Abutting group stand type convenient energy supply device

Abstract

The application belongs to the technical field of lithium battery power supply, and particularly relates to a butt group type convenient power supply device, which comprises a conductive frame and a conductive plate. The conductive frame is provided with a containing cavity for containing an electric core. The conductive plate is arranged in the containing cavity. Two poles of the electric core are respectively in butt conduction with the bottom wall of the conductive frame and the conductive plate. The conductive frame and the conductive plate are both made of conductive materials. The conductive plate is insulated from the conductive frame. The electrode soft body of the electric core directly butts with the conductive plate and the conductive frame to form an electronic moving path. The butt type electric core mounting mode can effectively improve the installation convenience of the power supply device, and further improve the manufacturing efficiency of the power supply device. After the butt structure replaces the traditional metal phase structure, the whole conductive frame can be used as the anode of the power supply device to perform chemical reaction, effectively improving the reaction efficiency, and further enabling the power supply device to realize the effects of continuous high-power output or rapid storage of electric energy.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery power supply technology, and particularly relates to a convenient, modular power supply device. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become the mainstream technology.

[0003] For example, the invention described in application number CN201720803782.1, entitled "Invention of a Full-Taper Square Lithium Battery," mentions that "a full-tab square lithium battery includes a casing, the casing comprising a square shell with open ends, an upper cover plate and a lower cover plate fixed to the two ends of the casing respectively, a battery cell disposed inside the casing, and a strip-shaped hole on the upper cover plate, within which a positive electrode post is fixed. Specifically, the four sides of the positive electrode post are provided with grooves, the wall of the strip-shaped hole on the upper cover plate is fitted into the groove, an upper insulating layer is fixed between the upper cover plate and the positive electrode post, the upper groove wall is an aluminum washer, the aluminum washer and the positive electrode post are a two-piece structure, the lower part of the upper insulating layer extends outward horizontally to the casing and then continues downward until it contacts the battery cell; the lower cover plate is provided with a strip-shaped hole, within which a negative electrode post is fixed. Compared with the prior art, the technical effect of this invention is that the strip-shaped hole on the cover plate, which fills the electrode post, increases the area of ​​the electrode post and improves the battery rate performance."

[0004] Therefore, based on the aforementioned patent documents, a traditional lithium battery includes a cell, a casing, an upper cover, and a lower cover. The upper and lower covers serve as the two poles of the battery structure and are electrically connected to the circuit structure. The casing is used to cover and protect the cell, and electrons move along the internal material of the cell to achieve power transmission between the battery and the external circuit structure. However, traditional lithium battery structures mostly have only one set of cells, resulting in low electron flow. Moreover, regardless of whether the cell structure is square or cylindrical, the battery is limited by the number of cells and the metallographic structure. For example, in traditional battery structures, the conductive flexible parts on the two poles of the cell are mostly welded and fixed to the cover, resulting in generally poor power supply efficiency, which gradually fails to meet market demands and urgently needs improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a convenient, modular power supply device that addresses the problem that most existing lithium battery structures only have one set of cells, whether square or cylindrical. Due to limitations in the number of cells and metallographic structure, the power supply efficiency is generally low and gradually fails to meet market demands, thus requiring improvement.

[0006] To achieve the above objectives, an embodiment of the present invention provides a contact-mounted, modular, convenient power supply device, comprising a conductive frame and a conductive plate. The conductive frame is provided with a cavity for accommodating a battery cell; the conductive plate is disposed within the cavity; wherein the two poles of the battery cell are respectively in contact with and connected to the bottom wall of the conductive frame and the conductive plate, the conductive frame and the conductive plate are both made of conductive material, and the conductive plate is insulated from the conductive frame.

[0007] Optionally, a positive conductive post is provided on the outer wall of the conductive frame, and a negative conductive post is provided on the conductive plate. The negative conductive post passes through the conductive frame and extends to the outside of the conductive frame.

[0008] Optionally, the conductive frame includes a conductive sleeve, a base plate, and an insulating cover plate. The base plate is disposed at one end of the conductive sleeve, and the insulating cover plate is disposed at the end of the conductive sleeve away from the base plate. The receiving cavity is formed in the inner ring of the conductive sleeve, the battery cell is disposed along the length of the conductive sleeve, the conductive plate is disposed between the battery cell and the insulating cover plate, the other end of the battery cell abuts against the base plate, and the insulating cover plate is provided with mounting holes for accommodating the negative electrode conductive post.

[0009] Optionally, the number of battery cells is multiple sets, and the multiple sets of battery cells are arrayed between the conductive plate and the base plate.

[0010] Optionally, the positive conductive post is formed on the outer wall of the conductive sleeve.

[0011] Optionally, the conductive sleeve is provided with an injection port, which is connected to the receiving cavity and is used to fill the receiving cavity with electrolyte.

[0012] Optionally, the conductive sleeve is provided with an explosion-proof air extraction port.

[0013] Optionally, the insulating cover plate includes an aluminum cover plate, a first insulating pad, and a second insulating pad. The aluminum cover plate is installed and covers the end of the conductive sleeve. The first insulating pad is made of insulating material and is fixedly disposed on the aluminum cover plate and located outside the receiving cavity. The second insulating pad is made of insulating material and is fixedly disposed on the end of the aluminum cover plate facing away from the first insulating pad and located inside the receiving cavity. The conductive plate is tightly fitted with the second insulating pad, and a gap is provided between the edge of the conductive plate and the inner wall of the conductive sleeve. The mounting hole is formed on the first insulating pad. Both the second insulating pad and the aluminum cover plate are provided with clearance holes for venting the negative electrode conductive post, and a gap is provided between the negative electrode conductive post and the inner wall of the clearance hole.

[0014] Optionally, electrode markings are provided on the first insulating pad and the base plate respectively.

[0015] Optionally, both the conductive sleeve and the base plate are made of aluminum.

[0016] The above-mentioned one or more technical solutions in the contact-connected modular convenient power supply device provided in this invention embodiment have at least one of the following technical effects: The conductive plate and conductive frame are electrically connected to the power connection terminals of the load system, and simultaneously, electrolyte is injected into the receiving cavity, allowing the electrolyte to fully contact the battery cell to generate current. For example, if the conductive plate is the negative electrode, the electrons formed after the battery cell reacts with the electrolyte enter the load system along the conductive plate and then flow to the connection terminals of the conductive frame, completing the circuit. Compared to existing lithium battery structures, which mostly only have one set of battery cells, whether square or cylindrical,... Batteries, limited by the number of cells and metallographic structure, generally have low power supply efficiency, gradually failing to meet market demands. This presents a pressing technical challenge. In the power supply device provided by this invention, the electrode soft body of the cell directly contacts the conductive plate and conductive frame to form an electronic movement path. This contact-type cell installation method effectively improves the ease of installation of the power supply device, thereby increasing its manufacturing efficiency. After this contact structure replaces the traditional metallographic structure, the entire conductive frame can serve as the positive electrode of the power supply device for chemical reactions, effectively improving reaction efficiency and thus enhancing the charging and discharging performance of the power supply device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the convenient, vertically mounted energy supply device provided in an embodiment of the present invention.

[0019] Figure 2 for Figure 1 The internal cross-sectional structure diagram of the connecting assembly-type convenient energy supply device.

[0020] Figure 3 This is a schematic diagram of the conductive frame provided in an embodiment of the present invention.

[0021] Figure 4 This is an exploded view of the structure of the convenient, vertically mounted energy supply device provided in an embodiment of the present invention.

[0022] Figure 5 A perspective view of a battery cell provided in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the battery cell installed after being received in the cavity, as provided in an embodiment of the present invention.

[0024] Figure 7 This is a side sectional view of the convenient, modular power supply device provided in an embodiment of the present invention.

[0025] The following are the labeling elements in the figure:

[0026] 100—Conductive frame; 200—Conductive plate; 300—Accommodating cavity

[0027] 400—Cell; 410—Electrode; 420—Negative electrode conductive material

[0028] 430—Positive conductive soft body; 140—Conductive sleeve; 120—Base plate

[0029] 130—Insulating cover plate; 111—Liquid injection port; 112—Explosion-proof air extraction interface

[0030] 131—Aluminum cover plate; 132—First insulating pad; 133—Second insulating pad

[0031] 134—Void hole; 135—Mounting hole; 411—Mesh insulating sleeve

[0032] 110—Positive conductive post; 210—Negative conductive post. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-7 The described embodiments are exemplary and intended to explain embodiments of the invention, and should not be construed as limiting the invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0037] In one embodiment of the present invention, such as Figures 1-5 As shown, a convenient, modular power supply device is provided, comprising a conductive frame 100 and a conductive plate 200. The conductive frame 100 is provided with a cavity 300 for accommodating a battery cell 400. The conductive plate 200 is disposed within the cavity 300. The two poles of the battery cell 400 are respectively in contact with the bottom wall of the conductive frame 100 and the conductive plate 200. Both the conductive frame 100 and the conductive plate 200 are made of conductive material, and the conductive plate 200 is insulated from the conductive frame 100.

[0038] In this embodiment, the battery cell 400 includes an electrode 410, a negative conductive flexible electrode 420, and a positive conductive flexible electrode 430. The electrode 410 is wound into a cylindrical or flat cylindrical structure. The positive conductive flexible electrode 430 and the negative conductive flexible electrode 420 are respectively disposed at both ends of the electrode 410. After the electrode 410 is wound into a preset cylindrical structure, a mesh insulating sleeve 411 is wrapped around the outside of the electrode 410. The mesh insulating sleeve 411 is made of a rigid material.

[0039] like Figures 5-6 As shown, in another embodiment of the present invention, the cross-sections of the negative conductive soft body 420 and the positive conductive soft body 430 are both arranged in an isosceles trapezoidal shape. The narrow ends of the negative conductive soft body 420 and the positive conductive soft body 430 are far away from the electrode 410. When the soft body undergoes a preset deformation, its edge expands and deforms in the horizontal direction, and can be formed into a disk-shaped structure with an area close to the bottom surface area of ​​the electrode 410 after winding, thereby improving the stability of the battery cell 400 installation. In other embodiments, the shape of the conductive soft body is flexible and can be adaptively adjusted according to each installation space.

[0040] like Figure 6 As shown, the negative conductive soft body 420 is made of copper foil material, and the positive conductive soft body 430 is made of aluminum foil material. When the battery cell 400 is installed into the receiving cavity 300, the negative conductive soft body 420 deforms adaptively to tightly abut against the conductive plate 200, and the positive conductive soft body 430 deforms adaptively to tightly abut against the inner wall of the conductive frame 100.

[0041] like Figure 7 As shown, specifically, the conductive plate 200 and the conductive frame 100 are electrically connected to the terminals of the load system. Simultaneously, electrolyte is injected into the receiving cavity 300, ensuring sufficient contact between the electrolyte and the battery cell 400 to generate current. Taking the conductive plate 200 as the negative electrode, the electrons formed after the reaction between the battery cell 400 and the electrolyte enter the load system along the conductive plate 200 and then flow to the terminals of the conductive frame 100, completing the circuit. Compared to existing lithium battery structures, which mostly only have one set of battery cells 400, whether square or not... Alternatively, the cylindrical battery cell 400, limited by the number of cells 400 and the metallographic structure, generally has poor power supply efficiency and is gradually failing to meet market demands. This presents a pressing technical problem that needs improvement. In the power supply device provided by this embodiment, when the number of cells accommodating the cavity increases, on one hand, the battery cell part of the power supply device is transformed from a traditional single-cell winding structure to a multi-core internally integrated parallel battery cell module, thereby simplifying the structure and eliminating the metallographic structure formed during the installation of traditional conductors, such as welding.

[0042] On the other hand, the manufacturing efficiency of the power supply device has been effectively improved: the encapsulated battery pack has been changed to an array-combined cell module, which improves the integration efficiency of the cell part. This integrated, modular internal integration molding method effectively simplifies the battery production process and at the same time greatly improves the battery production efficiency and material utilization.

[0043] Meanwhile, since the structure formed by the battery cell after installation in this way is flexible, the quantity and arrangement can be adjusted according to the manufacturer's needs or uses, thus forming high-current power supply devices of various sizes and shapes, effectively adapting to the battery requirements of any power type of place, and effectively improving the market compatibility of the power supply device.

[0044] like Figures 1-4As shown, in another embodiment of the present invention, a positive conductive post 110 is provided on the outer wall of the conductive frame 100, and a negative conductive post 210 is provided on the conductive plate 200. The negative conductive post 210 passes through the conductive frame 100 and extends to the outside of the conductive frame 100. Specifically, the conductive frame 100 is generally arranged in a hexahedral structure, and the negative conductive post 210 extends above the top surface of the conductive frame 100. In other embodiments, the overall structural shape of the conductive frame 100 is flexible and can present a prismatic structure to facilitate the array-type installation of the battery cells 400; the end faces of the positive conductive post 110 and the negative conductive post 210 are flexible, as long as the positive conductive post 110 and the negative conductive post 210 are on opposite sides so that the user can quickly distinguish the positive and negative terminals of the power supply device.

[0045] In another embodiment of the present invention, the conductive frame 100 includes a conductive sleeve 140, a base plate 120, and an insulating cover plate 130. The base plate 120 is disposed at one end of the conductive sleeve 140; the insulating cover plate 130 is disposed at the end of the conductive sleeve 140 away from the base plate 120; wherein, the receiving cavity 300 is formed in the inner ring of the conductive sleeve 140, the battery cell 400 is disposed along the length direction of the conductive sleeve 140, the conductive plate 200 is disposed between the battery cell 400 and the insulating cover plate 130, the other end of the battery cell 400 abuts against the base plate 120, and the insulating cover plate 130 is provided with a mounting hole 135 for accommodating the negative electrode conductive post 210.

[0046] Specifically, the bottom edge of the inner ring of the conductive sleeve 140 is welded to the edge of the base plate 120, allowing electricity to flow between the conductive sleeve 140 and the base plate 120. The positive conductive post 110 is a terminal block protruding from the outer wall of the conductive sleeve 140. The entire conductive frame 100 is integrally formed using welding technology and serves as the positive electrode of the power supply device. Its stable structure is beneficial for further improving conductivity. Both the conductive sleeve 140 and the base plate 120 are made of aluminum, which helps to increase the conductivity coefficient of the conductive sleeve 140 and the base plate 120, further improving the conductivity of the power supply device.

[0047] like Figure 2 As shown, in another embodiment of the present invention, the number of battery cells 400 is multiple sets, and the multiple sets of battery cells 400 are arrayed between the conductive plate 200 and the base plate 120. For example, in this embodiment, the number of battery cells 400 is six sets, and the six sets of battery cells 400 are evenly divided into two rows and laid in the receiving cavity 300. Using multiple sets of battery cells 400 as the carrier for the chemical reaction of lithium battery is beneficial to further improve the energy storage capacity of the power supply device. The number and arrangement of battery cells 400 are flexible and can be adaptively adjusted according to the size of the receiving cavity 300.

[0048] like Figure 4 As shown, in another embodiment of the present invention, the conductive sleeve 140 is provided with an injection port 111, which is connected to the receiving cavity 300 and is used to fill the receiving cavity 300 with electrolyte.

[0049] like Figure 4 As shown, in another embodiment of the present invention, an explosion-proof evacuation port 112 is provided on the conductive sleeve 140. Specifically, this port can be used to connect an external negative pressure device to a pipeline to evacuate the receiving cavity 300; it can also be connected to an explosion-proof valve to improve the safety factor of the power supply device.

[0050] like Figures 3-4 and Figure 7 As shown, in another embodiment of the present invention, the insulating cover plate 130 includes an aluminum cover plate 131, a first insulating pad 132, and a second insulating pad 133. The aluminum cover plate 131 is mounted and covers the end of the conductive sleeve 140. The first insulating pad 132 is made of insulating material and is fixedly disposed on the aluminum cover plate 131 and located outside the receiving cavity 300. The second insulating pad 133 is made of insulating material and is fixedly disposed on the aluminum cover plate 131 facing away from the cavity. The end of the first insulating pad 132 is located within the receiving cavity 300; wherein, the conductive plate 200 is tightly fitted with the second insulating pad 133, a gap is provided between the edge of the conductive plate 200 and the inner wall of the conductive sleeve 140, the mounting hole 135 is formed on the first insulating pad 132, and both the second insulating pad 133 and the aluminum cover plate 131 are provided with clearance holes 134 for clearing the negative electrode conductive post 210, and a gap is provided between the negative electrode conductive post 210 and the inner wall of the clearance hole 134.

[0051] Specifically, when the insulating cover plate 130 is installed on the upper end of the receiving cavity 300, the conductive plate 200 serves as the top wall of the receiving cavity 300. After the negative conductive flexible part 420 of the battery cell 400 undergoes a preset deformation, it fits tightly against the end face of the conductive plate 200. After the positive conductive flexible part 430 of the battery cell 400 undergoes a preset deformation, it fits tightly against the bottom wall of the receiving cavity 300. The conductive plate 200 maintains a non-contact state with the conductive sleeve 140 through a gap, thereby achieving insulation. The conductive plate 200 is in a non-contact state with the aluminum cover plate 131 through the second insulating pad 133, thereby achieving insulation; the negative electrode conductive post 210 is in a contact state with the aluminum cover plate 131 through the vent hole 134, thereby achieving insulation. At the same time, the conductive plate 200 and the second insulating pad 133 are fixedly attached with strong adhesive, which can also play a role in sealing and preventing leakage. The first insulating pad 132 is used to prevent the user from touching the aluminum cover plate 131 and getting an electric shock.

[0052] like Figure 1 As shown, in another embodiment of the present invention, electrode markings are respectively provided on the first insulating pad 132 and the base plate 120 to facilitate operators to quickly identify the location of the two poles of the power supply device.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A convenient, modular power supply device, characterized in that, include: A conductive frame, wherein the conductive frame is provided with a receiving cavity for accommodating the battery cell; A conductive plate, wherein the conductive plate is disposed within the receiving cavity; The two poles of the battery cell are respectively in contact with the bottom wall of the conductive frame and the conductive plate, and the conductive frame and the conductive plate are both made of conductive material. The conductive plate is insulated from the conductive frame. The battery cell includes an electrode sheet, a negative conductive material, and a positive conductive material. The electrode sheet is wound into a cylindrical or flat cylindrical structure. The positive conductive material and the negative conductive material are respectively disposed at both ends of the electrode sheet. After the electrode sheet is wound into a preset cylindrical structure, a mesh insulating sleeve is wrapped around the outside of the electrode sheet. The mesh insulating sleeve is made of rigid material. The cross-sections of both the negative electrode conductive material and the positive electrode conductive material are arranged in an isosceles trapezoidal shape, and the narrow ends of both the negative electrode conductive material and the positive electrode conductive material are far away from the electrode sheet; A positive conductive post is provided on the outer wall of the conductive frame, and a negative conductive post is provided on the conductive plate. The negative conductive post passes through the conductive frame and extends to the outside of the conductive frame. The conductive frame includes a conductive sleeve, a base plate, and an insulating cover plate. The base plate is disposed at one end of the conductive sleeve, and the insulating cover plate is disposed at the end of the conductive sleeve away from the base plate. The receiving cavity is formed in the inner ring of the conductive sleeve, the battery cell is disposed along the length of the conductive sleeve, the conductive plate is disposed between the battery cell and the insulating cover plate, the other end of the battery cell abuts against the base plate, and the insulating cover plate is provided with mounting holes for accommodating the negative electrode conductive post. The battery cells are arranged in multiple groups, and the multiple groups of battery cells are arrayed between the conductive plate and the base plate; The negative conductive soft electrode is made of copper foil material, and the positive conductive soft electrode is made of aluminum foil material. When the battery cell is installed into the receiving cavity, the negative conductive soft electrode can adapt to deform and tightly abut against the conductive plate, and the positive conductive soft electrode can adapt to deform and tightly abut against the inner wall of the conductive frame.

2. The convenient, modular power supply device according to claim 1, characterized in that: The positive conductive post is formed on the outer wall of the conductive sleeve.

3. The convenient, modular power supply device according to claim 1, characterized in that: The conductive sleeve is provided with an injection port, which is connected to the receiving cavity and is used to fill the receiving cavity with electrolyte.

4. The convenient, modular power supply device according to claim 1, characterized in that: The conductive sleeve is equipped with an explosion-proof air extraction port.

5. The convenient, modular power supply device according to any one of claims 1 to 4, characterized in that: The insulating cover plate includes: An aluminum cover plate, which is mounted and covers the end of the conductive sleeve; The first insulating pad is made of insulating material and is fixedly mounted on the aluminum cover plate and located outside the receiving cavity. The second insulating pad is made of insulating material and is fixedly disposed at the end of the aluminum cover plate opposite to the first insulating pad and located in the receiving cavity. The conductive plate is tightly fitted to the second insulating pad, and a gap is provided between the edge of the conductive plate and the inner wall of the conductive sleeve. The mounting hole is formed on the first insulating pad, and both the second insulating pad and the aluminum cover plate are provided with clearance holes for venting the negative electrode conductive post. A gap is provided between the negative electrode conductive post and the inner wall of the clearance hole.

6. The convenient, modular power supply device according to claim 5, characterized in that: Electrode markings are provided on the first insulating pad and the base plate respectively.

7. The convenient, modular power supply device according to any one of claims 1 to 4, characterized in that: Both the conductive sleeve and the base plate are made of aluminum.

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