A new energy vehicle battery fluid pressure detection device and use method

Abstract

A new energy vehicle battery fluid pressure detection device and use method, in the field of battery fluid pressure testing devices, can solve the problems raised in the background technology: the existing battery fluid pressure detection device can only detect one battery at a time, which is time-consuming and laborious, and the existing battery fluid pressure detection device can only perform simple detection and has poor safety. When the battery is under pressure, smoke and fire, it is impossible to extinguish the fire in time, which will cause fire or harm to the detection personnel. It can also solve the problem that when the battery catches fire, the existing battery fluid pressure detection device cannot isolate the burning battery separately, and the burning battery will ignite other batteries, thereby causing the fire to intensify. The steps are: S1: remove the cover plate, and place the batteries to be tested in multiple battery compartments respectively; S2: reset the cover plate and fix it with bolts; S3: turn the bidirectional screw to drive the extrusion plate to move against the battery for testing.

Description

Technical Field

[0001] The present invention belongs to the field of battery fluid pressure testing devices, and in particular to a new energy vehicle battery fluid pressure testing device and a use method thereof. Background Art

[0002] As an important performance indicator of the battery, the internal pressure test of the battery is particularly important, especially the accuracy of the test results. Battery fluid mainly refers to the current collector that conducts current and carries active substances in the battery. The functions of the current collector mainly include carrying capacity and conductivity, that is, during the charging and discharging process, the positive and negative currents are input to the active substances, and the current generated by the active substances is collected and output. Under pressure conditions, the electric field strength affects the movement speed of ions and molecules in the fluid, and then affects the conductivity of the fluid. Therefore, it is necessary to perform pressure detection on the battery fluid. The existing battery fluid pressure detection device can only detect one battery at a time, which is time-consuming and laborious. In addition, the existing battery fluid pressure detection device can only perform simple detection and has poor safety. If an emergency occurs, for example, when the battery is under pressure and smokes and catches fire, it cannot be extinguished in time, which will cause a fire or cause harm to the detection personnel. At the same time, when the battery catches fire, the existing battery fluid pressure detection device cannot isolate the battery that has caught fire separately. The battery that has caught fire will ignite other intact batteries, which will intensify the fire. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a new energy vehicle battery fluid pressure detection device and a method of use.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A new energy vehicle battery fluid pressure detection device comprises: a detection device, a pressure unit, a cover plate assembly and a fire extinguishing device, wherein the pressure unit is rotatably connected inside the detection device, the cover plate assembly is detachably connected to the upper end of the detection device, and the fire extinguishing device is fixed to the lower end of the detection device.

[0006] The detection device comprises: a detection box, a battery compartment, a cavity connecting hole and a rotating baffle, wherein a plurality of the battery compartments are evenly distributed along the circumference of the detection box, a cavity is provided in the detection box, and the plurality of the battery compartments are connected to the cavity through the connecting hole, the battery compartment passes through the upper top surface and the lower bottom surface of the detection box, and the bottom surface of the detection box is rotatably connected with a plurality of the rotating baffles, and the plurality of the rotating baffles correspond one-to-one to the plurality of the battery compartments, and the upper end of the bidirectional screw rotates to pass through the cover plate.

[0007] The pressure unit includes: a bidirectional screw, a threaded block, an extrusion assembly, a pillar, a fixed ring and a telescopic rod. The lower end of the bidirectional screw is rotatably connected to the bottom surface of the cavity through a bearing, and a threaded block is screwed on the bidirectional screw. The threaded blocks are symmetrically arranged in two. The extrusion assembly is rotatably connected to the two threaded blocks. The pillar is fixedly connected to the bottom surface of the cavity. The pillar is arranged in multiple numbers, and a fixing ring is fixed on the multiple pillars. The bidirectional screw passes through the fixing ring, and the two threaded blocks are respectively arranged on both sides of the fixing ring. The extrusion assembly is arranged in multiple numbers, and the multiple extrusion assemblies correspond one to one to the multiple battery compartments. The multiple telescopic rods are evenly fixed on the circumferential side of the fixing ring, and the multiple telescopic rods are respectively fixedly connected to the multiple extrusion assemblies.

[0008] The plurality of extrusion assemblies all include: a linkage rod and an extrusion plate, the rear end of the extrusion plate is rotatably connected to two of the linkage rods, the other ends of the two linkage rods are rotatably connected to the two threaded blocks, the telescopic rod is fixedly connected to the rear end of the extrusion plate, the size of the extrusion plate matches the size of the connecting hole, and the front end of the extrusion plate is set to an arc shape.

[0009] The cover plate assembly includes: a cover plate, a pressure column and a spring. The cover plate is arranged above the detection box and is detachably fixedly connected to the detection box by bolts. The cover plate is evenly slidably connected with a plurality of the pressure columns along its circumference. Each of the pressure columns is equipped with a spring. The plurality of springs correspond one-to-one to the plurality of battery compartments.

[0010] The fire extinguishing device includes: a fixed box, an electric telescopic rod, a fire extinguishing box, a truncated cone hole, an elastic baffle, an air pipe, a heat dissipation box and metal fins. The fixed box is provided with an upward opening. The fixed end of the electric telescopic rod is fixedly connected to the bottom surface of the fixed box. The movable end of the electric telescopic rod is fixedly connected to the bottom surface of the detection box. A plurality of the fire extinguishing boxes are evenly fixed along the circumference of the fixed box. The plurality of fire extinguishing boxes correspond to the plurality of battery compartments one by one. A truncated cone hole is provided above the interior of the fire extinguishing box. A plurality of the elastic baffles are fixed on the inner wall of the truncated cone hole. The elastic baffle is arranged in a fan shape. The plurality of the elastic baffles are combined into a circle. The side of the fire extinguishing box is fixedly connected with an air pipe. The air pipe is fixedly connected with a heat dissipation box. The heat dissipation box is fixed with a plurality of the metal fins.

[0011] A method for using a new energy vehicle battery fluid pressure detection device, the method comprising the following steps:

[0012] S1: Remove the cover and place the batteries to be tested in multiple battery compartments;

[0013] S2: Reset the cover and fix it with bolts;

[0014] S3: Rotate the bidirectional screw to move the extrusion plate against the battery for testing.

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

[0016] The present invention provides a new energy vehicle battery fluid pressure detection device, which can solve the problems raised in the background technology: the existing battery fluid pressure detection device can only detect one battery at a time, which is time-consuming and laborious, and the existing battery fluid pressure detection device can only perform simple detection and has poor safety. If an emergency occurs, such as: the battery is under pressure and produces smoke and fire, it cannot be extinguished in time, which will cause fire or harm to the detection personnel. It can also solve the problem that the existing battery fluid pressure detection device cannot isolate the battery on fire, and the battery on fire will ignite other intact batteries, which will cause the fire to intensify. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the overall structure;

[0018] Figure 2 is a top view of the test box;

[0019] Figure 3 is a top view of the detection box;

[0020] Figure 4 This is a bottom view of the detection box;

[0021] Figure 5 is a schematic diagram of the pressure unit structure;

[0022] Figure 6 is a top view of the extrusion assembly;

[0023] Figure 7 is a top view of the fixing ring;

[0024] Figure 8 It is a top view of the elastic baffle. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] A new energy vehicle battery fluid pressure detection device comprises: a detection device 1, a pressure unit 2, a cover plate assembly 3 and a fire extinguishing device 4, wherein the detection device 1 is rotatably connected to the pressure unit 2, the upper end of the detection device 1 is detachably connected to the cover plate assembly 3, and the lower end of the detection device 1 is fixed to the fire extinguishing device 4.

[0027] The detection device 1 includes: a detection box 1-1, a battery compartment 1-2, a cavity 1-3 connecting hole 1-4 and a rotating baffle 1-5. The detection box 1-1 is provided with a plurality of battery compartments 1-2 evenly distributed along its circumference. The detection box 1-1 is provided with a cavity 1-3. The plurality of battery compartments 1-2 are connected to the cavity 1-3 through the connecting hole 1-4. The battery compartment 1-2 passes through the upper top surface and the lower bottom surface of the detection box 1-1. The bottom surface of the detection box 1-1 is rotatably connected with a plurality of rotating baffles 1-5. The plurality of rotating baffles 1-5 correspond one-to-one to the plurality of battery compartments 1-2.

[0028] The pressure unit 2 includes: a bidirectional screw 2-1, a threaded block 2-2, an extrusion assembly 2-3, a pillar 2-4, a fixing ring 2-5 and a telescopic rod 2-6. The lower end of the bidirectional screw 2-1 is rotatably connected to the bottom surface of the cavity 1-3 through a bearing. The bidirectional screw 2-1 is screwed with a threaded block 2-2. The threaded blocks 2-2 are symmetrically arranged in two. The extrusion assembly 2-3 is rotatably connected to the two threaded blocks 2-2. The pillar 2-4 is fixedly connected to the bottom surface of the cavity 1-3. The pillar 2-4 is set to be multiple, a fixing ring 2-5 is fixed on the multiple pillars 2-4, the bidirectional screw 2-1 passes through the fixing ring 2-5, and the two threaded blocks 2-2 are respectively arranged on both sides of the fixing ring 2-5, and the extrusion assembly 2-3 is set to be multiple, and the multiple extrusion assemblies 2-3 correspond to the multiple battery compartments 1-2 one by one, and the multiple telescopic rods 2-6 are evenly fixed on the side of the fixing ring 2-5, and the multiple telescopic rods 2-6 are respectively fixedly connected to the multiple extrusion assemblies 2-3. The telescopic rod 2-6 can play a supporting and limiting role as it stretches or shortens when the extrusion plate 2-3-2 moves.

[0029] The multiple extrusion assemblies 2-3 all include: a connecting rod 2-3-1 and an extrusion plate 2-3-2. The rear ends of the extrusion plates 2-3-2 are rotatably connected to two of the connecting rods 2-3-1 respectively. The other ends of the two connecting rods 2-3-1 are rotatably connected to the two threaded blocks 2-2 respectively. The telescopic rod 2-6 is fixedly connected to the rear end of the extrusion plate 2-3-2. The size of the extrusion plate 2-3-2 matches the size of the connecting hole 1-4. The front end of the extrusion plate 2-3-2 is set to an arc shape.

[0030] The cover plate assembly 3 includes: a cover plate 3-1, a pressure column 3-2 and a spring 3-3. The cover plate 3-1 is arranged above the detection box 1-1 and is detachably fixedly connected to the detection box 1-1 by bolts. The cover plate 3-1 is evenly and slidably connected with multiple pressure columns 3-2 along its circumference. Each of the pressure columns 3-2 is equipped with a spring 3-3. The multiple springs 3-3 correspond to the multiple battery compartments 1-2 one by one. The upper end of the bidirectional screw 2-1 rotates to pass through the cover plate 3-1.

[0031] The fire extinguishing device 4 comprises: a fixed box 4-1, an electric telescopic rod 4-2, a fire extinguishing box 4-3, a truncated cone hole 4-4, an elastic baffle 4-5, an air pipe 4-6, a heat dissipation box 4-7 and a metal fin 4-8. The fixed box 4-1 is provided with an upward opening. The fixed end of the electric telescopic rod 4-2 is fixedly connected to the inner bottom surface of the fixed box 4-1. The movable end of the electric telescopic rod 4-2 is fixedly connected to the bottom surface of the detection box 1-1. A plurality of the fire extinguishing boxes 4-3 are evenly fixed inside the fixed box 4-1 along its circumference. The multiple fire extinguisher boxes 4-3 correspond one to one with the multiple battery compartments 1-2, a conical hole 4-4 is arranged on the upper part of the interior of the fire extinguisher box 4-3, a plurality of elastic baffles 4-5 are fixed on the inner wall of the conical hole 4-4, the elastic baffles 4-5 are arranged in a fan shape, and the multiple elastic baffles 4-5 are combined to form a circle, the side of the fire extinguisher box 4-3 is fixedly connected with an air pipe 4-6, the air pipe 4-6 is fixedly connected with a heat dissipation box 4-7, and a plurality of metal fins 4-8 are fixed inside the heat dissipation box 4-7.

[0032] A method for using a new energy vehicle battery fluid pressure detection device, the method comprising the following steps:

[0033] S1: Remove the cover plate 3-1 and place the batteries to be tested in the multiple battery compartments 1-2 respectively;

[0034] S2: Reset the cover plate 3-1 and fix it with bolts;

[0035] S3: Rotate the bidirectional screw 2-1 to drive the extrusion plate 2-3-2 to move against the battery for testing.

[0036] The working principle of the present invention is:

[0037] Remove the cover plate 3-1, and then place the batteries to be tested in the multiple battery compartments 1-2 respectively, and then reset the cover plate 3-1 and fix it with bolts. The cover plate 3-1 plays a blocking role when the battery smokes and catches fire, preventing the flames from escaping through the battery compartment 1-2 and burning the test personnel; during the test, the two-way screw 2-1 is rotated to pass through the limit of the telescopic rod 2-6, driving the two threaded blocks 2-2 to move relative to each other, and then the extrusion plate 2-3-2 is driven by the connecting rod 2-3-1 to move through the connecting hole 1-4 and press against the battery in the battery compartment 1-2. The front end of the extrusion plate 2-3-2 is set The arc shape can better limit the battery and avoid battery misalignment during detection; as the bidirectional screw 2-1 rotates, the extrusion plate 2-3-2 gradually increases the extrusion force on the battery, and then the battery fluid can be pressure tested. During the test, the battery can be connected to the pressure detection and current detection devices through wires. After the test is completed, the bidirectional screw 2-1 is rotated in the opposite direction to release the extrusion plate 2-3-2, and then the rotating baffle 1-5 is rotated. At this time, the battery is no longer blocked by the rotating baffle 1-5, and can be collected by sliding. Then the rotating baffle 1-5 is reset, and the cover plate 3-1 is removed to prepare for the next test.

[0038] When an accident occurs to the battery during the test, the device is connected to an external power supply to power the electric telescopic rod 4-2, and ammonium phosphate is poured into the fire extinguishing box 4-3 in advance. When one or more batteries are found to be smoking during the test, the electric telescopic rod 4-2 is energized and retracted. At this time, the rotating baffle 1-5 is abutted against the top of the fire extinguishing box 4-3 and aligned with the corresponding frustum hole 4-4. The rotating baffle 1-5 corresponding to the lower end of the smoking battery compartment 1-2 is rotated to one side. At this time, the smoking battery slides down and falls into the frustum hole 4-4. The frustum hole 4-4 is set to guide the battery to slide down and prevent the battery from falling to the outside in a horizontal state when it slides down. Then, the pressure column 3-2 corresponding to the smoking battery compartment 1-2 is pressed downward, and the spring 3-3 is compressed at the same time. The spring 3-3 plays the role of resetting the pressure column 3-2. The pressure column 3-2 moves downward, which can push the smoking battery in the battery compartment 1-2 to The battery moves downward to reduce human contact. The battery is pushed downward and the multiple elastic baffles 4-5 are deformed, so that the battery falls into the ammonium phosphate in the fire extinguishing box 4-3 through the multiple elastic baffles 4-5, and the fire can be extinguished. When the battery is on fire, the flame is in a jet shape. Therefore, after the battery passes through the multiple elastic baffles 4-5, the multiple elastic baffles 4-5 are reset elastically to block the spray of the battery flame. At the same time, the airflow generated by the battery flame spray flows into the heat dissipation box 4-7 through the air pipe 4-6, and the heat can be dissipated through the multiple metal fins 4-8 to avoid overheating and causing the device to melt. Through the above method, not only can multiple batteries be detected at the same time, but also the batteries can be isolated separately. In the event of an emergency, the battery on fire can also be handled separately to reduce human contact, thereby preventing the battery on fire from igniting other batteries and causing the fire to intensify. When the battery fire in the fire extinguishing box 4-3 is extinguished, the electric telescopic rod 4-2 is controlled to reset, and then the battery in the fire extinguishing box 4-3 is taken out and refilled with ammonium phosphate for reuse.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new energy vehicle battery fluid pressure detection device, characterized in that: include: A detection device (1), a pressure unit (2), a cover plate assembly (3) and a fire extinguishing device (4); the detection device (1) is internally rotatably connected to the pressure unit (2); the upper end of the detection device (1) is detachably connected to the cover plate assembly (3); the lower end of the detection device (1) is fixed with the fire extinguishing device (4); the pressure unit (2) comprises: a bidirectional screw (2-1), a threaded block (2-2), an extrusion assembly (2-3), a support (2-4), a fixing ring (2-5) and a telescopic rod (2-6); the lower end of the bidirectional screw (2-1) is rotatably connected to the bottom surface of the cavity (1-3) through a bearing; the upper end of the bidirectional screw (2-1) is screwed and connected to the threaded block (2-2); -2), the threaded blocks (2-2) are symmetrically arranged in two, the extrusion assembly (2-3) is rotatably connected to the two threaded blocks (2-2), the pillar (2-4) is fixedly connected to the bottom surface of the cavity (1-3), the pillar (2-4) is arranged in plurality, and a fixing ring (2-5) is fixed on the plurality of pillars (2-4), the bidirectional screw (2-1) passes through the fixing ring (2-5), the two threaded blocks (2-2) are respectively arranged on both sides of the fixing ring (2-5), the extrusion assembly (2-3) is arranged in plurality, the plurality of extrusion assemblies (2-3) correspond one to one to the plurality of battery compartments (1-2), and the circumferential side of the fixing ring (2-5) is evenly distributed with fixings. A plurality of telescopic rods (2-6) are fixedly connected to the plurality of extrusion assemblies (2-3) respectively. The fire extinguishing device (4) comprises: a fixed box (4-1), an electric telescopic rod (4-2), a fire extinguishing box (4-3), a truncated cone hole (4-4), an elastic baffle (4-5), an air pipe (4-6), a heat dissipation box (4-7) and a metal fin (4-8). The fixed box (4-1) is provided with an upward opening. The fixed end of the electric telescopic rod (4-2) is fixedly connected to the inner bottom surface of the fixed box (4-1). The movable end of the electric telescopic rod (4-2) is fixedly connected to the bottom surface of the detection box (1-1). The fixed box (4-1) is provided with an upward opening. 1) A plurality of fire extinguishing boxes (4-3) are evenly distributed and fixed along the circumference thereof, and the plurality of fire extinguishing boxes (4-3) correspond one to one with the plurality of battery compartments (1-2); a truncated cone hole (4-4) is arranged on the upper part of the interior of the fire extinguishing box (4-3); a plurality of elastic baffles (4-5) are fixed on the inner wall of the truncated cone hole (4-4); the elastic baffles (4-5) are arranged in a fan shape, and the plurality of elastic baffles (4-5) are combined to form a circle; a gas pipe (4-6) is fixedly connected to the side of the fire extinguishing box (4-3); the gas pipe (4-6) is fixedly connected to a heat dissipation box (4-7); a plurality of metal fins (4-8) are fixed inside the heat dissipation box (4-7).

2. A new energy vehicle battery fluid pressure detection device according to claim 1, characterized in that: The detection device (1) comprises: a detection box (1-1), a battery compartment (1-2), a cavity (1-3) communicating hole (1-4) and a rotating baffle (1-5); a plurality of battery compartments (1-2) are evenly arranged along the circumference of the detection box (1-1); a cavity (1-3) is arranged in the detection box (1-1); the plurality of battery compartments (1-2) are connected to the cavity (1-3) through the communicating hole (1-4); the battery compartment (1-2) passes through the upper top surface and the lower bottom surface of the detection box (1-1); the bottom surface of the detection box (1-1) is rotatably connected with the plurality of rotating baffles (1-5); the plurality of rotating baffles (1-5) correspond one to one to the plurality of battery compartments (1-2).

3. A new energy vehicle battery fluid pressure detection device according to claim 2, characterized in that: The plurality of extrusion assemblies (2-3) each comprise: a linkage rod (2-3-1) and an extrusion plate (2-3-2); the rear end of the extrusion plate (2-3-2) is rotatably connected to two linkage rods (2-3-1) respectively; the other ends of the two linkage rods (2-3-1) are rotatably connected to two threaded blocks (2-2) respectively; the telescopic rod (2-6) is fixedly connected to the rear end of the extrusion plate (2-3-2); the size of the extrusion plate (2-3-2) matches the size of the connecting hole (1-4); and the front end of the extrusion plate (2-3-2) is arranged to be arc-shaped.

4. A new energy vehicle battery fluid pressure detection device according to claim 3, characterized in that: The cover plate assembly (3) comprises: a cover plate (3-1), a pressure column (3-2) and a spring (3-3); the cover plate (3-1) is arranged above the detection box (1-1) and is detachably fixedly connected to the detection box (1-1) by bolts; the cover plate (3-1) is evenly slidably connected to a plurality of the pressure columns (3-2) along its circumference; each of the pressure columns (3-2) is provided with a spring (3-3); the plurality of springs (3-3) correspond to the plurality of battery compartments (1-2) one by one; and the upper end of the bidirectional screw (2-1) rotates to pass through the cover plate (3-1).

5. A method for using the new energy vehicle battery fluid pressure detection device according to claim 4, characterized in that: The method comprises the following steps: S1: Remove the cover plate (3-1) and place the batteries to be tested in the multiple battery compartments (1-2); S2: Reset the cover plate (3-1) and fix it with bolts; S3: Rotate the bidirectional screw (2-1) to drive the extrusion plate (2-3-2) to move against the battery for testing.

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