CN215513241U - High-voltage distribution box of wheel hub motor automobile - Google Patents
High-voltage distribution box of wheel hub motor automobile Download PDFInfo
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- CN215513241U CN215513241U CN202120611101.8U CN202120611101U CN215513241U CN 215513241 U CN215513241 U CN 215513241U CN 202120611101 U CN202120611101 U CN 202120611101U CN 215513241 U CN215513241 U CN 215513241U
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Abstract
The utility model provides a high-voltage distribution box of a wheel hub motor automobile, which comprises: the system comprises a manual maintenance switch, a distribution box main fuse, a main positive relay, a main negative relay, a pre-charging variable resistor, a front shaft double-contact high-voltage relay, a front shaft pre-charging relay, a rear shaft double-input-contact high-voltage relay, a rear shaft pre-charging relay and the like. The utility model adopts the double-contact relay to ensure that the coaxial hub motors are synchronous and have no time difference between upper and lower high voltage, and simultaneously the coaxial hub motors share a pre-charging loop, thereby reducing the volume and the weight of the high-voltage distribution box, adjusting the pre-charging current by the variable resistor and reducing the time, and even if the power of the hub motors of left and right toilets is different due to the control requirement of the whole vehicle, the current of the double-contact relay of the front and rear shafts can still be ensured to be the same, thereby prolonging the service life of the high-voltage distribution box.
Description
Technical Field
The embodiment of the utility model relates to the technical field of vehicle power distribution, in particular to a high-voltage distribution box of a wheel hub motor automobile.
Background
The hub motor automobile directly integrates the driving motor into the wheels of the automobile, so that the transmission system assemblies of a reduction gearbox, a transfer case, a transmission shaft and the like of the automobile are reduced, the weight of the automobile is reduced, and simultaneously, each wheel can be independently controlled, so that the hub motor automobile gradually becomes an important component of the electric automobile.
However, the research on the related technologies of the hub motor vehicle mainly focuses on the development of a wheel integrated hub motor and the research on the stability and power related control technologies of the hub motor vehicle, and the high-voltage power distribution technology of the hub motor vehicle directly follows the high-voltage power distribution technology of an axle motor driving mode, and the special factors of a high-voltage system of the hub motor vehicle are not fully considered, which directly causes the problems that the volume and the weight of a high-voltage distribution box are large, the running stability of the vehicle is poor, the working life of the high-voltage distribution box is short, and the like. Therefore, the development of a high voltage distribution box for an in-wheel motor vehicle can effectively overcome the defects in the related art, and is an urgent technical problem in the industry.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the embodiment of the utility model provides a high-voltage distribution box of a wheel hub motor automobile.
In a first aspect, an embodiment of the present invention provides a high voltage distribution box of an in-wheel motor vehicle, including: the manual maintenance switch 1 is connected with a distribution box main fuse F1 and a power battery high-voltage connector HV +; the distribution box main fuse F1 is connected with a main positive relay K1; the main positive relay K1 is connected with a pre-charging variable resistor R1, a pre-charging variable resistor R2, a pre-charging variable resistor R3, a front axle double-contact high-voltage relay Kf1, a rear axle double-contact high-voltage relay Kr1, a charger high-voltage relay Ka1 and a high-voltage accessory pre-charging relay Kb 2; the pre-charging variable resistor R1 is connected with a front axle pre-charging relay Kf 2; the front axle double-contact high-voltage relay Kf1 is connected with a fuse F3 and a fuse F2; the front axle pre-charging relay Kf2 is connected with a fuse F3; the rear-axle double-contact high-voltage relay Kr1 is connected with a fuse F4 and a fuse F5; the pre-charging variable resistor R2 is connected with a rear axle pre-charging relay Kr 2; the rear axle pre-charging relay Kr2 is connected with a fuse F5; the pre-charging variable resistor R3 is connected with a pre-charging relay Ka2 of the charger and a high-voltage accessory high-voltage relay Kb 1; the charger high-voltage relay Ka1 and the charger pre-charging relay Ka2 are connected with the fuse F6; the high-voltage accessory high-voltage relay Kb1 and the high-voltage accessory pre-charging relay Kb2 are connected with a fuse F7; the main negative relay K2 is connected with a high-voltage distribution box controller 2, a power battery high-voltage connector HV-, a left front wheel hub motor controller high-voltage connector HV1+, a left front wheel hub motor controller high-voltage connector HV1-, a right front wheel hub motor controller high-voltage connector HV2+, a right front wheel hub motor controller high-voltage connector HV2-, a left rear wheel hub motor controller high-voltage connector HV3+, a left rear wheel hub motor controller high-voltage connector HV3-, a right rear wheel hub motor controller high-voltage connector HV4+, a right rear wheel hub motor controller high-voltage connector HV4-, the charger high-voltage connector HV5+, the charger high-voltage connector HV5-, the high-voltage accessory high-voltage connector HV6+, the high-voltage accessory high-voltage connector HV6-, the fuse F2, the fuse F3, the fuse F4, the fuse F5, the fuse F6 and the fuse F7 are connected.
On the basis of the content of the above embodiment, in the high-voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the utility model, the front-shaft high-voltage current-sharing cable 3 is connected with the fuse F3 and the fuse F2, and the front-shaft double-contact high-voltage relay Kf1 ensures that the two in-wheel motors of the front shaft are synchronous and have no time difference between the upper and lower high voltages.
On the basis of the content of the above embodiment, in the high-voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the utility model, the rear-axle high-voltage current-sharing cable 4 is connected with the fuse F4 and the fuse F5, and the rear-axle dual-contact high-voltage relay Kr1 ensures that the two in-wheel motors of the rear axle are synchronous and have no time difference in upper and lower high voltages.
Based on the content of the above embodiment, in the high voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the present invention, the pre-charging variable resistor R1, the pre-charging variable resistor R2, and the pre-charging variable resistor R3 are all used to adjust the current magnitude and the pre-charging duration of the pre-charging circuit.
On the basis of the content of the above embodiment, in the high-voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the utility model, the coil ends of the main positive relay K1 and the main negative relay K2 are connected in series to keep synchronous opening and closing.
On the basis of the content of the above embodiment, the high voltage distribution box of the wheel hub motor vehicle provided in the embodiment of the present invention further includes: and the shell 5 is used for forming an outer protective shell of the high-voltage distribution box of the hub motor automobile.
On the basis of the content of the above embodiments, in the high-voltage distribution box of an in-wheel motor vehicle provided in the embodiments of the present invention, a first end of the front axle dual-contact high-voltage relay Kf1 is connected to one end of the precharge variable resistor R1, and is connected in series to the rear end of the main positive relay K1 contact, a second end of the front axle dual-contact high-voltage relay Kf1 is connected to the fuse F2, and a third end of the front axle dual-contact high-voltage relay Kf1 is connected to the fuse F3.
Based on the above embodiments, in the high-voltage distribution box of an in-wheel motor vehicle provided in the embodiments of the present invention, a first end of the rear axle dual-contact high-voltage relay Kr1 is connected to one end of the precharge variable resistor R2, and is connected in series to the rear end of the main positive relay K1 contact, a second end of the rear axle dual-contact high-voltage relay Kr1 is connected to the fuse F4, and a third end of the rear axle dual-contact high-voltage relay Kr1 is connected to the fuse F5.
Based on the content of the above embodiment, in the high-voltage distribution box of the wheel hub motor vehicle provided in the embodiment of the utility model, the first end of the charger high-voltage relay Ka1 is connected to the pre-charge variable resistor R3, and is connected to the rear end of the contact of the main positive relay K1 in series, and the second end of the motor high-voltage relay Ka1 is connected to the fuse F6.
On the basis of the content of the above embodiments, in the high voltage distribution box of the wheel hub motor vehicle provided in the embodiments of the present invention, one end of the high voltage accessory high voltage relay Kb1 is connected in series to the rear end of the contact of the main positive relay K1.
According to the high-voltage distribution box of the hub motor automobile provided by the embodiment of the utility model, the high-voltage relays of the hub motors at the left side and the right side of the front shaft and the rear shaft adopt the double-contact high-voltage relays and share the pre-charging loop, so that the volume and the weight of the high-voltage distribution box can be effectively reduced, the left hub motor and the right hub motor are controlled by adopting the high-voltage relays with one coil and two contacts, the coaxial hub motors are synchronous, the upper high voltage and the lower high voltage without time difference are realized, the running stability of the automobile is ensured, the high-voltage current-sharing cables are designed at the front ends of the hub motor insurance at the left side and the right side, the double-contact relays ensure that the current of the double-contact relays at the front shaft and the rear shaft is the same when the power of the hub motors at the left toilet is different due to the control requirement of the whole automobile, and the service life of the high-voltage distribution box is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below to the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a high-voltage distribution box of an in-wheel motor vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a high-voltage distribution box of another in-wheel motor vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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. In addition, technical features of various embodiments or individual embodiments provided by the present invention may be arbitrarily combined with each other to form a feasible technical solution, and such combination is not limited by the sequence of steps and/or the structural composition mode, but must be realized by a person skilled in the art, and when the technical solution combination is contradictory or cannot be realized, such a technical solution combination should not be considered to exist and is not within the protection scope of the present invention.
The embodiment of the utility model provides a high-voltage distribution box of a wheel hub motor automobile, which comprises the following components in part by weight in the specification as shown in figure 1: the manual maintenance switch 1 is connected with a distribution box main fuse F1 and a power battery high-voltage connector HV +; the distribution box main fuse F1 is connected with a main positive relay K1; the main positive relay K1 is connected with a pre-charging variable resistor R1, a pre-charging variable resistor R2, a pre-charging variable resistor R3, a front axle double-contact high-voltage relay Kf1, a rear axle double-contact high-voltage relay Kr1, a charger high-voltage relay Ka1 and a high-voltage accessory pre-charging relay Kb 2; the pre-charging variable resistor R1 is connected with a front axle pre-charging relay Kf 2; the front axle double-contact high-voltage relay Kf1 is connected with a fuse F3 and a fuse F2; the front axle pre-charging relay Kf2 is connected with a fuse F3; the rear-axle double-contact high-voltage relay Kr1 is connected with a fuse F4 and a fuse F5; the pre-charging variable resistor R2 is connected with a rear axle pre-charging relay Kr 2; the rear axle pre-charging relay Kr2 is connected with a fuse F5; the pre-charging variable resistor R3 is connected with a pre-charging relay Ka2 of the charger and a high-voltage accessory high-voltage relay Kb 1; the charger high-voltage relay Ka1 and the charger pre-charging relay Ka2 are connected with the fuse F6; the high-voltage accessory high-voltage relay Kb1 and the high-voltage accessory pre-charging relay Kb2 are connected with a fuse F7; the main negative relay K2 is connected with a high-voltage distribution box controller 2, a power battery high-voltage connector HV-, a left front wheel hub motor controller high-voltage connector HV1+, a left front wheel hub motor controller high-voltage connector HV1-, a right front wheel hub motor controller high-voltage connector HV2+, a right front wheel hub motor controller high-voltage connector HV2-, a left rear wheel hub motor controller high-voltage connector HV3+, a left rear wheel hub motor controller high-voltage connector HV3-, a right rear wheel hub motor controller high-voltage connector HV4+, a right rear wheel hub motor controller high-voltage connector HV4-, the charger high-voltage connector HV5+, the charger high-voltage connector HV5-, the high-voltage accessory high-voltage connector HV6+, the high-voltage accessory high-voltage connector HV6-, the fuse F2, the fuse F3, the fuse F4, the fuse F5, the fuse F6 and the fuse F7 are connected.
Referring to fig. 2, on the basis of the above embodiment, in the high voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the present invention, the front axle high voltage equalizing cable 3 connects the fuse F3 and the fuse F2, and the front axle dual-contact high voltage relay Kf1 ensures that the two in-wheel motors on the front axle are synchronous and have no time difference between the upper and lower high voltages.
Referring to fig. 2, on the basis of the above embodiment, in the high-voltage distribution box of the wheel hub motor vehicle provided in the embodiment of the utility model, the rear axle high-voltage current-sharing cable 4 connects the fuse F4 and the fuse F5, and the rear axle dual-input-contact high-voltage relay Kr1 ensures that the two wheel hub motors of the rear axle are synchronous and have no time difference in upper and lower high voltages.
Specifically, fuse F2 connects to the left front wheel hub motor controller high voltage connector HV1+, fuse F3 connects to the right front wheel hub motor controller high voltage connector HV2+, fuse F4 connects to the left rear wheel hub motor controller high voltage connector HV3+, fuse F5 connects to the right rear wheel hub motor controller high voltage connector HV4+, fuse F6 connects to the charger high voltage connector HV5+, fuse F7 connects to the high voltage accessory high voltage connector HV6 +. The high-voltage distribution box controller 2 receives a control instruction of the whole vehicle through external interfaces CANH and CANL. The front-shaft double-contact high-voltage relay Kf1 and the rear-shaft double-contact high-voltage relay Kr1 ensure synchronous, time-difference-free up-down high-voltage electricity of the coaxial hub motor.
On the basis of the above embodiment, in the high-voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the utility model, the pre-charging variable resistor R1, the pre-charging variable resistor R2 and the pre-charging variable resistor R3 are all used for adjusting the current magnitude and the pre-charging duration of the pre-charging circuit. Specifically, the precharge variable resistor R1, the precharge variable resistor R2, and the precharge variable resistor R3 ∈ [0, Rmax ], where Rmax is an upper limit value.
On the basis of the above embodiment, in the high-voltage distribution box of the in-wheel motor vehicle provided in the embodiment of the utility model, the coil ends of the main positive relay K1 and the main negative relay K2 are connected in series to keep synchronous opening and closing.
Referring to fig. 2, on the basis of the above embodiment, the high voltage distribution box of an in-wheel motor vehicle provided in the embodiment of the present invention further includes: and the shell 5 is used for forming an outer protective shell of the high-voltage distribution box of the hub motor automobile.
On the basis of the above embodiment, in the high-voltage distribution box of an in-wheel motor vehicle provided in the embodiment of the present invention, the first end of the front axle dual-contact high-voltage relay Kf1 is connected to one end of the precharge variable resistor R1, and is connected in series to the rear end of the main positive relay K1 contact, the second end of the front axle dual-contact high-voltage relay Kf1 is connected to the fuse F2, and the third end of the front axle dual-contact high-voltage relay Kf1 is connected to the fuse F3.
On the basis of the above embodiment, in the high-voltage distribution box of an in-wheel motor vehicle provided in the embodiment of the present invention, a first end of the rear axle dual-input-contact high-voltage relay Kr1 is connected to one end of the pre-charge variable resistor R2, and is connected in series to the rear end of the contact of the main positive relay K1, a second end of the rear axle dual-input-contact high-voltage relay Kr1 is connected to the fuse F4, and a third end of the rear axle dual-input-contact high-voltage relay Kr1 is connected to the fuse F5.
On the basis of the above embodiment, in the high-voltage distribution box of the wheel hub motor vehicle provided in the embodiment of the utility model, the first end of the charger high-voltage relay Ka1 is connected to the pre-charging variable resistor R3, and is connected to the rear end of the contact of the main positive relay K1 in series, and the second end of the motor high-voltage relay Ka1 is connected to the fuse F6.
On the basis of the above embodiments, in the high voltage distribution box of an in-wheel motor vehicle provided in the embodiments of the present invention, one end of the high voltage accessory high voltage relay Kb1 is connected in series to the rear end of the contact of the main positive relay K1.
Referring specifically to fig. 2, the high-voltage distribution box controller 2 controls the entire vehicleThe instructions control the pre-charging, up-down high voltage electricity of the high voltage electric equipment. The high-voltage distribution box controller 2 outputs high level to control the opening and closing of a main positive relay K1, a main negative relay K2, a front axle double-contact high-voltage relay Kf1, a front axle pre-charging relay Kf2, a rear axle double-contact high-voltage relay Kr1, a rear axle pre-charging relay Kr2, a charger high-voltage relay Ka1, a charger pre-charging relay Ka2, a high-voltage accessory high-voltage relay Kb1 and a high-voltage accessory pre-charging relay Kb 2. Coil ends of the main positive relay K1 and the main negative relay K2 are connected in series, and synchronous opening and closing can be kept. If the left front wheel hub motor power PflRight front wheel hub motor power PfrLeft rear hub motor power PrlAnd right rear wheel hub motor power PrrThe voltage U of the power battery is the current I flowing through two contacts of a front axle double-contact high-voltage relay Kf1fTwo-contact current I of rear axle double-contact high-voltage relay Kr1rCurrent I of front axle high voltage current equalizing cable 31Rear axle high voltage current equalizing cable 4 current I2Respectively as follows:
if I1If the power is 0, the power of the left and right front hub motors is the same, and no current flows through the front axle high-voltage current equalizing cable 3; if I1If the current is larger than 0, the power of the left front hub motor is larger than that of the right front hub motor, and the current in the front-shaft high-voltage current-sharing cable 3 flows to the left frontA hub motor; if I1If the power of the left front hub motor is smaller than that of the right front hub motor, the current in the front shaft high-voltage current-sharing cable 3 flows to the right front hub motor; if I2If the power is 0, the power of the left and right rear hub motors is the same, and no current flows through the front shaft high-voltage current equalizing cable 4; if I2If the current is greater than 0, the power of the left rear hub motor is greater than that of the right rear hub motor, and the current in the front-shaft high-voltage current-sharing cable 4 flows to the left rear hub motor; if I2If the power of the left rear hub motor is smaller than the power of the right rear hub motor, the current in the front-shaft high-voltage current-sharing cable 3 flows to the right rear hub motor.
According to the high-voltage distribution box of the hub motor automobile provided by the embodiment of the utility model, the high-voltage relays of the hub motors at the left side and the right side of the front shaft and the rear shaft adopt the double-contact high-voltage relays and share the pre-charging loop, so that the volume and the weight of the high-voltage distribution box can be effectively reduced, the left hub motor and the right hub motor are controlled by adopting the high-voltage relays with one coil and two contacts, the coaxial hub motors are synchronous, the upper high voltage and the lower high voltage without time difference are realized, the running stability of the automobile is ensured, the high-voltage current-sharing cables are designed at the front ends of the hub motor insurance at the left side and the right side, the double-contact relays ensure that the current of the double-contact relays at the front shaft and the rear shaft is the same when the power of the hub motors at the left toilet is different due to the control requirement of the whole automobile, and the service life of the high-voltage distribution box is prolonged.
The high-voltage relays of the hub motors on the left side and the right side of the front shaft and the rear shaft adopt double-contact high-voltage relays and share a pre-charging loop, so that the number of the high-voltage relays and pre-charging resistors is reduced, and the volume and the weight of a high-voltage distribution box can be effectively reduced; the left and right hub motors are controlled by a high-voltage relay with one coil and 2 contacts, so that the upper and lower high-voltage electricity of the left and right hub motors can be synchronously controlled, no time difference exists, and the problem of inconsistent upper and lower high-voltage electricity of the left and right hub motors is avoided; the front shaft and the rear shaft are independently controlled, and when one shaft has a high-voltage fault, the hub motor of the other shaft can be controlled to drive the vehicle to limp to a maintenance service station for maintenance; the high-voltage current-sharing cable is designed at the front end of the hub motor insurance on the left side and the right side. When the power of the hub motors on the left side and the right side is different, the current flowing through 2 contacts in the high-voltage relay is the same through the action of the high-voltage current-sharing cable according to kirchhoff voltage and current theorem, and the service life of the relay can be prolonged. The pre-charging time can be calibrated through the pre-charging variable resistor, and the optimal matching of the system is realized. The coils of the total positive relay and the total negative relay are connected in series, so that the control difficulty of the total positive relay and the total negative relay is reduced, and the I/O resource of a control circuit can be saved.
According to the high-voltage distribution box of the hub motor automobile provided by each embodiment of the utility model, the double-contact relay is adopted to ensure that the coaxial hub motors simultaneously carry out up-down high-voltage electricity, and meanwhile, the coaxial hub motors share the pre-charging loop, so that the volume and the weight of the high-voltage distribution box are reduced, the variable resistor adjusts the pre-charging current and reduces the time, even if the power of the hub motors of left and right toilets is different due to the control requirement of the whole automobile, the current of the double-contact relay of the front shaft and the rear shaft can still be ensured to be the same, and the service life of the high-voltage distribution box is prolonged.
In this patent, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (10)
1. The utility model provides a high tension switchgear of in-wheel motor car which characterized in that includes: the manual maintenance switch (1) is connected with a distribution box main fuse F1 and a power battery high-voltage connector HV +; the distribution box main fuse F1 is connected with a main positive relay K1; the main positive relay K1 is connected with a pre-charging variable resistor R1, a pre-charging variable resistor R2, a pre-charging variable resistor R3, a front axle double-contact high-voltage relay Kf1, a rear axle double-contact high-voltage relay Kr1, a charger high-voltage relay Ka1 and a high-voltage accessory pre-charging relay Kb 2; the pre-charging variable resistor R1 is connected with a front axle pre-charging relay Kf 2; the front axle double-contact high-voltage relay Kf1 is connected with a fuse F3 and a fuse F2; the front axle pre-charging relay Kf2 is connected with a fuse F3; the rear-axle double-contact high-voltage relay Kr1 is connected with a fuse F4 and a fuse F5; the pre-charging variable resistor R2 is connected with a rear axle pre-charging relay Kr 2; the rear axle pre-charging relay Kr2 is connected with a fuse F5; the pre-charging variable resistor R3 is connected with a pre-charging relay Ka2 of the charger and a high-voltage accessory high-voltage relay Kb 1; the charger high-voltage relay Ka1 and the charger pre-charging relay Ka2 are connected with the fuse F6; the high-voltage accessory high-voltage relay Kb1 and the high-voltage accessory pre-charging relay Kb2 are connected with a fuse F7; the main negative relay K2 is connected with a high-voltage distribution box controller (2), a power battery high-voltage connector HV-, a left front wheel hub motor controller high-voltage connector HV1+, a left front wheel hub motor controller high-voltage connector HV1-, a right front wheel hub motor controller high-voltage connector HV2+, a right front wheel hub motor controller high-voltage connector HV2-, a left rear wheel hub motor controller high-voltage connector HV3+, a left rear wheel hub motor controller high-voltage connector HV3-, a right rear wheel hub motor controller high-voltage connector HV4+, a right rear wheel hub motor controller high-voltage connector HV4-, the charger high-voltage connector HV5+, the charger high-voltage connector HV5-, the high-voltage accessory high-voltage connector HV6+, the high-voltage accessory high-voltage connector HV6-, the fuse F2, the fuse F3, the fuse F4, the fuse F5, the fuse F6 and the fuse F7 are connected.
2. The high-voltage distribution box of an in-wheel motor vehicle as claimed in claim 1, wherein a front axle high-voltage current equalizing cable (3) is connected with the fuse F3 and the fuse F2, and a front axle double-contact high-voltage relay Kf1 ensures that two in-wheel motors on the front axle are synchronous and have no time difference between upper and lower high voltages.
3. The high-voltage distribution box of an in-wheel motor vehicle as claimed in claim 1, wherein a rear axle high-voltage current sharing cable (4) is connected with the fuse F4 and the fuse F5, and a rear axle double-contact high-voltage relay Kr1 ensures that two in-wheel motors on a rear axle are synchronous and have no time difference between upper and lower high voltages.
4. The high-voltage distribution box of the in-wheel motor vehicle as claimed in claim 1, wherein the pre-charging variable resistor R1, the pre-charging variable resistor R2 and the pre-charging variable resistor R3 are all used for adjusting the current magnitude and the pre-charging duration of the pre-charging loop.
5. The hubcap of an in-wheel motor vehicle as claimed in claim 1, wherein said coil terminals of said main positive relay K1 and said main negative relay K2 are connected in series to keep opening and closing synchronously.
6. The hubcap of an in-wheel motor vehicle of claim 1, further comprising: and the shell (5) is used for forming an outer-layer protective shell of the high-voltage distribution box of the hub motor automobile.
7. The high voltage distribution box of in-wheel motor vehicle of claim 1, wherein a first end of said front axle dual-contact high voltage relay Kf1 is connected to one end of a pre-charging variable resistor R1 and is connected in series with a rear end of a main positive relay K1 contact, a second end of said front axle dual-contact high voltage relay Kf1 is connected to a fuse F2, and a third end of said front axle dual-contact high voltage relay Kf1 is connected to a fuse F3.
8. The high-voltage distribution box of the in-wheel motor vehicle as claimed in claim 1, wherein a first end of the rear axle dual-input-contact high-voltage relay Kr1 is connected with one end of the pre-charging variable resistor R2 and is connected in series with a rear end of a contact of the main positive relay K1, a second end of the rear axle dual-input-contact high-voltage relay Kr1 is connected to the fuse F4, and a third end of the rear axle dual-input-contact high-voltage relay Kr1 is connected to the fuse F5.
9. The high-voltage distribution box of an in-wheel motor vehicle as claimed in claim 1, wherein a first end of the charger high-voltage relay Ka1 is connected with a pre-charging variable resistor R3, and is connected with a rear end of a contact of a main positive relay K1 in series, and a second end of the motor high-voltage relay Ka1 is connected with a fuse F6.
10. The hubcap of claim 1 wherein said high voltage accessory high voltage relay Kb1 is connected in series with the rear end of the main positive relay K1 contact.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120611101.8U CN215513241U (en) | 2021-03-25 | 2021-03-25 | High-voltage distribution box of wheel hub motor automobile |
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| CN202120611101.8U CN215513241U (en) | 2021-03-25 | 2021-03-25 | High-voltage distribution box of wheel hub motor automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977070A (en) * | 2021-03-25 | 2021-06-18 | 东风越野车有限公司 | High-voltage distribution box of wheel hub motor automobile |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977070A (en) * | 2021-03-25 | 2021-06-18 | 东风越野车有限公司 | High-voltage distribution box of wheel hub motor automobile |
| CN112977070B (en) * | 2021-03-25 | 2024-05-14 | 东风越野车有限公司 | High-voltage distribution box of hub motor automobile |
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