Battery safety testing device for energy storage power station

Abstract

The invention provides an energy storage power station battery safety testing device, and belongs to the technical field of energy storage power station battery testing. Comprising two sets of inner measuring boxes and an outer measuring box, the two sets of inner measuring boxes are located at the two ends in the outer measuring box respectively, an execution device is arranged in each inner measuring box and comprises a rotating shaft, swing assemblies are arranged on the two sides of the middle of each rotating shaft, and the two sets of swing assemblies are arranged in a central symmetry mode relative to the middle of each rotating shaft. The execution device is arranged to drive the warm hammer ball at the bottom of the arc-shaped swing arm to be in contact with each battery cell in the battery pack, so that each battery cell in the battery pack is subjected to high-temperature or low-temperature test, and meanwhile, the swing force of the arc-shaped swing arm is changed to hammer each battery cell in the battery pack; therefore, impact testing is carried out on each battery cell in the battery pack, and the problems that an existing testing device can only detect the whole battery pack and the detection result is not comprehensive are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power station battery testing, and in particular to an energy storage power station battery safety testing device. Background Art

[0002] Energy storage power station battery pack safety test: including impact test and environmental adaptability test. The impact test usually uses a cylinder set around the battery pack and perpendicular to the battery pack to drive the impact head to hit the battery pack. The environmental adaptability test is to place the battery pack in an oven to heat it for a period of time or put it in a low-temperature test box to simulate the working state of the battery in extreme environments.

[0003] Since the battery pack of the energy storage power station is composed of several batteries arranged together and battery racks spliced ​​together, the safety performance of the battery pack is determined by the individual battery cells. The existing impact test device can only test the battery pack as a whole. Similarly, the existing environmental adaptability test usually uses an oven or a low-temperature test chamber to simulate high and low temperature environments. It can only perform environmental tests on the battery pack as a whole. If the test result shows that the battery pack is unqualified, the battery pack must be completely replaced. It is impossible to perform individual tests on each battery cell in the battery pack, thereby increasing the battery manufacturing cost.

[0004] Therefore, the present application provides a battery safety testing device for an energy storage power station to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a battery safety testing device for an energy storage power station. The execution device drives the temperature hammer ball at the bottom of the arc-shaped swing arm to contact each battery cell in the battery pack, thereby performing a high temperature or low temperature test on each battery cell in the battery pack. At the same time, the swing force of the arc-shaped swing arm is changed to hammer each battery cell in the battery pack, thereby performing an impact test on each battery cell in the battery pack, so as to solve the problem that the existing testing device can only detect the battery pack as a whole and the detection result is incomplete.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A battery safety test device for an energy storage power station, comprising an inner test box and an outer test box, wherein the inner test box is provided with two groups, and is respectively located at two ends of the inner part of the outer test box, and an execution device is provided inside the inner test box, and the execution device comprises a rotating shaft, and swing components are provided on both sides of the middle part of the rotating shaft, and the two groups of swing components are centrally symmetrically arranged about the middle part of the rotating shaft;

[0008] The swing assembly includes a straight double swing arm, two groups of side walls of the straight double swing arm are in active contact, a bearing is installed on the middle inner wall of the straight double swing arm, the rotating shaft is rotatably connected to the inner wall of the straight double swing arm through the bearing, a crossbeam bridge is fixedly installed on one end of the straight double swing arm by bolts, and an arc-shaped swing arm is installed on the other end of the straight double swing arm.

[0009] Optionally, the inner walls on both sides of the inner measuring box are rotatably connected to driven wheels, and two groups of driven wheels located on the inner wall on the same side are provided and mesh with each other. Positioning seats are fixedly installed on the outer walls at both ends of the crossbeam bridge, and auxiliary swing arms are rotatably connected to the two groups of positioning seats. The other end of the auxiliary swing arm is rotatably connected to the corresponding inner wall of the driven wheel, and the connection point does not coincide with the center of the driven wheel. The two groups of auxiliary swing arms are arranged in a face-symmetrical manner.

[0010] Optionally, a receiving groove is provided on the middle side wall of the arc-shaped swing arm, the inner wall of the receiving groove cooperates with the end wall of the straight double swing arm, and the arc-shaped swing arm is fixedly connected to the end wall of the straight double swing arm by bolts, an electric heating seat and a temperature transfer block are fixedly installed at both ends of the arc-shaped swing arm, a temperature conduction groove is provided on the middle inner wall of the temperature transfer block, a cold temperature hammer ball is clamped at the bottom of the temperature transfer block, and the cold temperature hammer ball is connected to the inside of the temperature conduction groove, a temperature conduction pipe is fixedly installed on the inner wall of the arc-shaped swing arm, and the output end of the temperature conduction pipe is sealed and connected to the inside of the temperature conduction groove, and a hot temperature hammer ball is clamped at the bottom of the electric heating seat.

[0011] Optionally, the outer walls on both sides of the middle part of the rotating shaft are sleeved with gasket rings, and the two groups of gasket rings are respectively in active contact with the corresponding inner walls of the straight double swing arms, and driving wheels are fixedly installed at both ends of the rotating shaft, and the two groups of driving wheels are only engaged with the driven wheels at the bottom of this side, and the rotating shaft is rotatably connected to the inner wall of the inner measuring box, and a motor 1 is fixedly installed on the outer wall of the inner measuring box, and the output shaft of the motor 1 is fixedly connected to the end wall of the rotating shaft.

[0012] Optionally, an introduction groove is provided in the middle of the two end walls of the inner testing box, and a slide rail 1 is fixedly installed on the inner walls on both sides of the introduction groove. The same slide seat 1 is slidably connected to multiple groups of the slide rails 1, and a cylinder 1 is fixedly installed on both sides of the bottom of the introduction groove, and the output end of the cylinder 1 is fixedly connected to the bottom of the slide seat 1. A conducting groove 1 is provided at the center of the bottom of the slide seat 1, and slide rails 2 are fixedly installed on both sides of the inner wall of the bottom of the slide seat 1, and slide seats 2 are slidably connected to two groups of the slide rails 2. Cylinder 2 is fixedly installed on the inner wall of the bottom of the slide seat 1, and the output end of the cylinder 2 is fixedly connected to the second end wall of the slide seat.

[0013] Optionally, slide rails three are fixedly installed on both sides of the top of the slide seat two, and battery assembly seats are slidably connected on two groups of slide rails three. A screw is rotatably connected to the middle of the slide seat two, and a motor two is fixedly installed on the top end wall of the slide seat two, and the output end of the motor two is fixedly connected to the screw end wall, the bottom of the battery assembly seat is meshed with the screw, and a conducting groove two is opened at the bottom of the battery assembly seat, and the conducting groove two is connected with the conducting groove one, and multiple groups of battery blocks are fixedly installed on the inner walls on both sides of the bottom of the battery assembly seat.

[0014] Optionally, a partition is fixedly installed on the inner wall in the middle of the outer measuring box, and the partition divides the outer measuring box into a cold temperature zone and a hot temperature zone. The two groups of inner measuring boxes are respectively located inside the cold temperature zone and the hot temperature zone. A cooling device is fixedly installed on the outer wall of the cold temperature zone, and the cooling device can control the temperature of the cold temperature zone. A heating device is fixedly installed on the outer wall of the hot temperature zone, and the heating device can control the temperature of the hot temperature zone.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above scheme, if the temperature test of the battery pack in the external test box fails, the cooling device or the heating device is turned off to restore the internal temperature of the external test box to room temperature. Thereafter, the motor one is driven at a low speed, and the cylinder two and the motor two are driven at the same time, so that the cold temperature hammer balls or the hot temperature hammer balls at the front ends of the two sets of arc-shaped swing arms can pass through the conduction groove one and the conduction groove two to contact each battery cell on the battery pack, and low-temperature gas is injected into the temperature conduction groove through the temperature conduction pipe to cool the cold temperature hammer ball, or the hot temperature hammer ball is heated through the electric heating seat, so as to perform high and low temperature tests on the single battery cell, so as to find out the unqualified battery cell, and at the same time evaluate whether the battery system will spread to the entire battery system when a single battery cell is thermally runaway.

[0017] After the environmental adaptability test of the battery pack is completed, the battery pack needs to be subjected to an impact test. At this time, it is only necessary to drive the motor 1 at a high speed in conjunction with the cylinder 2 and the motor 2 so that the cold-temperature hammer ball or the hot-temperature hammer ball can perform all-round high-speed hammering on each battery cell of the battery pack. At the same time, by driving the cylinder 1 to drive the slide 1 to move on the Z axis, the hammering angle of the cold-temperature hammer ball or the hot-temperature hammer ball on the battery pack can be changed, thereby changing the force direction. At this time, by observing the power detection equipment, it is determined whether the battery pack to be tested is working normally. If the temperature of the cold-temperature hammer ball or the hot-temperature hammer ball is changed, it can be detected whether the battery pack can work normally under extreme environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a battery safety test device for an energy storage power station;

[0020] Figure 2 It is a schematic diagram of the structure inside the external test box;

[0021] Figure 3 It is a structural diagram of the inner test box;

[0022] Figure 4 This is a schematic diagram of the structure inside the internal test box;

[0023] Figure 5 It is a schematic diagram of the structure of the components inside the introduction tank;

[0024] Figure 6 FIG. 1 is a diagram showing the installation position of the slide seat 1 inside the guide groove;

[0025] Figure 7 The installation position diagram of the battery assembly seat in the slide seat 1;

[0026] Figure 8 This is a schematic diagram of the installation of various components on the slide seat 2;

[0027] Fig. 9 The installation position diagram of the actuator;

[0028] Fig.10 It is a schematic diagram of the structure of the execution device;

[0029] Fig.11 It is a state diagram of the actuator not working;

[0030] Fig.12 It is the state diagram of the execution device when it is working;

[0031] Fig.13 This is a disassembled diagram of the rotating shaft and the straight double swing arm;

[0032] Fig.14 This is the assembly diagram of the rotating shaft and the straight double swing arm;

[0033] Fig.15 This is a schematic diagram of the assembly of the arc swing arm;

[0034] Fig.16 This is the assembly disassembly diagram of the arc swing arm;

[0035] Fig.17 It is a structural schematic diagram of an arc-shaped swing arm;

[0036] Fig.18 is a schematic diagram of the structure of the swing assembly;

[0037] Fig.19 It is a schematic diagram of the structure when performing device detection;

[0038] Fig. 20 This is a state diagram when the cylinder lifts up the battery pack to work;

[0039] Fig.21 This is a top view of the device when performing detection.

[0040] Reference numerals:

[0041] Inner test box 100, actuator 110, rotating shaft 111, driving wheel 112, washer 113, motor 114, swing assembly 120, double swing arm 121, bearing 122, crossbeam bridge 123, positioning seat 124, auxiliary swing arm 125, driven wheel 126, arc swing arm 130, temperature conducting pipe 131, temperature transfer block 132, temperature conducting groove 133, cold temperature hammer ball 134, electric heating seat 135, hot temperature hammer ball 136, receiving groove 137, introduction groove 140, slide rail 1 141, slide seat 1 142, cylinder 1 143, conduction groove 1 144, slide rail 2 145, cylinder 2 146, slide seat 2 147, slide rail 3 148, screw 149, motor 2 150, battery assembly seat 151, conduction groove 2 152, battery block 153, external test box 200, partition 210, cold temperature zone 220, hot temperature zone 230, cooling device 240, heating device 250.

[0042] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0043] The following is a detailed description of a battery safety test device for an energy storage power station provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods for some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0044] like Figures 1 to 21 As shown, an embodiment of the present invention provides a battery safety test device for an energy storage power station, including an inner test box 100 and an outer test box 200, wherein the inner test box 100 is provided with two groups, and the two groups are respectively located at two ends of the inner part of the outer test box 200, and an execution device 110 is provided inside the inner test box 100, and the execution device 110 includes a rotating shaft 111, and swing assemblies 120 are provided on both sides of the middle of the rotating shaft 111, and the two groups of swing assemblies 120 are centrally symmetrically arranged about the middle of the rotating shaft 111;

[0045] The swing assembly 120 includes a straight double swing arm 121, and two groups of side walls of the straight double swing arm 121 are in active contact. A bearing 122 is installed on the inner wall of the middle part of the straight double swing arm 121. The rotating shaft 111 is rotatably connected to the inner wall of the straight double swing arm 121 through the bearing 122. A crossbeam bridge 123 is fixedly installed at one end of the straight double swing arm 121 by bolts, and an arc-shaped swing arm 130 is installed at the other end of the straight double swing arm 121.

[0046] As an implementation method in this embodiment, Figures 9 to 12 As shown, the inner walls on both sides of the inner test box 100 are rotatably connected with driven wheels 126, and there are two groups of driven wheels 126 located on the inner wall of the same side, which are meshed with each other. Positioning seats 124 are fixedly installed on the outer walls at both ends of the crossbeam bridge 123, and auxiliary swing arms 125 are rotatably connected to the two groups of positioning seats 124. The other end of the auxiliary swing arm 125 is rotatably connected to the inner wall of the corresponding driven wheel 126, and the connection point does not coincide with the center of the driven wheel 126. The two groups of auxiliary swing arms 125 are arranged in a face-symmetrical manner.

[0047] As an implementation method in this embodiment, Figures 15 to 18As shown, a receiving groove 137 is provided on the middle side wall of the arc-shaped swing arm 130, and the inner wall of the receiving groove 137 cooperates with the end wall of the straight double swing arm 121, and the arc-shaped swing arm 130 is fixedly connected to the end wall of the straight double swing arm 121 by bolts, and an electric heating seat 135 and a temperature transfer block 132 are fixedly installed at both ends of the arc-shaped swing arm 130, and a temperature conduction groove 133 is provided on the inner wall of the middle of the temperature transfer block 132, and a cold temperature hammer ball 134 is clamped at the bottom of the temperature transfer block 132, and the cold temperature hammer ball 134 is connected to the inside of the temperature conduction groove 133, and a temperature conduction pipe 131 is fixedly installed on the inner wall of the arc-shaped swing arm 130, and the conduction pipe 131 is fixedly installed on the inner wall of the arc-shaped swing arm 130. The output end of the temperature pipe 131 is sealed and connected to the inside of the temperature conducting groove 133. A gas with a low freezing point, such as nitrogen, can be introduced into the temperature conducting pipe 131. A hot hammer ball 136 is clamped at the bottom of the electric heating seat 135. In the present invention, if the battery pack fails the temperature test, the cooling device 240 or the heating device 250 is turned off to restore the internal temperature of the outer test box 200 to room temperature. Thereafter, the motor 114 is driven at a low speed so that its output shaft drives the rotating shaft 111 to rotate, thereby driving the two sets of driving wheels 112 to rotate, so that the driving wheels 112 and the opposite sets of driving wheels 112 are rotated. The corresponding driven wheels 126 are meshed, thereby driving the two sets of driven wheels 126 to mesh with each other. Since the two sets of one-line double swing arms 121 are centrally symmetrically arranged, the two sets of auxiliary swing arms 125 on the same side turn in opposite directions, so that the two sets of crossbeam bridges 123 and the arc-shaped swing arms 130 turn in opposite directions. At the same time, the second cylinder 146 is driven to drive the second slide 147 to move on the X axis, and the second motor 150 is driven to drive the output shaft to drive the screw 149 to mesh with the battery assembly seat 151, thereby driving the battery assembly seat 151 to move on the Y axis. At this time, the cold temperature hammer ball 134 (or the hot temperature hammer ball 136) at the front end of the two groups of arc-shaped swing arms 130 can pass through the conductive groove 144 and the conductive groove 2 152 to contact each battery cell on the battery pack, and inject low-temperature gas into the thermal groove 133 through the thermal tube 131 to cool the cold temperature hammer ball 134, or heat the hot temperature hammer ball 136 through the electric heating seat 135, so as to perform high and low temperature tests on a single battery cell, thereby finding out unqualified battery cells and evaluating whether the battery system will spread to the entire battery system when a single battery cell has thermal runaway.

[0048] In this embodiment, if Figure 3 , Fig.13 and Fig.14As shown, both sides of the middle part of the rotating shaft 111 are sleeved with gasket rings 113, and the two groups of gasket rings 113 are respectively in active contact with the corresponding inner walls of the one-line double swing arm 121, and the gasket rings 113 support the one-line double swing arm 121 and the rotating shaft 111 to prevent the one-line double swing arm 121 from moving when rotating. Driving wheels 112 are fixedly installed at both ends of the rotating shaft 111, and the two groups of driving wheels 112 are only engaged with the driven wheels 126 at the bottom of this side. The rotating shaft 111 is rotatably connected to the inner wall of the inner test box 100, and the outer wall of the inner test box 100 is fixedly installed with a motor 114, and the output shaft of the motor 114 is fixedly connected to the end wall of the rotating shaft 111. In the present invention, after the environmental adaptability test of the battery pack is completed, When the battery pack needs to be impact tested, it is only necessary to drive the motor 114 at high speed and cooperate with the cylinder 2 146 and the motor 2 150 so that the cold-temperature hammer ball 134 (or the hot-temperature hammer ball 136) can perform all-round high-speed hammering on each battery cell of the battery pack. At the same time, by driving the cylinder 143 to drive the slide 142 to move on the Z axis, the hammering angle of the cold-temperature hammer ball 134 (or the hot-temperature hammer ball 136) on the battery pack can be changed, thereby changing the force direction. At this time, by observing the electrical detection equipment, it is determined whether the battery pack to be tested is working normally. If the temperature of the cold-temperature hammer ball 134 (or the hot-temperature hammer ball 136) is changed, it is possible to detect whether the battery pack can work normally under extreme conditions.

[0049] In this embodiment, if Figures 3 to 8 As shown, an introduction groove 140 is provided in the middle of both end walls of the inner test box 100, and a slide rail 141 is fixedly installed on the inner walls of both sides of the introduction groove 140, and a plurality of sets of slide rails 141 are slidably connected with a same slide seat 142, and a cylinder 143 is fixedly installed on both sides of the bottom of the introduction groove 140, and the output end of the cylinder 143 is fixedly connected to the bottom of the slide seat 142, and the cylinder 143 is driven to drive the slide seat 142 to slide on the slide rail 141, so that the slide seat 142 moves on the Z axis. Displacement, a conducting groove 144 is opened at the center of the bottom of the slide 142, and two slide rails 145 are fixedly installed on both sides of the inner wall of the bottom of the slide 142. Slides 147 are slidably connected to the two sets of slide rails 145. Cylinders 146 are fixedly installed on the inner wall of the bottom of the slide 142, and the output end of cylinder 146 is fixedly connected to the end wall of slide 147. By driving cylinder 146, it drives slide 147 to slide on slide rail 145, so that slide 147 is displaced on the X-axis.

[0050] Slide rails 3 148 are fixedly installed on both sides of the top of the slide seat 2 147, and a battery assembly seat 151 is slidably connected to the two sets of slide rails 3 148. A screw 149 is rotatably connected to the middle of the slide seat 2 147. A motor 2 150 is fixedly installed on the top end wall of the slide seat 2 147, and the output end of the motor 2 150 is fixedly connected to the end wall of the screw 149. The bottom of the battery assembly seat 151 is meshed with the screw 149. By driving the motor 2 150, its output shaft drives the screw 149 to mesh with the battery assembly seat 151, thereby driving the battery assembly seat 151 to slide on the slide rails 3 148, so that the battery assembly seat 151 is displaced on the Y axis. A conducting groove 2 152 is provided at the bottom of the battery assembly seat 151. 2 is connected with the conducting groove 144, and multiple groups of battery clamp blocks 153 are fixedly installed on the inner walls on both sides of the bottom of the battery assembly seat 151. In the present invention, after the battery group to be tested is clamped into the battery clamp block 153, the second cylinder 146 is driven to drive the second slide 147 to slide on the second slide rail 145, and the second motor 150 is driven to drive the screw 149 to engage with the battery assembly seat 151 through its output shaft, thereby driving the battery assembly seat 151 to slide on the third slide rail 148, and the first cylinder 143 is driven to drive the slide 142 to slide on the first slide rail 141, so that the battery group to be tested can be displaced on the X, Y, and Z axes, which is convenient for temperature and impact testing of a single battery cell.

[0051] In this embodiment, if Figure 1 and Figure 2 As shown, a partition 210 is fixedly installed on the inner wall of the middle of the outer test box 200, and the partition 210 divides the outer test box 200 into a cold temperature zone 220 and a hot temperature zone 230. The partition 210 is made of a thermal insulation material, which can prevent the temperature of the cold temperature zone 220 and the hot temperature zone 230 from interfering with each other. The two groups of inner test boxes 100 are respectively located inside the cold temperature zone 220 and the hot temperature zone 230. A cooling device 240 is fixedly installed on the outer wall of the cold temperature zone 220, and the cooling device 240 can control the temperature of the cold temperature zone 220 and the hot temperature zone 230. A heating device 250 is fixedly installed on the outer wall 30, and the heating device 250 can control the temperature of the hot temperature zone 230. In the present invention, two groups of battery packs to be tested that constitute the same battery pack are taken and placed in the battery card blocks 153 on both sides of the inner test box 100 respectively. At the same time, the two groups of battery packs are respectively connected to external power detection equipment. Thereafter, the inner test box 100 is placed in the cold temperature zone 220 and the hot temperature zone 230 respectively to perform an overall temperature test, and whether the battery pack to be tested is working normally is determined by observing the power detection equipment.

[0052] The working principle of the technical solution provided by the present invention is as follows: take two groups of battery packs to be tested that constitute the same battery pack, place them in the battery card blocks 153 on both sides of the internal test box 100 respectively, and connect the two groups of battery packs to the power detection equipment respectively, and then place the internal test box 100 in the cold temperature zone 220 and the hot temperature zone 230 respectively, perform the overall temperature test, and judge whether the battery packs to be tested are working normally by observing the power detection equipment;

[0053] If the battery pack fails the temperature test, the cooling device 240 or the heating device 250 is turned off to restore the internal temperature of the outer test box 200 to room temperature. Thereafter, the motor 114 is driven at a low speed to make its output shaft drive the rotating shaft 111 to rotate, thereby driving the two sets of driving wheels 112 to rotate, so that the driving wheels 112 are meshed with the corresponding driven wheels 126, thereby driving the two sets of driven wheels 126 to mesh with each other. Since the two sets of one-line double swing arms 121 are centrally symmetrically arranged, the two sets of auxiliary swing arms 125 on the same side turn in opposite directions, so that the two sets of crossbeam bridges 123 and the arc swing arms 130 turn in opposite directions. At the same time, the cylinder 2 146 is driven to drive the slide 2 147 to move on the X-axis. By driving the second motor 150, its output shaft drives the screw 149 to mesh with the battery assembly seat 151, thereby driving the battery assembly seat 151 to move on the Y axis. At this time, the cold temperature hammer ball 134 (or the hot temperature hammer ball 136) at the front end of the two sets of arc-shaped swing arms 130 can pass through the first conduction groove 144 and the second conduction groove 152 to contact each battery cell on the battery pack, and inject low-temperature gas into the heat conduction groove 133 through the heat conduction tube 131 to cool the cold temperature hammer ball 134, or heat the hot temperature hammer ball 136 through the electric heating seat 135, so as to perform high and low temperature tests on a single battery cell, thereby finding unqualified batteries, and at the same time evaluating whether the battery system will spread to the entire battery system when a single battery cell is thermally out of control;

[0054] After the environmental adaptability test of the battery pack is completed, the battery pack needs to be subjected to an impact test. At this time, it is only necessary to drive the motor 114 at high speed and cooperate with the cylinder 2 146 and the motor 2 150 so that the cold-temperature hammer ball 134 (or the hot-temperature hammer ball 136) can perform all-round high-speed hammering on each battery cell of the battery pack. At the same time, by driving the cylinder 143 to drive the slide 142 to move on the Z axis, the hammering angle of the cold-temperature hammer ball 134 (or the hot-temperature hammer ball 136) on the battery pack can be changed, thereby changing its force direction. At this time, by observing the electrical detection equipment, it is determined whether the battery pack to be tested is working normally. If the temperature of the cold-temperature hammer ball 134 (or the hot-temperature hammer ball 136) is changed, it can be detected whether the battery pack can work normally under extreme environments.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A battery safety test device for an energy storage power station, comprising an inner test box (100) and an outer test box (200), wherein the inner test box (100) is provided with two groups, and is respectively located at two ends of the inner part of the outer test box (200), characterized in that: An execution device (110) is provided inside the inner test box (100), and the execution device (110) includes a rotating shaft (111), and swing components (120) are provided on both sides of the middle of the rotating shaft (111), and the two sets of swing components (120) are centrally symmetrically arranged about the middle of the rotating shaft (111); The swing assembly (120) comprises a straight double swing arm (121), the side walls of two groups of the straight double swing arms (121) are in movable contact, a bearing (122) is installed on the inner wall of the middle part of the straight double swing arm (121), the rotating shaft (111) is rotatably connected to the inner wall of the straight double swing arm (121) through the bearing (122), a crossbeam bridge (123) is fixedly installed on one end of the straight double swing arm (121) by bolts, and an arc-shaped swing arm (130) is installed on the other end of the straight double swing arm (121).

2. The energy storage power station battery safety test device according to claim 1, characterized in that: The inner walls on both sides of the inner measuring box (100) are rotatably connected with driven wheels (126), and two groups of driven wheels (126) located on the inner wall of the same side are provided and mesh with each other. Positioning seats (124) are fixedly installed on the outer walls at both ends of the crossbeam bridge (123), and auxiliary swing arms (125) are rotatably connected to the two groups of positioning seats (124). The other end of the auxiliary swing arm (125) is rotatably connected to the inner wall of the corresponding driven wheel (126), and the connection point does not coincide with the center of the driven wheel (126). The two groups of auxiliary swing arms (125) are arranged in a plane-symmetrical manner.

3. The energy storage power station battery safety test device according to claim 1, characterized in that: A receiving groove (137) is provided on the middle side wall of the arc-shaped swing arm (130), and the inner wall of the receiving groove (137) cooperates with the end wall of the straight double swing arm (121), and the arc-shaped swing arm (130) is fixedly connected to the end wall of the straight double swing arm (121) by bolts, and an electric heating seat (135) and a temperature transfer block (132) are fixedly installed at both ends of the arc-shaped swing arm (130), and the inner wall of the middle of the temperature transfer block (132) is provided. A temperature conducting groove (133) is provided, a cold temperature hammer ball (134) is clamped at the bottom of the temperature transfer block (132), the cold temperature hammer ball (134) is communicated with the inside of the temperature conducting groove (133), a temperature conducting pipe (131) is fixedly installed on the inner wall of the arc-shaped swing arm (130), and the output end of the temperature conducting pipe (131) is sealed and communicated with the inside of the temperature conducting groove (133), and a hot temperature hammer ball (136) is clamped at the bottom of the electric heating seat (135).

4. The energy storage power station battery safety test device according to claim 1, characterized in that: The outer walls of both sides of the middle of the rotating shaft (111) are sleeved with gaskets (113), and the two groups of gaskets (113) are respectively in active contact with the inner walls of the corresponding inline double swing arms (121). Driving wheels (112) are fixedly installed at both ends of the rotating shaft (111), and the two groups of driving wheels (112) are respectively only meshed with driven wheels (126) at the bottom of the side. The rotating shaft (111) is rotatably connected to the inner wall of the inner measuring box (100), and the outer wall of the inner measuring box (100) is fixedly installed with a motor 1 (114), and the output shaft of the motor 1 (114) is fixedly connected to the end wall of the rotating shaft (111).

5. The energy storage power station battery safety test device according to claim 1, characterized in that: The inner measuring box (100) is provided with an introduction groove (140) in the middle of both end walls, and the inner walls on both sides of the introduction groove (140) are fixedly installed with a slide rail (141), and multiple groups of the slide rails (141) are slidably connected with the same slide seat (142), and the bottom of the introduction groove (140) is fixedly installed with a cylinder (143), and the output end of the cylinder (143) is fixedly connected to the bottom of the slide seat (142), and the center of the bottom of the slide seat (142) is provided with a conducting groove (144), and the bottom inner wall of the slide seat (142) is fixedly installed with a slide rail (145) on both sides, and the two groups of the slide rails (145) are slidably connected with a slide seat (147), and the bottom inner wall of the slide seat (142) is fixedly installed with a cylinder (146), and the output end of the cylinder (146) is fixedly connected to the end wall of the slide seat (147).

6. The energy storage power station battery safety test device according to claim 5, characterized in that: Slide rails 3 (148) are fixedly installed on both sides of the top of the slide seat 2 (147), and two groups of the slide rails 3 (148) are slidably connected to a battery assembly seat (151). A screw rod (149) is rotatably connected to the middle of the slide seat 2 (147), and a motor 2 (150) is fixedly installed on the top end wall of the slide seat 2 (147), and the output end of the motor 2 (150) is fixedly connected to the end wall of the screw rod (149). The bottom of the battery assembly seat (151) is meshed with the screw rod (149), and a conducting groove 2 (152) is opened at the bottom of the battery assembly seat (151), and the conducting groove 2 (152) is connected to the conducting groove 1 (144). Multiple groups of battery blocks (153) are fixedly installed on the inner walls on both sides of the bottom of the battery assembly seat (151).

7. The energy storage power station battery safety test device according to claim 1, characterized in that: A partition (210) is fixedly installed on the inner wall in the middle of the outer measuring box (200), and the partition (210) divides the outer measuring box (200) into a cold temperature zone (220) and a hot temperature zone (230). The two groups of inner measuring boxes (100) are respectively located inside the cold temperature zone (220) and the hot temperature zone (230). A cooling device (240) is fixedly installed on the outer wall of the cold temperature zone (220), and the cooling device (240) can control the temperature of the cold temperature zone (220). A heating device (250) is fixedly installed on the outer wall of the hot temperature zone (230), and the heating device (250) can control the temperature of the hot temperature zone (230).

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