CN210247009U

CN210247009U - Receiver impedance converter

Info

Publication number: CN210247009U
Application number: CN201921428449.2U
Authority: CN
Inventors: Du Yang; 杨都; Ning Xiao; 肖宁; Hong Liao; 廖宏
Original assignee: Jiangxi Lianchuang Electroacoustics Co ltd
Current assignee: Jiangxi Lianchuang Electroacoustics Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-04-03
Anticipated expiration: 2029-08-29

Abstract

The utility model provides a receiver impedance converter, including the converter body, and locate this internal transformer of converter, the converter body includes plug, socket and connection the plug with the connection casing of socket, the transformer holding in the casing, the transformer includes input and output, the plug with the socket is equipped with two conductive terminal and two signal terminal, the input with the output corresponds the connection respectively the plug with on the socket conductive terminal, the plug with two of socket the signal terminal corresponds the connection. According to the telephone receiver impedance converter, the transformer is arranged, the input end of the transformer is connected with the plug, the output end of the transformer is connected with the socket, a working loop is formed, and after the transformer is converted, the impedance value matched with the use requirement is output, so that the problem that the telephone receiver impedance is not matched to cause abnormal voice communication in the prior art is solved.

Description

Receiver impedance converter

Technical Field

The utility model relates to a receiver technical field, in particular to receiver impedance changer.

Background

A receiver, also called a handset, is an electroacoustic device that converts an audio electrical signal into an acoustic signal without sound leakage. The method is widely applied to communication terminal equipment such as mobile phones, fixed phones and earphones, and the like, and the audio frequency such as voice, music and the like can be played. The impedance characteristics of various receivers are complex, the actual impedance value is frequency dependent, and the receiver impedance is generally said to be the impedance at 1 kHz.

The airplane is usually provided with an earphone or a helmet for voice communication, and a receiver and a transmitter are arranged in the earphone or the helmet. The earphone and the helmet are both provided with a lead, one end of the lead is connected with the earphone or the helmet, the other end of the lead is connected with the airplane through a connecting plug, an audio signal on the airplane is transmitted into the receiver through the lead, the voice of the receiver is played and transmitted into the ear of a person, and the sound picked up by the transmitter is transmitted into the airplane through the lead.

In the prior art, the receiver impedance on the airplane mainly comprises 600 Ω and 20k Ω, and if the receiver impedance of 600 Ω is used on the airplane with the receiver impedance of 20k Ω, normal voice communication cannot be performed, and even the receiver is damaged because of mismatched receiver impedance.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a receiver impedance converter for solve among the prior art receiver impedance mismatch, cause unable normal voice communication's problem.

A receiver impedance converter comprises a converter body and a transformer arranged in the converter body, wherein the converter body comprises a plug, a socket and a connecting shell for connecting the plug and the socket, the transformer is accommodated in the shell and comprises an input end and an output end, the plug and the socket are provided with two conductive terminals and two signal terminals, the input end and the output end are respectively and correspondingly connected with the conductive terminals on the plug and the socket, and the plug is correspondingly connected with the two signal terminals of the socket.

According to the telephone receiver impedance converter, the transformer is arranged, the input end of the transformer is connected with the plug, the output end of the transformer is connected with the socket, a working loop is formed, and after the transformer is converted, the impedance value matched with the use requirement is output, so that the problem that the telephone receiver impedance is not matched to cause abnormal voice communication in the prior art is solved.

Further, a fixed bin is arranged inside the shell, and the fixed bin fixes the transformer.

Further, the input end comprises a positive input end and a negative input end, the positive input end is connected with the positive conductive terminal of the plug, and the negative input end is connected with the negative conductive terminal of the plug.

Further, the output end comprises a positive output end and a negative output end, the positive output end is connected with the positive conductive terminal of the socket, and the negative output end is connected with the negative conductive terminal of the socket.

Furthermore, the two conductive terminals and the two signal terminals are connected in a crossed manner.

Furthermore, the plug and the socket are provided with depressions, the depressions are provided with through holes, and the through holes accommodate the conductive terminals and the signal terminals.

Further, the plug is in threaded connection with the shell, and the shell is in threaded connection with the socket.

Furthermore, the converter body is also provided with two hanging rings, and the two hanging rings are arranged on two opposite sides of the outer side of the shell.

Further, the outer diameter of the middle part of the shell is smaller than the outer diameters of the plug and the socket.

Drawings

Fig. 1 is a sectional view of a receiver impedance transformer according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the transformer conversion impedance according to the embodiment of the present invention;

FIG. 3 is a diagram of a transformer structure according to an embodiment of the present invention;

fig. 4 is a structure diagram of a plug according to an embodiment of the present invention;

FIG. 5 is a diagram of a socket structure according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a converter body according to an embodiment of the present invention.

Description of the main element symbols:

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, an impedance converter of a receiver according to an embodiment of the present invention is shown, including a converter body and a transformer 40 disposed in the converter body, where the converter body includes a plug 10, a socket 20 and a connecting casing 30 connecting the plug 10 and the socket 20, the transformer 40 is accommodated in the casing 30, the transformer 40 includes an input end 41 and an output end 42, the plug 10 and the socket 20 are provided with two conductive terminals 51 and two signal terminals 52, the input end 41 and the output end 42 are respectively connected to the conductive terminals 51 on the plug 10 and the socket 20, and the plug 10 is connected to the two signal terminals 52 of the socket 20.

A fixing chamber (not shown) is disposed inside the housing 30, and the fixing chamber fixes the transformer 40. The input end 41 comprises a positive input end and a negative input end, the positive input end is connected with the positive conductive terminal of the plug 10, and the negative input end is connected with the negative conductive terminal of the plug 10. The output end 42 includes a positive output end and a negative output end, the positive output end is connected to the positive conductive terminal of the socket 20, and the negative output end is connected to the negative conductive terminal of the socket 20. The two conductive terminals 51 and the two signal terminals 52 are connected in a crossed manner. The plug 10 and the socket 20 are provided with depressions, the depressions are provided with through holes 15, and the through holes 15 accommodate the conductive terminals 51 and the signal terminals 52. The plug 10 is connected with the housing 30 by screw threads, and the housing 30 is connected with the socket 20 by screw threads. The converter body is further provided with two suspension loops 60, and the two suspension loops 60 are arranged on two opposite sides of the outer side of the housing 30. The outer diameter of the middle portion of the housing 30 is smaller than the outer diameters of the plug 10 and the socket 20.

As a specific example, the plug 10 includes a four-corner plug socket 11, a receptacle 14, a flat washer 13 and a hexagonal nut 12, the receptacle 14 passes through the four-corner plug socket 11 to be connected and communicated with the through hole 15, the hexagonal nut 12 combines with the flat washer 13 to fix the receptacle 14 on the four-corner plug socket 11, the input terminal 41 is connected with the receptacle 14, and when the conductive terminal 51 enters the receptacle 14 and the signal terminal 52 enters the receptacle 14, the plug 10 is electrically conducted; one end of the four-pin plug base 11 is connected with the shell 30 through threads, and the other end of the four-pin plug base is directly plugged into an airplane socket (not shown).

As a specific example, the socket 20 includes a four-corner socket 21, a socket 14, a flat washer 13 and a hexagonal nut 12, the socket 14 passes through the four-corner socket 21 to communicate with the through hole 15, the hexagonal nut 12 combines with the flat washer 13 to fix the socket 14 on the four-corner socket 21, the output end 42 is connected with the socket 14, when the conductive terminal 51 is inserted into the socket 14 and the signal terminal 52 enters the socket 14, the socket 20 is electrically connected, one end of the four-pin socket 20 is connected with the housing 30 by a screw, and the other end is directly plugged into a wire plug (not shown) of an earphone or a helmet.

As a specific example, the transformer 40 outputs 500 ohms at one end and 15 ohms at the other end, and the 15 ohm end is connected to the socket 20, and the 500 ohm end is connected to the plug 10, so that the receiver of 600 ohms is converted into a receiver of 20 kiloohms. Therefore, impedance matching of the telephone receiver is realized, and normal voice communication is guaranteed.

To sum up, the utility model discloses receiver impedance converter in the middle of the above-mentioned embodiment, through setting up the transformer, the input connecting plug of transformer, output connection socket constitute work circuit, through the transformer conversion back, the impedance value of output matching operation requirement has solved among the prior art receiver impedance and has unmatched, causes the problem of unable normal voice communication.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A receiver impedance converter is characterized by comprising a converter body and a transformer arranged in the converter body, wherein the converter body comprises a plug, a socket and a connecting shell for connecting the plug and the socket, the transformer is accommodated in the shell and comprises an input end and an output end, the plug and the socket are provided with two conductive terminals and two signal terminals, the input end and the output end are respectively and correspondingly connected with the conductive terminals on the plug and the socket, and the plug is correspondingly connected with the two signal terminals of the socket.

2. The receiver impedance transformer of claim 1, wherein a fixed bin is provided inside the housing, and the fixed bin fixes the transformer.

3. The receiver impedance converter of claim 1, wherein the input terminals comprise a positive input terminal and a negative input terminal, the positive input terminal is connected to the positive conductive terminal of the plug, and the negative input terminal is connected to the negative conductive terminal of the plug.

4. The receiver impedance transformer of claim 1, wherein the output terminal comprises a positive output terminal and a negative output terminal, the positive output terminal is connected to the positive conductive terminal of the socket, and the negative output terminal is connected to the negative conductive terminal of the socket.

5. The receiver impedance transformer of claim 1, wherein the two conductive terminals are distributed across the two signal terminal connection lines.

6. The receiver impedance transformer of claim 1, wherein the plug and the socket are provided with depressions, the depressions being provided with through holes, the through holes accommodating the conductive terminals and the signal terminals.

7. The receiver impedance transformer of claim 1, wherein the plug is threadably connected to the housing, and the housing is threadably connected to the socket.

8. The receiver impedance transformer of claim 1, wherein the transformer body is further provided with two loops, the two loops being disposed on opposite sides of the outer side of the housing.

9. The receiver impedance transformer of claim 1, wherein the housing middle portion outer diameter is smaller than the outer diameters of the plug and the socket.