Battery pressurizing device and method

Abstract

The invention belongs to the technical field of pressurizing devices, and particularly relates to a battery pressurizing device and method.The battery pressurizing device comprises a battery module and a pressurizing operation table, a middle sliding groove is formed in the center of the top of the pressurizing operation table, and two opposite-direction sliding seats which are symmetrically arranged are slidably mounted in the middle sliding groove; the sliding directions of the two different-direction sliding seats are opposite, the tops of the two different-direction sliding seats extend out of the middle sliding groove and are fixedly connected with follow-up push plates, the sides, close to each other, of the two follow-up push plates are fixedly connected with a plurality of evenly-distributed hollow cylinders, and the other ends of the hollow cylinders are fixedly connected with pressurizing plates. And the battery module is arranged at the top of the pressurizing operation table and is positioned between the two pressurizing plates. According to the invention, different surfaces of the battery module can be detected, battery modules of different specifications can be detected, the adaptability is high, the pressurization test and the flatness detection are integrated, the two test states can be freely switched, and the application is flexible and reliable.

Description

Technical Field

[0001] The present invention relates to a battery pressurizing device, and in particular to a battery pressurizing device and method. Background Art

[0002] As an emerging energy storage technology, solid-state batteries have attracted widespread attention due to their advantages such as high energy density, good safety and environmental friendliness. However, in the research and production of solid-state batteries, accurate measurement and evaluation of their performance is crucial. In order to meet this demand, a battery pressurization device is needed.

[0003] However, the battery pressurizing device in the prior art can only pressurize battery modules within a specific range of sizes, and is not compatible with battery modules of different sizes and different numbers of battery cells. Furthermore, it is not possible to detect the flatness of the battery module before pressurization. If there are excessive protrusions on the battery module before pressurization, it is very easy to directly damage the battery module during the pressurization process, and even cause a safety accident. Summary of the invention

[0004] The main purpose of the present disclosure is to provide a battery pressurizing device and method to effectively solve the problems raised by the inventor in the above background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A battery pressurizing device comprises a battery module and a pressurizing operating table, wherein a middle slide groove is provided at the center of the top of the pressurizing operating table, and two symmetrically arranged counter-directional slide seats are slidably installed in the middle slide groove, and the sliding directions of the two counter-directional slide seats are opposite, and the tops of the two counter-directional slide seats both extend outside the middle slide groove and are fixedly connected with a follower push plate, and the two follower push plates are fixedly connected with a plurality of evenly distributed hollow cylinders on the sides close to each other, and the other end of the hollow cylinder is fixedly connected with a pressurizing plate, the battery module is placed on the top of the pressurizing operating table and is located between the two pressurizing plates, and a main controller is fixedly installed on the front side of the pressurizing operating table, and the main controller includes a PLC controller and a display.

[0007] Preferably, a bidirectional X-axis screw is rotatably installed in the middle slide groove, and the two counter-directional slides are respectively threadedly installed at different threads on the bidirectional X-axis screw. An active servo motor is fixedly installed on the left side of the pressurizing operating table, and the output shaft of the active servo motor is fixedly connected to one end of the bidirectional X-axis screw, and the active servo motor is electrically connected to the PLC controller.

[0008] Preferably, a plurality of evenly distributed through holes are provided in the pressure plate, and a movable pressure measuring head is slidably installed in each through hole, a detection rod is slidably installed in the hollow cylinder, one end of the detection rod extends into the through hole and is fixedly connected to the movable pressure measuring head, the other end of the detection rod movably penetrates the follower push plate and is fixedly connected to a circular plate, a compression spring is fixedly connected between the circular plate and the follower push plate, and the detection rod penetrates the axis of the compression spring, and the thickness of the movable pressure measuring head is smaller than the outer diameter of the hollow cylinder.

[0009] Preferably, two parallel linear guide rails are fixedly installed on the top of the pressurizing operating table, and the linear guide rails are parallel to the middle slide groove, two follower sliders are fixedly installed in the two linear guide rails, and an extension frame is fixedly connected between the two follower sliders on the front and rear sides, the two extension frames are respectively fixedly connected to the two directional slide seats, the two follower push plates are located between the two extension frames, and the follower push plates are close to the circular plate.

[0010] Preferably, a number of evenly distributed limit holes are provided on the circular plate, an active force-applying column is movably provided in the limit hole, and a pressure sensor is fixedly installed on the side of the active force-applying column close to the circular plate, the detection end of the pressure sensor extends outside the limit hole, and the pressure sensor is electrically connected to the PLC controller and the display.

[0011] Preferably, the extension frame is fixedly connected to a mounting frame on one side away from the follower push plate, and an electric push rod is fixedly mounted on the mounting frame, the output end of the electric push rod is fixedly connected to a telescopic bar, and the telescopic bar moves in the mounting frame, and the active force column is fixedly mounted on the telescopic bar at one end away from the pressure sensor.

[0012] Preferably, movable openings are provided on the front and rear sides of the asymmetric slide seat, and a rotating shaft is rotatably installed in the movable opening, a guide roller is fixedly installed on the rotating shaft, and the guide roller extends out of the movable opening and contacts with the inner wall of the middle slide groove.

[0013] Preferably, the two pressure plates are distributed in mirror symmetry.

[0014] A pressurizing method of a battery pressurizing device comprises the following steps:

[0015] Place the battery module in the middle of the top surface of the pressurized operating table;

[0016] During the pressurization test, the active servo motor works, and the active servo motor drives the bidirectional X-axis screw to rotate, so that the two non-directional slides move toward each other in the middle slide, and the two follower push plates move toward each other, so that the middle cylinder and the pressurization plate move together. The two pressurization plates pressurize both sides of the battery module to detect whether the performance of the battery module meets the requirements;

[0017] During flatness detection, the electric push rod works to drive the telescopic strip to move in the direction of the follower push plate, that is, the active force column drives the pressure sensor to move until the detection end of the pressure sensor is squeezed onto the circular plate, so that the end of the movable pressure measuring head close to the battery module extends out of the through hole, and then the active servo motor works to make the movable pressure measuring heads on both sides move toward each other, and the movable pressure measuring heads squeeze the sides of the battery module. Since the force is mutual, the flatness of the battery module is judged by the data detected by each pressure sensor.

[0018] In view of this, compared with the prior art, the beneficial effects of the present invention are:

[0019] (I) In the present application, the active servo motor is controlled by a PLC controller, and the active servo motor drives the bidirectional X-axis lead screw to rotate, so that the two counter-directional slides move toward each other in the middle slide groove, and the guide roller rotates along the inner wall of the middle slide groove to ensure the smooth sliding of the counter-directional slides, that is, the two follower push plates move toward each other, so that the middle cylinder and the pressure plate move together, and then the two pressure plates pressurize both sides of the battery module to detect whether the performance of the battery module meets the requirements. This method can detect different surfaces of the battery module, and can detect battery modules of different specifications, and has strong adaptability.

[0020] (ii) In the present application, during the flatness detection, the electric push rod works to drive the telescopic strip to move in the direction of the follower push plate, that is, the active force column drives the pressure sensor to move until the detection end of the pressure sensor is squeezed onto the circular plate, so that the circular plate drives the detection rod and the movable pressure measuring head to move until the end of the movable pressure measuring head close to the battery module extends outside the through hole, and the compression spring is compressed. Subsequently, the active servo motor works to move the movable pressure measuring heads on both sides toward each other, and the movable pressure measuring heads squeeze the sides of the battery module. Since the force is mutual, if the pressure data detected by each pressure sensor is within the threshold value (in compliance with the flatness range), the battery module meets the standard specifications for use; if the pressure data detected by a pressure sensor is outside the threshold value, the battery module does not meet the specifications. The pressure test and flatness detection are integrated, and the two test states can be switched freely, which is flexible and reliable in application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a top view of the structure of the battery pressurizing device provided by the present invention;

[0022] Figure 2 The figure is a top cross-sectional view of the battery pressurizing device provided by the present invention;

[0023] Figure 3 Shown Figure 2 Schematic diagram of the local structure in;

[0024] Figure 4 Shown Figure 3 The enlarged schematic diagram of point A in the middle;

[0025] Figure 5 Shown is a top view of the differential slide.

[0026] icon:

[0027] 1-battery module; 2-pressurized operating table; 3-middle slide; 4-different-direction slide; 5-follow-up push plate; 6-hollow cylinder; 7-pressurized plate; 8-bidirectional X-axis screw; 9-active servo motor; 10-main controller; 11-detection rod; 12-movable pressure measuring head; 13-round plate; 14-compression spring; 15-linear guide; 16-follow-up slide; 17-extension frame; 18-installation frame; 19-telescopic strip; 20-active force column; 21-pressure sensor; 22-electric push rod; 23-rotating shaft; 24-guide roller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-5 , the present invention provides the following embodiments:

[0030] A battery pressurizing device comprises a battery module 1 and a pressurizing operating table 2, wherein a middle slide groove 3 is provided at the center of the top of the pressurizing operating table 2, and two symmetrically arranged opposite-direction slide seats 4 are slidably installed in the middle slide groove 3, and the sliding directions of the two opposite-direction slide seats 4 are opposite, and the tops of the two opposite-direction slide seats 4 both extend outside the middle slide groove 3 and are fixedly connected with a follower push plate 5, and the two follower push plates 5 are fixedly connected with a plurality of evenly distributed hollow cylinders 6 on the sides close to each other, and a pressurizing plate 7 is fixedly connected to the other end of the hollow cylinder 6, and the two pressurizing plates 7 are distributed in a mirror-symmetrical manner, and the battery module 1 is placed on the top of the pressurizing operating table 2 and is located between the two pressurizing plates 7, and a main controller 10 is fixedly installed on the front side of the pressurizing operating table 2, and the main controller 10 includes a PLC controller and a display.

[0031] Specifically, a bidirectional X-axis screw 8 is rotatably installed in the middle slide groove 3, and two different-direction slides 4 are respectively threadedly installed at different threads on the bidirectional X-axis screw 8. An active servo motor 9 is fixedly installed on the left side of the pressurizing operating table 2, and the output shaft of the active servo motor 9 is fixedly connected to one end of the bidirectional X-axis screw 8, and the active servo motor 9 is electrically connected to the PLC controller.

[0032] Specifically, a plurality of evenly distributed through holes are provided in the pressure plate 7, and a movable pressure measuring head 12 is slidably installed in each through hole, a detection rod 11 is slidably installed in the hollow cylinder 6, one end of the detection rod 11 extends into the through hole and is fixedly connected to the movable pressure measuring head 12, the other end of the detection rod 11 movably penetrates the follower push plate 5, and is fixedly connected to a circular plate 13, a compression spring 14 is fixedly connected between the circular plate 13 and the follower push plate 5, and the detection rod 11 penetrates the axis of the compression spring 14, the thickness of the movable pressure measuring head 12 is smaller than the outer diameter of the hollow cylinder 6, and two parallel linear guide rails 15 are fixedly installed on the top of the pressurizing operating table 2, and the linear guide rails 15 and the hollow cylinder 6 are fixedly installed. The intermediate slide grooves 3 are parallel, two follower sliders 16 are fixedly installed in the two linear guide rails 15, and an extension frame 17 is fixedly connected between the two follower sliders 16 on the front and rear sides, and the two extension frames 17 are fixedly connected to the two different-direction slide seats 4 respectively, and the two follower push plates 5 are located between the two extension frames 17, and the follower push plates 5 are close to the circular plate 13, and a number of evenly distributed limiting holes are opened on the circular plate 13, and an active force-applying column 20 is movably provided in the limiting hole, and a pressure sensor 21 is fixedly installed on the side of the active force-applying column 20 close to the circular plate 13, and the detection end of the pressure sensor 21 extends outside the limiting hole, and the pressure sensor 21 is electrically connected to the PLC controller and the display.

[0033] Specifically, the side of the extension frame 17 away from the follower push plate 5 is fixedly connected to the mounting frame 18, and the electric push rod 22 is fixedly installed on the mounting frame 18. The output end of the electric push rod 22 is fixedly connected to the telescopic bar 19, and the telescopic bar 19 is movable in the mounting frame 18. The end of the active force column 20 away from the pressure sensor 21 is fixedly installed on the telescopic bar 19.

[0034] Specifically, movable openings are provided on the front and rear sides of the different-direction slide 4, and a rotating shaft 23 is rotatably installed in the movable opening. A guide roller 24 is fixedly installed on the rotating shaft 23, and the guide roller 24 extends out of the movable opening and contacts the inner wall of the middle slide groove 3.

[0035] A pressurizing method of a battery pressurizing device comprises the following steps:

[0036] Place the battery module 1 in the middle of the top surface of the pressurized operating table 2;

[0037] During the pressurization test, the active servo motor 9 works, and the active servo motor 9 drives the bidirectional X-axis screw 8 to rotate, so that the two different-direction slides 4 move toward each other in the middle slide 3, and the two follower push plates 5 move toward each other, so that the middle cylinder 6 and the pressurization plate 7 move together, and the two pressurization plates 7 pressurize the two sides of the battery module 1 to detect whether the performance of the battery module 1 meets the requirements;

[0038] During the flatness detection, the electric push rod 22 works to drive the telescopic strip 19 to move in the direction of the follower push plate 5, that is, the active force column 20 drives the pressure sensor 21 to move until the detection end of the pressure sensor 21 is squeezed onto the circular plate 13, so that the end of the movable pressure measuring head 12 close to the battery module 1 extends to the outside of the through hole, and then the active servo motor 9 works to make the movable pressure measuring heads 12 on both sides move toward each other, and the movable pressure measuring heads 12 squeeze the side of the battery module 1. Since the force is mutual, the flatness of the battery module 1 is judged by the data detected by each pressure sensor 21.

[0039] The specific implementation of this embodiment is as follows: the battery module 1 is placed on the top of the pressurizing operation table 2. During the pressurizing operation, the active servo motor 9 is controlled by the PLC controller to work, and the active servo motor 9 drives the bidirectional X-axis screw 8 to rotate, so that the two different-direction slides 4 move toward each other in the middle slide 3, and the guide roller 24 rotates along the inner wall of the middle slide 3 to ensure the smooth sliding of the different-direction slide 4, that is, the two follower push plates 5 move toward each other, so that the middle cylinder 6 and the pressurizing plate 7 move together, and then the two pressurizing plates 7 pressurize the two sides of the battery module 1 to detect whether the performance of the battery module 1 meets the requirements. This method can detect different surfaces of the battery module 1, and can detect battery modules 1 of different specifications, and has strong adaptability;

[0040] It can also realize the flatness detection of the battery module 1;

[0041] During the detection, each structure is reset, and the electric push rod 22 works to drive the telescopic strip 19 to move in the direction of the follower push plate 5, that is, the active force column 20 drives the pressure sensor 21 to move until the detection end of the pressure sensor 21 is squeezed onto the circular plate 13, so that the circular plate 13 drives the detection rod 11 and the movable pressure measuring head 12 to move until the movable pressure measuring head 12 extends out of the through hole close to one end of the battery module 1, and the compression spring 14 is compressed. Then the active servo motor 9 works to make the movable pressure measuring heads 12 on both sides move toward each other, and the extension frame 17 moves therewith, and the movable pressure measuring head 12 squeezes the side of the battery module 1. Since the force is mutual, if the pressure data detected by each pressure sensor 21 is within the threshold value (in line with the flatness range), the battery module 1 meets the standard specifications for use; if the pressure data detected by the pressure sensor 21 is outside the threshold value, the battery module 1 does not meet the specifications. The pressure test and flatness detection are integrated, and the two test states can be switched freely, which is flexible and reliable in application.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A battery pressurizing device, characterized in that: The invention comprises a battery module (1) and a pressurizing operation table (2), wherein a middle slide groove (3) is provided at the center of the top of the pressurizing operation table (2), and two symmetrically arranged opposite-direction slide seats (4) are slidably installed in the middle slide groove (3), and the sliding directions of the two opposite-direction slide seats (4) are opposite, and the tops of the two opposite-direction slide seats (4) both extend outside the middle slide groove (3) and are fixedly connected with a follower push plate (5), and the two follower push plates (5) are fixedly connected with a plurality of evenly distributed hollow cylinders (6) on the sides close to each other, and the other end of the hollow cylinder (6) is fixedly connected with a pressurizing plate (7), and the battery module (1) is placed on the top of the pressurizing operation table (2) and is located between the two pressurizing plates (7), and a main controller (10) is fixedly installed on the front side of the pressurizing operation table (2), and the main controller (10) comprises a PLC controller and a display.

2. A battery pressurizing device according to claim 1, characterized in that: A bidirectional X-axis screw (8) is rotatably mounted in the middle slide groove (3), and the two different-direction slide seats (4) are respectively threadedly mounted at different threads on the bidirectional X-axis screw (8). An active servo motor (9) is fixedly mounted on the left side of the pressurizing operating table (2), and the output shaft of the active servo motor (9) is fixedly connected to one end of the bidirectional X-axis screw (8), and the active servo motor (9) is electrically connected to a PLC controller.

3. A battery pressurizing device according to claim 2, characterized in that: The pressure plate (7) is provided with a plurality of evenly distributed through holes, and a movable pressure measuring head (12) is slidably installed in each through hole. A detection rod (11) is slidably installed in the hollow cylinder (6). One end of the detection rod (11) extends into the through hole and is fixedly connected to the movable pressure measuring head (12). The other end of the detection rod (11) movably passes through the follower push plate (5) and is fixedly connected to a circular plate (13). A compression spring (14) is fixedly connected between the circular plate (13) and the follower push plate (5), and the detection rod (11) passes through the axis of the compression spring (14). The thickness of the movable pressure measuring head (12) is smaller than the outer diameter of the hollow cylinder (6).

4. A battery pressurizing device according to claim 3, characterized in that: Two parallel linear guide rails (15) are fixedly installed on the top of the pressurizing operating table (2), and the linear guide rails (15) are parallel to the middle slide groove (3). Two follower slide blocks (16) are fixedly installed in the two linear guide rails (15), and an extension frame (17) is fixedly connected between the two follower slide blocks (16) on the front and rear sides. The two extension frames (17) are respectively fixedly connected to the two different-direction slide seats (4). The two follower push plates (5) are located between the two extension frames (17), and the follower push plates (5) are close to the circular plate (13).

5. A battery pressurizing device according to claim 4, characterized in that: The circular plate (13) is provided with a plurality of evenly distributed limiting holes, an active force-applying column (20) is movably provided in the limiting hole, and a pressure sensor (21) is fixedly installed on one side of the active force-applying column (20) close to the circular plate (13), a detection end of the pressure sensor (21) extends outside the limiting hole, and the pressure sensor (21) is electrically connected to a PLC controller and a display.

6. A battery pressurizing device according to claim 5, characterized in that: The side of the extension frame (17) away from the follower push plate (5) is fixedly connected to a mounting frame (18), and an electric push rod (22) is fixedly mounted on the mounting frame (18); the output end of the electric push rod (22) is fixedly connected to a telescopic bar (19), and the telescopic bar (19) moves in the mounting frame (18); and the end of the active force column (20) away from the pressure sensor (21) is fixedly mounted on the telescopic bar (19).

7. A battery pressurizing device according to claim 2, characterized in that: The front and rear sides of the different-direction slide seat (4) are both provided with movable openings, and a rotating shaft (23) is rotatably mounted in the movable opening, a guide roller (24) is fixedly mounted on the rotating shaft (23), and the guide roller (24) extends outside the movable opening and contacts the inner wall of the middle slide groove (3).

8. A battery pressurizing device according to claim 7, characterized in that: The two pressure plates (7) are distributed in a mirror-symmetrical manner.

9. A pressurizing method for a battery pressurizing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Placing the battery module (1) in the middle of the top surface of the pressurized operating table (2); During the pressurization test, the active servo motor (9) works, and the active servo motor (9) drives the bidirectional X-axis screw (8) to rotate, so that the two non-directional slide seats (4) move toward each other in the middle slide groove (3), and the two follower push plates (5) move toward each other, so that the middle cylinder (6) and the pressurization plate (7) move together, and the two pressurization plates (7) pressurize the two sides of the battery module (1) to detect whether the performance of the battery module (1) meets the requirements; During the flatness detection, the electric push rod (22) works to drive the telescopic strip (19) to move in the direction of the follower push plate (5), that is, the active force-applying column (20) drives the pressure sensor (21) to move until the detection end of the pressure sensor (21) is pressed against the circular plate (13), so that the end of the movable pressure measuring head (12) close to the battery module (1) extends outside the through hole, and then the active servo motor (9) works to move the movable pressure measuring heads (12) on both sides toward each other, and the movable pressure measuring heads (12) press the side of the battery module (1). Since the force is mutual, the flatness of the battery module (1) is judged by the data detected by each pressure sensor (21).

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