CN221176849U - Distribution box, electric control system and electric automobile of external fuse - Google Patents
Distribution box, electric control system and electric automobile of external fuse Download PDFInfo
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- CN221176849U CN221176849U CN202322550750.3U CN202322550750U CN221176849U CN 221176849 U CN221176849 U CN 221176849U CN 202322550750 U CN202322550750 U CN 202322550750U CN 221176849 U CN221176849 U CN 221176849U
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Abstract
The utility model provides a distribution box with an external fuse, an electric control system and an electric automobile, and relates to the technical field of automobile battery packs, comprising the following components: the power distribution unit, the fixed connector and the free end connector, wherein a fuse is arranged in the fixed connector; the input end of the power distribution unit is connected with the anode and the cathode of the battery pack, the output end of the power distribution unit is connected with the input end of the fixed connector, the output end of the fixed connector is connected with the input end of the free end connector, and the output end of the free end connector is connected with the electric appliance. According to the utility model, the external design of the protection fuse of the electric appliance loop in the original power distribution box is realized, the power distribution box is not required to be disassembled, the maintenance and the after-sale replacement are convenient and quick, and the installation space and the material cost are saved by multiplexing a pair of external aviation plug and socket for the protection fuse of the electric appliance loop in the original power distribution box.
Description
Technical Field
The utility model relates to the technical field of automobile battery packs, in particular to a distribution box with an external fuse, an electric control system and an electric automobile.
Background
PDU (Power Distribution Unit, high-voltage distribution box) on electric automobile is a device for distributing high-voltage power supply of whole automobile, mainly distributes high-voltage power supply to each actuator to drive, and is similar to electric appliance fuse box in electric circuit system. The PDU is composed of a plurality of high-voltage relays and high-voltage fuses. And the functions of high-voltage accessories such as a control system of a coordinated driving motor, a battery management system, a charging management system, a DC/DC (Direct Current Direct Current Converter, direct current converter), an electric air conditioner, an electric power steering system, a braking system and the like are converted and energy is distributed. The high-voltage distribution unit can also realize the safety protection functions of short circuit overload, quick power-off protection, anti-leakage protection and the like.
The power distribution unit on the electric automobile is generally called PDU, as shown in figure 1, mainly redistributes the high-voltage direct current on the battery pack, and transmits to PTC (Positive Temperature Coefficient, heater), AC (Air conditioner) and DC/DC; in the branches, a breaking fuse is generally required to be added, so that the damage to PDU and battery pack caused by the short circuit condition at the rear end is prevented; usually, the fuses are arranged in the PDU, then the PDU is sealed, if the fuses of the branches are fused, the replacement after sale is troublesome, the whole PDU is required to be disassembled, the shell is opened for replacement, the maintenance efficiency is low, and the maintenance cost is high; in the path from the PDU of the electric automobile to each electric appliance, each single electric branch needs a pair of plug sockets; the installation space and the assembly procedure of the PDU are increased, and the material cost and the after-sales cost are increased.
Disclosure of utility model
Therefore, the present utility model is directed to a power distribution box, an electric control system and an electric vehicle with external fuses, so as to overcome the above problems in the prior art.
In a first aspect, the present utility model provides an external fuse distribution box, comprising: the power distribution unit, the fixed connector and the free end connector, wherein a fuse is arranged in the fixed connector;
The input end of the power distribution unit is connected with the anode and the cathode of the battery pack, the output end of the power distribution unit is connected with the input end of the fixed connector, the output end of the fixed connector is connected with the input end of the free end connector, and the output end of the free end connector is connected with the electric appliance.
In a preferred embodiment of the present utility model, the output end of the power distribution unit is connected to the input end of the fixed connector in a plugging manner.
In a preferred embodiment of the present utility model, the fixed connector includes a circuit branch, and the fuse is connected in series in the circuit branch.
In a preferred embodiment of the present utility model, the electric appliance includes a dc converter, an air conditioner, and a heater; the circuit branch comprises a first circuit branch connected with the direct current converter, a second circuit branch connected with the air conditioner and a third circuit branch connected with the heater.
In a preferred embodiment of the present utility model, the fixed connector is an aviation socket, and the free end connector is an aviation plug; the fixed connector and the free end connector form an aviation plug and socket; the first circuit branch connected with the direct current converter, the second circuit branch connected with the air conditioner and the third circuit branch connected with the heater multiplex a pair of aviation plug and socket.
In a second aspect, an electrical control system includes the electrical box of the external fuse of the first aspect, a battery pack, and an electrical appliance; the positive electrode and the negative electrode of the battery pack are connected with the input end of the distribution box of the external fuse, and the output end of the distribution box of the external fuse is connected with an electric appliance;
In a third aspect, an electric vehicle includes the electric control system of the second aspect and an electric vehicle body.
The utility model has the following beneficial effects:
1. According to the application, through the external design of the protection fuse of the electric appliance loop in the original distribution box, the distribution box is not required to be disassembled, the maintenance and the after-sale replacement are convenient and quick, and the time is saved;
2. According to the application, the protection fuse of the electric appliance loop in the original power distribution box is multiplexed with a pair of external aviation plug and socket, so that the installation space and the material cost are saved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a power distribution unit of an electric vehicle according to an embodiment of the present utility model;
Fig. 2 is a schematic diagram of internal wiring of an original power distribution unit according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of the wiring of the improved power distribution unit according to the embodiment of the present utility model.
Wherein, 1-socket; 2-plug; 31-an original power distribution unit; 32-an improved power distribution unit; 4-a fixed connector; 5-free end connector.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Conventional distribution boxes, as shown in fig. 2, the fuse of each power branch is installed inside the distribution box. When the fuse is damaged, the distribution box is required to be detached from the electric automobile firstly during maintenance, and then the distribution box shell (namely the shell of the original power distribution unit 31) is detached independently, so that the whole maintenance process is complex, the efficiency is low, special tools are required, and the operation difficulty is high.
Meanwhile, a pair of plugs 2 and sockets 1 are needed for each single power utilization branch from a high-voltage distribution box of the electric automobile to a path of each power utilization device; the installation space of the distribution box is increased, the assembly process is increased, and the material cost and the after-sale cost are increased.
Aiming at the defects of the prior art, the utility model aims to provide a distribution box with external fuses, an electric control system and an electric automobile, as shown in fig. 3, wherein the fuses of each power utilization branch are arranged on an external aviation socket; when the fuse is damaged, the aviation socket is directly disassembled for maintenance, the fuse is replaced, PDU (protocol data unit) is not required to be disassembled, PDU is not required to be opened, the use tool is simple, the maintenance efficiency is high, and the maintenance cost is low; meanwhile, in the path from the high-voltage distribution box of the electric automobile to each electric appliance, a plurality of electric branches only need a pair of aviation plugs and aviation sockets, and a plurality of loops multiplex a pair of aviation plug and socket, so that the number of plug and socket and the installation space are saved, the cost is reduced, and the installation efficiency is improved.
Examples
In order to achieve the above object, the present utility model provides the following technical solutions;
in a first aspect, as shown in fig. 3, the present utility model provides an external fuse distribution box, including: a power distribution unit (i.e., a modified power distribution unit 32), a fixed connector 4, and a free-end connector 5, wherein a fuse is provided in the fixed connector 4;
The input end of the power distribution unit (i.e. the improved power distribution unit 32) is connected with the anode and the cathode of the battery pack, the output end of the power distribution unit (i.e. the improved power distribution unit 32) is connected with the input end of the fixed connector 4, and the output end of the fixed connector 4 is connected with the free end connector 5.
In a possible embodiment, the output of the power distribution unit (i.e. the modified power distribution unit 32) is connected to the input of the fixed connector 4 by means of a plug-in connection.
In a possible embodiment, the fixed connector 4 contains a circuit branch, in which the fuse is connected in series.
In one possible embodiment, the electrical consumer includes a dc converter, an air conditioner, and a heater; the circuit branch comprises a first circuit branch connected with the direct current converter, a second circuit branch connected with the air conditioner and a third circuit branch connected with the heater.
In a possible embodiment, the fixed connector 4 is an aerial socket and the free end connector 5 is an aerial plug; the fixed connector 4 and the free end connector 5 form a pair of aviation plug and socket; the first circuit branch connected with the direct current converter, the second circuit branch connected with the air conditioner and the third circuit branch connected with the heater multiplex a pair of aviation plug and socket.
The utility model provides a distribution box of an external fuse, which comprises: the power distribution unit, the fixed connector and the free end connector, wherein a fuse is arranged in the fixed connector; the input end of the power distribution unit is connected with the anode and the cathode of the battery pack, the output end of the power distribution unit is connected with the input end of the fixed connector, the output end of the fixed connector is connected with the input end of the free end connector, and the output end of the free end connector is connected with the electric appliance. In the embodiment, the external design of the protection fuse of the circuits such as DC/DC, PTC, AC in the original distribution box is realized, the distribution box is not required to be disassembled, the maintenance and the after-sale replacement are convenient and quick, and the time is saved; the DC/DC, PTC, AC and other loop protection fuses in the original power distribution box are reused with a pair of external aviation plug and socket, so that the installation space and the material cost are saved.
In a second aspect, an electrical control system includes the electrical box of the external fuse of the first aspect, a battery pack, and an electrical appliance; the positive pole and the negative pole of battery package with the input of external fuse's block terminal is connected, the output of external fuse's block terminal is connected with the electrical apparatus.
The electric control system provided by the embodiment of the utility model has the same technical characteristics as the distribution box of the external fuse provided by the embodiment of the first aspect, so that the same technical problems can be solved, and the same technical effects can be achieved.
In a third aspect, an electric vehicle includes the electric control system of the second aspect and an electric vehicle body.
The electric automobile provided by the embodiment of the utility model has the same technical characteristics as the electric control system provided by the embodiment of the second aspect, so that the same technical problems can be solved, and the same technical effects can be achieved.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In addition, in the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood by those skilled in the art in specific cases.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, each functional unit in the embodiment of the present utility model may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
Finally, it should be noted that: the above examples are only specific embodiments of the present utility model for illustrating the technical solution of the present utility model, but not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the foregoing examples, it will be understood by those skilled in the art that the present utility model is not limited thereto: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (7)
1. An external fuse's block terminal, characterized in that includes: the power distribution unit, the fixed connector and the free end connector, wherein a fuse is arranged in the fixed connector;
The input end of the power distribution unit is connected with the anode and the cathode of the battery pack, the output end of the power distribution unit is connected with the input end of the fixed connector, the output end of the fixed connector is connected with the input end of the free end connector, and the output end of the free end connector is connected with the electric appliance.
2. The external fuse distribution box of claim 1, wherein the output of the power distribution unit is connected to the input of the fixed connector by plugging.
3. The external fuse block terminal of claim 1, wherein the fixed connector includes a circuit branch, and wherein the fuse is connected in series in the circuit branch.
4. The external fuse block terminal of claim 3, wherein the electrical consumer comprises a dc converter, an air conditioner, and a heater; the circuit branch comprises a first circuit branch connected with the direct current converter, a second circuit branch connected with the air conditioner and a third circuit branch connected with the heater.
5. The external fuse distribution box of claim 4 wherein the fixed connector is an aerial socket and the free end connector is an aerial plug; the fixed connector and the free end connector form an aviation plug and socket; the first circuit branch connected with the direct current converter, the second circuit branch connected with the air conditioner and the third circuit branch connected with the heater multiplex a pair of aviation plug and socket.
6. An electric control system, characterized by comprising the distribution box, the battery pack and the electric appliance of the external fuse of any one of claims 1 to 5; the positive pole and the negative pole of battery package with the input of external fuse's block terminal is connected, the output of external fuse's block terminal is connected with the electrical apparatus.
7. An electric vehicle comprising the electric control system of claim 6 and
An electric automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322550750.3U CN221176849U (en) | 2023-09-19 | 2023-09-19 | Distribution box, electric control system and electric automobile of external fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322550750.3U CN221176849U (en) | 2023-09-19 | 2023-09-19 | Distribution box, electric control system and electric automobile of external fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221176849U true CN221176849U (en) | 2024-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322550750.3U Active CN221176849U (en) | 2023-09-19 | 2023-09-19 | Distribution box, electric control system and electric automobile of external fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221176849U (en) |
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2023
- 2023-09-19 CN CN202322550750.3U patent/CN221176849U/en active Active
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