CN110601495A - Linear motion small-sized motor - Google Patents
Linear motion small-sized motor Download PDFInfo
- Publication number
- CN110601495A CN110601495A CN201910989665.2A CN201910989665A CN110601495A CN 110601495 A CN110601495 A CN 110601495A CN 201910989665 A CN201910989665 A CN 201910989665A CN 110601495 A CN110601495 A CN 110601495A
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- Prior art keywords
- iron core
- linear motion
- fixed
- magnetic conduction
- fixed iron
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- 230000033001 locomotion Effects 0.000 title claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 93
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000008094 contradictory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
Abstract
The invention relates to the technical field of motors, and discloses a small linear motion motor, which comprises: magnetic conduction frame, apron and two fixed iron cores fixed with the magnetic conduction joint, the central round hole has been seted up on the fixed iron core, the joint has the skeleton on the magnetic conduction frame, the skeleton link up to set up the skeleton cavity that is used for inlaying and establishes fixed iron core, the skeleton is including the first assembly pole that connects gradually, second assembly pole and third assembly pole, fixed the cup jointing has first coil on the first assembly pole, the lateral wall of second assembly pole has cup jointed first permanent magnet and the second permanent magnet of contradicting with first permanent magnet, the cup jointing has the second coil on the third assembly pole, be equipped with the movable iron core that is the annular setting in the magnetic conduction frame, be equipped with on the magnetic conduction frame and pass one of them fixed iron core in proper order, the axle core of movable iron core and another fixed. The output shaft of the small motor capable of controlling linear motion can be kept and locked, the driving mode of the motor is simple, direct-current voltage is adopted, and a complex driving circuit is not needed.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a linear motion small motor.
Background
A linear motor is a transmission device that directly converts electric energy into mechanical energy for linear motion without any intermediate conversion mechanism. Linear motors are also known as linear motors, push rod motors. The most common types of linear motors are flat plate, U-slot and tubular.
In the prior art, a linear motor can be applied to a vehicle-mounted image sensing or photographing device, a small linear motor can solve the switching function of moving two or more optical glass sheets with different optical characteristics into or out of an optical light path, which is required in the vehicle-mounted image sensing or photographing device, and the motor can lock the glass moving into the light path on the optical light path, so that even if the vibration is more than 50G, the position locking failure of the glass can not be caused by the impact.
The processing scheme for the requirements in the industry is that a circular hollow cup motor, a small DC brush motor or a stepping motor is matched with a helical tooth worm; or a rotary electromagnetic type structural device type; the existing treatment scheme has the following defects: the thrust ratio of the motor is small, so that the vehicle-mounted vibration requirement cannot be met; or the motor requires a complex drive circuit; the overall structure size is large, etc.
Therefore, how to control the holding position and locking of the output shaft of the linear motion small motor becomes an urgent technical problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of controlling the holding position and locking of the output shaft of the linear motion small motor.
To this end, according to a first aspect, an embodiment of the present invention discloses a linear motion small motor, including: magnetic conduction frame, with fixed apron of magnetic conduction joint and two fixed iron cores, one of them fixed iron core with magnetic conduction frame overlap joint, another fixed iron core with the apron is pegged graft, set up the central round hole that link up its both ends on the fixed iron core, the joint has the skeleton on the magnetic conduction frame, the skeleton link up to offer and is used for inlaying the skeleton cavity of first fixed iron core, the skeleton is including first assembly pole, second assembly pole and the third assembly pole that connects gradually, fixed cover has connect first coil on the first assembly pole, the lateral wall of second assembly pole have cup jointed first permanent magnet and with the second permanent magnet that first permanent magnet contradicts, fixed cover has connected the second coil on the third assembly pole, be equipped with the movable iron core that is the annular setting in the magnetic conduction frame, be equipped with on the magnetic conduction frame and pass one of them in proper order fixed iron core, The movable iron core and the other shaft core of the fixed iron core are fixedly connected with the movable iron core.
Optionally, two ends of the second assembling rod are provided with baffle plates for fixing the first permanent magnet and the second permanent magnet, and the baffle plates are square.
Optionally, one end of the framework is provided with a protruding block for facilitating the winding and positioning of the coil on the production grinding tool.
Optionally, the gap between the hollow inner wall of the framework and the movable iron core ranges from 0.1mm to 0.3 mm.
Optionally, the inner diameter of the central circular hole is larger than the outer diameter of the shaft core.
Optionally, the gap between the central circular hole and the shaft core ranges from 0.01 mm to 0.1 mm.
Optionally, an arc hole communicated with the central circular hole is formed in the fixed iron core, and the arc hole is used for reducing airflow resistance of the movable iron core during linear motion in the framework.
Optionally, the fixed iron core includes a first boss and a second boss disposed at one end of the first boss, one of the first boss and the second boss is in lap joint with a magnetic conduction hole disposed on the magnetic conduction frame, and the other one of the first boss and the second boss is in plug joint with an opening disposed on the cover plate.
The invention has the following beneficial effects: after the first coil and the second coil are electrified, corresponding magnetic poles are generated, the two fixed iron cores are excited and magnetized by the first coil and the second coil, the movable iron core is pushed to move in the hollow framework, the movable iron core is fixedly connected with the shaft core, the shaft core is driven to do linear motion, and the shaft core is locked in the framework through the attraction effect of the opposite magnetic poles of the fixed iron core and the movable iron core; the output shaft of the small motor capable of controlling linear motion can be kept and locked, the driving mode of the motor is simple, direct-current voltage is adopted, and a complex driving circuit is not needed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exploded view of a linear motion miniature motor disclosed in the present embodiment;
fig. 2 is a schematic structural diagram of a linear motion miniature motor disclosed in the present embodiment;
fig. 3 is a schematic structural diagram of a skeleton of a linear motion miniature motor disclosed in the present embodiment;
fig. 4 is a partial structural schematic view of a linear motion miniature motor disclosed in the present embodiment;
fig. 5 is a schematic structural view of a fixed iron core of a linear motion small motor disclosed in the present embodiment;
fig. 6 is a plan view of a stationary core of a linear motion small motor disclosed in the present embodiment;
fig. 7 is an exploded view of the magnetic frame and the fixed core of the linear motion small motor disclosed in this embodiment;
fig. 8 is an exploded view of a fixed core and a cover plate of the linear motion small motor disclosed in this embodiment;
fig. 9 is a view showing an initial state of magnetic poles of the small-sized motor for linear motion according to the present embodiment;
fig. 10 is a magnetic pole change diagram of the first coil of the linear motion small motor disclosed in the present embodiment;
fig. 11 is a magnetic pole change diagram of the linear motion small motor disclosed in the present embodiment after the first coil is de-energized;
fig. 12 is a diagram of the change of magnetic poles of the second coil of the linear motion small motor disclosed in this embodiment.
Reference numerals: 11. a shaft core; 12. a cover plate; 121. an opening; 13. fixing the iron core; 131. a first boss; 132. a second boss; 133. a central circular hole; 134. an arc-shaped hole; 14a, a first coil; 14b, a second coil; 15. a magnetic conduction frame; 151. a magnetic conduction hole; 16a, a first permanent magnet; 16b, a second permanent magnet; 18. a movable iron core; 19. a framework; 191a, a first mounting bar; 191b, a second mounting bar; 192. a third mounting bar; 193. a protruding block; 194. the framework is hollow.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention discloses a linear motion small motor, as shown in fig. 1, fig. 2 and fig. 3, comprising: the magnetic conduction frame 15, the cover plate 12 fixed with the magnetic conduction clamping, and two fixed iron cores 13, wherein one fixed iron core 13 is lapped with the magnetic conduction frame 15, the other fixed iron core 13 is spliced with the cover plate 12, the fixed iron core 13 is provided with a central circular hole 133 (refer to fig. 6) penetrating through two ends of the fixed iron core, the magnetic conduction frame 15 is clamped with a framework 19, the framework 19 penetrates through a framework hollow 194 for embedding the fixed iron core 13, the framework 19 comprises a first assembly rod 191a, a second assembly rod 191b and a third assembly rod 192 which are sequentially connected, the first assembly rod 191a is fixedly sleeved with a first coil 14a, the outer side wall of the second assembly rod 191b is sleeved with a first permanent magnet 16a and a second permanent magnet 16b butted with the first permanent magnet 16a, the third assembly rod 192 is fixedly sleeved with a second coil 14b, the movable iron core 18 arranged in an annular shape is arranged in the magnetic conduction frame 15, and the magnetic conduction frame 15 is provided with a magnetic, The movable iron core 18 and the shaft core 11 of the other fixed iron core 13, and the shaft core 11 is fixedly connected with the movable iron core 18.
It should be noted that, after the first coil 14a and the second coil 14b are energized, corresponding magnetic poles are generated, the two fixed iron cores 13 are excited and magnetized by the first coil 14a and the second coil 14b, so as to push the movable iron core 18 to move in the hollow 194 of the framework, and as the movable iron core 18 is fixedly connected with the shaft core 11, the shaft core 11 is driven to make linear motion, and the shaft core 11 is locked in the framework 19 through the attraction effect of the opposite magnetic poles of the fixed iron core 13 and the movable iron core 18; the holding power of the linear motion small motor is improved, the driving mode of the motor is simple, direct current voltage is adopted, and a complex driving circuit is not needed.
As shown in fig. 3, the second assembling pole 191b has blocking plates at both ends thereof for fixing the first and second permanent magnets 16a and 16b, and the blocking plates have a square shape.
As shown in fig. 3, one end of the frame 19 is provided with a protruding block 193 for facilitating the winding and positioning of the coil on the production grinding tool.
As shown in FIG. 4, the gap A between the inner wall of the framework hollow 194 and the movable core 18 is in the range of 0.1 to 0.3 mm.
As shown in fig. 4, the inner diameter of the center circular hole 133 is larger than the outer diameter of the shaft core 11.
As shown in FIG. 4, the gap B between the central circular hole 133 and the shaft core 11 is in the range of 0.01 to 0.1 mm.
As shown in fig. 1 and 6, the fixed iron core 13 is provided with an arc hole 134 communicated with the central circular hole 133, and the arc hole 134 is used for reducing the airflow resistance received by the movable iron core 18 during the linear motion in the framework 19.
As shown in fig. 5 to 8, the fixed core 13 includes first bosses 131 and second bosses 132 disposed at one ends of the first bosses 131, wherein one of the first bosses 131 is in lap joint with the magnetic conductive hole 151 disposed on the magnetic conductive frame 15, and the other first boss 131 is in plug joint with the opening 121 disposed on the cover plate 12.
The working process is as follows: as shown in fig. 9, when the motor is in a non-energized state, the inner movable iron core 18 of the motor is magnetized by the first permanent magnet 16a and the second permanent magnet 16b fixed on the frame 19, the magnetic pole of the movable iron core 18 is a single magnetic pole, and the magnetic pole of the movable iron core is consistent with the magnetic pole of the first permanent magnet 16a and the second permanent magnet 16b close to the movable iron core 18, the other magnetic pole of the first permanent magnet 16a and the second permanent magnet 16b is close to the magnetic conduction frame 15 of the motor, the magnetic conduction frame 15 and the fixed iron core 13 fixed on the magnetic conduction frame 15 or the motor cover plate 12 are also magnetized into another magnetic pole, the magnetic pole of the movable iron core 18 is different from the magnetic pole of the fixed iron core 13, the opposite poles of the magnets are attracted, and state 1 shows that the motor has a self.
As shown in fig. 10, when the first coil 14a of the motor is energized, the magnetic pole of the fixed iron core 13 fixed on the cover plate 12 will be magnetized to another magnetic pole by the excitation of the coil, at this time, the magnetic pole of the fixed iron core 13 is the same as the magnetic pole of the movable iron core 18, the movable iron core 18 is repelled, the repulsive force is the push-out force of the linear motor, the movable iron core 18 moves to another fixed iron core 13, the fixed iron core 13 has the magnetic pole attraction different from that of the movable iron core 18 under the combined action of the current excitation of the first permanent magnet 16a, the second permanent magnet 16b and the first coil 14a, until the movable iron core 18 and the fixed iron core 13 are completely attracted, and the movement of the linear motor is finished.
As shown in fig. 11, when the linear motor is moved, the current of the first coil 14a is cut off, the fixed iron core 13 and the movable iron core 18 are magnetized to have different magnetic poles by the first permanent magnet 16a and the second permanent magnet 16b, respectively, and the two can attract each other, thereby generating a second position maintaining and locking function of the linear motor.
As shown in fig. 12, when the second coil 14b of the motor is energized, the magnetic pole of the fixed iron core 13 fixed on the magnetic conduction frame 15 of the motor will be magnetized to another magnetic pole by the excitation of the coil, at this time, the magnetic pole of the fixed iron core 13 is the same as the magnetic pole of the movable iron core 18, the movable iron core 18 is repelled, the repulsive force is the push-out force of the linear motor, the movable iron core 18 moves to another fixed iron core 13, the fixed iron core 13 has the magnetic pole attraction different from that of the movable iron core 18 under the combined action of the current excitation of the first permanent magnet 16a, the second permanent magnet 16b and the second coil 14b until the movable iron core 18 is completely attracted to the fixed iron core 13, and the linear motor ends its movement and returns to the state shown in fig..
The working principle is as follows: after the first coil 14a and the second coil 14b are electrified, corresponding magnetic poles are generated, the two fixed iron cores 13 are excited and magnetized by the first coil 14a and the second coil 14b to push the movable iron core 18 to move in the hollow 194 of the framework, the movable iron core 18 is fixedly connected with the shaft core 11 to further drive the shaft core 11 to do linear motion, and the shaft core 11 is locked in the framework 19 through the attraction effect of the opposite magnetic poles of the fixed iron core 13 and the movable iron core 18; the holding power of the linear motion small motor is improved, the driving mode of the motor is simple, direct current voltage is adopted, and a complex driving circuit is not needed.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. A linear motion miniature motor comprising: magnetic conduction frame (15), with fixed apron (12) of magnetic conduction joint and two fixed iron core (13), one of them fixed iron core (13) with magnetic conduction frame (15) overlap joint, another fixed iron core (13) with apron (12) are pegged graft, set up central round hole (133) that link up its both ends on fixed iron core (13), the joint has skeleton (19) on magnetic conduction frame (15), skeleton (19) link up and offer the skeleton cavity (194) that are used for inlaying fixed iron core (13), skeleton (19) are including the first assembly pole (191a), second assembly pole (191b) and third assembly pole (192) that connect gradually, first coil (14a) have been cup jointed to fixed on first assembly pole (191a), the lateral wall of second assembly pole (191b) has cup jointed first permanent magnet (16a) and with second permanent magnet (16b) that first permanent magnet (16a) contradict, fixed cover on third assembly pole (192) has connect second coil (14b), be equipped with movable iron core (18) that are the annular setting in magnetic conduction frame (15), be equipped with on magnetic conduction frame (15) and pass one of them in proper order fixed iron core (13) movable iron core (18) and another the axle core (11) of fixed iron core (13), axle core (11) with movable iron core (18) fixed connection.
2. The small-sized linear motion motor according to claim 1, wherein the second assembling pole (191b) has blocking plates at both ends thereof for fixing the first permanent magnet (16a) and the second permanent magnet (16b), the blocking plates having a square shape.
3. The small-sized motor for linear motion of claim 1, wherein one end of the bobbin (19) is provided with a protruding block (193) for facilitating the winding and positioning of the coil on the production grinding tool.
4. The small-sized linear motion motor according to claim 1, wherein the gap between the inner wall of the skeleton hollow (194) and the movable iron core (18) is in the range of 0.1-0.3 mm.
5. The linear motion small motor according to claim 1, wherein the inner diameter of the center circular hole (133) is larger than the outer diameter of the shaft core (11).
6. The small-sized linear motion motor according to claim 5, wherein the gap between the central circular hole (133) and the shaft core (11) is in the range of 0.01-0.1 mm.
7. The small-sized linear motion motor according to claim 1, wherein the fixed iron core (13) is provided with an arc-shaped hole (134) communicated with the central circular hole (133), and the arc-shaped hole (134) is used for reducing the airflow resistance of the movable iron core (18) during linear motion in the framework.
8. The small-sized linear motion motor according to claim 1, wherein the fixed iron core (13) comprises a first boss (131) and a second boss (132) disposed at one end of the first boss (131), one of the first boss (131) is in lap joint with a magnetic conductive hole (151) disposed on the magnetic conductive frame (15), and the other first boss (131) is in plug joint with an opening (121) disposed on the cover plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989665.2A CN110601495A (en) | 2019-10-17 | 2019-10-17 | Linear motion small-sized motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989665.2A CN110601495A (en) | 2019-10-17 | 2019-10-17 | Linear motion small-sized motor |
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| Publication Number | Publication Date |
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| CN110601495A true CN110601495A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910989665.2A Pending CN110601495A (en) | 2019-10-17 | 2019-10-17 | Linear motion small-sized motor |
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| CN (1) | CN110601495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430032A (en) * | 2021-09-30 | 2022-12-06 | 浙江合道控股有限责任公司 | Motor and tattooing pen using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005237081A (en) * | 2004-02-18 | 2005-09-02 | Toshiba Mach Co Ltd | Linear synchronous motor |
| CN101051774A (en) * | 2007-02-05 | 2007-10-10 | 吴志恒 | Artificial vibrator |
| CN104702078A (en) * | 2013-12-04 | 2015-06-10 | 中国科学院宁波材料技术与工程研究所 | Permanent-magnetic linear oscillation motor and motor-driven equipment |
| CN206864265U (en) * | 2017-03-31 | 2018-01-09 | 广东金禄科技股份有限公司 | The Self-retaining electromagnet that a kind of band is oriented to |
| CN210273792U (en) * | 2019-10-17 | 2020-04-07 | 深圳市万至达电机制造有限公司 | Linear motion small-sized motor |
-
2019
- 2019-10-17 CN CN201910989665.2A patent/CN110601495A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005237081A (en) * | 2004-02-18 | 2005-09-02 | Toshiba Mach Co Ltd | Linear synchronous motor |
| CN101051774A (en) * | 2007-02-05 | 2007-10-10 | 吴志恒 | Artificial vibrator |
| CN104702078A (en) * | 2013-12-04 | 2015-06-10 | 中国科学院宁波材料技术与工程研究所 | Permanent-magnetic linear oscillation motor and motor-driven equipment |
| CN206864265U (en) * | 2017-03-31 | 2018-01-09 | 广东金禄科技股份有限公司 | The Self-retaining electromagnet that a kind of band is oriented to |
| CN210273792U (en) * | 2019-10-17 | 2020-04-07 | 深圳市万至达电机制造有限公司 | Linear motion small-sized motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430032A (en) * | 2021-09-30 | 2022-12-06 | 浙江合道控股有限责任公司 | Motor and tattooing pen using same |
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