Active safety device for hydrogen fuel cell automobile collision

Abstract

The utility model belongs to the technical field of safety of hydrogen fuel cell automobiles, and particularly relates to an active safety device for collision of a hydrogen fuel cell automobile, which comprises a launching mechanism, a driving mechanism, a driving mechanism and a driving mechanism, the control mechanism comprises a control unit, a first transmission unit, a second transmission unit and a collision sensing unit, and the first transmission unit, the second transmission unit and the collision sensing unit are electrically connected with the control unit. According to the utility model, the launching mechanism, the control mechanism and the connecting mechanism are matched with one another, so that when the hydrogen fuel cell automobile is collided, the control mechanism can drive the connecting mechanism to move so as to relieve the limitation on the hydrogen storage tank in the launching mechanism, so that the hydrogen storage tank is popped up through the reset of a compressed elastic element in the launching mechanism; therefore, the damage of the hydrogen storage tank caused by collision and the large potential safety hazard are prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen fuel cell car safety technical field, specifically relates to a kind of active safety device for hydrogen fuel cell car collision. BACKGROUND

[0002] Fuel cell car has become the focus of the research and development of automobile industry, and most of the domestic and foreign large-scale automobile enterprises are developing fuel cars, and even some enterprises have produced relevant models for many years, but since the main energy of fuel cell car is hydrogen, its safety is of great concern, and the safety of fuel cell car after collision accident is the focus of attention. Fuel cell car uses clean energy hydrogen as energy source, which can be called zero pollution. Hydrogen energy has high energy density, and hydrogen energy filling for a short time can realize more than 600km long endurance. At present, it is still the focus of the industry.

[0003] But due to the instability of hydrogen energy itself, the safety of fuel cell car is also highly valued and concerned, especially the safety of personnel after collision accident.

[0004] Based on this, the present application provides a kind of active safety device for hydrogen fuel cell car collision, which can eliminate the drawbacks of existing devices. INVENTION CONTENTS

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an active safety device for hydrogen fuel cell car collision, comprising:

[0006] The launching mechanism includes a launching chamber for loading a hydrogen storage tank, and an elastic element axially arranged inside the launching chamber and can be sleeved around the hydrogen storage tank;

[0007] The control mechanism includes a control unit, a transmission unit one, a transmission unit two and a collision sensing unit electrically connected to the control unit, and

[0008] The connecting mechanism includes a limiting bolt connected with the transmission unit two to limit the movement of the hydrogen storage tank, a high-pressure quick connector two for detachable connection with the high-pressure quick connector one at the bottom of the hydrogen storage tank, and a connecting piece one end of which is connected with the transmission unit one and the other end of which is connected with the outer ring of the high-pressure quick connector two.

[0009] As a preferred active safety device for hydrogen fuel cell car collision of the utility model, a through hole for limiting bolt insertion is radially formed on the periphery of the launching chamber.

[0010] As a kind of active safety device for hydrogen fuel cell vehicle collision of the utility model preferably, transmission unit one and transmission unit two all include circumferential driving part, and the transmission gear of axially connected in the movable end of circumferential driving part, the transmission gear on transmission unit one and transmission unit two respectively with connecting piece and limit bolt meshing.

[0011] As a kind of active safety device for hydrogen fuel cell vehicle collision of the utility model preferably, the launching chamber is hollow tubular structure with clamping groove inside, and the elastic element is axially sleeved in clamping groove.

[0012] As a kind of active safety device for hydrogen fuel cell vehicle collision of the utility model preferably, the hydrogen storage tank includes tank body and the hydrogen storage tank support arranged on the periphery of the tank body.

[0013] As a kind of active safety device for hydrogen fuel cell vehicle collision of the utility model preferably, the surface of the hydrogen storage tank support is also provided with limit slot matched with the limit bolt.

[0014] As a kind of active safety device for hydrogen fuel cell vehicle collision of the utility model preferably, the top of the tank body is connected with wireless control pressure relief valve connected with the control unit protocol, and the outside of the tank body is also wrapped with protection air bag.

[0015] Compared with prior art, the utility model has the beneficial effects that:

[0016] 1. The utility model discloses a kind of active safety device for hydrogen fuel cell vehicle collision, which is characterized by: the launching mechanism, the control mechanism and the connecting mechanism are cooperated with each other, so that when hydrogen fuel cell vehicle collides, the control mechanism can drive the connecting mechanism to move, to release the restriction to the hydrogen storage tank in the launching mechanism, so that the hydrogen storage tank is ejected by the reset of the compressed elastic element in the launching mechanism, to prevent the damage of hydrogen storage tank caused by collision and produce greater security risk.

[0017] 2. The utility model discloses a kind of active safety device for hydrogen fuel cell vehicle collision, which is characterized by: the outside of the hydrogen storage tank is wrapped with protection air bag, and wireless control pressure relief valve connected with the control unit protocol is arranged at the end of the hydrogen storage tank, so that when the hydrogen storage tank is ejected, the control unit can control wireless control pressure relief valve to open pressure relief, to fill protection air bag, so that when the hydrogen storage tank falls, the hydrogen storage tank is buffered by protection air bag, to further reduce the damage of hydrogen storage tank, improve security. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the utility model, and constitute part of the specification, and be used to explain the utility model together with embodiments of the utility model, and do not constitute limitation to the utility model.In the drawings:

[0019] Figure 1It is a schematic diagram of the principle structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the launching chamber structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the hydrogen storage tank structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the hydrogen storage tank support overhead structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the utility model when the hydrogen storage tank is ejected from the vehicle.

[0024] In the drawing: 11, launching chamber; 111, through hole; 12, elastic element; 13, tank body; 14, hydrogen storage tank support; 141, limiting groove; 15, wireless control pressure relief valve; 16, protection air bag; 21, collision sensing unit; 22, control unit; 23, transmission unit one; 24, transmission unit two; 31, high-pressure quick connector one; 32, high-pressure quick connector two; 33, connecting piece; 41, limiting bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The utility model relates to a kind of active safety devices for hydrogen fuel cell vehicle collision, as shown in Figure 1 It includes hydrogen storage tank, launching mechanism for launching hydrogen storage tank, control mechanism for controlling launching mechanism to launch hydrogen storage tank, and connecting mechanism connected between launching mechanism and control mechanism for connection and cooperation.

[0027] As shown in Figure 3 The hydrogen storage tank includes tank body 13, hydrogen storage tank support 14 arranged on the side of tank body 13, and high-pressure quick connector one 31 connected to the bottom of tank body 13. The launching mechanism includes launching chamber 11 for loading hydrogen storage tank, and elastic element 12 axially arranged inside launching chamber 11 and can be sleeved on the side of hydrogen storage tank. As an example, as shown in Figure 2 The launching chamber 11 is a hollow tubular structure with a clamping groove inside, in which the spring is axially sleeved in the clamping groove, the tank body 13 is inserted into the axial space in the center of the spring, and can be axially arranged on the spring through the hydrogen storage tank support 14.

[0028] The control mechanism comprises a control unit 22, a transmission unit 1 23, a transmission unit 2 24 and a collision sensor unit 21 electrically connected to the control unit 22.

[0029] Specifically, the transmission unit 1 23 and the transmission unit 2 24 each comprise a circumferential drive electrically connected to the control unit 22 and a transmission gear connected to the active end of the circumferential drive in the axial direction. As an example, the control unit 22 is a PLC programmable logic controller, the collision sensor unit 21 is a collision sensor commonly used in automobile airbags, and the circumferential drive is a motor. When the collision sensor senses a collision, the PLC programmable logic controller can control the motor to operate respectively to drive the transmission gear to rotate.

[0030] The connecting mechanism comprises a limiting pin 41 meshing with the transmission gear in the transmission unit 2 24 to limit the movement of the hydrogen storage tank, a high-pressure quick connector 2 32 for detachable connection with the high-pressure quick connector 1 31 at the bottom of the hydrogen storage tank, and a connecting piece 33 having one end meshing with the transmission gear in the transmission unit 1 23 and the other end fixedly connected with the outer ring of the high-pressure quick connector 2 32. The other end of the high-pressure quick connector 2 32 away from the high-pressure quick connector 1 31 is used for connection with the hydrogen delivery pipeline. In this embodiment, the high-pressure quick connector 2 32 and the high-pressure quick connector 1 31 are commonly used quick connector female and quick connector male on the market, for example, the quick connector produced by JPE brand.

[0031] Specifically, the circumferential side of the launching chamber 11 is provided with a through hole 111 arranged in the radial direction, which is used for the insertion of the limiting pin 41. In use, the limiting pin 41 is meshed with the transmission gear in the transmission unit 2 24, and can be driven to slide in the through hole 111 by the rotation of the transmission gear, so as to extend into or out of the launching chamber 11. The connecting piece 33 is meshed with the transmission gear in the transmission unit 1 23, and can drive the outer ring of the high-pressure quick connector 2 32 to move axially by the rotation of the transmission gear, so as to disconnect the high-pressure quick connector 2 32 from the high-pressure quick connector 1 31.

[0032] Specifically, as shown in Figure 5 the tank body 13 is inserted into the launching chamber 11 and placed on the spring, and then the tank body 13 is axially pressed. With the cooperation of the hydrogen storage tank support 14, the spring can be further compressed. At this time, the high-pressure quick connector 1 31 at the bottom of the tank body 13 extends out of the bottom of the launching chamber 11 and is connected with the high-pressure quick connector 2 32 to form a communication, and the motor in the transmission unit 2 24 is controlled by the PLC programmable logic controller to rotate, so that the transmission gear drives the limiting pin 41 to extend radially into the launching chamber 11 and be located on the top surface of the hydrogen storage tank support 14, thereby effectively limiting the axial reset of the spring, and finally fixing the tank body 13 in the launching chamber 11.

[0033] When the collision occurs, the collision sensor transmits a signal to the PLC programmable logic controller, the PLC programmable logic controller controls the motor in the transmission unit 23 and the transmission unit 24 to rotate, so that the two groups of transmission teeth drive the limiting bolt 41 and the connecting piece 33 to move, at this time, the limiting bolt 41 and the connecting piece 33 respectively release the axial restriction of the tank body 13 and the connection between the high-pressure quick connector 31 and the high-pressure quick connector 32, so that the hydrogen storage tank is ejected from the launch chamber 11 under the reset potential of the spring, to prevent the damage of the hydrogen storage tank caused by the collision and produce greater security risks.

[0034] Further, as shown in Figure 4 In order to prevent the tank body 13 from moving in the launch chamber 11, a limiting groove 141 is formed on the surface of the hydrogen storage tank support 14, which is matched with the limiting bolt 41, when the limiting bolt 41 extends into the launch chamber 11, it can be inserted into the limiting groove 141, so that the relative rotation of the tank body 13 in the launch chamber 11 caused by the vibration of the vehicle running can be effectively limited.

[0035] Further, as shown in Figure 3 In order to form a buffer when the hydrogen storage tank is ejected and falls to the ground, a wireless control pressure relief valve 15 connected with the control unit 22 is communicated with the top of the tank body 13, and the tank body 13 is further wrapped with a protective airbag 16; when the tank body 13 is ejected from the launch chamber 11, the control unit 22 can control the wireless control pressure relief valve 15 to open, so that the hydrogen in the tank body 13 can be filled into the protective airbag 16 to form an air cushion, when the tank body 13 falls, the air cushion can be formed to produce a buffer, so as to further reduce the damage to the tank body 13 and improve the safety.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An active safety device for hydrogen fuel cell vehicle collision, characterized by, The application relates to a hydrogen storage tank launching device. The device comprises a launching mechanism, a control mechanism and a connecting mechanism. The launching mechanism comprises a launching bin (11) for loading a hydrogen storage tank and an elastic element (12) axially arranged inside the launching bin (11) and sleeved on the lateral side of the hydrogen storage tank. The control mechanism comprises a control unit (22), a transmission unit I (23), a transmission unit II (24) and a collision sensing unit (21) electrically connected with the control unit (22) respectively.

2. The active safety device for crash of hydrogen fuel cell vehicle according to claim 1, wherein: The connecting mechanism comprises a limiting bolt (41) connected with the transmission unit II (24) to limit the movement of the hydrogen storage tank, a high-pressure quick connector II (32) used for detachable connection with a high-pressure quick connector I (31) at the bottom of the hydrogen storage tank, and a connecting piece (33) having one end connected with the transmission unit I (23) and the other end connected with the outer ring of the high-pressure quick connector II (32).

3. The active safety device for crash of hydrogen fuel cell vehicles as claimed in claim 1, wherein: The lateral side of the launching bin (11) is radially provided with a through hole (111) for inserting the limiting bolt (41).

4. The active safety device for crash of hydrogen fuel cell vehicles as claimed in claim 1, wherein: The transmission unit I (23) and the transmission unit II (24) both comprise a circumferential driving element and a transmission gear axially connected with the movable end of the circumferential driving element, and the transmission gears on the transmission unit I (23) and the transmission unit II (24) are engaged with the connecting piece (33) and the limiting bolt (41) respectively.

5. The active safety device for crash of hydrogen fuel cell vehicles according to any one of claims 1 to 4, characterized by: The launching bin (11) is a hollow tubular structure with a clamping groove inside, and the elastic element (12) is axially sleeved in the clamping groove.

6. The active safety device for crash of hydrogen fuel cell vehicle of claim 5, wherein: The hydrogen storage tank comprises a tank body (13) and a hydrogen storage tank support (14) arranged on the lateral side of the tank body (13).

7. The active safety device for crash of hydrogen fuel cell vehicle according to claim 6, wherein: The surface of the hydrogen storage tank support (14) is further provided with a limiting groove (141) matched with the limiting bolt (41). The top of the tank body (13) is connected with a wireless control pressure relief valve (15) connected with the control unit (22) in a protocol mode, and the outside of the tank body (13) is further wrapped with a protection air bag (16).

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