Mounting and positioning jig for power device
By designing and installing positioning fixtures, the problem of inaccurate positioning of power devices on PCBs was solved, enabling simultaneous installation and efficient soldering of multiple devices, thereby improving the production and maintenance efficiency of electronic equipment.
Patent Information
- Application Number
- CN202423108447.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing technologies, when power devices are mounted on PCBs, there are problems such as inaccurate positioning and unreasonable pin length, which lead to poor soldering and electrical connection failures, resulting in low efficiency, especially in batch operations and maintenance.
Design an installation and positioning fixture, including a fixed lower base plate, a movable upper top plate, a fixed guide rod, a limiting groove, and a support spring. Through the cooperation of the guide ramp and the limiting spring, accurate positioning of power devices and simultaneous installation of multiple devices can be achieved.
It improves the mounting accuracy and efficiency of power devices on PCBs, is suitable for mass production and maintenance, reduces operation time costs, and ensures soldering quality and equipment reliability.
Smart Images
Figure CN223745004U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the installation positioning technical field of power device, especially in kind for power device's installation positioning fixture. BACKGROUND
[0002] With the rapid development of power electronics technology, the volume of power converter is smaller and smaller, the power density is higher and higher, and the internal power unit also develops towards the modular way. The function of electronic equipment is increasingly complex, and the performance and installation accuracy of power device are also increasingly high. In the process of installing power device on PCB, the traditional installation method often depends on manual alignment, which is prone to inaccurate alignment of the reserved length of power device pin to pad, and the pin and the corresponding pad and via hole on the PCB. Moreover, during the welding operation, the power device is prone to displacement due to external force or solder flow, etc. factors, thereby causing welding defects, electrical connection failures and many other problems, which seriously affect the overall quality and performance of the equipment. In view of this, it is particularly important to develop a power device installation positioning fixture that can effectively solve the above problems. SUMMARY
[0003] The main purpose of the utility model is to meet the positioning needs of power device installation on printed circuit board (PCB), provide a positioning fixture with accurate positioning, convenient operation and simultaneous installation of multiple devices, to ensure that the power device can be accurately and efficiently welded on the PCB, thereby improving the quality and efficiency in the production and maintenance process of electronic equipment, and ensuring the reliable operation of the entire electronic equipment.
[0004] To achieve the above purpose, the utility model provides a kind of installation positioning fixture for power device, comprising:
[0005] Installation fixed lower bottom plate: the installation fixed lower bottom plate is provided with installation slot for installing power device and PCB board, fixed guide rod is arranged in the installation slot, limit slot is arranged above the fixed guide rod, and guide slope is arranged at the top of the fixed guide rod;
[0006] Movable upper top plate: the bottom of the movable upper top plate is provided with positioning boss of hollow structure and supporting spring, the supporting spring is sleeved outside the positioning boss, one end of the supporting spring is in abutment with the bottom of the movable upper top plate, the other end is in abutment with the top surface of the PCB board, the top surface of the movable upper top plate is provided with limiting spring and fixed claw, the limiting spring is nested inside the fixed claw, and buffer gasket is arranged between the PCB board and the power device;In use, the fixed guide rod passes through the power device, PCB board and movable upper top plate in sequence, and one end of the limiting spring is clamped into the limiting slot.
[0007] The further technical scheme of the utility model discloses, the minimum compression length of the supporting spring is less than the positioning boss minus the thickness of the PCB board.
[0008] The further technical scheme of the utility model discloses, the fixed claw is inverted L shape.
[0009] The further technical scheme of the utility model discloses, the fixed guide rod is circular, and a platform is arranged at the top of the fixed guide rod.
[0010] The further technical scheme of the utility model discloses, the both ends of the limiting spring are provided with handles.
[0011] The further technical scheme of the utility model discloses, the mounting hole that is adapted to the fixed guide rod is formed in the power device.
[0012] The further technical scheme of the utility model discloses, one end of the buffer gasket is provided with a positioning column, and a positioning hole corresponding to the positioning column is formed in the PCB board.
[0013] The utility model discloses a mounting and positioning jig for power device, which is designed to allow multiple power devices to be placed and installed simultaneously according to the layout of the PCB board and actual production or maintenance requirements, which greatly improves the work efficiency, especially suitable for batch production scenarios or maintenance scenarios requiring simultaneous replacement of multiple power devices, can effectively save time and cost, improve overall work efficiency, is simple to install, accurate in positioning, can realize simultaneous positioning and installation of multiple devices, and is suitable for maintenance and production. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to the structures shown in these drawings without creating any creative labor.
[0015] Figure 1 It is the whole structure schematic diagram of the preferable embodiment of the utility model for the mounting and positioning jig for power device.
[0016] Figure 2 It is the exploded structure schematic diagram of the preferable embodiment of the utility model for the mounting and positioning jig for power device.
[0017] EXPLANATION OF DRAWINGS:
[0018] The installation fixed lower bottom plate 1; the movable upper top plate 2; the power device 3; the PCB plate 4; the installation slot 5; the fixed guide rod 6; the limiting slot 7; the guide slope 8; the positioning boss 9; the supporting spring 10; the limiting spring 11; the fixed claw 12; the buffer gasket 13; and the positioning column 14.
[0019] The realization, functional features and advantages of the utility model will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0021] Please refer to Figure 1 and Figure 2 The utility model proposes a kind of installation positioning jig for power device, and the utility model for power device installation positioning jig preferred embodiment includes installation fixed lower bottom plate 1 and movable upper top plate 2.
[0022] Installation fixed lower bottom plate 1 is provided with installation slot 5 for installing power device 3 and PCB plate 4, installation slot 5 is provided with fixed guide rod 6, the top of fixed guide rod 6 is provided with limiting slot 7, and the top of fixed guide rod 6 is provided with guide slope 8.
[0023] The bottom of movable upper top plate 2 is provided with positioning boss 9 and supporting spring 10 of hollow structure, supporting spring 10 is sleeved on the outside of positioning boss 9, one end of supporting spring 10 is in abutment with the bottom of movable upper top plate 2, the other end is in abutment with the top surface of PCB plate 4, the top surface of movable upper top plate 2 is provided with limiting spring 11 and fixed claw 12, and limiting spring 11 is nested inside fixed claw 12.
[0024] Guide slope 8 greatly facilitates the insertion operation of the mounting hole of power device 3, reduces installation difficulty, and during the sliding process of movable upper top plate 2 to fixed guide rod 6, limiting spring 11 is automatically opened by circular fixed guide rod 6 guide slope 8, until limiting spring 11 is slid into limiting slot 7 and completes limiting locking, so that the whole power device 3 installation process becomes simple and efficient, effectively reduces the working strength of operator, and shortens operation time.
[0025] Buffer gasket 13 is arranged between PCB plate 4 and power device 3. Buffer gasket 13 can not only buffer the stress between PCB plate 4 and power device 3, but also adjust the distance from PCB plate 4 to power device 3 by different thicknesses.
[0026] In use, the fixed guide rod 6 is sequentially inserted through the power device 3, the PCB board 4 and the movable upper top plate 2, and one end of the limiting spring 11 is clamped into the limiting groove 7.
[0027] The power device 3 after pin forming can be installed on the installation groove 5 of the installation fixed lower bottom plate 1, and combined with the installation fixed lower bottom plate 1 to pass through the buffer, the solder pad of the PCB board 4, the installation hole and the movable upper top plate 2, so as to realize the fixing and positioning of the power device 3, and effectively solve the problems of inaccurate positioning of manual placement device, unreasonable pin reserved length, unsuitable batch operation and maintenance and the like in the background art. The installation positioning jig for the power device is simple to install, accurate in positioning, and can realize simultaneous positioning and installation of multiple devices, and is suitable for maintenance and production use.
[0028] Further, in the embodiment, the supporting spring 10 can adopt a structure with one end large and the other end small, and the small end is just assembled to the root of the positioning boss 9 without loosening. The minimum compression length of the supporting spring 10 is less than the thickness of the PCB board 4 minus the positioning boss 9, so as to be able to press the PCB board 4 and the power device 3 tightly.
[0029] Further, in the embodiment, the fixed claw 12 is inverted L-shaped. The inverted L-shaped fixed claw 12 not only can limit the maximum stroke and the minimum stroke of the limiting spring 11, prevent the limiting spring 11 from deforming too much and causing metal fatigue, but also has the effect of preventing falling off, and the movable part within the maximum stroke and the minimum stroke of the limiting spring 11 will not fall off.
[0030] Further, in the embodiment, the fixed guide rod 6 is circular, and a platform is arranged at the top of the fixed guide rod 6, so as to prevent the top from being too sharp to cause a stabbing accident.
[0031] Further, in the embodiment, the two ends of the limiting spring 11 are provided with handles, so as to facilitate unlocking of the limiting spring 11 when it is locked.
[0032] Further, in the embodiment, the power device 3 is provided with an installation hole matched with the fixed guide rod 6. The installation hole is matched with the fixed guide rod 6.
[0033] Further, in the embodiment, one end of the buffer gasket 13 is provided with a positioning column 14, and the PCB board 4 is provided with a positioning hole corresponding to the positioning column 14, and the positioning column 14 cooperates with the positioning hole to position the buffer gasket 13.
[0034] The PCB board 4 is also provided with a via hole matched with the positioning boss 9, and the outer diameter of the positioning boss 9 is matched with the size of the via hole.
[0035] The assembling process and working principle of the utility model for the mounting and positioning jig of the power device are described below.
[0036] During assembling, the mounting hole of the power device 3 is first passed through the fixed guide rod 6 until the back of the power device 3 and the wall surface of the mounting groove 5 are attached.
[0037] Then the buffer gasket 13 is placed below the PCB board 4 so that the two positioning columns 14 of the buffer gasket 13 are accurately inserted into the corresponding positioning holes of the PCB board 4, the positioning and installation of the buffer gasket 13 are completed, and then the shaped power device 3 and the mounting and fixing lower bottom plate 1 are passed through the corresponding solder pad and via hole of the PCB board 4 until the front of the power device 3 and the buffer gasket 13 are completely attached.
[0038] After the power device 3 is placed, the positioning boss 9 of the movable upper top plate 2 is passed through the fixed guide rod 6 and is aligned with the via hole of the PCB board 4, and then it is slid downward along the fixed guide rod 6 so as to be close to the power device 3 and the PCB board 4. During the sliding process of the movable upper top plate 2 along the fixed guide rod 6, the limiting spring 11 is automatically opened by the guide slope 8 of the fixed guide rod 6, and as the movable upper top plate 2 continues to slide downward, when the limiting spring 11 slides to the position of the limiting groove 7 on the circular fixed guide rod 6, one end of the limiting spring 11 is embedded in the limiting groove 7, the limiting locking is completed, and at the same time, the supporting spring 10 starts to be stressed during the pressing process, the spring force generated during the pressing process compresses the PCB board 4, the buffer gasket 13, the power device 3 and the mounting and fixing lower bottom plate 1, and the whole mounting and positioning jig completes the positioning and installation of the power device 3 on the PCB board 4.
[0039] Then the welding operation of the power device 3 is carried out, and when the jig needs to be disassembled after the welding is completed, the operator first holds the handle at the root of the limiting spring 11 and pulls or rotates the handle inward (the specific operation mode is determined according to the actual design), so that the limiting spring 11 is separated from the limiting groove 7 and the limiting locking is released. Then the movable upper top plate 2 is slowly lifted and slid upward along the circular fixed guide rod 6 until it exits the guide rod, and finally the mounting and fixing lower bottom plate 1 is taken out to complete the disassembly of the jig.
[0040] The mounting and positioning jig for the power device in the utility model allows multiple power devices 3 to be placed and installed for welding according to the layout of the PCB board 4 and the actual production or maintenance requirements in the structural design, which greatly improves the work efficiency, especially suitable for batch production scenes or maintenance situations requiring simultaneous replacement of multiple power devices 3, can effectively save time cost and improve overall work efficiency.
[0041] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made under the concept of the present application, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.
Claims
1. A mounting positioning jig for a power device, characterized by, Comprising: The installation fixed lower bottom plate is provided with installation grooves for installing power devices and PCB boards, fixed guide rods are arranged in the installation grooves, limit grooves are arranged above the fixed guide rods, and guide slopes are arranged on the top of the fixed guide rods; The bottom of the movable upper top plate is provided with a positioning boss with a hollow structure and a supporting spring, the supporting spring is sleeved outside the positioning boss, one end of the supporting spring abuts against the bottom of the movable upper top plate, the other end of the supporting spring abuts against the top surface of the PCB board, the top surface of the movable upper top plate is provided with a limit spring and a fixed claw, the limit spring is nested inside the fixed claw, and a buffer gasket is arranged between the PCB board and the power device; in use, the fixed guide rod passes through the power device, the PCB board and the movable upper top plate in sequence, and one end of the limit spring is clamped into the limit groove.
2. The mounting positioning jig for a power device according to claim 1, wherein The minimum compression length of the supporting spring is less than the positioning boss minus the thickness of the PCB board.
3. The mounting positioning jig for a power device according to claim 1, wherein The fixed claw is inverted L-shaped.
4. The mounting positioning jig for a power device according to claim 1, wherein The fixed guide rod is circular, and a platform is arranged on the top of the fixed guide rod.
5. The mounting positioning jig for a power device according to Claim 1, wherein Both ends of the limit spring are provided with handles.
6. The mounting positioning jig for a power device according to Claim 1, wherein The power device is provided with an installation hole matched with the fixed guide rod.
7. The mounting positioning jig for a power device according to Claim 1, wherein One end of the buffer gasket is provided with a positioning column, and the PCB board is provided with a positioning hole corresponding to the positioning column.