Battery pack and electric device

Abstract

The application discloses a battery pack and an electric device. The battery pack comprises a battery module, an electrical isolation plate, a busbar, a signal acquisition component, a thermal management component and a heat conduction component. The electrical isolation plate comprises a plate body and a blocking part. The plate body is connected to one side of the battery module, and the blocking part is connected to the plate body. The busbar comprises a concave bending part and a plurality of main body parts. The two sides of the concave bending part are respectively connected with the main body parts. The concave bending part is located on the side of the plate body away from the battery module. The concave bending part corresponds to the blocking part. The main body parts are electrically connected to the battery module. The signal acquisition component is electrically connected to the main body parts and partially located on the side of the blocking part away from the concave bending part. The thermal management component is thermally connected to the concave bending part and the main body parts. The heat conduction component is located on the side of the blocking part away from the signal acquisition component. According to the application, the blocking part is arranged on the side of the concave bending part facing the signal acquisition component, so that the blocking part can block the heat conduction component, avoiding the flow of the heat conduction component from being bonded to the signal acquisition component and causing the signal acquisition component to be torn.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a battery pack and an electrical device. Background Technology

[0002] In related technologies, after thermally conductive adhesive is filled between the thermal management component and the busbar, the thermally conductive adhesive will flow to the recess of the busbar and overflow from the recess onto the signal acquisition component, causing the signal acquisition component to stick together and affecting the acquisition effect. Moreover, the battery pack will generate expansion force during use, and the expansion force applied to the stuck signal acquisition component will cause the signal acquisition component to tear. Summary of the Invention

[0003] This application aims to provide a battery pack and power supply device that at least solves the problem of heat-conducting components overflowing and sticking to signal acquisition components.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application propose a battery pack, including: a battery module, an electrical isolation board, a bus, a signal acquisition component, a thermal management component, and a heat-conducting component.

[0005] The electrical isolation plate includes a plate body and a blocking portion. Along the first direction, the plate body is connected to one side of the battery module, and the blocking portion is connected to the side of the plate body facing away from the battery module. The busbar includes a concave bend and multiple main bodies. The concave bend is connected to the main bodies on both sides along the second direction. The concave bend is recessed relative to the main bodies and faces the battery module along the first direction. The concave bend is located on the side of the plate facing away from the battery module along the first direction. The concave bend corresponds to the blocking part along the third direction. The main bodies are located on the side of the plate facing away from the battery module along the first direction and are electrically connected to the battery module. The signal acquisition unit is located on the side of the plate opposite to the battery module along the first direction and is electrically connected to the main body. Some of the signal acquisition units are located on the side of the blocking part opposite to the concave bend along the third direction. The thermal management component is located along the first direction on the side of the concave bend and the main body that faces away from the battery module; A heat-conducting component is connected to the thermal management component, the concave bend, and the main body. The heat-conducting component is located at least partially between the thermal management component and the concave bend along the first direction, and along the third direction on the side of the blocking portion opposite to the signal acquisition component.

[0006] Secondly, embodiments of this application provide an electrical device including the battery pack described in the above embodiments.

[0007] In the embodiments of this application, the beneficial effect is that a blocking part is provided on the side of the concave bend facing the signal acquisition device, and the blocking part and the concave bend are arranged opposite to each other, so that after the heat conduction part is bonded to the main body and the concave bend, the blocking part can block the heat conduction part at the end of the concave bend, thereby preventing the heat conduction part on the concave bend from flowing and sticking to the signal acquisition device, which would cause the signal acquisition device to tear.

[0008] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0009] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the battery pack structure according to an embodiment of the present invention; Figure 2 This is a top view of the battery pack according to an embodiment of the present invention; Figure 3 According to the embodiments of the present invention Figure 2 Enlarged view of point A; Figure 4 This is a side sectional view of the battery pack according to an embodiment of the present invention; Figure 5 This is a partially enlarged schematic diagram of the electrical isolation plate according to an embodiment of the present invention; Figure 6 This is a side sectional view of the electrical isolation plate according to an embodiment of the present invention.

[0010] Figure label: Battery pack 100; Battery module 110; Electrical isolation plate 120; plate body 121; first groove 1211; first bottom wall 1212; second groove 1213; second bottom wall 1214; opening 1215; blocking part 122; support part 123; receiving groove 1231; partition part 124; Busbar 130; concave bend 131; main body 132; Signal acquisition component 140; first baffle component 150; second baffle component 160; third baffle component 170; heat conduction component 180; thermal management component 190; First direction Z; second direction Y; third direction X. Detailed Implementation

[0011] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein 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 accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0012] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0013] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0014] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0015] The following is combined Figures 1 to 6 A battery pack according to a first aspect embodiment and an electrical device according to a second aspect embodiment are described. It should be noted that the battery pack 100 and the electrical device have a first direction Z, a second direction Y, and a third direction X, and the first direction Z, the second direction Y, and the third direction X are all perpendicular to each other.

[0016] The first aspect of this application provides a battery pack 100, such as Figures 1 to 5As shown, the battery pack 100 includes a battery module 110, an electrical isolation plate 120, a busbar 130, a signal acquisition component 140, a thermal management component 190, and a heat-conducting component 180. The electrical isolation plate 120 includes a plate body 121 and a blocking portion 122. The plate body 121 is connected to one side of the battery module 110 along the first direction Z, and the blocking portion 122 is located on the side of the plate body 121 facing away from the battery module 110 along the first direction Z and is connected to the plate body 121.

[0017] To improve the adaptability of the busbar 130 to the forces generated by the expansion of the battery module 110, the busbar 130 includes a concave bend 131 and a plurality of main body portions 132. The main body portions 132 are connected to both sides of the concave bend 131 along the second direction Y. The concave bend 131 is recessed relative to the main body portions 132 toward the battery module 110 along the first direction Z. The concave bend 131 and the main body portions 132 are located on the side of the plate 121 facing away from the battery module 110 along the first direction Z. The concave bend 131 corresponds to the blocking portion 122 along the third direction X; that is, the blocking portion 122 and the concave bend 131 are arranged opposite each other along the third direction X. The main body portions 132 are electrically connected to the battery module 110. During charge-discharge cycles, the battery module 110 expands, and this expansion generates tensile stress on the main body portions 132. The concave portion 131 is recessed relative to the main body 132 toward the battery module 110, making at least a portion of the concave portion 131 a curved structure. This improves the deformation capability of the concave portion 131, allowing it to deform in the second direction Y when the main body 132 is subjected to tensile stress from the battery module 110. In other words, the main body 132 stretches or compresses the concave portion 131, causing it to deform. This reduces the tensile stress at the connection between the main body 132 and the battery module 110, reducing the risk of the busbar 130 cracking or breaking due to repeated stretching, thereby improving the connection stability between the busbar 130 and the battery module 110.

[0018] The signal acquisition unit 140 is located along the first direction Z on the side of the plate 121 facing away from the battery module 110, and the signal acquisition unit 140 is electrically connected to the main body 132. The signal acquisition unit 140 is used to acquire the status information of the battery module 110. Some of the signal acquisition units 140 are located along the third direction X on the side of the blocking part 122 facing away from the concave bend 131.

[0019] A thermal management component 190 is located along the first direction Z on the side of the concave bend 131 and the main body 132 facing away from the battery module 110. The thermal management component 190 is thermally connected to the concave bend 131 and the main body 132 to achieve cooling and heat dissipation for the battery module 110. A thermally conductive component 180 connects the thermal management component 190, the concave bend 131, and the main body 132. At least a portion of the thermally conductive component 180 is located along the first direction Z between the thermal management component 190 and the concave bend 131, and the thermally conductive component 180 is located along the third direction X on the side of the blocking portion 122 facing away from the signal acquisition component 140. The thermally conductive component 180 is located between the signal acquisition component 140 and the concave bend 131, and between the signal acquisition component 140 and the main body 132. The thermally conductive component 180 improves the thermal conductivity between the thermal management component 190 and the concave bend 131 and the main body 132, thereby improving the thermal management effect of the thermal management component 190 on the battery module 110.

[0020] Specifically, in one example, since the concave portion 131 is recessed relative to the main body 132, when a heat-conducting element 180 is provided on both the concave portion 131 and the main body 132, the heat-conducting element 180 has fluidity, and a portion of the heat-conducting element 180 flows toward the concave portion 131. In related technologies, the heat-conducting element 180 overflows from the concave portion 131 to the location of the signal acquisition element 140 and adheres to the signal acquisition element 140, causing the signal acquisition element 140 to be fixed by the heat-conducting element 180. When the signal acquisition element 140 is subjected to the expansion force generated by the charging and discharging cycle of the battery module 110, the signal acquisition element 140 will be pulled, causing damage or tearing of the signal acquisition element 140. In this embodiment, the blocking part 122 is disposed at the end of the concave bend 131 facing the signal acquisition element 140. The blocking part 122 corresponds to the concave bend 131, so that when the heat-conducting element 180 flows on the concave bend 131 and overflows from the end of the concave bend 131, the blocking part 122 will be located between the concave bend 131 and the signal acquisition element 140 to block the heat-conducting element 180 and block the flow path of the heat-conducting element 180, thereby preventing the heat-conducting element 180 from flowing to the position of the signal acquisition element 140, thereby preventing the signal acquisition element 140 from being stuck and damaged or torn, thereby improving the acquisition effect of the signal acquisition element 140.

[0021] like Figure 5 and Figure 6As shown, along the third direction X, on a plane perpendicular to the third direction X, the orthographic projection of the blocking portion 122 covers the orthographic projection of the concave portion 131. Specifically, on the projection plane of the third direction X, the projection of the concave portion 131 lies within the projection of the blocking portion 122. It can be understood that the depth of the concave portion 131 in the first direction Z is less than the height of the blocking portion 122 in the first direction Z, and the width in the second direction Y is less than the width of the blocking portion 122 in the second direction Y. The concave portion 131 is covered by the blocking portion 122 along the third direction X. In this embodiment, the projection of the blocking part 122 covers the projection of the concave bend 131, so that the blocking part 122 can completely block the end of the concave bend 131 on the side of the concave bend 131 facing the signal acquisition device 140, thereby increasing the blocking area of ​​the blocking part 122 on the heat-conducting component 180 on the concave bend 131, further improving the blocking effect of the blocking part 122 on the heat-conducting component 180, thereby reducing the possibility of the signal acquisition device 140 being stuck to the heat-conducting component 180, and thus improving the acquisition effect of the signal acquisition device 140.

[0022] Furthermore, such as Figure 3 and Figure 5 As shown, the blocking portion 122 abuts against the main body portions 132 on opposite sides of the concave bend portion 131 along the second direction Y. Specifically, the blocking portion 122 has opposite ends along the second direction Y, with one end abutting against the main body portion 132 on one side of the concave bend portion 131 and the other end abutting against the main body portion 132 on the other side of the concave bend portion 131. In this embodiment, the blocking portion 122 abuts against the main body portion 132 and the concave bend portion 131, which can reduce the distance between the blocking portion 122 and the main body portion 132 and the concave bend portion 131 along the third direction X, improve the tightness of the connection between the blocking portion 122 and the busbar 130, and prevent the heat-conducting element 180 from flowing relative to the concave bend portion 131 and possibly flowing out from the gap between the concave bend portion 131 and the blocking portion 122, thereby improving the blocking effect of the blocking portion 122 on the heat-conducting element 180 and further improving the separation effect between the signal acquisition element 140 and the heat-conducting element 180.

[0023] like Figure 3 and Figure 5 As shown, in one possible embodiment, the plate 121 has a first groove 1211 and a plurality of second grooves 1213 on the side facing away from the battery module 110 along the first direction Z. The first groove 1211 has second grooves 1213 on both sides along the second direction Y. A blocking portion 122 corresponds to the first groove 1211 along the third direction X, a concave portion 131 is accommodated in the first groove 1211, and a main body portion 132 is accommodated in the second grooves 1213.

[0024] In a specific embodiment, the plate 121 has an upper surface facing away from the battery module 110 along the first direction Z. The first groove 1211 and the second groove 1213 are recessed relative to the upper surface along the first direction Z toward the battery module 110. The structure formed by the first groove 1211 and the second groove 1213 matches the structure of the busbar 130, that is, the concave bend 131 and the main body 132 of the busbar 130 can be correspondingly accommodated in the first groove 1211 and the second groove 1213. The blocking part 122 corresponds to the first groove 1211 along the third direction X, and is disposed opposite to the concave bend 131 in the third direction X. In this embodiment, the first groove 1211 is provided to accommodate the concave bend 131, and the second groove 1213 is provided to accommodate the main body 132, which can improve the installation stability of the busbar 130 and the plate 121. Furthermore, when a portion of the heat-conducting component 180 overflows from the concave bend 131, the first groove 1211 can store a portion of the heat-conducting component 180, and the groove wall of the first groove 1211 can block the heat-conducting component 180, further reducing the risk that the heat-conducting component 180 will flow to the signal acquisition component 140 and cause the signal acquisition component 140 to be stuck and fixed.

[0025] Furthermore, such as Figure 6 As shown, in the first direction Z, the first groove 1211 has a first bottom wall 1212, and the second groove 1213 has a second bottom wall 1214. The first bottom wall 1212 is recessed relative to the second bottom wall 1214 toward the battery module 110. Specifically, the first bottom wall 1212 and the second bottom wall 1214 have a height difference in the first direction Z. The first bottom wall 1212 is closer to the battery module 110 than the second bottom wall 1214, so that the shape structure formed by the first bottom wall 1212 and the second bottom wall 1214 is compatible with the shape structure formed by the concave bend 131 and the main body 132 of the busbar 130, thereby improving the installation stability of the busbar 130 and the electrical isolation plate 120. In addition, the first bottom wall 1212 and the second bottom wall 1214 are recessed relative to the upper surface of the plate 121 along the first direction Z toward the battery module 110, so that both the first groove 1211 and the second groove 1213 can store part of the heat-conducting component 180, reducing the risk of the heat-conducting component 180 flowing to the signal acquisition component 140.

[0026] like Figure 6 As shown, in some embodiments, the electrical isolation plate 120 further includes a support portion 123, which is connected to the side of the plate body 121 facing the battery module 110 along a first direction Z, and the support portion 123 abuts against the battery module 110.

[0027] In specific embodiments, such as Figure 4As shown, the plate 121 has a through hole, and the battery module 110 includes multiple individual batteries, each individual battery including a housing and a terminal. The terminal is connected to the side of the housing facing the plate 121 and passes through the through hole of the plate 121 to connect to one of the main bodies 132 of the busbar 130. When the plate 121 has a first groove 1211 and a second groove 1213, the through hole is located on the second groove 1213. The support portion 123 is located below the plate 121 along the first direction Z. After the electrical isolation plate 120 is connected to the individual battery, the support portion 123 abuts against the housing of the individual battery, thereby improving the connection stability between the individual battery and the electrical isolation plate 120. In one example, the first groove 1211 is recessed relative to the second groove 1213 toward the battery module 110. The side of the support portion 123 toward the battery module 110 is parallel and coplanar with the side of the first groove 1211 toward the battery module 110, meaning the distance between the side of the support portion 123 toward the battery module 110 and the battery module 110 is equal to the distance between the side of the first groove 1211 toward the battery module 110 and the battery module 110. The first groove 1211 is located between two adjacent single cells.

[0028] Furthermore, such as Figure 5 and Figure 6 As shown, in some embodiments, the support portion 123 has a receiving groove 1231 inside, and the plate 121 has an opening 1215 on the side facing away from the battery module 110 along the first direction Z. The receiving groove 1231 communicates with the opening 1215, and the main body portion 132 partially blocks the opening 1215 along the first direction Z. Specifically, the main body portion 132 partially blocks the opening 1215, that is, a portion of the main body portion 132 extends to the position of the opening 1215, so that the main body portion 132 and the opening 1215 have a communication point, improving the convenience of the heat-conducting component 180 overflowing from the main body portion 132 to the opening 1215. The support portion 123 has a receiving groove 1231 inside that can accommodate the heat-conducting component 180. When there is an excess of heat-conducting elements 180 on the concave bend 131 and the main body 132, causing overflow, some of the heat-conducting elements 180 can be accommodated in the receiving groove 1231, thereby reducing the flow of the heat-conducting elements 180 and thus reducing the risk of the heat-conducting elements 180 sticking to the signal acquisition element 140.

[0029] like Figure 5 As shown, in one possible implementation, the plate 121 has a second groove 1213 on the side facing away from the battery module 110 along the first direction Z, and an opening 1215 communicates with the second groove 1213. The main body 132 is accommodated in the second groove 1213 and partially blocks the opening 1215.

[0030] In a specific embodiment, the second groove 1213, the opening 1215, and the receiving groove 1231 are sequentially connected along the first direction Z, that is, the second groove 1213 is connected to the opening 1215, and the opening 1215 is connected to the receiving groove 1231, thereby forming a continuous flow channel structure. When the main body 132 is housed in the second groove 1213, the side of the main body 132 facing away from the battery module 110 is located above the opening 1215 along the first direction Z. When the heat-conducting component 180 overflows, the overflowing heat-conducting component 180 will flow towards a lower direction. That is, the heat-conducting component 180 will flow from the side of the main body 132 away from the battery module 110 to the opening 1215, and then flow into the receiving groove 1231 from the opening 1215. This realizes the function of the receiving groove 1231 in collecting and temporarily storing the heat-conducting component 180, thereby reducing the risk of the heat-conducting component 180 overflowing into the concave bend 131 and then overflowing into the signal acquisition component 140.

[0031] In another embodiment, at least a portion of the heat-conducting element 180 is accommodated in the receiving groove 1231. Specifically, when the concave portion 131 and the main body 132 of the busbar 130 are connected to the thermal management component 190, the heat-conducting element 180 is filled between the concave portion 131 and the main body 132 and the thermal management component 190. When filling the heat-conducting element 180, an excess of the heat-conducting element 180 is filled, such that a portion of the heat-conducting element 180 is accommodated in the receiving groove 1231, that is, the excess portion of the heat-conducting element 180 flows into the receiving groove 1231. This ensures the integrity and uniformity of the filling of the heat-conducting element 180 between the concave portion 131 and the main body 132 and the thermal management component 190, thereby improving the thermal conductivity and connection stability of the busbar 130 and the thermal management component 190.

[0032] like Figure 2 and Figure 3 As shown, in one possible implementation, the battery pack 100 further includes a first baffle 150, which is located on the side of the plate 121 facing away from the battery module 110 along the first direction Z, and a portion of the first baffle 150 is located on the side of the blocking portion 122 facing away from the concave portion 131 along the third direction X.

[0033] Specifically, a portion of the first baffle 150 is located on the side of the concave bend 131 facing the blocking portion 122, and is situated between the signal acquisition component 140 and the concave bend 131. The length of the first baffle 150 along the second direction Y can cover the extension range of the concave bend 131 along the second direction Y, that is, the first baffle 150 can block the concave bend 131 in the third direction X, thereby blocking the area involved by the concave bend 131. The first baffle 150 is connected to the plate body 121. When the heat-conducting component 180 of the concave bend 131 overflows, the first baffle 150 will block the heat-conducting component 180, cutting off the path of the heat-conducting component 180 to the signal acquisition component 140, thereby reducing the risk of the signal acquisition component 140 being adhered to by the heat-conducting component 180.

[0034] Furthermore, such as Figure 2 and Figure 3 As shown, in a further embodiment, at least a portion of the first baffle 150 is located on the side of the blocking portion 122 facing away from the plate 121 and presses against the blocking portion 122. In a specific embodiment, the first baffle 150 is an elastic structural member, such as foam or rubber. After the first baffle 150 is connected to the blocking portion 122, it is subjected to pressure along the first direction Z, thereby pressing against the blocking portion 122. The first baffle 150 deforms under pressure to eliminate the gap between the first baffle 150 and the blocking portion 122, that is, the first baffle 150 adheres to a portion of the periphery of the blocking portion 122, so that the first baffle 150 and the blocking portion 122 can cooperate to form a barrier, thereby improving the tightness of their connection and further improving the blocking effect on the heat-conducting component 180.

[0035] like Figure 2 and Figure 3 As shown, in another embodiment, the battery pack 100 further includes a second retaining member 160, which is located on the side of the concave portion 131 and the main body portion 132 facing away from the first retaining member 150 along the third direction X. The first retaining member 150 and the second retaining member 160 are spaced apart along the third direction X.

[0036] It is understandable that, along the first direction Z, on a plane perpendicular to the first direction Z, the orthographic projections of the main body 132, the blocking part 122, and the concave bend 131 are located between the orthographic projections of the first baffle 150 and the second baffle 160. The second baffle 160 is located at the edge of the electrical isolation plate 120 along the third direction X, that is, the edge adjacent to the battery module 110 and another battery module 110. By setting the second baffle 160, the flow of the heat-conducting part 180 away from the signal acquisition unit 140 can be prevented, which would cause the two adjacent battery modules 110 to stick together due to the heat-conducting part 180, affecting the normal operation of the battery modules 110, thereby ensuring that the signal acquisition unit 140 can acquire signals from the battery modules 110.

[0037] like Figure 2 As shown, in a further embodiment, the battery pack 100 further includes a third baffle 170, which is located on the side of the plate 121 facing away from the battery module 110 along the first direction Z. The first baffle 150, the second baffle 160, and the third baffle 170 are located on the same side of the plate 121. The third baffle 170 is respectively disposed at both ends of the first baffle 150 and the second baffle 160 along the second direction Y, and the first baffle 150 and the second baffle 160 are respectively connected to the two ends of the third baffle 170 along the third direction X. The blocking portion 122 is located between the two third baffles 170 along the second direction Y. In this embodiment, the third baffle 170 is located at both ends of the battery module along the second direction Y. In other embodiments, there are multiple third baffles 170, and the busbars 130 are respectively disposed at both ends along the second direction Y, with adjacent busbars 130 separated by the third baffles 170. Each busbar 130 has a corresponding blocking part 122 in its concave bend 131, and the blocking part 122 is disposed between two adjacent third baffles 170.

[0038] It is understood that the first baffle 150, the second baffle 160, and the third baffle 170 are collectively disposed on the periphery of the heat-conducting component 180. The first baffle 150 and the second baffle 160 are connected through the third baffle 170. The first baffle 150, the second baffle 160, and the third baffle 170 cooperate to form a closed structure to limit the circumferential movement of the heat-conducting component 180. The blocking portion 122 may be located within the closed structure formed by the three baffles or may be covered by the first baffle 150. In this embodiment, by providing the third baffle 170, the heat-conducting component 180 can be prevented from bypassing the first baffle 150 along the second direction Y and adhering to the signal acquisition component 140. The first baffle 150, the second baffle 160, and the third baffle 170 are disposed around the heat-conducting component 180, so that the baffles can fully limit the heat-conducting component 180 and confine it to a specific area, thereby preventing the heat-conducting component 180 from overflowing in any direction and improving the protection of the signal acquisition component 140 by the battery pack 100.

[0039] like Figure 2 and Figure 5 As shown, in one embodiment, the electrical isolation plate 120 further includes a partition 124, which is located on the side of the plate 121 facing away from the battery module 110 along a first direction Z. The battery pack 100 includes a plurality of busbars 130, which are spaced apart along a second direction Y, and a partition 124 is provided between adjacent busbars 130 along the second direction Y. A first baffle 150 and a blocking portion 122 are located on the same side of the partition 124 along a third direction X.

[0040] Specifically, the partition 124 protrudes from the upper surface of the plate 121. The main body portions 132 of two adjacent busbars 130 are separated by the partition 124. In this embodiment, the upper surface of the partition 124 along the first direction Z is higher than the upper surface of the main body portion 132 along the first direction Z. When a support portion 123 is provided on the plate 121 and the support portion 123 has a receiving groove 1231, the support portion 123 is located between the partition 124 and the busbar 130. When the main body portion 132 is filled with heat-conducting elements 180, the partition 124 will block and separate the heat-conducting elements 180 on two adjacent main body portions 132, preventing the heat-conducting elements 180 on the two main body portions 132 from flowing and merging with each other. Excess heat-conducting elements 180 on the main body portion 132 will be stored in the receiving groove 1231. The partition 124 separates the heat-conducting elements 180 on the main body 132, which can prevent the overflow of the heat-conducting elements 180 between the main body 132, thereby improving the uniformity of the filling of the heat-conducting elements 180 on the manifold 130.

[0041] A second aspect of this application provides an electrical device, such as... Figures 1 to 6 As shown, the electrical device includes the battery pack 100 described in any of the above embodiments. It should be noted that the electrical device can be a vehicle, a pure electric vehicle, or a hybrid vehicle, with the vehicle body as the main body and the battery pack connected to the vehicle body. The electrical device can also be an energy storage device, with a cabinet as the main body and the battery pack connected to the cabinet. Other electrical devices are also possible, which will not be listed here. It is understood that the electrical device includes all the technical solutions and beneficial effects mentioned in the above embodiments, which will not be elaborated upon here.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack having mutually perpendicular first directions (Z), second directions (Y), and a third direction (X), characterized in that, include: Battery module (110); An electrical isolation plate (120) includes a plate body (121) and a blocking part (122). Along the first direction (Z), the plate body (121) is connected to one side of the battery module (110), and the blocking part (122) is connected to the side of the plate body (121) facing away from the battery module (110). The busbar (130) includes a concave bend (131) and a plurality of main bodies (132). The concave bend (131) is connected to the main bodies (132) on both sides along the second direction (Y). The concave bend (131) is recessed relative to the main bodies (132) towards the battery module (110) along the first direction (Z). The concave bend (131) is located on the side of the plate (121) facing away from the battery module (110) along the first direction (Z). The concave bend (131) corresponds to the blocking part (122) along the third direction (X). The main bodies (132) are located on the side of the plate (121) facing away from the battery module (110) along the first direction (Z) and are electrically connected to the battery module (110). The signal acquisition unit (140) is located on the side of the plate (121) facing away from the battery module (110) along the first direction (Z) and is electrically connected to the main body (132). Part of the signal acquisition unit (140) is located on the side of the blocking part (122) facing away from the concave bend (131) along the third direction (X). A thermal management component (190) is located along the first direction (Z) on the side of the concave bend (131) and the main body (132) facing away from the battery module (110); A heat-conducting component (180) is connected to the thermal management component (190), the concave portion (131), and the main body portion (132). The heat-conducting component (180) is at least partially located between the thermal management component (190) and the concave portion (131) along the first direction (Z), and located on the side of the blocking portion (122) facing away from the signal acquisition component (140) along the third direction (X).

2. The battery pack according to claim 1, characterized in that, Along the third direction (X), on a plane perpendicular to the third direction (X), the orthographic projection of the blocking part (122) covers the orthographic projection of the concave bend (131).

3. The battery pack according to claim 2, characterized in that, The blocking portion (122) abuts against the main body portion (132) on both sides of the concave portion (131) along the second direction (Y).

4. The battery pack according to claim 1, characterized in that, The plate (121) has a first groove (1211) and a plurality of second grooves (1213) on the side facing away from the battery module (110) along the first direction (Z). The first groove (1211) is provided with the second grooves (1213) on both sides along the second direction (Y). The blocking part (122) corresponds to the first groove (1211) along the third direction (X). The concave part (131) is accommodated in the first groove (1211), and the main body part (132) is accommodated in the second grooves (1213).

5. The battery pack according to claim 4, characterized in that, Along the first direction (Z), the first groove (1211) has a first bottom wall (1212), and the second groove (1213) has a second bottom wall (1214). The first bottom wall (1212) is recessed toward the battery module (110) relative to the second bottom wall (1214).

6. The battery pack according to claim 1, characterized in that, The electrical isolation plate (120) further includes a support (123), which is connected along the first direction (Z) to the side of the plate (121) facing the battery module (110), and the support (123) abuts against the battery module (110).

7. The battery pack according to claim 6, characterized in that, The support (123) has a receiving groove (1231) inside. The plate (121) has an opening (1215) on the side facing away from the battery module (110) along the first direction (Z). The receiving groove (1231) communicates with the opening (1215). The main body (132) partially blocks the opening (1215) along the first direction (Z).

8. The battery pack according to claim 7, characterized in that, The plate (121) has a second groove (1213) on the side facing away from the battery module (110) along the first direction (Z), the opening (1215) is connected to the second groove (1213), and the main body (132) is housed in the second groove (1213) and partially covers the opening (1215).

9. The battery pack according to claim 8, characterized in that, At least a portion of the heat-conducting element (180) is housed in the receiving groove (1231).

10. The battery pack according to claim 1, characterized in that, The battery pack also includes a first baffle (150), which is located on the side of the plate (121) facing away from the battery module (110) along the first direction (Z), and a portion of the first baffle (150) is located on the side of the blocking portion (122) facing away from the concave portion (131) along the third direction (X).

11. The battery pack according to claim 10, characterized in that, Along the first direction (Z), at least a portion of the first baffle (150) is located on the side of the blocking portion (122) facing away from the plate (121) and presses against the blocking portion (122).

12. The battery pack according to claim 10, characterized in that, The battery pack also includes a second baffle (160), which is located on the side of the concave portion (131) and the main body portion (132) facing away from the first baffle (150) along the third direction (X). The first baffle (150) and the second baffle (160) are spaced apart along the third direction (X).

13. The battery pack according to claim 12, characterized in that, The battery pack further includes a third retaining element (170), which is located on the side of the plate (121) facing away from the battery module (110) along the first direction (Z). The third retaining element (170) is provided at both ends of the first retaining element (150) and the second retaining element (160) along the second direction (Y). The first retaining element (150) and the second retaining element (160) are respectively connected to both ends of the third retaining element (170) along the third direction (X). The blocking part (122) is located between the two third blocking parts (170) along the second direction (Y).

14. The battery pack according to claim 10, characterized in that, The electrical isolation plate (120) further includes a partition (124), which is located on the side of the plate body (121) facing away from the battery module (110) along the first direction (Z). The battery pack includes a plurality of busbars (130), which are spaced apart along the second direction (Y). The partition (124) is located between two adjacent main body portions (132) along the second direction (Y). The first baffle (150) and the blocking portion (122) are located on the same side of the partition (124) along the third direction (X).

15. An electrical appliance, characterized in that, Includes the battery pack as described in any one of claims 1 to 14.

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