Claw pole type permanent magnet stepping motor

Abstract

The utility model relates to the technical field of stepping motors, and discloses a claw pole type permanent magnet stepping motor, which solves the problems in the background technology, and comprises a stepping motor main body and a connecting wire, the circumferential surface of the stepping motor main body is provided with a plurality of radiating fins, the radiating fins are uniformly distributed at equal intervals, and the connecting wire is connected with the stepping motor main body. A shell is fixedly connected to the top of the stepping motor body, an interface is formed in the top of the shell, a fixing block is fixedly connected to the position, located on the outer side face of the interface, of the top of the shell, a connector is fixedly connected to the bottom of a connecting wire, an inserting groove is formed in the top of the interface, and the connector can be inserted into the inserting groove. A sliding groove is formed in the top of the shell, a limiting mechanism capable of limiting the connecting line is arranged in an inner cavity of the sliding groove, and the effects that the interface and the connector can be limited, so that the stability of the interface and the connector is improved, and the interface and the connector are prevented from loosening are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stepping motors, in particular to a claw-pole permanent magnet stepping motor. Background Art

[0002] Claw-pole permanent magnet stepper motors are stepper motors whose rotors are made of permanent magnet steel and whose stators are processed into claw-shaped tooth poles. They are also called PM stepper motors. Claw-pole permanent magnet stepper motors are usually used in computer peripherals, photographic systems, valve control, CNC machine tools, automatic winding machines and other industries. Claw-pole permanent magnet stepper motors usually include rotors, stators and housings, and existing stepper motors are generally connected through connectors with special connecting wires.

[0003] However, the interface of the stepper motor on the market is generally directly plugged in when connected, which will generate vibration when the stepper motor is working. Long-term vibration will cause the interface of the stepper motor and the connector of the connecting wire to loosen, resulting in poor contact and even damage to the stepper motor. For this reason, we propose a claw-pole permanent magnet stepper motor. Utility Model Content

[0004] In order to solve the problem that the interface of the stepper motor on the market and the connector of the connecting line are generally directly plugged in when connected, which will generate vibration when the stepper motor is working, and long-term vibration will cause the connector of the interface of the stepper motor and the connecting line to loosen, thereby causing poor contact and even causing damage to the stepper motor, the utility model provides the following technical solutions: a claw-pole permanent magnet stepper motor, comprising a stepper motor body and a connecting line, the circumferential surface of the stepper motor body is provided with a plurality of heat sinks, and the plurality of heat sinks are evenly distributed at equal intervals, the top of the stepper motor body is fixedly connected with a shell, the top of the shell is provided with an interface, the top of the shell is fixedly connected with a fixing block on the outer side of the interface, the bottom of the connecting line is fixedly connected with a connector, the top of the interface is provided with a slot, the connector can be plugged in the slot, the top of the shell is provided with a slide groove, and the inner cavity of the slide groove is provided with a limiting mechanism that can limit the connecting line.

[0005] Preferably, the limiting mechanism includes a spring, a slide plate and a block, one end of the spring is fixedly connected to the inner wall of the slide groove, the slide plate is slidably inserted in the slide groove, the other end of the spring is fixedly connected to the side of the slide plate, and the block is fixedly connected to the other side of the slide plate.

[0006] Preferably, a card slot is provided on the side of the connecting line, and the card block can be inserted into the card slot.

[0007] Preferably, a slide bar is fixedly connected to the top of the slide plate, and the top of the slide bar is located outside the top of the shell.

[0008] Preferably, there are two groups of the limiting mechanisms, the two groups of the limiting mechanisms are respectively located on both sides of the inner cavity of the shell, and the two groups of the limiting mechanisms are symmetrically arranged.

[0009] Preferably, the number of springs in each group of the limiting mechanisms is two, and the two springs are respectively fixedly connected to the top and the bottom of the same side of the inner wall of the slide groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By sliding the connecting wire downward, the connecting wire will drive the connector to slide downward, and the connector will slide downward and be inserted into the slot. When the connecting wire slides downward, it will squeeze the card block, and the card block will drive the slide plate to slide, and the slide plate will squeeze the spring when it slides. When the card block slides into the slide slot, the connecting wire continues to slide downward. When the card block is parallel to the card slot, the spring will rebound the slide plate, and the slide plate will drive the card block to slide in the direction of the card slot. When the card block is slid and inserted into the card slot, the connection between the connector and the interface can be realized. The card block can limit the connecting wire to prevent the connector and the interface from loosening, thereby realizing the ability to limit the interface and the connector, thereby improving the stability of the interface and the connector and avoiding the loosening of the interface and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a front view structural schematic diagram of the utility model as a whole;

[0014] Figure 2 It is a schematic diagram of a partial cross-section structure of the utility model as a whole;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the housing of the utility model when viewed from the front;

[0016] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0017] In the figure: 1. stepper motor body; 2. heat sink; 3. housing; 4. interface; 5. slot; 6. fixing block; 7. connecting wire; 8. connector; 9. slide groove; 10. spring; 11. slide plate; 12. slide rod; 13. block; 14. slot. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Depend on Figure 1-4 The utility model includes a stepper motor body 1 and a connecting line 7. The circumferential surface of the stepper motor body 1 is provided with a plurality of heat sinks 2, and the plurality of heat sinks 2 are evenly distributed at equal intervals. The top of the stepper motor body 1 is fixedly connected with a shell 3, and the top of the shell 3 is provided with an interface 4. The top of the shell 3 is fixedly connected with a fixing block 6 located on the outer side of the interface 4, and the bottom of the connecting line 7 is fixedly connected with a connector 8. The top of the interface 4 is provided with a slot 5, and the connector 8 can be plugged into the slot 5. The top of the shell 3 is provided with a slide groove 9, and the inner cavity of the slide groove 9 is provided with a limiting mechanism that can limit the connecting line 7.

[0020] Depend on Figure 4 It is given that the limiting mechanism includes a spring 10, a slide plate 11 and a block 13. One end of the spring 10 is fixedly connected to the inner wall of the slide groove 9, the slide plate 11 is slidably inserted in the slide groove 9, the other end of the spring 10 is fixedly connected to the side of the slide plate 11, and the block 13 is fixedly connected to the other side of the slide plate 11. The limiting mechanism can limit the connecting line 7, thereby improving the stability of the interface 4 and the connector 8.

[0021] Depend on Figure 4 It is shown that a card slot 14 is provided on the side of the connecting line 7 , and the card block 13 can be inserted into the card slot 14 . The card slot 14 can limit the card block 13 , thereby limiting the connecting line 7 .

[0022] Depend on Figure 4 It is shown that the top of the slide plate 11 is fixedly connected with a slide rod 12 , the top of the slide rod 12 is located outside the top of the housing 3 , and the slide rod 12 can drive the slide plate 11 to slide.

[0023] Depend on Figure 3 It is given that there are two groups of limiting mechanisms, which are respectively located on both sides of the inner cavity of the shell 3 and are symmetrically arranged. The two groups of limiting mechanisms can make the connecting line 7 more balanced and prevent the connecting line 7 from tilting.

[0024] Depend on Figure 4 It is given that there are two springs 10 in each set of limiting mechanisms, and the two springs 10 are respectively fixedly connected to the top and bottom of the same side of the inner wall of the slide groove 9. The two springs 10 can make the slide plate 11 more stable when sliding and prevent the slide plate 11 from tilting.

[0025] Working principle: When the interface 4 and the connector 8 need to be connected during work, first slide the connecting wire 7 downward, the connecting wire 7 will drive the connector 8 to slide downward, and the connector 8 will slide downward and be inserted into the slot 5. When the connecting wire 7 slides downward, it will squeeze the block 13, and the block 13 will drive the slide plate 11 to slide, and the slide plate 11 will squeeze the spring 10 when it slides. When the block 13 slides into the slide groove 9, continue to slide the connecting wire 7 downward. When the block 13 is parallel to the slot 14, the spring 10 will rebound the slide plate 11, and the slide plate 11 will drive the block 13 to slide in the direction of the slot 14. When the block 13 is slid and inserted into the slot 14, the connection between the connector 8 and the interface 4 can be realized, and the block 13 can limit the connecting wire 7 to prevent the connector 8 and the interface 4 from loosening.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A claw-pole permanent magnet stepping motor, comprising a stepping motor body (1) and a connecting wire (7), characterized in that: The circumferential surface of the stepper motor body (1) is provided with a plurality of heat sinks (2), and the plurality of heat sinks (2) are evenly distributed at equal intervals. The top of the stepper motor body (1) is fixedly connected to a housing (3), the top of the housing (3) is provided with an interface (4), the top of the housing (3) is fixedly connected to a fixing block (6) located on the outer side of the interface (4), the bottom of the connecting line (7) is fixedly connected to a connector (8), the top of the interface (4) is provided with a slot (5), and the connector (8) can be plugged into the slot (5), the top of the housing (3) is provided with a slide groove (9), and the inner cavity of the slide groove (9) is provided with a limiting mechanism capable of limiting the connecting line (7).

2. A claw-pole permanent magnet stepper motor according to claim 1, characterized in that: The limiting mechanism comprises a spring (10), a slide plate (11) and a clamping block (13); one end of the spring (10) is fixedly connected to the inner wall of the slide groove (9); the slide plate (11) is slidably inserted in the slide groove (9); the other end of the spring (10) is fixedly connected to the side surface of the slide plate (11); and the clamping block (13) is fixedly connected to the other side surface of the slide plate (11).

3. A claw-pole permanent magnet stepper motor according to claim 2, characterized in that: A card slot (14) is provided on the side of the connecting line (7), and the card block (13) can be plugged into the card slot (14).

4. A claw-pole permanent magnet stepping motor according to claim 3, characterized in that: The top of the slide plate (11) is fixedly connected to a slide rod (12), and the top of the slide rod (12) is located outside the top of the housing (3).

5. A claw-pole permanent magnet stepping motor according to claim 4, characterized in that: There are two groups of the limiting mechanisms, which are respectively located on two sides of the inner cavity of the outer shell (3), and the two groups of limiting mechanisms are symmetrically arranged.

6. A claw-pole permanent magnet stepping motor according to claim 5, characterized in that: The number of springs (10) in each group of the limiting mechanisms is two, and the two springs (10) are respectively fixedly connected to the top and bottom of the same side of the inner wall of the slide groove (9).

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