CN204497775U - Medical Devices charging control circuit - Google Patents
Medical Devices charging control circuit Download PDFInfo
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- CN204497775U CN204497775U CN201520112556.XU CN201520112556U CN204497775U CN 204497775 U CN204497775 U CN 204497775U CN 201520112556 U CN201520112556 U CN 201520112556U CN 204497775 U CN204497775 U CN 204497775U
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Abstract
The utility model discloses a kind of Medical Devices charging control circuit, comprising: testing circuit, for detecting the running status of Medical Devices; The running status of Medical Devices comprises operating state and holding state; Temperature collection circuit, for gathering the internal temperature of Medical Devices and exporting internal temperature values; Charging circuit, for charging to the power module in Medical Devices; And control circuit, for when Medical Devices are in holding state, control charging circuit and charge to power module in constant-current constant-voltage charging mode; Control circuit, also for when Medical Devices are in running order, regulates backward power module to charge according to the charging current of internal temperature values to charging circuit.Above-mentioned Medical Devices temperature-control circuit can regulate charging current according to the running status of Medical Devices and internal temperature values, thus realizes the control to Medical Devices internal temperature, effectively reduces device interior temperature rise.
Description
Technical field
The utility model relates to technical field of medical equipment, particularly relates to a kind of Medical Devices charging control circuit.
Background technology
Along with progress and the development of science and technology, Medical Devices are also constantly to miniaturization.Due to the smaller volume of Medical Devices, its inside often no longer arranges the heat dissipation equipments such as fan, thus the heat dispersion of equipment is reduced.Meanwhile, Medical Devices are also at past portability, and its inside can arrange rechargeable battery power supply in support.In battery charging process, temperature rise is very fast, the load of power module can be made when especially charging to battery in the Medical Devices course of work to increase, caloric value also can increase simultaneously, causes instrument internal temperature to raise, the useful life of the accuracy that affecting parameters is measured and instrument.
Utility model content
Based on this, be necessary for the problems referred to above, a kind of Medical Devices charging control circuit that can reduce device interior temperature rise is provided.
A kind of Medical Devices charging control circuit, comprising: testing circuit, for detecting the running status of Medical Devices; The running status of described Medical Devices comprises operating state and holding state; Temperature collection circuit, for gathering the internal temperature of described Medical Devices and exporting internal temperature values; Charging circuit, for charging to the power module in described Medical Devices; And control circuit, for when described Medical Devices are in holding state, control described charging circuit and charge to described power module in constant-current constant-voltage charging mode; Described control circuit, also for when described Medical Devices are in running order, carries out the backward described power module charging of adjustment according to described internal temperature values to the charging current of described charging circuit.
Wherein in an embodiment, control circuit control described charging circuit in constant-current constant-voltage charging mode to the charging of described power module time, be charge to described power module with maximum charging current at constant-current charging phase.
Wherein in an embodiment, described control circuit comprises judging unit and regulon; Described judging unit is for judging whether described internal temperature values is less than preset temperature value; Described regulon is used for when described internal temperature values is more than or equal to described preset temperature value, reduces the backward described power module charging of charging current of described charging circuit.
Wherein in an embodiment, described regulon, also for when described internal temperature values is less than described preset temperature value, increases the backward described power module charging of charging current of described charging circuit.
Wherein in an embodiment, described preset temperature value is 35 ~ 45 degrees Celsius.
Wherein in an embodiment, described preset temperature is 40 degrees Celsius.
Wherein in an embodiment, described control circuit is used for exporting corresponding control voltage to described charging circuit according to described internal temperature values.
Wherein in an embodiment, described control voltage is 0.051 ~ 0.8V.
Wherein in an embodiment, also comprise ac-dc converter circuit, after Alternating Current Power Supply is converted to direct current supply, exports to described charging circuit.
Wherein in an embodiment, described temperature collect module comprises temperature sensor.
Above-mentioned Medical Devices temperature-control circuit can regulate charging current according to the running status of Medical Devices and internal temperature values, thus the control realized Medical Devices internal temperature, effectively reduce device interior temperature rise, and then the accuracy that medical device parameters is measured can be guaranteed and extend useful life of Medical Devices.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the Medical Devices charging control circuit in an embodiment;
Fig. 2 is the circuit theory diagrams of control circuit in the Medical Devices charging control circuit in an embodiment and charging circuit.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
A kind of Medical Devices charging control circuit, for managing the charging process of the power module in Medical Devices and controlling.Fig. 1 is the theory diagram of the Medical Devices charging control circuit in an embodiment, comprises testing circuit 110, temperature collection circuit 120, control circuit 130 and charging circuit 140.Wherein, testing circuit 110, temperature collection circuit 120 and charging circuit 130 are connected with control circuit 130 respectively.
Testing circuit 110 is for detecting the running status of Medical Devices.In the present embodiment, the running status of Medical Devices comprises operating state and holding state.Testing result can be exported to control circuit 130 by testing circuit 110.Testing circuit 110 can by detecting the size of current in Medical Devices thus realizing the detection of the running status to Medical Devices.
Temperature collection circuit 120 is for gathering the internal temperature of Medical Devices and the internal temperature values collected being exported to control circuit 130.Temperature collection circuit 120 comprises the temperature sensor being arranged at Medical Devices inside.For the internal temperature values avoiding temperature collection circuit 120 to collect is subject to the impact of power module, temperature collection circuit 120 can keep certain distance with power module.
Control circuit 130 is for controlling according to the carrying out of Output rusults to charging circuit 140 of testing circuit 110 and temperature collection circuit 120.Particularly, when control circuit 130 is for detecting that Medical Devices are in holding state (non operating state) at testing circuit 110, controls charging circuit 140 and adopting constant-current constant-voltage charging mode to charge to power module.Wherein, the constant-current charging phase in constant-current constant-voltage charging process, control circuit 130 can control charging circuit 140 and charge to power module with maximum charging current, realizes charging rate faster.
Control circuit 130, also for when testing circuit 110 detects that Medical Devices are in running order, to power module charges after regulating according to the charging current of internal temperature values to charging circuit 140 of temperature collect module 120 output.In the present embodiment, control circuit 130 is single-chip microcomputer.Particularly, control circuit 130 comprises judging unit and regulon.Whether judging unit is less than preset temperature value for the internal temperature values judging temperature collect module 120 and collect.The size of preset temperature value can set according to factors such as temperature requirements when concrete Medical Devices performance, operation.For portable monitor, preset temperature value is set to 35 ~ 45 degrees Celsius.Preferably, preset temperature value is 40 degrees Celsius.Regulon is used for when the internal temperature values of Medical Devices is more than or equal to preset temperature value, charge to power module after reducing the charging current of charging circuit 140 output, thus by reducing the control of charging current realization to device interior temperature, effectively reduce the internal temperature rise of Medical Devices.In other examples, regulon is also for when the internal temperature values of Medical Devices is less than preset temperature value, charge to power module after increasing the charging current of charging circuit 140 output, thus keep charging rate faster while guarantee Medical Devices internal temperature.In other examples, regulon can also export the adjustment that corresponding control voltage realizes charging current to charging circuit 140 according to the internal temperature values gathered, control voltage can be 0.051 ~ 0.8V.Fig. 2 is the circuit theory diagrams of control circuit in the Medical Devices charging control circuit in an embodiment and charging circuit.
Above-mentioned Medical Devices temperature-control circuit can regulate charging current according to the running status of Medical Devices and internal temperature values, thus the control realized Medical Devices internal temperature, effectively reduce device interior temperature rise, ensure that Medical Devices internal temperatures is in certain scope, and then the accuracy that medical device parameters is measured can be guaranteed and extend useful life of Medical Devices.Above-mentioned Medical Devices temperature-control circuit is especially suitable in portable monitor.
In other examples, above-mentioned Medical Devices charging control circuit also comprises ac-dc converter circuit, after Alternating Current Power Supply is converted to direct current supply, export to charging circuit.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a Medical Devices charging control circuit, is characterized in that, comprising:
Testing circuit, for detecting the running status of Medical Devices; The running status of described Medical Devices comprises operating state and holding state;
Temperature collection circuit, for gathering the internal temperature of described Medical Devices and exporting internal temperature values;
Charging circuit, for charging to the power module in described Medical Devices; And
Control circuit, for when described Medical Devices are in holding state, control described charging circuit and charges to described power module in constant-current constant-voltage charging mode;
Described control circuit, also for when described Medical Devices are in running order, carries out the backward described power module charging of adjustment according to described internal temperature values to the charging current of described charging circuit.
2. Medical Devices charging control circuit according to claim 1, it is characterized in that, control circuit control described charging circuit in constant-current constant-voltage charging mode to the charging of described power module time, be charge to described power module with maximum charging current at constant-current charging phase.
3. Medical Devices charging control circuit according to claim 1, is characterized in that, described control circuit comprises judging unit and regulon;
Described judging unit is for judging whether described internal temperature values is less than preset temperature value;
Described regulon is used for when described internal temperature values is more than or equal to described preset temperature value, reduces the backward described power module charging of charging current of described charging circuit.
4. Medical Devices charging control circuit according to claim 3, is characterized in that, described regulon, also for when described internal temperature values is less than described preset temperature value, increases the backward described power module charging of charging current of described charging circuit.
5. Medical Devices charging control circuit according to claim 3, is characterized in that, described preset temperature value is 35 ~ 45 degrees Celsius.
6. Medical Devices charging control circuit according to claim 5, is characterized in that, described preset temperature is 40 degrees Celsius.
7. Medical Devices charging control circuit according to claim 1, is characterized in that, described control circuit is used for exporting corresponding control voltage to described charging circuit according to described internal temperature values.
8. Medical Devices charging control circuit according to claim 7, is characterized in that, described control voltage is 0.051 ~ 0.8V.
9. Medical Devices charging control circuit according to claim 1, is characterized in that, also comprise ac-dc converter circuit, after Alternating Current Power Supply is converted to direct current supply, export to described charging circuit.
10. Medical Devices charging control circuit according to claim 1, is characterized in that, described temperature collect module comprises temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112556.XU CN204497775U (en) | 2015-02-15 | 2015-02-15 | Medical Devices charging control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112556.XU CN204497775U (en) | 2015-02-15 | 2015-02-15 | Medical Devices charging control circuit |
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| CN204497775U true CN204497775U (en) | 2015-07-22 |
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| CN201520112556.XU Active CN204497775U (en) | 2015-02-15 | 2015-02-15 | Medical Devices charging control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198612A (en) * | 2017-12-20 | 2018-06-22 | 北京惠泽智信科技有限公司 | Large medical equipment state identification method and device |
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- 2015-02-15 CN CN201520112556.XU patent/CN204497775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198612A (en) * | 2017-12-20 | 2018-06-22 | 北京惠泽智信科技有限公司 | Large medical equipment state identification method and device |
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