CN219478116U

CN219478116U - Earphone structure and earphone

Info

Publication number: CN219478116U
Application number: CN202320561326.6U
Authority: CN
Inventors: 陈斌
Original assignee: Suzhou Jushengyuan Electronics Co ltd
Current assignee: Suzhou Jushengyuan Electronics Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-08-04
Anticipated expiration: 2033-03-21

Abstract

The utility model relates to an earphone structure and an earphone. Mainly comprises a front shell, a rear shell, a sealing sleeve and a moving iron sounding unit. The front shell comprises a rear end connecting part, a middle part and a front end protruding part, a first accommodating groove and a second accommodating groove are formed in the rear end connecting part, a sound guide channel is formed in the middle part, an expansion piece positioning groove is formed in the front end protruding part, an inner cavity is formed in the rear shell, an annular positioning part is arranged at the front end of the rear shell, a positioning part of the rear shell is located in the second accommodating groove, the sealing sleeve comprises a main body part, a transition part and a front end part, a sound guide pipe positioning hole is formed in the front end part, a shell positioning groove is formed in the main body part, the moving iron sound generating unit is embedded into the shell positioning groove, and the front end of the sound guide pipe of the moving iron sound generating unit extends out of the sound guide channel through the sound guide pipe positioning hole. The utility model has the advantages of simple structure and convenient assembly.

Description

Earphone structure and earphone

Technical Field

The utility model relates to the field of manufacturing of moving iron type earphones, in particular to an earphone structure.

Background

Whether wired or wireless bluetooth headsets, and the currently popular TWS headsets (TWS is _True _Wireless _Stereo ) In the process of using miniature moving iron sound units, acoustic engineers oftenThe novel moving-iron earphone structure is developed depending on the related design concept of the moving-coil sounding unit in the past, namely when the moving-iron sounding unit is used in the earphone, the design of the earphone structure often refers to the structural design of the moving-coil sounding unit, so that the earphone structure adopting the moving-iron sounding unit is complex, the sound guide channel in the shell is complex, and the design cost is high. For example, fig. 1 is an existing moving-coil earphone, and the existing moving-coil earphone often refers to such a design concept of a housing and a sound guide channel, so that the internal cavity structure of the housing and the corresponding auxiliary structure of the existing moving-coil earphone are complex, and the assembly requirement is high and the cost is high.

Disclosure of Invention

Based on this, a headset structure is provided. The earphone structure has the advantages of simple integral structure, convenient assembly, low cost and convenient further development.

An earphone structure comprises a front shell, a rear shell, a sealing sleeve and a moving iron sounding unit,

the front shell comprises a rear end connecting part, a middle part and a front end protruding part, a first accommodating groove and a second accommodating groove are arranged in the rear end connecting part, the first accommodating groove is positioned at the front side of the second accommodating groove, a linear sound guide channel is arranged in the middle part and positioned at the front side of the first accommodating groove, an expansion piece positioning groove is arranged in the front end protruding part,

the rear shell is provided with an inner cavity, the front end of the rear shell is provided with an annular positioning part, a plurality of groove bodies are arranged on the positioning part at intervals along the circumferential direction, the axial length of the rear shell is greater than that of the front shell, the positioning part of the rear shell is positioned in a second accommodating groove,

the sealing sleeve comprises a main body part, a transition part and a front end part, wherein the diameter of the front end part is smaller than that of the main body part, the front end part is provided with a sound guide tube positioning hole, the main body part is provided with a shell positioning groove,

the transition part and the front end part of the sealing sleeve extend out from the positioning part of the rear shell, are positioned in the first accommodating groove and are abutted against the inner wall of the first accommodating groove, the rear end of the sealing sleeve is abutted against the stop shoulder arranged in the rear shell,

the moving iron sounding unit is embedded into the shell positioning groove, and the front end of the sound guide tube of the moving iron sounding unit extends out of the sound guide tube positioning hole into the sound guide channel.

This application will be used for fixed corresponding structure of moving iron sound production unit to simplify, just can fix moving iron sound production unit through the cooperation of preceding shell, seal cover and backshell. And through the simplified design of the specific structures of the front shell, the sealing sleeve and the rear shell, the assembly process is very simple as long as the sealing of the moving iron sound generating unit and the sealing sleeve and the sealing of the front shell and the rear shell are paid attention to. Because the seal cover is made of materials such as silica gel, good sealing effect can be realized. The sealing of the front shell and the rear shell can be realized by glue, etc. And this application will move in the sound guide pipe of indisputable sound production unit directly stretches into the sound guide passageway, has simplified the passageway of sound conduction, and the sound guide passageway is sharp shape, and the structure is simplified, when specific design, through the diameter size and the length of change sound guide passageway, can obtain the audio of different effects. For example, a thin and long sound guide channel may bring more acoustic resonance, and thus the output of high-frequency sound may be improved.

In one embodiment, the positioning part is provided with a plurality of arc-shaped protruding strips, and an arc-shaped groove matched with the arc-shaped protruding strips is formed in the second accommodating groove of the front shell.

In one embodiment, the inner cavity of the rear shell is provided with an inclined plane, the inclined plane is located at the rear side of the blocking shoulder, a first type of mounting hole is formed in the inclined plane, the rear shell further comprises a connecting wire fixing head, one end of the connecting wire fixing head is provided with a clamping structure, the end portion of the clamping structure is located in the inner cavity of the rear shell and matched with the first type of mounting hole, the clamping structure is in clamping connection with the rear shell, the end portion of the clamping structure is further used for clamping the connecting wire, and the connecting wire fixing head is provided with a connecting wire fixing through hole.

In one embodiment, the device further comprises an earplug, wherein the earplug is clamped with the front shell.

In one embodiment, the tail end of the rear shell is provided with a plurality of tail through holes.

In one embodiment, the outer wall of the rear end of the rear shell is provided with a tail groove body.

In one embodiment, a cloth net is arranged in the expansion piece positioning groove.

An earphone comprises an earphone structure and an earplug, wherein the earplug is connected with a front-end protruding part and a middle part of a front shell.

Drawings

Fig. 1 is a structural diagram of a moving coil type earphone of a conventional design.

Fig. 2 is an exploded view of an earphone structure according to an embodiment of the present application. The parts of the earphone structure in the figure are basically arranged in a straight line, the structural design is simpler, a complicated sound guide channel is not required to be designed, and the assembly relationship among the structures is simple.

Fig. 3 is an assembly diagram of an earphone structure of an embodiment of the present application.

Fig. 4 is a schematic view of a front case of an earphone structure according to an embodiment of the present application.

Fig. 5 is a schematic diagram of another view of the front case of the earphone structure according to the embodiment of the present application.

Fig. 6 is a schematic view of an earplug of an earphone structure of an embodiment of the application.

Fig. 7 is a schematic view of a sealing sleeve of an earphone structure according to an embodiment of the present application.

Fig. 8 is a schematic view of the internal structure of the rear case of the earphone structure according to the embodiment of the present application.

Fig. 9 is a schematic view of an external structure of a rear case of the earphone structure of the embodiment of the present application.

Wherein:

110. a front shell; 111. a rear end connection portion; 112. an intermediate portion; 113. a front end boss; 114. an expansion piece positioning groove; 115. a sound guide channel;

120. a rear case; 121. a positioning part; 122. a tank body; 123. arc-shaped protruding strips; 124. a tail groove body; 125. tail through holes; 126. a first type of mounting hole; 127. an inclined surface; 128. a shoulder; 129. an inner cavity; 130. sealing sleeve; 131. a main body portion; 132. a transition section; 133. a front end portion; 134. a housing positioning groove; 135. a sound guide tube positioning hole; 136. a first receiving groove; 137. a second accommodating groove; 140. a moving iron sounding unit;

152. a net is laid; 160. an earplug; 161. a clamping hole; 170. a connecting wire;

180. a connecting wire fixing head; 181. an elastic clamping block; 182. a support part; 183. a lower end portion.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 2 and 3, an embodiment of the present application provides an earphone structure including a front case 110, a rear case 120, a sealing case 130, and a moving iron sound generating unit 140. The application mainly optimizes the structures of the front shell 110, the rear shell 120 and the sealing sleeve 130. The moving iron sounding unit 140 is of an existing design, and here, the moving iron sounding unit 140 of an existing design is also adopted.

Specifically, the front case 110 includes a rear end connection portion 111, an intermediate portion 112, and a front end protrusion portion 113. The rear end connecting portion 111 is formed integrally in a cylindrical shape, and the intermediate portion 112 is formed integrally in a cylindrical shape. The rear end connecting portion 111 is provided therein with a first receiving groove 136 and a second receiving groove 137, and the first receiving groove 136 is located on the front side of the second receiving groove 137. A linear sound guide channel 115 is disposed in the middle portion 112, that is, the sound guide channel 115 is integrally formed into a cylindrical cavity, the sound guide channel 115 is located at the front side of the first accommodating groove 136, and an expansion member positioning groove 114 is disposed in the front end protruding portion 113.

The rear housing 120 is provided with an inner cavity 129, the front end of the rear housing 120 is provided with an annular positioning portion 121, a plurality of groove bodies 122 are circumferentially arranged on the positioning portion 121 at intervals, the axial length of the rear housing 120 is greater than that of the front housing 110, and the positioning portion 121 of the rear housing 120 is located in the second accommodating groove 137.

The gland 130 includes a body portion 131, a transition portion 132, and a nose portion 133. The main body 131 is cylindrical in shape, and the tip 133 is also cylindrical in shape. The diameter of the front end part 133 is smaller than that of the main body part 131, the front end part 133 is provided with a sound guide tube positioning hole 135, the main body part 131 is provided with a shell positioning groove 134, the first accommodating groove 136 is in a step shape, the transition part 132 and the front end part 133 of the sealing sleeve 130 extend out from the positioning part 121 of the rear shell 120 and are positioned in the first accommodating groove 136 and are abutted against the inner wall of the first accommodating groove 136, and the rear end of the sealing sleeve 130 is abutted against the shoulder 128 arranged in the rear shell 120. The above-mentioned casing positioning groove 134 is similar to the moving iron sounding unit 140 in overall shape, and is used for clamping the moving iron sounding unit 140, that is, the moving iron sounding unit 140 is embedded in the casing positioning groove 134, and the front end of the sound guide tube of the moving iron sounding unit 140 extends out of the sound guide channel 115 from the sound guide tube positioning hole 135.

In the assembly process, the moving iron sounding unit 140 is embedded into the shell positioning groove 134 of the sealing sleeve 130, the sealing sleeve 130 is connected with the front shell 110, and then the front shell 110 is connected with the rear shell 120. The assembly is completed without an accurate auxiliary jig, and the whole assembly process is simple, quick and convenient.

Further, because the earphone has smaller structure, the used moving iron sounding unit 140 has smaller structure, and belongs to the miniature moving iron sounding unit 140, the sound emitted by the moving iron sounding unit 140 is crisp, and the cloth net 152 can be added at the front end for people dislike metal tooth sound to play a damping role, so as to suppress high-pitched sound. That is, in one embodiment, the extension positioning slot 114 has a cloth net 152 disposed therein. The cloth 152 may be snapped into the extender detent 114 and secured by glue. In the research and development process of engineering personnel, only two points need to be noted, firstly, the design of the sound guide channel 115 can adjust the output sound pressure, and in general, the thin and long sound guide channel 115 can bring more sound wave resonance, so that the high-frequency sound is improved; the second is the choice of the cloth net 152, and the cloth net 152 with higher damping has better effect on suppressing high tones.

In one embodiment, the positioning portion 121 is provided with a plurality of arc-shaped protruding strips 123, and the second receiving groove 137 of the front case 110 is provided with an arc-shaped groove for matching with the arc-shaped protruding strips 123.

This arrangement is advantageous in achieving a good sealing connection between the positioning portion 121 and the second accommodation groove 137.

In one embodiment, as shown in fig. 2 and 8, the inner cavity 129 of the rear housing 120 is provided with an inclined surface 127, the inclined surface 127 is located at the rear side of the shoulder 128, a first type of mounting hole 126 is provided on the inclined surface 127, the connector further comprises a connector fixing head 180, one end of the connector fixing head 180 is provided with a clamping structure, the end of the clamping structure is located in the inner cavity 129 of the rear housing 120 and is matched with the first type of mounting hole 126, the clamping structure is clamped with the rear housing 120, the end of the clamping structure is further used for clamping a connector, the connector fixing head 180 is provided with a connector fixing through hole, and the connector can pass through the connector fixing head 180 through the connector fixing through hole.

The above-mentioned clamping structure includes a plurality of elasticity joint piece 181 that the tip set up along circumference and the supporting part 182 that links to each other with each elasticity joint piece 181, and the supporting part 182 below is the lower tip 183 of connecting wire fixed head 180, and the diameter of supporting part 182 is less than lower tip 183, leaves certain clearance between two adjacent elasticity joint piece 181, can fix corresponding connecting wire 170 through a plurality of elasticity joint piece 181, and each elasticity joint piece 181 encloses into the structure and is greater than first type mounting hole 126. The connection line 170 is used to connect with the moving iron sounding unit 140.

In one embodiment, an earplug 160 is further included, the earplug 160 being snapped into the front shell 110. The earplug 160 is constructed identically to the existing earplug 160.

In one embodiment, the rear end of the rear housing 120 is provided with a plurality of tail through holes 125. The arrangement of the tail through holes can play a role in pressure relief to improve low-frequency output.

On the basis of the above, the outer wall of the rear end of the rear case 120 is provided with a tail groove 124. The tail through hole 125 penetrates the tail groove 124.

The embodiment of the application further provides an earphone, which comprises the earphone structure and an earplug 160, wherein the earplug 160 is clamped with the front end protruding portion 113 and the middle portion 112 of the front shell 110. Specifically, a clamping hole 161 is disposed in the earplug 160, and the clamping hole 161 is clamped with the front protruding portion 113 and the middle portion 112 of the front shell 110.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An earphone structure is characterized in that,

comprises a front shell, a rear shell, a sealing sleeve and a moving iron sounding unit,

2. The earphone structure of claim 1, wherein the positioning portion is provided with a plurality of arc-shaped protruding bars, and the second receiving groove of the front case is provided with an arc-shaped groove for being matched with the arc-shaped protruding bars.

3. The earphone structure of claim 1, wherein the inner cavity of the rear case is provided with an inclined surface, the inclined surface is located at the rear side of the shoulder, a first type of mounting hole is formed in the inclined surface, the earphone structure further comprises a connecting wire fixing head, one end of the connecting wire fixing head is provided with a clamping structure, the end portion of the clamping structure is located in the inner cavity of the rear case and matched with the first type of mounting hole, the clamping structure is clamped with the rear case, the end portion of the clamping structure is further used for clamping a connecting wire, and the connecting wire fixing head is provided with a connecting wire fixing through hole.

4. The earphone structure of claim 1, further comprising an earplug, the earplug being snapped into engagement with the front shell.

5. The earphone structure of claim 1, wherein the rear end of the rear case is provided with a plurality of rear through holes.

6. The earphone structure of claim 1, wherein the outer wall of the rear end of the rear case is provided with a tail groove.

7. The earphone structure according to any one of claims 1 to 6, wherein a cloth net is provided in the expansion piece positioning groove.

8. An earphone comprising the earphone structure of any one of claims 1 to 7, further comprising an earplug, the earplug being connected to the front boss portion and the intermediate portion of the front shell.