CN203675271U - Bicrystal piezoelectric ceramic telephone receiver used for cell phone or tablet PC - Google Patents

Abstract

The utility model discloses a bicrystal piezoelectric ceramic telephone receiver used for a cell phone or a tablet PC. The bicrystal piezoelectric ceramic telephone receiver comprises a TP screen, an inner side surface of which is provided with a double faced adhesive tape in an adhesive manner. The double faced adhesive tape is provided with a multi-layer bicrystal ceramic wafer in an adhesive manner, and the multi-layer bicrystal ceramic wafer is connected with a flexible circuit board used for transmitting electric signals for the multi-layer bicrystal ceramic wafer. The bicrystal piezoelectric ceramic telephone receiver is advantageous in that the cavity space occupied by the bicrystal piezoelectric ceramic telephone receiver is small, and therefore the precious installation space in the cell phone or the tablet PC can be greatly saved; the TP screen is free of acoustic transmission holes, and therefore the perforation costs of the TP screen can be saved, the production yield of the TP screen can be improved, and the waterproof performance and the dustproof performance of the cell phone or the tablet PC can be improved; and in the noisy environment, the TP screen can be attached to the chin or the ear, and then the user can hear the content of the incoming calls clearly.

Description

Dual crystal piezoelectric ceramic receivers for mobile phones and tablet computers

technical field

The utility model relates to a receiver, in particular to a receiver used for mobile phones and tablet computers.

Background technique

At present, the commonly used receivers for mobile phones and tablet computers are dynamic receivers. The dynamic receiver is located in the shell of the mobile phone or tablet. There is a sound hole on the TP screen of the mobile phone or tablet. The dynamic receiver The sound is transmitted through the sound hole.

The disadvantages of the receiver with the above structure are: the dynamic receiver takes up a lot of cavity space in the mobile phone or tablet computer, and it is necessary to open a sound hole on the TP screen, and the cost of opening the sound hole is at least 2 to 3 yuan , the production cost is relatively high, and it is easy to damage the TP screen; moreover, the TP screen with sound-permeable holes has poor waterproof and dustproof effects. In addition, the dynamic receiver cannot clearly hear the incoming call in a noisy environment.

Utility model content

The technical problem to be solved by the utility model is: to provide a TP screen that does not need to open a sound hole, and has good waterproof and dustproof effects, and can clearly hear incoming calls in a noisy environment. Piezoelectric ceramic receiver.

In order to solve the above technical problems, the utility model adopts the following technical solutions.

Double-crystal piezoelectric ceramic receivers for mobile phones and tablet computers, including TP screens, are characterized in that double-sided tape is pasted on the inner side of the TP screen, and multiple layers of double-crystal piezoelectric ceramic sheets are pasted on the double-sided tape A flexible circuit board for transmitting electric signals is connected to the multi-layer bicrystalline piezoelectric ceramic sheet.

Further, the aforementioned dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers, wherein: the thickness of the double-sided adhesive tape is 0.5-3 mm.

The beneficial effects of the utility model: the cavity space occupied by the dual-crystal piezoelectric ceramic receiver is small, which greatly saves the precious installation space in the mobile phone or tablet computer, and there is no need to open a sound hole on the TP screen, which saves The punching cost of the TP screen improves the production qualification rate of the TP screen, and improves the waterproof and dustproof performance of the mobile phone or tablet computer; and in a noisy environment, it is only necessary to fit the TP screen to the jaw or ear. Hear the content of the incoming call very clearly.

Description of drawings

Fig. 1 is a structural schematic diagram of a dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers according to the present invention.

Detailed ways

The dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers according to the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

Referring to Fig. 1, the dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers described in the present invention includes a TP screen 1, and a double-sided surface with a thickness of 0.5 to 3 mm is pasted on the inner side of the TP screen 1. The adhesive 2 is pasted on the double-sided adhesive 2 with a multi-layer twin crystal piezoelectric ceramic sheet 3, and the multi-layer twin crystal piezoelectric ceramic sheet 3 is connected with a flexible circuit board 4 for transmitting electrical signals thereto.

The working principle of the dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers described in the utility model is as follows: The bicrystalline piezoelectric ceramic sheet 3 will generate audio vibrations, which will push the TP screen 1 to conduct sound and realize the receiver function.

Claims (2)

1. A dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers, including a TP screen, characterized in that: a double-sided adhesive is pasted on the inner side of the TP screen, and multiple layers of dual-crystal piezoelectric ceramics are pasted on the double-sided tape. The ceramic sheet is connected with a flexible circuit board for transmitting electrical signals to the multilayer bicrystalline piezoelectric ceramic sheet. 2. The dual-crystal piezoelectric ceramic receiver for mobile phones and tablet computers according to claim 1, characterized in that: the thickness of the double-sided adhesive is 0.5-3mm.

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