Battery-powered negative pressure control valve

Abstract

This utility model discloses a battery formation negative pressure electrically controlled valve, which includes a mounting base, a control valve, and a geared motor. The mounting base has an internal receiving cavity, which is connected to a first air port and a second air port. The control valve includes a valve core and a valve body, which is installed in the receiving cavity. The valve body has an internal cavity, which is connected to a first air port and a second air port. The valve core is located within the cavity. The output shaft of the geared motor is connected to the valve core via a gear assembly containing multiple meshing gears, causing the valve core to rotate within the receiving cavity and thus block or open the second air port. This utility model's technical solution uses gear meshing to drive the valve core, reducing wear and improving the service life of the battery formation negative pressure electrically controlled valve.

Description

Technical Field

[0001] This utility model relates to the field of battery formation negative pressure control technology, and in particular to a battery formation negative pressure electronic control valve. Background Technology

[0002] From manufacturing to becoming a finished battery, lithium-ion batteries undergo a crucial activation process called formation. During formation, numerous chemical reactions produce electrolyte. It is essential to promptly remove the electrolyte generated during this process. Currently, a negative pressure electronic control valve for battery formation is used, connected to the battery's filling port via a suction nozzle, to create or break the vacuum, thereby extracting or returning the electrolyte.

[0003] The existing battery-generated negative pressure solenoid valve structure involves a motor connected to the valve core via a coupling, driving the valve core to rotate and cover the valve body's air port, thereby regulating the gas flow. However, to ensure the overall sealing of the negative pressure system during operation, a large torque is required when installing the valve core, which is prone to locking. Furthermore, because the coupling is made of plastic, the motor driving the valve core through the coupling easily causes wear on the coupling, resulting in a short service life for the battery-generated negative pressure solenoid valve. Utility Model Content

[0004] The main purpose of this invention is to propose a battery-generated negative pressure solenoid valve, which aims to achieve gear meshing transmission of the valve core, reduce wear, and improve the service life of the battery-generated negative pressure solenoid valve.

[0005] To achieve the above objectives, the present invention proposes a battery formation negative pressure electrically controlled valve, comprising:

[0006] The mounting base has an internal cavity that is connected to a first air port and a second air port.

[0007] A control valve, comprising a valve core and a valve body, wherein the valve body is installed in a receiving cavity, and the interior of the valve body is provided with a cavity, the cavity being connected to a first air hole and a second air hole, the first air hole being connected to a first air port, the second air hole being connected to a second air port, and the valve core portion being disposed within the cavity;

[0008] A geared motor, the output shaft of which is connected to the valve core via a gear assembly comprising multiple meshing gears, thereby causing the valve core to rotate within the receiving cavity and thus block or open the second air port.

[0009] Furthermore, the plurality of gear assemblies include a first rotating gear and a second rotating gear, the first rotating gear being connected to the output shaft of the geared motor, the first rotating gear meshing with the second rotating gear, and the second rotating gear being connected to the valve core.

[0010] Furthermore, the first rotating gear has a connecting hole, and the output shaft of the geared motor is connected to the connecting hole. The cross-sectional shape of both the connecting hole and the output shaft of the geared motor is a circle with a notch.

[0011] Furthermore, the side wall of the first rotating gear is provided with a set screw hole, through which the screw can pass and press against the output shaft of the geared motor.

[0012] Furthermore, the second rotating gear has a first toothed portion, and one end of the valve core has a second toothed portion, with the first toothed portion meshing with the second toothed portion.

[0013] Furthermore, the geared motor and the control valve are arranged side by side, and the first rotary gear and the second rotary gear are arranged side by side.

[0014] Furthermore, the mounting base is provided with a mounting groove, the geared motor is disposed in the mounting groove, and the mounting base is provided with a clamping plate at the mounting groove, the clamping plate being able to press the geared motor into the mounting groove.

[0015] Furthermore, the first rotating gear and the second rotating gear are made of stainless steel.

[0016] Furthermore, the mounting base is provided with mounting screw holes, which are used to screw the mounting base to the target position.

[0017] Furthermore, the valve core includes a valve core body and a rotating chuck. A base and a sealing gasket are also arranged from top to bottom in the cavity. A vent hole communicating with the second air port is opened on the base. The second rotating gear is connected to the valve core body. A locking post is provided on opposite sides of the valve core body. A locking groove is provided on opposite sides of the rotating chuck. The valve core body can extend into the locking groove through the locking post to drive the rotating chuck to rotate, so that the area of ​​the rotating chuck covering the vent hole is adjustable.

[0018] This utility model's technical solution uses a geared motor's output shaft to transmit power to the valve core via a gear assembly, enabling the valve core to cover or open the second air port, thereby achieving the opening and closing of the control air path. With this configuration, the battery-generated negative pressure solenoid valve has the following advantages: (1) The battery-generated negative pressure solenoid valve is integrated into a single structure, resulting in a compact structure and small footprint; (2) It has low cost and can replace two-way valves in some operating conditions; (3) It is easy to install, requires no special structure, and is simple to process without complex processing methods; (4) By replacing the traditional coupling transmission with gear transmission, the stable structure and long service life of the gear transmission reduce wear and improve the service life of the battery-generated negative pressure solenoid valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the battery-forming negative pressure electrically controlled valve of this utility model;

[0020] Figure 2 This is an exploded view of the battery-generated negative pressure electrically controlled valve of this utility model;

[0021] Figure 3 An exploded view of the battery-generated negative pressure electrically controlled valve of this utility model from another perspective;

[0022] Figure 4 This is an exploded view of the control valve in the battery-forming negative pressure electronic control valve of this utility model;

[0023] Figure 5 This is a cross-sectional view of the mounting base in the battery-forming negative pressure electrically controlled valve of this utility model.

[0024] Reference numerals: 100, Mounting base; 110, Receiving cavity; 120, First air port; 130, Second air port; 200, Control valve; 210, Valve core; 220, Valve body; 222, First air hole; 223, Second air hole; 300, Gear motor; 400, Gear assembly; 410, First rotating gear; 420, Second rotating gear; 411, Connecting hole; 412, Set screw hole; 421, First tooth; 422, Second tooth; 140, Mounting groove; 150, Pressure plate; 160, Mounting screw hole; 211, Valve core body; 212, Rotary chuck; 213, Base; 214, Sealing gasket; 215, Vent hole; 216, Locking post; 217, Locking groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 5 This utility model proposes a battery formation negative pressure solenoid valve, which is used in battery formation equipment.

[0027] The battery formation negative pressure electronic control valve includes a mounting base 100, a control valve 200, and a reduction motor 300. The mounting base 100 has a receiving cavity 110 inside, which is connected to a first air port 120 and a second air port 130. The control valve 200 includes a valve core 210 and a valve body 220. The valve body 220 is installed in the receiving cavity 110 and has a cavity inside, which is connected to a first air hole 222 and a second air hole 223. The first air hole 222 is connected to the first air port 120, and the second air hole 223 is connected to the second air port 130. The valve core 210 is partially located in the cavity. The output shaft of the reduction motor 300 is connected to the valve core 210 through a gear assembly 400 with multiple meshing gears, so that the valve core 210 rotates in the receiving cavity 110 to block or open the second air port 130.

[0028] Specifically, the first air port 120 can be used as an air inlet or an air outlet to connect to the external air path. Similarly, the second air port 130 can be used as an air inlet or an air outlet to connect to the external air path. Taking the first air port 120 as the air inlet and the second air port 130 as the air outlet as an example, the gas flow path is: first air port 120, receiving cavity 110, first air hole 222, second air hole 223, second air port 130. The gear assembly 400 can include multiple gears meshing for transmission. The number of gears can be two, three, four, etc. The output shaft of the geared motor 300 is transmitted to the valve core 210 through the gear assembly 400, so that the valve core 210 can cover or open the second air port 130, thereby realizing the opening and closing of the control air path. With this setting, the battery-powered negative pressure solenoid valve has the following advantages: (1) It is integrated into a single structure, with a compact structure and small space occupation; (2) It has low cost and can replace two-way valves in some working conditions. (3) Simple installation, no special structure, simple processing, no complicated processing method; (4) Replace the traditional coupling transmission method with gear transmission, and take advantage of the stable structure and long service life of gear transmission to reduce wear and improve the service life of battery-generated negative pressure solenoid valve.

[0029] Please see Figures 1 to 2 Furthermore, the multiple gear assemblies 400 include a first rotating gear 410 and a second rotating gear 420. The first rotating gear 410 is connected to the output shaft of the geared motor 300, and the first rotating gear 410 meshes with the second rotating gear 420. The second rotating gear 420 is connected to the valve core 210. Specifically, the geared motor 300 drives the first rotating gear 410 to rotate, the first rotating gear 410 drives the second rotating gear 420 to rotate, and the second rotating gear 420 drives the valve core 210 to rotate, thereby enabling the valve core 210 to cover or open the second air port 130.

[0030] Please see Figures 1 to 2Furthermore, the first rotating gear 410 has a connecting hole 411, and the output shaft of the reduction motor 300 is connected to the connecting hole 411. The cross-sectional shape of both the connecting hole 411 and the output shaft of the reduction motor 300 is a circle with a notch. Through the matching shape and structure of the connecting hole 411 and the output shaft of the reduction motor 300, it is ensured that the first rotating gear 410 and the output shaft of the reduction motor 300 will not deviate when the output shaft of the reduction motor 300 rotates, thereby improving the stability of the reduction motor 300 in transmitting power to the valve core 210.

[0031] Please see Figures 1 to 2 To enhance the stability of the connection between the output shaft of the geared motor 300 and the connection hole 411 of the first rotating gear 410, a set screw hole 412 is further provided on the side wall of the first rotating gear 410, allowing a screw to pass through the set screw hole 412 and press against the output shaft of the geared motor 300. Thus, with the connection hole 411 and the output shaft having a suitable shape and structure, the connection stability between the geared motor 300 and the first rotating gear 410 is further enhanced by pressing a screw through the set screw hole 412 against the output shaft of the geared motor 300.

[0032] Please see Figures 1 to 2 Furthermore, the second rotating gear 420 has a hollowed-out first tooth 421, and one end of the valve core 210 has a second tooth 422, with the first tooth 421 meshing with the second tooth 422. Thus, the reduction motor 300 drives the first rotating gear 410 to rotate, the first rotating gear 410 meshes with the second rotating gear 420, and the first rotating gear 410 drives the second rotating gear 420 to rotate, thereby enabling the second rotating gear 420 to drive the valve core 210 to rotate, thereby controlling the valve core 200 to cover or open the second air port 130.

[0033] Understandably, the existing battery-powered negative pressure electronic control valve has a bottom-up structure consisting of the control valve 200, coupling, and motor. This vertical installation results in an excessively large vertical space occupied by the overall structure. Please refer to [link / reference]. Figures 1 to 2 Furthermore, the geared motor 300 and the control valve 200 are arranged side by side, and the first rotating gear 410 and the second rotating gear 420 are arranged side by side. In this way, the geared motor 300 and the control valve 200 are arranged side by side through the first rotating gear 410 and the second rotating gear 420, which saves space in the vertical direction and makes the overall structure of the battery-powered negative pressure solenoid valve simpler.

[0034] Please see Figure 1 and Figure 5Furthermore, the mounting base 100 is provided with a mounting groove 140, in which the geared motor 300 is disposed. A clamping plate 150 is provided at the mounting groove 140, which presses the geared motor 300 into place within the groove. Specifically, the mounting groove 140 allows the geared motor 300 to be inserted, and the clamping plate 150 applies pressure to the geared motor 300 to ensure its stability when mounted on the mounting base 100.

[0035] Please see Figures 1 to 2 Furthermore, the first rotating gear 410 and the second rotating gear 420 are made of stainless steel. Thus, by using stainless steel for the first rotating gear 410 and the second rotating gear 420, the meshing stability of the first rotating gear 410 and the second rotating gear 420 is improved, thereby increasing the service life of the transmission structure of the first rotating gear 410 and the second rotating gear 420. When the battery formation negative pressure electrically controlled valve of this utility model is applied in battery formation equipment, the structure is made of electrolyte corrosion resistant material, the mounting base 100 is made of aluminum alloy, the valve core 210 is made of stainless steel, the clamping plate 150 is made of stainless steel, and the housing of the geared motor 300 is made of galvanized sheet.

[0036] Please see Figures 1 to 2 Furthermore, the mounting base 100 is provided with mounting screw holes 160 for screwing the mounting base 100 into the target position. Thus, a screw passing through the mounting screw holes 160 can install the mounting base 100 into the target position, which can be the target device.

[0037] Please see Figure 5 Furthermore, the valve core 210 includes a valve core body 211 and a rotating chuck 212. A base 213 and a sealing gasket 214 are also arranged from top to bottom in the cavity. A vent hole 215 communicating with the second air port 130 is opened on the base 213. The second rotating gear 420 is connected to the valve core body 211. A locking post 216 is provided on opposite sides of the valve core body 211. A locking groove 217 is provided on opposite sides of the rotating chuck 212. The valve core body 211 can extend into the locking groove 217 through the locking post 216 to drive the rotating chuck 212 to rotate, so that the area of ​​the rotating chuck 212 covering the vent hole 215 is adjustable. Specifically, the geared motor 300 drives the valve core body 211 through the first rotating gear 410 and the second rotating gear 420. The valve core body 211 drives the rotating chuck 212 to rotate by locking the insertion slot 217. The rotating chuck 212 can be adjusted by adjusting the area of ​​the two vent holes 215 on the cover chassis 213, thereby adjusting the air pressure.

[0038] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. All equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A battery formation negative pressure electrically controlled valve characterized by, The battery-generated negative pressure electrically controlled valve includes: The mounting base has an internal cavity that is connected to a first air port and a second air port. A control valve, comprising a valve core and a valve body, wherein the valve body is installed in a receiving cavity, and the interior of the valve body is provided with a cavity, the cavity being connected to a first air hole and a second air hole, the first air hole being connected to a first air port, the second air hole being connected to a second air port, and the valve core portion being disposed within the cavity; A geared motor, the output shaft of which is connected to the valve core via a gear assembly comprising multiple meshing gears, thereby causing the valve core to rotate within the receiving cavity and thus block or open the second air port.

2. The battery formation negative pressure electrically controlled valve of claim 1, wherein, The plurality of gear assemblies include a first rotating gear and a second rotating gear, the first rotating gear being connected to the output shaft of the geared motor, the first rotating gear meshing with the second rotating gear, and the second rotating gear being connected to the valve core.

3. The battery formation negative pressure electrically controlled valve of claim 2, wherein, The first rotating gear has a connecting hole, and the output shaft of the geared motor is connected to the connecting hole. The cross-sectional shape of both the connecting hole and the output shaft of the geared motor is a circle with a notch.

4. The battery formation negative pressure electrically controlled valve of claim 3, wherein, The first rotating gear has a set screw hole on its side wall, through which a screw can pass and press against the output shaft of the geared motor.

5. The battery formation negative pressure electrically controlled valve as described in claim 2, characterized in that, The second rotating gear has a first toothed section, and one end of the valve core has a second toothed section, with the first toothed section meshing with the second toothed section.

6. The battery formation negative pressure electrically controlled valve as described in claim 2, characterized in that, The geared motor and the control valve are arranged side by side, and the first rotary gear and the second rotary gear are arranged side by side.

7. The battery formation negative pressure electrically controlled valve as described in claim 2, characterized in that, The mounting base is provided with a mounting groove, the geared motor is located in the mounting groove, and the mounting base is provided with a clamping plate at the mounting groove, which can press the geared motor into the mounting groove.

8. The battery formation negative pressure electrically controlled valve as described in claim 2, characterized in that, The first rotating gear and the second rotating gear are made of stainless steel.

9. The battery formation negative pressure electrically controlled valve as described in claim 1, characterized in that, The mounting base has mounting screw holes for screwing the mounting base to the target position.

10. The battery formation negative pressure electrically controlled valve as described in claim 2, characterized in that, The valve core includes a valve core body and a rotating chuck. A base and a sealing gasket are also arranged from top to bottom in the cavity. The base has a vent hole that connects to the second air port. The second rotating gear is connected to the valve core body. The valve core body has locking pins on opposite sides, and the rotating chuck has locking slots on opposite sides. The valve core body can extend into the locking slots through the locking pins to drive the rotating chuck to rotate, so that the area of ​​the rotating chuck covering the vent hole is adjustable.

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