A new trolley integration accessory assembly

Abstract

The application relates to the technical field of electric vehicles, and discloses a novel electric vehicle integrated accessory assembly, which comprises a support I and a support II, and the support I and the support II are rigidly spliced through bolts to form an overall bearing frame, and further comprises: a driving motor fixedly arranged on the support I through bolts, a dynamic rotary pump fixedly arranged above the driving motor on the support I, an air pump fixedly arranged on one side of the driving motor on the support I, and an air conditioner fixedly arranged on the other side of the dynamic rotary pump on the support I. The integrated accessory arrangement scheme is optimized in space and cost, the dynamic rotary pump, the air pump, the air conditioner, the driving motor, the electric control and the air filter are integrated in a single assembly through the support I and the support II, the traditional multiple sets of independent supports and independent driving motors are replaced, the number of parts is greatly reduced, the material procurement and vehicle assembly man-hour cost are reduced, and the integrated structure greatly reduces the overall volume of the accessory assembly.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle technology, specifically to a novel integrated accessory assembly for electric vehicles. Background Technology

[0002] Currently, in pure electric light and medium truck models, the three core components—power steering pump (power steering pump), air compressor (air pump), and air conditioning compressor (air conditioner)—generally adopt a separate, independent arrangement: each component has its own drive motor, independent mounting bracket, and separate pipeline harness. This traditional approach has many drawbacks.

[0003] First, multiple independent drive mechanisms and dispersed supports occupy a large amount of chassis layout space, making the overall chassis layout difficult and unfavorable for the integrated layout of batteries, frames, and cooling systems. Furthermore, multiple drive motors, multiple sets of independent supports, and separate pipeline harnesses significantly increase the number of parts, leading to a simultaneous increase in material costs and assembly time costs. The speeds of the independent motors of each accessory are not correlated, and the vehicle controller needs to perform independent speed calibration for steering, brake air supply, and air conditioning systems, resulting in a large calibration workload. Moreover, the synchronous control of multiple motors is prone to energy waste and response lag. Therefore, there is an urgent need for a new type of integrated accessory assembly for electric vehicles. Summary of the Invention

[0004] This invention provides a novel integrated accessory assembly for electric vehicles, which has the advantages of small size and high degree of integration, and solves the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a novel integrated accessory assembly for electric vehicles, comprising bracket I and bracket II, wherein bracket I and bracket II are rigidly spliced ​​together by bolts to form an integral load-bearing frame, and further comprising: a drive motor, which is fixedly mounted on bracket I by bolts, and a rotating pump is fixedly mounted on bracket I above the drive motor; an air pump is fixedly mounted on bracket I on one side of the drive motor; and an air conditioner is fixedly mounted on bracket I on the other side of the rotating pump, so as to achieve that the drive motor, rotating pump, air pump and air conditioner are centrally integrated on one side of bracket I; and a power transmission device, which is mounted on the drive motor and is connected to the rotating pump, air pump and air conditioner for transmission, so as to realize the power transmission between the rotating pump, air pump and air conditioner.

[0006] Preferably, the power transmission device includes a belt, a driven pulley I on the input shaft of the rotary pump, a drive motor on the output shaft of the drive motor, a driven pulley II on the input shaft of the air pump, and a driven pulley III on the input shaft of the air conditioner. The belt is sequentially wound around the drive pulley, driven pulley II, driven pulley I, and driven pulley III to form a closed-loop transmission, thereby enabling the power output by the drive motor to be transmitted to the driven pulleys I, II, and III through the drive pulleys and belt.

[0007] Preferably, a tensioning wheel is provided on the bracket I and located on one side of the drive wheel, and it is in contact with the outer side of the belt to tension the belt, thereby increasing the tension between the belt and the driven wheel I, the drive wheel, etc., and preventing slippage. An idler wheel II is provided on the bracket I and located on the other side of the drive wheel. An idler wheel I is also provided on the bracket I and located between the driven wheel I and the driven wheel III. The idler wheel I and the idler wheel II are respectively in contact with the outer side of the belt to deflect the belt, thereby increasing the contact area between the belt and the driven wheel I, the drive wheel, the driven wheel II, and the driven wheel III.

[0008] Preferably, both the air pump and the air conditioner are equipped with clutches at their input ends. When the belt drives the driven pulley II and driven pulley III to rotate, the clutches can be used to disconnect the power input, thereby controlling whether power is input to the input ends of the air pump and the air conditioner.

[0009] Preferably, an air filter is fixedly installed on the bracket II and located behind the air conditioner by bolts, and an air intake hose connected to the air conditioner is fixedly installed on the air filter. A motor controller is fixedly installed on the bracket II, and a motor control wiring is fixedly installed on the motor controller to be electrically connected to the drive motor, so that the motor controller can control the drive motor through the motor control wiring.

[0010] Preferably, the motor controller is equipped with a speed matching control program to pre-calculate the speed ratio between driven wheel I, drive wheel, driven wheel II, and driven wheel III, so that the drive motor can reach the rated operating speed of the pump, air pump, and air conditioner in any operating speed range, and simultaneously meet the requirements of steering, braking air supply, and cooling conditions.

[0011] Preferably, a mesh baffle is provided on the bracket I and located in front of the power transmission device via a connecting rod to protect the power transmission device.

[0012] The present invention has the following beneficial effects:

[0013] 1. This invention features an integrated accessory arrangement scheme that optimizes both space and cost. By integrating the rotary pump, air pump, air conditioner, drive motor, electronic control, and air filter into a single assembly using brackets I and II, it replaces the traditional multiple independent brackets and independent drive motors. This significantly reduces the number of parts, lowers material procurement and vehicle assembly costs, and greatly reduces the overall volume of the accessory assembly, freeing up chassis space for large-capacity battery placement, thus meeting the chassis layout requirements of pure electric commercial vehicles. Furthermore, it is the first to apply a clutch-driven belt-driven air pump to the accessory assembly of pure electric light and medium trucks, a precedent in the market. The clutch enables the air pump to start and stop on demand, avoiding continuous idling and energy consumption, effectively improving the driving range of electric vehicles. This innovative clutch-driven belt-driven air pump structure fills a gap in the industry.

[0014] 2. This invention pre-calculates and calibrates the speed ratio system between the motor pulley, the rotating pump pulley, the air pump pulley, the air conditioning pump pulley, and the idler pulley. Under the output speed of a single drive motor, it can simultaneously meet the rated speed requirements of three types of accessories: power steering, brake air supply, and air conditioning cooling. There is no need to configure a separate drive motor for each accessory, simplifying the vehicle's electronic control calibration logic, reducing the development difficulty of the vehicle controller, achieving unified transmission speed ratio matching, and synchronous adaptation of multiple accessory operating conditions. It is compatible with the modular design of the entire integrated accessory assembly for all pure electric light and medium truck models. The bracket mounting points can be finely adjusted according to the vehicle frame, and the transmission belt speed ratio can be adapted and adjusted according to the vehicle's load and battery power. It can be mass-produced for pure electric light and medium trucks of different tonnages, enhancing the market competitiveness of the entire vehicle product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a top view of the structure of the present invention;

[0017] Figure 3 This is a frontal overall schematic diagram of the structure of the present invention;

[0018] Figure 4 This is a front view schematic diagram of the structure of the present invention;

[0019] Figure 5 This is a side view of the overall structure of the present invention;

[0020] Figure 6 This is a rear view of the overall structure of the present invention.

[0021] In the diagram: 1. Bracket I; 2. Bracket II; 3. Drive motor; 4. Rotary pump; 5. Air pump; 6. Air conditioner; 7. Power transmission device; 71. Driven wheel I; 72. Drive wheel; 73. Tensioner wheel; 74. Driven wheel II; 75. Belt; 76. Driven wheel III; 77. Idler wheel I; 78. Idler wheel II; 8. Air filter; 9. Inlet hose; 10. Motor controller; 11. Motor control wiring; 12. Mesh baffle. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] Please see Figure 1-6A novel integrated accessory assembly for electric vehicles includes a bracket I1 and a bracket II2, which are rigidly connected by bolts to form an integral load-bearing frame. The assembly also includes: a drive motor 3, which is bolted to the bracket I1; a rotary pump 4, which is fixedly mounted on the bracket I1 above the drive motor 3; an air pump 5, which is fixedly mounted on the bracket I1 to one side of the drive motor 3; and an air conditioner 6, which is fixedly mounted on the bracket I1 to the other side of the rotary pump 4. This integrates the drive motor 3, rotary pump 4, air pump 5, and air conditioner 6 on one side of the bracket I1. A power transmission device 7 is mounted on the drive motor 3 and is connected to the rotary pump 4, air pump 5, and air conditioner 6 for power transmission between them.

[0024] The drive motor 3, rotary pump 4, air pump 5, and air conditioner 6 are integrated and installed on bracket I1 to form a single assembly, and the power transmission device 7 provides unified power transmission, reducing the number of power sources. The motor controller 10 is installed on bracket II2, and the drive motor 3 is controlled through the motor control wiring 11. Bracket I1 and bracket II2 form a complete bracket set, which centrally supports all accessories such as steering, braking, air conditioning, drive, and electronic control, replacing the traditional multiple independent brackets and independent drive motors. This significantly reduces the number of parts and lowers the cost of material procurement and vehicle assembly time. The integrated structure greatly reduces the overall volume of the accessory assembly, freeing up chassis space for the placement of large-capacity batteries, which is suitable for the chassis layout requirements of pure electric commercial vehicles.

[0025] 2. A novel integrated accessory assembly for electric vehicles according to claim 1, characterized in that: the power transmission device 7 includes a belt 75 and a driven wheel I 71 mounted on the input shaft of the rotary pump 4, a drive motor 3 mounted on the output shaft of the drive motor 3, a driven wheel II 74 mounted on the input shaft of the air pump 5, and a driven wheel III 76 mounted on the input shaft of the air conditioner 6. The belt 75 is sequentially wound around the drive wheel 72, driven wheel II 74, driven wheel I 71, and driven wheel III 76 to form a closed-loop transmission, thereby realizing that the power output by the drive motor 3 can be transmitted to the driven wheels I 71, driven wheel II 74, and driven wheel III 76 through the drive wheel 72 and the belt 75. The drive wheel 72 and the belt 75 are used to uniformly input power to the driven wheels I 71, driven wheel II 74, and driven wheel III 76, eliminating the need to configure a separate drive motor for each accessory, simplifying the vehicle's electronic control calibration logic, and reducing the development difficulty of the vehicle controller.

[0026] A tensioning pulley 73 is provided on bracket I1 and located on one side of the drive wheel 72, and it wraps around and contacts the outer side of the belt 75 to tension the belt 75, thereby increasing the tension between the belt 75 and the driven pulley I 71 and the drive wheel 72 and preventing slippage. An idler pulley II 78 is provided on bracket I1 and located on the other side of the drive wheel 72. An idler pulley I 77 is provided on bracket I1 and located between the driven pulley I 71 and the driven pulley III 76. Idle pulley I 77 and idler pulley II 78 respectively wrap around and contact the outer side of the belt 75 to deflect the belt 75. To increase the contact area between the belt 75 and driven pulley I 71, drive pulley 72, driven pulley II 74, and driven pulley III 76, the belt 75 passes through drive pulley 72, driven pulley II 74, driven pulley I 71, and finally to driven pulley III 76, forming a transmission path. On the outer side, firstly, the tensioner 73 presses against the outer side of the belt 75 to provide pretension to the belt 75; secondly, idler pulleys I 77 and II 78 adjust the transmission angle of the belt 75, changing its contact area with driven pulley III 76, enhancing contact friction, and preventing slippage.

[0027] Both the air pump 5 and the air conditioner 6 are equipped with clutches at their input ends. When the belt 75 continuously drives the driven pulleys II 74 and III 76 to rotate, the clutches can be used to disconnect the power input, thereby controlling whether power is input to the air pump 5 and the air conditioner 6. The air pump 5 is equipped with a clutch structure at its input end, forming a belt-driven air pump with a clutch. When the air pressure in the vehicle's air tank reaches the rated upper limit, the clutch disengages, the belt idles, and the air pump stops compressing. When the air pressure is lower than the lower limit, the clutch engages, and the belt drives the air pump to replenish air. This belt-driven air pump with a clutch is the first application in the field of accessories for pure electric commercial vehicles, solving the problem of high energy consumption when the air pump in an electric vehicle is running continuously without load.

[0028] An air filter 8 is bolted to the bracket II2 and located behind the air conditioner 6. An air intake hose 9 connected to the air conditioner 6 is fixed to the air filter 8. A motor controller 10 is fixed to the bracket II2, and a motor control wiring 11 electrically connected to the drive motor 3 is fixed to the motor controller 10. This allows the motor controller 10 to control the drive motor 3 through the motor control wiring 11. The motor controller 10 collects signals from the vehicle's air storage pressure, steering load, and air conditioner activation, and adjusts the output speed of the drive motor 3 in a closed loop. At the same time, it links the clutch signal of the air pump 5. When the air storage is full, the power input of the air pump 5 is cut off, reducing the motor load and optimizing the vehicle's energy consumption.

[0029] The motor controller 10 has an internal speed matching control program to pre-calculate the speed ratio between driven wheel I 71, drive wheel 72, driven wheel II 74 and driven wheel III 76, so that the drive motor 3 can reach the rated operating speed of the rotating pump 4, air pump 5 and air conditioner 6 in any operating speed range, and simultaneously meet the requirements of steering, braking air supply and cooling conditions.

[0030] A mesh baffle 12 is installed on the bracket I1 and located in front of the power transmission device 7 via a connecting rod to protect the power transmission device 7.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel integrated accessory assembly for electric vehicles, comprising bracket I (1) and bracket II (2), wherein bracket I (1) and bracket II (2) are rigidly connected by bolts to form an integral load-bearing frame, characterized in that, Also includes: A drive motor (3) is fixedly mounted on a bracket I (1) by bolts. A rotating pump (4) is fixedly mounted on the bracket I (1) above the drive motor (3). An air pump (5) is fixedly mounted on the bracket I (1) on one side of the drive motor (3). An air conditioner (6) is fixedly mounted on the bracket I (1) on the other side of the rotating pump (4). This achieves that the drive motor (3), rotating pump (4), air pump (5) and air conditioner (6) are integrated and mounted on one side of the bracket I (1). The power transmission device (7) is mounted on the drive motor (3) and is connected to the rotary pump (4), the air pump (5) and the air conditioner (6) to realize the power transmission between the rotary pump (4), the air pump (5) and the air conditioner (6).

2. The novel integrated accessory assembly for electric vehicles according to claim 1, characterized in that: The power transmission device (7) includes a belt (75) and a driven wheel I (71) on the input shaft of the rotary pump (4) and a drive motor (3) on the output shaft of the drive motor (3). A driven wheel II (74) is provided on the input shaft of the air pump (5), and a driven wheel III (76) is provided on the input shaft of the air conditioner (6). The belt (75) is wrapped around the drive wheel (72), driven wheel II (74), driven wheel I (71) and driven wheel III (76) in sequence to form a closed-loop transmission. In this way, the power output by the drive motor (3) can be transmitted to the driven wheel I (71), driven wheel II (74) and driven wheel III (76) through the drive wheel (72) and the belt (75).

3. A novel integrated accessory assembly for electric vehicles according to claim 2, characterized in that: A tensioning wheel (73) is provided on the bracket I (1) on one side of the drive wheel (72) and surrounds the outer side of the belt (75) to tension the belt (75), enhance the tension of the belt (75) with the driven wheel I (71) and the drive wheel (72), and prevent slippage. An idler wheel II (78) is provided on the bracket I (1) on the other side of the drive wheel (72). An idler wheel I (77) is provided on the bracket I (1) between the driven wheel I (71) and the driven wheel III (76). The idler wheel I (77) and the idler wheel II (78) respectively surround the outer side of the belt (75) to deflect the belt (75) and increase the contact surface between the belt (75) and the driven wheel I (71), the drive wheel (72), the driven wheel II (74) and the driven wheel III (76).

4. A novel integrated accessory assembly for electric vehicles according to claim 3, characterized in that: Both the air pump (5) and the air conditioner (6) are equipped with clutches at their input ends. When the belt (75) is continuously driving, it drives the driven wheel II (74) and the driven wheel III (76) to rotate respectively. The clutches can be used to disconnect the power input, so as to control whether the input ends of the air pump (5) and the air conditioner (6) are input with power.

5. A novel integrated accessory assembly for electric vehicles according to claim 1, characterized in that: An air filter (8) is fixedly installed on the bracket II (2) and behind the air conditioner (6) by bolts. An air intake hose (9) connected to the air conditioner (6) is fixedly installed on the air filter (8). A motor controller (10) is fixedly installed on the bracket II (2). A motor control wiring (11) electrically connected to the drive motor (3) is fixedly installed on the motor controller (10) so that the motor controller (10) can control the drive motor (3) through the motor control wiring (11).

6. A novel integrated accessory assembly for electric vehicles according to claim 3, characterized in that: The motor controller (10) is equipped with a speed matching control program to pre-calculate the speed ratio between driven wheel I (71), drive wheel (72), driven wheel II (74) and driven wheel III (76), so that the drive motor (3) can reach the rated operating speed of the rotating pump (4), air pump (5) and air conditioner (6) in any operating speed range, and simultaneously meet the requirements of steering, braking air supply and cooling conditions.

7. A novel integrated accessory assembly for electric vehicles according to claim 1, characterized in that: A mesh baffle (12) is provided on the bracket I (1) and located on the front side of the power transmission device (7) via a connecting rod to protect the power transmission device (7).

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