CN204968110U - Listening test fixture - Google Patents
Listening test fixture Download PDFInfo
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- CN204968110U CN204968110U CN201520621026.8U CN201520621026U CN204968110U CN 204968110 U CN204968110 U CN 204968110U CN 201520621026 U CN201520621026 U CN 201520621026U CN 204968110 U CN204968110 U CN 204968110U
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- artificial ear
- blimp
- cylinder
- pressure head
- fixed
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Abstract
The utility model provides a listening test fixture, including artificial ear, cylinder, fix sound -proof housing on the cylinder, fix at the inside pressure head of sound -proof housing, wherein, the artificial ear passes through the bottom plate to be fixed on the artificial ear base, and the artificial ear is corresponding with the position of pressure head, the cylinder sets up on the bottom plate, and the sound -proof housing that is located on the cylinder removes and seals the artificial ear in the space of sound -proof housing with bottom formation along the cylinder, the trial production article that await measuring are fixed a position in the artificial ear through the pressure head. Utilize above -mentioned utility model, it is low, efficient to treat test product accurate positioning, easy operation, test cost.
Description
Technical field
The utility model relates to acoustic-electric technical field, more specifically, relates to a kind of listen test frock.
Background technology
In field of acoustics, the important step that loudspeaker listen test detects as product quality ensures that earpiece audio curve meets a kind of check system of relevant national standard and customer requirement, and strict listen test is that isolate interference from outside needs to carry out in enclosure space.
The listen test of existing loudspeaker or similar products mainly completes in test box.But conventional test box volume is comparatively large, takes up room more; In addition, carry out listen test complex operation by test box to loudspeaker, testing efficiency is low, and cost is high.
Therefore, need a kind of listen test frock badly, the test mass of product can be ensured while reducing testing complex degree, improve testing efficiency.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of listen test frock, to solve the problems such as current loudspeaker test operation is complicated, testing cost is high.
The listen test frock that the utility model provides, comprises artificial ear, cylinder, the blimp be fixed on cylinder, is fixed on the pressure head of blimp inside; Wherein, artificial ear is fixed on artificial ear base by base plate, and artificial ear is corresponding with the position of pressure head; Cylinder is arranged on base plate, and the blimp be positioned on cylinder moves along cylinder and artificial ear is sealed in the space that blimp and base plate formed; Product to be tested is positioned in artificial ear by pressure head.
In addition, preferred structure is, also comprises the guide pillar being fixed on blimp inside, and wherein, guide pillar is fixedly connected with blimp by fore-set; Guide pillar inside is provided with spring, and pressure head slides up and down in guide pillar.
In addition, preferred structure is, to be sticked noise reduction film at blimp inwall, be sticked in the bottom of blimp sealing ring; Blimp is tightly connected by sealing ring and base plate.
In addition, preferred structure is, noise reduction film is acoustical cotton, mineral wool, sound deadening coating or nonwoven fabrics.
In addition, preferred structure is, artificial ear is at least two, and product to be tested is placed in artificial ear, and is fixed by pressure head.
In addition, preferred structure is, artificial ear base is threaded connection with between base plate, key pin is connected or weld and be fixed.
In addition, preferred structure is, also comprises control system and display unit; Wherein, control system, treats test products for control cylinder and carries out listen test; Display unit, for presenting the test data result visualization of product to be tested.
In addition, preferred structure is, artificial ear is provided with the earpiece consistent with shape of product to be tested; Product to be tested is fixed in earpiece.
From technical scheme above, listen test frock of the present utility model, blimp motion is controlled by cylinder, and form confined space with base plate, product orientation to be tested is made to carry out listen test in this confined space, can under the prerequisite meeting listen test effect, improve testing efficiency, reduce testing cost, simple to operate, workable.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and understand more comprehensively along with to of the present utility model, other object of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is the listen test tool structure schematic diagram according to the utility model embodiment;
Fig. 2 is the listen test frock concrete structure schematic diagram according to the utility model embodiment;
Fig. 3 is the test structure schematic diagram of the listen test frock according to the utility model embodiment.
Reference numeral wherein comprises: blimp 1, fore-set 2, guide pillar 3, pressure head 4, cylinder 5, earpiece 6, artificial ear 7, base plate 8, artificial ear base 9.
Label identical in all of the figs indicates similar or corresponding feature or function.
Embodiment
Special test case need be used for above-mentioned existing loudspeaker test, test operation is complicated, high in cost of production problem, listen test frock of the present utility model is by arranging the blimp that can slide above base plate, product to be tested and artificial ear are sealed in the sound deadening space of blimp and base plate formation, to carry out the listen test of product, structure is simple, easy to operate, testing efficiency is high, cost is low.
In the following description, be structure and the fixed form thereof of the inner pressure head of clear displaying blimp, the blimp only display section structure in accompanying drawing 2 and accompanying drawing 3, complete blimp structure is illustrated by accompanying drawing 1.
For describing listen test frock of the present utility model in detail, below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
Fig. 1 shows the structure of the listen test frock according to the utility model embodiment; Fig. 2 shows the concrete structure of the listen test frock according to the utility model embodiment.
As Fig. 1 and Fig. 2 jointly shown in, the listen test frock of the utility model embodiment, comprises artificial ear 7, cylinder 5, the blimp 1 be fixed on cylinder 5, is fixed on the pressure head 4 of blimp 1 inside; Wherein, artificial ear 7 is fixed on base plate 8, blimp 1 is driven to move down by cylinder 5, blimp 1 and base plate 8 can be made to form a seal cavity, namely cylinder 5 is arranged on base plate 8, and the blimp 1 be positioned on cylinder 5 moves along cylinder 5 and artificial ear 7 is sealed in the space that blimp 1 formed with base plate 8.Base plate 8 is fixed on artificial ear base 9, and artificial ear 7 is corresponding up and down with the position of pressure head 4, and product to be tested to be placed in artificial ear 7 and to compress location by pressure head 4.
Particularly, rectangle base plate 8 is provided with two artificial ears 7, the earpiece 6 suitable with product design to be tested is provided with in artificial ear 7, product to be tested is fixed in earpiece 6, 5, cylinder is arranged on base plate 8, and be positioned at the side of artificial ear 7, the blimp 1 be fixed on cylinder 5 is positioned at directly over artificial ear 7, the pressure head 4 corresponding respectively with two artificial ears 7 is provided with in blimp 1 inside, after startup cylinder 5 works, blimp 1 glides along cylinder 5 and covers on outside two artificial ears 7, now, pressure head 4 is by spacing for product to be tested inner at artificial ear 7, then, namely treat test products by artificial ear and dependence test software and carry out listen test.
For the damage preventing pressure head 4 excessive compression product to be tested from causing product, in an embodiment of the present utility model, pressure head 4 is arranged in guide pillar 3, guide pillar 3 is fixedly connected with blimp 1 by fore-set 2, wherein, guide pillar 3 is parallel with the sidewall of blimp 1 with pressure head 4 and be positioned at directly over artificial ear 7; The spring of buffering pressure head 4 pressure is provided with in guide pillar 3 inside, after blimp 1 to move downward along cylinder 5 and is tightly connected with base plate 8, by spring, pressure head 4 is slided up and down in guide pillar 3, guarantee that product to be tested is under not impaired prerequisite, fixedly positioning in artificial ear 7 by pressure head 4, to carry out high-quality listen test.In addition, for avoiding pressure head 4 to scratch product appearance to be tested, the neonychiums such as rubber blanket, plastic pad, silicagel pad or pulvinus can be set below pressure head 4, or adopt the material monolithic such as plastic cement or silica gel to make pressure head 4.
For improving the measuring accuracy of the utility model listen test frock, avoid ambient noise to enter blimp 1 inner, in another embodiment of the present utility model, to be sticked noise reduction film at the inwall of blimp 1, be sticked in the bottom of blimp 1 sealing ring; By noise reduction film for test provides a silent environment, eliminate outside noise, sealing ring then makes blimp 1 and base plate 8 combine closely, and prevents from there is gap therebetween and the precision that affects listen test.Wherein, noise reduction film can be set to acoustical cotton, mineral wool, sound deadening coating or nonwoven fabrics etc., and be attached to blimp inwall by the material this type of with noise reduction or sound absorption function, for listen test provides good test environment, cost is low, and precision is high.
Particularly, Fig. 3 shows the test structure of the listen test frock according to the utility model embodiment.
As shown in Figure 3, the listen test frock of the utility model embodiment is utilized to treat test products when carrying out listen test, drive blimp 1 to move by cylinder 5 and be buckled in outside artificial ear, artificial ear and external environment are isolated, product to be tested is then placed in corresponding artificial ear and carries out listen test.Wherein, the artificial ear be arranged on base plate 8 is at least two, and the number of product to be tested is consistent with the number of artificial ear, specifically can arrange according to testing requirement.
Be specifically described with the embodiment of two artificial ears exemplarily.Wherein, rectangular base plate 8 be threaded connection, key pin is connected or the connected mode such as welding is fixed on artificial ear base 9, base plate 8 is provided with two artificial ears, artificial ear inside is provided with earpiece consistent with the profile of product to be tested, product to be tested is placed in corresponding earpiece; Cylinder 5 is arranged on base plate 8, cylinder 5 slidably connects cuboid blimp 1, is fixed with fore-set 2 in blimp 1 inside, below fore-set 2, be provided with the guide pillar 3 that two positions are corresponding with artificial ear respectively, pressure head 4 is limited in guide pillar 3 by spring, and can along guide pillar 3 telescopic moving.
Product to be tested is placed on after in artificial ear, startup cylinder 5 controls blimp 1 and moves down and form confined space with base plate 8, product to be tested and artificial ear to be all housed in blimp 1 and to be isolated from the outside, product to be tested is limited in earpiece by the pressure head 4 in blimp 1, namely treats by artificial ear the listen test that test products carries out being correlated with.
For improving automaticity and the measuring accuracy of listen test, in another embodiment of the present utility model, listen test frock also comprises control system (not shown) and display unit (not shown), control system is connected with cylinder and artificial ear, after the product to be tested placed being detected, control system can be opened by control cylinder automatically, and drive blimp to move down jointly to form the test space with base plate, then treat test products by artificial ear and carry out dependence test.Test result after test or test data are produced or tester by the visual front of presenting to of display unit, avoid the continuous production of front defective products, reduce unnecessary loss.
In addition, it should be noted that, the cylinder of the utility model listen test frock can select accurate slide unit cylinder, and the slide unit that blimp is fixed on cylinder moves along slide unit.Also common cylinder and track can be used to realize, and wherein, track is vertically fixed on floor, blimp is then stuck in vertical rail, and under the effect of cylinder, blimp slides up and down along guide rail, listen test object of the present utility model can be realized equally, repeat no more herein.
Can be found out by above-mentioned execution mode, the listen test frock that the utility model provides, earphone is fixed in earpiece, starting switch control cylinder drives blimp and pressure head to move downward, and then product to be tested compressed and tests with outside noise is isolated, the mode efficiency comparing use test case can improve about 20%, simple to operate, cost is low.
The listen test frock according to the utility model proposes is described in an illustrative manner above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the listen test frock that above-mentioned the utility model is proposed, various improvement can also be made on the basis not departing from the utility model content.Therefore, protection range of the present utility model should be determined by the content of appending claims.
Claims (8)
1. a listen test frock, is characterized in that, comprises artificial ear, cylinder, the blimp be fixed on described cylinder, is fixed on the pressure head of described blimp inside; Wherein,
Described artificial ear is fixed on artificial ear base by base plate, and described artificial ear is corresponding with the position of described pressure head;
Described cylinder is arranged on described base plate, and the blimp be positioned on described cylinder moves along described cylinder and described artificial ear is sealed in the space that described blimp and described base plate formed;
Product to be tested is positioned in described artificial ear by described pressure head.
2. listen test frock as claimed in claim 1, is characterized in that, also comprise the guide pillar being fixed on described blimp inside, wherein,
Described guide pillar is fixedly connected with described blimp by fore-set;
Described guide pillar inside is provided with spring, and described pressure head slides up and down in described guide pillar.
3. listen test frock as claimed in claim 1, is characterized in that,
To be sticked noise reduction film at described blimp inwall, be sticked in the bottom of described blimp sealing ring;
Described blimp is tightly connected by described sealing ring and described base plate.
4. listen test frock as claimed in claim 3, is characterized in that,
Described noise reduction film is acoustical cotton, mineral wool, sound deadening coating or nonwoven fabrics.
5. listen test frock as claimed in claim 1, is characterized in that,
Described artificial ear is at least two, and described product to be tested is placed in described artificial ear, and is fixed by described pressure head.
6. listen test frock as claimed in claim 1, is characterized in that,
Described artificial ear base is threaded connection with between described base plate, key pin is connected or weld and be fixed.
7. listen test frock as claimed in claim 1, is characterized in that, also comprise control system and display unit; Wherein,
Described control system, treats test products carry out listen test for controlling described cylinder;
Described display unit, for presenting the test data result visualization of product to be tested.
8. listen test frock as claimed in claim 1, is characterized in that,
Described artificial ear is provided with the earpiece consistent with described shape of product to be tested;
Described product to be tested is fixed in described earpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520621026.8U CN204968110U (en) | 2015-08-17 | 2015-08-17 | Listening test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520621026.8U CN204968110U (en) | 2015-08-17 | 2015-08-17 | Listening test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204968110U true CN204968110U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520621026.8U Active CN204968110U (en) | 2015-08-17 | 2015-08-17 | Listening test fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN204968110U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107249164A (en) * | 2017-05-02 | 2017-10-13 | 歌尔股份有限公司 | Audition clamp device for electroacoustic transducer |
| CN116007742A (en) * | 2022-11-30 | 2023-04-25 | 中国南方电网有限责任公司超高压输电公司广州局 | Transformer abnormal sound detection method, device, equipment and storage medium |
-
2015
- 2015-08-17 CN CN201520621026.8U patent/CN204968110U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107249164A (en) * | 2017-05-02 | 2017-10-13 | 歌尔股份有限公司 | Audition clamp device for electroacoustic transducer |
| CN107249164B (en) * | 2017-05-02 | 2019-07-23 | 歌尔股份有限公司 | Audition clamp device for electroacoustic transducer |
| CN116007742A (en) * | 2022-11-30 | 2023-04-25 | 中国南方电网有限责任公司超高压输电公司广州局 | Transformer abnormal sound detection method, device, equipment and storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |