CN218386889U - Power distribution assembly and battery assembly - Google Patents

Abstract

The utility model provides a power distribution subassembly and battery pack, wherein, the power distribution subassembly includes: the first plug part and the second plug part are arranged at intervals; the relay comprises an input end and an output end, the first plug-in part is electrically connected with the input end through a first conductive bar, and the second plug-in part is electrically connected with the output end through a second conductive bar; the detection assembly comprises a first voltage detection piece, a second voltage detection piece and a temperature detection piece, wherein the first voltage detection piece is arranged on the first conductive bar, the second voltage detection piece is arranged on the second conductive bar, the temperature detection piece is arranged on the first conductive bar or the second conductive bar, and the first voltage detection piece, the second voltage detection piece and the temperature detection piece are all in signal connection with the controller. The technical scheme of the application effectively solves the problem that the relay of the power distribution assembly in the related technology cannot be timely processed when the relay is abnormal.

Description

Power distribution assembly and battery assembly

Technical Field

The utility model relates to a battery technology field particularly, relates to a power distribution subassembly and battery pack.

Background

In the related art, the battery assembly includes a power distribution assembly, a controller, a high voltage battery, a high voltage load, and a high voltage circuit. The power distribution assembly, the controller, the high-voltage battery and the high-voltage load are all located in the high-voltage loop. The power distribution assembly includes a relay that controls the turn-on and turn-off of the high voltage circuit. The high voltage battery provides high voltage power to the power distribution assembly and to high voltage loads in the high voltage circuit, which is above 60 volts.

However, when the relay of the power distribution assembly in the related art is abnormal in voltage or temperature, for example, when the temperature of the relay is too high or the voltage is too high, the internal structure of the relay may be damaged, for example, the relay cannot be handled in time, and a safety hazard may be caused if the relay is used for a long time, for example, the relay may spontaneously combust due to too high temperature.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a power distribution module and a battery module, which can solve the problem that the relay of the power distribution module cannot be handled in time when the relay is abnormal.

In order to achieve the above object, according to an aspect of the present invention, there is provided a power distribution assembly including: the first plug part and the second plug part are arranged at intervals; the relay comprises an input end and an output end, the first plug-in part is electrically connected with the input end through a first conductive bar, and the second plug-in part is electrically connected with the output end through a second conductive bar; the detection assembly comprises a first voltage detection piece, a second voltage detection piece and a temperature detection piece, wherein the first voltage detection piece is arranged on the first conductive bar, the second voltage detection piece is arranged on the second conductive bar, the temperature detection piece is arranged on the first conductive bar or the second conductive bar, and the first voltage detection piece, the second voltage detection piece and the temperature detection piece are all in signal connection with the controller.

Furthermore, the power distribution assembly further comprises a collector, the first voltage detection piece, the second voltage detection piece and the temperature detection piece are in signal connection with the controller through the collector, and the collector is used for collecting a first voltage signal of the first voltage detection piece, a second voltage signal of the second voltage detection piece and a temperature signal of the temperature detection piece.

Further, the collector comprises a first circuit board, and a voltage acquisition chip and a temperature acquisition chip which are arranged on the first circuit board, wherein the first voltage detection piece and the second voltage detection piece are in signal connection with the voltage acquisition chip, the temperature detection piece is in signal connection with the temperature acquisition chip, and the voltage acquisition chip and the temperature acquisition chip are in signal connection with the controller.

Further, the collector still includes the connector, has arranged first interconnecting link, second interconnecting link and third interconnecting link at the interval in the connector, and first voltage detection spare and second voltage detection spare all are connected with the voltage acquisition chip through first interconnecting link, and the temperature detection spare is connected with the temperature acquisition chip through second interconnecting link, and voltage acquisition chip and temperature acquisition chip all are connected with the controller through third interconnecting link.

Furthermore, the temperature detection piece comprises a temperature sensor arranged on the first conductive bar and an insulating outer cover covering the outer side of the temperature sensor, and the temperature sensor is in signal connection with the controller.

Furthermore, the insulating outer cover is arranged on the first conductive bar through a clamping structure, the clamping structure comprises a clamping hook and a bayonet matched with the clamping hook in a clamping mode, the clamping hook is arranged on the insulating outer cover, and the bayonet is arranged on the first conductive bar.

Furthermore, the insulating outer cover is provided with an opening facing the first conducting bar, a second circuit board is arranged on the inner wall of the insulating outer cover opposite to the opening, the temperature sensor is connected to the second circuit board and is in signal connection with the controller through the second circuit board, and a glue storage cylinder sleeved on the outer side of the temperature sensor is arranged on the second circuit board.

Furthermore, the insulating housing is provided with a wire through hole for a temperature signal wire of the temperature sensor to pass through.

Further, the first voltage sensing element includes a first voltage terminal disposed on the first conductor bar, and the second voltage sensing element includes a second voltage terminal disposed on the second conductor bar; the first plug-in part is electrically connected with the second plug-in part through the two relays; the input end of one relay is electrically connected with the first plug-in part through one first conductive bar, the output end of one relay is electrically connected with the second plug-in part through one second conductive bar, the input end of the other relay is electrically connected with the first plug-in part through the other first conductive bar, the output end of the other relay is electrically connected with the second plug-in part through the other second conductive bar, the two first voltage detection pieces are arranged on the two first conductive bars in a one-to-one correspondence manner, the two second voltage detection pieces are arranged on the two second conductive bars in a one-to-one correspondence manner, and the temperature sensor is arranged on the one first conductive bar.

According to another aspect of the present invention, there is provided a battery assembly, including a power distribution assembly and a controller connected to the power distribution assembly, the power distribution assembly is the above power distribution assembly.

Use the technical scheme of the utility model, the power distribution subassembly includes: first grafting portion, second grafting portion, relay and detection component. The first inserting part and the second inserting part are arranged at intervals. The relay comprises an input end and an output end, the first inserting part is electrically connected with the input end through the first conducting bar, and the second inserting part is electrically connected with the output end through the second conducting bar. In this way, the relay controls the switching on and off of the first and second conductor bars between the first and second mating parts. The detection assembly comprises a first voltage detection piece, a second voltage detection piece and a temperature detection piece. The first voltage detection piece is arranged on the first conductive bar and can detect the voltage of the input end of the relay connected with the first conductive bar. The second voltage detection piece is arranged on the second conductive bar and can detect the voltage of the output end of the relay connected with the second conductive bar. The temperature detection member is disposed on the first conductive bar or the second conductive bar. The first voltage detection piece, the second voltage detection piece and the temperature detection piece are in signal connection with the controller. Therefore, the voltage of the input end of the relay, the voltage of the output end of the relay and the temperature of the first conductive bar or the second conductive bar can be detected in real time, detected voltage and temperature information are transmitted to the controller, and the controller can process the relay in time when abnormity occurs. Therefore, the technical scheme of the application effectively solves the problem that the relay of the power distribution assembly in the related art cannot be timely processed when the relay is abnormal.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a power distribution assembly according to the present invention;

FIG. 2 shows a schematic perspective view of a collector of the power distribution assembly of FIG. 1;

FIG. 3 is a schematic perspective view of a temperature sensing member of the power distribution assembly of FIG. 1;

FIG. 4 is a schematic perspective view of another perspective view of the temperature sensing member of the power distribution assembly of FIG. 1;

fig. 5 shows a connection schematic of the power distribution assembly of fig. 1.

Wherein the figures include the following reference numerals:

10. a first insertion part; 20. a second insertion part; 30. a relay; 41. a first conductive bar; 42. a second conductive bar;

50. a detection component; 51. a first voltage terminal; 52. a second voltage terminal; 53. a temperature detection member; 531. an insulating housing; 532. a second circuit board; 533. a temperature sensor; 534. a glue storage cylinder; 535. a clamping structure; 536. a hook; 537. a wire passing hole; 538. a positioning column;

60. a collector; 61. a first circuit board; 62. a voltage acquisition chip; 63. a temperature acquisition chip; 64. a connector; 70. a fuse; 80. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

As shown in fig. 1 and 5, the power distribution assembly of the present embodiment includes: a first socket part 10, a second socket part 20, a relay 30 and a detection assembly 50. The first and second mating parts 10 and 20 are spaced apart. The relay 30 includes an input terminal and an output terminal, the first socket part 10 is electrically connected to the input terminal through the first conductive bar 41, and the second socket part 20 is electrically connected to the output terminal through the second conductive bar 42. The detecting assembly 50 includes a first voltage detecting element, a second voltage detecting element and a temperature detecting element 53, the first voltage detecting element is disposed on the first conductive bar 41, the second voltage detecting element is disposed on the second conductive bar 42, the temperature detecting element 53 is disposed on the first conductive bar 41 or the second conductive bar 42, and the first voltage detecting element, the second voltage detecting element and the temperature detecting element 53 are all in signal connection with the controller 80.

By applying the technical scheme of the embodiment, the power distribution assembly comprises: a first socket part 10, a second socket part 20, a relay 30 and a detection assembly 50. The first and second mating parts 10 and 20 are spaced apart. The relay 30 includes an input terminal and an output terminal, the first socket part 10 is electrically connected to the input terminal through the first conductive bar 41, and the second socket part 20 is electrically connected to the output terminal through the second conductive bar 42. In this way, the relay 30 controls the turn-on and turn-off of the first and second conductive bars 41 and 42 between the first and second socket parts 10 and 20. The detecting assembly 50 includes a first voltage detecting element, a second voltage detecting element, and a temperature detecting element 53. A first voltage detection member is provided on the first conductor bar 41, and the first voltage detection member is capable of detecting a voltage of an input terminal of the relay 30 connected to the first conductor bar 41. A second voltage detecting member is provided on the second conductor bar 42, and the second voltage detecting member is capable of detecting a voltage of an output terminal of the relay 30 connected to the second conductor bar 42. The temperature sensing member 53 is disposed on the first conductor bar 41 or the second conductor bar 42. The first voltage detector, the second voltage detector and the temperature detector 53 are all in signal connection with the controller 80. Therefore, the voltage of the input end and the voltage of the output end of the relay 30 and the temperature of the first conductive bar 41 or the second conductive bar 42 can be detected in real time, the detected voltage and temperature information is transmitted to the controller 80, and the controller 80 can process the abnormal condition of the relay 30 in time. Therefore, the technical scheme of the embodiment effectively solves the problem that the relay of the power distribution assembly in the related art cannot be timely processed when the relay is abnormal. The above-mentioned turning on and off of the first and second conductor bars 41 and 42 is the turning on and off of the high voltage circuit in the related art.

Further, due to the development trend of the battery quick charging technology at present, the power of the battery needs to be improved, and the current of the battery needs to be increased, but such a requirement may cause the increase of the heat productivity of the electrical component, which may cause the reduction of the service life of the electrical component, and may cause a potential safety hazard in the high-voltage circuit. In this embodiment, the first voltage detection unit and the second voltage detection unit perform voltage detection on the relay 30 and perform voltage information acquisition, and transmit the detected first voltage signal and second voltage signal to the controller 80. The controller 80 determines the voltages at the input end and the output end of the relay 30, and monitors the state of the relay 30 and the states of the first conductive bar 41 and the second conductive bar 42 to control the on/off of the first conductive bar 41 and the second conductive bar 42, thereby effectively ensuring the safety of the high-voltage loop. This application is through the voltage of the input of real-time detection relay 30, the voltage of output and the temperature of first electrically conductive row 41 or the electrically conductive row 42 of second, carries out real-time detection to the relay 30 state effectively, and the relay 30 appears unusually can in time handle, has reduced the potential safety hazard.

Preferably, the first conductive bar 41 is a first copper bar or a first aluminum bar, and the second conductive bar 42 is a second copper bar or a second aluminum bar. The controller is preferably a battery information manager or a vehicle control unit.

As shown in fig. 1 and 5, the power distribution assembly further includes a collector 60. The first voltage detection element, the second voltage detection element and the temperature detection element 53 are in signal connection with the controller 80 through the collector 60. The collector 60 is used for collecting a first voltage signal of the first voltage detection element, a second voltage signal of the second voltage detection element, and a temperature signal of the temperature detection element 53. The collector 60 reduces the operation difficulty and required wiring when the first voltage detection part, the second voltage detection part and the temperature detection part 53 are in signal connection with the controller 80, and facilitates the collection of the first voltage signal, the second voltage signal and the temperature signal.

In this embodiment, the temperature detecting element 53 transmits the detected temperature signal to the collector 60 through a low voltage wire harness, the collector 60 transmits the temperature signal to the controller 80 through an electrical connection loop, and the controller 80 performs temperature management on the first conducting bar 41 or the second conducting bar 42 in the power distribution assembly, so as to reduce the risk of thermal runaway of the power distribution assembly, and improve the high voltage load in the power distribution assembly and the service life of the first conducting bar 41 and the second conducting bar 42.

In this embodiment, the first voltage detection part and the second voltage detection part transmit the first voltage signal and the second voltage signal to the collector 60 through the high voltage wire harness, and the collector 60 transmits the first voltage signal and the second voltage signal to the controller 80 through the CAN bus.

As shown in fig. 2 and 5, the collector 60 includes a first circuit board 61, and a voltage collecting chip 62 and a temperature collecting chip 63 disposed on the first circuit board 61. First voltage detection spare and second voltage detection spare all with voltage acquisition chip 62 signal connection, temperature detection spare 53 and temperature acquisition chip 63 signal connection, voltage acquisition chip 62 and temperature acquisition chip 63 all with controller 80 signal connection. The voltage acquisition chip 62 can acquire a first voltage signal and a second voltage signal, and the temperature acquisition chip 63 can acquire a temperature signal. The voltage acquisition chip 62 and the temperature acquisition chip 63 transmit the acquired first voltage signal, second voltage signal and temperature signal to the controller 80, so that the controller 80 can further process the first voltage signal, second voltage signal and temperature signal.

As shown in fig. 2 and 5, the collector 60 further includes a connector 64, and a first connection line, a second connection line and a third connection line are arranged at intervals in the connector 64. First voltage detection spare and second voltage detection spare all are connected with voltage acquisition chip 62 through first interconnecting link, and temperature detection spare 53 is connected with temperature acquisition chip 63 through second interconnecting link, and voltage acquisition chip 62 and temperature acquisition chip 63 all are connected with controller 80 through third interconnecting link. The connector 64 is provided to connect the wire harness connected to the first voltage detector, the wire harness connected to the second voltage detector, and the wire harness connected to the temperature detector 53 to the first circuit board 61 of the collector 60 via the connector 64, thereby simplifying wiring. The arrangement of the first connecting circuit, the second connecting circuit and the third connecting circuit avoids signal interference during signal connection, and the reliability of signal connection is improved.

In the present embodiment, the temperature sensing member 53 is used to sense the temperature of the first conductive bar 41 and transmit a sensed temperature signal to the controller 80. Since the temperature of the contact position of the relay 30 is the highest in the high voltage circuit, the temperature detecting member 53 is disposed on the first conductive bar 41 above the contact position of the relay 30, and the temperature of the relay 30 can be better detected through the first conductive bar 41.

As shown in fig. 3 and 4, the temperature detecting member 53 includes a temperature sensor 533 disposed on the first conductive row 41, and an insulating cover 531 disposed outside the temperature sensor 533, and the temperature sensor 533 is in signal connection with the controller 80. The insulating outer cover 531 facilitates the arrangement of the temperature sensor 533 on the first conductive bar 41, and the insulating outer cover 531 is covered outside the temperature sensor 533, so that the influence of the temperature outside the insulating outer cover 531 can be avoided, and the accuracy of the temperature sensor 533 in detecting the temperature of the first conductive bar 41 is improved. The insulating outer cover 531 is made of insulating materials, so that the short circuit phenomenon is avoided.

As shown in fig. 1, 3 and 4, the insulating cover 531 is disposed on the first conductive bar 41 through a clamping structure 535, so as to facilitate the mounting and dismounting of the insulating cover 531 on the first conductive bar 41. The clamping structure 535 includes a hook 536 and a bayonet engaged with the hook 536, the hook 536 is disposed on the insulating housing 531, and the bayonet is disposed on the first conductive bar 41. The clamping matching is carried out through the clamping hook 536 and the clamping opening, the structure is simple, and the production and the processing are convenient.

In this embodiment, the insulating housing 531 is in positioning fit with the first conductive bar 41 through a positioning structure, the positioning structure includes a positioning pillar 538 and a positioning hole in positioning fit with the positioning pillar 538, the positioning pillar 538 is disposed on the insulating housing 531, and the positioning hole is disposed on the first conductive bar 41. The positioning structure positions the insulating cover 531 when mounted to the first conductive bar 41 to facilitate mounting of the insulating cover 531 to the first conductive bar 41.

As shown in fig. 3 and 4, the insulating cover 531 has an opening facing the first conductive bar 41, and a second circuit board 532 is disposed on an inner wall of the insulating cover 531 opposite to the opening. The temperature sensor 533 is connected to the second circuit board 532 and is in signal connection with the controller 80 via the second circuit board 532. In this way, the temperature sensor 533 is disposed within the insulating housing 531 and facing the first conductive row 41, and the temperature sensor 533 detects the temperature of the first conductive row 41. The second circuit board 532 is provided with a glue storage cylinder 534 sleeved outside the temperature sensor 533. In this embodiment, one side of the second circuit board 532 where the temperature sensor 533 is disposed is further provided with a moisture-proof adhesive layer, the moisture-proof adhesive layer is enclosed in the outer side of the temperature sensor 533 to prevent moisture from occurring on the temperature sensor 533, and the moisture-proof adhesive layer fills up the glue storage cylinder 534 to enable the temperature sensor 533 to achieve a better moisture-proof effect. The glue storage cylinder 534 is arranged so that the moisture-proof glue layer can be better molded when being solidified.

In the present embodiment, the second circuit board 532 is preferably a printed circuit board, i.e., a PCB circuit board.

As shown in fig. 3 and 4, the insulating outer cover 531 is provided with a wire through hole 537 for the temperature signal wire of the temperature sensor 533 to pass through, and the wire through hole 537 facilitates the temperature signal wire to pass through the insulating outer cover 531, so as to avoid the direct contact between the temperature signal wire and the first conductive bar 41, and reduce the possibility of damaging the temperature signal wire due to the over-high temperature of the first conductive bar 41.

As shown in fig. 1 and 5, the first voltage sensing member includes a first voltage terminal 51 disposed on the first conductor bar 41, and the second voltage sensing member includes a second voltage terminal 52 disposed on the second conductor bar 42. The first voltage terminal 51 is electrically connected to the input terminal through the first conductive bar 41, the second voltage terminal 52 is electrically connected to the output terminal through the second conductive bar 42, the voltage of the input terminal of the relay 30 connected to the first conductive bar 41 is detected through the first voltage terminal 51, and the voltage of the output terminal of the relay 30 connected to the second conductive bar 42 is detected through the second voltage terminal 52. The number of the relays 30, the first conductive bar 41, the second conductive bar 42, the first voltage detecting element and the second voltage detecting element is two, and the first inserting portion 10 is electrically connected to the second inserting portion 20 through the two relays 30. An input terminal of one relay 30 is electrically connected to the first socket 10 through a first conductive bar 41, and an output terminal of one relay 30 is electrically connected to the second socket 20 through a second conductive bar 42. The input terminal of another relay 30 is electrically connected to the first connector 10 through another first conductive strip 41, and the output terminal of another relay 30 is electrically connected to the second connector 20 through another second conductive strip 42. Two first voltage detecting members are disposed on the two first conductive bars 41 in a one-to-one correspondence, two second voltage detecting members are disposed on the two second conductive bars 42 in a one-to-one correspondence, and a temperature sensor 533 is disposed on one first conductive bar 41.

In this embodiment, the first conductive bar 41 without the temperature sensor 533 is electrically connected to the first inserting part 10 through the fuse 70, so as to ensure safe operation of the circuit without the temperature sensor 533. The first voltage terminal 51 is fixed to the first conductor bar 41 by a fastening bolt, and the second voltage terminal 52 is fixed to the second conductor bar 42 by a fastening bolt.

In this embodiment, when the temperature signal received by the controller 80 is greater than or equal to 120 ℃, the controller 80 controls the power to be reduced to 0, and turns off the relay; when the temperature signal received by the controller 80 is greater than or equal to 125 ℃, the controller 80 forcibly turns off the relay 30 to protect the high-voltage circuit. The relay 30 is preferably a fast charge relay 30 and the high voltage circuit is preferably a fast charge high voltage circuit.

The present application further provides a battery assembly, where the battery assembly of this embodiment includes a power distribution assembly and a controller 80 connected to the power distribution assembly, and the power distribution assembly is the above-mentioned power distribution assembly. Further, the collector 60 transmits the first voltage signal, the second voltage signal and the temperature signal to the controller 80, and the controller 80 detects and determines the state of the relay 30, and timely cuts off the relay 30 when the voltage is abnormal to protect the safety of the battery pack. The power distribution assembly can solve the problem that the relay of the power distribution assembly in the related art cannot be timely processed when the relay is abnormal, so that the battery assembly with the power distribution assembly can solve the same technical problem.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A power distribution assembly, comprising:

the connector comprises a first inserting part (10) and a second inserting part (20), wherein the first inserting part (10) and the second inserting part (20) are arranged at intervals;

the relay (30) comprises an input end and an output end, the first plug-in part (10) is electrically connected with the input end through a first conductive bar (41), and the second plug-in part (20) is electrically connected with the output end through a second conductive bar (42);

detection subassembly (50), including first voltage detection spare, second voltage detection spare and temperature detection spare (53), first voltage detection spare sets up on first electrically conductive row (41), second voltage detection spare sets up on second electrically conductive row (42), temperature detection spare (53) set up first electrically conductive row (41) or on second electrically conductive row (42), first voltage detection spare the second voltage detection spare reaches temperature detection spare (53) all with controller (80) signal connection.

2. The power distribution assembly of claim 1, further comprising a collector (60), wherein the first voltage detector, the second voltage detector and the temperature detector (53) are in signal connection with the controller (80) through the collector (60), and the collector (60) is configured to collect a first voltage signal of the first voltage detector, collect a second voltage signal of the second voltage detector and collect a temperature signal of the temperature detector (53).

3. The power distribution assembly of claim 2, wherein the collector (60) comprises a first circuit board (61), and a voltage collecting chip (62) and a temperature collecting chip (63) which are arranged on the first circuit board (61), the first voltage detecting element and the second voltage detecting element are both in signal connection with the voltage collecting chip (62), the temperature detecting element (53) is in signal connection with the temperature collecting chip (63), and the voltage collecting chip (62) and the temperature collecting chip (63) are both in signal connection with the controller (80).

4. The power distribution assembly of claim 3, wherein the collector (60) further comprises a connector (64), a first connection line, a second connection line and a third connection line are arranged at intervals in the connector (64), the first voltage detector and the second voltage detector are both connected with the voltage collection chip (62) through the first connection line, the temperature detector (53) is connected with the temperature collection chip (63) through the second connection line, and the voltage collection chip (62) and the temperature collection chip (63) are both connected with the controller (80) through the third connection line.

5. The power distribution assembly of claim 1, wherein the temperature detecting member (53) comprises a temperature sensor (533) disposed on the first conductive row (41) and an insulating housing (531) disposed outside the temperature sensor (533), the temperature sensor (533) being in signal connection with the controller (80).

6. The power distribution assembly of claim 5, wherein the insulating housing (531) is disposed on the first conductive bar (41) through a clamping structure (535), the clamping structure (535) comprises a hook (536) and a bayonet snap-fitted with the hook (536), the hook (536) is disposed on the insulating housing (531), and the bayonet is disposed on the first conductive bar (41).

7. The power distribution assembly of claim 5, wherein the insulating housing (531) has an opening facing the first conductive bar (41), a second circuit board (532) is disposed on an inner wall of the insulating housing (531) opposite to the opening, the temperature sensor (533) is connected to the second circuit board (532) and is in signal connection with the controller (80) through the second circuit board (532), and a glue cartridge (534) disposed on the second circuit board (532) and disposed outside the temperature sensor (533) is disposed.

8. The power distribution assembly of claim 5, wherein the insulating housing (531) is provided with a wire passing hole (537) through which a temperature signal wire of the temperature sensor (533) passes.

9. The power distribution assembly of claim 5,

the first voltage detection means comprises a first voltage terminal (51) arranged on the first conductor bar (41), the second voltage detection means comprises a second voltage terminal (52) arranged on the second conductor bar (42);

the number of the relays (30), the number of the first conductive bars (41), the number of the second conductive bars (42), the number of the first voltage detection parts and the number of the second voltage detection parts are two, and the first plug-in part (10) is electrically connected with the second plug-in part (20) through the two relays (30);

wherein the input end of one relay (30) is electrically connected with the first plug part (10) through one first conductive bar (41), the output end of one relay (30) is electrically connected with the second plug part (20) through one second conductive bar (42), the input end of the other relay (30) is electrically connected with the first plug part (10) through the other first conductive bar (41), and the output end of the other relay (30) is electrically connected with the second plug part (20) through the other second conductive bar (42),

the two first voltage detection pieces are arranged on the two first conductive rows (41) in a one-to-one correspondence manner, the two second voltage detection pieces are arranged on the two second conductive rows (42) in a one-to-one correspondence manner, and the temperature sensor (533) is arranged on one first conductive row (41).

10. A battery assembly comprising a power distribution assembly and a controller (80) connected to the power distribution assembly, wherein the power distribution assembly is as claimed in any one of claims 1 to 9.

Images