CN202236022U - Device for controlling medical sickbed - Google Patents
Device for controlling medical sickbed Download PDFInfo
- Publication number
- CN202236022U CN202236022U CN2011202833257U CN201120283325U CN202236022U CN 202236022 U CN202236022 U CN 202236022U CN 2011202833257 U CN2011202833257 U CN 2011202833257U CN 201120283325 U CN201120283325 U CN 201120283325U CN 202236022 U CN202236022 U CN 202236022U
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- power supply
- voltage
- sick bed
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Abstract
The utility model relates to a device for controlling a medical sickbed. The device comprises a control unit and a driver; the control unit outputs a control signal to the driver to control the state of the medical sickbed; the device further comprises a switching power supply used for converting AC city electricity into DC voltage and supplying for the control unit to serve as a power supply voltage and a battery unit used for supplying DC voltage for the control unit in case of AC city electricity loss; and the DC output ends of the switching power supply and the battery unit are connected to the power supply end of the control unit in parallel. The device for controlling the medical sickbed has the following benefits of small weight, low power consumption and convenience in use.
Description
Technical field
This utility model relates to medical apparatus and instruments, more particularly, relates to a kind of control device that is used for medical sick bed control.
Background technology
Need lie in the situation on the sick bed for a long time owing to possibly occur handicapped during patient's hospitalization, common medical sick bed all has to be regulated certain part of bed, and then makes patient feel comparatively comfortable needs.It much is the attitude of regulating bed through the control linear actuator that medical sick bed on the present market has; Thereby regulate patient's posture; Make patient obtain a pleasant rest mode; But the control circuit major part that is used to control driver in the market all is to use low-frequency transformer, and heaviness and stand-by power consumption be big (generally all more than several watts) very, do not meet environmental protection requirement; Simultaneously; The adjusting of current medical sick bed realizes through electric main mostly; In some cases; For example mains failure or medical sick bed move and make that in the time of can not connecting civil power, above-mentioned medical sick bed adjusting device just can not be used, and this makes the use of medical sick bed receive the restriction of external condition.
The utility model content
The technical problem that this utility model will solve is, to big, the awkward defective of above-mentioned heaviness, power consumption of prior art, a kind of control device that is used for medical sick bed control comparatively light and handy, low in energy consumption, easy to use is provided.
This utility model solves the technical scheme that its technical problem adopted: construct a kind of control device that is used for medical sick bed control; Comprise control unit and driver; Said control unit outputs a control signal to the state that said driver is controlled said medical sick bed; Also comprise electric main is converted into DC voltage and offers said control unit as the Switching Power Supply of supply voltage be the battery unit that said control unit provides DC voltage when the said electric main disappearance, the parallel power end that is connected said control unit of the dc output end of said Switching Power Supply and said battery unit.
At the described control device that is used for the control of medical sick bed of this utility model, anastomosing first switch when said battery unit also is included in said electric main disappearance, said first switch series is connected on the voltage anode of said battery unit.
At the described control device that is used for the control of medical sick bed of this utility model, said Switching Power Supply also comprises and is used to prevent that surge current or voltage from getting into the anti-surge unit of said alternating current power supply.
At the described control device that is used for medical sick bed control of this utility model, said anti-surge unit is the high frequency choke coil of two serial connections.
At the described control device that is used for medical sick bed control of this utility model, said alternating current power supply also comprises the voltage sample unit that is used to obtain overvoltage/overcurrent protection reference voltage.
At the described control device that is used for medical sick bed control of this utility model, said driver comprises drive circuit, and said drive circuit drives different actuators through the disconnection of a plurality of relays respectively with adhesive; Be connected with the dc output end of said Switching Power Supply or battery after the said relay coil one end parallel connection, the other end of said relay coil connects a plurality of control signals respectively; Said relay coil and connect an end and said dc output end between also be connected with soft starting circuit.
At the described control device that is used for medical sick bed control of this utility model; Said relay coil and connect an end and said dc output end between also be connected with automatic shutdown circuitry, said dc output end, soft starting circuit, automatic shutdown circuitry and said relay coil also connect between the end serial connection successively.
Implement the control device that is used for medical sick bed control of this utility model; Have following beneficial effect: since its be used and connect electric main is converted into galvanic Switching Power Supply and battery unit; And battery unit can be taken over power supply automatically and make control device and rot operate as normal thereof when electric main lacks, so above-mentioned control device is comparatively light and handy, low in energy consumption, easy to use.
Description of drawings
Fig. 1 is the structural representation that this utility model is used for the control device embodiment of medical sick bed control;
Fig. 2 is the electrical schematic diagram of Switching Power Supply part among the said embodiment;
Fig. 3 is a driver drive part electrical schematic diagram among the said embodiment.
The specific embodiment
To combine accompanying drawing that this utility model embodiment is described further below.
As shown in Figure 1, be used for the control device embodiment that medical sick bed is controlled at this utility model, this control device that is used for medical sick bed control comprises Switching Power Supply 1, battery unit 2, control unit 3 and driver 4; Wherein, above-mentioned control unit 3 outputs a control signal to the state of the medical sick bed of driver 4 control, i.e. control should a medical treatment sick bed part (for example; The head of a bed) state; Comprise and rising or reduction,, make patient to have a rest with comparatively comfortable mode so that patient's attitude is adjusted; Switching Power Supply 1 converts electric main into DC voltage and offers control unit 3 as supply voltage; Simultaneously; Battery unit 2 is that control unit 3 provides DC voltage as its supply voltage when electric main lacks; Therefore, the parallel power end that is connected control unit 3 of the dc output end of Switching Power Supply 1 and battery unit 2.In the present embodiment, anastomosing first switch (not shown) when battery unit 2 also is included in the electric main disappearance, first switch series is connected on the voltage anode of battery unit 2.Like this, when electric main existed, the dc output end of the dc output end of battery unit 2 and Switching Power Supply 1 broke off, and battery unit 2 can not be control unit 3 power supplies, but the DC voltage of directly being changed by electric main is control unit 3 power supplies; That is to say that at electric main just often, the electric weight of battery unit 2 basically can loss; And when electric main lacks (for example power failure or this sick bed are in the position that does not have electric main); Above-mentioned first switch conduction; At this moment; The dc voltage output end of Switching Power Supply 1 does not have DC voltage output, and the dc output end of battery unit 2 is connected on the power end of control unit 3, is above-mentioned control unit 3 power supplies.Certainly, this moment, the dc output end of battery unit 2 also was above-mentioned driver 4 power supplies, made and should can normally adjust by the medical treatment sick bed.
In the present embodiment, Fig. 2 is the electrical schematic diagram of Switching Power Supply part in the present embodiment.As shown in Figure 2, Switching Power Supply 1 also comprises and is used to prevent that surge current or voltage from getting into the anti-surge unit of said alternating current power supply; Anti-surge unit is the high frequency choke coil of two serial connections.See also two high frequency choke coils that are serially connected among Fig. 2 between mains electricity input end L/N and the bridge rectifier.Its effect is to stop the interfering signal that is superimposed upon on the line voltage of upper frequency to get into Switching Power Supply 1, prevents that just surge voltage or electric current from getting into Switching Power Supply 1.
In addition, as shown in Figure 2, in the present embodiment, alternating current power supply 1 also comprises the voltage sample unit (seeing also the resistance R 17 of Fig. 2) that is used for obtaining overvoltage/overcurrent protection reference voltage.This voltage sample unit, promptly resistance R 17 can make the voltage of its collection as the benchmark of Switching Power Supply overvoltage/overcurrent protection.
In the present embodiment, the stand-by power consumption of above-mentioned Switching Power Supply meets the zero standby of international standard, i.e. stand-by power consumption < 0.1W.
In the present embodiment, Fig. 3 is the electrical schematic diagram of driver drive part, and driver comprises drive circuit (being the electric furnace shown in Fig. 3), and in the drive circuit of present embodiment, the disconnection through a plurality of relays drives different actuators respectively with adhesive; Be connected (in fact, the dc output end of Switching Power Supply 1 and battery unit 2 links together) after the relay coil one end parallel connection with the dc output end of Switching Power Supply 1 or battery unit 2, the other end of relay coil connects a plurality of control signals respectively; Relay coil and connect an end and above-mentioned dc output end between also be connected with soft starting circuit (being the circuit in the bigger frame of broken lines that marks among Fig. 3); Simultaneously; Relay coil and connect an end and said dc output end between also be connected with automatic shutdown circuitry (being the circuit in the frame of broken lines less among Fig. 3), said dc output end, soft starting circuit, automatic shutdown circuitry and said relay coil also connect between the end serial connection successively.In a word; In the present embodiment; DC voltage on the dc power supply terminal is successively through soft starting circuit, automatic shutdown circuitry and relay coil and connect and be transferred to above-mentioned relay coil one end between the end, and the other end of the coil of each relay is connected respectively on the corresponding driving signal output part.When above-mentioned driving signal was high level, the voltage at relay coil two ends was equal basically, voltage difference can not occur, also electric current can not occur on the relay coil, so this relay can adhesive yet, is in off-state; Driver is not worked.When above-mentioned control signal was low level, voltage difference appearred in the relay coil two ends, occurred electric current on the relay coil, the relay contact adhesive, and driver begins to such an extent that the electrician does.In the present embodiment, above-mentioned soft starting circuit makes start or DC voltage can not be transferred on the relay coil immediately when beginning to export, but postpones one section setting-up time, makes that the dc voltage stability on the dc voltage output end is exported afterwards.Promptly the switching frequency through PWM (pulse-width modulation circuit) control MOSFET is about 400 milliseconds, and is often open-minded then.Because of motor is very big at the immediate current of boot-strap of often opening, have very big pause and transition in rhythm or melody sense, the effect of soft start is exactly to eliminate this pause and transition in rhythm or melody sense, makes slowly starting stably of motor.Be sent to above-mentioned automatic shutdown circuitry.Above-mentioned automatic shutdown circuitry is then closed holding circuit more greatly at output current, that is to say, usually the starting current of motor is all very big, is quite a few times of normality, and general current foldback circuit often just works in electric motor starting moment.Cause the mistake protection.Above-mentioned automatic shutdown circuitry can be ignored the actuating motor big electric current of moment, only behind motor stabilizing, just can shield.
The above embodiment has only expressed several kinds of embodiments of this utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from this utility model design, can also make some distortion and improvement, these all belong to the protection domain of this utility model.Therefore, the protection domain of this utility model patent should be as the criterion with accompanying claims.
Claims (7)
1. one kind is used for the control device that medical sick bed is controlled; Comprise control unit and driver; Said control unit outputs a control signal to the state that said driver is controlled said medical sick bed; It is characterized in that; Also comprise electric main is converted into DC voltage and offers said control unit as the Switching Power Supply of supply voltage be the battery unit that said control unit provides DC voltage when the said electric main disappearance, the parallel power end that is connected said control unit of the dc output end of said Switching Power Supply and said battery unit.
2. the control device that is used for the control of medical sick bed according to claim 1 is characterized in that, anastomosing first switch when said battery unit also is included in said electric main disappearance, and said first switch series is connected on the voltage anode of said battery unit.
3. the control device that is used for the control of medical sick bed according to claim 2 is characterized in that, said alternating current power supply also comprises and is used to prevent that surge current or voltage from getting into the anti-surge unit of said alternating current power supply.
4. the control device that is used for medical sick bed control according to claim 3 is characterized in that said anti-surge unit is the high frequency choke coil of two serial connections.
5. the control device that is used for medical sick bed control according to claim 4 is characterized in that said alternating current power supply also comprises the voltage sample unit that is used to obtain overvoltage/overcurrent protection reference voltage.
6. the control device that is used for medical sick bed control according to claim 5 is characterized in that said driver comprises drive circuit, and said drive circuit drives different actuators through the disconnection of a plurality of relays respectively with adhesive; Be connected with the dc output end of said Switching Power Supply or battery after the said relay coil one end parallel connection, the other end of said relay coil connects a plurality of control signals respectively; Said relay coil and connect an end and said dc output end between also be connected with soft starting circuit.
7. the control device that is used for medical sick bed control according to claim 6; It is characterized in that; Said relay coil and connect an end and said dc output end between also be connected with automatic shutdown circuitry, said dc output end, soft starting circuit, automatic shutdown circuitry and said relay coil also connect between the end serial connection successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202833257U CN202236022U (en) | 2011-08-05 | 2011-08-05 | Device for controlling medical sickbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202833257U CN202236022U (en) | 2011-08-05 | 2011-08-05 | Device for controlling medical sickbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202236022U true CN202236022U (en) | 2012-05-30 |
Family
ID=46097337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202833257U Expired - Lifetime CN202236022U (en) | 2011-08-05 | 2011-08-05 | Device for controlling medical sickbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202236022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605338A (en) * | 2013-11-13 | 2014-02-26 | 南通医疗器械有限公司 | A bed body fatigue test controller used for medical instruments |
| CN113274216A (en) * | 2021-04-29 | 2021-08-20 | 上海惠上电子技术有限公司 | Multifunctional bed control device and circuit |
-
2011
- 2011-08-05 CN CN2011202833257U patent/CN202236022U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605338A (en) * | 2013-11-13 | 2014-02-26 | 南通医疗器械有限公司 | A bed body fatigue test controller used for medical instruments |
| CN113274216A (en) * | 2021-04-29 | 2021-08-20 | 上海惠上电子技术有限公司 | Multifunctional bed control device and circuit |
| CN113274216B (en) * | 2021-04-29 | 2022-03-25 | 上海惠上电子技术有限公司 | Multifunctional bed control device and circuit |
| US12042450B2 (en) | 2021-04-29 | 2024-07-23 | Shanghai Winsunny Electronics Tech. Co. Ltd. | Multifunctional bed, a multi-drive switch protection circuit and its control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |