Electric window opener
By designing the driving structure and potentiometer structure in the electric window opener, the opening angle of the window sash is obtained, and the detection difficulties caused by the difficulty of adjusting the rotary potentiometer and the blank stroke in existing electric doors and windows is solved, and convenient and accurate window sash status detection is achieved.
Patent Information
- Application Number
- CN202421533278.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-01
AI Technical Summary
During the installation and use of existing rotary potentiometers for electric doors and windows, the gear position needs to be adjusted accurately. If there is a blank stroke and cannot be read, it is difficult to easily detect the status of electric doors and windows.
An electric window opener is designed, including a driving structure and a potentiometer structure fixed in the window frame. The first resistance value and the second resistance value are obtained through the rotational displacement of the drive structure. The controller determines the opening angle of the window sash based on these values to ensure that even if the first resistance value is 0, the second resistance value can normally reflect the opening angle of the window sash.
It realizes convenient and accurate acquisition of the opening angle of the window sash, avoids detection difficulties caused by blank stroke of the rotating potentiometer, and simplifies the installation and use process.
Smart Images
Figure CN222759607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of doors and windows, and in particular to an electric window opener. Background Art
[0002] With the development of technology, smart home devices such as electric doors and windows have been widely used in people's daily lives. Users can control the opening or closing of electric doors and windows through control terminals such as mobile phones.
[0003] Existing electric doors and windows are provided with a position detection feedback system, which can detect the state of the electric doors and windows, the opening angle of the electric doors and windows, etc. by rotating the potentiometer.
[0004] However, during the use of the rotary potentiometer, the gear of the rotary potentiometer needs to be adjusted to the correct position to avoid exceeding the travel of the rotary potentiometer. The installation requirements of the rotary potentiometer are high, and during the on-site installation, if the travel is blank and the value cannot be read, it is difficult to adjust the gear of the rotary potentiometer. Utility Model Content
[0005] The technical problem solved by the utility model is that the state of electric doors and windows cannot be detected simply and conveniently.
[0006] In order to solve the above technical problems, the utility model provides an electric window opener, comprising: a driving structure fixedly arranged in a window frame, a potentiometer structure and a rocker arm connected between the window frame and the window sash, wherein: the driving structure comprises a driving motor, a driving gear set and an output gear set, the driving motor drives the driving gear set to rotate, and then drives the output gear set to rotate; the potentiometer structure comprises a potentiometer shaft, a potentiometer gear, a circuit board and a first potentiometer and a second potentiometer, the potentiometer gear, the circuit board and the first potentiometer and the second potentiometer are respectively arranged on the potentiometer shaft; the first potentiometer and the second potentiometer are symmetrically fixedly arranged on both sides of the circuit board and connected by wires, the first potentiometer obtains the first resistance value based on the rotational displacement of the driving structure, the second potentiometer obtains the second resistance value based on the rotational displacement of the driving structure, and determines the opening angle of the window sash based on the first resistance value and the second resistance value; the potentiometer gear is meshed with the gear of the output gear set, and drives the potentiometer gear to rotate with the rotation of the output gear set; a controller is arranged on the circuit board, and the controller is suitable for determining the opening angle of the window sash based on the first resistance value and the second resistance value.
[0007] Optionally, the controller is adapted to determine the opening angle of the window sash based on the first resistance value when it is detected that both the first resistance value and the second resistance value change linearly.
[0008] Optionally, the controller is adapted to determine the opening angle of the window sash based on the first resistance value when it is detected that the first resistance value changes linearly and the second resistance value changes nonlinearly.
[0009] Optionally, the electric window opener further includes: an upper cover and a lower cover, wherein the upper cover and the lower cover are engaged with each other to form a cavity, wherein the drive structure and the potentiometer structure are built into the cavity; and the first end of the rocker arm is coupled to the bottom of the lower cover.
[0010] Optionally, the upper cover is fixed to the top of the window frame, one end of the rocker arm is connected to the cavity, and the other end of the rocker arm is arranged on the window sash, and the window sash is opened or closed by driving.
[0011] Optionally, the potentiometer gear, the first potentiometer, the circuit board and the second potentiometer are sequentially arranged on the potentiometer shaft.
[0012] Compared with the prior art, the technical solution of the utility model has the following technical effects:
[0013] When the driving structure drives the window sash of the electric window to rotate, the potentiometer structure can obtain the first resistance value and the second resistance value based on the rotation displacement of the driving structure. The controller can determine the opening angle of the window sash based on the first resistance value and the second resistance value. For a certain opening angle of the window sash, the corresponding first resistance value and second resistance value may not be equal. Therefore, even if the first resistance value is 0 (that is, there is a blank stroke), the second resistance value can normally reflect the opening angle of the window sash, so that the opening angle of the window sash can be obtained conveniently and accurately. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an exploded view of an electric window opener in an embodiment of the utility model;
[0015] Figure 2 It is a structural schematic diagram of a potentiometer structure in an embodiment of the utility model;
[0016] Figure 3 This is a schematic diagram of a working scene of a potentiometer structure in an embodiment of the utility model;
[0017] Figure 4 It is a structural schematic diagram of an electric door and window in an embodiment of the utility model. DETAILED DESCRIPTION
[0018] As described in the background technology, a position detection feedback system can be provided in the electric door and window to obtain the posture and opening angle of the electric door and window. The existing position detection feedback system detects the posture and opening angle of the window sash by rotating the potentiometer. However, if the gear position of the rotary potentiometer is not set to the correct position, the rotary potentiometer will have a blank travel area, which will make it impossible to accurately obtain the posture of the window sash.
[0019] In an embodiment of the utility model, when the driving structure drives the window sash of the electric window to rotate, the potentiometer structure can obtain the first resistance value and the second resistance value based on the rotation displacement of the driving structure. The controller can determine the opening angle of the window sash based on the first resistance value and the second resistance value. For a certain opening angle of the window sash, the corresponding first resistance value and second resistance value may not be equal. Therefore, even if the first resistance value is 0 (that is, there is a blank stroke), the second resistance value can normally reflect the opening angle of the window sash, so that the opening angle of the window sash can be obtained conveniently and accurately.
[0020] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0021] The utility model provides an electric window opener, comprising: a driving structure, a rocker arm, and a potentiometer structure, wherein:
[0022] A driving structure, which can be coupled to the first end of the rocker arm and output torque to the first end of the rocker arm;
[0023] The second end of the rocker arm can be fixed to the window sash of the electric window, and when the driving structure outputs torque, the rocker arm can rotate to drive the window sash to rotate;
[0024] The potentiometer structure is coupled to the driving structure, and can detect the rotational displacement of the driving structure, and then obtain the first resistance value and the second resistance value based on the rotational displacement of the driving structure; the potentiometer structure can obtain the opening angle of the window sash based on the first resistance value and the second resistance value; and, when the driving structure outputs a certain rotational displacement, the potentiometer structure can obtain the first resistance value and the second resistance value with different values.
[0025] Since the first resistance value and the second resistance value obtained by the potentiometer structure are not equal under the same rotational displacement, even when the first resistance value is 0 (indicating that the potentiometer structure is in a blank stroke), the rotational displacement can be determined by the second resistance value, and then the opening angle of the window sash can be determined.
[0026] Reference Figure 1 , an exploded view of an electric window opener in an embodiment of the utility model is given. Figure 2, a schematic diagram of a potentiometer structure in an embodiment of the utility model is given. Figure 3 , a schematic diagram of a working scene of a potentiometer structure in an embodiment of the utility model is given. Figure 4 , a schematic diagram of the structure of an electric door and window in an embodiment of the utility model is given. Figure 1 to Figure 4 Provide explanation.
[0027] like Figure 1 As shown, in the embodiment of the utility model, the electric window opener 2 may further include an upper cover 21 and a lower cover 25, and the upper cover 21 and the lower cover 25 may be engaged to form a cavity. The driving structure and the potentiometer structure 22 may be built into the cavity formed by the upper cover 21 and the lower cover 25. The first end of the rocker arm 26 may be coupled to the bottom of the lower cover 25.
[0028] In a specific implementation, the electric window opener 2 may further include a wire 27 .
[0029] In the embodiment of the utility model, the driving structure may include a driving motor ( Figure 1 ), a driving gear set 28 and an output gear set 24, wherein: a driving motor can be coupled to the driving gear set 28, the driving motor can output a drive to drive the driving gear set 28 to rotate, and then the driving gear set 28 can drive the output gear set 24 to rotate; the output gear set 24 can output a torque under the drive of the driving gear set 28. The output gear set 24 of the driving gear set 28 is coupled to the first end of the rocker arm 26 to drive the rocker arm 26 to move.
[0030] In the embodiment of the utility model, the potentiometer structure 22 may include a potentiometer gear 23 , a first potentiometer 222 , a second potentiometer 223 , a circuit board 221 , and a controller.
[0031] In a specific implementation, the potentiometer gear 23 may mesh with the output gear set 24 in the drive structure;
[0032] The first potentiometer 222 can be sleeved on the shaft of the potentiometer gear 23 and fixed on the first end surface of the circuit board 221; when the output gear set 24 rotates, the first potentiometer 222 can obtain a first resistance value based on the detected rotation displacement;
[0033] The second potentiometer 223 can be sleeved on the shaft of the potentiometer gear 23 and fixed on the second end surface of the circuit board 221; when the output gear set 24 rotates, the second potentiometer 223 can obtain a second resistance value based on the detected rotation displacement;
[0034] The circuit board 221 can be sleeved on the shaft of the potentiometer gear 23. In the projection direction of the first end surface of the circuit board 221 toward the second end surface, the first potentiometer 222 and the second potentiometer 223 are symmetrically arranged based on the axis of the potentiometer gear 23.
[0035] The controller may be disposed on the circuit board 221 , and the controller may determine the opening angle of the window sash 3 based on the first resistance value and the second resistance value.
[0036] like Figure 2 As shown, the first potentiometer 222, the circuit board 221, and the second potentiometer 223 are sequentially sleeved on the shaft of the potentiometer gear 23. Specifically, the first potentiometer 222, the circuit board 221, and the second potentiometer 223 are all provided with through holes, and the shaft of the potentiometer gear 23 passes through the through holes of the first potentiometer 222, the circuit board 221, and the second potentiometer 223. The first potentiometer 222, the circuit board 221, and the second potentiometer 223 can rotate in the same direction as the potentiometer gear 23.
[0037] In a specific implementation, the first potentiometer 222 and the second potentiometer 223 are symmetrically arranged based on the gear axis of the potentiometer, which may mean that: when the first potentiometer 222 and the second potentiometer 223 are both in normal travel, the first resistance value detected by the first potentiometer 222 increases linearly from Rmin until it increases to the resistance value Rmax; the second resistance value detected by the second potentiometer 223 decreases linearly from the resistance value Rmax until it decreases to Rmin. The resistance value Rmax is the resistance value when the window sash 3 is opened to the maximum angle, and Rmin is the resistance value when the window sash 3 is closed, and Rmax>Rmin.
[0038] In a specific implementation, if the controller detects that both the first resistance value and the second resistance value change linearly, the opening angle of the window sash 3 can be determined based on the first resistance value. Alternatively, if the controller detects that both the first resistance value and the second resistance value change linearly, the opening angle of the window sash 3 can be determined based on the second resistance value.
[0039] That is to say, when the first resistance value and the second resistance value both change linearly, it can be determined that the first potentiometer 222 and the second potentiometer 223 are both within the effective stroke, so the first resistance value and the second resistance value can both correctly reflect the rotational displacement of the driving structure. Since the rotational displacement of the driving structure is related to the opening angle of the window sash 3, the opening angle of the window sash 3 can be correctly obtained based on any one of the first resistance value and the second resistance value.
[0040] If the controller detects that any one of the first resistance value and the second resistance value changes non-linearly, the resistance value with linear change is selected to determine the opening angle of the window sash 3 .
[0041] Specifically, if the controller detects that the first resistance value changes nonlinearly and the second resistance value changes linearly, the opening angle of the window sash 3 is determined based on the second resistance value. Alternatively, if the controller detects that the first resistance value changes linearly and the second resistance value changes nonlinearly, the opening angle of the window sash 3 is determined based on the first resistance value.
[0042] When the first resistance value changes nonlinearly, it can be determined that the first potentiometer 222 is in a blank stroke. In this case, since the second resistance value still changes linearly, the opening angle of the window sash 3 can be determined based on the second resistance value.
[0043] When the second resistance value changes nonlinearly, it can be determined that the second potentiometer 223 is in a blank stroke. In this case, since the first resistance value still changes linearly, the opening angle of the window sash 3 can be determined based on the first resistance value.
[0044] Reference Figure 3 Pin A, pin B, pin C and pin D are four output pins of the potentiometer structure 22. The resistance value between pin A and pin B is the first resistance value, and the resistance value between pin A and pin C is the second resistance value.
[0045] When the resistance value between pin A and pin B changes linearly, and the resistance value between pin A and pin B also changes linearly, the opening angle of the window sash 3 can be determined based on the resistance value between pin A and pin B.
[0046] When the resistance value between pin A and pin B changes linearly, and when the resistance value between pin A and pin B changes nonlinearly, the opening angle of the window sash 3 can be determined based on the resistance value between pin A and pin B.
[0047] When the resistance value between pin A and pin B changes nonlinearly, and when the resistance value between pin A and pin B changes linearly, the opening angle of the window sash 3 can be determined based on the resistance value between pin A and pin C.
[0048] When the resistance value between pin A and pin B changes nonlinearly, and the resistance value between pin A and pin B also changes nonlinearly, it can be determined that the potentiometer structure 22 is wrong and the potentiometer structure 22 needs to be reset.
[0049] In summary, it can be seen that using the electric window opener provided by the embodiment of the utility model, even if the first resistance value is 0 (that is, there is a blank stroke), the second resistance value can normally reflect the opening angle of the window sash, thereby being able to conveniently and accurately obtain the opening angle of the window sash.
[0050] The embodiment of the utility model further provides an electric window, comprising the electric window opener 2 provided in any of the above embodiments. The electric window may further comprise a window sash 3 and a window frame 1 .
[0051] like Figure 4 As shown, the electric window opener 2 can be fixed on the window frame 1. The second end of the rocker arm 26 of the electric window opener 2 is fixed on the window sash 3. The window sash 3 can be opened or closed under the drive of the electric window opener 2.
[0052] In a specific implementation, the electric window opener 2 can be fixed on the top of the window frame 1 .
[0053] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.
Claims
1. An electric window opener, characterized in that: include: A driving structure, a potentiometer structure, and a rocker arm connected between the window frame and the window sash are fixedly arranged in the window frame, wherein: The driving structure includes a driving motor, a driving gear set and an output gear set, wherein the driving motor drives the driving gear set to rotate, thereby driving the output gear set to rotate; The potentiometer structure comprises a potentiometer shaft, a potentiometer gear, a circuit board, a first potentiometer and a second potentiometer, wherein the potentiometer gear, the circuit board, the first potentiometer and the second potentiometer are respectively arranged on the potentiometer shaft; The first potentiometer and the second potentiometer are symmetrically fixedly arranged on both sides of the circuit board and connected by wires, the first potentiometer obtains a first resistance value based on the rotational displacement of the driving structure, and the second potentiometer obtains a second resistance value based on the rotational displacement of the driving structure; The potentiometer gear is meshed with the gear of the output gear set, and drives the potentiometer gear to rotate as the output gear set rotates; A controller is disposed on the circuit board, and the controller is adapted to determine an opening angle of the window sash based on the first resistance value and the second resistance value.
2. The electric window opener according to claim 1, characterized in that: The controller is adapted to determine the opening angle of the window sash based on the first resistance value when it is detected that both the first resistance value and the second resistance value change linearly.
3. The electric window opener according to claim 1, characterized in that: The controller is adapted to determine the opening angle of the window sash based on the first resistance value when it is detected that the first resistance value changes linearly and the second resistance value changes nonlinearly.
4. The electric window opener according to any one of claims 1 to 3, characterized in that: It also includes: an upper cover and a lower cover, wherein the upper cover and the lower cover are engaged with each other to form a cavity, and the driving structure and the potentiometer structure are built in the cavity.
5. The electric window opener according to claim 4, characterized in that: The upper cover is fixed on the top of the window frame, one end of the rocker arm is connected to the cavity, and the other end of the rocker arm is arranged on the window sash, and the window sash is opened or closed along with the driving.
6. The electric window opener according to claim 1, characterized in that: The potentiometer gear, the first potentiometer, the circuit board and the second potentiometer are sequentially arranged on the potentiometer shaft.