Novel trolley pole

Abstract

The utility model discloses a novel trolley pole, which comprises a tubular bus and an insulating layer arranged outside the tubular bus, the insulating layer is an insulating net sleeve pre-woven by insulating materials, the insulating layer with uniform wall thickness is further obtained, and during processing, the surface of the tubular bus can be coated with an adhesive, so that the wall thickness of the tubular bus is uniform. The insulating net sleeve is stretched from the two ends to be attached to the tubular bus, the required trolley pole can be obtained after the adhesive is cured, and an epoxy resin layer can be further added outside the insulating net sleeve to further enhance the connection strength between the tubular bus and the insulating net sleeve layer.

Description

Technical Field

[0001] This solution relates to the field of trolleybuses, specifically involving a new type of collector pole. Background Technology

[0002] The current collector poles used on trolleybuses support current collector heads at their ends. During operation, these current collector heads need to be supported to rise and contact the contact wire to achieve electrical connection. Their length is typically 5 meters. The current collector poles need sufficient strength to support the current collector heads and also need to conduct electricity. As live components of the vehicle, the current collector poles must be equipped with an insulation layer for safety protection. Current technical solutions for current collector poles generally consist of an internal aluminum alloy tubular busbar and an external insulation layer; some products have structural bends or diameter changes.

[0003] Current processes for fabricating the insulation layer of current collector poles typically involve wrapping insulating fiberglass cloth around a tubular busbar and impregnating it with an adhesive. Generally, a long strip of fiberglass cloth, roughly the same length as the current collector pole, is prepared and then wrapped widthwise. To ensure the integrity of the insulation layer, the wrapped fiberglass cloth must have a certain overlap area. Then, an adhesive such as epoxy resin is applied to the fiberglass cloth, and after the adhesive cures, a coating is applied. Figure 1 Between points a and b, it is clear that the thickness at point a is greater than that at point b. Therefore, this processing method results in uneven thickness of the insulation layer in the finished current collector pole, affecting product quality; the process is also more complicated and it is not easy to distribute the insulation evenly during construction. In this type of insulation layer, fiberglass cloth is the reinforcing material, and the adhesive is the bonding material; together, they constitute a composite material. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a current collector pole that is easier to install with an insulation layer.

[0005] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A novel current collector pole, wherein the insulating layer comprises an insulating mesh with a pre-woven cross-section of insulating material and an adhesive, the two being combined into a composite material and bonded to a tubular busbar.

[0007] Compared to existing technologies, this solution offers the following advantages: the pre-woven insulating mesh is a single, integral unit in the circumferential direction, eliminating the need for wrapping or overlapping. Therefore, the finished product will not exhibit uneven insulation thickness across its cross-section. Since the insulating mesh itself is inelastic, it can be easily fitted without the need for multiple workers during installation. Subsequently, by stretching, smoothing, and leveling to both sides, the inner diameter of the insulating mesh is reduced, allowing it to adhere to the tubular busbar at diameter changes and bends. Once the adhesive material has cured, the finished product is obtained. This solution is easier to install and ensures product consistency.

[0008] Furthermore, an interface layer is coated between the insulation layer and the tubular busbar, the interface layer being designed to improve the bonding strength between the adhesive and the tubular busbar.

[0009] The adhesive layer can enhance the connection between the insulation layer and the tubular busbar.

[0010] Furthermore, the adhesive is an organic resin.

[0011] Furthermore, an epoxy resin layer is also provided on the outside of the insulating mesh layer.

[0012] The epoxy resin layer is applied to the insulating mesh layer by coating and is impregnated and bonded to it, thereby further improving the structural strength of the current collector pole.

[0013] A method for processing a current collector pole involves preparing a tubular busbar and an insulating mesh sleeve. An interface layer and adhesive are applied to the surface of the tubular busbar. The insulating mesh sleeve is then fitted from one end. By stretching the insulating mesh sleeve from both ends, along with scraping and smoothing actions, the insulating mesh sleeve is tightly adhered to the tubular busbar, allowing the adhesive to penetrate into the gaps of the insulating mesh sleeve. After the adhesive cures, the tubular busbar and the insulating mesh sleeve are tightly bonded together. Subsequently, an epoxy resin layer is applied to the outside of the insulating mesh sleeve, and the current collector pole is slowly rotated along its axis to prevent the epoxy resin from accumulating under gravity and causing uneven thickness, until the epoxy resin cures, resulting in a current collector pole with a uniform insulation layer thickness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the application scenarios of the collector pole;

[0015] Figure 2 This is a schematic diagram of the cross-section of a current collector pole in the prior art;

[0016] Figure 3 This is a schematic diagram of the cross-section of the current collector pole in Example 1;

[0017] Figure 4 This is a partial schematic diagram of the cross-section of the current collector pole in Example 2;

[0018] Figure 5 This is a partial schematic diagram of the cross-section of the current collector pole in Example 3;

[0019] The following is a list of component names represented by the reference numerals in the attached diagram:

[0020] 1. Current collector head; 2. Current collector pole; 3. Vehicle roof; 4. Tubular busbar; 5. Insulating mesh layer; 6. Interface layer; 7. Epoxy resin layer. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] like Figure 1 As shown, this is a schematic diagram of the application scenario of the current collector 2. It is installed on the top 3 of the vehicle and the current collector head 1 is fixed at the end. The length of the current collector 2 is generally about 5 meters. On the one hand, the current collector 2 needs to have sufficient strength to support the current collector head 1, and on the other hand, it needs to bear the function of conducting electricity. It is a live part of the vehicle, so its exterior must be equipped with an insulating layer for safety protection to ensure safety. Currently, commonly used current collectors are generally composed of an internal aluminum alloy tubular busbar and an external insulating layer. Figure 2 It can be seen that the thickness of the insulation layer at point a is greater than that at point b.

[0023] Example 1:

[0024] like Figure 3 As shown, a novel current collector pole includes a tubular busbar 4, with an insulating mesh layer 5 on the outside of the tubular busbar. The insulating mesh layer 5 is an insulating mesh pre-woven from insulating materials, such as glass fiber. These insulating materials themselves have no elasticity, but after being woven into a mesh, their inner diameter will shrink to a certain extent when stretched at both ends. An adhesive such as epoxy resin is coated on the surface of the tubular busbar 4, and then the insulating mesh layer is fitted onto the surface of the tubular busbar 4, thus making it relatively easy to obtain a current collector pole with a uniform wall thickness insulation layer.

[0025] Example 2:

[0026] like Figure 4 As shown, unlike Example 1, in this example, an interface layer 6 is further provided between the tubular busbar 4 and the insulating mesh layer. The interface layer 6 is used to improve the bonding force between the aluminum tubular busbar and the epoxy resin, enhancing its adhesion. The liquid epoxy resin penetrates into the gaps of the insulating mesh layer, achieving a tight bond between the tubular busbar 4 and the insulating mesh layer. In this example, the epoxy resin is the adhesive material, and the insulating mesh layer is the reinforcing material; together, they constitute a composite material. Obviously, epoxy resin is only one example; any organic resin capable of bonding the insulating mesh layer and the tubular busbar together can be used, such as polyurethane adhesives, urea-formaldehyde resin adhesives, etc.

[0027] Example 3:

[0028] In this example, an epoxy resin layer is added to the outermost layer based on the aforementioned embodiments. Based on Embodiment 1, the current collector rod is slowly rotated along its own axis while a layer of epoxy resin is uniformly coated on the outer surface of the insulating mesh sleeve. The current collector rod continues to rotate slowly, allowing the epoxy resin to evenly penetrate and wet the gaps in the insulating mesh sleeve. At the same time, uncured epoxy resin is prevented from accumulating downwards under gravity until the epoxy resin cures, resulting in a current collector rod with a uniform wall thickness insulation layer.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel current collector pole, comprising a tubular busbar and an insulating layer disposed outside the tubular busbar, characterized in that, The insulation layer comprises an insulating mesh with a pre-woven cross-section of insulating material and an adhesive, which are combined into a composite material and bonded to the tubular busbar.

2. The novel current collector pole according to claim 1, characterized in that, An interface layer is applied between the insulation layer and the tubular busbar.

3. The novel current collector pole according to claim 2, characterized in that, The adhesive is an organic resin.

4. The novel current collector pole according to any one of claims 1-3, characterized in that, An epoxy resin layer is also provided on the outside of the insulating layer.

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