KR101230693B1 - A box type condenser for compressor - Google Patents

Abstract

PURPOSE: A box type condenser for a compressor relay is provided to prevent a part of a case from being damaged by forming a bracket reinforcement terminal to reinforce a bracket body and a bottom reinforcement terminal to reinforce a round bottom surface. CONSTITUTION: A compressor relay(50) includes a relay protrusion, a power terminal groove(52,53), and a pair of condenser terminal grooves(54). A case(20) receives a condenser device which stores charges. A bracket(30) is formed on the lower side of the case. The bracket includes a bracket body(32) with a fitting hole(31), a cutting groove(33), and a bracket reinforcement terminal. A position fixing terminal unit is installed to apply power to both terminals of the condenser device.

Description

Box type condenser for compressor relay {A box type condenser for compressor}

The present invention relates to a box type capacitor for a compressor relay used in combination with a compressor relay for a refrigerator.

In general, a refrigerator is coupled to a compressor for compressing a heating medium for refrigeration / freezing, a motor for driving the compressor, a compressor relay for cutting off the power applied to the motor when an overload is applied to the compressor, and a compressor relay. And a box type capacitor for maintaining a constant voltage applied to the motor.

1 is an exploded perspective view of a conventional box-type capacitor for a compressor relay, Figure 2 is a view for explaining the form in which the box-type capacitor of Figure 1 is coupled to the compressor relay, Figure 3 is assembled with the capacitor element in the case of FIG. The figure for explaining that it can be.

As shown in the drawing, the box type capacitor has a box-shaped case 2 in which the capacitor element 1 in which charge is stored and a bracket 3 having a fitting hole 3a formed at the lower end of the case 2 are formed. And a filling agent for fixing the condenser element 1 to the case 2 by being fed into the position fixing terminal part 4 for applying power to both terminals of the condenser element 1 and the opened portion of the case 2. (Not shown).

At this time, the fitting end 2b having the fitting groove 2a in the vertical direction protrudes from both inner side surfaces of the case 2.

In addition, the position fixing terminal part 4 is welded to both terminals of the condenser element 1, and the welding end 4b having the fitting wing 4a formed in the fitting groove 2a and the upper end of the condenser element 1 is formed. A bending end 4c bent at right angles from the welding end 4b and a condenser terminal 4d bent upward at the bending end 4c.

By the box type condenser structure, when the condenser element 1 is housed in the case 2, the fitting wing 4a is pinched in the fitting groove 2a. Then, the filler is introduced into the opened portion of the case 2. After curing, the condenser terminal 4d protrudes above the filler.

Meanwhile, as shown in FIG. 2, the compressor relay 5 is formed upward, and is connected to a relay protrusion 5a fitted to the fitting hole 3a of the bracket 3 and a power line of a compressor motor (not shown). Power terminal grooves 5b and 5c into which the terminals are inserted, and a pair of condenser terminal grooves 5d into which the condenser terminals 4d are fitted.

By the above structure, as shown in FIG. 2, when the box-type capacitor is pressed in a state in which the relay protrusion 5a is positioned to be fitted into the fitting hole 3a of the bracket 3, a pair of capacitor terminals 4d are provided. Is inserted into the condenser terminal groove 5d to complete the assembly.

However, since the compressor relay 5 is a standard product having the same standard all over the world, the positions of the relay protrusion 5a and the condenser terminal groove 5d are determined. Therefore, as shown in FIG. 3, when the capacitor wing 1 is not accurately accommodated in the case 2 and the fitting wing 4a is displaced from the fitting groove 2a, the capacitor terminal 4d protrudes out of the case 2. ) Will also change position. In this case, even if the box-type capacitor is pressed while the relay protrusion 5a is positioned so as to be fitted into the fitting hole 3a of the bracket 3, the condenser terminal 4d is not caught in the condenser terminal groove 5d.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a box type capacitor for a compressor relay that can not be assembled when the capacitor element is not correctly positioned in the case.

Another object of the present invention is to provide a box type capacitor for a compressor relay which can prevent a part of the case from being damaged during handling in a harsh environment.

Still another object of the present invention is to provide a compressor-type box capacitor for a compressor relay which can minimize environmental pollution during disposal as well as a cost increase factor by reducing the amount of filler introduced to fix the capacitor element to the case.

In order to achieve the above object, the compressor relay box-type capacitor according to the present invention includes a case 20 of the box-type housing the capacitor element 10, the charge is stored; A bracket 30 having a fitting hole 31 formed at a lower end of the case 20; A welding end 41 welded to both terminals of the condenser element 10, a fitting blade 42 bent in a direction perpendicular to the welding end 41, and a welding end 41 at an upper end of the condenser element 10. A fixed terminal portion 40 including a bent end 43 bent in a direction perpendicular to the condenser and a condenser terminal 44 bent upward from the bent end 43; In the box-type capacitor comprising a; a filler (not shown) is introduced into the open portion of the case 20 to fix the condenser element 10 to the case 20, the case 20, A stepped surface 21 formed stepped on each of the inner side surfaces 20a, a fitting groove 22 formed in a direction perpendicular to the stepped surface 21, and an upper end of the stepped surface 21 in the fitting groove 22. And a round bottom surface 25 having a curvature corresponding to an outer circumferential surface of the condenser element 10 inserted as formed in the inner bottom and a guide groove 23 extending in a fan shape.

In the present invention, the width w1 of the fitting groove 22 has a size of 1.2 to 2 times the width W2 of the fitting blade 42.

In the present invention, the case 20 further includes an inclined end 24 formed obliquely between the inner both side surfaces 20a and the step surface 21.

In the present invention, the case 20 further includes a bottom reinforcing end 26 for reinforcing the round bottom surface 25.

In the present invention, the bracket 30 further includes a cutting groove 33 connected to the fitting hole 31 at the end of the bracket body 32 in which the fitting hole 31 is formed. At this time, the bracket body 32 and the case 20 further comprises a bracket reinforcing end 34 for connecting the perpendicular portion.

According to the present invention, since the guide groove and the fitting groove are formed on the stepped surface formed on the lower surface of both sides of the case, when the fitting blade is not caught in the guide groove or the fitting groove, the condenser element is not inserted into the case. In other words, if the fitting wing is not caught in the fitting hong, assembly itself is impossible.

In addition, by forming a bottom reinforcing step for reinforcing the round bottom surface and a bracket reinforcing step for reinforcing the bracket body, it is possible to prevent part of the case during the handling in the harsh environment.

In addition, by forming a round bottom surface, the amount of filler injected to fix the condenser element to the case can be reduced, thereby reducing costs and minimizing environmental pollution during disposal.

1 is an exploded perspective view of a conventional box-type capacitor for a compressor relay,
FIG. 2 is a view for explaining a form in which the box capacitor of FIG. 1 is coupled to a compressor relay;
3 is a view for explaining that a condenser element may be assembled in a case of FIG.
4 is an exploded perspective view of a box capacitor for a compressor relay of the present invention;
5 is a cross-sectional view taken along line VV ′ of the case of FIG. 4;
6 is a view for explaining the width of the fitting groove and the width of the fitting blade of Figure 5,
7 is a view for explaining the inside of the case of FIG.
8 is a rear perspective view of the case of FIG. 4;
9 is a view for explaining a form in which the box-type capacitor of FIG. 4 is coupled to a compressor relay.

Hereinafter, a box type capacitor for a compressor relay according to the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view of the box-type capacitor for a compressor relay of the present invention, Figure 5 is a cross-sectional view along the line VV 'of the case of Figure 4, Figure 6 to explain the width of the fitting groove and the width of the fitting wing of FIG. It is for the drawing. FIG. 7 is a view for explaining the inside of the case of FIG. 4, FIG. 8 is a rear perspective view of the case of FIG. 4, and FIG. 9 is a view for explaining a form in which the box-type capacitor of FIG. 4 is coupled to a compressor relay. .

The box-type capacitor according to the present invention is used by being assembled to the compressor relay 50 of the refrigerator, and the compressor relay 50 is formed upward as shown in FIG. 9, and the fitting hole 31 of the bracket 30 to be described later will be described. A pair of condenser terminal grooves, in which the power supply terminal grooves 52 and 53 into which the relay projection 51 and the terminal connected to the power line of the compressor motor (not shown) are fitted. 54).

As shown in the drawing, the box-type capacitor according to the present invention has a box-shaped case 20 in which a capacitor element 10 in which charge is stored is formed, and a fitting hole 31 is formed at the lower end of the case 20. A bracket 30, a position fixing terminal portion 40 for applying power to both terminals of the condenser element 10, and an opening portion of the case 20 are fed to the condenser element 10 to the case 20. Fillers (not shown) for fixation.

The position fixing terminal part 40 for applying power to the condenser element 10 has a weld end 41 welded to both terminals of the condenser element 10 and a fitting blade bent in a direction perpendicular to the weld end 41 ( 42, a bending end 43 bent at right angles from the welding end 41 at the upper end of the condenser element 10, and a condenser terminal 44 bent upward at the bending end 43.

The condenser element 10 is implemented by winding the film in which the deposition film is formed in an elliptic cylinder shape, and thus, a curvature is formed on the outer circumferential surface thereof.

The case 20 includes a stepped surface 21 formed stepped on each of the inner side surfaces 20a, a fitting groove 22 formed in a direction perpendicular to the stepped surface 21, and a stepped surface at the fitting groove 22. A guide groove 23 extending in a fan shape to the upper end of the 21, an inclined end 24 formed obliquely between the inner side surfaces 20a and the stepped surface 21, and a capacitor element inserted as formed on the inner bottom ( A round bottom surface 25 having a curvature corresponding to the outer circumferential surface of 10) and a plurality of bottom surface reinforcing ends 26 for reinforcing the round bottom surface 25.

The stepped surface 21 is formed on both inner side surfaces 20a of the case 20, and is formed on all of both side surfaces 20a of the point spaced apart from the upper end of the case 20 by a predetermined distance D. Since the stepped surface 21 is formed at the lower side of the entire surface at a predetermined interval D on both inner side surfaces 20a of the case, unless the fitting blade 42 is accurately inserted in the guide groove 23 or the fitting groove 22 which will be described later. The assembly of the capacitor element is made impossible.

When the condenser element 10 is completely accommodated in the case 20, the upper end of the condenser element 10 is positioned at the lower end side of the predetermined interval D, and in this state, the filler (not shown) is applied to the predetermined interval D. Is filled. At this time, the filler fills the guide groove 23 and at the same time covers the condenser element 10 to fix the position in a completely separated state.

The fitting groove 22 is that the fitting blade 42 of the position fixing terminal part 40 is fitted, and supports the fitted fitting blade 42 not to move. To this end, the width w1 of the fitting groove 22 has a size of 1.2 to 2 times the width W2 of the fitting blade 42, and for example, the width w2 of the fitting blade 42 is 0.5 mm. If the width (w1) of the fitting groove 22 is to be 0.6 ~ 1mm.

The box-type capacitor of the present invention, in order to be correctly assembled to the compressor relay 50, the condenser terminal 44 of the position fixing terminal portion 40 must be positioned to exactly correspond to the condenser terminal groove 54.

To this end, the width w1 of the fitting groove 22 has a size 1.2 to 2 times larger than the width w2 of the fitting blade 42. If the width w1 of the fitting groove 22 is one or two times or less than the width w2 of the fitting blade 42, the fitting blade 42 is fitted while the capacitor element 10 is accommodated in the case 20. It becomes difficult to fit in the groove 22. In addition, when the width w1 of the fitting groove 22 is greater than two times larger than the width w2 of the fitting blade 42, the condenser terminal 44 depends on the position of the fitting blade 42 in the fitting groove 22. The difference between the two ends is not constant, and therefore, the position of the condenser terminal 44 is out of the position of the condenser terminal groove 54, making it difficult to fit the condenser terminal 44 into the condenser terminal groove 54.

The guide groove 23 is a groove determined from the fitting groove 22 to the upper side of the stepped surface 21, and guides the fitting wing 42 to be accurately fitted into the fitting groove 22.

As described above, the width w1 of the fitting groove 22 is about 1.2 to 2 times larger than the width of the fitting blade 42, so that the fitting blade 42 is inserted into the narrow fitting groove 22. The guide groove 23 is to be adopted so that it can be.

Since the fitting groove 22 and the guide groove 23 are formed on the stepped surface 21 formed on the lower surface of both sides 20a of the case, the fitting blade 42 is the guide groove 23 or the fitting groove. If it is not pinched by 22, the condenser element 10 will not be inserted into the case 20. That is, if the fitting blade 42 is not inserted into the guide groove 23 or the fitting groove 22, the condenser element 10 may not be assembled in the case 20, on the contrary, the case 20 in the condenser element 10 When fitted to the fitting blade 42 is fitted to the fitting groove (22).

The inclined end 24 is formed between the inner side surfaces 20a and the stepped surface 21 of the case 20 so as to be inserted smoothly when the condenser element 10 is accommodated in the case 20. If the inclined end 24 is not formed, the condenser element 10 is caught by the stepped surface 21, so that assembly is not easy.

The round bottom surface 25 has a curvature corresponding to the outer circumferential surface of the condenser element 10 inserted into the case 20, and the bottom outer circumferential surface of the condenser element 10 can maintain a minimum distance from the round bottom surface 25. Make sure Therefore, the amount of filler consumed when filling the case 20 can be reduced.

If the bottom surface is flat as in the conventional case, a large empty space is formed between the bottom surface of the condenser element having the curvature surface and the bottom edge of the case, and a large amount of filler may be consumed to fill the large empty space. .

In the present invention, a cost reduction of about 20 won is possible by reducing the amount of filler consumed when the bottom of the case 2 implements the round bottom surface 25 by about 4-5g.

For reference, a conventional box-type capacitor for a compressor relay having a flat case bottom costs about 700 to 800 won, and the cost of the filler amounts to about 20 to 30% about 150 to 200 won. Epoxy used mainly as a filler is about 6 won per 1g as of August 2012, and the amount of filler used is about 30g.

In other words, by forming the round bottom surface 25 on the bottom of the case 2, the amount of filler can be reduced by 4 to 5g, and the cost can be reduced to about 4%.

The bottom reinforcing end 26 is to reinforce the round bottom 25 from an external impact, and connects the lower end of the case 20 with the round bottom 25. The bottom reinforcing end 26 prevents the round bottom 25 from being damaged even if the case 20 is handled in a harsh environment, for example, if it falls on the floor or collides with another case.

The bracket 30 includes a bracket body 32 having a fitting hole 31 into which the relay protrusion 51 is fitted, an incision groove 33 connected from the end of the bracket body 32 to the fitting hole 31, It includes a bracket reinforcing end 34 for connecting the perpendicular portion between the bracket body 32 and the case 20.

The cutting groove 33 allows the relay protrusion 51 to be easily fitted into the fitting hole 31 by slightly opening the end of the bracket 30 when the relay protrusion 51 is fitted into the fitting hole 31. And, even after being fitted so that the relay projection 51 can be separated from the fitting hole (31). Therefore, the cutting groove 33 is to improve the assembly.

In addition, the cutting groove 33 closes the end of the bracket body 32 when the relay protrusion 51 is fitted into the fitting hole 31 such that the relay protrusion 51 is in close contact with the fitting hole 31. Therefore, vibration noise is prevented from occurring between the box capacitor and the compressor relay 50 due to the vibration of the compressor applied from the outside.

In general, the refrigerator is installed in a space where people live, and vibration is always generated by the operation of the compressor and the motor. Therefore, when the noise caused by the vibration is large, the user is very inconvenient. In order to prevent noise caused by the vibration, the bracket body 32 is formed with a cutting groove 33 so that the fitting hole 31 can be firmly adhered to the relay protrusion 51.

If the incision groove 33 is not formed, the relay protrusion 51 may move in the fitting hole 31. Accordingly, when the compressor vibration is transmitted, the relay protrusion 51 may be repeatedly inserted in the fitting hole 31. Phosphorus collisions generate noise.

The bracket reinforcing end 34 prevents the bracket body 32 from being damaged when, for example, the case 20 is handled in a harsh environment, for example, when it falls on the floor or collides with another case.

For reference, box capacitors are assembled in thousands to tens of thousands of units per day. This assembly process is carried out by manually coupling the condenser element installed with the position fixing terminal to the case, the condenser element is placed on the pallet at regular intervals and used after being transported to the workplace, but the case is contained in the container used to be transferred to the workplace . Therefore, the case 20 is collided with another case in the container, and the bracket body 32 may be damaged in this process. That is, the case 20 is roughly handled unlike the condenser element 10, and in this process, the bracket body 32 protruding by collision with another case may be damaged.

In order to prevent damage to the bracket body 32, the bracket reinforcing end 34 is to connect the perpendicular portion between the bracket body 32 and the case 20.

By the above structure, when the condenser element 10 is accommodated in the case 20, the fitting blade 42 is inserted into the fitting groove 22, and then the filler is introduced into the opened portion of the case 20. When hardened | cured, the box type capacitor | condenser in which the condenser terminal 44 protruded upward is completed. At this time, the fitting wing 42 is guided to the fitting groove 22 along the guide groove 23 so that the pin is correctly fitted, and thus the condenser terminal 44 corresponds exactly to the condenser terminal groove 54 of the compressor relay 50. Will be in position.

In particular, since the guide groove 23 and the fitting groove 22 are formed on the stepped surface 21 formed on the lower surface of the lower side of both sides 20a of the case, the fitting blade 42 is not caught in the guide groove or the fitting groove. When the condenser element 10 is not inserted into the case 20. Therefore, when the condenser element 10 is not exactly positioned in the case 20, assembly may be impossible.

In addition, by forming a bottom reinforcing end 26 for reinforcing the round bottom surface 25 and a bracket reinforcing end 34 for reinforcing the bracket body 32, a part of the case 20 is damaged during handling in a harsh environment You can prevent it.

In addition, by forming the round bottom surface 25, the amount of filler injected to fix the condenser element 10 to the case 20 can be reduced, so that the cost can be reduced and the amount of filler used is small. Contamination can be minimized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10 ... capacitor 20 ... case
21 ... step 22 ... fitting groove
23 ... guide groove 24 ... incline
25 ... round bottom 26 ... bottom reinforcement
30 ... Bracket 31 ... Fitting
32 ... bracket body 33 ... incision groove
34 ... Bracket reinforcement terminal 40 ... Position fixing terminal part
41 ... welding edge 42 ... fitting wing
43 ... bending end 44 ... condenser terminal
50 ... Compressor relay 51 ... Relay turn
52, 53 ... Power terminal groove 54 ... Condenser terminal groove

Claims (7)

A case 20 in the form of a box in which the capacitor 10 in which charge is stored is received; A bracket 30 having a fitting hole 31 formed at a lower end of the case 20; A welding end 41 welded to both terminals of the condenser element 10, a fitting blade 42 bent in a direction perpendicular to the welding end 41, and a welding end 41 at an upper end of the condenser element 10. A fixed terminal portion 40 including a bent end 43 bent in a direction perpendicular to the condenser and a condenser terminal 44 bent upward from the bent end 43; In the box-type capacitor comprising a; Filler (not shown) to be inserted into the open portion of the case 20 to fix the condenser element 10 to the case 20,
The case 20 has a stepped surface 21 formed stepped on each of the inner side surfaces 20a, a fitting groove 22 formed in a direction perpendicular to the stepped surface 21, and the fitting groove 22. A guide groove 23 extending in a fan shape to the upper end of the stepped surface 21 and a round bottom surface 25 having a curvature corresponding to an outer circumferential surface of the condenser element 10 inserted as formed in the inner bottom. Box type capacitor for a compressor relay, characterized in that. The method of claim 1,
The width w1 of the fitting groove 22 is a box-type capacitor for a compressor relay, characterized in that having a size 1.2 ~ 2 times the width (W2) of the fitting blade (42). The method of claim 1, wherein the case 20,
Box-type capacitor for a compressor relay, characterized in that it further comprises an inclined end (24) formed obliquely between the inner side surfaces (20a) and the step surface (21). delete The method of claim 1, wherein the case 20,
Box-type condenser for a compressor relay further comprises a bottom reinforcing end 26 for reinforcing the round bottom surface (25). The method of claim 1, wherein the bracket 30,
Compressor relay box-type capacitor, characterized in that it further comprises a cutting groove (33) connected from the end of the bracket body 32, the fitting hole 31 is formed to the fitting hole (31). The compressor of claim 6, further comprising a bracket reinforcing end (34) for connecting a right angled portion between the bracket body (32) and the case (20).

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