Battery pack and electric device

Abstract

The utility model discloses a battery pack and a power utilization device, the battery pack has a first direction and a second direction which are intersected, the battery pack comprises a sampling terminal, the sampling terminal comprises a body, a connecting part, a voltage sampling part and a temperature sampling part, the connecting part is arranged on one side of the body along the first direction, and the connecting part is connected with the body; the connecting part is provided with a containing space, and the containing space penetrates through the side, away from the body in the first direction, of the connecting part and penetrates through the side, away from the body in the second direction, of the connecting part; the voltage sampling part is arranged in the accommodating space and is conductively connected with the connecting part; the temperature sampling part is arranged in the accommodating space, the temperature sampling part and the voltage sampling part are arranged at an interval, and the temperature sampling part is in insulated connection with the connecting part. The containing space penetrates through the side, away from the body in the first direction and the second direction, of the connecting part, installation of the voltage sampling part and the temperature sampling part is facilitated, voltage and temperature signals are collected through one sampling terminal, the cost is effectively reduced, the installation time is effectively shortened, and occupied space is reduced.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a battery pack and an electrical device. Background Art

[0002] The battery pack's battery management system (BMS) requires voltage sampling at locations like relays and fuses to determine their status. However, as the battery pack outputs power, the temperature of these relays and fuses rises significantly. Failure to monitor temperature and adjust output strategies in a timely manner can impact the pack's output power and even cause the fuse to blow, rendering the battery pack inoperable. Utility Model Content

[0003] Purpose of the utility model: An embodiment of the present application provides a battery pack, which aims to solve the problem that the temperature of existing relays and fuses cannot be monitored in time, thereby affecting the output power of the battery pack, and even directly causing the battery pack to be unable to continue working due to the melting of the fuse; another purpose of the embodiment of the present application is to provide an electrical device.

[0004] Technical solution: A battery pack according to an embodiment of the present application has a first direction and a second direction intersecting each other, and includes a sampling terminal. The sampling terminal includes:

[0005] ontology;

[0006] a connecting portion, disposed on one side of the body along the first direction and connected to the body; the connecting portion having an accommodating space, the accommodating space penetrating the side of the connecting portion away from the body along the first direction, and the accommodating space penetrating the side of the connecting portion along the second direction;

[0007] a voltage sampling portion, disposed in the accommodating space and conductively connected to the connecting portion;

[0008] The temperature sampling part is arranged in the accommodating space, the temperature sampling part and the voltage sampling part are spaced apart, and the temperature sampling part is insulated and connected to the connecting part.

[0009] In some embodiments, the sampling terminal has a third direction intersecting the first direction and the second direction respectively, and the connecting portion includes:

[0010] a bottom plate, disposed on one side of the body along the first direction, the bottom plate being connected to the body;

[0011] a first side plate, disposed on one side of the bottom plate along the second direction and connected to the bottom plate;

[0012] The second side plate is arranged opposite to the first side plate along the third direction and connected to the bottom plate; the bottom plate, the first side plate and the second side plate enclose the accommodating space.

[0013] In some embodiments,

[0014] The first side panel comprises:

[0015] The first section is connected to the bottom plate;

[0016] a second section connected to the first section and bent relative to the first section; the second section is disposed on a side of the bottom plate facing the main body along the first direction;

[0017] The second side panel comprises:

[0018] a third section connected to the bottom plate, the third section and the first section being spaced apart along the third direction;

[0019] a fourth section connected to the third section, the fourth section being bent relative to the third section, the fourth section being disposed on a side of the bottom plate facing the main body along the first direction, and the fourth section being disposed opposite to the second section along the third direction;

[0020] The first section, the second section, the bottom plate, the third section and the fourth section form the accommodating space.

[0021] In some embodiments, the fourth section is connected to the second section to cover a side of the accommodating space facing the main body.

[0022] In some embodiments, the sampling terminal further includes a limiting portion, the limiting portion is connected to the bottom plate, and along the second direction, the limiting portion is protrudingly disposed on a side of the bottom plate away from the accommodating space.

[0023] In some embodiments, the main body is integrally connected to the connecting portion, and the main body is integrally connected to the limiting portion.

[0024] In some embodiments, the sampling terminal further includes a thermally conductive adhesive layer, which is disposed in the accommodating space. The thermally conductive adhesive layer is respectively connected to the connecting portion, the voltage sampling portion, and the temperature sampling portion. The voltage sampling portion and the temperature sampling portion are both disposed in the thermally conductive adhesive layer.

[0025] In some embodiments, the sampling terminal further includes:

[0026] a first wire connected to the voltage sampling unit, wherein at least a portion of the first wire is disposed outside the accommodating space along the first direction;

[0027] A second wire is connected to the temperature sampling portion, and at least a portion of the second wire is disposed outside the accommodating space along the first direction.

[0028] In some embodiments, the body has a through hole, and the through hole penetrates the body along the second direction.

[0029] Accordingly, an electrical device described in an embodiment of the present application includes a battery pack as described in any one of the aforementioned embodiments.

[0030] Beneficial effects: Compared with the prior art, a battery pack according to an embodiment of the present application has a first direction and a second direction intersecting each other, and includes a sampling terminal, which includes a main body, a connecting portion, a voltage sampling portion, and a temperature sampling portion. The connecting portion is arranged on one side of the main body along the first direction, and the connecting portion is connected to the main body; the connecting portion has an accommodating space, and the accommodating space passes through the side of the connecting portion away from the main body along the first direction, and the accommodating space passes through the side of the connecting portion along the second direction. The voltage sampling portion is arranged in the accommodating space and is conductively connected to the connecting portion; the temperature sampling portion is arranged in the accommodating space and is spaced apart from the voltage sampling portion, and the temperature sampling portion is insulated from the connecting portion. The present application provides an accommodating space in the connecting portion, and the accommodating space runs through one side of the connecting portion along the first direction and the second direction, so that the voltage sampling portion and the temperature sampling portion are installed and integrated in the connecting portion. At this time, only one sampling terminal is required to collect voltage signals and temperature signals. It can not only monitor the voltage signals and temperature signals of the sampling points in real time, but also adjust the output strategy in time according to the voltage and temperature to ensure the output power and safe operation of the battery pack; at the same time, compared with two sampling terminals for sampling temperature and voltage signals respectively, it reduces the use of copper busbars, effectively reduces costs and installation hours, and can effectively reduce space occupancy, which is conducive to space optimization.

[0031] Compared with the prior art, the electric device of the present application includes a battery pack as described in any of the above embodiments. It is understood that the electric device of the present application includes all the technical features and technical effects of the battery pack in the above embodiments, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 This is a schematic diagram of the overall structure of a sampling terminal according to an embodiment of the present application;

[0034] Figure 2 This is a structural diagram of a body and a connecting portion of a sampling terminal according to an embodiment of the present application;

[0035] Figure 3 This is a structural diagram of a sampling terminal body, a connecting portion, a first sampling portion, and a first conductive wire according to an embodiment of the present application;

[0036] Figure 4 This is a schematic structural diagram of a sampling terminal without glue filling according to an embodiment of the present application;

[0037] Figure 5 This is a schematic structural diagram of a sampling terminal after glue filling according to an embodiment of the present application;

[0038] Figure 6 This is a schematic diagram of the structure of the connection between a sampling terminal and a copper busbar in an embodiment of the present application;

[0039] Figure 7 This is a schematic structural diagram of a battery pack according to an embodiment of the present application;

[0040] Figure 8 yes Figure 7 Enlarged view of part A.

[0041] Figure numerals: 100, sampling terminal; 1, body; 11, through hole; 2, connecting part; 21, accommodating space; 22, bottom plate; 23, first side plate; 231, first section; 232, second section; 24, second side plate; 241, third section; 242, fourth section; 3, voltage sampling part; 4, temperature sampling part; 5, thermal conductive adhesive layer; 6, first wire; 7, second wire; 8, limiting part; 200, copper busbar; 300, box body; 301, accommodating cavity; X, first direction; Z, second direction; Y, third direction. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0043] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined. In the description of this application, "vertical" means completely vertical at 90° or almost completely vertical, for example, an angle within the range of 80° to 100° is considered vertical. Similarly, "parallel" means completely parallel or almost completely parallel, for example, an angle within 10° of completely parallel is considered parallel.

[0044] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 The present application provides a battery pack having a first direction X and a second direction Z intersecting each other, and includes a sampling terminal 100. The sampling terminal 100 includes a body 1, a connecting portion 2, a voltage sampling portion 3, and a temperature sampling portion 4. The connecting portion 2 is provided on one side of the body 1 along the first direction X and is connected to the body 1. The connecting portion 2 has a receiving space 21. The receiving space 21 passes through the side of the connecting portion 2 away from the body 1 along the first direction X, and passes through the side of the connecting portion 2 away from the body 1 along the second direction Z. The voltage sampling portion 3 is provided in the receiving space 21 and is conductively connected to the connecting portion 2. The temperature sampling portion 4 is provided in the receiving space 21 and is spaced apart from the voltage sampling portion 3. The temperature sampling portion 4 is insulated from the connecting portion 2. Insulated connection means that the two are insulated and connected to each other. In other embodiments, the receiving space 21 passes through the side of the connecting portion 2 closer to the body 1 along the second direction Z.

[0045] In the embodiment of the present application, by providing an accommodating space 21 in the connecting portion 2, and the accommodating space 21 passes through the side of the connecting portion 2 away from the main body 1 along the first direction X, and the side of the connecting portion 2 away from the main body 1 along the second direction Z, the voltage sampling portion 3 and the temperature sampling portion 4 are conveniently installed and integrated in the connecting portion 2. At this time, only one sampling terminal 100 is required to collect voltage signals and temperature signals, which can not only monitor the voltage signals and temperature signals of the sampling points in real time, but also adjust the output strategy in time according to the voltage and temperature to ensure the output power and safe operation of the battery pack; at the same time, compared with two sampling terminals 100 for sampling temperature and voltage signals respectively, the use of the copper bus 200 is reduced, the cost and installation time are effectively reduced, and the space occupation can be effectively reduced, which is conducive to space optimization.

[0046] In some optional embodiments, the battery pack includes a housing 300, which typically houses a plurality of single cells arranged in an array and a high-voltage distribution box, which is electrically connected to the single cells. The high-voltage distribution box contains relays and fuses to control the battery pack's output and ensure its safety. Voltage sampling of the relays and fuses is necessary to determine the status of the high-voltage circuit relays and fuses. However, the temperature rise of the relays and fuses during battery pack output is high. In this case, temperature sampling can be added to the fuses and relays to collect real-time temperature data for overall package determination and timely adjustment of output strategies. In this case, temperature and voltage sampling can be performed using two terminals, requiring two sampling installation points on the relays and fuses. This allows for timely sampling of temperature and voltage signals from the relays and fuses. However, this requires an additional copper busbar 200 to lock the sampling terminal 100, resulting in increased cost and labor. Furthermore, a larger space is required to accommodate the copper busbar 200 and sampling terminal 100, hindering space optimization. The present application adopts a connection part 2 of a sampling terminal 100 to accommodate the voltage sampling part 3 and the temperature sampling part 4 at the same time, realizing the integration of voltage sampling, temperature sampling and terminals. At this time, only one sampling installation point is required, which reduces the use of the copper bus 200, effectively reduces the cost, saves installation time, and reduces the space occupied, which is beneficial to the space optimization of the high-voltage distribution box, and further beneficial to the optimization of the internal space of the battery pack.

[0047] It should be noted that the sampling terminal 100 in the embodiment of the present application can be used in all locations in the battery pack where voltage sampling and temperature sampling are required, and is not limited to the high-voltage distribution box.

[0048] It should also be noted that, in the embodiment of the present application, the accommodating space 21 penetrates the side of the accommodating space 21 away from the main body 1 along the first direction X and the second direction Z respectively. At this time, it is convenient for the voltage sampling part 3 and the temperature sampling part 4 to be installed into the accommodating space 21, and it also provides operating space for the connection between the voltage sampling part 3 and the temperature sampling part 4 and the connecting part 2.

[0049] Furthermore, the voltage sampling portion 3 is a conductor, and the sampling terminal 100 is also a conductor. Therefore, the voltage sampling portion 3 is preferably directly welded to the connecting portion 2 of the sampling terminal 100. This ensures the stability of the connection between the two, while also ensuring the stability of the conductive connection between the sampling terminal 100 and the voltage sampling portion 3. In the embodiment of the present application, the accommodating space 21 extends through the side of the connecting portion 2 away from the body 1 along the first direction X. In this case, the side of the connecting portion 2 away from the body 1 along the first direction X has an opening, which facilitates the installation of the voltage sampling portion 3 and the temperature sampling portion 4 into the accommodating space 21; the accommodating space 21 extends through the side of the connecting portion 2 away from the body 1 along the second direction Z. In this case, the side of the connecting portion 2 away from the body 1 along the second direction Z also has an opening. This opening allows a welding joint, etc., to be inserted into the accommodating space 21 to weld the voltage sampling portion 3 to the connecting portion 2, thereby achieving a welded connection between the connecting portion 2 and the voltage sampling portion 3. Furthermore, the two openings can be directly connected. In this case, the accommodating space 21 can be a structure with four closed sides and two intersecting sides connected, which is more convenient for connecting the voltage sampling part 3 and the temperature sampling part 4 with the connecting part 2.

[0050] It should also be noted that the temperature sampling portion 4 of the embodiment of the present application is arranged in the accommodating space 21 and is insulated from the connecting portion 2. At this time, signal interference caused by electrical conduction between the temperature sampling portion and the connecting portion 2 can be avoided. Furthermore, the temperature sampling portion 4 of the embodiment of the present application and the connecting portion 2 can be insulated by using an insulating material between the connecting portion 2 and the temperature sampling portion to isolate the two from each other. This can prevent mutual interference between the temperature acquisition circuit and the voltage acquisition circuit and accidental flow of current, thereby ensuring the accuracy of temperature sampling and voltage sampling, and also ensuring the safety and reliability of the sampling terminal 100 after being connected to the circuit. It should also be noted that the above-mentioned insulating material can be an insulating sleeve, insulating tape, insulating glue layer, insulating gasket, etc. By wrapping the temperature sampling portion 4 with the above-mentioned insulating material and connecting it to the connecting portion 2, temperature sampling can be achieved while avoiding mutual interference of sampling information.

[0051] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5In some embodiments, the sampling terminal 100 has a third direction Y intersecting the first direction X and the second direction Z. The connecting portion 2 includes a bottom plate 22, a first side plate 23, and a second side plate 24. The bottom plate 22 is disposed on one side of the body 1 along the first direction X and is connected to the body 1. The first side plate 23 is disposed on one side of the bottom plate 22 along the second direction Z and is connected to the bottom plate 22. At least a portion of the second side plate 24 is disposed opposite the first side plate 23 along the third direction Y and is connected to the bottom plate 22. The bottom plate 22, the first side plate 23, and the second side plate 24 enclose the accommodating space 21.

[0052] In the embodiment of the present application, the accommodating space 21 is enclosed by the first side plate 23, the second side plate 24 and the bottom plate 22. At this time, the first side plate 23, the second side plate 24 and the bottom plate 22 enclose the opening of the connecting portion 2 along the first direction X away from the main body 1, and the first side plate 23 and the second side plate 24 enclose the opening of the connecting portion 2 along the second direction Z away from the main body 1. This structure is conducive to molding and facilitates the installation and connection of the temperature sampling portion 4 and the voltage sampling portion 3.

[0053] It should be noted that the accommodating space 21 can be enclosed by a base plate 22, a first side plate 23, and a second side plate 24. In this case, the base plate 22 is used to support and connect to the voltage sampling unit 3 to enable voltage signal acquisition. The base plate 22 also supports the temperature sampling unit 4. During sampling, the base plate 22 contacts and connects to the copper busbar 200, enabling rapid temperature transfer to the temperature sampling unit 4, thereby achieving more accurate temperature acquisition. The first side plate 23 and the second side plate 24 are used to enclose the accommodating space 21, primarily to position the temperature sampling unit 4 and the voltage sampling unit 3 between the first and second side plates 23, 24, and the base plate 22, thereby achieving integration of the sampling terminal 100, the temperature sampling unit 4, and the voltage sampling unit 3, effectively saving space. Furthermore, the first and second side plates 23, 24 are also used to define the insulating material used to achieve the insulated connection between the temperature sampling unit 4 and the connecting portion 2, confining the insulating material within the accommodating space 21.

[0054] It should also be noted that the first side plate 23 and the second side plate 24 are both located on the same side of the bottom plate 22 and the body 1. At this time, when the sampling terminal 100 is connected to the copper busbar 200, the first side plate 23 and the second side plate 24 can avoid interference with the copper busbar 200.

[0055] See also Figure 2In some embodiments, the first side panel 23 includes a first section 231 and a second section 232, the first section 231 is connected to the bottom panel 22, the second section 232 is connected to the first section 231, and the second section 232 is bent relative to the first section 231; the second section 232 is provided on the side of the bottom panel 22 facing the body 1 along the first direction X; the second side panel 24 includes a third section 241 and a fourth section 242, the third section 241 is connected to the bottom panel 22, the third section 241 ... The segments 231 are arranged at intervals along the third direction Y; the fourth segment 242 is connected to the third segment 241, and the fourth segment 242 is bent relative to the third segment 241. The fourth segment 242 is arranged on the side of the bottom plate 22 facing the main body 1 along the first direction X, and the fourth segment 242 and the second segment 232 are arranged opposite to each other along the third direction Y; wherein, the first segment 231, the second segment 232, the bottom plate 22, the third segment 241 and the fourth segment 242 enclose the accommodating space 21.

[0056] In the embodiment of the present application, the first side plate 23 is divided into a first section 231 and a second section 232, and the second side plate 24 is divided into a third section 241 and a fourth section 242, which, in conjunction with the bottom plate 22, facilitates the closure of the four sides of the accommodating space 21, thereby facilitating the positioning and limiting of the voltage sampling part 3 and the temperature sampling part 4, and preventing the voltage sampling part 3 and the temperature sampling part 4 from passing out of the accommodating space 21 when connected to the connecting part 2.

[0057] In some embodiments, the fourth section 242 is connected to the second section 232 to cover the side of the accommodating space 21 facing the main body 1 .

[0058] In the embodiment of the present application, the fourth section 242 is connected to the second section 232. Together with the first section 231 and the third section 241, they can block the three sides of the accommodating space 21, thereby further facilitating the positioning and protection of the temperature sampling unit 4 and the voltage sampling unit 3, thereby preventing interference from external factors during signal acquisition. Furthermore, if the insulating material is a highly fluid colloid, this can effectively position the insulating material and prevent glue overflow.

[0059] It should be noted that the fourth section 242 is connected to the second section 232. At this time, the fourth section 242 and the second section 232 can be connected in a manner that is close to each other along the third direction Y, or the fourth section 242 and the second section 232 can be partially overlapped along the first direction X. In this way, the side of the accommodating space 21 facing the main body 1 can be sealed.

[0060] Please refer to Figures 1-6In some embodiments, the sampling terminal 100 further includes a limiting portion 8 , which is connected to the bottom plate 22 and protrudes along the second direction Z on a side of the bottom plate 22 away from the accommodating space 21 .

[0061] In the embodiment of the present application, the limiting portion 8 is provided to abut against the edge of the copper busbar 200 when the sampling terminal 100 is connected to the copper busbar 200 to achieve mutual limiting, effectively preventing the sampling terminal 100 from rotating, thereby ensuring structural stability.

[0062] In some embodiments, the main body 1 is integrally connected to the connecting portion 2 , and the main body 1 is integrally connected to the limiting portion 8 .

[0063] In the embodiment of the present application, the main body 1, the limiting portion 8 and the connecting portion 2 are integrally connected, which is easier to produce and form, improves production efficiency, and can ensure the stability of current flow.

[0064] In addition, it should be noted that the body 1, connecting portion 2, and limiting portion 8 of the sampling terminal 100 can be integrally stamped. Specifically, they can be directly stamped on a flat plate. In this case, the body 1, limiting portion 8, bottom plate 22, first side plate 23, and second side plate 24 can be directly formed on a flat surface. The first and second side plates 24 are located on either side of the bottom plate 22, and only a portion of the first and second side plates 23, 24 are connected to the bottom plate 22. The limiting portion 8 and the first side plate 23 are located on the same side of the bottom plate 22. The first and second side plates 23, 24 are then bent toward one side of the bottom plate 22, so that the first and second side plates 23, 24 are opposite each other. The second section 232 is then bent toward the fourth section 242, and the fourth section 242 is then bent toward the second section 232. Finally, the limiting portion 8 is bent in a direction opposite to the bending direction of the first side plate 23, thereby forming an integrally connected connecting portion 2 and body 1.

[0065] Please refer to Figure 1 and Figure 5 In some embodiments, the sampling terminal 100 further includes a thermally conductive adhesive layer 5 , which is disposed in the accommodating space 21 . The thermally conductive adhesive layer 5 is respectively connected to the connecting portion 2 , the voltage sampling portion 3 , and the temperature sampling portion 4 . The voltage sampling portion 3 and the temperature sampling portion 4 are both disposed in the thermally conductive adhesive layer 5 .

[0066] In the embodiment of the present application, by filling the accommodating space 21 with a thermally conductive adhesive layer 5, on the one hand, the temperature sampling portion 4 can be wrapped, thereby achieving insulation isolation between the temperature sampling portion 4 and the connecting portion 2 and the voltage sampling portion 3; on the other hand, after the thermally conductive adhesive layer 5 is cured, the temperature sampling portion 4 is fixed in the accommodating space 21, ensuring the structural stability of the sampling terminal 100; and the thermally conductive adhesive layer 5 has good thermal conductivity, which can fully transfer the temperature to the temperature sampling portion 4, thereby achieving more accurate collection of temperature information.

[0067] Please refer to Figure 1 、 Figure 3-Figure 6 In some embodiments, the sampling terminal 100 further includes a first wire 6 and a second wire 7. The first wire 6 is connected to the voltage sampling unit 3, and at least a portion of the first wire 6 is disposed outside the accommodating space 21 along the first direction X. The second wire 7 is connected to the temperature sampling unit 4, and at least a portion of the second wire 7 is disposed outside the accommodating space 21 along the first direction X. There are two second wires 7.

[0068] In the embodiment of the present application, by providing the first wire 6 and the second wire 7, the voltage information and temperature information collected by the voltage sampling unit 3 and the temperature sampling unit 4 can be promptly transmitted to the corresponding control component, thereby using the first wire 6 and the second wire 7 to achieve a more flexible setting of the sampling terminal 100, and only the length of the first wire 6 and the second wire 7 needs to be adjusted accordingly.

[0069] Please refer to Figures 1-6 In some embodiments, the body 1 has a through hole 11, and the through hole 11 passes through the body 1 along the second direction Z.

[0070] In the embodiment of the present application, by providing the through hole 11 , the body 1 can be locked to the copper bus 200 using bolts, thereby achieving a detachable connection between the sampling terminal 100 and the copper bus 200 , thereby improving the application flexibility of the sampling terminal 100 and improving assembly efficiency.

[0071] Of course, the main body 1 of the embodiment of the present application can also be connected to the copper bus 200 by welding.

[0072] Please refer to Figure 2-Figure 5 The assembly steps of the sampling terminal 100 of the embodiment of the present application are as follows: first, prepare the voltage sampling part 3 connected to the first wire 6, the temperature sampling part 4 connected to the second wire 7, and the body 1 and the connecting part 2. Figure 2 Then place the voltage sampling unit 3 into the accommodating space 21 and weld it to the bottom plate 22, as shown Figure 3 Then place the temperature sampling portion 4 into the accommodating space 21, keeping the temperature sampling portion 4 and the voltage sampling portion 3 spaced apart, as shown Figure 4 As shown; finally, the thermal conductive adhesive layer 5 is injected into the accommodating space 21. During this process, the temperature sampling portion 4 is kept spaced from the connecting portion 2 and the voltage sampling portion 3, so that the temperature sampling portion 4 is wrapped by the thermal conductive adhesive layer 5 and the voltage sampling portion 3 is covered by the thermal conductive adhesive layer 5 to ensure insulation and avoid overflow of the thermal conductive adhesive layer 5 as much as possible. After the thermal conductive adhesive layer 5 is cured, the sampling terminal 100 is assembled. Figure 5 In one embodiment, the temperature sampling unit 4 can be a thermal sensor such as a thermistor.

[0073] Accordingly, an electrical device described in an embodiment of the present application includes a battery pack as described in any one of the aforementioned embodiments.

[0074] It can be understood that the electrical device of the present application includes all the technical features and technical effects of the battery pack in the aforementioned embodiments, which will not be repeated here.

[0075] Of course, the electrical devices referred to in this application can be application devices such as vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys and electric tools. Vehicles can be new energy vehicles, which can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.; spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc. The embodiments of this application do not impose any special restrictions on the above-mentioned electrical devices.

[0076] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0077] The above is a detailed introduction to a battery pack and an electrical device provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack, characterized in that: The device has a first direction and a second direction intersecting each other, and includes a sampling terminal, wherein the sampling terminal includes: ontology; a connecting portion, disposed on one side of the body along the first direction and connected to the body; the connecting portion having an accommodating space, the accommodating space penetrating the side of the connecting portion away from the body along the first direction, and the accommodating space penetrating the side of the connecting portion along the second direction; a voltage sampling portion, disposed in the accommodating space and conductively connected to the connecting portion; The temperature sampling part is arranged in the accommodating space, the temperature sampling part and the voltage sampling part are spaced apart, and the temperature sampling part is insulated and connected to the connecting part.

2. The battery pack according to claim 1, wherein: The sampling terminal has a third direction intersecting the first direction and the second direction respectively, and the connecting portion includes: a bottom plate, disposed on one side of the body along the first direction, the bottom plate being connected to the body; a first side plate, disposed on one side of the bottom plate along the second direction and connected to the bottom plate; The second side plate is arranged opposite to the first side plate along the third direction and connected to the bottom plate; the bottom plate, the first side plate and the second side plate enclose the accommodating space.

3. The battery pack according to claim 2, wherein: The first side panel comprises: The first section is connected to the bottom plate; a second section connected to the first section and bent relative to the first section; the second section is disposed on a side of the bottom plate facing the main body along the first direction; The second side panel comprises: a third section connected to the bottom plate, the third section and the first section being spaced apart along the third direction; a fourth section connected to the third section, the fourth section being bent relative to the third section, the fourth section being disposed on a side of the bottom plate facing the main body along the first direction, and the fourth section being disposed opposite to the second section along the third direction; The first section, the second section, the bottom plate, the third section and the fourth section form the accommodating space.

4. The battery pack according to claim 3, wherein: The fourth section is connected to the second section and is used to cover a side of the accommodating space facing the main body.

5. The battery pack according to claim 2, wherein: The sampling terminal further includes a limiting portion connected to the bottom plate, and along the second direction, the limiting portion is protrudingly disposed on a side of the bottom plate away from the accommodating space.

6. The battery pack according to claim 5, characterized in that: The main body is integrally connected to the connecting portion, and the main body is integrally connected to the limiting portion.

7. The battery pack according to claim 1, wherein: The sampling terminal further includes a thermally conductive adhesive layer, which is disposed in the accommodating space. The thermally conductive adhesive layer is respectively connected to the connecting portion, the voltage sampling portion, and the temperature sampling portion. The voltage sampling portion and the temperature sampling portion are both disposed in the thermally conductive adhesive layer.

8. The battery pack according to claim 1, wherein: The sampling terminal further includes: a first wire connected to the voltage sampling unit, wherein at least a portion of the first wire is disposed outside the accommodating space along the first direction; A second wire is connected to the temperature sampling portion, and at least a portion of the second wire is disposed outside the accommodating space along the first direction.

9. The battery pack according to claim 1, wherein: The body has a through hole, and the through hole penetrates the body along the second direction.

10. An electrical device, characterized in that: Comprising a battery pack as described in any one of claims 1 to 9.

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