Combined die of novel power device

Abstract

The utility model discloses a novel combined die of a power device, and relates to the technical field of combined dies. The die comprises a die body, a clamping mechanism and a material taking mechanism, the clamping mechanism comprises a fixing frame, the clamping mechanism and a clamping block are arranged, and the clamping mechanism is clamped through a sliding rod, a fixing plate, a second containing groove, a fastening rotary knob and other components under the synergistic effect; the clamping mechanism is arranged on the die body, accurate clamping and positioning of key components such as a heat dissipation substrate, a substrate, an IGBT chip and a diode can be achieved, the clamping blocks are matched with the clamping grooves in the die body, stable supporting and connection are provided for the clamping mechanism, it can be ensured that the clamping mechanism cannot shake or shift in the welding process, and the welding quality is improved. A sliding rod and a fastening rotary knob in the clamping mechanism enable the die to adapt to power device parts of different sizes and shapes, an operator only needs to press down a pressing piece, a clamping plate can stably clamp a heat dissipation substrate, a welded finished product is taken out together with the heat dissipation substrate, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combined molds, in particular to a new type of combined mold for power devices. Background Art

[0002] Power devices, as key semiconductor devices for processing and converting electricity, ensure efficient and reliable power transmission and control in various application scenarios with their high performance in voltage, current and power. From the core MOSFET and IGBT to a wide variety of diodes, thyristors and emerging SiC MOSFETs, these devices play an important role in many fields such as power supply, motor control, and renewable energy systems.

[0003] Power devices require IGBT chips, diodes, substrates and heat sinks to be assembled and welded. However, existing power devices generally lack combination molds to clamp and position the various components. External vibrations during the welding process can easily cause component displacement, leading to poor welding joints. This not only weakens the overall structural strength of the power device, but may also introduce potential failure points, thereby affecting the quality and service life of the finished product. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a new type of combined mold for power devices to solve the technical problems of component deviation and loose welding caused by lack of effective clamping and positioning during the welding process of power devices.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a new type of combined mold for power devices, comprising a mold body, a clamping mechanism, and a material removal mechanism, wherein the clamping mechanism comprises a fixing frame, wherein two sides of the fixing frame are provided with slide grooves, wherein the slide grooves are engaged and slidably engaged with a slide rod, wherein a fixing plate is provided on the slide rod, wherein a second placement groove is provided on the top of the fixing plate, and tightening knobs are provided at both ends of the slide rod;

[0006] The material-taking mechanism includes an installation groove, a spring sleeve rod is arranged inside the installation groove, one end of the spring sleeve rod is fixedly connected to a clamping plate, one side of the clamping plate is fixedly connected to a push plate, one side of the push plate is provided with an inclined surface, a connecting column is arranged above the inclined surface, and a pressing piece is arranged on the top of the connecting column.

[0007] By adopting the above technical solution, the cooperation between the sliding groove and the sliding rod enables the fixing plate to be flexibly moved in the horizontal direction to adapt to power devices of different sizes.

[0008] Furthermore, two fixing plates are provided, and the two fixing plates are arranged in a mirror image.

[0009] By adopting the above technical solution and providing two mirror-image fixing plates, the clamping mechanism can provide more stable support when fixing the power device to be welded.

[0010] Furthermore, two spring sleeve rods are provided, and the two spring sleeve rods are symmetrically arranged along the central axis of the installation groove.

[0011] By adopting the above technical solution, the two spring sleeve rods are symmetrically arranged along the central axis of the installation groove, which can ensure that the force applied to the clamping plate is uniform and balanced during the material removal process.

[0012] Furthermore, a rubber layer is provided on the outer surface of the pressing piece, and friction lines are provided on the outer surface of the rubber layer.

[0013] By adopting the above technical solution, the rubber layer on the outer surface of the pressing piece has good elasticity and softness, can fit the operator's hand, and reduce the discomfort caused by long-term operation.

[0014] Furthermore, a first placement groove is provided on the top of the mold body, and the first placement groove is adapted to the clamping mechanism.

[0015] By adopting the above technical solution, the first placement groove is adapted to the clamping mechanism, which means that the clamping mechanism can be accurately placed at a predetermined position on the mold body. This precise positioning function is crucial to ensuring the accuracy and consistency of subsequent welding operations.

[0016] Furthermore, a clamping groove is provided on one side of the first placement groove, a clamping block is clamped in the clamping groove, and the clamping block is fixedly connected to the fixing frame.

[0017] By adopting the above technical solution, the clamping mechanism can be firmly fixed on the mold body through the snap connection of the snap groove and the snap block. This connection method provides strong structural support and effectively prevents the clamping mechanism from shaking or shifting during the welding process, thereby ensuring the accuracy and quality of welding.

[0018] Furthermore, there are two clamping grooves, and the two clamping grooves are symmetrically arranged along the central axis of the mold body.

[0019] By adopting the above technical solution, by setting two clamping grooves and distributing them symmetrically along the central axis of the mold body, the connection stability between the clamping mechanism and the mold body can be enhanced, so that the clamping block can be subjected to uniform force when clamping, thereby avoiding the shaking or tilting problems that may be caused by single-point force.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. The utility model provides a clamping mechanism and a clamping block. The clamping mechanism can achieve precise clamping and positioning of key components such as heat dissipation substrate, base substrate, IGBT chip and diode through the coordinated action of components such as sliding rod, fixing plate, second placement groove and fastening knob, which not only improves the welding accuracy, but also effectively avoids the problem of poor welding caused by component offset during the welding process. The clamping block cooperates with the clamping groove on the mold body to provide stable support and connection for the clamping mechanism. This connection method is simple and reliable, and can ensure that the clamping mechanism will not shake or shift during the welding process, thereby further ensuring the welding quality. The sliding rod and fastening knob in the clamping mechanism enable the mold to adapt to power device components of different sizes and shapes. This flexibility makes the mold have a wider range of applications and can meet different production needs.

[0022] 2. The utility model realizes convenient material taking operation by setting up a material taking mechanism, which is a combination of components such as a spring sleeve rod, a clamping plate, a push plate, an inclined surface and a pressing piece. The operator only needs to press the pressing piece to make the clamping plate stably clamp the heat dissipation substrate and take out the finished product after welding, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a structural diagram of the material taking mechanism of the utility model;

[0025] Figure 3 This is a schematic structural diagram of the clamping mechanism of the utility model;

[0026] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0027] In the figure: 1. mold body; 2. first placement slot; 3. snap-in slot; 4. snap-in block; 5. clamping mechanism; 501. fixing frame; 502. slide slot; 503. slide rod; 504. tightening knob; 505. fixing plate; 506. second placement slot; 6. material taking mechanism; 601. mounting slot; 602. spring sleeve rod; 603. push plate; 604. clamping plate; 605. inclined surface; 606. connecting column; 607. pressing piece. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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 operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] A new type of combined mold for power devices, such as Figures 1-4 As shown, it includes a mold body 1, a clamping mechanism 5 and a material taking mechanism 6. The clamping mechanism 5 includes a fixing frame 501. The fixing frame 501 has sliding grooves 502 on both sides. The sliding grooves 502 are engaged and slidably engaged with a slide bar 503. A fixing plate 505 is provided on the slide bar 503. A second placement groove 506 is provided on the top of the fixing plate 505. Fastening knobs 504 are provided at both ends of the slide bar 503.

[0033] The material picking mechanism 6 includes a mounting groove 601, and a spring sleeve rod 602 is provided inside the mounting groove 601. One end of the spring sleeve rod 602 is fixedly connected to a clamping plate 604, and one side of the clamping plate 604 is fixedly connected to a push plate 603. A slope 605 is provided on one side of the push plate 603, and a connecting column 606 is provided above the slope 605. A pressing piece 607 is provided on the top of the connecting column 606. The cooperation between the slide groove 502 and the slide rod 503 enables the fixed plate 505 to move flexibly in the horizontal direction to adapt to power devices of different sizes. The cooperation between the push plate 603 and the slope 605 enables the push plate 603 to be pushed outward when the pressing piece 607 is pressed, thereby driving the clamping plate 604 to clamp the heat dissipation substrate.

[0034] See Figure 3There are two fixing plates 505, and the two fixing plates 505 are mirror-imaged. By setting two mirror-image fixing plates 505, the clamping mechanism 5 can provide more stable support when fixing the power device to be welded. The two fixing plates 505 can be evenly distributed on both sides of the power device, effectively preventing the device from shaking or shifting during the welding process, thereby ensuring the accuracy and quality of welding.

[0035] See Figure 2 、 Figure 4 Two spring sleeve rods 602 are provided, and the two spring sleeve rods 602 are symmetrically arranged along the central axis of the installation groove 601. The two spring sleeve rods 602 are symmetrically arranged along the central axis of the installation groove 601, which can ensure that the force exerted on the clamping plate 604 is uniform and balanced during the material retrieving process. The two symmetrically arranged spring sleeve rods 602 enhance the stability of the overall structure of the material retrieving mechanism 6. During frequent material retrieving operations, the shaking and wear of the material retrieving mechanism 6 can be reduced, thereby extending its service life.

[0036] See Figure 4 The outer surface of the pressing piece 607 is provided with a rubber layer, and the outer surface of the rubber layer is provided with friction patterns. The rubber layer on the outer surface of the pressing piece 607 has good elasticity and softness, can fit the operator's hand, and reduce the discomfort caused by long-term operation. The friction patterns on the outer surface of the rubber layer can effectively increase the friction between the fingers and the pressing piece 607, and can prevent slipping caused by sweating hands or other reasons, thereby ensuring the stability and accuracy of the operation.

[0037] See Figure 3 A first placement groove 2 is provided on the top of the mold body 1, and the first placement groove 2 is adapted to the clamping mechanism 5. The first placement groove 2 is adapted to the clamping mechanism 5, which means that the clamping mechanism 5 can be accurately placed at a predetermined position on the mold body 1. This precise positioning function is crucial to ensuring the accuracy and consistency of subsequent welding operations. Since the first placement groove 2 is adapted to the clamping mechanism 5, the operator does not need to perform complicated adjustments or alignment operations when installing and removing the clamping mechanism 5, which simplifies the operating steps and improves work efficiency.

[0038] See Figure 1 A snap-in groove 3 is provided on one side of the first placement groove 2, and a snap-in block 4 is engaged with the snap-in groove 3. The snap-in block 4 is fixedly connected to the fixing frame 501. The snap-in connection between the snap-in groove 3 and the snap-in block 4 can ensure that the clamping mechanism 5 is firmly fixed on the mold body 1. This connection method provides strong structural support, effectively preventing the clamping mechanism 5 from shaking or shifting during the welding process, thereby ensuring the accuracy and quality of the welding. The durability of the snap-in groove 3 and the snap-in block 4 enables them to withstand multiple disassembly and assembly operations without being easily damaged, thereby ensuring the long-term use of the mold.

[0039] See Figure 1 There are two clamping grooves 3, which are symmetrically arranged along the central axis of the mold main body 1. By setting two clamping grooves 3 and distributing them symmetrically along the central axis of the mold main body 1, the connection stability between the clamping mechanism and the mold main body can be enhanced, so that the clamping block 4 can be subjected to uniform force when clamping, thereby avoiding the shaking or tilting problem that may be caused by single-point force. The symmetrically arranged clamping grooves 3 help to improve the positioning accuracy of the clamping mechanism on the mold main body 1, and can more easily place the clamping mechanism accurately in the predetermined position, thereby improving the overall welding accuracy.

[0040] The implementation principle of the present utility model is: first, the heat dissipation substrate is placed in the first placement groove 2, and then the position between the fixing plates 505 is adjusted by the sliding rod 503 and fixed by the tightening knob 504, and then the substrate and the IGBT chip or diode are placed in the second placement groove 506 in sequence, and then the clamping block 4 is clamped with the clamping groove 3 and welded. When multiple rows of welding are required, the operation can be repeated to complete the welding of all components. After the welding is completed, the tightening knob 504 is released, and the operator holds the clamping block with four fingers and presses the pressing piece 607 with the thumb at the same time, so that the connecting column 606 presses down the inclined surface 605 so that the two side clamps 604 clamp the heat dissipation substrate from both sides, and takes out the welded product while picking up the clamping block 4, which is convenient for subsequent processing.

[0041] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A new type of combined mold for power devices, characterized by: The invention comprises a mold body (1), a clamping mechanism (5) and a material taking mechanism (6), wherein the clamping mechanism (5) comprises a fixing frame (501), two sides of the fixing frame (501) are provided with sliding grooves (502), the sliding grooves (502) are engaged and slidably engaged with a sliding rod (503), a fixing plate (505) is provided on the sliding rod (503), a second placement groove (506) is provided on the top of the fixing plate (505), and fastening knobs (504) are provided at both ends of the sliding rod (503); The material taking mechanism (6) includes a mounting groove (601), a spring sleeve rod (602) is provided inside the mounting groove (601), one end of the spring sleeve rod (602) is fixedly connected to a clamping plate (604), one side of the clamping plate (604) is fixedly connected to a push plate (603), one side of the push plate (603) is provided with an inclined surface (605), a connecting column (606) is provided above the inclined surface (605), and a pressing piece (607) is provided on the top of the connecting column (606).

2. The modular die for the novel power device according to claim 1, characterized in that: Two fixing plates (505) are provided, and the two fixing plates (505) are arranged in a mirror image.

3. The modular die for the novel power device according to claim 1, characterized in that: Two spring sleeve rods (602) are provided, and the two spring sleeve rods (602) are symmetrically arranged along the central axis of the installation groove (601).

4. The modular die for the novel power device according to claim 1, characterized in that: The outer surface of the pressing sheet (607) is provided with a rubber layer, and the outer surface of the rubber layer is provided with friction lines.

5. The modular die for the novel power device according to claim 1, characterized in that: A first placement groove (2) is provided on the top of the mold body (1), and the first placement groove (2) is adapted to the clamping mechanism (5).

6. The modular die for the novel power device according to claim 5, characterized in that: A clamping groove (3) is provided on one side of the first placement groove (2), a clamping block (4) is clamped in the clamping groove (3), and the clamping block (4) is fixedly connected to the fixing frame (501).

7. The modular die for the novel power device according to claim 6, characterized in that: Two clamping grooves (3) are provided, and the two clamping grooves (3) are symmetrically arranged along the central axis of the mold body (1).

Images