Heat insulation device for extended range generator controller

Abstract

The utility model relates to a heat insulation device for a range-extended generator controller, which is mounted between a range-extended generator and the range-extended generator controller and is in a shell shape, knurling patterns are arranged on the heat insulation device, and a bent surface is arranged on the edge of the heat insulation device. Compared with the prior art, the knurled heat insulation device has the advantages that the knurled patterns are arranged, so that the heat insulation device has extremely high heat reflectivity, extremely low heat conductivity and high temperature resistance, heat transfer can be effectively isolated, the ambient temperature around a controller is reduced, and a generator system assembly is protected; the bending surface with obvious height fluctuation change characteristics improves the strength and the vibration resistance; the turnup structure further improves the strength and the convenience of installation and operation; the shell-shaped structure is made of single-layer aluminum alloy, and has the advantages of light weight, no need of electroplating, lower cost and the like.

Description

Technical Field

[0001] The utility model relates to a heat insulation device, in particular to a heat insulation device for an extended-range generator controller. Background Art

[0002] In the current new energy vehicle market, extended-range vehicles are developing very rapidly. As an intermediate route between fuel vehicles and electric vehicles, compared with pure electric vehicles, extended-range vehicles have certain cost advantages and can effectively solve consumers' range anxiety. As the core component of an extended-range vehicle, since the extender is directly connected to the engine, the environmental temperature is very high. Especially for extreme working conditions, such as low-speed climbing, high torque, and vehicle parking, the engine continues to run, the cooling fan does not work, and the heat generation is serious. The highest temperature around the engine can reach over 180 °C. While the environmental temperature of the generator controller in the extender generally does not exceed 105 °C during operation. Affected by the thermal radiation and hot air flow of the heat-generating components during operation, there is a risk of high-temperature failure.

[0003] After retrieval, the authorized announcement number CN205098094U discloses a generator heat insulation cover, which specifically discloses: a heat insulation cover body made of a formed aluminized steel plate, the heat insulation cover body having a groove and a plurality of lugs, the plurality of lugs being spaced apart along the circumferential direction of the groove; the plurality of lugs being located at the notch of the groove, the plurality of lugs being fixedly connected to the groove, and the plurality of lugs respectively extending outward along the radial direction of the groove; the heat insulation cover body further having a reinforcing rib structure. However, this heat insulation cover mainly ensures that the heat insulation cover body is not easily damaged by setting reinforcing ribs, and the heat insulation performance is not high.

[0004] In summary, how to design a heat insulation device with strong heat insulation performance is a technical problem to be solved. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a heat insulation device for an extended-range generator controller to overcome the defect of low heat insulation performance in the above-mentioned existing technology.

[0006] The purpose of the present utility model can be achieved by the following technical solutions:

[0007] According to one aspect of the present utility model, there is provided a heat insulation device for an extended-range generator controller, which is installed between an extended-range generator and an extended-range generator controller. The heat insulation device is in a shell shape, and has knurled patterns for improving heat dissipation performance, and a bent surface at the edge.

[0008] As a preferred technical solution, the bent surface is bent towards the extended-range generator controller to achieve close fitting.

[0009] As a preferred technical solution, the heat insulation device includes a first heat insulation sheet, a second heat insulation sheet, and a third heat insulation sheet that are perpendicular to each other, covering a corner of the range extender generator controller close to the range extender generator.

[0010] As a preferred technical solution, the folded curved surface includes a first folded curved surface and a second folded curved surface provided on the edge of the first heat insulation sheet, and a third folded curved surface provided on the edge of the second heat insulation sheet.

[0011] As a preferred technical solution, an installation boss is provided on a surface of the heat insulation device away from the range extender generator controller, and the connecting member connects the heat insulation device and the range extender generator controller through the installation boss.

[0012] As a preferred technical solution, the installation boss includes a first installation boss, a second installation boss, and a third installation boss respectively provided on the first heat insulation sheet, the second heat insulation sheet, and the third heat insulation sheet.

[0013] As a preferred technical solution, an avoidance hole and a binding hole are provided on a surface of the heat insulation device close to the range extender generator controller.

[0014] As a preferred technical solution, a flanging structure is provided on the edge of a surface of the heat insulation device close to the range extender generator controller.

[0015] As a preferred technical solution, the knurling pattern includes a plurality of continuous knurling dimples and knurling protrusions.

[0016] As a preferred technical solution, the heat insulation device is a shell-like structure made of a single layer of aluminum alloy.

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

[0018] 1) The present utility model is provided with a knurling pattern. The heat insulation device with the knurling pattern has a much larger reflection area than a flat heat insulation device, has an extremely high heat reflectivity, an extremely low thermal conductivity, and high temperature resistance, can effectively isolate heat transfer, reduce the ambient temperature around the controller, and play a role in protecting the generator system assembly; it has a folded curved surface with obvious height fluctuation characteristics, which improves the strength and anti-vibration performance. The folded curved surface is bent towards the range extender generator controller and closely attached to it, which helps to improve the heat dissipation effect;

[0019] 2) The present utility model is provided with a flanging structure, which further improves the strength and the convenience of installation operation;

[0020] 3) The present utility model is a shell-like structure made of a single layer of aluminum alloy, which is light in weight, does not require electroplating, and has a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the installation position of the present utility model;

[0022] Figure 2 This is a front - view structural schematic diagram of the present utility model;

[0023] Figure 3 This is a back - view structural schematic diagram of the present utility model;

[0024] Figure 4 This is a cross - sectional view of the knurling pattern of the present utility model;

[0025] As indicated by the reference numerals in the figure:

[0026] 1. Extended - range generator controller, 2. Heat - insulation device, 21. First heat - insulation sheet, 211. First mounting boss, 212. First bending surface, 213. Second bending surface, 22. Second heat - insulation sheet, 221. Second mounting boss, 222. Third bending surface, 23. Third heat - insulation sheet, 231. Third mounting boss, 24. Flanging structure, 25. Avoidance hole, 26. Binding hole, 31. Knurling concave point, 32. Knurling convex point. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figure 1 shown, the present utility model provides a heat - insulation device for an extended - range generator controller, which is installed on the upper - left side of the extended - range generator controller 1 and is used to isolate the high - temperature heat source of the engine. The direction indicated by the arrow is the heat - transfer direction of the high - temperature heat source.

[0029] The heat - insulation device 2 is a shell - like structure made of single - layer aluminum alloy and can be formed by stamping 5 - series aluminum alloy. The heat - insulation device 2 includes a first heat - insulation sheet 21, a second heat - insulation sheet 22, and a third heat - insulation sheet 23 that are perpendicular to each other, and its shape is a triangular pyramid, which is convenient for installation at a corner of the extended - range generator controller 1 close to the extended - range generator.

[0030] As Figure 2As shown in the figure, the side of the heat insulation device 2 close to the range extender generator controller 1 is provided with an installation boss and a bending surface. The first heat insulation sheet 21 is provided with a first installation boss 211, the second heat insulation sheet 22 is provided with a second installation boss 221, and the third heat insulation sheet 23 is provided with a third installation boss 231. The installation bosses are used to install the heat insulation device 2 on the range extender generator controller 1; the edge of the first heat insulation sheet 21 is provided with a first bending surface 212 and a second bending surface 213, and the edge of the second heat insulation sheet 22 is provided with a third bending surface 222. The designed bending surface has obvious height fluctuation characteristics, which can increase the strength and reliability of the heat insulation device 2. The bending surface is bent towards the range extender generator controller 1 and closely adheres to the range extender generator controller 1, which can further improve the heat dissipation effect.

[0031] As Figure 3 shown, the side of the heat insulation device 2 far from the range extender generator controller 1 is provided with an avoidance hole 25 and a lashing hole 26 at the edge, and a flanging structure 24 is provided at the edge. The flanging structure 24 can not only improve the strength but also increase the convenience of installation operation.

[0032] As Figure 4 shown, the heat insulation device 2 adopts a knurling process to form knurling patterns on the aluminum alloy surface. The knurling patterns include continuous knurling dimples 31 and knurling protrusions 32, which are used to improve the thermal reflectivity.

[0033] The forming and assembling process of the present utility model is as follows:

[0034] 1) Perform knurling treatment on the 5-series aluminum alloy plate on the knurling equipment;

[0035] 2) Perform blanking, punching and bending forming on the aluminum alloy plate with knurling treatment;

[0036] 3) Perform flanging treatment on the edge of the aluminum alloy;

[0037] 4) Perform flattening treatment on the installation terminal boss area;

[0038] 5) Install the formed heat insulation cover above the generator system controller;

[0039] So far, the installation of the present utility model is completed.

[0040] The advantages of the present utility model include:

[0041] 1) It has very high heat insulation and reflectivity. It is formed by stamping aluminum alloy with knurling. The heat reflection area of the knurled aluminum alloy is much larger than that of the flat aluminum plate. It has extremely high heat reflectivity, extremely low thermal conductivity and high temperature resistance, can effectively isolate heat transfer, reduce the ambient temperature around the controller, and play a role in protecting the generator system assembly;

[0042] 2) It has high strength and vibration resistance. The 5-series aluminum alloy is used for stamping the knurled plate. There are many free-form surfaces designed in the structure, which have obvious characteristics of height fluctuations. At the same time, flanging treatment is carried out to improve the strength and the convenience of installation and operation;

[0043] 3) It has the characteristics of light weight and low cost. Different from the previous sandwich three-layer heat insulation device, stainless steel heat insulation device, etc., a single-layer aluminum alloy heat insulation design is used, which is light in weight, does not require electroplating, and has a lower cost.

[0044] As mentioned above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A heat insulation device for a range extender generator controller, installed between the range extender generator and the range extender generator controller (1), characterized in that: The heat insulating device (2) is in the shape of a shell and is provided with a knurled pattern for improving heat dissipation performance, and has a folded curved surface at its edge.

2. A heat insulation device for a range extender generator controller according to claim 1, characterized in that: The bent surface is bent toward the range-extended generator controller (1) so as to achieve close contact.

3. A heat insulation device for a range extender generator controller according to claim 1, characterized in that: The heat insulation device (2) comprises a first heat insulation sheet (21), a second heat insulation sheet (22) and a third heat insulation sheet (23) which are perpendicular to each other and cover a corner of the range-extending generator controller (1) close to the range-extending generator.

4. A heat insulation device for a range extender generator controller according to claim 3, characterized in that: The folded curved surface comprises a first folded curved surface (212) and a second folded curved surface (213) provided on the edge of the first thermal insulation sheet (21), and a third folded curved surface (222) provided on the edge of the second thermal insulation sheet (22).

5. A heat insulation device for a range extender generator controller according to claim 3, characterized in that: A mounting boss is provided on a surface of the heat insulating device (2) away from the range-extending generator controller (1), and a connecting piece connects the heat insulating device (2) and the range-extending generator controller (1) via the mounting boss.

6. A heat insulation device for a range extender generator controller according to claim 5, characterized in that: The mounting bosses comprise a first mounting boss (211), a second mounting boss (221) and a third mounting boss (231) which are respectively arranged on the first heat insulation sheet (21), the second heat insulation sheet (22) and the third heat insulation sheet (23).

7. A heat insulation device for a range extender generator controller according to claim 1, characterized in that: A side of the heat insulation device (2) close to the range-extending generator controller (1) is provided with an avoidance hole (25) and a lashing hole (26).

8. A heat insulation device for a range extender generator controller according to claim 1, characterized in that: The edge of one side of the heat insulation device (2) close to the range-extended generator controller (1) is provided with a flange structure (24).

9. A heat insulation device for a range extender generator controller according to claim 1, characterized in that: The knurling pattern comprises a plurality of continuous knurling concave points (31) and knurling protrusions (32).

10. A heat insulation device for a range extender generator controller according to claim 1, characterized in that: The heat insulation device (2) is a shell-like structure made of a single layer of aluminum alloy.

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