Multi-chambered cushioning energy absorbing protective shell

Abstract

This utility model relates to the field of lithium battery protection technology and discloses a multi-chamber buffer energy-absorbing protective shell, including a base. An inner shell is fixedly connected to the top of the base via connecting columns. Two sets of sliding rods are symmetrically fixed to both sides of the inner shell via connecting seats. Protective outer shells are provided on the exterior of both sides of the inner shell, and these protective outer shells are slidably connected to the four sets of sliding rods simultaneously. Springs are sleeved on the exterior of each sliding rod. A heat dissipation vent is provided on the protective outer shell, and a filter screen is fixedly connected inside the heat dissipation vent. Two sliding rods are fixedly connected to both sides of the top of the base, and sliders are fixedly connected to both sides of the protective outer shell, with the sliders slidably connected to the sliding rods on the same side. This utility model effectively avoids the problem of difficulty in cleaning dust accumulation on the filter screen, which can affect the normal heat dissipation of the lithium battery.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery protection technology, and in particular to a multi-chamber buffer energy-absorbing protective shell. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Due to their high energy density, long cycle life, and environmentally friendly characteristics, lithium-ion batteries are widely used in consumer electronics, new energy vehicles, industrial equipment, energy storage systems, and specialized fields. Before being put into use, lithium-ion batteries are generally protected by a special outer casing.

[0003] Chinese utility model patent CN219937224U discloses an explosion-proof casing for a lithium battery. During use, a cooling fan accelerates airflow within the casing, thereby cooling the lithium battery. A filter prevents external dust from entering the device. Regarding the aforementioned technology, the inventors believe the following drawbacks exist:

[0004] In actual use, dust easily accumulates on the surface of the filter screen after long-term use. In addition, the device lacks an integrated structure to remove the dust, which makes the filter screen pores easily clogged by dust, thus affecting the normal heat dissipation of the lithium battery. To address this, we provide a multi-chamber buffer energy-absorbing protective shell. Utility Model Content

[0005] To address the problem in the background art where it is difficult to clean the dust accumulated on the filter screen, which affects the normal heat dissipation of the lithium battery, this utility model provides a multi-chamber buffer energy-absorbing protective shell.

[0006] This utility model is achieved using the following technical solution: a multi-chamber buffer energy-absorbing protective shell, including a base, the top of which is fixedly connected to an inner shell via a connecting column, two sets of sliding rods are symmetrically fixedly connected to both sides of the inner shell via connecting seats, a protective shell is provided on both sides of the inner shell and the protective shell is slidably connected to the four sets of sliding rods simultaneously, a spring is sleeved on the outside of the sliding rod, a heat dissipation vent is provided on the protective shell, a filter screen is fixedly connected inside the heat dissipation vent, two sliding rods are fixedly connected to both sides of the top of the base, and sliders are fixedly connected to both sides of the protective shell and the sliders are slidably connected to the two sliding rods on the same side.

[0007] As a further improvement to the above solution, a fixing frame is fixedly connected to the inner side of the protective shell, and an L-shaped movable rod is hinged to the fixing frame via a hinge. A striking ball is fixedly connected to the L-shaped movable rod and the striking ball is in contact with the center of the filter screen on the same side. Two sets of connecting plates are symmetrically fixedly connected to the inner shell, and a stop bar is fixedly connected to the connecting plate and the stop bar is in contact with the movable rod on the same side.

[0008] As a further improvement to the above solution, both the inner shell and the outer shell are made of plastic.

[0009] As a further improvement to the above solution, a sealing element is added to the movable connection between the protective outer shell and the inner shell.

[0010] As a further improvement to the above solution, the top of the inner shell is provided with a pick-up and put-out opening, and a sealing protective cover is rotatably connected inside the pick-up and put-out opening.

[0011] As a further improvement to the above solution, the two ends of the spring are fixedly connected to the connecting seat and the protective shell, respectively.

[0012] As a further improvement to the above solution, the end of the stop bar is designed with an arc shape.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes the sliding engagement between the slide rod and the protective shell to allow the protective shell to automatically slide and stretch the spring after being impacted. The elasticity of the spring provides a certain buffering effect to protect the lithium battery. After the impact ends, the spring's own rebound action allows the protective shell to automatically and quickly reset. The vibration generated during the reset process shakes off the dust on the filter screen, thereby achieving the purpose of automatically cleaning the filter screen and preventing the lithium battery's heat dissipation from being affected by filter screen blockage. It is highly practical.

[0015] 2. When the protective shell is impacted and moves, this invention can also move the striking ball on the movable rod. Since the movable rod is obstructed by the stop bar during movement, the hinge between the movable rod and the fixed frame causes the movable rod to deflect, thereby moving the striking ball away from the filter screen. When the protective shell automatically resets after the impact disappears, the striking ball is automatically reset by gravity and impacts the stainless steel filter screen. The filter screen vibrates after being impacted, thereby improving the removal effect of adhering dust, ensuring the normal heat dissipation of the lithium battery, and further improving the practicality of the device. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the inner shell of this utility model;

[0018] Figure 3 This is a longitudinal section three-dimensional structural diagram of the protective shell of this utility model.

[0019] Explanation of key symbols:

[0020] 1. Base; 2. Inner shell holder; 3. Slide rod one; 4. Protective outer shell; 5. Spring; 6. Filter screen; 7. Slide rod two; 8. Slider; 9. Sealing protective cover; 101. Fixing frame; 102. Movable rod; 103. Striking ball; 104. Connecting plate; 105. Stop bar. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example 1

[0022] Please combine Figure 1-3 This embodiment of a multi-chamber buffer energy-absorbing protective shell includes a base 1. The top of the base 1 is fixedly connected to an inner shell 2 via a connecting column. Two sets of sliding rods 3 are symmetrically fixedly connected to both sides of the inner shell 2 via connecting seats. Protective shells 4 are provided on the outside of both sides of the inner shell 2, and the protective shells 4 are slidably connected to the four sets of sliding rods 3 simultaneously. Springs 5 ​​are sleeved on the outside of the sliding rods 3, and the two ends of the springs 5 ​​are fixedly connected to the connecting seats and the protective shells 4 respectively. Heat dissipation vents are provided on the protective shells 4, and filters 6 are fixedly connected inside the heat dissipation vents. Sliding rods 7 are fixedly connected to both sides of the top of the base 1, and sliders 8 are fixedly connected to both sides of the protective shells 4, and sliders 8 are slidably connected to the sliding rods 7 on the same side. The inner shell 2 and the protective shells 4 are both made of plastic material, which is not only lightweight but also high-strength, wear-resistant and corrosion-resistant, and can provide good protection for lithium batteries. The top of the inner shell 2 has a pick-and-place opening, and a sealing protective cover 9 is rotatably connected inside the pick-and-place opening to facilitate the pick-and-place of lithium batteries.

[0023] A fixing frame 101 is fixedly connected to the inner side of the protective shell 4. An L-shaped movable rod 102 is hinged to the fixing frame 101 via a hinge. A striking ball 103 is fixedly connected to the L-shaped movable rod 102 and the striking ball 103 is in contact with the center of the filter screen 6 on the same side. Two sets of connecting plates 104 are symmetrically fixedly connected to the inner shell 2. A stop bar 105 is fixedly connected to the connecting plate 104 and the stop bar 105 is in contact with the movable rod 102 on the same side. The end of the stop bar 105 has an arc-shaped structure design.

[0024] The implementation principle of the multi-chamber buffer energy-absorbing protective shell in this application embodiment is as follows: During use, two sets of protective shells 4 are pulled to both sides simultaneously, fully exposing the sealing protective cover 9 on the inner shell 2. Opening the sealing protective cover 9 allows the lithium battery to be placed in the inner shell 2. After fixing the lithium battery in the inner shell 2, the sealing protective cover 9 is closed and the two sets of protective shells 4 are released, thus protecting the lithium battery. The heat dissipation vents allow the heat emitted by the lithium battery to be discharged to the outside, and the filter 6 prevents external dust from entering. Through the sliding cooperation between the slider 3 and the protective shell 4, the protective shell 4 automatically slides and stretches the spring 5 after being impacted. The elasticity of the spring 5 provides a certain buffering effect to protect the lithium battery. Furthermore, after the impact, the spring 5's own rebound action allows the protective shell 4 to automatically and quickly reset. During the reset process, [the following occurs]. The vibration can shake off the dust on the filter screen 6, thereby achieving the purpose of automatically cleaning the filter screen 6 and avoiding the impact of the filter screen 6 clogging on the heat dissipation of the lithium battery. At the same time, when the protective shell 4 is impacted and moves, it can also drive the striking ball 103 on the movable rod 102 to move together. Since the movable rod 102 is obstructed by the stop rod 105 when it moves, the hinge between the movable rod 102 and the fixed frame 101 is used to make the movable rod 102 deflect, thereby driving the striking ball 103 away from the filter screen 6. When the protective shell 4 automatically resets after the impact disappears, the striking ball 103 is automatically reset by the gravity and hits the stainless steel filter screen 6. Since the stainless steel filter screen 6 has strong elasticity, the filter screen 6 will vibrate after being hit, thereby improving the removal effect of the attached dust and ensuring the normal heat dissipation of the lithium battery. Example 2

[0025] Based on Embodiment 1, this embodiment is further improved by adding a sealing element to the movable connection between the protective outer shell 4 and the inner shell 2, which can prevent dust and external moisture from entering the device through gaps.

[0026] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A multi-chamber buffer energy-absorbing protective shell, characterized in that, The device includes a base (1), the top of which is fixedly connected to an inner shell (2) via a connecting column. Two sets of sliding rods (3) are symmetrically fixedly connected to both sides of the inner shell (2) via connecting seats. A protective shell (4) is provided on both sides of the inner shell (2), and the protective shell (4) is slidably connected to the four sets of sliding rods (3) simultaneously. A spring (5) is sleeved on the outside of the sliding rod (3). A heat dissipation vent is provided on the protective shell (4), and a filter screen (6) is fixedly connected inside the heat dissipation vent. Two sliding rods (7) are fixedly connected to both sides of the top of the base (1). A slider (8) is fixedly connected to both sides of the protective shell (4), and the slider (8) is slidably connected to the two sliding rods (7) on the same side.

2. The multi-chamber buffer energy-absorbing protective shell as described in claim 1, characterized in that, A fixing frame (101) is fixedly connected to the inner side of the protective shell (4). An L-shaped movable rod (102) is hinged to the fixing frame (101) via a hinge. A striking ball (103) is fixedly connected to the L-shaped movable rod (102) and the striking ball (103) is in contact with the center of the filter screen (6) on the same side. Two sets of connecting plates (104) are symmetrically fixedly connected to the inner shell (2). A stop bar (105) is fixedly connected to the connecting plate (104) and the stop bar (105) is in contact with the movable rod (102) on the same side.

3. The multi-chamber buffer energy-absorbing protective shell as described in claim 1, characterized in that, Both the inner shell (2) and the outer shell (4) are made of plastic.

4. The multi-chamber buffer energy-absorbing protective shell as described in claim 1, characterized in that, A sealing element is provided at the movable connection between the protective outer shell (4) and the inner shell (2).

5. The multi-chamber buffer energy-absorbing protective shell as described in claim 1, characterized in that, The top of the inner shell (2) is provided with a pick-up and put-out opening, and a sealing protective cover (9) is rotatably connected inside the pick-up and put-out opening.

6. The multi-chamber buffer energy-absorbing protective shell as described in claim 1, characterized in that, The two ends of the spring (5) are fixedly connected to the connecting seat and the protective shell (4), respectively.

7. A multi-chamber buffer energy-absorbing protective shell as described in claim 2, characterized in that, The end of the stop bar (105) is designed with an arc shape.

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