Volume resistivity detection device of organic silica gel for electronic device encapsulation

Abstract

The utility model relates to the technical field of electronic device potting, and discloses a volume resistivity detection device of organic silica gel for electronic device potting, a storage box is arranged on the front side of the top of a fixing table, a clamping mechanism is arranged at the bottom of the fixing table, a rotation detection mechanism is arranged at the back end of the top of the fixing table, and the rotation detection mechanism is connected with the storage box. A detector is arranged on the front face of the rotation detection mechanism, the rotation detection mechanism comprises a rotation assembly and a detection assembly, the rotation assembly is arranged at the back end of the top of the fixed table, the detection assembly is arranged on the right side of the bottom of the rotation assembly, the rotation assembly comprises a supporting frame, and the supporting frame is fixedly connected to the back end of the bottom of the fixed table. According to the utility model, an organic silicon gel sample can be stirred before detection, so that the problems that the components of the organic silicon gel are possibly non-uniform and bubbles appear in the organic gel are effectively solved, the consistency of the characteristics of the sample is ensured when the volume resistivity is measured, and the accuracy of a measurement result is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic device potting technology, specifically to a volume resistivity detection device for organosilicon gel used in electronic device potting. Background Technology

[0002] Encapsulation technology for electronic devices is a key process that improves their mechanical strength, insulation properties, and environmental resistance by encapsulating electronic components in specific materials. Silicone gels are a preferred material for electronic device encapsulation due to their excellent electrical insulation, high-temperature resistance, and flexibility. However, the performance of silicone gels directly affects the reliability and lifespan of electronic devices; therefore, accurate measurement of their volume resistivity is crucial.

[0003] Chinese utility model patent CN 215179858 U discloses a volume resistivity testing device for silicone gel used in the potting of electronic devices. A first electrode block, a second electrode block, and a fixing block form a rectangular hole. A pad is placed at the bottom of the electrode assembly, sealing the lower opening of the rectangular hole and forming a cuboid receiving groove. Fluid silicone gel is injected and then solidifies into a cuboid shape. This testing device provides more accurate results. While the device allows air to escape from the silicone gel through gaps in the pad, when the silicone gel has a high viscosity, air cannot escape, causing inaccuracies in the calculated volume resistivity. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a volume resistivity detection device for silicone gel used in the potting of electronic devices, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a volume resistivity detection device for silicone gel used in potting electronic devices, comprising a fixed stage, a storage box provided on the top front of the fixed stage, a clamping mechanism provided at the bottom of the fixed stage, a rotation detection mechanism provided at the top back of the fixed stage, and a detector provided on the front of the rotation detection mechanism.

[0006] The rotation detection mechanism includes a rotation component and a detection component. The rotation component is disposed at the top back end of the fixed platform, and the detection component is disposed at the bottom right side of the rotation component.

[0007] The rotating assembly includes a support frame, which is fixedly connected to the bottom back end of the fixed platform. A first motor is fixedly connected to the bottom of the support frame. A worm gear is fixedly connected to the right side of the first motor. A worm wheel meshes with the back end of the worm gear. A rotating rod is fixedly connected to the inner side of the worm wheel. The bottom of the rotating rod is rotatably connected to the bottom of the support frame. A rotating bracket is fixedly connected to the top of the rotating rod. A support member is fixedly connected to the outer periphery of the bottom of the rotating bracket. A first electric push rod is fixedly connected to the top left side of the rotating bracket. A connecting frame is fixedly connected to the bottom of the first electric push rod. A limit rod is fixedly connected to the top of the connecting frame. A drive motor is fixedly connected to the inner side of the connecting frame. A rotating shaft is fixedly connected to the bottom of the drive motor. A stirring rod is fixedly connected to the outer periphery of the rotating shaft.

[0008] Preferably, the inner side of the fixed platform is provided with a groove corresponding to the movement trajectory of the support member, and the support member is slidably connected inside the groove. The groove can limit the movement of the support member, and the support member can support the rotating frame.

[0009] Preferably, there are two limiting rods, which are fixedly connected to the front and rear sides of the top of the connecting frame, and are slidably connected to the inner side of the rotating frame. The limiting rods can limit the connecting frame, making the connecting frame more stable during the lifting process.

[0010] Preferably, the detection assembly includes a second electric push rod, which is fixedly connected to the top right side of the support frame. A hollow plate is fixedly connected to the bottom of the second electric push rod, and a guide rod is fixedly connected to the top of the hollow plate. A second motor is fixedly connected to the front of the hollow plate, and a bidirectional threaded rod is fixedly connected to the output end of the second motor. The bidirectional threaded rod is rotatably connected to the inner side of the hollow plate, and a threaded plate is threadedly connected to the outer periphery of the bidirectional threaded rod. An electrode plate is fixedly connected to the bottom of the threaded plate, and a transmission line passes through the inner side of the threaded plate. The transmission line is fixedly connected to the top of the electrode plate, and the left side of the transmission line is inserted into the front of the detector.

[0011] Preferably, the hollow plate has a limiting groove on its inner side that corresponds to the movement trajectory of the threaded plate, and the threaded plate is slidably connected inside the limiting groove. The limiting groove can limit the movement of the threaded plate, making the threaded plate more stable during movement.

[0012] Preferably, there are two guide rods, which are fixedly connected to the front and rear sides of the top of the hollow plate respectively. The guide rods can guide the hollow plate and make it more stable during the lifting and lowering process.

[0013] Preferably, a circular hole corresponding to the position of the guide rod is provided on the right side of the rotating frame, and the guide rod is slidably connected to the inside of the circular hole, so that the guide rod can slide inside the rotating frame through the circular hole.

[0014] Preferably, the clamping mechanism includes a cylinder, which is fixedly connected to the right side of the fixed platform. A rack is fixedly connected to the left side of the cylinder. The rack is slidably connected to the inner side of the fixed platform. A gear meshes with the inner side of the rack. A linkage rod is fixedly connected to the inner side of the gear. A fixed frame is rotatably connected to the bottom of the linkage rod. The fixed frame is fixedly connected to the bottom of the fixed platform. The top of the linkage rod is rotatably connected to the bottom of the fixed platform. A clamping plate is fixedly connected to the top of the rack.

[0015] Preferably, the clamp is disposed on the outside of the storage box, and the inner side of the clamp is in close contact with the outside of the storage box. The clamp can hold and fix the storage box, making it convenient for the device to replace the storage box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a rotating assembly, the first motor drives the worm gear and worm wheel, which in turn rotates the rotating rod and rotating frame. The drive motor drives the rotating shaft and stirring rod to rotate, which can stir the organosilicon gel sample. This solves the problem of potentially uneven composition of organosilicon gel and the problem of air bubbles inside the organosilicon gel. It makes the sample characteristics consistent when measuring volume resistivity, thereby improving the accuracy of the measurement results. The second electric push rod can adjust the height of the hollow plate and electrode sheet to adapt to organosilicon gel samples of different thicknesses, improving the versatility of the device. Whether it is thinner organosilicon gel for electronic chip encapsulation or thicker encapsulation material for large electronic devices, accurate detection can be achieved by adjusting the position of the electrode sheet.

[0018] 2. The clamping mechanism uses a cylinder to push a rack, which in turn drives the gear and linkage rod to rotate, so that the clamping plate clamps and fixes the storage box, ensuring the stability of the organosilicon gel sample and creating favorable conditions for accurate measurement of volume resistivity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2This is a schematic diagram of the rotation detection mechanism;

[0022] Figure 3 This is a schematic diagram of the rotating assembly.

[0023] Figure 4 This is a schematic diagram of the detection component.

[0024] Figure 5 This is a schematic diagram of the clamping mechanism.

[0025] Figure 6 This is a schematic diagram of a bidirectional threaded rod and a threaded plate.

[0026] In the diagram: 1. Fixed platform; 2. Storage box; 3. Detector; 4. Rotation detection mechanism; 41. Rotation assembly; 411. First motor; 412. Worm gear; 413. Support component; 414. Stirring rod; 415. Rotating shaft; 416. Connecting frame; 417. First electric push rod; 418. Limiting rod; 419. Rotating frame; 4191. Drive motor; 4192. Rotating rod; 4193. Support frame; 4194. Worm gear; 42. Detection assembly; 421. Second motor; 422. Guide rod; 423. Second electric push rod; 424. Hollow plate; 425. Threaded plate; 426. Electrode plate; 427. Transmission line; 428. Bidirectional threaded rod; 5. Clamping mechanism; 51. Clamping plate; 52. Cylinder; 53. Linkage rod; 54. Gear; 55. Rack; 56. Fixed frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution:

[0030] Example 1

[0031] Please see Figure 1-6 This utility model provides a technical solution: a volume resistivity detection device for silicone gel used in potting electronic devices, including a fixed platform 1, a storage box 2 is provided on the top front of the fixed platform 1, a clamping mechanism 5 is provided on the bottom of the fixed platform 1, a rotating detection mechanism 4 is provided on the top back of the fixed platform 1, and a detector 3 is provided on the front of the rotating detection mechanism 4.

[0032] The rotation detection mechanism 4 includes a rotation component 41 and a detection component 42. The rotation component 41 is disposed on the top back end of the fixed platform 1, and the detection component 42 is disposed on the bottom right side of the rotation component 41.

[0033] The rotating assembly 41 includes a support frame 4193, which is fixedly connected to the bottom back end of the fixed platform 1. A first motor 411 is fixedly connected to the bottom of the support frame 4193. A worm gear 4194 is fixedly connected to the right side of the first motor 411. A worm wheel 412 meshes with the back end of the worm gear 4194. A rotating rod 4192 is fixedly connected to the inner side of the worm wheel 412. The bottom of the rotating rod 4192 is rotatably connected to the bottom of the support frame 4193. A rotating frame 419 is fixedly connected to the top of the rotating rod 4192. A support member 413 is fixedly connected to the bottom periphery of the rotating frame 419. A first electric push rod 417 is fixedly connected to the top left side of the rotating frame 419. A connecting frame 416 is fixedly connected to the bottom of the first electric push rod 417. A limit rod 418 is fixedly connected to the top of the connecting frame 416. A drive motor 4191 is fixedly connected to the inner side of the connecting frame 416. A rotating shaft 415 is fixedly connected to the bottom of the drive motor 4191. A stirring rod 414 is fixedly connected to the periphery of the rotating shaft 415.

[0034] Furthermore, the inner side of the fixed platform 1 is provided with a sliding groove corresponding to the movement trajectory of the support member 413, and the support member 413 is slidably connected inside the sliding groove. The sliding groove can limit the position of the support member 413, and the support member 413 can support the rotating frame 419.

[0035] Furthermore, there are two limit rods 418. The two limit rods 418 are fixedly connected to the front and rear sides of the top of the connecting frame 416, and the two limit rods 418 are slidably connected to the inner side of the rotating frame 419. The limit rods 418 can limit the connecting frame 416, making the connecting frame 416 more stable during the lifting and lowering process.

[0036] Example 2

[0037] Please see Figure 1-6Furthermore, based on Embodiment 1, the detection component 42 further includes a second electric push rod 423, which is fixedly connected to the top right side of the support frame 4193. A hollow plate 424 is fixedly connected to the bottom of the second electric push rod 423, and a guide rod 422 is fixedly connected to the top of the hollow plate 424. A second motor 421 is fixedly connected to the front of the hollow plate 424, and a bidirectional threaded rod 428 is fixedly connected to the output end of the second motor 421. The bidirectional threaded rod 428 is rotatably connected to the inner side of the hollow plate 424, and a threaded plate 425 is threadedly connected to the outer periphery of the bidirectional threaded rod 428. An electrode plate 426 is fixedly connected to the bottom of the threaded plate 425, and a transmission line 427 passes through the inner side of the threaded plate 425. The transmission line 427 is fixedly connected to the top of the electrode plate 426, and the left side of the transmission line 427 is inserted into the front of the detector 3.

[0038] Furthermore, a limiting groove corresponding to the movement trajectory of the threaded plate 425 is provided on the inner side of the hollow plate 424, and the threaded plate 425 is slidably connected inside the limiting groove. The limiting groove can limit the movement of the threaded plate 425, making the threaded plate 425 more stable during movement.

[0039] Furthermore, there are two guide rods 422, which are fixedly connected to the front and rear sides of the top of the hollow plate 424 respectively. The guide rods 422 can guide the hollow plate 424, making the hollow plate 424 more stable during the lifting and lowering process.

[0040] Furthermore, a circular hole corresponding to the position of the guide rod 422 is provided on the right side of the rotating frame 419, and the guide rod 422 is slidably connected to the inside of the circular hole. Through the circular hole, the guide rod 422 can slide inside the rotating frame 419.

[0041] Example 3

[0042] Please see Figure 1-6 Furthermore, based on Embodiment 1, the clamping mechanism 5 further includes a cylinder 52, which is fixedly connected to the right side of the fixed platform 1. A rack 55 is fixedly connected to the left side of the cylinder 52. The rack 55 is slidably connected to the inner side of the fixed platform 1. A gear 54 meshes with the inner side of the rack 55. A linkage rod 53 is fixedly connected to the inner side of the gear 54. A fixed frame 56 is rotatably connected to the bottom of the linkage rod 53. The fixed frame 56 is fixedly connected to the bottom of the fixed platform 1. The top of the linkage rod 53 is rotatably connected to the bottom of the fixed platform 1. A clamping plate 51 is fixedly connected to the top of the rack 55.

[0043] Furthermore, the clamp 51 is disposed on the outside of the storage box 2, and the inner side of the clamp 51 is in contact with the outer side of the storage box 2. The clamp 51 can clamp and fix the storage box 2, making it convenient to replace the storage box 2.

[0044] In actual operation, when this device is used, the storage box 2 is placed on the top of the fixed platform 1, the cylinder 52 is turned on, and the cylinder 52 pushes the rack 55 to move, so that the rack 55 drives the clamping plate 51 to clamp the storage box 2, and the silicone gel is poured into the storage box 2. The first motor 411 is turned on, so that the first motor 411 drives the worm wheel 412 to rotate through the worm gear 4194, so that the worm wheel 412 drives the rotating frame 419 to rotate through the rotating rod 4192, so that the rotating frame 419 rotates to the right, so that the stirring rod 414 rotates to the top of the storage box 2. The first electric push rod 417 is turned on, so that the first electric push rod 417 drives the connecting frame 416 and the drive motor 4191 to move downward. The drive motor 4191 is turned on, so that the drive motor 4191 drives the stirring rod 414 to rotate through the rotating shaft 415, so that the stirring rod 414 can stir the silicone gel inside the storage box 2, so that the air inside the silicone gel can be discharged.

[0045] When it is necessary to measure the resistivity after potting electronic devices, the first motor 411 is turned on and reversed. The first motor 411 drives the worm gear 412 to reverse through the worm 4194, causing the rotating frame 419 to drive the hollow plate 424 to rotate. The hollow plate 424 rotates to the top of the storage box 2. The second motor 421 is turned on and drives the threaded plate 425 and electrode plate 426 to move through the bidirectional threaded rod 428, so that the electrode plate 426 can be moved to the appropriate position. The second electric push rod 423 is turned on and drives the hollow plate 424 to move downward, so that the two electrode plates 426 can be moved to both sides of the electronic device to measure the resistivity of the silicone gel. The resistivity can be viewed through the detector 3. The detector 3 model is Agilent Keysight 34461A.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A device for detecting the volume resistivity of silicone gels for potting electronic devices, comprising a fixed stage (1), characterised in that: The fixed table (1) top front is provided with a storage box (2), the fixed table (1) bottom is provided with a clamping mechanism (5), the fixed table (1) top back is provided with a rotation detection mechanism (4), the rotation detection mechanism (4) front is provided with a detector (3); The rotation detection mechanism (4) includes a rotating assembly (41) and a detection assembly (42), the rotating assembly (41) is arranged at the top back of the fixed table (1), and the detection assembly (42) is arranged at the bottom right side of the rotating assembly (41); The rotating assembly (41) includes a support frame (4193), the support frame (4193) is fixedly connected to the bottom back of the fixed table (1), the first motor (411) is fixedly connected to the inner bottom of the support frame (4193), the worm (4194) is fixedly connected to the right side of the first motor (411), the worm wheel (412) is engaged with the back end of the worm (4194), the rotating rod (4192) is fixedly connected to the inner side of the worm wheel (412), the rotating rod (4192) is rotatably connected to the inner bottom of the support frame (4193), the rotating frame (419) is fixedly connected to the top of the rotating rod (4192), the support piece (413) is fixedly connected to the bottom periphery of the rotating frame (419), the first electric push rod (417) is fixedly connected to the left side of the inner top of the rotating frame (419), the connecting frame (416) is fixedly connected to the bottom of the first electric push rod (417), the limiting rod (418) is fixedly connected to the top of the connecting frame (416), the drive motor (4191) is fixedly connected to the inner side of the connecting frame (416), the rotating shaft (415) is fixedly connected to the bottom of the drive motor (4191), and the stirring rod (414) is fixedly connected to the periphery of the rotating shaft (415).

2. A device for measuring the volume resistivity of silicone gel for potting electronic devices according to claim 1, characterized in that: The inner side of the fixed table (1) is provided with a sliding groove corresponding to the movement track of the support piece (413), and the support piece (413) is slidably connected in the sliding groove.

3. A device for measuring volume resistivity of silicone gel for potting electronic devices according to claim 1, characterized in that: The limiting rod (418) has two, two limiting rods (418) are fixedly connected to the top of the connecting frame (416) on the front and back sides, and two limiting rods (418) are slidably connected to the inner side of the rotating frame (419).

4. The apparatus according to claim 1, wherein the apparatus is characterized by: The detection assembly (42) comprises a second electric push rod (423) fixedly connected to the inner top right side of the support frame (4193), a hollow plate (424) fixedly connected to the bottom of the second electric push rod (423), a guide rod (422) fixedly connected to the top of the hollow plate (424), a second motor (421) fixedly connected to the front of the hollow plate (424), a bidirectional threaded rod (428) fixedly connected to the output end of the second motor (421), the bidirectional threaded rod (428) being rotatably connected to the inner side of the hollow plate (424), a threaded plate (425) threadedly connected to the periphery of the bidirectional threaded rod (428), an electrode sheet (426) fixedly connected to the bottom of the threaded plate (425), a transmission line (427) penetrating through the inner side of the threaded plate (425) and fixedly connected to the top of the electrode sheet (426), and the transmission line (427) being inserted into the front of the detector (3).

5. A device for measuring the volume resistivity of silicone gel for encapsulating electronic devices according to claim 4, characterized in that: The inner side of the hollow plate (424) is provided with a limiting groove corresponding to the motion trail of the threaded plate (425), and the threaded plate (425) is slidably connected in the limiting groove.

6. A device for measuring volume resistivity of silicone gel for potting electronic devices according to claim 4, characterized in that: The guide rod (422) has two guide rods (422) fixedly connected to the top of the hollow plate (424) on the front and back sides.

7. A device for measuring volume resistivity of silicone gel for potting electronic devices according to claim 4, characterized in that: The right side of the rotating frame (419) is provided with a circular hole corresponding to the position of the guide rod (422), and the guide rod (422) is slidably connected to the inner side of the circular hole.

8. A device for measuring volume resistivity of silicone gel for potting electronic devices according to claim 1, characterized in that: The clamping mechanism (5) comprises a gas cylinder (52) fixedly connected to the right side of the fixed table (1), a rack (55) fixedly connected to the left side of the gas cylinder (52), the rack (55) being slidably connected to the inner side of the fixed table (1), a gear (54) engaged with the inner side of the rack (55), a linkage rod (53) fixedly connected to the inner side of the gear (54), a fixed frame (56) rotatably connected to the bottom of the linkage rod (53), the fixed frame (56) being fixedly connected to the bottom of the fixed table (1), the linkage rod (53) being rotatably connected to the bottom of the fixed table (1), and a clamping plate (51) fixedly connected to the top of the rack (55).

9. A device for measuring the volume resistivity of silicone gel for encapsulating electronic devices according to claim 8, characterized in that: The clamping plate (51) is arranged on the outer side of the storage box (2), and the inner side of the clamping plate (51) is attached to the outer side of the storage box (2).

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