Radiating fin and MOS (Metal Oxide Semiconductor) assembly jig
By automatically clamping different types of MOS through a motor-driven gear and threaded rod system, and combining the electric telescopic rod and the heat sink of the horizontal sensor with the MOS assembly fixture, the problem of needing to redesign existing fixtures is solved, and an efficient and low-cost assembly process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-20
AI Technical Summary
Existing heat sinks and MOS assembly fixtures need to be redesigned and remanufactured when the model changes, which leads to increased material costs and production time.
A heat sink and MOS assembly fixture is used, which automatically clamps and positions different types of MOS through a motor-driven gear and threaded rod system. Combined with an electric telescopic rod and a level sensor, the equipment is kept level, simplifying the assembly process.
It enables stable clamping and assembly of various types of heat sinks and MOSFETs without the need to redesign fixtures, reducing material costs and production time, and improving assembly efficiency and quality.
Smart Images

Figure CN224022202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of part assembly, especially relates to a heat dissipation fin and MOS assembly jig. BACKGROUND
[0002] MOS usually refers to metal, oxide and semiconductor, is by metal, oxide and semiconductor structure, based on this structure's common device has MOSFET and MOS capacitor, is widely used in integrated circuits, power electronics and sensor class many fields.
[0003] MOS can realize high integration and low power consumption in integrated circuits, can efficiently control electric energy in the field of power electronics, can convert non-electric quantity signal into electric signal and has high sensitivity in the aspect of sensor, so is widely applied, when MOS is used in large quantities, part MOS causes heat to be too high due to its high power consumption, needs to cooperate with heat dissipation fin and use, in order to more conveniently assemble MOS and heat dissipation fin, therefore need to use a kind of heat dissipation fin and MOS assembly jig.
[0004] The existing heat dissipation fin and MOS assembly jig has the following shortcomings:
[0005] The heat dissipation fin and MOS assembly jig on the market all adopt specific integrated type, can realize the stable positioning and clamping of heat dissipation fin and MOS to realize accurate assembly, but when the model of assembled heat dissipation fin and MOS changes, the jig needs to be redesigned and manufactured, which increases material cost and production time.
[0006] Therefore, we propose a heat dissipation fin and MOS assembly jig to solve the problems mentioned above. CONTENT OF THE UTILITY MODEL
[0007] The starting motor drives the first gear to rotate through the fixed rotating shaft, the first gear drives the second gear to rotate through the engagement, the double-direction threaded rod fixed with the second gear rotates, and through the threaded principle, the first clamping plate and the second clamping plate threaded with the double-direction threaded rod are driven to move respectively, so that the distance between the corresponding first clamping plate and the second clamping plate is reduced until the MOS is clamped, the sliding rod on the inner side of the corresponding first clamping plate and the second clamping plate is synchronously driven and drives the first clamping block and the second clamping block to move to the middle, the clamping bolt is screwed, the clamping bolt drives the first clamping block and the second clamping block to move forward and backward through the threaded relationship with the base, then the cooling fin is placed in the top groove of the first clamping block, the second clamping block, the first clamping plate and the second clamping plate, at this time, the clamping rod is moved in and out by screwing the position adjusting bolt on the side of the cooling fin until the cooling fin coincides with the MOS, the sliding block is driven to slide to the inside of the sliding warehouse by pulling the push-pull rod, the slot for preventing the cooling fin from being horizontal is exposed on the base, at this time, the alignment of the mounting hole of the cooling fin and the MOS is observed by the naked eye, the clamping work of the cooling fin and the MOS is completed, so that the problems in the background art are solved.
[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cooling fin and MOS assembling jig, including the base, the inner side of the base is fixedly connected with the motor, the output end of the motor is fixedly connected with the rotating shaft, the outer side of the rotating shaft is fixedly connected with two first gears, the top of the base is fixedly connected with two pegs, the inner side of two pegs is rotatably connected with the connecting rod, the outer side of the connecting rod is fixedly connected with two double-direction threaded rods, the outer side of two double-direction threaded rods is fixedly connected with second gears, the second gears are engaged with the first gears, the inside of the base is slidably connected with a plurality of first clamping plates, the outer side of a plurality of first clamping plates is provided with second clamping plates, the first clamping plates and the second clamping plates are respectively threaded with the double-direction threaded rods, the bottom of the base is provided with the supporting mechanism.
[0009] Preferably, the plurality of electric telescopic rods are fixed to the bottom of the base, the bottom of the base is fixedly connected with a horizontal sensor, the outer side of the horizontal sensor is provided with a signal transceiver, and the signal transceiver is fixedly connected with the base.
[0010] Preferably, the inner side of the first clamping plate and the second clamping plate is slidably connected with a sliding rod, one end of the sliding rod slidably connected with the first clamping plate is fixedly connected with a first clamping block, and the other end of the sliding rod slidably connected with the second clamping plate is fixedly connected with a second clamping block.
[0011] Preferably, the top inner side of the first clamping plate and the second clamping plate is provided with a MOS, and the top of the MOS is provided with a cooling fin.
[0012] Preferably, the top of the base is provided with a sliding block, the outer side of the sliding block is provided with a sliding chamber, the sliding chamber is fixedly connected with the base, the outer side of the sliding block is fixedly connected with a push-pull rod, and the push-pull rod is in sliding connection with the sliding chamber.
[0013] Preferably, the top of the motor is provided with a machine cover, the machine cover is fixedly connected with the base, a circular rotating groove is formed in the inner side of the first clamping block and the second clamping block, a clamping bolt is in rotating connection with the inner side of the circular rotating groove, the clamping bolt is in threaded connection with the base, and a rotating clasp is arranged on the outer side of the clamping bolt.
[0014] Preferably, the inner side of the sliding chamber is slightly larger than the size of the sliding block, a rotating handle is fixedly arranged on the outer side of the clamping bolt, and a limiting ring is fixedly arranged on the outer side of the push-pull rod.
[0015] Preferably, the inner side of the first clamping plate and the second clamping plate is in sliding connection with a clamping rod respectively, the inner side of the clamping rod is provided with a position adjusting bolt, and the position adjusting bolt is in threaded connection with the clamping rod.
[0016] Preferably, the other end of the rotating shaft is in rotating connection with the base, the inner side of the first clamping plate and the second clamping plate is in sliding connection with a first sliding rod, and the other end of the first clamping plate and the second clamping plate is in sliding connection with a second sliding rod.
[0017] Preferably, the inner side of the first clamping plate and the second clamping plate is provided with a placing groove capable of placing various types of MOS, and the inner side of the base is provided with a sliding groove capable of allowing the second sliding rod to slide forward and backward.
[0018] Compared with the prior art, the utility model has the advantages and positive effects that:
[0019] 1. In the utility model, when the heat dissipation fin is assembled with the MOS, the MOS is first placed on the inner side of the top of the first clamping plate and the second clamping plate, the motor is started to drive the first gear to drive the second gear through the rotating shaft, the bidirectional threaded rod is rotated, the first clamping plate and the second clamping plate are driven to move to clamp the MOS, the sliding rod, the first clamping block and the second clamping block are simultaneously driven to move to the middle, various specifications of MOS are clamped, then the required heat dissipation fin is placed in the upper groove of the first clamping plate, the second clamping plate, the first clamping block and the second clamping block, if the required heat dissipation fin is too wide, the clamping bolt is screwed to adjust the position of the clamping block, then the heat dissipation fin is placed in the top groove, if the hole position is misaligned, the position adjusting bolt is screwed to move the clamping rod to calibrate, if the required heat dissipation fin is too long, the push-pull rod is pulled to move the sliding block, the base exposes the seat groove, the required installation is observed, the hole position is aligned, the clamping work of the heat dissipation fin and the MOS is completed, thus through the cooperation between the movable parts, more types of heat dissipation fins and MOS can be clamped, positioned and assembled, it is unnecessary to redesign and manufacture a jig, and the material cost and production time are reduced.
[0020] 2. The utility model discloses, in order to better use this fin and MOS assembly fixture, install electric telescopic link, level sensor, signal transceiver and non -skid pad at the bottom of base, electric telescopic link is fixed with non -skid pad as the support leg of equipment and places in the equipment bottom, when the level sensor detects that the equipment is not flat because of the placed mesa, through the signal transmission to signal transceiver, after the signal integration of signal transceiver, four electric telescopic links are controlled to cooperate telescoping, so that the equipment is in the horizontal state, so that better carry out the assembly work of fin and MOS, further improve the assembly quality. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A front view structure perspective drawing of the fin and MOS assembly fixture is provided for the utility model;
[0022] Figure 2 A structure split perspective drawing of the fin and MOS assembly fixture is provided for the utility model;
[0023] Figure 3 A partial structure split perspective drawing of the fin and MOS assembly fixture is provided for the utility model;
[0024] Figure 4 A structure split perspective drawing of the support mechanism of the fin and MOS assembly fixture is provided for the utility model;
[0025] Figure 5 A rear view of the fin and MOS assembly fixture is provided for the utility model;
[0026] Figure 6 A rear side perspective drawing of the partial structure of the fin and MOS assembly fixture is provided for the utility model.
[0027] Legend: 1, base; 2, support mechanism; 201, electric telescopic link; 202, level sensor; 203, signal transceiver; 204, non -skid pad; 3, motor; 4, rotating shaft; 5, first gear; 6, second gear; 7, two -way threaded rod; 8, connecting rod; 9, peg block; 10, first clamping plate; 11, second clamping plate; 12, slide bin; 13, first sliding rod; 14, machine cover; 15, sliding rod; 16, first clamping block; 17, second clamping block; 18, second sliding rod; 19, clamping bolt; 20, MOS; 21, fin; 22, sliding block; 23, push -pull stick; 24, clamping stick; 25, position adjusting bolt. DETAILED DESCRIPTION
[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.
[0030] Example 1, as shown in the attached document Figure 1 , Figure 2 and Figure 3 As shown, a fixture for assembling a heat sink 21 and a MOS 20 includes a base 1. A motor 3 is fixedly connected to the inner side of the base 1. A rotating shaft 4 is fixedly connected to the output end of the motor 3. Two first gears 5 are fixedly connected to the outer side of the rotating shaft 4. Two bolts 9 are fixedly connected to the top of the base 1. A connecting rod 8 is rotatably connected to the inner side of the two bolts 9. Two bidirectional threaded rods 7 are fixedly connected to the outer side of the connecting rod 8. A second gear 6 is fixedly connected to the outer side of each of the two bidirectional threaded rods 7. The second gear 6 meshes with the first gear 5. Multiple first clamping plates 10 are slidably connected inside the base 1. A second clamping plate 11 is provided on the outer side of each of the multiple first clamping plates 10. The first clamping plates 10 and the second clamping plates 11 are respectively threaded to the bidirectional threaded rods 7. A support mechanism 2 is provided at the bottom of the base 1.
[0031] The effect achieved by the entire embodiment 1 is as follows: the motor 3 drives the first gear 5 to rotate through the fixed rotating shaft, the first gear 5 drives the second gear 6 meshing with it to rotate, and the bidirectional threaded rod 7 fixed to the second gear 6 rotates at the same time, and through the thread principle, drives the first clamping plate 10 and the second clamping plate 11 threaded with it to move respectively, so that the distance between the corresponding first clamping plate 10 and the second clamping plate 11 is reduced until they fit or clamp the MOS20. The sliding rod 15 sliding on the inner side of the first clamping plate 10 and the second clamping plate 11 is driven synchronously and drives the first clamping block 16 and the second clamping block 17 to move towards their respective center. When part of the MOS20 is too long, by tightening the clamping bolt 19, the clamping bolt 19 moves the clamped first clamping block 16 and the second clamping block 17 back and forth through the thread relationship between the clamping bolt 19 and the base 1.
[0032] Example 2, as Figure 2 and Figure 4 As shown, it includes an electric telescopic rod 201, multiple electric telescopic rods 201 are fixed to the bottom of the base 1, a horizontal sensor 202 is fixedly connected to the bottom of the base 1, a signal transceiver 203 is provided on the outside of the horizontal sensor 202, and the signal transceiver 203 is fixedly connected to the base 1.
[0033] The effect achieved by the entire embodiment 2 is that the electric telescopic rod 201 acts as a supporting leg of the device, the fixed anti-skid pad 204 at the end is in contact with the bottom surface on which the device is placed, when the horizontal sensor 202 detects that the surface on which the device is placed is uneven, the detected signal is transmitted to the signal transceiver 203, and the four electric telescopic rods 201 are controlled to stretch and retract in coordination by adjusting the length of each telescopic rod.
[0034] Embodiment 3, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the first clamping plate 10 and the second clamping plate 11 are slidably connected with the sliding rod 15, the other end of the sliding rod 15 slidably connected with the first clamping plate 10 is fixedly connected with the first clamping block 16, the other end of the sliding rod 15 slidably connected with the second clamping plate 11 is fixedly connected with the second clamping block 17, the top inner side of the first clamping plate 10 and the second clamping plate 11 is provided with the MOS 20, the top of the MOS 20 is provided with the heat sink 21, the top of the base 1 is provided with the sliding block 22, the outer side of the sliding block 22 is provided with the sliding bin 12, the sliding bin 12 is fixedly connected with the base 1, the outer side of the sliding block 22 is fixedly connected with the push-pull rod 23, the push-pull rod 23 is slidably connected with the sliding bin 12, the top of the motor 3 is provided with the machine cover 14, the machine cover 14 is fixedly connected with the base 1, the inner side of the first clamping block 16 and the second clamping block 17 is provided with the circular rotating groove, the inner side of the circular rotating groove is rotatably connected with the clamping bolt 19, the clamping bolt 19 is threadedly connected with the base 1, the outer side of the clamping bolt 19 is provided with the rotating clasp.
[0035] The effect achieved by the entire embodiment 3 is that the size of the heat sink 21 causes the mounting holes on the MOS 20 and the heat sink 21 to be misaligned, at this time, the clamping rod 24 is moved inward and outward by rotating the positioning bolt 25 located at the side of the heat sink 21 until the heat sink 21 and the MOS 20 are overlapped, when the MOS 20 is too long, the sliding block 22 is driven to slide into the sliding bin 12 by pulling the push-pull rod 23, at this time, the groove for preventing the heat sink 21 from being horizontal is exposed on the base 1.
[0036] Embodiment 4, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the inner side size of the sliding chamber 12 is slightly larger than the size of the sliding block 22, the outer side of the clamping bolt 19 is fixed with a rotating handle, the outer side of the push-pull rod 23 is fixed with a limiting ring, the inner side of the first clamping plate 10 and the second clamping plate 11 is respectively slidingly connected with a clamping rod 24, the inner side of the clamping rod 24 is provided with a position adjusting bolt 25, the position adjusting bolt 25 is threadedly connected with the clamping rod 24, the other end of the rotating shaft 4 is rotatably connected with the base 1, the inner side of the first clamping plate 10 and the second clamping plate 11 is slidingly connected with a first sliding rod 13, the other end of the first clamping plate 10 and the second clamping plate 11 is slidingly connected with a second sliding rod 18, the inner side of the first clamping plate 10 and the second clamping plate 11 is provided with a placing groove capable of placing various types of MOS 20, and the inner side of the base 1 is provided with a sliding groove capable of sliding the second sliding rod 18 forward and backward.
[0037] The effect achieved by the whole embodiment 4 is that the clamping bolt 19 moves the clamped first clamping block 16 and the second clamping block 17 forward and backward through the threaded connection with the base 1, because the first clamping block 16 and the second clamping block 17 are rotatably connected with the second sliding rod 18, so the first clamping block 16 and the second clamping block 17 move synchronously, until the MOS 20 is clamped, and then the heat dissipation fin 21 is placed in the top groove of the first clamping block 16, the second clamping block 17, the first clamping plate 10 and the second clamping plate 11.
[0038] The working principle of the whole device is as follows: when it is required to start assembling the heat sink 21 and the MOS 20, one or more MOS 20 are first placed in the top inner side of each first clamping plate 10 and second clamping plate 11 respectively, and then the motor 3 is started, the motor 3 drives the first gear 5 to rotate through the fixed rotating shaft 4, the first gear 5 drives the second gear 6 engaged therewith to rotate, and the double-threaded rod 7 fixed to the second gear 6 rotates while moving the first clamping plate 10 and the second clamping plate 11 threaded thereon through the thread principle, so that the distance between the corresponding first clamping plate 10 and the second clamping plate 11 is reduced until the MOS 20 is clamped or held, and at the same time, the sliding rod 15 on the inner side of the corresponding first clamping plate 10 and the second clamping plate 11 is synchronously driven and drives the first clamping block 16 and the second clamping block 17 to move towards the middle, when the length of the MOS 20 is too long, the clamping screw 19 is twisted, the clamping screw 19 moves the clamping block 16 and the clamping block 17 forward and backward through the threaded relationship with the base 1, since the first clamping block 16 and the second clamping block 17 are all rotated with the second sliding rod 18, the first clamping block 16 and the second clamping block 17 are synchronously moved, until the MOS 20 can be clamped, then the heat sink 21 is placed in the top groove of the first clamping block 16, the second clamping block 17, the first clamping plate 10 and the second clamping plate 11, if the size of the heat sink 21 causes the mounting holes on the MOS 20 and the heat sink 21 to be misaligned, at this time, the positioning screw 25 on the side of the heat sink 21 is twisted to move the clamping rod 24 inward and outward until the heat sink 21 coincides with the MOS 20, when the MOS 20 is too long, the sliding block 22 is moved to the inside of the sliding chamber 12 by pulling the push-pull rod 23, at this time, the groove for preventing the heat sink 21 from being horizontal is exposed on the base 1, at this time, the alignment of the mounting holes on the heat sink 21 and the MOS 20 is observed by the naked eye, and the clamping work of the heat sink 21 and the MOS 20 is completed.
[0039] At the bottom of the base 1, an electric telescopic rod 201, a horizontal sensor 202, a signal transceiver 203 and a non-slip pad 204 are installed, wherein the electric telescopic rod 201 serves as a support leg of the device, the non-slip pad 204 at the end thereof is in contact with the bottom surface on which the device is placed, when the horizontal sensor 202 detects that the table surface on which the device is placed is uneven, the detected signal is transmitted to the signal transceiver 203, after receiving the signal, the signal transceiver 203 quickly integrates and processes the signals, and then accurately controls the four electric telescopic rods 201 to stretch and retract cooperatively according to the processing result, by adjusting the length of each electric telescopic rod 201, the device is finally in a horizontal state.
[0040] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.
Claims
1. A heat sink and MOS assembly fixture, characterized in that: The base (1) includes a base (1), a motor (3) is fixedly connected to the inner side of the base (1), a rotating shaft (4) is fixedly connected to the output end of the motor (3), two first gears (5) are fixedly connected to the outer side of the rotating shaft (4), two bolts (9) are fixedly connected to the top of the base (1), a connecting rod (8) is rotatably connected to the inner side of the two bolts (9), two bidirectional threaded rods (7) are fixedly connected to the outer side of the connecting rods (8), and a second gear (6) is fixedly connected to the outer side of each of the two bidirectional threaded rods (7). The second gear (6) meshes with the first gear (5). Multiple first clamping plates (10) are slidably connected inside the base (1), and a second clamping plate (11) is provided on the outer side of each of the multiple first clamping plates (10). The first clamping plates (10) and the second clamping plates (11) are respectively threaded to the bidirectional threaded rods (7). A support mechanism (2) is provided at the bottom of the base (1).
2. The heat sink and MOS assembly fixture according to claim 1, characterized in that: The device includes an electric telescopic rod (201), multiple electric telescopic rods (201) are fixed to the bottom of the base (1), a horizontal sensor (202) is fixedly connected to the bottom of the base (1), a signal transceiver (203) is provided on the outside of the horizontal sensor (202), and the signal transceiver (203) is fixedly connected to the base (1).
3. The heat sink and MOS assembly fixture according to claim 2, characterized in that: The first clamping plate (10) and the second clamping plate (11) are slidably connected by a sliding rod (15). The other end of the sliding rod (15) slidably connected to the first clamping plate (10) is fixedly connected to a first clamping block (16). The other end of the sliding rod (15) slidably connected to the second clamping plate (11) is fixedly connected to a second clamping block (17).
4. The heat sink and MOS assembly fixture according to claim 3, characterized in that: The first clamping plate (10) and the second clamping plate (11) are provided with MOS (20) on their top inner sides, and the top of the MOS (20) is provided with heat sink (21).
5. The heat sink and MOS assembly fixture according to claim 4, characterized in that: The base (1) has a slider (22) on its top and a slide chamber (12) on its outer side. The slide chamber (12) is fixedly connected to the base (1). A push-pull rod (23) is fixedly connected to the outer side of the slider (22). The push-pull rod (23) is slidably connected to the slide chamber (12).
6. The heat sink and MOS assembly fixture according to claim 5, characterized in that: The motor (3) is provided with a cover (14) on top. The cover (14) is fixedly connected to the base (1). The inner sides of the first clamping block (16) and the second clamping block (17) are provided with circular rotating grooves. The inner side of the circular rotating groove is rotatably connected with a clamping bolt (19). The clamping bolt (19) is threadedly connected to the base (1). The outer side of the clamping bolt (19) is provided with a rotating retaining ring.
7. The heat sink and MOS assembly fixture according to claim 6, characterized in that: The inner dimension of the slide (12) is slightly larger than the dimension of the slider (22), a rotating handle is fixed to the outer side of the clamping bolt (19), and a limit ring is fixed to the outer side of the push-pull rod (23).
8. The heat sink and MOS assembly fixture according to claim 7, characterized in that: The first clamping plate (10) and the second clamping plate (11) are respectively slidably connected to clamping rods (24), and the inner sides of the clamping rods (24) are provided with adjusting bolts (25), and the adjusting bolts (25) are threadedly connected to the clamping rods (24).
9. The heat sink and MOS assembly fixture according to claim 8, characterized in that: The other end of the rotating shaft (4) is rotatably connected to the base (1). The inner sides of the first clamping plate (10) and the second clamping plate (11) are slidably connected to the first slide rod (13). The inner sides of the other ends of the first clamping plate (10) and the second clamping plate (11) are slidably connected to the second slide rod (18).
10. A heat sink and MOS assembly fixture according to claim 9, characterized in that: The inner sides of the first clamping plate (10) and the second clamping plate (11) are provided with placement slots for placing various types of MOS, and the inner side of the base (1) is provided with a sliding groove for the second slide rod (18) to slide back and forth.