Invisible ceiling microphone

Abstract

The utility model provides a microphone with an invisible ceiling, which comprises a ceiling body, a sliding rail is arranged in the ceiling body, a shell is nested on the outer surface of the sliding rail, and limiting plates are arranged on two sides of the shell. According to the microphone with the invisible ceiling, the shell is limited by arranging structures such as a sliding rail and a limiting plate, so that the microphone is limited, a clamping block is embedded into a sliding groove to limit the shell, and the clamping block moves in the sliding groove, so that the microphone is driven to move, and the microphone is more flexible in use; and the limiting plate performs limiting through mutual cooperation of the spring and the rebounding device, and further performs limiting through mutual cooperation of the connecting rod and the cross rod, so that the limiting plate is more stable in use, and the use stability of the microphone is further effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound transmission, and more specifically to an invisible ceiling microphone. Background Art

[0002] Existing family cars generally install microphones in the front ceiling lights. However, with the increase in user demand, installing microphones only in the ceiling light position can no longer meet the applications of multi-range calls, voice recognition, ANC noise reduction, etc. for the entire vehicle. Therefore, more and more automobile manufacturers are considering placing microphones on the ceiling. The existing ceiling microphone installation technology has complex electrical and acoustic designs in the microphone, so the product size is large, and the size of the grille that fits the microphone is usually also large (generally larger than φ25mm). The size of the microphone and the grille are both larger than the ceiling opening, so the ceiling can be sandwiched in the middle to ensure good fixation of the product. The appearance inside the ceiling is poor. When the microphone is placed above the ceiling, there is a long distance between the sound from the grille to the microphone. The high-frequency part of its amplitude-frequency response will cause the high-frequency amplitude-frequency response to be very sensitive due to the Holm-Hertz resonance effect in the sound pipe / cavity, which is easy to cause harmonic distortion and intermodulation distortion, affecting the user experience; structurally, the microphone and the grille are mostly connected by buckles or springs, which may cause users to operate incorrectly, and the grille will be removed by force, and the ceiling can only be removed for maintenance.

[0003] In response to the above problems, regarding the technical problem that the existing microphone has a grille that affects its use, after a lot of searches, a car microphone module with patent number 202020097716.9 was found, which belongs to the field of sound transmission technology, including a microphone assembly and a circuit assembly located on the lining of the roof, the microphone assembly includes a grille, a microphone and a first circuit board connected to the microphone, the microphone is arranged on the grille, the circuit assembly includes a second circuit board connected to the external circuit, and the first circuit board is electrically connected to the second circuit board; the microphone assembly and the circuit assembly are separated, that is, the first circuit board is separated from the second circuit board. Except for the microphone arranged on the first circuit board, all other components are arranged on the second circuit board. The grille size only needs to meet the requirements of the integral injection molded probe and the coating requirements of the first circuit board, that is, it can be designed to be as small as possible, and the estimated size can be between φ15 and φ20. Its size is small and the appearance inside the roof is good, but the technical solution provided by the patent has the following problems:

[0004] Most microphones can only be fixed in one position for use and cannot be adjusted according to the user's habits, making the microphone inflexible when used. At the same time, when the microphone is affected by the external environment, the position cannot be adjusted, thus affecting the use of the microphone;

[0005] The utility model can improve the flexibility of the microphone. Utility Model Content

[0006] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides an invisible ceiling microphone.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an invisible canopy microphone, comprising: a canopy body, a slide rail is arranged inside the canopy body, and a shell is nested on the outer surface of the slide rail, and limit plates are arranged on both sides of the shell.

[0008] A further preferred solution is that the inner part of the tent body is hollow, a plurality of support plates are arranged on the outer side of the slide rail, and the support plates are arc-shaped, and both ends of the support plates are fixed inside the tent body.

[0009] A further preferred solution is that both ends of the slide rail are provided with slide grooves, and a clamping block is fixedly installed on the inner side of the limit plate, and the clamping block is embedded in the slide groove.

[0010] A further preferred solution is that a plurality of anti-sliding blocks are fixedly installed on the inner side of the clamping block, and the anti-sliding blocks and the clamping block are embedded in the sliding groove, and the anti-sliding blocks are made of anti-slip material.

[0011] A further preferred solution is that a spring is installed on the inner side of the limit plate, and the other end of the spring is connected to the outer side of the shell.

[0012] A further preferred solution is that a rebounder is arranged inside the spring, and two ends of the rebounder are flush with two ends of the spring.

[0013] A further preferred solution is that a connecting rod is threadedly connected to the outer side of the shell, and a cross bar is fixedly installed at one end of the connecting rod. A limiting groove is opened on the inner side of the limiting plate, and the cross bar and the connecting rod are both embedded in the limiting groove. The inner diameter of the limiting groove is consistent with the diameter of the cross bar.

[0014] Beneficial effects:

[0015] 1. By providing a slide rail, the slide rail is used to limit the position of the housing, thereby limiting the position of the microphone. When the position of the microphone needs to be moved and adjusted, the position of the housing is directly moved so that the housing moves on the slide rail, thereby adjusting the position of the microphone, so that the microphone can be adjusted according to the user's personal habits, thereby effectively improving the flexibility of the microphone;

[0016] 2. By setting a limit plate, after the microphone position is determined, the card block is embedded in the card slot for limiting. When disassembly is required, the two limit plates are pressed inward with fingers to make the two limit plates move inward. At the same time, one end of the card block is tilted up, and the spring and the rebounder cooperate with each other to prevent the position of the limit plate from being misplaced, making the limit plate more stable when moving. At the same time, the spring and the rebounder support each other when the position of the limit plate is determined relative to the housing, preventing the limit plate from loosening and affecting the use of the microphone inside the housing.

[0017] 3. By providing a connecting rod, when the housing is positioned, one end of the connecting rod is connected to the housing, and the other end of the cross bar is embedded in the inner part of the limiting groove, so as to further fix the distance between the connecting plates and prevent the limiting plate from moving inward, thereby effectively improving the stability of the limiting plate and thus effectively improving the stability of the microphone;

[0018] 4. In summary, this type of invisible canopy microphone limits the outer shell by providing structures such as slide rails and limit plates, thereby limiting the microphone. The card block is embedded in the inside of the slide groove to limit the outer shell. The card block moves inside the slide groove, thereby driving the microphone to move, making the microphone more flexible when in use. The limit plate is limited by the cooperation of a spring and a rebounder, and is further limited by the cooperation of a connecting rod and a cross bar, thereby making the limit plate more stable when in use, further effectively improving the stability of the microphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the shell and slide rail structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the exploded structure of the limit plate and the shell of the utility model.

[0022] Figure 4 It is a schematic diagram of the connection structure between the cross bar and the limiting groove of the utility model.

[0023] Figure 1-4 Middle: 1, tent body; 2, slide rail; 201, support plate; 202, slide groove; 3, shell; 301, limit plate; 302, block; 303, anti-sliding block; 304, spring; 305, rebounder; 306, connecting rod; 307, cross bar; 308, limit groove. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0025] See also Figure 1-4 In an embodiment of the utility model, an invisible canopy microphone comprises: a canopy body 1, a slide rail 2 is arranged inside the canopy body 1, and a shell 3 is nested on the outer surface of the slide rail 2, and limit plates 301 are arranged on both sides of the shell 3, and the microphone is inside the shell 3. When the microphone is installed, the shell 3 is connected to the slide rail 2 by the limit plate 301, and the slide rail 2 is used to limit the shell 3, so as to limit the microphone. There is a track system inside the slide rail 2, and the track system usually reserves a wire groove or a wire hole to connect the power supply and the microphone. One end of the track system usually has a power interface or a power box for connecting the power cord. The user can insert the power cord into the power interface or the power box to supply power to the track system. On the shell 3, there are usually wire contact points or wiring terminals. The user can connect the wire to the shell 3 through the contact points or wiring terminals, and use the shell 3 to transmit electricity to the inside of the microphone, so that the microphone can be powered when it moves. When the position of the microphone needs to be moved and adjusted, the position of the shell 3 is directly moved to adjust, so that the microphone can be adjusted according to the user's personal habits, thereby effectively improving the flexibility of the device;

[0026] In the embodiment of the utility model, the inner part of the tent body 1 is hollow, and a plurality of support plates 201 are arranged on the outer side of the slide rail 2, and the support plates 201 are arc-shaped. Both ends of the support plates 201 are fixed inside the tent body 1, and the support plates 201 are bent outward to contain the slide rail 2 and the outer shell 3 inside, thereby protecting the outer shell 3 and the slide rail 2, and playing a certain buffering role when impacted.

[0027] In the embodiment of the utility model, both ends of the slide rail 2 are provided with a slide groove 202, and a block 302 is fixedly installed on the inner side of the limit plate 301, and the block 302 is embedded in the slide groove 202, wherein a plurality of anti-sliding blocks 303 are fixedly installed on the inner side of the block 302, and the anti-sliding blocks 303 and the block 302 are both embedded in the slide groove 202, and the anti-sliding blocks 303 are made of anti-slip material, and the limit plate 301 is embedded in the slide groove 202 through the block 302 for positioning, and when the block 302 is embedded in the slide groove 202, the anti-sliding block 303 contacts the block 302, thereby further enhancing the friction between the slide groove 202 and the block 302, making the block 302 more stable inside the slide groove 202, thereby effectively improving the stability of the microphone when used.

[0028] In the embodiment of the utility model, springs 304 are installed on the inner sides of the limit plates 301, and the other ends of the springs 304 are connected to the outer sides of the housing 3, wherein rebounders 305 are arranged inside the springs 304, and the two ends of the rebounders 305 are flush with the two ends of the springs 304. When the housing 3 needs to be disassembled, the two limit plates 301 are pressed inwardly with fingers, so that the two limit plates 301 move inwardly, and at the same time, one end of the block 302 is tilted, so that the block 302 is taken out from the inside of the slide groove 202, so that the housing 3 is disassembled, making it more convenient to disassemble the microphone. The spring 304 is limited by the rebounder 305 to prevent the spring 304 from being displaced during use and affecting the use of the device. At the same time, the rebounder 305 can relieve the pressure of the spring 304 and effectively extend the life of the spring 304, thereby making the limit plate 301 more stable during use. In the same way, the block 302 is embedded in the slide groove 202 to fix the position of the shell 3. The spring 304 and the rebounder 305 play a certain supporting role on the two limit plates 301, making the limit plate 301 more stable during use, further improving the stability of the microphone.

[0029] In the embodiment of the utility model, a connecting rod 306 is threadedly connected to the outer side of the shell 3, and a cross bar 307 is fixedly installed at one end of the connecting rod 306. A limiting groove 308 is provided on the inner side of the limiting plate 301, and the cross bar 307 and the connecting rod 306 are both embedded in the limiting groove 308. The inner diameter of the limiting groove 308 is consistent with the diameter of the cross bar 307. When the shell 3 is positioned on the surface of the slide rail 2, the connecting rod 306 and the cross bar 307 are embedded in the limiting groove 308, and the other end of the connecting rod 306 is connected to the shell 3 by a thread, so that the connecting rod 306 rotates and drives the cross bar 307 to rotate. When the position of the connecting rod 306 is fixed, the cross bar 307 and the limiting groove 308 are perpendicular to each other, so that the position of the connecting rod 306 and the cross bar 307 is fixed, and the distance between the limiting plate 301 is further fixed, so as to prevent the limiting plate 301 from loosening and affecting the use of the microphone inside the shell 3, so that the microphone is more stable when in use.

[0030] Working principle: the shell 3 is connected to the slide rail 2 by the limit plate 301, and the slide rail 2 is used to limit the shell 3, thereby limiting the position of the microphone. When the position of the microphone needs to be moved and adjusted, the position of the shell 3 is directly moved for adjustment, so that the microphone can be adjusted according to the user's personal habits, thereby effectively improving the flexibility of the device. When the microphone needs to be disassembled and repaired, the two limit plates 301 are pressed inwardly with fingers to make the two limit plates 301 move inwardly. At the same time, one end of the block 302 is tilted so that the block 302 is taken out from the inside of the slide groove 202, thereby disassembling the shell 3, making the microphone more convenient to disassemble. In the same way, pressure is applied to the limit plate 301 to embed the block 302 into the inside of the slide groove 202 to fix the position of the shell 3. The spring 304 and the rebounder 305 play a certain supporting role on the two limit plates 301, making the limit plates 301 more stable when in use, further improving the stability of the microphone.

Claims

1. An invisible ceiling microphone, comprising: The tent body (1) is characterized in that a slide rail (2) is arranged inside the tent body (1), and a shell (3) is nested on the outer surface of the slide rail (2), and limit plates (301) are arranged on both sides of the shell (3).

2. The invisible ceiling microphone according to claim 1, characterized in that: The inner part of the tent body (1) is hollow, and a plurality of support plates (201) are arranged on the outer side of the slide rail (2). The support plates (201) are arc-shaped, and both ends of the support plates (201) are fixed inside the tent body (1).

3. The invisible ceiling microphone according to claim 1, characterized in that: Both ends of the slide rail (2) are provided with slide grooves (202), and a clamping block (302) is fixedly installed on the inner side of the limiting plate (301), and the clamping block (302) is embedded in the slide groove (202).

4. The invisible ceiling microphone according to claim 3, characterized in that: A plurality of anti-sliding blocks (303) are fixedly mounted on the inner side of the clamping block (302), and the anti-sliding blocks (303) and the clamping block (302) are both embedded in the inside of the slide groove (202), and the anti-sliding blocks (303) are made of anti-slip material.

5. The invisible ceiling microphone according to claim 1, characterized in that: A spring (304) is installed on the inner side of the limiting plate (301), and the other end of the spring (304) is connected to the outer side of the housing (3).

6. The invisible ceiling microphone according to claim 5, characterized in that: A rebounder (305) is arranged inside the spring (304), and two ends of the rebounder (305) are flush with two ends of the spring (304).

7. The invisible ceiling microphone according to claim 1, characterized in that: The outer side of the housing (3) is threadedly connected to a connecting rod (306), and a cross bar (307) is fixedly mounted on one end of the connecting rod (306). A limiting groove (308) is provided on the inner side of the limiting plate (301), and the cross bar (307) and the connecting rod (306) are both embedded in the limiting groove (308). The inner diameter of the limiting groove (308) is consistent with the diameter of the cross bar (307).

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