CN111071047B - Low-cost battery manual service switch - Google Patents

Low-cost battery manual service switch Download PDF

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Publication number
CN111071047B
CN111071047B CN201911354275.4A CN201911354275A CN111071047B CN 111071047 B CN111071047 B CN 111071047B CN 201911354275 A CN201911354275 A CN 201911354275A CN 111071047 B CN111071047 B CN 111071047B
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China
Prior art keywords
battery
service switch
low
manual service
voltage
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Application number
CN201911354275.4A
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Chinese (zh)
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CN111071047A (en
Inventor
范大鹏
李陈勇
薛国正
杨猛
乔笑笑
邓晓光
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Zhejiang Hozon New Energy Automobile Co Ltd
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Zhejiang Hozon New Energy Automobile Co Ltd
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04Cutting off the power supply under fault conditions

Abstract

The invention belongs to the technical field of electric automobiles, and particularly relates to a low-cost battery manual service switch which is used for controlling a battery of a whole automobile, wherein the whole automobile comprises a whole automobile fuse box and a whole automobile high-voltage interlocking loop, the battery comprises a battery pack high-voltage interlocking loop, the battery manual service switch comprises a low-voltage plug connector and a high-voltage safety fuse, the low-voltage plug connector is connected with the battery pack high-voltage interlocking loop and the whole automobile high-voltage interlocking loop so that the battery pack high-voltage interlocking loop is connected in series with the whole automobile high-voltage interlocking loop, the high-voltage safety fuse is connected in series with the whole automobile high-voltage interlocking loop, and the high-voltage safety fuse is arranged in the whole automobile. The technical scheme of the invention not only realizes the function of the traditional MSD, but also reduces the design complexity and the material cost.

Description

Low-cost battery manual service switch
Technical Field
The invention belongs to the technical field of electric automobiles, and particularly relates to a low-cost battery manual service switch.
Background
The current new energy automobile battery generally adopts a high-voltage manual service switch, namely commonly called MSD, and the MSD designed at present needs additional fuses, and the matched fuses need to be made to be large, so that the design is complex, the cost is high, and the part quality is large; MSD is generally directly arranged on a battery pack shell, the requirement on waterproof and dustproof design is particularly high, the design difficulty and cost of the shell are increased, meanwhile, in the process of thermal diffusion, MSD is a weak link, gas and flame can emerge from the MSD, in the prior art, MSD is designed on a battery pack end plate, low-pressure MSD replaces high-pressure MSD, and the scheme still needs certain cost and waterproof and dustproof design requirements.
In view of the above technical problems, it is desirable to improve.
Disclosure of Invention
Based on the above-mentioned deficiencies in the prior art, the present invention provides a low-cost battery manual service switch.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a low-cost battery manual service switch for whole car battery control, whole car includes whole car fuse box, whole car high-pressure interlocking loop, the battery includes battery package high-pressure interlocking loop, battery manual service switch includes low pressure plug connector, high-pressure safety fuse, low pressure plug connector and battery package high-pressure interlocking loop and whole car high-pressure interlocking loop are connected to make battery package high-pressure interlocking loop concatenate in whole car high-pressure interlocking loop, high-pressure safety fuse concatenates and puts in order car high-pressure interlocking loop, high-pressure safety fuse arranges in whole car fuse box.
Preferably, the high-voltage safety fuse is provided with a mark.
Preferably, the identification of the high-voltage safety fuse is different from the identification of other fuses in the fuse box of the whole vehicle.
Preferably, the mark of the high-voltage safety fuse is one or a combination of a shape mark, a color mark, a text label and a text label.
Preferably, the life cycle of the high-voltage safety fuse is more than or equal to 25 times.
Preferably, a tool bin is arranged outside the fuse box of the whole vehicle, and a tool for disassembling the fuse box of the whole vehicle is pre-placed in the tool bin.
Preferably, the IP protection grade of the finished automobile fuse box is greater than or equal to IP 54.
Preferably, the battery further comprises a battery pack controller, and when the whole vehicle is in a running state, the battery pack controller controls the control level of the battery to be greater than the control level of the battery manual service switch.
Compared with the prior art, the invention has the beneficial effects that: the technical scheme of the invention not only realizes the function of the traditional MSD, but also reduces the design complexity and the material cost.
Drawings
FIG. 1 is a schematic diagram of a battery pack portion of a low cost battery manual service switch in accordance with a first embodiment of the present invention;
FIG. 2 is a partial schematic view of a vehicle fuse block of a low cost battery manual service switch according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a high-voltage safety fuse of a low-cost battery manual service switch according to an embodiment of the invention.
Wherein: 1. a battery pack; 2. a low voltage plug connector; 3. a high voltage safety fuse; 4. a battery pack high voltage interlock loop; 5. the whole vehicle fuse box; 6. a whole vehicle high-voltage interlocking loop; 31. identification of high voltage safety fuses.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
The first embodiment is as follows:
as shown in fig. 1 to 3, the low-cost battery manual service switch of the present embodiment is used for controlling the battery manual power-off of the entire vehicle, and replaces the existing MSD with complex design, high cost and large part mass, and includes a high-voltage safety fuse 3 and a low-voltage plug 2.
Specifically, the battery pack 1 comprises a high-voltage interlocking loop in the battery pack 1, the whole vehicle needs to be provided with a corresponding high-voltage interlocking loop or utilizes a self whole vehicle high-voltage interlocking loop 6, a wire harness of the battery pack high-voltage interlocking loop 4 and a wire harness of the whole vehicle high-voltage interlocking loop 6 are connected through a low-voltage plug connector 2, so that the battery pack high-voltage interlocking loop 4 is connected in series with the whole vehicle high-voltage interlocking loop 6, the whole vehicle high-voltage interlocking loop 6 is introduced into a whole vehicle fuse box, a high-voltage safety fuse 3 is arranged in the whole vehicle fuse box, and the high-voltage safety fuse 3 is connected in series with the whole.
The design of this embodiment replaces current MSD through the high-pressure safety fuse 3 in whole car fuse box 5, when needing to give whole car outage, can demolish whole car low pressure fuse box earlier through the instrument, just can directly see this high-pressure safety fuse 3. When the vehicle is powered off by a key or a key, the high-voltage safety fuse 3 can be pulled out, so that the purpose of disconnecting the high-voltage circuit is achieved. This high-pressure safety fuse 3 establishes ties into whole car high-pressure interlocking loop 6, guarantees a lot of plugs, and the whole life is pulled out and is inserted the cycle at least 25 times, marks special label simultaneously, easily discovers, moreover because whole car fuse box 5 is mostly arranged in the passenger cabin, for example near the instrument board, the IP grade requirement is very low, usually IP54 can, preferred, higher IP protection level also is suitable for.
In order to increase the use convenience, a tool bin is arranged outside the whole vehicle fuse box 5, tools for disassembling the whole vehicle fuse box 5 are pre-placed in the tool bin, and various spare fuses can be prevented from being arranged.
The mark 31 of the high-voltage safety fuse is different from marks of other fuses in the fuse box 5 of the whole vehicle, and can be one or a plurality of combinations of shape marks, color marks, character labels and character labels, for example, the marks of the other fuses in the fuse box 5 of the whole vehicle are common white shells and amperage marks, the high-voltage safety fuse 3 is a red shell or other colors different from white, the shell is larger or smaller or different from special-shaped shells of other fuse shells, the high-voltage safety fuse 3 is also provided with the character labels in series, and the prompt of 'extracting the fuse can cause the battery pack 1 to be powered on'.
In order to improve the safety of the whole vehicle, when the whole vehicle is in a running state, the control level of a battery pack controller BMU (battery pack controller) of a battery pack 1 for controlling a battery is greater than the control level of a battery manual service switch for controlling the battery, and when the whole vehicle or a battery pack high-voltage interlocking loop is disconnected for identification and disposal, a program for setting the battery pack controller BMU cannot immediately cut off the battery pack 1 if the vehicle is in the running state, and simultaneously identifies whether a main relay and a negative relay are bonded.
The invention replaces and cancels the design of high-voltage MSD by the high-voltage safety fuse 3 which is easy to identify in the fuse box, thereby reducing the complexity of the design and the material cost.
It should be noted that the above-mentioned only illustrates the preferred embodiments and principles of the present invention, and that those skilled in the art will be able to make modifications to the embodiments based on the idea of the present invention, and that such modifications should be considered as the protection scope of the present invention.

Claims (8)

1. A low-cost battery manual service switch is used for controlling a whole vehicle battery, wherein the whole vehicle comprises a whole vehicle fuse box and a whole vehicle high-voltage interlocking loop, and the battery comprises a battery pack high-voltage interlocking loop;
the high voltage safety fuse replaces the high voltage manual service switch MSD.
2. A low cost battery manual service switch as in claim 1 wherein said high voltage safety fuse is provided with a flag.
3. A low cost battery manual service switch according to claim 2 wherein the identity of said high voltage safety fuse is different from the identity of other fuses within the vehicle fuse box.
4. A low cost battery hand service switch as claimed in any of claims 2 or 3, wherein said high voltage safety fuse identification is one or more of a combination of shape identification, color identification, text label.
5. The low cost battery hand service switch of claim 1, wherein the high voltage safety fuse has a full life insertion cycle of 25 or more.
6. The low-cost battery manual service switch according to claim 1, wherein a tool magazine is provided outside the vehicle fuse box, and a tool for disassembling the vehicle fuse box is pre-placed in the tool magazine.
7. The low-cost battery manual service switch of claim 6, wherein the finished vehicle fuse box has an IP protection rating of greater than or equal to IP 54.
8. The low-cost battery manual service switch according to claim 1, wherein the battery further comprises a battery pack controller, and when the entire vehicle is in a driving state, the battery pack controller controls the control level of the battery to be greater than the control level of the battery manual service switch.
CN201911354275.4A 2019-12-25 2019-12-25 Low-cost battery manual service switch Active CN111071047B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911354275.4A CN111071047B (en) 2019-12-25 2019-12-25 Low-cost battery manual service switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911354275.4A CN111071047B (en) 2019-12-25 2019-12-25 Low-cost battery manual service switch

Publications (2)

Publication Number Publication Date
CN111071047A CN111071047A (en) 2020-04-28
CN111071047B true CN111071047B (en) 2021-07-02

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Citations (11)

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CN202230958U (en) * 2011-09-22 2012-05-23 上海航天电源技术有限责任公司 Manual maintenance switch
DE102012014183A1 (en) * 2012-07-18 2014-05-15 Daimler Ag Circuit arrangement for motor vehicle, has two electric circuits, to which interlock circuit is assigned in each case, and coupling device, which is connected with two interlock circuits and is designed to separate interlock circuits
CN203800515U (en) * 2014-01-27 2014-08-27 上汽通用五菱汽车股份有限公司 High-voltage power distribution box with interlocking protection function
CN104192080A (en) * 2014-09-11 2014-12-10 观致汽车有限公司 Circuit management system and method of vehicle
CN104377684A (en) * 2013-08-13 2015-02-25 上海汽车集团股份有限公司 Interlocking detecting circuit, system and method of high-voltage parts
CN204172704U (en) * 2014-09-11 2015-02-25 观致汽车有限公司 The manual maintenance make and break device of vehicle
CN104494539A (en) * 2015-01-04 2015-04-08 浙江永贵电器股份有限公司 High-voltage maintenance switch box of new energy vehicle
CN104527446A (en) * 2014-12-11 2015-04-22 广州汽车集团股份有限公司 High-pressure safety electric interlocking mechanism of electro-mobile, control method and electro-mobile
DE102013021256A1 (en) * 2013-12-14 2015-06-18 Daimler Ag High-voltage network for a motor vehicle
CN205883187U (en) * 2016-04-08 2017-01-11 深圳市沃特玛电池有限公司 Take manual service switch of MSD of relay
CN110103717A (en) * 2019-04-25 2019-08-09 北京汽车股份有限公司 High-voltage interlocking detection system and vehicle

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US7641499B1 (en) * 2008-08-28 2010-01-05 Delphi Technologies, Inc. High voltage connector and interlocking loop connector assembly
CN202827173U (en) * 2011-12-20 2013-03-27 湖北超亿科技有限公司 Emergency power-off device for electrombile
CN102826017B (en) * 2012-09-06 2015-02-11 浙江吉利汽车研究院有限公司杭州分公司 High-voltage safety protection system of electromobile
CN202839883U (en) * 2012-09-28 2013-03-27 比亚迪股份有限公司 Power battery pack
CN106671814A (en) * 2016-12-29 2017-05-17 力帆实业(集团)股份有限公司 Active safety protection system for power battery pack of electric automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202230958U (en) * 2011-09-22 2012-05-23 上海航天电源技术有限责任公司 Manual maintenance switch
DE102012014183A1 (en) * 2012-07-18 2014-05-15 Daimler Ag Circuit arrangement for motor vehicle, has two electric circuits, to which interlock circuit is assigned in each case, and coupling device, which is connected with two interlock circuits and is designed to separate interlock circuits
CN104377684A (en) * 2013-08-13 2015-02-25 上海汽车集团股份有限公司 Interlocking detecting circuit, system and method of high-voltage parts
DE102013021256A1 (en) * 2013-12-14 2015-06-18 Daimler Ag High-voltage network for a motor vehicle
CN203800515U (en) * 2014-01-27 2014-08-27 上汽通用五菱汽车股份有限公司 High-voltage power distribution box with interlocking protection function
CN104192080A (en) * 2014-09-11 2014-12-10 观致汽车有限公司 Circuit management system and method of vehicle
CN204172704U (en) * 2014-09-11 2015-02-25 观致汽车有限公司 The manual maintenance make and break device of vehicle
CN104527446A (en) * 2014-12-11 2015-04-22 广州汽车集团股份有限公司 High-pressure safety electric interlocking mechanism of electro-mobile, control method and electro-mobile
CN104494539A (en) * 2015-01-04 2015-04-08 浙江永贵电器股份有限公司 High-voltage maintenance switch box of new energy vehicle
CN205883187U (en) * 2016-04-08 2017-01-11 深圳市沃特玛电池有限公司 Take manual service switch of MSD of relay
CN110103717A (en) * 2019-04-25 2019-08-09 北京汽车股份有限公司 High-voltage interlocking detection system and vehicle

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