CN216056415U - Distribution box and power supply system - Google Patents
Distribution box and power supply system Download PDFInfo
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- CN216056415U CN216056415U CN202122339657.9U CN202122339657U CN216056415U CN 216056415 U CN216056415 U CN 216056415U CN 202122339657 U CN202122339657 U CN 202122339657U CN 216056415 U CN216056415 U CN 216056415U
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Abstract
This application generally relates to car technical field, particularly, relates to a block terminal and power supply system, and the block terminal has first circuit, second circuit, first electrically conductive branch road, the electrically conductive branch road of second, first branch road and the second branch road that charges, and the block terminal is installed on the vehicle that has the facial make-up load demand back, makes the vehicle can add the facial make-up battery, and in this application embodiment, first battery includes chassis battery system, the second electricityThe battery comprises a battery system, and a BMS module for collecting the voltage V at the rear end of the second battery0The voltage V at the rear end of the first relay1And voltage V at the back end of the pre-charge module2And through V0And V1And V0And V2The BMS module controls the first relay, the second relay and the third relay to be opened or closed respectively, the first battery or the second battery supplies power to the controller, the first battery and the second battery are mutually supplemented, diversification of power battery electricity supplementing modes is increased, and cruising ability of the engineering truck is improved.
Description
Technical Field
This application generally relates to car technical field, specifically relates to a block terminal and power supply system.
Background
The existing products such as engineering vehicles and sanitation vehicles in the market adopt the function of realizing corresponding vehicle types by additionally arranging an upper part on a second type chassis; however, in the existing refitting engineering vehicle on the market, the upper loading load usually needs a chassis power battery for power supply. As vehicle functions increase, the power load on the vehicle also increases. This will cause more serious influence to the continuation of journey of vehicle, leads to vehicle continuation of journey and operating time shrink.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the technical problem that the vehicle endurance is influenced by the fact that the existing chassis battery supplies power to the upper load and the chassis at the same time, the main aim of the application is to provide a distribution box and a power supply system.
In order to realize the purpose of the utility model, the following technical scheme is adopted in the application:
an electrical box, comprising:
a BMS module;
the first circuit is provided with a first connecting end used for being electrically connected with a first battery and a second connecting end used for being electrically connected with a controller, a first charging branch and a first conductive branch are arranged between the first connecting end and the second connecting end, and the first conductive branch is used for being connected with a second battery; and
a second circuit having a third connection terminal for electrical connection to the first battery and a fourth connection terminal for electrical connection to the controller, the second circuit and the first circuit forming an energized loop between the first battery and the controller;
the second circuit is connected with a second conductive branch, the second conductive branch is used for connecting the second battery, the second conductive branch is connected with a second charging branch, a first relay is arranged between the third connecting end and the conductive branch of the second circuit, a second relay and a pre-charging module are arranged between the fourth connecting end and the conductive branch of the second circuit, the first conductive branch is provided with a third relay, and the BMS module is used for collecting the voltage V at the rear end of the second battery0The voltage V at the rear end of the first relay1And voltage V at the back end of the pre-charge module2And through V0And V1And V0And V2And the BMS module respectively controls the first relay, the second relay and the third relay to be turned on or off.
Further, in some embodiments of the present application, the pre-charge module includes a pre-charge relay and a pre-charge resistor, which are disposed in parallel with the second relay, and the pre-charge relay is disposed in series with the pre-charge resistor.
Further, in some embodiments of the present application, the second charging branch is provided with a charging relay and a first safety element, and the first safety element is located at a front end of the charging relay.
Further, in some embodiments of the present application, the second conducting branch is provided with a rectifying module between the second charging branch and the second battery.
Further, in some embodiments of the present application, the second circuit is provided with a second fuse between the first relay and the first battery.
Further, in some embodiments of the present application, the second circuit is provided with a third fuse between the second relay and the controller.
Further, in some embodiments of the present application, the distribution box has a charging interface connected to the first charging branch and the second charging branch.
Further, in some embodiments of the present application, the distribution box is provided with a high voltage converter, and the first circuit and the second circuit are connected to the first battery through the high voltage converter.
Further, in some embodiments of the present application, the second circuit is provided with a first collection point between the first relay and the first battery, the second circuit is provided with a second collection point between the second relay and the controller, the first conductive branch is provided with a third collection point between the third relay and the second battery, and a connection point of the second conductive branch and the second circuit is a fourth collection point;
the BMS module collects the voltages of the second collection point and the fourth collection point as the rear voltage V of the second battery0The BMS module collects the voltages of the first collection point and the second collection point as the voltage V at the rear end of the first relay1The BMS module collects the second collection point and theThe voltage of the third collecting point is used as the voltage V at the rear end of the pre-charging module2。
A power supply system comprises a first battery, a second battery and the distribution box.
According to the technical scheme, the distribution box has the advantages and positive effects that:
after the distribution box is installed on a vehicle with a loading load requirement, a loading battery can be additionally arranged on the vehicle, the first battery is a chassis battery, the second battery is a loading battery, the first connecting end of the first circuit is connected with the first battery, the second connecting end of the first circuit is connected with a controller of the vehicle, the first circuit is provided with a first charging branch and a first conductive branch between the first connecting end and the second connecting end, the first conductive branch is connected with the second battery, the second circuit is provided with a third connecting end electrically connected with the first battery and a fourth connecting end electrically connected with the controller, the second circuit and the first circuit form a power-on loop between the first battery and the controller to realize the power supply of the chassis battery to the controller of the vehicle, the second circuit is connected with a second conductive branch, the second conductive branch is connected with the second battery, and the second conductive branch is connected with a second charging branch, the second circuit is provided with a first relay between the third connecting end and the conducting branch, the second circuit is provided with a second relay and a pre-charging module between the fourth connecting end and the conducting branch, the second conducting branch is provided with a third relay, and the BMS module is used for acquiring the voltage V at the rear end of the second battery0The voltage V at the rear end of the first relay1And voltage V at the back end of the pre-charge module2And through V0And V1And V0And V2The BMS module controls the first relay respectively, opening or closing of second relay and third relay, realize that first battery or second battery mends the electricity mutually between controller power supply and first battery and the second battery to the controller, the second battery can make progress the power supply of dress battery system, first battery mends the electricity for the second battery, consequently, the power supply when first battery and second battery can be realized to the facial make-up battery system, increase the diversification of power battery mends the electricity mode, the duration of the machineshop car has been improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic diagram of a power supply system according to an exemplary embodiment.
Wherein the reference numerals are as follows:
10-a first battery; 20-a second battery; 30-a controller; 40-BMS module; 50-a charging interface; 60-a high voltage converter;
100-a first circuit; 200-a second circuit; 300-a first conducting branch; 400-a second conducting branch; 500-a first charging branch; 600-a second charging branch;
210-a first relay; 220-a second relay; 230-a pre-charge module; 240-a second fuse; 250-a third fuse; 260-first acquisition Point; 270-a second collection point; 280-fourth collection point;
231-a pre-charge relay; 232-precharge resistance;
310-a third relay; 320-third acquisition Point
410-a rectification module;
610-a charging relay; 620 — first insurance.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application are within the scope of the present application without inventive efforts, and therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention but only to represent selected 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.
The existing products such as engineering vehicles and sanitation vehicles in the market adopt the function of realizing corresponding vehicle types by additionally arranging an upper part on a second type chassis; however, in the existing refitting engineering vehicle on the market, the upper loading load usually needs a chassis power battery for power supply. As vehicle functions increase, the power load on the vehicle also increases. This can cause comparatively serious influence to the continuation of the journey of vehicle, lead to vehicle continuation of the journey and operating time shrink, give the facial make-up load and chassis power supply simultaneously in order to solve current chassis battery, influence vehicle continuation of the journey technical problem, the main aim at of this application provides a block terminal and power supply system, power supply system installs this block terminal, the block terminal is installed on the vehicle that has the facial make-up load demand back, can add the facial make-up battery on the car, first battery 10 is the chassis battery, second battery 20 is the facial make-up battery.
The first connection end of the first circuit 100 is connected with the first battery 10, the second connection end of the first circuit 100 is connected with the controller 30 of the vehicle, the first circuit 100 is provided with a first charging branch 500 and a first conductive branch 300 between the first connection end and the second connection end, the first conductive branch 300 is connected with the second battery 20, the second circuit 200 is provided with a third connection end electrically connected with the first battery 10 and a fourth connection end electrically connected with the controller 30, the second circuit 200 and the first circuit 100 form a power-on loop between the first battery 10 and the controller 30 to realize power supply of the chassis battery to the controller 30 of the vehicle, the second circuit 200 is connected with a second conductive branch 400, the second conductive branch 400 is connected with the second battery 20, the second conductive branch 400 is connected with a second charging branch 600, and the second circuit 200 is provided with a third connection end between the third connection end and the conductive branchA relay 210, a second relay 220 and a pre-charging module 230 are arranged between the fourth connection end and the conducting branch of the second circuit 200, a third relay 310 is arranged on the second conducting branch 400, and the BMS module 40 is used for collecting the rear end voltage V of the second battery 200Voltage V at rear end of first relay 2101And voltage V at the back end of the pre-charge module 2302And through V0And V1And V0And V2The BMS module 40 controls the first relay 210, the second relay 220 and the third relay 310 to be opened or closed respectively, the first battery 10 or the second battery 20 supplies power to the controller 30 and the first battery 10 and the second battery 20 are mutually supplemented, the second battery 20 can supply power to the upward battery system, the first battery 10 supplements power for the second battery 20, therefore, the upward battery system can realize the simultaneous power supply of the first battery 10 and the second battery 20, the diversification of the power battery supplementing mode is increased, and the cruising ability of the engineering truck is improved.
FIG. 1 is a schematic diagram of a power supply system according to an exemplary embodiment.
Referring to fig. 1, the present application provides a distribution box and a power supply system, where the distribution box may be installed in the power supply system, the distribution box has a first circuit 100, a second circuit 200, a first conducting branch 300, a second conducting branch 400, a first charging branch 500, and a second charging branch 600, and after the distribution box is installed on a vehicle with a loading requirement, the vehicle may be additionally provided with a loading battery, in this application, the first battery 10 includes a chassis battery system, and the second battery 20 includes a loading battery system. The controller 30 may be an integrated control module of the vehicle.
The first connection end of the first circuit 100 is connected with the first battery 10, the second connection end of the first circuit 100 is connected with the controller 30 of the vehicle, the first circuit 100 is provided with a first charging branch 500 and a first conducting branch 300 between the first connection end and the second connection end, the first conducting branch 300 is connected with the second battery 20, the second circuit 200 is provided with a third connection end electrically connected with the first battery 10 and a fourth connection end electrically connected with the controller 30, the second circuit 200 and the first circuit 100 form a through circuit between the first battery 10 and the controller 30 to realize the power supply of the chassis battery to the controller 30 of the vehicle, the second circuit 200 is connected with a second conducting branch 400, the second conducting branch 400 is connected with the second battery 20, the second conducting branch 400 is connected with a second charging branch 600, the second circuit 200 is provided with a first relay 210 between the third connection end and the conducting branch, the second circuit 200 is provided with a second pre-charging relay 220 and a pre-charging module 230 between the fourth connection end and the conducting branch, the second conducting branch 400 is provided with a third relay 310.
In this embodiment, the first connection end of the first circuit 100 is connected to the cathodes of the first battery 10 and the controller 30, the second end of the first circuit 100 is connected to the anodes of the first battery 10 and the controller 30, the first charging branch 500 is connected to the cathode of the charging interface 50, the second charging branch 600 is connected to the anode of the charging interface 50, the first conducting branch 300 is connected to the cathode of the second battery 20, and the second conducting branch 400 is connected to the anode of the second battery 20.
The distribution box has a charging interface 50 connected with the first charging branch 500 and the second charging branch 600, the pre-charging module 230 includes a pre-charging relay 231 and a pre-charging resistor 232 arranged in parallel with the second relay 220, the pre-charging relay 231 is arranged in series with the pre-charging resistor 232, the second charging branch 600 is provided with a charging relay 610 and a first fuse 620, the first charging fuse is located at the front end of the charging relay 610, in this embodiment, the first charging fuse is located between the charging relay 610 and the charging interface 50, the second conducting branch 400 is provided with a rectifying module 410 between the second charging branch 600 and the second battery 20, the second circuit 200 is provided with a second fuse 240 between the first relay 210 and the first battery 10, and the second circuit 200 is provided with a third fuse 250 between the second relay 220 and the controller 30.
Further, the distribution box may be further provided with a high voltage converter 60, and the first circuit 100 and the second circuit 200 are connected to the first battery 10 through the high voltage converter 60. As will be appreciated by those skilled in the art, the electrical box may be provided without the high voltage converter 60, as the chassis battery carries the high voltage converter 60 itself.
Referring to fig. 1, a dashed box marked by a is a basic structure of the distribution box, and a circuit connector is led out, so that a person skilled in the art can add a high-voltage converter 60 and a charging interface 50 on the basic structure of the distribution box according to needs.
A first collection point 260 is arranged between the first relay 210 and the first battery 10 of the second circuit 200, a second collection point 270 is arranged between the second relay 220 and the controller 30 of the second circuit 200, a third collection point 320 is arranged between the third relay 310 and the second battery 20 of the first conductive branch 300, a connection point of the second conductive branch 400 and the second circuit 200 is a fourth collection point 280, and the BMS module 40 collects the voltages of the second collection point 270 and the fourth collection point 280 as a rear end voltage V (voltage) of the second battery 200The BMS module 40 collects the voltages of the first collection point 260 and the second collection point 270 as the voltage V at the rear end of the first relay 2101The BMS module 40 collects the voltages of the second collection point 270 and the third collection point 320 as a voltage V at the rear end of the pre-charge module 2302Through V0And V1And V0And V2The BMS module 40 controls the opening or closing of the first, second, and third relays 210, 220, and 310, respectively, in comparison to the voltage difference therebetween.
Specifically, in this embodiment, the first relay 210 is a positive relay of the charging circuit and is used for controlling on/off of a high-voltage positive electrode of the charging circuit, the second relay 220 is a positive relay of the discharging circuit and is used for controlling on/off of a high-voltage positive electrode of the discharging circuit, the third relay 310 is a main negative relay at the end of the second battery 20 and is used for controlling on/off of a high-voltage negative electrode of the second battery 20, the pre-charging relay 231 is a pre-charging relay 231 of the discharging circuit and is used for controlling on/off of a pre-charging circuit of the discharging circuit, and the charging relay 610 is a positive relay of the charging circuit and is used for controlling on/off of a high-voltage positive electrode of the charging circuit.
Charging process of the charging interface 50: after the charging interface 50 is connected with the charging power supply, the charging relay 610 is closed, the BMS module 40 detects the charging, and if the electric quantity of the power storage battery is insufficient, the third relay 310 is closed, the high-voltage negative electrode of the battery is connected, and the second battery 20 starts to be charged through the charging interface 50.
When the vehicle is provided with working condition requirements: the first battery 10 or the second battery 20 outputs direct current to supply power to the controller, and the controller is electrically connected with the upper controller and the chassis controller so as to supply power to the upper controller. The upper controller can convert direct current into a three-phase alternating current motor so as to supply power to the upper driving motor.
Current compensation process of second battery 20: when the power of the second battery 20 is lower than the threshold value requiring power supplement, the first battery 10 may implement a function of power supplement to the second battery 20.
The specific implementation mode is as follows: the BMS module 40 sends a "second battery 20 power supplement request command" to the upper mounted controller, the upper mounted controller detects the upper mounted battery system and sends a detection result and a power supplement permission command to the BMS module 40 after receiving the request command, and the BMS module 40 closes the third relay 310 after receiving the command, so that the battery high voltage negative line is in a conducting state. The first relay 210 is closed, and the power supply high-voltage positive circuit is in a conducting state; and feeding back the closed state of the relay to the upper-mounted controller, and controlling the electricity supplementing operation to continue after the upper-mounted controller receives the instruction, so that the electricity supplementing of the second battery 20 can be realized.
Current compensation process of the first battery 10: when the power of the first battery 10 is lower than the threshold value requiring power supplement, the second battery 20 may perform a function of power supplement to the first battery 10.
The specific implementation mode is as follows: the BMS module 40 sends a battery power supplement request instruction to the chassis controller, the chassis controller detects the chassis battery system and sends a detection result and a power supplement permission instruction to the BMS module 40 after receiving the request instruction, and the BMS module 40 closes the third relay 310 after receiving the instruction so that the battery high-voltage negative line is in a conducting state. The first relay 210 is closed, and the power supply high-voltage positive circuit is in a conducting state; and feeding back the closed state of the relay to the chassis controller, and controlling the electricity supplementing operation to continue after the chassis controller receives the instruction, so that the electricity supplementing of the first battery 10 can be realized.
To sum up, the present application provides a distribution box and power supply system, and the distribution box can be installed in this power supply system, and BMS module 40 gathers second battery 20 rear end voltage V0Voltage V at rear end of first relay 2101And voltage V at the back end of the pre-charge module 2302And through V0And V1And V0And V2The pressure difference between the two is compared with each other,the BMS module 40 controls the opening or closing of the first relay 210, the second relay 220 and the third relay 310 respectively, the power supply of the first battery 10 or the second battery 20 to the controller 30 and the mutual power supplement between the first battery 10 and the second battery 20 are realized, the second battery 20 can supply power to the upward battery system, the first battery 10 supplements the power for the second battery 20, therefore, the power supply of the first battery 10 and the second battery 20 can be realized by the upward battery system at the same time, the diversification of the power battery supplementing mode is increased, and the cruising ability of the engineering truck is improved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the general inventive concept. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An electrical box, comprising:
a BMS module (40);
the first circuit (100) is provided with a first connection end used for being electrically connected with a first battery (10) and a second connection end used for being electrically connected with a controller (30), a first charging branch (500) and a first conductive branch (300) are arranged between the first connection end and the second connection end of the first circuit (100), and the first conductive branch (300) is used for being connected with a second battery (20); and
a second circuit (200), the second circuit (200) having a third connection for electrical connection to the first battery (10) and a fourth connection for electrical connection to the controller (30), the second circuit (200) and the first circuit (100) forming a continuity circuit between the first battery (10) and the controller (30);
the second circuit (200) is connected with a second conducting branch (400), the second conducting branch (400) is used for connecting the second battery (20), the second conducting branch (400) is connected with a second charging branch (600), a first relay (210) is arranged between the third connecting end and the conducting branch of the second circuit (200), a second relay (220) and a pre-charging module (230) are arranged between the fourth connecting end and the conducting branch of the second circuit (200), the first conducting branch (300) is provided with a third relay (310), and the BMS module (40) is used for collecting the voltage V (V) at the rear end of the second battery (20)0A rear end voltage V of the first relay (210)1And a voltage V at the back end of the pre-charge module (230)2And through V0And V1And V0And V2The BMS module (40) controls the first relay (210), the second relay (220) and the third relay (310) to be turned on or off respectively according to the comparison of the voltage difference.
2. The electrical box of claim 1, wherein the pre-charge module (230) comprises a pre-charge relay (231) and a pre-charge resistor (232) disposed in parallel with the second relay (220), the pre-charge relay (231) being disposed in series with the pre-charge resistor (232).
3. The electric box according to claim 1, characterized in that said second charging branch (600) is provided with a charging relay (610) and a first fuse (620), said first charging fuse being located at the front end of said charging relay (610).
4. The electric box according to claim 1, characterized in that said second electrically conductive branch (400) is provided with a rectifying module (410) between a second charging branch (600) and said second battery (20).
5. The electrical box according to claim 1, characterized in that the second electrical circuit (200) is provided with a second fuse (240) between the first relay (210) and the first battery (10).
6. The electrical box of claim 1, wherein the second electrical circuit (200) is provided with a third fuse (250) between the second relay (220) and the controller (30).
7. The electric box according to claim 1, characterized in that it has a charging interface (50) connected to said first charging branch (500) and to said second charging branch (600).
8. The electrical box according to claim 1, characterized in that it is provided with a high voltage converter (60), the first electrical circuit (100) and the second electrical circuit (200) being connected to the first battery (10) through the high voltage converter (60).
9. The electrical box according to claim 1, wherein the second electrical circuit (200) is provided with a first collection point (260) between the first relay (210) and the first battery (10), the second electrical circuit (200) is provided with a second collection point (270) between the second relay (220) and the controller (30), the first electrically conductive branch (300) is provided with a third collection point (320) between the third relay (310) and the second battery (20), and a connection point of the second electrically conductive branch (400) and the second electrical circuit (200) is a fourth collection point (280);
the BMS module (40) collects the voltages of the second collection point (270) and the fourth collection point (280) as the rear end voltage V of the second battery (20)0The BMS module (40) collects the voltages of the first collection point (260) and the second collection point (270) as the voltage V at the rear end of the first relay (210)1The BMS module (40) collects the voltages of the second collection point (270) and the third collection point (320) as a voltage V at the rear end of the pre-charge module (230)2。
10. A power supply system, characterized by comprising a first battery (10), a second battery (20) and a distribution box according to any one of claims 1 to 9.
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| CN202122339657.9U CN216056415U (en) | 2021-09-24 | 2021-09-24 | Distribution box and power supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115765082A (en) * | 2022-11-15 | 2023-03-07 | 北京航天发射技术研究所 | Pre-charging control method and device for synchronous servo controller of special equipment |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115765082A (en) * | 2022-11-15 | 2023-03-07 | 北京航天发射技术研究所 | Pre-charging control method and device for synchronous servo controller of special equipment |
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