CN101859933B - Wiring mounting strucutre of electric tool - Google Patents
Wiring mounting strucutre of electric tool Download PDFInfo
- Publication number
- CN101859933B CN101859933B CN 201010112287 CN201010112287A CN101859933B CN 101859933 B CN101859933 B CN 101859933B CN 201010112287 CN201010112287 CN 201010112287 CN 201010112287 A CN201010112287 A CN 201010112287A CN 101859933 B CN101859933 B CN 101859933B
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- groove
- closed end
- terminal
- end terminal
- wide width
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Abstract
The present invention provides a kind of wiring mounting structure of electric tool, can satisfy the requirement of all users, and low in cost, and the influence to assembling operation is also smaller. Groove (9) are formed in the latter half (3) of the electric machine casing (1) of sander,It wherein can be inserted into simultaneously mounting terminal component,Wide width part (14) are formed on a part of groove (9),It can be connected to multiple conducting wires (7,8) base end part (32) of closed end terminal (30) is chimeric,In addition,Protrusion (15) are provided on the outside of the groove (9) in latter half (3),In the state of being entrenched in base end part (32) in wide width part (14),Protrusion (15) engages with the top end part (31) of closed end terminal (30),It falls off from groove (9) to limit the closed end terminal (30),Terminal assemblies can be substituted with closed end terminal (30),And the closed end terminal (30) is mounted in groove (9).
Description
Technical field
The present invention relates to a kind of in the housing of the electric tools such as sander, the structure that the distribution that has connected is installed.
Background technology
For the electric tool that uses alternating current (alternating current is called for short AC), the current supply line that is connected with external power source (insulated conductor) imports to enclosure interior, in enclosure interior, current supply line be connected with the wire of connecting motor coil after be installed in the enclosure interior of this electric tool.As the mounting structure of this distribution, people are known following two kinds of structures: utilizing terminal assemblies to connect the structure of two wires and be connected the closed end terminal shown in the patent documentation 2 to connect the structure (referring to Patent Document 3) that two wires also remain on this closed end terminal enclosure interior shown in the patent documentation 1.
Patent documentation 1: the open communique JP of Japanese patent of invention 2005-349508 number
Patent documentation 2: the open communique Unexamined Patent of Japanese patent of invention 11-224700 number
Patent documentation 3: open communique Unexamined Patent 11-77608 number (Fig. 3) of Japanese patent of invention because the specification of territory of use is different, when connecting insulated conductor, is restringing expediently, sometimes must the use side sub-component.And for the territory of use that does not have above-mentioned specification requirement, preferred closed end terminal with low cost then when connecting insulated conductor.; because the structure of housing mounting terminal assembly is different with the internal structure that the closed end terminal is installed; so; following two kinds of processing schemes are arranged in the prior art: the one, be formed with two installation portions distinguishing mounting terminal assembly and closed end terminal in enclosure interior, use respectively as required different installation portions; The 2nd, no matter the specification of territory of use how, only forms the installation portion of mounting terminal assembly in housing, all size all uses unified terminal assemblies.Yet, if two installation portions are set, not only can strengthen housing, and because the distribution pattern of terminal assemblies and closed end terminal is different, so can be further so that assembling operation becomes loaded down with trivial details.And when using unified terminal assemblies, because the unit price of its terminal assemblies is more expensive than the unit price of closed end terminal, so the problem that can cause cost to raise up.
Summary of the invention
In view of the above problems, the purpose of this invention is to provide a kind of wiring mounting structure, it can satisfy the demand of different territory of uses, and with low cost, and also less on the impact of assembling operation.
For achieving the above object, according to technical scheme 1 described wiring mounting structure of the present invention, be formed with groove in this housing of electric tool inside, the terminal assemblies that connects multiple conducting wires can insert and be installed in this groove, it is characterized in that, a part of position at described groove is formed with wide width part, it can be chimeric with the base end part of the closed end terminal that is connected multiple conducting wires, in addition, arranged outside at the described groove of described housing has projection, when described base end part is in the state that is entrenched in the described wide width part, described projection plays snap action to the top ends of described closed end terminal, comes off from groove thereby limit this closed end terminal, thus, when substituting described terminal assemblies with described closed end terminal, just this closed end terminal can be installed in the described groove.
In addition, be provided with locator protrusions at the inner surface that faces one another of described groove, this locator protrusions is chimeric with the groove that is arranged on the described terminal assemblies side, forms described wide width part take described locator protrusions as boundary.
[invention effect]
When adopting technical scheme 1 described structure, because described groove can be distinguished mounting terminal assembly and closed end terminal, thus can adapt with the different size of territory of use, and can distinguish use side sub-component and closed end terminal.Thus, for different territory of uses, this housing can be general, so can further reduce its cost.
In addition, because in said structure, not only can be on same position mounting terminal assembly or closed end terminal, and can make identical wire have equal length, therefore, this structure can be saved the space and be kept the miniaturization of electric tool etc., can realize again the distribution generalization, and then can successfully carry out assembling operation.
In addition, owing to having taked to utilize the locator protrusions that terminal assemblies is positioned to limit the Rational structure of closed end terminal movable, therefore, only need to arrange the wide width part and the projection that are used for installing the closed end terminal and get final product, follow the cost increase that changes shape and bring thereby can reduce.
Description of drawings
Fig. 1 is the stereogram that has used the electric machine casing of terminal assemblies.
Fig. 2 is the stereogram that has used the electric machine casing of terminal assemblies.
Fig. 3 is the schematic diagram that has used the electric machine casing of terminal assemblies.Wherein, (A) represents its front among Fig. 3, and (B) represents its side among Fig. 3.
Fig. 4 is the stereogram that has used the electric machine casing of closed end terminal.
Fig. 5 is the end view that has used the electric machine casing of closed end terminal.
Fig. 6 is the schematic diagram that has used the electric machine casing of closed end terminal.Wherein, (A) represents its front among Fig. 6, and (B) represents its side among Fig. 6.
[symbol description]
1: electric machine casing; 2: first half (electric machine casing); 3: latter half (electric machine casing); 5: insulated conductor; 7,8: wire; 9: groove; 10,11: wall; 12: base plate; 13: locator protrusions; 14: wide width part; 15: projection; 20: terminal assemblies; 21: insert port; 23: groove; 30: the closed end terminal; 31: top ends; 32: base end part.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1, Fig. 2 represent the electric machine casing 1 as the sander of an example of electric tool.Electric machine casing 1 is the molding synthetic resin processed goods, and it comprises: first half (with the downside of the sander among Fig. 1 as its place ahead) 2, and it is used for installing not shown motor; Latter half 3, it is arranged on the rear of first half 2 and is attached thereto, and it not only is used for keeping brush carrier (at brush motor the inside splendid attire carbon brush and keep the mechanical guide groove of this carbon brush position) 4, also insulated conductor 5 and switch 6 can be fixed thereon face.This latter half 3 also comprise not shown can be with its all cover cap that covers.In addition, in the place ahead of electric machine casing 1, be connected with not shown gear box, be provided with rotating mechanism in this gear box, the main shaft of this rotating mechanism highlights from gear box and intersects vertically with it, and the front end of main shaft can be installed discoid emery wheel.
Be formed with groove 9 in the latter half 3 of electric machine casing, it can install insertion terminal assemblies 20 wherein, and this terminal assemblies 20 connects wire 7 and wire 8, and wire 7 is wherein in the insulated conductor 5, and wire 8 is connected with the coil of motor.As shown in Figure 3, groove 9 comprises: a pair of wall 10 in front and back, 11, and it is according to the width of terminal assemblies 20, and is formed on take this width as the interval on the direction with the intersect vertical axis of electric machine casing 1; Base plate 12, it is used for connecting two marginal portions of two walls 10,11 inboard (center axis of electric machine casing 1), and wall 10,11 all opens wide on short transverse and left and right sides Width.In addition, the middle position on two walls 10,11 the lip-deep Width that faces one another is respectively arranged with along the outstanding locator protrusions 13 of short transverse.In addition, be positioned at close locator protrusions 13 left part of the wall 11 of rear side, formation consists of wide width part 14 along the thin-walled that extends away from the direction of wall 10 between this thin-walled and wall 10, this wide width part 14 is used for chimeric with the base end part 32 of aftermentioned closed end terminal 30 (Fig. 4).
And the leftward position of the wall that is positioned at the front side 10 in the latter half 3 of electric machine casing 1 is outstanding to be provided with projection 15, and the front end of this projection 15 is taper comparatively, is formed on the outside of the open section in groove 9 left sides, and it is given prominence in open section towards the rear.The size of space between projection 15 and the base plate 12 is slightly larger than the outside dimension of the top ends 31 of closed end terminal 30, and the size of space between the top of projection 15 and the wall 11 is less than the outside dimension of top ends 31, but larger than the outside dimension of wire 7.
Moreover the structure of terminal assemblies 20 is known configurations, is formed with two insert ports 21 in its left and right side, inserts respectively wire 7,8 from two insert ports 21.In the outstanding a pair of cylinder section 22 that is provided with of terminal assemblies 20 upper surfaces, by being screwed into a section that is arranged on 22 interior not shown screws, wire 7,8 is electrically connected.Side at terminal assemblies 20 fore-and-aft directions is formed with groove 23, and this groove 23 is corresponding and chimeric with it with the locator protrusions 13 on being arranged on groove 9.
As shown in Figure 1, in having the sander of said structure, when use side sub-component 20 connect wires 7,8 the time, with two wires 7,8 respectively from about two insert port 21 inserted terminals assemblies 20 and connect, the mode that matches with locator protrusions 13 with groove 23 again is with the outside insertion of terminal assemblies 20 from groove 9.So such as Fig. 2, shown in Figure 3, terminal assemblies 20 is through the guide effect of locator protrusions 13, can be inserted into the position that the base plate 12 with groove 9 connects, thereby it is installed in the groove 9.At this moment, in wide width part 14, although wall 11 can not come in contact with terminal assemblies 20, but the right side branch of terminal assemblies 20 and wall 10,11 butts, thereby limited the forwards, backwards movement of direction of terminal assemblies 20, simultaneously, because the effect of locator protrusions 13, this terminal assemblies 20 also limited the to the left and right movement of direction of terminal assemblies 20, so can be firmly held in the groove 9.Moreover, be positioned at the outside of groove 9 because of projection 15, so can not interfere terminal assemblies 20 is not inserted into operation in the groove 9, can by the gap of wire 7, so also can not producing with wire 7, projection 15 interfere owing to guaranteeing between projection 15 and the wall 11 to have.
On the other hand, using closed end terminal 30 to connect wire 7, also can utilize groove 9 at 8 o'clock.As shown in Figure 4, at first, for closed end terminal 30, its structure is following known configurations: the external diameter of its top ends 31 sealings and its base end part 32 is larger than the external diameter of top ends 31, it is the cap shape with 2 sections different diameter parts, by insert respectively the also operation of its top ends 31 of conquassation of wire 7,8 from base end part 32, just can encircle to rivet wire 7,8 by the not shown riveted joints that are arranged in the top ends 31, and can realize being electrically connected.
When use has said structure closed end terminal 30, to connect two wires 7,8 closed end terminal 30 and be placed on the left-hand portion of groove 9, its top ends 31 is inserted between base plate 12 and the projection 15 and with it laterally placed along groove 9, afterwards its base end part 32 is pressed onto in the wide width part 14.So such as Fig. 5, shown in Figure 6, the top ends 31 of closed end terminal 30 can remain between base plate 12 and the projection 15, simultaneously, its base end part 32 is installed between two walls 10,11 of wide width part 14.At this moment, because it is mobile laterally from groove 9 to limit top ends 31 by projection 15, can limits base end part 32 by projection 15 and locator protrusions 13 and move to the left and right directions of groove, so closed end terminal 30 can be firmly held in the groove 9.At this moment, two wires 7,8 can be pulled out laterally from the open section on the right side of groove 9.
As mentioned above, when the wiring mounting structure in the above-mentioned execution mode of employing, be formed with wide width part 14 at a part of groove 9, wherein, can insert in the groove 9 and mounting terminal assembly 20, and wide width part 14 can be connected multiple conducting wires 7, the base end part 32 of 8 closed end terminal 30 is chimeric, in addition, by the arranged outside at the groove 9 of electric machine casing 3 projection 15 is arranged, base end part 32 is entrenched under the state in the wide width part 14, this projection 15 engages with the top ends 31 of closed end terminal 30, thereby can limit this closed end terminal 30 comes off from groove 9, therefore can substitute terminal assemblies 20 with closed end terminal 30, and closed end terminal 30 is installed in the groove 9, so can distinguish mounting terminal assembly 20 and closed end terminal 30 in the groove 9.Therefore, said structure can adapt with user's different size, terminal assemblies 20 and closed end terminal 30 separately can be used.For all users, because this housing 1 can be general, so can further reduce its cost.
In addition, because in said structure, not only can be on same position mounting terminal assembly 20 and closed end terminal 30, and can make same wire 7,8 have equal length, therefore, this structure can be saved the space and be kept the miniaturization of electric tool etc., can realize again the distribution generalization, and then can successfully carry out assembling operation.
At this, particularly the inner surface that faces one another at groove 9 is provided with locator protrusions 13, and it is chimeric with the groove 23 on the side that is arranged on terminal assemblies 20, thereby the mode take locator protrusions 13 as its border forms wide width part 14.Owing to having taked to utilize the locator protrusions 13 that closed end terminal 30 is positioned to limit the Rational structure that this closed end terminal 30 moves, therefore, only need to arrange the wide width part 14 and the projection 15 that are used for installing closed end terminal 30 and get final product, follow the cost increase that changes shape and bring thereby can reduce.
In addition, in the above-described embodiment, form wide width part although make the wall attenuation of rear side, also can make the wall attenuation of front side and form wide width part, perhaps make the wall attenuation of both sides and form wide width part.In addition, the present invention is not limited to half mode that narrows down that makes groove, also can only will interfere the part of maximum gauge section of closed end terminal recessed, narrow down and form the wide width part of part.
In addition, projection also is not limited to setting position and the shape in the above-mentioned execution mode, can arrange from the wall of rear side is outstanding, gives prominence in the mode that faces one another from the wall of both sides that perhaps two projections etc. being set, but its position and shape appropriate change.
On the other hand, the shape of terminal assemblies or closed end terminal or size also are not limited to the situation described in the above-mentioned execution mode, as long as it can be installed in the groove, for the quantity of the wire that connects, because of the needs in the loop that consists of electric tool, even also applicable the present invention of the wire more than 3.
In addition, exemplified in the above-described embodiment the use side sub-component is connected the wire of the wire of insulated conductor and motor one side with the closed end terminal example, but be not that got rid of also can the use side sub-component and the situation of closed end terminal to other forms of distribution, other electric tools except sander are applicable the present invention also.Therefore, if adopt structure of the present invention, even when one of them the inner surface of splitting housing is formed with groove, terminal assemblies and closed end terminal are separately used.
Claims (1)
1. the wiring mounting structure of an electric tool is formed with groove in this housing of electric tool inside, and the terminal assemblies that connects multiple conducting wires can insert and be installed in this groove,
It is characterized in that, a part of position at described groove is formed with wide width part, it can be chimeric with the base end part of the closed end terminal that is connected multiple conducting wires, in addition, arranged outside at the described groove of described housing has projection, when described base end part is in the state that is entrenched in the described wide width part, described projection plays snap action to the top ends of described closed end terminal, thereby limiting this closed end terminal comes off from groove, thus, when substituting described terminal assemblies with described closed end terminal, just this closed end terminal can be installed in the described groove
The inner surface that faces one another at described groove is provided with locator protrusions, and this locator protrusions is chimeric with the groove that is arranged on the described terminal assemblies side, forms described wide width part take described locator protrusions as boundary.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-097373 | 2009-04-13 | ||
| JP2009097373A JP5280926B2 (en) | 2009-04-13 | 2009-04-13 | Wiring storage structure for electric tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101859933A CN101859933A (en) | 2010-10-13 |
| CN101859933B true CN101859933B (en) | 2013-01-02 |
Family
ID=42945677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010112287 Expired - Fee Related CN101859933B (en) | 2009-04-13 | 2010-02-08 | Wiring mounting strucutre of electric tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5280926B2 (en) |
| CN (1) | CN101859933B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586901A (en) * | 1994-12-07 | 1996-12-24 | Sumitomo Wiring Systems, Ltd. | Connector assembly with cooperating terminals and method for connecting same |
| CN101291018A (en) * | 2007-04-20 | 2008-10-22 | 昆山市大唐通讯设备有限公司 | Connector of electric cable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0344464Y2 (en) * | 1986-01-27 | 1991-09-18 | ||
| JPH08336778A (en) * | 1995-06-09 | 1996-12-24 | Hitachi Koki Co Ltd | Portable trimming machine |
-
2009
- 2009-04-13 JP JP2009097373A patent/JP5280926B2/en not_active Expired - Fee Related
-
2010
- 2010-02-08 CN CN 201010112287 patent/CN101859933B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586901A (en) * | 1994-12-07 | 1996-12-24 | Sumitomo Wiring Systems, Ltd. | Connector assembly with cooperating terminals and method for connecting same |
| CN101291018A (en) * | 2007-04-20 | 2008-10-22 | 昆山市大唐通讯设备有限公司 | Connector of electric cable |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-224700A 1999.08.17 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101859933A (en) | 2010-10-13 |
| JP2010247253A (en) | 2010-11-04 |
| JP5280926B2 (en) | 2013-09-04 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |