CN219106304U

CN219106304U - Energy storage device with preheat function

Info

Publication number: CN219106304U
Application number: CN202222916653.7U
Authority: CN
Inventors: 郭正好
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-05-30
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to the technical field of energy storage devices, in particular to an energy storage device with a preheating function, which comprises a box body; the box body is provided with a bracket; a plurality of battery packs are arranged on the bracket at intervals; a first heating plate is arranged between two adjacent battery packs; the first heating plate is provided with a first heating piece; a second heating plate is arranged on the side face of the box body; the second heating plate is provided with a second heating piece. According to the utility model, the first heating plates with the first heating parts are arranged between the two adjacent battery packs, so that the battery packs of the two adjacent battery packs can be uniformly and fully preheated, and when the external temperature environment is too low, the preheating speed can be increased by the second heating parts with the second heating parts.

Description

Energy storage device with preheat function

Technical Field

The utility model relates to the technical field of energy storage devices, in particular to an energy storage device with a preheating function.

Background

The electric energy is an indispensable energy supply mode in daily life and is used for driving various electric appliances and electric devices, and in a field environment, the electric energy is inconvenient for users due to the lack of power supply, so that a portable power supply appears in the market.

The current portable power supply is mostly charged by a lithium battery, and under the low-temperature condition, the charging efficiency of the lithium battery is only 65% of that of the lithium battery at 15 ℃ below zero, especially at-20 ℃, and the performance of the lithium battery is seriously degraded under the low-temperature condition.

Therefore, after the portable power supply is placed at a low temperature for a period of time, preheating operation is performed first before starting, and chinese patent application No. CN201621068470.2 discloses a battery pack with a preheating function, but a heating film of the battery pack is disposed at a bottom of a battery module, and the bottom of the battery module is preferentially heated during heating, and the top of the battery module is insufficiently heated.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide an energy storage device with a preheating function, which can perform preheating operation on an energy storage battery and is sufficient in preheating.

The aim of the utility model is achieved by the following technical scheme: an energy storage device with a preheating function comprises a box body; the box body is provided with a bracket; a plurality of battery packs are arranged on the bracket at intervals; a first heating plate is arranged between two adjacent battery packs; the first heating plate is provided with a first heating piece; a second heating plate is arranged on one side surface of the box body; the second heating plate is provided with a second heating piece.

The utility model is further arranged that the second heating plate is arranged on the same side of all the battery packs; the first heating plate is electrically connected with the second heating plate.

The utility model is further arranged that a third heating plate is arranged on the other side surface of the box body; the second heating plate is provided with a third heating piece;

the third heating plates are arranged on the other sides of all the battery packs; the first heating plate is electrically connected with the third heating plate.

The utility model is further arranged that the first heating element is a heating wire; the heating wire is arranged on the first heating plate in a winding shape.

The utility model is further arranged that a plurality of ventilation holes are formed in the first heating plate in a penetrating mode at the gap of the heating wire.

The utility model is further arranged that the second heating element comprises a plurality of first heating MOS tubes; the plurality of first heating MOS tubes are arranged on the second heating plate in a horizontal line.

The third heating element comprises a plurality of second heating MOS tubes; the plurality of second heating MOS tubes are arranged on the third heating plate in a horizontal line.

The utility model is further arranged that one side of the top of the first heating plate is provided with a first temperature sensor; and a second temperature sensor is arranged on the other side of the top of the first heating plate.

The utility model is further arranged that the support comprises a plurality of spacers; each interval area is provided with a front positioning block, a rear positioning block, a left positioning block and a right positioning block;

a ventilation gap is arranged between the bottom of the battery pack and the bracket;

the bottom of the bracket is provided with a reinforcing rib.

The utility model is further arranged that one end of the box body is provided with an air inlet; the other end of the box body is provided with an air outlet; the air inlet is provided with an air inlet fan.

The utility model is further arranged that the air outlet is provided with an air outlet fan.

The utility model has the beneficial effects that: according to the utility model, the first heating plates with the first heating parts are arranged between the two adjacent battery packs, so that the battery packs of the two adjacent battery packs can be uniformly and fully preheated, and when the external temperature environment is too low, the preheating speed can be increased by the second heating parts with the second heating parts.

Drawings

The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the present utility model after concealing the case and one of the battery packs;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is an exploded view of the structure of the present utility model;

wherein: 1. a case body; 2. a bracket; 21. a spacer; 22. a front positioning block; 23. a rear positioning block; 24. a left positioning block; 25. a right positioning block; 26. a ventilation slit; 27. reinforcing ribs; 3. a battery pack; 4. a first heat generation plate; 41. a first heat generating member; 42. ventilation holes; 5. a second heating plate; 51. a second heat generating member; 6. a third heating plate; 61. a third heat generating member; 71. a first temperature sensor; 72. a second temperature sensor; 81. an air inlet; 82. and an air outlet.

Detailed Description

The utility model will be further described with reference to the following examples.

As can be seen from fig. 1 to 4, the energy storage device with preheating function according to the present embodiment includes a case 1; the box body 1 is provided with a bracket 2; a plurality of battery packs 3 are arranged on the bracket 2 at intervals; a first heating plate 4 is arranged between two adjacent battery packs 3; the first heating plate 4 is provided with a first heating element 41; a second heating plate 5 is arranged on the side surface of the box body 1; the second heating plate 5 is provided with a second heating element 51.

Specifically, in the energy storage device with preheating function according to the present embodiment, the first heating plates 4 with the first heating elements 41 are disposed between the two adjacent battery packs 3, so that the battery packs 3 of the two adjacent battery packs can be preheated uniformly and sufficiently, and when the external temperature environment is too low, the preheating speed can be accelerated by the second heating elements 51 serving as the second heating plates 5.

In the energy storage device with the preheating function of the embodiment, the second heating plates 5 are arranged on the same side of all the battery packs 3; the first heating plate 4 is electrically connected with the second heating plate 5.

Specifically, by the above arrangement, the second heating plate 5 is enabled to heat the same side of all the battery packs 3, so that the same or close heat can be supplied to each battery pack 3;

by electrically connecting the first heating plate 4 and the second heating plate 5, the wiring of the circuit and the control of the first heating element 41 and the second heating element 51 are facilitated.

In the energy storage device with the preheating function in this embodiment, a third heating plate 6 is disposed on the other side surface of the box body 1; the second heating plate 5 is provided with a third heating element 61;

the third heating plates 6 are arranged on the other sides of all the battery packs 3; the first heating plate 4 is electrically connected with the third heating plate 6.

Specifically, by the above arrangement, the third heat generation plate 6 is enabled to heat the other sides of all the battery packs 3, so that the same or close heat can be supplied to each battery pack 3;

by electrically connecting the first heating plate 4 and the third heating plate 6, the wiring of the circuit and the control of the first heating element 41 and the third heating element 61 are facilitated.

In the energy storage device with the preheating function of the present embodiment, the first heating element 41 is a heating wire; the heating wire is arranged on the first heating plate 4 in a winding manner. Specifically, the present embodiment enables preheating of the top, bottom, left side and right side of the battery pack 3 by disposing the first heating member 41 on the meandering-shaped heating wire, thereby enabling the battery pack 3 to be sufficiently preheated.

In the energy storage device with the preheating function of this embodiment, the first heating plate 4 is provided with a plurality of ventilation holes 42 at the gaps of the heating wires. Through the arrangement, air can circulate, so that heat is transmitted in the box body 1, and the battery pack 3 is further uniformly preheated.

In the energy storage device with the preheating function of this embodiment, the second heating element 51 includes a plurality of first heating MOS tubes; the plurality of first heating MOS tubes are arranged on the second heating plate 5 in a horizontal line. By the above arrangement, the battery pack 3 can be efficiently warmed up on one side.

The third heating element 61 comprises a plurality of second heating MOS tubes; the plurality of second heating MOS tubes are arranged on the third heating plate 6 in a horizontal line. The other side of the battery pack 3 can be effectively warmed up by the above arrangement.

In the energy storage device with the preheating function of the embodiment, a first temperature sensor 71 is arranged on one side of the top of the first heating plate 4; the other side of the top of the first heating plate 4 is provided with a second temperature sensor 72. Specifically, the above arrangement facilitates sensing the temperature of the battery pack 3 at different positions, thereby controlling the first heat generating member 41 or the second heat generating member 51 to operate.

In the energy storage device with the preheating function according to the present embodiment, the support 2 includes a plurality of spacers 21; each spacing zone is provided with a front positioning block 22, a rear positioning block 23, a left positioning block 24 and a right positioning block 25. The battery pack 3 is limited by the above arrangement.

In the energy storage device with the preheating function of the embodiment, a ventilation gap 26 is arranged between the bottom of the battery pack 3 and the bracket 2; through the arrangement, air can circulate, so that heat is transmitted in the box body 1, and the battery pack 3 is further uniformly preheated.

The bottom of the bracket 2 is provided with a reinforcing rib 27. The strength of the bracket 2 can be enhanced by the above arrangement.

In the energy storage device with the preheating function of the embodiment, an air inlet 81 is formed at one end of the box body 1; the other end of the box body 1 is provided with an air outlet 82; the intake port 81 is provided with an intake fan. In the energy storage device with the preheating function in this embodiment, the air outlet 82 is provided with an air outlet fan; the air inlet fan and the air outlet fan are not shown in the figure.

Specifically, in this embodiment, by providing the first heat generating element 41 and the second heat generating element 51, when the energy storage device is operated in a low-temperature environment, the battery pack 3 is preheated by starting the first heat generating element 41 of the first heat generating plate 4; when the energy storage device is in the ultra-low temperature environment, the first heating element 41, the second heating element 51 and the third heating element 61 need to be started to preheat the battery pack 3 at the same time; in order to prevent the battery pack 3 from being unevenly and insufficiently preheated, the first temperature sensor 71 and the second temperature sensor 72 are provided to detect the temperature at both sides of the battery pack 3, and when the temperature difference at both sides is greater than the threshold value, the air inlet fan is started to form convection with the air outlet 82 or the air outlet fan, and the air holes 42 and the ventilation slits 26 are provided to bring heat to the respective positions of the battery pack 3, thereby making the battery pack 3 even and sufficiently preheated.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. An energy memory with preheat function, its characterized in that: comprises a box body (1); the box body (1) is provided with a bracket (2); a plurality of battery packs (3) are arranged on the bracket (2) at intervals; a first heating plate (4) is arranged between two adjacent battery packs (3); the first heating plate (4) is provided with a first heating element (41); a second heating plate (5) is arranged on one side surface of the box body (1); the second heating plate (5) is provided with a second heating element (51).

2. An energy storage device with preheating function according to claim 1, characterized in that: the second heating plates (5) are arranged on the same side of all the battery packs (3); the first heating plate (4) is electrically connected with the second heating plate (5).

3. An energy storage device with preheating function according to claim 1, characterized in that: a third heating plate (6) is arranged on the other side surface of the box body (1); the second heating plate (5) is provided with a third heating element (61);

the third heating plates (6) are arranged on the other sides of all the battery packs (3); the first heating plate (4) is electrically connected with the third heating plate (6).

4. An energy storage device with preheating function according to claim 1, characterized in that: the first heating element (41) is a heating wire; the heating wire is arranged on the first heating plate (4) in a winding shape.

5. The energy storage device with preheating function according to claim 4, wherein: the first heating plate (4) is provided with a plurality of ventilation holes (42) in a penetrating mode at the gap of the heating wire.

6. An energy storage device with preheating function according to claim 3, characterized in that: the second heating element (51) comprises a plurality of first heating MOS tubes; the plurality of first heating MOS tubes are arranged on the second heating plate (5) in a horizontal line,

the third heating element (61) comprises a plurality of second heating MOS tubes; the plurality of second heating MOS tubes are arranged on the third heating plate (6) in a horizontal line.

7. An energy storage device with preheating function according to claim 1, characterized in that: a first temperature sensor (71) is arranged on one side of the top of the first heating plate (4); and a second temperature sensor (72) is arranged on the other side of the top of the first heating plate (4).

8. An energy storage device with preheating function according to any of claims 1-7, characterized in that: the stent (2) comprises a plurality of spacers (21); each interval area is provided with a front positioning block (22), a rear positioning block (23), a left positioning block (24) and a right positioning block (25);

a ventilation gap (26) is arranged between the bottom of the battery pack (3) and the bracket (2);

the bottom of the bracket (2) is provided with a reinforcing rib (27).

9. An energy storage device with preheating function according to any of claims 1-7, characterized in that: an air inlet (81) is formed in one end of the box body (1); the other end of the box body (1) is provided with an air outlet (82); the air inlet (81) is provided with an air inlet fan.

10. The energy storage device with preheating function according to claim 9, wherein: the air outlet (82) is provided with an air outlet fan.