Clutch type air compressor assembly integrated with electromagnetic valve and air compressor system

Abstract

The utility model relates to the technical field of air compressors, and provides a clutch type air compressor assembly integrated with an electromagnetic valve and an air compressor system. The clutch type air compressor assembly comprises an air compressor and a clutch arranged in a shell of the air compressor. The electromagnetic valve and the shell are integrally assembled, the electromagnetic valve comprises a valve element and an exhaust channel which are arranged in the valve cavity, and a first connector and a second connector which are communicated with the valve cavity, and the second connector is connected with the clutch through a response pipeline arranged around the partial shell; along with movement of the valve element, the first connector communicates with the second connector through the valve cavity, or the second connector communicates with the exhaust channel through the valve cavity. The clutch is efficiently and stably controlled to be engaged and disengaged through the electromagnetic valve on the basis of electric signals; the electromagnetic valve and the air compressor are integrally assembled together, the integration degree of components is improved, a response pipeline between the electromagnetic valve and the clutch is shortened, and therefore the response speed of the clutch is increased, and efficient control over the air compressor is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a clutch air compressor assembly and an air compressor system integrated with a solenoid valve. Background Art

[0002] In vehicles, air compressors are used to generate compressed gas for use as a power source, brake air source, and other applications. The air compressor's pumping and unloading can be controlled by a clutch. When the clutch is engaged, power from, for example, an internal combustion engine is transferred to the air compressor, causing it to pump air. When the clutch is disengaged, power is disconnected, the air compressor stops pumping air, and enters a unloading state.

[0003] The clutch's engagement and disengagement is traditionally controlled by an unloading valve actuated by a pneumatic control signal. This unloading valve, a mechanical spring structure, suffers from a problem where its applied pressure decays with use, resulting in a slower response to the pneumatic control signal. This affects the clutch's response speed and, in turn, affects the control of the air compressor.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0005] In view of this, the utility model provides a clutch air compressor assembly and an air compressor system integrated with a solenoid valve, which efficiently and stably controls the engagement and disengagement of the clutch based on an electrical signal through the solenoid valve; the solenoid valve and the air compressor are integrated together, which not only improves the integration of components, but also shortens the response pipeline between the solenoid valve and the clutch, thereby improving the response speed of the clutch and realizing efficient control of the air compressor.

[0006] According to one aspect of the present invention, a clutch-type air compressor assembly integrated with a solenoid valve is provided, comprising: an air compressor and a clutch arranged in a housing of the air compressor; a solenoid valve, integrally assembled with the housing, the solenoid valve comprising a valve core and an exhaust passage arranged in a valve cavity, and a first interface and a second interface connected to the valve cavity, the second interface being connected to the clutch via a response pipeline arranged around a part of the housing; as the valve core moves, the first interface and the second interface are connected via the valve cavity, or the second interface is connected to the exhaust passage via the valve cavity.

[0007] In some embodiments, in the first state of the solenoid valve, the valve core cuts off the communication between the first interface and the valve cavity, and enables the second interface to communicate with the exhaust channel through the valve cavity; in the second state of the solenoid valve, the valve core cuts off the communication between the exhaust channel and the valve cavity, and enables the first interface and the second interface to communicate with each other through the valve cavity.

[0008] In some embodiments, the first state is a power-off state of the solenoid valve, and the second state is a power-on state of the solenoid valve.

[0009] In some embodiments, the valve core is formed as a cylindrical valve core, a first end of the valve core is used to cooperate with the first interface, and a second end of the valve core is used to cooperate with the exhaust channel.

[0010] In some embodiments, a gas flow channel connecting the valve cavity and the exhaust channel is left between the valve core and the valve cavity, or a gas flow channel connecting the valve cavity and the exhaust channel is opened in the valve core.

[0011] In some embodiments, the solenoid valve includes a valve body and a valve seat connected to each other, the valve cavity is arranged in the valve body, and the first interface and the second interface are arranged on the valve seat.

[0012] In some embodiments, the first interface is perpendicular to the second interface.

[0013] In some embodiments, the solenoid valve is mounted on the housing via the valve seat.

[0014] In some embodiments, the housing includes a crankcase for accommodating a crankshaft of the air compressor, and the solenoid valve is mounted on the crankcase.

[0015] According to another aspect of the present invention, an air compressor system is provided, comprising an air compressor assembly, an air handling unit and an air reservoir connected in sequence, and an electronic control unit and a pressure sensor electrically connected, wherein: the air compressor assembly is the clutch air compressor assembly described in any of the above embodiments, the solenoid valve of the clutch air compressor assembly is connected to the electronic control unit, and the first interface of the solenoid valve is connected to the air reservoir.

[0016] Compared with the prior art, the beneficial effects of the present invention include at least:

[0017] The present invention uses a solenoid valve to efficiently and stably control the engagement and disengagement of the clutch based on an electrical signal, overcoming the slow response problem caused by control using a pneumatic control signal and a mechanical spring structured unloading valve. The solenoid valve is energized and de-energized under the control of an electrical signal, causing the valve core to move to switch the working state of the solenoid valve. When the valve core moves to the first interface and connects with the second interface through the valve cavity, the gas from the first interface can be transported to the clutch chamber through the valve cavity, the second interface, and the response pipeline; when the valve core moves to the second interface and connects to the exhaust channel through the valve cavity, the gas in the clutch chamber can be discharged through the response pipeline, the second interface, the valve cavity, and the exhaust channel. In this way, the clutch state switching between engagement and disengagement is achieved.

[0018] The solenoid valve of the utility model is integrated with the air compressor and assembled together, which not only improves the integration of components and forms an assembly of the air compressor and the solenoid valve, but also shortens the response pipeline between the solenoid valve and the clutch. The response pipeline is only arranged around a part of the housing, thereby improving the response speed of the clutch and realizing efficient control of the air compressor.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 and Figure 2 A schematic diagram showing the three-dimensional structure of a clutch air compressor assembly integrated with a solenoid valve in an embodiment of the present utility model is shown;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the solenoid valve in an embodiment of the present utility model is shown;

[0023] Figures 4 to 7 The cross-sectional structure diagram of the solenoid valve in the embodiment of the present utility model is shown, wherein: Figure 4 and Figure 5 shows a cross-sectional structure of the solenoid valve in the first state, Figure 6 and Figure 7 The cross-sectional structure of the solenoid valve in the second state is shown. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0025] The accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and their repeated description will be omitted.

[0026] The terms "first," "second," and similar terms used in the specific description do not indicate any order, quantity, or importance, but are simply used to distinguish different components. Terms such as "upper" and "lower" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended solely for ease of description and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, when a device is said to be "connected" to another device, this includes not only direct connections but also indirect connections through other components.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0028] Figure 1 and Figure 2 The three-dimensional structure of the clutch air compressor assembly integrated with the solenoid valve is shown. Figure 3 The three-dimensional structure of the solenoid valve is shown in Figure 1. Figures 4 to 7 The cross-sectional structure of the solenoid valve is shown; Figures 1 to 7 As shown, the clutch air compressor assembly with integrated solenoid valve provided by the embodiment of the present invention includes:

[0029] An air compressor and a clutch provided in a housing 100 of the air compressor (the structures of the air compressor and the clutch are not specifically shown);

[0030] The solenoid valve 200 is integrally assembled with the housing 100 and includes a valve core 211 and an exhaust passage 212 disposed in a valve chamber 210, as well as a first port 221 and a second port 222 communicating with the valve chamber 210. The second port 222 is connected to the clutch via a response pipeline 300 disposed around a portion of the housing 100.

[0031] As the valve core 211 moves, the first port 221 is communicated with the second port 222 via the valve cavity 210 , or the second port 222 is communicated with the exhaust channel 212 via the valve cavity 210 .

[0032] The present invention uses a solenoid valve 200 to efficiently and stably control the engagement and disengagement of the clutch based on an electrical signal, overcoming the slow response associated with control using a pneumatic control signal and a mechanical spring-structured unloading valve. The solenoid valve 200 is energized and de-energized under the control of an electrical signal, causing the valve core 211 to move, switching the solenoid valve's operating state. When the valve core 211 moves to a position where the first port 221 connects to the second port 222 via the valve chamber 210, gas from the first port 221 can be delivered to the clutch chamber via the valve chamber 210, the second port 222, and the response line 300. When the valve core 211 moves to a position where the second port 222 connects to the exhaust passage 212 via the valve chamber 210, gas in the clutch chamber can be discharged via the response line 300, the second port 222, the valve chamber 210, and the exhaust passage 212. This achieves switching between the engaged and disengaged clutch states.

[0033] The solenoid valve 200 of the utility model is integrated with the air compressor, which not only improves the integration of components and forms an assembly of the air compressor and the solenoid valve 200, but also shortens the response pipeline 300 between the solenoid valve 200 and the clutch. The response pipeline 300 is only arranged around a part of the housing 100, thereby improving the response speed of the clutch and realizing efficient control of the air compressor.

[0034] The response pipeline 300 and the housing 100 can be firmly assembled by one or more pipe clamps or other components.

[0035] Figure 4 and Figure 5 The cross-sectional structure of the solenoid valve in the first state is shown. Figure 6 and Figure 7 The cross-sectional structure of the solenoid valve in the second state is shown; Figures 1 to 7 As shown, in some embodiments:

[0036] In the first state of the solenoid valve 200, the valve core 211 cuts off the communication between the first port 221 and the valve chamber 210, and allows the second port 222 to communicate with the exhaust passage 212 through the valve chamber 210. Figure 4 As shown, the valve core 211 moves upward to block the communication between the first interface 221 and the valve cavity 210; Figure 5 The dashed arrow, combined Figure 1 As shown, the gas in the clutch chamber is discharged through the response pipeline 300, the second interface 222, the valve cavity 210 and the exhaust channel 212, so that the clutch is engaged and the air compressor is pumping air. The first state can be a power-on state or a power-off state, which can be set according to needs.

[0037] In the second state of the solenoid valve 200, the valve core 211 blocks the communication between the exhaust passage 212 and the valve chamber 210, and enables the first port 221 to communicate with the second port 222 through the valve chamber 210. Figure 6 and Figure 7 As shown by the dotted arrow, the valve core 211 moves downward to block the communication portion between the exhaust channel 212 and the valve cavity 210, and enables the first interface 221 and the second interface 222 to communicate through the valve cavity 210; Figure 6 and Figure 7 , and combined Figure 1 As shown, the gas from the first port 221 can be delivered to the clutch chamber through the valve cavity 210, the second port 222, and the response pipeline 300, thereby disengaging the clutch and unloading the air compressor. The second state can be a power-off state or a power-on state, which can be set according to needs.

[0038] In some embodiments, the first state is the de-energized state of the solenoid valve 200, and the second state is the energized state of the solenoid valve 200. Thus, when the solenoid valve 200 is de-energized and closed, the valve core 211 moves upward under the action of the spring 214, allowing the gas in the clutch chamber to enter the solenoid valve 200 through the second port 222 and then be discharged, thereby engaging the clutch and causing the air compressor to start pumping air. When the solenoid valve 200 is energized and opened, the valve core 211 moves downward, allowing the air signal to enter the solenoid valve 200 through the first port 221, and then enter the clutch through the second port 222 and the response pipeline 300, causing it to disengage and causing the air compressor to start unloading.

[0039] In some embodiments, the valve core 211 is formed as a cylindrical valve core, and the first end 211a of the valve core 211 is used to cooperate with the first interface 221, and the connecting part between the first interface 221 and the valve cavity 210 can be blocked and connected through the first end 211a; the second end 211b of the valve core 211 is used to cooperate with the exhaust channel 212, and the connecting part between the exhaust channel 212 and the valve cavity 210 can be blocked and connected through the second end 211b.

[0040] In some embodiments, a gas flow passage 216 is provided between the valve core 211 and the valve cavity 210, connecting the valve cavity 210 and the exhaust passage 212. Alternatively, a gas flow passage 216 is provided in the valve core 211, connecting the valve cavity 210 and the exhaust passage 212. The gas flow passage 216 enables communication between the valve cavity 210 and the exhaust passage 212, so that when air is required, the gas in the clutch chamber is discharged through the solenoid valve 200, thereby engaging the clutch.

[0041] In some embodiments, the solenoid valve 200 includes a valve body 200b and a valve seat 200a connected to each other. The valve cavity 210 is disposed in the valve body 200b, and the first and second ports 221, 222 are disposed on the valve seat 200a. The valve body 200b and the valve seat 200a can be manufactured separately so that the valve cavity 210 and the first and second ports 221, 222 are formed separately.

[0042] In some embodiments, the first port 221 and the second port 222 are perpendicular. The second port 222 is connected to the clutch via the corresponding pipeline 300. The first port 221 can be connected to the air source. The perpendicularity between the first port 221 and the second port 222 facilitates the connection of the first port 221 and the second port 222 to the corresponding components. In addition, the valve seat 200a is also used for the assembly of the solenoid valve 200, that is, the solenoid valve 200 is mounted on the housing 100 via the valve seat 200a.

[0043] In some embodiments, the housing 100 includes a crankcase 100a for accommodating the crankshaft of the air compressor, and the solenoid valve 200 is mounted on the crankcase 100a. The edge of the crankcase 100a and the valve seat 200a can be provided with matching mounting holes 260, and the solenoid valve 200 can be installed using the mounting holes 260 and mounting members such as bolts and pins.

[0044] The present invention also provides an air compressor system, comprising an air compressor assembly, an air handling unit and an air storage cylinder connected in sequence, and an electronic control unit and a pressure sensor electrically connected, wherein: Figures 1 to 7 As shown, the air compressor assembly is the clutch air compressor assembly described in any of the above embodiments. The solenoid valve 200 of the clutch air compressor assembly is connected to the electronic control unit, and the first interface 221 of the solenoid valve 200 is connected to the air reservoir.

[0045] During operation of the air compressor system, a pressure sensor collects system pressure in real time and feeds it back to the electronic control unit. When the system pressure drops to the pressure threshold required for inflation, the electronic control unit sends an electrical signal to the solenoid valve 200, causing the valve core 211 to move, shutting off the connection between the first port 221 and the valve chamber 210 and connecting the second port 222 through the valve chamber 210 to the exhaust passage 212. This allows the gas in the clutch chamber to be discharged through the response pipeline 300, the second port 222, the valve chamber 210, and the exhaust passage 212, thereby engaging the clutch and inflating the air compressor. The resulting compressed gas is filtered by the air handling unit and stored in the air reservoir. When the system pressure rises to the pressure threshold required for unloading, the electronic control unit sends an electrical signal to the solenoid valve 200, causing the valve core 211 to move, shutting off the connection between the exhaust passage 212 and the valve chamber 210 and connecting the first port 221 and the second port 222 through the valve chamber 210. In this way, the gas in the air reservoir is transported to the clutch chamber via the first interface 221 → the valve chamber 210 → the second interface 222 → the channel of the response pipeline 300, so that the clutch is disengaged and the air compressor is unloaded.

[0046] The present invention uses a solenoid valve 200 to efficiently and stably control the engagement and disengagement of the clutch based on an electrical signal, overcoming the slow response associated with control using a pneumatic control signal and a mechanical spring-structured unloading valve. This allows for efficient and stable control of the clutch and air compressor, while simplifying the structure of an air handling unit that previously included an unloading valve. Furthermore, the solenoid valve 200 is integrated with the air compressor, forming a single assembly. This shortens the layout of the response line 300, which is now routed only around a portion of the housing 100. This significantly improves the clutch's response speed and enables efficient control of the air compressor.

[0047] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A clutch air compressor assembly integrated with a solenoid valve, comprising an air compressor and a clutch disposed in a housing of the air compressor, characterized in that: Also includes: a solenoid valve integrally assembled with the housing, the solenoid valve comprising a valve core and an exhaust passage disposed in a valve cavity, and a first interface and a second interface communicating with the valve cavity, the second interface being connected to the clutch via a response pipeline disposed partially around the housing; As the valve core moves, the first interface and the second interface are communicated with each other through the valve cavity, or the second interface is communicated with the exhaust channel through the valve cavity.

2. The clutch air compressor assembly according to claim 1, characterized in that: In the first state of the solenoid valve, the valve core cuts off the communication between the first interface and the valve cavity, and enables the second interface to communicate with the exhaust channel through the valve cavity; In the second state of the solenoid valve, the valve core cuts off the communication between the exhaust passage and the valve cavity, and enables the first port and the second port to communicate through the valve cavity.

3. The clutch air compressor assembly according to claim 2, characterized in that: The first state is a power-off state of the solenoid valve, and the second state is a power-on state of the solenoid valve.

4. The clutch air compressor assembly according to claim 2, characterized in that: The valve core is formed as a cylindrical valve core, a first end of the valve core is used to cooperate with the first interface, and a second end of the valve core is used to cooperate with the exhaust channel.

5. The clutch air compressor assembly according to claim 2, characterized in that: A gas flow channel communicating with the valve cavity and the exhaust channel is left between the valve core and the valve cavity, or a gas flow channel communicating with the valve cavity and the exhaust channel is opened in the valve core.

6. The clutch air compressor assembly according to claim 1, characterized in that: The solenoid valve includes a valve body and a valve seat connected to each other. The valve cavity is arranged in the valve body, and the first interface and the second interface are arranged on the valve seat.

7. The clutch air compressor assembly according to claim 6, characterized in that: The first interface is perpendicular to the second interface.

8. The clutch air compressor assembly according to claim 6, characterized in that: The solenoid valve is mounted on the housing via the valve seat.

9. The clutch air compressor assembly according to claim 1, characterized in that: The housing includes a crankcase for accommodating a crankshaft of the air compressor, and the solenoid valve is mounted on the crankcase.

10. An air compressor system comprising an air compressor assembly, an air handling unit, and an air reservoir connected in sequence, and an electronic control unit and a pressure sensor electrically connected, characterized in that: The air compressor assembly is the clutch air compressor assembly according to any one of claims 1 to 9, the solenoid valve of the clutch air compressor assembly is connected to the electronic control unit, and the first interface of the solenoid valve is connected to the air reservoir.

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