Air-cooled handheld station structure

Abstract

The invention discloses an air cooling handheld station structure which comprises a handheld station body, a rear shell assembly is fixedly arranged on the back face of the handheld station body, and the bottom of the handheld station body is connected with a battery module. The rear shell assembly comprises a rear shell body, a rear shell cover plate and two axial flow fans. A heating device of the handheld station body leads heat to the rear shell through a heat-conducting medium, the rear shell is provided with heat dissipation fins used for strengthening air cooling heat exchange, and ventilation holes are formed in the rear shell and the rear shell cover plate. The heat dissipation device is suitable for the handheld station with high power density, effectively solves the heat dissipation problem of the handheld station under the condition that the size is limited, and meets the use requirements of miniaturization and light weight.

Description

Technical Field

[0001] This invention relates to the field of handheld stations, and more particularly to an air-cooled handheld station structure. Background Technology

[0002] Currently, the communication range of military handheld communication stations is limited by power density and the resulting thermal effect, making it difficult to significantly improve.

[0003] Traditional military communication handheld stations rely on natural heat dissipation. Improving heat dissipation can only be achieved by increasing the heat dissipation area, which contradicts the trend towards miniaturization. Handheld stations have strict size and weight limitations; increasing the heat dissipation area increases size and weight, encroaching on battery weight limits and impacting battery life. Furthermore, with the increasing thermal design power (TDP), this natural cooling method cannot meet the heat dissipation requirements of high-power-density devices, affecting operational performance and potentially leading to thermal failure.

[0004] In summary, existing handheld stations mainly use passive heat dissipation. If high-power devices are used, it is necessary to increase the size to enhance heat dissipation performance, which will inevitably lead to an excessively large and heavy handheld station, which contradicts the current demand for miniaturization and lightweight applications. Summary of the Invention

[0005] Purpose of the invention: To address the shortcomings and defects of existing technologies, this invention provides an air-cooled handheld station structure suitable for high power density handheld stations, effectively solving the heat dissipation problem of handheld stations under size constraints, and meeting the needs for miniaturization and lightweighting.

[0006] Technical solution: The present invention provides a wind-cooled handheld station structure, characterized in that: it includes a handheld station body, a rear shell assembly fixedly disposed on the back of the handheld station body, and a battery module connected to the bottom of the handheld station body; the rear shell assembly includes a rear shell, a rear shell cover plate and two axial flow fans; the heat-generating device of the handheld station body transfers heat to the rear shell through a heat-conducting medium, the rear shell is provided with heat dissipation fins for enhancing wind-cooling heat exchange, and ventilation holes are opened in the rear shell and the rear shell cover plate.

[0007] The rear cover plate of the rear shell assembly is fixed to the top of the rear shell, and the two axial flow fans are limited and fixed by the rear shell and the rear cover plate.

[0008] The rear shell assembly is equipped with a power connector, which is fixed in the limiting groove of the rear shell.

[0009] The power connector is located within the limiting groove, and the power connector is surrounded by sealant.

[0010] The rear shell assembly is a CNC-milled, one-piece structure with ventilation holes around its perimeter and heat dissipation teeth inside the rear shell. The heat dissipation teeth are arranged on the side of the ventilation holes, and the tooth shape of the heat dissipation teeth is parallel to the ventilation holes.

[0011] The ventilation holes are located on the end face of the rear cover plate, and are located around the rear cover plate and at the air outlet of the axial fan.

[0012] The heat dissipation teeth are located between the axial flow fans, and the teeth are square in shape and arranged in a rectangular array.

[0013] Two of the axial fans are fixed inside the rear housing. The air inlet end face of the axial fan is located on the side of the inner surface of the rear housing. A gap is left between the air inlet end face of the axial fan and the inner surface of the rear housing. The air outlet end face of the axial fan is attached to the rear housing cover plate.

[0014] The gap is not less than 5mm.

[0015] The rear housing is provided with a fixing boss for positioning and fixing the axial fan.

[0016] Beneficial Effects: Compared with existing technologies, the present invention has the following significant advantages: The rear housing assembly of the present invention embeds a wind-cooled heat dissipation fan, improving the heat dissipation capacity of the handheld station. This allows the handheld station to use higher power density components, further improving its communication performance and operational reliability. Furthermore, the axial fan is fixed inside the rear housing assembly, allowing for quick fan replacement by replacing the rear housing assembly, facilitating subsequent routine fan inspection and maintenance. It is suitable for high power density handheld stations, effectively solving the heat dissipation problem of handheld stations under size constraints, and meeting the requirements for miniaturization and lightweight design. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear shell assembly of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the handheld station body of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the rear housing of the present invention;

[0021] In the figure, 1 is the main body of the handheld station; 2 is the rear shell assembly; 3 is the battery module; 4 is the heat conduction medium; 5 is the heating element; 6 is the printed circuit board; 21 is the rear shell; 22 is the rear shell cover plate; 23 is the axial fan; 24 is the power connector; 211 is the fixing boss; 212 is the heat dissipation tooth; 213 is the ventilation hole; and 214 is the limiting groove. Detailed Implementation

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 The air-cooled handheld station structure of the present invention includes a handheld station body 1, a rear shell assembly 2, and a battery module 3. The back of the handheld station body 1 is provided with an opening, the shape of which is consistent with that of the rear shell assembly 2. The rear shell assembly 2 is tightly attached to the back of the handheld station body 1 and is connected and fastened by screws. The battery module 2 is installed at the bottom of the handheld station body 1.

[0024] like Figure 2 , Figure 3 The rear housing assembly 2 includes a rear housing 21, a rear housing cover 22, an axial fan 23, and a power connector 24. The rear housing 21 is integrally formed using CNC milling. Ventilation holes 213 are formed around the rear housing 21. Heat dissipation fins 212 are provided inside the rear housing 21, with the fins positioned near the ventilation holes 213 and parallel to the ventilation holes 213. The heat dissipation fins 212 are located between the two axial fans 23, and the fins are square in shape and arranged in a rectangular array. A fixing boss 211 is provided inside the rear housing 21 for positioning and fixing the axial fans 23. The power connector 24 is installed in a limiting groove 214 and sealed around its perimeter with sealant to ensure a seal between the rear housing assembly 2 and the handheld station body 1.

[0025] Optionally, such as Figure 4 The handheld station body 1 is equipped with a printed circuit board 6 and a heating element 5. A heat-conducting medium 4 is installed between the heating element 5 and the rear shell assembly 2 to reduce the thermal resistance between the heating element 5 and the rear shell assembly 2.

[0026] Practical testing has shown that conventional handheld stations using passive cooling methods, with a metal casing, typically have a heat dissipation limit of no more than 0.12 W / cm³ in terms of volumetric power density. 3 The maximum forced air volumetric power density can reach 0.43 W / cm³. 3 This invention uses forced air cooling, which theoretically increases the overall power of the handheld station by more than 3.5 times compared to conventional passive heat transfer handheld stations.

[0027] The above embodiments merely illustrate preferred embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features and make various modifications and improvements without departing from the concept of the present invention; all of these fall within the protection scope of this patent. Therefore, any equivalent transformations and modifications made within the scope of the claims of this patent should be covered by the claims of this patent.

Claims

1. A wind-cooled handheld station structure, characterized in that: The device includes a handheld station body (1), a rear shell assembly (2) fixedly installed on the back of the handheld station body (1), and a battery module (3) connected to the bottom of the handheld station body (1). The rear shell assembly (2) includes a rear shell (21), a rear shell cover (22) and two axial flow fans (23). The heat-generating device (5) of the handheld station body (1) transfers heat to the rear shell (21) through a heat-conducting medium (4). The rear shell (21) is provided with heat dissipation fins for enhancing air-cooled heat exchange. Ventilation holes (213) are opened in the rear shell (21) and the rear shell cover (22).

2. The air-cooled handheld station structure according to claim 1, characterized in that: The rear cover plate (22) of the rear shell assembly (2) is fixed on the top of the rear shell (21), and the two axial flow fans (23) are limited and fixed by the rear shell (21) and the rear cover plate (22).

3. The air-cooled handheld station structure according to claim 1, characterized in that: The rear housing assembly (2) is provided with a power connector (24), which is fixed in the limiting groove (214) of the rear housing (21).

4. The air-cooled handheld station structure according to claim 3, characterized in that: The power connector (24) is located in the limiting groove (214), and the power connector (24) is filled with sealant around its perimeter.

5. The air-cooled handheld station structure according to claim 1, characterized in that: The rear shell assembly (2) has a rear shell (21) which is a CNC milling integral structure. Ventilation holes (213) are provided around the rear shell (21). Heat dissipation teeth (212) are provided inside the rear shell (21). The heat dissipation teeth (212) are arranged on the side of the ventilation holes (213), and the tooth shape of the heat dissipation teeth (212) is parallel to the ventilation holes (213).

6. The air-cooled handheld station structure according to claim 5, characterized in that: The ventilation hole (213) is located on the end face of the rear cover plate (22), and the ventilation hole (213) is located around the rear cover plate (22) and at the air outlet of the axial fan (23).

7. The air-cooled handheld station structure according to claim 5, characterized in that: The heat dissipation teeth (212) are located between the axial flow fans (23). The heat dissipation teeth (212) have a square shape and are arranged in a rectangular array.

8. The air-cooled handheld station structure according to claim 1, characterized in that: Two axial flow fans (23) are fixed inside the rear housing (21). The air inlet end face of the axial flow fan (23) is located on the side of the inner surface of the rear housing (21). There is a gap between the air inlet end face of the axial flow fan (23) and the inner surface of the rear housing (21). The air outlet end face of the axial flow fan (23) is attached to the rear housing cover plate (22).

9. The air-cooled handheld station structure according to claim 8, characterized in that: The gap shall be no less than 5mm.

10. The air-cooled handheld station structure according to claim 8, characterized in that: The rear housing (21) is provided with a fixing boss (211) for positioning and fixing the axial fan (23).

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