CN216390640U - Terminal wiring device, stator and aluminum wire motor - Google Patents
Terminal wiring device, stator and aluminum wire motor Download PDFInfo
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- CN216390640U CN216390640U CN202122154561.5U CN202122154561U CN216390640U CN 216390640 U CN216390640 U CN 216390640U CN 202122154561 U CN202122154561 U CN 202122154561U CN 216390640 U CN216390640 U CN 216390640U
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Abstract
The utility model relates to the technical field of motors and discloses a terminal wiring device, a stator and an aluminum wire motor. The terminal wiring device includes a copper wire harness; an aluminum wire harness having a pin supporting the aluminum wire harness; and the metal piece is connected with the copper wire harness and is wound with the aluminum wire harness, and the copper wire harness and the aluminum wire harness are welded through the metal piece. According to the terminal wiring device provided by the embodiment of the utility model, the aluminum wire harness is manufactured through the contact pin, and the aluminum wire harness is welded after being wound and coated with the metal piece, so that the welding can not only avoid the situation that the metal piece and the aluminum wire harness are not easy to weld in a free state, but also better isolate a depainted part of the aluminum wire harness to prevent oxidation, on one hand, the complex process of depainting, soaking and tin hanging is avoided, the hard isolation mode that the metal piece is wound and coated with the aluminum wire harness is directly used, and the process is simplified; on the other hand, a large amount of soldering flux is not needed for infiltration, and the effect of environmental protection is achieved.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a terminal wiring device, a stator and an aluminum wire motor.
Background
The structure is mostly ordinary embedded AC motor in aluminium wire motor on the market, and terminal termination includes copper harness and aluminium pencil, and the two can appear following problem when the lug connection: firstly, because the potential difference between aluminum and copper is large, the oxidation of aluminum is accelerated by the reaction of a primary battery at the copper-aluminum contact part, and poor contact can occur after a long time; secondly, compared with copper and aluminum, the chemical property of aluminum is more active, and the oxidation of aluminum can be accelerated during connection, so that the use is influenced; finally, when copper and aluminum are directly connected, the contact surfaces of the two metals are easy to form electrolyte under the action of moisture, carbon dioxide and other impurities in the air, so that the galvanic corrosion of the aluminum is generated by the formed primary battery taking the aluminum as a negative electrode and the copper as a positive electrode, and the contact resistance of the copper and aluminum connection part is increased.
In view of the above problems, the related art generally adopts a method of adding a transition metal between a copper wire harness and an aluminum wire harness to avoid the above galvanic corrosion, and mainly includes the following methods: the aluminum wire harness is immersed in the liquid metal, and then the aluminum wire harness is taken out for cooling treatment to form a metal layer coating the aluminum wire harness, so that galvanic corrosion is avoided.
However, the above method has the disadvantages that the aluminum wire harness is stripped and soaked before being soaked in the liquid metal, so that the process is complicated and takes long time, and the soldering flux is adopted during soaking, so that the soldering flux has great negative influence on environmental protection.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems that the copper-aluminum stranded wire connection process is complex and is not beneficial to environmental protection, the utility model provides the terminal wiring device, the stator and the aluminum wire motor which are simple to process and are beneficial to environmental protection.
In a first aspect, the present application provides a terminal wiring device, including:
a copper wire harness;
an aluminum wire harness having a pin supporting the aluminum wire harness; and the number of the first and second groups,
and the metal piece is wound around the aluminum wire harness, and the copper wire harness and the aluminum wire harness are welded through the metal piece.
In an embodiment of the present application, the metal member coats the aluminum wire harness.
In one embodiment of the present application, the aluminum wire harness is wrapped around the pin.
In one embodiment of the application, the contact pin comprises a plurality of contact pins, and the plurality of contact pins are arranged on the wire frame at intervals.
In one embodiment of the present application, the contact pin includes a steel main body and a tin-clad copper layer, the tin-clad copper cladding the steel main body, the aluminum wire harness twines the tin-clad copper layer.
In an embodiment of the application, the aluminum wire harness winding device further comprises a control system and a winding machine, wherein the control system is electrically connected with the winding machine so as to control the winding machine to wind and wrap the metal piece outside the aluminum wire harness.
In one embodiment of the present application, the metal member has a potential between a potential of the copper wire harness and a potential of the aluminum wire harness.
In an embodiment of the present application, the metal member includes: and (4) coating copper with tin.
In one embodiment of the present application, a heat shrinkable sleeve is sleeved on an outer side of a welding portion of the copper wire harness and the aluminum wire harness.
In an embodiment of the present application, the welding site is sealed inside the heat shrinkable sleeve by grouting.
In a second aspect, the present application provides a stator, including a stator core and the terminal wiring device of the first aspect, wherein the stator winding is installed in an insulating manner with the stator core through a bobbin.
In a third aspect, the present application provides an aluminum wire motor, including a rotor and the stator of the second aspect, wherein the rotor is rotatably connected to the stator.
Compared with the prior art, the technical scheme provided by the embodiment of the utility model has the following advantages:
according to the terminal wiring device provided by the embodiment of the utility model, the aluminum wire harness is manufactured through the contact pin, and the metal piece is wound on the outer side of the aluminum wire harness and then welded, so that the welding can not only avoid the situation that the metal piece and the aluminum wire harness are not easy to weld in a free state, but also better isolate a depainted part of the aluminum wire harness to prevent oxidation, on one hand, the complex process of depainting, soaking and tin hanging is avoided, the contact pin is directly used as a support through the aluminum wire harness, and the hard isolation mode that the metal piece is wound and coated on the aluminum wire harness is assisted, so that the processing steps are reduced, and the process is simplified; on the other hand, the aluminum wire harness is not required to be soaked by the soldering flux, so that the purposes of energy conservation and environmental protection are achieved.
The stator and the aluminum wire motor containing the terminal wiring device have the same technical advantages as the terminal wiring device, in addition, along with the continuous rising of material cost and the iteration requirement of technical updating, the application of the aluminum wire motor occupies the absolute advantage of the material cost under the condition of ensuring the performance, the labor cost is reduced to the minimum, the production cost is greatly saved, the product has market competitiveness, the application is realized, the attack in the aspect of breaking through the technical barrier, and the blank of the welding process of the aluminum wire motor is filled.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
In the drawings:
fig. 1 is a perspective view of a terminal wiring device provided in an embodiment of the present invention;
fig. 2 is a front view of a terminal wiring device provided in an embodiment of the present invention.
Reference numerals:
1. a metal member; 2. inserting a pin; 3. an aluminum wire harness; 4. a wire frame.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the utility model. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The structure is mostly ordinary embedded AC motor in aluminium wire motor on the market, and terminal termination includes copper harness and aluminium pencil, and the two can appear following problem when the lug connection: firstly, because the potential difference between aluminum and copper is large, the oxidation of aluminum is accelerated by the reaction of a primary battery at the copper-aluminum contact part, and poor contact can occur after a long time; secondly, compared with copper and aluminum, the chemical property of aluminum is more active, and the oxidation of aluminum can be accelerated during connection, so that the use is influenced; finally, when copper and aluminum are directly connected, the contact surfaces of the two metals are easy to form electrolyte under the action of moisture, carbon dioxide and other impurities in the air, so that the galvanic corrosion of the aluminum is generated by the formed primary battery taking the aluminum as a negative electrode and the copper as a positive electrode, and the contact resistance of the copper and aluminum connection part is increased.
In view of the above problems, in the related art, the aluminum wire harness and the copper wire harness are welded by immersing the aluminum wire harness in liquid metal, then taking out the aluminum wire harness to form a metal layer covering the aluminum wire harness, and then connecting the aluminum wire harness and the copper terminal through the metal layer to weld the joint, thereby avoiding galvanic corrosion.
However, the following drawbacks exist in the related art: firstly, the process of the method is complex, the time consumption is long, and the method is almost manual operation; secondly, the negative influence on environmental protection is great because the soldering flux is used for soaking after paint is removed; finally, the material cost is high, and the cost of implementing the process is greatly increased by the large amount of tin liquid filled in the copper terminal, which is greatly disadvantageous in terms of cost saving. In order to solve the above problems, the present application provides a terminal wiring device, a stator, and an aluminum wire motor.
Embodiment I regarding the terminal wiring device
Fig. 1 is a perspective view of a terminal wiring device provided in an embodiment of the present invention, and fig. 2 is a front view of the terminal wiring device provided in an embodiment of the present invention. Referring to fig. 1 to 2, a terminal wiring device according to an embodiment of the present invention includes: a copper wire harness; an aluminum wire harness 3 having a pin 2 supporting the aluminum wire harness 3; and a metal member 1, wherein the metal member 1 is wound around the aluminum wire harness 3, and the copper wire harness and the aluminum wire harness 3 are welded through the metal member 1.
According to the terminal wiring device provided by the embodiment of the utility model, the aluminum wire harness 3 is manufactured through the contact pin 2, and the metal piece 1 is wound and coated on the outer side of the aluminum wire harness 3 and then welded, so that the welding can not only avoid the situation that the copper wire harness and the aluminum wire harness 3 are not easily welded in a free state, but also better isolate the depainted part of the aluminum wire harness 3 to prevent oxidation, on one hand, the complex process of depainting, soaking and tin hanging is avoided, the contact pin 2 is directly used as a support through the aluminum wire harness 3, and the hard isolation mode that the metal piece 1 is wound and coated on the aluminum wire harness 3 is assisted, so that the processing steps are reduced, and the process is simplified; on the other hand, the aluminum wire harness 3 does not need to be soaked by the soldering flux, so that the purposes of energy conservation and environmental protection are achieved.
In addition, in the related art, the soldering flux is adopted in the soaking process, so that the soldering flux can help and promote the soldering process in the soldering process, and meanwhile, the soldering flux has a protective effect and chemical substances for preventing oxidation reaction.
In order to better prevent the aluminum wire harness 3 from being oxidized by air, the metal piece 1 coats the aluminum wire harness 3 and then is welded, so that the situation that the copper wire harness and the aluminum wire harness 3 are not easy to weld in a free state can be avoided, and the depainted part of the aluminum wire harness 3 can be better isolated to prevent oxidation.
As for the aluminum wire harness 3, the aluminum wire harness 3 is wound around the pin 2. Specifically, the contact pin 2 comprises a plurality of contact pins, and the plurality of contact pins 2 are mounted on the wire frame 4 at intervals. A plurality of contact pins 2 are installed on line frame 4 to 3 winding contact pins 2 of aluminium pencil to make 3 of aluminium pencil have the strong point, be convenient for from outside winding aluminium pencil 3, wherein, line frame 4 adopts insulating material to make, in order to separate stator core and line frame 4, makes the two not switch on.
In order to realize automatic processing, the aluminum wire harness winding machine further comprises a control system and a winding machine, wherein the control system is electrically connected with the winding machine so as to control the winding machine to wind and wrap the metal piece 1 outside the aluminum wire harness 3.
In some embodiments, the copper wire harness wraps the metal piece 1 in a winding manner, so that the copper wire harness is better attached to the metal piece 1 to ensure sufficient contact, and the welded copper wire harness is not easy to separate from the metal piece 1 to achieve higher conduction efficiency.
In order to simultaneously reduce the potential difference of copper and aluminum to the minimum due to the isolation of metal, the potential of the metal piece 1 is between the potential of the copper wire harness and the potential of the aluminum wire harness 3, thereby solving the problem that the direct welding of copper and aluminum does not conform to safety regulations.
In some embodiments, the material of the metal piece 1 comprises: tin-coated copper, wherein, tin-coated copper is the outside parcel copper product of tin material, and the hardness is moderate, can twine cladding aluminium pencil 3, therefore its outside copper product and copper pencil contact, inside tin material and 3 full contacts of aluminium pencil to guarantee that metalwork 1 fully contacts with copper, aluminium respectively, when reaching anticorrosive effect, can also realize better effect of switching on.
Further, contact pin 2 includes copper main part and tin copper-clad layer, tin copper-clad layer cladding is in the copper main part outside, 3 twines outside tin copper-clad layers of aluminium pencil, and, 3 outsides of aluminium pencil still wrap up metalwork 1, metalwork 1 also adopts tin copper-clad material to make, just so be equivalent to aluminium pencil 3 for all having tin's transition in the middle of the copper main part of inside and outside both sides and the copper pencil, carry out the wicking after the hard isolation again, tin just formed the three-layer transition structure of copper tin aluminium after the high temperature melting, and fine combination is a whole. Therefore, the whole terminal is welded, namely the copper terminal with copper as the main material on the outermost layer is welded and fixed with other copper wire bundles, the difficulty is reduced, and the stability after welding is high.
In some embodiments, a heat shrinkable sleeve is sleeved outside the welding position of the copper wire harness and the aluminum wire harness 3, and the welding position is sealed in the heat shrinkable sleeve by grouting. The operation mode is directly used for simultaneous sealing and sizing treatment by the heat-shrinkable sleeve after welding, so that the cost and the processing steps of the copper terminal and the redundant filling tin liquid are saved. In addition, the grouting of the heat-shrinkable sleeve and the varnish is sealed, so that a better anti-corrosion effect is achieved, and a better guarantee effect is played on the quality of the aluminum wire motor.
Embodiment two of the stator
According to an embodiment of the present invention, a stator includes a stator core and the terminal wiring device according to any one of the embodiments, and the terminal wiring device is mounted to the stator core through a bobbin 4 in an insulated manner. It should be noted that the stator including the terminal wiring device has the same technical advantages as the terminal wiring device, and thus, the description thereof is omitted.
Third embodiment of the aluminum wire motor
According to an embodiment of the present invention, an aluminum wire motor includes a rotor and a stator as described in the second embodiment, wherein the rotor is rotatably connected to the stator. It should be pointed out that, the aluminum wire motor including the above-mentioned stator has the same technical advantage with the above-mentioned stator, in addition, along with the constantly rising of material cost and the technological renewal iteration demand, the application of aluminum wire motor has occupied the absolute advantage of material cost under the condition of guaranteeing the performance, reduces the manual system expense to minimum, saves manufacturing cost greatly, makes the product more have market competitiveness, and the above-mentioned application is in the attack of technical barrier breakthrough aspect, has filled the blank of aluminum wire motor welding process.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A terminal wiring device, characterized by comprising:
a copper wire harness;
an aluminum wire harness having a pin supporting the aluminum wire harness; and the number of the first and second groups,
the metal piece is connected with the copper wire harness and wound around the aluminum wire harness, and the copper wire harness and the aluminum wire harness are welded through the metal piece.
2. The terminal wiring device according to claim 1, wherein the metal member covers the aluminum wire harness.
3. The terminal wiring device according to claim 1, wherein the aluminum wire harness is wound around the pin.
4. The terminal connecting device as claimed in claim 1 or 3, wherein the pin includes a plurality of pins, and the plurality of pins are mounted on the bobbin at intervals.
5. The terminal wiring device according to claim 1 or 3, wherein the pin includes a steel body and a tin-clad copper layer, the tin-clad copper is clad on the steel body, and the aluminum wire harness is wound around the tin-clad copper layer.
6. The terminal wiring device according to claim 1, further comprising a control system and a winding machine, wherein the control system is electrically connected with the winding machine so as to control the winding machine to wind and wrap the metal piece outside the aluminum wire harness.
7. The terminal wiring device according to claim 1, wherein the metal member is made of a material including: and (4) coating copper with tin.
8. The terminal wiring device according to claim 1, wherein a heat-shrinkable sleeve is fitted over an outer side of a weld of the copper wire harness and the aluminum wire harness, and the weld is sealed inside the heat-shrinkable sleeve by means of grouting.
9. A stator comprising a stator core and the terminal wiring device of claim 8, the stator winding being mounted in insulation with the stator core by a bobbin.
10. An aluminum wire electric motor comprising a stator as recited in claim 9 and a rotor, said rotor being rotatably connected to said stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154561.5U CN216390640U (en) | 2021-09-07 | 2021-09-07 | Terminal wiring device, stator and aluminum wire motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154561.5U CN216390640U (en) | 2021-09-07 | 2021-09-07 | Terminal wiring device, stator and aluminum wire motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216390640U true CN216390640U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122154561.5U Active CN216390640U (en) | 2021-09-07 | 2021-09-07 | Terminal wiring device, stator and aluminum wire motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216390640U (en) |
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2021
- 2021-09-07 CN CN202122154561.5U patent/CN216390640U/en active Active
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