CN211508654U - Non-heat loss quick-charging battery pack - Google Patents
Non-heat loss quick-charging battery pack Download PDFInfo
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- CN211508654U CN211508654U CN201922401802.4U CN201922401802U CN211508654U CN 211508654 U CN211508654 U CN 211508654U CN 201922401802 U CN201922401802 U CN 201922401802U CN 211508654 U CN211508654 U CN 211508654U
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Abstract
The utility model discloses a no heat loss fast rechargeable battery group. The battery pack comprises a battery pack and a single battery, wherein the cathode of a battery m is connected with the anode end of a charging diode m-1 and the cathode end of a downlink diode m-1, the anode of the battery m is connected with the cathode end of an uplink diode m-1, the anode end of the uplink diode m and the cathode end of the charging diode m, the anode end of the charging diode m is connected with the cathode of a battery m +1, the cathode end of the downlink diode m and the anode end of the downlink diode m +1, the cathode of the battery 1 and the anode end of the downlink diode 1 are connected with the total cathode of the battery pack, the anode end of the charging diode n and the cathode end of the downlink diode n are connected with the anode of the single battery, and the cathode end of the uplink diode n and the anode of the single battery are connected with the total anode of the battery. The utility model provides a no heat loss fast battery charging group provides the gentle environment of filling soon, prolongs the life of battery, improves the charge efficiency of battery.
Description
Technical Field
The utility model relates to the technical field of batteries, especially, relate to a no heat loss quick charging group.
Background
In the prior art, in order to improve the charging voltage or current of the battery pack, a supporting circuit or a hardware protocol and the like are required, namely, the requirements on a charger and hardware equipment are higher, the electrolyte is decomposed due to long-term quick charging, deposits are generated, the high temperature is generated by quick charging, the electric core is damaged, the running efficiency of high-precision equipment such as a mobile phone and the like is reduced, the quick charging power is limited by the state of the battery, environmental factors and safety factors, the service life of the quick charging battery pack can be shortened, meanwhile, the heat loss of the battery pack during charging can be greatly reduced, and the charging efficiency is reduced.
Disclosure of Invention
The utility model provides a quick-charging battery pack without heat loss, which can not only realize the simultaneous improvement of the charging voltage and current of each battery, but also greatly reduce the heat loss; and each battery can be independently discharged without mutual interference, so that simultaneous discharge is realized during discharge, the over-discharge problem is avoided, a mild and fast charging environment is provided, the service life of the battery is prolonged, and the charging efficiency of the battery is improved.
In order to achieve the above object, the utility model provides a following scheme:
a non-heat-loss fast-charging battery pack comprises a battery pack and single batteries, wherein the battery pack comprises n battery components 1, 2, m-1, m +1 and n which are sequentially connected in series, wherein m is more than 1 and less than n, each battery component comprises a battery, an uplink diode, a charging diode and a downlink diode, the battery component m comprises a battery m, an uplink diode m, a charging diode m and a downlink diode m, the cathode of the battery m is connected with the anode end of the charging diode m-1 and the cathode end of the downlink diode m-1, the anode of the battery m is connected with the cathode end of the uplink diode m-1, the anode end of the uplink diode m and the cathode end of the charging diode m, and the anode end of the charging diode m is connected with the cathode of the battery m +1, The cathode end of the downlink diode m is connected with the anode end of the downlink diode m +1, the cathode of the battery 1 and the anode end of the downlink diode 1 are connected with the total cathode of the battery pack, the anode end of the charging diode n and the cathode end of the downlink diode n are connected with the cathode of the single battery, and the cathode end of the uplink diode n and the anode of the single battery are connected with the total anode of the battery pack.
Optionally, the battery and the single battery are rechargeable storage batteries.
Optionally, the rechargeable battery is a lithium battery.
Optionally, the value of n is 3, and the value of m is 2.
Compared with the prior art, the technology has the following beneficial effects:
the utility model provides a pair of no heat loss fast battery charging group, charging process: the serial charging ensures that the electric energy obtained by each battery is the same under the condition of equal internal resistance of the batteries, so that the batteries are fully charged at the same time during charging, and the aging phenomenon of single batteries in the battery pack does not exist; when the internal resistances of the batteries are different, the batteries with large internal resistance are divided into large voltage and equal electric energy distribution due to series voltage division, and the chain malignant reaction of bias current, single heating, thermal runaway and other heating, and thermal runaway one by one is avoided. Therefore, the method has no harsh requirements on the battery process, simultaneously avoids the problem of inconsistent aging degree of the batteries in the battery pack, avoids the problem of equalization of series charging after long-time use due to inconsistent aging, and reduces the probability of later-period faults; and (3) discharging: the parallel discharge ensures that each battery discharges independently without mutual interference, so that simultaneous discharge is realized during discharge, and the problem of overdischarge is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a non-thermal loss quick-charging battery pack according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a charging process of a non-thermal-loss fast-charging battery pack according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a discharging process of a non-thermal-loss fast-charging battery pack according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a quick-charging battery pack without heat loss, which can not only realize the simultaneous improvement of the charging voltage and current of each battery, but also greatly reduce the heat loss; and each battery can be independently discharged without mutual interference, so that simultaneous discharge is realized during discharge, the over-discharge problem is avoided, a mild and fast charging environment is provided, the service life of the battery is prolonged, and the charging efficiency of the battery is improved.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a non-thermal-loss fast-charging battery pack according to an embodiment of the present invention, as shown in fig. 1, a non-thermal-loss fast-charging battery pack includes a battery pack and a single battery 4, the battery pack includes three battery assemblies 1, 2, and 3 connected in series, the battery assembly 1 includes a battery 5, a diode D1, a diode D2, and a diode D3, the battery assembly 2 includes a battery 6, a diode D4, a diode D5, and a diode D6, the battery assembly 3 includes a battery 7, a diode D7, a diode D8, and a diode D9, a cathode of the battery 5 and an anode of the diode D3 are connected to a total cathode 8 of the battery pack, an anode of the battery 5 is connected to an anode of the diode D1 and a cathode of the diode D2, an anode of the diode D2 is connected to an anode of the battery 6, a cathode of the diode D3, and an anode of the diode D6, the positive pole of battery 6 is connected with the cathode end of diode D1, the anode end of diode D4, the cathode end of diode D5, the anode end of diode D5 is connected with the negative pole of battery 7, the cathode end of diode D6 and the anode end of diode D9, the positive pole of battery 7 is connected with the cathode end of diode D4, the anode end of diode D7 and the cathode end of diode D8, the anode end of diode D8 is connected with the cathode end of diode D9 and the negative pole of battery 4, and the positive pole of battery 4 is connected with the cathode end of diode D7 and total positive pole 9 of the battery pack. The battery 5, the battery 6, the battery 7 and the single battery 4 are all rechargeable storage batteries. The rechargeable battery is a lithium battery. The value of n is 3, and the value of m is 2.
It is worth noting that the battery assembly m in the technical scheme represents the mth battery assembly of n battery assemblies which are sequenced from 1 to n, the battery m, the uplink diode m, the charging diode m and the downlink diode m represent devices which are correspondingly arranged in the battery assembly m, and similarly, the battery assembly m +1 represents the (m + 1) th battery assembly of n battery assemblies which are sequenced from 1 to n, and simultaneously represents the battery assembly which is positioned behind the battery assembly m; the battery m +1, the uplink diode m +1, the charging diode m +1 and the downlink diode m +1 represent devices correspondingly arranged in the battery assembly m + 1; the above m and n represent only the numbered suffixes after sorting for convenience in understanding the connection relationship between the electronic devices and finding the corresponding battery pack and electronic device.
And (3) charging process:
the anodal electric current of power supply gets into from the total anodal 9 of group battery, passes through battery cell 4, diode D8, battery 7, diode D5, battery 6, diode D2, battery 5 to the total negative pole 8 of group battery and gets into power supply's negative pole in proper order to accomplish charging process, not only make when charging to realize being full of simultaneously, the charge time is short, has avoided the problem that the battery ageing degree differs in the group battery simultaneously.
And (3) discharging:
the discharging current sequentially passes through a diode D1, a diode D4, a diode D7 and a battery pack total anode 9 from the anode of the battery 5 to reach an electric appliance and then sequentially passes through a battery pack total cathode 8 to reach the cathode of the battery 5 to form a discharging loop; the discharging current reaches an electric appliance from the positive electrode of the battery 6 through the diode D4, the diode D7 and the total positive electrode 9 of the battery pack in sequence, and then reaches the negative electrode of the battery 6 through the total negative electrode 8 of the battery pack and the diode D3 in sequence to form a discharging loop; the discharging current reaches an electric appliance from the positive electrode of the battery 7 through the diode D7 and the total positive electrode 9 of the battery pack in sequence, then reaches the negative electrode of the battery 7 through the total negative electrode 8 of the battery pack, the diode D3 and the diode D6 in sequence to form a discharging loop; the discharging current reaches an electric appliance from the anode of the single battery 4 through the total anode 9 of the battery pack, then sequentially reaches the cathode of the single battery 4 through the total cathode 8 of the battery pack, the diode D3, the diode D6 and the diode D9 to form a discharging loop; at the moment, each battery discharges independently without mutual interference, so that simultaneous discharge is realized during discharge, the over-discharge problem is avoided, and the battery can be realized through simple power management.
Fig. 2 is a schematic diagram of a charging process of a non-thermal-loss fast-charging battery pack according to an embodiment of the present invention, as shown in fig. 2, two lithium batteries are connected in series under the guidance of a diode during charging (the direction indicated by the arrow is a current direction, and a power supply is not shown). If the voltage of one battery is set to U, a voltage of 2U is required for charging. The serial charging ensures that the electric energy obtained by each battery is the same under the condition of equal internal resistance of the batteries, so that the batteries are fully charged at the same time during charging; when the internal resistances of the batteries are different, the batteries with large internal resistance are divided into large voltage and equal electric energy distribution due to serial partial pressure, and the chain vicious reaction of bias current, single heat generation, thermal runaway, other heat generation and one-by-one thermal runaway is avoided. Therefore, the method has no harsh requirements on the battery process, simultaneously avoids the problem of inconsistent aging degree of the batteries in the battery pack (because of avoiding inconsistent aging, the problem of equalization of series charging after long-time use is not required to be considered), and reduces the probability of occurrence of later-period faults.
Fig. 3 is the schematic diagram of the discharge process of the non-thermal-loss fast-charging battery pack according to the embodiment of the present invention, as shown in fig. 3, under the guidance of the diode during discharge, two lithium batteries are connected in parallel, and the discharge voltage of the battery pack is U (arrow pointing to the current direction, not drawn for electrical equipment). At the moment, each battery discharges independently without mutual interference, realizes simultaneous discharge, takes care of avoiding the overdischarge problem, and can be realized through simple power management.
Different from the existing quick charging technology, the quick charging battery pack without heat loss can realize high-efficiency quick charging. A single battery depending on a series-parallel common-row scheme in the charging and discharging process is equivalent to operate in a mild environment, and the service life of the battery is not obviously influenced. Setting the capacity of one battery as E, the current of one battery for charging under the mild condition as I, and the voltage as U, then the electric quantity of n batteries is nE, t represents time, and n represents the number of batteries. Charging is realized through special circuit connection, and the following conditions exist: nE ═ nU I (t/n), charged using a charger of nU (slightly larger considering the internal resistance of the battery). Discharge with nE ═ u (nit). A large amount of potential energy is charged in a short time through high voltage and high current, and based on a scheme of series-parallel connection common operation, the heat loss is greatly reduced, and the charging efficiency is improved.
The utility model provides a pair of no heat loss fast battery charging group, charging process: the serial charging ensures that the electric energy obtained by each battery is the same under the condition of equal internal resistance of the batteries, so that the batteries are fully charged at the same time during charging, and the aging phenomenon of single batteries in the battery pack does not exist; when the internal resistances of the batteries are different, the batteries with large internal resistance are divided into large voltage and equal electric energy distribution due to series voltage division, and the chain malignant reaction of bias current, single heating, thermal runaway and other heating, and thermal runaway one by one is avoided. Therefore, the method has no harsh requirements on the battery process, simultaneously avoids the problem of inconsistent aging degree of the batteries in the battery pack, avoids the problem of equalization of series charging after long-time use due to inconsistent aging, and reduces the probability of later-period faults; and (3) discharging: parallel discharge ensures that each battery discharges independently without mutual interference, realizes simultaneous discharge and avoids the over-discharge problem. The utility model provides a quick-charging battery pack without heat loss, which can not only realize the simultaneous improvement of the charging voltage and current of each battery, but also greatly reduce the heat loss; and each battery can be independently discharged without mutual interference, so that simultaneous discharge is realized during discharge, the over-discharge problem is avoided, a mild and fast charging environment is provided, the service life of the battery is prolonged, and the charging efficiency of the battery is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. A non-heat-loss fast-charging battery pack is characterized by comprising a battery pack and single batteries, wherein the battery pack comprises n battery components 1, 2, m-1, m +1 and n, wherein m is more than 1 and less than n, each battery component comprises a battery, an uplink diode, a charging diode and a downlink diode, the battery component m comprises a battery m, an uplink diode m, a charging diode m and a downlink diode m, the cathode of the battery m is connected with the anode end of the charging diode m-1 and the cathode end of the downlink diode m-1, the anode of the battery m is connected with the cathode end of the uplink diode m-1, the anode end of the uplink diode m and the cathode end of the charging diode m, the anode end of the charging diode m is connected with the cathode of the battery m +1, the cathode end of the downlink diode m and the anode end of the downlink diode m +1, the cathode of the battery 1 and the anode end of the downlink diode 1 are connected with the total cathode of the battery pack, the anode end of the charging diode n and the cathode end of the downlink diode n are connected with the cathode of the single battery, and the cathode end of the uplink diode n and the anode of the single battery are connected with the total anode of the battery pack.
2. The non-heat-loss quick-charging battery pack according to claim 1, wherein the battery and the single battery are rechargeable storage batteries.
3. The non-thermal-loss quick-charging battery pack according to claim 2, wherein the rechargeable battery is a lithium battery.
4. The non-thermal-loss quick-charging battery pack according to claim 1, wherein n has a value of 3 and m has a value of 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922401802.4U CN211508654U (en) | 2019-12-27 | 2019-12-27 | Non-heat loss quick-charging battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922401802.4U CN211508654U (en) | 2019-12-27 | 2019-12-27 | Non-heat loss quick-charging battery pack |
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| Publication Number | Publication Date |
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| CN211508654U true CN211508654U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922401802.4U Active CN211508654U (en) | 2019-12-27 | 2019-12-27 | Non-heat loss quick-charging battery pack |
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