Camera module test fixture and system

Abstract

The present invention relates to a camera module test fixture and system, the camera module test fixture comprises a fixture body, a heating device and a temperature measuring device are fixed on the base and / or upper cover of the fixture body, a light through hole is provided on the upper cover, corresponding to the lens of the camera module positioned on the base, a sealing cover for sealing the light through hole is fixed on the upper cover, a light source is fixed on the inner side of the sealing cover, and the light emitted by the light source reaches the lens of the camera module through the light through hole of the upper cover. The temperature of the test fixture is adjustable, and the product can be sealed at different temperatures according to different customer requirements to understand whether the function and performance of the product can remain normal under different environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of camera module testing, and in particular relates to a camera module testing fixture and system. Background Art

[0002] Currently, all production environments in the module industry are produced and tested under a constant temperature and humidity environment. It is impossible to determine whether the product can maintain normal functions in a high temperature environment, and it is impossible to analyze whether the high temperature environment has an adverse effect on product performance. Summary of the invention

[0003] The present invention provides a camera module test fixture and system. The temperature of the test fixture is adjustable, and the sealing test of the product can be performed at different temperatures according to different customer requirements to understand whether the function and performance of the product can remain normal in different environments.

[0004] The present invention is implemented as follows: The present invention discloses a camera module test fixture, including a fixture body, a heating device and a temperature measuring device are fixed on the base and / or the upper cover of the fixture body, a light-through hole is provided on the upper cover of the fixture body, corresponding to the lens of the camera module positioned on the base, a sealing cover for sealing the light-through hole is fixed on the upper cover, a light source is fixed on the inner side of the sealing cover, and the light emitted by the light source reaches the lens of the camera module through the light-through hole of the upper cover.

[0005] Further, a first heating block is fixed in the base of the fixture body, a limiting groove for limiting the camera module is provided at the upper end of the first heating block, and a limiting groove for limiting the probe fixing block is also provided on the first heating block, the limiting groove passes through the first heating block from top to bottom, the probe fixing block is located in the limiting groove of the first heating block, a plurality of pinholes are provided on the probe fixing block, probes are inserted in the pinholes, one end of the probe is used to be electrically connected to the connector of the camera module, and the other end of the probe is used to be electrically connected to the PCB board fixed at the lower end of the base;

[0006] The first heating block includes a first heat conductive block body and a first electric heating element arranged in the first heat conductive block body; a first temperature measuring instrument is arranged in the first heat conductive block body, and the first electric heating element and the first temperature measuring instrument are both provided with lead wires for electrical connection with the temperature control system.

[0007] Furthermore, a needle mold is fixed on the probe fixing block for supporting and limiting the connector of the camera module; an opening is provided on one side of the limiting groove of the first heating block close to the limiting groove so that the limiting groove is connected to the limiting groove of the needle mold.

[0008] Furthermore, the base is provided with a heating block accommodating groove which passes through the base from top to bottom, and the first heating block is embedded and fixed in the heating block accommodating groove of the base.

[0009] Furthermore, a first heat insulating plate is provided at the lower end of the first heating block, and a through hole is provided on the first heat insulating plate, which is communicated with the through hole on the first heating block and is used for the probe fixing block to be embedded.

[0010] Furthermore, a second heating block is fixed in the upper cover of the fixture body, a pressing block for pressing a connector of the camera module is fixed on the lower end surface of the second heating block, and when the base and the upper cover are closed, the pressing block corresponds to the probe fixing block up and down; a limiting block for limiting the camera module body is fixed on the lower end surface of the second heating block, the limiting block is provided with a light-through hole which passes through the limiting block up and down, the light-through hole of the limiting block is communicated with the light-through hole provided on the second heating block, and the light-through hole of the second heating block is communicated with the light-through hole of the upper cover; when the base and the upper cover are closed, the light-through hole of the limiting block corresponds to the lens of the camera module up and down;

[0011] The second heating block comprises a second heat conducting block body and a second electric heating element arranged in the second heat conducting block body; a second temperature measuring instrument is arranged in the second heat conducting block body, and the second electric heating element and the second temperature measuring instrument are both provided with lead wires for being electrically connected to the temperature control system;

[0012] A groove for mounting a pressing block and a limiting block is provided at the lower end of the second heating block, and a light-through hole is provided on the second heating block in the groove area.

[0013] Furthermore, the upper cover includes an upper cover body and a second heat insulation plate, the second heat insulation plate is fixed at the upper end of the upper cover body to form an upper cover, the upper cover body is provided with a heating block accommodating groove which passes through the upper cover body from top to bottom, and the second heating block is embedded and fixed in the heating block accommodating groove of the upper cover body; a light hole is provided on the second heat insulation plate, which is connected to the light hole provided on the second heating block for allowing light from the light source to pass through.

[0014] The second heat insulation plate is fixedly connected to the upper cover body, and the second heating block is fixedly connected to the second heat insulation plate by screws.

[0015] Furthermore, the inner cavity of the sealing cover is communicated with the light-through hole of the upper cover; the light source is provided with a lead-out line leading out of the inner cavity of the sealing cover; the light source is electrically connected to the light source control system via the lead-out line.

[0016] The sealing cover is lightproof. The sealing cover of this embodiment has a side wall provided with a light-through hole of the ring upper cover and a sealing plate fixed to the upper end of the side wall. The light source is fixed to the lower end of the sealing plate. The light source is an LED lamp bead.

[0017] Furthermore, the upper cover of the fixture body is hinged to the base, and a closing device is provided between the upper cover and the base.

[0018] The invention discloses a camera module testing jig, comprising a jig body, an upper cover of the jig body being provided with a light through hole corresponding to a lens of a camera module positioned on a base, a sealing cover for sealing the light through hole being fixed on the upper cover, a light source being fixed on the inner side of the sealing cover, and light emitted by the light source reaching the lens of the camera module through the light through hole of the upper cover.

[0019] The invention discloses a camera module testing system, comprising a computer, a test box, a light source control system and the camera module testing fixture as described above, wherein the light source in the camera module testing fixture is electrically connected to the light source control system, the camera module positioned on the camera module testing fixture is electrically connected to the test box via a PCB board, and the test box is connected to the computer via a communication cable.

[0020] A test main board is provided in the test box, and a female header is provided on the test box, which is electrically connected to the test main board. The test fixture is located on the test box, and the test fixture is fixed to the upper end surface of the PCB board. A pin header is fixed to the lower end surface of the PCB board, and the pin header at the lower end of the PCB board is inserted into the female header of the test box. The camera module is positioned on the test fixture and is electrically connected to the probe pads on the PCB board through a plurality of probes, and the probe pads on the PCB board are electrically connected to the pin headers accordingly.

[0021] The present invention has the following beneficial effects: the fixture of the present invention has a heating function and a temperature monitoring function, so that the temperature of the test fixture is adjustable, and the product can be sealed and tested at different temperatures according to different customer requirements to understand whether the function and performance of the product can remain normal under different environments.

[0022] The base and the upper cover of the present invention are each equipped with a heating tube, a highly sensitive intelligent temperature controller and a temperature measuring instrument, which can accurately control the temperature of the fixture. There are heat insulation board devices above and below the heating block to effectively insulate and prevent operators from being scalded.

[0023] The upper cover of the present invention is provided with a light-through hole corresponding to the lens of the camera module positioned on the base, and a sealing cover for sealing the light-through hole is fixed on the upper cover. By setting the sealing cover, the inside of the fixture can be in a sealed state, and the heat preservation effect is better. A light source is fixed on the inner side of the sealing cover, and the light emitted by the light source reaches the lens of the camera module through the light-through hole of the upper cover. When the fixture is closed, the LED lamp beads configured inside the upper cover light up, if there is no problem with the product, a bright spot can be displayed on the computer screen, and if there is a problem with the product, no bright spot will be displayed on the computer screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a camera module test fixture with a function of simulating a high temperature environment provided by an embodiment of the present invention after the cover is closed;

[0025] Figure 2 A schematic diagram of the structure of a camera module test fixture with a function of simulating a high temperature environment after the cover is opened, provided by an embodiment of the present invention;

[0026] Figure 3 A schematic structural diagram of a first heating block provided in one embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of a second heating block provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a base provided in one embodiment of the present invention;

[0029] Figure 6 A schematic structural diagram of an upper cover provided in one embodiment of the present invention.

[0030] In the accompanying drawings, 1 is a base, 1-1 is a heating block accommodating groove of the base, 2 is an upper cover, 2-1 is a heating block accommodating groove of the upper cover, 3 is a PCB board, 4 is a first heating block, 41 is a lead wire of a first electric heating element, 42 is a lead wire of a first thermometer, 43 is a limiting groove, 5 is a probe fixing block, 6 is a needle mold, 7 is a first thermal insulation board, 8 is a second heating block, 81 is a lead wire of a second electric heating element, 82 is a lead wire of a second thermometer, 9 is a pressing block, 10 is a limiting block, 11 is a screw, 12 is a second thermal insulation board, 13 is a sealing cover, and 14 is a lead wire of a light source. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "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 invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] Embodiment 1

[0035] See also Figures 1 to 6 The present embodiment discloses a camera module test fixture, including a fixture body, a heating device and a temperature measuring device are fixed on the base 1 and / or the upper cover 2 of the fixture body, a light through hole is provided on the upper cover 2, corresponding to the lens of the camera module positioned on the base 1, a sealing cover 13 for sealing the light through hole is fixed on the upper cover 2, a light source is fixed on the inner side of the sealing cover 13, and the light emitted by the light source reaches the lens of the camera module through the light through hole of the upper cover 2.

[0036] Further, a first heating block 4 is fixed in the base 1, and a limiting groove 43 for limiting the camera module body is provided at the upper end of the first heating block 4, and a limiting groove for limiting the probe fixing block 5 is also provided on the first heating block 4, and the limiting groove passes through the first heating block 4 from top to bottom, and the probe fixing block 5 is located in the limiting groove of the first heating block 4, and a plurality of pinholes are provided on the probe fixing block 5, and probes are inserted into the pinholes, and one end of the probe is used to be electrically connected to the connector of the camera module, and the other end of the probe is used to be electrically connected to the PCB board 3 fixed at the lower end of the base 1;

[0037] The first heating block 4 includes a first heat conductive block body and a first electric heating element arranged in the first heat conductive block body; a first temperature measuring instrument is arranged in the first heat conductive block body, and the first electric heating element is provided with a lead wire 41 for electrically connecting to a temperature control system. The first temperature measuring instrument is provided with a lead wire 42 for electrically connecting to a temperature control system. The first electric heating element is a heating tube. Both the first heat conductive block body and the second heat conductive block body are made of heat conductive materials.

[0038] Furthermore, a needle mold 6 is fixed on the probe fixing block 5 for supporting and limiting the connector of the camera module; an opening is set on one side of the limiting groove 43 of the first heating block 4 close to the limiting groove, so that the limiting groove 43 is connected to the limiting groove of the needle mold 6.

[0039] Furthermore, the base 1 is provided with a heating block accommodating groove 1 - 1 which passes through the base 1 from top to bottom, and the first heating block 4 is embedded and fixed in the heating block accommodating groove 1 - 1 of the base 1 .

[0040] Furthermore, a first heat insulating plate 7 is provided at the lower end of the first heating block 4 . A through hole is provided on the first heat insulating plate 7 , which is communicated with the through hole on the first heating block 4 and is used for the probe fixing block 5 to be embedded.

[0041] Furthermore, a second heating block 8 is fixed in the upper cover 2, and a pressing block 9 for pressing the connector of the camera module is fixed on the lower end surface of the second heating block 8. When the base 1 and the upper cover 2 are closed, the pressing block 9 corresponds to the probe fixing block 5 up and down; a limit block 10 for limiting the camera module body is fixed on the lower end surface of the second heating block 8 (used to press the module head to prevent the module from warping in the fixture), and the limit block 10 is provided with a light hole that passes through the limit block 10 up and down, and the light hole of the limit block 10 is connected with the light hole provided on the second heating block 8, and the light hole of the second heating block 8 is connected with the light hole of the upper cover 2; when the base 1 and the upper cover 2 are closed, the light hole of the limit block 10 corresponds to the lens of the camera module up and down.

[0042] The second heating block 8 includes a second heat conducting block body and a second electric heating element disposed in the second heat conducting block body; a second temperature measuring instrument is disposed in the second heat conducting block body, and the second electric heating element is provided with a lead wire 81 for electrically connecting to a temperature control system. The second temperature measuring instrument is provided with a lead wire 82 for electrically connecting to a temperature control system.

[0043] The lower end of the second heating block 8 is provided with a groove for installing the pressing block 9 and the limiting block 10, and the light-through hole provided on the second heating block 8 is arranged in the groove area thereof. The limiting block 10 and the pressing block 9 are fixed in the groove at the lower end of the second heating block 8 by screws 11. The second electric heating element is a heating tube.

[0044] Furthermore, the upper cover 2 includes an upper cover 2 body and a second heat insulation plate 12, the second heat insulation plate 12 is fixed at the upper end of the upper cover 2 body to form the upper cover 2, the upper cover 2 body is provided with a heating block accommodating groove which passes through the upper cover 2 body from top to bottom, and the second heating block 8 is embedded and fixed in the heating block accommodating groove of the upper cover 2 body; the second heat insulation plate 12 is provided with a light hole which is connected with the light hole provided on the second heating block 8 for allowing light from the light source to pass through.

[0045] The second heat insulating plate 12 is fixedly connected to the main body of the upper cover 2 , and the second heating block 8 is fixedly connected to the second heat insulating plate 12 by screws.

[0046] Furthermore, the inner cavity of the sealing cover 13 is communicated with the light-through hole of the upper cover 2; the light source is provided with a lead-out line 14 leading out of the inner cavity of the sealing cover 13; the light source is electrically connected to the light source control system via the lead-out line.

[0047] The sealing cover 13 is lightproof. The sealing cover 13 of this embodiment has a side wall provided with a light-through hole around the upper cover 2 and a sealing plate fixed to the upper end of the side wall. The light source is fixed to the lower end of the sealing plate. The light source is an LED lamp bead.

[0048] Furthermore, the upper cover 2 is hinged to the base 1 , and a closing device is provided between the upper cover 2 and the base 1 .

[0049] When the base is closed with the upper cover, the first heating block corresponds to the second heating block up and down.

[0050] The temperature of the test fixture of the present invention is adjustable, and the sealing test of the product can be performed at different temperatures according to different customer requirements to understand whether the function and performance of the product can be maintained normally under different environments.

[0051] Embodiment 2

[0052] The embodiment of the present invention discloses a camera module test fixture, including a fixture body, an upper cover of the fixture body is provided with a light hole corresponding to the lens of the camera module positioned on the base, a sealing cover for sealing the light hole is fixed on the upper cover, a light source is fixed on the inner side of the sealing cover, and light emitted by the light source reaches the lens of the camera module through the light hole of the upper cover. The fixture body of this embodiment can be an existing fixture body.

[0053] Embodiment 3

[0054] This embodiment discloses a camera module test system, including a computer, a test box, a light source control system, and a camera module test fixture as described in Embodiment 1 or Embodiment 2, wherein the light source in the camera module test fixture is electrically connected to the light source control system, the camera module positioned on the camera module test fixture is electrically connected to the test box via a PCB board 3, and the test box is connected to the computer via a communication cable. When the fixture is closed, when the LED lamp beads configured inside the upper cover light up, if there is no problem with the product, a bright spot may be displayed on the computer screen, and if there is a problem with the product, no bright spot will be displayed on the computer screen.

[0055] Furthermore, a test main board is provided in the test box, and a female header is provided in the test box, which is electrically connected to the test main board. The test fixture is located on the test box, and the test fixture is fixed to the upper end surface of the PCB board 3. A pin header is fixed to the lower end surface of the PCB board 3. The pin header at the lower end of the PCB board 3 is inserted into the female header of the test box. The camera module is positioned on the test fixture and is electrically connected to the probe pads or interfaces on the PCB board 3 through a number of probes. The probe pads or interfaces on the PCB board 3 are electrically connected to the pin headers accordingly.

[0056] When the camera module test fixture adopts the camera module test fixture described in Example 1, the camera module test system also includes a temperature control system, and the heating device and the temperature measuring device of the camera module test fixture are electrically connected to the temperature control system.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A camera module test fixture, comprising a fixture body, characterized in that: A heating device and a temperature measuring device are fixed on the base and the upper cover of the fixture body; a light through hole is provided on the upper cover of the fixture body, corresponding to the lens of the camera module positioned on the base; a sealing cover for sealing the light through hole is fixed on the upper cover; a light source is fixed on the inner side of the sealing cover; light emitted by the light source reaches the lens of the camera module through the light through hole of the upper cover; A first heating block is fixed in the base of the fixture body, a limiting groove for limiting the camera module is provided at the upper end of the first heating block, and a limiting groove for limiting the probe fixing block is also provided on the first heating block, the limiting groove passes through the first heating block from top to bottom, the probe fixing block is located in the limiting groove of the first heating block, a plurality of pinholes are provided on the probe fixing block, probes are inserted into the pinholes, one end of the probe is used to be electrically connected to the connector of the camera module, and the other end of the probe is used to be electrically connected to the PCB board fixed at the lower end of the base; The first heating block comprises a first heat conducting block body and a first electric heating element arranged in the first heat conducting block body; a first temperature measuring instrument is arranged in the first heat conducting block body, and both the first electric heating element and the first temperature measuring instrument are provided with lead wires for being electrically connected to the temperature control system; A second heating block is fixed in the upper cover of the fixture body, and a pressing block for pressing the connector of the camera module is fixed on the lower end surface of the second heating block, and when the base and the upper cover are closed, the pressing block corresponds to the probe fixing block up and down; a limiting block for limiting the camera module body is fixed on the lower end surface of the second heating block, and the limiting block is provided with a light-through hole which passes through the limiting block up and down, and the light-through hole of the limiting block is connected with the light-through hole provided on the second heating block, and the light-through hole of the second heating block is connected with the light-through hole of the upper cover; when the base and the upper cover are closed, the light-through hole of the limiting block corresponds to the lens of the camera module up and down; The second heating block includes a second heat conductive block body and a second electric heating element arranged in the second heat conductive block body; a second temperature measuring instrument is arranged in the second heat conductive block body, and the second electric heating element and the second temperature measuring instrument are both provided with lead wires for electrical connection with the temperature control system.

2. The camera module test fixture according to claim 1, characterized in that: A needle mold is fixed on the probe fixing block for supporting and limiting the connector of the camera module; an opening is arranged on one side of the limiting groove of the first heating block close to the limiting groove so that the limiting groove is connected to the limiting groove of the needle mold.

3. The camera module test fixture according to claim 1, characterized in that: The base is provided with a heating block accommodating groove which passes through the base up and down, and the first heating block is embedded and fixed in the heating block accommodating groove of the base.

4. The camera module test fixture according to claim 1, characterized in that: A first heat insulating plate is disposed at the lower end of the first heating block. A through hole is disposed on the first heat insulating plate and is communicated with the through hole on the first heating block for embedding the probe fixing block.

5. The camera module test fixture according to claim 1, characterized in that: A groove for mounting a pressing block and a limiting block is provided at the lower end of the second heating block, and a light-through hole is provided on the second heating block in the groove area.

6. The camera module test fixture according to claim 5, characterized in that: The upper cover comprises an upper cover body and a second heat insulation plate, wherein the second heat insulation plate is fixed to the upper end of the upper cover body to form the upper cover, and the upper cover body is provided with a heating block accommodating groove which passes through the upper cover body from top to bottom, and the second heating block is embedded and fixed in the heating block accommodating groove of the upper cover body; a light through hole is provided on the second heat insulation plate, which is connected with the light through hole provided on the second heating block, and is used for light from the light source to pass through; The inner cavity of the sealing cover is communicated with the light-through hole of the upper cover; the light source is provided with a lead-out line leading out of the inner cavity of the sealing cover; the light source is electrically connected to the light source control system via the lead-out line.

7. The camera module test fixture according to claim 1, characterized in that: The upper cover of the fixture body is hinged to the base, and a cover closing device is provided between the upper cover and the base.

8. A camera module testing system, characterized in that: The invention comprises a computer, a test box, a light source control system and a camera module test fixture as described in any one of claims 1 to 7, wherein the light source in the camera module test fixture is electrically connected to the light source control system, the camera module positioned on the camera module test fixture is electrically connected to the test box through a PCB board, and the test box is connected to the computer through a communication cable.

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