Power battery pack upper cover sealing gasket assembling and positioning device

Abstract

The utility model provides a power battery pack upper cover sealing gasket assembling and positioning device, which is used for positioning a sealing gasket at an assembling position of a battery pack upper cover and comprises a profiling plate, a positioning device and a positioning device, the positioning mechanism comprises a supporting arm fixedly kept above the profiling plate and a positioning piece arranged on the supporting arm; the positioning piece can move back and forth in the direction perpendicular to the profiling plate and is kept on the supporting arm; when the positioning piece is operated to move towards the profiling plate, the positioning piece crosses the profiling plate from the outer side of the profiling plate and is connected to a preset reference adaptive part on the battery pack. The power battery pack upper cover sealing gasket assembling and positioning device disclosed by the utility model is beneficial to improving the assembling precision and the assembling efficiency of the power battery pack upper cover sealing gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery packs, and in particular to an assembly and positioning device for a sealing gasket on a power battery pack cover. Background Art

[0002] The power battery pack is the core component of electric vehicles. The current design of the power battery pack is evolving towards lightweight and integration. At present, the entire floor of electric vehicles is directly integrated with the battery pack cover. Reducing the weight of the vehicle floor has become an important design trend. This method requires good sealing performance between the battery pack cover and the entire vehicle floor. The sealing method is to use a soft material sealing gasket.

[0003] Due to the width limitation of the sealing area, the effective action area of ​​the sealing gasket is small. Therefore, the assembly accuracy error requirements for the power battery pack cover sealing gasket are relatively high. At present, manual visual pasting is generally adopted. However, for products with large size, slender shape and high assembly accuracy requirements, the error fluctuation after pasting is large and cannot meet the assembly accuracy error requirements. In addition, for the pasting position of the sealing gasket with positioning reference requirements, manual visual pasting cannot meet the requirements and cannot be accurately pasted at the relative position corresponding to the reference. Therefore, the current manual visual pasting operation cannot stably guarantee the assembly accuracy error and leads to low assembly efficiency of the power battery pack cover sealing gasket. Utility Model Content

[0004] In view of this, the utility model aims to provide a power battery pack upper cover sealing gasket assembly positioning device, so as to improve the power battery pack upper cover sealing gasket assembly accuracy and assembly efficiency.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A power battery pack upper cover sealing gasket assembly positioning device is used to position the sealing gasket at the installation position of the battery pack upper cover, and the positioning device includes:

[0007] A contour plate having an outer profile that follows the contour of the inner ring of the sealing gasket;

[0008] The positioning mechanism comprises a support arm fixedly held above the profiling plate, and a positioning member arranged on the support arm; the positioning member can be held on the support arm so as to move back and forth in a direction perpendicular to the profiling plate;

[0009] When the positioning member is operated to move toward the profiling plate, the positioning member passes over the profiling plate from the outer side of the profiling plate and is connected to a preset reference adapter portion on the battery pack.

[0010] Furthermore, the positioning member is provided in two, and the two positioning members are disposed at two ends in the length direction of the support arm.

[0011] Further, the positioning member is configured as a positioning pin that is held on the support arm and can move back and forth, and the reference adapter is configured as a positioning hole that receives the positioning pin.

[0012] Furthermore, the circumferential profiles of the two positioning members are arranged differently.

[0013] Furthermore, a hemispherical guide portion is formed at the free end of the positioning member for guiding the positioning member to be inserted into the positioning hole.

[0014] Furthermore, a guide sleeve is embedded on the support arm, and the guide sleeve is extended along its own axial direction. The positioning member is operable to slide and be retained in the guide sleeve.

[0015] Furthermore, a hollow portion is formed in the middle of the contoured plate.

[0016] Furthermore, the contoured plate is formed by splicing a plurality of sub-plates.

[0017] Furthermore, the positioning device includes a base installation portion clamped and fixed between the contour plate and the positioning mechanism.

[0018] Furthermore, the base installation portion is constructed as a frame structure, and the plane where the base installation portion is located is parallel to the contour plate.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The power battery pack upper cover sealing gasket assembly positioning device described in the utility model supports and flattens the sealing gasket through a contoured plate following the inner ring contour of the sealing gasket, and realizes the positioning of the positioning device on the power battery pack upper cover through a positioning mechanism, so that the sealing gasket can be accurately positioned and installed through a preset reference adapter portion on the battery pack, thereby improving the installation accuracy of the power battery pack upper cover sealing gasket and improving the installation efficiency.

[0021] By providing two positioning members, the positioning device can be better positioned on the power battery pack, and has a simple structure, which is convenient for design and implementation.

[0022] The positioning device is assembled by cooperating with the positioning pin and the positioning hole, so that the relative position of the positioning device and the battery pack is better positioned. The structure is simple, easy to process and manufacture, and conducive to design implementation.

[0023] By differentially setting the circumferential profiles of the two positioning members, the positioning accuracy between the positioning members and the battery pack is improved, which is beneficial to the design implementation.

[0024] By setting the guide part, the positioning accuracy of the positioning member and the battery pack is improved, and the positioning member can be guided by the guide part into the positioning hole, which is beneficial to ensure the positioning accuracy when the positioning device is used for repeated positioning multiple times.

[0025] By setting the guide sleeve embedded in the support arm, the movement trajectory of the positioning member when moving on the support arm is made more accurate, which is conducive to design implementation.

[0026] The hollow portion is provided to facilitate the weight reduction of the positioning device, thereby reducing the weight of the positioning device and facilitating operation by the user.

[0027] The split setting of the profiling plate reduces the processing difficulty, improves the accuracy of the contour of the profiling plate, is conducive to fully flattening the sealing gasket, and is conducive to design implementation.

[0028] The basic mounting part can serve as the mounting base of the profiling plate on the positioning mechanism, which is beneficial to improving the connection tightness of the entire device, and the basic mounting part can support the profiling plate, which is beneficial to ensuring that the shape of the profiling plate itself is fully unfolded and can prevent the deformation of the profiling plate.

[0029] The basic installation part of the frame structure has been designed to reduce the load while ensuring its own functions. It has a simple structure, is easy for users to operate, and is beneficial to design implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 This is a schematic diagram of the use state of the power battery pack upper cover sealing gasket assembly positioning device according to an embodiment of the utility model;

[0032] Figure 2 for Figure 1 A magnified image of point A;

[0033] Figure 3 An exploded view of the sealing pad, battery pack and positioning device of the utility model;

[0034] Figure 4 This is a structural schematic diagram of a power battery pack upper cover sealing gasket assembly positioning device according to an embodiment of the utility model;

[0035] Figure 5 An exploded view of the assembly and positioning device of the upper cover sealing gasket of the power battery pack according to the embodiment of the utility model;

[0036] Figure 6It is a structural schematic diagram of the profiling plate according to an embodiment of the utility model;

[0037] Figure 7 It is a structural schematic diagram of the positioning mechanism described in an embodiment of the utility model;

[0038] Figure 8 for Figure 7 A magnified image of point A;

[0039] Description of reference numerals:

[0040] 1. profiling plate; 101. hollowing; 102. connecting block;

[0041] 2. Positioning mechanism;

[0042] 201, support arm; 2011, connecting plate;

[0043] 202, positioning member; 2021, guiding portion;

[0044] 203, guide sleeve;

[0045] 3. Battery pack; 4. Reference adapter; 5. Basic mounting portion; 6. Sealing gasket; 7. Handle. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] Embodiment 1

[0051] The utility model relates to a power battery pack upper cover sealing gasket assembly positioning device, so that the assembly accuracy and assembly efficiency of the sealing gasket on the power battery pack upper cover can be improved through the positioning device.

[0052] In terms of overall structure, combined Figures 1 to 5 As shown, the power battery pack upper cover sealing gasket assembly positioning device of this embodiment is used to position the sealing gasket 6 at the installation position of the upper cover of the battery pack 3, and the positioning device includes a profiling plate 1 and a positioning mechanism 2. Among them, the profiling plate 1 has an outer profile that follows the inner circle profile of the profiling gasket 6; the positioning mechanism 2 includes a support arm 201 fixedly held above the profiling plate 1, and a positioning member 202 arranged on the support arm 201; the positioning member 202 can be held on the support arm 201 in a reciprocating motion along a direction perpendicular to the profiling plate 1; when the positioning member 202 moves toward the profiling plate 1 due to the operation, the positioning member 202 passes over the profiling plate 1 from the outer side of the profiling plate 1 and is connected to the preset reference adapter 4 on the battery pack 3.

[0053] As configured above, the sealing gasket 6 is supported and flattened by a contour plate 1 that follows the inner circle contour of the sealing gasket 6, and the positioning device is positioned on the upper cover of the power battery pack 3 by the positioning mechanism 2, so that the sealing gasket 6 can be accurately positioned and installed through the preset reference adapter 4 on the battery pack 3, thereby improving the installation accuracy of the sealing gasket 6 on the upper cover of the power battery pack 3 and improving the installation efficiency.

[0054] Based on the above overall introduction, an exemplary structure of the power battery pack upper cover sealing gasket assembly positioning device in this embodiment is as follows: Figure 4 and Figure 5 shown.

[0055] Among them, the contour plate 1 can support and unfold the sealing gasket 6. The outer contour of the contour plate 1 follows the contour of the inner circle of the sealing gasket 6, so that the sealing gasket 6 can be fully unfolded according to the preset shape of the sealing gasket 6 when it is installed on the contour plate 1 and waiting to be pasted. This can improve the relative relationship between the installation position of the sealing gasket 6 and the battery pack 3 when it is positioned on the battery pack 3 through the positioning mechanism 2.

[0056] In order to better operate the positioning device, combined with Figure 6 As shown, a hollow 101 is formed in the middle of the profiling plate 1. The hollow 101 makes the positioning device lighter and is convenient for the user to operate.

[0057] Specifically, the shape and number of the hollowing out 101 can be determined according to the layout requirements. For example, the shape of the hollowing out 101 can be rectangular, circular, elliptical or triangular, etc., and the number of the hollowing out 101 can be one, two, three, four or five, etc., as long as it meets the layout requirements while ensuring its own structural strength.

[0058] In order to improve the accuracy of the contour of the profiling plate 1, the profiling plate 1 is composed of multiple split panels. By dividing the profiling plate 1 into multiple split panels for processing, the accuracy error caused by the processing and manufacturing of the whole plate of the profiling plate 1 is reduced, and the accuracy of the outer contour of the profiling plate 1 is improved, which is beneficial to the design implementation. The shape of the outer contour of the profiling plate 1 can also be changed by replacing the split panels, and can adapt to sealing gaskets 6 of different shapes and sizes.

[0059] As in this embodiment, the profiling plate 1 includes two symmetrical first beveled plates, two symmetrical second beveled plates, two symmetrical side plates, a rear plate, a front plate and a middle connecting plate. Each sub-plate is processed separately during production, and then each sub-plate is connected by a connecting block 102 to form the profiling plate 1.

[0060] Combination Figures 4 to 7 As shown, a positioning mechanism 2 is fixedly retained on the profiling plate 1, and the positioning mechanism 2 includes a support arm 201 and a positioning member 202 arranged on the support arm 201, and the positioning member 202 can move back and forth in a direction perpendicular to the profiling plate 1, and a reference adapter 4 is also provided on the battery pack 3 to cooperate therewith, and the positioning member 202 is connected to the reference adapter 4 preset on the battery pack 3, so that the profiling plate 1 fixedly retained on the positioning mechanism 2 is also positioned on the battery pack 3, thereby realizing the installation positioning of the sealing gasket 6 supported and unfolded on the profiling plate 1.

[0061] Specifically, combined with Figure 7 As shown, in this embodiment, the shape of the support arm 201 is constructed as a long strip, and a connecting plate 2011 for connecting with the contour plate 1 and the base mounting portion 5 is provided below the support arm 201. In this embodiment, the number of the connecting plates is four, and the four connecting plates 2011 are arranged in the length direction of the support arm 201.

[0062] There are two positioning members 202 , which are disposed at both ends of the support arm 201 in the length direction. The two positioning members 202 enable the positioning device to be better positioned on the power battery pack 3 , and the structure is simple, which is convenient for design and implementation.

[0063] Of course, the number of the positioning members 202 can also be set to one, three, four, five or six, etc., as long as it can achieve the positioning of the relative position relationship between the contour plate 1 and the battery pack 3.

[0064] In order to better realize the positioning and assembly relationship between the positioning member 202 and the reference adapter part 4, the positioning member 202 in this embodiment is constructed as a positioning pin that can move back and forth and is retained on the support arm 201, and the reference adapter part 4 is constructed as a positioning hole that receives the positioning pin. The positioning assembly of the positioning device is realized by the cooperation between the positioning pin and the positioning hole, which better realizes the relative positioning of the positioning device and the battery pack 3. The structure is simple, easy to process and manufacture, and conducive to design implementation.

[0065] It is worth mentioning that the reference adapter 4 can also use the hole on the shell structure of the battery pack 3 as the positioning hole, and it only needs to be matched with a positioning piece 202 that can be connected and matched therewith.

[0066] In order to improve the positioning accuracy of the positioning member 202, the circumferential surfaces of the two positioning members 202 in the present embodiment are set differently. Specifically, in the present embodiment, one positioning member 202 is a cylindrical pin, and part of the circumferential surface of the other positioning member 202 is partially cylindrical. By setting the circumferential surfaces of the two positioning members 202 differently, the positioning accuracy of the positioning member 202 and the battery pack 3 is better improved, which is beneficial to the design implementation.

[0067] In order to improve the use effect of the positioning member 202, combined with Figure 7 and Figure 8 As shown, the free end of the positioning member 202 is formed with a hemispherical guide portion 2021 for guiding the positioning member 202 to be inserted into the positioning hole. Through the setting of the guide portion 2021, the positioning accuracy of the positioning member 202 and the battery pack 3 is improved, and the positioning member 202 can be guided by the guide portion 2021 to enter the positioning hole, which is beneficial to ensure the positioning accuracy when the positioning device is used repeatedly for repeated positioning.

[0068] In this embodiment, the guide portion 2021 and the positioning member 202 can be configured to be detachably connected. The guide portion 2021 is prone to frictional contact with the positioning hole during use, and thus the positioning accuracy may be affected after repeated use. The guide portion 2021 and the positioning member 202 are configured to be detachably connected. After the guide portion 2021 changes its shape due to friction, only the guide portion 2021 on the positioning member 202 needs to be replaced, thereby extending the service life of the overall positioning device.

[0069] In order to better guide the positioning member 202, a guide sleeve 203 is embedded in the support arm 201. The guide sleeve 203 is extended along its own axial direction. The positioning member 202 is operable to slide and remain in the guide sleeve 203. By setting the guide sleeve 203 embedded in the support arm 201, the movement trajectory of the positioning member 202 when moving on the support arm 201 is more precise, which is conducive to design implementation.

[0070] In addition, the provision of the guide sleeve 203 enables the contour plate 1 to be raised and lowered along the axial direction of the positioning member 202, which is conducive to the pasting of the sealing gasket 6 of the battery pack 3 of different heights.

[0071] In order to increase the service life of the positioning member 202 and the guide sleeve 203, the material of the positioning member 202 and the guide sleeve 203 can be, for example, a non-metallic wear-resistant material. The use of non-metallic wear-resistant material can not only avoid scratching the battery pack 3, but also ensure the service life of the positioning member 202 and the guide sleeve 203.

[0072] In order to facilitate the installation of the profiling plate 1 and the positioning mechanism 2, the power battery pack upper cover sealing gasket assembly positioning device in this embodiment also includes a basic mounting portion 5 clamped between the profiling plate 1 and the positioning mechanism 2. The basic mounting portion 5 can serve as the installation base of the profiling plate 1 and the positioning mechanism 2, which is beneficial to improving the overall connection tightness of the device, and the basic mounting portion 5 can support the profiling plate 1, which is beneficial to ensure that the shape of the profiling plate 1 itself is fully unfolded and can prevent the deformation of the profiling plate 1.

[0073] Of course, the basic mounting portion 5 may not be provided, and it is only necessary to connect the supporting portion of the positioning mechanism 2 to the contour plate 1 so that the contour plate 1 can be positioned on the power battery pack 3 through the positioning member 202 , thereby achieving the positioning of the sealing gasket 6 .

[0074] Combination Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, in order to better support the profiling plate 1 and the positioning mechanism 2, the base mounting portion 5 in this embodiment is constructed as a frame structure, and the plane where the base mounting portion 5 is located is parallel to the profiling plate 1. In order to reduce the load on the basis of ensuring the structural strength of the base mounting portion 5, the base mounting portion 5 of the frame structure can be made of extruded aluminum profiles in this embodiment. On the basis of ensuring its own functional role, it is reduced in load, has a simple structure, is helpful for users to operate, and is conducive to design implementation.

[0075] In this embodiment, the profiling plate 1 and the positioning mechanism 2 are both arranged on the base installation portion 5 by bolts, and the bolt connection facilitates disassembly and installation.

[0076] Specifically, the profiling plate 1 is arranged on the base mounting portion 5 by bolts, and the positioning mechanism 2 is arranged on the base mounting portion 5 by bolts passing through two connecting plates 2011 located in the middle of the support arm 201. The profiling plate is also connected to the connecting plates 2011 located at both ends of the support arm 201 in the length direction by bolts. Through the above connection method, the connection between the profiling plate 1, the positioning mechanism 2 and the base mounting portion 5 is more stable.

[0077] In order to facilitate taking, a handle 7 can be provided on the base mounting portion 5. When in use, the positioning device can be conveniently operated by only holding the handle 7 and pulling it. In this embodiment, there are four handles 7, which are placed in pairs on both sides of the base mounting portion.

[0078] When using, combine Figures 1 to 3 As shown, first, the sealing gasket 6 is bypassed by the positioning member 202 and mounted on the contour plate 1, and then the positioning device is placed as a whole on the upper surface of the upper cover of the battery pack 3, and the positioning member 202 is connected to the preset reference adapter 4 on the battery pack 3 to limit the relative position between the positioning device and the battery pack 3, and to ensure that the sealing gasket 6 is in the predetermined installation position on the battery pack 3, and then the sealing gasket 6 is manually pasted on the upper shell of the battery pack 3.

[0079] In this embodiment, the sealing gasket 6 is supported and flattened by the profiling plate 1, and the relative position between the positioning device and the battery pack 3 is determined by the positioning mechanism 2, thereby realizing the relative position between the sealing gasket 6 and the battery pack 3, so that the battery pack 3 can be manually pasted on the corresponding position of the upper cover of the power battery pack 3. Compared with the traditional manual visual pasting of the sealing gasket 6, by supporting and flattening the sealing gasket 6 and positioning the installation position of the sealing gasket 6, the installation accuracy and installation efficiency of the sealing gasket 6 are improved. The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A power battery pack upper cover sealing gasket assembly positioning device, used to position the sealing gasket at the installation position of the battery pack upper cover, characterized in that: The positioning device comprises: A contour plate having an outer profile that follows the contour of the inner ring of the sealing gasket; The positioning mechanism comprises a support arm fixedly held above the profiling plate, and a positioning member arranged on the support arm; the positioning member can be held on the support arm so as to move back and forth in a direction perpendicular to the profiling plate; When the positioning member is operated to move toward the profiling plate, the positioning member passes over the profiling plate from the outer side of the profiling plate and is connected to a preset reference adapter portion on the battery pack.

2. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 1, characterized in that: The number of the positioning members is two, and the two positioning members are disposed at two ends of the support arm in the length direction.

3. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 2, characterized in that: The positioning member is configured as a positioning pin held on the support arm and capable of reciprocating movement, and the reference adapter is configured as a positioning hole receiving the positioning pin.

4. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 3, characterized in that: The circumferential profiles of the two positioning members are arranged differently.

5. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 3, characterized in that: A hemispherical guide portion is formed at the free end of the positioning member for guiding the positioning member to be inserted into the positioning hole.

6. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 3, characterized in that: A guide sleeve is embedded on the support arm. The guide sleeve is extended along its own axial direction. The positioning piece is operable to slide and be retained in the guide sleeve.

7. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 1, characterized in that: A hollow portion is formed in the middle of the profiling plate.

8. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 1, characterized in that: The contoured plate is formed by splicing a plurality of sub-plates.

9. The power battery pack upper cover sealing gasket assembly and positioning device according to any one of claims 1 to 8, characterized in that: The positioning device comprises a base installation part which is clamped and fixed between the profiling plate and the positioning mechanism.

10. The power battery pack upper cover sealing gasket assembly and positioning device according to claim 9, characterized in that: The base installation part is constructed as a frame structure, and the plane where the base installation part is located is parallel to the contour plate.

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