Power amplifier unit protective cover of directional antenna

Abstract

The utility model discloses a directional antenna power amplifier unit protection cover, the protection cover comprises a support rod, a top cover, a temperature sensor, a cooling fan and a temperature control module, one end of the support rod is connected with a bottom box, the other end of the support rod is connected with the top cover, the cooling fan is arranged on the top cover, the cooling fan is located right above the bottom box, and the temperature control module is electrically connected with the temperature sensor and the cooling fan. The temperature sensor and the temperature control module are arranged on the bottom box, the temperature sensor is used for detecting the temperature of the bottom box, and the temperature control module is used for controlling operation of the cooling fan according to the temperature in the bottom box. According to the application, the top cover is arranged right above the bottom box, and rainwater is prevented from entering the power amplifier unit through the top cover, so that the situation that the power amplifier unit is burnt due to short circuit is avoided. The temperature of the power amplifier unit is detected through the temperature sensor, and when the temperature of the power amplifier unit is too high, the power amplifier unit is cooled through the cooling fan, so that the situation that the power amplifier unit is burnt due to the too high temperature can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of protective covers, and in particular to a protective cover for a power amplifier unit of a directional antenna. Background Art

[0002] The UAV data link is a key system for information exchange between the UAV and the ground control station. Its main functions include: First, real-time transmission of flight control system and mission payload data to ensure that the UAV flies according to the scheduled route and performs the mission. Second, receive instructions from the ground station, adjust the flight status and perform specific tasks. Third, the data link must have functions such as anti-interference, encryption and adaptive adjustment of transmission rate to ensure the stability and security of communication. Fourth, through satellite navigation systems such as GPS, GLONASS, Beidou, etc., the UAV can determine its precise location in real time and send this location information to the ground control station through the data link. This function is crucial for flight path planning, navigation, mission execution and precise positioning of UAVs in complex environments. At the same time, the ground control station can also monitor and manage the UAV according to its real-time location to ensure that the UAV flies safely in legal airspace. The positioning function can also help the UAV automatically return to the preset starting point or safe area when it loses signal or encounters an emergency.

[0003] The performance of the UAV data link system largely determines the overall performance of the UAV system. It is the link between the UAV and the ground station. Problems in the remote control and telemetry system will directly affect the safety of the UAV equipment and the completion of the mission. The UAV has the ability to fly in bad weather conditions such as clouds, fog, and rain. During the take-off phase, the climbing route phase, the descent phase, the recovery phase, etc., when near the recovery field, it is generally remotely controlled through an omnidirectional antenna, and when working in the mission area, it is generally remotely controlled through a directional antenna. The directional antenna includes a power amplifier unit, which amplifies the received and sent signals. When in use, sometimes the weather conditions are good during take-off, and it starts to rain after take-off. Because the UAV and the directional antenna must be line of sight and the ground data terminal vehicle must be connected to other functional vehicles by wire, the UAV ground data terminal station vehicle cannot be moved when performing flight missions. Although it can fly under light rain weather conditions, the weather conditions change quickly after the UAV is launched and taken off, which may exceed the data link terminal's requirements for rain protection. Sometimes the power amplifier unit burns out due to heavy rain. Moreover, in hot weather, the temperature of the power amplifier unit is high when it is working, and failure to cool it down in time may easily cause the power amplifier unit to burn out. Utility Model Content

[0004] The main technical problem solved by the present application is to provide a protective cover for the power amplifier unit of a directional antenna, so as to solve the problem that the power amplifier unit is easily burned in bad weather.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is to provide a protective cover for the power amplifier unit of a directional antenna, wherein the power amplifier unit includes a bottom box, and the protective cover includes a support rod, a top cover, a temperature sensor, a cooling fan and a temperature control module. One end of the support rod is connected to the bottom box, and the other end is connected to the top cover. The cooling fan is arranged on the top cover, and the cooling fan is located directly above the bottom box. The temperature control module is electrically connected to the temperature sensor and the cooling fan, and the temperature sensor and the temperature control module are arranged on the bottom box. The temperature sensor is used to detect the temperature of the bottom box, and the temperature control module is used to control the operation of the cooling fan according to the temperature in the bottom box.

[0006] In some embodiments, two support rods are provided, and the two support rods are respectively located on two sides of the bottom box.

[0007] In some embodiments, the two support rods are arranged crosswise.

[0008] In some embodiments, a first connecting portion and a second connecting portion are provided on both sides of the base box, and the first connecting portion and the second connecting portion are arranged side by side. The top cover is centered on the vertical center line and is divided into a first protective portion and a second protective portion. The first end of a support rod is connected to the first connecting portion, and the second end is connected to the first protective portion; the first end of another support rod is connected to the second connecting portion, and the second end is connected to the second protective portion.

[0009] In some embodiments, the cross-section of the top cover is arc-shaped.

[0010] In some embodiments, the protective cover also includes a connecting piece, which is used to connect the top cover and the support rod. The connecting piece is clamped on the top cover, and the lower part of the connecting piece is connected to the support rod. The connecting piece can be locked and unlocked relative to the top cover to adjust the position of the connecting piece on the top cover.

[0011] In some embodiments, the connecting member is U-shaped, and two side edges of the connecting member are clamped on two vertical sides of the top cover.

[0012] In some embodiments, the temperature control module is arranged on the top of the base box, and the temperature control module includes a processing unit, a display unit, an alarm unit, and a driving unit. The processing unit is electrically connected to the display unit, the alarm unit, and the driving unit, respectively; the processing unit is also connected to the temperature sensor, and the driving unit is electrically connected to the cooling fan. The processing unit is used to control the display unit to display the temperature according to the temperature detected by the temperature sensor, control the alarm unit to sound an alarm according to the temperature threshold, and control the driving unit to drive the cooling fan to operate.

[0013] In some embodiments, the temperature control module also includes a control unit, which includes a first button, a second button, a third button and a fourth button. The first button and the second button are respectively used to set the increase or decrease of the temperature threshold, the third button is used to select the operating mode of the cooling fan, and the fourth button is used to select automatic or manual start of the cooling fan.

[0014] In some embodiments, the alarm unit includes a transistor and a speaker, one pin of the speaker is electrically connected to the transistor, and the other pin is grounded; the base of the transistor is connected to a resistor and then electrically connected to the processing unit, and the collector of the transistor is electrically connected to the speaker.

[0015] The beneficial effects of the present application are as follows: the present application discloses a protective cover for a power amplifier unit of a directional antenna. In the present application, a top cover is arranged directly above the bottom box, and the top cover prevents rain from entering the power amplifier unit, thereby preventing the power amplifier unit from burning due to a short circuit. The temperature of the power amplifier unit is detected by a temperature sensor. When the temperature of the power amplifier unit is too high, the power amplifier unit is cooled by a cooling fan, thereby preventing the power amplifier unit from burning due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram according to an embodiment of the present application;

[0017] Figure 2 is a front structural schematic diagram according to an embodiment of the present application;

[0018] Figure 3 is a schematic diagram of a side view structure according to an embodiment of the present application;

[0019] Figure 4 is a bottom-up structural schematic diagram according to an embodiment of the present application;

[0020] Figure 5 is a schematic diagram of a top view structure according to an embodiment of the present application;

[0021] Figure 6 is a circuit diagram of a processing unit according to an embodiment of the present application;

[0022] Figure 7 is a circuit diagram of a control unit according to an embodiment of the present application;

[0023] Figure 8 is a circuit diagram of a driving unit according to an embodiment of the present application;

[0024] Fig. 9 is a circuit diagram of a display unit according to an embodiment of the present application;

[0025] Fig.10 is a circuit diagram of a temperature sensor according to an embodiment of the present application;

[0026] Fig.11 is a circuit diagram of an alarm unit according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The preferred embodiments of the present application are provided in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0028] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0029] For the description of this application, the non-limiting Figure 1 The marks "front", "rear", "up", "down", "left" and "right" shown in the figure are used to facilitate understanding of the embodiment and are not intended to limit the present application. Among them, the front-to-back direction represents the longitudinal direction, the left-to-right direction represents the transverse direction, and the up-down direction represents the vertical direction.

[0030] Figure 1-Figure 11 An embodiment of a protective cover for a power amplifier unit of a directional antenna of the present application is shown, wherein the power amplifier unit comprises a bottom box 1, and the protective cover comprises a support rod 2, a top cover 3, a temperature sensor 4, a cooling fan 5 and a temperature control module 6. One end of the support rod 2 is connected to the bottom box 1, and the other end is connected to the top cover 3. The top cover 3 is located directly above the bottom box 1. The temperature control module 6 is electrically connected to the temperature sensor 4 and the cooling fan 5. The temperature sensor 4 and the temperature control module 6 are arranged on the bottom box 1, and the cooling fan 5 is arranged on the top cover 3. The temperature sensor 4 is used to detect the temperature of the bottom box 1, and the temperature control module 6 is used to control the operation of the cooling fan 5 according to the temperature in the bottom box 1.

[0031] In the present application, a top cover 3 is provided directly above the bottom box 1, and the top cover 3 prevents rainwater from entering the power amplifier unit, thereby preventing the power amplifier unit from burning due to a short circuit. The temperature of the power amplifier unit is detected by a temperature sensor 4. When the temperature of the power amplifier unit is too high, the heat dissipation fan 5 is used to dissipate the heat of the power amplifier unit, thereby preventing the power amplifier unit from burning due to excessive temperature.

[0032] The directional antenna usually includes a directional antenna surface, a feed source, a servo mechanism, a bracket and a power amplifier unit. The directional antenna surface rotates with the rotation of the servo mechanism. The top cover 3 is located on one side of the directional antenna surface and directly above the power amplifier unit. The height of the top cover 3 can be lower than the height of the bracket. The cross section of the top cover 3 can be square or arc-shaped, and the arc shape facilitates rainwater to flow to the side of the bottom box 1. The material of the top cover can be lightweight plastic, etc. The cooling fan 5 is fixed at the center of the top cover 3.

[0033] There may be multiple support rods 2, which are distributed in a triangular or quadrilateral shape to support the top cover 3. In some embodiments, Figure 1 As shown, two support rods 2 are provided, and the two support rods 2 are respectively located at the front and rear sides of the bottom box 1. The two support rods 2 can provide a good support for the top cover 3, ensuring the stability of the top cover 3 fixing.

[0034] The support rods 2 can be arranged vertically and in parallel. In some embodiments, Figure 1 As shown, the two support rods 2 are arranged crosswise. The front support rod 2 is inclined to the left, and the rear support rod 2 is inclined to the right. Through the cross arrangement, the left and right sides of the top cover 3 are supported respectively, so that the supporting force of the top cover 3 is balanced, and the stability of the top cover 3 is ensured.

[0035] In some embodiments, Figure 1 As shown, both sides of the bottom box 1 are provided with a first connection part 11 and a second connection part 12, the first connection part 11 and the second connection part 12 are arranged side by side, the top cover 3 is centered on the vertical center line and is divided into a first protection part 31 and a second protection part 32, the first end (lower end) of the front support rod 2 is connected to the first connection part 11, and the second end (upper end) is connected to the first protection part 31. The first end of the rear support rod 2 is connected to the second connection part 12, and the second end is connected to the second protection part 32.

[0036] The first end of the support rod 2 can be connected to the first connection part 11 or the second connection part 12. When the first connection part 11 on the front side is connected to the first end of the front support rod 2, the second connection part 12 on the rear side is connected to the first end of the rear support rod 2. When the second connection part 12 on the front side is connected to the first end of the front support rod 2, the first connection part 11 on the rear side is connected to the first end of the rear support rod 2. As a result, the support rods 2 on the front and rear sides are arranged crosswise when viewed from the front. As a result, the supporting force of the top cover 3 is balanced, ensuring the stability of the top cover 3 being fixed.

[0037] In some embodiments, Figure 1 As shown, the protective cover also includes a connector 21, which is used to connect the top cover 3 and the support rod 2. The connector 21 is U-shaped, and the two sides of the connector 21 are clamped on the vertical sides of the top cover 3. The lower side of the connector 21 is fixedly connected to the support rod 2, and the connector 21 can be locked and unlocked relative to the top cover 3 to adjust the position of the connector 21 on the top cover 3. The connector 21 can be penetrated by a bolt, and the inner end of the bolt abuts against the surface of the top cover 3. The bolt is tightened to lock the connector 21 on the top cover 3. When the bolt is loosened, the connector 21 can be moved, thereby adjusting the position of the connector 21 on the top cover 3, and then adjusting the intersection angle between the two support rods 2 on the front and rear sides, so as to flexibly adjust the support for the top cover 3 according to needs.

[0038] In some embodiments, Figure 6-Figure 11 As shown, the temperature control module 6 is arranged on the top of the bottom box 1, and the temperature sensor 4 can be integrated on the temperature control module 6. The temperature control module 6 includes a processing unit U1, a display unit LCD1, an alarm unit, and a drive unit U4. The processing unit U1 is electrically connected to the display unit LCD1, the alarm unit, and the drive unit U4 respectively; the processing unit U1 is also connected to the temperature sensor 4, and the drive unit U4 is electrically connected to the heat dissipation fan 5. The processing unit U1 is used to control the display unit LCD1 to display the temperature according to the temperature detected by the temperature sensor 4, control the alarm unit to alarm according to the temperature threshold, and control the drive unit U4 to drive the heat dissipation fan 5 to operate. For example, when the temperature threshold of the power amplifier unit reaches 50 degrees, the heat dissipation fan 5 automatically runs to cool down and protect the normal operation of the power amplifier unit. When the temperature threshold reaches 65 degrees, an alarm is issued. When the temperature threshold reaches 40 degrees, the heat dissipation fan 5 stops.

[0039] like Figure 6-Figure 11 As shown, the model of the processing unit U1 can be STM32F103R6, or other single-chip microcomputers can be selected. The processing unit U1 includes a plurality of control pins, wherein the control pin PA7 is electrically connected to the input pin ENA of the driving unit U4, the control pins PB0-PB2 are electrically connected to the input pin RS, the read pin RW and the enable pin E of the display unit LCD1, respectively, the control pins PB6-PB9 are electrically connected to the first key K1, the second key K2, the third key K3 and the fourth key K4, respectively, the control pins PB10 and PB11 are electrically connected to the first input pin IN1 and the second input pin IN2 of the driving unit U4, the control pin P12 is electrically connected to the alarm unit, the control pin PB15 is electrically connected to the digital pin DQ of the temperature sensor 4, and the control pins PC0-PC7 are electrically connected to the input pins D0-D7 of the display unit LCD1, respectively.

[0040] like Figure 6 and Figure 7 As shown, the control unit includes a first button K1, a second button K2, a third button K3 and a fourth button K4, and one pin of the first button K1, the second button K2, the third button K3 and the fourth button K4 is electrically connected to the processing unit U1 respectively, and the other pins are grounded. The first button K1 and the second button K2 are respectively used to set the increase or decrease of the temperature threshold, and the third button K3 is used to select the operation mode of the cooling fan 5. The operation mode can be that the cooling fan is always running, or it runs or stops according to the temperature reaching a certain threshold. The fourth button K4 is used to select automatic or manual start of the cooling fan 5. Automatic operation can be performed according to the above-mentioned operation mode, and manual operation can be performed by manually turning on the switch of the cooling fan 5. Those skilled in the art can set it according to conventional techniques.

[0041] like Figure 6 and Figure 8As shown, the output pins OUT1 and OUT2 of the driving unit U4 are electrically connected to the positive and negative electrodes of the heat dissipation fan 5, respectively, to drive the heat dissipation fan 5 to operate. The working voltage pin VCC and the logic voltage pin VS of the driving unit U4 are connected to the external power supply, the enable pin SENSA and the enable pin SENSB of the driving unit U4 are connected to the logic voltage pin VS, there are a first diode D1 and a second diode D2 between the enable pin SENSA and the logic voltage pin VS, the circuit between the first diode D1 and the second diode D2 is electrically connected to the output pin OUT1, there are a third diode D3 and a fourth diode D4 between the enable pin SENSB and the logic voltage pin VS, and the circuit between the third diode D3 and the fourth diode D4 is electrically connected to the output pin OUT2.

[0042] like Figure 6 and Fig. 9 As shown, the ground voltage pin VSS of the display unit LCD1 is grounded, the working voltage pin VDD is connected to the external power supply, and is also connected to a capacitor and then grounded, and the negative voltage pin VEE is connected to the external power supply, and is also connected to a resistor and then grounded.

[0043] like Figure 6 and Fig.10 As shown, the voltage pin VCC of the temperature sensor 4 is connected to an external power supply.

[0044] like Figure 6 and Fig.11 As shown, the alarm unit includes a transistor Q1 and a speaker S1, one pin of the speaker S1 is connected to the transistor Q1, and the other pin is grounded. The transistor Q1 is a PNP transistor Q1, the base of the transistor Q1 is connected to a resistor and then electrically connected to the processing unit U1, the collector of the transistor Q1 is connected to the speaker S1, and the emitter of the transistor Q1 is connected to an external power supply.

[0045] A battery can be placed in the bottom box 1 to power the temperature control module 6 and the cooling fan 5. The cooling fan 5 can also be powered by the mains or a mobile power supply on the vehicle. The temperature module 6 and the cooling fan 5 can be electrically connected through a conductive wire 7.

[0046] It can be seen that the present application discloses a protective cover for a power amplifier unit of a directional antenna. In the present application, a top cover is provided directly above the bottom box to prevent rainwater from entering the power amplifier unit, thereby preventing the power amplifier unit from burning due to a short circuit. The temperature of the power amplifier unit is detected by a temperature sensor. When the temperature of the power amplifier unit is too high, the power amplifier unit is cooled by a cooling fan, thereby preventing the power amplifier unit from burning due to excessive temperature.

[0047] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structural transformations made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A protective cover for a power amplifier unit of a directional antenna, wherein the power amplifier unit comprises a bottom box, characterized in that: The protective cover includes a support rod, a top cover, a temperature sensor, a heat dissipation fan and a temperature control module. One end of the support rod is connected to the bottom box, and the other end is connected to the top cover. The heat dissipation fan is arranged on the top cover. The heat dissipation fan is located directly above the bottom box. The temperature control module is electrically connected to the temperature sensor and the heat dissipation fan. The temperature sensor and the temperature control module are arranged on the bottom box. The temperature sensor is used to detect the temperature of the bottom box. The temperature control module is used to control the operation of the heat dissipation fan according to the temperature in the bottom box.

2. The protective cover for the power amplifier unit of the directional antenna according to claim 1, characterized in that: Two support rods are provided, and the two support rods are respectively located on two sides of the bottom box.

3. The protective cover for the power amplifier unit of the directional antenna according to claim 2, characterized in that: The two support rods are arranged crosswise.

4. The protective cover for the power amplifier unit of the directional antenna according to claim 3, characterized in that: A first connecting part and a second connecting part are provided on both sides of the bottom box, and the first connecting part and the second connecting part are arranged side by side. The top cover is centered on the vertical center line and is divided into a first protective part and a second protective part. The first end of one of the support rods is connected to the first connecting part, and the second end is connected to the first protective part; the first end of the other support rod is connected to the second connecting part, and the second end is connected to the second protective part.

5. The protective cover for the power amplifier unit of a directional antenna according to claim 1, characterized in that: The cross section of the top cover is arc-shaped.

6. The protective cover for the power amplifier unit of a directional antenna according to claim 1, characterized in that: The protective cover also includes a connecting piece, which is used to connect the top cover and the support rod. The connecting piece is clamped on the top cover, and the lower part of the connecting piece is connected to the support rod. The connecting piece can be locked and unlocked relative to the top cover to adjust the position of the connecting piece on the top cover.

7. The protective cover for the power amplifier unit of the directional antenna according to claim 6, characterized in that: The connecting piece is U-shaped, and two side edges of the connecting piece are clamped on two vertical sides of the top cover.

8. The protective cover for the power amplifier unit of a directional antenna according to claim 1, characterized in that: The temperature control module is arranged on the top of the base box, and the temperature control module includes a processing unit, a display unit, an alarm unit, and a driving unit. The processing unit is electrically connected to the display unit, the alarm unit, and the driving unit, respectively; the processing unit is also connected to the temperature sensor, and the driving unit is electrically connected to the cooling fan. The processing unit is used to control the display unit to display the temperature according to the temperature detected by the temperature sensor, control the alarm unit to sound an alarm according to the temperature threshold, and control the driving unit to drive the cooling fan to operate.

9. The protective cover for the power amplifier unit of the directional antenna according to claim 8, characterized in that: The temperature control module also includes a control unit, which includes a first button, a second button, a third button and a fourth button. The first button and the second button are respectively used to set the increase or decrease of the temperature threshold, the third button is used to select the operating mode of the cooling fan, and the fourth button is used to select automatic or manual start of the cooling fan.

10. The protective cover for the power amplifier unit of the directional antenna according to claim 8, characterized in that: The alarm unit includes a transistor and a speaker, one pin of the speaker is electrically connected to the transistor, and the other pin is grounded; the base of the transistor is connected to a resistor and then electrically connected to the processing unit, and the collector of the transistor is electrically connected to the speaker.

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