阅读说明：本技术 摄像模组测试夹具 (Camera module test fixture ) 是由 王传阳 冯天山 严春琦 潘家威 吴兵强 于 2020-05-26 设计创作，主要内容包括：本申请提供了一种摄像模组测试夹具,包括：夹具安装板,其至少一个表面设置有多个气孔,并在夹具安装板的内部设置有气路通道,气路通道的一端连接至气孔,另一端连接至外部冷却源的冷气输出端；夹具主体设置于夹具安装板的设置有气孔的表面上,用于装载检测阶段的摄像模组,其中所述夹具主体包括夹具盖；导热块设置于夹具盖上,并贴合于上述模组,导热块的内部具有中空空间,在导热块的面向夹具安装板的第一侧面上设置有通气孔,分别与中空空间和夹具安装板的多个气孔连通,以及在导热块与第一侧面相对的第二侧面设置有多个气孔,将中空空间内的冷空气导通至检测阶段的摄像模组,以降低检测中摄像模组芯片的温度。(The application provides a module test fixture makes a video recording, include: the clamp mounting plate is provided with a plurality of air holes on at least one surface, an air channel is arranged inside the clamp mounting plate, one end of the air channel is connected to the air holes, and the other end of the air channel is connected to a cold air output end of an external cooling source; the clamp main body is arranged on the surface, provided with the air holes, of the clamp mounting plate and used for loading the camera module in the detection stage, wherein the clamp main body comprises a clamp cover; the heat conduction piece sets up and covers in anchor clamps to laminate in above-mentioned module, the inside of heat conduction piece has the cavity space, is provided with the air vent on the first side of heat conduction piece towards the anchor clamps mounting panel, respectively with the intercommunication of a plurality of gas pockets of cavity space and anchor clamps mounting panel, and be provided with a plurality of gas pockets at the second side that heat conduction piece and first side are relative, switch on the module of making a video recording to the detection stage with the cold air in the cavity space, in order to reduce the temperature of the module chip of making a video recording in the detection.)

1. The utility model provides a module test fixture makes a video recording which characterized in that includes:

the clamp comprises a clamp mounting plate, a plurality of air holes are formed in at least one surface of the clamp mounting plate, and an air channel is formed in the clamp mounting plate, wherein one end of the air channel is connected to the air holes, and the other end of the air channel is connected to the output end of an external cooling source;

the clamp main body is arranged on the surface, provided with the air holes, of the clamp mounting plate and used for loading the camera module in the detection stage, and the clamp main body comprises a clamp cover;

a heat-conducting block arranged on the clamp cover so as to be attached to the camera module in the detection stage, wherein a hollow space is arranged in the heat-conducting block,

wherein vent holes are provided on a first side surface of the heat-conducting block facing the clamp mounting plate, the vent holes being respectively communicated with the hollow space of the heat-conducting block and the plurality of air holes of the clamp mounting plate, an

And a second side surface, opposite to the first side surface, of the heat conduction block is provided with a plurality of air holes, and the air holes are used for conducting cold air in the hollow space to the camera shooting module in the detection stage.

2. The camera module test fixture of claim 1, wherein the aperture of the vent hole provided in the heat-conducting block is adjustable.

3. The camera module test fixture of claim 1, wherein a rotary joint for adjusting the aperture is disposed in the vent.

4. The camera module test fixture of claim 2, further comprising a temperature sensor for monitoring a real-time temperature inside the fixture body, wherein the aperture of the vent is adjusted according to the real-time temperature.

5. The camera module testing fixture of claim 1, wherein a portion of the second side of the heat conducting block is hollowed out and communicated with the hollow space to form a plurality of symmetrically distributed hollowed-out grooves corresponding to an external shape of the camera module.

6. The camera module test fixture of claim 5, further comprising a vent connection for connecting the heat conduction block to the fixture mounting plate.

7. The camera module test fixture of claim 6, wherein the vent connection member is disposed within the vent, the vent connection member having a hollow passage therethrough and having inner and outer sidewalls extending along an axis of the hollow passage, the inner sidewall forming the hollow passage for conducting to a vacuum suction path of the camera module; and

the vent hole connecting piece is arranged in the vent hole of the heat conducting block, so that an external air path is formed by the outer side wall and the inner side wall of the vent hole, and cold air in the air path channel is conducted to the hollow space of the heat conducting block.

8. The camera module test fixture of claim 7, wherein the vent connector is threaded into the vent hole of the thermal block.

9. The camera module test fixture of claim 1, further comprising:

the condensation preventing jig is connected with the condensing device.

10. The camera module test fixture of claim 1, further comprising:

and the camera shooting module fixing block is arranged on the second side surface of the heat conduction block and is positioned right above the heat conduction block so as to fix the camera shooting module in the detection stage.

11. The camera module test fixture of claim 10, further comprising:

the positioning pin is vertically arranged on the surface of the air hole of the fixture mounting plate, and fixes the fixture main body, the heat conduction block and the camera module fixing block in the horizontal direction.

12. The camera module test fixture of claim 1, wherein the fixture cover includes a notch locating surface for seating a strip of sealing rubber and defining a position of the strip of sealing rubber within the fixture cover.

13. The camera module test fixture of claim 1, wherein the thermal block further comprises an edge locating surface for defining a position of the first side of the thermal block for engaging the fixture cover.

14. The camera module test fixture of claim 1, wherein a plurality of air holes are provided in a side surface of the fixture body for exhausting air inside the fixture body.

15. A method for forming the camera module test fixture of any of claims 1-14, the method comprising:

the clamp comprises a clamp mounting plate, a plurality of air holes and an air path channel, wherein the surface of the clamp mounting plate is provided with the air holes, the interior of the clamp mounting plate is provided with the air path channel, one end of the air path channel is connected to the air holes, and the other end of the air path channel is connected to a cold air output end of an external cooling source;

arranging a clamp main body on the surface, provided with the air holes, of the clamp mounting plate, and loading a camera module in a detection stage, wherein the clamp main body comprises a clamp cover;

a heat conducting block with a hollow structure inside is arranged on the clamp cover, so that the clamp cover is attached to the camera module in the detection stage,

wherein the method further comprises:

providing vent holes on a first side of the heat-conducting block facing the clamp mounting plate, the vent holes being in communication with the hollow space and the plurality of air holes, respectively, and

and a plurality of air holes are formed in a second side surface, opposite to the first side surface, of the heat conduction block and used for conducting cold air in the hollow space to the camera shooting module in the detection stage.

16. The method of claim 15, wherein an aperture of the vent hole disposed in the heat-conducting block is adjustable.

17. The method of claim 16, further comprising:

and arranging a temperature sensor to monitor the real-time temperature inside the clamp main body, wherein the aperture of the vent hole is adjusted according to the real-time temperature.

18. The method of claim 15, further comprising:

and hollowing out a part of the second side surface of the heat conduction block and communicating the hollow space to form a plurality of symmetrically distributed hollow grooves corresponding to the external shape of the camera module.

19. The method of claim 15, further comprising:

and a vent hole connecting piece for connecting the heat conducting block and the clamp mounting plate is arranged.

20. The method of claim 19, wherein the step of providing a vent connection for connecting the heat conduction block and the clamp mounting plate comprises:

a hollow passage penetrating through the vent hole connecting piece is formed in the vent hole connecting piece, wherein the vent hole connecting piece is provided with an inner side wall and an outer side wall extending along the axis of the hollow passage, and the inner side wall forms the hollow passage and is used for being communicated to a vacuum suction air passage of the camera module; and

and arranging the vent hole connecting piece in the vent hole of the heat-conducting block so that an external air path is formed by the outer side wall and the inner side wall of the vent hole, and cold air in the air path channel is conducted to the hollow space of the heat-conducting block.

Technical Field

The application relates to the technical field of optical equipment, more specifically relates to a camera module test fixture.

Background

In order to make the module of making a video recording normally work, before the module of making a video recording dispatches from the factory, need pass through a series of verifications, only the module of making a video recording that the inspection reaches the standard, just can be accepted by intelligent terminal producer. When the mobile phone camera module is used for detection, a special fixture (tool) is required to be matched for detection. And, be equipped with special circular telegram system above the frock, when putting into anchor clamps to the camera module, will give the camera module circular telegram, through anchor clamps and detecting system's mutual cooperation, observe each item index data of camera module, just can obtain the module and accord with the detection standard who dispatches from the factory.

The camera module needs to be subjected to multiple tests, focusing, burning (One Time programming), far and near focusing, finished product appearance detection and the like in a test stage, and the module needs to be loaded into a clamp for detection in all the processes. In the process of detecting when the camera module is loaded into the fixture, the camera module is subjected to multiple power-on and power-off processes, which causes the temperature of the camera module to change continuously. As is well known, in the components constituting the camera module, the cost of the photosensitive chip is the highest, and the photosensitive chip is most sensitive to temperature changes, and in the frequent power-on and power-off processes, the performance of the photosensitive chip may be affected by the temperature changes of the camera module, so that the detected camera module does not meet the requirements, and the yield of the product is reduced.

At present, the development of the multi-camera lens is rapid, camera modules are produced in batches, automation equipment is used for batch detection in the detection process, the automation equipment generally sets a preset numerical range in the detection process, detected camera module parameters are determined to be qualified in the range, and if the detected camera module parameters exceed the set range, the detected camera module parameters are determined to be unqualified. In the detection process, the camera module is frequently put in and taken out, so that the temperature inside the photosensitive chip in the camera module is increased, the performance of the camera module is influenced, and the camera module is determined to be unqualified in the detection process. However, in fact, when the temperature is suitable, the partial camera module may also meet the detection standard, if reworking and detecting are performed again, the detection efficiency of the camera module can be obviously affected, and the improvement of the production efficiency of the large-batch camera module is not facilitated.

In view of the above phenomena, there is a technology that can keep the temperature of the photosensitive chip in a relatively fixed range (e.g., 30-40 ℃) during the detection process of the camera module. The main method that its adopted is exactly that supporting a water cooling plant below the anchor clamps of the module of making a video recording, at the in-process that the module of making a video recording detected, let in a certain amount of water for below the anchor clamps to absorb the heat that the module of making a video recording produced, make a video recording the module and can keep in certain temperature range at the in-process that detects, get rid of the bad problem of the module product of making a video recording that causes because temperature variation in the testing process.

Although the method can effectively solve the problem that the test performance of the camera module is influenced by heat generated in the frequent electrifying and powering-off processes of the camera module, the method also has certain defects, for example, the cooling medium is water, and water pumps and other matched equipment are needed, so that the camera module is not easy to clean and maintain; and at present, the production and the manufacture of the camera module are all carried out in a dust-free workshop, the manufacturing cost of the dust-free workshop is higher, and if facilities such as a water pump are added, the cost for manufacturing the camera module is increased.

Disclosure of Invention

The present application provides a camera module test fixture that can at least address or partially address at least one of the above-mentioned shortcomings in the prior art.

This application provides a module test fixture makes a video recording on the one hand, the module test fixture that makes a video recording includes: the clamp comprises a clamp mounting plate, a plurality of air holes are formed in at least one surface of the clamp mounting plate, and an air channel is formed in the clamp mounting plate, wherein one end of the air channel is connected to the air holes, and the other end of the air channel is connected to a cold air output end of an external cooling source; the clamp main body is arranged on the surface, provided with the air holes, of the clamp mounting plate and used for loading the camera module in the detection stage, and the clamp main body comprises a clamp cover; the heat conduction block is arranged on the clamp cover and is attached to the camera module in the detection stage, a hollow space is arranged in the heat conduction block, vent holes are formed in a first side face, facing the clamp mounting plate, of the heat conduction block and are respectively communicated with the hollow space of the heat conduction block and the air holes of the clamp mounting plate, and a plurality of air holes are formed in a second side face, opposite to the first side face, of the heat conduction block and are used for conducting cold air in the hollow space to the camera module in the detection stage.

According to an embodiment of the application, the aperture of the vent hole is adjustable.

According to the embodiment of the application, a rotary joint for adjusting the aperture is arranged in the vent hole.

According to the embodiment of the application, the camera module test fixture further comprises a temperature sensor for monitoring the real-time temperature inside the fixture main body, wherein the aperture of the vent hole is adjusted according to the real-time temperature.

According to the embodiment of the application, a part of the second side surface of the heat conduction block is hollowed out and communicated with the hollow space so as to form a plurality of symmetrically distributed hollowed-out grooves, and the shape of the hollowed-out grooves corresponds to the external shape of the camera module in the detection stage.

According to the embodiment of the application, the camera module test fixture further comprises a vent hole connecting piece for connecting the heat-conducting block and the fixture mounting plate.

According to the embodiment of the application, the vent hole connecting piece is arranged in the vent hole, the vent hole connecting piece is provided with a hollow passage penetrating through the vent hole connecting piece, and is provided with an inner side wall and an outer side wall extending along the axis of the hollow passage, and the inner side wall forms the hollow passage and is used for being communicated with a vacuum suction air passage of the camera module; and the vent hole connecting piece is arranged in the vent hole of the heat conducting block, so that an external air path is also formed by the outer side wall and the inner side wall of the vent hole, and cold air in the air path channel is conducted to the hollow space of the heat conducting block.

According to an embodiment of the present application, the vent hole connector is screwed into the vent hole of the heat conductive block.

According to the embodiment of the application, the camera module test fixture further comprises an anti-condensation jig which is connected with the condensing device.

According to the embodiment of the application, the camera module test fixture further comprises a camera module fixing block which is arranged on the second side face of the heat conducting block and is positioned right above the heat conducting block, so that the camera module is fixed in the detection stage.

According to the embodiment of the application, the camera module test fixture further comprises a positioning pin, wherein the positioning pin is vertically arranged on the surface of the fixture mounting plate, provided with the air hole, and fixes the fixture main body, the heat conduction block and the camera module fixing block in the horizontal direction.

According to an embodiment of the application, the clamp cover comprises a notch locating surface for placing the strip of sealing rubber and defining the position of the strip of sealing rubber within the clamp cover.

According to an embodiment of the present application, the heat conduction block further has an edge positioning surface for defining a position of the first side surface of the heat conduction block to be attached to the jig cover.

According to the embodiment of the application, a plurality of air holes are formed in the side surface of the clamp body and used for exhausting the gas in the clamp body.

Another aspect of the present application further provides a method of forming a camera module test fixture, including: the clamp comprises a clamp mounting plate, a plurality of air holes and an air path channel, wherein the surface of the clamp mounting plate is provided with the air holes, the interior of the clamp mounting plate is provided with the air path channel, one end of the air path channel is connected to the air holes, and the other end of the air path channel is connected to a cold air output end of an external cooling source; arranging a clamp main body on the surface, provided with the air holes, of the clamp mounting plate, and loading a camera module in a detection stage, wherein the clamp main body comprises a clamp cover; arranging a heat-conducting block with a hollow structure inside on the clamp cover, and enabling the heat-conducting block to be attached to the camera module in the detection stage, wherein the method further comprises the following steps: and a plurality of air holes are formed in a second side surface, opposite to the first side surface, of the heat conduction block and used for conducting cold air in the hollow space to the camera module in the detection stage.

According to an embodiment of the present application, the aperture of the vent hole provided to the heat-conductive block is adjustable.

According to an embodiment of the application, the method further comprises: and arranging a temperature sensor to monitor the real-time temperature inside the clamp main body, wherein the aperture of the vent hole is adjusted according to the real-time temperature.

According to an embodiment of the application, the method further comprises: and hollowing out a part of the second side surface of the heat conduction block and communicating the hollow space to form a plurality of symmetrically distributed hollow grooves corresponding to the external shape of the camera module.

According to an embodiment of the application, the method further comprises: and a vent hole connecting piece for connecting the heat conducting block and the clamp mounting plate is arranged.

According to an embodiment of the present application, the step of providing a vent hole connection member for connecting the heat conduction block and the jig mounting plate includes: a hollow passage penetrating through the vent hole connecting piece is formed in the vent hole connecting piece, wherein the vent hole connecting piece is provided with an inner side wall and an outer side wall extending along the axis of the hollow passage, and the inner side wall forms the hollow passage and is used for being communicated to a vacuum suction air passage of the camera module; and arranging the vent hole connecting piece in the vent hole of the heat conducting block so that the outer side wall and the inner side wall of the vent hole form an external air path to conduct cold air in the air path channel to the hollow space of the heat conducting block.

According to at least one scheme in the module test fixture of making a video recording that this application above-mentioned provided, can reach following at least one beneficial effect:

1. when the module is tested, the temperature rises to have great influence on the test, and when the temperature is required to be controlled, the temperature of the module chip can be reduced by selecting the constant-temperature clamp, so that the test passing rate is increased, the test reject ratio is reduced, and the cost is reduced.

2. This application adopts the cold air that the cooling gun generated as cooling medium, adjusts the inside temperature that the module test fixture that makes a video recording was waiting when testing, and the cooling gun uses and obtains out the cold air with compressed air through the method of inside vortex tube separation, so the cold air generation method of this application uses pure mechanical structure separation cold air, and the reliability is high, does not have energy consumption, the energy saving.

3. Through adjusting the aperture of air vent in the heat conduction piece part, the air output of adjustable cold air, and then adjust the cooling effect, accomplish the temperature of the module test fixture of making a video recording controllable.

4. The application provides a constant temperature module test fixture that makes a video recording has corollary equipment few, maintains characteristics such as convenient, simple, low in manufacturing cost.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is an overall structure assembly schematic diagram of a camera module test fixture according to an embodiment of the application;

FIG. 2 is a schematic structural view of a clamp body according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a thermally conductive block according to an embodiment of the present application;

FIG. 4 is a schematic illustration of the position of a vent according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a vent connection according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an anti-dewing fixture according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a camera module fixing block according to an embodiment of the present application; and

fig. 8 is a schematic structural view of a sealing rubber strip according to an embodiment of the present application.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that in this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first mirror discussed below may also be referred to as the second mirror without departing from the teachings of the present application. And vice versa.

In the drawings, the thickness, size and shape of the components have been slightly adjusted for convenience of explanation. The figures are purely diagrammatic and not drawn to scale. As used herein, the terms "approximately", "about" and the like are used as table-approximating terms and not as table-degree terms, and are intended to account for inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art.

It will be further understood that terms such as "comprising," "including," "having," "including," and/or "containing," when used in this specification, are open-ended and not closed-ended, and specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of" appears after a list of listed features, it modifies that entire list of features rather than just individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including engineering and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In addition, unless explicitly defined or contradicted by context, the specific steps included in the methods described herein are not necessarily limited to the order described, but can be performed in any order or in parallel. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Fig. 1 is an overall structural assembly diagram of a camera module test fixture 1000 according to an embodiment of the present application. As shown in fig. 1, the camera module test jig 1000 includes a jig mounting plate 1100, a jig main body 1200, and a heat conduction block 1300.

The jig mounting plate 1100 is mainly used to carry the jig main body 1200 and the heat conduction block 1300. As shown in fig. 1, the clamp mounting plate 1100 may have a generally rectangular parallelepiped shape, by way of example, although the present application is not so limited and any suitable three-dimensional shape may be suitable without departing from the teachings of the present disclosure.

An air passage (not shown) is provided inside the clamp mounting plate 1100, and the air passage may be a conventional air passage for allowing air to pass through the clamp mounting plate 1100.

An air outlet hole 1110 is provided on the upper surface of the jig mounting plate 1100 for carrying the jig main body 1200 and the heat conduction block 1300, and an air inlet hole 1130 is provided on the upper surface or other side surface of the jig mounting plate 1100. For purposes of illustration, the air inlet apertures 1130 are provided on a side of the clamp mounting plate 1100 adjacent to the upper surface on which the air outlet apertures 1110 are provided, but those skilled in the art will appreciate that the air inlet apertures 1130 may be provided elsewhere on the clamp mounting plate 1100 without departing from the teachings of the present application. The inlet holes 1130 and the outlet holes 1110 communicate with the air passage, and in one embodiment, one port of the air passage may be connected to an output end of an external cooling source (not shown) through the inlet holes 1130 to receive cool air output therefrom. The external cold air source is, for example, a cooling gun. The cooling source is taken as a cooling gun for example.

Such as compressed air, is separated by a vortex tube inside the cooling gun to generate cold air, which is output from the output end of the cooling gun and then enters one port of the air passage inside the fixture mounting plate 1100 through the air inlet 1130, thus entering the air passage of the fixture mounting plate 1100; the cool air flowing through the air path channel outputs the cool air to the outside (e.g., the heat conduction block 1300) through the air outlet hole 1110.

In the gas flow path, the gas path channel may be a gas path channel existing in the detection program, or may be designed as needed, for example, a gas path channel required for molding the jig mounting plate 1100 may be integrally formed, or the gas path channel may be formed inside the jig mounting plate 1100 by a suitable processing process after the jig mounting plate 1100 is formed. The air path channel is a part of an air route of the complete cold air flowing in the camera module test fixture 1000, and the cold air can be effectively and continuously input into the heat-conducting block 1300 through the arrangement of the air path channel, so that the camera module in the detection stage is kept in a relatively fixed temperature range and has a stable imaging state.

It should be noted that, in the present embodiment, the number of the air outlet holes 1110 provided on the clamp mounting plate 1100 may be multiple, for example, two, and the multiple air outlet holes 1110 should be symmetrically distributed on the surface of the clamp mounting plate 1100 for carrying the clamp main body 1200 and the heat conduction block 1300. However, it will be understood by those skilled in the art that the number and relative positions of the vents 1110 can be varied to achieve the various results and advantages described herein without departing from the claimed subject matter.

Fig. 2 is a schematic structural view of a jig main body according to an embodiment of the present application. Referring to fig. 1 and 2, a jig main body 1200 is provided on an upper surface 1120 of the jig mounting plate 1100 for loading a camera module at a stage of inspection. In an embodiment of the present application, the clamp body 1200 includes two clamp covers, for example, an upper cover 1210 and a lower cover 1220 as shown in fig. 2. However, the present application is not so limited and any number of clamp covers may be suitable without departing from the teachings of the present disclosure. For convenience, the following description will be given taking as an example a jig main body including an upper cover 1210 and a lower cover 1220.

The clamp body 1200 may further include a motion control mechanism (not shown) that may control the upper cover 1210 and the lower cover 1220 to be closed or opened with respect to each other. The motion control mechanism may be a hinge mechanism or a moving handle adjustment rotation mechanism or other similar mechanism. However, it will be appreciated by those skilled in the art that the motion control mechanisms of the upper cover 1210 and the lower cover 1220 may be modified to achieve the various results and advantages described herein without departing from the claimed subject matter.

In the present embodiment, the jig main body 1200 may be fixed to the upper surface 1120 of the jig mounting plate 1100 using bolts. However, it will be appreciated by those skilled in the art that the manner of securing between the clamp body 1200 and the upper surface 1120 of the clamp mounting plate 1100 may be varied without departing from the claimed subject matter to obtain the various results and advantages described herein.

The heat conduction block 1300 is disposed on the lower cover 1220 of the fixture main body 1200 and is located right below the camera module in the detection stage. The interior of the heat conductive block 1300 is hollow. The upper surface 1330 of the thermal conductive mass 1300 is closely attached to the camera module at the detection stage.

Fig. 3 is a schematic structural view of a heat conduction block 1300 according to an embodiment of the present application; and fig. 4 is a schematic view of the position of a vent according to an embodiment of the present application.

As shown in fig. 3, a plurality of air holes 1331 and air suction holes 1332 are provided on an upper surface 1330 of a heat conductive block 1300; as shown in fig. 3, a vent hole 1320 is provided on a lower surface 1350 of the heat conductive block 1300.

The suction hole 1332 is a port of a vacuum suction gas path used by the camera module in the detection stage, and the vacuum suction gas path is used for sucking the camera module in the detection stage, so that the camera module is prevented from displacing in the detection process. The vent holes 1320 are used to allow cool air to enter the hollow space of the heat conductive block 1300; the plurality of air holes 1331 are outlet holes of the cool air in the hollow space.

At the detection stage, the lower terminal surface of the module of making a video recording needs the upper surface 1330 of the heat conduction piece 1300 of closely laminating to the heat that conveniently will produce is taken away by the cold air in the heat conduction piece 1300.

Therefore, in this embodiment, the heat-conducting block 1300 may be made of an aluminum alloy 6061 that has good heat-conducting performance and is easy to process, so as to ensure the flatness and roughness of the upper surface 1330 thereof, thereby ensuring that the camera module can be tightly attached to the upper surface 1330 of the heat-conducting block 1300. However, it will be appreciated by those skilled in the art that the upper surface 1330 of the thermal mass 1300 may be selected from different materials for practical applications without departing from the spirit of the claimed invention to achieve the various results and advantages described herein.

In the cooling operation of the camera module at the actual inspection stage, the air hole 1110 of the jig mounting plate 1100 is connected to the air vent 1320 of the heat conduction block 1300 for introducing cold air into the inner hollow space of the heat conduction block 1300; the cold air of the inside hollow space of heat conduction piece 1300 passes through the module of making a video recording of a plurality of gas pockets 1331 direct contact detection stage, through the mode of forced convection, will make a video recording the module and take away because the heat that frequent circular telegram and outage produced in the detection stage.

Specifically, referring to fig. 1, after the compressed air is separated from the cold air by the vortex tube inside the cooling gun (not shown), the cold air enters the air passage channel inside the clamp mounting plate 1100, and is guided into the hollow space of the heat conduction block 1300 through the path formed by the air holes 1110 and the air holes 1320, the cold air in the space passes through the air holes 1331 on the upper surface of the heat conduction block 1300 and is blown to the camera module in the detection stage, and by adopting a forced convection method, the heat generated by the camera module performing detection in the clamp main body 1200 can be taken away, and the generated hot air can be discharged from the air holes on the side surface of the clamp main body 1200, so as to form a complete air flowing air passage. The temperature of the camera module in the detection stage is reduced, so that the temperature of the photosensitive chip and other components inside the camera module is kept in a stable temperature range, the camera module in the detection stage can keep a better imaging state, and the efficiency of module detection is effectively improved.

The air holes on the side surface of the main body 1200 may be one or more according to actual requirements, and are used for exhausting hot air generated in the cooling process of the camera module at the detection stage in the main body 1200.

Referring to fig. 1 and 4, in an embodiment of the present application, a heat conduction block 1300 is disposed on the lower cover 1220 of the fixture main body 1200 and is located right below the camera module in the detection stage, and specifically, in the detection stage, an edge positioning surface 1340 of the heat conduction block 1300 may be closely attached to a portion of the upper surface 1221 of the lower cover 1220 of the fixture main body 1200, which is located right below the camera module. The edge positioning surface 1340 of the heat conduction block 1300 is a portion of the lower surface 1350 of the heat conduction block 1300 near the edge, which may not include the portion provided with the vent 1320.

The vent holes 1320 in the thermal block 1300 can be adjusted to have a different aperture size, thereby changing the flow rate of the cooling air flowing through the vent holes 1320. For example, an automatic rotary joint can be arranged in the vent 1320, the automatic rotary joint comprises a connector and a bearing body which are in threaded fit with each other, the bearing body is a tubular part, the interior of the bearing body is hollow, the inner diameter of the bearing body is the maximum aperture of the vent 1320, the end part of the connector is a fan-shaped cover plate, the size of the fan-shaped cover plate can be changed by rotating threads, the area of an interface surface between the connector and the bearing body is further controlled, and the operation of adjusting the aperture of the vent 1320 can be realized. However, it will be appreciated by those skilled in the art that the varying aperture size of the vent 1320 can be accomplished in different ways as desired without departing from the claimed subject matter to achieve the results and advantages described herein.

The vent 1320 can change the size of the aperture according to the cooling time required by the camera module in the detection stage. Therefore, the cooling device can be used for adjusting the flow of cold air, controlling the temperature inside the clamp body 1200 and realizing the required cooling effect.

Meanwhile, the required cooling time can be calculated according to the actual requirement of the camera module in the detection stage, the relation between the aperture of the vent 1320 and the temperature inside the clamp main body 1200 is directly displayed on the camera module test clamp 1000, or an early warning line can be set (for example, a temperature sensor (not shown) is directly mounted on the camera module test clamp 1000, the temperature inside the clamp main body 1200 is monitored in real time), when the temperature of the chip of the camera module in the detection stage exceeds a certain threshold value, an alarm is given to remind, and the flow of cold air is adjusted by adjusting the aperture of the vent 1320 again, so that the temperature of the photosensitive chip of the camera module in the mold detection stage meets the test requirement again. Other transmission means for adjusting the aperture of the vent 1320 according to the temperature detected by the temperature sensor may be implemented by any means known in the art, and thus will not be described herein.

Fig. 5 is a schematic structural view of a vent connection according to an embodiment of the present application. Optionally, in the above-described embodiment of the present application, a vent connection 1321 may be further added to the overall structure of the camera module test fixture 1000 to connect the heat conduction block 1300 and the fixture mounting plate 1100.

The vent hole connector 1321 has a hollow passage penetrating through it, and has an inner side wall 1321a and an outer side wall 1321b extending along the axis of the hollow passage, the inner side wall 1321a forms the hollow passage for conducting to the vacuum suction path of the camera module; the vent connection 1321 is disposed in the vent 1320 of the heat conductive block 1300 such that the outer sidewall 1321b and the inner sidewall of the vent 1320 also form an external air path to conduct the cold air in the air path channel to the hollow space of the heat conductive block 1300.

In the actual cooling operation of the camera module at the detection stage, the air holes 1110 of the jig mounting plate 1100 are connected to the air holes 1320 of the heat conduction block 1300, and when the air hole connectors 1321 are installed in the air holes 1320, cool air is introduced into the inner hollow space of the heat conduction block 1300 through the air hole connectors 1321; the cold air rethread of the inside hollow space of heat conduction piece 1300 direct contact detection stage's the module of making a video recording, through the mode of forced convection, the module of making a video recording is taken away because the heat that frequent circular telegram and outage produced in the detection stage.

Therefore, the vent connection component 1321 is mainly used for conducting cold air to the inner hollow space of the heat conduction block 1300, so as to realize temperature adjustment of the camera module in the detection stage; and as mentioned above, the vent connection 1321 can also isolate and detect two sets of gas circuits that the module of making a video recording in the procedure is correlated with, inhale the cold air gas circuit that vacuum gas circuit and this application embodiment played the cooling effect. The vent connection 1321 is disposed inside the vent 1320, and the two sets of air passages can be completely isolated from each other without interfering with each other under the action of the vent connection 1321.

In an embodiment of the present application, the vent connection 1321 may be coupled to the vent 1320 of the thermal block 1300 by, for example, a screw thread. The vent connector 1321 may be made of, for example, 304 stainless steel to ensure smooth assembly of the vent connector 1321 and its associated components. However, it will be appreciated by those skilled in the art that the material from which the vent connector 1321 is made can be varied to achieve the various results and advantages described herein without departing from the claimed technology.

Fig. 6 is a schematic structural view of the dewing prevention jig according to the embodiment of the present application. As shown in fig. 6, optionally, in another embodiment of the present application, a dewing prevention fixture 1600 may be further added to the overall structure of the camera module test fixture 1000. Which is connected to an external condensing unit and disposed obliquely above the camera module test fixture 1000. In this embodiment, the external condensing equipment can be the condensation rifle, and antisweat tool 1600 just can set up a plurality of circular apertures on the side surface of making a video recording module test fixture 1000, and after the steam of switch-on condensation rifle, antisweat tool 1600 blows the surface of anchor clamps main part 1200 with steam through a plurality of circular apertures in the structure. The above operation can effectively prevent the dewing phenomenon caused by the temperature difference of the clamp main body 1200 when the hot air released through the air hole is scattered around the clamp main body 1200 in the process of cooling the camera module in the detection procedure. Moreover, it will be understood by those skilled in the art that one or more sets of anti-condensation fixtures 1600 may be disposed obliquely above the camera module test fixture 1000 to achieve the various results and advantages described herein, depending on the actual anti-condensation effect, without departing from the claimed subject matter.

Fig. 7 is a schematic structural diagram of a camera module fixing block according to an embodiment of the present application. Optionally, in another embodiment of the present application, a camera module fixing block 1400 as shown in fig. 7 may be further added to the overall structure of the camera module testing fixture 1000.

The camera module fixing block 1400 is mainly used for fixing and limiting, and the camera module in the detection process can be fixed on the upper surface 1330 of the heat-conducting block 1300 in a conventional manner such as a screw and the like, and the camera module fixing block 1400 is located right above the heat-conducting block 1300. However, it will be understood by those skilled in the art that the fixing manner between the camera module fixing block 1400 and the upper surface 1330 of the heat-conducting block 1300 can be chosen according to the requirements of practical applications to obtain the various results and advantages described in the present specification without departing from the technical solution claimed in the present application.

Fig. 8 is a schematic structural view of a sealing rubber strip according to an embodiment of the present application. Optionally, in another embodiment of the present application, a sealing rubber strip 1500 with various structures as shown in fig. 8 may be further added to the overall structure of the camera module testing fixture 1000.

The sealing rubber strip 1500 is mainly used to seal a gap inevitably generated at a joint between the upper cover 1210 and the lower cover 1220 of the jig main body 1200 when closed. The sealing rubber strip 1500 can be placed and defined at the position of the upper cover 1210 by providing a groove at the edge position of the upper cover 1210 of the jig main body 1200. For example, a desired groove may be integrally formed when the upper cover 1210 of the jig main body 1200 is molded, or a groove satisfying the need may be provided on the inner surface of the upper cover 1210 of the jig main body 1200 by a suitable machining process after the upper cover 1210 of the jig main body 1200 is formed.

The strip 1500 may be installed in the positioning surface 1211 defined by the groove such that the strip 1500 is fixed in the upper cover 1210 of the jig main body 1200.

Alternatively, in another embodiment of the present application, a positioning pin (not shown) may be further added to the overall structure of the camera module test fixture 1000, and the positioning pin is vertically disposed on the upper surface 1120 of the fixture mounting plate 1100, and may fix the fixture main body 1200, the heat conduction block 1300, and the camera module fixing block 1400 in a horizontal position. For example, the heat conduction block 1300 is vertically limited by the positioning surface 1340 at the edge being closely attached to the upper surface 1221 of the lower cover 1220 of the fixture main body 1200, and the positioning pin is vertically disposed on the upper surface 1120 of the fixture mounting plate 1100 and is connected and fixed to the heat conduction block 1300 in the horizontal direction, so that the horizontal direction limitation of the heat conduction block 1300 can be realized; the camera module fixing block 1400 is fixed to the upper surface 1330 of the heat-conducting block 1300 by screws and positioning pins vertically arranged on the upper surface 1120 of the clamp mounting plate 1100, so that horizontal direction limiting can be realized; the clamp main body 1200 is fixed to the upper surface 1120 of the clamp mounting plate 1100 by bolts, and the clamp main body 1200 is connected and fixed in the horizontal direction by positioning pins vertically arranged on the upper surface 1120 of the clamp mounting plate 1100, that is, the horizontal direction of the clamp main body 1200 is limited.

Referring to fig. 3 again, in the present embodiment, a part of the surface of the upper surface 1330 of the heat-conducting block 1300 is hollow and is communicated with the hollow space therein to form a hollow groove 1360. For example, a hollow groove may be integrally formed when the heat conduction block 1300 is molded, or after the heat conduction block 1300 is formed, a part of the surface of the upper surface 1330 of the heat conduction block 1300 may be hollowed by a suitable processing process and communicate with the hollow space inside.

As shown in fig. 3, in the present embodiment, four symmetrically distributed hollow grooves 1360 are formed, and the overall arrangement of the four hollow grooves 1360 corresponds to the shape of the camera module in the detection stage. This kind of design makes things convenient for the module of making a video recording in the cold air contact detection procedure promptly, is favorable to absorbing the cold air behind the heat again from the module of making a video recording evenly spread all around.

The four hollowed-out grooves 1360 on the upper surface of the heat conduction block 1300 are symmetrically distributed, and can correspond to the upper surface of the structure of the camera module in the detection process, and the positions of the hollowed-out grooves are just mapped to the periphery of the photosensitive chip of the camera module in the detection process, so that the photosensitive chip in the detection process can be uniformly cooled.

The above description is only an embodiment of the present application and an illustration of the technical principles applied. It will be appreciated by a person skilled in the art that the scope of protection covered by the present application is not limited to the embodiments with a specific combination of the features described above, but also covers other embodiments with any combination of the features described above or their equivalents without departing from the technical idea. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.