Mounting structure of PXI switch module

Abstract

The utility model discloses an installation structure of a PXI switch module, the PXI switch module comprises a plurality of radio frequency coaxial switches, a first PCB and a second PCB, the installation structure comprises a back plate and a groove plate, the groove plate is vertically and fixedly installed at the bottom end of the back plate through a fixing piece, the plurality of radio frequency coaxial switches are respectively and fixedly installed above the groove plate, and the first PCB and the second PCB are fixedly installed on the groove plate. The first PCB is fixedly installed at the bottom end of the back plate and located between the back plate and the radio frequency coaxial switch, the radio frequency coaxial switch is inserted into the first PCB, and the second PCB is fixed to the top end of the first PCB and penetrates through the top end of the first PCB to be fixed to the top end of the back plate. According to the PXI switch module, the groove plate and the back plate are vertically and fixedly installed through the fixing piece, the radio frequency coaxial switches can be parallel to the first PCB and fixedly installed on the groove plate, at the moment, the multiple radio frequency coaxial switches can be installed in front of the first PCB, the installation space is saved, and the whole PXI switch module is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of PXI switch modules, in particular to an installation structure of a PXI switch module. Background Art

[0002] PXI chassis can be compatible with PXI switch modules that meet the PXI specification. PXI (PCIeXtensionsforInstrumentation) is an extension of PCI in the field of instrumentation. PXI (PCI Extensions for Instrumentation) is a stable PC-based platform for measurement and automation systems. PXI integrates the speed and performance of the PCI bus with advanced timing and synchronization features in a stable, modular CompactPCI Eurocard package.

[0003] Multiple PXI switch modules can be integrated in a PXI chassis, but the internal space of the PXI chassis is limited. In order to achieve the miniaturization of the PXI chassis, the size of each PXI switch module needs to be reduced. Therefore, how to reasonably deploy the installation structure of each component in the PXI switch module to make the installation structure of the entire PXI switch module more compact is a problem that needs to be solved. Utility Model Content

[0004] The utility model aims to provide a PXI switch module installation structure, which can reduce the size of each PXI switch module by reasonably setting the installation layout, so as to adapt to the miniaturized PXI chassis.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A mounting structure of a PXI switch module, the PXI switch module comprises a plurality of radio frequency coaxial switches, a first PCB board and a second PCB board, the mounting structure comprises a back plate and a slot plate, the slot plate is vertically fixedly mounted on the bottom end of the back plate by a fixing member, a plurality of radio frequency coaxial switches are respectively fixedly mounted above the slot plate, the first PCB board is fixedly mounted on the bottom end of the back plate and is located between the back plate and the radio frequency coaxial switch, the radio frequency coaxial switch is plugged into the first PCB board, and the second PCB board is fixed on the top end of the first PCB board and passes through the top end of the first PCB board and is fixed to the top end of the back plate.

[0007] In some optional embodiments, the fixing member includes a first mounting block and a second mounting block that are integrally formed, the first mounting block is fixed to the bottom end of the back plate, and the second fixing block is fixed to the end of the slot plate.

[0008] In some optional embodiments, the first mounting block and the second mounting block are connected in a Z shape and are clamped on the radio frequency coaxial switch at the end of the slot plate.

[0009] In some optional embodiments, the RF coaxial switch includes a shell, and the circuit components of the RF coaxial switch are installed inside the shell. The shell is plugged into a first PCB board, and a first port and a second port are respectively opened at both ends of the shell. The first port passes through the slot plate and is located below the slot plate. The shell is fixedly installed above the slot plate, and the second port is connected to the second PCB board.

[0010] In some optional implementations, the second port is connected to the second PCB board via a J30J-9ZJ connector.

[0011] In some optional embodiments, a flange seat is provided between the shell and the slot plate, the shell and the flange seat are integrally formed, and mounting bolts are provided at the four corners of the flange seat to fix the shell above the slot plate.

[0012] In some optional embodiments, the shell is a cylindrical structure.

[0013] In some optional embodiments, studs are provided between both ends of the bottom of the second PCB board and the first PCB board, one end of the stud is threadedly connected and fixed to the second PCB board, and the other end is threadedly connected to the first PCB board.

[0014] In some optional embodiments, a handle is installed under the slot plate.

[0015] In some optional implementations, a plurality of radio frequency coaxial switches are closely arranged and installed along the length direction of the slot plate.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a mounting structure of a PXI switch module. By vertically fixing a slot plate and a back plate through a fixing piece, a radio frequency coaxial switch can be fixedly mounted on the slot plate parallel to a first PCB. At this time, a plurality of radio frequency coaxial switches can be mounted in front of the first PCB board, the radio frequency coaxial switch is inserted into the first PCB, and the second PCB board can be mounted on the first PCB board, thus saving the mounting space and making the installation of the entire PXI switch module more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the installation structure provided for an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A front view of

[0020] Figure 3 for Figure 1 Rear view of

[0021] Figure 4 for Figure 1 Bottom view of

[0022] Figure 5 A schematic diagram of the structure of a fixing member provided in an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the installation structure from another viewing angle provided for an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1-back plate, 2-slot plate, 3-fixing part, 31-first mounting block, 32-second mounting block, 4-RF coaxial switch, 41-housing, 42-flange seat, 43-connector, 44-first port, 5-first PCB board, 6-second PCB board, 7-stud, 8-handle. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0027] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0030] Embodiment 1:

[0031] like Figures 1 to 6As shown, this embodiment provides an installation structure of a PXI switch module, wherein the PXI switch module generally includes a plurality of RF coaxial switches 4, a first PCB board 5 and a second PCB board 6, the installation structure includes a backplane 1 and a slot board 2, the slot board 2 is vertically fixedly installed at the bottom end of the backplane 1 through a fixing member 3, a plurality of RF coaxial switches 4 are respectively fixedly installed above the slot board 2, and a plurality of RF coaxial switches are closely arranged and installed along the length direction of the slot board 2, the first PCB board 5 is fixedly installed at the bottom end of the backplane 1 and is located between the backplane 1 and the RF coaxial switch 4, the RF coaxial switch 4 is plugged into the first PCB board 5, and the second PCB board 6 is fixed at the top end of the first PCB board 5 and passes through the top end of the first PCB board 5 and is fixed to the top end of the backplane 1.

[0032] like Figure 1 As shown, both sides of the first PCB board 5 are provided with threaded holes, and the first PCB board 5 is bolted to the back plate 1. After all PXI switch modules are fixed to the mounting structure, the entire structure is mounted on the back plate 1 of the PXI chassis.

[0033] The focus of this application is on how to install and integrate the components of the PXI switch module to make the entire structure compact. The specific circuit composition and working principle of each part of the PXI switch module (such as the RF coaxial switch) use existing technologies. The first PCB board 5 is provided with a functional circuit for completing PCI to FPGA communication, and the second PCB board 6 is provided with a functional circuit. The function of the functional circuit is to output high and low levels under the control of the first PCB board 5 to control the RF coaxial switch. It should be noted that the functional circuit on the first PCB board and the functional circuit on the second PCB are both existing commonly used circuits and will not be described in detail in this article.

[0034] Specifically, Figure 5 As shown, the fixing member 3 includes an integrally formed first mounting block 31 and a second mounting block 32, the first mounting block 31 is fixed to the bottom end of the back plate 1, and the second mounting block is fixed to the end of the slot plate 2. The first mounting block 31 is provided with a threaded hole perpendicular to the plane of the back plate 1, and the first fixing block is fixed to the back plate 1 by bolts, and the second mounting block 32 is provided with a screw hole perpendicular to the slot plate 2 and parallel to the back plate 1, and the second mounting block 32 is fixed to the slot plate 2 by bolts. Since the first mounting block 31 and the second mounting block 32 are integrally formed, the back plate 1 and the slot plate 2 are vertically fixedly connected together. In order to reduce the size of the fixing member 3, the first mounting block 31 and the second mounting block 32 are connected in a Z shape, so that the yield structure formed by the first mounting block 31 and the second mounting block 32 can be just clamped on the square flange of the RF coaxial switch at the end of the slot plate 2.

[0035] In this embodiment, the RF coaxial switch 4 includes a housing 41, and the circuit and components of the RF coaxial switch are installed inside the housing 41. The housing 41 is plugged into the first PCB board 5. The first port 44 and the second port are respectively opened at both ends of the housing 41. The first port 44 passes through the slot plate 2 and is located below the slot plate 2. The housing 41 is fixedly installed above the slot plate 2, and the second port is connected to the second PCB board 6. A square flange seat 42 is provided between the housing 41 and the slot plate 2. The housing 41 and the flange seat 42 are integrally formed. The four corners of the flange seat 42 are provided with mounting bolts to fix the housing 41 above the slot plate 2. Optionally, the housing 41 is a cylindrical structure. The axis of the RF coaxial switch 4 is installed parallel to the length direction of the first backplane 1. The slot plate 2 is provided with a through hole slot with the RF coaxial switch 4. The size of the through hole slot is smaller than the flange seat 42, so that the end of the RF coaxial switch 4 can pass through the through hole slot and then be fixed to the slot plate 2 through the flange seat 42.

[0036] In order to avoid the connector 43 used in the second port being too large, which would cause the overall structure to become larger, in the present application, the second port is connected to the second PCB board 6 through the J30J-9ZJ connector 43.

[0037] In some optional embodiments, studs 7 are provided between both ends of the bottom of the second PCB board 6 and the first PCB board 5 , one end of the stud 7 is threadedly connected and fixed to the second PCB board 6 , and the other end is threadedly connected to the first PCB board 5 .

[0038] In order to facilitate the extraction of the entire PXI switch module and its mounting structure from the PXI chassis, a pull handle 8 is installed below the slot plate 2 .

[0039] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A mounting structure of a PXI switch module, the PXI switch module comprising a plurality of radio frequency coaxial switches (4), a first PCB board (5) and a second PCB board (6), characterized in that: The mounting structure comprises a back plate (1) and a slot plate (2); the slot plate (2) is vertically fixedly mounted on the bottom end of the back plate (1) via a fixing member (3); a plurality of radio frequency coaxial switches (4) are respectively fixedly mounted above the slot plate (2); a first PCB board (5) is fixedly mounted on the bottom end of the back plate (1) and is located between the back plate (1) and the radio frequency coaxial switch (4); the radio frequency coaxial switch (4) is plugged onto the first PCB board (5); and a second PCB board (6) is fixed to the top end of the first PCB board (5) and passes through the top end of the first PCB board (5) and is fixed to the top end of the back plate (1).

2. The installation structure of a PXI switch module according to claim 1, characterized in that: The fixing member (3) comprises a first mounting block (31) and a second mounting block (32) which are integrally formed; the first mounting block (31) is fixed to the bottom end of the back plate (1), and the second mounting block is fixed to the end of the slot plate (2).

3. The installation structure of a PXI switch module according to claim 2, characterized in that: The first mounting block (31) and the second mounting block (32) are connected in a Z shape and are clamped on the radio frequency coaxial switch at the end of the slot plate (2).

4. The installation structure of a PXI switch module according to claim 1, characterized in that: The radio frequency coaxial switch (4) comprises a housing (41), wherein circuit components of the radio frequency coaxial switch are installed inside the housing (41), the housing (41) is plugged into a first PCB board (5), a first port (44) and a second port are respectively provided at two ends of the housing (41), the first port (44) passes through the slot board (2) and is located below the slot board (2), the housing (41) is fixedly installed above the slot board (2), and the second port is connected to a second PCB board (6).

5. The installation structure of a PXI switch module according to claim 4, characterized in that: The second port is connected to the second PCB board (6) via a J30J-9ZJ connector (43).

6. The installation structure of a PXI switch module according to claim 4, characterized in that: A flange seat (42) is provided between the shell (41) and the slot plate (2); the shell (41) and the flange seat (42) are integrally formed; and mounting bolts are provided at four corners of the flange seat (42) to fix the shell (41) above the slot plate (2).

7. The installation structure of a PXI switch module according to claim 4, characterized in that: The housing (41) is a cylindrical structure.

8. The installation structure of a PXI switch module according to claim 1, characterized in that: Studs (7) are provided between the two ends of the bottom of the second PCB board (6) and the first PCB board (5); one end of the stud (7) is threadedly connected and fixed to the second PCB board (6), and the other end is threadedly connected to the first PCB board (5).

9. The installation structure of a PXI switch module according to claim 1, characterized in that: A pull handle (8) is installed below the slot plate (2).

10. The installation structure of a PXI switch module according to claim 1, characterized in that: A plurality of radio frequency coaxial switches are closely arranged and installed along the length direction of the slot plate (2).

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