Glass battery with welding-free end cover fixing structure

Abstract

The utility model discloses a glass battery with a welding-free end cover fixing structure, which comprises a glass shell, a battery cell, an end cover and a fixing piece, the glass shell is of a hollow structure and is provided with at least one opening, and a hanging lug is convexly arranged on the outer wall surface close to the opening; each opening of the glass shell is matched with one end cover, and the end covers are pressed and fixed on the openings of the glass shell through fixing pieces matched with the hanging lugs, so that a sealed cavity is formed; the battery cell is positioned in the sealed cavity; and an electrode matched with the battery cell is inserted into the end cover. Generally speaking, the welding-free end cover fixing structure simplifies the assembly process, reduces the welding steps, provides a beneficial structural basis for the production and application of the glass shell battery, and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a glass battery with a welding-free end cover fixing structure. Background Art

[0002] With the continuous development of science and technology, batteries, as an important energy storage device, have higher and higher requirements for performance and safety. Although traditional metal shell batteries meet these requirements to a certain extent, their high cost, heavy weight, poor sealing and other problems limit their application in various fields. In order to solve these problems, researchers began to explore the possibility of using glass as a battery shell.

[0003] Glass batteries refer to batteries that use glass shells instead of metal shells. Compared with metal, glass has the advantages of low cost, self-insulation, and good sealing, so it is considered to be a new material with the potential to replace metal shells. However, there are still some problems in applying glass to battery shells, the most important of which is the problem of end cap sealing.

[0004] During the production of batteries, the battery cells need to be placed in a sealed cavity. To meet production needs, the shell needs to be pre-set with an opening for the battery cells to be placed. After the battery cells are placed, the openings are sealed by the end caps. When metal is used as the battery shell, a welding device can be used to fix and seal the end caps. However, when glass is used as the battery shell, traditional welding devices cannot be used because the glass itself has insulating properties. In addition, the use of high-temperature welding devices may have adverse effects on the battery cells. For example, excessively high temperatures may cause the performance of the battery cells to deteriorate or even damage them.

[0005] Therefore, it is very important to develop a glass battery with a welding-free end cap fixing structure, which needs to ensure the sealing performance of the battery while avoiding adverse effects on the battery cell. Utility Model Content

[0006] The purpose of the present application is to overcome at least one of the shortcomings of the prior art and to provide a glass battery having an end cover fixing structure that does not require welding. The battery uses a fixing member to fix the end cover to achieve sealing, thereby meeting the application requirements of the glass battery.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a glass battery with a welding-free end cover fixing structure, comprising a glass shell, a battery cell, an end cover, and a fixing piece, wherein the glass shell is a hollow structure with at least one opening, and a hanging ear is convexly provided on the outer wall surface near the opening; each opening of the glass shell is matched with an end cover, and the end cover is pressed and fixed on the opening of the glass shell via the fixing piece matched with the hanging ear to form a sealed cavity; the battery cell is located in the sealed cavity; the end cover is provided with an electrode matched with the battery cell.

[0008] In some embodiments, a mounting position for fixing the end cap is formed on the opening end surface of the glass shell by a recess, and the stability of the position of the end cap is ensured by the mounting position.

[0009] In some embodiments, a rubber strip for sealing is provided on the mating surface between the glass housing and the end cover.

[0010] In some embodiments, the fixing member is an integrated structure, and has a hanging platform that cooperates with the hanging ear. When in cooperation, the hanging platform is used as a fixing reference to press and fix the end cover at the opening of the glass shell.

[0011] In some embodiments, the fixing member is composed of an upper part and a lower part fixed by bolts, the first part located at the upper part cooperates with the end cover, and the second part located at the lower part is sleeved outside the glass shell and cooperates with the hanging ear. When the first part and the second part are locked, the end cover is pressed and fixed at the opening of the glass shell.

[0012] In some embodiments, the hanging ear is spiral-shaped to form a thread, and the fixing piece is fixedly connected to the hanging ear via the thread.

[0013] In some embodiments, a connecting hole is provided on the hanging ear of the glass shell, and a bolt passes through the connecting hole and is connected to a fixing member, and the fixing member presses and fixes the end cover to the opening of the glass shell.

[0014] In some embodiments, there are multiple fixing members, which are used to clamp the end cap and the hanging ears of the glass shell so that the end cap is tightly pressed and fixed at the opening of the glass shell.

[0015] In some embodiments, a solder mask is also provided on the end cover.

[0016] In some embodiments, the end caps are glass end caps.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The glass battery of the present application has a welding-free end cap fixing structure, and the end cap is pressed and fixed on the opening of the glass shell through the hanging ears and fixing parts to form a sealed cavity. This design can simplify the assembly process, reduce welding steps, and improve production efficiency.

[0019] Second, in some embodiments, a mounting position for fixing the end cap is provided on the open end surface of the glass shell, and the position stability of the end cap is ensured by the mounting position. At the same time, a sealing rubber strip is provided on the mating surface of the glass shell and the end cap, which can improve the sealing performance and prevent the electrolyte inside the battery from leaking.

[0020] 3. In some embodiments, the fixing member is an integrated structure or consists of an upper and lower part fixed by bolts, and has a hanging platform or thread that matches the hanging ear. This design can provide a stable fixing force to ensure that the end cap is firmly fixed on the glass shell, increasing the structural strength and reliability of the battery.

[0021] In summary, the welding-free end cap fixing structure simplifies the assembly process, reduces the welding steps, provides a beneficial structural foundation for the production and application of glass shell batteries, and improves production efficiency.

[0022] Other features and advantages of the subject technology of the present application will be set forth in the following description, and in part will be apparent from the description, or can be learned by practicing the subject technology of the present application. The advantages of the subject technology of the present application will be realized and obtained through the structures specifically pointed out in the written description and its claims and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the first embodiment disclosed in this application.

[0024] Figure 2 It is an exploded view of the structure of the first embodiment disclosed in this application.

[0025] Figure 3 It is a structural explosion diagram of the second embodiment disclosed in this application.

[0026] Figure 4 It is a structural explosion diagram of the third embodiment disclosed in this application.

[0027] Figure 5 It is a structural explosion diagram of the fourth embodiment disclosed in this application.

[0028] Figure 6 It is a structural explosion diagram of the fifth embodiment disclosed in this application.

[0029] Figure 7 It is a structural explosion diagram of the sixth embodiment disclosed in this application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] like Figure 1and 2 As shown, this embodiment shows an exemplary structure of a glass shell battery with a square shell and a single opening. In this embodiment, the glass shell 1 has an opening 2, and the battery cell 6 enters the glass shell 1 from the opening and is sealed by the end cover 3. Specifically, the end cover 3 is pressed and fixed on the opening 2 of the glass shell 1 by the fixing member 7 to form a sealed cavity. The battery cell 6 is located in the sealed cavity, which can ensure that the battery cell 6 works in a closed and safe environment and prevent the battery cell 6 from being affected by the outside world.

[0033] In order to facilitate the installation and fixing of the end cap 3, a hanging ear 4 is convexly provided on the outer wall surface close to the opening 2. This design can make the connection between the end cap 3 and the glass housing 1 more stable, and also facilitate the subsequent assembly work.

[0034] Specifically, the opening 2 of the glass shell 1 cooperates with the end cap 3, and the end cap 3 is provided with an electrode 5 that cooperates with the battery cell. The design of the end cap 3 is mainly to ensure the safety of the battery cell 6 and prevent the battery cell 6 from being affected by the outside world. At the same time, the electrodes 5 on the end cap 3 are also an important part of the battery cell. They are connected to the positive and negative electrodes of the battery cell 6 to achieve the output of electric energy.

[0035] In this embodiment, the fixing member 7 for fixing the end cap 3 to the glass shell 1 is composed of an upper and lower part fixed by bolts, wherein the first part 8 located at the upper part cooperates with the end cap 3, and the second part 9 located at the lower part is sleeved outside the glass shell 1 and cooperates with the hanging ear 4. When the first part 8 and the second part 9 are locked, the end cap 3 is pressed and fixed at the opening 2 of the glass shell 1. Such a design can make the connection between the end cap 3 and the glass shell 1 more firm, and also facilitates the subsequent disassembly and maintenance work. In order to improve the sealing performance, a rubber strip 10 for sealing is provided on the mating surface of the glass shell 1 and the end cap 3. The rubber strip 10 has good sealing performance, which can effectively prevent the leakage of gas or liquid and ensure the working performance of the battery.

[0036] It should be noted that, in order to further ensure the stability of the position of the end cap 3, a mounting position for fixing the end cap is formed by a recess on the end surface of the opening 2 of the glass shell 1. This design can make the end cap 3 more stable during installation and prevent the battery performance from being degraded due to improper installation.

[0037] Embodiment 2:

[0038] like Figure 3 As shown, in this embodiment, a structure of a square shell glass battery is also shown, but the difference between this structure and Example 1 is that the end cover 3 and the glass shell 1 are implemented using a fixing member 7 of a different structure. Specifically, a connecting hole is provided on the hanging ear 3 of the glass shell 1, and the bolt 12 is connected to the fixing member 7 after passing through the connecting hole. The fixing member 7 presses the end cover 3 to fix it at the opening 2 of the glass shell 1.

[0039] It should be understood that the ear 4 is a part of the glass housing 1 and is usually located at the edge or corner of the housing. The shape and size of the ear 4 can be designed according to actual needs to facilitate connection with other components. The connection hole is a hole opened on the ear 4 for accommodating the bolt 12. The diameter and shape of the connection hole should match the bolt 12 to ensure that the head of the bolt 12 can pass through the connection hole smoothly. When the bolt 12 passes through the connection hole and is connected to the fixing member 7, the fixing member 7 applies a force to tightly press and fix the end cap 3 at the opening 2 of the glass housing 1. This connection method is both simple and reliable, and can effectively prevent the end cap from loosening or falling off.

[0040] Example 3:

[0041] As Figure 4 shown, this example also discloses an exemplary structure of a glass housing battery of a square shell. The difference between this example and Example 1 is that there are two fixing members 7, which fix the end cap 3 at the opening 2 of the glass housing 1 in a clamping form. Specifically, the fixing member 7 is strip-shaped and in a U-shape, pressing and fixing the end cap 3 and the ear 4 of the glass housing 1 to achieve the fixed cooperation between the two.

[0042] Example 4:

[0043] As Figure 5 shown, this example also discloses an exemplary structure of a glass housing battery of a square shell. The difference between this example and Example 3 is that the fixing member 7 is changed to one and is in a runway shape, covering the entire outer edge of the end cap 3 and the glass housing 1 to achieve a larger area of fixed cooperation.

[0044] Example 5:

[0045] As Figure 6 shown, this example discloses an exemplary structure of a cylindrical glass housing battery. Compared with Example 5, in addition to the different shapes and structures of the glass housing 1, there are also differences in the connection structure between the fixing member 7 and the glass housing 1. Specifically, the ear 4 on the glass housing 1 is spiral, which can be understood as a protruding thread. Correspondingly, the fixing member 7 is provided with a matching thread inside. When mating, the fixing member 7 and the ear are connected to each other to achieve fixation, and then the end cap 3 is pressed and fixed on the opening 2 of the glass housing 1.

[0046] Example 6:

[0047] As Figure 7 shown, this example is similar to Example 5 and also discloses an exemplary structure of a cylindrical glass housing battery. The difference between this example and Example 5 is that the ear 4 is annular, and the fixing member 7 and the ear are fixed by buckling.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A glass battery with a welding-free end cover fixing structure, characterized in that: The invention comprises a glass shell, a battery cell, an end cover and a fixing part, wherein the glass shell is a hollow structure with at least one opening, and a hanging ear is convexly provided on the outer wall surface close to the opening; each opening of the glass shell is matched with an end cover, and the end cover is pressed and fixed on the opening of the glass shell via the fixing part matched with the hanging ear to form a sealed cavity; the battery cell is located in the sealed cavity; the end cover is provided with an electrode matched with the battery cell.

2. The glass battery with a welding-free end cover fixing structure according to claim 1, characterized in that: The opening end surface of the glass shell is formed with a mounting position for fixing the end cover by means of a recess, and the stability of the position of the end cover is ensured by the mounting position.

3. The glass battery with a welding-free end cover fixing structure according to claim 1, characterized in that: The fixing piece is an integrated structure, and has a hanging platform matched with the hanging ear. When matched, the hanging platform is used as a fixing reference to press and fix the end cover at the opening of the glass shell.

4. The glass battery with a welding-free end cover fixing structure according to claim 1, characterized in that: The fixing member is composed of an upper part and a lower part fixed by bolts. The first part located at the upper part cooperates with the end cover, and the second part located at the lower part is sleeved outside the glass shell and cooperates with the hanging ear. When the first part and the second part are locked, the end cover is pressed and fixed at the opening of the glass shell.

5. The glass battery with a welding-free end cover fixing structure according to claim 1, characterized in that: The hanging ears of the glass shell are provided with connecting holes, and the bolts are connected with the fixing members after passing through the connecting holes, and the fixing members press and fix the end cover at the opening of the glass shell.

6. The glass battery with a welding-free end cover fixing structure according to claim 1, characterized in that: There are a plurality of fixing members, which are used to clamp the end cover and the hanging ears of the glass shell, so that the end cover is tightly pressed and fixed at the opening of the glass shell.

7. A glass battery with a welding-free end cover fixing structure according to claim 1 or 2, characterized in that: A rubber strip for sealing is arranged on the matching surface of the glass shell and the end cover.

8. The glass battery with a welding-free end cover fixing structure according to claim 1, characterized in that: The hanging ear is spiral-shaped to form a thread, and the fixing piece is fixedly connected to the hanging ear via the thread.

9. A glass battery with a welding-free end cover fixing structure according to any one of claims 1 to 6, characterized in that: A solder-proof valve is also provided on the end cover.

10. A glass battery with a welding-free end cover fixing structure according to any one of claims 1 to 6, characterized in that: The end cap is a glass end cap.

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