Pressure-adjustable breathable film blasting mechanism

Abstract

The utility model relates to the field of blasting mechanisms, in particular to a pressure-adjustable breathable film blasting mechanism which comprises a battery pack and an upper cover, a connecting frame is fixedly connected to the upper surface of the battery pack, two fixing grooves are formed in the connecting frame, and first springs are fixedly connected to the sides, close to each other, of the two fixing grooves; the upper cover is placed above the battery pack, then the upper cover is made to coincide with the battery pack, in the process, the baffles vertically slide down along the two sides of the battery pack, at the moment, the chamfered faces of the baffles and the corresponding insertion rods are squeezed to make the corresponding insertion rods enter the corresponding fixing grooves, and therefore the battery pack can be fixed. When the upper cover is installed and fixed, the first springs start to be compressed, and when the inserting grooves and the corresponding inserting rods are located on the same central axis, the first springs push the corresponding inserting rods to enter the inserting grooves under the action of resilience force of the first springs, so that the effect that the upper cover can be rapidly installed and fixed through inserting connection of the inserting rods and the inserting grooves is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting mechanisms, in particular to a breathable film blasting mechanism with adjustable pressure. Background Technique

[0002] At present, the structure of the product is that the breathable film is pressed by an ultrasonic ring and then ultrasonically welded. The welding is very firm and the breathable film cannot burst. If the breathable film cannot burst at the required pressure value, it will cause the entire battery pack to burst, resulting in serious safety risks.

[0003] At present, the industry generally uses hot melt welding or ultrasonic welding technology, and the blasting force is between 50 and 100 Kpa, which cannot meet the requirements of products with relatively small blasting force requirements.

[0004] In order to solve the problem that the upper cover cannot be quickly installed and fixed to the battery pack; the blasting problem of some products in new energy starting batteries with relatively small blasting force requirements; new innovations can enhance the company's competitiveness and promote the rapid development of the entire starting battery industry.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Content of the Utility Model

[0006] Aiming at the problem in the above background technique that the prior art cannot quickly install and fix the upper cover.

[0007] A breathable film blasting mechanism with adjustable pressure disclosed by the utility model includes a battery pack and an upper cover. A connecting frame is fixedly connected to the upper surface of the battery pack. Two fixing grooves are opened inside the connecting frame. First springs are fixedly connected to one side of the two fixing grooves close to each other. One end of each of the two first springs far away from each other is fixedly connected to an inserting rod. The outer surface of each inserting rod is slidably connected to the corresponding fixing groove. Two baffles are fixedly connected to the inner top wall of the upper cover. Slots are opened on the outer surface of each baffle. The inner wall of each slot is inserted with the corresponding inserting rod.

[0008] Further, two slot holes are opened on the upper surface of the upper cover. A push plate is slidably connected to the inner wall of each slot hole. A chute is opened inside each push plate.

[0009] Further, a U-shaped plug is slidably connected to the inner wall of each chute. A second spring is sleeved on the outer surface of each U-shaped plug.

[0010] Further, the top end of each second spring is fixedly connected to the corresponding push plate, and the other end is fixedly connected to the corresponding U-shaped plug. The outer surface of each push plate is slidably connected to the corresponding baffle.

[0011] Further, a blasting column is fixedly communicated with the upper surface of the upper cover, and an air-permeable membrane placement groove is formed in the inner wall of the blasting column.

[0012] Further, four connecting columns are fixedly communicated with the bottom surface of the upper cover, and a screw is inserted into the inner wall of each connecting column. The outer surface of each screw is threadedly connected to the battery pack.

[0013] Further, two first connecting plates are fixedly connected to the outer surface of the battery pack, and two second connecting plates are fixedly connected to the outer surface of the battery pack.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By providing components such as a connecting frame, a fixing groove, a first spring, a plug rod, a baffle, and a slot, the upper cover is placed above the battery pack and then made to coincide with the battery pack. During this process, the baffle slides vertically along both sides of the battery pack. At this time, the chamfered surface of the baffle squeezes the corresponding plug rod to make it enter the corresponding fixing groove, and the first spring starts to compress. When the slot and the corresponding plug rod are on the same central axis, the first spring will push the corresponding plug rod into the slot under the action of its resilience force, thereby achieving the effect that the device can quickly install and fix the upper cover through the insertion of the plug rod and the slot.

[0016] 2. By providing components such as an upper cover, a blasting column, and an air-permeable membrane placement groove, the air-permeable membrane with adhesive is directly pasted on the upper cover product. By controlling the pasting area and the pasting force, the blasting force can be effectively controlled. The selection of the adhesive type of the air-permeable membrane is very important and requires repeated verification through DOE to find a suitable type. The product has to go through strict high and low temperature cycling, aging experiments, and blasting tests. Only when all the final verifications are passed can the product be introduced for use, thereby achieving the effect that the device can meet the requirements of products with relatively small blasting force requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the connecting column of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the first spring of the present utility model;

[0021] Figure 4 Schematic diagram of the internal structure of the upper cover of the present utility model.

[0022] In the figure: 1. Battery pack; 2. Upper cover; 3. Connecting frame; 4. Fixed groove; 5. First spring; 6. Plug rod; 7. Baffle; 8. Slot; 9. Push plate; 10. Slide groove; 11. U-shaped plug-in; 12. Second spring; 13. First connecting plate; 14. Second connecting plate; 15. Blasting column; 16. Ventilation film placement groove; 17. Connecting column; 18. Screw. Specific embodiments

[0023] The following will disclose multiple embodiments of the present utility model in the form of diagrams. For the sake of clear description, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be illustrated in a simple schematic manner in the diagrams.

[0024] Please refer to Figure 1 , Figure 3 , Figure 4 , a ventilation film blasting mechanism with adjustable pressure of the present utility model, including a battery pack 1 and an upper cover 2. The size of the upper surface of the battery pack 1 is the same as that of the upper cover 2. When installing the upper cover 2, the battery pack 1 will perfectly coincide with the upper cover 2. A connecting frame 3 is fixedly connected to the upper surface of the battery pack 1. The connecting frame 3 is arranged at the center of the upper surface of the battery pack 1. Two fixed grooves 4 are opened inside the connecting frame 3. The two fixed grooves 4 are on the same central axis and are arranged on both sides of the connecting frame 3. A first spring 5 is fixedly connected to each side of the two fixed grooves 4 close to each other. One end of each of the two first springs 5 away from each other is fixedly connected to a plug rod 6. Specifically, by pushing the plug rod 6, the plug rod 6 will move horizontally along the corresponding fixed groove 4 towards the other plug rod 6. At this time, the first spring 5 will be compressed, and when there is no external force, the first spring 5 will push the corresponding plug rod 6 to reset under the action of its resilience force. Rounding is provided at one end of each of the two plug rods 6 away from each other.

[0025] In a preferred embodiment, the outer surface of each insertion rod 6 is slidably connected to the corresponding fixed groove 4. Two baffles 7 are fixedly connected to the inner top wall of the upper cover 2. The width of the baffle 7 is the same as that of the connecting frame 3. During the installation of the upper cover 2, the baffle 7 will slide vertically along the connecting frame 3. An inclined angle is formed at the bottom of each baffle 7. Through the setting of the inclined angle, the baffle 7 will squeeze the corresponding insertion rod 6 when moving vertically, and under the action of force decomposition, push the corresponding insertion rod 6 to move horizontally. A slot 8 is formed on the outer surface of each baffle 7, and the inner wall of each slot 8 is inserted into the corresponding insertion rod 6. Specifically, when the upper cover 2 is installed, when the insertion rod 6 and the corresponding slot 8 are on the same central axis, at this time, the first spring 5 will push the corresponding insertion rod 6 into the corresponding slot 8 under the action of its resilience force, so as to complete the quick fixation of the upper cover 2.

[0026] In this embodiment, two slot holes are formed on the upper surface of the upper cover 2. A push plate 9 is slidably connected to the inner wall of each slot hole. The push plate 9 can slide vertically along the corresponding slot hole. A sliding groove 10 is formed inside each push plate 9. The sliding groove 10 is arranged inside the push plate 9, and its arrangement direction is vertical.

[0027] In this embodiment, a U-shaped plug-in 11 is slidably connected to the inner wall of each sliding groove 10. When the installation of the upper cover 2 is completed, the U-shaped plug-in 11 will contact and squeeze the battery pack 1. A second spring 12 is sleeved on the outer surface of each U-shaped plug-in 11. Specifically, the second spring 12 is arranged on two vertical sliding rods of the U-shaped plug-in 11.

[0028] In this embodiment, the top end of each second spring 12 is fixedly connected to the corresponding push plate 9, and the other end is fixedly connected to the corresponding U-shaped plug-in 11. The outer surface of each push plate 9 is slidably connected to the corresponding baffle 7. Specifically, when the push plate 9 is pressed, the push plate 9 will squeeze the corresponding second spring 12 to compress it. At this time, the two sliding rods on the U-shaped plug-in 11 will slide vertically along the corresponding sliding groove 10. During this process, the push plate 9 will squeeze the insertion rod 6 with a rounded corner and make it enter the corresponding baffle 7. At this time, the upper cover 2 can be easily taken out. When the pressing force on the push plate 9 is released, the second spring 12 will push the corresponding push plate 9 to reset under the action of its resilience force.

[0029] In this embodiment, a blasting column 15 is fixedly communicated with the upper surface of the upper cover 2. An air-permeable membrane placement groove 16 is formed in the inner wall of the blasting column 15. Specifically, the air-permeable membrane with adhesive is directly pasted into the blasting column 15 on the upper cover 2 and placed in the air-permeable membrane placement groove 16. By controlling the pasting area and the pasting force, the blasting force can be effectively controlled.

[0030] Such as Figure 4As shown, four connecting columns 17 are fixedly connected to the bottom surface of the upper cover 2. A T-shaped groove is formed on the upper surface of the battery pack 1. During the installation of the upper cover 2, the connecting columns 17 will be inserted into the T-shaped groove of the battery pack 1. The connecting columns 17 are internally threaded columns, and a screw 18 is inserted into the inner wall of each connecting column 17. The outer surface of each screw 18 is threadedly connected to the battery pack 1. Specifically, after the installation of the upper cover 2 is completed, at this time, the screw 18 is taken and inserted into the corresponding connecting column 17, and then the screw 18 is rotated to connect it to the battery pack 1, so as to increase the connectivity between the upper cover 2 and the battery pack 1.

[0031] In this embodiment, two first connecting plates 13 are fixedly connected to the outer surface of the battery pack 1, and two second connecting plates 14 are fixedly connected to the outer surface of the battery pack 1. Specifically, through the settings of the first connecting plates 13 and the second connecting plates 14, it can be connected to other components by using bolts.

[0032] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An air-permeable membrane bursting mechanism with adjustable pressure, comprising a battery pack (1) and an upper cover (2), characterized in that: A connecting frame (3) is fixedly connected to the upper surface of the battery pack (1). Two fixing grooves (4) are formed inside the connecting frame (3). A first spring (5) is fixedly connected to one side of each of the two fixing grooves (4) close to each other. One end of each of the two first springs (5) far away from each other is fixedly connected to a plug rod (6). The outer surface of each plug rod (6) is slidably connected to the corresponding fixing groove (4). Two baffles (7) are fixedly connected to the inner top wall of the upper cover (2). A slot (8) is formed on the outer surface of each baffle (7). The inner wall of each slot (8) is inserted with the corresponding plug rod (6).

2. The bursting mechanism of the breathable film with adjustable pressure according to claim 1, characterized in that: Two slot holes are formed on the upper surface of the upper cover (2). A push plate (9) is slidably connected to the inner wall of each slot hole. A chute (10) is formed inside each push plate (9).

3. The air-permeable film bursting mechanism with adjustable pressure according to claim 2, characterized in that: A U-shaped plug-in part (11) is slidably connected to the inner wall of each chute (10). A second spring (12) is sleeved on the outer surface of each U-shaped plug-in part (11).

4. The bursting mechanism of the breathable film with adjustable pressure according to claim 3, characterized in that: The top end of each second spring (12) is fixedly connected to the corresponding push plate (9), and the other end is fixedly connected to the corresponding U-shaped plug-in part (11). The outer surface of each push plate (9) is slidably connected to the corresponding baffle (7).

5. The bursting mechanism of the breathable film with adjustable pressure according to claim 2, wherein: An explosion column (15) is fixedly communicated with the upper surface of the upper cover (2). An air-permeable membrane placement groove (16) is formed inside the explosion column (15).

6. The bursting mechanism of the breathable film with adjustable pressure according to claim 5, characterized in that: Four connecting columns (17) are fixedly communicated with the bottom surface of the upper cover (2). A screw (18) is inserted into the inner wall of each connecting column (17). The outer surface of each screw (18) is threadedly connected to the battery pack (1).

7. An air-permeable film bursting mechanism with adjustable pressure according to claim 1, characterized in that: Two first connecting plates (13) are fixedly connected to the outer surface of the battery pack (1). Two second connecting plates (14) are fixedly connected to the outer surface of the battery pack (1).

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