CN111769353A - Design method of Bluetooth antenna and related equipment - Google Patents
Design method of Bluetooth antenna and related equipment Download PDFInfo
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- CN111769353A CN111769353A CN202010651252.6A CN202010651252A CN111769353A CN 111769353 A CN111769353 A CN 111769353A CN 202010651252 A CN202010651252 A CN 202010651252A CN 111769353 A CN111769353 A CN 111769353A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/005—Damping of vibrations; Means for reducing wind-induced forces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a design method of a Bluetooth antenna, which comprises the following steps; s1, designing the Bluetooth drive-by-wire box into a rectangular shape; s2, inserting the antenna main body, the antenna feed end and the antenna grounding end on the online control box; the invention also discloses a related device of the Bluetooth antenna, which comprises a box body, wherein the side wall of the box body is provided with a circular frame, the inner wall of the circular frame is fixedly connected with a negative pressure fan, and the negative pressure fan consists of a driving rod and a plurality of impellers. According to the invention, the antenna main body, the antenna feed end and the antenna grounding end are arranged in a triangular shape, so that the structure is stable, the antenna is prevented from being deformed by vibration and even broken, the use performance of the antenna is not influenced, the convection of air in the box body can be accelerated through the rotation of the negative pressure fan, the dissipation of heat in the box body is accelerated, meanwhile, the filter screen can be used for blocking external dust, and the problem that the dust is attached to an electronic element after entering the box body, so that the heat dissipation on the electronic element is difficult is avoided.
Description
Technical Field
The present invention relates to the field of bluetooth antenna technology, and in particular, to a bluetooth antenna design method and related devices.
Background
Bluetooth technology is an open global specification for wireless data and voice communication, is a special short-range wireless technology connection for establishing a communication environment for fixed and mobile devices based on low-cost short-range wireless connection, and is widely used in various occasions such as mobile phones, bluetooth headsets, computers and the like.
Because the bluetooth can be installed in the equipment that people need remove, make equipment receive vibrations easily when the transportation that does not stop, and then make the antenna receive the vibration, make the antenna warp easily and break even, and then the performance that leads to the antenna descends, moreover, present antenna installation box body can give off a large amount of heats at the during operation, only can rely on the convection current of self and air to carry out the heat exchange heat dissipation at present, the radiating effect is poor, make electronic component's on the box body control panel high temperature very easily, and then influence electronic component's normal life.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a design method of a Bluetooth antenna and related equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a design method of a Bluetooth antenna comprises the following steps;
s1, designing the Bluetooth drive-by-wire box into a rectangular shape, and arranging a PCB (printed Circuit Board) containing a Bluetooth chip in the middle of the drive-by-wire box;
s2, inserting the antenna main body, the antenna feed end and the antenna grounding end on the online control box;
s3, respectively arranging an antenna feed end and an antenna grounding end along the bottom of the line control box in a back-to-back manner, and coupling and connecting the antenna feed end and the antenna grounding end with a feed point and a grounding point on the PCB;
and S4, arranging the antenna main body along the side edge of the wire control box, and arranging the antenna main body, the antenna feed end and the antenna grounding end on the side wall of the wire control box in a triangular shape.
Preferably, in step S2, the antenna main body, the antenna feeding terminal and the antenna grounding terminal are all made of conductive metal materials.
A related device of a Bluetooth antenna comprises a box body, wherein the side wall of the box body is provided with a circular frame, the inner wall of the circular frame is fixedly connected with a negative pressure fan, the negative pressure fan consists of a driving rod and a plurality of impellers, the side wall of the box body far away from the circular frame is provided with a filter frame, the inner wall of the filter frame is provided with an annular groove, the inner wall of the annular groove is connected with a magnetic ring in a sliding way, the side wall of the magnetic ring is fixedly connected with the inner wall of the annular groove through a first spring, the inner wall of the magnetic ring is fixedly connected with a filter screen, the upper end of the box body is provided with an L-shaped groove, a first driving mechanism for driving the magnetic ring to slide back and forth on the inner wall of the annular groove is arranged in the L-shaped groove, the utility model discloses a box body, including box body, bottom fixedly connected with fixed block, circular frame, cavity, the confession liquid mechanism that supplies liquid is installed to the condenser pipe in the cavity.
Preferably, first actuating mechanism includes the magnetic path of sliding connection at the horizontal inner wall of L type groove, the perpendicular inner wall sliding connection in L type groove has magnet, the magnet lower extreme passes through second spring and L type inslot bottom fixed connection, magnetic path and magnet are through connecting rope fixed connection, one of them the impeller adopts magnetic material to make.
Preferably, the corner of the L-shaped groove is rotatably connected with a guide wheel through a rotating shaft, and the connecting rope is attached to the side wall of the guide wheel.
Preferably, the liquid supply mechanism includes the fixed plate of fixed connection at the cavity inner wall, the sealed sliding connection of fixed plate lateral wall has the montant, montant lower extreme fixedly connected with sliding plug, constitute the stock solution chamber between sliding plug lower extreme and the cavity inner wall, the stock solution intracavity is filled there is the coolant liquid, constitute the exchange chamber between fixed plate lower extreme, sliding plug upper end and the cavity inner wall, stock solution intracavity wall passes through the feed liquor pipe and is connected with condenser pipe one end, the exchange chamber passes through drain pipe and condenser pipe other end fixed connection, install the gliding second actuating mechanism of drive sliding plug about the cavity inner wall on the actuating lever.
Preferably, second actuating mechanism includes the disc of fixed connection at the actuating lever lateral wall, the disc lateral wall rotates through the pivot and connects the pull rod, the pull rod lower extreme runs through the fixed block upper end and extends to in the cavity, montant upper end fixedly connected with slide, slide lateral wall and cavity inner wall sliding connection, the pull rod lower extreme rotates with the slide upper end to be connected.
Preferably, the coolant is one of an alcohol coolant, a glycerin coolant, and a glycol coolant.
The invention has the following beneficial effects:
1. the Bluetooth chip is arranged in the middle of the wire control box, so that the Bluetooth chip is subjected to minimum vibration when the wire control box is subjected to vibration, and in addition, the antenna main body, the antenna feed end and the antenna grounding end are arranged in a triangular shape, so that the structure of the antenna is stable, the antenna is prevented from being subjected to vibration, the antenna is easy to deform or even break, and the service performance of the antenna is further reduced;
2. by arranging the negative pressure fan and the filter screen, the convection of air in the box body can be accelerated by the rotation of the negative pressure fan, so that the dissipation of heat in the box body is accelerated, meanwhile, the filter screen can block external dust, and the dust is prevented from attaching to an electronic element after entering the box body, so that the heat dissipation on the electronic element is difficult;
3. by arranging the magnetic ring, the first spring, the magnetic block, the magnet, the second spring and the connecting rope, the impeller made of magnetic materials continuously sweeps below the magnet by the rotation of the negative pressure fan, when the impeller is close to the magnet, the magnet slides downwards under the action of the magnetic attraction of the impeller, the magnetic block is driven to slide rightwards on the inner wall of the L-shaped groove by the connecting rope, the magnetic ring is driven to slide on the inner wall of the annular groove, when the impeller is far away from the magnet, the magnetic attraction between the magnet and the impeller is smaller, the magnet slides upwards under the action of the second spring, the acting force of the connecting rope on the magnetic block disappears, the magnetic ring slides to the original position under the action of the elasticity of the first spring, the magnetic block is driven to slide to the original position, and when the impeller continuously sweeps below the magnet, the magnetic ring continuously slides leftwards and rightwards on the inner wall of the annular groove, the filter screen is shaken, and dust, increase the air circulation;
4. by arranging the disc, the pull rod, the fixed block, the sliding plate, the vertical rod and the sliding plug, the driving rod rotates to drive the disc to rotate, the pull rod is further driven to slide up and down on the upper end of the fixed block, the sliding plate is further driven to slide up and down on the inner wall of the cavity, the sliding plug is driven to slide up and down on the inner wall of the cavity, when the sliding plug slides down on the inner wall of the cavity, the space of the liquid storage cavity is reduced, the space of the exchange cavity is increased, the cooling liquid in the liquid storage cavity enters the condenser pipe through the liquid inlet pipe and then enters the exchange cavity through the liquid outlet pipe, when the sliding plug slides up on the inner wall of the cavity, the space of the exchange cavity is reduced, the space of the liquid storage cavity is increased, the cooling liquid in the exchange cavity enters the condenser pipe through the liquid outlet pipe and then enters the liquid storage cavity through the liquid, the absorption and the dissipation of the heat in the box body are accelerated.
Drawings
Fig. 1 is a schematic diagram of a method for designing a bluetooth antenna and a related device according to the present invention;
fig. 2 is a schematic structural diagram of a bluetooth antenna design method and related devices according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
FIG. 5 is an enlarged view of the structure at C in FIG. 2;
fig. 6 is a schematic side view of a circular frame in a bluetooth antenna design method and related devices according to the present invention.
In the figure: the device comprises a box body 1, a circular frame 2, a negative pressure fan 3, a driving rod 31, an impeller 32, a filter frame 4, an annular groove 5, a first spring 6, a magnetic ring 7, a filter screen 8, a 9L-shaped groove, a magnetic block 10, a second spring 11, a magnet 12, a connecting rope 13, a guide wheel 14, a condenser tube 15, a fixed block 16, a cavity 17, a liquid storage cavity 171, an exchange cavity 172, a fixed plate 18, a sliding plug 19, a vertical rod 20, a sliding plate 21, a pull rod 22, a disc 23, a liquid inlet tube 24 and a liquid outlet tube 25.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a method for designing a bluetooth antenna includes the following steps;
s1, designing the Bluetooth drive-by-wire box into a rectangular shape, and arranging a PCB (printed Circuit Board) containing a Bluetooth chip in the middle of the drive-by-wire box;
s2, inserting the antenna main body, the antenna feed end and the antenna grounding end on the online control box;
s3, respectively arranging an antenna feed end and an antenna grounding end along the bottom of the line control box in a back-to-back manner, and coupling and connecting the antenna feed end and the antenna grounding end with a feed point and a grounding point on the PCB;
and S4, arranging the antenna main body along the side edge of the wire control box, and arranging the antenna main body, the antenna feed end and the antenna grounding end on the side wall of the wire control box in a triangular shape.
In step S2, the antenna body, the antenna feeding terminal and the antenna grounding terminal are made of conductive metal materials.
According to the method, the Bluetooth chip is arranged in the middle of the wire control box, so that the Bluetooth chip is subjected to minimum vibration when the wire control box is subjected to vibration, and in addition, the antenna main body, the antenna feed end and the antenna grounding end are arranged in a triangular mode, so that the structure is stable, and the phenomenon that the antenna is deformed due to the vibration of the antenna, and further the use performance of the antenna is influenced is avoided.
Referring to fig. 2-6, the invention further provides related equipment of a bluetooth antenna, which comprises a box body 1, wherein a circular frame 2 is arranged on the side wall of the box body 1, a negative pressure fan 3 is fixedly connected to the inner wall of the circular frame 2, the negative pressure fan 3 is composed of a driving rod 31 and a plurality of impellers 32, a filter frame 4 is arranged on the side wall of the box body 1, which is far away from the circular frame 2, an annular groove 5 is arranged on the inner wall of the filter frame 4, a magnetic ring 7 is slidably connected to the inner wall of the annular groove 5, the side wall of the magnetic ring 7 is fixedly connected with the inner wall of the annular groove 5 through a first spring 6, a filter screen 8 is fixedly connected to the inner wall of the magnetic ring 7, an L-shaped groove 9 is arranged at the upper end of the box body 1, a first driving mechanism for driving the magnetic ring 7 to slide back and forth on the inner wall of the annular groove 5 is.
First actuating mechanism includes sliding connection at the magnetic path 10 of the horizontal inner wall of L type groove 9, and the perpendicular inner wall sliding connection of L type groove 9 has magnet 12, and magnet 12 lower extreme passes through second spring 11 and bottom fixed connection in L type groove 9, and magnetic path 10 and magnet 12 are through connecting 13 fixed connection of rope, and one of them impeller 32 adopts magnetic material to make, and L type groove 9 corner rotates through the pivot to be connected with leading wheel 14, and connects rope 13 and the laminating of the 14 lateral walls of leading wheel.
The liquid supply mechanism comprises a fixed plate 18 fixedly connected to the inner wall of the cavity 17, the side wall of the fixed plate 18 is connected with a vertical rod 20 in a sealing and sliding mode, the lower end of the vertical rod 20 is fixedly connected with a sliding plug 19, a liquid storage cavity 171 is formed between the lower end of the sliding plug 19 and the inner wall of the cavity 17, cooling liquid is filled in the liquid storage cavity 171, the lower end of the fixed plate 18, an exchange cavity 172 is formed between the upper end of the sliding plug 19 and the inner wall of the cavity 17, the inner wall of the liquid storage cavity 171 is connected with one end of a condensation pipe 15 through a liquid inlet pipe 24, the exchange cavity 172 is fixedly connected with the other end of the condensation pipe 15 through a.
The second driving mechanism comprises a disc 23 fixedly connected to the side wall of the driving rod 31, the side wall of the disc 23 is rotatably connected with a pull rod 22 through a rotating shaft, the lower end of the pull rod 22 penetrates through the upper end of the fixing block 16 and extends into the cavity 17, a sliding plate 21 is fixedly connected to the upper end of the vertical rod 20, the side wall of the sliding plate 21 is slidably connected with the inner wall of the cavity 17, and the lower end of the pull rod 22 is rotatably connected with the upper end.
The cooling liquid is one of alcohol type cooling liquid, glycerol type cooling liquid and glycol type cooling liquid.
In the invention, when an electronic element in a box body 1 works, a negative pressure fan 3 is driven to rotate, the negative pressure fan 3 rotates to accelerate convection between air in the box body 1 and outside air, and further accelerate heat dissipation in the box body 1, meanwhile, a filter screen 8 fixedly connected to the inner wall of a magnetic ring 7 can block outside dust, the negative pressure fan 3 rotates to enable an impeller 32 made of magnetic material to continuously rotate and sweep below a magnet 12, when the impeller 32 is close to the magnet 12, the magnet 12 slides downwards on the inner wall of an L-shaped groove 9 under the action of the magnetic attraction of the impeller 32, and further drives a magnet block 10 to slide rightwards on the inner wall of the L-shaped groove 9 through a connecting rope 13, and further drives the magnetic ring 7 to slide on the inner wall of an annular groove 5, when the impeller 32 is far away from the magnet 12, the magnetic attraction between the magnet 12 and the impeller 32 is smaller, and at the moment, the magnet 12 slides, at the moment, the acting force of the connecting rope 13 on the magnetic block 10 disappears, and then the magnetic ring 7 slides to the original position on the inner wall of the annular groove 5 under the elastic force action of the first spring 6 and drives the magnetic block 10 to slide to the original position, and the operations are repeated, so that when the impeller 32 continuously sweeps below the magnet 12, the magnetic ring 7 can continuously slide left and right on the inner wall of the annular groove 5, and then the filter screen 8 is shaken, and further dust on the filter screen 8 is shaken and cleaned;
the negative pressure fan 3 rotates to drive the disc 23 fixedly connected to the side wall of the driving rod 31 to rotate, and further drives the pull rod 22 rotatably connected to the side wall of the disc 23 to slide up and down on the upper end of the fixing block 16, and further drives the sliding plate 21 rotatably connected to the lower end of the pull rod 22 to slide up and down on the inner wall of the cavity 17, and further the sliding plate 21 drives the sliding plug 19 to slide up and down on the inner wall of the cavity 17 through the vertical rod 20, when the sliding plug 19 slides down on the inner wall of the cavity 17, the space of the liquid storage cavity 171 is reduced, the space of the exchange cavity 172 is increased, so that the cooling liquid in the liquid storage cavity 171 enters the condensation pipe 15 through the liquid inlet pipe 24, and then enters the liquid storage cavity 171 through the liquid outlet pipe 25, and when the sliding plug 19 slides up on the inner wall of the cavity 17, the space of the exchange cavity 172 is reduced, the space of the liquid storage cavity, the above-mentioned steps are repeated, so that when the sliding plug 19 slides up and down on the inner wall of the cavity 17, the cooling liquid continuously circulates in the condensation pipe 15, and the absorption and the dissipation of heat in the box body 1 are accelerated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A design method of a Bluetooth antenna is characterized by comprising the following steps;
s1, designing the Bluetooth drive-by-wire box into a rectangular shape, and arranging a PCB (printed Circuit Board) containing a Bluetooth chip in the middle of the drive-by-wire box;
s2, inserting the antenna main body, the antenna feed end and the antenna grounding end on the online control box;
s3, respectively arranging an antenna feed end and an antenna grounding end along the bottom of the line control box in a back-to-back manner, and coupling and connecting the antenna feed end and the antenna grounding end with a feed point and a grounding point on the PCB;
and S4, arranging the antenna main body along the side edge of the wire control box, and arranging the antenna main body, the antenna feed end and the antenna grounding end on the side wall of the wire control box in a triangular shape.
2. The method of claim 1, wherein in step S2, the antenna body, the antenna feeding terminal and the antenna grounding terminal are made of conductive metal material.
3. A related device of a Bluetooth antenna comprises a box body (1) and is characterized in that a circular frame (2) is arranged on the side wall of the box body (1), a negative pressure fan (3) is fixedly connected to the inner wall of the circular frame (2), the negative pressure fan (3) is composed of a driving rod (31) and a plurality of impellers (32), a filtering frame (4) is arranged on the side wall, far away from the circular frame (2), of the box body (1), a ring groove (5) is arranged on the inner wall of the filtering frame (4), a magnetic ring (7) is slidably connected to the inner wall of the ring groove (5), the side wall of the magnetic ring (7) is fixedly connected with the inner wall of the ring groove (5) through a first spring (6), a filter screen (8) is fixedly connected to the inner wall of the magnetic ring (7), an L-shaped groove (9) is arranged at the upper end of the box body (1), and a first driving mechanism for driving, the utility model discloses a liquid supply box, including box body (1), bottom fixedly connected with fixed block (16) in circular frame (2), box body (1) inner wall inlays and is equipped with condenser pipe (15), cavity (17) have been seted up in fixed block (16), install in cavity (17) and carry out the liquid supply mechanism that supplies liquid to condenser pipe (15).
4. A related device of a Bluetooth antenna according to claim 3, wherein the first driving mechanism comprises a magnetic block (10) slidably connected to the horizontal inner wall of the L-shaped groove (9), a magnet (12) is slidably connected to the vertical inner wall of the L-shaped groove (9), the lower end of the magnet (12) is fixedly connected to the bottom inside the L-shaped groove (9) through a second spring (11), the magnetic block (10) and the magnet (12) are fixedly connected through a connecting rope (13), and one of the impellers (32) is made of a magnetic material.
5. A related device of a Bluetooth antenna according to claim 4, characterized in that a guide wheel (14) is rotatably connected to a corner of the L-shaped groove (9) through a rotating shaft, and the connecting rope (13) is attached to a side wall of the guide wheel (14).
6. A related device of Bluetooth antenna according to claim 3, characterized in that said liquid supply mechanism comprises a fixing plate (18) fixedly connected to the inner wall of the cavity (17), the side wall of the fixed plate (18) is hermetically and slidably connected with a vertical rod (20), the lower end of the vertical rod (20) is fixedly connected with a sliding plug (19), a liquid storage cavity (171) is formed between the lower end of the sliding plug (19) and the inner wall of the cavity (17), the liquid storage cavity (171) is filled with cooling liquid, an exchange cavity (172) is formed among the lower end of the fixing plate (18), the upper end of the sliding plug (19) and the inner wall of the cavity (17), the inner wall of the liquid storage cavity (171) is connected with one end of the condensing pipe (15) through a liquid inlet pipe (24), the exchange cavity (172) is fixedly connected with the other end of the condensing tube (15) through a liquid outlet tube (25), and a second driving mechanism for driving the sliding plug (19) to slide up and down on the inner wall of the cavity (17) is arranged on the driving rod (31).
7. A related device of a Bluetooth antenna according to claim 6, characterized in that the second driving mechanism comprises a disc (23) fixedly connected to the side wall of the driving rod (31), the side wall of the disc (23) is rotatably connected with a pull rod (22) through a rotating shaft, the lower end of the pull rod (22) penetrates through the upper end of the fixing block (16) and extends into the cavity (17), the upper end of the vertical rod (20) is fixedly connected with a sliding plate (21), the side wall of the sliding plate (21) is slidably connected with the inner wall of the cavity (17), and the lower end of the pull rod (22) is rotatably connected with the upper end of the sliding plate (21).
8. The apparatus associated with a bluetooth antenna of claim 6, wherein the coolant is one of an alcohol type coolant, a glycerin type coolant, and a glycol type coolant.
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| CN202010651252.6A CN111769353A (en) | 2020-07-08 | 2020-07-08 | Design method of Bluetooth antenna and related equipment |
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| CN113286470A (en) * | 2021-06-25 | 2021-08-20 | 四川农业大学 | Natural language recognition processing device and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113286470A (en) * | 2021-06-25 | 2021-08-20 | 四川农业大学 | Natural language recognition processing device and use method thereof |
| CN113286470B (en) * | 2021-06-25 | 2022-05-31 | 四川农业大学 | Natural language recognition processing device and use method thereof |
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Application publication date: 20201013 |