CN210535868U - Terminal and motor applying same - Google Patents
Terminal and motor applying same Download PDFInfo
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- CN210535868U CN210535868U CN201921663601.5U CN201921663601U CN210535868U CN 210535868 U CN210535868 U CN 210535868U CN 201921663601 U CN201921663601 U CN 201921663601U CN 210535868 U CN210535868 U CN 210535868U
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- terminal
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- contact pin
- pin
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Abstract
The utility model discloses a terminal and a motor using the same, which comprises a welding part and a connecting part which are integrally connected and formed; the thickness of the welding part is smaller than that of the connecting part, so that step transition is formed at the joint of the welding part and the connecting part. And a matching structure for placing a connecting wire or a contact pin is arranged on the welding part. It is right the utility model discloses a because the thickness of weld part is less than the thickness of connecting portion, can improve the weld part of terminal and the welding effect between connecting wire or the contact pin.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a motor of terminal and applied this terminal.
Background
The terminal that uses more among the prior art, its welding part is unanimous with other positions of terminal thickness, and such structure leads to the volume of welding part great, and welding heat consumption is just corresponding increase during the welding, influences the mobile effect of soldering tin at the welding department, and then influences holistic welding effect. When the terminal is used in a motor, the welding part of the terminal is welded with the pin of the motor part, the connecting part is connected with an external connector, such as a rast connector, and the stability of the welding between the pin and the terminal directly affects the stability of the connection between the motor and the external connector.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a terminal to solve the technical problem who improves the welding effect between the weld part of terminal and connecting wire or the contact pin.
The second purpose of the utility model is to provide a motor to solve the technical problem who improves the welding effect between the weld part of terminal and connecting wire or the contact pin.
The utility model discloses a terminal realizes like this:
a terminal, comprising: the welding part and the connecting part are integrally connected and formed; wherein
The thickness of the welding part is smaller than that of the connecting part, so that step transition is formed at the joint of the welding part and the connecting part; and
and a matching structure for placing a connecting wire or a contact pin is arranged on the welding part.
In a preferred embodiment of the present invention, the engaging structure is a terminal groove formed on the welding portion.
In a preferred embodiment of the present invention, the opening direction of the terminal groove is parallel to the length direction of the connecting portion, and the opening of the terminal groove is located at one end of the welding portion away from the connecting portion.
In the preferred embodiment of the present invention, the width of the connecting portion is smaller than the width of the welding portion, and the connecting portion is located at a middle position of an end portion of the length direction of the welding portion, so that the end surface of the welding portion connected to the connecting portion is opposite to the two side end surfaces of the length direction of the connecting portion, and a boss limiting surface is formed between the two side end surfaces.
In a preferred embodiment of the present invention, a V-shaped transition angle is disposed at an end of the connecting portion away from the welding portion.
The utility model discloses a motor realizes like this:
an electric machine comprising:
a motor body structure including a rotor assembly and a coil assembly; the coil assembly is fixedly connected with a contact pin; and
the terminal connecting assembly comprises at least two terminals which are suitable for being electrically connected with the contact pin, a main body part used for fixing the at least two terminals, and a socket part connected with the main body part; the socket part is used for connecting an external connector to realize the electrical connection between the terminal and the external connector.
In a preferred embodiment of the present invention, the coil assembly includes a frame and a coil wound on the frame;
the framework comprises a base body and a contact pin supporting part fixedly connected with the base body; the base body is used for winding and supporting the coil;
the contact pin comprises a winding part, an installation part and an external connection part which are integrally formed and sequentially connected, wherein the installation part is used for fixedly connecting with the contact pin supporting part; the external connecting part is used for being placed in the matching structure so as to realize the electrical connection between the external connecting part and the terminal.
In a preferred embodiment of the present invention, the main body has a cavity for accommodating the terminal, and an end of the cavity facing the pin is an open structure so that the pin is suitable for passing through the open structure and then connecting with the terminal located in the cavity; and
at least two mounting holes for fixing at least two terminals are arranged in the cavity respectively;
at least two of the mounting holes are communicated with the socket part so that the connecting part of the terminal is suitable for realizing the electrical connection with the external connector through the socket part.
In a preferred embodiment of the present invention, the connecting portion of the terminal is adapted to be inserted into the mounting hole and form an interference fit with the mounting hole, and the welding portion is adapted to be supported on the end surface of the main body portion around the mounting hole.
In the preferred embodiment of the present invention, an insulating rib is disposed between adjacent mounting holes of at least two of the mounting holes.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a motor of terminal and applied this terminal because the thickness of weld part is less than connecting portion and makes weld part and connecting portion department of meeting are formed with the step transition, can improve the welding effect between weld part and connecting wire or the contact pin. Particularly, guaranteeing that the cross-sectional dimension of welding part perpendicular to thickness direction is unchangeable, reducing the thickness of welding part, and then reduce the welding part volume, soldering tin is melting when dripping to the welding part like this, and the welding heat of soldering tin is certain, and the volume of welding part is big more, and the heat consumption is just big in the twinkling of an eye, and it is very fast to fall the range when soldering tin temperature, will influence the mobility of soldering tin, leads to soldering tin can not be fully abundant carry out effectual welding to the welding connecting piece. In order to reduce the heat loss rate of the soldering tin, the amount of the soldering tin can be increased, the volume of a welding part can be reduced, and the heat loss can be reduced.
Drawings
Fig. 1 is a first view structural diagram of a terminal according to embodiment 1 of the present invention;
fig. 2 is a second view structural diagram of the terminal according to embodiment 1 of the present invention;
fig. 3 is a third view structural diagram of the terminal according to embodiment 1 of the present invention;
fig. 4 is a schematic view of the overall explosion structure of the motor according to embodiment 2 of the present invention;
fig. 5 is a schematic view of the overall structure of a motor according to embodiment 2 of the present invention
Fig. 6 is a schematic structural diagram of a pin according to embodiment 2 of the present invention;
fig. 7 is a schematic cross-sectional view of a pin and terminal in a mated state according to embodiment 2 of the present invention;
fig. 8 is a schematic structural view of a pin and a terminal according to embodiment 2 of the present invention, and a terminal and an external connector in a mated state;
fig. 9 is a schematic structural view of an external connector according to embodiment 2 of the present invention;
fig. 10 is a schematic cross-sectional view showing a state of engagement between a terminal and a main body according to embodiment 2 of the present invention;
fig. 11 is a schematic structural view of a main body part according to embodiment 2 of the present invention;
fig. 12 is a schematic perspective view illustrating a three-dimensional structure of the embodiment 2 of the present invention in which the contact pin and the terminal are connected.
In the figure: the motor comprises a machine shell A, a rotor assembly 100, a coil assembly 200, a framework 201, a base 2011, a pin supporting part 2012, a coil 202, a transmission assembly 300, a pin 400, a winding part 401, a mounting part 402, an external connecting part 403, a terminal 500, a welding part 501, a connecting part 502, a terminal groove 503, a boss limiting surface 505, a V-shaped transition angle 506, a main body part 600, a mounting hole 601, a cavity 602, a chamfer structure R, a socket part 700, an external connector 800, a U-shaped adapter groove 801, an elastic contact 802 and an insulating convex rib 1000.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 to 3, the present embodiment provides a terminal 500, including: a welding part 501 and a connecting part 502 which are integrally connected and formed; the thickness of the welding portion 501 is smaller than that of the connecting portion 502, so that a step transition K is formed at a joint of the welding portion 501 and the connecting portion 502, a cross section of the step transition K may be an L-shaped structure or an inverted T-shaped structure, which is not limited in this embodiment.
Optionally, the soldering portion 501 and the connecting portion 502 are integrally formed by stamping and are made of a conductive material, preferably a copper material.
Particularly, guaranteeing that the cross sectional dimension of welding part 501 perpendicular to thickness direction is unchangeable, reduce the thickness of welding part 501, and then reduce welding part 501 volume, soldering tin is melting when dripping to welding part 501 position like this, the welding heat of soldering tin is certain, welding part 501's volume is big more, the heat consumption is just big in the twinkling of an eye, it is very fast to fall the range when soldering tin temperature, will influence the mobility of soldering tin, lead to soldering tin can not be fully abundant carry out effectual welding to the welding connecting piece, reduce the calorific loss rate of soldering tin, can improve the quantity of soldering tin and reduce the loss that welding part 501 volume reduced heat.
In order to facilitate effective connection between the contact pin 400 or the connection wire and the soldering portion 501, a matching structure for placing the connection wire or the contact pin is disposed on the soldering portion 501. For the matching structure herein, referring to the drawings of the present embodiment, the matching structure is a terminal groove 503 formed on the welding portion 501. In the present embodiment, referring to the drawings, the opening direction of the terminal groove 503 is parallel to the longitudinal direction of the connecting portion 502, and the opening of the terminal groove 503 is located at one end of the welding portion 501 away from the connecting portion 502. Of course, the opening of the terminal groove 503 may be in other positions, that is, the opening direction of the terminal groove 503 and the length direction of the connecting portion 502 are not necessarily parallel, and the embodiment is not limited in any way, and the embodiment merely takes the case that the opening of the terminal groove 503 is located at one end of the welding portion 501 far away from the connecting portion 502 to facilitate the insertion and the mating of the terminal groove 503 and the plug 400.
In addition, the matching structure for placing the connecting wire or the pin on the soldering portion 501 may also be a terminal hole structure provided on the soldering portion 501 and adapted to insert the pin therein, for this reason, as long as the soldering portion 501 and the pin are in a contact matching state, and then the step of soldering is matched to realize the electrical connection between the pin and the terminal 500, which satisfies the use requirement of the embodiment, so the structure of the terminal groove 503 in the embodiment is merely described as an example, and is not an absolute limitation on the matching structure.
In addition, the width b of the connecting portion 502 is smaller than the width a of the welding portion 501, and the connecting portion 502 is located at a middle position of one end portion in the length direction of the welding portion 501, so that a boss limiting surface 505 is respectively formed between two side end surfaces in the length direction of the connecting portion 502 of an end surface where the welding portion 501 and the connecting portion 502 are in contact. The boss-retaining surface 505 here is primarily intended to provide retention between the terminal 500 and other mounting structures along the length of the terminal 500.
Furthermore, a V-shaped transition angle 506 is disposed at an end of the connecting portion 502 away from the welding portion 501. The V-shaped transition angle 506 is mainly used to facilitate the quick connection between the terminal 500 and the external connector 800 when the terminal 500 is electrically connected to the external connector 800.
Example 2:
referring to fig. 4 to 12, on the basis of the terminal 500 of embodiment 1, the present embodiment further provides a motor, and specifically, the motor of the present embodiment includes: the motor body structure and the terminal 500 connecting assembly. The motor body structure includes a rotor assembly 100, a coil assembly 200, and a transmission assembly 300 in transmission connection with the rotor assembly 100, and the rotor assembly 100, the coil assembly 200, and the transmission assembly 300 are housed in a housing a together. The cooperation between the transmission assembly 300 and the rotor assembly 100, and the cooperation between the rotor assembly 100 and the coil assembly 200 are conventional and well-known in the art, and the detailed description thereof is omitted.
It should be noted that the coil assembly 200 of the present embodiment is fixedly connected with a pin 400; the terminal 500 connecting assembly of the present embodiment includes at least two terminals 500 adapted to be electrically connected to the pin 400, as described in embodiment 1, a main body 600 for fixing the at least two terminals 500, and a socket 700 connected to the main body 600; the present embodiment is only exemplified by a case where the number of the terminals 500 is two, that is, a pair of the terminals 500, in conjunction with the drawings. The socket 700 is used for connecting the external connector 800 to electrically connect the terminal 500 and the external connector 800, and the connection between the main body 600 and the socket 700 may be an integrally formed structure or a detachable assembly structure, which is not limited in this embodiment. The external connector 800, such as but not limited to the RAST connector, may be selected to mate with the socket 700 with a clearance fit, with a maximum mating clearance less than 1mm, so that the RAST connector does not shake to a greater extent due to external forces. That is, the external connector 800 and the socket 700 are connected by inserting, and the terminal 500 can be electrically connected to the external connector 800 by inserting into the socket 700.
Specifically, the coil assembly 200 includes a bobbin 201 and a coil 202 wound around the bobbin 201; the framework 201 comprises a base 2011 and a contact pin 400 supporting component 2012 fixedly connected with the base 2011; the base 2011 is used to wind and support the coil 202. Secondly, the pin 400 comprises a wire winding part 401, an installation part 402 and an external connection part 403 which are integrally formed and sequentially connected, wherein the wire winding part 401 is used for winding an enameled wire, and the installation part 402 is used for fixedly connecting with a support part 2012 of the pin 400; the external connection portion 403 is used to be placed in the terminal groove 502 of the terminal 500 to realize the electrical connection with the terminal 500, specifically, the external connection portion 403 is placed in the terminal groove 503, and then the tin-plating welding between the pin 400 and the terminal groove 503 is performed. This embodiment is with welding part 501 of terminal 500 processing of making thin, when soldering tin contact welding part 501, because the volume reduces, the absorbed heat reduces, and soldering tin temperature reduction rate diminishes, can let soldering tin keep fine mobility, makes the welding part correspond this embodiment and just can wrap up even soldering tin between external connecting portion 403 and the terminal groove 503 of contact pin 400 for welding quality improves.
In detail, the main body 600 has a cavity 602 for accommodating the terminal 500, the cavity 602 is formed by enclosing three side walls of the main body 600, and an end of the cavity 602 facing the pin 400 is an opening structure so that the pin 400 is suitable for being connected with the terminal 500 in the cavity 602 after passing through the opening structure; and a pair of mounting holes 601 for fixing the pair of terminals 500, respectively, are provided in the cavity 602. The socket portion 700 has an opening facing away from the body portion 600 adapted to structurally mate with the external connector 800. And the pair of mounting holes 601 are communicated with the socket part 700 so that the connecting part 502 of the terminal 500 is suitable for achieving the electrical connection with the external connector 800 through the socket part 700, that is, the terminal 500 partially extends into the socket part 700 through the external connector 800 and the socket part 700, so as to achieve the electrical connection between the terminal 500 and the external connector 800 through the transitional structure of the socket part 700.
When the terminal 500 is inserted into the mounting hole 601, the connection portion 502 of the terminal 500 is inserted from the opening of the mounting hole 601, and a chamfered structure R is provided at the opening of the mounting hole 601 in order to improve the smoothness of the insertion of the terminal 500.
The connecting portion 502 of the terminal 500 is adapted to form an interference fit with the mounting hole 601, and the boss stopper face 505 is adapted to be supported on an end face of the body portion 600 around the mounting hole 601 after the connecting portion 502 of the terminal 500 and the mounting hole 601 are fitted in place. The interference fit relationship between the connection portion 502 and the mounting hole 601 enables the mounting hole 601 to provide clamping holding force for the connection portion 502 of the terminal 500, so that the terminal 500 and the mounting hole 601 are fixed in a limited manner in the width direction of the terminal 500, and the terminal 500 is not prone to loosening or displacement relative to the mounting hole 601. The boss stopper 505 is used to limit the position of the terminal 500 pressed into the mounting hole 601.
In addition, in an alternative embodiment, in order to ensure a sufficient electrical gap and creepage distance between the pair of terminals 500, an insulating rib 1000 is provided between the pair of mounting holes 601.
The electrical connection between the terminal 500 and the external connector 800, such as but not limited to a RAST connector, is achieved by the resilient contact between the terminal 500 and the external connector 800. Specifically, the RAST connector is provided with a U-shaped mating groove 801 adapted to receive a portion of the connecting portion 502 of the terminal 500 away from the soldering portion 501 in a recessed manner, that is, a portion of the connecting portion 502 of the terminal 500 away from the soldering portion 501 is inserted into the U-shaped mating groove 801 to achieve the mating of the terminal 500 with the RAST connector. In order to effectively ensure the stability of the electrical connection between the U-shaped mating groove 801 and the connecting portion 502 of the terminal 500, the two groove walls of the U-shaped mating groove 801 corresponding to the pair of oppositely disposed side end surfaces of the connecting portion 502 of the terminal 500 are respectively provided with the elastic contact piece 802 adapted to be deformed by compression, that is, when the connecting portion 502 of the terminal 500 is mated with the external connector 800, the elastic contact piece 802 is deformed by being pressed by the side end surface of the connecting portion 502 of the terminal 500 as the connecting portion 502 of the terminal 500 is continuously inserted into the U-shaped mating groove 801, and the deformed elastic contact piece 802 prevents the connecting portion 502 of the terminal 500 from being separated from the U-shaped mating groove 801 and ensures the effective electrical connection between the terminal 500 and the external connector 800.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, 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. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A terminal, comprising: the welding part and the connecting part are integrally connected and formed; wherein
The thickness of the welding part is smaller than that of the connecting part, so that step transition is formed at the joint of the welding part and the connecting part; and
and a matching structure for placing a connecting wire or a contact pin is arranged on the welding part.
2. The terminal of claim 1, wherein the mating structure is a terminal groove formed in the soldering portion.
3. The terminal of claim 2, wherein the opening direction of the terminal groove is parallel to the length direction of the connecting portion, and the opening of the terminal groove is located at an end of the welding portion away from the connecting portion.
4. The terminal of claim 1, wherein the width of the connecting portion is smaller than the width of the soldering portion, and the connecting portion is located at a middle position of one end portion in the length direction of the soldering portion, so that a boss limiting surface is respectively formed between two side end surfaces of the end surface of the soldering portion, which is in contact with the connecting portion, in the length direction of the connecting portion.
5. A terminal according to any one of claims 1 to 4, wherein a V-shaped transition angle is provided at an end of the connecting portion remote from the solder portion.
6. An electric machine, comprising:
a motor body structure including a rotor assembly and a coil assembly; the coil assembly is fixedly connected with a contact pin; and
a terminal connecting assembly, comprising at least two terminals according to any one of claims 1 to 5, suitable for being electrically connected with the pins, a main body part for fixing the at least two terminals, and a socket part connected with the main body part; the socket part is used for connecting an external connector to realize the electrical connection between the terminal and the external connector.
7. The electric machine of claim 6, wherein the coil assembly comprises a bobbin and a coil wound around the bobbin;
the framework comprises a base body and a contact pin supporting part fixedly connected with the base body; the base body is used for winding and supporting the coil;
the contact pin comprises a winding part, an installation part and an external connection part which are integrally formed and sequentially connected, wherein the installation part is used for fixedly connecting with the contact pin supporting part; the external connecting part is used for being placed in the matching structure so as to realize the electrical connection between the external connecting part and the terminal.
8. The electric machine of claim 6 wherein the body portion has a cavity for receiving the terminal, the cavity having an open configuration at an end thereof facing the pin such that the pin is adapted to pass through the open configuration and then connect to the terminal within the cavity; and
at least two mounting holes for fixing at least two terminals are arranged in the cavity respectively;
at least two of the mounting holes are communicated with the socket part so that the connecting part of the terminal is suitable for realizing the electrical connection with the external connector through the socket part.
9. The electric machine of claim 8, wherein the connecting portion of the terminal is adapted to be inserted into the mounting hole and form an interference fit therewith, and the soldering portion is adapted to be supported on an end surface of the body portion around the mounting hole.
10. The electric machine of any one of claims 8 or 9, wherein an insulating bead is provided between adjacent ones of at least two of the mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663601.5U CN210535868U (en) | 2019-09-30 | 2019-09-30 | Terminal and motor applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663601.5U CN210535868U (en) | 2019-09-30 | 2019-09-30 | Terminal and motor applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210535868U true CN210535868U (en) | 2020-05-15 |
Family
ID=70607206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921663601.5U Active CN210535868U (en) | 2019-09-30 | 2019-09-30 | Terminal and motor applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210535868U (en) |
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2019
- 2019-09-30 CN CN201921663601.5U patent/CN210535868U/en active Active
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