Glue sealing device for IGBT (Insulated Gate Bipolar Translator) module

Abstract

The utility model relates to the technical field of IGBT modules, in particular to an IGBT module glue sealing device which comprises a conveying belt, side vertical plates arranged on two sides of the conveying belt, a clamping assembly arranged in the middle of the side vertical plates, a mounting plate arranged on the tops of the side vertical plates, a glue barrel mounted on the mounting plate, a connecting pipe connected to the bottom of the glue barrel, and a glue injection head connected to the bottom end of the connecting pipe. The glue injection head is connected with an adjusting assembly. According to the IGBT module glue sealing device provided by the utility model, when glue sealing production is carried out, the IGBT module needing glue filling is placed on the conveying belt and conveyed to a glue filling position, the clamping assembly fixes and clamps the IGBT module, then sealant enters the glue injection head and flows out for glue filling, the adjusting assembly adjusts the position of the glue injection head, so that the sealant is uniformly distributed, and the glue filling efficiency is improved. The sealant enters the sealant injection head through the connecting pipe, and the discharging motor is controlled to drive the spiral shaft to rotate, so that the sealant in the sealant injection head completely flows out, residues are avoided, and the sealant is prevented from being solidified.

Description

Technical Field

[0001] This utility model relates to the technical field of IGBT modules, specifically to an IGBT module encapsulation device. Background Technology

[0002] IGBT modules are modular semiconductor products that are packaged by insulated gate bipolar transistor chips and fairings (FWD) through specific circuit bridging. The packaged IGBT modules are directly used in equipment such as frequency converters and UPS uninterruptible power supplies. Sealant refers to a sealing material that deforms with the shape of the sealing surface, does not flow easily, and has a certain degree of adhesion. It is an adhesive used to fill the gaps in the structure to achieve a sealing effect. It has functions such as leak prevention, waterproofing, vibration prevention, sound insulation, and heat insulation. Sealant plays an important role in the IGBT module manufacturing process.

[0003] In the existing IGBT module encapsulation production process, the encapsulation device may result in uneven encapsulation. Furthermore, after the sealant flows from the storage tank into the filling head, it may solidify if left there for an extended period, affecting normal production. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide an IGBT module encapsulation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an IGBT module sealing device, comprising a conveyor belt, side plates on both sides of the conveyor belt, a clamping assembly in the middle of the side plates, a mounting plate on the top of the side plates, a glue bucket mounted on the mounting plate, a connecting pipe connected to the bottom of the glue bucket, the bottom end of the connecting pipe being connected to a glue injection head, and an adjusting assembly connected to the glue injection head.

[0006] Preferably, the conveyor belt is equipped with idler rollers, which are connected to a feeding motor.

[0007] Preferably, the clamping assembly includes a first telescopic rod mounted on the side plate, and a fixed clamping plate is connected to the end of the first telescopic rod.

[0008] Preferably, the adjustment assembly includes a side frame installed on the inner side wall of the side panel, an inner slider slidably disposed inside the side frame, an adjustment motor disposed at one end of the side frame, a lead screw connected to the output end of the adjustment motor, the lead screw passing through the inner slider and connected to the inner slider through internal and external threads, a second telescopic rod installed on the side wall of the inner slider, and the end of the second telescopic rod connected to the side wall of the dispensing head.

[0009] Preferably, the top of the dispensing head is provided with a top block, and a discharge motor is installed on the top block. The output end of the discharge motor extends into the interior of the top block and is connected to a drive gear. A spiral shaft is provided inside the dispensing head. The spiral shaft is rotatably mounted on the top surface of the dispensing head. The top end of the spiral shaft passes through the top surface of the dispensing head and is connected to a driven gear. The driven gear and the drive gear are meshed and connected.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model proposes an IGBT module sealing device. During the sealing process, the IGBT module to be sealed is placed on a conveyor belt and conveyed to the sealing point. The clamping component fixes and clamps the IGBT module. Then, the sealant enters the dispensing head and flows out for dispensing. The adjusting component adjusts the position of the dispensing head to ensure that the sealant is evenly distributed. The sealant enters the dispensing head through a connecting pipe. By controlling the discharge motor to drive the screw shaft to rotate, all the sealant in the dispensing head flows out, avoiding residue and preventing the sealant from solidifying. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the device of this utility model.

[0013] Figure 2 This is a schematic diagram of the dispensing head connection structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the dispensing head of this utility model.

[0015] In the diagram: 1. Conveyor belt; 2. Side plate; 3. First telescopic rod; 4. Fixed clamp; 5. Feeding motor; 6. Mounting plate; 7. Glue bucket; 8. Connecting pipe; 9. Glue injection head; 10. Side frame; 11. Inner slider; 12. Second telescopic rod; 13. Lead screw; 14. Adjusting motor; 15. Top block; 16. Screw shaft; 17. Driven gear; 18. Discharge motor. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 3This utility model provides a technical solution: an IGBT module encapsulation device, including a conveyor belt 1, a roller inside the conveyor belt 1, the roller being connected to a feeding motor 5, the IGBT module to be encapsulated is placed on the surface of the conveyor belt 1, and the feeding motor 5 is started to transport the IGBT module to a designated position.

[0018] The conveyor belt 1 has side plates 2 on both sides, and a clamping assembly is provided in the middle of the side plates 2. The clamping assembly includes a first telescopic rod 3 installed on the side plates 2. A fixed clamping plate 4 is connected to the end of the first telescopic rod 3. An infrared positioning device is provided in the device for precise positioning. When the IGBT module is conveyed to the glue-filling area, the first telescopic rod 3 extends so that the fixed clamping plate 4 clamps and fixes the IGBT module to prevent it from moving during glue filling.

[0019] A mounting plate 6 is provided on the top of the side panel 2, and a glue tank 7 is mounted on the mounting plate 6. A connecting pipe 8 is connected to the bottom of the glue tank 7, and the bottom end of the connecting pipe 8 is connected to a glue injection head 9. A solenoid valve is provided at the top of the connecting pipe 8. Each time glue is injected, the sealant inside the glue tank 7 enters the glue injection head 9 through the connecting pipe 8. The amount of sealant injected each time is the amount required for one injection. It can be injected by means of a pump or other device. Then the solenoid valve is closed, and no further injection is needed. The glue injection head 9 is connected to an adjustment component, which includes a side frame 10 installed on the inner side wall of the side panel 2. An inner... The slider 11 has an adjusting motor 14 at one end of the side frame 10. The output end of the adjusting motor 14 is connected to a lead screw 13. The lead screw 13 passes through the inner slider 11 and is connected to the inner slider 11 through internal and external threads. A second telescopic rod 12 is installed on the side wall of the inner slider 11. The end of the second telescopic rod 12 is connected to the side wall of the glue injection head 9. By controlling the extension and retraction of the second telescopic rod 12, the glue injection head 9 can move laterally. By controlling the adjusting motor 14 to drive the lead screw 13 to rotate, the inner slider 11 drives the second telescopic rod 12 and the glue injection head 9 to move longitudinally, thereby changing the position of the glue injection head 9 during glue injection and making the glue injection more uniform.

[0020] The top of the dispensing head 9 is provided with a top block 15, and a discharge motor 18 is installed on the top block 15. The output end of the discharge motor 18 extends into the interior of the top block 15 and is connected to a drive gear. A spiral shaft 16 is provided inside the dispensing head 9. The spiral shaft 16 is rotatably mounted on the top surface of the dispensing head 9. The top end of the spiral shaft 16 passes through the top surface of the dispensing head 9 and is connected to a driven gear 17. The driven gear 17 and the drive gear are meshed. By controlling the discharge motor 18 to drive the drive gear to rotate, the driven gear 17 drives the spiral shaft 16 to rotate, which can discharge all the sealant in the dispensing head 9 and prevent residual solidification.

[0021] During the sealing process, the IGBT module to be encapsulated is placed on the conveyor belt 1 and transported to the encapsulation point. The clamping assembly clamps the IGBT module, and then the sealant enters the encapsulation head 9 and flows out for encapsulation. The adjusting assembly adjusts the position of the encapsulation head 9 to ensure that the sealant is evenly distributed. The sealant enters the encapsulation head 9 through the connecting pipe 8. By controlling the discharge motor 18 to drive the spiral shaft 16 to rotate, all the sealant in the encapsulation head 9 flows out, avoiding residue and preventing the sealant from solidifying.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An IGBT module encapsulating device comprising a conveyor belt (1), characterized in that: The conveying belt (1) is provided with side vertical plates (2) on both sides, the middle part of the side vertical plate (2) is provided with a clamping assembly, the top of the side vertical plate (2) is provided with a mounting plate (6), the mounting plate (6) is installed with a glue barrel (7), the bottom of the glue barrel (7) is connected with a connecting pipe (8), the bottom end of the connecting pipe (8) is connected with a glue injection head (9), the glue injection head (9) is connected with an adjusting assembly, the adjusting assembly comprises a side frame (10) installed on the inner side wall of the side vertical plate (2), an inner sliding block (11) is slidably arranged in the side frame (10), one end of the side frame (10) is provided with an adjusting motor (14), the output end of the adjusting motor (14) is connected with a lead screw (13), the lead screw (13) penetrates through the inner sliding block (11) and is connected with the inner sliding block (11) through inner and outer thread cooperation, a second telescopic rod (12) is installed on the side wall of the inner sliding block (11), the end of the second telescopic rod (12) is connected with the side wall of the glue injection head (9), the top of the glue injection head (9) is provided with a top block (15), a discharging motor (18) is installed on the top block (15), the output end of the discharging motor (18) extends into the inside of the top block (15) and is connected with a driving gear, a spiral shaft (16) is arranged in the inside of the glue injection head (9), the spiral shaft (16) is rotatably installed on the top surface of the glue injection head (9), the top end of the spiral shaft (16) penetrates through the top surface of the glue injection head (9) and is connected with a driven gear (17), the driven gear (17) and the driving gear are meshedly connected.

2. The IGBT module encapsulating device according to claim 1, wherein: The conveying belt (1) is provided with a supporting roller, and the supporting roller is connected with a feeding motor (5).

3. The IGBT module encapsulating device according to claim 1, wherein: The clamping assembly comprises a first telescopic rod (3) installed on the side vertical plate (2), and a fixed clamping plate (4) is connected at the end of the first telescopic rod (3).

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