Electric hinge and door assembly

Abstract

The present application relates to the field of door technology and discloses an electric hinge and door row assembly, wherein the electric hinge includes a first hinge piece, a second hinge piece, and a rotation drive assembly, wherein the first hinge piece includes a first support portion and a second support portion, the first support portion and the second support portion are respectively located at two ends of the first hinge piece, the second hinge piece includes a connecting portion, the connecting portion is located between the first support portion and the second support portion, the two ends of the connecting portion are respectively rotatably connected to the first support portion and the second support portion, the rotation drive assembly is installed on one of the first hinge piece and the second hinge piece, and the rotation drive assembly is connected to the other of the first hinge piece and the second hinge piece to drive the first hinge piece to rotate relative to the second hinge piece. The electric hinge of the present application is subjected to balanced force, will not damage the motor, and can extend the service life of the motor.

Description

Technical Field

[0001] The present application relates to the field of door technology, and in particular to an electric hinge and door assembly. Background Art

[0002] Hinges are widely used in structures such as doors and windows. With technological advancements, electric hinges have gradually emerged. In current electric hinges, a motor is fixed to one hinge piece, and the motor's output shaft drives the other hinge piece. The two hinge pieces are only connected in a single-sided rotational connection, with the motor's output shaft receiving force from one side. This can lead to unbalanced force on the motor's output shaft, which can easily cause it to jam and damage the motor, seriously shortening the lifespan of the electric hinge. Summary of the Invention

[0003] The present application proposes an electric hinge and door assembly to solve the technical problem of unbalanced force on electric hinges in the prior art.

[0004] In order to solve the above technical problems, the present application proposes an electric hinge, including a first hinge piece, a second hinge piece and a rotation drive assembly, the first hinge piece includes a first support part and a second support part, the first support part and the second support part are respectively located at the two ends of the first hinge piece, the second hinge piece includes a connecting part, the connecting part is located between the first support part and the second support part, the two ends of the connecting part are respectively rotatably connected to the first support part and the second support part, the rotation drive assembly is installed on one of the first hinge piece and the second hinge piece, and the rotation drive assembly is connected to the other of the first hinge piece and the second hinge piece to drive the first hinge piece to rotate relative to the second hinge piece.

[0005] Optionally, the rotation drive assembly includes a drive shaft, a motor and a reducer, the motor and the reducer are both installed in the connecting part, the reducer is connected between the drive shaft and the motor, and the drive shaft is connected to the first support part.

[0006] Optionally, a spacer ring, a first chamber and a second chamber are provided in the connecting part, the first chamber and the second chamber are separated by the spacer ring, the first chamber is close to the first support part, the second chamber is close to the second support part, the reducer is installed in the first chamber, the motor is installed in the second chamber, and the motor and the reducer are located on both sides of the spacer ring.

[0007] Optionally, the first supporting portion includes a first fixed shaft, the second supporting portion includes a second fixed shaft, the first fixed shaft passes through one end of the connecting portion and is connected to the driving shaft, and the second fixed shaft is rotatably connected to the other end of the connecting portion.

[0008] Optionally, a first bearing is provided between one end of the connecting portion and the driving shaft, and a second bearing is provided between the other end of the connecting portion and the second fixed shaft.

[0009] Optionally, outer end surfaces of the first bearing and the second bearing away from the connecting portion are respectively provided with oil seal rings.

[0010] Optionally, a fixing hole is provided at one end of the driving shaft close to the first fixing shaft, and the first fixing shaft is fixed in the fixing hole.

[0011] Optionally, the rotation drive assembly is mounted on the first support portion, and a drive shaft of the rotation drive assembly is connected to the connecting portion.

[0012] Optionally, the first hinge piece further includes a first main body, the second hinge piece further includes a second main body, the first supporting portion and the second supporting portion are spaced apart and arranged on the same side of the first main body, and the connecting portion is arranged on one side of the second main body;

[0013] A first buffering and anti-slip pad is provided on the first body, and a second buffering and anti-slip pad is provided on the second body.

[0014] The present application also discloses a door row assembly, including a fixing portion, a door body and the above-mentioned electric hinge, wherein one of the first hinge piece and the second hinge piece is connected to the fixing portion, and the other of the first hinge piece and the second hinge piece is connected to the door body.

[0015] Compared with the prior art, in the electric hinge of the present application, the first supporting part and the second supporting part are respectively located at the two ends of the first hinge piece, and the two ends of the connecting part are respectively rotatably connected to the first supporting part and the second supporting part. Therefore, when the first hinge piece and the second hinge piece rotate relative to each other, both ends are subjected to force, and the force on the first hinge piece and the second hinge piece is more balanced. Therefore, when the driving shaft of the rotating drive assembly drives the first hinge piece and the second hinge piece to rotate, its force is also more balanced, which can avoid the occurrence of phenomena such as jamming and can extend the service life of the electric hinge.

[0016] The door row assembly of the present application also has the above advantages, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1It is a three-dimensional diagram of the electric hinge in the open state in one embodiment of the present application.

[0019] Figure 2 It is a three-dimensional diagram of the electric hinge in the closed state in one embodiment of the present application.

[0020] Figure 3 It is an exploded view of an electric hinge in one embodiment of the present application.

[0021] Figure 4 It is an exploded view of the first hinge piece in one embodiment of the present application.

[0022] Figure 5 It is an exploded view of the second hinge piece and the rotation drive assembly in one embodiment of the present application.

[0023] Figure 6 It is a cross-sectional view of an electric hinge in one embodiment of the present application.

[0024] Figure 7 This is an expanded view of the internal structure of the second hinge piece in one embodiment of the present application.

[0025] Figure 8 It is a three-dimensional diagram of the first hinge piece in one embodiment of the present application.

[0026] Figure 9 It is a three-dimensional diagram of the second hinge piece in one embodiment of the present application.

[0027] Figure 10 This is a connection diagram of the first hinge piece, the second hinge piece and the rotation drive assembly in another embodiment of the present application.

[0028] Figure 11 This is a connection diagram of the first hinge piece, the second hinge piece and the rotation drive assembly in another embodiment of the present application.

[0029] Figure 12 It is a structural diagram of the electric hinge in the open state in one embodiment of the present application.

[0030] Figure 13 This is another structural diagram of the electric hinge in the open state in one embodiment of the present application.

[0031] Figure 14 It is a structural diagram of the electric hinge in the closed state in one embodiment of the present application.

[0032] Figure 15 It is a structural diagram of the door row assembly in one embodiment of the present application.

[0033] Figure 16 It is a structural diagram of a door row assembly in another embodiment of the present application.

[0034] The reference numerals are as shown in the following table:

[0035]

[0036] DETAILED DESCRIPTION

[0037] The following is a further detailed description of the embodiments of the present application in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the embodiments of the present application, and are not intended to limit the embodiments of the present application. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions of the embodiments of the present application, rather than all structures.

[0038] Furthermore, the terms "first," "second," "third," etc., in the specification and claims are used solely for descriptive purposes to distinguish between identical technical features. They are not to be construed as indicating or implying relative importance, or as implicitly specifying the number of technical features, nor do they necessarily describe a sequential or chronological order. The terms are interchangeable where appropriate. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of those features.

[0039] Similarly, the terms "fixed" and "connected" used in the specification and claims should not be construed as limited to direct connections. Thus, the expression "device A is connected to device B" should not be limited to devices or systems in which device A is directly connected to device B. Rather, it means that a path exists between device A and device B, which may include other devices or tools.

[0040] Please refer to Figures 1 to 3 , an embodiment of the present application provides an electric hinge 100, including a first hinge piece 1, a second hinge piece 2 and a rotation drive assembly 3, the first hinge piece 1 includes a first support portion 10 and a second support portion 12, the first support portion 10 and the second support portion 12 are respectively located at two ends of the first hinge piece 1, the second hinge piece 2 includes a connecting portion 20, the connecting portion 20 is located between the first support portion 10 and the second support portion 12, the two ends of the connecting portion 20 are respectively rotatably connected to the first support portion 10 and the second support portion 12, the rotation drive assembly 3 is installed on the second hinge piece 2, and the rotation drive assembly 3 is transmission-connected to the first hinge piece 1 to drive the first hinge piece 1 to rotate relative to the second hinge piece 2.

[0041] When the first hinge piece 1 and the second hinge piece 2 need to be opened, the first hinge piece 1 is driven to rotate relative to the second hinge piece 2 by the rotation drive component 3, so that the first hinge piece 1 and the second hinge piece 2 are in a fully opened state, such as Figure 1 shown.

[0042] When the first hinge piece 1 and the second hinge piece 2 need to be closed, the first hinge piece 1 is driven to rotate in the opposite direction relative to the second hinge piece 2 by the rotation drive component 3, so that the first hinge piece 1 and the second hinge piece 2 are in a closed state. Figure 2 shown.

[0043] It is understandable that, according to actual needs, the rotation drive assembly 3 can also be installed on the first hinge piece 1, and the rotation drive assembly 3 is transmission-connected to the second hinge piece 2 to drive the second hinge piece 2 to rotate relative to the first hinge piece 1.

[0044] Therefore, the rotation driving assembly 3 is installed on one of the first hinge piece 1 and the second hinge piece 2, and the rotation driving assembly 3 is connected to the other of the first hinge piece 1 and the second hinge piece 2 to drive the first hinge piece 1 to rotate relative to the second hinge piece 2.

[0045] Compared with the prior art, in the electric hinge 100 of this embodiment, the first support portion 10 and the second support portion 12 are respectively located at the two ends of the first hinge piece 1, and the two ends of the connecting portion 20 are respectively rotatably connected to the first support portion 10 and the second support portion 12. Therefore, when the first hinge piece 1 and the second hinge piece 2 rotate relative to each other, both ends are subjected to force, and the force on the first hinge piece 1 and the second hinge piece 2 is more balanced. Therefore, when the drive shaft 30 of the rotation drive assembly 3 drives the first hinge piece 1 and the second hinge piece 2 to rotate, its force is also more balanced, which can avoid the occurrence of phenomena such as jamming and can extend the service life of the electric hinge 100.

[0046] In one embodiment, the rotation drive assembly 3 includes a drive shaft 30, a motor 32, and a reducer 34. The reducer 34 is connected between the drive shaft 30 and the motor 32. Both the motor 32 and the reducer 34 are mounted within the connecting portion 20, and the drive shaft 30 is connected to the first support portion 10. The provision of the reducer 34 enables the drive shaft 30 to output a greater torque. Furthermore, the motor 32 and the reducer 34 are both located between the first support portion 10 and the second support portion 12, resulting in a more compact structure and space saving.

[0047] It is understandable that, according to actual needs, the motor 32 can omit the housing, and the reducer 34 can also omit the housing, and the connecting part 20 can serve as a common housing for the motor 32 and the reducer 34. In this way, the structure of the electric hinge 100 is more compact, the volume is smaller, and the output torque is greater.

[0048] Please refer to Figures 4 to 6In one embodiment, the first support portion 10 includes a first fixed shaft 102, and the second support portion 12 includes a second fixed shaft 122. The first fixed shaft 102 passes through one end of the connecting portion 20 and is connected to the drive shaft 30, while the second fixed shaft 122 is rotatably connected to the other end of the connecting portion 20. When the motor 32 is installed in the connecting portion 20 and the motor 32 is activated, the first fixed shaft 102 and the drive shaft 30 rotate relative to the connecting portion 20, and the second fixed shaft 122 also rotates relative to the connecting portion 20, thereby achieving relative rotation between the first hinge 1 and the second hinge 2. Thus, the rotation between the first support portion 10 and the connecting portion 20 is actively driven by the rotation drive assembly 3, while the rotation between the second support portion 12 and the connecting portion 20 is driven. When the first hinge 1 is fixed, the second hinge 2 rotates relative to it. This is equivalent to the drive shaft 30 being fixed, while the motor 32 and the reducer 34 rotate relative to each other, making the force applied to the drive shaft 30 more balanced.

[0049] Specifically, the first support portion 10 also includes a first fixed cavity 104, which is a cylindrical structure. The first fixed shaft 102 is fixedly connected to the first fixed cavity 104. The first fixed shaft 102 and the first fixed cavity 104 are connected by screws. Furthermore, a stepped hole is provided in the first fixed cavity 104. The end with a larger diameter of the stepped hole is located at the end of the first support portion 10 away from the second support portion 12. The first fixed shaft 102 is a corresponding stepped shaft. After the first fixed shaft 102 is inserted into the stepped hole, it is tightened and fixed by screws. An axial mechanical limit can be formed between the stepped hole and the first fixed shaft 102, making the connection between the first fixed shaft 102 and the first fixed cavity 104 more secure. The cylindrical structure of the first fixed cavity 104 facilitates the installation of parts such as the first fixed shaft 102 therein, and is less likely to interfere when the first hinge piece 1 and the second hinge piece 2 rotate relative to each other. The second supporting portion 12 includes a second fixing cavity 124 , and the second fixing shaft 122 is also a stepped shaft. The structure of the second fixing cavity 124 is the same as that of the first fixing cavity 104 , and therefore will not be described in detail.

[0050] In one embodiment, a first bearing 22 is provided between one end of the connecting portion 20 and the drive shaft 30, and a second bearing 24 is provided between the other end of the connecting portion 20 and the second fixed shaft 122. The first bearing 22 facilitates flexible, smooth, and less-worn rotation between the one end of the connecting portion 20 and the drive shaft 30, while the second bearing 24 facilitates flexible, smooth, and less-worn relative rotation between the other end of the connecting portion 20 and the second fixed shaft 122. Preferably, because the drive shaft 30 is connected to the first fixed shaft 102, two first bearings 22 may be provided to provide better support for the first fixed shaft 102 and the drive shaft 30.

[0051] In one embodiment, oil seals 26 are provided on the outer end surfaces of the first bearing 22 and the second bearing 24 away from the connecting portion 20. The oil seals 26 create a closed space within the connecting portion 20, protecting components such as the motor 32 and the reducer 34 within the connecting portion 20. These seals prevent water, dust, and other foreign matter from entering the connecting portion 20, thereby preventing damage to the motor 32 and the reducer 34 and thus preventing them from affecting their normal operation and service life.

[0052] In one embodiment, a fixing hole 302 is provided at one end of the drive shaft 30 proximate to the first fixed shaft 102, and the first fixed shaft 102 is fixedly connected within the fixing hole 302. The first fixed shaft 102 is connected to the drive shaft 30 via the fixing hole 302, providing a convenient connection and a simple structure. Specifically, a first keyway 40 is provided on the first fixed shaft 102, and a second keyway 42 is provided on the inner wall of the fixing hole 302. A connecting key 4 is embedded between the first keyway 40 and the second keyway 42. Once the connecting key 4 is engaged between the first keyway 40 and the second keyway 42, the first fixed shaft 102 is engaged in the fixing hole 302, thereby completing the connection between the first fixed shaft 102 and the drive shaft 30. This provides a simple structure and convenient assembly and disassembly.

[0053] Furthermore, the electric hinge 100 further includes a control circuit board 5, which is electrically connected to the motor 32. The rotation of the motor 32 can be controlled by the control circuit board 5. The motor 32 is a brushless motor, and the circuit of the brushless motor passes through the connecting portion 20 and is connected to the control circuit board 5.

[0054] Please refer to Figure 7 In one embodiment, a spacer ring 202, a first chamber 204, and a second chamber 206 are provided within the connecting portion 20. The first chamber 204 and the second chamber 206 are separated by the spacer ring 202. The first chamber 204 is adjacent to the first support portion 10, and the second chamber 206 is adjacent to the second support portion 12. The reducer 34 is mounted within the first chamber 204, and the motor 32 is mounted within the second chamber 206. The motor 32 and the reducer 34 are located on either side of the spacer ring 202. By providing the first chamber 204 to accommodate the reducer 34 and the second chamber 206 to accommodate the motor 32, and separating the two with the spacer ring 202, the motor 32 and the reducer 34 are structurally independent of each other and do not affect each other, thereby facilitating sealing.

[0055] In a specific embodiment, a plurality of first annular grooves 2042 are provided in the first chamber 204, and the first annular grooves 2042 are circumferentially arranged along the inner wall of the first chamber 204. Correspondingly, a plurality of first annular ridges are provided on the circumferential surface of the reducer 34, and each first annular ridge is stuck in the corresponding first annular groove 2042. In this way, it has a limiting effect on the axial direction of the reducer 34 and can prevent the reducer 34 from shaking along its axial direction.

[0056] A second annular groove 2062 is provided in the second chamber 206, and the second annular groove 2062 is circumferentially arranged along the inner wall of the second chamber 206. Correspondingly, a second annular ridge is provided on the circumferential surface of the motor 32, and the second annular ridge is stuck in the second chamber 206. In this way, it has a limiting effect on the axial direction of the motor 32 and can prevent the motor 32 from shaking along its axial direction.

[0057] In a specific embodiment, the first hinge piece 1 also includes a first main body 16, the second hinge piece 2 also includes a second main body 29, the first support portion 10 and the second support portion 12 are spaced apart and arranged on the same side of the first main body 16, and the connecting portion 20 is arranged on one side of the second main body 29; the first support portion 10, the second support portion 12 and the first main body 16 are integrally formed, and the connecting portion 20 and the second main body 29 are integrally formed.

[0058] It can be understood that, according to actual needs, the first support part 10, the second support part 12 and the first main body 16 can be independent components, which can be connected by screws or welding, etc., and the connecting part 20 and the second main body 29 can be independent components, which can also be connected by screws or welding, etc.

[0059] The connecting portion 20 is a cylindrical structure. The cylindrical structure of the connecting portion 20 facilitates the installation of parts such as the rotation drive assembly 3 therein, and when the first hinge 1 and the second hinge 2 rotate relative to each other, interference is less likely to occur. The connecting portion 20 is located in the middle of the second main body 29, and the height of the connecting portion 20 is less than the height of the second main body 29. In this way, the connecting portion 20 can be inserted between the first support portion 10 and the second support portion 12. Furthermore, when the first hinge 1 and the second hinge 2 are closed, the first main body 16 and the second main body 29 completely overlap, so that the first main body 16 and the second main body 29 can be symmetrically installed on the door and window structure. When the electric hinge 100 is not installed, the first hinge 1 and the second hinge 2 can be closed, and the first main body 16 and the second main body 29 overlap, which can be convenient for storage.

[0060] Please refer to Figure 8 and Figure 9In one embodiment, a first anti-slip cushion 14 is provided on the first body 16, and a second anti-slip cushion 28 is provided on the second body 29. The first anti-slip cushion 14 and the second anti-slip cushion 28 can prevent the first body 16 and the second body 29 from colliding and damaging the first body 16 and the second body 29. When the first hinge 1 and the second hinge 2 are in the closed state, the first body 16 and the second body 29 will contact each other, forming a mechanical limit. When the first hinge 1 and the second hinge 2 are in the open state, they can be limited by angle limit control. Specifically, the first anti-slip cushion 14 and the second anti-slip cushion 28 are arranged on opposite sides of the first body 16 and the second body 29 when they are close to each other. The first anti-slip cushion 14 and the second anti-slip cushion 28 can be made of a material with a cushioning effect, such as rubber, to reduce vibration and noise. The first anti-slip cushion 14 and the second anti-slip cushion 28 are also provided with anti-slip grooves on the side where they are close to each other. The first and second anti-slip cushions 14 and 28 are each provided with a first connection hole (not shown in the figure), and the first and second main bodies 16 and 29 are each provided with a mounting hole 162. The first anti-slip cushion 14 is connected to the mounting hole 162 of the first main body 16 via the first connection hole, and the second anti-slip cushion 28 is connected to the mounting hole 162 of the second main body 29 via the second connection hole 212. The second main body 29 is a box structure, and the control circuit board 5 is installed in the second main body 29. The second main body 29 is provided with a threading hole. After the wiring of the brushless motor passes through the connecting portion 20, it passes through the threading hole and is connected to the control circuit board 5. Specifically, the second main body 29 includes a box body 291 and a cover body 292 provided on the box body 291. The box body 291 and the cover body 292 can be connected by a snap-fit connection or a screw connection. A sealing gasket is also provided between the box body 291 and the cover body 292.

[0061] It is understandable that, according to actual needs, the control circuit board 5 can also be installed on the first body 16 or in the connecting portion 20 .

[0062] like Figure 8 As shown, the first support portion 10 and the second support portion 12 are respectively provided with a hanging ear 126, and the first support portion 10 and the second support portion 12 are connected to the door body or the fixed portion via the hanging ear 126. Specifically, the hanging ear 126 and the first support portion 10 and the second support portion 12 can be integrally formed or connected by welding or other methods.

[0063] like Figure 9 As shown, the connecting portion 20 is provided with a connecting plate 21 along its axial direction, and the connecting plate 21 is provided with a second connecting hole 212. The connecting portion 20 is connected to the door body or the fixing portion through the second connecting hole 212. Specifically, the connecting plate 21 and the connecting portion 20 can be integrally formed or connected by welding or other methods.

[0064] Please refer to Figure 10 In one embodiment, the motor 32 and the reducer 34 are both mounted on the first support portion 10. In this way, the axial lengths of the first support portion 10, the second support portion 12, and the connecting portion 20 can be made shorter, but this will not affect the forces acting on the first hinge piece 1, the second hinge piece 2, and the drive shaft 30. The sizes of the first hinge piece 1 and the second hinge piece 2 can be made smaller, making the maintenance of the motor 32 and the reducer 34 more convenient. Figure 10 As shown, the rotation drive assembly 3 is located above the first hinge piece 1 and the second hinge piece 2.

[0065] Please refer to Figure 11 In one embodiment, the rotation drive assembly 3 can also be installed on the second support portion 12, and its effect is basically the same as that of being installed on the first support portion 10. Figure 11 As shown, the rotation drive assembly 3 is located below the first hinge piece 1 and the second hinge piece 2. The specific installation orientation of the rotation drive assembly 3 can be adjusted according to actual conditions without affecting the use of the electric hinge 100.

[0066] Please refer to Figures 12 to 14 The first hinge piece 1 and the second hinge piece 2 can be opened and closed under the drive of the rotation drive component 3. Figure 12 As shown, the first hinge piece 1 and the second hinge piece 2 are in an open state under the action of the rotation drive assembly 3, that is, the first hinge piece 1 and the second hinge piece 2 are basically in a butt-jointed and parallel state; Figure 13 As shown, the first hinge piece 1 and the second hinge piece 2 are in an open state under the action of the rotation drive component 3, and an angle is formed between the first hinge piece 1 and the second hinge piece 2; Figure 14 As shown, the first hinge piece 1 and the second hinge piece 2 are in a closed state under the action of the rotation drive assembly 3, that is, the first hinge piece 1 and the second hinge piece 2 are basically in a superimposed or overlapped state.

[0067] Please refer to Figure 15 and Figure 16 This embodiment also discloses a door row assembly 1000, comprising a fixing portion 6, a door body 7, and the above-mentioned electric hinge 100. The first hinge piece 1 of the electric hinge 100 is mounted on the fixing portion 6, the second hinge piece 2 is mounted on the door body 7, the first support portion 10 and the second support portion 12 are respectively mounted on the fixing portion 6, and the connecting portion 20 is mounted on the door body 7. Specifically, the first support portion 10 and the second support portion 12 are respectively connected to the fixing portion 6 via hanging ears 126, and the hanging ears 126 and the fixing portion 6 are connected by screws. The connecting portion 20 is fixed to the door body 7 through the second connecting hole 212 on the connecting plate 21, and the second connecting hole 212 and the door body 7 are connected by screws.

[0068] It is understandable that, according to actual conditions, in other embodiments, the first supporting portion 10 and the second supporting portion 12 can be respectively installed on the door body 7 , while the connecting portion 20 is installed on the fixing portion 6 .

[0069] Two electric hinges 100 are arranged between the fixed portion 6 and the door body 7. When the first hinge piece 1 and the second hinge piece 2 are in the open state and the first hinge piece 1 and the second hinge piece 2 are located in the same plane, the door body 7 is in the closed state relative to the fixed portion 6; when the first hinge piece 1 and the second hinge piece 2 are in the open state and an angle is formed between the first hinge piece 1 and the second hinge piece 2, the door body 7 is in the open state relative to the fixed portion 6, and a corresponding angle is also formed between the door body 7 and the fixed portion 6; when the first hinge piece 1 and the second hinge piece 2 are in the closed state, the door body 7 is in the open state relative to the fixed portion 6, and the first hinge piece 1 and the second hinge piece 2 may also fit together. At this time, the first buffer anti-slip pad 14 and the second buffer anti-slip pad 28 can play a buffering and anti-slip role, reduce vibration, reduce noise, and avoid damage to the electric hinge 100. The opening and closing of the door body 7 relative to the fixed part 6 can be completed by driving the motor 32, which is easy to operate. The first hinge piece 1, the second hinge piece 2 and the drive shaft 30 are evenly stressed, and there will be no jamming or damage to the motor 32, which can avoid affecting the life of the electric hinge 100.

[0070] like Figure 15 As shown, the fixed part 6 is a fixed column, and the number of electric hinges 100 is one. The electric hinge 100 is installed between the upper part of the fixed column and the upper part of the door body 7, and the lower part of the fixed column and the lower part of the door body 7 are connected with a door hinge or a driven hinge. It can be understood that, according to actual conditions, an electric hinge 100 can also be connected between the lower part of the fixed column and the lower part of the door body 7, and a door hinge, manual hinge or electric hinge 100 can also be connected between the middle part of the fixed column and the middle part of the door body 7.

[0071] like Figure 16 As shown, the fixed part 6 is a fixed door, and the number of electric hinges 100 is one, which is installed between the upper part of the fixed door and the upper part of the door body 7, and the lower part of the fixed door and the lower part of the door body 7 are connected with a door hinge or a driven hinge. It can be understood that, according to actual conditions, an electric hinge 100 can also be connected between the lower part of the fixed door and the lower part of the door body 7, and a door hinge, manual hinge or electric hinge 100 can also be connected between the middle part of the fixed door and the middle part of the door body 7.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Based on the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present application as above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric hinge, characterized in that: The invention comprises a first hinge piece (1), a second hinge piece (2) and a rotation drive assembly (3), wherein the first hinge piece (1) comprises a first support portion (10) and a second support portion (12), wherein the first support portion (10) and the second support portion (12) are respectively located at two ends of the first hinge piece (1), and the second hinge piece (2) comprises a connecting portion (20), wherein the connecting portion (20) is located between the first support portion (10) and the second support portion (12), and the two ends of the connecting portion (20) are respectively connected to the first support portion (10) and the second support portion (12) for rotation, and the rotation drive assembly (3) is installed on the second hinge piece (2), and the rotation drive assembly (3) is connected to the first hinge piece (1) to drive the first hinge piece (1) to rotate relative to the second hinge piece (2); The rotation drive assembly (3) includes a drive shaft (30), a motor (32) and a reducer (34), wherein the motor (32) and the reducer (34) are both installed in the connecting portion (20), and the reducer (34) is connected between the drive shaft (30) and the motor (32), and the drive shaft (30) is connected to the first support portion (10); a spacer ring (202), a first chamber (204) and a second chamber (206) are provided in the connecting portion (20), wherein the first chamber (204) and the second chamber (206) are separated by the spacer ring (202), the first chamber (204) is close to the first support portion (10), and the second chamber (206) is close to the second support portion (12), and the reducer (34) is installed in the first chamber (204). , the motor (32) is installed in the second chamber (206), and the motor (32) and the reducer (34) are located on both sides of the spacer ring (202); a plurality of first annular grooves (2042) are provided in the first chamber (204), and the first annular grooves (2042) are circumferentially arranged along the inner wall of the first chamber (204); a plurality of first annular ridges are provided on the circumferential surface of the reducer (34), and each first annular ridge is clamped in the corresponding first annular groove (2042); a second annular groove (2062) is provided in the second chamber (206), and the second annular groove (2062) is circumferentially arranged along the inner wall of the second chamber (206); a second annular ridge is provided on the circumferential surface of the motor (32), and the second annular ridge is clamped in the second chamber (206).

2. The electric hinge according to claim 1, characterized in that: The first supporting portion (10) includes a first fixed shaft (102), and the second supporting portion (12) includes a second fixed shaft (122). The first fixed shaft (102) passes through one end of the connecting portion (20) and is connected to the driving shaft (30), and the second fixed shaft (122) is rotatably connected to the other end of the connecting portion (20).

3. The electric hinge according to claim 2, characterized in that: A first bearing (22) is provided between one end of the connecting portion (20) and the driving shaft (30), and a second bearing (24) is provided between the other end of the connecting portion (20) and the second fixed shaft (122).

4. The electric hinge according to claim 3, characterized in that: Oil seal rings (26) are respectively provided on the outer end surfaces of the first bearing (22) and the second bearing (24) away from the connecting portion (20).

5. The electric hinge according to claim 2, characterized in that: A fixing hole (302) is provided at one end of the driving shaft (30) close to the first fixing shaft (102), and the first fixing shaft (102) is fixed in the fixing hole (302).

6. The electric hinge according to any one of claims 1 to 5, characterized in that: The first hinge piece (1) further includes a first main body (16), the second hinge piece (2) further includes a second main body (29), the first supporting portion (10) and the second supporting portion (12) are arranged at intervals on the same side of the first main body (16), and the connecting portion (20) is arranged on one side of the second main body (29); A first buffering and anti-slip pad (14) is provided on the first main body (16), and a second buffering and anti-slip pad (28) is provided on the second main body (29).

7. A door row assembly, characterized in that: It comprises a fixing portion (6), a door body (7) and an electric hinge (100) according to any one of claims 1 to 6, wherein one of the first hinge piece (1) and the second hinge piece (2) is connected to the fixing portion (6), and the other of the first hinge piece (1) and the second hinge piece (2) is connected to the door body (7).

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