Intelligent battery combining module and battery management system

Abstract

The utility model provides an intelligent battery combining module and a battery management system, which are characterized in that a shell is divided into an upper cavity and a lower cavity, and a wiring window is arranged on the top shell; each DC / DC module is arranged in the lower cavity; the power distribution module is arranged in the front space of the upper cavity; the bus connector bar and the battery connector bar are arranged in the upper cavity and located in the wiring window. And the comprehensive energy control module is arranged in the upper cavity and is electrically connected with the bus connector bar. The intelligent battery combining module is simple in structure, reliable in connection, easy to assemble and convenient to maintain, and automatic production and manufacturing are facilitated due to modularization.

Description

Technical Field

[0001] The utility model relates to the field of power management, in particular to an intelligent battery combining module and a battery management system. Background Art

[0002] In order to adapt to the continuous development of communication technology, the battery capacity in the base station needs to be appropriately expanded. Generally speaking, the base station will complete the battery expansion in the base station by merging multiple batteries; in actual applications, due to the different batches or manufacturer models of batteries purchased by the base station, it is often necessary to use a new battery combiner with a DC-DC unit to manage multiple groups of batteries of different models. However, this new type of battery combiner has many cable connections between the busbar and the battery, and on-site installation and wiring are not convenient. Some designs will connect the battery power cable directly to the circuit breaker inside the combiner. The on-site wiring of the circuit breaker will also lead to certain risks, such as unstable terminal crimping and other undesirable phenomena. In addition, the cross-sections of these cables are often relatively large, and poor cable arrangement will also occupy additional space inside the cabinet.

[0003] Therefore, how to reduce the volume of the battery combiner, simplify the structure, facilitate maintenance, and improve the integration has become a problem that needs to be solved urgently by those skilled in the art.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an intelligent battery combiner module and a battery management system to solve the problems of large size, complex structure, inconvenient maintenance and low integration of battery combiners in the prior art.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides an intelligent battery combining module, the intelligent battery combining module comprising:

[0007] A housing, a power distribution module, a bus positive terminal bar, a bus negative terminal bar, a battery positive terminal bar, a battery negative terminal bar, an integrated energy control module and N groups of DC / DC modules, wherein N is a natural number greater than or equal to 1;

[0008] The transverse partition in the shell divides the internal space of the shell into an upper cavity and a lower cavity, and an opening is provided on the top shell of the upper cavity close to the front side of the shell to form a wiring window;

[0009] Each of the DC / DC modules is disposed in the lower cavity and faces the front of the housing;

[0010] The power distribution module is arranged in the front space of the upper cavity and faces the front of the shell;

[0011] The bus positive wiring bar and the bus negative wiring bar are arranged in the upper cavity and located in the wiring window; wherein the bus positive wiring bar is electrically connected to the positive pole of the input end of each DC / DC module, and the bus negative wiring bar is electrically connected to the negative pole of the input end of the DC / DC module via the power distribution module;

[0012] The battery positive wiring row and the battery negative wiring row are arranged in the upper cavity and are located in the wiring window; wherein the first battery wiring row is electrically connected to the first output terminal of the corresponding DC / DC module via the power distribution module, and the second battery wiring row is electrically connected to the second output terminal of the corresponding DC / DC module; when the first battery wiring row is the battery positive wiring row and the second battery wiring row is the battery negative wiring row, the first output terminal of the DC / DC module is the positive electrode and the second output terminal is the negative electrode; when the first battery wiring row is the battery negative wiring row and the second battery wiring row is the battery positive wiring row, the first output terminal of the DC / DC module is the negative electrode and the second output terminal is the positive electrode;

[0013] The integrated energy control module is disposed in the upper cavity and is electrically connected to the bus positive wiring bar and the bus negative wiring bar.

[0014] Optionally, the wiring banks are arranged in a stepped manner, and the closer the wiring bank is to the front of the shell, the lower its position.

[0015] More optionally, the busbar positive wiring bar, the busbar negative wiring bar and the first battery wiring bar are configured as terminal wiring bars; and the second battery wiring bar is configured as a copper bar.

[0016] Optionally, the input end of each DC / DC module is arranged at the rear of each module, and the output end of each DC / DC module is arranged at the front or rear of each module.

[0017] Optionally, when N is greater than or equal to 2, the negative pole of the input end of each DC / DC module is respectively connected to the bus negative copper bar via the distribution module, and then electrically connected to the bus negative wiring bar via the bus negative copper bar; one or two battery positive wiring terminals in the battery positive wiring bar are respectively connected to the output positive pole of the same DC / DC module via the distribution module.

[0018] More optionally, the intelligent battery combining module also includes a current sampling device and a DC meter; the current sampling device is arranged in the rear space of the upper cavity, one end of which is electrically connected to the bus negative terminal block, and the other end is electrically connected to the bus negative copper bus, so as to sample the current flowing through the DC bus and transmit the sampling signal to the DC meter; the DC meter is arranged in the front space of the upper cavity or on the cabinet door of the upper cavity, and the cabinet door is located directly in front of the shell.

[0019] Optionally, when N is greater than or equal to 2, the negative pole of the input end of each DC / DC module is connected to the bus negative copper bar, and the bus negative copper bar is electrically connected to the bus negative terminal block via the power distribution module; one or two battery positive terminals in the battery positive terminal block are respectively connected to the output positive pole of the same DC / DC module via the power distribution module.

[0020] More optionally, the intelligent battery combining module also includes a current sampling device and a DC meter; the current sampling device is arranged in the rear space of the upper cavity, one end of which is electrically connected to the bus negative terminal block, and the other end is electrically connected to the bus negative copper bus via the power distribution module, so as to sample the current flowing through the DC bus and transmit the sampling signal to the DC meter; the DC meter is arranged in the front space of the upper cavity or on the cabinet door of the upper cavity, and the cabinet door is located directly in front of the shell.

[0021] More optionally, the current sampling device is implemented based on a shunt or a Hall sensor.

[0022] More optionally, the battery combining module also includes a bypass module, which is arranged in the rear space of the upper cavity, has one end electrically connected to the battery positive terminal block, and has the other end electrically connected to the positive input terminal of the corresponding DC / DC module.

[0023] More optionally, the intelligent battery combining module further includes a remote monitoring module, which is disposed in the rear space of the upper cavity and is electrically connected to the integrated energy control module.

[0024] More optionally, the intelligent battery combining module further comprises a display screen, wherein the display screen is embedded in the cabinet door of the upper cavity, and the display screen is electrically connected to the integrated energy control module.

[0025] More optionally, when N is equal to 4, the lower cavity is divided into a first cavity and a second cavity arranged upper and lower, and two groups of DC / DC modules are arranged in the first cavity and the second cavity, and the two groups of DC / DC modules are arranged side by side and both face the front of the shell.

[0026] More optionally, when N is equal to 2, two groups of DC / DC modules are arranged side by side in the lower cavity and both face the front of the shell.

[0027] In order to achieve the above-mentioned object and other related objects, the utility model also provides a battery management system, which at least includes:

[0028] A switching power supply, several batteries and the above-mentioned intelligent battery combining module;

[0029] The positive electrode of the output terminal of the switching power supply is electrically connected to the bus positive wiring bar of the intelligent battery combining module, and the negative electrode of the output terminal is electrically connected to the bus negative wiring bar of the intelligent battery combining module;

[0030] Each of the batteries is connected to a corresponding battery positive terminal block and a battery negative terminal block in the intelligent battery combining module;

[0031] The intelligent battery combining module controls the charging and discharging of each of the batteries.

[0032] As described above, the intelligent battery combining module and battery management system of the utility model have the following beneficial effects:

[0033] 1. The intelligent battery combining module of the utility model arranges the busbar wiring row and the battery wiring row in the front space of the upper cavity, and realizes the wiring with the outside through the wiring window, which simplifies the wiring complexity and facilitates maintenance.

[0034] 2. The battery positive wiring bar or the battery negative wiring bar of the intelligent battery combining module of the utility model adopts copper bars for parallel wiring, and also adopts copper bars to realize the switching of internal lines, which further simplifies the wiring complexity and facilitates maintenance.

[0035] 3. The intelligent battery combining module of the utility model adds expansion modules such as current sampling device, DC meter, bypass module, remote monitoring module, etc. on the basis of basic battery charge and discharge control, and has complete functions and high integration.

[0036] 4. The intelligent battery combining module of the utility model makes full use of the cabinet space, and arranges the DC / DC module, distribution module, terminal block, DC meter and other components that are easy for users to operate or replace in the front space, and arranges the current sampling device, bypass module, remote monitoring module and other components that do not need to be operated or replaced by users in the rear space, which can greatly reduce the volume of the intelligent battery combining module and is suitable for small and medium power new energy storage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Shown is a three-dimensional schematic diagram of the appearance of the intelligent battery combining module of the present invention.

[0038] Figure 2The figure shows a three-dimensional schematic diagram of the intelligent battery combining module of the present invention after removing the front panel and the top panel.

[0039] Figure 3 The figure shows a three-dimensional schematic diagram of the intelligent battery combining module of the present invention after removing the rear panel and the top panel.

[0040] Figure 4 Shown is a schematic diagram of the circuit structure of the intelligent battery combining module of the present utility model.

[0041] Figure 5 Shown is a schematic diagram of a connection method between the bus negative terminal block and the DC / DC module in the intelligent battery combining module of the utility model.

[0042] Figure 6 It is a schematic diagram showing another connection method between the negative busbar and the DC / DC module in the intelligent battery combining module of the present invention.

[0043] Component number description

[0044] 1 Intelligent battery combining module

[0045] 10 Housing

[0046] 101 Front Panel

[0047] 102 Rear panel

[0048] 103 Left Panel

[0049] 104 Right Panel

[0050] 105 Top Panel

[0051] 106 Bottom Panel

[0052] 100 Partition

[0053] 10a Upper cavity

[0054] 10b Lower cavity

[0055] 10c Wiring Window

[0056] 10b1 First Chamber

[0057] 10b2 Second Chamber

[0058] 11 Power distribution module

[0059] 12a Busbar positive terminal block

[0060] 12b Busbar negative terminal block

[0061] 12c Busbar positive copper bar

[0062] 12d busbar negative copper bar

[0063] 13a Battery positive terminal block

[0064] 13b Battery negative terminal block

[0065] 13c battery negative copper bar

[0066] 14 Integrated Energy Control Module

[0067] 15 DC / DC Module

[0068] 16a Current sampling device

[0069] 16b DC ammeter

[0070] 17 Bypass module

[0071] 18 Remote monitoring module

[0072] 19 Display

[0073] 2 Batteries

[0074] 3 Battery Combiner

[0075] 31 Power distribution

[0076] 32 Power circuit part DETAILED DESCRIPTION

[0077] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0078] See also Figure 1 to Figure 6 It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the utility model, and the drawings only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0079] like Figure 1 As shown, the utility model provides an intelligent battery combining module 1, and the intelligent battery combining module 1 includes:

[0080] The housing 10, the power distribution module 11, the bus positive terminal bar 12a, the bus negative terminal bar 12b, the battery positive terminal bar 13a, the battery negative terminal bar 13b, the integrated energy control module 14 and N groups of DC / DC modules 15, wherein N is a natural number greater than or equal to 1.

[0081] like Figure 1 and Figure 2 As shown, the shell 10 is used to accommodate the electronic components in the intelligent battery combining module 1; the transverse partition 100 in the shell 10 divides the internal space of the shell 10 into an upper cavity 10a and a lower cavity 10b, and an opening is provided on the top shell of the upper cavity 10a close to the front side of the shell to form a wiring window 10c.

[0082] Specifically, in this embodiment, the housing 10 includes six panels, namely a front panel 101 (i.e., a cabinet door), a rear panel 102, a left panel 103, a right panel 104, a top panel 105, and a bottom panel 106; an opening is provided on the top panel 105 near the front panel 101. As an example, the front panel 101 only covers the upper cavity 10a of the intelligent battery combining module 1; in actual use, the upper cavity 10a and the lower cavity 10b may also be covered at the same time. It should be noted that the shape of the housing 10 may also be set according to actual needs, and is not limited to this embodiment.

[0083] like Figure 2 As shown, the power distribution module 11 is disposed in the front space of the upper cavity 10 a and faces the front of the housing 10 .

[0084] Specifically, in this embodiment, the power distribution module 11 includes multiple circuit breakers or fuses, and the number of circuit breakers or fuses is set according to actual needs. In actual use, any device that can disconnect the circuit when the current is too large to achieve a protective function is applicable, including but not limited to air-type and ceramic-type devices, which are not listed here one by one.

[0085] like Figure 2 and Figure 4 As shown, the bus positive wiring bar 12a and the bus negative wiring bar 12b are arranged in the upper cavity 10a and located in the wiring window 10c. The bus positive wiring bar 12a is electrically connected to the positive pole of the input end of each DC / DC module 15, and the bus negative wiring bar 12b is electrically connected to the negative pole of the input end of the DC / DC module 15 via the power distribution module 11.

[0086] Specifically, Figure 2As shown, in this embodiment, the bus positive wiring bar 12a and the bus negative wiring bar 12b are arranged side by side, and are respectively connected to the external DC bus positive terminal and DC bus negative terminal through the wiring window 10c; in actual use, the two can be arranged up and down, not limited to this embodiment. In this example, the bus positive wiring bar 12a and the bus negative wiring bar 12b are arranged side by side with the distribution module 11, and are located in the front space of the upper cavity 10a.

[0087] Specifically, Figure 4 As shown, in this embodiment, the bus positive wiring bar 12a is electrically connected to the positive input terminal of each DC / DC module 15 through the bus positive copper bar 12c; the switching is achieved based on the bus positive copper bar 12c, thereby simplifying the wiring.

[0088] Specifically, Figure 4 and Figure 5 As shown, in one example, the bus negative wiring bar 12b is electrically connected to the negative input terminal of each DC / DC module 15 through the bus negative copper bar 12d and the distribution module 11 in turn; wherein, the bus negative copper bar 12d and the negative input terminal of each DC / DC module 15 are protected by circuit breakers K1, k2, K3, and K4; the circuit breaker can also be replaced by a fuse, and a suitable type of protection device can be selected according to factors such as current size and cost. At this time, as another implementation method of the utility model, the intelligent battery combining module 1 also includes a current sampling device 16a and a DC meter 16b. Figure 3 to Figure 6 As shown, the current sampling device 16a is arranged in the rear space of the upper cavity 10a, one end of which is electrically connected to the bus negative wiring bar 12b, and the other end of which is electrically connected to the bus negative copper bar 12d, to sample the current flowing through the DC bus, and transmit the sampling signal to the DC meter 16b; as an example, the current sampling device 16a is implemented based on a shunt or a Hall sensor. When a shunt is used, the shunt is connected in series between the bus negative wiring bar 12b and the bus negative copper bar 12d, and the output end is connected to the DC meter 16b; when a Hall sensor is used, the bus negative wiring bar 12b and the bus negative copper bar 12d are connected by a wire, and the Hall sensor is sleeved on the periphery of the wire, senses the current size through the magnetic field, and transmits the sensed result to the DC meter 16b. The DC meter 16b is arranged in the front space of the upper cavity 10a, side by side with the power distribution module 11; or, the DC meter 16b is arranged on the cabinet door of the upper cavity 10a (such as Figure 2 As shown), wherein the cabinet door is located directly in front of the housing 10; the DC meter 16b is used to display the current value collected by the current sampling device 16a, and can also be connected to the bus positive terminal block 12a and the bus negative terminal block 12b to sample and display the voltage value.

[0089] Specifically, Figure 6As shown, in another example, the bus negative wiring bar 12b is electrically connected to the negative pole of the input end of each DC / DC module 15 after passing through the power distribution module 11 and the bus negative copper bar 12d in turn; wherein, the bus negative wiring bar 12b and the bus negative copper bar 12d are protected by a fuse K9; the fuse can also be replaced by a circuit breaker, and a suitable type of protection device can be selected according to factors such as current size and cost. At this time, if the intelligent battery combining module 1 also includes a current sampling device 16a and a DC meter 16b, one end of the current sampling device 16a is electrically connected to the bus negative wiring bar 12b, and the other end is electrically connected to the bus negative copper bar 12d via the power distribution module 11, which will not be described one by one here.

[0090] like Figure 2 As shown, the battery positive terminal bar 13a and the battery negative terminal bar 13b are disposed in the upper cavity 10a and located in the wiring window 10c.

[0091] Specifically, in this embodiment, the battery positive wiring row 13a and the battery negative wiring row 13b are arranged vertically and connected to the positive terminal and negative terminal of each external battery through the wiring window 10c respectively; in actual use, the two can be arranged side by side, not limited to this embodiment. Figure 4 As shown, as an example, the battery positive terminal block 13a is electrically connected to the positive pole of the output end of the corresponding DC / DC module 15 via the power distribution module 11 (in this example, circuit breakers K5, K6, K7, and K8 are used between the battery terminal and the DC / DC module 15 for protection), and the battery negative terminal block 13b is electrically connected to the negative pole of the output end of the corresponding DC / DC module 15; in order to facilitate wiring, the battery positive terminal block 13a is set as a terminal block, and a one-to-one connection between the external battery positive pole and the internal device is realized through each terminal; the battery negative terminal block 13b is set as a copper busbar, and the connection between the external battery negative pole and the internal device is realized after the copper busbar is converged; further, the battery negative terminal block 13b is transferred to the negative pole of the output end of each DC / DC module 15 through the battery negative copper busbar 13c. As another example, the negative battery terminal 13b is electrically connected to the negative output terminal of the corresponding DC / DC module 15 via the power distribution module 11, and the positive battery terminal 13a is electrically connected to the positive output terminal of the corresponding DC / DC module 15; in order to facilitate wiring, the positive battery terminal 13a is set as a copper busbar, and the negative battery terminal 13b is set as a terminal block; similarly, the positive battery terminal can be switched through the positive battery busbar. In the above, the negative battery terminals are connected in parallel with copper busbars, and the positive battery terminals are connected to the corresponding DC / DC modules 15 through the power distribution module 11; or the positive battery terminals are connected in parallel with copper busbars, and the negative battery terminals are connected to the corresponding DC / DC modules 15 through the power distribution module 11, which can greatly simplify the wiring complexity.

[0092] Specifically, in this embodiment, Figure 4As shown, as an example, each battery positive terminal in the battery positive wiring row 13a is connected to the positive output terminal of the corresponding DC / DC module 15 via the power distribution module 11 (circuit breakers K5, K6, K7, K8 in this example), and one battery is connected to one DC / DC module 15. Figure 5 and Figure 6 As shown, in another example, two battery positive terminals in the battery positive wiring row 13a are respectively connected to the positive output terminal of the same DC / DC module 15 via the power distribution module 11, wherein the first group of batteries (two) are respectively connected to the output terminal of a group of DC / DC modules (DC / DC1) via circuit breakers K51 and K52, the second group of batteries (two) are respectively connected to the output terminal of a group of DC / DC modules (DC / DC2) via circuit breakers K61 and K62, the third group of batteries (two) are respectively connected to the output terminal of a group of DC / DC modules (DC / DC3) via circuit breakers K71 and K72, and the fourth group of batteries (two) are respectively connected to the output terminal of a group of DC / DC modules (DC / DC4) via circuit breakers K81 and K82. In actual use, it can also be set that the battery negative terminals are respectively connected to the negative output terminals of the corresponding DC / DC modules 15 via the power distribution module 11, and three or more batteries can also be set and connected to the same DC / DC module, which is not limited to this embodiment.

[0093] Specifically, in order to facilitate wiring, each wiring bank is arranged in a stepped manner, and the closer the wiring bank is to the front of the housing, the lower its position. Figure 2 As shown, in this example, the battery negative terminal block 13b, the busbar terminal block (i.e., the busbar positive terminal block 12a and the busbar negative terminal block 12b) and the battery positive terminal block 13a are arranged in a stepped manner from bottom to top and from front to back, and the external wire can be introduced from the top of the corresponding terminal block through the wiring window 10c, and the internal wire or copper busbar is led out through the rear space or bottom space of the corresponding terminal block. In actual use, each terminal block can also be stacked up and down, or arranged side by side, as long as the wiring can be achieved, and is not limited to this embodiment.

[0094] like Figure 2 and Figure 4 As shown, the integrated energy control module 14 is disposed in the upper cavity 10a and is electrically connected to the bus positive wiring bar 12a and the bus negative wiring bar 12b.

[0095] Specifically, in this embodiment, the integrated energy control module 14 is disposed below the power distribution module 11 and is located in the front space of the upper cavity 10a. The integrated energy control module 14 is connected to the bus positive wiring bar 12a through the bus positive copper bar 12c and is electrically connected to the bus negative wiring bar 12b through the bus negative copper bar 12d to obtain power.

[0096] like Figure 2As shown, each DC / DC module 15 is disposed in the lower cavity 10 b and faces the front of the housing 10 .

[0097] Specifically, Figure 3 As shown, the input end of the DC / DC module 15 is arranged behind each module, such as Figure 2 As shown, the output end of the DC / DC module 15 is arranged in front of each module. In other examples, the output end of the DC / DC module 15 can also be arranged at the back of each module to reduce the wiring in the front and achieve the effect of hot plugging.

[0098] Specifically, in one example, the number of DC / DC modules 15 is set to 4 groups, which are respectively recorded as DC / DC1, DC / DC2, DC / DC3, and DC / DC4. Figure 2 As shown, the lower cavity 10b is divided into a first cavity 10b1 and a second cavity 10b2 arranged in the upper and lower parts, and two groups of DC / DC modules 15 are arranged in the first cavity 10b1 and the second cavity 10b2, and the two groups of DC / DC modules 15 are arranged side by side and both face the front of the housing 10. In one example, the number of DC / DC modules 15 is set to 3 groups, the first and second groups of DC / DC modules 15 are arranged side by side, and the third group of DC / DC modules 15 is stacked on the first and second groups of DC / DC modules 15. In another example, the number of DC / DC modules 15 is set to 2 groups, and the two groups of DC / DC modules 15 are arranged side by side in the lower cavity 10b, and both face the front of the housing 10; at this time, due to the reduction in the number of DC / DC modules 15, the space of the lower cavity 10b can also be reduced, that is, only the first cavity 10b1 is retained, and the second cavity 10b2 is removed, so as to further reduce the volume of the entire intelligent battery combining module 1. Of course, the number of DC / DC modules 15 may be greater than 4 groups, depending on actual needs.

[0099] Specifically, Figure 5 and Figure 6 As shown, in order to expand the current, each group of DC / DC modules 15 can be obtained by connecting two or more DC / DC units in parallel. As an example, two 35A DC / DC units are connected in parallel to obtain a group of DC / DC modules 15, which will not be described in detail here.

[0100] like Figure 3 and Figure 4As shown, as another implementation of the present invention, the battery combining module 1 also includes a bypass module 17. The bypass module 17 is arranged in the rear space of the upper cavity 10a, one end of which is electrically connected to the battery positive wiring row 13a, and the other end is electrically connected to the positive input terminal of the corresponding DC / DC module 15. The bypass module 17 is used to protect the DC / DC module 15. As an example, it includes a diode and a switch connected in series. The anode of the diode is connected to the battery positive wiring row 13a, and the cathode is connected to the positive input terminal of the DC / DC module 15 via the switch. In actual use, any circuit structure that can protect the DC / DC module 15 is suitable for the present invention. Furthermore, a heat sink and a fan are also attached to the bypass module 17 for heat dissipation to ensure the normal operation of the bypass module 17

[0101] like Figure 3 and Figure 4 As shown, as another implementation of the present invention, the intelligent battery combining module 1 further includes a remote monitoring module 18, which is disposed in the rear space of the upper cavity 10a and is electrically connected to the integrated energy control module 14. The remote monitoring module 18 communicates with an external remote host computer APP to achieve remote monitoring of the intelligent battery combining module 1.

[0102] like Figure 1 , Figure 3 and Figure 4 As shown, as another implementation method of the utility model, the intelligent battery combining module 1 also includes a display screen 19; the display screen 19 is embedded in the cabinet door of the upper cavity 10a, and the display screen 19 is electrically connected to the integrated energy control module 14 for displaying the status information of the intelligent battery combining module 1.

[0103] The intelligent battery combining module of the utility model reduces the volume and facilitates maintenance through reasonable device arrangement and wiring methods; at the same time, it adds expansion modules such as DC meters and remote monitoring modules, and has comprehensive functions and high integration; it is suitable for small and medium power new energy storage scenarios. The intelligent battery combining module 1 of the utility model adopts an integrated energy control module 14 to control the DC / DC module 15 to charge or discharge the battery, realizing intelligent battery management for energy storage, and can uniformly manage the charging and discharging of existing backup batteries in communication base stations.

[0104] The utility model also provides a battery management system, which at least includes: a switching power supply, a plurality of batteries and the intelligent battery combining module 1 of the utility model.

[0105] The positive output terminal of the switching power supply is electrically connected to the bus positive wiring bar 12a of the intelligent battery combining module 1, and the negative output terminal is electrically connected to the bus negative wiring bar 12b of the intelligent battery combining module 1. The positive terminal of the user load is electrically connected to the bus positive wiring bar 12a, and the negative terminal of the user load is electrically connected to the bus negative wiring bar 12b; the switching power supply and the intelligent battery combining module 1 (battery) supply power to the user load through the DC bus, and can also realize the exchange of electric energy through the DC bus, which will not be described in detail here.

[0106] Each battery 2 is connected to the corresponding battery positive wiring row 13a and battery negative wiring row 13b in the intelligent battery combining module 1, such as Figure 5 shown.

[0107] In summary, the utility model provides an intelligent battery combining module and a battery management system, comprising: a shell, a power distribution module, a bus positive wiring bar, a bus negative wiring bar, a battery positive wiring bar, a battery negative wiring bar, an integrated energy control module and N groups of DC / DC modules, wherein N is a natural number greater than or equal to 1; the transverse partition in the shell divides the internal space of the shell into an upper cavity and a lower cavity, and an opening is provided on the top shell of the upper cavity close to the front side of the shell to form a wiring window; each of the DC / DC modules is arranged in the lower cavity and faces the front of the shell; the power distribution module is arranged in the upper cavity and faces the front of the shell; the bus positive wiring bar and the bus negative wiring bar are arranged in the upper cavity and are located in the wiring window; wherein the bus positive wiring bar is electrically connected to the positive pole of the input end of each of the DC / DC modules, and the bus The negative terminal block is electrically connected to the negative pole of the input terminal of the DC / DC module via the power distribution module; the battery positive terminal block and the battery negative terminal block are arranged in the upper cavity and are located in the wiring window; wherein, the first battery terminal block is electrically connected to the first output terminal of the corresponding DC / DC module via the power distribution module, and the second battery terminal block is electrically connected to the second output terminal of the corresponding DC / DC module; when the first battery terminal block is the battery positive terminal block and the second battery terminal block is the battery negative terminal block, the first output terminal of the DC / DC module is the positive pole and the second output terminal is the negative pole; when the first battery terminal block is the battery negative terminal block and the second battery terminal block is the battery positive terminal block, the first output terminal of the DC / DC module is the negative pole and the second output terminal is the positive pole; the integrated energy control module is arranged in the upper cavity and is electrically connected to the bus positive terminal block and the bus negative terminal block. The intelligent battery combining module of the utility model has a simple structure, reliable connection, easy assembly, convenient maintenance, and modularization facilitates automated production and manufacturing. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0108] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An intelligent battery combining module, characterized in that: The intelligent battery combining module comprises: A housing, a power distribution module, a bus positive terminal bar, a bus negative terminal bar, a battery positive terminal bar, a battery negative terminal bar, an integrated energy control module and N groups of DC / DC modules, wherein N is a natural number greater than or equal to 1; The transverse partition in the shell divides the internal space of the shell into an upper cavity and a lower cavity, and an opening is provided on the top shell of the upper cavity close to the front side of the shell to form a wiring window; Each of the DC / DC modules is disposed in the lower cavity and faces the front of the housing; The power distribution module is arranged in the front space of the upper cavity and faces the front of the shell; The bus positive wiring bar and the bus negative wiring bar are arranged in the upper cavity and located in the wiring window; wherein the bus positive wiring bar is electrically connected to the positive pole of the input end of each DC / DC module, and the bus negative wiring bar is electrically connected to the negative pole of the input end of the DC / DC module via the power distribution module; The battery positive wiring row and the battery negative wiring row are arranged in the upper cavity and are located in the wiring window; wherein the first battery wiring row is electrically connected to the first output terminal of the corresponding DC / DC module via the power distribution module, and the second battery wiring row is electrically connected to the second output terminal of the corresponding DC / DC module; when the first battery wiring row is the battery positive wiring row and the second battery wiring row is the battery negative wiring row, the first output terminal of the DC / DC module is the positive electrode and the second output terminal is the negative electrode; when the first battery wiring row is the battery negative wiring row and the second battery wiring row is the battery positive wiring row, the first output terminal of the DC / DC module is the negative electrode and the second output terminal is the positive electrode; The integrated energy control module is disposed in the upper cavity and is electrically connected to the bus positive wiring bar and the bus negative wiring bar.

2. The intelligent battery combining module according to claim 1, characterized in that: The wiring banks are arranged in a stepped manner, and the closer the wiring bank is to the front of the shell, the lower its position is.

3. The intelligent battery combining module according to claim 2, characterized in that: The busbar positive wiring bar, the busbar negative wiring bar and the first battery wiring bar are configured as wiring terminal bars; and the second battery wiring bar is configured as a copper bar.

4. The intelligent battery combining module according to claim 1, characterized in that: The input end of each DC / DC module is arranged at the back of each module, and the output end of each DC / DC module is arranged at the front or back of each module.

5. The intelligent battery combining module according to claim 1, characterized in that: When N is greater than or equal to 2, the negative pole of the input end of each DC / DC module is connected to the bus negative copper bar via the power distribution module, and then electrically connected to the bus negative wiring bar via the bus negative copper bar; one or two battery positive wiring terminals in the battery positive wiring bar are connected to the output positive pole of the same DC / DC module via the power distribution module.

6. The intelligent battery combining module according to claim 5, characterized in that: The intelligent battery combining module also includes a current sampling device and a DC meter; the current sampling device is arranged in the rear space of the upper cavity, one end of which is electrically connected to the bus negative terminal block, and the other end is electrically connected to the bus negative copper bus, so as to sample the current flowing through the DC bus and transmit the sampling signal to the DC meter; the DC meter is arranged in the front space of the upper cavity or on the cabinet door of the upper cavity, and the cabinet door is located directly in front of the shell.

7. The intelligent battery combining module according to claim 1, characterized in that: When N is greater than or equal to 2, the negative electrode of the input end of each DC / DC module is connected to the bus negative copper bar, and the bus negative copper bar is electrically connected to the bus negative wiring bar via the power distribution module; one or two battery positive wiring terminals in the battery positive wiring bar are respectively connected to the output positive electrode of the same DC / DC module via the power distribution module.

8. The intelligent battery combining module according to claim 7, characterized in that: The intelligent battery combining module also includes a current sampling device and a DC meter; the current sampling device is arranged in the rear space of the upper cavity, one end of which is electrically connected to the bus negative terminal block, and the other end is electrically connected to the bus negative copper bus via the power distribution module, so as to sample the current flowing through the DC bus and transmit the sampling signal to the DC meter; the DC meter is arranged in the front space of the upper cavity or on the cabinet door of the upper cavity, and the cabinet door is located directly in front of the shell.

9. The intelligent battery combining module according to claim 6 or 8, characterized in that: The current sampling device is implemented based on a shunt or a Hall sensor.

10. The intelligent battery combining module according to any one of claims 1 to 8, characterized in that: The battery combining module also includes a bypass module, which is arranged in the rear space of the upper cavity, one end of which is electrically connected to the battery positive wiring bar, and the other end of which is electrically connected to the positive input terminal of the corresponding DC / DC module.

11. The intelligent battery combining module according to any one of claims 1 to 8, characterized in that: The intelligent battery combining module also includes a remote monitoring module, which is arranged in the rear space of the upper cavity and is electrically connected to the integrated energy control module.

12. The intelligent battery combining module according to any one of claims 1 to 8, characterized in that: The intelligent battery combining module also includes a display screen, which is embedded in the cabinet door of the upper cavity and is electrically connected to the integrated energy control module.

13. The intelligent battery combining module according to any one of claims 1 to 8, characterized in that: When N is equal to 4, the lower cavity is divided into a first cavity and a second cavity which are arranged upper and lower. Two groups of DC / DC modules are arranged in the first cavity and the second cavity. The two groups of DC / DC modules are arranged side by side and both face the front of the shell.

14. The intelligent battery combining module according to any one of claims 1 to 8, characterized in that: When N is equal to 2, two groups of DC / DC modules are arranged side by side in the lower cavity and both face the front of the housing.

15. A battery management system, characterized in that: The battery management system at least comprises: A switching power supply, a plurality of batteries and an intelligent battery combining module as claimed in any one of claims 1 to 14; The positive electrode of the output terminal of the switching power supply is electrically connected to the bus positive wiring bar of the intelligent battery combining module, and the negative electrode of the output terminal is electrically connected to the bus negative wiring bar of the intelligent battery combining module; Each of the batteries is connected to a corresponding battery positive terminal block and a battery negative terminal block in the intelligent battery combining module; The intelligent battery combining module controls the charging and discharging of each of the batteries.

Images