A battery pack module replacement system and method

Abstract

The present invention belongs to the technical field of electric vehicles, and discloses a battery pack module replacement system and method. It includes a battery pack module, a housing, a push-pull rod, a support structure and a plug. The housing is a rectangular cavity structure with one side open. The battery pack module includes a number of battery modules, and each battery module includes a number of basic battery units. One end of the battery pack module is arranged in the rectangular cavity of the housing and fixedly connected to the rectangular cavity, and the other end is exposed outside the rectangular cavity; one end of the push-pull rod is arranged on the housing and hinged to the housing; the support structure is arranged at the bottom of the housing and hinged to the support structure through the other end of the push-pull rod; the plug is arranged on the support structure and fixedly connected to the support structure. Through the structures of the push-pull rod, the support structure and the plug, the structure of the battery pack module cooperating with the housing is used for battery pack maintenance. The structure is simple, time-saving and labor-saving. While improving the detection and maintenance efficiency of the battery pack, the safety of maintenance operators is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicles, and in particular relates to a battery pack module replacement system and method. Background Art

[0002] The new energy batteries currently used in electric vehicles are generally large, but rather than being a single, integrated battery, they employ a unit-module-pack energy storage structure. A unit, made of chemical energy storage materials, serves as the fundamental unit of charge and discharge. Many units are combined into a module, and several or even a dozen modules are connected in series and parallel to form a pack, the main body of the battery. Modules serve as a transitional structure between units and packs, primarily to facilitate battery manufacturing and maintenance.

[0003] Currently, the typical battery maintenance method is to first inspect the entire battery pack and observe data such as voltage, current, and temperature. If any abnormalities are found, the modules are then checked one by one. Once an abnormal module is detected, it is replaced. When replacing a module, the module connection wires and data cables are first manually disconnected. The module is then removed as a whole and replaced with a new, functioning module. Finally, the wires are connected and tested. Once the test is complete, the module replacement is complete. This method of module replacement is not only time-consuming and labor-intensive to identify module problems, but the entire battery pack requires a long inspection to determine the condition and specific location of the module problem. Secondly, the disassembly and assembly of the module requires manual operation. However, due to the high voltage and heavy weight of battery modules, this work is not only time-consuming and labor-intensive, but also carries the risk of electric shock. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery pack module replacement system and method to solve the problems in the prior art;

[0005] In order to achieve the above object, the present invention proposes the following technical solutions:

[0006] A battery pack module replacement system includes a battery pack module, a housing, a push-pull rod, a support structure, and a plug, wherein:

[0007] The shell is a rectangular cavity structure with one side open;

[0008] The battery pack module includes a plurality of battery modules, each of which includes a plurality of battery basic units. One end of the battery pack module is disposed in the rectangular cavity of the housing and is fixedly connected to the rectangular cavity, and the other end is exposed outside the rectangular cavity.

[0009] One end of the push-pull rod is provided on the housing and is hinged to the housing;

[0010] The support structure is arranged at the bottom of the shell and is hinged to the other end of the push-pull rod;

[0011] The plug is disposed on the support structure and fixedly connected to the support structure.

[0012] Further, the support structure includes a bottom plate, side plates and a connecting plate, wherein:

[0013] The support structure is in the shape of a dustpan;

[0014] The bottom plate is disposed at the bottom of the housing;

[0015] There are two side plates, and the two side plates are disposed on both sides of the bottom plate and fixedly connected to the bottom plate;

[0016] The bottom edge of the connecting plate is fixedly connected to the bottom plate, and the two side edges of the connecting plate are fixedly connected to the two side plates.

[0017] Further, a buckle is further included, and the buckle includes a positioning member and a fastening member, wherein:

[0018] The positioning member of the buckle is disposed on the side plate of the support structure and fixedly connected to the side plate of the support structure;

[0019] The fastening member is disposed on the housing and is hinged to one end of the push rod at the same position.

[0020] Further, the plug includes a strong electricity plug and a weak electricity plug, wherein:

[0021] The positive and negative poles of the battery module are integrated to form the strong electricity plug;

[0022] The detection signal data line output end of the monitoring sensor is integrated to form the weak electricity plug;

[0023] Both the strong electricity plug and the weak electricity plug are fixedly connected to one side surface of the connecting plate and are located in the area surrounded by the connecting plate and the two side plates.

[0024] Further, a strong electricity socket and a weak electricity socket that are matched with the strong electricity plug and the weak electricity plug are provided at one end of the battery module that is matched with the housing.

[0025] Further, a monitoring sensor is provided in each battery module, and the monitoring sensor is fixedly connected to the battery module.

[0026] Further, the push rod is a telescopic push rod and includes a fixed part and a telescopic part, wherein:

[0027] The fixed part is a hollow columnar structure with one end open;

[0028] One end of the telescopic part is arranged inside the hollow structure of the fixed part, and the other end is exposed outside the fixed part. The telescopic part is detachably connected to the fixed part.

[0029] Further, the push rod includes a first push rod and a second push rod, where:

[0030] The number of the first push rods and the second push rods is two. The two first push rods are symmetrically arranged at one end of the outer shell, and the two second push rods are symmetrically arranged at the other end of the outer shell; the fixed parts of the first push rod and the second push rod are respectively hinged to the side plates of the support structure, and the telescopic parts of the first push rod and the second push rod are respectively hinged to the outer shell.

[0031] Further, a compression spring is arranged inside the hollow fixed part of the push rod, and the compression spring is detachably connected to the fixed part.

[0032] A battery pack module replacement method based on a battery pack module replacement system includes:

[0033] S1: Set a plug on the support section structure;

[0034] S2: Hinge one end of the push rod on the support structure, and hinge the other end of the push rod on the outer shell;

[0035] S3: Expose one end of the battery module outside the outer shell, and arrange the other end inside the outer shell;

[0036] S4: Make the battery module contact with the plug, and complete the detection of the battery module through the sensors arranged on the battery module.

[0037] Compared with the prior art, the advantages of the present invention are:

[0038] 1. Through the structures of the push rod, the support structure and the plug, the structure of the battery pack module cooperating with the outer shell is used for battery pack replacement and maintenance operations. The structure is simple, there is no need to disassemble the battery modules and battery cells in the battery pack, which saves time and effort. The maintenance operators do not directly contact the battery pack module and the internal battery cells, which improves the battery pack detection and maintenance efficiency and ensures the safety of the maintenance operators;

[0039] 2. The support structure in the shape of a dustpan is formed by connecting the bottom plate, the side plates and the connecting plate, so that the battery module is stably supported under the action of the support structure, which ensures the safety of the battery module during the replacement process and avoids the problem that the battery module is damaged due to excessive weight during the replacement process;

[0040] 3. Through the structure of the buckle, during the lifting and lowering of the battery module, the opening and closing of the buckle can ensure the stability of the working state and replacement state of the battery module, avoiding the problem of the battery pack shaking when subjected to external forces in the working and replacement states, and further ensuring the safety of the operators during the replacement of the battery pack;

[0041] 4. By integrating the positive and negative electrodes of the battery module to form the high-voltage plug and integrating the detection signal data line output end of the monitoring sensor to form the low-voltage plug, during the process of replacing and overhauling the battery pack module, it avoids the cumbersome operation of connecting each battery's positive and negative electrodes, connecting wires, and the detection lines of the sensors one by one. Instead, through the structure of integrating the lines into plugs, the overhaul and replacement of the battery pack are carried out through plugging and unplugging operations, which saves time and effort and ensures the safety of the operators at the same time;

[0042] 5. By setting sensors in the battery module, the sensors detect the data inside the battery module, and based on the data, the situation of the battery module is judged, avoiding the process of operators disassembling the battery pack and the battery module. Making the overhaul and replacement based on the data of the sensors is more rapid, convenient, and efficient;

[0043] 6. Through the telescopic push rod structure, the battery pack and the outer shell connected to the push rod can be lifted and lowered under the action of the telescopic push rod to detect the battery pack module. The structure is simple, convenient to operate, reduces the situation of operators carrying the battery pack, and improves the efficiency of replacing and inspecting the battery pack;

[0044] 7. Through the structure of setting a compression spring inside the fixed part of the hollow structure of the push rod, while the battery pack is being inspected and repaired, it can automatically lift and lower the battery pack while opening the buckle, further reducing the operation of the inspection and repair personnel during the operation and improving the inspection and repair efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings forming a part of this invention are used to provide a further understanding of the invention. The schematic embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention. In the drawings:

[0046] Figure 1 is a schematic top view structure diagram of a battery pack module of the present invention;

[0047] Figure 2 is a schematic front view structure diagram of a battery pack module replacement system of the present invention;

[0048] Figure 3 is a schematic top view structure diagram of a battery pack module replacement system of the present invention;

[0049] Figure 4Schematic front view of the working state of a battery pack module replacement system according to the present invention;

[0050] Figure 5 Flowchart of a method for replacing a battery pack module according to the present invention;

[0051] Where: 1 - battery module, 2 - outer shell, 3 - first push rod, 31 - fixing part, 32 - telescopic part, 4 - second push rod, 5 - support structure, 51 - side plate, 52 - connecting plate, 53 - bottom plate, 6 - weak current plug, 7 - strong current plug, 8 - buckle, 81 - positioning part, 82 - fastening part. Detailed implementation manners

[0052] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0053] The following detailed descriptions are all exemplary descriptions, aiming to provide further detailed descriptions of the present invention. Unless otherwise specified, all technical terms adopted by the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the present invention are only for the purpose of describing specific implementation manners, and are not intended to limit the exemplary embodiments according to the present invention.

[0054] A battery pack module replacement system of the present invention, as Figures 1-4 shown, includes a battery module 1, an outer shell 2, a push rod, a support structure 5, and a plug disposed on the support structure 5. Among them, the battery module 1 is composed of a plurality of battery units that are basic units for charge and discharge, and the plurality of battery units are made of chemical energy storage materials; preferably, the battery module 1 adopts a matrix arrangement, that is, a plurality of battery basic units are connected in sequence to form a rectangular structure. And the battery pack module is composed of a plurality of battery modules 1. In the battery pack, the battery modules 1 are arranged in a square matrix arrangement. The battery pack contains 9 battery modules 1, and the 9 battery modules 1 are accommodated in a large bracket according to a 3×3 arrangement, as Figure 1 shown. In the figure, A shown is the cross beam, and B shown is the longitudinal beam. The battery module 1 is distributed in a matrix manner through the structure of the cross beam A and the longitudinal beam B to form a battery pack; the longitudinal and cross beams of the bracket are used to support the overall shape of the battery pack and fix the modules. The small squares in the figure are 9 modules, the large square is the outer shape surrounded by the battery pack bracket, and the longitudinal and cross beams of the bracket intersect to enclose 9 medium-sized squares, which are the positions where each module is located.

[0055] More specifically, the outer shell 2 is a rectangular cavity structure, and one face in the rectangular cavity structure is removed as an opening. The size of the cavity is the same as one length of the battery module 1, so that the battery module 1 can be stably arranged in the cavity of the outer shell 2. Preferably, the removed face is the smallest one among all the faces of the rectangular structure. Preferably, the rectangular cavity structure is a thin-walled structure, which can be welded by thin plates or the like into a rectangular cavity of the size of the battery pack, and the battery pack is fixedly arranged in the rectangular cavity. When the battery pack is fixedly arranged in the shell of the rectangular cavity, a part of the battery pack is fixedly arranged in the shell, and the other part is exposed outside the shell.

[0056] Further, the support structure 5 is used to support the battery pack module and, in cooperation with the push-pull rod, is used to complete the detection, repair and replacement of the battery pack module. The support structure 5 includes a bottom plate 53, two side plates 51 and a connecting plate 52. Specifically: the bottom plate 53 is arranged at the bottom of the battery pack module, the two side plates 51 are respectively arranged on both sides of the bottom plate 53 and are fixedly connected to the edges of both side plates 51 respectively. A right-angle groove is formed by the two side plates 51 and the bottom plate 53, and the connecting plate 52 is fixed at one end of the right-angle groove. The bottom surface of the connecting plate 52 is fixedly connected to the side of the bottom plate 53. The two side edges of the connecting plate 52 adjacent to the bottom surface are fixedly connected to the side edge of the connecting plate 52, forming a right-angle groove closed on one side, and two plugs are arranged on one side of the closed end of the connecting plate 52. Specifically, the connection modes of the bottom plate 53, the connecting plate 52 and the side plates 51 are preferably welding modes to fixedly connect the three together.

[0057] More specifically, the push-pull rod includes a first push-pull rod 3 and a second push-pull rod 4, and the number of each push-pull rod is 2, that is, two first push-pull rods 3 and two second push-pull rods 4. Preferably, the first push-pull rod 3 and the second push-pull rod 4 are each two sections, that is, each push-pull rod includes a fixed portion 31 and a telescopic portion 32, wherein the fixed portion 31 is a cylindrical structure, including a cylindrical structure of a cylinder or a prism, an opening is provided at one end of the cylinder or the prism, and a blind hole that does not penetrate the cylindrical structure is provided on the opening, that is, the fixed portion 31 is a cylindrical structure with one end open, and a telescopic portion 32 connected to the fixed portion 31 is provided in the blind hole of the fixed structure, and a compression spring is provided in the blind hole between the fixed portion 31 and the telescopic portion 32, so that the telescopic portion 32 can slide guided by the blind hole of the fixed portion 31 when subjected to force. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4. The cam 8 is a kind of fixed part of the second push-pull rod 4, which is a kind of fixed part of the second push-pull rod 4.

[0058] Preferably, the first push-pull rod 3 and the second push-pull rod 4 are telescopic push-pull rods, including but not limited to a two-section structure. The push-pull rods can also be set to a multi-section structure to achieve better telescopic effect of the push-pull rods.

[0059] Furthermore, a strong current plug 7 and a weak current plug 6 are provided on the connecting plate 52 of the supporting structure 5. The strong current plug 7 and the weak current plug 6 are provided in the area formed by the connection of the connecting plate 52, the bottom plate 53 and the two side plates 51. A spacing distance is provided between the strong current plug 7 and the weak current plug 6. The strong current plug 7 and the weak current plug 6 are fixedly connected to the connecting plate 52. A socket that matches the strong current plug 7 and the weak current plug 6 is provided on the battery module 1 corresponding to the strong current plug 7 and the weak current plug, that is, a female connector that matches the strong current plug 7 and the weak current plug 6. Figures 3-4 As shown, the support structure 55 has an appearance similar to a dustpan and is surrounded by a bottom plate 53, two side plates 51 and a connecting plate 52. The bottom plate 53 is responsible for supporting the outer shell 2 and limiting the position. The rectangular outer shell 2 is used to accommodate part of the battery module 1, and the remaining part is contained on the longitudinal and transverse beams of the battery pack bracket, so that the battery modules 1 that make up the battery pack are a whole, and the battery modules 1 connected to the outer shell 2 can be connected to the plug.

[0060] Optionally, the outer shell 2 can also be set to a circular or regular polygon structure. The battery module 1 can also be partially or fully arranged inside the structure of the battery pack module, and the jacks cooperating with the high-voltage plug 7 and the low-voltage plug 6 are arranged on the circular or polygonal structure. Solutions with the same structure or principle as the present invention fall within the protection scope of the present invention.

[0061] Preferably, the overall size of the high-voltage plug 7 is larger than the overall size of the low-voltage plug 6.

[0062] Furthermore, as Figure 2 shown, a part of the structure of the battery module 1 is inserted into the outer shell 2. The outer shell 2 and the support structure 5 are connected by a push rod and a buckle 8. Both ends of the push rod are connecting hinges. One hinge connects the push rod and is hinged on the side of the outer shell 2, and the other hinge is arranged on the push rod and is used to be hinged with the side of the support structure 5. The push rod includes a telescopic part 32 and a fixed part 31. Among them, the telescopic part 32 is arranged inside the fixed part 31. The fixed part 31 preferably has a cylindrical structure. The telescopic part 32 can reciprocate along the inner wall of the cylinder of the fixed part 31. The telescopic part 32 of the push rod and the cylinder structure of the fixed part 31 enclose a closed internal cavity with variable volume, and there is a spring in the internal cavity to store elastic potential energy. The function of the telescopic rod is to restrict the relative movement trajectory between the outer shell 2 and the support structure 5 and provide support force. The buckle 8 is arranged between the two connecting rods, with the lower end fixed on the side of the support structure 5 and the upper end attached to the push rod hinge of the first connecting rod, and is used to strengthen the fixation in the working mode to prevent relative movement between the battery and the support structure 5 at this time.

[0063] Furthermore, the structures of the fixed part 31 and the telescopic part 32 of the push rod are preferably cylindrical structures, that is, both the fixed part 31 and the telescopic part 32 are cylindrical structures, so that the cylindrical telescopic part 32 can reciprocate in the cylindrical cavity of the cylindrical fixed part 31, realizing more convenient maintenance and replacement of the battery pack module.

[0064] Optionally, the external structure of the fixed part 31 of the push rod can also be set to a rectangular structure, and the cavity cooperating with the telescopic part 32 is set to a cylindrical structure.

[0065] When the battery is working properly, it is fixed by the buckle 8. At this time, the first push rod 3 is in a stretched state, and the second push rod 4 is in a compressed state. That is, the compression spring in the fixing part 31 of the first push rod 3 is not in a compressed state or bears less pressure, making the overall length of the first push rod 3 longer; while the spring in the fixing part 31 of the second push rod 4 is in a compressed state and can store elastic potential energy, making the overall length of the second push rod 4 shorter. With such a setting, in the replacement and maintenance state or the normal working state, either one of the first push rod 3 and the second push rod 4 is in a telescopic state, and the other is in a compressed state; when the battery pack is in the replacement and maintenance state, the push rod can keep the battery pack stable, and in the normal working state, the structure of the push rod can prevent the battery from shaking.

[0066] As Figure 2 and Figure 4 shown, they respectively correspond to the normal working mode and the replacement and maintenance mode of the battery pack, and respectively correspond to two final states of the movement trajectory of the outer shell 2 under the action of the push rod. When switching between the two modes, under the action of the push rod and the support structure 5, the battery outer shell 2 changes along a fixed trajectory between Figure 2 and Figure 4 . Specifically, a certain fixed trajectory is an arc-shaped trajectory, such as a crank and connecting rod structure. That is, the battery pack module moves from the horizontal state along the arc-shaped structure to the position shown in Figure 4 . When working properly, the battery is in the state shown in Figure 2 . When the battery is in the working state, the upper and lower ends of the buckle 8 are tightly fastened. Specifically, the buckle 8 includes a positioning part 81 and a fastening part 82. The positioning part 81 is arranged on the side plate 51 of the support structure 5 and is fixedly connected to the side plate 51 of the support structure 5; the fastening part 82 is arranged on the outer shell 2 and is hinged to one end of the push rod at the same position. That is, the positioning part 81 and the fastening part 82 of the buckle 8 are engaged with each other. At this time, the springs of the left and right connecting rods are both in a compressed state. When replacement and maintenance are needed, just open the buckle 8, the compression spring naturally expands, the first push rod 3 lifts the battery and the outer shell 2 upward, and the second push rod 4 pushes the battery and the outer shell 2 to the left. In this way, the battery and the outer shell 2 can pop out from the Figure 2 state and move to the state shown in Figure 4 . After completing the replacement and maintenance work in the Figure 4 state, apply an external force manually to compress the spring and push the battery from the Figure 4 state to the state shown in Figure 2 , and then fasten the buckle 8 to restore the module to the normal working state. That is, the entire replacement process is completed. At this time, the position of the module is restored, the plug connection is intact, and the battery pack can work properly.

[0067] Embodiment 2:

[0068] As Figure 5As shown, a method for replacing a battery pack module of the present invention includes:

[0069] S1: Set a plug on the support section structure;

[0070] S2: Hinge one end of the push rod on the support structure 5 and hinge the other end of the push rod on the outer shell 2;

[0071] S3: Expose one end of the battery module 1 outside the outer shell 2 and place the other end inside the outer shell 2;

[0072] S4: Make the battery module 1 contact the plug, and complete the detection of the battery module 1 through the sensor provided on the battery module 1.

[0073] Specifically, when replacing the battery pack module, the operation steps and principles are as follows:

[0074] As Figure 2 shown, the battery module 1 is rectangular and placed in the outer shell 2. The outer shell 2 and the support structure 5 are connected by left and right connecting rods. There are high-voltage and low-voltage interface female connectors at the rear of the battery. The female connectors correspond to the round holes at the rear of the outer shell 2. The support structure 5 has high-voltage and low-voltage interface male connectors at the rear. In the battery working mode, the male and female connectors are correspondingly connected, making the battery circuit in a connected state; in the battery maintenance mode, the male and female connectors are separated and the circuit is disconnected.

[0075] When a module needs to be replaced, first open the battery pack outer shell 2 to expose the battery bracket and module. Then, find the module to be replaced according to the monitoring data. After pressing the buckle 8, the upper and lower ends of the bayonet naturally separate, and the female connector of the module and the male connector of the outer shell 2 also naturally separate. At this time, the compression spring in the second push rod 4 expands, the internal chamber expands and relaxes, releasing elastic potential energy to push the outer shell 2 of the battery module 1, so that the outer shell 2 and the module are lifted together. When the spring force and the self-weight of the module reach a balanced state, that is, as Figure 4 shown. At this time, the module can be easily removed. The entire process does not require contacting the battery electrodes. Through the plug integration and structural design of the module, the safe and rapid disassembly of the module is achieved.

[0076] Further specifically, in the actual application process, when the battery pack or battery pack module is working normally, the sensors in the battery module 1 are connected to the in-vehicle data acquisition and monitoring system. The monitoring system can obtain the working parameters of each module in real time. Among them, the data obtained mainly includes the module voltage, current, and temperature. The module voltage, current, and temperature of the battery module 1 are detected by multiple sensors or integrated sensors arranged in the module. For example, an integrated temperature and humidity sensor and a sensor for monitoring voltage or a current sensor, a voltage sensor and a temperature sensor, etc. are used. And the sensors and components of each battery module are set to a unified standard, so that all parts and components used for the replacement of the battery pack module are interchangeable. When working normally, the electrical properties such as the volt-ampere characteristics and temperature of the module are monitored through general tools for the data detected by the module. Through the obtained parameters, the physical parameters of the battery module 1 obtained again can have similarity and predictability, and have a standard measurement curve. When there is a problem with the module, abnormalities will appear in parameters such as voltage, current, and temperature, which are inconsistent with the standard measurement curve or the data measured by other batteries. When the instrument sensor detects this inconsistency, it will compare it with the standard curve. If the gap reaches a certain value, it can be determined that there is a problem with the battery module 1, and an alarm will be given externally and the problematic module will be marked.

[0077] A battery pack module replacement system adopts a fully mechanical structure, enabling the battery pack module to pop out automatically without the need for electricity. It has a simple structure, is safe and reliable, and only requires adding a small number of parts to the existing battery structure. The process is simple, and all parts can be largely made of insulating materials to ensure electrical safety with little increase in cost. It realizes the rapid and safe replacement of the battery module 1, replacing the original complex method of replacing the entire battery, greatly improving work efficiency. Compared with the prior art, the integrated plug is safe and reliable, without problems such as exposed connection cables and disconnected solder joints, and is convenient for disassembly and assembly, without the need for soldering or desoldering of each solder joint. Moreover, the vehicle already has a computer, control chip, and circuit required for data acquisition and monitoring, and can currently complete the basic monitoring of the battery. Only necessary voltage, ammeter, thermometer, etc. need to be added to the module and connected to it to obtain the data required by this method in real time, without the need to redesign the control system and build the software and hardware, further simplifying the maintenance and replacement of the battery pack module.

[0078] As is known by technical common sense, the present invention can be implemented by other embodiments without departing from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or equivalent to the present invention are encompassed by the present invention.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific implementation manners of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A battery pack module replacement system, characterized in that: It comprises a battery pack module, a housing (2), a push-pull rod, a support structure (5) and a plug, wherein: The housing (2) is a rectangular cavity structure with one side open; The battery pack module comprises a plurality of battery modules (1), each battery module (1) comprising a plurality of battery basic units, one end of the battery pack module being arranged in the rectangular cavity of the housing (2) and fixedly connected to the rectangular cavity, and the other end being exposed outside the rectangular cavity; One end of the push-pull rod is arranged on the housing (2) and is hinged to the housing (2); The support structure (5) is arranged at the bottom of the housing (2) and is hinged to the other end of the push-pull rod; The plug is arranged on the supporting structure (5) and is fixedly connected to the supporting structure (5); The support structure (5) comprises a bottom plate (53), side plates (51) and a connecting plate (52), wherein: The supporting structure (5) is in the shape of a dustpan; The bottom plate (53) is arranged at the bottom of the housing (2); There are two side panels (51), and the two side panels (51) are arranged on both sides of the bottom panel (53) and are fixedly connected to the bottom panel (53); The bottom edge of the connecting plate (52) is fixedly connected to the bottom plate (53), and the two side edges of the connecting plate (52) are fixedly connected to the two side plates (51); The plug comprises a strong current plug (7) and a weak current plug (6), wherein: The high-voltage plug (7) is formed by integrating the positive and negative electrodes of the battery module (1); The weak current plug (6) is formed by integrating the detection signal data line output end of the monitoring sensor; The strong current plug (7) and the weak current plug (6) are both fixedly connected to one side surface of the connecting plate (52), and are located in the area enclosed by the connecting plate (52) and the two side plates (51); The push-pull rod comprises a first push-pull rod (3) and a second push-pull rod (4), wherein: The number of the first push-pull rod (3) and the number of the second push-pull rod (4) are both two, the two first push-pull rods (3) are symmetrically arranged at one end of the shell (2), and the two second push-pull rods (4) are symmetrically arranged at the other end of the shell (2); the fixed parts (31) of the first push-pull rod (3) and the second push-pull rod (4) are respectively hinged to the side panels (51) of the support structure (5), and the telescopic parts (32) of the first push-pull rod (3) and the second push-pull rod (4) are respectively hinged to the shell (2); A monitoring sensor is provided in each battery module (1), and the monitoring sensor is fixedly connected to the battery module (1).

2. A battery pack module replacement system according to claim 1, characterized in that: It also includes a buckle (8), which includes a positioning member (81) and a fastener (82), wherein: The positioning member (81) of the buckle (8) is arranged on the side plate (51) of the support structure (5) and is fixedly connected to the side plate (51) of the support structure (5); The fastener (82) is provided on the housing (2) and is hinged to one end of the push-pull rod at the same position.

3. The battery pack module replacement system according to claim 1, characterized in that: One end of the battery module (1) that matches the housing (2) is provided with a high-current socket and a low-current socket that match the high-current plug (7) and the low-current plug (6).

4. The battery pack module replacement system according to claim 1, characterized in that: The push-pull rod is a telescopic push-pull rod, comprising a fixed portion (31) and a telescopic portion (32), wherein: The fixing portion (31) is a hollow columnar structure with one end open; One end of the telescopic portion (32) is arranged in the hollow structure of the fixed portion (31), and the other end is exposed outside the fixed portion (31); the telescopic portion (32) and the fixed portion (31) are detachably connected.

5. A battery pack module replacement system according to claim 4, characterized in that: A compression spring is provided in the hollow fixing portion (31) of the push-pull rod, and the compression spring is detachably connected to the fixing portion (31).

6. A battery pack module replacement method, characterized in that: A battery pack module replacement system according to any one of claims 1 to 5, comprising: S1: arranging a plug on the support structure (5); S2: hinge one end of the push-pull rod on the support structure (5), and hinge the other end of the push-pull rod on the housing (2); S3: exposing one end of the battery module (1) to the outer shell (2), and placing the other end inside the outer shell (2); S4: The battery module (1) is brought into contact with the plug, and the battery module (1) is detected by a sensor provided on the battery module (1).

Images