CN216749992U

CN216749992U - Solid oxide fuel cell group

Info

Publication number: CN216749992U
Application number: CN202220235441.XU
Authority: CN
Inventors: 张明; 戴煜; 张开飞; 谭泽阳
Original assignee: Edelman Zibo Hydrogen Energy Technology Co ltd
Current assignee: Edelman Zibo Hydrogen Energy Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-14
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a solid oxide fuel battery pack, which comprises a battery box and a plurality of battery modules; the top of the battery box is provided with an opening, a plurality of slots are arranged in the battery box, a battery module can be inserted into each slot, and the top of each battery module is provided with a cathode binding post and an anode binding post; the opening part lid at battery box top is equipped with the case lid, the top of case lid is equipped with cathode bus post and positive pole bus post, the downside of case lid is equipped with a plurality of cathode terminal jacks and positive pole terminal jack, all be equipped with the negative pole conducting strip of being connected with cathode bus post in each cathode terminal jack, each cathode terminal one-to-one inserts each cathode terminal jack, all be equipped with the positive pole conducting strip of being connected with positive pole bus post in each positive pole terminal jack, each positive pole terminal one-to-one inserts each positive pole terminal jack. The utility model is convenient for assembly and adjustment of the capacity of the battery pack by increasing or decreasing the battery modules.

Description

Solid oxide fuel battery pack

Technical Field

The utility model relates to the technical field of fuel cells, in particular to a solid oxide fuel cell stack.

Background

The solid oxide fuel cell is an all-solid-state chemical power generation device which can directly convert chemical energy stored in fuel and oxidant into electric energy at medium and high temperature with high efficiency and environmental friendliness, and its single cell is composed of anode, cathode and solid oxide electrolyte, the anode is the place where fuel is oxidized, the cathode is the place where oxidant is reduced, both electrodes contain catalyst for accelerating electrode electrochemical reaction, and fuel gas is continuously introduced into anode side of solid oxide fuel cell, for example: hydrogen (H2), methane (CH4), city gas, etc., and the fuel gas is adsorbed on the surface of the anode having a catalytic action and diffuses to the interface between the anode and the electrolyte through the porous structure of the anode. Oxygen or air is continuously introduced to one side of the cathode, oxygen is adsorbed on the surface of the cathode with a porous structure, due to the catalytic action of the cathode, O2 obtains electrons and is changed into O2-, under the action of chemical potential, O2-enters a solid oxygen ion conductor which plays the role of an electrolyte, diffusion is caused due to concentration gradient, the electrons finally reach the interface between the solid electrolyte and the anode and react with fuel gas, and the lost electrons return to the cathode through an external circuit.

In the actual use process, a plurality of solid oxide fuel cell modules are often connected in parallel to increase the capacity of a battery pack, the traditional assembly method is to firstly install the solid oxide fuel cell modules into a battery box, then weld a conducting strip with a cathode terminal of each solid oxide fuel cell module, and weld another conducting strip with an anode terminal of each solid oxide fuel cell module, and the defects of the traditional assembly method are that the assembly is inconvenient, the increase and decrease of the solid oxide fuel cell modules are inconvenient, and the capacity of the battery pack is inconvenient to adjust.

SUMMERY OF THE UTILITY MODEL

In view of the shortcomings of the prior art, the present invention provides a solid oxide fuel cell stack that is not only easy to assemble, but also easy to adjust the capacity of the stack by adding or subtracting cell modules.

The utility model provides a solid oxide fuel battery pack, which comprises a battery box and a plurality of battery modules arranged in the battery box;

the top of the battery box is provided with an opening, a plurality of slots extending downwards from the opening are arranged in the battery box, one battery module can be inserted into each slot, and the top of each battery module is provided with a cathode terminal and an anode terminal;

the battery box comprises a battery box body and is characterized in that a box cover is arranged at an opening at the top of the battery box body, a cathode bus post and an anode bus post are arranged at the top of the box cover, a cathode terminal jack is arranged on the lower side of the box cover corresponding to each cathode terminal, a cathode conducting strip connected with the cathode bus post is arranged in each cathode terminal jack, each cathode terminal is inserted into each cathode terminal jack in a one-to-one correspondence manner and is in conductive contact with the cathode conducting strip, an anode terminal jack is arranged on the lower side of the box cover corresponding to each anode terminal, an anode conducting strip connected with the anode bus post is arranged in each anode terminal jack, and each anode terminal is inserted into each anode terminal jack in a one-to-one correspondence manner and is in conductive contact with the anode conducting strip.

Furthermore, a first elastic piece used for tightly propping the cathode conducting strip towards the outside of the hole is arranged in each cathode terminal jack, and a second elastic piece used for tightly propping the anode conducting strip towards the outside of the hole is arranged in each anode terminal jack.

Further, the first elastic piece and the second elastic piece are springs or elastic pieces.

Further, the battery box includes rectangle frame, lower rectangle frame and connect respectively in four L shape stands between the four angles of last rectangle frame and lower rectangle frame, be equipped with the T shape stand that a plurality of intervals set up between the long limit of last rectangle frame and the long limit of lower rectangle frame, form between L shape stand and the T shape stand and between the adjacent T shape stand the slot.

Furthermore, the top of the battery box is provided with a vent.

Furthermore, connecting parts are arranged at two side ends of the box cover and fixed to the top of the end wall of the battery box through bolts.

The utility model has the beneficial effects that: when the solid oxide fuel battery pack is assembled, the battery modules are inserted into the slots in the battery box in a one-to-one correspondence mode, then the box cover is covered, the cathode binding posts of the battery modules are inserted into the cathode binding post slots in a one-to-one correspondence mode and are in conductive contact with the cathode conducting strips, the cathode binding posts of the battery modules are connected in series together and connected to the cathode bus post through the cathode conducting strips, the anode binding posts of the battery modules are inserted into the anode binding post slots in a one-to-one correspondence mode and are in conductive contact with the anode conducting strips, the anode binding posts of the battery modules are connected in series together and connected to the anode bus post through the anode conducting strips, and therefore the assembly of the battery pack is completed.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a transverse cross-sectional view of an embodiment of the present invention;

fig. 3 is a vertical cross-sectional view of an embodiment of the present invention.

In the drawing, 100-battery box; 110-an opening; 120-slot; 130-upper rectangular frame; 140-lower rectangular frame; 150-L shaped posts; 160-T shaped posts; 200-a battery module; 210-cathode terminal; 220-anode terminal; 300-case cover; 310-cathode bus bar; 320-anode bus bar; 330-cathode terminal jack; 340-a cathode conducting strip; 350-anode terminal jack; 360-an anode conducting strip; 370-a first elastic member; 380-a second elastic member; 390-vent; 3100-a connecting part; 3110-bolts.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

As shown in fig. 1 to 3, an embodiment of the present invention provides a solid oxide fuel cell stack including a cell casing 100 and a plurality of cell modules 200 mounted in the cell casing 100.

The top of the battery case 100 is provided with an opening 110, a plurality of slots 120 extending downward from the opening 110 are formed in the battery case 100, one battery module 200 can be inserted into each slot 120, and a cathode terminal 210 and an anode terminal 220 are formed at the top of each battery module 200.

The cover 300 is covered at the opening 110 at the top of the battery box 100, specifically, the cover 300 is provided with connecting portions 3100 at both side ends, and the connecting portions 3100 are fixed to the top of the end wall of the battery box 100 by bolts 3110.

The top of case lid 300 is equipped with cathode bus post 310 and anode bus post 320, the downside of case lid 300 corresponds each cathode terminal 210 and is equipped with cathode terminal jack 330, all be equipped with the cathode conducting strip 340 of being connected with cathode bus post 310 in each cathode terminal jack 330, each cathode terminal 210 one-to-one inserts each cathode terminal jack 330 and electrically conducts the contact with cathode conducting strip 340, the downside of case lid 300 corresponds each anode terminal 220 and is equipped with anode terminal jack 350, all be equipped with the anode conducting strip 360 of being connected with anode bus post 320 in each anode terminal jack 350, each anode terminal 220 one-to-one inserts each anode terminal jack 350 and electrically conducts the contact with anode conducting strip 360.

When assembling the solid oxide fuel cell stack, the cell modules 200 are inserted into the slots 120 of the cell casing 100 one by one, then the cover 300 is closed, and at this time, the cathode terminals 210 of the battery modules 200 are inserted into the cathode terminal insertion holes 330 in a one-to-one correspondence and are in conductive contact with the cathode conductive tabs 340, so that the cathode conductive sheets 340 string the cathode terminals 210 of the respective battery modules 200 together and are coupled to the cathode bus bar 310, the anode terminals 220 of the respective battery modules 200 are inserted into the anode terminal insertion holes 350 in a one-to-one correspondence and are in conductive contact with the anode conductive sheets 360, the anode conductive sheets 360 string the anode terminals 220 of the respective battery modules 200 together and are coupled to the anode bus bar 320, thereby accomplish the equipment of group battery, for prior art, this application need not the welding conducting strip when equipment battery module 200, and the equipment is convenient to be convenient for adjust the capacity of group battery through increase and decrease battery module 200.

In a preferred embodiment, a first elastic member 370 is disposed in each cathode terminal insertion hole 330 for tightly abutting against the cathode conducting strip 340, the first elastic member 370 may be a spring or a spring piece, the cathode conducting strip 340 is tightly abutted by the first elastic member 370, so as to ensure that the cathode terminal 210 inserted into the cathode terminal insertion hole 330 is in good contact with the cathode conducting strip 340, a second elastic member 380 is disposed in each anode terminal insertion hole 350 for tightly abutting against the anode conducting strip 360, the second elastic member 380 may be a spring or a spring piece, the anode conducting strip 360 is tightly abutted by the second elastic member 380, and it is ensured that the anode terminal 220 inserted into the anode terminal insertion hole 350 is in good contact with the anode conducting strip 360.

In a preferred embodiment, the battery box 100 includes an upper rectangular frame 130, a lower rectangular frame 140, and four L-shaped posts 150 connected between four corners of the upper rectangular frame 130 and the lower rectangular frame 140, respectively, a plurality of T-shaped posts 160 spaced apart from each other are disposed between the long sides of the upper rectangular frame 130 and the long sides of the lower rectangular frame 140, and slots 120 are formed between the L-shaped posts 150 and the T-shaped posts 160 and between the adjacent T-shaped posts 160. By adopting the structure of the battery box 100, the front, the back, the left, the right and the bottom of the battery box 100 have good ventilation, and the battery modules 200 are separated from each other, which is beneficial to the heat dissipation of the battery modules 200 and ensures the use safety. Preferably, the top of the battery box 100 is opened with a vent 390 to further improve the heat dissipation effect of the battery module 200.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A solid oxide fuel cell stack comprising a cell casing and a plurality of cell modules mounted in the cell casing, characterized in that:

2. The solid oxide fuel cell stack of claim 1, wherein: and a first elastic piece used for tightly propping the cathode conducting strip outwards is arranged in each cathode terminal jack, and a second elastic piece used for tightly propping the anode conducting strip outwards is arranged in each anode terminal jack.

3. The solid oxide fuel cell stack of claim 2, wherein: the first elastic piece and the second elastic piece are springs or elastic pieces.

4. The solid oxide fuel cell stack of claim 1, wherein: the battery box includes rectangle frame, lower rectangle frame and connect respectively in four L shape stands between the four angles of last rectangle frame and lower rectangle frame, go up the T shape stand that is equipped with a plurality of intervals and sets up between the long limit of rectangle frame and the long limit of lower rectangle frame, form between L shape stand and the T shape stand and between the adjacent T shape stand the slot.

5. The solid oxide fuel cell stack of claim 4, wherein: the top of the battery box is provided with a ventilation opening.

6. The solid oxide fuel cell stack of claim 1, wherein: and connecting parts are arranged at two side ends of the box cover and are fixed at the top of the end wall of the battery box through bolts.