KR200157900Y1 - One body type magnetic erasing head - Google Patents

Abstract

At least a magnetic erasing head comprising a front core and a back core, an elastic member, a coil assembly and a hold case, the hold case having a plurality of inserts formed therein so that the coil assembly can be guided and inserted; A guide groove, two terminal pin fixtures elastically and integrally protruding from the inner wall to fix the terminal pins, a center separator for guiding the terminal pins of the coil assembly, and small diameter projections on both side walls of the hold case. Fixing hole formed integrally with the jaw, and a fixed jaw formed in the horizontal direction in the outer middle portion to be mounted on the VCR deck, etc., The coil assembly has a plurality of insertion guides are formed at a predetermined interval on the outer side .

Therefore, by forming a projection with a small diameter inside, it is possible to prevent the occurrence of defects from the external shock after the projection of the elastic member is inserted into the circular fixing hole, and the connector pin type with high reliability by adopting the terminal pin fixture It is possible to implement a connector integrated magnetic erasing head.

Description

Self-cleaning head with connector

The present invention relates to a connector-integrated magnetic erasing head. In particular, the connector-integrated magnetic erasing head has a connector-integrated structure, and simplifies and assembles the manufacturing process by securing a holding force or a fixing force by clarifying the insertion stability and positioning of the hold case and the coil assembly terminal pin. It relates to a connector integrated magnetic erasing head that can contribute to improvement and quality of the product.

A magnetic head refers to magnetization / non-magnetization of a tape by leakage of a magnet from a gap through a core, which is a magnetic current, generated by a signal current flowing through a coil. A magnetic erasing head refers to a magnetic erasure of a magnetically recorded signal. Says head.

1 is an exploded perspective view showing a conventional magnetic erasing head, Figure 2 is an enlarged cross-sectional view showing the main portion of the conventional magnetic erasing head. In these figures, reference numeral 10 denotes a front core, 20 a coil assembly, 30 a rear core, 40 an elastic member, and 50 a hold case.

The front core 10 is inserted into the hold case 50, and the front core 10 and the rear core 30 are pressed and fixed. The hold case 50 has two or more fixing holes 51, 52, 53, and 54 formed on both side walls, and the fixing member 51, 52 is formed on the elastic member 40. ), 53, and 54, the projections 41, 42, 43, and 44 are inserted.

Therefore, in order to form a magnetic circuit of the magnetic erasing head, the elastic member 40 is compressed and positioned while pressing the front core 10 and the back core 30 and inserted into the hold case 50. In Fig. 1, reference numeral 21 denotes a coil, 22 a body, 23 a terminal pin, and 45 an elastic piece.

3 is an overall perspective view showing an assembled state of a conventional magnetic erase head. This figure shows that the connector 60 is formed on the upper surface of the head having such a structure for electrical connection with a circuit such as a video cassette recorder. The connector 60 is connected to the mating connector connected to the circuit of the video cassette recorder with the terminal pin 23 of the coil assembly 20 exposed.

Figure 4 is an exploded perspective view showing another example of a conventional magnetic erase head, Figure 5 is a partially cut-out perspective view showing another example of a conventional magnetic erase head, Figure 6 is a full perspective view showing another example of a conventional magnetic erase head. .

These figures show the connector integrated magnetic erasing head to enable the role without a separate connector. The assembly of this is inserted into the front core 10 into the opening of the hold case 50 and grooves 26 formed on both sides of the coil assembly 20 from the portion where the terminal pin 23 protrudes from the wound coil assembly 20. ) Can be inserted into the concave / convex guide portion 55 formed on the left and right inner walls of the hold case 50. In FIG. 4, reference numeral 27 is a hole formed in the coil assembly 20.

Therefore, when the rear core 30 is inserted into the coil assembly 20 to assemble the coupled coil assembly 20 to the hold case 50, the two connector guides 56 formed at the lower end of the hold case 50 are provided. When the support 57 for the combined support of the coil assembly 20 is opened and the coil assembly 20 reaches a predetermined position, the support 57 is returned to its original state by elastic recovery force and then coupled as shown in FIG. 5. .

See FIG. 6. The lower end of the hold case 50 has two supports 57, a holder engaging protrusion 58 integrally formed at the end of the guide 58 ′, and an elastic groove 59 for exerting elastic force.

The hole 25 formed at the bottom of the coil assembly 20 to strengthen the fixing force is coupled to the holder coupling protrusion 58 of the mating holder, that is, the hold case 50. In addition, the holder engaging projection 58 serves as a hanger to prevent the entire coil assembly 20 from being pushed to the upper side after being coupled to the hole 25.

In addition, after the coil assembly 20 is assembled, an elastic member 40 such as a spring is inserted along the guide 58 'of the hold case 50 so that the bottom surface of the back core 30 can be pushed down. .

Fig. 6 shows a connector-integrated magnetic erasing head which enables its role as a completed magnetic erasing head without a separate connector.

By the way, in the conventional self-erasing head of the structure, the front core 10 is inserted into the coil assembly 20 wound from the opening of the hold case 50 as shown in FIG. After inserting the back core 30, the whole is inserted into the hold case 50.

At this time, there is a problem that neither the coil assembly 20 nor the hold case 50 can be guided and supported so that it is not fixed in place and shakes even after the elastic member 40 is coupled to produce a good product. There is no problem.

In addition, the fixing holes 51, 52, 53, of the hold case 50 by using the projections 41, 42, 43, 44 when the elastic member 40 is engaged. (54) to elastically support the internal components, but if the locking state is inappropriate or the external shock is applied to the self-erasing head, the projections 41, 42, 43 of the elastic member 40 Any or all of the (44) are separated from the fixing holes (51), (52), (53), and (54), and components inserted therein can escape to form an electromagnetic circuit of the magnetic head. And a fatal defect is generated. This results in the head being discarded as a finished product after the entire manufacturing process, resulting in a significant loss of material and labor costs.

In the electrical connection structure with the main circuit board of the video cassette recorder or the like, as shown in FIG. 3, the connector 60 is soldered to the terminal pins 23 provided in the coil assembly 20 to be electrically connected. The process for positioning the connector 60 is difficult and the cost increase due to the increase in the number of assembly and required parts.

In another conventional magnetic erasing head illustrated in FIG. 6, the front case 10 is inserted with the upper surface of the hold case 50 as an opening, and the hold case 50 is formed by combining the back core 30 and the coil assembly 20. The elastic member 40 is inserted in order to elastically press the front core 10 and the rear core 30, and the elastic member 40 receives a large force when the elastic member 40 contacts the bottom surface of the rear core 30. When inclined in the hole 27 of the coil assembly 20 and inserted continuously, one end 32 of the rear core 30 scratches the inner wall of the hole 27 of the coil assembly 20 so that foreign matters generated by this scratch It is sandwiched between the front core 10 and the back core 30 to reduce the electromagnetic characteristic efficiency of the magnetic erase head.

In addition, although the connector guide 56 and the support 57 of the hold case 50 of FIG. 5 are coupled to the holes 25 and the grooves 26 of the coil assembly 20, when the correct insertion is not possible, The hold case 50 and the coil assembly 20 may be separated. Moreover, in the case of the coil assembly 20, since the terminal pin 23 is inserted in the same direction as the longitudinal direction of the coil assembly 20, if the position shift occurs when it is inserted with the main circuit board which is not shown which is a counterpart, a terminal pin There is a problem that the disconnection of the coil wound around 23 occurs from the coil assembly 20.

Therefore, the object of the present invention is to secure the supporting force or the fixing force by clarifying the insertion stability and positioning of the hold case and the coil assembly terminal pin while having a connector-integrated structure, thereby simplifying the manufacturing process, improving the assemblability and improving the quality of the product. It is to provide a connector integrated magnetic erasing head that can contribute.

1 is an exploded perspective view showing a conventional magnetic erasing head

Figure 2 is an enlarged cross-sectional view showing the main part of the conventional magnetic erasing head

Figure 3 is an overall perspective view showing the assembled state of the conventional magnetic erasing head

Figure 4 is an exploded perspective view showing another example of a conventional magnetic erase head

5 is a partially cut-out perspective view showing another example of a conventional magnetic erasing head

6 is an overall perspective view showing another example of a conventional magnetic erase head

7 is an exploded perspective view showing a connector integrated magnetic erasing head of the present invention

Figure 8 is an enlarged perspective view of the main part of the connector-integrated magnetic erase head of the present invention

Figure 9 is an enlarged cross-sectional view showing the main part of the connector-integrated magnetic erase head of the present invention

10 is a perspective view showing a connector-integrated magnetic erase head of the present invention;

* Explanation of symbols for main parts of the drawings

10: front core 20: coil assembly

21: coil 22: body

23: terminal pin 25: hole

26: groove 27: hole

28: insertion guide 30: rear core

40: elastic member 41, 42, 43, 44: protrusion

45: elastic piece 50: hold case

50a, 50b, 50c, 50d: Insertion guide groove

50e: terminal pin fixture 50f: center separator

50g: fixed jaw 50h: hole

51, 52, 53, 54: fixing hole 51a, 52a, 53a, 54a: small projection jaw

55: guide 57: support

58: holder engaging projection 58 ': guide

59: elastic groove 60: connector

Connector-integrated magnetic erasing head of the present invention for achieving the above object, at least a front core and a rear core, an elastic member, a coil assembly and a hold case, wherein the hold case is the coil assembly is A plurality of insertion guide grooves formed therein so as to be guided and inserted therein, two terminal pin fixtures elastically and integrally protruding from the inner wall to fix the terminal pins, and for guiding the terminal pins of the coil assembly. A central separator, fixing holes integrally formed with small diameter projections on both side walls of the hold case, and a fixing jaw formed in the horizontal middle portion so as to be mounted on a VCR deck, and the coil assembly having an outer portion A plurality of insertion guides are formed at predetermined intervals.

Therefore, by forming a projection with a small diameter inside, it is possible to prevent the occurrence of defects from the external shock after the projection of the elastic member is inserted into the circular fixing hole, and the connector pin type with high reliability by adopting the terminal pin fixture It is possible to implement a connector integrated magnetic erasing head.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the connector-integrated magnetic erase head of the present invention. The same components as the conventional description will be described with the same reference numerals to avoid the complexity of the description.

Figure 7 is an exploded perspective view showing a connector-integrated magnetic eraser head of the present invention, Figure 8 is an enlarged perspective view of the main portion of the connector-integrated magnetic eraser head of the present invention, Figure 9 is a main part of the connector-integrated magnetic eraser head of the present invention 10 is an enlarged cross-sectional view, and FIG. 10 is an overall perspective view showing a connector integrated magnetic erasing head according to the present invention.

The hold case 50 of the present invention, the insertion guide grooves 50a, 50b, 50c, 50d and the terminal pins formed therein so that the coil assembly 20 can be guided and inserted therein. Two terminal pin fasteners 50e formed to fix 23 and a central separator 50f for guiding the terminal pins 23 of the coil assembly 20 are formed. It also has a fixing jaw (50g) formed on the outer intermediate portion of the hold case 50 in the horizontal direction, for example, to be mounted on a VCR deck or the like.

The terminal pin fixing member 50e has elasticity on the inner wall of the hold case 50 and is integrally formed to protrude. Reference numeral 50h denotes a hole created by the formation.

9, the fixing holes 51, 52, 53, and 54 of the hold case 50 of the present invention have protrusion diameters 51a, 52a, and (small in diameter). 53a) and 54a are formed simultaneously. That is, the protrusions 41, 42, 43, and 44 of the elastic member 40 are inserted into the circular fixing holes 51, 52, 53, and 54, and then externally impacted. In consideration of the problem that the internal parts can escape due to defects that deviate from the internal components and the magnetic circuit cannot be formed, the protrusions 51a, 52a, 53a, and 54a having small diameters are formed inside. As a result, once the projections are inserted, the separation is difficult.

In addition, the coil assembly 20 of the connector-integrated magnetic erasing head of the present invention has an insertion guide portion 28 formed at a predetermined interval on the outer side.

In FIG. 9, the structural coupling is shown in cross section. In particular, the protrusions 41, 42, 43, and 44 of the elastic member 40 are the fixing holes 51 and 52 of the hold case 50. ), (53) and (54) are shown in the state considered by design so that they are completely jammed and inserted.

10 shows that the coupling is completed, so that the role is possible by using the fixing jaw (50g) without the connector, that is, to be mounted on the chassis of the application device, for example, VCR deck, etc., and at the same time the electrical connection is made. It is shown.

The connector integrated magnetic erasing head of the present invention having such a configuration is connected and fixed as follows. That is, as shown in FIG. 7, the front core 10 is inserted into the hold case 50, and the insertion guide portion 28 is formed at a predetermined interval on the outer side of the coil assembly 20, and the hold case 50 is formed. Insertion guide grooves (50a), (50b), (50c), (50d) is formed on the inner surface of the assembly while guiding each other using them. At this time, the terminal pin 23 is inserted along the center separator 50f formed under the hold case 50.

When inserted into a predetermined depth, the two terminal pin fasteners 50e for fixing the terminal pins 23 that are elastically protruded integrally on the inner wall of the hold case 50 receive the terminal pins 23 and then return to the original state. As a result, the terminal pin 23 is restrained as a result, thereby preventing arbitrary detachment or misinsertion of the terminal pin 23.

The connector integrated magnetic erasing head thus assembled is simply mounted on a VCR deck or the like by using a fixing jaw 50g formed in the transverse direction on the outer middle of the hold case 50.

Therefore, the guide action, that is, the center separator 50f for guiding the terminal pins 23 and the mutual assembly of the four insertion guides 28 and the insertion guide grooves 50a, 50b, 50c, and 50d. By the guide action of the, it is always inserted at regular intervals, to prevent the error when the coil assembly 20 is assembled to the hold case 50 or the phenomenon that the terminal pin 23 is bent and to prevent incorrectly inserted mounting do.

As described above, according to the connector-integrated magnetic erasing head of the present invention, in the connector-integrated magnetic erasing head of the hold case adopting the back insertion, a defect of detachment from external shock after the projection of the elastic member is inserted into the circular fixing hole In view of this problem, the internal parts are pulled out to form a magnetic circuit, and by forming a small projection inside, it is difficult to remove the projection once inserted. This ensures complete mating, increasing the reliability of the product.

In addition, in general, the back insertion type connector-integrated magnetic erasing head is very difficult to form a connector-integrated structure, but the connector-integrated connector-integrated magnetic erasing head can be realized by adopting a terminal pin center separator and an elastic terminal pin fixture under the hold case. In the case of the upper insertion type connector integrated magnetic erasing head, if the insertion shock is applied to the coil assembly due to position instability when assembling the deck, the entire coil assembly coupled to the hold case is pushed out or the terminal pin is pushed out. According to the present invention, the upper part is sealed, thereby preventing various problems such as separation of the coil assembly and terminal pin coil disconnection due to the sliding phenomenon.

Claims (1)

A magnetic erasing head comprising at least a front core and a back core, an elastic member, a coil assembly and a hold case, The hold case is, A plurality of insertion guide grooves formed therein so that the coil assembly can be guided and inserted therein, two terminal pin fixtures which are integrally protruded from the inner wall to fix the terminal pins, and terminal pins of the coil assembly. It has a central separator for guiding the guide, a fixed hole formed integrally with small diameter projection jaw on both side walls of the hold case, and a fixed jaw formed in the horizontal middle portion so as to be mounted on the VCR deck, etc. The coil assembly, A connector integrated magnetic erasing head, characterized in that a plurality of insertion guides are formed on the outer side at predetermined intervals.