CN112186856B - Control system and method for preventing fire caused by overload of battery wire - Google Patents
Control system and method for preventing fire caused by overload of battery wire Download PDFInfo
- Publication number
- CN112186856B CN112186856B CN202011061884.3A CN202011061884A CN112186856B CN 112186856 B CN112186856 B CN 112186856B CN 202011061884 A CN202011061884 A CN 202011061884A CN 112186856 B CN112186856 B CN 112186856B
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- controller
- battery
- temperature
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/046—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a thermocouple
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
Abstract
The invention discloses a control system and a method for preventing fire caused by overload of a battery line, wherein the control system comprises a controller, a temperature detection component, a power supply relay and an alarm component; the temperature detection part is connected with the controller and is used for transmitting the detected temperature information of the battery wire to the controller; the normally closed contact of the power supply relay is connected in series in the power line of the storage battery, and the coil of the power supply relay is connected with the controller, so that the power supply relay is opened and closed, and a power supply circuit of the storage battery is switched on and off; the alarm component is connected with the controller, and the controller judges by receiving the temperature information of the battery wire. The invention reduces the probability of fire disaster of the excavator, thereby greatly reducing the repair cost of the excavator.
Description
Technical Field
The invention relates to the field of excavator storage batteries, in particular to a control system for preventing fire caused by overload of a storage battery wire.
Background
At present, manufacturers propose that a smoke sensor and a carbon monoxide sensor are adopted to detect the occurrence of a fire disaster of an excavator, and at the moment, an open fire is formed, so that the fire disaster is difficult to be artificially extinguished in time.
In the fire disaster of the excavator, the reason of a large proportion is that the storage battery line is exposed to fire after being overloaded, and then other inflammable substances are ignited to cause the fire disaster of the whole excavator, so that economic loss is caused.
Disclosure of Invention
In light of the deficiencies of the prior art, the present invention provides a control system and method for preventing fire caused by overloading a battery line. The invention is realized according to the following technical scheme:
a control system for preventing a fire caused by an overload of a battery line, comprising:
a controller;
the temperature detection component is connected with the controller and is used for transmitting the detected temperature information of the battery wire to the controller;
the normally closed contact of the power supply relay is connected in series in the power line of the storage battery, and the coil of the power supply relay is connected with the controller, so that the power supply relay is opened and closed, and a power supply circuit of the storage battery is switched on and off;
the alarm component is connected with the controller, and the controller judges by receiving the temperature information of the battery wire;
wherein, when storage battery line temperature exceeded M ℃ the controller began the warning timing:
if the temperature of the battery wire is reduced to be below M ℃ within N seconds, the controller stops alarming and timing;
if the temperature of the battery wire continuously rises within N seconds but does not exceed M +10 ℃, the controller starts new N seconds to repeatedly time after N seconds;
if the temperature of the battery line is continuously increased within N seconds and exceeds M +10 ℃ and is lower than M +20 ℃, the controller transmits alarm information to an alarm part for alarming, and prompts a driver to close high-power electric equipment or to check the power utilization of the whole vehicle;
if the temperature of the battery line continuously rises to exceed M +20 ℃ within N seconds, the controller controls the power supply relay to be closed, alarm information is transmitted to the alarm part to give an alarm, and a driver is prompted to check the power utilization of the whole vehicle.
Furthermore, the storage battery is connected with a power supply relay through a storage battery wire, and the power supply relay is connected with the fuse box through the storage battery wire; the temperature detection part adopts a thermocouple which is welded on a battery wire between the power supply relay and the fuse box.
Furthermore, the alarm component adopts an instrument, and the instrument is connected with the controller through a CAN bus.
Further, the value of M is 70.
Further, the value of N is 30.
A control method for preventing fire caused by overload of a battery line comprises the following steps:
the detected temperature information of the battery line is transmitted to the controller through the temperature detection component;
the controller controls the on and off of a power supply relay positioned in a power line of the storage battery so as to switch on and off a power supply circuit of the storage battery;
the controller judges by receiving the temperature information of the battery wire, and the judging process is as follows:
when the temperature of the battery wire exceeds M ℃, the controller starts alarming and timing:
if the temperature of the battery wire is reduced to be below M ℃ within N seconds, the controller stops alarming and timing;
if the temperature of the battery wire continuously rises within N seconds but does not exceed M +10 ℃, the controller starts new N seconds to repeatedly time after N seconds;
if the temperature of the battery line is continuously increased within N seconds and exceeds M +10 ℃ and is lower than M +20 ℃, the controller transmits alarm information to an alarm part for alarming, and prompts a driver to close high-power electric equipment or to check the power utilization of the whole vehicle;
if the temperature of the battery line continuously rises to exceed M +20 ℃ within N seconds, the controller controls the power supply relay to be closed, alarm information is transmitted to the alarm part to give an alarm, and a driver is prompted to check the power utilization of the whole vehicle.
The invention has the beneficial effects that:
as long as the excavator is in fire, most construction sites are far away from cities, and timely rescue is difficult to achieve. The repair cost of the excavator after fire disaster accounts for more than 50% of the price of the whole excavator, and for example, the repair cost is up to 100 ten thousand for one 50-ton excavator.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic diagram of a control system of the present invention;
FIG. 2 is a flow chart of a control method of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
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 will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a control system for preventing a fire caused by an overload of a battery line includes a controller, a temperature detecting part, a power relay, and an alarm part; the temperature detection part is connected with the controller and is used for transmitting the detected temperature information of the battery wire to the controller; the normally closed contact of the power supply relay is connected in series in the power line of the storage battery, and the coil of the power supply relay is connected with the controller, so that the power supply relay is opened and closed, and a power supply circuit of the storage battery is switched on and off; the alarm component is connected with the controller, and the controller judges by receiving the temperature information of the battery wire.
Wherein, when storage battery line temperature exceeded M ℃ the controller began the warning timing:
if the temperature of the battery wire is reduced to below 70 ℃ within 30 seconds, the controller stops alarming and timing;
if the temperature of the battery wire continuously rises within 30 seconds but does not exceed 80 ℃, the controller starts to repeat timing within 30 seconds;
if the temperature of the battery line is continuously increased within 30 seconds and exceeds 80 ℃ and is lower than 90 ℃, the controller transmits alarm information to an alarm part for alarming, and prompts a driver to close high-power electric equipment or to check the power utilization of the whole vehicle;
if the temperature of the battery wire continuously rises to be higher than 90 ℃ within 30 seconds, the controller controls the power supply relay to be closed, so that no current exists on the battery wire, alarm information is transmitted to the alarm part to give an alarm, and a driver is prompted to check the power utilization of the whole vehicle.
Continuing to refer to fig. 1, the storage battery is connected with a power supply relay through a storage battery wire, and the power supply relay is connected with a fuse box through the storage battery wire; the temperature detection part adopts a thermocouple which is welded on a battery wire between the power supply relay and the fuse box.
With reference to fig. 1, the alarm component is an instrument with an audible and visual alarm function, and the instrument is connected to the controller through a CAN bus for data interaction.
As shown in fig. 2, a control method for preventing fire caused by overload of a battery line includes:
the detected temperature information of the battery line is transmitted to the controller through the temperature detection component;
the controller controls the on and off of a power supply relay positioned in a power line of the storage battery so as to switch on and off a power supply circuit of the storage battery;
the controller judges by receiving the temperature information of the battery wire, and the judging process is as follows:
when the temperature of the battery wire exceeds 70 ℃, the controller starts alarming and timing:
if the temperature of the battery wire is reduced to below 70 ℃ within 30 seconds, the controller stops alarming and timing;
if the temperature of the battery wire continuously rises within 30 seconds but does not exceed 80 ℃, the controller starts to repeat timing within 30 seconds;
if the temperature of the battery line is continuously increased within 30 seconds and exceeds 80 ℃ and is lower than 90 ℃, the controller transmits alarm information to an alarm part for alarming, and prompts a driver to close high-power electric equipment or to check the power utilization of the whole vehicle;
if the temperature of the battery wire continuously rises to be higher than 90 ℃ within 30 seconds, the controller controls the power supply relay to be closed, so that no current exists on the battery wire, alarm information is transmitted to the alarm part to give an alarm, and a driver is prompted to check the power utilization of the whole vehicle.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A control system for preventing fire caused by overload of a battery line is characterized by comprising:
a controller;
the temperature detection component is connected with the controller and is used for transmitting the detected temperature information of the battery wire to the controller;
the normally closed contact of the power supply relay is connected in series in the power line of the storage battery, and the coil of the power supply relay is connected with the controller, so that the power supply relay is opened and closed, and a power supply circuit of the storage battery is switched on and off;
the alarm component is connected with the controller, and the controller judges by receiving the temperature information of the battery wire;
wherein, when storage battery line temperature exceeded M ℃ the controller began the warning timing:
if the temperature of the battery wire is reduced to be below M ℃ within N seconds, the controller stops alarming and timing;
if the temperature of the battery wire continuously rises within N seconds but does not exceed M +10 ℃, the controller starts new N seconds to repeatedly time after N seconds;
if the temperature of the battery line is continuously increased within N seconds and exceeds M +10 ℃ and is lower than M +20 ℃, the controller transmits alarm information to an alarm part for alarming, and prompts a driver to close high-power electric equipment or to check the power utilization of the whole vehicle;
if the temperature of the battery line continuously rises to exceed M +20 ℃ within N seconds, the controller controls the power supply relay to be closed, alarm information is transmitted to the alarm part to give an alarm, and a driver is prompted to check the power utilization of the whole vehicle.
2. The control system for preventing fire caused by overload of battery line as claimed in claim 1, wherein:
the storage battery is connected with a power supply relay through a storage battery wire, and the power supply relay is connected with the fuse box through the storage battery wire;
the temperature detection part adopts a thermocouple which is welded on a battery wire between the power supply relay and the fuse box.
3. The control system for preventing fire caused by overload of battery line as claimed in claim 1, wherein:
the alarm component adopts an instrument, and the instrument is connected with the controller through a CAN bus.
4. The control system for preventing fire caused by overload of battery line as claimed in claim 1, wherein:
the value of M is 70.
5. The control system for preventing fire caused by overload of battery line as claimed in claim 1, wherein:
the value of N is 30.
6. A control method for preventing fire caused by overload of a battery line is characterized by comprising the following steps:
the detected temperature information of the battery line is transmitted to the controller through the temperature detection component;
the controller controls the on and off of a power supply relay positioned in a power line of the storage battery so as to switch on and off a power supply circuit of the storage battery;
the controller judges by receiving the temperature information of the battery wire, and the judging process is as follows:
when the temperature of the battery wire exceeds M ℃, the controller starts alarming and timing:
if the temperature of the battery wire is reduced to be below M ℃ within N seconds, the controller stops alarming and timing;
if the temperature of the battery wire continuously rises within N seconds but does not exceed M +10 ℃, the controller starts new N seconds to repeatedly time after N seconds;
if the temperature of the battery line is continuously increased within N seconds and exceeds M +10 ℃ and is lower than M +20 ℃, the controller transmits alarm information to an alarm part for alarming, and prompts a driver to close high-power electric equipment or to check the power utilization of the whole vehicle;
if the temperature of the battery line continuously rises to exceed M +20 ℃ within N seconds, the controller controls the power supply relay to be closed, alarm information is transmitted to the alarm part to give an alarm, and a driver is prompted to check the power utilization of the whole vehicle.
7. The control method for preventing fire caused by overload of battery wires as claimed in claim 6, wherein:
the value of M is 70.
8. The control method for preventing fire caused by overload of battery wires as claimed in claim 6, wherein:
the value of N is 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061884.3A CN112186856B (en) | 2020-09-30 | 2020-09-30 | Control system and method for preventing fire caused by overload of battery wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061884.3A CN112186856B (en) | 2020-09-30 | 2020-09-30 | Control system and method for preventing fire caused by overload of battery wire |
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| Publication Number | Publication Date |
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| CN112186856A CN112186856A (en) | 2021-01-05 |
| CN112186856B true CN112186856B (en) | 2022-02-22 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB937813A (en) * | 1960-10-03 | 1963-09-25 | Gjerken Elektro As | Improvements in and relating to electric temperature and fire alarm systems |
| TWM255427U (en) * | 2004-04-23 | 2005-01-11 | Jian-Chiou Lian | Over-temperature alarm protection device |
| CN203616017U (en) * | 2013-11-21 | 2014-05-28 | 国家电网公司 | Conducting wire over-temperature alarm device |
| CN103935936A (en) * | 2014-04-10 | 2014-07-23 | 季全亮 | Storage battery type forklift overload protection device |
| CN107069672A (en) * | 2017-04-06 | 2017-08-18 | 六安市同心畅能电子科技有限公司 | A kind of battery overload short circuit automatic power-off protection circuit |
| CN209182948U (en) * | 2018-12-28 | 2019-07-30 | 天津市明科远景科技发展有限公司 | A kind of intelligent smoke alarm |
| CN110509813A (en) * | 2019-09-03 | 2019-11-29 | 海汇新能源汽车有限公司 | A kind of batteries of electric automobile fire alarm method |
| CN110525219A (en) * | 2019-09-04 | 2019-12-03 | 江铃汽车股份有限公司 | A kind of detection of power battery pack thermal runaway and protective device and its method of electric car |
| CN211000957U (en) * | 2019-12-04 | 2020-07-14 | 湖北北风之神科技有限公司 | Battery car fire hazard prevention warning charger |
| CN211236626U (en) * | 2019-12-20 | 2020-08-11 | 贵州师范学院 | Electrical apparatus safety monitoring and control system |
-
2020
- 2020-09-30 CN CN202011061884.3A patent/CN112186856B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB937813A (en) * | 1960-10-03 | 1963-09-25 | Gjerken Elektro As | Improvements in and relating to electric temperature and fire alarm systems |
| TWM255427U (en) * | 2004-04-23 | 2005-01-11 | Jian-Chiou Lian | Over-temperature alarm protection device |
| CN203616017U (en) * | 2013-11-21 | 2014-05-28 | 国家电网公司 | Conducting wire over-temperature alarm device |
| CN103935936A (en) * | 2014-04-10 | 2014-07-23 | 季全亮 | Storage battery type forklift overload protection device |
| CN107069672A (en) * | 2017-04-06 | 2017-08-18 | 六安市同心畅能电子科技有限公司 | A kind of battery overload short circuit automatic power-off protection circuit |
| CN209182948U (en) * | 2018-12-28 | 2019-07-30 | 天津市明科远景科技发展有限公司 | A kind of intelligent smoke alarm |
| CN110509813A (en) * | 2019-09-03 | 2019-11-29 | 海汇新能源汽车有限公司 | A kind of batteries of electric automobile fire alarm method |
| CN110525219A (en) * | 2019-09-04 | 2019-12-03 | 江铃汽车股份有限公司 | A kind of detection of power battery pack thermal runaway and protective device and its method of electric car |
| CN211000957U (en) * | 2019-12-04 | 2020-07-14 | 湖北北风之神科技有限公司 | Battery car fire hazard prevention warning charger |
| CN211236626U (en) * | 2019-12-20 | 2020-08-11 | 贵州师范学院 | Electrical apparatus safety monitoring and control system |
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| CN112186856A (en) | 2021-01-05 |
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