Battery box and electric vehicle

Abstract

The utility model aims at providing a battery box and an electric vehicle aiming at the problem that the shock absorption effect of the battery box in the horizontal front, back, left and right directions is poor, and the battery box comprises an outer box, a core box and a damping rod, a battery for providing electric energy for an electric vehicle is fixedly placed in the core box, the outer box is arranged on the outer side of the core box in a sleeving mode and does not make contact with the core box, a plurality of damping rods are arranged between the outer box and the core box, the two ends of each damping rod are universally hinged to the inner surface of the outer box and the outer surface of the core box respectively, and an interface used for being in butt joint with the battery is formed in the core box. The core box is provided with an interface used for being in butt joint with the outer box, the outer box is provided with an interface used for being in butt joint with a vehicle body, and the interface of the core box is connected with the interface of the outer box through an electric wire. The outer box and the core box are connected through the damping rods, rigid impact between the outer box and the core box caused by vibration is avoided, the damping rods in universal hinge joint can play a role in damping vibration from all directions, and therefore the battery box is high in damping performance.

Description

Technical Field

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

[0002] The battery box is an important device for storing electric energy in electric vehicles. It can place the batteries used in electric vehicles. During use, the battery components of existing electric vehicle battery boxes are very prone to failure due to vibration, and the shock absorption performance is limited, which seriously affects the service life of the battery components. Therefore, it is necessary to develop a battery box for electric vehicles with shock absorption function.

[0003] Chinese patent application number 201710134985.0 discloses a battery box for new energy vehicles with a shock-absorbing function, comprising a battery box body, a through slot formed on the front of the battery box body, a receiving slot formed on the top of the battery box body, the through slot and the receiving slot being connected, two symmetrical first chutes formed on the inner sidewall of the receiving slot, the first chutes being connected to the through slot, a baffle adapted to the receiving slot being placed inside the receiving slot, one side of the baffle being placed in the through slot, a first slider adapted to the first chutes being fixedly connected to the outer side of the baffle, and the first slider being snapped into the first chutes. This battery box for new energy vehicles with a shock-absorbing function can effectively buffer vibration forces, has high shock-absorbing performance, ensures effective heat dissipation within the battery box body, effectively blocks dust, provides good protection, effectively avoids damage to battery components, and effectively ensures the service life of battery components.

[0004] However, this device still has some shortcomings in actual use:

[0005] The battery box has a vertical shock-absorbing effect, but has poor shock-absorbing effect in the horizontal front, back, left and right directions. Utility Model Content

[0006] The utility model aims to provide a battery box and an electric vehicle to solve the problem that the battery box has poor shock absorption effect in the horizontal front, back, left and right directions.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] The utility model discloses a battery box, comprising: an outer box, a core box and a damping rod; a battery for providing electric energy for an electric vehicle is fixedly placed inside the core box, the outer box is sleeved on the outside of the core box without contact between the two, a plurality of damping rods are arranged between the outer box and the core box, the two ends of the damping rods are universally hinged to the inner surface of the outer box and the outer surface of the core box respectively, the core box is provided with an interface for docking with the battery, the core box is provided with an interface for docking with the outer box, the outer box is provided with an interface for docking with the vehicle body, and the interface of the core box and the interface of the outer box are connected by wires.

[0009] By adopting the above technical solution, the outer box and the core box are connected by a damping rod, which avoids the rigid impact between the two caused by vibration. The universally hinged damping rod can dampen vibrations from all directions, so the battery box has high shock absorption performance.

[0010] Preferably, a plurality of connecting ears are provided on the outer edge of the outer box, and the outer box is fixedly connected to the electric vehicle frame through the connecting ears.

[0011] By adopting the above technical solution, the connecting ear has a simple structure and a reliable connection, and the battery box can be conveniently fixed to the frame.

[0012] Preferably, the battery box further comprises a box cover, which is detachably fixedly connected to the top of the outer box, the shape and size of the box cover are adapted to the outer box, and a sealing strip is provided on the top of the outer box.

[0013] By adopting the above technical solution, a sealing strip is set between the box cover and the outer box to keep the inside of the battery box dry. Even if the electric vehicle wades through water, the batteries inside the battery box will not be short-circuited due to water ingress, causing battery damage or even danger.

[0014] Preferably, multiple vertical positioning plates are set inside the core box, the vertical positioning plates are set vertically and slidably connected to the inner surface of the core box, and an electric push rod is set between the vertical positioning plates and the core box, and the two ends of the electric push rod are respectively vertically fixedly connected between the vertical positioning plates and the inner surface of the core box.

[0015] Preferably, a horizontal positioning plate and a pressure strip are horizontally arranged inside the core box, the horizontal positioning plate is slidably connected to the inner surface of the core box, an electric push rod is arranged between the horizontal positioning plate and the core box, the two ends of the electric push rod are respectively vertically fixedly connected between the horizontal positioning plate and the inner surface of the core box, and the pressure strip is detachably fixedly connected to the upper surface of the core box.

[0016] By adopting the above technical solution, the vertical positioning plate and the horizontal positioning plate slide in the front-back, left-right or up-down directions under the action of the electric push rod, and batteries of various sizes can be fixed in the core box, thereby improving the versatility of the device.

[0017] Preferably, a first pressure sensor is provided between the vertical positioning plate and the battery, and a second pressure sensor is provided between the horizontal positioning plate and the battery.

[0018] By adopting the above technical solution, when the battery is installed in the battery box, the pressure between the positioning plate and the battery is small, and the fixing force for the battery is insufficient, when the pressure sensor 1 and the pressure sensor 2 detect that the pressure value between the two is lower than the rated range; or when the pressure between the positioning plate and the battery is large, and the fixing force for the battery is too strong, when the pressure sensor detects that the pressure value between the two is higher than the rated range, a feedback signal is given to the electric push rod controller to control the electric push rod to work, drive the positioning plate to move, and apply appropriate clamping force to the battery.

[0019] Preferably, a slide groove is horizontally provided on the inner side of the core box, the slide groove opening faces the vertical positioning plate, the left and right ends of the vertical positioning plate are fixedly connected to the connecting rod, the other end of the connecting rod is fixedly connected to the slider, and the slider is slidably connected to the slide groove.

[0020] By adopting the above technical solution, the slider and the slide groove can not only realize the relative sliding between the vertical positioning plate and the core box, but also has the advantages of simple structure, stable and reliable operation, and low cost.

[0021] Preferably, a plurality of reinforcing ribs are provided on the outer surface of the core box, and the reinforcing ribs are parallel and fixedly connected to the outer surface of the core box.

[0022] By adopting the above technical solution, the reinforcing ribs play a role in strengthening the core box. When the electric vehicle is accidentally hit, the core box is not easily deformed, thereby protecting the battery inside it from being squeezed and deformed, avoiding the danger of fire and explosion due to battery deformation.

[0023] Preferably, the top end of the vertical reinforcing rib is flush with the upper edge of the core box and a threaded hole is formed on the upper surface of the reinforcing rib.

[0024] By adopting the above technical solution, the pressure strip is screwed into the threaded hole by a bolt and is then fixedly connected to the core box, thereby better achieving the purpose of fixing the battery.

[0025] The electric vehicle described in the present invention comprises a vehicle body, a battery body and a battery box. The battery body is placed in the battery box. The battery box is detachably fixed on the vehicle body. The battery box is the above-mentioned battery box.

[0026] By adopting the above technical solution, the electric vehicle battery is fixed by the battery box, which effectively prevents the battery from being damaged due to vibration and is conducive to extending the battery life.

[0027] The utility model has the following beneficial effects: the outer box and the core box are connected by a damping rod, which avoids the rigid impact between the two caused by vibration. The universally hinged damping rod can play a shock-absorbing role for vibrations from all directions, so the battery box has high shock-absorbing performance. The connecting ear has a simple structure and a reliable connection, and the battery box can be conveniently fixed to the frame. A sealing strip is provided between the box cover and the outer box to keep the inside of the battery box dry. Even if the electric vehicle wades through water, the batteries inside the battery box will not be short-circuited due to water ingress, causing battery damage or even danger. The vertical positioning plate and the horizontal positioning plate slide in the front-back, left-right, or up-down directions under the action of the electric push rod, and batteries of various sizes can be fixed in the core box, thereby improving the versatility of the device. When the battery is installed in the battery compartment, if the pressure between the positioning plate and the battery is low, resulting in insufficient clamping force, pressure sensors 1 and 2 detect that the pressure between them is below the rated range. Alternatively, if the pressure between the positioning plate and the battery is high, resulting in excessive clamping force, the pressure sensors detect that the pressure between them is above the rated range. Feedback signals are sent to the electric actuator controller, controlling the actuator to move the positioning plate, thereby applying an appropriate clamping force to the battery. The slider and the chute not only allow for relative sliding of the vertical positioning plate relative to the core box, but also offer advantages such as a simple structure, stable and reliable operation, and low cost. The reinforcing ribs provide additional strength to the core box, preventing deformation in the event of an electric vehicle collision, thereby protecting the batteries within from compression and deformation, and preventing fire and explosion hazards caused by battery deformation. The pressure strips are screwed into the threaded holes to securely connect to the core box, effectively securing the battery. This securement of the electric vehicle battery in the battery compartment effectively prevents vibration damage and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the battery box;

[0030] Figure 2 This is a schematic diagram of the internal structure when the battery is fixed in the battery box;

[0031] Figure 3 This is a schematic diagram of the internal structure when no battery is placed in the battery box;

[0032] Figure 4 This is a schematic diagram of the internal structure of the battery box with the pressure strip removed;

[0033] Figure 5 This is a full cutaway view of the battery box;

[0034] Figure 6It is a schematic diagram of the overall three-dimensional structure of the electric vehicle;

[0035] Figure 7 yes Figure 2 Enlarged view of point A in the middle;

[0036] Figure 8 yes Figure 1 Enlarged view of point B in the middle.

[0037] Explanation of the accompanying drawings: 1. Battery; 2. Outer box; 201. Sealing strip; 202. Threading hole; 3. Core box; 301. Slide groove; 302. Reinforcing rib; 4. Damping rod; 5. Connecting ear; 6. Frame; 7. Box cover; 8. Vertical positioning plate; 801. Connecting rod; 802. Slider; 9. Horizontal positioning plate; 10. Electric push rod; 11. Pressure strip. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below with reference to the accompanying drawings, wherein identical components are denoted by identical reference numerals.

[0039] A battery box, such as Figure 1-5 and Figure 7-8 As shown, it includes: an outer box 2, a core box 3 and a damping rod 4; a battery 1 that provides electrical energy for the electric vehicle is fixedly placed inside the core box 3, the outer box 2 is sleeved on the outside of the core box 3 without contact between the two, and multiple damping rods 4 are arranged between the outer box 2 and the core box 3. The two ends of the damping rod 4 are universally hinged to the inner surface of the outer box 2 and the outer surface of the core box 3 respectively. The core box 3 is provided with an interface for docking with the battery 1, the core box 3 is provided with an interface for docking with the outer box 2, and the outer box 2 is provided with an interface for docking with the vehicle body. The interface of the core box 3 and the interface of the outer box 2 are connected by wires.

[0040] A plurality of connecting ears 5 are provided on the outer edge of the outer box 2 , and the outer box 2 is fixedly connected to the electric vehicle frame 6 via the connecting ears 5 .

[0041] The battery box 1 also includes a box cover 7, which is detachably fixed to the top of the outer box 2. The shape and size of the box cover 7 are adapted to the outer box 2. A sealing strip 201 is provided on the top of the outer box 2.

[0042] A plurality of vertical positioning plates 8 are arranged inside the core box 3. The vertical positioning plates 8 are arranged vertically and are slidably connected to the inner surface of the core box 3. An electric push rod 10 is arranged between the vertical positioning plates 8 and the core box 3. The two ends of the electric push rod 10 are respectively vertically fixedly connected between the vertical positioning plates 8 and the inner surface of the core box 3.

[0043] A horizontal positioning plate 9 and a pressure strip 11 are horizontally arranged inside the core box 3. The horizontal positioning plate 9 is slidably connected to the inner surface of the core box 3. An electric push rod 10 is arranged between the horizontal positioning plate 9 and the core box 3. The two ends of the electric push rod 10 are respectively vertically fixedly connected between the horizontal positioning plate 9 and the inner surface of the core box 3. The pressure strip 11 is detachably fixedly connected to the upper surface of the core box 3.

[0044] A first pressure sensor is provided between the vertical positioning plate 8 and the battery 1 , and a second pressure sensor is provided between the horizontal positioning plate 9 and the battery 1 .

[0045] A slide groove 301 is horizontally provided on the inner side of the core box 3 , and the slide groove 301 opens toward the vertical positioning plate 8 . The left and right ends of the vertical positioning plate 8 are fixedly connected to connecting rods 801 , and the other end of the connecting rod 801 is fixedly connected to a slider 802 , which is slidably connected to the slide groove 301 .

[0046] A plurality of reinforcing ribs 302 are provided on the outer surface of the core box 3 , and the reinforcing ribs 302 are parallel and fixedly connected to the outer surface of the core box 3 .

[0047] The top of the vertical reinforcing rib 302 is flush with the upper edge of the core box 3 and a threaded hole is formed on the upper surface of the reinforcing rib 302 .

[0048] The outer box 2 and the core box 3 are connected by a damping rod 4, which avoids the rigid impact between the two caused by vibration. The universally hinged damping rod 4 can play a shock-absorbing role against vibrations from all directions, so the battery 1 box has high shock-absorbing performance. The connecting ear 5 has a simple structure and reliable connection, and can conveniently fix the battery 1 box to the frame 6. A sealing strip 201 is provided between the box cover 7 and the outer box 2 to keep the inside of the battery 1 box dry. Even if the electric vehicle wades through water, the battery 1 inside the battery 1 box will not be short-circuited due to water ingress, causing damage to the battery 1 or even danger. The vertical positioning plate 8 and the horizontal positioning plate 9 slide in the front-to-back, left-to-right, or up-down directions under the action of the electric push rod 10, and batteries 1 of various sizes can be fixed in the core box 3, thereby improving the versatility of the device. When battery 1 is installed in the battery box, the pressure between the positioning plate and battery 1 is low, resulting in insufficient clamping force for battery 1. Pressure sensors 1 and 2 detect that the pressure between them is below the rated range. Alternatively, when the pressure between the positioning plate and battery 1 is high, resulting in excessive clamping force for battery 1, the pressure sensors detect that the pressure between them is above the rated range. Feedback signals are sent to the controller of the electric push rod 10, controlling the operation of the electric push rod 10, driving the positioning plate to move, thereby applying an appropriate clamping force to battery 1. The slider 802 and the chute 301 not only allow for relative sliding of the vertical positioning plate 8 relative to the core box 3, but also offer advantages such as a simple structure, stable and reliable operation, and low cost. The reinforcing ribs 302 provide additional reinforcement for the core box 3. When the electric vehicle is accidentally impacted, the core box 3 is less likely to deform, thereby protecting the battery 1 within from compression and deformation, thereby preventing fire and explosion hazards caused by battery 1 deformation. The pressure strip 11 is screwed into the threaded hole and fixedly connected to the core box 3, thereby better securing the battery 1. The electric vehicle battery 1 is fixed by the battery box 1, which effectively prevents the battery 1 from being damaged due to vibration and is conducive to extending the service life of the battery 1.

[0049] The electric vehicle described in the utility model is as follows Figure 6 As shown, the battery of the electric vehicle is fixed by the battery box.

[0050] The electric vehicle battery is fixed by the battery box, which effectively prevents the battery from being damaged due to vibration and helps to extend the battery life.

[0051] When the battery box is vibrated, the damping rod 4 between the core box 3 and the outer box 2 absorbs the vibration to prevent the core box 3 and the battery 1 inside it from being impacted by the vibration. The positioning plate fixes the battery 1. When the battery 1 is installed in the battery box, the pressure between the positioning plate and the battery 1 is small. When the fixing force for the battery 1 is insufficient, the pressure sensor 1 and the pressure sensor 2 detect that the pressure value between the two is lower than the rated range; or when the pressure between the positioning plate and the battery 1 is large, the fixing force for the battery 1 is too strong. When the pressure sensor 1 and the pressure sensor 2 detect that the pressure value between the two is higher than the rated range, the feedback signal is given to the electric push rod 10 controller and the electric push rod 10 is controlled to work, driving the positioning plate to move so that it applies a suitable clamping force to the battery 1.

[0052] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention.

Claims

1. A battery box, characterized in that: include: An outer box (2), a core box (3) and a damping rod (4); a battery (1) for providing electric energy for an electric vehicle is fixedly placed inside the core box (3); the outer box (2) is sleeved outside the core box (3) and the two are not in contact; a plurality of damping rods (4) are arranged between the outer box (2) and the core box (3); two ends of the damping rods (4) are universally hinged to the inner surface of the outer box (2) and the outer surface of the core box (3); an interface for docking with the battery (1) is provided on the core box (3); an interface for docking with the outer box (2) is provided on the core box (3); an interface for docking with the vehicle body is provided on the outer box (2); and an electric wire is connected between the interface of the core box (3) and the interface of the outer box (2).

2. A battery box according to claim 1, characterized in that: A plurality of connecting ears (5) are provided on the outer edge of the outer box (2), and the outer box (2) is fixedly connected to the electric vehicle frame (6) via the connecting ears (5).

3. The battery box according to claim 1, wherein: The battery (1) box also includes a box cover (7), which is detachably fixedly connected to the top of the outer box (2). The shape and size of the box cover (7) are compatible with the outer box (2), and a sealing strip (201) is provided at the top of the outer box (2).

4. The battery box according to claim 1, wherein: A plurality of vertical positioning plates (8) are arranged inside the core box (3), the vertical positioning plates (8) are arranged vertically and are slidably connected to the inner surface of the core box (3), an electric push rod (10) is arranged between the vertical positioning plates (8) and the core box (3), and both ends of the electric push rod (10) are respectively vertically fixedly connected between the vertical positioning plates (8) and the inner surface of the core box (3).

5. A battery box according to claim 4, characterized in that: A horizontal positioning plate (9) and a pressure strip (11) are horizontally arranged inside the core box (3); the horizontal positioning plate (9) is slidably connected to the inner surface of the core box (3); an electric push rod (10) is arranged between the horizontal positioning plate (9) and the core box (3); two ends of the electric push rod (10) are respectively vertically fixedly connected between the horizontal positioning plate (9) and the inner surface of the core box (3); and the pressure strip (11) is detachably fixedly connected to the upper surface of the core box (3).

6. A battery box according to claim 5, characterized in that: A first pressure sensor is provided between the vertical positioning plate (8) and the battery (1), and a second pressure sensor is provided between the horizontal positioning plate (9) and the battery (1).

7. A battery box according to claim 4, characterized in that: A chute (301) is horizontally provided on the inner side of the core box (3), the chute (301) opening faces the vertical positioning plate (8), the left and right ends of the vertical positioning plate (8) are fixedly connected to connecting rods (801), the other end of the connecting rod (801) is fixedly connected to a slider (802), and the slider (802) is slidably connected to the chute (301).

8. The battery box according to claim 1, characterized in that: A plurality of reinforcing ribs (302) are provided on the outer surface of the core box (3), and the reinforcing ribs (302) are parallel and fixedly connected to the outer surface of the core box (3).

9. A battery box according to claim 8, characterized in that: The top end of the vertical reinforcing rib (302) is flush with the upper edge of the core box (3), and a threaded hole is formed on the upper surface of the reinforcing rib (302).

10. An electric vehicle, characterized in that: include, A vehicle body, a battery (1) body and a battery box, wherein the battery (1) body is placed in the battery box, and the battery box is detachably fixed on the vehicle body, characterized in that the battery box is the battery box according to any one of claims 1 to 9.

Images