Cable-free electric installation machine box

Abstract

The utility model discloses a cable-free electrical installation machine box structure, relates to a cable-free machine box, and aims to solve the problem that crosstalk exists among different cables when the cables are used for connecting a connector and a functional module in the conventional machine box. The front plate, the back plate, the top plate, the bottom plate and the two side plates form a hexahedron structure, the front plate and the back plate are oppositely arranged, the top plate and the bottom plate are oppositely arranged, and the two side plates are oppositely arranged; the first connectors are arranged on the inner side of the PCB so as to be connected with the function module board in an inserted mode. The network port connector and the plurality of second connectors are arranged on the outer side of the PCB, and the network port connector is used for plugging a network cable; the plurality of second connectors are respectively used as external interfaces; the outer side of the PCB and the inner side of the backboard are fixed together, the internet access connector extends out of the first through hole, the second connectors extend out of the second through holes respectively, and the second connectors correspond to the second through holes one to one. The beneficial effect is that the crosstalk problem between signals is solved.

Description

Technical Field

[0001] The utility model relates to a cable-free machine case. Background Art

[0002] With the development of aerospace, aviation, electronic communication and other fields, test system equipment is required to be miniaturized and universal. At present, test system equipment usually includes RS422 communication, RS485 communication, 1553B communication, CAN communication, PCM code stream communication, Ethernet communication, analog input and output signals, switch input and output signals and power supply signals. Some systems also require redundancy functions, which further increases the number of backplane slots. The more slots there are, the more test signals need to be led out. The internal structure of the existing chassis mainly includes connectors and functional modules. The connection between the connector and the functional module is mostly directly connected by cables. In this way, the number of cables is huge, the wiring is messy, the space is large, and the cables have crosstalk and strong electromagnetic interference. How to reliably transfer these signals from the backplane to the external interface to ensure the transmission quality of the signal and reduce the crosstalk needs to be solved urgently. Utility Model Content

[0003] The utility model aims to solve the problem of crosstalk between different cables when cables are used to connect connectors and functional modules in the existing chassis, and proposes a cable-free electrical installation chassis.

[0004] The utility model discloses a cable-free electrical equipment box, the box comprising a front plate, a back plate, a top plate, a bottom plate and two side plates;

[0005] The front plate, back plate, top plate, bottom plate and two side plates form a hexahedral structure, and the front plate and the back plate are arranged opposite to each other, the top plate and the bottom plate are arranged opposite to each other, and the two side plates are arranged opposite to each other;

[0006] The chassis also includes a plurality of first connectors, a PCB circuit board, a network port connector and a plurality of second connectors;

[0007] The multiple first connectors are all arranged on the inner side of the PCB circuit board, and the multiple first connectors are respectively used to plug in different functional module boards;

[0008] The network port connector and the plurality of second connectors are both arranged on the outside of the PCB circuit board, wherein the network port connector is used to plug in the network cable; the plurality of second connectors are all used as external interfaces;

[0009] The back plate is provided with a first through hole and a plurality of second through holes;

[0010] The outer side of the PCB circuit board is fixed together with the inner side of the back plate, wherein the network port connector extends from the first through hole, and the plurality of second connectors extend from the plurality of second through holes respectively, and the plurality of second connectors correspond one-to-one to the plurality of second through holes.

[0011] Further, the plurality of first connectors are all CPCI slot connectors;

[0012] A plurality of CPCI slot connectors are arranged at equal intervals along the length direction of the PCB circuit board.

[0013] Further, the plurality of second connectors are all J30JA quick-lock straight-plug connectors;

[0014] Multiple J30JA quick-lock straight-plug connectors are arranged at equal intervals along the length direction of the PCB circuit board.

[0015] Furthermore, the plurality of second through holes are all rectangular through holes.

[0016] Furthermore, the first through hole is a circular through hole.

[0017] Furthermore, the top plate, the bottom plate and the two side plates are each provided with a plurality of ventilation holes;

[0018] The multiple ventilation holes opened on the top plate form a circular array, the multiple ventilation holes opened on the bottom plate form a circular array; the multiple ventilation holes opened on the two side plates form rectangular arrays respectively.

[0019] Furthermore, the chassis also includes a handle;

[0020] The handle is arranged at a central position on the outer side of one of the side panels.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In the utility model, there are no cables between the function module board and the external interface of the plurality of second connectors in the chassis. The plurality of second connectors on the outside of the PCB circuit board are directly used as the external interface, and the PCB circuit board replaces the connecting cables, so that different signals maintain a fixed distance, thereby ensuring the signal transmission quality, solving the crosstalk problem between different signals, and improving the modularization and generalization level of the system; because the connecting cables are replaced by the PCB circuit board, the impact and vibration resistance of the chassis is improved, and the chassis concentrates the function module boards on the PCB circuit board through the plurality of first connectors, so that the chassis has a greater advantage in miniaturization design, and at the same time reduces the processing procedures and processing raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the overall structure of a cable-free electrical equipment box according to the first specific implementation mode;

[0024] Figure 2 This is a schematic structural diagram of a cable-free electrical equipment box without a bottom plate and a side plate as described in the first specific implementation mode;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the back plate in the first specific implementation mode;

[0026] Figure 4 It is a schematic diagram of the arrangement of multiple first connectors on a PCB circuit board in the second specific implementation mode;

[0027] Among them, 1 is the front panel; 2 is the back panel; 3 is the top panel; 4 is the bottom panel; 5 is the side panel; 6 is the first connector; 7 is the PCB circuit board; 8 is the network port connector; 9 is the second connector; 10 is the first through hole; 11 is the second through hole; 12 is the functional module board; and 13 is the handle. DETAILED DESCRIPTION

[0028] Specific implementation method 1. Combination Figures 1 to 3 The present embodiment is described as a cable-free electrical equipment chassis, the chassis comprising a front plate 1, a back plate 2, a top plate 3, a bottom plate 4 and two side plates 5;

[0029] The front plate 1, the back plate 2, the top plate 3, the bottom plate 4 and the two side plates 5 form a hexahedral structure, and the front plate 1 is arranged opposite to the back plate 2, the top plate 3 and the bottom plate 4 are arranged opposite to each other, and the two side plates 5 are arranged opposite to each other;

[0030] The chassis further comprises a plurality of first connectors 6, a PCB circuit board 7, a network port connector 8 and a plurality of second connectors 9;

[0031] The plurality of first connectors 6 are all arranged on the inner side of the PCB circuit board 7, and the plurality of first connectors 6 are respectively used to plug in different functional module boards 12;

[0032] The network port connector 8 and the plurality of second connectors 9 are both arranged on the outside of the PCB circuit board 7, wherein the network port connector 8 is used to plug in the network cable; the plurality of second connectors 9 are all used as external interfaces;

[0033] The back plate 2 is provided with a first through hole 10 and a plurality of second through holes 11;

[0034] The outer side of the PCB circuit board 7 is fixed together with the inner side of the back plate 2, wherein the network port connector 8 extends out from the first through hole 10, and the multiple second connectors 9 extend out from the multiple second through holes 11 respectively, and the multiple second connectors 9 correspond to the multiple second through holes 11 one by one.

[0035] In this embodiment, the outer side of the PCB circuit board 7 is fixed to the inner side of the back plate 2 in a fitting manner, and the multiple first connectors 6 are arranged on the inner side of the PCB circuit board 7 by welding, and the network port connector 8 and the multiple second connectors 9 are arranged on the outer side of the PCB circuit board 7 by welding; the PCB circuit board 7 is used to perform signal transfer between the multiple first connectors 6 and the multiple second connectors 9, and is also used to transfer power; the PCB circuit board 7 integrates multiple 923190 connectors, multiple 224057 connectors, 914796 connectors and multiple J30JA-100ZKN4-J sockets; wherein the 923190 connector is a board-to-board connector, and the 224057 connector is used to plug the first connector 6; the 914796 The connector is a backplane connector; the J30JA-100ZKN4-J socket is used to weld the second connector 9; there are no cables between the functional module board 12 in the chassis and the external interfaces of the multiple second connectors 9, and the multiple second connectors 9 on the outside of the PCB circuit board 7 are directly used as external interfaces, and the PCB circuit board replaces the connecting cables, so that different signals maintain a fixed distance, thereby ensuring the quality of signal transmission, solving the crosstalk problem between different signals, and improving the modularization and generalization level of the system; because the connecting cables are replaced by the PCB circuit board, the impact and vibration resistance of the chassis is improved, and the chassis concentrates the functional module boards on the PCB circuit board through multiple first connectors, making the chassis more advantageous in miniaturized design. Figure 2 In the embodiment, a functional module board 12 is plugged into the first connector 6 .

[0036] Specific implementation method 2: Combination Figure 4 To explain this embodiment, this embodiment further limits the cableless electrical equipment chassis described in the specific embodiment one. In this embodiment, the multiple first connectors 6 are all CPCI slot connectors; the multiple CPCI slot connectors are arranged at equal intervals along the length direction of the PCB circuit board 7.

[0037] In this embodiment, the CPCI slot connector has a fast signal transmission speed, and the interface rate reaches 2.5 Gbps; it also has the advantages of high reliability and good stability; the arrangement of multiple CPCI slot connectors determines the number of functional module boards 12 that can be plugged into the CPCI slot connector, and determines the occupied space of the chassis, and the above arrangement can meet the maximization of the number of plug-in functional module boards 12 and the rationalization of the occupied space.

[0038] Specific implementation method 3: This implementation method further limits the cable-free electrical equipment box described in specific implementation method 1 or 2. In this implementation method, the plurality of second connectors 9 are all J30JA quick-lock straight plug connectors;

[0039] Multiple J30JA quick-lock straight-insert connectors are arranged at equal intervals along the length direction of the PCB circuit board 7.

[0040] In this embodiment, the J30JA quick-lock straight plug connector is a board-made NJ type. The J30JA quick-lock straight plug connector can ensure the quality of the signal transmission process and reduce the crosstalk problem between signals.

[0041] Specific implementation method 4: This implementation method further limits the cable-free electrical equipment box described in specific implementation method 1. In this implementation method, the plurality of second through holes 11 are all rectangular through holes.

[0042] In this embodiment, the plurality of second through holes 11 are all rectangular through holes, and the plurality of second through holes 11 are distributed in a row; the rectangular shape of the through holes is convenient for arrangement, and the distribution in a row facilitates the control of the distance between two adjacent second through holes 11 to reduce the crosstalk problem between signals.

[0043] Specific implementation method five: This implementation method further limits the cable-free electrical equipment box described in specific implementation method one or four. In this implementation method, the first through hole 10 is a circular through hole.

[0044] In this embodiment, the first through hole 10 is located below the plurality of second through holes 11, and the circular through hole is easily distinguished from the second through holes 11 to avoid errors in network cable insertion.

[0045] Specific implementation method 6. This implementation method further limits the cable-free electrical equipment box described in specific implementation method 1. In this implementation method, a plurality of ventilation holes are provided on the top plate 3, the bottom plate 4 and the two side plates 5;

[0046] The multiple ventilation holes opened on the top plate 3 form a circular array, and the multiple ventilation holes opened on the bottom plate 4 form a circular array; the multiple ventilation holes opened on the two side plates 5 form rectangular arrays respectively.

[0047] In this embodiment, the provision of the ventilation holes enables the chassis to have good heat dissipation, facilitates gas convection, and reduces the amount of objects larger than the diameter of the ventilation holes that enter the chassis.

[0048] Specific embodiment 7. This embodiment further limits the cable-free electrical equipment box described in specific embodiment 1 or 6. In this embodiment, the box further includes a handle 13;

[0049] The handle 13 is disposed at a central position on the outer side of one of the side panels 5 .

[0050] In this embodiment, the handle 13 is provided to facilitate the transportation of the chassis and to make it easier to carry.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cable-free electrical equipment chassis, the chassis comprising a front panel (1), a back panel (2), a top panel (3), a bottom panel (4) and two side panels (5); The front plate (1), the back plate (2), the top plate (3), the bottom plate (4) and the two side plates (5) form a hexahedral structure, and the front plate (1) and the back plate (2) are arranged opposite to each other, the top plate (3) and the bottom plate (4) are arranged opposite to each other, and the two side plates (5) are arranged opposite to each other; It is characterized in that The chassis further comprises a plurality of first connectors (6), a PCB circuit board (7), a network port connector (8) and a plurality of second connectors (9); The plurality of first connectors (6) are all arranged on the inner side of the PCB circuit board (7), and the plurality of first connectors (6) are respectively used for plugging different functional module boards (12); The network port connector (8) and the plurality of second connectors (9) are both arranged on the outside of the PCB circuit board (7), wherein the network port connector (8) is used to plug in a network cable; and the plurality of second connectors (9) are all used as external interfaces; The back plate (2) is provided with a first through hole (10) and a plurality of second through holes (11); The outer side of the PCB circuit board (7) is fixed to the inner side of the back plate (2), wherein the network port connector (8) extends from the first through hole (10), and the plurality of second connectors (9) respectively extend from the plurality of second through holes (11), and the plurality of second connectors (9) correspond one-to-one to the plurality of second through holes (11).

2. The cable-free electrical equipment box according to claim 1, characterized in that: The plurality of first connectors (6) are all CPCI slot connectors; The plurality of CPCI slot connectors are arranged at equal intervals along the length direction of the PCB circuit board (7).

3. A cable-free electrical equipment box according to claim 1 or 2, characterized in that: The plurality of second connectors (9) are all J30JA quick-lock straight-plug connectors; A plurality of J30JA quick-lock straight-insert connectors are arranged at equal intervals along the length direction of the PCB circuit board (7).

4. The cable-free electrical equipment box according to claim 1, characterized in that: The plurality of second through holes (11) are all rectangular through holes.

5. A cable-free electrical equipment box according to claim 1 or 4, characterized in that: The first through hole (10) is a circular through hole.

6. The cable-free electrical equipment box according to claim 1, characterized in that: The top plate (3), the bottom plate (4) and the two side plates (5) are all provided with a plurality of ventilation holes; The multiple ventilation holes opened on the top plate (3) form a circular array, the multiple ventilation holes opened on the bottom plate (4) form a circular array; and the multiple ventilation holes opened on the two side plates (5) respectively form a rectangular array.

7. A cable-free electrical equipment box according to claim 1 or 6, characterized in that: The chassis also includes a handle (13); The handle (13) is arranged at a central position on the outer side of one of the side panels (5).

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