Hybrid power structure with external ISG motor

Abstract

The utility model discloses a hybrid power structure with an external ISG motor. The hybrid power structure comprises an engine shell, a piston mechanism, a transmission mechanism, a driving output shaft and the ISG motor. The engine shell is provided with a crankcase and a gearbox. The piston mechanism is connected with a crankshaft in a driving mode, and the crankshaft is installed on the crankcase. The transmission mechanism is in transmission connection with the crankshaft; the driving output shaft is arranged on the gear box and is connected with the transmission mechanism; the ISG motor is in driving connection with the driving output shaft; and the transmission mechanism and the ISG motor can respectively drive the driving output shaft to move.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a hybrid power structure with an external ISG motor. Background Art

[0002] The engines of traditional motorcycles are all driven by crankshafts, that is, the engine crankshaft drives the CVT drive disc assembly to move, and then the CVT drive disc assembly drives the CVT pulley assembly to move, and then the CVT pulley assembly drives the drive output shaft to rotate, so that the drive output shaft can drive the wheels to rotate.

[0003] With the innovation of hybrid technology, the existing hybrid engines of motorcycles install the ISG motor in the crankcase. When the SIG motor output is needed, the SIG motor can be connected to the CVT drive disc assembly through the clutch. In this way, three output modes can be achieved: engine power output, ISG motor output, or hybrid output. However, due to the limited installation space of the crankcase, the size of the ISG motor installed in the crankcase is restricted, which in turn makes the upper limit of the ISG motor power low, resulting in the current hybrid structure of motorcycles unable to meet greater power requirements. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a hybrid power structure with an external ISG motor, the installation of which is less constrained by the crankcase space, so that a higher-power IGS motor can be installed to meet power requirements.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A hybrid power structure with an external ISG motor, comprising:

[0007] an engine housing having a crankcase and a gearbox;

[0008] A piston mechanism drivingly connected to a crankshaft, wherein the crankshaft is mounted on the crankcase;

[0009] A transmission mechanism, drivingly connected to the crankshaft;

[0010] A drive output shaft is mounted on the gear box and connected to the transmission mechanism;

[0011] An ISG motor is drivingly connected to the drive output shaft;

[0012] Wherein, the transmission mechanism and the ISG motor can respectively drive the drive output shaft to move.

[0013] Furthermore, the ISG motor is coaxially connected to the drive output shaft.

[0014] Furthermore, the drive output shaft is an output shaft of the ISG motor.

[0015] Furthermore, the transmission mechanism includes a CVT drive disc assembly and a CVT pulley assembly, and the crankshaft, the CVT drive disc assembly, the CVT pulley assembly and the drive output shaft are sequentially connected in transmission.

[0016] Furthermore, the ISG motor includes a motor housing, a stator group, a rotor group and a pulley cover; the motor housing and the pulley cover together enclose a accommodating space, and the stator group and the rotor group are both installed in the accommodating space and cooperate with each other; the pulley cover is connected to the stator group or the rotor group through a connecting piece.

[0017] Furthermore, the pulley cover is connected to a heat insulation pad, and the pulley cover abuts against the stator group or the rotor group through the heat insulation pad.

[0018] Furthermore, the rotor group is arranged around the stator group, and the pulley cover is connected to the rotor group through a connecting piece.

[0019] Furthermore, the rotor shell of the rotor assembly is provided with a plurality of heat dissipation holes.

[0020] Furthermore, the two ends of the connecting member have a first limit head and a second limit head respectively, and the first limit head, the pulley cover, the thermal insulation pad, the rotor housing and the second limit head are arranged in sequence along the axial direction of the connecting member.

[0021] Furthermore, the connecting piece is passed through the thermal insulation pad.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] By disconnecting the ISG motor 6 from the transmission mechanism and then independently driving the output shaft 5, the ISG motor 6 does not need to be installed in the crankcase 11 and is no longer restricted by the installation space of the crankcase 11. The size of the ISG motor can be expanded according to actual power requirements so that it can appropriately meet the power requirements of the output shaft 5, which is particularly suitable for motorcycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a hybrid power structure with an external ISG motor of the utility model;

[0025] Figure 2 for Figure 1Schematic diagram of the structure of the ISG motor.

[0026] In the figure: 1. engine housing; 11. crankcase; 12. gearbox; 2. crankshaft; 3. transmission mechanism; 31. CVT drive disc assembly; 32. CVT pulley assembly; 4. drive output shaft; 5. ISG motor; 51. motor housing; 52. stator assembly; 53. rotor assembly; 531. rotor housing; 5311. heat dissipation hole; 54. pulley cover; 55. accommodating space; 6. thermal insulation pad; 7. connector; 71. first limit head; 72. second limit head. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element, or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element, or there may be an element centered thereon. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used 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. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] See also Figure 1-Figure 2 A hybrid power structure with an external ISG motor in a preferred embodiment of the utility model includes: an engine housing 1, a piston mechanism, a transmission mechanism 3, a drive output shaft 4 and an ISG motor 5.

[0031] The engine housing 1 has a crankcase 11 and a gear case 12 .

[0032] The piston mechanism is connected to the crankshaft 2, which is mounted on the crankcase 11. According to the prior art, the piston mechanism includes a piston and a connecting rod, which drives the piston to move through the combustion chamber, thereby transmitting power to the connecting rod, and then the connecting rod drives the crankshaft 2 to rotate and output outward.

[0033] Specifically, the transmission mechanism 3 is connected to the crankshaft 2 in transmission, that is, the power of the crankshaft 2 is output to the outside through the transmission mechanism 3.

[0034] The drive output shaft 4 is mounted on the gear box 12 and connected to the transmission mechanism 3. It can be understood that the drive output shaft 4 can be directly connected to the wheel of the motorcycle.

[0035] The ISG motor 5 is drivingly connected to the drive output shaft 4 , so that the ISG motor 5 can also directly drive the drive output shaft 4 to move without using the transmission mechanism 3 as an intermediate transmission.

[0036] That is to say, the transmission mechanism 3 and the ISG motor 5 can respectively drive the drive output shaft 4 to move.

[0037] During operation, the power source for driving the output shaft 4 can be: piston mechanism → crankshaft 2 → transmission mechanism 3 → driving the output shaft 4. It can also be: ISG motor 5 → driving the output shaft 4. It can also be driven by both driving modes at the same time.

[0038] Obviously, by disconnecting the ISG motor 5 from the transmission mechanism 3 and then independently driving the output shaft 4, the ISG motor 5 does not need to be installed in the crankcase 11 (i.e., it is externally placed outside the crankcase 11), and is therefore no longer constrained by the installation space of the crankcase 11. The size of the ISG motor 5 can be expanded according to actual power requirements so that it can appropriately meet the power requirements of the output shaft 4, which is particularly suitable for motorcycles.

[0039] In this embodiment, preferably, for ease of installation, the ISG motor 5 is coaxially connected to the drive output shaft 4. More preferably, the drive output shaft 4 is the output shaft of the ISG motor 5; and as an alternative arrangement, the ISG motor 5 may have its own output shaft, which is fixedly connected to the drive output shaft 4. The advantage of such an arrangement is that the number of accessories is reduced and the assembly workload is reduced.

[0040] In this embodiment, preferably, the transmission mechanism 3 includes a CVT drive disc assembly 31 and a CVT pulley assembly 32, and the crankshaft 2, the CVT drive disc assembly 31, the CVT pulley assembly 32 and the drive output shaft 4 are sequentially connected in transmission. In other words, the structure of the existing transmission mechanism 3 is followed. It can be understood that, as a replaceable setting mode, the transmission mechanism 3 can also be replaced by other existing mechanisms.

[0041] In this embodiment, preferably, the ISG motor 5 includes a motor housing 51, a stator group 52, a rotor group 53 and a pulley cover 54. The motor housing 51 and the pulley cover 54 together enclose a containing space 55, and the stator group 52 and the rotor group 53 are both installed in the containing space 55 and cooperate with each other; the pulley cover 54 is connected to the stator group 52 or the rotor group 53 through the connector 7. In this way, the pulley cover 54 is supported by the connector 7. Although the stator group 52 and the rotor group 53 work to generate heat, the heat will still be transferred to the pulley cover 54 through the connector 7. However, based on the small connection area between the connector 7 and the rotor group 53, and the small contact area between the connector 7 and the pulley cover 54, the heat received by the pulley cover 54 can be reduced. It can be understood that the pulley cover 54 is used to cover and isolate the belt of the CVT pulley assembly 32.

[0042] In this embodiment, preferably, the pulley cover 54 is connected to a heat insulation pad 6, and the pulley cover 54 abuts against the stator group 52 or the rotor group 53 through the heat insulation pad 6. In this way, the pulley cover 54 is in surface contact and isolation through the heat insulation pad 6, so that the pulley cover 54 can be prevented from absorbing more heat.

[0043] In this embodiment, preferably, the rotor group 53 is arranged around the stator group 52, and the pulley cover 54 is connected to the rotor group 53 through the connecting member 7. In this way, when the rotor group 53 rotates at high speed, the pulley cover 54 can be driven to rotate, so that the rotor and the pulley cover 54 can be cooled.

[0044] In this embodiment, in order to optimize the heat dissipation capability, preferably, the rotor housing 531 of the rotor assembly 53 is provided with a plurality of heat dissipation holes 5311. In this way, when the rotor assembly 53 rotates at high speed relative to the stator assembly 52, the heat dissipation holes 5311 of the rotor housing 531 rotate at high speed, forming a certain air pressure difference, so that the heat dissipation effect is better.

[0045] In this embodiment, preferably, the two ends of the connecting member 7 have a first limiting head 71 and a second limiting head 72, respectively, and the first limiting head 71, the pulley cover 54, the heat insulation pad 6, the rotor housing 531 and the second limiting head 72 are sequentially arranged along the axial direction of the connecting member 7. In this way, the pulley cover 54 and the rotor housing 531 are limited by the first limiting head 71 and the second limiting head 72, respectively, so as to prevent the pulley cover 54 from axial movement.

[0046] In this embodiment, in order to prevent the thermal insulation pad 6 from being thrown off during the high-speed rotation of the rotor assembly 53 , preferably, the connecting member 7 is passed through the thermal insulation pad 6 .

[0047] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A hybrid power structure with an external ISG motor, characterized in that: include: An engine housing (1) having a crankcase (11) and a gearbox (12); A piston mechanism, drivingly connected to a crankshaft (2), wherein the crankshaft (2) is mounted on the crankcase (11); A transmission mechanism (3) drivingly connected to the crankshaft (2); A drive output shaft (4) mounted on the gear box (12) and connected to the transmission mechanism (3); An ISG motor (5) drivingly connected to the drive output shaft (4); The transmission mechanism (3) and the ISG motor (5) are capable of respectively driving the drive output shaft (4) to move.

2. A hybrid power structure with an external ISG motor as claimed in claim 1, characterized in that: The ISG motor (5) is coaxially connected to the drive output shaft (4).

3. A hybrid power structure with an external ISG motor as claimed in claim 2, characterized in that: The drive output shaft (4) is the output shaft of the ISG motor (5).

4. A hybrid power structure with an external ISG motor as claimed in claim 1, characterized in that: The transmission mechanism (3) comprises a CVT drive disc assembly (31) and a CVT pulley assembly (32), and the crankshaft (2), the CVT drive disc assembly (31), the CVT pulley assembly (32) and the drive output shaft (4) are sequentially connected in transmission.

5. A hybrid power structure with an external ISG motor as claimed in claim 1, characterized in that: The ISG motor (5) comprises a motor housing (51), a stator group (52), a rotor group (53) and a pulley cover (54); the motor housing (51) and the pulley cover (54) together enclose a receiving space (55); the stator group (52) and the rotor group (53) are both installed in the receiving space (55) and cooperate with each other; the pulley cover (54) is connected to the stator group (52) or the rotor group (53) via a connecting member (7).

6. A hybrid power structure with an external ISG motor as claimed in claim 5, characterized in that: The pulley outer cover (54) is connected to a heat insulation pad (6), and the pulley outer cover (54) abuts against the stator group (52) or the rotor group (53) through the heat insulation pad (6).

7. A hybrid power structure with an external ISG motor as claimed in claim 6, characterized in that: The rotor group (53) is arranged around the periphery of the stator group (52), and the pulley cover (54) is connected to the rotor group (53) via a connecting piece (7).

8. A hybrid power structure with an external ISG motor as claimed in claim 7, characterized in that: The rotor housing (531) of the rotor assembly (53) is provided with a plurality of heat dissipation holes (5311).

9. A hybrid power structure with an external ISG motor as claimed in claim 8, characterized in that: The two ends of the connecting member (7) respectively have a first limit head (71) and a second limit head, and the first limit head (71), the pulley cover (54), the heat insulation pad (6), the rotor housing (531) and the second limit head are arranged in sequence along the axial direction of the connecting member (7).

10. A hybrid power structure with an external ISG motor as claimed in claim 9, characterized in that: The connecting piece (7) is inserted through the thermal insulation pad (6).

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