Insulating plate for vehicle-mounted power transformer

Abstract

The utility model discloses an insulating plate for a vehicle-mounted power transformer, which relates to the field of transformer accessories and comprises an insulating plate main body, mounting holes are arranged at four corners of the insulating plate main body, the insulating plate main body comprises a base layer, a reinforcing layer and a protective layer, the reinforcing layer is arranged at the top of the base layer, and the protective layer is arranged at the bottom of the reinforcing layer. The protection layer is arranged at the top of the enhancement layer; the base layer is a high-temperature-resistant insulating ceramic fiber paper layer; the reinforcing layer is a high-strength aramid fiber cloth layer; and the protective layer adopts a polyimide film layer. According to the utility model, many defects of a traditional insulating plate in a vehicle-mounted environment are effectively overcome, the insulating property, the mechanical strength, the heat dissipation capability and the like are remarkably improved through unique material selection and structural design, a powerful guarantee is provided for safe, stable and efficient operation of a vehicle-mounted power transformer, and the service life of the vehicle-mounted power transformer is prolonged. The method has an important practical value and a wide application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer accessories field, concretely relates to an insulating plate for vehicle-mounted power transformer. BACKGROUND

[0002] With the rapid development of automobile electronic technology, the application of vehicle-mounted power transformer is increasingly widespread, which plays a key role in guaranteeing the normal power supply of vehicle electrical equipment. In the process of vehicle operation, vehicle-mounted power transformer faces many adverse conditions, such as frequent vibration, temperature change, electromagnetic interference and limited installation space. The material of the traditional insulating plate has obvious shortcomings in these aspects, which cannot meet the special requirements of vehicle-mounted power transformer.

[0003] The traditional insulating plate may crack and delaminate under long-term vibration environment, resulting in a decrease in insulation performance, and in severe cases, it may cause electrical short circuit and endanger vehicle safety. At the same time, the temperature in the vehicle engine compartment is relatively high, and some areas can reach above 100℃ during operation. Generally, the insulating material may soften and deform under high temperature, losing the insulation effect.

[0004] Therefore, an insulating plate for vehicle-mounted power transformer is proposed. SUMMARY

[0005] In view of the above problems of the existing insulating plate for vehicle-mounted power transformer, the utility model is proposed.

[0006] Therefore, the utility model aims to provide an insulating plate for vehicle-mounted power transformer, which solves the problems in the background art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] An insulating plate for vehicle-mounted power transformer, comprising an insulating plate main body, mounting holes are formed at the four corners of the insulating plate main body, the insulating plate main body comprises a base layer, a reinforcing layer and a protective layer, the reinforcing layer is arranged on the top of the base layer, and the protective layer is arranged on the top of the reinforcing layer.

[0009] The base layer adopts a high-temperature-resistant insulating ceramic fiber paper layer.

[0010] The reinforcing layer adopts a high-strength aramid fiber cloth layer.

[0011] The protective layer adopts a polyimide film layer.

[0012] Preferably, a heat dissipation layer is arranged between the base layer and the reinforcing layer, the heat dissipation layer adopts heat dissipation copper foil filaments and is arranged in a grid shape, the thickness of the heat dissipation layer is 0.05-0.1 millimeters, the surface of the insulating plate main body is provided with a plurality of uniformly distributed heat dissipation grooves, and the bottom of the heat dissipation groove extends to the upper surface of the heat dissipation layer.

[0013] Preferably, the lower surface edge of the base layer is provided with an annular rubber buffer strip.

[0014] Preferably, the inside of the mounting hole is fixedly provided with a metal reinforcing ring, and the lower end of the metal reinforcing ring is flush with the bottom of the annular rubber buffer strip.

[0015] Further, the thickness of the base layer is 0.5-1.2 mm, the thickness of the reinforcing layer is 0.3-0.8 mm, and the thickness of the protective layer is 0.2-0.5 mm.

[0016] Preferably, the diameter of the mounting hole is 3.0-10.0 mm, the metal reinforcing ring is a stainless steel ring, and the diameter of the metal reinforcing ring is 5.0-15.0 mm.

[0017] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0018] 1. In the utility model, the base layer adopts a high-temperature-resistant insulating ceramic fiber paper layer, which can maintain stable insulation performance under high temperature, high humidity and complex electromagnetic environment, effectively prevents electrical short circuit and electric leakage, and greatly improves the safety and stability of the vehicle-mounted power supply system; the reinforcing layer selects a high-strength aramid fiber cloth layer, which gives the insulating plate high mechanical strength, so that it can withstand severe vibration, impact and mechanical stress during vehicle operation; the polyimide film of the protective layer further enhances the resistance to chemicals and humid environment, significantly prolongs the service life of the insulating plate, and reduces the vehicle maintenance frequency and cost caused by insulation failure.

[0019] 2. In the utility model, the heat dissipation layer arranged between the base layer and the reinforcing layer adopts heat dissipation copper foil wires and is distributed in a grid shape, has good thermal conductivity, can quickly conduct the heat generated by the vehicle-mounted power supply transformer, and the plurality of uniformly distributed heat dissipation grooves on the surface of the insulating plate body further increase the heat dissipation area and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the partial cut structure of the utility model Figure 1 .

[0023] Figure 3 For the utility model Figure 2 The structure diagram of the heat dissipation layer is shown in the figure.

[0024] Figure 4 For the utility model Figure 1 The schematic diagram of the back three-dimensional structure is shown in the figure.

[0025] Mark explanation:

[0026] 1, insulation board main body, 2, mounting hole, 3, base layer, 4, reinforcing layer, 5, protective layer, 6, heat dissipation layer, 7, heat dissipation groove, 8, annular rubber buffer strip, 9, metal reinforcing ring. Specific implementation

[0027] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0028] The utility model provides a kind of insulation board for vehicle-mounted power transformer as Figures 1-2 Shown, including insulation board main body 1, mounting hole 2 is set in the four corners of insulation board main body 1, insulation board main body 1 includes base layer 3, reinforcing layer 4 and protective layer 5, reinforcing layer 4 is set to the top of base layer 3, protective layer 5 is set to the top of reinforcing layer 4, the thickness of base layer 3 is 0.5-1.2 millimeter, the thickness of reinforcing layer 4 is 0.3-0.8 millimeter, the thickness of protective layer 5 is 0.2-0.5 millimeter;Base layer 3 uses high-temperature-resistant insulating ceramic fiber paper layer, it can keep stable insulation performance under high temperature, high humidity and complex electromagnetic environment, effectively prevent electrical short circuit and electric leakage phenomenon, greatly improve the safety and stability of vehicle-mounted power supply system;Reinforcing layer 4 uses high-strength aramid fiber cloth layer, so that it can withstand severe vibration, impact and mechanical stress in the process of vehicle operation;Protective layer 5 uses polyimide film layer, enhances the resistance to chemical substances and humid environment, significantly prolongs the service life of insulation board.

[0029] As Figures 1-3 Shown, base layer 3 and reinforcing layer 4 are provided with heat dissipation layer 6, and heat dissipation layer 6 is provided with heat dissipation copper foil silk and is distributed in grid shape, the thickness of heat dissipation layer 6 is 0.05-0.1 millimeter, the surface of insulation board main body 1 is provided with a plurality of evenly distributed heat dissipation grooves 7, and the bottom of heat dissipation groove 7 extends to the upper surface of heat dissipation layer 6, heat dissipation copper foil silk has good thermal conductivity, can quickly conduct the heat generated by vehicle-mounted power transformer out, and the plurality of evenly distributed heat dissipation grooves 7 on the surface of insulation board main body 1 further increase the heat dissipation area, improve the heat dissipation efficiency.

[0030] As Figure 1 And 4As shown, the lower surface edge of the base layer 3 is provided with an annular rubber buffer strip 8, which can effectively absorb and buffer the vibration energy and reduce the damage of vibration to the insulating plate body 1;The inside of the mounting hole 2 is fixedly provided with a metal reinforcing ring 9, and the lower end of the metal reinforcing ring 9 is flush with the bottom of the annular rubber buffer strip 8, the diameter of the mounting hole 2 is 3.0-10.0mm, the metal reinforcing ring 9 adopts a stainless steel ring, and the diameter of the metal reinforcing ring 9 is 5.0-15.0mm, the metal reinforcing ring 9 not only enhances the strength of the mounting hole 2, prevents deformation or rupture during installation and use, but also ensures good grounding effect, further improves the structural integrity and connection reliability of the insulating plate body 1 during long-term use.

[0031] The shape of the insulating plate body 1 can be customized according to the contour of the transformer side wall during installation, for example, for square or rectangular transformer side walls, the insulating plate body 1 can be designed into a corresponding shape, and directly attached to the side wall through a bolt fixing piece, which can effectively isolate the transformer side wall from the surrounding metal parts or other conductive bodies, prevent the side wall from leaking and short circuiting.

[0032] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. An insulating panel for an on-board power transformer, comprising an insulating panel body (1), characterized in that: The mounting hole (2) is arranged at the four corners of the insulation plate body (1), the insulation plate body (1) comprises a base layer (3), a reinforcing layer (4) and a protective layer (5), the reinforcing layer (4) is arranged on the top of the base layer (3), and the protective layer (5) is arranged on the top of the reinforcing layer (4); The base layer (3) is made of high-temperature-resistant insulating ceramic fiber paper layer; The reinforcing layer (4) is made of high-strength aramid fiber cloth layer; The protective layer (5) is made of polyimide film layer.

2. The vehicle-mounted power transformer insulation board according to claim 1, characterized by: The heat dissipation layer (6) is arranged between the base layer (3) and the reinforcing layer (4), the heat dissipation layer (6) is made of heat dissipation copper foil wire and is arranged in a grid shape, the thickness of the heat dissipation layer (6) is 0.05-0.1mm, the surface of the insulation plate body (1) is provided with a plurality of evenly distributed heat dissipation grooves (7), and the bottom of the heat dissipation groove (7) extends to the upper surface of the heat dissipation layer (6).

3. The vehicle-mounted power transformer insulation board according to claim 1, characterized by: The lower surface edge of the base layer (3) is provided with an annular rubber buffer strip (8).

4. The vehicle-mounted power transformer insulation panel of claim 3, wherein: The inside of the mounting hole (2) is fixedly provided with a metal reinforcing ring (9), and the lower end of the metal reinforcing ring (9) is flush with the bottom of the annular rubber buffer strip (8).

5. The vehicle-mounted power transformer insulation board according to claim 1, characterized by: The thickness of the base layer (3) is 0.5-1.2mm, the thickness of the reinforcing layer (4) is 0.3-0.8mm, and the thickness of the protective layer (5) is 0.2-0.5mm.

6. The vehicle-mounted power transformer insulation panel of claim 4, wherein: The diameter of the mounting hole (2) is 3.0-10.0mm, the metal reinforcing ring (9) is made of stainless steel ring, and the diameter of the metal reinforcing ring (9) is 5.0-15.0mm.

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