Novel gas injection device

Abstract

The invention provides a novel gas injection device which comprises a shell, two adjusting bolts are arranged at the top of one side of the shell, the adjusting bolts are in threaded connection with the shell, a transmission lead screw is rotationally connected between the two adjusting bolts, a second sliding rod is arranged between the two adjusting bolts, and the second sliding rod is in threaded connection with the shell. The transmission lead screw is located over the second sliding rod. Opening and closing of a gas bin can be controlled through a fitting plate arranged in the gas introduction structure, a connecting pipe is pressed when being fitted with a gas inlet and a gas outlet of a battery, so that the connecting pipe pushes the fitting plate to move towards one side, a gap is formed between the fitting plate and the gas bin, gas can enter and be discharged out of the battery, and the safety of the battery is improved. After gas injection is completed, the spring is adjusted to push the attaching plate to be attached to the gas bin so that the gas injection device can be sealed.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to a novel gas injection device. Background Art

[0002] Pure electric vehicles are one of the main types of new energy vehicles. The battery is the main driving energy source. In order to protect the battery, another layer of battery protection cover is provided on the outside of the battery. After the battery and the battery cover are assembled, the internal space will contain air. Therefore, in some assembled batteries, nitrogen is injected into the battery cover through a gas injection device to expel the internal oxygen.

[0003] However, when nitrogen is injected into the battery cover by the gas injection device, after the injection of nitrogen into the battery is stopped, the pressure inside the battery cover is lower than the pressure in the pipeline, which will still cause a small amount of oxygen to flow back into the battery cover. Summary of the invention

[0004] Purpose of the invention

[0005] In view of the above technical problems, the present invention provides a gas injection device for a battery cover to solve the technical problems mentioned in the background technology.

[0006] Technical Solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is a novel gas injection device, comprising a shell, an adjusting bolt is arranged on the top of one side of the shell, the adjusting bolt is threadedly connected to the shell, the number of the adjusting bolts is set to two, a transmission screw is rotatably connected between the two adjusting bolts, a second sliding rod is arranged between the two adjusting bolts, and the transmission screw is located directly above the second sliding rod;

[0008] A gas introduction structure includes a slider, a gas bin is provided on one side of the slider, a connecting pipe is slidably connected to the inside of one side of the gas bin, an air inlet groove is opened inside the connecting pipe, a fitting plate is provided on one side of the connecting pipe, the fitting plate is arranged inside the gas bin, and an adjustment spring is provided between the connecting pipe and the gas bin.

[0009] Preferably, a belt transmission device is provided inside the shell, a reinforcing rib is provided on the top of the conveyor belt in the belt transmission device, and a shock-absorbing pad is provided on one side of the shell.

[0010] Preferably, the shock-absorbing pads are arranged in two groups, a horizontal moving plate is arranged at one end of the shock-absorbing pads, and a return spring is arranged between the horizontal moving plate and the shell.

[0011] Preferably, a bracket is provided on one side of the shell, a bottom fixing groove is provided inside the bottom of the bracket, a first sliding rod is provided on the top of the bracket, and a lifting frame is slidably connected to the outer wall of the first sliding rod.

[0012] Preferably, a top fixing groove is opened in the middle of the lifting frame, and the top fixing groove is arranged directly above the bottom fixing groove. The top fixing groove and the bottom fixing groove are arranged to be half spherical, and a pressure display gauge is arranged on the top of the top fixing groove.

[0013] Preferably, the threads at both ends of the transmission screw have opposite rotation directions, a moving block is provided on the outer wall of the transmission screw, the through hole in the middle of the moving block cooperates with the transmission screw, the through hole at the bottom of the moving block is slidably connected to the second sliding rod, and one side of the moving block is rotatably connected to a rotating rod.

[0014] Preferably, the number of the rotating rods is set to two, a mounting plate is rotatably connected between the two rotating rods, a limiting groove is provided inside the mounting plate, and a sliding block is slidably connected inside the limiting groove.

[0015] Beneficial Effects

[0016] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] The present invention can control the opening and closing of the gas chamber by means of the bonding plate inside the gas introduction structure. When the connecting tube is bonded to the gas inlet and gas outlet of the battery cover and squeezed, the connecting tube pushes the bonding plate to move to one side, so that a gap appears between the bonding plate and the gas chamber, so that gas can enter and discharge the battery. After the gas injection is completed, the spring is adjusted to push the bonding plate to bond to the gas chamber to seal the gas injection device.

[0018] When the transmission screw rotates and drives the mounting plate to move outward, the mounting plate pushes one end of the battery to fit against one side of the horizontal moving plate to fix the battery, thereby preventing a gap from forming between the connecting tube and the air inlet and outlet of the battery when the gas injection device injects nitrogen into the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0021] Figure 3 It is a three-dimensional diagram of the transmission screw of the present invention;

[0022] Figure 4 It is a three-dimensional cross-sectional view of the gas introduction structure of the present invention.

[0023] Reference numerals

[0024] 1. Shell; 2. Belt transmission device; 3. Shock-absorbing pad; 4. Horizontal moving plate; 5. Reset spring; 6. Bracket; 7. Bottom fixing groove; 8. First slide bar; 9. Lifting frame; 10. Top fixing groove; 11. Pressure display gauge; 12. Adjusting bolt; 13. Transmission screw rod; 14. Second slide bar; 15. Moving block; 16. Rotating rod; 17. Mounting plate; 18. Limiting groove; 19. Gas introduction structure; 1901. Slider; 1902. Gas chamber; 1903. Connecting pipe; 1904. Inlet groove; 1905. Laminating plate; 1906. Adjusting spring. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front", "two ends", "both sides" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference is now made to the accompanying drawings, wherein the purpose of each illustration is only to show certain exemplary embodiments and is not intended to limit the present invention. In each of the drawings, the same reference numerals represent the same or corresponding parts. The dimensions and proportions in each of the drawings are also only for illustration and should not be interpreted as limiting the present invention, and these dimensions may be exaggerated relative to the actual product.

[0029] Reference Figure 1-Figure 4 , a novel gas injection device shown in the figure comprises a shell 1, an adjusting bolt 12 is arranged on the top of one side of the shell 1, the adjusting bolt 12 is threadedly connected to the shell 1, the number of the adjusting bolts 12 is set to two, a transmission screw 13 is rotatably connected between the two adjusting bolts 12, a second slide bar 14 is arranged between the two adjusting bolts 12, and the transmission screw 13 is located directly above the second slide bar 14;

[0030] The gas introduction structure 19 includes a slider 1901, a gas chamber 1902 is provided on one side of the slider 1901, a connecting pipe 1903 is slidably connected inside one side of the gas chamber 1902, an air inlet groove 1904 is opened inside the connecting pipe 1903, a bonding plate 1905 is provided on one side of the connecting pipe 1903, the bonding plate 1905 is arranged inside the gas chamber 1902, and an adjustment spring 1906 is provided between the connecting pipe 1903 and the gas chamber 1902.

[0031] Furthermore, in the above technical solution, a belt transmission device 2 is provided inside the shell 1, and a reinforcing rib is provided on the top of the conveyor belt in the belt transmission device 2. A shock-absorbing pad 3 is provided on one side of the shell 1, and the shock-absorbing pad 3 is provided in two groups. A horizontal moving plate 4 is provided at one end of the shock-absorbing pad 3, and a reset spring 5 is provided between the horizontal moving plate 4 and the shell 1. The battery is placed on the top of the belt transmission device 2, and then the belt transmission device 2 drives the battery to move to one side of the gas introduction structure 19, and is squeezed by the gas introduction structure 19, so that one end of the battery is in contact with one side of the horizontal moving plate 4 and squeezes the reset spring 5, so that the battery is stably fixed on the top of the belt transmission device 2.

[0032] Furthermore, in the above technical solution, a bracket 6 is provided on one side of the shell 1, a bottom fixing groove 7 is provided inside the bottom of the bracket 6, a first slide bar 8 is provided on the top of the bracket 6, a lifting frame 9 is slidably connected to the outer wall of the first slide bar 8, a top fixing groove 10 is provided in the middle of the lifting frame 9, the top fixing groove 10 is provided directly above the bottom fixing groove 7, the top fixing groove 10 and the bottom fixing groove 7 are set to half a sphere, a pressure display gauge 11 is provided on the top of the top fixing groove 10, a storage tank filled with nitrogen is loaded between the bottom fixing groove 7 and the top fixing groove 10, a spring is provided between the bracket 6 and the lifting frame 9, the spring pulls the lifting frame 9 to move downward, and the lifting frame 9 drives the top fixing groove 10 to fit with the top of the storage tank to fix the storage tank.

[0033] Furthermore, in the above technical scheme, the threads at both ends of the transmission screw 13 have opposite rotation directions, and a moving block 15 is provided on the outer wall of the transmission screw 13. The through hole in the middle of the moving block 15 cooperates with the transmission screw 13, and the through hole at the bottom of the moving block 15 is slidably connected to the second slide bar 14. A rotating rod 16 is rotatably connected to one side of the moving block 15, and the number of the rotating rods 16 is set to two. A mounting plate 17 is rotatably connected between the two rotating rods 16, and a limiting groove 18 is provided inside the mounting plate 17, and a slider 1901 is slidably connected inside the limiting groove 18. The motor drives the transmission screw 13 to rotate, and the transmission screw 13 drives the moving block 15 to move inward at the same time, and then the moving block 15 drives the mounting plate 17 to move horizontally outward through the rotating rod 16, and the mounting plate 17 drives the connecting pipe 1903 in the gas introduction structure 19 to align with the air inlet and outlet of the battery.

[0034] How this utility works:

[0035] Refer to the instruction manual Figure 1-Figure 4 First, when the oxygen inside the battery needs to be discharged through the gas injection device, the storage bottle filled with nitrogen is installed between the bottom fixing groove 7 and the top fixing groove 10, and then the spring pulls the top fixing groove 10 to move downward to fix the storage bottle, and then the pressure display gauge 11 is connected to the slider 1901 through the pipeline;

[0036] The battery with the battery cover installed on the new energy vehicle is placed on the top of the belt transmission device 2. The belt transmission device 2 drives the battery to move between the gas introduction structure 19 and the horizontal moving plate 4. The motor drives the transmission screw 13 to rotate, and the transmission screw 13 drives the moving block 15 to move inward. Then the moving block 15 pushes the mounting plate 17 to move horizontally to one side through the rotating rod 16, so that the mounting plate 17 drives the slider 1901 to move inward and fit the battery tightly, so that the outer wall of one side of the battery fits with the outer wall of the horizontal moving plate 4, and the connecting pipe 1903 in the slider 1901 is aligned with the air inlet and outlet of the battery, and the connecting pipe 1903 is squeezed by the air inlet and outlet of the battery, so that a gap appears between the fitting plate 1905 on one side of the connecting pipe 1903 and the gas chamber 1902, and at the same time, the air inlet groove 1904 enters the interior of the gas chamber 1902, so that nitrogen enters the interior of the battery and the oxygen inside the battery is discharged through another gas introduction structure 19.

[0037] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A novel gas injection device, characterized in that: include A housing (1), wherein an adjusting bolt (12) is arranged at the top of one side of the housing (1), wherein the adjusting bolt (12) is threadedly connected to the housing (1), wherein the number of the adjusting bolts (12) is set to two, wherein a transmission screw (13) is rotatably connected between the two adjusting bolts (12), wherein a second sliding rod (14) is arranged between the two adjusting bolts (12), and wherein the transmission screw (13) is located directly above the second sliding rod (14); A gas introduction structure (19) comprises a slider (1901), a gas chamber (1902) is arranged on one side of the slider (1901), a connecting pipe (1903) is slidably connected to the inside of one side of the gas chamber (1902), an air inlet groove (1904) is provided inside the connecting pipe (1903), a bonding plate (1905) is arranged on one side of the connecting pipe (1903), the bonding plate (1905) is arranged inside the gas chamber (1902), and an adjustment spring (1906) is arranged between the connecting pipe (1903) and the gas chamber (1902).

2. A novel gas injection device according to claim 1, characterized in that: A belt transmission device (2) is arranged inside the shell (1), a reinforcing rib is arranged on the top of the conveyor belt in the belt transmission device (2), and a shock-absorbing pad (3) is arranged on one side of the shell (1).

3. A novel gas injection device according to claim 2, characterized in that: The shock absorbing pads (3) are arranged in two groups, a horizontal moving plate (4) is arranged at one end of the shock absorbing pads (3), and a return spring (5) is arranged between the horizontal moving plate (4) and the housing (1).

4. A novel gas injection device according to claim 1, characterized in that: A bracket (6) is provided on one side of the shell (1), a bottom fixing groove (7) is provided inside the bottom of the bracket (6), a first sliding rod (8) is provided on the top of the bracket (6), and a lifting frame (9) is slidably connected to the outer wall of the first sliding rod (8).

5. A novel gas injection device according to claim 4, characterized in that: A top fixing groove (10) is provided in the middle of the lifting frame (9), and the top fixing groove (10) is arranged directly above the bottom fixing groove (7). The top fixing groove (10) and the bottom fixing groove (7) are arranged in a half spherical shape, and a pressure display gauge (11) is arranged at the top of the top fixing groove (10).

6. A novel gas injection device according to claim 1, characterized in that: The threads at both ends of the transmission screw (13) are in opposite directions, a moving block (15) is arranged on the outer wall of the transmission screw (13), a through hole in the middle of the moving block (15) cooperates with the transmission screw (13), a through hole at the bottom of the moving block (15) is slidably connected to the second sliding rod (14), and one side of the moving block (15) is rotatably connected to a rotating rod (16).

7. A novel gas injection device according to claim 6, characterized in that: The number of the rotating rods (16) is set to two, and a mounting plate (17) is rotatably connected between the two rotating rods (16). A limiting groove (18) is provided inside the mounting plate (17), and a slider (1901) is slidably connected inside the limiting groove (18).

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