Shield gate trench MOSFET device

Abstract

The utility model relates to the technical field of ultrasonic cleaning, in particular to a shield gate trench MOSFET device, which comprises a device body, three groups of pins are mounted at the bottom end of the device body, a top plate is mounted at the top end of the device body, limiting rods are mounted at positions, close to two sides, of the bottom end of the top plate, limiting holes are formed in the side surfaces of the limiting rods, and the limiting holes are communicated with the pins. The bottom ends of the limiting rods are movably inserted into the limiting grooves, the two sets of limiting grooves are located in the positions, close to one side, of the top end of the protective shell correspondingly, and a connecting sleeve is installed at the bottom end of the protective shell. Through the arrangement of a top plate, a limiting rod, a limiting hole, a protective shell, a connecting sleeve, a penetrating groove, a protective sleeve, a limiting groove, a pin rod, a connecting disc, a pull ring and other parts, the problems that when an existing device body is welded to a circuit board for use, the circuit board is installed in an instrument, a shell of the instrument can protect the device body, and the device body cannot be damaged can be effectively solved. And at the moment, the protective shell is not disassembled, so that the heat dissipation efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic cleaning technology, specifically to a shielded gate trench MOSFET device. Background Technology

[0002] Power electronic components, also known as power semiconductor devices, are high-power electronic devices mainly used in the power conversion and control circuits of power equipment. With the growth in demand for consumer electronics products, the demand for power MOSFETs is increasing, for example, in disk drives, automotive electronics, and power devices. Trench MOSFETs, due to their high integration, low on-resistance, low gate-drain charge density, and large current capacity, have low switching losses and fast switching speeds, and are widely used in low-voltage power applications.

[0003] A search revealed application number 202221211700.1, a shielded gate trench type power MOSFET device. In this case, the device body and pins are protected by a protective shell and pin protection sleeve, which can prevent damage from collisions with the outside when not in use. However, when the device body is soldered to the circuit board for use, the circuit board is installed inside the instrument, and the instrument's own shell can already protect the device body. If the protective shell is not removed at this time, problems such as slow heat dissipation will occur. Therefore, corresponding improvements are needed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a shielded gate trench MOSFET device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shielded trench MOSFET device, comprising a device body, three sets of pins mounted at the bottom end of the device body, and a top plate mounted at the top end of the device body. Limiting rods are mounted on both sides of the bottom end of the top plate, and limiting holes are formed on the side surfaces of the limiting rods. The bottom ends of the limiting rods are movably inserted into the interior of limiting grooves, and two sets of limiting grooves are respectively located on one side of the top end of a protective shell. A connecting sleeve is mounted at the bottom end of the protective shell, and three sets of through grooves are formed inside the connecting sleeve. Protective sleeves are mounted on the bottom end of the connecting sleeve near the three through grooves. Pins are movably inserted into both sides of the protective shell, and a connecting plate is mounted on one end of each pin. A pull ring is mounted on one end of each connecting plate.

[0006] Preferably, the interior of the protective shell is hollow, and the top of the protective shell is open.

[0007] Preferably, the device body is located inside the protective shell, and the bottom end of the top plate overlaps the top end of the protective shell.

[0008] Preferably, the protective sleeve has an internal cavity, and the cavity is connected to the interior of the device body through a through groove.

[0009] Preferably, the bottom end of the pin passes through the inside of the connecting sleeve via a through groove and extends into the inside of the protective sleeve.

[0010] Preferably, one end of the pin passes through the inner wall of one side of the protective shell and extends into the interior of the limiting groove.

[0011] Preferably, the outer diameter of the pin is adapted to the inner diameter of the limiting hole, and one end of the pin extends into the limiting hole and is movably inserted into it.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By incorporating components such as a top plate, limiting rod, limiting hole, protective shell, connecting sleeve, through slot, protective sleeve, limiting slot, pin, connecting plate, and pull ring, the problem of slow heat dissipation caused by the existing device body being soldered to the circuit board and installed inside the instrument, where the instrument's own shell already provides protection for the device body, is effectively solved.

[0014] When not in use, the device body is placed inside the protective housing, which protects it. The three sets of pins are each housed within their respective protective sleeves, providing protection for their respective pins. In use, the user can move the connecting plate away from the protective housing using the pull ring. This moves the pin and connecting plate accordingly, allowing one end of the pin to move out of the limiting hole. The user can then use the same method to move the other set of pins out of the other limiting hole. Once the device is moved out, the user can move the top plate upwards, allowing the device body to move out of the protective shell. This allows one end of each of the two sets of limiting rods to move out of their respective limiting slots, and all three sets of pins to move out of their respective protective sleeves. After the entire device has moved out of the protective shell and the three sets of protective sleeves, the user can solder the three sets of pins onto the circuit board, enabling the device body to function normally. Then, the circuit board is installed inside the instrument, and the instrument's own shell can protect the device body and the three sets of pins. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model.

[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the main body of this utility model.

[0017] Figure 3 This is a three-dimensional cross-sectional view of the protective shell of this utility model.

[0018] Figure 4 This is a three-dimensional structural schematic diagram of the device body of this utility model.

[0019] In the diagram: 1. Device body; 11. Pin; 12. Top plate; 13. Limiting rod; 14. Limiting hole; 2. Protective shell; 21. Connecting sleeve; 211. Through groove; 22. Protective sleeve; 23. Limiting groove; 24. Pin; 25. Connecting plate; 26. Pull ring. Detailed Implementation

[0020] 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.

[0021] according to Figures 1-4 As shown, the device includes a device body 1, with three sets of pins 11 installed at the bottom end of the device body 1, and a top plate 12 installed at the top end of the device body 1. Limiting rods 13 are installed on both sides of the bottom end of the top plate 12, and limiting holes 14 are opened on the side surface of the limiting rods 13.

[0022] The bottom ends of the limiting rods 13 are movably inserted into the interior of the limiting grooves 23, and the two sets of limiting grooves 23 are respectively located on one side of the top of the protective shell 2. The interior of the protective shell 2 is hollow, and the top of the protective shell 2 is open. The device body 1 is located inside the protective shell 2, and the bottom end of the top plate 12 overlaps the top of the protective shell 2. A connecting sleeve 21 is installed at the bottom end of the protective shell 2, and three sets of through grooves 211 are opened inside the connecting sleeve 21. Protective sleeves 22 are installed at the bottom end of the connecting sleeve 21 near the three sets of through grooves 211. The protective sleeves 22 have receiving cavities inside, and the receiving cavities are... The cavity is connected to the interior of the device body 1 through the through groove 211. The bottom end of the pin 11 passes through the through groove 211 into the interior of the connecting sleeve 21 and extends into the interior of the protective sleeve 22. Pins 24 are movably inserted into both sides of the protective shell 2, and a connecting plate 25 is installed at one end of each pin 24. One end of the pin 24 passes through the inner wall of one side of the protective shell 2 and extends into the interior of the limiting groove 23. The outer diameter of the pin 24 is adapted to the inner diameter of the limiting hole 14, and one end of the pin 24 extends into the interior of the limiting hole 14 and is movably inserted into it. A pull ring 26 is installed at one end of each connecting plate 25.

[0023] When not in use, the device body 1 is placed inside the protective shell 2, which protects the device body 1. The three sets of pins 11 are respectively located inside the corresponding protective sleeves 22, which protect the corresponding pins 11. In use, the user can move the connecting plate 25 away from the protective shell 2 using the pull ring 26, causing the pin 24 and connecting plate 25 to move accordingly. This allows one end of the pin 24 to move out of the limiting hole 14. The user can then move the other set of pins 24 out of the other limiting hole 14 in the same way. After this, the user can move the top plate 12 upwards, allowing the device body 1 to... The device moves out of the protective shell 2, allowing one end of each of the two sets of limiting rods 13 to move out of the corresponding limiting grooves 23, and all three sets of pins 11 to move out of the corresponding protective sleeves 22. This allows the entire device to be moved out of the protective shell 2 and the three sets of protective sleeves 22 in one go. This is different from the comparative case, where the protective shell and pin protective sleeves need to be disassembled twice, making the disassembly operation cumbersome and inconvenient. After the entire device is moved out of the protective shell 2 and the three sets of protective sleeves 22, the user can solder the three sets of pins 11 onto the circuit board, so that the device body 1 can be used normally. Then, the circuit board is installed inside the instrument, and at this time, the instrument's own shell can protect the device body 1 and the three sets of pins 11.

[0024] 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. A shielded gate trench MOSFET device, comprising a device body (1), characterized in that: The device body (1) has three sets of pins (11) installed at its bottom end, and a top plate (12) is installed at its top end. Limiting rods (13) are installed on both sides of the bottom end of the top plate (12), and limiting holes (14) are opened on the side surfaces of the limiting rods (13). The bottom ends of the limiting rods (13) are movably inserted into the inside of the limiting grooves (23), and the two sets of limiting grooves (23) are respectively located on one side of the top end of the protective shell (2). The protective shell (2) is provided with a connecting sleeve (21) at the bottom end, and the connecting sleeve (21) has three sets of through grooves (211) inside. The bottom end of the connecting sleeve (21) is provided with a protective sleeve (22) near the three sets of through grooves (211). The protective shell (2) is movably connected with pins (24) on both sides, and a connecting plate (25) is installed at one end of each pin (24). A pull ring (26) is installed at one end of each connecting plate (25).

2. The shielded gate trench MOSFET device according to claim 1, characterized in that: The interior of the protective shell (2) is hollow, and the top of the protective shell (2) is open.

3. A shielded gate trench MOSFET device according to claim 2, characterized in that: The device body (1) is located inside the protective shell (2), and the bottom end of the top plate (12) overlaps the top end of the protective shell (2).

4. A shielded gate trench MOSFET device according to claim 1, characterized in that: The protective sleeve (22) has an internal cavity, and the cavity is connected to the interior of the device body (1) through a through groove (211).

5. A shielded gate trench MOSFET device according to claim 1, characterized in that: The bottom end of the pin (11) passes through the through groove (211) into the interior of the connecting sleeve (21) and extends into the interior of the protective sleeve (22).

6. A shielded gate trench MOSFET device according to claim 1, characterized in that: One end of the pin (24) passes through the inner wall of one side of the protective shell (2) and extends into the interior of the limiting groove (23).

7. A shielded gate trench MOSFET device according to claim 1, characterized in that: The outer diameter of the pin (24) is adapted to the inner diameter of the limiting hole (14), and one end of the pin (24) extends into the interior of the limiting hole (14) and is movably inserted into it.

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