CN209658358U - A kind of high temperature is from opening heat-radiation dynamic cell component - Google Patents

Abstract

The utility model discloses a high-temperature self-starting and heat-dissipating power battery assembly, which comprises a box body composed of an outer box and an inner box. The bottom support bar and the side support bar of the box, the battery body is arranged in the inner box, the air flow chamber is between the inner box and the outer box, the top of the outer box has a cover plate, and the cover plate is provided with a hole for connecting the battery body There is an exhaust window in the center of the cover plate and a cooling fan in the center of the positive electrode connector and the negative electrode connector; this device is provided with an exhaust window with a cooling fan on the cover plate, and simultaneously on the cover plate Setting the temperature control connector to start the cooling fan at high temperature not only ensures the effective heat dissipation of the device in the long-term working state, but also avoids the waste of electric energy caused by the synchronous start of the cooling fan in the short-time working state, thus greatly improving the battery life. power utilization rate.

Description

A high-temperature self-starting heat-dissipating power battery component

technical field

The utility model relates to a battery, in particular to a high-temperature self-starting and heat-dissipating power battery assembly.

Background technique

The power battery is the power source that provides the power source for the tool, and mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts.

Power batteries are currently mainly lithium batteries. During the working process of lithium batteries, a lot of heat will be generated, and continuous high temperature work is an important reason for the reduction of lithium battery life.

Most of the current power batteries have battery boxes to prevent impact damage, and some battery boxes will also be equipped with corresponding heat dissipation components to cool down the battery during operation. Common heat dissipation components are mainly divided into active and passive types. Passive types are mostly cooling fins, and the active type is mostly a cooling fan connected to the battery, but the existing active cooling component control method is not very reasonable, most of them start cooling when the battery power supply starts, and when the battery is working for a short time, It will not generate too much heat, and the synchronous start will greatly affect the power utilization of the battery.

Utility model content

The purpose of this utility model is to provide a high-temperature self-starting and heat-dissipating power battery assembly to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A high-temperature self-starting heat-dissipating power battery assembly, including a box body composed of an outer box and an inner box, the inner box is located inside the outer box, and a plurality of bottom support rods for supporting the inner box are respectively arranged on the inner side and inner bottom of the outer box and side support rods, the inner box is provided with a battery body, the air flow chamber is between the inner box and the outer box, the top of the outer box has a cover plate, and the cover plate is provided with a positive terminal and a negative terminal for connecting the battery body , an exhaust window is opened in the center of the cover plate, and a cooling fan is arranged in the exhaust window, and the driving motor of the cooling fan is electrically connected to the positive terminal and the negative terminal through the positive connection line and the negative connection line respectively; There is a temperature control connector on the board. The temperature control connector includes a cylindrical chute. One end of the chute near the exhaust window is provided with a fixed plate, and the other end is an open structure and is connected with the negative terminal. There is a sliding plate slidably connected to it, and the negative connection line is located between the fixed plate and the sliding plate, and a conductive joint connected with the negative connection line is provided in the fixed plate and the sliding plate, and between the fixed plate and the sliding plate A memory metal rod is provided, and the memory metal rod is made of a nickel-titanium memory alloy material.

At the same time, in order to ensure that the heat of the battery body is quickly transferred to the airflow cavity for heat dissipation under long-term working conditions, a plurality of heat dissipation channels are provided at the bottom of the inner box. The heat dissipation channels include vertical sections on the upper and lower sides and vertical sections. Bend segments between segments.

As a preferred solution of the present invention: the bottom support rod and the side support rod are both hollow rods, and the ends connected to the outer box of the bottom support rod and the side support rod are all open structures.

Compared with the prior art, the beneficial effect of the utility model is: the device is provided with an exhaust window with a heat dissipation fan on the cover plate, and a temperature control connector for starting the heat dissipation fan at a high temperature is set on the cover plate at the same time, It not only ensures the effective heat dissipation of the device in the long-time working state, but also avoids the waste of electric energy caused by the synchronous start of the cooling fan in the short-time working state, thereby greatly improving the power utilization rate of the battery body.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an enlarged view of A in the utility model.

FIG. 3 is a structural schematic diagram of the heat dissipation channel in the present invention.

In the figure 1-outer box, 11-bottom support rod, 12-side support rod, 13-cover plate, 14-positive terminal, 15-negative terminal, 16-exhaust window, 17-cooling fan, 18-positive connecting line , 2-inner box, 21-cooling channel, 22-vertical section, 23-curved section, 3-battery body, 4-temperature control connector, 41-chute, 42-fixed plate, 43-sliding plate, 44 -memory metal rod, 45-negative connection wire, 46-conductive joint, 5-air flow chamber.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Example 1:

Please refer to Figure 1-3, a high-temperature self-starting heat dissipation power battery assembly, including a box body composed of an outer box 1 and an inner box 2, the inner box 2 is located inside the outer box 1, and is on the inner side and inner bottom of the outer box 1 There are a plurality of bottom support rods 11 and side support rods 12 for supporting the inner box 2. The inner box 2 is provided with a battery body 3, and an air flow chamber 5 is formed between the inner box 2 and the outer box 1. The top of the outer box 1 There is a cover plate 13 on which a positive terminal 14 and a negative terminal 15 for connecting the battery body 3 are provided, and an exhaust window 16 is opened in the center of the cover plate 13, and a cooling fan is arranged in the exhaust window 16 17. The drive motor of the cooling fan 17 is electrically connected to the positive connector 14 and the negative connector 15 through the positive connection wire 18 and the negative connection wire 45 respectively; a temperature control connector 4 is provided on the cover plate 13, and the temperature control The connection 4 is used to control the on-off connection of the negative connection line 45 and the negative connector 15. The temperature control connector 4 includes a cylindrical chute 41, and one end of the chute 41 near the exhaust window 16 is provided with a fixing plate 42 and the other end It is an open structure and is docked with the negative terminal 15. A sliding plate 43 is slidably connected to it in the chute 41. The negative connection line 45 is located between the fixed plate 42 and the sliding plate 43. Between the fixed plate 42 and the sliding plate 43 There is a conductive joint 46 connected to the negative connection line 45 inside, and a memory metal rod 44 is arranged between the fixed plate 42 and the sliding plate 43. The memory metal rod 44 is made of nickel-titanium memory alloy material. It is in a bent state and expands and stretches when the temperature rises; when the battery body 3 is disconnected, the memory metal rod 44 is in a bent state, the sliding plate 43 is separated from the negative terminal 15, and when the battery body 3 is connected to power supply, it itself generates heat Make the temperature in the air flow chamber 15 rise, and firstly carry out natural heat dissipation through the exhaust window 16. When the metamorphic temperature point of the memory metal rod 44 is reached, the memory metal rod 44 expands and stretches, and the sliding plate 43 is pushed to move so that it fits with the negative electrode connector 15 Docking makes a circulation circuit between the cooling fan 17 and the battery body 3, and the cooling fan 17 works to generate an upward airflow, which accelerates the discharge of high-temperature air; and when the battery body 3 is disconnected, the temperature slowly drops to the memory metal rod 44 When the metamorphic temperature point is below the abnormal temperature point, the memory metal rod 44 is retracted and bent again, so that the sliding plate 43 is separated from the negative electrode connector 15, and the heat dissipation fan 17 stops working; the control of the heat dissipation fan 17 switch is carried out through the temperature control connector 4, which not only ensures The effective heat dissipation of the device in the long-time working state also avoids the waste of electric energy caused by the synchronous start of the cooling fan 17 in the short-time working state, thereby greatly improving the power utilization rate of the battery body 3 .

At the same time, in order to ensure that the heat of the battery body 3 is quickly transferred to the airflow chamber 5 for heat dissipation in the long-term working state, the bottom of the inner box 2 is provided with a plurality of heat dissipation channels 21, and the heat dissipation channels 21 include vertical channels on the upper and lower sides The curved section 23 between the straight section 22 and the vertical section 22, the heat dissipation channel 21 effectively increases the contact area between the inner box 2 and the airflow chamber 5, and quickly transfers heat, and through the setting of the curved section 23, when there is water vapor in the airflow chamber When the water vapor rises, it can collide with the curved section 23 to form liquid droplets, so as to prevent the water vapor from continuing to rise and disturb the battery body 3, and ensure a safe working environment for the battery body 3.

Example 2:

The difference from Embodiment 1 is that, in order to further improve the heat dissipation effect, the bottom support rod 11 and the side support rod 12 are both hollow rods, and the ends connected to the outer box 1 of the bottom support rod 11 and the side support rod 12 are both open structure, thereby greatly increasing the contact area between the outer box 1 and the outside world, and rapidly dissipating heat.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A high-temperature self-starting heat-dissipating power battery assembly, including a box body composed of an outer box (1) and an inner box (2), the inner box (2) is located inside the outer box (1), and the inner box (2) is equipped with There is a battery body (3), an airflow chamber (5) between the inner box (2) and the outer box (1), the outer box (1) has a cover plate (13) on the top, and the cover plate (13) is A positive terminal (14) and a negative terminal (15) for connecting the battery body (3) are provided, an exhaust window (16) is opened in the center of the cover plate (13), and a heat sink is arranged in the exhaust window (16). fan (17), the driving motor of the heat dissipation fan (17) is electrically connected to the positive connector (14) and the negative connector (15) through the positive connecting wire (18) and the negative connecting wire (45) respectively; 13) is provided with a temperature control connector (4), characterized in that the temperature control connector (4) includes a cylindrical chute (41), and the chute (41) is close to the exhaust window (16) One end is provided with a fixed plate (42), the other end is an open structure and docked with the negative electrode connector (15), and a sliding plate (43) slidingly connected to it is provided in the chute (41), and the negative electrode connection line (45) Located between the fixed plate (42) and the sliding plate (43), the conductive joint (46) connected with the negative connection line (45) is provided in the fixed plate (42) and the sliding plate (43), and the fixed plate A memory metal rod (44) is provided between (42) and the sliding plate (43). 2. A high-temperature self-starting and heat-dissipating power battery assembly according to claim 1, characterized in that the memory metal rod (44) is made of nickel-titanium memory alloy material. 3. A high-temperature self-starting heat-dissipating power battery assembly according to claim 1, characterized in that, the inner surface and the inner bottom surface of the outer box (1) are respectively provided with a plurality of bottom supports for supporting the inner box (2) Rod (11) and side support rod (12). 4. A high-temperature self-starting heat dissipation power battery assembly according to claim 1, 2 or 3, characterized in that, the bottom of the inner box (2) is provided with a plurality of heat dissipation channels (21), and the heat dissipation channels (21) includes vertical sections (22) on the upper and lower sides and a curved section (23) between the vertical sections (22). 5. A high-temperature self-starting heat dissipation power battery assembly according to claim 3, characterized in that, the bottom support rod (11) and the side support rod (12) are both hollow rods, and the bottom support rod (11) One end connected with the side support bar (12) and the outer box (1) is an open structure.