High-voltage cable equipment suitable for multiple security inspection equipment

Abstract

The utility model provides a high-voltage cable device suitable for a plurality of security inspection devices, and relates to the technical field of security inspection devices. The plurality of security inspection devices are located in the same security inspection area, and the high-voltage cable device suitable for the plurality of security inspection devices comprises a high-voltage power supply suitable for providing a high voltage of 50-300 kilovolts; the first end of the first cable is electrically connected with the high-voltage power supply; a plurality of second cables, wherein the first end of each second cable is electrically connected with an X-ray tube of security inspection equipment; and the branching device is electrically connected with the second end of the first cable and the second ends of the plurality of second cables so as to supply power to the plurality of X-ray tubes through the high-voltage power supply.

Description

TECHNICAL FIELD

[0001] At least one embodiment of the utility model relates to security check equipment technical field, especially suitable for a plurality of security check equipment's high pressure cable equipment. BACKGROUND

[0002] In the security check field, the X-ray for carrying out security check is emitted by the light pipe (or called X-ray tube) under the action of high voltage power supply. In some security check equipment, the light source, light pipe and high voltage power supply are usually separately arranged, and the high voltage cable is used to electrically connect the high voltage power supply and the light pipe.

[0003] Some static computer tomography (CT) security check equipment in the security check field needs to use multiple light sources, and each light source needs to be connected with the high voltage power supply.

[0004] In the related art, one scheme is to use multiple high voltage power supplies, that is, multiple security check equipment located in the same security check area needs to be configured with multiple high voltage power supplies, each high voltage power supply is assembled with a high voltage socket, and each light pipe is connected to a high voltage power supply through a high voltage cable with a plug. In this scheme, multiple power supplies are needed for multiple security check equipment located in the same security check area, the cost is high (the high voltage socket is a high-cost material in the high voltage power supply), and the space occupied is large.

[0005] Another scheme is to use one high voltage power supply with multiple high voltage sockets, that is, multiple security check equipment located in the same security check area is configured with one high voltage power supply, multiple high voltage sockets are assembled on the high voltage power supply, and each high voltage socket is connected with each light pipe through a high voltage cable. In this scheme, the high voltage cable and the high voltage socket matched with the high voltage cable are also relatively high in price, which also increases the manufacturing cost, and the high voltage power supply is installed with multiple sockets, so the volume of the high voltage power supply cannot be reduced due to the large volume of the high voltage socket. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a high voltage cable equipment suitable for multiple security check equipment, which can reduce the use amount of high voltage cable, high voltage plug and high voltage socket.

[0007] As an aspect of the utility model embodiment, a high voltage cable equipment suitable for multiple security check equipment is provided, and the multiple security check equipment is located in the same security check area, and the equipment is characterized by comprising a high voltage power supply, a first cable, multiple second cables and a cable distribution device. The high voltage power supply is suitable for providing high voltage of 50-300 kilovolts; the first end of the first cable is electrically connected with the high voltage power supply; the first end of each second cable is electrically connected with the X-ray tube of the security check equipment; the second end of the first cable and the second end of the multiple second cables are electrically connected through the cable distribution device, so as to supply power to the multiple X-ray tubes through the high voltage power supply.

[0008] According to the embodiment of the utility model, the first cable and the plurality of second cables are arranged in the cavity of the shell, and the first cable and the plurality of second cables are electrically isolated from the shell.

[0009] According to the embodiment of the utility model, a plurality of through holes are formed in the equalizing piece, and the wires of the first cable and the plurality of second cables are respectively inserted into the through holes to electrically connect the wires of the first cable and the plurality of second cables to the equalizing piece by welding.

[0010] According to the embodiment of the utility model, the shell comprises two oppositely arranged halves, and the cavity is formed between the two halves; wherein a plurality of arc-shaped grooves are formed on the side walls of each half, and the arc-shaped grooves on the two halves are oppositely arranged to form a wire passing hole, the first cable and the second cable pass through the wire passing hole and extend into the cavity, and the wires of the first cable and the plurality of second cables are arranged on the equalizing piece.

[0011] According to the embodiment of the utility model, a closable filling hole is formed in the shell, and the distribution device further comprises an insulating filler, and the liquid insulating material flows into the cavity from the filling hole and is filled between the shell and the equalizing piece to form the insulating filler after the insulating material solidifies, thereby limiting the relative position between the equalizing piece and the shell.

[0012] According to the embodiment of the utility model, the insulating layer of the first cable and the insulating layer of each second cable are at least partially arranged in the shell and in contact with the insulating filler, so as to disperse the force in the direction away from the equalizing piece by the friction between the insulating layer of the first cable and the insulating layer of each second cable through the insulating filler.

[0013] According to the embodiment of the utility model, the first cable and each second cable further comprise a shielding layer and a protective shell. The shielding layer is arranged outside the insulating layer; the protective shell is arranged outside the shielding layer; wherein the shielding layer of the first cable is electrically connected to the shielding layer of each second cable.

[0014] According to the embodiment of the present application, the shell is made of conductive material, and the shielding layer of the first cable and the shielding layer of each second cable are electrically connected through the shell.

[0015] According to the embodiment of the present application, the first cable and each second cable further comprise a plug, which is installed at the other end of the first cable and each second cable connected with the voltage equalizing member; wherein the high-voltage power supply and each X-ray tube are provided with a socket matched with the plug, so that the high-voltage power supply supplies power to each X-ray tube through the matching of the socket and the plug.

[0016] According to the embodiment of the present application, the voltage equalizing member is a voltage equalizing ball or a voltage equalizing ring.

[0017] According to the embodiment of the present application, the high-voltage cable device suitable for multiple security inspection devices, the first cable and the multiple second cables are electrically connected through the cable branching device, and the X-ray tubes (light tubes) on the multiple security inspection devices in the same security inspection area are respectively provided with stable high-voltage power supply through the high-voltage power supply, the total length and the number of required high-voltage cables are reduced, and the cost of the security inspection device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent from the following description of the preferred embodiments of the present application taken with reference to the accompanying drawings, in which:

[0019] Figure 1 The composition diagram of the high-voltage cable device suitable for multiple security inspection devices according to the embodiment of the present application is schematically shown; and

[0020] Figure 2 The sectional view of the cable branching device according to the embodiment of the present application is schematically shown.

[0021] The reference signs are explained as follows:

[0022] 1 - high-voltage power supply;

[0023] 2 - first cable;

[0024] 21 - wire;

[0025] 22 - insulating layer;

[0026] 23 - shielding layer;

[0027] 24 - protective shell;

[0028] 3 - second cable;

[0029] 31 - wire;

[0030] 32 - insulating layer;

[0031] 33 - shielding layer;

[0032] 34 - protective shell;

[0033] 4 - branching device;

[0034] 41 - housing;

[0035] 42 - equalizing member;

[0036] 43 - insulating filler;

[0037] 5 - X-ray tube;

[0038] 6 - plug. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific embodiments and drawings.

[0040] The terms used herein are merely used to describe specific embodiments, and are not intended to limit the present application. The terms "include", "comprise" and the like used herein indicate the presence of the features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0041] All terms used herein, including technical and scientific terms, have meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted in a manner consistent with the context of the present specification, and should not be interpreted in an idealized or overly formal manner.

[0042] In the case of using expressions such as "at least one of A, B, and C, etc.", it should be generally interpreted to include at least one of each item, unless otherwise defined. For example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, a system having B alone, a system having C alone, a system having both A and B, a system having both A and C, a system having both B and C, and / or a system having A, B, and C, etc. In the case of using expressions such as "at least one of A, B, or C, etc.", it should be generally interpreted to include at least one of each item, unless otherwise defined. For example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, a system having B alone, a system having C alone, a system having both A and B, a system having both A and C, a system having both B and C, and / or a system having A, B, and C, etc.

[0043] It should be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only the directions of the drawings and are not intended to limit the protection scope of the utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. When it may cause confusion to the understanding of the utility model, the conventional structure or configuration will be omitted.

[0044] Figure 1 A constituent diagram of the high-voltage cable device suitable for multiple security inspection devices according to the embodiment of the utility model is schematically shown.

[0045] As an aspect of the embodiment of the utility model, a high-voltage cable device suitable for multiple security inspection devices is provided, and the multiple security inspection devices are located in the same security inspection area, such as Figure 1 As shown, the high-voltage cable device comprises a high-voltage power supply 1, a first cable 2, multiple second cables 3 and a cable distribution device 4. The high-voltage power supply 1 is suitable for providing high voltage of 50-300 kilovolts. The first end of the first cable 2 is electrically connected with the high-voltage power supply 1. The first end of each second cable 3 is electrically connected with the X-ray tube 5 of the security inspection device. The cable distribution device 4 is electrically connected with the second end of the first cable 2 and the second end of the multiple second cables 3, so as to supply power to the multiple X-ray tubes 5 through the high-voltage power supply 1.

[0046] According to the high-voltage cable device suitable for multiple security inspection devices of the embodiment of the utility model, the first cable and the multiple second cables are electrically connected through the cable distribution device. The X-ray tube (light tube) on the multiple security inspection devices located in the same security inspection area is respectively provided with stable high-voltage power supply through the high-voltage power supply. The total length and the number of the required high-voltage cables are reduced, thereby reducing the cost of the security inspection device.

[0047] According to the embodiment of the utility model, the first cable and each second cable are high-voltage cables.

[0048] In an illustrative embodiment, the high-voltage power supply 1 can provide high voltage of any one of 50 kilovolts (kV), 100 kV, 150 kV, 200 kV, 260 kV and 300 kV, etc.

[0049] According to the embodiment of the utility model, as shown in Figure 1 The first cable and each second cable further comprise a plug 6. The plug 6 is installed at the other end of the first cable 2 and each second cable 3 which is connected with the voltage equalizing piece 42 (to be described later with reference to Figure 2 The high-voltage power supply 1 and each X-ray tube 5 are installed with a socket matched with the plug 6, so that the high-voltage power supply 1 supplies power to each X-ray tube 5 through the matching of the socket and the plug.

[0050] In such embodiments, the cooperation of the plug and the socket allows the high-voltage cable to be quickly connected and disconnected with the high-voltage power supply 1 and each X-ray tube, improving installation efficiency and maintenance efficiency. Moreover, the configuration of the plug and the socket can ensure that consistent contact pressure and electrical connection are maintained each time the connection is made, reducing the risk of poor connection.

[0051] According to embodiments of the present application, the high-voltage cable device for multiple security inspection devices only needs one socket at the high-voltage power supply end for multiple security inspection devices located in the same security inspection area, thereby reducing the cost of the high-voltage power supply and facilitating the reduction in the size of the high-voltage power supply.

[0052] According to embodiments of the present application, the connection of the high-voltage cable plug and the cable uses insulating silicone grease, which needs to be maintained regularly. The high-voltage cable device for multiple security inspection devices provided by the present application reduces the number of connections between the high-voltage socket and the high-voltage cable, thereby reducing the maintenance time and improving reliability.

[0053] Figure 2 A cross-sectional view of the branching device according to embodiments of the present application is schematically shown.

[0054] According to embodiments of the present application, as shown in Figure 2 The branching device 4 includes a housing 41 and a voltage equalizing member 42. The housing 41 forms a cavity inside, and the voltage equalizing member 42 is installed in the cavity and electrically isolated from the housing 41. The conductive wire 21 of the first cable 2 and the conductive wires 31 of the multiple second cables 3 are both installed on the voltage equalizing member 42 at intervals, so as to substantially equally distribute the high voltage from the first cable 2 to each second cable 3 through the voltage equalizing member 42, thereby providing substantially consistent voltage to each X-ray tube 5.

[0055] In such embodiments, by providing the voltage equalizing member 42, the high voltage provided by the high-voltage power supply 1 can be substantially equally distributed to each second cable 3, thereby ensuring that the high voltage received by each X-ray tube 5 is substantially consistent, and ensuring the stability of the working performance of all security inspection devices. The conductive wire 21 of the first cable 2 and the conductive wires 31 of the multiple second cables 3 are installed on the voltage equalizing member at intervals, thereby reducing the risk of arc discharge between the high-voltage cables and improving the safety of the branching device 4.

[0056] In one illustrative embodiment, the voltage equalizing member 42 is a voltage equalizing ball or a voltage equalizing ring.

[0057] According to embodiments of the present application, the material of the voltage equalizing member 42 has good electrical conductivity and high-voltage resistance, for example, the material of the voltage equalizing member can be copper, silver, stainless steel, etc.

[0058] In one illustrative embodiment, the housing 41 can be a cube, a cuboid, or a spherical structure.

[0059] According to the embodiment of the utility model, the plurality of through holes are formed on the voltage equalizing piece 42, the wire 21 of the first cable 2 and the wires 32 of the plurality of second cables 3 are respectively inserted into the through holes, and the wire 21 of the first cable 2 and the wires 31 of the plurality of second cables 3 are respectively electrically connected with the voltage equalizing piece 42 by welding.

[0060] According to the embodiment of the utility model, the wire 21 of the first cable 2 and the wires 31 of the plurality of second cables 3 are respectively inserted into the plurality of through holes one by one, and the wire 21 of the first cable 2 and the wires 31 of the plurality of second cables 3 are respectively electrically connected with the voltage equalizing piece 42 by welding, so that the welding points of the connection between each wire (that is, the wire 21 of the first cable 2 and the wire 31 of each second cable 3) and the voltage equalizing piece 42 can withstand long-term operation in a high-voltage environment, and the connection loosening caused by vibration or temperature change is reduced. Moreover, the welding points provide good electrical contact between the wires and the voltage equalizing piece 42, reduce the contact resistance, and reduce the energy loss and heating caused by the resistance.

[0061] According to the embodiment of the utility model, the voltage equalizing piece 42 can be a hollow spherical body or a ring structure.

[0062] According to the embodiment of the utility model, as shown in Figure 2 The shell 41 includes two oppositely mounted halves, and a cavity is formed between the two halves. Wherein, a plurality of arc-shaped grooves are formed on the side wall of each half, and the arc-shaped grooves on the two halves are oppositely arranged to form a wire passing hole. The first cable 2 and the plurality of second cables 3 respectively pass through the wire passing hole and extend into the cavity, and the wire 21 of the first cable 2 and the wire 31 of the plurality of second cables 3 are mounted on the voltage equalizing piece 42.

[0063] In such an embodiment, the cavity between the two halves can be easily opened and closed by oppositely mounting the two halves, which facilitates the installation and inspection of the voltage equalizing piece and the wire, and simplifies the maintenance operation.

[0064] According to the embodiment of the utility model, the plurality of wire passing holes are one-to-one corresponding to the plurality of through holes formed on the voltage equalizing piece 42, so that the first cable and the plurality of second cables can be welded to the through holes after passing through the wire passing holes, avoiding the bending of the first cable and the second cable in the shell, avoiding poor heat dissipation caused by the bending of the high-voltage cable, and helping to maintain the stable temperature of the equipment during long-time operation.

[0065] In an exemplary embodiment, the two halves can be tightly connected by the cooperation of screws and nuts.

[0066] According to the embodiment of the utility model, as shown in Figure 2As shown, the shell 41 is formed with a closable filling hole (not shown in the figure), and the distribution device further comprises an insulating filler 43.

[0067] According to the embodiment of the utility model, the solidified insulating filler 43 can fix the position of the equalizing piece 42 in the shell 41, prevent the equalizing piece 42 from moving in the shell 41 due to vibration or other external force, effectively isolate the electrical connection between the equalizing piece 42 and the shell 41, prevent electric leakage and short circuit, and improve the insulation performance and stability of the distribution device 4.

[0068] According to the embodiment of the utility model, the filling hole is located on one of the two half bodies and is arranged in the interval of the arc-shaped groove.

[0069] According to the embodiment of the utility model, the equalizing piece welded with the first cable and the plurality of second cables can be placed in one of the two half bodies, the cavity is closed by the other half body, then the liquid insulating material is filled into the cavity from the filling hole by placing the closed shell in a negative pressure environment (or vacuum environment), the cavity is filled with the liquid insulating material, and the insulating filler is formed after the solidification of the insulating material, thereby limiting the relative position between the equalizing piece and the shell.

[0070] In an exemplary embodiment, the insulating filler 43 can be made of silicone rubber.

[0071] According to the embodiment of the utility model, as shown, Figure 2 As shown, the insulating layer 22 of the first cable 2 and the insulating layer 32 of each second cable 3, which are sleeved outside the wires 21 and 31 respectively, at least partially extend into the shell 41 and contact the insulating filler 43, so as to disperse the force in the direction away from the equalizing piece 42, which is received by the wires 21 of the first cable 2 and the wires 32 of each second cable 3, through the friction between the insulating filler 43 and the insulating layers 22 and 32 of the first cable 2 and each second cable 3 respectively.

[0072] In such an embodiment, by making the insulating layers of the first cable and the second cable at least partially extend into the cavity, the liquid insulating material is filled around the insulating layers, and the insulating filler is formed outside the insulating layers after the solidification of the insulating material, so as to have a large friction between the insulating filler and the insulating layers, prevent the relative movement of the cables in the shell, thereby reducing the dragging of at least one of the first cable and the plurality of second cables when moving the high-voltage cable equipment, causing damage to the welding points between the wires and the equalizing piece, enhancing the stability of the cables, and prolonging the service life of the high-voltage cable equipment.

[0073] According to the embodiment of the utility model, as shown,Figure 2 As shown, the first cable 2 and each second cable 3 further respectively comprise a shielding layer and a protective shell. The shielding layer is sleeved outside the insulating layer, and the protective shell is sleeved outside the shielding layer. The shielding layer of the first cable is electrically connected with the shielding layer of each second cable.

[0074] In such an embodiment, by electrically connecting the shielding layer 23 of the first cable 2 and the shielding layers 33 of the plurality of second cables 3, the plurality of shielding layers form a unified shielding body, which can balance the potential between the shielding layers of the cables and reduce interference caused by potential differences. Moreover, the shielding layers of all the cables can be connected to the same grounding point, which simplifies the grounding system and improves the reliability of grounding.

[0075] According to the embodiment of the utility model, as shown in the figure, Figure 2 The first cable 2 comprises a wire 21, an insulating layer 22, a shielding layer 23 and a protective shell 24. The insulating layer 22 is sleeved outside the wire 21, the shielding layer 23 is sleeved outside the insulating layer 22, the protective shell 24 is located in the outermost layer, and the protective shell 24 is sleeved outside the shielding layer 23.

[0076] According to the embodiment of the utility model, as shown in the figure, Figure 2 The second cable 3 comprises a wire 31, an insulating layer 32, a shielding layer 33 and a protective shell 34. The insulating layer 32 is sleeved outside the wire 31, the shielding layer 33 is sleeved outside the insulating layer 32, the protective shell 34 is located in the outermost layer, and the protective shell 34 is sleeved outside the shielding layer 33.

[0077] According to the embodiment of the utility model, as shown in the figure, Figure 2 The shell 41 is made of conductive material, and the shielding layer of the first cable is electrically connected with the shielding layer of each second cable through the shell.

[0078] In such an embodiment, the electrical connection between the shielding layer of the first cable and the shielding layers of the plurality of second cables is realized through the shell, so that the plurality of shielding layers form a unified shielding body, which reduces mutual interference between the plurality of cables. Moreover, the shielding layer of the first cable and the shielding layers of the plurality of second cables are interconnected through the shell to form a larger shielding net, which can more effectively shield external electromagnetic interference, thereby improving the overall shielding effect.

[0079] According to the embodiment of the utility model, the shell 41 is made of conductive material, and the shell formed by the two halves can provide better electromagnetic shielding effect, reduce external electromagnetic interference and ensure stable transmission of signals.

[0080] According to the embodiment of the utility model, the shielding layer of the first cable and the shielding layers of the plurality of second cables can be electrically connected with the shell through welding or through bolts.

[0081] In an illustrative embodiment, the material of the housing can be a metal material, such as any of stainless steel, copper, iron, alloys, etc.

[0082] The embodiments of the present application are described above. However, these embodiments are only for illustrative purposes, and are not intended to limit the scope of the present application. Although each embodiment is described above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. The scope of the present application is defined by the appended claims and their equivalents. Without departing from the scope of the present application, those skilled in the art can make various substitutions and modifications, and these substitutions and modifications should all fall within the scope of the present application.

Claims

1. A high-voltage cable device applicable to multiple security inspection devices, wherein the multiple security inspection devices are located in the same security inspection area, characterized in that, include: High-voltage power supply, suitable for providing high voltage from 50 to 300 kV; A first cable, the first end of which is electrically connected to the high-voltage power supply; Multiple second cables, each second cable having its first end electrically connected to the X-ray tube of the security inspection equipment; as well as A splitter is electrically connected to the second end of the first cable and the second ends of a plurality of second cables to power a plurality of X-ray tubes via the high-voltage power supply.

2. The high-voltage cable equipment according to claim 1, characterized in that, The branching device includes: The shell has an internal cavity; and A pressure equalizing component is installed inside the cavity and is electrically isolated from the housing. The conductors of the first cable and the conductors of the plurality of second cables are all installed at intervals on the voltage equalization device, so as to distribute the high voltage from the first cable evenly to each of the second cables through the voltage equalization device, thereby providing a consistent voltage to each X-ray tube.

3. The high-voltage cable equipment according to claim 2, characterized in that, The equalizing component has multiple through holes. The wires of the first cable and the wires of the multiple second cables are respectively inserted into the through holes so that the wires of the first cable and the wires of the multiple second cables are electrically connected to the equalizing component by welding.

4. The high-voltage cable equipment according to claim 2, characterized in that, The housing includes: Two opposing halves, with the cavity formed between the two halves; In this embodiment, multiple arc-shaped grooves are formed on the sidewall of each half, and the arc-shaped grooves on two half are arranged opposite each other to form a wire passage hole. The first cable and the second cable pass through the wire passage hole and extend into the cavity, and the wires of the first cable and the wires of the multiple second cables are installed on the voltage equalizing component.

5. The high-voltage cable equipment according to claim 2, characterized in that, The housing has a sealable filling hole, and the branching device further includes: An insulating filler, a liquid insulating material, flows into the cavity from the filling hole and fills the space between the housing and the equalizing member, so as to form the insulating filler after the insulating material has solidified, thereby restricting the relative position between the equalizing member and the housing.

6. The high-voltage cable equipment according to claim 5, characterized in that, The insulation layer of the first cable and the insulation layer of each second cable extending at least partially into the housing and in contact with the insulating filler are used to disperse the force on the conductors of the first cable and each second cable away from the equalizing member through the friction between the insulating filler and the insulation layer of the first cable and the insulation layer of each second cable respectively.

7. The high-voltage cable equipment according to claim 6, characterized in that, The first cable and each of the second cables further include: A shielding layer, fitted over the insulating layer; and A protective shell is fitted over the shielding layer; The shielding layer of the first cable is electrically connected to the shielding layer of each of the second cables.

8. The high-voltage cable equipment according to claim 7, characterized in that, The housing is made of conductive material, and the shielding layer of the first cable is electrically connected to the shielding layer of each of the second cables through the housing.

9. The high-voltage cable equipment according to any one of claims 2-8, characterized in that, The first cable and each of the second cables further include: A plug is installed at the other end of the first cable and each of the second cables that is connected to the equalizing element; The high-voltage power supply and each of the X-ray tubes are equipped with a socket that mates with the plug, so that the high-voltage power supply can supply power to each of the X-ray tubes through the cooperation of the socket and the plug.

10. The high-voltage cable equipment according to any one of claims 2-8, characterized in that, The pressure equalizing component is either a pressure equalizing ball or a pressure equalizing ring.

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