CN210490673U - Motor with temperature protection - Google Patents

Abstract

The utility model discloses a take temperature protection motor belongs to motor technical field, and it includes motor body, motor body's the left and right sides face respectively with the opposite face overlap joint of two splint, and the back of the body face of two splint respectively with the opposite face fixed connection of two connecting plates, and the opposite face of two connecting plates respectively through the left and right sides face fixed connection of four telescopic links and temperature limit shell, the last fixed surface of temperature limit shell is connected with the set casing. This take temperature protection motor, through bimetallic strip structure, motor wire and contact, the limit for temperature shell, the connecting plate, change the handle, the second pivot, the action wheel, from the driving wheel, first pivot, the screw thread post, a screw thread section of thick bamboo, mutually support between connecting plate and the splint, thereby the phenomenon of burning out has appeared when the heat to avoided ordinary motor, the while also need not the more new take temperature protection motor of renewal, a large amount of economic losses that the motor brought have been reduced the waste of time and have been changed, the practicality of this device has been improved.

Description

Motor with temperature protection

Technical Field

The utility model belongs to the technical field of the motor, specifically be a take temperature protection motor.

Background

The motor usually generates heat after working, the heat is accumulated more and more along with the long-time use of the motor, but the common motor has no temperature protection function, when the temperature of the motor exceeds the rated use temperature and fails to stop working, the motor is damaged to a great extent, in order to reduce the problem, a small amount of motors produced at present are provided with a temperature protection function inside, so that the motors can be automatically powered off when the heat of the motors is too high, but many manufacturers do not purchase and replace the motors, because the previously used motor must be removed and re-purchased if it is to be replaced, and the removal and installation process wastes a lot of production time, therefore, the temperature protection device without replacing the motor is needed, so that other motors can be changed into motors with temperature protection.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the above-mentioned defect of prior art, the utility model provides a take temperature protection motor has solved ordinary motor and has not had the temperature protect function of taking, the problem that can not the automatic cutout power.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take temperature protection motor, includes motor body, motor body's the left and right sides face overlap joint with the opposite face of two splint respectively, and the back of the body of two splint respectively with the opposite face fixed connection of two connecting plates, and the opposite face of two connecting plates respectively through the left and right sides face fixed connection of four telescopic links and temperature limit shell, the last fixed surface of temperature limit shell is connected with the set casing, be provided with two screw thread section of thick bamboos in the set casing, and the one end that two screw thread section of thick bamboos kept away from mutually respectively with the opposite face fixed connection of two connecting plates.

Threaded cylinder female connection has the screw thread post, and two screw thread posts are through same first pivot fixed connection, the joint has from the driving wheel outside the first pivot, the joint has positioner outside the first pivot, positioner fixed connection is at the lower surface of set casing inner wall, from driving wheel and action wheel meshing, the upper surface of action wheel passes through rotary device and the lower fixed surface who changes the handle is connected, the rotary device joint is at the upper surface of set casing.

The temperature limiting shell is internally provided with a motor wire and a contact, the motor wire is in lap joint with the contact and one end of the bimetallic strip structure, the other end of the bimetallic strip structure is fixedly connected to the upper surface of the heat-conducting graphite sheet, the heat-conducting graphite sheet is fixedly connected to the temperature limiting shell, the lower surface of the heat-conducting graphite sheet is in lap joint with the upper surface of the motor body, the right side surface of the bimetallic strip structure is fixedly connected with one end of an external wire, and the other end of the external wire penetrates through the right side surface of the temperature limiting shell and extends to the outside of the temperature limiting shell.

As a further aspect of the present invention: the positioning device comprises a first bearing, the first bearing is sleeved outside the first rotating shaft, and the lower surface of the first bearing is fixedly connected with the upper surface of the inner wall of the fixed shell through a fixed block.

As a further aspect of the present invention: the rotating device comprises a second rotating shaft, the two ends of the second rotating shaft are fixedly connected with the upper surface of the driving wheel and the lower surface of the rotating handle respectively, the second rotating shaft is sleeved in a second bearing, and the second bearing is clamped on the upper surface of the fixing shell.

As a further aspect of the present invention: the bimetallic strip structure comprises a copper sheet, the lower surface of the copper sheet is in contact with a motor lead and a contact, the upper surface of the copper sheet is fixedly connected with the lower surface of an iron sheet, and the right side surfaces of the iron sheet and the copper sheet are fixedly connected with the same external lead.

As a further aspect of the present invention: the surface of the rotating handle is provided with a rubber sleeve, the opposite surfaces of the two clamping plates are provided with anti-skidding lines, and the thread directions of the two thread columns are opposite.

As a further aspect of the present invention: the upper surface and the lower surface of a screw thread section of thick bamboo all fixedly connected with slider, slider sliding connection is in the spout, and two spouts are seted up respectively at the upper surface and the lower surface of set casing inner wall.

As a further aspect of the present invention: the upper surface of limit for temperature shell inner wall and the corresponding position in top of bimetallic strip are provided with warning light wire and contact, the warning light wire passes the limit for temperature shell and is connected with the right flank electricity of warning light body with the one end of contact, warning light body fixed connection is at the left surface of limit for temperature shell.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the motor with temperature protection is characterized in that the bimetallic strip structure, a motor lead and a contact, a temperature-limiting shell, a connecting plate, a rotating handle, a second rotating shaft, a driving wheel, a driven wheel, a first rotating shaft, a threaded column, a threaded cylinder, the connecting plate and a clamping plate are matched with each other, so that when the heat of a motor body is high, the bimetallic strip structure can be bent by utilizing the principle of self expansion with heat and contraction with cold and is separated from the motor lead and the contact, thereby powering off the motor body, when the device needs to be installed, a worker can firstly place the temperature-limiting shell and the connecting plate outside the motor body, and rotate the driving wheel rightwards through the rotating handle and the second rotating shaft, so that the driving wheel can drive the two threaded columns to rotate through the driven wheel and the first rotating shaft, so that the two threaded cylinders can be close to each other under the threaded connection effect with the two threaded cylinders and drive the two clamping, thereby fix the position of this device, reuse the instrument and link to each other with motor body connected's wire and motor wire and contact, thereby install this device, thereby avoided ordinary motor to appear burning out when the heat is too high phenomenon, also need not change the new area temperature protection motor simultaneously, reduced the waste of time and changed a large amount of economic losses that new motor brought, improved the practicality of this device.

2. This take temperature protection motor through setting up the heat conduction graphite flake for when the motor produced heat, the heat conduction graphite flake can be even with the even transmission of the heat that the motor produced for bimetallic strip structure, even make this device set up the casing outside at motor body also can experience the heat that motor body during operation produced, ensured the normal use of this device.

3. This take temperature protection motor through setting up warning light wire and contact and warning light body for when the bimetallic strip structure is heated crooked, can contact with warning light wire and contact, make the warning light body shine, thereby warn the staff, avoided the staff to discover that the motor body stops the back and produce the question and touch the motor body inspection and lead to the problem that the motor body temperature burns to the staff palm often.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the left-side cross-sectional structure of the fixing shell of the present invention;

fig. 3 is an enlarged schematic structural view at a position a of the present invention;

fig. 4 is an enlarged structural schematic view of the bimetallic strip structure of the present invention;

in the figure: 1 motor body, 2 splint, 3 connecting plates, 4 telescopic links, 5 limit for temperature cases, 6 fixed cases, 7 threaded cylinder, 8 threaded columns, 9 first pivot, 10 follow driving wheels, 11 positioner, 111 first bearing, 112 fixed blocks, 12 action wheels, 13 rotary device, 131 second pivot, 132 second bearing, 14 change handle, 15 sliders, 16 chutes, 17 motor wire and contact, 18 bimetallic strip structure, 181 copper sheet, 182 iron sheet, 19 external lead, 20 warning light wire and contact, 21 warning light body, 22 heat conduction graphite flake.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-4, the utility model provides a technical solution: a motor with temperature protection comprises a motor body 1, the left side surface and the right side surface of the motor body 1 are respectively lapped with the opposite surfaces of two clamping plates 2, the opposite surfaces of the two clamping plates 2 are respectively provided with anti-slip lines, the anti-slip lines are respectively arranged on the opposite surfaces of the two clamping plates 2, so that the friction force between the two clamping plates 2 and the motor body 1 can be increased, the device is fixed more stably, the opposite surfaces of the two clamping plates 2 are respectively and fixedly connected with the opposite surfaces of two connecting plates 3, the opposite surfaces of the two connecting plates 3 are respectively and fixedly connected with the left side surface and the right side surface of a temperature limiting shell 5 through four telescopic rods 4, the telescopic rods 4 can be driven to shorten or elongate when the connecting plates 3 move left and right, so that the connecting plates 3 can drive the clamping plates 2 to move more stably, warning lamp wires and contacts 20 are arranged at positions corresponding to the upper surface of the inner wall, one end of a warning light lead and one end of a contact 20 penetrate through the temperature limiting shell 5 and are electrically connected with the right side surface of a warning light body 21, the warning light body 21 is fixedly connected with the left side surface of the temperature limiting shell 5, the warning light lead, the contact 20 and the warning light body 21 are arranged, when the bimetallic strip structure 18 is heated and bent, the bimetallic strip structure can be contacted with the warning light lead and the contact 20, the warning light body 21 is lightened, and a worker is warned, so that the problem that the temperature of the motor body 1 burns the palm of the worker when the worker finds that the motor body 1 is doubtful after stopping and touches the motor body 1 for inspection is avoided, the upper surface of the temperature limiting shell 5 is fixedly connected with a fixed shell 6, two threaded cylinders 7 are arranged in the fixed shell 6, the upper surface and the lower surface of each threaded cylinder 7 are fixedly connected with a sliding block 15, the sliding blocks 15 are slidably connected in the sliding grooves 16, and the two sliding grooves 16 are, through setting up slider 15 and spout 16 to can drive the condition that a screw thread section of thick bamboo 7 rotated together when having avoided screw thread post 8 to rotate, can drive two sliders 15 and remove about respectively in two spouts 16 when still making a screw thread section of thick bamboo 7 remove, thereby make a screw thread section of thick bamboo 7 remove more stable, and the one end that two screw thread sections of thick bamboo 7 kept away from mutually respectively with the opposite face fixed connection of two connecting plates 3.

The threaded columns 8 are connected with the thread cylinders 7 in a threaded manner, the thread directions of the two threaded columns 8 are opposite, the two threaded columns 8 can drive the two threaded columns 7 to approach or separate from each other when rotating simultaneously by arranging the thread directions of the two threaded columns 8 to be opposite, so that the device is convenient for workers to use, the two threaded columns 8 are fixedly connected with the first rotating shaft 9 through the same, the driven wheel 10 is clamped outside the first rotating shaft 9, the positioning device 11 comprises a first bearing 111, the first bearing 111 is sleeved outside the first rotating shaft 9, the lower surface of the first bearing 111 is fixedly connected with the upper surface of the inner wall of the fixed shell 6 through a fixed block 112, the first rotating shaft 9 can rotate in the first bearing 111 when rotating through arranging the first bearing 111, and the first rotating shaft 9 can rotate through a supporting point, so that the first rotating shaft 9 drives the two threaded columns 8 to rotate more stably, the positioning device 11 is fixedly connected to the lower surface of the inner wall of the fixed shell 6, the driven wheel 10 is meshed with the driving wheel 12, the upper surface of the driving wheel 12 is fixedly connected with the lower surface of the rotating handle 14 through the rotating device 13, the outer surface of the rotating handle 14 is provided with a rubber sleeve, the rubber sleeve is arranged outside the rotating handle 14 and has certain skid resistance and flexibility, the rotating handle 14 has better comfort while increasing the friction force with the palm of a worker, the practicability of the device is further improved, the rotating device 13 is clamped on the upper surface of the fixed shell 6, the rotating device 13 comprises a second rotating shaft 131, two ends of the second rotating shaft 131 are respectively fixedly connected with the upper surface of the driving wheel 12 and the lower surface of the rotating handle 14, the second rotating shaft 131 is sleeved in the second bearing 132, the second bearing 132 is clamped on the upper surface of the fixed shell 6, through the arrangement of the second bearing 132, the second rotating shaft 131 can rotate in the second bearing 132 when rotating, so that the second rotating shaft 131 drives the driving wheel 12 to rotate more stably.

The temperature limiting shell 5 is internally provided with a motor lead and a contact 17, the motor lead and the contact 17 are lapped with one end of a bimetallic strip structure 18, the bimetallic strip structure 18 comprises a copper sheet 181, the lower surface of the copper sheet 181 is contacted with the motor lead and the contact 17, the upper surface of the copper sheet 181 is fixedly connected with the lower surface of an iron sheet 182, the right side surfaces of the iron sheet 182 and the copper sheet 181 are fixedly connected with a same external lead 19, by arranging the copper sheet 181 and the iron sheet 182 and arranging the copper sheet 181 below the iron sheet 182, due to the difference of expansion coefficients of the copper sheet 181 and the iron sheet 182, when the temperature changes, the deformation of the copper sheet 181 is larger than that of the iron sheet 182, so that the whole bimetallic strip structure 18 can bend to one side of the iron sheet 182, thereby generating the deformation and separating from the motor lead and the contact 17, thereby powering off the motor body 1, the other end of the bimetallic strip structure 18 is fixedly connected, heat conduction graphite flake 22 fixed connection is in limit for temperature shell 5, through setting up heat conduction graphite flake 22, make when the motor produces heat, heat conduction graphite flake 22 can be even with the even transmission for bimetallic strip structure 18 of the heat that the motor produced, make this device even set up the casing outside at motor body 1 and also can feel the heat that motor body 1 during operation produced, the normal use of this device has been ensured, the lower surface of heat conduction graphite flake 22 and motor body 1's upper surface overlap joint, bimetallic strip structure 18's the right flank and external conductor 19's one end fixed connection, external conductor 19's the other end passes limit for temperature shell 5's the right flank and extends to its outside.

The utility model discloses a theory of operation does:

s1, when the device needs to be installed, a worker can place the temperature limiting shell 5 and the connecting plate 3 outside the motor body 1, and rotate the driving wheel 12 rightwards through the rotating handle 14 and the second rotating shaft 131, so that the driving wheel 12 can drive the two threaded columns 8 to rotate through the driven wheel 10 and the first rotating shaft 9, the two threaded cylinders 7 can approach each other under the effect of threaded connection with the two threaded cylinders 7, and the two connecting plates 3 drive the two clamping plates 2 to approach each other, so that the position of the device is fixed;

s2, connecting a lead connected with the motor body 1 with a motor lead and a contact 17 by using a tool, so as to install the device, when the heat of the motor body 1 is high, the bimetallic strip structure 18 can be bent by utilizing the principle of self expansion with heat and contraction with cold and is separated from the motor lead and the contact 17, so as to cut off the power of the motor body 1, and when the device needs to be disassembled, maintained and repaired, the lead connected with the motor body 1 and the motor lead can be separated from the contact 17;

s3, the driving wheel 12 is rotated leftwards through the rotating handle 14 and the second rotating shaft 131, so that the driving wheel 12 can drive the two threaded columns 8 to rotate through the driven wheel 10 and the first rotating shaft 9, the two threaded cylinders 7 can be close to each other under the effect of threaded connection with the two threaded cylinders 7, and the two clamping plates 2 are driven to be away from each other through the two connecting plates 3, and therefore a worker can detach the device to overhaul and maintain the device.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (7)

1. The utility model provides a take temperature protection motor, includes motor body (1), its characterized in that: the left side surface and the right side surface of the motor body (1) are respectively lapped with opposite surfaces of the two clamping plates (2), opposite surfaces of the two clamping plates (2) are respectively fixedly connected with opposite surfaces of the two connecting plates (3), the opposite surfaces of the two connecting plates (3) are respectively fixedly connected with the left side surface and the right side surface of the temperature limiting shell (5) through four telescopic rods (4), the upper surface of the temperature limiting shell (5) is fixedly connected with a fixed shell (6), two threaded cylinders (7) are arranged in the fixed shell (6), and one ends, far away from the two threaded cylinders (7), are respectively and fixedly connected with the opposite surfaces of the two connecting plates (3);

the thread cylinder (7) is internally connected with thread columns (8), the two thread columns (8) are fixedly connected through a same first rotating shaft (9), a driven wheel (10) is clamped outside the first rotating shaft (9), a positioning device (11) is clamped outside the first rotating shaft (9), the positioning device (11) is fixedly connected to the lower surface of the inner wall of the fixed shell (6), the driven wheel (10) is meshed with a driving wheel (12), the upper surface of the driving wheel (12) is fixedly connected with the lower surface of a rotating handle (14) through a rotating device (13), and the rotating device (13) is clamped on the upper surface of the fixed shell (6);

be provided with motor wire and contact (17) in limit for temperature shell (5), motor wire and contact (17) and the one end overlap joint of bimetallic strip structure (18), the other end fixed connection of bimetallic strip structure (18) is at the upper surface of heat conduction graphite flake (22), heat conduction graphite flake (22) fixed connection is in limit for temperature shell (5), the lower surface of heat conduction graphite flake (22) and the upper surface overlap joint of motor body (1), the right flank of bimetallic strip structure (18) and the one end fixed connection of external conductor (19), the other end of external conductor (19) passes the right flank of limit for temperature shell (5) and extends to its outside.

2. The motor with temperature protection according to claim 1, wherein: the positioning device (11) comprises a first bearing (111), the first bearing (111) is sleeved outside the first rotating shaft (9), and the lower surface of the first bearing (111) is fixedly connected with the upper surface of the inner wall of the fixed shell (6) through a fixed block (112).

3. The motor with temperature protection according to claim 1, wherein: rotary device (13) include second pivot (131), the both ends of second pivot (131) respectively with the upper surface of action wheel (12) and the lower fixed surface who changes handle (14) is connected, second pivot (131) cup joint in second bearing (132), second bearing (132) joint is at the upper surface of set casing (6).

4. The motor with temperature protection according to claim 1, wherein: the bimetallic strip structure (18) comprises a copper sheet (181), the lower surface of the copper sheet (181) is in contact with a motor lead and a contact (17), the upper surface of the copper sheet (181) is fixedly connected with the lower surface of an iron sheet (182), and the right side surfaces of the iron sheet (182) and the copper sheet (181) are fixedly connected with the same external lead (19).

5. The motor with temperature protection according to claim 1, wherein: the outer surface of the rotating handle (14) is provided with a rubber sleeve, the opposite surfaces of the two clamping plates (2) are provided with anti-skidding threads, and the thread directions of the two thread columns (8) are opposite.

6. The motor with temperature protection according to claim 1, wherein: the upper surface and the lower surface of the threaded cylinder (7) are fixedly connected with sliding blocks (15), the sliding blocks (15) are connected in sliding grooves (16), and the two sliding grooves (16) are respectively arranged on the upper surface and the lower surface of the inner wall of the fixed shell (6).

7. The motor with temperature protection according to claim 1, wherein: the upper surface of limit for temperature shell (5) inner wall and the corresponding position in top of bimetallic strip are provided with warning light wire and contact (20), the warning light wire passes limit for temperature shell (5) and is connected with the right flank electricity of warning light body (21) with the one end of contact (20), warning light body (21) fixed connection is at the left surface of limit for temperature shell (5).

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