This application claims priority to Chinese Patent Application No. 201510235431.0 filed on May 11, 2015, the contents of which are incorporated by reference herein.
The subject matter herein generally relates to protection case of electronic device.
Electronic devices can be received in protection cases. In some configurations, the electronic devices can be configured to communicate with peripheral devices. Some of the peripheral devices can include a cord.
The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
The present disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. Several definitions that apply throughout this disclosure will now be presented. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.”
The present disclosure is described in relation to a cord coiling device for coiling a headphone cord. The cord coiling device comprises a body, a fixing pillar accommodated in the body, a deceleration gear received in an accommodation cavity, a plurality of first magnets set on a first bottom side of the body, and a plurality of second magnets set on the deceleration gear. The body and the deceleration gear remain stable under an attraction force between the first magnets and second magnets, the deceleration gear rotates under a external force, then the body rotates to coil the headphone cord; when a headphone is stuck, the headphone cord is strained and applies a puling force to the body to stop the body, the body stops rotating and the deceleration gear continues rotating under the external force. An electronic device having the cord coiling device is also provided.
The coiling reel 120 and the fixing pillar 130 are accommodated in the housing 110. An opening 111 is defined on a sidewall of the housing 110 for a headphone cord 151 to pass through. In at least one embodiment, the fixing pillar 130 is fixed in the housing 110. In an alternative embodiment, the fixing pillar 130 can be fixed in an electronic apparatus.
The coiling reel 120 can include a body 1200 and a number of gears. A groove 1201 for accommodating the headphone cord 151 is defined on the body 1200. The body 1200 can define an accommodation cavity 1202 (see
The gears can include a deceleration gear 1204, a transmission gear 1205 and a driving gear 1206. The motor 140 can include a rotation pole 141. The rotation pole 141 passes through a through hole 131 defined on the fixing pillar 130 and is coupled to the driving gear 1206 to drive the driving gear 1206. The driving gear 1206 and the transmission gear 1205 are fixed in the deceleration gear 1204. The transmission gear 1205 is placed between the deceleration gear 1204 and the driving gear 1206. The transmission gear 1205 is further engaged with the deceleration gear 1204 and the driving gear 1206 to drive the deceleration gear 1204.
When coiling the cord, a user actuates a switch, such as a switch set on the headphone 150, to start the motor 140. The rotation pole 141 of the motor 140 drives the driving gear 1206 to rotate. Then the driving gear 1206 drives the transmission gear 1205, and the transmission gear 1205 drives the deceleration gear 1204. The body 1200 and the deceleration gear 1204 can stand stably under an attraction force between the first magnets 1211 and second magnets 1212. The body 1200 then rotates to coil the headphone cord 151.
When the coiling is finished, the headphone 150 is locked in the accommodation groove 210. Then the headphone cord 151 is strained and applies a pulling force to the body 1200 to stop the body 1200. A torque of the pulling force can be greater than a torque of the attraction force between the first magnets 1211 and second magnets 1212, thereby causing the body 1200 to stop. The deceleration gear 1204 continues rotating under the drive of the transmission gear 1205. The deceleration gear 1204 can continue rotating for a short time period, then the motor 140 stops activating and the deceleration gear 1204 to stop rotating. The body 1200 and the deceleration gear 1204 can stand stable under the attraction force between the first magnets 1211 and second magnets 1212.
The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of a protection case. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims.
Number | Date | Country | Kind |
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201510235431.0 | May 2015 | CN | national |