CN207835206U - A kind of stepper motor with small end minor structure - Google Patents

Abstract

The utility model discloses a kind of stepper motor with small end minor structure, including outlet box and coil rack, coil rack includes skeleton main body and skeleton terminal；Skeleton terminal include winding portion, external connection part and be arranged between said two devices in the middle interconnecting piece point for gathering shape distribution, one end of the winding portion is used for coiling, the other end of winding portion is connect with one end of middle interconnecting piece point, and the other end of the middle interconnecting piece point is connect with external connection part；The spacing L2 of the winding portion of the skeleton terminal is more than the spacing L1 of external connection part；The spacing in the middle interconnecting piece point for gathering shape distribution is set as：Its one end being connect with winding portion is tapered into the one end being connect with external connection part.The utility model solves the connectivity problem of the stepper motor when cancelling wiring board transition connection, while not influencing the coiling of coil rack.

Description

A kind of stepper motor with small end minor structure

Technical field

The utility model is related to a kind of stepper motors with small end minor structure, belong to stepper motor technical field.

Background technology

Micro-machine is that the every field such as factory automation, family life automation, office automation are widely applied heavy Want basic product, common micro-machine according to the connection type difference of lead is divided into leaded motor and without lead motor.Its Middle no lead motor is then to only have connector port, customer's connecting line port to be connect with motor by matched interfaces on motor, such as Disclosed in patent CN103401348B.

When customer's connecting line port needs small terminal, i.e., when the spacing between terminal is smaller, motor connectors port needs Want matching, i.e. spacing between terminal in motor connectors port also wants matching and becomes smaller.Patent document Motor disclosed in CN103401348B, using a butt, twice after equidistant bending with customer's connecting line port match, when need When wanting terminal spacing smaller, the spacing of terminal winding portion is also corresponding smaller.In technique, stator winding enameled wire is wound to Terminal winding portion can not cross line when coiling in the spacing of terminal, cannot achieve coiling, Wu Faman if terminal spacing is too small Sufficient customer demand.

As disclosed in CN101924452B patents, in no lead stepper motor connector port, using wiring substrate The bonder terminal on the terminal and connector shell at motor skeleton end is connected, realizes the conducting on circuit.In this way Transition, transition between the big spacing of motor skeleton terminal and the small spacing of customer's connecting line port terminal may be implemented and connect It connects.But this wiring board connection type can cause a series of problem：First, unsmooth can draw of wiring board internal electric connection The problem of generator windings open circuit；Secondly, wiring board uses twice welding sequence, thus may occur to weld rosin joint, and pad is de- It falls, tin sweat(ing) is splashed to inside motor, causes the problems such as stuck；Finally, wiring board welding sequence cost is higher.In addition, using PCB After plate, pcb board is mounted in connector shell so that connector shell radial height becomes larger, when client's use occasion is installed When size is restricted, installation requirement cannot be satisfied.

Invention content

Technical problem to be solved in the utility model is：It overcomes the deficiencies of the prior art and provide a kind of with small terminal The stepper motor of structure, solves the connectivity problem of the stepper motor when cancelling wiring board transition connection, while not influencing coil The coiling of skeleton.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of stepping with small end minor structure Motor, including coil rack, the coil rack include skeleton main body, terminal holding member and are fixedly connected on terminal support portion Skeleton terminal on part；The skeleton terminal includes winding portion, external connection part and is arranged between said two devices Middle interconnecting piece point, the spacing L2 of the winding portion of the skeleton terminal are more than the spacing L1 of external connection part.

Further, one end of the winding portion of the skeleton terminal is used for coiling, and the other end of winding portion is in Between coupling part one end connection, the other end of the middle interconnecting piece point connect with external connection part, winding portion, centre Coupling part and external connecting are divided into the integral structure by bending twice.

Further, the spacing of the middle interconnecting piece point is set as：Connect from the one end being connect with winding portion to outside One end of socket part point connection tapers into.

Further, the stepper motor further includes outlet box, and the outlet box is used to cover on the skeleton of the coil rack On terminal.

Further, the winding portion and the middle interconnecting piece point have certain angle, the middle interconnecting piece point with External connection part has certain angle, also, the skeleton terminal is the Z-shaped structure of secondary bending structure on the whole.

Further, the skewed slot for being pressed into middle interconnecting piece point is provided at the lower surface of the terminal holding member, in Between coupling part be pressed into and be stuck in skewed slot.

Further, it is inserted into from the upper surface of terminal holding member to the skeleton terminal word order, by once bending, Middle interconnecting piece is partially pressed into skewed slot, is formed in the winding portion positioned at vertical direction, and indentation skewed slot and is located at horizontal direction Middle interconnecting piece point, the skeleton terminal that will stretch out skewed slot passes through twice bended, forms the external connecting positioned at vertical direction Point.

Further, the winding portion has the sharp of a bending for one end of coiling relative to the other end of winding portion Angle α.

Further, the outside of the outlet box is B to the distance between motor outer diameter, and motor center is arrived on the outside of outlet box Distance is A, B：Ranging from the 0.25~0.29 of A.

Further, the outside of the outlet box is 4.4mm to the distance between motor outer diameter B, is arrived on the outside of the outlet box The distance A of motor center is 16.4mm.

Above-mentioned technical proposal is used, the utility model has advantageous effect below：

1) the utility model use in gather the middle interconnecting piece point of shape distribution by winding portion and external connection part into Row transition connects, and the spacing of middle interconnecting piece point is gradually reduced from inside to outside, and the larger winding portion of spacing can facilitate coiling, Wire winding needle can cross line doubling from the gap of skeleton terminal, and small-pitch external connection part, which disclosure satisfy that, has smaller Away from customer's connecting line port matching connection request, to replace wiring board transition connect；

2) the utility model can be completed only with skeleton terminal and be connect with the matching of external customer's connecting line port, Wiring board transition connection is eliminated, the cost of product on the one hand can be reduced, on the other hand avoids the failure of wiring board welding Pattern reduces the bad problem caused by wiring board welds, such as：Copper foil falls off, and pcb board welding falls off, rosin joint etc.；

3) it due to eliminating wiring board transition connection, is directly connected to using the skeleton terminal of variation spacing, makes outlet box diameter Reduce to thickness, stepper motor overall radial dimension reduces, and facilitates installation, meets the use demand of client, is suitable for smaller space Product in range uses；

4) the utility model is arranged on terminal holding member in gathering the skewed slot of shape, can be in skeleton terminal bending Skeleton terminal is moved towards into progress bending along skewed slot, is convenient for the bending of needle, and guiding role, skeleton end are played to skeleton terminal Son is fitted close with skewed slot, is sprung back after being also prevented from skeleton terminal bending；The spacing of skewed slot meets size requirement, i.e. skeleton end As long as in son indentation skewed slot, the spacing deviation of the end of skeleton terminal is not too large, consequently facilitating the spacing of control skeleton terminal, Reduce the accumulated error in technique manufacturing process.

Description of the drawings

Fig. 1 is the assembling structure schematic diagram of the outlet box and coil rack of the utility model；

Fig. 2 is the dimensional structure diagram of the coil rack of the utility model；

Fig. 3 is the upward view of the skeleton main body of the utility model；

Fig. 4 is the assembling stereogram of the skeleton main body and skeleton terminal of the utility model；

Fig. 5 is the assembling structure vertical view of the skeleton main body and skeleton terminal of the utility model；

Fig. 6 is the partial enlarged view at the skeleton terminal of the coil rack of the utility model；

Fig. 7 is the assembly process figure of the skeleton terminal of the utility model；

Fig. 8 is the integrally-built vertical view of the stepper motor of the utility model；

Fig. 9 is the integrally-built side view of the stepper motor of the utility model.

Specific implementation mode

In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached Figure, is described in further detail the utility model.

As shown in Fig. 1 to 7, a kind of stepper motor with small end minor structure, including coil rack 2, the coil rack 2 Including skeleton main body 2-2, terminal holding member 2-4 and the skeleton terminal 2-1 being fixedly connected on terminal holding member 2-4, end Sub- support member 2-4 is connected with skeleton main body 2-2；The skeleton terminal 2-1 includes winding portion 2-1-1, external connection Part 2-1-3 and be arranged between said two devices in gather shape distribution middle interconnecting piece divide 2-1-2, the winding portion One end of 2-1-1 is used for coiling, and the other end of winding portion 2-1-1 is connect with one end of middle interconnecting piece point, and the centre connects The other end of socket part point is connect with external connection part 2-1-3, and winding portion 2-1-1, middle interconnecting piece divide 2-1-2 and outside Coupling part 2-1-3 is the integral structure Jing Guo bending twice；The spacing L2 of the winding portion 2-1-1 of the skeleton terminal 2-1 Spacing L1 more than external connection part 2-1-3；It is described to divide the spacing of 2-1-2 to be arranged in the middle interconnecting piece for gathering shape distribution For：It is tapered into from the one end being connect with winding portion 2-1-1 to the one end being connect with external connection part 2-1-3.

Preferably, the stepper motor further includes outlet box 1, and the outlet box 1 is used to cover on the bone of the coil rack 2 On the sub- 2-1 of frame end, play a protective role to skeleton terminal 2-1.

Preferably, as shown in Fig. 1,2,4,6, the winding portion 2-1-1 divides 2-1-2 to have one with the middle interconnecting piece Clamp angle, the middle interconnecting piece divide 2-1-2 and external connection part 2-1-3 to have certain angle, also, the skeleton terminal It is the Z-shaped structure of secondary bending structure on the whole.In the present embodiment, winding portion 2-1-1 divides 2-1-2 to hang down with middle interconnecting piece Direct join connects, and middle interconnecting piece divides 2-1-2 vertical with external connection part 2-1-3 and connect, to make skeleton terminal on the whole In Z-shaped structure.

Preferably, as shown in Fig. 3,4,5, in order to improve the operability of skeleton terminal 2-1 bendings, while to skeleton terminal Guiding role is played in the bending of 2-1, is provided at the lower surface of the terminal holding member 2-4 for being pressed into middle interconnecting piece point The skewed slot 2-3 of 2-1-2 to arrange in shape is gathered, middle interconnecting piece divide 2-1-2 to be pressed into and are stuck in skewed slot 2-3.It, can be with when indentation Skeleton terminal 2-1 is carried out bending by the trend along skewed slot 2-3, and is stuck in skewed slot 2-3, divides 2- convenient for control middle interconnecting piece The spacing of the spacing of 1-2, skewed slot 2-3 meets size requirement, as long as middle interconnecting piece divides in 2-1-2 indentation skewed slots 2-3, centre connects Socket part divides the spacing deviation of the ends 2-1-2 not too large, reduces the accumulated error in technique manufacturing process.

Preferably, as shown in fig. 7, the skeleton terminal 2-1 word orders from the upper surface of terminal holding member 2-4 insert Enter, by once bending, middle interconnecting piece divides 2-1-2 to be pressed into skewed slot 2-3, forms the winding portion 2-1-1 positioned at vertical direction, And the middle interconnecting piece positioned at horizontal direction in indentation skewed slot 2-3 divides 2-1-2, and the skeleton terminal for stretching out skewed slot 2-3 is passed through Twice bended is crossed, the external connection part 2-1-3 positioned at vertical direction is formed.

Preferably, as shown in fig. 6, the winding portion 2-1-1 is used for one end of coiling relative to winding portion 2-1-1's The other end has the sharp angle α of a bending.When in view of enameled wire coiling, due to tension, enameled wire can be tight in coil On skeleton, broken string is easily caused in the transportational process that circulates and causes bad, the one end of winding portion 2-1-1 is bent backwards One sharp angle α, to make on the online ring framework of enamel-cover line relaxation.

Preferably, as shown in figure 8, the outside of the outlet box 1 to the distance between motor outer diameter be B, on the outside of outlet box Distance to motor center is A, B：Ranging from 0.25~0.29 (the containing boundary value) of A.

Preferably, as shown in Figure 8,9, the outside of the outlet box 1 to the distance between motor outer diameter B be 4.4mm, it is described The distance A that motor center is arrived on the outside of outlet box is 16.4mm.

As shown in Fig. 1,3,4 and 7, the distance by skeleton terminal 2-1 with spacing for L2 is parallel to motor axis direction insertion end In sub- support member 2-4, then by skeleton terminal 2-1 bendings, block after so that skeleton terminal 2-1 is gathered along the direction of skewed slot 2-3 Enter in skewed slot 2-3, forms winding portion 2-1-1 and middle interconnecting piece divides 2-1-2, the skeleton terminal for stretching out skewed slot 2-3 is downward By twice bended, the external connection part 2-1-3 positioned at vertical direction is formed, external connection part 2-1-3 is used for and outside Customer's connecting line port be connected.

In the present embodiment, the skeleton terminal 2-1 is provided with 5, and 5 skeleton terminal 2-1 are inserted into coil bone simultaneously It is neat to arrange on one wire in frame 2, so as to 5 skeleton terminal 2-1 bendings simultaneously.

In the utility model, it is connect with external customer's connecting line port only with skeleton terminal 2-1, butt is twice Bending forms winding portion 2-1-1, middle interconnecting piece divides 2-1-2 and external connection part 2-1-3, realization motor and outside Connection.Due to eliminating wiring board transition connection, it is directly connected to only with skeleton terminal 2-1, so B sizes compared with the prior art Opposite it can reduce, the overall dimensions A of motor will reduce, facilitate installation, meet the use demand of client, be suitable for smaller space model Product in enclosing uses.

Particular embodiments described above, the technical issues of the utility model is solved, technical solution and advantageous effect into It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvements done Deng should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of stepper motor with small end minor structure, it is characterised in that：Including coil rack (2), the coil rack (2) Including skeleton main body (2-2), terminal holding member (2-4) and the skeleton terminal being fixedly connected on terminal holding member (2-4) (2-1)；The skeleton terminal (2-1) includes winding portion (2-1-1), external connection part (2-1-3) and is arranged above-mentioned Middle interconnecting piece between the two point (2-1-2), the spacing L2 of the winding portion (2-1-1) of the skeleton terminal (2-1) are more than The spacing L1 of external connection part (2-1-3).

2. a kind of stepper motor with small end minor structure according to claim 1, it is characterised in that：The skeleton terminal One end of the winding portion (2-1-1) of (2-1) is used for coiling, the other end and middle interconnecting piece of winding portion (2-1-1) One end connection of (2-1-2), the other end of the middle interconnecting piece point (2-1-2) is divided to be connect with external connection part (2-1-3), Winding portion (2-1-1), middle interconnecting piece point (2-1-2) and external connection part (2-1-3) are one Jing Guo bending twice Body structure.

3. a kind of stepper motor with small end minor structure according to claim 2, it is characterised in that：The intermediate connection Partly the spacing of (2-1-2) is set as：From the one end being connect with winding portion (2-1-1) to external connection part (2-1-3) One end of connection tapers into.

4. a kind of stepper motor with small end minor structure according to claim 1, it is characterised in that：The stepper motor Further include outlet box (1), the outlet box (1) is used to cover on the skeleton terminal (2-1) of the coil rack (2).

5. a kind of stepper motor with small end minor structure according to claim 2, it is characterised in that：The winding portion (2-1-1) with the middle interconnecting piece point (2-1-2) there is certain angle, the middle interconnecting piece point (2-1-2) to connect with outside Socket part point (2-1-3) has certain angle, also, the skeleton terminal is the Z-shaped structure of secondary bending structure on the whole.

6. a kind of stepper motor with small end minor structure according to claim 1, it is characterised in that：The terminal support The skewed slot (2-3) for being pressed into middle interconnecting piece point (2-1-2), middle interconnecting piece point are provided at the lower surface of component (2-4) (2-1-2) is pressed into and is stuck in skewed slot (2-3).

7. a kind of stepper motor with small end minor structure according to claim 6, it is characterised in that：The skeleton terminal It is inserted into from the upper surface of terminal holding member (2-4) to (2-1) word order, by once bending, middle interconnecting piece point (2-1- 2) indentation skewed slot (2-3) forms in the winding portion (2-1-1) positioned at vertical direction, and indentation skewed slot (2-3) and is located at water Square to middle interconnecting piece point (2-1-2), the skeleton terminal for stretching out skewed slot (2-3) is passed through into twice bended, formed be located at it is perpendicular Histogram to external connection part (2-1-3).

8. a kind of stepper motor with small end minor structure according to claim 7, it is characterised in that：The winding portion (2-1-1) is used for other end sharp angle α with a bending of the one end relative to winding portion (2-1-1) of coiling.

9. a kind of stepper motor with small end minor structure according to claim 4, it is characterised in that：The outlet box (1) outside is B to the distance between motor outer diameter, and the distance on the outside of outlet box to motor center is A, B：A is ranging from 0.25~0.29.

10. a kind of stepper motor with small end minor structure according to claim 4, it is characterised in that：The outlet box (1) outside is 4.4mm to the distance between motor outer diameter B, and the distance A of outlet box outside to the motor center is 16.4mm。