Cover plate of integrated piezoelectric transducer

Abstract

The embodiment of the utility model belongs to the technical field of cover plates. The utility model also relates to a cover plate of the integrated piezoelectric transducer, which comprises a glass cover plate, a piezoelectric transducer main body is arranged on the back surface of the glass cover plate, and a connecting piece is arranged between the piezoelectric transducer main body and the glass cover plate; the piezoelectric transducer body is attached to the back face of the glass cover plate, the vibration sounding or motor function is achieved, holes do not need to be formed in the cover plate or the side edge of the whole machine, the air tightness and waterproof performance of the toy are greatly improved, moisture invasion is effectively prevented, and therefore the service life of the toy is prolonged; and the piezoelectric transducer main body pushes the air to make a sound by pushing the glass cover plate to vibrate, so that the definition and loudness of the sound are ensured, and the sound production process is endowed with more dynamic and interesting effects.

Description

Technical Field

[0001] The utility model relates to the technical field of cover plates, and more specifically, to a cover plate integrated with a piezoelectric transducer. Background Technique

[0002] In the current intelligent toy market, with the rapid development of technology and the increasing growth of consumer demand, the integration and diversity of product functions have become the key factors in market competition. Especially for electronic toys targeting the children's market, the sound - generating function is not only an effective means to attract children's attention but also the basis for realizing diversified functions such as educational interaction, story - telling, and game feedback.

[0003] In traditional technologies, the design of such sound - generating toys often adopts the method of integrating a speaker on the main board to achieve sound playback. To ensure the effective transmission of sound, earphone holes need to be opened on the upper cover plate of the toy or the side of the whole machine so that the sound can be smoothly transmitted to the external environment. However, this design method has significant drawbacks: the existence of earphone holes seriously weakens the airtightness and waterproof performance of the toy. During daily use, once the toy comes into contact with water or other liquids, it is very easy for the liquid to penetrate into the interior through the earphone holes, resulting in faults such as circuit short - circuits and component damage, thereby reducing the reliability and service life of the product. Therefore, we make improvements and propose a cover plate integrated with a piezoelectric transducer. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is the problem that the sound - generating scheme of using a speaker with earphone holes will affect the airtightness and waterproofness of the toy.

[0005] To solve the above - mentioned technical problem, the utility model adopts the following technical scheme:

[0006] A cover plate integrated with a piezoelectric transducer, comprising: a glass cover plate, a piezoelectric transducer body is arranged on the back surface of the glass cover plate, and a connecting piece is arranged between the piezoelectric transducer body and the glass cover plate; in this application, by attaching the piezoelectric transducer body to the back surface of the glass cover plate, the functions of vibration sound - generation or motor are realized. Since there is no need to open holes on the cover plate or the side of the whole machine, this design greatly improves the airtightness and waterproof performance of the toy, effectively preventing the intrusion of moisture, thereby extending the service life of the toy; the piezoelectric transducer body makes the glass cover plate vibrate and then pushes the air to emit sound. This method not only ensures the clarity and loudness of the sound but also endows the sound - generating process with more dynamics and interest.

[0007] As an improved way of the utility model, the connecting piece is OCA optical glue, and the OCA optical glue is pasted between the piezoelectric transducer body and the glass cover plate.

[0008] As an improved manner of the present utility model, the thickness of the OCA optical adhesive is 0.15 MM.

[0009] As an improved manner of the present utility model, the thickness of the piezoelectric transducer body is 0.9 MM.

[0010] As an improved manner of the present utility model, the piezoelectric transducer body is encapsulated by a sheet ceramic wafer.

[0011] As an improved manner of the present utility model, the piezoelectric transducer body is bound with a piezoelectric transducer FPC.

[0012] As an improved manner of the present utility model, the piezoelectric transducer FPC is used for electrical connection and communication with the main board of the whole machine, so as to control the vibration frequency and intensity of the piezoelectric transducer, and further generate sound. The main board of the whole machine can be configured with a Synapics audio amplifier or other audio processing modules to optimize the sound output effect.

[0013] As an improved manner of the present utility model, the surface of the glass cover plate is treated by evaporation coating of AF to enhance the anti-fingerprint and scratch-resistant performance.

[0014] As an improved manner of the present utility model, characters and symbols are printed on the back of the glass cover plate and covered with a layer of reverse cover ink to ensure the optical sealing of the non-light-transmitting area.

[0015] As an improved manner of the present utility model, the characters and symbols are screen-printed with black ink, and the thickness of the black ink is 4 - 6 um, and the total thickness of the black ink and the reverse cover ink is 8 - 13 um to ensure the uniformity and light-tightness of the ink layer.

[0016] Compared with the prior art, the embodiments of the present utility model mainly have the following beneficial effects:

[0017] To solve the problem that the sound generation scheme using a speaker and a receiver hole in the prior art will affect the airtightness and waterproofness of the toy, this application realizes vibration sound generation or motor function by attaching the piezoelectric transducer body to the back of the glass cover plate. Since there is no need to open holes on the cover plate or the side of the whole machine, this design greatly improves the airtightness and waterproof performance of the toy, effectively prevents moisture intrusion, and thus extends the service life of the toy; the piezoelectric transducer body vibrates the glass cover plate to push the air to generate sound, which not only ensures the clarity and loudness of the sound, but also gives more dynamics and interest to the sound generation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the cover plate integrated with a piezoelectric transducer provided by this application;

[0019] Figure 2Schematic side view structure of the cover plate of the integrated piezoelectric transducer provided by this application;

[0020] Figure 3 The cover plate of the integrated piezoelectric transducer provided by this application Figure 2 Enlarged structure schematic diagram at position A in

[0021] Labels in the figure:

[0022] 100, glass cover plate; 200, OCA optical adhesive; 300, piezoelectric transducer main body; 301, piezoelectric transducer FPC. Specific embodiments

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this utility model; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The mention of "embodiment" in this text means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this utility model. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] As described in the background art, in the traditional technology, the design of such sounding toys often adopts the method of integrating a speaker on the main board to achieve sound playback. In order to ensure the effective transmission of sound, a receiver hole needs to be opened on the upper cover plate or the side of the whole machine of the toy so that the sound can be smoothly transmitted to the external environment. However, this design method has significant drawbacks: the existence of the receiver hole seriously weakens the airtightness and waterproof performance of the toy. During daily use, once the toy comes into contact with water or other liquids, it is very easy to penetrate into the interior through the receiver hole, resulting in faults such as short circuits of the circuit and damage to components, thereby reducing the reliability and service life of the product.

[0025] To solve this technical problem, this utility model provides a cover plate integrated with a piezoelectric transducer.

[0026] Specifically, please refer to Figures 1-3 , the cover plate integrated with a piezoelectric transducer specifically includes:

[0027] A glass cover plate 100, a piezoelectric transducer main body 300 is arranged on the back surface of the glass cover plate 100, and a connecting piece is arranged between the piezoelectric transducer main body 300 and the glass cover plate 100.

[0028] The cover plate integrated with a piezoelectric transducer provided by the present utility model realizes vibration sound generation or motor function by attaching the piezoelectric transducer main body 300 to the back surface of the glass cover plate 100. Since there is no need to open holes on the cover plate or the side of the whole machine, this design greatly improves the airtightness and waterproof performance of the toy, effectively prevents moisture intrusion, and thus extends the service life of the toy; the piezoelectric transducer main body 300 vibrates the glass cover plate 100 and then pushes the air to generate sound. This method not only ensures the clarity and loudness of the sound, but also gives more dynamics and interest to the sound generation process.

[0029] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] Embodiment 1 of the cover plate integrated with a piezoelectric transducer of the present utility model

[0033] The cover plate integrated with a piezoelectric transducer of the present utility model includes: a glass cover plate 100, a piezoelectric transducer main body 300 is arranged on the back surface of the glass cover plate 100, and a connecting member is arranged between the piezoelectric transducer main body 300 and the glass cover plate 100; the present application realizes vibration sound generation or motor function by attaching the piezoelectric transducer main body 300 to the back surface of the glass cover plate 100. Since there is no need to open holes on the cover plate or the side of the whole machine, this design greatly improves the airtightness and waterproof performance of the toy, effectively prevents moisture intrusion, and thus extends the service life of the toy; the piezoelectric transducer main body 300 vibrates the glass cover plate 100 and then pushes the air to generate sound. This method not only ensures the clarity and loudness of the sound, but also gives more dynamics and interest to the sound generation process;

[0034] This enables the toy to be stably used in various environments. Whether in humid climate conditions or in the case of accidental contact with water, the safety of the internal electronic components can be maintained. Moreover, the good airtightness can also prevent impurities such as dust from entering, further protecting the internal structure of the toy and reducing the probability of failures caused by impurities; the reason is that no holes can avoid moisture entering the toy interior from the holes, thereby protecting the internal electronic components from moisture erosion and extending the service life of the toy.

[0035] The piezoelectric transducer body 300 drives the glass cover plate 100 to vibrate, and then drives the air to emit sound. This way can make the sound propagate more directly, reduce the loss of sound during propagation, and thus ensure the clarity and loudness of the sound. At the same time, the way of vibrating to generate sound also makes the sound generation process more vivid and interesting, increasing the attractiveness of the toy.

[0036] Further, as Figure 1 shown, the connecting member is the OCA optical adhesive 200, and the OCA optical adhesive 200 is pasted between the piezoelectric transducer body 300 and the glass cover plate 100; using the OCA optical adhesive 200 as the connecting member can firmly paste the piezoelectric transducer body 300 and the glass cover plate 100 together, ensuring the stability of the connection; the high viscosity of the OCA optical adhesive 200 ensures that the piezoelectric transducer body 300 will not fall off easily during long-term use, thus ensuring the reliability of the toy. At the same time, its high transparency will not affect the appearance of the glass cover plate 100, making the whole toy look more beautiful; this is because the OCA optical adhesive 200 has high viscosity and high transparency, and can firmly paste the piezoelectric transducer 300 body on the glass cover plate 100 without affecting the appearance of the glass cover plate 100.

[0037] Further, as Figure 1 shown, the thickness of the OCA optical adhesive 200 is 0.15 MM. The thickness of 0.15 MM can not only ensure the stability of the connection, but also will not cause too much obstruction to the vibration transmission between the piezoelectric transducer body 300 and the glass cover plate 100. Such a thickness is just right, enabling the vibration generated by the piezoelectric transducer body 300 to be efficiently transmitted to the glass cover plate 100, thus ensuring the sound quality. At the same time, it will not increase the overall thickness of the toy, making the toy lighter and more convenient to carry and use; if the thickness is too large, it may affect the vibration transmission effect, thus reducing the clarity and loudness of the sound; if the thickness is too small, it may not provide enough viscosity, resulting in an insecure connection.

[0038] Further, as Figure 1 shown, the thickness of the piezoelectric transducer body 300 is 0.9 MM; the thickness of 0.9 MM can not only ensure the performance of the piezoelectric transducer body 300, but also will not make the entire cover plate 100 too heavy. The piezoelectric transducer body 300 with this thickness can generate sufficient vibration intensity, thus ensuring the sound effect.

[0039] Embodiment 2 of the cover plate integrating a piezoelectric transducer of the present utility model

[0040] The cover plate of the integrated piezoelectric transducer of the present utility model. Further, the piezoelectric transducer main body 300 is encapsulated with a sheet ceramic tablet; encapsulating with a sheet ceramic tablet can improve the stability and reliability of the piezoelectric transducer main body 300; the ceramic material has good insulation and high temperature resistance, which can protect the internal piezoelectric elements from the influence of the external environment, thereby ensuring that the piezoelectric transducer main body 300 can work stably under various conditions. This encapsulation method can also effectively prevent the piezoelectric elements from being mechanically damaged and extend the service life of the piezoelectric transducer main body 300. At the same time, the stability of the ceramic material also helps to improve the quality and stability of the sound; this is because the ceramic material has good insulation and high temperature resistance, which can protect the internal piezoelectric elements from the influence of the external environment, thereby improving the stability and reliability of the piezoelectric transducer main body.

[0041] Further, as Figure 1 shown, the piezoelectric transducer main body 300 is bound with a piezoelectric transducer FPC 301; binding the piezoelectric transducer FPC 301 can facilitate the electrical connection and communication with the main board of the whole machine, thereby controlling the vibration frequency and intensity of the piezoelectric transducer, and then generating sound. The flexibility of the FPC makes the connection more flexible, can adapt to different installation positions and angles, improves the design freedom of the toy. At the same time, the convenient electrical connection and communication also make the control of the piezoelectric transducer main body 300 more accurate, can adjust the sound effect according to different needs, and increases the playability of the toy.

[0042] Further, as Figure 1 shown, the piezoelectric transducer FPC 301 is used for electrical connection and communication with the main board of the whole machine, thereby controlling the vibration frequency and intensity of the piezoelectric transducer, and then generating sound. The main board of the whole machine can be configured with a Synapics audio amplifier or other audio processing modules to optimize the sound output effect; configuring an audio amplifier or other audio processing modules can optimize the sound output effect, making the sound clearer and more pleasant. The audio amplifier can enhance the signal intensity of the sound, improve the loudness and clarity of the sound, enabling the toy to emit sound clearly even in a noisy environment. The audio processing module can perform filtering, equalization and other processing on the sound, improving the quality of the sound and making it more pleasant. Such an optimization effect can improve the quality of the toy and bring a better auditory experience to children.

[0043] Embodiment Three of the Cover Plate of the Integrated Piezoelectric Transducer of the Present Utility Model

[0044] For the cover plate of the integrated piezoelectric transducer of the present utility model, further, the surface of the glass cover plate 100 is treated by evaporation coating with AF to enhance the anti-fingerprint and scratch-resistant properties; the surface of the glass cover plate 100 treated by evaporation coating with AF has anti-fingerprint and scratch-resistant properties, which can keep the glass cover plate 100 clean and beautiful. The anti-fingerprint property makes it difficult for fingerprints to be left on the glass cover 100 during use, always maintaining a clear appearance and improving the overall texture of the toy. The scratch-resistant property can protect the glass cover plate from being scratched during daily use, extending the service life of the glass cover plate 100. Such a treatment method not only improves the practicality of the toy but also increases its aesthetic degree; because the evaporation coating with AF treatment can form a protective film on the surface of the glass cover plate 100, reducing the influence of fingerprints and scratches on the appearance of the glass cover plate.

[0045] Further, as Figure 1 shown, characters and symbols are printed on the back of the glass cover plate 100 and covered with a layer of reverse cover ink to ensure the optical sealing of the non-transparent area. The characters and symbols are Figure 1 "ABC", "123", as well as the five-pointed star and sun patterns in it; printing characters and symbols on the back and covering them with reverse cover ink can ensure the optical sealing of the non-transparent area, improving the overall appearance quality of the toy. Clear characters and symbols can add more details and features to the toy, making the toy more personalized. The use of reverse cover ink ensures the darkness of the non-transparent area, enhancing the contrast of the characters and symbols and making them more eye-catching. At the same time, good optical sealing can also prevent light leakage, making the toy more energy-efficient during use; this is because the reverse cover ink can block the transmission of light, making the non-transparent area darker, thereby improving the overall appearance quality of the toy.

[0046] Further, as Figure 1 shown, the characters and symbols are screen-printed with black ink, and the thickness of the black ink is 4 - 6 um, and the total thickness of the black ink plus the reverse cover ink is 8 - 13 um to ensure the uniformity and light impermeability of the ink layer.

[0047] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the accompanying drawings, but they do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures made by using the content of the specification and drawings of the present utility model, directly or indirectly applied to other related technical fields, are equally within the scope of the patent protection of the present utility model.

Claims

1. A cover plate integrated with a piezoelectric transducer, characterized in that, Including: A glass cover plate (100), on the back surface of the glass cover plate (100), a piezoelectric transducer main body (300) is provided, and a connecting member is provided between the piezoelectric transducer main body (300) and the glass cover plate (100).

2. The cover plate of the integrated piezoelectric transducer according to claim 1, characterized in that, The connecting member is an OCA optical adhesive (200), and the OCA optical adhesive (200) is pasted between the piezoelectric transducer main body (300) and the glass cover plate (100).

3. The cover plate of the integrated piezoelectric transducer according to claim 2, characterized in that, The thickness of the OCA optical adhesive (200) is 0.15 MM.

4. The cover plate integrated with a piezoelectric transducer according to claim 1, characterized in that, The thickness of the piezoelectric transducer main body (300) is 0.9 MM.

5. The cover plate integrated with a piezoelectric transducer according to claim 1, characterized in that, The piezoelectric transducer main body (300) is encapsulated by a sheet ceramic wafer.

6. The cover plate of the integrated piezoelectric transducer according to claim 1, characterized in that, The piezoelectric transducer main body (300) is bonded with a piezoelectric transducer FPC (301).

7. The cover plate of the integrated piezoelectric transducer according to claim 6, characterized in that, The piezoelectric transducer FPC (301) is used for electrical connection and communication with the main board of the whole machine.

8. The cover plate of the integrated piezoelectric transducer according to claim 1, characterized in that, The surface of the glass cover plate (100) is treated by evaporation of AF.

9. The cover plate of the integrated piezoelectric transducer according to claim 1, characterized in that, Characters and symbols are printed on the back surface of the glass cover plate (100), and a layer of reverse cover ink is covered.

10. The cover plate of the integrated piezoelectric transducer according to claim 9, characterized in that, The characters and symbols are screen-printed with black ink, and the thickness of the black ink is 4 - 6 um, and the total thickness of the black ink plus the reverse cover ink is 8 - 13 um.

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