Universal switch box for radio frequency test

Abstract

The utility model provides a universal switch box for radio frequency testing, which comprises a case shell, a plurality of switch terminals, a plurality of switch terminals, a plurality of switch terminals, a plurality of switch terminals and a plurality of switch terminals, and is characterized in that the case shell is internally provided with a plurality of slots for accommodating radio frequency switches; the control panel is fixed in the case shell, a plurality of first connectors used for being connected with the radio frequency switches are arranged on the control panel, and a main control chip connected with the first connectors is arranged on the control panel. The universality and compatibility of the switch box are greatly improved, and the design of the switch box is more compact and lightweight.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency testing, in particular to a universal switch box for radio frequency testing. Background Art

[0002] The switch module occupies an important position in the automatic test system and serves as an information exchange center. The excitation signals such as the signal source and power supply can be automatically switched to any input port of the object under test through the switch module, and the signals of the corresponding output port of the object under test can be automatically switched to the corresponding instruments through the switch module. With the continuous development of RF technology, the types of RF chips and modules are becoming more and more diverse, and the requirements for automatic test equipment are also different. Correspondingly, the switch module of the automatic test equipment also needs to be designed according to the different test requirements of the corresponding object under test. If a switch box is developed for each object under test, it is obviously very inefficient and costly.

[0003] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as, acknowledged or implied in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a universal switch box for radio frequency testing.

[0005] The technical solution of the present invention provides a universal switch box for radio frequency testing, the switch box comprising:

[0006] A chassis shell, wherein the chassis shell is provided with a plurality of slots for accommodating radio frequency switches;

[0007] A control board is fixed in the chassis housing, a plurality of first connectors for connecting to the radio frequency switch are arranged on the control board, and a main control chip connected to the first connector is arranged on the control board.

[0008] Optionally, the switch box further includes:

[0009] A sub-switch module, wherein the sub-switch module includes the RF switch and an adapter board, the RF switch is connected to the adapter board, and a second connector for connecting to the first connector is provided on the adapter board; wherein a plurality of different types of interfaces for connecting to different types of RF switches are provided on the adapter board.

[0010] Optionally, the second connector is plug-connected to the first connector.

[0011] Optionally, the second connector and the first connector adopt a SATA interface standard.

[0012] Optionally, the sub-switch module further includes a sub-switch module front panel and a fixing plate, the sub-switch module front panel and the adapter plate are fixedly connected to the fixing plate, and the RF switch is fixedly connected to the sub-switch module front panel.

[0013] Optionally, the slot includes a positioning slot, and the edge of the adapter plate can slide in the positioning slot as a guide rail.

[0014] Optionally, the number of the slots is consistent with the number of the first connectors, and they correspond one to one in position.

[0015] Optionally, the chassis shell includes an open opening, and two wire slot plates are arranged on the upper and lower sides of the open opening. A plurality of positioning grooves are evenly arranged on the two wire slot plates, and the positioning grooves of the two wire slot plates are opposite to each other one by one. Multiple groups of opposite positioning grooves divide the open opening into a plurality of slots.

[0016] Optionally, the chassis shell includes a plurality of column-type fixings, which connect the two wire trough plates, the left and right chassis shells, and the upper and lower chassis shells, and / or the wire trough plates adopt a hollow design, and / or the chassis shell is provided with heat dissipation holes.

[0017] Optionally, the switch box further includes: a power supply for supplying power to the radio frequency switch and the control board.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the overall structure of the switch box (excluding the sub-switch module) according to an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the structure of a sub-switch module according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The advantages of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure.

[0024] The terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. The singular forms of "a", "the" and "the" used in this disclosure are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0025] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and they themselves have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0029] The purpose of this embodiment is to provide a universal modular switch box to solve the problem that the current automatic test equipment needs to customize the switch box according to various types and models of the tested objects, which is time-consuming and costly. On this basis, the switch box is further improved to make its structure more compact and lighter.

[0030] It should be noted that, generally, a switch box of an automatic test equipment includes a functional link and a port extension link. This embodiment distinguishes the functional link from the port extension link and only focuses on port extension.

[0031] like Figure 1 and 2 As shown, in one embodiment, the technical solution of this embodiment provides a universal switch box for RF testing, the switch box comprising: a chassis housing 1, a plurality of slots for accommodating RF switches 7 are arranged in the chassis housing 1; a control board 5, the control board 5 is fixed in the chassis housing 1, a plurality of first connectors for connecting to the RF switches 7 are arranged on the control board 5, and a main control chip connected to the first connector is arranged on the control board 5. This embodiment greatly improves the versatility and compatibility of the switch box, and makes the switch box design more compact and lightweight.

[0032] Optionally, the switch box also includes: a sub-switch module, the sub-switch module includes a RF switch 7 and an adapter board 9, the RF switch 7 is connected to the adapter board 9, and a second connector for connecting to the first connector is provided on the adapter board 9; wherein, the adapter board 9 is provided with multiple different types of interfaces for connecting to different types of RF switches 7.

[0033] Optionally, the second connector is plug-connected to the first connector.

[0034] Optionally, the second connector and the first connector use the SATA (Serial ATA) interface standard. The sub-switch modules can be installed on the chassis in any combination according to the needs of the object under test, and the sub-switch modules can be plug-and-play. The design of arbitrary combination and plug-and-play of the sub-switch modules not only greatly reduces the development and design time and cost of the switch box, but also makes it easier to overhaul and maintain the switch box in the later stage.

[0035] Optionally, the sub-switch module further includes a sub-switch module front panel 8 and a fixing plate 10, the sub-switch module front panel 8 and the adapter plate 9 are fixedly connected to the fixing plate 10, and the RF switch 7 is fixedly connected to the sub-switch module front panel 8. The sub-switch module is compatible with most types of RF switches. Taking the most commonly used single-pole double-throw switch (SPDT), single-pole four-throw switch (SP4T), and single-pole six-throw switch (SP6T) as examples, the size of the SPDT sub-switch module is set to occupy one slot, and the sizes of SP4T and SP6T are the same, and they are set to occupy two switch slots. Similarly, the width of the sub-switch module with more ports can be installed by setting it to an integer multiple of the slot width.

[0036] Optionally, the slot includes a positioning slot, and the edge of the adapter plate 9 can slide in the positioning slot as a guide rail.

[0037] Optionally, the number of slots is consistent with the number of first connectors, and the positions correspond one to one, ensuring that the sub-switch module can be well connected to the control board 5 after being inserted into the chassis.

[0038] Optionally, the chassis shell 1 includes an open opening, and two wire slot plates 3 are arranged on the upper and lower sides of the open opening. Multiple positioning grooves are evenly arranged on the two wire slot plates 3, and the positioning grooves of the two wire slot plates 3 are opposite to each other. Multiple groups of opposite positioning grooves divide the open opening into multiple slots.

[0039] Optionally, the chassis housing 1 includes a plurality of column-type fixing members 6, which connect the two wire trough plates 3, the left and right chassis shells, and the upper and lower chassis shells, and / or the wire trough plates 3 are hollowed out, and / or the chassis shell is provided with heat dissipation holes. The hollowed-out design and the heat dissipation holes improve the heat dissipation performance of the sub-switch module during operation. The chassis housing also includes a front panel 2.

[0040] Optionally, the switch box further includes: a power supply for supplying power to the RF switch 7 and the control board 5 .

[0041] Furthermore, in another embodiment, the switch box chassis height is 2 to 3U, and the length is suitable for a 19-inch rack. The chassis includes a metal chassis shell 1 with good heat dissipation and protection, a control board 5 connected to and controlling the sub-switch module, a wire trough board 3 for positioning and limiting the sub-switch module, and a fixing for fixing the control board 5 and the wire trough board 3. The wire trough board 3 is distributed on the upper and lower sides of the box body, and a plurality of positioning grooves are evenly arranged on the wire trough board 3, and the positioning grooves of the upper and lower wire trough boards 3 correspond to each other one by one. The upper and lower wire trough boards 3 are connected to the control board 5 using L-shaped fixings 4. There are six column-type fixings 6 symmetrically distributed on the left and right sides, connecting the upper and lower wire trough boards 3, the left and right chassis shells, and the upper and lower chassis shells.

[0042] Further, the sub-switch module includes a radio frequency switch 7, a sub-switch module front panel 8, an adapter plate 9, and a fixed plate 10. The width of the sub-switch module front panel 8 is designed to be the unit size of the positioning slot of the wire slot plate 3 or an integer multiple thereof. The sub-switch module front panel 8 is fixedly connected to the radio frequency switch 7 and the fixed plate 10 using screws. The fixed plate 10 is fixedly connected to the adapter plate 9 using screws. The adapter plate 9 is provided with an interface, which is connected to the interface of the control board 5, and the interfaces of the adapter plate 9 are consistent with the interfaces of the control board 5. The control board 5 and the adapter plate 9 are both circuit boards.

[0043] The switch box of this embodiment can be equipped with sub-switch modules according to the needs of the object to be tested, and can realize plug-and-play of sub-switch modules, which can shorten the development time of the switch box and reduce the development cost. The design of the sub-switch module increases its versatility, facilitates the subsequent maintenance of the switch box, replacement of the sub-switch module, etc., and reduces the maintenance time and cost.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A universal switch box for radio frequency testing, characterized in that: The switch box comprises: A chassis shell, wherein the chassis shell is provided with a plurality of slots for accommodating radio frequency switches; A control board is fixed in the chassis housing, a plurality of first connectors for connecting to the radio frequency switch are arranged on the control board, and a main control chip connected to the first connector is arranged on the control board.

2. The universal RF test switch box according to claim 1, characterized in that: The switch box also includes: A sub-switch module, wherein the sub-switch module includes the RF switch and an adapter board, the RF switch is connected to the adapter board, and a second connector for connecting to the first connector is provided on the adapter board; wherein a plurality of different types of interfaces for connecting to different types of RF switches are provided on the adapter board.

3. The universal switch box for radio frequency testing according to claim 2, characterized in that: The second connector is plug-connected to the first connector.

4. The universal switch box for radio frequency testing according to claim 2, characterized in that: The second connector and the first connector adopt the SATA interface standard.

5. The universal switch box for radio frequency testing according to claim 2, characterized in that: The sub-switch module further includes a sub-switch module front panel and a fixing plate. The sub-switch module front panel and the adapter plate are both fixedly connected to the fixing plate, and the radio frequency switch is fixedly connected to the sub-switch module front panel.

6. The universal switch box for radio frequency testing according to claim 2, characterized in that: The slot includes a positioning slot, and the edge of the adapter plate can slide in the positioning slot as a guide rail.

7. The universal switch box for radio frequency testing according to claim 1, characterized in that: The number of the slots is consistent with the number of the first connectors, and the positions correspond one to one.

8. The universal switch box for radio frequency testing according to claim 1, characterized in that: The chassis shell includes an open opening, and two wire slot plates are arranged on the upper and lower sides of the open opening. A plurality of positioning grooves are evenly arranged on the two wire slot plates, and the positioning grooves of the two wire slot plates are opposite to each other one by one. Multiple groups of opposite positioning grooves divide the open opening into a plurality of slots.

9. The universal switch box for radio frequency testing according to claim 8, characterized in that: The chassis shell includes a plurality of column-type fixings, which connect the two wire trough plates, the left and right chassis shells, and the upper and lower chassis shells, and / or the wire trough plates adopt a hollow design, and / or the chassis shell is provided with heat dissipation holes.

10. The universal switch box for radio frequency testing according to any one of claims 1 to 9, characterized in that: The switch box also includes: a power supply for supplying power to the radio frequency switch and the control board.

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