer(7) together. The encoder is stable in electrical performance.

Description

Scrambler

Technical field

The utility model relates to scrambler.

Background technology

Scrambler generally is applied to the mouse field, and its function that mainly realizes is that its three slotting PCB pins are exported two groups of switching signals that possess mistiming (will the mistiming be called phase differential usually) when the angle of rotating.The IC of mouse receives the signal that has phase differential, with realize computer screen turn over lattice and picture switches.Whenever stir lattice, the picture switching has and can only once switch, this just needs each part of coder structure to possess very high machining precision and manufacturing accuracy, but the assurance of processing and manufacturing accuracy mainly depends on board equipment and human factor, these two factors to be controlled in the practical operation difficulty bigger, and hidden danger is very big.

The way of contact of current encoder device structure is all the contact chip that has three claw type contact point/three pilot holes, three pilot holes of contact chip rivet together with the center axis body that is provided with three reference columns, because the claw type contact point of contact chip is thinner, easily overlap in the punching course, easily contact point is done distortion in the assembling process, cause contacting points position to depart from.The deviation of contact point exists in contact chip and center axis body anabolic process, and difficulty is avoided, and next is exactly that artificially the distortion of contact chip claw type contact point lane is inevitable in assembling main body and center axis body process, causes the rising of product fraction defective.Owing to the leakage lattice of scrambler, jump the critical defect that a series of undesirable elements such as lattice, backspace cause whole mouse.

The scrambler main body of existing structure and the pin of output signal adopt the moulding processing technology, because the pin of output signal is divided into three parts, the moulding technological parameter is bigger to shaping influence, and the angular deviation of three parts is subjected to the influence of technological parameter also just bigger.

Summary of the invention

The purpose of this utility model is to provide a kind of scrambler of good stability.

The purpose of this utility model can realize like this, design a kind of scrambler, comprise main body, center axis body, lid, housing, metallic conductor, metallic elastic contact, sense of touch elastic body, on main body, be provided with the resettlement section that the fixing inside of the elastomeric fixed leg of sense of touch and main body is provided with the Collecting Center axis body, be provided with through hole in the center of main body; The center axis body is contained in the resettlement section of main part, and its positive center is provided with through hole, and back side round boss is that axis hole cooperates with the through hole of main body; Lid is assembled in the back side of main body, and the lid center is provided with through hole; Housing is the fastener that main body, center axis body, lid, sense of touch elastic body are tightened together, and its center is provided with through hole.

The utlity model has following advantage: because metallic conductor is global design, be easy to guarantee precision in the stamping products process, and with center axis body moulding process in, it is less influenced by injection parameters, guarantees that each regional angle of metallic conductor is accurate; Because main body and metallic elastic contact are direct moulding, and the Elastic Contact of metallic elastic body point is moulding after process direct punching molding later, well guaranteed the accurate of metallic elastic contacting points position; Because the front and back end of center axis body all is provided with round boss, and front end round boss and the housing center hole axis hole that sprouts cooperates, and the rear end boss cooperates with main center hole axis hole, makes the center axis body have good guidance and right alignment in rotation process.Therefore, way of contact structure of the present utility model can guarantee the stability of product function, eliminates the unsettled hidden danger of product function.

Description of drawings

Fig. 1 is the left-hand decomposing schematic representation of the utility model preferred embodiment.

Fig. 2 is the dextrad decomposing schematic representation of the utility model preferred embodiment.

Fig. 3 is the preceding synoptic diagram of housing riveted of the utility model preferred embodiment.

Fig. 4 is the synoptic diagram behind the housing riveted of the utility model preferred embodiment.

Fig. 5 is the front elevation behind the housing removed of the utility model preferred embodiment.

Fig. 6 is the rear view behind the housing removed of the utility model preferred embodiment.

Fig. 7 is axle body and the preceding synoptic diagram of metallic conductor moulding among the utility model preferred embodiment.

Fig. 8 is the synoptic diagram behind axle body and the metallic conductor moulding among the utility model preferred embodiment.

Embodiment

The utility model will be further described below in conjunction with embodiment.

As shown in Figure 1 and Figure 2, a kind of scrambler, comprise main body 1, center axis body 2, lid 3, housing 4, metallic conductor 5, metallic elastic contact 6, sense of touch elastic body 7, the inside that is provided with the fixed leg 1e of fixing sense of touch elastic body 7 and main body on main body is provided with the resettlement section 1d of Collecting Center axis body 2, is provided with through hole 1c in the center of main body 1; Center axis body 2 is contained in the resettlement section 1d of main part 1, and its positive center is provided with through hole 2d, and back side round boss 2c is that axis hole cooperates with the through hole 1c of main body 1; Lid 3 is assembled in the back side of main body 1, and the lid center is provided with through hole 3a; Housing 4 is fasteners that main body 1, center axis body 2, lid 3, sense of touch elastic body 7 are tightened together, and its center is provided with through hole 4a.

The central through hole 1c of described main body 1 is regular circular design; The front of lid 3 is provided with the pilot hole 3b that cooperates with the reference column 1a assembling that is provided with on the main body 1; The front of housing 4 is provided with the two fixed leg 1e that are provided with on symmetrical two through hole 4b and the main body 1 and cooperates, and the through hole 4a of its center is the hole of sprouting, and the hole of sprouting cooperates with the round boss 2f axis hole of center axis body 2.The quantity 2-6 of reference column 1a and pilot hole 3b, in the present embodiment be three.

As Fig. 1, Fig. 5, shown in Figure 6, main body 1 has the roughly curved rectangular parallelepiped main part in top, the resettlement section 1d that the front of this main part is provided with the heavy stand shape is used for Collecting Center axis body 2, offer two similar rectangular through hole 1g on the 1d of resettlement section, this through hole 1g is used for the passage of the contact point later stage bending and molding processing of metallic elastic contact 6; Being provided with two circular reference column 1e cooperates the center pit 1c that makes main body 1 coaxial with the center pit 4a of housing 4 in the dead ahead of main body 1 with the pilot hole 4b axis hole of housing 4; The back side of main body 1 is provided with circular reference column 1a and is used for cooperating location main body 1 and lid 3 with the pilot hole 3b in lid 3 fronts, makes the center pit of main body 1 and lid 3 keep coaxial.

As shown in Figure 2, the pin 6a of described Elastic Contact body 6 and contact 6d are that conducting one, pin 6b and contact 6e are that conducting one, pin 6c and contact 6f are the conducting one, wherein

6a, 6b, 6c connect for plugging in circuit board (PCB), contact 6d, 6e, 6f are located at same plane, horizontal same horizontal line.

Described metallic conductor 5 is a circular design, be distributed with the trapezoidal hole of 6/9/12/15/18 uniformity such as grade in the above, the central point line angulation of the center of corresponding adjacent trapezoidal hole and metallic conductor 5 is 60 °/40 °/30 °/24 °/20 ° etc.

Function of the present utility model realizes that main metallic conductor 5 and the Elastic Contact body 6 of relying on produces two groups of switching signals that possess phase differential in the even rotation of center axis body 2.The Elastic Contact body 6 that at first can see the scrambler new structure is provided with three contact feet 6a of not conducting mutually own, 6b, 6c, and respectively with contact 6d, 6e, 6f is an one, we can be clearly seen that body interior has three contact point 6d like this, 6e, 6f, this contact point 6d, 6e, the central point line of the Center-to-Center axis body of 6f, the cross central line of these lines and main body is certain differential seat angle, this differential seat angle promptly is the mechanism that phase differential produces, wherein common pin 6a keeps in touch with metallic conductor in the rotation process of center axis body 2 all the time, and in axis body 6 rotating process of the axle center of scrambler, the contact point 6d of metallic elastic contact 6, the Metal Contact part 5b of 6f and metallic conductor, trapezoidal hole part 5a realizes the break-make circulation, and at the pin 6a of metallic elastic contact, 6b, 6c output possesses two groups of switching signals of phase differential.

As shown in Figure 1, the side of described center axis body 2 Z-axises evenly is provided with the circular arc projection 2a of promising 6 integer multiple number and the arc depression 2b of corresponding circular arc projection quantity, circular arc projection 2a and arc depression 2b are that the bamboo formula is arranged between plum blossom, in the encoder operation rotation process, the center position of adjacent two projections or depression and the line angulation of its central point are 30 °/20 °/15 °/12 °/10 ° etc.It is 12 or 18 or 24 or 30 or 36 that the side of described center axis body 2 Z-axises evenly is provided with circular arc projection 2a, and the quantity of arc depression 2b is corresponding with it.

As Fig. 7, shown in Figure 8, center axis body 2 has the circular external shape design, and its positive center is orthohexagonal through hole 2d, and positive hexagonal hole 2d matches with the roller shaft of mouse roller, and the mouse roller axle rolls and 2 rotations of the center of drive axis body; The front of center axis body 2 is provided with the arc convex 2a and the arc-shaped recess 2b of uniformities such as 12 or 18 or 24 or 30 or 36, this projection 2a and depression 2b play the angle of location metallic conductor in rotation process on the one hand, produce paragraph sense with the elastomeric protruding 7a effect of sense of touch on the other hand.Generally sense of touch elastic body 7 is called lattice through adjacent two depressions of center axis body 2.The positive periphery of center axis body 2 is provided with the marginal portion of metallic conductor 5, this this marginal portion 4c is used for center axis body 2 and metallic conductor 5 when injection mo(u)lding, die workpiece suppresses the marginal portion 5c of metallic conductor 5, guarantee the accurate positioning of metallic conductor 5, metallic conductor 5 combines with center axis body 2 after the injection mo(u)lding, during structural design, the center of the trapezoidal hole of metallic conductor 5 and the line of its mid point are the centers over against the protruding 2a of center axis body or depression 2b.

As shown in Figure 3, Figure 4, described housing 4 is a metal shell, is provided with four tightening device 4d, and tightening device 4d is bent into 90 ° by the riveting tool with it in assembling process, after the bending with main body 1, center axis body 2, lid 3 fastenings together.Lid 3 back sides are provided with four heavy stand 3c that match with the tightening device 4d of housing 4, and the design of this heavy stand 3c is to guarantee after 90 ° of the tightening device 4d bendings of housing 4 and firm the combining of lid.

Claims

1. scrambler, comprise main body (1), center axis body (2), lid (3), housing (4), metallic conductor (5), metallic elastic contact (6), sense of touch elastic body (7), it is characterized in that: the inside that is provided with the fixed leg (1e) of fixing sense of touch elastic body (7) and main body on main body is provided with the resettlement section (1d) of Collecting Center axis body (2), is provided with through hole (1c) in the center of main body (1); Center axis body (2) is contained in the resettlement section (1d) of main part (1), and its positive center is provided with through hole (2d), and back side round boss (2c) cooperates for axis hole with the through hole (1c) of main body (1); Lid (3) is assembled in the back side of main body (1), and the lid center is provided with through hole (3a); Housing (4) is the fastener that main body (1), center axis body (2), lid (3), sense of touch elastic body (7) are tightened together, and its center is provided with through hole (4a).

2. scrambler according to claim 1 is characterized in that: the central through hole (1c) of described main body (1) is positive hexagon ring or polygonal hole or elliptical aperture; Lid (3) is provided with at least one and assembles the pilot hole (3b) that cooperates with the reference column (1a) that main body (1) goes up setting; The front of housing (4) is provided with symmetrical two through hole (4b) and cooperates with two fixed legs (1e) axis hole that main body (1) goes up setting, and the through hole of its center (4a) is the hole of sprouting, and the hole of sprouting cooperates with round boss (2e) axis hole of center axis body (2).

3. scrambler according to claim 1 is characterized in that: offer two through holes (1f) on the described main body resettlement section (1d); Fixed leg (1e) in main body 1 cooperates with the pilot hole (4b) of housing (4) and pilot hole (7b) axis hole of sense of touch elastic body 7; The back side of main body (1) is provided with reference column (1a), and the positive pilot hole (3b) of reference column (1a) and lid (3) cooperates the location, makes the maintenance of center pit (3a) of the center pit (1c) of main body (1) and lid (3) concentric.

4. scrambler according to claim 1, it is characterized in that: the pin (6a) of described Elastic Contact body (6) and contact (6d) are the conducting one for conducting one, pin (6b) and contact (6e) for conducting one, pin (6c) and contact (6f), wherein pin (6a), (6b), (6c) connect for inserting PCB, contact (6d), (6e), (6f) design on same plane, horizontal same horizontal line.

5. scrambler according to claim 1, it is characterized in that: described metallic conductor (5) is circular design, be distributed with the trapezoidal hole of 6/9/12/15/18 uniformities in the above, the central point line angulation of the center of corresponding adjacent trapezoidal hole and metallic conductor (5) is 60 °/40 °/30 °/24 °/20 °.

6. scrambler according to claim 1, it is characterized in that: the side of described center axis body (2) Z-axis evenly is provided with the arc depression (2b) of the circular arc projection (2a) and the corresponding circular arc projection quantity of 6 integer multiple number, circular arc projection (2a) and arc depression (2b) are that the bamboo formula is arranged between plum blossom, in the encoder operation rotation process, the center position of adjacent two projections or depression and the line angulation of its central point are 30 °/20 °/15 °/12 °/10 °.

7. scrambler according to claim 1, it is characterized in that: described housing (4) is a metal shell, its positive top is provided with two little square fixed orifices (4c) and two circular fixed orifices (4b) cooperate with the square reference column (1g) and the circular reference column (1e) of main body respectively, dorsal surface at housing (4) also is provided with four tightening devices (4d), tightening device (4d) is bent into 90 ° by the riveting instrument with it in assembling process, after the bending main body (1), center axis body (2), lid (3), sense of touch elastic body are tightened together.

8. scrambler according to claim 6 is characterized in that: it is 12 or 18 or 24 or 30 or 36 that the front of described center axis body (2) Z-axis evenly is provided with circular arc projection (2a), and the quantity of arc depression (2b) is corresponding with it.

9. scrambler according to claim 1, it is characterized in that: the front of described lid (3) is provided with the pilot hole (3b) that matches with the reference column (1a) of main body (1), and its back side is provided with four four heavy stands (3c) that match with the tightening device (4d) of housing (4).

10. scrambler according to claim 1 is characterized in that: the below of described sense of touch elastic body (7) offers pilot hole (7b), and the top is provided with and the projection (2a) of center axis body and the projection (7a) of depression (2b) generation feel paragraph sense.