Gear box motor and lifting curtain

Abstract

The utility model relates to the technical field of gear box motors, and discloses a gear box motor and a lifting curtain. The gearbox motor comprises a shell, a motor, a temperature sensor and a shielding piece, a containing cavity is formed in the shell, a detection window is formed in the outer side of the shell, and the detection window is communicated with the containing cavity. The motor is arranged in the accommodating cavity, and the motor is also arranged corresponding to the detection window; the speed reducer is arranged in the containing cavity and connected with the motor. The temperature sensor is located in the detection window and abuts against the surface of the motor. The shielding piece is embedded in the detection window and abuts against the temperature sensor so that the temperature sensor can be fixed to the motor. Thus, the temperature sensor can directly detect the temperature of the motor, the detection accuracy of the temperature sensor is improved, the risk that the motor is overheated is avoided, and meanwhile the structural compactness of the gearbox motor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear box motors, and in particular relates to a gear box motor and a lifting curtain. Background Art

[0002] The gearbox motor is an integrated unit of a reducer and a motor. When the gearbox motor is working, it will generate heat. When the working temperature of the motor is too high, the motor will have problems such as reduced speed, reduced torque, reduced power, and burnout. Therefore, it is particularly important to monitor the temperature of the motor.

[0003] In the related technology, the motor and the reducer are both arranged in the casing, the temperature sensor is installed on the surface of the casing, and the temperature sensor is set corresponding to the installation position of the motor. When the temperature sensor detects that the temperature reaches the preset value, the control motherboard immediately stops the motor to avoid adverse effects or even burning of the motor due to overheating.

[0004] However, the temperature sensor is installed on the surface of the casing. On the one hand, the temperature sensor directly obtains the temperature of the casing instead of directly obtaining the temperature of the motor, resulting in low detection accuracy of the temperature sensor and a risk of failure to detect motor overheating in time, and further a risk of failure to control motor shutdown in time; on the other hand, the temperature sensor is exposed to the outside, resulting in poor structural compactness of the gearbox motor. Utility Model Content

[0005] In order to address the deficiencies of the prior art, the utility model provides a gear box motor and a lifting curtain. Since the temperature sensor is in direct contact with the motor, the temperature sensor can directly detect the temperature of the motor, thereby improving the accuracy of the temperature sensor detection, so that the temperature sensor can promptly feed back the motor overheating signal to the control main board, thereby avoiding the risk of motor overheating, and further avoiding the risk of the lifting curtain being damaged due to overheating. At the same time, the space occupied by the gear box motor is reduced, and the structural compactness of the gear box motor is improved.

[0006] The technical effects to be achieved by the utility model are achieved through the following aspects:

[0007] In a first aspect, the utility model provides a gearbox motor, comprising:

[0008] A housing, wherein a receiving cavity is formed inside the housing, and a detection window is formed outside the housing, wherein the detection window is in communication with the receiving cavity;

[0009] A motor is disposed in the accommodating cavity, and the motor is also disposed corresponding to the detection window;

[0010] A reducer is disposed in the accommodating cavity, and the reducer is connected to the motor;

[0011] A temperature sensor is located in the detection window and abuts against the surface of the motor; and

[0012] A shielding member is embedded in the detection window and abuts against the temperature sensor to fix the temperature sensor on the motor.

[0013] In some implementations, a lead hole is opened at one end of the shell, and the lead hole is communicated with the accommodating cavity; the temperature sensor includes a detection part and a transmission line, the detection part is located in the detection window, the detection part is respectively abutted against the surface of the motor and the shielding member, the transmission line is passed through the lead hole, one end of the transmission line is connected to the detection part, and the other end of the transmission line is located outside the shell.

[0014] In some implementations, the detection window is in the shape of an elongated strip, and an extension direction of the detection window is parallel to an extension direction of the housing.

[0015] In some implementations, the detection window is a waist-shaped hole.

[0016] In some implementations, the shielding member is provided with a gripping portion, and the gripping portion is located on the outer side of the housing.

[0017] In some implementations, a cutout groove is formed on the outer side of the shielding member.

[0018] In this implementation, the shielding member is removed by digging out the groove, which improves the convenience of taking out the shielding member, thereby improving the convenience of replacing the temperature sensor.

[0019] In some implementations, the cutout groove is located at one end of the shielding member.

[0020] In some implementations, a snap-off groove is formed on a side wall of the cut-out groove.

[0021] In some implementations, the shielding member is an elastic structure, and the shielding member elastically abuts against the temperature sensor.

[0022] In a second aspect, the utility model provides a lifting curtain, comprising a gear box motor of any of the above-mentioned implementation modes.

[0023] In summary, the utility model has at least the following benefits:

[0024] 1. A detection window is opened on the outer side of the gearbox motor housing, and the temperature sensor is arranged in the detection window. The shielding member is embedded in the detection window, so that the temperature sensor is respectively in contact with the motor and the shielding member, that is, the temperature sensor is clamped between the motor and the shielding member, that is, the temperature sensor is located inside the housing and directly in contact with the motor; since the temperature sensor is in direct contact with the motor, the temperature sensor directly detects the temperature of the motor, which improves the accuracy of the temperature sensor detection, and enables the temperature sensor to promptly feed back the motor overheating signal to the control main board, thereby avoiding the risk of motor overheating.

[0025] 2. Since the temperature sensor and the shielding member are both located within the detection window, the space occupied by the gearbox motor is reduced, thereby improving the structural compactness of the gearbox motor.

[0026] 3. Since the shielding member is embedded in the detection window, the shielding member shields the detection window, thereby preventing external dirt from entering the gearbox motor through the detection window, thereby preventing the external dirt from having a negative impact on the gearbox motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the gearbox motor in some embodiments;

[0028] Figure 2 for Figure 1 A cross-sectional view of the gearbox motor shown;

[0029] Figure 3 for Figure 2 An enlarged schematic diagram of the gearbox motor at A is shown;

[0030] Figure 4 for Figure 1 A schematic diagram of a partial structure of a gearbox motor shown;

[0031] Figure 5 for Figure 1 A schematic structural diagram of a shielding member of a gearbox motor shown;

[0032] Figure 6 for Figure 5 An enlarged schematic diagram of the shielding member at position B is shown.

[0033] Mark in the figure: 10, gear box motor;

[0034] 100, housing; 101, accommodating cavity; 102, detection window; 103, lead hole;

[0035] 200, motor;

[0036] 300, reducer;

[0037] 400, temperature sensor; 410, detection unit; 420, transmission line;

[0038] 500, shielding member; 510, grabbing portion; 501, picking-out groove; 502, snap-off groove. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] Please see attached Figures 1 to 4 The gearbox motor 10 of the utility model includes a housing 100 , a motor 200 , a reducer 300 , a temperature sensor 400 and a shielding member 500 .

[0043] The housing 100 has a receiving cavity 101 formed inside, and the extending direction of the receiving cavity 101 is parallel to the extending direction of the housing 100. The outer side of the housing 100 is provided with a detection window 102, which is connected to the receiving cavity 101 and is an installation window for the temperature sensor 400. The motor 200 is arranged in the receiving cavity 101, and the motor 200 is also arranged corresponding to the detection window 102. The reducer 300 is arranged in the receiving cavity 101, and the reducer 300 is connected to the motor 200, so that the motor 200 can drive the reducer 300. The temperature sensor 400 is located in the detection window 102 and abuts against the surface of the motor 200, and the shielding member 500 is embedded in the detection window 102 and abuts against the temperature sensor 400 to fix the temperature sensor 400 on the motor 200. That is, the temperature sensor 400 is located in the detection window 102 and clamped between the motor 200 housing 100 and the shielding member 500, so that the temperature sensor 400 can directly contact the motor 200, and then the temperature sensor 400 directly obtains the temperature of the motor 200. In this embodiment, when the temperature of the motor 200 exceeds the preset value, the temperature sensor 400 obtains the corresponding signal and transmits the signal to the control mainboard, and the control mainboard controls the motor 200 to cut off the power to prevent the temperature of the motor 200 from continuing to rise.

[0044] It can be understood that the temperature sensor can be a thermistor, a thermocouple, a resistance temperature detector, an IC temperature sensor or other existing temperature sensors.

[0045] In the gearbox motor 10 of the utility model, a detection window 102 is opened on the outer side of the housing 100, and the temperature sensor 400 is arranged in the detection window 102, and the shielding member 500 is embedded in the detection window 102, so that the temperature sensor 400 is respectively in contact with the motor 200 and the shielding member 500, that is, the temperature sensor 400 is clamped between the motor 200 and the shielding member 500, that is, the temperature sensor 400 is located inside the housing 100 and directly contacts the motor 200; because the temperature sensor 400 is in direct contact with the motor 200, the temperature sensor 400 directly detects the temperature of the motor 200, thereby improving the detection accuracy of the temperature sensor 400, so that the temperature sensor 400 can timely feedback the signal of overheating of the motor 200 to the control main board, thereby avoiding the risk of overheating of the motor 200.

[0046] Furthermore, since the temperature sensor 400 and the shielding member 500 are both located in the detection window 102, the space occupied by the gearbox motor 10 is reduced, and the compactness of the structure of the gearbox motor 10 is improved. Furthermore, since the shielding member 500 is embedded in the detection window 102, the shielding member 500 shields the detection window 102, thereby preventing external stains from entering the gearbox motor 10 through the detection window 102, and preventing the external stains from having a negative impact on the gearbox motor 10.

[0047] In some preferred embodiments, a lead hole 103 is provided at one end of the housing 100, and the lead hole 103 is connected to the accommodating cavity 101. The temperature sensor 400 includes a detection part 410 and a transmission line 420. The detection part 410 is located in the detection window 102, and the detection part 410 abuts against the surface of the motor 200 and the shielding member 500, so that the detection part 410 is fixed between the motor 200 and the shielding member 500, and the detection part 410 directly contacts the surface of the motor 200. The transmission line 420 is passed through the lead hole 103, one end of the transmission line 420 is connected to the detection part 410, and the other end of the transmission line 420 is located outside the housing 100 and is used to control the main board connection.

[0048] In some preferred embodiments, the detection window 102 is in the shape of an elongated strip, and the extension direction of the detection window 102 is parallel to the extension direction of the housing 100. In this embodiment, since the detection window 102 is in the shape of an elongated strip, the detection window 102 is relatively long, which improves the convenience of installing the temperature sensor 400. Of course, the detection window 102 is not limited to the shape of an elongated strip. For example, in some other embodiments, the detection window 102 may also be circular, irregular, or other shapes.

[0049] In some preferred embodiments, the detection window 102 is a waist-shaped hole, so that the two ends of the detection window 102 are arc-shaped, which improves the convenience of processing the detection window 102, while also reducing the stress concentration at the detection window 102, avoiding the problem of the shell 100 breaking at the detection window 102.

[0050] In some preferred embodiments, the shielding member 500 is an elastic structure, and the shielding member 500 elastically abuts against the temperature sensor 400, thereby improving the position stability of the temperature sensor 400. The shielding member 500 is embedded in the detection window 102 and elastically abuts against the inner wall of the detection window 102, thereby improving the position stability of the shielding member 500. In addition, the shielding member 500 can be compressed during the removal process, thereby reducing the resistance between the shielding member 500 and the detection window 102, reducing the difficulty of removing the shielding member 500, improving the convenience of removing the shielding member 500, and thus improving the convenience of replacing the temperature sensor 400.

[0051] Embodiment 2:

[0052] This embodiment further optimizes the structure of the gearbox motor 10 based on any of the above embodiments. Figure 3 .

[0053] The shielding member 500 of this embodiment is provided with a gripping portion 510, which is located on the outside of the housing 100, that is, the gripping portion 510 is the portion of the shielding member 500 protruding from the housing 100. The shielding member 500 is gripped by the gripping portion 510, thereby improving the convenience of taking and placing the shielding member 500.

[0054] It is understandable that in some other embodiments, the shielding member 500 can eliminate the grabbing portion 510 , and the surface of the shielding member 500 is flush with the surface of the housing 100 to improve the surface flatness of the gearbox motor 10 and further improve the structural compactness of the gearbox motor 10 .

[0055] Embodiment 3:

[0056] This embodiment further optimizes the structure of the gearbox motor 10 based on any of the above embodiments. Figures 5-6 .

[0057] In this embodiment, a pick-out groove 501 is provided on the outer side of the shielding member 500 , and the shielding member 500 is picked out through the pick-out groove 501 , thereby improving the convenience of taking out the shielding member 500 and further improving the convenience of replacing the temperature sensor 400 .

[0058] In some preferred embodiments, the extraction groove 501 is located at one end of the shielding member 500. In this embodiment, one end of the shielding member 500 can be extracted first through the extraction groove 501, and then one end of the shielding member 500 can be grasped and pulled out, which improves the convenience of removing the shielding member 500, thereby improving the convenience of replacing the temperature sensor 400.

[0059] In some preferred embodiments, a snap-off groove 502 is provided on the side wall of the extraction groove 501. In this embodiment, a finger is inserted into the extraction groove 501, and then a nail is inserted into the snap-off groove 502, and then the shielding member 500 is extracted, which improves the convenience of removing the shielding member 500, thereby improving the convenience of replacing the temperature sensor 400.

[0060] Embodiment 4:

[0061] This embodiment provides a lifting curtain based on the above embodiment. Figures 1 to 3 .

[0062] A lifting curtain comprises a gear box motor 10 and a winding roller, wherein the power output end of a reducer 300 is connected to the winding roller, so that the reducer 300 is used to drive the winding roller to rotate.

[0063] In the lifting curtain of the utility model, a detection window 102 is provided on the outer side of the housing 100 of the gear box motor 10, a temperature sensor 400 is arranged in the detection window 102, and a shielding member 500 is embedded in the detection window 102, so that the temperature sensor 400 is respectively in contact with the motor 200 and the shielding member 500, that is, the temperature sensor 400 is clamped between the motor 200 and the shielding member 500, that is, the temperature sensor 400 is located inside the housing 100 and directly in contact with the motor 200; since the temperature sensor 400 is in direct contact with the motor 200, the temperature sensor 400 directly detects the temperature of the motor 200, thereby improving the detection accuracy of the temperature sensor 400, so that the temperature sensor 400 can timely feed back the signal of overheating of the motor 200 to the control main board, thereby avoiding the risk of overheating of the motor 200, and further avoiding the risk of damage to the lifting curtain due to overheating.

[0064] Furthermore, since the temperature sensor 400 and the shielding member 500 are both located in the detection window 102, the space occupied by the gearbox motor 10 is reduced, and the compactness of the structure of the gearbox motor 10 is improved. Furthermore, since the shielding member 500 is embedded in the detection window 102, the shielding member 500 shields the detection window 102, thereby preventing external stains from entering the gearbox motor 10 through the detection window 102, and preventing the external stains from having a negative impact on the gearbox motor 10.

[0065] It should be noted that the gearbox motor 10 is not limited to being used in lifting curtains. The gearbox motor 10 can also be used in sweeping robots, lifting tables or other existing products that need to be driven.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0068] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0069] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A gearbox motor, characterized in that: include: A housing (100), wherein a receiving cavity (101) is formed inside the housing (100), and a detection window (102) is provided on the outside of the housing (100), wherein the detection window (102) is in communication with the receiving cavity (101); A motor (200) is disposed in the accommodating cavity (101), and the motor (200) is also disposed corresponding to the detection window (102); A reducer (300) is disposed in the accommodating cavity (101), and the reducer (300) is connected to the motor (200); A temperature sensor (400) is located in the detection window (102) and abuts against a surface of the motor (200); as well as A shielding member (500) is embedded in the detection window (102) and abuts against the temperature sensor (400) so as to fix the temperature sensor (400) on the motor (200).

2. The gearbox motor according to claim 1, characterized in that: A lead hole (103) is provided at one end of the housing (100), and the lead hole (103) is communicated with the accommodating cavity (101); the temperature sensor (400) comprises a detection part (410) and a transmission line (420), the detection part (410) is located in the detection window (102), the detection part (410) is respectively in contact with the surface of the motor (200) and the shielding member (500), the transmission line (420) is passed through the lead hole (103), one end of the transmission line (420) is connected to the detection part (410), and the other end of the transmission line (420) is located outside the housing (100).

3. The gearbox motor according to claim 1, characterized in that: The detection window (102) is in the shape of a long strip, and the extension direction of the detection window (102) is parallel to the extension direction of the housing (100).

4. The gearbox motor according to claim 3, characterized in that: The detection window (102) is a waist-shaped hole.

5. The gearbox motor according to claim 1, characterized in that: The shielding member (500) is provided with a gripping portion (510), and the gripping portion (510) is located outside the housing (100).

6. The gearbox motor according to claim 1, characterized in that: The outer side of the shielding member (500) is provided with a cut-out groove (501).

7. The gearbox motor according to claim 6, characterized in that: The cutting groove (501) is located at one end of the shielding member (500).

8. The gearbox motor according to claim 6, characterized in that: The side wall of the cutting-out groove (501) is provided with a cutting-out groove (502).

9. The gearbox motor according to claim 1, characterized in that: The shielding member (500) is an elastic structure, and the shielding member (500) elastically abuts against the temperature sensor (400).

10. A lifting curtain, characterized in that: A gearbox motor (10) comprising any one of claims 1 to 9.

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