WO2017130518A1 - 温度スイッチ及び温度スイッチ用絶縁ケース - Google Patents
温度スイッチ及び温度スイッチ用絶縁ケース Download PDFInfo
- Publication number
- WO2017130518A1 WO2017130518A1 PCT/JP2016/083299 JP2016083299W WO2017130518A1 WO 2017130518 A1 WO2017130518 A1 WO 2017130518A1 JP 2016083299 W JP2016083299 W JP 2016083299W WO 2017130518 A1 WO2017130518 A1 WO 2017130518A1
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- WIPO (PCT)
- Prior art keywords
- lead wire
- insulating case
- case member
- recess
- temperature switch
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/04—Bases; Housings; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5481—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element being mounted on the contact spring
Definitions
- the present invention relates to a temperature switch for opening and closing an electric circuit, and an insulating case for the temperature switch used in the temperature switch.
- the conventional filler filling process has two purposes.
- One is insulation and the other is reinforcement of the connection portion between the lead wire and the terminal.
- the former insulation is set by the physical distance between the internal charge portion and the outside, and needs to have a dimension that does not cause a problem even if the interface between the lead wire and the filler peels off.
- the latter reinforcement since the above-mentioned connecting portion inside is by the core wire (lead wire), in order to protect the connecting portion from external force, a curable resin is effective.
- the coating of the lead wire is required to be able to cope with bending, and is made of a relatively flexible resin.
- the filler to be filled as described above is composed of a resin which is liquid at the time of filling and which is cured by a chemical reaction. Therefore, failure may occur at the interface between the relatively soft lead wire covering portion and the relatively hard filler material. For example, when the lead is strongly bent, there is a problem that the end of the filler damages the coating of the lead.
- the filler is liquid at the time of filling, it requires skill in the filling operation, the filler needs to be heat-treated for curing, and the spilled filler becomes dirty. is there.
- the filler since the filler is in a liquid state at the time of filling, the central portion of the end is raised by surface tension, which makes it easier to damage the coated portion of the lead wire.
- the heat resistance of the insulating case is also limited.
- An object of the present invention is to provide a temperature switch and an insulating case for a temperature switch capable of suppressing damage to a lead wire coating portion with a simple assembly operation and capable of reliably holding the lead wire. .
- the temperature switch is connected to a temperature sensing unit that moves the movable contact to a position where the movable contact contacts the fixed contact and a position separated from the fixed contact by sensing the temperature, and is connected to the fixed contact;
- a first lead wire having a first lead wire, a second lead wire connected to the movable contact and having a covering portion, a recess for a first lead wire into which the covering portion of the first lead wire is inserted, and the second lead wire
- a second lead wire recess into which the covering portion is inserted, and the first lead wire forming a housing space in which the temperature sensing portion, the movable contact, and the fixed contact are housed by being fitted to each other
- an insulating case member and a second insulating case member is
- an insulating case for a temperature switch disposed in a temperature switch including a temperature sensing unit that moves a movable contact to a position contacting a fixed contact and a position separated from the fixed contact by sensing temperature.
- a first lead wire recess into which the covering portion of the first lead wire having a covering portion is connected to the fixed contact and the covering of the second lead wire having a covering portion connected to the movable contact The first insulating case member which has a second lead wire recess into which the portion is inserted and which is fitted to each other to form a housing space in which the temperature sensing portion, the movable contact, and the fixed contact are housed.
- a second insulating case member which has a second lead wire recess into which the portion is inserted and which is fitted to each other to form a housing space in which the temperature sensing portion, the movable contact, and the fixed contact are housed.
- a second insulating case member which has a second lead wire recess into which the portion is inserted
- damage to the coating of the lead wire can be suppressed by a simple assembly operation, and the lead wire can be reliably held.
- FIG. 1 is an exploded perspective view showing the temperature switch 1 according to the first embodiment.
- FIG. 2 is a perspective view showing the temperature switch 1 according to the first embodiment.
- FIG. 3 is an exploded perspective view showing the temperature switch insulating case (hereinafter simply referred to as “insulation case”) 10 according to the first embodiment.
- the temperature switch 1 includes a movable contact 2, a fixed contact 3, a temperature sensing unit 4, a first lead wire 5, a second lead wire 6, and an insulating case 10.
- the temperature switch 1 can be used in various applications.
- the temperature switch 1 is incorporated in an electric device such as a motor, and operates when the electric device is overheated or over current to interrupt the current path of the electric device.
- the movable contact 2 is fixed to the bottom surface of one end side of the movable plate 4b described later (for example, the same as the axial direction (Y direction) of the first lead wire 5 and the second lead wire 6 described later) By the reverse operation of 4b, the position to contact the fixed contact 3 (see FIG. 1) and the position away from the fixed contact 3 are moved.
- the movable contact 2 is electrically connected to the second lead 6 via a terminal (not shown).
- the fixed contact 3 is electrically connected to the first lead 5 via a terminal (not shown).
- the connection part of said terminal and the 1st lead wire 5 and the 2nd lead wire 6 is a position different from the temperature sensing part 4, for example. Further, in FIG.
- FIG. 1 shows an example in which the first lead wire 5 and the second lead wire 6 are arranged side by side so as to penetrate the same surface of the insulating case 10, for example, 2 facing each other of the insulating case 10
- Other configurations may be employed, such as a configuration in which the first lead wire 5 is inserted from one of the two faces and the second lead wire 6 is inserted from the other.
- the temperature sensing unit 4 includes the bimetal 4a and the movable plate 4b, and moves the movable contact 2 between the position where the movable contact 2 contacts the fixed contact 3 and the position separated from the fixed contact 3 as described above by sensing the temperature.
- the bimetal 4a is a thermally responsive element which reverses the warping direction with the set temperature as the boundary.
- the movable plate 4b supports the bimetal 4a in surface contact with the bimetal 4a, and is elastically deformed in accordance with the shape of the bimetal 4a by the inversion of the bimetal 4a.
- the movable plate 4 b is preferably a good conductor of electricity to form a current path between the movable contact 2 and the second lead wire 6.
- the central portion of the bimetal 4a and the movable plate 4b is inverted so that the central portion in the longitudinal direction (the Y direction same as the axial direction of the first lead wire 5 and the second lead wire 6) protrudes upward. Both sides of the convex part face downward.
- the movable contact 2 and the fixed contact 3 are in contact with each other. That is, the electrical contacts of the energizing circuit of the electrical device are closed, and current flows in the above current path.
- the central portion in the longitudinal direction of the bimetal 4a and the movable plate 4b is inverted downward in a convex shape, and both sides sandwiching the convex portion face upward.
- the movable contact 2 moves to a position separated from the fixed contact 3. That is, the electrical contact of the energizing circuit of the electrical device is opened, and the current path is disconnected.
- the temperature sensing unit 4 is not limited to the configuration having the bimetal 4a and the movable plate 4b, and may have another configuration such as a configuration in which the movable contact is moved using expansion of gas or liquid.
- the first lead wire 5 and the second lead wire 6 have flexibility, and at least a part of the periphery is covered by the covering portions 5a and 6a.
- the covering portions 5a and 6a are, for example, elastic bodies such as silicone rubber, fluorine rubber, vinyl resin and the like.
- the insulating case 10 has a rectangular parallelepiped shape in which each side is parallel to the X direction, Y direction, or Z direction orthogonal to each other, and the first insulating case member 11 and the second insulating case member 12 are fitted to each other.
- a housing space S shown in FIG. 1 for housing the movable contact 2, the fixed contact 3, the temperature sensing unit 4 and the like is formed.
- the material of the insulating case 10 is, for example, an insulating synthetic resin.
- the first insulating case member 11 located on the upper side is a surface on the near side (right side in FIGS.
- the second insulating case member 12 is disposed so as to cover it.
- Each of the first insulating case member 11 and the second insulating case member 12 has a first lead wire recess 11a, 12a and a second lead wire recess 11b, 12b. Further, the first insulating case member 11 further includes two pairs of outer locking holes 11c and 11d, a pair of front side convex portions 11e, and a single back side convex portion (not shown). On the other hand, the second insulating case member 12 further includes two pairs of outer locking claws 12c and 12d, a pair of front grooves 12e and 12e, and a single back groove 12f.
- the first lead wire recesses 11 a and 12 a and the second lead wire recesses 11 b and 12 b extend in parallel to the axial direction (Y direction) of the first lead wire 5 and the second lead wire 6, for example, the first lead wire 5 And a semi-cylindrical shape having a radius substantially identical to (preferably slightly larger than) the radius of the second lead wire 6.
- the lengths of the first lead wire recesses 11a and 12a and the second lead wire recesses 11b and 12b extending in the axial direction (Y direction) are sufficient to secure the insulation distance in the insulating case 10. It is desirable to have.
- the first lead wire recess 11 a of the first insulating case member 11 and the first lead wire recess 12 a of the second insulating case member 12 face each other, for example, in the Z direction, which is the vertical direction, The covering portion 5 a of the lead wire 5 is inserted. Also, the second lead wire recess 11b of the first insulating case member 11 and the second lead wire recess 12b of the second insulating case member 12 face each other, for example, in the Z direction, which is the vertical direction, and between them The cover 6 a of the second lead wire 6 is inserted.
- the first lead wire recesses 11 a and 12 a and the second lead wire recesses 11 b and 12 b are Y-directions that are outlet sides of the first lead wire 5 and the second lead wire 6 with respect to the temperature switch 1.
- chamfered portions 11a-1, 12a-1, 11b-1, and 12b-1 which are C-chamfered portions are formed at the end of the near side (right side in FIG. 2) over the entire circumference of the end, etc. It is desirable to adopt a configuration in which the end portions do not damage the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 when the first lead wire 5 and the second lead wire 6 are bent.
- each of the two pairs of outer locking holes 11 c and 11 d of the first insulating case member 11 has a first lead wire 5 and a first lead wire 5 that are orthogonal to the axial direction (Y direction).
- the first insulating case member 11 is penetrated in the arrangement direction (X direction) of the two lead wires 6 and arranged at a position opposed to this arrangement direction (X direction) (only the front side is shown in FIGS. 1 and 3) , The back side can not see hidden).
- each of the two pairs of outer locking claws 12c and 12d of the second insulating case member 12 is the housing space shown in FIG. 1 outside the arrangement direction (X direction) of the first lead wire 5 and the second lead wire 6.
- the two pairs of outer locking holes 11c and 11d and the two pairs of outer locking claws 12c and 12d form the accommodation space S shown in FIG. 1 in the arrangement direction (X direction) of the first lead wire 5 and the second lead wire 6.
- the two pairs of outer locking holes 11c and 11d and the two pairs of outer locking claws 12c and 12d form the accommodation space S shown in FIG. 1 in the arrangement direction (X direction) of the first lead wire 5 and the second lead wire 6.
- the outer locking claws 12c, 12d by inserting the outer locking claws 12c, 12d into the outer locking holes 11c, 11d, at least a pair of first locks for locking the first insulating case member 11 and the second insulating case member 12 to each other. It functions as an example of a mechanism. By locking the first insulating case member 11 and the second insulating case member 12 in this manner, the first insulating case member 11 and the second insulating case member 12 are fitted.
- the first locking mechanism is not limited to the configuration using the claws like the outer locking claws 12c and 12d, but other configurations such as a configuration using a member fitted tight can be adopted. Further, each of the two pairs of outer locking holes 11 c and 11 d and the two pairs of outer locking claws 12 c and 12 d may be provided in the vicinity of four corners in a plan view of the insulating case 10.
- the pair of front side convex portions 11e of the first insulating case member 11 project to the center side of the insulating case 10 in the arrangement direction (X direction) of the first lead wire 5 and the second lead wire 6, and the arrangement direction (X direction) (FIG. 1 and FIG. 3 show only the back side, and the front side is hidden and not visible). Further, the pair of front side grooves 12e of the second insulating case member 12 are opened to the outside in the arrangement direction (X direction) of the first lead wire 5 and the second lead wire 6, and in this arrangement direction (X direction) It is arranged at the opposite position. Then, by inserting the pair of front side convex portions 11e into the pair of front side grooves 12e, 12e, the first insulating case member 11 and the second insulating case member 12 are locked or positioned.
- the single back groove 12f of the second insulating case member 12 is opened in the upper side (one side in the Z direction) and the front side and the back side (both sides in the X direction) in FIGS.
- the first insulating case member 11 and the second insulating case member 12 are locked or positioned by inserting a not-shown back side convex portion formed inside the member 11.
- the temperature switch 1 fixes the temperature sensing portion 4 which moves the movable contact 2 to a position where the movable contact 2 contacts the fixed contact 3 and a position separated from the fixed contact 3 by sensing temperature.
- the first lead wire 5 connected to the contact 3 and having the covering portion 5a
- the second lead wire 6 connected to the movable contact 2 and having the covering portion 6a, the first insulating case member 11 and the second insulating case member 12 And.
- Each of the first insulating case member 11 and the second insulating case member 12 is a first lead wire recess 11a, 12a into which the covering portion 5a of the first lead wire 5 is inserted, and a covering portion 6a of the second lead wire 6
- the second lead wire concave portions 11b and 12b into which the second lead wire is inserted are engaged with each other to form a housing space S in which the temperature sensing portion 4, the movable contact 2 and the fixed contact 3 are housed.
- first lead wire 5 and the second lead can be obtained without the difficult work due to the fitting of the first insulating case member 11 and the second insulating case member 12 as compared with the conventional configuration using the filler.
- Line 6 can be held.
- first insulating case member 11 and the second insulating case member 12 are less likely to separate from the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 compared to the filler, this separation is suppressed It is also possible to avoid the need for installation restrictions such as regulating the bending range of the lead wires 5 and 6.
- damage to the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 can be suppressed by a simple assembly operation, and the first lead wire 5 and the first lead wire 5 The two lead wires 6 can be held securely.
- FIG. 4 is an exploded perspective view showing the temperature switch insulating case 20 according to the second embodiment.
- the insulating case 20 according to the second embodiment includes a plurality of ribs 21 a for the first lead wire recesses 21 a and 22 a and the second lead wire recesses 21 b and 22 b of the first insulating case member 21 and the second insulating case member 22.
- the insulating case 10 according to the first embodiment can be the same as that described above except that -1, 22a-1, 21b-1, and 22b-1 are formed. Therefore, about the same structure, the code
- each of the first lead wire recesses 21a and 22a and the second lead wire recesses 21b and 22b a plurality of members protruding at positions separated in the axial direction (Y direction) of the first lead wire 5 and the second lead wire 6
- the ribs 21a-1, 22a-1, 21b-1 and 22b-1 are formed. Although the number of ribs is two in the example of FIG. 4, only two ribs 22 b-1 of the second lead wire recess 22 b of the second insulating case member 22 are illustrated, and the first insulating case member 21 is illustrated.
- the first lead wire recess 21a and the second lead wire recess 21b, and the ribs 21a-1, 21b-1, and 21b-1 of the first lead wire recess 22a of the second insulating case member 22 are hidden and appear Only one is shown because it is not.
- the plurality of ribs 21a-1 of the first lead wire recess 21a of the first insulating case member 21 and the plurality of ribs 22a-1 of the first lead wire recess 22a of the second insulation case member 22 are shown in FIG. 1 and 2 are brought into contact with each other so as to clamp the covering portion 5a over the entire circumference of the covering portion 5a of the first lead wire 5 shown in FIG.
- FIG. 1 the plurality of ribs 21 b-1 of the second lead wire recess 21 b of the first insulating case member 21 and the plurality of ribs 22 b-1 of the second lead wire recess 22 b of the second insulation case member 22 are shown in FIG. It is desirable to contact each other so as to clamp the covering portion 6a over the entire circumference of the covering portion 6a of the second lead wire 6 shown in FIG. 1 and FIG.
- the ribs 21a-1 of the first lead wire recesses 21a and 22a , 22a-1 and the ribs 21b-1 and 22b-1 of the second lead wire recesses 21b and 22b do not contact each other, and the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 A configuration may be adopted in which tightening is not performed all around the same position).
- the plurality of ribs 21a-1, 22a-1, 21b project at positions where the first lead wire recesses 21a, 22a and the second lead wire recesses 21b, 22b are separated in the axial direction (Y direction). In place of -1 and 22b-1, a configuration having a single rib may be adopted.
- the effect of being able to hold the first lead wire 5 and the second lead wire 6 more reliably can be obtained.
- FIG. 5 is an exploded perspective view showing the temperature switch insulating case 30 according to the third embodiment.
- the insulating case 30 according to the third embodiment is for the first lead wire recesses 31 a and 32 a and the second lead wire of at least one (preferably both) of the first insulating case member 31 and the second insulating case member 32.
- the same can be applied to the insulating cases 10 and 20 according to the second embodiment. Therefore, about the same structure, the code of the 20s in FIG. 4 and the same code of the 30s in FIG.
- the recesses 32a-2 and 32b-2 are preferably provided, for example, along the entire circumference of the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 shown in FIGS.
- the covering portions 5 a of the first lead wire 5 and the second lead wire 6 elastically deformed by being tightened by the plurality of ribs 31 a-1, 32 a-1, 31 b-1 and 32 b-1 , 6a are accommodated in the recesses 32a-2 and 32b-2 located between the plurality of ribs 31a-1, 32a-1, 31b-1 and 32b-1, so that the first lead wire 5 elastically deformed and It is possible to prevent the escape of the cover portions 5a and 6a of the second lead wire 6 from being lost. Therefore, in addition to the effects of the first and second embodiments described above, it is possible to obtain the effect that the first lead wire 5 and the second lead wire 6 can be more reliably held.
- FIG. 6 is an exploded perspective view showing the temperature switch insulating case 40 according to the fourth embodiment.
- the insulating case 40 according to the fourth embodiment includes two pairs of the outer locking holes 41 c of the pair of outer locking holes 41 c and 41 d of the first insulating case member 41 and the second insulating case member 42.
- a pair of outer locking claws 42c of the outer locking claws 42c and 42d extend in parallel to the axial direction (Y direction) of the first lead wire 5 and the second lead wire 6 shown in FIGS. 1 and 2.
- the insulating case 40 according to the fourth embodiment can be the same as the insulating cases 10, 20, and 30 according to the first to third embodiments described above. Therefore, about the same structure, the code
- the front convex portion 41e of the first insulating case member 41 and the front groove 42e of the second insulating case member 42 do not interfere with the pair of outer locking holes 41c and the pair of outer locking claws 42c, as shown in FIG.
- the length extending downward (in the Z direction) is shorter than the front side convex portion 31 e and the front side groove 32 e shown in the third embodiment.
- the repulsive force generated by the compression of the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 is By locking the first insulating case member 41 and the second insulating case member 42 in the vicinity of the portion where the repulsive force is generated, the balance of the repulsive force (the balance of stress) can be adjusted.
- FIG. 7 is an exploded perspective view showing the temperature switch insulating case 50 according to the fifth embodiment.
- each of the first insulating case member 51 and the second insulating case member 52 includes the first lead wire recess 51a, 52a and the second lead wire recess 51b, 52b.
- the insulating case 10, 20, 30, 40 according to the first to fourth embodiments described above can be the same except that it has the second lock mechanism positioned therebetween. Therefore, about the same structure, the code of the 30s in FIG. 5 and the same code of the 50s in FIG.
- the inner locking claws 51 f in the first insulating case member 51 and the inner locking holes 52 g in the second insulating case member 52 are exemplified.
- the second lock mechanism is not limited to the configuration using the claws like the inner locking claw 51f, but other configurations such as a configuration using a member that is interference fit may be adopted. It is desirable that the inner locking claw 51 f and the inner locking hole 52 g be positioned at the center of the insulating case 50 in the arrangement direction (X direction) of the first lead wire 5 and the second lead wire 6.
- the inner locking claws 51 f After the inner locking claws 51 f project downward (in the Z direction) from the first insulating case member 51, similar to the outer locking claws 52 c and 52 d constituting the first locking mechanism, the inner locking claws 51 f shown in FIGS.
- the first lead wire 5 and the second lead wire 6 project in one of the arrangement directions (X direction). That is, the locking direction of the inner locking claw 51 f is parallel to the locking direction of the outer locking claws 52 c and 52 d.
- the inner locking hole 52g not only extends vertically, but also has a portion for accommodating a portion from which the inner locking claw 51f protrudes.
- the inner locking hole 52g is provided, for example, to penetrate the second insulating case member 52 vertically (in the Z direction) from the viewpoint of ease of molding.
- the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 compress the inner locking claw 51f and the inner locking hole 52g which are an example of the second locking mechanism.
- the repulsive force generated thereby can be suppressed more reliably in the vicinity of the portion where the repulsive force is generated. Therefore, in addition to the effects of the first to fourth embodiments described above, it is possible to obtain the effect that the first lead wire 5 and the second lead wire 6 can be held more reliably.
- FIG. 8 is an exploded perspective view showing a temperature switch insulating case 60 according to the sixth embodiment.
- the locking direction described in the fifth embodiment of the inner locking claw 61 f and the inner locking hole 62 g which are an example of the second locking mechanism is an example of the first locking mechanism It is a direction (Y direction) not parallel but orthogonal to the locking direction (X direction) of the outer locking holes 61c, 61d and the outer locking claws 62c, 62d.
- the inner locking claw 61 f protrudes downward (Z direction) from the first insulating case member 61 and then protrudes in one of the first lead wire 5 and the second lead wire 6 in the axial direction (Y direction). Except for this, it can be the same as the insulating case 10, 20, 30, 40, 50 according to the above-described first to fifth embodiments. Therefore, about the same structure, the code of 50s in FIG. 7 and the same code of 60s in FIG. 8 are attached
- the inner locking claw 61f and the inner locking hole 62g which are an example of the second locking mechanism, are the outer locking holes 61c and 61d, which are an example of the first locking mechanism, and the outer locking claw.
- the repulsive force generated by the compression of the covering portions 5a and 6a of the first lead wire 5 and the second lead wire 6 is further assured.
- a temperature sensing unit for moving the movable contact to a position contacting the fixed contact and a position separated from the fixed contact by sensing a temperature;
- a first lead wire connected to the fixed contact and having a cover;
- a second lead wire connected to the movable contact and having a cover;
- Each has a first lead wire recess into which the covering portion of the first lead wire is inserted and a second lead wire recess into which the covering portion of the second lead wire is inserted, and they are fitted to each other
- a first insulating case member and a second insulating case member that form an accommodation space in which the temperature sensing unit, the movable contact, and the fixed contact are accommodated;
- the temperature switch characterized by having.
- the first lead wire recess is formed with a plurality of ribs projecting at positions separated in the axial direction of the first lead wire
- the second lead wire recess is formed with a plurality of ribs projecting at positions separated in the axial direction of the second lead wire
- the plurality of ribs of the first lead wire recess of the first insulating case member and the plurality of ribs of the first lead wire recess of the second insulating case member are the first lead wire.
- the plurality of ribs of the recess for the second lead wire of the first insulating case member and the plurality of ribs of the recess for the second lead wire of the second insulating case member are the same as those of the second lead wire.
- the temperature switch according to appendix 1 characterized in that
- the recess for the first lead wire and the recess for the second lead wire of at least one of the first insulating case member and the second insulating case member include a recess located between the plurality of ribs.
- the first lead wire recess and the second lead wire recess extend in the axial direction of the first lead wire and the second lead wire parallel to each other, and the first lead of the first insulating case member It is arranged in the opposing direction of the wire recess and the second lead wire recess and the first lead wire recess and the second lead wire recess of the second insulating case member and in the arrangement direction orthogonal to the axial direction ,
- Each of the first insulating case member and the second insulating case member is positioned on the both sides across the housing space in the arrangement direction, and locks the first insulating case member and the second insulating case member.
- the temperature switch according to appendix 1, characterized in that
- Each of the first insulating case member and the second insulating case member is located between the first lead wire recess and the second lead wire recess, and the first insulating case member and the second insulating case are disposed.
- the first lead wire recess and the second lead wire recess extend in the axial direction of the first lead wire and the second lead wire parallel to each other, and the first lead of the first insulating case member It is arranged in the opposing direction of the wire recess and the second lead wire recess and the first lead wire recess and the second lead wire recess of the second insulating case member and in the arrangement direction orthogonal to the axial direction ,
- Each of the first insulating case member and the second insulating case member is positioned on the both sides across the housing space in the arrangement direction, and locks the first insulating case member and the second insulating case member.
- the first insulating case member and the second insulating member are orthogonal to a direction in which the pair of first lock mechanisms lock the first insulating case member and the second insulating case member.
- Lock the case member The temperature switch according to claim 5, characterized in that
- An insulation case for a temperature switch disposed in a temperature switch including a temperature sensing unit for moving a movable contact to a position contacting a fixed contact and a position separated from the fixed contact by sensing a temperature,
- the first lead wire recess portion into which the covering portion of the first lead wire connected to the fixed contact and having the covering portion is inserted, and the covering portion of the second lead wire connected to the movable contact and the covering portion is inserted Each have a second lead wire recess, and are provided with a first insulating case member and a second insulating case member fitted together.
- Insulation case for temperature switch characterized by
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Abstract
Description
図1は、第1実施形態に係る温度スイッチ1を示す分解斜視図である。
図2は、第1実施形態に係る温度スイッチ1を示す斜視図である。
温度スイッチ1は、可動接点2と、固定接点3と、感温部4と、第1リード線5と、第2リード線6と、絶縁ケース10と、を備える。温度スイッチ1は、様々な用途に用いることができるが、一例としては、モータなどの電気機器に組み込まれ、電気機器の過熱時又は過電流時に作動して電気機器の電流経路を遮断する。
第1リード線5及び第2リード線6は、可撓性を有し、周囲の少なくとも一部を被覆部5a,6aによって覆われている。この被覆部5a,6aは、例えば、シリコーンゴム、フッ素ゴム、ビニール樹脂などの弾性体である。
図4は、第2実施形態に係る温度スイッチ用絶縁ケース20を示す分解斜視図である。
本第2実施形態に係る絶縁ケース20は、第1絶縁ケース部材21及び第2絶縁ケース部材22の第1リード線用凹部21a,22a及び第2リード線用凹部21b,22bに複数のリブ21a-1,22a-1,21b-1,22b-1が形成されていることを除いて、上述の第1に係る絶縁ケース10と同様にすることができる。そのため、同様の構成については、図3における10番台の符号を、図4では20番台の同様の符号を付して説明を省略する。
図5は、第3実施形態に係る温度スイッチ用絶縁ケース30を示す分解斜視図である。
本第3実施形態に係る絶縁ケース30は、第1絶縁ケース部材31及び第2絶縁ケース部材32のうち少なくとも一方(望ましくは両方)の第1リード線用凹部31a,32a及び第2リード線用凹部31b,32bが、複数のリブの間に位置する窪み32a-2,32b-2(第1絶縁ケース部材31の窪みは隠れて見えない)を含むことを除いて、上述の第1及び第2実施形態に係る絶縁ケース10,20と同様にすることができる。そのため、同様の構成については、図4における20番台の符号を、図5では30番台の同様の符号を付して説明を省略する。
本第3実施形態によれば、複数のリブ31a-1,32a-1,31b-1,32b-1によって締め付けられることにより弾性変形する第1リード線5及び第2リード線6の被覆部5a,6aを、複数のリブ31a-1,32a-1,31b-1,32b-1の間に位置する窪み32a-2,32b-2が収容することで、弾性変形した第1リード線5及び第2リード線6の被覆部5a,6aの逃げ場が失われるのを防ぐことができる。したがって、上述の第1及び第2実施形態の効果に加え、第1リード線5及び第2リード線6をより一層確実に保持することができるという効果を得ることができる。
図6は、第4実施形態に係る温度スイッチ用絶縁ケース40を示す分解斜視図である。
本第4実施形態に係る絶縁ケース40は、第1絶縁ケース部材41の二対の外側ロック用孔41c,41dのうちの一対の外側ロック用孔41c及び第2絶縁ケース部材42の二対の外側ロック用爪42c,42dのうちの一対の外側ロック用爪42cが、図1及び図2に示す第1リード線5及び第2リード線6の軸方向(Y方向)に平行に延びる第1リード線用凹部41a,42a及び第2リード線用凹部41b,42bの軸方向(Y方向)の中心での軸方向(Y方向)に直交する面(XZ平面)上に位置する。このことを除いて、本第4実施形態に係る絶縁ケース40は、上述の第1~第3実施形態に係る絶縁ケース10,20,30と同様にすることができる。そのため、同様の構成については、図5における30番台の符号を、図6では40番台の同様の符号を付して説明を省略する。
図7は、第5実施形態に係る温度スイッチ用絶縁ケース50を示す分解斜視図である。
本第5実施形態に係る絶縁ケース50は、第1絶縁ケース部材51及び第2絶縁ケース部材52のそれぞれが、第1リード線用凹部51a,52aと第2リード線用凹部51b,52bとの間に位置する第2ロック機構を有することを除いて、上述の第1~第4実施形態に係る絶縁ケース10,20,30,40と同様にすることができる。そのため、同様の構成については、図5における30番台の符号を、図7では50番台の同様の符号を付して説明を省略する。
図8は、第6実施形態に係る温度スイッチ用絶縁ケース60を示す分解斜視図である。
本第6実施形態に係る絶縁ケース60は、第2ロック機構の一例である内側ロック用爪61f及び内側ロック用孔62gの、第5実施形態で述べたロック方向が、第1ロック機構の一例である外側ロック用孔61c,61d及び外側ロック用爪62c,62dのロック方向(X方向)と平行ではなく直交する方向(Y方向)である。つまり、内側ロック用爪61fは、第1絶縁ケース部材61から下方(Z方向)に突出した後に、第1リード線5及び第2リード線6の軸方向(Y方向)の一方に突出する。このことを除いて、上述の第1~第5実施形態に係る絶縁ケース10,20,30,40,50と同様にすることができる。そのため、同様の構成については、図7における50番台の符号を、図8では60番台の同様の符号を付して説明を省略する。
温度を感知することによって可動接点を固定接点に接触する位置と前記固定接点から離隔した位置とに移動させる感温部と、
前記固定接点に接続され、被覆部を有する第1リード線と、
前記可動接点に接続され、被覆部を有する第2リード線と、
前記第1リード線の前記被覆部が挿入される第1リード線用凹部及び前記第2リード線の前記被覆部が挿入される第2リード線用凹部をそれぞれが有し、互いに嵌め合わされることで前記感温部、前記可動接点、及び前記固定接点が収容される収容空間を形成する第1絶縁ケース部材及び第2絶縁ケース部材と、
を備えることを特徴とする温度スイッチ。
前記第1リード線用凹部には、前記第1リード線の軸方向に分離した位置で突出する複数のリブが形成され、
前記第2リード線用凹部には、前記第2リード線の軸方向に分離した位置で突出する複数のリブが形成され、
前記第1絶縁ケース部材の前記第1リード線用凹部の前記複数のリブと、前記第2絶縁ケース部材の前記第1リード線用凹部の前記複数のリブとは、前記第1リード線の前記被覆部の全周に亘って前記被覆部を締め付けるように互いに接触し、
前記第1絶縁ケース部材の前記第2リード線用凹部の前記複数のリブと、前記第2絶縁ケース部材の前記第2リード線用凹部の前記複数のリブとは、前記第2リード線の前記被覆部の全周に亘って前記被覆部を締め付けるように互いに接触する、
ことを特徴とする付記1記載の温度スイッチ。
前記第1絶縁ケース部材及び前記第2絶縁ケース部材のうち少なくとも一方の前記第1リード線用凹部及び前記第2リード線用凹部は、前記複数のリブの間に位置する窪みを含むことを特徴とする付記2記載の温度スイッチ。
前記第1リード線用凹部及び前記第2リード線用凹部は、互いに平行な前記第1リード線及び前記第2リード線の軸方向に延び、且つ、前記第1絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部と前記第2絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部との対向方向及び前記軸方向に直交する配列方向に配列され、
前記第1絶縁ケース部材及び前記第2絶縁ケース部材のそれぞれは、前記配列方向に前記収容空間を挟んだ両側の面に位置し前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックするための一対の第1ロック機構を更に有し、
前記第1リード線用凹部及び前記第2リード線用凹部は、前記第1リード線及び前記第2リード線の前記軸方向に平行に延び、
前記一対の第1ロック機構は、前記第1リード線用凹部及び前記第2リード線用凹部における前記軸方向の中心での前記軸方向に直交する面上に位置する、
ことを特徴とする付記1記載の温度スイッチ。
前記第1絶縁ケース部材及び前記第2絶縁ケース部材のそれぞれは、前記第1リード線用凹部と前記第2リード線用凹部との間に位置し前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックするための第2ロック機構を更に有することを特徴とする付記1記載の温度スイッチ。
前記第1リード線用凹部及び前記第2リード線用凹部は、互いに平行な前記第1リード線及び前記第2リード線の軸方向に延び、且つ、前記第1絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部と前記第2絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部との対向方向及び前記軸方向に直交する配列方向に配列され、
前記第1絶縁ケース部材及び前記第2絶縁ケース部材のそれぞれは、前記配列方向に前記収容空間を挟んだ両側の面に位置し前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックするための一対の第1ロック機構を更に有し、
前記第2ロック機構は、前記一対の第1ロック機構が前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックする方向とは直交する方向に前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックする、
ことを特徴とする付記5記載の温度スイッチ。
温度を感知することによって可動接点を固定接点に接触する位置と前記固定接点から離隔した位置とに移動させる感温部を備える温度スイッチに配置される温度スイッチ用絶縁ケースであって、
前記固定接点に接続され被覆部を有する第1リード線の前記被覆部が挿入される第1リード線用凹部及び前記可動接点に接続され被覆部を有する第2リード線の前記被覆部が挿入される第2リード線用凹部をそれぞれが有し、互いに嵌め合わされる第1絶縁ケース部材及び第2絶縁ケース部材を備える、
ことを特徴とする温度スイッチ用絶縁ケース。
2 可動接点
3 固定接点
4 感温部
4a バイメタル
4b 可動板
5 第1リード線
5a 被覆部
6 第2リード線
6a 被覆部
10,20,30,40,50,60 絶縁ケース
11,21,31,41,51,61 第1絶縁ケース部材
12,22,32,42,52,62 第2絶縁ケース部材
11a,12a,21a,22a,31a,32a,41a,42a,51a,52a,61a,62a 第1リード線用凹部
11b,12b,21b,22b,31b,32b,41b,42b,51b,52b,61b,62b 第2リード線用凹部
11a-1,11b-1,12a-1,12b-1 面取り部分
21a-1,21b-1,22a-1,22b-1,31a-1,31b-1,32a-1,32b-1,41a-1,41b-1,42a-1,42b-1,51a-1,51b-1,52a-1,52b-1,61a-1,61b-1,62a-1,62b-1 リブ
32a-2,32b-2,42a-2,42b-2,52a-2,52b-2,62a-2,62b-2 窪み
11c,11d,21c,21d,31c,31d,41c,41d,51c,51d,61c,61d 外側ロック用孔
12c,12d,22c,22d,32c,32d,42c,42d,52c,52d,62c,62d 外側ロック用爪
11e,21e,31e,41e,51e,61e 手前側凸部
12e,22e,32e,42e,52e,62e 手前側溝
12f,22f,32f,42f,52f,62f 奥側溝
51f,61f 内側ロック用爪
52g,62g 内側ロック用孔
S 収容空間
X 第1リード線及び第2リード線の配列方向
Y 第1のリード線及び第2のリード線の軸方向
Z 第1リード線用凹部及び第2リード線用凹部それぞれの対向方向
Claims (7)
- 温度を感知することによって可動接点を固定接点に接触する位置と前記固定接点から離隔した位置とに移動させる感温部と、
前記固定接点に接続され、被覆部を有する第1リード線と、
前記可動接点に接続され、被覆部を有する第2リード線と、
前記第1リード線の前記被覆部が挿入される第1リード線用凹部及び前記第2リード線の前記被覆部が挿入される第2リード線用凹部をそれぞれが有し、互いに嵌め合わされることで前記感温部、前記可動接点、及び前記固定接点が収容される収容空間を形成する第1絶縁ケース部材及び第2絶縁ケース部材と、
を備えることを特徴とする温度スイッチ。 - 前記第1リード線用凹部には、前記第1リード線の軸方向に分離した位置で突出する複数のリブが形成され、
前記第2リード線用凹部には、前記第2リード線の軸方向に分離した位置で突出する複数のリブが形成され、
前記第1絶縁ケース部材の前記第1リード線用凹部の前記複数のリブと、前記第2絶縁ケース部材の前記第1リード線用凹部の前記複数のリブとは、前記第1リード線の前記被覆部の全周に亘って前記被覆部を締め付けるように互いに接触し、
前記第1絶縁ケース部材の前記第2リード線用凹部の前記複数のリブと、前記第2絶縁ケース部材の前記第2リード線用凹部の前記複数のリブとは、前記第2リード線の前記被覆部の全周に亘って前記被覆部を締め付けるように互いに接触する、
ことを特徴とする請求項1記載の温度スイッチ。 - 前記第1絶縁ケース部材及び前記第2絶縁ケース部材のうち少なくとも一方の前記第1リード線用凹部及び前記第2リード線用凹部は、前記複数のリブの間に位置する窪みを含むことを特徴とする請求項2記載の温度スイッチ。
- 前記第1リード線用凹部及び前記第2リード線用凹部は、互いに平行な前記第1リード線及び前記第2リード線の軸方向に延び、且つ、前記第1絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部と前記第2絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部との対向方向及び前記軸方向に直交する配列方向に配列され、
前記第1絶縁ケース部材及び前記第2絶縁ケース部材のそれぞれは、前記配列方向に前記収容空間を挟んだ両側の面に位置し前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックするための少なくとも一対の第1ロック機構を更に有し、
前記一対の第1ロック機構は、前記第1リード線用凹部及び前記第2リード線用凹部の前記軸方向の中心を通り前記軸方向に直交する面上に位置する、
ことを特徴とする請求項1記載の温度スイッチ。 - 前記第1絶縁ケース部材及び前記第2絶縁ケース部材のそれぞれは、前記第1リード線用凹部と前記第2リード線用凹部との間に位置し前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックするための第2ロック機構を更に有することを特徴とする請求項1記載の温度スイッチ。
- 前記第1リード線用凹部及び前記第2リード線用凹部は、互いに平行な前記第1リード線及び前記第2リード線の軸方向に延び、且つ、前記第1絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部と前記第2絶縁ケース部材の前記第1リード線用凹部及び前記第2リード線用凹部との対向方向及び前記軸方向に直交する配列方向に配列され、
前記第1絶縁ケース部材及び前記第2絶縁ケース部材のそれぞれは、前記配列方向に前記収容空間を挟んだ両側の面に位置し前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックするための少なくとも一対の第1ロック機構を更に有し、
前記第2ロック機構は、前記一対の第1ロック機構が前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックする方向とは直交する方向に前記第1絶縁ケース部材と前記第2絶縁ケース部材とをロックする、
ことを特徴とする請求項5記載の温度スイッチ。 - 温度を感知することによって可動接点を固定接点に接触する位置と前記固定接点から離隔した位置とに移動させる感温部を備える温度スイッチに配置される温度スイッチ用絶縁ケースであって、
前記固定接点に接続され被覆部を有する第1リード線の前記被覆部が挿入される第1リード線用凹部及び前記可動接点に接続され被覆部を有する第2リード線の前記被覆部が挿入される第2リード線用凹部をそれぞれが有し、互いに嵌め合わされることで前記感温部、前記可動接点、及び前記固定接点が収容される収容空間を形成する第1絶縁ケース部材及び第2絶縁ケース部材を備える、
ことを特徴とする温度スイッチ用絶縁ケース。
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- 2016-11-09 CN CN201680079244.0A patent/CN108475600B/zh active Active
- 2016-11-09 JP JP2017563703A patent/JP6712731B2/ja active Active
- 2016-11-09 DE DE112016006303.2T patent/DE112016006303B4/de active Active
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Also Published As
Publication number | Publication date |
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JPWO2017130518A1 (ja) | 2018-11-15 |
CN108475600A (zh) | 2018-08-31 |
DE112016006303B4 (de) | 2023-06-15 |
DE112016006303T5 (de) | 2018-10-11 |
US20200118777A1 (en) | 2020-04-16 |
CN108475600B (zh) | 2020-04-21 |
US11069497B2 (en) | 2021-07-20 |
JP6712731B2 (ja) | 2020-06-24 |
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