CN214589154U - Battery power supply device - Google Patents
Battery power supply device Download PDFInfo
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- CN214589154U CN214589154U CN202022481064.1U CN202022481064U CN214589154U CN 214589154 U CN214589154 U CN 214589154U CN 202022481064 U CN202022481064 U CN 202022481064U CN 214589154 U CN214589154 U CN 214589154U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery power supply unit, include: the protective shell is internally provided with a pouring cavity and a wiring cavity; the encapsulation module is arranged in the encapsulation cavity and comprises a battery module, a high-voltage power supply positive relay unit electrically connected with the positive electrode of the battery module, a high-voltage power supply negative relay unit electrically connected with the negative electrode of the battery module and a battery monitoring unit, wherein the battery monitoring unit is electrically connected with the battery module through a battery information sampling circuit; the pouring module also comprises a relay driving unit, the signal input end of the relay driving unit is electrically connected with the signal output end of the battery monitoring unit, and the signal output end of the relay driving unit is respectively electrically connected with the control ends of the high-voltage power supply positive relay unit and the high-voltage power supply negative relay unit; a peripheral auxiliary device disposed outside the protective casing; a main fuse assembly disposed within the wiring cavity. Therefore, the explosion-proof performance and the protection level of the battery power supply for the underground coal mine can be effectively improved.
Description
Technical Field
The utility model relates to a battery power supply technical field, in particular to battery power supply unit.
Background
With the increasing demand for the capacity of storage batteries and the decreasing demand for the volume of various electronic and electrical devices used in explosive mixture environments, the current industrial production tends to select lithium ion batteries with higher energy density. However, the higher the energy density of the battery, the more factors affecting the safety of use, and therefore, the requirements for explosion protection of lithium ion batteries used in explosive mixture environments are also more stringent.
Disclosure of Invention
The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent.
Therefore, an object of the present invention is to provide a battery power supply device.
In order to achieve the above object, the present invention provides, in a first aspect, a battery power supply apparatus, including: the protective shell is internally provided with a pouring cavity and a wiring cavity connected with the pouring cavity; the encapsulation module is arranged in the encapsulation cavity and comprises a battery module, a high-voltage power supply positive relay unit electrically connected with the positive electrode of the battery module, a high-voltage power supply negative relay unit electrically connected with the negative electrode of the battery module and a battery monitoring unit, wherein the battery monitoring unit is electrically connected with the battery module through a battery information sampling circuit; the encapsulation module also comprises a relay driving unit, wherein the signal input end of the relay driving unit is electrically connected with the signal output end of the battery monitoring unit, and the signal output end of the relay driving unit is respectively electrically connected with the control ends of the high-voltage power supply positive relay unit and the high-voltage power supply negative relay unit; the peripheral auxiliary device is arranged outside the protective shell and comprises a dangerous gas monitoring system and a low-voltage auxiliary power supply, wherein the dangerous gas monitoring system is used for monitoring the concentration of a dangerous gas mixture, the dangerous gas monitoring system is electrically connected with the relay driving unit, and the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit; a main fuse assembly disposed within the wiring cavity.
The utility model discloses a battery power supply unit, through adopting the explosion-proof protection method and the multiple electrical protection mechanism that pouring protection and flame proof protection combined together, effectively improved the colliery in the pit with battery power's explosion-proof performance and protection rank, expanded by the dangerous industrial place like colliery in the pit of battery power supply or driven equipment.
In addition, according to the present invention, the battery power supply device can further have the following additional technical features:
the encapsulation module further comprises a low-voltage power supply positive relay unit and a low-voltage power supply negative relay unit which are respectively electrically connected with the battery monitoring unit, wherein the control ends of the low-voltage power supply positive relay unit and the low-voltage power supply negative relay unit are respectively electrically connected with the signal output end of the relay driving unit; the positive electrode of the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit through a first sealing lead device, a second sealing lead device and the low-voltage power supply positive relay unit, and the negative electrode of the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit through a third sealing lead device, a fourth sealing lead device and the low-voltage power supply negative relay unit; and the dangerous gas monitoring system is electrically connected with the relay driving unit through a fifth sealing lead device and a sixth sealing lead device respectively.
Specifically, the peripheral auxiliary device further comprises a battery control unit, and the battery control unit is electrically connected with the battery monitoring unit through a seventh sealing lead device and an eighth sealing lead device; and the hazardous gas monitoring system is electrically connected with the low-voltage auxiliary power supply and the battery control unit respectively.
Specifically, the encapsulation module further comprises a high-voltage positive fuse unit electrically connected with the high-voltage power supply positive relay unit, and a high-voltage negative fuse unit electrically connected with the high-voltage power supply negative relay unit.
Specifically, main fuse subassembly includes main positive fuse unit, main burden fuse unit and manual isolator, wherein, the one end of main positive fuse unit pass through ninth sealed lead device with the high-pressure positive fuse unit electricity is connected, the other end of main positive fuse unit with manual isolator electric connection, the one end of main burden fuse unit pass through tenth sealed lead device with high-pressure negative pole fuse unit electricity is connected, the other end of main burden fuse unit with manual isolator electricity is connected.
Specifically, the side surface and the bottom surface of the pouring module are connected with the protective shell; and a free space is reserved between the top surface of the pouring module and the protective shell.
Further, the battery power supply device further includes: the pressure relief device is arranged on the protective shell, one end of the pressure relief device is arranged on the outer side of the protective shell, and the other end of the pressure relief device is arranged in the free space.
Specifically, the high-voltage power supply positive relay unit, the high-voltage power supply negative relay unit, the low-voltage power supply positive relay unit and the low-voltage power supply negative relay unit are all composed of one or more relays.
Specifically, the main positive fuse unit, the main negative fuse unit, the high-voltage positive fuse unit, and the high-voltage negative fuse unit are each constituted by one or more fuses.
Specifically, the manual isolating switch is electrically connected with a load arranged outside the protective shell through an eleventh sealing lead device and a twelfth sealing lead device respectively.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block schematic diagram of a battery power supply apparatus according to a first embodiment of the present invention;
fig. 2 is a block diagram schematically illustrating a battery power supply apparatus according to a second embodiment of the present invention;
fig. 3 is a block schematic diagram of a battery power supply apparatus according to a third embodiment of the present invention;
fig. 4 is a block schematic diagram of a battery power supply apparatus according to a fourth embodiment of the present invention;
fig. 5 is a block schematic diagram of a battery power supply apparatus according to a fifth embodiment of the present invention; and
fig. 6 is a block diagram schematically illustrating a battery power supply device according to a sixth embodiment of the present invention.
Reference numerals: the protective housing 1, the encapsulation cavity 11, the encapsulation module 111, the battery module 1111, the high-voltage power supply positive relay unit 1112, the high-voltage power supply negative relay unit 1113, the battery monitoring unit 1114, the relay driving unit 1115, the low-voltage power supply positive relay unit 1116, the low-voltage power supply negative relay unit 1117, the high-voltage positive fuse unit 1118, the high-voltage negative fuse unit 1119, the first seal lead device 101, the second seal lead device 102, the third seal lead device 103, the fourth seal lead device 104, the fifth seal lead device 105, the sixth seal lead device 106, the seventh seal lead device 107, the eighth seal lead device 108, the ninth seal lead device 109, the tenth seal lead device 1010, the eleventh seal lead device 1011, the twelfth seal lead device, the wiring cavity 12, the main fuse assembly 121, the main positive fuse unit 1211, the, A main negative fuse unit 1212, a manual isolation switch 1213, a peripheral auxiliary device 2, a hazardous gas monitoring system 21, a low-voltage auxiliary power supply 22, a battery control unit 23, a load (or charging circuit) 3, and a pressure relief device 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The battery power supply device according to the embodiment of the present invention will be described below with reference to the drawings.
Fig. 1 is a block diagram of a battery power supply apparatus according to an embodiment of the present invention. In an embodiment of the present invention, the battery power supply device may be an explosion-proof lithium ion battery power supply device.
As shown in fig. 1, the battery power supply device according to the embodiment of the present invention may include: the fuse protector comprises a protective shell 1, an encapsulation cavity 11, a wiring cavity 12, an encapsulation module 111, a peripheral auxiliary device 2 and a main fuse assembly 121.
Wherein, the encapsulation chamber 11 and the wiring chamber 12 are both arranged in the protective housing 1, and the encapsulation chamber 11 is connected with the wiring chamber 12, namely the encapsulation chamber 11 and the wiring chamber 12 are tightly combined together. Wherein, the protective casing 1 can be an explosion-proof casing.
The encapsulation module 111 is arranged in the encapsulation cavity 11, the encapsulation module 111 comprises a battery module 1111, a high-voltage power supply positive relay unit 1112 electrically connected with the positive electrode of the battery module 1111, a high-voltage power supply negative relay unit 1113 electrically connected with the negative electrode of the battery module 1111, and a battery monitoring unit 1114, wherein the battery monitoring unit 1114 is electrically connected with the battery module 1111 through a battery information sampling line.
It should be understood that the battery module 1111 may be formed by connecting single lithium batteries in series or in parallel, where each single lithium battery has two electrodes 11, i.e., positive and negative electrodes, and when N single lithium batteries are disposed in the battery module 1111, N is 2 electrodes, and N is an integer greater than 1.
It should be noted that the encapsulation module 111 described in this embodiment adopts encapsulation protection, so that there is no direct contact between an ignition source such as a battery (e.g., a lithium ion battery) and the external environment, and the surrounding explosive mixture cannot be ignited under normal operation and authorized overload or authorized failure, thereby effectively preventing the battery from exploding.
In an embodiment of the present invention, the battery module 1111 may be electrically connected to a load (e.g., an external circuit) or a charging circuit through the high voltage power supply positive relay unit 1112 and the high voltage power supply negative relay unit 1113 to supply power to the load or charge the battery.
The encapsulation module 1111 further comprises a relay driving unit 1115, a signal input end of the relay driving unit 1115 is electrically connected with a signal output end of the battery monitoring unit 1114, and a signal output end of the relay driving unit 1115 is electrically connected with control ends of the high-voltage power supply positive relay unit 1112 and the high-voltage power supply negative relay unit 1113 respectively.
The peripheral auxiliary device 2 is disposed outside the protective housing 1, and the peripheral auxiliary device 2 may include a hazardous gas monitoring system 21 for monitoring the concentration of the hazardous gas mixture and a low-voltage auxiliary power supply 22, wherein the hazardous gas monitoring system 21 is electrically connected to the relay driving unit 1115, and the low-voltage auxiliary power supply 21 is electrically connected to the battery monitoring unit 1114.
It should be noted that the hazardous gas monitoring system 21 described in this embodiment may directly send a signal to the relay driving unit 1115 to control the on and off of a relay electrically connected to the relay driving unit 1115 through the relay driving unit 1115. The low voltage auxiliary power supply 21 described in this embodiment may power the battery monitoring unit 1114.
In the embodiment of the present invention, the battery monitoring unit 1114 can monitor the temperature and voltage of the battery module 1111 and all the single batteries constituting the battery module 1111 through the battery information sampling circuit in real time, and when the monitored temperature or voltage is abnormal, the relay driving unit 1115 can control the disconnection of all the relays in the high-voltage power supply positive relay unit 1112 and the high-voltage power supply negative relay unit 1113 to realize the isolation between the battery module 1111 and the load (e.g., external circuit) or the charging circuit.
In an embodiment of the present invention, as shown in fig. 2, the encapsulation module 111 may further include a low-voltage power supply positive relay unit 1116 and a low-voltage power supply negative relay unit 1117 electrically connected to the battery monitoring unit 1114, wherein control terminals of the low-voltage power supply positive relay unit 1116 and the low-voltage power supply negative relay unit 1117 are electrically connected to a signal output terminal of the relay driving unit 1115 respectively.
The high-voltage power supply positive relay unit 1112, the high-voltage power supply negative relay unit 1113, the low-voltage power supply positive relay unit 1116 and the low-voltage power supply negative relay unit 1117 may be respectively composed of one or more relays.
Further, the positive electrode of the low-voltage auxiliary power supply 22 is electrically connected to the battery monitoring unit 1114 through the first seal lead device 101, the second seal lead device 102, and the low-voltage power supply positive electrode relay unit 1116, and the negative electrode of the low-voltage auxiliary power supply 22 is electrically connected to the battery monitoring unit 1114 through the third seal lead device 103, the fourth seal lead device 104, and the low-voltage power supply negative electrode relay unit 1117. The hazardous gas monitoring system 21 is electrically connected to the relay driving unit 1115 through the fifth and sixth seal lead devices 105 and 106, respectively.
The main fuse assembly 121 is disposed within the wiring cavity 12.
In an embodiment of the present invention, as shown in fig. 3, the peripheral auxiliary device 2 may further include a battery control unit 23, and the battery control unit 23 is electrically connected to the battery monitoring unit 1114 through the seventh sealing lead device 107 and the eighth sealing lead device 108. The hazardous gas monitoring system 21 is electrically connected to a low-voltage auxiliary power supply 22 and a battery control unit 23, respectively.
Referring to fig. 1 to 3, the battery monitoring unit 1114 may be electrically connected to the battery module 1111 through a battery information sampling line to collect battery information, and may communicate with the battery control unit 23 through a CAN (Controller Area Network) bus. The relay driving unit 1115 may synthesize control signals of the battery monitoring unit 1114 and the hazardous gas monitoring system 21, and then control on and off of all relays in the high-voltage power supply positive relay unit 1112, the high-voltage power supply negative relay unit 1113, the low-voltage power supply positive relay unit 1116, and the low-voltage power supply negative relay unit 1117.
Specifically, during normal operation, battery control unit 23 accessible relay drive unit 1115 control the utility model discloses the on-off state of all relays among the battery power supply unit to this control battery module 1111 to the power supply of outside with cut off and the power supply of low pressure auxiliary power source 22 to battery monitoring unit 1114 with cut off.
When the hazardous gas monitoring system 21 detects that the concentration of the hazardous gas mixture in the surrounding environment exceeds the limit, the hazardous gas monitoring system 21 may send a signal to the battery control unit 23, and the battery control unit 23 controls all the relays of the high-voltage power supply positive relay unit 1112 and the high-voltage power supply negative relay unit 1113 to be turned off through the battery monitoring unit 1114 and the relay driving unit 1115, so as to isolate the battery module 1111 from a load (e.g., an external circuit) or a charging circuit.
When the hazardous gas monitoring system 21 detects that the concentration of the hazardous gas mixture in the surrounding environment exceeds the limit, the hazardous gas monitoring system 21 may further send a signal to the low-voltage auxiliary power supply 22, control the low-voltage auxiliary power supply 22 to cut off the output, so as to power off the battery monitoring unit 1114, thereby disconnecting all relays in the potting module 111 due to power loss of the control terminal, and further isolating the battery module 1111 from a load (e.g., an external circuit) or a charging circuit.
When the hazardous gas monitoring system 21 detects that the concentration of the hazardous gas mixture in the surrounding environment exceeds the limit, the hazardous gas monitoring system 21 may further send a signal to the relay driving unit 1115 to control the relays in the low-voltage power supply positive relay unit 1116 and the low-voltage power supply negative relay unit 1117 to be turned off through the relay driving unit 1115, so as to turn off the battery monitoring unit 1114, thereby turning off all relays in the potting module 111 due to power loss of the control terminal (e.g., turning off all relays in the high-voltage power supply positive relay unit 1112 and the high-voltage power supply negative relay unit 1113), and further achieving isolation of the battery module 1111 from a load (e.g., an external circuit) or a charging circuit.
When the hazardous gas monitoring system 21 detects that the concentration of the hazardous gas mixture in the surrounding environment exceeds the limit, the hazardous gas monitoring system 21 may further send a signal to the relay driving unit 1115 to directly control all relays in the high-voltage power supply positive relay unit 1112 and the high-voltage power supply negative relay unit 1113 to be turned off through the relay driving unit 1115, so as to isolate the battery module 1111 from a load (e.g., an external circuit) or a charging circuit.
Therefore, through the various anti-explosion protection methods and the electric protection mechanisms, the anti-explosion performance and the protection level of the battery power supply used in the underground coal mine are effectively improved, and the application range of equipment powered or driven by the battery power supply in dangerous industrial places with explosive mixture environments, such as the underground coal mine, is expanded.
In order to improve the explosion protection capability of the battery power supply device, in an embodiment of the present application, as shown in fig. 4, the encapsulation module 111 may further include a high-voltage positive fuse unit 1118 electrically connected to the high-voltage power supply positive relay unit 1112, and a high-voltage negative fuse unit 1119 electrically connected to the high-voltage power supply negative relay unit 1113. The high-voltage positive fuse unit 1118 and the high-voltage negative fuse unit 1119 may each be formed of one or more fuses.
Specifically, when the current discharged from the battery module 1111 is too large (e.g., short-circuited by an external load), the fuses of the high-voltage positive fuse unit 1118 and the high-voltage negative fuse unit 1119 will blow to isolate the battery module 1111 from the load (e.g., an external circuit).
To further enhance the explosion protection capability of the battery power supply apparatus, in one embodiment of the present application, as shown in fig. 5, the main fuse assembly 121 may include a main positive fuse unit 1211, a main negative fuse unit 1212, and a manual isolation switch 1213, wherein one end of the main positive fuse unit 1211 is electrically connected to the high-voltage positive fuse unit 1118 through a ninth sealing lead apparatus 109, the other end of the main positive fuse unit 1211 is electrically connected to the manual isolation switch 1213, one end of the main negative fuse unit 1212 is electrically connected to the high-voltage negative fuse unit 1119 through a tenth sealing lead apparatus 1010, and the other end of the main negative fuse unit 1212 is electrically connected to the manual isolation switch 1213. Here, the main positive fuse unit 1211 and the main negative fuse unit 1212 may each be configured of one or more fuses.
Further, the manual isolation switch 1213 may be electrically connected to the load (or charging circuit) 3 disposed outside the protective housing through an eleventh hermetic lead assembly 1011 and a twelfth hermetic lead assembly 1012, respectively. It should be noted that the first sealing lead device 101, the second sealing lead device 102, the third sealing lead device 103, the fourth sealing lead device 104, the fifth sealing lead device 105, the sixth sealing lead device 106, the seventh sealing lead device 107, the eighth sealing lead device 108, the ninth sealing lead device 109, the tenth sealing lead device 1010, the eleventh sealing lead device 1011, and the twelfth sealing lead device 1012 described in the above embodiments may be wall-through type terminals.
In the embodiment of the present invention, the operating current of the fuses in the main positive fuse unit 1211 and the main negative fuse unit 1212 is smaller than the operating current of the fuses in the high-voltage positive fuse unit 1118 and the high-voltage negative fuse unit 1119.
Specifically, when the current discharged from the battery module 1111 is too large (e.g., short-circuited by an external load), the fuses of the main positive fuse unit 1211 and the main negative fuse unit 1212 will blow first, thereby achieving isolation of the battery module 1111 from the load (or charging circuit) 3. If the main positive fuse unit 1211 and the main negative fuse unit 1212 fail, when the current discharged from the battery module 1111 is too large (for example, an external load is short-circuited), the fuses in the high-voltage positive fuse unit 1118 and the high-voltage negative fuse unit 1119 may be blown to isolate the battery module 1111 from the load (or the charging circuit) 3, so that the two sets of fuse units perform short-circuit protection, and when one set of fuse units fails, the other set of fuse units may still perform short-circuit protection.
In an embodiment of the present invention, as shown in fig. 6, the side and the bottom of the encapsulation module 111 may be connected to the protective casing 1, that is, the side and the bottom of the encapsulation module 111 are tightly combined with the protective casing 1, and there is a free space between the top of the encapsulation module 111 and the protective casing 1.
Further, the battery power supply device further comprises a pressure relief device 4 arranged on the protective shell 1, one end of the pressure relief device 4 is arranged on the outer side of the protective shell 1, and the other end of the pressure relief device 4 is arranged in the free space. It should be noted that explosion of the battery power supply generally means that the lithium battery has a failure such as thermal runaway, so that the internal pressure of the battery increases rapidly until the battery power supply is burst through the case covering the battery power supply.
Specifically, when a fault such as thermal runaway occurs in the battery module 1111, some gas will be generated in the encapsulation module 111, which causes a sudden increase in the pressure inside the encapsulation module 111, and when the encapsulation layer in the encapsulation module 111 is broken, the gas will be accumulated in the free space, and at this time, the gas can be discharged to the outside of the battery power supply through the pressure relief device 4, which can effectively prevent the explosion of the battery power supply caused by the accumulated excessive pressure inside the protective housing 1.
To sum up, the utility model discloses battery power supply unit, protective housing are inside to be equipped with the encapsulation chamber and to link to each other with the encapsulation chamber the wiring chamber, set up the encapsulation module among the encapsulation chamber, and the encapsulation module includes the battery module, with the anodal relay unit of the high-pressure power supply who is connected of battery module positive electricity, with the high-pressure power supply negative pole relay unit and the battery monitoring unit that battery module negative pole electricity is connected, and wherein, the battery monitoring unit passes through battery information sampling circuit and is connected with the battery module electricity. The pouring module further comprises a relay driving unit, a signal input end of the relay driving unit is electrically connected with a signal output end of the battery monitoring unit, a signal output end of the relay driving unit is electrically connected with control ends of the high-voltage power supply positive relay unit and the high-voltage power supply negative relay unit respectively, a peripheral auxiliary device arranged outside the protective shell comprises a hazardous gas monitoring system and a low-voltage auxiliary power supply, the hazardous gas monitoring system is used for monitoring the concentration of a hazardous gas mixture, the hazardous gas monitoring system is electrically connected with the relay driving unit, the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit, and a main fuse assembly arranged in the wiring cavity is arranged. Therefore, the explosion-proof protection method and the multiple electrical protection mechanism which combine the pouring protection and the explosion-proof protection are adopted, the explosion-proof performance and the protection level of the battery power supply for the underground coal mine are effectively improved, and the application range of equipment powered or driven by the battery power supply in dangerous industrial places with explosive mixture environments, such as the underground coal mine, is expanded.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A battery power supply apparatus, comprising:
the protective shell is internally provided with a pouring cavity and a wiring cavity connected with the pouring cavity;
the encapsulation module is arranged in the encapsulation cavity and comprises a battery module, a high-voltage power supply positive relay unit electrically connected with the positive electrode of the battery module, a high-voltage power supply negative relay unit electrically connected with the negative electrode of the battery module and a battery monitoring unit, wherein the battery monitoring unit is electrically connected with the battery module through a battery information sampling circuit;
the encapsulation module also comprises a relay driving unit, wherein the signal input end of the relay driving unit is electrically connected with the signal output end of the battery monitoring unit, and the signal output end of the relay driving unit is respectively electrically connected with the control ends of the high-voltage power supply positive relay unit and the high-voltage power supply negative relay unit;
the peripheral auxiliary device is arranged outside the protective shell and comprises a dangerous gas monitoring system and a low-voltage auxiliary power supply, wherein the dangerous gas monitoring system is used for monitoring the concentration of a dangerous gas mixture, the dangerous gas monitoring system is electrically connected with the relay driving unit, and the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit;
a main fuse assembly disposed within the wiring cavity.
2. The battery power supply device according to claim 1, wherein the encapsulation module further comprises a low-voltage power supply positive relay unit and a low-voltage power supply negative relay unit which are electrically connected with the battery monitoring unit respectively, wherein control terminals of the low-voltage power supply positive relay unit and the low-voltage power supply negative relay unit are electrically connected with a signal output terminal of the relay driving unit respectively; wherein the content of the first and second substances,
the positive electrode of the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit through a first sealing lead device, a second sealing lead device and the low-voltage power supply positive relay unit, and the negative electrode of the low-voltage auxiliary power supply is electrically connected with the battery monitoring unit through a third sealing lead device, a fourth sealing lead device and the low-voltage power supply negative relay unit;
and the dangerous gas monitoring system is electrically connected with the relay driving unit through a fifth sealing lead device and a sixth sealing lead device respectively.
3. The battery power supply unit of claim 2, wherein the peripheral auxiliary device further comprises a battery control unit electrically connected to the battery monitoring unit through a seventh seal lead device and an eighth seal lead device;
and the hazardous gas monitoring system is electrically connected with the low-voltage auxiliary power supply and the battery control unit respectively.
4. The battery power supply apparatus according to claim 1, wherein the encapsulation module further comprises a high-voltage positive fuse unit electrically connected to the high-voltage power supply positive relay unit, and a high-voltage negative fuse unit electrically connected to the high-voltage power supply negative relay unit.
5. The battery power supply apparatus of claim 4, wherein the main fuse assembly comprises a main positive fuse unit, a main negative fuse unit, and a manual disconnect switch, wherein one end of the main positive fuse unit is electrically connected to the high voltage positive fuse unit through a ninth seal lead device, the other end of the main positive fuse unit is electrically connected to the manual disconnect switch, one end of the main negative fuse unit is electrically connected to the high voltage negative fuse unit through a tenth seal lead device, and the other end of the main negative fuse unit is electrically connected to the manual disconnect switch.
6. The battery power supply apparatus according to claim 1, wherein the side surfaces and the bottom surface of the potting module are connected to the protective case;
and a free space is reserved between the top surface of the pouring module and the protective shell.
7. The battery power supply apparatus according to claim 6, further comprising:
the pressure relief device is arranged on the protective shell, one end of the pressure relief device is arranged on the outer side of the protective shell, and the other end of the pressure relief device is arranged in the free space.
8. The battery power supply apparatus according to claim 2 or 3, wherein the high-voltage-supply positive relay unit, the high-voltage-supply negative relay unit, the low-voltage-supply positive relay unit, and the low-voltage-supply negative relay unit are each constituted by one or more relays.
9. The battery power supply apparatus according to claim 5, wherein the main positive fuse unit, the main negative fuse unit, the high-voltage positive fuse unit, and the high-voltage negative fuse unit are each constituted by one or more fuses.
10. The battery power supply unit of claim 5, wherein the manual disconnect switch is electrically connected to a load or charging circuit disposed outside the protective enclosure via an eleventh and twelfth seal lead means, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481064.1U CN214589154U (en) | 2020-10-30 | 2020-10-30 | Battery power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481064.1U CN214589154U (en) | 2020-10-30 | 2020-10-30 | Battery power supply device |
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| CN214589154U true CN214589154U (en) | 2021-11-02 |
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| CN202022481064.1U Active CN214589154U (en) | 2020-10-30 | 2020-10-30 | Battery power supply device |
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| CN (1) | CN214589154U (en) |
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2020
- 2020-10-30 CN CN202022481064.1U patent/CN214589154U/en active Active
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