CN1800866A - Cell detection system and method thereof - Google Patents
Cell detection system and method thereof Download PDFInfo
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- CN1800866A CN1800866A CN 200510000182 CN200510000182A CN1800866A CN 1800866 A CN1800866 A CN 1800866A CN 200510000182 CN200510000182 CN 200510000182 CN 200510000182 A CN200510000182 A CN 200510000182A CN 1800866 A CN1800866 A CN 1800866A
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Abstract
The disclosed cell detection system in a electronic device to detect whether the device connects to a cell with a thermistor, which comprises: a power supply device to generate a test current, a detecting resistance connected between the supply device and cell thermistor, and a measurement circuit connected a node between the detecting resistance and thermistor to detect a first voltage value of the node and then generate a detecting signal to show the result.
Description
Technical field
The present invention is about a kind of detecting system, is meant especially in order to detect a battery in the electronic installation and this electronic installation whether interconnected detecting system and method thereof.
Background technology
General battery of mobile phone can be divided into three metal pins and two kinds of patterns of four metal pins, and wherein three metal pins are used for reflecting the builtin voltage of battery, the situation of temperature and electric current respectively.The 4th metal pin then is the attribute that is used for judging battery; For example, can be used to judge that this battery is a Ni-MH battery or a lithium battery.And at present because the relation of practicality, Ni-MH battery has been eliminated gradually, and therefore the battery of general four metal pins is not used gradually, on the existing market based on the battery of three metal pins.
The inside of general battery of mobile phone all has a thermistor, can utilize thermistor to reflect the temperature that battery is present, though but battery of mobile phone can reflect the situation of builtin voltage, temperature and the electric current of battery, there is no the pin position that provides extra and allow mobile phone judge that whether battery exists.This can cause the problem on the certain operations, for example, when cell-phone charging, battery do not exist because of external force influence or with mobile phone between contact bad, mobile phone also can't learn that battery has not existed or loose contact, therefore can continue there not being the mobile phone that one loose contact situation takes place for battery or battery and mobile phone to charge, this action might cause the mobile phone infringement because the charging of mobile phone is unusual.
Therefore fundamental purpose of the present invention can overcome the problems referred to above in that a kind of detecting system is provided.
Summary of the invention
The object of the present invention is to provide a kind of detecting system, can detect electronic installation and battery and whether interconnect.
The invention provides a kind of battery detecting system, be applied in the electronic installation, whether the detecting electronic installation is connected in a battery, and battery comprises a thermistor, and detecting system comprises a power supply device, a detecting resistance and a measurement circuit.Power supply device is in order to produce a measuring current.Detecting resistance is connected between the thermistor of power supply device and battery.Measurement circuit is connected in the node between detecting resistance and the thermistor, in order to one first magnitude of voltage of detecting node, and produces a detection signal according to first magnitude of voltage, whether is connected in electronic installation with the expression battery.
Detecting system of the present invention utilizes the inside battery thermistor to change with battery temperature, and then influence the characteristic of the change in voltage at thermistor two ends, the utilization slowdown monitoring circuit measures the voltage of this node, and compare with prior one of predetermined reference voltage, can detect electronic installation and battery thus and whether interconnect.
The present invention provides a battery and this electronic installation in a kind of detecting one electronic installation interconnected method whether in addition, and this battery comprises a thermistor, and this method for detecting comprises the following step: (a) connect one and detect resistance to this thermistor; (b) produce a measuring current, this measuring current flow through this detecting resistance and this thermistor; (c) measure one first magnitude of voltage of the node between this detecting resistance and this thermistor; And (d) produce a detection signal, and judge by this detection signal whether this electronic installation and this battery interconnect according to this first magnitude of voltage.
Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.
Description of drawings
Fig. 1 is the system block diagrams of detecting system of the present invention.
Fig. 2 is the synoptic diagram that concerns between thermistor and battery temperature.
Fig. 3 is the synoptic diagram that concerns of voltage and temperature.
Fig. 4 is the synoptic diagram of the embodiment of detecting system of the present invention.
Fig. 5 is the synoptic diagram of another embodiment of detecting system of the present invention.
Fig. 6 is the synoptic diagram of another embodiment of detecting system of the present invention.
Fig. 7 is the flow chart of steps of method for detecting of the present invention.
Symbol description
10,60: detecting system 11: battery
12: power supply device 14,64: detecting resistance
15,65: node 16: thermistor
18: measurement circuit 50: control device
52: display device 67: reference voltage
68: comparer 70: detection signal
76: charging device 78: charging end
80: resistance
Embodiment
See also Fig. 1, Fig. 1 is the system block diagrams of detecting system 10 of the present invention.Whether the present invention is a kind of detecting system 10, be connected to each other with electronic installation in order to a battery 11 of detecting in the electronic installation, in an embodiment, electronic installation is an action communication device, and detecting system 10 is contained in this action communication device, for example, and a mobile phone.Detecting system 10 comprises a power supply device 12, detecting resistance 14, a thermistor 16 and a measurement circuit 18.Power supply device 12 is in order to produce a measuring current.Detecting resistance 14 is connected in power supply device 12.Thermistor 16 is positioned at battery 11 inside, and thermistor 16 is connected in detecting resistance 14.Measurement circuit 18 is connected in a node 15 of 16 of detecting resistance 14 and thermistors, and one first magnitude of voltage that measurement circuit 18 is detected these nodes 15 also produces a detection signal, and judges by detection signal whether electronic installation and battery 11 interconnect.
In an embodiment, measurement circuit 18 comprises a comparer, and comparer compares according to a reference voltage and first magnitude of voltage, to produce detection signal.And in another embodiment, measurement circuit 18 also can adopt the mode of software to carry out, and reaches the action that compares according to the reference voltage and first magnitude of voltage.In an embodiment, when first magnitude of voltage during more than or equal to a predeterminated voltage value, detection signal can have the first detecting value, is not connected in electronic installation with the expression battery.And in another embodiment, the variation in first magnitude of voltage is between a given period is during more than or equal to a predeterminated voltage changing value, and detection signal can have one first detecting value, is not connected in electronic installation with the expression battery.
The above-mentioned two kinds of embodiments of measurement circuit of the present invention and indefinite are as long as the comparison reference voltage that can be correct and the method and the device of first magnitude of voltage all can become one of measurement circuit of the present invention embodiment.And another kind of embodiment, do not limit the magnitude of voltage that measures single time point, measurement circuit also can judge whether the annexation of electronic installation and battery is normal by the voltage change that measures length sometime whether more than or equal to a predeterminated voltage changing value.
See also Fig. 2 and Fig. 3, Fig. 2 is the synoptic diagram that concerns between thermistor and battery temperature.Fig. 3 is the synoptic diagram that concerns of voltage and temperature.As shown in Figures 2 and 3, the present invention utilizes the thermistor of inside battery to change size with battery temperature, and then influence the principle of the change in voltage at thermistor two ends, carry out the judgement of state between the two of electronic installation and battery, for example, when the battery temperature step-down, the value of thermistor can become greatly, makes the magnitude of voltage at thermistor two ends become big.When battery does not exist or during with the serious loose contact of electronic installation, battery temperature will step-down, and then makes magnitude of voltage become big.Therefore we can be by the measuring voltage value, and utilize magnitude of voltage or its to change and learn thermosensitive resistance or its variation, and then learn battery temperature value or its variation, to detect and to judge whether battery exists, promptly be whether electronic installation and battery interconnect, connection between the two produces the phenomenon of a serious loose contact also or though though electronic installation interconnects with battery.
In more detail, when battery is not connected in electronic installation, or between battery and the electronic installation during serious loose contact, battery temperature can step-down, and then causes thermosensitive resistance to become big, and therefore, it is big that the magnitude of voltage that measurement circuit 18 is measured also can become.See also Fig. 4, Fig. 4 is the synoptic diagram of the embodiment of detecting system of the present invention.Detecting system 10 comprises a control device 50 in addition, be connected in measurement circuit 18, when control device 50 then closes closing electronic device when detection signal is one first detecting value, an action thus, can prevent that electronic installation from not having under the interconnective situation with battery, continue charge electronic devices is caused the damage of electronic installation.
See also Fig. 5, Fig. 5 is the synoptic diagram of another embodiment of detecting system of the present invention.In present embodiment, detecting system 10 comprises a display device 52 that is connected in measurement circuit 18 in addition, when the detection signal of being exported when measurement circuit 18 is the first detecting value, then can show an error message on the display device 52.
In another embodiment, electronic installation is a mobile phone, mobile phone provides a power supply device to produce a measuring current, be connected in series a detecting resistance with the thermistor of inside battery, voltage by the continuous measurement node of measurement circuit, can learn the variation of the two ends pressure drop of thermistor, and utilize as shown in Figure 3 voltage and the graph of a relation of temperature, obtain battery temperature, when the temperature that judges is crossed when low, mobile phone promptly cuts out mobile phone automatically or show an error message on the display screen of mobile phone, avoids mobile phone to recruit and is subjected to unnecessary harm.
See also Fig. 6, Fig. 6 is the synoptic diagram of detecting system 60 another embodiment of the present invention.Detecting system of the present invention not only can be applied in mobile phone, also can be applied in general battery charger, and as shown in Figure 6, the detecting system 60 of present embodiment is applied in the battery charger, whether is connected in battery 11 in order to the detecting charger.Battery charger comprises a charging device 76, be connected in a charging end 78 of battery 11, so that battery 11 is charged, wherein charging device 76 is connected a resistance 80 in addition with 78 of charging ends, flow to the electric current of charging end 78 in order to constant charge device 76, and detecting resistance 64 is connected between the thermistor 16 of charging device 76 and battery 11, and the measurement circuit of present embodiment is a comparer 68.In present embodiment, charging device 76 produces a measuring current, measuring current is flowed through and is detected resistance 64 and thermistor 16, first magnitude of voltage and a reference voltage 67 that comparer 68 will be detected the node 65 between resistance 64 and the thermistor 16 compare, and produce detection signal 70 according to comparative result, judge by detection signal 70 whether battery charger and battery 11 interconnect, when not interconnecting between battery charger and the battery 11 or during serious loose contact, battery charger can cut out automatically, to stop battery 11 chargings.
See also Fig. 7, Fig. 7 is the flow chart of steps of method for detecting of the present invention.Whether method for detecting of the present invention is connected to each other in order to a battery and this electronic installation of detecting in the electronic installation, and wherein battery comprises a thermistor, and in an embodiment, electronic installation can be an action communication device and is somebody's turn to do.Method for detecting comprises the following step:
S80: connect a detecting resistance to thermistor;
S82: produce a measuring current, measuring current is flowed through and is detected resistance and thermistor;
S84: one first magnitude of voltage that measures the node between detecting resistance and thermistor; And
S86: producing a detection signal, and judge by detection signal whether electronic installation and battery interconnect according to first magnitude of voltage.
Wherein the detection signal of step S86 utilizes a reference voltage and first magnitude of voltage to compare and produce.
In an embodiment, when first magnitude of voltage during more than or equal to a predeterminated voltage value, detection signal can have the first detecting value, is not connected in electronic installation with the expression battery.And in another embodiment, the variation in first magnitude of voltage is between a given period is during more than or equal to a predeterminated voltage changing value, and detection signal can have one first detecting value, is not connected in electronic installation with the expression battery.
In present embodiment, method for detecting comprises in addition:
S88: judge whether detection signal is one first detecting value; And
S90:, close closing electronic device if detection signal is one first detecting value.
And in another embodiment, when step S88 judges that detection signal is one first detecting value, then carry out step S94;
S94: when detection signal is one first detecting value, show an error message.
Detecting system of the present invention, can change size with battery temperature by the inside battery thermistor, and then influence the characteristic of the change in voltage at thermistor two ends, in case the generation electronic installation separates with battery or the situation of serious loose contact, the relative step-down of battery temperature meeting, then can learn, judge electronic installation and battery thus and whether interconnect this moment by the voltage that measurement circuit measures gained.If electronic installation separates with battery or serious loose contact, can further make suitable safeguard measure.
By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category of claim of being arranged in of various changes and tool equality institute of the present invention desire application.
Claims (16)
1, a kind of battery detecting system is applied in the electronic installation, detects this electronic installation and whether is connected in a battery, and this battery comprises a thermistor, and this detecting system comprises:
One power supply device is in order to produce a measuring current;
One detecting resistance is connected between the thermistor of this power supply device and this battery; And
One measurement circuit is connected in the node between this detecting resistance and this thermistor, in order to detecting one first magnitude of voltage of this node, and produces a detection signal according to this first magnitude of voltage, whether is connected in this electronic installation to represent this battery.
2, battery detecting system as claimed in claim 1 is characterized in that, this measurement circuit comprises a comparer, is used for this first magnitude of voltage and a reference voltage are compared, and produces this detection signal according to this comparative result.
3, battery detecting system as claimed in claim 1 is characterized in that, this first magnitude of voltage is during more than or equal to a predeterminated voltage value, and this detection signal can have the first detecting value, is not connected in this electronic installation to represent this battery.
4, battery detecting system as claimed in claim 1, it is characterized in that, the variation of this first magnitude of voltage between a given period is during more than or equal to a predeterminated voltage changing value, and this detection signal can have one first detecting value, is not connected in this electronic installation to represent this battery.
5, battery detecting system as claimed in claim 1 is characterized in that, this detecting system comprises a control device in addition, is connected in this measurement circuit, and this control device cuts out this electronic installation when this detection signal is one first detecting value.
6, battery detecting system as claimed in claim 1 is characterized in that, this detecting system comprises a display device in addition, is connected in this measurement circuit, when this display device is one first detecting value in this detection signal, shows an error message.
7, battery detecting system as claimed in claim 1 is characterized in that, described electronic installation is an action communication device.
8, battery detecting system as claimed in claim 1 is characterized in that, described electronic installation is a battery charger, and other comprises a charging device, is connected in a charging end of this battery, so that this battery is charged.
9, the battery in a kind of detecting one electronic installation and this electronic installation interconnected method whether, this battery comprises a thermistor, and this method for detecting comprises the following step:
(a) connect a detecting resistance to this thermistor;
(b) produce a measuring current, this measuring current flow through this detecting resistance and this thermistor;
(c) measure one first magnitude of voltage of the node between this detecting resistance and this thermistor; And
(d) produce a detection signal according to this first magnitude of voltage, and judge by this detection signal whether this electronic installation and this battery interconnect.
10, method for detecting as claimed in claim 9 is characterized in that, this detection signal of this step (d) utilizes a reference voltage and this first magnitude of voltage to compare and produce.
11, method for detecting as claimed in claim 9 is characterized in that, this first magnitude of voltage of this step (d) is during more than or equal to a predeterminated voltage value, and this detection signal can have the first detecting value, is not connected in this electronic installation to represent this battery.
12, method for detecting as claimed in claim 9, it is characterized in that, the variation of this first magnitude of voltage of step (d) between a given period is during more than or equal to a predeterminated voltage changing value, and this detection signal can have one first detecting value, is not connected in this electronic installation to represent this battery.
13, method for detecting as claimed in claim 9 is characterized in that, this method for detecting comprises in addition:
(e) judge whether this detection signal is one first detecting value; And
(f) if this detection signal is one first detecting value, close this electronic installation.
14, method for detecting as claimed in claim 9 is characterized in that, this method for detecting comprises in addition:
(e) judge whether this detection signal is one first detecting value; And
(f) when this detection signal is one first detecting value, show an error message.
15, method for detecting as claimed in claim 9 is characterized in that, this electronic installation is an action communication device.
16, method for detecting as claimed in claim 9 is characterized in that, this electronic installation is a battery charger, and this battery charger comprises a charging device in addition, and this charging device is connected in a charging end of this battery, so that this battery is charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100001823A CN100547419C (en) | 2005-01-06 | 2005-01-06 | Battery detecting system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100001823A CN100547419C (en) | 2005-01-06 | 2005-01-06 | Battery detecting system and method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN1800866A true CN1800866A (en) | 2006-07-12 |
| CN100547419C CN100547419C (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100001823A Expired - Fee Related CN100547419C (en) | 2005-01-06 | 2005-01-06 | Battery detecting system and method thereof |
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| CN (1) | CN100547419C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403625A (en) * | 2010-09-08 | 2012-04-04 | 鸿富锦精密工业（深圳）有限公司 | Connector combination |
| CN103033693A (en) * | 2011-09-29 | 2013-04-10 | 比亚迪股份有限公司 | Mobile terminal charging testing system and method |
| CN103095929A (en) * | 2013-02-16 | 2013-05-08 | 惠州Tcl移动通信有限公司 | Method and system capable of preventing terminal from restarting repeatedly and mobile terminal using the same |
| CN106610478A (en) * | 2017-01-10 | 2017-05-03 | 中国电力科学研究院 | Energy storage battery characteristic estimation method and system based on mass data |
| CN112649671A (en) * | 2020-12-15 | 2021-04-13 | Oppo广东移动通信有限公司 | Detection circuit and detection method of electronic equipment and electronic equipment |
| CN113093030A (en) * | 2021-03-12 | 2021-07-09 | 深圳宝新创科技股份有限公司 | Automatic test method for battery charging and discharging and electronic equipment |
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| JPH04368780A (en) * | 1991-06-14 | 1992-12-21 | Furukawa Battery Co Ltd:The | Device for detecting presence or absence of connection of storage battery to battery charger |
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| US5717314A (en) * | 1996-09-12 | 1998-02-10 | Ericsson Inc. | Apparatus and method of monitoring battery temperature during charging |
| US5854551A (en) * | 1997-02-26 | 1998-12-29 | Ericsson Inc. | Battery charger with low standby current |
| US5932989A (en) * | 1998-05-04 | 1999-08-03 | Motorola, Inc. | Method for an electronic device to detect the presence of a battery charger |
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| FR2820212A1 (en) * | 2001-01-30 | 2002-08-02 | St Microelectronics Sa | CIRCUIT FOR DETECTING POOR POWER CONNECTION |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403625A (en) * | 2010-09-08 | 2012-04-04 | 鸿富锦精密工业（深圳）有限公司 | Connector combination |
| CN103033693A (en) * | 2011-09-29 | 2013-04-10 | 比亚迪股份有限公司 | Mobile terminal charging testing system and method |
| CN103033693B (en) * | 2011-09-29 | 2015-08-26 | 比亚迪股份有限公司 | A kind of mobile terminal charging measurement system and method |
| CN103095929A (en) * | 2013-02-16 | 2013-05-08 | 惠州Tcl移动通信有限公司 | Method and system capable of preventing terminal from restarting repeatedly and mobile terminal using the same |
| CN103095929B (en) * | 2013-02-16 | 2015-06-17 | 惠州Tcl移动通信有限公司 | Method and system capable of preventing terminal from restarting repeatedly and mobile terminal using the same |
| CN106610478A (en) * | 2017-01-10 | 2017-05-03 | 中国电力科学研究院 | Energy storage battery characteristic estimation method and system based on mass data |
| CN112649671A (en) * | 2020-12-15 | 2021-04-13 | Oppo广东移动通信有限公司 | Detection circuit and detection method of electronic equipment and electronic equipment |
| CN112649671B (en) * | 2020-12-15 | 2022-06-14 | Oppo广东移动通信有限公司 | Detection circuit and detection method of electronic equipment and electronic equipment |
| CN113093030A (en) * | 2021-03-12 | 2021-07-09 | 深圳宝新创科技股份有限公司 | Automatic test method for battery charging and discharging and electronic equipment |
| CN113093030B (en) * | 2021-03-12 | 2023-01-31 | 深圳宝新创科技股份有限公司 | Automatic test method for battery charging and discharging and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN100547419C (en) | 2009-10-07 |
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