CN202662514U - Rotating electric part - Google Patents
Rotating electric part Download PDFInfo
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- CN202662514U CN202662514U CN 201220223116 CN201220223116U CN202662514U CN 202662514 U CN202662514 U CN 202662514U CN 201220223116 CN201220223116 CN 201220223116 CN 201220223116 U CN201220223116 U CN 201220223116U CN 202662514 U CN202662514 U CN 202662514U
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- bearings
- parts
- periphery wall
- case member
- lubricant
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Abstract
The utility model provides a rotating electric part which can reduce the number of parts and can obtain the required waterproof property by using a simplified structure. The rotating electric part is provided with a lubricant holding part, wherein the lubricant holding part comprises a plurality of concave parts (24) arranged in insertion holes (21a) of a bearing segment (21) of a bearing part (2) and an annular groove part (14) arranged at a flange part (12) of a shaft part (1) which is opposite to the concave parts (24), wherein a lubricant is held in the lubricant holding part to obtain the waterproof property of a gap between the shaft part (1) and the bearing part (2). In addition, the bearing part (2) is provided with a first outer peripheral wall (26) with an oblique part (26a), and a housing part (3) is provided with a second outer peripheral wall (33) with an oblique part (33a), so that the oblique part (26a) can be in butt joint with the oblique part (33a), and the waterproof property of the bearing part (2) and the housing part (3) can be obtained.
Description
Technical field
The utility model relates to rotary electrical unit, particularly has the rotary electrical unit such as encoder, variable resistance, switch of water proofing property.
Background technology
As the existing rotary electrical unit that possesses water proofing property, known following rotary electrical unit: between the axle that is rotated operation by the operator and the bearing with the mode retainer shaft that can rotate, put into lubricant, thereby obtain the lubricant effect between axle and the bearing, and, 2 places of the separation between axle and bearing put into O-ring gasket, make the O-ring gasket distortion and be close to axle and bearing, anti-sealing is to the immersion (for example, with reference to patent documentation 1) in the gap of axle and bearing thus.
In addition, in electric component in recent years, require miniaturization, low price, water proof structure also requires the structure more simplified and structure that can miniaturization.
In the water proof structure of foregoing, as to use O-ring gasket electric component, can't avoid the increase of parts number of packages, in addition, be accompanied by the miniaturization of electric component, the O-ring gasket miniaturization of also having to, thereby be necessary to improve pack into the machining accuracy of groove processing of usefulness of O-ring gasket, caused the rising of component processing expense.Moreover because the miniaturization of O-ring gasket, the also difficult of operation of packing into of O-ring gasket has caused the rising of assembly expenses.
Patent documentation 1: Japan opens flat 7-14304 communique in fact
The utility model content
In view of the above problems, the purpose of this utility model is, provides the structure that can cut down the parts number of packages and can utilize simplification to obtain the rotary electrical unit of desired fire resistance characteristic.
In order to reach above-mentioned purpose, in rotary electrical unit of the present utility model, it is characterized in that possessing: parts of bearings has the bearing portion of tubular; Case member relatively disposes with described parts of bearings; Spindle unit, have the axial region that rotatably remains in the described bearing portion and be located at a distolateral flange part of this axial region, described axial region is inserted logical described bearing portion, and the other end is side-prominent, and described flange part is accommodated in the accommodation section that is made of described parts of bearings and described case member; And testing agency, detect the spinning movement of described spindle unit; At the inner peripheral surface of described bearing portion, be provided with the recess that extends along the rotation direction of described spindle unit, lubricant is remained in the described recess.
By this feature, in rotary electrical unit of the present utility model, owing to be maintained at the gap that lubricant in the recess of the inner peripheral surface of being located at bearing portion fills the axial region of the bearing portion of parts of bearings and spindle unit, thereby only with lubricator just can obtain fire resistance characteristic.Thus, do not need O-ring gasket etc., can cut down the parts number of packages, and the structure of the enough simplification of energy obtains the fire resistance characteristic of requirement.
In rotary electrical unit of the present utility model, it is characterized in that, described recess arranges a plurality of along circumferentially having the interval on the described inner peripheral surface of described bearing portion, one end of this recess becomes the open end that the described accommodation section side of described parts of bearings is open, and another of this recess is distolateral to be set to described bearing portion midway continuously, position on the extended line of the described recess in the described flange part relative with the described open end of described recess, be provided with around the slot part of the ring-type of described axial region, consist of the lubricant maintaining part by described recess and this slot part, in this lubricant maintaining part, maintain described lubricant.
By this feature, in rotary electrical unit of the present utility model, because lubricant is filled to a plurality of recesses and is filled to the slot part of ring-type, the lubricant that is filled in recess links to each other with the lubricant that is filled in recess, even thereby the loading generation of lubricant is poor between a plurality of recesses, also by the rotary manipulation spindle unit, via the slot part of ring-type lubricant is supplied to the less recess of loading of lubricant from the more recess of the loading of lubricant, becomes uniform lubricant occupied state so can adjust the lubricant loading of a plurality of recesses.Thus, can obtain stable fire resistance characteristic.
In rotary electrical unit of the present utility model, it is characterized in that, it is larger than described axial region that described flange part forms diameter, surface in the described accommodation section of described parts of bearings side, be provided with the depressed part of a part of holding described flange part, the described open end of described recess is exposed at the inner bottom surface of this depressed part, between the described inner bottom surface of an end face of the described flange part of the outer circumferential side of described slot part and described depressed part, be provided with the first space part that links to each other with described lubricant maintaining part, and between the inner peripheral surface of the outer peripheral face of described flange part and described depressed part, be provided with the Second gap section that links to each other with described the first space part.
By this feature, in rotary electrical unit of the present utility model, because lubricant is filled to the lubricant maintaining part that the slot part by a plurality of recesses and ring-type consists of, and can be filled to the first space part that links to each other with the lubricant maintaining part and the Second gap section that links to each other with the first space part, even thereby in the too much situation of lubricant loading, lubricant also is maintained in the Second gap section of the first space part, is difficult to expose from Second gap section.Thus, the management of lubricant loading becomes easily, thereby can be coated with the lubricant that can fill fully the amount of lubricant maintaining part, and can obtain stable fire resistance characteristic.
In rotary electrical unit of the present utility model, it is characterized in that, bottom surface at the described case member relative with the described flange part of described spindle unit, be provided with protuberance or the hole section of section circle, at the described flange part relative with the described bottom surface of described case member, be provided with hole section or the protuberance of section circle, the described hole section of described flange part or the described protuberance of described protuberance and described case member or described hole section engage in rotation mode freely.
By this feature, when rotary electrical unit of the present utility model being rotated operation, spindle unit is kept by the protuberance of the bearing portion of the tubular of parts of bearings and the bottom surface of being located at case member or this 2 place of hole section, simultaneously rotation.Thus, because the swing of the spindle unit during rotation diminishes, thereby the variation in the space of the axial region of the bearing portion of the parts of bearings in spindle unit when rotation and spindle unit is suppressed to littlely, and the lubricant that is filled in recess becomes and is difficult to interrupt, thereby can obtain stable fire resistance characteristic.
In rotary electrical unit of the present utility model, it is characterized in that, peripheral part along the surface relative with described case member of described parts of bearings, be provided with the first periphery wall around the whole, the surface relative with described parts of bearings at described case member, spread all over and be provided with the second periphery wall that overlaps with described the first periphery wall all-roundly, in the end of described the first periphery wall that overlaps and the end of described the second periphery wall, be respectively equipped with the rake that front attenuates.
By this feature, in rotary electrical unit of the present utility model, when making parts of bearings and case member butt, contact in certain position because the rake of the first periphery wall and the coincidence of the second periphery wall is inevitable, thereby can improve the seal of abutting part, can improve the water resistance between parts of bearings and case member.
In rotary electrical unit of the present utility model, it is characterized in that at the described rake of described the first periphery wall that overlaps and the described rake of described the second periphery wall, it is poor that its angle of inclination is arranged.
By this feature, in rotary electrical unit of the present utility model, because the rake angle of inclination in the end of the rake of the end of the first periphery wall and the second periphery wall is variant, thereby the rake of the inevitable periphery wall with the opposing party of the front end of the larger side's in angle of inclination periphery wall fastens, so it is clear that snap portions becomes, it is easy that the accuracy control of parts becomes, therefore, the seal of abutting part can be kept reliably, the water resistance between parts of bearings and case member can be improved.
In rotary electrical unit of the present utility model, it is characterized in that, described the first periphery wall and described the second periphery wall are rectangle, bight in the inboard of described first periphery wall of described parts of bearings, the hole section that the end is arranged of depression is set along the direction away from described case member, bight in the inboard of described second periphery wall of described case member arranges the hole section that the end is arranged of depression along the direction away from described parts of bearings.
By this feature, in rotary electrical unit of the present utility model, because the first periphery wall and the second periphery wall are rectangle, thereby the bight of the more periphery wall at rectangle of undesired immersion produces, be respectively arranged with the hole section at the end by the bight in the inboard of the first periphery wall and the second periphery wall, thereby can catch undesired immersion in this hole section, thereby can improve the water resistance between parts of bearings and case member.
In rotary electrical unit of the present utility model, owing to the lubricant in the recess that is maintained at the inner peripheral surface of being located at bearing portion fills the bearing portion of parts of bearings and the axial region of spindle unit, thereby only with lubricator just can obtain the fire resistance characteristic between parts of bearings and the spindle unit.Thus, do not need O-ring gasket etc., can cut down the parts number of packages, and the structure of the enough simplification of energy obtains the fire resistance characteristic of requirement.
Description of drawings
Fig. 1 is the stereoscopic figure as the encoder of the rotary electrical unit of execution mode of the present utility model.
Fig. 2 is the exploded perspective view of the formation of the encoder of expression execution mode of the present utility model.(a) be the exploded perspective view of observing from oblique upper.(b) be exploded perspective view from oblique beneath.
Fig. 3 is the stereogram from beneath of expression leaf spring to the installment state of parts of bearings.
Fig. 4 is the stereogram of expression lubricant to the coating state of spindle unit.
Fig. 5 is A-A profile structure, Fig. 1 of the encoder of expression execution mode of the present utility model.
Fig. 6 is B-B profile structure, Fig. 1 of the encoder of expression execution mode of the present utility model.
The center section plan of the state of the lubricant when Fig. 7 inserts parts of bearings for being used for explanation with spindle unit.(a) be that the insertion of spindle unit is when beginning.(b) be when being inserted into spindle unit midway.(c) be when being inserted into spindle unit before the final position.(d) be when spindle unit is inserted into the final position.
Fig. 8 is the center section plan at the inclination angle of the second rake of the inclination angle of rake of the first periphery wall of expression parts of bearings and case member.
Fig. 9 is the major part of the center section plan of the butt state of the second rake of the rake of the first periphery wall of expression parts of bearings and case member.
Symbol description:
1 spindle unit
11 axial regions
12 flange parts
13 code plate (コ ー De plates) installation portion
14 slot parts
15 protuberances
16 code plates (testing agency)
17 hole sections
2 parts of bearings
21 bearing portions
The 21a inserting hole
22 main parts
23 accommodation sections
24 recesses
25 flange accommodation sections (depressed part)
26 first periphery walls
The 26a rake
27 have the hole section at the end
2a the first space part
2b Second gap section
2c butt position
3 case members
31 accommodation sections
32 slip (testing agency)
33 second periphery walls
The 33a rake
34 protuberances
35 have the hole section at the end
36 terminals
4 members of frame
5 leaf springs
6 lubricants
Embodiment
Below, with reference to description of drawings execution mode of the present utility model.In addition, although the rotary electrical unit of present embodiment is rotary-type absolute encoder (following omission is recited as encoder), but the purposes of utility model is not limited to this, but can be applicable to the various rotary electrical units such as rotary-type incremental encoder, variable resistance, switch.
＜execution mode 〉
Fig. 1 is the stereogram of the encoder of execution mode of the present utility model.
As shown in Figure 1, the outward appearance of the encoder of execution mode of the present utility model is by the parts of bearings 2 of case shape roughly, roughly case member 3, spindle unit 1 and the members of frame 4 of case shape consist of, and wherein, parts of bearings 2 has the bearing portion 21 of tubular; Case member 3 disposes with parts of bearings 2 oppositely; Spindle unit 1 is more outstanding than the bearing portion 21 of parts of bearings 2, has the axial region 11 of the operation of being rotated; Members of frame 4 keeps parts of bearings 2 and case member 3.
Below, with reference to Fig. 2 (a) and (b) and Fig. 8, put down in writing the explanation of each component parts.
Fig. 2 (a) is the exploded perspective view from the oblique upper observation of the formation of the encoder of expression execution mode of the present utility model, (b) is the exploded perspective view from oblique beneath.
Upper surface (surfaces of axial region 11 sides) at code plate installation portion 13, be formed with the click sense of rattling away and produce half-terete a plurality of protuberances 15 of usefulness, end face (lower surface) in the side opposite with axial region 11 of code plate installation portion 13, wait Embedment and installation to have as code plate 16 inscape of the testing agency of detection spinning movement, that consisted of by metallic plate by inserting shapings, also be provided with projection in central authorities, be provided with the hole section 17 of circle in the central authorities of projection.
In addition, form section D font near the leading section of axial region 11, be provided with for the planar portions that the parts such as knob that spindle unit 1 is operated are installed.
Parts of bearings 2 is formed by moulding material etc., on a side's (top) of the main part 22 of case shape surface roughly, has roughly bearing portion 21 cylindraceous, and the inserting hole 21a that is located at bearing portion 21 connects to main part 22 from bearing portion 21.
The aperture of inserting hole 21a changes at 2 steps, and a square hole of the front of bearing portion 21 directly diminishes, in this part, with the as far as possible little gap axial region 11 of retainer shaft parts 1 rotatably.
The concavity on the surface of a side relative with case member 3 of main part 22 is circular, becomes accommodation section 23, and the code plate installation portion 13 that comprises spindle unit 1 is taken in the part of interior flange part 12 in this accommodation section 23.
The central authorities of the inner bottom surface of accommodation section 23 (in Fig. 2 for being positioned at the end face of diagram upper side) further upward side depression be circular, become the flange accommodation section (depressed part) 25 of the part (top) of the flange part 12 that holds spindle unit 1, centre position at the inner bottom surface of the accommodation section 23 that links to each other with flange accommodation section 25, be provided with for the columned projection that leaf spring 5 is installed, this leaf spring 5 is for generation of the click sense of rattling away.
The diameter of the inner peripheral surface of the circular of flange accommodation section 25 is set as slightly larger than the diameter of the upper side of flange part 12, when inserting the top of flange part 12, between the outer peripheral face on the top of the inner peripheral surface of flange accommodation section 25 and flange part 12, be formed with a little the gap.
In addition, in the central authorities of the inner bottom surface (end face) of flange accommodation section 25, the side of inserting hole 21a of being located at bearing portion 21 is open.Inner peripheral surface in the flange accommodation section of inserting hole 21a 25 sides, along circumferentially having the compartment of terrain a plurality of recesses 24 are set, one end (lower end) of this recess 24 becomes in the open open end of the inner bottom surface of flange accommodation section 25, and another distolateral rotation direction at spindle unit 1 extends to inserting hole 21a midway.The circular slot part 14 of aforesaid spindle unit 1 is formed on the flange part 12, this flange part 12 be positioned at as the relative position of an end of the open end of a plurality of recesses 24.That is, circular slot part 14 is positioned on the extended line of a plurality of recesses 24 that extend along the rotation direction of spindle unit 1 and arranges.
On main part 22, along the profile on the surface of a side relative with case member 3, uprightly be provided with the first periphery wall 26 of periphery seal.End (bottom) at the first periphery wall 26 of rectangle is provided with the medial surface with rake 26a, and this rake 26a is with tiltangleθ 1 shown in Figure 8.In addition, the side relative with case member 3 of main part 22, by the bight that the depths of the depression of the first periphery wall 26 and accommodation section 23 surrounds, be provided with a plurality of hole sections 27 that the end is arranged.
In the leaf spring 5 of execution mode of the present utility model, make protuberance 52 for hemispheric outstanding, and be planar portions 53 around making.Thus, leaf spring 5 packed in the product and the code plate installation portion 13 by spindle unit 1 when making the wrist strain, planar portions 53 is difficult to distortion, produce half-terete a plurality of protuberances 15 of usefulness so leaf spring 5 produces larger elastic stress and strongly presses the click sense of rattling away, thereby can obtain the sense of rattling away of good click.
On case member 3, inboard slightly along the profile on the surface of a side relative with parts of bearings 2 uprightly is provided with the second closed periphery wall 33 on every side.End (upper end) at the second periphery wall 33 of rectangle is provided with the lateral surface with rake 33a, and this rake 33a is with tiltangleθ 2 shown in Figure 8.The rake 26a of the inboard of the first periphery wall 26 of parts of bearings 2 is configured in relative position with the rake 33a in the outside of the second periphery wall 33 of case member 3.In addition, a side relative with parts of bearings 2, by the bight that the depths of the depression of the second periphery wall 33 and accommodation section 31 surrounds, be provided with a plurality of hole sections 35 that the end is arranged.
Members of frame 4 is with the metal material bending of the excellent processabilities such as soft iron steel plate, form and be roughly U font when the side is observed, in the par of central authorities (end face), be provided with the hole of the perforation usefulness of bearing portion 21, the fore-end of 2 side surface part that bend downwards from the par partly extends respectively, and is formed with the claw of hook portion and 2 riveted joint usefulness, the claw of described 2 riveted joint usefulness keeps parts of bearings 2 and case member 3 with the butt state, and described hook portion is used for being installed to printed base plate etc.
Then, with reference to Fig. 3 to Fig. 5, be accompanied by the assembling sequence of the related encoder of execution mode of the present utility model, the structure of encoder is described.Fig. 3 for the expression leaf spring to the stereogram from beneath of the installment state of parts of bearings, Fig. 4 is the stereogram of explanation lubricant to the coating state of spindle unit, Fig. 5 is the A-A profile of Fig. 1 of the structure of presentation code device.
As shown in Figure 3, by hot riveting etc. leaf spring 5 is fixed in the inner bottom surface of the accommodation section 23 of parts of bearings 2.
The flange part 12 of the axial region 11 of spindle unit 1 slightly above, as shown in Figure 4, the lubricant 6 that will have resistance to water is coated all-round.
At first, bearing portion 21 sides from parts of bearings 2 are assembled to members of frame 4 parts of bearings 2 that leaf spring 5 has been installed.Afterwards, the spindle unit 1 that has been coated with lubricant 6 is inserted the inserting hole 21a of parts of bearings 2.Then, case member 3 is assembled to parts of bearings 2, makes the rake 33a butt of the second periphery wall 33 sides of the rake 26a of the first periphery wall 26 sides of parts of bearings 2 and case member 3.At last, by the pawl of bending members of frame 4, as shown in Figure 5, parts of bearings 2 and case member 3 are kept (clamping) by members of frame 4, and assembling finishes.
Under assembled state, leaf spring 5 engages with 15 of 2 protuberances of the adjacency of the upper surface of the code plate installation portion 13 of spindle unit 1, and by the elastic force of leaf spring 5 spindle unit 1 is pressed on case member 3.As shown in Figure 5, the part (top) of the flange part 12 of spindle unit 1 is contained in the flange accommodation section 25 of parts of bearings 2, between the inner bottom surface of the end face (upper surface) of the outer circumferential side that is positioned at slot part 14 of flange part 12 and flange accommodation section 25, be provided with the first space part 2a.In addition, between the medial surface (inner peripheral surface) of the side of flange part 12 (outer peripheral face) and flange accommodation section 25, be formed with the 2b of Second gap section.In addition, for easy understanding, in Fig. 5, omitted lubricant 6.
In the encoder of execution mode of the present utility model, adopt proof mechanism of water at following position, 2 place.
(1) gap between the inserting hole 21a of spindle unit 1 and parts of bearings 2
(2) abutting part of parts of bearings 2 and case member 3
Below, the proof mechanism of water and the effect thereof that adopt at above-mentioned position are described.
Among the above-mentioned position of taking proof mechanism of water,
(1) proof mechanism of water in the gap between the inserting hole 21a of spindle unit 1 and parts of bearings 2 carries out to the gap-fill lubricant time.
Between the inserting hole 21a of spindle unit 1 and parts of bearings 2 and since spread all over axial region 11 all-roundly have the gap, so adopt the structure of following record, spreading all over all-round filling lubricant 6, and the lubricant holiday of generating portion not.
In the encoder of execution mode of the present utility model, by controlling the distributor of lubricant applying condition, spread all over the all-round equably application of lubricating 6 of the assigned position of axial region 11, and lubricant applying buret reason is ormal weight.Thus, sought the homogenizing of lubricant to the occupied state of gap portion.
Moreover, can keep the zone of lubricant 6 to be made as lubricant maintaining part, the first space part 2a and the 2b of Second gap section, allow to keep the zone of lubricant larger, wherein the lubricant maintaining part is made of a plurality of recesses 24 and the slot part 14 that is positioned at the ring-type that arranges on the extended line of these recesses 24.
In addition, in the encoder of execution mode of the present utility model, in the process of assembling, utilize the situation of the volume minimizing of the first space part 2a, the lubricant 6 of coating spindle unit 1 is filled in a plurality of recesses 24 forcibly, has avoided to the lack of fill of a plurality of recesses 24.
Below, with reference to Fig. 7, the compulsory filling process of this lubricant 6 is described.The key diagram of the state of the lubricant when Fig. 7 inserts parts of bearings 2 for expression with spindle unit 1.In addition, Fig. 7 (d) expression is inserted into the final position with spindle unit and the state of case member 3 has been installed.
If the spindle unit 1 that will be coated with lubricant 6 inserts the inserting hole 21a of parts of bearings 2, then measure when less when the insertion of spindle unit 1, shown in Fig. 7 (a), lubricant 6 is kept the state that is coated with and is entered to the flange accommodation section 25 of parts of bearings 2.
If further insert spindle unit 1, then shown in Fig. 7 (b), although the part of lubricant 6 is introduced in a plurality of recesses 24, squeezed time of another part (nubbin) and being filled in the space that the end face by the flange part 12 of the inner bottom surface of the flange accommodation section 25 of parts of bearings 2 and spindle unit 1 consists of.
If further insert spindle unit 1, then shown in Fig. 7 (c), lubricant 6 is full of the space that the end face by the flange part 12 of the inner bottom surface of the flange accommodation section 25 of parts of bearings 2 and spindle unit 1 consists of, and then another part immerses the 2b of Second gap section by side (outer peripheral face) formation of the flange part 12 of the medial surface (inner peripheral surface) of the flange accommodation section 25 of parts of bearings 2 and spindle unit 1.
If spindle unit 1 is inserted into final insertion position, namely be positioned at hole section 17 around the front end of projection of end face of spindle unit 1 and the position of the bottom surface butt of the accommodation section 31 of case member 3, then shown in Fig. 7 (d), the volume in the space that is made of the end face of the flange part 12 of the inner bottom surface of the flange accommodation section 25 of parts of bearings 2 and spindle unit 1 reduces, and become very little gap in final insertion position, form the first space part 2a.
The minimizing of the volume in the space that the end face by the flange part 12 of the inner bottom surface of the flange accommodation section 25 of parts of bearings 2 and spindle unit 1 by this moment consists of, the lubricant 6 that remains in this space is extruded, a part immerses a plurality of recesses 24, and another part immerses the Second gap 2b of section.At this moment, because the gap of the Gap-Ratios Second gap 2b of section of a plurality of recesses 24 is larger, thereby more lubricant 6 immerses a plurality of recess 24 sides, has eliminated the lack of fill of the lubricant 6 of a plurality of recesses 24.
By more than, the lubricant 6 that carries out to the insertion of parts of bearings 2 by spindle unit 1 is to the compulsory end-of-fill of a plurality of recesses 24.
Yet, owing to also have lubricant 6 to the inhomogeneous possibility of the filling of a plurality of recesses 24, thereby in the encoder of execution mode of the present utility model, also make the open end of a plurality of recesses 24 relative with the slot part 14 of ring-type.Thus, at the loading of lubricant 6 in 24 situations devious of a plurality of recesses, by making spindle unit 1 rotation, thereby lubricant 6 moves to slot part 14 from the more recess 24 of the loading of lubricant 6, lubricant 6 less recess 24 supplies of loading of 6 from slot part 14 to lubricant, in a plurality of recess 24 integral body, the occupied state of lubricant 6 is homogenizing roughly.
In addition, be connected with the slot part 14 of ring-type and the first space part 2a is set, be connected with the first space part 2a and the 2b of Second gap section is set, thus, in the more situation of the coating weight of lubricant 6, by making spindle unit 1 rotation, the lubricant 6 of the surplus of a plurality of recesses 24 is expressed into the first space part 2a, and then be expressed into the 2b of Second gap section, in the less situation of the coating weight of lubricant 6, by making spindle unit 1 rotation, lubricant 6 is from the 2b of Second gap section, and then being introduced into a plurality of recesses 24 from the first space part 2a, the occupied state of the lubricant 6 of a plurality of recess 24 integral body is homogenizing more.
In addition, be rotated guiding by the hole section 17 with the end of 34 pairs of parts of bearings 2 of protuberance of case member 3, thereby the position of the rotation of retainer shaft parts 1 becomes the front end of inserting hole 21a of parts of bearings 2 and the protuberance 34 of case member 3, keeps the interval at the position of rotation to become the maximum length that can obtain.Thus, because can be with the vibration suppression of the spindle unit 1 in when rotation to minimum, the change in the gap between the inserting hole 21a when making spindle unit 1 rotation, spindle unit 1 and parts of bearings 2 is Min., thereby has suppressed the generation of the lubricant holiday that the change by the gap causes.
By these proof mechanism of water, can obtain the fire resistance characteristic in the gap between the inserting hole 21a of spindle unit 1 and parts of bearings 2.
In addition, taking among the position of proof mechanism of water,
(2) proof mechanism of water of the abutting part of spindle unit 2 and case member 3 is close to reliably such structure by employing by the abutting part (bearing surface) of the parts of bearings 2 of members of frame 4 clampings and case member 3 and is carried out.
Namely, at parts of bearings 2 and case member 3 periphery wall is set respectively, as shown in Figure 8, make the lateral surface of the second periphery wall 33 of the medial surface of the first periphery wall 26 of parts of bearings 2 and case member 3 become respectively rake 26a, 33a with tiltangleθ 1, θ 2, make rake against each other, thus, size, the shape at parts of bearings 2 and case member 3 produces in the situation of error immediately, and the arbitrary position among rake 26a, the 33a also must butt.
Thus, rake 26a, the 33a of the first periphery wall 26 of parts of bearings 2 and the second periphery wall 33 of case member 3 are close to, and have obtained the fire resistance characteristic of the abutting part of parts of bearings 2 and case member 3.
Moreover, the differential seat angle that the tiltangleθ 2 of the rake 33a of the second periphery wall 33 of the tiltangleθ 1 of the rake 26a of the first periphery wall 26 of parts of bearings 2 and case member 3 is arranged slightly, particularly, in the encoder of execution mode of the present utility model, as shown in Figure 8, make the rake 26a of the first periphery wall 26 of parts of bearings 2 slightly close to vertically.
Thus, as shown in Figure 9, butt position 2c becomes the root of rake 33a of the second periphery wall 33 of the front end of rake 26a of the first periphery wall 26 of parts of bearings 2 and case member 3.By determining butt position 2c, thus, the size management of parts becomes easy, and, because the first periphery wall 26 of parts of bearings 2 and the leading section butt of rake 26a, so spread all over the all-round strain of carrying out of periphery wall, so the first periphery wall 26 easy strains, even have in component shape in the situation of fluctuating, the first periphery wall 26 strains of parts of bearings 2 and the shape of imitating the second periphery wall 33 of case member 3, obtain the effect that all zones are close to easily, the water proofing property of the abutting part of parts of bearings 2 and case member 3 improves.
In addition, because the first periphery wall 26 and the second periphery wall 33 are essentially rectangular, thereby the easy strain of the straight line portion of rectangle and being close to reliably, but the bight but becomes firm and is difficult to strain.Therefore, suppose to produce fluctuating at rake 26a, the 33a in bight, then might shape not imitate, be close to impaired.As its countermeasure, as shown in Figure 6, the bight in the inboard of parts of bearings 2 and case member 3 periphery wall separately is provided with the hole section 27,35 at the end.
Thus, even in being close to of bight impaired situation, because the gap immersion amount minimum and water that produces in the bight is micro-, thereby catch near the hole section 27 that the end is arranged, 35 that the water that the bight is immersed also is located at the bight, prevented that water from immersing the inside of encoder.
In the encoder of execution mode of the present utility model, obtained fire resistance characteristic by above formation, still, for example the magnitude relationship of the end of the end of the first periphery wall 26 and the second periphery wall 33 also can be opposite.That is, also can constitute: the lateral surface side in the end of the first periphery wall 26 arranges rake 26a, and the medial surface side in the end of the second periphery wall 33 is arranged on the relative rake 33a of outer circumferential side of this rake 26a, and two rakes are against each other.In addition, also can make the magnitude relationship of tiltangleθ 2 of rake 33a of the tiltangleθ 1 of rake 26a of the first periphery wall 26 and the second periphery wall 33 opposite.Moreover the change of appending intermediate member with same periphery wall structure etc. between parts of bearings 2 and case member 3 also can access same fire resistance characteristic.
In addition, also can carry out change that fire resistance characteristic is not exerted an influence, for example, make the son 32 that slides be drawer at movable side, make code plate 16 be fixation side.In addition, keep structure to carry out following change to the rotation of spindle unit 1, that is, making spindle unit 1 side is protuberance (protuberance), and to make case member 3 sides be recess (hole section) etc., also can access equal fire resistance characteristic.
Claims (7)
1. rotary electrical unit is characterized in that possessing:
Parts of bearings has the bearing portion of tubular;
Case member relatively disposes with described parts of bearings;
Spindle unit, have the axial region that rotatably remains in the described bearing portion and be located at a distolateral flange part of this axial region, described axial region is inserted logical described bearing portion, and the other end is side-prominent, and described flange part is accommodated in the accommodation section that is made of described parts of bearings and described case member; And
The spinning movement of described spindle unit detects in testing agency;
At the inner peripheral surface of described bearing portion, be provided with the recess that extends along the rotation direction of described spindle unit, lubricant is remained in the described recess.
2. rotary electrical unit according to claim 1 is characterized in that:
Described recess arranges a plurality of along circumferentially having the interval on the described inner peripheral surface of described bearing portion, one end of this recess becomes the open end that the described accommodation section side of described parts of bearings is open, and another of this recess is distolateral to be set to described bearing portion midway continuously
Position on the extended line of the described recess in the described flange part relative with the described open end of described recess is provided with around the slot part of the ring-type of described axial region,
Consist of the lubricant maintaining part by described recess and this slot part, in this lubricant maintaining part, maintain described lubricant.
3. rotary electrical unit according to claim 2 is characterized in that,
It is larger than described axial region that described flange part forms diameter,
On the surface of the described accommodation section of described parts of bearings side, be provided with the depressed part of a part of holding described flange part, the described open end of described recess is exposed at the inner bottom surface of this depressed part,
Between the described inner bottom surface of an end face of the described flange part of the outer circumferential side of described slot part and described depressed part, be provided with the first space part that links to each other with described lubricant maintaining part, and
Between the inner peripheral surface of the outer peripheral face of described flange part and described depressed part, be provided with the Second gap section that links to each other with described the first space part.
4. rotary electrical unit according to claim 1 is characterized in that:
In the bottom surface of the described case member relative with the described flange part of described spindle unit, be provided with protuberance or the hole section of section circle,
At the described flange part relative with the described bottom surface of described case member, be provided with hole section or the protuberance of section circle,
The described hole section of described flange part or the described protuberance of described protuberance and described case member or described hole section engage in rotation mode freely.
5. each described rotary electrical unit in 4 according to claim 1 is characterized in that,
Peripheral part along the surface relative with described case member of described parts of bearings is provided with the first periphery wall around the whole,
On the surface relative with described parts of bearings of described case member, spread all over and be provided with the second periphery wall that overlaps with described the first periphery wall all-roundly,
In the end of described the first periphery wall that overlaps and the end of described the second periphery wall, be respectively equipped with the rake that front attenuates.
6. rotary electrical unit according to claim 5 is characterized in that,
At the described rake of described the first periphery wall that overlaps and the described rake of described the second periphery wall, it is poor that its angle of inclination is arranged.
7. rotary electrical unit according to claim 5 is characterized in that,
Described the first periphery wall and described the second periphery wall are rectangle,
Bight in the inboard of described first periphery wall of described parts of bearings arranges the hole section that the end is arranged of depression along the direction away from described case member,
Bight in the inboard of described second periphery wall of described case member arranges the hole section that the end is arranged of depression along the direction away from described parts of bearings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011136822A JP5754803B2 (en) | 2011-06-20 | 2011-06-20 | Rotating electrical parts |
| JP136822/2011 | 2011-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662514U true CN202662514U (en) | 2013-01-09 |
Family
ID=47457400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220223116 Expired - Lifetime CN202662514U (en) | 2011-06-20 | 2012-05-17 | Rotating electric part |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5754803B2 (en) |
| CN (1) | CN202662514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618387A (en) * | 2013-12-10 | 2014-03-05 | 国家电网公司 | Intelligent device and method for sensing open and closed positions of high-voltage switch equipment |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101482744B1 (en) | 2013-11-21 | 2015-01-14 | 이수정 | Pull-to-turn rotary switch |
| KR101947756B1 (en) | 2017-12-08 | 2019-02-13 | (주)이오시스템 | Adapter for night vision |
| KR102068619B1 (en) * | 2018-09-14 | 2020-01-21 | 엘지전자 주식회사 | Rotary switch |
| KR102402527B1 (en) * | 2018-09-14 | 2022-05-27 | 엘지전자 주식회사 | Rotary switch |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0231963Y2 (en) * | 1986-10-15 | 1990-08-29 | ||
| JPH054251Y2 (en) * | 1987-11-30 | 1993-02-02 | ||
| JPH01135705U (en) * | 1988-03-10 | 1989-09-18 | ||
| JPH07283011A (en) * | 1994-04-08 | 1995-10-27 | Alps Electric Co Ltd | Rotary electronic component |
| JPH1012092A (en) * | 1996-06-17 | 1998-01-16 | Teikoku Tsushin Kogyo Co Ltd | Rotary switch |
| JP3690111B2 (en) * | 1998-05-12 | 2005-08-31 | 松下電器産業株式会社 | Rotating electronic components for in-vehicle use |
| JP4737947B2 (en) * | 2004-05-27 | 2011-08-03 | 株式会社東芝 | Battery pack |
| JP2006269841A (en) * | 2005-03-25 | 2006-10-05 | Matsushita Electric Ind Co Ltd | Solid-state imaging device |
| JP5463245B2 (en) * | 2010-08-31 | 2014-04-09 | 帝国通信工業株式会社 | Rotating electronic components |
-
2011
- 2011-06-20 JP JP2011136822A patent/JP5754803B2/en active Active
-
2012
- 2012-05-17 CN CN 201220223116 patent/CN202662514U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618387A (en) * | 2013-12-10 | 2014-03-05 | 国家电网公司 | Intelligent device and method for sensing open and closed positions of high-voltage switch equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5754803B2 (en) | 2015-07-29 |
| JP2013004879A (en) | 2013-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Alpine Alpine Company Address before: Tokyo, Japan Patentee before: Alps Electric Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
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| CX01 | Expiry of patent term |