Understanding the Features of Battery Holders for Secure Fit

Battery holder are eential component in portable electronic device, providing a ecure and reliable way to houe and connect batterie. Enuring a ecure fit i crucial to prevent any iue that could compromie the longevity and functionality of the device. Thi article delve into the hitory, deign conideration, and feature of battery holder to help you chooe the bet one for your portable device.

Hitory of Battery Holder

Early Patent (Late 1800 - Early 1900)

The concept of battery holder date back to the late 1800 when patent were iued for conumer product like flahlight. One of the earliet patent wa US patent no. 617592, iued in March 1898, which decribe an early metal flahlight that accepted D batterie. During thi period, battery holder were often baic, coniting of cardboard boxe with copper contact. Thee imple deign erved to hold and make electrical contact with batterie.

Development with Material (1920 - 1950)

By the 1920, battery holder evolved to ue twin metal clip (imilar to fue holder) to hold batterie in place while making electrical contact. Patent no. 1439429, granted in December 1922, outlined an aembly with two pring arm clip, a mall witch, and a lamp connected to the battery. Thi innovation allowed for more ecure and reliable connection.

The introduction of polypropylene and miniature batterie in the 1950 revolutionized battery holder. Thi development enabled the creation of maller, more compact holder, uitable for variou application like toy, decoration, and blinking item. In 1957, electric writwatche gained popularity, further driving the need for maller and more reliable battery holder.

Modern Innovation (1980 - Preent)

In the 1980, the electronic indutry aw the introduction of circuit board-mounted lithium coin or button cell battery holder. Patent no. 4487820 by MPD marked the emergence of the firt urface-mounted lithium battery holder. Since then, battery holder have continued to evolve, adapting to new material and technological advancement.

Type and Component of Battery Holder

Internal Connection

Battery holder commonly ue two method for making electrical contact with the battery terminal:
1. Flat Tab: Pre againt the battery terminal to etablih connection. Flat tab are often ued in maller application, providing a conitent and reliable connection.
2. Coiled Spring Wire: Provide flexibility and enure a ecure fit, accommodating light movement and battery expanion during dicharge.

External Connection

External connection on battery holder are uually made uing:
- Pin or Surface Mount Feet: Enure table connection to the device.
- Solder Lug: Ideal for permanent connection, particularly in portable device.
- Wire Lead: Ueful for temporary or modular connection.

Fixed v. Flexible Contact

For ecure fit, the deign of contact i crucial:
- Fixed Contact: Thee are cheaper and often ued in application where movement i minimal. However, they can be prone to lo of electrical connection due to movement.
- Flexible Contact: Offer greater flexibility, allowing for light expanion of the battery during dicharge. They are recommended for application requiring durability and functionality over time.

Polarity Protection

Polarity protection i eential to prevent revere battery iue:
- Receed Contact: Deigned to receive battery nub common on alkaline batterie.
- Platic Channel: Guide the battery to enure correct orientation.
- IntaLoad Technology: A recent innovation by Microoft that allow batterie to be inerted in either orientation without affecting functionality or cauing paive energy drain.

Deign Conideration

Human Factor

Deign hould conider the following apect:
- Eae of Battery Exchange: Uer hould be able to eaily remove and inert batterie, epecially in device ued frequently.
- Uer Age and Phyical Condition: Enure the deign accommodate uer of all age and abilitie.
- Safety Standard: Adhere to regulation and afety tandard to enure compliance and uability.

Material

Modern battery holder ue variou material to enure durability and tability:
- Polypropylene and Nylon: Commonly ued for battery holder rated for temperature up to 80-100C (176-212F).
- High-Temperature PBT, Nylon, LCP: Ued for circuit board-mounted lithium coin or button cell battery holder due to their ability to withtand high temperature during manufacturing procee.

Secure Fit Feature

Enuring a ecure fit involve everal deign feature:
1. Modular Deign: Battery holder can be mounted uing crew, eyelet, glue, or double-ided tape. A modular deign allow the holder to be eaily integrated into variou device.
2. Lid and Seal: A lid i often ued to retain and protect batterie. Sealing mechanim prevent damage to circuitry and component from battery leakage.
3. Flexibility in Contact: Flexible contact allow for light expanion of the battery during dicharge, enuring continuou electrical contact.
4. Protective Lid: A lid on the holder protect batterie from external damage and extend their lifepan.

Application and Uage

Portable Electronic Device

Portable device like writwatche, toy, and keyfob often ue battery holder for ecure and reliable battery torage. Thee device typically ue mall platic holder made with polypropylene or nylon, enuring durability and eae of ue.

Automotive and Emergency Lighting Equipment

Automotive and emergency lighting equipment often require robut battery holder to enure reliability in variou operating condition. Thee holder mut withtand vibration and temperature fluctuation, making material like teel and polycarbonate ideal.

Circuit Board Mounting in Handheld Computer

In handheld computer and keyfob, circuit board-mounted lithium battery holder are common. Thee holder are deigned to withtand high temperature during oldering procee, enuring reliable connection.

Concluion

Undertanding the feature and deign conideration of battery holder i crucial for enuring ecure fit and functionality in portable device. By conidering factor like internal and external connection, polarity protection, and ecure fit feature, you can chooe the bet battery holder for your need.

In ummary, ecure fit i vital for enuring the longevity and reliability of portable device. By electing the right battery holder baed on deign conideration, material, and intended ue, you can enhance the overall performance and uer experience.