JPH083934Y2 - Voltage switch for booster transformer for refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention has improved the voltage changeover switch of a step-up transformer for a refrigerator, in particular, the method of inserting the voltage changeover switch into the step-up transformer to improve the voltage changeover switch terminal and The present invention relates to a voltage changing switch of a step-up transformer for a refrigerator, which can prevent the coil of the step-up transformer from being damaged.

(Prior Art) Conventionally, in a step-up transformer for a refrigerator, as shown in FIG. 3, a coil protective cover 2'of a step-up transformer 1'is shown.
One side surface and the front side surface are cut open to form an insertion groove 3'for inserting the voltage changeover switch 5 ', and an elastic piece 8'is provided at a predetermined position on the front side surface of the coil protection cover 2'. A cutout is formed inward of the elastic piece 8 ', and a locking step 9'which is locked to the elastic piece 8'is provided at a predetermined position on one side surface of the voltage changeover switch 5'corresponding to the elastic piece 8'. A plurality of locking projections 10 'are provided on the upper side surface and the lower side surface of the voltage changeover switch 5', so that the voltage changeover switch 5'is inserted into the insertion groove 3'of the step-up transformer 1 '. While inserting from the above, the locking step 9'of the voltage changeover switch 5'is locked to the elastic piece 8'of the coil protection cover 2'and the locking projection 10 'of the voltage changeover switch 5'is protected by the coil. Locked at the upper and lower edges of the cover 2 ' Thus, the voltage changeover switch 5'can be inserted in the step-up transformer 1 '.

(Problem to be Solved by the Invention) However, in the conventional voltage changeover switch for the refrigerator step-up transformer, the voltage changeover switch 5'is inserted from the side surface of the coil protection cover 2 '. The process becomes longer and the voltage selector switch 5 '
Is inserted into the step-up transformer 1 ', the coil 12' of the step-up transformer 1'is brought into contact with the switch terminal 11 'of the voltage changeover switch 5'and damaged, resulting in inconvenience in safety and economy.

In addition, it is necessary to form a lid on one side surface of the voltage changeover switch 5'to cover the incised portion on the side surface of the coil protection cover 2 ', which complicates the manufacturing process of the product and increases the cost. To do.

Further, since the process distance required for inserting the voltage changeover switch 5'in the step-up transformer 1'is long, a long lead wire is required.

The present invention solves the above-mentioned problems of the voltage changeover switch of the booster transformer for a refrigerator, and when the voltage changeover switch is inserted into the stepup transformer, the switch terminal does not come into contact with and damage the coil. It is an object of the present invention to provide a voltage changing switch for a step-up transformer for a refrigerator, which has a simple manufacturing process, is low in cost, and does not require a long lead wire for inserting the voltage changing switch in the step-up transformer.

(Means for Solving the Problem) Therefore, in the voltage changeover switch of the step-up transformer for the refrigerator of the present invention, the voltage changeover of the step-up transformer for the refrigerator including the step-up transformer, the coil protection cover of the step-up transformer and the voltage changeover switch is provided. In the switch, only the front side surface portion of the coil protection cover is incised to form an insertion groove into which the voltage changeover switch is inserted, and locking means is projectingly provided on any side surface of the voltage changeover switch which faces each other. The voltage changeover switch having the locking pivot is inserted into the insertion groove to lock the locking means on the inner side edge of the coil protection cover.

The locking means includes an elastic locking piece and a locking ridge, and one elastic locking piece and one locking ridge are provided on each of opposite side surfaces of the voltage changeover switch. One of the elastic locking piece and the locking projection is provided on each of the opposite side surfaces of the voltage changeover switch.

Further, the elastic locking piece has a locking step to be locked to an inner side edge of the coil protection cover and is made of an elastic material, and the locking ridge is on the inner side of the coil protection cover. It is a ridge that is locked to the edge.

Then, a locking groove for locking the locking step is cut out at a portion corresponding to the locking step of the elastic locking piece on the upper, lower, left and right side surfaces of the coil protection cover. .

(Operation) According to the present invention, in the voltage changeover switch of the step-up transformer for the refrigerator as described above, the voltage changeover switch 5 is used.
When the locking ridge 7 formed on the right side of is inserted slightly into the right side of the insertion groove 3 of the coil protection cover 2 and the left side of the voltage changeover switch 5 is inserted into the inner depth of the insertion groove 3. The elastic locking piece 6 is temporarily compressed and inserted, and the voltage changeover switch 5 is completely inserted into the insertion groove 3. After that, the elastic locking piece 6 expands by the distance between the outer side surface of the voltage changeover switch 5 and the inner side surface of the coil protection cover 2, and the locking step 6a of the elastic locking piece 6 extends along the edge of the locking groove 4. Is locked to the part, and
Since the locking projection 7 is locked to the inner side edge portion of the coil protection cover 2, the voltage changeover switch 5 is stably inserted in the insertion groove 3 of the step-up transformer 1.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing a structure of a voltage changeover switch of a refrigerator step-up transformer of the present invention, and FIG. 2 is a longitudinal cross-sectional view of a main part showing a structure of a voltage changeover switch of a refrigerator step-up transformer of the present invention.

In the figure, only the front side surface portion of the coil protection cover 2 provided in the step-up transformer 1 is incised to form an insertion groove 3 into which the voltage changeover switch 5 is inserted. Engaging means are formed in a projecting manner at predetermined positions on both side surfaces of the voltage changeover switch 5 which face each other.

The locking means comprises an elastic locking piece 6 having a locking step 6a and a locking ridge 7. In this embodiment, an elastic locking member is provided on the left side surface of the voltage changeover switch 5 with reference to FIG. The stop 6
Locking protrusions 7 are formed on the right side surface. The arrangement of the elastic locking pieces 6 and the locking projections 7 can be arbitrarily changed and formed as necessary.

For example, the locking protrusion 7 is provided on the left side surface of the voltage changeover switch 5.
It is also possible to dispose the elastic locking pieces 6 on the right side surface, respectively, and to dispose the locking projections 7 and the elastic locking pieces 6 facing the upper and lower sides of the voltage changeover switch 5, respectively. You can also do it. Further, either one of the elastic locking piece 6 and the locking projection 7 is selected and two of the same kind are connected to the voltage changeover switch 5.
It is also possible to form them on both arbitrary side surfaces of

Further, as shown in FIG. 1, a locking groove 4 having a predetermined shape is cut out at a predetermined position of the coil protection cover 2 corresponding to the elastic piece 6, and the voltage changeover switch 5 is provided.
Is inserted into the insertion groove 3 of the step-up transformer 1, and then the locking step 6a of the elastic locking piece 6 is locked into the locking groove 4 so that the voltage changeover switch 5 is stabilized in the step-up transformer 1. It is designed to be inserted.

Further, since the locking groove 4 may be formed corresponding to the elastic locking piece 6, as shown in FIG. 1, not only the left side surface of the coil protection cover 2 but also the voltage changeover switch 5 is projected. It may be formed at predetermined locations on the upper, lower, left, and right sides of the coil protection cover 2 depending on the position of the elastic locking piece 6. Then, as described above, when the two locking projections 7 are formed on both arbitrary side surfaces of the voltage changeover switch 5, the locking groove 4 can be omitted.

Reference numeral 11 is a switch terminal of the voltage changeover switch 5.

It should be noted that the present invention is not limited to the above embodiments, and various modifications can be made based on the spirit of the present invention, and these modifications are not excluded from the scope of the present invention.

(Effect of the Invention) As described above in detail, according to the present invention, the voltage changeover switch can be inserted by cutting only the front side surface portion of the coil protection cover of the step-up transformer. As a result, the insertion process can be shortened, damage caused by contact between the terminals of the voltage changeover switch and the coil of the step-up transformer can be prevented, and lead wires can be saved.

Further, the manufacturing process of the step-up transformer for the refrigerator is simplified, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of a voltage changing switch of a step-up transformer for a refrigerator according to the present invention, and FIG. 2 is a longitudinal sectional view of a main part showing the configuration of a voltage changing switch of a step-up transformer for a refrigerator according to the present invention. FIG. 6 is a perspective view showing a configuration of a voltage changeover switch of a conventional step-up transformer for a refrigerator. 1 ... Step-up transformer, 2 ... Coil protection cover, 3 ...
Insertion groove, 4 ... Locking groove, 5 ... Voltage selector switch, 6 ...
… Elastic locking piece, 6a… Locking step, 7… Locking ridge.

Claims (4)

[Scope of utility model registration request] 1. A voltage changeover switch of a step-up transformer for a refrigerator having a step-up transformer, a coil protection cover of the step-up transformer, and a voltage changeover switch, comprising: (a) cutting out only a front side surface portion of the coil protection cover to obtain the voltage. Forming an insertion groove into which the changeover switch is inserted; (b) projecting locking means on arbitrary opposite side surfaces of the voltage changeover switch; and (c) forming a voltage changeover switch having the locking means into the insertion groove. A voltage changeover switch for a step-up transformer for a refrigerator, characterized in that the locking means is inserted into the coil protection cover and is locked to an inner side edge of the coil protection cover. 2. The locking means comprises an elastic locking piece and a locking projection, and at least one of the elastic locking piece and the locking projection is provided on each of opposite side surfaces of the voltage changeover switch. The voltage changeover switch of the step-up transformer for a refrigerator according to claim 1, wherein the voltage changeover switches are arranged one by one. 3. The elastic locking piece has a locking step to be locked to an inner side edge of the coil protection cover, and is made of an elastic material, and the locking projection is formed on the coil protection cover. The voltage changeover switch of the step-up transformer for a refrigerator according to claim 2, wherein the voltage changeover switch is a protrusion that is locked to an inner side edge. 4. Locking grooves for locking the locking step are cut out at portions corresponding to the locking step of the elastic locking pieces on the upper, lower, left and right side surfaces of the coil protection cover. The voltage changeover switch of the step-up transformer for a refrigerator according to claim 1, which is formed.