CN202893785U - External dust collection device for currency-counting machine - Google Patents
External dust collection device for currency-counting machine Download PDFInfo
- Publication number
- CN202893785U CN202893785U CN 201220602134 CN201220602134U CN202893785U CN 202893785 U CN202893785 U CN 202893785U CN 201220602134 CN201220602134 CN 201220602134 CN 201220602134 U CN201220602134 U CN 201220602134U CN 202893785 U CN202893785 U CN 202893785U
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- China
- Prior art keywords
- paper money
- external dust
- money counter
- exhaust apparatus
- dust exhaust
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an external dust collection device for a currency-counting machine. The device comprises a negative pressure dust collection device and a control circuit thereof, wherein the negative pressure dust collection device is provided with an independent shell; the shell is provided with a suction inlet, an exhaust outlet and a power socket for providing a working power supply for the currency-counting machine; a dust filter screen is arranged on the exhaust outlet; and the control circuit controls the external dust collection device and the currency-counting machine connected to the power socket to run in a linkage mode. The independent shell is arranged, and a high-power dust collector (dust collection fan) can be arranged on the external dust collection device for the currency-counting machine, so a dust collection effect is good; and meanwhile, the control circuit is arranged and controls the external dust collection device and the currency-counting machine connected to the power socket to run in a linkage mode, so a control switch is not required to be added, and the external dust collection device is very convenient to use like the independently used currency-counting machine.
Description
Technical field
The utility model relates to a kind of dust exhaust apparatus, particularly the external dust exhaust apparatus of a kind of paper money counter.
Background technology
Along with socioeconomic development, can use a large amount of cashes in the field of circulation, therefore many occasions are checked cash with paper money counter.Because cash circumstance complication in the process of circulation, can be stained with dust unavoidably, cause paper money counter in checking the bank note process, also can produce a large amount of dusts, comprise each bacterioid and virus in these dusts, so that the severe contamination surrounding enviroment, the infringement staff's is healthy.In order to avoid the impact on surrounding enviroment and staff as far as possible, existing paper money counter generally is built-in with dust catcher, but is subjected to its structure and spatial constraints, and the power of blower fan (air quantity) is minimum, effectively pollution abatement.
Summary of the invention
The purpose of this utility model is to provide in order to overcome the deficiencies in the prior art a kind of external dust exhaust apparatus of paper money counter of the most of dust that produces can effectively absorb paper money counter work the time.
To achieve these goals, the utility model discloses the external dust exhaust apparatus of a kind of paper money counter, comprise negtive pressure dusting device and control circuit thereof, it is characterized in that: described negtive pressure dusting device is provided with an independently housing, described housing is provided with inlet scoop, exhaust outlet and the supply socket of working power is provided for paper money counter, exhaust outlet is provided with dirt filtrating screen, and described control circuit is controlled described external dust exhaust apparatus and the paper money counter coordinated operation that is connected in the described supply socket.
Compared with prior art, by an independently housing is set, the external dust exhaust apparatus of paper money counter can be installed the dust catcher (dust absorption fan) of relatively high power, and therefore better pick-up performance is arranged; Simultaneously, control described external dust exhaust apparatus and the paper money counter coordinated operation that is connected in the described supply socket owing to also be provided with control circuit, need not to arrange in addition gauge tap, the same, very easy to use with independent use paper money counter.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment outward appearance front view;
Accompanying drawing 2 is the utility model specific embodiment rearview;
Accompanying drawing 3 is the utility model specific embodiment side view;
Accompanying drawing 4 is the utility model specific embodiment internal structure cutaway view;
Accompanying drawing 5 is that the external dust exhaust apparatus of this paper money counter uses state reference map;
Accompanying drawing 6 is the utility model specific embodiment control circuit schematic diagram.
The specific embodiment
Specific embodiment
As Figure 1-3, the external dust exhaust apparatus of paper money counter comprises negtive pressure dusting device and control circuit thereof, described negtive pressure dusting device is provided with an independently housing 1, the shape of housing 1 can arrange as required, it is cuboid in this specific embodiment, described inlet scoop 2, exhaust outlet 3 are separately positioned on the front and the back side of housing 1, are arranged on the sidewall for paper money counter provides the supply socket 4 of working power, and housing 1 can be made by plastic material.For the ease of cleaning, the part that described housing 1 is provided with exhaust outlet 3 is that backboard and housing 1 remainder of housing 1 is the split setting, exhaust outlet 3 adopts the shutter formatting, the slot 5 that the upper and lower sides panel edges setting that is connected with backboard at housing 1 remainder matches, both peg graft to consist of and removably connect.As shown in Figure 4, the core of negtive pressure dusting device is an axial-flow type induced-draught fan 6, axial-flow type induced-draught fan 6 is arranged in the inner chamber of housing 1, the air inlet cover of axial-flow type induced-draught fan 6 is on inlet scoop 2, in order to prevent the impact on surrounding environment and operating personnel, the exhaust outlet 3 of backboard is provided with dirt filtrating screen 7 and escapes with blocks dust; In addition, in order further to improve dust collection efficiency, be provided with the kuppe 9 that matches with the paper money counter cash dispensing port in the inlet scoop 2 of housing.Another critical part control circuit of the external dust exhaust apparatus of this paper money counter is arranged in the housing 1 too, and the effect of described control circuit is the described external dust exhaust apparatus of control and the paper money counter coordinated operation that is connected in the described supply socket 4.The total technical scheme of described control circuit is to comprise current detecting unit, current signal amplifying unit and the negtive pressure dusting device driver element that is connected in the described supply socket circuit, detect the operating current signal that is connected to the paper money counter in the described supply socket 4 by described current detecting unit, and described operating current signal inputed to the current signal amplifying unit, described current signal amplifying unit output control negtive pressure dusting device driver element.As shown in Figure 6, in this specific embodiment, described current detecting unit comprises that the current sampling resistor R1 that is connected in the described supply socket circuit reaches the circuit of LED of the infrarede emitting diode D2 in parallel with current sampling resistor R1 and current-limiting resistance R2 composition; Described current signal amplifying unit is by comprising that operational amplifier U2A and U2B are that the comparison amplifying circuit that core forms consists of, one of input of described relatively amplifying circuit is provided with the light-sensitive element corresponding with described light emitting diode, has selected phototriode U1 in this specific embodiment; Described negtive pressure dusting device driver element is that core consists of by high-power switch tube such as FET Q1, described high-power switch tube is serially connected in the working power of external dust exhaust apparatus, and the output of described relatively amplifying circuit is connected its break-make of control through the delay circuit that diode D3 is connected with resistance R, capacitor C 3 forms with the grid of FET Q1.In addition, also be provided with transformer T1 and rectification circuit D5-D9 and mu balanced circuit IC1 in the control circuit and provide dc supply for operational amplification circuit and axial-flow type induced-draught fan 6.
For so that the external dust exhaust apparatus of paper money counter can more firmly be worked, be provided with balancing weight 8 at housing 1 intracavity bottom, balancing weight 8 can be metal material, such as iron block or copper billet etc.
The external dust exhaust apparatus operation principle of paper money counter is as follows:
The machine controlFile location, when paper money counter counting (running), the electric current of power supply is by about 3 ohm of R1() power-frequency voltage that produces about 1.5V makes infrarede emitting diode D2 light (half-wave), be converted to the signal of telecommunication and amplification through phototriode Q1 reception, deliver to operational amplifier U2B(comparator by capacitor C 1 filtering by resistance R 4) 6 pin, when the level of 6 pin is higher than 5 pin level (1/2VCC), 7 pin are output as negative (less than 1/2VCC), deliver to the U2A(comparator through resistance R 7) 2 pin, the level of 3 pin is higher than 2 pin level, 1 pin of operational amplifier U2A just is output as, by diode D3 capacitor C 3 is charged, capacitor C 3 will soon be charged to the grid control level that makes FET Q1 conducting, then FET Q1 conducting, the running of axial-flow type induced-draught fan; When the paper money counter counting finishes (standby), the electric current of the resistance R of flowing through 1 is very little, the pressure drop deficiency that produces so that infrarede emitting diode D2 light, the level of 6 pin of U2B is lower than 5 pin level, 7 pin output high level (greater than 1/2VCC), deliver to 2 pin of operational amplifier U2A through resistance R 7,1 pin of operational amplifier U2A is output as negative, capacitor C 3 is through resistance R 8 discharges, delay time after some seconds time, voltage on the capacitor C 3 will be down to deficiency so that the level of FET Q1 conducting, at this moment FET Q1 cut-off, the stall of axial-flow type induced-draught fan.
ContinuouslyFile location, no matter paper money counter counting (running) whether, the axial-flow type induced-draught fan always electric, be in continuous dust suction state.
Claims (7)
1. external dust exhaust apparatus of paper money counter, comprise negtive pressure dusting device and control circuit thereof, it is characterized in that: described negtive pressure dusting device is provided with an independently housing, described housing is provided with inlet scoop, exhaust outlet and the supply socket of working power is provided for paper money counter, exhaust outlet is provided with dirt filtrating screen, and described control circuit is controlled described external dust exhaust apparatus and the paper money counter coordinated operation that is connected in the described supply socket.
2. the external dust exhaust apparatus of paper money counter according to claim 1, it is characterized in that: described control circuit comprises current detecting unit, current signal amplifying unit and the negtive pressure dusting device driver element that is connected in the described supply socket circuit, described current detecting unit detects the operating current signal that is connected to the paper money counter in the described supply socket, and described operating current signal inputed to the current signal amplifying unit, described current signal amplifying unit output control negtive pressure dusting device driver element.
3. the external dust exhaust apparatus of paper money counter according to claim 2 is characterized in that: described current detecting unit comprises current sampling resistor and the circuit of LED in parallel with current sampling resistor that is connected in the described supply socket circuit; Described current signal amplifying unit is by comprising that the comparison amplifying circuit that operational amplifier forms consists of, and one of input of described relatively amplifying circuit is provided with the light-sensitive element corresponding with described light emitting diode; Described negtive pressure dusting device driver element is that core consists of by high-power switch tube, and described high-power switch tube is serially connected in the working power of external dust exhaust apparatus.
4. the external dust exhaust apparatus of paper money counter according to claim 1, it is characterized in that: the inlet scoop of described housing is provided with the kuppe that matches with the paper money counter cash dispensing port.
5. the external dust exhaust apparatus of paper money counter according to claim 1, it is characterized in that: described housing bottom is provided with balancing weight.
6. the external dust exhaust apparatus of paper money counter according to claim 1 is characterized in that: the part that described housing is provided with exhaust outlet and housing remainder are for removably connecting, and described dirt filtrating screen is fixed on the exhaust outlet.
7. the external dust exhaust apparatus of paper money counter according to claim 6, it is characterized in that: described housing remainder is provided with the slot that matches with the part that is provided with exhaust outlet, and both peg graft and consist of described removably connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602134 CN202893785U (en) | 2012-11-14 | 2012-11-14 | External dust collection device for currency-counting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602134 CN202893785U (en) | 2012-11-14 | 2012-11-14 | External dust collection device for currency-counting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202893785U true CN202893785U (en) | 2013-04-24 |
Family
ID=48114505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602134 Expired - Fee Related CN202893785U (en) | 2012-11-14 | 2012-11-14 | External dust collection device for currency-counting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202893785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108001052A (en) * | 2017-12-25 | 2018-05-08 | 常州雷宁电磁屏蔽设备有限公司 | Printer Special electromagnetic shields cabinet |
-
2012
- 2012-11-14 CN CN 201220602134 patent/CN202893785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108001052A (en) * | 2017-12-25 | 2018-05-08 | 常州雷宁电磁屏蔽设备有限公司 | Printer Special electromagnetic shields cabinet |
| CN108001052B (en) * | 2017-12-25 | 2024-07-02 | 常州雷宁电磁屏蔽设备有限公司 | Electromagnetic shielding cabinet special for printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131114 |