Small hydrogen generation device and battery system thereof

Abstract

The invention relates to a small hydrogen generation device and a battery system thereof, and belongs to the field of hydrogen generation devices. A reaction chamber, a lithium hydride placing disc and a lithium hydride pressing block; the reaction chamber is used for accommodating water and lithium hydride, is provided with a through hole for feeding a lithium hydride pressing block, is provided with a water inlet / outlet plug and an air outlet pagoda joint, and is hermetically connected with the upper cover through a sealing ring and a screw; the lithium hydride placing disc is composed of an upper placing disc, a lower placing disc and a PVC bubble cap shell clamped between the upper placing disc and the lower placing disc, and the lithium hydride placing disc is driven by a stepping motor to rotate, so that the lithium hydride pressing block is moved to the position of the lower pressing block. By adopting the closed reaction chamber and the lithium hydride pressing block sealed by the aluminum foil, hydrogen leakage is effectively prevented, and the safety is improved; stepping motor driving is automatically controlled, on-demand hydrogen production is achieved, and operation is easy, convenient and efficient.

Description

Technical Field

[0001] The invention belongs to the field of hydrogen generating devices, and in particular relates to a small hydrogen generating device and a battery system thereof. Background Art

[0002] As a clean and efficient energy source, hydrogen has broad application prospects, especially in the field of fuel cells. Traditional proton exchange membrane fuel cells mainly rely on hydrogen tanks as a source of hydrogen, but hydrogen tanks are large in size and heavy in weight, which not only affects portability, but also poses certain safety hazards during storage, transportation and use. With the increasing demand for portable energy devices, on-demand hydrogen production has become a more flexible and convenient way to supply hydrogen. The technology of generating hydrogen through chemical reactions, especially the hydrolysis reaction of lithium hydride and water, has become an important choice for portable hydrogen production devices due to its high efficiency and simple reaction.

[0003] Currently, most of the hydrogen generators on the market are large in size and complex in structure, making them difficult to meet the needs of portable devices. Especially in scenarios such as outdoor emergency power supply and mobile equipment energy supply, the size, weight and ease of operation of hydrogen generators are more stringent.

[0004] Based on the above problems, the present invention proposes a small hydrogen generation device and a battery system thereof. Summary of the invention

[0005] The object of the present invention is to provide a small-sized hydrogen generating device and a battery system thereof, so as to reduce the installation volume of the hydrogen generating device.

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

[0007] A small hydrogen generating device, comprising: a reaction chamber, a lithium hydride placement plate and a lithium hydride block;

[0008] The reaction chamber is used to contain water and lithium hydride, and is provided with a through hole for the lithium hydride block to be put in. The reaction chamber is provided with water inlet and outlet plugs and an air outlet pagoda joint. The reaction chamber is sealed and connected to the upper cover through a sealing ring and screws;

[0009] The lithium hydride placement tray is composed of an upper placement tray, a lower placement tray and a PVC bubble shell sandwiched therebetween. The lithium hydride placement tray is driven to rotate by a stepping motor to move the lithium hydride pressing block to the lower pressing block position.

[0010] On the other hand, a battery system is provided, comprising a hydrogen fuel cell unit, wherein the system comprises the small-sized hydrogen generating device described above.

[0011] Beneficial effects:

[0012] The present invention adopts a closed reaction chamber and a lithium hydride block sealed with aluminum foil to effectively prevent hydrogen leakage and improve safety; the stepper motor drives the automatic control to achieve on-demand hydrogen production, which is simple and efficient to operate;

[0013] The present application flexibly controls the hydrogen production rate by adjusting the lithium hydride placement plate and the stepper motor speed to meet the needs of different occasions.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the lithium hydride bubble shell of the present invention.

[0018] Among them, in the figure: 1-upper cover; 2-reaction chamber fixing screw; 3-linear bearing seat fixing screw; 4-linear bearing seat; 5-motor fixing frame; 6-linear bearing seat fixing nut; 7-lower pressure block fixing frame; 8-flange nut screw; 9-flange nut; 10-guide block; 11-second flange nut screw; 12-DC reduction motor screw; 13-motor fixing frame fixing screw; 14-DC reduction motor; 15-mounting plate; 16-sealing ring; 17-motor fixing frame fixing nut; 18-reaction chamber ; 19-air outlet pagoda connector; 20-lower pressure block fixing nut; 21-lower pressure block; 22-upper placement plate; 23-lithium hydride PVC bubble shell; 24-flange coupling screw; 25-lower placement plate; 26-placement plate chuck; 27-flange coupling; 28-mounting plate fixing screw; 29-flange coupling nut; 30-stepping motor fixing screw; 31-pressing guide sleeve; 32-stepping motor; 33-water inlet and outlet plugs; 34-PVC bubble shell; 35-lithium hydride; 36-easy to puncture aluminum foil. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] A small hydrogen generating device is provided for preparing hydrogen by controlling the reaction between lithium hydride and water. The device comprises a reaction chamber 18, a lithium hydride placement plate, a DC reduction motor 14, a stepping motor 32 and a lithium hydride pressing block 35 thereof;

[0021] The reaction chamber 18 is used to contain water and lithium hydride, and is provided with a through hole for the lithium hydride block 35 to be put in, the through hole is concentric with the lower block 21, the reaction chamber 18 is provided with a water inlet and outlet plug 33 and a gas outlet pagoda joint 19, and the reaction chamber 18 is sealed and connected to the upper cover 1 through a sealing ring 16 and a screw 2. The reaction chamber is effectively prevented from leaking hydrogen through a tightly closed design, ensuring the safety of operation.

[0022] A lithium hydride placement tray is used to store lithium hydride compacts 35. The lithium hydride placement tray consists of an upper placement tray 22, a lower placement tray 25 and a PVC bubble shell 34 sandwiched between the two. The placement tray is clamped on a placement tray chuck 26. The placement tray chuck 26 is mounted on a flange coupling 27 using screws 24 and nuts 29. The flange coupling 27 is mounted on the shaft of a stepper motor 32. The DC reduction motor 14 is mounted on a motor bracket 5 using a second flange nut screw 11. The stepper motor 32 is fixed to a mounting plate 15 using screws 30. The motor bracket 5 is fixed to the mounting plate 15 using screws 13 and nuts 17. The mounting plate 15 is fixed to a reaction chamber 18 using screws 28.

[0023] The stepper motor 32 is used to drive the lithium hydride placement plate to rotate, so that the lithium hydride pressing block 35 moves to the bottom of the tablet pressing device.

[0024] When in use, the lithium hydride block 35 is pressed into a block and encapsulated in a PVC blister shell 34. The blister shell 34 is heat-pressed and sealed by an easily punctured aluminum foil 36. The lithium hydride placement plate is driven to rotate by a stepper motor 32, driving the blister shell 34 to reach the position of the lower pressing block 21. The lower pressing block 21 applies pressure to squeeze the aluminum foil 36 to make the lithium hydride block fall into the reaction chamber 18 to react with water to produce hydrogen.

[0025] The pressing block 21 is driven by the DC reduction motor 14 to deform the blister shell 34 and pierce the aluminum foil 36 .

[0026] The DC reduction motor 14 is used to drive the lower pressure block to extrude lithium hydride. The guide block 10 is installed on the output shaft of the DC reduction motor 14 through the flange nut 8 and the nut 12; the lower pressure block bracket 7 is installed on the output shaft of the DC reduction motor 14 through the flange nut 9, and the lower pressure block 21 is installed on the lower pressure block bracket 7 and installed by screws.

[0027] Further, the device includes a linear bearing seat 4 and a pressing sheet guide sleeve 31;

[0028] The linear bearing seat 4 is mounted on the motor fixing frame 5 by means of screws 3 and nuts 6. The linear bearing seat 4 is used to support and guide the linear motion of the pressing block 21, thereby effectively reducing the friction and deviation generated during operation and ensuring the stability and efficiency of the tablet pressing process.

[0029] The motor fixing bracket 5 is fixedly mounted on the side wall of the inner cavity of the upper cover 1 by means of bolts.

[0030] The tablet pressing guide sleeve 31 is mounted on the mounting plate 15 and is provided with a guide chamfer. The vertical movement of the lower pressing block 21 is further guided to ensure that it maintains accurate up and down movement when pressure is applied. The guide sleeve provides additional positioning support for the lower pressing block 21 to prevent lateral deviation when the lithium hydride pressing block 34 is squeezed.

[0031] Furthermore, the device also includes a guide block 10 for limiting the rotation of the flange nut 9 to ensure the stable movement of the pressing block 21 .

[0032] The rotation speed of the lithium hydride placement plate can be adjusted by the rotation speed of the stepper motor 32 to control the hydrogen production speed.

[0033] In some disclosures, the operation process of a small hydrogen generation device described in this embodiment is as follows:

[0034] S1: The stepping motor 32 drives the lithium hydride placement plate to rotate, and the bubble shell 34 moves to the bottom of the lower pressing block 21;

[0035] S2: The pressing block 21 applies downward pressure to squeeze the bubble shell 34 to deform it, and the lithium hydride block 35 pierces the aluminum foil 36 and falls into the water to react and generate hydrogen;

[0036] S3: Repeat the above process until the lithium hydride blocks are consumed.

[0037] In this embodiment, different sizes of pressing blocks and placement plates are used to make hydrogen generating devices with different supply times.

[0038] In this embodiment, different hydrogen production speeds can be controlled by adjusting the rotation speed of the stepper motor 32 .

[0039] The present invention provides a small hydrogen generating device. Lithium hydride that consumes only water and does not use a catalyst is used in a small hydrogen production device. The lithium hydride sealed with a bubble shell 34 and an easily punctured aluminum foil 36 is easy to carry, which can improve the availability of small portable hydrogen energy and replace heavier hydrogen tanks.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A small hydrogen generating device, characterized in that: The device comprises: a reaction chamber, a lithium hydride placement plate and a lithium hydride compact; The reaction chamber is used to contain water and lithium hydride, and is provided with a through hole for the lithium hydride block to be put in. The reaction chamber is sealed and connected to the upper cover by screws; The lithium hydride placement tray is composed of an upper placement tray, a lower placement tray and a PVC bubble shell sandwiched therebetween. The lithium hydride placement tray is driven to rotate by a stepping motor to move the lithium hydride pressing block to the lower pressing block position.

2. A small hydrogen generating device according to claim 1, characterized in that: The lithium hydride compact is pressed into a block shape and packaged in a PVC blister shell, and the blister shell is heat-pressed and sealed by an easily puncturable aluminum foil.

3. A small hydrogen generating device according to claim 1, characterized in that: The lower pressing block is driven by a DC reduction motor to apply pressure to the lithium hydride pressing block for extrusion, and the DC reduction motor is fixed to the motor fixing frame by screws.

4. A small hydrogen generating device according to claim 1, characterized in that: The device comprises a tablet pressing guide sleeve which is mounted on a through hole in the reaction chamber for inputting lithium hydride pressed blocks.

5. A small hydrogen generating device according to claim 1, characterized in that: The lithium hydride placement plate is driven to rotate by a stepper motor, the stepper motor is fixed to a mounting plate by screws, and the mounting plate is fixed to a reaction chamber by screws.

6. A small hydrogen generating device according to claim 1, characterized in that: The upper placement plate and the lower placement plate of the lithium hydride placement plate are connected through a flange coupling, and the flange coupling is fixed on the stepper motor shaft through screws and nuts.

7. A small hydrogen generating device according to claim 6, characterized in that: The size of the lithium hydride placement plate is adjustable.

8. A small hydrogen generating device according to claim 1, characterized in that: A sealing ring is arranged between the reaction chamber and the upper cover through screws.

9. A battery system comprising a hydrogen fuel cell unit, characterized in that: The system comprises the small-scale hydrogen generation device according to any one of claims 1-8.

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