An insulating sleeve for high-voltage switchgear that facilitates voltage detection and grounding.

Abstract

This invention discloses an insulating sleeve for a high-voltage switchgear that facilitates voltage testing and grounding. It includes a copper busbar unit, comprising a copper busbar disposed within the high-voltage switchgear, an insulating sleeve one disposed on the copper busbar, and an insulating sleeve two disposed on the copper busbar. The sleeve unit includes a clamping component one, a clamping component two movably disposed on the clamping component one, and a clamping component three movably disposed on the clamping component two and detachably mounted to the clamping component one. This insulating sleeve for a high-voltage switchgear that facilitates voltage testing and grounding allows the movable clamping component three to easily install the conductive end of the grounding wire onto the copper busbar. Under the limiting action of the clamping components one and two, the installation of the conductive end of the grounding wire is simple and stable, and can meet the requirements of multiple tests during long-term operation. It also allows the voltage tester to contact the copper busbar for use without damaging the copper busbar unit. Finally, it effectively prevents short circuits caused by small animals entering the high-voltage switchgear.

Description

Technical Field

[0001] This invention relates to the technical field of the power transformation and distribution industry, and in particular to an insulating sleeve for high-voltage switchgear that facilitates voltage detection and grounding. Background Technology

[0002] Currently, to prevent short circuits caused by small animals, 10kV high-voltage switchgear uses insulating sleeves to completely wrap the copper busbars. While this prevents short circuits caused by small animals entering the switchgear, it also means that there is no place to hang the grounding wire during power outages. In the absence of effective grounding, the insulating rubber must be cut open manually to hang the grounding wire before work can proceed. After the work is completed, the grounding wire must be removed, and the insulating wrapping must be repaired. This results in a waste of material and human resources. At the same time, cutting and repairing the rubber also carries the risk of electric shock and death to personnel if power is suddenly restored without grounding protection. Summary of the Invention

[0003] In view of the problem that the existing high-voltage switchgear insulation sleeves, which are convenient for voltage testing and grounding, are not convenient for suspending the grounding wire, this invention is proposed.

[0004] Therefore, the present invention provides an insulating wrapping sleeve for high-voltage switchgear that facilitates voltage testing and grounding, the purpose of which is to solve the technical problem of inconvenient grounding wire suspension.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a copper busbar unit and a sheath unit.

[0006] The copper busbar unit includes a copper busbar installed inside the high-voltage switchgear, an insulating sleeve I installed on the copper busbar, and an insulating sleeve II installed on the copper busbar.

[0007] The package unit includes a first clamping component, a second clamping component movably disposed on the first clamping component, and a third clamping component movably disposed on the second clamping component and detachably installed from the first clamping component.

[0008] As a preferred embodiment of the high-voltage switchgear insulating sleeve for convenient voltage testing and grounding according to the present invention, wherein: a gap is left between the first insulating sleeve and the second insulating sleeve for voltage testing.

[0009] As a preferred embodiment of the high-voltage switchgear insulation sleeve for easy voltage detection and grounding described in this invention, the first clamping component includes a first connecting shell, an inclined shell disposed at the upper and lower ends of the first connecting shell, a first clamping shell disposed on the inclined shell, a locking bolt disposed on the first clamping shell, and a protrusion disposed on the first connecting shell.

[0010] As a preferred embodiment of the high-voltage switchgear insulation sleeve for easy voltage detection and grounding described in this invention, wherein: the projection of the connecting shell along the X direction is L-shaped, and the bending part of the connecting shell is provided with a rounded corner.

[0011] As a preferred embodiment of the high-voltage switchgear insulation sleeve for easy voltage detection and grounding described in this invention, the projection length of the connecting shell along the Y direction is 1.5cm.

[0012] As a preferred embodiment of the high-voltage switchgear insulating sleeve for easy voltage detection and grounding described in this invention, wherein: the connecting shell is provided with an opening for connecting to electricity.

[0013] As a preferred embodiment of the high-voltage switchgear insulation sleeve for easy voltage detection and grounding described in this invention, wherein: the projection shape of the opening along the Z direction is rectangular, and the width direction of the rectangle is provided with an arc.

[0014] As a preferred embodiment of the high-voltage switchgear insulation sleeve for easy voltage detection and grounding described in this invention, the second clamping component includes a second connecting shell movably disposed on the first connecting shell, a second inclined shell disposed at both ends of the second connecting shell, a second clamping shell disposed on the second inclined shell, and a fixing lug disposed on the second clamping shell.

[0015] As a preferred embodiment of the high-voltage switchgear insulation sleeve for easy voltage detection and grounding described in this invention, the clamping component three includes a sealing shell movably disposed on the connecting shell two, sealing covers disposed at the upper and lower ends of the sealing shell, a limiting shell disposed on the sealing shell and cooperating with the protrusion, and a fixing frame disposed on the limiting shell.

[0016] As a preferred embodiment of the high-voltage switchgear insulating sleeve for easy voltage detection and grounding described in this invention, the fixing frame is made of insulating rubber.

[0017] The beneficial effects of this invention are as follows: A copper busbar unit and a sheath unit are provided, locking clamping components one and two together, pressing them between insulating sheath one and insulating sheath two, thus covering the exposed portion of the copper busbar. Simultaneously, the movable arrangement of clamping component three facilitates the installation of the conductive end of the grounding wire onto the copper busbar. Under the limiting action of clamping components one and two, the installation of the conductive end of the grounding wire is simple and stable. The grounding wire can be easily suspended without damaging the copper busbar unit, improving operational safety and meeting the requirements for multiple inspections during long-term operation. Furthermore, it allows the voltage tester to contact the copper busbar for use without damaging the copper busbar unit. Finally, the installation and protection of the sheath unit effectively prevents small animals from entering the high-voltage cabinet and causing short circuits in the copper busbar. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0020] Figure 2 This is a schematic diagram of the installation structure of Embodiment 1 of the present invention. Figure 1 .

[0021] Figure 3 This is a schematic diagram of the installation structure of Embodiment 1 of the present invention. Figure 2 .

[0022] Figure 4 This is a schematic diagram of the copper busbar unit in Embodiment 1 of the present invention.

[0023] Figure 5 This is a schematic diagram of the overall structure of the wrapping unit in Embodiment 2 of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the wrapping unit in Embodiment 2 of the present invention.

[0025] Figure 7 This is a front view of the wrapping unit in Embodiment 2 of the present invention.

[0026] Figure 8 This is a schematic diagram of the usage structure of Embodiment 3 of the present invention. Figure 1 .

[0027] Figure 9 This is a schematic diagram of the usage structure of Embodiment 3 of the present invention. Figure 2 .

[0028] Figure 10 This is a schematic diagram of the usage structure of Embodiment 3 of the present invention. Figure 3 . Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1, referring to Figure 1-4 This invention provides a first embodiment of an insulating cover for a high-voltage switchgear, facilitating voltage testing and grounding. The device includes a copper busbar unit 100 and a cover unit 200. By covering the exposed portion of the copper busbar unit 100 with the cover unit 200, the cover is not tightly attached to the copper busbar 101, facilitating contact voltage testing with a voltage tester. It also facilitates the installation of the conductive end of the grounding wire onto the copper busbar 101, providing stable suspension grounding of the grounding wire without damaging the copper busbar unit 100. Furthermore, it effectively prevents short circuits in the copper busbar 101 caused by small animals entering the high-voltage switchgear.

[0034] The copper busbar unit 100 includes a copper busbar 101 installed inside the high-voltage cabinet, an insulating sleeve 102 installed on the copper busbar 101, and an insulating sleeve 103 installed on the copper busbar 101. The insulating sleeve 102 and the insulating sleeve 103 are arranged side by side, and the copper busbar 101 is insulated and protected by the insulating sleeve 102 and the insulating sleeve 103 to prevent small animals from entering the high-voltage cabinet and causing a short circuit in the copper busbar 101.

[0035] The sheath unit 200 includes a first clamping component 201, a second clamping component 202 movably mounted on the first clamping component 201, and a third clamping component 203 movably mounted on the second clamping component 202 and detachably mounted to the first clamping component 201. The first clamping component 201 and the second clamping component 202 work together to clamp the insulating sheath 102 and the insulating sheath 203 at their closest points. The sheath unit 200 connects the insulating sheath 102 and the insulating sheath 203. The sheath unit 200 is made entirely of insulating material. The second clamping component 202 is detachably mounted on the first clamping component 201, enabling the sheath unit 200 to be stably mounted on the copper busbar unit 100. The installation of the third clamping component 203 facilitates multiple inspections required for long-term use.

[0036] During use, clamping components 1 201 and 2 202 are locked together, pressing them between insulating sleeve 1 102 and insulating sleeve 2 103 to cover the exposed part of the copper busbar 101. Simultaneously, the movable setting of clamping component 3 203 facilitates the installation of the conductive end of the grounding wire onto the copper busbar 101. Under the limiting action of clamping components 1 201 and 2 202, the installation of the conductive end of the grounding wire is simple and stable. This allows for easy suspension of the grounding wire without damaging the copper busbar unit 100, improving operational safety and meeting the requirements for multiple inspections during long-term operation. It also allows the voltage tester to contact the copper busbar 101 for use without damaging the copper busbar unit 100. Finally, the installation of the sleeve unit 200 effectively prevents small animals from entering the high-voltage cabinet and causing a short circuit in the copper busbar 101.

[0037] Example 2, refer to Figure 1-10 This is the second embodiment of the present invention, which differs from the first embodiment in that: the conductive end clamp of the grounding wire can be engaged between the clamping component one 201 and the copper busbar 101, and can also be engaged between the clamping component two 202 and the copper busbar 101. The clamping components one 201 and two 202 provide stable limiting for the clamp, making the clamping installation of the clamp more stable, that is, the suspension of the grounding wire is more convenient and stable; the connecting shell one 201a does not directly press against the copper busbar 101, and the 1.5cm distance between the connecting shell one 201a and the copper busbar 101 can also dissipate heat from the copper busbar 101. This design avoids pressing the copper busbar 101 too tightly, which would reduce its heat dissipation efficiency. It also allows the metal testing part of the voltage tester to be inserted into the connecting housing 201a through the opening 201f to make contact with the copper busbar 101 for voltage testing. The size of the opening 201f also effectively prevents small animals from coming into contact with the copper busbar 101. At the same time, even if the copper busbar 101 is installed in a corner of the high-voltage cabinet or is blocked by other components, the voltage tester can be tilted so that the metal testing part can make contact with the copper busbar 101 for voltage testing. The minimum tilt angle that the voltage tester can achieve is 30 degrees, which can basically adapt to all installation situations of the copper busbar 101.

[0038] Compared to Embodiment 1, a further step is to leave a gap 104 between the first insulating sleeve 102 and the second insulating sleeve 103 for voltage testing. The voltage tester and the conductive end of the grounding wire are both mounted on the copper busbar 101 at the gap 104, enabling direct voltage testing and grounding. During grounding, simply open the clamping component 203 to engage the conductive end of the grounding wire onto the copper busbar 101 at the gap 104. Because the copper busbar 101 at the gap 104 is protected by the clamping components 201 and 202, the probability of accidental contact with the copper busbar 101 by personnel is effectively reduced, improving operational safety.

[0039] Preferably, the clamping assembly 201 includes a connecting shell 201a, inclined shells 201b disposed at the upper and lower ends of the connecting shell 201a, a clamping shell 201c disposed on the inclined shell 201b, a locking bolt 201d disposed on the clamping shell 201c, and a protrusion 201e disposed on the connecting shell 201a. Two clamping shells 201c are provided, each connected to a distant end of one of the two inclined shells 201b. Both clamping shells 201c are parallel to the connecting shell 201a. Each clamping shell 201c is clamped onto the close ends of the insulating sleeve 102 and the insulating sleeve 203. Each clamping shell 201c has rounded corners at both ends to clamp the insulating sleeve 102 and the insulating sleeve 203.

[0040] Furthermore, the projection of the connecting shell 201a along the X direction is L-shaped, and the bend of the connecting shell 201a is rounded. The inclined shell 201b and the connecting shell 201a are fully fitted together; the connecting shell 201a is set to L-shape so that it does not directly press against the copper busbar 101, and there is an installation gap between the connecting shell 201a and the copper busbar 101, which also facilitates heat dissipation of the copper busbar 101.

[0041] Furthermore, the projected length of the connecting shell 201a along the Y direction is 1.5cm. The thickness of the connecting shell 201a is negligible, meaning the vertical distance between the inner wall of the connecting shell 201a and the copper busbar 101 is 1.5cm. Since the voltage tester needs to pass through the connecting shell 201a and contact the copper busbar 101 during testing, and the existing voltage tester has a 4cm long metal testing part, a vertical distance of 1.5cm is sufficient for the metal testing part of the voltage tester to contact the copper busbar 101. Simultaneously, the existing grounding wire's conductive end is a clamp structure, such as... Figure 9 and Figure 10As shown, the thickness of the clamp is slightly less than 1.5cm. Therefore, the conductive end clamp of the grounding wire can be inserted between the clamping component 1 201 and the copper busbar 101, and can also be inserted between the clamping component 202 and the copper busbar 101. The clamping components 1 201 and 202 provide stable limiting for the clamp, making the clamping installation of the clamp more stable, that is, the suspension of the grounding wire is more convenient and stable. Finally, the connecting shell 1 201a will not be directly pressed against the copper busbar 101. The 1.5cm distance between the connecting shell 1 201a and the copper busbar 101 can also dissipate heat from the copper busbar 101, avoiding poor heat dissipation efficiency of the copper busbar 101 due to pressing against it.

[0042] In particular, the connecting shell 201a has an opening 201f for connecting to electricity. This opening 201f allows the voltage tester to make contact with the copper busbar 101 without damaging the copper busbar unit 100. Simultaneously, the opening 201f also facilitates the passage of the conductive end of the grounding wire through the connecting shell 201a, without obstructing its installation. This ensures the grounding wire's installation is simultaneously limited by the connecting shell 201a, the clamping component 202, and the opening 201f, resulting in more stable installation and easier suspension of the grounding wire. Furthermore, direct voltage testing through the opening 201f prevents small animals from directly contacting the copper busbar 101, avoiding short circuits caused by animals entering the high-voltage cabinet.

[0043] Preferably, the projection shape of the opening 201f along the Z direction is a rectangle 201g, and the width direction of the rectangle 201g is provided with an arc 201h. The length of the rectangle 201g is 2cm and the width is 1.5cm. The arc 201h has a diameter of 1.5cm, which facilitates the insertion of the metal testing part of the voltage tester into the connecting shell 201a through the opening 201f to make contact with the copper busbar 101 for voltage testing. This size of the opening 201f can also effectively prevent small animals from contacting the copper busbar 101. At the same time, even if the copper busbar 101 is installed in the corner of the high-voltage cabinet or is blocked by other components, the voltage tester can be tilted so that the metal testing part can make contact with the copper busbar 101 for voltage testing. At this time, the minimum tilting angle that the voltage tester can achieve is 30 degrees, which can basically adapt to all installation situations of the copper busbar 101.

[0044] The remaining structure is the same as that in Example 1.

[0045] Example 3, referring to Figure 1-10This is the third embodiment of the present invention. This embodiment differs from the second embodiment in that: the conductive end of the grounding wire is inserted into the fixing frame 203d. By rotating the conductive end of the grounding wire, the limiting shell 203c can be rotated to a position that engages with the protrusion 201e. The through hole 203f engages with the protrusion 201e to lock in place, thus limiting the entire pressing assembly 203. The pressing assembly 201, pressing assembly 202, and pressing assembly 203 together form the wrapping unit 200, which shields and protects the exposed portion of the copper busbar 101, preventing short circuits caused by small animals entering the high-voltage cabinet. The entire operation is achieved through contact between insulating materials, reducing the risk of accidental electric shock to workers and improving operational safety.

[0046] Compared to Embodiment 2, the second clamping component 202 further includes a second connecting shell 202a movably disposed on the first connecting shell 201a, a second inclined shell 202b disposed at both ends of the second connecting shell 202a, a second clamping shell 202c disposed on the second inclined shell 202b, and a fixing ear 202d disposed on the second clamping shell 202c. Connecting shell 202a is rotatably mounted on connecting shell 1 201a via hinge 1; connecting shell 202a has the same structure as connecting shell 1 201a, tilting shell 202b has the same structure as tilting shell 1 201b, clamping shell 202c has the same structure as clamping shell 1 201c, fixing ear 202d cooperates with locking bolt 201d, which can stably limit the clamping assembly 1 201 and clamping assembly 202, thereby making clamping assembly 1 201 and clamping assembly 202 stably pressed onto insulating sleeve 1 102 and insulating sleeve 2 103, forming the overall insulation of copper busbar 101.

[0047] Preferably, the clamping component 203 includes a sealing shell 203a movably disposed on the connecting shell 202a, a sealing cover 203b disposed at the upper and lower ends of the sealing shell 203a, a limiting shell 203c disposed on the sealing shell 203a and cooperating with the protrusion 201e, and a fixing frame 203d disposed on the limiting shell 203c. The sealing cover 203b is provided with a clearance opening 203e for accommodating the first clamping shell 201c and the second clamping shell 202c. The limiting shell 203c is provided with a through hole 203f for clamping the protrusion 201e. When the conductive end of the grounding wire is inserted into the fixing frame 203d, the limiting shell 203c can be rotated to the position that mates with the protrusion 201e by rotating the conductive end of the grounding wire. The through hole 203f and the protrusion 201e are clamped together, which limits the entire clamping assembly 203. The first clamping assembly 201, the second clamping assembly 202 and the third clamping assembly 203 together form the enclosing sleeve unit 200, which shields and protects the exposed part of the copper busbar 101, preventing small animals from entering the high voltage cabinet and causing a short circuit in the copper busbar 101.

[0048] Furthermore, the fixing frame 203d is made of insulating rubber. By using insulating rubber, the fixing frame 203d will not be in an open state when not in use, which can effectively prevent small animals from scratching the fixing frame 203d during crawling and reduce the possibility of the limiting shell 203c becoming loose.

[0049] The remaining structure is the same as that in Example 2.

[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-voltage switchgear insulating sleeve for easy voltage detection and grounding, characterized in that: include, The copper busbar unit (100) includes a copper busbar (101) disposed in a high voltage cabinet, an insulating sleeve one (102) disposed on the copper busbar (101), and an insulating sleeve two (103) disposed on the copper busbar (101); A gap (104) is left between the first insulating sleeve (102) and the second insulating sleeve (103) for voltage testing; The package unit (200) includes a first clamping component (201), a second clamping component (202) movably disposed on the first clamping component (201), and a third clamping component (203) movably disposed on the second clamping component (202) and detachably mounted to the first clamping component (201); and, The clamping assembly (201) includes a connecting shell (201a), an inclined shell (201b) disposed at the upper and lower ends of the connecting shell (201a), a clamping shell (201c) disposed on the inclined shell (201b), a locking bolt (201d) disposed on the clamping shell (201c), and a protrusion (201e) disposed on the connecting shell (201a). The projection of the connecting shell (201a) along the X direction is L-shaped, and the bending part of the connecting shell (201a) is provided with a rounded corner.

2. The high-voltage switchgear insulating sleeve for easy voltage detection and grounding as described in claim 1, characterized in that: The projected length of the connecting shell (201a) along the Y direction is 1.5cm.

3. The high-voltage switchgear insulating sleeve for easy voltage detection and grounding as described in claim 2, characterized in that: The connecting housing (201a) is provided with an opening (201f) for connecting to electricity.

4. The high-voltage switchgear insulating sleeve for easy voltage detection and grounding as described in claim 3, characterized in that: The projection shape of the opening (201f) along the Z direction is a rectangle (201g), and the width direction of the rectangle (201g) is provided with an arc (201h).

5. The high-voltage switchgear insulating sleeve for easy voltage detection and grounding as described in claim 4, characterized in that: The second clamping assembly (202) includes a second connecting shell (202a) movably disposed on the first connecting shell (201a), a second inclined shell (202b) disposed at both ends of the second connecting shell (202a), a second clamping shell (202c) disposed on the second inclined shell (202b), and a fixing ear (202d) disposed on the second clamping shell (202c).

6. The high-voltage switchgear insulating sleeve for easy voltage detection and grounding as described in claim 5, characterized in that: The clamping assembly three (203) includes a sealing shell (203a) movably disposed on the connecting shell two (202a), a sealing cap (203b) disposed at the upper and lower ends of the sealing shell (203a), a limiting shell (203c) disposed on the sealing shell (203a) and cooperating with the protrusion (201e), and a fixing frame (203d) disposed on the limiting shell (203c).

7. The high-voltage switchgear insulating sleeve for easy voltage detection and grounding as described in claim 6, characterized in that: The fixing frame (203d) is made of insulating rubber.

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