Modular layered power battery carrying frame

Abstract

The application belongs to the technical field of power batteries, and particularly relates to a modular layered power battery bearing frame. In view of the problems that the battery module is inconvenient to assemble, and the functions of ventilation and heat dissipation and sealing and isolation cannot be considered in the existing bearing frame, the following scheme is provided, which comprises an outer frame and a plurality of inner frames, and each inner frame is fixedly connected with a single battery. An elastic plug-in assembly and an electromagnetic clamping assembly are arranged between the outer frame and the inner frame. When being docked, the inner frame is first elastically positioned in the outer frame by the elastic plug-in assembly, and then is magnetically locked by the electromagnetic clamping assembly. The six end surfaces of the inner frame are each provided with a double-layer structure baffle assembly. When the inner frame is installed in the outer frame, the baffle assembly is in an open ventilation state, and when the inner frame is taken out, the baffle assembly is automatically switched to a closed sealing state. The application realizes quick assembly and disassembly of the battery module, progressive locking, intelligent switching of ventilation and sealing, and safe isolation and convenient positioning of the fault battery.

Description

Technical Field

[0001] This invention relates to a battery support frame, specifically a modular layered power battery support frame, belonging to the field of power battery technology. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the power battery system, as the core energy storage component of the vehicle, directly affects the vehicle's safety, reliability, energy density, and subsequent maintenance costs due to its structural design. Existing power battery support frames mainly adopt integral welded structures or bolt-fixed frame structures, with battery cells or modules fixedly installed inside the frame. When a battery cell fails or its lifespan deteriorates, it is necessary to disassemble a large number of surrounding components to access the faulty battery, resulting in high repair difficulty, time commitment, and cost.

[0003] To address this issue, some existing technologies have proposed modular battery frame solutions. For example, European Patent EP3493292B1 discloses a removable battery module carrier, which includes a base plate, a pair of sidewalls, a pair of end plates, and a unit cover, collectively forming a space for accommodating battery sub-modules. This carrier can be individually attached to or detached from the carrier frame, enabling independent assembly and disassembly of the battery sub-modules. Another example is CN115312958B, which discloses a battery pack assembly and an electric vehicle including it, comprising a battery pack frame and several battery modules. The battery pack frame has multiple battery compartments for accommodating the battery modules, with openings allowing the battery modules to independently enter or exit the compartments. The battery pack frame has multiple platforms, each with several battery compartments, enabling independent assembly and disassembly of multiple battery modules. However, the aforementioned existing technologies only address the issue of detachable battery module installation. Each battery module lacks an effective position-holding mechanism when installed within the frame. During assembly, operators must precisely align the battery modules to their installation positions and hold them firmly until locking is complete, making assembly inconvenient. Furthermore, the locking method between the battery modules and the frame still primarily relies on bolt connections, which are prone to loosening under vehicle vibration, resulting in insufficient long-term reliability. In addition, existing battery frames require ventilation and heat dissipation to maintain battery operating temperature during normal operation. However, in the event of thermal runaway in a battery, it is necessary to quickly isolate the faulty battery from the surrounding environment and other batteries to prevent heat spread. Existing frame structures typically only possess a single ventilation function or a single sealing function, failing to simultaneously meet the ventilation and heat dissipation requirements during normal operation and the sealing and isolation requirements under fault conditions within the same structure. Summary of the Invention

[0004] This invention provides a modular, layered power battery support frame to address the problems of inconvenient battery module assembly and the inability to simultaneously achieve ventilation, heat dissipation, and sealing isolation functions in existing support frames.

[0005] The present invention achieves the above objectives through the following technical solution: a modular layered power battery support frame, comprising an outer frame and multiple modularly configured inner frames, each inner frame being fixedly connected to a single battery cell, and the outer frame being connected to an external vehicle frame; the outer frame is layered with multiple support frames for accommodating the inner frames, and the installation of the outer frame with each inner frame includes a preliminary alignment state and a moving and fixed state. A connecting seat is fixedly connected to the outer frame, and a connecting protrusion is fixedly connected to the inner frame. The connecting protrusion is movably inserted into the connecting seat. An elastic insertion component and an electromagnetic locking component are provided between the outer frame and the inner frame. When in the initial alignment state, the elastic insertion component elastically positions the connecting protrusion in the connecting seat. When in the travel and fixed state, the electromagnetic locking component is used to magnetically lock the connecting protrusion in the connecting seat. Each of the six end faces of the inner frame is equipped with a baffle assembly, which includes an outer fixed baffle and an inner movable baffle arranged in parallel. When the inner frame is installed with the outer frame, the baffle assemblies on the six end faces of the inner frame are in an open and ventilated state. When the inner frame is not installed with the outer frame, the baffle assemblies on the six end faces of the inner frame are in a closed and sealed state.

[0006] As a further embodiment of the present invention: the outer frame includes a front frame, front and rear connecting rods and a rear frame. The front frame and the rear frame are fixedly connected by multiple front and rear connecting rods. The front frame and the rear frame form multiple load-bearing frames arranged in layers along the vertical direction through multiple front and rear connecting rods. Limiting clamping strips for clamping the inner frame are fixedly connected to the front and rear connecting rods. A vertically arranged back plate is fixedly connected to the rear frame. Triangular plates are fixedly connected to the corner joints of the rear frame. A baffle is detachably connected to the front frame.

[0007] As a further embodiment of the present invention: a connector and a docking socket are embedded in the back plate, the four sides of the connector form limiting slopes, the body of the connector has a through hole, and a connecting protrusion is connected to the side of the inner frame near the back plate, and the connecting protrusion is aligned and inserted into the connecting hole.

[0008] As a further embodiment of the present invention: the elastic plug-in assembly includes a positioning cavity opened inside the connector, a positioning rod slidably inserted into the positioning cavity, and a rod positioning spring placed in the positioning cavity. One end of the rod positioning spring abuts against the inner wall surface of the positioning cavity, and the other end of the rod positioning spring abuts against the end flange of the positioning rod. The elastic plug-in assembly also includes a positioning slot opened on the connecting protrusion. When in the initial alignment state, the positioning rod extends toward the inner frame side under the elastic force of the rod positioning spring and inserts into the positioning slot opened in the connecting protrusion.

[0009] As a further embodiment of the present invention: the electromagnetic locking assembly includes an electromagnetic coil embedded inside the connector and a fixing slot opened inside the connector. The electromagnetic coil is connected in parallel with the external device circuit of the docking socket, and the electromagnetic coil is wound around the outside of the fixing slot. The electromagnetic locking assembly also includes a fixing cavity opened inside the connecting protrusion, a fixing rod slidably inserted into the fixing cavity, and a rod return spring sleeved on the rod body. One end of the rod return spring abuts against the inner wall step of the fixing cavity, and the other end of the rod return spring abuts against the end flange of the fixing rod. In the initial alignment state, the electromagnetic coil is de-energized, and the fixing rod retracts into the fixing cavity. In the traveling and fixing state, the electromagnetic coil is energized to generate magnetic attraction force, and drives the fixing rod to extend outward and lock into the fixing slot.

[0010] As a further embodiment of the present invention: the inner frame includes a support frame, and each of the six end faces of the support frame is provided with a baffle assembly. An outer fixed baffle is fixedly installed on the outer end face of the support frame. A telescopic rod assembly is provided between the outer fixed baffle and the inner movable baffle. A groove is provided in the middle part of the side of both the outer fixed baffle and the inner movable baffle. The two ends of the telescopic rod assembly are respectively fixedly connected in the groove. The outer fixed baffle connected to the end face of the support frame facing the connecting seat is fixedly connected to the connecting protrusion.

[0011] As a further aspect of the present invention: multiple arrayed through holes are provided through the plates of both the outer fixed baffle and the inner movable baffle; multiple arrayed blocking blocks are fixedly connected to the inner side plates of both the outer fixed baffle and the inner movable baffle; the through holes of the outer fixed baffle and the blocking blocks fixedly connected to the inner movable baffle are aligned; the blocking blocks fixedly connected to the outer fixed baffle and the through holes of the inner movable baffle are also aligned; when the baffle assembly is in an open ventilation state, the blocking blocks and the through holes are separated accordingly; when the baffle assembly is in a closed and sealed state, the blocking blocks and the through holes are sealed accordingly.

[0012] As a further embodiment of the present invention: the support frame has a connected liquid storage channel inside the support rod, and a liquid guiding channel is connected between the liquid storage channel and the telescopic rod assembly. A stop rod is connected to the frame body part of the support frame that is in contact with the triangular plate. A stop rod movable cavity is also provided inside the support rod, which is connected to the liquid storage channel. The stop rod is movably inserted into the stop rod movable cavity, and a stop rod return spring is also provided in the stop rod movable cavity. One end of the stop rod return spring abuts against the inner wall surface of the stop rod movable cavity, and the other end of the stop rod return spring abuts against the end flange of the stop rod.

[0013] As a further aspect of the present invention: a docking plug is provided at the end of the individual battery facing the connector; when the inner frame and the outer frame are docked and installed, the docking plug is inserted into the docking socket to realize the electrical conduction between the individual battery and the external device circuit of the outer frame, and a handle is fixed on the outer fixing baffle on the front side of each inner frame.

[0014] As a further embodiment of the present invention: the telescopic rod assembly includes a telescopic outer shell, a telescopic push rod, a piston, and a telescopic return spring; the telescopic outer shell is fixedly installed in the groove opened by the outer fixed baffle, the piston is slidably sealed in the inner cavity of the telescopic outer shell, the inner end of the telescopic push rod is fixedly connected to the end face of the piston, the outer end of the telescopic push rod extends out of the telescopic outer shell and is fixedly connected in the groove opened by the inner movable baffle, and the telescopic return spring is disposed inside the telescopic outer shell and abuts against the inner end face of the piston.

[0015] The beneficial effects of this invention are: 1. This invention fixes individual battery cells separately inside each inner frame and detachably installs the inner frames into the outer frame. This allows operators to replace a faulty battery cell simply by removing the inner frame containing that cell, without disassembling the entire battery pack. This significantly reduces maintenance time. At the same time, the modular design allows the total capacity of the battery pack to be flexibly adjusted by increasing or decreasing the number of inner frames. The same outer frame can be configured with different numbers of inner frames to meet the needs of different vehicle models or different driving ranges without the need to redesign a new load-bearing frame. 2. This invention, by simultaneously setting an elastic plug-in component and an electromagnetic locking component between the connecting seat and the connecting protrusion and assigning different activation sequences to the two, makes the fixing process of the inner frame exhibit a progressive locking characteristic from weak to strong. The positioning force provided by the elastic plug-in component in the initial alignment stage is moderate and has elastic buffering characteristics, while the strong magnetic attraction locking force provided by the electromagnetic locking component in the moving fixing stage complements the elastic plug-in component. This magnetic attraction force can ensure that the inner frame will not loosen or shift due to vibration accumulation during long-term operation. 3. This invention features a double-layer baffle structure consisting of an outer fixed baffle and an inner movable baffle on each of the six end faces of the inner frame. The state of the baffle assembly is linked to whether the inner frame is installed within the outer frame. When the inner frame is installed within the load-bearing frame and is operating normally, the baffle assembly switches to an open ventilation state. Cooling air can simultaneously pass through the double-layer baffle from six directions into the interior of the inner frame, forming a three-dimensional, all-around heat dissipation path, effectively reducing the temperature of the individual battery cells during operation. When the inner frame is removed from the outer frame for storage, transportation, or maintenance, the baffle assembly automatically switches to a closed, sealed state. The outer fixed baffle and the inner movable baffle come together to completely seal the interior of the inner frame, effectively preventing the intrusion of external moisture, dust, and conductive foreign objects. Furthermore, when an individual battery cell experiences an internal short circuit or thermal runaway, this sealed state can confine high-temperature gases and combustion products within the inner frame, avoiding secondary damage to external personnel and equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer frame structure of the present invention; Figure 3 This is a schematic diagram of the connection structure of the front and rear connecting rods, rear frame and back plate of the present invention; Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of the connection between the back plate and the connecting seat of the present invention; Figure 5 This is a schematic diagram of the transverse cross-sectional structure of the connector of the present invention; Figure 6 This is a schematic diagram of the electromagnetic coil structure of the present invention; Figure 7 This is a front view schematic diagram of the internal frame structure of the present invention; Figure 8 This is a schematic diagram of the rear view of the inner frame structure of the present invention; Figure 9 This is a schematic diagram of the rear view connection structure between the support frame and the single battery cell of the present invention; Figure 10 This is a schematic diagram of the transverse cross-sectional structure of the connecting protrusion of the present invention; Figure 11 This is a schematic cross-sectional view of the connection between the support frame and the external fixing baffle of the present invention. Figure 12 This is a schematic diagram of the split longitudinal cross-sectional structure of the outer fixed baffle and the inner movable baffle of the present invention; Figure 13 This is a schematic diagram of the longitudinal structure of the connection between the abutment and the support frame of the present invention; Figure 14 This is a schematic diagram of the baffle assembly of the present invention in its open ventilation state and closed sealing state. Figure 15 This is a schematic cross-sectional view of the telescopic rod assembly of the present invention.

[0017] In the diagram: 1. Outer frame; 11. Front frame; 12. Front and rear connecting rods; 13. Rear frame; 14. Limiting clamping strip; 15. Back plate; 16. Triangular plate; 17. Connecting seat; 18. Docking socket; 19. Limiting inclined surface; 110. Connecting through hole; 111. Positioning cavity; 112. Positioning rod; 113. Rod positioning spring; 114. Fixing slot; 115. Electromagnetic coil; 2. Inner frame; 21. Support frame; 22. Outer fixing baffle; 23. Handle; 24. Connecting protrusion; 25. Abutment rod; 26. Positioning slot; 27. Fixing cavity; 28. Fixing insertion rod; 29. ​​Insertion rod return spring; 210. Liquid storage channel; 211. Liquid guiding channel; 212. Inner movable baffle; 213. Through hole; 214. Block; 215. Abutment rod movable cavity; 216. Abutment rod return spring; 217. Groove; 3. Single battery; 31. Connecting plug; 4. Telescopic rod assembly; 41. Telescopic outer shell; 42. Telescopic push rod; 43. Piston; 44. Telescopic return spring; 5. Baffle net. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 like Figures 1 to 15 As shown, a modular layered power battery support frame includes an outer frame 1 and multiple modularly configured inner frames 2. Each inner frame 2 is fixedly connected to a single battery cell 3. The outer frame 1 is connected to an external vehicle frame. The outer frame 1 has multiple support positions for placing the inner frames 2 in layers. When the outer frame 1 is installed with each inner frame 2, there are initial alignment and fixed states. By fixing the individual battery cells 3 independently inside each inner frame 2 and detachably installing the inner frame 2 into the outer frame 1, when a single battery cell 3 fails or its lifespan deteriorates, the operator only needs to remove the inner frame 2 containing that battery cell 3 to complete the replacement. There is no need to disassemble the entire battery pack or touch other normal battery cells 3, which greatly shortens the maintenance time. At the same time, the modular structural design allows the total capacity of the battery pack to be flexibly adjusted by increasing or decreasing the number of inner frames 2. The same outer frame 1 can be configured with different numbers of inner frames 2 to meet the needs of different vehicle models or different driving ranges without redesigning a new support frame. A connecting seat 17 is fixedly connected to the outer frame 1, and a connecting protrusion 24 is fixedly connected to the inner frame 2. The connecting protrusion 24 is movably inserted into the connecting seat 17. An elastic insertion assembly and an electromagnetic locking assembly are provided between the outer frame 1 and the inner frame 2. In the initial alignment state, the elastic insertion assembly elastically positions the connecting protrusion 24 within the connecting seat 17. In the fixed travel state, the electromagnetic locking assembly magnetically locks the connecting protrusion 24 into the connecting seat 17. By dividing the installation space within the outer frame 1 into multiple independent load-bearing frames and setting up staged installation within each load-bearing frame, ... An elastic plug-in component and an electromagnetic locking component are simultaneously provided between the connecting seat 17 and the connecting protrusion 24, so that the fixing process of the inner frame 2 presents a progressive locking characteristic from weak to strong. The elastic plug-in component provides a moderate positioning force and has elastic buffering characteristics in the initial alignment stage, which can keep the inner frame 2 in the bearing frame position and prevent it from sliding out before the operator applies the final pushing force. The strong magnetic attraction locking force provided by the electromagnetic locking component in the traveling fixing stage complements the elastic plug-in component. This magnetic attraction can ensure that the inner frame 2 will not loosen or shift due to vibration accumulation during long-term operation. Each of the six end faces of the inner frame 2 is equipped with a baffle assembly, which includes an outer fixed baffle 22 and an inner movable baffle 212 arranged in parallel. When the inner frame 2 is installed with the outer frame 1, the baffle assemblies on the six end faces of the inner frame 2 are in an open, ventilated state. When the inner frame 2 is not installed with the outer frame 1, the baffle assemblies on the six end faces of the inner frame 2 are in a closed, sealed state. By setting a double-layer baffle structure consisting of an outer fixed baffle 22 and an inner movable baffle 212 on each of the six end faces of the inner frame 2, and linking the state of the baffle assembly with whether the inner frame 2 is installed in the outer frame 1, when the inner frame 2 is installed in the load-bearing frame and is operating normally with power, the baffle assembly switches to an open state. When the ventilation is open, cooling air can simultaneously pass through the double-layer baffles from six directions into the inner frame 2, forming a three-dimensional, all-around heat dissipation path to reduce the temperature of the individual battery 3 during operation. When the inner frame 2 is removed from the outer frame 1 for storage, transportation, or maintenance, the baffle assembly automatically switches to a closed, sealed state. The outer fixed baffle 22 and the inner movable baffle 212 come together to completely seal the interior of the inner frame 2, effectively preventing the intrusion of external moisture, dust, and conductive foreign objects. At the same time, when the individual battery 3 experiences an internal short circuit or thermal runaway, this sealed state can confine high-temperature gases and combustion products inside the inner frame 2, avoiding secondary damage to external personnel and equipment.

[0020] Example 2 Improvements based on Example 1: like Figures 1 to 6As shown, the outer frame 1 includes a front frame 11, front and rear connecting rods 12, and a rear frame 13. The front frame 11 and the rear frame 13 are fixedly connected by multiple front and rear connecting rods 12. The front frame 11 and the rear frame 13 form multiple load-bearing frames arranged in layers along the vertical direction through the multiple front and rear connecting rods 12. Limiting clamping strips 14 for clamping the inner frame 2 are fixedly connected to the front and rear connecting rods 12. A vertically arranged back plate 15 is fixedly connected to the rear frame 13. Triangular plates 16 are fixedly connected to the corner joints of the rear frame 13. By constructing the outer frame 1 as a frame structure in which the front frame 11 and the rear frame 13 are fixedly connected by multiple front and rear connecting rods 12, the front and rear connecting rods 12 naturally separate the layers between the two. The system comprises multiple load-bearing frames, with adjacent load-bearing frames separated by front and rear connecting rods 12. Each inner frame 2 is independently installed and fixed within its respective load-bearing frame. When an inner frame 2 experiences thermal runaway, the heat and flames generated are effectively blocked by the front and rear connecting rods 12, preventing direct spread to adjacent inner frames 2. Simultaneously, the contact between the limiting clamping strip 14 and the inner frame 2 effectively absorbs lateral vibration energy during vehicle operation. The back plate 15 provides a uniform insertion depth reference surface for all inner frames 2. After full insertion, the rear end face of each inner frame 2 is in contact with the back plate 15, ensuring the consistency of the installation position of each inner frame 2 in the front-rear direction. The triangular plate 16 enhances the rear frame body 13's resistance to torsional deformation. When frame 1 bears the torsional load generated by vehicle turning or bumping, the triangular plate 16 effectively disperses the stress at the corner to the adjacent frame edges, preventing the rear frame 13 from twisting and deforming; the front frame 11 is detachably connected to a baffle 5. It should be noted that the baffle 5 is a metal grid structure or a perforated mesh structure, and its mesh size is smaller than the minimum outer contour size of the inner frame 2, ensuring that the inner frame 2 cannot pass through the mesh. The baffle 5 can be connected to the front frame 11 by bolts, or the baffle 5 can be hinged to the front frame 11 at one end and detachably fixed to the front frame 11 at the other end by a latch; when the baffle 5 is in the closed state, the baffle 5 covers the openings of all load-bearing frame positions, restricting each inner frame 2 within its corresponding load-bearing frame position; when the baffle 5 is closed... When in the open state, each inner frame 2 can be freely removed from its corresponding support frame, providing double protection with the net 5 and the electromagnetic locking assembly: under normal vehicle operation, the electromagnetic locking assembly provides the main locking force, and the elastic plug-in assembly provides auxiliary positioning, both ensuring that the inner frame 2 will not come loose while the vehicle is in motion; in the event of a vehicle collision causing a power outage in the main circuit and unlocking the electromagnetic locking assembly, the net 5 is in the closed state, providing a physical barrier. Even if the electromagnetic locking assembly completely fails and the elastic plug-in assembly is overcome, the inner frame 2 is still blocked by the net 5 and cannot come out of the outer frame 1; when it is necessary to maintain or replace a faulty battery, the operator first opens the latch to flip the net 5 open, and then removes the inner frame 2 through the handle 23.

[0021] Furthermore, a connector 17 and a mating socket 18 are embedded in the back plate 15. The four sides of the connector 17 form limiting slopes 19. The body of the connector 17 has a through hole 110. A connecting protrusion 24 is connected to the side of the inner frame 2 near the back plate 15, and the connecting protrusion 24 is aligned and inserted into the through hole 110. By fixing the connector 17 and the mating socket 18 to the back plate 15 in an embedded manner, the mechanical positioning structure and the electrical connection structure are integrated on the same mounting reference surface. When the inner frame 2 is pushed in along the bearing frame position to the back plate... When the connector 15 is attached, the connecting protrusion 24 is inserted into the connecting hole 110 in the connector 17, and the docking plug 31 on the single battery 3 is inserted into the docking socket 18, reducing the assembly process. The limiting slope 19 formed by the four sides of the connector 17 can make the connector 17 more firmly embedded in the back plate 15. The connecting hole 110 is opened through the body of the connector 17. After the connecting protrusion 24 is inserted, its outer wall and the inner wall of the connecting hole 110 form a circumferential surrounding fit, ensuring the tight fit between the inner frame 2 and the back plate 15.

[0022] Furthermore, the elastic insertion assembly includes a positioning cavity 111 formed inside the connector 17, a positioning rod 112 slidably inserted into the positioning cavity 111, and a rod positioning spring 113 disposed within the positioning cavity 111. One end of the rod positioning spring 113 abuts against the inner wall of the positioning cavity 111, and the other end of the rod positioning spring 113 abuts against the end flange of the positioning rod 112. The elastic insertion assembly also includes a positioning slot 26 formed on the connecting protrusion 24. In the initial alignment state, the positioning rod 112 extends towards the inner frame 2 under the elastic force of the rod positioning spring 113 and inserts into the positioning slot 26 formed on the connecting protrusion 24, so that the positioning rod 112 always has an automatic reset tendency to extend towards the connecting protrusion 24 under the action of the rod positioning spring 113. By forming a positioning slot 26 on the connecting protrusion 24, the positioning rod 112 extends under the elastic force of the rod positioning spring 113 in the initial alignment state. The positioning rod 112 is inserted into the positioning slot 26 opened in the connecting protrusion 24. The cooperation between the positioning rod 112 and the positioning slot 26 forms an elastic lock on the connecting protrusion 24. This not only prevents the inner frame 2 from accidentally coming out or shifting before the final fixation is completed, but also provides a tactile feedback that the inner frame 2 is in place, allowing the operator to clearly perceive the assembly process. At the same time, this elastic positioning is temporary and reversible. When it is necessary to remove the inner frame 2, only sufficient pushing and pulling force needs to be applied to overcome the elastic force of the positioning rod 112, without hindering subsequent operations. It should be noted that the end of the positioning rod 112 is an arc surface or a spherical surface, the positioning slot 26 is provided with a guide chamfer, and the contact surface between the positioning rod 112 and the positioning slot 26 is treated with chrome plating, nickel plating, or polishing to reduce friction. The cooperation between the arc surface and the chamfer efficiently converts the axial thrust into an axial component force to overcome the spring force, greatly reducing the operating force required for unlocking, and further reducing wear by reducing the coefficient of sliding friction.

[0023] Furthermore, the electromagnetic locking assembly includes an electromagnetic coil 115 embedded inside the connector 17 and a fixing slot 114 opened inside the connector 17. The electromagnetic coil 115 is connected in parallel with the external device circuit of the docking socket 18, and the electromagnetic coil 115 is wound around the outside of the fixing slot 114. The electromagnetic locking assembly also includes a fixing cavity 27 opened inside the connecting protrusion 24, a fixing rod 28 slidably inserted into the fixing cavity 27, and a rod return spring 29 sleeved on the rod body of the fixing rod 28. One end of the rod return spring 29 abuts against the inner wall step of the fixing cavity 27, and the other end of the rod return spring 29 abuts against the end flange of the fixing rod 28. In the initial alignment state, the electromagnetic coil 115 is de-energized, and the fixing rod 28 retracts into the fixing cavity 27. In the traveling and fixed state, the electromagnetic coil 115 is energized to generate magnetic attraction, and drives the fixing rod 28 to extend outward and lock into the fixing slot 114. 5. When powered on, a strong magnetic field can be directly generated around the fixed slot 114. The electromagnetic coil 115 and the external device circuit of the docking socket 18 are connected in parallel, so that the electromagnetic coil 115 can directly obtain power from the single battery 3 without the need for an independent power supply line. When in the moving fixed state, the electromagnetic coil 115 generates magnetic attraction force when powered on, and drives the fixed plug 28 to extend outward and snap into the fixed slot 114, forming a magnetically driven active locking. The locking force is much greater than the positioning force of the elastic plug component, ensuring that the inner frame 2 will not loosen under the vibration environment of vehicle driving. At the same time, when the power is off, the plug return spring 29 can automatically pull the fixed plug 28 back into the fixed cavity 27 to unlock, which is convenient for the removal and replacement of the inner frame 2. It should be noted that the fixed plug 28 is made of ferromagnetic material, such as electrical pure iron, low carbon steel, iron-silicon alloy or ferritic stainless steel. As a ferromagnetic material, the fixed plug 28 will be magnetized by the magnetic field generated by the electromagnetic coil 115 and become a magnet itself.The superposition of two magnetic fields greatly enhances the magnetism of the electromagnet. The magnetized fixed rod 28 interacts with the magnetic field generated by the electromagnetic coil 115, producing a strong electromagnetic attraction. When this attraction exceeds the reaction force of the rod return spring 29, it drives the fixed rod 28 to extend outward and engage with the fixed slot 114, achieving locking. The electromagnetic coil 115 adopts a low-power design, and its control circuit is configured with a dual-stage operating mode of high-current start-up and low-current holding. Specifically, when the electromagnetic locking assembly needs to push the fixed rod 28 out of the fixed cavity 27 and embed it into the fixed slot 114, the control... The control circuit applies a full-voltage, high-current pulse to the electromagnetic coil 115, providing sufficient starting electromagnetic force to overcome the elasticity and frictional resistance of the return spring 29. After the fixed plug 28 is fully extended and inserted into the fixed slot 114, the control circuit automatically switches to a low-voltage, low-current maintenance mode, requiring only a small maintenance current to maintain the engaged state of the fixed plug 28. Through the above-mentioned high-current start-up and low-current maintenance control, the continuous power consumption of the electromagnetic coil 115 can be reduced by more than 90%, and the coil temperature rise decreases. The gap between the electromagnetic coil 115 and the housing of the connector 17 is filled with thermally conductive potting material. The thermally conductive potting material is a high thermal conductivity epoxy potting compound or a high thermal conductivity silicone potting compound. The thermally conductive potting material rapidly conducts the heat generated by the electromagnetic coil 115 to the metal housing of the connector 17, and utilizes the large-area contact between the connector 17 and the back plate 15 to further transfer the heat to the entire outer frame 1 for heat dissipation. The thermally conductive potting material simultaneously fills all the gaps between the electromagnetic coil 115 and the housing of the connector 17, forming a complete protective enclosure for the electromagnetic coil 115. This effectively resists external vibrations, impacts, and temperature changes, ensuring the long-term reliable operation of the electromagnetic coil 115 under high load and high temperature environments. The housing of the connector 17 is made of aluminum alloy. Aluminum alloy has both good thermal and electrical conductivity. On the one hand, it acts as a thermally conductive medium to quickly dissipate the heat generated by the electromagnetic coil 115; on the other hand, it acts as a conductive housing to self-shield the electromagnetic field generated by the electromagnetic coil 115. Due to the high electrical conductivity of aluminum alloy, when the alternating magnetic field generated by the electromagnetic coil 115 passes through the aluminum alloy housing, induced eddy currents are generated on the surface of the housing. The reverse magnetic field generated by the eddy currents partially cancels out the original magnetic field, thereby achieving an electromagnetic shielding effect. The aluminum alloy housing of the connector 17 confines the electromagnetic field generated by the electromagnetic coil 115 inside the connector 17, effectively reducing electromagnetic interference from leakage magnetic field to external sensitive devices such as BMS sensors and Hall elements; the surface of the fixing rod 28 is provided with an anti-corrosion coating, which can be any one of the following: chemical nickel plating, hard chrome plating, zinc plating, zinc-nickel alloy plating, electrophoretic paint, or Dacromet coating, reducing the corrosion of the fixing rod 28 by external salt spray and moisture, and preventing the fixing rod 28 from rusting in the salt spray and humid heat environment of the battery pack.

[0024] like Figures 7 to 15As shown, the inner frame 2 includes a support frame 21. Each of the six end faces of the support frame 21 is equipped with a baffle assembly. An outer fixed baffle 22 is fixedly installed on the outer end face of the support frame 21. A telescopic rod assembly 4 is provided between the outer fixed baffle 22 and the inner movable baffle 212. Grooves 217 are provided in the middle of the sides of both the outer fixed baffle 22 and the inner movable baffle 212. The two ends of the telescopic rod assembly 4 are respectively fixedly connected to the grooves 217. The outer fixed baffle 22 connected to the end face of the support frame 21 facing the connecting seat 17 is fixedly connected to the connecting protrusion 24. By independently installing baffle assemblies on each of the six end faces of the support frame 21, each end face... The baffle assembly forms a complete enclosure of the single battery 3 on the support frame 21. The outer fixed baffle 22 is fixedly installed on the outer end face of the support frame 21 as the outermost protective barrier. The inner movable baffle 212 is set inside the outer fixed baffle 22 and can move relative to it. The gap between the two provides a channel space for air flow in the ventilation state. When the telescopic rod assembly 4 extends or retracts, its driving force acts on the edge of the inner movable baffle 212 in a direction parallel to the plate surface, pushing the inner movable baffle 212 to translate relative to the outer fixed baffle 22 in its own plate plane, realizing the conversion between the open ventilation state and the closed sealed state of the baffle assembly.

[0025] Furthermore, both the outer fixed baffle 22 and the inner movable baffle 212 have multiple arrayed through holes 213 extending through their surfaces. Both the outer fixed baffle 22 and the inner movable baffle 212 have multiple arrayed blocking blocks 214 fixedly connected to their inner surfaces. The through holes 213 in the outer fixed baffle 22 and the blocking blocks 214 fixedly connected to the inner movable baffle 212 are aligned. 3. The baffle assembly is also positioned in a corresponding manner; when the baffle assembly is in the open ventilation state, the blocking block 214 and the through hole 213 are separated accordingly; when the baffle assembly is in the closed and sealed state, the blocking block 214 and the through hole 213 are sealed accordingly. The through hole 213 and the blocking block 214 form a complementary correspondence in spatial position, that is, each through hole 213 on the outer fixed baffle 22 has a corresponding blocking block 214 on the inner movable baffle 212, and vice versa. When the inner movable baffle 212 is relative to the outer fixed baffle When baffle 22 is in the open position, the through holes 213 on the two plates are interconnected, and the airflow can pass through the body of the outer fixed baffle 22, the middle gap and the body of the inner movable baffle 212 without obstruction, forming an airflow path that runs through the inside and outside of the inner frame 2. After the six end faces open this path at the same time, a three-dimensional ventilation network with multi-directional air intake and multi-directional air exhaust is formed around the inner frame 2. When the inner movable baffle 212 moves towards the outer fixed baffle 22, the blocking block 214 on the outer fixed baffle 22 is embedded in the corresponding through hole 213 on the inner movable baffle 212. At the same time, the blocking block 214 on the inner movable baffle 212 is also embedded in the corresponding through hole 213 on the outer fixed baffle 22. After being embedded, the blocking block 214 and the through hole 213 form a circumferential sealing contact, and the airflow channel between the inside and outside is completely cut off. At the same time, the cooperation of the blocking block 214 embedded in the through hole 213 also fixes the outer fixed baffle 22 and the inner movable baffle 212 relatively in the plate surface direction, enhancing the structural integrity in the sealed state.

[0026] Furthermore, the support frame 21 has a connected liquid storage channel 210 inside its frame rod, and a liquid guiding channel 211 connects the liquid storage channel 210 to the telescopic rod assembly 4. A stop rod 25 is connected to the frame body of the support frame 21 that is in contact with the triangular plate 16. A stop rod movable cavity 215 is also provided inside the frame rod of the support frame 21, which is connected to the liquid storage channel 210. The stop rod 25 is movably inserted into the stop rod movable cavity 215, and a stop rod return spring 216 is also provided inside the stop rod movable cavity 215. One end of the spring 6 abuts against the inner wall of the movable cavity 215 of the push rod, and the other end of the push rod return spring 216 abuts against the end flange of the push rod 25. It should be noted that a separating piston is sleeved on the end flange of the push rod 25. The connecting cavity formed by the liquid storage channel 210 and the movable cavity 215 of the push rod is filled with hydraulic medium. When the inner frame 2 is pushed into the bearing frame position of the outer frame 1, the fixed position of the triangular plate 16 and the protruding end of the push rod 25 interfere in space. The triangular plate 16 forces the push rod 25 to retract into the movable cavity 215 of the push rod. The retraction of the stop rod 25 causes the piston to squeeze and transport the hydraulic medium in the stop rod movable chamber 215 into the reservoir channel 210, increasing the pressure of the hydraulic medium in the reservoir channel 210. The increased pressure of the hydraulic medium is further transported to the telescopic rod assemblies 4 at each end face through the guide channel 211, driving the telescopic rod assemblies 4 at each end face to extend synchronously, realizing the switching of the baffle assembly to the open ventilation state. This achieves synchronous driving of all end face baffle assemblies by a single driving force source. The inner movable baffles 212 of the six end faces start moving at the same time and at the same speed. The position switching is completed, ensuring the consistency of ventilation gaps at each end face and the synchronicity of sealing action. When the inner frame 2 is pulled out from the bearing frame position, the pressure of the triangular plate 16 on the abutment 25 is released, and the abutment return spring 216 releases elastic potential energy to push the abutment 25 outward. The hydraulic medium flows back from the telescopic rod assembly 4 through the liquid guiding channel 211 and the liquid storage channel 210 to the abutment moving cavity 215. The telescopic rod assemblies 4 at each end face retract and reset synchronously, and the baffle assembly automatically returns to the closed and sealed state, so that the state of the baffle assembly changes in conjunction with the installation state of the inner frame 2.

[0027] like Figure 7 , Figure 8 and Figure 9As shown, a docking plug 31 is provided at one end of the individual battery 3 facing the connector 17. When the inner frame 2 and the outer frame 1 are docked and installed, the docking plug 31 is inserted into the docking socket 18 to realize the electrical conduction of the circuit of the individual battery 3 and the external device connected to the outer frame 1. A handle 23 is fixed on the outer fixed baffle 22 on the front side of each inner frame 2. When the inner frame 2 is pushed in along the bearing frame until it is completely in contact with the back plate 15, the docking plug 31 and the docking socket 18 form a plug-in engagement. Since this plug-in action and the action of inserting the connecting protrusion 24 into the connector 17 are completed by the same pushing motion, the electrical connection is also established at the moment the mechanical docking is completed, which effectively prevents the risk of arcing that may be caused by plugging and unplugging while the power is on. The handle 23 provides a force application part for the operator, making it convenient for the operator to install and remove the inner frame 2.

[0028] like Figure 11 , Figure 14 and Figure 15 As shown, the telescopic rod assembly 4 includes a telescopic housing 41, a telescopic push rod 42, a piston 43, and a telescopic return spring 44. The telescopic housing 41 is fixedly installed in the groove 217 opened in the outer fixed baffle 22. The piston 43 is slidably sealed in the internal cavity of the telescopic housing 41. The inner end of the telescopic push rod 42 is fixedly connected to the end face of the piston 43. The outer end of the telescopic push rod 42 extends out of the telescopic housing 41 and is fixedly connected in the groove 217 opened in the inner movable baffle 212. The telescopic return spring 44 is disposed inside the telescopic housing 41 and abuts against the inner end face of the piston 43, so as to convert the hydraulic medium pressure into mechanical telescopic motion. This is achieved through the sealing and sliding of piston 43. Piston 43 divides the internal cavity of telescopic housing 41 into two independent spaces: a hydraulic chamber and a spring chamber. When the hydraulic medium enters the hydraulic chamber from the guide channel 211, the medium pressure pushes piston 43 to move. Piston 43 drives telescopic push rod 42 to extend synchronously. Telescopic return spring 44 is located inside the spring chamber and is always in a compressed state. When the hydraulic medium pressure decreases, telescopic return spring 44 releases elastic potential energy to push piston 43 to move towards the hydraulic chamber to reset. Telescopic push rod 42 then retracts into the telescopic housing 41 and pulls the inner movable baffle 212 back to its original position, thereby realizing the state transformation of the baffle assembly.

[0029] Working principle: After the operator aligns the inner frame 2 containing the single battery 3 with the bearing frame position of the outer frame 1, a pushing force is applied. The inner frame 2 moves along the bearing frame position in the direction between the front frame 11 and the rear frame 13, so that the connecting protrusion 24 enters the connecting through hole 110. As the inner frame 2 continues to advance, the front end face of the connecting protrusion 24 contacts the front inclined face of the positioning rod 112. The inner frame 2 enters the initial alignment state and is elastically positioned in the bearing frame position and cannot automatically come out. At this time, the single battery 3 and the electromagnetic coil 115 form an electrical connection. When the single battery 3 supplies power to the device, the electromagnetic coil 115 generates a strong magnetic field around the fixed slot 114 after being energized. The magnetic field applies a magnetic attraction force to the fixed rod 28 in the fixed cavity 27. This magnetic attraction force overcomes the elastic force of the rod return spring 29 and pushes the fixed rod 28 out of the fixed cavity 27 and into the fixed slot 114. The inner frame 2 enters the traveling fixed state and is magnetically locked in the connecting seat 17 and cannot move. As the inner frame 2 moves into the outer frame 1, the abutment 25 moves with the inner frame 2 toward the rear frame 13 and gradually approaches the triangular plate 16. When it continues to move, the triangular plate 16 forces the abutment 25 to retract into the abutment movable cavity 215 and compress the abutment return spring 216. This retraction movement compresses the hydraulic medium in the liquid storage channel 210, causing its pressure to rise. The hydraulic medium with increased pressure enters the telescopic outer shell 41 at each end face through the liquid guide channel 211 and pushes the piston 43 to move. The piston 43 drives the telescopic push rod 42 to extend. The telescopic push rod 42 drives the inner movable baffle 212 to translate relative to the outer fixed baffle 22 in its own plate plane, so that the through hole 213 and the block 214 are separated accordingly, and the baffle assembly switches to the open ventilation state. When the single cell 3 experiences thermal runaway or a serious malfunction, the power supply to the single cell 3 is cut off. Simultaneously, after the electromagnetic coil 115 loses its magnetism, the fixing rod 28 retracts into the fixing cavity 27 under the action of the rod return spring 29, releasing the magnetic locking. The operator applies a pulling force through the handle 23 to pull the inner frame 2 out along the bearing frame. When the inner frame 2 is pulled out from the bearing frame, the pressure of the triangular plate 16 on the abutment rod 25 is released, and the abutment rod return spring 216 releases elastic potential energy to push the abutment rod 25 and the separator piston sleeved at the end flange of the abutment rod 25 outward. At the same time, the telescopic return spring 44 in the telescopic rod assembly 4 releases elastic potential energy to push the piston 43 to move and reset towards the hydraulic cavity. The telescopic push rod 42 then retracts into the telescopic outer shell 41, and the piston 43 pushes out the hydraulic medium in the hydraulic cavity of the telescopic outer shell 41. Due to the liquid storage channel 210 and the liquid guiding channel 211. The hydraulic chambers of the push rod movable chamber 215 and the telescopic outer shell 41 are interconnected to form a closed hydraulic circulation loop. The hydraulic medium flows back from the telescopic outer shell 41 through the liquid guiding channel 211 and the liquid storage channel 210 to the push rod movable chamber 215. The telescopic rod assemblies 4 at each end face retract and reset synchronously. The inner movable baffle 212 moves in the opposite direction to the outer fixed baffle 22. The block 214 on the outer fixed baffle 22 is embedded in the through hole 213 on the inner movable baffle 212 and the block 214 on the inner movable baffle 212 is simultaneously embedded in the through hole 213 on the outer fixed baffle 22 to form a circumferential sealing contact. The baffle assembly switches to the closed and sealed state to completely seal the inside of the inner frame 2. The operator removes the inner frame 2 in the sealed state for processing or replacement. The new inner frame 2 is installed into the outer frame 1 according to the aforementioned steps to restore the normal working state.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular layered power battery support frame, comprising an outer frame (1) and multiple modularly arranged inner frames (2), characterized in that: Each inner frame (2) is fixedly connected to a single battery (3), and the outer frame (1) is connected to the external vehicle frame; the outer frame (1) is provided with multiple load-bearing frames for placing the inner frames (2) in layers, and the outer frame (1) and each inner frame (2) are installed together, including a preliminary alignment state and a moving and fixed state. A connecting seat (17) is fixedly connected to the outer frame (1), and a connecting protrusion (24) is fixedly connected to the inner frame (2). The connecting protrusion (24) is movably inserted into the connecting seat (17). An elastic insertion component and an electromagnetic locking component are provided between the outer frame (1) and the inner frame (2). When in the initial alignment state, the elastic insertion component elastically positions the connecting protrusion (24) in the connecting seat (17). When in the traveling and fixed state, the electromagnetic locking component is used to magnetically lock the connecting protrusion (24) in the connecting seat (17). The six end faces of the inner frame (2) are provided with baffle assemblies. The baffle assemblies include parallel outer fixed baffles (22) and inner movable baffles (212). When the inner frame (2) is installed with the outer frame (1), the baffle assemblies on the six end faces of the inner frame (2) are in an open ventilation state. When the inner frame (2) is not installed with the outer frame (1), the baffle assemblies on the six end faces of the inner frame (2) are in a closed and sealed state.

2. The modular layered power battery support frame according to claim 1, characterized in that: The outer frame (1) includes a front frame (11), front and rear connecting rods (12) and a rear frame (13). The front frame (11) and the rear frame (13) are fixedly connected by multiple front and rear connecting rods (12). The front frame (11) and the rear frame (13) are connected by multiple front and rear connecting rods (12) to form multiple load-bearing frames arranged in layers along the vertical direction. Limiting clamping strips (14) for clamping the inner frame (2) are fixedly connected to the front and rear connecting rods (12). A vertically arranged back plate (15) is fixedly connected to the rear frame (13). Triangular plates (16) are fixedly connected to the corners of the rear frame (13). A baffle (5) is detachably connected to the front frame (11).

3. The modular layered power battery support frame according to claim 2, characterized in that: The back plate (15) is embedded with a connecting seat (17) and a docking socket (18). The four sides of the connecting seat (17) form limiting slopes (19). The body of the connecting seat (17) is provided with a connecting through hole (110). The inner frame (2) is connected to a connecting protrusion (24) on the side near the back plate (15), and the connecting protrusion (24) is aligned and inserted into the connecting through hole (110).

4. The modular layered power battery support frame according to claim 3, characterized in that: The elastic plug-in assembly includes a positioning cavity (111) opened inside the connector (17), a positioning plug (112) slidably inserted into the positioning cavity (111), and a plug positioning spring (113) placed in the positioning cavity (111). One end of the plug positioning spring (113) abuts against the inner wall of the positioning cavity (111), and the other end of the plug positioning spring (113) abuts against the end flange of the positioning plug (112). The elastic plug-in assembly also includes a positioning slot (26) opened on the connecting protrusion (24). When in the initial alignment state, the positioning plug (112) extends toward the inner frame (2) side under the elastic force of the plug positioning spring (113) and inserts into the positioning slot (26) opened in the connecting protrusion (24).

5. The modular layered power battery support frame according to claim 3, characterized in that: The electromagnetic locking assembly includes an electromagnetic coil (115) embedded inside the connector (17) and a fixing slot (114) opened inside the connector (17). The electromagnetic coil (115) is connected in parallel with the external device circuit of the docking socket (18), and the electromagnetic coil (115) is wound around the outside of the fixing slot (114). The electromagnetic locking assembly also includes a fixing cavity (27) opened inside the connecting protrusion (24), a fixing rod (28) slidably inserted into the fixing cavity (27), and a rod body sleeved on the fixing rod (28). The insertion rod reset spring (29) is located on the upper part of the fixed cavity (27). One end of the insertion rod reset spring (29) abuts against the inner wall step of the fixed cavity (27), and the other end of the insertion rod reset spring (29) abuts against the end flange of the fixed insertion rod (28). When in the initial alignment state, the electromagnetic coil (115) is de-energized, and the fixed insertion rod (28) retracts into the fixed cavity (27). When in the traveling and fixed state, the electromagnetic coil (115) is energized to generate magnetic attraction force, and drives the fixed insertion rod (28) to extend outward and snap into the fixed slot (114).

6. The modular layered power battery support frame according to claim 3, characterized in that: The inner frame (2) includes a support frame (21), and each of the six end faces of the support frame (21) is provided with a baffle assembly. The outer fixed baffle (22) is fixedly installed on the outer end face of the support frame (21). A telescopic rod assembly (4) is provided between the outer fixed baffle (22) and the inner movable baffle (212). The middle part of the side of the outer fixed baffle (22) and the inner movable baffle (212) is provided with a groove (217). The two ends of the telescopic rod assembly (4) are respectively fixedly connected in the groove (217). The outer fixed baffle (22) connected to the end face of the support frame (21) facing the connecting seat (17) is fixedly connected to the connecting protrusion (24).

7. The modular layered power battery support frame according to claim 6, characterized in that: Both the outer fixed baffle (22) and the inner movable baffle (212) have multiple arrayed through holes (213) through their plates. Both the outer fixed baffle (22) and the inner movable baffle (212) have multiple arrayed blocking blocks (214) fixedly connected to their inner side plates. The through holes (213) of the outer fixed baffle (22) and the blocking blocks (214) fixedly connected to the inner movable baffle (212) are aligned. The blocking blocks (214) fixedly connected to the outer fixed baffle (22) and the through holes (213) of the inner movable baffle (212) are also aligned. When the baffle assembly is in an open ventilation state, the blocking blocks (214) and the through holes (213) are separated. When the baffle assembly is in a closed and sealed state, the blocking blocks (214) and the through holes (213) are sealed.

8. The modular layered power battery support frame according to claim 7, characterized in that: The support frame (21) has a connected liquid storage channel (210) inside the frame rod. The liquid storage channel (210) is connected to the telescopic rod assembly (4) by a liquid guiding channel (211). The support frame (21) is connected to the frame body part that fits against the triangular plate (16) by a stop rod (25). The support frame (21) also has a stop rod movable cavity (215) inside the frame rod. The stop rod movable cavity (215) is connected to the liquid storage channel (210). The stop rod (25) is movably inserted into the stop rod movable cavity (215). The stop rod movable cavity (215) is also provided with a stop rod return spring (216). One end of the stop rod return spring (216) abuts against the inner wall surface of the stop rod movable cavity (215), and the other end of the stop rod return spring (216) abuts against the end flange of the stop rod (25).

9. The modular layered power battery support frame according to claim 3, characterized in that: The single battery (3) is provided with a docking plug (31) at one end facing the connector (17); when the inner frame (2) is installed with the outer frame (1), the docking plug (31) is inserted into the docking socket (18) to realize the electrical conduction of the circuit of the single battery (3) and the external device of the outer frame (1), and a handle (23) is fixed on the outer fixing baffle (22) on the front side of each inner frame (2).

10. The modular layered power battery support frame according to claim 8, characterized in that: The telescopic rod assembly (4) includes a telescopic housing (41), a telescopic push rod (42), a piston (43), and a telescopic return spring (44). The telescopic housing (41) is fixedly installed in the groove (217) opened by the outer fixed baffle (22). The piston (43) is slidably sealed in the internal cavity of the telescopic housing (41). The inner end of the telescopic push rod (42) is fixedly connected to the end face of the piston (43). The outer end of the telescopic push rod (42) extends out of the telescopic housing (41) and is fixedly connected in the groove (217) opened by the inner movable baffle (212). The telescopic return spring (44) is located inside the telescopic housing (41) and abuts against the inner end face of the piston (43).

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