Door opening device and electrical equipment

Abstract

The utility model discloses a door opening device and electrical equipment, and belongs to the technical field of electrical equipment. The door opening device comprises a driving part, a first transmission part, a second transmission part and a door opening part, the first transmission part is in transmission connection with the driving part, the first transmission part comprises a first transmission rack and a second transmission rack which are oppositely arranged, and the driving part is meshed with the second transmission rack; the second transmission part comprises a first transmission gear and a second transmission gear, and the first transmission gear is meshed with the first transmission rack; the door opening piece is provided with a second tooth part meshed with the second transmission gear. The first transmission rack and the second transmission rack are located on the different sides of the first transmission part correspondingly, so that the first transmission gear and the driving part are matched with the different sides of the first transmission part correspondingly, and in the process that the driving part drives the first transmission part to act, the two sides of the first transmission part are subjected to acting force of the driving part and the first transmission gear correspondingly; the acting force on the two sides of the first transmission part can be balanced as much as possible, and therefore the moving stability of the first transmission part can be improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrical equipment, and particularly relates to a door opening device and electrical equipment. BACKGROUND

[0002] Refrigerators and other electrical equipment are widely used in daily life, and especially large household appliances such as refrigerators. In order to save cold energy and avoid cold energy leakage, the door body has a certain door sealing force when connected with the cabinet. During the process of opening the door body, the user needs to manually open the door. In order to break through the door seal, a certain force is required to open the door body. This way leads to poor user experience.

[0003] In related technologies, a door opening device is arranged on the electrical equipment, and the door opening device is installed on the cabinet. The door body of the refrigerator can be automatically opened by the door opening part of the door opening device. During the door opening process of the door opening device, the door opening part protrudes from the cabinet to push open the door body. Then in related technologies, the transmission assembly is unstable during transmission. UTILITY MODEL CONTENT

[0004] The application aims to at least solve the technical problem of unstable transmission to some extent. To this end, the application provides a door opening device and electrical equipment.

[0005] In a first aspect, the application provides a door opening device, which comprises:

[0006] A driving part and a first transmission part, the first transmission part is in transmission connection with the driving part, the first transmission part comprises first and second transmission racks arranged oppositely, and the driving part is in meshing connection with the second transmission rack;

[0007] The second transmission part comprises first and second transmission gears, and the first transmission gear is in meshing connection with the first transmission rack;

[0008] A door opening part has a second tooth part in meshing connection with the second transmission gear.

[0009] The first and second transmission racks are respectively located on different sides of the first transmission part, so that the first transmission gear and the driving part are respectively matched with different sides of the first transmission part. During the driving of the first transmission part by the driving part, the two sides of the first transmission part are respectively subjected to the action force of the driving part and the first transmission gear. The action forces on the two sides of the first transmission part can be balanced as much as possible, thereby improving the stability of the movement of the first transmission part.

[0010] In an optional embodiment of this application, the door opening component includes a top door portion and a connecting portion. The top door portion and the second toothed portion are both connected to the connecting portion. The first transmission rack is disposed close to the top door portion, and the second transmission rack is disposed away from the top door portion. The driving component is disposed on the side of the first transmission component away from the top door portion.

[0011] In an optional embodiment of this application, both the first transmission rack and the second transmission rack are arranged along the extension direction of the first transmission member, and the extension direction of the first transmission member is arranged at an angle to the extension direction of the connecting portion.

[0012] In an optional embodiment of this application, there are two door opening components and two second transmission components. The second transmission gears of the two second transmission components are connected to the first transmission rack, and one second transmission component is connected to one door opening component.

[0013] In an optional embodiment of this application, the first transmission member is disposed between the two door opening members and can reciprocate between the two door opening members.

[0014] In an optional embodiment of this application, the second transmission gears of the two second transmission members are respectively disposed at both ends of the first transmission rack, and the driving member is disposed between the two transmission gears.

[0015] In an optional embodiment of this application, the door opening component includes a first door opening component and a second door opening component, the second transmission component includes a first rotating component and a second rotating component, and the door opening device further includes a first detection component and a second detection component. The first detection component and the second detection component are both disposed between the first door opening component and the second door opening component, with the first detection component being disposed close to the first door opening component and the second detection component being disposed close to the second door opening component. The first transmission component has a first detection part and a second detection part disposed at intervals, with the first detection part being disposed close to the first door opening component and the second detection part being disposed close to the second door opening component.

[0016] The driving member can drive the first transmission member to move closer to the first door opening member, so that the first rotating member drives the first door opening member to move. When the first detection member detects the position signal of the second detection unit, the driving member drives the first transmission member to move closer to the second door opening member, so that the second rotating member drives the second door opening member to move.

[0017] When the second detection element detects the position signal of the first detection element, the driving element drives the first transmission element to move away from the second door opening element. When the first detection element detects the position signal of the first detection element and / or the second detection element detects the position signal of the second detection element, the driving element stops operating.

[0018] In an optional embodiment of this application, the door opening device further includes a reset member, one end of which is connected to the door opening member and the other end of which is connected to the base. The reset member can provide a restoring force for the door opening member to reset.

[0019] Secondly, embodiments of this application provide an electrical device, including a housing, a door, and the door opening device described in the first aspect, wherein the door opening device is disposed in the housing.

[0020] The beneficial effects of the electrical equipment provided in the second aspect are the same as those of the door opening device provided in the first aspect, and will not be repeated here.

[0021] In an optional embodiment of this application, the driving member is disposed on the side of the first transmission member away from the door body. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of the electrical equipment provided in the embodiments of this application is shown.

[0024] Figure 2 An exploded view of the door opening device provided in an embodiment of this application is shown.

[0025] Figure 3 A schematic diagram of the door opening device provided in this application embodiment with the cover plate removed is shown.

[0026] Figure 4 A schematic diagram of the door opening component provided in an embodiment of this application is shown.

[0027] Figure 5 It shows Figure 3 The provided door opening device has its base removed from the bottom view.

[0028] Figure 6 It shows Figure 5 A magnified view of a portion of point A in the middle.

[0029] Figure 7 It shows Figure 3 A top view of the provided door opening device from another perspective.

[0030] Figure 8 A schematic diagram of the door opening device installed in the box is shown.

[0031] Figure 9 A schematic diagram of the structure with the first door open is shown.

[0032] Figure 10 A schematic diagram of the structure with the second door open is shown.

[0033] Figure 11 A schematic diagram of the first transmission component resetting structure is shown.

[0034] Figure 12 A schematic diagram of the structure of the electrical equipment provided in the embodiments of this application is shown.

[0035] Reference numerals: 100-Door opening device, 110-Driver, 112-Motor, 114-Transmission wheel, 120-Transmission assembly;

[0036] 130-First transmission component, 131-First tooth, 131a-First transmission tooth, 131c-First connecting tooth, 132-First transmission rack, 134-Second transmission rack, 135-First detection part, 136-Second detection part;

[0037] 140 - Second transmission component, 142 - First transmission gear, 142a - Second transmission tooth, 142b - Clearance groove, 142c - Second connecting tooth, 142d - Stop, 144 - Second transmission gear, 140a - First rotating component, 140b - Second rotating component;

[0038] 150-Door opening component, 152-Second tooth, 154-Top door component, 156-Connecting part, 157-First limiting part, 158-Second limiting part, 150a-First door opening component, 150b-Second door opening component;

[0039] 160-Housing, 162-Mounting cavity, 164-Base, 164a-First stop, 164b-Second stop, 166-Cover plate;

[0040] 172 - Reset component, 174 - First inspection component, 176 - Second inspection component;

[0041] 10-Electrical equipment, 210-Box body, 220-Door body, 221-First door body, 223-Second door body, 230-Decorative cover. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] It should be noted that all directional indications in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0046] Refrigerators and other electrical appliances are widely used in daily life. In particular, large appliances like refrigerators have a certain door sealing force when the door is connected to the cabinet in order to preserve cold energy and prevent cold energy leakage. When opening the door, the user needs to open it manually. In order to break through the door seal, a certain amount of force is required to open the door, which results in a poor user experience.

[0047] In related technologies, a door opening device is installed in the electrical equipment. This device is mounted on the refrigerator body and can automatically open the refrigerator door using its opening mechanism. During the opening process, the opening mechanism protrudes from the refrigerator body, thus pushing the door open. However, in these related technologies, instability in the transmission components can easily occur during the transmission process. The door opening device and electrical equipment provided in this application embodiment can improve the stability during the door opening process.

[0048] This application is described below with reference to the accompanying drawings and specific embodiments:

[0049] Figure 1 A schematic diagram of the structure of the electrical device 10 provided in an embodiment of this application is shown, as follows: Figure 1 As shown, this application embodiment provides a door opening device 100, applied to an electrical appliance 10. The electrical appliance 10 includes a housing 210 and a door 220 rotatably connected to the housing 210. The door opening device 100 can be installed on the housing 210 of the electrical appliance 10 and can open the door 220 of the electrical appliance 10. The door opening device 100 provided in this application embodiment can improve the stability of the movement of the first transmission member 130.

[0050] The door opening device 100 can be positioned close to or away from the rotational connection point between the refrigerator body 210 and the door body 220. The location of the door opening device 100 is not limited, as long as it can open the door body 220. The refrigerator body 210 is roughly rectangular. For ease of description, the height, width, and thickness directions are defined. The height direction is the vertical direction of the refrigerator in use, the thickness direction is the direction from the refrigerator body 210 towards the door body 220, and the width direction is perpendicular to both the height and thickness directions.

[0051] Figure 2 and Figure 3 In this embodiment, the door opening device 100 includes: a driving member 110, a first transmission member 130, a second transmission member 140, and a door opening member 150. The first transmission member 130 is connected to the driving member 110 in a transmission manner. The first transmission member 130 includes a first transmission rack 132 and a second transmission rack 134 arranged opposite to each other. The driving member 110 meshes with the second transmission rack 134. The second transmission member 140 includes a first transmission gear 142 and a second transmission gear 144. The first transmission gear 142 meshes with the first transmission rack 132. The door opening member 150 has a second tooth 152 that meshes with the second transmission gear 144.

[0052] The first transmission component 130 and the second transmission component 140 together form the transmission assembly 120 of the entire door opening device 100. The transmission assembly 120 includes the first transmission component 130 and the second transmission component 140. In addition, it may include other structures, which are not specifically limited in this application embodiment.

[0053] The engagement of the first tooth 131 of the first transmission member 130 with the first transmission gear 142 means that the first tooth 131 and the first transmission gear 142 achieve transmission through engagement. When not in operation, the first tooth 131 and the first transmission gear 142 may or may not be in an engaged state, as long as the first tooth 131 and the first transmission gear 142 can engage and transmit power.

[0054] Similarly, the meshing of the second transmission gear 144 and the second tooth 152 means that the second tooth 152 and the second transmission gear 144 achieve transmission through meshing. When not transmitting, the second tooth 152 and the second transmission gear 144 can be in a meshing state or not in a meshing state, as long as the meshing transmission of the second tooth 152 and the second transmission gear 144 can be guaranteed.

[0055] 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 drives the first transmission gear 142, the first transmission gear 142 can drive to the second transmission gear 144, and then drive to the door opening member 150 through the second transmission gear 144.

[0056] During the process of the drive member 110 transmitting power to the door opening member 150, the drive member 110 drives the first transmission member 130 to move. The first transmission member 130 meshes with the first transmission gear 142, transmitting power to the first transmission gear 142. The first transmission gear 142 and the second transmission gear 144 are coaxially arranged, transmitting power to the second transmission gear 144. The second transmission gear 144 meshes with the second tooth 152 of the door opening member 150, thereby transmitting power to the door opening member 150, enabling the door opening member 150 to open the door body 220.

[0057] Among them, at least one of the first transmission gear 142 and the second transmission gear 144 is an incomplete gear. It can be that only the first transmission gear 142 is an incomplete gear, or only the second transmission gear 144 is an incomplete gear, or both the first transmission gear 142 and the second transmission gear 144 are incomplete gears.

[0058] Since at least one of the first transmission gear 142 and the second transmission gear 144 is an incomplete gear, for ease of description, taking the first transmission gear 142 as an example of an incomplete gear, the transmission process is briefly described as follows: During the process of the first transmission member 130 driving the first transmission gear 142 to rotate, since the first transmission gear 142 is an incomplete gear, during the process of the first tooth 131 driving the first transmission gear 142 to rotate, when the tooth surface of the first transmission gear 142 rotates, the first transmission gear 142 disengages from the first tooth 131, so that the first transmission member 130 can no longer drive the first transmission gear 142 to rotate, and thus the second transmission gear 144 cannot 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 210 can be controlled.

[0059] Similarly, if the second transmission gear 144 is an incomplete gear, when the second transmission gear 144 rotates under the drive of the first transmission gear 142, if the tooth surface of the second transmission gear 144 rotates to the point that it disengages from the second tooth 152, the second transmission gear 144 will be unable to drive the door opening member 150, thereby causing the door opening member 150 to lose power and stop operating.

[0060] Of course, when both the first transmission gear 142 and the second transmission gear 144 are incomplete gears, the first transmission gear 142 disengages from the first tooth 131 or the second transmission gear 144 disengages from the second tooth 152, thus breaking the transmission relationship between the drive member 110 and the door opening member 150. The drive member 110 cannot drive the door opening member 150 to move. After the door opening member 150 moves a certain distance, it stops moving. The stroke of the door opening member 150 can be controlled, and thus the opening angle of the door 220 can be controlled, improving the user experience.

[0061] In some embodiments, the door opening device 100 may include a housing 160, which may serve as the mounting base for the entire door opening device 100. The housing 160 has a mounting cavity 162, in which the drive member 110, the first transmission member 130, the second transmission member 140, and the door opening member 150 are all mounted, making the door opening device 100 a single unit. During the assembly of the door opening device 100 to the housing 210, the housing 160 can be directly assembled onto the housing 210.

[0062] Specifically, the housing 160 may include a base 164 and a cover plate 166, which are connected to form a mounting cavity 162. The drive member 110, the first transmission member 130, the second transmission member 140, and the door opening member 150 can be mounted on the base 164. During assembly, the drive member 110, the first transmission member 130, the second transmission member 140, and the door opening member 150 can be mounted on the base 164 first, and then the cover plate 166 can be placed on the base 164 to form the mounting cavity 162.

[0063] The first transmission rack 132 and the second transmission rack 134 are located on different sides of the first transmission member 130, so that the first transmission gear 142 and the driving member 110 respectively cooperate with different sides of the first transmission member 130. During the process of driving the first transmission member 130, the two sides of the first transmission member 130 are subjected to the forces of the driving member 110 and the first transmission gear 142, respectively. The forces on both 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.

[0064] In some embodiments, the first transmission gear 142 is disposed below the second transmission gear 144. Both the first transmission gear 142 and the second transmission gear 144 are mounted on the housing 160. The first transmission gear 142 being disposed below the second transmission gear 144 means that the first transmission gear 142 is disposed between the base 164 and the second transmission gear 144, and the second transmission gear 144 is disposed above the first transmission gear 142.

[0065] Since the second transmission gear 144 meshes with the door opening member 150, the distances between the second transmission gear 144, the door opening member 150, and the base 164 are basically the same. 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 can have a certain distance. The second transmission gear 144 is located above the first transmission gear 142, so that the second transmission gear 144 and the base 164 have a certain distance, and the distances between the second transmission gear 144 and the door opening member 150 and the base 164 are approximately the same. This allows the second transmission gear 144 and the door opening member 150 to mesh stably, thereby improving the stability of the transmission between the second transmission gear 144 and the door opening member 150.

[0066] Figure 4 A schematic diagram of the structure of the door opening component 150 provided in an embodiment of this application is shown. Figure 4As shown, in some embodiments, the door opening member 150 includes a top door portion 154 and a connecting portion 156. The top door portion 154 and the second toothed portion 152 are both connected to the connecting portion 156. The first transmission rack 132 is disposed close to the top door portion 154, and the second transmission rack 134 is disposed away from the top door portion 154. The driving member 110 is disposed on the side of the first transmission member 130 away from the top door portion 154.

[0067] The top door portion 154 is used to open the door body 220. Specifically, the top door portion 154 is located on the side of the base 164 near the door body 220. The driving member 110 is located on the side of the first transmission member 130 away from the top door portion 154. This means the driving member 110 is located on the side of the first transmission member 130 away from the door body 220. Since the driving member 110 may generate noise during operation, positioning it away from the door body 220 allows it to be positioned further away from the door body 220. Because users typically stand roughly at the door body 220 when removing items from the refrigerator, positioning the driving member 110 away from the door body 220 reduces noise transmitted to the door body 220, thus minimizing the impact of the driving member 110 on the user during operation and improving the user experience.

[0068] In some embodiments, the first transmission rack 132 and the second transmission rack 134 are both arranged along the extension direction of the first transmission member 130, and the extension direction of the first transmission member 130 is arranged at an angle to the extension direction of the connecting portion 156.

[0069] The first transmission member 130 extends in the width direction of the housing 210, and the connecting part 156 extends in the thickness direction of the housing 210. The first transmission member 130 moves in a set direction (the width direction of the housing 210). The extension direction of the first transmission member 130 and the extension direction of the connecting part 156 are set at an angle so that the first transmission member 130 and the top door 154 can move in different directions, so that the movement directions of the top door 154 and the first transmission member 130 can be independent of each other, so that the housing 160 can be subjected to forces in different directions, thereby improving the strength of the housing 160.

[0070] In addition, since the first transmission member 130 moves along the width direction of the housing 210, the first transmission member 130 can drive multiple different first transmission gears 142, thereby driving the opening of multiple doors 220. Multiple doors 220 can be opened by one first transmission member 130, which can reduce the number of parts of the door opening device 100.

[0071] Figure 5 It shows Figure 3 The provided door opening device 100 is shown in a bottom view without the base 164. (Example) Figure 5As shown, in some embodiments, the first tooth portion 131 includes a plurality of first transmission teeth 131a, and the outer peripheral surface of the first transmission gear 142 has second transmission teeth 142a and is also provided with a clearance groove 142b. The clearance groove 142b is disposed near at least one second transmission tooth 142a, and the first transmission teeth 131a may be disposed in the clearance groove 142b. The second transmission teeth 142a are disposed on the outer peripheral surface of the second transmission gear 144, and the clearance groove 142b is also disposed on the outer peripheral surface of the second transmission gear 144. That is, the plurality of second transmission teeth 142a and the clearance groove 142b are all disposed on the outer peripheral surface of the second transmission gear 144, and the clearance groove 142b is disposed near at least one second transmission tooth 142a. The clearance groove 142b may be disposed only near the outermost second transmission tooth 142a, or it may be disposed between two second transmission teeth 142a. The specific placement position can be determined according to the position of the first transmission teeth 131a of the first transmission member 130.

[0072] The first transmission tooth 131a can be disposed in the clearance groove 142b. This can be either when the first transmission member 130 is not in operation, in which case the first transmission tooth 131a is disposed in the clearance groove 142b, or when the first transmission member 130 drives the first transmission gear 142 to move, in which case the first transmission tooth 131a is disposed in the clearance groove 142b. It should be noted that since there are multiple first transmission teeth 131a, any one of the first transmission teeth 131a disposed in the clearance groove 142b can be used.

[0073] During the process of the driving component 110 driving the first transmission component 130 to move, after the multiple first transmission teeth 131a mesh with the multiple second transmission teeth 142a respectively and establish a transmission relationship, they can be transmitted to the door opening component 150, causing the door opening component 150 to move towards the door body 220. The clearance groove 142b is set close to at least one second transmission tooth 142a, so that the first transmission tooth 131a can be set on one side of the second transmission tooth 142a. During the meshing of the first transmission tooth 131a and the second transmission tooth 142a, the tooth surface of the first transmission tooth 131a can mesh with the tooth surface of the second transmission tooth 142a, reducing the occurrence of tooth breakage between the first transmission tooth 131a and the second transmission tooth 142a during the establishment of the transmission connection, thereby improving the transmission stability of the first transmission tooth 131a and the second transmission tooth 142a, improving the transmission stability of the entire door opening device 100, and thus improving the door opening effect.

[0074] Figure 6 It shows Figure 5 A magnified view of a portion of point A, as shown below. Figure 5 and Figure 6As shown, in some embodiments, a plurality of first transmission teeth 131a are arranged along the extension direction of the first transmission member 130, and the most end first transmission tooth 131a may be disposed in the clearance groove 142b.

[0075] The first transmission member 130 is elongated and is arranged along the width direction of the housing 210. 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 elongated). The first transmission member 130 moves approximately in a straight line, and drives the first transmission gear 142 to rotate through the meshing of the first transmission teeth 131a and the second transmission teeth 142a.

[0076] Since the multiple first transmission teeth 131a are elongated, the outermost first transmission tooth 131a refers to the outermost first transmission tooth 131a. It can be the outermost first transmission tooth 131a, the outermost two first transmission teeth 131a, or the outermost three first transmission teeth 131a. In the embodiments of this application, the outermost first transmission tooth 131a is used as the outermost side transmission tooth for the description. For ease of description, the outermost first transmission tooth 131a is defined as the first connecting tooth 131c.

[0077] In other words, the first connecting tooth 131c is along the extending direction of the first transmission member 130. The first first transmission tooth 131a or the last first transmission tooth 131a may be located in the clearance groove 142b before the first transmission member 130 and the first transmission gear 142 establish a transmission connection.

[0078] When the drive unit 110 is in the working state, the first transmission gear 131a and the second transmission gear 142a are not meshed. After the drive unit 110 is started, the first transmission gear 131a and the second transmission gear 142a gradually mesh and establish a transmission relationship. Since the first transmission unit 130 and the first transmission gear 142 move in different directions, tooth knocking and tooth collision interference are likely to occur during the process of establishing the transmission connection.

[0079] During 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 multiple first transmission teeth 131a and multiple second transmission teeth 142a establish a transmission connection, the first connecting tooth 131c is set in the clearance groove 142b, which allows the first connecting tooth 131c to be positioned close to the side of the second transmission tooth 142a in the clearance 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 enabling transmission. This configuration allows the first connecting tooth 131c to directly contact the tooth surface of the second transmission tooth 142a, reducing the likelihood of tooth collisions between the first transmission tooth 131a and the second transmission tooth 142a during the establishment of the transmission connection. This improves the transmission stability of the first transmission tooth 131a and the second transmission tooth 142a, enhances the overall transmission stability of the door opening device 100, and thus improves the door opening effect.

[0080] The first connecting tooth 131c is disposed in the clearance groove 142b, so that the first tooth of the plurality of first transmission teeth 131a can be connected to the plurality of second transmission teeth 142a, so that the plurality of first transmission teeth 131a on the entire first transmission member 130 can be connected to the second transmission teeth 142a, thereby increasing the distance that the door member 150 extends out of the box 210 and increasing the opening angle of the door 220.

[0081] In addition, the first connecting tooth 131c is set in the clearance groove 142b, so that when the door body 220 is opened at 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 also be reduced, so that the entire door opening device 100 can be miniaturized.

[0082] In some embodiments, a plurality of second transmission teeth 142a are arranged sequentially along the outer peripheral surface of the first transmission gear 142, and a clearance groove 142b is provided on the outer peripheral surface of the first transmission gear 142 and is located close to the outermost second transmission tooth 142a among the plurality of second transmission teeth 142a.

[0083] Since the second transmission tooth 142a is along part of the outer circumference of the first transmission gear 142, i.e. the first transmission gear 142 is an incomplete gear, the outermost second transmission tooth 142a of the plurality of second transmission teeth 142a refers to the transmission tooth at the very end of the plurality of second transmission teeth 142a. For ease of description, the transmission tooth at the very end of the plurality of second transmission teeth 142a is defined as the second connecting tooth 142c.

[0084] The clearance groove 142b is located close to the second connecting tooth 142c, that is, the clearance groove 142b is located outside the transmission teeth of the entire first transmission gear 142. 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 mesh and rotate, so that the first transmission member 130 and the first transmission gear 142 can mesh starting from the first transmission tooth, which can increase the length of the door opening member 150 extending to the box 210, thereby ensuring the opening angle.

[0085] In some embodiments, the tooth surface of the second transmission tooth 142a is configured as the sidewall of the clearance groove 142b. When the first connecting tooth 131c is positioned within the clearance groove 142b, the tooth surface of the first connecting tooth 131c can directly contact the tooth surface of the second transmission tooth 142a (second connecting tooth 142c), thereby driving the first transmission gear 142 to rotate. This allows the second transmission gear 144 to drive the door opening member 150 to move. This configuration reduces the engagement resistance between the first transmission tooth 131a (first connecting tooth 131c) and the second transmission tooth 142a (second connecting tooth 142c), thus simplifying transmission.

[0086] In some embodiments, the outer peripheral surface of the first transmission gear 142 is further provided with a stop portion 142d, and a clearance groove 142b is disposed between the stop portion 142d and the outermost second transmission tooth 142a among a plurality of second transmission teeth 142a. That is, the clearance groove 142b is disposed between the stop portion 142d and the second connecting tooth 142c, and the stop portion 142d can limit the first connecting tooth 131c, in the case where the first connecting tooth 131c disengages from the clearance groove 142b.

[0087] In some embodiments, the stop portion 142d may also be a transmission tooth, and the clearance groove 142b may be a groove formed after removing the transmission tooth between the stop portion 142d and the first connecting tooth 131c.

[0088] Figure 7 It shows Figure 3 A top view of the provided door opening device 100 from another perspective. (See example...) Figure 7 As shown, in some embodiments, the door opening device 100 further includes a reset member 172. One end of the reset member 172 is connected to the door opening member 150, and the other end is connected to the housing 160. The reset member 172 can provide a restoring force for the door opening member 150 to reset. This allows the first tooth of the door opening member 150 to mesh with the first tooth of the second transmission gear 144, thereby reducing the possibility of misalignment and ensuring the extension length of the door opening member 150, thus ensuring the opening angle.

[0089] Specifically, a first limiting part 157 and a second limiting part 158 ​​can be provided on the door opening member 150, and a first stop part 164a and a second stop part 164b can be provided on the base 164. When the door opening member 150 opens the door body 220, the first limiting part 157 and the first stop part 164a abut against each other, thereby limiting the maximum distance of the door opening member 150 extending. When the door opening member 150 retracts into the base 164, the second limiting part 158 ​​and the second stop part 164b abut against each other, thereby limiting the distance of the door opening member 150 resetting.

[0090] In some embodiments, there are two door opening components 150 and two second transmission components 140. The second transmission gears 144 of the two second transmission components 140 are both connected to the first transmission rack 132. One second transmission component 140 is connected to one door opening component 150.

[0091] In some embodiments, the first transmission member 130 is disposed between the two door opening members 150 and can reciprocate between the two door opening members 150.

[0092] In some embodiments, the first transmission member 130 can reciprocate between the two door opening members 150 under the drive of the drive member 110. The first transmission member 130 is elongated and can drive the two second transmission members 140 respectively under the drive of the drive member 110. The linear reciprocating motion path is small, which can save power and cost.

[0093] To ensure that the first transmission component 130 can move linearly, a guide rail can be set on the base 164 between the two door opening components 150. A sliding groove is set on the first transmission component 130. The first transmission component 130 can move linearly back and forth between the two door opening components 150 through the cooperation of the guide rail and the sliding groove.

[0094] For ease of description, the two door opening components 150 are defined as the first door opening component 150a and the second door opening component 150b, and the two second transmission components 140 are defined as the first rotating component 140a and the second rotating component 140b, as detailed below:

[0095] Figure 8 The diagram shows the structure of the door opening device 100 installed on the housing 210, as shown. Figure 8As shown, in some embodiments, there are two door opening components 150 and two second transmission components 140. Both second transmission components 140 are connected to the first transmission component 130, and each second transmission component 140 is connected to one door opening component 150. For ease of description, the two second transmission components 140 are defined as a first rotating component 140a and a second rotating component 140b, and the two door opening components 150 are defined as a first door opening component 150a and a second door opening component 150b. It should be noted that the structures of the first rotating component 140a and the second rotating component 140b are the same as those of the second transmission component 140 described above, and will not be repeated here. Similarly, the structures of the first door opening component 150a and the second door opening component 150b are also the same as those of the door opening component 150 described above.

[0096] The door opening component 150 includes a first door opening component 150a and a second door opening component 150b; the second transmission component 140 includes a first rotating component 140a and a second rotating component 140b; the door opening device 100 also includes a first detection component 174 and a second detection component 176, both of which are disposed between the first door opening component 150a and the second door opening component 150b, with the first detection component 174 disposed closer to the first door opening component 150a and the second detection component 176 disposed closer to the second door opening component 150b; the first transmission component 130 has a first detection part 135 and a second detection part 136 disposed at intervals, with the first detection part 135 disposed closer to the first door opening component 150a and the second detection part 136 disposed closer to the second door opening component 150b.

[0097] The first transmission component 130 is connected to the first rotating component 140a. The first transmission component 130 can be always connected to the first rotating component 140a, or the first door 221 can be connected when it is necessary to open the door. This allows the driving component 110 to drive the first door opening component 150a to push open the first door 221 through the first transmission component 130 and the first rotating component 140a.

[0098] Similarly, the second transmission member 140 is connected to the second rotating member 140b. This can be either the first transmission member 130 is always rotatably connected to the first rotating member 140a, or the first transmission member 130 is connected to the first rotating member 140a only when the second door 223 needs to be opened. This allows the driving member 110 to drive the second door opening member 150b to push open the second door 223 through the first transmission member 130 and the second rotating member 140b.

[0099] The first detection element 174 and the second detection element 176 are both disposed between the first door opening element 150a and the second door opening element 150b, with the first detection element 174 disposed closer to the first door opening element 150a and the second detection element 176 disposed closer to the second door opening element 150b; the first transmission element 130 has a first detection part 135 and a second detection part 136 disposed at intervals, with the first detection part 135 disposed closer to the first door opening element 150a and the second detection part 136 disposed closer to the second door opening element 150b.

[0100] Since the same driving component 110 drives the first door opening component 150a and the second door opening component 150b to move through the first transmission component 130, the first transmission component 130 needs to be connected to the first rotating component 140a and the second rotating component 140b respectively. That is, the first transmission component 130 moves between the first door opening component 150a and the second door opening component 150b. By setting the first detection component 174 and the second detection component 176 between the first door opening component 150a and the second door opening component 150b, the movement path and current position of the first transmission component 130 can be detected.

[0101] Regarding the positions of the first detection element 174 and the second detection element 176, they can be set along the width direction of the housing 210. The distances between the first detection element 174 and the second detection element 176 and the opening of the housing 210 can be the same or different, and no specific limitation is made in this application.

[0102] Figure 9 A schematic diagram showing the structure of the first door 221 being opened is shown, as follows. Figure 9 As shown, the driving member 110 can drive the first transmission member 130 to move towards 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 arrival signal of the second detection unit 136, the driving member 110 drives the first transmission member 130 to move towards the second door opening member 150b, so that the second rotating member 140b drives the second door opening member 150b to move.

[0103] With both the first door 221 and the second door 223 closed within the housing 210, of the two detection elements 174 and 176, the first detection element 135 is positioned closer to the first detection element 174 than the second detection element 176. Similarly, the second detection element 136 is positioned closer to the second detection element 176 than the first detection element 174.

[0104] The driving member 110 can drive the first transmission member 130 to move towards the first door opening member 150a, or it can drive the first transmission member 130 to move towards the second door opening member 150b. For ease of description, the rotation of the first transmission member 130 driven by the driving member 110 towards the first door opening member 150a is defined as forward rotation, and the rotation of the first transmission member 130 driven by the driving member 110 towards the second door opening member 150b is defined as reverse rotation.

[0105] The driving member 110 first drives the first transmission member 130 to move closer to the first door opening member 150a, and the second detection member 136 moves closer 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 221. When the first detection member 174 detects the arrival signal of the second detection member 136, it means that the first door opening member 150a extends a first predetermined distance, so that the first door 221 reaches a first predetermined angle. In this case, it means that the first door 221 has been opened.

[0106] In other words, when the first detection element 174 detects the arrival signal of the second detection element 136, it indicates that the first door 221 has been opened, and the arrival signal of the second detection element 136 detected by the first detection element 174 can also be regarded as the opening signal of the first door 221.

[0107] In other words, when the first detection element 174 detects the arrival signal of the second detection element 136, it indicates that the first door 221 is open, and controls the drive element 110 to drive the first transmission element 130 to move closer to the second rotating element 140b, so as to push open the second door 223. That is, the arrival signal of the second detection element 136 detected by the first detection element 174 is both the opening signal of the first door 221 and the control signal for the reverse rotation of the drive element 110.

[0108] After the first door 221 is opened, the drive member 110 reverses and drives the first transmission member 130 to move toward 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 223.

[0109] Figure 10 A schematic diagram showing the structure of the second door 223 being opened is shown, as follows. Figure 10As shown, when the second detection element 176 detects the arrival signal of the first detection element 135, the drive element 110 drives the first transmission element 130 to move away from the second door opening element 150b. When the first detection element 174 detects the arrival signal of the first detection element 135 and / or the second detection element 176 detects the arrival signal of the second detection element 136, the drive element 110 stops operating.

[0110] The drive member 110 drives the first transmission member 130 to move closer to the second door opening member 150b. When the second detection member 176 detects the arrival signal of the first detection part 135, it indicates that the second door opening member 150b extends a second set distance, so that the second door body 223 has reached the second set angle. In this case, it indicates that the second door body 223 has been opened.

[0111] In other words, when the second detection element 176 detects the arrival signal of the first detection part 135, it indicates that the second door 223 has been opened. The arrival signal of the first detection part 135 detected by the second detection element 176 can also be regarded as the opening signal of the second door 223. At this time, the drive element 110 can be controlled to rotate forward, so that the first transmission element 130 moves towards the first door opening element 150a. That is, the arrival signal of the first detection part 135 detected by the second detection element 176 is also the control signal for the forward transmission of the drive element 110.

[0112] Figure 11 A schematic diagram of the resetting structure of the first transmission component 130 is shown, as follows: Figure 11 As shown, after the second detection element 176 detects the arrival signal of the first detection element 135, it indicates that the second door 223 is also opened. That is, the driving element 110 drives the first rotating element 140a to move away from the second door opening element 150b, so that the first transmission element 130 can be reset to prepare for the next door opening.

[0113] If the first detection element 174 detects the arrival signal of the first detection unit 135 and / or the second detection element 176 detects the arrival signal of the second detection unit 136, it indicates that the first transmission element 130 has been reset and returned to its initial position, and the drive element 110 stops operating to prepare for the next door opening.

[0114] If at least one of the following two conditions is met, it can be concluded that the first transmission member 130 has been reset.

[0115] In this embodiment of the application, by cooperating with the first detection element 174 and the second detection element 176, it is possible to detect whether the first door 221 is opened, whether the second door 223 is opened, and whether the first transmission element 130 has returned to the initial position. The detection elements can detect three position states, eliminating the need for three detection elements. This reduces the number of electronic components and the cost of the door opening device 100.

[0116] Figure 12 A schematic diagram of the structure of the electrical device 10 provided in an embodiment of this application is shown, as follows: Figure 11 and Figure 12 As shown, based on the same inventive concept, this application provides an electrical appliance 10, including a housing 210, a door 220, and the aforementioned door opening device 100, wherein the door opening device 100 is disposed on the housing 210. The electrical appliance 10 may be an appliance such as a refrigerator or a commercial freezer.

[0117] In some embodiments, the electrical appliance 10 further includes a decorative cover 230, which is connected to the housing 210 and forms a fixed cavity with the housing 210. The door opening device 100 is disposed in the fixed cavity. The decorative cover 230 can protect the door opening device 100.

[0118] In some embodiments, the drive member 110 is disposed on the side of the first transmission member 130 away from the door body 220.

[0119] Since the drive unit 110 may generate noise during operation, positioning it on the side of the first transmission member 130 away from the door 220 allows it to be located further away from the door 220. Because users typically stand roughly at the door 220 when removing items from the refrigerator, positioning the drive unit 110 away from the door 220 reduces noise transmitted to the door, thus minimizing its impact on the user and improving the overall user experience.

[0120] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0121] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0122] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A door opening device, characterized in that, include: A driving member (110) and a first transmission member (130) are connected to the driving member (110). The first transmission member (130) includes a first transmission rack (132) and a second transmission rack (134) arranged opposite to each other. The driving member (110) meshes with the second transmission rack (134). The second transmission component (140) includes a first transmission gear (142) and a second transmission gear (144), wherein the first transmission gear (142) meshes with the first transmission rack (132); The door opening component (150) has a second tooth (152) that meshes with the second transmission gear (144).

2. The door opening device according to claim 1, characterized in that, The door opening component (150) includes a top door portion (154) and a connecting portion (156). The top door portion (154) and the second toothed portion (152) are both connected to the connecting portion (156). The first transmission rack (132) is disposed close to the top door portion (154), and the second transmission rack (134) is disposed away from the top door portion (154). The driving member (110) is disposed on the side of the first transmission member (130) away from the top door portion (154).

3. The door opening device according to claim 2, characterized in that, The first transmission rack (132) and the second transmission rack (134) are both arranged along the extension direction of the first transmission member (130), and the extension direction of the first transmission member (130) is set at an angle to the extension direction of the connecting part (156).

4. The door opening device according to any one of claims 1-3, characterized in that, There are two door opening components (150) and two second transmission components (140). The second transmission gears (144) of the two second transmission components (140) are connected to the first transmission rack (132). One second transmission component (140) is connected to one door opening component (150).

5. The door opening device according to claim 4, characterized in that, The first transmission member (130) is disposed between the two door opening members (150) and can reciprocate between the two door opening members (150).

6. The door opening device according to claim 4, characterized in that, The door opening component (150) includes a first door opening component (150a) and a second door opening component (150b). The second transmission component (140) includes a first rotating component (140a) and a second rotating component (140b). The door opening device (100) further includes a first detection component (174) and a second detection component (176). The first detection component (174) and the second detection component (176) are both disposed between the first door opening component (150a) and the second door opening component (150b). The first detection component (174) is disposed close to the first door opening component (150a), and the second detection component (176) is disposed close to the second door opening component (150b). The first transmission component (130) has a first detection part (135) and a second detection part (136) disposed at intervals. The first detection part (135) is disposed close to the first door opening component (150a), and the second detection part (136) is disposed close to the second door opening component (150b). The driving member (110) can drive the first transmission member (130) to move closer 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 position signal of the second detection unit (136), the driving member (110) drives the first transmission member (130) to move closer to the second door opening member (150b), so that the second rotating member (140b) drives the second door opening member (150b) to move. When the second detection element (176) detects the arrival signal of the first detection element (135), the drive element (110) drives the first transmission element (130) to move away from the second door opening element (150b). When the first detection element (174) detects the arrival signal of the first detection element (135) and / or the second detection element (176) detects the arrival signal of the second detection element (136), the drive element (110) stops operating.

7. The door opening device according to any one of claims 1-3, characterized in that, The first transmission gear (142) is located below the second transmission gear (144).

8. The door opening device according to any one of claims 1-3, characterized in that, The door opening device (100) also includes a reset member (172), one end of which is connected to the door opening member (150) and the other end is connected to the base (164). The reset member (172) can provide a restoring force for the door opening member (150) to reset.

9. An electrical appliance, characterized in that, It includes a housing (210), a door (220), and an opening device (100) as described in any one of claims 1-8, wherein the opening device (100) is disposed on the housing (210).

10. The electrical equipment according to claim 9, characterized in that, The drive member (110) is located on the side of the first transmission member (130) away from the door body (220).

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