CN203942665U - Machinery frequency conversion timer - Google Patents
Machinery frequency conversion timer Download PDFInfo
- Publication number
- CN203942665U CN203942665U CN201420339700.9U CN201420339700U CN203942665U CN 203942665 U CN203942665 U CN 203942665U CN 201420339700 U CN201420339700 U CN 201420339700U CN 203942665 U CN203942665 U CN 203942665U
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- shell
- gear
- drive motors
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Abstract
A kind of mechanical frequency conversion timer, output shaft and power Control Shaft while comprising shell, drive motors, control, drive motors comprises the motor output gear joining with it, in shell, be provided with reduction gearing mechanism, gear when this reduction gearing mechanism comprises control, motor output gear with when control gear engage, one end of timing driving lever is hinged in shell, one end of the first electrode and the second electrode joins with shell respectively, the other end of timing driving lever is crimped between the second electrode and cam, when cam and control, gear joins, and when when control, gear is with control, output shaft coaxially arranges.The two poles of the earth of drive motors join with the second electrode and third electrode respectively, and third electrode and the first electrode switch on power respectively.Drive motors is arranged on shell, and bell clock joins by support and shell, and striker joins with one end of timing driving lever.Manufacture craft of the present utility model is fairly simple, and service behaviour is also more stable, has simple and reasonable, flexible operation, feature that cost of manufacture is low.
Description
Technical field
The utility model relates to a kind of mechanical timer, particularly a kind of mechanical frequency conversion timer.
Background technology
Timer is an important spare part of microwave oven, be mainly used in controlling power and the operating time of microwave oven, the microwave stove timer of supply mostly is mechanical timer in the market, be that timing is controlled by the gear reduction in timer, power switches by the gear drive in timer, and drive the inside driving lever control silver contact in timer to switch, thereby control the size of microwave oven output power, in other words the time of contact of silver contact longer, power is larger.
In the time controlling timing and power, there is larger error in this mechanical timer of being controlled by mechanical structure; In addition, because power control is to be undertaken by the switching of silver contact, the switching that becomes large and silver contact along with the operating power of microwave oven is frequent, and silver contact easily burns.Therefore, current microwave oven by the shortcoming that mechanical timer exists is: the control performance of mechanical structure is unstable, how contact easily causes comparatively difficulty of burning machine, change control program.
Chinese patent literature CN 201123149Y discloses a kind of microwave stove timer on September 24th, 2008, comprise time rotating shaft and power rotating shaft, also comprise power stage electronic controller, described power stage electronic controller comprises that power input part divides, working signal importation, power variable signal importation and output, wherein working signal importation connects with time rotating shaft, and power variable signal importation is connected with power rotating shaft.
Utility model content
The purpose of this utility model aims to provide a kind of simple and reasonable, flexible operation, mechanical frequency conversion timer that cost of manufacture is low, to overcome weak point of the prior art.
By the one machinery frequency conversion timer of this object design, comprise shell, drive motors, output shaft and power Control Shaft when control, its architectural feature is that drive motors comprises the motor output gear joining with it, in shell, be provided with reduction gearing mechanism, gear when this reduction gearing mechanism comprises control, motor output gear with when control gear engage, one end of timing driving lever is hinged in shell, one end of the first electrode and the second electrode joins with shell respectively, the other end of timing driving lever is crimped between the second electrode and cam, when cam and control, gear joins, when when control, gear is with control, output shaft coaxially arranges.
Further, the two poles of the earth of described drive motors join with the second electrode and third electrode respectively, and third electrode and the first electrode switch on power respectively.
Further, described drive motors is arranged on shell, and bell clock joins by support and shell, and striker joins with one end of timing driving lever.
Further, mechanical frequency conversion timer also comprises variable frequency control plate, and deflection machine VR1 and buzzer BP1 are arranged on variable frequency control plate, and the rotating shaft of power Control Shaft and deflection machine VR1 is joined.
Further, described shell and cover plate join.
Further, described cover plate and base plate join, and variable frequency control plate is arranged on base plate.
Further, on described motor output gear, be provided with the sour jujube type tooth for preventing drive motors reversion.
The utility model adopts after above-mentioned technical scheme, reduction gearing mechanism output shaft when controlling is set running time, contacting when control, and drive motors output gear drives the each reduction gearing entry into service in reduction gearing mechanism, disconnect at the time back contact that has moved setting, and point out with stroke.
Variable frequency control plate in the utility model is arranged on base plate, is realized the adjusting of light wave power, microwave power by power Control Shaft, and power Control Shaft is connected with deflection machine, and buzzer can be pointed out with buzzer in the time of microwave and light wave switching or integrated mode.
The utility model is all designed with pilot hole on shell and cover plate, and screw is installed can be directly directly fixed on this product on microwave oven through pilot hole; On cover plate, be designed with multiple button bits, button bit is directly buckled in can be fastening on shell, install and dismounting all more for convenience, and connect firm.
Timing in the utility model is controlled by reduction gearing mechanism, and power switches to be controlled by variable frequency control plate, by changing the resistance of deflection machine, realizes microwave power and switches arbitrarily between 0W～1340W, operates suitable simple and flexibly.
The utility model can be changed parts according to market demands, just modification time control easily or program control, and versatility is stronger; The faults such as under-voltage, overvoltage to microwave oven, overcurrent, excess temperature play a protective role.
Manufacture craft of the present utility model is fairly simple, power is accurate, pass through converter technique, in the scope of rated power, can realize any adjusting 0, form Different lightwave wavelength, utilize frequency conversion light-wave cooker to roast culinary art and can save time approximately 30%, the service behaviour of product is also more stable, has simple and reasonable, flexible operation, feature that cost of manufacture is low.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the utility model one embodiment.
Fig. 2 is schematic perspective view of the present utility model.
Fig. 3 is timing function circuit control schematic diagram of the present utility model.
Fig. 4 is schematic top plan view of the present utility model.
Fig. 5 is the schematic perspective view of frequency changer circuit plate.
Fig. 6 is that the master of frequency changer circuit plate looks schematic diagram.
Fig. 7 is variable frequency control plate circuit control schematic diagram
In figure: 1 be timing driving lever, 2 is the first reduction gearing, 3 is the second reduction gearing, 4 for the time control depression bar, 5 is the 3rd reduction gearing, 6 is the 4th reduction gearing, 7 be cam, 8 be control time gear,
9 is the first electrode, and 10 is the second electrode, and 23 is third electrode, 11 is when control output shaft, and 12 is motor output gear, and 13 is base plate, 14 is power Control Shaft, and 15 is plug, and 16 is variable frequency control plate, 17 is support, and 18 is bell clock, and 19 is drive motors, 20 is cover plate, and 21 is shell, and 22 is striker, BP1 is buzzer, VR1 deflection machine
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1-Fig. 7, this mechanical frequency conversion timer, comprise shell 21, drive motors 19, output shaft 11 and power Control Shaft 14 when control, drive motors 19 comprises the motor output gear 12 joining with it, in shell 21, be provided with reduction gearing mechanism, gear 8 when this reduction gearing mechanism comprises control, motor output gear 12 with when control gear 8 engage, one end of timing driving lever 1 is hinged in shell 21, one end of the first electrode 9 and the second electrode 10 joins with shell 21 respectively, the other end of timing driving lever 1 is crimped between the second electrode 10 and cam 7, when cam 7 and control, gear 8 joins, when when control, gear 8 is with control, output shaft 11 coaxially arranges.
In the present embodiment, the two poles of the earth of drive motors 19 join with third electrode 23 with the second electrode 10 respectively, and third electrode 23 and the first electrode 9 switch on power respectively, see Fig. 3.
Drive motors 19 is arranged on shell 21, and bell clock 18 joins by support 17 and shell 21, and striker 22 joins with one end of timing driving lever 1.
Machinery frequency conversion timer also comprises variable frequency control plate 16, and deflection machine VR1 and buzzer BP1 are arranged on variable frequency control plate 16, and power Control Shaft 14 joins with the rotating shaft of deflection machine VR1, sees Fig. 5-Fig. 7.
Described shell 21 joins with cover plate 20.
Described cover plate 20 joins with base plate 13, and variable frequency control plate 16 is arranged on base plate 13.
On described motor output gear 12, be provided with the sour jujube type tooth for preventing that drive motors 19 from reversing.
Motor output gear engages with the reduction gearing in reduction gearing mechanism by the location hole on shell, and motor output gear is provided with sour jujube type tooth, stops in running and occurs that Reversion appears in the rotor of drive motors 19.
Reduction gearing mechanism also comprises the first reduction gearing 2, the second reduction gearing 3, the 3rd reduction gearing 5 and the 4th reduction gearing 6, and wherein, when control, gear 8 engages with motor output gear 12; Motor output gear 12 engages with the 4th reduction gearing 6; When the 4th reduction gearing 6 drives the 3rd reduction gearing 5, the second reduction gearing 3, the first reduction gearing 2, control, gear 8 slows down step by step; Time is controlled depression bar 4 and in running, passes through to change angle, and changes the mesh degree of the 3rd reduction gearing 5, thereby changes the rotating speed of subordinate's reduction gearing, to reach the effect of total timing process variable-ratio.
When work, during by control, gear 8 rotates and is with moving cam 7 to rotate simultaneously, and cam 7, in rotation process, changes the angle of directed driving lever 1 by the different radian of self, thereby controls the energising duration of the first electrode and the second electrode.
When making, drive motors can be arranged on the back side of shell, on the housing of drive motors, be designed with button bit, can directly the housing of drive motors be buckled on the back side of shell.When control, gear 8 is with control, output shaft 11 is riveted and is integrated by riveting.Motor output gear 12 and drive motors rotor integrated through injection molding, realize synchronous speed.
Drive motors 19 is buckled in shell 21, bell clock 18 and support 17 riveting one, support 17 again by fastened by screw on shell 21, striker 22 is connected to timing driving lever 1.
In the time that the first electrode 9 and the second electrode 10 disconnect, timing driving lever 1 drives striker 22 to strike fast bell clock 18, finishes with the timing of the tinkle of bells prompting timer.
Base plate 13 is the connectors for connecting variable frequency microwave furnace panel and whole mechanical frequency conversion timer, and base plate 13 is riveted on cover plate 20.
Variable frequency control plate 16 is fastened on base plate, and time output shaft 11 passes base plate 13 with power Control Shaft 14.
Back-plane design has through hole, passes through hole just whole mechanical frequency conversion timer can be fixed on microwave oven panel with screw.
Rotative power Control Shaft 14 can change VR1 potential value, and along with the change of potential value, the mode of operation of microwave oven and power are along with change, as shown in Table 1.
Table one
| VR1 | Input power |
| 0-0.45K | Light wave pattern, 800W |
| 0.55K-0.9K | Integrated mode, light wave 800W, microwave 720W input |
| 1.1K-2K | Microwave mode, break-make mode of operation, 0-500W is adjustable continuously |
| 2K-5.1K | Microwave mode, 500W-1340W is adjustable continuously |
If while being set in 0～0.45K, microwave oven is in optical wave heating pattern, and power is 800W; Buzzer BP1 sounds a buzzer in the time of light wave and microwave switching, pipes when continuing to be interrupted, and represents that the system failure also quits work;
Power input and signal controlling end that described terminal plug 15 is variable frequency control plate 16.
Claims (7)
1. a mechanical frequency conversion timer, comprise shell (21), drive motors (19), output shaft when control (11) and power Control Shaft (14), it is characterized in that drive motors (19) comprises the motor output gear (12) joining with it, shell is provided with reduction gearing mechanism in (21), gear (8) when this reduction gearing mechanism comprises control, motor output gear (12) engages with when control gear (8), one end of timing driving lever (1) is hinged in shell (21), one end of the first electrode (9) and the second electrode (10) joins with shell (21) respectively, the other end of timing driving lever (1) is crimped between the second electrode (10) and cam (7), when cam (7) and control, gear (8) joins, when gear when control (8) and control, output shaft (11) coaxially arranges.
2. mechanical frequency conversion timer according to claim 1, the two poles of the earth that it is characterized in that described drive motors (19) join with the second electrode (10) and third electrode (23) respectively, and third electrode (23) switches on power respectively with the first electrode (9).
3. mechanical frequency conversion timer according to claim 2, it is characterized in that described drive motors (19) is arranged on shell (21), bell clock (18) joins by support (17) and shell (21), and striker (22) joins with one end of timing driving lever (1).
4. mechanical frequency conversion timer according to claim 3, it is characterized in that also comprising variable frequency control plate (16), it is upper that deflection machine VR1 and buzzer BP1 are arranged on variable frequency control plate (16), and power Control Shaft (14) joins with the rotating shaft of deflection machine VR1.
5. mechanical frequency conversion timer according to claim 4, is characterized in that described shell (21) and cover plate (20) join.
6. mechanical frequency conversion timer according to claim 5, is characterized in that described cover plate (20) and base plate (13) join, and variable frequency control plate (16) is arranged on base plate (13).
7. according to the arbitrary described mechanical frequency conversion timer of claim 1 to 6, it is characterized in that being provided with on described motor output gear (12) the sour jujube type tooth for preventing drive motors (19) reversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339700.9U CN203942665U (en) | 2014-06-21 | 2014-06-21 | Machinery frequency conversion timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339700.9U CN203942665U (en) | 2014-06-21 | 2014-06-21 | Machinery frequency conversion timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203942665U true CN203942665U (en) | 2014-11-12 |
Family
ID=51861946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339700.9U Withdrawn - After Issue CN203942665U (en) | 2014-06-21 | 2014-06-21 | Machinery frequency conversion timer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203942665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113944A (en) * | 2014-06-21 | 2014-10-22 | 广东格兰仕集团有限公司 | Mechanical frequency conversion timer |
-
2014
- 2014-06-21 CN CN201420339700.9U patent/CN203942665U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113944A (en) * | 2014-06-21 | 2014-10-22 | 广东格兰仕集团有限公司 | Mechanical frequency conversion timer |
| CN104113944B (en) * | 2014-06-21 | 2016-11-02 | 广东格兰仕集团有限公司 | Machinery frequency conversion intervalometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |