TPAK terminal ultrasonic welding tool
The ultrasonic welding fixture for TPAK terminals solves the problems of long welding time and flux residue in existing technologies, achieving efficient and stable welding results.
Patent Information
- Application Number
- CN202520273228.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In the existing technology, the soldering of TPAK terminals uses solder paste process and requires ECT reflow oven equipment, which has the problems of long soldering time and flux residue.
The ultrasonic welding fixture for TPAK terminals, including a base, ultrasonic welding components, vacuum holes, positioning pins, and active brazing plate, is used to achieve efficient welding of TPAK terminals, thus avoiding the need for ECT reflow oven equipment.
It improves welding efficiency, reduces flux residue, and enhances welding quality and stability.
Smart Images
Figure CN223699628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic component welding equipment technology, and in particular to an ultrasonic welding fixture for TPAK terminals. Background Technology
[0002] Soldering TPAK (Thermal Pad Array Package) terminals is a critical process in electronic device manufacturing. Traditional TPAK terminal soldering methods have many problems.
[0003] In existing technologies, the soldering of the TPAK copper frame and the active solder plate uses a solder paste process. This soldering process requires the use of an ECT reflow oven, which has problems such as long soldering time and flux residue.
[0004] To address the above issues, we propose an ultrasonic welding fixture for TPAK terminals. Utility Model Content
[0005] The purpose of this utility model is to provide an ultrasonic welding fixture for TPAK terminals, which solves the problem that in the prior art, the welding of TPAK copper frame and active solder plate adopts solder paste process, which requires the use of ECT reflow oven equipment for welding, and has the problems of long welding time and flux residue.
[0006] To achieve the above objectives, this utility model employs a TPAK terminal ultrasonic welding fixture, comprising a base and an ultrasonic welding assembly. The ultrasonic welding assembly includes a vacuum hole, a positioning pin, and an active brazing plate. The vacuum hole is fixedly connected to the base and located inside and above the base, and is perpendicular to the base. The positioning pin is detachably connected to the base and located inside the base, and is positioned around the vacuum hole, also perpendicular to the base. The active brazing plate is detachably connected to the base and located above the base, above the positioning pin and the vacuum hole, and is also horizontal to the base.
[0007] The ultrasonic welding assembly further includes a pad and an internal hexagon screw. The pad is detachably connected to the active brazing plate and is located below the active brazing plate. The pad is positioned above the base. The internal hexagon screw passes through the pad and is rotatably connected to the active brazing plate. It is located below the active brazing plate and is positioned below the pad. The internal hexagon screw is also positioned above the base.
[0008] The ultrasonic welding assembly further includes a copper frame pressure plate and a top hexagonal screw. The copper frame pressure plate is detachably connected to the base and is located above the base. The copper frame pressure plate is also disposed on the outer surface of the active brazing plate pressure plate and above the positioning pin. The top hexagonal screw passes through the copper frame pressure plate and is detachably connected to the base, located above the base, and is perpendicular to the copper frame pressure plate.
[0009] The TPAK terminal ultrasonic welding fixture further includes a copper frame and an active solder plate. The copper frame is detachably connected to the copper frame pressure plate and is located below the copper frame pressure plate. The center of the copper frame is also located below the active solder plate pressure plate. The active solder plate is detachably connected to the copper frame and is located below the copper frame. The active solder plate is located below the active solder plate pressure plate and is also located above the inside of the vacuum hole.
[0010] This utility model discloses an ultrasonic welding fixture for TPAK terminals, comprising a base and an ultrasonic welding assembly. The ultrasonic welding assembly includes a vacuum hole, a positioning pin, and an active solder plate. The vacuum hole is fixedly connected to the base and located inside and above the base, and is perpendicular to the base. The positioning pin is detachably connected to the base and located inside the base, and is positioned around the vacuum hole, also perpendicular to the base. The active solder plate is detachably connected to the base and located above the base, above the positioning pin and the vacuum hole, and is also horizontal to the base. By adding the ultrasonic welding assembly, the welding preparation work for TPAK terminals can be completed in conjunction with the copper frame and the active solder plate. When used with subsequent welding equipment, this effectively solves the problems of long welding time and flux residue associated with the solder paste process used in the prior art for welding TPAK copper frames and active solder plates, which requires an ECT reflow oven. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2This is an exploded view of the overall structure of this utility model.
[0014] Figure 3 This is a schematic diagram illustrating the overall structure of this utility model, which integrates the copper frame and the active brazing plate.
[0015] 1-Top hexagonal screw, 2-Copper frame pressure plate, 3-Active brazing plate pressure plate, 4-Pan block, 5-Internal hexagonal screw, 6-Positioning pin, 7-Base, 8-Vacuum hole, 901-Copper frame, 902-Active brazing plate. Detailed Implementation
[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0017] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is an exploded view of the overall structure of this utility model. Figure 3 This is a schematic diagram illustrating the overall structure of this utility model, which integrates the copper frame and the active brazing plate.
[0018] This utility model provides an ultrasonic welding fixture for TPAK terminals, including a base 7, an ultrasonic welding assembly, a copper frame 901, and an active solder plate 902. The ultrasonic welding assembly includes a vacuum hole 8, a positioning pin 6, an active solder plate pressure plate 3, a pad 4, an internal hex screw 5, a copper frame pressure plate 2, and a top hex screw 1. This solution solves the problem in the prior art where the welding of the TPAK copper frame and active solder plate uses solder paste, which requires an ECT reflow oven and results in long welding times and flux residue. It is understood that the aforementioned solution allows the base 7 to be stably placed on the ultrasonic welding equipment during use. On the work platform, ensure that the base 7 fits tightly against the work platform. Use the matching fixing device to firmly fix the base 7 on the work platform to prevent displacement of the base 7 during the welding process. Carefully check the slot on the base 7 to ensure that there are no foreign objects in the slot. Slowly place the active solder plate 902 into the slot of the base 7, so that the active solder plate 902 and the slot are precisely matched, ensuring that the position of the active solder plate 902 is accurate. Similarly, place the copper frame 901 into the slot of the base 7, so that it is above the active solder plate 902, and the center of the copper frame 901 is aligned with the active solder plate 902. With the centers aligned on the same vertical line to ensure relative positional accuracy, the active solder plate 3 is placed on the active solder plate 902 along the positioning pin 6. The positioning pin 6 provides precise positioning, ensuring the accurate placement of the active solder plate 3. Then, the active solder plate 3 and the active solder plate 902 are fixed to the base 7 using the top hexagonal screw 1. By tightening the top hexagonal screw 1, the active solder plate 3 is firmly pressed onto the active solder plate 902, ensuring that the active solder plate 902 will not move during welding. The copper frame plate 2 is then placed on the base 7 along the positioning pin 6. On the copper frame 901, the positioning pin 6 is used to ensure the accurate position of the copper frame pressure plate 2. Then, the top hexagonal screw 1 is used to pass through the copper frame pressure plate 2 and connect it to the base 7. Tighten the top hexagonal screw 1 to make the copper frame pressure plate 2 press tightly on the copper frame 901 to prevent the copper frame 901 from shifting during welding. Check whether the connection between the vacuum hole 8 and the base 7 is stable to ensure the normal operation of the vacuum system. The active brazing plate 902 is adsorbed onto the base 7 through the vacuum hole 8 to enhance the stability of the active brazing plate 902 during the welding process and further ensure the welding quality.
[0019] In this specific embodiment, the vacuum hole 8 is fixedly connected to the base 7 and located inside and above the base 7, and the vacuum hole 8 is perpendicular to the base 7. The positioning pin 6 is detachably connected to the base 7 and located inside the base 7, and the positioning pin 6 is located around the vacuum hole 8. The positioning pin 6 is also perpendicular to the base 7. The active brazing plate 3 is detachably connected to the base 7 and located above the base 7. The active brazing plate 3 is located above the positioning pin 6 and the vacuum hole 8. The plate pressure plate 3 is also horizontally positioned with the base 7, placing the base 7 stably on the working platform of the ultrasonic welding equipment. This ensures that the base 7 is in close contact with the working platform. The base 7 is firmly fixed to the working platform using a matching fixing device to prevent displacement of the base 7 during welding. The connection between the vacuum hole 8 and the base 7 is checked to ensure the vacuum system is operating normally. The active brazing plate 902 is adsorbed onto the base 7 through the vacuum hole 8, enhancing the stability of the active brazing plate 902 during welding and further ensuring welding quality.
[0020] The pad 4 is detachably connected to the active solder plate 3 and is located below the active solder plate 3. The pad 4 is positioned above the base 7. The hexagonal screw 5 passes through the pad 4 and is rotatably connected to the active solder plate 3. The hexagonal screw 5 is located below the active solder plate 3 and is also positioned above the base 7. The active solder plate 3 is placed on the active solder plate 902 along the positioning pin 6. The positioning pin 6 plays a precise positioning role to ensure that the position of the active solder plate 3 is accurate. The active solder plate 3 and the active solder plate 902 are fixed on the base 7 using the top hexagonal screw 1. By tightening the top hexagonal screw 1, the active solder plate 3 is tightly pressed on the active solder plate 902, ensuring that the active solder plate 902 will not move during the welding process.
[0021] Secondly, the copper frame pressure plate 2 is detachably connected to the base 7 and is located above the base 7. The copper frame pressure plate 2 is also disposed on the outer surface of the active solder plate pressure plate 3 and above the positioning pin 6. The top hexagonal screw 1 passes through the copper frame pressure plate 2 and is detachably connected to the base 7, and is located above the base 7. The top hexagonal screw 1 is perpendicular to the copper frame pressure plate 2. The copper frame pressure plate 2 is placed on the copper frame 901 along the positioning pin 6. Similarly, the positioning pin 6 is used to ensure the accurate position of the copper frame pressure plate 2. Then, the top hexagonal screw 1 passes through the copper frame pressure plate 2 and is detachably connected to the base 7. The top hexagonal screw 1 is tightened so that the copper frame pressure plate 2 is tightly pressed on the copper frame 901 to prevent the copper frame 901 from shifting during welding.
[0022] Simultaneously, the copper frame 901 is detachably connected to the copper frame pressure plate 2 and is located below the copper frame pressure plate 2. The center of the copper frame 901 is also located below the active solder plate pressure plate 3. The active solder plate 902 is detachably connected to the copper frame 901 and is located below the copper frame 901. The active solder plate 902 is located below the active solder plate pressure plate 3 and is also located above the interior of the vacuum hole 8. The copper frame 901 is also placed into the slot of the base 7, so that it is located above the active solder plate 902. The center of the copper frame 901 and the center of the active solder plate 902 are on the same vertical line to ensure the relative positional accuracy of the two. The slot on the base 7 is carefully checked to ensure that there are no foreign objects in the slot. The active solder plate 902 is slowly placed into the slot of the base 7 so that the active solder plate 902 and the slot are precisely matched to ensure that the position of the active solder plate 902 is accurate.
[0023] When using this invention, place the base 7 stably on the working platform of the ultrasonic welding equipment, ensuring that the base 7 is tightly fitted to the working platform. Use the matching fixing device to firmly fix the base 7 to the working platform to prevent displacement of the base 7 during welding. Carefully check the slots on the base 7 to ensure that there are no foreign objects in the slots. Slowly place the active brazing plate 902 into the slot of the base 7, ensuring that the active brazing plate 902 and the slot are precisely matched, and ensuring that the position of the active brazing plate 902 is accurate. Similarly, place the copper frame 901 into the slot of the base 7, positioning it above the active brazing plate 902, and ensuring that the center of the copper frame 901 and the center of the active brazing plate 902 are on the same vertical line, ensuring the relative positional accuracy of the two. Place the active brazing plate pressure plate 3 on the active brazing plate 902 along the positioning pin 6. The positioning pin 6 plays a precise positioning role, ensuring that the position of the active brazing plate pressure plate 3 is accurate. Then, use the top... The active solder plate 3 and the active solder plate 902 are fixed to the base 7 by the hexagonal screw 1. By tightening the hexagonal screw 1, the active solder plate 3 is pressed tightly onto the active solder plate 902, ensuring that the active solder plate 902 will not move during the welding process. The copper frame plate 2 is placed on the copper frame 901 along the positioning pin 6. Similarly, the positioning pin 6 is used to ensure that the position of the copper frame plate 2 is accurate. Then, the hexagonal screw 1 is used to detach and connect the copper frame plate 2 to the base 7. Tightening the hexagonal screw 1 ensures that the copper frame plate 2 is pressed tightly onto the copper frame 901, preventing the copper frame 901 from shifting during welding. Check whether the connection between the vacuum hole 8 and the base 7 is secure to ensure that the vacuum system is operating normally. The active solder plate 902 is adsorbed onto the base 7 through the vacuum hole 8, which enhances the stability of the active solder plate 902 during the welding process and further ensures the welding quality.
[0024] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A TPAK terminal ultrasonic welding fixture, comprising a base, characterized in that, It also includes an ultrasonic welding assembly, which includes a vacuum hole, a positioning pin, and an active brazing plate. The vacuum hole is fixedly connected to the base and located inside and above the base, and is perpendicular to the base. The positioning pin is detachably connected to the base and located inside the base, and is located around the vacuum hole, and is also perpendicular to the base. The active brazing plate is detachably connected to the base and located above the base, and is located above the positioning pin and the vacuum hole, and is also horizontal to the base.
2. The ultrasonic welding fixture for TPAK terminals as described in claim 1, characterized in that, The ultrasonic welding assembly further includes a pad and an internal hex screw. The pad is detachably connected to the active brazing plate and is located below the active brazing plate. The pad is positioned above the base. The internal hex screw passes through the pad and is rotatably connected to the active brazing plate. It is located below the active brazing plate and is positioned below the pad. The internal hex screw is also positioned above the base.
3. The ultrasonic welding fixture for TPAK terminals as described in claim 2, characterized in that, The ultrasonic welding assembly further includes a copper frame pressure plate and a top hexagonal screw. The copper frame pressure plate is detachably connected to the base and is located above the base. The copper frame pressure plate is also disposed on the outer surface of the active brazing plate pressure plate and above the positioning pin. The top hexagonal screw passes through the copper frame pressure plate and is detachably connected to the base, located above the base, and is perpendicular to the copper frame pressure plate.
4. The ultrasonic welding fixture for TPAK terminals as described in claim 3, characterized in that, The TPAK terminal ultrasonic welding fixture also includes a copper frame and an active solder plate. The copper frame is detachably connected to the copper frame pressure plate and is located below the copper frame pressure plate. The center of the copper frame is also located below the active solder plate pressure plate. The active solder plate is detachably connected to the copper frame and is located below the copper frame. The active solder plate is located below the active solder plate pressure plate and is also located above the inside of the vacuum hole.