Separated mobile phone ultrasonic cooling device based on acoustic lens

Abstract

The invention discloses a separated mobile phone ultrasonic cooling device based on an acoustic lens. The separated mobile phone ultrasonic cooling device comprises a mobile phone body and a cooling device, the mobile phone body is provided with a magnetic attraction charging port, a rapid air flow channel is arranged in the cooling fin, and an air inlet hole A and an air outlet hole A are formed in a shell of the mobile phone body at the two ends of the rapid air flow channel; at least one ultrasonic excitation unit is connected in the cover cap, the side part of the ultrasonic excitation unit is connected with a focusing ultrasonic head, and an acoustic super lens is arranged in the focusing ultrasonic head; the cover cap is provided with an air hole and an exhaust hole B. One side, close to the mobile phone body, of the cover cap is connected with a magnetic suction interface, and an electrode plate is connected in the cover cap. The electrode plate is electrically connected to the magnetic suction interface, and the ultrasonic excitation unit is electrically connected to the electrode plate. An ultrasonic signal generated by the ultrasonic vibration excitation unit is transmitted to the acoustic super lens, so that flow field focusing air is formed, the air passes through the cooling fin with the built-in rapid air flow channel to rapidly cool accessories such as a battery in a mobile phone, and the cooling efficiency is improved while the energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of electronic products, and in particular to a separate type mobile phone ultrasonic cooling device based on an acoustic lens. Background Art

[0002] As the performance of smartphones continues to improve, the heat generated inside them also increases. Effective heat dissipation has become the key to ensuring the stable operation of mobile phones. Although traditional mobile phone cooling methods, such as fan cooling and heat pipe cooling, can alleviate the heating problem of mobile phones to a certain extent, they still have shortcomings in terms of heat dissipation efficiency, noise control and device size.

[0003] As a component that can change the propagation path of sound waves, acoustic superlens is widely used in ultrasonic imaging, ultrasonic therapy and other fields. In recent years, some researchers have begun to explore the combination of acoustic lenses and ultrasonic technology to achieve more efficient heat dissipation. This heat dissipation method uses the vibration effect of ultrasonic waves in the medium to quickly remove heat from the heat source and dissipate it to the surrounding environment through thermal convection or thermal radiation.

[0004] However, applying acoustic lens and ultrasonic technology to mobile phone cooling devices still faces some technical challenges, such as how to ensure that the ultrasonic wave can be accurately focused on the heat source of the mobile phone to achieve fixed-point heat dissipation, and how to separate the cooling device from the mobile phone for easy carrying and use by users.

[0005] Therefore, there is an urgent need for a separate mobile phone ultrasonic cooling device based on an acoustic lens. Summary of the invention

[0006] The purpose of the present invention is to provide a separate mobile phone ultrasonic cooling device based on an acoustic lens. The ultrasonic signal generated by the ultrasonic excitation unit is transmitted to the acoustic superlens, thereby forming a flow field to focus the air. The air passes through a heat sink with a built-in fast air flow channel to quickly cool down accessories such as the battery inside the mobile phone, thereby reducing energy consumption and improving cooling efficiency to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A separate mobile phone ultrasonic cooling device based on an acoustic lens comprises a mobile phone body and a cooling device; a magnetic charging port is provided on the mobile phone body, a heat sink is connected inside the mobile phone body, a fast air flow channel is provided inside the heat sink, and an air inlet A and an exhaust hole A are provided on the mobile phone body casing at both ends of the fast air flow channel; the cooling device comprises a cover, at least one ultrasonic excitation unit is connected inside the cover, a focused ultrasonic head is connected to the side of the ultrasonic excitation unit, and the focused ultrasonic head has an acoustic super lens built in; an air vent and an exhaust hole B are provided on the cover, a magnetic interface is connected on one side of the cover close to the mobile phone body, the magnetic interface can be adsorbed and conductively connected to the magnetic charging port, and an electrode sheet is connected inside the cover; the electrode sheet is electrically connected to the magnetic interface, and the ultrasonic excitation unit is electrically connected to the electrode sheet.

[0008] A further improvement of the present invention is that the ultrasonic excitation unit is a ceramic piezoelectric sheet, an interdigital electrode or an ultrasonic transducer.

[0009] A further improvement of the present invention is that the cover is opened on one side away from the mobile phone body, the opening is connected to the bottom plate, and the air vents are arranged on the bottom plate; there are multiple electrode sheets arranged side by side, the electrode sheets are connected to the bottom plate by screws, and positive and negative electrodes are provided on the electrode sheets, and the positive and negative electrodes are respectively connected in parallel to the magnetic suction interface.

[0010] A further improvement of the present invention is that the ultrasonic excitation unit is a ceramic piezoelectric sheet, the ceramic piezoelectric sheet is glued and pressed onto the electrode sheet, and the focused ultrasonic head is glued and pressed onto the ceramic piezoelectric sheet.

[0011] A further improvement of the present invention is that the heat sink is a copper sheet, and the fast air flow channel is a Tesla valve structure, and the two ends of the fast air flow channel are an air inlet C and an exhaust hole C respectively.

[0012] A further improvement of the present invention is that the air vent, the exhaust hole B, the air inlet A, the air inlet C, the exhaust hole C and the exhaust hole A are arranged in sequence to form a channel for air flow.

[0013] A further improvement of the present invention is that the acoustic superlens is made of a material that can conduct ultrasound, and the material of the acoustic superlens includes but is not limited to ceramic, metal or glass.

[0014] A further improvement of the present invention is that the cover and the bottom plate are made of insulating materials, and the materials of the cover and the bottom plate include but are not limited to epoxy resin, plastic or rubber.

[0015] A further improvement of the present invention is that the power range of the ceramic piezoelectric piece is 2W to 5W, and the frequency range is 20KHz to 200KHz.

[0016] Beneficial effects of the present invention: In the separate mobile phone ultrasonic cooling device based on acoustic lens of the present invention, the ultrasonic signal generated by the ultrasonic excitation unit is transmitted to the acoustic superlens, thereby forming a flow field to focus the air. The air passes through the heat sink with built-in fast air flow channel to quickly cool the internal battery and other accessories of the mobile phone, thereby reducing energy consumption and improving cooling efficiency.

[0017] The separate type mobile phone ultrasonic cooling device based on the acoustic lens of the present invention has simple structure, low cost, low energy consumption, high cooling efficiency and little impact on the environment.

[0018] The separate ultrasonic cooling device for mobile phones based on acoustic lenses of the present invention has a compact structure and an adjustable design. The separate design decouples the acoustic lens module from the mobile phone body, thereby avoiding interference of heat sources on ultrasonic components and facilitating modular maintenance.

[0019] The separate mobile phone ultrasonic cooling device based on the acoustic lens of the present invention has a fast air flow channel with a Tesla valve structure, which increases the air circulation speed, improves the heat exchange efficiency, and further improves the heat dissipation efficiency.

[0020] The separate type mobile phone ultrasonic cooling device based on acoustic lens of the present invention is not only suitable for cooling mobile phones, but also can be extended to other electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall external structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall external structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the internal structure of the cooling device of the present invention.

[0024] Figure 4 It is a schematic diagram of the external structure of the cooling device of the present invention.

[0025] Figure 5 It is a schematic diagram of the internal structure of the cooling device of the present invention.

[0026] Figure 6 It is a cross-sectional view of the heat sink of the present invention.

[0027] In the figure: 1-mobile phone body, 101-magnetic charging port, 102-air inlet A, 103-exhaust hole A, 2-heat sink, 201-fast air flow channel, 202-air inlet C, 203-exhaust hole C, 3-cover, 301-air vent, 302-exhaust hole B, 303-bottom plate, 4-ceramic piezoelectric sheet, 5-focused ultrasound head, 6-magnetic interface, 7-electrode sheet, 701-positive electrode, 702-negative electrode. DETAILED DESCRIPTION

[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0029] Example 1: Figures 1 to 6 As shown, a separate mobile phone ultrasonic cooling device based on an acoustic lens comprises a mobile phone body 1 and a cooling device; a magnetic charging port 101 is provided on the mobile phone body 1, a heat sink 2 is connected inside the mobile phone body 1, a fast air flow channel 201 is provided inside the heat sink 2, and an air inlet A102 and an exhaust hole A103 are provided on the mobile phone body 1 casing at both ends of the fast air flow channel 201; the cooling device comprises a cover 3, at least one ultrasonic excitation unit is connected inside the cover 3, a focused ultrasonic head 5 is connected to the side of the ultrasonic excitation unit, and the focused ultrasonic head 5 has an acoustic super lens built in; an air vent 301 and an exhaust hole B302 are provided on the cover 3, a magnetic interface 6 is connected to the side of the cover 3 close to the mobile phone body 1, the magnetic interface 6 can be adsorbed and conductively connected to the magnetic charging port 101, and an electrode sheet 7 is connected inside the cover 3; the electrode sheet 7 is electrically connected to the magnetic interface 6, and the ultrasonic excitation unit is electrically connected to the electrode sheet 7.

[0030] The ultrasonic excitation unit is a ceramic piezoelectric sheet 4, an interdigital electrode or an ultrasonic transducer.

[0031] The cover 3 is opened on one side away from the mobile phone body 1, and the opening is connected to the bottom plate 303, and the air vent 301 is arranged on the bottom plate 303; there are three electrode sheets 7 arranged side by side, and the electrode sheets 7 are connected to the bottom plate 303 by screws, and the electrode sheets 7 are provided with a positive pole 701 and a negative pole 702, and the positive pole 701 and the negative pole 702 are respectively connected in parallel to the magnetic suction interface 6.

[0032] The ultrasonic excitation unit is a ceramic piezoelectric sheet 4 , which is adhered and pressed onto the electrode sheet 7 by glue, and the focused ultrasonic head 5 is adhered and pressed onto the ceramic piezoelectric sheet 4 by glue.

[0033] The heat sink 2 is a copper sheet, and the fast air flow channel 201 is a Tesla valve structure, with an air inlet C202 and an exhaust hole C203 at both ends of the fast air flow channel 201.

[0034] The air vent 301, the exhaust hole B302, the air inlet hole A102, the air inlet hole C202, the exhaust hole C203 and the exhaust hole A103 are arranged in sequence to form a channel for air flow.

[0035] The material of the acoustic superlens is pure aluminum, the focal length of the focusing head is adjustable, and the focus should be inside the cover 3 coaxial with the exhaust hole B302.

[0036] The cover 3 and the bottom plate 303 are made of insulating materials, and the materials of the cover 3 and the bottom plate 303 include but are not limited to epoxy resin, plastic or rubber.

[0037] The power range of the ceramic piezoelectric sheet 4 is 2W to 5W, the frequency range is 20KHz to 200KHz, the diameter of the ceramic piezoelectric sheet 4 is 10mm, the thickness is 3mm, and the operating frequency is f=113.49kHz.

[0038] When this embodiment is working, the ultrasonic signal generated by the ceramic piezoelectric sheet 4 is transmitted to the acoustic superlens, thereby forming a flow field to focus the air. The air passes through the heat sink 2 with a built-in fast air flow channel 201, thereby quickly cooling down the battery and other accessories inside the mobile phone, thereby reducing energy consumption and improving cooling efficiency.

[0039] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A separate mobile phone ultrasonic cooling device based on an acoustic lens, characterized in that: The mobile phone body (1) comprises a mobile phone body (1) and a cooling device; the mobile phone body (1) is provided with a magnetic charging port (101); a heat sink (2) is connected to the mobile phone body (1); a fast air flow channel (201) is provided in the heat sink (2); and an air inlet A (102) and an air outlet A (103) are provided on the housing of the mobile phone body (1) at both ends of the fast air flow channel (201); the cooling device comprises a cover (3); at least one ultrasonic excitation unit is connected to the cover (3); and the side of the ultrasonic excitation unit is connected to A focused ultrasonic head (5) is provided, wherein the focused ultrasonic head (5) has a built-in acoustic superlens; the cover (3) is provided with an air vent (301) and an exhaust hole B (302); a side of the cover (3) close to the mobile phone body (1) is connected to a magnetic suction interface (6); the magnetic suction interface (6) can be adsorbed and conductively connected to a magnetic suction charging port (101); an electrode sheet (7) is connected inside the cover (3); the electrode sheet (7) is electrically connected to the magnetic suction interface (6), and the ultrasonic excitation unit is electrically connected to the electrode sheet (7).

2. A separate mobile phone ultrasonic cooling device based on an acoustic lens as claimed in claim 1, characterized in that: The ultrasonic excitation unit is a ceramic piezoelectric sheet (4), an interdigital electrode or an ultrasonic transducer.

3. A separate type mobile phone ultrasonic cooling device based on an acoustic lens as claimed in claim 2, characterized in that: The cover (3) is opened at one side away from the mobile phone body (1), the opening is connected to a bottom plate (303), and the air vent (301) is arranged on the bottom plate (303); the electrode sheets (7) are arranged in a plurality in parallel, the electrode sheets (7) are connected to the bottom plate (303) by screws, and a positive electrode (701) and a negative electrode (702) are provided on the electrode sheets (7), and the positive electrode (701) and the negative electrode (702) are respectively connected in parallel to the magnetic suction interface (6).

4. A separate type mobile phone ultrasonic cooling device based on an acoustic lens as claimed in claim 3, characterized in that: The ultrasonic excitation unit is a ceramic piezoelectric sheet (4), the ceramic piezoelectric sheet (4) is adhered and pressed onto the electrode sheet (7) by glue, and the focused ultrasonic head (5) is adhered and pressed onto the ceramic piezoelectric sheet (4) by glue.

5. The separate ultrasonic cooling device for mobile phones based on acoustic lens as claimed in claim 1, characterized in that: The heat sink (2) is a copper sheet, and the fast air flow channel (201) is a Tesla valve structure, with an air inlet hole C (202) and an air outlet hole C (203) at both ends of the fast air flow channel (201).

6. A separate type mobile phone ultrasonic cooling device based on an acoustic lens as claimed in claim 5, characterized in that: The air vent (301), the exhaust hole B (302), the air inlet A (102), the air inlet C (202), the exhaust hole C (203) and the exhaust hole A (103) are arranged in sequence to form a passage for air flow.

7. The separate ultrasonic cooling device for mobile phones based on acoustic lens as claimed in claim 1, characterized in that: The acoustic superlens is made of a material that can conduct ultrasound, and the material of the acoustic superlens is ceramic, metal or glass.

8. The separate ultrasonic cooling device for mobile phones based on acoustic lens as claimed in claim 1, characterized in that: The cover (3) and the bottom plate (303) are made of insulating materials, and the materials of the cover (3) and the bottom plate (303) are epoxy resin, plastic or rubber.

9. The separate ultrasonic cooling device for mobile phones based on acoustic lens as claimed in claim 4, characterized in that: The power range of the ceramic piezoelectric sheet (4) is 2W to 5W, and the frequency range is 20KHz to 200KHz.

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