Battery carrier interlock system

Abstract

The present invention relates to an interlock system that increases the impact resistance in the event of damage to the battery carrier, which has a cooling plate (5) on the top and a cover (4) underneath, and ensures the protection of the modules inside.

Description

[0001] BATTERY CARRIER INTERLOCK SYSTEM

[0002] Field of the Invention

[0003] The invention relates to an interlock system used in battery carriers in electric vehicles.

[0004] State of the Art

[0005] Today, battery carriers are structures that generally carry battery packs in electric vehicles (EVs), and these structures are placed under the vehicle or in the trunk. These carriers ensure that the batteries are placed safely inside the vehicle and also provide electrical connections to the batteries.

[0006] In the state of the art, battery carriers are generally fixed to the chassis or substructure of the vehicle. These carriers are securely fastened using special attachment points or fasteners (screws, latches, brackets, etc.) to hold the battery modules in place.

[0007] In the state of the art, battery carriers are fixed to the vehicle from the connection points on the side profiles. The middle crosses carrying the modules are connected to the side profiles from the inside using welding / riveting / mechanical connection methods. During a side impact, the force is applied directly to the side profile and the side profile undergoes plastic deformation. The deformed side profile moves the battery carrier towards the inner area, and depending on the amount of impact, it moves up to the modules, and this is an undesirable situation.

[0008] In case of direct welding of the middle cross members (horizontal structural elements of the vehicle chassis / beam / cross member) and the side profiles, the length tolerances of the middle beams must be given as negative in order to ensure the assembly of the middle beams in mass production, considering the flatness of the side profiles and the length tolerances of the middle beams. Consequently, if tolerance accumulation occurs, the weld quality is seriously affected negatively. In case this problem is solved, it has been observed that some battery carriers use welding or mechanical joining methods using additional brackets. This solution method increases the process time and therefore the cost and necessitates the use of additional fasteners.As a result due to the abovementioned disadvantages and the insufficiency of the current solutions regarding the subject matter, a development is required to be made in the relevant technical field.

[0009] Object of the Invention

[0010] The present invention aims to solve the above-mentioned negativities and it is inspired by the current situation

[0011] The main object of the present invention is to provide an interlock system that allows damage to the side profiles during impact to be transferred to the other profiles of the battery carrier via the center vertical profiles.

[0012] Another object of the present invention is to increase the impact resistance of the carrier by ensuring that the incoming damage is not only borne by the side profile in the direction of the damage.

[0013] Another object of the present invention is to provide a system with high strength in terms of energy absorption thanks to the B and L sections of the middle and side profiles produced by the roll forming method.

[0014] Another object of the present invention is to extend the middle vertical profiles through the side profiles to the vehicle connection point, thus opening the holes at the connection point after assembly, thus eliminating the tolerance problem at this point and allowing wider length tolerances since the vertical profile dimensions do not have the current limitations. In this way, a cheap product is offered.

[0015] In order to achieve the above-mentioned objects, the present invention provides a an interlock system that increases the impact resistance in case of damage to the battery carrier, which has a cooling plate on the top and a cover thereunder, characterized by comprising;

[0016] • A durable side profile that is produced with a roll forming process, provides energy absorption and protects the modules inside the battery and

[0017] A durable middle vertical profile that is mounted on the side profile without the need for any welding and provides energy absorptionproduced by the roll form process, thus protecting the modules inside the battery.

[0018] The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings and therefore the evaluation shall be made by taking these figures and the detailed description into consideration.

[0019] Figures Clarifying the Invention

[0020] Figure 1 is the view of the mounting of the interlock system.

[0021] Figure 2 is the side view of the interlock system.

[0022] Figure 3 is the view of the mounting of the interlock system with the cooling plate.

[0023] Description of the Reference of the Elements

[0024] 1. Side profile

[0025] 2. Middle vertical profile

[0026] 3. Bush

[0027] 4. Cover

[0028] 5. Cooling plate

[0029] Detailed Description of the Invention

[0030] In this detailed description, the preferred embodiments of the interlock system are described solely for the purpose of a better understanding of the subject matter.

[0031] The interlock system of the present invention that increases the impact resistance in case of damage to the battery carrier, which has a cooling plate (5) on the top and a cover (4) underneath, in its most basic form, it comprises a side profile (1), a middle vertical profile (2) and bushes (3).

[0032] The mentioned side profile (1) is produced by the roll forming process and is a part with an L-section, a durable form and high energy absorption. The middle vertical profile (2) is mounted to the side profiles without any welding process. The mentioned middlevertical profile (2) is produced by the roll forming process and has a B section form structure. The assembly of the side profile (1) and the middle vertical profile (2) is provided by the bush (3). By completing the assembly of the mentioned profiles with the bushing, it protects the modules inside the battery carrier from impacts and possible damage by providing maximum energy absorption.

[0033] In the interlock system which is the subject of the invention, the middle vertical profiles (2) will carry the battery carriers and therefore need to be rigid and durable, and the side profiles (1) on the contrary will need to have a structure with damage damping properties, so that the damage to the side profiles during the damage will be transferred to the other profiles of the battery carrier via the middle vertical profiles. Thus, the impact resistance of the carrier will be increased since the damage will not only be borne by the side profile (1 ) in the direction of the damage.

[0034] Since the middle vertical profiles (2) are extended through the side profiles (1) to the vehicle connection point, the holes at the connection point will be opened after assembly, and the tolerance problem at this point will be eliminated, and since the vertical profile dimensions do not have any current limitations, the length tolerances will be wider. This also makes the product cheaper.

Claims

CLAIMS1. An interlock system that increases the impact resistance in the event of damage to the battery carrier, which has a cooling plate (5) on the top and a cover (4) underneath, characterized by comprising;• A durable side profile (1) that is produced with a roll forming process, provides energy absorption and protects the modules inside the battery and• A durable middle vertical profile (2) that is mounted on the side profile (1) without the need for any welding and provides energy absorption produced by the roll form process, thus protecting the modules inside the battery.

2. An interlock system according to claim 1 , characterized by comprising a bush (3) that allows the side profile (1) and the middle vertical profile (2) to be assembled to each other.

3. An interlock system according to claim 1 , characterized in that; said side profile (1) is in the form of an “L” section.

4. An interlock system according to claim 1, characterized in that; said middle vertical profile (2) is in the form of a “B” section.