Three-phase rectification controllable module sintering mold

Abstract

The utility model discloses a three -phase rectification controllable module sintering mould, and sintering mould includes base block, and the first limit block is equipped with to the base block bottom surface along the edge, and the first through -hole is seted up in the bottom plate middle part, and the first step surface is seted up to the bottom plate bottom surface along the first through -hole edge, and the limit boss is equipped with in the first through -hole, and the second step surface is seted up to the limit boss bottom surface with first step surface height, and the first recess is seted up to the first step surface of first through -hole front lateral wall, rear lateral wall, and the third step surface is seted up to the bottom surface of first recess closed end, and first through -hole still sets up first slot, second slot, third slot, fourth slot and fifth slot, and the fifth step surface and sixth slot are still seted up to the base block bottom surface, and the cover plate is equipped with to the base block top surface upper, the utility model discloses through three -dimensional layered positioning, cover plate interlock locking and anti -moving partition design, solved three -phase rectification module manual assembly's positioning misalignment, welding cavity and low -efficiency problem, and the product consistency and yield have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of electronic device tooling technology, specifically to a sintering mold for a three-phase rectifier controllable module. Background Technology

[0002] like Figure 1-2 As shown, a three-phase rectifier controllable module 1 includes a base plate 101. A first ceramic plate 102, a second ceramic plate 103, and a third ceramic plate 104 are fixed to the top surface of the base plate by solder paste. The three first ceramic plates are arranged side-by-side. A copper gasket 105 is fixed to the top surface of each first ceramic plate by solder paste. A core is sintered and fixed to both ends of the top surface of each gasket, including a first core 106, a second core 107, a third core 108, a fourth core 109, a fifth core 1010, and a sixth core 1011. The top surfaces of the first, second, and third cores are interconnected by a first connecting piece 1012. A first electrode 1013 is fixed to the right end of the first connecting piece. Second electrodes are sequentially fixed to the middle of the three gaskets. 1014, third electrode 1015 and fourth electrode 1016, fifth electrode 1017 is sintered and fixed on the top surface of the second ceramic plate, the top surfaces of the fourth core, fifth core and sixth core are connected to each other by the second connecting piece 1018, the left end of the second connecting piece is fixed to the bottom of the horizontal section of the fifth electrode, a controllable core 1019 is sintered and fixed in the middle of the horizontal section of the fifth electrode, a fourth ceramic plate 1020 is sintered and fixed at the end of the horizontal section of the fifth electrode near the tab, the two ends of the third connecting piece 1021 are respectively connected to the top surface of the controllable core and the top surface of the fourth ceramic plate, a sixth electrode 1022 is sintered and fixed on the top surface of the third connecting piece at one end of the fourth ceramic plate, and two seventh electrodes 1023 are sintered and fixed on the top surface of the third ceramic plate.

[0003] In existing technologies, assembling the bridge core of a three-phase rectifier controllable module faces significant technical challenges. Due to the lack of dedicated sintering molds, the positioning of each component relies solely on manual experience, employing a modular assembly method. This traditional assembly method suffers from poor positioning accuracy, low assembly efficiency, and a tendency to produce weld voids, resulting in a high product defect rate and low production volume.

[0004] Therefore, it is necessary to provide a sintering mold for a three-phase rectifier controllable module to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a three-phase rectifier controllable module sintering mold to achieve precise positioning and reliable fixing of each component, improve assembly efficiency and sintering quality, and effectively reduce product defect rate while increasing product output.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A sintering mold for a three-phase rectifier controllable module includes a three-phase rectifier controllable sintering module and a sintering mold. The three-phase rectifier controllable module includes multiple dies and multiple ceramic plates, electrode plates, connecting plates, and gaskets corresponding to the dies. The ceramic plates, electrode plates, connecting plates, and gaskets are mounted on a base plate after being assembled with the dies. The sintering mold includes a base block. The bottom surface of the base block is provided with first limiting blocks along its perimeter. Multiple first limiting blocks provide limiting and fixing to the base plate. A first through hole is opened in the center of the base plate to allow multiple electrode plates, connecting plates, and dies to pass through simultaneously. The bottom surface of the base plate is provided with first limiting blocks along its perimeter. A first stepped surface is formed at the edge of the through hole. A limiting boss is provided inside the first through hole. The limiting boss is arranged parallel to the front and rear sidewalls of the first through hole. The left end of the limiting boss is fixed to the left sidewall of the first through hole, and the right end of the limiting boss is spaced apart from the right sidewall of the first through hole. The limiting boss also includes a limiting protrusion and a limiting baffle. The limiting protrusion and the limiting baffle are arranged opposite to the rear sidewall of the first through hole. A second stepped surface with the same height as the first stepped surface is formed on the bottom surface of the limiting boss. The first stepped surface on the left side of the limiting baffle is used to accommodate three first ceramic pieces arranged side by side. The right side of the limiting baffle... The first stepped surface on the side is used to accommodate the second ceramic piece. The first stepped surfaces of both the front and rear sidewalls of the first through hole have first grooves for separating the core tubes. The bottom surface of the closed end of the first groove has a third stepped surface. The second stepped surface of the limiting boss has a fourth stepped surface corresponding to the third stepped surface. The third and fourth stepped surfaces are at the same height and together accommodate three gaskets arranged side-by-side. The first groove on the rear sidewall of the first through hole cooperates with the limiting protrusion and the limiting baffle to respectively limit the displacement of the first, second, and third core tubes. The left sidewall of the first through hole... The top has a first slot for inserting the first electrode, the lower left side wall of the first through hole has a second slot for inserting the second electrode, the top right side wall of the first through hole has a third slot for inserting the fifth electrode, the middle right side wall of the first through hole has a fourth slot for inserting the controllable die, the rear side wall of the first through hole has a fifth slot for inserting the sixth electrode, the bottom surface of the base block also has a fifth stepped surface for accommodating the third ceramic plate, the bottom wall of the fifth stepped surface has a sixth slot for inserting the seventh electrode, and a cover plate is provided above the top surface of the base block.

[0008] Preferably, the top surface of the base block and the top surface of the limiting boss are provided with a sixth step surface for accommodating the cover plate.

[0009] Preferably, the cover plate has a seventh slot, an eighth slot, a ninth slot, a tenth slot, and an eleventh slot for inserting the first electrode, the second electrode, the third electrode, the fourth electrode, and the sixth electrode.

[0010] Preferably, the base block has symmetrically arranged second through holes on both sides.

[0011] Preferably, a second limiting block is provided on the right side of the limiting baffle, and the second limiting block cooperates with the fourth slot to limit the controllable core.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. Achieve high-precision positioning of complex structures: Design multiple stepped surfaces and dedicated slots on the base block to accommodate irregularly shaped components such as ceramic plates, electrode plates, connecting plates and tube cores, thereby achieving three-dimensional positioning.

[0014] 2. Integrated assembly improves efficiency: All parts are placed in stepped layers, simplifying the operation process. The pole pieces are fixed by slots, reducing adjustment time and improving assembly efficiency, making it suitable for mass production.

[0015] 3. Anti-movement design improves welding quality: The cover plate and the base block cooperate to form an upper and lower clamp, and the limiting boss realizes the limiting zone to avoid mutual interference between parts. During the sintering process, the parts will not move, avoiding the formation of welding voids and improving welding quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a three-phase rectifier controllable module;

[0017] Figure 2 yes Figure 1 An explosion diagram;

[0018] Figure 3 This is a schematic diagram of the installation of a three-phase rectifier controllable module and a sintering mold;

[0019] Figure 4 This is a schematic diagram of the structure of the bottom surface of the base block;

[0020] Figure 5 This is a schematic diagram of the installation of the base plate on the bottom surface of the base block;

[0021] Figure 6 This is a schematic diagram showing the installation of the first, second, and third ceramic tiles on the bottom surface of the base block;

[0022] Figure 7 This is a schematic diagram of the installation of the gasket, the fifth electrode plate, the first connecting plate, and the second connecting plate on the bottom surface of the base block;

[0023] Figure 8 This is a schematic diagram of the installation of the first core, second core, third core, fourth core, fifth core, sixth core, controllable core, and fourth ceramic plate on the bottom surface of the substrate;

[0024] Figure 9 This is a schematic diagram of the installation of the three-phase rectifier controllable module on the top surface of the base block;

[0025] Among them, 1-three-phase rectifier controllable module, 101-base plate, 102-first ceramic plate, 103-second ceramic plate, 104-third ceramic plate, 105-pad, 106-first die, 107-second die, 108-third die, 109-fourth die, 1010-fifth die, 1011-sixth die, 1012-first connecting piece, 1013-first electrode, 1014-second electrode, 1015-third electrode, 1016-fourth electrode, 1017-fifth electrode, 1018-second connecting piece, 1019-controllable chip, 1020-fourth ceramic plate, 1021-third connecting piece, 1022-sixth electrode, 1023-seventh electrode; 2-base block, 201-first... 1. Limiting block; 202. First through hole; 203. First stepped surface; 204. Limiting boss; 2041. Limiting protrusion; 2042. Limiting baffle; 205. Second stepped surface; 206. First groove; 207. Third stepped surface; 208. Fourth stepped surface; 209. First slot; 2010. Second slot; 2011. Third slot; 2012. Fourth slot; 2013. Second limiting block; 2014. Fifth slot; 2015. Fifth stepped surface; 2016. Sixth slot; 2017. Sixth stepped surface; 2018. Second through hole; 3. Cover plate; 301. Seventh slot; 302. Eighth slot; 303. Ninth slot; 304. Tenth slot; 305. Eleventh slot. Detailed Implementation

[0026] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixed connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0029] like Figures 3 to 9As shown, a three-phase rectifier controllable module sintering mold includes a three-phase rectifier controllable sintering module 1 and a sintering mold. The three-phase rectifier controllable module includes multiple cores and multiple ceramic plates, electrode plates, connecting plates, and gaskets corresponding to the cores. The ceramic plates, electrode plates, connecting plates, and gaskets are mounted on a base plate 101 after being assembled with the cores. The sintering mold includes a base block 2. Six first limiting blocks 201 are provided around the bottom edge of the base block. The six first limiting blocks limit and fix the front, back, left, and right sides of the base plate. A first through hole 202 is opened in the middle of the base plate to allow multiple electrode plates, connecting plates, and cores to pass through simultaneously. A first stepped surface 203 is opened along the edge of the first through hole on the bottom surface of the base plate. An integrally formed limiting boss 204 is provided in the first through hole. The platform is parallel to the front and rear sidewalls of the first through hole. The left end of the limiting boss is connected to the left sidewall of the first through hole, and the right end of the limiting boss is spaced apart from the right sidewall of the first through hole. The limiting boss also includes a limiting protrusion 2041 and a limiting baffle 2042. The limiting protrusion and the limiting baffle are opposite to the rear sidewall of the first through hole. The bottom surface of the limiting boss has a second step surface 205 that is the same height as the first step surface. The first step surface on the left side of the limiting baffle is used to accommodate three first ceramic pieces 102 arranged side by side. The middle part of the first ceramic piece abuts against the second step surface. The first step surface on the right side of the limiting baffle is used to accommodate the second ceramic piece 103. The first step surfaces of the front and rear sidewalls of the first through hole both have first grooves 206 for separating the tube core. The bottom surface of the closed end has a third stepped surface 207. A fourth stepped surface 208, corresponding to the third stepped surface, is formed on the second stepped surface of the limiting boss. The third and fourth stepped surfaces are of the same height and together accommodate three side-by-side gaskets. The two ends of the three gaskets abut against the third stepped surface, and the middle of the three gaskets abut against the fourth stepped surface. The first groove on the rear sidewall of the first through hole cooperates with the limiting protrusion and the limiting baffle to respectively limit the displacement of the first core 106, the second core 107, and the third core 108. A first slot 209 for inserting the first electrode 1013 is formed at the top of the left sidewall of the first through hole. A second slot 2010 for inserting the second electrode 1014 is formed at the lower part of the left sidewall of the first through hole. The right side of the first through hole... A third slot 2011 for inserting the fifth electrode 1017 is provided on the top of the side wall. A fourth slot 2012 for inserting the controllable die 1019 is provided in the middle of the right side wall of the first through hole. A second limiting block 2013 is provided on the right side of the limiting baffle. The second limiting block cooperates with the fourth slot to limit the controllable die. A fifth slot 2014 for inserting the sixth electrode 1022 is provided on the rear side wall of the first through hole. A fifth stepped surface 2015 for accommodating the third ceramic plate 104 is also provided on the bottom surface of the base block. A sixth slot 2016 for inserting two seventh electrodes 1023 is provided on the bottom wall of the fifth stepped surface. A cover plate 3 is provided above the top surface of the base block. A sixth stepped surface 2017 for accommodating the cover plate is provided on the top surface of the base block and the top surface of the limiting boss.The cover plate has seven slots 301, eight slots 302, ninth slots 303, tenth slots 304, and eleventh slots 305 for inserting the first electrode 1013, second electrode 1014, third electrode 1015, fourth electrode 1016, and sixth electrode 1022. Symmetrically arranged second through holes 2018 are provided on both sides of the base block. These second through holes facilitate flux evaporation and also contribute to weight reduction.

[0030] A method for using a sintering mold for a three-phase rectifier controllable module:

[0031] Step 1: Invert the base block and place the three copper pads in the corresponding third and fourth step surfaces respectively, so that the three copper pads are snapped together and fixed.

[0032] Step 2: Place three first ceramic pieces in the first step surface on the left side of the limiting baffle, place the second ceramic piece in the first step surface on the right side of the limiting baffle, and place the third ceramic piece in the fifth step surface.

[0033] Step 3: Use six first limiting blocks to restrict and fix the front, back, left and right sides of the base plate;

[0034] Step 4: Press down the base plate and flip the base block;

[0035] Step 5: Place the first core, second core, third core, fourth core, fifth core and sixth core on the top surface of the three copper pads in sequence. The first groove on the rear side wall of the first through hole cooperates with the limiting protrusion and the limiting baffle to restrict the displacement of the first core, second core and third core respectively. The fourth core, fifth core and sixth core are placed separately through the first groove on the front side wall of the first through hole.

[0036] Step 6: Place the first connecting piece on the top surface of the first die, the second die, and the third die, and place the first electrode plate through the first slot on the top surface of the right end of the first connecting piece;

[0037] Step 7: Place the fifth electrode on the top surface of the second ceramic plate, so that the tab of the fifth electrode passes through the third slot;

[0038] Step 8: Fix the controllable die to the top surface of the fifth electrode by limiting it with the second limiting block and the fourth slot. Place the fourth ceramic plate at the end of the horizontal section of the fifth electrode near the tab. The top surface of the controllable die and the top surface of the fourth ceramic plate are connected by the third connecting piece. Place the sixth electrode through the fifth slot at the end of the third connecting piece near the fourth ceramic plate.

[0039] Step 9: Place the second connecting piece on the top surface of the fourth, fifth and sixth cores, and connect the left end of the second connecting piece to the end of the horizontal section of the fifth electrode that is away from the tab.

[0040] Step 10: Place the second, third, and fourth electrodes in the middle of the three pads respectively;

[0041] Step 11: Lower the cap from top to bottom, so that the first, second, third, fourth and sixth pole pieces pass through the seventh, eighth, ninth, tenth and eleventh slots respectively, and finally place the bottom surface of the cap into the sixth step surface;

[0042] It should be noted that before assembly, the corresponding parts of the above-mentioned three-phase rectifier controllable module are pre-applied with solder paste. After assembly, the parts are placed in a sintering furnace for sintering. During the sintering process, the parts are restricted and do not move easily, thereby reducing the solder void rate and protecting the core from damage.

[0043] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A three-phase rectifier controllable module sintering mold, comprising a three-phase rectifier controllable sintering module (1) and a sintering mold, the three-phase rectifier controllable sintering module (1) comprising a plurality of pipe cores and a plurality of ceramic sheets, pole pieces, connecting pieces and gaskets corresponding to the pipe cores, the ceramic sheets, pole pieces, connecting pieces and gaskets being mounted on a bottom plate after being combined with the pipe cores, characterized in that: The sintering mold includes a base block (2). A first limiting block (201) is provided around the bottom edge of the base block. Multiple first limiting blocks limit and fix the base plate (101). A first through hole (202) is opened in the center of the base plate, allowing multiple electrode plates, connecting plates, and cores to pass through simultaneously. A first stepped surface (203) is opened along the edge of the first through hole on the bottom surface of the base plate. A limiting boss (204) is provided inside the first through hole. The limiting boss is parallel to the front and rear sidewalls of the first through hole. The left end of the limiting boss is fixed to the left sidewall of the first through hole, and the right end of the limiting boss is spaced apart from the right sidewall of the first through hole. It also includes a limiting protrusion (2041) and a limiting baffle (2042). The limiting protrusion and the limiting baffle are arranged opposite to the rear sidewall of the first through hole. The bottom surface of the limiting protrusion has a second step surface (205) that is the same height as the first step surface. The first step surface on the left side of the limiting baffle is used to accommodate three first ceramic pieces (102) arranged side by side. The first step surface on the right side of the limiting baffle is used to accommodate second ceramic pieces (103). The first step surfaces of the front and rear sidewalls of the first through hole are both provided with first grooves (206) for separating the tube core. The bottom surface of the closed end of the first groove is provided with a third step surface (207). A fourth step surface (208) corresponding to the third step surface is formed on the second step surface of the platform. The third step surface and the fourth step surface are of the same height and are used together to accommodate three pads (105) arranged side by side. The first groove on the rear side wall of the first through hole cooperates with the limiting protrusion and the limiting baffle to restrict the displacement of the first core (106), the second core (107) and the third core (108) respectively. A first slot (209) for inserting the first electrode (1013) is formed on the top of the left side wall of the first through hole. A second slot (2010) for inserting the second electrode (1014) is formed on the lower part of the left side wall of the first through hole. The top right side wall of the first through hole has a third slot (2011) for inserting the fifth electrode (1017), the middle right side wall of the first through hole has a fourth slot (2012) for inserting the controllable core (1019), the rear side wall of the first through hole has a fifth slot (2014) for inserting the sixth electrode (1022), the bottom surface of the base block also has a fifth stepped surface (2015) for accommodating the third ceramic plate (104), the bottom wall of the fifth stepped surface has a sixth slot (2016) for inserting the seventh electrode (1023), and a cover plate (3) is provided above the top surface of the base block. ​ 2. The sintering mold for a three-phase rectifier controllable module according to claim 1, characterized in that: The top surface of the base block and the top surface of the limiting boss are provided with a sixth step surface for accommodating the cover plate (2017).

3. The sintering mold for a three-phase rectifier controllable module according to claim 1, characterized in that: The cover plate has a seventh slot (301), an eighth slot (302), a ninth slot (303), a tenth slot (304), and an eleventh slot (305) for inserting the first pole piece (1013), the second pole piece (1014), the third pole piece (1015), the fourth pole piece (1016), and the sixth pole piece (1022).

4. The sintering mold for a three-phase rectifier controllable module according to claim 1, characterized in that: The base block has symmetrically arranged second through holes on both sides (2018).

5. The sintering mold for a three-phase rectifier controllable module according to claim 1, characterized in that: The right side of the limiting baffle is provided with a second limiting block (2013), which cooperates with the fourth slot to limit the controllable die.

Images