CN210781260U

CN210781260U - Pickup module and microphone

Info

Publication number: CN210781260U
Application number: CN202020014546.3U
Authority: CN
Inventors: 张文榜; 李进
Original assignee: Dongguan Quanyun Electronic Technology Co ltd
Current assignee: Dongguan Quanyun Electronic Technology Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-06-16
Anticipated expiration: 2030-01-03

Abstract

The utility model relates to a pickup module and microphone, pickup module application and microphone, it includes the base, installs XY type pickup portion on the base, including first pickup spare, second pickup spare, be vertical state between first pickup spare, the second pickup spare, both leading flank is relative; the overlapped sound pickup part is arranged with the front side surface thereof right opposite to the included angle end of the XY-type sound pickup part and comprises a third sound pickup piece and a fourth sound pickup piece which are vertically overlapped and fixed; first pickup spare, second pickup spare are electret heart-shaped sound pick-up head, and third pickup spare is the two directional sound pick-up heads of electret, and fourth pickup spare is the all directional sound pick-up head of electret. By adopting the pickup module, an additional external polarized power supply is not needed, so that the cost is reduced; by adopting the X-Y type pickup layout, the defect that the directivity is not obvious when the existing analog mode is used for stereo recording and double-direction recording can be effectively overcome, and the sound field restoration effect of a stereo recording mode is optimized.

Description

Pickup module and microphone

Technical Field

The utility model relates to a microphone, especially its pickup structure.

Background

At present, a multi-directional microphone adopting a capacitance type double-diaphragm sound pick-up head is common in a multi-directional switching mode of the microphone, or a plurality of electret sound pick-up heads are adopted to cooperate with an electronic circuit to operate and simulate various directions, the cost of a power supply required to be configured in the prior art is high, stereo sound pick-up cannot be realized, the sound pick-up effect of the prior art is poor, and a sound field in a stereo mode is not real. There is therefore a need for improved microphone multi-directional pickup techniques.

SUMMERY OF THE UTILITY MODEL

One technical problem solved by one aspect of the present disclosure is to provide a multi-directional sound pickup module and a microphone having the same.

The utility model provides a technical scheme that its technical problem adopted is: the sound pickup module comprises a base for bearing and mounting, the base is provided with a sound pickup module,

the XY type sound pickup part comprises a first sound pickup piece and a second sound pickup piece, wherein the first sound pickup piece and the second sound pickup piece are in a vertical state, and the front side surfaces of the first sound pickup piece and the second sound pickup piece are opposite;

the overlapped sound collecting part is arranged with the front side surface thereof right opposite to the included angle end of the XY-type sound collecting part, and comprises a third sound collecting piece and a fourth sound collecting piece which are vertically overlapped and fixed;

first pickup spare, second pickup spare are electret heart-shaped sound pick-up head, third pickup spare is the two directional sound pick-up heads of electret, fourth pickup spare is the all directional sound pick-up head of electret.

According to the pickup module, the third pickup piece and the fourth pickup piece share the shell.

The microphone is provided with a sound pickup processing unit, the sound pickup processing unit comprises a sound pickup module set, the sound pickup module set is connected to a preamplifier module, the preamplifier module is connected to an analog-to-digital conversion module through a directional switch, and the analog-to-digital conversion module is connected to an earphone amplifier module and a USB interface.

One advantageous effect brought by one aspect of the present disclosure: by adopting the pickup module, an additional external polarized power supply is not needed, so that the cost is reduced; by adopting the X-Y type pickup layout, the defect that the directivity is not obvious when the existing analog mode is used for stereo recording and double-direction recording can be effectively overcome, and the sound field restoration effect of a stereo recording mode is optimized.

Drawings

Certain embodiments of the invention will now be described in detail, by way of example and not limitation, with reference to the figures, in which like reference numerals identify identical or similar parts or features. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.

In the drawings:

fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic top view of the present invention;

fig. 5 is a schematic diagram of pickup according to the present invention;

fig. 6 is a schematic view of the pickup processing unit of the present invention;

the designations in the figures illustrate the following:

100. a base; 1. a first pickup member; 2. a second pickup member; 3. a third pickup; 4. a fourth pickup; 5. pick up the sound hole.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.

All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Referring to fig. 1-5, a pickup module and a pickup effect thereof are shown, the pickup module includes four electret pickup members mounted on a base 100, and the four electret pickup members respectively form an XY-type pickup portion and a stacked pickup portion. XY type pickup portion includes first pickup 1, second pickup 2, and first pickup 1, second pickup 2 both are vertical state, and the leading flank that is provided with pickup hole 5 is relative. The whole front flank (meaning the side that is equipped with sound picking hole 5) of closed assembly sound picking portion is just to XY type sound picking portion contained angle end, and it includes third sound picking piece 3, fourth sound picking piece 4, and third sound picking piece 3, fourth sound picking piece 4 are the stack installation one on top of the other. First pickup 1, second pickup 2 are electret heart-shaped sound pick-up head, and third pickup 3 adopts the two directional sound pick-up heads of electret, and fourth pickup 4 adopts the all directional sound pick-up head of electret.

The mounting of the respective pick-up heads may be achieved by accommodating and fixing the housings, for example by providing a common housing extending longitudinally on the base 100, with cavities therein adapted to the third and fourth pick-

up elements

3, 4, whereby the stacked pick-up sections mounted form a pick-up area with a greater height. As can be seen from the foregoing, the symmetry line of the first sound pickup 1 and the second sound pickup 2 vertically corresponds to the center of the front side of the stacked sound pickup portion, and the two sound heads in the XY-type sound pickup portion have symmetrical and precise sound pickup areas.

Referring to fig. 6, the sound pickup module is configured as a sound pickup processing unit of a microphone, the sound pickup module is connected to the preamplifier module to raise signals of the sound pickup devices to a line level and output the signals to an analog-to-digital conversion module (ADC/DAC), switching of sound pickup modes is realized by controlling a directional switch therebetween, and data of the corresponding sound pickup modes are processed by the digital-to-analog conversion module and then played by an earphone amplifier. The full-directional pickup mode is used for picking up sound by a single full-directional pickup head, the double-directional pickup mode is used for picking up sound by a single double-directional pickup head, the single-directional pickup mode is realized by controlling the pickup angle of the heart-shaped pickup head through a circuit (the principle is the prior art), and the stereo sound pickup mode is used for realizing the stereo recording effect by picking up sound by two heart-shaped pickup heads in XY layout.

The microphone obtains the power supply after pegging graft through the USB interface, compares in capacitanc double-diaphragm pickup mode this scheme and need not outside polarization power, has with low costs, requires low advantage to the save environment. The two sound pick-up heads in XY layout are matched with the two superposed sound pick-up heads, so that the defects that the directivity of the existing simulation pointing mode is not obvious and not accurate are effectively overcome, and the sound field restoration effect of a stereo recording mode is optimized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Pickup module, its characterized in that: the pickup module comprises a base used for bearing and mounting, the base is provided with a pickup module,

2. The pickup module as set forth in claim 1, wherein said third pickup member and said fourth pickup member share a housing.

3. Microphone, has pickup processing unit, its characterized in that: the pickup processing unit comprises the pickup module set according to any one of claims 1-2, the pickup module set is connected to a preamplifier module, the preamplifier module is connected to an analog-to-digital conversion module via a directional switch, and the analog-to-digital conversion module is connected to an earphone amplifier module and a USB interface.