CN104183420A - Mechanical rotary digital display electronic timer - Google Patents
Mechanical rotary digital display electronic timer Download PDFInfo
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- CN104183420A CN104183420A CN201410419562.XA CN201410419562A CN104183420A CN 104183420 A CN104183420 A CN 104183420A CN 201410419562 A CN201410419562 A CN 201410419562A CN 104183420 A CN104183420 A CN 104183420A
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Abstract
The invention discloses a mechanical rotary digital display electronic timer which is simple to operate, low in cost and capable of setting multiple use functions and operation time through forward and reversing rotation. The timer comprises an LED indication lamp, a dibit nixie tube, a micro switch and a rotary encoding switch, wherein the LED indication lamp is arranged on a circuit board and displays use functions, the dibit nixie tube can display use function operation time, the micro switch is used for determining the use functions and the operation time, and the rotary encoding switch is provided with an elastic contact switch mechanism. The elastic contact switch mechanism comprises two switches, and can generate two kinds of time sequence state signals when a knob rotates anticlockwise or clockwise from a set initial position and send the signals to a control circuit, the two switches can be switched off or switched on at the same time or one switch is switched on or one switch is switched off through the signals, and the control circuit sets the work state of the timer to be in the work state of the use function corresponding to a time sequence state. Setting of the use functions and the corresponding operation time can be finished by rotating the knob for one circle, and operation procedures of household electric appliances are greatly simplified.
Description
Technical field
The present invention relates to a kind of timer, the electronic timer that particularly a kind of mechanical type rotating numeral shows.
Background technology
At present, in household electrical appliances market, timer used can be used as weighs the key factor whether household appliances self have outstanding feature, and it has not only determined the appearance and modeling of household appliances control panel part, and has determined the use function of household appliances.
Take washing machine timer as example: the washing machine, particularly double container washing and extracting machine sold in the market adopt mechanical type rotating timer mostly, and the setting of its timing, is to lean on the angle of rotating machinery knob to decide.Inner portion clockwork spring is as the rotation of machine power driven wheel, the contact clutch of gear drive band moving contact, the energising of the executive component of control apparatus and power-off.The timing of its setting can only indicate to judge this timing from the angle of knob rotation.Due to mechanical type rotating timers all in prior art, its internal structure can only have a kind of timing clutch order, so, this structures shape existing double container washing and extracting machine can only have a kind of single washing or dehydration mode.
And in the market, the timer that single container washing and extracting machine are used, although there is electronic program formula timer, but because circuit structure is complicated, power consumption is large, overall volume is large, cost is improved, in addition, on its guidance panel, button is many, trivial operations, too plenty for the eye to take it all in, the original simple laundry activity that belongs to common physical labor category, be converted into and need learn just spendable loaded down with trivial details mental activity of operation sequence by heart.And current existing rotary electronic timer mostly adopts be rotary encoder as executive component, its complex structure, cost are high, are usually used in having in the equipment of specific (special) requirements.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of simple to operate, cost is low, by rotating, just can set the mechanical type rotating digital display electronic timer of multiple use function and running time.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
Mechanical type rotating digital display electronic timer of the present invention, comprise that an end face is that uncovered another end face is the central shell that is drum-shaped that has hole, bottom and be fixed in the circuit board that contains single chip machine controlling circuit on shell inner bottom surface, the circumferencial direction that is R along radius on described circuit board is evenly provided with several LED light that shows that this timer respectively uses function to open or cut out, at the middle section of this circuit board, be provided with for showing the described use function dibit charactron of running time, being nearby provided with of described dibit charactron, confirm described use function and the microswitch of running time, on this circuit board, be also provided with rotary coding switch, on rotary coding switch, be provided with the elastic touch switching mechanism with the first switch and second switch being connected with circuit board, the initial position that this elastic touch switching mechanism can the knob on described rotary coding switch be set by this timer counterclockwise or the first switch and the second switch that generate while turning clockwise disconnect simultaneously, single closure, simultaneously the control circuit of two kinds of time sequence status signals closed and single disconnection described in being sent to and by this control circuit by the operating state fixation of this timer at the use function operation state corresponding with described time sequence status.
Described circuit board is circular, described microswitch and single-chip microcomputer are placed in the top of described dibit charactron, be also provided with the base of rotary coding switch is fixed on to the pin bores of the location fixing hole on this circuit board, described the first switch and second switch and the button that starts described microswitch closure is fixed in to the blocked hole on circuit board on this circuit board.
Described rotary coding switch is comprised of described base, rotating disk and described elastic touch switching mechanism, described base is provided with the disk of circular medium pore and is positioned at disk by center) rectangular disk of periphery is one-body molded, on the periphery of described medium pore and the neighboring of base, be provided with upwardly extending inward flange and outward flange, in the bottom of base, be provided with the reference column that can insert in the described location fixing hole of being located on circuit board; Described rotating disk, for being arranged at annular fluted disc between inward flange and outward flange, is evenly provided with several knuckle-tooth on the neighboring of this annular fluted disc, and the inward flange of rotating disk is upwardly extending hollow shaft type cylinder, on this cylinder, be provided with can with the screens of described knob clamping; Described elastic touch switching mechanism is arranged in rectangular disk; Described button is placed in described medium pore, and its base is placed in the button top of described microswitch, between this button top cover and charactron, is also provided with back-moving spring.
Described elastic touch switching mechanism is comprised of two groups of the left and right contrary touch switch of structure equidirectional, and every group of touch switch is comprised of electrode slice, trunnion, conductive arm and torsionspring; Described electrode slice is the left pole piece being set up in parallel, middle pole piece and right pole piece, it is close to described outward flange setting, its lower end is connected with control circuit by circuit board, forms the first described switch between left pole piece and middle pole piece, forms described second switch between right pole piece and middle pole piece; The vertical described rectangle card of described trunnion is fixed in the side in this rectangular disk, one end of described conductive arm is connected on described trunnion and with described left pole piece or right pole piece conduction and is connected, its other end is columniform free end, and described torsionspring is enclosed within on described trunnion between between the outward flange of rectangular disk portion and corresponding conductive arm; Free end on two groups of conductive arms is oppositely arranged and under the elastic reaction of corresponding torsionspring, is placed in altogether on described rotating disk in the teeth groove between adjacent two teeth when described initial position; When the knuckle-tooth front on described rotating disk presses the free end on described conductive arm, this free end and described middle pole piece touch and connect the first switch or second switch; When described knuckle-tooth front presses two free ends on conductive arm simultaneously, the free end of two conductive arms touches and connects the first switch and second switch with described middle pole piece simultaneously.
Described knob is hollow shaft type sleeve, is evenly distributed with the anti-skidding striped of projection on this sleeve outward flange, and edge is provided with and this knob can be installed on to location notch and the Elastic buckle on rotating disk cylinder within it, and knob can be synchronizeed and rotate in the same way with rotating disk.
Described LED light is eight.
On button, be provided with the pressure button cover of decoration function, this pressure button cover and button are made by perspex material, and the shape of pressure button cover and button top cover is the circular arc that charactron can be shown to digit optical amplifies.
In described LED light, be also provided with and the scattered light refraction of point-source of light can be become to the snoot that directional light penetrates.
Described control circuit consists of single-chip microcomputer, LED display circuit, charactron circuit and ghyristor circuit, and described rotary coding switch is connected between " P2.3 " pin and " P2.4 " pin of single-chip microcomputer.
Described control circuit consists of single-chip microcomputer, LED display circuit, charactron circuit and ghyristor circuit, and the left pole piece of described rotary coding switch is connected with " P2.3 " pin of single-chip microcomputer, and its right pole piece is connected with " P2.4 " pin, and middle pole piece is connected to the ground.
The present invention be for the rotary digital of appliance design show, based on monolithic processor controlled electronic timer, for the control of household electrical appliance executive component.Owing to having adopted the rotary coding switch with elastic touch switching mechanism, both retained the simple feature easy to use of mechanical type rotating timer operation, the feature again with the flexible and changeable random setting of electronic program timer, is different from the timing function that existing rotation digital display electronic timer can only single setting.Particularly be used on washing machine, not only can set arbitrarily timing but also all use functions (as uses functions such as washing, dehydration, water inlet and drainings) by the mode of rotation knob and all can realize by the mode of rotation knob, only need to use functions and the setting of running time accordingly by operating a timer knob and just can complete several in a swing circle.Greatly simplified the operation sequence of household electrical appliance, all-ages.The present invention sets by simple, can use the upgrading of function or increase and make adaptive change with household appliances.
Compact conformation of the present invention, small and exquisite durable, integrate multiple operating function, its cost is low, easy to use.
Accompanying drawing explanation
Fig. 1 is profile schematic diagram of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 be in Fig. 1 A-A to cutaway view.
Fig. 4 is circuit board schematic diagram of the present invention.
Fig. 5 is Fig. 4 left view.
Fig. 6 is rotary coding switch schematic diagram of the present invention.
Fig. 7 is Fig. 6 vertical view.
Fig. 8 is Fig. 7 left view.
Fig. 9 is button vertical view of the present invention.
Figure 10 be in Fig. 9 B-B to cutaway view.
Figure 11 is pressure button cover vertical view of the present invention.
Figure 12 is Figure 11 left view.
Figure 13 is microswitch schematic diagram of the present invention.
Figure 14 is one of spotlight schematic diagram of the present invention.
Figure 15 is two of spotlight schematic diagram of the present invention.
Figure 16 is three of spotlight schematic diagram of the present invention.
Figure 17 is the vertical view of rotary coding switch of the present invention while being placed in initial position.
Figure 18 is that the rotary coding switch in Figure 17 rotates counterclockwise to the schematic diagram of the first switch when closed.
Figure 19 is that the rotary coding switch in Figure 17 is clockwise to the schematic diagram of second switch when closed.
Figure 20 is that the rotary coding switch in Figure 17 turns to the schematic diagram of first and second switch when all closed.
Figure 21 is C1 portion enlarged diagram in Figure 17.
Figure 22 is D1 portion enlarged diagram in Figure 18.
Figure 23 is E1 portion enlarged diagram in Figure 19.
Figure 24 is F2 portion enlarged diagram in Figure 20.
Figure 25 is circuit theory diagrams of the present invention.
Reference numeral is as follows:
Circuit board 1, single-chip microcomputer 11, LED light 12, dibit charactron 13, microswitch 14, connector socket 15, location fixing hole 16, pin bores 17, blocked hole 18, rotary coding switch 2, base 21, disk 211, rectangular disk 212, inward flange 213, outward flange 214, medium pore 22, rotating disk 23, knuckle-tooth 231, teeth groove 232, screens 233, cylinder 234, reference column 24, elastic touch switching mechanism 3, trunnion 31, conductive arm 32, free end 33, torsionspring 34, left pole piece 35, middle pole piece 36, right pole piece 37, initial position 38, knob 4, sleeve 41, Elastic buckle 42, location notch 43, anti-skidding striped 44, button 5, back-moving spring 51, snap close 52, pressure button cover 6, diffuser 7, shell 8, bottom 9.
Embodiment
Mechanical type rotating digital display electronic timer of the present invention be mainly used in being used for setting on laundry facilities various function of washing clothes (such as being: washing, dehydration, oven dry, water filling or draining etc., hereinafter to be referred as: use function) and running time of corresponding function and for setting multiple different operational mode and the different home appliances of selecting control running time thereof.
As shown in Figure 1, 2, 3, it is by circuit board 1, with the control circuit of single-chip microcomputer 11, is arranged on the setting that shows the LED light 12 (the present invention is eight LED light 12 preferably) of using function gear to open or close on this circuit board 1, uses function dibit charactron 13, the rotary coding switch 2 of running time for showing, is arranged on rotary coding switch 2 and uses function or the knob of running time 4, start and use the button 5 of function operation and shell 8 to form.
Feature of the present invention is on rotary coding switch 2, to be provided with the elastic touch switching mechanism 3 with the first switch and second switch being connected with circuit board 1, the initial position 38 (this timer arranges the resting position at front place at every turn) that this elastic touch switching mechanism 3 can the knob 4 on described rotary coding switch 2 be set by this timer counterclockwise or the first switch and the second switch that generate while turning clockwise disconnect simultaneously, single closure, simultaneously the control circuit of two kinds of time sequence status signals closed and single disconnection described in being sent to and by this control circuit by the operating state fixation of this timer at the use function operation state corresponding with described time sequence status.That is to say, in the single-chip microcomputer 11 of control circuit, be built-in with in advance signal authentication data storehouse, when described knob 4 is counterclockwise or turn clockwise, first the switch of connecting and the later time sequencing of turn on-switch successively can be used as a kind of signal and input to single-chip microcomputer 11, single-chip microcomputer 11 is through the data comparison of storage built-in with it, judgement show that now should be set in that uses function, the then operating state in use function corresponding to described time sequencing by this set timer.
As Fig. 4, shown in 5, described circuit board 1 is circular, described charactron 13 is dibit charactron 13, it is placed in the central authorities of this circuit board 1, be provided with above it microswitch 14 and single-chip microcomputer 11, thereunder the company of being provided with is toward the connector socket 15 outside circuit board 1, the circumferencial direction that described LED light 12 is R along radius evenly arranges, the value of R can be determined according to concrete instrument size, the present invention is preferably not less than 2cm, on this circuit board 1, be also provided with the base of rotary coding switch 2 21 is fixed on to the location fixing hole 16 on this circuit board 1, the first switch in described elastic touch switching mechanism 3 on rotary coding switch 2 and the pin bores 17 of second switch and the blocked hole 18 of affixed this timer button 5.
As shown in figure 25, described control circuit consists of single-chip microcomputer 11, LED display circuit, charactron 13 circuit and ghyristor circuit, and described rotary coding switch 2 is connected between " P2.3 " pin and " P2.4 " pin of single-chip microcomputer 11.The model of described single-chip microcomputer 11 is STC89C52RC, also can use other singlechip chip of the same type.
As shown in Fig. 6,7,8, described rotary coding switch 2 is critical pieces of man-machine interaction, and it is comprised of base 21, rotating disk 23 and described elastic touch switching mechanism 3.
The disk 211 that described base 21 is provided with circular medium pore 22 by center is one-body molded with a rectangular disk 212 that is positioned at disk 211 peripheries, on the periphery of medium pore 22 and the neighboring of base 21, be provided with upwardly extending inward flange 213 and outward flange 214, in the bottom of base 21, be provided with the reference column 24 that can insert in the described location fixing hole 16 of being located on circuit board 1; Described rotating disk 23 is for being arranged at the annular fluted disc between inward flange 213 and outward flange 214, on the neighboring of this annular fluted disc, be evenly provided with several knuckle-tooth 231, between adjacent knuckle-tooth 231, form teeth groove 232, the inward flange of rotating disk 23 is upwardly extending hollow shaft type cylinder 234, on this cylinder 234, be provided with can with the screens 233 of described knob 4 (as shown in Figure 11,12) clamping; Described elastic touch switching mechanism 3 is arranged in rectangular disk 212; Described button 5 is placed in described medium pore 22, and its base is placed in the button top of described microswitch 14, between these button 5 top covers and charactron 13, is also provided with back-moving spring 51.
Described elastic touch switching mechanism 3 is comprised of two groups of the left and right contrary touch switch of structure equidirectional, and every group of touch switch is comprised of electrode slice, trunnion 31, conductive arm 32 and torsionspring 34; Electrode slice described in two groups of touch switchs is to be close to left pole piece 35, middle pole piece 36 and the right pole piece 37 that described outward flange 214 is set up in parallel, left pole piece 35 is connected with " P2.4 " pin with " P2.3 " pin of single-chip microcomputer 11 respectively by circuit board 1 with right pole piece 37, and the middle utmost point is connected to the ground end of circuit board 1.
Vertical described rectangular disk 212 faces of described trunnion 31 are fixed in the side in this rectangular disk 212, one end of described conductive arm 32 is connected on described trunnion 31 and with described left pole piece 35 or right pole piece 37 conductions and is connected, its other end is columniform free end 33, described torsionspring 34 is enclosed within on described trunnion 31, and the two ends holding of this torsionspring 34 is between the outward flange 214 of 212 of rectangular disk and corresponding conductive arm 32.
Free end 33 on two conductive arms 32 is cylindrical, is oppositely arranged therebetween and under the elastic reaction of corresponding torsionspring 34, is placed in altogether the described teeth groove 232 on described rotating disk 23 when described initial position 38.The present invention is preferably set to the width of teeth groove 232 be slightly larger than the diameter of free end 33 cylinders on two conductive arms 32, like this, the described time sequence status signal producing during rotation knob 4, lag time is short.Described knuckle-tooth 231 increments are round and smooth, during rotation knob 4, increment round and smooth on knuckle-tooth 231 touches mutually with the face of cylinder of described free end 33, light lubricious good hand touch when this structure not only can make knob 4 rotate, and, when the turning moment discharging knob 4, free end 33 on described conductive arm 32 is under the elastic force effect of described torsionspring 34, can force very easily rotating disk 23 to return back to inactive state (when the free end 33 on two conductive arms 32 is placed in a teeth groove 232 altogether, being inactive state).
Between left pole piece 35 and middle pole piece 36, form the first described switch, between right pole piece 37 and middle pole piece 36, form described second switch, when timer fixation is during at described initial position, the first switch and second switch are all in off-state (as shown in Figure 17,21).At described rotating disk 23 counterclockwise or while clockwise rotating (rotating knob 4), the free end 33 that knuckle-tooth 231 fronts on it press on described conductive arm 32 can touch this free end 33 and described middle pole piece 36, that is to say, it can be communicated with middle pole piece 36 or right pole piece 37 left pole piece 35 with middle pole piece 36, i.e. closed the first switch or second switch (as shown in Figure 18,19,22,23); When described knuckle-tooth 231 fronts press the free end on two conductive arms 32 when touching with middle pole piece 36 simultaneously, now, simultaneously by the first switch and second switch closed (as shown in Figure 21,24).
Single-chip microcomputer 11 connects by the first switch and the second switch of identification rotary coding switch 2 the front and back state (i.e. described time sequence status) disconnecting, determine that rotary coding switch 2 clockwise rotates or rotates counterclockwise, with this, determine that this timer is current and which kind of should be arranged at use functional status, and by pressing the button the time that microswitch is determined this use function operation that starts.
The mode of single-chip microcomputer 11 identification signals is as follows:
1, a signal identification:
1) when being rotated counterclockwise knob 4, described rotating disk 23 by the first switch and second switch all in off-state (as Figure 17, shown in 21) described initial position (when the free end 33 on two conductive arms 32 is all placed in a teeth groove 232) start to rotate, first to the first switch is closed, second switch off-state is (as Figure 18, shown in 22), then to the first switch, the second switch while, closure state was (as Figure 20, shown in 24), then going to the first switch disconnects, second switch closure state is (as Figure 19, shown in 23), when finally going to two free ends 33 on conductive arm 32 and being placed in altogether adjacent next teeth groove 232, the first switch and second switch again all when off-state (as Figure 17, shown in 21), single-chip microcomputer 11 judgements show that knob 4 has been rotated counterclockwise a signal identification.
2) in like manner,, when turning clockwise knob 4, single-chip microcomputer 11 also judges a signal identification that show that knob 4 has turned clockwise.
2, multiple signal identification:
After completing a signal identification, continuation is counterclockwise or the knob 4 that turns clockwise has repeated the process that a plurality of signals are identified, single-chip microcomputer has rotated several signals identification when just judgement draws counterclockwise or suitable pin, thus, single-chip microcomputer according to be stored in advance wherein use the differentiation data that function is relevant to draw to each, this timer should use functional status at that by fixation.When this timer fixation is when that uses under function, LED light corresponding to corresponding use function highlights.
Above-mentioned signal RM, can improve the quantity of the use function that a knob 4 (revolves in turning around) allow to arrange in a swing circle greatly.Be that single-chip microcomputer 11 just can determine that is used a functional status after completing a signal identification, constantly rotate knob 4 and will constantly repeat signal identifying one time, can obtain many arbitrarily use functional statuses.
Further, by increasing the quantity and the size that reduces free end 33 on conductive arm 32 of described teeth groove 232, can also increase a more signal identifying, can increase more use function.
As shown in Fig. 9,10, described button 5 is coaxially placed in the medium pore 22 of rotary coding switch 2.The snap close 52 of its lower end is plugged on button 5 on circuit board 1 through the blocked hole 18 of being located at described in four on circuit board 1, button 5 is only with the axis direction short distance displacement along medium pore 22, exerting pressure down to circuit board 1 direction displacement (now can open described microswitch 14), after release pressure, under 51 effects of described back-moving spring, upspringing.Pressure button cover 6 is buckled on button 5 as Decorative Cover, except decorating, because end face is that arcwall face and button 5 and pressure button cover 6 are all made by perspex material, so, can see that the demonstration numeral of charactron 13 plays logarithmic code pipe 13 font face amplifications simultaneously.
When pressing button 5, the base of button 5 props up microswitch 14 can be by microswitch 14 (as shown in Fig. 4,13) closure.When release button 5, under the effect of back-moving spring 51, upspring, because snap close 52 is connected on circuit board 1, button 5 can not be come off.
Described knob 4 is hollow shaft type sleeve 41, on these sleeve 41 outward flanges, be evenly distributed with the anti-skidding striped 44 of projection, edge is provided with location notch 43 and the Elastic buckle 42 on the cylinder that this knob 4 can be installed on to described rotating disk 23 within it, and knob 4 can be synchronizeed and rotate in the same way with rotating disk 23.When knob 4 is enclosed within on described rotating disk 23, described location notch 43 and Elastic buckle 42 are connected in the screens 233 of being located on rotating disk 23.
Shell 8 is for mounting circuit boards 1 (as shown in Figure 1,3) and fixed function indicating window, diffuser 7 (as shown in Figure 14,15,16).Shell 8 is shaped as drum-shaped, an one end face is uncovered (hereinafter referred to as bung), the central authorities of another end face (at the bottom of bucket) have circular hole, this shell 8 is downward with its bung, be buckled on described rotary coding switch 2, all through described bucket, the circular hole at the end is placed in outside shell for described knob 4, button 5, and described circuit board 1 is fixed on the inner face at the bottom of shell bucket in the mode outwardly of the dibit charactron 13 on it.
On function indicating window is arranged at the bottom of shell bucket, it is made by transparent material, and its color is made as required, is used as decoration.Diffuser 7 diffuses into directional light as the backlight of function indicating window for the point-like light that LED is sent, when function indicating window is printed word or figure in corresponding plan position approach, corresponding LED light 12 is lighted the profile that can project clearly word and figure.
At the above bunghole part of shell 8, be also provided with the bottom 9 that prevents extraneous dust or moisture attack circuit board 1.
Feature of the present invention is to utilize knob 4 rotation rotary coding switchs 2, and the signal that single-chip microcomputer 11 sends according to rotary coding switch 2 is differentiated direction of rotation, then determines current use function and timing, and concrete operations are as follows:
1) first choice for use function
By rotation (clockwise or counterclockwise) knob 4, complete described a signal identification or multiple signal identification, the use function of application is thought in setting, the corresponding LED light 12 of using function is connected and lighted to single-chip microcomputer 11 according to the time sequence status of knob 4 rotations, now, press the button 5 and confirmed, this timer fixation can be used to operating state corresponding to function at this; Afterwards, release knob 4, under the effect of described torsionspring 34, knob 4 is back to described inactive state.
2) select again timing corresponding to fixed use function
Rotate knob 4, charactron 13 highlights again, if regulation clockwise turns to the time, increases progressively, and is rotated counterclockwise and successively decreases for the time, and single-chip microcomputer 11 is to increase or reduce according to orientation determination charactron 13 displaying times of knob 4 rotations.By secondary rotating knob 4, determine the operating time under the use function having set.Charactron 13 show values are " 99 " to the maximum, and minimum is " 0 ", and its numerical value can directly be seen the numeral of demonstration by transparent knob 4.
Further, can also be according to pressing the button 5 time length and pressing the conversion that number of times carries out charactron 13 timings demonstrations and LED light 12 Fumction displays.When being transformed under LED light 12 Fumction display states, 4 of knobs of rotation are arranged in the LED light 12 of knob 4 peripheries, can be shifted one by one according to the direction of rotation of knob 4 and light (order lighting can be carried out according to designing program in advance).Each LED light 12 represents a kind of operating state determining under use function, and LED light 12 lights and represents that the corresponding function of using is activated.Be arranged in LED light 12 quantity of knob 4 peripheries, can according to design use function number determine.
In order to express accurately the use function of setting, corresponding each LED light 12 position on function indicating window, indicate the corresponding sign of using function with word or icon.
In sum, each uses function can set arbitrary timing time span between numerical value 0-99, reaches the timing setting of difference in functionality different time.
Claims (10)
1. a mechanical type rotating digital display electronic timer, comprise that an end face is that uncovered another end face is the central shell that is drum-shaped (8) that has hole, bottom (9) and be fixed in the circuit board (1) that contains single-chip microcomputer (11) control circuit on shell (8) inner bottom surface, it is characterized in that: at described circuit board (1), the upper circumferencial direction that is R along radius is evenly provided with the LED light (12) that several show that this timer respectively uses function to open or cut out, at the middle section of this circuit board (1), be provided with for showing the described use function dibit charactron (13) of running time, being nearby provided with of described dibit charactron (13), confirm described use function and the microswitch of running time (14), on this circuit board (1), be also provided with rotary coding switch (2), on rotary coding switch (2), be provided with the elastic touch switching mechanism (3) with the first switch and second switch being connected with circuit board (1), the initial position (38) that this elastic touch switching mechanism (3) can the knob (4) on described rotary coding switch (2) be set by this timer counterclockwise or the first switch and the second switch that generate while turning clockwise disconnect simultaneously, single closure, simultaneously the control circuit of two kinds of time sequence status signals closed and single disconnection described in being sent to and by this control circuit by the operating state fixation of this timer at the use function operation state corresponding with described time sequence status.
2. mechanical type rotating digital display electronic timer according to claim 1, it is characterized in that: described circuit board (1) is for circular, described microswitch (14) and single-chip microcomputer (11) are placed in the top of described dibit charactron (13), be also provided with the base of rotary coding switch (2) (21) is fixed on to the pin bores (17) of the location fixing hole (16) on this circuit board (1), described the first switch and second switch and is fixed in the blocked hole (18) on circuit board (1) by starting the button (5) that described microswitch (14) is closed on this circuit board (1).
3. mechanical type rotating digital display electronic timer according to claim 2, it is characterized in that: described rotary coding switch (2) is by described base (21), rotating disk (23) and described elastic touch switching mechanism (3) form, described base (21) is provided with the disk (211) of circular medium pore (22) by center and is positioned at the rectangular disk (212) of disk (211) periphery one-body molded, on the periphery of described medium pore (22) and the neighboring of base (21), be provided with upwardly extending inward flange (213) and outward flange (214), in the bottom of base (21), be provided with the reference column (24) that can insert in the described location fixing hole (16) of being located on circuit board (1), described rotating disk (23) is for being arranged at annular fluted disc between inward flange (213) and outward flange (214), on the neighboring of this annular fluted disc, be evenly provided with several knuckle-tooth (231), the inward flange of rotating disk (23) is upwardly extending hollow shaft type cylinder (234), on this cylinder (234), be provided with can with the screens (233) of described knob (4) clamping, described elastic touch switching mechanism (3) is arranged in rectangular disk (212), described button (5) is placed in described medium pore (22), and its base is placed in the button top of described microswitch (14), between this button (5) top cover and charactron (13), is also provided with back-moving spring (51).
4. mechanical type rotating digital display electronic timer according to claim 3, it is characterized in that: described elastic touch switching mechanism (3) is comprised of two groups of the left and right contrary touch switch of structure equidirectional, every group of touch switch is comprised of electrode slice, trunnion (31), conductive arm (32) and torsionspring (34); Described electrode slice is the left pole piece (35) being set up in parallel, middle pole piece (36) and right pole piece (37), it is close to described outward flange (214) setting, its lower end is connected with control circuit by circuit board (1), between left pole piece (35) and middle pole piece (36), form the first described switch, between right pole piece (37) and middle pole piece (36), form described second switch; The vertical described rectangular disk of described trunnion (31) (212) face is fixed in the side in this rectangular disk (212), one end of described conductive arm (32) is connected to described trunnion (31) above and is connected with described left pole piece (35) or right pole piece (37) conduction, its other end is columniform free end (33), and described torsionspring (34) is enclosed between the upper outward flange (214) between rectangular disk (212) portion of described trunnion (31) and corresponding conductive arm; Free end (33) on two groups of conductive arms (32) is oppositely arranged and under the elastic reaction of corresponding torsionspring (34), is placed in altogether in the teeth groove (232) between upper adjacent two teeth of described rotating disk (23) when described initial position (38); When knuckle-tooth (231) front on described rotating disk (23) presses the free end (33) on described conductive arm (32), this free end (33) touches and connects the first switch or second switch with described middle pole piece (36); When described knuckle-tooth (231) front presses the free end (33) on two conductive arms (32) simultaneously, the free end (33) of two conductive arms (32) touches and connects the first switch and second switch with described middle pole piece (36) simultaneously.
5. mechanical type rotating digital display electronic timer according to claim 3, it is characterized in that: described knob (4) is hollow shaft type sleeve (41), on this sleeve (41) outward flange, be evenly distributed with the anti-skidding striped (44) of projection, edge is provided with location notch (43) and the Elastic buckle (42) that this knob (4) can be installed on rotating disk (23) cylinder (234) within it, and knob (4) can be synchronizeed and rotate in the same way with rotating disk (23).
6. according to the mechanical type rotating digital display electronic timer described in any one in claim 2-5, it is characterized in that: described LED light (12) is eight.
7. according to the mechanical type rotating digital display electronic timer described in any one in claim 3-5, it is characterized in that: the pressure button cover (6) that has been provided with decoration function on button (5), this pressure button cover (6) is made by perspex material with button (5), and pressure button cover (6) is and charactron (13) can be shown to the circular arc that digit optical amplifies with the shape of button (5) top cover.
8. mechanical type rotating digital display electronic timer according to claim 6, is characterized in that: in described LED light (12), be also provided with and the scattered light refraction of point-source of light can be become to the snoot that directional light penetrates.
9. mechanical type rotating digital display electronic timer according to claim 2, it is characterized in that: described control circuit consists of single-chip microcomputer (11), LED display circuit, charactron circuit and ghyristor circuit, and described rotary coding switch (2) is connected between " P2.3 " pin and " P2.4 " pin of single-chip microcomputer (11).
10. mechanical type rotating digital display electronic timer according to claim 4, it is characterized in that: described control circuit consists of single-chip microcomputer (11), LED display circuit, charactron circuit and ghyristor circuit, the left pole piece (35) of described rotary coding switch (2) is connected with " P2.3 " pin of single-chip microcomputer (11), its right pole piece (37) is connected with " P2.4 " pin, and middle pole piece (36) is connected to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419562.XA CN104183420B (en) | 2014-08-25 | 2014-08-25 | Mechanical rotary digital display electronic timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419562.XA CN104183420B (en) | 2014-08-25 | 2014-08-25 | Mechanical rotary digital display electronic timer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104183420A true CN104183420A (en) | 2014-12-03 |
| CN104183420B CN104183420B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419562.XA Expired - Fee Related CN104183420B (en) | 2014-08-25 | 2014-08-25 | Mechanical rotary digital display electronic timer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104183420B (en) |
Cited By (4)
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| CN104616924A (en) * | 2015-01-30 | 2015-05-13 | 何杰恩 | Control device |
| WO2018059229A1 (en) * | 2016-09-28 | 2018-04-05 | 青岛海尔滚筒洗衣机有限公司 | Washing machine knob and washing machine |
| CN111616623A (en) * | 2020-06-17 | 2020-09-04 | 佛山市星曼信息科技有限公司 | Foot bath device with novel control device |
| CN117031990A (en) * | 2023-08-02 | 2023-11-10 | 大拓(山东)物联网科技有限公司 | Household appliance control method, device, equipment and storage medium based on knob screen |
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| CN117031990A (en) * | 2023-08-02 | 2023-11-10 | 大拓(山东)物联网科技有限公司 | Household appliance control method, device, equipment and storage medium based on knob screen |
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| Publication number | Publication date |
|---|---|
| CN104183420B (en) | 2017-02-15 |
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