Mobile electric car

Abstract

The utility model discloses a mobile electric car which comprises a car body. A hub; a suspension mechanism; the suspension mechanism comprises a vehicle body connecting plate, a hub connecting plate and an elastic vibration reduction piece. Sliding guide rails are arranged on the two side edges of the hub connecting plate, and the vehicle body connecting plate is provided with sliding connecting grooves corresponding to the sliding guide rails. The number of the elastic vibration reduction pieces is two, the elastic vibration reduction pieces are arranged on the two sides of the hub connecting plate respectively, and the extension compression direction of the elastic vibration reduction pieces is parallel to the length direction of the sliding guide rail. One end of the elastic vibration reduction piece is connected with the vehicle body connecting plate, and the other end of the elastic vibration reduction piece is connected with the hub connecting plate; the vehicle body connecting plate is provided with a first connecting part connected with the vehicle body; the hub connecting plate is provided with a second connecting part connected with the central area of the side face of the hub. One end face of the vehicle body connecting plate is connected with the side face of the vehicle body in an attached mode, and the hub connecting plate is connected with the other end face of the vehicle body connecting plate in an attached mode.

Description

Technical Field

[0001] The present application relates to the technical field of electric locomotive devices, and in particular to a mobile electric locomotive. Background Art

[0002] Mobile motor four-wheel drive vehicles, also known as wheeled robots, have many work application scenarios and are widely used in different fields, such as long-distance outdoor driving, transportation in confined space environments, express delivery and takeout, and teaching aids for science and education courses.

[0003] The components connecting the wheel hub to the vehicle body are called the suspension system. Besides providing a connection between the wheel hub and the vehicle body and damping vibrations during travel, the suspension system's structure also influences the vehicle's construction. If the suspension system takes up a lot of space, the vehicle body will also need to be smaller to avoid it. A complex suspension system will be time-consuming and complex to connect and install, and the production cost of the suspension system will be high.

[0004] In the prior art, patent applications such as CN202320232405.2 disclose a mobile chassis, and CN201811306483.2 disclose an omnidirectional mobile chassis for wheeled robots. Both employ a suspension system that uses a damping spring sleeved on a guide shaft. The bent bracket structure affects the size expansion of the wheel hub and the layout of the vehicle body space. These systems also suffer from the aforementioned drawbacks of a complex suspension system, cumbersome installation, and high manufacturing costs. Utility Model Content

[0005] The present invention mainly aims at the above problems and proposes a mobile tram, aiming to solve the technical problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides a mobile tram, comprising:

[0007] body;

[0008] wheel hub;

[0009] Suspension mechanism; the suspension mechanism includes a body connecting plate, a wheel hub connecting plate, and an elastic vibration damper; sliding guide rails are provided on both sides of the wheel hub connecting plate, and the body connecting plate is provided with sliding connecting grooves corresponding to the sliding guide rails; the elastic vibration dampers are in two groups, which are respectively provided on both sides of the wheel hub connecting plate, and the extension and compression directions of the elastic vibration dampers are parallel to the length direction of the sliding guide rails; one end of the elastic vibration damper is connected to the body connecting plate and the other end is connected to the wheel hub connecting plate; the body connecting plate is provided with a first connecting portion connected to the vehicle body; the wheel hub connecting plate is provided with a second connecting portion connected to the central area of the side surface of the wheel hub.

[0010] Furthermore, one end surface of the vehicle body connecting plate is abutted and connected to the side surface of the vehicle body, and the wheel hub connecting plate is abutted and connected to the other end surface of the vehicle body connecting plate.

[0011] Furthermore, a through groove is provided on the end surface of the vehicle body connecting plate which abuts against the side surface of the vehicle body.

[0012] Furthermore, it includes bolts and anti-loosening nuts; the first connecting part is a connecting hole for accommodating the bolt to pass through, and the body connecting plate and the vehicle body are connected by the bolts and anti-loosening nuts; the body connecting plate is provided with a recessed groove corresponding to the nut of the bolt or the anti-loosening nut.

[0013] Furthermore, the hub connecting plate is connected to the hub via bolts and anti-loosening nuts; the second connecting portion is a connecting hole for allowing the bolts to pass through, and the number of the connecting holes is at least three.

[0014] Furthermore, the three connecting holes are arranged in an isosceles triangle vertex relationship.

[0015] Furthermore, the wheel hub is a wheel with a built-in motor, and the wheel hub connecting plate is provided with a avoidance groove corresponding to the wheel hub electrical cable.

[0016] Furthermore, the vehicle body includes a vehicle frame, a bent plate covering the vehicle frame, and a reinforced profile frame connected to the outer end surface of the bent plate; a seal is provided at the connection between the reinforced profile frame and the bent plate.

[0017] Furthermore, the side of the bent plate is connected to a reinforcement frame.

[0018] Furthermore, the vehicle frame includes a storage compartment, a battery pack, a main control panel, a lighting lamp, an anti-collision frame, a reinforcement pad, and an extended connection port seat; the number of the reinforcement pads is two, which are respectively connected to the upper and lower end surfaces of the battery pack and enclose the main control panel; the reinforcement pad, battery pack, and main control panel are all arranged in the storage compartment; the lighting lamp, anti-collision frame, and extended connection port seat are arranged at the front and rear ends of the storage compartment; the vehicle body connecting plate is connected to the left and right side walls of the storage compartment; the lighting lamp, extended connection port seat, battery pack are electrically connected to the main control panel; a storage compartment is enclosed between the upper reinforcement pad and the bending plate.

[0019] Compared with the prior art, the mobile tram provided by the present invention can design the suspension mechanism as two mutually abutting ones, which are slidably connected and guided by sliding connecting grooves and sliding guide rails, so that the suspension mechanism is a flat plate structure, which is very small and thin; the elastic vibration damping member provides an elastically compressed and reset vibration damping member, which avoids the use of a bracket with a complex bending structure and a structure inconvenient to assemble and connect with a cylindrical spring sleeve guide rod in the suspension system of the prior art, thereby reducing the manufacturing cost of the suspension system, and the body connecting plate and the wheel hub connecting plate of the plate body are both arranged on the side of the body, which does not require the body to be additionally provided with a slot to accommodate the suspension mechanism, so the volume of the body is optimized, and a larger space can be provided therein, thereby increasing the space utilization rate of the body, for example, a larger capacity battery pack can be placed to improve the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a mobile tram for this application.

[0021] Figure 2 This is a structural schematic diagram of a mobile tram from another perspective of this application.

[0022] Figure 3 This is a schematic diagram of the exploded structure of a mobile tram in this application.

[0023] Figure 4 This is a schematic diagram of the suspension mechanism structure of a mobile tram in this application.

[0024] Figure 5 This is a schematic diagram of the decomposition structure of the suspension mechanism of a mobile tram in this application.

[0025] Reference numerals shown in the figure: 1. Vehicle body; 110. Vehicle frame; 111. Storage compartment; 112. Battery pack; 113. Main control panel; 114. Lighting lamp; 115. Anti-collision frame; 116. Reinforced pad; 117. Extended connection port seat; 120. Bending plate; 130. Reinforced profile frame; 2. Wheel hub; 3. Suspension mechanism; 310. Vehicle body connecting plate; 311. Sliding connecting groove; 312. First connecting part; 313. Through groove; 314. Sink; 320. Wheel hub connecting plate; 321. Sliding guide rail; 322. Second connecting part; 323. Avoidance groove; 330. Elastic vibration damping member; 4. Reinforced frame. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It is understood that the drawings are only provided for reference and illustration purposes and are not used to limit the present invention. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0027] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in this document in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Please refer to Figure 1 - Figure 5 , this embodiment provides a mobile tram, comprising:

[0030] Car body 1;

[0031] Hub 2;

[0032] Suspension mechanism 3; the suspension mechanism 3 includes a body connecting plate 310, a wheel hub connecting plate 320, and an elastic vibration damper 330; sliding guide rails 321 are provided on both sides of the wheel hub connecting plate 320, and the body connecting plate 310 is provided with a sliding connection groove 311 corresponding to the sliding guide rails 321; the elastic vibration dampers 330 are in two groups, which are respectively provided on both sides of the wheel hub connecting plate 320, and the extension and compression directions of the elastic vibration dampers 330 are parallel to the length direction of the sliding guide rails 321; one end of the elastic vibration damper 330 is connected to the body connecting plate 310 and the other end is connected to the wheel hub connecting plate 320; the body connecting plate 310 is provided with a first connecting portion 312 connected to the vehicle body 1; the wheel hub connecting plate 320 is provided with a second connecting portion 322 connected to the central area of the side of the wheel hub 2.

[0033] By designing the suspension mechanism 3 as two mutually abutting, and slidingly connecting and guiding through the sliding connection groove 311 and the sliding guide rail 321, the suspension mechanism 3 of the flat plate structure is very small and thin; the elastic vibration damper 330 provides a vibration damper for elastic compression and reset, avoiding the use of a bracket with a complex bending structure and a structure inconvenient to assemble and connect with a cylindrical spring sleeve guide rod in the suspension system in the prior art, thereby reducing the manufacturing cost of the suspension system, and the body connecting plate 310 and the wheel hub connecting plate 320 of the plate body are both arranged on the side of the vehicle body 1, which does not require the vehicle body 1 to have an additional slot to accommodate the suspension mechanism 3. Therefore, the volume of the vehicle body 1 is optimized, and a larger space can be provided therein to increase the space utilization rate of the vehicle body, for example, a larger capacity battery pack can be installed to improve battery life.

[0034] In some embodiments, the elastic vibration damper 330 is a cylindrical spring.

[0035] Please refer to Figure 2 - Figure 5 One end surface of the vehicle body connecting plate 310 is abutted and connected to the side surface of the vehicle body 1 , and the wheel hub connecting plate 320 is abutted and connected to the other end surface of the vehicle body connecting plate 310 .

[0036] This structure can limit the volume of the suspension mechanism 3 and reduce space occupation. Preferably, when observing the suspension mechanism 3 from a top view, the outer contour of the elastic vibration damper 330 does not protrude or is flush with the body connecting plate 310 and the hub connecting plate 320.

[0037] Please refer to Figure 5 The end surface of the vehicle body connecting plate 310 that is in contact with the side surface of the vehicle body 1 is provided with a through groove 313 .

[0038] The through slot 313 facilitates the removal of the vehicle body connecting plate 310 .

[0039] Please refer to Figure 4 and Figure 5 , including bolts and anti-loosening nuts (not shown); the first connecting portion 312 is a connecting hole for the bolt to pass through, and the body connecting plate 310 and the vehicle body 1 are connected by the bolt and anti-loosening nut; the body connecting plate 310 is provided with a recessed groove 314 corresponding to the nut of the bolt or the anti-loosening nut.

[0040] The recessed groove 314 is provided to receive the nut or the anti-loosening nut of the bolt, so as to prevent the wheel hub connecting plate 320 from sliding relative to the vehicle body connecting plate 310 and causing interference by abutting against the nut or the anti-loosening nut.

[0041] Please refer to Figure 4 and Figure 5 The hub connecting plate 320 is connected to the hub 2 by bolts and anti-loosening nuts; the second connecting portion 322 is a connecting hole for the bolts to pass through, and the number of the connecting holes is at least three.

[0042] Preferably, the three connecting holes are arranged in an isosceles triangle vertex relationship.

[0043] Through this connection method, the hub connecting plate 320 is stably connected to the hub 2.

[0044] Please refer to Figure 4 and Figure 5 The wheel hub 2 is a wheel with a built-in motor, and the wheel hub connecting plate 320 is provided with a avoidance groove 323 corresponding to the electrical wiring of the wheel hub 2.

[0045] Choosing this type of wheel can make the movement of the mobile tram more flexible.

[0046] Please refer to Figure 1 - Figure 3 The vehicle body 1 includes a vehicle frame 110, a bent plate 120 covering the vehicle frame 110, and a reinforcing profile frame 130 connected to the outer end surface of the bent plate 120; a seal (not shown) is provided at the connection between the reinforcing profile frame 130 and the bent plate 120.

[0047] In some embodiments, the seal is a sealing ring. The reinforced profile frame 130 is connected to the bent plate 120 via screws. The sealing ring prevents liquid from entering the vehicle body 1 through the gap at the connection, thereby achieving a waterproof effect and preventing rain and splashes. The bent plate 120 is the outer shell of the vehicle body 1. The reinforced profile frame 130 is located on the upper end surface of the bent plate 120 to enhance the structural strength and rigidity of the bent plate 120, avoiding the use of a thick plate structure for the bent plate 120, which would increase the weight of the vehicle body 1. The reinforced profile frame 130 is preferably an aluminum alloy profile.

[0048] Please refer to Figure 1 - Figure 3The side of the bending plate 120 is connected to the reinforcement frame 4.

[0049] The reinforcing frame 4 is used to enhance the structural strength of the outer edge of the bent plate 120. The reinforcing frame 4 is provided corresponding to the wheel hub 2, which can enhance the authenticity and aesthetics of the mobile electric vehicle compared to a jeep in life.

[0050] Please refer to Figure 1 - Figure 3 The frame 110 includes a storage compartment 111, a battery pack 112, a main control board 113, a lighting lamp 114, an anti-collision frame 115, a reinforcement pad 116, and an expansion connection port seat 117; the storage compartment 111 can be processed by welding technology. The expansion port holder 117 can be connected to peripheral devices, such as a camera or single-board computer. Two reinforcing pads 116 are connected to the upper and lower ends of the battery pack 112, respectively, and surround the main control board 113, increasing the structural strength of the battery pack 112 and the main control board 113. The reinforcing pads 116, the battery pack 112, and the main control board 113 are all located within the storage compartment 111. The lighting 114, the anti-collision frame 115, and the expansion port holder 117 are located at the front and rear ends of the storage compartment 111. The vehicle body connecting plate 310 is connected to the left and right side walls of the storage compartment 111. The lighting 114, the expansion port holder 117, the battery pack 112, and the main control board 113 are electrically connected. A storage compartment is enclosed between the upper reinforcing pad 116 and the bent plate 120. The storage compartment allows the vehicle to transport objects or install additional battery packs or cameras.

[0051] In the description and claims of this application, the words "include / comprise" and the words "have / include" and their variations are used to specify the existence of stated features, values, steps or components, but do not exclude the existence or addition of one or more other features, values, steps, components or their combinations.

[0052] Some features of the present invention are described in separate embodiments for clarity of explanation, however, these features may also be described in combination in a single embodiment. Conversely, some features of the present invention are described in a single embodiment for brevity, however, these features may also be described in different embodiments individually or in any suitable combination.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile tram, characterized in that: include: vehicle body; wheel hub; Suspension mechanism; the suspension mechanism includes a body connecting plate, a wheel hub connecting plate, and an elastic vibration damper; sliding guide rails are provided on both sides of the wheel hub connecting plate, and the body connecting plate is provided with sliding connecting grooves corresponding to the sliding guide rails; the elastic vibration dampers are in two groups, which are respectively provided on both sides of the wheel hub connecting plate, and the extension and compression directions of the elastic vibration dampers are parallel to the length direction of the sliding guide rails; one end of the elastic vibration damper is connected to the body connecting plate and the other end is connected to the wheel hub connecting plate; the body connecting plate is provided with a first connecting portion connected to the vehicle body; the wheel hub connecting plate is provided with a second connecting portion connected to the central area of the side surface of the wheel hub.

2. A mobile electric vehicle according to claim 1, characterized in that: One end surface of the vehicle body connecting plate is abutted and connected to the side surface of the vehicle body, and the wheel hub connecting plate is abutted and connected to the other end surface of the vehicle body connecting plate.

3. A mobile electric vehicle according to claim 1, characterized in that: The end surface of the vehicle body connecting plate that abuts against the side surface of the vehicle body is provided with a through groove.

4. The mobile electric vehicle according to claim 1, characterized in that: It includes bolts and anti-loosening nuts; the first connecting part is a connecting hole for the bolt to pass through, and the body connecting plate and the vehicle body are connected by the bolts and anti-loosening nuts; the body connecting plate is provided with a recessed groove corresponding to the nut of the bolt or the anti-loosening nut.

5. The mobile electric vehicle according to claim 1, characterized in that: The hub connecting plate is connected to the hub via bolts and anti-loosening nuts; the second connecting portion is a connecting hole for the bolts to pass through, and the number of the connecting holes is at least three.

6. A mobile electric vehicle according to claim 5, characterized in that: The three connecting holes are arranged in an isosceles triangle vertex relationship.

7. The mobile electric vehicle according to claim 1, characterized in that: The wheel hub is a wheel with a built-in motor, and the wheel hub connecting plate is provided with a avoidance groove corresponding to the wheel hub electric cable.

8. The mobile electric vehicle according to claim 1, characterized in that: The vehicle body comprises a vehicle frame, a bent plate covering the vehicle frame, and a reinforced profile frame connected to the outer end surface of the bent plate; a sealing member is provided at the connection between the reinforced profile frame and the bent plate.

9. The mobile electric vehicle according to claim 8, characterized in that: The side of the bent plate is connected with a reinforcement frame.

10. The mobile electric vehicle according to claim 8, characterized in that: The frame includes a storage compartment, a battery pack, a main control panel, a lighting lamp, an anti-collision frame, a reinforcement pad, and an extended connection port seat; the number of the reinforcement pads is two, which are respectively connected to the upper and lower end surfaces of the battery pack and enclose the main control panel; the reinforcement pads, battery pack, and main control panel are all arranged in the storage compartment; the lighting lamp, anti-collision frame, and extended connection port seat are arranged at the front and rear ends of the storage compartment; the vehicle body connecting plate is connected to the left and right side walls of the storage compartment; the lighting lamp, extended connection port seat, battery pack are electrically connected to the main control panel; a storage compartment is enclosed between the upper reinforcement pad and the bending plate.

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