CN203659973U - Contact structure for electricity transmission of power battery pack - Google Patents
Contact structure for electricity transmission of power battery pack Download PDFInfo
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- CN203659973U CN203659973U CN201320834028.6U CN201320834028U CN203659973U CN 203659973 U CN203659973 U CN 203659973U CN 201320834028 U CN201320834028 U CN 201320834028U CN 203659973 U CN203659973 U CN 203659973U
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- contact
- moving contact
- moving
- headstock
- static
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a contact structure for electricity transmission of a power battery pack. The contact structure is characterized in that a movable contact (5) in a movable contact component penetrates through a central hole of a movable head seat (4); a movable contact pressing head (5a) is integrally formed at the front end of the movable contact (5); the front end of the movable head seat (4) is contacted with the movable contact (5) by an embedded knuckle bearing (6) in a supporting manner; a static contact component is positioned at the front of the movable contact and consists of a static contact (8), a static head seat (9), a stopper (10) and a spring (11); and the rear end of the static contact (8) is provided with a static contact pressing head (8a) matched with the movable contact pressing head (5a). The contact structure disclosed by the utility model has the advantages that certain positive pressure on the contact end surfaces of the movable contact and the static contact can be guaranteed, and the movable contact has a self-aligning function and can adapt to the position of the static contact automatically, so that good contact between the movable contact and the static contact is guaranteed, not only the efficiency and the reliability of electricity transmission are improved, but also the arc discharge or conduction interruption due to instantaneous separation of the end surfaces of the movable contact and the static contact is effectively avoided.
Description
Technical field
The utility model belongs to vehicle technology field, and specifically, particularly the electrokinetic cell bag on pure electric vehicle conducts electricity and uses contact.
Background technology
At present, new-energy automobile particularly pure electric automobile is ripe gradually, enters test and demonstrating running stage.Pure electric sedan in use, must carry out electric energy and supplement, and at present pure electric sedan is carried out to electric energy and be supplemented with two kinds of patterns, the one, charge to electric automobile, required time is very long, generally needs several hours; Another kind of pattern is that electric automobile is changed to the electric power brick of changing electric automobile, first power brick complete electric energy consumption is changed fast, then is installed to rapidly on electric automobile being full of electric power brick, realizes fast repairing charging electric energy of electric automobile.The power brick of changing is charged at electrical changing station, and the power brick of substituting the bad for the good is prepared as next electric automobile and changes electricity.
Change while changing power brick on motor at passenger-car chassis, because moving contact is arranged in power brick, fixed contact is arranged on vehicle chassis, and there are various errors in different power brick, contact can only conduct electricity with end contact, contact area and contact shake all can affect the efficiency that conducts electricity, and loose contact burns out contact because producing the easy arcing of instantaneous separation between vehicle operating shake contact-making surface simultaneously.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of structure of contact terminal conducting electricity for electrokinetic cell bag that can effectively improve the reliability that conducts electricity.
The technical solution of the utility model is as follows: a kind of structure of contact terminal conducting electricity for electrokinetic cell bag, formed by moving contact component and static contact component, described moving contact component comprises seal head (3), moving headstock (4), moving contact (5) and oscillating bearing (6), described moving contact (5) is column structure, and pass in the centre bore of driven headstock (4), be formed with moving contact pressure head (5a) at the front end of moving contact (5), fixing seal head (3) between the rear end of described moving headstock (4) and moving contact (5), the front end of moving headstock (4) supports with moving contact (5) mutually by the oscillating bearing (6) of setting-in, described static contact component is positioned at the front of moving contact component, this static contact component is by fixed contact (8), quiet headstock (9), plug (10) and spring (11) composition, described fixed contact (8) is column structure, and be positioned at the dead ahead of moving contact (5), this fixed contact (8) passes from the centre bore of quiet headstock (9), the rear end of fixed contact (8) is formed with the fixed contact pressure head (8a) matching with moving contact pressure head (5a), the front end of fixed contact (8) is sealed by plug (10), spring (11) is set in described fixed contact (8), the front end of this spring (11) and plug (10) butt, the annular boss butt at the rear end of spring (11) and fixed contact (8) rear portion, this annular boss is spacing by the in-flanges of quiet headstock (9) rear port backward.
Adopt above technical scheme, moving contact component is arranged on power brick front end, is connected with power brick, moves with power brick, and the high pressure positive and negative electrode of its power brick and moving contact are connected; Static contact component is arranged on the circuit closer seat of vehicle chassis, and the high pressure positive and negative electrode on circuit closer seat is connected with electric automobile high-voltage circuit.
In the process of replacing power brick, moving contact component moves to static contact component direction, the moving contact pressure head of moving contact front end is pressed on the fixed contact pressure head of fixed contact rear end, moving contact continues mobile, and promote fixed contact and compress the spring in quiet headstock, after moving contact moves into place, spring is pressed together two contacts under the effect of resilience force, and guarantees that dynamic and static contact end face has certain normal pressure.An oscillating bearing is installed on moving contact, when power brick exists error, dynamic and static contact end face is not parallel and while affecting contact area, oscillating bearing can make moving contact automatic rotating one angle, to guarantee the parallel contact of counterface of moving contact pressure head and fixed contact pressure head, moving contact has from bit function like this, can automatically adapt to the position of fixed contact, guarantee that dynamic and static contact is good, thereby effectively improved the efficiency and the reliability that conduct electricity.
Offer annular groove (5b) at the front end face of described moving contact pressure head (5a), elastic conduction circle (7) is housed in this annular groove (5b), described elastic conduction circle (7) is spiral winding circulus, the spiral coil of elastic conduction circle (7) tilts with respect to axis, and the fraction of elastic conduction circle (7) exceeds the front end face of moving contact pressure head (5a).Elastic conduction circle is the helix tube of inclination certain angle, and protrude from moving contact pressure head end face, in the time that moving contact pressure head end face is pressed to fixed contact pressure head end face, in elastic conduction circle indentation annular groove, and under the effect of himself resilience force, elastic conduction circle and fixed contact pressure head end contact, thereby increase conductive area, and can lead to super-high-current, reduce dynamic and static contact resistance, further improve the efficiency and the reliability that conduct electricity; Meanwhile, in the time of vehicle shake, the instantaneous separation of two contacts, elastic conduction circle, under elastic force effect, still can keep dynamic and static contact end contact conduction, has effectively avoided because of the instantaneous separation arcing of dynamic and static contact end face or has interrupted conduction.
The cross section of described moving contact pressure head (5a) front end face annular groove (5b) is oval, is not only easy to processing and fabricating, and large outer little in annular groove, can prevent that elastic conduction circle from coming off.
Described elastic conduction circle (7) is made up of beryllium copper, has very high intensity, elasticity, hardness, fatigue strength, and anti-corrosion, wear-resisting, cold-resistant, high conduction, nonmagnetic, impact and do not produce spark.
Described seal head (3) is pre-small post-large cone rubber body, and the rear end face of sealing head (3) is glued with packing ring (2), and packing ring (2) is lock onto on moving contact (5) by nut (1).Above structure on the one hand assembling is simple, convenient; On the other hand, seal head, in swelling state, can not only play good sealing function, and has the property of allowing, and makes the moving contact can automatic rotating under the effect of oscillating bearing.
Described plug (10) is plug screw, and the rear portion of this plug screw embeds quiet headstock (9), both threaded engagement.The assembling of above structure plug is convenient, and is connected firmly with quiet headstock, can guarantee the reliability that spring is located.
As preferably, described moving contact (5) and fixed contact (8) are made by yellow gold.
Beneficial effect: the utility model can guarantee that dynamic and static contact end face has certain normal pressure, and moving contact has from bit function, can automatically adapt to the position of fixed contact, guarantee that dynamic and static contact is good, not only improve the efficiency and the reliability that conduct electricity, and effectively avoided because of the instantaneous separation arcing of dynamic and static contact end face or interrupted conduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of elastic conduction circle.
Fig. 3 is the initial condition figure of elastic conduction circle.
Fig. 4 is the compressive state figure of elastic conduction circle.
Fig. 5 is the schematic diagram of moving contact pressure head front end face annular groove.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, the utility model is made up of moving contact component and static contact component two large divisions.Described moving contact component has seal head 3, moving headstock 4, moving contact 5, oscillating bearing 6 and elastic conduction circle 7, and wherein, moving contact 5 is column structure, and is preferably made up of yellow gold.In the centre bore of the driven headstock 4 of moving contact 5, pass, the rear and front end of moving contact 5 is all in the outside of moving headstock 4, and moving headstock 4 is made up of insulating material.Between the rear end of described moving headstock 4 and moving contact 5, seal head 3 is set, sealing 3 is pre-small post-large cone rubber body, seal head 3 embeds in moving headstock 4 completely, the rear end face of seal head 3 is substantially concordant with the rear end face of moving headstock 4, and be glued with packing ring 2 at the rear end face of seal head 3, packing ring 2 is lock onto on moving contact 5 by nut 1, nut 1 and moving contact 5 threaded engagement.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the front end of moving headstock 4 supports with moving contact 5 mutually by oscillating bearing 6, oscillating bearing 6 is flush-mounted in and moves in headstock 4.Be formed with moving contact pressure head 5a at the front end of described moving contact 5, the front end face of this moving contact pressure head 5a offers annular groove 5b, and the cross section of this annular groove 5b is preferably ellipse.The processing mode of annular groove 5b is: first bore a hole d at moving contact pressure head 5a front end face, then forming tool is put in the d of hole, it is oval-shaped annular groove that the axis of moving contact 5 mills out cross section, large outer little in annular groove.In described annular groove 5b, elastic conduction circle 7 is housed, this elastic conduction circle 7 is spiral winding circulus, and is made up of beryllium copper.Described elastic conduction circle 7 penetrates in annular groove 5b from hole d, end to end, and hole d is avoided in joint.The spiral coil of elastic conduction circle 7 tilts with respect to the axis of elastic conduction circle 7, and the concrete angle of inclination is determined according to actual needs.The fraction of described elastic conduction circle 7 exceeds the front end face of moving contact pressure head 5a, and the concrete amount exceeding is also determined according to actual needs.
As shown in Figure 1, static contact component is positioned at the front of moving contact component, and this static contact component is made up of fixed contact 8, quiet headstock 9, plug 10 and spring 11.Wherein, fixed contact 8 is column structure, and is preferably made up of yellow gold.Described fixed contact 8 is positioned at the dead ahead of moving contact 5, and this fixed contact 8 passes from the centre bore of quiet headstock 9, and the rear end of fixed contact 8 is formed with the fixed contact pressure head 8a matching with moving contact pressure head 5a, and the front end of fixed contact 8 is sealed by plug 10.Described plug 10 is plug screw, and is set on fixed contact 8, and the rear portion of this plug screw embeds quiet headstock 9, both threaded engagement.In described fixed contact 8, be provided with spring 11, the front end of this spring 11 and plug 10 butts, the annular boss butt at the rear end of spring 11 and fixed contact 8 rear portions, this annular boss is spacing by the in-flanges of quiet headstock 9 rear ports backward.
Operation principle of the present utility model is as follows:
Moving contact component is arranged on power brick front end, is connected with power brick, moves with power brick; Static contact component is arranged on the circuit closer seat of vehicle chassis.In the process of replacing power brick, moving contact component moves to static contact component direction, the moving contact pressure head 5a of moving contact 5 front ends is pressed on the fixed contact pressure head 8a of fixed contact 8 rear ends, moving contact 5 continues mobile, and promote fixed contact 8 and compress the spring 11 in quiet headstock 9, after moving contact 5 moves into place, spring 11 is pressed together two contacts under the effect of resilience force, and guarantees that dynamic and static contact 5,8 contact end faces have certain normal pressure.When power brick exists error, dynamic and static contact end face is not parallel and while affecting contact area, oscillating bearing 6 can make moving contact 5 automatic rotating one angles, to guarantee the parallel contact of counterface of moving contact pressure head 5a and fixed contact pressure head 8a.
In the time that moving contact pressure head 5a end face is pressed to fixed contact pressure head 8a end face, in elastic conduction circle 7 indentation annular groove 5b, height h1 under elastic conduction circle 7 natures, after pressurized, circle tilts more, highly be reduced to h2, under the effect of himself resilience force, elastic conduction circle 7 and fixed contact pressure head 8a end contact, thereby increase conductive area, and can lead to super-high-current, reduce to move, fixed contact contact resistance, even vehicle shake, when the instantaneous separation of two contacts, elastic conduction circle 7 is under elastic force effect, still can keep moving, fixed contact end face contact conduction, effectively avoid because of moving, the instantaneous separation of fixed contact end face and arcing or interrupt conduction.
Claims (7)
1. the structure of contact terminal conducting electricity for electrokinetic cell bag, it is characterized in that: formed by moving contact component and static contact component, described moving contact component comprises seal head (3), moving headstock (4), moving contact (5) and oscillating bearing (6), described moving contact (5) is column structure, and pass in the centre bore of driven headstock (4), be formed with moving contact pressure head (5a) at the front end of moving contact (5), fixing seal head (3) between the rear end of described moving headstock (4) and moving contact (5), the front end of moving headstock (4) supports with moving contact (5) mutually by the oscillating bearing (6) of setting-in, described static contact component is positioned at the front of moving contact component, this static contact component is by fixed contact (8), quiet headstock (9), plug (10) and spring (11) composition, described fixed contact (8) is column structure, and be positioned at the dead ahead of moving contact (5), this fixed contact (8) passes from the centre bore of quiet headstock (9), the rear end of fixed contact (8) is formed with the fixed contact pressure head (8a) matching with moving contact pressure head (5a), the front end of fixed contact (8) is sealed by plug (10), spring (11) is set in described fixed contact (8), the front end of this spring (11) and plug (10) butt, the annular boss butt at the rear end of spring (11) and fixed contact (8) rear portion, this annular boss is spacing by the in-flanges of quiet headstock (9) rear port backward.
2. the structure of contact terminal conducting electricity for electrokinetic cell bag according to claim 1, it is characterized in that: offer annular groove (5b) at the front end face of described moving contact pressure head (5a), elastic conduction circle (7) is housed in this annular groove (5b), described elastic conduction circle (7) is spiral winding circulus, the spiral coil of elastic conduction circle (7) tilts with respect to axis, and the fraction of elastic conduction circle (7) exceeds the front end face of moving contact pressure head (5a).
3. the structure of contact terminal conducting electricity for electrokinetic cell bag according to claim 2, is characterized in that: the cross section of described moving contact pressure head (5a) front end face annular groove (5b) is for oval.
4. according to the structure of contact terminal conducting electricity for electrokinetic cell bag described in claim 2 or 3, it is characterized in that: described elastic conduction circle (7) is made up of beryllium copper.
5. the structure of contact terminal conducting electricity for electrokinetic cell bag according to claim 1, it is characterized in that: described seal head (3) is pre-small post-large cone rubber body, the rear end face of sealing head (3) is glued with packing ring (2), and packing ring (2) is lock onto on moving contact (5) by nut (1).
6. the structure of contact terminal conducting electricity for electrokinetic cell bag according to claim 1, is characterized in that: described plug (10) is plug screw, and the rear portion of this plug screw embeds quiet headstock (9), both threaded engagement.
7. the structure of contact terminal conducting electricity for electrokinetic cell bag according to claim 1, is characterized in that: described moving contact (5) and fixed contact (8) are made by yellow gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834028.6U CN203659973U (en) | 2013-12-17 | 2013-12-17 | Contact structure for electricity transmission of power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834028.6U CN203659973U (en) | 2013-12-17 | 2013-12-17 | Contact structure for electricity transmission of power battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659973U true CN203659973U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320834028.6U Expired - Fee Related CN203659973U (en) | 2013-12-17 | 2013-12-17 | Contact structure for electricity transmission of power battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700802A (en) * | 2013-12-17 | 2014-04-02 | 力帆实业(集团)股份有限公司 | Elastic contact on end face of powder battery of full electric vehicle |
| CN107462812A (en) * | 2017-09-05 | 2017-12-12 | 上海金尔电线电缆有限公司 | A kind of cable detection equipment and its cable installation method |
-
2013
- 2013-12-17 CN CN201320834028.6U patent/CN203659973U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700802A (en) * | 2013-12-17 | 2014-04-02 | 力帆实业(集团)股份有限公司 | Elastic contact on end face of powder battery of full electric vehicle |
| CN103700802B (en) * | 2013-12-17 | 2015-08-12 | 力帆实业(集团)股份有限公司 | Elastic contact on end face of powder battery of full electric vehicle |
| CN107462812A (en) * | 2017-09-05 | 2017-12-12 | 上海金尔电线电缆有限公司 | A kind of cable detection equipment and its cable installation method |
| CN107462812B (en) * | 2017-09-05 | 2019-09-24 | 上海金尔电线电缆有限公司 | A kind of cable detection equipment and its cable installation method |
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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: 20140618 Termination date: 20191217 |