CN211592538U - Vacuum pump controller, vehicle-mounted vacuum pump system and electric automobile - Google Patents
Vacuum pump controller, vehicle-mounted vacuum pump system and electric automobile Download PDFInfo
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- CN211592538U CN211592538U CN202020210950.8U CN202020210950U CN211592538U CN 211592538 U CN211592538 U CN 211592538U CN 202020210950 U CN202020210950 U CN 202020210950U CN 211592538 U CN211592538 U CN 211592538U
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Abstract
The utility model provides a vacuum pump controller, on-vehicle vacuum pump system and electric automobile. The vacuum pump controller includes: the first fixed terminal is provided with a first power interface; a second power interface and a second fixed terminal of the data interface are arranged; the power supply output end of the power supply conversion module is connected to the second power supply interface through the second positive bus and the second negative bus; a first capacitor and a second capacitor are connected in parallel between the second positive bus and the second negative bus, and a common-mode inductor is connected in series between the second positive bus and the second negative bus. The embodiment of the utility model discloses a vacuum pump that inside or outside electromagnetic noise of suppression vehicle can be effectual changes the condition often.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to vacuum pump controller, on-vehicle vacuum pump system and electric automobile.
Background
The new energy electric automobile has the advantages of low carbon, environmental protection, high efficiency and the like which are not possessed by the traditional fuel oil vehicle. However, the electric vehicle is composed of a large number of high-voltage and low-voltage electronic components, the space of the vehicle body is narrow and limited, the high-voltage and low-voltage wire harnesses in the electric vehicle are numerous and the wiring is complicated, certain electromagnetic interference can be generated by the high-voltage components when the vehicle runs, and certain influence is generated on the low-voltage components along the high-voltage wire harnesses by interference signals.
Meanwhile, with the development of science and technology, the external electromagnetic environment is more and more complex, and certain influence is also generated on electronic components of the electric automobile. The vehicle-mounted vacuum pump in the prior art is used for braking of a vehicle, and compared with a traditional fuel vehicle, the new energy electric vehicle is additionally provided with an air storage tank and a vacuum pump controller on an original braking system. When the vacuum pump controller is interfered by internal high-voltage components or external complex electromagnetic environment, the vacuum pump can be rotated frequently. Compared with the traditional fuel vehicle, the new energy electric vehicle has the advantages that the vacuum pump is always in the running state due to limited electric energy, and the battery performance of the new energy electric vehicle can be wasted.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a vacuum pump controller, on-vehicle vacuum pump system and electric automobile to when solving vacuum pump controller and receiving inside high-pressure part or outside complicated electromagnetic environment and disturb, the problem that the vacuum pump is in running state always can appear.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an embodiment of the utility model provides a vacuum pump controller, include:
the first fixed terminal is provided with a first power interface;
the second fixed terminal is provided with a second power interface and a data interface;
the power supply output end of the power supply conversion module is connected to the second power supply interface through a second positive bus and a second negative bus;
the pressure sensor is used for detecting the internal pressure of the vacuum pump, the power supply input end of the pressure sensor is connected with the second power supply interface, and the pressure signal output end of the pressure sensor is connected with the data interface;
the analog-to-digital conversion and voltage comparison module is connected to the data interface through a first data line;
the vacuum pump control module receives the voltage comparison result signal sent by the analog-to-digital conversion and voltage comparison module and sends a control signal for controlling the vacuum pump to work to the vacuum pump;
and a common-mode inductor is also connected in series between the second positive bus and the second negative bus.
Furthermore, a magnetic bead is also connected in series on the first data line.
Furthermore, the external power supply of the first power supply interface is a 12V direct current power supply, and the power supply of the second power supply interface is a 5V direct current power supply.
Further, the vacuum pump controller further includes:
and the first fixed terminal and the second fixed terminal are respectively arranged on two opposite side surfaces of the controller shell.
Further, a third power interface is further arranged on the first fixed terminal, and the vacuum pump control module is connected to the third power interface through a third positive bus and a third negative bus.
Furthermore, the power supply externally connected with the third power supply interface is a 12V direct current power supply.
The embodiment of the utility model also provides a vehicle-mounted vacuum pump system, which comprises a storage battery, a vacuum pump and a gas storage tank, wherein the vehicle-mounted vacuum pump system also comprises the vacuum pump controller;
and the 12V direct-current power supply output by the storage battery is respectively connected to the first power interface and the third power interface of the first fixed terminal.
The embodiment of the utility model provides an electric automobile is still provided, include as above on-vehicle vacuum pump system.
The utility model has the advantages that:
the embodiment of the utility model provides a vacuum pump controller, on-vehicle vacuum pump system and electric automobile, through increase differential mode electric capacity, common mode inductance and magnetic bead on the vacuum pump controller, can effectively restrain the interior or the external electromagnetic noise of vehicle and lead to the fact the vacuum pump often to change the condition; install inside the vacuum pump controller simultaneously, do not influence pleasing to the eye still be convenient for install, still promoted electric automobile's quality.
Drawings
Fig. 1 is a schematic structural diagram of a vacuum pump controller according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vehicle-mounted vacuum pump system according to an embodiment of the present invention.
Description of reference numerals:
1-a power conversion module; 2-a first capacitance; 3-a second capacitance; 4-common mode inductance; 5-analog-to-digital conversion and voltage comparison module; 6-a vacuum pump control module; 7-magnetic beads; 8-a first data line; 9-a first positive bus; 10-a first negative bus; 11-a first fixed terminal; 12-a second fixed terminal; 13-a second positive bus; 14-a second negative busbar; 15-a pressure sensor; 16-a third positive bus bar; 17-third negative bus bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. In the following description, specific details are provided, such as specific configurations and components, merely to facilitate a thorough understanding of embodiments of the invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The utility model discloses when receiving inside high-pressure part or outside complicated electromagnetic environment interference to prior art's vacuum pump controller, can appear the vacuum pump and be in running state's problem always, provide a vacuum pump controller, on-vehicle vacuum pump system and electric automobile.
As shown in fig. 1, an embodiment of the present invention provides a vacuum pump controller, including:
the first fixed terminal 11 is provided with a first power interface;
a second fixed terminal 12, wherein a second power interface and a data interface are arranged on the second fixed terminal 12;
the power supply output end of the power supply conversion module 1 is connected to the second power supply interface through a second positive bus 13 and a second negative bus 14;
the pressure sensor 15 is used for detecting the internal pressure of the vacuum pump, the power input end of the pressure sensor 15 is connected with the second power interface, and the pressure signal output end of the pressure sensor 15 is connected with the data interface;
the analog-to-digital conversion and voltage comparison module 5 is connected to the data interface through a first data line 8; the analog-to-digital conversion and voltage comparison module 5 here receives the signal fed back by the pressure sensor 15 and completes the comparison and confirmation of the pressure value, and feeds back the signal to the vacuum pump control module 6.
The vacuum pump control module 6 is used for receiving the voltage comparison result signal sent by the analog-to-digital conversion and voltage comparison module 5 and sending a control signal for controlling the vacuum pump to work to the vacuum pump;
a first capacitor 2 and a second capacitor 3 are connected in parallel between the second positive bus 13 and the second negative bus 14, and a common-mode inductor 4 is also connected in series between the second positive bus 13 and the second negative bus 14.
Here, the first capacitor 2 and the second capacitor 3 of the embodiment of the present invention are respectively connected across the output end of the power conversion module 1, and the first capacitor 2 and the second capacitor 3 are used for filtering out ripples on the output voltage of the power conversion module, and simultaneously play a role in eliminating a differential mode noise signal on the power line of the second positive bus 13; the common mode inductor 4 is used for eliminating a common mode noise signal on a power line of the second positive electrode bus 13; under the combined action of the first capacitor 2, the second capacitor 3 and the common-mode inductor 4, a stable power supply is provided for the pressure sensor 15.
Specifically, a magnetic bead 7 is also connected in series to the first data line 8.
It should be noted that the first data line 8 is a pressure feedback signal line of the pressure sensor 15, that is, a line through which a pressure feedback signal flows through the data interface, and the magnetic bead 7 is connected in series to the first data line 8, and is used to eliminate a noise signal on the first data line 8 and ensure accuracy of a pressure value fed back by the pressure sensor 15.
Specifically, the external power supply of the first power supply interface is a 12V dc power supply, and the power supply of the second power supply interface is a 5V dc power supply.
It should be noted that, the power conversion module 1 is externally connected with a storage battery of a 12V dc power supply, the storage battery is connected with the input end of the power conversion module 1, and after the voltage passes through the power conversion module 1, the voltage is converted into a 5V dc voltage, so as to ensure that the pressure sensor 15 provides a suitable dc voltage source, and thus the pressure sensor can normally work.
Specifically, the vacuum pump controller further includes:
and the first fixed terminal 11 and the second fixed terminal 12 are respectively arranged on two opposite side surfaces of the controller shell.
Further, a third power interface is further disposed on the first fixed terminal 11, and the vacuum pump control module 6 is connected to the third power interface through a third positive bus bar 16 and a third negative bus bar 17. Here, the external power supply of the third power interface is a 12V dc power supply.
It should be noted that, the first fixed terminal 11 and the second fixed terminal 12 may be provided with a plurality of power interfaces, which may be set according to actual requirements, and the power interfaces are hidden inside the fixed terminals to protect cables and internal components thereof; preferably, the first fixing terminal 11 and the second fixing terminal 12 are provided with mounting holes for fixing the vacuum pump controller, so that the vacuum pump controller is more convenient to fix and mount, and the production efficiency is improved.
As also shown in fig. 2, an embodiment of the present invention provides an on-vehicle vacuum pump system, including: a battery 30, a vacuum pump 40 and an air reservoir 50, the on-board vacuum pump system further comprising a vacuum pump controller 20 as described above;
the 12V dc power output by the battery 30 is respectively connected to the first power interface and the third power interface of the first fixed terminal. Here, the vacuum pump 40 is connected to the third power interface of the first fixed terminal through the inside of the vacuum pump controller 20, and a stable input of the 12V dc voltage source thereof is ensured.
It should be noted that, the pressure sensor of the vacuum pump controller 20 detects the internal pressure of the air tank in real time, converts a pressure signal into a voltage signal and feeds the voltage signal back to the vacuum pump controller 20, and when the vacuum pump controller 20 detects that the internal pressure of the air tank 50 is lower than a set value (set according to actual requirements), the vacuum pump controller 20 transmits the signal to the vacuum pump 40 to operate, so as to pump out the redundant air in the air tank, maintain a certain vacuum degree, ensure that the internal pressure value meets the requirement, and enable the vacuum pump to achieve the purpose of braking.
The embodiment of the utility model discloses an embodiment is through using foretell vacuum pump controller 20, has not only avoided inside high-pressure part to receive the vacuum pump controller signal disorder after disturbing, leads to the phenomenon that vacuum pump "changes often" phenomenon to appear, has still avoided the problem that consumes in a large number of electric energy to the battery savings, has promoted on-vehicle vacuum pump system's quality.
An embodiment of the utility model provides an electric automobile, include as above on-vehicle vacuum pump system.
To sum up, the vacuum pump controller, the vehicle-mounted vacuum pump system and the electric vehicle provided by the embodiment of the invention can effectively inhibit the vacuum pump from normally rotating caused by electromagnetic noise inside or outside the vehicle by adding the differential mode capacitor, the common mode inductor and the magnetic beads on the vacuum pump controller; the problem that a large amount of electric energy stored in the battery is consumed is also avoided, and the quality of the automobile is improved.
The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (8)
1. A vacuum pump controller, comprising:
the first fixed terminal (11), there is the first power interface on the said first fixed terminal (11);
the second fixed terminal (12), there are second power interface and data interface on the said second fixed terminal (12);
the power supply output end of the power supply conversion module (1) is connected to the second power supply interface through a second positive bus (13) and a second negative bus (14);
the pressure sensor (15) is used for detecting the internal pressure of the vacuum pump, the power supply input end of the pressure sensor (15) is connected with the second power supply interface, and the pressure signal output end of the pressure sensor (15) is connected with the data interface;
the analog-to-digital conversion and voltage comparison module (5) is connected to the data interface through a first data line (8);
the vacuum pump control module (6) receives the voltage comparison result signal sent by the analog-to-digital conversion and voltage comparison module (5) and sends a control signal for controlling the vacuum pump to work to the vacuum pump;
a first capacitor (2) and a second capacitor (3) are connected in parallel between the second positive bus (13) and the second negative bus (14), and a common-mode inductor (4) is connected in series between the second positive bus (13) and the second negative bus (14).
2. Vacuum pump controller according to claim 1, characterized in that a magnetic bead (7) is connected in series to the first data line (8).
3. The vacuum pump controller according to claim 1, wherein the power supply connected to the first power interface is a 12V dc power supply, and the power supply connected to the second power interface is a 5V dc power supply.
4. The vacuum pump controller according to claim 1, further comprising:
the controller comprises a controller shell, wherein the first fixed terminal (11) and the second fixed terminal (12) are respectively arranged on two opposite side surfaces of the controller shell.
5. A vacuum pump controller according to claim 1, characterized in that a third power supply interface is also provided on the first fixed terminal (11), to which the vacuum pump control module (6) is connected by a third positive busbar (16) and a third negative busbar (17).
6. A vacuum pump controller according to claim 5, wherein the power supply external to the third power supply interface is a 12V DC power supply.
7. An on-board vacuum pump system comprising, a battery (30), a vacuum pump (40) and a gas reservoir (50), the on-board vacuum pump system further comprising a vacuum pump controller (20) according to any one of claims 1 to 6;
and a 12V direct-current power supply output by the storage battery (30) is respectively connected to the first power interface and the third power interface of the first fixed terminal.
8. An electric vehicle comprising the on-board vacuum pump system of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210950.8U CN211592538U (en) | 2020-02-26 | 2020-02-26 | Vacuum pump controller, vehicle-mounted vacuum pump system and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210950.8U CN211592538U (en) | 2020-02-26 | 2020-02-26 | Vacuum pump controller, vehicle-mounted vacuum pump system and electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN211592538U true CN211592538U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020210950.8U Active CN211592538U (en) | 2020-02-26 | 2020-02-26 | Vacuum pump controller, vehicle-mounted vacuum pump system and electric automobile |
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| Country | Link |
|---|---|
| CN (1) | CN211592538U (en) |
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- 2020-02-26 CN CN202020210950.8U patent/CN211592538U/en active Active
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