A range-extending generator and internal combustion engine flywheel housing connection device
Patent Information
- Application Number
- CN202521777137.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-08-20
AI Technical Summary
与增程发电机相连接的发动机后端也有很多种状态，发动机后端连接处的飞轮壳都是已经传统内燃机转型直接借用到新能源增程状态使用，这导致增程发电机的连接端面和传统内燃机的飞轮壳安装面不能完全对接安装，安装孔位全是错位的，无法直接连接，为解决这个问题，现很多技术方案是新开增程发电机的外壳体或者新开传统内燃机的飞轮壳，不论是新开发电机的外壳体还是内燃机的飞轮壳都会导致种类的增多，同时导致增加开模，增加磨具管理和开模费，电机壳体和飞轮壳属于大磨具，模具费较高，进而导致成本大幅上升
[0010]本实用新型具有以下优点：本实用新型的增程发电机与内燃机飞轮壳连接装置，通过设置过渡连接件，进而实现了增程发电机与内燃机飞轮壳的连接，且无需对增程发电机与内燃机飞轮壳进行重新开模，只需要匹配的过渡连接件即可，从而无需增加开模费和磨具管理费，从而降低了成本，且安装方便。
Smart Images
Figure CN224874910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the installation of a range extender generator, and in particular to a connection device between a range extender generator and the flywheel housing of an internal combustion engine. Background Technology
[0002] With the development of new energy vehicles, especially the vigorous promotion of range-extending technology solutions in recent years, the types of range-extending generators are increasing. These generators are classified by configuration, voltage levels, power outputs, and efficiency ranges; and by arrangement, by axial flux motors and radial flux motors. The engine's rear end, connected to the range-extending generator, also has many configurations. The flywheel housing at the engine's rear end connection is often directly borrowed from traditional internal combustion engines for use in new energy range-extending applications. This results in the connection face of the range-extending generator and the mounting surface of the traditional internal combustion engine's flywheel housing not being able to align perfectly; the mounting holes are misaligned, making direct connection impossible. To solve this problem, many current technical solutions involve developing new range-extending generator housings or new traditional internal combustion engine flywheel housings. However, both developing new generator housings and internal combustion engine flywheel housings increase the variety of options, leading to increased mold making, mold management, and mold costs. Generator housings and flywheel housings are large molds with high mold costs, resulting in a significant increase in overall costs. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a connection device between a range extender generator and an internal combustion engine flywheel housing.
[0004] The purpose of this utility model is achieved through the following technical solution: a range extender generator and an internal combustion engine flywheel housing connection device, including a range extender generator and an internal combustion engine flywheel housing, and also including a transition connector, one end of which is connected to the range extender generator and the other end of which is connected to the internal combustion engine flywheel housing.
[0005] Optionally, the transition connector includes a connecting ring, with a first flange at one end of the connecting ring near the range extender generator, the first flange being connected to the range extender generator via a flange, and a second flange at one end of the connecting ring near the internal combustion engine flywheel housing, the second flange being connected to the internal combustion engine flywheel housing via a flange.
[0006] Optionally, several reinforcing members are installed on the outer circumference of the connecting ring, and the two side walls of the reinforcing members are respectively connected to the first flange and the second flange.
[0007] Optionally, several reinforcing members are evenly distributed on the same circumference.
[0008] Optionally, the reinforcement has a U-shaped structure.
[0009] Optionally, both the top and bottom of the first and second flanges are provided with flat surfaces.
[0010] The present invention has the following advantages: The range extender generator and the internal combustion engine flywheel housing connection device of the present invention realizes the connection between the range extender generator and the internal combustion engine flywheel housing by setting a transition connector, and there is no need to re-mold the range extender generator and the internal combustion engine flywheel housing. Only a matching transition connector is needed, thereby eliminating the need to increase mold opening costs and mold management costs, thus reducing costs, and is easy to install. Attached Figure Description
[0011] Figure 1 A schematic diagram showing the connection between the transition connector and the internal combustion engine flywheel housing and the range extender generator; Figure 2 This is a structural schematic diagram of the transition connector; Figure 3 for Figure 2 Schematic diagram of the cross section of AA; Figure 4 for Figure 3 Cross-sectional view of BB; In the diagram, 1-internal combustion engine flywheel housing, 2-transition connector, 3-range extender generator, 21-connecting ring, 22-reinforcing member, 23-first flange, 24-second flange, 25-flat surface. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0013] 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 merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0014] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] like Figure 1 As shown, a connection device between a range extender generator 3 and an internal combustion engine flywheel housing 1 includes a range extender generator 3 and an internal combustion engine flywheel housing 1, and also includes a transition connector 2. One end of the transition connector 2 is connected to the range extender generator 3, and the other end of the transition connector 2 is connected to the internal combustion engine flywheel housing 1. The range extender generator 3 and the internal combustion engine flywheel housing 1 are connected through the transition connector 2, thereby reducing the mold development of the range extender generator 3 and the internal combustion engine flywheel housing 1, and solving the problem that the mating surfaces of the range extender generator 3 and the internal combustion engine flywheel housing 1 cannot be directly connected.
[0019] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the transition connector 2 includes a connecting ring 21. A first flange 23 is provided on the end of the connecting ring 21 near the range extender 3. The first flange 23 is connected to the range extender 3 via a flange. A second flange 24 is provided on the end of the connecting ring 21 near the internal combustion engine flywheel housing 1. The second flange 24 is connected to the internal combustion engine flywheel housing 1 via a flange. In this embodiment, the transition connector 2 has a simple structure and low manufacturing cost. Therefore, various types of transition connectors 2 can be manufactured according to the mating end face of the internal combustion engine flywheel housing 1 and the mating end face of the range extender 3. During installation, the operator can directly select the appropriate transition connector 2 for installation based on the mating end face of the internal combustion engine flywheel housing 1 and the mating end face of the range extender 3.
[0020] In this embodiment, as Figure 3 and Figure 4 As shown, several reinforcing members 22 are installed on the outer circumference of the connecting ring 21, and the two side walls of the reinforcing members 22 are connected to the first flange 23 and the second flange 24 respectively. The reinforcing members 22 increase the structural strength of the transition connecting member 2 and ensure the reliability of the transition connecting member 2. Furthermore, the several reinforcing members 22 are evenly distributed on the same circumference, and the reinforcing members 22 have a U-shaped structure. The reinforcing members 22 are all connected to the first flange 23, the second flange 24, and the connecting ring 21 by welding.
[0021] In this embodiment, as Figure 4 As shown, the top and bottom of the first flange 23 and the second flange 24 are provided with flat surfaces 25. During initial installation, the position of the flat surfaces 25 can be adjusted, thereby adjusting the position of the first flange 23 and the second flange 24 on the circumference. This allows for the quick installation of the internal combustion engine flywheel housing 1 and the transition connector 2, as well as the range extender generator 3 and the transition connector 2.
[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 connection device between a range extender generator and an internal combustion engine flywheel housing, comprising a range extender generator and an internal combustion engine flywheel housing, characterized in that: It also includes a transition connector, one end of which is connected to the range extender generator, and the other end of which is connected to the internal combustion engine flywheel housing.
2. The range extender generator and internal combustion engine flywheel housing connection device according to claim 1, characterized in that: The transition connector includes a connecting ring, on which a first flange is provided at one end near the range extender generator, the first flange being connected to the range extender generator via a flange, and on which a second flange is provided at one end near the internal combustion engine flywheel housing, the second flange being connected to the internal combustion engine flywheel housing via a flange.
3. The connection device between a range extender generator and an internal combustion engine flywheel housing according to claim 2, characterized in that: Several reinforcing members are installed on the outer circumference of the connecting ring, and the two side walls of the reinforcing members are respectively connected to the first flange and the second flange.
4. The connection device between a range extender generator and an internal combustion engine flywheel housing according to claim 3, characterized in that: Several reinforcing members are evenly distributed on the same circumference.
5. The connection device between a range extender generator and an internal combustion engine flywheel housing according to claim 4, characterized in that: The reinforcing member has a U-shaped structure.
6. The range extender generator and internal combustion engine flywheel housing connection device according to claim 5, characterized in that: Both the first flange and the second flange have flat surfaces at their top and bottom.