Fire-resistant detection equipment

Abstract

The utility model discloses fire resistance detection equipment. The fire-resistant detection equipment comprises a detection box, a flaming device and a temperature sensor assembly, a linear moving assembly is arranged in the detection box, a supporting part used for placing a to-be-detected product is arranged on the linear moving assembly, and the axis where the supporting part is located is perpendicular to the axis where the moving assembly is located; a clamping assembly used for clamping a to-be-tested product is arranged on the supporting part; the flaming device is arranged on one side in the detection box and used for jetting flames to the to-be-detected product, and the linear moving assembly is used for driving the supporting part to be away from or close to the flaming device; the temperature sensor assembly is arranged on the side wall of the detection box and used for detecting the surface temperature of the side, right facing the flaming device, of the to-be-detected product and the surface temperature of the side, back to the flaming device, of the to-be-detected product in real time. The fire-resistant detection equipment for the battery upper cover is simple and convenient to operate, can detect the temperatures of the front and back surfaces of the battery upper cover in real time, improves the detection accuracy, and determines the heat insulation performance of the battery box upper cover by observing the front and back surfaces of the burnt battery upper cover.

Description

Technical Field

[0001] The present application relates to the field of performance testing of new energy vehicle components, and specifically to a fire-resistant burning testing device. Background Art

[0002] With the improvement of people's living standards and the current trend of environmental protection, energy saving and green ecological earth, new energy vehicles are developing more and more with the strong support of the country, and their applications are becoming more and more extensive. The battery modules supporting new energy vehicles are also developing rapidly accordingly. The battery cover is an important component in the battery pack module, which determines the service life and quality of the battery module.

[0003] At present, the main materials for making new energy vehicle battery covers include glass fiber composite materials, composite materials + metal, metal, mica + composite materials + metal or fire retardant coating + metal, etc., which make the new energy vehicle battery cover have good fire resistance. However, the fire resistance performance detection device for new energy vehicle battery covers in the existing technology often has problems such as the detection accuracy cannot meet the requirements of the detection system, the temperature is too high during long-term detection resulting in low safety, and the operation is complicated and difficult to detect, requiring special personnel to operate. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the purpose of this application is to provide a fire-resistant burn detection equipment, which is simple and convenient to operate, can detect the temperature of the front and back sides of the product to be tested (new energy vehicle battery cover) in real time, improve the detection accuracy, and determine the thermal insulation performance of the battery box cover by observing the front and back sides of the battery cover after fire.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] A fire-resistant burn detection device, the fire-resistant burn detection device comprising:

[0007] A test box, wherein a linear moving assembly is disposed in the test box, a support portion for placing the test object is disposed on the linear moving assembly, an axis of the support portion and an axis of the moving assembly are perpendicular to each other, and a clamping assembly for clamping the test object is disposed on the support portion;

[0008] A flame spraying device is arranged at one side of the detection box and is used to spray flames toward the test object. The linear moving assembly is used to drive the support part away from or close to the flame spraying device.

[0009] The temperature sensor assembly is arranged on the side wall of the detection box and is used to detect the surface temperature of the side of the product to be detected facing the flame spraying device and the surface temperature of the side facing away from the flame spraying device in real time.

[0010] In one embodiment, the temperature sensor assembly includes a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged on a side plate of the detection box on a side close to the flamethrower, the second temperature sensor is arranged on a side plate of the detection box on a side facing the injection port of the flamethrower, and the first temperature sensor, the second temperature sensor and the injection port of the flamethrower are coaxially arranged.

[0011] In one embodiment, both of the temperature sensors are laser temperature sensors.

[0012] In one embodiment, the flame spraying device is connected to an oxygen source and a fuel gas source, wherein the fuel gas source is one or a combination of propane, acetylene and methane.

[0013] In one embodiment, a smoke exhaust structure is further included, and the smoke exhaust structure includes a smoke exhaust hood arranged on the top of the detection box and a smoke extractor arranged outside the detection box, and the smoke exhaust hood and the smoke extractor are connected through a smoke exhaust channel.

[0014] In one embodiment, the linear motion assembly comprises:

[0015] A hand-cranked screw rod, on which a screw rod seat is slidably arranged, the support portion is arranged on the screw rod seat, and a driving unit is arranged at one end of the hand-cranked screw rod away from the flamethrower;

[0016] Two sliding guide rails are respectively arranged on both sides of the hand-cranked movable lead screw and are arranged parallel to the hand-cranked movable lead screw. A plurality of sliding blocks are sleeved on each of the sliding guide rails.

[0017] In one embodiment, the driving unit is a hand wheel or a motor.

[0018] In one embodiment, the support portion includes a movable plate fixedly connected to the screw seat and a plurality of sliders, a lifting support rod arranged on the movable plate, and a support frame arranged on the top of the lifting support rod, wherein the midline of the support frame is perpendicular to the water level surface.

[0019] In one embodiment, the clamping assembly includes a clamp disposed on the lifting support rod and a plurality of fixing clips movably disposed on the top of the support frame.

[0020] In one embodiment, a laser temperature display component is further included, and the laser temperature display component is electrically connected to the temperature sensor component.

[0021] Beneficial Effects

[0022] In the present application, a temperature sensor assembly is provided to simultaneously detect the temperature of the surface of the side of the test object facing the flame spraying device and the surface of the side facing away from the flame spraying device. While detecting the surface temperature of the side of the test object facing the flame spraying device, the temperature of the flame sprayed by the flame spraying device can also be detected in real time, thereby ensuring that the flame temperature can meet the detection requirements, which is beneficial to improving the test accuracy. At the same time, by providing a linear moving assembly, not only can the distance between the test object and the flame spraying device be effectively adjusted, but it can also facilitate loading and unloading of the operator. By providing a clamping assembly on the support portion, displacement of the test object during the detection process is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure. The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the content of the present application.

[0024] Figure 1 A schematic diagram of the structure of a battery cover fire resistance detection device provided in an embodiment of the present application;

[0025] Figure 2 A side view of a battery cover fire resistance detection device provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the internal structure of the battery cover fire resistance detection equipment provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted as the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where the constituent elements are connected together through an element with some electrical function. "Elements with some electrical function" are not particularly limited as long as they can transfer electrical signals between the connected constituent elements. "Elements with some electrical function" can be, for example, electrodes or wiring, or switching elements such as transistors, or other functional elements such as resistors, inductors or capacitors. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0029] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0030] The present application discloses a fire-resistant burn detection device, which includes a detection box, a flame spraying device and a temperature sensor assembly. A linear moving assembly is arranged in the detection box, and a support part for placing the test object is arranged on the linear moving assembly, and the axis of the support part is perpendicular to the axis of the moving assembly, and a clamping assembly for clamping the test object is arranged on the support part; the flame spraying device is arranged on one side of the detection box, and is used to spray flames to the test object, and the linear moving assembly is used to drive the support part away from or close to the flame spraying device; the temperature sensor assembly is arranged on the side wall of the detection box, and is used to detect the surface temperature of the side of the test object facing the flame spraying device and the surface temperature of the side facing away from the flame spraying device in real time. The battery cover fire-resistant burn detection device is simple and convenient to operate, and can detect the temperature of the front and back sides of the battery cover in real time, thereby improving the detection accuracy.

[0031] Next join Figure 1-Figure 3To describe a fire-resistant burn detection device provided in an embodiment of the present application, the fire-resistant burn detection device is suitable for the battery cover of new energy vehicles. The fire-resistant burn detection device is simple and convenient to operate, and can detect the temperature of the front and back sides of the product to be tested (new energy vehicle battery cover) in real time to improve the detection accuracy.

[0032] The cover fire-resistant burning detection equipment comprises a detection box 10, a flame spraying device 40 and a sensor assembly 50.

[0033] A linear moving assembly 20 is arranged in the detection box 10, and a support part 30 for placing the test object is arranged on the linear moving assembly 20, the axis of the support part 30 is perpendicular to the axis of the moving assembly 20, and a clamping assembly for clamping the test object is arranged on the support part; a flame spraying device 40 is arranged at one side of the detection box 10, and is used to spray flames to the test object, and the linear moving assembly 20 is used to drive the support part 30 away from or close to the flame spraying device 40; a temperature sensor assembly 50 is arranged on the side wall of the detection box 40, and is used to detect the surface temperature of the test object on the side facing the flame spraying device 40 and the surface temperature of the side facing away from the flame spraying device 40 in real time.

[0034] It should be noted that in the present application, by setting up a temperature sensor assembly 50, the temperature of the side surface of the test object facing the flamethrower 40 and the side surface facing away from the flamethrower 40 are detected at the same time. While detecting the temperature of the side surface of the test object facing the flamethrower 40, the temperature of the flame sprayed by the flamethrower 40 can also be detected in real time, ensuring that the flame temperature can meet the detection requirements, which is beneficial to improving the test accuracy. At the same time, by setting up a linear moving assembly 20, not only can the distance between the test object and the flamethrower 40 be effectively adjusted, but it is also convenient for operators to load and unload materials. By setting a clamping assembly on the support portion 30, the displacement of the test object during the detection process is avoided.

[0035] refer to Figure 2In this embodiment, the temperature sensor assembly 50 includes a first temperature sensor 51 and a second temperature sensor 52, wherein the first temperature sensor 51 is arranged on a side plate of the detection box 10 on a side close to the flame spraying device 40, and the second temperature sensor 52 is arranged on a side plate of the detection box 10 on a side facing the injection port of the flame spraying device 40, and the first temperature sensor 51, the second temperature sensor 52 and the injection port of the flame spraying device 40 are coaxially arranged. Further, both sensors are laser temperature sensors. In this embodiment, the first temperature sensor 51 is used to detect the surface temperature of the side of the test object facing the flame spraying device 40, and at the same time During this process, the temperature of the flame sprayed from the flamethrower 40 is also detected. The second temperature sensor 52 is used to detect the surface temperature of the side of the product to be tested that is opposite to the flamethrower 40, and the first temperature sensor 51, the second temperature sensor 52 and the injection port of the flamethrower 40 are coaxially arranged. The first temperature sensor 51 and the second temperature sensor 52 measure the temperature at the center of the flame, which is conducive to maintaining the accuracy of the test. At the same time, in order to further improve the accuracy of the test, when the fire resistance burning test is performed on the product to be tested (the battery cover of the new energy vehicle), the temperatures of the side surface of the product to be tested facing the flamethrower 40 and the side surface facing away from the flamethrower 40 are measured.

[0036] In this embodiment, the flamethrower 50 is respectively connected to an oxygen source (not marked in the drawings) and a fuel gas source (not marked in the drawings), wherein the fuel gas source is one or a combination of propane, acetylene and methane, and the gas supply source of the flamethrower adopts a mixed combustion of an oxygen source and a fuel gas source. A suitable fuel gas source is selected according to the test requirements of different products to be tested. Compared with a pure fuel gas source, the use of oxygen as a combustion-supporting gas makes combustion more complete and the flame temperature higher, and a flow control valve is connected between the flamethrower and the oxygen source and the fuel gas source to control the pressure of the flame sprayed by the flamethrower.

[0037] In this embodiment, the fire-resistant burning detection equipment can be adjusted according to the battery failure temperature of different new energy vehicles or the specific needs of customers. The temperature range of the flame sprayed by the flame spraying device of the equipment can be adjusted to 600℃-1500℃, the flame pressure is 0-1MPa, and the burning time is 0-30min. For example, the out-of-control temperature of the lithium iron phosphate battery cell is 600℃, that is, the temperature of the flame sprayed by the flame spraying device is greater than or equal to 600℃, and the out-of-control temperature of the ternary lithium battery cell is 1200℃, that is, the temperature of the flame sprayed by the flame spraying device is greater than or equal to 1200℃.

[0038] refer to Figure 1 In this embodiment, a smoke exhaust structure is also included, which includes a smoke exhaust hood 61 arranged on the top of the detection box and a smoke extractor 60 arranged outside the detection box. The smoke exhaust hood 61 and the smoke extractor 60 are connected through a smoke exhaust channel 62. The smoke exhaust structure is used to exhaust waste gas and particulate matter generated by combustion.

[0039] refer to Figure 2-Figure 3 In this embodiment, the linear moving assembly 20 includes a screw rod 21 and two sliding guide rails 22, a screw rod seat (not marked in the drawings) is slidably arranged on the screw rod, and the support part is arranged on the screw rod seat. A driving unit is arranged at one end of the screw rod 21 away from the flamethrower 40; the two sliding guide rails 22 are respectively arranged on both sides of the screw rod 21 and are arranged parallel to the screw rod 21, and each sliding guide rail 22 is sleeved with a plurality of sliders (not marked in the drawings). Specifically, a hand wheel 23 is arranged at one end of the screw rod 21 away from the flamethrower 40, and the screw rod 21 is rotated by manually turning the hand wheel, thereby driving the support part 30 to approach or move away from the flamethrower 40, or a motor (not shown in the drawings) is arranged at one end of the screw rod 21 away from the flamethrower 40, and the screw rod 21 is rotated by rotating the motor, thereby driving the support part 30 to approach or move away from the flamethrower 40. This design can not only effectively adjust the distance between the product to be tested and the flamethrower, but also facilitate the operator to load and unload materials.

[0040] refer to Figure 2-Figure 3 In this embodiment, the support part 30 includes a movable plate 31 fixedly connected to a screw seat and several sliders, a lifting support rod 32 arranged on the movable plate 31, and a support frame 33 arranged on the top of the lifting support rod 32, wherein the midline of the support frame 33 is perpendicular to the horizontal plane; the clamping assembly includes a clamp (not shown in the accompanying drawings) arranged on the lifting support rod 32 and several fixing clips (not shown in the accompanying drawings) movably arranged on the top of the support frame 33, wherein the clamp is used to hang and fix the battery cover placed on the support frame; for battery covers with larger sizes, the battery cover on the support frame can be doubly fixed by the clamp and several fixing clips to avoid falling off during the detection process and affecting the detection structure. At the same time, the midline of the support frame is perpendicular to the horizontal plane, so that the battery cover is perpendicular to the flame. During the test, the flame pressure will be concentrated at one position, further improving the accuracy of the test.

[0041] refer to Figure 2 In this embodiment, the battery cover fire resistance detection equipment also includes a laser temperature display assembly, the laser temperature display is electrically connected to the temperature sensor assembly, the laser display assembly includes a first laser temperature display 71 and a second laser display 72, the first laser temperature display 71 is electrically connected to the first laser temperature sensor 51, and the second laser temperature display 72 is electrically connected to the second laser temperature sensor 52. By setting the laser display assembly, it is convenient for the staff to intuitively observe the temperature of the detection box.

[0042] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with the technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit of the present application shall be included in the protection scope of the present application.

Claims

1. A fire-resistant burn detection device, characterized in that: include: A detection box, wherein a linear moving assembly is disposed in the detection box, wherein a support portion for placing the object to be detected is disposed on the linear moving assembly, wherein a clamping assembly for clamping the object to be detected is disposed on the support portion, and wherein an axis of the support portion and an axis of the moving assembly are perpendicular to each other; A flame spraying device, which is arranged at one side of the detection box and is used to spray flames toward the test object, and the linear moving assembly is used to drive the support part away from or close to the flame spraying device; The temperature sensor assembly is arranged on the side wall of the detection box and is used to detect the surface temperature of the side of the product to be detected facing the flame spraying device and the surface temperature of the side facing away from the flame spraying device.

2. The fire-resistant burning detection equipment according to claim 1, characterized in that: The temperature sensor assembly includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged on a side plate of the detection box on a side close to the flamethrower, and the second temperature sensor is arranged on a side plate of the detection box on a side facing the injection port of the flamethrower, and the first temperature sensor, the second temperature sensor and the injection port of the flamethrower are coaxially arranged.

3. The fire-resistant burning detection equipment according to claim 2, characterized in that: Both of the temperature sensors are laser temperature sensors.

4. The fire-resistant burning detection equipment according to claim 1, characterized in that: The flame spraying device is connected to an oxygen source and a fuel gas source, wherein the fuel gas source is one or a combination of propane, acetylene, and methane.

5. The fire-resistant burning detection equipment according to claim 1, characterized in that: It also includes a smoke exhaust structure, which includes a smoke exhaust hood arranged on the top of the detection box and a smoke extractor arranged outside the detection box, and the smoke exhaust hood and the smoke extractor are connected through a smoke exhaust channel.

6. The fire-resistant burning detection equipment according to claim 1, characterized in that: The linear motion component comprises: A screw rod, a screw rod seat is slidably arranged on the screw rod, the support portion is arranged on the screw rod seat, and a driving unit is arranged at one end of the screw rod away from the flame-throwing device; Two sliding guide rails are respectively arranged on both sides of the screw rod and are arranged parallel to the screw rod. Each of the sliding guide rails is sleeved with a plurality of sliding blocks.

7. The fire-resistant burning detection equipment according to claim 6, characterized in that: The driving unit is a hand wheel or a motor.

8. The fire-resistant burning detection equipment according to claim 6, characterized in that: The support part includes a movable plate fixedly connected to the screw seat and a plurality of sliders, a lifting support rod arranged on the movable plate, and a support frame arranged on the top of the lifting support rod, wherein the mid-vertical line of the support frame is perpendicular to the water level surface.

9. The fire-resistant burning detection equipment according to claim 8, characterized in that: The clamping assembly comprises a clamp arranged on the lifting support rod and a plurality of fixing clips movably arranged on the top of the support frame.

10. The fire-resistant burning detection equipment according to claim 1, characterized in that: It also includes a laser temperature display component, which is electrically connected to the temperature sensor component.

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