Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment, and relates to the technical field of batteries. The battery pack comprises a lower box body; the battery pack is located in the lower box body and comprises a plurality of battery cells, and each battery cell comprises a top cover arranged upwards; the reinforcing cover plate is located on the lower box body, a supporting piece is arranged on the side, close to the top cover, of the reinforcing cover plate, the supporting piece extends towards the direction close to the battery pack in the height direction of the lower box body, and the supporting piece abuts against the top cover. According to the battery pack provided by the utility model, the reinforcing cover plate is additionally arranged above the battery cells, so that the strength of the top structure of the battery pack is enhanced, the probability of short circuit danger caused by the fact that the structure of the battery pack is damaged by treading due to treading is reduced, and a battery product can effectively and normally work for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery pack and electrical equipment. Background Art

[0002] In related technologies, most new energy vehicles install battery cells on the vehicle chassis. Although the chassis has sufficient strength, the strength above the battery (i.e. the side with the top cover) is lacking, posing a safety risk. It is very likely that the wiring harness isolation assembly installed on the top of the battery product will be trampled and damaged due to load-bearing problems, affecting the normal use of the battery product. Utility Model Content

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and to provide a battery pack and electrical equipment that can effectively protect the power battery, reduce the probability of battery structure damage and failure due to trampling and causing safety accidents, and ensure that battery products can work normally and effectively for a long time.

[0004] The utility model provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a battery pack, the battery pack comprising:

[0006] lower box;

[0007] A battery pack is located in the lower box, and the battery pack includes a plurality of battery cells, and the battery cells include a top cover arranged upward;

[0008] A reinforcing cover is located on the lower box body, and a support is provided on one side of the reinforcing cover plate close to the top cover. The support extends along the height direction of the lower box body toward the direction close to the battery pack, and the support abuts against the top cover.

[0009] In one of the embodiments of the first aspect, the top cover includes an explosion-proof valve, the support member includes a first support member, the first support member and the reinforced cover plate form an escape space, and the explosion-proof valve is located in the escape space.

[0010] In one embodiment of the first aspect, the battery pack has a first direction, and the battery cells are arranged along the first direction;

[0011] The battery pack further includes a wire harness isolation assembly, which is located on the top cover, and the wire harness isolation assembly is spaced apart from the first support member along a first direction and is located on a side away from the explosion-proof valve;

[0012] The wiring harness isolation assembly includes a wiring harness isolation plate, and the support member also includes a second support member. A through hole is penetrated through the wiring harness isolation plate along its height direction, and the second support member is penetrated through the through hole and abuts against the top cover.

[0013] In one of the embodiments of the first aspect, the support member also includes a third support member, which is spaced apart from the second support member along the first direction and is located on a side away from the explosion-proof valve; a notch is provided at the edge of the wiring harness isolation plate, and the third support member is passed through the notch and abuts against the top cover.

[0014] In one embodiment of the first aspect, the battery pack has a second direction intersecting with the first direction, the plurality of battery cells are arranged along the second direction, the first support member extends along the second direction, and the second support member and the third support member are multiple in number and are arranged at intervals along the second direction.

[0015] In one of the embodiments of the first aspect, two through holes are provided on the wire harness isolation plate at intervals along the first direction, and the number of the second support members matches the number of the through holes.

[0016] In one of the embodiments of the first aspect, a reinforcing rib is provided on a side of the reinforced cover plate away from the top cover.

[0017] In one of the embodiments of the first aspect, a plurality of first recessed areas are distributed on a side of the reinforcement cover plate away from the wire harness isolation plate, and the reinforcement ribs are located in the first recessed areas.

[0018] In one of the embodiments of the first aspect, the battery pack further includes an output terminal electrically connected to the top cover, and the reinforcing cover plate has an extension portion, and the extension portion is used to cover the output terminal.

[0019] In a second aspect, an embodiment of the present application further provides an electrical device, wherein the electrical device comprises a battery pack according to any one of the above embodiments.

[0020] The embodiments of the present utility model have the following advantages:

[0021] The battery pack provided by the utility model enhances the structural strength of the top of the battery pack by adding a reinforcing cover plate above the top cover of the battery cell, thereby reducing the probability of the battery pack causing a short circuit hazard due to structural damage caused by stepping on it, and can ensure that the battery product can work normally and effectively for a long time, avoid the occurrence of safety accidents, and ensure the safety of the battery product, vehicles and personnel.

[0022] In addition, the utility model also relates to an electrical device. Since the above-mentioned battery pack has the above-mentioned technical effects, the electrical device including the battery pack should have the same technical effects, which will not be repeated here.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a battery pack provided by an embodiment of the utility model is shown;

[0026] Figure 2 An exploded view of a battery pack provided by an embodiment of the utility model is shown;

[0027] Figure 3 A schematic diagram of the internal structure of a battery pack provided by an embodiment of the utility model is shown;

[0028] Figure 4 A three-dimensional schematic diagram of a reinforcing cover plate of a battery pack provided by an embodiment of the utility model is shown;

[0029] Figure 5 A structural schematic diagram of a reinforced cover plate of a battery pack provided by an embodiment of the utility model from one perspective is shown;

[0030] Figure 6 Shows Figure 5 Middle AA section view;

[0031] Figure 7 A structural schematic diagram showing another perspective of a reinforcing cover plate of a battery pack provided by an embodiment of the utility model;

[0032] Figure 8 A schematic structural diagram of a wiring harness isolation assembly of a battery pack provided in an embodiment of the utility model is shown.

[0033] Description of main component symbols:

[0034] 10-battery pack; 100-lower box; 110-output terminal; 120-battery group; 121-battery cell; 1211-top cover; 122-explosion-proof valve; 200-reinforced cover plate; 210-extension portion; 220-reinforcement rib; 230-avoidance space; 240-second shielding portion; 250-support member; 251-second support member; 252-third support member; 253-first support member; 260-first shielding portion; 270-first recessed area; 280-hollow portion; 300-wiring harness isolation assembly; 310-wiring harness isolation plate; 311-through hole; 312-notch; 313-clearance groove; 320-connecting piece; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] Among the related technologies, CTP (Cell to Pack) and CTC (Cell to Chassis) technologies are two important milestones in the development of new energy vehicle battery integration in recent years, aiming to improve the integration of battery systems, reduce costs, increase energy density and improve efficiency. Since technologies such as CTP and CTC can effectively improve battery integration, many new energy companies are gradually shifting their focus to these technologies. CTP technology mainly simplifies the structure by directly integrating it into the battery pack by eliminating the step of removing the battery cell module. CTC technology goes a step further and integrates the battery cell directly into the vehicle chassis, integrating it with the vehicle structure.

[0041] Therefore, most new energy vehicles install battery cells on the car chassis. Although the chassis has sufficient strength, the strength above the battery is lacking, posing a safety risk. It is very likely that the wiring harness isolation components installed on the top of the battery product will be trampled and damaged due to load-bearing problems, affecting the normal use of the battery product.

[0042] like Figure 1 and Figure 2 As shown, in order to solve the above technical problems, an embodiment of the utility model provides a battery pack 10, which includes a lower box body 100, a battery group 120 and a reinforcing cover plate 200, wherein the battery group 120 is located in the lower box body 100, and the battery group 120 includes a plurality of battery cells 121, and the battery cell 121 includes an upwardly arranged top cover 1211; the reinforcing cover plate 200 is located on the lower box body 100, and a support member 250 is provided on a side of the reinforcing cover plate 200 close to the top cover 1211, and the support member 250 extends along the height direction of the lower box body 100 toward the direction close to the battery group 120, and the support member 250 abuts against the top cover 1211.

[0043] In this embodiment, the design of the battery pack 10 focuses on improving the safety and structural strength of the battery pack 120 by adding a reinforcing cover 200 above the top cover 1211 on the top of the battery cell 121, especially to protect against external pressure, so as to prevent damage from accidental stepping or external force. The reinforcing cover 200 in this application is located at the part of the battery pack 10 that needs to be protected, such as Figure 1As shown, it can be located at both ends of the battery pack 10, and the middle part of the battery pack 10 uses a common box cover. The top of the entire lower box 100 can also be covered with a reinforcing cover 200 according to needs. Among them, the battery pack 10 integrates the battery pack 120, wiring harness management, and protection measures to ensure the overall design of the system; the battery cells 121 of the battery pack 120 are arranged so that multiple battery cells 121 are integrated, high-density, and energy efficiency is improved.

[0044] Exemplarily, the support member 250 and the top cover 1211 are in abutment with each other; or, the support member 250 and the top cover 1211 are fixedly connected, etc., which is not specifically limited here, as long as it can ensure that the pressure on the reinforced cover plate 200 is transferred to the top cover 1211.

[0045] Of course, optionally, the support member 250 can form multiple points of contact with the top cover 1211, thereby dispersing the pressure throughout the top cover 1211 to avoid excessive pressure at a single contact point.

[0046] By applying the battery pack 10 provided by the utility model, a reinforcing cover plate 200 is added above the top cover 1211 of the battery cell 121, so that the strength of the structure above the top cover 1211 is enhanced, and the probability of the battery pack 10 causing a short circuit due to structural damage caused by being stepped on is reduced. It can also ensure that the battery product can work normally and effectively for a long time, avoid the occurrence of safety accidents, and ensure the safety of battery products, vehicles and personnel.

[0047] In some embodiments, the top cover 1211 includes an explosion-proof valve 122 , the support member 250 includes a first support member 253 , the first support member 253 and the reinforced cover plate 200 form an escape space 230 , and the explosion-proof valve 122 is located in the escape space 230 .

[0048] like Figure 6 As shown, in this embodiment, the avoidance space 230 avoids the explosion-proof valve 122, so that the gas generated inside the battery cell 121 can be discharged in time under specific conditions (such as overheating runaway, charging process), reducing the internal pressure and preventing pressure accumulation.

[0049] The avoidance space 230 is connected to the outside, ensuring that the exhaust path is unobstructed, and the gas can be discharged directly from the first support member 253 through the top cover 1211 without obstruction and released quickly to avoid local accumulation and pressure.

[0050] Obviously, the explosion-proof valve 122 is located in the avoidance space 230 of the top cover 1211. The explosion-proof valve 122 is closed under normal circumstances. Once the internal pressure exceeds the preset threshold, it automatically opens and quickly releases pressure to protect the battery pack 10 within a safe range, prevent explosions, and reduce disasters. This design embodies the advanced protection of the battery pack 10 in gas management and safety. Through the combination of the avoidance space 230 and the explosion-proof valve 122, it ensures that the battery can effectively cope with internal pressure in abnormal situations, reduce risks, and protect the safety of equipment and personnel.

[0051] Exemplarily, the volume of the avoidance space 230 is configured to allow the explosion-proof valve 122 to be opened, so as to avoid blocking the normal operation of the explosion-proof valve 122 .

[0052] Optionally, the avoidance space 230 may be configured as a structure that is connected along the arrangement direction of the explosion-proof valves 122, or may be configured as a structure that is independently arranged along the arrangement direction of the explosion-proof valves 122. Thus, the avoidance space 230 covers all the explosion-proof valves 122. For example, all the explosion-proof valves 122 are arranged in sequence along the second direction Y of the battery pack 10, and the avoidance space 230 is extended along the second direction Y.

[0053] like Figure 3 and Figure 8 As shown, in some embodiments, the battery pack 10 has a first direction X, and the battery cells 121 are arranged along the first direction X; the battery pack 10 also includes a wiring harness isolation assembly 300, which is located on the top cover 1211, and the wiring harness isolation assembly 300 and the first support member 253 are spaced apart along the first direction X, and are located on the side away from the explosion-proof valve 122; the wiring harness isolation assembly 300 includes a wiring harness isolation plate 310, and the support member 250 also includes a second support member 251, and a through hole 311 is penetrated on the wiring harness isolation plate 310 along its height direction, and the second support member 251 is penetrated through the through hole 311 and abuts against the top cover 1211.

[0054] The wiring harness isolation assembly 300 includes a wiring harness isolation plate 310, a flexible circuit board and a connecting piece 320. Correspondingly, the wiring harness isolation plate 310 is provided with a circuit board placement location and a connecting piece 320 placement location. The wiring harness isolation plate 310 is usually made of insulating material. The wiring harness isolation plate 310 is placed above the battery pack 120 to protect the wiring harness from physical damage and short circuit. The flexible circuit board replaces the traditional hard board to adapt to the shape of the battery pack 10, improve space utilization, facilitate installation, reduce weight, and improve vibration resistance and thermal performance. The connecting piece 320 is located at the circuit board placement location of the wiring harness isolation plate 310, and after the wiring harness isolation plate 310 is installed, the connecting piece 320 is welded to the pole of the battery cell 121, and the wiring harness isolation plate 310 is pressed down and fixed on the top cover 1211 by the connecting piece 320, which is responsible for the electrical connection between the battery cell 121 and the wiring harness or circuit board, ensuring current transmission, facilitating maintenance, and reducing resistance. Furthermore, by presetting the placement of the circuit board and the connection piece 320, the layout can be optimized to ensure that the wiring harness is laid out reasonably, which is convenient for maintenance, reduces interference, and improves efficiency.

[0055] By connecting the wiring harness isolation plate 310 and the reinforcing cover plate 200, not only the structural safety of the battery pack 120 is enhanced, but also the trampling resistance and pressure resistance of the entire battery pack 10 are improved, making it suitable for various complex usage environments, such as electric vehicles and outdoor equipment, ensuring the long-term stable operation of the battery system.

[0056] In this embodiment, multiple second support members 251 are provided to cooperate with the first support member 253, which means that in addition to the original first support member 253, more reinforcement structures are designed and multiple support points are distributed to improve the overall stability and reduce deformation.

[0057] The through hole 311 of the harness isolation plate 310 is for the second support member 251 to pass through and contact the top cover 1211. Specifically, a plurality of through holes 311 are provided in the middle of the harness isolation plate 310, so that the second support member 251 can be inserted into the through hole 311 of the harness isolation plate 310 with precise alignment, thereby optimizing the structure and not affecting the layout of the harness.

[0058] The second support member 251 passes through the corresponding through hole 311 of the harness isolation plate 310. This design ensures that the second support member 251 is firmly embedded in the harness isolation plate 310, strengthens the connection between the reinforcing cover plate 200 and the harness isolation plate 310, forms a whole, and improves the stability of resisting external forces. In other words, the second support member 251 abuts against the top cover 1211. In this way, the second support member 251 is also in close contact with the top cover 1211, further increasing the support of the top, forming a comprehensive protective shell, and preventing pressure from being directly transmitted to the harness and the battery cell 121.

[0059] Illustratively, the reinforcing cover plate 200, the wiring harness isolation plate 310 and the top cover 1211 are arranged in parallel, which can reduce the height of the battery pack 10 and reduce the space it occupies.

[0060] The reinforcing cover plate 200 can also be fixedly connected to the wiring harness isolation plate 310 by means of snaps or gluing, but is not limited to these methods, and other structures that can achieve the same connection function are also acceptable.

[0061] For example, the second support member 251 is configured to be semi-cylindrical; of course, in other embodiments, the second support member 251 may also be configured to be cylindrical, prismatic, etc., which are not specifically limited here. Optionally, the second support member 251 and the top cover 1211 are in surface contact to further increase the contact area. At the same time, the second support member 251 matches the shape of the through hole 311, and the second support member 251 can be firmly fixed on the wiring harness isolation plate 310.

[0062] The reinforcing cover plate 200 is located on the side of the harness isolation plate 310 away from the top cover 1211, and the reinforcing cover plate 200 protects the harness plate and the battery cell 121 by resisting external forces. Among them, the support member 250 extends toward the harness isolation plate 310 to support and form a protective frame, strengthen the structure, prevent deformation, and reduce the influence of the harness force.

[0063] The support member 250 is connected to the top cover 1211, and the support member 250 passes through the wiring harness isolation plate 310. The overall structure is firm, ensuring uniform force distribution, avoiding excessive local pressure, and protecting the battery cell 121 to prevent the connection structure at the upper end of the battery cell 121 from being stepped on and damaged.

[0064] like Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, the support member 250 also includes a third support member 252, which is spaced apart from the second support member 251 along the first direction X and is located on the side away from the explosion-proof valve 122; a notch 312 is provided at the edge of the wiring harness isolation plate 310, and the third support member 252 is passed through the notch 312 and abuts against the top cover 1211.

[0065] In this embodiment, the plurality of third support members 252 further strengthen the support structure, which means that the design has more dense support points, further improving the overall stability and pressure resistance.

[0066] The notch 312 of the wiring harness isolation plate 310 is different from the previous through hole 311. This time, multiple notches 312 are designed to be away from the first support member 253, and the third support member 252 and the second support member 251 are spaced apart along the first direction X. This design more reasonably distributes pressure, reduces stress concentration points, and optimizes the strength of the wiring harness isolation plate 310.

[0067] Among them, the third support member 252 is aligned with the notch 312, and the third support member 252 is inserted into the notch 312, which ensures the stable connection of the wire harness isolation plate 310, not only strengthens the stability of the wire harness isolation plate 310, but also prevents deformation, and improves the structural durability of the battery pack 10. Similarly, the third support member 252 is in contact with the top cover 1211, which can effectively resist external pressure and protect the battery pack 10 from damage.

[0068] Exemplarily, the third support member 252 is configured as a support plate, and the support plate and the reinforcing cover plate 200 are vertically arranged. The side of the support plate is connected to the reinforcing cover plate 200 through a side plate to increase the strength of the support plate.

[0069] It should be noted that, through the cooperation among the first support member 253 , the second support member 251 and the third support member 252 , various locations of the reinforced cover plate 200 can be supported, thereby ensuring the anti-trampling capability of the reinforced cover plate 200 .

[0070] like Figure 3 As shown, in some embodiments, the battery pack 10 has a second direction Y intersecting with the first direction X, a plurality of battery cells 121 are arranged along the second direction Y, the first support member 253 extends along the second direction Y, and the number of the second support members 251 and the third support members 252 are multiple and are arranged at intervals along the second direction Y respectively.

[0071] The first direction X is the width direction of the battery pack 10, and the second direction Y is the length direction of the battery pack 10. There are multiple second support members 251 and multiple third support members 252, and multiple second support members 251 are arranged at intervals along the second direction Y, and multiple third support members 252 are arranged at intervals along the second direction Y. The strength of the entire reinforced cover plate 200 can be increased.

[0072] The first support member 253 extends along the second direction Y, that is, extends along the length direction of the battery pack 10, which not only increases the contact area between the reinforced cover 200 and the top cover 1211, but also ensures the overall rigidity of the reinforced cover 200, can effectively transmit pressure, and prevent local pressure concentration.

[0073] Furthermore, the close fit between the first support member 253 and the top cover 1211 forms a complete protective shell, which prevents external pressure from directly acting on the wiring harness, effectively protects the battery cell 121, and reduces the risk of damage. Obviously, this design strengthens the physical strength of the battery pack 10, especially the wiring harness part, through precise layout and support structure, reduces the risk of damage caused by external forces, and improves the stability and durability of the battery pack 10.

[0074] Of course, in other embodiments, the first direction X and the second direction Y may also be set to be non-perpendicular to each other. For example, the angle between the first direction X and the second direction Y may be 30°, 40°, 50°, 60°, 70°, 80°, etc., which is not specifically limited here.

[0075] In addition, the plurality of notches 312 are sequentially arranged along the second direction Y, and the second support members 251 and the third support members 252 are sequentially arranged at intervals along the second direction Y, so as to further increase the density and enhance the strength of the support structure.

[0076] like Figure 2 and Figure 3 As shown, in some embodiments, there are two wire harness isolation assemblies 300, and the two wire harness isolation assemblies 300 are arranged opposite to each other along the first direction X; the first support member 253 is located between two adjacent wire harness isolation assemblies 300 along the first direction X. There are two wire harness isolation plates 310, and the two wire harness isolation plates 310 are arranged at intervals along the first direction X, which means that in the width direction of the battery pack 10, the two wire harness isolation plates 310 are arranged in parallel, each covering the top surface of the battery cell 121, protecting the battery cell 121 and the wiring harness, and reducing external interference.

[0077] In particular, the first support member 253 is located between the two wiring harness isolation plates 310 in the first direction X, which is equivalent to the width direction of the battery pack 10, strengthening the middle part of the battery pack 10 and reducing the risk of deformation due to force. In other words, a clearance groove 313 is defined between the two wiring harness isolation plates 310, and the first support member 253 is located in the clearance groove 313.

[0078] It should be noted that the spacing between the pair of harness isolating plates 310 in the first direction X is limited so as to allow the first support member 253 to pass through. In other words, the large harness isolating plate 310 is configured as a plurality of small harness isolating plates 310; obviously, this structural configuration can reduce the use area of ​​the harness isolating plate 310 and reduce the cost; and can save the subsequent process of drilling holes in the harness isolating plate 310 and inserting the first support member 253.

[0079] In some embodiments, the harness isolation plate 310 is provided with two through holes 311 spaced apart along the first direction X, and the number of the second support members 251 matches the number of the through holes 311. That is, the reinforced cover plate 200 is provided with second support members 251 on both sides, and two second support members 251 on one side.

[0080] like Figure 4 and Figure 5 As shown, in some embodiments, a reinforcing rib 220 is provided on a side of the reinforcing cover plate 200 away from the top cover 1211 .

[0081] Obviously, the reinforcement ribs 220 can increase the structural strength of the reinforcement cover plate 200, making its performance more superior. The reinforcement cover plate 200 and the reinforcement ribs 220 can be used to reduce the thickness of the reinforcement cover plate 200 while ensuring the structural strength of the reinforcement cover plate 200, thereby reducing the weight of the reinforcement cover plate 200.

[0082] Exemplarily, the reinforcing ribs 220 include a plurality of transverse ribs and a plurality of longitudinal ribs, wherein the plurality of transverse ribs are extended along a first direction X, and the plurality of longitudinal ribs are extended along a second direction Y, so that the transverse ribs and the longitudinal ribs can intersect, further enhancing the structural strength against trampling.

[0083] like Figure 5 and Figure 6 In some embodiments shown in FIG. 1 , the reinforced cover plate 200 has a first shielding portion 260, and the first support member 253 and the first shielding portion 260 form an escape space 230. In order to reduce weight, a plurality of hollow portions 280 may be provided on the first shielding portion 260. Figure 5 From left to right, a plurality of hollow portions 280 are provided. The hollow portions 280 may be provided on both sides of the first shielding portion 260.

[0084] In this embodiment, the first shielding portion 260 protects the internal structure and prevents external foreign matter from entering.

[0085] The first shielding portion 260 is provided with a hollow portion 280 , which can also facilitate the discharge of gas when the explosion-proof valve 122 is opened.

[0086] It should be noted that the first support member 253 has a second shielding portion 240 , and the explosion-proof valve 122 is located in a region between a pair of second shielding portions 240 .

[0087] Exemplarily, the first shielding portion 260 and the second shielding portion 240 are both plate-shaped structures, thereby reducing the overall thickness of the reinforced cover plate 200 .

[0088] like Figure 5 and Figure 6 As shown, in some embodiments, a plurality of first recessed areas 270 are distributed on a side of the reinforcement cover plate 200 away from the wire harness isolation plate 310 , and the reinforcement ribs 220 are located in the first recessed areas 270 .

[0089] In this embodiment, the thickness of the reinforced cover plate 200 can be further reduced by providing the first recessed area 270 in conjunction with the reinforcing rib 220. Of course, in other embodiments, multiple second recessed areas can also be distributed on the end surface of the reinforced cover plate 200 close to the harness isolation plate 310. Obviously, by providing the second recessed area in conjunction with the first recessed area 270, the weight of the reinforced cover plate 200 can be further reduced, and the effect of adding the reinforced cover plate 200 on the weight of the battery pack 10 can be reduced.

[0090] Optionally, a reinforcing rib 220 may also be provided in the second recessed area to ensure the overall structural strength of the reinforcing cover plate 200 .

[0091] like Figure 5 and Figure 7 As shown, in some embodiments, the battery pack 10 further includes an output terminal 110 electrically connected to the top cover 1211 , and the reinforcing cover plate 200 has an extension portion 210 , which is used to cover the output terminal 110 .

[0092] In this embodiment, the output terminal 110 is connected to the top cover 1211 of the battery cell 121, which is the power output interface of the battery pack 10 and is directly connected to the external circuit, ensuring the effective output of power from the battery pack 10 to meet the use requirements. It should be noted that the output terminal 110 can be used to electrically connect multiple groups of battery cells 121, that is, multiple groups of battery cells 121 can be connected through the output terminal 110.

[0093] The extension portion 210 of the reinforcing cover plate 200 is used to cover the output end 110. That is, the output end 110 is hidden between the top cover 1211 and the reinforcing cover plate 200. This structure optimizes the protection measures, ensures that the output end 110 is not directly exposed to the outside, reduces external force pressure and collision, and improves durability.

[0094] In addition, covering the output terminal 110 means that the extension portion 210 of the reinforcing cover 200 not only plays a supporting role, but also plays a protective role, shielding the output terminal 110 of the battery cell 121, reducing the impact of environmental factors, and protecting sensitive electrical connection parts.

[0095] Exemplarily, the output end 110 is an output pole piece, the extension portion 210 is configured as a plate-like structure, and the output end 110 is located within a projection area of ​​the extension portion 210 on the top cover 1211 .

[0096] In some embodiments, the embodiments of the present application further provide an electrical device, and the electrical device includes a battery pack 10 according to any one of the above embodiments.

[0097] Since the battery pack 10 has the above-mentioned technical effects, the electrical equipment including the battery pack 10 should have the same technical effects, which will not be described in detail here.

[0098] The technical solutions described in the embodiments of the present application are applicable to various battery-powered electrical equipment. The electrical equipment may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc.; the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.; the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc.; the electric tool may include a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.

[0099] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0100] The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A motor, a controller and a battery pack 10 can be arranged inside the vehicle, and the controller is used to control the battery pack 10 to power the motor. For example, a battery pack 10 can be arranged at the bottom, front or rear of the vehicle. The battery pack 10 can be used to power the vehicle; for example, the battery pack 10 can be used as an operating power source for the vehicle and used in the circuit system of the vehicle; for example, the battery pack 10 is used for the working power requirements during the startup, navigation and operation of the vehicle.

[0101] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0102] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0103] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: The battery pack (10) comprises: Lower box(100); A battery pack (120) is located in the lower box (100), and the battery pack (120) includes a plurality of battery cells (121), and the battery cells (121) include a top cover (1211) disposed upward; A reinforcing cover plate (200) is located on the lower box body (100), and a support member (250) is provided on a side of the reinforcing cover plate (200) close to the top cover (1211), the support member (250) extends along the height direction of the lower box body (100) in a direction close to the battery pack (120), and the support member (250) abuts against the top cover (1211).

2. The battery pack according to claim 1, characterized in that: The top cover (1211) includes an explosion-proof valve (122), the support member (250) includes a first support member (253), the first support member (253) and the reinforced cover plate (200) form an escape space (230), and the explosion-proof valve (122) is located in the escape space (230).

3. The battery pack according to claim 2, characterized in that: The battery pack (10) has a first direction (X), and the battery cells (121) are arranged along the first direction (X); The battery pack (10) further comprises a wire harness isolation assembly (300), which is located on the top cover (1211), and the wire harness isolation assembly (300) is spaced apart from the first support member (253) along a first direction (X) and is located on a side away from the explosion-proof valve (122); The wire harness isolation assembly (300) comprises a wire harness isolation plate (310), and the support member (250) further comprises a second support member (251). The wire harness isolation plate (310) is provided with a through hole (311) penetrating along its height direction, and the second support member (251) is penetrated through the through hole (311) and abuts against the top cover (1211).

4. The battery pack according to claim 3, characterized in that: The support member (250) further comprises a third support member (252), which is spaced apart from the second support member (251) along the first direction (X) and is located on a side away from the explosion-proof valve (122); a notch (312) is provided on the edge of the wiring harness isolation plate (310), and the third support member (252) is inserted through the notch (312) and abuts against the top cover (1211).

5. The battery pack according to claim 4, characterized in that: The battery pack (10) has a second direction (Y) intersecting with the first direction (X), the plurality of battery cells (121) are arranged along the second direction (Y), the first support member (253) extends along the second direction (Y), and the second support member (251) and the third support member (252) are multiple in number and are arranged at intervals along the second direction (Y).

6. The battery pack according to claim 3, characterized in that: Two through holes (311) are provided on the wiring harness isolation plate (310) at intervals along the first direction (X), and the number of the second support members (251) matches the number of the through holes (311).

7. The battery pack according to claim 3, characterized in that: A reinforcing rib (220) is provided on a side of the reinforcing cover plate (200) away from the top cover (1211).

8. The battery pack according to claim 7, characterized in that: A plurality of first recessed areas (270) are distributed on a side of the reinforcing cover plate (200) away from the wiring harness isolation plate (310), and the reinforcing ribs (220) are located in the first recessed areas (270).

9. The battery pack according to claim 1, characterized in that: The battery pack (10) further comprises an output terminal (110) electrically connected to the top cover (1211); the reinforcing cover plate (200) comprises an extension portion (210), and the extension portion (210) is used to cover the output terminal (110).

10. An electrical device, characterized in that: The electrical device comprises a battery pack (10) as claimed in any one of claims 1 to 9.

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