Battery explosion-proof box for whole vehicle test of new energy vehicle

Abstract

The utility model relates to a battery explosion-proof box used for a whole vehicle test of a new energy automobile, comprising a box body which is provided with an internal space for accommodating a battery pack; the temperature monitoring system is arranged in the box body so as to monitor the temperature of the battery pack in the box body; the fire extinguishing system is arranged in the box body and is configured to inject water into the box body when the temperature rise in the box body reaches a set value; the ventilation system is arranged in the box body, is connected with the environment bin and is used for ventilation so as to ensure that the test environment temperature in the battery explosion-proof box is consistent with that in the environment bin; the multifunctional cable port is used for electrifying the battery and transmitting temperature monitoring information; and the electric control box is connected with an electric appliance on the box body through a fire-resistant cable.

Description

Technical Field

[0001] The utility model relates to the field of vehicle testing for new energy vehicles, and more specifically, to a battery explosion-proof box for vehicle testing of new energy vehicles. Background Art

[0002] At present, during the vehicle testing of new energy vehicles, the power battery is installed on the vehicle, and the battery has a risk of combustion, which will endanger the entire laboratory. The existing battery explosion-proof boxes are mainly developed for individual testing of power battery packs and cannot meet the vehicle testing requirements. Summary of the Utility Model

[0003] The utility model provides a battery explosion-proof box for vehicle testing of new energy vehicles.

[0004] The battery explosion-proof box includes:

[0005] An explosion-proof box body having an internal space for accommodating a battery pack;

[0006] A temperature monitoring system disposed on the box body to monitor the temperature of the battery pack in the box;

[0007] A fire protection system disposed on the box body and configured to inject water into the box body when the temperature rise in the box body reaches a set value;

[0008] A ventilation system disposed on the box body and connected to an environmental chamber for ventilation and air exchange to ensure that the temperature of the test environment in the battery explosion-proof box is the same as that in the environmental chamber; and

[0009] A multi-functional cable port electrically connected to the electronic components on the box body and used as an interface for connecting to an electric control box outside the box body for battery power supply and signal transmission.

[0010] In some embodiments, the temperature monitoring system includes a temperature detector disposed outside the box body and extending into the box body to monitor the temperature of the battery pack.

[0011] In some embodiments, the fire protection system includes:

[0012] A fire sprinkler system disposed on the top side inside the box body;

[0013] A fire water inlet pipe disposed outside the box body and communicated with the fire sprinkler system.

[0014] In some embodiments, the fire sprinkler system includes a plurality of water injection ports disposed on the top side inside the box body and a water injection solenoid valve disposed on the fire water inlet pipe.

[0015] In some embodiments, a drain valve is provided at the bottom of the box body.

[0016] In some embodiments, the ventilation system includes:

[0017] A fan;

[0018] An air inlet, which is provided on the first side of the box body; and

[0019] An air outlet, which is provided on the second side of the box body, and the second side is opposite to the first side;

[0020] And pneumatic butterfly valves are respectively arranged at the air inlet and the air outlet.

[0021] In some embodiments, an explosion-proof film and an exhaust pressure relief valve are provided outside the top of the box body, and an explosion-proof smoke detector is provided inside the top of the box body.

[0022] In some embodiments, an explosion-proof monitoring camera is provided inside the box body.

[0023] In some embodiments, a liquid level monitoring window is provided on one side of the box body.

[0024] In some embodiments, the electric control box is provided with an audible and visual alarm and a logic control unit. The logic control unit is configured to trigger the audible and visual alarm to alarm, shut down the ventilation system, and control the fire protection system to open the water injection valve for water injection when the temperature monitoring system monitors that the temperature rise inside the box body reaches the set value. The battery explosion-proof box of the present utility model can meet the vehicle system test under high and low temperature environments, and avoid damaging the laboratory facilities due to battery combustion.

[0025] The internal space for accommodating the battery pack in the battery explosion-proof box of the present utility model is not restricted by vehicle installation adaptation, and can be applicable to battery packs of various sizes, including new battery packs that have not been adapted for vehicle installation. Therefore, it is convenient to replace the battery pack models.

[0026] The battery explosion-proof box of the present utility model can monitor and record the battery pack information in real time during the vehicle test. When the battery pack has an abnormality, real-time shutdown control can be achieved through monitoring, and the abnormal data can be recorded.

[0027] When the battery pack in the battery explosion-proof box of the present utility model catches fire, the combustion and diffusion risks can be eliminated in time through the fire protection system and the ventilation system.

[0028] When the battery pack in the battery explosion-proof box of the present utility model explodes, its explosion-proof box body can control the explosion range within the box to ensure safety.

[0029] The following further specifically describes various aspects, features, advantages, etc. of the present utility model in conjunction with the accompanying drawings. Description of the Drawings

[0030] Figure 1It is a three-dimensional structure diagram of the battery explosion-proof box of the exemplary embodiment of the present utility model.

[0031] Figure 2 It is Figure 1 the front view of the battery explosion-proof box shown.

[0032] Figure 3 It is Figure 1 the top view of the battery explosion-proof box shown.

[0033] Figure 4 It is Figure 1 the left view of the battery explosion-proof box shown. Specific embodiments

[0034] In the following, the exemplary embodiments of the present utility model will be described in conjunction with the accompanying drawings. It should be understood that the present utility model can be embodied in various different embodiments and should not be construed as being limited to the embodiments described herein or shown in the drawings. On the contrary, these embodiments are provided only as examples to make the disclosure of the present utility model full and comprehensive, and to fully present all aspects and technical features of the present utility model to those skilled in the art. In addition, the features of each exemplary embodiment should be considered as being applicable to other embodiments or being combined with the features of other embodiments.

[0035] The terms used in the following description are for illustrative purposes only and are not intended to limit the present utility model. For example, the terms "top", "bottom", "upper", "lower", "above" and "below" can be used to refer to the directions in the reference drawings. Terms such as "front", "back", "rear", "side", "outer" and "inner" can be used to describe the orientation and / or position of the various parts of a component within the same reference system or any reference system, and the orientation and / or position can be clearly understood in combination with the description of the relevant component in the specification and the associated drawings. Such terms may include the specific terms mentioned above, their derivatives and synonyms. Similarly, unless the context clearly indicates otherwise, the terms "first", "second" and other such numerical terms referring to structures do not mean order or sequence.

[0036] It should be understood that when an element or feature is referred to as being "on another element or layer", "connected to" or "coupled to" another element or layer, it can be directly on another element or feature, connected to or coupled to another element or feature, or there may be one or more intermediate elements or features. Additionally, it should also be understood that when an element or feature is referred to as being "between" two elements or features, it can be the only element or feature between the two elements or features, or there may also be one or more intermediate elements or features.

[0037] It should also be understood that the terms "comprising", "including", "having", "provided with", etc., when used herein, specify the presence of the stated features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or their combinations.

[0038] As Figures 1 to 4 shown, an exemplary embodiment of the present utility model provides a battery explosion-proof box 100 for the overall vehicle test of new energy vehicles. The battery explosion-proof box includes a box body 101 which has an internal space for accommodating a battery pack 300. A temperature monitoring system is provided on the box body 101 for monitoring the temperature of the battery pack 300 inside the box. A fire protection system is provided on the box body 101, and the fire protection system is configured to open a fire protection valve to inject water into the box when the temperature rise inside the box reaches a set value. A ventilation system is provided on the box body 101, and the ventilation system is connected to the overall vehicle test environment chamber for ventilation and air exchange to ensure that the temperature of the battery explosion-proof box 100 is consistent with the test environment temperature in the environment chamber. A multi-functional cable port 106 is also provided on the box body 101, which is electrically connected to the electronic components on the box body and serves as an interface for connecting to an electric control box 200 outside the box body for battery power-on and signal transmission. In some embodiments, the multi-functional cable port 106 is used to transmit temperature monitoring information and other signals, such as explosion-proof smoke sensor signals, fire protection water level signals, and / or camera signals, etc. In some embodiments, the electric control box 200 is located in an operation room in a safe area and is connected to the multi-functional cable port 106 on the box body 101 through a fire-resistant cable. The electric control box 200 is configured to control the electronic components of the box body, for example, to control the operation of the electronic components of the fire protection system, ventilation system, etc. according to the temperature rise monitored by the temperature monitoring system.

[0039] In some embodiments, the electric control box 200 is equipped with an audible and visual alarm, and when the temperature rise inside the box body 101 reaches a set value (adjustable), the audible and visual alarm gives an alarm. In some embodiments, the electric control box 200 is provided with a logic control unit for effectively controlling the logical actions of the various components inside the box body 101 to ensure the safe and reliable operation of the system. The control executed by the electric control box 200 will be illustrated below.

[0040] In some embodiments, the box body 101 is configured to have the following characteristics: heat preservation: -40°C; high temperature resistance: 1500°C; load-bearing: 3000 kg. The box body 101 is configured such that when a fire breaks out inside it, it will not be burned through, will not explode / seriously deform, and the fire will not spread outward. The box body 101 has an explosion-proof door 116, and the overall clamping force of the explosion-proof door lock is 220 kN. And, through the explosion-proof door 116, it is convenient to replace the battery pack model and conduct experiments on replacing new model battery packs (not installed in the vehicle).

[0041] In some embodiments, the temperature monitoring system includes a temperature detector 105 configured outside the box body 101 and capable of extending into the box body to monitor the temperature of the battery pack. For example, the temperature detector 105 can be a thermocouple type PT-100 temperature detector, which has explosion-proof characteristics and can extend into the box to monitor the temperature of the battery pack inside the box. The measurement range of the PT-100 temperature detector is -50°C to +200°C, and the accuracy is class B. In some embodiments, when the temperature detector 105 monitors that the temperature rise inside the box reaches a set value (adjustable), the audible and visual alarm of the electric control box 200 alarms, the ventilation system stops, and the fire protection system automatically injects water into the box body.

[0042] In some embodiments, the fire protection system includes: a fire sprinkler system 108 provided on the top side inside the box body; a fire water inlet pipe 103 provided outside the box body and communicating with the fire sprinkler system 108. In some embodiments, the fire sprinkler system 108 includes a plurality of water injection ports (for example, the size of the water injection port is 1.5 inches) provided on the top side inside the box body and a water injection solenoid valve arranged on the fire water inlet pipe. The electric control box 200 is configured to open the water injection solenoid valve of the fire protection system when the temperature detector 105 monitors that the temperature rise inside the box reaches a set value, so as to automatically inject water into the box body.

[0043] In some embodiments, a liquid level monitoring window 114 is provided on one side of the box body 101, and a drain valve 111 is provided at the bottom of the box body. Thus, the water level inside the box can be grasped through the liquid level monitoring window 114, and the water can be drained by controlling the drain valve 111, thereby controlling the water level inside the box.

[0044] In some embodiments, the ventilation system includes: a fan; an air inlet 112 provided on the first side of the box body 101; and an air outlet 113 provided on the second side of the box body 101, and the second side is opposite to the first side. Pneumatic butterfly valves are respectively arranged at the air inlet 112 and the air outlet 113. Thus, the inside of the box body 101 is connected to the environmental chamber to ensure that the test environment temperature in the battery explosion-proof box 100 is the same as that in the environmental chamber, for example, both are -40°C. The electric control box 200 is configured to stop the fan, close the pneumatic butterfly valves at the air inlet and outlet (the pneumatic butterfly valves close within 1 to 2 seconds), and at the same time open the water injection solenoid valve of the fire protection system when the temperature detector 105 monitors that the temperature rise inside the box reaches a set value, so as to automatically inject water into the box body.

[0045] In some embodiments, an explosion-proof film 107 and an exhaust pressure relief valve 104 are provided outside the top of the box body 101, and an explosion-proof smoke detector 115 is provided inside the top of the box body 101. The explosion-proof film 107 is, for example, a DN400 arched explosion-proof film. When the battery pack 300 inside the box body 101 explodes, the internal pressure of the box body 101 can be effectively controlled through the explosion-proof film 107 and the exhaust pressure relief valve 104 to prevent the box body 101 from bursting. At the same time, in some embodiments, an explosion-proof monitoring camera 109 is provided inside the box body 101, which can monitor the state of the battery pack 300 in real time and can perform real-time shutdown control in case of abnormality.

[0046] In some embodiments, two multi-functional cable ports can be provided at the top end of the box body. One of them is for power supply wiring to supply power to the battery, and the other is for signal wiring for monitoring the temperature of the battery pack and optionally for transmitting explosion-proof smoke sensor signals, fire water level signals, and / or camera signals, etc.

[0047] In some embodiments, the electric control box 200 has two modes: manual and automatic. In the manual mode, the fan, pneumatic butterfly valve, water injection solenoid valve, and audible and visual alarm can be operated separately through the electric control box 200. In the automatic mode, when the temperature rise inside the test box reaches the set value, the electric control box 200 automatically triggers the audible and visual alarm to alarm, stops the fan, closes the pneumatic butterfly valve, and opens the water injection solenoid valve for water injection, so as to timely eliminate the risks of combustion and spread.

[0048] According to the above embodiments, the battery pack is stored separately in the box body 101, and corresponding monitoring and protection measures are taken through temperature detectors, explosion-proof smoke detectors, explosion-proof monitoring cameras, etc., which can ensure the normal progress of the experiment and solve the safety problems of the vehicle test laboratory. At the same time, communication is carried out with the outside through the multi-functional cable port to cooperate with external related equipment to complete the vehicle test of new energy vehicles.

[0049] The above-disclosed embodiments are only for illustrative purposes of the present invention and do not limit the scope of the rights claimed for the present invention. Those skilled in the art should understand that various equivalent changes, alterations, or modifications can be made according to the embodiments of the present invention, but the embodiments obtained through the above equivalent changes, alterations, or modifications will still fall within the protection scope defined by the claims of the present invention.

Claims

1. A battery explosion-proof box for testing new energy vehicles, characterized in that: include: An explosion-proof box having an internal space for accommodating a battery pack; A temperature monitoring system, which is arranged in the box to monitor the temperature of the battery pack in the box; A fire protection system, which is arranged in the box and configured to inject water into the box when the temperature rise in the box reaches a set value; A ventilation system, which is arranged in the box and connected to the environmental chamber, is used for ventilation to ensure that the battery explosion-proof box is at the same temperature as the test environment in the environmental chamber; and A multifunctional cable port is electrically connected to the electronic components on the box and is used as an interface for connecting to an electric control box outside the box for battery powering and signal transmission.

2. The battery explosion-proof box according to claim 1, wherein: The temperature monitoring system includes a temperature detector which is arranged outside the box and extends into the box to monitor the temperature of the battery pack.

3. The battery explosion-proof box according to claim 1, wherein: The fire protection system comprises: A fire sprinkler system, which is arranged on the top side of the interior of the box; A fire water inlet pipe is arranged outside the box and is connected to the fire sprinkler system.

4. The battery explosion-proof box according to claim 3, wherein: The fire sprinkler system comprises a plurality of water injection ports arranged on the top side of the box body and a water injection solenoid valve arranged on the fire water inlet pipe.

5. The battery explosion-proof box according to claim 3, wherein: A drain valve is arranged at the bottom of the box body.

6. The battery explosion-proof box according to claim 1, wherein: The ventilation system comprises: Fan; an air inlet, which is disposed on a first side of the box; and an air outlet, which is arranged on a second side of the box body, the second side being opposite to the first side; In addition, pneumatic butterfly valves are respectively provided at the air inlet and the air outlet.

7. The battery explosion-proof box according to claim 1, wherein: An explosion-proof disk and an exhaust pressure relief valve are provided on the top outer side of the box. An explosion-proof smoke sensor is arranged on the inner side of the top of the box body.

8. The battery explosion-proof box according to claim 1, wherein: An explosion-proof monitoring camera is arranged inside the box.

9. The battery explosion-proof box according to claim 1, wherein: A liquid level monitoring window is arranged on one side of the box body.

10. The battery explosion-proof box according to claim 1, wherein: The electric control box is equipped with an audible and visual alarm and a logic control unit. The logic control unit is configured to trigger the sound and light alarm to alarm, shut down the ventilation system, and control the fire protection system to open water injection when the temperature rise inside the box monitored by the temperature monitoring system reaches a set value.

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