Voltage conversion system and battery

Abstract

The utility model relates to the technical field of batteries, and discloses a voltage conversion system and a battery, the voltage conversion system comprises a selection module and an output module, the selection module determines a first loop identifier according to acquired target demand information; the selection module calculates a target output voltage according to the first loop identifier; the output module outputs the target output voltage. Therefore, the first loop identifier can be determined based on the target demand information acquired by the selection module, so that the target output voltage of the corresponding loop is further calculated, the output module outputs the target output voltage, and the voltage conversion efficiency can be improved on the basis of improving the determination accuracy of the target output voltage; the safety risk in the voltage conversion process is reduced, meanwhile, the integration level of an application system is increased, and the system space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a voltage conversion system and a battery. Background Art

[0002] With the continuous development of new energy vehicles and intelligent network technology, more and more new energy vehicles are equipped with more and more intelligent electronic devices to meet the various needs of users and the quality of vehicle use.

[0003] With the increasing number of electronic devices in new energy vehicles, higher requirements are also put forward for the electrical architecture of new energy vehicles. The 12V electrical architecture defined for a long time has gradually failed to meet the current development needs of new energy vehicles, causing more and more new energy vehicles to be equipped with 48V electrical architecture. However, the existing 48V electrical architecture is mostly based on the original 12V electrical architecture. By adding a DC-DCBoost converter, the 12V voltage is boosted to 48V. However, it is found in practice that the DC-DCBoost converter of the above scheme will generate a lot of heat in the voltage conversion process, and there is energy loss, which makes the voltage conversion efficiency low, and there are certain safety hazards in actual use.

[0004] It can be seen that it is particularly important to propose a technical solution to improve voltage conversion efficiency. Utility Model Content

[0005] The utility model provides a voltage conversion system and a battery, which can be beneficial to improving voltage conversion efficiency.

[0006] In order to solve the above technical problems, the utility model discloses a voltage conversion system in the first aspect.

[0007] The voltage conversion system comprises a selection module and an output module, wherein:

[0008] The first end of the selection module is electrically connected to the first end of the output module;

[0009] The selection module is used to determine the first loop identifier according to the acquired target demand information;

[0010] The selection module is used to calculate the target output voltage according to the first loop identifier;

[0011] The output module is used to output the target output voltage.

[0012] As an optional implementation, in the first aspect of the utility model, the voltage conversion system further includes a judgment module, wherein:

[0013] The first end of the judging module is electrically connected to the first end of the selecting module, and the second end of the judging module is electrically connected to the first end of the output module;

[0014] The judgment module is used to judge whether the target output voltage meets the target demand condition corresponding to the target demand information according to the first loop identifier, and when it is judged that the target output voltage meets the target demand condition corresponding to the target demand information, the target output voltage is sent to the output module.

[0015] As an optional implementation, in the first aspect of the utility model, the selection module includes a first selection module and a second selection module, wherein:

[0016] The first end of the first selection module is electrically connected to the first end of the judgment module, and the second end of the first selection module is electrically connected to the first end of the second selection module;

[0017] The second selection module is used to determine a second loop identifier according to the acquired target demand information;

[0018] The first selection module, the user determines the first loop identifier according to the target demand information and the second loop identifier;

[0019] The first selection module is further configured to calculate the target output voltage according to the first loop identifier.

[0020] As an optional implementation, in the first aspect of the utility model, the second selection module includes a selection submodule and a judgment submodule, wherein:

[0021] The first end of the selection submodule is electrically connected to the second end of the first selection module, and the second end of the selection submodule is electrically connected to the first end of the determination submodule;

[0022] The selection submodule is used to determine the third loop identifier according to the acquired target demand information;

[0023] The determination submodule is further configured to determine the second loop identifier according to the third loop identifier and the target demand information.

[0024] As an optional implementation, in the first aspect of the utility model, the second selection module further includes a target battery pack, wherein:

[0025] The first end of the target battery group is electrically connected to the second end of the first selection module, and the second end of the target battery group is electrically connected to the first end of the selection submodule.

[0026] As an optional implementation, in the first aspect of the utility model, the target battery pack includes at least two first target cells and at least one second target cell, the selection submodule includes at least one first single-pole triple-throw switch, and each of the first single-pole triple-throw switches has a corresponding first target cell or the second target cell, wherein:

[0027] The first end of the first target cell is electrically connected to the second end of the first selection module, the second end of the first target cell is electrically connected to the first end of the selection submodule, and the first end of the second target cell is electrically connected to the first end of the selection submodule.

[0028] As an optional implementation, in the first aspect of the present utility model, the judgment submodule includes at least one judgment module, and each judgment module has a corresponding selection submodule.

[0029] As an optional implementation, in the first aspect of the utility model, each of the judgment modules includes at least one first AND gate module.

[0030] As an optional implementation, in the first aspect of the utility model, the judgment module includes at least two second AND gate modules, the first selection module includes at least two second single-pole triple-throw switches, and each second AND gate module has a corresponding second single-pole triple-throw switch.

[0031] The second aspect of the utility model discloses a battery, which includes a battery body, and is characterized in that the battery also includes the voltage conversion system described in the first aspect of the utility model.

[0032] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0033] In the utility model, the voltage conversion system includes a selection module and an output module. The selection module determines the first circuit identifier according to the target demand information obtained; the selection module calculates the target output voltage according to the first circuit identifier; and the output module outputs the target output voltage. It can be seen that the implementation of the utility model can determine the first circuit identifier based on the target demand information obtained by the selection module, thereby further calculating the target output voltage of the corresponding circuit, so that the output module outputs the target output voltage. On the basis of improving the accuracy of determining the target output voltage, the voltage conversion efficiency can be improved, and the safety risks in the voltage conversion process can be reduced. At the same time, it is conducive to increasing the integration of the application system and saving system space. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 It is a structural schematic diagram of a voltage conversion system disclosed in an embodiment of the utility model;

[0036] Figure 2 It is a structural schematic diagram of another voltage conversion system disclosed in an embodiment of the utility model;

[0037] Figure 3 It is a structural schematic diagram of another voltage conversion system disclosed in an embodiment of the utility model;

[0038] Figure 4 It is a structural schematic diagram of a voltage conversion system disclosed in an embodiment of the utility model. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that, unless otherwise clearly specified and limited, the term "electrical connection" in the specification and claims of the utility model and the above-mentioned drawings should be understood in a broad sense. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. In addition, the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] The utility model discloses a voltage conversion system and a battery, which can determine the first circuit identification based on the target demand information obtained by the selection module, so as to further calculate the target output voltage of the corresponding circuit, so that the output module can output the target output voltage, and can improve the voltage conversion efficiency and reduce the safety risk in the voltage conversion process on the basis of improving the accuracy of the target output voltage determination, and at the same time, it is conducive to increasing the integration of the application system and saving the system space. The following are detailed descriptions.

[0043] Embodiment 1

[0044] See also Figure 1 , Figure 1 Schematic diagram of a voltage conversion system disclosed in an embodiment of the utility model. Figure 1 The voltage conversion system described can be applied to batteries / battery management systems, can also be applied to smart devices that use batteries / battery management systems, and can also be applied to other smart devices that have a communication electrical connection / electromagnetic connection / wireless connection relationship with batteries, battery management systems, and at least one of the above-mentioned smart devices, wherein the above-mentioned smart devices and the above-mentioned other smart devices include but are not limited to one or more of cloud devices, edge computing devices, relay devices, base station devices, city management devices, and smart network devices, and the embodiments of the utility model are not limited thereto. Figure 1 As shown, the battery conversion system can select module 10 and output module 20, wherein:

[0045] A first end of the selection module 10 is electrically connected to a first end of the output module 20 .

[0046] The selection module 10 is used to determine the first loop identifier according to the acquired target demand information.

[0047] The selection module 10 is used to calculate the target output voltage according to the first loop identifier.

[0048] The output module 20 is used to output a target output voltage.

[0049] In the embodiment of the utility model, optionally, the second end of the output module is used to electrically connect an external device, and the external device may be the battery management system (BMS), specifically, Figure 4 The 48V voltage interface and the 12V voltage interface are shown.

[0050] Further optionally, the first loop identifier may be as follows: Figure 4 As shown, different closed states of S1 and S2 in the selection module generate code values, and the first loop identifier is further determined based on the generated code values. For example, for S1 or S2, different closed states of the three-throw switch correspond to 1, 0, and -1, respectively, thereby determining the above-mentioned first loop identifier, and the above-mentioned first loop identifier can be used to represent the information of a specific closed loop.

[0051] It can be seen that the implementation of the embodiment of the utility model can determine the first loop identifier based on the target demand information obtained by the selection module, so as to further calculate the target output voltage of the corresponding loop, so that the output module can output the target output voltage. On the basis of improving the accuracy of determining the target output voltage, it can improve the voltage conversion efficiency and reduce the safety risks in the voltage conversion process. At the same time, it is beneficial to increase the integration of the application system and save system space.

[0052] In the embodiment of the present utility model, as an optional implementation, Figure 2 As shown, the voltage conversion system may further include a judgment module 30, wherein:

[0053] A first end of the determination module 30 is electrically connected to a first end of the selection module 10 , and a second end of the determination module 30 is electrically connected to a first end of the output module 20 .

[0054] The judgment module 30 is used to judge whether the target output voltage meets the target demand condition corresponding to the target demand information according to the first loop identifier, and send the target output voltage to the output module 20 when it is judged that the target output voltage meets the target demand condition corresponding to the target demand information.

[0055] It can be seen that the implementation of this optional embodiment can further determine the first loop identifier based on the target demand information obtained by the selection module, and further calculate the target output voltage of the corresponding loop. The judgment module can judge whether the target output voltage meets the target demand condition corresponding to the target demand information according to the first loop identifier, thereby determining whether the target output voltage is sent to the output module. This can further reduce the safety risks in the voltage conversion process on the basis of improving the accuracy of determining the target output voltage and the voltage conversion efficiency, ensure the operating stability of the subsequent module devices of the output module, and help to further improve the operating stability of the application system.

[0056] In this optional embodiment, as an optional implementation, Figure 3 As shown, the above-mentioned selection module 10 includes a first selection module 101 and a second selection module 102, wherein:

[0057] A first end of the first selection module 101 is electrically connected to a first end of the determination module 30 , and a second end of the first selection module 101 is electrically connected to a first end of the second selection module 102 .

[0058] The second selection module 102 is used to determine a second loop identifier according to the acquired target demand information.

[0059] In the first selection module 101, the user determines the first loop identifier according to target demand information and the second loop identifier.

[0060] The first selection module 101 is further configured to calculate a target output voltage according to the first loop identifier.

[0061] It can be seen that the implementation of this optional embodiment can further subdivide the work functions of the selection module, improve the generation accuracy of each loop identifier in the selection module, and thus improve the accuracy of determining the target output voltage.

[0062] In this optional embodiment, as an optional implementation, Figure 4 As shown, the second selection module 102 includes a selection submodule 1021 and a judgment submodule 1022, wherein:

[0063] A first end of the selection submodule 1021 is electrically connected to a second end of the first selection module 101 , and a second end of the selection submodule 1021 is electrically connected to a first end of the determination submodule 1022 .

[0064] The selection submodule 1021 is used to determine the third loop identifier according to the acquired target demand information.

[0065] The determination submodule 1022 is further configured to determine the second loop identifier according to the third loop identifier and the target requirement information.

[0066] It can be seen that the implementation of this optional embodiment can further correct the respective loop identifiers through the judgment submodule on the basis of each loop generating its own loop identifier, thereby improving the accuracy of determining the respective loop identifiers, which is conducive to further improving the accuracy of determining the target output voltage.

[0067] In this optional embodiment, as another optional implementation, as Figure 4 As shown, the second selection module 102 further includes a target battery group 1023, wherein:

[0068] A first end of the target battery group 1023 is electrically connected to a second end of the first selection module 101 , and a second end of the target battery group 1023 is electrically connected to a first end of the selection submodule 1021 .

[0069] It can be seen that implementing this optional embodiment to embed the target battery pack into the second selection module can further ensure the generation stability of the target output voltage, which is beneficial to improving the stability of the voltage conversion system operation.

[0070] In an optional embodiment, if Figure 4 As shown, the target battery pack 1023 includes at least two first target cells E1 and at least one second target cell E2, and the selection submodule 1021 includes at least one first single-pole triple-throw switch S1, and each first single-pole triple-throw switch S1 has a corresponding first target cell E1 or a second target cell E2, wherein:

[0071] The first end of the first target cell E1 is electrically connected to the second end of the first selection module 101 , the second end of the first target cell E1 is electrically connected to the first end of the selection submodule 1021 , and the first end of the second target cell E2 is electrically connected to the first end of the selection submodule 1021 .

[0072] In this optional embodiment, optionally, the above-mentioned first target battery cell and second target battery cell may include but are not limited to at least one of ternary battery cells and lithium iron phosphate battery cells, and further optionally, may also include at least one of other types of battery cells used in the industry.

[0073] It can be seen that the implementation of this optional embodiment can further subdivide the target battery pack, which is beneficial to improving the stability of the output voltage of the target battery pack and preventing the failure of individual integrated battery cells, which may result in the inability to output the output voltage corresponding to the circuit identification, and is beneficial to further improving the generation stability of the target output voltage and the operating stability of the voltage conversion system, as well as the operating stability of the application equipment corresponding to the voltage conversion system.

[0074] In another optional embodiment, Figure 4As shown, the above-mentioned judgment submodule 1022 includes at least one judgment module 10221 , and each judgment module 10221 has a corresponding selection submodule 1021 .

[0075] It can be seen that the implementation of this optional embodiment can further subdivide the judgment submodule, improve the judgment submodule's ability to correct the third loop identifier and generate the second loop identifier with improved stability, prevent the failure of individual components of the judgment submodule, and prevent the inability to correct the corresponding loop identifier, which is beneficial to further improve the generation accuracy of the second loop identifier and improve the output accuracy of the target output voltage.

[0076] In yet another optional embodiment, Figure 4 As shown, each of the above-mentioned determination modules 10221 includes at least one first AND gate module A1.

[0077] It can be seen that the implementation of this optional embodiment can further limit the composition of the judgment module, and through at least one AND gate module, the correction accuracy and correction stability of the judgment module in correcting the corresponding loop identifier can be further improved, which is beneficial to improving the generation accuracy and generation stability of the second loop identifier.

[0078] In an optional embodiment, if Figure 4 As shown, the above-mentioned determination module 30 includes at least two second AND gate modules A2, the first selection module 101 includes at least two second single-pole triple-throw switches S2, and each second AND gate module A2 has a corresponding second single-pole triple-throw switch S2.

[0079] It can be seen that the implementation of this optional embodiment can improve the operability of the judgment module, the first selection module, the selection submodule and the judgment submodule through specific components, simplify the system complexity, reduce the system research and development cost and the system operation and maintenance cost, which is conducive to further improving the voltage conversion efficiency and the controllability of voltage conversion, and improving the safety of system operation.

[0080] Embodiment 2

[0081] The utility model embodiment discloses a battery, which includes a battery body, and the battery also includes the voltage conversion system described in the first embodiment.

[0082] The above is a detailed introduction to a voltage conversion system and a battery disclosed in an embodiment of the utility model. Specific embodiments are used in this article to illustrate the principle and implementation method of the utility model, but the above preferred embodiments are not used to limit the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea; at the same time, for general technical personnel in this field, based on the idea of ​​the utility model, without departing from the spirit and scope of the utility model, there will be changes in the specific implementation method and application scope. Therefore, the scope of protection of the utility model shall be based on the scope defined by the claims.

Claims

1. A voltage conversion system, characterized in that: The voltage conversion system comprises a selection module (10), an output module (20) and a judgment module (30), wherein: A first end of the judgment module (30) is electrically connected to a first end of the selection module (10), and a second end of the judgment module (30) is electrically connected to a first end of the output module (20); The selection module (10) is used to determine the first loop identifier according to the acquired target demand information; The selection module (10) is used to calculate a target output voltage according to the first loop identifier; The judgment module (30) is used to judge whether the target output voltage meets the target demand condition corresponding to the target demand information according to the first loop identifier, and when it is judged that the target output voltage meets the target demand condition corresponding to the target demand information, the target output voltage is sent to the output module (20); The output module (20) is used to output the target output voltage; Furthermore, the selection module (10) comprises a first selection module (101) and a second selection module (102), wherein: A first end of the first selection module (101) is electrically connected to a first end of the judgment module (30), and a second end of the first selection module (101) is electrically connected to a first end of the second selection module (102); The second selection module (102) is used to determine a second loop identifier according to the acquired target demand information; The first selection module (101) is used to determine the first loop identifier according to the target demand information and the second loop identifier; The first selection module (101) is further configured to calculate the target output voltage according to the first loop identifier; Furthermore, the second selection module (102) includes a selection submodule (1021) and a judgment submodule (1022), wherein: The first end of the selection submodule (1021) is electrically connected to the second end of the first selection module (101), and the second end of the selection submodule (1021) is electrically connected to the first end of the judgment submodule (1022); The selection submodule (1021) is used to determine the third loop identifier according to the acquired target demand information; The determination submodule (1022) is further configured to determine the second loop identifier according to the third loop identifier and the target demand information; Furthermore, the selection submodule (1021) includes at least one first single-pole three-throw switch (S1), the judgment submodule (1022) includes at least one judgment module (10221), each of the judgment modules (10221) has a corresponding selection submodule (1021), each of the judgment modules (10221) includes at least one first AND gate module (A1), the judgment module (30) includes at least two second AND gate modules (A2), the first selection module (101) includes at least two second single-pole three-throw switches (S2), and each of the second AND gate modules (A2) has a corresponding second single-pole three-throw switch (S2).

2. The voltage conversion system according to claim 1, characterized in that: The second selection module (102) further includes a target battery group (1023), wherein: The first end of the target battery group (1023) is electrically connected to the second end of the first selection module (101), and the second end of the target battery group (1023) is electrically connected to the first end of the selection submodule (1021).

3. The voltage conversion system according to claim 2, characterized in that: The target battery pack (1023) includes at least two first target battery cells (E1) and at least one second target battery cell (E2), and each of the first single-pole triple-throw switches (S1) has a corresponding first target battery cell (E1) or a corresponding second target battery cell (E2), wherein: The first end of the first target battery cell (E1) is electrically connected to the second end of the first selection module (101), the second end of the first target battery cell (E1) is electrically connected to the first end of the selection submodule (1021), and the first end of the second target battery cell (E2) is electrically connected to the first end of the selection submodule (1021).

4. A battery, comprising a battery body, characterized in that: The battery also includes a voltage conversion system as described in any one of claims 1-3.

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