CN109596864A - A kind of test fixture - Google Patents
A kind of test fixture Download PDFInfo
- Publication number
- CN109596864A CN109596864A CN201811552954.8A CN201811552954A CN109596864A CN 109596864 A CN109596864 A CN 109596864A CN 201811552954 A CN201811552954 A CN 201811552954A CN 109596864 A CN109596864 A CN 109596864A
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- Prior art keywords
- antenna
- test
- measured
- test fixture
- feed area
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Telephone Set Structure (AREA)
- Telephone Function (AREA)
Abstract
The present invention relates to radio-frequency antenna production fields, provide a kind of test fixture, comprising: need the bracket of the shell of observation line, for the test circuit board of bearing support for fixing belt；Test circuit board has the metal feed area being electrically connected with test device；Test fixture further include: the electrical connection component being located on metal feed area, electrical connection component are used to be electrically connected with antenna to be measured；Test fixture further include: the male part being electrically connected with metal feed area, male part with antenna to be measured for coupling.When testing the consistency of antenna RF performance, shell with antenna to be measured is fixed on bracket, bracket is placed on test circuit board, antenna to be measured in metal feed area and bracket is electrically connected, the information of antenna is passed into test device, with antenna to be measured coupling can occur for male part, when using for analogue mobile phone, the coupling of the metal devices such as USB, the motor of mobile phone and antenna promotes the accuracy of detection.
Description
Technical field
The present invention relates to radio-frequency antenna production field, in particular to a kind of test fixture.
Background technique
With the rise of nearest a period of time MDA antenna, the uniformity test control problem of MDA antenna becomes in industry
A universal pain spot.MDA antenna is in-mould injection technique, so its production control precision is poor compared with nanometer Shooting Technique very
It is more, it is easier to big tolerance offset occur.And the metal edge frame size strong correlation of the length of antenna and in-mould injection, and it is real
Border, close to metal devices such as USB, SPEAKER, the motors of antenna, can occur coupling with antenna, influence resonance in mobile phone
Frequency, to be had an impact to return loss.When doing the test of RF consistency of performance to the MDA antenna of producing line batch production, only
Can be by the coupling of metal edge frame and antenna, it can not metal devices and the antenna such as the actual USB, SPEAKER of analogue mobile phone, motor
Coupling effect, cause test result inaccurate, be easy to cause defective products to flow into assembling link, cause biggish waste and damage
It loses.
Summary of the invention
The purpose of the present invention is to provide a kind of test fixtures, and the accuracy of antenna is tested after antenna production process, is kept away
Exempt from antenna defective products and flows into assembling link.
In order to solve the above technical problems, embodiments of the present invention provide a kind of test fixture, comprising: be used for fixing belt
Bracket, the test circuit board for carrying the bracket for needing the shell of observation line；The test circuit board has and test
The metal feed area that device is electrically connected；The test fixture further include: the electric connection group being located on the metal feed area
Part, the electrical connection component are used to be electrically connected with the antenna to be measured；The test fixture further include: presented with the metal
The male part that electric area is electrically connected, the male part with the antenna to be measured for coupling.
In terms of existing technologies, when testing the consistency of antenna RF performance, band is needed for embodiment of the present invention
The shell of observation line is fixed on bracket, and bracket is placed on test circuit board, in metal feed area and bracket to observation
Line is electrically connected, and the information of antenna is passed to test device, male part can occur coupling with antenna to be measured, be used for mould
Quasi- mobile phone in use, the metal devices and antenna such as USB, SPEAKER, motor of mobile phone coupling, promote the accuracy of detection.
In addition, the bracket includes: the upper frame and lower frame being oppositely arranged, the antenna to be measured is clamped on described
Between frame body and the lower frame；The male part is located at the lower frame towards the side of the circuit board；Alternatively, the coupling
Component is set on the metal feed area.
In addition, the connection component includes: several metal connecting pieces being located on the metal feed area, the undercarriage
Several through holes are opened up on body, the through hole is identical as the metal connecting piece quantity and position corresponds, each company
Fitting is used to electrically support in the respectively corresponding through hole and the entrance shell with the antenna to be measured.Metal
Connector is connect through through hole with antenna to be measured, and link position is accurate, and through hole protects metal connecting piece not to be damaged.
In addition, each metal connecting piece is that elastic metallic connects needle.It is unjustified that with elastic metallic needle is connect in through hole
When, elastic metallic connection needle is compressed, and will not be damaged.
In addition, the metal feed area includes: conductive part and several headroom portions, quantity and the shell in the headroom portion
The quantity of interior clearance zone is identical and corresponds, and the respectively corresponding headroom is blocked in each headroom portion completely
Area.
In addition, at least provided with a metal connecting piece in each headroom portion, and it is described in each headroom portion
Metal connecting piece passes through feeder line and the conductive part is electrically connected.
In addition, the conductive part is the copper foil being set on the test circuit board.
In addition, the lower frame is rectangle setting, the lower frame has opposite there are two opposite long side and two
Wide side, the male part are arranged close to any one of wide side.Male part be used for simulate close to antenna USB, SPEAKER,
The metal devices such as motor, therefore it is located at the wide side of mobile phone.
In addition, the male part includes: the insulation frame body being located on the lower frame, is located at the coupling to insulate on frame body
Close antenna.
In addition, the insulation frame body and the undercarriage body by integral forming.It is convenient to produce, and the raw material without increasing production
Cost.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the structural schematic diagram of test fixture in first embodiment；
Fig. 2 is the test chart of test fixture in first embodiment；
Fig. 3 is the structural schematic diagram that circuit board is tested in first embodiment；
Fig. 4 is the structural schematic diagram of lower frame in first embodiment.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
In order to make the reader understand this application better, many technical details are proposed.But even if without these technical details and base
In the various changes and modifications of following embodiment, the application technical solution claimed also may be implemented.
The first embodiment of the present invention is related to a kind of test fixtures, and the information for detecting MDA antenna passes to test
Device.
As Figure 1 and Figure 4, the first embodiment of the present invention is related to a kind of test fixtures, for detecting MDA antenna
Information passes to test device.
Test fixture includes: bracket 1, the test circuit board 3 for carrying the bracket 1, is located on test circuit board 3
Electrical connection component, male part 4, bracket 1 need the shell 2 of observation line 21 for fixing belt, and testing has metal on circuit board 3
Feed area 31, metal feed area 31 are connect with test device, and metal feed area 31 is for passing to the information of antenna 21 to be measured
Test device, male part 4 for being coupled with antenna 21 to be measured, make by the coupling of analogue mobile phone metal edge frame and antenna 21 to be measured
With test device judges the consistency of antenna 21 to be measured, and the setting of male part 4 simulates USB, SPEAKER in mobile phone, motor etc.
The coupling of metal device and antenna 21 to be measured, improves the accuracy of test, avoids just finding the performance of antenna not in installation
It is good, it results in greater loss.
As shown in Figure 2 and Figure 4, test circuit board 3 is connect by being electrically connected part with the antenna to be measured 21 in bracket 1, this
In embodiment, being electrically connected part is that elastic metallic connects needle 5, and certainly, being electrically connected part may be other connectors, this reality
It applies in mode only by taking elastic metallic connects needle 5 as an example, is not specifically limited.Bracket 1 include: the upper frame 11 that is oppositely arranged and under
Frame body 12, antenna 21 and shell 2 to be measured are clamped between upper frame 11 and lower frame 12, wherein open up multiple pass through on lower frame 12
The quantity of perforation 121, through hole 121 is identical as the elastic metallic connection quantity of needle 5, and corresponds, each elastic metallic connection
Needle 5 runs through each through hole 121 of lower frame 12, connect with the antenna to be measured 21 in bracket 1.
In test, will be placed between upper frame 11 and lower frame 12 with the shell 2 of antenna 21 to be measured first, will under
Each through hole 121 of frame body 12 connect needle 5 with each elastic metallic and is aligned, and metal feed area 31 connects needle 5 by each elastic metallic
It is connect with antenna 21 to be measured；If it is not perfectly aligned that each through hole 121 connect needle 5 with each elastic metallic, when lower frame 12 pushes, bullet
Property metal connector pins 5 can be compressed, will not be damaged.After each elastic metallic connection needle 5 is connect with antenna 21 to be measured, antenna to be measured
21 information passes to test device by metal feed area 31.Test device can treat the information and parameter preset of observation line 21
It compares, judges whether the antenna 21 to be measured complies with standard, defective products is screened out.
Wherein, as shown in figure 3, metal feed area 31 includes: conductive part 311 and several headroom portions 312, present embodiment
In, conductive part 311 is the copper foil on setting test circuit board 3, and certainly, conductive part 311 can also be made of other conductive materials,
In present embodiment only by taking copper foil as an example, it is not specifically limited.Elastic metallic connection needle 5 is located on conductive part 311, conductive part
311 for passing to test device for the information of antenna 21 to be measured；Several clearance zones are equipped in shell 2, metal feed area 31
Headroom portion 312 is identical as the quantity of clearance zone and corresponds, and the area in headroom portion 312 is greater than the face of its corresponding clearance zone
Product, so that each clearance zone is blocked in each headroom portion 312 completely, the area in headroom portion 312 can obtain more greatly antenna and preferably radiate
Effect.
It is worth noting that, needle 5 is connected at least provided with an elastic metallic in headroom portion 312, if conductive part 311 is equipped with
The quantity of dry feeder line 6, feeder line 6 is consistent with the quantity in headroom portion 312 and corresponds, and each feeder line 6 extends to
In headroom portion 312, and each feeder line 6 is located at the one end in headroom portion 312 equipped with elastic metallic connection needle 5, which connects
Needle 5 is connect for being connect with antenna 21 to be measured through corresponding through hole 121.The effect of feeder line 6 is using test circuit board 3
On one section of cabling, artificial antenna FPC, frequency vibration is humorous in generation；The setting of feeder line 6 ensure that the antenna resonance of test fixture
The principle of generation and mobile phone terminal it is consistent, in turn avoid shell factory in the case where no FPC antenna, manage the inaccuracy of test.
As shown in figure 4, male part 4 can be located at lower frame 12 towards the side of test circuit board 3, lower frame 12 is in rectangular
Shape setting, there are two opposite long side and two opposite wide sides, male parts 4 to be arranged close to any one wide side for tool, male part 4
Including the insulation frame body being located on lower frame 12, the coupled antenna being located on insulation frame body.Coupled antenna can be with antenna to be measured
21 occur coupling effect.The frame body that insulate is integrally formed with lower frame 12, and in present embodiment, lower frame 12 and insulation frame body are adopted
It is made of acrylic, certainly, lower frame 12 and insulation frame body can also be made of other materials, only with sub- gram in present embodiment
For power, it is not specifically limited.Lower frame 12 and insulating frame body by integral forming, it is convenient to produce, and the original without increasing production
Expect cost.Lower frame 12 is used to support coupled antenna, since insulation frame body is located at the upside of lower frame 12, then coupled antenna with it is to be measured
Antenna 21 is always pre-determined distance, can detecte out the variation of 21 end SENSITIVE SIZE of antenna to be measured, prevents dimensional discrepancy to day
It can linearly impact.
It is worth noting that, test circuit board 3 is equipped with grounding connection needle, grounding connection needle is used to connect the ground of shell 2
Line promotes the stability of test so that the baseline of shell 2 is preferably connected together with test fixture.
In mobile phone, 1 frame of postposition dual camera metallic support, earpiece, front camera back side steel disc can all be influenced
The resonance of antenna, but pass through experimental debugging and find, it is only necessary to retain leading on the test circuit board 3 of earpiece projection lower zone
Electric 311 copper foil of portion can realize antenna SENSITIVE SIZE and manage, and promote detection accuracy.
Second embodiment of the present invention is related to a kind of test fixture.Second embodiment and first embodiment substantially phase
Together, be in place of the main distinction: male part 4 is located on test circuit board 3, and male part 4 includes: to be located on test circuit board 3 absolutely
Edge frame body, the coupled antenna being located on insulation frame body upper surface.Each elastic connection needle pass through lower frame 12 through hole 121 with
When antenna 21 to be measured connects, then coupled antenna is in pre-determined distance at a distance from antenna 21 to be measured, can detecte out antenna to be measured
The variation of 21 end SENSITIVE SIZEs, prevents dimensional discrepancy from impacting to antenna performance.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of test fixture characterized by comprising need the bracket of the shell of observation line, for carrying for fixing belt
The test circuit board of the bracket；The test circuit board has the metal feed area being electrically connected with test device；
The test fixture further include: the electrical connection component being located on the metal feed area, the electrical connection component are used
It is electrically connected in the antenna to be measured；
The test fixture further include: with the metal feed area be electrically connected male part, the male part be used for it is described
Antenna coupling to be measured.
2. test fixture according to claim 1, which is characterized in that the bracket include: the upper frame that is oppositely arranged and
Lower frame, the antenna to be measured are clamped between the upper frame and the lower frame；
The male part is located at the lower frame towards the side of the circuit board；
Alternatively, the male part is set on the metal feed area.
3. test fixture according to claim 2, which is characterized in that the connection component includes: described in several are located at
Metal connecting piece on metal feed area opens up several through holes on the lower frame, and the through hole is connect with the metal
Number of packages amount is identical and position corresponds, and each connector is used for across described in the respectively corresponding through hole and entrance
It is electrically supported in shell with the antenna to be measured.
4. test fixture according to claim 3, which is characterized in that each metal connecting piece is elastic metallic connection
Needle.
5. test fixture according to claim 3, which is characterized in that the metal feed area includes: conductive part and several
The quantity in headroom portion, the headroom portion is identical as the quantity of the intracorporal clearance zone of the shell and corresponds, and each headroom
The respectively corresponding clearance zone is blocked completely in portion.
6. test fixture according to claim 5, which is characterized in that at least provided with a gold in each headroom portion
Belong to connector, and the metal connecting piece in each headroom portion passes through feeder line and the conductive part is electrically connected.
7. test smelting tool according to claim 3, which is characterized in that the conductive part is to be set to the test circuit board
On copper foil.
8. test fixture according to claim 1, which is characterized in that the lower frame is rectangle setting, the undercarriage
There are two opposite long side and two opposite wide sides, the male parts to be arranged close to any one of wide side for body tool.
9. test smelting tool according to claim 1, which is characterized in that the male part includes: to be located on the lower frame
Insulation frame body, be located at it is described insulation frame body on coupled antenna.
10. test smelting according to claim 9 tool, which is characterized in that the insulation frame body and the lower frame it is integrated at
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552954.8A CN109596864B (en) | 2018-12-19 | 2018-12-19 | Test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552954.8A CN109596864B (en) | 2018-12-19 | 2018-12-19 | Test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109596864A true CN109596864A (en) | 2019-04-09 |
| CN109596864B CN109596864B (en) | 2021-07-30 |
Family
ID=65963992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552954.8A Active CN109596864B (en) | 2018-12-19 | 2018-12-19 | Test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109596864B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781431A (en) * | 2020-07-13 | 2020-10-16 | 芝纶自动化科技(上海)有限公司 | Testing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29723679U1 (en) * | 1997-07-29 | 1998-12-24 | Wavetek GmbH, 85737 Ismaning | Antenna coupler for testing mobile phones |
| CN101321023A (en) * | 2008-07-18 | 2008-12-10 | 深圳华为通信技术有限公司 | Method for testing mobile phone antenna performance and test device |
| CN204221663U (en) * | 2014-11-10 | 2015-03-25 | 联想(北京)有限公司 | Communication equipment test fixture and non-signaling antenna measurement equipment |
| CN205015416U (en) * | 2015-09-25 | 2016-02-03 | 歌尔声学股份有限公司 | Antenna testing arrangement |
| CN108680797A (en) * | 2018-04-25 | 2018-10-19 | 歌尔股份有限公司 | A kind of antenna test method and antenna measurement equipment |
| CN208109945U (en) * | 2018-04-25 | 2018-11-16 | 歌尔科技有限公司 | A kind of circuit board and antenna measurement tooling for auxiliary antenna test |
-
2018
- 2018-12-19 CN CN201811552954.8A patent/CN109596864B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29723679U1 (en) * | 1997-07-29 | 1998-12-24 | Wavetek GmbH, 85737 Ismaning | Antenna coupler for testing mobile phones |
| CN101321023A (en) * | 2008-07-18 | 2008-12-10 | 深圳华为通信技术有限公司 | Method for testing mobile phone antenna performance and test device |
| CN204221663U (en) * | 2014-11-10 | 2015-03-25 | 联想(北京)有限公司 | Communication equipment test fixture and non-signaling antenna measurement equipment |
| CN205015416U (en) * | 2015-09-25 | 2016-02-03 | 歌尔声学股份有限公司 | Antenna testing arrangement |
| CN108680797A (en) * | 2018-04-25 | 2018-10-19 | 歌尔股份有限公司 | A kind of antenna test method and antenna measurement equipment |
| CN208109945U (en) * | 2018-04-25 | 2018-11-16 | 歌尔科技有限公司 | A kind of circuit board and antenna measurement tooling for auxiliary antenna test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781431A (en) * | 2020-07-13 | 2020-10-16 | 芝纶自动化科技(上海)有限公司 | Testing device |
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| Publication number | Publication date |
|---|---|
| CN109596864B (en) | 2021-07-30 |
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