Colloid valve control type storage battery with isolation cover

Abstract

The utility model discloses a colloid valve control type storage battery with an isolation cover, and belongs to the technical field of storage batteries. According to the technical scheme, the battery comprises a battery shell, a pole group, a gel electrolyte, an electrolyte isolation hood and an acid mist isolation hood, an internal thread is designed at the lower part of the liquid injection opening; the pole group is formed by alternately arranging a plurality of pole plates and separating the pole plates by partition plates, and a pole column and a busbar are arranged on the pole group; the electrolyte isolation cover comprises an isolation plate and a support, the length and the width of the isolation plate are respectively matched with the length and the width of the pole group, a through hole I is formed in the isolation plate, the position of the through hole I corresponds to the position of a pole on the pole group, and the diameter of the through hole I is matched with the diameter of the pole; according to the utility model, by introducing the electrolyte isolation cover and the acid mist isolation cover, the gel electrolyte is effectively isolated from the external environment, and the electrolyte is prevented from leaking and the acid mist is prevented from escaping, so that the safety and the stability of the storage battery are remarkably improved, and the potential harm to the environment and a human body is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage batteries, and in particular relates to a colloid valve-regulated storage battery with an isolation cover. Background Art

[0002] With the rapid development of power and communications technologies, valve-regulated batteries (VRBs) have become indispensable energy storage components in these fields due to their unique advantages, such as requiring no frequent watering and maintenance and being able to be installed horizontally. Gel-valve-regulated batteries, in particular, utilize a "quasi-flooded" design, significantly improving energy density, cycle life, and safety compared to traditional lean-liquid VRBs. Consequently, they are widely used in power stations, communications base stations, and other locations.

[0003] However, in practice, colloidal valve-regulated batteries are often installed in horizontal layers to save valuable space and facilitate subsequent installation and maintenance. However, this installation method also introduces new problems. When the battery transitions from an upright position to a horizontal position, gravity forces the colloidal electrolyte in the upper electrode group to accumulate at the battery port, forming an accumulation. This accumulation can not only clog the safety valve and affect the battery's automatic venting function under abnormal conditions (such as overcharging or overheating), thereby increasing the risk of explosion or leakage, but can also partially or completely expose the busbars at the top of the battery, depriving them of the protective and insulating properties of the colloidal electrolyte, further reducing the battery's service life and safety. The battery charging process generates a certain amount of heat, which, especially under high summer temperatures, cannot be dissipated quickly. This increases the battery's water loss rate, accelerates grid corrosion, and shortens the battery's service life.

[0004] Furthermore, during the charging process of valve-regulated batteries, especially during rapid charging or after deep discharge, gases and a small amount of acid mist are generated inside the battery. The release of these gases and acid mist not only pollutes the environment but also affects the reliability and safety of the battery. Utility Model Content

[0005] The utility model provides a colloidal valve-regulated battery with an isolation cover, which is aimed at colloidal valve-regulated batteries installed horizontally, and effectively solves problems such as electrolyte accumulation, safety valve blockage, bus exposure, and gas acid mist emission, thereby improving the overall performance, service life and safety of the battery.

[0006] The technical solution of the utility model is:

[0007] A colloidal valve-regulated battery with an isolation cover comprises a battery casing, a pole group, a colloidal electrolyte, an electrolyte isolation cover and an acid mist isolation cover; a liquid injection port is provided on the battery casing, and an internal thread is designed at the lower part of the liquid injection port; the pole group, colloidal electrolyte, electrolyte isolation cover and acid mist isolation cover are all placed in the battery casing; a safety valve is provided on the top of the battery casing, and the top of the safety valve extends above the top of the battery casing; the pole group is composed of a plurality of pole plates arranged alternately and separated by a partition, and poles and bus bars are provided on the pole group; the electrolyte isolation cover comprises an isolation plate and a support, and the length and width of the isolation plate are respectively adapted to the length and width of the pole group, and a There is a through hole 1, the position of the through hole 1 corresponds to the position of the pole on the pole group, and the diameter of the through hole 1 is adapted to the diameter of the pole; a plurality of through holes 2 are also provided on the electrolyte isolation cover, which are supported at the bottom of the isolation plate; the electrolyte isolation cover is installed on the upper part of the pole group, the through hole 1 on the isolation plate passes through the pole, and the support is located on the busbar on the pole group, and a sealing ring is provided on the pole; the acid mist isolation cover includes a cover body and a glass fiber cotton layer, the cover body is a cylindrical structure with an open upper end, the outer wall of the acid mist isolation cover is provided with an external thread, the external thread is adapted to the internal thread at the lower part of the liquid injection port and is installed at the lower part of the liquid injection port of the battery shell, and an exhaust hole is provided at the bottom of the acid mist isolation cover.

[0008] Preferably, the size of the second through hole is 3-5 mm.

[0009] Preferably, the support has a height of 5-10 mm and a width of 10-15 mm.

[0010] Preferably, the thickness of the isolation plate is 2-5 mm.

[0011] Preferably, the electrolyte isolation cover and the acid mist isolation cover are made of polyethylene plastic.

[0012] Preferably, the inner diameter of the sealing ring is smaller than the diameter of the pole.

[0013] Preferably, heat pipes are provided around the battery housing, and the heat pipes are filled with water as a heat conducting medium.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The colloidal valve-regulated battery provided by the utility model effectively solves the problem of colloidal electrolyte accumulating at the liquid filling port and blocking the safety valve during installation and transportation of existing colloidal batteries in a horizontal state, causing battery failure. It also ensures effective protection of the busbar when used in a horizontal position, improving the safety of the battery pack; and solves the problem of acid mist precipitation during battery charging.

[0016] 2. The utility model sets a heat pipe outside the battery shell, which can quickly conduct the heat generated by the battery to the heat sink and dissipate the heat through air convection, thereby increasing the heat dissipation efficiency and extending the service life of the battery.

[0017] 3. The utility model effectively isolates the colloidal electrolyte from the external environment by introducing the electrolyte isolation cover and the acid mist isolation cover, preventing electrolyte leakage and acid mist escape, thereby significantly improving the safety and stability of the battery and reducing potential harm to the environment and human body.

[0018] 4. The design of the electrolyte isolation cover and the acid mist isolation cover of the utility model fully considers the convenience of installation. They can be easily installed in place through threaded connection. At the same time, the support design enables the electrolyte isolation cover to be firmly installed on the upper part of the pole group without affecting the compactness of the internal structure of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the colloidal valve-regulated battery of the utility model.

[0020] Figure 2 It is a side view of the colloidal valve-regulated battery of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the acid mist isolation cover of the utility model.

[0022] Figure 4 It is a front view of the electrolyte isolation cover of the utility model.

[0023] Figure 5 It is a top view of the electrolyte isolation cover of the utility model.

[0024] Figure 6 This is the main view of the electrolyte isolation cover on the pole group of the utility model.

[0025] Figure 7 It is a top view of the electrolyte isolation cover on the electrode group of the utility model.

[0026] In the figure, 1. battery casing; 2. pole group; 201. pole; 202. busbar; 3. colloidal electrolyte; 4. electrolyte isolation cover; 401. isolation plate; 4011. through hole 1; 402. support; 4012. through hole 2; 5. acid mist isolation cover; 501. cover body; 502. glass fiber cotton layer; 6. liquid filling port; 7. safety valve; 8. sealing ring. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1-7 As shown, this embodiment provides a colloidal valve-regulated battery with an isolation cover, comprising a battery housing 1, a pole group 2, a colloidal electrolyte 3, an electrolyte isolation cover 4 and an acid mist isolation cover 5, wherein the electrolyte isolation cover 4 and the acid mist isolation cover 5 are made of polyethylene plastic; a liquid injection port 6 is provided on the battery housing 1, and an internal thread is designed at the lower part of the liquid injection port 6; the pole group 2, the colloidal electrolyte 3, the electrolyte isolation cover 4 and the acid mist isolation cover 5 are all placed in the battery housing 1; a safety valve 7 is provided on the top of the battery housing 1, and the safety valve 7 is provided. The top of the full valve 7 extends to the top of the battery housing 1; the pole group 2 is composed of multiple pole plates arranged alternately and separated by a partition, and a pole column 201 and a bus bar 202 are provided on the pole group 2; the electrolyte isolation cover 4 includes an isolation plate 401 and a support 402, the thickness of the isolation plate 401 is 2-5mm, the height of the support 402 is 5-10mm, and the width is about 10-15mm; the length and width of the isolation plate 401 are respectively adapted to the length and width of the pole group 2, and the isolation plate 401 is provided with A through hole 4011 is provided, the position of the through hole 4011 corresponds to the position of the pole on the pole group 2, and the diameter of the through hole 4011 is adapted to the diameter of the pole; the electrolyte isolation cover 4 is also provided with a plurality of through holes 4012, the size of the through holes 4012 is 3-5mm; the support 402 is provided at the bottom of the isolation plate 401; the electrolyte isolation cover 4 is installed on the upper part of the pole group 2, the through hole 4011 on the isolation plate 401 passes through the pole, and the support 402 is located on the bus 202 on the pole group 2 A sealing ring 8 is provided on the pole, and the inner diameter of the sealing ring 8 is smaller than the diameter of the pole 201; the acid mist isolation cover 5 includes a cover body 501 and a glass fiber cotton layer 502, the cover body 501 is a cylindrical structure with an upper end open, the outer wall of the acid mist isolation cover 5 is provided with an external thread, the external thread and the internal thread at the lower part of the liquid injection port 6 are adapted to be installed at the lower part of the liquid injection port 6 of the battery housing 1, an exhaust hole is provided at the bottom of the acid mist isolation cover 5, and heat pipes are provided around the battery housing 1, and water is filled in the heat pipes as a heat conduction medium.

[0030] The battery housing is provided with an upper cover. Open the upper cover of the battery housing, install the pole group 2 into the battery housing 1, set the electrolyte isolation cover on the pole, tighten the external thread of the acid mist isolation cover with the internal thread of the injection port to fix the acid mist isolation cover to the upper cover, cover the upper cover, inject the colloidal electrolyte 3 through the injection port 6 on the battery housing 1, and flow to the pole group 2 and the space around the pole group 2 through the through hole 4012 on the isolation plate 401. After the colloidal electrolyte 3 is injected, check the electrolyte liquid. surface, ensuring that the liquid surface is flush with the isolation plate 401 on the electrolyte isolation cover 4 to ensure the uniformity of the electrolyte amount. After the electrolyte gels, glass fiber cotton is placed from the liquid injection port to the bottom of the acid mist isolation cover 5. The porosity of the glass fiber cotton is greater than 90%, allowing the gas to pass through while effectively absorbing the acid mist. After charging and discharging, the colloidal electrolyte 3 gels and is dispersed in and around the pole group. The electrolyte on the top of the pole group is fixed in the electrolyte isolation cover, forming effective protection for the bus 202.

[0031] Although the present invention has been described in detail with reference to the accompanying drawings and in conjunction with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, persons of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions shall fall within the scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A colloidal valve-regulated battery with an isolation cover, characterized in that: It comprises a battery housing (1), a pole group (2), a colloidal electrolyte (3), an electrolyte isolation cover (4) and an acid mist isolation cover (5); A liquid injection port (6) is provided on the battery housing (1), and an internal thread is designed at the lower portion of the liquid injection port (6); a pole group (2), a colloidal electrolyte (3), an electrolyte isolation cover (4), and an acid mist isolation cover (5) are all placed in the battery housing (1); a safety valve (7) is provided on the top of the battery housing (1), and the top of the safety valve (7) extends above the top of the battery housing (1); The pole group (2) is formed by a plurality of pole plates arranged alternately and separated by partitions, and pole columns (201) and busbars (202) are provided on the pole group (2); The electrolyte isolation cover (4) comprises an isolation plate (401) and a support (402), wherein the length and width of the isolation plate (401) are respectively adapted to the length and width of the pole group (2), and a through hole (4011) is provided on the isolation plate (401), wherein the position of the through hole (4011) corresponds to the position of the pole on the pole group (2), and the diameter of the through hole (4011) is adapted to the diameter of the pole; The electrolyte isolation cover (4) is further provided with a plurality of second through holes (4012), and the support (402) is provided at the bottom of the isolation plate (401); The electrolyte isolation cover (4) is installed on the upper part of the pole group (2), the through hole (4011) on the isolation plate (401) passes through the pole, the support (402) is located on the busbar (202) on the pole group (2), and a sealing ring (8) is provided on the pole; The acid mist isolation cover (5) comprises a cover body (501) and a glass fiber cotton layer (502); the cover body (501) is a cylindrical structure with an upper end open; an outer wall of the acid mist isolation cover (5) is provided with an external thread, the external thread being adapted to the internal thread at the lower portion of the liquid injection port (6) and being installed at the lower portion of the liquid injection port (6) of the battery housing (1); and an exhaust hole is provided at the bottom of the acid mist isolation cover (5).

2. The colloidal valve-regulated battery with an isolation cover according to claim 1, characterized in that: The size of through hole 2 (4012) is 3-5 mm.

3. The colloidal valve-regulated battery with an isolation cover according to claim 1, characterized in that: The support (402) has a height of 5-10 mm and a width of 10-15 mm.

4. The colloidal valve-regulated battery with an isolation cover according to claim 1, wherein: The thickness of the isolation plate (401) is 2-5 mm.

5. The colloidal valve-regulated battery with an isolation cover according to claim 1, characterized in that: The electrolyte isolation cover (4) and the acid mist isolation cover (5) are made of polyethylene plastic.

6. The colloidal valve-regulated battery with an isolation cover according to claim 1, wherein: The inner diameter of the sealing ring (8) is smaller than the diameter of the pole (201).

7. The colloidal valve-regulated battery with an isolation cover according to claim 1, wherein: Heat pipes are arranged around the battery housing (1), and the heat pipes are filled with water as a heat conducting medium.

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