CN113306506A - High-voltage electric controller and operation machine - Google Patents

Abstract

The invention provides a high-voltage electric controller and an operation machine, wherein the high-voltage electric controller comprises: a plurality of high voltage components integrally arranged as follows: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter and a high-voltage electric distribution box; the high-voltage electric controller is also integrated with at least one of the following high-voltage components: and a motor controller and a power battery distribution box are arranged on the frame. According to the high-voltage electric controller and the operation machine provided by the invention, at least one of the main drive motor controller, the oil pump motor controller, the air pump motor controller, the direct-current converter, the high-voltage electric distribution box and the upper motor controller or the power battery distribution box is integrated, so that the arrangement space of the high-voltage electric control part of the whole vehicle is more compact, the radiation interference source of the battery of the whole vehicle is reduced, the electromagnetic compatibility design difficulty of the whole vehicle is reduced, the installation support of the high-voltage part of the whole vehicle and the connection of a high-voltage wire harness are reduced, and the weight and cost reduction of the whole vehicle are realized.

Description

High-voltage electric controller and operation machine

Technical Field

The invention relates to the technical field of new energy vehicles, in particular to a high-voltage electric controller and an operation machine.

Background

At present, controllers of all motors and other functional modules are generally integrated inside a new energy vehicle and are arranged in a box to form an all-in-one high-voltage electric controller.

The high-voltage electric controllers which are mainstream in the market all adopt a four-in-one integration mode, namely, the high-voltage electric controllers are formed by integrating a Power-assisted steering oil pump motor controller (for short, an oil pump motor controller), a brake Power-assisted air pump motor controller (for short, an air pump motor controller), a 24V step-down direct current converter (for short, DC-DC) and a high-voltage electric Distribution box (Power Distribution Unit, PDU); the part adopts the five-in-one integrated mode, namely, a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter and a PDU (Power distribution Unit) are integrated into a high-voltage electric controller.

However, due to the adoption of the integration mode in the scheme, a plurality of high-voltage components are still arranged in a split mode, so that the defects of more high-voltage connecting wire harnesses, non-compact whole vehicle arrangement, more mounting brackets and the like still exist.

In view of this, it is demanded to further improve the layout of the high-voltage electric control components inside the new energy vehicle.

Disclosure of Invention

The embodiment of the invention provides a high-voltage electric controller, which is used for solving the defects that in the prior art, high-voltage components occupy more space and high-voltage wire harnesses and water ways are difficult to arrange, and realizing high integration of each high-voltage electric control component in a new energy vehicle.

In a first aspect, the present invention provides a high voltage electrical controller, including: a plurality of high voltage components integrally arranged as follows: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter and a high-voltage electric distribution box; the high-voltage electric controller also comprises at least one of the following high-voltage components: and a motor controller and a power battery distribution box are arranged on the frame.

According to the high-voltage electric controller provided by the invention, the high-voltage electric distribution box is internally provided with: a first switch and a second switch; the first switch is used for controlling the on-off between the main drive motor controller and a power supply line; the second switch is used for simultaneously controlling the on-off of the oil pump motor controller, the air pump motor controller and the direct current converter and the power supply circuit; the high-voltage electric controller further comprises a motor controller which is arranged on the high-voltage electric distribution box, and the high-voltage electric distribution box is also internally provided with: a third switch; and the third switch is used for controlling the on-off between the upper motor controller and the power supply line.

According to the invention, the high-voltage electric controller further comprises: a first interface corresponding to the main drive motor controller, a second interface corresponding to the oil pump motor controller, a third interface corresponding to the direct current converter, and a seventh interface corresponding to the air pump motor controller; under the condition that the high-voltage component further comprises an upper motor controller, the high-voltage electric controller further comprises: a fourth interface corresponding to the upper motor controller.

According to the invention, the high-voltage electric controller further comprises: the fifth interface is used for connecting the air conditioner controller and the sixth interface is used for connecting the air conditioner heater.

According to the high-voltage electric controller provided by the invention, a fourth switch and a fifth switch are further arranged in the high-voltage electric distribution box; the fourth switch is used for controlling the connection and disconnection between the fifth interface and the power supply circuit; and the fifth switch is used for controlling the connection and disconnection between the sixth interface and the power supply circuit.

According to the high-voltage electric controller provided by the invention, the second switch is also used for controlling the connection and disconnection between the fifth interface and the power supply line and between the sixth interface and the power supply line.

According to the high-voltage electric controller provided by the invention, the power battery distribution box comprises: a set of power battery interfaces; the power battery is connected with a power supply circuit through the power battery interface; a current detector is provided on the power supply line.

According to the high-voltage electric controller provided by the invention, the power battery distribution box comprises: at least one group of charging seat interfaces and a sixth switch corresponding to the charging seat interfaces; and the sixth switch is used for controlling the connection and disconnection between the charging seat interface and the power supply circuit.

According to the high-voltage electric controller provided by the invention, the power battery distribution box comprises: a set of battery heater interfaces, and a seventh switch corresponding to the battery heater interfaces; and the seventh switch is used for controlling the connection and disconnection between the battery heater interface and a power supply line.

According to the high-voltage electric controller provided by the invention, a high-voltage detection plate is arranged in the power battery distribution box; the high-voltage detection board is integrated with at least one of the following components: high-voltage insulation detection circuit, relay on-off control circuit, relay adhesion detection circuit.

According to the high-voltage electric controller provided by the invention, the high-voltage electric distribution box is also internally provided with: a first soft start device connected in parallel with the first switch; the first soft starting device comprises an eighth switch and a first resistor which are connected in series; a second soft start device connected in parallel with the second switch; the second soft start device comprises a ninth switch and a second resistor which are connected in series; a third soft start device connected in parallel with the third switch; the third soft start device comprises a tenth switch and a third resistor which are connected in series.

In a second aspect, the present disclosure provides a working machine, which includes at least any one of the above high voltage controllers.

In one embodiment, in the case that the working machine is a pure electric mixer vehicle or a fuel electric mixer vehicle, the high-voltage component of the high-voltage electric controller includes: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter, a high-voltage electric distribution box, an upper motor controller and a power battery distribution box.

In one embodiment, in the case that the working machine is a swap mixer, the high-voltage component of the high-voltage electric controller includes: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter, a high-voltage electric distribution box and an upper motor controller.

In one embodiment, in the case that the working machine is a pure electric dump truck or a fuel electric dump truck, the high-voltage component of the high-voltage electric controller includes: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter, a high-voltage electric distribution box and a power battery distribution box.

According to the high-voltage electric controller and the operation machine provided by the invention, at least one of the main drive motor controller, the oil pump motor controller, the air pump motor controller, the direct-current converter, the high-voltage electric distribution box and the upper motor controller or the power battery distribution box is integrated, so that the arrangement space of the high-voltage electric control part of the whole vehicle is more compact, the radiation interference source of the battery of the whole vehicle is reduced, the electromagnetic compatibility design difficulty of the whole vehicle is reduced, the installation support of the high-voltage part of the whole vehicle and the connection of a high-voltage wire harness are reduced, and the weight and cost reduction of the whole vehicle are realized.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is one of schematic structural diagrams of a high-voltage electric controller provided by the present invention;

FIG. 2 is a second schematic structural diagram of a high voltage controller provided by the present invention;

FIG. 3 is a third schematic structural diagram of a high voltage controller provided by the present invention;

FIG. 4 is a fourth schematic structural diagram of the high voltage controller provided by the present invention;

FIG. 5 is a fifth schematic structural view of the high voltage controller provided by the present invention;

fig. 6 is a sixth schematic structural view of the high-voltage electric controller provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced items or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one.

In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In addition, the "switch" appearing in the present invention may be a relay switch, a breaker switch, a thermorelay switch, and may be configured appropriately according to actual use scenes.

Because the existing four-in-one high-voltage electric controller or five-in-one high-voltage electric controller generally has the following defects:

1. the arrangement of high-voltage components is relatively dispersed, and the electromagnetic Compatibility (EMC) design of the whole vehicle is relatively difficult;

2. the installation of each discrete high-voltage component results in many mounting brackets, high cost and heavy weight;

3. high-voltage components such as a power Battery distribution Box (BDU), an upper motor controller and the like occupy more space in the whole vehicle arrangement, so that the difficulty in arranging a high-voltage wire harness and a water path is caused;

4. the cost of the connecting wire harness between the BDU and the high-voltage electric controller is high.

Therefore, the invention provides a new high-voltage electric controller and a working machine comprising the same, and the application requirements of new energy vehicles on light weight and integration are better met by further optimizing the integration scheme of the high-voltage electric controller.

The high-voltage electric controller and the working machine provided by the invention are described in the following with reference to fig. 1-6.

Fig. 1 is a schematic structural diagram of a high voltage controller provided in the present invention, as shown in fig. 1, including but not limited to the following multiple integrally disposed high voltage components: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter and a PDU (protocol data unit); the high-voltage electric controller also comprises at least one of the following high-voltage components: and a motor controller and a BDU are arranged on the device.

For example: the high-voltage electric controller shown in fig. 1 integrates seven high-voltage components, which are respectively: the system comprises a main drive motor controller (main drive electric control for short), an upper motor controller (upper electric control for short), an oil pump motor controller (oil pump controller for short), an air pump motor controller (air pump controller for short), a direct current converter (DC-DC for short), a BDU and a PDU.

The BDU is mainly used to implement functions such as dc charging power distribution, thermistor-type battery heater (PTC) power distribution, and main circuit power distribution. Wherein, above-mentioned distribution function homoenergetic supports multichannel expansion.

In addition, the PDU is mainly used to realize on-off control between the power supply line and high-voltage components such as the main drive motor controller, the upper motor controller, the air conditioner compressor, the PTC, the oil pump motor controller, the air pump motor controller, and the dc converter, so as to realize the power distribution function of the high-voltage motor of the entire vehicle such as the air conditioner compressor, the PTC, the main drive motor, the oil pump motor, and the air pump motor.

It should be noted that the high-voltage electric controller shown in fig. 1 is only a specific embodiment provided by the present invention, and the power distribution requirement of the PDU may be reasonably adapted according to the power distribution requirement of the high-voltage electric appliance of the entire vehicle.

The high-voltage electric controller provided by the invention integrates the power distribution function of the PDU, so that the problem that the current high-voltage wire harnesses are more can be effectively solved.

Fig. 2 is a second schematic structural diagram of the high-voltage electric controller provided in the present invention, as shown in fig. 2, as an alternative embodiment, compared with the high-voltage electric controller shown in fig. 1, the provided high-voltage electric controller only integrates six high-voltage components, which are respectively: main drive electric control, upper electric control, oil pump controller, air pump controller, DC-DC and PDU.

On the basis of the embodiment, the high-voltage electric controller provided by the invention integrates the main drive motor controller and the upper motor controller, so that the radiation interference source of a whole vehicle battery can be effectively reduced, and the EMC design difficulty of the whole vehicle is reduced.

Fig. 3 is a third schematic structural diagram of the high-voltage electric controller provided in the present invention, as shown in fig. 3, as an alternative embodiment, compared with the high-voltage electric controller shown in fig. 1, the provided high-voltage electric controller only integrates six high-voltage components, which are respectively: the system comprises a main drive electronic control unit, an oil pump controller, an air pump controller, a DC-DC unit, a BDU and a PDU.

It should be noted that the high-voltage electric controller provided by the invention can be adapted to different vehicle type requirements by selectively integrating the upper motor controller or the BDU.

According to the high-voltage electric controller provided by the invention, at least one of the main drive motor controller, the oil pump motor controller, the air pump motor controller, the direct current converter, the high-voltage electric distribution box and the upper motor controller or the power battery distribution box is integrated, so that the arrangement space of a high-voltage electric control part of the whole vehicle is more compact, the radiation interference source of a battery of the whole vehicle is reduced, the electromagnetic compatibility design difficulty of the whole vehicle is reduced, meanwhile, the installation support of a high-voltage part of the whole vehicle and the connection of a high-voltage wire harness are reduced, and the weight reduction and cost reduction of the whole vehicle are realized.

Based on the content of the foregoing embodiment, as an optional embodiment, the PDU is provided with: a first switch and a second switch; the first switch is used for controlling the on-off between the main drive motor controller and a power supply line; the second switch is used for simultaneously controlling the oil pump motor controller, the air pump motor controller and the direct current converter and is connected with the power supply line; the high-voltage electric controller further comprises a motor controller which is arranged on the high-voltage electric distribution box, and the high-voltage electric distribution box is also internally provided with: and the third switch is used for controlling the on-off of the upper motor controller and the power supply line.

Taking the high-voltage electric controller shown in fig. 1 as an example, a first switch KM7 is arranged in the PDU, and the on-off between the main drive motor controller and the power supply line can be controlled by controlling the on-off of the first switch KM 7.

The positive electrode and the negative electrode of the power supply circuit are respectively connected with the battery input positive electrode and the battery input negative electrode of the power battery.

A second switch KM9 is also arranged in the PDU, and the on-off of the second switch KM9 can be controlled, and the on-off of an oil pump motor controller, an air pump motor controller, a direct current converter and a power supply line can be controlled.

A third switch KM13 is further arranged in the PDU, and the on-off between the upper motor controller and a power supply line can be controlled by controlling the on-off of the third switch KM 13.

The high-voltage electric controller provided by the invention is reasonably provided with a plurality of independent switches according to the electric control requirement so as to realize independent control on different electric control requirements, and can ensure that the normal work of other loops is not influenced by cutting off the corresponding switch under the condition that any loop has a fault. For example, in the case of the main drive control being damaged, the normal power supply of other high-voltage components can be ensured by switching off the first switch KM 7.

Based on the content of the above embodiment, as an optional embodiment, the high voltage controller provided by the present invention further includes: a first interface corresponding to the main drive motor controller, a second interface corresponding to the oil pump motor controller, a third interface corresponding to the direct current converter, and a seventh interface corresponding to the air pump motor controller; under the condition that the high-voltage electric controller further comprises an upper motor controller, the high-voltage electric controller further comprises: a fourth interface corresponding to the upper motor controller.

Particularly, the high-voltage electric controller provided by the invention is convenient for the integrated high-voltage components to be quickly, conveniently and safely electrically connected with high-voltage electric devices such as external motors and the like through arranging different interfaces, and is also convenient for the maintenance and replacement of high-voltage electric appliances.

The first interface is used for being directly connected with a main drive motor controller of a main drive motor; the second interface is used for directly connecting an air pump motor controller of the oil pump motor; the seventh interface is used for directly controlling an air pump motor controller of the air pump motor. Each interface can provide power for the corresponding high-voltage electrical appliance and can also be used for transmitting the operating parameters of the corresponding high-voltage electrical appliance.

Taking the example that the first interface is connected with the main drive motor controller, the high-voltage electric controller provided by the invention can provide power for the main drive motor controller through the first interface on one hand, and can acquire relevant operating parameters of the main drive motor through the first interface on the other hand, such as: operating current, rotational speed, motor temperature, etc., and the present invention is not particularly limited thereto.

Optionally, an aviation connector can be used between each interface and the corresponding high-voltage electrical appliance, but is not limited to the use.

Based on the content of the above embodiment, as an optional embodiment, the high voltage controller provided by the present invention further includes: the fifth interface is used for connecting the air conditioner controller and the sixth interface is used for connecting the air conditioner heater.

And a fifth interface and a sixth interface are preset as a high-voltage electric controller applied to the new energy operation machinery.

The fifth interface is used for being electrically connected with the air conditioner controller so as to distribute power to the air conditioner controller. The air conditioner controller is mainly used for controlling the working state of the air conditioner compressor so as to provide a refrigerating function.

The sixth interface is used for electrically connecting the PTC to provide the air-conditioning and heating functions.

The high-voltage electric controller provided by the invention realizes the control of the refrigeration and heating of the whole vehicle air conditioner by integrally connecting the air conditioner heater and the PTC interface, further reduces the layout of the whole vehicle wire harness, and makes the layout space of the whole vehicle high-voltage electric control part more compact.

Based on the content of the above embodiment, as an optional embodiment, a fourth switch and a fifth switch are further arranged in the high-voltage electrical distribution box; the fourth switch is used for controlling the connection and disconnection between the fifth interface and the power supply circuit; and the fifth switch is used for controlling the connection and disconnection between the sixth interface and the power supply circuit.

By taking the high-voltage electric controller shown in fig. 1 as an example, the fourth switch KM10 and the fifth switch KM11 are additionally arranged, so that the on-off of the air-conditioning compressor can be controlled by independently controlling the on-off of the fourth switch KM10 and controlling the on-off of the air-conditioning controller and a power supply line, and the purpose of controlling the operation of the air-conditioning compressor can be realized; meanwhile, the on-off of the fifth switch KM11 can be independently controlled, the on-off of the PTC and a power supply circuit is controlled, and the purpose of controlling the heating of the air conditioner can be achieved.

Based on the content of the foregoing embodiment, as another optional embodiment, the second switch is further configured to control on/off between the fifth interface and the power supply line, and between the sixth interface and the power supply line.

Fig. 4 is a fourth schematic structural diagram of the high-voltage electric controller provided by the invention, as shown in fig. 4, the invention utilizes a second switch KM7 to realize synchronous and unified control of on-off between the oil pump controller, the air pump controller, the DC-DC, the air conditioner controller and the PTC and the power supply line, but the mode of independently controlling the upper motor controller and the main drive electric controller can effectively reduce the power distribution cost, and the control strategy is simpler.

Based on the content of the above embodiments, as an alternative embodiment, the BDU includes: a set of power battery interfaces; the power battery is connected with a power supply circuit through the power battery interface; a current detector is provided on the power supply line.

Taking the high-voltage electric controller shown in fig. 1 as an example, only one set of power battery interfaces is arranged on the BDU, which is not considered as a specific limitation to the protection scope of the present invention, and the number of loops on the BDU for implementing the battery input connection may be adapted according to the number of the actual power battery packs.

It should be noted that the current detector may be integrated into the BDU to further reduce the wiring harness connections.

Based on the content of the above embodiments, as an alternative embodiment, the BDU includes: at least one group of charging seat interfaces and a sixth switch corresponding to the charging seat interfaces; and the sixth switch is used for controlling the connection and disconnection between the charging seat interface and the power supply circuit.

Taking the high-voltage electric controller shown in fig. 1 as an example, the BDU is preset with two groups of charging seat interfaces, which are respectively used for connecting the charging seat 1 and the charging seat 2, and are respectively and correspondingly provided with switches for controlling on-off between each group of charging seat interfaces and a power supply line, so that when any charging seat fails (or an external device connected to the charging seat fails), the charging seat interfaces are timely cut off, and thus normal operation of other high-voltage components is not affected.

For example: under the condition that the charging socket interface is connected with the charging socket 1, the sixth switches are KM1 and KM2, which respectively control the output of the positive output terminal and the negative output terminal of the charging socket 1.

Correspondingly, in the case that the cradle interface is connected to the cradle 2, the sixth switches are KM3 and KM4, which respectively control the outputs of the positive output terminal and the negative output terminal of the cradle 2.

The high-voltage electric controller provided by the invention can further reduce the radiation interference source of the battery of the whole vehicle, reduce the electromagnetic compatibility design difficulty of the whole vehicle, reduce the connection of high-voltage wire harnesses and realize the weight reduction and cost reduction of the whole vehicle by integrating the charging seat interface.

Based on the content of the foregoing embodiment, as an optional embodiment, the BDU further includes a set of battery heater interfaces thereon, and a seventh switch corresponding to the battery heater interfaces; and the seventh switch is used for controlling the connection and disconnection between the battery heater interface and a power supply line.

Taking the high-voltage electric controller shown in fig. 1 as an example, the BDU is integrated with the battery heater interface, so that power distribution is conveniently and quickly provided for the battery heater, the arrangement space of the high-voltage electric control part of the whole vehicle can be further compact, and the connection of high-voltage wiring harnesses is reduced.

Meanwhile, the seventh switch KM13 is added to control the connection and disconnection between the battery heater interface and the power supply line.

In addition, in order to ensure the safe control of the on-off of the battery heater, the invention is also additionally provided with a switch KM14 to be matched with a seventh switch KM13, so as to realize the on-off control between the battery heater interface and a power supply line. The seventh switch KM13 and the switch KM14 control the positive and negative input terminals of the battery heater, respectively.

It should be noted that, the present invention does not specifically limit how to implement the on/off control logic of each switch, and the configuration of the corresponding control method according to the actual operation requirement is considered as the actual protection scope of the present invention.

Based on the content of the above embodiment, as an alternative embodiment, a high-voltage detection board is arranged in the BDU; the high-voltage detection board is integrated with at least one of the following components: high-voltage insulation detection circuit, relay on-off control circuit, relay adhesion detection circuit.

Particularly, the high-voltage electric controller provided by the invention is internally integrated with the BDU, and the BDU has the functions of distributing power for other high-voltage electric appliances of the whole vehicle such as an air conditioner compressor, a PTC (positive temperature coefficient), a main drive motor, an oil pump motor, an air pump motor and the like, and can synchronously realize the functions of high-voltage insulation detection, relay on-off control, relay adhesion detection and the like due to the integration of the high-voltage detection plate.

The voltage insulation detection, the relay on-off control and the relay adhesion detection can be realized by different functional circuits, and the invention is not particularly limited.

According to the high-voltage electric controller provided by the invention, the high-voltage detection plate is arranged in the BDU in the high-voltage electric controller, so that the safety monitoring of the high-voltage electric control of the whole vehicle can be realized, and the safety performance of the whole vehicle equipment is effectively improved.

Based on the content of the foregoing embodiment, as an optional embodiment, the PDU is further provided with: a first soft start device connected in parallel with the first switch; the first soft starting device comprises an eighth switch and a first resistor which are connected in series; a second soft start device connected in parallel with the second switch; the second soft start device comprises a ninth switch and a second resistor which are connected in series; a third soft start device connected in parallel with the third switch; the third soft start device comprises a tenth switch and a third resistor which are connected in series.

Taking the high-voltage electric controller shown in fig. 1 as an example, because the power of the main drive motor, the oil pump motor, the air pump motor and the upper motor is high, and a large impact is generated on the whole power supply line when the high-voltage electric controller is started, the high-voltage electric controller provided by the invention reduces the impact of the starting current by connecting a starting device in parallel to each switch.

Taking a master motor as an example, the invention connects a first soft start device in parallel to the first switch KM7, wherein the first soft start device is composed of an eighth switch KM6 and a first resistor R1 connected in series.

In the process of starting the master control motor, the eighth switch KM6 is firstly closed (at this time, the first switch KM7 is opened), and after the preset time length and the current on the power supply line detected by the current detector is stable, the first switch KM7 is closed; then, the eighth switch KM6 is turned off.

Similarly, the soft start is carried out on the switches corresponding to other high-voltage electrical appliances by adopting the mode.

For example, the invention connects a second soft start device in parallel with the second switch KM9, wherein the second soft start device is composed of a ninth switch KM8 and a first resistor R2 connected in series. In the process of starting the oil pump motor, the air pump motor and the DC-DC, the ninth switch KM8 is firstly closed (at the moment, the second switch KM9 is disconnected), and after the preset time, the current on the power supply line detected by the current detector is stable, the second switch KM9 is closed; then, the ninth switch KM8 is opened.

For another example, the present invention connects a second soft start device in parallel with the third switch KM13, wherein the second soft start device is composed of a tenth switch KM12 and a first resistor R3 connected in series. In the process of starting the upper-mounted motor, the tenth switch KM12 is firstly closed (at this time, the third switch KM13 is opened), and after the preset time length and the current on the power supply line detected by the current detector is stable, the third switch KM13 is closed; then, the tenth switch KM12 is turned off.

According to the high-voltage electric controller provided by the invention, the soft start device is configured for each switch in the PDU, so that the high-voltage electric controller can be effectively protected, the damage to a power supply line and other high-voltage components due to overlarge starting current is prevented, and the safety performance of equipment is effectively improved.

Based on the content of the above embodiments, the present invention further provides a working machine, where the working machine at least includes the high-voltage electric controller provided in any one of the above embodiments.

As an alternative embodiment, as shown in fig. 1 or 4, in the case that the type of the working machine is a pure electric mixer vehicle or a fuel electric mixer vehicle, the high-voltage electric controller is a seven-in-one high-voltage electric controller, and the high-voltage components of the seven-in-one high-voltage electric controller mainly include: the system comprises a main drive motor controller (namely a main drive electric controller), an oil pump motor controller (namely an oil pump controller), an air pump motor controller (namely an air pump controller), a direct current converter (namely DC-DC), a high-voltage electric distribution box (namely PDU), an upper motor controller (namely an upper electric controller) and a power battery distribution box (namely a BDU).

According to the operation machine provided by the invention, the main drive motor controller, the oil pump motor controller, the air pump motor controller, the direct current converter, the high-voltage electric distribution box, the upper motor controller and the power battery distribution box are integrated to form the seven-in-one high-voltage electric controller, so that the arrangement space of a high-voltage electric control part of the whole vehicle is more compact, a radiation interference source of a battery of the whole vehicle is reduced, the electromagnetic compatibility design difficulty of the whole vehicle is reduced, meanwhile, the installation support of the high-voltage part of the whole vehicle and the connection of a high-voltage wire harness are reduced, and the weight reduction and cost reduction of the whole vehicle are realized.

As an alternative embodiment, as shown in fig. 2, when the type of the working machine is a hybrid electric mixer, the high-voltage electric controller is a six-in-one high-voltage electric controller, and the high-voltage components of the six-in-one high-voltage electric controller mainly include: the main drive electric control system comprises a main drive electric control system, an oil pump controller, an air pump controller, a DC-DC (direct current-direct current), a PDU (protocol data unit) and a top-loading electric control system.

It should be noted that, because the BDU and the battery replacement assembly seat of the battery replacement type work machine are integrated, the BDU does not need to be integrated into a high-voltage power controller.

In addition, under the condition that the operation machine is a battery replacing mixer truck, a battery heater and a charging seat interface do not need to be integrated in the high-voltage electric controller.

According to the operation machine provided by the invention, the main drive motor controller, the oil pump motor controller, the air pump motor controller, the direct current converter, the high-voltage electric distribution box and the upper motor controller are integrated to form the six-in-one high-voltage electric controller, so that the arrangement space of a high-voltage electric control part of the whole vehicle is more compact, the radiation interference source of a battery of the whole vehicle is reduced, the electromagnetic compatibility design difficulty of the whole vehicle is reduced, meanwhile, the installation support of the high-voltage part of the whole vehicle and the connection of a high-voltage wire harness are reduced, and the weight and cost reduction of the whole vehicle are realized.

As another alternative embodiment, as shown in fig. 3, when the type of the working machine is a dump truck, specifically, a pure electric dump truck or a gas electric dump truck, the high-voltage electric controller is a six-in-one high-voltage electric controller, and the high-voltage parts mainly include: the system comprises a main drive electronic control unit, an oil pump controller, an air pump controller, a DC-DC unit, a PDU unit and a BDU unit.

According to the operation machine provided by the invention, the main drive motor controller, the oil pump motor controller, the air pump motor controller, the direct current converter, the high-voltage electric distribution box and the power battery are distributed and integrated to form the six-in-one high-voltage electric controller, so that the arrangement space of a high-voltage electric control part of the whole vehicle is more compact, the radiation interference source of a battery of the whole vehicle is reduced, the electromagnetic compatibility design difficulty of the whole vehicle is reduced, meanwhile, the installation support of a high-voltage part of the whole vehicle and the connection of a high-voltage wire harness are reduced, and the weight and cost reduction of the whole vehicle are realized.

Fig. 5 is a fifth schematic structural view of the high-voltage electric controller provided in the present invention, as shown in fig. 5, in the case that it is determined that the type of the working machine is a swap dumper, the high-voltage electric controller is a five-in-one high-voltage electric controller, and high-voltage components thereof mainly include: the main drive electric control system comprises a main drive electric control system, an oil pump controller, an air pump controller, a DC-DC system and a PDU.

Fig. 6 is a sixth schematic structural view of the high-voltage electric controller provided by the present invention, as shown in fig. 6, as another alternative embodiment, when the type of the working machine is a fuel-cell type, and the fuel cell is connected to the high-voltage electric controller provided by any of the above embodiments through a set of fuel cell interfaces, it is only necessary to connect at least one fuse P9 in series at the positive and negative connection ends, and automatically fuse the fuse P9 when a large current such as a short circuit occurs in the fuel cell circuit, so as to ensure the safety of the entire power supply line in the high-voltage electric controller.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (15)

1. The high-voltage electric controller is characterized by comprising a plurality of high-voltage components which are integrally arranged as follows: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter and a high-voltage electric distribution box;

the high-voltage electric controller is also integrated with at least one of the following high-voltage components: and a motor controller and a power battery distribution box are arranged on the frame.

2. The high voltage electrical controller according to claim 1, wherein disposed within the high voltage electrical distribution box are: a first switch and a second switch;

the first switch is used for controlling the on-off between the main drive motor controller and a power supply line;

the second switch is used for simultaneously controlling the on-off of the oil pump motor controller, the air pump motor controller and the direct current converter and the power supply circuit;

the high-voltage electric controller further comprises a motor controller which is arranged on the high-voltage electric distribution box, and the high-voltage electric distribution box is also internally provided with: a third switch; and the third switch is used for controlling the on-off between the upper motor controller and the power supply line.

3. The high voltage electric controller according to claim 2, further comprising: a first interface corresponding to the main drive motor controller, a second interface corresponding to the oil pump motor controller, a third interface corresponding to the direct current converter, and a seventh interface corresponding to the air pump motor controller;

under the condition that the high-voltage electric controller further comprises an upper motor controller, the high-voltage electric controller further comprises: a fourth interface corresponding to the upper motor controller.

4. The high voltage electric controller according to claim 3, further comprising: the fifth interface is used for connecting the air conditioner controller, and the sixth interface is used for connecting the air conditioner heater.

5. The high-voltage electric controller according to claim 4, wherein a fourth switch and a fifth switch are further arranged in the high-voltage electric distribution box;

the fourth switch is used for controlling the connection and disconnection between the fifth interface and the power supply circuit;

and the fifth switch is used for controlling the connection and disconnection between the sixth interface and the power supply circuit.

6. The high-voltage electric controller according to claim 4, wherein the second switch is further configured to control on/off between the fifth interface and the power supply line and between the sixth interface and the power supply line.

7. The high voltage electric controller according to claim 1, wherein the power battery distribution box comprises: a set of power battery interfaces;

the power battery is connected with a power supply circuit through the power battery interface;

a current detector is provided on the power supply line.

8. The high voltage electric controller according to claim 1, wherein the power battery distribution box comprises: at least one group of charging seat interfaces and a sixth switch corresponding to the charging seat interfaces;

and the sixth switch is used for controlling the connection and disconnection between the charging seat interface and the power supply circuit.

9. The high voltage electric controller according to claim 1, wherein the power battery distribution box comprises: a set of battery heater interfaces, and a seventh switch corresponding to the battery heater interfaces;

and the seventh switch is used for controlling the connection and disconnection between the battery heater interface and a power supply line.

10. The high voltage electric controller according to claim 1, wherein a high voltage detection board is arranged in the power battery distribution box;

the high-voltage detection board is integrated with at least one of the following components: high-voltage insulation detection circuit, relay on-off control circuit, relay adhesion detection circuit.

11. The high-voltage electric controller according to claim 2, wherein, further provided in the high-voltage electric distribution box are:

a first soft start device connected in parallel with the first switch; the first soft starting device comprises an eighth switch and a first resistor which are connected in series;

a second soft start device connected in parallel with the second switch; the second soft start device comprises a ninth switch and a second resistor which are connected in series;

a third soft start device connected in parallel with the third switch; the third soft start device comprises a tenth switch and a third resistor which are connected in series.

12. A working machine, characterized by comprising at least a high voltage electric controller according to any one of claims 1 to 11.

13. The work machine of claim 12, wherein in the case where the work machine is a pure electric mixer vehicle or a gas electric mixer vehicle, the high voltage components of the high voltage electric controller comprise: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter, a high-voltage electric distribution box, an upper motor controller and a power battery distribution box.

14. The work machine of claim 12, wherein in the case where the work machine is a swap mixer, the high voltage components of the high voltage electrical controller comprise: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter, a high-voltage electric distribution box and an upper motor controller.

15. The working machine according to claim 12, wherein in the case where the working machine is a pure electric dump truck or a fuel electric dump truck, the high-voltage component of the high-voltage electric controller includes: the system comprises a main drive motor controller, an oil pump motor controller, an air pump motor controller, a direct current converter, a high-voltage electric distribution box and a power battery distribution box.

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