Asonometer

Abstract

The utility model discloses an audiometer which comprises a bottom shell, an upper shell, a display screen, operation keys and a main control board, the upper shell is installed on the bottom shell, the display screen and the operation keys are installed on the upper shell, the main control board is arranged between the bottom shell and the upper shell, and the main control board is connected with the display screen. The electronic device is characterized in that the tops of the operation keys and the top of the display screen are exposed out of the top surface of the upper shell, and the operation keys are arranged on the front side of the display screen; the top surface of the upper shell and the top surface of the display screen are obliquely arranged upwards from front to back; a sound transmission hole and a microphone hole are respectively arranged on the upper shell on two sides of the display screen, a loudspeaker and a microphone are respectively arranged on the bottom surface of the upper shell, the loudspeaker is arranged right opposite to the sound transmission hole, and the microphone is arranged right opposite to the microphone hole. According to the utility model, the comfort and convenience of the operation of an operator are improved, and the accuracy of the hearing test is also ensured.

Description

Technical Field

[0001] The utility model relates to an audiometer used for hearing testing. Background Art

[0002] Audiometers are widely used in clinical hearing diagnosis, hearing protection, and hearing rehabilitation. Hearing tests primarily assess the degree of hearing loss. These tests are subjective measurements, measuring the minimum decibel level of sound that can be heard at different frequencies. This diagnostic method uses the subject's response to acoustic stimulation to assess hearing function and auditory system diseases. As a medical diagnostic device, the ease of use of an audiometer is crucial to both the efficiency of medical staff and the patient experience.

[0003] At present, the audiometer market is influenced by people's emphasis on health and quality of life, and more and more people are beginning to pay attention to their hearing health. With the advent of an aging society, hearing problems have gradually become one of the focuses of social health issues. In actual use, users need to use the audiometer frequently, so they need to frequently lower or raise their heads to look at the hearing curve on the LCD screen, which will cause certain fatigue to the user's neck. In addition, due to the unreasonable design of the previous buzzer and microphone (close to each other and close to the operator's operating side), they are particularly susceptible to the influence of noise during the operator's operation, thereby affecting the accuracy of the measurement. Therefore, how to solve the above technical problems is the direction that those skilled in the art need to work hard on. Summary of the Invention

[0004] The utility model aims to provide an audiometer, which improves the comfort of use and ensures the accuracy of measurement by using the structure.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is: an audiometer, comprising a bottom shell, an upper shell, a display screen, operation buttons and a main control board, wherein the upper shell is mounted on the bottom shell, the display screen and operation buttons are mounted on the upper shell, and the main control board is arranged between the bottom shell and the upper shell.

[0006] The top of the operation button and the top of the display screen are exposed on the top surface of the upper shell, and the operation button is arranged on the front side of the display screen;

[0007] The top surface of the upper shell and the top surface of the display screen are arranged to be inclined upward from front to rear;

[0008] The upper shell on both sides of the display screen is respectively provided with a sound hole and a microphone hole, and a speaker and a microphone are respectively installed on the bottom surface of the upper shell. The speaker is arranged opposite to the sound hole, and the microphone is arranged opposite to the microphone hole.

[0009] In the above technical solution, a convex portion protruding upward is provided on the top surface of the rear end of the upper shell, and a cavity connected to the bottom surface of the upper shell is provided at the bottom of the convex portion. The top surface of the convex portion is inclined upward from front to rear, and a through groove connected to the cavity is provided on the top surface of the convex portion, and the top of the display screen is arranged in the through groove.

[0010] In the above technical solution, a display screen mounting frame is further provided, and the display screen is connected to the upper shell via the display screen mounting frame;

[0011] And / or, the display screen mounting frame is made of metal.

[0012] In the above technical solution, a main control board mounting frame is installed on the bottom shell, the main control board mounting frame is made of metal, and the main control board is installed on the main control board mounting frame.

[0013] In the above technical solution, a plurality of button through holes are provided on the top surface of the upper shell and connected to the bottom surface of the upper shell. The operation buttons include a silicone button panel and a button circuit board. The button circuit board is installed in the bottom shell. A plurality of buttons are provided on the top of the silicone button panel. The top of each button passes through a button through hole and is arranged above the top surface of the upper shell. The bottom surface of the silicone button panel is against the button circuit board.

[0014] In the above technical solution, a concave cavity is further provided on the top surface of the upper shell, and the plurality of key through holes are provided on the bottom surface of the concave cavity;

[0015] A key panel is detachably installed in the cavity. The key panel is provided with a key clearance hole facing the key through hole. The top of the key passes through the key through hole and the key clearance hole and is arranged directly above the key panel.

[0016] In the above technical solution, a button mark is provided on the button panel beside each button hole;

[0017] And / or, the top surface of the key panel is flush with the top surface of the upper shell.

[0018] In the above technical solution, a microphone mounting tube is provided on the bottom surface of the upper shell, and the microphone mounting tube is arranged opposite to the microphone hole. The microphone is inserted into the microphone mounting tube, and the microphone is tightly fitted with the microphone mounting tube.

[0019] In the above technical solution, the angle between the top surface of the upper shell and the bottom surface of the bottom shell is 10° to 15°, and the angle between the top surface of the display screen and the bottom surface of the bottom shell is 30° to 35°.

[0020] In the above technical solution, the front end of the upper shell is provided with an arc-shaped portion extending toward the front and downward, and the bottom of the arc-shaped portion abuts against the front end surface of the bottom shell.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] 1. The top surface of the upper shell of the utility model is set obliquely upward, and the display screen is also set obliquely upward. The inclination angle of the display screen is larger, which reduces the fatigue of the user after long-term use and improves the comfort of the operator;

[0023] 2. In this utility model, the speaker and microphone are respectively placed on both sides of the display screen and behind the operation buttons, away from the operator, which can minimize the influence of the operator during operation. At the same time, the speaker and microphone are set separately to effectively ensure the accuracy of the measurement;

[0024] 3. The tilted top surface of the upper shell and the display screen of this utility model are more in line with the operator's operating habits, avoiding excessive force on the wrist and fingers and improving operating comfort;

[0025] 4. In the present invention, an arc-shaped portion is provided at the front end of the upper shell, which plays a guiding role with the inclined surface of the top of the upper shell, thereby improving the comfort of the operator;

[0026] 5. In this utility model, the display screen and the main control board are installed on the corresponding mounting frame, and the corresponding mounting frame is made of metal, which can facilitate the heat dissipation of the display screen and the main control board, thereby reducing the failure rate and ensuring the accuracy of the test;

[0027] 6. In the present invention, an electromagnetic shielding layer can also be coated on the corresponding mounting frame, which can effectively shield electromagnetic interference and electromagnetic leakage, ensure that no other noise will appear in the air conduction earphones during the hearing test, and improve the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention;

[0029] Figure 2 yes Figure 1 Side view of

[0030] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure;

[0031] Figure 4 This is an exploded view of the first embodiment of the present invention;

[0032] Figure 5This is a schematic structural diagram of the upper shell in Example 1 of the present utility model (bottom perspective);

[0033] Figure 6 It is a structural diagram of the upper shell and the key panel in the first embodiment of the present utility model.

[0034] Among them: 1. bottom shell; 2. upper shell; 3. display screen; 4. operation button; 5. main control board; 6. sound hole; 7. microphone hole; 8. speaker; 9. microphone; 10. arc-shaped part; 11. convex part; 12. cavity; 13. through groove; 14. installation cavity; 15. display screen cover; 16. display screen mounting frame; 17. main control board mounting frame; 24. button through hole; 25. silicone button board; 26. button circuit board; 27. button; 28. concave cavity; 29. ​​button panel; 30. button clearance hole; 31. microphone mounting tube. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] Example 1: See Figures 1 to 6 As shown, an audiometer includes a bottom shell 1, an upper shell 2, a display screen 3, operation buttons 4 and a main control board 5. The upper shell 2 is mounted on the bottom shell 1, the display screen 3 and the operation buttons 4 are mounted on the upper shell 2, and the main control board 5 is arranged between the bottom shell 1 and the upper shell 2. The top of the operation button 4 and the top of the display screen 3 are exposed on the top surface of the upper shell 2, and the operation button 4 is arranged in front of the display screen 3.

[0037] The top surface of the upper shell 2 and the top surface of the display screen 3 are arranged to be tilted upward from front to back;

[0038] The upper shell 2 on both sides of the display screen 3 is respectively provided with a sound hole 6 and a microphone hole 7, and a speaker 8 and a microphone 9 are respectively installed on the bottom surface of the upper shell 2. The speaker 8 is arranged opposite to the sound hole 6, and the microphone 9 is arranged opposite to the microphone hole 7.

[0039] In this embodiment, an audio output port is provided on the rear side of the bottom shell for connecting headphones or a microphone required for testing. In this embodiment, the top surface of the upper shell and the top surface of the display screen are both tilted upward from front to back, with the top surface of the upper shell and the bottom surface of the bottom shell forming an angle of 10° to 15°, preferably 12°, and the top surface of the display screen and the bottom surface of the bottom shell forming an angle of 30° to 35°, preferably 32°. In this arrangement, when the operator is operating, the operating buttons are close to the operator's side, close to the operator's hands, making operation easier. Furthermore, the tilted arrangement is more ergonomic, effectively preventing excessive wrist and finger strain, further facilitating operation and improving operator convenience and comfort. Furthermore, during operation, because the display screen is located behind the operating buttons, it is within the operator's line of sight. Furthermore, the tilted arrangement allows the operator to see the hearing curve on the display screen without lowering their head, further improving operator comfort and ergonomics. Furthermore, the display screen is 5.5 inches with a resolution of 720P, which allows the operator to see the display most clearly and intuitively. The display screen can be either non-touch or touch-sensitive. If a touch screen is used, the screen can also be operated by touch. The main control board has multiple control switches (such as the power switch), which pass through the bottom case and are exposed to the outside, making it easier for the operator to operate the audiometer.

[0040] Among them, the sound-permeable hole and the microphone hole are respectively set on both sides of the display screen, which can prevent the two from being too close to each other and interfering with each other. They are located at the rear end of the operation buttons, away from the operator, which can prevent the operator from generating noise during the operation or other unconscious actions and affecting the hearing test as much as possible, thereby ensuring the accuracy of the audiometry.

[0041] See also Figures 1 to 6 As shown, the front end of the upper shell 2 is provided with an arc-shaped portion 10 extending toward the front and downward, with the bottom of the arc-shaped portion 10 resting against the front end of the bottom shell 1. The arc-shaped portion is provided to connect with the front end of the top of the base, so that when the operator places the hand on the top surface of the upper shell, the arc-shaped portion can provide transitional support, preventing the operator's hand from being injured or hurt by the edge, making the operator's operation more comfortable.

[0042] See also Figures 1 to 6 As shown, a convex portion 11 protruding upward is provided on the top surface of the rear end of the upper shell 2, and a cavity 12 connected to the bottom surface of the upper shell 2 is provided at the bottom of the convex portion 11. The top surface of the convex portion 11 is inclined upward from front to back, and a through groove 13 connected to the cavity 12 is provided on the top surface of the convex portion 11. The top of the display screen 3 is set in the through groove 13.

[0043] In this embodiment, the angle between the top surface of the protrusion and the bottom surface of the base is 30° to 35°, preferably 32°. The display screen can be accommodated in the cavity of the protrusion, and the top of the display screen is inserted into the through groove. In this way, the cavity can be used to accommodate and install the display screen, and the through groove is used to make room for the display screen so that the operator can view the hearing data on the display screen.

[0044] See also Figure 4 As shown, a display screen mounting frame 16 is further provided, and the display screen 3 is connected to the upper shell 2 via the display screen mounting frame 15; the display screen mounting frame 16 is made of metal.

[0045] A main control board mounting frame 17 is mounted on the bottom shell 1 . The main control board mounting frame 17 is made of metal. The main control board 5 is mounted on the main control board mounting frame 17 .

[0046] In this embodiment, the mounting frame is provided for installing the main control board and the display screen, so that the top of the display screen can be inserted into the through slot, and in this way, the installation location of the display screen and the main control board does not occupy the space of the bottom shell.

[0047] In this embodiment, both the upper and lower shells are made of plastic, which results in a light overall weight of the audiometer. This can easily cause problems such as movement during operation by the operator, and the quality is also not good enough. Therefore, the mounting frame is made of metal to increase the weight of the audiometer. It can serve as an internal weight block to improve stability during operation to a certain extent, and also enhance the quality of the audiometer.

[0048] The metal mounting frame dissipates heat generated by the electronic components on the main control board and the display during operation, reducing failure rates and preventing overheating of the main control board and display components (which can lead to poor or inaccurate detection). The metal mounting frame also acts as a heat sink, improving heat dissipation.

[0049] In the previous structure, the display screen and the main control board are generally installed on the bottom shell. The bottom shell is made of plastic, which is not conducive to heat dissipation and the overall weight is relatively light. In this embodiment, a metal mounting frame is used to install the display screen and the main control board. This not only facilitates the heat dissipation of the main control board, but also facilitates the installation and removal of the display screen and the main control board.

[0050] In another embodiment, an electromagnetic shielding coating is further provided on the bottom surface of the main control board mounting bracket, and an electromagnetic shielding coating is also provided on the top surface of the display screen mounting bracket. In the prior art, the outer shell of the audiometer is made of plastic, which cannot effectively shield electromagnetic interference and electromagnetic leakage. This causes a "squeaking" sound in the air conduction earphones when the audiometer is in use, which can easily lead to inaccurate audiometry and affect the audiometric results. Therefore, the provision of an electromagnetic shielding coating can shield most electromagnetic interference and electromagnetic leakage, ensuring the normal use of the air conduction earphones during use of the audiometer and ensuring the detection effect.

[0051] See also Figure 3 、 4 As shown in Figure 6, a plurality of button through holes 24 are provided on the top surface of the upper shell 2 and connected to the bottom surface of the upper shell 2. The operation button 4 includes a silicone button plate 25 and a button circuit board 26. The button circuit board 26 is installed in the bottom shell 1. A plurality of buttons 27 are provided on the top of the silicone button plate 25. The top of each button 27 passes through a button through hole 24 and is arranged above the top surface of the upper shell 2. The bottom surface of the silicone button plate 25 rests on the button circuit board 26.

[0052] In the present invention, the display screen, loudspeaker, microphone, audio output port and key circuit board in the audiometer are all electrically connected to the main control board. A power line is also provided to supply power to the audiometer.

[0053] See also Figure 3 、 6 As shown, a cavity 28 is further provided on the top surface of the upper shell 2, and a plurality of key through holes 24 are provided on the bottom surface of the cavity 28;

[0054] A key panel 29 is detachably installed in the cavity 28 , and a key clearance hole 30 is provided on the key panel 29 facing the key through hole 24 . The top of the key 27 passes through the key through hole 24 and the key clearance hole 30 and is arranged directly above the key panel 29 .

[0055] Each of the button panels beside the button holes is provided with a button mark (not shown in the button mark figure);

[0056] The top surface of the key panel is flush with the top surface of the upper shell.

[0057] In conventional methods, the corresponding key identifiers are silk-screened on the keys of the silicone keypad. However, since the keys are frequently pressed by operators, the key identifiers on them can easily wear out and become lost over time, which can result in other operators not being able to clearly understand the function of the corresponding keys. Therefore, in this embodiment, by providing a key panel and setting the key identifiers on the key panel, there is no need to directly set the key identifiers on the keys of the silicone keypad, effectively extending the service life of the key identifiers. Even if the key identifiers are worn out, the key panel can be directly replaced, which is convenient, fast, and highly practical.

[0058] See also Figure 5 As shown, a microphone mounting tube 31 is provided on the bottom surface of the upper shell 2 , and the microphone mounting tube 31 is arranged opposite to the microphone hole 7 . The microphone 9 is inserted into the microphone mounting tube 31 , and the microphone 7 is tightly fitted with the microphone mounting tube 31 .

[0059] In this embodiment, the microphone is directly installed in close cooperation with the microphone mounting tube, which is convenient and quick to install and also easy to repair and replace.

[0060] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0061] In this utility model, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium. For example, the two can be connected by abutting or touching to form a mechanical abutment or abutment. The two can also be directly hung or hung through an intermediate medium. It can also be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this invention can be understood according to specific circumstances.

Claims

1. An audiometer comprising a bottom shell, an upper shell, a display screen, operation buttons, and a main control board, wherein the upper shell is mounted on the bottom shell, the display screen and operation buttons are mounted on the upper shell, and the main control board is disposed between the bottom shell and the upper shell, characterized in that: The top of the operation button and the top of the display screen are exposed on the top surface of the upper shell, and the operation button is arranged on the front side of the display screen; The top surface of the upper shell and the top surface of the display screen are arranged to be inclined upward from front to rear; The upper shell on both sides of the display screen is respectively provided with a sound hole and a microphone hole, and a speaker and a microphone are respectively installed on the bottom surface of the upper shell. The speaker is arranged opposite to the sound hole, and the microphone is arranged opposite to the microphone hole.

2. The audiometer according to claim 1, wherein: A convex portion protruding upward is provided on the top surface of the rear end of the upper shell, and a cavity connected to the bottom surface of the upper shell is provided at the bottom of the convex portion. The top surface of the convex portion is inclined upward from front to back, and a through groove connected to the cavity is provided on the top surface of the convex portion, and the top of the display screen is provided in the through groove.

3. The audiometer according to claim 2, wherein: A display screen mounting frame is also provided, and the display screen is connected to the upper shell via the display screen mounting frame; And / or, the display screen mounting frame is made of metal.

4. The audiometer according to claim 1, wherein: A main control board mounting frame is mounted on the bottom shell. The main control board mounting frame is made of metal. The main control board is mounted on the main control board mounting frame.

5. The audiometer according to claim 1, wherein: A plurality of button through holes are provided on the top surface of the upper shell and are connected to the bottom surface of the upper shell. The operation buttons include a silicone button panel and a button circuit board. The button circuit board is installed in the bottom shell. A plurality of buttons are provided on the top of the silicone button panel. The top of each button passes through a button through hole and is arranged above the top surface of the upper shell. The bottom surface of the silicone button panel is against the button circuit board.

6. The audiometer according to claim 5, wherein: A concave cavity is further provided on the top surface of the upper shell, and a plurality of key through holes are provided on the bottom surface of the concave cavity; A key panel is detachably installed in the cavity. The key panel is provided with a key clearance hole facing the key through hole. The top of the key passes through the key through hole and the key clearance hole and is arranged directly above the key panel.

7. The audiometer according to claim 6, wherein: A button mark is provided on the button panel beside each button hole; And / or, the top surface of the key panel is flush with the top surface of the upper shell.

8. The audiometer according to claim 1, wherein: A microphone mounting tube is provided on the bottom surface of the upper shell, and the microphone mounting tube is arranged opposite to the microphone hole. The microphone is inserted into the microphone mounting tube, and the microphone is tightly fitted with the microphone mounting tube.

9. The audiometer according to claim 1, wherein: An included angle of 10° to 15° is formed between the top surface of the upper shell and the bottom surface of the bottom shell, and an included angle of 30° to 35° is formed between the top surface of the display screen and the bottom surface of the bottom shell.

10. The audiometer according to claim 1, wherein: The front end of the upper shell is provided with an arc portion extending toward the front and downward, and the bottom of the arc portion abuts against the front end surface of the bottom shell.

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