Air cooling device for active phased-array antenna receiver

Abstract

The utility model relates to an air cooling device for an active phased-array antenna receiver. The air cooling device comprises a receiver and an antenna array plane, the receiver is externally hung and installed on an antenna array plane, and the antenna array plane is provided with a channel assembly. A mounting cavity is formed in the receiver, a circuit board is assembled in the mounting cavity, a cover plate is mounted on the outer side, close to the mounting cavity, of the receiver, a butt joint cavity is formed in the surface of the cover plate, and a heat dissipation mechanism is arranged in the butt joint cavity. According to the device, the receiver and the antenna array plane are mounted in an externally-hung manner, and under the action that the antenna array plane static pressure cavity and the cover plate static pressure cavity share the air channel, heat dissipation can be performed under the condition of convenient disassembly and assembly; according to the device, the circuit board is arranged in the mounting cavity, so that the circuit board does not make direct contact with outside air, heat of the cooling fins of the cover plate is taken away through air flowing, and the sealing and anti-corrosion effects can be achieved while heat dissipation is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of receivers, in particular to an air cooling device for an active phased array antenna receiver. Background Art

[0002] The receiver is the core component of the active phased array antenna. With the miniaturization of active phased array radars, the integration of their internal digital and analog circuits is becoming increasingly higher, and the operating environment of the radar is becoming increasingly harsh. The carriers used include ground-based radars, shipborne radars, airborne radars, missile-borne radars, etc. This requires the radar to not only have a good heat dissipation solution, but also take into account environmental adaptability.

[0003] Disadvantages of traditional receiver cooling solutions:

[0004] 1. The external receiver is not sealed, and the air cooling duct flows through the internal single board components, which has poor environmental adaptability. Corrosive gases such as salt mist / acid gas in the air will enter the equipment, reducing the reliability of the equipment;

[0005] 2. The receiver is placed inside the antenna, the thermal control solution is complex, disassembly and assembly are difficult, and the maintainability MTTR is long, which is not conducive to mobile operations. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] In view of the following technical problems in the prior art: the external receiver is not sealed, the air cooling duct flows through the internal single-board components, the environmental adaptability is poor, and corrosive gases such as salt mist / acid gas in the air will enter the equipment, reducing the reliability of the equipment; the receiver is placed inside the antenna, the thermal control solution is complicated, disassembly and assembly are difficult, and the maintainability MTTR is long, which is not conducive to mobile operations.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: an air cooling device for an active phased array antenna receiver, comprising a receiver and an antenna array surface;

[0009] The receiver is externally mounted on an antenna array surface, and a channel component is provided on the antenna array surface;

[0010] The receiver is provided with an installation cavity, in which a circuit board is installed, a cover plate is installed on the outside of the receiver close to the installation cavity, a docking cavity is provided on the surface of the cover plate, and a heat dissipation mechanism is arranged in the docking cavity.

[0011] As a preferred technical solution for an active phased array antenna receiver air cooling device, the channel assembly includes an antenna array static pressure cavity, a fan air outlet and an antenna air inlet. The antenna array static pressure cavity is opened on the side of the antenna array facing the receiver, and the fan air outlet is arranged on both sides of the antenna array close to the receiver.

[0012] As a preferred technical solution for an active phased array antenna receiver air cooling device, the antenna air inlet is arranged at the bottom end of the antenna array surface, and the antenna array surface static pressure cavity, fan air outlet and antenna air inlet are connected.

[0013] As an optimal technical solution for an active phased array antenna receiver air cooling device, the heat dissipation mechanism includes a cover plate heat dissipation fin and a cover plate static pressure cavity. The cover plate heat dissipation fin is installed in a docking cavity. The cavity between the docking cavity and the cover plate heat dissipation fin is the cover plate static pressure cavity. The position of the cover plate static pressure cavity corresponds to the position of the antenna array surface static pressure cavity.

[0014] As a preferred technical solution for an air cooling device for an active phased array antenna receiver, a sealing strip is provided at the opening of the docking cavity, and the installation cavity is located at the bottom of the receiver and the opening is the receiver air inlet.

[0015] Beneficial effects of the utility model:

[0016] 1. The device is installed externally through the receiver and the antenna array, and under the action of the shared air duct between the static pressure cavity of the antenna array and the static pressure cavity of the cover plate, heat can be dissipated while being easy to disassemble and assemble;

[0017] 2. This device places the circuit board in the installation cavity so that the circuit board does not come into direct contact with the outside air. The heat of the heat dissipation fins of the cover plate is taken away by the wind flow, which ensures the heat dissipation and also has the effect of sealing and anti-corrosion;

[0018] 3. This device is arranged on the outside of the heat dissipation fins of the cover plate through a sealing strip to achieve the effect of preventing wind pressure loss.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is an overall bottom view schematic diagram of the utility model.

[0023] Figure 3 This is a schematic diagram of the connection between the receiver and the antenna array of the utility model.

[0024] Figure 4 It is a schematic diagram of the back structure of the receiver of the present utility model.

[0025] Figure 5 It is a schematic diagram of an explosion of a receiver of the present utility model.

[0026] Figure 6 It is a schematic diagram of the heat dissipation principle of the utility model.

[0027] Reference numerals:

[0028] 100. Receiver; 101. Installation cavity; 102. Circuit board; 103. Cover plate; 104. Docking cavity; 105. Cover plate heat dissipation fins; 106. Cover plate static pressure cavity; 107. Sealing strip; 108. Receiver air inlet; 200. Antenna array surface; 201. Antenna array surface static pressure cavity; 202. Fan air outlet; 203. Antenna air inlet. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example

[0034] This embodiment provides an active phased array antenna receiver air cooling device, including a receiver 100 and an antenna array surface 200;

[0035] Reference Figure 1 , 2 3. The receiver 100 is externally mounted on the antenna array surface 200, and a channel assembly is provided on the antenna array surface 200; the channel assembly includes an antenna array surface static pressure cavity 201, a fan air outlet 202, and an antenna air inlet 203. The antenna array surface static pressure cavity 201 is provided on the side of the antenna array surface 200 facing the receiver 100, and the fan air outlet 202 is provided on both sides of the antenna array surface 200 close to the receiver 100; the antenna air inlet 203 is provided at the bottom end of the antenna array surface 200, and the antenna array surface static pressure cavity 201, the fan air outlet 202, and the antenna air inlet 203 are connected;

[0036] Reference Figures 1 to 6 The receiver 100 is provided with an installation cavity 101, in which a circuit board 102 is installed, a cover plate 103 is installed on the outer side of the receiver 100 close to the installation cavity 101, a docking cavity 104 is provided on the surface of the cover plate 103, and a heat dissipation mechanism is arranged in the docking cavity 104; the heat dissipation mechanism comprises a cover plate heat dissipation fin 105 and a cover plate static pressure cavity 106, the cover plate heat dissipation fin 105 is installed in the docking cavity 104, the cavity between the docking cavity 104 and the cover plate heat dissipation fin 105 is the cover plate static pressure cavity 106, and the position of the cover plate static pressure cavity 106 corresponds to the position of the antenna array surface static pressure cavity 201; a sealing strip 107 is arranged at the opening of the docking cavity 104, wherein the sealing strip 107 is used to prevent wind pressure loss when the receiver 100 and the antenna array surface 200 are docked, and the installation cavity 101 is located at the bottom of the receiver 100 and is the receiver air inlet 108.

[0037] Through this implementation, it can be achieved that the heat dissipation air duct enters from the receiver air inlet 108 and flows through the cover heat dissipation fins 105 (the cover heat dissipation fins 105 are sealed inside the receiver 100 and have no contact with the air during the entire process), and the negative pressure of the antenna array static pressure cavity 201 is used to carry away the heat (along the flow channel). In this process, a sealing strip 107 is installed around the cover heat dissipation fins 105 (on three sides) to prevent wind pressure loss.

[0038] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An air cooling device for an active phased array antenna receiver, characterized in that: It comprises a receiver (100) and an antenna array (200); The receiver (100) is externally mounted on an antenna array surface (200), and a channel component is provided on the antenna array surface (200); The receiver (100) is provided with an installation cavity (101), a circuit board (102) is installed in the installation cavity (101), a cover plate (103) is installed on the outside of the receiver (100) close to the installation cavity (101), a docking cavity (104) is provided on the surface of the cover plate (103), and a heat dissipation mechanism is arranged in the docking cavity (104).

2. The air cooling device for an active phased array antenna receiver according to claim 1, characterized in that: The channel assembly comprises an antenna array surface static pressure cavity (201), a fan air outlet (202) and an antenna air inlet (203); the antenna array surface static pressure cavity (201) is opened on a side of the antenna array surface (200) facing the receiver (100), and the fan air outlet (202) is arranged on both sides of the antenna array surface (200) close to the receiver (100).

3. The air cooling device for active phased array antenna receiver according to claim 2, characterized in that: The antenna air inlet (203) is arranged at the bottom end of the antenna array surface (200), and the antenna array surface static pressure cavity (201), the fan air outlet (202) and the antenna air inlet (203) are in communication.

4. The air cooling device for an active phased array antenna receiver according to claim 1, characterized in that: The heat dissipation mechanism comprises a cover plate heat dissipation fin (105) and a cover plate static pressure cavity (106); the cover plate heat dissipation fin (105) is installed in a docking cavity (104); a cavity between the docking cavity (104) and the cover plate heat dissipation fin (105) is a cover plate static pressure cavity (106); and a position of the cover plate static pressure cavity (106) corresponds to a position of an antenna array surface static pressure cavity (201).

5. The air cooling device for active phased array antenna receiver according to claim 1, characterized in that: A sealing strip (107) is provided at the opening of the docking cavity (104), and the installation cavity (101) is located at the bottom of the receiver (100) and the opening is the receiver air inlet (108).

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