Anti-overheating series excited motor

Abstract

The utility model discloses an anti-overheating series excited motor, which comprises a heat dissipation mechanism and a series excited motor body installed inside the heat dissipation mechanism, a fixing mechanism is arranged at the bottom of the heat dissipation mechanism, a chain wheel transmission assembly is arranged on one side of the fixing mechanism, the heat dissipation mechanism comprises a motor heat dissipation cylinder, and the motor heat dissipation cylinder is provided with a chain wheel. A plurality of first heat dissipation fins are fixedly installed on one side of the motor heat dissipation cylinder, a heat dissipation water tank is fixedly installed on the side, close to the first heat dissipation fins, of the motor heat dissipation cylinder, the top of the heat dissipation water tank is in threaded connection with a water tank plug, and a plurality of spraying water pumps are fixedly installed on one side of the heat dissipation water tank; the output end of the spraying water pump is fixedly connected with a water inlet pipe, the end of the water inlet pipe is fixedly connected with an atomization spraying ring, heat of the series excited motor body is absorbed and transmitted outwards through the heat absorption effect of the first heat dissipation fins and the second heat dissipation fins, the dissipated heat is quickly blown to be dissipated through the heat dissipation fan, and the heat dissipation efficiency is improved. Therefore, the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor equipment, in particular to an overheat-proof series-excitation motor. Background Art

[0002] The series-excited motor has the characteristics of high speed, small size and light weight, so it is used as a power source in most power tools. However, the series-excited motor used in power tools is started frequently, has high speed, large vibration, uneven load and is easy to stall, which causes the armature temperature to rise sharply. The traditional heat dissipation method is to install fan blades at the bearing end inside the motor. When the motor rotates, it can drive the fan blades to rotate to cool the inside of the motor. However, the motor will generate a higher temperature when working for a long time. The fan blades alone cannot dissipate heat efficiently, which causes the motor temperature to be too high and affects its use.

[0003] Announcement No. CN 216312834 U discloses a series-excited motor. By setting a heat-conducting ring and a heat-conducting sheet, the low temperature of the cooling end of the semiconductor refrigeration sheet is transmitted to the heat-conducting ring by the heat-conducting sheet. When the motor drives the fan blades to rotate, the fan blades drive the airflow to pass through the heat-conducting ring, which can cool the airflow. At the same time, heat dissipation fins are set on the surface of the motor housing, and the heat dissipation fins are used to further dissipate the heat inside the motor, thereby more efficiently cooling the inside of the motor. By setting a temperature sensor, when the temperature inside the motor reaches the upper limit of the temperature sensor, the temperature sensor transmits a signal to an external control system, and the external control system controls the operation of the semiconductor refrigeration sheet, thereby avoiding excessive waste of energy caused by the semiconductor refrigeration sheet working all the time. By setting a shock-absorbing pad, the vibration generated when the motor is working can be reduced by using the shock-absorbing pad, thereby improving the stability of the motor. However, the patent still has the following problems in actual use:

[0004] Although the series-excited motor uses a heat-conducting ring and a heat-conducting sheet to transfer the low temperature at the cooling end of the semiconductor refrigeration plate to the heat-conducting ring through the heat-conducting sheet, the semiconductor refrigeration plate itself does not have a cooling effect and can only absorb and transfer heat. If the semiconductor refrigeration plate cannot be cooled quickly, the cooling effect of the semiconductor refrigeration plate will be limited, thereby affecting the heat dissipation effect of the series-excited motor.

[0005] An overheat-proof series-excited motor is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide an overheating-proof series-excited motor to solve the problem proposed in the above-mentioned background technology that although the series-excited motor is provided with a heat-conducting ring and a heat-conducting sheet, the low temperature at the cooling end of the semiconductor refrigeration sheet is transferred to the heat-conducting ring by the heat-conducting sheet, but the semiconductor refrigeration sheet itself does not have a refrigeration effect and can only absorb and transfer heat. If the semiconductor refrigeration sheet cannot be cooled quickly, the cooling effect of the semiconductor refrigeration sheet is limited, thereby affecting the heat dissipation effect of the series-excited motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an overheat-proof series-excited motor, comprising a heat dissipation mechanism, and a series-excited motor body installed inside the heat dissipation mechanism;

[0008] A fixing mechanism is provided at the bottom of the heat dissipation mechanism, and a sprocket transmission assembly is provided on one side of the fixing mechanism;

[0009] Also includes:

[0010] The heat dissipation mechanism comprises a motor heat dissipation cylinder, a plurality of first heat dissipation fins are fixedly installed on one side of the motor heat dissipation cylinder, and a heat dissipation water tank is fixedly installed on one side of the motor heat dissipation cylinder close to the first heat dissipation fins;

[0011] Wherein, a water tank plug is threadedly connected to the top of the heat dissipation water tank, and a plurality of spray water pumps are fixedly installed on one side of the heat dissipation water tank;

[0012] Wherein, the output end of the spray water pump is fixedly connected with a water inlet pipe, and the end of the water inlet pipe is fixedly connected with an atomizing spray ring.

[0013] Preferably, the atomizing spray ring is fixedly installed inside the motor heat dissipation tube, a motor bracket is fixedly installed on one side of the inside of the motor heat dissipation tube, the series-excited motor body is fixedly installed at the inner center position of the motor bracket, and a plurality of second heat dissipation fins are fixedly installed on the outside of the series-excited motor body.

[0014] Preferably, a motor tail cover is provided at one end of the motor heat dissipation tube, a plurality of first fixing bolts are threadedly connected to one side of the motor tail cover, the motor tail cover is fixedly connected to the motor heat dissipation tube through the first fixing bolts, a fan bracket is fixedly installed on one side of the interior of the motor tail cover, a heat dissipation fan is fixedly installed on the interior of the fan bracket, and a heat dissipation mesh cover is fixedly installed on the side of the interior of the motor tail cover away from the fan bracket.

[0015] Preferably, a motor end cover is provided at one end of the motor heat dissipation tube away from the motor tail cover, a plurality of second fixing bolts are threadedly connected to one side of the inner part of the motor end cover, the motor end cover is fixedly connected to the motor heat dissipation tube by the second fixing bolts, and a plurality of heat dissipation holes are opened inside the motor end cover.

[0016] Preferably, the motor end cover is rotatably connected to the output end of the series-excited motor body, and motor legs are symmetrically installed on both sides of the bottom of the motor heat dissipation tube.

[0017] Preferably, the fixing mechanism includes a fixed base, a third fixing bolt is threadedly connected to the inner periphery of the fixed base, clamping grooves are symmetrically provided on both sides of the top of the fixed base, the sprocket transmission assembly is arranged on one side of the fixed base, and the sprocket transmission assembly is rotatably connected to the fixed base.

[0018] Preferably, a clamping knob is fixedly installed on one side of the sprocket transmission assembly, and a clamping bidirectional threaded rod is symmetrically connected to the side of the sprocket transmission assembly away from the clamping knob, and both ends of the clamping bidirectional threaded rod are symmetrically threadedly connected with clamping threaded sleeves, a clamping connecting plate is fixedly installed on the top of the clamping threaded sleeve on one side, and a clamping block is fixedly installed on the top of the clamping connecting plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: the anti-overheating series motor utilizes the heat absorption effect of the first heat dissipation fin and the second heat dissipation fin to absorb the heat of the series motor body and transfer it outward, and the heat dissipated is quickly blown away by the heat dissipation fan, thereby improving the heat dissipation effect, and utilizing the structural characteristics of the clamping bidirectional threaded rod to achieve relative sliding of the clamping thread sleeves on both sides, and utilizing the clamping thread sleeve to drive the clamping connection plate and the clamping block to slide relative to each other, and can be connected with the motor leg by clamping, thereby achieving rapid installation and fixation of the motor heat dissipation tube and the series motor body, and the specific contents are as follows:

[0020] 1. By setting up the heat dissipation mechanism, not only can the heat absorption effect of the first heat dissipation fin and the second heat dissipation fin be utilized to absorb the heat of the series motor body and transfer it outward, but the heat dissipation fan can also be used to quickly blow and dissipate the heat, thereby improving the heat dissipation effect. The temperature sensor inside the motor heat dissipation tube is used to detect the temperature of the series motor body. When the temperature exceeds a certain value, the spray water pump is used to spray the water in the heat dissipation water tank from the atomizing spray ring through the water inlet pipe. The water mist is used to quickly volatilize to quickly cool the series motor body, further improving the heat dissipation effect of the series motor body, avoiding overheating and damage to the series motor body, and using the heat dissipation mesh cover and heat dissipation holes to realize air circulation, which is convenient for air cooling and heat dissipation;

[0021] 2. Through the fixing mechanism, the clamping knob can be used to drive the sprocket transmission assembly and the clamping bidirectional threaded rod to rotate. The structural characteristics of the clamping bidirectional threaded rod can be used to realize the relative sliding of the clamping thread sleeves on both sides. The clamping thread sleeves are used to drive the clamping connecting plate and the clamping block to slide relative to each other, and can be connected with the motor support legs, thereby realizing the rapid installation and fixation of the motor heat sink and the series-excited motor body, and facilitating the disassembly and maintenance of the series-excited motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the heat dissipation mechanism in the utility model;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the atomizing spray ring in the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the motor tail cover in the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed base in the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping connecting plate and the clamping block in the utility model.

[0028] In the figure: 1. heat dissipation mechanism; 101. motor heat dissipation tube; 102. first heat dissipation fin; 103. heat dissipation water tank; 104. water tank plug; 105. spray water pump; 106. water inlet pipe; 107. atomizing spray ring; 108. motor bracket; 109. series motor body; 110. second heat dissipation fin; 111. motor tail cover; 112. first fixing bolt; 113. fan bracket; 114. heat dissipation fan ; 115, heat dissipation mesh cover; 116, motor end cover; 117, second fixing bolt; 118, heat dissipation hole; 119, motor support leg; 2, fixing mechanism; 201, fixing base; 202, third fixing bolt; 203, clamping slide groove; 204, sprocket transmission assembly; 205, clamping knob; 206, clamping bidirectional threaded rod; 207, clamping threaded sleeve; 208, clamping connecting plate; 209, clamping block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 6The utility model provides a technical solution: an overheating-proof series-excited motor, comprising a heat dissipation mechanism 1, and a series-excited motor body 109 installed inside the heat dissipation mechanism 1, a fixing mechanism 2 is arranged at the bottom of the heat dissipation mechanism 1, and a sprocket transmission assembly 204 is arranged on one side of the fixing mechanism 2, the heat dissipation mechanism 1 comprises a motor heat dissipation cylinder 101, a plurality of first heat dissipation fins 102 are fixedly installed on one side of the motor heat dissipation cylinder 101, a heat dissipation water tank 103 is fixedly installed on one side of the motor heat dissipation cylinder 101 close to the first heat dissipation fins 102, wherein a water tank plug 104 is threadedly connected to the top of the heat dissipation water tank 103, and a plurality of spray water pumps 105 are fixedly installed on one side of the heat dissipation water tank 103, wherein an output end of the spray water pump 105 is fixedly connected to a water inlet pipe 106, and an inlet pipe 106 is fixedly connected to the output end of the spray water pump 105. The end of the water pipe 106 is fixedly connected with an atomizing spray ring 107, and the atomizing spray ring 107 is fixedly installed inside the motor heat dissipation tube 101. A motor bracket 108 is fixedly installed on one side of the inside of the motor heat dissipation tube 101. The series motor body 109 is fixedly installed at the inner center position of the motor bracket 108. A plurality of second heat dissipation fins 110 are fixedly installed on the outer side of the series motor body 109. A motor tail cover 111 is provided at one end of the motor heat dissipation tube 101. A plurality of first fixing bolts 112 are threadedly connected to one side of the motor tail cover 111. The motor tail cover 111 is fixedly connected to the motor heat dissipation tube 101 through the first fixing bolts 112. A fan bracket 113 is fixedly installed on one side of the inside of the motor tail cover 111. The inside of the fan bracket 113 is fixedly installed. A heat dissipation fan 114 is fixedly installed, a heat dissipation mesh cover 115 is fixedly installed on one side of the motor tail cover 111 away from the fan bracket 113, a motor end cover 116 is arranged at one end of the motor heat dissipation tube 101 away from the motor tail cover 111, a plurality of second fixing bolts 117 are threadedly connected to the inner side of the motor end cover 116, the motor end cover 116 is fixedly connected to the motor heat dissipation tube 101 through the second fixing bolts 117, a plurality of heat dissipation holes 118 are opened inside the motor end cover 116, the motor end cover 116 is rotatably connected to the output end of the series-excited motor body 109, and motor legs 119 are symmetrically installed on both sides of the bottom of the motor heat dissipation tube 101. By setting the heat dissipation mechanism 1, not only the first heat dissipation fins 102 and the second heat dissipation fins 110 can be used to absorb The heat of the series motor body 109 is absorbed by the thermal effect and transferred to the outside. The heat dissipated is quickly dissipated by the heat dissipation fan 114, thereby improving the heat dissipation effect. The temperature of the series motor body 109 is detected by the temperature sensor inside the motor heat dissipation tube 101. When the temperature exceeds a certain value, the water in the heat dissipation water tank 103 is sprayed out from the atomizing spray ring 107 through the water inlet pipe 106 by the spray water pump 105. The series motor body 109 is quickly cooled by the rapid evaporation of water mist, further improving the heat dissipation effect of the series motor body 109, avoiding overheating and damage of the series motor body 109, and realizing air circulation by the heat dissipation mesh cover 115 and the heat dissipation holes 118, which is convenient for air cooling and heat dissipation.

[0031] The fixing mechanism 2 includes a fixing base 201, the inner periphery of the fixing base 201 is threadedly connected with a third fixing bolt 202, both sides of the top of the fixing base 201 are symmetrically provided with clamping grooves 203, a sprocket transmission assembly 204 is arranged on one side of the fixing base 201, the sprocket transmission assembly 204 is rotatably connected to the fixing base 201, a clamping knob 205 is fixedly installed on one side of the sprocket transmission assembly 204, a clamping bidirectional threaded rod 206 is symmetrically connected to the side of the sprocket transmission assembly 204 away from the clamping knob 205, both ends of the clamping bidirectional threaded rod 206 are symmetrically threadedly connected with a clamping thread sleeve 207, a clamping connecting plate 208 is fixedly installed on the top of the clamping thread sleeve 207 on one side, and the clamping connecting plate 208 is fixedly installed on the top of the clamping thread sleeve 207 on one side. A clamping block 209 is fixedly installed on the top. Through the fixing mechanism 2, the clamping knob 205 can be used to drive the sprocket transmission assembly 204 and the clamping bidirectional threaded rod 206 to rotate. The structural characteristics of the clamping bidirectional threaded rod 206 can be used to realize the relative sliding of the clamping threaded sleeves 207 on both sides. The clamping threaded sleeves 207 are used to drive the clamping connecting plate 208 and the clamping block 209 to slide relative to each other, and can be connected with the motor support leg 119 by snapping. Thereby, the motor heat sink 101 and the series-excited motor body 109 can be quickly installed and fixed, which is convenient for disassembly and maintenance of the series-excited motor body 109. The temperature sensor is a prior art and is not the main technical point of this case. Therefore, this case does not describe the specific structure of the temperature sensor in detail.

[0032] Working principle: Before using this anti-overheating series motor, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6As shown, first, the fixed base 201 is fixed by the third fixing bolt 202, and the entire heat dissipation mechanism 1 is placed on the fixed base 201, and the clamping knob 205 is used to drive the sprocket transmission assembly 204 and the clamping bidirectional threaded rod 206 to rotate, and the structural characteristics of the clamping bidirectional threaded rod 206 are used to realize the relative sliding of the clamping threaded sleeves 207 on both sides, and the clamping threaded sleeves 207 are used to drive the clamping connecting plate 208 and the clamping block 209 to slide relative to each other, and can be connected with the motor support leg 119 by snapping, so as to realize the rapid installation and fixation of the motor heat dissipation tube 101 and the series motor body 109, and facilitate the disassembly and maintenance of the series motor body 109, and secondly, the heat absorption effect of the first heat dissipation fins 102 and the second heat dissipation fins 110 is utilized. The heat of the series motor body 109 is absorbed and transferred to the outside, and the heat dissipated is quickly dissipated by the heat dissipation fan 114, thereby improving the heat dissipation effect. Finally, the temperature of the series motor body 109 is detected by the temperature sensor inside the motor heat dissipation tube 101. When the temperature exceeds a certain value, the water in the heat dissipation water tank 103 is sprayed out from the atomizing spray ring 107 through the water inlet pipe 106 by the spray water pump 105. The series motor body 109 is quickly cooled by the effect of rapid evaporation of water mist, thereby further improving the heat dissipation effect of the series motor body 109 and avoiding overheating and damage of the series motor body 109. The heat dissipation mesh cover 115 and the heat dissipation holes 118 are used to realize air circulation, which is convenient for air cooling and heat dissipation.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An overheat-proof series-excited motor, comprising a heat dissipation mechanism (1), and a series-excited motor body (109) installed inside the heat dissipation mechanism (1); A fixing mechanism (2) is provided at the bottom of the heat dissipation mechanism (1), and a sprocket transmission assembly (204) is provided on one side of the fixing mechanism (2); It is characterized in that Also includes: The heat dissipation mechanism (1) comprises a motor heat dissipation cylinder (101), a plurality of first heat dissipation fins (102) are fixedly mounted on one side of the motor heat dissipation cylinder (101), and a heat dissipation water tank (103) is fixedly mounted on one side of the motor heat dissipation cylinder (101) close to the first heat dissipation fins (102); The top of the heat dissipation water tank (103) is threadedly connected with a water tank plug (104), and one side of the heat dissipation water tank (103) is fixedly installed with a plurality of spray water pumps (105); The output end of the spray water pump (105) is fixedly connected to a water inlet pipe (106), and the end of the water inlet pipe (106) is fixedly connected to an atomizing spray ring (107).

2. The overheat-proof series-excited motor according to claim 1, characterized in that: The atomizing spray ring (107) is fixedly mounted inside the motor heat dissipation tube (101); a motor bracket (108) is fixedly mounted on one side of the inside of the motor heat dissipation tube (101); the series motor body (109) is fixedly mounted at the inner center position of the motor bracket (108); and a plurality of second heat dissipation fins (110) are fixedly mounted on the outer side of the series motor body (109).

3. The overheat-proof series-excited motor according to claim 2, characterized in that: A motor tail cover (111) is provided at one end of the motor heat dissipation tube (101); a plurality of first fixing bolts (112) are threadedly connected to one side of the motor tail cover (111); the motor tail cover (111) is fixedly connected to the motor heat dissipation tube (101) via the first fixing bolts (112); a fan bracket (113) is fixedly installed on one side of the interior of the motor tail cover (111); a heat dissipation fan (114) is fixedly installed on the interior of the fan bracket (113); and a heat dissipation mesh cover (115) is fixedly installed on the side of the interior of the motor tail cover (111) away from the fan bracket (113).

4. The overheat-proof series-excited motor according to claim 3, characterized in that: A motor end cover (116) is provided at one end of the motor heat dissipation tube (101) away from the motor tail cover (111); a plurality of second fixing bolts (117) are threadedly connected to one side of the interior of the motor end cover (116); the motor end cover (116) is fixedly connected to the motor heat dissipation tube (101) via the second fixing bolts (117); and a plurality of heat dissipation holes (118) are provided inside the motor end cover (116).

5. The overheat-proof series-excited motor according to claim 4, characterized in that: The motor end cover (116) is rotatably connected to the output end of the series-excited motor body (109), and motor legs (119) are symmetrically mounted on both sides of the bottom of the motor heat dissipation cylinder (101).

6. The overheat-proof series-excited motor according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixing base (201), the inner periphery of the fixing base (201) is threadedly connected with a third fixing bolt (202), the top two sides of the fixing base (201) are symmetrically provided with clamping grooves (203), the sprocket transmission assembly (204) is arranged on one side of the fixing base (201), and the sprocket transmission assembly (204) is rotatably connected to the fixing base (201).

7. The overheat-proof series-excited motor according to claim 6, characterized in that: A clamping knob (205) is fixedly mounted on one side of the sprocket transmission assembly (204); a clamping bidirectional threaded rod (206) is symmetrically connected to the side of the sprocket transmission assembly (204) away from the clamping knob (205); both ends of the clamping bidirectional threaded rod (206) are symmetrically threadedly connected to clamping threaded sleeves (207); a clamping connecting plate (208) is fixedly mounted on the top of the clamping threaded sleeve (207); and a clamping block (209) is fixedly mounted on the top of the clamping connecting plate (208).

Images