Battery pack plug-in fixing structure, energy storage unit and power equipment

Abstract

The utility model relates to the technical field of new energy batteries, and particularly discloses a battery pack plug-in fixing structure, an energy storage unit and power equipment. The battery pack plug-in fixing structure comprises a pre-positioning component and a connecting plug-in, wherein the bottom of the pre-positioning part is connected to a lower shell of the battery pack, and the top of the pre-positioning part is provided with a limiting part I; the bottom of the connecting plug-in is provided with a limiting part II, and the top is provided with a guide part; the pre-positioning component can be installed on the battery pack for pre-positioning, then the copper bar is connected to the first limiting component, and then the first limiting component is connected to the pre-positioning component, so that pre-positioning of the copper bar is achieved, and integration of electrical parts of a whole vehicle is better achieved; and then the upper shell is installed from top to bottom, after the upper shell is matched with the connecting plug-in, the upper shell is finally connected with the connecting plug-in, so that not only is the problem of integration of electrical parts and the battery pack of the whole vehicle solved, but also the problems of multiple operation steps, easiness in ignition and easiness in neglected installation in an inverted installation mode are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, and in particular to a battery pack plug-in fixing structure and an energy storage unit and a power device having the battery pack plug-in fixing structure. Background Art

[0002] Developing new energy vehicles is the only way for my country to move from a large automobile country to a powerful automobile country. It is also a strategic measure to cope with climate change, promote green development, and advocate the concept of low-carbon travel. In new energy vehicles, the battery pack is undoubtedly the heart of new energy vehicles.

[0003] With the accelerated industrialization of the power battery industry, the types of battery packs are gradually increasing. In the production of battery packs, the upper and lower shells of the battery pack are connected through the battery pack plug-in. The installation position of the battery pack plug-in is generally in the lower shell or the upper shell. In existing products, most battery packs install the plug-in in the lower shell, so that the battery pack components can be installed from top to bottom. However, it is difficult to integrate the vehicle electrical components with the battery pack by installing it in the lower shell. It requires a longer soft connection and increases material costs. Installing the plug-in in the upper shell facilitates the integration of the vehicle electrical components, but compared with the solution in which the plug-in is fixed on the lower shell, the plug-in is fixed on the top of the upper shell of the battery pack. The battery pack is generally inverted. The inverted installation method has many steps, is easy to ignite, and is easy to miss. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present utility model provides a battery pack plug-in fixing structure, including: a pre-positioning component and a connecting plug-in; wherein,

[0006] The bottom of the pre-positioning component is connected to the lower shell of the battery pack, and a limiting component 1 is arranged on the top thereof; a limiting component 2 is arranged on the bottom of the connecting plug-in, and a guide component is arranged on the top; after the limiting component 2 passes through the copper busbar, it is detachably connected to the limiting component 1; the upper shell of the battery pack is provided with a limiting hole 1 adapted to the guide component, and after the guide component passes through the limiting hole 1, the connecting plug-in can be connected to the upper shell.

[0007] In the scheme of the utility model, the pre-positioning component and the connecting plug-in form a detachable connection structure; the pre-positioning component can be first installed on the battery pack for pre-positioning, and then the copper busbar can be connected to the limiting component one, and then the limiting component one is connected to the pre-positioning component to achieve pre-positioning of the copper busbar, which is more conducive to the integration of the electrical components of the whole vehicle; then the upper shell is installed from top to bottom, and after the upper shell and the connecting plug-in are matched, the upper shell and the connecting plug-in are finally connected, which not only solves the integration problem of the electrical components of the whole vehicle and the battery pack, but also solves the problems of the flip-up method with many operation steps, easy ignition, and easy missing installation.

[0008] In the preferred embodiment of the above-mentioned battery pack plug-in fixing structure, the first limiting component and the second limiting component are plug-in connection structures.

[0009] In the preferred embodiment of the above-mentioned battery pack plug-in fixing structure, the first limiting component is a limiting groove; the second limiting component is a limiting protrusion adapted to the limiting groove; and the limiting groove and the limiting protrusion are clearance-matched.

[0010] In the preferred embodiment of the above-mentioned battery pack plug-in fixing structure, a shock absorbing component is arranged inside the first limiting component, and the second limiting component abuts against the shock absorbing component.

[0011] In a preferred solution of the above-mentioned battery pack plug-in fixing structure, a connecting component is provided at the bottom of the pre-positioning component, and the connecting component is detachably connected to the crossbeam of the lower shell.

[0012] In the preferred embodiment of the above-mentioned battery pack plug-in fixing structure, the limiting protrusion includes a plurality of limiting columns arranged side by side; the copper busbar is provided with a second limiting hole; the limiting columns respectively penetrate the second limiting hole of the copper busbar and then penetrate into the limiting groove to position the copper busbar.

[0013] In a preferred embodiment of the above-mentioned battery pack plug-in fixing structure, a plurality of guide components are provided, and the top ends of the guide components are conical structures; and the plurality of guide components are fixed side by side on the top of the connecting plug-in.

[0014] In the preferred embodiment of the above-mentioned battery pack plug-in fixing structure, the connecting plug-in is a plate-like structure, and a plurality of connecting holes 1 are arranged near the edge; the upper shell is provided with connecting hole 2 matching the connecting hole 1; after the upper shell and the connecting plug-in are abutted, the connecting hole 1 and the connecting hole 2 can be connected by bolts.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, rather than limiting the present disclosure. Other features and aspects of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the battery pack plug-in fixing structure shown in the utility model in the clamping state.

[0018] Figure 2 It is a structural schematic diagram of the battery pack plug-in fixing structure shown in the utility model in an exploded state.

[0019] Figure 3 yes Figure 2 The connection diagram of the connection plug is shown in the figure.

[0020] Figure 4 yes Figure 1 Schematic diagram of the structure of the connection plug-in.

[0021] Reference numerals:

[0022] 1. Pre-positioning component; 10. Limiting component 1; 11. Shock-absorbing component; 12. Connecting component; 2. Connecting plug-in; 20. Limiting component 2; 21. Guide component; 22. Connecting hole 1; 3. Lower shell; 4. Upper shell; 40. Limiting hole 1; 41. Connecting hole 2; 5. Copper busbar. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As described in the background technology, in existing products, most battery packs install the plug-in in the lower shell, so that the battery pack components can be installed from top to bottom. However, it is difficult to integrate the vehicle electrical components with the battery pack by installing the plug-in in the lower shell, and a longer flexible connection is required, which increases the material cost. Installing the plug-in in the upper shell facilitates the integration of the vehicle electrical components, but compared with the solution where the plug-in is fixed on the lower shell, the plug-in is fixed on the top of the battery pack upper shell, and the battery pack is generally inverted. The inverted installation method has many operation steps, is easy to ignite, and is easy to miss.

[0025] Reference Figure 1-4 As shown, a battery pack plug-in fixing structure according to an embodiment of the utility model comprises: a pre-positioning component 1 and a connecting plug-in 2; wherein,

[0026] The bottom of the pre-positioning component 1 is connected to the lower shell 3 of the battery pack, and a limiting component 10 is arranged on the top thereof; a limiting component 20 is arranged on the bottom of the connecting plug-in 2, and a guide component 21 is arranged on the top; after the limiting component 20 passes through the copper bus 5, it is detachably connected to the limiting component 10; the upper shell 4 of the battery pack is provided with a limiting hole 40 adapted to the guide component 21, and after the guide component 21 passes through the limiting hole 40, the connecting plug-in 2 can be connected to the upper shell 4.

[0027] It should be noted that the pre-positioning component 1 and the connecting plug-in 2 adopt a detachable connection structure; the pre-positioning component 1 can be installed on the battery pack for pre-positioning first, and then the copper busbar 5 is connected to the limiting component 10, and then the limiting component 10 is connected to the pre-positioning component 1 to achieve pre-positioning of the copper busbar 5, which is more conducive to the integration of the electrical components of the whole vehicle; then the upper shell 4 is installed from top to bottom, and after the upper shell 4 is matched with the connecting plug-in 2, the upper shell 4 is finally connected to the connecting plug-in 2, which not only solves the integration problem of the electrical components of the whole vehicle and the battery pack, but also solves the problems of the flip-up method with many operation steps, easy ignition, and easy missing installation.

[0028] In the above-mentioned specific embodiment of the battery pack plug-in fixing structure, the limiting component 10 and the limiting component 2 20 are a plug-in connection structure or a clamping structure, and the plug-in connection structure is preferred here.

[0029] Specifically, the limiting component 10 is a limiting groove; the limiting component 20 is a limiting protrusion adapted to the limiting groove; and the limiting groove and the limiting protrusion are clearance-matched.

[0030] Specifically, an elliptical cylindrical structure is provided on the top of the connecting plug-in 2 to form a limiting groove; the limiting protrusion can be a solid cylindrical structure or a circular tube structure, and its outer diameter is smaller than the internal size of the limiting groove, so that the connecting plug-in 2 can move on the pre-positioning component 1 instead of being fixed; this connection method can perform slight position adjustments, reduce the difficulty of positioning the upper shell 4, and improve installation efficiency.

[0031] In the above-mentioned specific embodiment of the battery pack plug-in fixing structure, a shock absorbing component 11 is disposed in the limiting component 10 , and the limiting component 20 abuts against the shock absorbing component 11 .

[0032] Specifically, the shock absorbing component 11 can be a foam material, which is laid on the bottom of the limiting component 10. When the limiting component 20 enters the limiting component 10, it contacts the foam material.

[0033] It should be understood that the shock-absorbing component 11 can provide a certain support to the limiting component 20 and has a certain shock-absorbing effect. During the installation of the upper shell 4, when the battery pack vibrates, it can avoid the problem of damage to the upper shell 4 caused by the plug-in hitting the upper shell 4 under vibration conditions because the upper shell 4 is a thin plate.

[0034] In the above-mentioned specific embodiment of the battery pack plug-in fixing structure, a connecting component 12 is provided at the bottom of the pre-positioning component 1, and the connecting component 12 is detachably connected to the crossbeam of the lower shell 3.

[0035] Specifically, the connecting component 12 may be a U-shaped connecting frame, an opening of which is fixedly embedded in the crossbeam of the lower shell 3 and fixed by bolts.

[0036] It should be understood that the U-shaped connecting frame can improve the fit between the pre-positioning component 1 and the lower shell 3, thereby improving the installation firmness, ensuring the installation quality, facilitating positioning and assembly, and reducing the difficulty of assembly.

[0037] In the above-mentioned specific embodiment of the battery pack plug-in fixing structure, the limiting protrusion includes a plurality of limiting columns arranged side by side; the copper busbar 5 is provided with a second limiting hole; the limiting columns respectively penetrate the second limiting hole of the copper busbar 5 and then penetrate into the limiting groove to position the copper busbar 5.

[0038] Specifically, the limiting column can be a solid column or a hollow tube structure, and a hollow tube is preferably used here, which is beneficial to reduce weight and material cost, and the number of limiting columns is consistent with the number of copper bars 5, so all copper bars 5 can be positioned; after the pre-positioning component 1 is connected to the connecting plug-in 2, the copper bar 5 is located between the pre-positioning component 1 and the connecting plug-in 2.

[0039] It should be understood that the copper busbar 5 is between the pre-positioning component 1 and the connecting plug-in 2. When assembling the upper shell 4, the connecting plug-in 2 can cover the copper busbar 5 and play a certain protective effect. In addition, the positioning connection of the copper busbar 5 makes it easier to realize the electrical integration of the entire vehicle.

[0040] In the above-mentioned specific embodiment of the battery pack plug-in fixing structure, a plurality of guide components 21 are provided, and the top ends of the guide components 21 are conical structures; the plurality of guide components 21 are fixed side by side on the top of the connecting plug-in 2 .

[0041] Specifically, the guide component 21 can be a guide cylinder or a positioning pin, preferably a positioning pin, and the top of the positioning pin is processed into a conical structure so that the cone head is smaller than the limiting hole 40 of the upper shell 4.

[0042] It should be understood that the guide component 21 processed at the top is more conducive to the alignment installation of the upper shell 4, reducing the difficulty of assembly and improving the assembly efficiency.

[0043] In the above-mentioned specific embodiment of the battery pack plug-in fixing structure, the connecting plug-in 2 is a plate-like structure, and a plurality of connecting holes 22 are arranged near the edge; the upper shell 4 is provided with connecting holes 41 matching the connecting holes 22; after the upper shell 4 and the connecting plug-in 2 are abutted, the connecting holes 22 and the connecting holes 41 can be connected by bolts.

[0044] Specifically, an annular sealing ring is also provided on the top edge of the connecting plug-in 2 to achieve a tight connection with the upper shell 4 .

[0045] It should be understood that the detachable connection between the connecting plug 2 and the upper shell 4 can be achieved by bolts, and when a fault occurs, it can be disassembled more conveniently, reducing the difficulty and cost of maintenance.

[0046] In one embodiment of the present utility model, an energy storage unit is disclosed, and the connection mechanism of the energy storage unit is the above-mentioned battery pack plug-in fixing structure.

[0047] It should be understood that, since the energy storage unit is provided with the above-mentioned battery pack plug-in fixing structure, it has all the beneficial effects of the above-mentioned battery pack plug-in fixing structure.

[0048] In another embodiment of the present utility model, a power device is disclosed, comprising the above-mentioned energy storage unit.

[0049] It should be understood that, since the power equipment is provided with the above-mentioned energy storage unit, it has all the beneficial effects of the above-mentioned energy storage unit.

[0050] 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 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A battery pack plug-in fixing structure, characterized in that: include: A pre-positioning component, the bottom of which is connected to the lower shell of the battery pack, and the top of which is provided with a limiting component 1; A connecting plug-in is provided with a limiting component 2 at the bottom and a guiding component at the top; after the limiting component 2 passes through the copper busbar, it is detachably connected to the limiting component 1; the upper shell of the battery pack is provided with a limiting hole 1 adapted to the guiding component, and after the guiding component passes through the limiting hole 1, the connecting plug-in can be connected to the upper shell.

2. A battery pack plug-in fixing structure according to claim 1, characterized in that: The first limiting component and the second limiting component are plug-in connection structures.

3. A battery pack plug-in fixing structure according to claim 2, characterized in that: The first limiting component is a limiting groove; the second limiting component is a limiting protrusion matched with the limiting groove; and the limiting groove and the limiting protrusion are clearance-matched.

4. A battery pack plug-in fixing structure according to any one of claims 1 to 3, characterized in that: A shock absorbing component is arranged inside the first limiting component, and the second limiting component abuts against the shock absorbing component.

5. A battery pack plug-in fixing structure according to claim 1, characterized in that: A connecting component is provided at the bottom of the pre-positioning component, and the connecting component is detachably connected to the crossbeam of the lower shell.

6. A battery pack plug-in fixing structure according to claim 3, characterized in that: The limiting protrusion includes a plurality of limiting columns arranged side by side; the copper busbar is provided with a second limiting hole; the limiting columns respectively penetrate through the second limiting hole of the copper busbar and then penetrate into the limiting groove to position the copper busbar.

7. A battery pack plug-in fixing structure according to claim 1, characterized in that: The guide components are provided in plurality, and the top ends of the guide components are conical structures; the guide components are fixed side by side on the top of the connecting plug-in.

8. A battery pack plug-in fixing structure according to claim 1, characterized in that: The connecting plug-in is a plate-like structure, and a plurality of connecting holes 1 are arranged near the edge; the upper shell is provided with connecting holes 2 matching the connecting holes 1; after the upper shell and the connecting plug-in are abutted, the connecting holes 1 and 2 can be connected by bolts.

9. An energy storage unit, characterized in that: The connection mechanism of the energy storage unit is a battery pack plug-in fixing structure according to any one of claims 1 to 8.

10. A power device, characterized in that: An energy storage unit comprising the above claim 9.

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