CN214799422U - Over-temperature protection device of underwater acoustic communication power amplifier - Google Patents
Over-temperature protection device of underwater acoustic communication power amplifier Download PDFInfo
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- CN214799422U CN214799422U CN202120873022.4U CN202120873022U CN214799422U CN 214799422 U CN214799422 U CN 214799422U CN 202120873022 U CN202120873022 U CN 202120873022U CN 214799422 U CN214799422 U CN 214799422U
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- louver
- box shell
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- power amplifier
- underwater acoustic
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Abstract
The utility model discloses an over-temperature protection device of an underwater acoustic communication power amplifier, which comprises an outer casing and an inner casing; the heat generated by the electronic components arranged in the inner box shell during working is transferred to the air channel formed by the inner box shell and the outer box shell together through the inner box shell. Due to the structure of the double-layer box shell, airflow can be blown into the air channel through the air inlet, high-temperature air in the air channel can be blown out through the air outlet, and the temperature of the airflow replacing the air inlet channel is relatively low, so that the active heat dissipation function is realized, and the excessive heat loss of the underwater acoustic communication power amplifier can be effectively prevented. Under normal conditions, in order to avoid the air current to blow electronic components directly and cause the damage, utilize the interior case shell with inside heat transfer to the wind channel in again through the air current discharge, but when emergency appeared, for example electronic components temperature suddenly rose and when unable effective cooling through indirect radiating mode, air current blow electronic components directly when opening first louver to realize rapid cooling.
Description
Technical Field
The utility model relates to a power amplifier technical field, concretely relates to underwater sound communication power amplifier's excess temperature protection device.
Background
An underwater acoustic communication power amplifier is a signal amplifying device, which can generate maximum power output to drive a certain load (such as a loudspeaker) under the condition of a given distortion rate. The power of a power supply is converted into a current which changes according to an input signal by using the current control function of a triode or the voltage control function of a field effect transistor. Because sound is waves with different amplitudes and different frequencies, namely alternating signal current, the collector current of the triode is constantly beta times of the base current in an amplification region, and beta is the current amplification coefficient of the triode, if a small signal is injected into the base, the current flowing through the collector is equal to the beta times of the base current, and then the signal is isolated by a blocking capacitor, so that a large signal with the current (or voltage) being the original beta times is obtained, and the phenomenon is called the amplification effect of the triode. The power amplification is completed through continuous current amplification.
In order to be suitable for a specific scene, the underwater acoustic communication power amplifier must have the capability of continuously working for a long time, and under the long-time continuous working state, the underwater acoustic communication power amplifier generates a large amount of heat energy, and if the heat energy cannot be timely dissipated, the underwater acoustic communication power amplifier is damaged at high temperature. Therefore, the existing underwater acoustic communication power amplifier has the risk of damage caused by over-temperature in the actual use process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an excessive temperature protection device of underwater acoustic communication power amplifier aims at reducing current underwater acoustic communication power amplifier's excessive temperature and causes the loss risk.
In order to achieve the above object, the over-temperature protection device for an underwater acoustic communication power amplifier provided by the utility model comprises an outer casing and an inner casing;
an air inlet is formed on one surface of the outer box shell, and an air outlet is formed on the other surface of the outer box shell; the outer box shell is sleeved outside the inner box shell, and an air channel is formed between the outer box shell and the inner box shell;
the inner box shell is used for containing electronic components, the inner box shell is right opposite to one face of the air inlet, a first louver is installed on one face of the air inlet, and when the first louver is opened, airflow entering from the air inlet can be blown into the inner space of the inner box shell through the first louver.
Preferably, a fan is installed on the air inlet of the outer case, and the fan blows air into the outer case.
Preferably, the outer case is a cubic case, and the air inlet and the air outlet are respectively disposed on two opposite case walls.
Preferably, a second louver is installed on one surface, facing the air outlet, of the inner box shell, and when the second louver is opened, airflow in the inner box shell can be blown out from the air outlet through the second louver.
Preferably, the inner box casing is a cubic casing, four side walls of the inner box casing perpendicular to the first louvers are respectively provided with a third louver, and when the third louver is opened, the airflow in the air duct can be blown into the inner space of the inner box casing through the third louver.
Preferably, a plurality of moisture absorption boxes are distributed in the air duct, and moisture absorbent is detachably filled in each moisture absorption box.
Preferably, the over-temperature protection device of the underwater acoustic communication power amplifier further comprises a controller, and the controller is in signal connection with the first louver, the second louver and each of the third louvers;
the electronic component is provided with a temperature sensor at the position opposite to the first louver and at the position opposite to each third louver; and each temperature sensor is in signal connection with the controller.
Preferably, a damper is disposed between the outer case and the inner case.
The technical scheme of the utility model in, install in electronic components in the inner box shell passes through at the heat that the during operation produced the inner box shell transmits extremely the inner box shell with in the wind channel that outer shell encloses jointly. Owing to be provided with the structure of double-deck case shell, the air current can pass through the air intake is insufflated the wind channel, blows off high temperature gas wherein the air outlet, and the replacement is advanced the air current temperature in wind channel is lower relatively to realized the initiative heat dissipation function, can effectively prevent that the underwater acoustic communication power amplifier from excessively giving the heat to losing. Under the normal condition, in order to avoid the air current to blow electronic components directly and cause the damage, utilize interior case shell will inside heat transfer extremely discharge through the air current again in the wind channel, but when emergency appears, for example electronic components temperature suddenly rises and through the unable effective cooling of indirect radiating mode, opens air current blows electronic components directly during the first louver to realize rapid cooling.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view (first view) of the over-temperature protection device of the underwater acoustic communication power amplifier of the present invention;
fig. 2 is a schematic structural view (second view) of the over-temperature protection device of the underwater acoustic communication power amplifier of the present invention;
fig. 3 is a schematic cross-sectional view of the over-temperature protection device of the underwater acoustic communication power amplifier of the present invention;
FIG. 4 is a schematic view of the construction of the inner enclosure.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
210 | |
| 110 | Fan with |
220 | |
| 200 | |
230 | |
| 120 | Rain- |
300 | Shock absorber |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides an excessive temperature protection device of underwater acoustic communication power amplifier.
Referring to fig. 1 to 4, the over-temperature protection device for an underwater acoustic communication power amplifier includes an outer case 100 and an inner case 200;
an air inlet is formed on one surface of the outer case 100, and an air outlet is formed on the other surface of the outer case 100; the outer case 100 is sleeved outside the inner case 200, and an air duct is formed between the outer case 100 and the inner case 200;
the inner box shell 200 is used for containing electronic components, a first louver 210 is installed on one surface, facing the air inlet, of the inner box shell 200, and when the first louver 210 is opened, airflow entering from the air inlet can be blown into the inner space of the inner box shell 200 through the first louver 210.
The technical scheme of the utility model among, install in electronic components in the inner box shell 200 passes through at the heat that the during operation produced inner box shell 200 transmits extremely inner box shell 200 with in the wind channel that outer shell 100 encloses jointly. Owing to be provided with the structure of double-deck case shell, the air current can pass through the air intake is insufflated the wind channel, blows off high temperature gas wherein the air outlet, and the replacement is advanced the air current temperature in wind channel is lower relatively to realized the initiative heat dissipation function, can effectively prevent that the underwater acoustic communication power amplifier from excessively giving the heat to losing. Under the normal condition, in order to avoid the air current to blow electronic components directly and cause the damage, utilize interior case shell 200 will inside heat transfer extremely discharge through the air current again in the wind channel, but when emergency appears, for example electronic components temperature suddenly rises and when unable effective cooling through indirect radiating mode, opens air current blows electronic components directly during first shutter window 210 to realize rapid cooling.
Specifically, the air outlet is provided with a rain-proof grid 120, the rain-proof grid 120 is transversely arranged with an opening facing downward to prevent rainwater dripping from above from entering the outer case 100.
Preferably, a fan 110 is installed at the air inlet of the outer case 100, and the fan 110 blows air into the outer case 100.
In order to further improve the heat dissipation efficiency, the fan 100 accelerates the air flow to remove heat energy more efficiently.
Preferably, the outer case 100 is a cubic case, and the air inlet and the air outlet are respectively disposed on two opposite walls.
Since the air flow enters the air duct from the air inlet and is blown out from the air outlet, in order to increase the flowing distance of the air flow in the air duct to better take away heat, the air inlet and the air outlet are respectively arranged on two opposite shell walls.
Preferably, a second louver 220 is installed on a surface of the inner box casing 200 facing the air outlet, and when the second louver 220 is opened, the airflow in the inner box casing 200 can be blown out from the air outlet through the second louver 220.
In order to make the air flow smoothly flow in the inner box casing 200, a second louver 220 is installed on a surface of the inner box casing 200 facing the air outlet, and the air flow flows in from the first louver 220 and then flows out through the second louver 220, so as to avoid unsmooth air passage.
Preferably, the inner case 200 is a cubic case, and a third louver 230 is respectively installed on four side walls of the inner case 200 perpendicular to the first louvers 210, and when the third louver 230 is opened, the air flow in the air duct can be blown into the inner space of the inner case 200 through the third louver 230.
Since a plurality of electronic components are installed in the inner box 200, the heating efficiency of each electronic component is different. When some electronic components are heated to cause local temperature rise, the corresponding third louvers 230 can be independently opened to dissipate heat, so as to reduce the influence of airflow on other electronic components.
Preferably, a plurality of moisture absorption boxes are distributed in the air duct, and moisture absorbent is detachably filled in each moisture absorption box.
The moisture absorbent contained in the moisture absorption box can absorb water vapor in air flow so as to prevent the water vapor from entering the inner box shell 200 to cause damage to electronic components.
Preferably, the over-temperature protection device for the underwater acoustic communication power amplifier further comprises a controller, and the controller is in signal connection with the first louver 210, the second louver 220 and each of the third louvers 230;
the electronic component is provided with a temperature sensor at the position facing the first louver 210 and at the position facing each third louver 230; each temperature sensor is in signal connection with the controller;
the controller can respectively control the opening and closing of the first louver 210, the second louver 220 and the third louvers 230 according to the temperature information obtained by the temperature sensors.
The temperature sensors are arranged in a distributed mode to collect temperature information of each area, and the controller controls the opening and closing of the corresponding louver, so that automatic control is achieved.
Preferably, when the first louver 210 or any one of the third louvers 230 is in an open state, the second louver 220 is open.
Since the first louvers 210 and the third louvers 230 are used to introduce the air flow, the second louvers 220 are used as air flow outlets in order to smoothly circulate the air flow in the inner case 200.
Preferably, a damper 300 is disposed between the outer case 100 and the inner case 200.
In order to reduce the damage of electronic components caused by vibration, the damper 300 is disposed in the air duct.
The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (7)
1. An over-temperature protection device of an underwater acoustic communication power amplifier is characterized in that a double-layer box shell structure is arranged, and comprises an outer box shell (100) and an inner box shell (200);
an air inlet is formed on one surface of the outer box shell (100), and an air outlet is formed on the other surface of the outer box shell (100); the outer box shell (100) is sleeved outside the inner box shell (200), and an air duct is formed between the outer box shell (100) and the inner box shell (200);
the inner box shell (200) is used for containing electronic components, a first louver (210) is installed on one surface, facing the air inlet, of the inner box shell (200), and when the first louver (210) is opened, airflow entering from the air inlet can be blown into the inner space of the inner box shell (200) through the first louver (210); a fan (110) is installed on the air inlet of the outer box shell (100), and the fan (110) blows air to the interior of the outer box shell (100); the over-temperature protection device of the underwater acoustic communication power amplifier further comprises a controller, and the controller is in signal connection with the first louver (210).
2. The over-temperature protection device for the underwater acoustic communication power amplifier as claimed in claim 1, wherein the outer case (100) is a cubic case, and the air inlet and the air outlet are respectively disposed on two opposite walls.
3. The over-temperature protection device for the underwater acoustic communication power amplifier as claimed in claim 1, wherein a second louver (220) is installed on a surface of the inner housing (200) facing the air outlet, and when the second louver (220) is opened, the air flow in the inner housing (200) can be blown out from the air outlet through the second louver (220).
4. The overheat protection apparatus for the underwater acoustic communication power amplifier as claimed in claim 3, wherein said inner case (200) is a cubic case, and a third louver (230) is installed on each of four side walls of said inner case (200) perpendicular to said first louver (210), and when said third louver (230) is opened, the air flow in said air duct can be blown into the inner space of said inner case (200) through said third louver (230).
5. The over-temperature protection device for the underwater acoustic communication power amplifier as claimed in claim 4, wherein a plurality of moisture absorption boxes are distributed in the air duct, and each moisture absorption box is detachably filled with a moisture absorbent.
6. The over-temperature protection device for the underwater acoustic communication power amplifier as claimed in claim 5, wherein the controller is in signal connection with the second louver (220) and each of the third louvers (230), respectively;
the electronic component is provided with a temperature sensor at the position opposite to the first louver (210) and at the position opposite to each third louver (230); and each temperature sensor is in signal connection with the controller.
7. The over-temperature protection device for underwater acoustic communication power amplifier according to any of claims 1 to 6, wherein a damper (300) is provided between the outer case (100) and the inner case (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120873022.4U CN214799422U (en) | 2021-04-26 | 2021-04-26 | Over-temperature protection device of underwater acoustic communication power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120873022.4U CN214799422U (en) | 2021-04-26 | 2021-04-26 | Over-temperature protection device of underwater acoustic communication power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214799422U true CN214799422U (en) | 2021-11-19 |
Family
ID=78689788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120873022.4U Active CN214799422U (en) | 2021-04-26 | 2021-04-26 | Over-temperature protection device of underwater acoustic communication power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214799422U (en) |
-
2021
- 2021-04-26 CN CN202120873022.4U patent/CN214799422U/en active Active
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