Drawing assembly type impedance network device convenient to overhaul

Abstract

The utility model belongs to the technical field of impedance networks, and particularly discloses a push-pull assembly type impedance network device convenient to overhaul, which comprises a hollow mounting shell, a mounting groove and a supporting assembly, ventilation notches are formed in the left and right side walls of the mounting shell, a cooling fan is arranged in the ventilation notch in the right side, and the supporting assembly is arranged in the mounting groove. The mounting groove is formed in the upper portion of the left side wall of the mounting shell, a drawing plate is movably connected to the mounting groove, a bearing substrate is fixedly connected to the left side of the drawing plate, and an impedance network circuit assembly is mounted on the upper surface of the bearing substrate. When the impedance network circuit assembly needs to be taken out for maintenance, the drawing plate is drawn outwards to drive the bearing substrate and the impedance network circuit assembly to move to the outside of the external shell, so that the operation is relatively convenient, and the impedance network circuit assembly is easy to take out for maintenance. And the supporting assembly is arranged, and the bearing substrate is fixed and supported from the inner side, so that the bearing substrate and the impedance network circuit assembly are relatively stable after being installed.

Description

TECHNICAL FIELD

[0001] The utility model relates to impedance network technical field, concretely is a kind of pull assembly type impedance network device of convenient overhaul. BACKGROUND

[0002] LISN impedance device (impedance network) is line impedance stable network.LISN is an important auxiliary equipment in electromagnetic compatibility test in power system.It can isolate radio wave interference, provide stable test impedance, and play the role of filtering.

[0003] Due to the greater working strength of impedance network, it often needs to be overhauled due to heating, and the circuit structure of impedance network is usually fixedly installed inside the shell by screws, and when overhauling, the shell needs to be opened, and then the impedance network circuit assembly is disassembled by disassembling the screws, which is more cumbersome to operate. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of pull assembly type impedance network device of convenient overhaul to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of pull assembly type impedance network device of convenient overhaul, comprising:

[0006] The installation shell is hollow, and ventilation slots are formed in the left and right side walls of the installation shell, and the right ventilation slot is provided with a cooling fan;

[0007] The installation groove is formed in the upper part of the left side wall of the installation shell, the pull plate is movably connected to the installation groove, the right side of the pull plate is fixedly connected with a bearing base plate, the bearing base plate is installed with impedance network circuit assembly on the upper surface, and the bearing base plate is provided with a through hole;

[0008] The support assembly is arranged between the right side of the bearing base plate and the right side inside the installation shell.

[0009] Preferably, the ventilation slots on both sides are provided with dustproof covers, and the cooling fan is located on the left side of the right dustproof cover.

[0010] Preferably, the left side wall of the pull plate is provided with a handle, and the pull plate is provided with a wire slot.

[0011] Preferably, the right lower side of the pull plate is fixedly connected with a clamping frame, the right side wall of the clamping frame is recessed to form a clamping groove, the left side of the bearing base plate is embedded in the clamping groove, and the bearing base plate and the clamping frame are connected by screws.

[0012] Preferably, the support assembly comprises a sleeve fixedly connected to the right side wall of the bearing base plate and a plug-in support fixedly connected to the right side wall inside the mounting shell, the plug-in support corresponds to the position of the sleeve, and a rubber ball is arranged on the left side of the plug-in support, the diameter of the rubber ball is greater than the inner cavity diameter of the sleeve.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] When the impedance network circuit assembly needs to be taken out for maintenance, the pull-out plate is pulled outwards, which drives the bearing base plate and the impedance network circuit assembly to move to the outside of the outer shell, so that the operation is more convenient and the impedance network circuit assembly is easy to take out for maintenance.

[0015] The support assembly is arranged to fix and support the bearing base plate from the inside, so that the bearing base plate and the impedance network circuit assembly are more stable after being installed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the utility model;

[0017] Fig. 2 It is a separate schematic view of the mounting shell, the pull-out plate, the impedance network circuit assembly and other structures of the utility model;

[0018] Fig. 3 It is a structural schematic view of the support assembly of the utility model.

[0019] In the drawing: 1, mounting shell; 2, ventilation slot; 3, mounting groove; 4, pull-out plate; 5, wire passage; 6, handle; 7, clamping frame; 8, bearing base plate; 9, impedance network circuit assembly; 10, flow-through opening; 11, support assembly; 111, sleeve; 112, plug-in support; 113, rubber ball; 12, cooling fan. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0022] Embodiment one:

[0023] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a pull assembly type impedance network device of convenient overhaul, comprising: installation shell 1, installation groove 3, support component 11;

[0024] The installation shell 1 is hollow, and the left and right side walls of installation shell 1 are all provided with ventilation slot 2, and the ventilation slot 2 on the right side is provided with cooling fan 12, the installation groove 3 is arranged on the left side wall upper portion of installation shell 1, the pull plate 4 is movably connected at the installation groove 3, the right side of pull plate 4 is fixedly connected with bearing substrate 8, the upper surface of bearing substrate 8 is installed with impedance network circuit component 9, the through hole 10 is arranged on bearing substrate 8, and the support component 11 is arranged between the right side of bearing substrate 8 and the right side inside installation shell 1.

[0025] The above content is analyzed: impedance network circuit component 9 uses prior art, the present scheme does not change impedance network circuit component 9, and the circuit structure composition, circuit connection mode of impedance network circuit component 9 are not changed.In use, impedance network circuit component 9 is placed on bearing substrate 8, and the right side wall of bearing substrate 8 and pull plate 4 are fixedly connected, then bearing substrate 8 and impedance network circuit component 9 are inserted into installation shell 1 from installation groove 3, until pull plate is covered in installation groove 3, and support component 11 is connected to bearing substrate 8 and installation shell 1.

[0026] Embodiment two:

[0027] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme based on embodiment one: the dust screen cover is arranged at the ventilation slot 2 of both sides, and the cooling fan 12 is located at the left side of right side dust screen cover.

[0028] The above content is analyzed: through the setting of dust screen cover, prevent the dust outside from entering installation shell 1.

[0029] Embodiment three:

[0030] Please refer to Figs. 1-3The utility model discloses a technical scheme based on example one: the left side wall of the pull -out plate 4 is provided with handle 6, is set with through -wire slot 5 on the pull -out plate 4.

[0031] The above content is analyzed: through the setting of handle 6, the pull -out plate 4 is conveniently pulled, and the setting of through -wire slot 5 facilitates wiring.

[0032] Example four:

[0033] Please refer to Figs. 1-3 The utility model discloses a technical scheme based on example one: the right lower side of the pull -out plate 4 is fixedly connected with the card frame 7, the right side wall of the card frame 7 is recessed to the left and forms the card slot, the left side of the bearing substrate 8 is embedded in the card slot, and the bearing substrate 8 is connected through screw with the card frame 7.

[0034] The above content is analyzed: through embedding the left side of the bearing substrate 8 in the card slot and further connecting through screw, the connection is relatively fastened.

[0035] Example five:

[0036] Please refer to Figs. 1-3 The utility model discloses a technical scheme based on example one: the support component 11 includes the sleeve 111 fixedly connected in the right side wall of bearing substrate 8 and the plug -in pillar 112 fixedly connected in the right side wall inside the installation shell 1, the position of the plug -in pillar 112 corresponds with the sleeve 111, the left side of the plug -in pillar 112 is provided with rubber ball 113, and the diameter of rubber ball 113 is greater than the inner chamber diameter of sleeve 111.

[0037] The above content is analyzed: in use, the pull -out plate 4 drives bearing substrate 8, impedance network circuit assembly 9, sleeve 111 to be inserted to the right inside installation shell 1, and until sleeve 111 is sleeved in plug -in pillar 112, rubber ball 113, like this, bearing substrate 8, impedance network circuit assembly 9 are supported from the rear side, and due to the size, rubber ball 113 and sleeve 111 are not easy to separate, thereby realizing the fixation of pull -out plate 4, bearing substrate 8, impedance network circuit assembly 9, in order to prevent loosening further, if necessary, the screw connection between pull -out plate 4 and installation shell 1 can be increased.

[0038] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be considered as limiting the claims involved.

[0039] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pull-out assembly impedance network device for easy access, characterized by, Include: The installation shell (1) is hollow, and the left and right side walls of the installation shell (1) are provided with ventilation slots (2), and the right side of the ventilation slot (2) is provided with a cooling fan (12); The installation groove (3) is opened in the upper part of the left side wall of the installation shell (1), the pull-out plate (4) is movably connected at the installation groove (3), the right side of the pull-out plate (4) is fixedly connected with the bearing substrate (8), the upper surface of the bearing substrate (8) is provided with an impedance network circuit assembly (9), and the bearing substrate (8) is provided with a through hole (10); The support assembly (11) is arranged between the right side of the bearing substrate (8) and the right side of the inside of the installation shell (1).

2. A pull-out assembly impedance network device for easy access according to claim 1, wherein: Both sides of the ventilation slot (2) are provided with a dust screen cover, and the cooling fan (12) is located on the left side of the dust screen cover.

3. A pull-out assembly impedance network device for easy access according to claim 1, wherein: The left side wall of the pull-out plate (4) is provided with a handle (6), and the pull-out plate (4) is provided with a wire slot (5).

4. The pull-out assembly impedance network device of claim 1, wherein: The right lower side of the pull-out plate (4) is fixedly connected with a clamping frame (7), the right side wall of the clamping frame (7) is recessed to form a clamping groove, the left side of the bearing substrate (8) is embedded in the clamping groove, and the bearing substrate (8) and the clamping frame (7) are connected by screws.

5. The pull-out assembly impedance network device of claim 1, wherein: The support assembly (11) includes a sleeve (111) fixedly connected to the right side wall of the bearing substrate (8) and a plug-in column (112) fixedly connected to the right side wall inside the installation shell (1), the plug-in column (112) corresponds to the position of the sleeve (111), the left side of the plug-in column (112) is provided with a rubber ball (113), and the diameter of the rubber ball (113) is greater than the inner cavity diameter of the sleeve (111).

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