Connecting piece and electric vehicle

Abstract

The invention relates to the technical field of electric vehicle assembly, in particular to a connecting piece and an electric vehicle. A first mounting hole and a second mounting hole are formed in the body at intervals in the thickness direction of the body, the handlebar is fixedly arranged in the first mounting hole, and the vertical pipe is fixedly arranged in the second mounting hole; the axis of the first mounting hole is parallel to the center line of the body, and the axis of the second mounting hole is perpendicular to the axis of the first mounting hole. According to the connecting piece and the electric vehicle, the adjustment degree of the handlebar is obviously improved, the requirements of users with different heights and different riding postures are met, the body load in the riding process is obviously reduced, and the man-machine engineering comfort degree is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle assembly technology, specifically to a connector and an electric vehicle. Background Technology

[0002] In recent years, with continuous economic development, the number of motor vehicles has been increasing, leading to increasingly serious problems such as traffic congestion and vehicle exhaust pollution. Electric vehicles, as a low-carbon and convenient mode of transportation, are becoming increasingly popular.

[0003] Currently, electric two-wheelers on the market include a front fork and handlebars. Riders rotate the handlebars, which in turn rotates the front fork to adjust the riding trajectory. Traditionally, the front fork and handlebars are fixed coaxially, meaning that there is a connecting tube at the bottom of the handlebars that is inserted into the front fork for fixation. This results in insufficient handlebar adjustment and consequently, insufficient ergonomics. Summary of the Invention

[0004] (a) The technical problem solved by the present invention is: the insufficient adjustability of the handlebars of existing electric vehicles, resulting in insufficient human-machine comfort.

[0005] (II) Technical Solution To address the aforementioned technical problems, embodiments of the present invention provide a connector for connecting the handlebars and the stem of an electric vehicle, the connector comprising a body; The body has a first mounting hole and a second mounting hole spaced apart along its own thickness direction. The handlebar is fixed in the first mounting hole and the riser is fixed in the second mounting hole. The axis of the first mounting hole is parallel to the centerline of the body, and the axis of the second mounting hole is perpendicular to the axis of the first mounting hole.

[0006] Furthermore, the body includes a middle section, a front cover, and a rear cover; The middle part is provided with a first positioning groove and a second positioning groove spaced apart along its own thickness direction. The front cover has a third positioning groove on the side facing the middle portion, and the rear cover has a fourth positioning groove on the side facing the middle portion. The third positioning groove is corresponding to the first positioning groove, and the fourth positioning groove is corresponding to the second positioning groove. The front cover is pressed against the first positioning groove, and the rear cover is pressed against the second positioning groove. The first positioning groove and the third positioning groove together form the first mounting hole, and the second positioning groove and the fourth positioning groove together form the second mounting hole.

[0007] Furthermore, the inner wall surfaces of the first positioning groove and the third positioning groove are provided with a first internal spline, and the outer wall surface of the handlebar is provided with a first external spline. The first internal spline can engage with the first external spline to fix the handlebar in the first mounting hole. The inner wall surfaces of the second positioning groove and the fourth positioning groove are provided with a second internal spline, and the outer wall surface of the riser is provided with a second external spline. The second internal spline can engage with the second external spline to place the riser in the second mounting hole.

[0008] Furthermore, the middle part includes a first connecting ear, which has a first through hole, and a first bolt passes through the first through hole and is threadedly connected to the front cover.

[0009] Furthermore, the front cover has a first threaded hole corresponding to the first through hole, and the first bolt passes through the first through hole and the first threaded hole for threaded connection.

[0010] Furthermore, the middle part also includes a second connecting ear, which has a second through hole, and a second bolt passes through the second through hole and is threaded to the rear cover.

[0011] Furthermore, the rear cover has a second threaded hole corresponding to the second through hole, and the second bolt passes through the second through hole and the second threaded hole for threaded connection.

[0012] Furthermore, a clearance area is formed between the first connecting ear and the second connecting ear, the clearance area being used for the passage of the wire harness.

[0013] Furthermore, the length of the first external spline is greater than the length of the first internal spline, and the length of the second external spline is greater than the length of the second internal spline.

[0014] Embodiments of the present invention also provide an electric vehicle, including the aforementioned connector.

[0015] The beneficial effects of this invention are: The present invention provides a connector comprising a body, wherein the axes of a first mounting hole and a second mounting hole of the body are perpendicular to each other, and the axis of the first mounting hole is parallel to the centerline of the body, forming a non-coaxial spatial layout. This design breaks the structural constraints of traditional coaxial fixing, thereby changing the connection method between the handlebar and the seat tube. Riders can flexibly adjust parameters such as the grip height of the handlebars within a reasonable range according to actual needs, significantly improving the adjustability of the handlebars and adapting to the needs of users of different heights and riding postures (such as upright riding and leaning riding). This significantly reduces the physical load during riding and greatly improves ergonomic comfort, making it especially suitable for long-distance commuting and long-distance riding scenarios.

[0016] The present invention provides an electric vehicle, including the above-mentioned connecting parts. After the electric vehicle is assembled, it is tested for riding. The rider can adjust the height of the handlebars according to his own height and riding habits. At the same time, it can ensure that the front fork can be flexibly turned when the handlebars are turned. During the riding process, the handlebars do not wobble or jam, and the human-machine comfort reaches the best state. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the connector provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the first mounting hole of the connector provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the second mounting hole of the connector provided in an embodiment of the present invention; Figure 4 This is a schematic diagram showing the connection between the connector, the riser, and the handlebars provided in an embodiment of the present invention.

[0019] icon: 100 - Body; 101 - First mounting hole; 102 - Second mounting hole; 103 - Middle part; 104 - Front cover; 105 - Rear cover; 106 - First internal spline; 107 - Second internal spline; 108 - First connecting ear; 109 - Second connecting ear; 200 - Handlebar; 201 - Stem tube. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] Example 1 like Figures 1 to 4 As shown, the present invention provides a connector for connecting the handlebars 200 and the stem 201 of an electric vehicle. The connector includes a body 100. The body 100 has a first mounting hole 101 and a second mounting hole 102 spaced apart along its own thickness direction. The handlebar 200 is fixed in the first mounting hole 101 and the riser 201 is fixed in the second mounting hole 102. The axis of the first mounting hole 101 is parallel to the center line of the body 100, and the axis of the second mounting hole 102 is perpendicular to the axis of the first mounting hole 101.

[0024] In this embodiment, the connector includes a body 100. The axes of the first mounting hole 101 and the second mounting hole 102 of the body 100 are perpendicular to each other, and the axis of the first mounting hole 101 is parallel to the centerline of the body 100, forming a non-coaxial spatial layout. This design breaks the structural constraints of traditional coaxial fixing, changing the connection method between the handlebar 200 and the seat tube 201. Riders can flexibly adjust parameters such as the grip height of the handlebar 200 within a reasonable range according to actual needs, significantly improving the adjustability of the handlebar 200 and adapting to the needs of users of different heights and riding postures (such as upright riding and leaning riding). This significantly reduces the body load during riding and greatly improves ergonomic comfort, especially suitable for long-distance commuting and long-distance riding. The seat tube 201 refers to the upper structure of the fork.

[0025] According to one embodiment provided by the present invention, such as Figure 1and Figure 4 As shown, the main body 100 includes a middle part 103, a front cover 104 and a rear cover 105; The middle part 103 is provided with a first positioning groove and a second positioning groove spaced apart along its own thickness direction; The front cover 104 has a third positioning groove on the side facing the middle part 103, and the rear cover 105 has a fourth positioning groove on the side facing the middle part 103. The third positioning groove is set in correspondence with the first positioning groove, and the fourth positioning groove is set in correspondence with the second positioning groove. The front cover 104 is pressed onto the top of the first positioning groove, and the rear cover 105 is pressed onto the top of the second positioning groove. The first positioning groove and the third positioning groove together form the first mounting hole 101, and the second positioning groove and the fourth positioning groove together form the second mounting hole 102.

[0026] In this embodiment, the main body 100 is divided into a middle part 103, a front cover 104, and a rear cover 105. The front cover 104 and the middle part 103 form a first mounting hole 101 for mounting the handlebar 200, and the rear cover 105 and the middle part 103 form a second mounting hole 102 for mounting the riser 201. This facilitates subsequent maintenance, disassembly, and replacement. When the handlebar 200, riser 201, or connecting parts are worn or damaged, the damaged parts can be replaced, reducing maintenance costs and time costs.

[0027] According to one embodiment provided by the present invention, such as Figure 1 and Figure 4 As shown, the inner wall surfaces of the first positioning groove and the third positioning groove are provided with a first internal spline 106, and the outer wall surface of the handlebar 200 is provided with a first external spline. The first internal spline 106 can engage with the first external spline to fix the handlebar 200 in the first mounting hole 101. The inner wall surfaces of the second positioning groove and the fourth positioning groove are provided with a second internal spline 107, and the outer wall surface of the riser 201 is provided with a second external spline. The second internal spline 107 can be splined with the second external spline to place the riser 201 in the second mounting hole 102.

[0028] In this embodiment, the connection stability between the handlebars 200 and the seat tube 201 during riding is directly related to riding safety. Traditional coaxial insertion connections rely solely on the friction between the connecting tube and the fork or simple clips for fixation, which can easily lead to loosening and wobbling after long-term use, posing safety hazards. This invention ensures connection reliability through a multi-layered structural design: a spline mating structure is adopted, where the first inner spline 106 of the first mounting hole 101 (corresponding to the handlebars 200) precisely engages with the first outer spline of the handlebars 200, and the second inner spline 107 of the second mounting hole 102 (corresponding to the seat tube 201) tightly engages with the second outer spline of the seat tube 201. Compared with traditional friction fixing, spline connections have a larger contact area and more even force distribution, effectively transmitting torque and preventing relative slippage between the handlebars 200 and the seat tube 201 during rotation. This ensures that when the rider rotates the handlebars 200, power can be accurately transmitted to the seat tube 201 (fork), achieving stable adjustment of the riding trajectory.

[0029] Preferably, the first internal spline 106, the first external spline, the second internal spline 107, and the second external spline are all formed using a knurling process, and therefore will not be described in detail. Compared to interference fits, spline fits offer less assembly resistance and provide a guiding function, further simplifying the installation and positioning process of the handlebar 200 and the riser 201, and improving assembly convenience. During installation, the body 100 and the riser 201 are first fixed to prevent the body 100 from sliding during installation, which would affect assembly accuracy and efficiency.

[0030] According to one embodiment provided by the present invention, such as Figure 1 and Figure 4 As shown, the middle part 103 includes a first connecting ear 108, the first connecting ear 108 is provided with a first through hole, and a first bolt passes through the first through hole and is threadedly connected to the front cover 104.

[0031] Furthermore, the front cover 104 has a first threaded hole at the first through hole, and the first bolt passes through the first through hole and the first threaded hole for threaded connection.

[0032] Furthermore, the middle part 103 also includes a second connecting ear 109, which has a second through hole, and a second bolt passes through the second through hole and is threaded to the rear cover 105.

[0033] Furthermore, the rear cover 105 has a second threaded hole corresponding to the second through hole, and the second bolt passes through the second through hole and the second threaded hole for threaded connection.

[0034] In this embodiment, the front cover 104 and the middle part 103 are threadedly connected to the first threaded hole of the front cover 104 by a first bolt passing through the first through hole of the first connecting ear 108. The rear cover 105 and the middle part 103 are threadedly connected to the second threaded hole of the rear cover 105 by a second bolt passing through the second through hole of the second connecting ear 109. During assembly, only the bolts of the front cover 104 and the rear cover 105 need to be tightened in sequence. The operation is simple and the positioning is accurate. No complicated special equipment is required, which greatly improves the production and assembly efficiency. The bolt connection method facilitates subsequent maintenance, disassembly and replacement. When the handlebar 200, the stem 201 or the connecting parts are worn or damaged, the bolts can be quickly removed for component replacement, reducing maintenance costs and time costs.

[0035] The design employs a split structure consisting of a middle section 103, a front cover 104, and a rear cover 105. Bolts are used to secure the front cover 104 to the middle section 103 and the rear cover 105 to the middle section 103, respectively. This makes the enclosure structure of the mounting holes more robust, effectively resisting vibrations and impacts during riding, preventing deformation of the main body 100 or loosening of the mounting holes, and ensuring riding safety. Rivet connections can be used instead of bolt connections, fixing the front cover 104, rear cover 105, and middle section 103 together. This is suitable for scenarios requiring one-time assembly without subsequent disassembly, further enhancing the stability of the connection structure.

[0036] In other words, this embodiment does not strictly limit the specific dimensions (such as diameter and length) of the handlebars 200 and the stem 201. It only needs to adjust the inner diameter of the first mounting hole 101 and the second mounting hole 102, the spline module, the thickness of the body 100, and the position of the connecting ear according to the specifications of different electric vehicles. This allows it to be adapted to various types of electric vehicles, such as electric two-wheeled vehicles (such as electric bicycles and electric motorcycles) and electric tricycles, significantly improving the applicability and market competitiveness of the product.

[0037] Accordingly, electric vehicles using the aforementioned connectors can be fixed by removing the front wheel and rotating the handlebars 200 by 45° during transport, or by simply twisting the handlebars 200 to rotate them 90°, thereby reducing the overall packaging and transportation costs of the vehicle.

[0038] According to one embodiment provided by the present invention, such as Figure 1 and Figure 4 As shown, a clearance area is formed between the first connecting ear 108 and the second connecting ear 109, and the clearance area is used for the wire harness to pass through.

[0039] In this embodiment, a clearance area is formed between the first connecting ear 108 and the second connecting ear 109 of the middle part 103, specifically for the passage of the wiring harness. This avoids the problem of the wiring harness being tangled and messy at the connection between the handlebar 200 and the stem 201 in traditional electric vehicles. This design not only makes the overall structure of the electric vehicle neater and more aesthetically pleasing, but also effectively protects the wiring harness, preventing damage from friction, compression, and bending during riding, and ensuring the stable operation of the electric vehicle's electrical system. At the same time, the reasonable layout of the clearance area also provides ample space for the installation of other components (such as brake cables and gear cables), further optimizing the structural layout of the electric vehicle, improving the convenience and reliability of riding, effectively reducing wire wear, and increasing the feasibility of wiring design.

[0040] According to one embodiment provided by the present invention, such as Figure 1 and Figure 4 As shown, the length of the first external spline is greater than the length of the first internal spline 106, and the length of the second external spline is greater than the length of the second internal spline 107.

[0041] In this embodiment, the length of the first external spline is greater than the length of the first internal spline 106, and the length of the second external spline is greater than the length of the second internal spline 107. This arrangement provides a certain redundant length for the spline fit, which not only facilitates positioning and alignment during assembly, but also prevents the increase in fit clearance due to spline wear during long-term use, extends the service life of the connection structure, further improves connection stability, and prevents insufficient fixation.

[0042] Example 2 The present invention also provides an electric vehicle, including the aforementioned connector.

[0043] In this embodiment, the electric vehicle includes the aforementioned connector. After the electric vehicle is assembled, riding tests are performed. The rider adjusts the height of the handlebars 200 according to their own height and riding habits. At the same time, it can ensure that the front fork can be flexibly turned when the handlebars 200 are turned. During riding, the handlebars 200 do not wobble or jam, and the human-machine comfort reaches the best state.

[0044] The electric vehicle is an electric two-wheeled vehicle, including a frame, front fork (the seat tube 201 is the upper structure of the front fork), handlebars 200, wheels, battery, motor, control system and other conventional components. The connector is fixedly connected to the seat tube 201 of the front fork through the first mounting hole 101, and fixedly connected to the handlebars 200 through the second mounting hole 102, ensuring that the body 100 of the connector does not interfere with the front end structure of the frame. The battery, motor, control system and other components are installed on the frame in the conventional assembly method of electric two-wheeled vehicles. The wiring harness can be connected to the control system and the control components (such as throttle, brake and instrument) on the handlebars 200 through the avoidance area of ​​the connector.

[0045] The above are merely preferred embodiments of the present invention and are 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 connection piece for connecting a handlebar (200) and a riser (201) of an electric vehicle, characterized in that, The connector includes a body (100); The body (100) has a first mounting hole (101) and a second mounting hole (102) spaced apart along its own thickness direction. The handlebar (200) is fixed in the first mounting hole (101) and the riser (201) is fixed in the second mounting hole (102). The axis of the first mounting hole (101) is parallel to the centerline of the body (100), and the axis of the second mounting hole (102) is perpendicular to the axis of the first mounting hole (101).

2. The connection of claim 1, wherein The body (100) includes a middle part (103), a front cover (104) and a rear cover (105). The middle part (103) is provided with a first positioning groove and a second positioning groove spaced apart along its own thickness direction; The front cover (104) has a third positioning groove on the side facing the middle part (103), and the rear cover (105) has a fourth positioning groove on the side facing the middle part (103). The third positioning groove is corresponding to the first positioning groove, and the fourth positioning groove is corresponding to the second positioning groove. The front cover (104) is pressed against the first positioning groove, and the rear cover (105) is pressed against the second positioning groove. The first positioning groove and the third positioning groove surround to form the first mounting hole (101), and the second positioning groove and the fourth positioning groove surround to form the second mounting hole (102).

3. The connection of claim 2, wherein The inner wall surfaces of the first positioning groove and the third positioning groove are provided with a first internal spline (106), and the outer wall surface of the handlebar (200) is provided with a first external spline. The first internal spline (106) can be splined with the first external spline to fix the handlebar (200) in the first mounting hole (101). The inner wall surfaces of the second positioning groove and the fourth positioning groove are provided with a second internal spline (107), and the outer wall surface of the riser (201) is provided with a second external spline. The second internal spline (107) can be splined with the second external spline to place the riser (201) in the second mounting hole (102).

4. The connection of claim 2, wherein The middle part (103) includes a first connecting ear (108), the first connecting ear (108) is provided with a first through hole, and a first bolt passes through the first through hole and is threadedly connected to the front cover (104).

5. The connection of claim 4, wherein The front cover (104) has a first threaded hole corresponding to the first through hole, and the first bolt passes through the first through hole and is threadedly connected to the first threaded hole.

6. The connector according to claim 4, characterized in that, The middle part (103) also includes a second connecting ear (109), which has a second through hole, and a second bolt passes through the second through hole and is threaded to the rear cover (105).

7. The connector according to claim 6, characterized in that, The rear cover (105) has a second threaded hole corresponding to the second through hole, and the second bolt passes through the second through hole and the second threaded hole for threaded connection.

8. The connector according to claim 6, characterized in that, A clearance area is formed between the first connecting ear (108) and the second connecting ear (109), the clearance area being used for the passage of the wire harness.

9. The connector according to claim 3, characterized in that, The length of the first external spline is greater than the length of the first internal spline (106), and the length of the second external spline is greater than the length of the second internal spline (107).

10. An electric vehicle, characterized in that, Includes the connector as described in any one of claims 1-9.

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