Motorcycle

Abstract

The application provides a motorcycle. The motorcycle comprises a frame, a first assembly frame and first electronic devices. The frame comprises a head pipe, a front frame and a middle frame. The head pipe, the front frame and the middle frame are arranged in sequence from front to back. The front end of the front frame is fixedly connected with the head pipe. The rear end of the front frame is fixedly connected with the middle frame. The first assembly frame is detachably connected with the front frame, and the first assembly frame is closer to the head pipe than the middle frame. The first assembly frame comprises a fixed support. The fixed support comprises a mounting portion. The first electronic devices are assembled in the mounting portion. The motorcycle further comprises a second assembly frame and second electronic devices. The second assembly frame is connected with the first assembly frame. The second assembly frame comprises an assembly portion. The second electronic devices are assembled in the assembly portion. In the width direction of the frame, the assembly portion is below the mounting portion. The motorcycle provided by the application can improve the space utilization of the whole vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a motorcycle. Background Technology

[0002] A motorcycle frame typically consists of the head tube, front frame, and mid-frame, arranged sequentially from front to back. The middle of the front frame forms a mounting space where the motorcycle's fuel tank is primarily located. The front frame also serves as a mounting platform for numerous electrical components, such as the IMU (Inertial Measurement Unit) and the ABS controller (Anti-lock Braking System Controller). In other words, many electrical components are also installed within this mounting space. However, currently, the space utilization rate for these electrical components is relatively low. Utility Model Content

[0003] In view of this, this application provides a motorcycle in which the electrical components have a high space utilization rate in the installation space.

[0004] One embodiment of this application provides a motorcycle. The motorcycle includes a frame, a first mounting bracket, and a first electronic device. The frame includes a head tube, a front frame, and a middle frame. The head tube, front frame, and middle frame are arranged sequentially from front to back. The front end of the front frame is fixedly connected to the head tube. The rear end of the front frame is fixedly connected to the middle frame. The first mounting bracket is detachably connected to the front frame and is closer to the head tube than the middle frame. The first mounting bracket includes a mounting bracket. The mounting bracket includes a mounting portion. The first electronic device is mounted on the mounting portion. The motorcycle also includes a second mounting bracket and a second electronic device. The second mounting bracket is connected to the first mounting bracket. The second mounting bracket includes a mounting portion. The second electronic device is mounted on the mounting portion. Viewed along the width direction of the frame, the mounting portion is located below the mounting portion.

[0005] In some embodiments of this application, the first electronic device is an ABS controller and the second electronic device is an IMU sensor.

[0006] In some embodiments of this application, the second assembly frame further includes a first connecting arm and a second connecting arm. Both the first connecting arm and the second connecting arm are connected to the assembly portion. Both the first connecting arm and the second connecting arm are detachably connected to the first assembly frame.

[0007] In some embodiments of this application, the first connecting arm includes a first connecting segment and a second connecting segment that are bent into place. The first connecting segment is connected to the assembly part, and the first connecting segment and the assembly part are bent at the connection point. The second connecting segment is connected to the first assembly frame.

[0008] In some embodiments of this application, the fixing bracket further includes a mating connecting arm. The mating connecting arm includes a first mating section and a second mating section that are bent into place. The first mating section is connected to the mounting portion, and the first mating section and the mounting portion are bent at the connection point. The second mating section and the second connecting arm are detachably connected.

[0009] In some embodiments of this application, the first connecting segment is bent towards the side of the assembly portion away from the first assembly frame, from one end of the connected assembly portion to one end of the connected second connecting segment. Furthermore, the second connecting segment and the assembly portion are substantially parallel.

[0010] In some embodiments of this application, the first connecting arm is detachably connected to the first assembly frame via a connection point, and the second connecting arm is detachably connected to the first assembly frame via multiple connection points.

[0011] In some embodiments of this application, the assembly portion has an assembly surface for assembling a second electronic device, and the end of the second connecting arm away from the assembly portion is bent toward the first assembly frame in a direction perpendicular to the assembly surface of the assembly portion. The second assembly frame further includes a first fastener and a second fastener. The first fastener passes through and connects the first connecting arm and the first assembly frame, and the second fastener passes through and connects the second connecting arm and the first assembly frame. Furthermore, the direction of insertion of the first fastener and the direction of insertion of the second fastener are substantially perpendicular.

[0012] In some embodiments of this application, the mounting bracket further includes a first fixing arm and a second fixing arm. Both the first and second fixing arms are connected to the mounting portion and are also connected to the front frame. A first electronic device is also connected to the first fixing arm. The first mounting bracket further includes an adapter bracket. The adapter bracket includes a first adapter plate and a second adapter plate that are bent into place. The first adapter plate is connected to the side of the first fixing arm opposite to the first electronic device and extends away from the first electronic device. The end of the second adapter plate away from the first adapter plate is bent towards the second mounting bracket.

[0013] In some embodiments of this application, the front frame includes two layers of support tubes arranged vertically. Viewed along the width direction of the frame, the first mounting bracket, the first electronic component, the second mounting bracket, and the second electronic component are all located between the two layers of support tubes of the front frame.

[0014] In this application, the second mounting bracket can be fixed to the front frame along with the first mounting bracket, so that the second electronic device mounted on the second mounting bracket can be fixed relative to the frame. This eliminates the need for a separate connecting structure on the frame to fix the second mounting bracket, reducing the need for frame modifications and facilitating the mounting of the second electronic device on different vehicle models. Furthermore, the space near the head tube of the front frame where the first electronic device is located is relatively small, making it inconvenient to mount large structures. The mounting section is located below the mounting section, allowing the second electronic device to be mounted below the first electronic device, effectively utilizing the space near the head tube of the front frame and thus improving the overall vehicle space utilization. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation on the scope.

[0016] Figure 1 This is a schematic diagram of the structure of a motorcycle provided in one embodiment of this application; Figure 2 A schematic diagram illustrating the assembly of a portion of the vehicle frame, a first mounting frame, a second mounting frame, and a buffer component according to an embodiment of this application; Figure 3 A schematic diagram illustrating the structure of a partial vehicle frame, a first mounting frame, a first electronic component, a second mounting frame, a second electronic component, and a buffer component in accordance with an embodiment of this application; Figure 4 for Figure 3 A structural diagram of each component from another perspective; Figure 5 for Figure 4 Explosion diagrams of various structures in the middle; Figure 6 This is a schematic diagram of the structure of the first assembly frame, the second assembly frame, and the buffer provided in an embodiment of this application. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0019] The term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0020] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0021] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] See Figure 1 One embodiment of this application provides a motorcycle 100. In some embodiments, the motorcycle 100 includes a frame 10. To clearly illustrate the technical solution of this application, terms such as Figures 1 to 5 The directions shown are front, rear, left, right, top, and bottom. In this application, the length direction of the motorcycle frame 10 refers to... Figures 1 to 5 In the fore-and-aft direction, the width direction of the frame 10 of the motorcycle 100 refers to... Figures 1 to 5 In the left-right direction, the height direction of the frame 10 of the motorcycle 100 refers to... Figures 1 to 5 The directions shown are up and down. The front, back, left, right, up, and down directions in each diagram are based on the motorcycle 100 traveling on a level road, not on a sloping road.

[0023] See Figure 1 and Figure 2 In some embodiments, the frame 10 includes a head tube 11, a front frame 12, and a middle frame 13. The head tube 11, front frame 12, and middle frame 13 are arranged sequentially from front to back. The front end of the front frame 12 is fixedly connected to the head tube 11. The rear end of the front frame 12 is fixedly connected to the middle frame 13. The head tube 11, front frame 12, and middle frame 13 form a frame structure, and the area enclosed by them is typically used to house the engine 70 and / or fuel tank 80 of the motorcycle 100.

[0024] See Figures 2 to 4 In some embodiments, the front frame 12 is configured to consist of support tubes distributed along the width direction of the frame 10. Optionally, the support tubes of the front frame 12 distributed along the width direction of the frame 10 gradually tighten and converge from back to front, and are finally fixedly connected to the head tube 11, that is, the width of the front frame 12 distributed along the width direction of the frame 10 gradually decreases.

[0025] See Figure 3 In some embodiments, the front frame 12 includes upper and lower support tubes arranged along the height direction of the frame 10 to give the frame 10 sufficient structural strength.

[0026] See Figures 2 to 4In some embodiments, the frame 10 further includes a support tube 14. The support tube 14 is connected between the upper and lower support tubes of the front frame 12 to improve the structural strength of the front frame 12.

[0027] See Figure 2 and Figure 3 In some embodiments, the motorcycle 100 further includes a first mounting bracket 20 and a first electronic device 30. The first mounting bracket 20 is detachably connected to the front frame 12 and is located on the front frame 12 near the head tube 11. The first mounting bracket 20 includes a fixing bracket 21. The fixing bracket 21 includes a mounting portion 211. The first electronic device 30 is mounted on the mounting portion 211. The first mounting bracket 20 is located between the two side bracket tubes of the front frame 12 distributed along the width direction of the frame 10; the location of the first mounting bracket 20 can be understood as being located along the length direction of the frame 10, in the area in front of the engine 70 and / or the fuel tank 80 and behind the head tube 11. Exemplarily, the first electronic device 30 is an ABS (Antilock Brake System) controller.

[0028] In some embodiments, the first mounting bracket 20 is detachably connected to the front frame 12 to facilitate the assembly of the first electronic device 30. In other embodiments, the first mounting bracket 20 is fixedly connected to the front frame 12 to improve the stability of the connection of the first mounting bracket 20.

[0029] See Figure 3 and Figure 4 It is understood that in some embodiments, the first mounting bracket 20 is connected to the support tube 14, and indirectly connected to the front frame 12 through the support tube 14. In other embodiments, the first mounting bracket 20 may be directly connected to the front frame 12.

[0030] See Figure 2 and Figure 3 In some embodiments, the motorcycle 100 further includes a second mounting bracket 40 and a second electronic device 50. The second mounting bracket 40 is connected to the first mounting bracket 20. The second mounting bracket 40 includes a mounting portion 41. The second electronic device 50 is mounted on the mounting portion 41, which has a mounting surface for mounting the second electronic device 50. Viewed along the width direction of the frame 10, the mounting portion 41 is located below the mounting portion 211. The second mounting bracket 40 is located between the two side support tubes of the front frame 12 distributed along the width direction of the frame 10. Exemplarily, the second electronic device 50 is an IMU (Inertial Measurement Unit) sensor.

[0031] The second mounting bracket 40 can be fixed to the front frame 12 along with the first mounting bracket 20, so that the second electronic device 50 mounted on the second mounting bracket 40 can be fixed relative to the frame 10. This eliminates the need for a separate connecting structure on the frame 10 to fix the second mounting bracket 40, reducing the need for modifications to the frame 10 and facilitating the mounting of the second electronic device 50 on different vehicle models. Furthermore, the space near the head tube 11 on the front frame 12 where the first electronic device 30 is located is relatively small, making it inconvenient to mount large structures. The mounting part 41, located below the mounting part 211, allows the second electronic device 50 to be mounted below the first electronic device 30, effectively utilizing the space near the head tube 11 on the front frame 12 and improving the overall vehicle space utilization.

[0032] See Figure 3 In some embodiments, viewed along the width direction of the frame 10, the first mounting bracket 20, the first electronic device 30, the second mounting bracket 40, and the second electronic device 50 are all located between the upper and lower support tubes of the front frame 12. Viewed along the width direction of the frame 10, the first mounting bracket 20, the first electronic device 30, the second mounting bracket 40, and the second electronic device 50 do not protrude beyond the frame structure of the front frame 12 to avoid affecting the layout of other structures of the vehicle.

[0033] See Figure 4 and Figure 5 In some embodiments, the fixing bracket 21 further includes a first fixing arm 212 and a second fixing arm 213. Both the first fixing arm 212 and the second fixing arm 213 are connected to the mounting portion 211 and to the front frame 12, so that the fixing bracket 21 is stably connected to the front frame 12. The first fixing arm 212 and the second fixing arm 213 are located on opposite sides of the mounting portion 211, so that the first fixing arm 212 and the second fixing arm 213 can be connected to the two side support tubes of the front frame 12 distributed along the width direction of the frame 10, thereby making reasonable use of the space in the width direction of the frame 10 and helping to avoid the center of gravity of the mounting portion 211 on which the first electronic device 30 is mounted shifting, thus stabilizing the position of the first electronic device 30 and the mounting portion 211.

[0034] The first electronic device 30 is also mounted on the first fixing arm 212. The first fixing arm 212 and the mounting part 211 respectively fix different sides of the first electronic device 30, improving the stability of the assembly and fixation of the first electronic device 30.

[0035] In some embodiments, the first assembly frame 20 further includes an adapter bracket 22. The adapter bracket 22 includes a first adapter plate 221 and a second adapter plate 222 that are bent into place. The first adapter plate 221 is connected to the side of the first fixing arm 212 opposite to the first electronic device 30 and extends in a direction away from the first electronic device 30. The end of the second adapter plate 222 away from the first adapter plate 221 is bent toward the first assembly frame 20.

[0036] By setting up the adapter bracket 22, the space next to the fixed bracket 21 can be used to arrange the structure for connecting the second assembly frame 40, thereby facilitating the placement of the second assembly frame 40 below the first assembly frame 20. The first fixed arm 212 connects to both the front frame 12 and the first electronic device 30. Therefore, the first fixed arm 212 has a relatively large structure, which facilitates the fixed connection of the first adapter plate 221 and improves the stability of the fixed connection of the first adapter plate 221.

[0037] See Figure 5 It is understood that in some embodiments, the first adapter plate 221 of the adapter bracket 22 is welded to the first fixing arm 212 of the fixing bracket 21.

[0038] See Figure 4 and Figure 5 In some embodiments, the second mounting bracket 40 and the first mounting bracket 20 are detachably connected to facilitate adjusting the installation sequence of the second electronic device 50 and the second mounting bracket 40, reducing installation difficulty and allowing for selective installation of the second electronic device 50 as needed. In other embodiments, the second mounting bracket 40 can be fixedly connected to the first mounting bracket 20, allowing the second mounting bracket 40 to be connected to the front frame 12 along with the first mounting bracket 20, reducing assembly steps.

[0039] Understandably, in some embodiments, the motorcycle 100 also includes a buffer 60. The buffer 60 is disposed between the first mounting bracket 20 and the second mounting bracket 40 to reduce the impact of engine 70 vibration or overall vehicle riding vibration on the second electronic device 50. Exemplarily, the buffer 60 is a rubber ring.

[0040] See Figures 4 to 6In some embodiments, the second assembly frame 40 further includes a first connecting arm 42 and a second connecting arm 43. Both the first connecting arm 42 and the second connecting arm 43 are connected to the assembly portion 41. The first connecting arm 42 and the second connecting arm 43 are detachably connected to the first assembly frame 20, which helps improve the stability of the connection between the second assembly frame 40 and the first assembly frame 20. Since the first connecting arm 42 and the second connecting arm 43 are located on opposite sides of the assembly portion 41, connecting structures are provided on opposite sides of the second assembly frame 40, which helps prevent the center of gravity of the assembly portion 41, on which the second electronic device 50 is assembled, from shifting, thus stabilizing the position of the second electronic device 50 and the assembly portion 41.

[0041] Understandably, in some embodiments, the first mounting frame 20 is connected to the support tubes on the left and right sides of the front frame 12 along the width direction of the frame 10, and the first connecting arm 42 and the second connecting arm 43 are located on the left and right sides of the mounting part 41 along the width direction of the frame 10, so that the second mounting frame 40 can make reasonable use of the space in the width direction of the frame 10, so as to facilitate observation along the height direction of the frame 10. The second mounting frame 40 and the second electronic device 50 can be within the range of the first mounting frame 20 and the first electronic device 30, which helps to avoid affecting the layout of other structures of the vehicle.

[0042] In some embodiments, the second mounting bracket 40 further includes a first fastener 44 and a second fastener 45. The first fastener 44 passes through and connects the first connecting arm 42 and the first mounting bracket 20, and the second fastener 45 passes through and connects the second connecting arm 43 and the first mounting bracket 20, facilitating a detachable connection between the second mounting bracket 40 and the first mounting bracket 20. For example, the first fastener 44 and the second fastener 45 can be bolts.

[0043] It is understood that in some embodiments, the first fastener 44 passes through the buffer 60 and connects to the first connecting arm 42 and the first assembly frame 20, and the second fastener 45 passes through the buffer 60 and connects to the second connecting arm 43 and the first assembly frame 20.

[0044] See Figure 5 and Figure 6 In some embodiments, the first connecting arm 42 has a first connecting segment 421 and a second connecting segment 422 that are bent into place. The first connecting segment 421 is connected to the assembly part 41, and the first connecting segment 421 and the assembly part 41 are bent at the connection point. The first connecting arm 42 and the assembly part 41 can be bent and deformed, and the first connecting segment 421 and the second connecting segment 422 can also be bent and deformed, facilitating adjustment of the angle of the connection structure between the first connecting arm 42 and the first assembly frame 20, thereby adjusting the angle of the assembly part 41, so that the second electronic device 50 can be assembled to the required accurate installation angle.

[0045] In some embodiments, the fixing bracket 21 further includes a mating connecting arm 214. The mating connecting arm 214 has a first mating section 2141 and a second mating section 2142 that are bent into a mating configuration. The first mating section 2141 is connected to the mounting portion 211, and the first mating section 2141 and the mounting portion 211 are bent at the connection point. The second mating section 2142 and the second connecting section 422 are detachably connected. The mating connecting arm 214 and the mounting portion 211 are both bendable, and the first mating section 2141 and the second mating section 2142 are also bendable, facilitating adjustment of the angle of the connection structure between the mating connecting arm 214 and the mounting bracket 40, thereby adjusting the angle of the mounting portion 41, so that the second electronic device 50 can be assembled to the required accurate mounting angle. A first fastener 44 passes through and connects the second connecting section 422 and the second mating section 2142.

[0046] See Figure 3 and Figure 6 It is understood that, in some embodiments, when viewed along the height direction of the frame 10, a portion of the structure of the first electronic device 30 is located on the front side of the mounting portion 211. The connecting arm 214 is located on the front side of the mounting portion 211, and the first connecting arm 42 extends along the width direction of the frame 10, so that the mounting portion 41 is located on one side of the connecting arm 214 along the width direction of the frame 10. This makes reasonable use of the space on the front side of the mounting portion 211, allowing the second mounting bracket 40 and the second electronic device 50 to be within the range of the first mounting bracket 20 and the first electronic device 30 when viewed along the height direction of the frame 10, thus avoiding interference with the layout of other structures of the vehicle.

[0047] See Figure 5 and Figure 6 In some embodiments, the second connecting segment 422 and the assembly portion 41 are substantially parallel, such that the direction in which the second fastener 44 fixes and supports the second connecting segment 422 is substantially parallel to the direction in which the assembly portion 41 fixes and supports the second electronic device 50, thereby improving the stability of fixing the second electronic device 50 and enhancing the vibration resistance of the second electronic device 50. The first connecting segment 421 is bent towards the side of the assembly portion 41 away from the second electronic device 50 from one end of the connected assembly portion 41 to one end of the connected second connecting segment 422, so that after the second electronic device 50 is assembled to the assembly portion 41, the second connecting segment 421 can be spaced apart from the second electronic device 50 to leave space for the first fastener 42.

[0048] In some embodiments, the first connecting arm 42 is detachably connected to the first assembly frame 20 via a single connection point, and the second connecting arm 43 is detachably connected to the first assembly frame 20 via multiple connection points. The single connection point of the first connecting arm 42 ensures that the connection between the first connecting arm 42 and the first assembly frame 20 remains stable even after adjustments to the structural angle at their connection. Conversely, the multiple connection points of the second connecting arm 43 enhance connection stability and provide sufficient structural strength for the assembly part 41, facilitating adjustments to the structural angle at the connection between the first connecting arm 42 and the first assembly frame 20.

[0049] For example, one connection point of the first connecting arm 42 may be provided with a first fastener 44, and multiple connection points of the second connecting arm 43 may be provided with multiple second fasteners 45.

[0050] In some embodiments, the end of the second connecting arm 43 away from the assembly portion 41 is bent toward the first mounting frame 20 in a direction perpendicular to the assembly surface of the assembly portion 41, so as to place the assembly portion 41 below the mounting portion 211. Furthermore, since the insertion direction of the first fastener 44 is substantially perpendicular to the insertion direction of the second fastener 45, the second mounting frame 40 can be constrained in different directions, improving the stability of the connection and fixation of the second mounting frame 40.

[0051] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A motorcycle, comprising: The frame includes a head tube, a front frame, and a middle frame, which are arranged sequentially from front to back. The front end of the front frame is fixedly connected to the head tube, and the rear end of the front frame is fixedly connected to the middle frame. A first mounting bracket, detachably connected to the front frame, is closer to the head tube than the mid-frame. The first mounting bracket includes a mounting bracket with a mounting portion. A first electronic device is assembled in the mounting portion; The motorcycle is characterized in that it further includes a second mounting frame and a second electronic device, the second mounting frame is connected to the first mounting frame, the second mounting frame includes a mounting part, the second electronic device is mounted on the mounting part, and when viewed along the width direction of the frame, the mounting part is located below the mounting part.

2. The motorcycle according to claim 1, characterized in that, The first electronic device is an ABS controller, and the second electronic device is an IMU sensor.

3. The motorcycle according to claim 1, characterized in that, The second assembly frame further includes a first connecting arm and a second connecting arm, both of which are connected to the assembly part and are detachably connected to the first assembly frame.

4. The motorcycle according to claim 3, characterized in that, The first connecting arm includes a first connecting segment and a second connecting segment that are bent into place. The first connecting segment is connected to the assembly part, and the first connecting segment and the assembly part are bent at the connection point. The second connecting segment is connected to the first assembly frame.

5. The motorcycle according to claim 4, characterized in that, The fixed bracket further includes a mating connecting arm, which includes a first mating section and a second mating section that are bent into each other. The first mating section is connected to the mounting part, and the first mating section and the mounting part are bent at the connection point. The second mating section and the second connecting section are detachably connected.

6. The motorcycle according to claim 5, characterized in that, The first connecting segment is bent towards the side of the assembly part away from the first assembly frame from one end connected to the assembly part to one end connected to the second connecting segment, and the second connecting segment and the assembly part are substantially parallel.

7. The motorcycle according to claim 5, characterized in that, The first connecting arm is detachably connected to the first assembly frame via a connection point, and the second connecting arm is detachably connected to the first assembly frame via multiple connection points.

8. The motorcycle according to claim 3 or 6, characterized in that, The assembly part has an assembly surface for assembling the second electronic device. The end of the second connecting arm away from the assembly part is bent toward the first assembly frame in a direction perpendicular to the assembly surface of the assembly part. The second assembly frame also includes a first fastener and a second fastener. The first fastener passes through and connects the first connecting arm and the first assembly frame. The second fastener passes through and connects the second connecting arm and the first assembly frame. The passing direction of the first fastener and the passing direction of the second fastener are substantially perpendicular.

9. The motorcycle according to claim 1, characterized in that, The fixed bracket further includes a first fixed arm and a second fixed arm, both of which are connected to the mounting portion and to the front frame. The first electronic device is also connected to the first fixed arm. The first assembly frame further includes a transition bracket, which includes a first transition plate and a second transition plate that are bent together. The first transition plate is connected to the side of the first fixed arm away from the first electronic device and extends away from the first electronic device. The end of the second transition plate away from the first transition plate is bent toward the second assembly frame.

10. The motorcycle according to claim 1, characterized in that, The front frame includes two layers of support tubes arranged vertically. When viewed along the width of the frame, the first mounting bracket, the first electronic device, the second mounting bracket, and the second electronic device are all located between the two layers of support tubes of the front frame.

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