Distribution box and battery pack with same

Abstract

The utility model discloses a power distribution box and a battery pack with the same, and the power distribution box comprises an MOSFET module which is used for the on-off of a circuit; and the electrical module is electrically connected with the MOSFET module. According to the distribution box provided by the utility model, the MOSFET module and the electrical module are arranged, and the MOSFET module is used for switching on and switching off a circuit, so that the distribution box can have better electrical safety performance when the circuit is switched on and switched off, the operation of the distribution box is more stable and reliable, the service life of the distribution box is longer, the size of the distribution box is smaller, and the space utilization rate of a battery pack is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution, in particular to a power distribution box and a battery pack having the same. Background Art

[0002] In the battery system of a vehicle, the high-voltage power distribution box in the battery pack is an important component unit of the battery system, which plays the role of battery energy distribution and electrical safety protection. In the high-voltage power distribution box, a contactor is usually provided to conduct and disconnect the circuit. At present, the contactor often sets mechanical contacts to conduct and disconnect the circuit. The mechanical contacts will make sounds when opening and closing, especially when the sound resonates with the battery box, it will generate greater noise, thus making the driving experience of the driver and passengers poor.

[0003] When the contacts of the contactor are arranged in the same direction as the driving direction, there is a situation of accidental closing of the contacts, and there are safety hazards such as electric shock to the driver and passengers. When the contactor cuts off the load with short-circuit large current, the contacts are prone to arc, ablation, jumping, etc., and then the contact resistance of the contacts becomes larger or adheres, causing the contactor to be damaged. Therefore, the electrical safety performance and operation stability of the high-voltage power distribution box are poor, and the service life is reduced. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a power distribution box which can have good electrical safety performance, operate more stably and have a longer service life.

[0005] The utility model also provides a battery pack having the above power distribution box.

[0006] The power distribution box according to the first aspect of the utility model includes: a MOSFET module for conducting and disconnecting the circuit; and an electrical module electrically connected to the MOSFET module.

[0007] By providing the MOSFET module and the electrical module in the power distribution box of the utility model, the MOSFET module is used for conducting and disconnecting the circuit, so that the power distribution box can have better electrical safety performance when conducting and disconnecting the circuit, thereby making the power distribution box operate more stably and reliably, having a longer service life, and making the power distribution box smaller in volume and the space utilization rate of the battery pack higher.

[0008] In some embodiments of the utility model, the MOSFET module and the electrical module are arranged along a first direction, and the power distribution box further includes a heat dissipation plate, and both the MOSFET module and the electrical module are arranged on the heat dissipation plate.

[0009] In an embodiment of the utility model, the MOSFET module is adhesively fixed to the heat dissipation plate through a heat-conducting adhesive.

[0010] In one embodiment of the present utility model, the distribution box further includes a support member, the support member is fixedly connected to the heat dissipation plate, and the electrical module is fixed on the support member.

[0011] In some examples of the present utility model, the support member is an insulating member.

[0012] In some examples of the present utility model, the support member includes: a support plate portion, the support plate portion is fixedly connected to the heat dissipation plate; a plurality of boss portions, the plurality of boss portions are connected to the support plate portion and protrude away from the support plate portion, and the plurality of boss portions and the support plate portion cooperate to define an installation space, and the electrical module is disposed in the installation space.

[0013] In some embodiments of the present utility model, the electrical module includes: a fuse, the fuse is electrically connected to the first power connection terminal of the MOSFET module; a current detector, the current detector is used to detect the current in the circuit, and the current detector and the fuse are arranged at intervals in a second direction.

[0014] In some embodiments of the present utility model, the distribution box further includes a first adapter row and a second adapter row, the first adapter row is electrically connected between the first power connection terminal and the fuse, the second adapter row is electrically connected to the second power connection terminal of the MOSFET module, and the current detector includes: a shunt, the shunt is electrically connected between the second adapter row and the second power connection terminal; and / or, a Hall sensor, the Hall sensor is sleeved on the second adapter row.

[0015] In some embodiments of the present utility model, the MOSFET module is provided with a first connector, and the electrical module is provided with a second connector.

[0016] The battery pack according to the second aspect of the present utility model includes the distribution box according to the first aspect of the present utility model.

[0017] According to the battery pack of the present utility model, by providing the distribution box of the first aspect above, the distribution box is provided with a MOSFET module and an electrical module, and the MOSFET module is used for turning on and off the circuit, so that the distribution box can have better electrical safety performance when turning on and off the circuit, thereby making the distribution box operate more stably and reliably, having a longer service life, and making the distribution box smaller in volume, and improving the space utilization rate of the battery pack.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0019] Figure 1 is a schematic diagram of a distribution box according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of another angle of the distribution box according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of yet another angle of the distribution box according to an embodiment of the present utility model;

[0022] Figure 4 is an exploded view of the distribution box according to an embodiment of the present utility model;

[0023] Figure 5 is an exploded view of another angle of the distribution box according to an embodiment of the present utility model;

[0024] Figure 6 is an exploded view of yet another angle of the distribution box according to an embodiment of the present utility model;

[0025] Figure 7 is a schematic diagram of the circuit of the distribution box according to an embodiment of the present utility model.

[0026] Reference numerals:

[0027] 10, MOSFET module; 11, first connector;

[0028] 20, electrical module; 21, fuse; 22, shunt; 23, Hall sensor; 24, second connector;

[0029] 30, first jumper row; 40, second jumper row;

[0030] 50, support member; 51, support plate portion; 52, boss portion;

[0031] 60, heat dissipation plate;

[0032] 100, distribution box. Detailed implementation manners

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0034] Next, reference is made to Figures 1-7 to describe the distribution box 100 according to the first aspect embodiment of the present utility model.

[0035] As Figures 1-7As shown in the figure, the distribution box 100 according to the first aspect embodiment of the present utility model includes: a MOSFET module 10 and an electrical module 20. The MOSFET module 10 is used for turning on and off the circuit. The electrical module 20 is electrically connected to the MOSFET module 10.

[0036] In this embodiment, the distribution box 100 includes a MOSFET module 10 and an electrical module 20. The MOSFET module 10 is used for turning on and off the circuit. Specifically, the full name of MOSFET is Metal-Oxide-Semiconductor Field-Effect Transistor, that is, metal oxide semiconductor field effect transistor. The MOSFET module 10 can be used in power conversion, power management, signal amplification, etc. When the MOSFET module 10 is used for turning on and off the circuit, the gate voltage is controlled by a driving circuit to turn on and off the circuit quickly and efficiently. The specific circuit arrangement in the MOSFET module 10 can be set according to actual needs to meet the usage requirements.

[0037] In this embodiment, the MOSFET module 10 is set to replace the original contactor, and the circuit is turned on and off by means of circuit control, which can well avoid situations such as circuit misconnection, arcing, short circuit, and structural damage during the circuit on-off process, greatly improving the electrical safety of the distribution box 100, enabling the distribution box 100 to operate more stably, reliably and efficiently, making the service life of the distribution box 100 longer, and the MOSFET module 10 can avoid generating a large sound when controlling the circuit on and off, so that the noise interference to the driver and passengers can be well reduced, and the driving experience of the driver and passengers is better.

[0038] It can be understood that when a contactor is set in the distribution box 100 to turn on and off the circuit, an arc extinguishing structure often needs to be set to improve the electrical safety during the operation of the contactor, resulting in a relatively large volume of the structure for turning on and off the circuit in the distribution box 100. In this embodiment, the MOSFET module 10 is set to turn on and off the circuit. The MOSFET module 10 has a small volume and can avoid the setting of an arc extinguishing structure, etc., so that the overall structure of the distribution box 100 can be more compact and small, reducing the occupied space of the distribution box 100 in the battery pack, and thus greatly improving the space utilization rate in the battery pack.

[0039] In this embodiment, the electrical module 20 is electrically connected to the MOSFET module 10, enabling the MOSFET module 10 to cooperate with the electrical module 20 for power distribution operations. The structure is simple, and the modular layout makes the distribution box 100 convenient for assembly and later maintenance.

[0040] According to the distribution box 100 of the embodiment of the present utility model, by providing the MOSFET module 10 and the electrical module 20, the MOSFET module 10 is used for the on-off of the circuit, so that the distribution box 100 can have better electrical safety performance when the circuit is turned on and off, thereby making the distribution box 100 operate more stably and reliably, with a longer service life, and making the distribution box 100 smaller in size, and improving the space utilization rate of the battery pack.

[0041] In some embodiments of the present utility model, as Figure 1 shown, the MOSFET module 10 and the electrical module 20 can be arranged along the first direction (such as Figure 1 the front-back direction shown). The distribution box 100 may further include a heat dissipation plate 60, and both the MOSFET module 10 and the electrical module 20 are disposed on the heat dissipation plate 60.

[0042] In this embodiment, arranging the MOSFET module 10 and the electrical module 20 along the first direction has a simple structure and is convenient for arrangement. Both the MOSFET module 10 and the electrical module 20 are arranged on the heat dissipation plate 60. The heat dissipation plate 60 can provide a good installation and arrangement position for the MOSFET module 10 and the electrical module 20, and is convenient for the heat dissipation of the MOSFET module 10 and the electrical module 20, so that the MOSFET module 10 and the electrical module 20 can operate more stably and reliably. In this embodiment, both the MOSFET module 10 and the electrical module 20 are arranged on the heat dissipation plate 60, which can play a role in strengthening the structure to a certain extent, making the overall structure of the distribution box 100 more stable, so that the distribution box 100 can better maintain a stable operating state during long-term use, and making the distribution box 100 have a longer service life.

[0043] In this embodiment, separating and arranging the MOSFET module 10 and the electrical module 20 in the first direction can facilitate the separate maintenance or replacement of the MOSFET module 10 and the electrical module 20, and can avoid the mutual interference between the MOSFET module 10 and the electrical module 20. For example, it can avoid the adverse impact of the heat generated during the operation of the MOSET module on the operating environment of the electrical components in the electrical module 20, so that the electrical module 20 and the MOSFET module 10 can cooperate better and operate more stably and reliably, making the distribution box 100 operate more stably.

[0044] In an embodiment of the present utility model, the MOSFET module 10 and the heat dissipation plate 60 can be adhesively fixed through a thermal conductive adhesive.

[0045] In this embodiment, the MOSFET module 10 and the heat sink 60 are bonded and fixed by thermal conductive adhesive. The structure is simple, the fixing is convenient and reliable. The thermal conductive adhesive can enhance the heat transfer efficiency between the heat sink 60 and the MOSFET module 10, enabling the MOSFET module 10 to obtain better heat dissipation effect, so that the MOSFET module 10 can operate more stably and reliably.

[0046] In an embodiment of the present utility model, as Figure 1 shown, the distribution box 100 may further include a support member 50. The support member 50 is fixedly connected to the heat sink 60, and the electrical module 20 is fixed on the support member 50.

[0047] In this embodiment, the support member 50 is provided. The support member 50 is fixedly connected to the heat sink 60, and the electrical module 20 is fixed on the support member 50. The structure is simple, enabling the electrical module 20 to be more conveniently and stably fixed to the heat sink 60 through the support member 50, so that the assembly of the electrical module 20 in the distribution box 100 is more firm and reliable.

[0048] In some examples of the present utility model, the support member 50 may be an insulating member. This can provide good electrical isolation for the electrical module 20, making the electrical safety of the distribution box 100 better. For example, the support member 50 may be a plastic part, a composite material part with insulating function, etc.

[0049] In some examples of the present utility model, as Figure 1 and Figure 4 shown, the support member 50 may include: a support plate portion 51 and a plurality of boss portions 52. The support plate portion 51 is fixedly connected to the heat sink 60; the plurality of boss portions 52 are connected to the support plate portion 51 and protrude away from the support plate portion 51. The plurality of boss portions 52 and the support plate portion 51 cooperate to define an installation space, and the electrical module 20 is disposed in the installation space.

[0050] In this embodiment, the support member 50 is composed of the support plate portion 51 and the plurality of boss portions 52. The structure is simple. The plurality of boss portions 52 and the support plate portion 51 cooperate to define an installation space, making it convenient and easy to assemble the electrical module 20 in the support member 50. The plurality of boss portions 52 can provide good support for the electrical module 20, enabling the electrical module 20 to be stably and reliably fixed on the support member 50. In this embodiment, the support plate portion 51 is fixedly connected to the heat sink 60. The support plate portion 51 and the heat sink 60 may have a relatively large mating surface, so that the support member 50 can be stably and reliably connected and fixed to the heat sink 60, and further the electrical module 20 can be stably and reliably fixed on the heat sink 60. Optionally, the support plate portion 51 and the heat sink 60 may be bonded and fixed by thermal conductive adhesive, or the support plate portion 51 may also be connected and fixed to the heat sink 60 by fasteners.

[0051] In some embodiments of the present utility model, as Figure 1 shown, the electrical module 20 may include: a fuse 21 and a current detector. The fuse 21 is electrically connected to the first power connection terminal of the MOSFET module 10; the current detector is used to detect the current in the circuit, and the current detector and the fuse 21 are arranged at intervals in the second direction (such as Figure 1 the left-right direction shown).

[0052] In this embodiment, the electrical module 20 includes a fuse 21. The fuse 21 is electrically connected to the first power connection terminal of the MOSFET module 10. When the circuit is overloaded or short-circuited, the fuse 21 can cut off the circuit in time to avoid damage to other electrical components in the circuit, thus playing a good role in circuit protection and enabling the entire circuit to operate safely.

[0053] In this embodiment, a current detector is provided to detect the current in the circuit, so as to meet the needs of overcurrent protection and current feedback control in the circuit, etc., and enable the distribution box 100 to operate stably. The current detector and the fuse 21 are arranged at intervals in the second direction, with a simple structure and convenient arrangement, which can facilitate the wiring of the MOSFET module 10, the fuse 21 and the current detector, and enable the MOSFET module 10 and the electrical module 20 to be conveniently connected and assembled. Preferably, the fuse 21 is an intelligent fuse.

[0054] In some embodiments of the present utility model, as Figure 1 shown, the distribution box 100 may further include a first adapter row 30 and a second adapter row 40. The first adapter row 30 is electrically connected between the first power connection terminal and the fuse 21, and the second adapter row 40 is electrically connected to the second power connection terminal of the MOSFET module 10. The current detector may include: a shunt 22 and / or a Hall sensor 23. The shunt 22 is electrically connected between the second adapter row 40 and the second power connection terminal; the Hall sensor 23 is sleeved on the second adapter row 40.

[0055] In this embodiment, the distribution box 100 is provided with a first adapter row 30 electrically connected to the fuse 21 and the first power connection terminal, and a second adapter row 40 electrically connected to the second power connection terminal of the MOSFET module 10, with a simple structure, so as to meet the need for electrical connection between the distribution box 100 and the battery in the battery pack.

[0056] Refer to Figure 1 and Figure 7As shown in the figure, the positive electrode of the battery in the battery pack can be connected to the fuse 21 and connected to the first power connection terminal of the MOSFET module 10 through the first adapter row 30. The negative electrode of the battery can be connected to the second power connection terminal of the MOSFET module 10 through the second adapter row 40, so that the distribution box 100 can perform power distribution operations and the battery can perform on-off operations on the circuit when charging and discharging. When the battery pack is charging, an external charging device can be connected to the positive and negative interfaces of the MOSFET module 10, so that current can enter the battery through the first adapter row 30 and the fuse 21 along the positive electrode of the battery. The current flows from the negative electrode of the battery along the second adapter row 40 through the MOSFET module 10 and flows back to the charging device from the negative interface, thus forming a current circulation loop, enabling the battery in the battery pack to stably perform the charging operation.

[0057] When the battery pack is discharging, the positive and negative interfaces of the MOSFET module 10 in the distribution box 100 are respectively connected to the positive and negative power connection ports of an external electrical device, so that the battery pack can supply power to the electrical device, and the MOSFET module 10 can control the on-off of the circuit. The battery mentioned in this embodiment can refer to a single battery cell or multiple battery cells, or it can refer to a battery module composed of multiple battery cells.

[0058] In this embodiment, the current detector includes a shunt 22 and / or a Hall sensor 23. The current detector can be set as the shunt 22, or the current detector can be set as the Hall sensor 23, or the current detector can be set to include the shunt 22 and the Hall sensor 23. Both the shunt 22 and the Hall sensor 23 can detect the current in the circuit and can be reasonably selected according to needs.

[0059] Since the detection principles of the shunt 22 and the Hall sensor 23 are different, when the current detector is set as the shunt 22, the shunt 22 is electrically connected between the second adapter row 40 and the second power connection terminal, which can well meet the usage requirements of the shunt 22. When the current detector is set as the Hall sensor 23, the Hall sensor 23 is sleeved on the second adapter row 40, which can well meet the usage requirements of the Hall sensor 23, so that the shunt 22 and / or the Hall sensor 23 can stably perform the current detection operation.

[0060] In some embodiments of the present utility model, as Figure 1 shown, the MOSFET module 10 can be provided with a first connector 11, and the electrical module 20 can be provided with a second connector 24.

[0061] In this embodiment, a first connector 11 is provided in the MOSFET module 10, and a second connector 24 is provided in the electrical module 20. The structure is simple, which can enable the MOSFET module 10 and the electrical module 20 to form single circuit interfaces respectively, so that the MOSFET module 10 and the electrical module 20 can be conveniently and electrically connected to the battery system, making it more convenient and easier to assemble the distribution box 100 into the battery system within the battery pack, and well meeting the usage and assembly requirements of the distribution box 100.

[0062] Exemplarily, with reference to Figure 1 as shown, the first connector 11 can be electrically connected to the cooling fin and the fan in the MOSFET module 10, so as to facilitate the electronic control system to regulate the cooling and heat dissipation of the MOSFET module 10. The second connector 24 can be electrically connected to the fuse 21 and the current detector, so as to facilitate the electronic control system to control the fuse 21 and obtain the detection data of the current detector in real time.

[0063] In an embodiment of the present invention, the distribution box 100 may further include a protective shell, and the protective shell covers the electrical module 20 and is connected to the heat dissipation plate 60. This embodiment provides a protective shell, which can play a good protective role for the electrical module 20, preventing the electrical components in the electrical module 20 from being exposed in the battery pack, enabling the electrical module 20 to be in a good operating environment, so that the electrical module 20 can operate stably, and further enabling the distribution box 100 to operate stably.

[0064] Next, with reference to Figures 1-7 describe the battery pack according to the second aspect embodiment of the present invention.

[0065] As Figures 1-7 shown, the battery pack according to the embodiment of the present invention includes the distribution box 100 according to the first aspect embodiment of the present invention.

[0066] Other components and operations of the battery pack according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0067] For the battery pack according to the embodiment of the present invention, by providing the distribution box 100 of the above first aspect, the distribution box 100 is provided with the MOSFET module 10 and the electrical module 20. The MOSFET module 10 is used for circuit on-off. When the distribution box 100 performs circuit on-off, it can have better electrical safety performance, so that the distribution box 100 operates more stably and reliably, has a longer service life, and makes the distribution box 100 smaller in volume, and the space utilization rate of the battery pack is higher.

[0068] Next, reference will be made to Figures 1-7 describe the battery pack according to a specific embodiment of the present invention.

[0069] As shown Figures 1-7 in the figure, the battery pack includes a power distribution box 100, which is installed inside the battery pack. Specifically, the battery pack may include a water-cooling plate, and the power distribution box 100 can be detachably fixed to the water-cooling plate through a heat-conducting pad or heat-conducting gel, etc.

[0070] The power distribution box 100 is a high-voltage power distribution box. The power distribution box 100 includes a heat dissipation plate 60, a MOSFET module 10, an electrical module 20, a support 50, a first adapter row 30, a second adapter row 40, a shunt 22, and a protective shell. The MOSFET module 10, the electrical module 20, the support 50, etc. are all arranged on the same side of the heat dissipation plate 60. The MOSFET module 10 can be a module structure with immersion cooling, so that the MOSFET module 10 can obtain a good heat dissipation effect. Further, the MOSFET module 10 can also be provided with heat dissipation structures such as a Peltier cooler and a fan to improve the heat dissipation effect. The MOSFET module 10 and the heat dissipation plate 60 are bonded and fixed through a heat-conducting adhesive. Specifically, the MOSFET module 10 can have a heat exchange plate, and the heat exchange plate and the heat dissipation plate 60 are bonded and fixed through a heat-conducting adhesive to obtain a better heat dissipation effect. The MOSFET module 10 has a first connector 11.

[0071] The electrical module 20 includes a fuse 21, a current detector, and a second connector 24. The support 50 is a support frame and includes a support plate portion 51 and four boss portions 52. The support plate portion 51 is fixedly connected to the heat dissipation plate 60 and is arranged at an interval from the MOSFET module 10 in the first direction. The four boss portions 52 protrude away from the support plate portion 51 and are arranged at intervals along the circumference of the support plate portion 51. The four boss portions 52 and the support plate portion 51 cooperate to define an installation space. The fuse 21 is an intelligent fuse, and the fuse 21 is arranged between two boss portions 52. The current detector may include a shunt 22 and a Hall sensor 23. The shunt 22 and the Hall sensor 23 are both arranged at an interval from the fuse 21 in the second direction. The Hall sensor 23 is sleeved on the second adapter row 40 and is arranged between the other two boss portions 52.

[0072] The fuse 21 is fixedly connected to the boss surfaces of the two boss portions 52. The fuse 21 is connected to the first power connection terminal of the MOSFET module 10 through the first adapter row 30. The first adapter row 30 can be a copper row. The second adapter row 40 can be a copper row and is fixed on the two boss portions 52 where the Hall sensor 23 is located. The shunt 22 is connected between the second power connection terminal of the MOSFET module 10 and the second adapter row 40. The second connector 24 is connected to and electrically connected to the fuse 21 and the current detector. The protective shell covers the electrical module 20 and the support 50.

[0073] When the distribution box 100 is assembled into the battery pack, the arrangement position and direction of the distribution box 100 can be set arbitrarily as needed. The MOSFET module 10 has good shock and vibration resistance performance, generates little noise during operation, and can well improve the driving experience of the driver and passengers. The MOSFET module 10 operates in cooperation with the fuse 21, with high safety and stable operation. When the distribution box 100 is maintained, the current detector and the fuse 21 can be conveniently repaired or replaced.

[0074] In this embodiment, the MOSFET module 10 and the electrical module 20 are arranged through the distribution box 100. The MOSFET module 10 is used for the on-off of the circuit, enabling the distribution box 100 to have better electrical safety performance when performing the on-off of the circuit, thereby making the distribution box 100 operate more stably and reliably, having a longer service life, and making the distribution box 100 smaller in volume, and improving the space utilization rate of the battery pack.

[0075] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0076] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0077] In the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0078] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0079] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A distribution box, characterized in that: include: A MOSFET module (10), wherein the MOSFET module (10) is used for switching a circuit on and off; An electrical module (20), the electrical module (20) being electrically connected to the MOSFET module (10), the electrical module (20) comprising: a fuse (21), the fuse (21) being electrically connected to a first electrical terminal of the MOSFET module (10); A current detector is used to detect the current in the circuit, and the current detector and the fuse (21) are arranged at an interval in the second direction.

2. The power distribution box according to claim 1, characterized in that: The MOSFET module (10) and the electrical module (20) are arranged along a first direction, and the power distribution box further comprises a heat sink (60), on which the MOSFET module (10) and the electrical module (20) are both arranged.

3. The power distribution box according to claim 2, characterized in that: The MOSFET module (10) and the heat sink (60) are bonded and fixed by means of heat-conducting adhesive.

4. The power distribution box according to claim 2, characterized in that: It also comprises a support member (50), wherein the support member (50) is fixedly connected to the heat dissipation plate (60), and the electrical module (20) is fixed on the support member (50).

5. The power distribution box according to claim 4, characterized in that: The support member (50) is an insulating member.

6. The power distribution box according to claim 4, characterized in that: The support member (50) comprises: A support plate portion (51), wherein the support plate portion (51) is fixedly connected to the heat dissipation plate (60); A plurality of boss portions (52), wherein the plurality of boss portions (52) are connected to the support plate portion (51) and protrude away from the support plate portion (51), and the plurality of boss portions (52) cooperate with the support plate portion (51) to define an installation space, and the electrical module (20) is arranged in the installation space.

7. The power distribution box according to claim 1, characterized in that: The device further comprises a first adapter bar (30) and a second adapter bar (40), wherein the first adapter bar (30) is electrically connected between the first power terminal and the fuse (21), and the second adapter bar (40) is electrically connected to the second power terminal of the MOSFET module (10), and the current detector comprises: A shunt (22), the shunt (22) being electrically connected between the second adapter bar (40) and the second power terminal; and / or, A Hall sensor (23), wherein the Hall sensor (23) is sleeved on the second adapter row (40).

8. The power distribution box according to any one of claims 1 to 6, characterized in that: The MOSFET module (10) is provided with a first connector (11), and the electrical module (20) is provided with a second connector (24).

9. A battery pack, characterized in that: Comprising a distribution box according to any one of claims 1-8.

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