CN114421918B - Bulk acoustic wave filter chip - Google Patents
Bulk acoustic wave filter chip Download PDFInfo
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- CN114421918B CN114421918B CN202210327586.7A CN202210327586A CN114421918B CN 114421918 B CN114421918 B CN 114421918B CN 202210327586 A CN202210327586 A CN 202210327586A CN 114421918 B CN114421918 B CN 114421918B
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- wave filter
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- rod
- filter chip
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005253 cladding Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/0504—Holders; Supports for bulk acoustic wave devices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/08—Holders with means for regulating temperature
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a bulk acoustic wave filter chip, comprising: bulk acoustic wave filter chip body, pad, heat dissipation shell, bulk acoustic wave filter chip body sets up the bottom of heat dissipation shell, bulk acoustic wave filter chip body bottom sets up the pad. The bulk acoustic wave filter chip body passes through the pad links to each other with other circuits, because the heat dissipation shell is right the cladding of bulk acoustic wave filter chip body reduces external impurity to the influence of bulk acoustic wave filter chip body, better absorption simultaneously the produced heat of bulk acoustic wave filter body during operation dispels the heat through bigger surface area, improve performance and life.
Description
Technical Field
The invention belongs to the technical field of filters, and particularly relates to a bulk acoustic wave filter chip.
Background
With the advent of communication technology, filters have been used as a frequency selection device to remove interference by passing signals at specific frequencies and attenuating and filtering signals at other frequencies.
Today, as the operating frequency band of electronic devices is increasing, filter technology is also developing to maintain high performance in higher frequency bands and wider bandwidths. The acoustic filter screens frequencies during the conversion process of "electricity, sound and electricity", and there are two ways for an acoustic wave to propagate in a solid, one is a BAW (bulk acoustic wave filter), i.e. to pass through the inside of the solid in the form of a longitudinal wave or a transverse wave, and the other is a SAW (surface acoustic wave filter), i.e. a surface acoustic wave. Since the signal attenuation will increase due to the increase of the operating frequency, the filter needs to support high-power rf signals to ensure long-distance transmission, so the heat dissipation is very important in the high frequency band. As shown in fig. 1, BAW has low natural heat dissipation efficiency only through its housing 100, affecting its operating performance.
Disclosure of Invention
Accordingly, the present invention has been made to solve the above-mentioned disadvantages of the prior art.
Therefore, the technical scheme adopted is that the bulk acoustic wave filter chip comprises: bulk acoustic wave filter chip body, pad, heat dissipation shell, bulk acoustic wave filter chip body sets up the bottom of heat dissipation shell, bulk acoustic wave filter chip body bottom sets up the pad.
Preferably, the top of the heat dissipation shell is connected with the bottom of the shell, and the top of the shell is provided with a heat dissipation port.
Preferably, the heat dissipation port is provided with a filter screen.
Preferably, a heat dissipation device is disposed in the housing, and the heat dissipation device includes: the device comprises a motor, a worm wheel, a rotating shaft, fan blades, a first rotating rod, a first sliding block, a first swinging rod, a first sliding chute, a second sliding block, a sliding rail, a first connecting shaft, a pushing plate, a first pushing rod, a first piston, a first air cylinder, an air inlet, an air hole, a first spring and a one-way valve;
the inner wall of the shell is provided with a motor, the output end of the motor is connected with one end of a worm, the other end of the worm is meshed with the worm wheel, the worm wheel is connected with the middle part of the rotating shaft, the fan blade is further arranged at the middle part of the rotating shaft, one end of the rotating shaft is rotatably connected with the top of the heat dissipation shell, the other end of the rotating shaft is perpendicularly connected with one end of a first rotating rod, the other end of the first rotating rod is rotatably connected with the bottom end of a first sliding block, the first sliding block is slidably connected with a first sliding groove, the first sliding groove is arranged on a first swinging rod, one end of the first swinging rod is connected with one end of a first connecting shaft, the first connecting shaft penetrates through a second sliding block, the first connecting shaft is rotatably connected with the second sliding block, and the first connecting shaft is perpendicular to the first swinging rod, the right side of the second sliding block is connected with the sliding rail in a sliding mode, and one end of the sliding rail is connected with the rear wall in the shell;
the utility model discloses a gas spring, including casing antetheca and back wall, shells inner wall is provided with first inflator, first inflator inside with the air inlet intercommunication, be provided with first piston in the first inflator, first piston is provided with the check valve, first piston is connected with the one end of first push rod, first push rod passes first inflator keeps away from the one end of air inlet, the other end of first push rod with the push pedal is connected, first inflator keeps away from the one end of air inlet is provided with the gas pocket, the push pedal with first inflator keeps away from the one end of air inlet is passed through first spring coupling, the push pedal can with the other end contact of first swinging arms.
Preferably, the end of the first swing lever that can contact the push plate is shaped like a hemisphere.
Preferably, the other set of the push plate, the first push rod, the first piston, the first air cylinder, the air inlet, the air hole, and the first spring are symmetrically disposed on the rear wall of the housing with respect to a symmetry line of the front wall and the rear wall of the housing.
Preferably, the slide rail is close to the one end of casing back wall is provided with electric putter, electric putter's output with the second slider is connected, be provided with temperature sensor and controller on the casing back wall, temperature sensor with controller electric connection, the controller with electric putter electric connection, controller and motor electric connection.
Preferably, one end of the first connecting shaft, which is far away from the first swinging rod, is connected with one end of the second swinging rod, the second swing rod is provided with a second sliding chute which is connected with the third sliding block in a sliding way, the third sliding block is connected with the inner wall of the second sliding groove through a second spring, the top end of the third sliding block is rotatably connected with one end of the second rotating rod, the other end of the second rotating rod is vertically connected with one end of a second connecting shaft, the other end of the second connecting shaft is vertically connected with one end of the brush rod, the second connecting shaft penetrates through one end of the fixed rod and is rotatably connected with one end of the fixed rod, the second dwang with the brush-holder stud is perpendicular on the horizontal plane, the other end of dead lever with the casing back wall is connected, be provided with the brush hair on the brush-holder stud, the brush hair can with the filter screen contact.
Preferably, an opening is formed in the shell, a sealing plate is arranged on the opening, and the sealing plate is connected with the shell through a screw.
Preferably, a sealing ring is arranged on the sealing plate.
The technical scheme of the invention has the following advantages: the bulk acoustic wave filter chip body passes through the pad links to each other with other circuits, because the heat dissipation shell is right the cladding of bulk acoustic wave filter chip body reduces external impurity to the influence of bulk acoustic wave filter chip body, better absorption simultaneously the produced heat of bulk acoustic wave filter body during operation dispels the heat through bigger surface area, improve performance and life.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a prior art diagram;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic top view of the first sway bar of the present invention;
FIG. 4 is a schematic view of an adjustment mechanism in the present invention;
FIG. 5 is a schematic view of the connection of a second oscillating bar according to the present invention;
the method comprises the following steps of 1, bulk acoustic wave filter chip body; 2. a pad; 3. a heat dissipation housing; 4. a housing; 5. a heat dissipation port; 6. filtering with a screen; 7. a motor; 8. a worm; 9. a worm gear; 10. a rotating shaft; 11. a fan blade; 12. a first rotating lever; 13. a first slider; 14. a first swing lever; 15. a first chute; 16. a second slider; 17. a slide rail; 18. a first connecting shaft; 19. pushing the plate; 20. a first push rod; 21. a first piston; 22. a first gas cylinder; 23. an air inlet; 24. air holes; 25. a first spring; 27. an electric push rod; 28. a temperature sensor; 29. a controller; 30. a second chute; 31. a third slider; 32. a second spring; 33. a second rotating lever; 34. a second connecting shaft; 35. a brush bar; 36. brushing; 37. fixing the rod; 38. an opening; 39. a sealing plate; 40. a one-way valve; 41. a second swing lever; 100. a housing.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The present invention provides a bulk acoustic wave filter chip, as shown in fig. 2, including: bulk acoustic wave filter chip body 1, pad 2, heat dissipation shell 3, bulk acoustic wave filter chip body 1 sets up the bottom of the 3 bodies of heat dissipation shell, 1 bottom of bulk acoustic wave filter chip body sets up pad 2.
The working principle and the beneficial effects of the technical scheme are as follows: the bulk acoustic wave filter chip body 1 is connected with other circuits through the bonding pad 2, and because the radiating shell 3 is right for the cladding of the bulk acoustic wave filter chip body 1, the influence of external impurities on the bulk acoustic wave filter chip body 1 is reduced, and meanwhile, the heat generated when the bulk acoustic wave filter chip body 1 works is better absorbed, and the heat is radiated through a larger surface area, so that the performance is improved, and the service life is prolonged.
In one embodiment, the top of the heat dissipation shell 3 is connected with the bottom of the shell 4, and the top of the shell 4 is provided with a heat dissipation port 5.
In one embodiment, the heat dissipation opening 5 is provided with a filter screen 6, and the filter screen 6 can reduce dust entering the housing 4, so as to prevent the dust from covering the surface of the heat dissipation housing 3 to affect heat dissipation.
In one embodiment, as shown in fig. 2-3, a heat sink is disposed within the housing 4, the heat sink comprising: the device comprises a motor 7, a worm 8, a worm wheel 9, a rotating shaft 10, fan blades 11, a first rotating rod 12, a first sliding block 13, a first swinging rod 14, a first sliding chute 15, a second sliding block 16, a sliding rail 17, a first connecting shaft 18, a push plate 19, a first push rod 20, a first piston 21, a first air cylinder 22, an air inlet 23, an air hole 24, a first spring 25 and a one-way valve 40;
the inner wall of the shell 4 is provided with a motor 7, the output end of the motor 7 is connected with one end of a worm 8, the other end of the worm 8 is meshed with a worm wheel 9, the worm wheel 9 is connected with the middle part of a rotating shaft 10, the middle part of the rotating shaft 10 is also provided with fan blades 11, one end of the rotating shaft 10 is rotatably connected with the top of the heat dissipation shell 3, the other end of the rotating shaft 10 is vertically connected with one end of a first rotating rod 12, the other end of the first rotating rod 12 is rotatably connected with the bottom end of a first sliding block 13, the first sliding block 13 is slidably connected with a first sliding groove 15, the first sliding groove 15 is arranged on the first oscillating rod 14, one end of the first oscillating rod 14 is connected with one end of a first connecting shaft 18, the first connecting shaft 18 penetrates through a second sliding block 16, the first connecting shaft 18 is rotatably connected with the second sliding block 16, the first connecting shaft 18 is perpendicular to the first swing rod 14, the right side of the second slider 16 is slidably connected with the slide rail 17, and one end of the slide rail 17 is connected with the rear wall inside the housing 4;
the front wall and the rear wall of the shell 4 are respectively provided with the air inlet 23, the inner wall of the shell 4 is provided with the first air cylinder 22, the inside of the first air cylinder 22 is communicated with the air inlet 23, the first air cylinder 22 is internally provided with a first piston 21, the first piston 21 is provided with a one-way valve 40, the first piston 21 is connected with one end of a first push rod 20, the first push rod 20 penetrates through the first air cylinder 22 and is far away from one end of the air inlet 23, the other end of the first push rod 20 is connected with the push plate 19, one end of the first air cylinder 22, which is far away from the air inlet 23, is provided with the air hole 24, one end, which is far away from the air inlet 23, of the push plate 19 and the first air cylinder 22 is connected through the first spring 25, and the push plate 19 can be contacted with the other end of the first swing rod 14.
The working principle and the beneficial effects of the technical scheme are as follows: the motor 7 drives the worm 8 to rotate, so that the worm wheel 9 drives the rotating shaft 10 to rotate, the fan blades 11 rotate, air inside the shell 4 is stirred, air flow is generated, hot air inside the shell 4 is discharged through the heat dissipation port 5, meanwhile, the rotating shaft 10 drives the first rotating rod 12 to rotate, the first sliding block 13 slides on the first sliding groove 15, one end, far away from the second sliding block 16, of the first oscillating rod 14 swings back and forth, the push plate 19 is repeatedly pushed, the piston is made to be close to the air inlet 23 by the push plate 19 through the first push rod 20, the one-way valve 40 is opened, air outside the shell 4 continuously enters the first air cylinder 22 through the air inlet 23 and then enters the shell 4, heat in the shell 4 is better discharged, and when the first oscillating rod 14 is not in contact with the push plate 19 any more, the first spring 25 makes the push plate 19 far away from the air inlet 23, at this time, the one-way valve 40 is closed, and the air in the first air cylinder 22 is pressed into the inside of the housing 4, so that the hot air in the housing 4 is quickly discharged from the heat-radiating port 5.
In one embodiment, as shown in fig. 3, the end of the first swing lever 14 that can contact the push plate 19 is shaped like a hemisphere, and the contact between the first swing lever 14 and the push plate 19 is smoother, and the abrasion is reduced.
In one embodiment, another set of the push plate 19, the first push rod 20, the first piston 21, the first cylinder 22, the air inlet 23, the air hole 24, and the first spring 25 is disposed on the rear wall of the housing 4 symmetrically with respect to a symmetry line of the front wall and the rear wall of the housing 4. When the first swing rod 14 swings back and forth, the two push plates 19 are alternately pushed, so that the amount of air entering the housing 4 is further increased, the air discharge amount of the air inside the housing 4 from the heat dissipation port 5 is increased, and the air flow is continuously changed and the heat dissipation effect is improved because the two first air cylinders 22 alternately supply air.
In one embodiment, as shown in fig. 4, an electric push rod 27 is disposed at one end of the slide rail 17 close to the rear wall of the housing 4, an output end of the electric push rod 27 is connected to the second slider 16, a temperature sensor 28 and a controller 29 are disposed on the rear wall of the housing 4, the temperature sensor 28 is electrically connected to the controller 29, the controller 29 is electrically connected to the electric push rod 27, and the controller 29 is electrically connected to the motor 7.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature sensor 28 can detect the temperature value in the housing 4, when the temperature increases or decreases, the controller 29 can control the electric push rod 27 to drive the second slider 16 to reciprocate on the slide rail 17 to change the position of the first connecting shaft 18, the swing fulcrum of the first swing lever 14 is changed due to the change of the position of the first connecting shaft 18, so that the swing amplitude of the first swing lever 14 is adjusted, when the temperature increases, the swing amplitude of the first swing lever 14 is increased, correspondingly, the reciprocating amplitude of the push plate 19 is increased, so that the air intake amount of the first air cylinder 22 per time is adjusted, the air intake flux is increased, the heat dissipation efficiency is improved, when the temperature decreases, the swing amplitude of the first swing lever 14 is reduced, the air intake flux of the first air cylinder 22 per time is reduced, the heat dissipation efficiency is reduced, and the intelligent adjustment of the heat dissipation efficiency is realized; in addition, the controller 29 can also increase or decrease the rotation speed of the motor 7, increase or decrease the air intake frequency of the first air cylinder 22, and realize intelligent adjustment of the air intake frequency.
In one embodiment, as shown in fig. 5, one end of the first connecting shaft 18 away from the first swing lever 14 is connected to one end of a second swing lever 41, a second sliding slot 30 is disposed on the second swing lever 41, the second sliding slot 30 is slidably connected to a third sliding block 31, the third sliding block 31 is connected to an inner wall of the second sliding slot 30 through a second spring 32, a top end of the third sliding block 31 is rotatably connected to one end of a second rotating lever 33, the other end of the second rotating lever 33 is vertically connected to one end of a second connecting shaft 34, the other end of the second connecting shaft 34 is vertically connected to one end of a brush bar 35, the second connecting shaft 34 passes through one end of a fixing rod 37, the second connecting shaft 34 is rotatably connected to one end of the fixing rod 37, the second rotating lever 33 is vertical to the brush bar 35 in a horizontal plane, and the other end of the fixing rod 37 is connected to a rear wall of the housing 4, the brush rod 35 is provided with bristles 36, and the bristles 36 can be in contact with the filter screen 6.
The working principle and the beneficial effects of the technical scheme are as follows: when first swinging arms 14 swings, second swinging arms 41 swings simultaneously, drives third slider 31 swing back and forth simultaneously along second spout 30 reciprocating slide, makes then second dwang 33 with brush-holder stud 35 swings, makes when flabellum 11 pivoted brush-holder stud 35 is last to be set up brush hair 36 is right filter screen 6 cleans, makes dust on the filter screen 6 upwards blows out, avoids falling into when cleaning inside casing 4, third slider 31 reciprocating slide, and the extrusion second spring 32 that makes a round trip produces the vibration for dust on the brush hair 36 is shaken off, blows off along with the air current, keeps the cleanness of brush hair.
In one embodiment, as shown in fig. 1, an opening 38 is provided on the housing 4, a sealing plate 39 is provided on the opening 38, the sealing plate 39 is screwed with the housing 4, and a sealing ring is provided on the sealing plate 39. The sealing plate can be conveniently detached, and the parts in the shell 4 can be conveniently maintained.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A bulk acoustic wave filter chip, comprising: the bulk acoustic wave filter comprises a bulk acoustic wave filter chip body (1), a bonding pad (2) and a heat dissipation shell (3), wherein the bulk acoustic wave filter chip body (1) is arranged at the bottom of the heat dissipation shell (3), the bonding pad (2) is arranged at the bottom of the bulk acoustic wave filter chip body (1), the top of the heat dissipation shell (3) is connected with the bottom of a shell (4), a heat dissipation port (5) is formed in the top of the shell (4), and a filter screen (6) is arranged in the heat dissipation port (5);
be provided with heat abstractor in casing (4), heat abstractor includes: the air pump comprises a motor (7), a worm (8), a worm wheel (9), a rotating shaft (10), fan blades (11), a first rotating rod (12), a first sliding block (13), a first swinging rod (14), a first sliding chute (15), a second sliding block (16), a sliding rail (17), a first connecting shaft (18), a push plate (19), a first push rod (20), a first piston (21), a first air cylinder (22), an air inlet (23), an air hole (24), a first spring (25) and a one-way valve (40);
the motor (7) is arranged on the inner wall of the shell (4), the output end of the motor (7) is connected with one end of the worm (8), the other end of the worm (8) is meshed with the worm wheel (9), the worm wheel (9) is connected with the middle part of the rotating shaft (10), the fan blades (11) are further arranged at the middle part of the rotating shaft (10), one end of the rotating shaft (10) is rotatably connected with the top of the heat dissipation shell (3), the other end of the rotating shaft (10) is perpendicularly connected with one end of the first rotating rod (12), the other end of the first rotating rod (12) is rotatably connected with the bottom end of the first sliding block (13), the first sliding block (13) is slidably connected with the first sliding groove (15), the first sliding groove (15) is arranged on the first swinging rod (14), one end of the first swinging rod (14) is connected with one end of the first connecting shaft (18), the first connecting shaft (18) penetrates through the second sliding block (16), the first connecting shaft (18) is rotatably connected with the second sliding block (16), the first connecting shaft (18) is perpendicular to the first swinging rod (14), the right side of the second sliding block (16) is slidably connected with the sliding rail (17), and one end of the sliding rail (17) is connected with the rear wall inside the shell (4);
the utility model discloses a gas cylinder, including casing (4), air inlet (23), first piston (21) are provided with check valve (40), first piston (21) are connected with the one end of first push rod (20), first push rod (20) pass first air cylinder (22) keep away from the one end of air inlet (23), the other end of first push rod (20) with push pedal (19) are connected, first air cylinder (22) are kept away from the one end of air inlet (23) be provided with air vent (24), push pedal (19) with the one end that first air cylinder (22) kept away from air inlet (23) is passed through first spring (25) are connected, the push plate (19) can be in contact with the other end of the first swing lever (14).
2. A bulk acoustic wave filter chip according to claim 1, characterized in that the end of the first rocking lever (14) that can be brought into contact with the push plate (19) is shaped like a hemisphere.
3. A bulk acoustic wave filter chip according to claim 1, characterized in that another set of said push plate (19), said first push rod (20), said first piston (21), said first cylinder (22), said air inlet (23), said air hole (24), said first spring (25) is provided on the rear wall of said housing (4) symmetrically with respect to the symmetry line of the front and rear walls of said housing (4).
4. The bulk acoustic wave filter chip according to claim 1, wherein an electric push rod (27) is disposed at one end of the slide rail (17) close to the rear wall of the housing (4), an output end of the electric push rod (27) is connected to the second slider (16), a temperature sensor (28) and a controller (29) are disposed on the rear wall of the housing (4), the temperature sensor (28) is electrically connected to the controller (29), the controller (29) is electrically connected to the electric push rod (27), and the controller (29) is electrically connected to the motor (7).
5. The bulk acoustic wave filter chip according to claim 4, wherein the end of the first connecting shaft (18) far away from the first oscillating rod (14) is connected with one end of a second oscillating rod (41), the second oscillating rod (41) is provided with a second sliding slot (30), the second sliding slot (30) is connected with a third sliding block (31) in a sliding manner, the third sliding block (31) is connected with the inner wall of the second sliding slot (30) through a second spring (32), the top end of the third sliding block (31) is rotatably connected with one end of a second rotating rod (33), the other end of the second rotating rod (33) is vertically connected with one end of a second connecting shaft (34), the other end of the second connecting shaft (34) is vertically connected with one end of a brush rod (35), and the second connecting shaft (34) passes through one end of a fixing rod (37), second connecting axle (34) with the one end of dead lever (37) is rotated and is connected, second dwang (33) with brush-holder stud (35) are perpendicular on the horizontal plane, the other end of dead lever (37) with casing (4) back wall connection, be provided with brush hair (36) on brush-holder stud (35), brush hair (36) can with filter screen (6) contact.
6. A bulk acoustic wave filter chip according to claim 1, characterized in that the housing (4) is provided with an opening (38), the opening (38) is provided with a sealing plate (39), and the sealing plate (39) is connected to the housing (4) by screws.
7. A bulk acoustic wave filter chip according to claim 6, characterized in that the sealing plate (39) is provided with a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327586.7A CN114421918B (en) | 2022-03-31 | 2022-03-31 | Bulk acoustic wave filter chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327586.7A CN114421918B (en) | 2022-03-31 | 2022-03-31 | Bulk acoustic wave filter chip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114421918A CN114421918A (en) | 2022-04-29 |
| CN114421918B true CN114421918B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210327586.7A Active CN114421918B (en) | 2022-03-31 | 2022-03-31 | Bulk acoustic wave filter chip |
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| CN113273080A (en) * | 2019-01-14 | 2021-08-17 | 华为技术有限公司 | Surface acoustic wave filter, preparation method thereof, radio frequency front-end chip and mobile terminal |
| CN214412686U (en) * | 2021-03-08 | 2021-10-15 | 技宝电子(日照)有限公司 | Broadband impedance element type surface acoustic wave filter |
| CN113725177A (en) * | 2021-08-30 | 2021-11-30 | 重庆电子工程职业学院 | Microelectronic chip heat dissipation device and heat dissipation method thereof |
| CN114157266A (en) * | 2022-02-07 | 2022-03-08 | 深圳新声半导体有限公司 | High-shielding surface acoustic wave filter |
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| US10141245B2 (en) * | 2016-08-24 | 2018-11-27 | Qorvo Us, Inc. | High-power acoustic device with improved performance |
| CN107834989B (en) * | 2017-11-08 | 2022-10-25 | 中电科技集团重庆声光电有限公司 | High-heat-dissipation ceramic shell structure applied to film bulk acoustic wave device |
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| CN113273080A (en) * | 2019-01-14 | 2021-08-17 | 华为技术有限公司 | Surface acoustic wave filter, preparation method thereof, radio frequency front-end chip and mobile terminal |
| CN112865736A (en) * | 2021-01-20 | 2021-05-28 | 广东省科学院半导体研究所 | SAW filter chip packaging structure, preparation method thereof and electronic equipment |
| CN214412686U (en) * | 2021-03-08 | 2021-10-15 | 技宝电子(日照)有限公司 | Broadband impedance element type surface acoustic wave filter |
| CN113725177A (en) * | 2021-08-30 | 2021-11-30 | 重庆电子工程职业学院 | Microelectronic chip heat dissipation device and heat dissipation method thereof |
| CN114157266A (en) * | 2022-02-07 | 2022-03-08 | 深圳新声半导体有限公司 | High-shielding surface acoustic wave filter |
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