Battery baking apparatus

Abstract

A battery baking apparatus (1), which relates to the technical field of batteries, is configured to improve the drying efficiency of battery cells (2). The battery baking apparatus (1) comprises an enclosure (11), a door (12) and at least one tray (13), wherein a cavity (a) and an opening (d) in communication with the cavity (a) are formed in the enclosure (11); the door (12) covers the opening (d); the at least one tray (13) is arranged in the cavity (a), the tray (13) is provided with a first airflow channel (w) that vertically penetrates the bottom wall of the tray (13), and the tray (13) is used for accommodating battery cells (2), part of the bottom wall surfaces of the battery cells (2) providing clearance for the first airflow channel (w), which is used for circulation of a heat-exchange airflow; and a sealing assembly (14) is arranged in the circumferential direction of the tray (13) and is used for providing seal between the tray (13) and the inner wall surface of the cavity (a), and between the tray (13) and the inner wall surface of the door (12).

Description

Battery baking equipment

[0001] Cross-reference to related applications

[0002] The present disclosure is based on and claims priority to Chinese Patent Application No. 202410842184.X, filed on June 26, 2024, entitled "Battery baking equipment", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of batteries, and in particular to a battery baking equipment. BACKGROUND

[0004] New energy batteries are increasingly widely used in life and industry. For example, new energy vehicles equipped with batteries have been widely used, and batteries are also increasingly used in energy storage fields and the like.

[0005] In related technologies, during the production of battery monomers, the battery monomers need to be subjected to drying treatment. The drying treatment process is generally air conveying type. Specifically, a tray in which the battery monomers are placed is placed in a cabinet, and then a fan is arranged in the cabinet. The fan continuously blows hot air, so that the hot air continuously flows in the cabinet, thereby drying the battery monomers in the tray.

[0006] However, since there is a gap between the outer peripheral wall surface of the tray and the inner peripheral wall surface of the cabinet, the hot air will flow from the gap, which will cause the problem of low drying efficiency of the battery monomers.

[0007] SUMMARY

[0008] To solve the above technical problems, the present disclosure provides a battery baking equipment for improving the drying efficiency of battery monomers.

[0009] The present disclosure is implemented through the following technical solutions.

[0010] The present disclosure provides a battery baking equipment, which comprises a cabinet, a door, at least one layer of tray, and a sealing assembly. The cabinet forms a cavity and an opening communicating with the cavity. The door covers the opening. The at least one layer of tray is arranged in the cavity. The tray is formed with a first airflow channel penetrating through a bottom wall of the tray in a vertical direction. The tray is used to accommodate battery monomers. A bottom wall surface of the battery monomers avoids the first airflow channel. The first airflow channel is used to circulate heat exchange airflow. The sealing assembly is arranged along the circumference of the tray and is used to seal the inner wall surface of the tray and the cavity and the inner wall surface of the door.

[0011] In the technical scheme of the embodiments of the present disclosure, the tray is placed into the cavity through the opening, and then the door body is closed at the opening to form a closed space. When the baking treatment is performed, the heat exchange airflow flows through the first airflow channel, and in the process of flowing, the heat in the heat exchange airflow can be conducted to the battery monomer, thereby performing the drying treatment on the battery monomer.

[0012] Since the sealing assembly is arranged along the circumference of the tray, the inner wall surface of the tray and the cavity and the inner wall surface of the tray and the door body are sealed, and there is no gap between the inner wall surface of the tray and the cavity and the inner wall surface of the door body. In the process of flowing of the heat exchange airflow, the heat exchange airflow can only flow through the first airflow channel, so that the cross-sectional area of the heat exchange airflow can be reduced, and in the case that the flow of the heat exchange airflow is constant, the flow rate of the airflow can be improved, thereby improving the exchange speed of the heat in the heat exchange airflow and the battery monomer, and the battery monomer can be heated faster, so that the drying efficiency of the battery monomer is improved.

[0013] In some embodiments of the present disclosure, along the circumference of the tray, the sealing assembly comprises a first sealing part and a second sealing part. The first sealing part is connected with the inner wall surface of the cavity, and the tray is placed on the first sealing part. The bottom wall surface of the tray is sealed and arranged with the inner wall surface of the cavity through the first sealing part. The second sealing part is arranged between the circumferential wall surface of the tray and the inner wall surface of the door body.

[0014] By arranging the first sealing part and the second sealing part, the tray is carried by the first sealing part, and the inner wall surface of the cavity and the tray are sealed by the first sealing part. Meanwhile, the second sealing part is arranged between the circumferential wall surface of the tray and the inner wall surface of the door body to seal the inner wall surface of the door body and the tray.

[0015] In some embodiments of the present disclosure, the first sealing part comprises a carrier and a sealing body. The carrier is connected with the inner wall surface of the cavity in a fit manner, and the tray is placed on the carrier. The sealing body is arranged between the carrier and the bottom wall surface of the tray.

[0016] The carrier carries the tray, and the carrier is connected with the inner wall surface of the cavity in a fit manner, and the bottom wall surface of the tray and the carrier are sealed, so as to seal the bottom wall surface of the tray and the inner wall surface of the cavity by the first sealing part.

[0017] In some embodiments of the present disclosure, a sealing groove is formed between the carrier and the bottom wall of the tray, and the sealing body is at least partially located in the sealing groove, and the sealing groove is matched with the sealing body.

[0018] By arranging the sealing groove between the carrier and the bottom wall of the tray, and arranging the sealing body in the sealing groove, the stable arrangement of the sealing body is ensured, so as to ensure the stability of the sealing.

[0019] In some embodiments of the present disclosure, the first sealing portion extends along the circumference of the tray; and / or, the second sealing portion extends along the circumference of the tray.

[0020] The first sealing portion is a continuous structure, thereby improving the sealing effect between the tray and the inner wall surface of the cavity, and / or, the second sealing portion is a continuous structure, thereby improving the sealing effect between the circumferential wall surface of the tray and the inner wall surface of the door body.

[0021] In some embodiments of the present disclosure, the battery baking equipment further comprises a frame arranged in the cavity for supporting the cabinet body; the frame comprises a connecting portion arranged along the circumference of the tray, the connecting portion is located between the first sealing portion and the inner wall surface of the cavity, and the connecting portion is connected to the first sealing portion in a fit manner.

[0022] The frame is used to provide support for the cabinet body, in this case, the first sealing portion is connected to the frame through the connecting portion, and the connecting portion is connected to the first sealing portion in a fit manner, thereby achieving the sealing between the first sealing portion and the inner wall surface of the cavity.

[0023] In some embodiments of the present disclosure, the frame further comprises a reinforcing rib connected to the connecting portion and connected to the first sealing portion.

[0024] The reinforcing rib is used to improve the connection strength between the connecting portion and the first sealing portion.

[0025] In some embodiments of the present disclosure, the battery baking equipment further comprises a plurality of clamps arranged in the tray, the plurality of clamps are arranged at intervals along a first direction, the first direction forms an angle with the extension direction of the first airflow channel, at least one clamp on each side of the battery monomer is in contact with the battery monomer, the clamp has a second airflow channel penetrating the clamp in the vertical direction, and the first airflow channel and the second airflow channel are in communication.

[0026] The plurality of clamps are in contact with the battery monomer, thereby achieving contact heating, and the bottom wall surface of the battery monomer can also be directly contacted with the airflow, so that the combination of contact heating and air conveying heating is achieved, and the drying efficiency of the battery monomer is improved.

[0027] In some embodiments of the present disclosure, the clamps are slidingly arranged in the tray, and the plurality of clamps can slide along the first direction to approach or move away from each other.

[0028] In this way, different types of battery monomers can be subjected to drying treatment and pressurization.

[0029] In some embodiments of the present disclosure, the battery baking equipment further comprises a heat-conducting member connected to the clamp and used to contact the battery monomer, and the heat-conducting member avoids the second airflow channel.

[0030] The heat conduction member improves the heat exchange efficiency between the battery monomer and the clamp.

[0031] In some embodiments of the present disclosure, the battery baking equipment further comprises a heat pump system for absorbing heat in the cavity and conducting to the heating device.

[0032] Thus, when the heating is completed, the heat pump system absorbs the heat in the hot air in the cavity and transports it to the heating device that needs to be heated, thereby realizing the recycling of heat.

[0033] In some embodiments of the present disclosure, the battery baking equipment further comprises a flow regulating member for being arranged on the fan for generating the heat exchange air flow to adjust and control the current size of the fan operation.

[0034] By setting the flow regulating member, the current of the fan is controlled, so that the air flow speed generated by the fan is suitable to perform suitable drying treatment on the battery monomer.

[0035] In some embodiments of the present disclosure, the battery baking equipment further comprises a fan and a circulation pipe, the fan is arranged on the cabinet body for generating the heat exchange air flow. The air inlet of the circulation pipe and the air outlet of the circulation pipe are in communication with the cavity, and the air inlet of the circulation pipe and the air outlet of the circulation pipe are located on both sides of the tray in the vertical direction, and the fan is communicated with the circulation pipe.

[0036] Thus, the heat exchange air flow can circulate between the circulation pipe and the cavity, and the cyclic utilization of energy in the heat exchange air flow can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0037] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present disclosure. Moreover, the same reference numerals in the attached drawings indicate the same or similar components. In the drawings:

[0038] FIG. 1 is a schematic diagram of an external structure of a battery baking equipment according to some embodiments of the present disclosure;

[0039] FIG. 2 is a schematic diagram of another external structure of a battery baking equipment according to some embodiments of the present disclosure;

[0040] FIG. 3 is a schematic diagram of a cross-sectional view of a battery baking equipment according to some embodiments of the present disclosure;

[0041] FIG. 4 is a schematic diagram of another external structure of a battery baking equipment according to some embodiments of the present disclosure;

[0042] FIG. 5 is a schematic diagram of another cross-sectional view of a battery baking equipment according to some embodiments of the present disclosure;

[0043] Fig. 6 is another external structure schematic diagram of the battery baking equipment according to some embodiments of the present disclosure;

[0044] Fig. 7 is another cross-sectional schematic diagram of the battery baking equipment according to some embodiments of the present disclosure;

[0045] Fig. 8 is a partial enlarged schematic diagram of A in Fig. 1;

[0046] Fig. 9 is a partial enlarged schematic diagram of B in Fig. 6;

[0047] Fig. 10 is an external structure schematic diagram of the frame and the first sealing part according to some embodiments of the present disclosure;

[0048] Fig. 11 is another external structure schematic diagram of the frame and the first sealing part according to some embodiments of the present disclosure;

[0049] Fig. 12 is an exploded schematic diagram of the clamp, the battery monomer and the tray according to some embodiments of the present disclosure;

[0050] Fig. 13 is an external structure schematic diagram of the clamp and the battery monomer according to some embodiments of the present disclosure;

[0051] Fig. 14 is an exploded schematic diagram of the clamp, the heat conduction member and the battery monomer according to some embodiments of the present disclosure.

[0052] Legend of reference signs 1 - battery baking equipment; 11 - cabinet body; a - cavity; b - heat exchange airflow direction; c - sealing groove; d - opening; h - first direction; 12 - door body; 13 - tray; 131 - first support strip; 132 - second support strip; w - first airflow channel; 133 - clamping plate; 14 - sealing assembly; 141 - first sealing part; 1411 - bearing body; 1412 - sealing body; 142 - second sealing part; 15 - frame; 151 - connecting part; 152 - support column; 153 - reinforcing rib; 16 - clamp; f - second airflow channel; e - heat conduction hole; 161 - limiting structure; 1611 - limiting protrusion; 162 - sliding sleeve; 163 - guide rod; 17 - heat conduction member; 2 - battery monomer. DETAILED DESCRIPTION

[0053] The embodiments of the technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present disclosure, and therefore only serve as examples, and cannot limit the protection scope of the present disclosure.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise noted, the terms "including" and "comprising" are open-ended and do not exclude the presence of unrecited elements or limitations.

[0055] In the description of the embodiments of the disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0056] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments of the disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0058] In the description of the embodiments of the disclosure, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the disclosure and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation, be operated or used, and therefore cannot be understood as limiting the embodiments of the disclosure.

[0059] In the description of the embodiments of the present disclosure, unless explicitly defined and limited otherwise, the technical terms "mount", "connect", "connect", "fix", and other terms should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0060] In the description of the embodiments of the present disclosure, unless explicitly defined and limited otherwise, the technical term "contact" should be understood broadly, which can be direct contact or contact through an intermediate medium layer, which can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0061] Next, the present disclosure will be described in detail.

[0062] At present, new energy batteries are more and more widely used in life and industry. New energy batteries are not only used in energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also increasing.

[0063] In the production process of new energy batteries, the production of battery monomers is an important link. In the production process of battery monomers, baking process is needed to heat the battery monomers to remove excess water vapor in the battery monomers.

[0064] In the related art, when the battery monomer is baked, the air conveying type is generally used, specifically, the tray on which the battery monomer is placed is placed in the cabinet, and then the fan is arranged in the cabinet. The fan constantly blows hot air, so that the hot air constantly flows in the cabinet, thereby heating or cooling the battery monomer in the tray.

[0065] However, since there is a gap between the outer peripheral wall surface of the tray and the inner peripheral wall surface of the cabinet, the hot air will flow from the gap, which will result in low baking efficiency of the battery monomer.

[0066] Based on this, as shown in FIG. 1, FIG. 2, and FIG. 3, in some embodiments of the present disclosure, a battery baking equipment 1 is provided, which comprises a cabinet body 11, a door body 12, at least one layer of tray 13, and a sealing assembly 14. The cabinet body 11 is formed with a cavity a and an opening d in communication with the cavity a. The door body 12 covers the opening d. The at least one layer of tray 13 is arranged in the cavity a, and the tray 13 is formed with a first airflow channel w penetrating through the bottom wall of the tray 13 in the vertical direction b. The tray 13 is used to accommodate battery monomers 2, and the bottom wall surface part of the battery monomer 2 avoids the first airflow channel w. The first airflow channel w is used to flow the heat exchange airflow. The sealing assembly 14 is arranged along the circumference of the tray 13 and is used to seal the inner wall surface of the tray 13 and the cavity a and the inner wall surface of the door body 12.

[0067] It can be understood that the heat exchange airflow can be generated by a fan, and a heating source is arranged at the air outlet of the fan to heat the airflow blown by the fan. Exemplarily, the heat exchange airflow generated by the fan can directly enter the cavity a, or the heat exchange airflow can be guided into the cavity a through a pipeline. The number of fans can be one or at least two, for example, two, three, four, five, or more. The number can be set as needed.

[0068] In addition, it can be understood that the bottom wall surface part of the battery monomer 2 avoids the first airflow channel w, which means that the bottom wall surface of the battery monomer 2 cannot completely close the end of the first airflow channel w, and the heat exchange airflow needs to be able to pass through the first airflow channel w.

[0069] Exemplarily, the number of first airflow channels w can be one. Alternatively, the number of first airflow channels w can also be at least two, for example, two, three, four, or more.

[0070] In some examples, the battery monomer 2 can be a secondary battery, which means that the battery monomer 2 can be activated by charging after being discharged to continue to be used.

[0071] The battery monomer 2 can be a lithium ion battery monomer, a sodium ion battery monomer, a sodium lithium ion battery monomer, a lithium metal battery monomer, a sodium metal battery monomer, a lithium sulfur battery monomer, a magnesium ion battery monomer, a nickel hydrogen battery monomer, a nickel cadmium battery monomer, a lead storage battery monomer, etc. The embodiments of the present disclosure are not limited thereto.

[0072] In addition, the battery monomer 2 can be a square or cylindrical battery monomer. For the convenience of the drawings, the present disclosure takes the square battery monomer as an example for the drawings.

[0073] In some examples, the cabinet body 11 can be a regular structure such as a cube, a cylinder, etc. The cube can be a cuboid or a square. In this way, the cabinet body 11 can be placed stably on the ground.

[0074] Of course, the cabinet body 11 can also be an irregular structure.

[0075] For example, the number of cavities a formed inside the cabinet body 11 can be one, and the number of openings d corresponding to the cavities a is also one.

[0076] Alternatively, as shown in FIG. 4, the number of cavities a formed inside the cabinet body 11 can also be at least two, for example, the number of cavities a can be two, three, four, or five. For example, a plurality of cavities a can be arranged perpendicular to the direction of the heat exchange airflow, and a plurality of trays 13 are arranged in the plurality of cavities a. Correspondingly, the number of openings d is also at least two, and at least two openings d are arranged corresponding to at least two cavities a, and the openings d are respectively communicated with the corresponding cavities a.

[0077] The cavity a can be a regular structure such as a cube, a cylinder, etc. The cube can be a cuboid or a square, which facilitates the arrangement of the tray 13.

[0078] Of course, the cavity a can also be an irregular structure.

[0079] In addition, the number of door bodies 12 can be one. Alternatively, the number of door bodies 12 can also be multiple. For example, the door body 12 has two, three, four, or more.

[0080] In some examples, one cabinet body 11 has two openings d, and the two openings d are located in the same plane. Two door bodies 12 are arranged, and the two door bodies 12 correspond to the two openings d of the cabinet body 11 respectively. One door body 12 covers one opening d of the cabinet body 11 to form two cavities a. In this way, the battery monomers 2 in the two cavities a can be independently baked, and various different processing processes can be applied.

[0081] In other examples, one cabinet body 11 has two openings d, and the two openings d are located in the same plane. One door body 12 is arranged, and the door body 12 covers the two openings d of the cabinet body 11 simultaneously to form two cavities a. One door body 12 is used to open and close the two openings d of the cabinet body 11.

[0082] In some examples, the door body 12 is rotationally connected with the cabinet body 11, and the opening or closing of the opening d of the cabinet body 11 is realized by rotating the door body 12.

[0083] In other examples, the door body 12 is slidingly connected with the cabinet body 11, and the opening or closing of the opening d of the cabinet body 11 is realized by sliding the door body 12.

[0084] For the convenience of the schematic diagram of the drawings, as shown in FIG. 4, the cabinet 11 includes two cavities a, the door body 12 is provided with two, and the cabinet 11 is a cuboid and the cavity a is a cuboid. The schematic diagram is taken as an example.

[0085] In some examples, the tray 13 can be a regular structure such as a cube, a cylinder, etc., wherein the cube can be a cuboid or a square. Of course, the tray 13 can also be an irregular structure.

[0086] For the convenience of the arrangement of the tray 13, the cross section of the tray 13 matches the cross section of the cavity a in the direction perpendicular to the heat exchange airflow direction. In this way, the cross-sectional area of the heat exchange airflow flow can be reduced as much as possible, and in the case of a certain heat exchange airflow flow, the flow rate of the heat exchange airflow can be enhanced, thereby improving the heat exchange speed between the heat exchange airflow and the battery monomer 2.

[0087] In addition, at least one tray 13 means that the number of trays 13 can be one. Alternatively, the number of trays 13 can also be at least two, for example, two, three, four, five or six.

[0088] Exemplarily, as shown in FIG. 4, four trays 13 are arranged in one cavity a, and the four trays 13 are arranged in sequence along the vertical direction b. In this way, along the vertical direction b, the heat exchange airflow can flow from one end of the cabinet 11 to the other end and flow through the first airflow passage w on each layer of the tray 13, thereby simultaneously realizing the baking of the battery monomer 2 on the plurality of trays 13 and improving the baking efficiency. In addition, the number of battery monomers 2 accommodated on one tray 13 can be one or at least two, for example, at least two can be two, three, four, five, twenty or one hundred, etc.

[0089] Through the above arrangement, the tray 13 is placed into the cavity a through the opening d, and then the door body 12 is covered at the opening d to form a closed space. When the baking process is performed, the heat exchange airflow flows through the first airflow passage w, and in the process of flowing, the heat in the heat exchange airflow can be conducted to the battery monomer 2, thereby performing the drying treatment on the battery monomer 2.

[0090] Since the sealing assembly 14 is arranged along the circumference of the tray 13, the inner wall surface of the tray 13 and the inner wall surface of the cavity a are sealed, and the inner wall surface of the tray 13 and the inner wall surface of the door body 12 are also sealed. Therefore, there is no gap between the inner wall surface of the cavity a and the inner wall surface of the door body 12. During the flow of the heat exchange gas, the heat exchange gas can only flow through the first gas flow channel w. In this way, the cross-sectional area of the heat exchange gas flow can be reduced, and the flow rate of the heat exchange gas can be increased under the condition that the flow rate of the heat exchange gas is constant. Therefore, the heat exchange speed between the heat exchange gas and the battery monomer 2 can be improved, the battery monomer 2 can be heated faster, and the drying efficiency of the battery monomer 2 can be improved.

[0091] The arrangement form of the sealing assembly 14 is diversified, as long as the sealing between the inner wall surface of the cavity a and the outer wall surface of the tray 13 and the sealing between the inner wall surface of the tray 13 and the door body 12 can be achieved. Several arrangement forms of the sealing assembly 14 are listed below.

[0092] In the first possible implementation, along the circumference of the tray 13, the first part of the sealing assembly 14 is located between the outer circumferential wall surface of the tray 13 and the inner wall surface of the cavity a, and the second part of the sealing assembly 14 is located between the outer circumferential wall surface of the tray 13 and the inner wall surface of the door body 12. In this way, the inner wall surface of the cavity a and the tray 13, and the inner wall surface of the door body 12 and the tray 13 are sealed by the sealing assembly 14. Therefore, the sealing method is simple and direct.

[0093] The sealing assembly 14 can include a sealing ring extending along the circumference of the tray 13, or the sealing assembly 14 can also include a plurality of sealing blocks arranged along the circumference of the tray 13.

[0094] In the second possible implementation, along the circumference of the tray 13, the first part of the sealing assembly 14 is connected to the inner wall surface of the cavity a, and the second part of the sealing assembly 14 is connected to the inner wall surface of the door body 12. The tray 13 is placed on the sealing assembly 14, and the bottom wall surface of the tray 13 is sealed with the sealing assembly 14. In this way, the inner wall surface of the cavity a and the tray 13, and the inner wall surface of the door body 12 and the tray 13 are sealed by the sealing assembly 14. Therefore, the sealing assembly 14 not only plays a sealing role, but also plays a bearing role.

[0095] In the third possible implementation, as shown in FIG. 5, along the circumference of the tray 13, the sealing assembly 14 includes a first sealing part 141 and a second sealing part 142. The first sealing part 141 is connected to the inner wall surface of the cavity a, and the tray 13 is placed on the first sealing part 141. The bottom wall surface of the tray 13 is sealed with the inner wall surface of the cavity a through the first sealing part 141. The second sealing part 142 is arranged between the circumferential wall surface of the tray 13 and the inner wall surface of the door body 12.

[0096] In some examples, the material of the second sealing portion 142 includes rubber.

[0097] In some examples, the second sealing portion 142 can be fixed on the peripheral wall surface of the tray 13, or can also be fixed on the inner wall surface of the door body.

[0098] For example, the fixation of the second sealing portion 142 can be achieved by means of bonding or screw fastening.

[0099] By arranging the first sealing portion 141 and the second sealing portion 142, the tray 13 is supported by the first sealing portion 141, and the inner wall surface of the cavity a and the bottom wall surface of the tray 13 are sealed by the first sealing portion 141. Meanwhile, the second sealing portion 142 is arranged between the peripheral wall surface of the tray 13 and the inner wall surface of the door body 12 to seal the inner wall surface of the door body 12 and the tray 13. The inner wall surface of the cavity a and the tray 13, and the inner wall surface of the door body 12 and the tray 13 are sealed by the first sealing portion 141 and the second sealing portion 142. In this arrangement, the first sealing portion 141 not only plays a sealing role, but also plays a supporting role.

[0100] The arrangement of the first sealing portion 141 is various. In some embodiments, as shown in FIG. 6, the first sealing portion 141 extends along the periphery of the tray 13. That is, the first sealing portion 141 is in a strip shape. The continuous part between the head and the tail of the first sealing portion 141 along the periphery of the tray 13 can provide support and sealing for the tray 13, and the tray 13 can be more stably arranged in the cavity a, and the sealing between the tray 13 and the inner wall surface of the cavity a can also be ensured.

[0101] In other embodiments, along the periphery of the tray 13, the first sealing portion 141 includes a plurality of first sealing segments, the plurality of first sealing segments are arranged in a spaced or adjacent contact manner, the first sealing segments are connected with the inner wall surface of the cavity a, the tray 13 is arranged on the plurality of first sealing segments, and the bottom wall surface of the tray 13 is sealed with the inner wall surface of the cavity a by the plurality of first sealing segments. In this way, the plurality of first sealing segments can achieve the sealing between the bottom wall surface of the tray 13 and the inner wall surface of the cavity a.

[0102] Similarly, the arrangement of the second sealing portion is also various. In some embodiments, the second sealing portion 142 extends along the periphery of the tray 13. That is, the second sealing portion 142 is in a strip shape. The continuous part between the head and the tail of the second sealing portion 142 along the periphery of the tray 13 can seal the inner wall surface of the door body 12 and the tray 13, and the sealing between the tray 13 and the inner wall surface of the door body 12 can be ensured.

[0103] In some embodiments, the first sealing part 141 extends along the circumference of the tray 13. The second sealing part 142 extends along the circumference of the tray 13. That is, the first sealing part 141 and the second sealing part 142 are both in the shape of a strip. Thus, along the circumference of the tray 13, the continuous part between the head and the tail of the first sealing part 141 can provide support and sealing for the tray 13, and can more stably set the tray 13 in the cavity a, while also ensuring the sealing between the tray 13 and the inner wall surface of the cavity a. Meanwhile, along the circumference of the tray 13, the continuous part between the head and the tail of the second sealing part 142 can seal the tray 13 and the inner wall surface of the door body 12, and can ensure the sealing between the tray 13 and the inner wall surface of the door body 12.

[0104] In some embodiments, the first sealing part 141 extends along the circumference of the tray 13. The second sealing part 142 extends along the circumference of the tray 13. That is, the first sealing part 141 and the second sealing part 142 are both in the shape of a strip. Thus, along the circumference of the tray 13, the continuous part between the head and the tail of the first sealing part 141 can provide support and sealing for the tray 13, and can more stably set the tray 13 in the cavity a, while also ensuring the sealing between the tray 13 and the inner wall surface of the cavity a. Meanwhile, along the circumference of the tray 13, the continuous part between the head and the tail of the second sealing part 142 can seal the tray 13 and the inner wall surface of the door body 12, and can ensure the sealing between the tray 13 and the inner wall surface of the door body 12.

[0105] The way in which the bottom wall surface of the tray 13 is sealed with the inner wall surface of the cavity a by the first sealing part 141 is various. In some embodiments, as shown in FIGS. 7 and 8, the first sealing part 141 includes a carrier 1411 and a sealing body 1412. The carrier 1411 is connected to the inner wall surface of the cavity a in a fit manner, and the tray 13 is placed on the carrier 1411. The sealing body 1412 is arranged between the carrier 1411 and the bottom wall surface of the tray 13.

[0106] In some examples, in the case where the first sealing part 141 extends along the circumference of the tray 13, the carrier 1411 and the first sealing part 141 can both extend along the circumference of the tray 13, and along the circumference of the tray 13, the size of the carrier 1411 matches the size of the sealing body 1412. Thus, the sealing degree between the carrier 1411 and the bottom wall surface of the tray 13 can be ensured to the greatest extent.

[0107] In some examples, the material of the sealing body 1412 can include rubber.

[0108] By setting the first sealing part 141 as two parts of the sealing body 1412 and the carrier 1411, the tray 13 is carried by the carrier 1411, and the carrier 1411 is connected to the inner wall surface of the cavity a in a fit manner, and the bottom wall surface of the tray 13 is sealed with the carrier 1411, thereby realizing the sealing of the bottom wall surface of the tray 13 and the inner wall surface of the cavity a by the first sealing part 141. Thus, the tray 13 can be movably arranged on the carrier 1411, which can facilitate the movement of the tray 13 without affecting the sealing effect.

[0109] In other embodiments, the bottom wall surface of the tray 13 can also be attached to the carrier 1411, and the carrier 1411 is attached to the inner wall surface of the cavity a. In this way, the sealing between the bottom wall surface of the tray 13 and the inner wall surface of the cavity a can also be achieved.

[0110] In order to facilitate the arrangement of the sealing body 1412, in some embodiments, as shown in FIGS. 6-9, a sealing groove c is arranged between the carrier 1411 and the bottom wall surface of the tray 13, and the sealing body 1412 is at least partially located in the sealing groove c, and the sealing groove c is matched with the sealing body 1412.

[0111] It should be explained that the sealing body 1412 is matched with the sealing groove c, which means that along the circumferential direction of the tray 13, the size of the sealing body 1412 is close to or equal to the size of the sealing groove c. At the same time, along the direction perpendicular to the extension direction of the sealing body 1412 and perpendicular to the first airflow channel w, the size of the sealing body 1412 is close to or equal to the size of the sealing groove c, so that the sealing body 1412 can be stably arranged in the sealing groove c.

[0112] In some examples, the sealing groove c can be arranged on the carrier 1411. Alternatively, the sealing groove c can also be arranged on the tray 13. In this way, when the tray 13 is taken out of the cavity a, the sealing body 1412 can move together with the carrier 1411 or the tray 13, which can ensure that the sealing body 1412 is stably arranged on the carrier 1411 or the tray 13, and facilitate the use of the sealing body 1412 to seal the tray 13 and the carrier 1411 again.

[0113] Alternatively, the sealing groove c can be arranged on both the tray 13 and the carrier 1411. In this case, when sealing, part of the sealing body 1412 is located in the sealing groove c on the tray 13, and another part of the sealing body 1412 is located in the sealing groove c on the carrier 1411.

[0114] By arranging the sealing groove c, the sealing body 1412 can be stably arranged between the carrier 1411 and the bottom wall surface of the tray 13, avoiding large-scale movement of the sealing body 1412, thereby ensuring the sealing stability between the carrier 1411 and the bottom wall surface of the tray 13.

[0115] Due to the influence of the wall thickness and material of the cabinet 11, the structural strength of the cabinet 11 may need to be strengthened.

[0116] Based on this, as shown in FIG. 6 and FIG. 10, in some embodiments of the present disclosure, the battery baking equipment 1 further comprises a frame 15 arranged in the cavity a for supporting the cabinet 11. The frame 15 comprises a connecting portion 151 arranged along the circumference of the tray 13, the connecting portion 151 is located between the first sealing portion 141 and the inner wall surface of the cavity a, the connecting portion 151 is connected to the inner wall surface of the cavity a and the first sealing portion 141 in a fit manner.

[0117] In some examples, as shown in FIG. 10, the frame 15 further comprises a plurality of support columns 152, the support columns 152 extend along the extension direction (vertical direction b) of the first airflow channel w, and the two ends of the support columns 152 respectively abut the inner wall surface of the cabinet 11, the plurality of support columns 152 are arranged in a spaced manner along the circumference of the tray 13, the connecting portion 151 comprises a plurality of connecting portions 151, the connecting portion 151 is connected to the two adjacent support columns 152, and the plurality of connecting portions 151 are sequentially arranged along the circumference of the tray 13.

[0118] In some examples, along the circumference of the tray 13, the size of the sealing body 1412 is close to or consistent with the size of the connecting portion 151, so as to ensure the connection stability and sealing performance of the connecting portion 151 and the first sealing portion 141.

[0119] In some examples, in the case where the first sealing portion 141 comprises the carrier 1411 and the sealing body 1412, the connecting portion 151 is located between the carrier 1411 and the inner wall surface of the cavity a, and the carrier 1411 is connected to the connecting portion 151 in a fit manner.

[0120] The frame 15 provides support for the cabinet 11, the connecting portion 151 is arranged on the frame 15, the first sealing portion 141 is connected to the connecting portion 151 in a fit manner, and the connecting portion 151 is connected to the inner wall surface of the cabinet 11 in a fit manner, so as to realize the sealing arrangement between the first sealing portion 141 and the inner wall surface of the cavity a. Since the connecting portion 151 is located between the first sealing portion 141 and the inner wall surface of the cavity a, by reasonable arrangement, when the tray 13 is arranged on the first sealing portion 141 in a movable manner, the tray 13 can be located on the inner side of the frame 15, thereby avoiding the frame 15 to move, so as to facilitate the taking and placing of the tray 13.

[0121] On this basis, in some embodiments of the present disclosure, as shown in FIG. 10 and FIG. 11, the frame 15 further comprises a reinforcing rib 153, the reinforcing rib 153 is connected to the connecting portion 151 and the first sealing portion 141.

[0122] In some examples, in the case where the first sealing portion 141 comprises the carrier 1411 and the sealing body 1412, the reinforcing rib 153 is connected to the connecting portion 151 and the carrier 1411.

[0123] In some examples, the reinforcing rib 153, the connecting portion 151, and the first sealing portion 141 can be provided as an integrated structure, so as to maximize the structural strength of the three, and also to avoid multiple processing.

[0124] In some examples, the number of reinforcing ribs 153 can be one. Alternatively, the number of reinforcing ribs 153 can also be multiple, for example, two, three, four, five, or six, etc.

[0125] In some examples, as shown in FIGS. 10 and 11, the number of reinforcing ribs 153 is multiple, and the multiple reinforcing ribs 153 are arranged along the circumference of the tray 13. In this way, the structural strength between the connecting portion 151 and the first sealing portion 141 is strengthened.

[0126] Alternatively, the number of reinforcing ribs 153 is one, and the reinforcing rib 153 extends along the circumference of the tray 13, so as to strengthen the structural strength between the connecting portion 151 and the first sealing portion 141.

[0127] Exemplarily, the cross section (perpendicular to the extension direction of the connecting portion 151) of the reinforcing rib 153 can be triangular or trapezoidal, or the reinforcing rib 153 can also be an irregular cubic structure.

[0128] By providing the reinforcing rib 153, the connecting strength between the first sealing portion 141 and the connecting portion 151 can be improved by the reinforcing rib 153, so as to ensure that the tray 13 can be stably arranged on the first sealing portion 141, thereby ensuring the stable baking.

[0129] In some embodiments of the present disclosure, as shown in FIGS. 12 and 13, the battery cell baking equipment 1 further comprises a plurality of clamps 16 arranged in the tray 13, the plurality of clamps 16 are arranged at intervals along a first direction h, the first direction h forms an angle with the extension direction (heat exchange airflow direction b) of the first airflow channel w, and at least one clamp 16 on both sides of the battery cell 2 is in contact with the battery cell 2, the clamp 16 has a second airflow channel f penetrating the clamp 16 in the vertical direction, and the first airflow channel w and the second airflow channel f are in communication.

[0130] In some examples, as shown in FIG. 12 and FIG. 13, the tray 13 comprises a support structure composed of a plurality of longitudinal and transverse support bars, specifically, the tray 13 comprises a plurality of first support bars 131 extending along the first direction h and a plurality of second support bars 132 extending along a direction perpendicular to the first direction h, and the plurality of first support bars 131 are arranged in a spaced manner along a direction perpendicular to the first direction h, and the plurality of second support bars 132 are arranged in a spaced manner along the first direction h. The first support bars 131 and the second support bars 132 enclose a plurality of first airflow channels w.

[0131] In some examples, the clamp 16 can be a plate structure, and the thickness direction of the clamp 16 is consistent with the first direction h, so that not only heat exchange between the battery monomer 2 and the clamp 16 can be achieved, but also more clamps 16 can be arranged in the first direction h to arrange more battery monomers 2 when the size of the tray 13 is constant, so that more battery monomers 2 can be baked at one time to ensure the baking efficiency.

[0132] In some examples, the material of the clamp 16 can include aluminum or copper, etc.

[0133] In some examples, the number of the second airflow channels f on one clamp 16 can be one. Or the number of the first airflow channels w on one clamp 16 can also be multiple, for example, two, three, four, five or six, etc.

[0134] In some examples, the battery monomer 2 is in contact with both of the two clamps 16 on its two sides, so that the heating efficiency of the battery monomer 2 can be improved.

[0135] In other examples, the battery monomer 2 is in contact with any one of the two clamps 16 on its two sides, so that the contact heating of the battery monomer 2 can also be achieved.

[0136] In some examples, the number of the battery monomers 2 between the two adjacent clamps 16 is multiple, for example, two, three, four, five or six, etc. The multiple battery monomers 2 are arranged in a spaced manner along a direction perpendicular to the first direction h and perpendicular to the heat exchange airflow direction b.

[0137] For example, the number of the battery monomers 2 between the two adjacent clamps 16 is two, and the two battery monomers 2 are arranged in a spaced manner along a direction perpendicular to the first direction h and perpendicular to the heat exchange airflow direction b.

[0138] Of course, the number of the battery monomers 2 between the two adjacent clamps 16 can also be one.

[0139] By setting the clamp 16 in the tray 13, the contact heating of the battery monomer 2 is realized by the contact of the clamp 16 with the side surface of the battery monomer 2. At the same time, part of the heat exchange airflow will also contact the bottom wall surface of the battery monomer 2 after passing through the first airflow channel w, thereby realizing the airflow heating. In this way, the present scheme combines the airflow heating and the contact heating, and better heating effect and faster baking of the battery monomer 2 can be realized.

[0140] In some examples, the extension direction of the first airflow channel w is consistent with the extension direction of the second airflow channel f. In this way, after the heat exchange airflow passes through the first airflow channel w, it will directly enter the second airflow channel f, which can reduce the energy loss in the flow process of the heat exchange airflow, thereby ensuring the baking efficiency of the battery monomer 2.

[0141] In some embodiments, the first airflow channel w has a heat exchange structure. The wall surface of the first airflow channel w can be provided with protrusions and grooves, so that the wall surface of the first airflow channel w is a concave-convex surface. The protrusions and grooves serve as the heat exchange structure on the first airflow channel w. In this way, the surface area of the first airflow channel w can be increased, the contact area between the airflow and the surface of the first airflow channel w can be increased, and the heat exchange speed and the baking efficiency can be improved.

[0142] In some embodiments, as shown in FIG. 14, the battery baking equipment 1 further comprises a heat conduction piece 17, which is connected with the clamp 16 and is used to contact the battery monomer 2, and the heat conduction piece 17 avoids the second airflow channel f.

[0143] In some examples, along the first direction h, the heat conduction piece 17 is arranged between the clamp 16 and the battery monomer 2, and the battery monomer 2 contacts the clamp 16 through the heat conduction piece 17.

[0144] The heat conduction piece 17 can be made of a material with a higher thermal conductivity than the clamp 16, such as a heat-conducting silicone gel, a heat-conducting silicone grease, a heat-conducting gel, a heat-conducting plastic, and the like.

[0145] In some examples, as shown in FIG. 14, a heat conduction hole e can be arranged on the clamp 16, the heat conduction hole e faces the heat conduction piece 17, and the heat conduction hole e communicates with the second airflow channel f. Correspondingly, a heat conduction column (not shown in FIG. 14) matched with the heat conduction hole e can be arranged on the heat conduction piece 17. In this way, the heat conduction piece 17 and the clamp 16 can be fixedly connected through the heat conduction column and the heat conduction hole e, and the contact area between the heat conduction piece 17 and the airflow can be increased, so as to improve the heating or cooling efficiency of the heat conduction piece 17.

[0146] Of course, the heat conduction piece 17 can also be directly pasted on the clamp 16.

[0147] In some embodiments, as shown in FIG. 14, a limiting structure 161 is arranged on the clamp 16, and the limiting structure 161 is used to limit the movement of the battery monomer 2 in the plane perpendicular to the first direction h. Thus, when the battery monomer 2 is clamped between two adjacent clamps 16, the two adjacent clamps 16 can limit the movement of the battery monomer 2 along the first direction h, and the limiting structure 161 can limit the movement of the battery monomer 2 in the plane perpendicular to the first direction h. In this way, the battery monomer 2 can be stably arranged between the two adjacent clamps 16, thereby ensuring the stable heat exchange and the stability of the baking.

[0148] For example, as shown in FIG. 14, the limiting structure 161 includes a plurality of limiting protrusions 1611, which are arranged around the circumference of the battery monomer 2 and abut against the battery monomer 2, thereby achieving the limiting.

[0149] In some embodiments of the present disclosure, as shown in FIG. 12, the clamp 16 is slidingly arranged in the tray 13, and a plurality of clamps 16 can slide to approach or move away from each other along the first direction h.

[0150] In some examples, in order to achieve the sliding between the plurality of clamps 16, as shown in FIG. 12, the two ends of the clamp 16 are provided with a sliding sleeve 162 along the direction perpendicular to the first direction h and perpendicular to the heat exchange gas flow direction (vertical direction b). The tray 13 is provided with a guide rod 163 extending along the first direction h, and the sliding sleeve 162 is sleeved on the guide rod 163, thereby achieving the relative sliding between the plurality of clamps 16.

[0151] In this way, the sliding sleeve 162 can be detachably connected with the clamp 16, so that the clamp 16 can be easily disassembled and assembled. For example, the clamp 16 can be made to slide along the heat exchange gas flow direction b to separate from the sliding sleeve 162.

[0152] In some examples, as shown in FIG. 12, the tray 13 further includes two clamping plates 133, which are respectively arranged at the two ends of the tray 13 along the first direction h and are sleeved on the guide rod 163. The plurality of clamps 16 are arranged between the two clamping plates 133, and at least one of the two clamping plates 133 can slide along the guide rod 163 to simultaneously drive the plurality of clamps 16 to slide, so that the plurality of clamps 16 can be easily operated at the same time.

[0153] On this basis, the tray 13 further includes a locking structure for locking the clamping plate 133 and the guide rod 163. In this way, when the two clamping plates 133 clamp the plurality of clamps 16 therebetween along the first direction h, the locking structure can be used to lock the clamping plate 133 and the guide rod 163, thereby pressurizing the plurality of battery monomers 2.

[0154] By enabling the plurality of clamps 16 to slide along the first direction h to approach or move away from each other, not only the baking of the battery monomer 2 can be achieved, but also the pressurization of the battery monomer 2 can be achieved. Meanwhile, the baking and clamping of different types of battery monomers 2 can also be achieved by adjusting the distance between two adjacent clamps 16, and the versatility is stronger.

[0155] After the heating of the battery monomer 2 in the cavity a is completed, hot air is generally still left in the cavity a, but at this time the battery monomer 2 needs to be cooled, and in order to improve the cooling speed, the heat in the hot air in the cavity a needs to be extracted.

[0156] Based on this, in some embodiments of the present disclosure, the battery baking equipment 1 further comprises a heat pump system, which is used to absorb the heat in the cavity a and conduct to the heating device.

[0157] It can be understood that the heat pump system is used here because the heating device can also be in a heating state, while the battery monomer 2 in the cavity a is in a cooling state, so the temperature in the heating device can be higher than the temperature in the cavity a, and therefore the heat pump system is needed to transfer the heat in the low-temperature gas to the high-temperature gas, so as to realize the recycling of heat.

[0158] The heating device can be another battery baking equipment 1, so that the heat absorbed by the heat pump system is transferred to the cavity a of the battery baking equipment 1. Or the heating device can also be other devices that need to be heated.

[0159] Exemplarily, the heat pump system is arranged on the cabinet 11.

[0160] It can be understood that the heat pump system comprises a compressor, a condenser, an evaporator, and an expansion valve and the like. Specifically, the evaporator is arranged in the cavity a, the condenser is arranged in the heating device, and the compressor and the expansion valve are connected in the circulation loop of the evaporator and the condenser. In this way, the liquid refrigerant in the evaporator can absorb the heat in the air in the cavity a, and then be converted into gaseous refrigerant, the gaseous refrigerant is transferred to the condenser, the condenser condenses and releases the heat in the gaseous refrigerant, the heat enters the heating device, and at the same time the gaseous refrigerant is liquefied into liquid refrigerant again and enters the evaporator, so as to realize the recycling of the heat in the cavity a.

[0161] In this way, when the heating is completed, the heat in the hot air in the cavity a is absorbed by the heat pump system and transferred to the heating device that needs to be heated, so as to realize the recycling of the heat.

[0162] In some embodiments of the present disclosure, the battery baking equipment 1 further comprises a flow adjusting member arranged on the fan generating the heat exchange air flow, for adjusting and controlling the current size of the fan operation.

[0163] Exemplarily, the flow regulating member can include a positive temperature coefficient (PTC) thermistor. The PTC thermistor is arranged on the circuit of the fan to limit the current of the fan, avoid excessive current, avoid excessive speed of the heat exchange airflow generated by the fan, and avoid excessive temperature of the battery monomer 2, thereby ensuring normal heating of the battery monomer 2.

[0164] By arranging the flow regulating member, the current of the fan can be regulated, the speed of the fan can be regulated, and the speed of the heat exchange airflow generated by the fan can be regulated, so that the battery monomer 2 can be baked at a suitable temperature, thereby ensuring smooth completion of baking of the battery monomer 2.

[0165] In some embodiments of the present disclosure, the battery monomer 2 heat treatment apparatus 1 further includes a fan arranged on the cabinet 11 for generating a heat exchange airflow, and a circulation pipe. The air inlet of the circulation pipe and the air outlet of the circulation pipe are both in communication with the cavity a. In the vertical direction, the air inlet of the circulation pipe and the air outlet of the circulation pipe are located on both sides of the tray 13, and the fan is connected to the circulation pipe.

[0166] Exemplarily, the air outlet of the circulation pipe is arranged at the bottom of the cabinet 11, and the air inlet of the circulation pipe is arranged at the top of the cabinet 11, so that the airflow flows in the vertical direction.

[0167] Alternatively, the air outlet of the circulation pipe is arranged at the top of the cabinet 11, and the air inlet of the circulation pipe is arranged at the bottom of the cabinet 11, so that the airflow flows in the vertical direction.

[0168] Exemplarily, the circulation pipe can be arranged outside the cabinet 11. Alternatively, the circulation pipe can also be formed in the side wall of the cabinet 11.

[0169] By arranging the circulation pipe and connecting the fan to the circulation pipe, when the fan is started, the heat exchange airflow enters the cavity a through the air outlet of the circulation pipe, passes through the first airflow passage w in the vertical direction, and heats the battery monomer 2. Then, the heat exchange airflow returns to the circulation pipe through the air inlet of the circulation pipe, so as to realize repeated use of heat in the heat exchange airflow, thereby improving the utilization rate of energy.

[0170] The above is only a preferred embodiment of the present disclosure, and does not limit the patent scope of the present disclosure. Any equivalent structure or equivalent flow transformation obtained by using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present disclosure.

Claims

1. A battery baking apparatus, comprising: a cabinet body formed with a cavity and an opening communicating with the cavity; a door body covering the opening; at least one tray arranged in the cavity, the tray being formed with a first airflow channel penetrating through a bottom wall of the tray in a vertical direction, the tray being configured to accommodate a battery cell, a bottom wall surface of the battery cell being arranged to avoid the first airflow channel, the first airflow channel being configured to flow a heat exchange gas; and a sealing assembly arranged along a periphery of the tray, the sealing assembly being configured to seal the tray with an inner wall surface of the cavity and an inner wall surface of the door body; wherein the sealing assembly comprises: a first sealing portion connected to the inner wall surface of the cavity, the tray being arranged on the first sealing portion, and the bottom wall surface of the tray being sealed with the inner wall surface of the cavity via the first sealing portion; and a second sealing portion arranged between a peripheral wall surface of the tray and the inner wall surface of the door body; wherein the first sealing portion comprises: a carrier body connected to the inner wall surface of the cavity, the tray being arranged on the carrier body; and a sealing body arranged between the carrier body and the bottom wall surface of the tray; wherein a sealing groove is formed between the carrier body and the bottom wall of the tray, the sealing body being at least partially arranged in the sealing groove, and the sealing groove being adapted to the sealing body; wherein the sealing groove is arranged on the carrier body, or the sealing groove is arranged on the tray; wherein the first sealing portion extends along the periphery of the tray, and / or the second sealing portion extends along the periphery of the tray; and wherein the battery baking apparatus further comprises: a frame arranged in the cavity and configured to support the cabinet body, the frame comprising a connecting portion arranged along the periphery of the tray, the connecting portion being arranged between the first sealing portion and the inner wall surface of the cavity, the connecting portion being connected to the inner wall surface of the cavity and connected to the first sealing portion; wherein the frame further comprises: a reinforcing rib connected to the connecting portion and connected to the first sealing portion; wherein the reinforcing rib is provided in a plurality, and the plurality of reinforcing ribs are arranged along the periphery of the tray at intervals; wherein the battery baking apparatus further comprises: a plurality of clamps arranged in the tray, the plurality of clamps being arranged at intervals along a first direction, the first direction being at an angle with respect to an extension direction of the first airflow channel, and the battery cell being arranged between any two adjacent clamps, the battery cell being in contact with at least one of the clamps on each side of the battery cell, each of the clamps being provided with a second airflow channel penetrating through the clamp in a vertical direction, and the first airflow channel and the second airflow channel being in communication; wherein the clamps are slidingly arranged in the tray, and the plurality of clamps are capable of sliding towards or away from each other along the first direction; and wherein each of the clamps is provided with a sliding sleeve at two ends of the clamp perpendicular to the first direction and perpendicular to a direction of the heat exchange gas, and the tray is provided with a guide rod extending along the first direction, and the sliding sleeve is sleeved on the guide rod. ​ ​ ​ ​ 2. The battery bake apparatus of claim 1, wherein, ​ ​ ​ 3. The battery bake apparatus of claim 2, wherein, ​ ​ ​ 4. The battery bake apparatus of claim 3, wherein, ​ 5. The battery bake apparatus of claim 4, wherein, ​ 6. The battery bake apparatus of any one of claims 2-5, wherein, ​ 7. The battery bake apparatus of any one of claims 2-6, wherein, ​ ​ 8. The battery bake apparatus of claim 7, wherein, ​ ​ 9. The battery bake apparatus of claim 8, wherein, ​ 10. The battery bake apparatus of any one of claims 1-9, wherein, ​ ​ 11. The battery bake apparatus of claim 10, wherein, ​ 12. The battery bake apparatus of claim 11, wherein, ​ 13. The battery bake apparatus of claim 12, wherein, Two clamping plates are arranged on the tray, and are arranged at two ends of the tray along the first direction and sleeved on the guide rod. The plurality of clamps are arranged between the two clamping plates. At least one of the two clamping plates can slide along the guide rod.

14. The battery bake apparatus of claim 13, wherein, A locking mechanism is arranged on the tray, and is used for locking the clamping plate and the guide rod.

15. The battery bake apparatus of claim 10, wherein, The battery baking equipment further comprises a heat conduction member connected with the clamp and used for contacting the battery monomer. The heat conduction member avoids the second air flow channel.

16. The battery bake apparatus of claim 15, wherein, A heat conduction hole is arranged on the clamp, and faces the heat conduction member. The heat conduction hole is communicated with the second air flow channel. A heat conduction column matched with the heat conduction hole is arranged on the heat conduction member.

17. The battery bake apparatus of any one of claims 10-16, wherein, The tray comprises a plurality of first support strips and a plurality of second support strips. The first support strips extend along the first direction, and the plurality of first support strips are arranged at intervals along a direction perpendicular to the first direction. The second support strips extend along a direction perpendicular to the first direction, and the plurality of second support strips are arranged at intervals along the first direction. The first support strips and the second support strips enclose a plurality of first air flow channels.

18. The battery bake apparatus of any one of claims 1-17, wherein, The battery baking equipment further comprises a heat pump system used for absorbing heat in the cavity and conducting to a heating device.

19. The battery bake apparatus of any one of claims 1-18, wherein, The battery baking equipment further comprises a flow adjusting member arranged on a fan generating the heat exchange air flow, so as to adjust and control the current size of the fan operation.

20. The battery bake apparatus of any one of claims 1-19, wherein, The battery baking equipment further comprises: A fan arranged on the cabinet and used for generating the heat exchange air flow; A circulation pipe. Inlets and outlets of the circulation pipe are communicated with the cavity. Along the vertical direction, the inlets and the outlets of the circulation pipe are located on two sides of the tray. The fan is communicated with the circulation pipe.

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