A large-sensing laminated low-temperature co-fired ceramic inductor and its design method

Abstract

The present invention relates to the technical field of electrical components, and particularly to a large-inductance laminated chip low-temperature co-fired ceramic inductor and its design method, including a device body; an external electrode; a clamping and protection device; a hollow heat dissipation plate; a one-way air intake connecting solenoid and a one-way air outlet connecting solenoid; a connecting cap; a rigid tube; a cold air circulation cooling device is provided at the end of the connecting tube. The present invention achieves the effects of auxiliary heat dissipation, buffer protection and clamping positioning on both sides of the device body through the clamping and protection device and the hollow heat dissipation plate. The cold air circulation cooling device is used to generate cold air, and the cold air is supplied to the inside of the hollow heat dissipation plate through the connecting tube, the rigid tube and the connecting cap, so as to quickly cool down the hollow heat dissipation plate. The hollow heat dissipation plate can absorb heat and quickly dissipate heat on one side of the device body, achieving efficient cooling of the device body. Moreover, the circulating cold air setting ensures continuous auxiliary cooling work for the device body, solving the problem of poor heat dissipation effect of existing inductors.

Description

Technical Field

[0001] The invention relates to the technical field of electrical components, in particular to a large-inductance laminated low-temperature co-fired ceramic inductor and a design method thereof. Background Art

[0002] The high-inductance multilayer low-temperature co-fired ceramic inductor is a type of inductor that works based on the principle of electromagnetic induction. When current passes through the coil inside it, a magnetic field is generated around the coil, and this magnetic field in turn hinders the change of current, thus reflecting the characteristics of inductance. Unlike ordinary inductors, it adopts a multilayer structure and is made using low-temperature co-fired ceramic (LTCC) technology, and can achieve a large inductance to meet the needs of specific circuits for high inductance values.

[0003] After searching, Chinese patent publication number CN211907144U discloses a laminated ceramic inductor, including a laminated inductor, a shell is provided on the upper outer side of the laminated inductor, a plurality of anti-slip grooves are respectively provided on the two side walls of the shell, and a heat dissipation mechanism is provided on the upper inner side of the shell. The utility model discloses a laminated ceramic inductor, which provides a detachable heat-conducting frame on its non-magnetic ceramic and cooperates with the heat dissipation mechanism on the upper part of its shell, so that the shell can protect the inductor and also have the function of heat dissipation, which can effectively prevent the inductor from not being able to discharge heat when the current is unstable. During use, the patent mostly uses a heat-conducting layer to dissipate the heat generated by its internal coil. Passive heat dissipation will affect its heat dissipation effect, resulting in the inability to quickly discharge the internal heat, which easily causes the inductor to burn out. In addition, the patent protects the inductor by frictionally fixing the rubber pad with the external electrode. The external electrode is an important part for connecting with the external circuit. The setting of the rubber pad will not only affect the connection of the external circuit, but also wear the external electrode. In view of this, we propose a large-inductance laminated low-temperature co-fired ceramic inductor and a design method thereof. Summary of the invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a large-inductance laminated chip low-temperature co-fired ceramic inductor and its design method, which solves the problems raised in the above-mentioned background technology. To achieve the above objectives, the present invention is realized through the following technical solutions: A large-inductance laminated chip low-temperature co-fired ceramic inductor, including a device body, with external electrodes provided on both sides of the device body; a clamping and protection device, which is arranged on the device body and is used for fixing and protecting the device body; a hollow heat dissipation plate, which is arranged on the clamping and protection device, and a one-way air intake connecting pipe and a one-way air outlet connecting pipe are respectively fixedly connected to the hollow heat dissipation plate. Connecting caps are threadedly connected to both the one-way air intake connecting pipe and the one-way air outlet connecting pipe. A rigid pipe is rotatably connected to the connecting cap, and a connecting pipe is fixedly connected to the end of the rigid pipe. A cold air circulation cooling device is arranged at the end of the connecting pipe.

[0005] Preferably, a heat dissipation fin is fixedly connected to one side of the hollow heat dissipation plate. An air flow blowing device is arranged inside the hollow heat dissipation plate. A diversion groove is opened inside the hollow heat dissipation plate. A one-way air intake valve and a one-way air outlet valve are respectively arranged inside the one-way air intake connecting pipe and the one-way air outlet connecting pipe.

[0006] Preferably, the cold air circulation cooling device includes a refrigeration base. One side of the refrigeration base is connected to the end of the connecting pipe through a multi-head connecting device. A driving motor is installed on the refrigeration base. A crank rod is clamped to the output shaft of the driving motor. A limiting base is slidably connected to the end of the crank rod. A pressure plate is fixedly connected to one side of the limiting base through a connecting rod. A semiconductor refrigerator is installed inside the refrigeration base on one side of the pressure plate.

[0007] Preferably, the surface of the pressure plate is slidably connected to the inner wall of the refrigeration base. An air inlet and an air outlet are respectively opened on one side of the refrigeration base. The number of the multi-head connecting devices is set to two, and the two multi-head connecting devices are respectively connected to the air inlet and the air outlet.

[0008] Preferably, the multi-head connecting device includes an adapter seat. One side of the adapter seat is fixedly connected to one side of the refrigeration base. A plurality of slots are opened on the other side of the adapter seat. A plug rod is fixedly connected inside the adapter seat. A blocking valve is slidably connected to the plug rod. An upper magnetic clamping seat and a lower magnetic clamping seat are respectively slidably connected to the surface of the adapter seat.

[0009] Preferably, a convex head is fixedly connected to the end of the connecting pipe away from the rigid pipe, and the convex head is inserted into any one of the plurality of slots.

[0010] Preferably, a spring is fixedly connected between the surface of the blocking valve and the inner wall of the adapter seat. Both the upper magnetic card seat and the lower magnetic card seat are clamped to the surface of the convex head. The bottom of the upper magnetic card seat and the top of the lower magnetic card seat are magnetically connected, and hanging ears are arranged on both sides of the upper magnetic card seat and the lower magnetic card seat.

[0011] Preferably, the clamping and protecting device includes an upper card seat. A bidirectional threaded rod is rotatably connected inside the upper card seat. The end of the bidirectional threaded rod is rotatably connected to a lower card seat. Upper and lower clamping seats are respectively threadedly connected to the surface of the bidirectional threaded rod. A screw seat is rotatably connected to the upper clamping seat. A gear is fixedly connected to the bidirectional threaded rod. A toothed belt is in transmission engagement with the gear. A rotating handle is fixedly connected to the end of the gear away from the bidirectional threaded rod.

[0012] Preferably, the inner walls of the upper and lower clamping seats are respectively in sliding connection with the surface of the device body. The inner wall of the screw seat is threadedly connected to the surface of the unidirectional air intake connecting pipe. A clamping groove is formed in the upper clamping seat. The heat sink is inserted into the clamping groove. A protective bottom plate is fixedly connected inside the lower clamping seat. The surface of the protective bottom plate is in contact with the surface of the device body. The toothed belt is in transmission inside the upper card seat.

[0013] Preferably, the air flow blowing device includes a passive pressure plate. The surface of the passive pressure plate is slidably connected inside the hollow heat sink plate. One end of the passive pressure plate is fixedly connected to a flow blocking plate. The other end of the passive pressure plate is fixedly connected to a flow-through chuck through a sliding shaft. A protective rubber ball is fixedly connected to the flow-through chuck. The inside of the protective rubber ball is communicated with the inside of the flow-through chuck, and an air outlet is formed in the flow-through chuck. The flow blocking plate is slidably connected inside the diversion groove. The surface of the sliding shaft is slidably connected to the bottom of the hollow heat sink plate.

[0014] A design method for a large-inductance multilayer chip low-temperature co-fired ceramic inductor, comprising:

[0015] Step A: Protection. By rotating any one of a plurality of rotating handles, the bidirectional threaded rod on the gear is driven to rotate. The bidirectional threaded rod drives the upper card seat and the lower card seat to move relatively, completing the clamping and protecting work on the whole device body.

[0016] Step B: Passive heat dissipation. The hollow heat sink plate absorbs the heat on the device body and dissipates heat through a plurality of heat sinks.

[0017] Step C: Active heat dissipation, including the following steps:

[0018] C1, Refrigeration. Start the semiconductor refrigerator. The semiconductor refrigerator cools the gas in the refrigeration base.

[0019] C2. Conveyance: Start the driving motor. The output shaft of the driving motor controls the reciprocating linear movement of the limit base through the reciprocating rotation of the curved rod. The limit base drives the air pressure plate to perform piston movement in the refrigeration base through the connecting rod. The air pressure plate squeezes the cold air in the refrigeration base to the adapter seat at the air outlet. The adapter seat transfers the cold air from the connecting pipe to the hard pipe through the clamped convex head. The hard pipe conveys the cold air into the hollow heat dissipation plate through the docking of the connecting cap with the one-way intake connecting screw pipe.

[0020] C3. Circulation: The cold air flows from one side of the hollow heat dissipation plate to the other side through the drainage groove. During the flow, active heat dissipation and rapid cooling of the hollow heat dissipation plate are achieved, and the gas is conveyed into the adapter seat at the air intake through the one-way air outlet connecting screw pipe, the connecting cap, the hard pipe, the connecting pipe and the convex head connected to the other side, and the gas is conveyed to the refrigeration base again through the adapter seat for cooling.

[0021] As can be seen from the above technical solutions, a large-sensing laminated chip low-temperature co-fired ceramic inductor and its design method provided by the embodiments of this specification have at least the following beneficial effects:

[0022] (1) In the present invention, the clamping protection device and the hollow heat dissipation plate achieve the effects of auxiliary heat dissipation, buffer protection and clamping positioning on both sides of the device body. The cold air circulation cooling device is used to generate cold air and supply the cold air to the inside of the hollow heat dissipation plate through the connecting pipe, the hard pipe and the connecting cap, so as to achieve rapid cooling of the hollow heat dissipation plate. The hollow heat dissipation plate can absorb heat and quickly dissipate heat on one side of the device body, achieving efficient cooling of the device body. The set of circulating cold air then ensures continuous auxiliary cooling work for the device body, solving the problem of poor heat dissipation effect of existing inductors.

[0023] (2) In the present invention, through the cold air circulation cooling device, multiple slots, multiple plug rods and blocking valves are provided to achieve the purpose of auxiliary cooling of multiple device bodies. When only one connecting pipe on one device body is connected to the adapter seat, the redundant slots on it are in an idle state. In this state, the blocking valves at the idle places will be inserted into the slots by elastic force, thus achieving the effect of sealing the idle slots. For the slot where the connecting pipe is inserted, the blocking valve at this place is squeezed by the convex head and separated from the slot. At this time, the gas in the adapter seat will flow through the cavity on the blocking valve after yielding into the convex head and the connecting pipe, so as to achieve the normal one-way gas conveying effect.

[0024] (3) In the present invention, by providing a drainage groove, the adapter transfers the cold air from the connecting pipe to the rigid pipe through the convex head. The rigid pipe conveys the cold air into the hollow heat dissipation plate through the docking of the connecting cap with the one-way intake connecting screw pipe. The cold air flows from one side to the other side of the hollow heat dissipation plate through the drainage groove. During the flow, active heat dissipation and rapid cooling of the hollow heat dissipation plate are achieved, and the gas is conveyed to the adapter at the air inlet through the one-way exhaust connecting screw pipe connected to the other side, its connecting cap, the rigid pipe, the connecting pipe, and the convex head, and the adapter conveys the gas to the refrigeration base for cooling again, thereby achieving the effect of automatically and rapidly dissipating heat from the device body, and the cold air can circulate, thus ensuring continuous auxiliary cooling work for the device body, solving the problem of poor heat dissipation effect of existing inductors. At the same time, during the heat dissipation, buffering, positioning protection, and easy disassembly of the device body, the normal operation of the external electrodes will not be affected.

[0025] (4) In the present invention, by providing a clamping protection device, turning the handle drives the upper clamping seat and the lower clamping seat on the bidirectional threaded rod to move away from or close to each other, and then whether to clamp the device body is realized by adjusting the gap between the upper clamping seat and the lower clamping seat, so as to achieve the purpose of easy installation and disassembly. At the same time, the adjustability of the upper clamping seat and the lower clamping seat can also achieve the purpose of clamping and protecting device bodies of different thicknesses.

[0026] (5) In the present invention, by providing an air flow blowing device, the internal protective rubber ball is used to achieve the effects of buffering protection and positioning clamping on one side of the device body. Combining the extrusion of the baffle plate when the air flow passes through the drainage groove, the circulation chuck driving the protective rubber ball on the sliding shaft of the passive pressure plate squeezes the device body. When squeezing, the gas inside the protective rubber ball is discharged through the circulation chuck to the surface of the device body, and the discharged gas has the effects of air cooling and dust blowing on the surface of the device body, thereby realizing secondary cooling of the surface of the device body by using the power of cold air circulation, improving the cooling effect on the device body, and also having the function of automatically cleaning the device body. Description of the Drawings

[0027] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure at the hollow heat dissipation plate in the present invention;

[0030] Figure 3 It is a schematic diagram of the structure at the drainage groove in the present invention;

[0031] Figure 4 It is a schematic diagram of the structure at the one-way intake connecting screw pipe in the present invention;

[0032] Figure 5 Schematic diagram of the internal structure of the refrigeration base in the present invention;

[0033] Figure 6 Schematic diagram of the structure at the curved lever in the present invention;

[0034] Figure 7 Schematic diagram of the structure at the limit base in the present invention;

[0035] Figure 8 Schematic diagram of the internal structure of the adapter in the present invention;

[0036] Figure 9 Schematic diagram of the structure of the blocking valve in the present invention;

[0037] Figure 10 Schematic diagram of the structure at the plug rod in the present invention;

[0038] Figure 11 Schematic diagram of the top view structure of the adapter in the present invention;

[0039] Figure 12 Schematic diagram of the structure at the convex head in the present invention;

[0040] Figure 13 Schematic diagram of the internal structure of the upper card seat in the present invention;

[0041] Figure 14 Schematic diagram of the structure at the upper clamping seat in the present invention;

[0042] Figure 15 Schematic diagram of the structure at the device body in the present invention;

[0043] Figure 16 Schematic diagram of the internal structure of the hollow heat dissipation plate in the present invention;

[0044] Figure 17 Schematic diagram of the structure of the air flow blowing device in the present invention;

[0045] Figure 18 Schematic diagram of the structure at the circulation chuck in the present invention.

[0046] In the figure: 1. Body; 2. External electrode; 3. Clamping and protection device; 31. Upper clamping seat; 32. Bi-directional threaded rod; 33. Lower clamping seat; 34. Upper clamping block; 35. Lower clamping block; 36. Gear; 37. Tooth belt; 38. Rotating handle; 39. Screw seat; 310. Protection bottom plate; 4. Hollow heat dissipation plate; 41. Heat dissipation fin; 42. Air flow blowing device; 421. Passive pressing disc; 422. Flow blocking plate; 423. Sliding shaft; 424. Flow-through chuck; 425. Protection rubber ball; 43. Drainage groove; 5. Unidirectional air intake connecting screw pipe; 6. Unidirectional air outlet connecting screw pipe; 7. Connecting cap; 8. Hard pipe; 9. Connecting pipe; 91. Convex head; 10. Cold air circulation cooling device; 101. Refrigeration base; 102. Driving motor; 103. Curved rod; 104. Limit base; 105. Connecting rod; 106. Pressure plate; 107. Semiconductor refrigerator; 11. Multi-head connecting device; 111. Adapter seat; 112. Slot; 113. Plug rod; 114. Blocking valve; 115. Upper magnetic clamping seat; 116. Lower magnetic clamping seat. Specific implementation manner

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Please refer to Figure 1 - Figure 18 As shown, a large-sensing laminated low-temperature co-fired ceramic inductor includes a body 1, and external electrodes 2 are arranged on both sides of the body 1; the body 1 and the external electrodes 2 on both sides are combined to form a ceramic inductor. In the ceramic inductor, a ceramic multi-layer circuit board is made by using low-temperature co-fired ceramic technology to serve as a transformer winding. Then, a planar magnetic core and the ceramic circuit board are stacked together, and then statically pressed and sintered into a transformer as a whole. The low-temperature sintered ceramic powder is made into a green ceramic tape with a uniform thickness of dozens of microns as the circuit substrate material. Then, the required winding parameters are wired into a circuit by laser etching holes and printing silver paste conductive bands on the green ceramic tape. After that, through processes such as static pressing and trimming, a ceramic multi-layer circuit board is made. There is a primary winding and two (or more) secondary windings in the ceramic multi-layer circuit board. The layers in the ceramic multi-layer circuit board are insulated from each other. The primary winding and the secondary windings are made of multi-layer ceramic thin sheets pressed into a ceramic multi-layer circuit board. The connection of the winding circuits between each layer of ceramic thin sheets is realized by through holes on each ceramic thin sheet. The inner wall of the through hole is plated with silver paste for conduction. The ceramic multi-layer circuit board material has good temperature characteristics, which can effectively reduce the cracking of the ceramic circuit board due to stress; the high thermal conductivity is very beneficial to the heat conduction of the ceramic multi-layer circuit board, reducing the temperature rise of the transformer and improving the efficiency of the transformer.

[0049] A clamping protection device 3 is provided on the device body 1 for fixing and protecting the device body 1; a hollow heat dissipation plate 4 is provided on the clamping protection device 3. A one-way intake connecting solenoid 5 and a one-way exhaust connecting solenoid 6 are respectively and fixedly connected to the hollow heat dissipation plate 4. A one-way intake valve and a one-way exhaust valve are respectively arranged inside the one-way intake connecting solenoid 5 and the one-way exhaust connecting solenoid 6 for controlling the gas to only flow in one direction. Connecting caps 7 are threadedly connected to both the one-way intake connecting solenoid 5 and the one-way exhaust connecting solenoid 6, and the threaded connection achieves a detachable effect. Rotating pipes 8 are rotatably connected to both connecting caps 7. Connecting pipes 9 are fixedly connected to the ends of both rotating pipes 8. The connecting caps 7, the rotating pipes 8, and the connecting pipes 9 are in a communicating state. The two connecting caps 7 rotating on the rotating pipes 8 are respectively used to connect with the one-way intake connecting solenoid 5 and the one-way exhaust connecting solenoid 6, thereby realizing the communication between the connecting caps 7 and the one-way intake connecting solenoid 5 and the one-way exhaust connecting solenoid 6. A cold air circulation cooling device 10 is arranged at the end of the connecting pipe 9. The cold air circulation cooling device 10 is used to generate cold air. The cold air is supplied into the interior of the hollow heat dissipation plate 4 through the connecting pipe 9, the rotating pipe 8, and the connecting cap 7 connected to the one-way intake connecting solenoid 5, and then discharged from the interior of the hollow heat dissipation plate 4 through the connecting cap 7 connected to the one-way exhaust connecting solenoid 6, thereby realizing the rapid cooling of the hollow heat dissipation plate 4. The hollow heat dissipation plate 4 can achieve the effects of heat absorption and rapid heat dissipation on one side of the device body 1, and the supply of cold air further increases the heat dissipation and cooling effects of the hollow heat dissipation plate 4, thereby achieving the purpose of efficient heat dissipation and cooling.

[0050] In this embodiment, a heat dissipation fin 41 is fixedly connected to one side of the hollow heat dissipation plate 4. An air flow blowing device 42 is arranged inside the hollow heat dissipation plate 4. When the device body 1 is working normally and generating heat, the heat energy can be transferred to the hollow heat dissipation plate 4 through the transfer of air. And the hollow heat dissipation plate 4 is made of a heat dissipation material and can quickly dissipate the heat through the heat dissipation fin 41, thereby improving the overall heat dissipation effect of the device body 1. A diversion groove 43 (as Figure 16 shown) is opened inside the hollow heat dissipation plate 4. The diversion groove 43 is used for one-way diversion of the cold air replenished into the interior of the hollow heat dissipation plate 4, so that the cold air can flow from one side of the hollow heat dissipation plate 4 to the other side, thereby assisting the cold air in one-way circulation.

[0051] Furthermore, the cold air circulation cooling device 10 includes a refrigeration base 101. One side of the refrigeration base 101 is connected to the end of the connecting pipe 9 through a multi-head connecting device 11. The length of the connecting pipe 9 is not limited, and the installation of the refrigeration base 101 is also positioned according to the actual situation. The refrigeration base 101 is arranged outside the device body 1, so that it is convenient for the operator to distribute according to the installation position of the device body 1 and the installation space inside the transformer, improving the applicability of the overall technical solution. Two round holes (asFigure 7 As shown), they are the air inlet and the air outlet respectively. The number of the multi-head connection devices 11 is set to two, and the two multi-head connection devices 11 are respectively connected to the air inlet and the air outlet (as Figure 7 shown), the corresponding connecting pipe 9 on the one-way air inlet connecting solenoid 5 corresponds to the multi-head connection device 11 at the air outlet, and the corresponding connecting pipe 9 on the one-way air outlet connecting solenoid 6 corresponds to the multi-head connection device 11 at the air inlet (combined with Figure 1 , Figure 7 and Figure 5 shown), a driving motor 102 is installed on the refrigeration base 101, the output shaft of the driving motor 102 is clamped with a crank rod 103, the end of the crank rod 103 is slidably connected with a limit base 104, the crank rod 103 is composed of two shaft rods with different centers, one of the shaft rods is used to connect with the output shaft of the driving motor 102, and the other shaft rod is used to drive the limit base 104. One side of the limit base 104 is fixedly connected with a pressure plate 106 through a connecting rod 105, the surface of the pressure plate 106 is slidably connected to the inner wall of the refrigeration base 101, and a semiconductor refrigerator 107 is installed on one side of the pressure plate 106 inside the refrigeration base 101. The semiconductor refrigerator 107 cools the gas in the refrigeration base 101. The output shaft of the driving motor 102 drives the crank rod 103 to rotate. During the rotation of the crank rod 103, the limit base 104 slidably connected to its end is driven to move in a reciprocating straight line. The limit base 104 drives the pressure plate 106 to move in a piston manner inside the refrigeration base 101 through the connecting rod 105, so as to achieve the effect of sucking and extruding the gas in the refrigeration base 101. During the movement of the pressure plate 106, through the connection between the two multi-head connection devices 11 and the connecting pipe 9, the effect of unidirectional circulation cooling of the hollow heat dissipation plate 4 with cold air is achieved.

[0052] Furthermore, a convex head 91 is fixedly connected to the end of the connecting pipe 9 far away from the rigid pipe 8. The multi-head connection device 11 includes an adapter base 111. One side of the adapter base 111 is fixedly connected to one side of the refrigeration base 101. The other side of the adapter base 111 is provided with a plurality of slots 112. The convex head 91 is inserted into any one of the plurality of slots 112. A plug rod 113 is fixedly connected inside the adapter base 111 (as Figure 10As shown in the figure, a blocking valve 114 is slidably connected to the plug rod 113. A spring is fixedly connected between the surface of the blocking valve 114 and the inner wall of the adapter base 111. By providing a plurality of slots 112, a plurality of plug rods 113, and the blocking valve 114, the purpose of assisting in cooling a plurality of devices 1 is achieved. Correspondingly, a plurality of connecting pipes 9 for conveying cold air can also be provided. Under normal conditions, when only one connecting pipe 9 on a device 1 is connected to the adapter base 111, the redundant slots 112 thereon are in an idle state. In this state, the blocking valve 114 at the idle position will be inserted into the slot 112 by elastic force, thereby achieving the effect of sealing the idle slot 112. For the slot 112 where the connecting pipe 9 is inserted, the blocking valve 114 at this position is squeezed by the convex head 91 and disengages from the slot 112. At this time, the gas in the adapter base 111 will flow through the cavity on the blocking valve 114 after making way to the convex head 91 and into the connecting pipe 9, so as to achieve the normal conveying effect of the gas. The surface of the adapter base 111 is slidably connected with an upper magnetic clamping seat 115 and a lower magnetic clamping seat 116 respectively. The bottom of the upper magnetic clamping seat 115 and the top of the lower magnetic clamping seat 116 are magnetically connected. The upper magnetic clamping seat 115 and the lower magnetic clamping seat 116 are used to clamp the convex head 91, and hanging ears are provided on both sides of the upper magnetic clamping seat 115 and the lower magnetic clamping seat 116, which is convenient for the operator to separate the two magnetic clamping seats, thereby realizing the quick installation and disassembly of the convex head 91 and the slot 112. Both the upper magnetic clamping seat 115 and the lower magnetic clamping seat 116 are clamped to the surface of the convex head 91. The adapter base 111 transfers the cold air from the connecting pipe 9 to the rigid pipe 8 through the clamped convex head 91. The rigid pipe 8 conveys the cold air into the hollow heat dissipation plate 4 through the docking of the connecting cap 7 with the one-way intake connecting screw pipe 5. The cold air flows from one side of the hollow heat dissipation plate 4 to the other side through the drainage groove 43. During the flow, the active heat dissipation and rapid cooling of the hollow heat dissipation plate 4 are realized, and the gas is conveyed to the adapter base 111 at the air inlet through the one-way exhaust connecting screw pipe 6 connected to the other side, the connecting cap 7, the rigid pipe 8, the connecting pipe 9, and the convex head 91 thereon, and the gas is conveyed to the refrigeration base 101 again through the adapter base 111 for cooling, so as to achieve the effect of automatically and quickly dissipating heat from the device 1, and the cold air can circulate, thereby ensuring the continuous auxiliary cooling work for the device 1, solving the problem of poor heat dissipation effect of the existing inductor, and at the same time, during the heat dissipation, buffering, positioning protection and easy disassembly of the device 1, the normal operation of the external electrode 2 will not be affected.

[0053] In addition, the clamping and protection device 3 includes an upper clamping seat 31. Four bidirectional threaded rods 32 are rotatably connected inside the upper clamping seat 31 respectively. The ends of the four bidirectional threaded rods 32 are jointly rotatably connected to a lower clamping seat 33. An upper clamping seat 34 and a lower clamping seat 35 are jointly threadedly connected to the surfaces of the four bidirectional threaded rods 32. The inner walls of the upper clamping seat 34 and the lower clamping seat 35 are slidably connected to the surface of the device 1 respectively. A clamping groove is formed on the upper clamping seat 34 (such as Figure 14As shown, the heat sink 41 is inserted into the inside of the card slot. A screw base 39 is rotatably connected to the upper clamping seat 34. The inner wall of the screw base 39 is threadedly connected to the surface of the unidirectional intake connecting screw tube 5 and can be disassembled. Four bidirectional threaded rods 32 are fixedly connected with gears 36 respectively. A toothed belt 37 is simultaneously meshed and driven by the four gears 36. The toothed belt 37 is located inside the upper clamping seat 31 for limited transmission. A rotating handle 38 is fixedly connected to the end of the gear 36 away from the bidirectional threaded rod 32. A protective bottom plate 310 is fixedly connected inside the lower clamping seat 35, and the surface of the protective bottom plate 310 is in contact with the surface of the device body 1. The hollow heat dissipation plate 4 and the air flow blowing device 42 on one side thereof are used for buffering protection and positioning clamping of one side of the device body 1, while the protective bottom plate 310 inside the lower clamping seat 35 buffers and protects and positions and clamps the other side of the device body 1. The user can rotate any one of the multiple rotating handles 38, and this rotating handle 38 drives the gear 36 at this position to realize the effect of driving the bidirectional threaded rod 32 to rotate. Since the four gears 36 are driven by the toothed belt 37, rotating one rotating handle 38 can realize the effect of synchronous rotation of the four gears 36. Correspondingly, the four bidirectional threaded rods 32 also rotate and adjust simultaneously. When the bidirectional threaded rod 32 rotates, it drives the upper clamping seat 31 and the lower clamping seat 33 to move away from or close to each other through the threads thereon, and then realizes the clamping or not of the device body 1 by adjusting the gap between the upper clamping seat 31 and the lower clamping seat 33, so as to achieve the purpose of facilitating installation and disassembly. At the same time, the adjustability of the upper clamping seat 31 and the lower clamping seat 33 can also achieve the purpose of clamping and protecting device bodies 1 with different thicknesses.

[0054] It should be noted that the air flow blowing device 42 includes a passive pressure plate 421. The surface of the passive pressure plate 421 is slidably connected inside the hollow heat dissipation plate 4. One end of the passive pressure plate 421 is fixedly connected with a flow blocking plate 422. The flow blocking plate 422 is slidably connected inside the diversion groove 43. The other end of the passive pressure plate 421 is fixedly connected with a circulation chuck 424 through a sliding shaft 423. A protective rubber ball 425 is fixedly connected to the circulation chuck 424. The inside of the protective rubber ball 425 is communicated with the inside of the circulation chuck 424, and an air outlet is provided on the circulation chuck 424. The surface of the sliding shaft 423 is slidably connected to the bottom of the hollow heat dissipation plate 4. The protective rubber ball 425 is used for buffering protection and positioning clamping of one side of the device body 1. The flow blocking plate 422 is provided with an inclined surface. Since the protective rubber ball 425 is elastic and contacts the device body 1, the flow blocking plate 422 is supported and contacted by the protective rubber ball 425 on the device body 1, and a blocking effect will occur inside the diversion groove 43. When the air flow passes through the diversion groove 43, the air flow force will squeeze the flow blocking plate 422. Affected by the inclined surface thereon, the flow blocking plate 422 moves downward. After the flow blocking plate 422 moves downward, it drives the circulation chuck 424 on the sliding shaft 423 to move downward through the passive pressure plate 421. The circulation chuck 424 drives the protective rubber ball 425 to squeeze the device body 1. When squeezing, the gas inside the protective rubber ball 425 is discharged through the circulation chuck 424 and aligned with the surface of the device body 1. The discharged gas has the effects of air cooling and dust blowing on the surface of the device body 1, thereby realizing the secondary cooling of the surface of the device body 1 by using the power of the cold air cycle, improving the cooling effect on the device body 1, and also having the automatic cleaning function for the device body 1. At the same time, due to the positioning of the protective rubber ball 425 on the device body 1 under normal conditions, when the device body 1 vibrates as a whole, on the one hand, the protective rubber ball 425 can achieve buffering protection for the device body 1, and on the other hand, it will also use the air flow generated by extrusion to act on the surface of the device body 1, and once again realize the effects of cooling and dust removal.

[0055] A design method for a large-sensing laminated chip low-temperature co-fired ceramic inductor includes:

[0056] Step A: Protection. By rotating any one of the rotating handles 38 among the multiple rotating handles 38, the bidirectional threaded rod 32 on the gear 36 is driven to rotate. The bidirectional threaded rod 32 drives the upper clamping seat 31 and the lower clamping seat 33 to move relatively, completing the clamping protection work for the whole device body 1, thereby realizing the effects of buffering protection and positioning clamping for the device body 1, and at the same time not affecting the normal operation of the external electrode 2.

[0057] Step B: Passive heat dissipation. The hollow heat dissipation plate 4 absorbs the heat on the device body 1 and dissipates heat through multiple heat dissipation fins 41, improving the overall heat dissipation effect of the device body 1.

[0058] Step C: Active heat dissipation, including the following steps:

[0059] C1, Refrigeration: Start the thermoelectric cooler 107. The thermoelectric cooler 107 cools the gas inside the refrigeration base 101, thereby using the cold air to quickly cool the device body 1;

[0060] C2, Conveyance: Start the driving motor 102. The output shaft of the driving motor 102 controls the limit base 104 to perform reciprocating linear movement through the reciprocating rotation of the curved rod 103. The limit base 104 drives the pressure plate 106 to perform piston movement inside the refrigeration base 101 through the connecting rod 105. The pressure plate 106 squeezes the cold air inside the refrigeration base 101 to the adapter base 111 at the air outlet. The adapter base 111 transfers the cold air from the connecting pipe 9 to the rigid pipe 8 through the clamped convex head 91. The rigid pipe 8 conveys the cold air into the hollow heat dissipation plate 4 through the docking of the connecting cap 7 with the one-way intake connecting solenoid 5. The cold air acts on the hollow heat dissipation plate 4 to quickly cool the device body 1;

[0061] C3, Circulation: The cold air flows from one side of the hollow heat dissipation plate 4 to the other side through the drainage groove 43. During the flow, the active heat dissipation and rapid cooling of the hollow heat dissipation plate 4 are realized, and the gas is conveyed to the adapter base 111 at the air inlet through the one-way exhaust connecting solenoid 6 connected to the other side, the connecting cap 7, the rigid pipe 8, the connecting pipe 9 and the convex head 91 thereon. The adapter base 111 conveys the gas to the refrigeration base 101 again for cooling, achieving the effect of cold air circulation, and then ensuring the continuous auxiliary cooling work for the device body 1, solving the problem of poor heat dissipation effect of the existing inductor.

[0062] When a large-sensing laminated chip low-temperature co-fired ceramic inductor and its design method of the present invention are in use, the hollow heat dissipation plate 4 and the air flow blowing device 42 on one side thereof are used for buffering protection and positioning clamping of one side of the device body 1, while the protection bottom plate 310 in the lower clamp seat 35 buffers and protects and positions and clamps the other side of the device body 1. The user can rotate any one of the plurality of rotating handles 38. The rotating handle 38 drives the gear 36 at that place to achieve the effect of driving the bidirectional threaded rod 32 to rotate. Since the four gears 36 are driven by the toothed belt 37, rotating one rotating handle 38 can achieve the effect of synchronous rotation of the four gears 36. Correspondingly, the four bidirectional threaded rods 32 also rotate and adjust at the same time. When the bidirectional threaded rod 32 rotates, it drives the upper clamp seat 31 and the lower clamp seat 33 to move away from or close to each other through the threads thereon, and then realizes the clamping or not of the device body 1 by adjusting the gap between the upper clamp seat 31 and the lower clamp seat 33, so as to achieve the purpose of facilitating installation and disassembly. At the same time, the adjustability of the upper clamp seat 31 and the lower clamp seat 33 can also achieve the purpose of clamping and protecting the device body 1 with different thicknesses. When the hollow heat dissipation plate 4 buffers, protects and positions and clamps one side of the device body 1, since the protective rubber balls 425 are distributed in a dot array on the hollow heat dissipation plate 4, when the device body 1 generates heat during normal operation, the heat energy can be transferred to the hollow heat dissipation plate 4 through the transfer of air, and the hollow heat dissipation plate 4 is made of a heat dissipation material and can quickly dissipate the heat through the heat dissipation fins 41, thereby improving the overall heat dissipation effect of the device body 1.

[0063] Meanwhile, when the temperature of the device body 1 is relatively high, by starting the semiconductor refrigerator 107 and the driving motor 102, the semiconductor refrigerator 107 cools the gas in the refrigeration base 101, and the output shaft of the driving motor 102 drives the crank lever 103 to rotate. During the rotation of the crank lever 103, the limit base 104 slidably connected to its end is driven to perform reciprocating linear movement. The limit base 104 drives the air pressure plate 106 to perform piston movement in the refrigeration base 101 through the connecting rod 105. The air pressure plate 106 squeezes the cold air in the refrigeration base 101 to the adapter base 111 at the air outlet. The adapter base 111 transfers the cold air to the rigid tube 8 through the engaged convex head 91 of the connecting tube 9. The rigid tube 8 conveys the cold air into the hollow heat dissipation plate 4 through the butt joint of the connecting cap 7 with the one-way intake connecting screw tube 5. The cold air flows from one side of the hollow heat dissipation plate 4 to the other side through the drainage groove 43. During the flow, the active heat dissipation and rapid cooling of the hollow heat dissipation plate 4 are realized, and the gas is conveyed into the adapter base 111 at the air inlet through the one-way exhaust connecting screw tube 6 connected to the other side, the connecting cap 7, the rigid tube 8, the connecting tube 9 and the convex head 91 thereon, and is conveyed to the refrigeration base 101 again through the adapter base 111 for cooling, so as to achieve the effect of automatically and rapidly dissipating heat from the device body 1, and the cold air can circulate, thereby ensuring the continuous auxiliary cooling work for the device body 1, solving the problem of poor heat dissipation effect of the existing inductor, and not affecting the normal operation of the external electrode 2 during the heat dissipation, buffering, positioning protection and easy disassembly of the device body 1.

[0064] Moreover, when the air flow passes through the drainage groove 43, the air flow squeezes the flow blocking plate 422 to move it downward. After the flow blocking plate 422 moves downward, it drives the flow-through chuck 424 on the sliding shaft 423 to squeeze downward through the passive pressure plate 421. The flow-through chuck 424 drives the protective rubber ball 425 to squeeze towards the device body 1. When squeezing, the gas inside the protective rubber ball 425 is discharged through the flow-through chuck 424 towards the surface of the device body 1. The discharged gas has the effects of air cooling and dust blowing on the surface of the device body 1, so as to realize the secondary cooling of the surface of the device body 1 by using the power of the cold air circulation, improve the cooling effect on the device body 1, and also have the function of automatically cleaning the device body 1.

[0065] The above embodiments are only used to illustrate the embodiments of the present invention, rather than to limit the embodiments of the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention shall be defined by the claims.

Claims

1. A high-inductance multilayer low-temperature co-fired ceramic inductor, characterized in that: include: A device body (1), wherein both sides of the device body (1) are provided with external electrodes (2); A clamping protection device (3), wherein the clamping protection device (3) is arranged on the device body (1) and is used to fix and protect the device body (1); A hollow heat sink (4), the hollow heat sink (4) being arranged on the clamping protection device (3), the hollow heat sink (4) being respectively fixedly connected with a one-way air inlet connecting spiral tube (5) and a one-way air outlet connecting spiral tube (6), the one-way air inlet connecting spiral tube (5) and the one-way air outlet connecting spiral tube (6) being both threadedly connected with a connecting cap (7), the connecting cap (7) being rotatably connected with a hard tube (8), the end of the hard tube (8) being fixedly connected with a connecting tube (9), and the end of the connecting tube (9) being provided with a cold air circulation cooling device (10); The cold air circulation cooling device (10) comprises a refrigeration base (101), one side of the refrigeration base (101) is connected to the end of a connecting pipe (9) via a multi-head connection device (11), an active motor (102) is mounted on the refrigeration base (101), an output shaft of the active motor (102) is clamped with a bent rod (103), an end of the bent rod (103) is slidably connected to a limit base (104), and one side of the limit base (104) is connected to the limit base (104) via a connecting rod ( 105) is fixedly connected to an air pressure plate (106), a semiconductor refrigerator (107) is installed inside the refrigeration base (101) on one side of the air pressure plate (106), the surface of the air pressure plate (106) is slidably connected to the inner wall of the refrigeration base (101), an air inlet and an air outlet are respectively opened on one side of the refrigeration base (101), the number of the multi-head connection devices (11) is set to two, and the two multi-head connection devices (11) are respectively connected to the air inlet and the air outlet.

2. The high-inductance multilayer low-temperature co-fired ceramic inductor according to claim 1, characterized in that: A heat sink (41) is fixedly connected to one side of the hollow heat sink (4), an airflow blowing device (42) is provided inside the hollow heat sink (4), a drainage groove (43) is provided inside the hollow heat sink (4), and a one-way air inlet valve and a one-way air outlet valve are provided inside the one-way air inlet connecting spiral tube (5) and the one-way air outlet connecting spiral tube (6), respectively.

3. The high-inductance multilayer low-temperature co-fired ceramic inductor according to claim 1, characterized in that: The multi-head connection device (11) comprises an adapter seat (111), one side of the adapter seat (111) is fixedly connected to one side of the refrigeration base (101), the other side of the adapter seat (111) is provided with a plurality of slots (112), a plug rod (113) is fixedly connected inside the adapter seat (111), a blocking valve (114) is slidably connected to the plug rod (113), and an upper magnetic clamping seat (115) and a lower magnetic clamping seat (116) are slidably connected to the surface of the adapter seat (111).

4. The large inductance multilayer low temperature co-fired ceramic inductor according to claim 3, characterized in that: One end of the connecting tube (9) away from the hard tube (8) is fixedly connected to a convex head (91), and the convex head (91) is inserted into any one of the plurality of slots (112).

5. The large inductance multilayer low temperature co-fired ceramic inductor according to claim 3, characterized in that: A spring is fixedly connected between the surface of the blocking valve (114) and the inner wall of the adapter seat (111); the upper magnetic clamping seat (115) and the lower magnetic clamping seat (116) are both clamped with the surface of the protruding head (91); the bottom of the upper magnetic clamping seat (115) and the top of the lower magnetic clamping seat (116) are magnetically connected; and both sides of the upper magnetic clamping seat (115) and the lower magnetic clamping seat (116) are provided with hanging ears.

6. The large inductance multilayer low temperature co-fired ceramic inductor according to claim 2, characterized in that: The clamping protection device (3) comprises an upper clamping seat (31), the interior of the upper clamping seat (31) is rotatably connected to a bidirectional threaded rod (32), the end of the bidirectional threaded rod (32) is rotatably connected to a lower clamping seat (33), the surface of the bidirectional threaded rod (32) is respectively threadedly connected to an upper clamping seat (34) and a lower clamping seat (35), the upper clamping seat (34) is rotatably connected to a screw seat (39), the bidirectional threaded rod (32) is fixedly connected to a gear (36), the gear (36) is transmission-engaged with a toothed belt (37), and the end of the gear (36) away from the bidirectional threaded rod (32) is fixedly connected to a rotating handle (38).

7. The high-inductance multilayer low-temperature co-fired ceramic inductor according to claim 6, characterized in that: The inner walls of the upper clamp seat (34) and the lower clamp seat (35) are respectively slidably connected to the surface of the device body (1); the inner wall of the screw seat (39) is threadedly connected to the surface of the one-way air intake connecting screw tube (5); a slot is provided on the upper clamp seat (34); the heat sink (41) is inserted into the slot; a protective bottom plate (310) is fixedly connected to the lower clamp seat (35); the surface of the protective bottom plate (310) contacts the surface of the device body (1); and the toothed belt (37) is located inside the upper clamp seat (31) for transmission.

8. The large inductance multilayer low temperature co-fired ceramic inductor according to claim 6, characterized in that: The airflow blowing device (42) comprises a passive pressure plate (421), the surface of the passive pressure plate (421) is slidably connected to the inside of the hollow heat sink (4), one end of the passive pressure plate (421) is fixedly connected to a baffle plate (422), the other end of the passive pressure plate (421) is fixedly connected to a circulation chuck (424) via a sliding shaft (423), a protective rubber ball (425) is fixedly connected to the circulation chuck (424), the interior of the protective rubber ball (425) is connected to the interior of the circulation chuck (424), and an air outlet is provided on the circulation chuck (424), the baffle plate (422) is slidably connected to the inside of the drainage groove (43), and the surface of the sliding shaft (423) is slidably connected to the bottom of the hollow heat sink (4).

9. A design method for a high-inductance multilayer low-temperature co-fired ceramic inductor, characterized in that: A high-inductance multilayer low-temperature co-fired ceramic inductor as claimed in any one of claims 6 to 8, comprising: Step A: protection, by rotating any one of the plurality of rotating handles (38), driving the bidirectional threaded rod (32) on the gear (36) to rotate, and the bidirectional threaded rod (32) drives the upper clamping seat (31) and the lower clamping seat (33) to move relative to each other, thereby completing the clamping protection work of the entire device body (1); Step B: passive heat dissipation, the hollow heat dissipation plate (4) absorbs the heat on the device body (1) and dissipates the heat through a plurality of heat dissipation fins (41); Step C: Active heat dissipation, including the following steps: C1, cooling, starting the semiconductor refrigerator (107), the semiconductor refrigerator (107) cools the gas in the cooling base (101); C2, conveying, starting the active motor (102), the output shaft of the active motor (102) controls the limit base (104) to move reciprocatingly and linearly through the reciprocating rotation of the bent rod (103), the limit base (104) drives the air pressure plate (106) to move as a piston in the refrigeration base (101) through the connecting rod (105), the air pressure plate (106) squeezes the cold air in the refrigeration base (101) to the adapter seat (111) at the air outlet, the adapter seat (111) transfers the cold air from the connecting pipe (9) to the hard pipe (8) through the clamping convex head (91), and the hard pipe (8) conveys the cold air to the hollow heat sink (4) through the connection cap (7) and the one-way air inlet connecting spiral tube (5); C3, circulation, cold air flows from one side of the hollow heat sink (4) to the other side through the drainage groove (43), and active heat dissipation and rapid temperature reduction of the hollow heat sink (4) are achieved during the circulation, and the gas is transported to the adapter seat (111) at the air inlet through the one-way air outlet connecting spiral tube (6) connected to the other side and the connecting cap (7), hard tube (8), connecting tube (9) and convex head (91) thereon, and the gas is transported again to the refrigeration base (101) through the adapter seat (111) for cooling.

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