CN212934772U

CN212934772U - Lithium ion battery with equalizing charge protection mechanism

Info

Publication number: CN212934772U
Application number: CN202021853154.2U
Authority: CN
Inventors: 谢辉; 谢俊
Original assignee: Dongguan Bochuang Energy Co ltd
Current assignee: Dongguan Bochuang Energy Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-09
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a lithium ion battery with equalizing charge protection mechanism, which comprises a shell and a battery structure, wherein the battery structure is arranged inside the shell, the shell is arranged outside the battery structure, the battery structure can be placed inside the shell, a fixed cross rod is arranged at the upper end of the shell, a gap plate can be placed at the gap between the shell and the battery structure to prevent the battery structure from shaking, the battery structure can be fixedly arranged inside the shell by using a fixing bolt and a mounting hole to avoid the collision between the external structure and the battery structure, the protection effect is good, a control circuit module is arranged inside the battery structure, the internal circuit voltage is monitored by using a voltage monitoring module, and when the voltage exceeds a preset value, the circuit voltage is equalized by using an active equalizing circuit module, the battery structure is conveniently charged, and the normal use of the battery structure is guaranteed.

Description

Lithium ion battery with equalizing charge protection mechanism

Technical Field

The utility model relates to the technical field of batteries, specifically be a lithium ion battery with equalizing charge protection mechanism.

Background

A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode; in the charging and discharging process, the lithium ion is inserted and extracted between the two electrodes in a reciprocating way: during charging, lithium electrons are extracted from the positive electrode and are inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

When using, the existing battery structure generally has no protection structure, so that the battery structure is easy to collide with the outside, and the battery can not be normally charged due to unstable internal voltage, and the using effect is not good.

To the above problem, the utility model provides a lithium ion battery with equalizing charge protection mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ion battery with equalizing charge protection mechanism possesses that the protecting effect is good, and can fix the battery structure, can equalizer circuit, the advantage that facilitates the use to the problem in the background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a lithium ion battery with an equalizing charge protection mechanism comprises a shell and a battery structure, wherein the battery structure is arranged inside the shell, the shell comprises a radiating groove, a fixing part, a dust cover, a mounting hole, a radiating fan and a mounting groove, the radiating groove is formed in the outer surface of the shell, the fixing part is arranged at the upper end of the shell, the dust cover is arranged at the bottom end of the shell, the mounting hole is machined in the upper surface of the shell, the radiating fan is arranged at the bottom end of the shell and is arranged on the inner side of the dust cover, and the mounting groove is formed in the lower surface of the shell;

the battery structure includes anodal ear, negative pole ear, control circuit module, voltage monitoring module, initiative equalizer circuit module, temperature-sensing ware and charging circuit module, anodal ear and negative pole ear all set up in the upper end of battery structure, control circuit module sets up the inside at the battery structure, and control circuit module respectively with voltage monitoring module, the one end electricity of initiative equalizer circuit module and temperature-sensing ware is connected, and voltage monitoring module, the other end and the charging circuit module electricity of initiative equalizer circuit module and temperature-sensing ware are connected.

Preferably, the fixing part comprises a fixed cross rod, a gap plate, an elastic pad and a fixing bolt, the fixed cross rod is arranged at the upper end of the shell, the gap plate is arranged at the lower end of the fixed cross rod, the elastic pad is arranged on the inner side of the gap plate, and the fixing bolt penetrates through the fixed cross rod and is in threaded connection with the mounting hole.

Preferably, the dust cover comprises a dust screen, a mounting plate and a bump, the dust screen is arranged on the surface of the dust cover, the mounting plate is arranged at the lower end of the dust cover, and the bump is arranged on one side of the mounting plate.

Preferably, the inner wall end of the mounting groove is provided with a groove, and the groove is matched with the bump.

Preferably, one end of the temperature sensor is electrically connected with the temperature sensor switch, and the temperature sensor is a sk-192 temperature sensor.

Preferably, one end of the control circuit module is electrically connected with the temperature sensor switch and the cooling fan respectively.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a lithium ion battery with equalizing charge protection mechanism is provided with the shell in the outside of battery structure, can place the battery structure in the inside of shell, and be provided with fixed horizontal pole in the upper end of shell, and the clearance department at shell and battery structure can be placed to the clearance board simultaneously, prevents that the battery structure from producing and rocking, utilizes the cooperation of fixing bolt and mounting hole to use, can be with battery structure fixed mounting in the inside of shell, avoids outer structure and battery structure to produce the striking, and the protecting effect is good.

2. The utility model provides a lithium ion battery with equalizing charge protection mechanism is provided with the control circuit module in the inside of battery structure, monitors internal circuit voltage through utilizing voltage monitoring module, when voltage surpassed preset value, utilizes initiative equalizing circuit module to carry out the equalizing action to circuit voltage, conveniently charges to battery structure, guarantees the normal use of battery structure.

3. The utility model provides a lithium ion battery with equalizing charge protection mechanism, the one end and the temperature-sensing ware switch electricity of temperature-sensing ware are connected, the one end of control circuit module is connected with temperature-sensing ware switch and radiator fan electricity respectively, can experience the temperature of battery structure through the temperature-sensing ware, and give control circuit module with the signal transmission, when the temperature surpassed preset value, utilize radiator fan to dispel the heat, the dust cover sets up the outside at radiator fan, use through the cooperation of lug with the recess, can be with mounting panel fixed mounting in the mounting groove, utilize the dust screen can carry out dustproof effect to radiator fan, be provided with the radiating groove on the surface of shell simultaneously, the radiating effect is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the fixing member of the present invention;

FIG. 3 is a schematic view of the dust cover of the present invention;

fig. 4 is an enlarged view of a point a in fig. 3 according to the present invention;

fig. 5 is a block diagram of a battery structure system according to the present invention.

In the figure: 1. a housing; 11. a heat sink; 12. a fixing member; 121. fixing the cross bar; 122. a gap plate; 123. an elastic pad; 124. fixing the bolt; 13. a dust cover; 131. a dust screen; 132. mounting a plate; 133. a bump; 14. mounting holes; 15. a heat radiation fan; 16. mounting grooves; 161. a groove; 2. a battery structure; 21. a positive tab; 22. a negative tab; 23. a control circuit module; 24. a voltage monitoring module; 25. an active equalization circuit module; 26. a temperature sensor; 261. a temperature sensor switch; 27. and a charging circuit module.

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.

Referring to fig. 1 and 5, a lithium ion battery with an equalizing charge protection mechanism includes a housing 1 and a battery structure 2, the battery structure 2 is disposed inside the housing 1, the housing 1 includes a heat sink 11, a fixing member 12, a dust cover 13, a mounting hole 14, a heat sink fan 15 and a mounting groove 16, the heat sink 11 is disposed on an outer surface of the housing 1, the fixing member 12 is disposed on an upper end of the housing 1, the dust cover 13 is disposed at a bottom end of the housing 1, the mounting hole 14 is processed on an upper surface of the housing 1, the heat sink fan 15 is disposed at a bottom end of the housing 1 and is disposed inside the dust cover 13, and the mounting groove 16 is disposed on a lower surface of the housing 1; the battery structure 2 comprises a positive tab 21, a negative tab 22, a control circuit module 23, a voltage monitoring module 24, an active equalization circuit module 25, a temperature sensor 26 and a charging circuit module 27, wherein the positive tab 21 and the negative tab 22 are both arranged at the upper end of the battery structure 2, the control circuit module 23 is arranged inside the battery structure 2, the control circuit module 23 is respectively and electrically connected with one ends of the voltage monitoring module 24, the active equalization circuit module 25 and the temperature sensor 26, and the other ends of the voltage monitoring module 24, the active equalization circuit module 25 and the temperature sensor 26 are electrically connected with the charging circuit module 27; the voltage monitoring module 24 is used for monitoring the voltage of the internal circuit, and when the voltage exceeds a preset value, the active equalization circuit module 25 is used for equalizing the voltage of the circuit, so that the battery structure 2 is conveniently charged, and the normal use of the battery structure 2 is ensured; one end of the temperature sensor 26 is electrically connected to the temperature sensor switch 261, and the temperature sensor 26 is a sk-192 temperature sensor; one end of the control circuit module 23 is electrically connected to the temperature sensor switch 261 and the cooling fan 15; one end of the control circuit module 23 is electrically connected to the temperature sensor switch 261 and the heat dissipation fan 15, and the temperature sensor 26 can sense the temperature of the battery structure 2 and transmit a signal to the control circuit module 23, and when the temperature exceeds a predetermined value, the heat dissipation fan 15 is used to dissipate the heat.

Referring to fig. 2, the fixing member 12 includes a fixing cross bar 121, a gap plate 122, an elastic pad 123 and a fixing bolt 124, the fixing cross bar 121 is disposed at the upper end of the housing 1, the gap plate 122 is disposed at the lower end of the fixing cross bar 121, the elastic pad 123 is disposed at the inner side of the gap plate 122, and the fixing bolt 124 penetrates through the fixing cross bar 121 and is in threaded connection with the mounting hole 14; can place battery structure 2 in the inside of shell 1, and be provided with fixed horizontal pole 121 in the upper end of shell 1, clearance board 122 can be placed in the clearance department of shell 1 with battery structure 2 simultaneously, prevents that battery structure 2 from producing and rocking, utilizes the cooperation of fixing bolt 124 and mounting hole 14 to use, can be with battery structure 2 fixed mounting in the inside of shell 1, avoids outer structure and battery structure 2 to produce the striking, and the protecting effect is good.

Referring to fig. 3 and 4, the dust cover 13 includes a dust screen 131, a mounting plate 132 and a protrusion 133, the dust screen 131 is disposed on the surface of the dust cover 13, the mounting plate 132 is disposed at the lower end of the dust cover 13, and the protrusion 133 is disposed at one side of the mounting plate 132; the inner wall end of the mounting groove 16 is provided with a groove 161, and the groove 161 is matched with the projection 133; through the cooperation of lug 133 and recess 161, can be with mounting panel 132 fixed mounting in mounting groove 16, utilize dust screen 131 to carry out dustproof effect to radiator fan 15, be provided with radiating groove 11 on the surface of shell 1 simultaneously, improved the radiating effect.

In summary, the following steps: the utility model provides a lithium ion battery with equalizing charge protection mechanism, including shell 1 and battery structure 2, battery structure 2 sets up in the inside of shell 1, be provided with shell 1 in the outside of battery structure 2, can place battery structure 2 in the inside of shell 1, and be provided with fixed horizontal pole 121 in the upper end of shell 1, clearance plate 122 can be placed in the clearance department of shell 1 and battery structure 2 simultaneously, prevent that battery structure 2 from producing and rocking, utilize the cooperation of fixing bolt 124 and mounting hole 14 to use, can install battery structure 2 fixed mounting in the inside of shell 1, avoid external structure and battery structure 2 to produce the striking, the protective effect is good, be provided with control circuit module 23 in the inside of battery structure 2, monitor internal circuit voltage through utilizing voltage monitoring module 24, when voltage surpasss the preset value, the active equalization circuit module 25 is utilized to equalize the circuit voltage, so as to conveniently charge the battery structure 2 and ensure the normal use of the battery structure 2, one end of the temperature sensor 26 is electrically connected with the temperature sensor switch 261, one end of the control circuit module 23 is respectively electrically connected with the temperature sensor switch 261 and the cooling fan 15, the temperature of the battery structure 2 can be sensed by the temperature sensor 26, and a signal is transmitted to the control circuit module 23, when the temperature exceeds the preset value, the heat is dissipated by the heat dissipating fan 15, the dust cover 13 is disposed outside the heat dissipating fan 15, and by using the protrusion 133 and the groove 161 together, the mounting plate 132 can be fixedly mounted in the mounting groove 16, the dustproof effect can be achieved on the heat dissipation fan 15 by using the dustproof net 131, and the heat dissipation grooves 11 are formed in the surface of the housing 1, so that the heat dissipation effect is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium ion battery with equalizing charge protection mechanism, includes shell (1) and battery structure (2), and battery structure (2) set up the inside at shell (1), its characterized in that: the heat dissipation device is characterized in that the shell (1) comprises a heat dissipation groove (11), a fixing piece (12), a dust cover (13), a mounting hole (14), a heat dissipation fan (15) and a mounting groove (16), the heat dissipation groove (11) is formed in the outer surface of the shell (1), the fixing piece (12) is arranged at the upper end of the shell (1), the dust cover (13) is arranged at the bottom end of the shell (1), the mounting hole (14) is machined in the upper surface of the shell (1), the heat dissipation fan (15) is arranged at the bottom end of the shell (1) and is arranged on the inner side of the dust cover (13), and the mounting groove (16) is formed in the lower surface of the shell (1;

the battery structure (2) comprises a positive electrode lug (21), a negative electrode lug (22), a control circuit module (23), a voltage monitoring module (24), an active equalization circuit module (25), a temperature sensor (26) and a charging circuit module (27), the positive electrode lug (21) and the negative electrode lug (22) are arranged at the upper end of the battery structure (2), the control circuit module (23) is arranged inside the battery structure (2), the control circuit module (23) is respectively connected with the voltage monitoring module (24), the active equalization circuit module (25) is electrically connected with one end of the temperature sensor (26), and the voltage monitoring module (24), the other ends of the active equalization circuit module (25) and the temperature sensor (26) are electrically connected with the charging circuit module (27).

2. The lithium ion battery with an equalizing charge protection mechanism as claimed in claim 1, wherein: the fixing piece (12) comprises a fixing cross rod (121), a gap plate (122), an elastic pad (123) and a fixing bolt (124), the fixing cross rod (121) is arranged at the upper end of the shell (1), the gap plate (122) is arranged at the lower end of the fixing cross rod (121), the elastic pad (123) is arranged on the inner side of the gap plate (122), and the fixing bolt (124) penetrates through the fixing cross rod (121) and is in threaded connection with the mounting hole (14).

3. The lithium ion battery with an equalizing charge protection mechanism as claimed in claim 1, wherein: the dustproof cover (13) comprises a dustproof net (131), an installation plate (132) and a convex block (133), the dustproof net (131) is arranged on the surface of the dustproof cover (13), the installation plate (132) is arranged at the lower end of the dustproof cover (13), and the convex block (133) is arranged on one side of the installation plate (132).

4. The lithium ion battery with an equalizing charge protection mechanism as claimed in claim 1, wherein: the inner wall end of the mounting groove (16) is provided with a groove (161), and the groove (161) is matched with the bump (133).

5. The lithium ion battery with an equalizing charge protection mechanism as claimed in claim 1, wherein: one end of the temperature sensor (26) is electrically connected with the temperature sensor switch (261), and the temperature sensor (26) is a sk-192 temperature sensor.

6. The lithium ion battery with an equalizing charge protection mechanism as claimed in claim 1, wherein: one end of the control circuit module (23) is electrically connected with the temperature sensor switch (261) and the cooling fan (15) respectively.