Heating device and refrigerator

Abstract

The present invention relates to a heating device and a refrigerator. The heating device comprises: a cylinder, which defines a heating chamber for placing a to-be-processed object and has a take-and-drop opening located at the front side thereof; a door, which is used to open and close the take-and-drop opening of the cylinder; an electromagnetic heating device, which is used to generate electromagnetic waves into the heating chamber to heat the to-be-processed object; and a magnetic member, which is arranged on the door or the cylinder and is used to cause the door and the cylinder to attract each other, so that when the door is in a closed state of closing the take-and-drop opening, the door and the cylinder are in close electrical contact, thereby forming a continuous conductive shielding body. The arrangement of the magnetic member reduces the size of the gap between the door and the cylinder, reduces the amount of electromagnetic leakage, and on the other hand, helps the door and the cylinder to form a continuous conductive shielding body, preventing electromagnetic waves from being emitted through the gap that may exist between the door and the cylinder, effectively shielding electromagnetic radiation and eliminating the harm of electromagnetic radiation to the human body.

Description

Technical Field

[0001] The invention relates to the field of food heating, in particular to a heating device and a refrigerator with the heating device. Background Art

[0002] In order to facilitate users to freeze and heat food, the prior art generally thaws food by setting a heating device or a microwave device in the refrigerator. Different heating methods have different thawing effects. The applicant of this application previously applied for a thawing device with high thawing efficiency, uniform thawing and guaranteed food quality, which uses electromagnetic waves to heat the food to be processed.

[0003] Generally speaking, when it comes to electromagnetic waves, everyone thinks that they are harmful to human health. As electromagnetic waves, they do generate radiation to a certain extent. Especially with the increasing number of household appliances, people are paying more and more attention to electromagnetic pollution. If the human body is exposed to strong electromagnetic fields for a long time, it may be prone to cancer. Therefore, anti-electromagnetic interference has become a necessary and imperative task. Summary of the invention

[0004] Normally, people do not know much about the shielding principle of electromagnetic waves. They think that any electrical appliance or tool that uses microwaves to achieve a certain work has electromagnetic radiation and will cause harm to the human body. In fact, this concept is wrong. Because there are only two factors that really affect the shielding effectiveness of the shield: one is that the entire shield surface must be conductive and continuous, and the other is that there must be no conductor that directly penetrates the shield. If there are many conductive discontinuities on the shield, non-conductive gaps will be formed at the junction of different parts of the shield. These non-conductive gaps will cause electromagnetic leakage, just like fluids leaking from the gaps in a container.

[0005] To this end, an object of the first aspect of the present invention is to overcome at least one defect in the prior art and provide a heating device that can effectively reduce or even avoid electromagnetic leakage.

[0006] A further object of the first aspect of the present invention is to further avoid electromagnetic leakage of the heating device.

[0007] Another further object of the first aspect of the present invention is to further improve the safety of the use of the heating device.

[0008] According to a first aspect of the present invention, the present invention provides a heating device, comprising:

[0009] A cylinder body, which defines a heating chamber for placing the object to be processed and has a take-in and put-out opening located at the front side thereof;

[0010] A door body, used for opening and closing the access opening of the cylinder body;

[0011] an electromagnetic heating device, used for generating electromagnetic waves into the heating chamber to heat the object to be processed in the heating chamber; and

[0012] A magnetic member is arranged on the door body or the cylinder body, and is used to cause the door body and the cylinder body to attract each other, so that when the door body is in a closed state to close the access opening, the door body and the cylinder body are in close electrical contact, thereby forming a continuously conductive shielding body.

[0013] Optionally, the door body has a metal end plate for electrically connecting with the cylinder body to seal the heating chamber, and the magnetic member is arranged on a side of the metal end plate away from the cylinder body.

[0014] Optionally, the door body also includes a conductive connector that protrudes from the metal end plate in a direction close to the cylinder and is electrically connected to the metal end plate, and the conductive connector is configured to electrically contact the cylinder when the door body is in a closed state, so as to electrically connect the metal end plate and the cylinder through the conductive connector.

[0015] Optionally, the conductive connecting member is a metal protrusion or a conductive rubber strip protruding backwards from the rear wall of the metal end plate.

[0016] Optionally, a recessed pit recessed backwards is formed at a front position of the metal end plate corresponding to the front and rear of the conductive connecting member, and the magnetic member is accommodated in the recess.

[0017] Optionally, the door body further comprises a front end cover and a rear end plate arranged front and rear, and the metal end plate is located between the front end cover and the rear end plate; and

[0018] The rear end plate is provided with a first through hole, and the conductive connecting member extends backward from the first through hole, so as to be electrically connected to the cylinder when the door body is in a closed state.

[0019] Optionally, a mounting portion is provided on the rear side of the front end cover, and the magnetic component is mounted in the mounting portion by snap-fitting.

[0020] Optionally, the conductive connector is a conductive spring sheet integrally formed with the metal end plate or fixedly connected to the metal end plate, and the conductive spring sheet is configured to be in electrical contact with the front surface of the cylinder when the door body is in a closed state.

[0021] Optionally, the heating device further comprises:

[0022] The slide rail assembly includes a fixed rail disposed inside the cylinder and electrically connected to the cylinder, and a slide rail operable to slide along the fixed rail and electrically contact the fixed rail; wherein

[0023] The conductive connecting member is a conductive spring sheet that is integrally formed with the metal end plate or fixedly connected to the metal end plate. One end of the conductive spring sheet is electrically connected to the metal end plate, and the other end is electrically connected to the fixed rail or the sliding rail, and further electrically connected to the cylinder, at least when the door body is in a closed state.

[0024] According to a second aspect of the present invention, the present invention provides a refrigerator comprising:

[0025] a box body defining at least one storage compartment therein; and

[0026] Any of the above-mentioned heating devices is arranged in one of the storage compartments.

[0027] The heating device of the present invention utilizes an electromagnetic heating device to heat the object to be processed, and has high heating efficiency, uniform heating, and can ensure food quality. The heating device has two relatively independent components, a cylinder and a door body. When the door body is closed, a certain gap will inevitably be formed at the joint position of the cylinder and the door body. This gap is the main reason why the heating device cannot form a continuous conductive shielding body, thereby causing electromagnetic leakage. Therefore, the present invention specially designs a magnetic part on the door body or the cylinder body, so that the door body and the cylinder body attract each other, so that the door body and the cylinder body are in close electrical contact when the door body is in a closed state. On the one hand, the size of the gap between the door body and the cylinder body is reduced, and the amount of electromagnetic leakage is reduced. On the other hand, it also helps the door body and the cylinder body to form a continuous conductive shielding body, preventing electromagnetic waves from being emitted through the gap that may exist between the door body and the cylinder body, effectively shielding electromagnetic radiation, and eliminating the harm of electromagnetic radiation to the human body.

[0028] Furthermore, the present invention is also specially designed with a conductive connecting piece, which can form an electrical connection between the cylinder body and the door body even when there is still a gap between the cylinder body and the door body, thereby forming a continuously conductive shielding body when heated, further preventing electromagnetic waves from being emitted through the gap, effectively shielding electromagnetic radiation, and eliminating the harm of electromagnetic radiation to the human body.

[0029] Furthermore, the door body of the present invention also includes a front end cover and a rear end plate, and a metal end plate with conductive properties is located between the front end cover and the rear end plate. Therefore, the user will not touch the conductive metal end plate when operating the door body, further improving the safety of the use of the heating device.

[0030] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0032] Figure 1 is a schematic partial structural exploded view of a heating device according to one embodiment of the present invention;

[0033] Figure 2 is a schematic exploded view of a door body according to one embodiment of the present invention;

[0034] Figure 3 is a schematic cross-sectional view of a heating device according to an embodiment of the present invention;

[0035] Figure 4 yes Figure 3 A schematic enlarged view of the middle portion A;

[0036] Figure 5 is a schematic structural diagram of a door body and a drawer according to another embodiment of the present invention;

[0037] Figure 6 yes Figure 5 A schematic enlarged view of the middle portion B;

[0038] Figure 7 is a schematic cross-sectional view of a heating device according to yet another embodiment of the present invention;

[0039] Figure 8 yes Figure 7 A schematic enlarged view of the middle portion C;

[0040] Fig. 9 is a schematic structural exploded view of a cylinder and a part of an electromagnetic thawing device according to an embodiment of the present invention;

[0041] Fig.10 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The present invention first provides a heating device for heating, thawing, etc. an object to be processed. The heating device can be used alone or in combination with a refrigerator or other devices.

[0043] Figure 1 is a schematic partial structural exploded view of a heating device according to an embodiment of the present invention. Figure 1 The heating device 10 of the present invention includes a cylinder 110, a door 120 and an electromagnetic heating device ( Figure 11 . The cylinder 110 defines a heating chamber for placing the object to be processed, and has a take-in opening located at the front side thereof. The door 120 is used to open and close the take-in opening of the cylinder 110. Specifically, the door 120 is in a closed state when it closes the take-in opening of the cylinder 110, and is in an open state when it opens the take-in opening of the cylinder 110. The door 120 can be installed with the cylinder 110 in an appropriate manner (e.g., snap-fitting, pulling, etc.).

[0044] The electromagnetic heating device is used to generate electromagnetic waves into the heating chamber to heat the object to be processed in the heating chamber. At least part of the electromagnetic heating device is arranged in the barrel 110. The electromagnetic waves generated by the electromagnetic heating device can be electromagnetic waves with suitable wavelengths such as radio frequency waves and microwaves. This method of heating the object to be processed by using electromagnetic waves has high heating efficiency, uniform heating and can ensure food quality.

[0045] Figure 2 is a schematic exploded view of a door body according to an embodiment of the present invention. For ease of understanding, Figure 2 In particular, the heating device 10 further includes a magnetic member 160, which is disposed on the door body 120 or the cylinder body 110, and is used to cause the door body 120 and the cylinder body 110 to attract each other, so that when the door body 120 is in a closed state to close the access opening of the cylinder body 110, the door body 120 and the cylinder body 110 are in close electrical contact, thereby forming a continuous conductive shielding body.

[0046] The present invention specially designs a magnetic part 160 on the door body 120 or the cylinder body 110 so that the door body 120 and the cylinder body 110 attract each other, so that the door body 120 and the cylinder body 110 are in close electrical contact when the door body 120 is in a closed state. On the one hand, the size of the gap between the door body 120 and the cylinder body 110 is reduced, and the amount of electromagnetic leakage is reduced. On the other hand, it also helps the door body 120 and the cylinder body 110 to form a continuously conductive shielding body, preventing electromagnetic waves from being emitted through the gap that may exist between the door body 120 and the cylinder body 110, thereby effectively shielding electromagnetic radiation and eliminating the harm of electromagnetic radiation to the human body.

[0047] In some embodiments, the door body 120 has a metal end plate 121 for electrically connecting with the cylinder body 110 to seal the heating chamber in the cylinder body 110. When the door body 120 is in a closed state, the metal end plate 121 of the door body 120 seals the access opening of the cylinder body 110, thereby sealing the heating chamber in the cylinder body 110. The cylinder body 110 may be a metal cylinder body, or a non-metal cylinder body on which an electromagnetic shielding feature such as a conductive coating, a conductive metal mesh, etc. is provided.

[0048] Furthermore, the magnetic member 160 can be arranged on the side of the metal end plate 121 away from the cylinder 110 , thereby ensuring the stability of the installation of the magnetic member 160 and ensuring that the door body 120 and the cylinder 110 are tightly attracted to each other through the magnetic member 160 .

[0049] In some embodiments, the door body 120 also includes a conductive connector 122 that protrudes from the metal end plate 121 in a direction close to the cylinder 110 (i.e., backward) and is electrically connected to the metal end plate 121. The conductive connector 122 is configured to electrically contact the cylinder 110 when the door body 120 is in a closed state, so as to electrically connect the metal end plate 121 and the cylinder 110 through the conductive connector 122.

[0050] The present invention specially designs a conductive connector 122 on the door body 120. Even when the door body 120 is in a closed state, there is still a gap between the cylinder body 110 and the door body 120, so that an electrical connection can be formed between the cylinder body 110 and the door body 120, thereby forming a continuously conductive shielding body during heating, further preventing electromagnetic waves from being emitted through the gap, effectively shielding electromagnetic radiation, and eliminating the harm of electromagnetic radiation to the human body.

[0051] Furthermore, the present invention only requires a conductive connector 122 that protrudes and extends from the metal end plate 121 of the door body 120 toward the cylinder body 110, and there is no need to set conductive material in the entire gap between the door body 120 and the cylinder body 110. On the one hand, it can avoid the formation of a gap between the filled conductive material and the door body or the cylinder body, and on the other hand, it also saves a lot of materials and part of the manufacturing process, simplifies the structure of the heating device 10, and reduces its cost.

[0052] In some embodiments, the conductive connector 122 is a metal protrusion or a conductive rubber strip that protrudes backward from the rear wall of the metal end plate 121. Specifically, the conductive connector 122 can be a metal protrusion integrally formed with the metal end plate 121, and the metal protrusion protrudes and extends from the rear surface of the metal end plate 121 toward the direction close to the cylinder 110 (i.e., backward). In other embodiments, the conductive connector 122 can be a metal protrusion fixedly connected to the metal end plate 121, and the metal protrusion can be fixed on the surface of the metal end plate 121 facing the cylinder 110 (i.e., the rear surface) by suitable means such as screw connection, welding, and riveting. In some other embodiments, the conductive connector 122 can be a conductive rubber strip fixed to the metal end plate 121 by conductive glue. In these embodiments, the shape of the metal protrusion or the conductive rubber strip is not limited, and it can be a long strip, square, round or other suitable shapes.

[0053] The conductive connector 122 of the present invention can directly adopt metal bumps or conductive rubber strips, etc., and directly make electrical contact with the outer end surface of the cylinder 110 located at the periphery of its access opening and facing the door body 120, eliminating other complex connection structures, support structures or assembly structures, further simplifying the structure of the heating device 10 and reducing its cost.

[0054] Figure 3 is a schematic cross-sectional view of a heating device according to an embodiment of the present invention, Figure 4 yes Figure 3 Schematic enlarged view of the middle part A. In some embodiments, the front side of the metal end plate 121 corresponding to the front and rear of the conductive connector 122 forms a recessed pit 1211 that is recessed backwards, and the magnetic member 160 is accommodated in the recess 1211. That is, in these embodiments, the magnetic member 160 can attract the cylinder 110 through the conductive connector 122.

[0055] Furthermore, the door body 120 also includes a front end cover 123 and a rear end plate 124 arranged front and rear, and the metal end plate 121 is located between the front end cover 123 and the rear end plate 124. Therefore, the user will not touch the conductive metal end plate 121 when operating the door body 120, further improving the safety of the use of the heating device 10.

[0056] Specifically, in some embodiments, the front end cover 123 and the rear end plate 124 can be fastened and connected by means of clamping and / or screw connection, and the metal end plate 121 is clamped between the front end cover 123 and the rear end plate 124. The metal end plate 121 may have a connection relationship (such as clamping, screw connection or other suitable connection relationship) with the front end cover 123 or the rear end plate 124, or may not have a connection relationship, and a stable support can be obtained only by the clamping force of the front end cover 123 and the rear end plate 124. In other embodiments, the front end cover 123 and the metal end plate 121 can be pre-assembled together in a suitable manner, for example, the front end cover 123 of plastic material can be injection molded on the front side of the metal end plate 121, and then the front end cover 123 injection molded on the front side of the metal end plate 121 is assembled with the rear end plate 124. In some embodiments, the heating device 10 also includes a drawer 140 for carrying the object to be processed, and the drawer 140 is connected to the rear side of the door body 120, and can be pushed and pulled in the cylinder 110 through the access opening. The rear end plate 124 is integrally formed with or fixedly connected to the drawer 140 .

[0057] Furthermore, a first through hole 1241 is formed on the rear end plate 124, and the conductive connector 122 extends backward from the first through hole 1241, so that the conductive connector 122 is allowed to be in electrical contact with the cylinder 110 when the door body 120 is in a closed state. The shape of the first through hole 1241 can be consistent with the shape of the conductive connector 122 to enhance the appearance of the door body 120.

[0058] In some embodiments, a mounting portion 1231 is provided on the rear side of the front cover 123, and the magnetic member 160 is mounted in the mounting portion 1231 by snapping. When the front cover 123, the metal end plate 121 and the rear plate 124 are assembled together, the magnetic member 160 snapped in the mounting portion 1231 is accommodated in the recess 1211.

[0059] Figure 5 is a schematic structural diagram of a door body and a drawer according to another embodiment of the present invention, Figure 6 yes Figure 5 Schematic enlarged view of the middle part B. In some embodiments, the conductive connector 122 is a conductive spring that is integrally formed with the metal end plate 121 or fixedly connected to the metal end plate 121, and the conductive spring is configured to electrically contact the front surface of the cylinder 110 when the door body 120 is in a closed state. Specifically, the conductive spring is integrally formed with the metal end plate 121. In this case, the conductive spring can be a metal spring made of the same material as the metal end plate 121. In other embodiments, the conductive spring can also be fixed to the metal end plate 121 by screw connection, welding or riveting.

[0060] Specifically, the conductive spring piece may include at least one straight end section 1221 and an arched section 1222 protruding from the end section 1221 toward the cylinder 110. Figure 5 and Figure 6 In the illustrated embodiment, the conductive spring includes two end sections 1221 , and the arch section 1222 is disposed between the two end sections 1221 .

[0061] Furthermore, at least one of the end sections 1221 is fastened to the metal end plate 121 by screws, and the arched section 1222 is configured to be in electrical contact with the forward surface of the cylinder 110 when the door body 120 is in a closed state, so as to electrically connect the metal end plate 121 and the cylinder 110 through a conductive spring sheet, thereby further simplifying the structure of the heating device 10 and reducing its cost.

[0062] The metal end plate 121 may be provided with a second through hole 1212, and the conductive spring has two end sections 1221, and the arched section 1222 of the conductive spring is located between the two end sections 1221. The two end sections 1221 of the conductive spring are both located at the front side of the metal end plate 121 away from the cylinder 110, and the arched section 1222 of the conductive spring extends backward through the pit 1211. Such a structural relationship and connection relationship between the conductive spring and the metal end plate 121 can make the electrical connection between the two more reliable, and also make the installation of the conductive spring more stable.

[0063] Figure 7 is a schematic cross-sectional view of a heating device according to yet another embodiment of the present invention, Figure 8 yes Figure 7 Schematic enlarged view of the middle part C. In some embodiments, the heating device 10 further includes a slide rail assembly 150, the slide rail assembly 150 includes a fixed rail 151 disposed inside the cylinder 110 and electrically connected to the cylinder 110, and a slide rail 152 operable to slide along the fixed rail 151 and electrically contact the fixed rail 151. The door body 120 can be slidably connected to the cylinder 110 in the front-to-back direction through the slide rail assembly. In these embodiments, the conductive connector 122 can be a conductive spring piece integrally formed with the metal end plate 121 or fixedly connected to the metal end plate 121, one end of the conductive spring piece is electrically connected to the metal end plate 121, and the other end is electrically connected to the fixed rail 151 or the slide rail 152 at least when the door body 120 is in a closed state, and then electrically connected to the cylinder 110.

[0064] Furthermore, the slide rail 152 can be arranged outside the drawer 140, and the other end of the conductive spring is electrically connected to the slide rail 152, and then electrically connected to the cylinder 110 through the slide rail 152 and the fixed rail 151. Therefore, no matter what state the door body 120 is in, the conductive spring will maintain a stable and reliable electrical connection with the cylinder 110 through the slide rail 152 and the fixed rail 151, thereby improving the reliability of the electromagnetic shielding of the heating device 10 and the safety of the use of the heating device 10.

[0065] Fig. 9 1 is a schematic structural exploded view of a cylinder and a part of an electromagnetic thawing device according to an embodiment of the present invention. In some embodiments of the present invention, the cylinder 110 may include a metal body and a metal decorative part 112 attached to the front side of the metal body. The metal decorative part 112 may be, for example, a sheet metal part that is in electrostatic contact with the metal body. The front surface of the metal decorative part 112 forms the front surface of the cylinder 110. The metal body may include a metal lower cover 1112 and a metal upper cover 1111 covering the metal lower cover 1112. The metal lower cover 1112 has two lateral side plates, a bottom plate, and a rear plate.

[0066] In some embodiments of the present invention, the electromagnetic heating device includes an electromagnetic generating module 131 (see Fig.10), radiation antenna 132 and antenna cover 133. The electromagnetic generating module 131 is used to generate electromagnetic wave signals. The radiation antenna 132 is electrically connected to the electromagnetic generating module 131 to generate electromagnetic waves of corresponding frequencies in the heating chamber according to the electromagnetic wave signals generated by the electromagnetic generating module 131, thereby heating the object to be processed in the heating chamber. The antenna cover 133 is made of insulating material and is arranged in the cylinder 110, and the heating chamber in the cylinder 110 is divided into a heating chamber 1131 and an electrical chamber 1132, wherein the object to be processed and the radiation antenna 132 are respectively arranged in the heating chamber 1131 and the electrical chamber 1132 to separate the object to be processed and the radiation antenna 132, so as to prevent the radiation antenna 132 from being exposed after the drawer 140 is pulled out and affect the user's experience, and also to prevent the radiation antenna 132 from being dirty or accidentally touched and damaged. The electromagnetic generating module 131 can be arranged on the outside of the cylinder 110.

[0067] Furthermore, the radome 133 may be made of a non-transparent material to reduce electromagnetic losses of electromagnetic waves at the radome 133 , thereby increasing the heating rate of the object to be processed.

[0068] Further, the antenna cover 133 may be disposed at the bottom of the cylinder 110, and includes a horizontally extending partition 1331 and a skirt 1332 extending downward from the edges of the partition 1331. The skirt 1332 may be fixedly connected to the cylinder 110. The radiating antenna 132 may be fixed to the lower side of the partition 1331 by snapping or other suitable means. The radiating antenna 132 may also be directly electroplated on the partition 1331 as a liquid metal material.

[0069] In some embodiments, the electromagnetic heating device further includes a signal processing and measurement and control circuit 134, which is electrically connected to the electromagnetic generating module 131 and is used to detect and adjust specific characteristics of the electromagnetic waves generated by the electromagnetic generating module 131. The radiation antenna 132 can be connected to a circuit board of the signal processing and measurement and control circuit 134. Specifically, the signal processing and measurement and control circuit 134 can be disposed in the electrical room 1132 and located at the rear side of the radiation antenna 132. The signal processing and measurement and control circuit 134 can be supported in the electrical room 1132 by a support frame 135.

[0070] Based on the heating device 10 of any of the above embodiments, the present invention further provides a refrigerator. Fig.10 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention, see Fig.10 The refrigerator 1 of the present invention includes a box body 20, and at least one storage compartment 21 is defined in the box body 20. The refrigerator 1 also includes a compartment door for opening and closing the access openings of each storage compartment, a refrigeration system, etc.

[0071] In particular, the refrigerator 1 further comprises a heating device 10 as described in any of the above embodiments, which is arranged in one of the storage compartments 21. The objects to be processed taken out from the freezer compartment of the refrigerator can be heated by the heating device 10, which has a good heating effect and is convenient to use.

[0072] In some embodiments, a compressor compartment 23 for placing a compressor is further defined in the box body 20. The compressor compartment 23 is generally located at the rear bottom of the box body 20 and is defined by the outer shell and the bottom steel assembly of the box body 20. The electromagnetic generating module 131 can be disposed in the compressor compartment 23 and connected to the signal processing and measurement and control circuit 134 through a cable 136, and further electrically connected to the radiation antenna 132 through the signal processing and measurement and control circuit 134.

[0073] Furthermore, a bracket 231 is provided in the compressor compartment 23 , and the electromagnetic generating module 131 is supported on the bracket 231 .

[0074] Those skilled in the art should understand that, unless otherwise specified, the terms "top", "bottom", "inside", "outside", "horizontal", "front", "back", etc. used to indicate orientation or positional relationships in the embodiments of the present invention are based on the actual use status of the heating device 10 and the refrigerator 1. These terms are only used to facilitate the description and understanding of the technical solution of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0075] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A heating device, characterized in that: include: A cylinder body, which defines a heating chamber for placing the object to be processed and has a take-in and put-out opening located at the front side thereof; A door body, used for opening and closing the access opening of the cylinder body; An electromagnetic heating device, used for generating electromagnetic waves into the heating chamber to heat the object to be processed in the heating chamber; as well as A magnetic member, disposed on the door body, for causing the door body and the cylinder body to attract each other, so that when the door body is in a closed state to close the access opening, the door body and the cylinder body are in close electrical contact, thereby forming a continuous conductive shielding body; The door body has a metal end plate for electrically connecting with the cylinder body to seal the heating chamber, and the magnetic member is arranged on a side of the metal end plate away from the cylinder body; The door body further comprises a conductive connector protruding from the metal end plate toward the direction close to the cylinder and electrically connected to the metal end plate, wherein the conductive connector is configured to electrically contact the cylinder when the door body is in a closed state, so as to electrically connect the metal end plate and the cylinder through the conductive connector; A recessed pit is formed at the front side of the metal end plate corresponding to the front and rear of the conductive connecting member, and the magnetic member is accommodated in the recessed pit; The conductive connecting member is a conductive spring piece integrally formed with the metal end plate or fixedly connected to the metal end plate, the conductive spring piece comprises two straight end sections and an arched section protruding from the end sections toward the cylinder, and the arched section is arranged between the two end sections; The heating device also includes: A slide rail assembly, comprising a fixed rail disposed inside the cylinder and electrically connected to the cylinder, and a slide rail operable to slide along the fixed rail and electrically contact the fixed rail; in The conductive connecting member is a conductive spring sheet that is integrally formed with the metal end plate or fixedly connected to the metal end plate. One end of the conductive spring sheet is electrically connected to the metal end plate, and the other end is electrically connected to the fixed rail or the sliding rail, and further electrically connected to the cylinder, at least when the door body is in a closed state.

2. The heating device according to claim 1, characterized in that The conductive connecting member is a metal protrusion or a conductive rubber strip protruding backwards from the rear wall of the metal end plate.

3. The heating device according to claim 1, characterized in that The door body further comprises a front end cover and a rear end plate arranged front and rear, and the metal end plate is located between the front end cover and the rear end plate; and The rear end plate is provided with a first through hole, and the conductive connecting member extends backward from the first through hole, so as to be electrically connected to the cylinder when the door body is in a closed state.

4. The heating device according to claim 3, characterized in that: A mounting portion is provided on the rear side of the front end cover, and the magnetic component is mounted in the mounting portion by snapping.

5. The heating device according to claim 1, characterized in that: The conductive spring sheet is configured to be in electrical contact with the front surface of the cylinder when the door body is in a closed state.

6. A refrigerator, characterized in that: include: A box body, defining at least one storage compartment therein; as well as The heating device described in any one of claims 1 to 5 is arranged in one of the storage compartments.

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