Door machine driving and controlling all-in-one machine with double overheating protection

Abstract

The utility model relates to a door machine driving and controlling all-in-one machine with double overheating protection. The door machine driving and controlling all-in-one machine comprises a door machine shell, a motor rotating shaft, a rotor, a stator and a control panel. The motor rotating shaft is arranged in the door machine shell, and the rotor is arranged on the door machine rotating shaft and can rotate along with the door machine rotating shaft. The stator is arranged in the door machine shell and wraps the rotor, the stator comprises a stator winding, and a plurality of first overheating protection elements are arranged on the stator winding. The control panel is arranged in the door machine shell, and a plurality of second overheating protection elements are arranged on the control panel in the circumferential direction of the motor. And the first overheat protection element and the second overheat protection element are matched to detect the temperature of the stator winding. The second overheat protection element is arranged on the control panel above the stator winding along the circumferential direction of the motor, the first overheat protection element is conventionally arranged at the stator winding, and the second overheat protection element and the first overheat protection element are matched with each other to detect the temperature of the stator winding so as to realize double guarantee of overheat protection of the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator door machines, in particular to a door machine drive-control integrated machine with double overheat protection. Background Art

[0002] Motor overheating is a common problem during motor operation. If not handled in a timely manner, it may cause the insulation of the motor winding to age due to excessive temperature, and the grease in the motor bearings to fail due to long-term high temperature. Ultimately, the motor life will be significantly shortened, and it may even cause local burning of the motor, causing safety accidents such as fire.

[0003] Existing motors typically have thermal protection elements embedded in the motor windings to monitor motor temperature and trigger an alarm if the motor temperature is too high. However, due to factors such as high temperatures, mechanical damage, and material aging, these thermal protection elements can become damaged and fail, thus failing to protect the motor from overheating. Utility Model Content

[0004] The purpose of the present utility model is to provide a door machine drive and control integrated machine with double overheat protection, which can achieve double protection of motor overheat protection by arranging a second overheat protection element along the circumferential direction of the motor on the control panel above the stator winding, and cooperating with the conventional first overheat protection element arranged at the stator winding.

[0005] To achieve the above objectives, the present invention provides a door operator drive and control integrated machine with dual overheat protection, comprising:

[0006] Door operator housing;

[0007] A motor shaft is arranged in the door machine housing;

[0008] A rotor is provided on the door machine shaft and can rotate along with the door machine shaft;

[0009] a stator, disposed in the door machine housing and wrapping the rotor, the stator comprising a stator winding, and the stator winding being provided with a plurality of first overheat protection elements;

[0010] A control board is arranged in the door machine housing, and a plurality of second overheat protection elements are arranged on the control board along the circumferential direction of the motor;

[0011] The first overheat protection element cooperates with the second overheat protection element to detect the temperature of the stator winding.

[0012] Optionally, a projection of a circle formed by a plurality of second overheat protection elements on the stator has the center of the stator as the center of the circle and the distance from the center of the stator to the outer edge of the stator winding as the radius.

[0013] Optionally, there are three second overheating protection elements, and the three second overheating protection elements are evenly distributed on the control board around the outer edge of the stator winding.

[0014] Optionally, a rated resistance range of the first overheat protection element and the second overheat protection element is 9KΩ-11KΩ.

[0015] Optionally, the operating temperature range of the first overheat protection element and the second overheat protection element is -40°C to 125°C.

[0016] Optionally, a bearing is provided between the motor shaft and the door machine housing.

[0017] Optionally, a synchronous pulley is provided at the front end of the motor shaft.

[0018] The beneficial effect of the present invention is that by arranging a second overheating protection element along the circumferential direction of the motor on the control panel above the stator winding, and cooperating with the conventional first overheating protection element arranged at the stator winding, the two cooperate with each other to detect the temperature of the stator winding, thereby achieving double protection of the motor overheating protection.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural cross-sectional view of a door operator drive-control integrated machine with dual overheat protection shown in one embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of a control panel of a door operator drive-control integrated machine with dual overheat protection according to an embodiment of the present invention;

[0022] In the figure: 1. Door machine housing; 2. Motor shaft; 3. Rotor; 4. Stator; 41. Stator winding; 5. Control board; 6. Second overheat protection element; 7. Bearing; 8. Synchronous pulley. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] See Figure 1 and Figure 2 A door machine drive and control integrated machine with dual overheat protection shown in a preferred embodiment of the present application includes a door machine housing 1, a motor shaft 2, a rotor 3, a stator 4 and a control board 5. The motor shaft 2 is arranged in the door machine housing 1, and the rotor 3 is arranged on the door machine shaft and can rotate with the door machine shaft. The stator 4 is arranged in the door machine housing 1 and wraps the rotor 3. The stator 4 includes a stator winding 41, and a plurality of first overheat protection elements are arranged on the stator winding 41. The control board 5 is arranged in the door machine housing 1, and a plurality of second overheat protection elements 6 are arranged on the control board 5 along the circumferential direction of the motor. The first overheat protection element cooperates with the second overheat protection element 6 to detect the temperature of the stator winding 41.

[0027] According to the solution of the embodiment of the present invention, a second overheating protection element 6 is arranged on the control board 5 above the stator winding 41 along the circumferential direction of the motor, and cooperates with the conventional first overheating protection element set at the stator winding 41. The two cooperate with each other to detect the temperature of the stator winding 41, so as to achieve double protection of the motor overheating.

[0028] The following is a detailed description with specific embodiments:

[0029] See Figure 2The projection of the circle formed by the plurality of second overheat protection elements 6 on the stator 4 has the center of the stator 4 as the center of the circle and the distance from the center of the stator 4 to the outer edge of the stator winding 41 as the radius. Specifically, there are three second overheat protection elements 6, and the three second overheat protection elements 6 are evenly distributed around the outer edge of the stator winding 41 on the control board 5. The second overheat protection element 6 is arranged above the stator winding 41, and the second overheat protection element 6 is arranged around the stator winding 41, which can more accurately detect the temperature of the stator winding 41. The temperature of the stator winding 41 is detected by two groups of overheat protection elements on the stator winding 41 and the control board 5 respectively. When an overheat protection element is abnormal, the abnormal overheat protection element is determined by comparing the detected temperature of the stator winding 41, and then an alarm is issued through the control system, thereby achieving double protection of the motor overheat protection.

[0030] Specifically, the rated resistance range of the first overheat protection element and the second overheat protection element 6 is 9KΩ-11KΩ. The operating temperature range of the first overheat protection element and the second overheat protection element 6 is -40°C-125°C.

[0031] See Figure 1 Furthermore, a bearing 7 is provided between the motor shaft 2 and the door machine housing 1. A synchronous pulley 8 is provided at the front end of the motor shaft 2.

[0032] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A door machine drive and control integrated machine with double overheat protection, characterized in that: include: Door operator housing; A motor shaft is arranged in the door machine housing; A rotor is provided on the door machine shaft and can rotate along with the door machine shaft; a stator, disposed in the door machine housing and wrapping the rotor, the stator comprising a stator winding, and the stator winding being provided with a plurality of first overheat protection elements; A control board is arranged in the door machine housing, and a plurality of second overheat protection elements are arranged on the control board along the circumferential direction of the motor; The first overheat protection element cooperates with the second overheat protection element to detect the temperature of the stator winding.

2. The door operator drive and control integrated machine with dual overheat protection according to claim 1, characterized in that: The projection of a circle formed by a plurality of the second overheat protection elements on the stator has the center of the stator as the center of the circle and the distance from the center of the stator to the outer edge of the stator winding as the radius.

3. The door operator drive and control integrated machine with dual overheat protection according to claim 2, characterized in that: There are three second overheat protection elements, which are evenly distributed on the control board around the outer edge of the stator winding.

4. The door operator drive and control integrated machine with dual overheat protection according to claim 1, characterized in that: The rated resistance range of the first overheat protection element and the second overheat protection element is 9KΩ-11KΩ.

5. The door operator drive and control integrated machine with dual overheat protection according to claim 4, characterized in that: The operating temperature range of the first overheat protection element and the second overheat protection element is -40°C to 125°C.

6. The door operator drive and control integrated machine with dual overheat protection according to claim 1, characterized in that: A bearing is provided between the motor shaft and the door machine housing.

7. The door operator drive and control integrated machine with dual overheat protection according to claim 6, characterized in that: A synchronous pulley is provided at the front end of the motor shaft.

Images