Silicon microphone waterproof protection assembly convenient for moving production line

Abstract

The utility model provides a silicon microphone waterproof protection assembly convenient for moving a production line, which relates to the technical field of silicon microphone waterproof, and comprises a silicon microphone shell, a packaging substrate with a shielding layer is arranged at the bottom of the silicon microphone shell, a waterproof piece aiming at a sound inlet hole of the silicon microphone shell is arranged outside the silicon microphone shell, and the waterproof piece comprises a waterproof film. The waterproof membrane covers the outer portion of the silicon microphone shell, the waterproof membrane is detachably assembled on the outer portion of the silicon microphone shell through the assembly part, the waterproof membrane is made of TPU (thermoplastic polyurethane elastomer rubber), the waterproof membrane is waterproof, sound-permeable and breathable, and meanwhile the waterproof membrane and the silicon microphone can be conveniently disassembled and assembled on a production line and in subsequent modification through the assembly part.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon microphone waterproofing, in particular to a silicon microphone waterproofing protection component which is convenient for production line movement. Background Art

[0002] As the three-proof (dustproof, waterproof, and drop-proof) performance of smart terminals has become more and more important, the waterproof performance of smart terminals has always been the focus of attention of manufacturers and users.

[0003] Nowadays, in the process of waterproofing the microphone of mobile devices, EPTFE (expanded polytetrafluoroethylene) is used to make a film and attached to the silicon microphone for waterproofing. Although it solves the problem of silicon microphone waterproofing, the direct covering method is not convenient for assembly on the production line, and the assembly defective products are high. For this reason, the inventor has found through research that TPU (thermoplastic polyurethane elastomer rubber) has excellent flexibility, good impact resistance, good wear resistance, good waterproofness, and is recyclable and has little impact on the environment. The waterproof film made of this material has a good waterproof effect. At the same time, due to its good wear resistance, it is also convenient for assembly on the production line. Summary of the invention

[0004] In order to solve the above problems, the utility model proposes a silicon microphone waterproof protection component which is convenient for moving on the production line. The component is made of a thin film of TPU (thermoplastic polyurethane elastomer rubber) and has the characteristics of waterproof, sound-permeable and breathable. At the same time, the assembly parts can be easily disassembled and assembled with the silicon microphone on the production line and for subsequent modifications, so as to more accurately solve the problems raised by the background technology.

[0005] The utility model realizes a silicon microphone waterproof protection component that is easy to move on the production line through the following technical scheme, including a silicon microphone shell, a packaging substrate with a shielding layer is provided at the bottom of the silicon microphone shell, and a waterproof member for the sound inlet of the silicon microphone shell is provided outside the silicon microphone shell;

[0006] The waterproof part includes a waterproof membrane, which covers the outside of the silicon microphone shell;

[0007] The waterproof membrane is detachably mounted on the outside of the silicon microphone housing through an assembly part.

[0008] Furthermore, the waterproof membrane is made of thermoplastic polyurethane elastomer rubber.

[0009] Furthermore, the assembly includes a frame, the middle of the frame is hollowed out, and the size of the hollowed out portion is larger than the size of the silicon microphone shell, that is, the frame can be sleeved on the outside of the silicon microphone shell through the hollowed out portion.

[0010] Furthermore, the edges of the waterproof membrane are fixedly connected to the frame;

[0011] The packaging substrate is symmetrically provided with mounting posts, which are located on one side of the silicon microphone housing. At the same time, a mounting hole is opened on the frame. The mounting hole and the mounting post are adapted to each other, that is, the mounting post can be inserted into the mounting hole, and the mounting post and the mounting hole are interference fit.

[0012] Furthermore, a marking ring groove is provided on the circumferential surface of the top of the mounting column.

[0013] Furthermore, a waterproof rubber strip is provided at the bottom edge of the frame, and a step is formed between the waterproof rubber strip and the edge of the frame. The size of the waterproof rubber strip is larger than the size of the packaging substrate.

[0014] Furthermore, the thickness of the waterproof adhesive strip is also thicker than the thickness of the packaging substrate.

[0015] Furthermore, clamping plates are fixedly arranged on both sides of the frame, the clamping plates are arranged flush with the side edges of the frame, and a protruding structure is also arranged on the side faces of the clamping plates.

[0016] Furthermore, the assembly includes a frame, an inner peripheral edge is arranged at the edge of the hollow part of the frame, and an outer fixing frame is also arranged. The size of the outer fixing frame is larger than the inner peripheral edge, and the outer fixing frame can be sleeved outside the inner peripheral edge.

[0017] Beneficial effects of the utility model:

[0018] The waterproof membrane is made of TPU (thermoplastic polyurethane elastomer rubber). The TPU film has excellent flexibility, good impact resistance, good wear resistance, good waterproofness, sound permeability and breathability, and is recyclable and has little impact on the environment. At the same time, the soft TPU material can effectively fit the curved surface without blistering and can be used for a long time.

[0019] At the same time, the assembly parts make it convenient to assemble or disassemble the waterproof membrane in the production line and subsequent electronic equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall view of a silicon microphone waterproof protection component that is easy to move on a production line according to the utility model;

[0021] Figure 2 This is a schematic diagram of the separation of the waterproof membrane and the silicon microphone shell of a silicon microphone waterproof protection component that is convenient for production line movement according to the utility model;

[0022] Figure 3 This is a schematic diagram of a silicon microphone shell of a silicon microphone waterproof protection assembly that is easy to move on a production line according to the utility model;

[0023] Figure 4 This is a schematic diagram of the inner periphery and outer fixing frame of a silicon microphone waterproof protection component that is convenient for production line movement according to the utility model;

[0024] Figure 5 It is a schematic diagram of the assembly thickness of the inner periphery and the outer fixing frame of a silicon microphone waterproof protection component that is convenient for production line movement according to the utility model;

[0025] Figure 6 This is a schematic diagram of the bottom frame of a silicon microphone waterproof protection assembly that is convenient for production line movement according to the utility model;

[0026] Figure 7 For the utility model Figure 1 A magnified schematic diagram of center A.

[0027] The reference numerals in the drawings are as follows: 1. waterproof membrane; 101. frame; 102. waterproof rubber strip; 103. mounting hole; 2. silicon microphone housing; 201. packaging substrate; 202. mounting column; 203. marking ring groove; 204. sound inlet hole; 3. inner edge; 301. outer fixing frame; 4. clamping plate; 401. protruding structure. DETAILED DESCRIPTION

[0028] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0029] Please refer to Figure 1-Figure 7 The utility model proposes a silicon microphone waterproof protection component which is convenient for moving the production line, including a silicon microphone shell 2, a packaging substrate 201 with a shielding layer is provided at the bottom of the silicon microphone shell 2, and an RF suppression circuit is provided on the packaging substrate 201, and the silicon microphone shell 2 should also have a front sound cavity, a rear sound cavity, black glue, etc. to constitute the silicon microphone, and pins are provided at the bottom of the packaging substrate 201. At the same time, the silicon microphone shell 2 is made of metal material, and a sound inlet hole 204 which penetrates the inside of the shell is opened at the top of the silicon microphone shell 2.

[0030] The outside of the silicon microphone shell 2 is provided with a waterproof component for the sound inlet 204 of the silicon microphone shell 2. The waterproof component mainly includes a waterproof membrane 1 made of TPU (thermoplastic polyurethane elastomer rubber). The waterproof membrane 1 covers the outside of the silicon microphone shell 2. At the same time, the waterproof membrane 1 can also be disassembled from the silicon microphone shell 2. The TPU film has excellent flexibility, good impact resistance, good wear resistance, good waterproofness, sound permeability and breathability, and can be recycled and has little impact on the environment. At the same time, the soft TPU material can effectively fit the curved surface without bubbling, and can be used for a long time. After actual measurement, the TPU film has the same functions and advantages as the EPTFE film in acoustic applications, and the production cost is low.

[0031] Embodiment 1:

[0032] In this embodiment, the middle of the frame 101 is hollowed out, and the size of the hollowed-out portion is larger than the size of the silicon microphone housing 2, that is, the frame 101 can be put on the outside of the silicon microphone housing 2 through the hollowed-out portion, and the edges of the waterproof membrane 1 are fixedly connected to the frame 101. In a specific method, an adhesive method is adopted. By putting the frame 101 on the silicon microphone housing 2, the waterproof membrane 1 covers the top and edges of the entire silicon microphone housing 2. In this way, the sound inlet 204 can have a better waterproof effect.

[0033] In order to further facilitate the assembly of the waterproof parts and the silicon microphone housing 2 in the production line, mounting posts 202 are symmetrically arranged on the packaging substrate 201, and the mounting posts 202 are located on one side of the silicon microphone housing 2. At the same time, a mounting hole 103 is opened on the frame 101, and the mounting hole 103 and the mounting post 202 are adapted to each other, that is, the mounting post 202 can be inserted into the mounting hole 103, and the mounting post 202 and the mounting hole 103 are interference fit, to ensure that the frame 101 will not loosen after installation.

[0034] At the same time, in order to facilitate the subsequent inspection station in the production line to detect whether the waterproof parts and the silicon microphone shell 2 are installed properly, a marking ring groove 203 is set on the top circumferential surface of the installation column 202. In the specific implementation, the marking ring groove 203 is colored to facilitate subsequent visual inspection.

[0035] During installation, the marking ring groove 203 of the mounting column 202 needs to pass through the mounting hole 103. At this time, it is determined that the installation is suitable. When the marking ring groove 203 of the mounting column 202 passes through the mounting hole 103, the bottom surface of the frame 101 and the packaging substrate 201 are in a fit state.

[0036] like Figure 6 As shown, in order to further improve the waterproof effect of the waterproof component on the silicon microphone, a waterproof rubber strip 102 is provided at the bottom edge of the frame 101, and the waterproof rubber strip 102 forms a step with the edge of the frame 101. The size of the waterproof rubber strip 102 is larger than the size of the packaging substrate 201, and the thickness of the waterproof rubber strip 102 is also thicker than the thickness of the packaging substrate 201. During assembly, the packaging substrate 201 can be embedded in the waterproof rubber strip 102. In a specific implementation, the packaging substrate 201 is fixedly installed with the circuit board, and the waterproof component cover is set on the silicon microphone housing 2. The waterproof rubber strip 102 will be close to the circuit board, thereby further achieving a waterproof effect.

[0037] In order to facilitate the movement and assembly of waterproof parts in the production line, clamping plates 4 are fixedly set on both sides of the frame 101. The clamping plates 4 are set flush with the side edges of the frame 101. This structure is mainly for the convenience of the clamping equipment in the production line to clamp, transport and assemble the waterproof parts through the clamping plates 4. At the same time, a protruding structure 401 is also provided on the side of the clamping plate 4 to prevent slipping during clamping.

[0038] The waterproof membrane 1 is configured as two layers, the surface layer of the waterproof membrane 1 is a hydrophobic layer, the inner layer is a breathable layer, and the breathable layer is closely attached to the silicon microphone shell 2.

[0039] Embodiment 2:

[0040] like Figure 4 and Figure 5 As shown, the difference from the first embodiment is that an inner peripheral edge 3 is provided at the edge of the hollow part of the frame 101, and an outer fixing frame 301 is also provided. The size of the outer fixing frame 301 is larger than the inner peripheral edge 3, so that the outer fixing frame 301 can be tightly sleeved on the outside of the inner peripheral edge 3. In a specific implementation, the waterproof membrane 1 is covered on the outside of the silicon microphone shell 2, and the bottom of the waterproof membrane 1 covers the outside of the inner peripheral edge 3. Then the outer fixing frame 301 is sleeved on the inner peripheral edge 3 to fix the bottom of the waterproof membrane 1 on the inner peripheral edge 3. This method is mainly convenient for the subsequent removal and replacement of the waterproof membrane 1. When removing the outer fixing frame 301, the waterproof membrane 1 can be replaced.

[0041] Of course, the present utility model may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present utility model.

Claims

1. A waterproof protection component for silicon microphones that is convenient for production line movement, comprising a silicon microphone housing, a packaging substrate with a shielding layer provided at the bottom of the silicon microphone housing, characterized in that: The outer surface of the silicon microphone shell is provided with a waterproof member for the sound inlet of the silicon microphone shell; The waterproof part includes a waterproof membrane, which covers the outside of the silicon microphone shell; The waterproof membrane is detachably mounted on the outside of the silicon microphone housing through an assembly part.

2. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 1, characterized in that: The waterproof membrane is made of thermoplastic polyurethane elastomer rubber.

3. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 2, characterized in that: The assembly includes a frame, the middle of the frame is hollowed out, and the size of the hollowed out portion is larger than the size of the silicon microphone shell, that is, the frame can be sleeved on the outside of the silicon microphone shell through the hollowed out portion.

4. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 3, characterized in that: The edges of the waterproof membrane are fixedly connected to the frame; The packaging substrate is symmetrically provided with mounting posts, which are located on one side of the silicon microphone housing. At the same time, a mounting hole is opened on the frame. The mounting hole and the mounting post are adapted to each other, that is, the mounting post can be inserted into the mounting hole, and the mounting post and the mounting hole are interference fit.

5. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 4, characterized in that: A marking ring groove is arranged on the circumferential surface of the top of the mounting column.

6. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 5, characterized in that: A waterproof rubber strip is provided at the bottom edge of the frame, and a step is formed between the waterproof rubber strip and the edge of the frame. The size of the waterproof rubber strip is larger than that of the packaging substrate.

7. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 6, characterized in that: The thickness of the waterproof adhesive strip is also thicker than the thickness of the packaging substrate.

8. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 7, characterized in that: Clamping plates are fixedly arranged on both sides of the frame, the clamping plates are arranged flush with the side edges of the frame, and a convex structure is also arranged on the side faces of the clamping plates.

9. The waterproof protection assembly for silicon microphones that is convenient for production line movement according to claim 3, characterized in that: The assembly part comprises a frame, an inner peripheral edge is arranged at the edge of the hollow part of the frame, and an outer fixing frame is also arranged. The size of the outer fixing frame is larger than the inner peripheral edge, and the outer fixing frame can be sleeved outside the inner peripheral edge.

Images