Door opening device and electrical equipment

Abstract

The invention discloses a door opening device and electrical equipment, and belongs to the technical field of electrical equipment. The door opening device comprises a shell, a driving piece, a first transmission piece, a first transmission gear, a second transmission gear and a door opening piece, the driving piece and the first transmission piece are installed on the shell, the driving piece is in transmission connection with the first transmission piece, and the first transmission piece is provided with a first tooth part; the first transmission gear is in transmission connection with the first tooth part; the first transmission gear and the second transmission gear are coaxially arranged, and the door opening piece is provided with a second tooth part meshed with the second transmission gear; wherein the first transmission gear or the second transmission gear is provided with a first clamping part, the shell is provided with a second clamping part, and under the condition that the first tooth part and the first transmission gear are separated from transmission, the first clamping part is clamped with the second clamping part. The risk of tooth staggering of the second tooth part and the second transmission gear is reduced, the distance of the door opening piece extending out of the box body can be guaranteed, and then the door opening angle of the door body can be guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of electrical equipment, and in particular, relates to a door opening device and electrical equipment. Background Art

[0002] A door opening device can be provided on the electrical equipment, and the door opening device is installed on the box body. The door body of the refrigerator can be automatically opened by the door opening member of the door opening device. During the door opening process of the door opening device, the door opening member protrudes from the box body to push the door body open. In the related art, in order to improve the stability of the transmission, the drive member, the transmission assembly and the door opening member can be driven by gear meshing. In this case, the gear transmission is prone to misalignment, which will eventually affect the extension distance of the door opening member, thereby affecting the opening angle of the door body. Summary of the invention

[0003] The present application aims to solve the technical problem of affecting the door opening angle at least to a certain extent. To this end, the present application provides a door opening device and an electrical appliance.

[0004] In a first aspect, an embodiment of the present application provides a door opening device, comprising:

[0005] case;

[0006] A driving member and a first transmission member are mounted on the housing, the driving member is transmission-connected to the first transmission member, and the first transmission member has a first tooth portion;

[0007] A first transmission gear, the first transmission gear is transmission-connected with the first tooth portion;

[0008] a second transmission gear and a door opening member, wherein the first transmission gear is coaxially arranged with the second transmission gear, and the door opening member has a second tooth portion meshing with the second transmission gear;

[0009] The first transmission gear or the second transmission gear is provided with a first clamping portion, and the housing is provided with a second clamping portion. When the first tooth portion is out of transmission with the first transmission gear, the first clamping portion is clamped with the second clamping portion.

[0010] In the embodiment of the present application, the second tooth portion and the second transmission gear are always meshed, and the first clamping portion and the second clamping portion are clamped. If the door opening piece is subjected to other external forces, the external force applied to the door opening piece will be transmitted to the second transmission gear due to the meshing of the first tooth portion and the second transmission gear. Since the first clamping portion and the second clamping portion are clamped, the second transmission gear will not rotate relative to the base, and the door opening piece will not move relative to the base, so that the first tooth of the second tooth portion and the first tooth of the second transmission gear can always be meshed, reducing the risk of misaligned teeth between the second tooth portion and the second transmission gear, and can ensure the distance that the door opening piece extends out of the box, thereby ensuring the opening angle of the door body.

[0011] In an optional embodiment of the present application, the first transmission gear is arranged below the second transmission gear, the first clamping portion is arranged on the first transmission gear, the shell includes a base and a cover plate, and the second clamping portion is arranged on the cover plate.

[0012] In an optional embodiment of the present application, the first clamping portion has a stop surface, and the second clamping portion is a clamping hole. Along the door opening direction driven by the second transmission gear to open the door opening member, the stop surface abuts against the inner wall of the clamping hole.

[0013] In an optional embodiment of the present application, the second transmission gear has a pushing portion, and the first transmission member can act on the pushing portion through the driving member of the driving member, so that the second transmission gear drives the first transmission gear to move away from the shell, so that the first clamping portion and the second clamping portion are disengaged.

[0014] In an optional embodiment of the present application, the first transmission member is arranged below the second transmission gear, and the pushing portion is arranged on a side of the second transmission gear close to the housing.

[0015] In an optional embodiment of the present application, the pushing portion has a pushing surface and a supporting surface, the supporting surface is spaced apart from the second transmission gear, the pushing surface is inclined relative to the second transmission gear, and the pushing surface is connected to the supporting surface.

[0016] In an optional embodiment of the present application, the first transmission gear and the second transmission gear are an integrated structure.

[0017] In an optional embodiment of the present application, the first transmission gear and the second transmission gear are clearance-matched with the transmission shaft.

[0018] In an optional embodiment of the present application, the first clamping portion has a stop surface, a connecting surface and a sliding surface, the stop surface connects the connecting surface and the sliding surface, the connecting surface is connected to the first transmission gear or the second transmission gear, and the area of ​​the sliding surface is smaller than the area of ​​the connecting surface;

[0019] When the driving member drives the door opening member to move via the first transmission gear and the second transmission gear, the sliding surface contacts the shell.

[0020] In an optional embodiment of the present application, the first tooth portion has a plurality of first transmission teeth, and the outer peripheral surface of the first transmission gear has a plurality of second transmission teeth meshing with the first transmission teeth;

[0021] Wherein, the outer peripheral surface of the first transmission part is further provided with an avoidance groove, the avoidance groove is arranged close to at least one of the second transmission teeth, and the first transmission tooth can be arranged in the avoidance groove.

[0022] In an optional embodiment of the present application, at least one of the first transmission gear and the second transmission gear is an incomplete gear.

[0023] In a second aspect, an embodiment of the present application further provides an electrical device, comprising a housing, a door, and the door opening device provided in the first aspect, wherein the door opening device is installed on the housing.

[0024] The beneficial effects of the electrical equipment provided in the second aspect are the same as the beneficial effects of the door opening device provided in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of an electrical device provided in an embodiment of the present application is shown.

[0027] Figure 2 A top view of the door opening device provided in an embodiment of the present application with the cover plate removed is shown.

[0028] Figure 3 An exploded view of a door opening device provided in an embodiment of the present application is shown.

[0029] Figure 4 A top view of the door opening device is shown.

[0030] Figure 5 for Figure 4 A partial enlarged view of point D in the middle.

[0031] Figure 6 for Figure 4 Cross-sectional view at AA in the middle.

[0032] Figure 7 for Figure 6 A partial enlarged view of point E in the middle.

[0033] Figure 8 A structural schematic diagram of the door opening device from another perspective is shown.

[0034] Fig. 9 for Figure 8 A partial enlarged view of point G in the middle.

[0035] Fig.10 A schematic structural diagram of the first transmission gear is shown.

[0036] Fig.11 A schematic structural diagram of a door opening member provided in an embodiment of the present application is shown.

[0037] Fig.12 A bottom view of the door opener is shown with the base removed. Fig.13 Shows Fig.12 A partial enlarged view of point H in the middle.

[0038] Fig.14 The schematic diagrams of structures of electrical equipment provided by some other embodiments are shown.

[0039] Fig.15 The schematic diagram of the structure in which the door opening device is installed on the box body is shown.

[0040] Fig.16 A schematic diagram showing the structure of the first door being opened,

[0041] Fig.17 A schematic structural diagram showing the second door body being opened.

[0042] Fig.18 A schematic structural diagram showing the resetting of the first transmission member is shown.

[0043] Fig.19 A schematic diagram of the structure of an electrical device provided in an embodiment of the present application is shown.

[0044] Reference numerals: 100 - door opening device, 110 - driving member, 112 - motor, 114 - transmission wheel, 120 - transmission assembly;

[0045] 130-first transmission member, 131-first tooth portion, 131a-first transmission tooth, 131c-first connecting tooth, 132-first transmission rack, 134-second transmission rack, 135-first detection portion, 136-second detection portion;

[0046] 140 - second transmission member, 142 - first transmission gear, 142a - second transmission tooth, 142b - avoidance groove, 142c - second connecting tooth, 142d - stopper, 144 - second transmission gear, 140a - first rotating member, 140b - second rotating member;

[0047] 150-door opening member, 152-second tooth portion, 154-top door portion, 156-connecting portion, 157-first limiting portion, 150a-first door opening member, 150b-second door opening member;

[0048] 160-housing, 162-mounting cavity, 164-base, 166-cover plate;

[0049] 174-first detection member, 176-second detection member;

[0050] 182-first clamping portion, 182a-stop surface, 182b-connecting surface, 182c-sliding surface;

[0051] 184-second clamping portion, 184a-clamping hole;

[0052] 186-pushing part, 186a-pushing surface, 186b-supporting surface;

[0053] 10-electrical equipment, 210-box, 220-door, 221-first door, 223-second door, 230-decorative cover;

[0054] Z-height direction, X-width direction, Y-thickness direction. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] Electrical appliances such as refrigerators are widely used in daily life. In order to preserve cold air and prevent cold air leakage, the door body has a certain sealing force when it is connected to the cabinet. In the process of opening the door body, the user needs to open the door manually. In order to break through the door seal, a certain amount of force is required to open the door body. This method leads to a poor user experience.

[0060] A door opening device can be provided on the electrical equipment, and the door opening device is installed on the box body. The door body of the refrigerator can be automatically opened by the door opening member of the door opening device. During the door opening process of the door opening device, the door opening member protrudes from the box body to push the door body open. In the related art, in order to improve the stability of the transmission, the drive member, the transmission assembly and the door opening member can be driven by gear meshing. In this case, the problem of gear transmission misalignment may easily occur, which will eventually affect the extension distance of the door opening member and thus the opening angle of the door body. The door opening device and electrical equipment provided in the embodiments of the present application can improve the above-mentioned problem. The door opening device and electrical equipment provided in the embodiments of the present application can avoid the situation of gear transmission misalignment as much as possible, and can ensure the extension length of the door opening member, thereby ensuring the opening angle of the door body.

[0061] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0062] Figure 1 The structure diagram of the electrical device 10 provided in the embodiment of the present application is shown as follows: Figure 1As shown, an embodiment of the present application provides a door opening device 100, which is applied to an electrical device 10. The electrical device 10 includes a box body 210 and a door body 220 rotatably connected to the box body 210. The door opening device 100 can be installed on the box body 210 of the electrical device 10 and can open the door body 220 of the electrical device 10.

[0063] The door opening device 100 can be arranged near the rotation connection point between the cabinet 210 and the door 220, or can be arranged far away from the rotation connection point between the cabinet 210 and the door 220. The setting position of the door opening device 100 is not limited, as long as it can open the door 220. The cabinet 210 is roughly a rectangular parallelepiped. For the convenience of description, the height direction Z, the width direction X and the thickness direction Y are defined respectively, wherein the height direction Z is the vertical direction of the refrigerator in the use state, the thickness direction Y is the direction of the cabinet 210 toward the door 220, and the width direction X is perpendicular to the height direction Z and the thickness direction Y.

[0064] Figure 2 FIG. 1 shows a top view of the door opening device 100 provided in an embodiment of the present application with the cover plate 166 removed. Figure 3 An exploded view of the door opening device 100 provided in an embodiment of the present application is shown. Figure 2 and Figure 3 As shown, in some embodiments, the door opening device 100 includes: a shell 160, a driving member 110, a first transmission member 130, a first transmission gear 142, a second transmission gear 144 and a door opening member 150, the driving member 110 and the first transmission member 130 are installed on the shell 160, the driving member 110 is transmission-connected to the first transmission member 130, and the first transmission member 130 has a first tooth portion 131; the first transmission gear 142 is transmission-connected to the first tooth portion 131; the first transmission gear 142 is coaxially arranged with the second transmission gear 144, and the door opening member 150 has a second tooth portion 152 meshing with the second transmission gear 144.

[0065] The shell 160 can be the installation base of the entire door opening device 100. The driving member 110, the first transmission member 130, the second transmission member 140 and the door opening member 150 are all installed on the shell 160, so that the door opening device 100 becomes a whole. In the process of assembling the door opening device 100 to the box body 210, the shell 160 can be directly assembled on the box body 210.

[0066] The housing 160 includes a base 164 and a cover plate 166. The cover plate 166 is covered on the base 164 to form a receiving chamber with the base 164, so that the driving member 110, the first transmission member 130, the second transmission member 140 and the door opening member 150 can be installed in the receiving chamber. The receiving chamber is a substantially closed chamber, which can reduce the entry of impurities into the receiving chamber and affect the transmission between the driving member 110, the first transmission member 130, the first transmission gear 142, the second transmission gear 144 and the door opening member 150.

[0067] The coaxial arrangement of the first transmission gear 142 and the second transmission gear 144 means that the first transmission gear 142 and the second transmission gear 144 can be connected to the same transmission shaft. After the first transmission member 130 is transmitted with the first transmission gear 142, the first transmission gear 142 can be transmitted to the second transmission gear 144, and then transmitted to the door opening member 150 through the second transmission gear 144.

[0068] During the process of the driving member 110 transmitting power to the door opening member 150, the driving member 110 drives the first transmission member 130 to move, the first transmission member 130 engages with the first transmission gear 142, and transmits power to the first transmission gear 142. The first transmission gear 142 is coaxially arranged with the second transmission gear 144, and transmits power to the second transmission gear 144. The second transmission gear 144 engages with the second tooth portion 152 of the door opening member 150, thereby transmitting power to the door opening member 150, so that the door opening member 150 can open the door body 220.

[0069] Among them, at least one of the first transmission gear 142 and the second transmission gear 144 is an incomplete gear, and only the first transmission gear 142 can be an incomplete gear, only the second transmission gear 144 can be an incomplete gear, or both the first transmission gear 142 and the second transmission gear 144 can be incomplete gears.

[0070] Since at least one of the first transmission gear 142 and the second transmission gear 144 is an incomplete gear, for the convenience of description, the first transmission gear 142 is taken as an example to briefly describe the transmission process. In the process where the first transmission member 130 drives the first transmission gear 142 to rotate, since the first transmission gear 142 is an incomplete gear, in the process where the first tooth portion 131 drives the first transmission gear 142 to rotate, after the tooth surface of the first transmission gear 142 rotates, the first transmission gear 142 disengages from the first tooth portion 131, so that the first transmission member 130 can no longer drive the first transmission gear 142 to rotate, and further the second transmission gear 144 can no longer drive the door opening member 150 to move, so that the door opening member 150 will no longer move. In this way, the stroke of the door opening member 150 extending out of the box body 210 can be controlled.

[0071] Similarly, if the second transmission gear 144 is an incomplete gear, when the second transmission gear 144 rotates driven by the first transmission gear 142, if the tooth surface of the second transmission gear 144 rotates to disengage from the second tooth portion 152, the second transmission gear 144 cannot transmit power to the door opening member 150, and the door opening member 150 loses power and stops moving.

[0072] Of course, when both the first transmission gear 142 and the second transmission gear 144 are incomplete gears, the first transmission gear 142 is disengaged from the first tooth portion 131 or the second transmission gear 144 is disengaged from the second tooth portion 152, so that the transmission relationship between the driving member 110 and the door opening member 150 is disconnected, and the driving member 110 cannot drive the door opening member 150 to move. After the door opening member 150 moves a certain distance, it stops moving, so that the stroke of the door opening member 150 can be controlled, and then the opening angle of the door body 220 can be controlled, thereby improving the movement experience.

[0073] Among them, the transmission connection between the first tooth portion 131 of the first transmission member 130 and the first transmission gear 142 means that the first tooth portion 131 and the first transmission gear 142 realize transmission by meshing. When no transmission is transmitted, the first tooth portion 131 and the first transmission gear 142 may be in a meshing state or not, and it is sufficient to ensure that the first tooth portion 131 and the first transmission gear 142 can mesh and transmit.

[0074] The meshing of the second transmission gear 144 and the second tooth portion 152 means that the second tooth portion 152 and the second transmission gear 144 always remain in meshing state. That is, in the transmission process or the non-transmission process, the second transmission gear 144 and the second tooth portion 152 are always meshing.

[0075] Figure 4 1 shows a top view of the door opening device 100, Figure 5 for Figure 4 The local enlarged view of D in the middle, such as Figure 4 and Figure 5 As shown, in the embodiment of the present application, the first transmission gear 142 or the second transmission gear 144 is provided with a first clamping portion 182, and the base 164 is provided with a second clamping portion 184. When the first tooth portion 131 and the first transmission gear 142 are disengaged from transmission, the first clamping portion 182 and the second clamping portion 184 are clamped.

[0076] The first tooth portion 131 and the first transmission gear 142 are out of transmission, which means that the first tooth portion 131 does not drive the first transmission gear 142 to rotate. It can be that the first tooth portion 131 and the first transmission gear 142 are out of mesh, or the first tooth portion 131 and the first transmission gear 142 are meshed but not transmitted. Since the first tooth portion 131 and the first transmission gear 142 are out of transmission, the driving member 110 will not drive the door opening member 150 to extend out of the box body 210. In this case, the door opening member 150 may move under the action of other external forces, causing the second transmission gear 144 and the second tooth portion 152 to have misaligned teeth, resulting in the length of the door opening member 150 extending out of the box body 210 being affected.

[0077] In the embodiment of the present application, the second tooth portion 152 and the second transmission gear 144 are always meshed, and the first clamping portion 182 and the second clamping portion 184 are clamped. If the door opening member 150 is subjected to other external forces, since the first tooth portion 131 is meshed with the second transmission gear 144, the external force applied to the door opening member 150 will be transmitted to the second transmission gear 144. Since the first clamping portion 182 and the second clamping portion 184 are clamped, the second transmission gear 144 will not rotate relative to the base 164, and the door opening member 150 will not move relative to the base 164, so that the first tooth of the second tooth portion 152 and the first tooth of the second transmission gear 144 can always be meshed, thereby reducing the risk of misaligned teeth between the second tooth portion 152 and the second transmission gear 144, and can ensure that the door opening member 150 extends a distance outside the box body 210, thereby ensuring the opening angle of the door body 220.

[0078] In some embodiments, the first transmission gear 142 is disposed below the second transmission gear 144 , and the first clamping portion 182 is disposed on the first transmission gear 142 .

[0079] Along the height direction Z of the box body 210, the first transmission gear 142 and the second transmission gear 144 are both installed on the base 164, the first transmission gear 142 is arranged below the second transmission gear 144, and the base 164 is arranged below the first transmission gear 142. Since the first transmission gear 142 and the second transmission gear 144 are coaxially arranged, the movements of the first transmission gear 142 and the second transmission gear 144 are synchronized, and the first clamping portion 182 is clamped with the second clamping portion 184, so that the first transmission gear 142 and the second transmission gear 144 are fixed on the base 164 as a whole. The first transmission gear 142 and the second transmission gear 144 as a whole will not rotate relative to the base 164, that is, if the door opening member 150 is subjected to external force, since the first transmission gear 142 and the second transmission gear 144 are integrally fixed to the base 164, the door opening member 150 will no longer move under the action of external force, thereby reducing the risk of misalignment between the door opening member 150 and the second transmission gear 144, and also reducing the risk of misalignment between the first transmission gear 142 and the first tooth portion 131, thereby ensuring the distance that the door opening member 150 extends outside the box body 210, thereby ensuring the opening angle of the door body 220.

[0080] Of course, in some other embodiments, the first clamping portion 182 may also be disposed on the second transmission gear 144 , so that the first transmission gear 142 and the second transmission gear 144 can be fixed to the base 164 as a whole.

[0081] In some embodiments, the first clamping portion 182 is arranged on a side of the first transmission gear 142 away from the second transmission gear 144 , that is, the first clamping portion 182 is arranged on a side of the first transmission gear 142 close to the base 164 , so that the first clamping portion 182 can be easily clamped with the second clamping portion 184 .

[0082] Figure 6 for Figure 4 The cross-sectional view at AA in the middle. Figure 7 for Figure 6 Partially enlarged view of point E. In some embodiments, the first engaging portion 182 has a stop surface 182a, and the second engaging portion 184 is a engaging hole 184a, and along the door opening direction driven by the second transmission gear 144 to open the door opening member 150, the stop surface 182a abuts against the inner wall of the engaging hole 184a.

[0083] The driving member 110 drives the first transmission member 130 to move, and the first transmission member 130 drives the first transmission gear 142 to rotate. Since the first transmission gear 142 and the second transmission gear 144 are coaxially arranged, the first transmission gear 142 and the second transmission gear 144 have the same direction of rotation, and the opening direction of the door opening member 150 driven by the second transmission gear 144 is defined as forward rotation, that is, when the second transmission gear 144 rotates forward, it drives the door opening member 150 to extend out of the box body 210, so that the door opening member 150 can push the door body 220.

[0084] Among them, the opening direction of the door opening member 150 refers to the direction in which the door opening member 150 extends out of the box body 210 and moves toward the door body 220. In the direction of the positive rotation of the second transmission gear 144, when the first transmission member 130 and the first transmission gear 142 are disengaged from the transmission, the stop surface 182a can abut against the inner wall of the clamping hole 184a, which can avoid the positive rotation of the first transmission gear 142 and the second transmission gear 144, thereby reducing the risk of misalignment between the first transmission gear 142 and the first tooth portion 131, and the second transmission gear 144 and the second tooth portion 152, and can ensure the distance that the door opening member 150 extends out of the box body 210, thereby ensuring the opening angle of the door body 220.

[0085] It should be noted that the abutment between the stop surface 182a and the inner wall of the locking hole 184a means that if the door opening member 150 is subjected to an external force so that the first transmission gear 142 and the second transmission gear 144 rotate forward as a whole, the inner wall of the locking hole 184a can abut against the stop surface 182a, thereby preventing the first transmission gear 142 and the second transmission gear 144 from rotating forward, thereby reducing the risk of misalignment between the first output gear and the first tooth portion 131, and between the second transmission gear 144 and the second tooth portion 152, thereby ensuring the distance that the door opening member 150 extends outside the box body 210, thereby ensuring the opening angle of the door body 220.

[0086] The first transmission gear 142 and the second transmission gear 144 are both mounted on the base 164 . The first transmission gear 142 being arranged below the second transmission gear 144 means that the first transmission gear 142 is arranged between the base 164 and the second transmission gear 144 , and the second transmission gear 144 is arranged above the first transmission gear 142 .

[0087] Due to the transmission meshing of the second transmission gear 144 and the door opening member 150, the distances between the second transmission gear 144, the door opening member 150 and the base 164 are substantially the same, and the door opening member 150 moves relative to the base 164. In order to reduce the friction between the door opening member 150 and the base 164, the door opening member 150 and the base 164 may have a certain distance, and the second transmission gear 144 is arranged above the first transmission gear 142, so that the second transmission gear 144 and the base 164 have a certain distance, so that the distances between the second transmission gear 144, the door opening member 150 and the base 164 are substantially the same, which enables the second transmission gear 144 and the door opening member 150 to be stably meshed, thereby improving the transmission stability of the second transmission gear 144 and the door opening member 150.

[0088] Figure 8 FIG. 1 shows a schematic structural diagram of the door opening device 100 from another perspective. Fig. 9 for Figure 8 A partial enlarged view of the position G in the middle. In some embodiments, the second transmission gear 144 has a pushing portion 186, and the first transmission member 130 can act on the pushing portion 186 of the driving member 110, so that the second transmission gear 144 drives the first transmission gear 142 to move away from the base 164, so that the first clamping portion 182 and the second clamping portion 184 are disengaged.

[0089] Due to the positive rotation of the first transmission gear 142 and the second transmission gear 144, the door opening member 150 is extended out of the box body 210, thereby pushing open the door body 220. That is to say, when the first transmission member 130 is engaged with the first transmission gear 142, the first clamping portion 182 and the second clamping portion 184 need to be disengaged to allow the second transmission gear 144 and the second tooth portion 152 to engage, thereby pushing the door opening member 150 to move out of the box body 210, so that the door opening member 150 can push open the door body 220.

[0090] A pushing portion 186 is provided on the second transmission gear 144. When the driving member 110 drives the first transmission member 130 to move, the first transmission member 130 can push the pushing portion 186, so that the first clamping portion 182 and the second clamping portion 184 can be separated, thereby enabling the first transmission gear 142 and the second transmission gear 144 to rotate forward, thereby enabling the door opening member 150 to open the door body 220.

[0091] In some embodiments, the first transmission member 130 is disposed below the second transmission gear 144 , and the pushing portion 186 is disposed on a side of the second transmission gear 144 close to the base 164 .

[0092] The first transmission gear 142 is arranged below the second transmission gear 144, and the first transmission member 130 is also arranged below the second transmission gear 144. When the driving member 110 drives the first transmission member 130 to move, the first transmission member 130 presses against the pushing portion 186, pushing the first transmission gear 142 and the second transmission gear 144 as a whole to move away from the base 164, so that the first clamping portion 182 and the second clamping portion 184 are separated, so that the second transmission gear 144 can rotate forward, so that the door opening member 150 pushes the door body 220 to open.

[0093] In some embodiments, the first transmission member 130 is in the shape of an elongated strip, and the driving member 110 can drive the first transmission member 130 to move in a straight line. In the process of the driving member 110 driving the first transmission member 130 to move in the direction close to the door opening member 150, in the process of the first transmission member 130 moving toward the door opening member 150, the first transmission member 130 abuts against the pushing portion 186, pushing the first transmission gear 142 and the second transmission gear 144 to move upward as a whole, so that the first clamping portion 182 can be disengaged from the clamping hole, thereby unlocking the first transmission gear 142 and the base 164, and the first tooth portion 131 is engaged with the first transmission gear 142. Since the first transmission gear 142 has been unlocked from the base 164, the first transmission gear 142 can rotate, and the second transmission gear 144 can push the door opening member 150 to move, thereby pushing open the door body 220.

[0094] As for the way in which the first transmission member 130 pushes the pushing portion 186, in some embodiments, the pushing portion 186 has a pushing surface 186a and a supporting surface 186b, the supporting surface 186b is spaced apart from the second transmission gear 144, the pushing surface 186a is inclined relative to the second transmission gear 144, and the pushing surface 186a is connected to the supporting surface 186b.

[0095] The pushing surface 186a is arranged toward the first transmission member 130. When the first transmission member 130 moves toward the direction approaching the door opening member 150, the end of the first transmission member 130 first contacts the pushing surface 186a. Since the pushing surface 186a is inclined, the first transmission member 130 slides along the inclined direction of the pushing surface 186a. Since the height of the first transmission member 130 relative to the base 164 is fixed, the pushing portion 186 moves upward under the push of the first transmission member 130, thereby causing the first transmission gear 142 and the second transmission gear 144 to move upward as a whole. When the first transmission member 130 contacts the supporting surface 186b, the first clamping portion 182 has been disengaged from the clamping hole, and the first transmission gear 142 and the base 164 have been unlocked, so that the first transmission gear 142 and the second transmission gear 144 can rotate forward as a whole.

[0096] When the first clamping portion 182 is disengaged from the clamping hole 184a, the first transmission gear 142 and the base 164 are unlocked, and the supporting surface 186b contacts the upper surface of the first transmission member 130, so that the upper surface of the first transmission member 130 can support the pushing portion 186, and further support the first transmission gear 142 and the second transmission gear 144 as a whole.

[0097] The first transmission member 130 continues to move toward the direction approaching the door opening member 150, and the first tooth portion 131 engages with the first transmission gear 142 to push the first transmission gear 142 and the second transmission gear 144 to rotate as a whole, so that the first clamping portion 182 is offset from the clamping hole 184a. Even if the pushing portion 186 has been separated from the upper surface of the first transmission member 130, since the first clamping portion 182 is offset from the clamping hole 184a, the first clamping portion 182 can be supported on the surface of the base 164, and the first transmission gear 142 and the second transmission gear 144 can continue to rotate, thereby pushing the door opening member 150 to continue pushing the door opening member 150.

[0098] When the door opening member 150 opens the door body 220, the driving member 110 drives the first transmission member 130 to move away from the door member 150, so that the first transmission gear 142 and the second transmission gear 144 reverse, thereby driving the door opening member 150 to move away from the door body 220 (the door opening member 150 is reset). When the first clamping portion 182 rotates to the top of the clamping hole 184a, the pushing portion 186 is separated from the first transmission member 130, and the first transmission member 130 moves downward under the action of its own gravity, so that the first clamping portion 182 is clamped into the clamping hole 184a.

[0099] In some embodiments, the first transmission gear 142 and the second transmission gear 144 are an integrated structure, so that the first transmission gear 142 and the second transmission gear 144 can move as a whole. Specifically, the first transmission gear 142 and the second transmission gear 144 can be integrally formed or fixedly connected into an integrated structure, and the specific method is not limited.

[0100] In some embodiments, the first transmission gear 142 and the second transmission gear 144 are in clearance with the transmission shaft. Since the first transmission gear 142 and the second transmission gear 144 need to move up and down, the first transmission gear 142 and the second transmission gear 144 are in clearance with the transmission shaft, so that the first transmission gear 142 and the second transmission gear 144 can move along the axial direction of the transmission shaft as a whole, thereby enabling the first clamping portion 182 to be in and out of engagement with the clamping hole 184a.

[0101] Fig.10 Schematic diagram of the structure of the first transmission gear 142 is shown. Fig.10As shown, in some embodiments, the first clamping portion 182 has a stop surface 182a, a connecting surface 182b and a sliding surface 182c, the stop surface 182a connects the connecting surface 182b and the sliding surface 182c, the connecting surface 182b is connected to the first transmission gear 142 or the second transmission gear 144, and the area of ​​the sliding surface 182c is smaller than the area of ​​the connecting surface 182b; when the driving member 110 drives the door opening member 150 to move through the first transmission gear 142 and the second transmission gear 144, the sliding surface 182c contacts the base 164.

[0102] When the first clamping portion 182 is disengaged from the clamping hole 184a, the sliding surface 182c contacts the surface of the base 164 and can support the first transmission gear 142 during the rotation of the first transmission gear 142. The sliding surface 182c has a smaller area, which can reduce the contact area with the base 164, thereby reducing the friction between the first clamping portion 182 and the base 164, reducing the resistance to the rotation of the first transmission gear 142, and reducing the difficulty of opening the door opening member 150.

[0103] Fig.11 The structure diagram of the door opening member 150 provided in the embodiment of the present application is shown as follows: Figure 2 and Fig.11 As shown, in some embodiments, the second transmission gear 144 is eccentrically arranged, and the door opening member 150 includes a top door portion 154 and a connecting portion 156, and the top door portion 154 and the second tooth portion 152 are both connected to the connecting portion 156, and the distance between the second tooth portion 152 and the connecting portion 156 gradually increases from the direction of the second tooth portion 152 toward the top door portion 154.

[0104] The connecting portion 156 is arranged along the thickness direction Y of the box body 210, the top door portion 154 is arranged at one end of the connecting portion 156 close to the door body 220, and the top door portion 154 can be arranged outside the installation cavity 162. The direction of the second tooth portion 152 toward the top door portion 154 is the thickness direction Y, and the distance between the second tooth portion 152 and the connecting portion 156 gradually increases from the box body 210 toward the door body 220. For the convenience of description, the end of the first tooth pitch close to the top door portion 154 is defined as the first meshing end, and the end away from the top door portion 154 is defined as the second meshing end. The distance between the first meshing end and the connecting portion 156 is greater than the distance between the second meshing end and the connecting portion 156. Similarly, for the convenience of description, the two ends of the tooth surface of the second transmission gear 144 are defined as the first transmission end and the second transmission end, respectively. Since the second transmission gear 144 is eccentrically arranged, the distance between the first transmission end and the transmission shaft is defined as less than the distance between the second transmission end and the transmission shaft.

[0105] The door opening member 150 further includes a first limiting portion 157 , which is disposed on the connecting portion 156 and can abut against the shell 160 to limit the extension distance of the top door portion 154 when the top door portion 154 extends to the box body 210 .

[0106] When the second transmission gear 144 is meshed with the door opening member 150, the first transmission end is meshed with the first meshing end. Since the distance between the first transmission end and the transmission shaft is relatively close, at this time, the torque between the second transmission gear 144 and the door opening member 150 is relatively large, so that the door opening member 150 can break through the door sealing force with a relatively large force and open the door body 220. During the rotation of the second transmission gear 144, the distance between the transmission teeth of the second transmission gear 144 and the transmission shaft gradually increases, so that the torque becomes smaller and the speed increases, thereby enabling the door opening member 150 to open the door body 220 at a relatively large speed.

[0107] That is to say, in the embodiment of the present application, during the process of the second transmission gear 144 driving the door opening member 150 to move, the force of the door opening member 150 changes from large to small, and the moving speed of the door opening member 150 changes from small to large. This arrangement allows the door opening member 150 to break through the door seal with a large force in the early stage of door opening, and to push open the door body 220 at a faster speed in the later stage of door opening. It can be seen that by changing the matching mode of the second transmission gear 144 and the second tooth portion 152, the second transmission gear 144 can achieve a variable speed and force mode in the process of driving the door opening member 150, so that the door body 220 can be opened quickly and the door opening speed can be increased.

[0108] In addition, different driving modes (variable force and variable speed) can be realized through the same set of driving structures, which can reduce the number of components of the entire door opening device 100 and make the layout of the entire door opening device 100 more compact.

[0109] In some embodiments, the second tooth portion 152 is disposed on one side of the connecting portion 156 , and the second transmission gear 144 , the first transmission member 130 and the driving member 110 are all disposed on a side of the second tooth portion 152 away from the connecting portion 156 .

[0110] The second tooth portion 152 is arranged on one side of the connecting portion 156, which means that the second tooth portion 152 is arranged on one side of the connecting portion 156 along the width direction X of the box body 210, and the connecting portion 156 and the second transmission gear 144 are arranged on different sides of the second tooth portion 152. When the connecting portion 156 drives the top door portion 154 to move, the risk of interference between the top door portion 154 and components such as the driving member 110 can be reduced, thereby improving the stability of the entire door opening device 100 in opening the door.

[0111] In some embodiments, the first transmission member 130 is arranged along a set direction, and driven by the driving member 110, the first transmission member 130 moves along the set direction, wherein the set direction is arranged at an angle to the opening direction of the door opening member 150.

[0112] Among them, the set direction is the width direction X of the box body 210, the door opening direction refers to the movement mode of the top door part 154, the door opening direction is the thickness direction Y of the box body 210, and the first transmission member 130 moves along the set direction (the width direction X of the box body 210). The set direction and the door opening direction are set at an angle so that the first transmission member 130 and the top door part 154 can move in different directions, so that the movement directions of the top door part 154 and the first transmission member 130 can be independent of each other, so that the shell 160 can be subjected to forces in different directions, thereby improving the strength of the shell 160.

[0113] In addition, since the first transmission member 130 moves along the width direction X of the box body 210, the first transmission member 130 can drive multiple different first transmission gears 142, and then drive the opening of multiple door bodies 220. Multiple door bodies 220 can be opened through one first transmission member 130, which can reduce the number of components of the door opening device 100. Fig.12 FIG. 1 shows a bottom view of the door opening device 100 with the base 164 removed. Fig.12 As shown, in some embodiments, the first tooth portion 131 includes a plurality of first transmission teeth 131a, the outer peripheral surface of the first transmission gear 142 has second transmission teeth 142a, and is further provided with an avoidance groove 142b, the avoidance groove 142b is arranged close to at least one second transmission tooth 142a, and the first transmission tooth 131a can be arranged in the avoidance groove 142b. The second transmission teeth 142a are arranged on the outer peripheral surface of the second transmission gear 144, and the avoidance groove 142b is also arranged on the outer peripheral surface of the second transmission gear 144, that is, the plurality of second transmission teeth 142a and the avoidance groove 142b are arranged on the outer peripheral surface of the second transmission gear 144, the avoidance groove 142b is arranged close to at least one second transmission tooth 142a, the avoidance groove 142b can be arranged only close to the outermost second transmission tooth 142a, and the avoidance groove 142b can also be arranged between two second transmission teeth 142a, and the specific arrangement position can be determined according to the position of the first transmission tooth 131a of the first transmission member 130.

[0114] The first transmission tooth 131a can be disposed in the avoidance groove 142b. The first transmission tooth 131a can be disposed in the avoidance groove 142b when the first transmission member 130 is in a non-operating state, or the first transmission tooth 131a can be disposed in the avoidance groove 142b when the first transmission member 130 drives the first transmission gear 142 to operate. It should be noted that since there are multiple first transmission teeth 131a, the first transmission tooth 131a disposed in the avoidance groove 142b can be any first transmission tooth 131a.

[0115] During the process of the driving member 110 driving the first transmission member 130 to move, after the multiple first transmission teeth 131a are respectively engaged with the multiple second transmission teeth 142a, after the transmission relationship is established, it can be transmitted to the door opening member 150, so that the door opening member 150 moves in the direction close to the door body 220, and the avoidance groove 142b is arranged close to at least one second transmission tooth 142a, so that the first transmission tooth 131a can be arranged on one side of the second transmission tooth 142a. During the engagement of the first transmission tooth 131a and the second transmission tooth 142a, the tooth surface of the first transmission tooth 131a can be engaged with the tooth surface of the second transmission tooth 142a, thereby reducing the occurrence of tooth collision between the first transmission tooth 131a and the second transmission tooth 142a during the process of establishing the transmission connection, thereby improving the transmission stability of the first transmission tooth 131a and the second transmission tooth 142a, and improving the transmission stability of the entire door opening device 100, thereby improving the door opening effect.

[0116] Fig.13 Shows Fig.12 The local enlarged view of H in the figure is as follows: Fig.12 and Fig.13 As shown, in some embodiments, a plurality of first transmission teeth 131 a are arranged along the extension direction of the first transmission member 130 , and the first transmission teeth 131 a at the endmost portion may be arranged in the avoidance groove 142 b .

[0117] The first transmission member 130 is in the shape of an elongated strip and is arranged along the width direction X of the box body 210. The multiple first transmission teeth 131a are also arranged along the extension direction of the first transmission member 130. The multiple first transmission teeth 131a can be considered as a transmission rack (the multiple first transmission teeth 131a are in the shape of an elongated strip). The first transmission member 130 moves roughly in a straight line, and the first transmission gear 142 is driven to rotate through the engagement of the first transmission teeth 131a and the second transmission teeth 142a.

[0118] Among them, since the multiple first transmission teeth 131a are in the shape of long strips, the first transmission tooth 131a at the end refers to the outermost first transmission tooth 131a, which can be the outermost first transmission tooth 131a, the two outermost first transmission teeth 131a, or the three outermost first transmission teeth 131a. In the embodiments of the present application, the first transmission tooth 131a at the end is taken as the outermost side transmission tooth for explanation. For the convenience of description, the first transmission tooth 131a at the end is defined as the first connecting tooth 131c.

[0119] In other words, the first connecting tooth 131c is the first first transmission tooth 131a or the last first transmission tooth 131a along the extension direction of the first transmission member 130. Before the first transmission member 130 and the first transmission gear 142 establish a transmission connection, the first connecting tooth 131c can be arranged in the avoidance groove 142b.

[0120] When the driving member 110 is in the working state, the first transmission tooth 131a and the second transmission tooth 142a are not engaged. After the driving member 110 is started, the first transmission tooth 131a and the second transmission tooth 142a gradually engage to establish a transmission relationship. Since the first transmission member 130 and the first transmission gear 142 have different movement directions, tooth hitting and tooth interference are likely to occur during the process of establishing the transmission connection.

[0121] In the process of establishing a transmission connection between the first transmission tooth 131a and the second transmission tooth 142a, the first connecting tooth 131c first contacts the second transmission tooth 142a of the first transmission gear 142. Before the plurality of first transmission teeth 131a and the plurality of second transmission teeth 142a establish a transmission connection, the first connecting tooth 131c is arranged in the avoidance groove 142b, so that the first connecting tooth 131c can be arranged on the side of the second transmission tooth 142a close to the avoidance groove 142b. When the driving member 110 drives the first transmission member 130 to move, the first connecting tooth 131c contacts the tooth surface of the adjacent second transmission tooth 142a, thereby realizing transmission. This arrangement allows the first connecting tooth 131c to directly contact the tooth surface of the second transmission tooth 142a, reducing the occurrence of tooth collision between the first transmission tooth 131a and the second transmission tooth 142a during the process of establishing a transmission connection, thereby improving the transmission stability of the first transmission tooth 131a and the second transmission tooth 142a, and improving the transmission stability of the entire door opening device 100, thereby improving the door opening effect.

[0122] The first connecting tooth 131c is arranged in the avoidance groove 142b, so that the first tooth of the multiple first transmission teeth 131a can be connected to the multiple second transmission teeth 142a, so that the multiple first transmission teeth 131a on the entire first transmission member 130 can all be transmitted to the second transmission teeth 142a, which can increase the distance that the door opening member 150 extends outside the box body 210 and increase the opening angle of the door body 220.

[0123] In addition, the first connecting tooth 131c is arranged in the avoidance groove 142b, so that when the door body 220 is opened to the same angle, the length of the first transmission member 130 can be minimized, and the volume occupied by the first transmission member 130 can be reduced, so that the entire door opening device 100 can be miniaturized.

[0124] In some embodiments, the plurality of second transmission teeth 142a are sequentially arranged along the outer circumference of the first transmission gear 142, and the avoidance groove 142b is arranged on the outer circumference of the first transmission gear 142 and close to the outermost second transmission tooth 142a among the plurality of second transmission teeth 142a.

[0125] Among them, since the second transmission tooth 142a is along a partial outer circumference of the first transmission gear 142, that is, the first transmission gear 142 is an incomplete gear, the outermost second transmission tooth 142a of the multiple second transmission teeth 142a refers to the transmission tooth at the end of the multiple second transmission teeth 142a. For the convenience of description, the transmission tooth at the end of the multiple second transmission teeth 142a is defined as the second connecting tooth 142c.

[0126] The avoidance groove 142b is arranged close to the second connecting tooth 142c, that is, the avoidance groove 142b is arranged outside the transmission tooth of the entire first transmission gear 142, and the first transmission tooth 131a (first connecting tooth 131c) can establish a transmission connection with the first transmission gear 142 starting from the second connecting tooth 142c, so that multiple first transmission teeth 131a and multiple second transmission teeth 142a can all engage and rotate, so that the first transmission member 130 and the first transmission gear 142 are both engaged from the first transmission tooth, which can increase the length of the door opening member 150 extending to the box body 210, thereby ensuring the door opening angle.

[0127] In some embodiments, the tooth surface of the second transmission tooth 142a is configured as the side wall of the avoidance groove 142b. The tooth surface of the second transmission tooth 142a is the side wall of the avoidance groove 142b. When the first connecting tooth 131c is arranged in the avoidance groove 142b, the tooth surface of the first connecting tooth 131c can directly contact the tooth surface of the second transmission tooth 142a (the second connecting tooth 142c), thereby driving the first transmission gear 142 to rotate, so that the second transmission gear 144 can drive the door opening member 150 to move. This arrangement can reduce the matching resistance of the first transmission tooth 131a (the first connecting tooth 131c) and the second transmission tooth 142a (the second connecting tooth 142c), and improve the transmission difficulty.

[0128] In some embodiments, a stopper 142d is further provided on the outer circumference of the first transmission gear 142, and the avoidance groove 142b is provided between the stopper 142d and the outermost second transmission tooth 142a among the plurality of second transmission teeth 142a. That is, the avoidance groove 142b is provided between the stopper 142d and the second connecting tooth 142c, and the stopper 142d can limit the first connecting tooth 131c, so that the first connecting tooth 131c can escape from the avoidance groove 142b.

[0129] In some embodiments, the stopper 142d may also be a transmission tooth, and the avoidance groove 142b may be a groove formed by removing the transmission tooth between the stopper 142d and the first connecting tooth 131c.

[0130] like Fig.12 As shown, in some embodiments, the first tooth portion 131 includes a first transmission rack 132 , and the first transmission gear 142 and the driving member 110 are both engaged with the first transmission rack 132 .

[0131] The first transmission rack 132 can be arranged on one side of the first transmission member 130. The first transmission rack 132 is arranged along the width direction X of the box body 210. The first transmission gear 142 and the driving member 110 are both engaged with the first transmission gear 142. The first transmission gear 142 and the driving member 110 can be arranged on the same side of the first transmission rack 132, so that the entire door opening device 100 can be compactly arranged to reduce the occupied space.

[0132] Among them, since the first transmission member 130 is arranged along the width direction X of the box body 210, the first transmission member 130 has two sides close to the door body 220 and away from the door body 220, and the first transmission rack 132 can be arranged on the side of the first transmission member 130 close to the door body 220. This arrangement makes the driving member 110, the first transmission gear 142 and the second transmission gear 144 all arranged on the front side of the first transmission member 130, and the arrangement space of the door opening member 150 can be utilized to arrange the driving member 110, which can reduce the space occupied by the door opening device 100 in the thickness direction Y of the box body 210.

[0133] Fig.14 The schematic diagram of the structure of the door opening device provided by some other embodiments is as follows: Fig.14 As shown, in some other embodiments, the first tooth portion 131 may include a first transmission rack 132 and a second transmission rack 134 disposed opposite to each other, the first transmission gear 142 meshes with the first transmission rack 132 , and the driving member 110 meshes with the second transmission rack 134 .

[0134] The first transmission gear 142 and the driving member 110 cooperate with different sides of the first transmission member 130 respectively, so that when the driving member 110 drives the first transmission member 130 to move, the two sides of the first transmission member 130 are respectively subjected to the forces of the driving member 110 and the first transmission gear 142, and the forces on the two sides of the first transmission member 130 can be balanced as much as possible, thereby improving the stability of the movement of the first transmission member 130.

[0135] Among them, the first transmission rack 132 can be arranged on the side of the first transmission member 130 close to the door body 220, the second transmission rack 134 is arranged on the side of the first transmission member 130 away from the door body 220, and the driving member 110 is arranged on the side of the first transmission member 130 away from the door body 220.

[0136] Since the driver 110 may produce noise during operation, the driver 110 is disposed on a side of the first transmission member 130 away from the door body 220, so that the driver 110 can be disposed away from the door body 220. Since the user will stand at a position roughly close to the door body 220 when taking items out of the refrigerator, the driver 110 is disposed away from the door body 220, which can reduce the noise transmitted to the door body 220, thereby reducing the impact of the driver 110 on the user during operation and improving the user experience.

[0137] In some embodiments, there are two door opening members 150 and two second transmission members 140, and both of the two second transmission members 140 are transmission-connected to the first transmission member 130, and one second transmission member 140 is transmission-connected to one door opening member 150. For the convenience of description, the two second transmission members 140 are defined as a first rotating member 140a and a second rotating member 140b, and the two door opening members 150 are divided into a first door opening member 150a and a second door opening member 150b. It should be noted that the structures of the first rotating member 140a and the second rotating member 140b are the same, and are the same as the structures of the second transmission member 140 described above, which will not be repeated here. Similarly, the structures of the first door opening member 150a and the second door opening member 150b are also the same, and are the same as the structures of the door opening member 150 described above. The following will be combined with Figure 15-18 The following is an exemplary description of how the driving device 100 opens the first door body 221 and the second door body 223. Figure 1-13 An embodiment of the door opening device 100 is shown. Fig.14 Another embodiment of the door opening device 100 is shown. Figure 15-18 In Fig.14 The door opening device 100 shown in the figure is for illustrative purpose to illustrate how the driving device 100 opens the first door body 221 and the second door body 223.

[0138] In some embodiments, the first transmission member 130 can reciprocate linearly between the first door opening member 150a and the second door opening member 150b under the drive of the driving member 110. The first transmission member 130 is in the shape of an elongated strip, and reciprocates between the first door opening member 150a and the second door opening member 150b under the drive of the driving member 110. The first rotating member 140a and the second rotating member 140b can be driven respectively by the same first transmission member 130, and the linear reciprocating motion path is small, which can save power and cost.

[0139] In order to ensure that the first transmission member 130 can move in a straight line, a guide rail can be set on the base 164, and the guide rail is set between the first door opening member 150a and the second door opening member 150b. A slide groove is set on the first transmission member 130. The guide rail and the slide groove cooperate to enable the first transmission member 130 to move back and forth in a straight line between the first door opening member 150a and the second door opening member 150b.

[0140] Fig.15The schematic diagram of the structure of the door opening device 100 installed on the box body 210 is shown, the door opening member 150 includes a first door opening member 150a and a second door opening member 150b, the second transmission member 140 includes a first rotating member 140a and a second rotating member 140b, the door opening device 100 also includes a first detection member 174 and a second detection member 176, the first detection member 174 and the second detection member 176 are both arranged between the first door opening member 150a and the second door opening member 150b, and the first detection member 174 is arranged close to the first door opening member 150a, and the second detection member 176 is arranged close to the second door opening member 150b; the first transmission member 130 has a first detection portion 135 and a second detection portion 136 arranged at intervals, the first detection portion 135 is arranged close to the first door opening member 150a, and the second detection portion 136 is arranged close to the second door opening member 150b;

[0141] The first transmission member 130 is transmission-connected with the first rotating member 140a. The first transmission member 130 can be transmission-connected with the first rotating member 140a at all times, or can be transmission-connected when the first door body 221 needs to be opened, so that the driving member 110 can drive the first door opening member 150a to push open the first door body 221 through the first transmission member 130 and the first rotating member 140a.

[0142] Similarly, the second transmission member 140 is transmission-connected with the second rotating member 140b. The first transmission member 130 can be always rotationally connected with the first rotating member 140a, or it can be transmission-connected when the second door body 223 needs to be opened, so that the driving member 110 can drive the second door opening member 150b to push open the second door body 223 through the first transmission member 130 and the second rotating member 140b.

[0143] The first detecting member 174 and the second detecting member 176 are both arranged between the first door opening member 150a and the second door opening member 150b, and the first detecting member 174 is arranged close to the first door opening member 150a, and the second detecting member 176 is arranged close to the second door opening member 150b; the first transmission member 130 has a first detecting portion 135 and a second detecting portion 136 arranged at intervals, the first detecting portion 135 is arranged close to the first door opening member 150a, and the second detecting portion 136 is arranged close to the second door opening member 150b.

[0144] Since the same driving member 110 drives the first door opening member 150a and the second door opening member 150b to move through the first transmission member 130, the first transmission member 130 needs to be connected to the first rotating member 140a and the second rotating member 140b respectively, that is, the first transmission member 130 moves between the first door opening member 150a and the second door opening member 150b. The first detection member 174 and the second detection member 176 are arranged between the first door opening member 150a and the second door opening member 150b to detect the movement path and current position of the first transmission member 130.

[0145] Regarding the positions of the first detection member 174 and the second detection member 176, they can be set along the width direction X of the box body 210. The distances between the first detection member 174 and the second detection member 176 and the opening of the box body 210 can be the same or different, which is not specifically limited in the present application.

[0146] Fig.16 A schematic diagram showing the structure of the first door 221 being opened is shown. Fig.16 As shown, the driving member 110 can drive the first transmission member 130 to move toward the direction close to the first door opening member 150a so that the first rotating member 140a drives the first door opening member 150a to move. When the first detection member 174 detects the in-position signal of the second detection part 136, the driving member 110 drives the first transmission member 130 to move toward the direction close to the second door opening member 150b so that the second rotating member 140b drives the second door opening member 150b to move.

[0147] When the first door 221 and the second door 223 are both closed in the box 210, the first detector 135 is disposed closer to the first detector 174 than the second detector 176. The second detector 136 is disposed closer to the second detector 176 than the first detector 174.

[0148] The driving member 110 can drive the first transmission member 130 to move toward the first door opening member 150a, and can also drive the first transmission member 130 to move toward the second door opening member 150b. For the sake of convenience of description, the rotation of the driving member 110 driving the first transmission member 130 to move toward the first door opening member 150a is defined as forward rotation, and the driving member 110 driving the first transmission member 130 to move toward the second door opening member 150b is defined as reverse rotation.

[0149] The driving member 110 first drives the first transmission member 130 to move toward the direction close to the first door opening member 150a, and the second detection part 136 moves toward the direction close to the first detection member 174. The driving member 110 drives the first door opening member 150a to move through the first transmission member 130 and the first rotating member 140a, so that the first door opening member 150a pushes open the first door body 221. When the first detection member 174 detects the in-position signal of the second detection part 136, it means that the first door opening member 150a extends out the first set distance, so that the first door body 221 reaches the first set angle, and in this case, it means that the first door body 221 has been opened.

[0150] That is to say, when the first detection member 174 detects the arrival signal of the second detection part 136 , it means that the first door body 221 has been opened, and the arrival signal of the second detection part 136 detected by the first detection member 174 can also be regarded as an opening signal of the first door body 221 .

[0151] That is to say, when the first detection member 174 detects the arrival signal of the second detection part 136, it means that the first door body 221 is opened, and the driving member 110 is controlled to drive the first transmission member 130 to move toward the direction close to the second rotating member 140b to push open the second door body 223. That is, the arrival signal of the second detection part 136 detected by the first detection member 174 is both an opening signal of the first door body 221 and a reversal control signal of the driving member 110.

[0152] After the first door body 221 is opened, the driving member 110 reverses and drives the first transmission member 130 to move toward the direction close to the second door opening member 150b. The first transmission member 130 can be connected to the second rotating member 140b, so that the first transmission member 130 drives the second door opening member 150b to move through the second rotating member 140b to push open the second door body 223.

[0153] Fig.17 A schematic diagram showing the structure of the second door 223 being opened is shown. Fig.17 As shown, when the second detection member 176 detects the in-position signal of the first detection part 135, the driving member 110 drives the first transmission member 130 to move away from the second door opening member 150b, and when the first detection member 174 detects the in-position signal of the first detection part 135 and / or the second detection member 176 detects the in-position signal of the second detection part 136, the driving member 110 stops moving.

[0154] The driving member 110 drives the first transmission member 130 to move toward the direction approaching the second door opening member 150b. When the second detection member 176 detects the arrival signal of the first detection part 135, it means that the second door opening member 150b extends out the second set distance, so that the second door body 223 has reached the second set angle. In this case, it means that the second door body 223 has been opened.

[0155] That is to say, when the second detection member 176 detects the arrival signal of the first detection part 135, it indicates that the second door body 223 has been opened, and the arrival signal of the first detection part 135 detected by the second detection member 176 can also be regarded as the opening signal of the second door body 223. At this time, the driving member 110 can be controlled to rotate forward, so that the first transmission member 130 moves in the direction close to the first door opening member 150a, that is, the arrival signal of the first detection part 135 detected by the second detection member 176 is also the control signal of the driving member 110.

[0156] Fig.18 A schematic diagram showing the structure of the first transmission member 130 resetting is shown, as shown in FIG. Fig.18 As shown, after the second detection member 176 detects the arrival signal of the first detection part 135, it indicates that the second door body 223 is also opened, that is, the driving member 110 drives the first rotating member 140a to move away from the second door opening member 150b, so that the first transmission member 130 can be reset to prepare for the next door opening.

[0157] When the first detection member 174 detects the arrival signal of the first detection part 135 and / or the second detection member 176 detects the arrival signal of the second detection part 136, it means that the first transmission member 130 has been reset to the initial position, and the driving member 110 stops moving to prepare for the next door opening.

[0158] The first detecting member 174 detects the arrival signal of the first detecting portion 135 and the second detecting member 176 detects the arrival signal of the second detecting portion 136. If at least one of the above two conditions is met, it can be indicated that the first transmission member 130 has been reset.

[0159] In the embodiment of the present application, through the cooperation of the first detection member 174 and the second detection member 176, it is possible to detect whether the first door body 221 is opened, whether the second door body 223 is opened, and whether the first transmission member 130 returns to the initial position through the two detection members. The three position states can be detected by detecting the detection members, and the three position states can be detected without three detection members, which can reduce the number of electronic components and reduce the cost of the door opening device 100.

[0160] Fig.19 The structure diagram of the electrical device 10 provided in the embodiment of the present application is shown as follows: Fig.19 As shown, based on the same inventive concept, the embodiment of the present application provides an electrical device 10, including a box body 210, a door body 220 and the above-mentioned door opening device 100, and the door opening device 100 is arranged on the box body 210. Among them, the electrical device 10 can be an electrical appliance such as a refrigerator, a commercial freezer, etc.

[0161] In some embodiments, the electrical device 10 further includes a decorative cover 230, which is connected to the box body 210 and forms a fixed cavity with the box body 210, and the door opening device 100 is disposed in the fixed cavity. The decorative cover 230 can protect the door opening device 100.

[0162] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0163] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0164] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A door opening device, characterized in that: include: Housing (160); A driving member (110) and a first transmission member (130) are mounted on the housing (160); the driving member (110) is transmission-connected to the first transmission member (130); and the first transmission member (130) has a first tooth portion (131); A first transmission gear (142), the first transmission gear (142) being transmission-connected to the first tooth portion (131); a second transmission gear (144) and a door opening member (150), wherein the first transmission gear (142) and the second transmission gear (144) are coaxially arranged, and the door opening member (150) has a second tooth portion (152) meshing with the second transmission gear (144); The first transmission gear (142) or the second transmission gear (144) is provided with a first clamping portion (182), and the housing (160) is provided with a second clamping portion (184). When the first tooth portion (131) and the first transmission gear (142) are out of transmission, the first clamping portion (182) and the second clamping portion (184) are clamped.

2. The door opening device according to claim 1, characterized in that: The first transmission gear (142) is arranged below the second transmission gear (144), the first clamping portion (182) is arranged on the first transmission gear (142), the housing (160) comprises a base (164) and a cover plate (166), and the second clamping portion (184) is arranged on the cover plate (166).

3. The door opening device according to claim 2, characterized in that: The first clamping portion (182) has a stop surface (182a), and the second clamping portion (184) is a clamping hole (184a). Along the door opening direction of the door opening member (150) driven by the second transmission gear (144), the stop surface (182a) abuts against the inner wall of the clamping hole (184a).

4. The door opening device according to claim 2, characterized in that: The second transmission gear (144) has a pushing portion (186), and the first transmission member (130) can act on the pushing portion (186) at the driving member (110) of the driving member (110), so that the second transmission gear (144) drives the first transmission gear (142) to move in a direction away from the housing (160), so that the first clamping portion (182) and the second clamping portion (184) are disengaged.

5. The door opening device according to claim 4, characterized in that: The first transmission member (130) is disposed below the second transmission gear (144), and the pushing portion (186) is disposed on a side of the second transmission gear (144) close to the housing (160).

6. The door opening device according to claim 5, characterized in that: The pushing portion (186) comprises a pushing surface (186a) and a supporting surface (186b), wherein the supporting surface (186b) is spaced apart from the second transmission gear (144), the pushing surface (186a) is inclined relative to the second transmission gear (144), and the pushing surface (186a) is connected to the supporting surface (186b).

7. The door opening device according to claim 4, characterized in that: The first transmission gear (142) and the second transmission gear (144) are of an integrated structure.

8. The door opening device according to claim 4, characterized in that: The first transmission gear (142) and the second transmission gear (144) are clearance-matched with the transmission shaft.

9. The door opening device according to claim 1, characterized in that: The first clamping portion (182) comprises a stop surface (182a), a connecting surface (182b) and a sliding surface (182c); the stop surface (182a) connects the connecting surface (182b) and the sliding surface (182c); the connecting surface (182b) is connected to the first transmission gear (142) or the second transmission gear (144); and the area of ​​the sliding surface (182c) is smaller than the area of ​​the connecting surface (182b); When the driving member (110) drives the door opening member (150) to move via the first transmission gear (142) and the second transmission gear (144), the sliding surface (182c) contacts the housing (160).

10. The door opening device according to any one of claims 1 to 9, characterized in that: The first tooth portion (131) has a plurality of first transmission teeth (131a), and the outer peripheral surface of the first transmission gear (142) has a plurality of second transmission teeth (142a) meshing with the first transmission teeth (131a); The outer peripheral surface of the first transmission part is further provided with an avoidance groove (142b), the avoidance groove (142b) is arranged close to at least one of the second transmission teeth (142a), and the first transmission tooth (131a) can be arranged in the avoidance groove (142b).

11. The door opening device according to any one of claims 1 to 9, characterized in that: At least one of the first transmission gear (142) and the second transmission gear (144) is an incomplete gear.

12. An electrical device, characterized in that: It comprises a box body (210), a door body (220) and a door opening device (100) according to any one of claims 1 to 11, wherein the door opening device (100) is installed on the box body (210).

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