CN102525680B - Small sized electric device - Google Patents
Small sized electric device Download PDFInfo
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- CN102525680B CN102525680B CN201110371622.1A CN201110371622A CN102525680B CN 102525680 B CN102525680 B CN 102525680B CN 201110371622 A CN201110371622 A CN 201110371622A CN 102525680 B CN102525680 B CN 102525680B
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Abstract
Provided is a small sized electric device, capable of inhibiting the over-high internal pressure of the body housing. An electric toothbrush comprises a body housing (20) composed of an intermediate housing (30) and a holding housing (60) in a mutual overlapping manner. A holding side sealing member (24) is arranged between part of the intermediate housing (30) and part of the holding housing (60) for sealing part of the intermediate housing (30) and part of the holding housing (60). When the internal pressure of the body housing (20) is higher than the external pressure of the body housing (20), the holding side sealing member (24) deforms according to the pressure difference of the internal and external pressure of the body housing (20), thereby forming a connecting path for mutually communicating the interior and the exterior of the body housing (20) and accordingly decreasing the internal pressure of the body housing (20).
Description
Technical field
The present invention relates to a kind of Minitype electric apparatus, possess body shell, body shell comprises the 1st housing and the 2nd housing that separately forms and mutually combine, and the inner surface of the outer surface of the 1st housing and the 2nd housing is opposed.
Background technology
For the device playing a role as Minitype electric apparatus, known have an electric toothbrush of recording in patent documentation 1 for example.
As shown in figure 12, in this electric toothbrush 100, be provided with the body shell 110 of controlling for user and be arranged on the brush portion 120 in this body shell 110.Body shell 110 consists of handle portion 111 and battery cover 112.In the inside of handle portion 111, take in motor and battery 130.Battery cover 112 is installed in the bottom of handle portion 111, and the end of battery 130 is covered.In the periphery of battery cover 112, be provided with the O shape ring 113 of sealing between handle portion 111 and battery cover 112.
Patent documentation 1: No. 9168554 communiques of Japanese kokai publication hei
Yet, in electric toothbrush 100 Minitype electric apparatus such as grade, because the temperature of body shell inside rises, air pressure declines or produce the reasons such as gas from battery, cause the pressure rise of body shell inside.In this case, when the excessive pressure of body shell inside rises, likely cause the part distortion of body shell inside etc.
For this point, the structure that the electric toothbrush 100 of patent documentation 1 adopts, owing to being sealed by O shape ring 113 between handle portion 111 and battery cover 112, so internal pressure is difficult to be eased.Therefore,, in the electric toothbrush 100 of patent documentation 1, the probability that above-mentioned excessive pressure rises is especially large.
Summary of the invention
The object of the invention is to, a kind of Minitype electric apparatus that can suppress the hypertonia of body shell inside is provided.
Record below for realizing the mode of above-mentioned purpose.
Minitype electric apparatus of the present invention, possesses body shell, this body shell comprises the 1st housing and the 2nd housing, described the 1st housing and described the 2nd housing combine with a part for described the 1st housing and the overlapped mode of a part of described the 2nd housing, described Minitype electric apparatus comprises the 1st elastomeric element, the 1st elastomeric element is arranged between a part for described the 1st housing and a part for described the 2nd housing, to between a part for described the 1st housing and a part for described the 2nd housing, seal, when the internal pressure of described body shell is greater than the external pressure of described body shell, described elastomeric element is out of shape according to the difference of the external pressure of the internal pressure of described body shell and described body shell, thereby form the access that the outside of the inside of described body shell and described body shell is interconnected.
According to the present invention, can provide a kind of Minitype electric apparatus that can suppress the hypertonia of body shell inside.
Accompanying drawing explanation
Fig. 1 is the figure illustrating as the Portable electric toothbrush with a lid of one embodiment of the present invention, (A) be the front view that its Facad structure is shown, (B) being the side view that its side structure is shown, is (C) top view of the planar structure seen of the arrow D1C from (A).
Fig. 2 is the figure that the electric toothbrush of one embodiment of the present invention is shown, and is (A) front view that is illustrated in the Facad structure while brush portion being installed in body shell, (B) is the front view that the Facad structure while unloading brush portion from body shell is shown.
Fig. 3 be illustrate one embodiment of the present invention Portable electric toothbrush with a lid, along the cutaway view of the cross section structure of the D3-D3 line of Fig. 1 (C).
Fig. 4 is the figure of handle portion side seal that the electric toothbrush of one embodiment of the present invention is shown, and (A) is the front view that its Facad structure is shown, and is (B) cutaway view illustrating along the cross section structure of the D4B-D4B line of (A).
Fig. 5 is the figure that the electric toothbrush of one embodiment of the present invention is shown, and is (A) and (B) cutaway view of amplification cross section structure that the region D5 of Fig. 3 is shown.
Fig. 6 is the figure that the electric toothbrush of one embodiment of the present invention is shown, (A) be the front view that the Facad structure of battery installation section is shown, (B) being the cutaway view illustrating along the cross section structure of the D6B-D6B line of (A), is (C) cutaway view of amplification cross section structure that the region D6C of (B) is shown.
Fig. 7 is the figure that the electric toothbrush of one embodiment of the present invention is shown, and is (A) axonometric chart of the stereochemical structure while watching negative electrode installation portion from face side, (B) is the axonometric chart that the stereochemical structure of negative electrode part is shown.
Fig. 8 is the figure of negative electrode installation portion that the electric toothbrush of one embodiment of the present invention is shown, and is the axonometric chart that the stereochemical structure while watching this installation portion from rear side is shown.
Fig. 9 is the figure of negative electrode installation portion that the electric toothbrush of one embodiment of the present invention is shown, (A) be the top view that its planar structure is shown, Fig. 9 (B) is the front view that its Facad structure is shown, Fig. 9 (C) is the upward view that its bottom surface structure is shown, and Fig. 9 (D) is the side view that its right flank structure is shown.
Figure 10 be illustrate one embodiment of the present invention electric toothbrush, along the cutaway view of the cross section structure of the D6B-D6B line of Fig. 6 (A).
Figure 11 is the figure illustrating as the Portable electric toothbrush with a lid of other embodiments of the present invention, is (A) and (B) cutaway view illustrating the amplification cross section structure of an example of the structure modify of the region D5 of Fig. 3.
Figure 12 is the axonometric chart illustrating as the stereochemical structure of the electric toothbrush of existing Minitype electric apparatus.
description of reference numerals
1 ... Portable electric toothbrush with a lid (Minitype electric apparatus), 2 ... electric toothbrush, 3 ... lid, 4 ... battery, 11 ... bristle, 20 ... body shell, 21 ... battery installation section, 22 ... accommodation space, 23 ... medial side sealing member (elastomeric element), 24 ... control side seal (elastomeric element), 24A ... foundation elasticity portion, 24B ... distortion elastic, 30 ... middle casing (the 1st housing), 33 ... motor, 37 ... opposed portion, 40 ... inner shell, 41 ... motor installation portion, 44 ... sealing member installation portion (elastomeric element installation portion), 50 ... shell, 60 ... control housing (the 2nd housing), 70 ... anode installation portion, 71 ... anode part, 71A ... anode contact site, 71B ... anode extension, 71C ... anode approaches portion, 72 ... installation portion sidewall, 73 ... installation portion perisporium, 75 ... parts groove, 80 ... negative electrode installation portion, 81 ... negative electrode part, 81T ... negative electrode protuberance, 81U ... front end, 82 ... the 1st cathode wall portion, 83 ... the 2nd cathode wall portion, 83A ... opposed faces, 87 ... protective bulkhead portion (guard block), 87B ... pawl (limiting unit (fixed part)).
The specific embodiment
With reference to Fig. 1～Figure 10, the Portable electric toothbrush 1 of one embodiment of the present invention is described.In the Portable electric toothbrush 1 of present embodiment, an example that Minitype electric apparatus of the present invention is embodied as to Portable electric toothbrush 1 with a lid (hereinafter referred to as " Portable electric toothbrush 1 ") is shown.
With reference to Fig. 1, the overall structure of Portable electric toothbrush 1 is described.
Portable electric toothbrush 1 possesses electric toothbrush 2 and lid 3.
Electric toothbrush 2 is by mutually combining the brush portion 10 separately forming and body shell 20 to form.Body shell 20 by using the middle casing 30 as the 1st housing separately forming and as the 2nd housing control housing 60 mutually combination form.Brush portion 10 is by mutually combining the bristle 11 separately forming and maintaining part 12 to form.
Lid 3 and body shell 20 are configured to, and in order to cover brush portion 10, user is installed to lid 3 in the body shell 20 of electric toothbrush 2, and can unload lid 3 from body shell 20.When lid 3 is installed in body shell 20, whole brush portion 10 is covered by lid 3.
On the roof of lid 3, be provided with inside and outside 2 lid hole 3A that are interconnected of lid 3.When lid 3 is installed in body shell 20, the moisture being attached in brush portion 10 is discharged to the outside of lid 3 by lid hole 3A.
At this, as follows each term of Portable electric toothbrush 1 is defined.
(a) direction of the central shaft 1C along Portable electric toothbrush 1 (controlling the central shaft of housing 60) is made as to " axially Z ".
(b) the direction front view at Portable electric toothbrush 1 (Fig. 1 (A)) is upper and that axial Z is vertical is made as " depth direction Y ".
(c) the direction side view at Portable electric toothbrush 1 (Fig. 1 (B)) is upper and that axial Z is vertical is made as " width X ".
(d) in each element of Portable electric toothbrush 1, the end that is positioned at brush portion 10 sides of Portable electric toothbrush 1 is called to " leading section ", the end of controlling housing 60 sides that is positioned at Portable electric toothbrush 1 is called to " bottom ".
(e), on axial Z, the bottom from Portable electric toothbrush 1 is called towards the direction of leading section " axle the place ahead to ".In addition, on axial Z, the direction by the leading section from Portable electric toothbrush 1 towards bottom is called " direction at the bottom of axle ".
(f), on depth direction Y, the root from bristle 11 is called towards the direction of front end " the place ahead to ".In addition, on depth direction Y, the front end from bristle 11 is called towards the direction of root at " rear to ".
(g), on width X, the direction by the right side from figure towards left side is called " left to ".In addition, on width X, the direction by the left side from figure towards right side is called " right ".
(h) on axial Z, by axle the place ahead of Portable electric toothbrush 1 to being called " front ".In addition, on axial Z, direction at the bottom of the axle of Portable electric toothbrush 1 is called to " bottom end side ".
(i) on depth direction Y, by the place ahead of Portable electric toothbrush 1 to being called " front side ".In addition, on depth direction Y, by the rear of Portable electric toothbrush 1 to being called " rear side ".
(j) outer surface of the face forward of each element of Portable electric toothbrush 1 is called to " front surface ", the rearward outer surface of face is called to " rear surface ".
(k), on Portable electric toothbrush 1, the center by width X and the cross section that determined by axial Z and depth direction Y are called to " virtual reference cross section ".In addition, cross section structure is as shown in Figure 3 equivalent to the structure in the virtual reference cross section of Portable electric toothbrush 1.
With reference to Fig. 2, the detailed structure of electric toothbrush 2 is described.
Controlling housing 60 is configured to when user is used electric toothbrush 2 and controls controlling housing 60.
Middle casing 30 is by mutually combining the shell 50 separately forming and inner shell 40 to form.In addition, as shown in Figure 3, even if inner shell 40 can not be exposed to outside under the state that has unloaded lid 3 from body shell 20 yet.
On shell 50, be provided with brush installation portion 51 and housing body 52.Brush installation portion 51 and housing body 52 adopt identical material to form as one as a part for shell 50.
On brush installation portion 51, be formed with for the pawl 51A of brush portion 10 is installed.Motor 33 has been taken in inside at brush installation portion 51, and this motor 33 is surrounded by roof 51B and perisporium 51C, and motor 33 plays a role as vibration source.
In housing body 52, be provided with: the switch cover 31 that the switch in body shell 20 32 (referring to Fig. 3) is covered; For the pawl 52A of lid 3 is installed; And for decorating the ornamental portion 53 of body shell 20.
Brush portion 10 is configured to user and brush portion 10 can be installed on middle casing 30 and from middle casing 30 and unloads brush portion 10.Front surface at the leading section of maintaining part 12 is provided with bristle 11.When brush portion 10 is installed on middle casing 30, whole brush installation portion 51 maintained portions 12 cover.
Referring to Fig. 3, the internal structure of electric toothbrush 2 is described.
Middle casing 30 is by mutually combining the inner shell 40 separately forming and shell 50 to form.As inner shell 40, shell 50, control the materials'use ABS resin of each parts of housing 60 and lid 3.
In inner shell 40, be provided with motor installation portion 41, substrate installation portion 42, installation portion fixed part 43 and anode installation portion 70.Motor installation portion 41, substrate installation portion 42, installation portion fixed part 43 and anode installation portion 70 adopt identical material to form as one as a part for inner shell 40.
Motor 33 is installed on motor installation portion 41.On the output shaft 33A of motor 33, eccentric hammer 34 is installed.The center of gravity of eccentric hammer 34 is eccentric with respect to output shaft 33A.Output shaft 33A and eccentric hammer 34 one rotations.
Between the rear surface of motor 33 and the inner surface of the brush installation portion 51 of shell 50, be provided with liner 35.The transfer of vibration efficiency that liner 35 improves from motor 33 to brush portion 10.The front surface of liner 35 contacts with the rear surface of motor 33.The rear surface of liner 35 contacts with the inner surface of brush installation portion 51.
In the rear surface of substrate installation portion 42, circuit board 36 is installed.Switch 32 is installed on circuit board 36.The leading section of switch 32 is forwards outstanding than the front surface of substrate installation portion 42 through substrate installation portion 42.
Negative electrode installation portion 80 is installed on installation portion fixed part 43.Negative electrode part 81 is installed on negative electrode installation portion 80.Anode part 71 is installed on anode installation portion 70.
On middle casing 30, be provided with for the battery installation section 21 of battery is installed.In battery installation section 21, be formed with the accommodation space 22 for setting battery.While battery being installed in battery installation section 21, negative electrode part 81 contacts with the negative electrode of battery.In addition, anode part 71 contacts with the anode of battery.
In inner shell 40, a part for the front of motor installation portion 41, substrate installation portion 42 and installation portion fixed part 43 is arranged on the inside of shell 50.
In inner shell 40, a part for installation portion fixed part 43 and anode installation portion 70 are arranged on the inside of controlling housing 60.Thus, in body shell 20, be formed with the outer surface of installation portion fixed part 43 and the outer surface of anode installation portion 70 and the mutual opposed opposed portion 37 of the inner surface of controlling housing 60.That is, in body shell 20, middle casing 30 and control housing 60 and combine in the overlapped mode of the part of middle casing 30 and a part of controlling housing 60.
In body shell 20, at the inner surface of the bottom of shell 50 be provided with the medial side sealing member 23 as the 2nd elastomeric element on depth direction Y and between the outer surface of the opposed inner shell 40 of this inner surface.In addition, control housing 60 leading section inner surface and on depth direction Y and between the outer surface of the opposed inner shell 40 of this inner surface, be provided with and control side seal 24 as the 1st elastomeric element.
Medial side sealing member 23 anti-sealings etc. are from the end face of the bottom side of shell 50 with on axial Z and be immersed in the inside of middle casing 30 between the outer surface of the opposed inner shell 40 of this end face.
Control side seal 24 anti-sealings etc. from control housing 60 leading section side end face and on axial Z and between the outer surface of the opposed inner shell 40 of this end face, be immersed in the inside of controlling housing 60.
The action of electric toothbrush 2 then, is described.
User is when 31 pairs of switches of switch cover 32 have carried out making operation, and the voltage of battery is applied on motor 33.Thus, the output shaft 33A of motor 33 and eccentric hammer 34 rotations.And, by the rotation of this eccentric hammer 34, motor 33 vibrations.The vibration of motor 33 is delivered to brush portion 10 via liner 35 and brush installation portion 51.By this structure, Portable electric toothbrush 1 makes bristle 11 vibrations, and the tooth of user is cleaned.
With reference to Fig. 4 and Fig. 5, structure and the function of controlling side seal 24 are described.
As shown in Figure 4, on side seal 24, be provided with the 24A of foundation elasticity portion and distortion elastic 24B controlling.The 24A of foundation elasticity portion forms ring-type.Distortion elastic 24B forms give prominence to outside radially from the outer peripheral face of the 24A of foundation elasticity portion flange shape.That is, control side seal 24 and form shape in T shape on the cross section that comprises central shaft 24C.
Controlling on the cross section that comprises central shaft 24C of side seal 24, the length of the Z vertically of the 24A of foundation elasticity portion is made as to " wall thickness L1 ", when the length of the Z vertically of distortion elastic 24B is made as to " wall thickness L2 ", wall thickness L2 is less than wall thickness L1.
As shown in Figure 5, the outer surface at inner shell 40 is formed with sealing member installation portion 44.Sealing member installation portion 44 forms groove, and this flute profile becomes ring-type, for the 24A of foundation elasticity portion that controls side seal 24 is installed.
The state of controlling that side seal 24 is embedded in the 24A of foundation elasticity portion that the state of sealing member installation portion 44 and distortion elastic 24B contacts by the inner surface with controlling housing 60 and having occurred towards axle the place ahead to be out of shape from direction at the bottom of axle is installed to inner shell 40.
As shown in Fig. 5 (A), when the external pressure of body shell 20 is during higher than the internal pressure of body shell 20, distortion elastic 24B is pressed against the inner surface of controlling housing 60 under the effect of the pressure differential between inside and outside.In addition, when the internal pressure of body shell 20 is identical with the size of the external pressure of body shell 20, at distortion elastic 24B, will return under the effect of power of shape of the state that is not applied to load, distortion elastic 24B is pressed against the inner surface of controlling housing 60.Thus, middle casing 30 and control between housing 60 sealed.In addition, the power that distortion elastic 24B will return to the shape of the state that is not applied to load also can produce while there is pressure differential between inside and outside.
As shown in Fig. 5 (B), when the internal pressure of body shell 20 is during higher than the external pressure of body shell 20, under the effect of the pressure differential between inside and outside, distortion elastic 24B distortion and leaving from controlling the inner surface of housing 60.Thus, in opposed portion 37, in body shell 20 and control between housing 60 and form gap, so internal pressure declines.; when the internal pressure of body shell 20 is greater than the external pressure of body shell 20; distortion elastic 24B is out of shape according to the difference of the external pressure of the internal pressure of body shell 20 and body shell 20, thereby forms the access that the outside of the inside of body shell 20 and body shell 20 is interconnected.
Referring to Fig. 6, the detailed structure of battery installation section 21 is described.
Battery installation section 21 by using the installation portion fixed part 43 of the part as inner shell 40 and anode installation portion 70 and negative electrode installation portion 80 mutually combination form.
On anode installation portion 70, be provided with installation portion sidewall 72 and installation portion perisporium 73.Installation portion sidewall 72 and installation portion perisporium 73 adopt identical material to form as one as a part for anode installation portion 70.
Installation portion sidewall 72 is opposed with the anode of battery.Installation portion perisporium 73 surrounds a part for battery periphery.In addition, on installation portion sidewall 72 and installation portion perisporium 73, be formed with for the parts groove 75 of anode part 71 is installed.
On anode part 71, be provided with anode contact site 71A and anode extension 71B.Anode contact site 71A and anode extension 71B adopt identical material to form as one as a part for anode part 71.
The anodic bonding of anode contact site 71A and battery, and extend along the bottom surface of battery.Anode extension 71B is connected with circuit board 36, and extends along the outer peripheral face of battery.That is to say, anode extension 71B and anode contact site 71A form continuously, and anode extension 71B extends to form towards negative electrode part 81.
On the mid portion of the axial Z of installation portion perisporium 73, the mat 74 being formed by elastomeric element is installed.In the inside of body shell 20, taken under the state of battery, mat 74 is sandwiched between battery and installation portion perisporium 73 and is compressed.
Battery installation section 21 is formed by the opposed faces 83A of the inner surface 72A of installation portion sidewall 72, the inner surface 73A of installation portion perisporium 73 and negative electrode installation portion 80, comprises the accommodation space 22 of setting battery.
With reference to Fig. 7～Figure 10, the detailed structure of negative electrode installation portion 80 is described.
As shown in Figure 7 and Figure 8, on negative electrode installation portion 80, be provided with the 1st the 82, the 2nd cathode wall portion 83 of cathode wall portion, extend wall portion 86, the 1st hook the 84, the 2nd hook 85, covering part 88 and protective bulkhead portion 87.The 1st the 82, the 2nd cathode wall portion 83 of cathode wall portion, prolongation wall portion 86, the 1st hook the 84, the 2nd hook 85, covering part 88 and protective bulkhead portion 87 adopt identical material to form as one as a part for negative electrode installation portion 80.In addition, the end face of direction side at the bottom of the axle of the 1st cathode wall portion 82 is called to " the 1st end face 82A ".In addition, axle the place ahead of the 1st cathode wall portion 82 is called to " the 2nd end face 82B " to the end face of side.In addition, the end face of direction side at the bottom of the axle of the 2nd cathode wall portion 83 is called to " opposed faces 83A ".
While negative electrode part 81 being installed in the 1st cathode wall portion 82, the 1st cathode wall portion 82 contacts with a part for negative electrode part 81.The 2nd cathode wall portion 83 is side-prominent to accommodation space 22 from the 1st end face 82A of the 1st cathode wall portion 82, and the periphery of a part for negative electrode part 81 is surrounded.
On negative electrode part 81, be provided with negative electrode rear portion 81A, the anterior 81B of negative electrode and bending section 81C.The anterior 81B of negative electrode rear portion 81A and negative electrode adopts identical material to form as one as a part for negative electrode part 81.
Negative electrode rear portion 81A forms the linearity that Z extends vertically, and is connected with circuit board 36.The anterior 81B of negative electrode is connected with the negative electrode of battery, is wound into coiled type.Bending section 81C is connected negative electrode rear portion 81A with the anterior 81B of negative electrode.
As shown in Figure 8 and Figure 9, on the 2nd end face 82B of the 1st cathode wall portion 82, be provided with a pair of the 1st hook the 84, the 2nd hook 85, extend wall portion 86 and covering part 88.In addition, at the outer peripheral face of the 1st cathode wall portion 82, be provided with the base end part of protective bulkhead portion 87.
Extending wall portion 86 fixes the leading section of negative electrode rear portion 81A.The leading section of negative electrode rear portion 81A hooks the pawl 86A that extends wall portion 86, thereby negative electrode part 81 is fixed on negative electrode installation portion 80.
The 1st hook 84 and the 2nd hook 85 are fitted on installation portion fixed part 43.The 1st hook 84 and the 2nd hook 85 are fitted to respectively on the corresponding site of installation portion fixed part 43, thereby negative electrode installation portion 80 is fixed on installation portion fixed part 43.
Covering part 88 is arranged between the anode extension 71B of bending section 81C and anode part 71.Covering part 88 covers the bending section 81C of negative electrode part 81 in the leading section side of the 1st cathode wall portion 82.Thus, can hinder anode extension 71B and bending section 81C is directly opposed.
With reference to Fig. 9 and Figure 10, the detailed structure of protective bulkhead portion 87 is described.In addition, in the following description, " datum level P " represents that the central shaft with electric toothbrush 2 is vertical and comprises the virtual plane of opposed faces 83A.
As shown in Figure 9, in protective bulkhead portion 87, be provided with the main body 87A of wall portion and a pair of pawl 87B.The main body 87A of wall portion from the outer peripheral face of the 2nd cathode wall portion 83 to axle at the bottom of direction outstanding, a part for anode part 71 is covered.Pawl 87B is as limiting unit and fixed part setting, and pawl 87B hooks the outer peripheral face of installation portion perisporium 73, and limiting protecting wall portion 87 moves with respect to installation portion perisporium 73.
As shown in figure 10, the fore-end (being called " negative electrode protuberance 81T " below) of the anterior 81B of negative electrode is side-prominent towards bottom than datum level P, is set in accommodation space 22.That is, the anterior 81B of negative electrode is divided into by the 81S of negative electrode basic courses department of the 2nd cathode wall portion 83 encirclements with towards the outstanding negative electrode protuberance 81T of accommodation space 22.
Protective bulkhead portion 87 forms from the 2nd cathode wall portion 83 and extends to than datum level P near accommodation space 22 sides, to the part corresponding with negative electrode protuberance 81T (being called " anode approaches the 71C of portion " below) among the anode extension 71B of anode part 71 covered.
At this, by from datum level P till the length of the front end 87U of protective bulkhead portion 87 is called " length L A ".In addition, by from datum level P till the length of the front end 81U of negative electrode protuberance 81T is called " length L B ".Length L A is the beeline that datum level P is connected with front end 87U.Length L B is the beeline that datum level P is connected with front end 81U.
The length L A of protective bulkhead portion 87 is larger than the length L B of negative electrode protuberance 81T.Therefore,, as shown in Fig. 6 (A), the main body 87A of wall portion that anode approaches the protected wall of the whole inner surface portion 87 of the 71C of portion covers.
Referring to Fig. 6, the installment state of protective bulkhead portion 87 is described.
On installation portion perisporium 73, between the part corresponding with mat 74 and negative electrode installation portion 80, be formed with peristome 73B.Peristome 73B is by a part of disjunction of the parts groove of installation portion perisporium 73 75, and the width of peristome 73B is larger than the width of parts groove 75.
In the part adjacent with peristome 73B of the outer surface of installation portion perisporium 73, be formed with stage portion 73C.Stage portion 73C forms the pawl 87B of protective bulkhead portion 87 is hooked.
Protective bulkhead portion 87 hooks through peristome 73B the state that the state of stage portion 73C of installation portion perisporium 73 and the main body 87A of wall portion and anode extension 71B be all accommodated in parts groove 75 with pawl 87B and is installed on installation portion perisporium 73.
The main body 87A of wall portion is to cover and the face of accommodation space 22 sides of the main body 87A of wall portion and the mode that the inner surface 73A of installation portion perisporium 73 forms a side face are accommodated in parts groove 75 whole of accommodation space 22 sides of anode extension 71B.
With reference to Fig. 9 (D), the structure of the 2nd cathode wall portion 83 is described.
On the inner surface 83B of the 2nd cathode wall portion 83, be provided with flexure plane 83C and opening surface 83D.Mode bending corresponding to coil shape of the flexure plane 83CYi Yu negative electrode 81S of basic courses department.Opening surface 83D is continuous from each end of flexure plane 83C.The radius of curvature of flexure plane 83C is less than the radius of battery.Therefore the part that, hinders the cathode side of battery enters into the space that the inner surface by the 2nd cathode wall portion 83 impales.
According to present embodiment, can access following effect.
(1), in electric toothbrush 2, at negative electrode protuberance 81T and anode, approach and between the 71C of portion, be provided with the protective bulkhead portion 87 that prevents that part from contacting with each other.According to this structure, when the anterior 81B of negative electrode is when anode approaches the 71C of portion distortion has occurred, can suppress negative electrode part 81 and anode part 71 is in contact with one another and short circuit.In addition, when the battery of having peeled off thin film is installed in battery installation section 21, anode and the negative electrode part 81 that can suppress the battery that exposes due to peeling off of thin film are in contact with one another and short circuit.
(2), in electric toothbrush 2, the pawl 87B of protective bulkhead portion 87 hooks the stage portion 73C of installation portion perisporium 73.According to this, form, when carrying out the installation or removal operation of battery, can hinder protective bulkhead portion 87 by pawl 87B and move with respect to installation portion perisporium 73.Therefore, for example,, while carrying out the installation or removal operation of battery, can suppress to float and cause 87 damages of protective bulkhead portion from installation portion perisporium 73 because of protective bulkhead portion 87.
(3), in electric toothbrush 2, the main body 87A of wall portion and the 2nd cathode wall portion 83 of protective bulkhead portion 87 form as one.In addition, the pawl 87B of protective bulkhead portion 87 and the main body 87A of wall portion form as one.According to this, form, can carry out in the lump the 1st hook 84 grades of negative electrode installation portion 80 to be embedded into the operation of installation portion fixed part 43 and the operation of pawl 87B being hooked to stage portion 73C, so can improve assembling operation efficiency.
(4), in electric toothbrush 2, the length L A of protective bulkhead portion 87 is larger than the length L B of negative electrode protuberance 81T.According to this, form, the main body 87A of wall portion that anode approaches the protected wall of the whole inner surface portion 87 of the 71C of portion covers, so can further positively suppress negative electrode part 81, contacts with anode part 71.
(5), in electric toothbrush 2, protective bulkhead portion 87 is incorporated in parts groove 75 together with approaching the 71C of portion with anode.According to this, form, protective bulkhead portion 87 is difficult to contact with battery, so can suppress protective bulkhead portion 87, follows battery installation exercise and breakage.
(6), in electric toothbrush 2, at the inner surface 83B of the 2nd cathode wall portion 83, be provided with flexure plane 83C.In addition, the radius of curvature of flexure plane 83C is set littlely than the radius of battery.According to this, form, the part that can hinder the cathode side of battery enters into the space that the inner surface by the 2nd cathode wall portion 83 impales, so when carrying out the installation exercise of battery, the anterior 81B of negative electrode is difficult for following with contacting of battery and deforms.Therefore, can suppress negative electrode part 81 and follow battery installation exercise and breakage.
(7), in electric toothbrush 2, at middle casing 30, be provided with and control side seal 24 with controlling in the opposed portion 37 of housing 60.According to this, form, when the internal pressure of body shell 20 is during higher than the external pressure of body shell 20, control side seal 24 distortion and leave from controlling the inner surface of housing 60.Thus, the internal pressure of body shell 20 declines, so can suppress internal pressure, becomes too high.
(8) in addition, when the external pressure of body shell 20 is during higher than the internal pressure of body shell 20, and when the internal pressure of body shell 20 is identical with external pressure, by controlling side seal 24 by middle casing 30 and opposed portion 37 sealings of controlling housing 60, so can suppress liquid, be immersed in the inside of controlling housing 60.
(9), on Portable electric toothbrush 1, as the parts setting with internal pressure adjustment function and sealing function, control side seal 24.According to this, form, than the structure of appending for reducing the check-valves of internal pressure etc., can reduce the volume of electric toothbrush 2.That is to say, can be when suppressing the excessive rising of internal pressure, by electric toothbrush 2 miniaturizations.
(10), in electric toothbrush 2, at inner shell 40, be provided with and control side seal 24 with controlling in the opposed opposed portion 37 of housing 60.According to this, form, the vibration of motor 33 is difficult to be delivered to controls housing 60, so can reduce to be given to the vibration of the hands of user.
(11), in electric toothbrush 2, control side seal 24 shape in T shape on the cross section that comprises central shaft 24C.According to this, form, and adopted the situation of O shape ring to compare as controlling side seal 24, seal member follows that compressed degree is little with controlling that housing 60 contact, so little at the stress of controlling generation on housing 60.Therefore, compare the situation that adopts O shape ring, can reduce to control the thickness of housing 60.In addition, follow the slimming of controlling housing 60, can make contributions to the miniaturization of electric toothbrush 2.
(12), even if the above-below direction of side seal 24 is controlled in conversion, also the seal 24 suitably can be installed in inner shell 40 in addition.Therefore, when controlling side seal 24, installation without the operation of confirming above-below direction, so assemble the working performance of electric toothbrush 2, increases.
(13) in electric toothbrush 2, in the outer surface of inner shell 40 and the opposed part of inner surface of shell 50, be independent of and control side seal 24, arrange in addition the medial side sealing member 23 of this part sealing.According to this, form, the vibration that is delivered to the bottom side of shell 50 from inner shell 40 reduces, so be delivered to the vibration of controlling housing 60, also reduces.Thus, the vibration of experiencing in the time of can reducing user use electric toothbrush 2.
(other embodiments)
In addition, embodiments of the present invention are not limited to the illustrated mode of above-mentioned each embodiment, for example, can implement after changing in the following manner.And each variation below not only can be applicable to above-mentioned each embodiment, different variation can also be combined to implement each other.
In the above-described embodiment, though as medial side sealing member 23, used O shape ring, be alternative in this, also can use the sealing member that shape is identical with controlling side seal 24.
In the above-described embodiment, though as controlling side seal 24, used the sealing member of cross sectional shape for T font, be alternative in this, for example also can use (A) or sealing member (B) below.
(A) comprising the sealing member (U-loop) that is U word shape on the cross section of central shaft.
(B) at the sealing member (V-ring) that comprises the shape that is in the shape of the letter V on the cross section of central shaft.
That is to say, as long as seal member has the distortion elastic that is embedded into the foundation elasticity portion of inner shell 40 and forms continuously with this foundation elasticity portion and be out of shape under the effect of the inside of body shell 20 and outside pressure differential, can use any seal member.
In the above-described embodiment, although installed 1 on the sealing member installation portion 44 of inner shell 40, control side seal 24, however in addition, also can control on housing 60 with the opposed part of the seal 24 on seal member is installed.
In this structure, controlling on the inner surface of housing 60, and be formed with elastomeric element installation portion in the opposed part of sealing member installation portion 44 of inner shell 40.The foundation elasticity portion of controlling side seal (the 2nd controls side seal) that the formation position of controlling the distortion elastic 24B of side seal 24 is changed to inner peripheral surface from outer peripheral face is embedded into this elastomeric element installation portion.
The 2nd to control the structure of side seal as follows,, omitted the distortion elastic 24B in side seal 24 that controls shown in Fig. 4 that is, is equivalent to be provided with the parts identical shaped with being out of shape elastic 24B from the inner peripheral surface of the 24A of foundation elasticity portion towards radially inner side is outstanding.In addition, the internal diameter of the 24A of foundation elasticity portion is set to the size that the periphery of controlling side seal 24 can be surrounded.
When controlling that side seal 24 is installed on inner shell 40 and the 2nd controlling side seal and be installed to while controlling on housing 60, the distortion elastic that the distortion elastic 24B and the 2nd that controls side seal 24 controls side seal is in contact with one another.Thus, each strain portion is retained the state towards the distortion of leading section side from bottom side.
According to said structure, when the internal pressure of body shell 20 is during higher than the external pressure of body shell 20, control side seal 24 and the 2nd and control the distortion elastic distortion of side seal and be separated from each other.Thus, the internal pressure of body shell 20 declines, so it is too high to suppress internal pressure.
In the above-described embodiment, to be out of shape state that elastic 24B contacts with the inner surface of controlling housing 60, will to control side seal 24 and be installed in body shell 20, yet also can change as follows the mounting means of controlling side seal 24.
As shown in figure 11, on position corresponding to the sealing member installation portion 44 with inner shell 40, be provided with the end face 61 of the front of controlling housing 60.End face 61 forms, on virtual reference cross section with respect to the inclined of controlling housing 60, and along with the central side from depth direction Y toward the outer side, from the bottom side of axial Z, towards leading section, roll tiltedly.That is the end face 61 of, controlling the front of housing 61 tilts towards the inner side of controlling housing 60 than the virtual reference cross section of extending along the vertical direction of the axis direction with controlling housing 60.The distortion elastic 24B that controls side seal 24 is configured to contact with end face 61 and along this end face 61.According to this, form, compare with above-mentioned embodiment, the deformation extent of distortion elastic 24B is little, and being out of shape elastic 24B, to revert to the power of original form little.Therefore,, than above-mentioned embodiment, make to be out of shape that elastic 24B starts distortion and diminish from controlling the inside of the body shell 20 that housing 60 leaves and outside pressure differential.Thus, even if in the internal pressure rising degree of body shell 20 hour, also can make to be out of shape elastic 24B by the rising of this pressure and be out of shape, thereby reduce internal pressure.
In the above-described embodiment, as protective bulkhead portion 87, be provided with the anode that comprises among anode extension 71B is approached to the parts of the part covering of the 71C of portion, yet also can change to the protective bulkhead portion of the shape that whole anode extension 71B is covered.
In the above-described embodiment, as the part of negative electrode installation portion 80, form protective bulkhead portion 87, yet also can use the protective bulkhead portion that negative electrode installation portion 80 forms that is independent of.
In the above-described embodiment, as the limiting unit moving for limiting protecting wall portion 87, be provided with pawl 87B, yet can be also any one of (A) below～(C) for example by the structure modify of limiting unit.In addition, in the variation shown in this, except pawl 87B, can also use in protective bulkhead portion 87.
(A) adopt the secure components such as screw that protective bulkhead portion 87 is fixed to the structure on installation portion perisporium 73.
(B) part for protective bulkhead portion 87 is embedded into the structure on installation portion perisporium 73.
(C) adopt binding agent etc. that protective bulkhead portion 87 is fixed to the structure on installation portion perisporium 73.
In the above-described embodiment, although negative electrode part 81 is set in the leading section side of battery installation section 21, in bottom side, be provided with anode part 71, yet also can convert the position relationship of negative electrode part 81 and anode part 71.The constituted mode of electric toothbrush 2 is in this case as follows, each element that adopts following manner to replace above-mentioned embodiment.That is to say, " anode installation portion 70 ", " anode part 71 ", " anode contact site 71A ", " anode extension 71B " and " anode approaches the 71C of portion " replace to respectively " negative electrode installation portion ", " negative electrode part ", " negative electrode contact site ", " negative electrode extension " and " negative electrode approaches portion ".In addition, " negative electrode installation portion 80 ", " negative electrode part 81 ", " negative electrode rear portion 81A ", " the anterior 81B of negative electrode ", " the 1st cathode wall portion 82 " and " the 2nd cathode wall portion 83 " replace with respectively " anode installation portion ", " anode part ", " anode rear portion ", " anode is anterior ", " the 2nd anode wall portion " and " the 1st anode wall portion ".Even if form like this, electric toothbrush 2 also can access effect and the effect identical with above-mentioned embodiment.
In the above-described embodiment, show and will in the Portable electric toothbrush as Minitype electric apparatus 1, apply an example of the present invention, yet also can be suitable for the present invention for fixing type electric toothbrush.In addition, as the Minitype electric apparatus beyond electric toothbrush, for example, in electric shaver, also can apply the present invention.
Claims (8)
1. a Minitype electric apparatus, possesses body shell, and this body shell comprises the 1st housing and the 2nd housing, and described the 1st housing and described the 2nd housing combine with a part for described the 1st housing and the overlapped mode of a part of described the 2nd housing, wherein,
Described Minitype electric apparatus comprises the 1st elastomeric element, and the 1st elastomeric element is arranged between a part for described the 1st housing and a part for described the 2nd housing, will between a part for described the 1st housing and a part for described the 2nd housing, seal,
When the internal pressure of described body shell is greater than the external pressure of described body shell, described the 1st elastomeric element is out of shape according to the difference of the external pressure of the internal pressure of described body shell and described body shell, thereby be formed for the access that the outside of the inside of described body shell and described body shell is interconnected
Described the 1st elastomeric element comprises foundation elasticity portion and distortion elastic, described foundation elasticity portion is installed among described the 1st housing and described the 2nd housing, described distortion elastic and described foundation elasticity portion form continuously, contact with another among described the 1st housing and described the 2nd housing
When the internal pressure of described body shell is greater than the external pressure of described body shell, described distortion elastic is out of shape according to the difference of the external pressure of the internal pressure of described body shell and described body shell, thereby be formed for the access that the outside of the inside of described body shell and described body shell is interconnected
An elastomeric element installation portion that comprises the described foundation elasticity of embedding portion among described the 1st housing and described the 2nd housing,
Described distortion elastic is to form to another the outstanding mode among described the 1st housing and described the 2nd housing from a part for described foundation elasticity portion.
2. Minitype electric apparatus according to claim 1,
Described the 1st elastomeric element forms ring-type, as seal member, plays a role,
The cross section of described the 1st elastomeric element is in T shape.
3. Minitype electric apparatus according to claim 2,
In the situation that a part for a part for described the 1st housing and described the 2nd housing is overlapped, described the 1st housing is positioned at inner side with respect to described the 2nd housing,
Described the 2nd housing comprises and inserts the peristome of described the 1st housing, the bottom that is arranged on the leading section on described peristome and is arranged at described peristome opposition side,
Than the virtual reference cross section of extending along the vertical direction of the axis direction with described the 2nd housing, the inner side to described the 2nd housing tilts the end face of the leading section of the described peristome side of described the 2nd housing,
Described distortion elastic forms continuously with the mode of the end contact with described peristome side and described foundation elasticity portion.
4. a Minitype electric apparatus, possesses body shell, and this body shell comprises the 1st housing and the 2nd housing, and described the 1st housing and described the 2nd housing combine with a part for described the 1st housing and the overlapped mode of a part of described the 2nd housing, wherein,
Described Minitype electric apparatus comprises the 1st elastomeric element, and the 1st elastomeric element is arranged between a part for described the 1st housing and a part for described the 2nd housing, will between a part for described the 1st housing and a part for described the 2nd housing, seal,
When the internal pressure of described body shell is greater than the external pressure of described body shell, described the 1st elastomeric element is out of shape according to the difference of the external pressure of the internal pressure of described body shell and described body shell, thereby be formed for the access that the outside of the inside of described body shell and described body shell is interconnected
Described Minitype electric apparatus also possesses electric toothbrush, and electric toothbrush comprises:
Brush portion, has by the bristle of vibration cleaning teeth; And
Motor, is arranged on the inside of described body shell, makes described bristle vibration,
In the situation that using described electric toothbrush, described the 2nd housing is controlled by user,
Described motor is installed on described the 1st housing of described body shell,
Described brush portion is installed on an end of described the 1st housing,
Another end of described the 1st housing is inserted into the inside of described the 2nd housing.
5. Minitype electric apparatus according to claim 4,
Described the 1st housing comprises inner shell and the shell combining with this inner shell,
Described shell comprises the brush installation portion that described brush portion is installed,
Described inner shell comprises the motor installation portion that described motor is installed,
The mode in described brush installation portion inner side is configured in respectively on described shell and described inner shell with described motor installation position for described brush installation portion and described motor installation portion.
6. Minitype electric apparatus according to claim 5,
On the end of the described brush portion side of described inner shell, be provided with described motor installation portion,
The end of a side contrary with described motor installation portion side of described inner shell is inserted into the inside of described the 2nd housing.
7. Minitype electric apparatus according to claim 6,
Described inner shell comprises battery installation section, and battery installation section is arranged on the opposition side of described motor installation portion, and battery is installed in battery installation section,
Described battery installation section is inserted into the inside of described the 2nd housing.
8. Minitype electric apparatus according to claim 5,
Possess the 2nd elastomeric element, the 2nd elastomeric element is arranged between described inner shell and described shell, will between described inner shell and described shell, seal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010258358A JP5592767B2 (en) | 2010-11-18 | 2010-11-18 | Small electric device |
| JP2010-258358 | 2010-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102525680A CN102525680A (en) | 2012-07-04 |
| CN102525680B true CN102525680B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110371622.1A Active CN102525680B (en) | 2010-11-18 | 2011-11-08 | Small sized electric device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5592767B2 (en) |
| CN (1) | CN102525680B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6226219B2 (en) * | 2012-12-07 | 2017-11-08 | パナソニックＩｐマネジメント株式会社 | Electric oral hygiene device set |
| JP6467745B2 (en) * | 2017-08-30 | 2019-02-13 | パナソニックＩｐマネジメント株式会社 | Electric oral hygiene device set |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4411054C1 (en) * | 1994-03-30 | 1995-08-17 | Braun Ag | Electrical tooth-brush with fluid sealing |
| CN1394158A (en) * | 2000-11-02 | 2003-01-29 | 皇家菲利浦电子有限公司 | Waterproof housing of apparatus |
| JP3134115U (en) * | 2007-05-25 | 2007-08-02 | 協和工業株式会社 | electric toothbrush |
| CN101207317A (en) * | 2006-12-22 | 2008-06-25 | 松下电工株式会社 | Actuator and electric toothbrush using the same |
| CN101234040A (en) * | 2007-01-31 | 2008-08-06 | 松下电工株式会社 | Oral care device |
| CN101496745A (en) * | 2008-01-28 | 2009-08-05 | 松下电工株式会社 | Toothbrush device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921574U (en) * | 1982-07-30 | 1984-02-09 | 松下電工株式会社 | rechargeable electrical equipment |
| JPH09168554A (en) * | 1995-12-19 | 1997-06-30 | Eiji Okada | Electric toothbrush |
-
2010
- 2010-11-18 JP JP2010258358A patent/JP5592767B2/en active Active
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2011
- 2011-11-08 CN CN201110371622.1A patent/CN102525680B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4411054C1 (en) * | 1994-03-30 | 1995-08-17 | Braun Ag | Electrical tooth-brush with fluid sealing |
| CN1394158A (en) * | 2000-11-02 | 2003-01-29 | 皇家菲利浦电子有限公司 | Waterproof housing of apparatus |
| CN101207317A (en) * | 2006-12-22 | 2008-06-25 | 松下电工株式会社 | Actuator and electric toothbrush using the same |
| CN101234040A (en) * | 2007-01-31 | 2008-08-06 | 松下电工株式会社 | Oral care device |
| JP3134115U (en) * | 2007-05-25 | 2007-08-02 | 協和工業株式会社 | electric toothbrush |
| CN101496745A (en) * | 2008-01-28 | 2009-08-05 | 松下电工株式会社 | Toothbrush device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102525680A (en) | 2012-07-04 |
| JP2012105888A (en) | 2012-06-07 |
| JP5592767B2 (en) | 2014-09-17 |
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