CN106531498B - A kind of switch handle external member - Google Patents

A kind of switch handle external member Download PDF

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Publication number
CN106531498B
CN106531498B CN201611082522.6A CN201611082522A CN106531498B CN 106531498 B CN106531498 B CN 106531498B CN 201611082522 A CN201611082522 A CN 201611082522A CN 106531498 B CN106531498 B CN 106531498B
Authority
CN
China
Prior art keywords
handle
upper cover
interlude
locking
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201611082522.6A
Other languages
Chinese (zh)
Other versions
CN106531498A (en
Inventor
齐东才
朱红锋
周玮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Pinchuan New Energy Connection Device Co Ltd
Original Assignee
Shenzhen Pinchuan New Energy Connection Device Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Pinchuan New Energy Connection Device Co Ltd filed Critical Shenzhen Pinchuan New Energy Connection Device Co Ltd
Priority to CN201611082522.6A priority Critical patent/CN106531498B/en
Publication of CN106531498A publication Critical patent/CN106531498A/en
Application granted granted Critical
Publication of CN106531498B publication Critical patent/CN106531498B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/22Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The present invention proposes a kind of switch handle external member, including pedestal, upper cover and handle;The upper cover is in the open box body shape in bottom, and the upper cover includes: a top surface, two corresponding hinged faces, a locking face and a non-locking face;The hinged face, locking face and non-locking face constitute cyclic annular box side;The handle is in saddle-shape, and two suspension sections of saddle are hinged on two hinged faces;Switch closed condition, the interlude of handle and the locking face of upper cover are corresponding;Switch open condition, the interlude of handle and the top surface of upper cover are corresponding;Latching device is provided between the interlude of the handle and the locking face of upper cover.Switch handle external member of the invention can be realized the purpose of one-handed performance switch, and structure is simple, rapid operation.

Description

A kind of switch handle external member
Technical field
The present invention relates to service switch technical field, in particular to a kind of switch handle sets for Manual maintenance switch Part.
Background technique
Manual maintenance switch is a kind of common manual handling equipment in electric vehicle, is generally needed repairing in electric vehicle When, for making high-tension apparatus emergency power off.General Manual maintenance switch includes fuse, plug end and jack end, the fusing Device is connect with plug end, the jack end and external high pressure circuit connection, is inserted the plug end with described by manual operation Nose end connection is to access the fuse in external high pressure circuit, to play a protective role to high-tension circuit.
Manual maintenance switch separates upper cover and pedestal generally by handle to achieve the purpose that disconnect high-tension circuit.And The handle described in ordinary circumstance is to be mounted in upper cover and pedestal simultaneously, then passes through the latching device between handle and pedestal To realize the opening and closing of switch.But such structure operation trouble, need two hand cooperations that could complete operation.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of grip switches external member, can be realized singlehanded energy Operation switch Purpose, and structure is simple, rapid operation.
What the invention is realized by the following technical scheme:
The present invention proposes a kind of switch handle external member, including pedestal, upper cover and handle;
The upper cover is in the open box body shape in bottom,
The upper cover includes: a top surface, two corresponding hinged faces, a locking face and a non-locking face;
The hinged face, locking face and non-locking face constitute cyclic annular box side;
The handle is in saddle-shape, and two suspension sections of saddle are hinged on two hinged faces;
Switch closed condition, the interlude of handle and the locking face of upper cover are corresponding;
Switch open condition, the interlude of handle and the top surface of upper cover are corresponding;
Latching device is provided between the interlude of the handle and the locking face of upper cover.
Further, the latching device includes:
The tight lock part for being connected to the fastening part of the interlude of handle, being arranged on the locking face of upper cover.
Further, the tight lock part is in step-like.
Further, the fastening part is provided with the locking tongue being engaged with the step of tight lock part.
Further, the fastening part is additionally provided with the grab handle for raising locking tongue.
Further, the grab handle is along in arc-shaped.
Further, the step-like tight lock part includes track plane and step surface;The step surface is from the upper cover The interlude towards handle is locked to extend;The track plane is extended from from the ceiling for accumulation of step surface to handle locking opposite direction The locking face of upper cover.
Further, the track plane is in arc-shaped.
Further, when closing the switch, the interlude of the handle is slided along the track plane, until the interlude with Track plane interference fit locking, and the locking tongue is buckled in the step surface.
Further, when turning on the switch, grab handle is pulled, elastic deformation, the interlude of the handle occur for the handle It is separated with the track plane, the minimum point of the locking tongue is detached from the highest point of the step surface.
Beneficial effects of the present invention:
1. the interlude and upper cover of handle is arranged in by being installed on the upper cover handle in latching device by the present invention Locking face between it is easy to operate so that the grip switches can be opened once when in use;Fastening part and lock simultaneously The design in tight portion, so that one-handed performance may be implemented in grip switches.
2. the present invention passes through the design for facing the interference fit between the cambered surface of locking face directly of the interlude of handle, so that The handle is firm locking on upper lid in normal operating conditions, to prevent because of handle the reason of vehicle vibration The problem of mistake disconnects protector.Meanwhile the design of the arc-shaped of the locking face, so that in rotating handles, it can be light Push handle, the inside of the interlude will naturally be rotated along the locking face, thus realize the laborsaving of handle and The purpose of blind operation.
3. the present invention realizes the opening and fastening of locking tongue by regulations and parameters principle, held when passing through external force by what is stretched out outward When holding handle and pulling up, a certain amount of deformation can occur for the support portion, and according to regulations and parameters principle, the locking tongue can be with support portion Lower extreme point rotates down for fulcrum, is detached from the step surface to realize;Meanwhile when pulling the grab handle, the interlude Also tension can be generated, separates with the arc surface and is moved upwards along the arc surface on the inside of the interlude.Handle of the invention The structure of hand is simple, using laborsaving, conveniently.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of switch handle external member of the invention;
Fig. 2 is the schematic cross-sectional view of Fig. 1;
Fig. 3 is the stereoscopic schematic diagram of handle of the invention;
Fig. 4 is the front schematic view of Fig. 3;
Fig. 5 is the schematic cross-sectional view of Fig. 3;
Fig. 6 is the structural schematic diagram of the upper cover in Fig. 1.
Specific embodiment
In order to it is clearer, completely illustrate technical solution of the present invention, the present invention is made with reference to the accompanying drawing further Explanation.
Referring to FIG. 1, a specific embodiment of the invention proposes a kind of switch handle external member, including pedestal 3, upper cover 2 With handle 1;Wherein the upper cover 2 is covered on the pedestal 3, and the handle 1 is rotatably connected in upper cover 2.
Referring to FIG. 6, the upper cover 2 is in the open box body shape in bottom.Specifically, the upper cover 2 includes following five faces: The corresponding 25, locking faces 26 in hinged face in one top surface 24, two and a non-locking face 27;More specifically, described hinged Face 25, locking face 26 and non-locking face 27 constitute cyclic annular box side;Two hinged faces 25 are oppositely arranged, the locking face 26 with it is described Non-locking face 27 is oppositely arranged.
Referring to FIG. 3, the handle 1 is in saddle-shape, the saddle includes interlude 11 and is relatively arranged on the centre The suspension section 12 at 11 both ends of section.Two suspension sections 12 of the saddle are hinged on two hinged faces 25 of upper cover.Please refer to figure 1, switch closed condition, the interlude 11 of handle 1 and the locking face 26 of upper cover 2 are corresponding;Switch open condition, in handle 1 Between section 11 it is corresponding with the top surface 24 of upper cover 2.
In the present embodiment, referring to FIG. 3, being provided between the interlude 11 of the handle 1 and the locking face 26 of upper cover 2 Latching device 4.The latching device 4 is used for when closing the switch, and the interlude 11 of handle 1 is locked in upper cover 2.
Specifically, the latching device 4 includes: the fastening part 42 for being connected to 1 section of the centre of handle 1, upper cover 2 is arranged in Tight lock part 41 on locking face 26.
Referring to FIG. 4, the tight lock part 41 is in step-like.The step-like tight lock part 41 includes track plane 411 and platform Terrace 412;The step surface 412 extends from the locking face 26 of the upper cover 2 to the interlude 11 of handle 1;The track plane 411 The locking face 26 that opposite direction extends from upper cover 2 is locked to handle 1 from the ceiling for accumulation of step surface 412.
Specifically, the track plane 411 is in arc-shaped.
Referring to FIG. 4, the fastening part 42 is provided with the locking tongue 421 being engaged with the step of tight lock part 41.The fastening Portion 42 is additionally provided with the grab handle 422 for raising locking tongue 421.
Specifically, referring to FIG. 2, the position of the bottom of the interlude 11 in the outer part has extended downwardly a support portion 15, side is extended with a locking tongue 421 to the support portion 15 respectively inwards, and arc lower is extended with a grab handle laterally outwardly 422。
In the present embodiment, the grab handle 422 is along in arc-shaped.
Grip switches of the invention, when closing the switch, the interlude 11 of the handle 1 is slided along the track plane 411, Until the interlude 1 is locked with the interference fit of track plane 411, and the locking tongue 421 is buckled in the step surface 412.It opens When switch, grab handle 422 is pulled, elastic deformation, the interlude 11 of the handle 1 and the track plane 411 occur for the handle 1 Separation, the minimum point of the locking tongue 421 are detached from the highest point of the step surface 412.
It can be seen that the present invention by by latching device 4 be set to handle 1 interlude 11 and upper cover 2 locking face 26 it Between, so that the grip switches can be opened once when in use, it is easy to operate;Fastening part 42 and tight lock part 41 simultaneously Design, so that one-handed performance may be implemented in grip switches;Pass through the arc surface of the interlude 11 of handle 1 faced directly with locking face 26 Between interference fit design so that the handle 1 is firm locking in upper cover 2 in normal operating conditions, thus anti- Stop because of handle the problem of accidentally disconnecting protector the reason of vehicle vibration.Meanwhile the arc-shaped of the locking face 26 Design, so that can easily push handle 1, the inside of the interlude 11 will be naturally along described in rotating handles 1 Locking face 26 rotates, to realize the purpose of the laborsaving and blind operation of handle 1.
Switch handle external member of the invention pulls up grab handle 422 when opening handle 1, and the support portion 15 occurs Deformation, the locking tongue 421 rotate down as fulcrum using the lower extreme point of support portion 15 and are detached from the step surface 412, it is described in Between the inside of section 11 separate with the arc surface and moved upwards along the arc surface.
It can be seen that the present invention realizes the opening and fastening of locking tongue 421 by regulations and parameters principle.It will be past when passing through external force When the grab handle 422 of outer stretching pulls up, a certain amount of deformation can occur for the support portion 15, according to regulations and parameters principle, the lock Tight tongue 421 can be rotated down using the lower extreme point of support portion 15 as fulcrum, be detached from the step surface 412 to realize;Meanwhile it pulling When the grab handle 422, the interlude 11 can also generate tension, and 11 inside of interlude is separated with the arc surface and edge The arc surface moves upwards.The structure of handle 1 of the invention is simple, using laborsaving, conveniently.
Referring to FIG. 2, the grab handle 422 is held for manpower;The design of 422 arc of grab handle, so that manpower Force part, which increases, to be lengthened, to reach labour-saving effect.
Referring to FIG. 1, the switch handle external member further includes being fixedly arranged on swivel pin 21 above 2 parting surface of upper cover, fixed In the sliding block 31 on pedestal 3;The sliding block 31 is located at the underface of the swivel pin 21.
In the present embodiment, referring to FIG. 3, the handle 1 further includes be relatively arranged on 11 both ends of interlude two Block hangs section 12;The suspension section 12 is parallel with the side of the upper cover 2, and the suspension section 12 is swingably set on upper cover 2 Side;Referring to FIG. 1, one end of the suspension section 12 is equipped with a round hole 13 and a slideway 14;In each suspension section 12 Round hole 13 and the cooperation of slideway 14 one faying face of the upper cover 2 and pedestal 3 is separated, two pieces of suspension sections 12 can simultaneously by Upper cover 2 is separated with two opposite faying faces of pedestal 3.Therefore, the setting of two suspension sections 12 in the present embodiment, so that on Lid 2 and pedestal 3 are more easily, labour-saving separates.
Referring to FIG. 1, the swivel pin 21 is respectively arranged on the position of the longitudinal centre line of the two sides of the upper cover 2, when need When upper cover 2 and pedestal 3 are separated, i.e., when switch handle external member works, the round hole 13 in the suspension section 12 is set in institute It states on the swivel pin 21 of upper cover 2, the inner surface of the round hole 13 is bonded with the outer surface of the swivel pin 21, the round hole 13 can rotate around the swivel pin 21;On the connecting plate 11 for pushing the handle 1, the suspension section 12 simultaneously can be with described hinged Pin 21 is that fulcrum is rotated around the swivel pin 21, so that the round hole 13 can also be rotated around the swivel pin 21.
Referring to FIG. 4, the slideway 14 is slidably connected with the sliding block 31.The slideway 14 is the logical of a fan annular Slot, the fan annular be concave shape and including proximal end 141 and distal end 142;The round hole 13 is located at the proximal end of the fan annular The distance of 141 top, the center of circle to the fan annular of the round hole 13 is gradually increased from proximal end 141 to distal end 142;It is described Sliding block 31 is cylindrical, and the width of the slideway 14 is adapted with the diameter of the sliding block 31, under gravity, the cunning Block 31 can be resisted against always on the lower railway 143 of the slideway 14, therefore, during handle 1 is rotated up, the sliding block 31 can slide to distal end 142 from the proximal end 141 of the slideway 14 in the slideway 14 or slide to from the distal end 142 of the slideway 14 Proximal end 141.
In the present embodiment, referring to FIG. 1, in the initial state, the faying face of the upper cover 2 and pedestal 3 is closure, The handle 1 is to be in horizontal positioned, and the proximal end 141 of the slideway 14 is located just at the underface of the round hole 13, this When be also sliding block 31 and swivel pin 21 apart from it is nearest when.
And during handle 1 rotates, the sliding block 31 on pedestal 3 slides on slideway 14, as the sliding block 31 exists In the slideway 14 proximally during 141 slideways distal end 142, sliding block 31 on the pedestal 3 and the swivel pin in upper cover 2 21 have different distance states.
In the present embodiment, when needing being separated between upper cover 2 and pedestal 3, swing handle 1, so that described Swivel pin 21 of the hand 1 in the upper cover 2 rotates, and under the promotion of the lower railway 143 in the slideway 14, the sliding block 31 exists Distal end 142 is slided to by the proximal end 141 of slideway 14 in the slideway 14, on the swivel pin 21 and the pedestal 3 in the upper cover 2 The distance between sliding block 31 is increasingly remoter, so that the distance between the upper cover 2 and the pedestal 3 are more next, thus by institute Upper cover 2 is stated to separate with the faying face of the pedestal 3.
It can be seen that the present invention is by the matching design of round hole 13 and swivel pin 21 so that the swivel pin 21 at The movement fulcrum of entire handle 1, is made when with handle 1, upper cover 2 can be opened by not needing too big power using lever principle With pedestal 3 so that the switch handle external member of this case use it is laborsaving, conveniently;Meanwhile passing through the width of the slideway 14 and institute The compatible design of diameter of sliding block 31 is stated, so that the slideway 14 also can when the handle 1 is rotated around the swivel pin 21 It is rotated around the swivel pin 21, the lower railway 143 of the slideway 14 can push the sliding block 31 in the slideway 14 by sliding The proximal end 141 in road 14 slide to distal end 142, along with the round hole 13 the center of circle to the slideway 14 distance by proximal end 141 It is gradually increased to distal end 142, to guarantee the swivel pin 21 and the pedestal during handle 1 rotates, in the upper cover 2 The distance between sliding block 31 on 3 far comes remoter.
Referring to Fig.4, in the present embodiment, the inner wall of the round hole 13 is equipped with 3 pieces of fixture blocks 132, in other implementations In example, the quantity of the fixture block 132 can be 2,4 or others;The fixture block 132 is cyclic annular in fan, the fixture block 132 It is arranged concentrically with the round hole 13, the inner wall of the fixture block 132 from the round hole 13 is radially extended to the center of circle;Please refer to figure 3, the fixture block 132 extends to the position at middle part in the bottom end of depth direction from the round hole 13 of the round hole 13;? In the present embodiment, for convenience, one end of corresponding 12 inside of suspension section of round hole 13 as shown in Figure 4 is set as bottom End, and the one end for corresponding to 12 outside of suspension section is set as top.Referring to FIG. 1, the swivel pin 21 is equipped with card slot 212, work as handle When hand does not work, the fixture block 132 correspondence can be arranged on the card slot 212 of the swivel pin 21, then by the handle 1 Two pieces of suspension sections 12 to opposite direction by tight, so that handle 1, which also can be rotated arbitrarily, leads to upper cover 2 when preventing from not having to handle 1 It is separated with pedestal 3.
Referring to FIG. 4, being additionally provided with limiting slot 145 in the slideway 14;The limiting slot 145 is also in fan annular, the limit Position slot 145 is arranged concentrically with the slideway 14, and the limiting slot 145 is from the radial section 12 that hangs of the inner wall of the slideway 14 Extend in vivo;The limiting slot 145 extends inwardly in the outside of depth direction from the suspension section 12;The limiting slot 145 For preventing the sliding block 31 from skidding off from the slideway 14.Specifically, the position of the corresponding limiting slot 145, the sliding block 31 periphery is also extended with a circle limited block (not shown), described in the sliding block 31 when sliding on the slideway 14 Limited block backstop is in the limiting slot 145.
Referring to FIG. 5, being additionally provided with one outlet 144 at the distal end 142 of the slideway 14.The outlet 144 is square, institute Outlet 144 is stated to extend from the Inside To Outside of the suspension section 12.One end of the outlet 144 and the distal end of the slideway 14 142 communicate, and the other end of the outlet 144 leads to the end of the suspension section 12.The outlet 144 is filled for the sliding block 31 Enter the slideway 14 or is disassembled from the slideway 14.
Referring to FIG. 4, being additionally provided with port 18 in the suspension section 12, the port 18 is close to the round hole 13 and slideway 14 settings.Referring to FIG. 5, being equipped with hook 181 in the port 18, the hook 181 includes vertical plate 182 and hook plate 183, institute The bottom centre for stating vertical plate 183 from the port 18 upwardly extends, and the top for hooking plate 183 from the vertical plate 182 is prolonged The inside for extending to the suspension section 12 extends.Referring to FIG. 1, the upper cover 2 is equipped with one on the upper left side of the swivel pin 21 Protrusion 22, the hook plate 183 are used to be buckled on described raised 22 in the handle 1 rotation to guarantee that the handle 1 is located always It will not slide to come in vertical state.
In order to enable the handle 1 is light, the present embodiment uses following proposal:
Firstly, referring to FIG. 4, round hole 13, slideway 14 and hook 18 are not designed in 1 lower left of handle by this case Position has cut off an oblique angle 193, substantially reduces material cost in the case where not influencing the function of entire handle 1 in this way, The weight of handle 1 itself is also greatly reduced simultaneously.
Secondly, referring to FIG. 3, this case does not have to design the Position Design of round hole 13, slideway 14 and hook 18 on handle 1 The vertical through-hole 191 of multiple ordered arrangements, equally also significantly reduces 1 material cost of handle and reduces 1 weight of handle.
Finally, please referring to Fig. 4, Fig. 5, this case is similarly dug on the periphery of the round hole 13, slideway 14 and hook 18 Hopper 192 is gone out to go.
Certainly, the present invention can also have other numerous embodiments, be based on present embodiment, those skilled in the art Obtained other embodiments under the premise of not making any creative work belong to the range that the present invention is protected.

Claims (1)

1. a kind of switch handle external member, including pedestal, upper cover and handle;The upper cover is in the open box body shape in bottom, feature It is, the upper cover includes: a top surface, two corresponding hinged faces, a locking face and a non-locking face;It is described hinged Face, locking face and non-locking face constitute cyclic annular box side;The handle is in saddle-shape, and two suspension sections of saddle are hinged on two hinges In junction;Switch closed condition, the interlude of handle and the locking face of upper cover are corresponding;Switch open condition, the centre of handle Section is corresponding with the top surface of upper cover;Latching device is provided between the interlude of the handle and the locking face of upper cover;The lock The tight lock part that buckle mechanism includes: the fastening part for being connected to the interlude of handle, is arranged on the locking face of upper cover;The locking machine Structure is used for when closing the switch, and the interlude of handle is locked on upper lid;
For the tight lock part in step-like, the step-like tight lock part includes track plane and step surface;The step surface is described in The locking of upper cover extends towards the interlude of handle;The track plane locks opposite direction to handle from the ceiling for accumulation of step surface The locking face of upper cover is extended from, the track plane is in arc-shaped, and the fastening part is provided with the lock being engaged with the step of tight lock part Tight tongue, the fastening part are additionally provided with the grab handle for raising locking tongue, the position of the bottom of the interlude in the outer part to Under be extended with a support portion, the support portion is extended with a locking tongue inwardly respectively, and laterally outwardly arc lower extend There is a grab handle, the grab handle edge is in arc-shaped,
When closing the switch, the interlude of the handle is slided along the track plane, until the interlude and track plane interference It locks, and the locking tongue is buckled in the step surface, when turning on the switch, pulls grab handle, elastic shape occurs for the handle Become, the interlude of the handle is separated with the track plane, and the minimum point of the locking tongue is detached from the highest point of the step surface;
The position that round hole, slideway and hook are not designed in the handle lower left has cut off an oblique angle, does not have on handle Design the Position Design of round hole, the slideway and hook vertical through-hole of multiple ordered arrangements, the round hole, slideway and card The periphery of hook, which has similarly been dug out, removes hopper.
CN201611082522.6A 2016-11-30 2016-11-30 A kind of switch handle external member Expired - Fee Related CN106531498B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611082522.6A CN106531498B (en) 2016-11-30 2016-11-30 A kind of switch handle external member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611082522.6A CN106531498B (en) 2016-11-30 2016-11-30 A kind of switch handle external member

Publications (2)

Publication Number Publication Date
CN106531498A CN106531498A (en) 2017-03-22
CN106531498B true CN106531498B (en) 2019-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611082522.6A Expired - Fee Related CN106531498B (en) 2016-11-30 2016-11-30 A kind of switch handle external member

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100339549C (en) * 2004-02-20 2007-09-26 株式会社利富高 Cover opening and closing mechanism
CN202957164U (en) * 2012-10-13 2013-05-29 安费诺-泰姆斯(常州)通讯设备有限公司 Automobile power supply manual switch
CN203013567U (en) * 2012-12-28 2013-06-19 上海西艾爱电子有限公司 Automobile power supply manual maintenance rapid disconnector
CN204642547U (en) * 2015-03-02 2015-09-16 烟台驿邦国际贸易有限公司 A kind of split fix flip-shell containing box
CN205292302U (en) * 2015-11-22 2016-06-08 深圳巴斯巴科技发展有限公司 Novel switching device of electric vehicle battery box
CN105826145B (en) * 2016-05-16 2018-07-06 四川瑞可达连接系统有限公司 Manual maintenance switchs
CN206505847U (en) * 2016-11-30 2017-09-19 深圳市品川新能源连接器件有限公司 A kind of switch handle external member

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