Low-impedance storage battery

Abstract

The invention provides a low-impedance storage battery, which comprises an accommodating box, a battery module and a battery module, and is characterized in that an accommodating space is formed in the accommodating box; the first energy storage module is used for storing or supplying electric energy and is arranged in the accommodating box; the second energy storage module is used for storing or supplying short-time large current and is arranged in the containing box, the first energy storage module and the second energy storage module are electrically connected with each other, the second energy storage module at least comprises a circuit board, and the circuit board is provided with a second positive electrode and a second negative electrode; a first electric connector and a second electric connector are arranged on one side of the containing box, one end of the first electric connector and one end of the second electric connector penetrate out of the containing box, the other end of the first electric connector and the other end of the second electric connector are located in the containing box, and a second positive electrode and a second negative electrode on the circuit board of the second energy storage module are fixed to one end of the first electric connector and one end of the second electric connector in the containing box respectively.

Description

Technical Field

[0001] The invention relates to a battery, and in particular to a low-impedance battery with a module structure capable of reducing the battery impedance. Background Art

[0002] Most of the existing lithium iron batteries fix the internal components together and then fix them to the electrical connector through electrical connection wires or copper sheets. If the lithium iron battery is fixed to the electrical connector through copper sheets, since the copper sheets are rigid bodies, a heavy-duty bracket structure is required to support the weight of the entire lithium iron battery when the internal components of the lithium iron battery are fixed together. If the lithium iron battery is electrically connected to the electrical connector through electrical connection wires, in addition to the difficulty in assembling the electrical connection wires, both ends of the electrical connection wires need to be locked with contact points. If the connection wires themselves and the manufacturing tolerances are considered, the impedance of the entire lithium iron battery circuit will be increased invisibly. Therefore, no matter whether the lithium iron battery is fixed to the electrical connector through electrical connection wires or copper sheets, any assembly method has its inherent disadvantages.

[0003] Therefore, it is necessary to replace the current lithium iron battery module structure with a new battery module structure, avoid the heavy-load bracket structure, and reduce the overall impedance of the lithium iron battery module structure, so as to simplify the structure and assembly steps and achieve a low-impedance battery for the purpose of improving the charging and discharging efficiency. Summary of the invention

[0004] In view of the above-mentioned deficiencies, and in order to achieve the main purpose of the low-impedance battery capable of reducing the battery impedance, the structure of the low-impedance battery disclosed in the present invention comprises: a containing box having a containing space inside; a first energy storage module, which functions to store or supply electric energy and is arranged in the containing box; a second energy storage module, which functions to store or supply a large current for a short time and is arranged in the containing box, the first energy storage module and the second energy storage module are electrically connected to each other, the second energy storage module at least comprises a circuit board, the circuit board has a second positive electrode and a second negative electrode; and a first electrical connector and a second electrical connector are provided on one side of the containing box, one end of the first electrical connector and the second electrical connector passes through the containing box, and the other end of the first electrical connector and the second electrical connector is located in the containing box, and the second positive electrode and the second negative electrode on the circuit board of the second energy storage module are respectively fixed to one end of the first electrical connector and the second electrical connector in the containing box.

[0005] In order to achieve the above-mentioned object, the present invention discloses a low-impedance battery, wherein the first energy storage module is a lithium battery structure.

[0006] In order to achieve the above-mentioned purpose, the present invention discloses a low-impedance battery, wherein the lithium battery structure is composed of a plurality of lithium battery cells connected in series and parallel, and the plurality of lithium battery cells are selected from lithium ternary batteries, lithium iron batteries or one of their groups.

[0007] In order to achieve the above-mentioned object, the low-impedance battery disclosed in the present invention, wherein the second energy storage module is a capacitor structure.

[0008] In order to achieve the above-mentioned purpose, the present invention discloses a low-impedance battery, wherein the capacitor structure is composed of a plurality of capacitor units connected in series and in parallel, and the plurality of capacitor units are selected from capacitors, super capacitors, coil capacitors, inductive capacitors or one of their groups.

[0009] In order to achieve the above-mentioned purpose, the low-impedance battery disclosed in the present invention is characterized in that the second energy storage module is fixed to the first electrical connector and one end of the second electrical connector in the accommodating box by screw locking, snapping, welding, plugging or a combination thereof.

[0010] In order to achieve the above-mentioned purpose, the low-impedance battery disclosed in the present invention further comprises a control module, which controls the charging action or the discharging action between the first energy storage module and the second energy storage module.

[0011] In order to achieve the above-mentioned purpose, the low-impedance battery disclosed in the present invention further includes a pair of electrical connecting wires, the first energy storage module has a first positive electrode and a first negative electrode, one end of the pair of electrical connecting wires is electrically connected to the first positive electrode and the first negative electrode respectively, and the other end of the pair of electrical connecting wires is electrically connected to a pair of second circuit contacts of the control module respectively.

[0012] In order to achieve the above-mentioned object, the present invention discloses a low-impedance battery, wherein the accommodating box comprises a cover plate and a box body, and at least one side of the box body is open to accommodate at least a first energy storage module and a second energy storage module.

[0013] In order to achieve the above object, the present invention discloses a low impedance battery, wherein a spacer is sandwiched between the first energy storage module and the second energy storage module, one side of the spacer is attached to the first energy storage module, and the other side of the spacer is supported by the second energy storage module.

[0014] In order to achieve the above-mentioned object, the present invention discloses a low-impedance battery, wherein the first energy storage module is fixed to the bottom layer in the accommodating box by means of foam, colloid, adhesive, gluing or a combination thereof.

[0015] The detailed structure, features, assembly or use of the low impedance battery disclosed in the present invention will be described in the detailed description of the implementation method in the following. However, those skilled in the art should understand that the detailed description and the specific embodiments listed for implementing the present invention are only used to illustrate the present invention, and are not used to limit the claims of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional exploded view of the low-impedance battery of the present invention;

[0017] Figure 2This is a three-dimensional appearance diagram of the assembled low-impedance battery of the present invention.

[0018] Description of Reference Numerals

[0019] 100: low impedance battery;

[0020] 10: containing box;

[0021] 11: Cover plate;

[0022] 12: box body;

[0023] 13: Open mouth;

[0024] 14: First electrical connector

[0025] 15: second electrical connector;

[0026] 20: first energy storage module;

[0027] 30: second energy storage module;

[0028] 31: Circuit board;

[0029] 311: second positive electrode;

[0030] 312: second negative electrode;

[0031] 32: control module;

[0032] 40: Spacer material. DETAILED DESCRIPTION

[0033] Hereinafter, the components, steps and effects achieved of the low-impedance battery disclosed in the present invention are described by listing corresponding preferred embodiments in conjunction with the accompanying drawings. However, the components, dimensions and appearance of the low-impedance battery in the accompanying drawings are only used to illustrate the technical features of the present invention, and do not constitute a limitation to the present invention.

[0034] In order to solve the problems of the prior art lithium iron battery structure requiring a heavy-load bracket structure and the overall high impedance of the lithium iron battery circuit, the present invention designs a low-impedance battery 100, which mainly divides the structure of the low-impedance battery into two parts, a first energy storage module 20 and a second energy storage module 30, which are assembled and fixed in a box body 12 of a container box 10 with a accommodating space. The heavier first energy storage module 20, which is used to store or supply electric energy, is designed to be fixed to the bottom layer of the box body 12 of the container box 10 in the accommodating space, which can avoid the need for a heavy-load bracket to fix the heavier first energy storage module 20, thereby simplifying the structure and assembly steps; the second energy storage module 30, which requires a large current discharge and is used to store or supply a large current for a short time, is arranged in the box body 12 of the container box 10 and placed above the first energy storage module 20, or the first energy storage module 20 and the second energy storage module 30 are placed side by side. The two sides of the accommodating box 10 are respectively fixed to the bottom layer in the box body 12 of the accommodating box 10. At the same time, the second positive electrode 311 and the second negative electrode 312 on the circuit board 31 of the second energy storage module 30 are respectively directly fixed to two electrical connectors located on the cover plate 11 on one side of the accommodating box 10. The two electrical connectors are respectively the first electrical connector 14 and the second electrical connector 15. One end of the first electrical connector 14 and the second electrical connector 15 passes through the cover plate 11 of the accommodating box 10, and the other end of the first electrical connector 14 and the second electrical connector 15 is located in the accommodating box 10. By eliminating the use of electrical connecting wires, the second positive electrode 311 and the second negative electrode 312 on the circuit board 31 of the second energy storage module 30 are respectively directly fixed to one end of the first electrical connector 14 and the second electrical connector 15 in the accommodating box 10. In addition to reducing the impedance of the electrical connecting wires themselves and the front and rear contact points, the assembly steps can also be simplified to achieve the purpose of meeting the instantaneous large current charging and discharging requirements.

[0035] The present invention further includes a control module 32, which is electrically connected to the first energy storage module 20 and the second energy storage module 30, respectively. The control module 32 controls the charging action or discharging action between the first energy storage module 20 and the second energy storage module 30. The control module 32 can be an independent module, or can be integrated into the circuit board 31 of the second energy storage module 30, or integrated into the first energy storage module 20. The first energy storage module 20 can be a component such as a lithium iron battery, and the second energy storage module 30 can be a component such as a super capacitor group. In the embodiment, since the charging and discharging actions of the lithium iron battery to the super capacitor group are carried out under controllable conditions, the requirements for the electrical connection between the first energy storage module 20 and the second energy storage module 30 are relatively low. In the embodiment, the control module 32 is an independent module, and the first energy storage module 20 and the second energy storage module 30 are respectively connected via the control module 32 with a pair of electrical connecting wires (not shown), but the present invention is not limited thereto, and can achieve the requirements of meeting the charging and discharging efficiency, and has the benefits of simplifying the structure and assembly steps.

[0036] refer to Figure 1 The three-dimensional exploded view of the low impedance battery of the present invention is shown as well as Figure 2 The three-dimensional appearance diagram of the low-impedance battery of the present invention is shown in FIG. The first embodiment of the present invention provides a low-impedance battery 100, comprising: a container box 10, comprising a cover plate 11 and a box body 12, the box body 12 is a rectangular parallelepiped, but the present invention is not limited thereto, the top surface of the box body 12 has an opening for the cover plate 11 to match and cover, the box body 12 has a containing space inside, the first energy storage module 20 and the second energy storage module 30 are arranged in the box body 12 of the container box 10; the first energy storage module 20, which is used to store or supply electric energy, is arranged at the bottom layer of the box body 12 of the container box 10; the second energy storage module 30 is provided in the bottom layer of the box body 12 of the container box 10; The module 30 is used to store or supply a large current for a short time, and is arranged in the box body 12 of the accommodating box 10, and is placed above the first energy storage module 20. In another embodiment (not shown), the second energy storage module 30 and the first energy storage module 20 are placed side by side on both sides of the accommodating box 10, and are respectively fixed to the bottom layer in the box body 12 of the accommodating box 10. The first energy storage module 20 and the second energy storage module 30 are directly or indirectly electrically connected to each other. The second energy storage module 30 includes a circuit board 31, and the circuit board 31 has a second positive electrode 311 and a second negative electrode 312; the first The electrical connector 14 and the second electrical connector 15 penetrate the cover plate 11 located on the top surface of the box body 12 of the accommodating box 10. The cover plate 11 is used to match and cover the opening 13 of the box body 12 of the accommodating box 10. In this embodiment, the cover plate 11 is respectively provided with openings at positions corresponding to the first electrical connector 14 and the second electrical connector 15, so that the first electrical connector 14 and the second electrical connector 15 can be inserted into the openings. One end of the first electrical connector 14 and the second electrical connector 15 are located in the box body 12 of the accommodating box 10, wherein the first electrical connector 14 and the second electrical connector 15 in the box body 12 are connected to the first electrical connector 14 and the second electrical connector 15. One end of the first and second electrical connectors 14 and 15 can be screwed, snapped, welded, plugged or a combination thereof to be directly fixed to the second positive electrode 311 and the second negative electrode 312 on the circuit board 31 of the second energy storage module 30 in the box body 12 of the accommodating box 10, eliminating the need for electrical connection wires, so as to achieve the purpose of reducing the impedance between the first and second electrical connectors 14 and 15 and the second energy storage module 30; the other ends of the first and second electrical connectors 14 and 15 pass through the cover plate 11 of the box body 12 of the accommodating box 10, and can be electrically connected to an external power source (not shown) or an external load (not shown).

[0037] refer to Figure 1 The three-dimensional exploded view of the low impedance battery of the present invention is shown as well as Figure 2The three-dimensional appearance diagram of the low-impedance battery of the present invention is shown. In the first embodiment, the present invention provides a low-impedance battery 100, wherein the first energy storage module 20 is a lithium battery structure, and the lithium battery structure is composed of a plurality of lithium battery units connected in series and parallel. In this embodiment, the lithium battery unit is selected from a lithium ternary battery, a lithium iron battery or one of its groups; the second energy storage module 30 is a capacitor structure, and the capacitor structure is composed of a plurality of capacitor units connected in series and parallel. In this embodiment, the capacitor unit is selected from a capacitor, a super capacitor, a coil capacitor, an inductive capacitor or one of its groups.

[0038] refer to Figure 1 The three-dimensional exploded view of the low impedance battery of the present invention is shown as well as Figure 2 The three-dimensional low-impedance battery of the present invention is shown. In the first embodiment, the present invention provides a low-impedance battery 100, wherein, since the first weight of the first energy storage module 20 is greater than the second weight of the second energy storage module 30, the first energy storage module 20 is arranged on the bottom layer of the box body 12 of the accommodating box 10, and the surrounding area of ​​the first energy storage module 20 is surrounded by the accommodating space in the box body 12 of the accommodating box 10. In this embodiment, the first energy storage module 20 is fixed to the bottom layer of the box body 12 of the accommodating box 10 by foam, colloid, adhesive, gluing or a combination thereof, so as to achieve a support structure that does not require a large load. In order to support the weight of the first energy storage module 20, the second energy storage module 30 is placed above the first energy storage module 20. In another embodiment (not shown), the second energy storage module 30 and the first energy storage module 20 are placed side by side on both sides of the accommodating box 10 and are respectively fixed to the bottom layer in the box body 12 of the accommodating box 10. In this embodiment, a spacer 40 can be sandwiched between the first energy storage module 20 and the second energy storage module 30. One side of the spacer 40 is attached to the top of the first energy storage module 20, and the other side of the spacer 40 is supported below the second energy storage module 30. The first energy storage module 20 and the second energy storage module 30 are directly or indirectly electrically connected to each other.

[0039] refer to Figure 1 The three-dimensional exploded view of the low impedance battery of the present invention is shown as well as Figure 2The three-dimensional appearance diagram of the low-impedance battery of the present invention is shown. In the second embodiment, the present invention provides a low-impedance battery 100, which further includes a control module 32. The control module 32 is electrically connected to the first energy storage module 20 and the second energy storage module 30. In this embodiment, the control module 32 is an independent module, and the first energy storage module 20 and the second energy storage module 30 are electrically connected to the control module 32 through a pair of electrical connection lines (not shown). In another embodiment, the control module 32 is integrated in the circuit board 31 of the second energy storage module 30, and the first energy storage module 20 The control module 32 of the circuit board 31 of the second energy storage module 30 is electrically connected to the control module 32 through a pair of electrical connection lines (not shown), wherein one end of the pair of electrical connection lines (not shown) is electrically connected to the first positive electrode (not shown) and the first negative electrode (not shown) of the first energy storage module 20, respectively, and the other end of the pair of electrical connection lines (not shown) is electrically connected to a pair of second circuit contacts (not shown) of the control module 32, respectively. The control module 32 controls the charging action or discharging action between the first energy storage module 20 and the second energy storage module 30. The control module 32 detects the first energy storage module 20 and the first negative electrode (not shown) of the first energy storage module 20. 0 or at least one electrical characteristic of the second energy storage module 30 to adjust the output voltage and the output current. In this embodiment, in the charging operation between the first energy storage module 20 and the second energy storage module 30, an external power source (not shown) is used as the power source. The external power source (not shown) is respectively electrically connected to the first power connector 14 and the second power connector 15 to charge the first energy storage module 20 through the second energy storage module 30 to avoid the influence of high current charging of the first energy storage module 20. In this embodiment, between the first energy storage module 20 and the second energy storage module 30, In the discharge action, the first energy storage module 20 is used as the power source to charge the second energy storage module 30, or the control module 32 controls the first energy storage module 20 and the second energy storage module 30 so that the first energy storage module 20 and the second energy storage module 30 are used as power supply sources to supply the large amount of electricity required by the external load (not shown) for a long time under controllable conditions, so as to avoid the influence of large current discharge or over-discharge of the first energy storage module 20, so as to protect the first energy storage module 20 and extend the service life of the first energy storage module 20.

[0040] Finally, it is emphasized that the constituent components disclosed in the above-mentioned embodiments of the present invention are only for illustration and are not intended to limit the scope of the present case. Replacements or changes of other equivalent components should also be covered by the claims of the present case.

Claims

1. A low impedance battery, characterized in that: include: The containing box has a containing space inside; A first energy storage module, which is used to store or supply electrical energy and is disposed in the accommodation box; a second energy storage module, which is used to store or supply a large current for a short time, and is disposed in the accommodating box, wherein the first energy storage module and the second energy storage module are electrically connected to each other, and the second energy storage module at least includes a circuit board, and the circuit board has a second positive electrode and a second negative electrode; and One side of the accommodating box has a first electrical connector and a second electrical connector, one end of the first electrical connector and the second electrical connector passes through the accommodating box, the other end of the first electrical connector and the second electrical connector is located in the accommodating box, and the second positive electrode and the second negative electrode on the circuit board of the second energy storage module are respectively fixed to one end of the first electrical connector and the second electrical connector in the accommodating box.

2. The low impedance battery according to claim 1, characterized in that: The first energy storage module is a lithium battery structure.

3. The low impedance battery according to claim 2, characterized in that: The lithium battery structure is composed of a plurality of lithium battery units connected in series and in parallel, and the plurality of lithium battery units are selected from lithium ternary batteries, lithium iron batteries or one of the groups thereof.

4. The low impedance battery according to claim 1, characterized in that: The second energy storage module is a capacitor structure.

5. The low impedance battery according to claim 4, characterized in that: The capacitor structure is composed of a plurality of capacitor units connected in series and in parallel, and the plurality of capacitor units are selected from capacitors, super capacitors, coil capacitors, inductive capacitors or one of the groups thereof.

6. The low impedance battery according to claim 1, characterized in that: The second energy storage module is fixed to the first electrical connector and one end of the second electrical connector in the accommodating box by screw locking, snapping, welding, plugging or a combination thereof.

7. The low impedance battery according to claim 1, characterized in that: It also includes a control module, which controls the charging action or discharging action between the first energy storage module and the second energy storage module.

8. The low impedance battery according to claim 7, characterized in that: It also includes a pair of electrical connection wires, the first energy storage module has a first positive electrode and a first negative electrode, one end of the pair of electrical connection wires is electrically connected to the first positive electrode and the first negative electrode respectively, and the other end of the pair of electrical connection wires is electrically connected to a pair of second circuit contacts of the control module respectively.

9. The low impedance battery according to claim 1, characterized in that: The accommodating box includes a cover plate and a box body. At least one side of the box body is open to accommodate at least the first energy storage module and the second energy storage module.

10. The low impedance battery according to claim 1, characterized in that: A spacer is sandwiched between the first energy storage module and the second energy storage module, one side of the spacer is attached to the first energy storage module, and the other side of the spacer is supported by the second energy storage module.

11. The low impedance battery according to claim 1, characterized in that: The first energy storage module is fixed to the bottom layer in the accommodating box by means of foam, colloid, adhesion, gluing or a combination thereof.

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