为什么我的手机电池有四个终端?第四个是什么? -- battery 领域 和 lg-optimus-one 领域 android 相关 的问题

Why my phone battery has four terminal? what is the use of the fourth?


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20
vote

问题

中文

我有一个lg Optimus(p500)。有时,我想知道为什么我的手机的电池有四个终端。我知道,两个终端是针对正的和负点,第三个终端连接到电池的内部热敏电阻监测其温度。仍然让我感到困惑,第四个终端可能是什么?

有趣的是,我的手机只有三个终端,因为电池有四个。我已经搜索了谷歌的答案,但除了关于温度监测的描述之外,没有有用的结果。

此外,由于另一种疑问也位于同一图像中,因此在以下图像中标记为"A" 的端口是什么?它看起来像一些排序的连接器,我的猜测是它是一个连接器的电缆,制造商可以在硬件中获得深度的东西。我还有这个功能的诺基亚手机,我猜这应该是所有手机的常见。

连接器

更新:我更热衷于知道电池上的第四个终端是否是什么,而不是为什么在电池中有三个中有三个。正如@axeman所说,这款电池也可以用于其他手机(LG)。

english

I have a LG Optimus One (P500). For sometime I am wondering why my phone's battery has four terminals. I am aware that two terminals are for the positive and negative points and the the third connects to the battery's internal thermistor to monitor its temperature. Still that leaves me puzzled with what the fourth terminal could be for?

Interestingly my phone has only three terminal where as the battery has four. I have searched for answers in Google but no useful results other than description about temperature monitoring comes up.

Also since another doubt also lies in the same image, what is the port that is marked as "A" in the following image? It appears to me as some sort connector and my guess is that it is a connector to a cable with which manufacturers can access something deep in hardware. The Nokia phones which I had also had this feature and I guess this should be common for all phone then.

Connectors

Update: I am more keen on knowing what the fourth terminal on the battery does rather than why there are three in phone and four in battery. As @Axeman said, this battery could be used in other phones (of LG) as well.

     
         
         

回答列表

13
 
vote

连接器A似乎是U.FL-R-SMT-10,可能是外部/额外天线。

U.FL,是用于高频信号的微型同轴RF连接器 高达6 GHz由日本的Hirose Electric Group制造。 1

(从 wikipedia )

 

Connector A seems a U.FL-R-SMT-10 and probably is for an external/additional antenna.

U.FL, is a miniature coaxial RF connector for high-frequency signals up to 6 GHz manufactured by Hirose Electric Group in Japan.1 U.FL connectors are commonly used inside laptops and embedded systems to connect the Wi-Fi antenna to a Mini PCI card. Female U.FL connectors are not designed with reconnection in mind, and they are only rated for a few reconnects before replacement is needed. The female U.FL connectors are generally not sold separately, but rather as part of a pigtail with a high-quality 1.32 mm doubly shielded cable, which allows for a low-loss connection.

(from Wikipedia)

 
 
   
   
10
 
vote
vote
最佳答案
 

如@axeman说,连接器是超小表面贴装同轴连接器(相当一口,仍然无法解决它如何缩写为u.fl),这是一种可用于任何无线电的扩展端口通信,包括GSM,WiFi,GPS。

和@lie ryan说,电池中的第四个端子用于将电池中的天线连接到主板上的NFC电路。谷歌中的一些搜索确认了这一点,并给出了以下信息:

如果他们在手机中有NFC的人可能会丢失NFC功能,如果他们试图用便宜的和重复的电池替换,这可能没有NFC天线作为所述这里。

我总结了所有要点,以使这个问题得到回答。我无法接受@ Axeman的答案,因为它没有回答NFC部分,而@lie ryan只添加了评论。

对他们来说都是!

更新:我碰巧收到LG P500的服务手册,该手册将RF连接器确认为标记为SW1001的下列图像。 输入图像描述
 

As @Axeman said, the connector is an Ultra Small Surface Mount Coaxial connector (quite a mouthful and still could not get how it was abbreviated as U.FL) which is a kind of expansion port which could be used for any radio communication, including GSM, WiFi, GPS.

And as @Lie Ryan said, the fourth terminal in the battery is for connecting the antennae in the battery to NFC circuitry on the motherboard. Few searches in Google confirmed this and gives raise to following information:

Those who have NFC in their phones, may lose the NFC capabilities if they try to replace with cheap and duplicate batteries which may not have the NFC antennae as said here.

I am summing up all the points to make this question as answered. I was unable to accept @Axeman's answer as complete as it did not answer the NFC part and @Lie Ryan had added as a comment only.

Kudos for them both!

Update: I happen to get hold of LG P500's service manual which confirms the RF connector with the following image tagged as SW1001. enter image description here

 
 
2
 
vote

谈论lg,这可能不是任何类型的nfc。我在手机上有一个带有4针端口的LG手机和4针电池。当我用一些遮蔽磁带盖4个引脚时,手机抱怨电池不是真实的,拒绝启动图片。

使用逻辑分析仪的快速戳布已经向我展示了一个电话和电池之间的通信。结论 - 它是"电池DRM" ,至少在一些LG手机上使用(我是LG Tribute)。如果您的LG手机有4个针电池端口,则会得到这种"DRM" 。如果没有,它根本不在乎。

 

Talking about LG, it's likely this is not any kind of NFC. I have an LG phone with 4-pin port on the phone and 4-pin battery. When I cover the 4th pin with some masking tape, the phone complains the battery is not genuine and refuses to boot picture.

A quick poke with a logic analyzer has shown me that there's a communication between phone and battery of some kind. Conclusion - it's "battery DRM", used at least on some LG phones (mine is LG Tribute). If your LG phone has 4 pin battery port, it's got this "DRM". If not, it simply doesn't care.

 
 
 
 
0
 
vote

电池上的额外连接适用于电池内的NTC热敏电阻,因此电话可以监控电池温度。您认为手机是否可以显示电池温度? STD在iPhone上,一些Androids还可以使用正确的软件显示它,但它确实在充电期间监控,以保护手机和电池免受火灾风险。

 

The extra connections on the battery are for an NTC thermistor within the battery so the phone can monitor the battery temp. How else do you think the phone can display the battery temp? Std on iphones, some Androids can also display it with the right software installed but it does monitor it during charging etc to protect the phone and battery from fire risk.

 
 
 
 

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