Battery box and electric equipment

Abstract

The utility model provides a battery box and electric equipment. The battery box comprises a box body, the box body comprises a box cover and a frame part, and a containing cavity is defined by the box cover and the frame part; the frame piece comprises a bottom protection plate and a frame piece, the box cover is arranged at the top end of the frame piece, the bottom protection plate is located at the bottom end of the frame piece, and a plurality of lightening holes are formed in the frame piece and communicate with the containing cavity; the battery module is positioned in the accommodating cavity; and the lifting lug assembly comprises a lifting lug piece, and the lifting lug piece is detachably installed on the frame piece. According to the utility model, the energy density in the battery box is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery box and electric equipment belong to new energy battery technical field. BACKGROUND

[0002] With the rapid growth of the electric vehicle (EV) market, automobile manufacturers and new energy battery companies are seeking more environmentally friendly battery cooling methods. In particular, small power electric vehicles (such as low-speed electric equipment, urban microcars, etc.) have relatively small motor power and battery capacity, and the overall power consumption of the vehicle is not large, and the heat generation of the battery is also relatively low. The main application scenario is short-distance travel within the city, which usually does not require long-time high-speed driving.

[0003] In the process of conceiving and implementing the utility model, the applicant found at least the following problems: if the traditional cooling system is used, the complexity and manufacturing cost of the vehicle will be increased, and the energy density will be low.

[0004] The foregoing narrative is to provide general background information and may not constitute the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a battery box and electric equipment, improve the energy density in the battery box.

[0006] The utility model provides a battery box, comprising:

[0007] The box body comprises a box cover and a frame piece, and a containing cavity is formed between the box cover and the frame piece;

[0008] The frame piece comprises a bottom guard plate and a border piece, the box cover is arranged at the top end of the border piece, the bottom guard plate is located at the bottom end of the border piece, a plurality of lightening holes are formed in the border piece, and the plurality of lightening holes are in communication with the containing cavity;

[0009] The battery module is located in the containing cavity;

[0010] The lifting lug assembly comprises a lifting lug piece, and the lifting lug piece is detachably installed on the frame piece.

[0011] The utility model has the advantages that: through the plurality of lightening holes and the detachable design of the lifting lug piece, the overall weight of the battery box is reduced, when calculating the weight of the battery box, the lifting lug piece can be detached first, compared with the existing welding method, the weight of the battery box without the lifting lug piece is greatly reduced while ensuring the strength, the energy density in the battery box is improved, the weight of the battery box is reduced, which directly helps to improve the endurance of the vehicle and enhance the market competitiveness.

[0012] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0013] In some optional embodiments, the side wall of the frame member is a front panel.

[0014] The front panel and the bottom plate are both stamping parts.

[0015] It should be noted that the stamping process can form complex geometric shapes and reinforcing ribs on the bottom plate or the front panel, thereby improving the structural strength and rigidity. Through the stamping process, the amount of material can be reduced without affecting the strength, thereby reducing the weight of the bottom plate.

[0016] In some optional embodiments, the lifting lug assembly further comprises a lifting lug bracket, the lifting lug bracket being arranged on the outer side wall of the frame member;

[0017] The lifting lug member is detachably installed on the lifting lug bracket.

[0018] It should be noted that the detachable design of the lifting lug member allows installation and disassembly as needed, while meeting certain lifting lug functions, it can reduce the weight of the battery box, and thus improve the battery box density.

[0019] In some optional embodiments, the lifting lug assembly further comprises a connecting member, a first mounting hole is formed on the lifting lug member, a second mounting hole is formed on the lifting lug bracket, and the connecting member passes through the first mounting hole and the second mounting hole in sequence to connect the lifting lug member and the lifting lug bracket.

[0020] It should be noted that the connecting member firmly connects the lifting lug member and the lifting lug bracket, ensuring the stability and reliability between the two during use, ensuring the safety of the battery box during lifting and moving, and reducing the risk of accidental falling or damage; in addition, the design of the connecting member makes the installation and disassembly of the lifting lug member more simple and fast, reducing the operation time and complexity, and improving the maintenance efficiency.

[0021] In some optional embodiments, the lifting lug bracket is welded to the outer side wall of the frame member;

[0022] A plurality of weight reduction holes are formed in the plurality of side walls of the frame member.

[0023] It should be noted that the welding of the lifting lug bracket on the outer side wall of the frame member provides a firm connection, ensuring the stability and safety of the lifting lug assembly during lifting and moving.

[0024] In some optional embodiments, the box further comprises a support beam assembly, the support beam assembly being arranged on the bottom plate, and the battery module being arranged on the support beam assembly;

[0025] The support beam assembly comprises a first support beam and a second support beam;

[0026] The first support beam is arranged on the bottom plate along a first direction and is located at the middle of the frame member;

[0027] The second support beam is arranged along a second direction on the bottom guard plate and located on a side facing the front panel;

[0028] The first direction and the second direction have an included angle.

[0029] It should be noted that by arranging the first support beam and the second support beam in different directions, a multi-directional support structure is formed, and the multi-directional support beam design can provide more mounting and fixing points, increase the flexibility and convenience of battery module installation, effectively improve the structural strength and rigidity of the entire battery box, and enhance the carrying capacity.

[0030] In some optional embodiments, the frame member is rolled steel and has a hollow structure; and / or,

[0031] The first support beam and the second support beam are both rolled steel and have a hollow structure.

[0032] It should be noted that the hollow structure significantly reduces the weight of the assembly while maintaining the necessary strength, thereby reducing the weight of the battery box and reducing the amount of material used, thereby reducing production costs, while also meeting environmental and sustainable development requirements.

[0033] In some optional embodiments, the first support beam is connected between the side wall of the second support beam and the side wall of the frame member.

[0034] It should be noted that by connecting the first support beam between the side walls of the second support beam and the frame member, a stable triangular or polygonal support structure is formed, and through multi-point connection, the support beam assembly can provide higher stability and reduce vibration and displacement during transportation and operation.

[0035] In some optional embodiments, the battery box includes a sealing member arranged between the box cover and the frame member.

[0036] It should be noted that the sealing member effectively prevents dust, moisture and other external contaminants from entering the interior of the battery box, and the battery box can achieve good air tightness, prevent internal gas leakage, maintain a stable environment inside the battery box, and protect the safety and performance of the battery module and other internal components.

[0037] In addition, the utility model also provides a kind of electric equipment, including above-mentioned battery box.

[0038] The battery box and the electric equipment provided by the utility model, the electric equipment includes the battery box;The battery box includes a box body, including a box cover and a frame piece, a containing cavity is surrounded between the box cover and the frame piece;The frame piece includes a bottom guard plate and a border piece, the box cover is arranged at the top end of the border piece, the bottom guard plate is located at the bottom end of the border piece, a plurality of lightening holes are arranged on the border piece, and the plurality of lightening holes are all communicated with the containing cavity;A battery module is located in the containing cavity;A lifting lug assembly, the lifting lug assembly includes a lifting lug piece, and the lifting lug piece is detachably installed on the frame piece.

[0039] Through the plurality of lightening holes and the detachable design of the lifting lug piece, the whole weight of the battery box is reduced, when the weight of the battery box is calculated, the lifting lug piece is first detached, compared with the existing welding mode, the weighed battery box is without the weight of the lifting lug piece, the whole weight of the battery box is greatly reduced while the strength is guaranteed, the energy density in the battery box is improved, and the weight reduction of the battery box directly helps to improve the endurance of the vehicle and enhance the market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0040] The above and other objects, features and advantages of the embodiments of the utility model will become more readily understood from the following detailed description when considered in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model will be illustrated by way of example and not by way of limitation in the various figures wherein:

[0041] Figure 1 It is an explosion schematic view of the battery box of the embodiments of the utility model;

[0042] Figure 2 It is a top view of the battery box of the embodiments of the utility model;

[0043] Figure 3 It is an assembly schematic view of the frame piece and the support beam assembly in the battery box of the embodiments of the utility model.

[0044] Reference signs:

[0045] 200 - battery box;

[0046] 100 - box body;110 - box cover;

[0047] 120 - frame piece;121 - bottom guard plate;122 - border piece;1221 - lightening hole;1222 - front panel;

[0048] 130 - lifting lug assembly;131 - lifting lug piece;132 - lifting lug support;133 - connecting piece;

[0049] 140 - support beam assembly;141 - first support beam;142 - second support beam;

[0050] 150 - sealing piece;160 - mounting support. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. In the absence of conflict, the following embodiments and features can be combined with each other.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] In the process of conceiving and implementing this utility model, the applicant discovered at least the following problems: if a traditional cooling system is used, it will increase the complexity and manufacturing cost of the vehicle, and the energy density will be low.

[0056] The battery box proposed in this utility model reduces the overall weight of the battery box through multiple weight-reduction holes and a detachable lifting lug design. When calculating the weight of the battery box, the lifting lug can be removed first. Compared with the existing welding method, the weight of the battery box is greatly reduced without the weight of the lifting lug, while maintaining strength. This increases the energy density inside the battery box, and the weight reduction directly helps to improve the vehicle's range and enhance its market competitiveness.

[0057] The battery box provided by this utility model will be described in detail below with reference to specific embodiments.

[0058] Figure 1 This is a schematic diagram of the battery box explosion according to an embodiment of the present invention. Figure 2 This is a top view of the battery box according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the assembly of the frame component and the support beam assembly in the battery box according to an embodiment of the present utility model.

[0059] like Figures 1 to 3 As shown, this embodiment of the utility model proposes a battery box 200, comprising:

[0060] The box body 100 includes a box cover 110 and a frame member 120, and the box cover 110 and the frame member 120 form a receiving cavity;

[0061] The frame component 120 includes a bottom protective plate 121 and a side frame component 122. The box cover 110 is located at the top of the side frame component 122, and the bottom protective plate 121 is located at the bottom of the side frame component 122. Multiple weight-reducing holes 1221 are opened on the side frame component 122, and the multiple weight-reducing holes 1221 are all connected to the receiving cavity.

[0062] The battery module is located inside the housing cavity;

[0063] The lifting lug assembly 130 includes a lifting lug 131, which is detachably mounted on the frame member 120.

[0064] It is understandable that the purpose of the cavity is to house the battery module. It is also easy to understand that the cavity is sealed to prevent side reactions from occurring within the battery cells, which could affect the cell performance.

[0065] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery module. Specifically, it can be adjusted according to the actual situation. This application embodiment does not impose too many restrictions here.

[0066] In this embodiment, the battery module can be configured as a rectangular structure. The battery module can be located inside the housing 100.

[0067] Understandably, the housing 100 can be used to support the battery module.

[0068] The dimensions of the aforementioned housing 100 can be set according to actual needs, and this application embodiment does not impose any restrictions on them.

[0069] In addition, it should be noted that the shape of the box 100 is not limited in this embodiment. For example, the box 100 can be a regular shape such as a cuboid or a cylinder. Of course, the box 100 can also be other irregular shapes.

[0070] In one possible implementation, the housing 100 can be a rectangular structure, and the size of the housing 100 can be greater than or equal to the size of the battery module, so that the housing 100 can support the battery module.

[0071] In some embodiments, the cover and bottom protective plate 121 provide additional protection for the battery module, preventing external environmental factors such as dust, moisture, and physical impacts from affecting the battery module, improving the overall structural integrity of the housing 100, and providing additional rigidity and strength. At the same time, this design also helps to seal the battery housing and maintain the stability of the internal environment.

[0072] In some embodiments, the materials and structure of the cover plate and bottom guard plate 121 can be adjusted according to specific application requirements to adapt to different environmental conditions and performance requirements.

[0073] In some embodiments, the cover plate is made of composite material PU compression molding, which is a lightweight composite material that can further achieve a lightweight structural design.

[0074] It should be noted that multiple weight-reduction holes 1221 are provided on the frame component 120. The multiple weight-reduction holes 1221 on the frame component 120 effectively reduce the amount of material used, thereby reducing the weight of the entire battery box. The weight-reduction holes 1221 are connected to the receiving cavity, which promotes air circulation and enhances the heat dissipation performance of the battery box.

[0075] It should be noted that the lifting lug 131 can be detachably installed on the frame 120. The design of the lifting lug assembly 130 makes the installation and removal of the battery box more convenient. Especially when it is necessary to repair or replace the battery module, the detachable design of the lifting lug 131 provides flexibility and can be adjusted or replaced according to specific installation requirements to adapt to different application scenarios.

[0076] Through the above-mentioned design, namely the multiple weight-reducing holes 1221 and the detachable design of the lifting lugs 131, the overall weight of the battery box 200 is reduced. When calculating the weight of the battery box 200, the lifting lugs 131 can be removed first. Compared with the existing welding method, the weight of the battery box 200 is greatly reduced without the weight of the lifting lugs 131, while maintaining strength. This increases the energy density inside the battery box 200, and the reduction in the weight of the battery box 200 directly helps to improve the vehicle's range and enhance its market competitiveness.

[0077] Continue to refer to Figures 1 to 3 In some alternative embodiments, one side wall of the frame member 122 is the front panel 1222;

[0078] Both the front panel 1222 and the bottom guard plate 121 are stamped parts.

[0079] It should be noted that the stamping process can form complex geometric shapes and reinforcing ribs on the bottom guard plate 121 or the front panel 1222, thereby improving its structural strength and rigidity. Through the stamping process, the amount of material used can be reduced without affecting strength, thus reducing the weight of the bottom guard plate 121.

[0080] In some embodiments, the front panel 1222 and the bottom guard plate 121 are both high-strength steel plates formed by stamping, which can reduce the thickness of the stamping plate material and replace the cavity structure. Using high-strength steel plates can reduce the thickness of the plate while maintaining or improving the strength, thereby reducing the amount of material used, reducing weight, and increasing energy density.

[0081] In some embodiments, the front panel 1222 is a stamped sheet and has holes that match the electrical components. The single-layer stamped sheet achieves lightweight design while ensuring structural strength.

[0082] Continue to refer to Figures 1 to 3 In some alternative embodiments, the lug assembly 130 further includes a lug bracket 132 disposed on the outer side wall of the frame member 120;

[0083] The lifting lug 131 can be detachably installed on the lifting lug bracket 132.

[0084] It should be noted that the detachable design of the lifting lug 131 allows for installation and removal as needed. While fulfilling certain lifting lug functions, it can reduce the weight of the battery box 200, thereby increasing the density of the battery box 200.

[0085] In some embodiments, the lug bracket 132 is disposed on the outer side wall of the frame member 120, providing a sturdy support point to ensure the stability and safety of the lug assembly 130 when bearing load.

[0086] In some embodiments, there are 6 lifting lug brackets 132, which are welded to the left and right sides of the frame member 120 respectively, to ensure connection strength while dispersing stress.

[0087] In some alternative embodiments, the lug assembly 130 further includes a connector 133. The lug 131 has a first mounting hole, and the lug bracket 132 has a second mounting hole. The connector 133 passes through the first mounting hole and the second mounting hole in sequence to connect the lug 131 and the lug bracket 132.

[0088] It should be noted that the lifting lug 131 and the lifting lug bracket 132 are firmly connected by the connector 133, which ensures the stability and reliability of the two during use, ensures the safety of the battery box 200 during hoisting and moving, and reduces the risk of accidental detachment or damage. In addition, the design of the connector 133 makes the installation and disassembly of the lifting lug 131 simpler and faster, reduces operation time and complexity, and improves maintenance efficiency.

[0089] In addition, the standardized connector 133 design reduces manufacturing costs and is more economical and efficient in maintenance and replacement.

[0090] It should be noted that, in this embodiment of the application, considering the cost of the connector 133, the connector 133 can be a threaded fastener. Correspondingly, a first mounting hole is provided on the lug 131. The first mounting hole can be a threaded hole. The connector 133 can pass through the first mounting hole and can be adjusted for fixed and disassembled by tightening or loosening.

[0091] In addition, a second mounting hole is provided on the corresponding lug bracket 132. The second mounting hole can also be a threaded hole. The connector 133 can pass through the first mounting hole and can be adjusted for fixed and disassembled by tightening or loosening.

[0092] Specifically, the connector 133 passes through the first mounting hole and the second mounting hole in sequence and is tightened, thereby fixing the lifting lug 131 to the lifting lug bracket 132. Of course, when it is necessary to remove the lifting lug 131, simply loosen the connector 133 and then remove the connector 133 from the second mounting hole and the first mounting hole in sequence.

[0093] In some alternative embodiments, the lug bracket 132 is welded to the outer wall of the frame member 120;

[0094] Multiple weight-reducing holes 1221 are respectively opened on multiple side walls of the frame member 122.

[0095] It should be noted that the lug bracket 132 is fixed to the outer wall of the frame member 120 by welding, which provides a robust connection and ensures the stability and safety of the lug assembly 130 during hoisting and movement.

[0096] In addition, weight reduction holes 1221 are opened on multiple side walls of the frame component 122, which can effectively reduce the use of materials, reduce the overall weight of the battery box 200, improve energy efficiency and vehicle range. While ensuring lightweight, the weight reduction holes 1221 also increase the processability of electrophoretic exhaust leakage.

[0097] In some embodiments, the weight-reducing hole 1221 is arc-shaped. Compared with straight holes, arc-shaped holes can better maintain the integrity and stability of the structure when subjected to external forces, and provide higher resistance to deformation.

[0098] In some alternative embodiments, the housing 100 further includes a support beam assembly 140, which is disposed on the bottom protective plate 121, and the battery module is disposed on the support beam assembly 140.

[0099] The support beam assembly 140 includes a first support beam 141 and a second support beam 142;

[0100] The first support beam 141 is disposed along the first direction on the bottom guard plate 121 and is located in the middle of the frame member 122;

[0101] The second support beam 142 is disposed along the second direction on the bottom guard plate 121 and is located on the side facing the front panel 1222;

[0102] There is an angle between the first direction and the second direction.

[0103] It should be noted that by setting the first support beam 141 and the second support beam 142 in different directions, a multi-directional support structure is formed. The multi-directional support beam design can provide more installation and fixing points, increase the flexibility and convenience of battery module installation, effectively improve the structural strength and rigidity of the entire battery box, and enhance its load-bearing capacity.

[0104] In addition, the angled design allows the support beam to disperse and absorb external impact forces in multiple directions, improving the impact resistance of the battery box and increasing safety.

[0105] In some embodiments, there are two first support beams 141, both located in the middle region of the frame member 122, and one second support beam 142, located on one side near the front panel 1222. Compared with the existing excessive number of support beams, this application uses fewer support beams, which can reduce the weight of the box 100 while ensuring the overall strength of the box 100.

[0106] Wherein, the first direction is X, and the second direction is Y.

[0107] In some optional embodiments, the border member 122 is made of rolled steel and has a hollow structure; and / or,

[0108] Both the first support beam 141 and the second support beam 142 are made of rolled steel and have hollow structures.

[0109] It should be noted that while maintaining the necessary strength, the hollow structure significantly reduces the weight of the components, thereby reducing the weight of the battery box, reducing the amount of material used, lowering the production cost, and meeting the requirements of environmental protection and sustainable development.

[0110] In some embodiments, the rolled steel has excellent mechanical properties, such as high strength and durability. Even in the hollow structure, it can still provide sufficient support force and impact resistance to ensure the safety and stability of the battery box.

[0111] In addition, the hollow structure helps with air circulation, enhancing the heat dissipation effect, and thus optimizing the thermal management performance of the battery box. This is very important for extending the battery life and improving safety.

[0112] Continuing to refer to Figures 1 to 3 , in some optional embodiments, the first support beam 141 is connected between the side wall of the second support beam 142 and the side wall of the border member 122.

[0113] It should be noted that by connecting the first support beam 141 between the second support beam 142 and the side wall of the border member 122, a stable triangular or polygonal support structure is formed. Through multi-point connection, the support beam assembly 140 can provide higher stability, reducing vibration and displacement during transportation and operation.

[0114] In addition, the connection design of the first support beam 141 helps to distribute the load more evenly onto the second support beam 142 and the border member 122, reducing local stress concentration and extending the service life of the structure.

[0115] In some embodiments, the bottom beam surface of the cross-section of the first support beam 141 is in a "U" shape, and the upper part is in a "square" shape. It is formed by welding two beams together, and weight-reducing process holes are opened at the bottom, which reduces weight and increases the processability of electrophoresis exhaust leakage.

[0116] In some embodiments, the battery box 200 further includes four mounting brackets 160, which are welded and fixed to the outer bottom of the border member 122 for fixing the vehicle floor.

[0117] In some optional embodiments, the battery box 200 includes a seal 150, which is disposed between the box cover 110 and the border member 122.

[0118] It should be noted that the seal 150 effectively prevents dust, moisture and other external contaminants from entering the battery box. The battery box can achieve good airtightness, prevent internal gas leakage, maintain a stable environment inside the battery box, and protect the safety and performance of the battery module and other internal components.

[0119] In addition, the seal 150 can provide a certain buffer between the cover 110 and the frame 122, reducing the transmission of vibration and noise, and improving ride comfort and battery box durability.

[0120] In addition, the seal 150 helps isolate the electrical system inside the battery box, reducing the risk of short circuits or other electrical faults and improving overall safety.

[0121] In some embodiments, the seal 150 may be a sealing ring.

[0122] In some embodiments, the seal 150 is made of foamed silicone and is adhered between the end of the lid 110 and the end of the frame member 122.

[0123] The battery box provided in this embodiment of the utility model includes a box body, a box cover and a frame, which together form a receiving cavity; the frame includes a bottom protective plate and a side frame, the box cover is located at the top of the side frame, the bottom protective plate is located at the bottom of the side frame, and the side frame has multiple weight-reducing holes, all of which are connected to the receiving cavity; a battery module is located in the receiving cavity; and a lifting lug assembly, which includes lifting lugs that are detachably installed on the frame.

[0124] By employing multiple weight-reduction holes and a detachable lifting lug design, the overall weight of the battery box is reduced. When calculating the weight of the battery box, the lifting lugs can be removed first. Compared to existing welding methods, the weighted battery box, without the weight of the lifting lugs, significantly reduces its overall weight while maintaining strength. This increases the energy density within the battery box, and the reduced weight directly contributes to improving the vehicle's range and enhancing its market competitiveness.

[0125] In addition, this utility model embodiment also provides an electrical device, including the battery box 200 described above.

[0126] It should be noted that the specific structure of the battery box 200 will not be specified here; please refer to the above.

[0127] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0128] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery box (200), characterized in that, include: The box body (100) includes a box cover (110) and a frame member (120), wherein the box cover (110) and the frame member (120) form a receiving cavity; The frame component (120) includes a bottom protective plate (121) and a side frame component (122). The box cover (110) is located at the top of the side frame component (122), and the bottom protective plate (121) is located at the bottom of the side frame component (122). The side frame component (122) has multiple weight-reducing holes (1221), and all of the multiple weight-reducing holes (1221) are connected to the receiving cavity. The battery module is located within the receiving cavity; The lifting lug assembly (130) includes a lifting lug (131) which is detachably mounted on the frame member (120).

2. The battery box (200) according to claim 1, characterized in that, One side wall of the frame member (122) is the front panel (1222); Both the front panel (1222) and the bottom guard plate (121) are stamped parts.

3. The battery box (200) according to claim 2, characterized in that, The lug assembly (130) further includes a lug bracket (132), which is disposed on the outer side wall of the frame member (120); The lifting lug (131) can be detachably installed on the lifting lug bracket (132).

4. The battery box (200) according to claim 3, characterized in that, The lug assembly (130) further includes a connector (133). The lug (131) has a first mounting hole, and the lug bracket (132) has a second mounting hole. The connector (133) passes through the first mounting hole and the second mounting hole in sequence to connect the lug (131) and the lug bracket (132).

5. The battery box (200) according to claim 3, characterized in that, The lug bracket (132) is welded to the outer wall of the frame member (120); Multiple weight-reducing holes (1221) are respectively opened on multiple side walls of the frame member (122).

6. The battery box (200) according to any one of claims 2-5, characterized in that, The housing (100) also includes a support beam assembly (140), which is disposed on the bottom protective plate (121), and the battery module is disposed on the support beam assembly (140); The support beam assembly (140) includes a first support beam (141) and a second support beam (142); The first support beam (141) is disposed along the first direction on the bottom guard plate (121) and is located in the middle of the frame member (122); The second support beam (142) is disposed along the second direction on the bottom guard plate (121) and is located on the side facing the front panel (1222); There is an angle between the first direction and the second direction.

7. The battery box (200) according to claim 6, characterized in that, The frame member (122) is made of rolled steel and has a hollow structure; and / or, Both the first support beam (141) and the second support beam (142) are rolled steel and are hollow structures.

8. The battery box (200) according to claim 6, characterized in that, The first support beam (141) is connected between the side wall of the second support beam (142) and the side wall of the frame member (122).

9. The battery box (200) according to any one of claims 1-4, characterized in that, The battery box (200) includes a seal (150) disposed between the box cover (110) and the frame member (122).

10. An electrical appliance, characterized in that, Includes the battery box (200) as described in any one of claims 1 to 9.

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