Vehicle-mounted controllable generator set

Abstract

The invention relates to the technical field of internal combustion engine generators, in particular to a vehicle-mounted controllable generator set which comprises a piston internal combustion engine module and a generator component, a power output shaft is arranged on the piston internal combustion engine module, and rotation power generated by the piston internal combustion engine module is output through the power output shaft. A consumable grinding ring is arranged outside the power output shaft; a coaxial back disc is mounted on the generator component, and when the coaxial back disc rotates, the generator component can be driven to generate electricity; after the piston internal combustion engine module is started and runs for a certain time, the piston internal combustion engine module is automatically connected with the load to drive the generator component to run to generate electricity, and compared with a clutch device in the traditional technology, the clutch device can enable the power output shaft and the shaft body of the generator component not to be in frictional contact with any external part; and power loss caused by frictional contact with other parts is completely avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of internal combustion engine generators, and in particular to a vehicle-mounted controllable generator set. Background Art

[0002] In extended-range new energy vehicles, the piston internal combustion engine is operated by consuming gasoline, and the power of the piston internal combustion engine is used to generate electricity, which is then used to drive the vehicle. Although multiple energy conversions reduce efficiency, because it can keep the piston internal combustion engine in an efficient and stable speed range, its overall efficiency is still greater than the direct drive method of the internal combustion engine of traditional oil vehicles. For extended-range new energy vehicles, the internal combustion engine is not directly involved in driving. The internal combustion engine mainly starts to generate electricity when the battery power is lower than a certain percentage. The load of the internal combustion engine at the moment of startup is too high, which will affect the startup stability and increase the wear of components such as the crankshaft and connecting rod. Therefore, in the existing technology, a clutch device is usually set between the piston internal combustion engine and the generator component, so that the internal combustion engine disconnects the generator component through the clutch at the moment of startup, and then connects the generator component after the internal combustion engine stabilizes. This method has certain defects. The active disk of the clutch device needs to be driven by external power. Whether it is axially squeezed by bearings or indirectly controlled by hydraulics, it is necessary to make the clutch device produce contact friction with external components. For example, the active disk is axially squeezed by bearings, and the bearings and the active disk continue to rotate relative to each other. In the later long-term power generation process, it will bring certain energy loss and reduce the overall efficiency of the generator set. Summary of the Invention

[0003] The object of the present invention is to provide a vehicle-mounted controllable generator set to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a vehicle-mounted controllable generator set, comprising a piston internal combustion engine module and a generator component, wherein the piston internal combustion engine module is provided with a power output shaft, and the piston internal combustion engine module generates rotational power and outputs it through the power output shaft, and a consumable grinding ring is provided on the outside of the power output shaft; The generator component is mounted with a coaxial back plate, which can drive the generator component to generate electricity when the coaxial back plate rotates. The surface of the coaxial back plate is provided with a pressure transformer tank cavity, and the consumable grinding ring is in frictional contact with the pressure transformer tank cavity. A pressure regulating lock unit is provided on one side of the coaxial back plate. When the internal gas pressure of the transformer tank cavity exceeds a certain threshold, the pressure regulating lock unit locks the power output shaft and the coaxial back plate relative to each other to realize transmission connection.

[0005] The pressure regulating lock unit includes a locking cam, a switching sleeve and a locking gear sleeve. The locking cam is coaxially fixedly installed on the end of the power output shaft. A switching sleeve is provided on one side of the coaxial back plate. A locking gear sleeve is coaxially fixedly installed on the switching sleeve. When the locking gear sleeve moves axially to the locking cam, it can be locked with the locking cam to achieve transmission connection.

[0006] A center convex tube is fixedly provided on the surface of the coaxial back plate, a limiting ridge is fixedly provided on the outer surface of the center convex tube, a limiting groove is provided on the inner wall surface of the switching sleeve, and the limiting ridge is limitedly cooperated with the limiting groove so that the center convex tube and the switching sleeve can only move axially but cannot rotate relative to each other.

[0007] The outer surface of the switching sleeve is provided with an unlocking and restoring ball groove and a locking and restoring ball groove, and a restoring spring plate is fixedly provided on the coaxial back plate, and a rolling ball is embedded and installed at the end of the restoring spring plate. When the locking cam and the locking gear sleeve are in a separated state, the rolling ball is stuck in the unlocking and restoring ball groove; when the locking cam and the locking gear sleeve are locked together, the rolling ball is stuck in the locking and restoring ball groove.

[0008] The anti-restoring spring plate applies elastic pressure to the rolling ball, so that the rolling ball has an elastic tendency to move toward the direction where the switching sleeve is located.

[0009] A piston cavity is provided inside the central convex tube, and a piston part is provided in the piston cavity. The piston part is in airtight contact with the inner wall surface of the piston cavity. A piston shaft is fixedly provided on one side of the piston part, and the other end of the piston shaft is fixedly installed with the switching sleeve.

[0010] An alternating air path is provided in the coaxial back plate, one end of the alternating air path is communicated with the inner cavity of the pressure-transformer gas tank cavity, and the other end of the alternating air path is communicated with the inner cavity of the piston cavity.

[0011] A centrifugal movable groove is provided in the side wall of the central convex tube, and a centrifugal spring is provided in the centrifugal movable groove. A locking pin is fixedly provided at the end of the centrifugal spring. When the central convex tube rotates, the centrifugal spring can be driven by centrifugal force to bend elastically, so that the locking pin extends outward.

[0012] An inner wall blind hole is provided on the inner wall surface of the switching sleeve. When the locking cam and the locking gear sleeve are locked together, the locking pin will correspond to the position of the inner wall blind hole, so that the locking pin is inserted into the inner wall blind hole under the driving force of centrifugal force.

[0013] An electromagnetic sleeve is fixedly arranged between the piston internal combustion engine module and the generator component, an electromagnetic induction coil is installed on the inner wall of the electromagnetic sleeve, an air window is opened through the electromagnetic sleeve, and the electromagnetic induction coil is sleeved on the outside of the transformer gas tank cavity. The electromagnetic induction coil can directly heat the transformer gas tank cavity by utilizing the electromagnetic induction principle.

[0014] A supporting shaft disc is fixedly provided on the outer surface of the power output shaft, a telescopic push shaft is inserted in the supporting shaft disc, an annular back plate is fixedly provided on the end of the telescopic push shaft, the consumable grinding ring is detachably mounted on the annular back plate, a pressure-maintaining spring is provided between the supporting shaft disc and the annular back plate, and elastic pressure is provided by the pressure-maintaining spring to enable elastic extrusion contact between the consumable grinding ring and the pressure transformer tank cavity.

[0015] The interior of the pressure transformer tank cavity is provided with heat exchange fins, which increase the heat exchange efficiency between the pressure transformer tank cavity and the gas inside it. The surface of the pressure transformer tank cavity is provided with an outer convex ring portion, and the pressure transformer tank cavity contacts the consumable grinding ring through the outer convex ring portion.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The vehicle-mounted controllable generator set of the present invention can disconnect the power connection between the piston internal combustion engine module and the generator component at the moment the piston internal combustion engine module is started, thereby reducing the load at the moment the piston internal combustion engine module is started. After the piston internal combustion engine module has been running for a certain period of time, it automatically connects the load to drive the generator component to generate electricity. Compared with the clutch device in traditional technology, it can prevent the power output shaft and the shaft of the generator component from frictionally contacting any external parts, completely avoiding power loss caused by frictional contact with other components, and effectively improving the efficiency of the generator set.

[0017] The present invention cooperates with structures such as the electromagnetic sleeve and electromagnetic induction coil in conjunction with the transformer gas tank cavity and other structures to achieve active control without frictional contact. By heating the transformer gas tank cavity without contact, the active connection between the power output shaft and the shaft body of the generator component is achieved, which is more flexible and controllable and can adapt to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0020] Figure 3 It is a three-dimensional half-section diagram of the present invention.

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of area A in the middle.

[0022] Figure 5 It is a three-dimensional half-section front view of the present invention.

[0023] Figure 6 for Figure 5 Enlarged schematic diagram of area B in the middle.

[0024] Figure 7 This is a schematic diagram of the structure of the piston internal combustion engine module of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the generator components of the present invention.

[0026] Figure 9 for Figure 8 Enlarged schematic diagram of area C in the middle.

[0027] Figure 10 This is a structural diagram of the switching sleeve of the present invention.

[0028] Figure: 1. Piston internal combustion engine module; 2. Generator components; 3. Power take-off shaft; 4. Consumable grinding ring; 5. Coaxial back plate; 6. Transformer tank cavity; 7. Locking cam; 8. Switching sleeve; 9. Locking gear sleeve; 801. Center cam; 802. Limiting edge; 803. Limiting slot; 804. Unlocking ball slot; 805. Locking ball slot; 806. Resisting spring plate; 807. Rolling ball; 808. Piston cavity; 809. Piston part; 810 , piston shaft; 811, interactive air path; 812, centrifugal movable groove; 813, centrifugal shrapnel; 814, locking pin; 815, inner wall blind hole; 201, electromagnetic sleeve; 202, electromagnetic induction coil; 203, air window; 301, supporting shaft disc; 302, telescopic push shaft; 303, annular back plate; 304, pressure holding spring; 601, heat exchange fin; 602, outer convex ring; 101, heat sink; 102, fan blade module; 204, electrical control box. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 efforts are within the scope of protection of the present invention.

[0030] See also Figures 1 to 10 The present invention provides a technical solution: a vehicle-mounted controllable generator set, comprising a piston internal combustion engine module 1 and a generator component 2. The piston internal combustion engine module 1 is provided with a power output shaft 3, and the piston internal combustion engine module 1 generates rotational power and outputs it through the power output shaft 3. The outer surface of the power output shaft 3 is provided with a consumable grinding ring 4; a coaxial back plate 5 is installed on the generator component 2, and when the coaxial back plate 5 rotates, it can drive the generator component 2 to generate electricity, such as Figure 4As shown in , the coaxial back plate 5 is fixedly installed coaxially with the rotating shaft in the generator component 2. When the coaxial back plate 5 rotates, it can drive the rotating shaft in the generator component 2 to rotate, thereby enabling the generator component 2 to generate electricity.

[0031] A transformer gas tank cavity 6 is provided on the surface of the coaxial back plate 5, and the consumable grinding ring 4 is in frictional contact with the transformer gas tank cavity 6; a pressure regulating lock unit is provided on one side of the coaxial back plate 5. When the internal gas pressure of the transformer gas tank cavity 6 exceeds a certain threshold, the pressure regulating lock unit will lock the power output shaft 3 and the coaxial back plate 5 relative to each other to realize transmission connection.

[0032] like Figure 4 As shown in the figure, the pressure regulating lock unit includes a locking cam 7, a switching sleeve 8 and a locking gear sleeve 9. The locking cam 7 is coaxially fixedly mounted on the end of the power output shaft 3. A switching sleeve 8 is provided on one side of the coaxial back plate 5. A locking gear sleeve 9 is coaxially fixedly mounted on the switching sleeve 8. When the locking gear sleeve 9 moves axially to the locking cam 7, it can be locked with the locking cam 7 to realize transmission connection.

[0033] A central convex tube 801 is fixedly provided on the surface of the coaxial back plate 5, a limiting rib 802 is fixedly provided on the outer surface of the central convex tube 801, and a limiting groove 803 is provided on the inner wall surface of the switching sleeve 8. The limiting rib 802 and the limiting groove 803 are limitedly cooperated so that the central convex tube 801 and the switching sleeve 8 can only move axially and cannot rotate relative to each other.

[0034] The outer surface of the switching sleeve 8 is provided with an unlocking and restoring ball groove 804 and a locking and restoring ball groove 805. A restoring spring plate 806 is fixedly provided on the coaxial back plate 5. A rolling ball 807 is embedded and installed at the end of the restoring spring plate 806. When the locking cam 7 and the locking gear sleeve 9 are in a separated state, the rolling ball 807 is stuck in the unlocking and restoring ball groove 804; when the locking cam 7 and the locking gear sleeve 9 are locked together, the rolling ball 807 is stuck in the locking and restoring ball groove 805.

[0035] The anti-return spring plate 806 applies elastic pressure to the rolling ball 807, so that the rolling ball 807 has an elastic tendency to move toward the direction of the switching sleeve 8. When the coaxial back plate 5 rotates, the rolling ball 807 will also be subjected to centrifugal force, ensuring that the elastic force of the anti-return spring plate 806 is strong enough to enable it to completely overcome the centrifugal force. The rotational speed of the coaxial back plate 5 is known, and the magnitude of the centrifugal force to which the rolling ball 807 is subjected during operation can be predicted. By presetting the elastic force of the anti-return spring plate 806, it is ensured that the pressure of the rolling ball 807 stuck in the unlocking anti-return ball groove 804 and the locking anti-return ball groove 805 meets the set threshold.

[0036] A piston cavity 808 is defined within the central convex tube 801. A piston portion 809 is disposed within the piston cavity 808. The piston portion 809 is in airtight contact with the inner wall surface of the piston cavity 808. A piston shaft 810 is fixedly disposed on one side of the piston portion 809, and the other end of the piston shaft 810 is fixedly mounted to the switching sleeve 8. An alternating air path 811 is defined within the coaxial back plate 5. One end of the alternating air path 811 communicates with the inner cavity of the transformer gas tank cavity 6, and the other end of the alternating air path 811 communicates with the inner cavity of the piston cavity 808. A centrifugal movable groove 812 is defined within the side wall of the central convex tube 801. A centrifugal shrapnel 813 is disposed within the centrifugal movable groove 812. A locking pin 814 is fixedly disposed at the end of the centrifugal shrapnel 813. When the central convex tube 801 rotates, the centrifugal force drives the centrifugal shrapnel 813 to elastically bend, causing the locking pin 814 to extend outward. An inner wall blind hole 815 is provided on the inner wall surface of the switching sleeve 8. When the locking cam 7 and the locking gear sleeve 9 are locked together, the locking pin 814 will correspond to the position of the inner wall blind hole 815, so that the locking pin 814 is inserted into the inner wall blind hole 815 under the driving force of centrifugal force.

[0037] An electromagnetic sleeve 201 is fixedly installed between the piston internal combustion engine module 1 and the generator component 2. An electromagnetic induction coil 202 is installed on the inner wall of the electromagnetic sleeve 201. An air window 203 is opened through the electromagnetic sleeve 201. The electromagnetic induction coil 202 is sleeved on the outside of the transformer gas tank cavity 6. The electromagnetic induction coil 202 can directly heat the transformer gas tank cavity 6 by utilizing the electromagnetic induction principle.

[0038] A supporting shaft disc 301 is fixedly provided on the outer surface of the power output shaft 3, a telescopic push shaft 302 is inserted in the supporting shaft disc 301, an annular back plate 303 is fixedly provided on the end of the telescopic push shaft 302, the consumable grinding ring 4 is detachably mounted on the annular back plate 303, and a pressure-maintaining spring 304 is provided between the supporting shaft disc 301 and the annular back plate 303. The pressure-maintaining spring 304 provides elastic pressure, so that the consumable grinding ring 4 and the transformer gas tank cavity 6 are elastically squeezed into contact.

[0039] The interior of the pressure-transformer tank cavity 6 is provided with heat exchange fins 601, which increase the heat exchange efficiency between the pressure-transformer tank cavity 6 and the gas inside it. The surface of the pressure-transformer tank cavity 6 is provided with an outer convex ring portion 602, through which the pressure-transformer tank cavity 6 contacts the consumable grinding ring 4. Figure 4 As shown in the figure, the consumable grinding ring 4 is fixed to the annular back plate 303 by bolts. The consumable grinding ring 4 can be replaced by removing the bolts. The hardness of the consumable grinding ring 4 is lower than the hardness of the outer convex ring portion 602, so that when the consumable grinding ring 4 and the outer convex ring portion 602 are in contact and friction, the consumable grinding ring 4 is preferentially worn.

[0040] like Figure 2As shown in the figure, a heat sink 101 is provided on the piston internal combustion engine module 1, and a fan module 102 is provided on one side of the heat sink 101. The operation of the piston internal combustion engine module 1 drives the fan module 102 to rotate, and the fan module 102 generates airflow to cool the heat sink 101, and the heat sink 101 cools the piston internal combustion engine module 1.

[0041] An electrical control box 204 is provided outside the generator component 2. The electrical control box 204 integrates the control system module of the generator component 2, including control circuits, protection devices, etc., which can realize voltage regulation, power control, fault protection, etc. of the generator, which will not be repeated here.

[0042] When the generator set of the present invention is in use, the locking cam 7 and the locking gear sleeve 9 are initially in a separated state. When the piston internal combustion engine module 1 is started, the power output shaft 3 rotates, but does not drive the coaxial back plate 5 to rotate. During the rotation of the power output shaft 3, if Figure 4 As shown in the figure, the consumable grinding ring 4 is driven to rotate synchronously by the supporting shaft disc 301 and the annular back plate 303. Since the coaxial back plate 5 and the pressure transformer tank cavity 6 are in a stationary state, there will be relative friction between the consumable grinding ring 4 and the pressure transformer tank cavity 6.

[0043] The consumable grinding ring 4 rotates relative to the transformer gas tank cavity 6 through the outer convex ring part 602, and the transformer gas tank cavity 6 is rubbed, which causes the transformer gas tank cavity 6 to heat up rapidly within a few seconds. The temperature of the transformer gas tank cavity 6 increases, and the internal gas expands, which increases the gas pressure in the transformer gas tank cavity 6. The gas pressure enters the piston cavity 808 through the interactive gas path 811, and the gas pressure acts on the end of the piston part 809. However, since the ball 807 is stuck in the unlocking and blocking ball groove 804, the position of the switching sleeve 8 is locked. Therefore, when the gas is lower than a certain threshold, the piston part 809 and the switching sleeve 8 will not move. When the gas pressure in the piston cavity 808 exceeds a certain threshold, the ball 807 will move out of the unlocking and blocking ball groove 804 under the pressure push, causing the switching sleeve 8 and the locking gear sleeve 9 to directly move axially for a distance, and the locking gear sleeve 9 is directly and completely sleeved on the outside of the locking cam 7 for locking transmission.

[0044] The advantage of locking the position by means of the rolling ball 807 in conjunction with the unlocking ball groove 804 is that it can prevent the switching sleeve 8 and the locking gear sleeve 9 from slowly shifting as the air pressure increases, and avoid the problem of damage to the teeth caused by the locking gear sleeve 9 contacting a small part of the locking cam 7 during the slow axial shift. The above-mentioned structural coordination enables the locking gear sleeve 9 to directly move into position for full engagement after the gas pressure intensity in the piston cavity 808 exceeds a certain threshold.

[0045] When the locking cam 7 and the locking gear sleeve 9 are fully engaged, the power output shaft 3 drives the coaxial back plate 5 to rotate, so that the generator component 2 starts to operate and generate electricity. The rolling ball 807 will be stuck in the locking ball groove 805 for limit locking. At the same time, the inner wall blind hole 815 will correspond to the position of the locking pin 814. Under the action of centrifugal force, the locking pin 814 will extend outward and be stuck in the inner wall blind hole 815 to perform secondary locking. Since the consumable grinding ring 4 and the transformer tank cavity 6 are relatively static in this state, the temperature of the transformer tank cavity 6 continues to decrease, which can prevent the internal air pressure of the transformer tank cavity 6 from decreasing after the temperature drops, causing the locking gear sleeve 9 to reset and move. Only when the machine is shut down and the centrifugal force disappears, the locking pin 814 will be pulled out of the inner wall blind hole 815, and the locking gear sleeve 9 can be reset and moved.

[0046] In the process of the above-mentioned power output shaft 3 driving the coaxial back plate 5 to rotate, the consumable grinding ring 4, the transformer gas tank cavity 6 and other components do not contact any static parts in the outside world, thereby completely avoiding contact friction and ensuring efficient transmission between the power output shaft 3 and the coaxial back plate 5.

[0047] When the piston internal combustion engine module 1 is shut down, there are two working conditions. One is that the piston internal combustion engine module 1 runs for a sufficient time so that the transformer tank cavity 6 is completely cooled down, and the air pressure inside the transformer tank cavity 6 is restored. The reduced air pressure causes the piston part 809 to be subjected to negative pressure suction, and can drive the rolling ball 807 to disengage from the locking ball groove 805. In this state, once the piston internal combustion engine module 1 is shut down, the locking pin 814 loses centrifugal force and is pulled out of the inner wall blind hole 815, and the locking gear sleeve 9 will be directly separated from the locking cam 7 and reset to the initial state.

[0048] Under another working condition, the piston internal combustion engine module 1 runs for a short time and then shuts down. At this time, the transformer tank cavity 6 has not yet completely cooled down, and the negative pressure suction force on the piston part 809 is not enough to drive the ball 807 out of the locking ball resistance groove 805. In this state, after the piston internal combustion engine module 1 is shut down, even if the locking pin 814 is pulled out from the inner wall blind hole 815, the locking gear sleeve 9 and the locking cam 7 remain engaged until the transformer tank cavity 6 continues to cool down, so that the negative pressure suction force on the piston part 809 can drive the ball 807 out of the locking ball resistance groove 805, and the locking gear sleeve 9 will be directly separated from the locking cam 7.

[0049] The above makes the active state of the locking gear sleeve 9 directly and quickly move a distance, directly engage in place or directly separate, avoiding slow shaft movement, and further avoiding the working condition of small partial engagement between the locking cam 7 and the locking gear sleeve 9.

[0050] When it is necessary to ensure transmission engagement between the generator component 2 and the piston internal combustion engine module 1 before starting the piston internal combustion engine module 1, the electromagnetic induction coil 202 can be used to directly heat the transformer gas tank chamber 6, causing the gas inside the transformer gas tank chamber 6 to expand. Based on the same principle as above, the locking gear sleeve 9 and the locking cam 7 are directly engaged, maintaining the transmission state between the power output shaft 3 and the coaxial back plate 5, and achieving active control. There is no contact friction between the electromagnetic induction coil 202 and the transformer gas tank chamber 6, and no additional power loss will be caused during subsequent continuous power generation.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted controllable generator set, comprising a piston internal combustion engine module and a generator component, characterized in that: The piston internal combustion engine module is provided with a power output shaft, and the piston internal combustion engine module generates rotational power and outputs it through the power output shaft, and a consumable grinding ring is provided on the outside of the power output shaft; The generator component is mounted with a coaxial back plate, which can drive the generator component to generate electricity when the coaxial back plate rotates. The surface of the coaxial back plate is provided with a pressure transformer tank cavity, and the consumable grinding ring is in frictional contact with the pressure transformer tank cavity. A pressure regulating lock unit is provided on one side of the coaxial back plate. When the internal gas pressure of the transformer tank cavity exceeds a certain threshold, the pressure regulating lock unit locks the power output shaft and the coaxial back plate relative to each other to realize transmission connection.

2. The vehicle-mounted controllable generator set according to claim 1, characterized in that: The pressure regulating lock unit includes a locking cam, a switching sleeve and a locking gear sleeve. The locking cam is coaxially fixedly installed on the end of the power output shaft. A switching sleeve is provided on one side of the coaxial back plate. A locking gear sleeve is coaxially fixedly installed on the switching sleeve. When the locking gear sleeve moves axially to the locking cam, it can be locked with the locking cam to achieve transmission connection.

3. The vehicle-mounted controllable generator set according to claim 2, characterized in that: A center convex tube is fixedly provided on the surface of the coaxial back plate, a limiting ridge is fixedly provided on the outer surface of the center convex tube, a limiting groove is provided on the inner wall surface of the switching sleeve, and the limiting ridge is limitedly cooperated with the limiting groove so that the center convex tube and the switching sleeve can only move axially but cannot rotate relative to each other.

4. The vehicle-mounted controllable generator set according to claim 2, characterized in that: The outer surface of the switching sleeve is provided with an unlocking and restoring ball groove and a locking and restoring ball groove, and a restoring spring plate is fixedly provided on the coaxial back plate, and a rolling ball is embedded and installed at the end of the restoring spring plate. When the locking cam and the locking gear sleeve are in a separated state, the rolling ball is stuck in the unlocking and restoring ball groove; when the locking cam and the locking gear sleeve are locked together, the rolling ball is stuck in the locking and restoring ball groove.

5. The vehicle-mounted controllable generator set according to claim 4, characterized in that: The anti-restoring spring plate applies elastic pressure to the rolling ball, so that the rolling ball has an elastic tendency to move toward the direction where the switching sleeve is located.

6. The vehicle-mounted controllable generator set according to claim 3, characterized in that: A piston cavity is provided inside the central convex tube, and a piston part is provided in the piston cavity. The piston part is in airtight contact with the inner wall surface of the piston cavity. A piston shaft is fixedly provided on one side of the piston part, and the other end of the piston shaft is fixedly installed with the switching sleeve.

7. The vehicle-mounted controllable generator set according to claim 6, characterized in that: An alternating air path is provided in the coaxial back plate, one end of the alternating air path is communicated with the inner cavity of the pressure-transformer gas tank cavity, and the other end of the alternating air path is communicated with the inner cavity of the piston cavity.

8. The vehicle-mounted controllable generator set according to claim 3, characterized in that: A centrifugal movable groove is provided in the side wall of the central convex tube, and a centrifugal spring is provided in the centrifugal movable groove. A locking pin is fixedly provided at the end of the centrifugal spring. When the central convex tube rotates, the centrifugal spring can be driven by centrifugal force to bend elastically, so that the locking pin extends outward.

9. The vehicle-mounted controllable generator set according to claim 8, characterized in that: An inner wall blind hole is provided on the inner wall surface of the switching sleeve. When the locking cam and the locking gear sleeve are locked together, the locking pin will correspond to the position of the inner wall blind hole, so that the locking pin is inserted into the inner wall blind hole under the driving force of centrifugal force.

10. The vehicle-mounted controllable generator set according to claim 1, characterized in that: An electromagnetic sleeve is fixedly arranged between the piston internal combustion engine module and the generator component, an electromagnetic induction coil is installed on the inner wall of the electromagnetic sleeve, an air window is opened through the electromagnetic sleeve, and the electromagnetic induction coil is sleeved on the outside of the transformer gas tank cavity. The electromagnetic induction coil can directly heat the transformer gas tank cavity by utilizing the electromagnetic induction principle.

11. The vehicle-mounted controllable generator set according to claim 1, characterized in that: A supporting shaft disc is fixedly provided on the outer surface of the power output shaft, a telescopic push shaft is inserted in the supporting shaft disc, an annular back plate is fixedly provided on the end of the telescopic push shaft, the consumable grinding ring is detachably mounted on the annular back plate, a pressure-maintaining spring is provided between the supporting shaft disc and the annular back plate, and elastic pressure is provided by the pressure-maintaining spring to enable elastic extrusion contact between the consumable grinding ring and the pressure transformer tank cavity.

12. The vehicle-mounted controllable generator set according to claim 1, characterized in that: The interior of the pressure transformer tank cavity is provided with heat exchange fins, which increase the heat exchange efficiency between the pressure transformer tank cavity and the gas inside it. The surface of the pressure transformer tank cavity is provided with an outer convex ring portion, and the pressure transformer tank cavity contacts the consumable grinding ring through the outer convex ring portion.

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