Busbar components

Abstract

The present invention discloses a busbar assembly, which includes: a DCDC module, wherein the DCDC module is provided with a first busbar; and a battery stack module, wherein the battery stack module is provided with a second busbar; wherein the DCDC module and the battery stack module are spliced and connected to define an installation cavity, wherein one of the first busbar and the second busbar is provided with a movable connecting portion, and the other of the first busbar and the second busbar is detachably connected to the connecting portion within the installation cavity, and the installation cavity has an installation window directly opposite to the connecting portion. The busbar assembly of an embodiment of the present invention, by arranging the first busbar and the second busbar in the installation cavity and making the first busbar and the second busbar relatively adjustable, is convenient for realizing the electrical connection between the DCDC module and the battery stack module, thereby reducing the processing accuracy required for the busbar assembly, while avoiding leakage of the busbar assembly and improving the safety of the busbar assembly.

Description

Technical Field

[0001] The present invention relates to the field of electrical connection between high-voltage modules of an electric power system, such as a fuel cell system, and in particular to a busbar assembly. Background Art

[0002] In the related art, the fuel cell system includes a fuel cell stack module that generates high-voltage current, which is connected to a power distribution module including power electronic components (such as a DC-DC converter). The traditional high-voltage electrical connection between the fuel cell stack and the DC-DC converter is mainly through a direct connection between the fuel cell stack output bus and the DC-DC input bus (i.e., a copper bus). Bolts need to pass through the through holes of the traditional fuel cell stack bus and the DC-DC bus for precise matching to secure them together. Since the fuel cell stack bus and the DC-DC bus are both fixed, there is a situation where the axis of the fuel cell stack bus threaded hole is inconsistent with the axis of the DC-DC bus threaded hole, which requires higher precision requirements and high processing costs, leaving room for improvement. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a busbar assembly that can not only facilitate the installation of a stack module and a DC-DC module, reducing machining accuracy and costs, but also can be used to electrically connect two electrical components in other devices, thereby reducing connection difficulty and improving installation efficiency.

[0004] According to an embodiment of the present invention, a busbar assembly includes: a DCDC module, which is provided with a first busbar; and a battery stack module, which is provided with a second busbar. The DCDC module and the battery stack module are spliced and connected to define an installation cavity, one of the first busbar and the second busbar is provided with a movable connecting portion, and the other of the first busbar and the second busbar is detachably connected to the connecting portion within the installation cavity, and the installation cavity has an installation window that is opposite to the connecting portion.

[0005] According to the busbar assembly of an embodiment of the present invention, a first busbar and a second busbar are arranged in the installation cavity, and the first busbar and the second busbar are made relatively adjustable to facilitate the electrical connection between the DCDC module and the battery stack module, thereby reducing the processing accuracy required for the busbar assembly, saving processing costs, and avoiding leakage of the busbar assembly, thereby improving the safety of the busbar assembly.

[0006] According to some embodiments of the busbar assembly of the present invention, the DCDC module and the battery stack module are respectively provided with a first installation cavity and a second installation cavity open toward each other, the first installation cavity and the second installation cavity are spliced into the installation cavity, the first busbar is arranged in the first installation cavity, and the second busbar is arranged in the second installation cavity; wherein, the first busbar extends into the second installation cavity and is connected to the second busbar, or the second busbar extends into the first installation cavity and is connected to the first busbar.

[0007] According to some embodiments of the busbar assembly of the present invention, the first mounting cavity is provided with the mounting window, the second busbar extends into the first mounting cavity to be detachably connected to the first busbar through a connecting piece, and the connection position of the second busbar and the first busbar is arranged opposite to the mounting window.

[0008] According to the busbar assembly of some embodiments of the present invention, the first busbar is provided with a first connecting hole, and the second busbar includes a busbar assembly and a fixed busbar, the busbar assembly can be movably installed on the fixed busbar, and the busbar assembly is provided with a second connecting hole for connecting with the first connecting hole.

[0009] According to some embodiments of the busbar assembly of the present invention, the busbar assembly includes a mounting portion and a connecting portion, the mounting portion is movably mounted on the fixed busbar along a first direction, the connecting portion is movably mounted on the mounting portion along a second direction, the second connecting hole is provided in the connecting portion, and the first direction intersects with the second direction.

[0010] According to some embodiments of the busbar assembly of the present invention, the first direction is a direction parallel to the first busbar, and the second direction is a direction perpendicular to the first busbar.

[0011] According to some embodiments of the bus assembly of the present invention, the mounting portion is slidably installed on the fixed bus along a first direction, and the mounting portion and the fixed bus are positioned and matched by a first limiting member; the connecting portion is inserted into the mounting portion along the second direction, and the connecting portion and the mounting portion are positioned and matched by a second limiting member.

[0012] According to some embodiments of the present invention, the busbar assembly further includes: a sealing cover, which is detachably mounted at the installation window, and a first sealing member is provided between the sealing cover and an edge of the installation window.

[0013] According to the busbar assembly of some embodiments of the present invention, a sealing groove is defined between the DCDC module and the stack module, a second sealing member is provided in the sealing groove, and the end faces of the DCDC module and the stack module facing each other are respectively pressed against two sides of the second sealing member.

[0014] According to the busbar assembly of some embodiments of the present invention, the DCDC module is provided with a first fixing hole, and the battery stack module is provided with a second fixing hole. The first fixing hole and the second fixing hole are arranged opposite each other, and the DCDC module and the battery stack module are detachably connected by a fixing member passing through the first fixing hole and the second fixing hole.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0017] Figure 1 is a structural schematic diagram of a busbar assembly according to an embodiment of the present invention;

[0018] Figure 2 is a structural diagram of a DCDC module in a bus assembly according to an embodiment of the present invention;

[0019] Figure 3 is a structural schematic diagram of a battery stack module in a busbar assembly according to an embodiment of the present invention;

[0020] Figure 4 4 is a schematic structural diagram of a second busbar in a busbar assembly according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] busbar assembly 100,

[0023] DCDC module 1, first bus 11, first connection hole 111, first installation cavity 12, installation window 13, first fixing hole 14, arc-shaped avoidance groove 15, installation groove 16,

[0024] Fuel cell module 2, second busbar 21, busbar assembly 211, mounting portion 2111, connecting portion 2112, second connecting hole 2113, fixing busbar 212, fastening bolt 213, second limiting member 214, first limiting member 215,

[0025] Second installation cavity 22 , second fixing hole 23 , sealing groove 24 , connecting member 3 . DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] Reference below Figure 1-Figure 4 A busbar assembly 100 according to an embodiment of the present invention is described.

[0028] like Figure 1 As shown, the busbar assembly 100 according to an embodiment of the present invention includes: a DCDC module 1 and a battery stack module 2 .

[0029] The DCDC module 1 is provided with a first busbar 11, and the stack module 2 is provided with a second busbar 21. It should be noted that the stack module 2 is used to generate direct current, and the direct current generated by the stack module 2 can be output to the outside through the second busbar 21. The DCDC module 1 can receive the current output by the stack module 2 through the first busbar 11 and perform voltage transformation and rectification on the current to convert the current generated by the stack module 2 into the required current. At the same time, the first busbar 11 and the second busbar 21 can be respectively taken as two to correspond to the positive and negative poles of the stack module 2, so that the current can be normally supplied to the outside.

[0030] Among them, such as Figure 1 As shown, the DCDC module 1 and the stack module 2 are both constructed as a square shell structure, the ends of the DCDC module 1 and the stack module 2 are arranged opposite each other, and the sizes of the ends of the DCDC module 1 and the stack module 2 are equal. The DCDC module 1 and the stack module 2 are arranged opposite each other and spliced together to construct a square bus assembly 100, which reduces the overall size of the bus assembly 100 while ensuring the stability of the bus assembly 100.

[0031] The DCDC module 1 and the battery stack module 2 jointly define an installation cavity, one of the first busbar 11 and the second busbar 21 is provided with a movable connecting portion 2112, and the other of the first busbar 11 and the second busbar 21 is detachably connected to the connecting portion 2112 in the installation cavity, and the installation cavity has an installation window 13, which is used to connect the installation cavity with the outside world. The operator can insert the operating tool into the installation cavity through the installation window 13 to perform the operation. It should be noted that in the specific design, the installation window 13 can be designed to be able to be opened and closed flexibly. For example, when the first busbar 11 and the second busbar 21 are connected and assembled, the installation window 13 can be opened to enable the first busbar 11 and the second busbar 21 to be connected through the installation window 13. After the connection between the first busbar 11 and the second busbar 21 is completed, the installation window 13 can be closed to seal the inside of the installation cavity, thereby ensuring the stability of the internal structure of the installation cavity. In other words, if Figure 1 As shown, by arranging the first bus 11 and the second bus 21 in the installation cavity, the first bus 11 and the second bus 21 are prevented from direct contact with the outside world, thereby avoiding short circuit or leakage, improving the overall safety of the bus assembly 100, and protecting the personal safety of users.

[0032] It should be noted that the position of the connection portion 2112 in the installation cavity is flexibly adjustable. In this way, when the first busbar 11 and the second busbar 21 are installed and fixed, the position of the connection portion 2112 can be flexibly adjusted through the installation window 13, and then the first busbar 11 and the second busbar 21 can be fixed through the connector 3. When the first busbar 11 is provided with a movable connection portion 2112, the position of the connection portion 2112 is adjusted to face the connection position of the second busbar 21, or when the second busbar 21 is provided with a movable connection portion 2112, the position of the connection portion 2112 is adjusted to face the connection position of the first busbar 11. Thus, the specific installation positions of the first busbar 11 and the second busbar 21 are flexibly adjustable. Therefore, it is beneficial to reduce the assembly accuracy requirements of the DCDC module 1 and the stack module 2, and to improve the installation efficiency.

[0033] The busbar assembly 100 of an embodiment of the present invention is configured to have an adjustable position of the connection portion 2112 at the connection between the first busbar 11 and the second busbar 21, so as to facilitate the electrical connection between the DCDC module 1 and the fuel cell stack module 2, thereby reducing the processing accuracy required for the first busbar 11 and the second busbar 21, saving processing costs, and ensuring the connection stability between the DCDC module 1 and the fuel cell stack module 2, reducing the overall space requirement of the busbar assembly 100, achieving a lightweight design, and improving the safety of the busbar assembly 100.

[0034] In some embodiments, the DCDC module 1 and the stack module 2 are respectively provided with a first mounting cavity 12 and a second mounting cavity 22 that are open toward each other. The first mounting cavity 12 and the second mounting cavity 22 are spliced into a mounting cavity. The first busbar 11 is provided in the first mounting cavity 12, and the second busbar 21 is provided in the second mounting cavity 22. The first busbar 11 extends into the second mounting cavity 22 and is connected to the second busbar 21, or the second busbar 21 extends into the first mounting cavity 12 and is connected to the first busbar 11.

[0035] That is to say, if Figure 2 As shown, the DCDC module 1 is provided with a Figure 1 The first installation cavity 12 is opened at the lower side of the first installation cavity 12, and the first bus 11 is arranged in the first installation cavity 12, and the first bus 11 is extended downward as a whole. Figure 3 As shown, the stack module 2 is provided with a Figure 1 The second installation cavity 22 is open (on the upper side of the middle), the second bus bar 21 is arranged in the second installation cavity 22, and the second bus bar 21 is extended upward as a whole.

[0036] It can be understood that when the DCDC module 1 and the battery stack module 2 are installed, the ends of the first bus 11 and the second bus 21 are arranged in parallel, and the length of the first bus 11 can be set to be greater than the height of the first installation cavity 12, so that the first bus 11 can extend into the second installation cavity 22, or the length of the second bus 21 can be set to be greater than the height of the second installation cavity 22, so that the second bus 21 can extend into the second installation cavity 22, so that the sides of the first bus 11 and the second bus 21 facing each other can be fitted and connected, thereby realizing the electrical connection between the DCDC module 1 and the battery stack module 2.

[0037] In some embodiments, the first mounting cavity 12 is provided with an installation window 13, and the second busbar 21 extends into the first mounting cavity 12 to be detachably connected to the first busbar 11 via a connector 3, with the connection position between the second busbar 21 and the first busbar 11 being arranged directly opposite the installation window 13. The connector 3 can be a bolt, and the first busbar 11 and the second busbar 21 are fastened together via the connector 3 to ensure a stable connection between the first busbar 11 and the second busbar 21, thereby enabling the busbar assembly 100 to function properly.

[0038] It should be noted that if Figure 1As shown, the installation window 13 is provided at the side wall of the DCDC module 1, and the installation window 13 is constructed as a rectangular through hole as a whole. By arranging the connection position of the second bus 21 and the first bus 11 to be opposite to the installation window 13, the installation cavity is connected with the outside world, so that the operator can observe the connection position through the installation window 13, and the operator can directly insert the operating tool into the first installation cavity 12 to adjust the first bus 11 and the second bus 21, thereby realizing convenient disassembly and assembly of the first bus 11 and the second bus 21, thereby improving the installation convenience of the DCDC module 1 and the stack module 2.

[0039] In some embodiments, one of the first bus 11 and the second bus 21 is provided with a first connection hole 111, and the other includes a bus assembly 211 and a fixed bus 212, the bus assembly 211 can be movably installed on the fixed bus 212, and the bus assembly 211 is provided with a second connection hole 2113 for connecting to the first connection hole 111.

[0040] That is to say, if Figure 2 and Figure 3 As shown, a first connecting hole 111 can be provided at the first bus 11, and a second connecting hole 2113 can be provided at the bus assembly 211 of the second bus 21, or a first connecting hole 111 can be provided at the second bus 21, and a second connecting hole 2113 can be provided at the bus assembly 211 of the first bus 11, so that the connecting member 3 passes through the first connecting hole 111 and the second connecting hole 2113 in sequence to achieve a fastened connection between the first bus 11 and the second bus 21.

[0041] It can be understood that when the DCDC module 1 and the battery stack module 2 are installed facing each other, the fixed bus 212 always remains stationary. By adjusting the relative position of the bus assembly 211 and the fixed bus 212, the relative position of the first bus 11 and the second bus 21 can be adjusted so that the first bus 11 and the second bus 21 fit together, and the first connection hole 111 and the second connection hole 2113 face each other, and are fixed by the connector 3, thereby achieving convenient connection of the first bus 11 and the second bus 21.

[0042] In some embodiments, as Figure 4 As shown, the busbar assembly 211 includes a mounting portion 2111 and a connecting portion 2112 . The mounting portion 2111 is movably mounted on the fixed busbar 212 along a first direction. The connecting portion 2112 is movably mounted on the mounting portion 2111 along a second direction. A second connecting hole 2113 is provided on the connecting portion 2112 .

[0043] That is to say, the relative position of the mounting portion 2111 and the fixed bus 212 can be adjusted to adjust the relative position of the connecting portion 2112 and the fixed bus 212 along the first direction, thereby adjusting the relative position of the second connecting hole 2113 and the first bus 11. At the same time, the relative position of the mounting portion 2111 and the connecting portion 2112 can be adjusted to adjust the relative position of the second connecting hole 2113 and the first bus 11 along the second direction, thereby achieving flexible adjustment of the second connecting hole 2113, so that the second connecting hole 2113 can be better aligned with the first connecting hole 111, further improving the installation accuracy of the first bus 11 and the second bus 21, and reducing the processing accuracy requirements for the bus assembly 100, thereby saving processing costs.

[0044] Among them, the first direction intersects with the second direction, that is, when the first bus 11 and the second bus 21 are installed, the position of the connecting portion 2112 can be adjusted in two different directions to achieve flexibility in adjusting the position of the connecting portion 2112, which is more conducive to reducing the connection accuracy requirements between the first bus 11 and the second bus 21, and is conducive to improving installation efficiency.

[0045] In some embodiments, the first direction is a direction parallel to the first bus 11, and the second direction is a direction perpendicular to the first bus 11, that is, the first direction and the second direction are perpendicular. In this way, the connecting portion 2112 can be adjusted in a direction perpendicular to the first bus 11, or the connecting portion 2112 can be adjusted in a direction parallel to the first bus 11, thereby realizing the adjustment of the connecting portion 2112 in different directions in space, which is conducive to adjusting the connecting portion 2112 to the target position.

[0046] It should be noted that the height direction of the DCDC module 1 is the same as the height direction of the stack module 2, and both are the same as the extension direction of the first bus 11. The length direction of the DCDC module 1 is the same as the length direction of the stack module 2, and both are perpendicular to the extension direction of the first bus 11. That is, the first direction can be set to extend along the height direction of the DCDC module 1, and the second direction can be set to extend along the length direction of the DCDC module 1, or as shown in FIG. Figure 3 As shown, the second direction may be set to extend along the height direction of the DCDC module 1 , and the first direction may be set to extend along the length direction of the DCDC module 1 .

[0047] Therefore, in the process of adjusting the relative positions of the first bus 11 and the second bus 21, it is ensured that the ends of the first bus 11 and the second bus 21 always remain facing each other, so that after the adjustment is completed, the first bus 11 and the second bus 21 can be fit and connected, and the first connecting hole 111 and the second connecting hole 2113 remain facing each other, which greatly improves the reliability of the adjustment process.

[0048] In some embodiments, the mounting portion 2111 is slidably installed on the fixed bus 212 along the first direction, and the mounting portion 2111 and the fixed bus 212 are positioned and matched by the first limiting member 215, and the connecting portion 2112 is inserted into the mounting portion 2111 along the second direction, and the connecting portion 2112 and the mounting portion 2111 are positioned and matched by the second limiting member 214.

[0049] That is to say, if Figure 3 As shown, the fixed busbar 212 is constructed as a rectangular structure. The fixed busbar 212 is installed at the side wall of the stack module 2 and extends toward the middle position of the second installation cavity 22 along the length direction of the stack module 2. Figure 4 As shown, the lower side of the mounting portion 2111 is constructed as a concave block with an open groove. The inner side walls of the open groove are provided with an inwardly protruding snap-fit structure. The fixed busbar 212 is provided with outwardly open grooves on both sides along the width direction of the stack module 2. The fixed busbar 212 extends into the open groove to cooperate with the mounting portion 2111. The snap-fit structure and the groove cooperate to allow the mounting portion 2111 to slide along the fixed busbar 212. At the same time, the lower side is provided with an opening that passes through the side wall of the open groove. The first limiter 215 can pass through the opening to press against the side wall of the fixed busbar 212 to achieve locking of the fixed busbar 212 and the lower side.

[0050] The upper end of the lower portion is provided with an upper portion, which is constructed as a stepped square column. The lower portion of the upper portion is configured to have the same dimensions as the lower portion, allowing the upper portion to be installed facing the lower portion. It should be noted that the upper portion has a stepped surface, and the corner positions of the stepped surface are each provided with a first locking through-hole extending through the thickness direction. The upper end surface of the lower portion is correspondingly provided with a threaded hole. The fastening bolt 213 can pass through the first locking through-hole from the upper side and extend into the threaded hole of the lower portion, thereby achieving fixation between the upper and lower portions to construct a mounting portion 2111.

[0051] Furthermore, the upper side portion extends upward along the height direction of the stack module 2 as a whole, and a groove structure open upward is provided in the middle portion. The connecting portion 2112 is constructed as a rectangular sheet structure as a whole. The connecting portion 2112 is provided with an inwardly recessed arc groove on both sides along the width direction. The connecting portion 2112 can be inserted into the groove structure of the mounting portion 2111 from the upper side to cooperate with the mounting portion 2111, and the connecting portion 2112 can slide relative to the mounting portion 2111. The arc groove increases the contact area with the mounting portion 2111, thereby improving the stability of the sliding process of the connecting portion 2112. At the same time, the upper side portion of the mounting portion 2111 is provided with a plurality of second locking through holes that pass through in the thickness direction. The second limiting member 214 can pass through the second locking through holes to press against the side of the connecting portion 2112, thereby achieving the positioning and cooperation between the mounting portion 2111 and the connecting portion 2112. Among them, the second limiting member 214 can be taken as a locking nut.

[0052] Through the above-mentioned arrangement, the connecting portion 2112 can slide in the first direction and the second direction respectively for quick adjustment, and after the adjustment is completed, it can be locked by the first limit member 215 and the second limit member 214, so as to maintain stability with the battery stack module 2, thereby achieving convenient installation of the first bus 11 and the second bus 21 while ensuring the stability of the electrical connection.

[0053] In some embodiments, the busbar assembly 100 of the embodiment of the present invention further includes: a sealing cover, which is detachably mounted on the installation window 13, and a first sealing member is provided between the sealing cover and the edge of the installation window 13. Figure 1 As shown, a mounting groove 16 is provided on the side wall of the DCDC module 1 around the mounting window 13, and connecting through holes are provided at the four end corners of the mounting groove 16. An opening is provided at the sealing cover accordingly. The sealing cover can be detachably installed in the mounting groove 16 by sequentially penetrating the opening and the connecting through hole through the connecting component, thereby effectively sealing the mounting window 13.

[0054] It can be understood that by removing the sealing cover in the installation groove 16, the installation cavity can be connected to the outside world, and the operator can then insert the operating tool into the installation cavity to adjust the first bus 11 and the second bus 21, thereby achieving the connection or splitting of the first bus 11 and the second bus 21, and after the connection between the first bus 11 and the second bus 21 is completed, the installation window 13 can be sealed by the sealing cover to prevent external objects from connecting to the first bus 11 and the second bus 21, thereby avoiding leakage and improving the safety of the bus assembly 100.

[0055] It should be noted that a first seal is provided between the sealing cover and the edge of the installation window 13. The first seal can be made of elastic material. By providing the first seal, the sealing of the installation window 13 is effectively improved, preventing external dust and impurities from entering the installation cavity, thereby avoiding the situation where dust accumulation causes increased resistance, and greatly improving the working stability of the bus assembly 100.

[0056] In some embodiments, a sealing groove 24 is defined between the DCDC module 1 and the stack module 2. A second sealing member is disposed within the sealing groove 24. The end faces of the DCDC module 1 and the stack module 2 facing each other are pressed against two sides of the second sealing member. The second sealing member can be made of an elastic material.

[0057] That is to say, if Figure 3 As shown, the sealing groove 24 can be set on the inner side of the upper end surface of the stack module 2. The sealing groove 24 is open to the upper side and the inner side. The second sealing member is constructed as a square ring and can be installed into the sealing groove 24 from above the stack module 2. When the DCDC module 1 is installed on the stack module 2 from the upper side, the lower end surface of the DCDC module 1 presses against the upper side surface of the second sealing member. Under the action of the DCDC module 1's own weight, the second sealing member is firmly fixed between the lower end surface of the DCDC module 1 and the bottom surface of the sealing groove 24, thereby improving the sealing of the busbar assembly 100 and meeting the required dust and water resistance level. It should be noted that the sealing groove 24 can also be set on the inner side of the lower end surface of the DCDC module 1.

[0058] In some embodiments, the DCDC module 1 is provided with a first fixing hole 14, and the battery stack module 2 is provided with a second fixing hole 23. The first fixing hole 14 and the second fixing hole 23 are arranged opposite each other, and the DCDC module 1 and the battery stack module 2 are detachably connected by a fixing member passing through the first fixing hole 14 and the second fixing hole 23.

[0059] Among them, such as Figure 3 As shown, the four corner positions of the upper end surface of the stack module 2 are respectively provided with second fixing holes 23, and the second fixing holes 23 are extended along the height direction of the stack module 2, as shown in FIG. Figure 1 As shown, first mounting holes are provided at the four end corners of the lower end surface of the DCDC module 1, and an inwardly recessed arc-shaped avoidance groove 15 is provided at the side of the DCDC module 1 corresponding to the first mounting hole. The arc-shaped avoidance groove 15 is used to avoid the fixing part and construct the first mounting hole as a through hole.

[0060] That is to say, when the battery stack module 2 and the DCDC module 1 are installed facing each other, the first fixing hole 14 and the second fixing hole 23 are facing each other, and the fixing part can be extended into the arc-shaped avoidance groove 15 to pass through the first fixing hole 14 from top to bottom and extend into the second fixing hole 23, so that the DCDC module 1 can be detachably installed on the upper side of the battery stack module 2.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 understood as limiting the present invention.

[0062] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0063] In the description of the present invention, "plurality" means two or more.

[0064] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0065] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0066] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A busbar assembly (100), characterized in that: include: A DCDC module (1), wherein the DCDC module (1) is provided with a first busbar (11); A battery stack module (2), wherein the battery stack module (2) is provided with a second busbar (21); wherein, The DCDC module (1) and the battery stack module (2) are spliced and connected to define an installation cavity, one of the first busbar (11) and the second busbar (21) is provided with a movable connecting portion (2112), and the other of the first busbar (11) and the second busbar (21) is detachably connected to the connecting portion (2112) in the installation cavity, and the installation cavity has an installation window (13) facing the connecting portion (2112); The first busbar (11) is provided with a first connecting hole (111), and the second busbar (21) comprises a busbar assembly (211) and a fixed busbar (212), the busbar assembly (211) being movably mounted on the fixed busbar (212), and the busbar assembly (211) being provided with a second connecting hole (2113) for connecting with the first connecting hole (111); The busbar assembly (211) comprises a mounting portion (2111) and a connecting portion (2112), wherein the mounting portion (2111) is movably mounted on the fixed busbar (212) along a first direction, and the connecting portion (2112) is movably mounted on the mounting portion (2111) along a second direction, wherein the second connecting hole (2113) is provided on the connecting portion (2112), and the first direction intersects with the second direction.

2. The busbar assembly (100) according to claim 1, characterized in that The DCDC module (1) and the battery stack module (2) are respectively provided with a first installation cavity (12) and a second installation cavity (22) open toward each other, the first installation cavity (12) and the second installation cavity (22) are spliced together to form the installation cavity, the first busbar (11) is provided in the first installation cavity (12), and the second busbar (21) is provided in the second installation cavity (22); wherein, The first busbar (11) extends into the second installation cavity (22) and is connected to the second busbar (21), or the second busbar (21) extends into the first installation cavity (12) and is connected to the first busbar (11).

3. The busbar assembly (100) according to claim 2, characterized in that The first installation cavity (12) is provided with the installation window (13), the second busbar (21) extends into the first installation cavity (12) to be detachably connected to the first busbar (11) via a connector (3), and the connection position of the second busbar (21) and the first busbar (11) is arranged opposite to the installation window (13).

4. The busbar assembly (100) according to claim 1, characterized in that The first direction is a direction parallel to the first busbar (11), and the second direction is a direction perpendicular to the first busbar (11).

5. The busbar assembly (100) according to claim 1, characterized in that The mounting portion (2111) is slidably mounted on the fixed busbar (212) along a first direction, and the mounting portion (2111) and the fixed busbar (212) are positioned and matched via a first limiting member (215); The connecting portion (2112) is plugged into the mounting portion (2111) along the second direction, and the connecting portion (2112) and the mounting portion (2111) are positioned and matched via a second limiting member (214).

6. The busbar assembly (100) according to any one of claims 1 to 3, characterized in that: Also includes: A sealing cover is detachably mounted on the installation window (13), and a first sealing member is provided between the sealing cover and the edge of the installation window (13).

7. The busbar assembly (100) according to any one of claims 1 to 3, characterized in that: A sealing groove (24) is defined between the DCDC module (1) and the stack module (2), a second sealing member is provided in the sealing groove (24), and the end faces of the DCDC module (1) and the stack module (2) facing each other are respectively pressed against two sides of the second sealing member.

8. The busbar assembly (100) according to any one of claims 1 to 3, characterized in that: The DCDC module (1) is provided with a first fixing hole (14), and the battery stack module (2) is provided with a second fixing hole (23), the first fixing hole (14) and the second fixing hole (23) are arranged opposite each other, and the DCDC module (1) and the battery stack module (2) are detachably connected via a fixing piece that passes through the first fixing hole (14) and the second fixing hole (23).

Images