A middle motor seat and electric bicycle
By using an adapter to form a three-dimensional rigid fixing network in the design of the electric bicycle's central motor mount, the problem of poor motor mount versatility is solved, achieving stable motor installation, material savings, and reduced production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 昆山硕意瑞智能科技有限公司
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-14
AI Technical Summary
The existing design of the mid-mounted motor mount for electric bicycles has the problem of poor versatility, which means that each motor needs to be equipped with a dedicated motor mount, resulting in repeated consumption of materials and increased mold development costs, as well as insufficient motor installation stability.
A mid-mounted motor mount is designed, which uses an adapter to form a rigid fixing network in three-dimensional space. By using a standardized body with multiple adapters of various models, stable installation of different motor models can be achieved. The design includes multiple adapters, slots, bends, protrusions and other structures on the body to enhance connection stability and versatility.
It enables stable installation of different motor models, reduces material consumption and mold development costs, and improves the versatility and installation stability of the motor mount.
Smart Images
Figure CN224503027U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electric bicycles, and particularly relates to a mid-mounted motor mount and an electric bicycle. Background Technology
[0002] Currently, the mid-mounted motor mounts for electric bicycles generally adopt a design that rigidly matches specific motor models, meaning each motor requires a dedicated mount. This approach necessitates the separate design and fabrication of corresponding motor mount structures for different motor models during frame production, resulting in redundant material consumption and increased mold development costs. While some adapter solutions exist in existing technologies, the structural design of these adapters limits the motor's installation stability to meet market demands, forcing manufacturers to continue using the traditional dedicated motor mount solution.
[0003] Therefore, it is necessary to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this application is to provide a universal mid-mounted motor mount and an electric bicycle to solve the technical problem of poor universality of motor mounts in the prior art.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: On one hand, a mid-mounted motor mount is provided, comprising:
[0006] ontology;
[0007] The adapter has a first mounting hole for connecting to the main body and a second mounting hole for connecting to the target motor. The first mounting hole and the second mounting hole are spaced apart along a first direction and at least two are respectively provided in a second direction. The adapter has multiple models according to the distance between the first mounting hole and the second mounting hole and can be selectively and alternately connected to the main body. The main body is connected to at least two adapters of the same model in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.
[0008] Compared with existing technologies, the beneficial effect of the centrally mounted motor mount in this application is that the first and second mounting holes spaced apart in the first direction form a longitudinal connection reference between the motor and the main body; the paired mounting holes in the second direction form a lateral positioning constraint; and the two symmetrically assembled mounts in the third direction form a clamping force perpendicular to the first two directions. These three sets of mutually perpendicular support systems together construct a rigid fixing network in three-dimensional space. This design allows different motor models to be stably installed in all directions using a standardized main body, provided they are matched with corresponding mounts. The main body, as a universal load-bearing structure, does not need to be remanufactured due to changes in motor model. Thus, the centrally mounted motor mount in this application achieves better versatility than existing technologies.
[0009] Optionally, a slot for mounting the adapter is formed on the main body, and the slot forms opposing sidewalls on the front and back sides of the adapter in the third direction. In this solution, the adapter can be inserted into the slot and limited by the sidewalls of the slot in the third direction, so that the target motor can be more stably connected to the main body through the adapter. Therefore, the center motor mount provided in this application can achieve better versatility by adapting to and connecting more types of target motors.
[0010] Optionally, the axial directions of both the first mounting hole and the second mounting hole are parallel to the third direction; the first mounting holes on two adjacent adapter seats are coaxial, and / or the second mounting holes on two adjacent adapter seats are coaxial. In this solution, setting the first or second mounting holes on two adapter seats to be coaxial allows the same fastener to be installed in the first or second mounting hole, thus enabling the target motor to be more stably connected to the main body via the adapter seat. Therefore, the mid-mounted motor mount provided in this application can achieve better versatility by adapting to and connecting more types of target motors.
[0011] Optionally, the adapter has multiple bends connected end-to-end, with adjacent bends arranged at a preset angle, forming a clearance notch on the adapter to fit the target motor. The clearance notch design in this solution ensures a tight fit between the adapter and the target motor while reducing material usage without sacrificing connection strength, thus enabling better versatility for the centrally located motor mount in this application.
[0012] Optionally, a smooth rounded transition is formed between adjacent bending segments. This solution utilizes a smooth rounded transition between adjacent bending segments, which not only significantly increases the structural strength of the adapter but also effectively avoids potential assembly interference between the adapter and the target motor, making the installation process smoother. This further improves the versatility of the center-mounted motor mount in this application.
[0013] Optionally, at least one of the adapters is provided with a protrusion extending from the bent section; the protrusion extends toward the opening of the clearance notch and is used to abut against the target motor in the third direction. In this design, the protrusion that abuts against the target motor housing in the third direction creates an additional support point between the adapter and the target motor, thus further improving the installation stability of the target motor while maintaining the original mounting hole positions. This also helps to further improve the versatility of the center-mounted motor mount in this application.
[0014] Optionally, a plurality of auxiliary mounting holes are formed on the protrusion, with the axial direction parallel to the third direction. In this solution, the auxiliary mounting holes on the protrusion can further improve the connection stability between the adapter and the target motor, thus contributing to a further improvement in the versatility of the mid-mounted motor mount in this application.
[0015] Optionally, a smooth rounded transition is formed between the protrusion and the bent section. In this design, the rounded transition between the protrusion and the bent section not only increases the structural strength of the adapter but also effectively avoids potential assembly interference between the adapter and the target motor, making the installation process smoother. This further improves the versatility of the center-mounted motor mount in this application.
[0016] Optionally, the center-mounted motor mount further includes a left cover and a right cover detachably connected to the main body; the left cover and the right cover are spaced apart in the third direction and cooperate with the main body to form a cavity for accommodating the adapter and the target motor. In this design, the left cover and the right cover provide a certain degree of protection for the adapter and the target motor, which helps to further improve the connection stability between the target motor and the adapter, and thus also helps to further improve the versatility of the universal center-mounted motor mount in this application.
[0017] On the other hand, this application also provides an electric bicycle, including any of the universal mid-drive motor mounts described above. Compared with the prior art, the electric bicycle provided in this application has the same technical effects as each of the aforementioned universal mid-drive motor mounts because it has any of the aforementioned universal mid-drive motor mounts, and therefore will not be described in detail here. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is an exploded view of the general-purpose mid-mounted motor mount in the embodiments of this application;
[0020] Figure 2 This is an exploded view of the general-purpose central motor mount in another embodiment of this application;
[0021] Figure 3 This is a schematic diagram of the overall structure of the adapter in the embodiments of this application;
[0022] The following are the labeling elements in the figure:
[0023] 100. Body; 101. Slot; 200. Adapter; 201. First mounting hole; 202. Second mounting hole; 203. Bending section; 204. Protrusion; 205. Auxiliary mounting hole; 300. Target motor; 401. Left cover; 402. Right cover. Detailed Implementation
[0024] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0028] Please refer to the following: Figure 1 , Figure 2 and Figure 3 The following describes a universal mid-drive motor mount provided in an embodiment of this application. The universal mid-drive motor mount includes a body 100 and an adapter 200. Wherein:
[0029] The main body 100 is a general-purpose part of the motor mount, which can achieve a stronger visual integration with the frame tubing through methods such as gravity die casting. The adapter 200 has a first mounting hole 201 for connecting to the main body 100 and a second mounting hole 202 for connecting to the target motor 300. The first mounting holes 201 and the second mounting holes 202 are spaced apart along a first direction, and at least two are respectively provided in a second direction. Multiple models of the adapter 200 are provided according to the distance between the first mounting holes 201 and the second mounting holes 202, and they are selectively and alternately connected to the main body 100. At least two adapters 200 of the same model are connected to the main body 100 in a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. For ease of explanation, in this embodiment, the first direction, the second direction, and the third direction are respectively... Figure 1 The x, y, and z directions.
[0030] According to the structure provided in this embodiment, the first mounting holes 201 and the second mounting holes 202 spaced apart in the first direction form a longitudinal connection reference between the motor and the body 100. The mounting holes distributed in pairs in the second direction form a lateral positioning constraint. The two adapters 200 symmetrically assembled in the third direction form a clamping force perpendicular to the first two directions. The three sets of mutually perpendicular support systems jointly construct a rigid fixing network in three-dimensional space. This design allows different models of motors to be stably installed in all directions by matching the corresponding adapter 200 through the standardized body 100. The body 100, as a universal load-bearing structure, does not need to be remanufactured due to changes in motor models. Thus, the universal mid-mounted motor mount in this embodiment can achieve better universality, which is far superior to the existing technology.
[0031] It is understood that the shapes of the first mounting hole 201 and the second mounting hole 202 in this embodiment are not limited. They can be selected from commonly used structures in the art, such as circular holes, rectangular holes, square holes, or polygonal holes. They can also be set as threaded holes or pin holes according to the corresponding fasteners, such as bolts or pins. In addition, multiple first mounting holes 201 and second mounting holes 202 can be provided in the first direction to enable the adapter 200 to be more securely connected to the body 100 or the target motor 300. In specific implementation, the interval between the two adapters 200 can be flexibly set according to the size of the target motor 300, and no specific limitation is made here.
[0032] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3The main body 100 has a slot 101 for mounting the adapter 200. The slot 101 has opposing sidewalls on the front and back sides of the adapter 200 in the third direction. In this embodiment, the depth of the slot 101 is not limited, and the specific implementation process can be flexibly determined according to the size of the adapter 200.
[0033] According to the structure provided in this embodiment, the adapter 200 can be inserted into the slot 101 and limited by the side wall of the slot 101 in the third direction. In this way, the target motor 300 can be more stably connected to the body 100 through the adapter 200. Thus, the universal mid-mount motor mount provided in this application can form better versatility by adapting to and connecting more types of target motors 300.
[0034] It is understood that in this embodiment, the slot 101 can be flexibly configured as an arc-shaped slot or a straight slot according to the shape of the adapter 200. Furthermore, two or more slots 101 can be arranged side-by-side in a third-direction direction. Correspondingly, the adapter 200 should also have at least two or more protrusions for insertion into the slots 101, which can further improve the connection stability between the adapter 200 and the body 100. Finally, in this embodiment, the adapter 200 can slightly abut against the side wall of the slot 101 for easy installation, and can also be fitted into the slot 101 by an interference fit, which further improves the connection stability between the adapter 200 and the body 100.
[0035] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 The axial directions of the first mounting hole 201 and the second mounting hole 202 are both parallel to a third direction; the first mounting holes 201 on two adjacent adapter seats 200 are coaxial, and / or the second mounting holes 202 on two adjacent adapter seats 200 are coaxial. It can be understood that the above structure provided in this embodiment includes at least three specific methods, wherein the first method is that the first mounting holes 201 on the two adapter seats 200 are coaxially arranged, the second method is that the second mounting holes 202 on the two adapter seats 200 are coaxially arranged, and the third method is that the first mounting holes 201 and the second mounting holes 202 on the two adapter seats 200 are both correspondingly coaxial. In actual production, the configuration can be flexibly selected according to the shape of the target motor 300. For ease of explanation, this embodiment uses the example of the first mounting holes 201 and the second mounting holes 202 being correspondingly coaxial for illustration.
[0036] According to the structure provided in this embodiment, the coaxial arrangement of the first mounting hole 201 or the second mounting hole 202 on the two adapters 200 allows the same fastener to be installed in the first mounting hole 201 or the second mounting hole 202. In this way, the target motor 300 can be more stably connected to the body 100 through the adapter 200. Thus, the universal mid-mount motor mount provided in this embodiment can achieve better versatility by adapting to and connecting more types of target motors 300.
[0037] It is understandable that the first mounting hole 201 or the second mounting hole 202 on the coaxial axis can be set to the same size or different sizes, as long as the coaxial design requirements are met. In this way, the two adapters 200 can more flexibly adapt to the corresponding mounting holes on both sides of the target motor 300, which is conducive to further improving the connection stability between the adapter 200 and the main body 100.
[0038] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 The adapter 200 has multiple bends 203 connected end to end. Adjacent bends 203 are arranged at a preset angle, forming a clearance notch in the adapter 200 that adapts to the shape of the target motor 300. In this embodiment, the multiple bends 203 formed by the adapter 200 can be configured to have the same cross-sectional shape or to have different cross-sectional shapes. For ease of explanation, this embodiment uses examples of bends 203 forming different cross-sectional shapes.
[0039] According to the structure provided in this embodiment, the design of the clearance notch in this embodiment can ensure a tight fit between the adapter 200 and the target motor 300, and can reduce the amount of material used without sacrificing the connection strength. In this way, the universal mid-mount motor mount in this application can achieve better versatility.
[0040] It is understood that the size of the clearance notch in this embodiment is not limited, as long as the target motor 300 can pass through the opening of the clearance notch. As a preferred embodiment, the size of the opening of the clearance notch in this embodiment can be set to fit the width corresponding to the target motor 300. This is beneficial for the adapter 200 and the target motor 300 to fit better, and also helps to further improve the connection stability between the adapter 200 and the target motor 300.
[0041] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 A smooth rounded transition is formed between adjacent bending segments 203.
[0042] According to the structure provided in this embodiment, the smooth rounded transition formed between adjacent bending segments 203 can not only significantly increase the structural strength of the adapter 200, but also effectively avoid possible assembly interference between the adapter 200 and the target motor 300 and make the installation process smoother. This is conducive to further improving the universal performance of the universal mid-mount motor mount in this application.
[0043] It is understood that the size of the rounded corner transition in this embodiment is not limited. In the specific implementation process, it can be flexibly set according to the length of the bending segment 203, which will not be elaborated on here.
[0044] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 At least one adapter 200 is provided with a protrusion 204 protruding from the bend 203; the protrusion 204 extends toward the opening of the clearance notch and is used to abut against the target motor 300 in the third direction.
[0045] According to the structure provided in this embodiment, the protrusion 204 that can abut against the housing of the target motor 300 in the third direction can form an additional support point between the adapter 200 and the target motor 300. This can further improve the installation stability of the target motor 300 while keeping the original mounting hole position unchanged, and thus also help to further improve the universal performance of the universal mid-mount motor mount in this application.
[0046] It is understood that one or more protrusions 204 may be provided on the adapter 200 in this embodiment. Furthermore, the shape of the protrusion 204 is not limited, and can be a triangle, rectangle, or polygon structure commonly used in the art. As a preferred embodiment, this embodiment uses a triangular shape for the protrusion 204 as an example for explanation, which utilizes the stability of a triangle to make the protrusion 204 more stably abut against the target motor 300.
[0047] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 A number of auxiliary mounting holes 205 are formed on the protrusion 204, which are axially parallel to the third direction.
[0048] According to the structure provided in this embodiment, the connection stability between the adapter 200 and the target motor 300 can be further improved by the auxiliary mounting holes 205 provided on the protrusion 204. This is beneficial to further improve the universal performance of the universal mid-mount motor mount in this application.
[0049] It is understood that the shape of the auxiliary mounting hole 205 in this embodiment is not limited. Commonly used shapes in the art, such as round holes, square holes, and polygonal holes, can be selected. It can also be set as a threaded hole or pin hole according to the corresponding fastener, such as a bolt or pin. This will not be elaborated on here.
[0050] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 A smooth rounded transition is formed between the protrusion 204 and the bend 203.
[0051] According to the structure provided in this embodiment, the rounded transition between the protrusion 204 and the bending section can not only increase the structural strength of the adapter 200, but also effectively avoid possible assembly interference between the adapter 200 and the target motor 300 and make the installation process smoother. This is conducive to further improving the universal performance of the universal mid-mount motor mount in this application.
[0052] It is understood that the size of the rounded corner transition in this embodiment is not limited. In the specific implementation process, it can be flexibly set according to the size of the protrusion 204, which will not be elaborated on here.
[0053] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 , Figure 2 and Figure 3 The universal mid-mount motor mount also includes a left cover 401 and a right cover 402 that are detachably connected to the main body 100; the left cover 401 and the right cover 402 are spaced apart in the third direction and cooperate with the main body 100 to form a cavity for accommodating the adapter 200 and the target motor 300.
[0054] According to the structure provided in this embodiment, the left cover 401 and the right cover 402 can provide a certain degree of protection for the adapter 200 and the target motor 300. This is beneficial to further improve the connection stability between the target motor 300 and the adapter 200, and also beneficial to further improve the universal performance of the universal mid-mount motor mount in this application.
[0055] In another embodiment of this application, an electric bicycle is also provided, including a universal mid-drive motor mount as described in any of the preceding embodiments. Compared with the prior art, the electric bicycle provided in this embodiment has the same technical effects as each of the aforementioned universal mid-drive motor mounts because it has any of the aforementioned universal mid-drive motor mounts, and therefore will not be described again here.
[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A centrally located motor mount, characterized in that, include: ontology; The adapter has a first mounting hole for connecting to the main body and a second mounting hole for connecting to the target motor. The first mounting hole and the second mounting hole are spaced apart along a first direction and at least two are respectively provided in a second direction. The adapter has multiple models according to the distance between the first mounting hole and the second mounting hole and can be selectively and alternately connected to the main body. The main body is connected to at least two adapters of the same model in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.
2. The centrally located motor mount as described in claim 1, characterized in that: The main body has a slot for mounting the adapter, and the slot is formed in the third direction to abut against the opposite sidewalls on the front and back of the adapter.
3. The centrally located motor mount as described in claim 1, characterized in that: The axial directions of both the first mounting hole and the second mounting hole are parallel to the third direction; The first mounting holes on two adjacent adapters are coaxial, and / or the second mounting holes on two adjacent adapters are coaxial.
4. The centrally located motor mount as described in any one of claims 1-3, characterized in that: The adapter has multiple bends connected end to end, and adjacent bends are arranged at a preset angle to form a clearance notch that adapts the shape of the adapter to the target motor.
5. The centrally located motor mount as described in claim 4, characterized in that: A smooth, rounded transition is formed between adjacent bending segments.
6. The centrally located motor mount as described in claim 4, characterized in that: At least one of the adapters is provided with a protrusion that protrudes from the bent section; The protrusion extends toward the opening of the clearance notch and is used to abut against the target motor in the third direction.
7. The centrally located motor mount as described in claim 6, characterized in that: The protrusion has several auxiliary mounting holes that are axially parallel to the third direction.
8. The centrally located motor mount as described in claim 6, characterized in that: The bump forms a smooth, rounded transition with the bent section.
9. The centrally located motor mount as described in claim 1, characterized in that: The central motor mount also includes a left cover and a right cover that are detachably connected to the main body; The left and right covers are spaced apart on the third side and cooperate with the body to form a cavity for accommodating the adapter and the target motor.
10. An electric bicycle, characterized in that, Includes the central motor mount as described in any one of claims 1-9.