A large vacuum drying oven

Abstract

The present invention discloses a large vacuum drying oven, comprising a first box body, a first gate and a vacuum gate; a transmission assembly is arranged in the first box body; the transmission assembly comprises a transmission rod, the transmission rod is connected with a first magnetic fluid transmission shaft penetrating the first box body; the end of the magnetic fluid transmission shaft exposed outside the first box body is connected with a driving motor, and the driving motor is fixedly connected to the outside of the first box body. The magnetic fluid transmission shaft of the drying oven utilizes the characteristics of magnetism to realize mechanical transmission without direct contact, preventing the high temperature in the drying oven from being transmitted to the driving motor, and overcoming the problem that the driving motor of the traditional vacuum drying oven is in a high-temperature vacuum environment for a long time, causing malfunction or even damage, thereby ensuring the normal operation of the vacuum drying oven, reducing the maintenance times of the vacuum drying oven, and further improving the work efficiency of the production line.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production, and in particular to a large vacuum drying box. Background Art

[0002] During the production process of polymer lithium batteries, moisture in the air will inevitably enter the electrolyte of the lithium battery. The moisture content will affect the performance and life of the lithium battery. In addition, lithium batteries with high moisture content also have the safety hazard of explosion. Therefore, drying treatment is a very important link in the lithium battery production process.

[0003] In the prior art, in order to achieve rapid batch production, multiple lithium batteries are stacked on a corresponding transport vehicle, and then transported to a large vacuum box by the transport vehicle, and then heated at high temperature to achieve drying. The vacuum box is equipped with a drive motor for driving the transport vehicle forward. When the batteries in the vacuum box are gradually heated, the drive motor will inevitably be radiated to high temperatures; over time, the drive motor will malfunction or even be damaged due to being in a high-temperature vacuum environment for a long time, and thus cannot drive the transport vehicle to move in the drying box, thereby affecting the operation of the entire battery production line.

[0004] Therefore, finding a large vacuum drying oven that can overcome the above problems has become an important topic studied by personnel in the field of this technology. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a large vacuum drying box to address the shortcomings of the prior art, so as to solve the problem that the existing vacuum box adopts a design of placing a drive motor inside the box, so that the drive motor is in a high-temperature vacuum environment for a long time, thereby causing the motor to malfunction or even be damaged.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A large vacuum drying box comprises a first box body, and a first gate and a vacuum gate respectively connected to opposite sides of the first box body in an airtight manner;

[0008] A transport track is provided in the first box; the transport track comprises a first guide rail and a second guide rail fixedly connected to the first box, and a transmission assembly located between the first guide rail and the second guide rail;

[0009] The transmission assembly includes a transmission rod perpendicular to the first guide rail, and a first bearing, a driving wheel and a second bearing sequentially sleeved on the transmission rod; the first bearing and the second bearing are both fixedly connected to the inner wall of the first box body, and the driving wheel is fixedly connected to the transmission rod;

[0010] One end of the transmission rod away from the driving wheel is connected to a first magnetic fluid transmission shaft penetrating the first housing; one end of the magnetic fluid transmission shaft exposed outside the first housing is connected to a driving motor, and the driving motor is fixedly connected to the outside of the first housing.

[0011] Optionally, the vacuum gate includes a hollow vacuum door frame, and a door panel movably connected to the vacuum door frame; a ball screw perpendicular to the ground is connected to the top of the door panel, and an end of the ball screw away from the door panel is connected to a second magnetofluid transmission shaft that passes through the vacuum door frame, and an end of the second magnetofluid transmission shaft exposed outside the vacuum door frame is connected to a power motor.

[0012] Optionally, the side of the vacuum gate away from the first box is also airtightly connected to a second box, and the side of the second box away from the vacuum gate is airtightly connected to a second gate;

[0013] The first box body and the second box body are symmetrically arranged, and the second box body has the same structure as the first box body;

[0014] The first gate and the second gate are symmetrically arranged, and the second gate has the same structure as the first gate.

[0015] Optionally, the first box body is further provided with a power supply lifting mechanism located between the first guide rail and the second guide rail; the power supply lifting mechanism comprises two symmetrically arranged lifting supports and a linkage rod rotatably connected to the lifting supports; and the upper end of the lifting supports is movably connected to the transport vehicle power supply module;

[0016] The linkage rod sleeve is provided with a jacking gear, and the jacking gear is meshedly connected with a jacking rack; the upper end of the jacking rack is fixedly connected to the lower end surface of the transport vehicle power module;

[0017] One end of the linkage rod away from the lifting gear is connected to a third magnetic fluid transmission shaft penetrating the first housing, and one end of the third magnetic fluid transmission shaft exposed outside the first housing is connected to a crank;

[0018] One end of the crank away from the third magnetic fluid transmission shaft is connected to a power cylinder, and one end of the power cylinder away from the crank is movably connected to a cylinder limiter, and the cylinder limiter is installed on the outer side of the first box.

[0019] Optionally, the first gate includes a first door frame, and a first door panel movably connected to the first door frame; a linear cylinder perpendicular to the ground is also connected between the first door frame and the first door panel.

[0020] Optionally, a door panel locking structure is further connected to a side of the first door frame away from the first box body; the door panel locking structure includes four locking cylinders, and push rods of the locking cylinders are all facing the first door panel.

[0021] Optionally, the first box body is further provided with a plurality of vacuum perspective windows, each of the vacuum perspective windows is provided with a transport vehicle sensor, and the transport vehicle sensor is connected to the outer side of the first box body.

[0022] Optionally, the shape of the cross section of the first guide rail perpendicular to the length direction is an isosceles trapezoid, and the shape of the cross section of the second guide rail perpendicular to the length direction is a rectangle.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The invention provides a large vacuum drying box, which realizes the driving function of a transport vehicle in the drying box through the cooperation of a built-in driving component, a magnetic fluid transmission shaft, and an external driving motor; moreover, the magnetic fluid transmission shaft utilizes the characteristics of magnetism to realize mechanical transmission without direct contact, thereby preventing the high temperature in the drying box from being transmitted to the driving motor, and overcoming the problem that the driving motor of the traditional vacuum drying box is in a high-temperature vacuum environment for a long time, causing malfunction or even damage, thereby ensuring the normal operation of the vacuum drying box, reducing the maintenance times of the vacuum drying box, and further improving the work efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a structural schematic diagram of a large vacuum drying oven;

[0027] Figure 2 is a schematic diagram of the internal structure of the first box;

[0028] Figure 3 It is a structural schematic diagram of the power supply lifting mechanism;

[0029] Figure 4 A perspective view of the vacuum lock.

[0030] Illustrations: 10, first box; 11, first gate; 20, second box; 21, second gate; 30, vacuum gate; 101, first guide rail; 102, second guide rail; 103, transmission assembly; 104, first magnetic fluid transmission shaft; 105, drive motor; 106, power lifting mechanism; 107, transport vehicle power module; 108, third magnetic fluid transmission shaft; 109, crank; 110, power cylinder; 111, cylinder limiter; 112, vacuum perspective window; 113, transport Transport sensor; 301, vacuum door frame; 302, door panel; 303, ball screw; 304, second magnetofluid transmission shaft; 305, power motor; 1031, transmission rod; 1032, first bearing; 1033, driving wheel; 1034, second bearing; 1061, lifting support; 1062, linkage rod; 1063, lifting gear; 1064, lifting rack; 1101, first door frame; 1102, first door panel; 1103, linear cylinder; 1104, locking cylinder. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "long", "short", "inside" and "outside" and the like indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention, rather than indicating or implying that the device or component referred to must have this specific orientation or operate with a specific orientation structure, and should not be construed as a limitation of the present invention.

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] See also Figure 1 , the figure is a schematic diagram of the structure of a large vacuum drying oven provided in the present embodiment. Based on the perspective in the figure, the vacuum drying oven comprises: a first box body 10 with openings on two opposite sides, and a first gate 11 and a vacuum gate 30 respectively connected to the opposite sides of the first box body 10 in an airtight manner;

[0035] See also Figure 2, the figure is a schematic diagram of the internal structure of the first box body. As shown in the figure, a transport track is provided in the first box body 10; the transport track includes a first guide rail 101 and a second guide rail 102 fixedly connected to the first box body 10, and a transmission assembly 103 located between the first guide rail 101 and the second guide rail 102;

[0036] The transmission assembly 103 includes a transmission rod 1031 parallel to the ground and perpendicular to the first guide rail 101, and a first bearing 1032, a driving wheel 1033 and a second bearing 1034 sequentially sleeved on the transmission rod 1031; and the first bearing 1032 and the second bearing 1034 are both fixedly connected to the inner wall of the first box body 10, and the driving wheel 1033 is fixedly connected to the transmission rod 1031;

[0037] It should be noted that, under the support of the first bearing 1032 and the second bearing 1034, the transmission rod 1031 can drive the driving wheel 1033 to rotate; in actual application, a rack is provided at the bottom of the transport vehicle, and the driving wheel 1033 can be adapted to the rack, thereby driving the transport vehicle to move on the transport track;

[0038] One end of the transmission rod 1031 away from the driving wheel 1033 is connected to the first magnetic fluid transmission shaft 104 that passes through the first housing 10 ; the end of the magnetic fluid transmission shaft exposed outside the first housing 10 is connected to the driving motor 105 , and the driving motor 105 is fixedly connected to the outside of the first housing 10 .

[0039] It should be noted that the first magnetic fluid transmission shaft 104 utilizes its magnetic properties to enable the drive motor 105 outside the first box 10 to transmit torque to the transmission assembly 103 inside the first box 10 without direct contact, thereby driving the transport vehicle to move in the vacuum box.

[0040] The present embodiment provides a large vacuum drying oven, which realizes the driving function of the transport vehicle in the drying oven through the cooperation of the built-in driving component, the magnetic fluid transmission shaft, and the external driving motor 105; moreover, the magnetic fluid transmission shaft utilizes the magnetic characteristics to realize mechanical transmission without direct contact, thereby preventing the high temperature in the drying oven from being transmitted to the driving motor 105, and overcoming the problem that the driving motor 105 of the traditional vacuum drying oven is in a high-temperature vacuum environment for a long time, causing malfunction or even damage, thereby ensuring the normal operation of the vacuum drying oven, reducing the maintenance times of the vacuum drying oven, and further improving the work efficiency of the production line.

[0041] Furthermore, the first box body 10 is further provided with a power supply lifting mechanism 106 located between the first guide rail 101 and the second guide rail 102; see Figure 3 , the figure is a schematic diagram of the structure of the power supply lifting mechanism;

[0042] The power supply lifting mechanism 106 includes two symmetrically arranged lifting supports 1061 and a linkage rod 1062 rotatably connected to the lifting supports 1061; and the upper end of the lifting supports 1061 is movably connected to the transport vehicle power supply module 107;

[0043] In actual operation, a power interface will be provided at the bottom of the transport vehicle, and the transport vehicle power module 107 can be docked with the power interface to provide power for transportation, and then power the heating device on the transport vehicle to achieve the function of heating the lithium battery.

[0044] Specifically, the linkage rod 1062 is sleeved with a lifting gear 1063, and the lifting gear 1063 is meshedly connected with a lifting rack 1064; the upper end of the lifting rack 1064 is fixedly connected to the lower end surface of the transport vehicle power module 107;

[0045] One end of the linkage rod 1062 away from the lifting gear 1063 is connected to a third magnetic fluid transmission shaft 108 penetrating the first housing 10, and one end of the third magnetic fluid transmission shaft 108 exposed outside the first housing 10 is connected to a crank 109;

[0046] One end of the crank 109 away from the third magnetic fluid transmission shaft 108 is connected to a power cylinder 110 , and one end of the power cylinder 110 away from the crank 109 is movably connected to a cylinder limiter 111 , which is installed on the outer side of the first box body 10 .

[0047] In actual operation, the power cylinder 110 is driven by air pressure to drive the crank 109 to rotate. Under the transmission action of the third magnetofluid transmission shaft 108, the linkage rod 1062 and the lifting gear 1063 rotate at the same time, thereby realizing the lifting function of the transport vehicle power module 107 through the up and down movement of the lifting rack 1064, and then the transport vehicle power module 107 is docked or separated with the power interface of the transport vehicle.

[0048] For further information, see Figure 4 , which is a perspective view of the vacuum gate; the vacuum gate 30 includes a hollow vacuum door frame 301, and a door panel 302 movably connected to the vacuum door frame 301; a ball screw 303 perpendicular to the ground is connected to the top of the door panel 302, and the end of the ball screw 303 away from the door panel 302 is connected to a second magnetic fluid transmission shaft 304 that penetrates the vacuum door frame 301, and the end of the second magnetic fluid transmission shaft 304 exposed outside the vacuum door frame 301 is connected to a power motor 305.

[0049] It should be noted that the second magnetic fluid transmission shaft 304 utilizes its magnetic properties to enable the power motor 305 placed outside the vacuum door frame 301 to transmit torque to the ball screw 303 inside the vacuum door frame 301 without direct contact, thereby realizing the lifting function of the door panel 302.

[0050] Furthermore, the first gate 11 includes a first door frame 1101 and a first door panel 1102 movably connected to the first door frame 1101 ; a linear cylinder 1103 perpendicular to the ground is also connected between the first door frame 1101 and the first door panel 1102 .

[0051] It should be noted that the linear cylinder 1103 is driven by air pressure and can drive the first door panel 1102 to move up and down, thereby realizing the function of opening or closing the drying box door.

[0052] Furthermore, a door panel locking structure is connected to a side of the first door frame 1101 away from the first box body 10 ; the door panel locking structure includes four locking cylinders 1104 , and push rods of the locking cylinders 1104 are all facing the first door panel 1102 .

[0053] In actual operation, when the first door panel 1102 descends, the push rod of the locking cylinder 1104 will extend outward, pushing the first door panel 1102 toward the first box body 10, so that the first door panel 1102 fits tightly against the first box body 10; when the vacuum drying box completes the drying process of the lithium battery, the push rod of the locking cylinder 1104 will retract inward, and when the air pressure in the vacuum box returns to normal, the first gate 11 can be opened.

[0054] Further, such as Figure 1 As shown, the side of the vacuum gate 30 away from the first box body 10 is also airtightly connected to the second box body 20, and the side of the second box body 20 away from the vacuum gate 30 is airtightly connected to the second gate 21;

[0055] The first box body 10 and the second box body 20 are symmetrically arranged, and the second box body 20 has the same structure as the first box body 10 ; moreover, the first gate 11 and the second gate 21 are symmetrically arranged, and the second gate 21 has the same structure as the first gate 11 .

[0056] Specifically, the two boxes can respectively dry the lithium batteries on the two transport vehicles, which can further improve the working efficiency of the production line.

[0057] Furthermore, the first box body 10 is further provided with a plurality of vacuum perspective windows 112 , each of which is provided with a transport vehicle sensor 113 , and the transport vehicle sensor 113 is connected to the outer side of the first box body 10 .

[0058] Among them, the vacuum perspective window 112 is made of transparent glass, and the transport vehicle sensor 113 can sense the position of the transport vehicle through the vacuum perspective window 112. When the transport vehicle moves to the designated location, the transport vehicle sensor 113 will feedback information to the external control system, and the control system will send relevant instructions to the drying box to start drying the lithium batteries.

[0059] Furthermore, the shape of the cross section of the first guide rail 101 perpendicular to the length direction is an isosceles trapezoid, and the shape of the cross section of the second guide rail 102 perpendicular to the length direction is a rectangle.

[0060] It should be noted that the shapes of the first track and the second track can match the shapes of the wheels of the transport vehicle so as to cooperate in operation.

[0061] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large vacuum drying oven, characterized in that: It comprises a first box body, and a first gate and a vacuum gate respectively connected to opposite sides of the first box body in an airtight manner; A transport track is provided in the first box; the transport track comprises a first guide rail and a second guide rail fixedly connected to the first box, and a transmission assembly located between the first guide rail and the second guide rail; The transmission assembly includes a transmission rod perpendicular to the first guide rail, and a first bearing, a driving wheel and a second bearing sequentially sleeved on the transmission rod; the first bearing and the second bearing are both fixedly connected to the inner wall of the first box body, and the driving wheel is fixedly connected to the transmission rod; One end of the transmission rod away from the driving wheel is connected to a first magnetic fluid transmission shaft penetrating the first housing; one end of the magnetic fluid transmission shaft exposed outside the first housing is connected to a driving motor, and the driving motor is fixedly connected to the outside of the first housing; The first box body is also provided with a power supply lifting mechanism located between the first guide rail and the second guide rail; the power supply lifting mechanism includes two symmetrically arranged lifting supports and a linkage rod rotatably connected to the lifting supports; and the upper end of the lifting supports is movably connected to the transport vehicle power supply module; The linkage rod sleeve is provided with a jacking gear, and the jacking gear is meshedly connected with a jacking rack; the upper end of the jacking rack is fixedly connected to the lower end surface of the transport vehicle power module; One end of the linkage rod away from the lifting gear is connected to a third magnetic fluid transmission shaft penetrating the first housing, and one end of the third magnetic fluid transmission shaft exposed outside the first housing is connected to a crank; One end of the crank away from the third magnetic fluid transmission shaft is connected to a power cylinder, and one end of the power cylinder away from the crank is movably connected to a cylinder stopper, and the cylinder stopper is installed on the outer side of the first box; The vacuum gate includes a hollow vacuum door frame and a door panel movably connected to the vacuum door frame; a ball screw perpendicular to the ground is connected to the top of the door panel, and the end of the ball screw away from the door panel is connected to a second magnetic fluid transmission shaft that runs through the vacuum door frame, and the end of the second magnetic fluid transmission shaft exposed outside the vacuum door frame is connected to a power motor.

2. The vacuum drying oven according to claim 1, characterized in that: The side of the vacuum gate away from the first box is also airtightly connected to the second box, and the side of the second box away from the vacuum gate is airtightly connected to the second gate; The first box body and the second box body are symmetrically arranged, and the second box body has the same structure as the first box body; The first gate and the second gate are symmetrically arranged, and the second gate has the same structure as the first gate.

3. The vacuum drying oven according to claim 1, characterized in that: The first gate includes a first door frame and a first door panel movably connected to the first door frame; a linear cylinder perpendicular to the ground is also connected between the first door frame and the first door panel.

4. The vacuum drying oven according to claim 3, characterized in that: A door panel locking structure is also connected to a side of the first door frame away from the first box body; the door panel locking structure includes four locking cylinders, and push rods of the locking cylinders are all facing the first door panel.

5. The vacuum drying oven according to claim 1, characterized in that: The first box body is also provided with a plurality of vacuum perspective windows, each of which is provided with a transport vehicle sensor, and the transport vehicle sensor is connected to the outer side of the first box body.

6. The vacuum drying oven according to claim 1, characterized in that: The shape of the cross section of the first guide rail perpendicular to the length direction is an isosceles trapezoid, and the shape of the cross section of the second guide rail perpendicular to the length direction is a rectangle.

Images