A vacuum drying oven

Abstract

The present invention discloses a vacuum drying oven, comprising a box body and a heating fixture mechanism, wherein a vacuum drying cavity is arranged in the box body, and the vacuum drying cavity is provided with a plurality of the vacuum drying cavities, and the plurality of the vacuum drying cavities are arranged in parallel along a first direction, and the plurality of the vacuum drying cavities are interconnected, and the heating fixture mechanism is arranged in the vacuum drying cavity. By arranging the plurality of vacuum drying cavities in parallel along the first direction, a plurality of heating fixture mechanisms can be placed at the same time, that is, the vacuum drying oven can heat a plurality of groups of batteries in the heating fixture mechanisms at the same time, thereby improving the efficiency of the vacuum drying oven in heating batteries, and increasing the utilization rate of the factory building within a limited factory building area.

Description

Technical Field

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

[0002] At present, lithium-ion batteries are mainly dried in vacuum drying ovens. The vacuum drying process is to place the lithium battery in a closed drying room, evacuate the room with a vacuum system, and continuously heat the lithium battery, so that the water inside the lithium battery diffuses to the surface through pressure difference or concentration difference. The water molecules gain enough kinetic energy on the surface of the lithium battery, and after overcoming the mutual attraction between molecules, they escape to the low-pressure space of the vacuum chamber and are then pumped away by the vacuum pump. In order to achieve production capacity, the vacuum drying oven occupies a large area, and the corresponding drying room area is also large. However, within a certain factory area, the output of existing vacuum drying ovens can no longer meet market demand. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the object of the present invention is to provide a vacuum drying oven which can greatly improve the production capacity within a certain plant area while ensuring that the performance parameters of the equipment remain unchanged.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a vacuum drying oven, including a box body and a heating clamp mechanism, a vacuum drying cavity is arranged in the box body, a plurality of vacuum drying cavities are arranged, and the plurality of vacuum drying cavities are arranged in parallel along the second direction, the plurality of vacuum drying cavities are interconnected, and the heating clamp mechanism is arranged in the vacuum drying cavity. By arranging the plurality of vacuum drying cavities in parallel along the first direction, a plurality of heating clamp mechanisms can be placed at the same time, that is, the vacuum drying oven can heat the batteries in the plurality of heating clamp mechanisms at the same time, thereby improving the efficiency of the vacuum drying oven in heating the batteries, and increasing the utilization rate of the factory within the limited factory area.

[0005] The present invention is further configured as follows: multiple groups of clamp placement racks are arranged in the vacuum drying chamber, multiple groups of the clamp placement racks are stacked in sequence in the third direction in the vacuum drying chamber, and the heating clamp mechanism is arranged on the clamp placement racks. The heating clamp mechanism is supported and fixed by the clamp placement racks. By arranging multiple groups of clamp placement racks in the vacuum drying chamber, multiple groups of heating clamp mechanisms can be placed in one vacuum chamber, thereby increasing the use of longitudinal space within a limited factory area and greatly increasing the utilization rate of the factory.

[0006] The present invention is further configured as follows: the heating clamp mechanism includes a tray and a heating element arranged in the tray, the tray includes a bottom plate and a fixed plate, the fixed plate extends upward from the bottom of the bottom plate, the fixed plate is arranged around the bottom plate, and the heating element includes a heating plate, and the heating plate is arranged on the bottom plate.

[0007] The present invention is further configured as follows: the base plate is connected to the fixture placement rack, a second groove is provided on a side of the base plate close to the fixture placement rack, a protrusion is provided on the fixture placement rack, and the protrusion and the second groove are matched in size, position and shape.

[0008] The present invention is further configured as follows: an opening and closing door mechanism is provided on the box body, the opening and closing door mechanism includes an opening and closing door assembly, a moving assembly and a power assembly, the moving assembly connects the opening and closing door assembly and the box body, the power assembly connects the opening and closing door assembly and the box body, the opening and closing door assembly includes a plurality of opening and closing door bodies, the opening and closing door bodies are driven to reciprocate in a first direction by the moving assembly, and the opening and closing door bodies are driven to reciprocate in a second direction by the power assembly. The opening and closing door assembly is driven to reciprocate in the second direction by the power assembly, and the relative position of the opening and closing door assembly in the second direction is adjusted to realize the opening or closing of the opening and closing door body, the structure is simple, and space can be saved; the opening and closing door assembly is made to move in the first direction by the moving assembly, and the position of the opening and closing door assembly relative to the chamber of the vacuum oven can be adjusted to ensure the sealing of the chamber and the drying effect of the vacuum oven.

[0009] The present invention is further configured as follows: the opening and closing door assembly includes an upper slide, a lower slide and an opening and closing door body arranged between the upper slide and the lower slide, the upper slide and the lower slide are arranged parallel and relatively along a third direction, the opening and closing door body includes a first door panel and a second door panel arranged along a second direction, the first door panel and the second door panel can make reciprocating motion along the second direction between the upper slide and the lower slide, and the first door panel and the second door panel make reciprocating motion along the first direction between the upper slide and the lower slide, the first door panel and the second door panel respectively cooperate with two vacuum drying cavities of a vacuum drying oven, when the first door panel and the second door panel are located on the same horizontal plane along the second direction on the upper slide and the lower slide and do not overlap, the opening and closing door body is in a closed state, and when the first door panel and the second door panel overlap on one side close to each other, the opening and closing door body is in an open state. The first door panel and the second door panel share the upper slide and the lower slide, which can save space. The first door panel and the second door panel overlap each other to realize the opening of the opening and closing door, thereby improving space utilization. When the opening and closing door is closed, the first door panel and the second door panel are located in the same plane, which can ensure the overall sealing of the vacuum oven and achieve a good closing effect.

[0010] The present invention is further configured as follows: the opening and closing door body is connected to the upper slide and the lower slide via the moving assembly, the moving assembly comprises a first clamping block connected to the upper slide, a second clamping block connected to the opening and closing door, and a connecting seat, the connecting seat is arranged between the first clamping block and the second clamping block, and is movably connected to the first clamping block, a power cylinder is provided on the connecting seat, and the power cylinder drives the connecting seat to reciprocate relative to the first clamping block along a first direction.

[0011] The present invention is further configured such that: the first clamping block is provided with a first slot on a side close to the connecting seat, the first slot penetrates the first clamping block in a first direction, and the connecting seat is provided with a sliding block cooperating with the first slot.

[0012] The present invention is further configured as follows: the power assembly includes a slide rail and a slide seat arranged on the slide rail, the slide seat is connected to the first door panel or the second door panel, and the slide seat reciprocates on the slide rail along the second direction.

[0013] The present invention is further configured as follows: the power assembly includes a servo motor and a screw rod, the servo motor is arranged on the slide rail, the two side ends of the slide rail are provided with screw rod seats that cooperate with the screw rod, the slide seat is provided with a screw rod hole that cooperates with the screw rod, the screw rod is inserted into the screw rod hole, and the servo motor drives the screw rod to rotate.

[0014] The present invention has the following beneficial effects:

[0015] 1) By arranging multiple vacuum drying chambers in parallel along the second direction, multiple heating fixture mechanisms can be placed at the same time, that is, the vacuum drying oven can heat multiple groups of batteries in the heating fixture mechanisms at the same time, thereby improving the efficiency of the vacuum drying oven in heating batteries and increasing the utilization rate of the factory within a limited factory area.

[0016] 2) By arranging a multi-layer fixture placement rack in the vacuum drying chamber, multiple groups of heating fixture mechanisms can be placed in one vacuum chamber, thereby increasing the use of longitudinal space within a limited factory area and improving factory utilization.

[0017] 3) The opening and closing door assembly is driven to reciprocate in the second direction by the power assembly, and the relative position of the opening and closing door assembly in the second direction is adjusted to realize the opening or closing of the opening and closing door body. The structure is simple and can save space; the opening and closing door assembly is made to move in the first direction by the moving assembly, and the position of the opening and closing door assembly relative to the chamber of the vacuum oven can be adjusted to ensure the sealing of the cavity and the drying effect of the vacuum oven.

[0018] 4) The first door panel and the second door panel share the upper slide and the lower slide, which can save space. The first door panel and the second door panel overlap each other to realize the opening of the opening and closing door, thereby improving space utilization. When the opening and closing door is closed, the first door panel and the second door panel are located in the same plane, which can ensure the overall sealing of the vacuum oven and achieve a good closing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a vacuum drying oven according to an embodiment of the present invention;

[0020] Figure 2 A cross-sectional view of an empty drying oven according to an embodiment of the present invention;

[0021] Figure 3 is a three-dimensional diagram of a heating fixture mechanism according to an embodiment of the present invention;

[0022] Figure 4 A three-dimensional diagram of a probe assembly according to an embodiment of the present invention;

[0023] Figure 5 A three-dimensional diagram of an opening and closing door mechanism according to an embodiment of the present invention;

[0024] Figure 6 A three-dimensional diagram of a moving assembly according to an embodiment of the present invention;

[0025] Figure 7 is a three-dimensional diagram of a moving assembly according to another embodiment of the present invention;

[0026] Figure 8 It is a three-dimensional diagram of a power assembly according to an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Opening and closing door assembly; 11. Upper slide; 12. Lower slide; 13. First door panel; 14. Second door panel; 141. First groove; 142. Cushion block; 15. Limiting block;

[0029] 2. Moving assembly; 21. First clamping block; 211. First slot; 22. Connecting seat; 221. Second slot; 222. Protruding edge; 223. Limiting groove; 224. Sliding block; 23. Second clamping block; 24. Power cylinder;

[0030] 3. Power assembly; 31. Slide rail; 311. Screw seat; 32. Slide seat; 321. Abutment rod; 33. Servo motor; 34. Screw; 35. Mounting plate; 351. Protrusion;

[0031] 4. Box body; 41. Vacuum pipeline; 42. Inert gas pipeline;

[0032] 5. Vacuum drying chamber;

[0033] 6. Fixture placement rack;

[0034] 7. Heating fixture mechanism; 71. Bottom plate; 711. Second groove; 72. Fixing plate; 73. Adhesive tape; 74. Temperature acquisition module;

[0035] 8. Probe assembly; 81. Probe seat; 82. Fixing bracket. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0037] See attached Figure 1 and attached Figure 2 As shown, in order to facilitate understanding of the positional relationship and motion relationship between the various components, the first direction is defined along the X-axis, the second direction is defined along the Y-axis, and the third direction is defined along the Z-axis. The first direction, the second direction and the third direction are perpendicular to each other. A vacuum drying oven in this embodiment includes a box body 4, a heating fixture mechanism 7 and a vacuum pumping mechanism. A vacuum drying cavity 5 is provided in the box body 4. An opening and closing door mechanism is provided on the box body 4. When the opening and closing door mechanism is opened, the vacuum drying cavity 5 is connected to the outside of the box body 4. When the opening and closing door mechanism is closed, the vacuum drying cavity 5 is a closed space. The heating fixture mechanism 7 is arranged in the vacuum drying cavity 5, and the vacuum pumping mechanism is connected to the box body 4 and communicated with the vacuum drying cavity 5. The vacuum drying cavity 5 is vacuumed by the vacuum pumping mechanism.

[0038] In some embodiments, a vacuum pipe 41 and an inert gas pipe 42 are provided on the box body 4; one end of the vacuum pipe 41 is connected to the vacuum drying cavity 5, and the other end is connected to the vacuum pumping mechanism, and the vacuum pumping mechanism performs vacuum treatment on the vacuum drying cavity 5 through the vacuum pipe 41; one end of the inert gas pipe 42 is connected to the vacuum drying cavity 5, and the other end is connected to the inert gas. After the battery is dried, the vacuum drying cavity 5 can be filled with inert gas through the inert gas pipe 42.

[0039] In some embodiments, the vacuum drying chamber 5 is provided with a plurality of vacuum drying chambers 5, and the vacuum drying chambers 5 are arranged in parallel along the second direction, and the plurality of vacuum drying chambers 5 are interconnected. A heating fixture mechanism 7 can be placed in each vacuum drying chamber 5. By setting a plurality of vacuum drying chambers 5, a plurality of heating fixture mechanisms 7 can be placed at the same time, that is, the vacuum drying oven can heat a plurality of groups of batteries in the heating fixture mechanisms 7 at the same time, thereby improving the efficiency of the vacuum drying oven in heating the batteries. In this embodiment, the vacuum drying chamber 5 is provided with two, and can also be provided with three or four. In practical applications, the number of vacuum drying chambers 5 can be selected and provided appropriately according to the plant area and the output of the battery.

[0040] In some embodiments, multiple groups of clamp racks 6 are arranged in the vacuum drying chamber 5, and multiple groups of the clamp racks 6 are stacked in sequence in the third direction in the vacuum drying chamber 5, and a gap is left between two adjacent groups of clamp racks 6, and the height of the gap is greater than the height of the heating clamp mechanism 7. The heating clamp mechanism 7 is placed on the clamp rack 6, and the heating clamp mechanism 7 is supported and fixed by the clamp rack 6. By arranging multiple layers of clamp racks 6 in the vacuum drying chamber 5, multiple groups of heating clamp mechanisms 7 can be placed in one vacuum drying chamber 5, and within the limited factory area, the use of the longitudinal space of the factory is increased, greatly increasing the utilization rate of the factory. In this embodiment, five clamp racks 6 are arranged in one vacuum drying box 4, and three, four or six can also be arranged. The specific number of the clamp racks 6 can be selected and set according to the height of the factory and the output of the battery.

[0041] See attached Figure 2 and attached Figure 3 As shown, in some embodiments, the heating fixture mechanism 7 is used to place the lithium battery and heat the lithium battery. The heating fixture mechanism 7 includes a tray and a heating element arranged in the tray. The tray includes a bottom plate 71 and a fixing plate 72, the fixing plate 72 extends upward from the bottom of the bottom plate 71, and the fixing plate 72 is arranged around the bottom plate 71. The heating element includes a heating plate, the heating plate is arranged on the bottom plate 71, and the heating plate is used to heat the lithium battery.

[0042] In some embodiments, the heating plate is pasted with Teflon tape 73 on the upward side, and the Teflon tape 73 is used to prevent metal-to-metal contact from scratching the product. The Teflon tape 73 is provided with a plurality of air holes, and the plurality of air holes are arranged in a matrix on the Teflon tape 73.

[0043] In some embodiments, the base plate 71 is connected to the fixture rack 6, and a second groove 711 is provided on the side of the base plate 71 close to the fixture rack 6. A protrusion is provided on the fixture rack 6, and the size, position and shape of the protrusion and the second groove 711 are adapted to each other. When the heating fixture mechanism 7 is placed on the fixture rack 6, the protrusion can be inserted into the second groove 711. The heating fixture mechanism 7 is fixed and limited by the setting of the protrusion and the second groove 711.

[0044] In some embodiments, the heating fixture mechanism 7 further includes a temperature acquisition module 74, which is disposed outside the tray. The temperature acquisition module 74 acquires a detection signal from a temperature sensor to perform real-time detection of the heating temperature of the battery.

[0045] See attached Figure 2 and attached Figure 4 As shown, in some embodiments, a probe assembly 8 is further included, and the probe assembly 8 includes a probe seat 81 and a fixing frame 82, and the probe seat 81 is fixedly mounted on the fixing frame 82; the probe arranged on the probe seat 81 is electrically connected to the heating fixture mechanism 7.

[0046] See attached Figure 1 and attached Figure 5 As shown, an opening and closing door mechanism is arranged on the box body 4, and the opening and closing door mechanism includes an opening and closing door assembly 1, a moving assembly 2 and a power assembly 3. The moving assembly 2 connects the opening and closing door assembly 1 and the box body 4, and the power assembly 3 connects the opening and closing door assembly 1 and the box body 4. The opening and closing door assembly 1 includes an opening and closing door body, and the moving assembly 2 can drive the opening and closing door body to reciprocate along a first direction. The power assembly 3 drives the opening and closing door body to reciprocate in a second direction, and adjusts the relative position of the opening and closing door body in the second direction to realize the opening or closing of the opening and closing door. The structure is simple and can save space. The opening and closing door body can be moved in the first direction by the moving assembly 2, and the position of the opening and closing door body relative to the vacuum drying chamber 5 can be adjusted to ensure the sealing of the vacuum drying chamber 5 and the drying effect of the vacuum oven.

[0047] In some embodiments, the opening and closing door assembly 1 includes an upper slide 11, a lower slide 12 and an opening and closing door body movably arranged between the upper slide 11 and the lower slide 12, the upper slide 11 and the lower slide 12 are arranged parallel to each other along a third direction, the opening and closing door body includes a first door panel 13 and a second door panel 14 arranged along a second direction, the first door panel 13 and the second door panel 14 can make a reciprocating motion along the second direction between the upper slide 11 and the lower slide 12, and the first door panel 13 and the second door panel 14 can move back and forth along the second direction between the upper slide 11 and the lower slide 12. The second door panel 14 reciprocates along the first direction between the upper slide 11 and the lower slide 12, and the first door panel 13 and the second door panel 14 cooperate with the two vacuum drying chambers 5 of the vacuum drying oven respectively. When the first door panel 13 and the second door panel 14 are located on the same horizontal plane along the second direction on the upper slide 11 and the lower slide 12 and do not overlap, the opening and closing door body is in a closed state, that is, the orthographic projections of the first door panel 13 and the second door panel 14 along the first direction do not overlap, and the orthographic projections along the second direction completely overlap. When the first door panel 13 and the second door panel 14 overlap on one side close to each other, the opening and closing door body is in an open state, and the overlap of the first door panel 13 and the second door panel 14 is defined as the orthographic projections of the first door panel 13 and the second door panel 14 in the first direction overlap.

[0048] The reciprocating motion in this embodiment refers to the fact that the first door panel 13 and the second door panel 14 can move back and forth along the first direction and the second direction. Taking the movement of the first door panel 13 in the second direction as an example, it can move close to the second door panel 14 or move away from the second door panel 14 along the second direction. It does not mean that when a single opening or closing is performed, the first door panel 13 will move both close to the second door panel 14 and away from the second door panel 14. When a single opening or closing is performed, the first door panel 13 performs a one-way motion.

[0049] See attached Figure 5 and attached Figure 6 As shown, the opening and closing door body is connected to the upper slide 11 and the lower slide 12 through the moving component 2, and the moving component 2 includes a first clamping block 21, a connecting seat 22 and a second clamping block 23. The first clamping block 21 is connected to the upper slide 11 and the lower slide 12, and the second clamping block 23 is connected to the opening and closing door body. The connecting seat 22 is arranged between the first clamping block 21 and the second clamping block 23, and the connecting seat 22 and the first clamping block 21 are movably connected. A power cylinder 24 is provided on the connecting seat 22, and the power cylinder 24 drives the connecting seat 22 to reciprocate along the first direction relative to the first clamping block 21, thereby driving the second clamping block 23 and the opening and closing door to reciprocate along the first direction.

[0050] See attached Figure 5 and attached Figure 6 As shown, in some embodiments, the first clamping block 21 is provided with the first groove 211 on the side close to the connecting seat 22, and the first groove 211 penetrates the first clamping block 21 in the first direction, and the connecting seat 22 is provided with a second groove 221 on the side close to the first clamping block 21, and the second groove 221 penetrates the connecting seat 22 in the first direction, and a convex ridge 222 which is relatively arranged along the second direction is formed between the second groove 221 and the connecting seat 22, and the convex ridge 222 cooperates and abuts with the first groove 211. When the power cylinder 24 drives the opening and closing door body to move along the first direction, the convex ridge 222 and the first groove 211 play a guiding role to ensure the stable movement of the opening and closing door body and reduce shaking.

[0051] In some embodiments, a limiting groove 223 is further provided on the connecting seat 22, and the power cylinder 24 is arranged in the limiting groove 223. The structure is simple, which helps to reduce the weight of the connecting seat 22 and facilitates the arrangement of the power cylinder 24.

[0052] See attached Figure 5 and attached Figure 7 As shown, in some other embodiments, the first clamping block 21 is provided with the first groove 211 on the side close to the connecting seat 22, and the first groove 211 penetrates the first clamping block 21 in the first direction. The connecting seat 22 is provided with a slider 224 that cooperates with the first groove 211. When the connecting seat 22 moves relative to the first clamping block 21, the slider 224 moves in the first groove 211, ensuring that the movement trajectory of the connecting seat 22 is straight and has good stability.

[0053] When the moving component 2 is set on the upper slide 11 and the lower slide 12, the installation angle thereof will be different according to the positions of the first door panel 13 and the second door panel 14 relative to the upper slide 11 and the lower slide 12. Those skilled in the art can make adaptive installation according to the description of this embodiment, and this embodiment will not be described in detail here.

[0054] In some embodiments, the moving component 2 is respectively arranged at the two side end positions of the first door panel 13 and the second door panel 14 in the second direction to ensure the stability of the first door panel 13 and the second door panel 14 during movement. A limiting block 15 is provided on the side where the first door panel 13 and the second door panel 14 are away from each other. The limiting block 15 cooperates with the ends of the upper slide 11 and the lower slide 12. The moving component 2 is located between the ends of the upper slide 11 and the lower slide 12 and the limiting block 15. The moving component 2 is limited by the limiting block 15 to prevent the moving component 2 from shifting, thereby ensuring the smooth opening and closing of the opening and closing door body and precise control.

[0055] See attached Figure 5 and attached Figure 8 As shown, in some embodiments, the movement of the opening and closing door body along the second direction is controlled by the power component 3, the power component 3 includes a slide rail 31 and a slide seat 32 arranged on the slide rail 31, the slide seat 32 is connected to the first door panel 13 or the second door panel 14, when the vacuum drying chamber 5 corresponding to the first door panel 13 needs to be used, the slide seat 32 is connected to the first door panel 13; when the vacuum drying chamber 5 corresponding to the second door panel 14 needs to be used, the slide seat 32 is connected to the second door panel 14, the slide seat 32 reciprocates along the second direction on the slide rail 31, driving the first door panel 13 or the second door panel 14 to reciprocate in the second direction relative to the upper slide 11 and the lower slide 12, thereby realizing automatic opening and closing of the opening and closing door body.

[0056] In some embodiments, a servo motor 33 and a screw rod 34 are provided on the slide rail 31. The screw rod 34 is connected to the slide seat 32. The servo motor 33 drives the screw rod 34 to rotate, thereby driving the slide seat 32 to move on the slide rail 31. Screw rod seats 311 are provided on both side ends of the slide rail 31. Both side ends of the screw rod 34 are arranged on the screw rod seats 311. The screw rod seats 311 support and limit the screw rod 34 to ensure that the screw rod 34 can maintain its axial direction parallel to the second direction. A screw rod hole that cooperates with the screw rod 34 is provided on the slide seat 32. The axial direction of the screw rod hole is parallel to the second direction, and the screw rod 34 is inserted into the screw rod hole.

[0057] In some embodiments, a mounting plate 35 is provided on the side of the slide seat 32 away from the slide rail 31, and the mounting plate 35 is connected to the first door panel 13 or the second door panel 14. A protrusion 351 is provided on the mounting plate 35, and a first groove 141 is provided on both the first door panel 13 and the second door panel 14. The protrusion 351 is accommodated in the first groove 141. In one example, the protrusion 351 is interference fit with the first groove 141, and the protrusion 351 is clamped in the first groove 141. To ensure the connection efficiency between the mounting plate 35 and the first door panel 13 and the second door panel 14, two protrusions 351 are provided, and a detachable pad 142 is provided in the first groove 141. The two pads 142 are arranged on both sides of the protrusion 351 along the second direction, and the protrusion 351 is fixedly clamped to realize the connection between the mounting plate 35 and the first door panel 13 and the second door panel 14.

[0058] In some embodiments, the mounting plate 35 is screwed onto the slide seat 32 , which has a simple structure and is easy to install.

[0059] In some embodiments, the pad block 142 is screwed into the first groove 141. The position of the pad block 142 in the first groove 141 is adjusted to make the pad block 142 and the protrusion 351 have an interference fit, and the protrusion 351 is fixedly installed to ensure the connection quality between the mounting plate 35 and the first door panel 13 and the second door panel 14, prevent the mounting plate 35 from falling off during movement and affecting the use of opening and closing the door, and ensure the user experience.

[0060] In some embodiments, abutment rods 321 are provided at both side ends of the slide 32 in the second direction, and the abutment rods 321 are arranged in cooperation with the screw seat 311. When the slide 32 moves on the slide rail 31, the abutment rods 321 can prevent the slide 32 from hitting the screw seat 311, thereby reducing the vibration of the first door panel 13 or the second door panel 14 caused by the impact. Exemplarily, the abutment rods 321 are set to be made of rubber material.

[0061] When the vacuum drying chamber 5 needs to be opened, the power cylinder 24 drives the first door panel 13 to move closer to the power assembly 3, or to move away from the power assembly 3, so that the first door panel 13 and the second door panel 14 are staggered in the second direction, and then the servo motor 33 drives the screw rod 34 to drive the slide 32 and the first door panel 13 to move closer to the second door panel 14 in the second direction, and the first door panel 13 and the second door panel 14 overlap, so that the vacuum drying chamber 5 corresponding to the first door panel 13 is opened; when the chamber needs to be closed, the servo motor 33 drives the screw rod 34 to drive the slide 32 and the first door panel 13 to move away from the power assembly 3 in the second direction. The movement of the second door panel 14, when the first door panel 13 and the second door panel 14 no longer overlap, the power cylinder 24 drives the first door panel 13 to move along the first direction, so that it is located in the same plane with the second door panel 14 along the second direction, and the first door panel 13 is closed. The power cylinder 24 can apply a force to the first door panel 13 close to the side of the vacuum drying chamber 5, so that the first door panel 13 has a tendency to move closer to the vacuum drying chamber 5, which can reduce the gap between the first door panel 13 and the vacuum drying chamber 5, improve the overall sealing of the vacuum drying chamber 5, and have a good sealing effect.

[0062] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0063] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0064] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum drying oven, comprising a box body and a heating fixture mechanism, wherein a vacuum drying cavity is arranged in the box body, characterized in that: The vacuum drying chamber is provided in plurality, and the plurality of vacuum drying chambers are placed in parallel along the second direction, the plurality of vacuum drying chambers are interconnected, and the heating fixture mechanism is arranged in the vacuum drying chamber; The box body is provided with an opening and closing door mechanism, which includes an opening and closing door assembly, a moving assembly and a power assembly, wherein the moving assembly connects the opening and closing door assembly and the box body, and the power assembly connects the opening and closing door assembly and the box body, and the opening and closing door assembly includes a plurality of opening and closing door bodies, wherein the opening and closing door bodies are driven to reciprocate in a first direction by the moving assembly, and are driven to reciprocate in a second direction by the power assembly; The opening and closing door assembly comprises an upper slide, a lower slide and an opening and closing door body arranged between the upper slide and the lower slide, the upper slide and the lower slide are arranged parallel and opposite to each other along a third direction, the opening and closing door body comprises a first door panel and a second door panel arranged along a second direction, the first door panel and the second door panel can reciprocate along the second direction between the upper slide and the lower slide, and the first door panel and the second door panel can reciprocate along the first direction between the upper slide and the lower slide, the first door panel and the second door panel are respectively matched with the two vacuum drying chambers of the vacuum drying oven, when the first door panel and the second door panel are located on the same horizontal plane along the second direction on the upper slide and the lower slide and do not overlap, the opening and closing door body is in a closed state, and when the first door panel and the second door panel overlap on one side close to each other, the opening and closing door body is in an open state; The opening and closing door body is connected to the upper slide and the lower slide through the moving assembly, and the moving assembly includes a first clamping block connected to the upper slide, a second clamping block connected to the opening and closing door, and a connecting seat, the connecting seat is arranged between the first clamping block and the second clamping block, and is movably connected to the first clamping block, and a power cylinder is provided on the connecting seat, and the power cylinder drives the connecting seat to reciprocate relative to the first clamping block along a first direction; The first clamping block is provided with a first slot on a side close to the connecting seat, the first slot penetrates the first clamping block in a first direction, and the connecting seat is provided with a sliding block matched with the first slot; The power assembly includes a slide rail and a slide seat arranged on the slide rail, the slide seat is connected to the first door panel or the second door panel, and the slide seat reciprocates along the second direction on the slide rail; The first direction, the second direction and the third direction are perpendicular to each other.

2. A vacuum drying oven according to claim 1, characterized in that: A plurality of groups of fixture placement racks are arranged in the vacuum drying chamber, and the plurality of groups of fixture placement racks are stacked in sequence in the third direction in the vacuum drying chamber, and the heating fixture mechanism is arranged on the fixture placement racks.

3. A vacuum drying oven according to claim 2, characterized in that: The heating fixture mechanism includes a tray and a heating element arranged in the tray, the tray includes a bottom plate and a fixed plate, the fixed plate extends upward from the bottom of the bottom plate, the fixed plate is arranged around the bottom plate, and the heating element includes a heating plate, which is arranged on the bottom plate.

4. A vacuum drying oven according to claim 3, characterized in that: The bottom plate is connected to the fixture placement frame, a second groove is arranged on one side of the bottom plate close to the fixture placement frame, a protrusion is arranged on the fixture placement frame, and the protrusion and the second groove are matched in size, position and shape.

5. A vacuum drying oven according to claim 1, characterized in that: The power assembly includes a servo motor and a screw rod. The servo motor is arranged on the slide rail. The two side ends of the slide rail are provided with screw rod seats that cooperate with the screw rod. The slide seat is provided with a screw rod hole that cooperates with the screw rod. The screw rod is inserted into the screw rod hole. The servo motor drives the screw rod to rotate.

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