CN111030199A - Secondary assembled battery with space isolation working temperature difference - Google Patents
Secondary assembled battery with space isolation working temperature difference Download PDFInfo
- Publication number
- CN111030199A CN111030199A CN201811172344.5A CN201811172344A CN111030199A CN 111030199 A CN111030199 A CN 111030199A CN 201811172344 A CN201811172344 A CN 201811172344A CN 111030199 A CN111030199 A CN 111030199A
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- China
- Prior art keywords
- secondary battery
- battery pack
- state detection
- detection unit
- heat dissipation
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
Abstract
The invention discloses a secondary assembled battery with space isolation working temperature difference, which is characterized in that a plurality of secondary battery packs and a charge balance system connected with the secondary battery packs are arranged in a box body, wherein the charge balance system is provided with a heat consumption element and a battery state detection unit; the battery pack temperature monitoring device is characterized in that a heat consumption chamber and an accommodating chamber are arranged in the box body in a separated mode, the heat consumption chamber is used for accommodating the heat consumption elements, the accommodating chamber is used for accommodating the secondary battery packs and the battery state detection unit, and accordingly the temperature of the heat consumption elements is isolated through the independent chambers, and the phenomenon that the working temperature of the heat consumption elements influences the normal operation of the secondary battery packs is avoided.
Description
Technical Field
The present invention relates to a secondary assembled battery, and more particularly, to a secondary assembled battery having a charge balance system.
Background
At present, in order to avoid overcharge of the secondary assembled battery, a charge balance system is provided as charge management of the secondary assembled battery, the charge balance system is mainly provided with at least one heat dissipation element as a battery balance means, in order to avoid that the working temperature of the heat dissipation element affects the normal operation of the battery, therefore, as in taiwan I584515 and us 14/584577, a metal heat dissipation plate installed outside the battery box is matched with the battery box made of metal, and a heat dissipation element with higher power is selected to be arranged on the heat dissipation plate, thereby achieving the charge balance operation of the secondary assembled battery.
It should be noted that the heat dissipation element and the metal heat dissipation plate are both disposed outside the battery case, and the metal heat dissipation plate is only used for heat dissipation, and cannot provide a complete shielding protection function for the charge balance system, so that the defect of insufficient protection is highlighted; moreover, the metal heat dissipation plate and the heat dissipation element are arranged outside the battery box in a protruding manner, so that the metal heat dissipation plate and the heat dissipation element are often damaged by collision in practice, and the secondary battery pack operated in parallel with the metal heat dissipation plate and the heat dissipation element is further damaged, thereby generating the doubtful safety, namely, the battery box structure is redesigned to avoid the doubtful safety of the secondary assembled battery caused by the collision damage of the objects of the charge balance system; in addition, it is also necessary to consider that the operating temperature generated by the heat dissipation element is higher than the normal operating temperature of the secondary battery pack, and when the ambient temperature of the secondary battery pack is higher than the normal operating temperature, the secondary battery pack is very likely to have adverse effects, such as unstable charging and discharging or reduced efficiency, so that the relatively high operating temperature of the heat dissipation element cannot affect the normal operating temperature of the secondary battery pack, and therefore, a secondary battery with high safety and effectively isolating the operating temperature of the heat dissipation element is required.
As in US2005/0110460, a battery box is also used as a plurality of secondary batteries, and a charge balancing system is provided outside the battery box, so that the overcharge and discharge device of the above case has a high safety risk of collision and damage; the circuit assembly of the charge balance system and the heat dissipation element are arranged in the same space, the heat dissipation element has long service life and better temperature resistance than the circuit assembly of the charge balance system in the same space, so that the relatively high working temperature of the heat dissipation element easily generates adverse effects on the circuit assembly of the charge balance system, and a secondary battery with high safety and effectively isolating the working temperature of the heat dissipation element is needed.
Disclosure of Invention
The present invention provides a secondary assembled battery with spatially isolated operating temperature differences, and the primary objective of the present invention is to avoid damage to a charge balancing system and to reliably isolate the operating temperature generated by a heat dissipation element from affecting the normal operating temperature of a secondary battery pack, thereby improving the safety of the operation of the secondary assembled battery.
Another objective of the present invention is to individually protect and replace the secondary battery pack of an individual module during overcharge and discharge so as to achieve the effects of reliable protection and fast maintenance.
To achieve the above object, a first embodiment of the present invention provides a secondary battery pack for spatially isolating an operating temperature difference, comprising: the battery charger comprises a box body, a heat dissipation plate, at least one secondary battery pack and a charge balance system, wherein the heat dissipation plate is arranged in the box body and is made of metal materials, the charge balance system is respectively provided with at least one battery state detection unit and at least one heat consumption element which are electrically connected, and the heat consumption elements are used for consuming the overcharge energy of the secondary battery packs.
The box body is internally provided with a heat consumption chamber and an accommodating chamber which are separated into two independent concave space forms by a partition plate, the heat dissipation plate and the heat consumption element are fixedly arranged in the heat consumption chamber, the secondary battery pack and the battery state detection unit are arranged in the accommodating chamber, the battery state detection unit is electrically connected with the secondary battery pack, the battery state detection unit and the corresponding secondary battery pack are electrically connected into a module form, and the battery state detection unit detects the state of the corresponding secondary battery pack in the same module and controls the charging and discharging of each secondary battery pack.
Therefore, the heat consumption chamber and the accommodating chamber of the box body isolate elements with working temperature difference, namely, the heat consumption element with relatively high working temperature is generated to be isolated from the battery state detection unit and the secondary battery pack which need to keep relatively low working temperature, and the battery state detection unit respectively and independently detects the potential of each secondary battery pack and controls each secondary battery pack to release electric energy to the heat consumption element.
As can be seen from the foregoing, the present invention mainly arranges the heat dissipation element and the heat dissipation plate, which generate relatively high operating temperatures in the charge balance system, in the heat dissipation chamber independently, so as to be separated from the battery state detection unit of the charge balance system and the secondary battery packs, which must maintain relatively low operating temperatures, in the accommodating chamber of the case, thereby reliably isolating the temperature of the heat dissipation element by means of spatial separation, and preventing the relatively high operating temperatures of the heat dissipation element from affecting the secondary battery packs and the battery state detection unit, so that the secondary battery packs and the battery state detection unit can operate at relatively low normal operating temperatures.
Furthermore, the secondary battery packs and the charge balance systems are arranged in the box body, and the protection performance of the charge balance systems is improved through the protection of the box body, so that the safety of the charge balance systems is achieved.
Moreover, the battery state detection unit is used for independently detecting the potential of each secondary battery pack to protect the respective secondary battery pack, so that when the specific secondary battery pack fails, the secondary battery pack and the battery state detection unit can be directly replaced by a module without replacing the undamaged secondary battery pack and a heat consumption element with a longer service life, and the effects of real protection and quick maintenance are achieved.
Drawings
Fig. 1 is a perspective view schematically showing a first embodiment of the present invention.
Fig. 2 is a perspective view of the first embodiment of the present invention.
Fig. 3 is a circuit diagram of the first embodiment of the invention.
Fig. 4 is a schematic structural diagram of the first embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a first preferred implementation of the second embodiment of the invention.
FIG. 7 is a circuit diagram illustrating a first preferred implementation of the second embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a second preferred implementation of the second embodiment of the invention.
Description of the reference numerals
Heat-loss chamber 11
Heat sink 20
Battery state detection units 41, 61
Detecting unit 611
Connector set 50
A temperature switch 80.
Detailed Description
The present invention provides a secondary battery assembly with spatially separated operating temperature differences, which in a first embodiment, as shown in fig. 1, 2, 3 and 4, comprises: a box body 10, which has a concave space with an opening form formed inside, and a partition board 10A is arranged along the opening to the bottom of the internal space of the box body 10, so as to divide the internal space of the box body 10 into two heat dissipation chambers 11 and an accommodating chamber 12 which are isolated from each other and are independent and separated, and each heat dissipation chamber is in a concave space form.
A heat dissipation plate 20 fixed in the heat dissipation chamber 11, wherein the heat dissipation plate 20 is made of metal material.
At least one secondary battery pack 30 is disposed in the accommodating chamber 12, and in the present embodiment, the secondary battery packs 30 are respectively composed of a plurality of secondary batteries.
A charge balance system 40, the charge balance system 40 respectively having at least one battery state detection unit 41 and at least one heat dissipation element 42, the battery state detection unit 41 is installed in the accommodation chamber 12, the battery state detection units 41 are electrically connected to the corresponding secondary battery packs 30, the battery state detection unit 41 is electrically connected to the corresponding secondary battery pack 30 in a module form, the battery state detection unit 41 detects the state of the corresponding secondary battery pack 30 in the same module, to facilitate the reliable detection of the integrity of the secondary battery pack 30 for quick maintenance or replacement, the battery state detecting unit 41 detects the voltage of each secondary battery pack 30 as a means, and controls the charging and discharging of each secondary battery pack 30, to maintain a normal operating temperature low with respect to the operating temperature of the heat dissipating element 42; the heat dissipation element 42 is fixedly disposed in the heat dissipation chamber 11, the battery status detecting unit 41 is electrically connected to the heat dissipation element 42, the heat dissipation element 42 is used for dissipating the overcharge energy of each secondary battery pack 30, the heat dissipation element 42 is accommodated in the heat dissipation chamber 11 to generate a higher operating temperature than the secondary battery pack 30, but the heat isolation between the heat dissipation chamber 11 and the accommodating chamber 12 is used to reliably avoid the mutual influence of the operating temperatures; the number of the battery state detecting unit 41 and the heat consuming element 42 may be changed according to the capacity of the secondary battery and the load thereof.
At least one connector set 50, the connector set 50 having a first connector 51 and a second connector 52 respectively, the first connector 51 being electrically connected to the corresponding battery status detecting unit 41, the second connector 52 being electrically connected to the corresponding heat dissipation element 42, the first connector 51 being detachably combined with the second connector 52.
Thereby, the battery state detecting unit 41 independently detects the potential of the corresponding secondary battery pack 30, and controls the corresponding secondary battery pack 30 to release electric energy to the electrically connected heat consuming element 42.
Before setting forth a detailed description of a second embodiment of the present invention, it is noted that in the following description, like elements are referred to by like reference numerals and are shown in fig. 5, including:
the box 10 has a concave space with an opening form formed therein, and a partition plate 10A is disposed along the opening to the bottom of the internal space of the box 10 to divide the internal space of the box 10 into two heat dissipation chambers 11 and the accommodating chamber 12 which are isolated from each other and are independent from each other and each of which has a concave space form.
The heat dissipation plate 20 is fixedly disposed in the heat dissipation chamber 11, and the heat dissipation plate 20 is made of a metal material.
At least one secondary battery pack 30 is disposed in the accommodating chamber 12.
A charge balance system 60, the charge balance system 60 having at least one battery state detection unit 61 and at least one heat dissipation element 62, the battery state detection unit 61 being installed in the accommodation chamber 12, the battery state detection unit 61 being electrically connected to the corresponding secondary battery pack 30 in a module form, the battery state detection unit 61 detecting the state of the corresponding secondary battery pack 30 in the same module to facilitate the reliable detection of the integrity of the secondary battery pack 30 for quick maintenance or replacement, and the battery state detection unit 61 including a detection unit 611, a comparison unit 612 and a control unit 613 which are electrically connected, the detection unit 611 being used to detect the potential of each secondary battery pack 30, the comparison unit 612 having a predetermined range value therein, the control unit 613 is provided for controlling the discharge of each secondary battery pack 30; the heat consumption element 62 is fixedly disposed in the heat consumption chamber 11, the battery state detection unit 61 is electrically connected to the heat consumption element 62, and the heat consumption element 62 is used for consuming the overcharge energy of the connected secondary battery pack 30.
The connector set 50 has the first connector 51 and the second connector 52, the first connector 51 is electrically connected to the corresponding battery status detecting unit 61, the second connector 52 is electrically connected to the heat dissipation element 62, and the first connector 51 is detachably combined with the second connector 52.
Accordingly, the detecting unit 611 detects the corresponding voltage level of the secondary battery pack 30, the comparing unit 612 compares the detected voltage level with a predetermined range, and the control unit 613 controls the secondary battery pack 30 to release the electric energy to the heat dissipation element 62 when the voltage level of the secondary battery pack 30 exceeds the predetermined range.
In a first preferred embodiment of the second embodiment, as shown in fig. 6 and 7, each secondary battery pack 30 is connected to a main control unit 70, and further has a temperature switch 80, the temperature switch 80 is attached to the heat dissipation plate 20, a threshold value is preset in the temperature switch 80, the temperature switch 80 is in control connection with the main control unit 70, the temperature switch 80 is used for detecting temperature, and when the temperature exceeds the threshold value, the temperature switch 80 controls the main control unit 70 to be turned off.
In a second preferred embodiment of the second embodiment, as shown in fig. 8, the battery state detecting units 61 further include a protection switch 614, the comparing unit 612 has a predetermined extreme value therein, and when the potential of the secondary battery pack 30 reaches the predetermined extreme value, the protection switch 614 controls the corresponding secondary battery pack 30 to open.
In both of the above embodiments, the heat dissipation chamber 11 and the accommodation chamber 12 of the case 10 are used to isolate the components with different working temperatures, i.e. the heat dissipation component 62 with relatively high working temperature is isolated from the battery state detection unit 61 and the secondary battery pack 30 which must be kept with relatively low working temperature, so as to ensure that the battery state detection unit 61 and the secondary battery pack 30 can operate in the accommodation chamber 12 at normal working temperature without being affected by the relatively high temperature of the heat dissipation chamber 11, and the secondary battery packs 30 and the battery state detection unit 61 can be maintained and replaced by modules, so as to improve the efficiency and safety of the maintenance of the secondary battery packs.
Claims (8)
1. A secondary battery pack for spatially isolating operational temperature differences, comprising:
a box, at least one secondary battery set and a charge balance system arranged in the box, wherein the charge balance system is respectively provided with at least one battery state detection unit and at least one heat consumption element which are electrically connected, and the heat consumption element is used for consuming the corresponding overcharge energy of the secondary battery set, and the charge balance system is characterized in that:
the box body is provided with a heat consumption chamber and an accommodating chamber which are separated into two independent space forms by a partition board, the heat consumption element is fixedly arranged in the heat consumption chamber, the secondary battery pack and the battery state detection unit are arranged in the accommodating chamber, the battery state detection unit is electrically connected with the secondary battery pack, the battery state detection unit and the corresponding secondary battery pack are electrically connected into a module form, and the battery state detection unit detects the state of the corresponding secondary battery pack in the same module and controls the charging and discharging of the secondary battery pack;
therefore, the heat dissipation chamber and the accommodating chamber of the box body can reliably isolate the heat dissipation element with relatively high working temperature from the battery state detection unit and the secondary battery pack which need to keep relatively low working temperature, and the battery state detection units respectively and independently detect the electric potential of the corresponding secondary battery pack and can control the corresponding secondary battery pack to release electric energy to the heat dissipation element.
2. The secondary battery pack for spatially isolating operational temperature differentials of claim 1, wherein: the battery state detection device further comprises at least one joint set, wherein the joint set is provided with a first joint and a second joint, the first joint is electrically connected with each battery state detection unit, the second joint is electrically connected with the corresponding heat dissipation element, and the first joint can be detachably combined with the second joint.
3. The secondary battery pack for spatially isolating operational temperature differentials of claim 1, wherein: the box body is internally provided with a heat dissipation plate which is made of metal materials and is combined with the heat dissipation element to be contained in the heat dissipation cavity of the box body.
4. A secondary battery pack for spatially isolating operating temperature differentials, comprising: the method comprises the following steps:
a box, at least one secondary battery set and a charge balance system arranged in the box, wherein the charge balance system is respectively provided with at least one battery state detection unit and at least one heat consumption element which are electrically connected, and the heat consumption elements are used for consuming the overcharge energy of each secondary battery set, and the charge balance system is characterized in that:
the box body is provided with a heat consumption chamber and a containing chamber which are divided into two independent space forms by a partition board, the heat dissipation plate and the heat dissipation element are fixedly arranged in the heat dissipation chamber, the secondary battery pack and each battery state detection unit are arranged in the accommodating chamber, the battery state detection unit is electrically connected with the corresponding secondary battery pack, the battery state detection unit is electrically connected with the corresponding secondary battery pack to form a module shape, the battery state detection unit detects the state of the corresponding secondary battery pack in the same module and controls the charging and discharging of the corresponding secondary battery pack, the battery state detection unit comprises a detection unit, a comparison unit and a control unit which are in telecommunication connection, the detection unit is used for detecting the potential of the secondary battery pack, the comparison unit has a preset range value, and the control unit is used for controlling the discharge of the electrically connected secondary battery pack;
therefore, the heat consumption chamber and the accommodating chamber of the box body can isolate the heat consumption element with relatively high working temperature from the battery state detection unit and the secondary battery pack which need to keep relatively low working temperature, the detection units respectively and independently detect the potential of the secondary battery pack, the comparison unit compares the detected potential with the preset range value, and when the potential of the secondary battery pack exceeds the preset range value, the control unit controls the secondary battery pack to release electric energy to the heat consumption element.
5. The secondary battery pack for spatially isolating operational temperature differentials of claim 4, wherein: the battery state detection device further comprises at least one joint set, wherein the joint set is provided with a first joint and a second joint, the first joint is electrically connected with the corresponding battery state detection unit, the second joint is electrically connected with the corresponding heat consumption element, and the first joint can be detachably combined with the second joint.
6. The secondary battery pack for spatially isolating operational temperature differentials of claim 4, wherein: the secondary battery pack is connected to a main control unit and is also provided with a temperature switch, the temperature switch is attached to the heat dissipation plate, a threshold value is preset in the temperature switch, the temperature switch is in control connection with the main control unit and is used for detecting temperature, and when the temperature exceeds the threshold value, the temperature switch controls the main control unit to be closed.
7. The secondary battery pack for spatially isolating operational temperature differentials of claim 4, wherein: the battery state detection unit further comprises a protection switch, the comparison unit is internally provided with a preset extreme value, and when the potential of the secondary battery pack reaches the preset extreme value, the protection switch controls the corresponding secondary battery pack to be opened.
8. The secondary battery pack for spatially isolating operational temperature differentials of claim 4, wherein: the box body is internally provided with a heat dissipation plate which is made of metal materials and is combined with the heat dissipation element to be contained in the heat dissipation cavity of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172344.5A CN111030199A (en) | 2018-10-09 | 2018-10-09 | Secondary assembled battery with space isolation working temperature difference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172344.5A CN111030199A (en) | 2018-10-09 | 2018-10-09 | Secondary assembled battery with space isolation working temperature difference |
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| CN111030199A true CN111030199A (en) | 2020-04-17 |
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| CN201811172344.5A Pending CN111030199A (en) | 2018-10-09 | 2018-10-09 | Secondary assembled battery with space isolation working temperature difference |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202373673U (en) * | 2011-12-02 | 2012-08-08 | 苏州冠硕新能源有限公司 | Battery system |
| CN105006603A (en) * | 2014-04-25 | 2015-10-28 | 电能有限公司 | Secondary assembled battery with overcharge and overdischarge device |
| DE102015202602A1 (en) * | 2015-02-12 | 2016-08-18 | Heliocentris Industry GmbH | Battery cabinet with baffle arrangement, baffle arrangement for a battery cabinet and method for operating a battery cabinet |
| CN105977571A (en) * | 2016-05-20 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN106299178A (en) * | 2015-06-25 | 2017-01-04 | 电能有限公司 | The chargeable Assembled battery of tool overcharge electric discharge device |
| TW201729457A (en) * | 2016-01-12 | 2017-08-16 | 先端聯合股份有限公司 | Temperature-controlling/power-supplying system of battery pack |
| CN207587927U (en) * | 2017-11-28 | 2018-07-06 | 福建荣华科技有限公司 | A kind of constant temperature power battery module and electric vehicle |
-
2018
- 2018-10-09 CN CN201811172344.5A patent/CN111030199A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373673U (en) * | 2011-12-02 | 2012-08-08 | 苏州冠硕新能源有限公司 | Battery system |
| CN105006603A (en) * | 2014-04-25 | 2015-10-28 | 电能有限公司 | Secondary assembled battery with overcharge and overdischarge device |
| DE102015202602A1 (en) * | 2015-02-12 | 2016-08-18 | Heliocentris Industry GmbH | Battery cabinet with baffle arrangement, baffle arrangement for a battery cabinet and method for operating a battery cabinet |
| CN106299178A (en) * | 2015-06-25 | 2017-01-04 | 电能有限公司 | The chargeable Assembled battery of tool overcharge electric discharge device |
| TW201729457A (en) * | 2016-01-12 | 2017-08-16 | 先端聯合股份有限公司 | Temperature-controlling/power-supplying system of battery pack |
| CN105977571A (en) * | 2016-05-20 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN207587927U (en) * | 2017-11-28 | 2018-07-06 | 福建荣华科技有限公司 | A kind of constant temperature power battery module and electric vehicle |
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