CN203787355U - Sealing structure for electronic equipment - Google Patents

Abstract

Provided is a sealing structure for electronic equipment which is free of adverse operation and uneven operation characteristics. In the sealing structure of the electronic equipment, a basal part of a terminal part (66) of a movable contact terminal (61) is embedded in a movable terminal notch (18a) arranged on the periphery of a pedestal (10). A shell (80) is embedded on the pedestal (10). A sealing material is injected in the embedded part of the pedestal (10) and the shell (80) for sealing. Especially, the basal part of the terminal part (66) is provided with a sealing termination part (67) for blocking the movable terminal notch (18a).

Description

The hermetically-sealed construction of electronic equipment

Technical field

The utility model relates to the hermetically-sealed construction of electronic equipment, especially the hermetically-sealed construction of the terminal of electromagnetic relay.

Background technology

At present, disclose following electronic equipment: a kind of electromagnetic relay, comprises the tabular yoke of the roughly C word shape with the main part that horizontal direction extends and the shank that extends from the two ends of this main part downwards, have and be assemblied in the reel portion of described main part and insulating properties bobbin that the magnet exciting coil of reeling forms around this reel portion, there is the armature that extends and be provided with the vertical component effect that rotation axial region that the bearing of trend of the horizontal part of insulating properties active gage, a shank from shank described in one end side direction of this horizontal part extends contacts with another shank described shank when from another distolateral extension of described horizontal part and when described magnet exciting coil excitation in described horizontal direction, there is the recess of axle sheet or the insulating properties base shell in hole that support two shanks of described yoke and accommodate the rotation axis subordinate end that is formed on described armature, and be configured in mode between the below of described magnet exciting coil and two shanks of described yoke be assemblied on described base shell and by the pushing of described active gage, contact with each other can moving contacting plate and fixed contact piece, wherein, described base shell has the insulation wall extending between described magnet exciting coil and described armature, described electromagnetic relay is characterised in that, described base shell has described the second insulation wall movably and between fixed contact piece and described armature of blocking-up, described active gage via the hole pushing of substantial middle portion that is formed on described the second insulation wall is described can moving contacting plate (with reference to patent documentation 1).

And, in the hermetically-sealed construction of described electromagnetic relay, as shown in its Fig. 4, the substrate connecting portion 22e of fixed contact piece 22 is embedded in to the notch of the outer peripheral face that is arranged on base shell 10, housing 70 is embedded in to described base shell 10, afterwards, seal to the bottom surface injecting sealing material of described base shell 10.

Look-ahead technique document

Patent documentation

Patent documentation 1: TOHKEMY 2003-115248 communique

Utility model content

The problem solving

But, in above-mentioned electromagnetic relay, because the heating operation in hot curing operation has strengthened the encapsulant of mobility along the deep inside of described substrate connecting portion 22e intrusion shell.Therefore, the strain of fixed contact piece 22 grades is brought to impact, become and cause moving bad, the uneven reason of operating characteristics.

Point in view of the above problems, problem of the present utility model is to provide a kind of and does not have that action is bad, the hermetically-sealed construction of the uneven electronic equipment of operating characteristics.

Solve the means of problem

In order to solve above-mentioned problem, according in the hermetically-sealed construction of electronic equipment of the present utility model, the base portion of the chimeric portion of terminal that has contact terminal on the notch of outer peripheral face that is located at base, and chimericly on described base there is a housing, the fitting portion that encapsulant injects described base and described housing seals, in the hermetically-sealed construction of this electronic equipment, adopt the structure that is provided with the sealing end portion of notch described in shutoff at the base portion of described portion of terminal.

Utility model effect

According to the utility model, stop up and be located at the notch of base by sealing end portion, thereby can prevent the intrusion of encapsulant, therefore, can obtain and can prevent from moving hermetically-sealed construction bad, the uneven electronic equipment of operating characteristics.

As execution mode of the present utility model, can also bending perk described in the part of portion of terminal form described sealing end portion.

According to present embodiment, expand the range of choice of manufacture method, be convenient to manufacture.

As other execution modes of the present utility model, the folding surplus that can also form punching press conductive sheet folds and forms described portion of terminal, and, a bend at end perk of described folding surplus is formed to described sealing end portion.

According to present embodiment, can form sealing end portion by conductive sheet, there is the effect that expands material range of choice.

Brief description of the drawings

Fig. 1 (A), (B) are the stereograms of observing from different perspectives according to the first execution mode of electromagnetic relay of the present utility model.

Fig. 2 from the view identical with Fig. 1 (A) to the exploded perspective view of electromagnetic relay.

Fig. 3 from the view identical with Fig. 1 (B) to the exploded perspective view of electromagnetic relay.

(A) of Fig. 4 is the front elevation of the electromagnetic relay shown in (A) of Fig. 1, and (B) of Fig. 4 is the B-B line sectional view of Fig. 4 (A), and (C) of Fig. 4 is the partial enlarged drawing of Fig. 4 (B).

(A) of Fig. 5 is the left surface sectional view of the electromagnetic relay shown in Fig. 1, and (B) of Fig. 5 is the partial enlarged drawing of Fig. 5 (A), and Fig. 5 (C) is the right flank sectional view of the electromagnetic relay shown in Fig. 1.

(A) of Fig. 6 is the stereogram of the electromagnetic relay shown in (B) of Fig. 1, and (B) of Fig. 6 is the partial enlarged drawing of Fig. 6 (A).

(A) of Fig. 7 is the front elevation of the electromagnetic relay shown in (B) of Fig. 1, and (B) of Fig. 7 is the local amplification sectional view of B-B line of Fig. 7 (A), and (C) of Fig. 7 is the major part enlarged drawing of Fig. 7 (B).

Fig. 8 (A), (B) are the stereograms of observing from different perspectives the base shown in Fig. 1.

Fig. 9 (A), (B) and (C) be front elevation, vertical view and the back view of the base shown in Fig. 1.

(A) of Figure 10 is the stereogram of the variation of the base shown in presentation graphs 1, and (B) of Figure 10 is the partial enlarged drawing of Figure 10 (A).

Figure 11 (A), (B) are the exploded perspective views of observing from different perspectives the inscape of electromagnet portion.

Figure 12 (A), (B) observe the stereogram that movable iron is combined in to the state of iron core from different perspectives.

(A) of Figure 13 is the stereogram of the action for movable iron is described to (D).

(A) of Figure 14 and (B) of Figure 14 are the figure that the relation between load on spring and the coil magnetic force that acts on pushing point P is shown.

Figure 15 (A), (B) are the stereograms of the card shown in Fig. 2, Fig. 3.

(A) of Figure 16 is the front elevation, left surface figure, stereogram of the moving contact terminal shown in Fig. 2, Fig. 3, the stereogram observed from different perspectives to (D).

(A) of Figure 17 is the front elevation, stereogram of the fixed contact terminals shown in Fig. 2, Fig. 3, the stereogram observed from different perspectives to (C).

Figure 18 is the cross-sectional perspective view of the housing shown in Fig. 2, Fig. 3.

Figure 19 (A), (B) are stereogram and the local amplification stereograms that represents the electromagnetic relay of the utility model the second execution mode.

Figure 20 (A), (B) are stereogram and the local amplification stereograms that represents the electromagnetic relay of the utility model the 3rd execution mode.

Figure 21 (A), (B) are stereogram and the local amplification stereograms that represents the electromagnetic relay of the utility model the 4th execution mode.

Figure 22 (A), (B) are stereogram and the local amplification stereograms that represents the electromagnetic relay of the utility model the 5th execution mode.

Figure 23 (A), (B) be represent the utility model the 6th execution mode electromagnetic relay stereogram and from different perspectives observe stereogram.

Figure 24 from the view identical with Figure 23 (A) to the exploded perspective view of the 6th execution mode.

Figure 25 from the view identical with Figure 23 (B) to the exploded perspective view of the 6th execution mode.

Embodiment

The execution mode of electromagnetic relay is described with reference to the Fig. 1 to Figure 25 in accompanying drawing, and this electromagnetic relay is suitable for according to electronic equipment of the present utility model.

As shown in Fig. 1 to Figure 18, roughly formed by base 10, electromagnet portion 20, movable iron 40, card 50, contact mechanism portion 60 and housing 80 according to the electromagnetic relay of the first execution mode.

In addition, for convenience of description, not shown housing 80 in Fig. 1.And, in the present embodiment, using the side of assembling electromagnet portion 20 on base 10 as face side (Fig. 2), using a side of portion of mounted contacts mechanism 60 on described base 10 as rear side (Fig. 3).

As shown in FIG. 8 and 9, described base 10 is formed with along the adjacent edge in the peripheral edge portion of its upper surface the insulation wall 11 that plane is roughly L word shape.And a part for described insulation wall 11 bloats to face side, thereby form the recess 12 that can configure contact mechanism described later portion 60.And then, be provided with the square handle hole 13 of the operation projection 52 that can insert card 50 described later in the substantial middle portion of described recess 12.

And as shown in Fig. 9 (B), described base 10 is provided with for assembling a pair of of door shaped iron core 30 described later and is pressed into recess 14,15 near the base portion of the face side of insulation wall 11.Described be pressed into recess 14,15 therein the base portion of side be respectively equipped with and crush with jut 14a, 15a.And, be provided with the anticreep hole 16a that prevents that movable iron 40 described later from coming off with described being pressed into the adjacent position of recess 14, and be provided with the bearing portion 16b that supports movable iron 40 with described being pressed into the adjacent position of recess 15.And then, be provided with described terminal notch 10a and the terminal hole 10b that coil terminals 37,38 described later inserts and passes through between being pressed into recess 14 and insulation wall 11.

In addition, as shown in Fig. 9 (C), described base 10 is provided with square handle hole 13 in the substantial middle portion of recess 12 of the rear side that is located at insulation wall 11 as described above.And described base 10 is provided with cyclic reinforcing rib 13a around described handle hole 13, and gives prominence to and be provided with the 12a of supporting projections portion in the position adjacent with described handle hole 13.And then the region of the opening edge edge that be positioned at described recess 12 of described base 10 in its peripheral edge portion is provided with moving contact terminal notch 18a and fixed contact terminals notch 18b.And the region of the opening edge edge that is positioned at described recess 12 in described insulation wall 11 is formed with the positioning step portion 17 for fixed contact terminals with taper surface.Be provided with side by side (C) that be formed as taper surface and cross section and be roughly leg-of-mutton sealing reservoir 17a(Fig. 7 in the inboard corner of described positioning step portion 17 portion).And described base 10 is provided with and is pressed into groove 19a, 19B in the position adjacent with described recess 12, and is provided with and is pressed into groove 19c, 19c with the both sides of notch 18b at described fixed contact terminals.

In addition, as shown in Figure 10 (A), (B), for simple and reliable ground injecting sealing material (not shown), also can be arranged in described sealing reservoir 17a and be communicated with air channel 17b.

As shown in figure 11, form electromagnet portion 20 by assembling door shaped iron cores 30 and a pair of coil terminals 37,38 coil 39 of reeling at spool 21.

As shown in Figure 11 (A), it is integrated that described spool 21 utilizes parallel a pair of bar-shaped connecting member 22,23 that pair of flanges portion 24,25 is linked.The arm 23a, the 23b that are provided with for keeping door shaped iron core 30 described later are given prominence in two ends at described bar-shaped connecting member 23 to side.

And, as shown in Figure 11 (B), the rear side of described flange part 24 be provided with side by side for be pressed into and keep coil terminals 37,38 described later be pressed into groove 24a, 24b.On the described opposite face that is pressed into groove 24a, 24b, be respectively equipped with cross section along axis direction and be roughly leg-of-mutton ridge (not shown) for anticreep.

And then, as shown in Fig. 5 (C), be provided with the bearing portion 25a for the axial region of movable iron 40 described later 41 is supported rotationally at the end face of described flange part 25.

As shown in figure 11, door shaped iron core 30 is tabular magnetic material is punched into a type and form, the positive lower side of a shank 32 in the shank 31,32 of both sides is formed with the shallow slot 33 for reducing magnetic flux density, and, be also provided with the side-prominent outstanding projection 34 of face that supports or opposes from the outer side edges edge of described shank 32.

In addition, can also be located in the shank 32 of a shaped iron core 30 and the opposite face of the rotation axial region 43 of movable iron 40 described later arbitrary or two sides reducing the unit of magnetic flux density.Especially, be preferably located at the lower side of the line of the pushing point P that connects the axial region 41 of movable iron 40 and the operation projection 52 of card described later 50.

As shown in figure 11, coil terminals the 37, the 38th, cross section is circular pin-shaped, it is the foursquare binding 37a of portion, 38a that its upper end is formed with cross section, and portion is provided with and carries out pressure processing and roughly rotation prevention portion 37b, the 38b of squarely of cross section therebetween.

In addition, it is tetragonal shape that the described binding 37a of portion, 38a are not limited to cross section, can be also rectangle, triangle, ellipse, is preferably formed the shape for having the bight that can cut off coil 39.

And, door shaped iron core 30 is assemblied in to arm 23a, the 23b of described spool 21, and coil terminals 37,38 is pressed into respectively to flange part 24 be pressed into groove 24a, 24b, make it and be located at the anticreep ridge being pressed in groove 24a, 24b and be fixed.And, the 37a of binding portion, the 38a of described coil terminals 37,38, after the bending of side, are wound on coil 39 on described bar-shaped connecting member 22,23 and door shaped iron core 30.And then, the lead-out wire of described coil 39 is bundled in to the 37a of binding portion, the 38a of described coil terminals 37,38, after cutting off coil 39, its bight carries out soldering.Then, by by bending to the described binding 37a of portion, 38a perk, thereby complete electromagnet portion 20.

In addition, assemble electromagnet portion 20 to described base 10 and need to carry out with movable iron 40 simultaneously, after will illustrate.

As shown in Figure 2,3, movable iron 40 is by being provided with the rotation axial region 43 of axial region 41,42 in upper and lower end parts and extending from the latter half of described rotation axial region 43 to side and the rotation arm 44 with the L word shape of the extension 47 extending upward from leading section 44a forms.The outstanding anticreep projection 45 that is provided with in the lower edge portion of described rotation arm 44, and, multiple ridges 46 on the leading section 44a of its rear side, be provided with side by side by pressure processing.Described ridge 46 is set is for preventing that movable iron 40 and door shaped iron core 30 be close to because of the coherent substance that electric arc generates.

In addition, described rotation arm 44 may not be formed as L word shape, and the leading section 44a of described rotation arm 44 is as long as the shape of bending, and, can also be simple rectangular shape.

And, in the time that described electromagnet portion 20 and described movable iron 40 are assemblied in to described base 10, the axial region of movable iron 40 41 is positioned to the bearing portion 25a of the flange part 25 that is located at described spool 21, makes to become movable iron 40 is overlapped to the state on a shaped iron core 30.And, the leading section of the shank of door shaped iron core 30 31,32 is pressed into being pressed into recess 14,15 of described base 10, described in being arranged on, crushing is pressed into the jut of the crushing in recess 14,15 14a, 15a.Thereby, described in being forced into respectively, the leading section of described shank 31,32 is pressed into the medial surface with recess 14,15, and (with reference to Fig. 5 (B)) is positioned.Meanwhile, be located at the outstanding projection 34 and the location recess 11a(Fig. 2 that is located at insulation wall 11 of a shaped iron core 30) chimeric.And the axial region 42 that makes movable iron 40 in rotating loose chimerism, and is embedded in anticreep projection 45 the anticreep hole 16a of described base 10 at the bearing portion 16b of described base 10, thereby prevents from coming off.

In addition, in the time that electromagnet portion 20 has been assemblied in to base 10, as shown in Fig. 5 (A), (B), (C), the flange part 24,25 of spool 21 and the not butt of insulation wall 11 of base 10, only have a shaped iron core 30 and base 10 butts.Therefore, the error that electromagnet portion 20 is assemblied in to base 10 is little, and positioning precision is high, so have advantages of and can guarantee designed support strength and can obtain the good electromagnetic relay of operating characteristics.

As shown in figure 15, card 50 is formed as the shape of the recess 12 that can be accommodated in described base 10, from being located at the outstanding operation projection 52 that is provided with in bottom surface of its positive central insulation recess 51.Described insulation with recess 51 have can be chimeric with the square ring reinforcement 13a of described base 10 overall dimension (Fig. 4 (C)).On the other hand, described card 50 is provided with a pair of reinforcement 53,53 for insulation the upper lower edge portion at its back side is outstanding, and, on the axle center identical with described operation projection 52, be provided with and ridge 54 that can moving contacting plate 62 butts described later.Described insulation extends insulation distance (Fig. 4 (C)) with reinforcement 53 for separating upper lower edge portion that can moving contacting plate 62 described later.And described card 50 is provided with the notch 55 chimeric with the 12a of supporting projections portion that is located at described base 10 in one lateral edge portion.

Therefore, the operation projection 52 of described card 50 and notch 55 can be assemblied in respectively on the handle hole 13 and the 12a of supporting projections portion of described base 10.

As shown in Figure 2,3, contact mechanism portion 60 is made up of moving contact terminal 61 and fixed contact terminals 70.

As shown in figure 16, described moving contact terminal 61 extend from its lateral edge portion to side can moving contacting plate 62 free end riveted joint be fixed with moving contact 63.Be pressed into tongue piece 64 in described top edges portion cutting perk in can the base portion of moving contacting plate 62, and be pressed into tongue piece 65 from its lower edge portion cutting perk, and, portion of terminal 66 is extended.Described portion of terminal 66 is the folding surplus after pressure processing punching press to be folded into two foldings form, and, using bending the upper end-face edge portion of described folding surplus perk as sealing end portion 67.In addition, cut away the bight of described leading section that can moving contacting plate 62, extend and the insulation distance of the inner surface that pass through base 10 of fixed contact terminals 70 described later, thus raising insulation characterisitic.

And what being pressed into of described moving contact terminal 61 was pressed into base 10 with tongue piece 64,65 is pressed into groove 19a, 19b, and make the base portion of this portion of terminal 66 and the moving contact terminal of described base 10 notch 18a chimeric.Thereby (B) of described notch 18a(Fig. 6 blocked in the sealing end portion 67 of described moving contact terminal 61), and can moving contacting plate 62 with ridge 54 butts of card 50.

As shown in figure 17, fixed contact terminals 70 is fixed with fixed contact 72 in the leading section riveted joint of the fixed contact piece 71 extending from its lateral edge portion to side, and extend portion of terminal 73 from its lower edge portion, and, be pressed into reinforcement 74,74 from its dual-side edge cutting perk.And, process and be provided with sealing end portion 75 by projection in the rear side of the base portion of described portion of terminal 73.And the leading section of described fixed contact piece 71 is formed as along the circular shape of the periphery of described fixed contact 72, especially, the front end edge edge of described fixed contact piece 71 is cut to flush with described fixed contact 72.This be for extend and the insulation distance of the inner surface that passes through base 10 of described moving contact terminal 61 and and coil terminals 37,38 between insulation distance, thereby improve insulation characterisitic.

And, what being pressed into of described fixed contact terminals 70 was pressed into described base 10 with reinforcement 74,74 is pressed into groove 19c, 19c, its upper end 76 is positioned to be located in the positioning step portion 17 of insulation wall 11, and, make the base portion of portion of terminal 73 be embedded in described fixed contact terminals notch 18b.Then, by to being located at the sealing reservoir 17a injecting sealing material (not shown) of described positioning step portion 17 and it being solidified, thereby described fixed contact terminals 70 is fixed on base 10, fixed contact 72 and moving contact 63 are relative can connect the mode of separation.

In addition, conventionally, follow the abrasion powder of the contact that contact folding produces be attached to the inner surface of base 10 and accumulate, thereby, the easy electrical short of fixed contact and moving contact, insulation variation.To this, according to the utility model, having excised can the leading section of moving contacting plate 62 and the leading section of fixed contact piece 71.Therefore, can extend the inner surface of fixed contact 72 and base 10(recess 12) insulation distance or the inner surface of moving contact 63 and base 10(recess 12) insulation distance, have advantages of and can prevent the variation that insulate.

As shown in Figure 2,3, housing 80 has box shape that can be chimeric with described base 10, and the corner portion on surface is provided with hole 81 thereon.And as shown in figure 18, housing 80 is formed with and tapering 21a(Fig. 1 of described spool 21 in its end face corner portion) butt and preventing misplug into ridge 82 for location.And then described housing 80 has in the corner of the short brink of its end face portion the inconvenient stage portion 83 of being brought by cast gate when avoiding being shaped.

And, after housing 80 being embedded on the base 10 that is equipped with inner component parts, injecting not shown encapsulant to the bottom surface of described base 10 and solidify sealing.Once housing 80 is embedded in to base 10, the sealing end portion 75 of fixed contact terminals 70 is positioned near the medial surface of housing 80.Therefore, the sealing end portion 75 that is located at the sealing end portion 67 of moving contact terminal 61 and is located at fixed contact terminals 70 stops encapsulant to be invaded, and can prevent to move bad, loose contact.

Then,, by the hole 81 of housing described in heat seal 80, finish assembling operation.

Below, the action according to electromagnetic relay of the present utility model is described.

In the time that the coil 39 to electromagnet portion 20 does not apply voltage, due to elastic force that can moving contacting plate 62, card 50 is by the insulation wall 11 side application of forces, and moving contact 63 is opened from fixed contact 72, and the leading section 44a of the rotation arm 44 of movable iron 40 separates (Figure 13 (A)) from door shaped iron core 30.

And, carry out excitation once apply voltage to the coil 39 of described electromagnet portion 20, the leading section 44a of the rotation arm 44 of movable iron 40 is attracted, and movable iron 40 is rotated centered by axial region 41,42.And, if described rotation arm 44 is at operation projection 52(Figure 13 of pushing point P pushing card 50 (B)), do in order to the moment of torsion centered by the line of connecting axle portion 41 and pushing point P.Therefore, axial region 42 leaves from door shaped iron core 30, and the front end edge edge of the extension 47 extending from the leading section 44a of movable iron 40 is near door shaped iron core 30(Figure 13 (C)).Then, the front end edge edge of extension 47 is adsorbed on and on a shaped iron core 30, becomes stable state (Figure 13 (D)).Its result, card 50 is pushed into final position, the displacement of thickness of slab direction can moving contacting plate 62 moving contact 63 contact with fixed contact 72.

In the present embodiment, be provided with the shallow slot 33 that reduces unit as magnetic flux density in the lower side of the shank 32 of door shaped iron core 30, therefore, magnetic resistance increases, and magnetic flux density reduces.Therefore,, once 40 effects have moment of torsion to movable iron, the axial region 42 of movable iron 40 left from door shaped iron core 30 in the starting stage of stroke.Its result, has eliminated operation voltage difference, has and can obtain the electromagnetic relay with stable operating characteristics.

In addition, as the unit that reduces magnetic flux density, be not limited to shallow slot 33, for example, projection can also be set or form with the nonmagnetic material that hides magnetic sheet, copper facing etc.

And, reduce the unit of magnetic flux density and can be located in both sides in described door shaped iron core 30 and described movable iron 40 or any one.

And then, reduce the unit of magnetic flux density and can also combine above-mentioned shallow slot 33, projection, screening magnetic sheet, nonmagnetic material and form, for example, can shallow slot 33 and nonmagnetic material be set and form at door shaped iron core 30.

Then, once stop applying voltage to described coil 39,, due to elastic force that can moving contacting plate 62, card 50 is pushed back, and the operation projection 52 of card 50 pushes back the rotation arm 44 of movable iron 40, reverts to original state.

As shown in figure 19, be to be processed to form sealing end portion 67 in the rear side of the base portion of the portion of terminal 66 of moving contact terminal 61 by projection according to the second execution mode of the present utility model, and be processed to form situation about strengthening by ridge 77 by projection at fixed contact terminals 70.

According to present embodiment, have advantages of that the rate of finished products of material is good, convenient manufacture.

Other are identical with above-mentioned execution mode, and therefore, identical part is marked to identical symbol, and also description thereof is omitted.

As shown in figure 20, be to cut bending from the rear side edge part of the base portion of the portion of terminal 66 of moving contact terminal 61 according to the 3rd execution mode of the present utility model, thereby form the situation of sealing end portion 67.

According to present embodiment, long described sealing end portion 67, near the medial surface of housing 80, has advantages of and can further prevent reliably encapsulant intrusion.

Other are identical with above-mentioned execution mode, and therefore, also description thereof is omitted to mark identical symbol for identical part.

As shown in figure 21, be to be formed with the situation as the through hole of sealing end portion 67 in the rear side of the base portion of the portion of terminal 66 of moving contact terminal 61 by punching processing according to the 4th execution mode of the present utility model.

According to present embodiment, there is good, the convenient manufacture of finished material rate.

As shown in figure 22, the edge part that is the rear side of the base portion of the portion of terminal 73 from being located at fixed contact terminals 70 according to the 5th execution mode of the present utility model cuts bending, thereby is formed with the situation of the sealing end portion 75 of the length of the medial surface of close housing 80.

According to present embodiment, long flexible described sealing end portion 75 is near the medial surface of housing 80, thereby has advantages of and can further prevent reliably that encapsulant from invading.

As shown in Figure 23 to Figure 25, almost identical according to the 6th execution mode of the present utility model and above-mentioned the first execution mode, distinctive points is to be provided with double contact structure.

, as shown in Figure 24,25, leading section that can moving contacting plate 62 is halved and is provided with cutting plate 62a, 62a at Width, and, be provided with respectively moving contact 63a at the free end of described cutting plate 62a.On the other hand, by bar-shaped fixed contact 72 is set at the free end of fixed contact piece 71, thereby, be formed as the contact structure of reporting to the leadship after accomplishing a task.According to present embodiment, have advantages of and can obtain the electromagnetic relay that contact reliability is high.

Other and above-mentioned the first execution mode are roughly the same, therefore, mark identical symbol and description thereof is omitted for identical part.

Embodiment mono-

Measure according to the magnetic characteristic of the electromagnetic relay of the present embodiment.Measurement result is as shown in Figure 14 (A).In addition, similarly measured according to the magnetic characteristic of the electromagnetic relay of prior art example.Measurement result is as shown in Figure 14 (B).

In addition, in the graph of a relation of Figure 14 (A), (B), the longitudinal axis represents the load of pushing point P institute load, and transverse axis represents the amount of movement of card, i.e. stroke.And, the right-hand member side of described graph of a relation represent not to coil execute alive state,, the state that do not move of card.And, along with move in the left side to graph of a relation, show to coil and apply the state that voltage and card move.

In the utility model, the axial region 42 of movable iron 40 separates from the shank 32 of door shaped iron core 30, and the front end edge edge of extension 47 is near shank 31(Figure 13 of door shaped iron core 30 (C)).Therefore,, from Figure 14 (A), the magnetic force of the coil dotting sharply increased in the starting stage of stroke.To this, in the prior art example illustrating at Figure 14 (B), the point that magnetic force rises is rapidly slower.

, in the utility model, by arrange magnetic flux density reduce unit, can make the axial region 42 of movable iron 40 easily separate from the shank 32 of door shaped iron core 30, and can make magnetic force increase rapidly in the starting stage of stroke.Its result, can prevent the uneven of operation voltage, can obtain the electromagnetic relay with stable operating characteristics.

And, if the position that magnetic force rises is rapidly excessively slow, being greater than the magnetic force of coil with the load on spring that acts on pushing point P shown in chain-dotted line, sometimes possibly cannot move, also there is the effect that can prevent this phenomenon.

Utilizability in industry

Be not limited to above-mentioned electromagnetic relay according to electromagnetic relay of the present utility model, it is mathematical can also being applicable to other electromagnetic relays.

Symbol description

10: base

11: insulation wall

11a: location recess

12: recess

12a: supporting projections portion

13: handle hole

13a: cyclic reinforcing rib

14,15: be pressed into and use recess

14a, 15a: crushing jut

16a: anticreep hole

16b: bearing portion

17: fixed contact terminals positioning step portion

17a: sealing reservoir

17b: air channel

18a: moving contact terminal notch

18b: fixed contact terminals notch

20: electromagnet portion

21: spool

21a: tapering

22,23: bar-shaped connecting member

24,25: flange part

24a, 24b: be pressed into groove

25a: bearing portion

30: door shaped iron core

31,32: shank

33: shallow slot

34: outstanding projection

37,38: coil terminals

37a, 38a: binding portion

37b, 38b: rotation prevention portion

39: coil

40: movable iron

41,42: axial region

43: rotate axial region

44: rotate arm

44a: leading section

45: anticreep projection

46: ridge

47: extension

P: pushing point

50: card

51: operation recess

52: operation projection

53: insulation reinforcement

54: ridge

55: notch

60: contact mechanism portion

61: moving contact terminal

62: can moving contacting plate

63: moving contact

64,65: be pressed into and use tongue piece

66: portion of terminal

67: sealing end portion

70: fixed contact terminals

71: fixed contact piece

72: fixed contact

73: portion of terminal

74: be pressed into and use reinforcement

75: sealing end portion

76: upper end

77: reinforcement ridge

80: housing

81: hole

82: location ridge

83: stage portion.

Claims (3)

1. the hermetically-sealed construction of an electronic equipment, wherein, be located at the base portion of the chimeric portion of terminal that has contact terminal of notch of outer peripheral face of base, and there is a housing described base is chimeric, the fitting portion that encapsulant injects described base and described housing seals, the hermetically-sealed construction of described electronic equipment is characterised in that

Be provided with the sealing end portion of notch described in shutoff at the base portion of described portion of terminal.

2. the hermetically-sealed construction of electronic equipment according to claim 1, is characterized in that,

Described sealing end portion is by forming perk that an is bending part for described portion of terminal.

3. the hermetically-sealed construction of electronic equipment according to claim 1 and 2, is characterized in that,

Described portion of terminal is folded and is formed by the folding surplus that punching press conductive sheet is formed, and described sealing end portion is by forming a bend at end perk of described folding surplus.