Connecting device of battery pack

Abstract

A connecting device of a battery pack comprises a plurality of adjusting mechanisms and an electric control assembly. The adjusting mechanisms are arranged on at least two opposite sides of the battery pack, and each adjusting mechanism comprises a fixing assembly and a moving module. One end of the fixing assembly is fixed to a vehicle body. The moving module is movably connected to the fixing assembly and comprises a connecting part connected with the battery pack so as to drive the battery pack to move between a first position range and a second position range. The electric control assembly is electrically connected to the adjusting mechanism and used for sending out a control signal to control the moving module to move between the first position range and the second position range, and therefore the height position of the battery pack is adjusted.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, and in particular to a connection device for adjusting the position of a battery pack. Background Technology

[0002] In recent years, both the new energy vehicle industry and the energy storage industry have experienced rapid development. A battery module, a component of a battery system, typically consists of several cells, connectors, a battery management system, and a casing. As a key component for energy storage, it is a crucial part of the new energy battery pack, playing a vital role in the operation of new energy vehicles and the normal functioning of the entire vehicle system. Current battery pack installation methods involve rigidly locking the battery pack to the vehicle frame via fixed flanges on both sides of the battery pack housing. This method results in the battery pack's position and height being unadjustable once fixed. However, the performance of new energy vehicles is improving year by year, and the existing battery pack fixing structure cannot simultaneously guarantee good vehicle stability and road passability. Therefore, improving the connection method between the battery pack and the vehicle body is an urgent issue that needs to be addressed. Summary of the Invention

[0003] The purpose of this application is to provide a connection device that allows for adjustment of the height of a battery pack.

[0004] Another objective of this application is to provide a system that can dynamically adjust the position of the battery pack relative to the vehicle body according to the actual driving conditions, so as to ensure that the vehicle has good stability and road passability.

[0005] To achieve the above objectives, this application provides a battery pack connection device for connecting the battery pack to a vehicle body. The connection device includes multiple adjustment mechanisms and an electronic control component. The multiple adjustment mechanisms are disposed on at least two opposite sides of the battery pack, and each adjustment mechanism includes: a fixing component, one end of which is fixed to the vehicle body; and a moving module, movably connected to the fixing component and including a connecting portion, the connecting portion connecting to the battery pack and driving the battery pack to move between a first position range and a second position range. The first position range is closer to the vehicle body than the second position range. The electronic control component is electrically connected to the adjustment mechanism and is used to send control signals to control the movement of the moving module between the first position range and the second position range.

[0006] Optionally, the moving module includes a sleeve that is movably fitted onto the fixing component, the battery pack includes a side plate and a bottom plate, and the sleeve is fixed to the side plate and / or bottom plate of the battery pack.

[0007] Optionally, the moving module further includes an actuator and a drive member, the actuator being connected to the sleeve, and the drive member responding to the control signal to control the actuator to move the sleeve relative to the fixed component between the first position range and the second position range.

[0008] Optionally, the battery pack includes multiple corner portions, and the multiple adjustment mechanisms are respectively disposed at the multiple corner portions of the battery pack.

[0009] Optionally, the electronic control component includes a control unit and a controller. The controller is electrically connected between the control unit and the plurality of adjustment mechanisms. The controller issues the control signal according to the control of the control unit to control the movement of the moving module between the first position range and the second position range. The first position range includes an initial position.

[0010] Optionally, the moving module moves from the second position range to the initial position of the first position range in response to the control of the control unit.

[0011] Optionally, the electronic control component further includes a vehicle navigation system, the controller is electrically connected to the vehicle navigation system, and the controller includes a judgment circuit that determines whether to allow the moving module to move from the first position range to the second position range based on data from the vehicle navigation system.

[0012] Optionally, the data of the vehicle navigation system includes speed limit change data, which includes a change between a first speed limit range and a second speed limit range, wherein the vehicle speed in the second speed limit range is greater than the vehicle speed in the first speed limit range. In response to the second speed limit range changing to the first speed limit range, the controller controls the motion module to move to the initial position.

[0013] Optionally, the controller's judgment circuit is configured to determine the vehicle's ignition off state, wherein in response to the vehicle being parked and ignition off, the controller controls the moving module to move to the initial position.

[0014] Optionally, the controller includes a control prompt circuit. In response to the operation of the control unit, the control prompt circuit generates prompt information and provides it to the user through the vehicle navigation system.

[0015] Optionally, the prompt information generated by the control prompt circuit includes user voice prompt information and / or text prompt information, and the user confirms the user voice prompt information or the text prompt information by clicking through the vehicle navigation system.

[0016] Optionally, the control unit of the electronic control component includes a height adjustment component and a low adjustment component. The height adjustment component is controlled to adjust the moving module from the second position range to the first position range, and the low adjustment component is controlled to adjust the moving module from the first position range to the second position range.

[0017] In the battery pack connection device provided in this application embodiment, the battery pack is connected to the vehicle body via a height-adjustable connection device, allowing for dynamic adjustment of the battery pack's installation height. This height can be lowered or raised according to different road conditions, improving vehicle stability or passability. Furthermore, the connection device simplifies the assembly process, significantly reducing assembly costs. The manufacturing processes for related parts are simple, and dimensional control is easy, contributing to improved production yield. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection device for the battery pack according to an embodiment of this application.

[0019] Figure 2 This is a block diagram illustrating the structure of the battery pack connection device according to an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the connection device of this application connecting the battery pack to the vehicle body.

[0021] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the connection device in an embodiment of this application, which is installed in the battery pack.

[0022] Figure 5 for Figure 4 A schematic diagram of the installation and positioning of the adjustment mechanism.

[0023] Figure 6 This is a partially enlarged perspective view of the battery pack connection device according to an embodiment of this application.

[0024] Figure 7 This is a cross-sectional structural diagram of the connection device installed on the battery pack according to an embodiment of this application.

[0025] Figure 8 This is a schematic diagram of the connecting device in its initial position according to an embodiment of this application.

[0026] Figure 9 for Figure 8 A schematic diagram showing the connecting device moving from the first position range to the second position range. Detailed Implementation

[0027] To facilitate understanding of the technical features, content, advantages, and effects of this application, this application is described in detail below with reference to the accompanying drawings and in the form of embodiments. The accompanying drawings are intended only for illustration and auxiliary explanation and may not represent the actual scale and precise configuration of this application after implementation. Therefore, the scale and configuration of the accompanying drawings should not be used to interpret or limit the scope of this application in actual implementation.

[0028] The following descriptions of embodiments are taken with reference to the accompanying drawings, illustrating specific embodiments in which this application can be implemented. Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "top," "bottom," "horizontal," and "vertical," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative and understanding purposes only, and not for limiting the application. Throughout the specification and claims, unless explicitly specified otherwise, the terms "a" and "described" encompass a description including "a or at least one" of the stated elements or components. Furthermore, as used herein, the singular article also includes a description of multiple elements or components unless clearly apparent from the specific context.

[0029] The following description, with reference to the accompanying drawings, illustrates various embodiments of this application. For ease of understanding, the same elements in the following embodiments are indicated by the same symbols. It should be noted that the combination of various elements in this application preferably forms the above-described multiple embodiments, but this should not be construed as a limitation of this application. That is, the various elements in this application can have more combinations, and are not limited to the above-described multiple embodiments.

[0030] The battery pack connection device provided in this application embodiment is applicable to all new energy vehicle industries. The application scope includes, but is not limited to, new energy vehicles, and the applicable vehicles can be sedans, SUVs, MPVs, buses, or special new energy vehicles, etc. (Refer to...) Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the battery pack connection device according to an embodiment of this application. Figure 2 An exploded block diagram of the connection device for the battery pack according to an embodiment of this application. Figure 3 This is a schematic diagram illustrating the connection device of this application to the battery pack being connected to the vehicle body. Figures 1 to 3As shown, this application provides a connecting device 1 for connecting and securely supporting a battery pack 3 to a vehicle body 5. The connecting device 1 includes multiple adjustment mechanisms 10 and electronic control components 20. The battery pack 3 consists of several battery cells, a battery management system, and a casing. Since the features of this application do not lie in the detailed structure of the battery pack known to those skilled in the art, the detailed structure of the battery pack is not described in detail here. In some embodiments, the adjustment mechanisms 10 are disposed on at least two opposite sides of the battery pack 3, such as the upper and lower sides or the left and right sides, so as to stably and securely connect the battery pack 3 to the vehicle body. Preferably, as Figure 1 As shown, the battery pack 3 has multiple corner portions 303 around its perimeter, and the adjustment mechanism 10 is respectively provided at the multiple corner portions 303 of the battery pack 3.

[0031] like Figure 1 As shown, the electronic control component 20 is electrically connected to the adjustment mechanism 10 via cable 201. In this embodiment, the electronic control component 20 includes a control unit 21, a controller 22, and a vehicle navigation system 23 that are electrically connected to each other, and the controller 22 is electrically connected between the control unit 21 and the plurality of adjustment mechanisms 10. In some embodiments, the controller 22 may further include a hardware chip, which may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. In other embodiments, the electronic control component 20 may only include the control unit 21 and the controller 22. It is worth mentioning that, in addition to being connected to the adjustment mechanism 10 via wired transmission through cable 201, the electronic control component 20 can also be connected to the adjustment mechanism 10 via wireless transmission through a wireless transmission element, such as Bluetooth, Wi-Fi, etc. This application does not have any particular limitation.

[0032] like Figure 3 As shown, the connecting device 1 of this application connects the battery pack 3 to the bottom of the interior space of the vehicle body 5. In some embodiments, the battery pack 3 may also be located at the bottom of the rear compartment of the vehicle body 5 (not shown). Specifically, the top of the battery pack 3 faces the vehicle body 5, and the bottom of the battery pack 3 faces the road surface.

[0033] Reference Figures 4 to 6 and cooperate Figure 3 , Figure 4and Figure 5 This is a schematic diagram of the structure of the adjustment mechanism 10 of the connection device according to an embodiment of this application, installed on the battery pack 3. Figure 6 This is a partially enlarged perspective view of the adjustment mechanism 10. Each adjustment mechanism 10 includes a fixing component 11 and a moving module 12. One end of the fixing component 11 is fixed to the bottom of the vehicle body 5, and the other end, together with the moving module 12, is installed at the corner 303 of the battery pack 3. Specifically, the fixing component 11 can be a rod and can be fixed to the bottom of the vehicle body 5 by locking, welding, snap-fitting, or other fixing processes. For example, hexagonal flange bolts (not shown) can be used to lock onto the end edge of the fixing component 11; this application is not particularly limited. In this embodiment, as... Figure 6 As shown, the moving module 12 includes a sleeve 121, which is movably fitted onto the fixing component 11. The battery pack 3 includes a side plate 301 and a bottom plate 302. Specifically, the sleeve 121 can be fixed to the side plate 301 and the bottom plate 302 of the battery pack 3 by welding. In this embodiment, the adjustment mechanism 10 is installed and fixed to the corner portion 303 of the battery pack 3 in the above manner, and then the bottom end of the sleeve 121 is electrically connected to the adjustment mechanism 10 and the electronic control component 20 (e.g., ...) via a cable 201. Figure 1 (As shown).

[0034] Reference Figures 7 to 9 , Figure 7 Example: Cross-sectional view of the connecting device 10 installed in the battery pack 3. Figure 7 As shown, the moving module 12 also includes an actuator 122, a drive member 123, and a connecting portion 124. Specifically, a portion of the actuator 122 is connected to the sleeve 121, and another portion is connected to the fixing assembly 11. The drive member 123 drives the actuator 122 and causes it to displace, thereby making the adjusting mechanism 10 a telescopic device. In some embodiments, the operating principle of the actuator 122 and the drive member 123 can employ devices with height-adjustable functions, such as spring actuation, electromagnetic actuation, hydraulic actuation, or pneumatic actuation. For example, the components of the actuator 122 and the drive member 123 can be a spring or a toothed rail and a servo motor, an electromagnetic coil and a magnet, a hydraulic rod, or a pneumatic rod. It should be noted that... Figure 7 The structural relationship between the actuator 122 and the drive member 123 is only shown as an example; their detailed structure is not described in detail. Figures 7 to 9 As shown, the connecting part 124 of the moving module 12 can be connected to the battery pack 3 through a welding process, and the battery pack 3 is moved between the first position range P1 and the second position range P2 according to the operation of the actuator 122 and the drive member 123, and the first position range P1 is closer to the vehicle body 5 than the second position range P2 (see reference). Figure 3 ), and the first position range includes the initial position P0 (refer to Figure 9 (See below for details).

[0035] Reference Figure 2 and Figures 8 to 9 The controller 22 of the electronic control assembly 20 sends a control signal according to the control of the control unit 21 to control the movement of the moving module 12 between the first position range P1 and the second position range P2. Specifically, the drive member 123 responds to the control signal to control the actuator 122 to move the sleeve 121 relative to the fixed assembly 11 between the first position range P1 and the second position range P2. (Refer to...) Figure 1 The control unit 21 of the electronic control assembly 20 includes a height adjustment member 211 and a height adjustment member 212. The height adjustment member 211 is controlled to move the moving module 12 from a second position range P2 to a first position range P1, and the height adjustment member 212 is controlled to move the moving module 12 from the first position range P1 to the second position range P2. In this embodiment, the control unit 21 also includes a reset member 213, which allows the moving module 12 to move to an initial position P0 under the control of the reset member 213. In some embodiments, the control unit 21 may be controlled via touch or a knob and located on the center console of the vehicle; alternatively, the control unit 21 may be a separate handheld component electrically connected to the controller 22.

[0036] like Figure 2 As shown, the controller 22 of the electronic control component 20 includes a judgment circuit 221 and a control prompt circuit 222, and is electrically connected to the vehicle navigation system 23. In some embodiments, the vehicle navigation system 23 includes a display panel and a voice module (not shown) and may be built into the vehicle system or installed in a mobile electronic device, such as a mobile phone or tablet. (See reference...) Figure 8 and Figure 9 and cooperate Figure 3 The controller 22 sends control signals to control the movement of the moving module 12 between the first position range P1 and the second position range P2, based on the control of the control unit 21. Figure 8 As shown, when the vehicle is driving on a highway, the height of the battery pack 3 is lowered via the retractable connecting device 1, thereby lowering the vehicle's center of gravity and improving high-speed stability. Figure 9 As shown, when the vehicle is in a non-highway driving mode, the height of the battery pack 3 is raised through the retractable connecting device 1, which increases the vehicle's passability.

[0037] In detail, the driver manually adjusts the height adjustment components 211 and 212 of the control unit 21 according to road conditions, and the controller 22 controls the adjustment mechanism 10 to adjust the height of the battery pack 3. The judgment circuit 221 of the controller 22 determines whether to allow the moving module 12 to move from the first position range P1 to the second position range P2 based on the data of the vehicle navigation system 23, that is, to determine whether to lower the battery pack height. For example, when the vehicle enters a highway, the controller 22 will lower the height of the battery pack 3 according to the navigation data, thereby lowering the center of gravity of the car and making the vehicle more stable on highways. Preferably, the data of the vehicle navigation system 23 includes at least the speed limit and the driving area, wherein the driving area may include uneven ground, slopes, or flat ground. In some embodiments, when the vehicle is parked near a highway exit, the controller 22 will raise the battery pack height according to the navigation data, increasing the height of the battery pack above the ground, reducing the risk of bottoming out, and making the battery pack safer.

[0038] Continue to refer to Figures 2 to 3 and Figures 8 to 9 The connection device 1 of the battery pack 3 provided in this application also includes a variety of reset mechanisms. Specifically, the moving module 12 moves from the second position range P2 to the initial position P0 of the first position range P1 in response to the control of the control unit 21. In detail, the reset mechanism includes (1) manually operating the control unit 21 to reset during vehicle use; (2) when the car is exiting the highway, near the highway exit, the controller 22 will automatically reset the battery pack 3 according to the navigation data; and (3) after the vehicle is parked and turned off, the controller 22 will automatically determine the battery pack 3 reset operation according to the state of the battery pack 3, so that the battery pack 3 returns to the default state, and when the battery pack 3 is in the default state, the battery pack 3 is at its highest height above the ground.

[0039] In one embodiment, the data of the vehicle navigation system 23 includes speed limit change data, which includes a change between a first speed limit range and a second speed limit range, wherein the vehicle speed in the second speed limit range is greater than the vehicle speed in the first speed limit range. In some embodiments, the vehicle speed in the first speed limit range may be 0 to 50 km / h, and the vehicle speed in the second speed limit range may be greater than 50 km / h, but this application is not limited thereto. Specifically, in response to the second speed limit range changing to the first speed limit range, the controller 22 controls the moving module 12 to move to the initial position P0. In one embodiment, the judgment circuit 221 of the controller 22 is configured to determine the vehicle's ignition off state. Specifically, in response to the vehicle being in a parked and ignition off state, the controller 22 controls the moving module 12 to move to the initial position P0.

[0040] In some embodiments, the control prompt circuit 222 of the controller 22 responds to the control unit 21's operation, generates prompt information, and provides it to the user (i.e., the driver) through the vehicle navigation system 23. The prompt information generated by the control prompt circuit 222 includes user voice prompts and / or text prompts, and the driver confirms the user voice prompts or text prompts through the vehicle navigation system 23. In some embodiments, when manually adjusting the control unit 21, the vehicle navigation system 23 or the vehicle system will provide the driver with voice and text prompts, allowing the driver to confirm within the vehicle navigation system 23. At this time, the controller 22 will also analyze the road conditions and the driver's instructions. For example, if the driver still chooses to operate the lowering mechanism 212 of the control unit 21 in non-highway conditions, the controller 22 determines that there is a risk of bottoming out and requires the driver to reconfirm the road conditions. The controller 22 will feed back the operation information to the vehicle navigation system 23 and prompt the driver with voice and text prompts, requesting the driver to confirm the operation again. Only after ruling out the possibility of accidental touch can the controller 22 control the operation of the battery pack 3.

[0041] In summary, the battery pack connection device provided in this application embodiment connects to the vehicle body via a height-adjustable connection device, allowing for dynamic adjustment of the battery pack's installation height. This height can be lowered or raised according to different road conditions, improving vehicle stability or passability. Furthermore, the connection device simplifies the assembly process, significantly reducing assembly costs. The manufacturing processes for related parts are simple, and dimensional control is easy, contributing to improved production yield.

[0042] It should be noted that the "circuit" described herein may be or may include: an application-specific integrated circuit, an electronic circuit, a microcontroller executing one or more software or firmware programs, a processor (shared, dedicated, or grouped) and / or memory (shared, dedicated, or grouped), a combinational logic circuit, and / or other suitable components that provide the functionality described.

[0043] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery pack connection device for connecting the battery pack to a vehicle body, characterized in that, The connecting device includes: Multiple adjustment mechanisms are disposed on at least two opposite sides of the battery pack, and each of the adjustment mechanisms includes: A fixing component, one end of which is fixed to the vehicle body; and A mobile module, movably connected to the fixed component, includes a connecting portion that connects to the battery pack and moves the battery pack between a first position range and a second position range, wherein the first position range is closer to the vehicle body than the second position range; and An electronic control component is electrically connected to the adjustment mechanism and is used to send control signals to control the movement of the moving module between the first position range and the second position range.

2. The battery pack connection device as described in claim 1, characterized in that, The moving module includes a sleeve that is movably fitted onto the fixing component. The battery pack includes a side plate and a bottom plate, and the sleeve is fixed to the side plate and / or bottom plate of the battery pack.

3. The battery pack connection device as described in claim 2, characterized in that, The moving module further includes an actuator and a drive component. The actuator is connected to the sleeve, and the drive component responds to the control signal to control the actuator to move the sleeve relative to the fixed component between the first position range and the second position range.

4. The battery pack connection device as described in claim 1, characterized in that, The battery pack includes multiple corner portions, and the multiple adjustment mechanisms are respectively disposed at the multiple corner portions of the battery pack.

5. The battery pack connection device as described in claim 1, characterized in that, The electronic control component includes a control unit and a controller. The controller is electrically connected between the control unit and the plurality of adjustment mechanisms. The controller issues the control signal according to the control of the control unit to control the movement of the moving module between the first position range and the second position range. The first position range includes the initial position.

6. The battery pack connection device as described in claim 5, characterized in that, The moving module moves from the second position range to the initial position of the first position range in response to the control of the control unit.

7. The battery pack connection device as described in claim 5, characterized in that, The electronic control component also includes a vehicle navigation system. The controller is electrically connected to the vehicle navigation system, and the controller includes a judgment circuit that determines whether to allow the moving module to move from the first position range to the second position range based on data from the vehicle navigation system.

8. The battery pack connection device as described in claim 7, characterized in that, The data of the vehicle navigation system includes speed limit change data, which includes a change between a first speed limit range and a second speed limit range, wherein the vehicle speed in the second speed limit range is greater than the vehicle speed in the first speed limit range, and in response to the second speed limit range changing to the first speed limit range, the controller controls the moving module to move to the initial position.

9. The battery pack connection device as described in claim 7, characterized in that, The controller's judgment circuit is configured to determine the vehicle's ignition off state, wherein in response to the vehicle being parked and ignition off, the controller controls the moving module to move to the initial position.

10. The battery pack connection device as claimed in claim 7, characterized in that, The controller includes a control prompt circuit, wherein in response to the control unit's operation, the control prompt circuit generates prompt information and provides it to the user through the vehicle navigation system.

11. The battery pack connection device as claimed in claim 10, characterized in that, The prompt information generated by the control prompt circuit includes user voice prompts and / or text prompts, and the user confirms the user voice prompts or text prompts by clicking on the vehicle navigation system.

12. The battery pack connection device as described in claim 5, characterized in that, The control unit of the electronic control component includes a height adjustment component and a low adjustment component. The height adjustment component is controlled to adjust the moving module from the second position range to the first position range, and the low adjustment component is controlled to adjust the moving module from the first position range to the second position range.

13. The battery pack connection device as claimed in claim 12, characterized in that, The control unit also includes a reset component, and the moving module moves to the initial position according to the control of the reset component.

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