CN201075546Y - Battery connector and mobile communication apparatus having the battery connector - Google Patents
Battery connector and mobile communication apparatus having the battery connector Download PDFInfo
- Publication number
- CN201075546Y CN201075546Y CNU2007200265065U CN200720026506U CN201075546Y CN 201075546 Y CN201075546 Y CN 201075546Y CN U2007200265065 U CNU2007200265065 U CN U2007200265065U CN 200720026506 U CN200720026506 U CN 200720026506U CN 201075546 Y CN201075546 Y CN 201075546Y
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- metal terminal
- battery
- battery connector
- power supply
- mobile communication
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Abstract
The utility model discloses a battery connector and a mobile communication device with the battery connector. The battery connector comprises a metal terminal connected with a power supply and a grounded metal terminal; wherein, a plurality of metal terminals connected with power supply are included and a plurality of grounded metal terminals are included. The battery connector of the utility model increases the area of the metal terminals that are connected to the battery, so as to effectively reduce the contact resistance between the batter and the battery connector, reduce the via resistance between the battery and a power supply pin of a chip in the mobile communication equipment and further decrease the emission current of the mobile communication equipment in maximum emission power to solve the trouble caused by the produced 217HZ interference. The effect is particularly obvious when applied in a cell-phone with double GSM systems; in addition, stand-by time of the cell-phone is remarkably prolonged and adverse impact of electromagnetic radiation on human bodies is lowered.
Description
Technical field
The utility model belongs to the electric supply installation technical field, specifically, relates to a kind of architecture advances that can effectively reduce the battery connector of emission current.
Background technology
GSM is the abbreviation of Global SystemforMobileCommunications (global system for mobile communications), is one of Digital Cellular System that takes the lead.GSM released first in 1991, allowed to use a wireless frequency to carry out 8 callings simultaneously, had become the actual standard in Europe and Asia at present.Come out till now from GSM, the spectrum utilization of this system adopts the mode of FDMA and TDMA combination always, the problem that this mode is brought is exactly that transmitting power is very big, GSM900 can reach 33dBm (2W), DCS1800 and PCS1900 can reach 30dBm (1W), and one of influence that big transmitting power like this causes is the moment of emission, and the moment power consumption of system increases.Theoretically, this big electric current is directly sent into the RF radio-frequency power amplifier of gsm system by the battery of system, yet, because it is unsatisfactory to the via resistance of RF power amplifier from battery, but exist the via resistance of some (to comprise the internal resistance of battery, path is walked line resistance or the like), according to Ohm's law: when electric current during by resistance, can produce certain voltage difference at the resistance two ends, therefore, when emission current raises rapidly, path voltage from battery to the RF power amplifier also rises thereupon, and the voltage that battery provides is constant, one of result who brings like this is that actual allocated has reduced to the voltage that is powered chip, thereby brings many-sided negative effect to gsm system, shortens such as stand-by time, system shuts down in advance, EMI disturbs and increases or the like.
This influence shows clearly in the gsm system of single mode, well imagine that the influence that produces is more serious in dual mode system, if the 217HZ that two GSM mobile handset can not effectively be controlled emission current and be caused disturbs, the adverse effect of each side will reduce the performance of this mobile phone greatly.
Based on this, how adopting simple structure to reduce battery is subject matter to be solved in the utility model to the loss of voltage between the power supply chip.
The utility model content
The purpose of this utility model has been to provide a kind of novel battery connector structure, effectively reduces battery to the loss of voltage between the power supply chip by the contact resistance that reduces between battery and the battery connector.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of battery connector comprises the metal terminal that connects power supply and the metal terminal of ground connection; Wherein, the metal terminal of described connection power supply includes a plurality of.
Further, the metal terminal of described ground connection also includes a plurality of.
Further again, the number of the number of the metal terminal of described connection power supply and the metal terminal of ground connection equates.
Preferably, the number of the metal terminal of the number of the metal terminal of described connection power supply and ground connection is 2.
In conjunction with the structure of above-mentioned battery connector, the utility model has proposed a kind of mobile communication equipment of this battery connector of application again, comprises battery, circuit system and is connected battery connector between described battery and the circuit system; Wherein, the power supply metal terminal and the grounded metal terminal that is connected battery cathode of a plurality of connection anodes are set on described battery connector, reduce the resistance of contact resistance by the contact area that increases battery tray and battery metal terminal, to effectively reduce the emission current under the mobile communication equipment maximum transmission power.
Wherein, described mobile communication equipment can be single mode or bimodulus cell phone, preferred dual-mode and dual-idle mobile phone.
Compared with prior art, advantage of the present utility model and good effect are: battery connector of the present utility model is connected to the area of the metal terminal of battery by increase, thereby can reduce the contact resistance between battery and the battery connector effectively, reduce battery to the via resistance between the chip for cell phone power pins, and then reduce emission current under the mobile phone maximum transmission power, disturb the puzzlement that is brought to solve consequent 217HZ, be applied in two gsm system mobile phones, its effect is especially obvious, but and the stand-by time of significant prolongation mobile phone, reduce the adverse effect that electromagnetic radiation causes human body.
After reading the detailed description of the utility model execution mode in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the structural representation of existing 2PIN battery connector;
Fig. 2 is the structural representation of existing 3PIN battery connector;
Fig. 3 is the structural representation of wherein a kind of embodiment of the novel battery connector that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
At present, the approach that the 217HZ that the reduction emission current causes disturbs has a lot, and the technical staff can seek solution to the path of RF power amplifier from the mainboard battery tray usually.Yet, many times, often after optimization, via resistance can be reduced several milliohms owing to be subjected to the restriction of high ESR value of the filter capacitor of practical wiring and employing, 217HZ disturbs the influence that brings still bigger, and part producer can only accept present situation at this moment.In fact, we have ignored the method that another one effectively reduces emission current: the contact area that increases battery tray and battery metal terminal.
Battery connector in the market mostly is the connector of 2PIN or 3PIN, and wherein, the battery connector of 2PIN comprises two metal terminals, and a metal terminal is used to connect the VBAT power supply, and another metal terminal is used for ground connection GND, as shown in Figure 1; The battery connector of 3PIN then comprises three metal terminals, except being used to connect two metal terminals of VBAT power supply and ground connection GND, a remaining metal terminal be generally used for temperature detection or unsettled need not, referring to shown in Figure 2.
The battery connector of 2PIN/3PIN and battery are used as the bridge that is connected of battery and mobile phone built-in system circuit by very little contact area, this contact area is so limited, when via resistance is optimized to a certain degree, the maximum impedance bottleneck on the connection at this place has just become from battery to the complete path that is powered chip.Connector data from the market is as can be seen: most connectors have only marked maximum contact resistance, common contact resistance≤50M Ω, therefore, the space that the impedance at this place can reduce is still very big, increase contact area effectively and can reduce via resistance (can get) according to resistance calculations formula R=ρ L/S, thus the decline that brings considerable emission current.Effectively implementation method is to increase the number that connects the metal terminal of battery plus-negative plate on the battery connector, promptly designs a plurality of power supply metal terminals that are connected with the VBAT power supply and the metal terminal of a plurality of ground connection.
Fig. 3 shows the concrete structure of wherein a kind of embodiment of the battery connector that the utility model proposes, the concrete battery connector that adopts 4pin, wherein two-way is used to connect the VBAT power supply, it is the positive pole of battery, two-way is used for ground connection GND in addition, the negative pole that promptly connects battery can double the contact area of battery and battery connector like this.Electric current when sending a telegram here simultaneously with the two cards of two GSM mobile handset calculates, when two nets are sent a telegram here simultaneously, emission current can reach 3 amperes under the maximum transmission power, reducing half according to effective impedance is that 25 milliohms are calculated, the interference voltage of 217HZ can effectively reduce about 75mv, this 217HZ for integral body disturbs, and has been very big improvement.In the test process of reality, effect is also very obvious.
Certainly, described battery connector also can be designed to include the version of more metal terminals, wherein, the number of the metal terminal of connection power supply and the metal terminal of ground connection can equate, can not wait yet, perhaps directly achieve the above object by the area that increases the metal terminal that has battery connector now, the utility model does not specifically limit this.
By above-mentioned battery connector being installed, when effectively reducing the interference voltage of 217HZ, can also bring following beneficial effect in cell phone inside:
(1) stand-by time of prolongation mobile phone.Under the constant situation of the needed transmitting power of radio frequency power amplifier, its voltage of sending into is more little, and needed electric current is big more, and the electric current of loss is big more, and the time that battery can use is also just short more.Therefore, adopt the battery connector that the utility model proposed to reduce voltage loss, improve and send into the voltage of RF power amplifier, thereby reduce current loss, prolong the service time of battery.
(2) avoid system to shut down in advance.In gsm system, the VBAT level that master chip is sent into chip by detection is determined cell voltage, and when big transmitting power caused the VBAT voltage of sending into chip to descend, it is low that system can think that cell voltage has passed through, thereby start shutdown programm in advance.And adopt battery connector that the utility model proposed because effective save battery power, so head it off well.
(3) reducing EMI disturbs.Big emission current is to peripheral devices, and especially metal device produces very big electromagnetic interference, may cause the serious distortion of system control signal, audio signal etc. when serious.The utility model is by reducing emission current, the improvement greatly of feasible system reliability and stability energy.
(4) reduce transmitting power to the harm that human body produces, guarantee health.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (10)
1. battery connector comprises the metal terminal that connects power supply and the metal terminal of ground connection; It is characterized in that: the metal terminal of described connection power supply includes a plurality of.
2. battery connector according to claim 1 is characterized in that: the metal terminal of described ground connection includes a plurality of.
3. battery connector according to claim 2 is characterized in that: the number of the number of the metal terminal of described connection power supply and the metal terminal of ground connection equates.
4. according to claim 1 or 2 or 3 described battery connectors, it is characterized in that: the number of the number of the metal terminal of described connection power supply and the metal terminal of ground connection is 2.
5. mobile communication equipment comprises battery, circuit system and is connected battery connector between described battery and the circuit system; Wherein, comprise the metal terminal that connects power supply and the metal terminal of ground connection on described battery connector, it is characterized in that: the metal terminal of described connection power supply includes a plurality of.
6. mobile communication equipment according to claim 5 is characterized in that: the metal terminal of described ground connection includes a plurality of.
7. mobile communication equipment according to claim 6 is characterized in that: the number of the number of the metal terminal of described connection power supply and the metal terminal of ground connection equates.
8. according to claim 5 or 6 or 7 described mobile communication equipments, it is characterized in that: the number of the number of the metal terminal of described connection power supply and the metal terminal of ground connection is 2.
9. according to claim 5 or 6 or 7 described mobile communication equipments, it is characterized in that: the metal terminal of described connection power supply all links to each other with the positive pole of described battery; The metal terminal of described ground connection all links to each other with the negative pole of described battery.
10. according to claim 5 or 6 or 7 described mobile communication equipments, it is characterized in that: described mobile communication equipment is a dual-standby handset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200265065U CN201075546Y (en) | 2007-08-08 | 2007-08-08 | Battery connector and mobile communication apparatus having the battery connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200265065U CN201075546Y (en) | 2007-08-08 | 2007-08-08 | Battery connector and mobile communication apparatus having the battery connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075546Y true CN201075546Y (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200265065U Expired - Fee Related CN201075546Y (en) | 2007-08-08 | 2007-08-08 | Battery connector and mobile communication apparatus having the battery connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075546Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231768A (en) * | 2010-07-30 | 2011-11-02 | 惠州Tcl移动通信有限公司 | Electro-static protection circuit of mobile terminal and mobile terminal provided with same |
| CN102685281A (en) * | 2012-03-28 | 2012-09-19 | 惠州Tcl移动通信有限公司 | Mobile terminal equipment |
-
2007
- 2007-08-08 CN CNU2007200265065U patent/CN201075546Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231768A (en) * | 2010-07-30 | 2011-11-02 | 惠州Tcl移动通信有限公司 | Electro-static protection circuit of mobile terminal and mobile terminal provided with same |
| CN102231768B (en) * | 2010-07-30 | 2014-06-25 | 惠州Tcl移动通信有限公司 | Electro-static protection circuit of mobile terminal and mobile terminal provided with same |
| CN102685281A (en) * | 2012-03-28 | 2012-09-19 | 惠州Tcl移动通信有限公司 | Mobile terminal equipment |
| CN102685281B (en) * | 2012-03-28 | 2016-03-30 | 惠州Tcl移动通信有限公司 | A kind of mobile terminal device |
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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: 20080618 Termination date: 20110808 |