Self-adaptive heat dissipation device for explosion-proof motor
By designing an adaptive heat dissipation device in an explosion-proof motor, the heat discharge is accelerated by the cooperation of temperature detection and control valves, the problem of heat accumulation inside the motor is solved, and the heat dissipation efficiency and use time are improved.
Patent Information
- Application Number
- CN202420616296.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-27
AI Technical Summary
After a long time of use, existing explosion-proof motors have reduced heat dissipation efficiency due to accumulation of internal heat, which affects the motor's usage time.
An adaptive heat dissipation device is designed, including a housing, an auxiliary heat dissipation assembly, a temperature detection unit and a processor. Through the cooperation of the temperature detection and control valve, the auxiliary heat dissipation hole is connected to the heat dissipation pipe by the airflow formed by the heat dissipation fan, forming a negative pressure. To accelerate heat discharge and extend the motor service time.
It improves the heat dissipation efficiency of the motor, extends the use time of the motor, and improves the working stability of the ventilation box through the combination of the electric telescopic rod and the ventilation box.
Smart Images
Figure CN222192065U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of heat dissipation technology, and in particular to an adaptive heat dissipation device for explosion-proof motors. Background Art
[0002] Explosion-proof motors are motors that can be used in flammable and explosive places and do not generate sparks during operation. They are mainly used in coal mines, oil and gas, petrochemical and chemical industries, and are usually used to drive pumps, fans, compressors and other transmission machinery.
[0003] Existing explosion-proof motors generally include a housing, a rotating body and a cooling fan. The housing includes a shell, a front cover and a rear cover. The front cover and the rear cover are respectively located at the two ends of the shell, and the shell, the front cover and the rear cover form a placement cavity. The rotating body is placed inside the placement cavity, and the rotating body is prone to generate a large amount of heat during operation. In order to facilitate the heat dissipation of the rotating body, a number of cooling holes are opened on the rear cover, and the cooling fan is installed near the cooling holes. When the rotating body is working, the heat inside the shell is discharged from the cooling holes through the cooling fan, thereby reducing the temperature of the shell.
[0004] At present, the heat dissipation of the motor is mainly carried out through the cooling fan and the casing. However, as the motor is used for a long time, the heat inside the motor gradually accumulates, and the motor needs to be stopped for heat dissipation after being used for a period of time. Therefore, there is a defect that affects the use time of the motor. Utility Model Content
[0005] In order to extend the service life of a motor, the present application provides an adaptive heat dissipation device for an explosion-proof motor.
[0006] The present application provides an adaptive heat dissipation device for explosion-proof motors using the following technical solutions:
[0007] An adaptive heat dissipation device for an explosion-proof motor, the adaptive heat dissipation device is used to dissipate heat for an explosion-proof motor equipped with a heat dissipation fan, comprising:
[0008] A shell, wherein a plurality of auxiliary heat dissipation holes are formed on the shell, and the plurality of auxiliary heat dissipation holes are connected to the interior of the shell, and a heat dissipation fan is installed inside the shell;
[0009] An auxiliary heat dissipation assembly, the auxiliary heat dissipation assembly comprising a heat dissipation pipe installed near the shell and a control valve installed on the heat dissipation pipe, the control valve is used to control the opening and closing of the air inlet end of the heat dissipation pipe and the auxiliary heat dissipation hole, and the air outlet end of the heat dissipation pipe is located near the heat dissipation fan;
[0010] A temperature detection unit, the temperature detection unit is installed inside the housing;
[0011] A processor, wherein the processor is mounted on the housing, and the temperature detection unit, the control valve and the processor are electrically connected;
[0012] When the cooling fan cools the motor, the temperature detection unit detects the temperature signal inside the motor and uploads the detected temperature signal to the processor. When the temperature inside the motor exceeds the set value, the processor connects the heat dissipation pipe and the auxiliary heat dissipation hole through the control valve. The heat dissipation airflow caused by the cooling fan forms negative pressure at the air inlet and outlet ends of the heat dissipation pipe, so that the hot air inside the motor is discharged from the auxiliary heat dissipation hole to the outside of the casing.
[0013] Optionally, the control valve includes a ventilation box slidably mounted on the outer circumference of the shell near the auxiliary heat dissipation holes, a mounting bracket mounted on the outer circumference of the shell near the cooling fan, and a driving member mounted on the mounting bracket, a plurality of ventilation holes corresponding to the auxiliary heat dissipation holes are formed on one side of the ventilation box close to the shell, the air inlet end of the heat pipe is connected to the ventilation box, and the driving member is electrically connected to the processor.
[0014] Optionally, a guide hole is provided on a side of the ventilation box close to the driving member, and the air inlet end of the heat dissipation pipe is slidably matched with the guide hole.
[0015] Optionally, the driving member is an electric telescopic rod installed on the mounting frame, one end of the electric telescopic rod is connected to the mounting frame, the other end of the electric telescopic rod is connected to the ventilation box, and the electric telescopic rod is electrically connected to the processor.
[0016] Optionally, the mounting frame is arranged in a ring shape, the mounting frame is sleeved on the outer circumferential surface of the outer shell, and a first connecting hole is opened on the side wall of the mounting frame, a second connecting hole is opened on the inner ring wall of the mounting frame, and the first connecting hole and the second connecting hole are connected, and the heat dissipation pipe passes through the first connecting hole and the second connecting hole.
[0017] Optionally, the air outlet end of the heat dissipation pipe is inclined in a direction away from the heat dissipation fan.
[0018] Optionally, a guide plate is provided on the inner wall of the ventilation box, and the guide plate is inclined toward a direction close to the guide hole.
[0019] Optionally, the temperature detection unit is located near a heat dissipation fan inside the housing.
[0020] In summary, the present application includes at least one of the following beneficial technical effects:
[0021] 1. When the cooling fan is cooling the explosion-proof motor, the temperature signal near the cooling fan is detected by the temperature detection probe, and the temperature signal is uploaded to the processor. When the temperature near the cooling fan exceeds the set value, the processor controls the electric telescopic rod to drive the ventilation box to move, so that the auxiliary heat dissipation holes are connected to the heat dissipation pipe through the ventilation holes on the ventilation box. At this time, the air inlet and outlet ends of the heat dissipation pipe generate negative pressure under the action of the airflow generated by the cooling fan, so that part of the heat inside the shell is discharged from the auxiliary heat dissipation holes, accelerating the heat dissipation efficiency of the motor and improving the service life of the motor;
[0022] 2. The heat dissipation pipe guides the ventilation box through the guide hole, and the heat dissipation pipe and the electric telescopic rod cooperate with each other to support the ventilation box, further improving the working stability of the ventilation box. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0024] Figure 2 It is a schematic diagram showing the relative positions of the auxiliary heat dissipation holes and the housing in the embodiment of the present application.
[0025] Figure 3 It is a schematic diagram of the auxiliary heat dissipation component structure in the embodiment of the present application.
[0026] Figure 4 It is a schematic diagram of the mounting frame structure in the embodiment of the present application.
[0027] Description of reference numerals:
[0028] 1. Shell; 11. Shell; 111. Auxiliary heat dissipation holes; 12. Rear end cover; 121. Heat dissipation holes; 2. Auxiliary heat dissipation assembly; 21. Heat dissipation pipe; 22. Control valve; 221. Mounting frame; 2211. First connecting hole; 2212. Second connecting hole; 222. Ventilation box; 2221. Ventilation hole; 2222. Guide hole; 223. Drive member; 3. Processor. DETAILED DESCRIPTION
[0029] The following is combined with Figure 1-Figure 4 This application is described in further detail.
[0030] The embodiment of the present application discloses an adaptive heat dissipation device for an explosion-proof motor.
[0031] An adaptive heat dissipation device for explosion-proof motors comprises a housing 1, an auxiliary heat dissipation component 2, a temperature detection unit and a processor 3. The auxiliary heat dissipation component 2, the temperature detection unit and the processor 3 are all mounted on the housing 1, and the auxiliary heat dissipation component 2, the temperature detection unit and the processor 3 are electrically connected to each other.
[0032] When the cooling fan of the explosion-proof motor is working, the temperature signal near the cooling fan is measured by the temperature detection unit, and the measured data is transmitted to the processor 3. When the temperature near the cooling fan exceeds the set value, the processor 3 performs auxiliary cooling of the explosion-proof motor through the auxiliary cooling component 2, so as to further improve the cooling efficiency of the explosion-proof motor and thus extend the service life of the explosion-proof motor.
[0033] The housing 1 comprises a housing 11, a front cover and a rear cover 12. The front cover and the rear cover 12 are fixedly mounted at both ends of the housing 11, respectively, and the housing 11, the front cover and the rear cover 12 form a placement cavity. The rear cover 12 is provided with a plurality of heat dissipation holes 121, and a heat dissipation fan is fixedly mounted near the heat dissipation holes 121 of the rear cover 12, and the heat dissipation fan discharges the hot air flow from the heat dissipation holes 121 to the outside of the housing 1.
[0034] Two auxiliary heat dissipation areas are arranged on the housing 11, each of which is provided with a plurality of auxiliary heat dissipation holes 111, each of which is connected to the interior of the housing 11.
[0035] The temperature detection unit includes a placement rack and a temperature detection probe. The placement rack is fixedly installed at a position near the cooling fan inside the housing 11, and the temperature detection probe is fixedly installed on the placement rack.
[0036] The auxiliary heat dissipation assembly 2 includes a heat dissipation pipe 21 and a control valve 22. The control valve 22 includes a mounting frame 221, a ventilation box 222 and a driving member 223. The mounting frame 221 is arranged in a ring shape, and the mounting frame 221 is fixedly sleeved on the rear end cover 12, the processor 3 is fixedly mounted on the mounting frame 221, and the temperature detection probe is connected to the processor 3.
[0037] There are two ventilation boxes 222, and the two ventilation boxes 222 correspond to the two heat dissipation areas. A side of each ventilation box 222 close to the housing 11 is provided with an arc surface, and the ventilation box 222 fits the outer peripheral surface of the housing 11. A plurality of ventilation holes 2221 are provided on the side of the ventilation box 222 close to the housing 11, and the plurality of ventilation holes 2221 correspond to the plurality of auxiliary heat dissipation holes 111. A guide hole 2222 is provided on the side of the ventilation box 222 close to the mounting frame 221.
[0038] There are two driving members 223, and the two driving members 223 correspond to the two ventilation boxes 222 one by one. The driving member 223 is an electric telescopic rod, which is electrically connected to the processor 3, one end of which is fixedly connected to the mounting frame 221, and the other end of which is connected to the ventilation box 222, and the length direction of the electric telescopic rod is consistent with the length square of the housing 11. The electric telescopic rod drives the ventilation box 222 to move on the housing 11, so as to control the auxiliary heat dissipation hole 111 and the ventilation hole 2221 to be turned on and off.
[0039] Two heat dissipation pipes 21 are provided, and the two heat dissipation pipes 21 correspond to the two ventilation boxes 222, and the air inlet end of the heat dissipation pipe 21 and the guide hole 2222 are slidably matched. When the ventilation box 222 moves, the heat dissipation pipe 21 guides and limits the ventilation box 222, so as to improve the accuracy of the moving position of the ventilation box 222. At the same time, the heat dissipation pipe 21 limits the ventilation box 222, and the heat dissipation pipe 21 and the electric telescopic rod cooperate with each other to connect the ventilation box 222, so as to improve the working stability of the ventilation box 222.
[0040] A plurality of guide plates are fixedly installed inside the ventilation box 222 , and the plurality of guide plates are all inclined toward the direction close to the guide hole 2222 , so as to guide the airflow inside the ventilation box 222 .
[0041] The mounting frame 221 is provided with a first connecting hole 2211 near the heat dissipation pipe 21, and the inner wall of the mounting frame 221 is provided with a second connecting hole 2212. The first connecting hole 2211 and the second connecting hole 2212 are connected, and the heat dissipation pipe 21 passes through the first connecting hole 2211 and the second connecting hole 2212 in sequence. The mounting frame 221 limits the heat dissipation pipe 21 through the first connecting hole 2211 and the second connecting hole 2212, so as to improve the placement stability of the heat dissipation pipe 21. The air outlet end of the heat dissipation pipe 21 passes through the rear end cover 12 near the heat dissipation fan, and the air outlet end of the heat dissipation pipe 21 is located between the heat dissipation fan and the heat dissipation hole 121, and the air outlet end of the heat dissipation pipe 21 is inclined in the direction away from the heat dissipation fan.
[0042] The implementation principle of an adaptive heat dissipation device for an explosion-proof motor in an embodiment of the present application is as follows: when the airflow formed by the cooling fan blows the heat inside the explosion-proof motor out of the explosion-proof motor from the heat dissipation holes 121 on the rear end cover 12, the temperature signal near the cooling fan is detected by a temperature detection probe, and the detected signal is transmitted to the processor 3. When the temperature near the cooling fan exceeds the set value, the processor 3 controls the ventilation box 222 to move on the outer shell 1, and connects the ventilation holes 2221 on the ventilation box 222 with the heat dissipation holes 121 on the shell 11. Since the heat pipe 21 is close to the cooling fan, negative pressure is formed at the air outlet and air inlet ends of the heat pipe 21, and the hot air flow inside the shell 11 enters the ventilation box 222 from the auxiliary heat dissipation holes 111 and the ventilation holes 2221, and moves from the heat pipe 21 to the inside of the shell 11, and is discharged to the outside of the explosion-proof motor with the airflow of the cooling fan. When the airflow enters the ventilation box 222 from the ventilation holes 2221, a number of guide plates inside the ventilation box 222 guide the airflow inside the ventilation box 222, so that the airflow inside the ventilation box 222 moves toward the direction close to the air inlet end of the heat pipe 21. When auxiliary heat dissipation is not needed, the ventilation box 222 can be reset by the electric telescopic rod.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An adaptive heat dissipation device for explosion-proof motors, the adaptive heat dissipation device is used to dissipate heat for explosion-proof motors equipped with cooling fans, and is characterized in that: include; A shell (1), wherein a plurality of auxiliary heat dissipation holes (111) are provided on the shell (1), the plurality of auxiliary heat dissipation holes (111) are all connected to the interior of the shell (1), and a heat dissipation fan is installed inside the shell (1); An auxiliary heat dissipation component (2), the auxiliary heat dissipation component (2) comprising a heat dissipation pipe (21) installed near the housing (1) and a control valve (22) installed on the heat dissipation pipe (21), the control valve (22) being used to control the opening and closing of the air inlet end of the heat dissipation pipe (21) and the auxiliary heat dissipation hole (111), and the air outlet end of the heat dissipation pipe (21) being located near a heat dissipation fan; A temperature detection unit, the temperature detection unit being installed inside the housing (1); A processor (3), the processor (3) being mounted on the housing (1), the temperature detection unit, the control valve (22) and the processor (3) being electrically connected; When the cooling fan cools the motor, the temperature detection unit detects the temperature signal inside the motor and uploads the detected temperature signal to the processor (3). When the temperature inside the motor exceeds a set value, the processor (3) connects the cooling pipe (21) and the auxiliary cooling hole (111) through the control valve (22). The cooling airflow caused by the cooling fan forms a negative pressure at the air inlet and outlet of the cooling pipe (21), so that the hot air inside the motor is discharged from the auxiliary cooling hole (111) to the outside of the housing (1).
2. The adaptive heat dissipation device for explosion-proof motor according to claim 1, characterized in that: The control valve (22) comprises a ventilation box (222) slidably mounted on the outer circumference of the housing (1) near the auxiliary heat dissipation holes (111), a mounting frame (221) mounted on the outer circumference of the housing (1) near the heat dissipation fan, and a driving member (223) mounted on the mounting frame (221); a plurality of ventilation holes (2221) corresponding to the auxiliary heat dissipation holes (111) are provided on a side of the ventilation box (222) near the housing (1); an air inlet end of the heat dissipation pipe (21) is connected to the ventilation box (222); and the driving member (223) is electrically connected to the processor (3).
3. The adaptive heat dissipation device for explosion-proof motor according to claim 2, characterized in that: A guide hole (2222) is provided on one side of the ventilation box (222) close to the driving member (223), and the air inlet end of the heat dissipation pipe (21) is slidably matched with the guide hole (2222).
4. The adaptive heat dissipation device for explosion-proof motor according to claim 3, characterized in that: The driving member (223) is an electric telescopic rod mounted on the mounting frame (221), one end of the electric telescopic rod is connected to the mounting frame (221), the other end of the electric telescopic rod is connected to the ventilation box (222), and the electric telescopic rod is electrically connected to the processor (3).
5. The adaptive heat dissipation device for explosion-proof motor according to claim 2, characterized in that: The mounting frame (221) is arranged in an annular shape, and is sleeved on the outer peripheral surface of the outer shell (1). A first connecting hole (2211) is provided on the side wall of the mounting frame (221), and a second connecting hole (2212) is provided on the inner ring wall of the mounting frame (221). The first connecting hole (2211) and the second connecting hole (2212) are connected, and the heat dissipation pipe (21) passes through the first connecting hole (2211) and the second connecting hole (2212).
6. The adaptive heat dissipation device for explosion-proof motor according to claim 1, characterized in that: The air outlet end of the heat dissipation pipe (21) is inclined in a direction away from the heat dissipation fan.
7. The adaptive heat dissipation device for explosion-proof motor according to claim 3, characterized in that: A guide plate is provided on the inner wall of the ventilation box (222), and the guide plate is inclined in a direction close to the guide hole (2222).
8. The adaptive heat dissipation device for explosion-proof motor according to claim 1, characterized in that: The temperature detection unit is located near a heat dissipation fan inside the housing (1).