Heat-conducting silicone grease coating device for IGBT (Insulated Gate Bipolar Translator) of converter
By designing the placement rack and coating mechanism, the problem that traditional coating devices cannot handle multiple sets of converter IGBTs at the same time is solved, and efficient coating of converter IGBTs is achieved, which improves working and processing efficiency.
Patent Information
- Application Number
- CN202420049307.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-09
AI Technical Summary
Traditional converter IGBT thermal grease coating devices cannot coat multiple sets of converters at the same time, resulting in inadequate coating work efficiency and processing efficiency.
A thermal grease coating device including a placement rack and a coating mechanism is designed. Through the placement rack, multiple sets of converter IGBTs are placed simultaneously. The coating mechanism uses components such as electric slide rails, stepper motors and threaded rods to achieve synchronization. Coating, shorten the coating time and improve efficiency.
Simultaneous coating of multiple sets of converter IGBTs is achieved, which significantly shortens the coating time and improves work efficiency and processing efficiency.
Smart Images
Figure CN222152684U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of converter maintenance and processing, in particular to a thermal conductive silicone grease coating device for an IGBT of a converter. Background Art
[0002] IGBT, insulated gate bipolar transistor, is a composite fully controlled voltage-driven power semiconductor device composed of a bipolar triode and an insulated gate field effect transistor. The IGBT module will determine the cost and reliability of the system, and even the product life, during the entire converter design process. The life of the IGBT module is directly related to its own heat dissipation. Thermal grease is usually used for heat dissipation. After the converter has been used for a period of time, the thermal grease of the converter IGBT needs to be re-coated for maintenance. A coating device is generally used for coating.
[0003] When coating the converter IGBT, the traditional coating device needs to place the converter IGBT on a workbench and coat the converter IGBT in a one-to-one manner. When the number of converter IGBTs that need to be maintained is too large, multiple groups of converter IGBTs cannot be coated at the same time, resulting in the converter IGBT coating work taking a lot of time, reducing the working efficiency of the coating device and the processing efficiency of the coating process.
[0004] According to the publication number: CN201871456U, an IGBT thermal grease coating device is provided, including a base, four pillars are fixed on the four corners of the base respectively, the pillars pass through the four round holes set on the four corners of the metal mesh fixing frame, the upper end of the pillar is provided with a positioning baffle, the pillar is provided with a spring between the positioning baffle and the metal mesh fixing frame, and the metal mesh fixing frame is fixed with a metal mesh; the base is provided with a support plate, the support plate is provided with a module positioning plate, and the module positioning plate and the mesh position of the metal mesh are provided with module positioning pins. When the device is used, the IGBT module can be fixed on the module positioning plate by the module positioning pins, and then the metal mesh is pressed against the module and the thermal grease is coated on the surface of the metal mesh. The thermal grease is coated on the surface of the IGBT module, which can make the thermal grease evenly distributed and have good heat dissipation. It is easy to operate and easy to coat quickly.
[0005] According to the coating device introduced above, it is impossible to coat multiple groups of converter IGBTs at the same time, resulting in the converter IGBT coating work taking a lot of time, reducing the working efficiency of the coating device and the processing efficiency of the coating process. Therefore, we need to propose a thermal grease coating device for the converter IGBT. Utility Model Content
[0006] The purpose of the utility model is to provide a thermal grease coating device for an inverter IGBT. By setting a placement rack, several groups of inverter IGBTs can be placed on the placement rack. By setting a coating mechanism, the coating mechanism can simultaneously perform coating processing on several groups of inverter IGBTs on the placement rack, thereby shortening the time required for the coating work of the inverter IGBT, improving the working efficiency of the coating device, and increasing the processing efficiency of the coating process, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal grease coating device for an inverter IGBT, comprising a base, a movable groove is provided on the upper surface of the base, a movable component is arranged in the inner cavity of the movable groove, a movable seat is fixedly connected to the top of the movable component, a placement rack for placing multiple groups of inverters is arranged on the top of the movable seat, a lifting frame is fixedly connected to the top of the base, an electric cylinder is fixedly connected to the top of the lifting frame, a piston end of the electric cylinder passes through the lifting frame and is fixedly connected to the lifting seat, connecting columns are fixedly connected on all sides of the bottom end of the lifting seat, and a coating mechanism for simultaneously coating multiple groups of inverters is installed on the bottom end of the connecting column.
[0008] Preferably, the moving component includes an electric slide rail, the bottom end of which is fixedly connected to the inner cavity of the moving groove, an electric slide table is slidably connected to the electric slide rail, and the top end of the electric slide table is fixedly connected to the bottom end of the moving seat.
[0009] Preferably, two groups of the electric slide rails are provided, and the two groups of the electric slide rails are symmetrically distributed in the inner cavity of the movable cabinet slot, and several groups of the electric slide seats are provided.
[0010] Preferably, the placement rack includes a placement table, a fixed block is fixedly connected to the bottom end of the placement table, a slot is opened at a position on the surface of the fixed block corresponding to the surface of the movable seat, the surface of the fixed block is engaged with the inner cavity of the slot of the movable seat, both ends of the placement table are fixedly connected with a connecting frame, and the inner side wall of the connecting frame is in contact with the outer surface of the movable seat.
[0011] Preferably, extension blocks are fixedly connected to both sides of the bottom end of the movable seat, a through hole is opened at the center of the extension block, a sliding sleeve is inserted and fixed in the inner cavity of the through hole of the extension block, a sliding rod is inserted and slidably inserted in the inner cavity of the sliding sleeve, both ends of the sliding rod are fixedly connected to fixing plates, and the bottom end of the fixing plate is fixedly connected to the upper surface of the base.
[0012] Preferably, a placement groove is provided on the upper surface of the placement table, and the placement grooves are provided in a plurality of groups, and the plurality of groups of placement grooves are arranged in a rectangular shape on the upper surface of the placement table.
[0013] Preferably, the coating mechanism includes a fixing frame, the top end of the fixing frame is fixedly connected to the bottom end of the connecting column, the bottom end of the fixing frame is fixedly connected to a coating screen, the surface of the coating screen is provided with a coating groove at a position corresponding to the placement groove, the outer wall of the fixing frame is fixedly connected to a stepper motor through a mounting plate, the output shaft of the stepper motor is fixedly connected to a threaded rod, the other end of the threaded rod is connected to the fixing frame and is rotatably connected to the inner wall of the fixing frame through a bearing, and the outer surface of the threaded rod is threadedly connected to a coating component.
[0014] Preferably, the coating assembly includes a fixed seat, a threaded sleeve is inserted and fixed at the center of the fixed seat, the inner cavity of the threaded sleeve is threadedly connected to the outer surface of the threaded rod, the bottom end of the fixed seat is fixedly connected to a scraper, the bottom end of the scraper is fitted with the bottom end of the inner cavity of the coating screen, a groove is opened at a position on the surface of the fixed seat corresponding to the surface of the fixed frame, and the inner cavity of the groove of the fixed seat is slidably connected to the surface of the fixed frame.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model provides a thermal grease coating device for an inverter IGBT. By setting a placement rack, several groups of inverter IGBTs can be placed in several group placement slots at the same time. By setting a connecting rack, it is convenient to take the placement table. By setting a coating mechanism, the coating screen contacts the surface of the inverter IGBT. The stepper motor is started to provide a driving force to drive the threaded rod to rotate. The threaded rod drives the threaded sleeve to rotate through a threaded connection. The threaded sleeve drives the fixed seat to move. The inner cavity of the fixed seat slot is slidably connected with the surface of the fixed rack to avoid the threaded sleeve driving the fixed seat to rotate, so that the threaded sleeve can only move up and down on the surface of the threaded rod. The fixed seat scrapes the thermal grease coating through the scraper at the bottom. By setting the coating slot, several groups of inverter IGBTs can be coated synchronously, thereby shortening the time required for the coating of the inverter IGBT, improving the working efficiency of the coating device, and increasing the processing efficiency of the coating process.
[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the structure of the utility model from the side;
[0020] Figure 3This is a schematic diagram of the structure of the utility model in which the lifting frame is removed to disassemble the moving seat and the placement frame;
[0021] Figure 4 It is a structural schematic diagram of the coating mechanism of the utility model.
[0022] In the figure: 1. base; 2. moving groove; 3. moving assembly; 31. electric slide rail; 32. electric slide table; 4. moving seat; 5. placement rack; 51. placement table; 52. fixed block; 53. connecting rack; 6. lifting rack; 7. electric cylinder; 8. lifting seat; 9. connecting column; 10. coating mechanism; 101. fixed rack; 102. coating screen; 103. stepping motor; 104. threaded rod; 105. coating assembly; 1051. fixed seat; 1052. threaded sleeve; 1053. scraper; 11. extension block; 12. sleeve; 13. slide rod; 14. fixed plate; 15. placement groove. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-4 The utility model provides a thermal conductive silicone grease coating device for an IGBT of an inverter, comprising a base 1, a movable groove 2 is provided on the upper surface of the base 1, a movable assembly 3 is provided in the inner cavity of the movable groove 2, a movable seat 4 is fixedly connected to the top of the movable assembly 3, a placement frame 5 for placing multiple sets of inverters is provided on the top of the movable seat 4, a lifting frame 6 is fixedly connected to the top of the base 1, an electric cylinder 7 is fixedly connected to the top of the lifting frame 6, a piston end of the electric cylinder 7 penetrates the lifting frame 6 and is fixedly connected to the lifting seat 8, a connecting column 9 is fixedly connected to the four sides of the bottom end of the lifting seat 8, and a connecting column 9 is installed at the bottom end of the connecting column 9 for simultaneously A coating mechanism 10 for coating multiple groups of inverters places several groups of inverter IGBTs on a placement rack 5, places the placement rack 5 on a moving seat 4, starts the moving component 3 to provide a driving force to drive the moving seat 4 to move toward the lifting rack 6, starts the electric cylinder 7 to provide a driving force to drive the lifting seat 8 to move downward, and the lifting seat 8 drives the coating mechanism 10 to contact the surface of the inverter IGBT through the connecting column 9, and starts the coating mechanism 10 to synchronously coat several groups of inverter IGBTs, thereby shortening the time required for the coating of the inverter IGBT, improving the working efficiency of the coating device, and increasing the processing efficiency of the coating process.
[0025] The moving component 3 includes an electric slide rail 31, the bottom end of the electric slide rail 31 is fixedly connected to the inner cavity of the moving groove 2, an electric slide table 32 is slidably connected to the electric slide rail 31, and the top end of the electric slide table 32 is fixedly connected to the bottom end of the moving seat 4. Starting the electric slide rail 31 provides a driving force to drive the electric slide table 32 to move, so that the electric slide table 32 drives the moving seat 4 to move.
[0026] There are two groups of electric slide rails 31, which are symmetrically distributed in the inner cavity of the mobile cabinet slot. There are several groups of electric slide seats. The electric slide rails 31 are provided to increase the stability of the mobile seat 4 during movement. The electric slide table 32 is provided to increase the number of mobile seats 4 and improve the processing efficiency of the inverter IGBT.
[0027] The placement rack 5 includes a placement table 51, and a fixing block 52 is fixedly connected to the bottom end of the placement table 51. A slot is provided at a position on the surface of the fixing block 52 corresponding to the surface of the moving seat 4. The surface of the fixing block 52 is engaged with the inner cavity of the slot of the moving seat 4. Both ends of the placement table 51 are fixedly connected with a connecting frame 53. The inner side wall of the connecting frame 53 fits with the outer surface of the moving seat 4. The inverter IGBT is placed on the placement table 51, the connecting frame 53 is taken out, and the fixing block 52 is inserted into the inner cavity of the slot of the moving seat 4 to fix the placement table 51 and the moving seat 4.
[0028] Extension blocks 11 are fixedly connected to both sides of the bottom end of the moving seat 4, a through hole is opened in the center of the extension block 11, a sliding sleeve 12 is inserted and fixed to the inner cavity of the through hole of the extension block 11, a sliding rod 13 is inserted and slidably inserted into the inner cavity of the sliding sleeve 12, and both ends of the sliding rod 13 are fixedly connected to a fixing plate 14, and the bottom end of the fixing plate 14 is fixedly connected to the upper surface of the base 1, and the sliding sleeve 12 and the sliding rod 13 are inserted and slid to assist the movement of the moving seat 4 and improve the stability of the moving seat 4 when moving.
[0029] The upper surface of the placement table 51 is provided with placement grooves 15, and the placement grooves 15 are arranged in several groups. The several groups of placement grooves 15 are arranged in a rectangular shape on the upper surface of the placement table 51. Through the arrangement of the placement grooves 15, several groups of placement grooves 15 can be placed at the same time.
[0030] The coating mechanism 10 includes a fixing frame 101, the top of which is fixedly connected to the bottom of the connecting column 9, the bottom of which is fixedly connected to a coating mesh plate 102, the surface of which is provided with a coating groove at a position corresponding to the placement groove 15, the outer wall of the fixing frame 101 is fixedly connected to a stepper motor 103 through a mounting plate, the output shaft of the stepper motor 103 is fixedly connected to a threaded rod 104, the other end of the threaded rod 104 observes the fixing frame 101 and is rotatably connected to the inner wall of the fixing frame 101 through a bearing, the outer surface of the threaded rod 104 is threadedly connected to a coating assembly 105, the coating mesh plate 102 contacts the surface of the inverter IGBT, the stepper motor 103 is started to provide a driving force to drive the threaded rod 104 to rotate, and the threaded rod 104 is threadedly connected to enable the coating assembly 105 to coat several groups of inverter IGBTs.
[0031] The coating assembly 105 includes a fixed seat 1051, a threaded sleeve 1052 is inserted and fixed at the center of the fixed seat 1051, the inner cavity of the threaded sleeve 1052 is threadedly connected to the outer surface of the threaded rod 104, the bottom end of the fixed seat 1051 is fixedly connected to a scraper 1053, the bottom end of the scraper 1053 is in contact with the bottom end of the inner cavity of the coating mesh plate 102, and a notch is provided at a position corresponding to the surface of the fixed frame 101, and the inner cavity of the notch of the fixed seat 1051 is slidably connected to the surface of the fixed frame 101. The threaded rod 104 drives the threaded sleeve 1052 to rotate through the threaded connection, and the threaded sleeve 1052 drives the fixed seat 1051 to move. The inner cavity of the slot of the fixed seat 1051 is slidably connected with the surface of the fixed frame 101 to prevent the threaded sleeve 1052 from driving the fixed seat 1051 to rotate, so that the threaded sleeve 1052 can only move up and down on the surface of the threaded rod 104. The fixed seat 1051 scrapes the thermal grease coating through the scraper 1053 at the bottom, and simultaneously coats several groups of converter IGBTs.
[0032] When in use, several groups of converter IGBTs are placed in the placement slot 15, the connecting frame 53 is taken out to drive the placement table 51 to move, the fixing block 52 at the lower end of the placement table 51 is inserted into the inner cavity of the notch of the moving seat 4, so that the moving seat 4 and the placement table 51 are fixed, the electric slide rail 31 is started to provide a driving force to drive the electric slide 32 to move, so that the electric slide 32 drives the moving seat 4 to move, and when coating, the electric cylinder 7 is started to provide a driving force to drive the lifting seat 8 to move, and the lifting seat 8 drives the fixing frame 101 to move through the connecting column 9, so that the coating screen 102 at the bottom of the fixing frame 101 contacts the surface of the converter IGBT, and the stepping motor 103 is started to provide a driving force to drive the threaded rod 104 rotates, the threaded rod 104 drives the threaded sleeve 1052 to rotate through the threaded connection, and the threaded sleeve 1052 drives the fixed seat 1051 to move, and the inner cavity of the slot of the fixed seat 1051 is slidably connected with the surface of the fixed frame 101 to prevent the threaded sleeve 1052 from driving the fixed seat 1051 to rotate, so that the threaded sleeve 1052 can only move up and down on the surface of the threaded rod 104, and the fixed seat 1051 scrapes the thermal grease coating through the scraper 1053 at the bottom, and coats several groups of converter IGBTs synchronously through several groups of coating grooves, thereby shortening the time required for the coating work of the converter IGBT, improving the working efficiency of the coating device, and increasing the processing efficiency of the coating process.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A thermal conductive silicone grease coating device for an IGBT of a current transformer, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a movable groove (2), the inner cavity of the movable groove (2) is provided with a movable component (3), the top of the movable component (3) is fixedly connected to a movable seat (4), the top of the movable seat (4) is provided with a placement rack (5) for placing multiple sets of inverters, the top of the base (1) is fixedly connected to a lifting frame (6), the top of the lifting frame (6) is fixedly connected to an electric cylinder (7), the piston end of the electric cylinder (7) passes through the lifting frame (6) and is fixedly connected to the lifting seat (8), the bottom of the lifting seat (8) is fixedly connected with connecting columns (9) all around, and the bottom of the connecting column (9) is equipped with a coating mechanism (10) for coating multiple sets of inverters at the same time.
2. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 1, characterized in that: The moving assembly (3) comprises an electric slide rail (31), the bottom end of the electric slide rail (31) is fixedly connected to the inner cavity of the moving groove (2), an electric slide table (32) is slidably connected to the electric slide rail (31), and the top end of the electric slide table (32) is fixedly connected to the bottom end of the moving seat (4).
3. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 2, characterized in that: Two groups of the electric slide rails (31) are provided, and the two groups of the electric slide rails (31) are symmetrically distributed in the inner cavity of the movable cabinet slot, and several groups of the electric slide seats are provided.
4. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 1, characterized in that: The placement rack (5) comprises a placement platform (51), the bottom end of the placement platform (51) is fixedly connected to a fixed block (52), a notch is provided at a position on the surface of the fixed block (52) corresponding to the surface of the movable seat (4), the surface of the fixed block (52) is engaged with the inner cavity of the notch of the movable seat (4), and both ends of the placement platform (51) are fixedly connected to a connecting frame (53), and the inner side wall of the connecting frame (53) is in contact with the outer surface of the movable seat (4).
5. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 1, characterized in that: Extension blocks (11) are fixedly connected to both sides of the bottom end of the movable seat (4); a through hole is opened at the center of the extension block (11); a sliding sleeve (12) is inserted and fixed in the inner cavity of the through hole of the extension block (11); a sliding rod (13) is inserted and slidably inserted in the inner cavity of the sliding sleeve (12); both ends of the sliding rod (13) are fixedly connected to fixed plates (14); the bottom end of the fixed plate (14) is fixedly connected to the upper surface of the base (1).
6. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 4, characterized in that: The upper surface of the placement platform (51) is provided with placement grooves (15), and the placement grooves (15) are arranged in a plurality of groups. The plurality of groups of placement grooves (15) are arranged in a rectangular shape on the upper surface of the placement platform (51).
7. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 1, characterized in that: The coating mechanism (10) comprises a fixing frame (101), the top end of the fixing frame (101) is fixedly connected to the bottom end of the connecting column (9), the bottom end of the fixing frame (101) is fixedly connected to a coating screen (102), a coating groove is provided on the surface of the coating screen (102) at a position corresponding to the placement groove (15), the outer wall of the fixing frame (101) is fixedly connected to a stepping motor (103) via a mounting plate, the output shaft of the stepping motor (103) is fixedly connected to a threaded rod (104), the other end of the threaded rod (104) observes the fixing frame (101) and is rotatably connected to the inner wall of the fixing frame (101) via a bearing, and the outer surface of the threaded rod (104) is threadedly connected to a coating component (105).
8. The thermal conductive silicone grease coating device for an IGBT of a converter according to claim 7, characterized in that: The coating assembly (105) comprises a fixed seat (1051), a threaded sleeve (1052) is inserted and fixed at the center of the fixed seat (1051), the inner cavity of the threaded sleeve (1052) is threadedly connected to the outer surface of the threaded rod (104), a scraper (1053) is fixedly connected to the bottom end of the fixed seat (1051), the bottom end of the scraper (1053) is fitted with the bottom end of the inner cavity of the coating mesh plate (102), a notch is provided at a position on the surface of the fixed seat (1051) corresponding to the surface of the fixed frame (101), and the inner cavity of the notch of the fixed seat (1051) is slidably connected to the surface of the fixed frame (101).