Antenna testing device

Abstract

The utility model provides an antenna testing device which comprises a PCB, a metal bottom plate and a radiator, the back face of the PCB is installed on the metal bottom plate, the radiator is installed on the front face of the PCB, the radiator is provided with an avoiding groove and an avoiding via hole, the avoiding groove is used for containing components on the front face of the PCB, and the avoiding via hole is used for containing the components on the front face of the PCB. And the avoiding via hole is used for allowing a cable connected with the PCB to pass through. And the radiator and the metal bottom plate are respectively arranged on the front surface and the back surface of the PCB, so that the functions of radiating, shielding and avoiding are realized at the same time, and the requirements of small structural space, high integration level, multiple functional requirements and the like of the whole machine can be met.

Description

Technical Field

[0001] The present application belongs to the technical field of communication equipment, and in particular, relates to an antenna testing device. Background Art

[0002] Each component on the antenna test device needs to be shielded. The common shielding structure is currently used for single-sided shielding. This shielding structure is suitable for antenna test devices with a small number of electronic components and a large shielding space. However, when the overall structure of the antenna test device is small, highly integrated, and assembled, it must realize multiple functions such as chip resistance, attenuation, filtering, heat dissipation, shielding, RF testing, software testing, and simultaneous shielding of the front and back of the PCB circuit board, and also achieve low cost requirements. The existing shielding structure can no longer meet the above requirements. Utility Model Content

[0003] The technical problem solved by the present application is: how to provide an antenna testing device that can simultaneously achieve heat dissipation, shielding, and avoidance effects.

[0004] The present application provides an antenna testing device, which includes a PCB circuit board, a metal base plate and a radiator. The back of the PCB circuit board is installed on the metal base plate, and the radiator is installed on the front of the PCB circuit board. The radiator is provided with an avoidance groove and an avoidance via. The avoidance groove is used to accommodate components on the front of the PCB circuit board, and the avoidance via is used to pass a cable connected to the PCB circuit board.

[0005] Optionally, the radiator includes a heat dissipation base plate and a plurality of heat dissipation fins, the plurality of heat dissipation fins are spaced apart on the top surface of the heat dissipation base plate, the bottom surface of the heat dissipation base plate is installed on the front surface of the PCB circuit board, the avoidance groove is arranged on the bottom surface of the heat dissipation base plate, and the avoidance via passes through the bottom surface and the top surface of the heat dissipation base plate.

[0006] Optionally, the metal bottom plate is provided with a step groove, and the step groove is used to accommodate and expose the circuit on the back side of the PCB circuit board.

[0007] Optionally, the antenna testing device further includes a shielding plate, which is detachably mounted on the step groove, and the shielding plate covers the circuit on the back side of the PCB circuit board.

[0008] Optionally, the shielding plate is provided with a fixing hole, and the antenna testing device further comprises a countersunk screw, which passes through the fixing hole and is threadedly connected to the metal base plate.

[0009] The present application provides an antenna testing device, which has the following technical effects:

[0010] The heat sink and the metal base plate are installed on the front and back of the PCB circuit board respectively, which can realize the functions of heat dissipation, shielding and avoidance at the same time, and can also meet the requirements of small structure space, high integration and multiple functional requirements of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 An exploded schematic diagram of an antenna testing device according to Embodiment 1 of the present application;

[0012] Figure 2 A partial top view of the antenna testing device of the first embodiment of the present application;

[0013] Figure 3 A partial bottom view of the antenna testing device of the first embodiment of the present application;

[0014] Figure 4 This is a schematic diagram of the bottom surface of the heat dissipation base plate of the first embodiment of the present application;

[0015] Figure 5 This is a schematic diagram of a shielding plate according to Embodiment 1 of the present application.

[0016] The corresponding relationship between the reference numerals and the component names is as follows:

[0017] 10-PCB circuit board, 11-RF connector, 12-RF cable, 13-resistor, 14-fixed attenuator, 20-metal base plate, 30-heat sink, 31-heat sink, 31a-groove, 31b-avoidance via, 32-heat sink tooth plate, 40-shielding plate, 41-fixing hole, 50-countsunk screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] Before describing the various embodiments of the present application in detail, the technical concept of the present application is briefly described first: the current shielding structure cannot meet the requirements of the antenna test device, such as many components, complex assembly, large heat dissipation structure, and small overall structure space. Therefore, the antenna test device provided by the present application uses a metal bottom plate, a shielding plate, and a radiator to shield the back and front of the PCB circuit board, wherein the radiator is also provided with an avoidance groove and an avoidance via to avoid the components on the PCB circuit board. The specific principle of the antenna test device of the present application is described below in combination with more embodiments.

[0020] Specifically, Figure 1 , Figure 2 , Figure 3As shown, an antenna test device in this embodiment includes a PCB circuit board 10, a metal base plate 20 and a heat sink 30. The back of the PCB circuit board 10 is mounted on the metal base plate 20, and the heat sink 30 is mounted on the front of the PCB circuit board 10. The heat sink 30 is provided with an avoidance groove and an avoidance via. The avoidance groove is used to accommodate components on the front of the PCB circuit board 10, and the avoidance via is used to pass the cable connected to the PCB circuit board 10. Among them, the material of the heat sink 30 is metal material to achieve good heat dissipation and shielding effects, and the number and shape of the avoidance groove and the avoidance via are set according to specific needs.

[0021] In one or more embodiments, the heat sink 30 includes a heat sink base 31 and a plurality of heat sink fins 32, wherein the plurality of heat sink fins 32 are spaced apart on the top surface of the heat sink base 31, the bottom surface of the heat sink base 31 is mounted on the front surface of the PCB circuit board 10, the avoidance groove is provided on the bottom surface of the heat sink base 31, and the avoidance via passes through the bottom surface and the top surface of the heat sink base 31. The heat sink base 31 has a certain thickness, and the depth of the avoidance groove is less than the thickness, so that while the avoidance groove is used to avoid the components on the front surface of the PCB circuit board 10, the heat sink base 31 can also shield the components.

[0022] For example, the components on the front side of the PCB circuit board 10 may be a radio frequency connector 11, such as Figure 4 As shown, the avoidance groove on the bottom surface of the heat dissipation base plate 31 may include a groove 31a for avoiding the RF connector 11 and its circuit, and the cable connected to the PCB circuit board 10 may be a RF cable 12. The avoidance via 31b is set at the edge of the heat dissipation base plate 31, and the RF cable 12 passes through the avoidance via 31b. In one or more embodiments, different components are also welded on the back of the PCB circuit board 10, such as the resistor 13 and the fixed attenuator 14. At this time, a corresponding avoidance groove (not shown) can be opened on the metal base plate 20 to accommodate and avoid components such as the resistor 13 and the fixed attenuator 14.

[0023] In one or more embodiments, the metal base plate 20 is provided with a step groove (not shown), and the antenna testing device further includes a shielding plate 40, which is detachably mounted on the step groove, and the step groove is used to accommodate and expose the circuit on the back of the PCB circuit board 10, and the shielding plate 40 covers the circuit on the back to achieve a shielding effect. When testing, the shielding plate 40 is disassembled to expose the circuit, and the circuit on the back of the PCB is selectively welded according to different test requirements, such as software testing requirements or radio frequency testing requirements. Exemplarily, there are three sections of open circuits on the back of the PCB, two of which can be welded to realize the software testing function, and the other two can be welded to realize the radio frequency testing function. After welding, the shielding plate 40 is installed, and finally the device to be tested is connected to the radio frequency connector 11 for testing. During the test, it must be ensured that the places where the signal may leak are all shielded, so the test can only be carried out after the shielding plate 40 is installed.

[0024] For example, Figure 5 As shown, the shielding plate 40 is provided with a fixing hole 41, and the antenna testing device further includes a countersunk screw 50, which passes through the fixing hole 41 and is threadedly connected to the metal bottom plate 20, thereby realizing the installation of the shielding plate 40. The shielding plate 40 is accommodated and installed in the installation groove, so that the shielding plate 40 and the metal bottom plate 20 can overlap in the thickness direction, which is beneficial to reducing the overall size of the antenna testing device, and at the same time, the surface of the metal bottom plate 20 away from the PCB circuit board 10 can be kept intact.

[0025] The assembly process of the antenna test device of the first embodiment is as follows: first, the RF connector 11 is welded on the front of the PCB circuit board 10, and then the resistor 13 and the fixed attenuator 14 are welded on the back of the PCB circuit board 10, then the PCB circuit board 10 is fixed on the metal base plate 20, and then the RF cable 12 is welded on the front pad of the PCB circuit board 10, and then the heat sink 30 is installed, the metal base plate 20 is turned over, and the shielding plate 40 is installed on the back of the metal base plate 20, and finally the countersunk screws 50 are tightened to fix the shielding plate 40 and the metal base plate 20, thereby completing the assembly.

[0026] The antenna testing device provided in this embodiment installs the heat sink and the metal base plate on the front and back of the PCB circuit board respectively, realizing the functions of heat dissipation, shielding and avoidance at the same time, and can also meet the requirements of small overall structure space, high integration and multiple functions.

[0027] The specific implementation methods of the present application are described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments can be modified and improved without departing from the principles and spirit of the present application whose scope is defined by the claims and their equivalents. These modifications and improvements should also be within the scope of protection of the present application.

Claims

1. An antenna testing device, characterized in that: The antenna testing device includes a PCB circuit board, a metal base plate and a radiator. The back of the PCB circuit board is installed on the metal base plate, and the radiator is installed on the front of the PCB circuit board. The radiator is provided with an avoidance groove and an avoidance via. The avoidance groove is used to accommodate components on the front of the PCB circuit board, and the avoidance via is used to pass a cable connected to the PCB circuit board.

2. The antenna testing device according to claim 1, characterized in that: The radiator includes a heat dissipation base plate and a plurality of heat dissipation fins, wherein the plurality of heat dissipation fins are spaced apart on the top surface of the heat dissipation base plate, the bottom surface of the heat dissipation base plate is mounted on the front surface of the PCB circuit board, the avoidance groove is arranged on the bottom surface of the heat dissipation base plate, and the avoidance via passes through the bottom surface and the top surface of the heat dissipation base plate.

3. The antenna testing device according to claim 1, characterized in that: The metal bottom plate is provided with a step groove, and the step groove is used to accommodate and expose the circuit on the back side of the PCB circuit board.

4. The antenna testing device according to claim 3, characterized in that: The antenna testing device also includes a shielding plate, which is detachably mounted on the step groove, and the shielding plate covers the circuit on the back side of the PCB circuit board.

5. The antenna testing device according to claim 4, characterized in that: The shielding plate is provided with a fixing hole, and the antenna testing device further comprises a countersunk screw, which passes through the fixing hole and is threadedly connected to the metal bottom plate.

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