Battery pack mounting structure and vehicle

Abstract

The utility model provides a battery pack mounting structure and a vehicle, and the battery pack mounting structure comprises a mounting base body, a battery pack and a connecting piece, a horizontally extending mounting groove is formed in the mounting base body, and the battery pack comprises a shell; at least part of the shell is arranged in the installation groove in a sliding mode, the installation groove can guide the shell to be installed in or moved out of the installation base body, and a connecting piece is detachably connected between the shell and the installation base body. According to the battery pack mounting structure disclosed by the utility model, the mounting groove which extends horizontally is formed in the mounting base body, so that the shell can be mounted in or moved out of the mounting base body in a sliding manner, and compared with the traditional manner of mounting the battery pack in the vertical direction, the battery pack mounting structure has the advantages that the repeated hoisting and lifting of the battery pack during mounting are reduced, and the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and particularly relates to a battery pack installation structure. The utility model also relates to a vehicle having the above battery pack installation structure. Background Art

[0002] In the design of battery packs for electric vehicles, as a core component of the vehicle's power system, an integrated design concept with a high degree of integration is often adopted. This design not only optimizes the vehicle's space layout, improves the energy density, but also effectively reduces the weight and enhances the energy efficiency and endurance of the whole vehicle by reducing the number of external connectors and wiring harnesses.

[0003] However, while bringing many advantages, this design also brings a corresponding problem. When the battery pack needs to be regularly inspected, maintained, replaced, or in case of sudden failures, its complex connection method becomes a major problem during the disassembly and repair process. The integrated design of the battery pack and the vehicle body means that there may be multiple levels of fastening structures between them, including but not limited to high-strength bolt connections, special snap locks, or even adhesive bonding. This tight combination makes the disassembly process not only require professional tools and equipment, but also requires the operator to have rich technical knowledge and experience, making the disassembly and assembly of the battery pack inconvenient. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a battery pack installation structure to facilitate the installation and disassembly of the battery pack.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A battery pack installation structure includes:

[0007] An installation base, a battery pack, and a connector;

[0008] A horizontally extending installation groove is provided on the installation base. The battery pack includes a housing. At least part of the housing is slidably disposed in the installation groove. The installation groove can guide the housing to be loaded into or removed from the installation base. A connector is detachably connected between the housing and the installation base.

[0009] Further, the cross-section of the installation groove is "U" - shaped and is provided as a pair with the openings facing each other.

[0010] Further, hanging parts are provided on both sides of the housing. The hanging parts on both sides are respectively slidably disposed in the two installation grooves. Mounting holes for mounting the connector are provided on the hanging parts.

[0011] Further, a positioning pin is slidably connected to the housing, and positioning holes are provided on the groove wall of the mounting groove. When the positioning pin is aligned with the positioning holes, the positioning pin can be driven to insert into the positioning holes, thereby locking the position of the housing on the mounting base.

[0012] Further, the positioning holes are provided on the bottom groove wall of the mounting groove. When the positioning pin is aligned with the positioning holes, the positioning pin slides down due to gravity and inserts into the positioning holes.

[0013] Further, a protective plate is connected to the bottom of the mounting base, and the protective plate protrudes downward and covers the lower side of the battery pack.

[0014] Further, a conveying device is provided on the bottom groove wall of the mounting groove, and the conveying device supports and guides the housing to be loaded into or removed from the mounting base.

[0015] Further, the conveying device includes a conveying panel, the conveying panel is fixedly connected to the bottom groove wall of the mounting groove, and the housing can slide on the conveying panel.

[0016] Further, the battery pack includes a battery module and a control module;

[0017] The battery module includes the housing, battery cells, and a first interface; the battery cells are arranged in the housing, and the first interface is arranged on the housing and connected to the battery cells;

[0018] The control module includes a BMS, an electrical unit, a plug, and a second interface; the plug connects the BMS and the electrical unit and is detachably connected to the first interface; the second interface connects the BMS and the electrical unit and is used to connect to an external system.

[0019] For the battery pack mounting structure of the present utility model, by providing a horizontally extending mounting groove on the mounting base, the housing can be slidably loaded into or removed from the mounting base. Compared with the traditional vertical mounting of the battery pack, the repeated lifting and lowering during the installation of the battery pack are reduced, and the installation and disassembly efficiency are improved.

[0020] Secondly, by setting two mounting grooves with opposite openings, the two ends of the housing can be respectively loaded into one mounting groove, so that the mounting grooves do not need to be too large in size to carry the battery pack. Mounting parts are provided on both sides of the housing. The mounting parts not only serve as the connection parts with the mounting base but also can slide in the mounting grooves, with a simple and reliable structure. A positioning pin is provided on the housing, which can insert into the positioning holes to fix the position of the housing after the housing is installed in place, facilitating the subsequent installation of connecting parts.

[0021] Furthermore, the positioning holes are arranged on the groove wall at the bottom of the installation groove. After the housing slides to the installation position, the positioning pins are disengaged from the support and can automatically fall into the positioning holes without the need for an additional power device. A protective plate is arranged at the bottom of the installation base, which can protect the battery pack. Moreover, the protective plate is independent of and does not contact the battery pack, so it is not easy to squeeze the battery pack when the protective plate is collided.

[0022] In addition, a conveying device is arranged on the groove wall of the installation groove, which can make the housing more smooth when being loaded into or removed from the installation base and is not easy to jam. The conveying panel of the conveying device can reduce the friction force when the housing slides, making the installation of the housing more labor-saving. At the same time, the conveying panel can be made thinner and lighter, which is beneficial to reducing the weight. The split-type battery pack is provided, which can realize more convenient disassembly and assembly when the battery pack needs to be repaired. When a certain module fails, the whole module can be quickly replaced, shortening the replacement time.

[0023] Another object of the present invention is to provide a vehicle, which is provided with the battery pack installation structure as described above.

[0024] The vehicle of the present invention has the same beneficial effects as the battery pack installation structure as described above compared with the prior art, and will not be elaborated here. Description of the Drawings

[0025] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0026] Figure 1 is a schematic connection structure diagram of the housing and the positioning pins according to Embodiment 1 of the present invention;

[0027] Figure 2 is the front view of the connection structure of the housing and the positioning pins according to Embodiment 1 of the present invention;

[0028] Figure 3 is a schematic connection structure diagram of the battery pack and the installation base according to Embodiment 1 of the present invention

[0029] Figure 4 is a schematic overall structure diagram of the battery pack according to Embodiment 1 of the present invention;

[0030] Figure 5 is a schematic internal structure diagram of the battery module according to Embodiment 1 of the present invention.

[0031] Description of the Reference Numerals:

[0032] 1. Battery module;

[0033] 101. Housing; 1011. Mounting part; 1012. Mounting hole; 102. Electric core; 103. First interface;

[0034] 2. Control module;

[0035] 201. Second interface;

[0036] 3. Installation base;

[0037] 301. Installation groove; 302. Positioning hole;

[0038] 4. Positioning pin;

[0039] 401. Pin cap;

[0040] 5. Guard plate;

[0041] 6. Conveyor device;

[0042] 601. Conveyor panel;

[0043] 7. Guide sleeve. Detailed implementation mode

[0044] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0045] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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, so it cannot be understood as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connecting piece" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0047] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0048] Embodiment 1

[0049] This embodiment relates to a battery pack mounting structure to make the installation and disassembly of the battery pack more convenient.

[0050] In terms of the overall structure, a battery pack mounting structure of this embodiment includes a mounting base, a battery pack, and a connecting member.

[0051] A horizontally extending mounting groove is provided on the mounting base. The battery pack includes a housing. At least part of the housing is slidably disposed in the mounting groove. The mounting groove can guide the housing to be inserted into or removed from the mounting base. A connecting member is detachably connected between the housing and the mounting base.

[0052] With the above settings, a horizontally extending mounting groove is provided on the mounting base, which can allow the housing to be slidably inserted into or removed from the mounting base. Compared with the traditional vertical installation of the battery pack, the repeated lifting and lowering of the battery pack during installation are reduced, the installation and disassembly efficiency is improved, and the installation and disassembly are more convenient.

[0053] Based on the above overall introduction, referring to Figures 1 to 3 As shown, when the mounting base 3 is the vehicle body, in the conventional battery pack installation process, the battery pack is usually vertically installed on the vehicle body, and lifting or hoisting equipment is required to lift and transport the battery pack. In this embodiment, by providing a horizontally extending mounting groove 301 on the mounting base 3, the housing 101 can be slidably inserted into or removed from the mounting base 3. Compared with the traditional vertical installation of the battery pack, the repeated lifting and lowering of the battery pack during installation are reduced, and the installation and disassembly efficiency is improved. For the specific structure of the connecting member, the connecting member of this embodiment is a bolt, and the housing 101 is connected to the mounting base 3 through the bolt. Of course, the method of fixing with a clamping member or a pin is also possible. Similarly, the mounting base 3 can also be the battery pack connection part of any device or apparatus.

[0054] For the specific structure of the mounting groove 301, the cross-section of the mounting groove 301 in this embodiment is "U" shaped and is provided as a pair with the openings facing each other. By providing two mounting grooves 301 with the openings facing each other, both ends of the housing 101 can be slidably inserted into the mounting groove 301, and the inner walls of the mounting groove 301 support the housing 101 from both ends. Even if the depth of the mounting groove 301 is small, the housing 101 can be well connected. It should be noted that the mounting groove 301 can also adopt other cross-sectional shapes, such as "C" shaped or "T" shaped, etc., which can also meet the structural requirements for the housing 101 to be slidably installed in the mounting groove 301.

[0055] For the purpose of optimizing the structure of the housing 101, mounting parts 1011 are provided on both sides of the housing 101 in this embodiment. The two mounting parts 1011 on both sides are respectively slidably arranged in two mounting grooves 301, and mounting holes 1012 for installing connecting parts are provided on the mounting parts 1011. The mounting parts 1011 are fixedly connected to the main body frame of the housing 101 and are used to connect with the mounting base 3 through connecting parts. At the same time, the mounting parts 1011 can also slide in the mounting grooves 301 to support the housing 101. As a preferred implementation manner, the mounting parts 1011 in this embodiment are welded to the side walls of the main body of the housing 101, and three are arranged at intervals on each side, which can reduce the use of materials and the overall package weight, and achieve the lightweight design of the battery pack. A total of eight mounting holes 1012 are provided for installing connecting parts, and are symmetrically arranged on both sides of the housing 101. On one side of the housing 101, two mounting holes 1012 are provided on the middle mounting part 1011, and one mounting hole 1012 is provided on each of the mounting parts 1011 at both ends.

[0056] Specifically, for the positioning of the housing 101 during installation, a positioning pin 4 is slidably connected to the housing 101, and positioning holes 302 are provided on the groove walls of the mounting grooves 301. When the positioning pin 4 is aligned with the positioning holes 302, the positioning pin 4 can be driven to insert into the positioning holes 302, forming the position locking of the housing 101 on the mounting base 3. Before the housing 101 is installed, the positioning pin 4 is received on the mounting part 1011. After the mounting part 1011 is inserted into the mounting groove 301 along the direction of the mounting groove 301, the positioning pin 4 is held in the mounting part 1011 under extrusion until the housing 101 moves to the installation position, and then the positioning pin 4 can be inserted into the positioning holes 302 when it is aligned with the positioning holes 302, locking the housing 101 on the mounting base 3.

[0057] Furthermore, regarding the driving method of the positioning pin 4, in this embodiment, the positioning holes 302 are provided on the bottom groove wall of the mounting groove 301. When the positioning pin 4 is aligned with the positioning holes 302, the positioning pin 4 slides down and inserts into the positioning holes 302 due to gravity. By setting the positioning holes 302 on the bottom groove wall of the mounting groove 301, after the housing 101 slides to the installation position, the positioning pin 4 is separated from the support and can automatically fall into the positioning holes 302 without an additional power device.

[0058] As a preferred implementation form, a guide sleeve 7 is embedded in the mounting portion 1011 of the positioning pin 4 in this embodiment. The guide sleeve 7 is in interference fit with the mounting portion 1011. A flange is provided at the bottom end of the guide sleeve 7, and the flange abuts against the bottom end of the mounting portion 1011. The bottom end of the positioning pin 4 is a frustum of a cone, and the bottom end of the frustum of the cone is a small head, which is convenient for inserting into the positioning hole 302. A pin cap 401 with a larger diameter is provided at the top end of the positioning pin 4. The pin cap 401 is slidably connected in the mounting portion 1011, which serves to prevent the positioning pin 4 from disengaging from the mounting portion 1011. The mounting portion 1011 and the guide sleeve 7 communicate upward, so as to facilitate loading the positioning pin 4 into the guide sleeve 7 from the upper part downward. Two positioning pins 4 are provided in this embodiment, which are respectively arranged on the two mounting portions 1011 on both sides of the housing 101 near the front end of the battery pack.

[0059] It should be noted that the positioning hole 302 can also be arranged on other inner walls of the installation groove 301, and the positioning pin 4 is correspondingly arranged on the side of the mounting portion 1011 opposite to the positioning hole 302. Regarding the driving mode of the positioning pin 4, an elastic member can be arranged between the guide sleeve 7 and the positioning pin 4, and the elastic force of the elastic member is used to push the positioning pin 4 towards the positioning hole 302.

[0060] For the purpose of protecting the battery pack, a protection plate 5 is connected to the bottom of the installation base 3. The protection plate 5 protrudes downward and covers the lower side of the battery pack. Arranging the protection plate 5 at the bottom of the installation base 3 can protect the battery pack, and the protection plate 5 is independent of the battery pack and does not contact it, so it is not easy to squeeze the battery pack when the protection plate 5 is collided. Preferably, the protection plate 5 is bolted to the installation base 3, and the bolts are arranged at the edge of the protection plate 5, so that the height of the bolts is higher than the height of the downward protrusion of the protection plate 5 after installation, and the bolts are not easily damaged by external objects during vehicle driving.

[0061] To facilitate the installation of the housing 101 on the installation base 3, a conveying device 6 is arranged on the bottom groove wall of the installation groove 301. The conveying device 6 supports and guides the housing 101 to be loaded into or unloaded from the installation base 3. Arranging the conveying device 6 on the groove wall of the installation groove 301 can make the housing 101 more smooth when being loaded into or unloaded from the installation base 3, not easy to jam, and at the same time can also reduce the wear of the mounting portion 1011 on the inner wall of the installation groove 301.

[0062] Specifically, the conveying device 6 includes a conveying panel 601, which is fixedly connected to the bottom groove wall of the installation groove 301, and the shell 101 can slide on the conveying panel 601. The conveying panel 601 is made of a material with a small friction coefficient. When the mounting part 1011 slides on the conveying panel 601, the sliding resistance is small, and the force required to push the shell 101 is also small, which can improve the assembly efficiency of the battery pack. The positions corresponding to the positioning holes 302 and the mounting holes 1012 on the conveying panel 601 are reserved with clearance holes to facilitate the installation of the connector or the positioning pin 4. Of course, the conveying panel 601 can also be arranged in sections, and the positioning holes 302 and the mounting holes 1012 can be arranged between two sections of the conveying panel 601. The connection method of the conveying panel 601 to the groove wall of the installation groove 301 can be bolt connection or gluing. The present embodiment is preferably gluing, which will not damage the self structure of the conveying panel 601.

[0063] Regarding the specific material selection of the conveying panel 601, the conveying panel 601 of this embodiment is made of ceramic material, which has high surface hardness and low roughness, and the smooth surface is convenient for the sliding of the mounting part 1011. Of course, the conveying panel 601 can also be made of polyvinyl chloride plate, nylon plate or wear-resistant metal alloy plate, as long as it can meet the requirements of high strength and low friction.

[0064] It should be noted that the conveying device 6 may also be in the form of rollers, conveyor belts, etc., but these structures are thicker than the conveying panel 601 of this embodiment, and waste more space for the installation base 3. The conveying panel 601 of this embodiment is thinner, which can reduce the space occupied by the installation base 3, and is also lighter in weight.

[0065] Based on the optimization purpose of the convenience of battery pack disassembly, refer to Figure 4 and Figure 5 As shown, the battery pack of this embodiment includes a battery module 1 and a control module 2.

[0066] The battery module includes a housing 101 , a battery cell 102 , and a first interface 103 . The battery cell 102 is disposed in the housing 101 , and the first interface 103 is disposed on the housing 101 and connected to the battery cell 102 .

[0067] The control module 2 includes a BMS, an electrical unit, a plug-in, and a second interface 201. The plug-in connects the BMS and the electrical unit and is detachably connected to the first interface 103; the second interface 201 connects the BMS and the electrical unit and is used to connect to an external system.

[0068] The battery pack of this embodiment adopts a split design. The battery cells 102 are arranged in the battery module 1, and the BMS and electrical units are arranged in the control module 2. They are connected through the first interface 103 and a plug-in, which can achieve the convenient separation and combination of the battery module 1 and the control module 2. During specific implementation, the battery module 1 and the control module 2 can be pre-assembled respectively. When a certain module of the battery pack fails, the module can be quickly replaced, and the removed module can be repaired, which can greatly shorten the maintenance downtime of the electrical equipment supporting the battery pack.

[0069] It should be noted that the control module 2 can also be configured with a variety of battery modules 1, and battery modules with different shapes and capacities can be selected and matched to meet the power requirements of different electrical equipment. The BMS, electrical components, etc. are not arranged in the battery module 1, which can provide a larger available layout space for the battery cells 102, making the layout of the battery cells 102 flexible and variable, which is beneficial to improving the energy density of the battery pack, and the volume of the battery module is smaller under the same power.

[0070] In this embodiment, the battery module 1 is used to output power, including a cuboid housing 101. The battery cells 102 and the cooling system are arranged inside the housing 101. The battery cells 102 and the cooling system are connected to the first interface 103 through a wire harness. The cooling system adopts the form of a liquid cooling plate and is arranged at the bottom inside the housing 101 in contact with the battery cells 102.

[0071] Secondly, the control module 2 is used to provide the battery pack control strategy, integrated with the BMS and electrical components, and is connected to the first interface 103 through a plug-in to achieve the electrical connection between the control module 2 and the battery module 1. The control module 2 is provided with a second interface 201, which is used for electrical connection to an external control system to realize the control of the control module 2 by external equipment. The structural connection method between the control module 2 and the battery module 1 is a bolt connection, and a sealing foam is clamped between the control module 2 and the battery module 1 to achieve the sealing between the battery module 1 and the control module 2. Of course, other detachable connection methods can also be adopted between the control module 2 and the battery module 1, such as snap connection.

[0072] By modularizing the design of the battery pack, the convenient separation and combination of the battery module 1 and the control module 2 can be achieved. At the same time, the housing 101 can provide a larger available layout space for the battery cells 102, making the layout of the battery cells 102 flexible and variable, which is beneficial to improving the energy density of the battery pack.

[0073] The assembly method of the battery pack in this embodiment is as follows: Assemble the battery module 1 and the control module 2, then hoist the whole battery pack, insert the positioning pin 4 into the guide sleeve 7, align the hanging part 1011 and slide it into the installation groove 301. When the battery pack slides to the specified position on the installation base 3, the positioning pin 4 moves downward under the action of gravity and inserts into the positioning hole 302, locking the position of the battery pack and the installation base 3. Then install each connecting piece through the hanging hole 1012.

[0074] Embodiment 2

[0075] This embodiment relates to a vehicle, which is provided with the battery pack installation structure in Embodiment 1.

[0076] For the vehicle in this embodiment, by setting the battery pack installation structure in Embodiment 1, it can make the disassembly and assembly of the vehicle's battery pack more convenient, shorten the construction time and improve work efficiency. Using a split battery pack can also achieve more convenient disassembly and assembly when the vehicle needs to repair the battery pack. When a certain module fails, the whole module can be quickly replaced, shortening the replacement time.

[0077] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery pack installation structure, characterized in that: include: Install the substrate, battery pack and connectors; The mounting base is provided with a horizontally extending mounting groove, and the battery pack includes a shell; at least a portion of the shell is slidably disposed in the mounting groove, and the mounting groove can guide the shell to be installed into or removed from the mounting base, and a connector is detachably connected between the shell and the mounting base.

2. The battery pack installation structure according to claim 1, characterized in that: The cross section of the mounting groove is "U"-shaped, and is arranged as a pair with openings facing each other.

3. The battery pack installation structure according to claim 2, characterized in that: Mounting parts are arranged on two sides of the shell, and the mounting parts on the two sides are respectively slidably arranged in the two mounting grooves, and mounting holes for mounting the connecting member are arranged on the mounting parts.

4. The battery pack installation structure according to claim 2, characterized in that: A positioning pin is slidably connected to the shell, and a positioning hole is provided on the groove wall of the installation groove. When the positioning pin is facing the positioning hole, the positioning pin can be driven to be inserted into the positioning hole, thereby locking the position of the shell on the installation base.

5. The battery pack installation structure according to claim 4, characterized in that: The positioning hole is arranged on the bottom groove wall of the installation groove. When the positioning pin faces the positioning hole, the positioning pin slides down and is inserted into the positioning hole due to gravity.

6. The battery pack installation structure according to claim 5, characterized in that: A guard plate is connected to the bottom of the mounting base, and the guard plate is convex downward and covers the lower side of the battery pack.

7. The battery pack installation structure according to claim 2, characterized in that: A conveying device is arranged on the bottom groove wall of the installation groove, and the conveying device supports and guides the shell to be installed into or removed from the installation base.

8. The battery pack installation structure according to claim 7, characterized in that: The conveying device comprises a conveying panel, the conveying panel is fixedly connected to the bottom groove wall of the mounting groove, and the shell can slide on the conveying panel.

9. The battery pack installation structure according to any one of claims 1 to 8, characterized in that: The battery pack includes a battery module and a control module; The battery module comprises the shell, a battery cell and a first interface; the battery cell is arranged in the shell, and the first interface is arranged on the shell and connected to the battery cell; The control module includes a BMS, an electrical unit, a plug-in, and a second interface; the plug-in connects the BMS and the electrical unit and is detachably connected to the first interface; the second interface connects the BMS and the electrical unit and is used to connect to an external system.

10. A vehicle, characterized in that: The vehicle is provided with the battery pack mounting structure according to any one of claims 1 to 9.

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