CN210719445U - Surface acoustic wave temperature measurement collector panel antenna installed in high-voltage switch cabinet - Google Patents
Surface acoustic wave temperature measurement collector panel antenna installed in high-voltage switch cabinet Download PDFInfo
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- CN210719445U CN210719445U CN201922296101.9U CN201922296101U CN210719445U CN 210719445 U CN210719445 U CN 210719445U CN 201922296101 U CN201922296101 U CN 201922296101U CN 210719445 U CN210719445 U CN 210719445U
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Abstract
The utility model discloses a surface acoustic wave temperature measurement collector panel antenna installed in a high-voltage switch cabinet, which is used for sending wireless excitation signals and receiving return signals to a surface acoustic wave temperature sensor; the supporting plate is used as a supporting main body and arranged between the top shell and the bottom shell; an upper substrate is arranged between the top shell and the supporting plate, and a lower substrate is arranged between the bottom shell and the supporting plate; the high-frequency feeder is characterized in that a connector is arranged on the supporting plate and used for being connected with an external collector through a high-frequency feeder, the inner end of the connector is connected with a feeder, an inner core in the middle of the feeder is welded with the upper substrate, and an outer metal shielding cover of the feeder is connected with the lower substrate. The utility model discloses an arbitrary position of inside wall about the circuit breaker room can be installed to the antenna, and distance sensor distance is near, and radio signal intensity is secure, and the signal is stable etc.
Description
Technical Field
The utility model belongs to the technical field of communication equipment, concretely relates to surface acoustic wave temperature measurement collector panel antenna of installation in high tension switchgear.
Background
In the long-term operation process of each device in the transformer substation, the contact of the switch, the bus connection and other parts generate heat due to aging or overlarge contact resistance, and the temperature of the heating parts cannot be monitored, so that accidents are finally caused.
An important potential hazard of grid safety of contacts and joints in grid equipment is that the current statistical results show that faults mainly occur in the following positions: the method comprises the following steps that firstly, moving and static contacts in a switch cabinet have faults, the switch cabinet is used as electric power equipment which is widely applied, the switch cabinet is important equipment in a power transmission and distribution system, and plays an important role in opening and closing an electric power circuit, protecting circuit faults and monitoring operation electric quantity data; the contact resistance of the switch equipment is easy to increase due to poor contact of moving and static contacts of the high-voltage circuit breaker and factors such as long-term heavy current, contact aging and the like, so that the switch equipment generates heat for a long time, the temperature rise of the contacts is too high, and even a high-voltage cabinet burning fault finally occurs; second, cable joint failure, along with the extension of operation time, loosening of the crimping joint, insulation aging, and partial discharge, high voltage leakage, etc., will cause heating and temperature rise, which will further worsen these conditions, which will further promote temperature rise, and as a result of this vicious circle, short circuit blasting, and even fire may be caused.
In order to solve the problem, the surface acoustic wave temperature measurement technology suitable for the environment of the high-voltage switch cabinet is adopted to realize temperature monitoring of the contact and other parts. There is cubical switchboard sound surface temperature measurement collector usually can pass through an antenna of feeder connection, adopts helical antenna or other columns, bar-shaped, T type antennas at present mostly, because its antenna principle structure causes, the antenna needs certain high space for the collector antenna is relatively thicker, is not suitable for installing in cubical switchboard circuit breaker room class space narrow and small region relatively. The circuit breaker contact is used as the maximum heating point of the switch cabinet, and a temperature sensor is arranged on the circuit breaker contact under the normal condition; the surface acoustic wave temperature measurement technology adopts a passive wireless mode, and the closer the collector antenna is to the sensor, the stronger the wireless radio frequency signal is, and the stronger the anti-interference capability is. Therefore, in order to improve the greater popularization and application of the surface acoustic wave temperature measurement technology in the high-voltage switch cabinet, a flat-plate-shaped collector antenna which is thinner in thickness, higher in gain and more convenient to install is required to be designed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a surface acoustic wave temperature measurement collector plate antenna of installation in high tension switchgear.
The utility model discloses the technical scheme who adopts does:
a surface acoustic wave temperature measurement collector panel antenna installed in a high-voltage switch cabinet is used for sending wireless excitation signals to a surface acoustic wave temperature sensor and receiving return signals; the supporting plate is used as a supporting main body and arranged between the top shell and the bottom shell;
an upper substrate is arranged between the top shell and the supporting plate, and a lower substrate is arranged between the bottom shell and the supporting plate;
the high-frequency feeder is characterized in that a connector is arranged on the supporting plate and used for being connected with an external collector through a high-frequency feeder, the inner end of the connector is connected with a feeder, an inner core in the middle of the feeder is welded with the upper substrate, and an outer metal shielding cover of the feeder is connected with the lower substrate.
The utility model relates to a panel antenna structure installs in current high tension switchgear for the excitation signal that temperature measurement collector sent to the sensor and receive the sensor return signal. Because the inner space is narrow and small among the present cubical switchboard, for guaranteeing the safe distance between the high-low pressure, it is limited to reserve the installation space of temperature measurement panel antenna, if adopt ordinary screw-tupe or cylindrical antenna, then the temperature measuring device condition is not possessed to very big a part of cubical switchboard, brings other potential safety hazards because influence safe insulation distance even.
In order to use surface acoustic wave temperature sensor in the cubical switchboard, the utility model provides a novel antenna, its structure is flat-plate-shaped, has less thickness, can set up in a flexible way. The structure of the device is divided into a functional module and a supporting protection module, wherein the supporting protection module comprises a top shell, a bottom shell and a supporting plate, and the three structures are made of insulating materials. The top shell and the bottom shell are mutually buckled, a cavity with a certain space is formed in the buckled inner part, and the top shell and the bottom shell are buckled on two side surfaces of the supporting plate simultaneously, so that two independent cavities are formed.
The functional module is composed of an upper substrate, a lower substrate and a connector, the upper substrate is used as a main transmitting structure, an inner core of a feeder line from the connector penetrates through the upper substrate and is welded on the surface of the upper substrate, the feeder line is also called as a cable line and plays a role in transmitting signals, and the antenna and the front-end system can receive and transmit signals through the feeder line. And the utility model discloses a connector is coaxial connector, so the feeder is coaxial cable, and coaxial cable commonly used comprises inner conductor, insulating layer, shielding layer and outer protective layer etc. and the inner conductor mainly plays signal conduction's effect in the cable, often adopts solid copper wire. In order to increase the mechanical strength of the large-diameter cable, copper-clad steel is also adopted as an inner conductor. The shielding layer is formed by weaving copper wires, has double functions of electric conduction and shielding, and the metal shielding end is grounded when the shielding layer is used.
The inner core is a signal transmission carrier, and the outer shielding layer needs to be grounded, so the lower substrate is used for grounding.
Furthermore, the upper substrate and the lower substrate are both of single-sided copper-clad plate structures, the copper-clad surfaces of the upper substrate and the lower substrate are arranged outwards, and etching holes are formed in the copper-clad surfaces of the upper substrate.
Furthermore, the etching holes comprise cross holes arranged in the middle, and a plurality of rectangular holes are arranged around the cross holes on the upper substrate at equal central angles; two opposite inner side surfaces of the cross-shaped holes extend towards one side of the rectangular hole on the same side to form a long groove.
The copper clad laminate is a plate-shaped material prepared by impregnating electronic glass fiber cloth or other reinforcing materials with resin, coating copper foil on one surface or two surfaces and hot-pressing. Various printed circuit boards with different forms and different functions are manufactured into different printed circuits by selectively carrying out the working procedures of processing, etching, drilling, copper plating and the like on a copper-clad plate.
The utility model provides a two base plates all adopt single face copper-clad plate structure, and wherein still are equipped with a plurality of etching holes as the upper substrate of main signal transmission structure. Since the patch antenna can be divided into various types including a slot patch antenna, the slot patch antenna is generally configured by three metal plates after removing a plastic case. The top layer is called a gap radiation layer, which is a metal plate and is provided with a plurality of orderly arranged cracks. The plurality of slits are of uniform size and correspond to the half-wave element radiating elements of the dipole plate antenna mentioned above, or each of the plurality of slits is a slot antenna element. And a slot antenna array consisting of the plurality of slots constitutes the panel antenna. Therefore, the slot patch antenna is also an array patch antenna.
Rectangular slots are common slots, and the +45 ° and-45 ° polarization directions are orthogonal to each other by a cross-shaped etching hole provided in the middle.
Furthermore, the upper substrate is also provided with a wire hole for the inner core of the feeder to pass through.
Because the copper-clad surface is arranged towards the outside during the installation of the upper substrate, and the connector serving as the feed port is arranged on the side surface of the supporting plate, the feeder needs to penetrate through the upper substrate from the inside of the supporting plate and then reach the copper-clad surface of the upper substrate for connection, and a wire hole for the inner core of the feeder to independently penetrate through needs to be formed in the copper-clad plate.
Furthermore, a blind hole for a feed line to penetrate is formed in the supporting plate.
Furthermore, top shell and drain pan are all fixed in the backup pad through a plurality of self tapping screws that are equipped with.
Furthermore, a plurality of mounting holes are formed in the bottom shell, a plurality of detachable supporting legs are arranged on the bottom shell, and the end portions of the supporting legs penetrate through the mounting holes and are connected with the supporting plate.
Furthermore, the supporting legs are of a magnetic adsorption structure, and the panel antenna is fixed on the inner metal wall of the cabinet through the supporting legs.
Further, the supporting leg comprises a support and a strong magnet arranged on the support.
Furthermore, the bottom of the supporting leg is coated with adhesive, and the panel antenna is fixed on the inner wall of the cabinet through the adhesive.
The utility model has the advantages that:
(1) the antenna of the utility model can be arranged at any position of the left and right side walls of the breaker chamber, the distance from the sensor is short, the wireless signal intensity is guaranteed, the signal is stable, and the like;
(2) the antenna of the utility model has a small thickness, generally not more than 2cm, can be installed in most existing switch cabinets, is easier to select an ideal installation position, and does not influence the insulation distance between high and low voltages of 12.5cm in the switch cabinet;
(3) the antenna of the utility model is designed into a flat plate shape, has no point bulge and the like, and can not cause potential safety hazards such as point discharge and the like when being installed in a high-voltage switch cabinet;
(4) because general cubical switchboard adopts iron galvanized sheet material, the utility model provides an antenna has set up a plurality of neodymium iron boron strong magnets, adsorbs the installation fixed mode of assisting with powerful glue again after the installation, guarantees can not take place to drop, avoids the emergence of safe affairs.
Drawings
FIG. 1 is a schematic axial view A of the overall assembled top surface of the present invention as the main viewing angle;
FIG. 2 is a schematic axial view B of the overall assembled bottom of the present invention as the main viewing angle;
FIG. 3 is a perspective view of the utility model after the whole assembly;
fig. 4 is an exploded view a of the present invention with the top surface as the main viewing angle and with the whole split;
fig. 5 is an exploded view B of the present invention with the bottom surface as the main viewing angle;
fig. 6 is a schematic axial view of an upper base plate according to the present invention;
fig. 7 is a schematic view a of the middle leg of the present invention;
fig. 8 is a schematic view B of the support leg of the present invention;
fig. 9 is a partially enlarged schematic view of a in fig. 1 according to the present invention.
In the figure: 1-top shell, 2-bottom shell, 3-support plate, 4-upper self-tapping screw, 5-lower self-tapping screw, 6-leg, 61-support, 61.1-bolt, 61.2-annular flange, 61.3-opening, 62-strong magnet, 7-blind hole, 8-upper substrate, 81-cross hole, 82-rectangular hole, 83-wire hole, 9-lower substrate, 10-annular convex ring, 11-connector.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1:
the embodiment is a flat antenna structure, which is arranged in the existing high-voltage switch cabinet and used for transmitting an excitation signal to a sensor by a temperature measurement collector and receiving a return signal of the sensor. Because the inner space is narrow and small among the present cubical switchboard, for guaranteeing the safe distance between the high-low pressure, it is limited to reserve the installation space for temperature measurement panel antenna, if adopt ordinary screw-tupe or cylindrical antenna, then very big partial cubical switchboard does not possess the installation temperature measuring device condition, even if the installation of reluctant also brings other potential safety hazards because of influencing safe insulating distance. In order to use the surface acoustic wave temperature measurement sensor in the switch cabinet, the embodiment provides a novel antenna, and the structure of the novel antenna is flat, has smaller thickness and can be flexibly arranged. The surface acoustic wave temperature measurement collector panel antenna comprises a top shell 1 and a bottom shell 2 which are clamped with each other, wherein a supporting plate 3 used as a supporting main body is arranged between the top shell 1 and the bottom shell 2; an upper substrate 8 is arranged between the top shell 1 and the supporting plate 3, and a lower substrate 9 is arranged between the bottom shell 2 and the supporting plate 3.
The supporting plate 3 is provided with a connector 11 which is connected with an external temperature measuring sensor through a signal, the inner end of the connector 11 is connected with a feeder line, an inner core in the middle of the feeder line is welded with the upper substrate 8, and an outer metal shielding cover of the feeder line is connected with the lower substrate 9.
The structure of the device is divided into a functional module and a supporting protection module, wherein the supporting protection module comprises a top shell 1, a bottom shell 2 and a supporting plate 3, and the three structures are made of insulating materials. The top shell 1 and the bottom shell 2 are mutually buckled, and a cavity with a certain space is formed in the buckled inner part, and the top shell 1 and the bottom shell 2 are buckled on two side surfaces of the supporting plate 3 at the same time, so that two independent cavities are formed. The functional modules are an upper substrate 8, a lower substrate 9 and a connector 11, the upper substrate 8 is used as a main transmitting structure, an inner core of a feeder line from the connector 11 penetrates through the upper substrate 8 and is welded on the surface of the upper substrate 8, the feeder line is also called a cable line and plays a role in transmitting signals, and the signal receiving and transmitting of an antenna and a front-end system are completed through the feeder line.
The connector 11 of this embodiment is a coaxial connector 11, so the feeder is a coaxial cable, and the commonly used coaxial cable is composed of an inner conductor, an insulating layer, a shielding layer, an outer protective layer, and the like, where the inner conductor mainly plays a role of signal conduction in the cable and is usually a solid copper wire. In order to increase the mechanical strength of the large-diameter cable, copper-clad steel is also adopted as an inner conductor. The shielding layer is formed by weaving copper wires, has double functions of electric conduction and shielding, and the metal shielding end is grounded when the shielding layer is used.
The inner core is a signal transmission carrier, and the outer shielding layer needs to be grounded, so the lower substrate 9 is used for grounding.
As shown in fig. 7 and 8, it can be seen that, in the present embodiment, an annular convex ring 10 is provided at the middle of the outer side of the supporting plate 3, and the top shell 1 and the bottom shell 2 have the same shape and size, and when the top shell 1 and the bottom shell 2 are fastened on the supporting plate 3, the edges of the top shell 1 and the bottom shell 2 contact with the annular convex ring 10, and the two insulating shells are fixed on the supporting plate 3 by automatic screws, and the annular convex ring 10 is provided to improve the sealing connection effect.
As shown in fig. 1 and 2, the outer casing structure in this embodiment is a full-enclosure structure, that is, when the top casing 1 and the bottom casing 2 are covered on the supporting plate 3, the entire outer surface is a plastic casing structure, and the upper substrate 8 and the lower substrate 9 are covered inside.
The upper substrate 8 and the lower substrate 9 are both single-sided copper-clad plate structures, the copper-clad surfaces of the two substrates face outwards, and etching holes are formed in the copper-clad surface of the upper substrate 8.
The etching holes include a cross hole 81 provided in the middle, and a plurality of rectangular holes 82 are provided around the cross hole 81 at the equal central angle of the upper substrate 8; two opposite inner sides of the cross-shaped holes 81 extend towards one side of the rectangular hole 82 on the same side to form a long groove. The copper clad laminate is a plate-shaped material prepared by impregnating electronic glass fiber cloth or other reinforcing materials with resin, coating copper foil on one surface or two surfaces and hot-pressing.
Various printed circuit boards with different forms and different functions are manufactured into different printed circuits by selectively carrying out the working procedures of processing, etching, drilling, copper plating and the like on a copper-clad plate. In this embodiment, both substrates are single-sided copper-clad plate structures, and the upper substrate 8 as the main signal transmitting structure is further provided with a plurality of etching holes. Since the patch antenna can be divided into various types including a slot patch antenna, the slot patch antenna is generally configured by three metal plates after removing a plastic case.
The top layer is called a gap radiation layer, which is a metal plate and is provided with a plurality of orderly arranged cracks. The plurality of slits are of uniform size and correspond to the half-wave element radiating elements of the dipole plate antenna mentioned above, or each of the plurality of slits is a slot antenna element. And a slot antenna array consisting of the plurality of slots constitutes the panel antenna. Therefore, the slot patch antenna is also an array patch antenna. Rectangular slots are common slots, and the +45 ° and-45 ° polarization directions are orthogonal to each other by a cross-shaped etching hole provided in the middle.
And a wire hole 83 for passing the core of the feeder is formed in the upper substrate 8. Because the copper-clad surface is arranged towards the outside when the upper substrate 8 is installed, and the connector 11 serving as the feed port is arranged on the side surface of the support plate 3, the feeder needs to penetrate through the upper substrate 8 from the inside of the support plate 3 and then reach the copper-clad surface of the upper substrate 8 for connection, and a wire hole 83 for the inner core of the feeder to independently penetrate through needs to be formed in the copper-clad plate.
The supporting plate 3 is internally provided with a blind hole 7 for a feeder line to penetrate. The top shell 1 and the bottom shell 2 are fixed on the supporting plate 3 through a plurality of self-tapping screws. A plurality of mounting holes are formed in the bottom shell 2, a plurality of detachable supporting legs 6 are arranged on the bottom shell 2, and the end portions of the supporting legs 6 penetrate through the mounting holes and are connected with the supporting plate 3.
Wherein all be equipped with a plurality of fixed orificess on top shell 1 and drain pan 2 to all be equipped with a plurality of screws in two sides of backup pad 3, through the last self tapping screw 4 fixed top shell 1 that is equipped with, and through the fixed drain pan 2 of the lower self tapping screw 5 that is equipped with.
As shown in fig. 7, the leg 6 is a magnetic adsorption structure, and the plate antenna is fixed on the inner metal wall of the cabinet through the leg 6. The leg 6 includes a seat 61 and a strong magnet 62 provided on the seat 61.
As shown in fig. 7 and 8, an embodiment of a support 61 is shown, that is, a strong magnet 62 is attached to the inner wall of the cabinet, which is not only convenient for fixing, but also can flexibly adjust the setting position to adapt to the installation of the sensor.
As can be seen in the figure, the upper end of the support 61 is provided with a bolt 61.1, the diameter of the lower end of the support 61 is increased to form a cylindrical structure, the bottom of the cylindrical structure is inwards sunken to form a mounting groove, and the strong magnet 62 is arranged in the mounting groove. For the convenience of disassembly and assembly, an annular flange 61.2 for blocking is arranged on the inner edge of the opening 61.3 at the bottom of the mounting groove, but the annular flange 61.2 is provided with two openings 61.3, so that a tool can be inserted into the opening 61.3 to pry the strong magnet 62, thereby facilitating replacement. Meanwhile, the bolt 61.1 at the upper end of the support 61 is inserted from the bottom of the support 61 for fixing, and if the bolt needs to be replaced, the strong magnet 62 is only required to be taken down and then screwed down by using an inner hexagonal screwdriver.
Meanwhile, the bottoms of the supporting legs 6 can be coated with adhesive independently, and the panel antenna is fixed on the inner wall of the cabinet through the adhesive. The strong magnet 62 can also be removed and replaced by glue, if the mounting groove is large, the rubber block or the foam block is filled inwards, and then the glue is injected into the mounting groove.
The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.
Claims (10)
1. A surface acoustic wave temperature measurement collector panel antenna installed in a high-voltage switch cabinet is used for sending a wireless excitation signal to a surface acoustic wave temperature sensor and receiving a return signal, and then temperature information is analyzed by a collector; the method is characterized in that: the device comprises a top shell (1) and a bottom shell (2) which are clamped with each other, wherein a supporting plate (3) used as a supporting main body is arranged between the top shell (1) and the bottom shell (2);
an upper substrate (8) is arranged between the top shell (1) and the supporting plate (3), and a lower substrate (9) is arranged between the bottom shell (2) and the supporting plate (3);
the temperature measurement collector is characterized in that a connector (11) connected with an external temperature measurement collector through a high-frequency feeder is arranged on the supporting plate (3), the inner end of the connector (11) is connected with a feeder, an inner core in the middle of the feeder is welded with the upper substrate (8), and an outer metal shielding cover of the feeder is connected with the lower substrate (9).
2. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 1, characterized in that: the upper substrate (8) and the lower substrate (9) are both of single-sided copper-clad plate structures, the copper-clad surfaces of the two substrates are arranged outwards, and etching holes are formed in the copper-clad surfaces of the upper substrate (8).
3. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 2, characterized in that: the etching holes comprise cross holes (81) arranged in the middle, and a plurality of rectangular holes (82) are arranged around the cross holes (81) at equal central angles on the upper substrate (8); two opposite inner sides of the cross holes (81) face one side of the rectangular hole (82) on the same side and extend to form a long groove.
4. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 3, wherein: and the upper substrate (8) is also provided with a wire hole (83) for the inner core of the feeder to pass through.
5. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 4, wherein: and a blind hole (7) for a feeder line to penetrate is formed in the supporting plate (3).
6. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to any one of claims 1 to 5, characterized in that: the top shell (1) and the bottom shell (2) are fixed on the supporting plate (3) through a plurality of self-tapping screws.
7. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to any one of claims 1 to 4, characterized in that: the improved structure is characterized in that a plurality of mounting holes (21) are formed in the bottom shell (2), a plurality of detachable supporting legs (6) are arranged on the bottom shell (2), and the end portions of the supporting legs (6) penetrate through the mounting holes (21) and are connected with the supporting plate (3).
8. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 7, wherein: the supporting legs (6) are of a magnetic adsorption structure, and the panel antenna is fixed on the inner metal wall of the cabinet through the supporting legs (6).
9. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 8, wherein: the supporting leg (6) comprises a support (61) and a strong magnet (62) arranged on the support (61).
10. The surface acoustic wave temperature measurement collector panel antenna installed in the high-voltage switch cabinet according to claim 7, wherein: the bottom of the supporting leg (6) is coated with adhesive, and the panel antenna is fixed on the inner wall of the cabinet through the adhesive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201922296101.9U CN210719445U (en) | 2019-12-19 | 2019-12-19 | Surface acoustic wave temperature measurement collector panel antenna installed in high-voltage switch cabinet |
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CN201922296101.9U CN210719445U (en) | 2019-12-19 | 2019-12-19 | Surface acoustic wave temperature measurement collector panel antenna installed in high-voltage switch cabinet |
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CN210719445U true CN210719445U (en) | 2020-06-09 |
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CN201922296101.9U Active CN210719445U (en) | 2019-12-19 | 2019-12-19 | Surface acoustic wave temperature measurement collector panel antenna installed in high-voltage switch cabinet |
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