An output pole support base and a support base mounting structure

Abstract

The utility model relates to the technical field of electric energy storage, specifically discloses an output pole support seat and support seat mounting structure, which comprises: an insulating base, a gasket accommodating cavity, an opening is arranged at one end of the gasket accommodating cavity along a first direction; a top cover connected to the insulating base and covering the opening of the gasket accommodating cavity along the first direction; wherein the width size of the top cover is smaller than the width size of the insulating base, so that the opening part of the gasket accommodating cavity is exposed to form a gasket through hole, the gasket through hole is used for passing the output gasket, and the first direction is the height direction of the insulating base. The output pole support seat and support seat mounting structure can effectively solve the problem that the existing support seat has poor shape size adaptability to the output gasket and is prone to failure to be smoothly buckled due to size and shape deviation.

Description

Technical Field

[0001] This utility model relates to the field of electrical energy storage technology, and in particular to an output electrode support base and a support base mounting structure. Background Technology

[0002] In the production of lithium-ion batteries, a busbar is used to connect the positive and negative terminals of multiple individual cells in series and parallel, and finally lead out a total positive output busbar and a total negative output busbar.

[0003] See Figure 1 The output bar 4 and the high voltage busbar 3 are fixed to the fastening nut inside the support base by bolts, and the fixed output bar 4 is electrically connected to the battery management system (BDU) through the high voltage busbar 3.

[0004] The support includes an insulating base 101 and a top cover 102 fixed to the top of the insulating base 101; the insulating base 101 is provided with a bar opening 1012 for the output bar 4 to extend into near the top cover 102.

[0005] In actual production, the actual dimensions of each component inevitably have dimensional deviations. For example, when the thickness of the output bar 4 and / or the insulating base 101 is too large, the output bar 4 and the insulating base 101 may be unable to be assembled smoothly due to interference.

[0006] Theoretically, a certain external force can be applied to the output bar 4 at this time, causing the end of the output bar 4 that extends into the insulating base 101 to deform appropriately outward or inward, so as to smoothly assemble with the fastening nut. However, in the existing support, the top cover 102 usually extends directly above the output bar 4. Therefore, the height of the bar opening 1012 is very small, just enough for the output bar 4, whose shape and size perfectly meet the design standards, to pass through. When the output bar 4 deforms, it will push against the top cover 102 upward, causing the top cover 102 to fail to fasten smoothly to the top of the insulating base 101.

[0007] Therefore, the existing support needs to be improved to solve the problem that it is not adaptable to the shape and size of the output bar and is prone to failure to snap into place due to size and shape deviations.

[0008] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0009] One objective of this invention is to provide an output electrode support base and a support base mounting structure, which can effectively solve the problem that existing support bases have poor adaptability to the shape and size of the output electrode plate and are prone to failure to be properly fastened due to size and shape deviations.

[0010] To achieve the above objectives, this utility model provides an output pole support base, comprising:

[0011] An insulating base includes a barplate receiving cavity, wherein one end of the barplate receiving cavity has an opening along a first direction;

[0012] A top cover is attached to the insulating base and covers the opening of the barbiturate receiving cavity along the first direction;

[0013] The width of the top cover is smaller than the width of the insulating base, so that the opening of the bar plate receiving cavity is exposed to form a bar plate through-hole, which is used for output bar plates to pass through. The first direction is the height direction of the insulating base.

[0014] Optionally, the top cover is recessed on the side near the slab opening in a direction away from the slab opening to form a clearance notch that communicates with the slab opening and avoids the output slab.

[0015] Optionally, the top cover has a counterweight portion protruding in a direction away from the avoidance gap at the end face of its length direction corresponding to the position of the avoidance gap.

[0016] Optionally, the top cover has a pivot portion that is rotatably connected to the insulating base on the side away from the clearance notch; the top cover has a hook portion that extends downward and engages with the insulating base; the insulating base has a slot for the hook portion to engage.

[0017] The hook portion is disposed between the counterweight portion and the rotating shaft portion along the width direction of the top cover.

[0018] Optionally, the insulating base has a conductive busbar through-hole on the side away from the bar plate through-hole for the high-voltage conductive busbar to pass through;

[0019] The conductive outlet is recessed in a direction away from the top cover.

[0020] On the other hand, a support mounting structure is provided, characterized in that it includes:

[0021] Any of the aforementioned output electrode support bases;

[0022] The box beam is provided with a support positioning groove that is adapted to the output pole support seat, and the output pole support seat is snapped into the support positioning groove.

[0023] Optionally, the support base positioning groove includes:

[0024] An inner baffle extends along the first direction near the side of the electrode opening to restrict the output electrode support from passing through the inner baffle along the thickness direction of the housing beam.

[0025] Optionally, the insulating base has an inner positioning boss on the surface near the inner baffle;

[0026] The inner baffle is provided with an inner limiting groove for the inner positioning boss to be inserted into, corresponding to the position of the inner positioning boss.

[0027] Optionally, the support base positioning groove is provided with an outer baffle on the side away from the inner baffle; the inner positioning boss is connected to an elastic arm in the direction away from the inner limiting groove, and the end of the elastic arm away from the inner positioning boss is provided with an inclined upward stop.

[0028] When the inner positioning boss is inserted into the inner limiting groove, the stop part abuts against the inner side of the outer baffle to restrict the output pole support from disengaging from the support positioning groove in a direction away from the inner baffle.

[0029] Optional,

[0030] The outer side baffle is provided with an outer limiting groove below which the inner side positioning boss, the elastic arm, and the stop portion pass through.

[0031] The insulating base has an outer limiting boss on the side away from the inner positioning boss, and the outer limiting boss is embedded in the outer limiting groove to achieve positioning and engagement.

[0032] The beneficial effects of this utility model are as follows: It provides an output pole support base and a support base mounting structure. Through the partially exposed opening design, it provides additional deformation space for the output pole plate, so that it can be appropriately shaped during assembly, avoiding the situation where it pushes upward against the top cover, causing the top cover to be unable to be fastened.

[0033] The exposed top opening effectively increases the height of the sprue opening, thereby reducing the stringent requirements for component dimensional accuracy.

[0034] Therefore, the output pole support base and support base installation structure provided by this utility model can effectively solve the problem that the existing support base has poor adaptability to the shape and size of the output pole plate and is prone to failure to be fastened smoothly due to size and shape deviation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of an existing support base is provided for the background art;

[0037] Figure 2 A schematic diagram of the rear structure of the support mounting structure provided in the embodiment;

[0038] Figure 3 A front view of the support mounting structure provided in the embodiment;

[0039] Figure 4 An exploded view of the support mounting structure provided in the embodiment.

[0040] In the picture:

[0041] 1. Output pole support base;

[0042] 101. Insulating base; 1011. Bar plate receiving cavity; 1012. Bar plate through-hole; 1013. Slot; 1014. Conductive busbar through-hole; 1015. Inner positioning boss; 1016. Elastic arm; 1017. Stop part; 1018. Outer limiting boss;

[0043] 102. Top cover; 1021. Clearance notch; 1022. Counterweight; 1023. Rotating shaft; 1024. Hook;

[0044] 2. Box body crossbeam; 201. Support seat positioning groove; 202. Inner baffle; 2021. Inner limiting groove; 203. Outer baffle; 204. Outer limiting groove;

[0045] 3. High-voltage busbar.

[0046] 4. Output bar film. Detailed Implementation

[0047] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0048] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0049] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0050] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0051] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0052] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0053] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0054] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0055] The output pole support base and support base mounting structure provided by this utility model cleverly solve the assembly problem caused by dimensional deviation in the prior art by designing the width of the top cover to be smaller than the width of the insulating base, so that the top opening of the plate receiving cavity is exposed.

[0056] See Figures 1-3 In this embodiment, the support mounting structure includes an output pole support 1 and a housing beam 2. The top of the housing beam 2 is provided with a support positioning groove 201 that matches the output pole support 1. Optionally, the support positioning groove 201 allows the output pole support 1 to be inserted laterally. Through the lateral insertion and engagement of the support positioning groove 201 on the housing beam 2 with the output pole support 1, rapid positioning and installation of the support is achieved, eliminating the alignment process required for traditional bolt fixing.

[0057] First, see Figure 1 and Figure 2 The specific structure of the output pole support 1 will be described in detail.

[0058] The output electrode support 1 provided by this utility model includes an insulating base 101 and a top cover 102. The insulating base 101 is provided with a tab receiving cavity 1011, and the tab receiving cavity 1011 has an opening at one end along a first direction, the first direction being the height direction of the insulating base 101; the top cover 102 is connected to the insulating base 101 and covers the opening of the tab receiving cavity 1011 along the first direction;

[0059] The width d1 of the top cover 102 is smaller than the width d2 of the insulating base 101, so that the top opening of the bar plate receiving cavity 1011 is partially exposed to form a bar plate through-hole 1012, which is used for output bar plates to pass through.

[0060] It should be noted that the width dimensions of the top cover 102 and the insulating base 101 mentioned in this embodiment refer to the horizontal dimensions parallel to the thickness direction of the box beam 2.

[0061] In traditional designs, the top cover 102 completely covers the output electrode opening 1012. This makes it easy for the output electrode to interfere with the top cover 102 and fail to engage properly if adjustments are needed during assembly due to thickness tolerances or deformation. However, the output electrode support 1 provided by this invention, through a partially exposed opening design, provides additional deformation space for the output electrode, allowing for appropriate shape adjustments during assembly and preventing it from pressing against the top cover 102 and thus failing to engage.

[0062] This structural optimization not only accommodates the dimensional tolerances of the output bar or insulating base 101, allowing for a certain range of thickness deviations or bending deformations, but also simplifies the assembly process, enabling assembly to be completed without manual forced correction, significantly improving production efficiency and yield.

[0063] Specifically, when the output battery pad needs to be slightly expanded or contracted due to manufacturing tolerances, its deformed portion can release stress through the exposed opening area without hindering the fastening of the top cover 102. Simultaneously, the partial exposure of the top opening effectively increases the height of the battery pad through-hole 1012, further reducing the stringent requirements for component dimensional accuracy. This design optimizes the assembly process with simple structural improvements while ensuring structural strength and electrical safety, making it particularly suitable for the needs of tolerance compatibility and assembly efficiency in large-scale battery pack production.

[0064] In this embodiment, the top cover 102 is recessed on the side near the tab opening 1012, moving away from the tab opening 1012, to form a clearance notch 1021 that communicates with the tab opening 1012 and avoids the output tab. By providing the clearance notch 1021 on the side of the top cover 102 near the tab opening 1012, additional lateral clearance space is provided for the output tab. When the output tab needs to be laterally offset due to assembly tolerances, its deformed portion can naturally extend through the clearance notch 1021 without interfering with the top cover 102, further reducing the requirements for tab position accuracy during assembly and avoiding the risk of component damage caused by forced assembly.

[0065] Optionally, the top cover 102, along its length, has a counterweight 1022 protruding away from the clearance notch 1021 at its end face corresponding to the clearance notch 1021. By providing the counterweight 1022 on the opposite side of the clearance notch 1021, the uneven mass distribution of the top cover 102 caused by the single-sided opening is effectively balanced, preventing the cover from swaying under vibration and improving the overall structural stability. Simultaneously, the protruding design of the counterweight 1022 also enhances the structural strength of the cover's edge, extending its service life.

[0066] In this embodiment, the top cover 102 has a pivot portion 1023 rotatably connected to the insulating base 101 on the side away from the clearance notch 1021; the top cover 102 has a hook portion 1024 extending downward and engaging with the insulating base 101 at its center; the insulating base 101 has a slot 1013 for the hook portion 1024 to engage. The hook portion 1024 is positioned between the counterweight portion 1022 and the pivot portion 1023 along the width direction of the top cover 102.

[0067] The use of a fastening structure with a rotating shaft 1023 and a hook 1024 enables the top cover 102 to be opened by rotation on one side and locked in the middle. This facilitates the observation and adjustment of the position of the plate during assembly, and the rigid connection between the hook 1024 and the slot 1013 ensures the stability of the final assembly. This semi-automatic fastening method significantly improves assembly efficiency compared to traditional bolt fixing.

[0068] Optionally, the insulating base 101 has a conductive bar through-hole 1014 on the side away from the output bar through-hole 1012 for the high-voltage conductive bar to pass through. The conductive bar through-hole 1014 is recessed in the direction away from the top cover 102. The design of adding the conductive bar through-hole 1014 to the insulating base 101 allows the high-voltage conductive bar and the output bar to enter the output pole support 1 from different paths, avoiding wiring interference between the two in the limited space. At the same time, it provides an independent positioning reference for the conductive bar, ensuring accurate alignment of the electrical connection parts and reducing the risk of excessive contact resistance.

[0069] Next, combined Figure 3 The assembly details of the output pole support 1 and the housing crossbeam 2 will be introduced.

[0070] In this embodiment, an inner baffle 202 is provided on the side of the support base positioning groove 201 near the tab insertion port 1012. The inner baffle 202 extends along the first direction on the side near the tab insertion port 1012 to restrict the output pole support 1 from passing through the inner baffle 202 of the support base positioning groove 201 along the thickness direction of the housing beam 2.

[0071] The insulating base 101 has an inner positioning boss 1015 on its surface near the inner baffle 202; the inner baffle 202 has an inner limiting groove 2021 for the inner positioning boss 1015 to be inserted into at the position corresponding to the inner positioning boss 1015.

[0072] Optionally, the support base positioning groove 201 is provided with an outer baffle 203 on the side away from the inner baffle 202; the inner positioning boss 1015 is connected to an elastic arm 1016 in the direction away from the inner limiting groove 2021, and the end of the elastic arm 1016 away from the inner positioning boss 1015 is provided with an inclined upward stop part 1017.

[0073] When the inner positioning boss 1015 is inserted into the inner limiting groove 2021, the stop part 1017 abuts against the inner side of the outer baffle 203 to restrict the output pole support 1 from disengaging from the support positioning groove 201 in a direction away from the inner baffle 202.

[0074] Furthermore, an outer limiting groove 204 is provided below the outer baffle 203 for the inner positioning boss 1015, the elastic arm 1016, and the stop part 1017 to pass through.

[0075] The insulating base 101 has an outer limiting boss 1018 on the side away from the inner positioning boss 1015. The outer limiting boss 1018 is embedded in the outer limiting groove 204 to achieve positioning engagement.

[0076] The assembly process of the support base mounting structure provided in this embodiment is as follows:

[0077] 1. Initial positioning phase

[0078] Before assembly, the output pole support 1 (including the insulating base 101 and the top cover 102) is kept relatively horizontally aligned with the support positioning groove 201 on the box beam 2.

[0079] 2. Initial Loading Phase

[0080] During assembly, the operator inserts the output pole support 1 into the support positioning groove 201 in the horizontal direction;

[0081] When no downward pressure is applied to the elastic arm 1016, the stop 1017 is higher than the outer baffle 203. During the process of inserting the output pole support 1 into the support positioning groove 201, the inner positioning boss 1015 and the elastic arm 1016 can pass smoothly through the outer limiting groove 204. When the stop 1017 passes through the outer limiting groove 204, the outer baffle 203 pushes down against the stop 1017, forcing the elastic arm 1016 to deform downward so that the stop 1017 can pass smoothly through the outer limiting groove 204.

[0082] 3. Final loading stage

[0083] After the stop 1017 has completely passed through the outer limiting groove 204, the elastic arm 1016 returns to its original deformation, and the stop 1017 is higher than the outer baffle 203. At this time:

[0084] On the one hand, the inner positioning boss 1015 is inserted into the inner limiting groove 2021 and the outer limiting boss 1018 is embedded in the outer limiting groove 204, thereby realizing the limiting of the output pole support seat 1 in the vertical direction (height direction of the box beam 2) and the horizontal direction (length direction of the box beam 2).

[0085] On the other hand, the stop portion 1017 abuts against the inner side of the outer baffle 203, thereby restricting the output pole support 1 from disengaging from the support positioning groove 201 in a direction away from the inner baffle 202, thereby achieving the limitation of the output pole support 1 in the front-back direction (thickness direction of the box beam 2).

[0086] In summary, the output pole support 1 and the support mounting structure provided in this embodiment have the following advantages:

[0087] ① Tolerance compatibility optimization: The design of partially exposed 1012 slab openings allows for deformation adjustment of the output slab within tolerance range, avoiding assembly interference.

[0088] ② Enhanced lateral clearance: The clearance notch 1021 provides lateral displacement space, reducing the requirements for the positional accuracy of the flaps and reducing the risk of forced assembly.

[0089] ③ Improved structural balance: The counterweight 1022 balances the uneven mass distribution caused by the notch 1021, enhancing vibration stability and edge strength.

[0090] ④ Quick positioning and installation: The support seat positioning groove 201 is designed for horizontal insertion, eliminating the bolt alignment process and enabling quick positioning of the support seat.

[0091] ⑤ Reliable anti-detachment limit: The elastic arm 1016 cooperates with the stop part 1017 to limit the forward and backward displacement through deformation self-locking, ensuring the stability of the installation.

[0092] ⑥ Multi-directional limiting integration: The inner / outer limiting groove 204 works in conjunction with the boss to simultaneously constrain displacement in the up-down, left-right and front-back directions.

[0093] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. An output electrode support base, characterized in that, include: An insulating base (101) includes a barplate receiving cavity (1011), wherein one end of the barplate receiving cavity (1011) is provided with an opening along a first direction; A top cover (102) is attached to the insulating base (101) and covers the opening of the barbiturate receiving cavity (1011) along the first direction; The width of the top cover (102) is smaller than that of the insulating base (101), so that the opening of the bar plate receiving cavity (1011) is exposed to form a bar plate through-hole (1012), which is used for the output bar plate (4) to pass through, and the first direction is the height direction of the insulating base (101).

2. The output electrode support according to claim 1, characterized in that, The top cover (102) is recessed on the side near the slab opening (1012) away from the slab opening (1012) to form a clearance notch (1021) that communicates with the slab opening (1012) and avoids the output slab (4).

3. The output electrode support according to claim 2, characterized in that, The top cover (102) has a counterweight (1022) that protrudes in a direction away from the avoidance gap (1021) at the end face of the cover (1021) along its length direction.

4. The output electrode support according to claim 3, characterized in that, The top cover (102) has a pivot (1023) on the side away from the clearance notch (1021) that is rotatably connected to the insulating base (101); the top cover (102) has a hook (1024) that extends downward and engages with the insulating base (101); the insulating base (101) has a slot (1013) into which the hook (1024) engages. The hook portion (1024) is disposed between the counterweight portion (1022) and the pivot portion (1023) along the width direction of the top cover (102).

5. The output electrode support according to claim 1, characterized in that, The insulating base (101) has a conductive busbar opening (1014) on the side away from the bar plate opening (1012) for the high voltage conductive busbar (3) to pass through. The conductive outlet (1014) is recessed in a direction away from the top cover (102).

6. A support mounting structure, characterized in that, include: The output pole support (1) as described in any one of claims 1-5; The box beam (2) is provided with a support positioning groove (201) that is adapted to the output pole support (1), and the output pole support (1) is snapped into the support positioning groove (201).

7. The support mounting structure according to claim 6, characterized in that, The support base positioning groove (201) includes: The inner baffle (202) extends along the first direction near the side of the bar plate opening (1012) to restrict the output pole support (1) from passing through the inner baffle (202) along the thickness direction of the box beam (2).

8. The support mounting structure according to claim 7, characterized in that, The insulating base (101) has an inner positioning boss (1015) on the surface near the inner baffle (202). The inner baffle (202) is provided with an inner limiting groove (2021) for the inner positioning boss (1015) to be inserted at the position corresponding to the inner positioning boss (1015).

9. The support mounting structure according to claim 8, characterized in that, The support base positioning groove (201) is provided with an outer baffle (203) on the side away from the inner baffle (202); the inner positioning boss (1015) is connected to an elastic arm (1016) in the direction away from the inner limiting groove (2021), and the end of the elastic arm (1016) away from the inner positioning boss (1015) is provided with an inclined upward stop (1017). When the inner positioning boss (1015) is inserted into the inner limiting groove (2021), the stop (1017) abuts against the inner side of the outer baffle (203) to restrict the output pole support (1) from disengaging from the support positioning groove (201) in a direction away from the inner baffle (202).

10. The support mounting structure according to claim 9, characterized in that, The outer side baffle (203) is provided with an outer limiting groove (204) for the inner side positioning boss (1015), the elastic arm (1016), and the stop part (1017) to pass through. The insulating base (101) has an outer limiting boss (1018) on the side away from the inner positioning boss (1015), and the outer limiting boss (1018) is embedded in the outer limiting groove (204) to achieve positioning and engagement.

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