CN219436062U - Lithium battery pack with heat radiation structure - Google Patents

Abstract

The utility model belongs to the technical field of lithium batteries, and particularly relates to a lithium battery pack with a heat dissipation structure, which comprises an encapsulation shell and a lithium battery pack, wherein the lithium battery pack is placed in the encapsulation shell, two symmetrically distributed air passages are fixedly connected in the encapsulation shell, and a fan is arranged in one air passage. According to the utility model, the packaging shell is arranged, the lithium battery pack is arranged in the packaging shell, two air passages are arranged on the side wall of the packaging shell and are used for air intake and exhaust, dust filtering nets are arranged on the air passages, a fan is arranged in one of the air passages and used for drainage, the air flow of the fan is used for driving the impeller to rotate as a heat dissipation structure, and the impeller drives the hairbrush to rotate through the rotating shaft, so that the hairbrush rotates on the outer surface of the dust filtering net, dust blocked by the dust filtering net can be swept, the blocking of the dust filtering net is prevented, the ventilation is normal, and the heat dissipation efficiency is further guaranteed.

Description

Lithium battery pack with heat radiation structure

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery pack with a heat dissipation structure.

Background

The ternary polymer lithium battery is a lithium battery with a ternary positive electrode material of nickel cobalt lithium manganate or nickel cobalt lithium aluminate, wherein the ternary composite positive electrode material is prepared from nickel salt, cobalt salt and manganese salt, the proportion of nickel, cobalt and manganese in the ternary positive electrode material can be adjusted according to actual needs, and the battery with the ternary material as the positive electrode has high safety relative to the lithium cobaltate battery, and the lithium battery is connected through a plurality of monomer combinations to form a lithium battery pack. The lithium battery pack can generate heat when being charged and discharged, the natural cooling mode is insufficient for radiating the lithium battery pack, mechanical heat radiation is generally selected, for example, a fan is used, the utility model patent with the publication number of CN212434718U discloses a lithium battery pack with a ventilation and heat radiation structure, when the lithium battery in the inner cavity of a box shell works, the lithium battery generates heat, the heat generated by the lithium battery is guided to a second soaking plate through a first soaking plate, the side surface of the second soaking plate is provided with semiconductor refrigeration, the semiconductor refrigeration enables the second soaking plate to achieve the effect of cooling through refrigeration, and the heat generated by the semiconductor is led out through a ventilation fan, so that the lithium battery in the inner cavity of the box shell achieves the effect of heat radiation, and explosion of the lithium battery due to temperature overheat is prevented. However, the above patent suffers from the following disadvantages: the dust of Mao Xuzhuang is piled up very easily to the surface of expanding the fan housing, and untimely cleaning can cause the jam, leads to expanding the fan housing unable normal ventilation to influence radiating efficiency. Therefore, improvements are needed.

Disclosure of Invention

The utility model aims to provide a lithium battery pack with a heat radiation structure, which solves the problems that dust of Mao Xuzhuang is easily accumulated on the outer surface of a fan cover in the prior art, and the fan cover cannot normally ventilate due to the fact that the fan cover cannot be cleaned in time, so that the heat radiation efficiency is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lithium battery group with heat radiation structure, includes encapsulation shell and lithium battery group, place lithium battery group in the encapsulation shell, two symmetric distributions's air flue of fixedly connected with in the encapsulation shell, one of them be provided with the fan in the air flue, every all have the installation lid through threaded connection on the air flue, fixedly connected with dust filter net on the installation lid, be provided with anti-blocking mechanism on the dust filter net, the inboard fixedly connected with fixed block of encapsulation shell, the top contact of encapsulation shell has the encapsulation lid, sliding connection has the bolt in the encapsulation lid, the bolt with the fixed block passes through threaded connection, the bottom fixedly connected with cushion of encapsulation lid, the cushion with lithium battery group contact.

Preferably, the mounting cover is disc-shaped, and the mounting cover is made of plastic materials. Through the design of installation lid, the installation of dust filter net of being convenient for.

Preferably, the number of the cushion blocks is four, the four cushion blocks are uniformly distributed on the packaging cover, and the cushion blocks are made of insulating silica gel. Through the design of cushion, can advance spacingly to the vertical direction of lithium cell group.

Preferably, the outside of bolt sliding sleeve has cup jointed the support cover, the support cover with encapsulation lid and fixed block all contact. Through the design of support sleeve, have antirust effect to the bolt.

Preferably, a limiting sleeve is fixedly connected to the inner side of the packaging shell, and the limiting sleeve is in sliding connection with the lithium battery pack. Through the design of stop collar, can carry out spacingly to the horizontal direction of lithium cell group.

Preferably, the anti-blocking mechanism comprises a fixed sleeve, a rotating shaft, an impeller and a brush, wherein the fixed sleeve is fixedly connected with the dust filtering net, the rotating shaft is arranged in the fixed sleeve through a bearing, one end of the rotating shaft is fixedly connected with the impeller, the other end of the rotating shaft is fixedly connected with the brush, and the brush is in contact with the dust filtering net. Through the design of anti-blocking mechanism, can prevent the jam of dust filter net, guarantee ventilation radiating normal.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the packaging shell is arranged, the lithium battery pack is arranged in the packaging shell, two air passages are arranged on the side wall of the packaging shell and are used for air intake and exhaust, dust filtering nets are arranged on the air passages, a fan is arranged in one air passage and used for drainage, the fan is used as a heat dissipation structure, an anti-blocking mechanism is arranged on one dust filtering net serving as an air inlet, the impeller is driven to rotate by the air flow of the fan, and the impeller drives the hairbrush to rotate through the rotating shaft, so that the hairbrush rotates on the outer surface of the dust filtering net, dust, such as Mao Xuzhuang, blocked by the dust filtering net can be swept, blocking of the dust filtering net is prevented, ventilation is ensured to be normal, and heat dissipation efficiency is further ensured.

2. According to the utility model, the limit sleeve is arranged in the packaging shell and used for limiting the horizontal direction of the lithium battery pack, the packaging cover is arranged on the packaging shell through the bolts, the four cushion blocks are arranged on the packaging cover, and are made of insulating silica gel materials, and after the packaging cover is arranged, the cushion blocks are abutted against the four corners at the top of the lithium battery pack, so that the vertical direction of the lithium battery pack can be limited, and the stability of the lithium battery pack and the lithium battery pack arranged in the packaging shell is ensured.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present utility model;

fig. 3 is an enlarged view of the anti-blocking mechanism of fig. 2 of the present utility model.

In the figure: 1. a package housing; 2. a lithium battery pack; 3. an airway; 4. a blower; 5. a mounting cover; 6. a dust filtering net; 7. an anti-blocking mechanism; 8. a limit sleeve; 9. a fixed block; 10. a package cover; 11. a bolt; 12. a support sleeve; 13. a cushion block; 71. a fixed sleeve; 72. a rotating shaft; 73. an impeller; 74. a brush.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Please refer to fig. 1, fig. 2, a lithium battery pack with heat radiation structure, including encapsulation shell 1 and lithium battery pack 2, lithium battery pack 2 has been placed in the encapsulation shell 1, the inboard fixedly connected with stop collar 8 of encapsulation shell 1, stop collar 8 and lithium battery pack 2 sliding connection, through the design of stop collar 8, can carry out spacingly to the horizontal direction of lithium battery pack 2, two symmetrical distribution's air flue 3 of fixedly connected with in encapsulation shell 1, be provided with fan 4 in one of them air flue 3, all there is installation lid 5 through threaded connection on every air flue 3, installation lid 5 is the disc, installation lid 5 is the plastics material, through the design of installation lid 5, be convenient for the installation of dust screen 6, fixedly connected with dust screen 6 on the installation lid 5.

Referring to fig. 2, a fixing block 9 is fixedly connected to the inner side of the packaging shell 1, a packaging cover 10 is contacted with the top of the packaging shell 1, threading holes are formed in the packaging cover 10 or the packaging shell 1, not shown in the drawing, a wire harness of the lithium battery pack 2 can be threaded out, a bolt 11 is slidably connected to the packaging cover 10, a supporting sleeve 12 is slidably sleeved outside the bolt 11, the supporting sleeve 12 is contacted with the packaging cover 10 and the fixing block 9, the bolt 11 has an antirust effect on the supporting sleeve 12, the bolt 11 is in threaded connection with the fixing block 9, cushion blocks 13 are fixedly connected to the bottom of the packaging cover 10, the cushion blocks 13 are contacted with the lithium battery pack 2, the number of the cushion blocks 13 is four, the four cushion blocks 13 are uniformly distributed on the packaging cover 10, the cushion blocks 13 are made of insulating silica gel materials, and the vertical direction of the lithium battery pack 2 can be limited through the design of the cushion blocks 13.

Referring to fig. 2 and 3, an anti-blocking mechanism 7 is disposed on the dust filtering net 6, the anti-blocking mechanism 7 includes a fixing sleeve 71, a rotating shaft 72, an impeller 73 and a brush 74, the fixing sleeve 71 is fixedly connected with the dust filtering net 6, the rotating shaft 72 is mounted in the fixing sleeve 71 through a bearing, one end of the rotating shaft 72 is fixedly connected with the impeller 73, the other end of the rotating shaft 72 is fixedly connected with the brush 74, and the brush 74 is in contact with the dust filtering net 6. Through the design of anti-blocking mechanism 7, can prevent the jam of dust filter 6, guarantee ventilation and heat dissipation's normal.

The specific implementation process of the utility model is as follows: during the use, place lithium cell group 2 in encapsulation shell 1, and put into stop collar 8, can carry out corresponding connection to the horizontal direction of lithium cell group 2 like this, then pass encapsulation lid 10 with bolt 11 and overlap support sleeve 12, then with bolt 11 threaded connection on the fixed block 9 of encapsulation shell 1 inboard, screw up behind the bolt 11, cushion 13 on encapsulation lid 10 conflict to lithium cell group 2, can advance spacingly to the vertical direction of lithium cell group 2 like this, thereby guaranteed lithium cell group 2 and the stability of arranging in encapsulation shell 1, carry out the correspondence after wearing out the pencil of lithium cell group 2 from the line hole of seting up on encapsulation shell 1 or encapsulation lid 10 afterwards, can produce heat when lithium cell group 2 supplies power, fan 4 will outside air introduce encapsulation shell 1 through air this moment, then discharge the heat of lithium cell group 2 from another air flue 3, thereby reach the purpose of air flue 3, and the dust in the dust filter screen 6 of installation can be with the air and other Mao Xuzhuang's dust interception, prevent to pile up on lithium cell group 2, thereby prevent to pile up the dust in the air flue 2, and the fan filter screen 3 has driven the air current filter screen 3 and has driven the dust filter screen 73, thereby can be rotated, the fan 3774 is guaranteed to the air current filter screen is rotated, the fan 3 is driven, the dust can be rotated, and the fan 3774 is prevented from rotating, the fan 3 is rotated, and is guaranteed, and the fan is rotated, and is blown down, and is guaranteed.

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

Claims (5)

1. The utility model provides a lithium battery group with heat radiation structure, includes encapsulation shell (1) and lithium battery group (2), its characterized in that: the lithium battery pack (2) is placed in the packaging shell (1), two symmetrically distributed air passages (3) are fixedly connected in the packaging shell (1), one air passage (3) is internally provided with a fan (4), each air passage (3) is fixedly connected with a mounting cover (5) through threads, the mounting cover (5) is fixedly connected with a dust filtering net (6), the dust filtering net (6) is provided with an anti-blocking mechanism (7), the inner side of the packaging shell (1) is fixedly connected with a fixed block (9), the top of the packaging shell (1) is contacted with a packaging cover (10), bolts (11) are connected in a sliding manner in the packaging cover (10), the bolts (11) are connected with the fixed block (9) through threads, the bottom of the packaging cover (10) is fixedly connected with a cushion block (13), and the cushion block (13) is contacted with the lithium battery pack (2);

the anti-blocking mechanism (7) comprises a fixed sleeve (71), a rotating shaft (72), an impeller (73) and a brush (74), wherein the fixed sleeve (71) is fixedly connected with the dust filtering net (6), the rotating shaft (72) is installed in the fixed sleeve (71) through a bearing, one end of the rotating shaft (72) is fixedly connected with the impeller (73), the other end of the rotating shaft (72) is fixedly connected with the brush (74), and the brush (74) is in contact with the dust filtering net (6).

2. The lithium battery pack with a heat dissipation structure according to claim 1, wherein: the mounting cover (5) is disc-shaped, and the mounting cover (5) is made of plastic materials.

3. The lithium battery pack with a heat dissipation structure according to claim 1, wherein: the number of the cushion blocks (13) is four, the four cushion blocks (13) are uniformly distributed on the packaging cover (10), and the cushion blocks (13) are made of insulating silica gel.

4. The lithium battery pack with a heat dissipation structure according to claim 1, wherein: the outside of bolt (11) sliding sleeve has cup jointed support cover (12), support cover (12) with encapsulation lid (10) all contact with fixed block (9).

5. The lithium battery pack with a heat dissipation structure according to claim 1, wherein: the lithium battery pack is characterized in that a limiting sleeve (8) is fixedly connected to the inner side of the packaging shell (1), and the limiting sleeve (8) is in sliding connection with the lithium battery pack (2).