An output pole support base and a support base mounting structure

Abstract

This utility model relates to battery manufacturing, specifically disclosing an output electrode support and its mounting structure, comprising: a support body; an elastic arm fixedly disposed on the lower part of the side of the support body, for abutting against the inner wall of the positioning groove after the support body is inserted into it, thereby preventing the support body from being pulled out laterally from the positioning groove; and an anti-jump boss fixedly disposed on the upper part of the side of the support body, for abutting against the top wall of the positioning groove after the support body is inserted into it, thereby preventing vertical relative movement between the support body and the battery housing. The output electrode support and its mounting structure provided by this utility model effectively solve the problem of poor vibration resistance in existing output electrode supports.

Description

Technical Field

[0001] This utility model relates to battery manufacturing, and more particularly to an output electrode support base and a support base mounting structure. Background Technology

[0002] In lithium-ion battery production, busbars are used to connect the positive and negative terminals of multiple individual cells in series and parallel, ultimately leading to a total positive output busbar and a total negative output busbar. The output busbars are electrically connected to a high-voltage copper busbar via output terminal support bases, and then to other devices such as the battery management system (BDU) via the high-voltage copper busbar to achieve charge and discharge management of each individual cell.

[0003] As an important structural component connecting the output pole plate and the high-voltage copper busbar, the way the output pole support is fixed directly affects the stability and safety of the electrical connection.

[0004] Generally, the output terminal support is equipped with an elastic arm, which is fixed to the crossbeam of the battery box by the elastic restoring force of the elastic arm. Although this method has the advantage of simple assembly, in actual vehicle operation, lithium-ion batteries are constantly exposed to a complex vibration environment, which can easily cause the elastic arm to undergo plastic deformation or fatigue loosening due to repeated pressure, eventually resulting in the output terminal support becoming loose.

[0005] Therefore, it is necessary to improve the existing output pole support to solve the problem of its poor vibration resistance.

[0006] 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

[0007] One objective of this invention is to provide an output pole support base and a support base mounting structure that can effectively solve the problem of poor vibration resistance of existing output pole support bases.

[0008] To achieve the above objectives, this utility model provides an output terminal support base for laterally inserting into a support base positioning groove in a battery housing, comprising:

[0009] Support body;

[0010] An elastic arm is fixed to the lower part of the side of the support body and is used to abut against the inner wall of the support positioning groove after the support body is inserted into the support positioning groove, so as to restrict the support body from being pulled out of the support positioning groove laterally.

[0011] An anti-jumping boss is fixed to the upper part of the side of the support body and is used to abut against the top wall of the support positioning groove after the support body is inserted into the support positioning groove, so as to restrict the vertical relative movement between the support body and the battery box.

[0012] Optionally, the elastic arm includes:

[0013] A positioning boss is fixed to the side of the support body.

[0014] The elastic part has one end fixedly connected to the positioning boss and the other end extending along the pull-out direction of the output pole support.

[0015] A stop portion is fixed to the other end of the elastic portion and is used to abut against the inner sidewall of the positioning groove of the support seat.

[0016] Optionally, the stop portion extends obliquely upward along the pull-out direction of the output pole support to protrude from the anti-jump boss.

[0017] Optionally, the top surface of the anti-jump boss is a horizontal rectangular surface.

[0018] Optionally, the support body includes:

[0019] An insulating base, wherein the insulating base has an upward-facing electrical contact cavity;

[0020] A top cover, one side of which is rotatably mounted on the top of the insulating base to cover the opening of the electrical cavity;

[0021] The upper part of the insulating base is provided with a hook plate groove, and the top cover is provided with a cover hook plate that engages with the hook plate groove.

[0022] Optionally, the inner wall of the insulating base is provided with a thinning groove to accommodate the cover hook plate, and the hook plate fastening groove is located at the thinning groove.

[0023] Optionally, an electrical connection nut is fixedly provided at the bottom of the electrical connection cavity;

[0024] The insulating base has an outwardly protruding thickened portion at a position opposite to the circumferential surface of the electrical nut, so as to completely cover the electrical nut.

[0025] Optionally, the other side of the top cover is provided with an outwardly protruding counterweight boss.

[0026] On the other hand, a support mounting structure is provided, including:

[0027] The battery housing has a support base positioning groove and a positioning groove insertion port located on the side of the support base positioning groove.

[0028] The output electrode support is installed and fixed in the positioning groove of the support via the positioning groove insertion port.

[0029] Optionally, the edge of the positioning slot insertion port is provided with a spring arm window for the elastic arm to pass through and a boss window for the anti-jump boss to pass through.

[0030] The protruding window extends along the insertion direction of the output electrode support to directly above one end of the elastic arm near the inner sidewall of the support positioning groove.

[0031] The beneficial effects of this utility model are as follows: It provides an output pole support base and a support base mounting structure, and the specific installation steps are as follows:

[0032] S10: Initial alignment and insertion: The operator aligns the main body of the output pole support with the entrance of the pre-drilled support positioning slot on the battery box, and applies a thrust in the horizontal direction (i.e., laterally) to insert the main body of the support into the support positioning slot.

[0033] S20: Compression and Passage of the Elastic Arm: During insertion, the elastic arm located on the lower side of the support body will first come into contact with and be compressed by the entrance of the support positioning groove. Due to the elasticity of the elastic arm itself, it will undergo elastic deformation under this pressure, thereby allowing the support body to pass smoothly through the relatively narrow entrance of the support positioning groove.

[0034] S30: Elastic Arm Restoration and Horizontal Locking: When the support body is inserted to the predetermined depth, the elastic arm moves into the support positioning groove. The internal space of the support positioning groove is relatively large. At this point, the compressive force applied to the elastic arm disappears, and the elastic arm, relying on the elastic restoring force of its material, quickly opens outward and rebounds, causing its outer surface to tightly press against the inner wall of the support positioning groove. This effectively restricts the support body from being pulled out of the support positioning groove in the horizontal direction, achieving horizontal locking.

[0035] S40: Vertical locking of the anti-jump boss: As the support body reaches its final installation position, the anti-jump boss located on its upper side also moves to the bottom of the top wall of the support positioning groove. The upper surface of the anti-jump boss contacts and abuts against the top wall of the support positioning groove. This structure prevents the support body from moving upward, effectively limiting the relative movement between the support body and the battery box in the vertical direction, and preventing the output terminal support from jumping upward due to vibration.

[0036] In summary, the output pole support, through the synergistic effect of its elastic arm and anti-jump boss, restricts the relative movement between the support body and the battery box in both the horizontal and vertical directions after being horizontally inserted into the support positioning slot, thereby achieving a stable and reliable installation and significantly improving its vibration resistance. Attached Figure Description

[0037] 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.

[0038] Figure 1 A schematic diagram of the support mounting structure provided in the embodiment;

[0039] Figure 2 A schematic diagram of the output electrode support provided in the embodiment.

[0040] In the picture:

[0041] 1. Main body of the support base;

[0042] 101. Insulating base; 1011. Electrical connection cavity; 1012. Hook plate groove; 1013. Thinning groove; 1014. Thickening section;

[0043] 102. Top cover; 1021. Cover hook plate; 1022. Counterweight boss;

[0044] 103. Electrical connection nut;

[0045] 2. Flexible arm; 201. Positioning boss; 202. Flexible part; 203. Stop part;

[0046] 3. Anti-jumping boss;

[0047] 4. Battery housing; 401. Support base positioning groove; 402. Positioning groove insertion port; 4021. Spring arm window; 4022. Boss window. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] This utility model provides an output pole support base and a support base mounting structure, which can effectively solve the problem of poor vibration resistance of existing output pole support bases.

[0057] See Figure 1 In this embodiment, the support mounting structure includes a battery box 4 and an output terminal support.

[0058] The battery housing 4 is provided with a support base positioning groove 401 and a positioning groove insertion port 402 located on the side of the support base positioning groove 401; the output pole support is installed and fixed in the support base positioning groove 401 through the positioning groove insertion port 402.

[0059] Further, see Figure 2 The output pole support is used to be horizontally inserted into the support positioning groove 401 of the battery box 4, and specifically includes the support body 1, the elastic arm 2, and the anti-jump boss 3.

[0060] The elastic arm 2 is fixed to the lower part of the side of the support body 1, and is used to abut against the inner wall of the support positioning groove 401 after the support body 1 is inserted into the support positioning groove 401, so as to restrict the support body 1 from being pulled out of the support positioning groove 401 laterally.

[0061] The anti-jumping boss 3 is fixed to the upper part of the side of the support body 1, and is used to abut against the top wall of the support positioning groove 401 after the support body 1 is inserted into the support positioning groove 401, so as to restrict the vertical relative movement between the support body 1 and the battery box 4.

[0062] The specific installation steps of the support base mounting structure provided by this utility model are as follows:

[0063] S10: Initial Alignment and Insertion: The operator aligns the support body 1 of the output terminal support with the entrance of the pre-drilled support positioning groove 401 on the battery box 4, and applies a pushing force in the horizontal direction (i.e., laterally) to insert the support body 1 into the support positioning groove 401. The output terminal support can be installed on the crossbeam of the battery box 4, in which case the support positioning groove 401 can be formed on the side wall of the crossbeam of the battery box 4 to save space within the battery box 4 and improve space utilization. The output terminal support can also be installed in other parts of the battery box 4, such as the longitudinal beams or frame of the battery box 4; this application does not impose any restrictions.

[0064] S20: Compression and passage of elastic arm 2: During insertion, the elastic arm 2, located on the lower side of the support body 1, will first contact and be compressed with the entrance of the support positioning groove 401. Because the elastic arm 2 is elastic, it will undergo elastic deformation under this pressure, allowing the support body 1 to pass smoothly through the relatively narrow entrance of the support positioning groove 401. Simultaneously, due to the action of the elastic arm 2, the support body 1 can be accurately inserted into the support positioning groove 401, avoiding displacement.

[0065] S30: Restoration and Horizontal Locking of Elastic Arm 2: When the support body 1 is inserted to the predetermined depth, the elastic arm 2 moves into the support positioning groove 401. The internal space of the support positioning groove 401 is relatively large. At this time, the compressive force applied to the elastic arm 2 disappears, and the elastic arm 2 quickly opens outward and rebounds due to the elastic restoring force of its material, so that its outer surface tightly abuts against the inner wall of the support positioning groove 401, thereby effectively restricting the support body 1 from being pulled out of the support positioning groove 401 in the horizontal direction, and achieving horizontal locking.

[0066] S40: Vertical locking of the anti-jump boss 3: As the support body 1 reaches its final installation position, the anti-jump boss 3 located on its upper side also moves to the bottom of the top wall of the support positioning groove 401. The upper surface of the anti-jump boss 3 contacts and abuts against the top wall of the support positioning groove 401. This structure prevents the support body 1 from moving upward, thus effectively limiting the relative movement between the support body 1 and the battery box 4 in the vertical direction, preventing the output pole support from jumping upward due to vibration.

[0067] In summary, the output pole support, through the synergistic effect of its elastic arm 2 and anti-jump boss 3, restricts the relative movement between the support body 1 and the battery box 4 in both the horizontal and vertical directions after being horizontally inserted into the support positioning groove 401. This achieves a stable and reliable installation, significantly improves its vibration resistance, and solves the problem of poor vibration resistance of existing output pole support. It also reduces the wear of the output pole support and improves its overall service life.

[0068] In this embodiment, the elastic arm 2 includes a positioning boss 201, an elastic part 202, and a stop part 203. The positioning boss 201 is fixed to the side of the support body 1; one end of the elastic part 202 is fixed to the positioning boss 201, and the other end extends along the pull-out direction of the output pole support; the stop part 203 is fixed to the other end of the elastic part 202 and is used to abut against the inner sidewall of the support positioning groove 401.

[0069] Accordingly, the edge of the positioning slot insertion port 402 is provided with a spring arm window 4021 for the elastic arm 2 to pass through, and a boss window 4022 for the anti-jump boss 3 to pass through.

[0070] The boss window 4022 extends along the insertion direction of the output pole support to the end of the elastic arm 2 that is close to the inner sidewall of the support positioning groove 401 (i.e., the stop part 203).

[0071] During insertion, the elastic arm 2 enters the support positioning groove 401 through the elastic arm window 4021, and the anti-jump boss 3 enters through the boss window 4022. The boss window 4022 extends along the insertion direction of the output pole support until it reaches directly above the stop portion 203 of the elastic arm 2. There is no obstruction directly above the stop portion 203, so when disassembly is required, a tool is used to press the stop portion 203 downward through the boss window 4022 to deform the elastic arm 2, allowing the output pole support to be pulled out.

[0072] Understandably, during the insertion process, the elastic part 202 undergoes elastic deformation, allowing the support body 1 to smoothly insert into the support positioning groove 401. After insertion, the elastic part 202 returns to its original shape, causing the stop part 203 to abut against the inner wall of the support positioning groove 401, forming a stop. The design of the elastic arm 2 ensures close contact between the stop part 203 and the inner wall of the support positioning groove 401, enhancing the anti-pull-out effect.

[0073] Furthermore, the stop portion 203 extends obliquely upward along the pull-out direction of the output electrode support seat, protruding beyond the anti-jump boss 3. During installation, the oblique design of the stop portion 203 facilitates its sliding into the inner wall of the support seat positioning groove 401; during disassembly, because the stop portion 203 protrudes beyond the anti-jump boss 3, it can be pressed downward from above using a tool, causing the elastic portion 202 to deform and thus releasing the stop. The oblique and protruding design of the stop portion 203 simplifies the guiding function during installation, facilitates disassembly, improves maintenance efficiency, and does not affect the vertical limiting function of the anti-jump boss 3.

[0074] Optionally, the top surface of the anti-jump boss 3 is a horizontal rectangular surface. After the support body 1 is inserted, the horizontal top surface of the anti-jump boss 3 contacts the top wall surface of the support positioning groove 401, forming a stable support. The horizontal rectangular surface increases the contact area between the anti-jump boss 3 and the top wall of the support positioning groove 401, improving the stability and uniformity of vertical limiting, reducing stress concentration, and enhancing vibration resistance.

[0075] In this embodiment, the support body 1 includes an insulating base 101 and a top cover 102. The insulating base 101 has an upward-facing electrical receiving cavity 1011; one side of the top cover 102 is rotatably mounted on the top of the insulating base 101 to cover the opening of the electrical receiving cavity 1011; wherein, the upper part of the insulating base 101 is provided with a hook plate groove 1012, and the top cover 102 is provided with a cover hook plate 1021 that engages with the hook plate groove 1012.

[0076] When the top cover 102 is closed, the cover hook plate 1021 engages with the hook plate slot 1012, fixing the cover position. The rotating design of the top cover 102 facilitates the opening and closing of the electrical connection cavity 1011, making electrical connection operations convenient; the engaging structure of the hook plate slot 1012 and the cover hook plate 1021 ensures the secure closure of the top cover 102, protecting the internal connections from external influences.

[0077] Furthermore, the inner wall of the insulating base 101 is provided with a thinning groove 1013 to accommodate the cover hook plate 1021, and the hook plate fastening groove 1012 is located at the thinning groove 1013. When the top cover 102 is closed, the cover hook plate 1021 is embedded in the thinning groove 1013 and engages with the hook plate fastening groove 1012. The thinning groove 1013 provides a receiving space for the cover hook plate 1021, making the engaging structure more compact and avoiding interference.

[0078] In this embodiment, a power-connecting nut 103 is fixedly provided at the bottom of the power-connecting cavity 1011; the insulating base 101 is provided with an outwardly protruding thickened portion 1014 at a position opposite to the circumferential surface of the power-connecting nut 103, so as to completely cover the power-connecting nut 103.

[0079] The diameter of a typical electrical nut 103 is relatively small. In this embodiment, the diameter of the electrical nut 103 is larger. To ensure the injection molding connection strength between the electrical nut 103 and the insulating base 101, the insulating base 101 is locally thickened to completely cover the electrical nut 103. Specifically, during injection molding, the thickened portion 1014 protrudes outward at the position corresponding to the electrical nut 103 to completely cover it. This increases the injection molding connection area and strength between the insulating base 101 and the electrical nut 103, improving connection reliability and preventing the electrical nut 103 from loosening or coming off under vibration, thus enhancing the reliability and safety of the electrical connection. Specifically, in the insertion direction, the projection of the thickened portion 1014 covers the projection of the electrical nut 103. (Reference) Figure 2 As shown, the width of at least the thickened portion 1014 is greater than or equal to the diameter of the power-connecting nut 103 to cover the power-connecting nut 103. At the same time, in the height direction of the power-connecting nut 103, the height of the power-connecting nut 103 can exceed the height of the thickened portion 1014 to facilitate the installation and connection of the power-connecting nut 103.

[0080] Optionally, the top cover 102 has an outwardly protruding counterweight boss 1022 on the other side. When the top cover 102 is closed, the counterweight boss 1022 increases the weight on that side, causing the center of gravity of the cover to shift towards the closing direction. The counterweight boss 1022 uses gravity to automatically keep the top cover 102 closed when there is no external force, preventing it from accidentally opening due to vibration and enhancing protection.

[0081] 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 for laterally inserting into a support positioning groove (401) of a battery housing (4), characterized in that, include: Support body (1); The elastic arm (2) is fixed to the lower part of the side of the support body (1) and is used to abut against the inner wall of the support positioning groove (401) after the support body (1) is inserted into the support positioning groove (401) to restrict the support body (1) from being pulled out of the support positioning groove (401) laterally. Anti-jumping boss (3) is fixed on the upper part of the side of the support body (1) and is used to abut against the top wall of the support positioning groove (401) after the support body (1) is inserted into the support positioning groove (401) to restrict the vertical relative movement between the support body (1) and the battery box (4).

2. The output electrode support according to claim 1, characterized in that, The elastic arm (2) includes: A positioning boss (201) is fixed to the side of the support body (1); The elastic part (202) has one end fixedly connected to the positioning boss (201) and the other end extends along the pull-out direction of the output pole support. The stop part (203) is fixed to the other end of the elastic part (202) and is used to abut against the inner wall of the support seat positioning groove (401).

3. The output electrode support according to claim 2, characterized in that, The stop (203) extends obliquely upward along the pull-out direction of the output pole support to protrude from the anti-jump boss (3).

4. The output electrode support according to claim 2, characterized in that, The top surface of the anti-jump boss (3) is a horizontal rectangular surface.

5. The output electrode support according to claim 1, characterized in that, The main body of the support base (1) includes: An insulating base (101) is provided with an upward-facing electrical contact cavity (1011). A top cover (102) is rotatably mounted on the top of the insulating base (101) to cover the opening of the electrical cavity (1011); The upper part of the insulating base (101) is provided with a hook plate groove (1012), and the top cover (102) is provided with a cover hook plate (1021) that engages with the hook plate groove (1012).

6. The output pole support according to claim 5, characterized in that, The inner wall of the insulating base (101) is provided with a thinning groove (1013) for accommodating the cover hook plate (1021), and the hook plate fastening groove (1012) is located at the thinning groove (1013).

7. The output electrode support according to claim 5, characterized in that, The bottom of the electrical contact cavity (1011) is fixed with an electrical contact nut (103). The insulating base (101) has an outwardly protruding thickened portion (1014) at the position opposite to the circumferential surface of the power-connecting nut (103) to completely cover the power-connecting nut (103).

8. The output pole support according to claim 5, characterized in that, The top cover (102) has an outwardly protruding counterweight boss (1022) on the other side.

9. A support base mounting structure, characterized in that, include: The battery housing (4) is provided with a support base positioning groove (401) and a positioning groove insertion port (402) located on the side of the support base positioning groove (401). The output pole support according to any one of claims 1-8, wherein the output pole support is installed and fixed in the support positioning groove (401) via the positioning groove insertion port (402).

10. The support mounting structure according to claim 9, characterized in that, The positioning slot insertion port (402) has an elastic arm window (4021) for the elastic arm (2) to pass through and a boss window (4022) for the anti-jump boss (3) to pass through at its edge. The boss window (4022) extends along the insertion direction of the output pole support to the point directly above one end of the elastic arm (2) near the inner wall of the support positioning groove (401).

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