1. Technical Field
The exemplary disclosure generally relates to battery cover latch assemblies, particularly to a battery cover latch assemblies used in portable electronic devices.
2. Description of Related Art
As a power source, batteries are widely used in portable electronic devices, such as personal digital assistants (PDAs), cellular phones and etc. Conventional batteries are received in the electronic devices, and battery covers are designed to engage with housings of the electronic devices to package the batteries. When the battery need to be replaced, the cover is removed and disengaged from the housing of the portable electronic device.
A clasp structure or latch structure is used with a conventional battery cover to engage with a housing of a portable electronic device. For example, a latch comprises a pair of hooks at one end of the battery cover and a locking pin protruding at the other end of the battery cover. Accordingly, a pair of troughs is defined in an end portion of a backside of a housing of the cellular phone, and a locking hole is defined in the other end portion of the backside of the housing. In assembly, the hooks are firstly inserted into the troughs in the backside of the housing. Then, the battery cover is pressed downwardly to the housing until the locking pin on the battery cover is inserted into the locking hole in the backside of the housing. The battery cover is thus assembled to the housing of the cellular phone. However, during disassembly, the battery cover is susceptible to being damaged, since a great force is exerted thereon. As a result, it is inconvenient for a user to change a battery in the housing of the cellular phone.
Therefore, there is a room for improved in the arts.
Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the exemplary battery cover latch assembly. Moreover, in the drawings like reference numerals designate corresponding parts throughout the several views. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like elements of an embodiment.
Referring to
The battery housing member 20 includes a bottom wall 22 and a plurality of sidewalls protruding from an edge portion of the bottom wall 22. The sidewalls includes a first sidewall 24, a second sidewall 26 opposite to the first sidewall 24, a third sidewall 28 connecting the first sidewall 24 with the second sidewall 26 and a fourth sidewall 29 opposite the third sidewall 28. The battery housing member 20 further has a partition plate 222 formed between the third sidewall 28 and the fourth sidewall 29, so a firsat compartment 224 is defined by the first sidewall 24, the second sidewall 26, the third sidewall 28 and the partition plate 222. A second compartment 225 is defined by first sidewall 24, the second sidewall, the fourth sidewall 29, and partition 222. The first compartment 224 is used for accommodating the battery 10. The second compartment 225 is used for accommodating the electronic circuitry of the portable electronic device and includes a cover (not shown) for protecting the circuitry.
The battery housing member 20 has two first guiding grooves 242 respectively defined in the first sidewall 24 and the second sidewall 26, and the first guiding grooves 242 are symmetrical to each other. One end of each first guiding groove 242 is located adjacent to the third sidewall 28, another end of each first guiding groove 242 is located adjacent to fourth sidewall 29. The shape of the first guiding grooves 242 is substantially arcuate, however, other shape can be substituted. The battery housing member 20 further has two first guiding poles 244 respectively protruding from the first sidewall 24 and the second sidewall 26. The first guiding poles 244 are defined between the third sidewall 28 and the first guiding grooves 242. Each guiding pole 244 has a first latching portion in the form of a slot 2442 defined therein. The first latching portion is configured to latch with the battery cover 30.
The battery cover 30 includes a cover plate 32 and two sliding plates 34 situated at two opposite edge of the cover plate 32. The sliding plates 34 extend outwardly from one end of the cover plate 32, and two opposite cantilever plates 342 are defined on the battery cover 30. The cantilever plates 342 are configured to facilitate mounting the cover plate 32 to the battery housing member 20, and the rational will be described afterherein.
Each sliding plate 34 has a second guiding groove 344 defined in an outer surface thereof. The second guiding grooves 344 have the same shape and size as the first guiding grooves 242. The first guiding poles 244 are slidably accommodated in the second guiding grooves 344, correspondingly. Each sliding plate 34 further includes a second latching portion in the form of a protrusion 3442 protruding from an inner surface of the second guiding groove 344. The second latching portions are latched with the first latching portions. Each cantilever plate 342 has a second guiding pole 346 protruding from a distal end thereof corresponding to the first guiding grooves 242. The second guiding poles 346 are slidably accommodated in the first guiding grooves 242, correspondingly.
Referring to
Then, the cantilever plates 342 are released to expand such that the first guiding poles 244 and the second guiding poles 346 are inserted into the second guiding grooves 344 and first guiding grooves 242, correspondingly. After that, the battery cover 30 is pushed so that the first guiding poles 244 and the second guiding grooves 344 are respectively slid in the second guiding grooves 344 and the first guiding grooves 242, until the battery cover 30 covers the compartment 224 of the battery housing member 20. At this time, the first latching portions are latched with the second latching portions in such a manner that the slots 2442 of the first guiding poles 244 accommodate the protrusions 3442 in the second guiding grooves 344. Thus, the battery cover 30 is firmly mounted to the battery housing member 20, i.e., the battery cover 30 is in a closed position shown in
When removing the battery 10 out of the compartment 224, the battery cover 30 is reversely pulled so that the protrusions 3442 can slide out of the slots 2442. At this time, the latching engagement between the battery cover 30 and the battery housing member 20 is released. The battery cover 30 is continuously pulled until the compartment 224 is exposed again as shown in
It is understood that the slots of the first guiding poles 244 and the protrusions 3442 may be replaced by other orientation mechanism. For instance, an end portion of each second guiding groove 344 for accommodating the first guiding poles 244 are slightly smaller than the first guiding poles 244, so that the first guiding poles 244 are securely accommodated in the end potions of the second guiding grooves 344. Also, the first guiding poles 244 and the second guiding grooves 344 may be omitted.
In the present embodiment, a guiding mechanism that includes the first guiding groove 242, the second poles 346, the second guiding grooves 344, and the first guiding poles 244 is provided such that the battery cover 30 can slide relative to the battery housing member 20 to cover/expose the compartment 224 so as to assemble/disassemble the battery 10.
It is to be understood, however, that even through numerous characteristics and advantages of the exemplary invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
---|---|---|---|
200810305864.9 | Nov 2008 | CN | national |