Headphone fixing structure including headphone electroacoustic test fixture

Abstract

The present application relates to an earphone fixing structure, comprising a first shell and a second shell, wherein the first shell and the second shell are provided with corresponding concave spaces, and a sound outlet hole is provided at the bottom of the groove of the first shell, so that the fixing structure has: the concave space of the first shell and the concave space of the second shell are combined with each other to form an accommodating space to clamp the earphone to be tested, and the sound outlet hole of the earphone to be tested is directly opposite to the sound outlet hole of the first shell, the split upper shell and the lower shell can be combined with each other to fix the earphone, and the pressure device combined on the upper shell and the lower shell can further play a positioning and tightening effect on the test earphone, so that the earphone to be tested is accurately fixed, and its sound outlet hole can fit the installation groove more closely to achieve the test effect.

Description

Technical Field

[0001] The present application relates to the technical field of audio testing technology, and in particular to an earphone electroacoustic testing fixture including an earphone fixing structure. Background Art

[0002] In the current related technologies, with the rapid development and continuous improvement of the intelligence of electronic products such as mobile phones and tablets, the related supporting equipment or products (for example, headphones) are also constantly being updated to intelligence. In the headphone industry, headphone acoustic testing is an important part of product quality inspection and a verification method to ensure that the acoustics of the headphone meet customer standards. Especially with the emergence of TWS (True Wireless Stereo) Bluetooth headphones, the requirements for headphone sound quality are getting higher and higher, requiring the consistency of the frequency response curves of the left and right headphones to enhance the user's auditory experience.

[0003] Existing test systems usually place the earphones in a test fixture and connect them to the artificial ears to obtain the test curves. Figure 1 As shown, the test fixture in the prior art includes a main body 1, a mounting slot 2 is provided on the main body 1, and a sound outlet 3 is provided at the bottom of the mounting slot 2. The earphone to be tested is placed in the mounting slot 2 so that the sound outlet of the earphone is aligned with the sound outlet 3 of the fixture, and then the test is performed. The problem with the test fixture in the related art is that: there may be a gap between the earphone and the fixture in the area to be tested, which may cause air deflation or leakage during the test; secondly, although the shape of the mounting slot 2 has been adapted to the earphone as much as possible, due to the wide variety of earphones and the human differences in the installation work, the earphone may not be placed in the correct position, which will also affect the test results; furthermore, due to the development of earphones, it is necessary to test the acoustic holes at specific positions, while the non-acoustic hole positions need to be wrapped and closed, so the traditional single-sided installation can no longer meet the testing requirements of the earphone; in addition, with the passage of time, the accuracy and consistency of the test results will become worse and worse due to the wear of the flexible fixture.

[0004] Therefore, it is urgent to develop a new headphone electroacoustic test fixture structure to solve the above problems. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the present application provides an earphone fixing structure, including a first shell and a second shell, the first shell and the second shell are provided with corresponding concave spaces, and the bottom of the groove of the first shell is provided with a sound outlet hole, so that the earphone fixing structure has: the concave space of the first shell and the concave space of the second shell are combined with each other to form an accommodating space to clamp the earphone to be tested, and the sound outlet hole of the earphone to be tested is directly opposite to the sound outlet hole of the first shell.

[0006] Preferably, a receiving groove with an ear hole-like structure is provided around the sound outlet, and the receiving groove is used for placing the ear inlet end of the earphone to be tested.

[0007] Preferably, the storage groove is made of a hard material, and a contact portion made of a flexible material is provided at the bottom of the storage groove for receiving the earphone to be tested to reduce a gap between the storage groove and the sound hole of the earphone to be tested.

[0008] Preferably, a first clamping member is disposed on the first shell, and a second clamping member is disposed on the second shell, and the first clamping member and the second clamping member are used to clamp and fix the earphone to be tested.

[0009] Preferably, a replaceable abutting boss for pressing and fixing the earphone to be tested is provided in the inner concave space of the first shell and / or the second shell.

[0010] Preferably, a plurality of strip-shaped / hole-shaped sound-adjusting parts are provided on the first shell and / or the second shell for connecting the outside with the accommodating space.

[0011] Preferably, a positioning and pressing device is further included to enable the first shell and the second shell to be oppositely combined with each other to press the earphone to be tested.

[0012] Preferably, the positioning and pressing device includes a plurality of first magnetic components and second magnetic components that can attract each other and are arranged on the first shell and the second shell, so that the earphone fixing structure has: when the first shell and the second shell are close to each other, the first magnetic component and its corresponding second magnetic component are directly combined to press the earphone to be tested.

[0013] Preferably, a plurality of elastic return members are provided on the first shell and / or the second shell to buffer the impact force when the first shell and the second shell are combined.

[0014] An earphone electroacoustic test fixture comprises a simulated ear and any one of the above earphone fixing structures, wherein the simulated ear is connected to the sound outlet hole of the earphone fixing structure.

[0015] It should be understood that the above general description and the detailed description below are only exemplary and explanatory and cannot limit the present application. The scheme for implementing the present application is through an earphone fixing structure, including a first shell and a second shell, the first shell and the second shell are provided with corresponding concave spaces, and the bottom of the groove of the first shell is provided with a sound outlet hole, so that the fixing structure has: the concave space of the first shell and the concave space of the second shell are combined with each other to form an accommodating space to clamp the earphone to be tested, and the sound outlet hole of the earphone to be tested is directly opposite to the sound outlet hole of the first shell, the split upper shell and the lower shell can be combined with each other to fix the earphone, and the pressure device combined on the upper shell and the lower shell can further play a positioning and tightening effect on the test earphone, so that the earphone to be tested is accurately fixed, and its sound outlet hole can fit the installation slot more closely to achieve the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0017] Figure 1 This is a schematic diagram of the structure of a headphone test fixture in an existing solution;

[0018] Figure 2 Schematic diagram of the earphone fixing structure and artificial ear shown in the embodiment of the present application (assembled);

[0019] Figure 3 Schematic diagram of the earphone fixing structure and the artificial ear shown in the embodiment of the present application (disassembled);

[0020] Figure 4 Schematic diagram of the first housing and the artificial ear of the earphone fixing structure shown in the embodiment of the present application (assembled);

[0021] Figure 5 is a schematic diagram of a second shell of an earphone fixing structure shown in an embodiment of the present application;

[0022] Figure 6 It is a schematic cross-sectional view of the earphone fixing structure shown in an embodiment of the present application.

[0023] The meanings of the marks in the figure are as follows:

[0024]

[0025] DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0027] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0028] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] As shown in the attached picture Figure 2-6As shown, an earphone fixing structure 100 includes a first shell 110 and a second shell 120, and corresponding concave spaces are provided on the first shell 110 and the second shell 120, that is, a first concave space 131 is provided on the first shell 110, and a second concave space 132 is provided on the second shell 120, and the first concave space 131 and the second concave space 132 form an accommodating space 130, and a sound outlet hole 111 is opened at the bottom of the groove of the first shell 110, so that the earphone fixing structure 100 has: the concave space of the first shell 110 and the concave space of the second shell 120 are combined with each other to form an accommodating space 130 to clamp the earphone 300 to be tested, and the sound outlet hole 311 of the earphone 300 to be tested is directly opposite to the sound outlet hole 111 of the first shell 110. The first shell 110 has a storage groove 112 with an ear hole structure around the sound outlet 111. The storage groove 112 is used to place the ear inlet 310 of the earphone 300 to be tested. The other side of the storage groove 112 is provided with a simulated ear installation groove 114 that can be connected to the simulated ear. The second shell 120 is provided with an abutment boss 121, which can be combined to provide support for different types of earphones and be pressed against the sound outlet 111. Optionally, the abutment boss 121 can be installed and replaced independently, or integrally formed on the first shell 110 or the second shell 120. Figure 2-6 As shown, the first shell 110 and the second shell 120 are rectangular. Those skilled in the art will appreciate that the shapes of the first shell 110 and the second shell 120 can be selected as needed, such as square, circular, triangular or other shapes.

[0032] In a preferred embodiment, the storage groove 112 is made of a hard material, and a contact portion 115 made of a flexible material is provided at the bottom of the storage groove 112. Optionally, the storage groove 112 can be a groove structure integrally formed on the first shell 110, and plastic, metal or other hard materials can be selected; the contact portion 115 can be selected from silicone, and those skilled in the art can use any material with a certain elastic force to make a Figure 6 The elastic ring shown is used to accommodate the earphone 300 to be tested so as to reduce the gap between the storage slot 112 and the ear-in-ear end 310 of the earphone 300 to be tested, thereby avoiding inaccurate positioning due to manual installation, which may cause leakage and other problems due to poor sealing between the earphone 300 to be tested and the earphone fixing structure 100, thereby affecting the effect and efficiency of the test. The shape of the storage slot 112 is consistent with the shape of the ear-in-ear end 310 of the earphone 300 to be tested. Since the storage slot is made of hard material or metal material, its hardness is generally greater than the hardness of the material used for the earphone itself. Under the action of gravity, the earphone 300 to be tested conforms to the structure of the storage slot 112 to be close to the sound outlet 111, so there is almost no wear, which reduces the frequency of mold replacement and usage cost, and does not affect the use of the fixture.

[0033] In a preferred embodiment, a first clamping member 113 is provided on the first shell 110, and a second clamping member 122 is provided on the second shell 120, and the first clamping member 113 and the second clamping member 122 are used to clamp and fix the earphone 300 to be tested. The installation reliability and accuracy of the earphone 300 to be tested are further ensured. The first clamping member 113 and the second clamping member 122 can optionally be elastic materials. A more preferred embodiment is that the first shell 110 and the second shell 120 are made of elastic materials as a whole. The present invention does not limit the elastic material itself, and those skilled in the art can use any material with a certain elastic force. For example, in some embodiments, the elastic material is an elastic silicone material. The first clamping member 113 and the second clamping member 122 can be as shown in the accompanying drawings Figure 6 As shown, the staggered arrangement can achieve the effect of tilting, pressing down or horizontally fixing the earphone, so that the earphone is fixed more securely.

[0034] In a preferred embodiment, a plurality of strip-shaped / hole-shaped sound-adjusting portions 140 are provided on the first shell 110 and / or the second shell 120, and the sound-adjusting portions 140 are used to connect the outside with the accommodating space 130, thereby corresponding to the acoustic through holes provided on the earphone 300 to be tested, and can be used to adjust the air pressure.

[0035] In a preferred embodiment, a positioning and pressing device 150 is further included to make the first shell 110 and the second shell 120 face each other and press the earphone 300 to be tested. The positioning and pressing device 150 can be implemented by hinges, buckles, threads, magnets, elastic glue, etc.

[0036] In a preferred embodiment, the positioning and pressing device 150 includes a plurality of first magnetic members 151 and second magnetic members 152 that can be attracted to each other and are disposed on the first shell 110 and the second shell 120, so that the earphone fixing structure 100 has: when the first shell 110 and the second shell 120 are close to each other, the first magnetic members 151 and the corresponding second magnetic members 152 are directly combined to press the earphone 300 to be tested. Figure 4 and Figure 5 As shown, the first magnetic attraction member 151 and the second magnetic attraction member 152 can be installed at the edge positions of the first shell 110 and the second shell 120. The magnetic attraction member can be a low-magnetic magnet. Optionally, an electromagnet can be used for controlled adsorption, and then the locking and positioning of the fixed structure can be achieved in conjunction with software or hardware switches. After the earphone is placed, the first shell 110 and the second shell 120 can be adsorbed to each other under their guidance, so that there is no need to precisely adjust the placement of the earphone. It is only necessary to place the earphone 300 to be tested into the accommodating cavity, and the positioning and fixing can be completed by the positioning and pressure device 150.

[0037] In a preferred embodiment, a plurality of elastic return members 160 are disposed on the first shell 110 and / or the second shell 120 to buffer the impact force when the first shell 110 and the second shell 120 are combined. Figure 4 As shown, those skilled in the art can understand that the elastic return member 160 can be made of rebound glue or buffer glue, or a mechanical structure with a damping effect, to achieve a buffering effect and avoid excessive destructive force on the first shell 110 and the second shell 120 due to external force or the existing positioning pressure device 150.

[0038] As shown in the attached picture Figure 3 As shown, the earphone fixing structure 100 can be used to form an earphone electroacoustic test fixture, including a simulated ear 200 and any of the above earphone fixing structures 100 , wherein the simulated ear 200 is connected to the sound outlet 111 of the earphone fixing structure 100 .

[0039] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An earphone fixing structure, characterized in that: The invention comprises a first shell and a second shell, wherein the first shell and the second shell are provided with corresponding concave spaces, and a sound outlet hole is provided at the bottom of the groove of the first shell, so that the earphone fixing structure has: the concave space of the first shell and the concave space of the second shell are combined with each other to form an accommodating space for clamping the earphone to be tested, and the sound outlet hole of the earphone to be tested is directly opposite to the sound outlet hole of the first shell; A storage groove with an ear hole-like structure is provided around the sound outlet, and the storage groove is used to place the ear inlet of the earphone to be tested; The storage slot is made of a hard material, and a contact portion made of a flexible material is provided at the bottom of the storage slot for receiving the earphone to be tested to reduce the gap between the storage slot and the sound hole of the earphone to be tested; A replaceable abutting boss for pressing and fixing the earphone to be tested is provided in the inner concave space of the first shell and / or the second shell.

2. The earphone fixing structure according to claim 1, characterized in that: The first shell is provided with a first clamping member, and the second shell is provided with a second clamping member, and the first clamping member and the second clamping member are used to clamp and fix the earphone to be tested.

3. The earphone fixing structure according to claim 1, characterized in that: The first shell and / or the second shell are provided with a plurality of strip-shaped / hole-shaped sound-adjusting parts for connecting the outside with the accommodating space.

4. The earphone fixing structure according to claim 1, characterized in that: It also includes a positioning and pressing device, so that the first shell and the second shell are combined with each other to press the earphone to be tested.

5. The earphone fixing structure according to claim 4, characterized in that: The positioning and pressing device includes a plurality of first magnetic components and second magnetic components that can attract each other and are arranged on the first shell and the second shell, so that the earphone fixing structure has: when the first shell and the second shell are close to each other, the first magnetic components and their corresponding second magnetic components are directly combined to press the earphone to be tested.

6. The earphone fixing structure according to claim 1, characterized in that: A plurality of elastic reset members are disposed on the first shell and / or the second shell to buffer the impact force when the first shell and the second shell are combined.

7. An earphone electroacoustic test fixture, characterized by: The invention comprises a simulated ear and the earphone fixing structure according to any one of claims 1 to 6, wherein the simulated ear is connected to the sound outlet hole of the earphone fixing structure.

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