CN108390167B - Electrical cabinet grounding device with real-time grounding state detection and alarm functions - Google Patents
Electrical cabinet grounding device with real-time grounding state detection and alarm functions Download PDFInfo
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- CN108390167B CN108390167B CN201810417213.2A CN201810417213A CN108390167B CN 108390167 B CN108390167 B CN 108390167B CN 201810417213 A CN201810417213 A CN 201810417213A CN 108390167 B CN108390167 B CN 108390167B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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Abstract
本发明的电器柜接地装置，其特征在于：包括接地预埋板、外套筒、内套筒和导电插杆，外套筒固定于接地预埋板上，外套筒内部设置有固定于接地预埋板上的导电弹簧片；内套筒与外套筒经螺纹连接；内套筒的顶端固定有顶板，顶板上开设有通孔，导电插杆位于内套筒中并贯穿于通孔设置，导电插杆位于通孔两侧处均设置有限位板，导电插杆的顶端设置有接地端子。本发明的电器柜接地装置，通过将内套筒旋进至外套筒中，实现设备接地。当需要搬运或移动设备时，无需断开接地线与接地端子，通过将内套筒从外套筒中旋出，即可将接电线、内套筒和导电插杆随设备一起移动，避免了以往接地线不便于移动或需破坏接地线的弊端。
The electrical cabinet grounding device of the present invention is characterized by: including a grounding embedded plate, an outer sleeve, an inner sleeve and a conductive plug rod. The outer sleeve is fixed on the grounding embedded plate, and the outer sleeve is provided with a grounding rod inside The conductive spring piece is on the embedded plate; the inner sleeve and the outer sleeve are connected by threads; the top of the inner sleeve is fixed with a top plate, a through hole is provided on the top plate, and the conductive insertion rod is located in the inner sleeve and runs through the through hole. , the conductive insertion rods are provided with limit plates on both sides of the through hole, and the top of the conductive insertion rods is provided with a ground terminal. The electrical cabinet grounding device of the present invention realizes equipment grounding by screwing the inner sleeve into the outer sleeve. When the equipment needs to be transported or moved, there is no need to disconnect the ground wire and ground terminal. By unscrewing the inner sleeve from the outer sleeve, the connecting wire, inner sleeve and conductive plug rod can be moved with the equipment, avoiding the need for In the past, grounding wires were difficult to move or required to be destroyed.
Description
技术领域Technical field
本发明涉及一种电器柜接地装置，更具体的说，尤其涉及一种具有实时检测接地状态和报警功能的电器柜接地装置。The present invention relates to an electrical cabinet grounding device, and more specifically, to an electrical cabinet grounding device with real-time grounding status detection and alarm functions.
背景技术Background technique
接地装置是把电气设备或其他物件和地之间构成电气连接的设备，用以实现电气系统与大地相连接的目的，可赋以某种电气功能，例如用以作系统接地、保护接地或信号接地。安装电气设备的电气柜底部往往安装有接地装置，以便让电气柜中的电气设备独立地接地连接。然而现有的接地装置设计比较传统，安装起来非常麻烦。在电气柜需要拆卸搬运或挪动位置时，现有的接地装置分离十分麻烦，给电气柜的拆装增添诸多不便。A grounding device is a device that forms an electrical connection between electrical equipment or other objects and the ground. It is used to connect the electrical system to the earth. It can be given some electrical function, such as system grounding, protective grounding or signal. Ground. The bottom of the electrical cabinet where electrical equipment is installed is often equipped with a grounding device to allow the electrical equipment in the electrical cabinet to be independently grounded. However, the existing grounding devices are relatively traditional in design and very troublesome to install. When the electrical cabinet needs to be disassembled, transported or moved, it is very troublesome to separate the existing grounding device, which adds a lot of inconvenience to the disassembly and assembly of the electrical cabinet.
而且现有的接地装置基本是一次安装、终生使用，受工作环境的影响，使用过程中可能会出现接地装置接地失效或不良的现象，如果不能及时发现，如果设备的出现高压漏电，可能会导致整个设备带电，进而会引发触电事故；如果是信号接地不良，则会导致设备的数据无法正常传输。Moreover, the existing grounding devices are basically installed once and used for life. Due to the influence of the working environment, grounding failure or poor grounding of the grounding device may occur during use. If it is not discovered in time, if high-voltage leakage occurs in the equipment, it may cause The entire device is charged, which may cause an electric shock accident; if the signal grounding is poor, the data of the device may not be transmitted normally.
发明内容Contents of the invention
本发明为了克服上述技术问题的缺点，提供了一种具有实时检测接地状态和报警功能的电器柜接地装置。In order to overcome the shortcomings of the above technical problems, the present invention provides an electrical cabinet grounding device with real-time detection of grounding status and alarm function.
本发明的具有实时检测接地状态和报警功能的电器柜接地装置，其特征在于：包括接地预埋板、外套筒、内套筒和导电插杆，外套筒固定于接地预埋板上，外套筒的内壁上设置有内螺纹，外套筒内部空腔的底部设置有固定于接地预埋板上的导电弹簧片；内套筒的外壁上设置有与外铜套上内螺纹相配合的外螺纹，以实现内套筒与外套筒的螺纹连接；内套筒的顶端固定有顶板，顶板上开设有通孔，导电插杆位于内套筒中并贯穿于通孔设置，导电插杆与通孔间隙配合，导电插杆位于通孔两侧处均设置有限位板，所述导电插杆的顶端设置有与接地线相连接的接地端子。The electrical cabinet grounding device of the present invention with real-time detection of grounding status and alarm function is characterized in that it includes a grounding embedded plate, an outer sleeve, an inner sleeve and a conductive plug rod, and the outer sleeve is fixed on the grounding embedded plate. The inner wall of the outer sleeve is provided with internal threads, and the bottom of the inner cavity of the outer sleeve is provided with a conductive spring piece fixed on the grounded embedded plate; the outer wall of the inner sleeve is provided with internal threads that match the outer copper sleeve external thread to realize the threaded connection between the inner sleeve and the outer sleeve; a top plate is fixed on the top of the inner sleeve, and a through hole is provided on the top plate. The conductive insertion rod is located in the inner sleeve and runs through the through hole. The conductive insertion rod is The rod is spaced with the through hole, and the conductive insertion rod is provided with limit plates on both sides of the through hole. The top of the conductive insertion rod is provided with a ground terminal connected to the ground wire.
本发明的具有实时检测接地状态和报警功能的电器柜接地装置，所述导电弹簧片为上突的弧形形状，导电插杆的长度满足：内套筒旋入至外套筒中后，导电插杆对导电弹簧片处于施压状态。In the electrical cabinet grounding device with real-time detection of grounding status and alarm function of the present invention, the conductive spring piece has an upward protruding arc shape, and the length of the conductive insertion rod satisfies: after the inner sleeve is screwed into the outer sleeve, the conductive The insertion rod is in a pressurized state against the conductive spring piece.
本发明的具有实时检测接地状态和报警功能的电器柜接地装置，所述接地预埋板上固定有定位套，外套筒的下端以螺纹连接或过盈配合的方式固定于定位套上。In the electrical cabinet grounding device with real-time detection of grounding status and alarm function of the present invention, a positioning sleeve is fixed on the grounding embedded plate, and the lower end of the outer sleeve is fixed on the positioning sleeve in a threaded connection or interference fit.
本发明的具有实时检测接地状态和报警功能的电器柜接地装置，所述接地预埋板采用导电材料，外套筒、内套筒和顶板均采用硬质PVC塑料，内套筒和顶板为一体结构。In the electrical cabinet grounding device with real-time detection of grounding status and alarm function of the present invention, the grounding embedded plate is made of conductive material, the outer sleeve, the inner sleeve and the top plate are all made of hard PVC plastic, and the inner sleeve and the top plate are integrated structure.
本发明的具有实时检测接地状态和报警功能的电器柜接地装置，包括设备接地状态不良时发出报警信号的报警装置，报警装置由壳体、设置于壳体中的控制电路、扬声器和报警指示灯组成，扬声器和报警指示灯均设置于壳体上；导电插杆的顶端设置有第一测量接线端，接地预埋板上固定有第二测量接线端，控制电路经两条测量线缆分别与第一测量接线端和第二测量接线端相连接。The electrical cabinet grounding device of the present invention with real-time detection of grounding status and alarm function includes an alarm device that emits an alarm signal when the grounding status of the equipment is poor. The alarm device consists of a casing, a control circuit arranged in the casing, a speaker, and an alarm indicator light. It consists of a loudspeaker and an alarm indicator light installed on the casing; a first measurement terminal is provided at the top of the conductive plug rod, a second measurement terminal is fixed on the grounding embedded board, and the control circuit is connected to the ground through two measurement cables respectively. The first measurement terminal and the second measurement terminal are connected.
本发明的具有实时检测接地状态和报警功能的电器柜接地装置，所述控制电路由微控制器、电阻测量电路和电源模块组成，电阻测量电路的输入端与第一测量接线端和第二测量接线端相连接，输出端与微控制器相连接；电源模块给电阻测量电路、微控制器、报警指示灯、扬声器提供稳压直流电源。The electrical cabinet grounding device of the present invention has real-time detection of grounding status and alarm function. The control circuit is composed of a microcontroller, a resistance measurement circuit and a power module. The input end of the resistance measurement circuit is connected to the first measurement terminal and the second measurement terminal. The terminals are connected, and the output terminal is connected to the microcontroller; the power module provides regulated DC power to the resistance measurement circuit, microcontroller, alarm indicator light, and speaker.
本发明的有益效果是： 本发明的具有实时检测接地状态和报警功能的电器柜接地装置，外套筒固定于接地预埋板上，外套筒内设置有导电弹簧片，导电插杆设置于内套筒中并转动地设置于顶板上，导电插杆的顶端设置有接地端子；使用时，通过将内套筒旋进至外套筒中，即可实现导电插杆与导电弹簧片的电气连接，进而实现了导电插杆的接地，通过将设备的接地线连接在接地端子上，也实现了设备的接地。当需要搬运或移动设备时，无需断开接地线与接地端子（通常情况下为破坏性断开）的连接，通过将内套筒从外套筒中旋出，即可将接电线、内套筒和导电插杆随设备一起移动，避免了以往接地线不便于移动或需破坏接地线的弊端。The beneficial effects of the present invention are: In the electrical cabinet grounding device with real-time detection of grounding status and alarm function of the present invention, the outer sleeve is fixed on the grounding embedded plate, the outer sleeve is provided with a conductive spring piece, and the conductive plug rod is provided on The inner sleeve is rotatably installed on the top plate, and the top of the conductive plug rod is provided with a grounding terminal; when in use, by screwing the inner sleeve into the outer sleeve, the electrical connection between the conductive plug rod and the conductive spring piece can be realized. By connecting the grounding wire of the equipment to the grounding terminal, the grounding of the equipment is also realized. When the equipment needs to be transported or moved, there is no need to disconnect the ground wire from the ground terminal (usually a destructive disconnection). By unscrewing the inner sleeve from the outer sleeve, the connecting wire and the inner sleeve can be disconnected. The barrel and the conductive plug rod move together with the equipment, avoiding the disadvantages of the ground wire being inconvenient to move or having to be damaged in the past.
进一步地，通过设置由壳体、控制电路、扬声器和报警指示灯组成的报警装置，控制电路对导电插杆与接地预埋板之间的电阻测量，当电阻大于设定值时表明接地不良或接地断开，则发出声光报警装置，提醒相关人员进行检查和处理，解决了现有接地设备的接地状态无法实时监控的问题。Further, by setting up an alarm device consisting of a casing, a control circuit, a speaker and an alarm indicator light, the control circuit measures the resistance between the conductive plug rod and the grounded embedded plate. When the resistance is greater than the set value, it indicates poor grounding or If the grounding is disconnected, an audible and visual alarm device will be emitted to remind relevant personnel to perform inspection and processing, which solves the problem that the grounding status of existing grounding equipment cannot be monitored in real time.
附图说明Description of drawings
图1为本发明的具有实时检测接地状态和报警功能的电器柜接地装置的结构示意图；Figure 1 is a schematic structural diagram of an electrical cabinet grounding device with real-time grounding status detection and alarm functions of the present invention;
图2为本发明的具有实时检测接地状态和报警功能的电器柜接地装置的剖视图；Figure 2 is a cross-sectional view of the electrical cabinet grounding device with real-time grounding status detection and alarm functions of the present invention;
图3为本发明中内套筒旋进外套筒中的结构示意图；Figure 3 is a schematic structural diagram of the inner sleeve screwing into the outer sleeve in the present invention;
图4为本发明中控制电路的原理图。Figure 4 is a schematic diagram of the control circuit in the present invention.
图中：1接地预埋板，2外套筒，3内套筒，4顶板，5导电插杆，6导电弹簧片，7接地端子，8通孔，9限位板，10定位套，11报警装置，12第一测量接线端，13第二测量接线端，14扬声器，15报警指示灯，16测量线缆，17微控制器，18电阻测量电路，19电源模块。In the picture: 1 grounding embedded plate, 2 outer sleeve, 3 inner sleeve, 4 top plate, 5 conductive plug rod, 6 conductive spring leaf, 7 ground terminal, 8 through hole, 9 limit plate, 10 positioning sleeve, 11 Alarm device, 12 first measurement terminal, 13 second measurement terminal, 14 speaker, 15 alarm indicator light, 16 measurement cable, 17 microcontroller, 18 resistance measurement circuit, 19 power module.
具体实施方式Detailed ways
下面结合附图与实施例对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and examples.
如图1和图2所示，分别给出了本发明的具有实时检测接地状态和报警功能的电器柜接地装置的结构示意图和剖视图，所示的具有实时检测接地状态和报警功能的电器柜接地装置由接地预埋板1、外套筒2、内套筒3、顶板4、导电插杆5、导电弹簧片6和报警装置11组成，接地预埋板1用于固定在地面上或埋在地面之中，其由导电材料构成，以实现与大地或其他物体（如船舶）的电导通。外套筒2固定于接地预埋板1上，外套筒2的内壁上设置有内螺纹，导电弹簧片6为弧形形状，导电弹簧片6位于外套筒2内部空腔的底部，弧形的导电弹簧片6以上突的形式固定于接地预埋板1上，以实现与接地预埋板1的电连接。As shown in Figure 1 and Figure 2, respectively, the structural schematic diagram and the cross-sectional view of the electrical cabinet grounding device with real-time detection of grounding status and alarm function of the present invention are shown. The electrical cabinet grounding device with real-time detection of grounding status and alarm function is shown. The device consists of a grounding embedded plate 1, an outer sleeve 2, an inner sleeve 3, a top plate 4, a conductive plug rod 5, a conductive spring leaf 6 and an alarm device 11. The grounding embedded plate 1 is used to be fixed on the ground or buried in Among the ground, it is made of conductive materials to achieve electrical connection with the earth or other objects (such as ships). The outer sleeve 2 is fixed on the grounding embedded plate 1. The inner wall of the outer sleeve 2 is provided with internal threads. The conductive spring piece 6 is in an arc shape. The conductive spring piece 6 is located at the bottom of the internal cavity of the outer sleeve 2. The arc The conductive spring piece 6 is fixed on the grounding embedded plate 1 in the form of an upward protrusion to achieve electrical connection with the grounding embedded plate 1 .
所示内套筒3的外表面上设置有外螺纹，内套筒3的外径与外套筒2的内径相等，以便内套筒3与外套筒2螺纹连接，使得内套筒3插入外套筒2中。顶板4固定于内套筒3的上端，导电插杆5位于内套筒3的内部空腔中，顶板4上开设有通孔8，导电插杆5经通孔8穿出。导电插杆5与通孔为间隙配合，以保证导电插杆5在通孔8中可进行自由转动；导电插杆5上位于通孔8两侧的部位均固定有限位板9，以限制导电插杆5沿其径向方向运动。导电插杆5的顶端固定有与设备的接地线相连接的接地端子7。The outer surface of the inner sleeve 3 is provided with external threads, and the outer diameter of the inner sleeve 3 is equal to the inner diameter of the outer sleeve 2, so that the inner sleeve 3 and the outer sleeve 2 are threaded, so that the inner sleeve 3 can be inserted Outer sleeve 2. The top plate 4 is fixed on the upper end of the inner sleeve 3, and the conductive plug rod 5 is located in the internal cavity of the inner sleeve 3. The top plate 4 is provided with a through hole 8, and the conductive plug rod 5 passes through the through hole 8. The conductive insertion rod 5 and the through hole have a clearance fit to ensure that the conductive insertion rod 5 can rotate freely in the through hole 8; the parts on the conductive insertion rod 5 located on both sides of the through hole 8 are fixed with limit plates 9 to limit the conduction The plunger 5 moves in its radial direction. The top end of the conductive plug rod 5 is fixed with a ground terminal 7 connected to the ground wire of the equipment.
如图3所示，给出了本发明中内套筒旋进外套筒中的结构示意图，使用时，可首先将设备的接地线与接地端子7连接起来，然后通过工具将内套筒3旋入外套筒2中，在外套筒2旋转的过程中，导电插杆5不会跟随转动，避免了接电线发生转圈而被破坏；内套筒3旋入外套筒2中之后，导电插杆5顶在导电弹簧片6上，使得接地线通过导电插杆5、导电弹簧片6、接地预埋板1接地。当需要移动设备时，通过旋出内套筒3，即可断开设备接地线，而无需拆卸接地线或将其破坏，设备移动至另一位置后，可利用别的移走设备的外套筒，或仅设置接地预埋板1和外套筒2，又可实现设备的接地。As shown in Figure 3, a schematic diagram of the structure of the inner sleeve screwed into the outer sleeve in the present invention is given. When in use, the ground wire of the equipment can be connected to the ground terminal 7 first, and then the inner sleeve 3 can be screwed in using a tool. Screw it into the outer sleeve 2. When the outer sleeve 2 rotates, the conductive plug rod 5 will not follow the rotation, preventing the wires from rotating and being damaged. After the inner sleeve 3 is screwed into the outer sleeve 2, the conductive rod 5 will not rotate. The insertion rod 5 is pressed against the conductive spring piece 6 so that the grounding wire is grounded through the conductive insertion rod 5, the conductive spring piece 6 and the grounding embedded plate 1. When the equipment needs to be moved, the grounding wire of the equipment can be disconnected by unscrewing the inner sleeve 3 without disassembling the grounding wire or destroying it. After the equipment is moved to another location, the outer cover of the equipment can be removed using another device. sleeve, or only the grounding embedded plate 1 and the outer sleeve 2 are provided, and the grounding of the equipment can be realized.
为了实现外套筒2在接地预埋板1上的固定，可在接地预埋板1上固定定位套10，将外套筒2的下端固定于定位套10上。外套筒2可采用螺纹连接或过盈配合的方式固定于定位套10上。所示外套筒2、内套筒3、顶板4均采用硬质PVC材料，以保证接地装置外部的绝缘；内套筒3与顶板4为一体结构。In order to fix the outer sleeve 2 on the grounding embedded plate 1, the positioning sleeve 10 can be fixed on the grounding embedded plate 1, and the lower end of the outer sleeve 2 can be fixed on the positioning sleeve 10. The outer sleeve 2 can be fixed on the positioning sleeve 10 by threaded connection or interference fit. The outer sleeve 2, inner sleeve 3, and top plate 4 shown are all made of hard PVC material to ensure the insulation of the outside of the grounding device; the inner sleeve 3 and the top plate 4 are an integrated structure.
所示的报警装置11由壳体、设置于壳体中的控制电路、报警指示灯15、扬声器14组成，报警指示灯15和扬声器14设置于壳体上，实现声光报警作用。如图4所示，给出了本发明中控制电路的原理图，其由微控制器17、电阻测量电路18和电源模块19组成，微控制器17具有采集、运算和控制作用，电源模块19给各模块的工作提供稳定的直流电压。导电插杆5的顶端设置有第一测量接线端12，接地预埋板1上固定有第二测量接线端13。The alarm device 11 shown is composed of a casing, a control circuit arranged in the casing, an alarm indicator light 15, and a speaker 14. The alarm indicator light 15 and the speaker 14 are arranged on the casing to realize the sound and light alarm function. As shown in Figure 4, a schematic diagram of the control circuit in the present invention is given, which is composed of a microcontroller 17, a resistance measurement circuit 18 and a power module 19. The microcontroller 17 has the functions of acquisition, calculation and control, and the power module 19 Provide stable DC voltage for the operation of each module. A first measurement terminal 12 is provided at the top of the conductive insertion rod 5 , and a second measurement terminal 13 is fixed on the grounding embedded plate 1 .
电阻测量电路18经两测量线缆16分别与电阻测量电路18的输入端相连接，电阻测量电路18的输出与微控制器17相连接，使得微控制器17获取第一测量接线端12与第二测量接线端13之间的电阻值。当微控制器17检测到第一测量接线端12与第二测量接线端13之间的电阻值超过设定值时，则控制报警指示灯15和扬声器14发出声光报警信号，以提醒设备接地出现故障，以便相关人员采取措施。The resistance measurement circuit 18 is connected to the input end of the resistance measurement circuit 18 via two measurement cables 16 respectively. The output of the resistance measurement circuit 18 is connected to the microcontroller 17 so that the microcontroller 17 obtains the first measurement terminal 12 and the second measurement terminal 12 . 2. Measure the resistance between terminals 13. When the microcontroller 17 detects that the resistance value between the first measurement terminal 12 and the second measurement terminal 13 exceeds the set value, it controls the alarm indicator light 15 and the speaker 14 to send out an audible and visual alarm signal to remind the equipment to be grounded. A fault occurs so that relevant personnel can take measures.
Claims (4)
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| CN109470976B (en) * | 2018-11-09 | 2024-03-15 | 珠海优特电力科技股份有限公司 | Grounding wire device and state detection method thereof |
| CN110519948B (en) * | 2019-08-09 | 2024-10-29 | 置恒卓能电气科技(滁州)有限公司 | Blind-plugging ground clamping piece structure of electric cabinet |
| CN110504605A (en) * | 2019-09-18 | 2019-11-26 | 上海阿卡得电子有限公司 | Earthing switch connector |
| CN110911857B (en) * | 2019-11-29 | 2025-01-28 | 国网安徽省电力有限公司超高压分公司 | Connecting assembly for short-circuit grounding wire and short-circuit grounding device having the same |
| CN113567893B (en) * | 2021-06-29 | 2024-07-05 | 华能巢湖发电有限责任公司 | Ground wire joint monitoring device connected with Internet of things |
| CN113805001A (en) * | 2021-09-09 | 2021-12-17 | 湖南电科院检测集团有限公司 | High-voltage product test device with protective measures |
| CN115799856A (en) * | 2022-11-10 | 2023-03-14 | 中国人民解放军空军勤务学院 | A grounding device for an airport ground power supply vehicle |
| CN115939796A (en) * | 2022-12-14 | 2023-04-07 | 广西电网有限责任公司河池供电局 | Low-voltage quick grounding device and method with reliable grounding detection |
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