Energy storage battery shell

Abstract

The utility model relates to an energy storage battery shell, belongs to the technical field of storage battery shells, and solves the problems that in the prior art, after formation of a traditional battery is finished, the requirement for manual acid pouring is high, the labor intensity is high, and splashing is prone to hurting people. The acid absorption device comprises an upper cover, a bottom groove and an acid absorption pipe, the upper cover is arranged on the bottom groove in a covering mode, an acid discharge hole and an air release valve hole are formed in the upper cover, the upper end of the acid absorption pipe is connected with the acid discharge hole, the lower end of the acid absorption pipe is located in the bottom groove, and the bottom end of the acid absorption pipe makes contact with the inner bottom face of the bottom groove. The acid suction pipe is used for discharging acid, the energy storage battery does not need to be manually turned over to pour the acid, the labor intensity of manual acid pouring can be relieved, people can be prevented from being hurt by splashing in the manual acid pouring process, the discharge amount of acid liquor can be controlled, and strict acid saturation control can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shells, in particular to an energy storage battery shell. Background Art

[0002] Traditional batteries are poured out of acid after formation, and the battery must be turned over when pouring acid. The disadvantages are that it places strict demands on people, requiring the person pouring acid to be tall, strong, and skilled. Secondly, pouring acid can easily cause acid splashing, causing burns to the human body. Utility Model Content

[0003] In view of the above analysis, the embodiment of the utility model aims to provide an energy storage battery housing to solve the problems of high labor intensity and easy splashing and injuring people in the manual acid pouring of traditional batteries after the formation.

[0004] The purpose of this utility model is mainly achieved through the following technical solutions:

[0005] A shell of an energy storage battery comprises an upper cover, a bottom groove and an acid absorption tube, wherein the upper cover is arranged on the bottom groove, an acid discharge hole and an air release valve hole are arranged on the upper cover, the upper end of the acid absorption tube is connected to the acid discharge hole, the lower end of the acid absorption tube is located in the bottom groove, and the bottom end of the acid absorption tube is in contact with the inner bottom surface of the bottom groove.

[0006] Furthermore, a slope is provided at the lower opening of the acid absorption tube.

[0007] Furthermore, a protrusion is provided at the bottom of the upper cover, and a first groove connected to the protrusion is provided at the top of the bottom groove.

[0008] Furthermore, a second groove is provided on the upper cover.

[0009] Furthermore, the upper portion of the second groove is an arc-shaped gripping portion protruding from the top surface of the upper cover.

[0010] Furthermore, the upper cover is also provided with a positive electrode hole and a negative electrode hole.

[0011] Furthermore, the acid discharge hole is arranged at the corner of the positive terminal of the upper cover.

[0012] Furthermore, the air release valve hole is located between the positive electrode hole and the negative electrode hole.

[0013] Furthermore, reinforcing ribs are provided on the inner side of the upper cover.

[0014] Furthermore, a support block is provided at the bottom of the bottom trough.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] (1) The utility model is provided with an acid discharge hole on the upper cover, the upper end of the acid suction pipe is connected to the acid discharge hole, and the lower end of the acid suction pipe extends into the inner bottom surface of the bottom tank. After the formation is completed, the acid discharge hole is connected to a negative pressure vacuum pump, and the acid is discharged by the acid suction pipe. There is no need to manually turn over the energy storage battery to discharge the acid, which can not only reduce the labor intensity of manual acid discharge, but also avoid splashing and injuring people during manual acid discharge. It can also control the discharge amount of the acid liquid and achieve strict acid saturation control.

[0017] (2) The upper cover of the utility model is provided with a vent valve hole. During formation, cold acid is directly injected into the bottom of the bottom tank through the acid discharge hole and the acid absorption pipe, and then flows out through the upper vent valve hole connected to the reducer, thus forming a low-input and high-output circulation flow, which can effectively bring out the heat energy generated by the formation; after the formation is completed, negative pressure is applied at the acid discharge hole to absorb excess acid, which can effectively control the acid content inside the energy storage battery and improve the consistency of the energy storage battery.

[0018] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0020] Figure 1 It is a structural schematic diagram of an energy storage battery housing in a specific embodiment;

[0021] Figure 2 This is one of the schematic diagrams of the connection structure between the upper cover and the acid absorption tube of a specific embodiment;

[0022] Figure 3 This is a second schematic diagram of the connection structure between the upper cover and the acid absorption tube of a specific embodiment;

[0023] Figure 4 It is a structural schematic diagram of the upper cover of a specific embodiment;

[0024] Figure 5 It is one of the structural schematic diagrams of the bottom tank of a specific embodiment;

[0025] Figure 6 This is the second structural schematic diagram of the bottom tank of a specific embodiment.

[0026] Reference numerals:

[0027] 1-upper cover; 11-acid discharge hole; 12-protrusion; 13-reinforcement rib; 14-second groove; 15-arc-shaped gripping portion; 16-positive electrode hole; 17-negative electrode hole; 18-air release valve hole; 2-bottom groove; 21-support block; 3-acid absorption tube; 31-inclined surface. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0029] A specific embodiment of the utility model is as follows Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a housing of an energy storage battery is disclosed, comprising an upper cover 1, a bottom groove 2 and an acid absorption tube 3. The upper cover 1 is arranged on the bottom groove 2, and an acid discharge hole 11 is arranged on the upper cover 1. The upper end of the acid absorption tube 3 is connected to the acid discharge hole 11, and the lower end of the acid absorption tube 3 is located in the bottom groove 2, and the bottom end of the acid absorption tube 3 contacts the inner bottom surface of the bottom groove 2.

[0030] Compared with the prior art, the energy storage battery housing provided in this embodiment is provided with an acid discharge hole 11 on the upper cover 1, the upper end of the acid absorption tube 3 is connected to the acid discharge hole 11, and the lower end of the acid absorption tube 3 extends into the inner bottom surface of the bottom tank 2. After the formation is completed, the acid discharge hole 11 is connected to the negative pressure vacuum pump, and the acid absorption tube 3 is used to discharge the acid, without the need to manually flip the energy storage battery to discharge the acid, which can not only reduce the labor intensity of manual acid discharge, but also avoid splashing and injuring people during manual acid discharge, and can also control the discharge amount of the acid liquid, and can achieve strict acid saturation control.

[0031] In order to avoid clogging of the lower end of the acid absorption pipe 3 extending to the inner bottom surface of the bottom tank 2, Figure 2 and Figure 3 As shown, the lower opening of the acid absorption tube 3 is provided with an inclined surface 31. By providing the inclined surface 31 at the lower opening of the acid absorption tube 3, when the lower end of the acid absorption tube 3 contacts the inner bottom surface of the bottom tank 2, the lower end of the acid absorption tube 3 will not be blocked.

[0032] In order to connect with the bottom tank 2, Figure 2 and Figure 3 As shown, the bottom of the upper cover 1 is provided with a protrusion 12, which surrounds the bottom of the upper cover 1. Correspondingly, the top of the bottom groove 2 is provided with a first groove (not shown in the figure) that matches the protrusion 12. The protrusion 12 is inserted into the groove to achieve the upper cover 1 being buckled on the bottom groove 2.

[0033] In order to enhance the structural strength of the upper cover 1, Figure 4 As shown, the inner side of the upper cover 1 is provided with reinforcing ribs 13 , and the reinforcing ribs 13 are crisscrossed on the inner side of the upper cover 1 .

[0034] In order to facilitate the removal of energy storage batteries, Figure 2 and Figure 3 As shown, the upper cover 1 is provided with a second groove 14, and two second grooves 14 are provided, and the two second grooves 14 are symmetrically arranged on both sides of the upper cover 1. In order to adapt to the force exerted by human hands and make the energy storage battery easier to hold when taking it, the upper part of the second groove 14 is an arc-shaped gripping portion 15 protruding from the top surface of the upper cover 1.

[0035] Understandably, if Figure 2 , Figure 3 and Figure 4 As shown, the upper cover 1 is also provided with a positive electrode hole 16 and a negative electrode hole 17. The acid discharge hole 11 is opened at the corner of the positive end of the upper cover 1.

[0036] Considering that a large amount of heat will be generated inside the energy storage battery due to the large current when the energy storage battery is undergoing the formation process, in order to dissipate the heat, such as Figure 1 , Figure 2 and Figure 4 As shown, the upper cover 1 is also provided with a vent valve hole 18, which is located between the positive electrode hole 16 and the negative electrode hole 17. During formation, cold acid is directly injected into the bottom of the bottom tank 2 through the acid discharge hole 11 and the acid absorption pipe 3, and then flows out through the upper vent valve hole 18 connected to the reducer, so that a low-input and high-output circulation flow is formed, which can effectively bring out the heat generated by the formation; after the formation is completed, negative pressure is applied at the acid discharge hole 11 to suck out excess acid, which can effectively control the acid content inside the energy storage battery and improve the consistency of the energy storage battery.

[0037] It should be noted that the acid discharge hole 11 and the air release valve hole 18 are in a sealed state when not in use. For example, a membrane seal formed by a 0.2 mm thick injection molded shell is provided at the acid discharge hole 11, and a sealing plug can also be used for sealing. The sealing method of the air release valve hole 18 is similar and will not be repeated.

[0038] Considering that the battery will wear out the bottom during use, such as Figure 5 and Figure 6 As shown, a support block 21 is provided at the bottom of the bottom groove 2. Preferably, four support blocks 21 are provided, and the four support blocks 21 are evenly distributed at the four corners of the bottom of the bottom groove 2.

[0039] It is worth noting that the battery casing in this embodiment adopts a wide and short body, abandoning the tall design of the battery casing of the traditional large-capacity battery, and adopts a wide and short body to avoid acid density stratification during internal circulation and reduce the disadvantage of low active cycle utilization rate.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage battery housing, characterized in that: The invention comprises an upper cover (1), a bottom groove (2) and an acid absorption pipe (3), wherein the upper cover (1) is arranged on the bottom groove (2), the upper cover (1) is provided with an acid discharge hole (11) and an air release valve hole (18), the upper end of the acid absorption pipe (3) is connected to the acid discharge hole (11), the lower end of the acid absorption pipe (3) is located in the bottom groove (2), and the bottom end of the acid absorption pipe (3) is in contact with the inner bottom surface of the bottom groove (2).

2. The energy storage battery housing according to claim 1, characterized in that: The lower opening of the acid absorption tube (3) is provided with an inclined surface (31).

3. The energy storage battery housing according to claim 1, characterized in that: The bottom of the upper cover (1) is provided with a protrusion (12), and the top of the bottom groove (2) is provided with a first groove connected to the protrusion (12).

4. The energy storage battery casing according to any one of claims 1 to 3, characterized in that: The upper cover (1) is provided with a second groove (14).

5. The energy storage battery casing according to claim 4, characterized in that: The upper portion of the second groove (14) is an arc-shaped gripping portion (15) protruding from the top surface of the upper cover (1).

6. The energy storage battery casing according to any one of claims 1 to 3 and 5, characterized in that: The upper cover (1) is also provided with a positive electrode hole (16) and a negative electrode hole (17).

7. The energy storage battery casing according to claim 6, characterized in that: The acid discharge hole (11) is arranged at the corner of the positive terminal of the upper cover (1).

8. The energy storage battery casing according to claim 6, characterized in that: The air release valve hole (18) is located between the positive electrode hole (16) and the negative electrode hole (17).

9. The energy storage battery casing according to any one of claims 1-3, 5, 7-8, characterized in that: A reinforcing rib (13) is provided on the inner side of the upper cover (1).

10. The energy storage battery casing according to any one of claims 1-3, 5, 7-8, characterized in that: A supporting block (21) is provided at the bottom of the bottom trough (2).

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