CN218887320U

CN218887320U - Lithium battery protection board heat abstractor

Info

Publication number: CN218887320U
Application number: CN202223486201.6U
Authority: CN
Inventors: 彭静浪
Original assignee: Shenzhen Gtb Technology Co ltd
Current assignee: Shenzhen Gtb Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-04-18
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to a heat abstractor technical field specifically is a lithium battery protection board heat abstractor. The protection shield radiating component comprises a protection shield shell, a hollow frame, an inner filter screen, an expansion side plate, a rotating rod and a push rod, wherein the hollow frame is uniformly fixed in the protection shield shell, the inner filter screen is symmetrically installed on the protection shield shell, the expansion side plate is uniformly arranged on the protection shield shell, under the action of the hollow frame, the contact area between the protection shield shell and a lithium battery can be reduced, so that the heat dissipation of the lithium battery is more facilitated, the expansion side plate can be expanded, the protection shield shell is communicated with the outside, namely, the protection shield shell is circulated with the outside air, the purpose of radiating the lithium battery in the protection shield shell is realized, the heat is effectively prevented from being gathered in the protection shield shell, and the lithium battery is prevented from being at a high temperature for a long time.

Description

Lithium battery protection board heat abstractor

Technical Field

The utility model relates to a heat abstractor technical field specifically is a lithium battery protection board heat abstractor.

Background

The lithium battery protection board is used for charging and discharging protection of the series lithium battery pack, the voltage difference between the single batteries can be guaranteed to be smaller than a set value when the battery pack is fully charged, the single batteries of the battery pack are uniformly charged, the charging effect under the series charging mode is effectively improved, the overvoltage, undervoltage, overcurrent, short circuit and overtemperature states of the single batteries in the battery pack are detected, the service life of the battery is protected and prolonged, and the undervoltage protection enables each single battery to avoid damage of the battery due to overdischarge when the battery pack is used for discharging.

For example, publication (bulletin) numbers are: the lithium battery protection plate of CN215184188U is connected with a lithium battery pack through a buffer strip at the bottom of the lithium battery protection plate, and damping assemblies matched with a battery case are arranged at two ends of a protection plate body, so that a good damping and buffering effect can be formed on the protection plate body; the protective plate body is limited in the battery case by utilizing the limiting action of the sealing pressing block and the pressing plate, and forms a stable joint state with the lithium battery pack, so that the protective plate is not easily damaged due to vibration while being stably installed; simultaneously under the interval effect of buffering strip, form heat dissipation space between protection shield body and the lithium cell group, the fin of cooperation buffering strip bottom surface assists the radiating efficiency of reinforcing lithium cell group.

The protection shield and the lithium cell of above-mentioned device can carry out diversified laminating to above-mentioned device only sets up a heating panel in the bottom, realizes radiating purpose, only utilizes a heating panel to dispel the heat however, leads to the inside heat of protection shield and can not discharge, and the heat can gather in the protection shield, leads to the lithium cell to be in work in the high temperature state for a long time, greatly reduced lithium cell's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium battery protection shield heat abstractor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery protection shield heat abstractor, protection shield radiating component is including protection shield casing, fretwork frame, interior filter screen, expansion curb plate, dwang and by the push rod, wherein the inside at protection shield casing is evenly fixed to the fretwork frame, interior filter screen symmetry is installed on protection shield casing, wherein expandes the even setting of curb plate on protection shield casing, the dwang runs through the setting of expansion curb plate, wherein is fixed on the dwang by the push rod.

Preferably, the protection shield shell is internally and symmetrically provided with prying rods which are movably connected, wherein one side of each prying rod is provided with a protruding block which is fixedly connected.

Preferably, an extension rod is placed on one side, away from the protruding block, of the prying rod, and the extension rod is L-shaped.

Preferably, the extension rod upside sets up fixed connection's total pole, and wherein the total pole sets up fixed connection's increase apart from branch towards the one side of expanding the curb plate.

Preferably, the guide rods are symmetrically inserted into the upper side of the master rod, wherein the guide rods are fixed on the protection plate shell, and the guide rods are sleeved with downward pressing springs.

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

under the effect of fretwork frame, area of contact between reducible protection shield casing and the lithium cell more does benefit to the heat dissipation of lithium cell like this, and in the utility model, the expansion curb plate can expand to realize protection shield casing and external intercommunication, protect shield casing to circulate with the outside air promptly, thereby realize the radiating purpose of the inside lithium cell of protection shield casing, effectively avoid the heat to assemble in the inside of protection shield casing, thereby avoid the lithium cell to be in under the condition of high temperature for a long time.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a schematic view of the front view of the protection plate casing in half section.

Fig. 3 is an enlarged schematic view of a point a in fig. 2 according to the present invention.

In the figure: 1. a protective plate housing; 101. prying a rod; 102. a protruding block; 103. an extension rod; 104. a master lever; 105. a distance-increasing support rod; 106. a guide bar; 107. pressing down the spring; 11. hollowing out the frame; 12. an inner filter screen; 13. unfolding the side plates; 14. rotating the rod; 15. is pushed out of the rod.

Detailed Description

To make the purpose, technical solutions and advantages of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: including protection shield heat dissipation assembly, protection shield heat dissipation assembly is including protection shield casing 1, fretwork frame 11, interior filter screen 12, expand curb plate 13, dwang 14 and by push rod 15, wherein fretwork frame 11 evenly fixes in the inside of protection shield casing 1, interior filter screen 12 symmetry is installed on protection shield casing 1, wherein expand curb plate 13 and evenly set up on protection shield casing 1, dwang 14 runs through and expands curb plate 13 and set up, wherein is fixed on dwang 14 by push rod 15. Dwang 14 runs through the setting on protection shield casing 1, and dwang 14 is connected with protection shield casing 1 through the hotbed chives simultaneously, expandes the outside that curb plate 13 is in interior filter screen 12, and a plurality ofly expandes and splice each other between the curb plate 13, including filter screen 12 forms a barrier, when the lithium cell is not installed inside protection shield casing 1, interior filter screen 12 just can not work, offers the logical groove of filter screen 12 in the installation on protection shield casing 1.

Movably connected prying rods 101 are symmetrically arranged inside the protection board shell 1, wherein one side of each prying rod 101 is provided with a fixedly connected protruding block 102. The pry bar 101 is connected to the protection shield case 1 by a torsion spring.

An extension rod 103 is placed on the side of the pry rod 101 away from the protruding block 102, wherein the extension rod 103 is L-shaped.

The upper side of the extending rod 103 is provided with a fixedly connected total moving rod 104, wherein one side of the total moving rod 104 facing the unfolding side plate 13 is provided with a fixedly connected distance-increasing supporting rod 105. The distance-increasing struts 105 are located on the underside of the driven rods 15, and the number of driven rods 15 is the same as the number of distance-increasing struts 105 on the same side of the protective plate housing 1.

The upper side of the total moving rod 104 is symmetrically inserted into a guide rod 106, wherein the guide rod 106 is fixed on the protection board housing 1, and a downward pressing spring 107 is sleeved on the guide rod 106. The master lever 104 is formed with a groove having a depth equal to the height of the guide lever 106, and the guide lever 106 is inserted into the groove, so that the master lever 104 can move up and down along the guide lever 106.

Under the effect of fretwork frame 11, area of contact between reducible protection shield casing 1 and the lithium cell, more do benefit to the heat dissipation of lithium cell like this, and when the inside of protection shield casing 1 was installed to the lithium cell, the lithium cell can push down outstanding piece 102, make one side perk that outstanding piece 102 was kept away from to pry pole 101, pry pole 101 can carry out the top to extension rod 103 afterwards, total pole 104 moves upwards afterwards, increase apart from branch 105 can promote by push rod 15, dwang 14 takes place to rotate not immediately, it can launch to launch curb plate 13, thereby realize protection shield casing 1 and external intercommunication, protection shield casing 1 circulates with outside air promptly, thereby realize the radiating purpose of the inside lithium cell of protection shield casing 1, effectively avoid the heat to assemble in protection shield casing 1's inside, thereby avoid the lithium cell to be in under the condition of high temperature for a long time.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a lithium cell protection shield heat abstractor, includes protection shield radiator unit, its characterized in that: protection shield radiator unit is including protection shield casing (1), fretwork frame (11), interior filter screen (12), expansion curb plate (13), dwang (14) and by push rod (15), wherein fretwork frame (11) are evenly fixed in the inside of protection shield casing (1), interior filter screen (12) symmetry is installed on protection shield casing (1), wherein expand curb plate (13) and evenly set up on protection shield casing (1), dwang (14) run through expansion curb plate (13) and set up, wherein are fixed on dwang (14) by push rod (15).

2. The heat dissipating device for a lithium battery protection plate as claimed in claim 1, wherein: the protection shield shell (1) is internally and symmetrically provided with prying rods (101) which are movably connected, wherein one sides of the prying rods (101) are provided with protruding blocks (102) which are fixedly connected.

3. The lithium battery protection board heat sink as claimed in claim 2, wherein: an extension rod (103) is placed on one side, away from the protruding block (102), of the prying rod (101), wherein the extension rod (103) is L-shaped.

4. The heat sink for a lithium battery protection board as claimed in claim 3, wherein: extension rod (103) upside sets up fixed connection's total pole (104), and wherein total pole (104) set up fixed connection's increase apart from branch (105) towards the one side of expanding curb plate (13).

5. The heat sink for protection plates of lithium batteries according to claim 4, wherein: the upper side of the total moving rod (104) is symmetrically inserted into a guide rod (106), wherein the guide rod (106) is fixed on the protection plate shell (1), and a downward pressing spring (107) is sleeved on the guide rod (106).