Radio frequency test device, radio frequency test equipment and radio frequency test system

Abstract

The invention relates to a radio frequency testing device, radio frequency testing equipment and a radio frequency testing system. The radio frequency testing device comprises a circuit board, two metal shells and a plurality of connector assemblies, each metal shell comprises a groove, the two metal shells are spliced to enable the two grooves to be communicated and form a containing cavity, the containing cavity is used for containing the circuit board, a plurality of through holes are formed in the splicing position of the two metal shells, and the connector assemblies are arranged in the through holes. The plurality of through holes are mutually spaced and are respectively communicated with the accommodating cavity; one end of each connector assembly is fixed to the circuit board, and the other end of each connector assembly penetrates through one through hole and extends to the outer side of the metal shell. The connector assembly of the radio frequency testing device extends out of the metal shells through the through hole formed by splicing the two metal shells, assembling of the radio frequency testing device is facilitated, the connector assembly is fixed to the circuit board in advance before assembling, assembling steps are reduced, and reliable connection between the circuit board and the connector assembly is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of radio frequency testing devices, and in particular to a radio frequency testing device, a radio frequency testing equipment and a radio frequency testing system. Background Art

[0002] The RF test device is connected to the external circuit through a connector. The shell of the RF test device is provided with a complete through hole. The connector of the external circuit passes through the through hole on the shell and extends into the shell, and then is welded to the circuit board. The solder at the welding point will affect the impedance at the connector, resulting in inaccurate test results. In addition, the solder needs to be removed during the disassembly and assembly of the RF test device after welding and the subsequent debugging, and the operation process is cumbersome. Summary of the invention

[0003] In view of the above-mentioned technical problems, the purpose of the present application is to provide a radio frequency testing device, a radio frequency testing equipment including the above-mentioned radio frequency testing device, and a radio frequency testing system including the above-mentioned radio frequency testing equipment, which specifically include the following technical solutions:

[0004] In a first aspect, an embodiment of the present application provides a radio frequency testing device, comprising a circuit board, two metal shells and a plurality of connector assemblies, each metal shell comprising a groove, the two metal shells being spliced ​​so that the two grooves are connected and form a accommodating cavity, the accommodating cavity being used to accommodate the circuit board, a plurality of through holes being formed at the joint of the two metal shells, the plurality of through holes being spaced apart from each other and respectively connected to the accommodating cavity; one end of each connector assembly is fixed to the circuit board, and the other end passes through a through hole and extends to the outside of the metal shell.

[0005] One end of the connector assembly of the radio frequency test device of the present application is fixed to the circuit board, and the other end extends out of the metal shell, which is convenient for the external circuit to be electrically connected to the circuit board. The through hole for extending the connector assembly of the radio frequency test device of the present application is formed by splicing two metal shells, which is convenient for assembling the radio frequency test device, and the connector assembly is pre-fixed to the circuit board before assembly, which reduces the assembly steps and ensures a reliable connection between the circuit board and the connector assembly.

[0006] In one embodiment, each connector assembly includes a connector and a fixing member, one end of each connector extends out of the metal housing, and the other end is fixed to the circuit board through the fixing member, wherein the fixing member is detachably connected to the circuit board.

[0007] In this embodiment, the connector is detachably connected to the circuit board via a fixing member, which facilitates the pre-installation of the connector and the circuit board, thereby reducing the overall assembly steps of the RF test device and improving assembly efficiency; at the same time, compared with connection via soldering, the impedance of the detachable connection is more stable and has less impact on the test results, thereby ensuring that the test results are more accurate.

[0008] In one embodiment, each connector assembly includes a fixing member, each fixing member is located on one side in the thickness direction of the circuit board, the fixing member and the circuit board are respectively provided with at least one first connecting hole and at least one second connecting hole, the inner wall of the first connecting hole is provided with a thread for cooperating with the screw connection member, and the screw connection member passes through the first connecting hole and the second connecting hole to fix the fixing member to the circuit board.

[0009] In this embodiment, the screw connection passes through the second connection hole of the circuit board and is threadedly connected to the first connection hole of the fixing member to fix the circuit board and the fixing member. Compared with connection through soldering, the circuit board and the fixing member connected by the screw connection are more convenient to disassemble, and the impedance at the connection is more stable, which has less impact on the test results, thereby ensuring that the test results are more accurate.

[0010] In one embodiment, the plurality of fixing members are located on the same side of the circuit board along the thickness direction of the circuit board.

[0011] In this embodiment, multiple fixings are located on the same side of the circuit board, that is, along the thickness direction of the circuit board. The overall thickness of the fixings and the circuit board is relatively small, which reduces the space occupied by the fixings and the circuit board, reduces the size of the required accommodating cavity, and is conducive to the miniaturization of the RF test device.

[0012] In one embodiment, each connector assembly includes two fixing members, which are arranged on opposite sides of the circuit board in the thickness direction, and the two fixing members clamp the circuit board along the thickness direction of the circuit board; each fixing member and the circuit board are respectively provided with at least one first connecting hole and at least one second connecting hole, and the inner wall of each first connecting hole is provided with a thread for cooperating with a screw connection member, and each screw connection member passes through the two first connecting holes and one second connecting hole to clamp and fix the circuit board between the two fixing members.

[0013] In this embodiment, the screw connector passes through the first connecting hole of a fixing member, the second connecting hole of the circuit board and the first connecting hole of another fixing member in sequence, so that the circuit board is clamped between the two fixing members. Compared with the connection through soldering, the circuit board and the fixing member connected by the screw connector are more convenient to disassemble, and the impedance of the connection is more stable, which has less impact on the test results, thereby ensuring that the test results are more accurate.

[0014] In one embodiment, at least one metal trace extending to the edge of the circuit board is provided on the circuit board, each fixing member includes two fixing portions spaced apart, the connector includes a pin extending to the gap between the two fixing portions, and after the fixing member is fixed to the circuit board, the two fixing members are located on both sides of the metal trace, and the pin is located on the circuit board and connected to the metal trace.

[0015] In this embodiment, the two fixing parts of the fixing member are spaced apart to leave a gap so that the pins of the connector and the metal traces of the circuit board are exposed, thereby facilitating the connection between the pins of the connector and the metal traces of the circuit board.

[0016] In one embodiment, at least one groove on the metal shell includes a first sub-groove, the first sub-groove is used to accommodate the fixing member, and along the thickness direction of the circuit board, the depth of the first sub-groove is greater than the depth of other parts of the groove.

[0017] In this embodiment, the metal shell includes a deeper first sub-groove for accommodating the fixing member so that the circuit board can be stably placed in the metal shell to avoid damage to the circuit board due to local excessive stress, thereby extending the service life of the RF test device.

[0018] In one embodiment, the first sub-groove extends along the arrangement direction of the plurality of joint assemblies, and the first sub-groove is used to accommodate the plurality of fixing members.

[0019] In this embodiment, the first sub-groove is used to accommodate the fixing parts of multiple connector assemblies so that the circuit board can be stably placed in the metal shell, avoiding damage to the circuit board due to excessive stress locally, thereby extending the service life of the RF test device.

[0020] In one embodiment, the groove of at least one metal shell includes a plurality of first sub-grooves, and each first sub-groove is used to accommodate at least one fixing member.

[0021] In this embodiment, the metal shell includes a plurality of first sub-grooves, each of which is used to accommodate a fixing member of at least one connector assembly, so that the circuit board can be stably placed in the metal shell, thereby preventing the circuit board from being damaged due to local excessive stress, thereby extending the service life of the RF testing device.

[0022] In one embodiment, at least one metal shell includes a plurality of avoidance holes arranged at intervals, each avoidance hole is located in the groove, and the depth of each avoidance hole is greater than the depth of the groove.

[0023] In this embodiment, the metal shell is provided with an avoidance hole, which is used to accommodate the end of the screw connector extending out of the fixing member, so that the circuit board can be placed stably in the metal shell, avoiding damage to the circuit board due to local excessive stress, thereby extending the service life of the RF testing device.

[0024] In one embodiment, the circuit board includes a power interface, each metal shell includes a power slot, and two power slots are spliced ​​to accommodate the power interface.

[0025] In this embodiment, two metal shells are spliced ​​to connect two power slots, and the connected power slots are used to accommodate the power interface of the circuit board, so that the circuit board can be placed stably in the metal shell, avoiding damage to the circuit board due to local excessive stress, thereby extending the service life of the RF testing device.

[0026] In one embodiment, each metal shell includes a plurality of threaded holes arranged at intervals, and the plurality of threaded holes of the two metal shells correspond to each other one by one and are used to pass screws or bolts, and the two metal shells are fixedly connected by the plurality of screws or bolts.

[0027] In this embodiment, each bolt or each screw is threadedly connected to the corresponding threaded holes of the two metal shells, so that the two metal shells are fixedly connected.

[0028] In one embodiment, the radio frequency testing device includes a plurality of metal sleeves, each of which is sleeved on a portion of a connector assembly extending outside a metal shell; wherein, along the axial direction of the through hole, each metal sleeve abuts against two metal shells, and along the radial direction of the through hole, the inner surface of the metal sleeve fits against the outer surface of the connector assembly.

[0029] In this embodiment, the metal sleeve is sleeved on the outside of the connector assembly, and the inner surface of the metal sleeve is in contact with the outer surface of the connector assembly to reduce the gap between the connector assembly and the through hole, improve the electromagnetic shielding effect of the metal shell, reduce the electromagnetic interference to the circuit board, and thus ensure the normal operation of the radio frequency testing device.

[0030] In a second aspect, an embodiment of the present application further provides a radio frequency testing device, including the above-mentioned radio frequency testing device.

[0031] In one embodiment, the radio frequency testing equipment includes a plurality of radio frequency testing devices, and the plurality of radio frequency testing devices are stacked and arranged along the thickness direction of the circuit board and fixedly connected.

[0032] In this embodiment, a plurality of RF testing devices are arranged along the thickness direction of the circuit board so that the connector of each RF testing device is exposed, which facilitates the connection between the external circuit and each RF testing device.

[0033] In one embodiment, each RF test device includes a plurality of ears, each ear is arranged on the outer side wall of the metal shell of the RF test device and extends along the plane direction of the circuit board. The multiple ears of two adjacent RF test devices stacked in a stacked manner correspond to each other one by one and are fixedly connected by bolts or screws.

[0034] In this embodiment, two adjacent RF test devices are fixedly connected via a plurality of lifting ears, each lifting ear extending along the plane direction of the circuit board to expose the interface of each RF test device, thereby facilitating the connection between the external circuit and each RF test device.

[0035] In a third aspect, an embodiment of the present application further provides a radio frequency testing system, comprising a testing instrument, a radio frequency device to be tested and the above-mentioned radio frequency testing equipment, wherein the radio frequency testing device of the radio frequency testing equipment is respectively connected to the testing instrument and the radio frequency device to be tested through a connector assembly.

[0036] It can be understood that the RF test equipment and RF test system of the present application ensure the reliable connection between the circuit board and the external circuit, improve the assembly efficiency, and reduce the disassembly and assembly steps during the debugging process because they adopt the above-mentioned RF test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the structure of a radio frequency testing device provided in one embodiment of the present application;

[0038] Figure 2 A partial cross-sectional schematic diagram of a partial structure of a radio frequency testing device provided in an embodiment of the present application;

[0039] Figure 3 This is a schematic structural diagram of a second metal shell provided in one embodiment of the present application;

[0040] Figure 4 A schematic structural diagram of a first metal shell provided in an embodiment of the present application from a perspective;

[0041] Figure 5 A schematic structural diagram of a first metal shell provided in an embodiment of the present application from another perspective;

[0042] Figure 6 A partial structural schematic diagram of a radio frequency testing device provided in an embodiment of the present application;

[0043] Figure 7 Another partial structural schematic diagram of a radio frequency testing device provided in one embodiment of the present application;

[0044] Figure 8 A structural schematic diagram showing a perspective of another partial structure of a radio frequency testing device provided in an embodiment of the present application;

[0045] Fig. 9 A partial cross-sectional schematic diagram of a radio frequency testing device provided in an embodiment of the present application;

[0046] Fig.10 Another partial cross-sectional schematic diagram of a radio frequency testing device provided in one embodiment of the present application;

[0047] Fig.11 It is another partial cross-sectional schematic diagram of a radio frequency testing device provided in one embodiment of the present application;

[0048] Fig.12 A structural schematic diagram of another partial structure of a radio frequency testing device provided in an embodiment of the present application from another perspective;

[0049] Fig.13 This is a partial structural schematic diagram of a radio frequency testing device provided in one embodiment of the present application having a metal sleeve;

[0050] Fig.14 A partial cross-sectional schematic diagram of a radio frequency testing device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0052] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0053] See also Figure 1-Figure 5 ,in, Figure 1 A schematic diagram of the structure of a radio frequency testing device 100 provided in an embodiment of the present application is illustrated; Figure 2 A partial cross-sectional schematic diagram illustrating a partial structure of a radio frequency testing device 100 provided in an embodiment of the present application; Figure 3 The structure diagram of the second metal shell 12 provided in one embodiment of the present application is illustrated; Figure 4 A structural schematic diagram of a first metal shell 11 provided in an embodiment of the present application from a viewing angle is illustrated; Figure 5 A structural schematic diagram of the first metal shell 11 provided in an embodiment of the present application from another perspective is illustrated.

[0054] The RF testing device 100 provided in the embodiment of the present application includes a circuit board 20, two metal shells 10 and a plurality of connector assemblies 30, each of the metal shells 10 includes a groove 101, and the two metal shells 10 are spliced ​​so that the two grooves 101 are connected to form a receiving cavity 105, and the receiving cavity 105 is used to receive the circuit board 20.

[0055] Specifically, in one embodiment, Figure 1 As shown, the radio frequency testing device 100 includes two metal shells 10, namely, a first metal shell 11 and a second metal shell 12. Figure 3-Figure 5 In the embodiment provided, the first metal shell 11 and the second metal shell 12 each include a groove 101. Figure 2 The first metal shell 11 and the second metal shell 12 are spliced ​​to connect the two grooves 101 and form a receiving cavity 105 , and the receiving cavity 105 is used to receive the circuit board 20 .

[0056] A plurality of through holes 104 are formed at the joint of the two metal shells 10 of the radio frequency testing device 100 provided in the embodiment of the present application. The plurality of through holes 104 are spaced apart from each other and are respectively connected to the accommodating chambers 105 .

[0057] Specifically, Figure 3-Figure 5 In the embodiment provided, the first metal shell 11 and the second metal shell 12 both include a plurality of notches 102. The plurality of notches 102 of each metal shell 10 are arranged on the side wall of the groove 101 along the edge of the metal shell 10 and are spaced apart from each other. Each notch 102 is connected to the groove 101. The plurality of notches 102 of the first metal shell 11 correspond to the plurality of notches 102 of the second metal shell 12 one by one. Figure 2 After the first metal shell 11 and the second metal shell 12 are spliced ​​together, a pair of corresponding notches 102 are spliced ​​together to form a through hole 104 , and each through hole 104 is connected to the accommodating cavity 105 .

[0058] One end of each connector assembly 30 of the RF testing device 100 provided in the embodiment of the present application is fixed to the circuit board 20, and the other end passes through a through hole 104 and extends to the outside of the metal shell 10, so as to be connected to the test instrument outside the metal shell 10 or the RF front-end module to be tested.

[0059] See also Figure 6 A partial structural diagram of a radio frequency testing device 100 provided in an embodiment of the present application is shown.

[0060] Specifically, in one embodiment, Figure 4 and Figure 6As shown, the circuit board 20 is located in the groove 101 of the first metal shell 11, one end of the multiple connector assemblies 30 is fixed to the edge of the circuit board 20, and the other end passes through a notch 102 located in the first metal shell 11 and extends to the outside of the first metal shell 11 in a direction away from the circuit board 20.

[0061] exist Figure 6 In the provided RF test device 100, the circuit board 20 is located in the groove 101 of the first metal shell 11. On this basis, the second metal shell 12 is buckled onto the circuit board 20, so that the first metal shell 11 and the second metal shell 12 can be spliced, the two grooves 101 are connected to form a accommodating cavity 105, and a pair of corresponding notches 102 are connected to form a through hole 104, thereby completing the assembly of the RF test device 100.

[0062] In the RF test device provided by the related art, a complete through hole is provided on the shell of the RF test device, and the connector of the external circuit extends into the shell through the through hole on the shell of the RF test device and is then welded to the circuit board, which makes the assembly of the RF test device more complicated.

[0063] In the RF test device 100 provided in the embodiment of the present application, the connector assembly 30 can be pre-fixed to the circuit board 20 before assembly. The connector assembly 30 extends to the outside of the metal shell 10 through the through hole 104, which facilitates the external circuit to be electrically connected to the circuit board 20 through the connector assembly 30, reduces the assembly steps of the RF test device 100, and ensures a reliable connection between the circuit board 20 and the connector assembly 30.

[0064] In addition, the through hole 104 for extending the connector assembly 30 of the RF test device 100 of the present application is formed by splicing a pair of notches 102 of two metal shells 10, which is convenient for assembling the RF test device 100 and disassembling the RF test device 100 during subsequent debugging. At the same time, after the two metal shells 10 are spliced, the circuit board 20 is placed in the accommodating cavity 105 and is surrounded by the metal shells 10 on all sides, which has a better electromagnetic shielding effect, thereby improving the test accuracy of the RF test device 100 of the present application.

[0065] In one embodiment, each connector assembly 30 includes a connector 31 and a fixing member 32, one end of each connector 31 extends out of the metal housing 10, and the other end is fixed to the circuit board 20 through the fixing member 32, wherein the fixing member 32 is detachably connected to the circuit board 20. Each connector 31 is detachably connected to the circuit board 20 through the fixing member 32, which facilitates the pre-installation of the connector 31 and the circuit board 20, thereby reducing the overall assembly steps of the RF test device 100 and improving the assembly efficiency; at the same time, compared with the RF test device in the related art that connects the connector and the circuit board by soldering, the impedance of the detachable connection between the connector 31 and the circuit board 20 of the RF test device 100 provided in the embodiment of the present application is more stable, and has less impact on the test results, thereby ensuring that the test results are more accurate.

[0066] See also Figure 7 and Figure 8 ,in, Figure 7 Another partial structural diagram of a radio frequency testing device 100 provided in an embodiment of the present application is illustrated; Figure 8 A structural schematic diagram from a perspective of another partial structure of a radio frequency testing device 100 provided in an embodiment of the present application is illustrated.

[0067] In one embodiment, if Figure 7 and Figure 8 As shown, a connector assembly 30 includes two fixing members 32 and a connector 31. The two fixing members 32 are respectively located on opposite sides of the circuit board 20 along its own thickness direction. The two fixing members 32 are clamped and fixed to the circuit board 20 by a screw member 33. One of the fixing members 32 is fixedly connected to the connector 31 to fix the connector 31 to the circuit board 20.

[0068] In one embodiment, each connector assembly 30 includes a fixing member 32, each fixing member 32 is located on one side in the thickness direction of the circuit board 20, the fixing member 32 and the circuit board 20 are respectively provided with at least one first connecting hole 321 and at least one second connecting hole 201, the inner wall of the first connecting hole 321 in the fixing member 32 is provided with a thread for cooperating with the screw connection member 33, the screw connection member 33 passes through the first connecting hole 321 and the second connecting hole 201 to fix the fixing member 32 to the circuit board 20.

[0069] See also Fig. 9 A partial cross-sectional diagram of a radio frequency testing device 100 provided in an embodiment of the present application is shown.

[0070] In one embodiment, if Fig. 9As shown, a fixing member 32 is located on one side of the circuit board 20 along its thickness direction, the inner wall of the first connecting hole 321 is provided with a thread, the head of the screw-in member 33 is located on the side of the circuit board 20 away from the fixing member 32, the rod of the screw-in member 33 is provided with a thread, one end of the rod is fixed to the head, and the other end passes through the second connecting hole 201 and is threadedly connected to the first connecting hole 321, so that the fixing member 32 is fixed to the circuit board 20, thereby fixing the joint 31 and the circuit board 20.

[0071] See also Fig.10 Another partial cross-sectional schematic diagram of a radio frequency testing device 100 provided in an embodiment of the present application is shown.

[0072] In one embodiment, if Fig.10 As shown, a fixing member 32 and a nut 34 are respectively located on opposite sides of the circuit board 20 along its own thickness direction, and the head of the screw connector 33 is located on the side of the fixing member 32 away from the circuit board 20. The rod of the screw connector 33 is provided with a thread, one end of the rod is fixed to the head, and the other end passes through the first connecting hole 321 and the second connecting hole 201 in sequence, and is threadedly connected with the nut 34 on the other side of the circuit board 20, so that the fixing member 32 is fixed to the circuit board 20, thereby fixing the joint 31 and the circuit board 20.

[0073] In one embodiment, the fixing members 32 in each connector assembly 30 are located on the same side of the circuit board 20 along its own thickness direction, so that along the thickness direction of the circuit board 20, the overall thickness formed by the fixing members 32 and the circuit board 20 is smaller, thereby reducing the space occupied by the fixing members 32 and the circuit board 20, thereby reducing the size of the required accommodating cavity 105, which is conducive to the miniaturization of the RF testing device 100.

[0074] In one embodiment, each connector assembly 30 includes a fixing member 32, and the fixing member 32 includes two fixing portions 322. The two fixing portions 322 are located on the same side of the circuit board 20 in the thickness direction and are arranged at intervals along the plane direction of the circuit board 20. The two fixing portions 322 are fixedly connected to the connector 31. Each fixing portion is provided with a first connecting hole 321, and the inner wall of the first connecting hole 321 is provided with a thread. The head of the screw connector 33 is located on the side of the circuit board 20 away from the fixing portion 322. The rod of the screw connector 33 is provided with a thread, one end of the rod is fixed to the head, and the other end passes through the second connecting hole 201 and is threadedly connected to the first connecting hole 321, so that each fixing portion 322 is fixed to the circuit board 20, thereby fixing the connector 31 and the circuit board 20.

[0075] In one embodiment, each connector assembly 30 includes two fixing members 32, and the two fixing members 32 are arranged on opposite sides of the thickness direction of the circuit board 20, and the two fixing members 32 clamp the circuit board 20 along the thickness direction of the circuit board 20; each fixing member 32 and the circuit board 20 are respectively provided with at least one first connecting hole 321 and at least one second connecting hole 201, and the inner wall of each first connecting hole 321 is provided with a thread for cooperating with the screw connection member 33, and each screw connection member 33 passes through the two first connecting holes 321 and one second connecting hole 201 to clamp and fix the circuit board 20 between the two fixing members 32.

[0076] See also Fig.11 A partial cross-sectional diagram of another embodiment of the radio frequency testing device 100 provided in the present application is shown.

[0077] In one embodiment, if Fig.11 As shown, the two fixing members 32 are respectively located on opposite sides of the circuit board 20 along its own thickness direction, the head of the screw member 33 is located on the side of a fixing member 32 away from the circuit board 20, the rod of the screw member 33 is provided with a thread, one end of the rod is fixed to the head, and the other end passes through a first connecting hole 321 and a second connecting hole 201 in sequence, and is threadedly connected to the other first connecting hole 321, so that the circuit board 20 is clamped and fixed between the two fixing members 32, thereby fixing the joint 31 and the circuit board 20.

[0078] In another embodiment, the first connecting holes 321 of the two fixing members 32 are not provided with threads, and the two fixing members 32 are respectively located on opposite sides of the circuit board 20 along its own thickness direction. The head of the screw connector 33 is located on the side of a fixing member 32 away from the circuit board 20, and the rod of the screw connector 33 is provided with threads. One end of the rod is fixed to the head, and the other end passes through a first connecting hole 321, a second connecting hole 201 and another first connecting hole 321 in sequence, and is threadedly connected to the nut 34 on the other side of the circuit board 20, so that the circuit board 20 is clamped and fixed between the two fixing members 32, thereby fixing the joint 31 and the circuit board 20.

[0079] In one embodiment, each connector assembly 30 includes two fixing members 32, and the two fixing members 32 are arranged on opposite sides of the thickness direction of the circuit board 20. Each fixing member 32 includes two fixing portions 322, and the two fixing portions 322 are arranged at intervals along the plane direction of the circuit board 20. Each fixing portion 322 includes a first connecting hole 321. The two fixing portions 322 located on one side of the circuit board 20 are respectively aligned one by one with the two fixing portions 322 located on the other side of the circuit board 20 along the plane direction of the circuit board 20. The head of the screw connector 33 is located on the side of a fixing portion 322 away from the circuit board 20. The rod of the screw connector 33 is provided with a thread, one end of the rod is fixed to the head, and the other end passes through a first connecting hole 321 and a second connecting hole 201 of a fixing portion 322 in sequence, and is threadedly connected to the first connecting hole 321 of another aligned fixing portion 322, so that the circuit board 20 is clamped and fixed between the two fixing portions 322, thereby fixing the connector 31 and the circuit board 20.

[0080] It should be pointed out that, in addition to the above-mentioned embodiments, the embodiments of the present application can also set any number of fixing parts 322 according to the requirements of products and devices, and each fixing part 322 can be fixed to the circuit board 20 through the connection method in the above-mentioned embodiments, thereby fixing the connector 31 and the circuit board 20.

[0081] Understandably, in Figure 9-11 In the provided radio frequency test device 100, the screw connector 33 passes through the second connection hole 201 of the circuit board 20 and the first connection hole 321 of the fixing member 32, and the screw connector 33 is threadedly connected to the first connection hole 321 or to the nut 34, so that the fixing member 32 is fixedly connected to the circuit board 20. Compared with the connection through soldering, the circuit board 20 and the fixing member 32 connected by the screw connector 33 are more convenient to disassemble, and the impedance of the connection is more stable, which has less impact on the test results, thereby ensuring more accurate test results.

[0082] In one embodiment, if Fig.12 As shown, the circuit board 20 is provided with at least one metal trace 22 extending to the edge of the circuit board 20, each fixing member 32 includes two fixing portions 322 arranged at intervals, and the connector 31 includes a pin 311, and the pin 311 extends to the gap between the two fixing portions 322. After the fixing member 32 is fixed to the circuit board 20, the two fixing portions 322 are located on both sides of the metal trace 22, and the pin 311 is located on the circuit board 20 and connected to the metal trace 22.

[0083] In one embodiment, at least one metal trace 22 extending to the edge of the circuit board 20 is provided on the circuit board 20, and each connector assembly 30 includes a fixing member 32, and each fixing member 32 includes two fixing portions 322, and the two fixing portions 322 are located on the same side in the thickness direction of the circuit board 20, and are arranged at intervals along the plane direction of the circuit board 20, and the two fixing portions 322 are fixedly connected to the connector 31. The connector 31 includes a pin 311, and the pin 311 extends to the gap between the two fixing portions 322. After the fixing member 32 is fixed to the circuit board 20, the two fixing portions 322 are located on both sides of the metal trace 22, and the pin 311 is located on the circuit board 20 and connected to the metal trace 22.

[0084] In one embodiment, each connector assembly 30 includes two fixing members 32, which are arranged on opposite sides of the circuit board 20 in the thickness direction, and each fixing member 32 includes two fixing portions 322, which are arranged at intervals along the plane direction of the circuit board 20, wherein the two fixing portions 322 located on the same side of the circuit board 20 are respectively fixedly connected to the connector 31. The connector 31 includes a pin 311, which extends between the two fixing portions 322 fixedly connected to the connector 31. After the fixing member 32 is fixed to the circuit board 20, the pin 311 is located on the circuit board 20 and connected to the metal trace 22.

[0085] In one embodiment, the connector 31 includes two pins 311, each pin 311 is spaced apart from each other along the thickness direction of the circuit board 20, and two surfaces on opposite sides in the thickness direction of the circuit board 20 are provided with at least one metal trace 22 extending to the edge of the circuit board 20. After the fixing member 32 is fixed to the circuit board 20, the two pins 311 are respectively located on two surfaces on opposite sides in the thickness direction of the circuit board 20, and each pin 311 is connected to a metal trace 22.

[0086] In one embodiment, at least one groove 101 on the metal shell 10 includes a first sub-groove 1011, and the first sub-groove 1011 is used to accommodate the fixing member 32. Along the thickness direction of the circuit board 20, the depth of the first sub-groove 1011 is greater than the depth of other parts of the groove 101. That is, the first sub-groove 1011 accommodates the fixing member 32, and the other parts of the groove 101 accommodate the circuit board 20, so that the circuit board 20 can be stably placed in the metal shell 10 to avoid shaking of the circuit board 20, and the parts where the circuit board 20 contacts the metal shell 10 are evenly stressed, so that the circuit board 20 is prevented from being damaged due to excessive stress locally, thereby extending the service life of the radio frequency test device 100.

[0087] In one embodiment, the first sub-groove 1011 extends along the arrangement direction of the plurality of connector assemblies 30 , and the first sub-groove 1011 is used to accommodate the plurality of fixing members 32 , so that the circuit board 20 can be stably placed in the metal housing 10 .

[0088] In another embodiment, the groove 101 of at least one metal shell 10 includes a plurality of first sub-grooves 1011 , and each first sub-groove 1011 is used to accommodate at least one fixing member 32 , so that the circuit board 20 can be stably placed in the metal shell 10 .

[0089] In one embodiment, if Figure 4 and Figure 5 As shown, the first metal shell 11 includes three first sub-grooves 1011, and the three first sub-grooves 1011 are arranged along the plane direction of the circuit board 20 and spaced from each other. The projection of each first sub-groove 1011 on the circuit board 20 covers multiple fixing members 32, and the depth of each first sub-groove 1011 is greater than the other parts of the groove 101, that is, each first sub-groove 1011 can be used to accommodate multiple fixing members 32, and the other parts of the groove 101 accommodate the circuit board 20, so that the circuit board 20 can be stably placed in the metal shell 10 to avoid shaking of the circuit board 20, and the parts where the circuit board 20 contacts the metal shell 10 are evenly stressed, so as to avoid damage to the circuit board 20 due to excessive stress locally, thereby extending the service life of the RF testing device 100.

[0090] Understandably, except Figure 4 and Figure 5 In addition to the provided embodiments, the embodiments of the present application may also set any number of first sub-grooves 1011 according to the specific arrangement and position of the circuit board 20 and the connector assembly 30 .

[0091] In one embodiment, multiple fixing members 32 are located on the same side of the circuit board 20 along its own thickness direction, and a groove 101 of a metal shell 10 includes a first sub-groove 1011 for accommodating multiple fixing members 32, which can also enable the circuit board 20 to be stably placed in the metal shell 10.

[0092] In another embodiment, the two fixing members 32 of each connector assembly 30 clamp and fix the circuit board 20, and the grooves 101 of the two metal shells 10 both include a first sub-groove for accommodating multiple fixing members 32, which can also enable the circuit board 20 to be stably placed in the metal shell 10.

[0093] In one embodiment, at least one metal shell 10 includes a plurality of avoidance holes 103 arranged at intervals, each avoidance hole 103 is located in the groove 101, and the depth of each avoidance hole 103 is greater than the depth of the groove 101. The avoidance hole 103 is used to accommodate the end of the screw connection 33 extending out of the fixing member 32, and can also enable the circuit board 20 to be stably placed in the metal shell 10 to avoid the circuit board 20 from shaking, and make the contact part of the circuit board 20 and the metal shell 10 evenly stressed, so as to avoid the circuit board 20 from being damaged due to excessive stress locally, thereby extending the service life of the radio frequency testing device 100.

[0094] In one embodiment, if Figure 4 and Figure 5 As shown, a plurality of avoidance holes 103 are arranged at intervals along the planar direction of the circuit board 20, the depth of each avoidance hole 103 is greater than the depth of the groove 101, and each avoidance hole 103 along the planar direction of the circuit board 20 is used to align with a screw connection 33 so that the head and the rod of the screw connection 33 extend into a avoidance hole 103 respectively, so that the circuit board 20 can be stably placed in the metal shell 10.

[0095] In one embodiment, if Figure 7 As shown, the circuit board 20 includes a power interface 21. Figure 3-Figure 5 Each metal shell 10 includes a power slot 106 , and two metal shells 10 are spliced ​​to connect the two power slots 106 . The two connected power slots 106 are used to accommodate the power interface 21 so that the circuit board 20 can be stably placed in the metal shell 10 .

[0096] See also Fig.12 A structural schematic diagram illustrating another partial structure of a radio frequency testing device 100 provided in an embodiment of the present application from another perspective.

[0097] In one embodiment, if Fig.12 As shown, the fixing member 32 includes two fixing parts 322, both of which are fixed to the connector 31, and the two fixing parts 322 are spaced apart from each other along the plane direction of the circuit board 20 to leave a gap, and the connector 31 includes a pin 311, one end of which extends into the gap between the two fixing parts 322. After the fixing member 32 is fixed to the circuit board 20, the metal trace 22 on the circuit board 20 is located in the gap between the two fixing parts 322 and is electrically connected to the pin 311, so that the connector 31 is connected to the internal circuit of the circuit board 20. The two fixing parts 322 of the fixing member 32 are spaced apart to leave a gap, so that the pin 311 of the connector 31 and the metal trace 22 of the circuit board 20 are exposed, which facilitates the connection between the pin 311 of the connector 31 and the metal trace 22 of the circuit board 20.

[0098] In one embodiment, each metal shell 10 includes a plurality of threaded holes 107 arranged at intervals, and the plurality of threaded holes 107 of the two metal shells 10 correspond to each other one by one and are used to pass screws or bolts, and the two metal shells 10 are fixedly connected by the plurality of screws or bolts.

[0099] In one embodiment, if Figure 3 and Figure 4 As shown, the first metal shell 11 and the second metal shell 12 both include a plurality of threaded holes 107 arranged at intervals. The plurality of threaded holes 107 of the first metal shell 11 and the plurality of threaded holes 107 of the second metal shell 12 are both distributed at least at the four corners of the metal shell 10. The plurality of threaded holes 107 of the first metal shell 11 correspond one to one with the plurality of threaded holes 107 of the second metal shell 12. Bolts or screws are used to pass through the corresponding pair of threaded holes 107 respectively to fix the first metal shell 11 and the second metal shell 12 in connection.

[0100] It should be pointed out that, in addition to the above-mentioned embodiments, the multiple threaded holes 107 of the metal shell 10 can also be arranged along the edge of the first metal shell 11, and the multiple threaded holes 107 of the second metal shell 12 can also be arranged along the edge of the second metal shell 12. The specific number and position of the threaded holes 107 of each metal shell 10 can be set based on the requirements of the product and the device, thereby fixing the two metal shells 10.

[0101] In one embodiment, the RF test device 100 further includes a plurality of metal sleeves 40, each of which is sleeved on a portion of a connector assembly 30 extending outside the metal shell 10; wherein, along the axial direction of the through hole 104, each metal sleeve 40 abuts against two metal shells 10, and along the axial direction of the through hole 104, the inner surface of the metal sleeve 40 fits with the outer surface of the connector assembly 30. The metal sleeve 40 is sleeved on the outside of the connector assembly 30, and the inner surface of the metal sleeve 40 fits with the outer surface of the connector assembly 30 to reduce the gap between the connector assembly 30 and the through hole 104, improve the electromagnetic shielding effect of the metal shell 10, reduce the electromagnetic interference of the circuit board 20, and thereby ensure the normal operation of the RF test device 100.

[0102] See also Fig.13 A schematic diagram of a partial structure of a radio frequency testing device 100 provided in an embodiment of the present application having a metal sleeve 40 is shown.

[0103] In one embodiment, if Fig.13As shown, one end of the connector 31 passes through the through hole 104 and extends to the outside of the first metal shell 11 and the second metal shell 12. The outer surface of the connector 31 is provided with a thread. The inner wall of the metal sleeve 40 is provided with a thread matching the connector 31 and is sleeved on the outside of the connector 31 and threadedly connected with the connector 31, so that the metal sleeve 40 is fixed to the connector 31. Along the axial direction of the through hole 104, one end of the metal sleeve 40 abuts against the first metal shell 11 and the second metal shell 12 respectively, which is used to shield at least part of the gap between the connector 31 and the through hole 104, improve the electromagnetic shielding effect of the first metal shell 11 and the second metal shell 12, reduce the electromagnetic interference of the circuit board 20 in the accommodating cavity 105, and thus ensure the normal operation of the radio frequency test device 100.

[0104] In one embodiment, the outer diameter of the metal sleeve 40 is greater than or equal to the diameter of the through hole 104, that is, the metal sleeve 40 completely covers the gap between the connector 31 and the through hole 104, further improving the electromagnetic shielding effect of the first metal shell 11 and the second metal shell 12, reducing the electromagnetic interference to the circuit board 20 in the accommodating cavity 105, and thus ensuring the normal operation of the RF testing device 100.

[0105] In one embodiment, the RF testing device 200 includes a plurality of RF testing devices 100, which are stacked and arranged along the thickness direction of the circuit board 20 and fixedly connected. Figure 1 and Figure 6 , the extension direction of each connector assembly 30 intersects with the thickness direction of the circuit board 20, and when multiple RF test devices 100 are stacked and arranged along the thickness direction of the circuit board 20, the connectors 31 of different RF test devices 100 are located at different heights, so that they will not contact each other, thereby avoiding mutual influence between multiple RF test devices 100. In addition, this also makes it easier for the external circuit to be connected to multiple RF test devices 100 through the connector 31 at the same time.

[0106] In one embodiment, each RF test device 100 includes a plurality of ears 111, each ear 111 is arranged on the outer wall of the metal shell 10 and extends along the plane direction of the circuit board 20, and the plurality of ears 111 of two adjacent RF test devices 100 stacked correspond to each other one by one and are fixedly connected by bolts or screws.

[0107] In one embodiment, if Figure 1 and Figure 4As shown, the first metal shell 11 includes four lifting ears 111, each lifting ear 111 extends along the plane direction of the circuit board 20, and each lifting ear 111 includes a lifting hole 112, and the lifting hole 112 extends along the thickness direction of the circuit board 20. A plurality of RF test devices 100 are arranged along the thickness direction of the circuit board 20, and the lifting ears 111 of two adjacent RF test devices 100 correspond to each other one by one, and a corresponding pair of lifting ears 111 are fixedly connected to fix the two adjacent RF test devices 100.

[0108] Understandably, except Figure 1 and Figure 4 In addition to the provided embodiments, the embodiments of the present application may also provide any number of hanging ears 111 to connect two adjacent RF testing devices 100 according to the requirements of products and devices.

[0109] See also Fig.14 A partial cross-sectional diagram of a radio frequency testing device 200 provided in an embodiment of the present application is shown.

[0110] In one embodiment, if Fig.14 As shown, the RF test device 200 includes a connecting column 52, one end of which is provided with a third connecting hole 521, the inner wall of the third connecting hole 521 is provided with a thread, and the other end of the connecting column 52 is provided with a protrusion 522, and the outer surface of the protrusion 522 is provided with a thread. Each connecting column 52 is located between two adjacent RF test devices 100, and the protrusion 522 of one connecting column 52 passes through the hanging hole 112 of a hanging ear 111 and extends into the third connecting hole 521 of another connecting column 52, so that the two connecting columns 52 clamp and fix the RF test device 100.

[0111] It can be understood that one of the two RF test devices 100 located at both ends passes through the hanging hole 112 through the bolt 51 and extends into the third connecting hole 521 and is threadedly connected to the third connecting hole 521, so that the RF test device 100 located at one end is fixed to the connecting column 52, and the other passes through the hanging hole 112 through the protrusion 522 of the connecting column 52 and is threadedly connected to the nut 34, so that the RF test device 100 located at the other end is fixed to the connecting column 52.

[0112] The embodiment of the present application further provides a radio frequency testing device 200 , and the radio frequency testing device 200 includes a radio frequency testing apparatus 100 .

[0113] The embodiment of the present application also provides a radio frequency test system, which includes a test instrument, a radio frequency device to be tested, and a radio frequency test device 200. Exemplarily, the radio frequency device to be tested may be a radio frequency front-end module. Exemplarily, the test instrument may include but is not limited to one or more of a signal source, a signal receiver, a vector network analyzer, a spectrum analyzer, and the like.

[0114] The radio frequency testing device 200 and the radio frequency testing system provided in the embodiment of the present application ensure the reliable connection between the circuit board 20 and the external circuit, improve the assembly efficiency, and reduce the disassembly and assembly steps in the debugging process.

[0115] It should be pointed out that the RF test device 100 provided in the embodiment of the present application is not only applicable to the RF test equipment 200 and the RF test system, but also in other devices and systems that need to transmit RF signals. The RF test device 100 provided in the embodiment of the present application is also applicable, and has higher assembly efficiency and fewer disassembly and assembly steps. In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A radio frequency testing device, characterized in that: It comprises a circuit board, two metal shells and a plurality of connector assemblies, each of the metal shells comprises a groove, the two metal shells are spliced ​​so that the two grooves are connected to form a receiving cavity, the receiving cavity is used to receive the circuit board, a plurality of through holes are formed at the splicing of the two metal shells, the plurality of through holes are spaced apart from each other and are respectively connected to the receiving cavity; One end of each connector assembly is fixed to the circuit board, and the other end passes through one of the through holes and extends to the outside of the metal shell.

2. The radio frequency testing device according to claim 1, characterized in that: Each of the connector assemblies comprises a connector and a fixing member, one end of each of the connectors extends out of the metal shell, and the other end is connected to the circuit board through the fixing member, wherein the fixing member is detachably connected to the circuit board.

3. The radio frequency testing device according to claim 2, characterized in that: Each of the connector assemblies comprises a fixing member, each of the fixing members is located on one side in the thickness direction of the circuit board, the fixing member and the circuit board are respectively provided with at least one first connecting hole and at least one second connecting hole, the inner wall of the first connecting hole is provided with a thread for cooperating with a screw connection member, the screw connection member passes through the first connecting hole and the second connecting hole to fix the fixing member to the circuit board.

4. The radio frequency testing device according to claim 3, characterized in that: The plurality of fixing members are located on the same side of the circuit board along its thickness direction.

5. The radio frequency testing device according to claim 2, characterized in that: Each of the connector components comprises two fixing members, which are arranged at opposite sides of the circuit board in the thickness direction, and the two fixing members clamp the circuit board in the thickness direction of the circuit board; Each of the fixing members and the circuit board is respectively provided with at least one first connecting hole and at least one second connecting hole, the inner wall of each of the first connecting holes is provided with a thread for cooperating with a screw connection member, and each of the screw connection members passes through two of the first connecting holes and one of the second connecting holes to clamp and fix the circuit board between the two fixing members.

6. The radio frequency testing device according to claim 2, characterized in that: The circuit board is provided with at least one metal trace extending to the edge of the circuit board, each of the fixing parts includes two fixing parts arranged at intervals, the connector includes a pin, and the pin extends to the gap between the two fixing parts. After the fixing part is fixed to the circuit board, the two fixing parts are located on both sides of the metal trace, and the pin is located on the circuit board and connected to the metal trace.

7. The radio frequency testing device according to claim 2, characterized in that: The groove on at least one of the metal shells includes a first sub-groove, and the first sub-groove is used to accommodate the fixing member. Along the thickness direction of the circuit board, the depth of the first sub-groove is greater than the depth of other parts of the groove.

8. The radio frequency testing device according to claim 7, characterized in that: The first sub-groove extends along the arrangement direction of the plurality of joint assemblies, and the first sub-groove is used to accommodate the plurality of fixing members.

9. The radio frequency testing device according to claim 7, characterized in that: The groove of at least one of the metal shells includes a plurality of the first sub-grooves, and each of the first sub-grooves is used to accommodate at least one of the fixing members.

10. The radio frequency testing device according to any one of claims 1 to 9, characterized in that: At least one of the metal shells includes a plurality of avoidance holes arranged at intervals, each of the avoidance holes is located in the groove, and the depth of each of the avoidance holes is greater than the depth of the groove.

11. The radio frequency testing device according to any one of claims 1 to 9, characterized in that: The circuit board includes a power interface, each of the metal shells includes a power slot, and two of the power slots are spliced ​​to accommodate the power interface.

12. The radio frequency testing device according to any one of claims 1 to 9, characterized in that: Each of the metal shells includes a plurality of threaded holes arranged at intervals, and the plurality of threaded holes of the two metal shells correspond to each other one by one and are used for passing screws or bolts.

13. The radio frequency testing device according to any one of claims 1 to 9, characterized in that: The radio frequency testing device comprises a plurality of metal sleeves, each of which is sleeved on a portion of the connector assembly extending outside the metal shell; Wherein, along the axial direction of the through hole, each of the metal sleeves abuts against the two metal shells, and along the radial direction of the through hole, the inner surface of the metal sleeve fits against the outer surface of the joint assembly.

14. A radio frequency testing device, characterized in that: Comprising a radio frequency testing device as described in any one of claims 1-13.

15. The radio frequency testing device according to claim 14, characterized in that: The radio frequency testing equipment comprises a plurality of radio frequency testing devices, and the plurality of radio frequency testing devices are stacked and arranged along the thickness direction of the circuit board and fixedly connected.

16. The radio frequency testing device according to claim 15, characterized in that: Each of the RF test devices includes a plurality of lifting ears, each of which is arranged on the outer side wall of the metal shell of the RF test device and extends along the plane direction of the circuit board. The plurality of lifting ears of two adjacent RF test devices stacked in a stack correspond to each other one by one and are fixedly connected by bolts or screws.

17. A radio frequency testing system, characterized in that: It comprises a test instrument, a radio frequency device to be tested and the radio frequency test equipment as described in any one of claims 14 to 16, wherein the radio frequency test device of the radio frequency test equipment is respectively connected to the test instrument and the radio frequency device to be tested through a connector assembly.

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