JP5290710B2 - Cylindrical resistor mounting and cylindrical resistor mounting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylindrical resistor attachment tool that can fit and remove a cylindrical resistor to/from a substrate, or can improve the workability of replacement. <P>SOLUTION: The cylindrical resistor attachment tool 10 has a fitting section 20, a pair of erected sections 30 and a pair of supporting sections 40, and is formed by bending a metal plate. The erected sections 30 are formed by bending the metal plate from both ends of the fitting section 20. The supporting sections 40 are formed by bending the metal plate from terminal ends of the erected sections 30, and provided with a lower piece 41 and an upper piece 42. The pair of supporting sections 40 are inserted into the cylindrical resistor, and configured in such a manner as to be pressed in a direction where they approach each other, so as to pinch the cylindrical resistor. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a cylindrical resistor mounting tool for mounting a cylindrical resistor on a substrate surface and a mounting method of the cylindrical resistor.

  An example of a conventional cylindrical resistor fixture is disclosed in Patent Document 1. Hereinafter, Patent Document 1 will be described.

  The fixture disclosed in Patent Document 1 includes a pair of fixtures sandwiched from both sides of the cylindrical resistor. Each fixture includes a support portion, a rising portion, a fitting portion, and a bending / extending portion, and these are integrally formed by a single plate-like member. The support part is a part fixed to the substrate surface. The rising portion is erected substantially perpendicularly to the substrate surface continuously from the end of the support portion. The insertion portion is bent continuously in a U shape from the end of the rising portion, and is fitted into the hollow portion of the cylindrical resistor. The bending portion is bent downward from the end of the fitting portion, and is passed over to close the U-shaped opening portion in order to maintain the U-shaped width formed by the fitting portion.

When attaching the cylindrical resistor to the board surface, the fitting portions of the pair of fittings are respectively inserted into the hollow portions of the cylindrical resistor from both ends of the cylindrical resistor, and the pair of fittings are attached to the cylindrical resistor. Installing. Then, the support part of a fixture is fixed to a board | substrate surface with a volt | bolt etc. By this operation, the cylindrical resistor is attached to the substrate surface.
JP-A-11-101204

  In the cylindrical resistor mounting tool disclosed in Patent Document 1, when mounting the cylindrical resistor on the board surface, the mounting tool is attached to the cylindrical resistor, and then the mounting tool is fixed to the board surface. However, in the installation work of a large cylindrical resistor used for a power converter or the like, it is difficult to fix the mounting tool to the board surface with a bolt or the like while supporting the mounting tool on which the cylindrical resistor is mounted. is there. In the case of mounting work on a vertical board surface or the like, it becomes even more difficult.

  Moreover, when removing a cylindrical resistor from a board | substrate surface, after removing a fixture from a board | substrate surface, a cylindrical resistor is removed from a fixture. Therefore, it is difficult as in the mounting work.

  In addition, when replacing the cylindrical resistor, the workability is not good because the cylindrical resistor cannot be removed from the fixture unless the fixture is removed from the substrate surface.

  Furthermore, in the fixture disclosed in Patent Document 1, when the fixture is to be fixed to the substrate surface before the fixture is attached to the cylindrical resistor, the pair of fixtures are positioned relative to each other. Is still necessary and workability is not good.

  Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to improve the workability of mounting, removing, or replacing a cylindrical resistor on a substrate.

In order to achieve the above object, one aspect of the cylindrical resistor attachment according to the present invention is a cylindrical resistor attachment for attaching a cylindrical resistor to a substrate, and a fixing portion fixed to the substrate, A pair of upright portions made of an elastic member and bent opposite to each other from both ends of the fixed portion; and a lower piece made of an elastic member and bent in a direction approaching each other from the ends of the pair of upright portions A pair of upper pieces folded back in a direction away from the end of the lower piece, inserted into the inside of the cylindrical resistor from both ends of the cylindrical resistor, and urged in a direction approaching each other. comprising a pair of support portions configured to the Jo resistor can sandwich, the said tubular resistor by the upper piece Prefecture and the lower piece of each said support portion is urged away from each other The fixing part is configured to support the container. Wherein the upstanding portion and the support portion is formed by bending a single plate-like member across, characterized by.
Another aspect of the cylindrical resistor attachment according to the present invention is a cylindrical resistor attachment for attaching the cylindrical resistor to the substrate, comprising a fixing portion fixed to the substrate, and an elastic member, A pair of upright portions bent from opposite ends of the fixed portion and an elastic member, and a lower piece bent in a direction approaching each other from the end of the pair of upright portions and the end of the pair of lower pieces It has a pair of upper pieces folded back in directions away from each other, inserted into the inside of the cylindrical resistor from both ends of the cylindrical resistor, and can be sandwiched by being urged toward each other A pair of support portions configured as described above, and the cylindrical resistor can be supported by urging the lower piece and the upper piece of each of the support portions away from each other. The fixing portion, the standing portion and the The lifting portion is formed by bending a linear member of one throughout, and wherein.

The cylindrical resistor mounting method according to the present invention is a method of mounting a cylindrical resistor on a substrate, and includes a fixing portion fixed to the substrate and an elastic member, and facing each other from both ends of the fixing portion. A pair of upright portions bent and a pair of elastic members , a lower piece bent in a direction approaching the end of the pair of upright portions, and a pair of folded back in a direction away from the end of the pair of lower pieces A pair of upper resistors, and are inserted into the cylindrical resistors from both ends of the cylindrical resistors and are biased in a direction approaching each other so as to sandwich the cylindrical resistors. A step of fixing the cylindrical resistor fixture having the support portion to the substrate, and then expanding the pair of the support portions in the direction away from each other and from both ends of the cylindrical resistor. Cylindrical resistance by inserting inside A step of mounting the tubular resistor to the fixture, the cylindrical resistor mounting method provided with the said by the upper piece Prefecture and the lower piece of each said support portion is urged away from each other It is comprised so that a cylindrical resistor can be supported, The said fixing | fixed part, the said standing part, and the said support part are formed by bending one plate-shaped member as a whole .

  According to the present invention, it is possible to improve the workability of attaching, detaching, or replacing the cylindrical resistor to the substrate.

[First Embodiment]
A first embodiment of a cylindrical resistor attachment according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a cylindrical resistor fixture according to the first embodiment of the present invention. FIG. 2 is a front view of the cylindrical resistor attachment according to the first embodiment of the present invention, and shows a state in which the cylindrical resistor is attached to a substrate. FIG. 3 is a side view of FIG. FIG. 4 is a front view of the cylindrical resistor attachment according to the first embodiment of the present invention, and shows the cylindrical resistor attachment in a state before and after attachment to the cylindrical resistor. FIG.

  First, the structure of the cylindrical resistor fixture 10 according to the present embodiment will be described with reference to FIG. The cylindrical resistor fixture 10 includes a fixed portion 20, an upright portion 30, and a support portion 40, and is formed by bending a single metal plate. This metal plate is a thin plate whose length is, for example, about three times the axial length of the cylindrical resistor 50 and whose width is smaller than the inner diameter (diameter) of the cylindrical resistor 50. This metal plate has elasticity and is made of, for example, spring steel.

  The fixed portion 20 is made of a metal plate whose length is approximately the same as the length of the cylindrical resistor 50. A through hole 21 is formed in the fixing portion 20 in order to fix the fixing portion 20 to the substrate 60 by screwing.

  The standing portion 30 is formed by bending a metal plate from both ends of the fixed portion 20. The pair of upright portions 30 are bent in the same direction with respect to the fixed portion 20 and face each other.

  The support portion 40 is formed by bending a metal plate from the end of the upright portion 30 (the end portion opposite to the fixed portion 20), and has a lower piece 41 and an upper piece 42. The pair of support portions 40 face each other.

  The pair of lower pieces 41 are formed by bending a metal plate in a direction approaching each other from the end of the upright portion 30 (inward of the cylindrical resistor attachment 10), and face each other. Further, the pair of upper pieces 42 bend the metal plate into a V shape in a direction away from the end of the lower piece 41 (the end opposite to the upright portion 30) (side of the cylindrical resistor fixture 10). And are opposed to each other. The lower piece 41 and the upper piece 42 have substantially the same length, and the adjacent lower piece 41 and upper piece 42 face each other.

  In order to obtain predetermined elasticity, the support portion 40 is formed with a through hole (notch portion 43) extending between the lower piece 41 and the upper piece 42 adjacent to each other.

  Next, the attachment state of the cylindrical resistor 50 using the cylindrical resistor attachment 10 according to this embodiment will be described with reference to FIGS. 2 and 3.

  The cylindrical resistor 50 is a cylindrical body having a main body portion 51, a terminal portion 52, and an insulator portion 53, and a hollow portion 54 penetrating both ends is formed inside. The main body 51 is a cylindrical body around which a resistance wire is wound around the inner periphery, and forms a part of the cavity 54. The terminal part 52 is disposed on the outer peripheral surface of the main body part and forms a terminal of the cylindrical resistor 50. The insulator portion 53 is an annular body made of an insulator such as ceramic, and is joined to both ends of the main body portion 51.

  The cylindrical resistor fixture 10 is fixed to the surface of the substrate 60. The board | substrate 60 here is a flame | frame of a circuit board, an electric equipment, etc., for example. The fixing portion 20 is fixed to the surface of the substrate 60 by inserting a screw 71 into the through hole 21 via a washer 72 and screwing it.

  A pair of support portions are inserted into the hollow portion 54 of the cylindrical resistor 50 from both ends of the cylindrical resistor 50. The cylindrical resistor 50 is supported by the inner edge 55 of the end portion (the insulator portion 53) being in contact with the side portion 44 of the lower piece 41 and the side portion 45 of the upper piece 42. The insulator 53 is provided to insulate the cylindrical resistor fixture 10 from the main body 51.

  Moreover, since the standing part 30 has elasticity, in the state after mounting | wearing, a pair of standing part 30 and a pair of support part 40 are urged | biased in the direction which mutually approaches. That is, as shown in FIG. 4, the angle θ <b> 2 formed between the fixed portion 20 and the standing portion 30 after mounting is larger than the angle θ <b> 1 formed between the fixing portion 20 and the standing portion 30 before mounting. Therefore, the cylindrical resistor 50 is sandwiched by the pair of support portions 40 from both ends thereof.

  Furthermore, since the support part 40 has elasticity, the lower piece 41 and the upper piece 42 adjacent to each other are urged away from each other in a state after being mounted. That is, as shown in FIG. 4, the angle θ4 formed by the lower piece 41 and the upper piece 42 after mounting is smaller than the angle θ1 formed by the lower piece 41 and the upper piece 42 before mounting. Therefore, the cylindrical resistor 50 is supported by a force acting in a direction in which the lower piece 41 and the upper piece 42 are separated from the inner edge thereof.

  Next, the attachment method of the cylindrical resistor 50 to the board | substrate 60 using the cylindrical resistor attachment 10 which concerns on this embodiment is demonstrated.

  First, the cylindrical resistor fixture 10 is fixed to the surface of the substrate 60. Thereafter, the pair of upright portions 30 and the pair of support portions 40 are spread away from each other (the side of the cylindrical resistor attachment), and the support portions 40 are inserted into the cavity portion 54 from both ends of the cylindrical resistor 50. Then, the cylindrical resistor 50 is attached to the cylindrical resistor fixture 10. In addition, after attaching the cylindrical resistor 50 to the cylindrical resistor attachment 10, the cylindrical resistor attachment 10 may be fixed to the surface of the substrate 60.

  A method for replacing the cylindrical resistor 50 when the cylindrical resistor mounting tool 10 according to the present embodiment is used will be described.

  The pair of upright portions 30 and the pair of support portions 40 are spread away in the direction away from each other (side of the tubular resistor attachment), and the tubular resistor 50 is removed from the tubular resistor attachment 10. Thereafter, a new cylindrical resistor 50 is mounted on the cylindrical resistor fixture 10.

  Hereinafter, the effect by the cylindrical resistor fixture 10 which concerns on this embodiment is demonstrated.

  If the cylindrical resistor fixture 10 according to the present embodiment is used, when the cylindrical resistor 50 is attached to the substrate 60, the cylindrical resistor fixture 10 is fixed to the substrate 60 and then the cylindrical resistor fixture 10. A cylindrical resistor 50 can be attached to the base. Therefore, in the case of the attachment work of the large cylindrical resistor 50, or in the case of the attachment work to a vertical substrate surface or the like, the cylindrical resistor attachment 10 to which the cylindrical resistor 50 is attached is provided. While supporting, it is not necessary to attach the cylindrical resistor fixture 10 to the substrate 60, and workability is improved. For the same reason, workability is improved when the cylindrical resistor 50 is removed from the substrate 60.

  In addition, when replacing the cylindrical resistor 50, the cylindrical resistor 50 can be removed from the cylindrical resistor fixture 10 without removing the cylindrical resistor fixture 10 from the substrate 60. Workability is improved, and work time and work cost can be reduced.

  Furthermore, since the fixing portion 20, the pair of upright portions 30, and the pair of support portions 40 are integrally formed, the positioning of the cylindrical resistor attachment 10 is easy, and workability is improved.

[Second Embodiment]
A second embodiment of the cylindrical resistor fixture according to the present invention will be described with reference to FIG. FIG. 5 is a perspective view of a cylindrical resistor fixture according to the second embodiment of the present invention. In addition, this embodiment is a modification of 1st Embodiment, Comprising: The same code | symbol is attached | subjected to the same part or similar part as 1st Embodiment, and duplication description is abbreviate | omitted.

  The cylindrical resistor fixture 10 according to the present embodiment is formed by bending one annular metal wire. This metal wire has a strength capable of withstanding the load of the cylindrical resistor 50.

  The fixed portion 20 is formed by a pair of metal wires extending substantially in parallel. The standing portion 30 is formed by bending a pair of metal wires forming the fixing portion 20 from both ends of the fixing portion 20. The fixing unit 20 is fixed to the substrate 60 using a fixing tool (not shown).

  The support portion 40 includes a lower piece 41, an upper piece 42, and a connecting portion 46. The lower piece 41 is formed by bending a pair of metal wires forming the upright portion 30 from the end of the upright portion 30 to the inside of the cylindrical resistor attachment 10. The upper piece 42 is formed by bending a pair of metal wires forming the lower piece 41 from the end of the lower piece 41 to the side of the cylindrical resistor fixture 10. The connecting portion 46 connects the ends of a pair of metal wires forming the upper piece 42.

  According to this embodiment, the usage-amount of the metal which comprises the cylindrical resistor attachment 10 can be suppressed, and cost can be reduced. Moreover, high elasticity can be obtained. The cylindrical resistor fixture 10 according to the present embodiment is particularly suitable for a fixture for a small cylindrical resistor 50.

[Other Embodiments]
The above embodiments are merely examples, and the present invention is not limited to these. For example, the features of the embodiments may be combined.

  In addition, as the material of the cylindrical resistor fixture 10 according to each of the above embodiments, an insulating material such as ceramic or plastic can be used as long as predetermined elasticity and strength can be obtained. In this case, the insulator 53 of the cylindrical resistor 50 is not necessary.

  Furthermore, the fixed part 20, the standing part 30, and the support part 40 do not have to be formed integrally from one member (metal plate or metal wire) or the like, but are formed integrally by joining individual members. Also good.

  For convenience of explanation, the terms such as the lower piece 41 and the upper piece 42 are used on the assumption that the surface of the substrate 60 is upward, but the substrate 60 is not necessarily upward, and the upper piece 42 is the lower piece. It is not necessarily above 41.

It is a perspective view of the cylindrical resistor attachment which concerns on the 1st Embodiment of this invention. It is a front view of the cylindrical resistor fixture which concerns on the 1st Embodiment of this invention, Comprising: It is a figure which shows the state which attached the cylindrical resistor to the board | substrate. FIG. 3 is a side view of FIG. 2. It is a front view of the cylindrical resistor attachment which concerns on the 1st Embodiment of this invention, Comprising: It is a figure which shows the cylindrical resistor attachment in the state before mounting | wearing to a cylindrical resistor, and the state after mounting | wearing. . It is a perspective view of the cylindrical resistor fixture which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Cylindrical resistor attachment, 20 ... Fixed part, 21 ... Through-hole, 30 ... Standing part, 40 ... Support part, 41 ... Lower piece, 42 ... Upper piece, 43 ... Notch part, 44 ... Lower piece side 45, side part of upper piece, 46 ... connecting part, 50 ... cylindrical resistor, 51 ... main body part, 52 ... terminal part, 53 ... insulator part, 54 ... hollow part, 55 ... end of cylindrical resistor 60 ... substrate, 71 ... screw, 72 ... washer, .theta.1 ... angle formed between the fixed portion and the upright portion before mounting the cylindrical resistor, .theta.2 ... fixed portion and upright after the cylindrical resistor is mounted. The angle between the lower piece and the upper piece before mounting the cylindrical resistor, θ4 the angle between the lower piece and the upper piece after mounting the cylindrical resistor

Claims (4)

A cylindrical resistor attachment for attaching a cylindrical resistor to a substrate,
A fixed part fixed to the substrate;
A pair of upright portions made of an elastic member and bent opposite to each other from both ends of the fixed portion;
A cylindrical resistor comprising a lower piece made of an elastic member and bent in a direction approaching each other from the ends of the pair of upright portions and a pair of upper pieces folded back in a direction away from the ends of the pair of lower pieces. A pair of support portions that are inserted into the inside of the cylindrical resistor from both ends of the vessel and configured to be able to sandwich the cylindrical resistor by being biased toward each other;
Equipped with,
Each of the support portions is configured to be able to support the cylindrical resistor by being biased in a direction in which the lower piece and the upper piece are separated from each other,
The fixing part, the standing part and the support part are formed by bending a single plate-like member as a whole;
A cylindrical resistor fitting characterized by the above. A notch extending from the lower piece to the upper piece is formed,
The cylindrical resistor attachment according to claim 1 characterized by these. A cylindrical resistor attachment for attaching a cylindrical resistor to a substrate,
A fixed part fixed to the substrate;
A pair of upright portions made of an elastic member and bent opposite to each other from both ends of the fixed portion;
A cylindrical resistor comprising a lower piece made of an elastic member and bent in a direction approaching each other from the ends of the pair of upright portions and a pair of upper pieces folded back in a direction away from the ends of the pair of lower pieces. A pair of support portions that are inserted into the inside of the cylindrical resistor from both ends of the vessel and configured to be able to sandwich the cylindrical resistor by being biased toward each other;
Comprising
Each of the support portions is configured to be able to support the cylindrical resistor by being biased in a direction in which the lower piece and the upper piece are separated from each other,
The fixed portion, the standing portion and the support portion are formed by bending one linear member as a whole;
A cylindrical resistor fitting characterized by the above .   A method of attaching a cylindrical resistor to a substrate,
  A fixed portion fixed to the substrate, a pair of upright portions made of an elastic member and bent opposite to each other from both ends of the fixed portion, and an elastic member bent in a direction approaching each other from the end of the pair of upright portions A pair of upper pieces folded back in directions away from the ends of the pair of lower pieces, and inserted into the inside of the cylindrical resistor from both ends of the cylindrical resistor in a direction approaching each other. A step of fixing a cylindrical resistor fixture including a pair of support portions configured to be able to sandwich the cylindrical resistor by being biased to the substrate;
  Thereafter, the step of attaching the cylindrical resistor to the cylindrical resistor mounting device by spreading the pair of support portions away from each other and inserting the support portions into the cylindrical resistor from both ends of the cylindrical resistor. When,
  In a cylindrical resistor mounting method comprising:
  Each of the support portions is configured to be able to support the cylindrical resistor by being biased in a direction in which the lower piece and the upper piece are separated from each other,
  The fixing part, the standing part and the support part are formed by bending a single plate-like member as a whole;
  The cylindrical resistor attachment method characterized by this.

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