Microphone with simplified structure and without integrated design of plastic ring and metal piece

Abstract

The utility model provides a microphone with a simplified structure and without integrated design of a plastic ring and a metal piece, the microphone comprises a PCBA assembly, a metal shell, a nickel-plated copper bowl, a gasket, a diaphragm and a waterproof net, and the PCBA assembly is used for receiving and processing capacitance change signals; the metal shell has the functions of structural support and one pole of the parallel plate capacitor; the nickel-plated copper bowl comprises a bottom plate part, an outer ring part and an insulating layer part, the bottom plate part and the outer ring part are integrally formed, the insulating layer part is laid on the bottom plate part and the outer ring part, and the insulating layer part is used for preventing short circuit between the outer side of the outer ring part and the metal shell; according to the microphone, the nickel ring and the polar plate which are commonly used in the industry are used as an assembly body, processing is carried out in an insulating spraying mode, a plastic ring is removed, the assembly action of the three parts can be saved into one part, the matching precision is high, the principle design of a parallel-plate capacitor is reserved, the number of the parts is reduced, and the cost is reduced. And the development requirements of the conservation-minded society are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic device technical field, concretely relates to a simplified structure's microphone head not using plastic ring, metal piece integration design. BACKGROUND

[0002] Traditional microphone head structure usually consists of eight independent components, including plastic ring, metal ring, polar plate, gasket etc. Its assembly process is complex, needs multiple processes, leading to high material cost, low labor efficiency. In the prior art, plastic ring is mainly used to isolate metal ring and polar plate to prevent short circuit, but it has the following problems: 1. Large number of components: the split design of plastic ring, metal ring, polar plate etc. leads to complicated assembly steps and low yield; 2. High cost: plastic ring material and multiple component processing increase production cost; 3. Insufficient stability: split components are prone to cause unstable capacitance signal due to assembly error.

[0003] Therefore, there is an urgent need for a microphone head design scheme with simplified structure, low cost and efficient assembly. SUMMARY

[0004] The utility model discloses a kind of simplified structure's microphone head not using plastic ring, metal piece integration design, including PCBA component, metal shell, nickel-plated copper bowl, gasket, diaphragm and waterproof net, the PCBA component is used to receive and handle capacitance variation signal;The metal shell has the function of structure support and parallel-plate condenser one pole;The nickel-plated copper bowl includes bottom plate part, outer ring part and insulating layer part, the bottom plate part and outer ring part are integrally formed, the insulating layer part is laid on bottom plate part and outer ring part, the insulating layer part is used to prevent the outside of outer ring part and metal shell short circuit, several through holes are set on the bottom plate part.

[0005] As a preferred scheme: the PCBA component adopts FR4 epoxy resin plate, and circuit connecting wire and electrode are designed on the FR4 epoxy resin plate.

[0006] As a preferred scheme: FET, capacitor and resistor are pasted on the FR4 epoxy resin plate, and the circuit connecting wire, electrode, FET, capacitor and resistor constitute circuit, to realize signal output function.

[0007] As a preferred scheme: the metal shell and nickel-plated copper bowl constitute parallel-plate condenser, receive capacitance variation signal, and pass through metal ring to be transmitted to chip in PCBA component to carry out signal monitoring.

[0008] As a preferred scheme: chip, capacitor and resistor are pasted on the FR4 epoxy resin plate, and the circuit connecting wire, electrode, chip, capacitor and resistor constitute circuit, to realize signal output function.

[0009] As a preferred solution: the insulating layer part is epoxy resin or polyurethane material.

[0010] Due to the adoption of the above technical scheme, compared with the prior art, the utility model has the advantages of:

[0011] 1. The microphone of the present application uses the nickel ring and the polar plate commonly used in the industry as an assembly, and uses the insulation spraying method for processing, removes the plastic ring, and saves the assembly action of three components to one component, with high precision, which not only retains the principle design of the parallel plate capacitor, but also reduces the number of components, meeting the requirements of the development of a conservation-oriented society.

[0012] 2. The present application reduces the material and labor costs of the product and effectively improves the process operation efficiency.

[0013] The utility model will be further described below in combination with the drawings and specific embodiments. DRAWINGS

[0014] ATTACHMENT Figure 1 is the structural schematic diagram of the utility model.

[0015] ATTACHMENT Figure 2 is the nickel-plated copper bowl structure schematic diagram of the utility model.

[0016] ATTACHMENT Figure 3 is the A prescription in the attachment Figure 2 enlarged schematic diagram. SPECIFIC EMBODIMENTS

[0017] Example 1: as shown in the attachment Figure 1 to the attachment Figure 3 , a simplified structure microphone without plastic ring and metal integrated design, including PCBA assembly 1, metal shell 2, nickel-plated copper bowl 3, gasket 4, diaphragm 5 and waterproof net 6, the PCBA assembly 1 is used for receiving and processing capacitance change signal; the metal shell 2 has the functions of structural support and parallel plate capacitor one pole; the nickel-plated copper bowl 3 includes bottom plate part 31, outer ring part 32 and insulating layer part 33, the bottom plate part 31 and the outer ring part 32 are integrally formed, the insulating layer part 33 is laid on the bottom plate part 31 and the outer ring part 32, the insulating layer part 33 is used for preventing the outside of the outer ring part 32 from short-circuiting with the metal shell 2, a plurality of through holes are formed in the bottom plate part 31.

[0018] The PCBA assembly 1 adopts FR4 epoxy resin plate, and the FR4 epoxy resin plate is designed with circuit connection line and electrode.

[0019] The FR4 epoxy resin plate is pasted with FET, capacitor and resistor, and the circuit connection line, electrode, FET, capacitor and resistor constitute a circuit to realize signal output function.

[0020] The metal shell 2 and the nickel-plated copper bowl 3 constitute a parallel-plate capacitor, receive a capacitance change signal, and transmit the signal to a chip in the PCBA assembly 1 through a metal ring for signal monitoring.

[0021] Embodiment 2: as shown in the accompanying Figure 1 to the accompanying Figure 3 A simplified structure of a microphone without plastic ring and metal integrated design, comprising a PCBA assembly 1, a metal shell 2, a nickel-plated copper bowl 3, a gasket 4, a diaphragm 5 and a waterproof net 6, the PCBA assembly 1 is used for receiving and processing a capacitance change signal; the metal shell 2 has the functions of structural support and one pole of a parallel-plate capacitor; the nickel-plated copper bowl 3 comprises a bottom plate part 31, an outer ring part 32 and an insulating layer part 33, the bottom plate part 31 and the outer ring part 32 are integrally formed, the insulating layer part 33 is laid on the bottom plate part 31 and the outer ring part 32, the insulating layer part 33 is used to prevent the outside of the outer ring part 32 from short-circuiting with the metal shell 2, and a plurality of through holes are formed on the bottom plate part 31.

[0022] The PCBA assembly 1 adopts an FR4 epoxy resin board, and the FR4 epoxy resin board is designed with circuit connecting lines and electrodes.

[0023] The FR4 epoxy resin board is pasted with a chip, a capacitor and a resistor, and the circuit connecting lines, the electrodes, the chip, the capacitor and the resistor constitute a circuit to realize a signal output function.

[0024] The metal shell 2 and the nickel-plated copper bowl 3 constitute a parallel-plate capacitor, receive a capacitance change signal, and transmit the signal to a chip in the PCBA assembly 1 through a metal ring for signal monitoring.

[0025] It should be particularly noted that the FR4 epoxy resin board, the circuit connecting lines, the electrodes, the FET and the chip, the capacitor and the resistor in the present application are all prior art, and their structures and working principles will not be described herein.

Claims

1. A simplified microphone structure that does not employ an integrated design of plastic rings and metal parts, characterized in that: It includes PCBA assembly, metal shell, nickel-plated copper bowl, gasket, diaphragm and waterproof net, the PCBA assembly is used for receiving and processing capacitance change signal;The metal shell has the function of structural support and parallel plate capacitor one pole;The nickel-plated copper bowl includes bottom plate part, outer ring part and insulation layer part, the bottom plate part and outer ring part are integrally formed, the insulation layer part is laid on the bottom plate part and outer ring part, the insulation layer part is used for preventing the outside of outer ring part from short circuiting with metal shell, a plurality of through holes are formed on the bottom plate part.

2. The microphone according to claim 1, characterized in that: The PCBA assembly adopts FR4 epoxy resin plate, and the FR4 epoxy resin plate is designed with circuit connecting wires and electrodes.

3. The microphone according to claim 2, characterized in that: The FR4 epoxy resin plate is attached with FET, capacitor and resistor, and the circuit connecting wires, electrodes, FET, capacitor and resistor constitute a circuit to realize signal output function.

4. The microphone according to claim 2, characterized in that: The metal shell and nickel-plated copper bowl constitute a parallel plate capacitor to receive capacitance change signal, which is transmitted to the chip in the PCBA assembly through the metal ring for signal monitoring.

5. The microphone according to claim 2, characterized in that: The FR4 epoxy resin plate is attached with chip, capacitor and resistor, and the circuit connecting wires, electrodes, chip, capacitor and resistor constitute a circuit to realize signal output function.

6. The microphone according to claim 2, characterized in that: The insulation layer part is made of epoxy resin or polyurethane material.

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