JP2022030773A - Resolver rotor wire connection substrate, resolver rotor wire connection structure, resolver rotor, resolver, and resolver rotor wire connection method - Google Patents

Abstract

To provide a technology that enables a magnet wire connection of a resolver rotor to be easily and surely performed more than conventional magnet wire twisting works, and can effectively suppress a fall in non-adjusted ratio or yield in a latter step.SOLUTION: A resolver rotor wire connection substrate 10 is the substrate that is used in connecting a rotor core coil 13 and a rotor transformer coil 16 in a resolver rotor 20, is configured to be used by being provided on a rotor core 15-side edge surface (deck part) 12 of a rotor transformer 11, and can use a printed substrate optimally as the wire connection substrate 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to a resolver rotor connection substrate, a resolver rotor connection structure, a resolver rotor, a resolver, and a resolver rotor connection method, and in particular, a magnet wire capable of effectively preventing a decrease in straightness and yield in a subsequent process. It is related to wiring technology.

FIG. 7 is an explanatory diagram showing a conventional method of connecting a resolver rotor. As shown in the figure, in order to connect the magnet wire 914 of the rotor core winding 913 and the magnet wire 917 of the rotor transformer winding 916 in the conventional resolver rotor 920, the corresponding magnet wires 914 and 917 are twisted and then soldered. Is going. That is, the corresponding magnet wire 914 ((a) in the figure) and the magnet wire 917 ((c) in the figure) are twisted and soldered, and the corresponding magnet wire 914 ((b) in the figure) and the corresponding magnet wire 914 ((b) in the figure). By twisting and soldering the magnet wires 917 ((d) in the figure), the respective joining operations are performed.

Patent applications have been filed for the method of connecting the resolver rotor. In Patent Document 1 below, the applicant has a structure for connecting a brushless excitation type rotary electric machine that can omit the insulation work of the solder connection part and the work of retracting the insulation part into the winding part at the time of connection work of the rotor / rotor transformer winding. As a result, a structure consisting of an insulating support plate and a conductive means having a entwined portion that is provided through the support plate and protrudes on each surface side is provided between the rotor core and the rotor transformer core of the brushless excitation type rotary electric machine. The method is disclosed in which each end of the winding of both the rotor core and the rotor transformer core is entwined and connected to each entwined portion.

Further, in Patent Document 2, as a resolver winding fixing structure suitable for fixing the crossover wire, spacers are provided between the inner core and the resolver rotor and fixed to the rotating shafts, respectively, and the flange of the inner core is provided. A notch that draws out the crossover is formed in the part, the fixing groove and the notch coincide with the direction of the rotation axis, the rotary transformer output winding and the resolver excitation winding are soldered, and the crossover wire. Discloses a structure in which an insulating tube is covered with a wire connecting both windings and fitted into a fixing groove, and the fixing groove and the magnetic poles are displaced from each other in the circumferential direction. As a result, a frictional force is generated between the insulating tube and the fixing groove, and the fixing is fixed without falling out of the fixing groove.

Japanese Unexamined Patent Publication No. 2017-026531 "Structure for connection of brushless excitation type rotary machine, connection structure, brushless excitation type rotary machine and its manufacturing method" Japanese Unexamined Patent Publication No. 2004-135412 “Rotating transformer type resolver winding fixing structure”

Since the magnet wire is thin and has a low tensile strength of several tens of g, it may be torn off during manual joining work (wiring work). Even so, if the wire is clearly broken, the necessary measures can be taken, but there are cases where the wire is partially broken, which is not visible on the outside. It causes a decline. And in the worst case, the slightly damaged magnet wire may not detect the damage until the product is completed, which may be a defect in the market.

If the conventional wiring method described with reference to FIG. 7, that is, the work of twisting two magnet wires 914 and 917 and soldering them, can be improved to a method that can improve both product quality and productivity. It is considered that the occurrence of defects that are difficult to detect such as half-breaks can be reduced, and the decrease in the straightness rate and the rate can be suppressed. Specifically, if there is a simpler and more reliable joining method that can replace the twisting work of the magnet wires, both product quality improvement and productivity improvement can be realized.

Therefore, the problem to be solved by the present invention is to eliminate the problem of the prior art and provide a wiring technique capable of effectively suppressing a decrease in the straightness rate and the yield in the subsequent process with respect to the magnet wire connecting method of the resolver rotor. Is. In particular, it is to provide a magnet wire connection technique that is simpler and more reliable than the conventional magnet wire twisting work.

As a result of studying the above-mentioned problems, the inventor of the present application has decided that the joining method is not the conventional soldering of magnet wires but soldering to a substrate, so that the magnet wires can be pulled out or twisted together. It has been found that the work of applying a tensile load to the wire can be eliminated, and as a result, the work can be simplified, and the present invention has been completed based on this. That is, the invention claimed in the present application, or at least the invention disclosed as a means for solving the above problems, is as follows.

[1] A substrate used for connecting a rotor core winding and a rotor transformer winding in a rotor of a resolver, and is characterized in that it is provided on a rotor core side end face portion (hereinafter referred to as "deck portion") of a rotor transformer and used. The board for connecting the resolver rotor.
[2] The substrate for connecting a resolver rotor according to [1], wherein the substrate is a printed circuit board.
[3] The rotor core winding terminal for connecting the magnet wire from the rotor core winding and the rotor transformer winding terminal for connecting the magnet wire from the rotor transformer winding are provided. The substrate for connecting the resolver rotor according to any one of 1] and [2].
[4] Connect to the connection board according to any one of [1], [2], and [3], the magnet wire from the rotor core winding connected to the connection board, and the connection board. Resolver rotor wiring structure, characterized by consisting of a magnet wire from a rotor transformer winding.

[5] A resolver rotor comprising the wiring board according to any one of [1], [2], and [3].
[6] A resolver comprising the resolver rotor according to [5].
[7] A step of connecting a magnet wire from a rotor core winding to the wiring board according to any one of [1], [2], and [3] provided in the resolver, and a rotor transformer winding. A method for connecting a resolver rotor, which comprises a process of connecting a magnet wire from a wire.
[8] The wiring board according to any one of [1], [2], and [3] is provided on the deck portion of the resolver rotor, and the magnet wire from the rotor core winding is connected to the connection board. A method for connecting a resolver rotor, which comprises a step of connecting a magnet wire from a rotor transformer winding.

Since the resolver rotor connection substrate, the resolver rotor connection structure, the resolver rotor, the resolver, and the resolver rotor connection method of the present invention are configured as described above, they are based on the conventional magnet wire twisting operation. However, the simple and reliable wiring method of the magnet wire can reduce the occurrence of defects that are difficult to detect, such as half-breaks, and can effectively suppress the decrease in the straightness rate and the yield in the subsequent process.

According to the resolver rotor connection board and the like of the present invention, the conventional joining work by twisting the magnet wires is not required, and the magnet wires need only be soldered to a specific place on the connection board. Therefore, the required work skills can be reduced. Since mistakes are less likely to occur in work that does not require skills, it is possible to improve yield and product quality. Then, work efficiency can be improved and required skills can be reduced.

In addition, by eliminating the manual twisting work, mechanical assembly is possible, and manufacturing can be fully automated. In advancing the automated structuring of magnet wire connection in the resolver rotor, the connection method using the connection substrate of the present invention is highly useful.

It is explanatory drawing which shows the structural example of the wiring board of the resolver rotor of this invention. It is explanatory drawing which shows the state which the connection board of the resolver rotor of FIG. 1 is provided in the deck part of a rotor. It is explanatory drawing which shows the state which the connection is made to the connection board of the resolver rotor shown in FIG. It is a side view from the side surface direction of the connection state shown in FIG. It is a side view from the front direction of the connection state shown in FIG. It is explanatory drawing which shows the structural example of the wiring board of the resolver rotor of this invention of a post-embedded type. It is explanatory drawing which shows the process of incorporating the wiring board of the resolver rotor shown in FIG. 5 into the deck part of a rotor. It is explanatory drawing which shows the wiring method of the conventional resolver rotor.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory diagram showing a configuration example of a wiring board for a resolver rotor of the present invention. Further, FIG. 2 is an explanatory diagram showing a state in which the wiring board for the resolver rotor of FIG. 1 is provided on the deck portion of the rotor. As shown in these, the wiring board 10 of the resolver rotor is a board for connecting the rotor core winding 13 and the rotor transformer winding 16 in the rotor 20 of the resolver, and is the end face portion of the rotor transformer 11 on the rotor core 15 side. The main configuration is that it is provided on the (deck portion) 12 and used.

The deck portion 12 is a constricted portion of the rotor 20, and due to its function as a resolver, it does not cause mechanical interference with any component (structure) constituting the resolver. Therefore, the method of the present invention in which the wiring board 10 is arranged here to connect the magnet wires is possible. A printed circuit board can be preferably used as the wiring board 10.

As shown in FIG. 1, the wiring board 10 of the resolver rotor has a planar shape that can be mounted on the deck portion 12 in accordance with the planar shape. The annular form shown is the most suitable form. Pads 2 and 3 having a predetermined wiring pattern are provided on the connection board 10. In the figure, the wiring pattern provided on the pad 2 or the like is omitted.

Further, the pads 2 and the like may be provided over the entire circumference of the wiring board 10, but only a part thereof is shown in the figure. Further, the pad 2 is for connecting the magnet wire of the rotor core winding 13, and the pad 3 is for connecting the magnet wire of the rotor transformer winding 16, but the arrangement shown in the figure is an example. These omissions and the like are the same in each of the figures after FIG. In the following description, the pad 2 will be referred to as a “rotor core winding terminal 2”, and the pad 3 will be referred to as a “rotor transformer winding terminal 3”.

In the connection method according to the present invention, instead of twisting and soldering two magnet wires as in the conventional case, each magnet wire is directly connected to the rotor core winding terminal 2 or the rotor transformer winding terminal 3. It consists only of the (soldering) process. No special skill is required, work efficiency is high, and it is possible to obtain highly uniform product quality with a low possibility of defects. In addition, it is possible to suppress a decrease in the straightness rate and the yield in the post-process.

FIG. 3 is an explanatory view of a perspective view showing a state in which a connection is made to the connection board of the resolver rotor shown in FIG. 4a and 4b are side views of the wiring state shown in FIG. 3 from the side surface direction and the front direction, respectively. As shown in these, the main wiring board 10 has a rotor transformer winding terminal 2 for connecting the magnet wire 14 from the rotor core winding 13 and a rotor transformer winding connecting the magnet wire 17 from the rotor transformer winding 16. It is equipped with a terminal 3.

That is, the magnet wire 14 from the rotor core winding 13 is directly connected to the rotor core winding terminal 2 on the connection board 10 of the resolver rotor, and the rotor transformer winding terminal 3 is connected to the rotor transformer winding terminal 16. The joining work can be performed simply by connecting the magnet wire 17 as it is. The magnet wire 14 may be connected to the rotor core winding terminal 2 by soldering.

The wiring substrate 10 described above, the magnet wire 14 from the rotor core winding 13 connected to the wiring substrate 10, and the magnet wire from the rotor transformer winding 16 connected to the wiring substrate 10 The wiring structure 30 of the resolver rotor including 17 is also within the scope of the present invention. Further, the resolver rotor 20 provided with the wiring board 10 and the resolver provided with such a resolver rotor 20 are also within the scope of the present invention. In these resolver rotor inventions and resolver inventions, the wiring board may be a method in which an annular board is provided in advance in the manufacturing process, while the wiring board parts (described later) are incorporated according to the joining work for connection. A method using a substrate may also be used.

As shown in each of the above figures, in the method in which the annular connection board 10 is provided in the resolver rotor 20 in advance in the manufacturing process, the magnet wire 14 from the rotor core winding 13 is attached to the connection board 10. The joining work is performed by a method of connecting a resolver rotor including a step of connecting and a step of connecting the magnet wire 17 from the rotor transformer winding 16, and such a connecting method is also within the scope of the present invention. On the other hand, a method of incorporating parts of a connection board into a connection board according to the joining work and a connection method based on the method will be described with reference to another figure.

FIG. 5 is an explanatory diagram showing a configuration example of a wiring board of the resolver rotor of the present invention of the post-embedded type. Further, FIG. 6 is an explanatory diagram showing a process of incorporating the wiring board of the resolver rotor shown in FIG. 5 into the deck portion of the rotor. As shown in FIG. 5, the post-embedded resolver rotor connection boards 58 and 59 of the present invention are not closed to the rotor shaft as in the ring-shaped connection board 10 described above, but are joined. It is an open form that can be installed later on the deck section 512 according to the work. The wiring boards 58 and 59 form a wiring board set 510. Although the wiring board set 510 consisting of the two wiring boards 58 and 59 is shown here, the number of wiring boards constituting the set is not limited to two. However, two is necessary and sufficient.

The step of attaching the post-installation type connection board 58 or the like to the deck portion 512 of the resolver rotor 520 and connecting the magnet wire from the rotor core winding 513 to the connection board 58 or the like, and the rotor transformer winding 516. The joining work is performed by the method of connecting the resolver rotor including the step of connecting the magnet wire from the above. Such a connection method is also within the scope of the present invention.

According to the resolver rotor connection substrate, the resolver rotor connection structure, the resolver rotor, the resolver, and the resolver rotor connection method of the present invention, the conventional joining work by twisting magnet wires is not required, and the yield, straightness, and product The quality and work efficiency can be improved and the required skills can be reduced. It also leads to full automation of resolver manufacturing. Therefore, it is an invention with high industrial applicability in the field of resolver manufacturing / use and all related fields.

2, 52 ... Rotor core winding terminal 3, 53 ... Rotor transformer winding terminal 10 ... Resolver Rotor connection board 11, 511 ... Rotor transformer 12, 512 ... Rotor transformer end face portion (deck portion)
13, 513 ... Rotor core winding 14 ... Magnet wire from rotor core winding 15, 515 ... Rotor core 16, 516 ... Rotor transformer winding 17 ... Magnet wire from rotor transformer winding 20, 520 ... Resolver rotor 30 ... Resolver rotor Connection structure 58, 59 ... Built-in type connection board 510 ... Resolver rotor connection board set (built-in type)
911 ... Rotor transformer 912 ... Rotor core side end face portion (deck portion) of the rotor transformer
913 ... Rotor core winding 914 ... Magnet wire (Rotor core winding)
915 ... Rotor core 916 ... Rotor transformer winding 917 ... Magnet wire (rotor transformer winding)
920 ... Resolver rotor

Claims (8)

A substrate for connecting a rotor core winding and a rotor transformer winding in a rotor of a resolver, characterized in that it is provided on a rotor core side end face portion (hereinafter referred to as “deck portion”) of a rotor transformer and used. Resolver rotor connection board. The substrate for connecting a resolver rotor according to claim 1, wherein the substrate is a printed circuit board. 1. 2. The substrate for connecting the resolver rotor according to any one of 2. The connection board according to any one of claims 1, 2 and 3, the magnet wire from the rotor core winding connected to the connection board, and the rotor transformer winding connected to the connection board. Resolver rotor wiring structure, characterized by consisting of a magnet wire from. A resolver rotor comprising the wiring board according to any one of claims 1, 2 and 3. A resolver comprising the resolver rotor according to claim 5. The step of connecting the magnet wire from the rotor core winding to the wiring board according to any one of claims 1, 2 and 3 provided in the resolver, and connecting the magnet wire from the rotor transformer winding. A method of connecting a resolver rotor, which comprises a process of connecting the resolver rotor. A step of providing the connection board according to any one of claims 1, 2 and 3 on the deck portion of the resolver rotor, connecting the magnet wire from the rotor core winding to the connection board, and the rotor transformer. A method of connecting a resolver rotor, which comprises a process of connecting a magnet wire from a winding.

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