Pre-positioning assembly and mounting structure for battery pack box body

Abstract

The invention discloses a pre-positioning assembly and a mounting structure for a battery pack box body, the battery pack box body comprises a connector panel and a frame beam, the connector panel is positioned to the frame beam through the pre-positioning assembly; the pre-positioning assembly comprises a first part arranged on the connector panel and a second part arranged on the frame beam, and the first part is suitable for being connected to the second part in an inserted mode so that the connector panel can be positioned to the frame beam. According to the pre-positioning assembly and the mounting structure for the battery pack box body, the pre-positioning assembly is formed by introducing the first part and the second part which are in plug-in connection on the connector panel and the frame beam, so that the connector panel can be quickly positioned and arranged on the frame beam, and then the connector panel is quickly fixed to the frame beam through the fixing assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicles, and in particular relates to a pre-positioning assembly and a mounting structure for a battery pack case. Background Art

[0002] In electric vehicles, the frame beam and connector panel are integral components of the battery pack enclosure. The connector panel is mounted on the frame beam, while the battery cell modules are located within the battery pack enclosure. Wiring connections to the battery pack and cell modules are established through the connector panel. The connector panel is typically secured to the frame beam using a fastening assembly or fastening structure. This fastening installation process requires aligning the various components of the fastening structure simultaneously, making it inefficient and time-consuming. Summary of the Invention

[0003] In response to the above technical problems, the present invention proposes a pre-positioning assembly for a battery pack case and an installation structure including the pre-positioning assembly, which can quickly place a connector panel on a frame beam to increase the installation speed.

[0004] To this end, according to one aspect of the technical concept of the present invention, a pre-positioning assembly for a battery pack case is proposed, wherein the battery pack case includes a connector panel and a frame beam, and the connector panel is positioned to the frame beam through the pre-positioning assembly. The pre-positioning assembly includes a first component arranged on the connector panel and a second component arranged on the frame beam, wherein the first component is suitable for being plugged into and engaged with the second component to position the connector panel to the frame beam.

[0005] According to the above technical concept, the present invention may further include any one or more of the following optional forms.

[0006] According to some optional forms, the first component is configured as a plug-in hole provided on the connector panel, and the second component is configured as a functional rod provided on the frame beam, wherein the functional rod has at least a positioning section adapted to the plug-in hole.

[0007] According to some optional forms, a positioning threaded hole is provided on the frame beam, and the functional rod also has a threaded section deviating from the positioning section and adapted to the positioning threaded hole, so that the functional rod can be mounted to the frame beam through the engagement of the threaded section with the positioning threaded hole.

[0008] According to some optional forms, structural adhesive is provided on the threaded segment.

[0009] According to some optional forms, a stop portion is provided on the functional rod between the threaded section and the positioning section, and the stop portion is suitable for pressing the frame beam after the threaded section is engaged with the positioning threaded hole to prevent the functional rod from continuing to enter the positioning threaded hole.

[0010] According to some optional forms, the stop portion is configured as a flange that protrudes from a side wall of the functional rod and extends circumferentially.

[0011] According to another aspect of the technical concept of the present invention, a mounting structure for a connector panel is proposed, comprising at least one pre-positioning component for a battery pack case and at least one fixing component, wherein the connector panel is positioned to the frame beam via the pre-positioning component and is fixed to the frame beam via the fixing component.

[0012] According to some optional forms, the fixing assembly includes: a first fixing through-hole, which is arranged on the connector panel; a second fixing through-hole, which is arranged on the frame beam and corresponds to the first fixing through-hole; a fastening bolt and a fastening nut, which is suitable for passing through the first fixing through-hole and the second fixing through-hole and engaging the fastening nut to fix the connector panel to the frame beam.

[0013] According to some optional forms, the fastening nut is configured as a self-clinching nut.

[0014] According to some optional forms, the fastening nut constructed as a rivet nut includes: a connecting end and a free end, the connecting end is threadedly connected to the fastening bolt, and the free end is sealed; a stop flange, the stop flange protrudes from the outer periphery of the fastening nut and extends circumferentially, and forms an insertion section of the fastening nut between the stop flange and the connecting end, the insertion section is suitable for being inserted into the second fixing through hole and interference fit with the second fixing through hole until the stop flange abuts the frame beam to prevent the fastening nut from continuing to be inserted into the second fixing through hole.

[0015] The pre-positioning assembly and mounting structure for the battery pack case of the present invention form a pre-positioning assembly by introducing a first component and a second component that are plug-connected on the connector panel and the frame beam. The pre-positioning assembly can quickly position and place the connector panel on the frame beam, and then quickly fix the connector panel to the frame beam through the fixing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages and other aspects of the various embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings, in which several embodiments of the present invention are shown in an illustrative and non-restrictive manner. In the accompanying drawings, the same reference numerals represent the same or similar parts.

[0017] Figure 1 is a schematic diagram of a battery pack case (part) including a mounting structure according to the present invention;

[0018] Figure 2 is a schematic diagram of an exemplary embodiment of a mounting structure according to the present invention;

[0019] Figure 3 yes Figure 2 Exploded view of the mounting structure shown;

[0020] Figure 4 yes Figure 2 A cross-sectional view of the mounting structure shown;

[0021] Figure 5 yes Figure 4 Exploded view of the mounting structure shown;

[0022] Figure 6 is a schematic diagram of an exemplary embodiment of a function lever;

[0023] Figure 7 is a schematic diagram of an exemplary embodiment of a fastening nut.

[0024] Figure markings: 10-connector panel; 11-plug-in hole; 12-first fixing through hole; 20-frame beam; 20A-outer surface of frame beam; 20B-inner surface of frame beam; 21-functional rod; 21A-positioning section; 21B-threaded section; 21C-stop portion; 22-positioning threaded hole; 23-second fixing through hole; 24-fastening bolt; 25-fastening nut; 25A-connecting end; 25B-free end; 25C-stop flange; 25D-plug-in section; 31-frame crossbeam; 32-box bottom plate. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that if a directional indication is involved in an embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] In this specification, the terms "first" and "second" are not used to limit the order or number of components, unless otherwise specified. In this specification, "inner surface" refers to the surface of the frame beam facing the battery pack case, and "outer surface" refers to the surface of the frame beam facing away from the battery pack case.

[0029] In view of the low efficiency of installing the connector panel to the frame beam in the prior art, the present invention proposes a pre-positioning assembly and mounting structure for the battery pack case to improve the installation efficiency of the connector panel.

[0030] Figure 2 A pre-positioning assembly for a battery pack case and a mounting structure including the pre-positioning assembly according to the present invention are exemplarily shown. Figure 1 The partial structure of the battery pack box and the position of the mounting structure on the battery pack box are shown. The partial structure of the battery pack box shown also includes a frame crossbeam 31 and a box bottom plate 32. The frame beam 20 is mounted on the frame crossbeam 31. The connector panel 10 can be positioned to the frame beam 20 (specifically, the outer surface 20A of the frame beam 20) by a pre-positioning component. Figure 5 ). The pre-positioning component includes a first component provided on the connector panel 10 and a second component provided on the frame beam 20. The first component can be plugged into and joined to the second component to position the connector panel 10 to the frame beam 20. The mounting structure may further include a fixing component. After the connector panel 10 is positioned to the frame beam 20 by the pre-positioning component, the connector panel 10 can be fixed to the frame beam 20 by the fixing component. The role of the pre-positioning component is reflected in that, on the one hand, the connector panel 10 can be quickly positioned and placed on the frame beam 20 by plugging and joining; on the other hand, Figure 2 and Figure 4 In the orientation shown in FIG, the plug-in engagement of the first and second components provides support for the connector panel 10, preventing the connector panel 10 from being dislodged from the frame beam 20 due to gravity. Thus, after positioning is complete, the operator only needs to focus on securing the connector panel 10 to the frame beam 20 using the fixing assembly, without having to devote energy to applying force to support the connector panel 10. It should be understood that the mounting structure can include one or more pre-positioning and fixing assemblies, such as two or more, four or more, etc.

[0031] In some embodiments, as Figures 4 to 6As shown, the first component is constructed as a plug-in hole 11 set on the connector panel 10, and the second component is constructed as a functional rod 21 installed or set on the frame beam 20, and the functional rod 21 has at least a positioning section 21A, and the positioning section 21A can be inserted into the plug-in hole 11 to engage with the plug-in hole 11, thereby positioning the connector panel 10 to the frame beam 20.

[0032] It should be understood that, as required, the functional rod 21 can be fixed on the frame beam 20 or a separate component mounted on the frame beam 20. For example, in some embodiments, Figures 4 to 6 As shown, the frame beam 20 may be provided with a positioning threaded hole 22, and the functional rod 21 may further include a threaded segment 21B. The threaded segment 21B deviates from the positioning segment 21A and has external threads that can engage with the internal threads of the positioning threaded hole 22. Thus, the functional rod 21 is mounted on the frame beam 20 through the threaded engagement between the threaded segment 21B and the positioning threaded hole 22. The positioning threaded hole 22 may be a threaded through-hole, providing sufficient length for engagement with the threaded segment 21B. Furthermore, the threaded segment 21B of the functional rod 21 may be provided with (e.g., coated with) structural adhesive. Thus, after the threaded segment 21B is screwed into the positioning threaded hole 22, the structural adhesive fills the interface between the external threads of the threaded segment 21B and the internal threads of the positioning threaded hole 22. After the structural adhesive solidifies, it not only strengthens the secure connection between the threaded segment 21B and the positioning threaded hole 22, but also provides a sealing function, preventing dust, moisture, etc., which may be caused by poor airtightness, from entering the battery pack casing through the positioning threaded hole 22 and affecting the normal operation of the battery cell module.

[0033] In some embodiments, as Figures 3 to 6 As shown, the functional rod 21 may be provided with a stopper 21C, located between the threaded section 21B and the positioning section 21A. After the threaded section 21B is engaged with the positioning threaded hole 22, the stopper 21C may be pressed against the outer surface 20A of the frame beam 20, preventing the functional rod 21 from being further screwed into / entering the positioning threaded hole 22. Specifically, the stopper 21C may be configured as a circumferentially extending flange protruding from the side wall of the functional rod 21. The flange covers the edge of the positioning threaded hole 22 on the outer surface 20A of the frame beam 20, providing a certain sealing effect and further ensuring the airtightness of the battery pack case at the positioning threaded hole 22.

[0034] In some embodiments, as Figure 4 and Figure 5As shown, the fixing assembly of the mounting structure includes a first fixing through-hole 12, a second fixing through-hole 23, a fastening bolt 24, and a fastening nut 25. The first fixing through-hole 12 is provided on the connector panel 10, and the second fixing through-hole 23 is provided on the frame beam 20 and corresponds to the first fixing through-hole 12. The fastening bolt 24 can pass through the first fixing through-hole 12 and the second fixing through-hole 23 and engage the fastening nut 25. The fastening nut 25 is tightened to abut against the inner side surface 20B of the frame beam 20, thereby fixing the connector panel 10 to the frame beam 20.

[0035] The fastening nut 25 can be various suitable nuts, including ordinary hexagonal nuts, rivet nuts, pressure rivet nuts, etc. However, if an ordinary hexagonal nut is used, the gap between the fastening bolt 24 and the first fixing through-hole 12 and the second fixing through-hole 23 may cause poor airtightness; if a rivet nut is used and the rivet nut is installed at the second fixing through-hole 23, then after long-term use and aging, the clamping ability of the rivet nut on the frame beam 20 at the second fixing through-hole 23 may be weakened, and the contact gap between the rivet nut and the second fixing through-hole 23 becomes larger, resulting in poor airtightness. The fastening nut 25 is preferably a pressure rivet nut, and is installed in the second fixing through-hole 23 with an interference fit. Specifically, if Figures 3 to 5 and Figure 7 As shown, the fastening nut 25, constructed as a self-clinching nut, includes a connecting end 25A, a free end 25B, and a stop flange 25C. The fastening nut 25 is threadedly connected to the fastening bolt 24 at the connecting end 25A, while the free end 25B is sealed to ensure airtightness. The stop flange 25C protrudes from the outer periphery of the fastening nut 25 and extends circumferentially. An insertion section 25D of the fastening nut 25 is formed between the stop flange 25C and the connecting end 25A. The insertion section 25D can be inserted into the second fixing through-hole 23 and forms an interference fit with the second fixing through-hole 23, allowing the fastening nut 25 to be tightly mounted in the second fixing through-hole 23 and ensuring airtightness. At the same time, the plug-in section 25D is inserted into the second fixing through-hole 23 until the stop flange 25C abuts the frame beam 20 to prevent the fastening nut 25 constructed as a rivet nut from continuing to be inserted into the second fixing through-hole 23. The stop flange 25C abuts against the inner surface 20B of the frame beam 20 and enhances the abutment force against the inner surface 20B of the frame beam 20 when the fastening bolt 24 is screwed into the fastening nut 25, further enhancing the air tightness at the second fixing through-hole 23.

[0036] It should be understood that the above description of the preferred embodiment is relatively detailed and cannot be regarded as limiting the scope of protection of the patent of the present invention. Under the guidance of the present invention, ordinary technicians in this field can also make substitutions or modifications without departing from the scope of protection of the claims of the present invention, which all fall within the scope of protection of the present invention. The scope of protection requested by the present invention shall be based on the attached claims.

Claims

1. A pre-positioning assembly for a battery pack box, the battery pack box comprising a connector panel (10) and a frame beam (20), characterized in that: The connector panel (10) is positioned to the frame beam (20) by the pre-positioning assembly, the pre-positioning assembly comprising a first component arranged on the connector panel (10) and a second component arranged on the frame beam (20), the first component being adapted to be plugged into and engaged with the second component to position the connector panel (10) to the frame beam (20).

2. The pre-positioning assembly for a battery pack box according to claim 1, characterized in that: The first component is configured as a plug hole (11) provided on the connector panel (10), and the second component is configured as a functional rod (21) provided on the frame beam (20), wherein the functional rod (21) has at least a positioning section (21A) adapted to the plug hole (11).

3. The pre-positioning assembly for a battery pack box according to claim 2, characterized in that: The frame beam (20) is provided with a positioning threaded hole (22), and the functional rod (21) also has a threaded section (21B) that deviates from the positioning section (21A) and is adapted to the positioning threaded hole (22), so that the functional rod (21) is mounted on the frame beam (20) through the engagement of the threaded section (21B) with the positioning threaded hole (22).

4. The pre-positioning assembly for a battery pack box according to claim 3, characterized in that: Structural adhesive is provided on the threaded section (21B).

5. The pre-positioning assembly for a battery pack box according to claim 3 or 4, characterized in that: The functional rod (21) is provided with a stopper (21C) located between the threaded section (21B) and the positioning section (21A), and the stopper (21C) is suitable for pressing the frame beam (20) after the threaded section (21B) is engaged with the positioning threaded hole (22) to prevent the functional rod (21) from continuing to enter the positioning threaded hole (22).

6. The pre-positioning assembly for a battery pack box according to claim 5, characterized in that: The stopper (21C) is configured as a flange protruding from a side wall of the functional rod (21) and extending circumferentially.

7. A mounting structure for a battery pack box, characterized in that: The invention comprises at least one pre-positioning assembly for a battery pack case according to any one of claims 1 to 6 and at least one fixing assembly, wherein the connector panel (10) is positioned to the frame beam (20) by the pre-positioning assembly and is fixed to the frame beam (20) by the fixing assembly.

8. The mounting structure for a battery pack box according to claim 7, characterized in that: The fixing assembly includes: a first fixing through hole (12), the first fixing through hole (12) being arranged on the connector panel (10); a second fixing through hole (23), the second fixing through hole (23) being provided on the frame beam (20) and corresponding to the first fixing through hole (12); A fastening bolt (24) and a fastening nut (25), wherein the fastening bolt (24) is adapted to pass through the first fixing through-hole (12) and the second fixing through-hole (23) and engage the fastening nut (25) to fix the connector panel (10) to the frame beam (20).

9. The mounting structure for a battery pack box according to claim 8, characterized in that: The fastening nut (25) is configured as a rivet nut.

10. The mounting structure for a battery pack box according to claim 9, characterized in that: The fastening nut (25) configured as a self-clinching nut comprises: A connecting end (25A) and a free end (25B), wherein the connecting end (25A) is threadedly connected to the fastening bolt (24), and the free end (25B) is sealed; A stop flange (25C) protrudes from the outer periphery of the fastening nut (25) and extends circumferentially, and forms an inserting section (25D) of the fastening nut (25) between the stop flange (25C) and the connecting end (25A), and the inserting section (25D) is suitable for being inserted into the second fixing through hole (23) and interference fit with the second fixing through hole (23) until the stop flange (25C) abuts the frame beam (20) to prevent the fastening nut (25) from continuing to be inserted into the second fixing through hole (23).

Images