Large-capacity isolation handcart conductive loop structure and isolation handcart

Abstract

The utility model discloses a large-capacity isolation handcart conductive loop structure and an isolation handcart, the large-capacity isolation handcart conductive loop structure comprises an upper fixing plate and a lower fixing plate, the upper fixing plate and the lower fixing plate are arranged in an insulating cylinder, and the upper fixing plate and the lower fixing plate are used for fixing a conducting bar together. Meanwhile, the conducting bar is directly fixed in the insulating cylinder through the upper fixing plate and the lower fixing plate, the number of conducting pieces can be reduced, the upper fixing plate and the lower fixing plate are in close contact with the conducting bar, then contact resistance is reduced, the conducting efficiency is improved, the assembling time is shortened, and the conducting reliability is improved; the integrated assembly mode greatly shortens the installation period, improves the production efficiency, enhances the reliability of electrical connection between the conducting bar and the upper fixing plate and between the conducting bar and the lower fixing plate, reduces the fault risk, and brings higher economic benefits and operation stability for users.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage electrical appliances, and in particular relates to a conductive circuit structure of a large-capacity isolation trolley and the isolation trolley. Background Art

[0002] As an indispensable high-voltage switchgear component in the power system, the isolation trolley is designed to safely and reliably isolate or connect circuits to ensure smooth power transmission and distribution. Large-capacity isolation trolleys designed under traditional concepts have overly complex conductive circuit structures, numerous connection points, and are inconvenient to install. This complex multi-component structure also brings a series of challenges. First, the numerous connection points not only increase the complexity and difficulty of assembly, but may also become potential failure points during long-term use, affecting the overall reliability of the equipment. Second, the installation and maintenance process is relatively cumbersome, requiring high professional skills from technicians, which increases operation and maintenance costs. Third, since all conductive parts are made of T2 copper, although excellent conductivity is ensured, it also makes the manufacturing cost of the entire trolley high.

[0003] For example, the Chinese patent with publication number CN202997393U and patent name "An isolated pole structure with a heat sink" uses an upper outlet seat and a lower outlet seat to fix the conductive bar, and the conductive bar is located inside the insulating tube. However, the upper outlet seat and the lower outlet seat both have a conductive function. The large number of conductive parts in this structure directly leads to the complexity of the isolated pole structure, making the installation and maintenance work more cumbersome and time-consuming, and will increase material costs, increase potential failure points, and may also cause the contact resistance in the conductive circuit to increase, thereby affecting the conductive performance.

[0004] Therefore, in the pursuit of more efficient and economical high-voltage switchgear design, exploring how to simplify the conductive circuit structure of the isolation trolley, reduce unnecessary connection points, and seek more cost-effective conductive material alternatives has become a hot research direction in the industry. Utility Model Content

[0005] The purpose of the utility model is to overcome the above problems and provide a large-capacity isolation trolley conductive circuit structure and an isolation trolley, which reduces assembly time and the number of conductive parts, improves the reliability of conduction, and reduces costs.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a conductive circuit structure of a large-capacity isolation trolley, comprising an upper fixing plate and a lower fixing plate, both of which are located inside an insulating cylinder and jointly fix a conductive bar.

[0008] A further improvement of the present utility model lies in that the upper end of the conductive bar is connected to the upper contact arm, and the lower end of the conductive bar is connected to the lower contact arm.

[0009] A further improvement of the present utility model lies in that both the upper contact arm and the lower contact arm are contact arms made of T2 copper, and the conductive bar is a conductive bar made of T2 copper.

[0010] A further improvement of the present utility model lies in that the upper contact arm and the lower contact arm are fixedly connected to the conductive bar by bolts.

[0011] A further improvement of the present utility model lies in that heat sinks are provided on the conductive bar.

[0012] A further improvement of the present utility model lies in that the heat sinks are arranged at intervals as vertically arranged rectangular strips, and two round holes are symmetrically arranged in parallel above and below the heat sinks. Threaded holes are provided at corresponding positions on the conductive bar, and the heat sinks are fixedly connected to the conductive bar by bolts.

[0013] A further improvement of the present utility model lies in that the heat sinks are aluminum alloy heat sinks.

[0014] A further improvement of the present utility model lies in that both the upper fixing plate and the lower fixing plate are made of iron fixing plates.

[0015] A further improvement of the present utility model lies in that threaded holes are provided on both the upper fixing plate and the lower fixing plate, and threaded holes are symmetrically provided on the conductive bar. The upper fixing plate and the lower fixing plate fix the conductive bar inside the insulating cylinder by bolts passing through the threaded holes.

[0016] The present utility model also provides an isolating trolley, including the large-capacity isolating trolley conductive loop structure described in any one of the above.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] By arranging the upper fixing plate and the lower fixing plate inside the insulating cylinder and using the upper fixing plate and the lower fixing plate to jointly fix the conductive bar, the present utility model makes the installation of the conductive bar more stable. At the same time, the conductive bar is directly fixed inside the insulating cylinder through the upper fixing plate and the lower fixing plate, which can reduce the number of conductive parts, enable the upper fixing plate and the lower fixing plate to be in close contact with the conductive bar, thereby reducing the contact resistance, improving the conductive efficiency, not only reducing the assembly time but also improving the conductive reliability and reducing the cost.

[0019] Furthermore, the upper contact arm and the lower contact arm are fixed to the conductive bar by bolts. The bolts not only provide the necessary mechanical strength to fix the contact arms and the conductive bar but also ensure good electrical contact.

[0020] Furthermore, the heat sinks are arranged at intervals as vertically arranged rectangular strips, and two round holes are symmetrically arranged in parallel above and below the heat sinks. Threaded holes are provided at corresponding positions on the conductive bars, and the heat sinks and the conductive bars are fixedly connected by bolts. The vertically arranged rectangular strip heat sinks can provide a large heat dissipation area. At the same time, the fixed connection of the heat sinks and the conductive bars by bolts not only realizes electrical connection but also enhances the mechanical connection between the heat sinks and the conductive bars, making the heat sinks more stable when subjected to external forces and not easily deformed or detached.

[0021] Furthermore, both the upper fixing plate and the lower fixing plate are made of iron fixing plates, reducing the number of conductive parts in the conductive circuit structure of the isolating trolley and reducing costs.

[0022] Furthermore, the upper fixing plate and the lower fixing plate fix the conductive bar inside the insulating cylinder by bolts passing through the threaded holes. By tightening the bolts, sufficient pre-tightening force can be generated to form a tight contact and a firm connection between the upper fixing plate, the lower fixing plate and the conductive bar. In addition, the upper fixing plate and the lower fixing plate are connected together by bolts and form an integral structure with the insulating cylinder, not only improving the fixing stability of the conductive bar but also enhancing the strength and rigidity of the entire device, and being able to better resist deformation and damage when subjected to external forces. Description of the Drawings

[0023] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present utility model in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present utility model, rather than specifically defining the shapes and proportional dimensions of the components of the present utility model.

[0024] Figure 1 Internal schematic diagram of the conductive circuit structure of the large-capacity isolating trolley of the present utility model;

[0025] Figure 2 Detail schematic diagram of the heat sink of the conductive circuit structure of the large-capacity isolating trolley of the present utility model.

[0026] Wherein: 1, insulating cylinder; 2, upper contact arm; 3, lower contact arm; 4, upper fixing plate; 5, heat sink; 6, conductive bar; 7, lower fixing plate. Detailed Description of the Invention

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] The present invention is described in further detail below with reference to the accompanying drawings:

[0034] Example 1

[0035] like Figure 1 As shown, the embodiment of the present invention provides a conductive circuit structure of a large-capacity isolation trolley, comprising an insulating cylinder 1, an upper contact arm 2, a lower contact arm 3, an upper fixing plate 4, a heat sink 5, a conductive bar 5 and a lower fixing plate 7;

[0036] In this embodiment, the upper fixing plate 4 and the lower fixing plate 7 are both located inside the insulating cylinder 1. Threaded holes are provided on both the upper fixing plate 4 and the lower fixing plate 7, and threaded holes are symmetrically arranged on the conductive busbar 6. The upper fixing plate 4 and the lower fixing plate 7 fix the conductive busbar 6 inside the insulating cylinder 1 by bolts passing through the threaded holes. By tightening the bolts, sufficient pre-tightening force can be generated to form a tight contact and a firm connection among the upper fixing plate 4, the lower fixing plate 7, and the conductive busbar 6. In addition, the upper fixing plate 4 and the lower fixing plate 7 are connected together by bolts and form an integral structure with the insulating cylinder 1, which not only improves the fixing stability of the conductive busbar 6 but also enhances the strength and rigidity of the entire device, enabling it to better resist deformation and damage when subjected to external forces.

[0037] In this embodiment, the upper fixing plate 4 and the lower fixing plate 7 jointly fix the conductive busbar 6, which can reduce the number of conductive components in the conductive circuit of the isolating trolley and reduce costs.

[0038] In this embodiment, heat sinks 5 are provided on the conductive busbar 6. The upper end of the conductive busbar 6 is connected to the upper contact arm 2, and the lower end of the conductive busbar 6 is connected to the lower contact arm 3. The upper contact arm 2 and the lower contact arm 3 are fixedly connected to the conductive busbar 6 by bolts. The bolts not only provide the necessary mechanical strength to fix the upper contact arm 2, the lower contact arm 3, and the conductive busbar 6 but also ensure good electrical contact, thereby reducing the contact resistance.

[0039] In this embodiment, as Figure 2 shown, the heat sinks 5 are arranged at intervals as vertically arranged rectangular strips, and two round holes are symmetrically arranged in parallel above and below the heat sinks 5. Threaded holes are provided at the corresponding positions of the conductive busbar 6. The heat sinks 5 are fixedly connected to the conductive busbar 6 by bolts. The vertically arranged rectangular strip heat sinks 5 can provide a large heat dissipation area. At the same time, the heat sinks 5 are fixedly connected to the conductive busbar 6 by bolts, which not only realizes electrical connection but also enhances the mechanical connection between the heat sinks 5 and the conductive busbar 6, making the heat sinks 5 more stable when subjected to external forces and not easily deformed or detached.

[0040] The present utility model will be further explained and illustrated below in combination with a set of examples and drawings:

[0041] As Figure 1 shown, the upper contact arm 2, the lower contact arm 3, and the conductive busbar 6 are all made of T2 copper. T2 copper is a high-purity copper material with excellent electrical conductivity, which ensures that during power transmission, the current can pass smoothly, reducing energy loss and improving the operating efficiency of the device. Moreover, T2 copper has good tensile strength and elongation, can withstand large mechanical stresses without being easily deformed or broken, and can maintain stable performance in various environments, is not easily affected by corrosion, extends the service life of the upper contact arm 2, the lower contact arm 3, and the conductive busbar 6, and reduces the maintenance and replacement costs caused by corrosion.

[0042] Also, asFigure 1 As shown, the upper fixing plate 4 and the lower fixing plate 7 are both iron fixing plates. The iron fixing plates have high mechanical strength and can withstand large pressure, tension and shear forces, so that the upper fixing plate 4 and the lower fixing plate 7 can remain stable when fixing the conductive bar 6 and are not prone to deformation or damage. At the same time, the use of iron fixing plates can reduce the number of conductive parts in the conductive circuit of the isolation trolley and reduce costs.

[0043] like Figure 2 As shown, a heat sink 5 is provided on the conductive bar 6, and the heat sink 5 is made of aluminum alloy. The aluminum alloy heat sink 5 is installed on the conductive bar 6, which can quickly conduct the heat generated by the conductive bar 6 to the surface of the heat sink and dissipate it to the surrounding environment through air convection or radiation, effectively reducing the operating temperature of the conductive bar 6. Moreover, aluminum alloy has a low density, so the heat sink 5 can achieve a lightweight design while ensuring the heat dissipation performance, which helps to reduce the overall weight of the isolation trolley and improve the mobility and installation flexibility of the isolation trolley.

[0044] In summary, this embodiment provides a large-capacity isolated trolley conductive circuit structure, in which the conductive bar 6 is fixed inside the insulating tube 1 by fastening the upper fixing plate 4 and the lower fixing plate 7 in combination with bolts, thereby achieving high integration and stable fixation of the conductive bar 6. This not only simplifies the composition of the conductive circuit and reduces the number of conductive parts, but also significantly improves the strength and rigidity of the overall structure, effectively resists deformation and damage under external forces, ensures the stable operation of the equipment under complex working conditions, and provides comprehensive protection for the reliable operation of power equipment. It has broad application prospects and market value.

[0045] The embodiment of the present utility model also provides an isolation trolley. The isolation trolley adopts a large-capacity isolation trolley conductive loop structure, which not only improves the conductive performance and operating efficiency, enhances the structural strength and durability, but also reduces the cost by reducing the number of conductive parts in the conductive loop structure. With its excellent heat dissipation performance and lightweight design, it effectively reduces the operating temperature of the conductive bar and extends the service life of the components in the conductive loop structure. At the same time, it reduces the overall weight of the isolation trolley, improves its mobility and installation flexibility, and facilitates rapid deployment and adjustment in different scenarios.

[0046] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of the present teachings should be determined not with reference to the foregoing description, but rather with reference to the preceding claims, along with the full scope of equivalents to which such claims are entitled. For the purpose of completeness, all articles and references, including the disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be construed that the applicants did not consider such subject matter to be part of the disclosed utility model subject matter.

[0047] The above content is a further detailed description of the utility model. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as belonging to the scope of protection of the utility model determined by the submitted claims.

Claims

1. A conductive circuit structure of a large-capacity isolated switchgear trolley, characterized in that, It includes an upper fixing plate (4) and a lower fixing plate (7). Both the upper fixing plate (4) and the lower fixing plate (7) are located inside the insulating cylinder (1), and the upper fixing plate (4) and the lower fixing plate (7) jointly fix the bus bar (6).

2. The conductive circuit structure of a large-capacity isolated trolley according to claim 1, wherein The upper end of the bus bar (6) is connected to the upper contact arm (2), and the lower end of the bus bar (6) is connected to the lower contact arm (3).

3. A large-capacity isolated trolley conductive circuit structure according to claim 2, characterized in that, Both the upper contact arm (2) and the lower contact arm (3) are contact arms made of T2 copper, and the bus bar (6) is a bus bar made of T2 copper.

4. A large-capacity isolated trolley conductive loop structure according to claim 2, characterized in that, The upper contact arm (2) and the lower contact arm (3) are fixedly connected to the bus bar (6) by bolts.

5. A conductive circuit structure of a large-capacity isolated trolley according to claim 1, characterized in that, Heat sinks (5) are provided on the bus bar (6).

6. A conductive circuit structure of a large-capacity isolated trolley according to claim 5, characterized in that, The heat sinks (5) are arranged at intervals as vertically arranged rectangular strips, and two round holes are symmetrically arranged in parallel above and below the heat sinks (5). Threaded holes are provided at the corresponding positions of the bus bar (6), and the heat sinks (5) are fixedly connected to the bus bar (6) by bolts.

7. A large-capacity isolated trolley conductive circuit structure according to claim 5, characterized in that, The heat sinks (5) are aluminum alloy heat sinks.

8. A conductive circuit structure of a large-capacity isolated handcart according to claim 1, characterized in that, Both the upper fixing plate (4) and the lower fixing plate (7) are made of iron fixing plates.

9. A conductive loop structure of a large-capacity isolated handcart according to claim 1, characterized in that, Threaded holes are provided on both the upper fixing plate (4) and the lower fixing plate (7), and threaded holes are symmetrically provided on the bus bar (6). The upper fixing plate (4) and the lower fixing plate (7) fix the bus bar (6) inside the insulating cylinder (1) by bolts passing through the threaded holes.

10. An isolating trolley, characterized in that It includes the large-capacity isolating trolley conductive loop structure according to any one of claims 1-9.

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