CN211126137U - Grounding device - Google Patents
Grounding device Download PDFInfo
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- CN211126137U CN211126137U CN201922248454.1U CN201922248454U CN211126137U CN 211126137 U CN211126137 U CN 211126137U CN 201922248454 U CN201922248454 U CN 201922248454U CN 211126137 U CN211126137 U CN 211126137U
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Abstract
The utility model is suitable for a power equipment field provides a grounding device, include: the magnetic attraction type ground wire joint is used for being in magnetic attraction fit with the conductor end of the equipment to be grounded and forming electrical connection; the grounding clamping device is used for being electrically connected with a grounding system; the wire is used for electrically connecting the magnetic attraction type ground wire joint and the grounding clamping device; based on the structure, the quick magnetic attraction butt joint can be realized only by moving the magnetic attraction type ground wire connector to the conductor end of the equipment to be grounded, so that the work of installing the ground wire is completed, the time for hanging the ground wire is reduced, and the labor cost is saved; especially when running into operating space limited or electrical equipment installs inside the box, the advantage of above-mentioned way is more obvious, and is more convenient than traditional operation mode, and ground connection is more stable, reliable.
Description
Technical Field
The utility model belongs to the power equipment field especially relates to a grounding device.
Background
When electrical equipment is overhauled, in order to ensure the safety of operating personnel, the technical measures which are adopted include power failure, electricity inspection, ground wire hanging, arrangement of a barrier and a nameplate; the hanging wire is an important technical measure for ensuring personal safety, personal injury to operators when electrical equipment is powered on accidentally can be prevented after the wire is hung, and the grounding wire is also called as a 'life line' of the operators.
The traditional mode of hanging the wire is that after a wire clamp or a clamp at the head of the grounding wire is connected with the conductor end of the electrical equipment, the grounding wire clamp and the conductor of the equipment are reliably clamped by continuously rotating the grounding operating rod. The length of the grounding operating rod is determined by the voltage level of the electrical equipment, and the higher the voltage level is, the longer the operating rod is. The length of the 35kV grounding operating rod reaches 1.5 m, and when the 35kV grounding operating rod is applied to a narrow space or electrical equipment is arranged in a box body, the 35kV grounding operating rod is limited by space, so that an operator is very difficult to install and disassemble a grounding wire, and wastes time and labor; and the conductor end clamp or the clamp of the grounding wire is difficult to bear force, so that the grounding wire is easy to be hung insecurely or hung falsely.
In summary, the conventional ground wire hanging manner is inconvenient to operate and unreliable in ground wire hanging.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an earthing device aims at solving current ground wire and articulates the inconvenient and unreliable problem of mode operation.
The embodiment of the utility model provides a realize like this, a grounding device, include:
the magnetic attraction type ground wire joint is used for being in magnetic attraction fit with the conductor end of the equipment to be grounded and forming electrical connection;
the grounding clamping device is used for being electrically connected with a grounding system; and
and the wire is used for electrically connecting the magnetic type ground wire connector and the grounding clamping device.
The embodiment of the utility model realizes fast and convenient grounding connection through a magnetic attraction mode; the quick magnetic attraction butt joint can be realized only by moving the magnetic attraction type ground wire joint to the conductor end of the equipment to be grounded, so that the operation of installing the ground wire is completed, the time for hanging the ground wire is reduced, and the labor cost is saved; especially meet operating space limited or electrical equipment installs when the box is inside, the utility model discloses the way advantage of embodiment is more obvious, and it is more convenient to operate than traditional mode, and ground connection is more stable, reliable.
Drawings
Fig. 1 is a schematic structural diagram of a grounding device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram with a partial cut-away of the grounding device provided by the embodiment of the present invention;
fig. 3 is a cross-sectional view of a magnetic attraction type ground wire connector and device conductor lead-out device provided by the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control device according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a grounding device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a grounding clamping device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present application.
The embodiment of the utility model provides a mode through magnetism is inhaled and is realized earthing device and treat articulating of earthing device, and convenient operation not only can realize more stable, reliable earth connection moreover and articulate the effect.
As an embodiment of the present invention, referring to fig. 1 to 5, this example provides an earthing device, which specifically includes:
the magnetic attraction type ground wire joint 10 is used for being in magnetic attraction fit with a conductor end of equipment to be grounded and forming electrical connection;
the grounding clamping device 40 is used for being electrically connected with a grounding system; and
and the lead 30 is used for electrically connecting the magnetic attraction type ground wire connector 10 and the grounding clamping device 40.
In this embodiment, the device to be grounded is generally an electrical device, and the hanging of the ground wire for the electrical device is a crucial link for ensuring the safety of the operator, in the specific operation, the magnetic attraction type ground wire connector 10 needs to be magnetically attracted to the conductor end of the device to be grounded, the conductor end of the general device to be grounded is a primary electrical device conductor, and preferably, the bus/busbar (made of a material that can be magnetically attracted, such as an iron material, a cupronickel transition material, and the like) or the bus/busbar leading-out point (made of a material that can be magnetically attracted, such as an iron material, a cupronickel transition material, and the like) of the device to be grounded can be selected as the conductor end of the device to be grounded.
In an embodiment of the present invention, the grounding clamping device 40 may adopt a wire clamp structure, and the specific structure is shown in fig. 6, but other detachable structures may also be adopted, and the present invention is not limited specifically; the grounding clamping device 40 is electrically connected to the magnetic-type ground wire connector 10 through the wire 30, and the magnetic-type ground wire connector 10 is electrically connected to the conductor end of the device to be grounded, so that the device to be grounded is grounded. It should be noted that, in the present embodiment and in the following embodiments, the term "electrical connection" (unless otherwise specified) may refer to either a direct electrical connection/electrical signal connection or an indirect electrical connection/electrical signal connection, and the indirect electrical connection/electrical signal connection refers to an electrical connection/electrical signal connection achieved through some intermediate components.
In an embodiment of the present invention, the magnetic attraction type ground wire connector 10 can be butted with a conductor end of a device to be grounded through the operation rod 20; in one case, the magnetic earth terminal 10 may be clamped to the conductor end of the device to be earthed by a user controlling the operating rod 20 (typically an insulating operating rod 20), i.e. the operating rod 20 is provided with a corresponding clamping structure; in another case, a first detachable structure is disposed on the magnetic ground wire connector 10, and a second detachable structure movably connected to the first detachable structure is disposed on the operating rod 20, so that the magnetic ground wire connector 10 can be moved to the conductor end of the device to be grounded through the operating rod 20.
In the embodiment, the butt joint of the grounding device and the equipment to be grounded can be quickly and conveniently realized in a magnetic attraction mode, in the traditional hanging mode, after a wire clamp or a clamp at the head part of the grounding wire is connected with a conductor end of the electrical equipment, the operating rod 20 is continuously rotated to realize the reliable clamping of the grounding wire clamp and the conductor end of the equipment to be grounded, and meanwhile, the loose hanging or the virtual hanging of the grounding wire is easily caused because the stress of a clamp or a clamp at the conductor end of the grounding wire is difficult; according to the technical scheme provided by the embodiment, quick magnetic attraction butt joint can be realized only by moving the magnetic attraction type ground wire connector 10 to the conductor end of the equipment to be grounded, so that the operation of installing the ground wire is completed, the time for hanging the ground wire is reduced, and the labor cost is saved; especially run into operating space limited or electrical equipment installs when the box is inside, because the utility model discloses the way of embodiment need not carry out too much operation to the action bars, and is more convenient than the traditional mode, connects more stably, reliably.
In an embodiment of the present invention, at most times, the material of the busbar or the bus of the device to be grounded is copper or aluminum, and cannot be attracted to the magnetic attraction type ground wire connector 10, so that in this embodiment, the grounding device further includes a device conductor leading-out device 60; the device conductor leading-out device 60 is arranged at the conductor end of the device to be grounded, and the conductor end of the device to be grounded is matched with the magnetic attraction type ground wire connector 10 in a magnetic attraction manner through the device conductor leading-out device 60. It is understood that the device conductor lead-out device 60 may be the bus bar lead-out point indicated in the above embodiments, or may be a device electrically connected to the bus bar lead-out point; the device conductor lead-out device 60 is generally made of an iron material, a tinned iron material or a copper-iron transition material, and of course, other materials capable of being magnetically attracted can be used, which are not listed here; in one case, the device conductor lead-out means 60 comprises a lead-out block (made of a material that can be magnetically attracted) and a fixing member (e.g., a bolt), which is merely an example and is not limited to a specific form thereof.
In an embodiment of the present invention, as shown in fig. 2 and 3, a magnetic ground wire connector 10 is provided, which includes:
a contact 103 for electrical connection with a conductor end of a device to be grounded, the contact 103 being electrically connected with the wire 30, the contact 103 being provided with a first recess 1031; and
and a magnetic member 101 disposed in the first recess 1031, wherein the magnetic member 101 is a permanent magnet assembly or an electromagnet assembly.
In the present embodiment, the contact 103 is a conductor; the magnetic ground wire connector 10 is electrically connected by direct contact or coupling between the contact 103 and the device to be grounded, and the magnetic member disposed in the first recess 1031 of the contact 103 is used to provide an adsorption force for stable connection. In one case, the magnetic member 101 is not simply disposed in the first recess 1031, and some limit structure may be disposed between the magnetic member 101 and the first recess 1031 to prevent the magnetic member from completely falling out or falling off the first recess 1031.
In this embodiment, when the magnetic component is an electromagnet assembly, the electromagnet assembly may be an electrification type electromagnet assembly or a power-off type electromagnet assembly, and is not particularly limited. Since the electromagnet assembly is used as the magnetic member 101, it is necessary to consider how to control the generation and decay of the magnetic force, and therefore, in this embodiment, the grounding device further includes a control device 50 for controlling the power-on/power-off state of the electromagnet assembly to control the power-on/power-off of the electromagnet assembly.
In one aspect of this embodiment, when the electromagnet assembly is a power-off electromagnet assembly, the electromagnet thereof is a power-off electromagnet, and the electromagnet core thereof can be a permanent magnet which has strong magnetic force without an external power supply, so that when the ground wire is hooked, the electromagnet can be firmly attracted with the conductor end of the device to be grounded without being powered on; when the ground wire is removed, the control device 50 is connected to the power supply of the power-off electromagnet, and the magnetic force generated by the applied current has opposite polarity to the inherent magnetic force of the built-in permanent magnet, so that the attraction force is cancelled, the attraction force of the power-off electromagnet disappears, and the conductor end of the equipment to be grounded is separated. Because the power is only needed to be supplied when the ground wire is removed, the power-off type electromagnet assembly has low energy consumption.
In another case of this embodiment, when the electromagnet assembly is an energized electromagnet assembly, the electromagnet thereof is an energized electromagnet, and the electromagnet core thereof may be made of an iron material, i.e., an iron core, and the iron core does not have a magnetic force without an external power supply, and generates a magnetic force in an energized state, and when the ground wire is hooked, the ground wire needs to be energized to be firmly attracted to a conductor end of the device to be grounded; when the ground wire is removed, the magnetic force is removed by simply cutting off the power supply of the electromagnet through the control device 50, so that the magnetic attraction type ground wire connector 10 is separated from the conductor end of the device to be grounded.
In one embodiment, an electromagnet assembly (either an energized or de-energized electromagnet) includes:
the electromagnet can be movably arranged in the first groove 1031, and the part of the electromagnet close to one side of the notch of the first groove can partially extend out of the first groove 1031 when being sucked; and
and at least one elastic component 102, wherein the elastic component 102 acts between the electromagnet and the contact body 103, and when the electromagnet is attracted outwards, the electromagnet can apply force to the contact body in the same direction as the attraction direction through the elastic component 102.
In the present embodiment, the elastic component 102 may be a spring and/or a damper, which may interact with the electromagnet and the contact body 103 by means of connection or contact, where "act" may be understood as a relationship generated by a certain interaction force.
In one embodiment, the device conductor lead-out 60 is provided with an abutment surface for mating with the contact body 103, the abutment surface being provided with a second recess 601 adapted to the size of the end of the electromagnet. When the electromagnet is in contact fit with the device conductor lead-out means 60, the attracted portion of the electromagnet extends out of the first recess 1031 and into the second recess 601 to form fit, so that the electromagnet assembly is positioned on the butt joint surface, and is prevented from shifting along the butt joint surface. Meanwhile, when the electromagnet extends out of the first recess 1031 and is matched with the second recess 601, the elastic component 102 generates acting force on the contact body 103 due to the force, so that the contact body 103 is pressed tightly on the butt joint surface, and the contact stability is ensured.
In one embodiment, to prevent rust, the magnetically attractive ground terminal 10 and the device conductor lead-out means 60 are plated with a rust preventive layer except for the contact portion therebetween (to avoid affecting the magnetic attraction force).
In one embodiment, to avoid mutual interference, an insulating member (not shown) is further sleeved between the electromagnet and the contact body 103.
In an embodiment, the elastic component 102 only partially extends out of the first recess 1031 to a certain extent when the electromagnet is sucked, and does not completely fall off, and further, in this embodiment, a first limiting structure is disposed on a notch of the first recess 1031 or an inner wall of the recess, and a second limiting structure is disposed on the electromagnet and cooperates with the first limiting structure to prevent the electromagnet from completely falling off the first recess 1031.
In one case, the first limiting structure may be a molded structure on the contact body 103 or a structure connected with the contact body 103, and the second limiting structure may be a molded structure on the electromagnet or a structure connected with the electromagnet, which is not limited in particular. The limiting mode between the first limiting structure and the second limiting structure can be set according to actual needs, for example, one of the limiting structures is a limiting slide rail, and the other limiting structure is a slide block; or both are protruding structure, and first limit structure sets up on first recess 1031 wall, and its radial dimension uses not to influence the electro-magnet and normally slides as the standard, and second limit structure sets up on the electro-magnet, and when the electro-magnet stretches out first recess 1031 certain degree, it can offset with first limit structure, has realized spacingly, avoids the electro-magnet to deviate from first recess completely.
In one embodiment, the resilient member 102 is a spring; a boss 1032 is arranged at the notch of the first groove, and the boss 1032 is a first limiting structure; the electromagnet is provided with a base 1011 on one side close to the bottom of the first groove, and the base 1011 is a second limiting structure. The convex portion 1032 may be a molded structure on the first recess 1031 of the contact 103, or a structure fixedly connected to the first recess 1031 of the contact 103; the base 1011 may be a molded structure on the electromagnet, or may be a structure fixedly connected to the electromagnet, and is not limited specifically.
In one case, the spring is wound around and/or alongside the electromagnet and has one end connected to or acting on the base 1011 and the other end connected to or acting on the boss 1032; in this case, the spring may be fixedly connected to the contact body 103 and the electromagnet, and since the spring is mainly pressed by the electromagnet to act on the contact body 103 in a compressed manner during operation, the spring may be connected to the contact body 103 and the electromagnet in a contact manner.
In another case, one end of the spring is connected to the electromagnet and the other end is connected to or acts on the boss 1032; in this case, too, the spring acts on the contact body 103 mainly in compressed form.
In still another case, one end of the spring is connected to the base 1011 or the electromagnet, and the other end is connected to the bottom of the first recess 1031; in this case, the two ends of the spring are fixedly connected to the contact body 103 and the electromagnet, and the spring exerts a tensile action on the contact body 103 in a manner that the spring is stretched by the electromagnet during operation.
In one embodiment, as shown in fig. 4, regarding the control device 50 in the foregoing embodiment, it may include:
a power supply module 501 electrically connected with the electromagnet assembly; and a switch module 502 for controlling the power supply circuit of the electromagnet assembly to be switched on and off. The power supply module 501 may be a battery or a power adapter, and the voltage level thereof may preferably be a safe voltage such as 12V, 24V, and the like, and may also adopt other low or high voltages, and in one case, the power supply module further includes a circuit board for managing the battery and the power adapter; the switch module 502 and the power supply module 501 are of an integrated structure or a split structure, and are not particularly limited.
In one embodiment, the grounding device further comprises a lever 20, the lever 20 being generally an insulated lever; the operating rod 20 includes a handheld end and a first connecting end, the magnetic type ground wire connector 10 is provided with a second connecting end, and the first connecting end and the second connecting end can be movably connected in a detachable manner. As an example, the connection structure between the first connection end and the second connection end may be a universal joint, or a flexible snap (similar to the connection structure between a bayonet incandescent lamp and a lamp holder).
In one embodiment, the first connection end may also be a clamping structure, which can directly clamp the magnetically-attracted ground connector 10 without providing an additional structure on the magnetically-attracted ground connector 10 to cooperate with it.
In one embodiment, the power supply module 501 of the control device 50 may be disposed on the magnetic ground connector 10 or the operating rod 20, or may be an external module (a separate portable device), and is not limited in particular; the switch module 502 is disposed on the magnetic ground wire connector 10 or the operating rod 20, or is an external module (independent portable device), and is not limited specifically; the power supply module 501 and the magnetic type ground wire connector 10 may be in a plug-in fit (the power supply module 501 is an external module) or in a continuous connection fit, and is not particularly limited.
In one embodiment, the switch module 502 is connected to the power supply module 501 through a wire (e.g., a connection wire 503 in the figure) or wirelessly. As an example, the switch module 502 is disposed on the operation rod 20, the power supply module 501 is disposed on the magnetic attraction type ground wire connector 10, and each of the switch module 502 and the magnetic attraction type ground wire connector 10 is provided with a wireless communication module (not shown), such as bluetooth, infrared, and the like, and the switch module 502 on the operation rod 20 controls the power supply state of the power supply module 501 on the magnetic attraction type ground wire connector 10, that is, controls the power on/off state of the electromagnet through the wireless communication module.
In one embodiment, when the magnetic component is a permanent magnet assembly, the magnetic component can be directly contacted and attracted with the conductor end of the device to be grounded; specifically, the permanent magnet assembly includes, in addition to the permanent magnet, an elastic structure (similar to the elastic component 102 described above), which may be a spring or a damper, and one end of the elastic structure directly or indirectly acts on the permanent magnet, and the other end of the elastic structure directly or indirectly acts on the first recess 1031, and its main purpose is to enable the contact body 103 to abut against the conductor end of the device to be grounded by compressing the elastic structure when the permanent magnet is attracted to the conductor end of the device to be grounded, or to enable the contact body 103 to be pulled and abut against the conductor of the device to be grounded by stretching the elastic structure (see the connection manner between the elastic component 102 and the contact body 103 and the electromagnet).
In the above embodiment of the utility model, the quick magnetic attraction butt joint can be realized only by moving the magnetic attraction type ground wire joint to the conductor end of the equipment to be grounded, thereby completing the operation of installing the ground wire, reducing the time for hanging the wire and saving the labor cost; especially meet operating space limited or electrical equipment installs when the box is inside, the utility model discloses the way advantage of embodiment is more obvious, and it is more convenient to operate than traditional mode, connects more stably, reliably.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An earthing device, characterized by comprising:
the magnetic attraction type ground wire joint is used for being in magnetic attraction fit with the conductor end of the equipment to be grounded and forming electrical connection;
the grounding clamping device is used for being electrically connected with a grounding system; and
and the wire is used for electrically connecting the magnetic type ground wire connector and the grounding clamping device.
2. The grounding device of claim 1, further comprising equipment conductor lead-out means;
the device conductor leading-out device is arranged at the conductor end of the device to be grounded, and the conductor end of the device to be grounded is matched with the magnetic type ground wire connector in a magnetic attraction manner through the device conductor leading-out device.
3. The grounding device of claim 1, wherein the magnetically attractable ground connector comprises:
the contact body is electrically connected with the conductor end of the equipment to be grounded and is electrically connected with the lead, and the contact body is provided with a first groove; and
and the magnetic force component is arranged in the first groove and is a permanent magnet component or an electromagnet component.
4. The grounding device of claim 3 wherein the magnetic member is an electromagnet assembly, the electromagnet assembly being either an energized type electromagnet assembly or a de-energized type electromagnet assembly.
5. The grounding device of claim 4, wherein said grounding device further comprises:
the control device is used for controlling the power-on and power-off state of the electromagnet assembly so as to control the magnetic force of the electromagnet assembly; the control device includes:
the power supply module is electrically connected with the electromagnet assembly and is a battery or a power adapter; and
and the switch module is used for controlling the on-off of a power supply loop of the electromagnet assembly.
6. The grounding device of claim 4, wherein said electromagnet assembly comprises:
the electromagnet can be movably arranged in the first groove, and the part of the electromagnet, which is close to one side of the notch of the first groove, can partially extend out of the first groove when being sucked; and
the electromagnet can apply force to the contact body in the same direction as the attraction direction through the elastic component when the electromagnet is attracted outwards.
7. The grounding device as claimed in claim 6, wherein a first limiting structure is provided on the notch of the first groove or on the inner wall of the groove, and a second limiting structure is provided on the electromagnet to cooperate with the first limiting structure to prevent the electromagnet from completely escaping from the first groove.
8. The grounding device of claim 7, wherein said resilient member is a spring; a protruding part is arranged at the notch of the first groove and is the first limiting structure; a base is arranged on one side, close to the bottom of the first groove, of the electromagnet, and the base is of the second limiting structure;
the spring is wound on the electromagnet and/or arranged side by side with the electromagnet, one end of the spring is connected with or acts on the base, and the other end of the spring is connected with or acts on the protruding part; or
One end of the spring is connected to the electromagnet, and the other end of the spring is connected to or acts on the protruding part; or
One end of the spring is connected to the base or the electromagnet, and the other end of the spring is connected to the bottom of the first groove.
9. The grounding device of claim 6, further comprising equipment conductor lead-outs;
the device conductor leading-out device is arranged at a conductor end of the device to be grounded, and the conductor end of the device to be grounded is in magnetic attraction fit with the magnetic attraction type ground wire joint through the device conductor leading-out device;
the equipment conductor leading-out device is provided with a butt joint surface matched with the contact body, and a second groove matched with the end part of the electromagnet is formed in the butt joint surface.
10. The grounding device of claim 1, wherein said grounding device further comprises an operating lever;
the operating rod comprises a handheld end and a first connecting end, a second connecting end is arranged on the magnetic type ground wire joint, and the first connecting end can be movably connected with the second connecting end in a detachable mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248454.1U CN211126137U (en) | 2019-12-15 | 2019-12-15 | Grounding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922248454.1U CN211126137U (en) | 2019-12-15 | 2019-12-15 | Grounding device |
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| CN211126137U true CN211126137U (en) | 2020-07-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009232A (en) * | 2021-03-24 | 2021-06-22 | 中化二建集团有限公司 | Insulation resistance testing method for electrical equipment |
| WO2024016554A1 (en) * | 2022-07-19 | 2024-01-25 | 中车株洲电力机车有限公司 | Rubber-tired sky train and active safety grounding device and method therefor |
-
2019
- 2019-12-15 CN CN201922248454.1U patent/CN211126137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009232A (en) * | 2021-03-24 | 2021-06-22 | 中化二建集团有限公司 | Insulation resistance testing method for electrical equipment |
| WO2024016554A1 (en) * | 2022-07-19 | 2024-01-25 | 中车株洲电力机车有限公司 | Rubber-tired sky train and active safety grounding device and method therefor |
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