Circuit board mounting structure of sonometer

Abstract

The utility model discloses a circuit board mounting structure of an audiometer, which is characterized in that the circuit board mounting structure comprises a circuit board, the circuit board is mounted on a shell through a mounting part, the shell is made of plastic, and the mounting part is made of metal; the mounting component comprises a bottom plate and side plates arranged on the two sides of the bottom plate respectively, the circuit board is mounted on the bottom plate, and the circuit board is arranged between the two side plates; the end portion of each side plate is provided with an extending piece extending outwards, each extending piece is provided with an installation hole, and the bottom plate penetrates through the installation holes through bolts to be connected with the shell. According to the utility model, the failure rate is reduced, the service life is prolonged, and the audiometry effect is ensured.

Description

Technical Field

[0001] The utility model relates to an audiometer, in particular to a circuit board mounting structure of the audiometer. 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] Currently, the audiometer market is influenced by people's increasing emphasis on health and quality of life. 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 focus of social health issues.

[0004] In the prior art, the circuit board in an audiometer is directly mounted on the plastic housing. The circuit board contains numerous electronic components, and the plastic housing has poor heat dissipation. If the audiometer is used for an extended period, the electronic components on the circuit board may overheat, leading to increased failure rates. Furthermore, because the plastic housing is relatively light and has a poor texture, the overall feel is poor during use. Furthermore, the audiometer is prone to movement during use, impacting the user experience. Therefore, resolving these technical issues is a topic for those skilled in the art. Summary of the Invention

[0005] The utility model aims to provide a circuit board mounting structure for an audiometer, which can effectively extend the service life of the circuit board and reduce the failure rate by using the structure.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a circuit board mounting structure for an audiometer, comprising a circuit board, wherein the circuit board is mounted on a housing via a mounting component, wherein the housing is made of plastic and the mounting component is made of metal;

[0007] The mounting component includes a bottom plate and side plates respectively arranged on both sides of the bottom plate, the circuit board is mounted on the bottom plate, and the circuit board is arranged between the two side plates;

[0008] An outwardly extending extension piece is provided at the end of each side plate, a mounting hole is provided on the extension piece, and the bottom plate is connected to the shell through bolts passing through the mounting holes.

[0009] In the above technical solution, the circuit board is mounted on one side of the mounting component, and the other side of the mounting component is coated with an electromagnetic shielding coating.

[0010] In the above technical solution, the circuit board is connected to the base plate via connecting bolts.

[0011] In the above technical solution, a support sleeve is provided on each of the connecting bolts, and the two ends of the support sleeve respectively abut against the bottom plate and the circuit board;

[0012] And / or, the support sleeve is made of metal.

[0013] In the above technical solution, the support sleeve is made of copper.

[0014] In the above technical solution, a connecting plate is provided on the rear side of the bottom plate, the connecting plate is arranged between the two side plates, the end of the connecting plate is provided with a bent plate extending outward, and the circuit board is arranged on the front side of the connecting plate.

[0015] In the above technical solution, the bottom plate is further provided with a through slot, in which a display screen is installed. The display screen is connected to the bottom plate via a display screen mounting plate, and the display screen mounting plate is arranged between the circuit board and the bottom plate.

[0016] In the above technical solution, the end of the display screen passes through the through slot and is arranged on the outside of one side of the base plate, and the circuit board abuts against the display screen mounting plate;

[0017] A plurality of mounting bolts are also provided, and the mounting bolts pass through the circuit board and the display screen mounting plate and are connected to the bottom plate.

[0018] In the above technical solution, the mounting component is integrally formed.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] 1. In the present invention, the circuit board is mounted on the plastic housing via a mounting member made of metal. This metal mounting member can serve as a heat sink or heat dissipation channel, thereby improving the heat dissipation efficiency of the circuit board, reducing the failure rate caused by overheating, extending the service life of the circuit board and the electronic components thereon, and ensuring the stability and accuracy of audiometry during use of the audiometer.

[0021] 2. In the present invention, a support sleeve can be provided between the circuit board and the base plate, so that the circuit board and the base plate are suspended, so that a heat dissipation channel can be formed between the circuit board and the base plate, thereby improving the heat dissipation effect. At the same time, the support sleeve is made of metal, which can transfer the heat on the circuit board to the base plate, thereby improving the heat dissipation effect of the circuit board;

[0022] 3. The mounting components of this utility model are made of metal and can also act as a counterweight, improving the stability and texture of the audiometer and enhancing the user experience;

[0023] 4. The present invention also provides an electromagnetic shielding coating on the mounting component, which can effectively shield electromagnetic interference and electromagnetic leakage, and improve the stability and accuracy of the hearing test. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the installation structure of the circuit board and the installation component in the first embodiment of the present utility model;

[0025] Figure 2 This is an exploded view of the first embodiment of the present invention (connecting bolts are not shown);

[0026] Figure 3 This is a schematic structural diagram of the second embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present invention (the housing is not shown);

[0028] Figure 5 It is a schematic diagram of the exploded structure of the mounting components and the display screen in the second embodiment of the present invention.

[0029] Wherein: 1. Circuit board; 11. Mounting components; 12. Housing; 13. Bottom plate; 14. Side plate; 15. Extension piece; 16. Mounting hole; 17. Electromagnetic shielding coating; 18. Connecting bolts; 19. Support sleeve; 111. Connecting plate; 112. Bending plate;

[0030] 2. Circuit board; 21. Mounting components; 22. Housing; 23. Bottom plate; 24. Side panels; 25. Extensions; 26. Mounting holes; 27. Electromagnetic shielding coating; 28. Through slots; 29. ​​Display; 210. Display mounting plate. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0032] Example 1: See Figure 1 、 2 As shown, a circuit board mounting structure of an audiometer includes a circuit board 1, wherein the circuit board 1 is mounted on a housing 12 via a mounting component 11, wherein the housing 12 is made of plastic and the mounting component 11 is made of metal;

[0033] The mounting component 11 includes a bottom plate 13 and side plates 14 respectively provided on both sides of the bottom plate. The circuit board 1 is mounted on the bottom plate 13, and the circuit board 1 is provided between the two side plates 14.

[0034] An outwardly extending extension piece 15 is provided at the end of each side plate 14 . A mounting hole 16 is provided on the extension piece 15 . The bottom plate 13 is connected to the housing 12 via bolts passing through the mounting holes 16 .

[0035] In this embodiment, the circuit board serves as the main control board, and the housing comprises an upper housing and a lower housing. The circuit board is mounted on the lower housing via a mounting member. The upper housing is mounted with a display screen and operating buttons, and the circuit board is electrically connected to the display screen and operating buttons. The mounting member is made of metal, preferably sheet metal (iron or steel), which has strong thermal conductivity. In this manner, during use of the audiometer, especially during prolonged use, heat generated by the components on the circuit board can be transferred through the circuit board to the base plate of the mounting member. The heat is dissipated through the metal mounting member, and the mounting member acts as a heat sink, improving heat dissipation. This reduces the failure rate of the circuit board and the electronic components on the circuit board, extends the service life, and ensures stable operation of the circuit board and the components on the circuit board, ensuring the audiometric accuracy of the audiometer during audiometry. The side panels and extensions are provided for connection to the housing and also increase the heat dissipation area of ​​the mounting member, improving heat dissipation. More preferably, the mounting member is integrally formed, and can be stamped in one go, improving production efficiency and reducing costs.

[0036] See also Figure 1 、 2 As shown, the circuit board 1 is mounted on one side of the mounting component 11 , and the other side of the mounting component 11 is coated with an electromagnetic shielding coating 17 .

[0037] In the prior art, because the housing is made of plastic, it cannot effectively shield electromagnetic interference and electromagnetic leakage. As a result, when the audiometer is operating, due to the electromagnetic influence on the electronic components on the circuit board, a "squeaking" sound may be emitted from the air conduction earphone. Therefore, in this embodiment, an electromagnetic shielding coating is provided on one side of the mounting component to play a certain role in blocking external electromagnetic interference and preventing the electromagnetic influence on the electronic components on the circuit board as much as possible. As a result, when the audiometer is in use, the air conduction earphone is not disturbed, ensuring the accuracy of the audiometer measurement. The electromagnetic shielding coating can be composed of metal powder, a binder, and an additive. The metal powder can block the propagation of electromagnetic waves, and the binder and additive can improve the adhesion, durability, and shielding effect of the coating. Of course, the metal powder can also be other materials with electromagnetic shielding properties.

[0038] The circuit board 1 is connected to the base plate 13 via connecting bolts 18. The connecting bolts are made of metal and have thermal conductivity, so that after the electronic components on the circuit board generate heat, the heat can be transferred to the base plate through the connecting bolts, thereby improving the heat dissipation effect of the installed components on the circuit board.

[0039] For further information, see Figure 1 、 2 As shown, a support sleeve 19 is sleeved on each of the connecting bolts 18 , and two ends of the support sleeve 19 respectively abut against the bottom plate 13 and the circuit board 1 ; the support sleeve 19 is made of metal.

[0040] In this way, there is a distance between the circuit board and the base plate, forming a heat dissipation channel, so that the heat generated by the circuit board and the electronic components can be dissipated from the heat dissipation channel, thereby improving the heat dissipation effect. At the same time, the support sleeve is made of metal, which can form a heat dissipation channel between the circuit board and the base plate. At the same time, the two ends of the metal support sleeve are in contact with the base plate and the circuit board respectively, and the connecting bolts are also made of metal. Both of them play a heat conducting role. In this way, the heat generated by the circuit board and the electronic components on the circuit board can also be transferred to the mounting components through the support sleeve and the connecting bolts. On the basis of accelerating the heat dissipation in the heat dissipation channel, the heat dissipation is accelerated through the mounting components, thereby improving the heat dissipation effect of the circuit board and the electronic components on the circuit board.

[0041] More preferably, the support sleeve is made of copper, which has a better heat dissipation effect.

[0042] See also Figure 1 、 2As shown, a connecting plate 111 is provided on the rear side of the base plate 13 , and the connecting plate 111 is arranged between the two side plates 14 . The end of the connecting plate is provided with a bent plate 112 extending outward, and the circuit board 1 is arranged on the front side of the connecting plate 111 .

[0043] In this embodiment, the provision of the connecting plate and the bent plate further increases the heat dissipation area of ​​the mounted components, improving the heat dissipation effect. The connecting plate and the bent plate can also abut against the upper housing, creating a gap between the circuit board and the upper housing, thereby providing heat dissipation space between the circuit board and the upper housing. The bent plate also increases the contact area with the upper housing, enhancing the support effect.

[0044] At the same time, in this embodiment, the electromagnetic shielding coating is also coated on the back of the connecting plate (the circuit board is on one side of the connecting plate, and the electromagnetic shielding protrusion is on the other side of the connecting plate). The circuit board is installed in the space formed by the connecting plate, the bottom plate and the side plate. The electromagnetic shielding coating shields the influence of multiple directions on the circuit board as much as possible, thereby improving the electromagnetic shielding effect.

[0045] At the same time, the electronic components on the circuit board also have corresponding control switches, such as a power button, etc. Therefore, a clearance hole is also provided on the connecting plate facing the corresponding control switch, and the connecting plate also plays the role of positioning and limiting the control switch.

[0046] At the same time, in this embodiment, since the mounting component is made of metal, it is heavier and also acts as a counterweight, so that the audiometer is not easy to move when in use, has better stability and texture, and improves the user experience.

[0047] Example 2: See Figures 3-5 As shown, a circuit board mounting structure of an audiometer includes a circuit board 2, wherein the circuit board 2 is mounted on a housing 22 via a mounting component 21, wherein the housing 22 is made of plastic and the mounting component 21 is made of metal;

[0048] The mounting component 21 includes a bottom plate 23 and side plates 24 respectively provided on both sides of the bottom plate 23. The circuit board 2 is mounted on the bottom plate 23, and the circuit board 2 is provided between the two side plates 24.

[0049] An outwardly extending extension piece 25 is provided at the end of each side plate 24 . A mounting hole 26 is provided on the extension piece 25 . The bottom plate 23 is connected to the housing 22 via bolts passing through the mounting holes 26 .

[0050] In this embodiment, the circuit board is a display circuit board, which is used to control the normal operation of the display. The housing includes an upper housing and a lower housing. The circuit board is mounted on the upper housing via a mounting member. The upper housing also has a display and operation buttons mounted thereon (the circuit board in the first embodiment is a main control board, which is mounted on the lower housing via the mounting member). The mounting member is made of metal, preferably sheet metal (iron or steel), which has strong thermal conductivity. In this manner, during use of the audiometer, especially during prolonged use, heat generated by the components on the circuit board can be transferred through the circuit board to the bottom plate of the mounting member. The heat is dissipated through the metal mounting member, and the mounting member acts as a heat sink, improving heat dissipation. This reduces the failure rate of the circuit board and the electronic components on the circuit board, extends the service life, and ensures stable operation of the circuit board and the components on the circuit board, thereby ensuring the audiometric accuracy of the audiometer during audiometry. The side panels and extensions are provided for connection to the housing. At the same time, the side panels and extensions can also increase the heat dissipation area of ​​the mounting member, improving heat dissipation. More preferably, the mounting component is integrally formed and can be formed by one-time stamping, thereby improving production efficiency and reducing costs.

[0051] In this embodiment, the display screen circuit board (circuit board) is used to control the operation of the display screen, and it also generates a lot of heat. Therefore, by setting up the mounting components, the heat dissipation effect of the display screen circuit board can be improved, thereby reducing its failure rate, extending its service life, and ensuring the normal operation of the display screen.

[0052] The circuit board 2 is mounted on one side of the mounting component 21, and the other side of the mounting component 21 is coated with an electromagnetic shielding coating 27. Since the housing is made of plastic, it cannot effectively shield electromagnetic interference and electromagnetic leakage. Therefore, when the audiometer is operating, due to the electromagnetic influence on the electronic components on the circuit board, a "squeaking" sound may be emitted from the air conduction earphone. Therefore, in this embodiment, an electromagnetic shielding coating is provided on one side of the mounting component to block external electromagnetic interference to a certain extent, thereby preventing the electromagnetic influence on the electronic components on the circuit board as much as possible. This ensures that when the audiometer is in use, the air conduction earphone is not disturbed, thereby ensuring the accuracy of the audiometer's audiometry. The electromagnetic shielding coating can be composed of metal powder, a binder, and an additive. The metal powder can block the propagation of electromagnetic waves, and the binder and additive can improve the adhesion, durability, and shielding effect of the coating. Of course, the metal powder can also be other materials with electromagnetic shielding properties.

[0053] See also Figure 5As shown, the bottom plate 23 is further provided with a through slot 28 , in which a display screen 29 is installed. The display screen 29 is connected to the bottom plate 23 via a display screen mounting plate 210 , and the display screen mounting plate 210 is arranged between the circuit board 2 and the bottom plate 23 .

[0054] The end of the display screen 29 passes through the through slot 28 and is disposed on the outside of one side of the bottom plate 23 , and the circuit board 2 abuts against the display screen mounting plate 210 ;

[0055] A plurality of mounting bolts are also provided, and the mounting bolts pass through the circuit board and the display screen mounting plate and are connected to the bottom plate.

[0056] In this embodiment, to reduce space usage and facilitate installation of the display and circuit board, the display is connected to the base plate via a display mounting plate. The width of the display mounting plate is greater than the width of the through-slot, and the width of the display and the through-slot are adapted. Thus, when the display and circuit board are installed, the display passes directly through the through-slot and rests outside the through-slot until the display mounting plate rests against the base plate. The circuit board is then placed on the display mounting plate and fastened to the base plate using mounting bolts. This allows for modular assembly of the display and circuit board. Subsequently, only this modular bracket needs to be installed on the upper housing to quickly assemble the display, display circuit board, and upper housing, facilitating subsequent maintenance and disassembly. The display mounting plate is made of metal, which also accelerates heat dissipation from the circuit board and display, improving heat dissipation.

[0057] At the same time, in this embodiment, since the mounting component is made of metal, it is heavier and also acts as a counterweight, so that the audiometer is not easy to move when in use, has better stability and texture, and improves the user experience.

[0058] 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.

[0059] 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. A circuit board mounting structure for an audiometer, characterized in that: It includes a circuit board, the circuit board is installed on the housing via a mounting component, the housing is made of plastic, and the mounting component is made of metal; The mounting component includes a bottom plate and side plates respectively arranged on both sides of the bottom plate, the circuit board is mounted on the bottom plate, and the circuit board is arranged between the two side plates; An outwardly extending extension piece is provided at the end of each side plate, a mounting hole is provided on the extension piece, and the bottom plate is connected to the shell through bolts passing through the mounting holes.

2. The circuit board mounting structure of the audiometer according to claim 1, wherein: The circuit board is mounted on one side of the mounting component, and the other side of the mounting component is coated with an electromagnetic shielding coating.

3. The circuit board mounting structure of the audiometer according to claim 1, wherein: The circuit board is connected to the base plate via connecting bolts.

4. The circuit board mounting structure of the audiometer according to claim 3, wherein: A support sleeve is sleeved on each of the connecting bolts, and two ends of the support sleeve respectively abut against the bottom plate and the circuit board; And / or, the support sleeve is made of metal.

5. The circuit board mounting structure of the audiometer according to claim 4, characterized in that: The supporting sleeve is made of copper.

6. The circuit board mounting structure of an audiometer according to claim 1, wherein: A connecting plate is provided on the rear side of the bottom plate, the connecting plate is arranged between the two side plates, an end portion of the connecting plate is provided with a bent plate extending outward, and the circuit board is arranged on the front side of the connecting plate.

7. The circuit board mounting structure of an audiometer according to claim 1, wherein: The bottom plate is also provided with a through slot, in which a display screen is installed. The display screen is connected to the bottom plate via a display screen mounting plate, and the display screen mounting plate is arranged between the circuit board and the bottom plate.

8. The circuit board mounting structure of the audiometer according to claim 7, wherein: The end of the display screen passes through the through slot and is arranged on the outside of one side of the bottom plate, and the circuit board abuts against the display screen mounting plate; A plurality of mounting bolts are also provided, and the mounting bolts pass through the circuit board and the display screen mounting plate and are connected to the bottom plate.

9. The circuit board mounting structure of an audiometer according to claim 1, wherein: The mounting component is integrally formed.

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