Layered vector network analyzer case

Abstract

The embodiment of the utility model discloses a layered vector network analyzer case. The layered vector network analyzer case comprises an inner cavity assembly and a shell mounted outside the inner cavity assembly, the inner cavity assembly is formed by combining a group of front panels and rear panels and a group of upper-layer plates and lower-layer plates, and the upper-layer plates and the lower-layer plates are of three-edge surrounding structures with single-side openings and respectively comprise connecting plates and two side wing plates perpendicular to the connecting plates; the upper layer plate and the lower layer plate are connected in a coplanar mode through the connecting plate and surround the two opposite sides of the inner cavity assembly through the side wing plates. According to the layered vector network analyzer case, the inner cavity assembly is divided into independent installation spaces through the structural design of the upper layer plate and the lower layer plate, and then different parts are installed in different areas according to attribute characteristics, so that interference between modules is reduced, the isolation degree and the space utilization rate of the case are improved, and equipment assembly is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment auxiliary facilities, and in particular to a layered vector network analyzer chassis. Background Art

[0002] Vector network analyzer is a kind of electromagnetic wave energy test equipment, which can measure the amplitude of various parameters of single-port network or two-port network, as well as the phase. It generally includes excitation signal source device, signal separation device, receiver, processing and display device. In order to ensure the accuracy, this kind of device usually has certain isolation requirements for the working environment.

[0003] There are many types of chassis used for vector network analyzers on the market, including open and sealed types. Most of the instrument modules are laid out flat in the chassis, resulting in low utilization of the internal space and inconvenient maintenance. Due to limited space, the flat layout design also makes it impossible for the modules to achieve the optimal isolation distance, so they are prone to interference with each other. Utility Model Content

[0004] The main purpose of the present application is to provide a layered vector network analyzer chassis, aiming to solve the technical problem of poor isolation in the internal component installation design of the existing analyzer chassis.

[0005] To achieve the above-mentioned object, the present application proposes a layered vector network analyzer chassis, the chassis comprising an inner cavity component and a shell installed outside the inner cavity component;

[0006] The inner cavity component includes a group of front panels and rear panels and a group of upper panels and lower panels. The upper panels and the lower panels are both three-sided surrounding structures with a single-side opening, and respectively include a connecting plate and two side wing panels perpendicular to the connecting plate. The upper panel and the lower panel are connected in a coplanar manner through the connecting plate and surround the two opposite sides of the inner cavity component through the side wing panels.

[0007] Optionally, the inner cavity assembly further includes a set of left side panels and right side panels, which are respectively installed in parallel on the sides of the two side wing panels of the lower plate adjacent to each other, and the left side panel and the right side panel are respectively configured with cooling fans.

[0008] Optionally, both side panels of the lower panel include a mounting area for mounting the left panel or the right panel.

[0009] Optionally, card slots that match each other and are used to install a card vertically are provided on one side of the left plate and the right plate that are adjacent to each other.

[0010] Optionally, a plurality of the card slots are arranged at a preset distance, so that a transverse heat dissipation duct is formed between the plurality of the plug-in cards.

[0011] Optionally, the connecting plate of the upper plate is fixed to the connecting plate of the lower plate by screws.

[0012] Optionally, the inner cavity component further includes an upper cover plate and a lower cover plate, wherein the upper cover plate is fixedly connected to the upper plate, and the lower cover plate is fixedly connected to the lower plate, so as to form two other opposite lateral enclosures for the inner cavity component.

[0013] Optionally, the inner cavity component divides the installation cavity into an upper layer part and a lower layer part through the upper layer plate and the lower layer plate, the upper layer part is used to install a signal receiving module, and the lower layer part is used to install a signal processing module.

[0014] Optionally, the shell is a barrel-type structure with openings at both ends, and the front panel and the rear panel are respectively buckled with the openings at both ends of the shell.

[0015] Optionally, handles are installed on the front panel and the sides of the inner cavity component, and a foot pad is installed on the rear panel.

[0016] Compared with the existing analytical instrument chassis, the utility model has at least the following beneficial effects: through the assembly design of the upper plate and the lower plate, the installation space is divided into an upper part and a lower part that are isolated from each other, and the surrounding structure of the upper plate and the lower plate can simultaneously surround the two sides of the inner cavity component, so that the inner cavity component has the conditions for supporting and installing various components, and under the installation condition of the outer shell, a vector network analyzer chassis with good integrity and internal layering is formed, so that the components with different functions inside the chassis can be effectively divided into areas during installation, ensuring good isolation while also improving the space utilization of the chassis and reducing the size of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in 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 only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structural disassembly of an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of an embodiment of the inner cavity component of the utility model;

[0020] Figure 3 This is the installation relationship diagram of the upper plate and the lower plate of the utility model;

[0021] Figure 4 for Figure 3 Bottom view of the installation relationship;

[0022] Figure numerals: 1. Inner cavity assembly; 11. Front panel; 12. Rear panel; 13. Upper panel; 14. Lower panel; 15. Left panel; 16. Right panel; 17. Cooling fan; 18. Upper cover; 19. Lower cover; 2. Outer shell; 3. Handle; 4. Foot pad.

[0023] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] There are two main types of mainstream vector network analyzer chassis structures on the market: one is the traditional discrete structure, in which each module such as signal source, receiver, S-parameter test device, etc. is independently packaged and interconnected by cables or adapters; the other is the integrated or integrated structure, which integrates the above components in a compact chassis, reducing the additional loss and interference caused by physical connections.

[0029] However, although the traditional discrete chassis is convenient for repairing and replacing individual modules, its scattered layout and complex circuits often increase the overall size and weight of the system, reduce space utilization, and may affect the isolation and accuracy of the final measurement results due to contact loss and intermodulation distortion caused by multiple connections. Although the integrated chassis has improved the space utilization efficiency and reduced the overall volume to a certain extent, the heat dissipation design has become more complicated due to the dense arrangement of internal components. In addition, while pursuing miniaturization, how to ensure the electromagnetic compatibility between components, especially maintaining a high level of isolation, has become a difficulty.

[0030] The existing vector network analyzer chassis design faces the challenge of balancing the space utilization and high isolation. On the one hand, the chassis volume should be reduced as much as possible to meet the needs of limited laboratory space or field portability. On the other hand, it is necessary to ensure sufficient electrical isolation between components and reduce unnecessary signal coupling to achieve a higher level of measurement accuracy and reliability. Therefore, researching and developing a new chassis structure that takes into account both efficient space utilization and excellent isolation performance is of great significance to improving the overall technical level of vector network analyzers.

[0031] like Figure 1 The figure shows an embodiment of a chassis of a layered vector network analyzer provided by the utility model, wherein the chassis comprises an inner cavity component 1 and a shell 2 installed outside the inner cavity component 1;

[0032] The inner cavity component 1 includes a group of front panels 11 and rear panels 12 and a group of upper panels 13 and lower panels 14. The upper panels 13 and the lower panels 14 are both three-sided surrounding structures with a single-side opening, and respectively include a connecting plate and two side panels perpendicular to the connecting plate. The upper panel 13 and the lower panel 14 are connected in a coplanar manner through the connecting plates and surround the two opposite sides of the inner cavity component 1 through the side panels.

[0033] Specifically, see Figure 2 , Figure 3 and Figure 4 The installation space of the layered vector network analyzer chassis is formed by an inner cavity component 1. Taking the installation space as a regular hexahedral structure as an example, the inner cavity component 1 includes a front panel 11 and a rear panel 12 corresponding to the front and rear opposite sides of the hexahedral structure and cooperates with the outer shell 2 to complete the overall assembly of the chassis. In this embodiment, the outer shell 2 can adopt a barrel structure with openings at both ends, and the front panel 11 and the rear panel 12 are respectively buckled with the openings at both ends to form a seal to complete the packaging of the chassis, and the barrel-type structure The outer shell 2 can be formed by bending and riveting two sheet metal parts. The outer shell 2 of the utility model adopts this structure to reduce the multiple gaps in the outer shell 2 of the traditional chassis spliced ​​by four sides, thereby enhancing the shielding capability of the whole machine.

[0034] Both the upper plate 13 and the lower plate 14 are U-shaped single-sided open three-sided enclosed structures, and respectively include a connecting plate and two side wing plates respectively connected to the two ends of the connecting plate. During assembly, the upper plate 13 and the lower plate 14 are spliced ​​with the connecting plate as the mirror symmetry axis and fixed by screws, thereby dividing the space to form a relatively isolated installation space (that is, the space surrounded by the U-shaped structure); and in this assembly relationship, the side wing plates of the upper plate 13 and the lower plate 14 are spliced ​​together to form a lateral seal, avoiding additional packaging components or steps.

[0035] It should be noted that all types of plate structures involved in the present invention can be realized by metal sheets or other suitable materials, and the present invention does not limit or explain this in detail.

[0036] The chassis of this embodiment is designed to assemble the upper plate 13 and the lower plate 14 so that the installation space is divided into an upper part and a lower part that are isolated from each other, and the surrounding structure of the upper plate 13 and the lower plate 14 can also surround the two sides of the inner cavity component 1, so that the inner cavity component 1 has the conditions to support and install various components. Further, under the wrapping of the outer shell 2, a vector network analyzer chassis with good integrity and internal layering is formed. In this way, the components with different functions inside the chassis can be effectively divided into areas during installation, which ensures good isolation while also improving the space utilization of the chassis and reducing the size of the chassis.

[0037] In the above embodiment, the inner cavity component 1 divides the installation cavity into an upper part and a lower part through the upper plate 13 and the lower plate 14, and further optionally, the upper part is used to install a signal receiving module, and the lower part is used to install a signal processing module.

[0038] In this embodiment, the upper part (upper board 13) of the vector network analyzer chassis is mainly installed with signal receiving modules, such as receivers, couplers, port cables, etc.; the lower part (lower board 14) is installed with signal processing modules such as CPU module, power module, clock module, intermediate frequency processing module and source transmitter module.

[0039] After the layered design, the transmitter and receiver can be spatially isolated, thereby improving the isolation between the transmitter and receiver.

[0040] Signal processing modules usually generate heat due to high power consumption, so heat dissipation design is required. Therefore, based on the above implementation, the present invention makes further improvements as follows:

[0041] Optionally, the inner cavity assembly 1 further includes a set of left panels 15 and right panels 16, which are respectively installed in parallel on the sides of the two side panels of the lower plate 14 adjacent to each other, and the left panel 15 and the right panel 16 are respectively configured with cooling fans 17.

[0042] See also Figure 1 to Figure 4 The installation space formed by the upper plate 13 and the lower plate 14 is relatively closed after the shell 2 is installed, and the heat dissipation effect is not good. By installing a left plate 15 and a right plate 16 with a cooling fan 17 on the side, air flow is formed inside the chassis to take away the heat and achieve heat dissipation.

[0043] Furthermore, the two side panels of the lower panel 14 each include an installation area for installing the left panel 15 or the right panel 16 .

[0044] See also Figure 3 , Figure 4 The lower plate 14 is a D-shaped structure, and the missing part of the side wing plate relative to the complete rectangle is the installation area. The "gap" is filled by installing the left plate 15 and the right plate 16. This is based on the comprehensive consideration of structural strength, thickness and component installation requirements. For example, the structural shape of the cooling fan 17 fills the "gap" part, improves the stability of the structure, and also provides heat dissipation function for the components installed therein, as follows:

[0045] In some embodiments, card slots that match each other and are used to install a card in the longitudinal direction are provided on one side of the left side plate 15 and the right side plate 16 that are adjacent to each other.

[0046] Furthermore, a plurality of the card slots are arranged at a preset distance, so that a transverse heat dissipation duct is formed between the plurality of the plug-in cards.

[0047] By the corresponding design of the card slots on the left panel 15 and the right panel 16, module parts such as plug-in cards can be quickly and regularly installed in the installation space of the chassis, and a certain gap can be formed between each plug-in card, for example, the preset distance can be set to 10mm, so that it has good ventilation in the horizontal space inside the chassis.

[0048] In the aforementioned embodiment, all structures involving plate connection can be realized by screw connection, which is compatible with the aforementioned use of sheet metal structure to make the components of the chassis of the utility model so as to have better and more stable structural stability.

[0049] In some embodiments, the inner cavity assembly 1 further includes an upper cover plate 18 and a lower cover plate 19, wherein the upper cover plate 18 is fixedly connected to the upper plate 13, and the lower cover plate 19 is fixedly connected to the lower plate 14 to form two other opposite lateral enclosures for the inner cavity assembly 1.

[0050] In this embodiment, the upper cover plate 18 and the lower cover plate 19 cover the U-shaped openings of the upper plate 13 and the lower plate 14, thereby realizing the encapsulation of the installation space. After the internal parts are installed in the upper and lower installation spaces, the upper and lower covers 19 cover the installation space, and the whole machine is installed in the front panel 11, and then inserted into the housing 2.

[0051] Optionally, handles 3 are installed on the front panel 11 and the sides of the inner cavity component 1 for easy movement and carrying, and foot pads 4 are installed on the rear panel 12 to form a stable support to reduce dust from entering the interior.

[0052] After installation, the internal modules are arranged in upper and lower layers to reduce the correlation between modules and improve the convenience of module assembly and maintenance. The disassembly and maintenance of the whole machine is also simple and easy to operate due to this structure.

[0053] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A layered vector network analyzer chassis, characterized in that: The chassis comprises an inner cavity component and a shell installed outside the inner cavity component; The inner cavity component includes a group of front panels and rear panels and a group of upper panels and lower panels. The upper panels and the lower panels are both three-sided surrounding structures with a single-side opening, and respectively include a connecting plate and two side wing panels perpendicular to the connecting plate. The upper panel and the lower panel are connected in a coplanar manner through the connecting plate and surround the two opposite sides of the inner cavity component through the side wing panels.

2. The layered vector network analyzer chassis according to claim 1, characterized in that: The inner cavity component also includes a group of left side panels and right side panels, which are respectively installed in parallel on the sides of the two side wing panels of the lower plate that are adjacent to each other. The left side panel and the right side panel are respectively equipped with cooling fans.

3. The layered vector network analyzer chassis according to claim 2, characterized in that: Both side wing panels of the lower panel include a mounting area for mounting the left panel or the right panel.

4. The layered vector network analyzer chassis according to claim 3, characterized in that: Card slots that match each other and are used for longitudinally installing plug-in cards are arranged on one side of the left side plate and the right side plate that are adjacent to each other.

5. The layered vector network analyzer chassis according to claim 4, characterized in that: A plurality of the card slots are arranged at a preset distance, so that a transverse heat dissipation air channel is formed between the plurality of the plug-in cards.

6. The layered vector network analyzer chassis according to claim 1, characterized in that: The connecting plate of the upper plate is connected and fixed to the connecting plate of the lower plate by screws.

7. The layered vector network analyzer chassis according to claim 1, characterized in that: The inner cavity component also includes an upper cover plate and a lower cover plate, wherein the upper cover plate is fixedly connected to the upper plate, and the lower cover plate is fixedly connected to the lower plate, so as to form two other opposite lateral enclosures for the inner cavity component.

8. The layered vector network analyzer chassis according to claim 1, characterized in that: The inner cavity component divides the installation cavity into an upper layer part and a lower layer part through the upper layer plate and the lower layer plate. The upper layer part is used to install a signal receiving module, and the lower layer part is used to install a signal processing module.

9. The layered vector network analyzer chassis according to claim 1, characterized in that: The shell is a barrel-shaped structure with openings at both ends, and the front panel and the rear panel are respectively buckled with the openings at both ends of the shell.

10. The layered vector network analyzer chassis according to claim 9, characterized in that: The front panel and the sides of the inner cavity component are respectively provided with handles, and the rear panel is provided with a foot pad.

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