Connecting support and battery pack

Abstract

The utility model relates to a connecting support and a battery pack, and relates to the technical field of power batteries. The connecting support is provided with the containing cavity, and the bar pieces and the connecting bars are connected into the containing cavity. The connecting support comprises an insulating base body and an extension assembly. The insulating base body comprises an insulating bottom plate and at least two insulating side plates, and a containing cavity is defined by the insulating side plates and the insulating bottom plate. The extension assembly is arranged on a creepage path corresponding to the creepage distance between the bar piece and other conductive pieces, and the extension assembly is used for increasing the creepage distance. Wherein the extension assembly extends through the insulating seat body and is formed at the edge of the opening of the accommodating cavity, and an angle is formed between the extension direction of the extension assembly and the arrangement direction of the part to be extended in the insulating seat body. The connecting support can solve the problem of insufficient creepage distance between the battery piece and the cross beam and other components in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular, to a connection support and a battery pack. Background Art

[0002] In the prior art, a high-voltage connection support is provided between the output tab of the battery cell and the connection copper sheet in the power battery. When the high-voltage connection support is installed, an insulating cloth is generally pasted on the cross beam where the high-voltage support is installed for covering, and then the high-voltage support is installed to ensure the safety protection between the output tab high-voltage component and the cross beam and the box body of the connection.

[0003] However, for the cross beam at the installation position with a high degree of integration in the Cell To Pack (CTP) or Cell To Body (CTB) solution of the battery pack without modules, multiple groups of high-voltage brackets need to be integrated in parallel, and multiple groups of functional components, reinforcing ribs, connection holes, cooling pipelines and other components need to be installed. Too many features make the process of covering the cross beam surface with insulating cloth more complex and the difficulty greatly increased.

[0004] Meanwhile, in the above solution, the space of the electrical compartment of the power battery is more compact, resulting in the creepage distance requirement of the high-voltage platform not being met. Summary of the Utility Model

[0005] The purpose of the present application is to provide a connection support and a battery pack, and the connection support can solve the problem of insufficient creepage distance between the battery tab and components such as the cross beam in the prior art.

[0006] To achieve the above purpose, according to the first aspect of the present application, an embodiment of the present application provides a connection support. The connection support has a receiving cavity, and a tab and a connection row are connected in the receiving cavity. The connection support includes an insulating seat body and an extension component. The insulating seat body includes an insulating bottom plate and at least two insulating side plates. The insulating side plates are connected to the edge position of the insulating bottom plate, and an accommodating cavity is formed between the insulating side plates and the insulating bottom plate. The extension component is connected to the insulating seat body, and the extension component is arranged on the creepage path corresponding to the creepage distance between the tab and other conductive components. The extension component is used to increase the creepage distance. Among them, the extension component extends through the insulating seat body and is formed at the edge of the opening of the receiving cavity, and the extension direction of the extension component is arranged at an angle with the setting direction of the part to be extended in the insulating seat body.

[0007] Based on the above embodiments of the present application, the accommodating cavity formed by the connecting support is used to accommodate the connecting ends of the bus bar and the connecting row, and the connecting ends of the two are connected and conducted in the accommodating cavity. By further providing an extension assembly at the edge position of the insulating seat body, the creepage distance from the inside of the accommodating cavity to the outside is extended through the setting of the extension assembly, that is, the creepage distance from the connection position of the bus bar and the connecting row to other conductive components is extended. At the same time, by setting the extension direction of the extension assembly at an angle to the direction to be extended of the insulating seat body, the volume of the connecting support can be minimized while extending the creepage distance, so that the above connecting support structure can be applied to the compact power battery electrical compartment environment, and thus meet the creepage distance requirements of the high-voltage platform.

[0008] In some embodiments, the extension assembly includes a first extension plate and a second extension plate. The first extension plate is formed at the edge of the insulating side plate, the second extension plate is formed at the edge of the insulating bottom plate, and the first extension plate is arranged at an angle to the insulating side plate, and the second extension plate is arranged at an angle to the insulating bottom plate.

[0009] Based on the above embodiments of the present application, by specifically setting the extension assembly as the first extension plate and the second extension plate, the first extension plate and the second extension plate cooperate to extend the entire edge of the accommodating cavity in the insulating seat body, thereby further improving the insulation protection effect. And both the first extension plate and the second extension plate are arranged at an angle to the part of the insulating seat body they are connected to, thereby reducing the volume of the connecting support.

[0010] In some embodiments, a first reinforcing rib is provided at the connection between the first extension plate and the insulating side plate; and / or, a second reinforcing rib is provided at the edge of the second extension plate.

[0011] Based on the above embodiments of the present application, through the setting of the first reinforcing rib and the second reinforcing rib, the connection position between the insulating seat body and the extension assembly can be strengthened to improve the overall strength of the connecting support.

[0012] In some embodiments, the extension direction of the first reinforcing rib is arranged at an angle to the extension direction of the first extension plate, and the extension direction of the second reinforcing rib is arranged at an angle to the extension direction of the second extension plate.

[0013] Based on the above embodiments of the present application, through the above setting, the first reinforcing rib and the second reinforcing rib can further extend the creepage distance between the bus bar and the connecting row in the accommodating cavity to external conductive components, thereby further improving the insulation protection effect.

[0014] In some embodiments, the connecting support is mounted on the fixed beam. An installation cavity is formed on the fixed beam, and the connecting support is disposed within the installation cavity. A first safety gap is provided between the first extension plate and the fixed beam, and the width of the first safety gap is H1, where H1 > 1 mm. A second safety gap is provided between the second extension plate and the fixed beam, and the width of the second safety gap is H2, where H2 > 1 mm.

[0015] Based on the above embodiments of the present application, by limiting the widths of the first safety gap and the second safety gap, it is ensured that there is sufficient electrical clearance between the connecting support and the fixed beam to meet the insulation requirements, thereby maximizing the electrical clearance requirements between the connecting support and other surrounding components within a limited space.

[0016] In some embodiments, the connecting support is embedded in the installation cavity, and the upper surface of the connecting support is lower than the upper end surface of the installation cavity.

[0017] Based on the above embodiments of the present application, by setting the upper surface of the connecting support to be lower than the upper surface of the fixed beam where the installation cavity is located, that is, the connecting support is completely embedded in the installation cavity when it is set. Through this setting, on the one hand, when the connecting support is completely embedded in the installation cavity, it can reduce the occupation of the electrical compartment space in the power battery by the connecting support and the fixed beam as a whole. On the other hand, it makes the fixed beam as a whole relatively flat, facilitating the subsequent fitting and fixing of the fixed beam with structures such as the cold plate or the bottom guard plate. Further, through the above setting, it is ensured that there is sufficient distance between the structures such as the bus bar and the connection row disposed within the connecting support and the components above the fixed beam, thereby further meeting the creepage distance requirements of the battery pack and protecting the components above the fixed beam.

[0018] In some embodiments, a connection nut is embedded in the insulating bottom plate, and a connection bolt passes through the bus bar and the connection row and is threadedly connected to the connection nut.

[0019] Based on the above embodiments of the present application, the bus bar and the connection row are connected and electrically conducted by setting the connection nut and the connection bolt.

[0020] In some embodiments, a connection post is formed by the downward depression of the insulating bottom plate, the connection nut is embedded in the connection post, and a third reinforcing rib is provided between the connection post and the second extension plate.

[0021] Based on the above embodiments of the present application, the stability of the connection bolt and the connection nut for fixing the bus bar and the connection row is increased by the connection post formed by the downward depression. The setting of the third reinforcing rib between the connection post and the second extension plate enables mutual support between the connection post and the second extension plate, especially the support of the connection post for the second extension plate, making the second extension plate stronger and more stable in structure.

[0022] In some embodiments, a relief groove is formed on the fixed beam. The relief groove is used to avoid the connecting column, and the relief groove communicates with the installation cavity. The distance between the third reinforcing rib and the connecting column to the fixed beam is H3, and H3 > 3 mm.

[0023] Based on the above embodiments of the present application, the installation of the entire connecting support can be facilitated through the setting of the relief groove. By restricting the distance between the third reinforcing rib and the connecting column to the fixed beam, that is, restricting the distance between the third reinforcing rib and the connecting column to the edge of the installation cavity or the relief groove, the creepage distance and electrical clearance from each conductive structure in the connecting support to the fixed beam can be further ensured to meet the insulation requirements, thereby improving the overall safety.

[0024] According to the second aspect of the present application, a battery pack is provided. The battery pack includes a battery cell module, a frame body, and the above-mentioned connecting support. The battery cell module is arranged in the frame body, and the connecting support is arranged at the end of the battery cell module.

[0025] Based on the above embodiments of the present application, the battery pack provided by the present application includes the above-mentioned connecting support. Through the setting of the above-mentioned connecting support, the creepage distance at the connection position of the tab and the connecting row is extended, thereby further improving the insulation protection effect at the connection position of the tab and the connecting row, and further improving the insulation effect of the battery pack.

[0026] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present application, but do not constitute a limitation to the present application. In the drawings:

[0028] Figure 1 is a schematic structural diagram of the battery pack provided by the embodiment of the present application.

[0029] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0030] Figure 3 is a schematic structural diagram of the connecting support provided by the embodiment of the present application.

[0031] Figure 4 is another schematic structural diagram of the connecting support provided by the embodiment of the present application.

[0032] Figure 5 is a schematic structural diagram of the fixed beam provided by the embodiment of the present application.

[0033] Figure 6 is a schematic structural diagram of the connecting support and the fixed beam provided by the embodiment of the present application.

[0034] Figure 7 It is a schematic plan view of the connection support and the fixed beam provided by the embodiment of the present application.

[0035] Figure 8 It is Figure 7 a schematic cross-sectional view in the B-B direction in

[0036] Description of the reference numerals

[0037] 1. Barium piece; 2. Connection row; 3. Insulating seat body; 31. Insulating bottom plate; 32. Insulating side plate; 33. Accommodating cavity; 34. Connection nut; 35. Connection bolt; 36. Connection column; 37. Third reinforcing rib; 4. Extension assembly; 41. First extension plate; 42. Second extension plate; 43. First reinforcing rib; 44. Second reinforcing rib; 5. Fixed beam; 51. Installation cavity; 52. Avoidance groove; 6. Battery cell module; 7. Frame. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the detailed description of the embodiments of the present application provided in the accompanying drawings below is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0041] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] In the description of the present application, it should be noted that, unless otherwise stated, the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0043] In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In the prior art, the fast charging technology of new energy vehicles has gradually become one of the standard configurations of vehicles. In the related technologies, fast charging is mainly achieved through two paths: high current and high voltage. Among them, the high current route has a higher complexity, so high voltage fast charging will be the future mainstream. For example, various new energy vehicle manufacturers are gradually promoting the 800V high voltage platform technology. In the high voltage platform technology, a high voltage connection support is provided at the connection end of high voltage output components such as busbars. When specifically setting it, it is generally adopted to paste an insulating cloth on the crossbeam where the high voltage support is installed for covering, and then install the high voltage support to ensure the safety protection between the connected high voltage components and the battery box body.

[0045] However, for the crossbeam at the installation position with a higher integration degree in the case of a cell-to-pack (CTP) or cell-to-body (CTB) solution, multiple groups of high voltage brackets need to be integrated in parallel, and multiple groups of functional components, reinforcing ribs, connection holes, cooling pipelines and other components need to be installed. Too many features make the process of covering the crossbeam surface with an insulating cloth more complex and the difficulty greatly increased. Further, in the above solutions, it is difficult to ensure the creepage distance requirements between the installation crossbeam and each high voltage component in the battery module with a higher integration degree and the more compact electrical compartment space in the battery module.

[0046] Specifically, under the design platform requirements of current passenger vehicles at 800V or even higher voltages, in order to meet the GB / T16935.1 or the higher UL2580 standard, the creepage distances to meet the minimum electrical safety need to reach more than 12.5mm or more than 19.1mm respectively, and it is difficult to ensure sufficient design space in the compact electrical compartment module.

[0047] To solve the above technical problems in the prior art, referring to Figures 1 to 3 as shown in, according to the first aspect of the present application, an embodiment of the present application provides a connection support. The connection support has a receiving cavity 33, and the bus bar 1 and the connection row 2 are connected in the receiving cavity 33. The connection support includes an insulating seat body 3 and an extension assembly 4. The insulating seat body 3 includes an insulating bottom plate 31 and at least two insulating side plates 32. The insulating side plates 32 are connected to the edge position of the insulating bottom plate 31, and a receiving cavity 33 is formed between the insulating side plates 32 and the insulating bottom plate 31. The extension assembly 4 is connected to the insulating seat body 3, and the extension assembly 4 is arranged on the creepage path corresponding to the creepage distance between the bus bar 1 and other conductive parts. The extension assembly 4 is used to increase the creepage distance. Wherein, the extension assembly 4 extends through the insulating seat body 3 and is formed at the edge of the opening of the receiving cavity 33, and the extending direction of the extension assembly 4 is arranged at an angle with the setting direction of the part to be extended in the insulating seat body 3.

[0048] Based on the above embodiments of the present application, the receiving cavity 33 formed by the connection support is used to accommodate the connection ends of the bus bar 1 and the connection row 2, and the connection ends of the two are connected and conducted in the receiving cavity 33. By further arranging the extension assembly 4 at the edge position of the insulating seat body 3, the distance from the inside of the receiving cavity 33 to the outside is extended through the arrangement of the extension assembly 4, that is, the creepage distance from the connection position of the bus bar 1 and the connection row 2 to other components is extended. At the same time, by arranging the extension assembly 4 at an angle with the insulating seat body 3, the volume of the connection support can be minimized while extending the creepage distance, so that the above connection support structure can be applied to a compact power battery electrical compartment environment, thereby meeting the creepage distance requirements of the high-voltage platform.

[0049] Specifically, when the power battery is connected and assembled, first, a plurality of battery cells are grouped to form a battery cell module 6. At this time, adjacent two battery cells are connected and conducted through the bus bar 1. At the same time, between adjacent two battery cell modules 6, first, the bus bar 1 is led outwards, and then the connection row 2 is arranged between the bus bars 1 to complete the connection and conduction. During this process, a connection support is arranged at the connection position of the bus bar 1 and the connection row 2 for insulation protection.

[0050] Further, in the present application, the specific structure of the insulating seat body 3 can be set in any suitable way. Referring to Figure 3 and Figure 4 as shown in, in an exemplary embodiment provided by the present application, the insulating seat body 3 includes an insulating bottom plate 31 and three insulating side plates 32. The three insulating side plates 32 cooperate with the insulating bottom plate 31 to enclose a chair-shaped structure, that is, at this time, the side part and the top of the receiving cavity 33 are both open.

[0051] Alternatively, in some other embodiments of the present application, the insulating base 3 may further include an insulating base plate 31 and four insulating side plates 32. At this time, the four insulating side plates 32 cooperate with the insulating base plate 31 to form a receiving cavity 33 with an open top. At this time, the receiving cavity 33 has a better protective effect on the bus bar 1 and the connecting row 2, and can effectively extend the creepage distance from the connection position of the two to the external conductive element. However, at the same time, the structures of the bus bar 1 and the connecting row 2 also need to be correspondingly adjusted, and the connection difficulty when connecting the two in the receiving cavity 33 is also increased accordingly.

[0052] In summary, the specific structure of the insulating base 3 can be selected according to the structures of the bus bar 1 and the connecting row 2 and the spatial arrangement of the connection position between the two. The present application does not make specific restrictions on this.

[0053] In the present application, the extension assembly 4 can be set to any structure that meets the creepage distance requirements.

[0054] Refer to Figure 3 and Figure 4 As shown in

[0055] Based on the above embodiments of the present application, further refer to Figure 3 and Figure 4 In

[0056] At this time, the setting of the first extension plate 41 is mainly used to extend the creepage distance from the connection position of the bus bar 1 and the connecting row 2 from the side of the connection support to the fixed beam 5.

[0057] Specifically, in the prior art, the creepage path from the connection position of the bus bar 1 and the connecting row 2 through the side of the connection support to the fixed beam 5 is successively from the inner wall of the insulating side plate 32 to the side end face of the insulating side plate 32 and then to the outer wall of the insulating side plate 32, and finally reaches the fixed beam 5.

[0058] After the first extension plate 41 is provided, the creepage path from the connection position between the bus bar 1 and the connection row 2 to the fixed beam 5 via the side of the connection support changes to reach the outer wall surface of the first extension plate 41 from the inner wall of the insulating side plate 32, then to the inner wall surface of the first extension plate 41 via the end face of the first extension plate 41, and then to the fixed beam 5 via the outer wall of the insulating side plate 32. Thus, the creepage distance from the connection end of the bus bar 1 and the connection row 2 to the fixed beam 5 via the side of the connection support is effectively extended.

[0059] The setting of the second extension plate 42 is mainly used to extend the creepage distance between the connection position of the bus bar 1 and the connection row 2 from the front of the connection support to the fixed beam 5.

[0060] Specifically, in the prior art, the creepage path from the connection position of the bus bar 1 and the connection row 2 to the fixed beam 5 via the front of the connection support is successively from the inner wall of the insulating bottom plate 31 to the front end face of the insulating bottom plate 31 and then to the outer wall of the insulating bottom plate 31, and finally reaches the fixed beam 5.

[0061] After the second extension plate 42 is provided, the creepage path changes to reach the inner wall surface of the second extension plate 42 from the inner wall of the insulating bottom plate 31, then to the outer wall surface of the second extension plate 42 via the end face of the second extension plate 42, and then to the fixed beam 5 via the outer wall of the insulating bottom plate 31. Thus, the creepage distance from the connection end of the bus bar 1 and the connection row 2 to the fixed beam 5 via the front of the connection support is effectively extended.

[0062] In summary, it can be seen that the cooperation of the first extension plate 41 and the second extension plate 42 extends the edge of the insulating seat body 3 to extend the creepage distance. By arranging the first extension plate 41 and the second extension plate 42 at an angle with the corresponding edge of the insulating seat body 3 respectively, while extending the creepage distance, the occupation of the internal space of the battery pack by the connection support is minimized.

[0063] In addition, it should be noted that the "the first extension plate 41 is arranged at an angle with the insulating side plate 32" and "the second extension plate 42 is arranged at an angle with the insulating bottom plate 31" referred to in this application mean the situation where an included angle is formed between two corresponding connected plate-like structures when regarded as two planes ignoring the thickness.

[0064] Refer to Figure 3 As shown in, in some embodiments of this application, a first reinforcing rib 43 is provided at the connection between the first extension plate 41 and the insulating side plate 32. And / or, a second reinforcing rib 44 is provided at the edge of the second extension plate 42.

[0065] Based on the above embodiments of this application, through the settings of the first reinforcing rib 43 and the second reinforcing rib 44, the connection position between the insulating seat body 3 and the extension assembly 4 can be strengthened to improve the overall strength of the connection support.

[0066] Further, in some embodiments of the present application, the extending direction of the first reinforcing rib 43 is set at an angle to the extending direction of the first extending plate 41, and the extending direction of the second reinforcing rib 44 is set at an angle to the extending direction of the second extending plate 42.

[0067] Based on the above embodiments of the present application, through the above settings, the first reinforcing rib 43 and the second reinforcing rib 44 can further extend the creepage distance between the bar piece 1 and the connection row 2 in the accommodating cavity 33 to the external components, thereby further improving the insulation protection effect.

[0068] Specifically, after the first reinforcing rib 43 is provided, the creepage path of the connection position between the bar piece 1 and the connection row 2 from the side of the connection support to the fixed beam 5 is changed to: from the inner wall of the insulating side plate 32 to the outer wall surface of the first extending plate 41, then through the inner wall surface of the first reinforcing rib 43 to the end surface of the first reinforcing rib 43, and then through the outer wall surface of the first reinforcing rib 43 to the end surface of the first extending plate 41 and then to the inner wall surface of the first extending plate 41, and then through the outer wall of the insulating side plate 32 to the fixed beam 5.

[0069] When the second reinforcing rib 44 is provided, the creepage path of the connection position between the bar piece 1 and the connection row 2 from the front of the connection support to the fixed beam 5 is changed to: from the inner wall of the insulating bottom plate 31 to the inner wall surface of the second extending plate 42, then through the inner wall surface of the second reinforcing rib 44 to the end surface of the second reinforcing rib 44, and then through the outer wall surface of the second reinforcing rib 44 to the end surface of the second extending plate 42, and then to the outer wall surface of the second extending plate 42, and through the outer wall of the insulating bottom plate 31 to the fixed beam 5.

[0070] In summary, through the setting of the first reinforcing rib 43 and the second reinforcing rib 44, the creepage distance can be further extended, and the insulation protection effect of the connection support can be improved.

[0071] Reference Figure 5 As shown in [reference], in an embodiment provided by the present application, the connection support is installed on the fixed beam 5, and an installation cavity 51 is opened on the fixed beam 5, and the connection support is arranged in the installation cavity 51.

[0072] Based on the above embodiments of the present application, by opening the installation cavity 51 on the fixed beam 5 to accommodate the connection support, it is convenient for the fixation and installation of the connection support, and at the same time, the overall occupation of the electrical compartment space in the battery pack by the connection support and the fixed beam 5 can be reduced.

[0073] Further, as shown in [reference] Figure 6 In some embodiments of the present application, a first safety gap is provided between the first extending plate 41 and the fixed beam 5, the width of the first safety gap is H1, and H1 > 1 mm. A second safety gap is provided between the second extending plate 42 and the fixed beam 5, the width of the second safety gap is H2, and H2 > 1 mm.

[0074] Based on the above embodiments of the present application, by defining the first safety clearance and the width of the second safety clearance, it is ensured that there is sufficient electrical clearance between the connecting support and the fixed beam 5 to meet the insulation requirements, so as to extend the electrical clearance requirements between the connecting support and other surrounding components as much as possible within a limited space.

[0075] During the specific processing and assembly process, the actual distances of the first safety clearance and the second safety clearance can be set according to the actual electrical clearance requirements of different platforms, and the present application does not make specific restrictions on this.

[0076] In addition, in some embodiments of the present application, the connecting support is embedded in the installation cavity 51, and the upper surface of the connecting support is lower than the upper surface of the fixed beam 5 where the installation cavity 51 is located.

[0077] Based on the above embodiments of the present application, by setting the upper surface of the connecting support to be lower than the upper surface of the fixed beam 5 where the installation cavity 51 is located, that is, the connecting support is completely embedded in the installation cavity 51 when it is set. Through this setting, on the one hand, when the connecting support is completely embedded in the installation cavity 51, it can reduce the occupation of the electrical compartment space in the power battery by the connecting support and the fixed beam 5 as a whole, and on the other hand, it makes the fixed beam 5 as a whole relatively flat, which is convenient for the subsequent cooperation and fixation of the fixed beam 5 with structures such as the cold plate or the bottom guard plate. Further, through the above setting, it is ensured that structures such as the bus bar 1 and the connecting row 2 arranged in the connecting support keep a sufficient distance from the components above the fixed beam 5, so as to further meet the creepage distance requirements of the battery pack and protect the components above the fixed beam 5.

[0078] In the present application, the bus bar 1 and the connecting row 2 can be connected to the accommodating cavity 33 by any suitable connection method. Refer to Figure 7 and Figure 8 As shown in, in an exemplary embodiment provided by the present application, a connecting nut 34 is embedded in the insulating bottom plate 31, and a connecting bolt 35 passes through the bus bar 1 and the connecting row 2 and is threadedly connected to the connecting nut 34.

[0079] Based on the above embodiments of the present application, the bus bar 1 and the connecting row 2 are connected and conducted by setting the connecting nut 34 and the connecting bolt 35. In specific use, the specific materials and dimensions of the connecting nut 34 and the connecting bolt 35 can be selected according to actual connection requirements.

[0080] Further, in order to facilitate the setting of the connecting nut 34 and the connecting bolt 35, refer to Figure 8 As shown in, in some embodiments provided by the present application, the insulating bottom plate 31 is recessed to form a connecting column 36, the connecting nut 34 is embedded in the connecting column 36, and a third reinforcing rib 37 is provided between the connecting column 36 and the second extension plate 42.

[0081] Based on the above embodiments of the present application, the connecting column 36 formed by recessing is used to increase the stability of the connecting bolt 35 and the connecting nut 34 when fixing the bus bar 1 and the connecting row 2. The arrangement of the third reinforcing rib 37 between the connecting column 36 and the second extension plate 42 can enable mutual support between the connecting column 36 and the second extension plate 42. In particular, the support of the connecting column 36 for the second extension plate 42 makes the second extension plate 42 have higher strength and a more stable structure.

[0082] As shown in Figure 8 In some embodiments of the present application, an avoidance groove 52 is formed on the fixed beam 5. The avoidance groove 52 is used to avoid the connecting column 36, and the avoidance groove 52 communicates with the installation cavity 51. The distance between the third reinforcing rib 37 and the connecting column 36 to the fixed beam 5 is H3, and H3 > 3 mm.

[0083] Based on the above embodiments of the present application, the arrangement of the avoidance groove 52 can facilitate the installation of the connecting column 36. By restricting the distance between the third reinforcing rib 37 and the connecting column 36 to the fixed beam 5, that is, restricting the distance between the third reinforcing rib 37 and the connecting column 36 to the edge of the installation cavity 51 or the avoidance groove 52, the creepage distance and electrical clearance of each conductive structure in the connecting support to the fixed beam 5 are further ensured to meet the insulation requirements, thereby improving the overall safety.

[0084] In addition, in the present application, a protective cover (not shown in the drawings) may also be provided at the opening position of the accommodating cavity 33 of the connecting support. The protective cover can be connected to the connecting support in a variety of ways such as snap connection. For example, as shown in Figure 3 and Figure 4 In an exemplary embodiment provided by the present application, a card slot may be provided in the upper part of the connecting support, so that the protective cover can be quickly and stably snap-connected to the connecting support by setting a buckle on the protective cover.

[0085] In addition, it should also be noted that the specific materials of the structures such as the connecting support and the protective cover are not limited in the present application. Any suitable insulating material can be selected in specific production and processing, such as plastics and resins, etc. The present application does not make specific restrictions on this.

[0086] Based on the above technical solutions, according to the second aspect of the present application, a battery pack is provided. The battery pack includes a battery cell module 6, a frame body 7, and the above-mentioned connecting support. The battery cell module 6 is arranged in the frame body 7, and the connecting support is arranged at the end of the battery cell module 6.

[0087] Based on the above embodiments of the present application, the battery pack provided by the present application includes the above-mentioned connection support. By providing the connection support, the creepage distance at the connection position between the tab 1 and the connection row 2 is extended, thereby further improving the insulation protection effect at the connection position between the tab 1 and the connection row 2, and further improving the insulation effect of the battery pack.

[0088] The preferred embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all fall within the protection scope of the present application.

[0089] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present application will not separately describe various possible combination methods.

[0090] Furthermore, any combination can be made between various different embodiments of the present application as long as it does not violate the idea of the present application, and it should also be regarded as the content disclosed by the present application.

Claims

1. A connecting support with an accommodation cavity, a bus bar and a connecting row are connected in the accommodation cavity, characterized in that, The connection support includes: An insulating seat body, including an insulating bottom plate and at least two insulating side plates. The insulating side plates are connected to the edge of the insulating bottom plate, and an accommodation cavity is formed between the insulating side plates and the insulating bottom plate; An extension component, connected to the insulating seat body. The extension component is arranged on the creepage path corresponding to the creepage distance between the bus bar and other conductive components, and the extension component is used to increase the creepage distance; Wherein, the extension component extends through the insulating seat body and is formed at the edge of the opening of the accommodation cavity, and the extension direction of the extension component is arranged at an angle with the setting direction of the part to be extended in the insulating seat body.

2. The connecting support according to claim 1, wherein The extension component includes a first extension plate and a second extension plate. The first extension plate is formed at the edge of the insulating side plate, and the second extension plate is formed at the edge of the insulating bottom plate. And the first extension plate is arranged at an angle with the insulating side plate, and the second extension plate is arranged at an angle with the insulating bottom plate.

3. The connecting support according to claim 2, characterized in that, A first reinforcing rib is arranged at the connection between the first extension plate and the insulating side plate; and / or, a second reinforcing rib is arranged at the edge of the second extension plate.

4. The connecting support according to claim 3, characterized in that, The extending direction of the first reinforcing rib is arranged at an angle with the extending direction of the first extension plate, and the extending direction of the second reinforcing rib is arranged at an angle with the extending direction of the second extension plate.

5. The connecting support according to claim 2, characterized in that, The connection support is installed on a fixed beam, and an installation cavity is formed on the fixed beam. The connection support is arranged in the installation cavity; A first safety gap is arranged between the first extension plate and the fixed beam. The width of the first safety gap is H1, and H1>1mm; A second safety gap is arranged between the second extension plate and the fixed beam. The width of the second safety gap is H2, and H2>1mm.

6. The connecting support according to claim 5, characterized in that, The connection support is embedded in the installation cavity, and the upper surface of the connection support is lower than the upper end surface of the installation cavity.

7. The connecting support according to claim 5, characterized in that A connection nut is embedded in the insulating bottom plate, and a connection bolt passes through the bus bar and the connection row and is threadedly connected to the connection nut.

8. The connecting support according to claim 7, characterized in that, The insulating bottom plate is recessed to form a connection column. The connection nut is embedded in the connection column, and a third reinforcing rib is arranged between the connection column and the second extension plate.

9. The connecting support according to claim 8, characterized in that, A relief groove is formed on the fixed beam. The relief groove is used to avoid the connection column, and the relief groove communicates with the installation cavity; The distance between the third reinforcing rib and the connection column to the fixed beam is H3, and H3>3mm.

10. A battery pack, characterized in that, The battery pack includes: A battery cell module; A frame body, the battery cell module is arranged in the frame body; and, The connection support according to any one of claims 1-9, and the connection support is arranged at the end of the battery cell module.

Images