阅读说明：本技术 功放装置及通信设备 (Power amplifier device and communication equipment ) 是由 朱金雄 樊奇彦 曾晓松 刘江涛 于 2019-11-04 设计创作，主要内容包括：本发明涉及功放装置及通信设备。功放装置包括功率放大模组、烟雾告警电路和抽气模组。功率放大模组包括射频链路上的若干器件腔壳和辅助电路对应的辅助腔壳,各器件腔壳的隔圈上分别开设通孔并连通至辅助腔壳内,辅助腔壳上开设有抽风孔。烟雾告警电路设置在辅助腔壳内,用于监测到任一器件腔壳内产生烟雾时进行烟雾告警。抽气模组设置在辅助腔壳上,用于通过辅助腔壳上的抽风孔,将各器件腔壳内的气流引导至烟雾告警电路并排出辅助腔壳外。通过上述功率放大模组的各腔壳上开设通孔,并配套抽气模组和烟雾告警电路的设计,可以达到大幅降低功放装置的告警成本。(The invention relates to a power amplifier device and communication equipment. The power amplifier device comprises a power amplification module, a smoke alarm circuit and an air pumping module. The power amplification module comprises a plurality of device cavity shells on the radio frequency link and auxiliary cavity shells corresponding to the auxiliary circuits, through holes are respectively formed in space rings of the device cavity shells and communicated into the auxiliary cavity shells, and air suction holes are formed in the auxiliary cavity shells. The smoke alarm circuit is arranged in the auxiliary cavity shell and used for carrying out smoke alarm when smoke generated in any device cavity shell is monitored. The air exhaust module is arranged on the auxiliary cavity shell and used for guiding air flow in the cavity shell of each device to the smoke alarm circuit and discharging the air flow out of the auxiliary cavity shell through the air exhaust hole in the auxiliary cavity shell. Through the design that through holes are formed in the cavity shells of the power amplification module and the air extraction module and the smoke alarm circuit are matched, the alarm cost of the power amplifier device can be greatly reduced.)

1. A power amplifier device, comprising:

the power amplification module comprises a plurality of device cavity shells on a radio frequency link and auxiliary cavity shells corresponding to an auxiliary circuit, wherein a through hole is formed in a space ring of each device cavity shell and communicated into the auxiliary cavity shells, and an air exhaust hole is formed in each auxiliary cavity shell;

the smoke alarm circuit is arranged in the auxiliary cavity shell and used for carrying out smoke alarm when smoke generated in any device cavity shell is monitored;

and the air exhaust module is arranged on the auxiliary cavity shell and used for guiding the air flow in each device cavity shell to the smoke alarm circuit and exhausting the air flow out of the auxiliary cavity shell through the air exhaust hole in the auxiliary cavity shell.

2. The power amplifier device according to claim 1, wherein the smoke alarm circuit comprises a smoke monitoring chip and an on-site alarm, and the smoke monitoring chip is electrically connected with the on-site alarm;

and the smoke monitoring chip is used for driving the field alarm to alarm smoke and outputting an alarm signal to the equipment main control module when monitoring that smoke is generated in any device cavity shell.

3. The power amplifier device according to claim 1 or 2, further comprising an alarm power supply electrically connected to the smoke alarm circuit for independently supplying power to the smoke alarm circuit.

4. The power amplifier device of claim 3, wherein the alarm power source is a rechargeable battery, and the rechargeable battery is electrically connected to the device power source through a fuse.

5. The power amplifier device according to claim 3, wherein the pumping module is a fan, and the fan is electrically connected to the alarm power supply.

6. The power amplifier device of claim 5, wherein the fan is installed inside the auxiliary cavity housing or outside the auxiliary cavity housing, and is disposed in a position matching with the exhaust hole of the auxiliary cavity housing.

7. A communication device comprising the power amplifier apparatus of any one of claims 1 to 6.

8. The communication device according to claim 7, further comprising a device main control module, wherein the smoke alarm circuit of the power amplifier device comprises a smoke monitoring chip and a field alarm, and the smoke monitoring chip is electrically connected to the field alarm and the device main control module respectively;

and the smoke monitoring chip is used for driving the field alarm to alarm smoke and outputting an alarm signal to the equipment main control module when monitoring that smoke is generated in any device cavity shell.

9. The communication device according to claim 8, further comprising a device power supply source, wherein the power amplifier further comprises an alarm power source, and the device power supply source is electrically connected to the radio frequency device of the power amplifier module and the alarm power source through a fuse.

10. The communication device according to claim 8 or 9, wherein the communication device is any one of a repeater device, a radio remote device, a track power amplifier device, an integrated power amplifier and a receiver.

Technical Field

The invention relates to the technical field of communication, in particular to a power amplifier device and communication equipment.

Background

With the continuous development of communication technology, a power amplifier module is an important component in a radio frequency link, and the importance of power amplifier alarm in the design of a communication system is more and more prominent, and the use is more and more extensive. The power amplifier alarm is an alarm for judging whether the power amplifier module is damaged or not or for judging other abnormal conditions and the like. The traditional power amplifier warning method is mainly characterized in that whether a power amplifier module is damaged or not is judged by detecting performance indexes of output power, input power, gain, voltage, current, temperature or standing wave and the like of the power amplifier module, and warning is carried out if the power amplifier module is damaged. However. In the process of implementing the invention, the inventor finds that the traditional power amplifier alarm mode still has the problem of higher alarm cost.

Disclosure of Invention

Therefore, it is necessary to provide a power amplifier device and a communication device for solving the problems of the conventional power amplifier alarm method.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

in one aspect, an embodiment of the present invention provides a power amplifier device, including:

the power amplification module comprises a plurality of device cavity shells on a radio frequency link and auxiliary cavity shells corresponding to an auxiliary circuit, wherein a space ring of each device cavity shell is provided with a through hole and communicated into the auxiliary cavity shells, and the auxiliary cavity shells are provided with air exhaust holes;

the smoke alarm circuit is arranged in the auxiliary cavity shell and used for carrying out smoke alarm when smoke generated in any device cavity shell is monitored;

and the air exhaust module is arranged on the auxiliary cavity shell and used for guiding the air flow in each device cavity shell to the smoke alarm circuit and discharging the air flow out of the auxiliary cavity shell through the air exhaust hole in the auxiliary cavity shell.

In one embodiment, the smoke alarm circuit comprises a smoke monitoring chip and an on-site alarm, wherein the smoke monitoring chip is electrically connected with the on-site alarm;

and the smoke monitoring chip is used for driving the field alarm to alarm smoke and outputting an alarm signal to the equipment main control module when monitoring smoke generated in any device cavity shell.

In one embodiment, the power amplifier further includes an alarm power source electrically connected to the smoke alarm circuit for independently supplying power to the smoke alarm circuit.

In one embodiment, the alarm power source is a rechargeable battery, and the rechargeable battery is electrically connected to the device power source through a fuse.

In one embodiment, the air pumping module is a fan, and the fan is electrically connected to the alarm power supply.

In one embodiment, the fan is arranged in the auxiliary cavity shell or outside the auxiliary cavity shell and is matched with the position of the air exhaust hole in the auxiliary cavity shell.

On the other hand, the communication equipment comprises the power amplifier device.

In one embodiment, the communication device further includes a device main control module, the smoke alarm circuit of the power amplifier device includes a smoke monitoring chip and a field alarm, and the smoke monitoring chip is electrically connected to the field alarm and the device main control module respectively;

and the smoke monitoring chip is used for driving the field alarm to alarm smoke and outputting an alarm signal to the equipment main control module when monitoring smoke generated in any device cavity shell.

In one embodiment, the communication device further includes a device power supply source, the power amplifier further includes an alarm power source, and the device power supply source is electrically connected to the radio frequency device of the power amplifier module and the alarm power source through fuses.

In one embodiment, the communication device is any one of a repeater device, a radio remote device, a track power amplifier device, an integrated power amplifier and a receiver.

One of the above technical solutions has the following advantages and beneficial effects:

according to the power amplifier device and the communication equipment, through holes are formed in the cavity shells of the power amplification module, and the air pumping module and the smoke alarm circuit are matched, so that the smoke alarm circuit is adopted to detect the smoke condition of airflow in the cavity shells of the devices on the power amplification module. When the radio frequency link device in any device cavity shell, such as a power amplifier or an isolator, is damaged to generate smoke, the smoke is guided to the smoke alarm circuit in the auxiliary cavity shell by the air pumping module along with the airflow. The smoke alarm circuit can automatically alarm smoke when monitoring smoke, so that the setting number of power amplifier alarm devices can be greatly reduced, and reliable power amplifier alarm can be realized; meanwhile, the air exhaust module exhausts the air flow out of the auxiliary cavity shell through the air exhaust hole in the auxiliary cavity shell, and can also cool the radio frequency link devices in the cavity shells of the devices, so that the ventilation and cooling can be performed on other normal radio frequency link devices, and the reliability of the whole power amplifier is improved to reduce the maintenance cost. Therefore, through the through holes formed in the cavity shells of the power amplification module and the design of the matched air pumping module and the smoke alarm circuit, the alarm cost of the power amplifier device can be greatly reduced.

Drawings

Fig. 1 is a schematic layout diagram of one conventional device of a power amplifier module;

fig. 2 is a schematic structural diagram of one conventional rf link of the power amplifier module;

fig. 3 is a schematic diagram of a layout structure of a device of the power amplifier device in one embodiment;

fig. 4 is a schematic circuit diagram of a power amplifier device according to an embodiment;

fig. 5 is a schematic circuit diagram of a power amplifier device in another embodiment;

FIG. 6 is a schematic circuit diagram of a communication apparatus according to an embodiment;

fig. 7 is a schematic circuit configuration diagram of a communication device in another embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It is to be noted that, 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 herein in the description of the invention 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.

As shown in fig. 1, a power amplifier module is a device layout method commonly used in the industry, and generally, the power amplifier module mainly includes a radio frequency link and an auxiliary circuit. The radio frequency link part comprises pre-pushing stages, final stages and other power amplifiers, isolators and the like, and two or more pre-pushing stages can be used for cascading according to the requirement of the gain of the power amplifier module, wherein the higher the gain requirement is. The auxiliary circuit has any one or more of a power conversion circuit, a monitoring control circuit, a temperature detection circuit, a power detection circuit and a power amplifier alarm circuit according to different functions, wherein the power amplifier alarm circuit is a grid voltage alarm, a temperature alarm, a gain alarm, a current alarm, a standing wave alarm or an output power alarm and the like. And the auxiliary circuits with different functions can be selected for the power amplifier module according to the use condition. Fig. 2 shows a block diagram of a radio frequency link of one common power amplifier module.

In the device layout mode of the power amplifier module, the pre-push stage, the push stage and the final stage are all power amplifier tubes, so that the power amplifier module has higher gain. In order to ensure reliable operation of the rf link, it is necessary to structurally isolate the power amplifier tubes in different cavities to prevent rf signals from interfering with each other and causing self-excitation. The sub-cavities of each device unit and the auxiliary circuit of the radio frequency link are sealed and isolated by using a sealed metal conductive cavity material.

Referring to fig. 3, in order to solve the problem of high alarm cost in the conventional power amplifier alarm method, in an embodiment, a power amplifier device 100 is provided, which includes a power amplifier module 12, a smoke alarm circuit 14, and an air pump module 16. The power amplification module 12 includes a plurality of device cavity shells on the radio frequency link and an auxiliary cavity shell corresponding to the auxiliary circuit. The space ring of each device cavity shell is respectively provided with a through hole and communicated to the inside of the auxiliary cavity shell. The auxiliary cavity shell is provided with an air exhaust hole. A smoke alarm circuit 14 is provided in the auxiliary chamber housing for providing a smoke alarm when smoke is detected in any of the device chamber housings. The air extraction module 16 is arranged on the auxiliary cavity shell and used for guiding the air flow in each device cavity shell to the smoke alarm circuit 14 through the air extraction hole on the auxiliary cavity shell and discharging the air flow out of the auxiliary cavity shell.

It can be understood that the power amplification module 12 is an existing power amplifier module in the art, and includes a radio frequency link portion and an auxiliary circuit portion, and the number and types of power amplifier devices and isolators included in the radio frequency link portion may be determined by a signal processing function required in an actual application scenario. The specific circuit type of the auxiliary circuit portion may be determined by the function required in the practical application scenario, and is not limited in this specification. The devices of the radio frequency link part are separated by corresponding device cavity shells, the auxiliary circuit part is separated by corresponding auxiliary cavity shells, the devices are respectively positioned in a cavity formed by surrounding the corresponding cavity shells, and space rings are arranged between the cavity shells for structural connection.

Through holes are formed in the space ring of each device cavity shell, and besides the through holes are also formed in the space ring of the auxiliary cavity shell, air suction holes are formed in the space ring of the auxiliary cavity shell so as to achieve communication between different cavities. The size and shape of the through holes can be determined according to the size of the power amplification module 12 and the isolation requirement of mutual interference of radio frequency signals among devices, as long as the air flow communication among different cavities can be ensured and the isolation index required and guaranteed by practical application can be met. The number of the through holes formed in the space ring of any cavity shell can be two, or more than two, and can be determined according to the requirements of guiding and discharging airflow in the auxiliary cavity shell. The smoke alarm circuit 14 is a circuit module or a sensor chip or the like that triggers an alarm based on smoke detection.

The smoke alarm circuit 14 may be mounted in the auxiliary chamber housing, for example on a PCB substrate on which the auxiliary circuit is located, by soldering, gluing or screwing. When the smoke alarm circuit 14 performs smoke alarm, it may perform local alarm (power amplifier alarm at module level) in an acousto-optic alarm manner, or may output an alarm signal to the outside so that an external alarm device or a main control unit may perform power amplifier alarm at device level, or perform remote alarm at a different location to notify other device terminals. The smoke alarm circuit 14 may be connected to the same device power supply as the power amplification module 12 to provide power during operation. The smoke alarm circuit 14 may also be independently powered by a specially-configured independent power supply, and the specific power supply mode may be determined according to the actual application scenario of the power amplifier device 100.

The air extracting module 16 is a device or an electrical device having an air extracting or exhausting function in the field, and an air extracting part of the air extracting module 16 is arranged in a position matching with an air extracting hole on the auxiliary cavity shell so as to extract air flow in the auxiliary cavity shell out of the cavity, so that other air communicated to the interior of each device cavity shell of the auxiliary cavity shell flows into the auxiliary cavity shell and is exhausted from the air extracting hole after flowing through the smoke alarm circuit 14. The specific installation position of the air extraction module 16 on the auxiliary cavity shell can be determined according to the structural size of the air extraction module 16, the structural shape of the air extraction part and the like, for example, the air extraction module is installed on the inner surface of the auxiliary cavity shell, and the air extraction part of the air extraction module 16 corresponds to the position of the air extraction hole; or for example, the air exhaust part of the air exhaust module 16 corresponds to the position of the air exhaust hole; or for example, the air-extracting module 16 is installed in the air-extracting hole of the auxiliary cavity shell, and is connected and fixed with the cavity cross section around the air-extracting hole.

Specifically, holes are formed in the space rings of the device cavity shells and the auxiliary cavity shell of the power amplification module 12, so that the device cavity shells are communicated with the auxiliary cavity shell, and when air is extracted from the air extraction holes in the auxiliary cavity shell through the air extraction module 16, air in the auxiliary cavity shell is exhausted out of the auxiliary cavity shell through the air extraction holes. The air pressure in the auxiliary cavity shell is reduced along with the air in the cavity extracted by the air extraction module 16, so that the air in each communicated device cavity shell automatically flows into the auxiliary cavity shell under the action of the air pressure difference. When the power amplifier or the isolator in any device cavity shell is damaged to generate smoke, the generated smoke is guided into the auxiliary cavity shell along with the airflow by the air pumping module 16 and is exhausted out of the auxiliary cavity shell after flowing through the smoke alarm circuit 14. When the smoke alarm circuit 14 detects that smoke is contained in the airflow, the smoke alarm is automatically carried out, namely, the power amplifier alarm is realized; meanwhile, the air flow can ventilate the cavity of each device cavity shell in the process of being discharged to the outside of the auxiliary cavity shell, so that heat generated by the device in the device cavity shell due to damage of the device is removed, the probability of over-temperature ignition of the cavity with the damage of the device is reduced, the temperature of other cavities without the damage of the device is prevented from suddenly rising, and the purpose of protecting the device is achieved.

In the power amplifier device 100, through holes are formed in each cavity shell of the power amplification module 12, and the air pumping module 16 and the smoke alarm circuit 14 are matched, so that the smoke alarm circuit 14 is used for detecting the smoke condition of the airflow in each device cavity shell of the power amplification module 12. When smoke is generated due to damage of any radio frequency link device in the device cavity shell, such as a power amplifier or an isolator, the smoke is guided to the smoke alarm circuit 14 in the auxiliary cavity shell by the air pumping module 16 along with the air flow. The smoke alarm circuit 14 can automatically alarm smoke when monitoring smoke, so that the setting number of power amplifier alarm devices can be greatly reduced, and reliable power amplifier alarm can be realized; meanwhile, the air exhaust module 16 exhausts the air flow out of the auxiliary cavity shell through the air exhaust hole on the auxiliary cavity shell, and can also cool the radio frequency link device in each device cavity shell, so that the ventilation and cooling can be performed on other normal radio frequency link devices, and the reliability of the whole power amplifier device 100 is improved to reduce the maintenance cost. Therefore, through the design that through holes are formed in the cavity shells of the power amplification module 12 and the air extraction module 16 and the smoke alarm circuit 14 are matched, the alarm cost of the power amplifier device 100 can be greatly reduced.

Referring to fig. 4, in one embodiment, the smoke alarm circuit 14 includes a smoke monitoring chip 142 and a field alarm 144. The smoke monitoring chip 142 is electrically connected to a field alarm 144. The smoke monitoring chip 142 is used for driving the field alarm 144 to alarm smoke and outputting an alarm signal to the equipment main control module when detecting that smoke is generated in any device cavity shell.

It is understood that the smoke monitoring chip 142 is various types of smoke alarm chips conventional in the art, and the specific model is not limited in this specification. The field alarm 144 is a device having an alarm function such as an audio alarm, an optical alarm, an audible and visual alarm, or a vibration alarm, and the specific type can be determined according to the application requirements of the actual application scene. The field alarm 144 and the smoke monitoring chip 142 may be provided as separate components within the auxiliary chamber housing or may be integrated into the auxiliary circuitry in an integrated manner. The field alarm 144 may also be integrated onto the smoke monitoring chip 142. The device main control module refers to a main controller or a main control circuit unit in the communication device to which the power amplifier device 100 is applied.

Specifically, when the air exhaust module 16 exhausts air from the air exhaust hole of the auxiliary chamber housing, the air flows respectively flowing from the device chambers flow through the smoke monitoring chip 142. When the smoke monitoring chip 142 detects that smoke is contained in the flowing air flow, the smoke alarm can be automatically triggered, namely, a driving signal is output to the field alarm 144, so that the field alarm 144 carries out field alarm; meanwhile, the smoke monitoring chip 142 may also output an alarm signal to the device main control module, that is, output the alarm signal through the output port OUT shown in fig. 4, so as to notify the device main control module that the power amplifier apparatus 100 is damaged currently, and also facilitate the device main control module to perform other forms of power amplifier alarm, for example, but not limited to, performing power amplifier alarm display through a matched display device, or performing alarm notification to a terminal device used by an operation and maintenance person.

By applying the smoke monitoring chip 142 and the field alarm 144, the cost is low, and the power amplifier alarm function can be reliably realized by matching with the spacer ring punching and air extraction module 16, so that circuit devices required by power amplifier alarm can be greatly simplified, and the power amplifier alarm cost is reduced.

In one embodiment, the field alarm 144 is at least one of a buzzer, a voice alarm, and an alarm indicator light. It is understood that in this embodiment, a buzzer, a voice alarm or an alarm indicator may be used to implement the on-site alarm, and the buzzer and the alarm indicator, or a combined sound and light alarm manner of the voice alarm and the alarm indicator may be used to provide the on-site alarm. The buzzer, the voice alarm and the alarm indicator lamp are all traditional devices in the field, and the voice alarm can play set voice alarm sound. The warning indicator light may then be a different colored indicator light, such as yellow or red. The alarm indicator lamp automatically flashes after receiving the driving signal output by the smoke monitoring chip 142.

By applying the buzzer, the voice alarm and/or the alarm indicator lamp, the on-site alarm is simple and reliable to realize, the application cost is low, and the alarm cost of the power amplifier device 100 can be better reduced.

Referring to fig. 5, in an embodiment, the power amplifier 100 further includes an alarm power supply 18, and the alarm power supply 18 is electrically connected to the smoke alarm circuit 14 and is used for independently supplying power to the smoke alarm circuit 14.

It is understood that the alert power source 18 may be a non-rechargeable power source known in the art, such as a button cell or other dry cell battery, and the alert power source 18 may also be a rechargeable power source known in the art. The output current of the alarm power supply 18 may be determined according to the power requirements of the applied smoke alarm circuit 14. The alarm power supply 18 may be located within the auxiliary chamber housing or outside the auxiliary chamber housing, provided that reliable independent power supply to the smoke alarm circuit 14 is ensured. The alarm power supply 18 may be electrically connected to the smoke alarm circuit 14 through a separate wire, for example, the positive electrode and the negative electrode of the alarm power supply 18 are respectively connected to the power pins on the smoke monitoring chip 142 of the smoke alarm circuit 14 through two wires. The alarm power supply 18 may also be electrically connected to the smoke alarm circuit 14 via printed traces provided on the PCB substrate on which the smoke alarm circuit 14 is located.

Specifically, the independent alarm power supply 18 is provided for independently supplying power to the smoke alarm circuit 14, so that when the power amplifier device in the power amplification module 12 is damaged and the power supply is cut off, the smoke alarm circuit 14 does not share one power supply with the power amplification module 12, and the smoke alarm circuit 14 cannot normally supply power. Therefore, even if the power amplifier device is damaged and the power supply is cut off, the smoke alarm circuit 14 can still keep normal operation under the support of the specially arranged alarm power supply 18, and more reliable power amplifier alarm is realized.

Through the setting of the alarm power supply 18, the power amplifier alarm reliability of the power amplifier device 100 is further improved, and the smoke alarm circuit 14 can still alarm when the power amplifier device is damaged.

In one embodiment, the alert power source 18 is a rechargeable battery. The rechargeable battery is electrically connected to the device power supply through the fuse.

It is to be understood that the rechargeable battery may be any type of rechargeable battery conventional in the art, such as a lithium ion battery, a lithium polymer battery, or other types of rechargeable batteries. The rechargeable battery can be a single battery, or a rechargeable battery pack consisting of two or more batteries, and can be specifically set according to the actual application requirements. The device power supply source is a special power supply for providing power for the power amplifier device 100 in the communication device to which the power amplifier device 100 is applied, and is a complete machine power supply source for the communication device.

Specifically, the connection terminal of the rechargeable battery is electrically connected to the smoke alarm circuit 14 and also electrically connected to the device power supply through the fuse, so that the rechargeable battery can be charged by the device power supply while supplying power to the smoke alarm circuit 14. When the power amplifier device in the power amplification module 12 is damaged and the fuse is fused, the power supply of the device is disconnected from the circuit connection between the power amplification module 12 and the rechargeable battery. At this time, the power amplification module 12 fails to work normally when powered off, and the smoke alarm circuit 14 can continue to work normally when the rechargeable battery is independently powered, so that whether smoke exists in the airflow flowing through the auxiliary cavity shell can be continuously monitored, and if yes, an alarm is triggered.

By applying the rechargeable battery to independently supply power to the smoke alarm circuit 14, the alarm reliability of the power amplifier device 100 can be effectively improved, and the problems that the structural reliability of the power amplifier device 100 is reduced due to frequent disassembly and replacement of the battery, the smoke monitoring continuity of the smoke alarm circuit 14 is damaged and the like when a non-rechargeable battery is adopted can be avoided, the accuracy of smoke monitoring is better improved, the battery replacement cost can be further saved, and the power amplifier alarm cost of the power amplifier device 100 is better reduced.

In one embodiment, the air extraction module 16 is a fan, and the fan is electrically connected to the alarm power supply 18. It will be appreciated that conventional fans (i.e. small fans) may be employed to effect the flow direction from the extraction aperture of the auxiliary chamber housing. The structural size of the fan can be determined according to the structural size of the power amplification module 12, the installation position and the installation mode of the fan on the auxiliary cavity shell in practical application, as long as the air flow in each device cavity shell can be effectively guided to the smoke alarm circuit 14.

In the foregoing embodiment, the air pumping module 16 may be powered by an independent power source, or may be connected to a device power source for power supply. In this embodiment, the alarm power supply 18 is used to independently power the fan. In this way, when the power amplifier device in the power amplification module 12 is damaged and the fuse is blown, the power supply of the device is disconnected from the power amplification module 12 and the alarm power supply 18. At this time, the power amplification module 12 fails to continue to operate normally when it is powered off, and the smoke alarm circuit 14 can continue to maintain a normal operating state under the independent power supply of the alarm power supply 18 (such as a rechargeable battery), and the blower also maintains a normal operating state under the independent power supply of the alarm power supply 18, so that the airflow in each device cavity shell can be continuously drawn into the auxiliary cavity shell by the blower, flows through the smoke alarm circuit 14 and is discharged from the air exhaust hole of the auxiliary cavity shell, and the smoke alarm circuit 14 can continuously monitor whether smoke exists in the airflow flowing through the auxiliary cavity shell, and if so, alarm is triggered.

By applying the blower and the alarm power supply 18, the air flow in each device cavity shell can be ensured to continuously flow into the auxiliary cavity shell, so that the reliability and the monitoring efficiency of the smoke alarm circuit 14 on smoke monitoring can be better ensured.

In one embodiment, the fan is arranged in the auxiliary cavity shell or outside the auxiliary cavity shell and is matched with the position of the exhaust hole in the auxiliary cavity shell.

It can be understood that the fan can be installed inside the auxiliary cavity shell through welding, bonding or screwed connection and the like, for example, the fan blade or the air exhaust part (for example, when the fan is a micro bladeless fan) of the fan is matched with the position of the air exhaust hole on the auxiliary cavity shell, so as to ensure that the air flow is smoothly exhausted from the air exhaust hole. The fan also can be installed outside supplementary chamber shell through modes such as welding, bonding or screwed connection, for example fixed mounting is on the surface of supplementary chamber shell, and the flabellum of fan (or the portion of bleeding) matches with the exhaust hole position on the supplementary chamber shell to guarantee that the air current discharges smoothly from the exhaust hole.

The auxiliary cavity shell is provided with the fan which is matched with the smoke alarm circuit 14, so that the airflow in each device cavity shell is guided to monitor smoke with the auxiliary smoke alarm circuit 14, and meanwhile, ventilation can be performed on devices in each device cavity shell, and integral heat dissipation is provided for the power amplifier device 100.

In an embodiment, a communication device is further provided, which includes the power amplifier apparatus 100.

It can be understood that, for a specific explanation of the power amplifier device 100 in this embodiment, reference may be made to the corresponding explanation in each embodiment of the power amplifier device 100, and details are not repeated in this embodiment. Those skilled in the art will appreciate that the communication device may be any device applied to the power amplifier module 12 and requiring power amplifier alarm in the communication system. The communication device may also protect other components except the power amplifier 100, such as but not limited to a memory device, a transceiver antenna, a data conversion circuit, and the like.

According to the communication equipment, the power amplifier device 100 is applied, the power amplifier warning function can be realized based on the space ring punching and airflow guiding technology of the cavity shell and the smoke warning technology, and meanwhile, the ventilation and heat dissipation functions of the device of the power amplifier device 100 can be provided, so that the power amplifier warning cost of the communication equipment is greatly reduced, and the reliability of the equipment is improved.

Referring to fig. 6, in an embodiment, the communication device 200 further includes a device host module 201. The smoke alarm circuit 14 of the power amplifier device 100 includes a smoke monitoring chip 142 and a field alarm 144. The smoke monitoring chip 142 is electrically connected to the field alarm 144 and the device main control module 201. The smoke monitoring chip 142 is used for driving the field alarm 144 to alarm smoke and outputting an alarm signal to the equipment main control module 201 when detecting that smoke is generated in any device cavity shell.

It can be understood that for the explanation of the device main control module 201, the smoke monitoring chip 142, the field alarm 144, and the like in this embodiment, reference may be specifically made to the corresponding explanation in each specific embodiment of the power amplifier device 100, and details are not repeated in this embodiment.

Specifically, when the air extracting module 16 of the power amplifier device 100 extracts air from the air extracting hole of the auxiliary cavity housing, the air flows respectively flowing from the cavity of each device flow through the smoke monitoring chip 142. When the smoke monitoring chip 142 detects that smoke is contained in the flowing air flow, the smoke alarm can be automatically triggered, namely, a driving signal is output to the field alarm 144, so that the field alarm 144 carries out field alarm; meanwhile, the smoke monitoring chip 142 may also output an alarm signal to the device main control module 201 so as to notify the device main control module 201 that the power amplifier device 100 is damaged, and also facilitate the device main control module 201 to perform other types of power amplifier alarms, such as but not limited to performing power amplifier alarm display through a matched display device, or performing alarm notification to a terminal device used by an operation and maintenance worker.

Through the combined application of the equipment main control module 201, the smoke monitoring chip 142 and the field alarm 144, the cost is low, the power amplifier alarm function can be reliably realized by matching with the spacer ring punching and air extraction module 16, meanwhile, circuit devices required by power amplifier alarm can be greatly simplified, and the power amplifier alarm cost is reduced.

Referring to fig. 7, in an embodiment, the communication device 200 further includes a device power supply 202. The power amplifier device 100 further comprises an alarm power supply 18. The device power supply 202 is electrically connected to the rf device of the power amplification module 12 and the alarm power supply 18 through a fuse.

It can be understood that, for the explanation of the device power supply 202, the alarm power supply 18, the power amplification module 12, and the like in this embodiment, reference may be specifically made to the corresponding explanation in each specific embodiment of the power amplifier device 100, and details are not repeated in this embodiment.

Through the combined design of the alarm power supply 18 and the equipment power supply 202, the power amplifier alarm reliability of the communication equipment 200 is further improved, and the smoke alarm circuit 14 can still alarm when the power amplifier in the power amplifier device 100 is damaged.

In an embodiment, the communication device 200 is any one of a repeater device, a radio remote device, a track power amplifier device, an integrated power amplifier, and a receiver.

It can be understood that the communication device 200 applying the power amplifier apparatus 100 may be any one of a repeater device, a radio frequency remote device, a track power amplifier device, an integrated power amplifier (i.e. an integrated power amplifier device formed by integrating radio frequency power amplifier devices and other power amplifier related elements on the same structural base) and a receiver in the field, so as to improve the reliability of the power amplifier alarm function of the device and reduce the power amplifier alarm cost. It can be understood by those skilled in the art that the foregoing list is only a few common communication devices 200, and the power amplifier apparatus 100 may also be applied to other devices that need to have a power amplifier alarm function.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.