A flat tubular battery

Abstract

The utility model relates to a horizontally placed tubular storage battery, which comprises an outer shell and a battery body; the outer shell is a cavity structure composed of a shell and a cover body, the battery body is arranged inside the shell, a positive pole column hole, a negative pole column hole and an acid adding hole are formed on the cover body, the positive pole column hole and the negative pole column hole are symmetrically arranged on the plate surface of the cover body, the acid adding hole is located in the middle of the cover body, the acid adding hole is located above the connection line of the positive pole column hole and the negative pole column hole, and the lower end edge height of the acid adding hole is higher than the upper end edge height of the positive pole column hole and the negative pole column hole; an extension tube is formed on one side of the cover body away from the battery body, and a safety valve is sealed inside the extension tube; such a design enables the storage battery to be placed upright or horizontally, and when placed horizontally, since the acid adding hole is located on the upper side of the cover body plate surface, it is ensured that substances such as acid liquid and glue liquid will not flow out from the inside of the battery to block the safety valve.

Description

Technical Field

[0001] The utility model relates to the technical field of battery structure design, in particular to a flat tubular battery. Background Art

[0002] Currently, the main components of tubular batteries include: battery shell, safety valve, battery cover, plate, separator, sulfuric acid electrolyte and battery terminals.

[0003] The structure of the positive electrode type pipe and the negative electrode type flat plate of the tubular battery makes the height of the tubular battery quite high when placed upright. The weight of the battery is very heavy, which makes it inconvenient to install during use. A large vertical space is required, and the heavy battery is difficult to move up and down. Placing the battery horizontally can greatly reduce the vertical height and reduce the difficulty of transportation. Since the acid filling hole of the battery in the prior art is located between the two pole holes, if it is placed horizontally directly, the internal acidic substance will leak, causing damage to the battery. Utility Model Content

[0004] Based on the above description, the utility model provides a horizontal tubular storage battery to solve the technical problem in the prior art that internal acidic substances leak out when the storage battery is horizontally placed, causing damage to the battery.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A flat tubular storage battery, characterized in that it comprises a shell and a battery body;

[0007] The shell is a cavity structure composed of a shell and a cover body, the battery body is arranged inside the shell, and the cover body is formed with a positive electrode column hole, a negative electrode column hole and an acid adding hole, the positive electrode column hole and the negative electrode column hole are symmetrically arranged on the plate surface of the cover body, the acid adding hole is located in the middle of the cover body, the acid adding hole is located above the line connecting the positive electrode column hole and the negative electrode column hole, and the lower end edge height of the acid adding hole is higher than the upper end edge height of the positive electrode column hole and the negative electrode column hole; an extension tube is formed on the side of the cover body away from the battery body, and a safety valve is sealed inside the extension tube.

[0008] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0009] The flat-lay tubular storage battery provided in the present application has an acid adding hole arranged on one side of the cover body so that glue can be added through the acid adding hole. The safety valve is arranged in the acid adding hole as an exhaust passage. Such a design enables the storage battery to be placed upright or horizontally. When placed horizontally, since the acid adding hole is located on the upper side of the cover body plate, it is ensured that substances such as acid and glue will not flow out from the inside of the battery and block the safety valve.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Further, the battery body includes a positive plate, a negative plate, a separator, a positive bus bar, a negative bus bar, a positive electrode column and a negative electrode column;

[0012] The positive electrode plates and the negative electrode plates are arranged in a cycle in sequence, a partition is provided between each positive electrode plate and an adjacent negative electrode plate, the positive electrode plate is electrically connected to the positive bus, the negative electrode plate is electrically connected to the negative bus, the positive electrode column is electrically connected to the positive bus, and the negative electrode column is electrically connected to the negative bus.

[0013] Furthermore, it also includes a pole fixing ring and a sealing ring, the positive pole hole and the negative pole hole both have a receiving groove extending inward, the bottom of the receiving groove is formed with an annular limiting edge, the side wall of the receiving groove is formed with an internal thread, the sealing ring is sleeved on the outer side of the corresponding pole and arranged in the receiving groove, the pole fixing ring is sleeved on the corresponding pole and is threadedly connected to the internal thread, so that the sealing ring is in contact with the annular limiting edge.

[0014] Furthermore, fixed edges extending along the circumferential direction are formed on opposite sides of the interior of the extension tube, and the safety valve includes a valve body, an elastic ring and a locking portion. The lower portion of the valve body is a cylindrical component, and the locking portion includes two oppositely arranged L-shaped limit strips formed on the outside of the cylindrical component. The elastic ring is mounted on the upper end of the cylindrical component for elastic contact with the upper end surface of the extension tube.

[0015] Furthermore, the end surface of the transverse portion of the L-shaped limiting strip close to the elastic ring is an inclined surface, and an end of the inclined surface close to the vertical portion of the L-shaped limiting strip is closer to the elastic ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the internal structure of a flat tubular storage battery provided in an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the structure of the cover body in the embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper half of the battery in the embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the structure of the safety valve in the embodiment of the present application;

[0020] Figure 5 Schematic diagram of the connection structure of the safety valve in the embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0023] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0024] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0025] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0026] like Figures 1 to 5 As shown, an embodiment of the present application provides a flat tubular storage battery, characterized in that it includes a shell 10 and a battery body 20.

[0027] The outer shell 10 is a cavity structure composed of a shell 11 and a cover 12. The battery body 20 is arranged inside the shell 10. The shell 11 and the cover 12 are made of materials such as ABS resin, providing a placement space for the battery body 20 and protecting internal components from external influences.

[0028] The cover body 12 is formed with a positive electrode post hole 12a, a negative electrode post hole 12b and an acid adding hole 12c.

[0029] An extension tube 121 is formed on one side of the cover body 12 away from the battery body, and a safety valve 30 is sealed inside the extension tube 121 .

[0030] Among them, the positive electrode column hole 12a and the negative electrode column hole 12b are symmetrically arranged on the plate surface of the cover body 12, the acid adding hole 12c is located in the middle of the cover body 12, the acid adding hole 12c is located above the line connecting the positive electrode column hole 12a and the negative electrode column hole 12b, and the lower end edge height of the acid adding hole 12c is higher than the upper end edge height of the positive electrode column hole 12a and the negative electrode column hole 12b.

[0031] When placed upright, the battery electrolyte should be 10-15 mm higher than the plate. When placed horizontally, the liquid level should be higher than the middle horizontal plane of the shell. If the traditional middle opening method is adopted, the acid will leak out from the acid adding hole, and the colloidal substance will block the acid adding hole, causing battery damage. Therefore, in the embodiment of the present application, the acid adding hole 12c is arranged on one side of the plate surface of the cover body 12, which can effectively ensure that the acid will not flow out when placed horizontally.

[0032] The battery body 20 includes a positive electrode plate 21, a negative electrode plate 22, a separator 23, a positive bus bar 24, a negative bus bar 25, a positive electrode column 26 and a negative electrode column 27;

[0033] The positive plates 21 and the negative plates 22 are arranged in a cycle in sequence, and a partition 23 is provided between each positive plate 21 and the adjacent negative plate 22. The positive plate 21 is electrically connected to the positive bus 24, the negative plate 22 is electrically connected to the negative bus 25, the positive column 26 is electrically connected to the positive bus 24, and the negative column 27 is electrically connected to the negative bus 25.

[0034] When the acid material is added into the housing 10 , most of the areas of the positive electrode plate 21 , the negative electrode plate 22 , and the separator 23 away from the cover 12 are covered by the acid material, forming an internal circuit of the battery.

[0035] Among them, in the embodiment of the present application, the positive plate 21 is composed of a lead-antimony-calcium alloy fence, which contains lead oxide as an active material. Its main function is that when the battery is discharged, the lead oxide reacts with sulfuric acid to form lead sulfate and releases electrical energy at the same time. During charging, the lead sulfate will be reduced to lead oxide to prepare for the next discharge. The negative plate 22 is composed of a lead-antimony-calcium alloy fence, which contains a spongy fiber active material. Its function is similar to that of the positive plate, but during the discharge process, the active material on the negative plate will react with sulfuric acid to form lead sulfate, and during the charging process, the lead sulfate will be reduced to spongy lead. The separator 23 is made of a microporous material, such as an AGM separator, and its function is to maintain the electrolyte, while preventing the positive and negative electrodes from short-circuiting, and ensuring that the chemical reaction inside the battery proceeds normally. The acidic material mentioned in this application is the electrolyte, which is mainly composed of sulfuric acid and water. Its function is to conduct ions in the electrochemical reaction of the battery so that electrons can be transferred between the positive and negative active materials of the battery.

[0036] The flat tubular storage battery further includes a pole fixing ring 28 and a sealing ring 29. Both the positive pole hole 12a and the negative pole hole 12b have a receiving groove 121 extending inwardly. The bottom of the receiving groove 121 is formed with an annular limiting edge 122. The side wall of the receiving groove 121 is formed with an internal thread. The sealing ring 29 is sleeved on the outer side of the corresponding pole and arranged in the receiving groove 121. The pole fixing ring 28 is sleeved on the corresponding pole and is threadedly connected with the internal thread, so that the sealing ring 29 is in contact with the annular limiting edge 122, which ensures that the pole is installed stably and forms a seal on the outer part of the pole.

[0037] The safety valve 30 is made of acid-resistant and anti-aging synthetic rubber. Its function is to release gas when the internal pressure of the battery is higher than the normal pressure, maintain the pressure at normal level, and prevent oxygen from entering the battery. The installation of the safety valve 30 is as follows:

[0038] Circumferentially extending fixed ridges 1251 are formed on opposite sides of the extension tube 125. The safety valve 30 includes a valve body 31, an elastic ring 32 and a locking portion 33. The lower portion of the valve body 31 is a cylindrical component 311. The locking portion 33 includes two oppositely arranged L-shaped limit strips 331 formed on the outer side of the cylindrical component 311. The elastic ring 32 is mounted on the upper end of the cylindrical component 311 for elastic contact with the upper end surface of the extension tube 125.

[0039] Specifically, the end face of the transverse portion of the L-shaped limit strip 331 close to the elastic ring 32 is a slope, and the end of the slope close to the vertical portion of the L-shaped limit strip 331 is closer to the elastic ring 32. With the above structure, when the L-shaped limit strip 331 is connected to the fixed edge 1251, as the safety valve 30 rotates, the slope on the L-shaped limit strip 331 contacts and gradually tightens with the fixed edge 1251, and the elastic ring 32 is appropriately compressed to ensure the sealing of the safety valve 30.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat tubular storage battery, characterized in that: including a housing and a battery body; The shell is a cavity structure composed of a shell and a cover body, the battery body is arranged inside the shell, and the cover body is formed with a positive electrode column hole, a negative electrode column hole and an acid adding hole, the positive electrode column hole and the negative electrode column hole are symmetrically arranged on the plate surface of the cover body, the acid adding hole is located in the middle of the cover body, the acid adding hole is located above the line connecting the positive electrode column hole and the negative electrode column hole, and the lower end edge height of the acid adding hole is higher than the upper end edge height of the positive electrode column hole and the negative electrode column hole; an extension tube is formed on the side of the cover body away from the battery body, and a safety valve is sealed inside the extension tube.

2. The flat tubular storage battery according to claim 1, characterized in that: Fixed edges extending along the circumferential direction are formed on opposite sides of the extension tube. The safety valve includes a valve body, an elastic ring and a locking portion. The lower portion of the valve body is a cylindrical component. The locking portion includes two oppositely arranged L-shaped limit strips formed on the outer side of the cylindrical component. The elastic ring is mounted on the upper end of the cylindrical component for elastically contacting the upper end surface of the extension tube.

3. The flat tubular storage battery according to claim 2, characterized in that: The end surface of the transverse portion of the L-shaped limiting strip close to the elastic ring is an inclined surface, and the end of the inclined surface close to the vertical portion of the L-shaped limiting strip is closer to the elastic ring.

Images