CN204249831U - Electric automobile high-voltage power distribution protective device - Google Patents
Electric automobile high-voltage power distribution protective device Download PDFInfo
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- CN204249831U CN204249831U CN201420672745.8U CN201420672745U CN204249831U CN 204249831 U CN204249831 U CN 204249831U CN 201420672745 U CN201420672745 U CN 201420672745U CN 204249831 U CN204249831 U CN 204249831U
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Abstract
The utility model proposes a kind of electric automobile high-voltage power distribution protective device, comprise: the first chip safety device, second chip safety device, high voltage-small current tubular type safety device, first chip safety device one end connects power accumulator group positive pole, the described first chip safety device other end connects second chip safety device one end and high voltage-small current tubular type safety device one end respectively, the described second chip safety device other end connects contactless switch one end, the described contactless switch other end connects power motor controller one end, the described power motor controller other end connects power accumulator group negative pole, the described high voltage-small current tubular type safety device other end connects high tension transformer input positive pole.
Description
Technical field
The utility model relates to electronic circuit field, particularly relates to a kind of electric automobile high-voltage power distribution protective device.
Background technology
On electronlmobil, storage battery power system should provide the working current needed in traveling to power motor, also to provide working current to each low-voltage power supply system on car, difference along with weather also needs to provide working current to ptc heater or compressor assembly, this just needs distribution or the current limit of above-mentioned using electricity system being carried out to size of current, particularly when short trouble appears in said system, to ensure vehicle Electrical Safety.
Utility model content
The utility model is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of electric automobile high-voltage power distribution protective device.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of electric automobile high-voltage power distribution protective device, and its key is, comprising: the first safety device and N road load protection circuit, and described N is positive integer,
Each road load protection circuit described comprises second safety device,
First safety device one end connects power accumulator group E1 positive pole, the first safety device other end connects second safety device one end, the described second safety device other end connects one end of relay output loop, the other end of described relay output loop connects the Enable Pin of DC converter, the second safety device other end also connects the input positive terminal of DC converter, the input circuit other end of DC converter connects power accumulator group E1 negative pole, and the output loop of DC converter connects low-voltage load.
The beneficial effect of technique scheme is: be convenient to searching of failure circuit and trouble unit; Improve reliability and the safety of high voltage circuit.
Described electric automobile high-voltage power distribution protective device, preferably, also comprises ptc heater and compressor controller protective circuit, and described ptc heater and compressor controller protective circuit comprise third high pressure safety device,
Described third high pressure safety device one end connects the first safety device other end, the described third high pressure safety device other end connects one end of the 3rd contactless switch output loop, the other end of described 3rd contactless switch output loop connects PTC heating controller and compressor controller, and described PTC heating controller is connected with the other end of compressor controller and connects power accumulator group E1 negative pole.
The beneficial effect of technique scheme is: by safety device protection ptc heater and compressor controller protective circuit.
Described electric automobile high-voltage power distribution protective device, preferably, also comprises power motor controller protective circuit, and described power motor controller protective circuit comprises the 4th high-voltage insurance device,
Described 4th high-voltage insurance device one end connects the first safety device other end, the described 4th high-voltage insurance device other end connects one end of the second contactless switch output loop, the other end of described second contactless switch output loop connects power motor controller, and the other end of described power motor controller connects power accumulator group E1 negative pole.
Described electric automobile high-voltage power distribution protective device, preferably, in the load protection circuit of described N road, the model of the second safety device is identical.
Described electric automobile high-voltage power distribution protective device, preferably, in the load protection circuit of described N road, the model of the second safety device is not identical.
Described electric automobile high-voltage power distribution protective device, preferably, described first safety device is 250A safety device.
Described electric automobile high-voltage power distribution protective device, preferably, described third high pressure safety device is 20A safety device.
Described electric automobile high-voltage power distribution protective device, preferably, described 4th high-voltage insurance device is 160A safety device.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Be convenient to searching of failure circuit and trouble unit; Improve reliability and the safety of high voltage circuit.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the utility model electric automobile high-voltage power distribution protective device schematic diagram.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The utility model provides a kind of electric automobile high-voltage power distribution protective device, and its key is, comprising: the first safety device and N road load protection circuit, and described N is positive integer,
Each road load protection circuit described comprises second safety device,
First safety device one end connects power accumulator group E1 positive pole, the first safety device other end connects second safety device one end, the described second safety device other end connects one end of relay output loop, the other end of described relay output loop connects the Enable Pin of DC converter, the second safety device other end also connects the input positive terminal of DC converter, the input circuit other end of DC converter connects power accumulator group E1 negative pole, and the output loop of DC converter connects low-voltage load.
The beneficial effect of technique scheme is: be convenient to searching of failure circuit and trouble unit; Improve reliability and the safety of high voltage circuit.
Described electric automobile high-voltage power distribution protective device, preferably, also comprises ptc heater and compressor controller protective circuit, and described ptc heater and compressor controller protective circuit comprise third high pressure safety device,
Described third high pressure safety device one end connects the first safety device other end, the described third high pressure safety device other end connects one end of the 3rd contactless switch output loop, the other end of described 3rd contactless switch output loop connects PTC heating controller and compressor controller, and described PTC heating controller is connected with the other end of compressor controller and connects power accumulator group E1 negative pole.
The beneficial effect of technique scheme is: by safety device protection ptc heater and compressor controller protective circuit.
Described electric automobile high-voltage power distribution protective device, preferably, also comprises power motor controller protective circuit, and described power motor controller protective circuit comprises the 4th high-voltage insurance device,
Described 4th high-voltage insurance device one end connects the first safety device other end, the described 4th high-voltage insurance device other end connects one end of the second contactless switch output loop, the other end of described second contactless switch output loop connects power motor controller, and the other end of described power motor controller connects power accumulator group E1 negative pole.
Described electric automobile high-voltage power distribution protective device, preferably, in the load protection circuit of described N road, the model of the second safety device is identical.
Described electric automobile high-voltage power distribution protective device, preferably, in the load protection circuit of described N road, the model of the second safety device is not identical.
Described electric automobile high-voltage power distribution protective device, preferably, described first safety device is 250A safety device.
Described electric automobile high-voltage power distribution protective device, preferably, described third high pressure safety device is 20A safety device.
Described electric automobile high-voltage power distribution protective device, preferably, described 4th high-voltage insurance device is 160A safety device.
The purpose of this utility model is to provide a kind of electric automobile high-voltage distribution and fender guard, sees Fig. 1, and in figure, FS1, FS5 are chip insurance, and FS2, FS3, FS4, FS6 are tubular type insurance, and J1 is relay, and J2, J3 are contactless switch.This device is the use power according to high voltage component each on car, by independently select different conductor cross-section sum current insurance values distribute electric energy and realize protection, specifically:
1, the DC converter 1,2,3 of low-voltage load system is adopted independent 1.25 square millimeter wires and powered through 10A protective tube current limit;
2, independent 25 square millimeter wires are adopted to high voltage power electric machine controller load system and powers through 160A protective tube current limit;
3, high pressure P TC temperature booster and compressor controller load system are adopted independent 3 square millimeter wires and powered through 20A protective tube current limit.
When circuit is normal, above-mentioned three separate high pressure circuit give the load supplying on respective circuit; When if certain reason makes DC converter 1 occur short circuit, then there is the short circuit current considerably beyond 10A in the input end of DC converter 1,10A protective tube is exceedingly fast fusing of being heated, the input end of fault DC converter 1 and high voltage circuit are kept apart, thus achieve in DC converter 1 situation in bad order, the object that other high voltage component still can normally work;
If when certain reason makes ptc heater or compressor controller occur short trouble, with DC converter 1, its analytic process occurs that short trouble is identical;
Electric machine controller occurs that the possibility of short trouble is minimum, this is because electric machine controller itself has excess current protective function, when there is excess current in electric machine controller loop, electric machine controller can limit the increase of supply current, if restriction incessantly, electric machine controller can disconnect the contact of contactless switch J2 by 19 pin output signals, realize protection; If the failure of electric machine controller autoprotection, safety plate FS5 also finally can reach the object of short-circuit protection.
The beneficial effects of the utility model are:
Be convenient to searching of failure circuit and trouble unit;
Improve reliability and the safety of high voltage circuit.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (8)
1. an electric automobile high-voltage power distribution protective device, is characterized in that, comprising: the first safety device and N road load protection circuit, and described N is positive integer,
Each road load protection circuit described comprises second safety device,
First safety device one end connects power accumulator group (E1) positive pole, the first safety device other end connects second safety device one end, the described second safety device other end connects one end of relay output loop, the other end of described relay output loop connects the Enable Pin of DC converter, the second safety device other end also connects the input positive terminal of DC converter, the input circuit other end of DC converter connects power accumulator group (E1) negative pole, and the output loop of DC converter connects low-voltage load.
2. electric automobile high-voltage power distribution protective device according to claim 1, is characterized in that, also comprises ptc heater and compressor controller protective circuit, and described ptc heater and compressor controller protective circuit comprise third high pressure safety device,
Described third high pressure safety device one end connects the first safety device other end, the described third high pressure safety device other end connects one end of the 3rd contactless switch output loop, the other end of described 3rd contactless switch output loop connects PTC heating controller and compressor controller, and described PTC heating controller is connected with the other end of compressor controller and connects power accumulator group (E1) negative pole.
3. electric automobile high-voltage power distribution protective device according to claim 1 and 2, is characterized in that, also comprises power motor controller protective circuit, and described power motor controller protective circuit comprises the 4th high-voltage insurance device,
Described 4th high-voltage insurance device one end connects the first safety device other end, the described 4th high-voltage insurance device other end connects one end of the second contactless switch output loop, the other end of described second contactless switch output loop connects power motor controller, and the other end of described power motor controller connects power accumulator group (E1) negative pole.
4. electric automobile high-voltage power distribution protective device according to claim 1, is characterized in that, in the load protection circuit of described N road, the model of the second safety device is identical.
5. electric automobile high-voltage power distribution protective device according to claim 1, is characterized in that, in the load protection circuit of described N road, the model of the second safety device is not identical.
6. electric automobile high-voltage power distribution protective device according to claim 1, is characterized in that, described first safety device is 250A safety device.
7. electric automobile high-voltage power distribution protective device according to claim 2, is characterized in that, described third high pressure safety device is 20A safety device.
8. electric automobile high-voltage power distribution protective device according to claim 3, is characterized in that, described 4th high-voltage insurance device is 160A safety device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672745.8U CN204249831U (en) | 2014-11-12 | 2014-11-12 | Electric automobile high-voltage power distribution protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672745.8U CN204249831U (en) | 2014-11-12 | 2014-11-12 | Electric automobile high-voltage power distribution protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204249831U true CN204249831U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672745.8U Active CN204249831U (en) | 2014-11-12 | 2014-11-12 | Electric automobile high-voltage power distribution protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204249831U (en) |
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2014
- 2014-11-12 CN CN201420672745.8U patent/CN204249831U/en active Active
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