Brake pedal device and vehicle

Abstract

The utility model discloses a brake pedal device and a vehicle, which belong to the technical field of vehicles and comprise a front wall baffle, a brake control unit, a pedal assembly, a gasket, a brake connecting structure and a front wall liner. The pedal assembly and the brake control unit are arranged on the two sides of the front wall baffle respectively, the brake push rod penetrates through the push rod hole to be in transmission hinge with the pedal arm, and the brake push rod can be driven to move when the pedal arm is treaded to achieve braking. The distance between the installation end plate of the pedal support and the front wall baffle is increased through the gasket, so that the pedal support and the front wall baffle can be stably connected, the front wall liner can stretch into the position between the pedal support and the front wall baffle, and the NVH characteristic of the brake pedal device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a brake pedal device and a vehicle. Background Art

[0002] The brake pedal is one of the five major control parts for driving a car and is an important component for transmitting braking force. The brake pedal is arranged in the passenger compartment and is used for deceleration and parking. It is used very frequently. NVH refers to noise, vibration and harshness. The study of NVH characteristics is not only applicable to the development process of the entire new car products, but also to the research on improving the ride comfort of existing models.

[0003] In the existing brake pedal device, the pedal device base is arranged on one side of the front panel of the vehicle body and is fixedly connected to the front panel, the vacuum booster or IBC is arranged on the other side of the front panel, and the vacuum booster or IBC push rod passes through the front panel and is hinged to the pedal arm. The front panel gasket is cut out at the corresponding position to avoid the pedal device base, which results in insufficient coverage of the front panel gasket, incomplete sealing, poor sound insulation effect, and affects the NVH performance of the whole vehicle. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a brake pedal device and a vehicle, wherein the relative position of the pedal bracket and the front dash panel is raised by a washer, so that the front dash pad extends under the pedal bracket, thereby improving the NVH characteristics, and the utility model has a simple structure, is easy to install, is firmly fixed, requires a small layout space, and has good versatility.

[0005] According to the first aspect of the embodiment of the utility model, a brake pedal device comprises: a front fender, a brake control unit, a pedal assembly, a gasket, a brake connecting structure and a front fender pad; the front fender has a push rod hole; the brake control unit is arranged on one side of the front fender, and the brake control unit has a brake push rod passing through the push rod hole; the pedal assembly comprises a pedal bracket and a pedal arm, the pedal bracket has a mounting end plate arranged on the other side of the front fender, and the pedal arm is transmission-hinged with the pedal bracket and the brake push rod; the gasket is arranged between the mounting end plate and the front fender, and is respectively connected to the mounting end plate and the front fender; the brake connecting structure is fixedly connected to the mounting end plate and the front fender, respectively; the front fender pad is laid on the front fender and extends between the mounting end plate and the front fender, and the front fender pad has a first avoidance hole corresponding to the push rod hole, and a second avoidance hole corresponding to the gasket.

[0006] According to some embodiments of the present invention, the front wall pad has a contoured groove, and the mounting end plate is arranged in the contoured groove.

[0007] According to some embodiments of the utility model, one axial end of the washer is welded and fixed to the mounting end plate, the other axial end of the washer abuts against the front enclosure baffle, and the brake connection structure passes through the washer.

[0008] According to some embodiments of the utility model, the pedal arm has a rotation axis extending left and right, the washers and brake connection structures are arranged in pairs on the left and right, and multiple pairs of washers and brake connection structures are arranged along the mounting end plate.

[0009] According to some embodiments of the present utility model, the brake connection structure includes a connecting bolt and a nut, and the connecting bolt passes through the front baffle, the washer and the mounting end plate in sequence and is connected to the nut.

[0010] According to some embodiments of the present invention, the connecting bolt includes a plurality of first bolts, and the plurality of first bolts are distributed around the circumference of the push rod hole.

[0011] According to some embodiments of the utility model, the brake control unit has a mounting flange, the mounting flange abuts against the front fender, and the first bolt passes through the mounting flange, the front fender, the washer and the mounting end plate in sequence and is connected to the nut.

[0012] According to some embodiments of the present invention, a plurality of the second avoidance holes corresponding to the first bolts are all connected to the first avoidance hole.

[0013] According to some embodiments of the utility model, the front dash panel includes a plurality of front dash sheet metals, which are stacked, and the connecting bolt includes a second bolt, which sequentially passes through at least one layer of the front dash sheet metal, a washer and an installation end plate and is connected to the nut.

[0014] A vehicle according to a second aspect of an embodiment of the utility model comprises the brake pedal device.

[0015] The brake pedal device and the vehicle according to the embodiment of the utility model have at least the following beneficial effects:

[0016] The pedal assembly and brake control unit of the utility model are arranged on both sides of the front wall baffle, and the brake push rod passes through the push rod hole and is transmission-hinged with the pedal arm. When the pedal arm is stepped on, the brake push rod can be driven to move to achieve braking. The distance between the mounting end plate of the pedal bracket and the front wall baffle is raised by a washer, so that the pedal bracket and the front wall baffle can be firmly connected, and the front wall pad can be extended between the pedal bracket and the front wall baffle, so as to improve the NVH characteristic function of the brake pedal device position.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0018] Figure 1 is a side view of a brake pedal device according to an embodiment of the present utility model;

[0019] Figure 2 is a front view of a brake pedal device according to an embodiment of the present utility model;

[0020] Figure 3 is a three-dimensional schematic view of a brake assembly and a washer according to an embodiment of the present utility model;

[0021] Figure 4 is a three-dimensional schematic view of a front bulkhead and a front bulkhead gasket according to an embodiment of the present utility model;

[0022] Figure 5 is a three-dimensional exploded view of a brake pedal device according to an embodiment of the present utility model;

[0023] Figure 6 is a side sectional view of a brake pedal device according to an embodiment of the present utility model;

[0024] Figure 7 is Figure 6 a partial enlarged view of area A in

[0025] Figure 8 is Figure 6 a partial enlarged view of area B in

[0026] Reference Numerals in the Drawings:

[0027] Front Bulkhead 100; Push Rod Hole 110;

[0028] Brake Control Unit 200; Brake Push Rod 210; Mounting Flange 220;

[0029] Pedal Assembly 300; Pedal Bracket 310; Mounting End Plate 311; Pedal Arm 320; Hinge End 321; Transmission Portion 322; Foot Pedal 323;

[0030] Washer 400;

[0031] Brake Connection Structure 500; Connection Bolt 510; First Bolt 511; Second Bolt 512; Nut 520;

[0032] Front Bulkhead Gasket 600; Profiled Groove 610; First Avoidance Hole 620; Second Avoidance Hole 630. Detailed Description of the Embodiment

[0033] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0035] In the description of the present utility model, the meaning of "plural" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the original number, and understandings such as "above", "below", and "within" include the original number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0036] In the description of the present utility model, it should be noted that terms such as "set", "installed", and "connected" should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0037] The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present utility model, not all embodiments.

[0038] As Figures 1 to 8 shown, the brake pedal device of the present utility model includes: a front bulkhead 100, a brake control unit 200, a pedal assembly 300, a washer 400, a brake connection structure 500, and a front bulkhead gasket 600.

[0039] The front bulkhead 100 of this embodiment has a push rod hole 110. The front bulkhead 100 is an important component in the vehicle structure, mainly located between the engine compartment and the passenger compartment, and plays a role in separating and protecting, supporting and stabilizing.

[0040] Many orifices are provided on the front bulkhead 100 as channels for operating cables, rods, pipelines, and wire harnesses, and at the same time cooperate with the installation positions of components such as pedals and steering columns. The push rod hole 110 is an installation hole for pedal components among them. The push rod hole 110 penetrates through the front bulkhead 100 from front to back.

[0041] The brake control unit 200 and the pedal assembly 300 are respectively arranged on both sides of the front bulkhead 100. The brake control unit 200 is arranged on the side of the front bulkhead 100 facing the engine compartment, and the pedal assembly 300 is arranged on the side of the front bulkhead 100 facing the passenger compartment.

[0042] The brake control unit 200 has a brake push rod 210 passing through the push rod hole 110. The pedal assembly 300 includes: a pedal bracket 310 and a pedal arm 320. The bottom of the pedal bracket 310 has a mounting end plate 311.

[0043] The front bulkhead 100 is generally an irregular plate shape. The push rod hole 110 in this embodiment is a round hole. Taking the axial direction of the push rod hole 110 as the front-rear direction, the mounting end plate 311 is arranged at the rear side of the front bulkhead 100, the brake control unit 200 is arranged at the front side of the front bulkhead 100, and the brake push rod 210 extends from the front side of the front bulkhead 100 through the push rod hole 110 to the rear side of the front bulkhead 100.

[0044] The front end of the pedal arm 320 has a hinge end 321 rotatably hinged to the pedal bracket 310, so that the pedal arm 320 can rotate relative to the pedal bracket 310 around the hinge end 321. The rotation axis of the pedal arm 320 extends in the left-right direction. The rear end of the pedal arm 320 has a foot pedal 323. A transmission part 322 is also arranged between the foot pedal 323 and the hinge end 321, and the rear end of the brake push rod 210 is transmission-hinged to the pedal arm 320 at the transmission part 322. Among them, the transmission connection between the transmission part 322 and the brake push rod 210 is an existing structure and will not be described in detail here.

[0045] When the driver applies force to the foot pedal 323, the pedal arm 320 can swing downward and forward around the hinge end 321, and then push the brake push rod 210 forward through the transmission part 322 to achieve braking.

[0046] The brake control unit 200 can adopt a vacuum booster or an integrated brake control system (IBC). A vacuum booster is a component widely used in the automotive braking system. Its main function is to use vacuum (negative pressure) to increase the force applied by the driver to the pedal, thereby improving the braking effect and ensuring driving safety. The integrated brake control system integrates multiple functional modules such as the traditional brake booster and the electronic stability control system into one, forming a new brake integrated control element, which has the advantages of simplifying the structure of the braking system, reducing weight and cost, etc.

[0047] The washer 400 of this embodiment is disposed between the mounting end plate 311 and the front bulkhead 100. The washer 400 is in an annular shape, and the two axial ends of the washer 400 are respectively connected to the mounting end plate 311 and the front bulkhead 100.

[0048] When the corresponding positions of the mounting end plate 311 and the front bulkhead 100 on both axial sides of the washer 400 are parallel to each other, the washer 400 is in an equidistant annular shape. When the mounting end plate 311 and the front bulkhead 100 are not parallel to each other, or one or both of them are uneven, the two axial ends of the washer 400 are set according to the shapes of the corresponding mounting end plate 311 and the front bulkhead 100.

[0049] The brake connection structure 500 of this embodiment is fixedly connected to the mounting end plate 311 and the front bulkhead 100 respectively, so that the pedal bracket 310 and the front bulkhead 100 are fixed to each other, realizing the installation and fixation of the pedal assembly 300 on the front bulkhead 100.

[0050] The front bulkhead gasket 600 of this embodiment is laid on the side of the front bulkhead 100 facing the passenger compartment. The front bulkhead gasket 600 extends between the mounting end plate 311 and the front bulkhead 100, and the two sides of the front bulkhead gasket 600 are respectively in abutting connection with the mounting end plate 311 and the front bulkhead 100. The front bulkhead gasket 600 has a first avoidance hole 620 and a second avoidance hole 620. The first avoidance hole 620 is aligned with the push rod hole 110, and the brake push rod 210 passes through the first avoidance hole 620. The second avoidance hole 620 corresponds to the washer 400, and the washer 400 passes through the second avoidance hole 620.

[0051] The front bulkhead gasket 600 refers to a gasket structure for the front bulkhead of an automobile, and usually has functions such as but not limited to sound insulation, heat insulation, shock absorption, and improving the comfort and safety of the cab.

[0052] The front bulkhead gasket 600 of this embodiment has a profiling groove 610, and the mounting end plate 311 of the pedal bracket 310 is arranged in the profiling groove 610. The shape of the profiling groove 610 is set according to the shape of the mounting end plate 311, so that the thickness of other parts of the front bulkhead gasket 600 is relatively thicker than that at the position of the profiling groove 610, having better sound insulation performance. In this embodiment, the thickness of the profiling groove 610 is the same as the thickness of the washer 400, and the front side of the front bulkhead gasket 600 and the groove surface of the profiling groove 610 are respectively in contact with the front bulkhead baffle 100 and the mounting end plate 311. It should be noted that the front bulkhead gasket 600 is generally made of sound insulation materials, high-temperature resistant materials or composite materials, such as sound insulation cotton or sound insulation felt, or ceramic fibers, glass fibers, etc. Some front bulkhead gaskets 600 have a certain plasticity or elasticity. In this case, it is better that the original size of the thickness of the profiling groove 610 is greater than the thickness of the washer 400, so that the front bulkhead gasket 600 can be tightly pressed against the front bulkhead baffle 100 and the mounting end plate 311.

[0053] By providing the profiling groove 610 on the front bulkhead gasket 600, the mounting end plate 311 can have a smaller spacing from the front bulkhead baffle 100, maintaining the connection strength between the pedal bracket 310 and the front bulkhead baffle 100; and the front bulkhead gasket 600 outside the corresponding range of the pedal bracket 310 can maintain an appropriate thickness, having better NVH characteristics.

[0054] For the convenience of installation and fixation, the washer 400 of this embodiment is welded and fixed to the pedal bracket 310, and one axial side of the washer 400 is fixedly connected to the front side surface of the mounting end plate 311 by welding. In some other embodiments, the washer 400 can also be fixedly connected to the pedal bracket 310 by other means such as adhesion. In some other embodiments, the washer 400 can also be fixedly connected to the front bulkhead baffle 100, or the washer 400 has a split structure with both the pedal bracket 310 and the front bulkhead baffle 100.

[0055] The brake connection structure 500 passes through the washer 400 one by one and is fixedly connected to the front bulkhead baffle 100 and the pedal bracket 310. The brake connection structure 500 of this embodiment includes: a connection bolt 510 and a nut 520. The nut 520 is arranged at the rear side of the mounting end plate 311, and the connection bolt 510 passes through the front bulkhead baffle 100, the washer 400 and the mounting end plate 311 in sequence and is threadedly connected to the nut 520. When disassembling and assembling, the connection bolt 510 and the nut 520 can be operated.

[0056] The nut 520 is threadedly connected to the connecting bolt 510. When relative rotation occurs between the nut 520 and the connecting bolt 510, the nut 520 can move axially relative to the connecting bolt 510. The nut 520 is screwed axially, so that the front fender 100 and the mounting end plate 311 are pressed against each other, and the washer 400 and the front fender gasket 600 are pressed between the front fender 100 and the mounting end plate 311.

[0057] The front end of the pedal arm 320 of this embodiment is rotatably connected to the pedal bracket 310, so that the pedal arm 320 has a rotation axis extending left and right. The braking connection structure 500 is arranged in pairs left and right, and the washers 400 are arranged in one-to-one correspondence with the braking connection structures 500. Multiple pairs of the braking connection structures 500 are arranged vertically along the mounting end plate 311.

[0058] As Figure 3 shown, the pedal bracket 310 includes: a left bracket and a right bracket. The left bracket and the right bracket are arranged left and right, and a connecting member is provided between the left bracket and the right bracket. The connecting member is fixedly connected to the left bracket and the right bracket. The push rod hole 110 is provided between the left bracket and the right bracket. The opposite sides of the left bracket and the right bracket both have the mounting end plate 311. That is, the left side of the left bracket and the right side of the right bracket both have the mounting end plate 311, and the braking connection structures 500 arranged in pairs left and right are respectively arranged on the two mounting end plates 311. Multiple pairs of the braking connection structures 500 are arranged in the vertical direction.

[0059] The braking connection structure 500 is arranged in pairs left and right and can resist the torque perpendicular to the vertical direction. Similarly, multiple pairs of the braking connection structures 500 are arranged in the vertical direction, which can enhance the force-bearing structure between the pedal bracket 310 and the front fender 100 and resist the torque perpendicular to the left and right directions during braking.

[0060] The connecting bolt 510 of this embodiment includes: a first bolt 511 and a second bolt 511.

[0061] Multiple first bolts 511 are circumferentially distributed around the push rod hole 110. The multiple first bolts 511 distributed around the push rod hole 110 lock and fix the pedal bracket 310 and the front fender steel plate around the push rod hole 110, so that during braking, the braking displacement of the pedal arm 320 can be accurately transmitted to the brake push rod 210. Refer to Figure 5, the number of the first bolts 511 in this embodiment is four. The four first bolts 511 are symmetrically arranged in pairs left and right, and are respectively arranged on the mounting end plates 311 on the left and right sides of the push rod hole 110. In some other embodiments, the number of the first bolts 511 can be two, three, or more than four. It is preferably an even number, and the first bolts 511 with an even number can be arranged in pairs left and right.

[0062] The brake control unit 200 of this embodiment has a mounting flange 220. The mounting flange 220 is arranged on the outer periphery of the brake push rod 210. The mounting flange 220 abuts against the front side of the front bulkhead 100. The first bolt 511 sequentially passes through the mounting flange 220, the front bulkhead 100, the washer 400 and the mounting end plate 311 and then is connected to the nut 520. The brake control unit 200, the front bulkhead 100 and the pedal bracket 310 are locked and connected to each other through the first bolt 511 and the nut 520, so as to realize the mounting structure of the brake control unit 200 and the pedal bracket 310 on the front bulkhead 100.

[0063] The front bulkhead 100 of this embodiment includes a plurality of front bulkhead sheet metals. The plurality of front bulkhead sheet metal parts are arranged in a stacked manner. The second bolt 511 sequentially passes through at least one layer of the front bulkhead sheet metal, the washer 400 and the mounting end plate 311 and then is connected to the nut 520. The stacked front bulkhead sheet metals can facilitate the distributed mounting and connection of multiple components. Different components are pre-fixed and installed on different front bulkhead sheet metals, and then the multiple front bulkhead sheet metals are stacked and locked to form the front bulkhead 100.

[0064] When assembling the brake pedal device of this embodiment, first install the pedal bracket 310 on the front bulkhead sheet metal through the second bolt 511, and then lock and connect the brake control unit 200, the front bulkhead 100 and the pedal bracket 310 to each other through the first bolt 511.

[0065] The number of the second bolts 511 in this embodiment is two, and the front bulkhead 100 includes two stacked front bulkhead sheet metals. The head of the second bolt 511 is arranged between two adjacent front bulkhead sheet metals. In some other embodiments, the connecting bolt 510 further includes a third bolt. The third bolt passes through all the front bulkhead sheet metals, the washer 400 and the mounting end plate 311 and then is connected to the nut 520.

[0066] The number of the second avoidance holes 620 in this embodiment is six. Four of the second avoidance holes 620 are axially aligned with the four first bolts 511. As Figure 4As shown, since the distance between the first bolt 511 and the push rod hole 110 is small, four second avoidance holes 620 corresponding to the first bolt 511 intersect and communicate with the first avoidance hole 620 to form an avoidance space, and the four first bolts 511, the corresponding washers 400, and the brake push rod 210 are all disposed through the avoidance space.

[0067] This embodiment also provides a vehicle, including the brake pedal device of the above embodiment.

[0068] The vehicle can be a private car, such as a sedan, an SUV, an MPV, or a pickup truck, etc. The vehicle can also be an operating vehicle, such as a minivan, a bus, a light truck, or a large trailer, etc. The vehicle needs to have an electric motor that can output power or store mechanical energy as a generator. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0069] The front bulkhead 100 is disposed between the engine compartment and the passenger compartment of the vehicle. The brake control unit 200 is disposed on the side of the front bulkhead 100 facing the engine compartment, and the pedal assembly 300 is disposed on the side of the front bulkhead 100 facing the passenger compartment. The pedal bracket 310 is provided with a washer 400 so that there is a gap between its mounting end plate 311 and the front bulkhead 100, and the front gasket 600 extends into the gap between the mounting end plate 311 and the front bulkhead 100, greatly improving the NVH performance of the brake pedal mounting position.

[0070] The above has described the embodiments of the present invention in detail with reference to the drawings, but the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A brake pedal device, characterized in that: include: a front cowl panel having a push rod hole; A brake control unit is arranged on one side of the front fender and has a brake push rod passing through the push rod hole; The pedal assembly comprises a pedal bracket and a pedal arm, wherein the pedal bracket has a mounting end plate, the mounting end plate is arranged on the other side of the front wall baffle, and the pedal arm is transmission-hinged with the pedal bracket and the brake push rod; A gasket, disposed between the mounting end plate and the front dash panel, and connected to the mounting end plate and the front dash panel respectively; A brake connection structure, fixedly connected to the mounting end plate and the front wall baffle; The front wall pad is laid on the front wall baffle and extends between the mounting end plate and the front wall baffle. It has a first avoidance hole corresponding to the push rod hole and a second avoidance hole corresponding to the gasket.

2. The brake pedal device according to claim 1, characterized in that: The front wall pad has a contoured groove, and the mounting end plate is arranged in the contoured groove.

3. The brake pedal device according to claim 1, characterized in that: One axial end of the washer is welded and fixed to the mounting end plate, the other axial end of the washer is in contact with the front dash panel, and the brake connection structure is passed through the washer.

4. The brake pedal device according to claim 3, characterized in that: The rotation axis of the pedal arm extends in the left-right direction, the washers and brake connection structures are arranged in pairs on the left and right sides of the pedal bracket, and multiple pairs of washers and brake connection structures are arranged along the mounting end plate.

5. The brake pedal device according to claim 3, characterized in that: The brake connection structure comprises a connection bolt and a nut. The connection bolt passes through the front baffle, the washer and the mounting end plate in sequence and then is connected with the nut.

6. The brake pedal device according to claim 5, characterized in that: The connecting bolts include a plurality of first bolts, and the plurality of first bolts are distributed around the circumference of the push rod hole.

7. The brake pedal device according to claim 6, characterized in that: The brake control unit has a mounting flange, the mounting flange is in contact with the front dash panel, and the first bolt passes through the mounting flange, the front dash panel, the washer and the mounting end plate in sequence and is connected to the nut.

8. The brake pedal device according to claim 7, characterized in that: A plurality of the second avoidance holes corresponding to the first bolts are all connected to the first avoidance hole.

9. The brake pedal device according to claim 5, characterized in that: The front dash baffle includes a plurality of front dash sheet metals, which are stacked, and the connecting bolt includes a second bolt, which passes through at least one layer of the front dash sheet metal, a washer and an installation end plate in sequence and is connected to the nut.

10. A vehicle, characterized in that: Comprising a brake pedal device as claimed in any one of claims 1 to 9.

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