A compact battery module equalizer box structure

Abstract

The utility model relates to battery module equalizer technical field, specifically disclose a compact rechargeable battery module equalizer box structure, including up and down setting and connection's installation box and control box, the installation box inside is provided with mounting bracket, the mounting bracket from top to bottom has multilayer assembly bottom plate successively, the assembly bottom plate surface is equipped with a plurality of along assembly bottom plate length direction equidistance arrangement's measurement and charge and discharge module, the installation box top is provided with touch -sensitive screen, the mounting bracket on the left and right sides of installation box inside respectively corresponding installation has a plurality of cooling fans, the utility model's assembly bottom plate cooperates with the C -shaped groove of mounting bracket through drawer type slide, realizes the convenient installation and disassembly of measurement and charge and discharge module, through the cooperation of cooling fan and installation box box body structure's ventilation window, vent hole and heat dissipation through slot, can ensure that the inside of box still can good heat dissipation when installing more measurement and charge and discharge module.

Description

Technical Field

[0001] This utility model relates to the field of battery module equalizer technology, and specifically discloses a compact rechargeable battery module equalizer housing structure. Background Technology

[0002] As a device for managing and protecting lithium batteries, a battery equalizer monitors and adjusts the voltage of each individual battery cell to ensure that the voltage of each cell in the battery pack remains within the minimum range of difference, and to achieve a voltage difference between each battery cell approaching zero millivolts (0 mV), thereby extending the battery pack's lifespan and maximizing its output capacity performance. In the structure of a battery equalizer, it generally consists of a housing and a measurement module responsible for monitoring and managing the battery pack's status. The housing structure is a key part that carries and protects the measurement module, and its design rationality directly affects the equalizer's performance and reliability.

[0003] Based on the above, patent CN217034193U discloses an equalizer for automotive power lithium batteries, including an equalizer body, a door on the side of the equalizer body, a start switch on the surface of the door, a display screen on the surface of the door, a function switch on the side of the display screen, six battery detection ports and twenty-four battery detection ports on the surface of the door, a power switch on the side of the equalizer body, multiple mounting plates inside the equalizer body, multiple fixing feet at the bottom of the equalizer body, a heat sink on the top of the equalizer body, a temperature sensor inside the equalizer body, a cooling fan inside the equalizer body, the cooling fan being positioned corresponding to the heat sink and electrically connected to the start-up circuit, and the temperature sensor being located at each circuit node.

[0004] Although the equalization device for automotive lithium-ion battery packs has many functional advantages, its housing structure and multi-channel circuit configuration still suffer from insufficient heat dissipation and low internal space utilization due to the partitioning of mounting plates, making it difficult to achieve a large number of channels. Specifically, although the device is equipped with a heat sink on top and a cooling fan inside, there is still a risk of insufficient heat dissipation under high load or long-term operation, which may affect the performance of the device. In addition, the device has multiple mounting plates inside. Although this design helps to arrange the internal components in an orderly manner, it also partitions the internal space of the housing, thereby reducing the overall utilization rate of the internal space. Utility Model Content

[0005] To address the technical deficiencies in the background technology, this utility model proposes a compact rechargeable battery module equalizer housing structure, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0006] A compact rechargeable battery module equalizer housing structure includes a mounting box and a control box arranged vertically and connected. The mounting box contains mounting racks symmetrically arranged on both sides. Multiple assembly base plates are sequentially mounted on the mounting racks from top to bottom. Each assembly base plate has several measurement and charging / discharging modules equidistantly arranged along its length. A touchscreen is mounted on the top surface of the mounting box. Sliding strips are symmetrically arranged on the left and right edges of the lower surface of each assembly base plate, allowing the base plates to slide onto the corresponding mounting racks via these strips. External interfaces corresponding to the number of measurement and charging / discharging modules are provided on the assembly base plates. A first side door is hinged to the right side wall of the mounting box, with several ventilation windows extending through its surface. Several ventilation holes extend through the left side wall of the mounting box.

[0007] As a further technical solution of this utility model, the control box is equipped with a control device for controlling the operation of the measurement and charging / discharging module and the cooling fan and is electrically connected to the touch screen. Universal wheels are installed at the four corners of the bottom of the control box, and handles that are connected to the outer wall of the mounting box are symmetrically arranged horizontally below the touch screen.

[0008] As a further technical solution of this utility model, the mounting bracket is provided with a C-shaped groove extending along the length direction of the mounting bracket, and the slide bar on the lower surface of the assembly base plate slides in cooperation with the C-shaped groove of the mounting bracket.

[0009] As a further technical solution of this utility model, a number of cooling fans are respectively installed on the mounting racks on the left and right sides inside the mounting box. A mounting plate is installed on the side of the mounting rack away from the measurement and charging / discharging module, and the cooling fans are installed on the mounting plate. The cooling fans on the mounting racks on the left and right sides inside the mounting box face each other.

[0010] As a further technical solution of this utility model, the front and rear sides of the upper surface of the assembly base plate are respectively provided with contact post female seats that are electrically connected to the measurement and charging / discharging module.

[0011] As a further technical solution of this utility model, an interface fixing plate is provided at the front edge of the upper surface of the assembly base plate. The interface fixing plate is provided with external interfaces that are equidistant along the length direction and electrically connected to the contact post female seat. The external interfaces are set one-to-one with the measurement and charging / discharging modules.

[0012] As a further technical solution of this utility model, a second side door is hinged to the rear side wall of the mounting box, and a cover plate that can be detachably engaged with the rear side wall of the mounting box is provided on the outer side of the second side door. The four edges of the cover plate are engaged and fixed between the four edges of the second side door and the rear side wall of the mounting box.

[0013] As a further technical solution of this utility model, the surface of the second side door is provided with a plurality of heat dissipation grooves arranged in a matrix, and through holes for accommodating external interfaces are provided between adjacent heat dissipation grooves.

[0014] As a further technical solution of this utility model, the upper surface of the assembly base plate is provided with several sets of sliding clips that slide in cooperation with the bottom surface of the measurement and charging / discharging module.

[0015] The beneficial effects of this utility model are as follows:

[0016] The multi-layered assembly base plate and sliding installation structure allow for easy installation and disassembly of the assembly base plate and measurement and charging / discharging modules, increasing installation convenience. Multiple measurement and charging / discharging modules can be assembled in an orderly and concentrated manner on the surface of the assembly base plate, increasing the module capacity inside the mounting box. Through the cooperation of cooling fans, ventilation windows, and ventilation holes, the box has excellent heat dissipation performance, ensuring good heat dissipation even when multiple modules are installed inside the box, thereby extending the service life of the equipment and improving work efficiency. Attached Figure Description

[0017] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model.

[0018] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0019] Figure 3 This is a cross-sectional view of the internal structure of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the internal structure of the mounting box of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the assembly base plate and the measurement and charging / discharging module of this utility model.

[0022] Figure 6 This is one of the structural schematic diagrams of the assembly base plate and the measurement and charging / discharging module of this utility model.

[0023] Figure 7 This is the second structural schematic diagram of the assembly base plate and the measurement and charging / discharging module of this utility model.

[0024] in:

[0025] 1-Mounting box; 11-Mounting bracket; 12-C-shaped groove; 13-Ventilation window; 14-Ventilation hole; 15-First side door; 16-Cover plate; 17-Second side door; 171-Heat dissipation channel; 172-Through hole; 18-Cooling fan; 181-Mounting plate; 19-Handle;

[0026] 2-Control box; 21-Casual wheels;

[0027] 3-Assembly base plate; 31-Sliding retaining strip; 32-Contact post female seat; 33-Interface fixing plate; 34-External interface; 35-Sliding strip;

[0028] 4- Measurement and charging / discharging module; 41- Sliding slot; 42- Contact post;

[0029] 5-Touchscreen. Detailed Implementation

[0030] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0031] Combination Figures 1 to 7 As shown, a compact rechargeable battery module equalizer housing structure includes a mounting box 1 and a control box 2 arranged vertically and connected. The mounting box 1 contains a mounting frame 11, which is symmetrically arranged on the left and right sides. Multiple assembly base plates 3 are sequentially mounted on the mounting frame 11 from top to bottom. The surface of each assembly base plate 3 is provided with several measurement and charging / discharging modules 4 arranged equidistantly along its length. A touch screen 5 is provided on the top surface of the mounting box 1. Sliding strips 35 are symmetrically arranged on the left and right edges of the lower surface of the assembly base plate 3. The assembly base plate 3 can be slidably placed on the corresponding mounting frame 11 via the sliding strips 35. The assembly base plate 3 is provided with external interfaces 34 corresponding to the number of measurement and charging / discharging modules 4. A first side door 15 is hinged to the right side wall of the mounting box 1, and several ventilation windows 13 are provided through its surface. Several ventilation holes 14 are provided through its surface on the left side wall of the mounting box 1.

[0032] This utility model achieves modular installation and disassembly of the measurement and charging / discharging module 4 through a drawer-type pull-out sliding fit structure between the slide bar 35 of the assembly base plate 3 and the C-shaped groove 12 of the mounting bracket 11. This not only simplifies the installation process and improves work efficiency, but also makes the replacement and maintenance of the measurement and charging / discharging module 4 more convenient.

[0033] This invention features several cooling fans 18 mounted on the mounting brackets 11 on the left and right sides inside the mounting box 1. These fans, along with the ventilation window 13 on the first side door 15, the ventilation hole 14 on the left side of the mounting box 1, and the heat dissipation channel 171 on the second side door 17, form an effective heat dissipation channel. This ensures that even when the mounting box 1 contains a large number of measurement and charging / discharging modules 4, it can still maintain good heat dissipation performance and extend the service life of the equipment.

[0034] The assembly base plate 3 of this invention allows for the orderly and centralized assembly of multiple measurement and charging / discharging modules 4, increasing the number of measurement and charging / discharging modules 4 that can be accommodated within the mounting box 1. This maximizes the utilization of the internal space of the equalizer. This modular design not only enhances the flexibility and scalability of the equipment but also significantly reduces maintenance and upgrade costs. Users do not need to replace the entire device; they can simply add or replace the measurement and charging / discharging modules 4 to improve the device's performance or expand its functions. This greatly solves the hardware upgrade problem after the equalizer's service life, avoids the costly waste of frequently replacing the entire device due to insufficient performance, extends the service life of existing equipment, and improves user satisfaction and economic benefits.

[0035] As one of the preferred embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the control box 2 is equipped with a control device for controlling the operation of the measurement and charging / discharging module 4 and the cooling fan 18, and is electrically connected to the touch screen 5. Universal wheels 21 are installed at the four corners of the bottom surface of the control box 2. The mounting box 1 is symmetrically arranged horizontally below the touch screen 5 with handles 19 connected to the outer wall of the mounting box 1.

[0036] The control device inside the control box 2 is the core component of the entire box structure. This device is responsible not only for controlling the operation of the measurement and charging / discharging module 4, ensuring its accurate and efficient execution of battery module balancing tests, but also for controlling the operation of the cooling fan 18 to maintain a suitable temperature inside the mounting box 1, ensuring stable equipment operation. Simultaneously, this control device is electrically connected to the touchscreen 5, allowing users to intuitively understand the equipment's operating status and perform necessary operations and adjustments. The four corners of the control box 2 are equipped with casters 21, providing excellent mobility for the entire box structure. These, along with the symmetrically arranged handles 19 below the touchscreen 5, allow users to easily move and transport the equipment.

[0037] As one of the preferred embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the mounting bracket 11 is provided with a C-shaped groove 12 extending along the length direction of the mounting bracket 11, and the slide bar 35 on the lower surface of the assembly base plate 3 slides in cooperation with the C-shaped groove 12 of the mounting bracket 11.

[0038] In the above structure, the cooperation between the C-shaped groove 12 and the slide bar 35 allows the assembly base plate 3 to be easily installed and removed from the mounting frame 11 like a drawer, thereby effectively simplifying the installation process, improving work efficiency, and enabling the assembly base plate 3 and the measurement and charging / discharging module 4 on it to be quickly replaced or adjusted as needed. In addition, the tight cooperation between the slide bar 35 and the C-shaped groove 12 ensures the stability and firmness of the assembly base plate 3 on the mounting frame 11. Even during equipment operation, the assembly base plate 3 will not loosen or fall off due to vibration or impact, thereby ensuring the accuracy and reliability of the measurement and charging / discharging module 4.

[0039] As one of the preferred embodiments of this utility model, such as Figures 1 to 4 As shown, several cooling fans 18 are respectively installed on the mounting brackets 11 on the left and right sides inside the mounting box 1. A mounting plate 181 is installed on the side of the mounting bracket 11 away from the measurement and charging / discharging module 4. Several cooling fans 18 are installed on the mounting plate 181. The cooling fans 18 on the mounting brackets 11 on the left and right sides inside the mounting box 1 face each other.

[0040] In the above structure, a mounting plate 181 is installed on the side of the mounting bracket 11 away from the measurement and charge / discharge module 4, and a cooling fan 18 is mounted on the mounting plate 181. Cooling fans 18 are installed on the mounting brackets 11 on both the left and right sides inside the mounting box 1, and their orientations are opposite. This can accelerate the airflow inside the mounting box 1, thereby more effectively removing the heat generated by the measurement and charge / discharge module 4 and other components. The operation of the cooling fan 18 helps to maintain the equipment within a suitable operating temperature range, thereby improving the operational stability and service life of the equipment.

[0041] A first side door 15 is hinged to the right side wall of the mounting box 1, and several ventilation windows 13 are provided through its surface. On the left side wall of the mounting box 1, several ventilation holes 14 are provided through its surface. The synergistic effect of the ventilation windows 13 and ventilation holes 14 allows cold air from the outside to enter the mounting box 1 smoothly, while hot air can be exhausted from the ventilation windows 13 or ventilation holes 14 by the drive of the cooling fan 18, thereby enhancing the heat dissipation effect and improving the heat dissipation efficiency of the equipment.

[0042] As one of the preferred embodiments of this utility model, such as Figures 5 to 7As shown, contact posts 42 are symmetrically arranged on the front and rear sides of the bottom surface of the measurement and charging / discharging module 4. Contact post female seats 32, which are corresponding to the positions of the contact posts 42 and electrically connected, are respectively provided on the front and rear sides of the upper surface of the assembly base plate 3. An interface fixing plate 33 is erected at the front edge of the upper surface of the assembly base plate 3. External interfaces 34, which are equidistant along the length direction and electrically connected to the contact post female seats 32, are passed through the interface fixing plate 33. The external interfaces 34 are arranged one-to-one with the measurement and charging / discharging module 4.

[0043] The measurement and charge / discharge module 4 has symmetrically arranged contact posts 42 on its front and rear sides. The contact posts 42 of the measurement and charge / discharge module 4 are electrically connected to the assembly base plate 3. The front and rear sides of the upper surface of the assembly base plate 3 are respectively provided with contact post female seats 32 that correspond to the positions of the contact posts 42 and are electrically connected. The contact post female seats 32 are components on the assembly base plate 3 used to receive and connect the contact posts 42 of the measurement and charge / discharge module 4. Through the electrical connection between the contact post female seats 32 and the contact posts 42, the signal and data transmission between the measurement and charge / discharge module 4 and the assembly base plate 3 is realized, and the stability and reliability of the connection are improved. This avoids the unreliability of using dense wire connections, and also makes the measurement and charge / discharge module 4 easy to install and disassemble, and convenient for maintenance and replacement.

[0044] In addition, an interface fixing plate 33 is erected at the front edge of the upper surface of the assembly base plate 3. External interfaces 34 are equidistantly arranged along the length direction and electrically connected to the contact post female seat 32. The external interfaces 34 are the interface between the assembly base plate 3 and the battery module. At the same time, the external interfaces 34 are set one-to-one with the measurement and charging / discharging modules 4, so that each measurement and charging / discharging module 4 can independently connect and communicate with each battery cell of the battery module through the corresponding external interface 34.

[0045] The contact post 42 on the bottom surface of the measurement and charging / discharging module 4 forms an elastic contact connection with the contact post female seat 32 on the assembly base plate 3. Combined with the wiring layout of the assembly base plate 3, it not only ensures the reliability of signal transmission, but also avoids the problems of messy wire harnesses and poor contact that exist in traditional wire connections.

[0046] The sliding slot 41 and the sliding strip 31 form a slot-type installation structure through precise cooperation. Combined with the elastic contact connection system, a complete modular installation system is constructed. This allows for rapid assembly through standardized processes during the manufacturing stage, and enables rapid location and hot-swappable replacement of faulty modules during after-sales maintenance. When system expansion is required, the channel expansion can be completed simply by sliding the new module onto the existing assembly base plate 3, reducing upgrade and modification costs.

[0047] The input and output circuits of each measurement and charge / discharge module 4 are connected via printed circuit boards on the assembly base plate 3. This integrated circuit design ensures that the circuit impedance of all modules remains highly consistent, fundamentally eliminating the impedance difference problem caused by traditional discrete connections. This provides an ideal circuit environment for battery module balancing, improving the accuracy of the balancing current distribution and thus achieving optimal battery module balancing.

[0048] As one of the preferred embodiments of this utility model, such as Figure 3 and Figure 4 As shown, a second side door 17 is hinged to the rear side wall of the mounting box 1. A cover plate 16 is provided on the outer side of the second side door 17, which can be detachably engaged with the rear side wall of the mounting box 1. The four edges of the cover plate 16 are engaged and fixed between the four edges of the second side door 17 and the rear side wall of the mounting box 1.

[0049] Furthermore, in the above structure, the surface of the second side door 17 is provided with a plurality of heat dissipation channels 171 arranged in a matrix, and a through hole 172 for accommodating the external interface 34 is provided between adjacent heat dissipation channels 171.

[0050] Specifically, in the above structure, the second side door 17 is hinged to the side wall of the mounting box 1, allowing the user to open or close it as needed to maintain, inspect, or install components inside the mounting box 1. The cover plate 16 further enhances the sealing and protection of the mounting box 1. When access to the interior of the mounting box 1 is not required, the cover plate 16 can be engaged between the second side door 17 and the rear side wall of the mounting box 1 to form a complete closed structure, preventing external factors such as dust and moisture from intruding and protecting the internal components from damage.

[0051] The heat dissipation groove 171 on the surface of the second side door 17 allows air circulation, which helps to dissipate heat inside the mounting box 1. The through hole 172 provides an interface for the user to connect to the external battery module, so that the external interface 34 on the assembly base plate 3 can be easily connected to the battery module.

[0052] In practical applications, when it is necessary to install the assembly base plate 3, the user can first remove the cover plate 16, and then open the second side door 17 to form an easy-to-operate installation window. At this time, the user can insert the slide bar 35 of the assembly base plate 3 into the C-shaped groove 12 of the mounting bracket 11 and push it into the mounting box 1 to complete the installation. In subsequent use, if it is necessary to connect the external interface 34 to the external battery module, it is necessary to connect the external interface 34 to the battery module through wires after removing the cover plate 16.

[0053] As one of the preferred embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the lower surface of the measurement and charging / discharging module 4 is symmetrically provided with sliding slots 41 on both sides, and the upper surface of the assembly base plate 3 is provided with several sets of sliding strips 31 that cooperate with the sliding slots 41.

[0054] In the above structure, the measurement and charging / discharging module 4 is connected to the upper surface of the assembly base plate 3 via a sliding slot 41 on its lower surface. The sliding connection not only facilitates the installation and removal of the measurement and charging / discharging module 4 on the assembly base plate 3, but also ensures the stability of the measurement and charging / discharging module 4 on the assembly base plate 3 by the tight fit between the sliding slot 41 and the sliding strip 31, preventing it from moving during operation and thus ensuring the stability of the equalizer equipment. Since the measurement and charging / discharging module 4 and the assembly base plate 3 are connected by the sliding slot 41 and the sliding strip 31, it is easier to achieve modular assembly between the assembly base plate 3 and the measurement and charging / discharging module 4. Users can flexibly install or remove the measurement and charging / discharging module 4 on the assembly base plate 3 according to actual needs.

[0055] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A compact rechargeable battery module equalizer housing structure, comprising a mounting box (1) and a control box (2) arranged vertically and connected, characterized in that, The mounting box (1) is equipped with a mounting frame (11) inside. The mounting frame (11) is symmetrically arranged on the left and right sides inside the mounting box (1). The mounting frame (11) is equipped with multiple layers of assembly base plates (3) from top to bottom. The surface of the assembly base plate (3) is provided with several measurement and charging / discharging modules (4) arranged at equal intervals along the length of the assembly base plate (3). The top surface of the mounting box (1) is provided with a touch screen (5). The left and right sides of the lower surface of the assembly base plate (3) are symmetrically provided with slide bars (35). The assembly base plate (3) can be slidably placed on the mounting frame (11) on the corresponding side through the slide bars (35). The assembly base plate (3) is provided with an external interface (34) corresponding to the number of measurement and charging / discharging modules (4). The right side wall of the mounting box (1) is hinged with a first side door (15). The surface of the first side door (15) is provided with several ventilation windows (13). The surface of the left side wall of the mounting box (1) is provided with several ventilation holes (14).

2. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, The control box (2) is equipped with a control device for controlling the operation of the measurement and charging / discharging module (4) and the cooling fan (18) and is electrically connected to the touch screen (5). The four corners of the bottom surface of the control box (2) are respectively equipped with casters (21). The mounting box (1) is symmetrically provided with handles (19) connected to the outer wall of the mounting box (1) below the touch screen (5).

3. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, The mounting bracket (11) is provided with a C-shaped groove (12) extending along the length direction of the mounting bracket (11), and the slide bar (35) on the lower surface of the assembly base plate (3) cooperates with the C-shaped groove (12) of the mounting bracket (11) to slide.

4. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, Several cooling fans (18) are respectively installed on the mounting brackets (11) on the left and right sides inside the mounting box (1). A mounting plate (181) is installed on the side of the mounting bracket (11) away from the measurement and charging / discharging module (4). Several cooling fans (18) are installed on the mounting plate (181). The cooling fans (18) on the mounting brackets (11) on the left and right sides inside the mounting box (1) face each other.

5. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, The front and rear sides of the upper surface of the assembly base plate (3) are respectively provided with contact post female seats (32) that are electrically connected to the measurement and charging / discharging module (4).

6. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, An interface fixing plate (33) is erected at the front edge of the upper surface of the assembly base plate (3). An external interface (34) is provided on the interface fixing plate (33) and is electrically connected to the contact post female seat (32) and is equidistant along the length direction. The external interface (34) is set one-to-one with the measurement and charging / discharging module (4).

7. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, A second side door (17) is hinged to the rear side wall of the mounting box (1). A cover plate (16) is provided on the outside of the second side door (17) and can be detachably engaged with the rear side wall of the mounting box (1). The four edges of the cover plate (16) are engaged and fixed between the four edges of the second side door (17) and the rear side wall of the mounting box (1).

8. The compact rechargeable battery module equalizer housing structure according to claim 7, characterized in that, The surface of the second side door (17) is provided with a plurality of heat dissipation channels (171) arranged in a matrix, and through holes (172) for accommodating external interfaces (34) are provided between adjacent heat dissipation channels (171).

9. The compact rechargeable battery module equalizer housing structure according to claim 1, characterized in that, The upper surface of the assembly base plate (3) is provided with several sets of sliding clips (31) that slide in cooperation with the bottom surface of the measurement and charging / discharging module (4).

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