Integrated battery distribution box and battery pack

Abstract

The utility model relates to the technical field of battery packs, in particular to an integrated battery distribution box and a battery pack. The battery distribution box comprises a shell and a power supply loop arranged in the shell, the shell comprises a lower shell and an upper shell buckled on the lower shell, a groove body used for placing the power supply loop is arranged in the lower shell, and a plurality of interfaces used for leading out signals of the power supply loop are arranged on the upper shell. Through reasonable spatial arrangement, the power supply loop is integrally integrated in the battery distribution box, the problem that wiring harnesses for connecting the battery distribution box and the battery cells are disordered is solved, meanwhile, the upper shell is provided with a plurality of interfaces used for leading out signals of the power supply loop, the signals in the battery distribution box can be directly led out, and the reliability of the battery distribution box is improved. Therefore, the space distribution of the battery distribution box and the battery pack is optimized, and the space utilization rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack technical field, concretely relates to integrated battery distribution box and battery pack. BACKGROUND

[0002] The battery distribution box is located inside the battery pack and is used for distributing the energy of the battery pack to different electric appliances, connecting and cutting off the circuit, and protecting the battery and the vehicle-mounted electric appliance in the case of short circuit / overload abnormality. In order to meet the increasing demand for the whole vehicle charging and discharging power, the size of the electric device in the battery distribution box is also increasing, which makes the volume of the BDU continuously increase. At the same time, in order to improve the endurance of the whole vehicle, the space in the battery pack is used as much as possible to place the battery cell, and the battery pack capacity is improved. This leads to the further compression of the design space of the BDU and its related connecting parts.

[0003] Due to the increase of voltage and current demand, the size of the electric device is also increasing accordingly, but the space that can be reserved for the BDU and other parts in the battery pack is limited, making the wiring of the BDU more complex. The space compression and too many wire harnesses interlaced increase the difficulty of wire harness arrangement, which easily leads to the disorder of wire harness arrangement and a large number of wire harnesses occupying the limited space in the battery pack. SUMMARY

[0004] The utility model aims at providing an integrated battery distribution box to solve the above technical problems.

[0005] The utility model also aims at providing a battery pack to solve the above technical problems.

[0006] The technical problems solved by the utility model can be realized by adopting the following technical solutions:

[0007] An integrated battery distribution box comprises a shell and a power supply circuit arranged in the shell, the shell comprises a lower shell and an upper shell buckled on the lower shell, a groove for placing the power supply circuit is arranged in the lower shell, a plurality of interfaces for leading out signals of the power supply circuit are arranged on the upper shell, and the power supply circuit comprises,

[0008] A main positive fuse, a first end of the main positive fuse is connected with a positive input voltage;

[0009] A main positive contactor, a second end of the main positive fuse is connected with the main positive contactor, and the main positive contactor controllably outputs a vehicle-mounted positive voltage and a motor positive voltage;

[0010] A main negative fuse, a first end of the main negative fuse is connected with a negative input voltage, and a second end of the main negative fuse outputs a vehicle-mounted negative voltage and a motor negative voltage.

[0011] Preferably, the power supply circuit further comprises,

[0012] a pre-charge contactor, controllably connected to the second end of the main positive fuse;

[0013] a pre-charge positive contactor, controllably outputting a pre-charge positive voltage, connected to the pre-charge contactor through a pre-charge resistor;

[0014] a pre-charge positive bus bar, connected to the pre-charge positive contactor, at least a part of the pre-charge positive bus bar extending out of the lower housing to output the pre-charge positive voltage;

[0015] a pre-charge negative contactor, the first end of the pre-charge negative contactor connected to the second end of the main negative fuse, the second end of the pre-charge negative contactor controllably outputting a pre-charge negative voltage;

[0016] a pre-charge negative bus bar, connected to the second end of the pre-charge negative contactor, at least a part of the pre-charge negative bus bar extending out of the lower housing to output the pre-charge negative voltage.

[0017] Preferably, the power supply circuit further comprises,

[0018] a first temperature sensor, connected to the first end of the main positive fuse;

[0019] a second temperature sensor, connected to the main positive contactor;

[0020] a third temperature sensor, connected to the second end of the pre-charge negative contactor.

[0021] Preferably, the power supply circuit further comprises,

[0022] a battery positive bus bar, connected to the first end of the main positive fuse, at least a part of the battery positive bus bar extending out of the lower housing to connect an external battery pack to the positive input voltage;

[0023] a battery negative bus bar, connected to the first end of the main negative fuse, at least a part of the battery negative bus bar extending out of the lower housing to connect the battery pack to the negative input voltage;

[0024] the power supply circuit further comprises,

[0025] a first current sensor, connected to the battery positive bus bar;

[0026] a second current sensor, connected to the battery negative bus bar.

[0027] Preferably, the power supply circuit further comprises a plurality of auxiliary fuses, each connected to the main positive contactor, the auxiliary fuses comprising,

[0028] A first auxiliary fuse, a first end of which is connected to the main positive contactor and the other end of which outputs a vehicle-mounted slow charging positive voltage;

[0029] A second auxiliary fuse, a first end of which is connected to the main positive contactor and the other end of which outputs a direct alternating conversion positive voltage;

[0030] A third auxiliary fuse, a first end of which is connected to the main positive contactor and the other end of which outputs a direct current conversion positive voltage;

[0031] A fourth auxiliary fuse, a first end of which is connected to the main positive contactor and the other end of which outputs a vehicle-mounted air conditioner heating positive voltage;

[0032] A fifth auxiliary fuse, a first end of which is connected to the main positive contactor and the other end of which outputs a vehicle-mounted air conditioner refrigeration positive voltage.

[0033] Preferably, the device further comprises,

[0034] A motor positive bus bar connected to the main positive contactor, at least a part of the motor positive bus bar extending out of the lower shell to lead out the motor positive voltage;

[0035] A motor negative bus bar connected to a second end of the main negative fuse, at least a part of the motor negative bus bar extending out of the lower shell to lead out the motor negative voltage.

[0036] Preferably, the device further comprises,

[0037] A first voltage plug-in connected to voltage sampling points of the power supply circuit, a plug-in port of the first voltage plug-in being exposed to the upper shell, the voltage sampling points including a first sampling point arranged at a first end of the main positive fuse, a second sampling point arranged at an output end of the charging positive contactor, and a third sampling point arranged at a second end of the main negative fuse.

[0038] A second voltage plug-in connected to the first temperature sensor, the second temperature sensor, the third temperature sensor, and the pre-charging contactor, a plug-in port of the second voltage plug-in being exposed to the upper shell to lead out a temperature signal or access a pre-charging control signal;

[0039] A charging positive plug-in connected to the positive input voltage;

[0040] A charging negative plug-in connected to the negative input voltage.

[0041] Preferably, the interface at least includes,

[0042] A charging contactor interface connected to the charging positive contactor and the charging negative contactor;

[0043] A main positive fuse interface connected to the main positive fuse;

[0044] a main negative fuse interface connected to the main negative fuse;

[0045] a main positive contactor interface connected to the main positive contactor.

[0046] Preferably, the upper shell is provided with a fixing point for placing a battery management system, and the fixing point comprises a first fixing point provided on the upper shell and a second fixing point and a third fixing point located on a side of the first fixing point away from the interface.

[0047] A battery pack is internally provided with the integrated battery distribution box.

[0048] The utility model discloses beneficial effects: because adopt above technical scheme, the utility model discloses through reasonable space arrangement, reduces the problem of the wire harness confusion of battery distribution box and electric core connection, and the upper shell is provided with a plurality of interfaces for leading out the signal of power supply circuit simultaneously, can directly lead out the signal in the battery distribution box, further save signal adapter wire harness, thereby optimizing the space distribution of battery distribution box and battery pack, improve space utilization. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is the internal structure main view of integrated battery distribution box in the utility model embodiment;

[0050] Figure 2 It is main positive circuit structure schematic diagram in the utility model embodiment;

[0051] Figure 3 It is main negative circuit structure schematic diagram in the utility model embodiment;

[0052] Figure 4 It is the main view of integrated battery distribution box in the utility model embodiment;

[0053] Figure 5 It is the structure schematic diagram of integrated battery distribution box in the utility model embodiment;

[0054] Figure 6 It is the explosion drawing of integrated battery distribution box in the utility model embodiment;

[0055] In the attached diagram: 101, lower housing; 102, upper housing; 103, main positive fuse; 104, main positive contactor; 105, main negative fuse; 106, pre-charge contactor; 107, pre-charge resistor; 108, charging positive contactor; 109, charging negative contactor; 110, charging positive bus; 111, charging negative bus; 112, first temperature sensor; 113, second temperature sensor; 114, third temperature sensor; 115, battery positive bus; 116, battery negative bus; 117, first current sensor; 118, second current sensor; 12, auxiliary fuse; 119, first auxiliary fuse; 120, the... 121. Second Auxiliary Fuse; 122. Third Auxiliary Fuse; 123. Fourth Auxiliary Fuse; 124. Fifth Auxiliary Fuse; 125. Motor Positive Busbar; 126. Motor Negative Busbar; 127. First Voltage Plug; 128. Second Voltage Plug; 129. Charging Positive Plug; 130. Charging Negative Plug; 131. Charging Contactor Interface; 132. Main Positive Fuse Interface; 133. Main Negative Fuse Interface; 134. Second Current Sensor Interface; 135. Fixing Point; 136. First Wiring Harness Fixing Structure; 137. Second Wiring Harness Fixing Structure; 138. Protective Cover; 139. Fuse Protective Cover. Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0057] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0058] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0059] An integrated battery distribution box, such as Figures 1 to 6 As shown, the device includes a housing and a power supply circuit disposed within the housing. The housing includes a lower housing 101 and an upper housing 102 fastened to the lower housing 101. The lower housing 101 has a slot for housing the power supply circuit, and the upper housing 102 has several interfaces for leading out signals from the power supply circuit. The power supply circuit includes...

[0060] The main positive fuse 103 is connected to the positive input voltage B+ at its first terminal.

[0061] The main positive contactor 104 is connected with the second end of the main positive fuse 103, and can controllably output the vehicle-mounted positive voltage and the motor positive voltage DU+.

[0062] The main negative fuse 105 is connected with the negative input voltage B- at the first end, and outputs the vehicle-mounted negative voltage and the motor negative voltage DU- at the second end.

[0063] Specifically, the power supply circuit is integrally arranged in the battery distribution box (BDU) by reasonable space arrangement, so that the problem of exposed wiring harness between the battery distribution box and the battery cell is reduced, and meanwhile, the upper shell 102 is provided with a plurality of interfaces for leading out signals of the power supply circuit, so that the signals in the battery distribution box can be directly led out, and the signal adapter wiring harness in the prior art is further saved.

[0064] In a preferred embodiment, as shown in Figure 2 , Figure 3 The power supply circuit further comprises,

[0065] The pre-charging contactor 106 is controllably connected with the second end of the main positive fuse 103.

[0066] The charging positive contactor 108 is connected with the pre-charging contactor 106 through a pre-charging resistor 107, and can controllably output the charging positive voltage DCFC+.

[0067] The charging positive busbar 110 is connected with the charging positive contactor 108, and at least a part of the charging positive busbar 110 extends out of the lower shell 101 to lead out the charging positive voltage DCFC+.

[0068] The charging negative contactor 109 is connected with the second end of the main negative fuse 105 at the first end, and can controllably output the charging negative voltage DCFC- at the second end.

[0069] The charging negative busbar 111 is connected with the second end of the charging negative contactor 109, and at least a part of the charging negative busbar 111 extends out of the lower shell 101 to lead out the charging negative voltage DCFC-.

[0070] Specifically, the power supply circuit comprises a main positive circuit and a main negative circuit, the main positive circuit comprises a first current sensor 117, a main positive fuse 103 and a main positive contactor 104.

[0071] The main positive fuse 103 and the two-in-one main positive contactor 104 are connected through a copper busbar to form a series circuit, and a pre-charging circuit is added to form the main positive circuit.

[0072] The main negative circuit comprises a second current sensor 118 and a main negative fuse 105 to form the main negative circuit.

[0073] The main positive contactor 104 adopts a customized two-in-one contactor, and the two-in-one contactor can effectively reduce the device volume, reduce the number of fixing bolts, and reduce the assembly complexity. The first contactor single body and the second contactor single body of the main positive contactor 104 are connected in parallel to form the connection of the main positive control function; wherein the vehicle-mounted positive voltage is led out through the first contactor single body, the motor positive voltage DU+ is led out through the second contactor single body, and the first contactor single body and the second contactor single body are synchronously turned on or turned off. The charging positive loop includes the main positive loop and the charging positive contactor 108, the charging positive contactor 108 is connected in series with the main positive loop through the bus bar, and the charging positive loop is formed; the charging negative loop includes the main negative loop and the charging negative contactor 109, and the main negative loop and the charging negative contactor 109 are connected in series through the bus bar, and the charging negative loop is formed.

[0074] Further specifically, the charging positive contactor 108 and the charging negative contactor 109 also adopt a two-in-one contactor including two contactor single bodies, the charging positive contactor 108 and the charging negative contactor 109 are respectively one of the contactor single bodies of the two-in-one contactor, further reducing the device volume, reducing the number of fixing bolts, and reducing the assembly complexity.

[0075] In a more preferred embodiment, the power supply loop further includes,

[0076] The first temperature sensor 112 is connected to the first end of the main positive fuse 103;

[0077] The second temperature sensor 113 is connected to the main positive contactor 104;

[0078] The third temperature sensor 114 is connected to the second end of the charging negative contactor 109.

[0079] Specifically, the main positive loop is provided with the first temperature sensor 112 and the second temperature sensor 113, and the charging negative loop is provided with the third temperature sensor 114, for monitoring the temperature of the area with relatively serious heat in the high-voltage loop;

[0080] In a more preferred embodiment, the power supply loop further includes,

[0081] The battery positive bus bar 115 is connected to the first end of the main positive fuse 103, and at least a part of the battery positive bus bar 115 extends out of the outside of the lower shell 101 to access the positive input voltage B+;

[0082] The battery negative bus bar 116 is connected to the first end of the main negative fuse 105, and at least a part of the battery negative bus bar 116 extends out of the outside of the lower shell 101 to access the negative input voltage B-;

[0083] The power supply loop further includes,

[0084] The first current sensor 117 is connected to the battery positive bus 115.

[0085] The second current sensor 118 is connected to the battery negative bus 116.

[0086] Specifically, the battery distribution box is provided with six integrated bus bars, i.e., the battery positive bus 115, the battery negative bus 116, the motor positive bus 124, the motor negative bus 125, the charging positive bus 110, and the charging negative bus 111. One end of the six bus bars is connected to the internal devices of the BDU, and the other end is directly led out to the outside of the BDU to realize direct connection with the external parts of the BDU without the need for any other switching mode, thereby improving the space utilization of the BDU and reducing the effect of bolts.

[0087] In a preferred embodiment, a plurality of auxiliary fuses 12 are further included, which are respectively connected to the main positive contactor 104. The auxiliary fuses 12 include,

[0088] The first auxiliary fuse 119 has a first end connected to the main positive contactor 104 and the other end outputting a vehicle-mounted slow charging positive voltage OBC+.

[0089] The second auxiliary fuse 120 has a first end connected to the main positive contactor 104 and the other end outputting a direct alternating current conversion positive voltage DCAC+.

[0090] The third auxiliary fuse 121 has a first end connected to the main positive contactor 104 and the other end outputting a direct current conversion positive voltage DCDC+.

[0091] The fourth auxiliary fuse 122 has a first end connected to the main positive contactor 104 and the other end outputting a vehicle-mounted air conditioner heating positive voltage Heater+.

[0092] The fifth auxiliary fuse 123 has a first end connected to the main positive contactor 104 and the other end outputting a vehicle-mounted air conditioner refrigeration positive voltage EAC+.

[0093] Specifically, the vehicle-mounted negative voltage output by the second end of the main negative fuse includes a corresponding vehicle-mounted slow charging negative voltage OBC-, a direct alternating current conversion negative voltage DCAC-, a direct current conversion negative voltage DCDC-, a vehicle-mounted air conditioner heating negative voltage Heater-, and a vehicle-mounted air conditioner refrigeration negative voltage EAC-.

[0094] Specifically, an auxiliary positive circuit including a plurality of auxiliary fuses 12 is further provided, and the plurality of auxiliary fuses 12 are connected in series with the main positive circuit through bus bars.

[0095] Further specifically, the upper shell 102 is further provided with several protective covers 138 and a fuse protective cover 139, the protective covers 138 are respectively assembled above the busbars or the device interfaces exposed above the upper shell 102, and the fuse protective cover 139 is assembled above the auxiliary fuses, when the electric circuit is short-circuited, the auxiliary fuses 12 can be replaced by only disassembling the fuse protective cover 139, and the fuse protective cover 139 is provided with marks corresponding to the positions of the auxiliary fuses 12, so as to facilitate identification.

[0096] Further specifically, the lower shell 101 is provided with a first wire harness fixing structure 136, and the fuse protective cover 139 is provided with a second wire harness fixing structure 137, the first wire harness fixing structure 136 and the second wire harness fixing structure 137 form a wire harness fixing ring structure after assembly, and the wire harness fixing ring structure realizes the function of fixing the wire harness outside the battery distribution box.

[0097] In a more preferred embodiment, the battery distribution box further comprises,

[0098] The motor positive busbar 124 is connected with the main positive contactor 104, and at least a part of the motor positive busbar 124 extends out of the outside of the lower shell 101 to lead out the motor positive voltage DU+.

[0099] The motor negative busbar 125 is connected with the second end of the main negative fuse 105, and at least a part of the motor negative busbar 125 extends out of the outside of the lower shell 101 to lead out the motor negative voltage DU-.

[0100] In a more preferred embodiment, the battery distribution box further comprises,

[0101] The first voltage plug-in 126 is connected with the voltage sampling points of the power supply circuit, and the plug-in port of the first voltage plug-in 126 is exposed to the upper shell 102, the voltage sampling points include a first sampling point arranged at the first end of the main positive fuse 103, a second sampling point arranged at the output end of the charging positive contactor 108, and a third sampling point arranged at the second end of the main negative fuse 105.

[0102] The second voltage plug-in 127 is connected with the first temperature sensor 112, the second temperature sensor 113, the third temperature sensor 114 and the pre-charging contactor 106, and the plug-in port of the second voltage plug-in 127 is exposed to the upper shell 102 to lead out the temperature signal or access the pre-charging control signal.

[0103] The charging positive plug-in 128 is connected with the positive input voltage B+.

[0104] The charging negative plug-in 129 is connected with the negative input voltage B-.

[0105] Specifically, some functional signals of devices not suitable for direct connection with the battery management system (BMS) control harness are connected through the first voltage plug-in 126 and the second voltage plug-in 127 for connection to the battery distribution box outside the shell and the battery management system (BMS) control harness, wherein the first voltage plug-in 126 is a high-voltage plug-in for detecting a voltage signal on a high-voltage loop, and the second voltage plug-in 127 is a low-voltage plug-in for connecting a temperature sensor and a control harness of a pre-charging contactor 106.

[0106] Specifically, an auxiliary charging connection is arranged at the battery positive busbar 115 and the second current sensor 118, and a charging positive plug-in 128 and a charging negative plug-in 129 are respectively led out, so that the battery can be connected without passing through the battery distribution box after the main positive fuse 103 and the main negative fuse 105 are disconnected, thereby realizing the function of directly charging the battery without the BMS.

[0107] In a preferred embodiment, the interface at least includes,

[0108] a charging contactor interface 130 connected with the charging positive contactor 108 and the charging negative contactor 109;

[0109] a main positive fuse interface 131 connected with the main positive fuse 103;

[0110] a main negative fuse interface 132 connected with the main negative fuse 105;

[0111] a main positive contactor interface 133 connected with the main positive contactor 104.

[0112] Specifically, the battery distribution box is provided with an interface of a device that can be directly connected with the BMS, and the interface includes the charging contactor interface 130, the main negative fuse interface 132, the second current sensor interface 134, the main positive contactor interface 133, and the main positive fuse interface 131, and the original adapter harness in the prior art BDU is cancelled by setting the interface in a unified direction and slotting the corresponding area of the upper shell 102.

[0113] In a preferred embodiment, the upper shell 102 is provided with a fixing point 135 for placing the battery management system, and the fixing point 135 includes a first fixing point arranged on the upper shell 102 and a second fixing point and a third fixing point located away from the interface on the side of the first fixing point.

[0114] Specifically, the three fixing points 135 are arranged on the upper shell 102, so that the BMS can be directly assembled on the battery distribution box without additional brackets and bolt connections; at the same time, the harness connection size of the device to the BMS is also as short as possible; the three fixing points 135 are arranged as far away from the interface as possible to prevent interference with the interface.

[0115] A battery pack, the battery pack is equipped with the integrated battery distribution box in any one embodiment.

[0116] Specifically, the utility model discloses through reasonable space arrangement, the power supply circuit is integrated in the battery distribution box inside as a whole, reduces the problem of the wire harness confusion of battery distribution box and electric core connection, and simultaneously, a plurality of interfaces for leading out the signal of power supply circuit are equipped on the upper shell 102, can directly lead out the signal in the battery distribution box, further save signal adapter wire harness, thereby optimizing the space distribution of battery distribution box and battery pack, improve space utilization.

[0117] The above only is the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and for the person skilled in the art, should be able to realize that the scheme obtained by equivalent replacement and obvious change of the utility model specification and drawing content, should be contained in the protection scope of the utility model.

Claims

1. An integrated battery distribution box comprising a housing and a power supply circuit provided in the housing, characterized by, The shell comprises a lower shell (101) and an upper shell (102) buckled on the lower shell (101), a groove for placing the power supply circuit is arranged in the lower shell (101), a plurality of interfaces for leading out signals of the power supply circuit are arranged on the upper shell (102), the power supply circuit comprises, a main positive fuse (103), a first end of the main positive fuse (103) is connected with a positive input voltage; a main positive contactor (104) connected with a second end of the main positive fuse (103), the main positive contactor (104) controllably outputs a vehicle-mounted positive voltage and a motor positive voltage; a main negative fuse (105), a first end of the main negative fuse (105) is connected with a negative input voltage, and a second end of the main negative fuse (105) outputs a vehicle-mounted negative voltage and a motor negative voltage.

2. The integrated battery distribution box of claim 1, wherein, The power supply circuit further comprises, a pre-charging contactor (106) controllably connected with the second end of the main positive fuse (103); a charging positive contactor (108) connected with the pre-charging contactor (106) through a pre-charging resistor (107), the charging positive contactor (108) controllably outputs a charging positive voltage; a charging positive busbar (110) connected with the charging positive contactor (108), at least a part of the charging positive busbar (110) extends out of the lower shell (101) to lead out the charging positive voltage; a charging negative contactor (109), a first end of the charging negative contactor (109) is connected with the second end of the main negative fuse (105), and a second end of the charging negative contactor (109) controllably outputs a charging negative voltage; a charging negative busbar (111) connected with the second end of the charging negative contactor (109), at least a part of the charging negative busbar (111) extends out of the lower shell (101) to lead out the charging negative voltage.

3. The integrated battery distribution box of claim 2, wherein, The power supply circuit further comprises, a first temperature sensor (112) connected with the first end of the main positive fuse (103); a second temperature sensor (113) connected with the main positive contactor (104); a third temperature sensor (114) connected with the second end of the charging negative contactor (109).

4. The integrated battery distribution box of claim 1, wherein, Further comprising, a battery positive busbar (115) connected with the first end of the main positive fuse (103), at least a part of the battery positive busbar (115) extends out of the lower shell (101) to access the positive input voltage; a battery negative busbar (116) connected with the first end of the main negative fuse (105), at least a part of the battery negative busbar (116) extends out of the lower shell (101) to access the negative input voltage; The power supply circuit further comprises, a first current sensor (117) connected with the battery positive busbar (115); a second current sensor (118) connected with the battery negative busbar (116).

5. The integrated battery distribution box of claim 1, wherein, Further comprising a plurality of auxiliary fuses (12) connected with the main positive contactor (104) respectively, the auxiliary fuse (12) comprises, A first auxiliary fuse (119) is connected to the first end of the main positive contactor (104) and outputs a vehicle-mounted slow charging positive voltage; A second auxiliary fuse (120) is connected to the first end of the main positive contactor (104) and outputs a direct alternating conversion positive voltage; A third auxiliary fuse (121) is connected to the first end of the main positive contactor (104) and outputs a direct current conversion positive voltage; A fourth auxiliary fuse (122) is connected to the first end of the main positive contactor (104) and outputs a vehicle-mounted air conditioner heating positive voltage; A fifth auxiliary fuse (123) is connected to the first end of the main positive contactor (104) and outputs a vehicle-mounted air conditioner refrigeration positive voltage.

6. The integrated battery distribution box of claim 1, wherein, Further comprising, A motor positive busbar (124) is connected to the main positive contactor (104), and at least a part of the motor positive busbar (124) extends out of the lower shell (101) to lead out the motor positive voltage; A motor negative busbar (125) is connected to the second end of the main negative fuse (105), and at least a part of the motor negative busbar (125) extends out of the lower shell (101) to lead out the motor negative voltage.

7. The integrated battery distribution box of claim 3, wherein, Further comprising, A first voltage plug-in (126) is connected to the voltage sampling points of the power supply circuit, and the plug-in port of the first voltage plug-in (126) is exposed to the upper shell (102), and the voltage sampling points include a first sampling point arranged at the first end of the main positive fuse (103), a second sampling point arranged at the output end of the charging positive contactor (108), and a third sampling point arranged at the second end of the main negative fuse (105); A second voltage plug-in (127) is connected to the first temperature sensor (112), the second temperature sensor (113), the third temperature sensor (114), and the pre-charging contactor (106), and the plug-in port of the second voltage plug-in (127) is exposed to the upper shell (102) to lead out a temperature signal or access a pre-charging control signal; A charging positive plug-in (128) is connected to the positive input voltage; A charging negative plug-in (129) is connected to the negative input voltage.

8. The integrated battery distribution box of claim 2, wherein, The interface at least includes, A charging contactor interface (130) is connected to the charging positive contactor (108) and the charging negative contactor (109); A main positive fuse interface (131) is connected to the main positive fuse (103); A main negative fuse interface (132) is connected to the main negative fuse (105); A main positive contactor interface (133) is connected to the main positive contactor (104).

9. The integrated battery distribution box of claim 1, wherein, The upper shell (102) is provided with a fixing point (135) for placing a battery management system, and the fixing point (135) includes a first fixing point arranged on the upper shell (102), and a second fixing point and a third fixing point located on the side of the first fixing point away from the interface.

10. A battery pack, characterized by, The battery pack is provided with an integrated battery distribution box as claimed in any one of claims 1-9. The battery pack is provided with an integrated battery distribution box as claimed in any one of claims 1-9.

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