CN203520578U - Circuit of call alarm for patient - Google Patents
Circuit of call alarm for patient Download PDFInfo
- Publication number
- CN203520578U CN203520578U CN201320562957.6U CN201320562957U CN203520578U CN 203520578 U CN203520578 U CN 203520578U CN 201320562957 U CN201320562957 U CN 201320562957U CN 203520578 U CN203520578 U CN 203520578U
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- transistor
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- capacitor
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Abstract
The utility model discloses a circuit of a call alarm for a patient. The circuit includes a delay trigger control circuit and an alarm circuit. The delay trigger control circuit is composed of a mercury switch S, a variable resistance RP, a resistor R1, a capacitor C, a Zener diode VS, a transistor V1 and a transistor V2. The alarm circuit is composed of a sound effect integrated circuit IC, a resistor R2, a transistor V3 and a loudspeaker BL. The circuit of the call alarm for the patient provided by the utility model has beneficial effects of being novel in design and simple in structure. The circuit of the call alarm for the patient can be placed beside a carried-on pill case of the patient. When the patient is attacked by a disease, the alarm can send an SOS signal to passers-by. The circuit of the call alarm for the patient is very practical and has a good market prospect.
Description
Technical field
The utility model relates to a kind of alarm circuit, particularly relates to a kind of patient's help alarm circuit.
Background technology
Some patients with coronary heart disease when stroke; often can fall down and senseless; at this moment need take medicine immediately and be sent to hospital and rescue to patient; yet; because patient now often can not take care of oneself, therefore, cannot talk clearly to other people the relevant situation of oneself at all; so that delayed timely rescue, jeopardized patient's life.Therefore it is in demand, being furnished with a help alarm concerning patient.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of patient's help alarm circuit is provided.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of patient's help alarm circuit of the present utility model, it comprises time delay trigger control circuit and warning circuit, described time delay trigger control circuit is comprised of mercury cut-off S, variohm RP, resistor R1, capacitor C, voltage stabilizing diode VS and transistor V1, transistor V2, and described warning circuit is comprised of sound effect integrated circuit IC, resistor R2, transistor V3 and loudspeaker BL; The base stage of described transistor V1 connects one end of capacitor C, and the emitter of transistor V1 connects the negative electrode of voltage stabilizing diode VS, one end of the collector contact resistance device R1 of transistor V1.
Described variohm RP selects solid variohm, it is the aluminium electrolutic capacitor of 16V that described capacitor C selects withstand voltage, described voltage stabilizing diode VS selects 2CW13 type silicon voltage regulator diode, described transistor V1 selects S9013 type NPN transistor, described transistor V2 selects 3AX81 type germanium PNP transistor, described transistor V3 selects S8050 type silicon NPN transistor, and described sound effect integrated circuit IC selects KD9561 type sound effect integrated circuit.
The utlity model has following beneficial effect:
Patient's help alarm of the present utility model, modern design, simple in structure, together with the medicine box that can carry with patient, when patient disease shows effect, alarm can send an SOS from trend passerby, and practicality very has good market outlook.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
With reference to figure 1, a kind of patient's help alarm circuit, it comprises time delay trigger control circuit and warning circuit, described time delay trigger control circuit is comprised of mercury cut-off S, variohm RP, resistor R1, capacitor C, voltage stabilizing diode VS and transistor V1, transistor V2, and described warning circuit is comprised of sound effect integrated circuit IC, resistor R2, transistor V3 and loudspeaker BL; The base stage of described transistor V1 connects one end of capacitor C, and the emitter of transistor V1 connects the negative electrode of voltage stabilizing diode VS, one end of the collector contact resistance device R1 of transistor V1.
Described variohm RP selects solid variohm, it is the aluminium electrolutic capacitor of 16V that described capacitor C selects withstand voltage, described voltage stabilizing diode VS selects 2CW13 type silicon voltage regulator diode, described transistor V1 selects S9013 type NPN transistor, described transistor V2 selects 3AX81 type germanium PNP transistor, described transistor V3 selects S8050 type silicon NPN transistor, and described sound effect integrated circuit IC selects KD9561 type sound effect integrated circuit.
The principle of work of patient's help alarm circuit of the present utility model: at ordinary times, alarm is vertically contained in patient's coat pocket, and mercury cut-off S is in off-state, transistor V1 and not conducting of transistor V2, sound effect integrated circuit IC does not work, and loudspeaker BL is sounding not.
When patient falls down to the ground because of seizure of disease, mercury cut-off S connects, capacitor C charges through variohm RP, when capacitor C both end voltage is charged to certain value (about 6.6V), transistor V1 and transistor V2 conducting, make sound effect integrated circuit IC energising work, the audio electric signal of its output, after transistor V3 amplifies, drives loudspeaker BL to send chimes of doom.Regulate the resistance of variohm RP, can change the duration of charging of capacitor C, thereby change time delay.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (2)
1. patient's help alarm circuit, it comprises time delay trigger control circuit and warning circuit, it is characterized in that: described time delay trigger control circuit is comprised of mercury cut-off S, variohm RP, resistor R1, capacitor C, voltage stabilizing diode VS and transistor V1, transistor V2, described warning circuit is comprised of sound effect integrated circuit IC, resistor R2, transistor V3 and loudspeaker BL; The base stage of described transistor V1 connects one end of capacitor C, and the emitter of transistor V1 connects the negative electrode of voltage stabilizing diode VS, one end of the collector contact resistance device R1 of transistor V1.
2. a kind of patient's help alarm circuit as claimed in claim 1, it is characterized in that: described variohm RP selects solid variohm, it is the aluminium electrolutic capacitor of 16V that described capacitor C selects withstand voltage, described voltage stabilizing diode VS selects 2CW13 type silicon voltage regulator diode, described transistor V1 selects S9013 type NPN transistor, described transistor V2 selects 3AX81 type germanium PNP transistor, described transistor V3 selects S8050 type silicon NPN transistor, and described sound effect integrated circuit IC selects KD9561 type sound effect integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562957.6U CN203520578U (en) | 2013-09-04 | 2013-09-04 | Circuit of call alarm for patient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562957.6U CN203520578U (en) | 2013-09-04 | 2013-09-04 | Circuit of call alarm for patient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203520578U true CN203520578U (en) | 2014-04-02 |
Family
ID=50379472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320562957.6U Expired - Fee Related CN203520578U (en) | 2013-09-04 | 2013-09-04 | Circuit of call alarm for patient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203520578U (en) |
-
2013
- 2013-09-04 CN CN201320562957.6U patent/CN203520578U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140904 |
|
| EXPY | Termination of patent right or utility model |