CN109828153B - Resistance value test fixture and test method of camera module - Google Patents
Resistance value test fixture and test method of camera module Download PDFInfo
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- CN109828153B CN109828153B CN201910114846.0A CN201910114846A CN109828153B CN 109828153 B CN109828153 B CN 109828153B CN 201910114846 A CN201910114846 A CN 201910114846A CN 109828153 B CN109828153 B CN 109828153B
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Abstract
The invention discloses a resistance value test fixture of a camera module, which comprises: the fixing part is used for fixing the camera module to be tested; the electric connection part comprises a first electric connection part and a second electric connection part, wherein the first electric connection part is used for being in electric contact with a first resistance value test point on the camera module to be tested, the second electric connection part is used for being in electric contact with a second resistance value test point on the camera module to be tested, and the first electric connection part and the second electric connection part are both arranged on the fixing part; and the external circuit is used for electrically connecting the first electric connecting piece and the second electric connecting piece to an external resistance value testing device for resistance value testing. This resistance test fixture can fix the module of making a video recording that awaits measuring to guarantee the stability of electrical contact, make resistance test more accurate and convenient, guarantee product quality. The invention also discloses a resistance value testing method of the camera module.
Description
Technical Field
The invention relates to the field of camera test, in particular to a resistance test fixture and a resistance test method for a camera module.
Background
In the production process of the camera module, the resistance of the camera module needs to be tested so as to control the resistance and screen the good products and the defective products. At present, when the resistance test of the module of making a video recording, all test the direct module electrical contact of making a video recording of pen-shape metre by the handheld universal meter of testing personnel, testing personnel's slight hand is trembled the error that all can arouse the resistance, leads to the resistance test result inaccurate.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a resistance value testing jig for a camera module, which can fix the camera module to be tested so as to ensure the stability of electric contact, ensure that the resistance value testing is more accurate and convenient and ensure the product quality.
The technical problem to be solved by the invention is realized by the following technical scheme:
the utility model provides a resistance test fixture of module of making a video recording, includes:
the fixing part is used for fixing the camera module to be tested;
the electric connection part comprises a first electric connection part and a second electric connection part, wherein the first electric connection part is used for being in electric contact with a first resistance value test point on the camera module to be tested, the second electric connection part is used for being in electric contact with a second resistance value test point on the camera module to be tested, and the first electric connection part and the second electric connection part are both arranged on the fixing part;
and the external circuit is used for electrically connecting the first electric connecting piece and the second electric connecting piece to an external resistance value testing device for resistance value testing.
Furthermore, the camera module to be tested comprises a camera and a connector, the camera is carried on the first PCB, the connector is carried on the second PCB, and the first PCB and the second PCB are electrically connected through an FPC.
Furthermore, the first resistance test point is a first copper exposure area on one surface of the first PCB, which faces away from the camera, and the second resistance test point is a second copper exposure area on one surface of the second PCB, which faces away from the connector.
Furthermore, the module of making a video recording that awaits measuring still includes a conductive auxiliary material, conductive auxiliary material is located first PCB dorsad on the camera one side and with the metal casing looks electricity of camera connects.
Furthermore, the first resistance test point is the conductive auxiliary material, and the second resistance test point is a metal shell of the camera.
Further, the conductive auxiliary material is copper foil, conductive cloth or conductive sheet.
Further, the first and/or second electrical connection members are retractable probes.
Further, the retractable probe is a spring probe.
Furthermore, the fixed part comprises an upper cover and a lower cover which can be buckled relatively, and after the buckling, a fixed space for accommodating the fixed camera module to be detected is formed between the upper cover and the lower cover.
A resistance value test method of a camera module comprises the following steps:
step 1: providing the resistance value test fixture;
step 2: fixing the camera module to be tested on the fixing part, so that a first resistance value test point on the camera module to be tested is in electrical contact with a first electrical connecting piece on the resistance value test fixture, and a second resistance value test point on the camera module to be tested is in electrical contact with a second electrical connecting piece on the resistance value test fixture;
and step 3: and carrying out resistance value test by an external resistance value test device electrically connected with the external circuit.
The invention has the following beneficial effects: the resistance value test fixture fixes the camera module to be tested through the fixing part so as to fix the relative position between the camera module to be tested and the first electric connecting piece and the second electric connecting piece on the fixing part, can prevent the camera module to be tested and the first electric connecting piece and the second electric connecting piece from generating relative position due to factors such as shaking, moving and the like in the test process, can ensure the stability of electric contact, enables the resistance value test to be more accurate and convenient, and ensures the product quality.
Drawings
Fig. 1 is a schematic view of a conventional camera module;
FIG. 2 is a schematic diagram of a resistance testing fixture according to the present invention;
FIG. 3 is a diagram illustrating a usage status of the resistance testing fixture shown in FIG. 2;
FIG. 4 is a schematic diagram of another resistance value testing fixture according to the present invention;
fig. 5 is a diagram illustrating another usage status of the resistance testing fixture shown in fig. 4.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Example one
As shown in fig. 1, the camera module 1 includes a camera 11 and a connector 12, the camera 11 is mounted on a first PCB, the connector 12 is mounted on a second PCB, and the first PCB and the second PCB are electrically connected through an FPC; some camera modules 1 further include a conductive auxiliary material 13, where the conductive auxiliary material 13 is disposed on a surface of the first PCB facing away from the camera 11 and electrically connected to the metal housing of the camera 11, where the conductive auxiliary material 13 may be, but is not limited to, a copper foil, a conductive cloth, a conductive sheet, or the like.
As shown in fig. 2-5, a resistance value testing fixture of a camera module 1 includes:
the fixing part 21 is used for fixing the camera module 1 to be tested;
the electric connection part comprises a first electric connection part 221 used for being in electric contact with a first resistance value test point on the camera module 1 to be tested and a second electric connection part 222 used for being in electric contact with a second resistance value test point on the camera module 1 to be tested, and the first electric connection part 221 and the second electric connection part 222 are both arranged on the fixing part 21;
the external circuit 3 is used for electrically connecting the first connecting element 221 and the second connecting element 222 to an external resistance value testing device for resistance value testing.
The resistance value test fixture fixes the camera module 1 to be tested through the fixing part 21 so as to stabilize the relative position between the camera module 1 to be tested and the first connecting piece 221 and the second connecting piece 222 on the fixing part 21, thereby preventing the camera module 1 to be tested and the first connecting piece 221 and the second connecting piece 222 from generating relative displacement due to factors such as shaking and moving in the test process, ensuring the stability of electric contact, ensuring the resistance value test to be more accurate and convenient and ensuring the product quality.
The resistance value testing device can be a multimeter for reading a current value and a voltage value, and can also be a resistance tester for directly reading a resistance value, and the like.
Specifically, the fixing portion 21 includes an upper cover 212 and a lower cover 211 that can be relatively engaged, and after the engagement, a fixing space 23 for accommodating and fixing the camera module 1 to be tested is formed between the upper cover 212 and the lower cover 211; one side of the upper cover 212 is rotatably connected to one side of the lower cover 211 to rotate relative to the lower cover 211 so as to be fastened to or unlocked from the lower cover 211.
The first connecting piece 221 and the second connecting piece 222 are retractable probes arranged on the fixing portion 21, and a first pinhole for accommodating and installing the first connecting piece 221 and a second pinhole for accommodating and installing the second connecting piece 222 are arranged in the fixing portion 21; one end of the first connecting element 221 extends out of the first pinhole and is located at a position of the fixing space 23 corresponding to a first resistance value test point of the camera module 1 to be tested, and the other end of the first connecting element is electrically connected with a part of circuits in the external circuit 3 located in the fixing part 21; one end of the second connector 222 extends out of the second pinhole and is located at a position of the fixing space 23 corresponding to a second resistance value test point of the to-be-tested camera module 1, and the other end of the second connector is electrically connected to a part of the external circuit 3 located in the fixing portion 21. When the upper cover 212 and the lower cover 211 are fastened together to fix the camera module 1 to be tested in the fixing space 23 of the fixing portion 21, the camera module 1 to be tested presses one end of the first connecting piece 221 and one end of the second connecting piece 222 into the first pin hole and the second pin hole respectively, so that one end of the first connecting piece 221 abuts against the first resistance test point of the camera module 1 to be tested to form electrical contact, and one end of the second connecting piece 222 abuts against the second resistance test point of the camera module 1 to be tested to form electrical contact.
Preferably, the retractable probe is a spring probe installed in the corresponding pinhole through a spring, and under the elastic force action of the spring, the retractable probe extends out of the corresponding pinhole, so that one end of the retractable probe extends out of the corresponding pinhole of the fixing portion 21, the upper cover 212 and the lower cover 211 are buckled together, the camera module 1 to be tested is fixed in the fixing space 23 of the fixing portion 21, and then the retractable probe retracts into the corresponding pinhole, so that one end of the retractable probe abuts against the camera module 1 to be tested and forms an electrical contact with the camera module 1 to be tested, and the other end of the retractable probe abuts against a connecting contact of a part of circuits in the fixing portion 21 in the external circuit 3 and forms an electrical contact with the external circuit 3.
The part of the external circuit 3 located in the fixing portion 21 is a copper metal part, and the part of the external circuit located outside the fixing portion 21 is an external wire.
The resistance value of the camera module 1 to be tested, which needs to be tested, is two, one is the module resistance value (excluding the conductive auxiliary material 13) between the camera 11 and the connector 12, and the other is the single resistance value between the camera 11 and the conductive auxiliary material 13.
In testing the module resistance between the camera 11 and the connector 12, the first resistance test point is a first copper exposure area on the side of the first PCB facing away from the camera 11, and the second resistance test point is a second copper exposure area on the side of the second PCB facing away from the connector 12. As shown in fig. 2 and 3, the first connecting part 221 and the second connecting part 222 are both disposed on the lower cover 211, and the external circuit 3 is also disposed on the lower cover 211.
And testing the single resistance between the camera 11 and the conductive auxiliary material 13, wherein the first resistance test point is the conductive auxiliary material 13, and the second resistance test point is the metal shell of the camera 11. As shown in fig. 4 and 5, the first connecting element 221 is disposed on the lower cover 211, the second connecting elements 222 are disposed on the upper cover 212, a part of the external circuit 3 is disposed on the upper cover 212, a part of the external circuit is disposed on the lower cover 211, and after the upper cover 212 and the lower cover 211 are fastened together, the external circuit 3 is divided into two parts of circuits disposed on the upper cover 212 and the lower cover 211, which are electrically connected together to form a complete circuit. In this embodiment, a protruding electrical connector 31 is disposed on the lower cover 211 to electrically connect a part of the circuit of the lower cover 211 with a part of the circuit of the upper cover 212 after being fastened, and the electrical connector 31 may be, but is not limited to, a copper metal.
Example two
A resistance value test method of a camera module 1 comprises the following steps:
step 1: providing a resistance value test fixture in the first embodiment;
step 2: fixing the camera module 1 to be tested on the fixing part 21, so that a first resistance value test point on the camera module 1 to be tested is in electrical contact with a first connecting piece 221 on the resistance value test fixture, and a second resistance value test point on the camera module 1 to be tested is in electrical contact with a second connecting piece 222 on the resistance value test fixture;
and step 3: and carrying out resistance value test by an external resistance value test device electrically connected with the external circuit 3.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a resistance test fixture of module of making a video recording which characterized in that includes:
the fixing part is used for fixing the camera module to be tested;
the electric connection part comprises a first electric connection part and a second electric connection part, wherein the first electric connection part is used for being in electric contact with a first resistance value test point on the camera module to be tested, the second electric connection part is used for being in electric contact with a second resistance value test point on the camera module to be tested, and the first electric connection part and the second electric connection part are both arranged on the fixing part;
the external circuit is used for electrically connecting the first electric connecting piece and the second electric connecting piece to an external resistance value testing device for resistance value testing;
the camera module to be tested comprises a camera and a connector, the camera is carried on a first PCB, the connector is carried on a second PCB, and the first PCB and the second PCB are electrically connected through an FPC; the first resistance test point is a first copper exposure area on one surface of the first PCB, which faces away from the camera, and the second resistance test point is a second copper exposure area on one surface of the second PCB, which faces away from the connector;
the fixing part comprises an upper cover and a lower cover which can be buckled oppositely, and after buckling, a fixing space for accommodating and fixing the camera module to be detected is formed between the upper cover and the lower cover; the first connecting piece and the second connecting piece are arranged on the lower cover, and the external circuit is also arranged on the lower cover.
2. The fixture for testing the resistance of the camera module according to claim 1, wherein the camera module to be tested further comprises a conductive auxiliary material, and the conductive auxiliary material is disposed on a surface of the first PCB facing away from the camera and electrically connected to the metal housing of the camera.
3. The fixture for testing the resistance of a camera module according to claim 1, wherein the first and/or second electrical connectors are retractable probes.
4. The fixture for testing the resistance of a camera module according to claim 3, wherein the retractable probe is a spring probe.
5. The utility model provides a resistance test fixture of module of making a video recording which characterized in that includes:
the fixing part is used for fixing the camera module to be tested;
the electric connection part comprises a first electric connection part and a second electric connection part, wherein the first electric connection part is used for being in electric contact with a first resistance value test point on the camera module to be tested, the second electric connection part is used for being in electric contact with a second resistance value test point on the camera module to be tested, and the first electric connection part and the second electric connection part are both arranged on the fixing part;
the external circuit is used for electrically connecting the first electric connecting piece and the second electric connecting piece to an external resistance value testing device for resistance value testing;
the camera module to be tested comprises a camera and a connector, the camera is carried on a first PCB, the connector is carried on a second PCB, and the first PCB and the second PCB are electrically connected through an FPC; the conductive auxiliary material is arranged on one surface of the first PCB, which is back to the camera, and is electrically connected with the metal shell of the camera; the first resistance test point is the conductive auxiliary material, and the second resistance test point is a metal shell of the camera;
the fixing part comprises an upper cover and a lower cover which can be buckled oppositely, and after buckling, a fixing space for accommodating and fixing the camera module to be detected is formed between the upper cover and the lower cover; the first electric connecting piece is arranged on the lower cover, the second electric connecting piece is arranged on the upper cover, one part of the external circuit is arranged on the upper cover, the other part of the external circuit is arranged on the lower cover, and after the upper cover and the lower cover are buckled together, the external circuit is divided into two parts of circuits which are arranged on the upper cover and the lower cover and are electrically connected together to form a complete circuit.
6. The fixture for testing the resistance of a camera module according to claim 5, wherein the conductive auxiliary material is a copper foil, a conductive cloth or a conductive sheet.
7. The fixture for testing the resistance of a camera module according to claim 5, wherein the first and/or second electrical connectors are retractable probes.
8. The fixture for testing the resistance of a camera module according to claim 7, wherein the retractable probe is a spring probe.
9. A resistance value test method of a camera module is characterized by comprising the following steps:
step 1: providing a resistance value test fixture according to any one of claims 1 to 8;
step 2: fixing the camera module to be tested on the fixing part, so that a first resistance value test point on the camera module to be tested is in electrical contact with a first electrical connecting piece on the resistance value test fixture, and a second resistance value test point on the camera module to be tested is in electrical contact with a second electrical connecting piece on the resistance value test fixture;
and step 3: and testing the resistance value through an external resistance value testing device electrically connected with the external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114846.0A CN109828153B (en) | 2019-02-14 | 2019-02-14 | Resistance value test fixture and test method of camera module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114846.0A CN109828153B (en) | 2019-02-14 | 2019-02-14 | Resistance value test fixture and test method of camera module |
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| CN109828153A CN109828153A (en) | 2019-05-31 |
| CN109828153B true CN109828153B (en) | 2022-01-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866678A (en) * | 2020-06-30 | 2021-12-31 | 北京小米移动软件有限公司 | Detection jig, detection method, terminal and storage medium |
| CN111901586B (en) * | 2020-07-29 | 2021-12-10 | 重庆市天实精工科技有限公司 | Camera grounding intelligent test system and method |
| CN113411572B (en) * | 2021-06-17 | 2023-04-11 | 昆山丘钛微电子科技股份有限公司 | Test method, device and tool for camera module |
| CN113406481A (en) * | 2021-07-08 | 2021-09-17 | 陈清梅 | Integrated circuit input end testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101321968B1 (en) * | 2013-06-18 | 2013-10-28 | 프라임텍 주식회사 | Electric resistance testing socket for camera module |
| CN203788411U (en) * | 2014-04-18 | 2014-08-20 | 南昌欧菲光电技术有限公司 | Positioning device for camera module test |
| KR20170024650A (en) * | 2015-08-25 | 2017-03-08 | 주식회사 메카텍시스템즈 | Test socket for camera module |
| CN206061012U (en) * | 2016-08-31 | 2017-03-29 | 横店集团东磁有限公司 | A kind of test fixture of camera module |
| CN206389485U (en) * | 2016-12-16 | 2017-08-08 | 群光电子(苏州)有限公司 | A kind of detection for camera module, focusing tool |
| CN107071238A (en) * | 2016-12-23 | 2017-08-18 | 江苏正桥影像科技股份有限公司 | A kind of ultra-thin high-definition camera module and its manufacturing process |
| CN207992371U (en) * | 2017-09-30 | 2018-10-19 | 群光电子(苏州)有限公司 | A kind of gum and camera module product insulating properties measurement jig |
| CN208386815U (en) * | 2018-08-15 | 2019-01-15 | 信利光电股份有限公司 | A kind of dual camera mould group testing jig |
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