Battery pack and electric equipment

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery pack and electric equipment, the battery pack comprises a box body, an electrical integration module and a cover body, a battery module is arranged in the box body, and the battery module is provided with a positive electrode output end and a negative electrode output end; the electrical integration module is arranged above the battery module, the electrical integration module is provided with a first output end and a second output end, and the first output end is electrically connected with the negative electrode output end; the cover body is arranged above the box body, the electrical integration module is located between the box body and the cover body, a first high-voltage connecting column and a second high-voltage connecting column are arranged in the cover body, and the first high-voltage connecting column and the second high-voltage connecting column have a first state close to the box body and a second state away from the box body; the first high-voltage connecting column is in plug-in fit with the positive output end in the first direction, and the second high-voltage connecting column is in plug-in fit with the second output end in the first direction. According to the battery pack, the overall height size of the battery pack can be reduced, installation of bolts, conductive wires and the like can be reduced, and the integration level and safety of the battery pack are improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a battery pack and electrical equipment. Background Technology

[0002] Current battery packs typically use sealing rings to seal the casing and connectors, followed by bolt fastening. This bolt connection requires additional flanges, and the seal at the bolt points is frequently a point of airtightness failure. Furthermore, the internal components of the battery pack are generally connected using bolts, resulting in a relatively large overall height, which is detrimental to miniaturization design. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a battery pack and an electrical device.

[0004] A first aspect of this utility model provides a battery pack, comprising:

[0005] The housing contains a battery module, which has a positive output terminal and a negative output terminal.

[0006] An electrical integration module is disposed above the battery module. The electrical integration module has a first output terminal and a second output terminal on opposite sides. The first output terminal is electrically connected to the negative output terminal.

[0007] A cover is disposed above the housing, and the electrical integrated module is located between the housing and the cover. A first high-voltage connecting post and a second high-voltage connecting post are disposed inside the cover. The first high-voltage connecting post and the second high-voltage connecting post have a first state close to the housing and a second state far away from the housing. In the first state, the first high-voltage connecting post is inserted into the positive output terminal along the first direction, and the second high-voltage connecting post is inserted into the second output terminal along the first direction.

[0008] The battery pack provided by this utility model has a simple structure, which minimizes the height of the cover and reduces the overall height of the battery pack. It also reduces the need for bolts and wiring harnesses, saving costs and improving the integration and safety of the battery pack. In this way, the electrical integration module can be pre-assembled with the cover, and the assembly of the battery module and the electrical integration module can be completed simply by plugging in a few output terminals. During the battery pack assembly process, the output terminal plugging steps can be completed simultaneously with the cover and housing assembly steps.

[0009] In addition, the battery pack of this utility model may also have the following additional technical features:

[0010] Preferably, the first high-voltage connection post includes a first post body, the axis of the first post body is perpendicular to the first direction, and a first connection portion extending along the first direction is provided at one end of the first post body near the electrical integrated module; the positive output terminal is provided with a first socket, and in the first state, the first connection portion and the first socket are inserted and engaged along the first direction.

[0011] The second high-voltage connection column includes a second column body, the axis of which is perpendicular to the first direction. The end of the second column body near the electrical integrated module is provided with a second connection portion extending along the first direction. The second output terminal (132) includes a first mounting hole. In the first state, the second connection portion is inserted into the first mounting hole along the first direction.

[0012] Preferably, the length of the first connecting portion is greater than the length of the second connecting portion, and in the first state, the upper end face of the first column body is flush with the upper end face of the second column body.

[0013] Preferably, the electrical integration module is provided with a clearance opening, and the first connection part is disposed at the clearance opening and is plugged into the first socket.

[0014] Preferably, the first high-voltage connector is a positive high-voltage connector, and the second high-voltage connector is a negative high-voltage connector.

[0015] Preferably, the electrical integration module has a third state close to the battery module and a fourth state far away from the battery module. In the third state, the first output terminal and the negative output terminal are plugged into each other along a first direction.

[0016] Preferably, the first output terminal includes a connecting plate, the connecting plate is fixedly connected to the electrical integrated module, the connecting plate extends along a second direction toward a side away from the electrical integrated module, the second direction is perpendicular to the first direction, and the connecting plate is provided with a plug-in portion extending along the first direction;

[0017] The negative output terminal is provided with a second socket, and the plug-in part is plugged into the second socket along the first direction.

[0018] Preferably, the electrical integration module and the battery module are respectively provided with a signal acquisition plug and a signal acquisition slot on their adjacent sides. In the third state, the signal acquisition plug and the signal acquisition slot are plugged in and engaged along the first direction.

[0019] Preferably, the cover includes a side wall, the upper end of the side wall is provided with a top wall, a plurality of support columns are provided on the top wall, and the electrical integration module is provided with a plurality of second mounting holes corresponding to the positions of the support columns, and the support columns and the second mounting holes are inserted and engaged along the first direction.

[0020] A second aspect of this utility model is to provide an electrical device, which includes the battery pack described in any embodiment of this application.

[0021] Additional aspects and advantages of this 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

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 A perspective view of the battery pack provided in an embodiment of this application;

[0024] Figure 2 This is a structural diagram of the battery pack after removing the cover and casing, provided in an embodiment of this application.

[0025] Figure 3 This is an assembly structure diagram of the battery module and housing provided in the embodiments of this application;

[0026] Figure 4 A schematic diagram of the internal circuit connection of the battery pack provided in an embodiment of this application;

[0027] Figure 5 Structural diagrams of the first high-voltage connecting column and the second high-voltage connecting column provided in the embodiments of this application;

[0028] Figure 6 A top view of the electrical integration module provided in the embodiments of this application;

[0029] Figure 7 A bottom view of the electrical integrated module provided in the embodiments of this application;

[0030] Figure 8 A side view of the electrical integration module provided in an embodiment of this application;

[0031] Figure 9 A bottom view of the cover provided in an embodiment of this application;

[0032] Figure 10 A side view of the cover provided in an embodiment of this application.

[0033] In the above diagram: 100 Battery pack; 110 Housing; 120 Battery module; 121 Positive output terminal; 122 Negative output terminal; 123 Signal acquisition plug;

[0034] 130 Electrical integrated module; 131 First output terminal; 1311 Connecting plate; 1312 Plug-in part; 132 Second output terminal; 133 Clearance opening; 134 Signal acquisition slot; 135 Second mounting hole;

[0035] 140 Cover; 141 Side wall; 1411 First through hole; 1412 Second through hole; 142 Top wall; 1421 Support column;

[0036] 150 First high-voltage connecting column; 151 First column body; 1510 Conductive section; 1511 Axial limiting section; 1512 Circumferential limiting section; 1513 Connecting section; 152 First connecting part;

[0037] 160 Second high-voltage connecting column; 161 Second column body; 162 Second connecting part;

[0038] 170 Low-pressure connection column. Detailed Implementation

[0039] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0042] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open and encompassing, that is, "including, but not limited to".

[0043] In the description of this specification, the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0045] Existing battery packs 100 generally include a housing 110, an electrical integration module 130, and a cover 140. The housing 110 houses the battery module 120, which is typically electrically connected to the electrical integration module 130 using bolts and conductive wires. Therefore, the cover 140 requires space for the installation of bolts and conductive wires, resulting in a relatively large height for the cover 140. This, in turn, leads to a larger overall height for the battery pack 100, hindering its miniaturization design. Furthermore, a connector (not shown in the figure) is mounted on the outside of the housing 110 of the battery pack 100. This connector is connected to the housing 110 using bolts, and the sealing at the bolted connection is often a point of airtightness failure.

[0046] To solve the above technical problems, such as Figures 1 to 4 As shown, in a first aspect, this utility model provides a battery pack 100, comprising:

[0047] The housing 110 contains a battery module 120, which has a positive output terminal 121 and a negative output terminal 122.

[0048] An electrical integration module 130 is disposed above the battery module 120. The electrical integration module 130 has a first output terminal 131 and a second output terminal 132 on opposite sides. The first output terminal 131 is electrically connected to the negative output terminal.

[0049] A cover 140 is disposed above the housing 110. The electrical integrated module 130 is located between the housing 110 and the cover 140. A first high-voltage connecting post 150 and a second high-voltage connecting post 160 are disposed inside the cover 140. The first high-voltage connecting post 150 and the second high-voltage connecting post 160 have a first state close to the housing 110 and a second state far away from the housing 110. In the first state, the first high-voltage connecting post 150 is inserted into the positive output terminal 121 along the first direction, and the second high-voltage connecting post 160 is inserted into the second output terminal 132 along the first direction.

[0050] Specifically, a battery module 120 is installed inside the housing 110. The battery module 120 is composed of multiple individual battery cells connected in series and parallel. The battery module 120 has a positive output terminal 121 and a negative output terminal 122 at its top. The axes of both the positive output terminal 121 and the negative output terminal 122 are parallel to a first direction, wherein the first direction is... Figure 1 The z-direction in the equation.

[0051] The electrical integration module 130 can be a modular structure integrating BMS (Battery Management System) devices, circuit breaker detection elements, and other electrical components to reduce wiring harness arrangement. The electrical integration module 130 is located above the battery module 120. The electrical integration module 130 has a first output terminal 131 and a second output terminal 132 offset on both sides along a second direction. The second direction is a plane direction perpendicular to the first direction; for example, the second direction could be... Figure 1 The first output terminal 131 is located close to the negative output terminal 122 and is electrically connected to the negative output terminal 122 to transmit electrical signals. That is, the first output terminal 131 serves as the output terminal of the negative signal of the battery module 120 to transmit electrical signals. The second output terminal 132 is located away from the positive output terminal 121 and is located on the electrical integrated module 130. The second output terminal 132 can be electrically connected to the second high-voltage connection post 160. That is, the second output terminal 132 serves as the output terminal of the negative signal of the battery pack 100 to transmit signals.

[0052] The cover 140 is injection molded and is positioned above the housing 110. The edges of the cover 140 can be screwed into the side walls 141 of the housing 110. Multiple bolts can be used to connect the cover 140 to the side walls 141 of the housing 110. The electrical integration module 130 is located inside the connection between the cover 140 and the housing 110. A first high-voltage connection post 150 and a second high-voltage connection post 160 are provided on the side wall 141 of the cover 140, which is closer to the positive output terminal 121 along the second direction. The first high-voltage connecting post 150 and the second high-voltage connecting post 160 have a first state close to the housing 110 and a second state away from the housing 110. In the first state, one end of the first high-voltage connecting post 150 passes through the side wall 141 of the cover 140 and is plugged into the connector, while the other end is plugged into the positive output terminal 121 in the first direction to realize the electrical connection between the first high-voltage connecting post 150 and the positive output terminal 121. This eliminates the need for bolts and conductive wires to connect the first high-voltage connecting post 150 and the positive output terminal 121, saving space occupied by bolts and conductive wires, reducing safety hazards associated with conductive wire connections, and improving the safety of the battery pack 100.

[0053] One end of the second high-voltage connecting post 160 passes through the side wall 141 of the cover 140 and is plugged into the connector. The other end is plugged into the second output terminal 132 along the first direction to realize the electrical connection between the second high-voltage connecting post 160 and the second output terminal 132. This eliminates the need for bolts and conductive wires to connect the second high-voltage connecting post 160 and the second output terminal 132, allowing the battery module 120, the electrical integration module 130, and the connector to form a complete circuit. It also saves space occupied by bolts and conductive wires, reduces safety hazards associated with conductive wire connections, and improves the safety of the battery pack 100.

[0054] It should be noted that, as Figure 1As shown, a low-voltage connecting post 170 is also provided on the side wall 141 of the cover 140. The low-voltage connecting post 170, the first high-voltage connecting post 150, and the second high-voltage connecting post 160 are located on the same side wall 141, and the low-voltage connecting post 170 is located between the first high-voltage connecting post 150 and the second high-voltage connecting post 160. The low-voltage connecting post 170 is a low-voltage communication pin. The low-voltage communication pin is provided through the side wall 141 of the cover 140. The part of the pin extending out of the side wall 141 of the cover 140 can be directly plugged into a connector, and the part extending into the side wall 141 of the cover 140 can be directly soldered to a wire harness. The length of the low-voltage communication pin extending into the cover 140 is less than the length of the first high-voltage connecting post 150 extending into the cover 140, and the length of the low-voltage communication pin extending into the cover 140 is less than the length of the second high-voltage connecting post 160 extending into the cover 140. Through the insertion and engagement of the first high-voltage connecting post 150, the second high-voltage connecting post 160, and the low-voltage connecting post 170 with the connector, the first high-voltage connecting post 150 is connected to the battery module 120, and the second high-voltage connecting post 160 is connected to the electrical integration module 130, thereby realizing the electrical connection between the battery module 120 inside the battery pack 100, the electrical integration module 130, and the connector outside the battery pack 100.

[0055] The battery pack 100 provided by this utility model has a simple structure. By setting a first high-voltage connecting post 150 and a second high-voltage post, the cover 140 and the connector on the outside of the battery pack 100 can be connected by plugging in. Furthermore, by plugging in the first high-voltage connecting post 150 with the positive output terminal 121 of the battery module 120 and the second high-voltage connecting post 160 with the electrical integration module 130, the height of the cover 140 can be minimized, reducing the overall height of the battery pack 100. It also reduces the installation of bolts and conductive wires, saving costs and improving the integration and safety of the battery pack 100.

[0056] In some embodiments, as Figure 5 As shown, the first high-voltage connection post 150 includes a first post body 151, the axis of the first post body 151 is perpendicular to the first direction, and a first connection portion 152 extending along the first direction is provided at one end of the first post body 151 near the electrical integrated module 130; the positive output terminal 121 is provided with a first socket, and in the first state, the first connection portion 152 and the first socket are inserted and engaged along the first direction.

[0057] The second high-voltage connection post 160 includes a second post body 161, the axis of which is perpendicular to the first direction. The second post body 161 is provided with a second connection portion 162 extending along the first direction at one end near the electrical integrated module 130. The second output end 132 includes a first mounting hole. In the first state, the second connection portion 162 is inserted into the first mounting hole along the first direction.

[0058] Specifically, the first column body 151 and the second column body 161 are conventional high-voltage connection column structures in the art. For example, the first column body 151 and the second column body 161 have the same structure, both including a conductive segment 1510, an axial limiting segment 1511, a circumferential limiting segment 1512, and a connecting segment 1513 connected in sequence. The conductive segment 1510 can be a cylindrical structure, passing through the side wall 141 of the cover 140 and extending a certain length beyond the cover 140, allowing it to be inserted and mated with the connector along the second direction to achieve electrical connection. The connector can also be injection molded with the cover 140 in one piece, reducing the use of seals, bolts, etc., and lowering corresponding risks. The axial limiting section 1511 is a frustum structure, and the circumferential limiting section 1512 is a cylindrical structure with a notch. The axial limiting section 1511 and the circumferential limiting section 1512 can cooperate with the side wall 141 of the cover 140 to restrict the first high-pressure connecting column 150 from moving axially and rotating circumferentially, and to restrict the second high-pressure connecting column 160 from moving axially and rotating circumferentially. In an example configuration, the side wall 141 of the cover 140 is provided with a first through hole 1411 that mates with the first high-pressure connecting post 150 and a second through hole 1412 that mates with the second high-pressure connecting post 160. Both the first through hole 1411 and the second through hole 1412 have notched cylindrical holes that mate with the circumferential limiting section 1512. The circumferential rotation of the first high-pressure connecting post 150 and the second high-pressure connecting post 160 is restricted by the engagement of the notched cylindrical structure and the notched cylindrical holes. The first through hole 1411 and the second through hole 1412 are also provided with multiple protrusions that mate with the axial limiting section 1511. These protrusions are circumferentially distributed, and their engagement with the frustum structure restricts the axial movement of the first high-pressure connecting post 150 and the second high-pressure connecting post 160, thereby ensuring a tight fit between the first high-pressure connecting post 150 and the second high-pressure connecting post 160 and the side wall 141 of the cover 140. It is understandable that a groove is provided between the axial limiting section 1511 and the circumferential limiting section 1512, and a sealing gasket is installed in the groove so that the first high-pressure connecting column 150 and the second high-pressure connecting column 160 are respectively sealed to the side wall 141 of the cover 140.

[0059] The lower end face of the connecting section 1513 of the first high-voltage connecting post 150 and the second high-voltage connecting post 160 is respectively provided with a first connecting portion 152 and a second connecting portion 162 extending along a first direction. The lower end face of the connecting section 1513 can be set as a horizontal plane to facilitate fixed connection with the first connecting portion 152 or the second connecting portion 162. The upper end face of the connecting section 1513 can be a horizontal plane, an arc-shaped plane, etc., and those skilled in the art can set it according to actual needs. The provision of the first connecting portion 152 and the second connecting portion 162 can extend the length of the first high-voltage connecting post 150 and the second high-voltage connecting post 160 along the first direction, facilitating the insertion and engagement of the first high-voltage connecting post 150 with the positive output terminal 121, and facilitating the insertion and engagement of the second high-voltage connecting post 160 with the second output terminal 132. The first connecting portion 152 and the second connecting portion 162 can be conductive connecting portions made of conductive material.

[0060] The positive output terminal 121 of the battery module 120 is formed by a first insertion hole extending along a first direction. In a first state, the first connecting part 152 can be inserted into the blind hole of the positive output terminal 121 to achieve electrical connection between the first high-voltage connecting post 150 and the positive output terminal 121. The electrical integrated module 130 has a relief groove on the side near the second high-voltage connecting post 160, and a first mounting hole is provided at the relief groove. The second connecting part 162 can be inserted into the first mounting hole to achieve electrical connection between the second high-voltage connecting post 160 and the second output terminal 132 of the electrical integrated module 130.

[0061] In some embodiments, as Figure 5 As shown, the length of the first connecting part 152 is greater than the length of the second connecting part 162, and in the first state, the upper end surface of the first column body 151 is flush with the upper end surface of the second column body 161.

[0062] Specifically, since the electrical integrated module 130 is located above the battery module 120, and the first high-voltage connecting post 150 and the second high-voltage connecting post 160 are at the same horizontal height on the side wall 141 of the cover 140, in order to ensure that in the first state, the first connecting part 152 is plugged into the positive output terminal 121 of the battery module 120, and the second connecting part 162 is plugged into the first mounting hole, and that the upper surfaces of the first high-voltage connecting post 150 and the second high-voltage connecting post 160 are still at the same horizontal height, the length of the first connecting part 152 along the first direction is greater than the length of the second connecting part 162 along the first direction, so as to compensate for the height difference between the electrical integrated module 130 and the battery module 120.

[0063] In some embodiments, as Figure 4As shown, the electrical integration module 130 is provided with a clearance opening 133, and the first connecting part 152 is disposed at the clearance opening 133 and is plugged into the first socket.

[0064] Specifically, the setting of the avoidance port 133 can prevent the first high-voltage connection post 150 and the second high-voltage connection post 160 from being electrically connected to the electrical integrated module 130, thus avoiding a short circuit and improving the safety of the battery pack 100.

[0065] In some embodiments, the first high-voltage connector 150 is a positive high-voltage connector, and the second high-voltage connector 160 is a negative high-voltage connector.

[0066] Specifically, the positive output terminal 121 of the battery module 120 is electrically connected to the positive high-voltage connection post, and the negative output terminal 122 of the battery module 120 is electrically connected to the negative high-voltage connection post through the electrical integration module 130. The positive high-voltage connection post, the negative high-voltage connection post, and the low-voltage connection post 170 are all connected to the connector to form a complete charging circuit.

[0067] In some embodiments, as Figure 4 As shown, the electrical integration module 130 has a third state close to the battery module 120 and a fourth state away from the battery module 120. In the third state, the first output terminal 131 and the negative output terminal 122 are plugged into each other along the first direction.

[0068] Specifically, the first output terminal 131 of the electrical integration module 130 is plugged into the negative output terminal 122 of the battery module 120 to realize the electrical connection between the first output terminal 131 and the negative output terminal 122. This can further reduce the installation of bolts and conductive wires, simplify the assembly process of the battery pack 100, improve the assembly efficiency of the battery pack 100, save the space occupied by bolts and conductive wires, reduce the safety hazards of conductive wire connections, and improve the safety of the battery pack 100.

[0069] In some embodiments, as Figures 6 to 8 As shown, the first output terminal 131 includes a connecting plate 1311, which is fixedly connected to the electrical integration module 130. The connecting plate 1311 extends along a second direction toward a side away from the electrical integration module 130, and the second direction is perpendicular to the first direction. The connecting plate 1311 is provided with a plug-in portion 1312 extending along the first direction.

[0070] The negative output terminal 122 is provided with a second socket, and the plug-in part 1312 is plugged into the second socket along the first direction.

[0071] Specifically, the negative output terminal 122 of the battery module 120 is formed by a second socket extending along a first direction, and the axial directions of the positive output terminal 121 and the negative output terminal 122 are parallel. The electrical integrated module 130 is provided with a bent and conductive connecting plate 1311 and a plug-in portion 1312, wherein the connecting plate 1311 extends along a second direction, and the plug-in portion 1312 extends along a first direction. The plug-in portion 1312 can be inserted into the second socket along the first direction, so that the electrical integrated module 130 is electrically connected to the negative output terminal 122 through the cooperation of the connecting plate 1311 and the plug-in portion 1312.

[0072] In some embodiments, as Figure 3 and Figure 7 As shown, the electrical integration module 130 and the battery module 120 are respectively provided with a signal acquisition plug 123 and a signal acquisition slot 134 on their adjacent sides. In the third state, the signal acquisition plug 123 and the signal acquisition slot 134 are plugged into each other along the first direction.

[0073] Specifically, the signal acquisition plug 123 is positioned above the battery module 120, between the positive output terminal 121 and the negative output terminal 122. The signal acquisition plug 123 contains multiple sockets. The signal acquisition slot 134 is located on the electrical integration module 130. The signal acquisition slot 134 contains multiple insertion rods, each corresponding to a socket. When the signal acquisition plug 123 is inserted into the signal acquisition slot 134, the insertion rods also insert into their respective sockets, establishing an electrical connection between the plug 123 and the slot 134. The signal acquisition plug 123 can acquire the voltage signals of each individual cell within the battery module 120 and transmit these signals to the electrical integration module 130 (e.g., a BMS device) via the signal acquisition slot 134. The BMS device can then calculate information such as the cell's temperature, voltage, and current based on the acquired voltage signals for thermal management of the battery pack 100.

[0074] In some embodiments, as Figure 9 and Figure 10 As shown, the cover 140 includes a side wall 141, and a top wall 142 is provided at the upper end of the side wall 141. A plurality of support columns 1421 are provided on the top wall 142. The electrical integration module 130 is provided with a plurality of second mounting holes 135 corresponding to the positions of the support columns 1421. The support columns 1421 and the second mounting holes 135 are inserted and engaged along the first direction.

[0075] Specifically, the sidewalls 141 form a cavity structure. The first high-voltage connecting post 150, the second high-voltage connecting post 160, and the low-voltage connecting post 170 all extend into the cavity structure through the sidewalls 141. A top wall 142 is provided at the upper end of the sidewalls 141. Multiple support posts 1421 are provided on the top wall 142 at positions corresponding to the electrical integrated module 130. The support posts 1421 can be cylindrical. The electrical integrated module 130 is provided with second mounting holes 135 corresponding to the support posts 1421. The support posts 1421 can be inserted into the mounting holes to achieve the insertion and engagement of the top wall 142 of the cover 140 and the electrical integrated module 130. Alternatively, the support posts 1421 can be studs, and the corresponding mounting holes can be threaded holes, so that the top wall 142 of the cover 140 and the electrical integrated module 130 are screwed together, thus securing the cover 140 and the electrical integrated module 130 together.

[0076] The following is a specific example illustrating the assembly method of the battery pack 100 provided in this application embodiment, including:

[0077] The first high-voltage connecting post 150 and the second high-voltage connecting post 160 pass through the side wall 141 of the cover 140 and are fixedly connected to the cover 140; and a low-voltage connecting post 170 is fixed on the side wall 141 of the cover 140. The parts of the first high-voltage connecting post 150, the second high-voltage connecting post 160 and the low-voltage connecting post 170 that extend out of the cover 140 are engaged with the connector to achieve electrical connection.

[0078] The first output terminal 131 of the electrical integrated module 130 is inserted into the negative output terminal 122 of the battery module 120 along the first direction to achieve electrical connection; and the signal acquisition plug 123 on the electrical integrated module 130 can be inserted into the signal acquisition slot 134 of the battery module 120 along the first direction to achieve electrical connection.

[0079] The cover 140 moves toward the side closer to the electrical integrated module 130, and the first high-voltage connecting post 150 is inserted into the positive output terminal 121 of the battery module 120 along the first direction to achieve electrical connection, and the second high-voltage connecting post 160 is inserted into the first mounting hole of the electrical integrated module 130 along the first direction to achieve electrical connection. At the same time, the multiple support posts 1421 on the cover 140 can be inserted into the corresponding multiple second mounting holes 135 on the electrical integrated module 130, thereby completing the assembly of the battery pack 100.

[0080] A second aspect of this application provides an electrical device, the electrical device including the battery pack 100 described in any embodiment of this application.

[0081] The electrical equipment provided in this application embodiment has the same specific technical features and effects as the corresponding technical features and effects of the battery pack 100, and will not be described again in this application embodiment. The battery pack 100 is used to supply power to the electrical equipment. The battery pack 100 provided in this application embodiment is small in size, which meets the needs of the electrical equipment for a small-sized power battery pack 100.

[0082] It should be noted that electrical equipment can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can include gasoline-powered cars, natural gas-powered cars, new energy vehicles, or electric motorcycles, etc. Electric motorcycles have very strict requirements on the size of the battery pack 100. The battery pack 100 is generally located under the seat of the electric motorcycle, and the vertical space of the battery pack 100 is limited by the ground clearance and the overall height of the vehicle. The size of the battery pack 100 provided in this application embodiment can meet the needs of electric motorcycles for a small-sized power battery pack 100. New energy vehicles can include pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present invention do not impose any special limitations on the above-mentioned electrical equipment.

[0083] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A battery pack (100), characterized in that, include: The housing (110) contains a battery module (120) which has a positive output terminal (121) and a negative output terminal (122). An electrical integration module (130) is disposed above the battery module (120). The electrical integration module (130) has a first output terminal (131) and a second output terminal (132) on opposite sides. The first output terminal (131) is electrically connected to the negative output terminal (122). A cover (140) is disposed above the housing (110). The electrical integrated module (130) is located between the housing (110) and the cover (140). A first high-voltage connecting post (150) and a second high-voltage connecting post (160) are disposed inside the cover (140). The first high-voltage connecting post (150) and the second high-voltage connecting post (160) have a first state close to the housing (110) and a second state far away from the housing (110). In the first state, the first high-voltage connecting post (150) is inserted into the positive output terminal (121) along the first direction, and the second high-voltage connecting post (160) is inserted into the second output terminal (132) along the first direction.

2. The battery pack (100) according to claim 1, characterized in that, The first high-voltage connection post (150) includes a first post body (151), the axis of the first post body (151) is perpendicular to the first direction, and a first connection part (152) extending along the first direction is provided at one end of the first post body (151) near the electrical integrated module (130); the positive output terminal (121) is provided with a first socket, and in the first state, the first connection part (152) and the first socket are inserted and engaged along the first direction; The second high-voltage connection column (160) includes a second column body (161), the axis of which is perpendicular to the first direction. The second column body (161) is provided with a second connection portion (162) extending along the first direction at one end near the electrical integrated module (130). The second output terminal (132) includes a first mounting hole. In the first state, the second connection portion (162) is inserted into the first mounting hole along the first direction.

3. The battery pack (100) according to claim 2, characterized in that, The length of the first connecting part (152) is greater than the length of the second connecting part (162), and in the first state, the upper end face of the first column body (151) is flush with the upper end face of the second column body (161).

4. The battery pack (100) according to claim 2, characterized in that, The electrical integration module (130) is provided with a clearance opening (133), and the first connecting part (152) is provided at the clearance opening (133) and is plugged into the first socket.

5. The battery pack (100) according to claim 1, characterized in that, The first high-voltage connector (150) is a positive high-voltage connector, and the second high-voltage connector (160) is a negative high-voltage connector.

6. The battery pack (100) according to claim 1, characterized in that, The electrical integration module (130) has a third state close to the battery module (120) and a fourth state far away from the battery module (120). In the third state, the first output terminal (131) and the negative output terminal (122) are plugged into each other along a first direction.

7. The battery pack (100) according to claim 6, characterized in that, The first output terminal (131) includes a connecting plate (1311), which is fixedly connected to the electrical integrated module (130). The connecting plate (1311) extends along a second direction away from the electrical integrated module (130), and the second direction is perpendicular to the first direction. The connecting plate (1311) is provided with a plug-in portion (1312) extending along the first direction. The negative output terminal (122) is provided with a second socket, and the plug-in part (1312) is plugged into the second socket along the first direction.

8. The battery pack (100) according to claim 6, characterized in that, The electrical integration module (130) and the battery module (120) are respectively provided with a signal acquisition plug (123) and a signal acquisition slot (134) on the adjacent side. In the third state, the signal acquisition plug (123) and the signal acquisition slot (134) are plugged in and engaged along the first direction.

9. The battery pack (100) according to claim 1, characterized in that, The cover (140) includes a side wall (141), and a top wall (142) is provided at the upper end of the side wall (141). A plurality of support columns (1421) are provided on the top wall (142). A plurality of second mounting holes (135) corresponding to the positions of the support columns (1421) are provided on the electrical integration module (130). The support columns (1421) and the second mounting holes (135) are inserted and engaged in the first direction.

10. An electrical appliance, characterized in that, The electrical equipment includes the battery pack (100) as described in any one of claims 1-9.

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