Hydrogen fuel cell with protection structure
By designing the structure of protective shells, top lids, protective bases, and compressive components in hydrogen fuel cells, the problem of easy deformation of hydrogen fuel cell protective shells in existing technologies and damage to the battery stacked. Pressure and safety.
Patent Information
- Application Number
- CN202421029241.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-13
AI Technical Summary
There is a lack of effective protective measures between the existing hydrogen fuel cell protective case and the internal battery stack, which can easily cause the shell to deform during collision, damage the battery stack, and affect safe use.
A hydrogen fuel cell with a protective structure is designed, which adopts a protective shell, top cover, protective base, and compressive component. During the impact, the signal is transmitted by reinforcing rods and L -type cards.
Effectively improve the pressure of the protective shell, reduce the deformed risk caused by external collisions, and remind users to repair it in a timely manner through the pressure sensor to ensure the safe use of the battery stack.
Smart Images
Figure CN222422008U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy, in particular to a hydrogen fuel cell with a protective structure. Background Art
[0002] The core part of a hydrogen fuel cell is the battery core, also known as a battery stack. The battery core is made up of many individual fuel cell units stacked together, each of which contains an anode, a cathode, and an electrolyte layer. When hydrogen and oxygen react between the anode and the cathode, electricity and water are generated. The battery stack is usually installed in a protective shell, which protects the battery stack from being directly exposed to the outside and easily damaged by collision.
[0003] However, there is no protective measure between the existing protective shell and the internal battery stack, which may easily cause the shell to deform when hit, and easily damage the battery stack inside the shell, affecting safe use. In view of this, we propose a hydrogen fuel cell with a protective structure. Utility Model Content
[0004] The purpose of the utility model is to provide a hydrogen fuel cell with a protective structure in view of the problems existing in the background technology.
[0005] The technical solution of the utility model: a hydrogen fuel cell with a protective structure, comprising a protective shell and a battery stack, a top cover for protecting the battery stack is arranged at the top opening of the protective shell, a first screw for fixing the top cover is installed on the top cover, a protective base for supporting the battery stack is arranged in the protective shell, second screws for fixing the battery stack on the protective base are distributed on the bottom plate of the battery stack, first pressure-resistant components are symmetrically installed on the inner wall of the protective shell, and a second pressure-resistant component for cooperating with the second pressure-resistant component to reinforce the protective shell is installed between the two first pressure-resistant components.
[0006] Preferably, a first threaded hole is formed on the top wall of the protective housing, a second threaded hole is formed on the top cover, and a plurality of the first screws are respectively arranged in the first threaded hole and the second threaded hole at corresponding positions.
[0007] Preferably, a third threaded hole is provided on the top wall of the protection base, a fourth threaded hole is provided on the bottom plate of the battery stack, and a plurality of the protection bases are respectively arranged in the third and fourth threaded holes corresponding in position.
[0008] Preferably, the end of the movable rod of the second pressure-resistant component is fixedly connected to the opposite wall of the first pressure-resistant component, and the first pressure-resistant component and the second pressure-resistant component have the same structure.
[0009] Preferably, the first pressure-resistant component comprises a vertical plate, and contact pressure sensors are installed on the opposite wall bodies of two vertical plates.
[0010] Preferably, rotating shafts are welded on the opposite wall bodies of the two vertical plates, and reinforcing rods are sleeved on the outer ring surfaces of the four rotating shafts.
[0011] Preferably, the four reinforcing rods cooperate with the vertical plates to form an X-shape, and L-shaped retaining pieces are welded on the outer walls of the four reinforcing rods, and the L-shaped retaining pieces are retained on the outer surface of the contact pressure sensor.
[0012] Compared with the prior art, the utility model has the following beneficial technical effects:
[0013] The utility model achieves the purpose of strengthening the pressure resistance of the protective shell and reducing the risk of deformation caused by external collision through the arrangement of two groups of first pressure-resistant components and two groups of second pressure-resistant components. At the same time, under the setting of the rotating shaft, the reinforcing rod can rotate during the collision, and cooperate with the L-shaped clamping piece stuck on the outer wall of the contact pressure sensor so that the protective shell can send a signal to the control panel when it is deformed, thereby reminding the user that the protection of the battery stack is reduced, which is conducive to timely maintenance by the user and avoids affecting the safety during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an isometric three-dimensional structural diagram of a hydrogen fuel cell with a protective structure;
[0015] Figure 2 yes Figure 1 A schematic diagram of a front cross-sectional structure;
[0016] Figure 3 yes Figure 2 Schematic diagram of the cutaway three-dimensional structure of the first pressure-resistant component.
[0017] Figure numerals: 1. protective shell; 2. battery stack; 3. top cover; 4. first screw; 5. protective base; 6. second screw; 7. first pressure-resistant component; 71. vertical plate; 72. contact pressure sensor; 73. rotating shaft; 74. reinforcing rod; 75. L-shaped locking piece; 8. second pressure-resistant component. DETAILED DESCRIPTION
[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Example
[0020] like Figure 1-3As shown, the utility model proposes a hydrogen fuel cell with a protective structure, including a protective shell 1 and a battery stack 2, an interface is provided on the back wall of the protective shell 1, the protective shell 1 is electrically connected to the protective base 5, and the battery stack 2 and the protective base 5 are connected by electrical plugging; the protective base 5 is fixedly installed on the bottom inner wall of the protective shell 1, and the battery stack 2 is placed on the top of the protective base 5, the bottom ends of multiple second screws 6 pass through multiple fourth threaded holes opened on the bottom plate of the battery stack 2, and are set in the third threaded holes opened on the top wall of the protective base 5, so that the battery stack 2 can be fixed on the protective base 5, and the protective base 5 is used to support it and protect it at the bottom; the top cover 3 is located at the top opening of the protective shell 1 , the top opening of the protective shell 1 is sealed, so that the protective shell 1 and the top cover 3 cooperate to form a closed space, which is beneficial to protecting the battery stack 2. The bottom ends of the multiple first screws 4 pass through the multiple second threaded holes opened on the top cover 3 and are arranged in the multiple first threaded holes opened on the top wall of the protective shell 1. The top cover 3 can be fixed at the top opening of the protective shell 1 to prevent the top cover 3 from moving and affecting the sealing of the opening of the protective shell 1. When the battery stack 2 needs to be dismantled, it is necessary to unscrew the first screw 4 to release the limit on the top cover 3, and move the top cover 3 away, unscrew the second screw 6 to release the limit on the bottom plate of the battery stack 2, and the battery stack 2 in the released limit state is convenient for the user to dismantle it, which is beneficial to subsequent maintenance.
[0021] Furthermore, a first pressure-resistant component 7 is symmetrically installed on the inner wall of the protective shell 1, and a second pressure-resistant component 8 is installed between the two first pressure-resistant components 7 to facilitate the cooperation with the second pressure-resistant component 8 to reinforce the protective shell 1. The movable rod end of the second pressure-resistant component 8 is fixedly connected to the opposite wall of the first pressure-resistant component 7. The first pressure-resistant component 7 and the second pressure-resistant component 8 have the same structure. The first pressure-resistant component 7 includes a vertical plate 71, and the two vertical plates 71 are symmetrically arranged on both sides of the contact pressure sensor 72, so that the contact pressure sensor 72 is located between the two vertical plates 71, and the two side walls of the contact pressure sensor 72 are fixedly connected to the opposite wall of the two vertical plates 71; the ends of the four rotating shafts 73 are welded to the opposite wall of the two vertical plates 71, so that the two vertical plates 71 are connected; the four reinforcing rods 74 are provided with rotating holes, and the four reinforcing rods 74 are sleeved on the rotating shafts 73 at the corresponding positions through the rotating holes. The reinforcing rod 74 is assisted in rotating by the rotating shaft 73, and one end of the reinforcing rod 74 is welded to the inner wall of the protective shell 1, so that the four reinforcing rods 74 cooperate with the rotating shaft 73 to complete the support of the contact pressure sensor 72 and the vertical plate 71, and the reinforcing rods 74 and the vertical plate 71 are in an X state under the cooperation of the reinforcing rods 74 and the vertical plate 71, so as to achieve the purpose of strengthening the compressive strength of the protective shell 1 and reduce the risk of deformation of the protective shell 1 caused by external collision to prevent affecting the protection of the battery stack 2; multiple L-shaped clamping members 75 are fixedly installed at the other end of the reinforcing rod 74 and are clamped on the outer surface wall of the contact pressure sensor 72. When the protective shell 1 is deformed by impact, the L-shaped clamping member 75 can be driven by the rotation of the reinforcing rod 74 to squeeze the contact pressure sensor 72, thereby facilitating the transmission of signals to the user, so that the user can promptly discover the protection status of the battery stack 2 to avoid affecting the safe use of the battery stack 2.
[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A hydrogen fuel cell with a protective structure, comprising a protective housing (1) and a battery stack (2), characterized in that: A top cover (3) is arranged at the top opening of the protective shell (1) for protecting the battery stack (2); a first screw (4) is installed on the top cover (3) for fixing the position of the top cover (3); a protective base (5) is arranged inside the protective shell (1) for supporting the battery stack (2); second screws (6) are distributed on the bottom plate of the battery stack (2) for fixing the battery stack (2) on the protective base (5); first pressure-resistant components (7) are symmetrically installed on the inner wall of the protective shell (1); and a second pressure-resistant component (8) is installed between the two first pressure-resistant components (7) for cooperating with the second pressure-resistant component (8) to reinforce the protective shell (1).
2. A hydrogen fuel cell with a protective structure according to claim 1, characterized in that: A first threaded hole is provided on the top wall of the protective housing (1), a second threaded hole is provided on the top cover (3), and a plurality of the first screws (4) are respectively arranged in the first threaded hole and the second threaded hole at corresponding positions.
3. A hydrogen fuel cell with a protective structure according to claim 1, characterized in that: A third threaded hole is provided on the top wall of the protective base (5), a fourth threaded hole is provided on the bottom plate of the battery stack (2), and a plurality of protective bases (5) are respectively arranged in the third and fourth threaded holes at corresponding positions.
4. The hydrogen fuel cell with a protective structure according to claim 1, characterized in that: The end of the movable rod of the second pressure-resistant component (8) is fixedly connected to the opposite wall of the first pressure-resistant component (7), and the first pressure-resistant component (7) and the second pressure-resistant component (8) have the same structure.
5. The hydrogen fuel cell with a protective structure according to claim 1, characterized in that: The first pressure-resistant component (7) comprises a vertical plate (71), and contact pressure sensors (72) are mounted on the opposite wall surfaces of the two vertical plates (71).
6. A hydrogen fuel cell with a protective structure according to claim 5, characterized in that: Rotating shafts (73) are welded on the opposite wall bodies of the two vertical plates (71), and reinforcing rods (74) are sleeved on the outer ring surfaces of the four rotating shafts (73).
7. A hydrogen fuel cell with a protective structure according to claim 6, characterized in that: The four reinforcing rods (74) cooperate with the vertical plate (71) to form an X shape, and an L-shaped clamping piece (75) is welded on the outer wall of the four reinforcing rods (74), and the L-shaped clamping piece (75) is clamped on the outer surface of the contact pressure sensor (72).