Storage battery box and electric vehicle

Abstract

The embodiment of the utility model provides a storage battery box and an electric vehicle, and relates to the technical field of storage battery boxes. The storage battery box comprises an upper shell, a lower shell and a battery assembly, wherein the upper shell is provided with a mounting space and an opening is formed in one side of the upper shell; the lower shell is connected to the opening to seal the installation space. The battery assembly is located in the installation space and fixedly connected with the upper shell, the battery assembly comprises a battery cell and clamping plates installed on the two sides of the battery cell, an electrical part is installed on one clamping plate, and the two clamping plates are both fixedly connected with the upper shell. The upper shell is designed to be provided with the installation space, the lower shell is only used as an independent box body seal and an installation unit of external equipment, materials can be saved, and the production cost is reduced. By integrating the electrical part and the battery cell into an integral component, the mounting space can be saved, and the mounting and the dismounting are also convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box and an electric vehicle. Background Art

[0002] Currently, batteries are mostly packaged in separate boxes with modules and electrical components. The modules are grouped and placed in the box, and the electrical components are installed separately on the box.

[0003] However, due to the small size of the battery, the installation space for electrical components is limited after the module is placed in the box, which makes assembly inconvenient, and requires a longer high and low voltage connection space to be reserved, which increases the cost. Utility Model Content

[0004] The utility model provides a battery box and an electric vehicle, which integrate battery cores and electrical components, thereby saving installation space; and the battery assembly is connected to the upper shell, thereby reducing the material used in manufacturing the battery box and lowering the cost.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] An embodiment of the present invention provides a battery box, which includes:

[0007] An upper housing having an installation space and an opening on one side;

[0008] a lower shell connected to the opening to close the installation space;

[0009] A battery assembly is located in the installation space and is fixedly connected to the upper shell. The battery assembly includes a battery cell and a splint installed on both sides of the battery cell, one of the splints is installed with an electrical component, and the splints are all fixedly connected to the upper shell.

[0010] In an optional embodiment, a connecting column is provided on an edge of the lower shell, and a connecting hole is provided on an edge of the opening, and the connecting column is used to be plugged into the connecting hole to fix the upper shell and the lower shell.

[0011] In an optional embodiment, the axial direction of the connecting column and the connecting hole is consistent with the orientation of the opening.

[0012] In an optional embodiment, a connecting piece is provided on the clamping plate, and the connecting piece is fixedly connected to the upper shell.

[0013] In an optional embodiment, positive and negative poles are provided on the upper shell, and high-voltage connectors are further provided on the clamping plate, and the high-voltage connectors are used to connect the positive and negative poles and the battery cells.

[0014] In an optional embodiment, the high-voltage connector and the electrical component are located on the same clamping plate.

[0015] In an optional embodiment, a nut column is provided on the clamping plate, and the electrical component is fixed to the clamping plate through the nut column.

[0016] In an optional embodiment, a sealing ring is provided between the upper shell and the lower shell.

[0017] In an optional embodiment, the upper shell is provided with a handle.

[0018] An embodiment of the present utility model further provides an electric vehicle, comprising the battery box described in any one of the above embodiments.

[0019] The battery box and electric vehicle of the present utility model have the following beneficial effects:

[0020] The battery case comprises an upper housing, a lower housing, and a battery assembly. The upper housing has a mounting space and an opening on one side; the lower housing is connected to the opening to enclose the mounting space. By designing the upper housing with the mounting space, the lower housing serves only as a separate housing for sealing and mounting external equipment, saving materials and reducing production costs. Furthermore, the battery assembly is located within the mounting space and fixedly connected to the upper housing. The battery assembly includes battery cells and two clamping plates mounted on either side of the cell, one of which houses the electrical components. By integrating the electrical components and battery cells into a single unit, installation space is saved and installation and removal are facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention 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 any creative work.

[0022] Figure 1 A schematic diagram of a battery box provided in an embodiment of the present utility model;

[0023] Figure 2 This is a schematic exploded view of a battery box provided in an embodiment of the present invention from a first perspective;

[0024] Figure 3 This is an exploded schematic diagram of a battery box provided in an embodiment of the present invention from a second perspective;

[0025] Figure 4 A schematic diagram of an upper housing provided in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of a splint provided in an embodiment of the present utility model.

[0027] Icons: 1000-battery box; 100-upper shell; 110-installation space; 120-opening; 130-connection hole; 140-positive and negative poles; 150-handle; 160-vent valve; 200-lower shell; 210-connection column; 300-battery assembly; 310-battery cell; 320-clamping plate; 321-connector; 322-nut column; 330-electrical parts; 340-high-voltage connector; 400-sealing ring; 500-bus; 600-foam. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0030] 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, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0033] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0034] A battery, also known as a secondary cell or lead-acid battery, is a device that converts chemical energy into electrical energy and stores it. Charging regenerates the internal active materials, storing electrical energy as chemical energy; when discharged, the chemical energy is converted back into electrical energy. A typical battery is a lead-acid battery, primarily composed of lead and its oxides as electrodes and sulfuric acid as the electrolyte. Batteries operate based on the direct conversion of chemical energy into electrical energy. They are designed to be rechargeable and rechargeable through reversible chemical reactions. During discharge, metallic lead at the negative electrode undergoes an oxidation reaction to produce lead sulfate, while lead dioxide at the positive electrode undergoes a reduction reaction to also produce lead sulfate. During charging, these reactions reverse, restoring the battery to its pre-discharge state. Batteries play a vital role in vehicles, providing power for starting, lighting, and other electronic systems.

[0035] However, currently, cylindrical lithium-ion batteries are often packaged with modules and electrical components separately housed in boxes. The modules are grouped together and placed in the box, while the electrical components are installed separately. Due to the battery's small size, the space available for installing the electrical components is limited, making assembly inconvenient and requiring more space for high and low voltage connections, which increases costs.

[0036] Based on this, see Figure 1 、 Figure 2 and Figure 3 The battery box 1000 provided in the embodiment of the present invention can effectively improve the technical problems mentioned above. The battery box 1000 integrates the battery cells 310 and the electrical components 330 together, which can save installation space 110, and the battery assembly 300 is connected to the upper shell 100, which can reduce the materials used in manufacturing the battery box 1000 and reduce costs. The battery box 1000 can be applied to electrical equipment such as electric vehicles. Electrical equipment equipped with the battery box 1000 all have the functions mentioned above, which will not be described in detail here. Specifically, the battery box 1000 in this embodiment is mainly used for low-voltage batteries.

[0037] This embodiment provides an electric vehicle, which includes a vehicle body and a battery box 1000. The battery box 1000 is disposed in the vehicle body and provides electrical energy to the vehicle body to realize various functions of the vehicle body.

[0038] The structure of the battery box 1000 is described in detail below.

[0039] Figure 1 Schematic diagram of a battery box 1000 provided in an embodiment of the present utility model; Figure 2 This is an exploded schematic diagram of a battery box 1000 provided in an embodiment of the present invention from a first perspective; Figure 3This is a schematic exploded view of the battery box 1000 provided in an embodiment of the present invention from a second perspective.

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, the battery case 1000 provided in this embodiment includes an upper housing 100, a lower housing 200, and a battery assembly 300. The upper housing 100 has an installation space 110 and an opening 120 on one side. The lower housing 200 is connected to the opening 120 to enclose the installation space 110. The battery assembly 300 is located within the installation space 110 and fixedly connected to the upper housing 100. The battery assembly 300 includes a battery cell 310 and clamping plates 320 mounted on either side of the battery cell 310. One of the clamping plates 320 is mounted with an electrical component 330. Both clamping plates 320 are fixedly connected to the upper housing 100. By designing the upper housing 100 with the installation space 110, the lower housing 200 serves only as a separate housing for sealing and mounting external equipment. This saves materials and reduces production costs. By integrating the electrical component 330 and the battery cell 310 into a single component, the installation space 110 is reduced and installation and removal are facilitated. In addition, the battery assemblies 300 are suspended on the upper shell 100 through the clamping plates 320 and are not rigidly connected to the lower shell 200, which can reduce damage to the battery assemblies 300 caused by vibration of the lower shell 200 during use.

[0041] Specifically, see Figure 1-Figure 3 , and combined with Figure 4 , Figure 4 This is a schematic diagram of the upper shell 100 provided in an embodiment of the present invention. In this embodiment, the lower shell 200 is provided with connecting posts 210 at the edge, and connecting holes 130 at the edge of the opening 120. The connecting posts 210 are used to plug into the connecting holes 130 to secure the upper shell 100 and the lower shell 200. Alternatively, the connecting posts 210 can be provided at one end of the opening 120 of the upper shell 100, and the connecting holes 130 can be provided at corresponding positions on the lower shell 200. The connecting posts 210 and the connecting holes 130 can cooperate to secure the upper and lower shells 200. Furthermore, both the connecting posts 210 and the connecting holes 130 can be provided at one end of the opening 120 of the upper shell 100; the connecting holes 130 can be provided on the lower shell 200 at positions corresponding to the connecting posts 210 of the upper shell 100, and the connecting posts 210 can be provided on the lower shell 200 at positions corresponding to the connecting holes 130 of the upper shell 100. Connecting the upper and lower shells 200 by plugging can simplify the assembly process and save installation time. Of course, the upper shell 100 and the lower shell 200 can also adopt a detachable connection method such as a snap connection, which is not limited here, to facilitate subsequent maintenance and replacement.

[0042] To save installation space 110 and ensure the stability of the connection between the upper and lower shells 200, the axial directions of the connecting pillars 210 and the connecting holes 130 in this embodiment are consistent with the orientation of the opening 120. Of course, the connecting pillars 210 and the connecting holes 130 can also be perpendicular to the orientation of the opening 120, which is not limited here.

[0043] In order to save the installation space 110 inside the battery box 1000, please continue to refer to Figure 2 and Figure 3 , and combined with Figure 4 In this embodiment, a connector 321 is provided on the clamping plate 320, and the connector 321 is fixedly connected to the upper shell 100. That is, the battery assembly 300 is suspended on the upper shell 100 via the connector 321. Specifically, a mounting hole is provided on the connector 321, and a mounting hole is also provided at a corresponding position on the upper shell 100. Threaded fasteners are provided through the mounting holes of the connector 321 and the upper shell 100 to achieve the connection between the connector 321 and the upper shell 100. The connector 321 can be welded to the clamping plate 320, or it can be connected to the clamping plate 320 by threaded fasteners such as bolts and screws, which are not limited here.

[0044] Please continue reading Figure 2 and Figure 3 In this embodiment, the upper housing 100 is provided with positive and negative poles 140, and the clamping plate 320 is also provided with a high-voltage connector 340. The high-voltage connector 340 is used to connect the positive and negative poles 140 and the battery cell 310. Specifically, the high-voltage connector 340 and the electrical component 330 are located on the same clamping plate 320. Of course, the high-voltage connector 340 and the electrical component 330 can also be provided on two clamping plates 320 respectively, depending on the actual installation space 110 requirements, which is not limited here. By providing the high-voltage connector 340 on the clamping plate 320, the installation space 110 occupied by the high-voltage connector 340 in the battery box 1000 can also be reduced.

[0045] To prevent the upper and lower shells 200 from damaging the battery cells 310, please refer to Figure 2 and Figure 3 The battery box 1000 in this embodiment further includes a foam 600 . The foam 600 is disposed between the battery cell 310 and the upper shell 100 . The foam 600 is also disposed between the battery cell 310 and the lower shell 200 .

[0046] Please continue reading Figure 2 and Figure 3To ensure a tight seal within the battery case 1000, a sealing ring 400 is provided between the upper housing 100 and the lower housing 200 in this embodiment. The sealing ring 400 prevents electrolyte leakage, ensuring safe battery operation. The sealing ring 400 also plays a crucial role in isolating the battery from external contaminants. During battery use, moisture, dust, and impurities from the air may enter the battery, corroding and damaging the battery materials. The sealing ring 400 keeps these external contaminants out, maintaining a pure and stable internal battery environment. Furthermore, the sealing ring 400 not only seals the battery but also regulates the pressure differential between the battery interior and exterior, ensuring pressure balance during normal operation. Good sealing reduces energy loss and heat accumulation within the battery, improving its energy efficiency and cycle life. Furthermore, the sealing ring 400 reduces electrochemical side reactions and impurity generation within the battery, maintaining the purity and activity of the battery materials, thereby further enhancing battery performance. The provision of the sealing ring 400 is crucial for ensuring safe battery operation, extending its service life, and improving its overall performance.

[0047] To facilitate operators to carry the assembled battery box 1000, please refer to Figure 2 and Figure 3 In this embodiment, the upper housing 100 is provided with a handle 150. Specifically, two handles 150 are provided at the end of the upper housing 100 away from the opening 120. Furthermore, the upper housing 100 in this embodiment is also provided with a vent valve 160. The vent valve 160 not only helps maintain the cleanliness of the interior of the battery box 1000, but also maintains the air pressure balance inside and outside the battery box 1000, thereby ensuring stable and reliable operation of the battery system. Furthermore, the vent valve 160 can act as a relief port to promptly release pressure when the pressure rapidly increases due to thermal runaway or other conditions within the battery cells 310 of the battery box 1000, thereby preventing battery explosion and improving safety performance.

[0048] The above mentioned "one of the clamping plates 320 is equipped with an electrical component 330" is specifically referred to in Figure 2 and Figure 3 , and combined with Figure 5 , Figure 5 This is a schematic diagram of a clamping plate 320 provided in an embodiment of the present invention. In this embodiment, a nut column 322 is provided on the clamping plate 320, and an electrical component 330 is fixed to the clamping plate 320 via the nut column 322. Of course, other mounting structures can also be provided on the clamping plate 320 to achieve the connection between the electrical component 330 and the clamping plate 320, and this is not limited here.

[0049] Please continue reading Figure 5In this embodiment, the clamping plate 320 is provided with a plurality of battery cell 310 mounting holes, and the plurality of battery cell 310 mounting holes are distributed at intervals, and a bus 500 mounting groove is also provided on the clamping plate 320. The bus 500 mounting groove is used to place the bus 500 so as to facilitate the subsequent welding installation of the battery cell 310 and the bus 500, saving installation time.

[0050] According to the battery box 1000 provided in this embodiment, the installation process is as follows:

[0051] The battery cell 310 is first installed between the two plywoods 320, and then the electrical components 330, low-voltage plug-ins, high-voltage connectors 340, etc. are set on the plywood 320, and then connected and assembled through a wiring harness to form the entire battery assembly 300. The entire battery assembly 300 is then connected to the upper shell 100, and the lower shell 200 is connected to the upper shell 100 to seal the battery assembly 300 in the installation space 110. The battery assemblies 300 are all suspended on the upper shell 100 and are not rigidly connected to the lower shell 200, which can reduce the damage to the battery assembly 300 caused by the vibration of the lower shell 200 during use. At the same time, the above assembly method saves assembly space for the battery assembly 300 in the box, and the assembly efficiency is higher and the assembly time is shortened. In addition, this assembly method does not require reserving a long high-voltage connection, saving costs.

[0052] In summary, the battery case 1000 includes an upper shell 100, a lower shell 200, and a battery assembly 300. The upper shell 100 has an installation space 110 and an opening 120 on one side. The lower shell 200 is connected to the opening 120 to enclose the installation space 110. The battery assembly 300 is located within the installation space 110 and is fixedly connected to the upper shell 100. The battery assembly 300 includes a battery cell 310 and clamping plates 320 mounted on both sides of the battery cell 310. One of the clamping plates 320 has an electrical component 330 mounted on it. By designing the upper shell 100 with the installation space 110, the lower shell 200 is used only as a separate box sealing and installation unit for external equipment, which can save materials and reduce production costs. By integrating the electrical component 330 and the battery cell 310 into a single component, the installation space 110 can be saved and installation and removal are also facilitated.

[0053] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A battery box, characterized in that: include: An upper housing (100), the upper housing (100) having an installation space (110) and an opening (120) provided on one side; a lower housing (200), the lower housing (200) being connected to the opening (120) to close the installation space (110); A battery assembly (300) is located in the installation space (110) and fixedly connected to the upper shell (100). The battery assembly (300) includes a battery cell (310) and clamping plates (320) installed on both sides of the battery cell (310), wherein an electrical component (330) is installed on one of the clamping plates (320), and the clamping plates (320) are fixedly connected to the upper shell (100).

2. The battery box according to claim 1, characterized in that: The edge of the lower shell (200) is provided with a connecting column (210), and the edge of the opening (120) is provided with a connecting hole (130). The connecting column (210) is used to be plugged into the connecting hole (130) to fix the upper shell (100) and the lower shell (200).

3. The battery box according to claim 2, characterized in that: The axial directions of the connecting column (210) and the connecting hole (130) are consistent with the orientation of the opening (120).

4. The battery box according to claim 1, characterized in that: A connecting piece (321) is provided on the clamping plate (320), and the connecting piece (321) is fixedly connected to the upper shell (100).

5. The battery box according to claim 1, characterized in that: The upper shell (100) is provided with positive and negative poles (140), and the clamping plate (320) is further provided with a high-voltage connector (340), and the high-voltage connector (340) is used to connect the positive and negative poles (140) and the battery cell (310).

6. The battery box according to claim 5, characterized in that: The high-voltage connecting component (340) and the electrical component (330) are located on the same clamping plate (320).

7. The battery box according to claim 1, characterized in that: A nut column (322) is provided on the clamping plate (320), and the electrical component (330) is fixed to the clamping plate (320) via the nut column (322).

8. The battery box according to claim 1, characterized in that: A sealing ring (400) is provided between the upper shell (100) and the lower shell (200).

9. The battery box according to claim 1, characterized in that: The upper housing (100) is provided with a handle (150).

10. An electric vehicle, characterized in that: A battery box (1000) comprising the battery box (1000) according to any one of claims 1 to 9.

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