TWI551107B - Portable electronic device - Google Patents

Description

Portable electronic device

The invention relates to a portable electronic device.

In the process of climbing, the climber knows the altitude at any time and place, and often carries an altitude measuring instrument. At the same time, with the rapid development of multimedia and communication technologies, portable electronic devices such as mobile phones and PDAs (Personal Digital Assistants) are gradually being widely used in life, so they can be used for leisure or communication. Portable electronic devices have become one of the items that people carry with them. However, if the altitude measuring instrument and the portable electronic device used for leisure or communication need to be carried with you, too many carry-on items bring inconvenience to people's travel.

In view of this, it is necessary to provide a portable electronic device having an altitude measurement function.

A portable electronic device includes an input module, an information processing module and a display module. The portable electronic device further includes an air pressure electrically connected to the information processing module. a measuring module, the air pressure measuring module comprises a casing, an elastic piece sealing one end of the casing, and an inductor attached to the elastic piece, the casing and the elastic piece together form a sealed space. The sensor converts the shape variable of the elastic piece into a signal and transmits the signal to the information processing module. The module operation calculates a corresponding altitude value and transmits the altitude value to the display module.

The portable electronic device has the function of measuring altitude. In this way, when people travel, there is no need to carry an altitude meter, which simplifies the items that people carry with them and brings convenience to people's lives.

100‧‧‧Mobile phones

20‧‧‧Information Processing Module

40‧‧‧Input module

12‧‧‧Elastic film

14‧‧‧Reset components

1122‧‧‧through hole

1148‧‧‧ Groove

1162‧‧‧floor

1166‧‧‧ accommodating slots

132‧‧‧ sensor tablets

142‧‧‧ Seal

146‧‧‧ magnet

1422‧‧‧Substrate

1462‧‧‧ passage

10‧‧‧Pneumatic Measurement Module

30‧‧‧Display module

11‧‧‧Shell

13‧‧‧ sensor

112‧‧‧ bottom wall

114‧‧‧ side wall

116‧‧‧ accommodating frame

1164‧‧‧Connecting plate

118‧‧‧容容

134‧‧‧ wire

144‧‧‧metal pieces

148‧‧‧electromagnet

1424‧‧‧ Sealing plug

1 is a functional block diagram of a portable electronic device in accordance with a preferred embodiment of the present invention.

2 is an exploded view of a gas pressure measuring module in a portable electronic device in accordance with a preferred embodiment of the present invention.

Figure 3 is an exploded view of another perspective of the air pressure measuring module of Figure 2.

Figure 4 is an assembled view of the air pressure measuring module shown in Figure 2.

Figure 5 is a cross-sectional view of the air pressure measuring module shown in Figure 4 taken along line IV-IV.

The portable electronic device of the preferred embodiment of the present invention can be a mobile phone, a personal digital assistant (PDA), a palmtop computer, or the like. Referring to FIG. 1, the present invention will be described below by taking a mobile phone 100 as an example.

Referring to FIG. 1 , the mobile phone 100 includes a pressure measurement module 10 , an information processing module 20 , a display module 30 , and an input module 40 . The air pressure measurement module 10 is configured to measure the air pressure around the mobile phone 100 and feed back a signal to the information processing module 20. Then, the information processing module 20 processes the electrical signal and converts it into a pressure value and transmits it to the display module 30, thereby presenting the air pressure value to the user. The input module 40 is a human-computer interaction interface, such as a keyboard, for controlling the information processing module 20 and the air pressure measurement module 10.

Referring to FIG. 2 together, the air pressure measuring module 10 includes a housing 11 , an elastic piece 12 and an inductor 13 . In this embodiment, the housing 11 is a speaker of the speaker of the mobile phone 100, and the elastic piece 12 is a vibration piece of the speaker of the mobile phone 100. In this way, attaching the air pressure measuring module 10 to the speaker of the mobile phone can avoid excessively increasing the volume of the mobile phone 100 by installing the air pressure measuring module 10. The sensor 13 is configured to sense a shape variable of the elastic piece 12 and convert the shape variable into an electrical signal for transmission to the information processing module 20.

Referring to FIG. 3 together, the housing 11 includes a bottom wall 112, a side wall 114 extending from the edge of one side of the bottom wall 112, and a receiving frame 116 extending from the edge of the other side of the bottom wall 112. The bottom wall 112 is disposed around the entire edge of the side wall 114. The bottom wall 112 and the side wall 114 together define a receiving cavity 118. A through hole 1122 is formed in the bottom wall 112 and penetrates the receiving cavity 118. An end of the side wall 114 defines an annular groove 1148 for receiving the elastic piece 12. The accommodating frame 116 includes a semi-disc-shaped bottom plate 1162 parallel to the bottom wall 112 and a connecting plate 1164 connecting the bottom plate 1162 to the edge of the bottom wall 112. A receiving groove 1166 is formed between the bottom plate 1162 and the bottom wall 112.

The sensor 13 is preferably an inductive chip pressure sensor, and includes a sensing piece 132 and a plurality of wires 134 disposed at the end of the sensing piece 132. The wire 134 is used to connect the sensor 13 to the information processing module 20. The inductor 13 can be a strain gauge.

The air pressure measurement module 10 also includes a reset assembly 14. The reset assembly 14 includes a gasket 142, a metal piece 144, a magnet 146, and an electromagnet 148.

The gasket 142 includes a disc-shaped substrate 1422 and a sealing plug 1424 protruding from the substrate 1422. The shape of the substrate 1422 is similar to the shape of the bottom wall 112 of the housing 11, and the radius of the substrate 1422 is slightly smaller than the radius of the bottom wall 112, so that the substrate 1422 is received in the receiving groove 1166. The sealing plug 1424 is substantially cylindrical and has a cross section slightly larger than the cross section of the through hole 1122 of the housing 11, so that the sealing plug 1424 can be tightly stuck to the foregoing. The through hole 1122 is sealed to seal the through hole 1122. The sealing plug 1424 is made of a soft material having shrinkage, such as rubber.

The shape and size of the metal sheet 144 is substantially equivalent to the substrate 1422 of the gasket 142. The sum of the thickness of the metal piece 144 and the thickness of the substrate 1422 of the gasket 142 is smaller than the distance between the bottom wall 112 and the bottom plate 1162 so that the gasket 142 and the metal piece 144 can move between the bottom wall 112 and the bottom plate 1162. The magnet 146 has a passage 1462 extending therethrough for axial direction. When the magnet 146 is mounted in the housing 11, the passage 1462 will be aligned with the through hole 1122. The electromagnet 148 is electrically connected to a power source (not shown) in the mobile phone 100, so that the electromagnet 148 can be powered by the power source to magnetize the electromagnet 148 to generate a certain magnetic force.

Referring to FIGS. 4 and 5, the assembly process of the air pressure measuring module 10 is as follows: First, the magnet 146 is placed in the accommodating cavity 118, and the channel 1462 of the magnet 146 is aligned with the through hole 1122 of the housing 11. The elastic sheet 12 is fixed (e.g., bonded) in the recess 1148 to seal the ends of the side walls 114. Next, the sensing piece 132 is attached to the surface of the elastic piece 12, and the wire 134 is connected to the information processing module 20 (see FIG. 1). Then, the metal piece 144 and the sealing pad 142 are stacked together and placed in the receiving groove 1166 of the accommodating frame 116. At this time, the sealing plug 142 of the gasket 142 seals the through hole 1122 of the casing 11 to form a sealed space in the casing 11, and the metal piece 144 is placed between the gasket 142 and the bottom plate 1162. Finally, the electromagnet 148 is disposed on the bottom plate 1162, that is, the assembly of the air pressure measuring module 10 is completed.

The working principle of the mobile phone 100 for measuring the altitude is that the air pressure of the sealed space in the casing 11 is a certain value, and the air pressure is consistent with the ambient air pressure of a certain calibration point, so that the air pressure and the sealed space of the environment in which the casing 11 is located are When the internal pressures are inconsistent, the elastic piece 12 will be convex or concave due to a difference in air pressure between the inner and outer sides of the elastic piece 12. Deformation. Further, the sensor sheet 132 attached to the elastic sheet 12 is collectively deformed.

Once the sensing piece 132 is deformed, its resistance will change accordingly. If the current flowing through the sensing piece 132 is constant, the voltage across the sensing piece 132 will also change correspondingly with the deformation of the sensing piece 132. That is to say, when the air pressure at which the casing 11 is placed changes, the voltage across the sensing piece will change accordingly. Thus, the relationship between the air pressure at which the casing 11 is located and the voltage across the sensing piece 132 can be found by pre-testing. For example, when the air pressure of the casing 11 is P1, P2, P3, P4, ..., the voltage across the sensing piece 132 is V1, V2, V3, V4, ..., and then by P1V1, P2V2, P3V3, P4V4. The equivalent value can be used to plot the relationship between the air pressure at which the housing 11 is placed and the voltage across the sensing strip 132. In addition, the relationship between the air pressure value of the housing 11 and the altitude value can also be tested in advance and the corresponding relationship can be found.

Referring to FIG. 1 together, it can be seen from the above that the relationship between the voltage value at both ends of the sensing piece 132 and the air pressure value of the housing 11 and the relationship between the air pressure value and the altitude value of the housing 11 can be pre-tested. Out. Therefore, the relationship between the voltage value across the sensing piece 132 and the air pressure value of the housing 11 and the relationship between the air pressure value of the housing 11 and the altitude value are stored in the information processing module 20. When the mobile phone 100 is placed in the location to be tested whose altitude is unknown, a difference in air pressure is formed on the inner and outer sides of the elastic piece 12, and the sensing piece 132 is deformed by the air pressure difference and outputs a voltage signal to the information processing module 20. After receiving the voltage signal, the information processing module 20 stores the relationship between the voltage value at both ends of the sensing piece 132 and the air pressure value of the housing 11 and the air pressure value and the altitude value of the housing 11 Relationship, you can calculate the altitude value of the location to be tested. The altitude value digital signal is then converted into an analog signal for transmission to the display module 30. The operator can know the altitude of the location by the display module 30.

When the pressure measurement module 10 is used for a period of time, the measurement accuracy thereof may be decreased. Therefore, the reset component 14 is required to calibrate the air pressure measurement module 10. That is, electricity The magnet 148 is energized to make it magnetic and generates a magnetic attraction to the metal piece 144. The metal piece 144 is moved away from the bottom plate 112 by the magnetic force of the electromagnet 148 against the magnetic force of the magnet 146, and the traction sealing plug 1424 is pulled out of the through hole 1122. Therefore, in this embodiment, the magnetic attraction of the metal piece 144 after the electromagnet 148 is energized should be greater than the magnetic attraction of the magnet 146 to the metal piece 144.

Once the sealing plug 1424 is slid out of the through hole 1122, the atmosphere of the accommodating cavity 118 of the housing 11 and the calibration site will be turned on, that is, the air pressure in the accommodating cavity 118 is the same as the atmospheric pressure at the calibration point, and both sides of the elastic piece 12 are at this time. The air pressure difference is zero and no deformation occurs. Then, the electromagnet 148 is powered off, and the metal piece 144 seals the through hole 1122 again under the magnetic attraction force of the magnet 146 to form the sealed space again in the casing 11, so that the air pressure in the sealed space can be made. The atmospheric pressure at the calibration location is equal.

The portable electronic device 100 of the present invention has a function of measuring an altitude by providing an air pressure measuring module 10 and an information processing module 20. In this way, when people travel, there is no need to carry an altitude measuring instrument, thereby reducing the number of articles that people carry when they travel, and bringing convenience to people.

10‧‧‧Pneumatic Measurement Module

12‧‧‧Elastic film

14‧‧‧Reset components

1148‧‧‧ Groove

134‧‧‧ wire

144‧‧‧metal pieces

148‧‧‧electromagnet

1424‧‧‧ Sealing plug

11‧‧‧Shell

13‧‧‧ sensor

118‧‧‧容容

132‧‧‧ sensor tablets

142‧‧‧ Seal

146‧‧‧ magnet

1422‧‧‧Substrate

1462‧‧‧ passage

Claims (8)

A portable electronic device includes an electrical input module, an information processing module, and a display module. The improvement is that the portable electronic device further includes an electrical component and the information processing module. a pneumatic measuring module, the pneumatic measuring module comprising a casing, an elastic piece sealing one end of the casing, and an inductor attached to the elastic piece, the casing and the elastic piece together forming a a sealing space, the deformation of the elastic piece drives the deformation of the inductor, the resistance of the inductor changes and is converted into a voltage signal and transmitted to the information processing module, and the information processing module calculates a correspondence according to the voltage signal operation An altitude value, and the altitude value is transmitted to the display module, the housing includes a bottom wall and a side wall extending from a side of the bottom wall, the bottom wall and the side wall together define a receiving cavity The bottom wall defines a through hole penetrating the receiving cavity, and the air pressure measuring module further comprises a reset component, the resetting component releasably sealing the through hole. The portable electronic device of claim 1, wherein the elastic piece is sealed to an end of the side wall. The portable electronic device of claim 2, wherein the other side of the bottom wall extends a receiving frame, the receiving frame includes a bottom plate opposite to the bottom wall, the bottom plate and the bottom plate The bottom wall defines a receiving groove. The resetting assembly includes a gasket, a metal piece, a magnet and an electromagnet. The magnet is received in the receiving cavity of the housing, and the sealing pad and the metal The chip is placed in the accommodating frame, and the electromagnet is disposed on the bottom plate. The portable electronic device of claim 3, wherein the electromagnet has a magnetic attraction force greater than a magnetic attraction of the magnet to the metal piece after being energized. The portable electronic device of claim 4, wherein the gasket comprises a substrate and a sealing plug on the protruding substrate, the magnet attracting the metal sheet to seal the sealing gasket The through hole is sealed. The portable electronic device of claim 5, wherein the magnet has a passage through which the through hole passes, and the passage penetrates through the through hole of the housing. The portable electronic device of claim 6, wherein the sealing plug is made of a soft material. The portable electronic device of claim 6, wherein a sum of a thickness of the substrate and the metal piece is smaller than a distance between the bottom plate and the bottom wall.