Baking oven and baking system

Abstract

The utility model discloses a baking oven and a baking system, and relates to the technical field of battery processing. The baking box comprises a heat conducting plate, and the heat conducting plate comprises a heat conducting plate body, a first heat exchange pipe and a second heat exchange pipe; the heat-conducting plate body comprises a first end and a second end; the first heat exchange pipe is arranged in the heat conduction plate body and comprises a first input end and a first output end, the first input end is arranged at the first end, the first output end is arranged at the second end, and the first input end is used for being communicated with a medium source; the second heat exchange pipe is arranged in the heat conduction plate body and comprises a second input end and a second output end, the second input end is arranged at the second end, the second output end is arranged at the first end, and the second input end is used for being communicated with a medium source. The heat conducting plate provided by the utility model can improve the uniformity and consistency of heat distribution.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to a baking oven and baking system. Background Technology

[0002] The production process of sodium-lithium batteries is highly demanding in terms of moisture content; substandard moisture levels in the cells can significantly impact the performance and safety of the batteries. Therefore, before electrolyte filling, the cells undergo a drying process to remove excess moisture and meet process standards.

[0003] However, existing baking devices suffer from uneven heat conduction in different parts, resulting in inconsistent drying of sodium-lithium batteries in the same batch and affecting the drying effect. Utility Model Content

[0004] This application provides an oven and baking system to improve the uniformity of heat distribution in different parts of the heat-conducting plate.

[0005] In a first aspect, this application provides a heat-conducting plate, comprising:

[0006] The heat-conducting plate body includes a first end and a second end;

[0007] The first heat exchange tube is disposed in the heat-conducting plate body. The first heat exchange tube includes a first input end and a first output end. The first input end is disposed at the first end, and the first output end is disposed at the second end. The first input end is used to connect to the medium source.

[0008] The second heat exchange tube is disposed in the heat-conducting plate body. The second heat exchange tube includes a second input end and a second output end. The second input end is disposed at the second end, and the second output end is disposed at the first end. The second input end is used to connect to the medium source.

[0009] In some possible implementations, the first heat exchange tube includes at least one S-shaped structural segment;

[0010] And / or, the second heat exchange tube includes at least one S-shaped structural segment.

[0011] In some possible implementations, the heat-conducting plate is configured in a first direction, and the first heat exchange tube and the second heat exchange tube are arranged in the heat-conducting plate body along the first direction.

[0012] Secondly, this application provides a baking oven, the baking oven including a box body, the box body being configured with at least one accommodating cavity, and at least one wall panel surrounding the accommodating cavity in the box body including the heat-conducting plate provided in the above embodiments.

[0013] In some possible implementations, the wall panels in the housing that enclose the accommodating cavity include the heat-conducting plate, at least the wall panel located below the gravity direction of the accommodating cavity.

[0014] In some possible implementations, the baking oven further includes a fixture for carrying the workpiece to be baked, the fixture being placed on the wall panel located below the gravity direction of the accommodating cavity;

[0015] The wall panel located below the gravity direction of the accommodating cavity has a heat transfer plate on the side facing the fixture. The fixture has a slot adapted to the heat transfer plate on the side facing the wall panel. The heat transfer plate is accommodated in the slot and is used to fit against the workpiece.

[0016] In some possible implementations, the housing includes a first accommodating cavity and a second accommodating cavity arranged side by side. The housing also includes a first wall panel, a second wall panel, and a third wall panel. The first wall panel is disposed on the side of the first accommodating cavity away from the second accommodating cavity. The second wall panel is disposed between the first accommodating cavity and the second accommodating cavity. The third wall panel is disposed on the side of the second accommodating cavity away from the first accommodating cavity.

[0017] The first wall panel, the second wall panel, and the third wall panel all include the heat-conducting plate.

[0018] Thirdly, this application also provides a baking system, including a pump body, a heating chamber, and the baking chamber provided in the above embodiments;

[0019] The input end of the heating box is connected to the output end of the pump body, and the output end of the heating box is connected to the first input end and the second input end respectively. The first output end and the second output end are both connected to the input end of the pump body.

[0020] In some possible implementations, the baking system further includes a buffer tank connected between the first output terminal, the second output terminal, and the input terminal of the pump body.

[0021] In some possible implementations, the baking system further includes a liquid storage tank, the input end of which is connected to the first output end and the second output end via a first branch, and a first control valve is provided on the first branch;

[0022] The output end of the liquid storage tank is connected to the input end of the pump body through a second branch, and a second control valve is provided on the second branch.

[0023] The beneficial effects of this application are as follows: In the heat-conducting plate provided by this application, the heat medium in the first heat exchange tube and the second heat exchange tube flows in opposite directions, which allows the heat medium at a relatively high temperature to pass through both the first end and the second end of the heat-conducting plate. This ensures that the temperature of each part of the heat-conducting plate is basically consistent, improves the uniformity of heat distribution in each part of the heat-conducting plate, and further ensures that the temperature of each part of the object in contact with the heat-conducting plate is basically consistent, reduces the temperature difference between the parts of the object in contact with the heat-conducting plate, and also ensures that the heating of the same batch of workpieces is consistent. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural schematic diagram of the heat-conducting plate in some embodiments is shown;

[0026] Figure 2 A partial structural schematic diagram of the heat-conducting plate is shown in some embodiments;

[0027] Figure 3 Schematic diagrams of the structure of the first heat exchange tube and the second heat exchange tube in some embodiments are shown;

[0028] Figure 4 Schematic diagrams of the baking oven in some embodiments are shown;

[0029] Figure 5 A schematic diagram of the baking system in some embodiments is shown.

[0030] Explanation of key component symbols:

[0031] 1000 - Heat-conducting plate; 1100 - Heat-conducting plate body; 1101 - First end; 1102 - Second end; 1200 - First heat exchange tube; 1210 - First input end; 1220 - First output end; 1300 - Second heat exchange tube; 1310 - Second input end; 1320 - Second output end; 1400 - S-shaped structure segment;

[0032] 2000 - Baking oven; 2010 - Receptacle cavity; 2011 - First receptacle cavity; 2012 - Second receptacle cavity;

[0033] 100 - Enclosure; 101 - First wall panel; 102 - Second wall panel; 103 - Third wall panel; 104 - Fourth wall panel; 105 - Fifth wall panel; 106 - Door panel; 107 - Wall panel; 210 - Main inlet pipe; 220 - Main outlet pipe; 300 - Heat transfer plate; 400 - Fixture;

[0034] 3100 - Pump body; 3200 - Heating chamber; 3300 - Buffer tank; 3400 - Liquid storage tank; 3410 - First branch; 3411 - First control valve; 3420 - Second branch; 3421 - Second control valve; 3422 - Check valve; 3510 - First pressure gauge; 3520 - Second pressure gauge; 3600 - Temperature sensor;

[0035] M - First direction. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] like Figure 4 As shown, a Cartesian coordinate system is established, defining the length direction of the baking oven 2000 as parallel to the x-axis, the width direction as parallel to the y-axis, and the height direction as parallel to the z-axis. It is understood that the above definitions are merely for ease of understanding the relative positional relationships of the various structural parts within the baking oven 2000 and should not be construed as limitations on this application.

[0042] like Figure 1 and Figure 4 As shown, the embodiment provides a heat-conducting plate 1000, which can be applied in an oven 2000.

[0043] In other embodiments, the heat-conducting plate 1000 can also be used in structures such as cooling boxes.

[0044] like Figure 1 and Figure 2 As shown, in some embodiments, the heat-conducting plate 1000 includes a heat-conducting plate body 1100, a first heat exchange tube 1200, and a second heat exchange tube 1300.

[0045] In some embodiments, the heat-conducting plate body 1100 may be made of aluminum. The heat-conducting plate body 1100 may include a first end 1101 and a second end 1102.

[0046] Both the first heat exchange tube 1200 and the second heat exchange tube 1300 can be made of copper, which provides good temperature and pressure resistance and excellent thermal conductivity. The first heat exchange tube 1200 can be disposed within the heat-conducting plate body 1100, and its outer wall can be in close contact with the heat-conducting plate body 1100, thereby improving the heat exchange efficiency between them. The first heat exchange tube 1200 may include a first input end 1210 and a first output end 1220. The first input end 1210 can be located at the first end 1101 of the heat-conducting plate body 1100, and the first output end 1220 can be located at the second end 1102 of the heat-conducting plate body 1100.

[0047] The second heat exchange tube 1300 can also be arranged in the heat-conducting plate body 1100, and the outer wall of the second heat exchange tube 1300 can be in close contact with the heat-conducting plate body 1100, which can improve the heat exchange efficiency between the second heat exchange tube 1300 and the heat-conducting plate body 1100. The second heat exchange tube 1300 may include a second input end 1310 and a second output end 1320. The second input end 1310 may be located at the second end 1102 of the heat-conducting plate body 1100, and the second output end 1320 may be located at the first end 1101 of the heat-conducting plate body 1100.

[0048] In this embodiment, both the first input terminal 1210 of the first heat exchange tube 1200 and the second input terminal 1310 of the second heat exchange tube 1300 can be used to connect to a medium source. The medium source can be a heat transfer medium.

[0049] In other embodiments, the medium source may also be a cold medium source.

[0050] During the use of the heat-conducting plate 1000, a heat medium source can transport heat medium to the first heat exchange tube 1200 and the second heat exchange tube 1300 of the heat-conducting plate 1000. The heat medium can enter the first heat exchange tube 1200 through the first input end 1210, and the heat medium can sequentially exchange heat with the object in contact with the heat-conducting plate 1000 through the first heat exchange tube 1200 and the heat-conducting plate body 1100 to heat the object in contact with the heat-conducting plate 1000. The heat medium after heat exchange can be output through the first output end 1220. It can be understood that this part of the heat medium can flow from the first end 1101 of the heat-conducting plate body 1100 to the second end 1102.

[0051] Simultaneously, the heat transfer medium can enter the second heat exchange tube 1300 through the second input terminal 1310. The heat transfer medium can sequentially exchange heat with the object in contact with the heat conduction plate body 1100 through the second heat exchange tube 1300 and the heat conduction plate body 1100 to heat the object in contact with the heat conduction plate body 1100. The heat transfer medium after heat exchange can be output through the second output terminal 1320. It can be understood that this part of the heat transfer medium can flow from the second end 1102 of the heat conduction plate body 1100 to the first end 1101.

[0052] In the heat-conducting plate 1000 provided in this application, the heat transfer medium in the first heat exchange tube 1200 and the second heat exchange tube 1300 flows in opposite directions, which allows the heat transfer medium at a relatively high temperature to pass through both the first end 1101 and the second end 1102 of the heat-conducting plate 1000. This ensures that the temperature of each part of the heat-conducting plate 1000 is basically consistent, improves the uniformity of heat distribution in each part of the heat-conducting plate 1000, and further ensures that the temperature of each part of the object in contact with the heat-conducting plate 1000 is basically consistent, reducing the temperature difference between the parts of the object in contact with the heat-conducting plate 1000.

[0053] like Figure 3 As shown, the first heat exchange tube 1200 may include at least one S-shaped structural segment 1400. In some embodiments, the first heat exchange tube 1200 may include multiple S-shaped structural segments 1400, which may be connected sequentially. Thus, by extending the length of the first heat exchange tube 1200 within the heat-conducting plate body 1100, the heat medium flowing through the first heat exchange tube 1200 can fully exchange heat with the heat-conducting plate body 1100, thereby improving the heat utilization rate of the heat medium.

[0054] In other embodiments, the first heat exchange tube 1200 may also include an S-shaped section 1400.

[0055] In some embodiments, the second heat exchange tube 1300 may include at least one S-shaped structural segment 1400. In some embodiments, the second heat exchange tube 1300 may include multiple S-shaped structural segments 1400, which may be connected sequentially. This extends the length of the second heat exchange tube 1300 within the heat-conducting plate body 1100, allowing the heat medium flowing through the second heat exchange tube 1300 to fully exchange heat with the heat-conducting plate body 1100, thereby improving the heat utilization rate of the heat medium.

[0056] In other embodiments, the second heat exchange tube 1300 may also include an S-shaped section 1400.

[0057] like Figure 1 and Figure 2 As shown, the heat-conducting plate 1000 is also provided with a first direction M. In some embodiments, the first direction M may be parallel to the thickness direction of the heat-conducting plate 1000.

[0058] In this embodiment, the first heat exchange tube 1200 and the second heat exchange tube 1300 can be sequentially arranged in the heat-conducting plate body 1100 along the first direction M. That is, the first heat exchange tube 1200 and the second heat exchange tube 1300 are stacked in the heat-conducting plate body 1100 along the thickness direction of the heat-conducting plate 1000.

[0059] In other embodiments, the first heat exchange tube 1200 and the second heat exchange tube 1300 may be arranged at the same position on the heat exchange tube body 1100 in the thickness direction of the heat-conducting plate 1000, that is, the first heat exchange tube 1200 and the second heat exchange tube 1300 may be on the same plane.

[0060] like Figure 4 As shown, the embodiment also provides a baking oven 2000, which may include a housing 100. The housing 100 is provided with at least one accommodating cavity 2010 for placing a workpiece to be baked. During use of the baking oven 2000, the accommodating cavity 2010 can be connected to a vacuum device and can be evacuated. The workpiece may be a semi-finished battery or other structure requiring baking.

[0061] At least one wall panel 107 in the housing 100 used to enclose the accommodating cavity 2010 may include the heat-conducting plate 1000 provided in the embodiment. During use, the heat medium can exchange heat with the gas and workpiece in the accommodating cavity 2010 through the heat-conducting plate 1000 to heat the workpiece, thereby allowing the water vapor in the workpiece to evaporate, thus achieving baking of the workpiece.

[0062] like Figure 4 As shown, in some embodiments, the baking oven 2000 may include two accommodating cavities 2010, namely a first accommodating cavity 2011 and a second accommodating cavity 2012. The two accommodating cavities 2010 may be arranged sequentially along the height direction of the baking oven 2000.

[0063] In other embodiments, the baking oven 2000 may also include one, three, four, or five other accommodating cavities 2010. When there are multiple accommodating cavities 2010, the multiple accommodating cavities 2010 may be arranged sequentially along the length, height, or width of the baking oven 2000, or they may be distributed in an array.

[0064] like Figure 2 and Figure 4 As shown, the baking oven 2000 may include a first wall panel 101, a second wall panel 102, a third wall panel 103, a fourth wall panel 104, two fifth wall panels 105, and two door panels 106. It is understood that the door panels 106 may be used as wall panels 107 that enclose the accommodating cavity 2010.

[0065] Two fifth wall panels 105 are spaced apart and opposite to each other, and the fifth wall panels 105 can be parallel to both the height and width directions of the baking oven 2000. A fourth wall panel 104 can be connected between the two fifth wall panels 105 and can be positioned close to one side of the fifth wall panels 105. In this embodiment, the fourth wall panel 104 can be parallel to both the length and height directions of the baking oven 2000. The first wall panel 101, the second wall panel 102, and the third wall panel 103 are all parallel to both the length and width directions of the baking oven 2000. The first wall panel 101, the second wall panel 102, and the third wall panel 103 can be arranged sequentially at intervals along the height direction of the baking oven 2000, and all are connected to the fourth wall panel 104 and the two fifth wall panels 105. The first wall panel 101 can be positioned close to the bottom end of the baking oven 2000, and the third wall panel 103 can be positioned close to the top end of the baking oven 2000.

[0066] In this embodiment, the first accommodating cavity 2011 may be located between the first wall panel 101 and the second wall panel 102, and the second accommodating cavity 2012 may be located between the second wall panel 102 and the third wall panel 103. Accordingly, the first wall panel 101 may be located below the gravity direction of the first accommodating cavity 2011, and the second wall panel 102 may be located below the gravity direction of the second accommodating cavity 2012.

[0067] In addition, both door panels 106 are arranged opposite to the fourth wall panel 104, and each door panel 106 can be arranged one-to-one with the two receiving cavities 2010. The two door panels 106 can be used to open and close the corresponding receiving cavities 2010, so that the operator can take and put workpieces in the corresponding receiving cavities 2010. In the embodiment, when the door panel 106 closes the receiving cavity 2010, the door panel 106 can be sealed with other wall panels 107 in contact with the housing 100, so that the receiving cavity 2010 can form a closed cavity, so as to evacuate the receiving cavity 2010.

[0068] In some embodiments, the first wall panel 101, the second wall panel 102, and the third wall panel 103 may each include a heat-conducting plate 1000. Accordingly, the bottom and top of the accommodating cavity 2010 may be heated by the respective heat-conducting plates 1000, which can improve the heating efficiency of the accommodating cavity 2010, thereby improving the baking efficiency and increasing the production capacity of the workpiece.

[0069] In other embodiments, the first wall panel 101 and the second wall panel 102 may include a heat-conducting plate 1000.

[0070] In other embodiments, the first wall panel 101, the second wall panel 102, the third wall panel 103, the fourth wall panel 104, the fifth wall panel 105, and the door panel 106 may all include a heat-conducting plate 1000.

[0071] In some embodiments, the first direction M of the heat-conducting plate 1000 may be parallel to the height direction of the oven 2000.

[0072] like Figure 2 and Figure 4 As shown, the baking oven 2000 may further include an input manifold 210 and an output manifold 220. One end of the input manifold 210 can be connected to the first input terminal 1210 and the second input terminal 1310 in the first wall panel 101, the first input terminal 1210 and the second input terminal 1310 in the second wall panel 102, and the first input terminal 1210 and the second input terminal 1310 in the third wall panel 103, respectively. The other end of the input manifold 210 can be used to connect to the supply end of a medium source.

[0073] One end of the output manifold 220 can be connected to the first output terminal 1220 and the second output terminal 1320 in the first wall plate 101, the first output terminal 1220 and the second output terminal 1320 in the second wall plate 102, and the first output terminal 1220 and the second output terminal 1320 in the third wall plate 103, respectively. The other end of the output manifold 220 can be used to connect to the recovery end of the medium source.

[0074] In this embodiment, both the input manifold 210 and the output manifold 220 can be located on the outside of the housing 100, and the first input end 1210, the second input end 1310, the first output end 1220, and the second output end 1320 of each heat-conducting plate 1000 can protrude from the outside of the housing 100. This avoids leakage within the accommodating cavity 2010 that could contaminate the workpiece, and also facilitates the replacement and maintenance of the corresponding pipelines.

[0075] During use, the baking oven 2000 can form a circulating loop of heat medium with the medium source, so that the heat medium carrying heat is continuously transported to the heat-conducting plate 1000 in the oven body 100, and can exchange heat with the gas and workpiece in the accommodating cavity 2010 through the heat-conducting plate 1000 to achieve the baking of the workpiece in the accommodating cavity 2010. After heat exchange, the heat medium can be transported to the recovery end of the medium source through the output manifold 220.

[0076] like Figure 4 As shown, in some embodiments, the baking oven 2000 also includes a fixture 400 for carrying workpieces. The number of fixtures 400 can be determined according to the volume of the accommodating cavity 2010, and is not specifically limited here. During use, workpieces can be arranged and placed in the fixtures 400, and then the fixtures 400 together with the workpieces can be placed in the accommodating cavity 2010 of the oven body 100, and the fixtures 400 can be placed on the first wall plate 101 or the second wall plate 102.

[0077] In some embodiments, a heat transfer plate 300 protrudes from the side of the first wall panel 101 facing the first receiving cavity 2011. One side of the heat transfer plate 300 can be abutted against the first wall panel 101 to facilitate rapid heat exchange between the first wall panel 101 and the heat transfer plate 300. One end of the fixture 400 may have a slot adapted to the heat transfer plate 300. The slot may be formed at the bottom of the fixture 400, and the number of slots can be set as needed; for example, one, two, three, or any other number of slots may be formed on a fixture 400.

[0078] When the fixture 400 is placed on the first wall plate 101, the heat transfer plate 300 can be inserted into the corresponding slot in the fixture 400, and the side of the heat transfer plate 300 facing away from the first wall plate 101 can be in contact with the workpiece in the fixture 400. Thus, the heat in the first wall plate 101 can be directly transferred to the workpiece through the heat transfer plate 300 to bake the workpiece.

[0079] In some embodiments, a heat transfer plate 300 may also be provided on the side of the second wall panel 102 facing the second accommodating cavity 2012, and the arrangement may be similar to that on the first wall panel 101. In the embodiments, the heat transfer plate 300 may be a plate-like structure with high heat transfer efficiency, such as a copper plate or an aluminum plate.

[0080] like Figure 4 Figure 5 As shown, the embodiment also provides a baking system, which may include the baking oven 2000 provided in the embodiment.

[0081] In addition, the baking system also includes a pump body 3100 and a heating chamber 3200. The input end of the heating chamber 3200 can be connected to the output end of the pump body 3100, and the output end of the heating chamber 3200 can be connected to the input manifold 210 in the baking oven 2000. The output manifold 220 of the baking oven 2000 can be connected to the input end of the pump body 3100. The output end of the heating chamber 3200 can be used as the supply end of the medium source, and the input end of the pump body 3100 can be used as the recovery end of the medium source.

[0082] During operation, the pump body 3100, heating chamber 3200, and baking chamber 2000 form a circulating loop for the heat medium. The pump body 3100 serves as the power source for this loop. The heating chamber 3200 heats the flowing heat medium, which is then transported to the baking chamber 2000 and exchanges heat with the workpiece in the accommodating cavity 2010 via the heat-conducting plate 1000. The heat medium after heat exchange is then discharged from the baking chamber 2000 through the output manifold 220 and returned to the input end of the pump body 3100.

[0083] In some embodiments, the baking system further includes a buffer tank 3300, which can be connected between the output manifold 220 and the input end of the pump body 3100. The buffer tank 3300 can be used to temporarily store a certain amount of heat medium, which can ensure that the pressure of the heat medium in the baking system remains stable and allow the heat medium to circulate smoothly in the baking system.

[0084] In some embodiments, the baking system further includes a storage tank 3400 for storing a heat transfer medium. The input end of the storage tank 3400 is connected between the buffer tank 3300 and the output main pipe 220 via a first branch 3410. The output end of the storage tank 3400 is connected between the buffer tank 3300 and the output main pipe 220 via a second branch 3420. The connection point of the first branch 3410 in the pipeline from the output main pipe 220 to the buffer tank 3300 can be located upstream of the connection point of the second branch 3420.

[0085] In addition, a first control valve 3411 is provided on the first branch 3410, which can be used to control the opening and closing of the first branch 3410. A second control valve 3421 and a one-way valve 3422 are provided on the second branch 3420, wherein the second control valve 3421 can be used to control the opening and closing of the second branch 3420. The one-way valve 3422 can prevent the heat medium in the second branch 3420 from flowing back to the output end of the storage tank 3400. In some embodiments, both the first control valve 3411 and the second control valve 3421 can be solenoid valves.

[0086] In some embodiments, the baking system further includes a temperature sensor 3600, a first pressure gauge 3510, and a second pressure gauge 3520. The temperature sensor 3600 may be disposed between the output end of the heating chamber 3200 and the baking chamber 2000, and can be used to detect the temperature of the flowing heat medium in real time, so as to maintain the temperature in the baking chamber 2000 within the required temperature range.

[0087] The first pressure gauge 3510 can be connected between the temperature sensor 3600 and the input manifold 210 of the oven 2000 to detect the pressure of the heat medium input to the oven 2000. The second pressure gauge 3520 can be installed between the output manifold 220 and the buffer tank 3300 in the oven 2000 to detect the pressure of the heat medium output from the oven 2000.

[0088] In addition, the baking system also includes a control unit (not shown), which can be electrically connected to each of the other electrical components in the baking system. Thus, the control unit can uniformly regulate the operation of the other electrical components in the baking system.

[0089] At the initial startup of the baking system, the first control valve 3411 and the second control valve 3421 can be opened, and the pump body 3100 and the heating chamber 3200 can be turned on. This allows the heat medium in the storage tank 3400 to be output through the second branch 3420 and gradually fill the circulation loop of the baking chamber 2000, while the gas in the circulation loop is discharged through the first branch 3410. After the gas in the circulation loop is emptied, the first control valve 3411 and the second control valve 3421 can be closed. Driven by the pump body 3100, the heat medium can circulate in the circulation loop to continuously transfer the heat generated by the heating chamber 3200 to the baking chamber 2000 to bake the workpieces in the baking chamber 2000. During this process, a certain amount of heat medium can always be maintained in the buffer tank 3300. The temperature sensor 3600 can monitor the temperature of the heat medium supplied to the baking chamber 2000 in real time and can calculate the temperature in each accommodating cavity 2010 in the baking chamber 2000.

[0090] In the baking system provided in this application, the temperature in each accommodating cavity 2010 of the baking oven 2000 can be obtained through a single temperature sensor 3600. This simplifies the control logic of the baking system, reduces the difficulty of operation and debugging, and facilitates the maintenance of the baking system.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A baking oven, characterized in that, The baking oven includes a box body, the box body is provided with at least one receiving cavity, and at least one wall panel surrounding the receiving cavity in the box body includes a heat-conducting plate; The heat-conducting plate includes a heat-conducting plate body, a first heat exchange tube, and a second heat exchange tube. The heat-conducting plate body includes a first end and a second end. The first heat exchange tube is disposed in the heat-conducting plate body and includes a first input end and a first output end. The first input end is disposed at the first end, and the first output end is disposed at the second end. The first input end is used to connect to a medium source. The second heat exchange tube is disposed in the heat-conducting plate body and includes a second input end and a second output end. The second input end is disposed at the second end, and the second output end is disposed at the first end. The second input end is used to connect to the medium source. In the housing, among the wall panels used to enclose the accommodating cavity, at least the wall panel located below the gravity direction of the accommodating cavity includes the heat-conducting plate; The baking oven also includes a fixture for supporting the workpiece to be baked. The fixture is placed on the wall panel located below the gravity direction of the accommodating cavity. A heat transfer plate is provided on the side of the wall panel located below the gravity direction of the accommodating cavity facing the fixture. The side of the fixture facing the wall panel has a slot adapted to the heat transfer plate. The heat transfer plate is accommodated in the slot and is used to fit against the workpiece.

2. The baking oven according to claim 1, characterized in that, The first heat exchange tube includes at least one S-shaped structural section; And / or, the second heat exchange tube includes at least one S-shaped structural segment.

3. The baking oven according to claim 1 or 2, characterized in that, The heat-conducting plate is configured in a first direction, and the first heat exchange tube and the second heat exchange tube are arranged in the heat-conducting plate body along the first direction.

4. The baking oven according to claim 1 or 2, characterized in that, The housing includes a first accommodating cavity and a second accommodating cavity arranged side by side. The housing also includes a first wall panel, a second wall panel and a third wall panel. The first wall panel is disposed on the side of the first accommodating cavity away from the second accommodating cavity. The second wall panel is disposed between the first accommodating cavity and the second accommodating cavity. The third wall panel is disposed on the side of the second accommodating cavity away from the first accommodating cavity. The first wall panel, the second wall panel, and the third wall panel all include the heat-conducting plate.

5. A baking system, characterized in that, Includes a pump body, a heating chamber, and a baking oven as described in any one of claims 1 to 4; The input end of the heating box is connected to the output end of the pump body, and the output end of the heating box is connected to the first input end and the second input end respectively. The first output end and the second output end are both connected to the input end of the pump body.

6. The baking system according to claim 5, characterized in that, The baking system also includes a buffer tank, which is connected between the first output terminal, the second output terminal and the input terminal of the pump body.

7. The baking system according to claim 5 or 6, characterized in that, The baking system also includes a liquid storage tank, the input end of which is connected to the first output end and the second output end via a first branch, and a first control valve is provided on the first branch. The output end of the liquid storage tank is connected to the input end of the pump body through a second branch, and a second control valve is provided on the second branch.

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