High-thermal-conductivity and high-electric-conductivity silver adhesive preparation device for LED die bonding

Abstract

The utility model relates to the technical field of silver adhesive preparation, and discloses a high-thermal-conductivity and high-electric-conductivity silver adhesive preparation device for LED die bonding, which comprises a kettle body, a kettle cover is fixedly connected onto the kettle body, and a stirring mechanism is arranged in the kettle body. According to the reaction kettle, the first motor is started to drive the rotating shaft to rotate, so that the fixing plate rotates, and the first gear and the second gear rotate along the inner gear ring, so that the first stirring shaft and the second stirring shaft are driven to rotate respectively, and the first stirring blade and the second stirring blade stir raw materials in the kettle body; the first stirring blades and the second stirring blades are arranged in a staggered and crossed manner, so that raw materials are mixed more thoroughly, and meanwhile, the first stirring shaft and the second stirring shaft are driven to do circular motion in the kettle body due to rotation of the fixed plate, so that the stirring blades perform circular rotation stirring in the kettle body; the mixing and stirring efficiency of the silver colloid raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silver paste preparation, in particular to a device for preparing high-thermal and high-electrical conductivity silver paste for LED solid crystal bonding. Background Art

[0002] LEDs are solid-state semiconductor devices that directly convert electricity into light. The bonding of LEDs to components is gradually moving away from traditional soldering and toward a new method: conductive silver glue. This glue primarily uses epoxy resin to bond conductive fillers together, forming a conductive path and achieving a conductive connection between the components. The preparation of this highly thermally and electrically conductive silver glue requires mixing the raw materials.

[0003] According to the Chinese patent with the announcement number "CN214020367U", a stirring kettle with an adjustable range for preparing conductive silver glue belongs to the technical field of equipment for preparing conductive silver glue. A stirring kettle with an adjustable range for preparing conductive silver glue comprises a stirring kettle body, a rotating shaft is provided at the bottom of the stirring kettle body, an internal thread groove is provided at the top of the rotating shaft; a plurality of stirring parts are provided above the rotating shaft; an external thread is provided at the bottom of the stirring part vertically downward, and an internal thread groove is provided at the top. The utility model has a reasonable structure and can determine the length of the stirring shaft according to the amount of material to form different stirring ranges, thus saving costs and making stirring more efficient. At present, the existing stirring kettles mostly adopt a single stirring method when stirring the raw materials of the conductive silver glue, resulting in a low mixing efficiency of the raw materials of the conductive silver glue, affecting the preparation efficiency of the high thermal conductivity and high conductive silver glue. Therefore, a high thermal conductivity and high conductive silver glue preparation device for LED solid crystal is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a device for preparing high thermal and electrical conductivity silver paste for LED die bonding.

[0005] To achieve the above-mentioned object, the present invention provides a device for preparing high thermal and electrical conductivity silver paste for LED die bonding, comprising:

[0006] A kettle body, to which a kettle cover is fixedly connected;

[0007] A stirring mechanism is arranged inside the kettle body, and the stirring mechanism includes a fixed frame and a first motor, the inside of the fixed frame is fixedly connected to an internal gear ring, the output end of the first motor is fixedly connected to a rotating shaft, the lower end of the rotating shaft is fixedly connected to a fixed plate, the fixed plate is rotatably connected to a first stirring shaft through a bearing, a first stirring blade is fixedly connected to the first stirring shaft, the upper end of the first stirring shaft is fixedly connected to a first gear, the first gear is meshed with the internal gear ring, the fixed plate is rotatably connected to a second stirring shaft through a bearing, the upper end of the second stirring shaft is fixedly connected to a second gear, the second gear is meshed with the internal gear ring, and the second stirring blade is fixedly connected to the second stirring shaft.

[0008] Furthermore, the fixing frame is fixedly connected to the upper end of the inner wall of the kettle body, the first motor is fixedly connected to the kettle cover, and the kettle cover is provided with a feed port, through which the electrosilver glue raw materials can be conveniently fed into the interior of the kettle body.

[0009] Furthermore, a discharge port is provided at the bottom of the kettle body, and the first stirring blade and the second stirring blade are staggered. The discharge port can facilitate the discharge of the mixed raw materials from the interior of the kettle body. The staggered arrangement of the first stirring blade and the second stirring blade enables the first stirring blade and the second stirring blade to stagger and cross-mix the raw materials, thereby improving the mixing efficiency of the raw materials.

[0010] Furthermore, a rotating mechanism is provided on the outer wall of the kettle body, and the rotating mechanism includes a support frame and a rolling bearing. The rolling bearing is fixedly connected to the inside of the support frame, and the kettle body is fixedly connected to the inner wall of the inner ring of the rolling bearing. The setting of the rolling bearing can facilitate the rotation of the kettle body inside the support frame.

[0011] Furthermore, a mounting hole is provided on the support frame, a second motor is fixedly connected to the inside of the mounting hole, and a third gear is fixedly connected to the output end of the second motor. The setting of the mounting hole can facilitate the installation and fixation of the second motor on the support frame.

[0012] Furthermore, an outer gear ring is fixedly connected to the outer wall of the kettle body, and the third gear is engaged with the outer gear ring. By starting the second motor, the third gear is driven to rotate, thereby cooperating with the outer gear ring to drive the kettle body to rotate.

[0013] Furthermore, the fixed plate is fixedly connected to a connecting frame, the connecting frame is fixedly connected to a mounting rod, and the other end of the mounting rod is fixedly connected to a side scraper. The rotation of the fixed plate will drive the side scraper to scrape off the raw materials adhered to the inner wall of the kettle body to prevent the raw materials from adhering to the inner wall of the kettle body.

[0014] Furthermore, there are two mounting rods, which are respectively fixedly connected to the upper end and the lower end of the side wall of the side scraper. The lower end of the connecting frame is fixedly connected to the bottom scraper. The bottom scraper can be set to scrape the raw materials on the bottom wall of the kettle body, which facilitates the discharge of the raw materials and avoids the raw materials adhering to the bottom wall of the kettle body.

[0015] Beneficial effects:

[0016] Compared with the existing technology, this device for preparing high thermal and electrical conductivity silver paste for LED die bonding has the following beneficial effects:

[0017] The utility model discloses a device for preparing high-thermal and high-conductivity silver paste for LED die bonding. The device feeds the raw materials of the silver paste into the interior of a kettle through a feed port, then activates a first motor to drive a rotating shaft to rotate, causing the fixed plate to rotate. At this time, the first gear and the second gear rotate along an inner gear ring, thereby respectively driving the first stirring shaft and the second stirring shaft to rotate, causing the first stirring blade and the second stirring blade to stir the raw materials within the kettle. The first stirring blade and the second stirring blade are staggered and arranged crosswise, thereby achieving more thorough mixing of the raw materials. Simultaneously, the rotation of the fixed plate drives the first stirring shaft and the second stirring shaft to perform circular motion within the kettle, causing the stirring blades to perform circular rotation and stirring within the kettle, thereby improving the mixing efficiency of the silver paste raw materials. Furthermore, the device activates a second motor to drive a third gear to rotate, with the output shaft of the second motor rotating in a direction opposite to that of the output shaft of the first motor. The rotating third gear drives the outer gear ring to rotate, thereby driving the kettle to rotate. This, in conjunction with the stirring mechanism, can enhance the stirring effect of the silver paste raw materials. Furthermore, the rotation of the fixed plate will drive the side scraper to scrape off the raw materials adhering to the inner wall of the kettle body to prevent the raw materials from adhering to the inner wall of the kettle body. At this time, the bottom scraper scrapes the raw materials on the bottom wall of the kettle body to facilitate the discharge of the raw materials and avoid the raw materials adhering to the bottom wall of the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the kettle body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the stirring mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the rotating mechanism of the utility model;

[0022] Figure 5 This is a schematic diagram of the fixed plate structure of the utility model;

[0023] Figure 6 This is a structural diagram of the connecting frame of the utility model.

[0024] Among them: 1. kettle body; 2. stirring mechanism; 201. fixed frame; 202. inner gear ring; 203. first motor; 204. rotating shaft; 205. fixed plate; 206. first gear; 207. first stirring shaft; 208. first stirring blade; 209. second gear; 210. second stirring blade; 211. second stirring shaft; 3. rotating mechanism; 301. supporting frame; 302. rolling bearing; 303. second motor; 304. third gear; 305. outer gear ring; 4. kettle cover; 5. feed port; 6. discharge port; 7. connecting frame; 8. mounting rod; 9. side scraper; 10. bottom scraper.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] Reference Figures 1-4 , a high thermal conductivity and high electrical conductivity silver paste preparation device for LED solid crystal, including a kettle body 1, a kettle cover 4 is fixedly connected to the kettle body 1, and a stirring mechanism 2 is arranged inside the kettle body 1; the stirring mechanism 2 includes a fixed frame 201 and a first motor 203, an inner gear ring 202 is fixedly connected to the interior of the fixed frame 201, a rotating shaft 204 is fixedly connected to the output end of the first motor 203, a fixed plate 205 is fixedly connected to the lower end of the rotating shaft 204, a first stirring shaft 207 is rotatably connected to the fixed plate 205 through a bearing, a first stirring blade 208 is fixedly connected to the first stirring shaft 207, a first gear 206 is fixedly connected to the upper end of the first stirring shaft 207, the first gear 206 is meshed with the inner gear ring 202, a second stirring shaft 211 is rotatably connected to the fixed plate 205 through a bearing, a second gear 209 is fixedly connected to the upper end of the second stirring shaft 211, the second gear 209 is meshed with the inner gear ring 202, and a second stirring blade 210 is fixedly connected to the second stirring shaft 211.

[0031] In one embodiment, the fixing frame 201 is fixedly connected to the upper end of the inner wall of the kettle body 1, and the first motor 203 is fixedly connected to the kettle cover 4. The kettle cover 4 is provided with a feed port 5. The feed port 5 can be used to conveniently feed the electrosilver glue raw material into the interior of the kettle body 1.

[0032] In one embodiment, a discharge port 6 is provided at the bottom of the kettle body 1, and the first stirring blade 208 and the second stirring blade 210 are staggered. The setting of the discharge port 6 can facilitate the discharge of the mixed raw materials from the interior of the kettle body 1. The staggered setting of the first stirring blade 208 and the second stirring blade 210 allows the first stirring blade 208 and the second stirring blade 210 to stagger and cross-mix the raw materials, thereby improving the mixing efficiency of the raw materials.

[0033] In a specific embodiment, the raw materials of the electroplating paste are fed into the interior of the kettle body 1 through the feed port 5, and then the first motor 203 is started to drive the rotating shaft 204 to rotate, so that the fixed plate 205 rotates. At this time, the first gear 206 and the second gear 209 will rotate along the inner gear ring 202, thereby driving the first stirring shaft 207 and the second stirring shaft 211 to rotate respectively, so that the first stirring blade 208 and the second stirring blade 210 stir the raw materials inside the kettle body 1. The first stirring blade 208 and the second stirring blade 210 are staggered and cross-arranged, so that the mixing of the raw materials is more thorough. At the same time, due to the rotation of the fixed plate 205, the first stirring shaft 207 and the second stirring shaft 211 will be driven to perform a circular motion inside the kettle body 1, so that the stirring blades rotate and stir in a circular manner inside the kettle body 1, thereby improving the mixing efficiency of the electroplating paste raw materials.

[0034] See also Figure 1-4 On the basis of the above embodiment, in another embodiment of the present invention, a rotating mechanism 3 is provided on the outer wall of the kettle body 1, and the rotating mechanism 3 includes a support frame 301 and a rolling bearing 302. The rolling bearing 302 is fixedly connected to the inside of the support frame 301, and the kettle body 1 is fixedly connected to the inner wall of the inner ring of the rolling bearing 302. The setting of the rolling bearing 302 can facilitate the rotation of the kettle body 1 inside the support frame 301.

[0035] In one embodiment, a mounting hole is opened on the support frame 301, and the second motor 303 is fixedly connected inside the mounting hole. The output end of the second motor 303 is fixedly connected to the third gear 304. The setting of the mounting hole can facilitate the installation and fixation of the second motor 303 on the support frame 301.

[0036] In one embodiment, an outer gear ring 305 is fixedly connected to the outer wall of the kettle body 1, and the third gear 304 is engaged with the outer gear ring 305. By starting the second motor 303, the third gear 304 is driven to rotate, thereby cooperating with the outer gear ring 305 to drive the kettle body 1 to rotate.

[0037] In a specific embodiment, the second motor 303 is started to drive the third gear 304 to rotate. The output shaft of the second motor 303 rotates in the opposite direction to the output shaft of the first motor 203. The rotating third gear 304 drives the outer gear ring 305 to rotate, thereby driving the kettle body 1 to rotate. In conjunction with the stirring mechanism 2, the stirring effect of the electroplating silver paste raw material can be improved.

[0038] See also Figure 5-6On the basis of the above embodiment, in another embodiment of the present utility model, a connecting frame 7 is fixedly connected to the fixing plate 205, a mounting rod 8 is fixedly connected to the connecting frame 7, and a side scraper 9 is fixedly connected to the other end of the mounting rod 8. The rotation of the fixing plate 205 drives the side scraper 9 to scrape off the raw materials adhered to the inner wall of the kettle body 1 to prevent the raw materials from adhering to the inner wall of the kettle body 1.

[0039] In one embodiment, there are two mounting rods 8, and the two mounting rods 8 are respectively fixedly connected to the upper end and the lower end of the side wall of the side scraper 9. The lower end of the connecting frame 7 is fixedly connected to the bottom scraper 10. The bottom scraper 10 can be set to scrape the raw materials on the bottom wall of the kettle body 1, which facilitates the discharge of the raw materials and avoids the raw materials adhering to the bottom wall of the kettle body 1.

[0040] In this embodiment, the rotation of the fixed plate 205 drives the side scraper 9 to scrape off the raw materials adhering to the inner wall of the kettle body 1 to prevent the raw materials from adhering to the inner wall of the kettle body 1. At this time, the bottom scraper 10 scrapes the raw materials on the bottom wall of the kettle body 1 to facilitate the discharge of the raw materials and prevent the raw materials from adhering to the bottom wall of the kettle body 1.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for preparing high thermal and electrical conductivity silver paste for LED die bonding, characterized in that: include: A kettle body, to which a kettle cover is fixedly connected; A stirring mechanism is arranged inside the kettle body, and the stirring mechanism includes a fixed frame and a first motor, the inside of the fixed frame is fixedly connected to an internal gear ring, the output end of the first motor is fixedly connected to a rotating shaft, the lower end of the rotating shaft is fixedly connected to a fixed plate, the fixed plate is rotatably connected to a first stirring shaft through a bearing, a first stirring blade is fixedly connected to the first stirring shaft, the upper end of the first stirring shaft is fixedly connected to a first gear, the first gear is meshed with the internal gear ring, the fixed plate is rotatably connected to a second stirring shaft through a bearing, the upper end of the second stirring shaft is fixedly connected to a second gear, the second gear is meshed with the internal gear ring, and the second stirring blade is fixedly connected to the second stirring shaft.

2. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 1, characterized in that: The fixing frame is fixedly connected to the upper end of the inner wall of the kettle body, the first motor is fixedly connected to the kettle cover, and the kettle cover is provided with a feed port.

3. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 1, characterized in that: A discharge port is provided at the bottom of the kettle body, and the first stirring blade and the second stirring blade are staggered.

4. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 1, characterized in that: A rotating mechanism is provided on the outer wall of the kettle body. The rotating mechanism comprises a support frame and a rolling bearing. The rolling bearing is fixedly connected to the inside of the support frame, and the kettle body is fixedly connected to the inner wall of the inner ring of the rolling bearing.

5. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 4, characterized in that: The support frame is provided with a mounting hole, the interior of the mounting hole is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to a third gear.

6. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 5, characterized in that: An outer gear ring is fixedly connected to the outer wall of the kettle body, and the third gear is meshed with the outer gear ring.

7. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 1, characterized in that: The fixing plate is fixedly connected with a connecting frame, the connecting frame is fixedly connected with a mounting rod, and the other end of the mounting rod is fixedly connected with a side scraper.

8. The device for preparing high thermal and electrical conductivity silver paste for LED die bonding according to claim 7, characterized in that: There are two mounting rods, which are respectively fixedly connected to the upper end and the lower end of the side wall of the side scraper, and the lower end of the connecting frame is fixedly connected to the bottom scraper.

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