CN206422107U - A kind of echelon utilizes the device in groups of electrokinetic cell - Google Patents

Abstract

The utility model discloses a grouping device for step-by-step utilization of power batteries. The device comprises: a base, a battery partition and a surrounding board; the base comprises a bracket, a supporting plate and wheels. The technical solution provided by the utility model adopts an adjustable structure, which can conveniently reuse the power battery, improves the economical efficiency of the power battery, and greatly reduces the cost of cascade utilization of the battery energy storage system.

Description

A group device for cascade utilization of power batteries

technical field

The utility model belongs to the technical field of energy storage, and in particular relates to a grouping device for step-by-step utilization of power batteries.

Background technique

In recent years, with the rapid development of electric vehicles, the scale of power batteries for electric vehicles is also expanding day by day. Due to the high energy requirements of the battery system for electric vehicles, the energy of a single battery cannot meet the requirements of electric vehicles. When power batteries are used in electric vehicles, they are used in groups in the vehicle, that is, the single battery first The battery pack is composed of series and parallel, fixed in the battery box, and then used in electric vehicles. At present, there is no unified standard for power battery specifications for electric vehicles. Each power battery manufacturer uses its own battery specifications. For power batteries of different specifications, battery boxes must be specially developed to realize the grouping of batteries.

Electric vehicles have high requirements on the performance of the power battery. When the performance of the power battery drops to a certain level (capacity decays to 70-80% of the rated capacity), in order to ensure the power performance, driving range and operating process of the electric vehicle safety performance, it must be replaced. The batteries decommissioned from electric vehicles still have high residual energy. After screening and regrouping, these batteries may be used in occasions with relatively good working conditions and relatively low requirements on battery performance to realize the echelon of power batteries use. However, after long-term use of power batteries, in addition to the degradation of battery performance, the performance difference between batteries also becomes significantly larger, and some batteries may have greater safety hazards, which no longer have the value of cascade utilization. Before cascading utilization, the decommissioned batteries need to be re-screened and assembled. Due to the different battery specifications produced by different manufacturers, many of the original battery boxes have suffered from mechanical performance degradation and box deformation after long-term use, and after dismantling the battery pack, most battery boxes can no longer be used for secondary use Therefore, when cascade utilization is carried out, for batteries of different specifications, it is necessary to specially design and process the box for the battery group, which greatly increases the cost of power battery cascade utilization. At the same time, compared with new batteries, retired power batteries The value of the power battery itself has been reduced a lot. If a lot of additional investment is required in the cascade utilization process, the economy of the power battery cascade utilization will be greatly reduced.

Utility model content

In order to fill and overcome the gaps and deficiencies of the above-mentioned prior art, the utility model provides a grouping device for cascaded utilization of power batteries. By adjusting the position of the battery baffle to fix the battery, it can adapt to different sizes Battery, reuse of jig are convenient, too.

The utility model adopts the following technical solutions:

A group device for cascade utilization of power batteries, characterized in that the device includes: a base 1 , battery partitions 2 and enclosures 3 ; the base 1 includes brackets, support plates and wheels 6 .

Further, the cross section of the battery partition 2 is an inverted T shape, the vertical height of the inverted T shape is smaller than the height of the power battery, and its longitudinal length is greater than or equal to the length or width of the power battery.

Further, the number of the battery compartments 2 is at least two, and they are arranged parallel to each other on the support plate.

Further, the shroud 3 is a U-shaped cross-section, which is located at both ends and both sides of the support plate, and the openings are mirror-symmetrical to the outside respectively. The ends thereof are stacked to form a rectangle parallel to the support plate; the number of layers of the enclosure formed by the two ends and the two sides on the support plate is at least two.

Further, the shroud 3 is provided with two holes in the horizontal direction through the U-shape in the vertical direction.

Further, the support plate is provided with grooves or holes corresponding to the holes on the surrounding plate 3 .

Further, the support plate is connected with the enclosure plate 3 through the holes on the support plate and the enclosure plate through the adjusting member 4 respectively.

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

1. The utility model adopts a structural part with adjustable size, which can be reused and improves the economy of material use.

2. The device adopted in the utility model is compatible with various types of decommissioned electric vehicle power batteries, thereby improving the economy of cascade utilization of decommissioned electric vehicle power batteries, and greatly reducing the cost of cascade utilization of battery energy storage systems.

3. The utility model adopts a movable structure, which is convenient to use and saves manpower.

Description of drawings

Fig. 1 is the front view of the structure diagram of the battery pack;

Fig. 2 is the left view of the structure diagram of the battery pack;

Fig. 3 is a top view of the structure diagram of the battery pack;

Figure 4 is a structural diagram of the battery compartment;

Among them: 1-base; 2-battery partition; 3-coaming; 4-adjusting parts; 5-battery lugs; 6-wheels; a-half of the minimum thickness of the battery.

detailed description

The device of the present invention will be described in further detail below in conjunction with the accompanying drawings.

The utility model is composed of a base 1, a battery compartment 2 and a surrounding board 3. The battery compartment is convenient for the battery to move forward and backward on the bottom plate and adapt to the change of battery thickness. Variation range of battery thickness: the minimum thickness of the battery that can be installed is a × 2 (a see the attached picture of the battery compartment), the maximum thickness of the battery that can be installed, firstly consider the damage of the battery compartment caused by the weight of the battery itself or the battery itself being damaged by the battery The partitions are broken, and the total size of the battery pack composed of the minimum number of cells exceeds the adjustment range of the side panels. The design of the thickness of the battery compartment baffle shall take into account the allowable thickness deformation of the battery to be installed.

The shroud 3 is a U-shaped cross-section, which is located at both ends and both sides of the support plate, and the openings are mirror-symmetrical to the outside respectively. Stacked to form a rectangle parallel to the support plate; the two ends and two sides of the surrounding plates constitute at least two layers of the surrounding plates on the supporting plate. The shroud can be regulated and fixed by adjusting the adjusting piece in the holes at both ends of the supporting plate and the two ends of the shroud, and the adjusting piece runs through the shroud and is connected to the support plate. The holes are on the two vertical surfaces of the U-shaped enclosure and pass through the two vertical surfaces in the horizontal direction.

The maximum width of the battery that can be installed should be less than the width between two battery compartments, and the minimum width should be within the reasonable and economical range of battery pack installation, construction and economy.

The device is compatible with various specifications of decommissioned electric vehicle power batteries, enabling decommissioned power batteries to be conveniently used in stationary energy storage systems, reducing the cost of power battery cascade utilization, and improving the economy of power battery cascades.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application rather than to limit its protection scope. Although the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: After reading this application, those skilled in the art can still make various changes, modifications or equivalent replacements to the specific implementation methods of the application, but these changes, modifications or equivalent replacements are all within the scope of protection of the special approval of the application.

Claims (6)

1. A grouping device for cascade utilization of power batteries, characterized in that the device includes: a base (1), battery partitions (2) and enclosures (3); the base (1) includes brackets, supports boards and wheels (6); The shroud (3) is a U-shaped cross-section, which is located at both ends and both sides of the support plate, and the openings are mirror-symmetrical to the outside respectively. The ends are stacked to form a rectangle parallel to the support plate; the number of layers of the walls formed by the two ends and the two sides on the support plate is at least two. 2. A grouping device for cascaded power batteries according to claim 1, characterized in that, the cross-section of the battery partition (2) is an inverted T shape, and the vertical height of the inverted T shape is less than The height of the power battery and its longitudinal length are greater than or equal to the length or width of the power battery. 3. A grouping device for cascade utilization of power batteries according to claim 2, characterized in that, the number of the battery partitions (2) is at least two, and they are arranged parallel to each other on the support plate. 4. A grouping device for cascade utilization of power batteries according to claim 1, characterized in that, the enclosure (3) is provided with two holes in the horizontal direction penetrating the U-shaped vertical direction. 5 . The cascade utilization power battery assembly device according to claim 4 , characterized in that, the support plate is provided with grooves or holes corresponding to the holes on the enclosure plate ( 3 ). 6 . 6. A grouping device for cascade utilization of power batteries according to claim 5, characterized in that, the support plate and the surrounding plate (3) respectively pass through the support plate and the surrounding plate (3) through the adjustment member (4). Hole connections in the hoarding.