CN216958528U - Wire connecting device - Google Patents
Wire connecting device Download PDFInfo
- Publication number
- CN216958528U CN216958528U CN202122340442.9U CN202122340442U CN216958528U CN 216958528 U CN216958528 U CN 216958528U CN 202122340442 U CN202122340442 U CN 202122340442U CN 216958528 U CN216958528 U CN 216958528U
- Authority
- CN
- China
- Prior art keywords
- elastic ring
- connecting device
- fixed cover
- adjusting screw
- wire connecting
- 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.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 49
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 239000004411 aluminium Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000002788 crimping Methods 0.000 claims description 5
- BSPSZRDIBCCYNN-UHFFFAOYSA-N phosphanylidynetin Chemical compound [Sn]#P BSPSZRDIBCCYNN-UHFFFAOYSA-N 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses a wire connecting device which comprises a fixing sleeve connected with an aluminum cable and a connecting plate connected with a copper bar, wherein the connecting plate is fixedly connected with the fixing sleeve, an elastic ring used for tightly pressing and connecting the aluminum cable and the fixing sleeve is arranged in the fixing sleeve, and an adjusting screw used for adjusting the outward expansion degree of the elastic ring is arranged in the elastic ring. The tightness of the elastic ring is adjusted through rotation of the adjusting screw, so that the elastic ring can extrude the aluminum cable, the aluminum cable is tightly connected with the fixed sleeve, the connection tightness is ensured, and the situation that a connection point is broken and the like cannot be caused; the connecting plate and the copper bar can also be connected through bolts or welded.
Description
Technical Field
The utility model relates to the field of wire connecting structures, in particular to a wire connecting device.
Background
With the development of science and technology, electric vehicles have gradually entered the modern society. The power supply of the electric automobile transmitted from the power storage battery to the electric appliance is as high as 350A/450VDC, and a lead with a thicker wire diameter is required. In the traditional design, most of the copper wires are used for connection, the conductivity is good, but due to early or transitional development and use, the copper has resource shortage. In the prior art, a case of replacing a copper wire by an aluminum wire has been presented, but due to the excellent conductivity of copper, copper is still needed to be used for electrical connection in some places, and the use of copper-aluminum connection is considered to be a trend of future development.
At present, the most popular copper-aluminum connection is performed by adopting a copper-aluminum transition terminal or a copper-aluminum transition equipment wire clamp, the design adopts a friction welding mode or a fiber welding mode to weld two parts of copper and aluminum together, one end of aluminum is used for crimping an aluminum cable, and one end of copper or one surface of copper is used for connecting a copper cable or electrical equipment. The design has high requirements on the copper-aluminum welding process, and even if the copper-aluminum welding process is achieved, the welding point or the welding surface can crack, strain, crush and the like at any time in each link of installation, use, maintenance and the like, so that poor connection conditions are caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a wire rod connecting device realizes the connection of aluminium cable and copper bar through inseparable crimping, and connecting device is simple easy to carry out, and connects closely, and electric conductivity is good.
The technical scheme adopted by the utility model for solving the problems is as follows: the utility model provides a wire connecting device, includes the fixed cover of being connected with aluminium cable and is used for the connecting plate of being connected with the copper bar, connecting plate and fixed cover fixed connection, be equipped with the elastic ring that is used for making aluminium cable and the inseparable crimping of fixed cover in the fixed cover, be equipped with an adjusting screw who is used for adjusting the outside expansion degree of elastic ring in the elastic ring.
Compared with the prior art, the utility model has the advantages that: the tightness of the elastic ring is adjusted through the rotation of the adjusting screw, so that the elastic ring can extrude the aluminum cable, the aluminum cable is tightly connected with the fixed sleeve, the connection tightness is ensured, and the situation that a connection point is broken and the like cannot be caused; the connecting plate and the copper bar can also be connected through bolts or welded.
Preferably, the outer peripheral wall of the adjusting screw is tightly attached to the inner peripheral wall of the elastic ring, and the length of the outer diameter of the adjusting screw decreases progressively along the direction from the head of the screw to the tail of the screw. Like this, adjusting screw when precession elastic ring is intra-annular, can be progressively the improvement elastic ring and the pressure of aluminium cable, and then progressively reduce contact resistance, guarantee that the electric conductivity of connecting is good.
Preferably, the fixed sleeve is provided with a fixed plate, the fixed plate is provided with a nut, one end of the adjusting screw, far away from the head of the screw, is provided with a screw rod, and the screw rod is in threaded connection with the nut. Like this, through set up the screw rod on adjusting screw, the cooperation nut comes fixed adjusting screw, guarantees that adjusting screw can last stable going on to the pressure of elastic ring, and then makes aluminium cable and fixed cover zonulae occludens.
Preferably, an opening is formed in the elastic ring, and the opening penetrates through the whole elastic ring in the circumferential direction, so that the elastic ring is in an open ring shape. Like this, through setting up the opening, after adjusting screw progressively gets into the elastic ring, the elastic ring takes place deformation also can with adjusting screw zonulae occludens, skids when preventing adjusting screw is rotatory, and then guarantees aluminium cable and fixed cover zonulae occludens.
Preferably, the elastic ring is internally provided with a thread matched with the adjusting screw. Therefore, through the thread arrangement, the adjusting screw can easily rotate to enter the elastic ring and extrude the aluminum cable, so that the aluminum cable is tightly connected with the fixed sleeve.
Preferably, the connecting plate is provided with a through hole fixedly connected with the copper bar. Like this, through the through-hole, can use structures such as bolt with connecting plate and copper bar fixed connection, conveniently connect and guarantee the stability of connecting.
Preferably, the fixing sleeve is made of a tin-plated copper alloy material, and the elastic ring is made of a tin-phosphor bronze material. Therefore, the fixing sleeve made of the tin-plated copper alloy material has high tension, and can ensure that the fixing sleeve can be tightly connected with the aluminum cable; the elastic ring made of tin-phosphor bronze material has good contact performance, and ensures the connection of the fixing sleeve and the aluminum cable.
Preferably, the fixed sleeve is oval, and the elastic ring and the aluminum cable are arranged in the fixed sleeve side by side along the long diameter direction of the fixed sleeve. Like this, through oval structure, aluminium cable and elastic ring set up in its inside side by side simultaneously, guarantee the compactness of fixed cover inner structure.
Drawings
FIG. 1 is a schematic view of a connecting device for aluminum cables and copper bars according to the present invention;
FIG. 2 is a cross-sectional view of the structure of the aluminum cable and copper bar connecting device of the present invention with screws not screwed into the elastic ring;
fig. 3 is a sectional view of a screw screwing elastic ring structure of the aluminum cable and copper bar connecting device of the utility model.
The reference numbers in the figures illustrate: 1. aluminum cable 2, fixing sleeve 3, connecting plate 31, through hole 4, elastic ring 41, opening 5, adjusting screw 6, fixing plate 61 and nut.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, a detailed description of the present invention will be given below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present embodiment relates to a wire connecting device, which includes a fixing sleeve 2 connected to an aluminum cable 1 and a connecting plate 3 for connecting to a copper bar, wherein the connecting plate 3 is fixedly connected to the fixing sleeve 2.
Wherein, be equipped with in the fixed cover 2 and be used for making aluminium cable 1 and fixed cover 2 inseparable crimping's elastic ring 4, be equipped with an adjusting screw 5 that is used for adjusting elastic ring 4 outside expansion degree in the elastic ring 4. The fixing sleeve 2 provides a space for the aluminum cable 1, the elastic ring 4 and the screw to be sleeved together.
In the embodiment, the fixing sleeve 2 is made of tin-plated copper alloy material, has high tension, and can ensure that the fixing sleeve 2 is tightly connected with the aluminum cable 1; the elastic ring 4 is made of tin-phosphor bronze material, has good contact performance, ensures the connection of the fixed sleeve 2 and the aluminum cable 1, and meanwhile, the elastic ring 4 made of the material can be matched with various types of conductors and materials for use. The adjusting screw 5 is made of special stainless steel, and integral tight connection is guaranteed.
Furthermore, the fixing sleeve 2 is oval, and the elastic ring 4 and the aluminum cable 1 are arranged in the fixing sleeve 2 side by side along the long diameter direction of the fixing sleeve 2. Through the setting of oval structure, aluminium cable 1 and elastic ring 4 set up inside it side by side simultaneously, guarantee the compactness of fixed cover 2 inner structure.
In the embodiment, the outer circumferential wall of the adjusting screw 5 is tightly attached to the inner circumferential wall of the elastic ring 4, and the length of the outer diameter of the adjusting screw 5 decreases in the direction from the head of the screw to the tail of the screw. When the adjusting screw 5 is screwed into the elastic ring 4, the pressure of the elastic ring 4 and the aluminum cable 1 can be gradually improved through the structure with one large end and one small end, so that the contact resistance is gradually reduced, and the good conductivity of connection is ensured.
In the in-service use in-process, whole aluminium cable 1 and copper bar connecting device are when the erection joint, and the elastic ring 4 of tin phosphor bronze material produces lasting straight line pressure under adjusting screw 5's even rotary motion for aluminium cable 1 closely extrudees with fixed cover 2 of tin-plated copper alloy material, and in the electric contact theory, the relational expression of contact resistance and pressure is:
wherein R isk1Is the contact resistance, ρ is the resistivity of the contact material, ζ is the correction coefficient, H is the hardness of the contact material, and F is the positive pressure applied to the contact body. It can be seen that the contact resistance is inversely proportional to the pressure, and the larger the pressure is, the smaller the contact resistance is, and the smaller the heating value is, which is beneficial to the transmission of current energy. Meanwhile, the positive pressure is provided, so that the friction force between the aluminum cable 1 and the fixing sleeve 2 is increased, the pulling and inserting force of the aluminum cable 1 is favorably improved, and the structural strength is ensured.
In this embodiment, the fixing sleeve 2 is fixedly connected to a fixing plate 6 at a side edge thereof, and the fixing plate 6 is provided with a nut 61 for cooperating with the adjusting screw 5. Adjusting screw 5 is fixed through setting up nut 61, guarantees that adjusting screw 5 can be continuous stable going on to the pressure of elastic ring 4, and then makes aluminium cable 1 and fixed cover 2 zonulae occludens. In this process, the adjusting screw 5 is provided with a threaded spindle at the end remote from the head of the screw, which is in threaded connection with the nut 61. The adjusting screw 5 is fixed by providing a screw rod on the adjusting screw 5 in cooperation with the nut 61.
After the adjusting screw 5 is screwed down, the adjusting screw is fixed through the nut 61, the elastic ring 4 expands to extrude the aluminum cable 1 and compress the aluminum wire, and the purpose of copper-aluminum connection is achieved.
In order to further improve the connection strength of the fixing sleeve 2 and the connecting plate 3 and ensure that the connection between the fixing sleeve 2 and the connecting plate 3 cannot be broken, the fixing plate 6 can be fixedly connected with one end of the connecting plate 3 while being fixedly connected with the side edge of the fixing sleeve 2.
In this embodiment, the elastic ring 4 is provided with an opening 41, and the opening 41 penetrates the entire elastic ring 4 in the circumferential direction, so that the elastic ring 4 is in an open ring shape. Through setting up opening 41, after adjusting screw 5 progressively got into elastic ring 4, elastic ring 4 takes place deformation also can with adjusting screw 5 zonulae occludens, skids when preventing adjusting screw 5 is rotatory, and then guarantees aluminium cable 1 and fixed cover 2 zonulae occludens.
Wherein, the elastic ring 4 is internally provided with a thread matched with the adjusting screw 5. Through the thread setting, adjusting screw 5 can be comparatively easy rotatory get into in the elastic ring 4 to extrude aluminium cable 1, make aluminium cable 1 and fixed cover 2 zonulae occludens.
In actual use, the elastic ring 4 may not be internally threaded. At this time, the adjusting screw 5 may not be provided with a thread at the portion in pressing contact with the elastic ring 4, and the adjusting screw 5 is provided with a thread only at the screw tail portion and is connected with the nut 61 through the thread at the screw tail portion, so that the effect of pressing the elastic ring 4 can be achieved even after the adjusting screw 5 is gradually pushed.
In this embodiment, the connecting plate 3 is provided with a through hole 31 fixedly connected with the copper bar. Through-hole 31, can use structures such as bolt with connecting plate 3 and copper bar fixed connection, conveniently connect and guarantee the stability of connecting.
The utility model has the beneficial effects that: through the rotation of the adjusting screw 5, the elastic ring 4 can extrude the aluminum cable 1, so that the aluminum cable 1 is tightly connected with the fixed sleeve 2, the connection tightness is ensured, and the conditions of breaking of a connection point and the like can not be caused; the connecting plate 3 and the copper bar can also be connected through bolts or welded.
While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present utility model.
Claims (8)
1. A wire connecting device characterized in that: include fixed cover (2) of being connected with aluminium cable (1) and be used for connecting plate (3) of being connected with the copper bar, connecting plate (3) and fixed cover (2) fixed connection, be equipped with in fixed cover (2) and be used for making the elastic ring (4) of aluminium cable (1) and the inseparable crimping of fixed cover (2), be equipped with one in elastic ring (4) and be used for adjusting elastic ring (4) adjusting screw (5) of outside expansion degree.
2. A wire connecting device according to claim 1, wherein: the outer peripheral wall of adjusting screw (5) closely laminates with the internal perisporium of elastic ring (4), the outside diameter length of adjusting screw (5) diminishes progressively towards the direction of screw afterbody along the screw head.
3. A wire connecting device according to claim 2, wherein: be equipped with a fixed plate (6) on fixed cover (2), be equipped with a nut (61) on fixed plate (6), adjusting screw (5) are being kept away from screw head one end and are being equipped with a screw rod, screw rod and nut (61) threaded connection.
4. A wire connecting device according to claim 1, wherein: an opening (41) is formed in the elastic ring (4), and the opening (41) penetrates through the whole elastic ring (4) in the circumferential direction, so that the elastic ring (4) is in an open ring shape.
5. A wire connecting device according to claim 4, wherein: and threads matched with the adjusting screws (5) are arranged in the elastic ring (4).
6. A wire connecting device according to claim 1, wherein: and a through hole (31) fixedly connected with the copper bar is arranged on the connecting plate (3).
7. A wire connecting device according to claim 1, wherein: the fixed sleeve (2) is made of a tin-plated copper alloy material, and the elastic ring (4) is made of a tin-phosphor bronze material.
8. A wire connecting device according to claim 7, wherein: fixed cover (2) are oval, elastic ring (4) and aluminium cable (1) set up side by side in fixed cover (2) along fixed cover (2) major diameter direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122340442.9U CN216958528U (en) | 2021-09-26 | 2021-09-26 | Wire connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122340442.9U CN216958528U (en) | 2021-09-26 | 2021-09-26 | Wire connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216958528U true CN216958528U (en) | 2022-07-12 |
Family
ID=82302587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122340442.9U Active CN216958528U (en) | 2021-09-26 | 2021-09-26 | Wire connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216958528U (en) |
-
2021
- 2021-09-26 CN CN202122340442.9U patent/CN216958528U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315033 1st floor, building 12, No. 525, Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: Ningbo Fengmei New ENERGY AUTOMOTIVE Technology Co.,Ltd. Country or region after: China Address before: 315033 1st floor, building 12, No. 525, Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee before: Ningbo Fengmei New Energy Automobile Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |