CN114123613A - DC motor - Google Patents
DC motor Download PDFInfo
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- CN114123613A CN114123613A CN202111305577.XA CN202111305577A CN114123613A CN 114123613 A CN114123613 A CN 114123613A CN 202111305577 A CN202111305577 A CN 202111305577A CN 114123613 A CN114123613 A CN 114123613A
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- Prior art keywords
- fixedly connected
- motor
- close
- shell
- connecting block
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- 230000000149 penetrating effect Effects 0.000 claims abstract 4
- 238000003825 pressing Methods 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 8
- 239000007779 soft material Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/106—Ring-shaped filtering elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the technical field of motors, in particular to a direct current motor which comprises a base, wherein a shell is fixedly connected to the center of the outer surface of the upper end of the base, heat dissipation holes which are uniformly distributed are formed in the inner wall of the shell in a penetrating mode, an electric box is fixedly connected to the upper end of the outer surface of the shell, a sliding cylinder is connected to the inner wall of the shell in a sliding mode, rectangular holes which are uniformly distributed are formed in the outer surface of the sliding cylinder in a penetrating mode, a connecting block is fixedly connected to the upper end of the outer circular surface of the sliding cylinder, and the upper end of the connecting block extends into the electric box. According to the invention, after the temperature in the motor rises, the first memory spring pushes the connecting block to move, so that the sliding cylinder is driven to rotate to open the heat dissipation holes, the shell is hollowed, the heat dissipation effect of the motor is improved, the first memory spring can pull the connecting block to close the sliding cylinder after the motor is cooled, and the problem that the heat dissipation holes are opened for a long time, and foreign matters enter the shell to influence the work of the motor is avoided.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a direct current motor.
Background
The dc motor is a motor that converts dc electric energy into mechanical energy, and is widely used in electric traction due to its good speed regulation performance, and is classified into 3 types, namely permanent magnet, separately excited and self-excited, according to the excitation mode, wherein the self-excited is further classified into 3 types, namely parallel excitation, series excitation and compound excitation.
Chinese patent discloses a direct current motor stator module, and patent application number is CN202021491729, a direct current motor stator module belongs to direct current motor stator module technical field, which comprises an outer shell, shell surface has been seted up inlet scoop and is four point evenly distributed on the shell, the filter screen is installed to the inlet scoop inner wall, shell inner wall is installed winding bar and has four, shell surface mounting has protruding piece, protruding piece surface through connection has vent and vent to have a plurality ofly.
Above-mentioned patent is through seting up inlet scoop and ventilation hole on direct current motor's shell, and the heat of coming the production of giving the motor in the work dispels the heat, though set up the filter screen but the vent is in the open mode with the inlet scoop for a long time, and the impurity that is less than the filter mesh a bit is difficult to avoid entering into inside the motor, causes the harm to the motor, does not report to the police the back and protect the motor when the motor is heated seriously in addition.
For this purpose, a dc motor is proposed.
Disclosure of Invention
The present invention is directed to a dc motor to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a direct current motor, includes the base, the upper end surface central point of base puts fixedly connected with casing, the inner wall of casing runs through the louvre of seting up evenly distributed, the surface upper end fixed connection of position of casing has electric box, the inner wall sliding connection of casing has a slide cartridge, the surface of slide cartridge runs through the rectangular hole of seting up evenly distributed, the outer disc upper end fixedly connected with connecting block of slide cartridge, the upper end of connecting block extends to the inside of electric box, one side surface of connecting block is close to upper end position fixedly connected with first memory spring, the one end and the electric box fixed connection of first memory spring, the position fixedly connected with permanent magnet that the inner wall of casing is close to the slide cartridge, the central point of casing is provided with the rotor, the inside central point fixedly connected with pivot of rotor, the one end of pivot runs through rotor respectively, The shell extends to the outside.
The rotor of the invention drives the rotating shaft to rotate, wherein the permanent magnet ensures that the rotor can normally rotate, a large amount of heat can be generated in the shell after the motor works for a long time, a sliding cylinder in the shell can absorb the heat in the motor, and the temperature of the sliding cylinder can be transferred to a connecting block, wherein the sliding cylinder and the connecting block are made of copper materials, because copper has good thermal conductivity, the temperature of the connecting block rises after the connecting block absorbs the heat of the sliding cylinder, a first memory spring connected starts to be stretched and lengthened when the connecting block is pushed to move from one end to the other end of the electric box, because an arc-shaped groove is designed in the electric box, when the first memory spring pushes the connecting block to move, the connecting block can only be in the removal of the interior arc groove orbit along electric box, the arc motion is done to the connecting block in electric box, and then it also is the arc motion to drive the slide cartridge, the below of louvre can be moved to the rectangular hole on the slide cartridge, the louvre is opened, heat in the casing is discharged from louvre department, the louvre has evenly been seted up to the surface of casing makes the casing become the fretwork form, the discharge efficiency of the heat in the motor has been increased, after the inside temperature of motor reduces, first memory spring contracts and stimulates the connecting block, thereby it closes to drive the diaphragm on the slide cartridge to carry out the louvre, thereby avoid the louvre to be open state for a long time, there is the problem that the inside influence motor work of casing of foreign matter.
Preferably, a first elastic sheet is fixedly connected to one side of one end of the interior of the electric box, and a first lead is fixedly connected to the position of the interior of the electric box, which is close to the first elastic sheet.
When the motor works, the motor is easily damaged when the motor is in a high-temperature state for a long time, and a worker needs to be reminded when the motor is continuously high in temperature, the connecting block is pushed to be in contact with the first elastic sheet when the first memory spring is stretched and straightened, the connecting block pushes the first elastic sheet to be in contact with the first lead under the pushing action of the first memory spring, the contact end of the first lead and the connecting block is provided with an electrode plate for increasing the contact area with the first elastic sheet, so that the sensitivity is improved, the two ends of the first elastic sheet and the first lead are connected with the buzzer, the buzzer circuit is connected and gives an alarm after the first elastic sheet and the first lead are connected, the worker is reminded of paying attention to the working motor, and the motor is prevented from being burnt out due to internal high temperature.
Preferably, a second memory spring is fixedly connected to the position, close to the upper end, of the outer surface of the other side of the connecting block, a pushing block is fixedly connected to one end of the second memory spring, a second wire is connected to the position, close to the first wire, inside the electric box in a specified mode, a second elastic sheet is arranged at one end of the second wire, and the second elastic sheet is fixedly connected with the electric box.
When the motor temperature monitoring device works, although the motor gives an alarm, sometimes workers are not on site, and can not process the high-temperature motor in time, so that the motor is easily burnt out, when the temperature in the motor is continuously increased, the temperature of the connecting block is continuously increased, because the critical value of the second memory spring is higher than that of the first memory spring, when the connecting block is continuously heated, the first memory spring can not deform, the second memory spring can push the pushing block to move in the electric box, thereby driving the pushing block to push the second elastic sheet, thereby driving the second elastic sheet to be separated from the second lead, one end of the second elastic sheet and one end of the second lead are both connected with the power cord of the motor in series, after the two are separated, the power line of the motor is disconnected, and the motor stops working, so that the problem that the motor is burnt out due to continuous high-temperature working is avoided, and the service life of the motor is prolonged.
Preferably, the surface of casing is close to both ends position and all is provided with the filter screen, the filter screen adopts soft material preparation to form, the both ends fixedly connected with fixed establishment of filter screen, fixed establishment and base fixed connection.
When the motor cooling device works, after the heat dissipation holes are triggered by the heating of the motor and opened, the shell is hollowed at the moment, and foreign matters easily enter the shell to damage the motor.
Preferably, the fixing mechanism comprises a movable cavity, a push rod, a spring, a blocking ring, a cavity, a first groove, a fixing head, a clamping head, a pressing sheet and a second groove; the equal fixedly connected with fixed head in both ends of filter screen, one side surface of fixed head is located central point and puts and has seted up the fixed slot, the inside of fixed slot is provided with the dop, the lower extreme fixedly connected with push rod of dop, the one end of push rod runs through base and fixedly connected with press plate, the inside of base is close to the position of press plate and has seted up the second recess, the inside of base is close to the position of fixed head and has seted up first recess, the inside of base is close to the position of dop and has seted up movable chamber, the outer disc of push rod is close to central point and has cup jointed the spring, the outer disc of push rod is located the one end fixedly connected with separation ring of spring, the inside of casing is close to the position of spring and has seted up the cavity.
When the filter screen cleaning device works, after the filter screen is used for a period of time, floaters are adhered to the surface of the filter screen, the filter screen is easy to block, the heat dissipation effect when heat dissipation holes are opened is influenced, and the filter screen needs to be disassembled for cleaning, an operator needs to press the pressing sheet to push the push rod, the movement of the push rod drives the chuck to separate from the fixed groove, the filter screen can be pulled to take the fixed head out, the filter screen is disassembled, then the filter screen is cleaned, after the completion of the operation, the pressing sheet is pressed to drive the chuck to move out of the first groove, at the moment, the fixed head is inserted into the first groove and then the pressing sheet is loosened, the blocking ring on the push rod is driven to compress the spring when the pressing sheet is pressed, the spring compressed when the pressing sheet is not pressed pushes the blocking ring to move, the push rod and the chuck are driven to move, so that the chuck is clamped into the fixed groove, the fixation of the fixed head is realized, and the fixation of the filter screen is realized, the filter screen is convenient to detach and replace by a worker through the fixing mechanism, the movable cavity provides a movable space for the movement of the clamping head, the cavity provides a movable space for the spring and the blocking ring, and the second groove provides a movable space for the pressing sheet when the pressing sheet is pressed.
Preferably, the lower end of the fixing head is designed to be a sharp-angled inclined surface, and the upper end of the inclined surface of the clamping head is designed to be an arc-shaped structure.
When the filter screen installing device works, in order to further improve the installing efficiency of the filter screen, the pressing sheet is not pressed any more when the filter screen is installed, the fixing head is inserted into the first groove, the oblique sharp face of the fixing head can contact the arc face of the clamping head and push the clamping head to move, the clamping head can drive the push rod to move to enable the blocking ring to compress the spring, and the spring compressed when the fixing head is rubbed into the fixing groove and is in the same horizontal line with the clamping head pushes the blocking ring to move, so that the clamping head is driven to be inserted into the fixing groove, the filter screen is fixed, and the installing efficiency of the filter screen is further improved.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, after the temperature in the motor rises, the first memory spring pushes the connecting block to move, so that the sliding cylinder is driven to rotate to open the heat dissipation holes, the shell is hollowed, the heat dissipation effect of the motor is improved, the sliding cylinder is closed by pulling the connecting block after the motor is cooled, the problem that the heat dissipation holes are opened for a long time, foreign matters enter the shell to influence the work of the motor is avoided, in addition, a filter screen is arranged on the outer surface of the shell, and the problem that the foreign matters enter the shell can be avoided to a certain extent by the filter screen when the heat dissipation holes are opened.
2. When the motor is heated, the first spring can push the connecting block to tightly abut against the first elastic sheet, so that the first memory spring is communicated with the first lead, the buzzer gives an alarm to remind a worker of paying attention to the working motor, and the motor is prevented from being burnt out due to high internal temperature; when the temperature in the motor continuously rises after the alarm is given out and no person handles the alarm, the second memory spring pushes the second elastic sheet to be disconnected with the second lead, so that the power line of the motor is disconnected, the problem that the motor is burnt out due to the operation at continuous high temperature is avoided, and the service life of the motor is further prolonged.
Drawings
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 3 in accordance with the present invention;
FIG. 5 is a perspective view of the slide cartridge of the present invention;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 2 in accordance with the present invention;
fig. 7 is a cross-sectional view of the securing mechanism of the present invention.
In the figure: 1. a base; 2. a housing; 3. a rotating shaft; 4. a rotor; 5. filtering with a screen; 6. an electrical box; 7. a fixing mechanism; 71. a movable cavity; 72. a push rod; 73. a spring; 74. a barrier ring; 75. a cavity; 76. a first groove; 77. fixing grooves; 78. a fixed head; 79. clamping a head; 711. pressing the sheet; 712. a second groove; 8. a permanent magnet; 9. a second elastic sheet; 10. connecting blocks; 11. a second conductive line; 12. heat dissipation holes; 13. a slide cylinder; 14. a first memory spring; 15. a rectangular hole; 16. a second memory spring; 17. a pushing block; 18. a first spring plate; 19. a first conductive line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, the present invention provides a dc motor, which includes:
a direct current motor, as shown in fig. 1 to 5, comprises a base 1, a housing 2 is fixedly connected to the central position of the outer surface of the upper end of the base 1, heat dissipation holes 12 are uniformly distributed on the inner wall of the housing 2, an electric box 6 is fixedly connected to the upper end of the outer surface of the housing 2, a sliding cylinder 13 is slidably connected to the inner wall of the housing 2, rectangular holes 15 are uniformly distributed on the outer surface of the sliding cylinder 13, a connection block 10 is fixedly connected to the upper end of the outer circumferential surface of the sliding cylinder 13, the upper end of the connection block 10 extends into the electric box 6, a first memory spring 14 is fixedly connected to the position of the outer surface of one side of the connection block 10 close to the upper end, one end of the first memory spring 14 is fixedly connected to the electric box 6, a permanent magnet 8 is fixedly connected to the position of the inner wall of the housing 2 close to the sliding cylinder 13, and a rotor 4 is arranged at the central position of the housing 2, the inside central point of rotor 4 puts fixedly connected with pivot 3, the one end of pivot 3 runs through rotor 4, casing 2 respectively and extends to the outside.
The rotor 4 of the invention drives the rotating shaft 3 to rotate, wherein the permanent magnet 8 ensures that the rotor 4 can normally rotate, after the motor works for a long time, a large amount of heat can be generated in the shell 2, the sliding cylinder 13 in the shell 2 can absorb the heat in the motor, the temperature of the sliding cylinder 13 can be transmitted to the connecting block 10, wherein the sliding cylinder 13 and the connecting block 10 are made of copper materials, because the copper has good heat conductivity, the temperature of the connecting block 10 rises after the connecting block 10 absorbs the heat of the sliding cylinder 13, the connected first memory spring 14 starts to be stretched and lengthened after being heated, and the connecting block 10 is pushed to move from one end of the electric box 6 to the other end, because the electric box 6 is internally designed with an arc-shaped groove, when first memory spring 14 promotes connecting block 10 and removes, connecting block 10 can only be in the removal of the interior arc groove orbit along electricity box 6, connecting block 10 is the arc motion in electricity box 6, and then drive slide 13 and also be the arc motion, rectangular hole 15 on the slide 13 can move the below of louvre 12, louvre 12 is opened, heat in the casing 2 is discharged from louvre 12, louvre 12 has evenly been seted up to the surface of casing 2 makes casing 2 become fretwork form, the discharge efficiency of the heat in the motor has been increased, after the inside temperature of motor reduces, first memory spring 14 contracts and stimulates connecting block 10, thereby it is closed to louvre 12 to drive the diaphragm on the slide 13, thereby avoid 12 louvres to be the open mode for a long time, there is the foreign matter to enter into the inside problem that influences motor work of casing 2.
As an embodiment of the dc motor of the present invention, as shown in fig. 4, a first elastic piece 18 is fixedly connected to a position close to one side of an inner end of the electric box 6, and a first lead 19 is fixedly connected to a position close to the first elastic piece 18 inside the electric box 6.
When the motor works, the motor is easily damaged when the motor is in a high-temperature state for a long time, and a worker needs to be reminded when the interior of the motor is continuously high in temperature, the connecting block 10 is pushed to be in contact with the first elastic sheet 18 when the first memory spring 14 is stretched and straightened, the connecting block 10 pushes the first elastic sheet 18 to be in contact with the first lead 19 under the pushing action of the first memory spring 14, the contact end of the first lead 19 and the connecting block 10 is provided with an electrode plate for increasing the contact area with the first elastic sheet 18, so that the sensitivity is improved, the two ends of the first elastic sheet 18 and the first lead 19 are connected with the buzzer, a circuit of the buzzer is connected and gives an alarm after the first elastic sheet 18 is connected with the first lead 19, the worker is reminded of paying attention to the working motor, and the motor is prevented from being burnt due to the interior high temperature.
As an embodiment of the dc motor of the present invention, as shown in fig. 4, a second memory spring 16 is fixedly connected to the other outer surface of the connecting block 10 near the upper end, a pushing block 17 is fixedly connected to one end of the second memory spring 16, a second lead 11 is connected to a position inside the electric box 6 near the first lead 19, a second elastic sheet 9 is disposed at one end of the second lead 11, and the second elastic sheet 9 is fixedly connected to the electric box 6.
When the motor works, although the motor gives an alarm, sometimes a worker is not on site, the high-temperature motor cannot be timely processed, and the motor is easily burnt out, when the temperature in the motor continuously rises, the temperature of the connecting block 10 also continuously rises, because the critical value of the second memory spring 16 is higher than the critical value of the first memory spring 14, the first memory spring 14 cannot deform when the temperature of the connecting block 10 continuously rises, the second memory spring 16 can push the pushing block 17 to move in the electric box 6, so that the pushing block 17 is driven to push the second elastic sheet 9, the second elastic sheet 9 is driven to be separated from the second lead 11, one end of the second elastic sheet 9 and one end of the second lead 11 are both connected with the power cord of the motor in series, after the two are separated, the power cord of the motor is disconnected, the motor stops working, and the problem that the motor works at continuous high temperature and is burnt out is avoided, thereby prolonging the service life of the motor.
As an embodiment of the dc motor of the present invention, as shown in fig. 1 and 6, a filter screen 5 is disposed on an outer surface of the housing 2 near both ends, the filter screen 5 is made of a soft material, both ends of the filter screen 5 are fixedly connected to a fixing mechanism 7, and the fixing mechanism 7 is fixedly connected to the base 1.
When the motor cooling device works, after the heat dissipation holes 12 are triggered by the heating of the motor and opened, the shell 2 is hollowed at the moment, and foreign matters easily enter the shell 2 to damage the motor.
As an embodiment of the dc motor of the present invention, as shown in fig. 6 and 7, the fixing mechanism 7 includes a movable cavity 71, a push rod 72, a spring 73, a blocking ring 74, a cavity 75, a first groove 76, a fixing groove 77, a fixing head 78, a chuck 79, a pressing piece 711, and a second groove 712; the equal fixedly connected with fixed head 78 in both ends of filter screen 5, fixed head 78's one side surface is located central point and has seted up fixed slot 77, the inside of fixed slot 77 is provided with dop 79, dop 79's lower extreme fixedly connected with push rod 72, base 1 and fixedly connected with pressing plate 711 are run through to the one end of push rod 72, second recess 712 has been seted up to the inside position that is close to pressing plate 711 of base 1, first recess 76 has been seted up to the inside position that is close to fixed head 78 of base 1, the inside position that is close to dop 79 of base 1 has seted up movable chamber 71, spring 73 has been cup jointed near central point to the excircle face of push rod 72, the excircle face of push rod 72 is located the one end fixedly connected with separation ring 74 of spring 73, cavity 75 has been seted up to the inside position that is close to spring 73 of casing 2.
When the filter screen cleaning device works, after the filter screen 5 is used for a period of time, floaters are adhered to the surface of the filter screen 5, the filter screen 5 is easy to block, the heat dissipation effect when the heat dissipation holes 12 are opened is influenced, the filter screen 5 needs to be detached for cleaning, an operator needs to press the pressing sheet 711 to push the push rod 72, the push rod 72 moves to drive the chuck 79 to separate from the fixing groove 77, the fixing head 78 can be taken out by pulling the filter screen 5, the filter screen 5 is detached, then the filter screen 5 is cleaned, after the completion of the operation, the pressing sheet 711 is pressed to drive the chuck 79 to move out of the first groove 76, at the moment, the fixing head 78 is inserted into the first groove 76 and then the pressing sheet 711 is loosened, the blocking ring 74 on the push rod 72 is driven to compress the spring 73 when the pressing sheet 711 is pressed, the compressed spring 73 pushes the blocking ring 74 to move when the pressing sheet 711 is not pressed, and then the push rod 72 and the chuck 79 move, make dop 79 block advance in fixed slot 77, realized fixed and then realized the fixed of filter screen 5 to fixed head 78, be convenient for the staff to the dismantlement and the change of filter screen 5 through fixed establishment 7, wherein activity chamber 71 provides the activity space for dop 79's removal, and cavity 75 provides the activity space to spring 73 and separation ring 74, and second recess 712 is for when pressing down pressing piece 711, providing the activity space of pressing piece 711.
As an embodiment of the dc motor of the present invention, as shown in fig. 7, the lower end of the fixing head 78 is designed to have a sharp inclined surface, and the upper end of the inclined surface of the chuck 79 is designed to have an arc structure.
In the working process, in order to further improve the installation efficiency of the filter screen 5, the pressing sheet 711 is not pressed when the filter screen 5 is installed, the fixing head 78 is inserted into the first groove 76, the inclined sharp surface of the fixing head 78 contacts the arc-shaped surface of the chuck 79 and pushes the chuck 79 to move, the chuck 79 moves to drive the push rod 72 to move so that the blocking ring 74 compresses the spring 73, the compressed spring 73 pushes the blocking ring 74 to move when the fixing head 78 rubs into the fixing groove 77 and is in the same horizontal line with the chuck 79, so that the chuck 79 is driven to be inserted into the fixing groove 77, the filter screen 5 is fixed, and the installation efficiency of the filter screen 5 is further improved.
The using method comprises the following steps: after the motor of the invention generates a large amount of heat during working, the sliding cylinder 13 in the shell 2 absorbs the heat in the motor, the temperature of the sliding cylinder 13 is transferred to the connecting block 10, the temperature of the connecting block 10 rises after absorbing the heat of the sliding cylinder 13, the connected first memory spring 14 is heated and begins to be stretched and lengthened, and the connecting block 10 is pushed to move from one end to the other end of the electric box 6, because the electric box 6 is internally provided with an arc-shaped groove, when the first memory spring 14 pushes the connecting block 10 to move, the connecting block 10 can only move along the track of the inner arc-shaped groove of the electric box 6, the connecting block 10 does arc-shaped motion in the electric box 6, and further drives the sliding cylinder 13 to do arc-shaped motion, the rectangular hole 15 on the sliding cylinder 13 moves to the lower part of the heat dissipation hole 12, the heat dissipation hole 12 is opened, the heat in the shell 2 is discharged from the position 12, the outer surface of the shell 2 is uniformly provided with the heat dissipation holes 12, so that the shell 2 becomes hollow, the discharge efficiency of the heat in the motor is increased, after the temperature in the motor is reduced, the first memory spring 14 contracts and pulls the connecting block 10, so that the transverse plate on the sliding barrel 13 is driven to close the heat dissipation holes 12, the heat dissipation holes 12 are prevented from being in an open state for a long time, and foreign matters enter the shell 2 to influence the motor to work.
Then when the first memory spring 14 is stretched and straightened, the connecting block 10 is pushed to be in contact with the first elastic sheet 18, under the pushing of the first memory spring 14, the connecting block 10 pushes the first elastic sheet 18 to be in contact with the first lead wire 19, the contact end of the first lead wire 19 and the connecting block 10 is provided with an electrode plate for increasing the contact area with the first elastic sheet 18, so that the sensitivity is improved, two ends of the first elastic sheet 18 and the first lead wire 19 are connected with a buzzer, after the first elastic sheet 18 is connected with the first lead wire 19, a buzzer circuit is connected and gives an alarm to remind a worker of paying attention to a working motor, so that the motor is prevented from being burnt due to high internal temperature, when the internal temperature of the motor is continuously increased, the temperature of the connecting block 10 is continuously increased, because the critical value of the second memory spring 16 is higher than that of the first memory spring 14, when the connecting block 10 is continuously heated, the second memory spring 16 can push the pushing block 17 to move in the electric box 6, so as to drive the pushing block 17 to push the second elastic sheet 9, so as to drive the second elastic sheet 9 to be separated from the second lead 11, one end of the second elastic sheet 9 and one end of the second lead 11 are both connected with the power line of the motor in series, after the second elastic sheet 9 and the second lead 11 are separated, the power line of the motor is disconnected, and the motor stops working, so that the problem that the motor is burnt out due to continuous high-temperature working of the motor is solved, and the service life of the motor is prolonged.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A direct current motor, includes base (1), its characterized in that: the center of the outer surface of the upper end of the base (1) is fixedly connected with a shell (2), the inner wall of the shell (2) is provided with radiating holes (12) which are uniformly distributed in a penetrating way, the upper end of the outer surface of the shell (2) is fixedly connected with an electric box (6), the inner wall of the shell (2) is connected with a sliding cylinder (13) in a sliding way, the outer surface of the sliding cylinder (13) is provided with rectangular holes (15) which are uniformly distributed in a penetrating way, the upper end of the outer circular surface of the sliding cylinder (13) is fixedly connected with a connecting block (10), the upper end of the connecting block (10) extends into the electric box (6), the outer surface of one side of the connecting block (10) close to the upper end is fixedly connected with a first memory spring (14), one end of the first memory spring (14) is fixedly connected with the electric box (6), and the inner wall of the shell (2) is fixedly connected with a permanent magnet (8) close to the sliding cylinder (13), the central point of casing (2) puts and is provided with rotor (4), the inside central point of rotor (4) puts fixedly connected with pivot (3), the one end of pivot (3) runs through rotor (4), casing (2) respectively and extends to the outside.
2. A direct current motor according to claim 1, wherein: the position of one side of the inner end of the electric box (6) close to one side is fixedly connected with a first elastic sheet (18), and the position of the inner part of the electric box (6) close to the first elastic sheet (18) is fixedly connected with a first lead (19).
3. A direct current motor according to claims 1 and 2, characterized in that: the outer surface of the other side of the connecting block (10) is fixedly connected with a second memory spring (16) close to the upper end, one end of the second memory spring (16) is fixedly connected with a pushing block (17), the position of the inner part of the electric box (6) close to the first lead (19) is specified to be connected with a second lead (11), one end of the second lead (11) is provided with a second elastic sheet (9), and the second elastic sheet (9) is fixedly connected with the electric box (6).
4. A direct current motor according to claim 1, wherein: the surface of casing (2) is close to both ends position and all is provided with filter screen (5), filter screen (5) adopt soft material to make and form, the both ends fixedly connected with fixed establishment (7) of filter screen (5), fixed establishment (7) and base (1) fixed connection.
5. A direct current motor according to claim 4, wherein: the fixing mechanism (7) comprises a movable cavity (71), a push rod (72), a spring (73), a blocking ring (74), a cavity (75), a first groove (76), a fixing groove (77), a fixing head (78), a clamping head (79), a pressing sheet (711) and a second groove (712); the two ends of the filter screen (5) are fixedly connected with fixing heads (78), the outer surface of one side of each fixing head (78) is located at the center and provided with a fixing groove (77), a clamping head (79) is arranged inside the fixing groove (77), a push rod (72) is fixedly connected to the lower end of the clamping head (79), one end of the push rod (72) penetrates through the base (1) and is fixedly connected with a pressing sheet (711), a second groove (712) is formed in the position, close to the pressing sheet (711), of the inside of the base (1), a first groove (76) is formed in the position, close to the fixing head (78), of the inside of the base (1), a movable cavity (71) is formed in the position, close to the clamping head (79), of the outer circular surface of the push rod (72), a spring (73) is sleeved on the center, and a blocking ring (74) is fixedly connected to one end, close to the spring (73), of the outer circular surface of the push rod (72), a cavity (75) is formed in the shell (2) at a position close to the spring (73).
6. A direct current motor according to claim 5, wherein: the lower end of the fixing head (78) is designed to be a sharp-angled inclined surface, and the upper end of the inclined surface of the clamping head (79) is designed to be an arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111305577.XA CN114123613A (en) | 2021-11-05 | 2021-11-05 | DC motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111305577.XA CN114123613A (en) | 2021-11-05 | 2021-11-05 | DC motor |
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| CN114123613A true CN114123613A (en) | 2022-03-01 |
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| CN203574477U (en) * | 2013-12-06 | 2014-04-30 | 宁波恒特汽车零部件有限公司 | Dustproof motor |
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| CN208924029U (en) * | 2018-09-11 | 2019-05-31 | 杭州奥泰电器有限公司 | A kind of dust-proof radiating micromotor |
| CN209359762U (en) * | 2018-09-30 | 2019-09-10 | 际华三五三九制鞋有限公司 | A kind of Labor protection shoes |
| CN210297427U (en) * | 2019-10-11 | 2020-04-10 | 常州赛弗精密模具有限公司 | Motor cover plate with good heat dissipation effect |
| CN212162989U (en) * | 2020-06-01 | 2020-12-15 | 上海集强金属工业有限公司 | Multifunctional heat dissipation motor |
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2021
- 2021-11-05 CN CN202111305577.XA patent/CN114123613A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0614489A (en) * | 1992-06-25 | 1994-01-21 | Japan Servo Co Ltd | Device for connecting lead of electric motor |
| JP2007181350A (en) * | 2005-12-28 | 2007-07-12 | Namiki Precision Jewel Co Ltd | Motor structure of servo unit for radio control |
| CN202918139U (en) * | 2012-10-09 | 2013-05-01 | 董建月 | Motor with property of overheating protection |
| CN203574477U (en) * | 2013-12-06 | 2014-04-30 | 宁波恒特汽车零部件有限公司 | Dustproof motor |
| CN208112443U (en) * | 2018-05-18 | 2018-11-16 | 延安锐欣石油工程技术服务有限公司 | A kind of detection of motor fault and warning device |
| CN208924029U (en) * | 2018-09-11 | 2019-05-31 | 杭州奥泰电器有限公司 | A kind of dust-proof radiating micromotor |
| CN209359762U (en) * | 2018-09-30 | 2019-09-10 | 际华三五三九制鞋有限公司 | A kind of Labor protection shoes |
| CN210297427U (en) * | 2019-10-11 | 2020-04-10 | 常州赛弗精密模具有限公司 | Motor cover plate with good heat dissipation effect |
| CN212162989U (en) * | 2020-06-01 | 2020-12-15 | 上海集强金属工业有限公司 | Multifunctional heat dissipation motor |
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