CN202977742U - Wiring harness connection structure on central distribution box of automobile - Google Patents
Wiring harness connection structure on central distribution box of automobile Download PDFInfo
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- CN202977742U CN202977742U CN 201220565935 CN201220565935U CN202977742U CN 202977742 U CN202977742 U CN 202977742U CN 201220565935 CN201220565935 CN 201220565935 CN 201220565935 U CN201220565935 U CN 201220565935U CN 202977742 U CN202977742 U CN 202977742U
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- automobile
- wire harness
- distribution box
- copper sheet
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Abstract
The utility model provides a wiring harness connection structure on a central distribution box of an automobile, and belongs to the technical field of machinery, solving the technical problem in prior art that contact resistance in a connection position of an automobile wiring harness and the central distribution box increases and results in erosion under the condition of highly-frequent vibration of an engine and the like. The automobile circuit assembly comprises a central distribution box main body, an automobile power and a wiring harness. A copper sheet capable of being connected with the automobile power is disposed on the central distribution box main body. The wiring harness connection structure comprises a fastener and a wiring terminal disposed at one end of the wiring harness, and the wiring terminal is in demountable connection with the copper sheet by the fastener. The utility model can ensure that the contact resistance of the connection position where the automobile wiring harness is connected with the central distribution box remains constant to avoid erosion at the connection position in the condition of highly-frequent vibration of an engine, and can reduce the contact resistance in the connection position.
Description
Technical field
The utility model belongs to the distribution technique field, relates to the wire harness syndeton on a kind of automobile center distributing box.
Background technology
At present, electronic product kind on automobile is also in continuous increase, automotive wire bundle becomes increasingly complex, so, generally all has a central power distribution box on automobile, central power distribution box is the multifunction electronic control device, and it is almost concentrated fuse, circuit breaker, the relay of full car to be integrated, and is the control centre of car load electrical equipment, electronic circuit.Use central power distribution box, can realize centrally connected power supply, reduce connection circuit, simplify wire harness, reduce plug connector, save the space, alleviate complete vehicle quality etc.Central power distribution box is comprised of central distribution lid, seat and block terminal main body, mostly be arranged on the vehicle windscreen outer lower left corner, engine compartment cover below, or be arranged on and take advantage of in the guard shield interlayer of indoor driver's leg top.
The wire harness plug-in connecting component that docks with central power distribution box requires very strict, and to guarantee that contact resistance is almost nil, the reason that contact resistance produces has two: the first, and uneven due to contact-making surface, the actual contact-making surface of metal has reduced, like this, when electric current flows through conductor, make the electric current line that serious shrinkage phenomenon occur near contact-making surface, namely the effective conductive section of conductor dwindles greatly near contact-making surface, thereby causing the increase of resistance, this resistance is called contraction resistance.The second, contact-making surface may form rapidly the very poor oxide-film of one deck electric conductivity and be attached to the surface in air, resistance has been increased, and this part resistance is called film resistance.Therefore, contact resistance forms by shrinking resistance and film resistance.And contact is very important on the impact of contact resistance, and when contact reduced, effective conductive contact area of wire harness and central power distribution box junction will correspondingly reduce, and the contact resistance of this junction is increased.In addition, the contact form difference also can affect the size of contact resistance.Contact form mainly is divided into three kinds: some contact, line contact contacts with face, contact than hour; The contact resistance of some contact is lower; When contact was larger, the contact resistance of face contact was lower.
China patent CN201020196760.1 discloses a kind of Novel central power distribution box for the wire harness connection, comprise housing, laterally be provided with many group wire harness plug-in connecting component joints in the enclosure interior upper end, the bottom of many group wire harness plug-in connecting component joints is provided with the first relays placed up and down of arranging more and patches the place, be equipped with diode in a side that often ranked first the relay place of patching and patch the place, be provided with the insurance place that a row laterally places in the bottom that ranked first the relay place of patching, the lower, transverse at the insurance place is provided with one and ranked second relay and patch the place more.The utlity model has and reduce the wire harness loop, adopt connector that wire harness is connected, make the advantage of wire harness loop optimization.
present automobiles electrical equipment is many, power is large, in running car, engine can produce dither, wire harness plug-in connecting component on above-mentioned central power distribution box and the binding post of wire harness are pegged graft, this connected mode is stable not, easily make binding post loosening, the contact of plug connector and harness connecting terminal junction reduces, corresponding the reducing of effective conductive contact area between the two, thereby cause contact resistance to increase, the heat that the junction discharges will be more, if temperature rises to certain limit, the junction of automotive wire bundle binding post and central power distribution box can cause ablation because of overheated.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for existing technology, wire harness on a kind of automobile center distributing box syndeton is provided, and technical problem to be solved in the utility model is that the contact resistance of automotive wire bundle and central power distribution box junction can be remained unchanged under the condition of engine dither.
The purpose of this utility model can realize by following technical proposal: the wire harness syndeton on a kind of automobile center distributing box, the automobile circuit assembly comprises central distribution box main body, automobile power source, wire harness, it is characterized in that, be provided with the copper sheet that can be connected with described automobile power source on described central distribution box main body, described wire harness syndeton comprises securing member and the binding post that is arranged on wire harness one end, and described binding post removably connects by this securing member and described copper sheet.
harness connecting terminal in this device is connected with copper sheet by securing member, the fastness of this connected mode is good, binding post also is difficult for getting loose under the engine dither, the effective conductive contact area that guarantees binding post and copper sheet remains unchanged, even thereby the contact resistance of the junction of automotive wire bundle and central power distribution box also can be remained unchanged under the condition of engine dither, avoid because binding post is loosening, effective conductive contact area between binding post and copper sheet being reduced, thereby prevent from causing the junction of automotive wire bundle and central power distribution box to cross thermal ablation because contact resistance increases.
In wire harness syndeton on above-mentioned a kind of automobile center distributing box, offer an installing hole on described central distribution box main body, offer respectively through hole one, through hole two on described copper sheet and binding post, described securing member can be located in through hole one, through hole two and installing hole simultaneously.Mating reaction by securing member and through hole one, through hole two, installing hole, wire harness and copper sheet can be connected and fixed, and fastness is good, thereby avoids causing contact resistance to increase because binding post is loosening, prevents that the junction of automotive wire bundle and central power distribution box is because of overheated ablation.
In wire harness syndeton on above-mentioned a kind of automobile center distributing box, described securing member is a double-screw bolt, and an end of described double-screw bolt is provided with a nut that can coordinate with this double-screw bolt.Nut is screwed, can make copper sheet and binding post close contact, increase effective conductive contact area of copper sheet and binding post, and can regulate by the turn nut contact that increases between binding post and copper sheet, when contact surpasses certain value, can make the material production plastic deformation of binding post and copper sheet, the crushed crack that occurs of surface film oxide, increased contact-making surface between the two, contact resistance is descended rapidly, therefore, strengthen contact, contraction resistance and film resistance are all reduced, and total contact resistance will reduce.
In wire harness syndeton on above-mentioned a kind of automobile center distributing box, as another kind of scheme, described securing member is a screw.Screw is located in through hole one, through hole two and installing hole, the binding post of wire harness can be fixedly connected on central power distribution box.
In wire harness syndeton on above-mentioned a kind of automobile center distributing box, described binding post comprises wiring pawl and conducting strip, and described wiring pawl is mutually vertical with conducting strip, and described through hole two is opened on conducting strip.After being provided with the wiring pawl, wire harness can be plugged in this wiring pawl, and due to the compact conformation on central power distribution box, limited space, with wiring pawl and conducting strip vertical setting mutually, can facilitate the installation of binding post.
In wire harness syndeton on above-mentioned a kind of automobile center distributing box, described conducting strip is that face contacts with the contact form of copper sheet, and both contact-making surfaces are smooth plane.The contact-making surface of conducting strip and copper sheet is smooth, can effectively guarantee effective conductive contact area of conducting strip and copper sheet, reduces contraction resistance between the two, thereby reduces the contact resistance of this junction, avoids conducting strip and copper sheet because of overheated ablation.
Compared with prior art, the utlity model has following advantage:
1, the harness connecting terminal in this device is connected with copper sheet by securing member, the fastness of this connected mode is good, binding post is difficult for getting loose, and the contact resistance of automotive wire bundle and central power distribution box junction can be remained unchanged under the condition of engine dither.
2, in this device by the turn nut, can increase the contact between binding post and copper sheet, reduce contact resistance, prevent binding post and copper sheet ablation.
3, the contact-making surface of the conducting strip on this device middle connecting terminal and copper sheet is smooth, can guarantee effective conductive contact surfaces of conducting strip and copper sheet, reduces the contact resistance of this contact position, avoids conducting strip and copper sheet because of overheated ablation.
4, this device middle connecting terminal the wiring pawl mutually vertical with conducting strip, make this binding post easy for installation.
Description of drawings
Fig. 1 is the syndeton schematic diagram of wire harness and central power distribution box in embodiment.
Fig. 2 is the structural representation of embodiment middle connecting terminal.
Fig. 3 is the assembly structure schematic diagram of copper sheet and central power distribution box in embodiment.
In figure, 1, the central distribution box main body; 11, installing hole; 2, wire harness; 3, copper sheet; 31, through hole one; 4, double-screw bolt; 5, binding post; 51, through hole two; 52, wiring pawl; 53, conducting strip; 6, nut.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
as Fig. 1, Fig. 2, shown in Figure 3, this automobile circuit assembly comprises central distribution box main body 1, automobile power source, wire harness 2, offer an installing hole 11 on central distribution box main body 1, this installing hole 11 is provided with internal thread, be provided with the copper sheet 3 that can be connected with described automobile power source on central distribution box main body 1, offer through hole 1 on copper sheet 3, this wire harness syndeton comprises securing member and is arranged on the binding post 5 of wire harness 2 one ends, offer a through hole 2 51 on binding post 5, securing member can be located in through hole 1 simultaneously, in through hole 2 51 and installing hole 11, binding post 5 and copper sheet 3 are removably connected.Securing member in the present embodiment is a double-screw bolt 4, and an end of double-screw bolt 4 is provided with a nut 6 that can coordinate with this double-screw bolt 4, and the nut 6 in the present embodiment is preferably the M5 nut.As another kind of scheme, securing member also can be a screw.
As shown in Figure 1 and Figure 2, binding post 5 is formed by a sheet metal bending, this binding post 5 comprises wiring pawl 52 and conducting strip 53, wiring pawl 52 is mutually vertical with conducting strip 53, wire harness 2 can be plugged in wiring pawl 52, through hole 2 51 is opened on conducting strip 53, and conducting strip 53 is that face contacts with the way of contact between copper sheet 3, and contact-making surface between the two is smooth plane.
The operation principle of this device is as follows: offer installing hole 11 on this automobile center distributing box main body 1, offer through hole 1 on copper sheet 3, offer through hole 2 51 on binding post 5, double-screw bolt 4 is located in installing hole 11, through hole 1, through hole 2 51, then nut 6 is screwed, make conducting strip 53 and copper sheet 3 close contacts, both guaranteed effective conductive contact area between the two, increase again the contact between conducting strip 53 and copper sheet 3, reduced the contact resistance between binding post 5 and copper sheet 3.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. the wire harness syndeton on an automobile center distributing box, the automobile circuit assembly comprises central distribution box main body (1), automobile power source, wire harness (2), it is characterized in that, be provided with the copper sheet (3) that can be connected with described automobile power source on described central distribution box main body (1), described wire harness syndeton comprises securing member and the binding post (5) that is arranged on wire harness (2) one ends, and described binding post (5) removably connects by this securing member and described copper sheet (3).
2. the wire harness syndeton on a kind of automobile center distributing box according to claim 1, it is characterized in that, offer an installing hole (11) on described central distribution box main body (1), offer respectively through hole one (31), through hole two (51) on described copper sheet (3) and binding post (5), described securing member can be located in through hole one (31), through hole two (51) and installing hole (11) simultaneously.
3. the wire harness syndeton on a kind of automobile center distributing box according to claim 1 and 2, is characterized in that, described securing member is a double-screw bolt (4), and an end of described double-screw bolt (4) is provided with a nut (6) that can coordinate with this double-screw bolt (4).
4. the wire harness syndeton on a kind of automobile center distributing box according to claim 1 and 2, is characterized in that, described securing member is a screw.
5. the wire harness syndeton on a kind of automobile center distributing box according to claim 1 and 2, it is characterized in that, described binding post (5) comprises wiring pawl (52) and conducting strip (53), described wiring pawl (52) is mutually vertical with conducting strip (53), and described through hole two (51) is opened on conducting strip (53).
6. the wire harness syndeton on a kind of automobile center distributing box according to claim 5, is characterized in that, described conducting strip (53) is that face contacts with the contact form of copper sheet (3), and both contact-making surfaces are smooth plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565935 CN202977742U (en) | 2012-10-31 | 2012-10-31 | Wiring harness connection structure on central distribution box of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565935 CN202977742U (en) | 2012-10-31 | 2012-10-31 | Wiring harness connection structure on central distribution box of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977742U true CN202977742U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220565935 Expired - Fee Related CN202977742U (en) | 2012-10-31 | 2012-10-31 | Wiring harness connection structure on central distribution box of automobile |
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| Country | Link |
|---|---|
| CN (1) | CN202977742U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058533A (en) * | 2016-08-05 | 2016-10-26 | 北京联动天翼科技股份有限公司 | Heavy-current binding post for outgoing wire of electrical type casing |
| CN106099825A (en) * | 2015-04-29 | 2016-11-09 | 尼克桑斯公司 | For the method and apparatus installing cable termination |
| CN106788037A (en) * | 2017-01-10 | 2017-05-31 | 四川埃姆克伺服科技有限公司 | A kind of servo-drive power input interface structure and servo-driver |
-
2012
- 2012-10-31 CN CN 201220565935 patent/CN202977742U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099825A (en) * | 2015-04-29 | 2016-11-09 | 尼克桑斯公司 | For the method and apparatus installing cable termination |
| CN106058533A (en) * | 2016-08-05 | 2016-10-26 | 北京联动天翼科技股份有限公司 | Heavy-current binding post for outgoing wire of electrical type casing |
| CN106788037A (en) * | 2017-01-10 | 2017-05-31 | 四川埃姆克伺服科技有限公司 | A kind of servo-drive power input interface structure and servo-driver |
| CN106788037B (en) * | 2017-01-10 | 2023-07-25 | 四川埃姆克伺服科技有限公司 | Servo drive power input interface structure and servo driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201031 |