Longitudinal beam insulating cover, power battery and vehicle

Abstract

The utility model provides a longitudinal beam insulating cover, a power battery and a vehicle, the longitudinal beam insulating cover comprises a cover body, the cover body comprises an insulating top plate and two insulating side plates, and the insulating top plate extends along a first direction; the two insulating side plates are connected to the same side of the insulating top plate in the third direction and are arranged at intervals in the second direction, and the insulating top plate and the two insulating side plates jointly define an insulating protection groove. According to the longitudinal beam insulating cover provided by the embodiment of the invention, the structure is simple, the installation is convenient, the assembly efficiency can be improved, and the production cost of a power battery is reduced; according to the longitudinal beam insulation cover, the cover body can be mounted after the battery cell module is assembled to the shell, so that the cover body is prevented from being damaged in the process of mounting the battery cell module, the structural integrity of the cover body is ensured, the cover body can reliably perform insulation protection on the longitudinal beam, the reliability of the longitudinal beam insulation cover is improved, and the safety performance of the power battery is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicles, and in particular to a longitudinal beam insulation cover, a power battery and a vehicle. Background Art

[0002] In the related art, the solution of insulating the longitudinal beam by spraying an insulating coating on the longitudinal beam has a complex spraying process, low spraying efficiency and high production cost. Moreover, when assembling the power battery, the longitudinal beam needs to be sprayed with an insulating coating first, and then the longitudinal beam is installed in the shell, and then the battery module is installed. During the installation of the longitudinal beam and the battery module, there is a risk that the insulating layer on the longitudinal beam will be damaged, resulting in failure of the insulation of the longitudinal beam, which leads to a safety hazard in the power battery. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a longitudinal beam insulation cover, a power battery and a vehicle.

[0004] The present application discloses a longitudinal beam insulation cover, comprising: a cover body, the cover body comprising an insulation top plate and two insulation side plates, the insulation top plate extends along a first direction; the two insulation side plates are connected to the same side of the insulation top plate in a third direction and are spaced apart in a second direction, the insulation top plate and the two insulation side plates jointly define an insulation protection groove; wherein the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

[0005] Optionally, a mounting avoidance hole is provided on the insulating top plate.

[0006] Optionally, the insulating top plate is provided with an annular convex rib on the radial outer side of the mounting avoidance hole, and the annular convex rib is located on a side of the insulating top plate away from the insulating protection groove.

[0007] Optionally, the longitudinal beam insulation cover further includes: a connecting piece, which is connected and fixed to the cover body and is used to connect and fix the cover body to the longitudinal beam.

[0008] Optionally, the connecting member includes: an adhesive layer, the adhesive layer is arranged in the insulating protection groove and connected to the insulating top plate; and / or the connecting member includes an insulating fastener.

[0009] Optionally, both ends of the insulating top plate in the second direction are connected to external suspension plates, one end of the external suspension plate in the second direction is connected to the insulating top plate, and the other end of the external suspension plate in the second direction protrudes out of the corresponding insulating side plate.

[0010] The present application also discloses a power battery, comprising: a battery cell module, wherein the battery cell modules are multiple, and each of the battery cell modules comprises at least one battery cell; a shell, wherein the shell has a storage space for accommodating the battery cell module, wherein at least one longitudinal beam is arranged in the storage space, and the longitudinal beam is used to separate two adjacent battery cell modules; and according to the longitudinal beam insulating cover provided in the above disclosure, the longitudinal beam insulating cover is arranged on the longitudinal beam.

[0011] Optionally, both ends of the insulating top plate in the second direction are connected to external suspension plates, one end of the external suspension plate in the second direction is connected to the insulating top plate, and the other end of the external suspension plate in the second direction protrudes out of the corresponding insulating side plate, the projection of the external suspension plate on the projection plane at least partially overlaps with the projection of the battery cell on the projection plane, and the projection plane is parallel to the insulating top plate.

[0012] Optionally, the power battery further includes: a water cooling plate, wherein the water cooling plate is arranged between the longitudinal beam and the battery cell module, and at least a portion of the insulating side plate is inserted between the longitudinal beam and the water cooling plate.

[0013] The present application also discloses a vehicle, comprising: a power battery provided according to the above disclosure.

[0014] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0015] According to the longitudinal beam insulation cover provided by the embodiment of the present disclosure, by providing a cover body with an insulation protection groove, the operator can more conveniently clamp the cover body on the longitudinal beam and insert the longitudinal beam into the insulation protection groove to achieve the purpose of insulating the longitudinal beam. The structure is simple and easy to install, which can improve the assembly efficiency and reduce the production cost of the power battery; moreover, in this way, the cover body can be installed on the longitudinal beam after the battery cell module of the power battery is assembled to the shell, so as to avoid the cover body from being damaged during the installation of the battery cell module, ensure the structural integrity of the cover body, so that the cover body can reliably insulate the longitudinal beam, improve the reliability of the longitudinal beam insulation cover, and improve the safety performance of the power battery.

[0016] According to the power battery provided by the embodiment of the present disclosure, by providing the above-mentioned longitudinal beam insulation cover, the longitudinal beam insulation cover can be installed after the battery cell module is assembled in place, thereby preventing the longitudinal beam insulation cover from being damaged during the installation process, ensuring the insulation effect of the longitudinal beam, and improving the safety performance of the power battery; moreover, this can make the overall assembly process of the power battery simpler, improve the production efficiency of the power battery, and reduce the production cost of the power battery.

[0017] According to the vehicle provided by the embodiment of the present disclosure, by setting the above-mentioned power battery, the power battery has high safety performance and low production cost, which can improve the safety performance of the vehicle, reduce the production cost of the vehicle, and improve the overall performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 An exploded view of a portion of the structure of a power battery according to some embodiments of the present disclosure;

[0021] Figure 2 A partial cross-sectional view of a power battery according to some embodiments of the present disclosure;

[0022] Figure 3 for Figure 1 Exploded view of the lower cover and the longitudinal beam insulation protection cover;

[0023] Figure 4 for Figure 1 A three-dimensional view of the longitudinal beam insulation protection cover.

[0024] Among them, 100, power battery;

[0025] 10. Longitudinal beam insulation cover;

[0026] 1. Cover body; 11. Insulation top plate; 111. Mounting avoidance hole; 12. Insulation side plate; 13. Insulation protection groove; 14. Annular convex rib; 15. External suspension plate;

[0027] 20. Battery cell module; 2. Battery cell;

[0028] 30. Shell; 3. Lower cover; 31. Accommodation slot; 32. Longitudinal beam; 321. Mounting point;

[0029] 40. Water cooling plate. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0032] Reference Figure 1-Figure 3 The power battery 100 includes a battery cell module 20, a shell 30 and a longitudinal beam insulating cover 10, there are multiple battery cell modules 20, each battery cell module 20 includes at least one battery cell 2; the shell 30 has a storage space for accommodating the battery cell module 20, and at least one longitudinal beam 32 is provided in the storage space, and the longitudinal beam 32 is used to separate two adjacent battery cell modules 20; for example, the shell 30 of the power battery 100 may include an upper cover and a lower cover 3, the lower cover 3 has a storage groove 31, the longitudinal beam 32 is provided in the storage groove 31, and the upper cover is provided at the opening of the storage groove 31 to define the storage space together with the lower cover 3.

[0033] For example, when there are two or more longitudinal beams 32 , the plurality of longitudinal beams 32 may be spaced apart from each other and arranged in parallel, and at least one of the plurality of longitudinal beams 32 may be arranged perpendicular to the other longitudinal beams 32 .

[0034] Reference Figure 1-Figure 4 The present application discloses a longitudinal beam insulating cover 10, which can be applied to a power battery 100. The longitudinal beam insulating cover 10 includes: a cover body 1, the cover body 1 includes an insulating top plate 11 and two insulating side plates 12, the insulating top plate 11 extends along a first direction (refer to e1 in the accompanying drawings), for example, the first direction can be the length direction of the battery pack, when the battery pack is placed on the vehicle body, the first direction can be the length direction of the vehicle.

[0035] Both insulating side plates 12 are connected to the same side of the insulating top plate 11 in the third direction (refer to e3 in the accompanying drawing). For example, the third direction can be the height direction of the battery pack. When the battery package is placed on the vehicle body, the first direction can be the height direction of the vehicle.

[0036] The two insulating side plates 12 are spaced apart in the second direction (refer to e2 in the figure), and the insulating top plate 11 and the two insulating side plates 12 jointly define an insulating protection groove 13. For example, the second direction may be the width direction of the battery pack, and when the battery pack is placed on the vehicle body, the first direction may be the width direction of the vehicle.

[0037] The insulating protection groove 13 can be used to accommodate the longitudinal beam 32, and the insulating side plate 12 is used to separate the longitudinal beam 32 of the power battery 100 from the battery cell module 20 to insulate the longitudinal beam 32; for example, the cover body 1 can be a plastic part, a nylon part or a rubber part. The first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

[0038] When insulating the longitudinal beam 32, the insulating protection groove 13 of the cover body 1 can be aligned with the longitudinal beam 32 first, and then the cover body 1 can be moved relative to the longitudinal beam 32 to insert the longitudinal beam 32 into the insulating protection groove 13. When the cover body 1 is stuck on the longitudinal beam 32, the insulating side plate 12 can be inserted into the gap between the longitudinal beam 32 and its adjacent battery cell module 20 to separate the longitudinal beam 32 from its adjacent battery cell module 20, so as to achieve the purpose of insulating and protecting the longitudinal beam 32.

[0039] By providing the cover body 1 with the insulating protection groove 13, the operator can more conveniently clamp the cover body 1 on the longitudinal beam 32 and insert the longitudinal beam 32 into the insulating protection groove 13 to achieve the purpose of insulating the longitudinal beam 32. The structure is simple and easy to install, which can improve the assembly efficiency and reduce the production cost of the power battery 100; moreover, in this way, the cover body 1 can be installed on the longitudinal beam 32 after the battery module 20 of the power battery 100 is assembled to the shell 30, so as to avoid the cover body 1 from being damaged during the installation of the battery module 20, ensure the structural integrity of the cover body 1, so that the cover body 1 can reliably insulate the longitudinal beam 32, improve the reliability of the longitudinal beam insulation cover 10, and improve the safety performance of the power battery 100.

[0040] For example, refer to Figure 1 and Figure 2 The power battery 100 may further include a water cooling plate 40, which is disposed between the longitudinal beam 32 and the battery cell module 20. When the power battery 100 is working, the battery cell module 20 may transfer heat to the water cooling plate 40, which circulates heat to reduce the temperature of the battery cell module 20, prevent heat accumulation in the battery cell module 20 and cause overheating and damage to the battery cell module 20, thereby improving the reliability of the power battery 100.

[0041] For example, refer to Figure 1 and Figure 2 The insulating side plate 12 is inserted between the longitudinal beam 32 and the water-cooling plate 40. The cover body 1 can be a high-temperature resistant part. For example, the high-temperature resistant temperature of the cover body 1 is greater than or equal to 120 degrees. When the power battery 100 is working, part of the heat generated by the battery module 20 can be transferred to the insulating side plate 12 through the water-cooling plate 40. Setting the cover body 1 as a high-temperature resistant part can prevent the cover body 1 from being deformed by heat, ensure the structural integrity of the cover body 1, and enable the cover body 1 to reliably insulate the longitudinal beam 32, thereby improving the reliability of the longitudinal beam insulation cover 10.

[0042] Reference Figure 4According to some embodiments provided by the present disclosure, a mounting avoidance hole 111 is provided on the insulating top plate 11. For example, the mounting avoidance hole 111 can be used to avoid the mounting point 321 of the longitudinal beam 32. Specifically, the mounting point 321 can be a connection point between the upper cover and the longitudinal beam 32, or the mounting point 321 can be a connection point for connecting the vehicle frame and the longitudinal beam 32. By providing the mounting avoidance hole 111 at the avoidance point, it is possible to prevent the cover body 1 from affecting the assembly of the power battery 100, and to prevent the cover body 1 from affecting the installation between the power battery 100 and the vehicle frame.

[0043] Reference Figure 2 and 4 According to some embodiments provided by the present disclosure, an annular convex rib 14 is provided on the insulating top plate 11, and the annular convex rib 14 is provided on the radially outer side of the mounting avoidance hole 111, and the annular convex rib 14 is located on the side of the insulating top plate 11 away from the insulating protection groove 13. Under the condition that at least one battery cell 2 fails in insulation and sprays battery cell spray (for example, the spray may include electrolyte) outward, when the battery cell spray is sprayed onto the insulating top plate 11, the annular convex rib 14 can prevent the battery cell spray from flowing from the mounting avoidance hole 111 to the longitudinal beam 32 and causing insulation failure of the longitudinal beam 32, and can effectively prevent the battery cell spray from splashing onto the adjacent battery cell module 20 and causing the battery cell 2 in the adjacent battery cell module 20 to fail, effectively preventing the spread of the insulation failure of the battery cell 2, reducing the number of failed battery cells 2, and reducing the maintenance cost of the power battery 100.

[0044] Reference Figure 2 and 4 According to some embodiments provided by the present disclosure, the two ends of the insulating top plate 11 in the second direction are connected to the external suspension plate 15, one end of the external suspension plate 15 in the second direction is connected to the insulating top plate 11, and the other end of the external suspension plate 15 in the second direction protrudes out of the corresponding insulating side plate 12. For example, the external suspension plate 15 is parallel to the insulating top plate 11.

[0045] By setting the external suspension plate 15, the external suspension plate 15 can block the gap between the insulating side plate 12 and the battery cell module 20. Under the condition that the insulation of at least one battery cell 2 fails and the battery cell spray is sprayed outward, the external suspension plate 15 can hinder the flow of the battery cell spray toward the gap between the insulating side plate 12 and the battery cell module 20, reduce the amount of the battery cell spray flowing through the gap between the insulating side plate 12 and the battery cell module 20 to the water cooling plate 40, or avoid the battery cell spray from flowing through the gap between the insulating side plate 12 and the battery cell module 20 to the water cooling plate 40, effectively reducing the risk of the insulating coating on the water cooling plate 40 being damaged, improving the insulation reliability of the water cooling plate 40, and improving the reliability of the power battery 100.

[0046] For example, refer to Figure 2In some embodiments provided by the present disclosure, the projection of the external hanging plate 15 on the projection plane at least partially overlaps with the projection of the battery cell 2 on the projection plane, and the projection plane is parallel to the insulating top plate 11. The external hanging plate 15 can more reliably block the flow of the battery cell spray toward the gap between the insulating side plate 12 and the battery cell module 20, thereby further reducing the risk of the insulating coating on the water cooling plate 40 being damaged, improving the insulation reliability of the water cooling plate 40, and improving the reliability of the power battery 100.

[0047] For example, refer to Figure 2 In some optional embodiments provided by the present disclosure, the outer suspension plate 15 abuts against the surface of the battery cell 2 in the third direction. This can reliably and effectively prevent the flow of the battery cell spray toward the gap between the insulating side plate 12 and the battery cell module 20, reduce the risk of damage to the insulating coating on the water cooling plate 40, improve the insulation reliability of the water cooling plate 40, and improve the reliability of the power battery 100.

[0048] For example, refer to Figure 2 In some optional embodiments provided by the present disclosure, the outer suspension plate 15 is spaced apart from the surface of the battery cell 2 in the third direction, and the distance between the outer suspension plate 15 and the surface of the battery cell 2 in the third direction is not greater than 4 mm. Optionally, the distance between the outer suspension plate 15 and the surface of the battery cell 2 in the third direction may be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm.

[0049] By spacing the outer hanging plate 15 from the surface of the battery cell 2 in the third direction, it is possible to avoid the outer hanging plate 15 squeezing the battery cell 2, prevent the battery cell 2 from being deformed under pressure and causing failure, ensure the reliability of the battery cell 2, and ensure the reliability of the power battery 100. Moreover, in this way, a flow-blocking gap can be formed between the outer hanging plate 15 and the surface of the battery cell 2, and when the battery cell spray flows into the flow-blocking gap, it can be cooled in the flow-blocking gap, thereby blocking the flow-blocking gap, reducing the amount of battery cell spray flowing to the cold plate through the flow-blocking gap, or preventing the battery cell spray from flowing to the water-cooling plate 40 through the flow-blocking gap, further reducing the risk of the insulating coating on the water-cooling plate 40 being damaged, improving the insulation reliability of the water-cooling plate 40, and improving the reliability of the power battery 100.

[0050] According to some embodiments provided by the present disclosure, the longitudinal beam insulation cover 10 further includes: a connector, which is connected and fixed to the cover body 1, and the connector is used to connect and fix the cover body 1 to the longitudinal beam 32. In this way, the cover body 1 can be prevented from shaking relative to the longitudinal beam 32, so that the cover body 1 can reliably insulate and protect the longitudinal beam 32, thereby improving the reliability of the longitudinal beam insulation cover 10.

[0051] According to some embodiments provided by the present disclosure, the connector includes: an adhesive layer, the adhesive layer is disposed in the insulation protection groove 13, and the adhesive layer is connected to the insulation top plate 11; for example, the adhesive layer can be a double-sided adhesive, or the adhesive layer can be a structural adhesive. When installing the longitudinal beam insulation cover 10, the adhesive layer can be first connected to the insulation top plate 11, and then the cover body 1 can be clamped on the longitudinal beam 32, and then the cover body 1 can be pressed to fully contact the adhesive layer with the longitudinal beam 32. The structure is simple and easy to install, which can improve the installation efficiency of the longitudinal beam insulation cover 10 and the installation efficiency of the power battery 100.

[0052] For example, the ratio of the length of the adhesive layer in the first direction to the length of the insulating top plate 11 in the first direction is not less than 0.3 and not more than 0.7. Optionally, the ratio of the length of the adhesive layer in the first direction to the length of the insulating top plate 11 in the first direction can be 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7. In this way, the use amount of the adhesive layer can be reduced while ensuring the connection strength between the longitudinal beam 32 and the cover body 1, thereby reducing the production cost of the longitudinal beam insulating cover 10.

[0053] According to some embodiments provided by the present disclosure, the connecting piece includes an insulating fastener. For example, the insulating fastener may be a plastic rivet or a wood screw. This can improve the connection strength between the cover body 1 and the longitudinal beam 32, so that the cover body 1 is reliably fixed relative to the longitudinal beam 32, so that the cover body 1 can more reliably insulate and protect the longitudinal beam 32, and improve the reliability of the longitudinal beam insulation cover 10.

[0054] Reference Figure 1 and Figure 2 The present application also discloses a power battery 100, comprising: a battery cell module 20, a shell 30 and a longitudinal beam insulation cover 10, wherein there are multiple battery cell modules 20, and each battery cell module 20 comprises at least one battery cell 2; the shell 30 has an accommodating space for accommodating the battery cell module 20, and at least one longitudinal beam 32 is arranged in the accommodating space, and the longitudinal beam 32 is used to separate two adjacent battery cell modules 20; the longitudinal beam insulation cover 10 is the longitudinal beam insulation cover 10 provided according to the above disclosure, and the longitudinal beam insulation cover 10 is arranged on the longitudinal beam 32.

[0055] According to the power battery 100 provided by the embodiment of the present disclosure, by providing the above-mentioned longitudinal beam insulation cover 10, the longitudinal beam insulation cover 10 can be installed after the battery cell module 20 is assembled in place, thereby preventing the longitudinal beam insulation cover 10 from being damaged during the installation process, ensuring the insulation effect of the longitudinal beam 32, and improving the safety performance of the power battery 100; moreover, this can make the overall assembly process of the power battery 100 simpler, improve the production efficiency of the power battery 100, and reduce the production cost of the power battery 100.

[0056] Reference Figure 2According to some embodiments provided by the present disclosure, the power battery 100 further includes: a water-cooling plate 40, which is disposed between the longitudinal beam 32 and the battery cell module 20, and at least a portion of the insulating side plate 12 is inserted between the longitudinal beam 32 and the water-cooling plate 40. When the battery cell spray flows from the gap between the insulating side plate 12 and the battery cell module 20 to the water-cooling plate 40, since the insulating side plate 12 is inserted between the water-cooling plate 40 and the longitudinal beam 32, the gap between the insulating side plate 12 and the water-cooling plate 40 can be made smaller, which can effectively prevent the battery cell spray from flowing through the gap between the insulating side plate 12 and the water-cooling plate 40 to the longitudinal beam 32 and causing the insulation failure of the longitudinal beam 32, thereby reliably and effectively preventing the spread of the insulation failure of the battery cell 2, reducing the number of failed battery cells 2, and reducing the maintenance cost of the power battery 100.

[0057] For example, the ratio of the depth of the insulating protection groove 13 in the third direction to the height of the longitudinal beam 32 in the third direction is not less than 0.2 and not more than 0.7. Optionally, the ratio of the depth of the insulating protection groove 13 in the third direction to the height of the longitudinal beam 32 in the third direction can be 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7. By inserting at least part of the insulating side plate 12 between the longitudinal beam 32 and the water-cooled plate 40, the water-cooled plate 40 can be used to form insulation protection for the longitudinal beam 32, ensuring the reliability of the insulation of the longitudinal beam 32, so that the size of the insulating side plate 12 in the third direction is set smaller, reducing the material used for the insulating side plate 12, and reducing the production cost of the longitudinal beam insulation cover 10.

[0058] The present application also discloses a vehicle, comprising: a power battery 100 provided according to the above disclosure. For example, the vehicle may be a car.

[0059] According to the vehicle provided by the embodiment of the present disclosure, by setting the above-mentioned power battery 100, the power battery 100 has high safety performance and low production cost, which can improve the safety performance of the vehicle, reduce the production cost of the vehicle, and improve the overall performance of the vehicle.

[0060] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A longitudinal beam insulation cover, characterized in that: include: A cover body, the cover body comprising an insulating top plate and two insulating side plates, the insulating top plate extending along a first direction; the two insulating side plates are both connected to the same side of the insulating top plate in a third direction and are spaced apart in a second direction, the insulating top plate and the two insulating side plates jointly define an insulating protection groove; The first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

2. The longitudinal beam insulation cover according to claim 1, characterized in that: The insulating top plate is provided with a mounting avoidance hole.

3. The longitudinal beam insulation cover according to claim 2, characterized in that: The insulating top plate is provided with an annular convex rib on the radial outer side of the mounting avoidance hole, and the annular convex rib is located on a side of the insulating top plate away from the insulating protection groove.

4. The longitudinal beam insulation cover according to claim 1, characterized in that: Also includes: A connecting piece is connected and fixed to the cover body and is used to connect and fix the cover body to the longitudinal beam.

5. The longitudinal beam insulation cover according to claim 4, characterized in that: The connecting member comprises: an adhesive layer, the adhesive layer is arranged in the insulating protection groove and connected to the insulating top plate; And / or, the connector includes an insulating fastener.

6. The longitudinal beam insulation cover according to any one of claims 1 to 5, characterized in that: Both ends of the insulating top plate in the second direction are connected to external suspension plates, one end of the external suspension plate in the second direction is connected to the insulating top plate, and the other end of the external suspension plate in the second direction protrudes out of the corresponding insulating side plate.

7. A power battery, characterized in that: include: A battery cell module, wherein there are multiple battery cell modules, and each of the battery cell modules includes at least one battery cell; A shell, wherein the shell has a storage space for accommodating the battery module, and at least one longitudinal beam is provided in the storage space, and the longitudinal beam is used to separate two adjacent battery modules; According to any one of claims 1 to 6, the longitudinal beam insulation cover is provided on the longitudinal beam.

8. The power battery according to claim 7, characterized in that: Both ends of the insulating top plate in the second direction are connected to external suspension plates, one end of the external suspension plate in the second direction is connected to the insulating top plate, and the other end of the external suspension plate in the second direction protrudes out of the corresponding insulating side plate, the projection of the external suspension plate on the projection plane at least partially overlaps with the projection of the battery cell on the projection plane, and the projection plane is parallel to the insulating top plate.

9. The power battery according to claim 7, characterized in that: Also includes: A water cooling plate is provided between the longitudinal beam and the battery core module, and at least a portion of the insulating side plate is inserted between the longitudinal beam and the water cooling plate.

10. A vehicle, characterized in that: include: A power battery according to any one of claims 7 to 9.

Images