Support and electrical connection assembly

Abstract

The application provides a support and an electrical connection assembly, and relates to the technical field of batteries. The support comprises a first support and a second support. A first side of the first support is used for mounting a CCS assembly, and a second side is connected with the second support. The second support is provided with a first mounting groove used for mounting a BMS plate. One groove end of the first mounting groove is provided with a first slot opening penetrating a first side wall of the second support. The first side wall is used for contacting a BDU module. The first support is provided with a first through hole used for electrical connection between the CCS assembly and the BMS plate. The first slot opening is used for electrical connection between the BMS plate and the BDU module. The support used for mounting the CCS assembly and the support used for mounting the BMS plate are integrated in the application. The BDU module is arranged close to the BMS plate, so that the CCS assembly can be directly electrically connected with the BMS plate and connected with the BDU module through the BMS plate. Therefore, the CCS assembly can realize transmission of voltage signals and output of high-voltage current by using a set of first output poles, and the structure of the electrical connection component is simplified and the assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a support and an electrical connection assembly. BACKGROUND

[0002] In the related art, a battery module outputs high-voltage current of the battery module to an input end of a BDU module (Battery energy Distribution Unit) through a part of electrical connection assemblies. At the same time, the battery module transmits voltage information of the battery module to a voltage acquisition end of a BMS plate (Battery Management System) through another part of electrical connection assemblies.

[0003] The electrical connection assemblies described above involve many components, which leads to a complex structure of the electrical connection assemblies and low assembly efficiency. SUMMARY

[0004] Embodiments of the present application provide a support and an electrical connection assembly, which can simplify the structure of the electrical connection assembly and improve the assembly efficiency of the electrical connection assembly.

[0005] In a first aspect, embodiments of the present application provide a support, which comprises a first support and a second support; the first support has a first side and a second side opposite to each other, and the first side is used for mounting a CCS assembly; the second support extends from the second side in a direction away from the first support, and a side of the second support away from the first support is provided with a first mounting groove used for mounting a BMS plate; a groove end of the first mounting groove is provided with a first slot opening penetrating a first side wall of the second support, and the first side wall is used for contacting a BDU module; wherein the first side is provided with a first through hole, the first through hole is in communication with a groove bottom of the first mounting groove, and the first through hole is used for electrical connection between the CCS assembly and the BMS plate, and the first slot opening is used for electrical connection between the BMS plate and the BDU module.

[0006] In an embodiment, the first side is provided with a second mounting groove used for mounting the CCS assembly, and the first through hole is arranged at a groove bottom of the second mounting groove.

[0007] In an embodiment, the second mounting groove comprises a plurality of sub-grooves, and each sub-groove is provided with the first through hole at a groove bottom.

[0008] In an embodiment, the plurality of sub-grooves are arranged in sequence along a first direction, and along a second direction, two ends of the sub-grooves are symmetrical to each other, and the first direction and the second direction are perpendicular to each other.

[0009] In an embodiment, the groove bottom of the sub-groove is provided with a matching rib, and the matching rib is provided with a second through hole.

[0010] In an embodiment, the matching rib includes a first segment and a second segment, one end of the first segment is connected with the groove wall of the sub-groove, the other end is connected with one end of the second segment, and an included angle is formed between the first segment and the second segment, and the groove wall of at least part of the sub-groove, the first segment and the second segment enclose the hole wall of the second through hole.

[0011] In an embodiment, the included angle between the first segment and the second segment ranges from 100° to 170°.

[0012] In an embodiment, the second side is provided with two cell mounting areas, which are respectively located on two sides of the second support; a pole connecting hole is further provided inside the first support from the first side, and the pole connecting hole is in communication with the cell mounting areas.

[0013] In an embodiment, the first support and the second support are integrally formed.

[0014] In an embodiment, the first side wall is provided with a positioning opening at an end away from the first support, and the positioning opening is in communication with the first slot.

[0015] In an embodiment, a plurality of glue filling through holes are provided on the first support.

[0016] In a second aspect, the embodiments of the present application further provide an electrical connection assembly, which includes a CCS assembly, a BMS board, a BDU module and the aforementioned support. The CCS assembly is installed on the first side; the BMS board is installed on the first mounting groove; the BDU module is abutted against the first side wall; wherein the electrical connection structure between the CCS assembly and the BMS board is located in the first through hole, and the electrical connection structure between the BMS board and the BDU module is located in the first slot.

[0017] In an embodiment, the CCS assembly includes a first output pole and a plurality of bus bars, the BMS board includes a second output pole and a plurality of voltage collection terminals, the first output pole and the plurality of bus bars correspond to the plurality of voltage collection terminals one by one, the first output pole and the plurality of bus bars are respectively electrically connected with the voltage collection terminals corresponding thereto, and the voltage collection terminal electrically connected with the first output pole is further electrically connected with the second output pole; the BDU module includes a first input pole, and the first input pole is electrically connected with the second output pole.

[0018] In an embodiment, the first input pole and the second output pole are plugged.

[0019] In an embodiment, one end of the first input pole close to the second output pole is provided with a plug hole, and the second output pole is inserted into the plug hole.

[0020] In an embodiment, the second support has a second side wall opposite to the first side wall, the second side wall is provided with a threading hole, and a data interface of the BMS board is opposite to the threading hole.

[0021] The beneficial effects of the embodiments of the present application are as follows:

[0022] In the embodiments of the present application, by integrating the first bracket for mounting the CCS assembly and the second bracket for mounting the BMS plate, and arranging the BMS plate adjacent to the BDU module, the CCS assembly can be directly connected with the BMS plate through the first through hole for voltage signal transmission, and the BMS plate can be connected with the BDU module through the first slot for high-voltage current output. In this way, on the one hand, the CCS assembly can realize voltage signal transmission and high-voltage current output by using a set of first output poles, thereby reducing a set of first output poles, ultimately improving the material cost and related installation process cost of the electrical connection of the battery module, and improving the installation efficiency. On the other hand, the jumper row, bolts, wire harnesses, connectors and other components and related installation processes can be omitted, thereby further simplifying the structure of the electrical connection, and then improving the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a structural schematic view of a bracket provided by the embodiments of the present application;

[0025] Figure 2 is a side view of the bracket provided by the embodiments of the present application;

[0026] Figure 3 is a top view of the bracket provided by the embodiments of the present application;

[0027] Figure 4 is an enlarged view of position A in Figure 1

[0028] Figure 5 is a structural schematic view of the bracket from a bottom perspective provided by the embodiments of the present application;

[0029] Figure 6 is a structural schematic view of the first side wall away from one end of the first bracket provided by the embodiments of the present application;

[0030] Figure 7 is a structural schematic view of an electrical connection assembly provided by the embodiments of the present application;

[0031] Figure 8 is a structural schematic view of a BMS plate provided by the embodiments of the present application; ​

[0032] Figure 9 is a schematic diagram of an electrical connection structure between electrical components provided by an embodiment of the present application;

[0033] Figure 10 is a schematic diagram of a structure of a busbar group provided by an embodiment of the present application;

[0034] Figure 11 is a schematic diagram of a structure of a BDU module provided by an embodiment of the present application;

[0035] Figure 12 is an exploded view of a BDU module provided by an embodiment of the present application;

[0036] Figure 13 is a schematic diagram of a structure of a bracket from another perspective provided by an embodiment of the present application.

[0037] 001 - electrical connection assembly;

[0038] 011 - CCS assembly; 111 - first output pole; 112 - busbar; 1121 - main parallel row; 1122 - series row; 1123 - sub-parallel row; 1125 - busbar unit;

[0039] 012 - BMS board; 121 - voltage acquisition end; 122 - second output pole; 1221 - second bolt via; 013 - BDU module; 131 - first input pole; 1311 - jack; 1312 - first bolt via; 132 - shell; 1321 - input slot; 1322 - output slot; 134 - first high-voltage protection cover; 135 - second high-voltage protection cover; 136 - third output pole;

[0040] 002 - bracket; 021 - body;

[0041] 213 - first side wall; 2131 - positioning opening; 214 - first through hole; 215 - first slot;

[0042] 216 - first bracket; 2161 - sub-slot; 21612 - pole connecting hole; 2162 - matching rib; 2163 - second through hole; 2164 - first segment; 2165 - second segment; 2166 - glue pouring through hole;

[0043] 217 - second bracket; 2171 - first mounting slot; 2172 - threading hole;

[0044] 218 - battery cell mounting area. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of the present application.

[0046] In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the present application, and is not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the outline of the device.

[0047] The terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0048] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] The terms "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0050] In the description of the embodiments of the present application, the words "example" or "for example" or the like are used to mean exemplify, illustrate, or describe. Any embodiment or design presented as "example" or "for example" in the embodiments of the present application is not to be construed as being more preferred or having more advantages than other embodiments or designs. The words "example" or "for example" or the like are intended to present a clear concept in a clear manner.

[0051] Before introducing the support and electrical connection assembly of the present application, first introduce the related background information of the embodiments of the present application.

[0052] In the related art, the output of high-voltage current of the battery module and the collection of cell signals both need to pass through a CCS assembly (Cells Contact System, battery module collection integrated part). The CCS assembly includes multiple metal rows. The multiple metal rows are respectively busbars for connecting multiple cells in series to form a battery module and first output poles for outputting high-voltage current of the battery module. The high-voltage current output mode of the battery module is: first, a set of first output poles of the CCS assembly is electrically connected with a cross-over row through a bolt, the cross-over row is electrically connected to the input end of the BDU module through a bolt, and finally the high-voltage current of the battery module is output by the BDU module. And the voltage collection mode of the battery module is: first, the busbar and another set of first output poles of the CCS assembly are welded with a wire harness, and then the wire harness is connected to the voltage collection end of the BMS board through a connector. This high-voltage current output mode and voltage signal collection mode have many problems, which are as follows:

[0053] 1. Since the CCS assembly needs to be connected with the BDU module through a set of first output poles to transmit high-voltage current, and the CCS assembly also needs to be electrically connected with the BMS board through another set of first output poles to collect the voltage signal of the output pole of the battery module, which results in that the CCS needs to be configured with two sets of first output poles, thereby increasing the structural complexity and material cost of the electrical connection part of the battery module, and thus reducing the assembly efficiency;

[0054] 2. Since the first output poles of the CCS assembly, the cross-over row and the BDU module are all connected through bolts, which increases the electrical installation process, and the installation of the cross-over row needs manual positioning, thereby increasing the installation process cost of the battery module process and reducing the assembly efficiency;

[0055] 3. Since the wire harness welded on the first output poles and the busbar needs to be arranged between the CCS assembly and the BMS board, and the voltage signal collected by the wire harness is transmitted to the BMS board through an adapter, the configuration of the wire harness and the connector increases the material cost of the electrical connection of the battery module. And the wire harness and the connector need to be configured with related process flow to be fixed and arranged, which increases the electrical installation process and the installation process cost, thereby reducing the assembly efficiency of the power battery module.

[0056] Based on this, the present application provides a bracket and an electrical connection assembly, which will be described in detail below.

[0057] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the bracket 002 provided in an embodiment of this application. Figure 2 This is a side view of the bracket 002 provided in an embodiment of this application. An embodiment of this application provides a bracket 002. The bracket 002 includes a first bracket 216 and a second bracket 217. The first bracket 216 has a first side and a second side facing away from each other. The first side is used to mount a CCS assembly. The second bracket 217 extends from the second side in a direction away from the first bracket 216, and a first mounting groove 2171 for mounting a BMS board is provided on the side of the second bracket 217 facing away from the first bracket 216. A first slot 215 penetrating a first sidewall 213 of the first mounting groove 2171 is provided at one end of the groove. The first sidewall 213 is used to contact a BDU module. A first through hole 214 is provided on the first side, communicating with the bottom of the first mounting groove 2171. The first through hole 214 is used for electrical connection between the CCS assembly and the BMS board, and the first slot 215 is used for electrical connection between the BMS board and the BDU module.

[0058] It is understood that the bracket 002 is an insulating component, which insulates and isolates the parts between the CCS module and the battery cell that do not require electrical connection. For example, the bracket 002 is a plastic component, and its material can be engineering plastic, specifically a mixture of PC resin and ABS resin. The output terminal of the CCS module is electrically connected to the input terminal of the BMS board, and the output terminal of the BMS board is electrically connected to the input terminal of the BDU module. At least one of the output terminal of the CCS module and the input terminal of the BMS is located in the first through hole 214. At least one of the output terminal of the BMS board and the input terminal of the BDU module is located in the first slot 215.

[0059] The CCS component's output terminal serves as both the first output electrode and the busbar. The BMS board's input terminal is the voltage acquisition terminal, and its output terminal transmits the high-voltage current from the CCS component to the BDU module.

[0060] For example, the input terminal of the BMS board is located on the side of the first through hole 214 away from the first side, and the output terminal of the CCS component passes through the first through hole 214 and is electrically connected to the input terminal of the BMS board. The input terminal of the BDU module is located on the side of the first slot 215 away from the first mounting slot 2171, and the output terminal of the BMS board extends out of the first slot 215 and is electrically connected to the input terminal of the BDU.

[0061] In the embodiment, by integrating the first bracket for mounting the CCS assembly and the second bracket for mounting the BMS plate, and arranging the BDU module adjacent to the BMS plate, the CCS assembly can be directly electrically connected with the BMS plate through the first through hole 214 for transmission of the voltage signal, and the BMS plate can be electrically connected with the BDU module through the first slot 215 for output of the high-voltage current. In this way, on the one hand, the CCS assembly can realize transmission of the voltage signal and output of the high-voltage current by using a set of first output poles, thereby reducing a set of first output poles, and finally simplifying the structure of the electrical connector of the battery module and improving the installation efficiency. On the other hand, the jumper row, bolts, wire harnesses, connectors and other components and related installation processes can be omitted, thereby further reducing the material cost and the related installation process cost of the electrical connector.

[0062] Referring to FIG. 1, in an embodiment, the first side is provided with a second mounting groove for mounting the CCS assembly, and the first through hole 214 is arranged at the groove bottom of the second mounting groove.

[0063] It can be understood that the first output poles of the CCS assembly and the bus bar can be embedded in the second mounting groove, and can be further bonded in the second mounting groove by glue.

[0064] In the embodiment, by arranging the second mounting groove to mount the CCS assembly, the CCS assembly can be positioned based on the groove wall of the second mounting groove, thereby improving the position accuracy of the CCS assembly and improving the assembly efficiency.

[0065] Referring to FIG. 1, Figure 1 In an embodiment, the second mounting groove includes a plurality of sub-grooves 2161. The groove bottom of each sub-groove 2161 is provided with a first through hole 214.

[0066] It can be understood that the first output poles of the CCS assembly and the bus bar correspond to the plurality of sub-grooves 2161 one by one, and are mounted in the corresponding sub-grooves 2161.

[0067] In the embodiment, by arranging the second mounting groove as a plurality of sub-grooves 2161, the first output poles of the CCS assembly and the bus bar can be respectively located in a sub-groove 2161, thereby respectively mounting and positioning the first output poles and the bus bar based on the plurality of sub-grooves 2161, and further improving the position accuracy of the CCS assembly.

[0068] Referring to FIG. 1, Figure 3 , Figure 3is a top view of the bracket 002 provided by an embodiment of the present application. In an embodiment, the CCS assembly is used to connect with the battery cell, a plurality of sub-slots 2161 are sequentially arranged along a first direction, and along a second direction, two ends of the sub-slot 2161 are symmetric to each other. The first direction and the second direction are both perpendicular to the axial direction of the battery cell, and the first direction and the second direction are perpendicular to each other.

[0069] Exemplarily, the second bracket 217 is arranged opposite to the symmetry center of the sub-slot 2161. The first bracket 216 is a rectangular plate, which has a long side and a short side. The first direction is parallel to the long side, and the second direction is parallel to the short side. The first bracket 216 has a center of symmetry parallel to the long side.

[0070] In the embodiment, by arranging the sub-slot 2161 into a symmetric structure, the load of the bracket 002 can be balanced, so that the gravity of the CCS assembly borne by the bracket 002 is more uniformly distributed, thereby reducing the condition of unilateral overload or uneven force on both sides of the bracket 002, and further improving the stability and carrying capacity of the bracket 002.

[0071] Please refer to Figure 4 , Figure 4 is Figure 1 is an enlarged view of A in FIG. 16. In an embodiment, the bottom of the sub-slot 2161 is provided with a matching rib 2162, and the matching rib 2162 is provided with a second through hole 2163.

[0072] It can be understood that the busbar is located in the first sub-slot 2161, and the busbar is provided with a notch matched with the matching rib 2162. By matching the notch with the matching rib 2162, the matching surface between the busbar and the first sub-slot 2161 can be increased, thereby improving the positional stability of the busbar.

[0073] In addition, when the battery operates to generate heat and the busbar expands, the busbar can extrude the matching rib 2162 to deform the second through hole 2163, thereby providing a buffer space for the expansion and deformation of the busbar, further improving the stress state of the busbar, and finally improving the working stability of the busbar.

[0074] Please refer to Figure 4 In an embodiment, the matching rib 2162 includes a first segment 2164 and a second segment 2165, one end of the first segment 2164 is connected with the slot wall of the sub-slot 2161, the other end is connected with one end of the second segment 2165, and the first segment 2164 and the second segment 2165 have an included angle therebetween. At least part of the slot wall of the sub-slot 2161, the first segment 2164 and the second segment 2165 enclose the hole wall of the second through hole 2163.

[0075] Exemplarily, the included angle between the first segment 2164 and the second segment 2165 ranges from 100° to 170°, which includes but is not limited to 100°, 120°, 133°, 145°, 160°, and 170°.

[0076] In the embodiment, the setting described above makes the fitting rib 2162 have multiple fitting surfaces with the busbar in multiple directions. In this way, on the one hand, the fitting rib 2162 can position the busbar in multiple directions, thereby improving the position accuracy of the busbar. On the other hand, the fitting rib can provide a buffer space for the expanded busbar in multiple directions, thereby further improving the stress state of the busbar.

[0077] Please refer to Figure 2 In an embodiment, the second side is provided with a cell mounting area 218. The cell mounting area 218 is two and is located on both sides of the second support 217. The first side is further provided with a pole connecting hole 21612 inside the first support 216. The pole connecting hole 21612 is in communication with the cell mounting area.

[0078] It can be understood that the cell mounting area 218 is used for mounting the cell. One end of the CCS assembly located in the second mounting groove is connected with the pole of the cell through the pole connecting hole 21612. Generally, the pole connecting hole 21612 opposite to the positive electrode of the cell is a round hole, and the pole connecting hole 21612 opposite to the negative electrode of the cell is a sector hole, as shown in Figure 3 .

[0079] Exemplarily, the two cell mounting areas 218 are located on both sides of the width direction of the first mounting groove 2171. In this way, the BMS board and the BDU module can be located between the two cell mounting areas 218, and the support 002 can be a left-right symmetrical structure, so as to facilitate the arrangement and installation of related components.

[0080] In the embodiment, by setting the cell mounting area 218 and the second support 217 on the same side of the first support 216, the structural compactness of the battery module using the support 002 can be improved.

[0081] In an embodiment, the first support 216 and the second support 217 are integrally formed.

[0082] Exemplarily, the first support 216 and the second support 217 are integrally injection molded.

[0083] In the embodiment, by integrally forming the first support 216 and the second support 217, the strength of the support as a whole can be improved, so that the support of the CCS assembly is more stable.

[0084] Please refer to Figure 5 and Figure 6 ,Figure 5 is a structural schematic diagram of the bracket 002 from a bottom perspective provided by an embodiment of the present application, Figure 6 is a structural schematic diagram of one end of the first side wall 213 away from the first bracket 216 provided by an embodiment of the present application. In an embodiment, the one end of the first side wall 213 away from the first bracket 216 is provided with a positioning opening 2131, which is in communication with the first slot 215.

[0085] It can be understood that the positioning opening 2131 cooperates with the BMS board. Specifically, a boss is provided on the shell of the BMS board, which is clamped with the positioning opening 2131 when the BMS board is installed in the first mounting slot 2171.

[0086] In addition, positioning openings are provided at both slot ends of the first mounting slot 2171 and close to one side of the slot of the first mounting slot 2171. Correspondingly, bosses are provided at both ends of the shell of the BMS board.

[0087] In the present embodiment, by providing the positioning opening 2131, the cooperation surface of the second bracket and the BMS board is increased, so that the position accuracy of the BMS board relative to the bracket can be improved, thereby facilitating the electrical connection of the BMS board with the BDU and the CCS assembly.

[0088] Please refer to Figure 4 In an embodiment, a plurality of glue-filling through holes are provided on the first bracket.

[0089] It can be understood that after the components such as the battery cell, the bracket, etc. are installed in the battery box, in order to ensure the electrical connection stability of each electrical component and control the vibration during transportation, it is necessary to glue-filling, so as to glue the battery cell, the bracket, the CCS assembly, etc. as a whole by glue.

[0090] In addition, the glue-filling hole can not only play a glue-filling role, but also realize the lightweight of the bracket, thereby facilitating the control of the weight of the battery.

[0091] Please refer to Figure 7 , Figure 7 is a structural schematic diagram of the electrical connection assembly 001 provided by an embodiment of the present application. Accordingly, an embodiment of the present application also provides an electrical connection assembly 001, which comprises a CCS assembly 011, a BMS board 012, a BDU module 013 and the aforementioned bracket 002. The CCS assembly 011 is installed on the first side. The BMS board 012 is installed in the first mounting slot 2171; the BDU module 013 abuts against the first side wall 213. The electrical connection structure between the CCS assembly 011 and the BMS board 012 is located in the first through hole 214. The electrical connection structure between the BMS board 012 and the BDU module 013 is located in the first slot 215.

[0092] The CCS assembly 011 has a first output pole 111 and a plurality of busbar groups 112. The BMS board 012 has a second output pole 122 and a plurality of voltage collection terminals 121, as shown in Figure 8 Figure 8 Figure 1 is a structural diagram of the BMS board 012 according to an embodiment of the present application. In general, the voltage collection terminals 121 at both ends of the BMS board 012 are used to collect the output pole voltage of the battery module. The first output pole 111 and the plurality of busbar groups 112 correspond to the plurality of voltage collection terminals 121 respectively. The first output pole 111 and the plurality of busbar groups 112 are electrically connected to the corresponding voltage collection terminals 121 respectively. The voltage collection terminal 121 electrically connected to the first output pole 111 is also electrically connected to the second output pole 122. The BDU module 013 includes a first input pole 131, which is electrically connected to the second output pole 122, as shown in Figure 9 Figure 9 Figure 2 is a structural diagram of the electrical connection between the electrical components according to an embodiment of the present application.

[0093] It can be understood that the input poles in the foregoing include positive input poles and negative input poles, and the output poles include positive output poles and negative output poles. The positive input poles are electrically connected to the corresponding positive output poles, and the negative input poles are electrically connected to the corresponding negative output poles. The electrical connection between the first output pole 111 and the busbar 112 and the voltage collection terminal 121 can be achieved by welding, abutting or plugging. Correspondingly, the electrical connection between the first input pole 131 and the second output pole 122 can be achieved by welding, abutting or plugging.

[0094] The material of the CCS assembly is AL 1060-O, and correspondingly, the first output pole 111 and the busbar 112 are aluminum bars. The second output pole 122 and the first input pole 131 are copper bars.

[0095] In addition, the plurality of busbar groups 112 are arranged in the first direction in sequence, and the first output pole 111 has two, which are the positive first output pole and the negative first output pole, and the two first output poles are located at both ends of the arrangement direction of the plurality of busbar groups 112. The busbar group includes a main parallel row 1121 and two busbar units 1125 arranged symmetrically in the first direction. The busbar unit 1125 includes a plurality of series rows 1122 and a sub-parallel row 1123 parallelly connected to the plurality of series rows 1122. One end of the main parallel row 1121 is connected to the sub-parallel row 1123 of one busbar unit, and the other end is connected to the sub-parallel row 1123 of another busbar unit, as shown in Figure 10 Figure 10 Figure 3 is a structural diagram of the busbar group 112 according to an embodiment of the present application. The main parallel row 1121 is connected to the voltage collection terminal of the BMS board. ​​​

[0096] In the embodiment, by sequentially electrically connecting the CCS assembly 011, the BMS plate 012 and the BDU module 013, the BMS plate 012 can not only collect the information of the battery cell, but also output the high-voltage current from the CCS assembly 011 to the BDU module 013 via the BMS plate 012. In this way, on the one hand, the CCS group can use a set of first output poles 111 to realize the transmission of voltage signals and the output of high-voltage current, thereby reducing a set of first output poles 111, ultimately improving the material cost and related installation process cost of the electrical connection of the battery module, and improving the installation efficiency. On the other hand, the jumper row, bolt, wire harness, connector and other components and related installation processes can be omitted, thereby further reducing the material cost and related installation process cost of the electrical connection, thereby improving the installation efficiency.

[0097] In addition, in the embodiment, based on the support 002, on the one hand, the CCS assembly 011, the BMS plate 012 and the BDU module 013 can be more closely connected together, improving the structural compactness of the electrical connection assembly 001; on the other hand, the support 002 can support and position these components, thereby improving the stress state of the electrical connection parts therebetween, and thereby making the electrical connection state between these components more stable.

[0098] Please refer to Figure 11 , Figure 11 is a structural schematic diagram of the BDU module 013 provided by the embodiment of the present application. In an embodiment, the first input pole 131 is plugged with the second output pole 122. Specifically, the first input pole 131 is provided with a plug hole 1311 at one end close to the second output pole 122, and the second output pole 122 is inserted into the plug hole 1311.

[0099] In the embodiment, by plugging the first input pole 131 with the second output pole 122, on the one hand, the BDU module 013 can be positioned relative to the BMS plate 012 based on the plugging structure, thereby improving the position accuracy of the BDU module 013. On the other hand, the electrical connection structure between the first input pole 131 and the second output pole 122 is simple, easy to operate, and convenient for subsequent maintenance.

[0100] In the embodiment, the first input pole 131 is provided with a first bolt through hole 1312. The second output pole 122 is provided with a second bolt through hole 1221. The BDU module 013 is provided with a nut. The screw end of the bolt is sequentially threaded through one end of the first bolt through hole 1312, the second bolt through hole 1221 and the other end of the first bolt through hole 1312, and then threadedly connected with the nut, thereby fixing the first input pole 131 and the second output pole 122 to each other, completing the high-voltage circuit connection, and thereby improving the electrical connection stability between the BDU module 013 and the BMS plate 012.

[0101] Referring to Figure 12 , Figure 12 is an exploded view of the BDU module 013 provided by an embodiment of the present application. In an embodiment, the BDU module 013 further includes a housing 132, a first high-voltage protection cover 134, a second high-voltage protection cover 135, and a third output pole 136. The housing 132 defines an input slot 1321 and an output slot 1322. The input slot 1321 is located on a side of the housing 132 away from the BMS board 012. The output slot 1322 is located on a side of the housing 132 close to the first bracket 216. The first input pole 131 is disposed in the input slot 1321, and the first high-voltage protection cover 134 covers the input slot 1321 to insulate the first input pole 131 from the outside. The positive pole and the negative pole of the first input pole 131 are arranged along the axial direction of the first through hole 214. The third output pole 136 is disposed in the output slot 1322, and the second high-voltage protection cover 135 covers the output slot 1322 to insulate the third output pole 136 from the outside. The positive pole of the third output pole 136 is electrically connected to the positive pole of the first input pole 131, and the negative pole of the third output pole 136 is electrically connected to the negative pole of the first input pole 131.

[0102] Referring to Figure 13 , Figure 13 is a structural schematic view of the bracket 002 from another perspective provided by an embodiment of the present application. The second bracket 217 has a second side wall arranged opposite to the first side wall 213, and the second side wall is provided with a wire passing hole 2172. The side of the BMS board 012 away from the first slot 215 abuts against the slot end of the first mounting slot 2171 away from the first slot 215, and the data interface of the BMS board 012 is arranged opposite to the wire passing hole 2172.

[0103] In the embodiment, by arranging the wire passing hole 2172, the data line can be connected to the data interface of the BMS board 012 through the wire passing hole 2172, thereby facilitating the connection of the BMS board 012 and other control system signals. In addition, the abutment of the BMS board 012 and the slot end of the first mounting slot 2171 away from the first slot 215 can limit the movement of the BMS board 012 based on the resistance of the slot end when the BDU module 013 and the BMS board 012 are plugged, thereby eliminating the need for manual positioning of the BMS board 012, improving the convenience and efficiency of assembly.

[0104] The above has introduced the embodiments of the present application in detail, and the specific examples have been applied to describe the principles and implementation manners of the present application; the above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the present application; in conclusion, the content of the specification should not be understood as limiting the present application.

Claims

1. A stent, characterized by, The first bracket has a first side and a second side opposite to each other, and the first side is used for mounting a CCS assembly. The second bracket extends from the second side in a direction away from the first bracket, and a side of the second bracket away from the first bracket is provided with a first mounting slot used for mounting a BMS board, and a slot end of the first mounting slot is provided with a first slot opening penetrating a first side wall of the second bracket, and the first side wall is used for contacting a BMS module. The first side is provided with a first through hole in communication with a slot bottom of the first mounting slot, and the first through hole is used for electrical connection between the CCS assembly and the BMS board, and the first slot opening is used for electrical connection between the BMS board and the BMS module. The bracket is a plastic part. The first side is provided with a second mounting slot used for mounting a CCS assembly, and the first through hole is arranged at a slot bottom of the second mounting slot.

2. The stent of claim 1, wherein The second mounting slot includes a plurality of sub-slots, and each sub-slot is provided with the first through hole at a slot bottom.

3. The stent of claim 2, wherein, The plurality of sub-slots are arranged in a first direction in sequence, and in a second direction, two ends of the sub-slots are symmetrical to each other, and the first direction is perpendicular to the second direction.

4. The stent of claim 3, wherein, The slot bottom of the sub-slot is provided with a matching rib, and the matching rib is provided with a second through hole.

5. The stent defined in Claim 3, wherein, The matching rib includes a first segment and a second segment, one end of the first segment is connected with a slot wall of the sub-slot, the other end is connected with one end of the second segment, and an included angle is formed between the first segment and the second segment, and at least part of the slot wall of the sub-slot, the first segment and the second segment enclose a hole wall of the second through hole.

6. The stent defined in Claim 5, wherein, The included angle between the first segment and the second segment ranges from 100° to 170°.

7. The stent defined in Claim 6, wherein, The second side is provided with an electrode core mounting area, and the electrode core mounting area has two and is arranged at two sides of the second bracket respectively; an electrode post connecting hole is further arranged from the first side to the inside of the first bracket, and the electrode post connecting hole is in communication with the electrode core mounting area.

8. The stent defined in Claim 1, wherein, The first bracket and the second bracket are integrally formed.

9. The stent defined in any one of claims 1-8, wherein, An end of the first side wall away from the first bracket is provided with a positioning opening in communication with the first slot opening.

10. The stent defined in any one of claims 1-8, wherein, A plurality of glue injection through holes are arranged on the first bracket.

11. The stent defined in any one of claims 1-8, wherein, The bracket includes any one of claims 1-11.

12. An electrical connection assembly, characterized by The CCS assembly is mounted on the first side. The BMS board is mounted on the first mounting slot. The BMS module abuts against the first side wall. The electrical connection structure between the CCS assembly and the BMS board is located in the first through hole, and the electrical connection structure between the BMS board and the BMS module is located in the first slot opening. ​ ​ 13. The electrical connection assembly of claim 12, wherein, The CCS assembly comprises a first output pole and a plurality of busbar groups; the BMS board comprises a second output pole and a plurality of voltage collection terminals, the first output pole and the plurality of busbar groups correspond to the plurality of voltage collection terminals one by one, the first output pole and the plurality of busbar groups are electrically connected to the corresponding voltage collection terminals respectively, and the voltage collection terminal electrically connected to the first output pole is also electrically connected to the second output pole; the BDU module comprises a first input pole, and the first input pole is electrically connected to the second output pole.

14. The electrical connection assembly of claim 13, wherein, The first input pole is plugged with the second output pole.

15. The electrical connection assembly of claim 14, wherein, The first input pole is provided with a socket near one end of the second output pole, and the second output pole is inserted into the socket.

16. An electrical connection assembly according to any of claims 12 to 15, wherein, The second support has a second side wall opposite to the first side wall, and the second side wall is provided with a threading hole, and the data interface of the BMS board is opposite to the threading hole.

Images