JP2003273544A - Electrode mounting structure and case of electric apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily arrange an electrode on a case without using insertion molding. <P>SOLUTION: Since an electrode 12 is inserted into a groove between an external wall 26 and a partition plate 28, and an electrode 14 is kept in a state where it is sandwiched between the plate 28 and a holding member 22, there is no possibility that a main body member 20 is not deformed due to a difference in thermal expansion between the electrodes 12, 14 and a synthetic resin in molding and cooling in comparison with a case that the electrodes 12, 14 are integrally fixed by insertion molding, and the dimension accuracy and shape accuracy can be improved. Since there is no risk that the electrodes 12, 14 are not deformed due to an injection pressure and a distance D can be secured with higher accuracy by the portion 28, a desired insulation performance can be obtained. Since the electrodes 12, 14 are each pressurized by the member 20 to be integrally fixed, troubles caused by looseness or bending can be prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case of an electric device, and more particularly to an electrode mounting structure for mounting a plate-shaped electrode on the case.

[0002]

2. Description of the Related Art For example, a DC-DC converter, a DC-A
2. Description of the Related Art Various electric devices are known in which predetermined electric parts are assembled and electric power is supplied, such as a device for converting electric power such as a C converter. Such an electric device is generally provided with a case made of synthetic resin, and plate electrodes such as contact points of switches are partially embedded in the case made of synthetic resin by insert molding so that the case is It is usually arranged so as to be integrated with each other. FIG. 11 shows a case 10 made of such a synthetic resin.
10 is a cross-sectional view showing a portion in which a pair of electrodes 102 and 104 are integrally embedded and fixed by insert molding in an example of No. 0.

[0003]

However, when the electrodes are integrally embedded and fixed by insert molding as described above, there are the following problems. (a) Due to the difference in coefficient of thermal expansion between the electrode and the synthetic resin material, it deforms during molding and cooling, as shown in FIG. 12, for example, and it is impossible to secure the positive dimension of the product. Therefore, it is necessary to design the mold in consideration of the deformation, which increases the time and cost required for production preparation. (b) Due to the injection pressure during molding, the electrodes may be deformed in the mold and the electrode gap may not be ensured, or the resin material may escape (the resin material may leak to the exposed portion of the electrode). For this reason, it is necessary to devise, for example, to provide a spacer 106 made of an insulator as shown in FIG. 11 or to position the electrode with a mold. (c) Since the electrode is set in the mold, the shape of the electrode is restricted due to the undercut and the mold opening method. (d) The electrode surface is contaminated by gas and oil generated in the mold during molding of the synthetic resin material, so cleaning is required. (e) Since the number of parts such as the above-mentioned spacers and the like is large, it is necessary to set them in a mold and to assemble the spacers and the like in advance, which is a constraint on cost reduction. (f) Since the electrode and the synthetic resin portion are mechanically partially fixed, the resin electrode fixing portion may be damaged and the electrode may come off the resin case. (g) A minute gap may be formed between the electrode and the resin case, and when vibration welding of aluminum wire or the like, the electrode may bend and a defect such as welding failure may occur.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to easily dispose an electrode in a case without using insert molding.

[0005]

In order to achieve the above object, the first invention is an electrode mounting structure for mounting a plate-shaped electrode on a predetermined member, comprising: (a) a main body member to which the electrode is mounted; , (B) a holding member that is configured separately from the main body member and is integrally fixed to the main body member,
(c) It is characterized in that the electrode is held by being sandwiched between the main body member and the holding member.

A second invention is characterized in that, in the electrode mounting structure of the first invention, the holding member is integrally fixed by sandwiching the electrode with the main body member.

According to a third invention, in the electrode mounting structure of the first invention or the second invention, a partition plate portion having a wall thickness corresponding to the interval is provided in a portion where a plurality of electrodes are arranged at a predetermined interval. Is integrally provided on the main body member, and electrodes are arranged on both sides of the partition plate portion.

According to a fourth aspect of the present invention, in the electrode mounting structure according to the first or second aspect of the invention, in a portion where a plurality of electrodes are arranged at a predetermined interval, a holding member having a wall thickness corresponding to the interval is provided. One electrode is held between the main body member and the other electrode, and the other electrode is fixed to the opposite side of the holding member.

A fifth aspect of the present invention is the electrode mounting structure according to any of the first to fourth aspects, wherein a positioning groove into which the electrode is fitted is provided in either one of the main body member and the holding member. It is characterized by being

According to a sixth aspect of the present invention, in the electrode mounting structure of the fifth aspect, the positioning groove is provided in the main body member and has an inverted trapezoidal shape whose width is wider toward the opening side. The holding member is fitted into the pair of inner wall surfaces of the positioning groove so that the electrode is held in the positioning groove.

A seventh invention is characterized in that, in the electrode mounting structure according to any one of the first invention to the sixth invention, the holding member is provided with an additional electrode different from the electrode.

An eighth invention is the electrode mounting structure according to any one of the first to seventh inventions, wherein the main body member is a case of an electric device to which a predetermined electric component is assembled in addition to the electrode. And

A ninth aspect of the invention is a case of an electric device in which plate-shaped electrodes are arranged and predetermined electric parts are assembled, wherein the electrodes are attached according to the electrode attachment structure of the eighth aspect. Is characterized by.

[0014]

In such an electrode mounting structure, since the electrode is sandwiched and held between the main body member and the holding member, it is compared with the case where the electrode is integrally fixed by insert molding. As a result, there is no risk that the body member (such as the case of an electric device) will be deformed during molding and cooling due to the difference in thermal expansion from the electrodes or the electrodes will be deformed by injection pressure, and the spacing between multiple electrodes can be secured with high dimensional accuracy. it can. In addition, since the attachment strength of the electrode, the strength of the holding member, etc. can be set as appropriate by the shape and fixing form of the holding member, it is possible to prevent the electrode from coming off the main body member due to damage to the holding member, By pressing and fixing, vibration welding of aluminum wire or the like can be always performed well. Further, restrictions on the electrode shape due to mold opening and the like are eliminated, and the degree of freedom in shape design is increased, and the chances of the electrodes becoming dirty are reduced, and post-processing such as cleaning is reduced or unnecessary.

On the other hand, the main body member of the present invention does not necessarily have to be made of a synthetic resin material, but even when the main body member is made of a synthetic resin material, insert molding is not necessarily required, so that an accessory such as a spacer is attached. No need for pre-assembly, simplifying the molding work and reducing costs, and because there is no risk of deformation during molding and cooling due to the difference in thermal expansion from the electrode, the mold design becomes easier. The time and cost required for production preparation are reduced. Further, by adopting a holding member having high rigidity, it is possible to correct the deformation of the main body member due to molding shrinkage or the like, or prevent the deformation due to aging, etc., and to ensure a predetermined shape accuracy. .

In the second invention, since the holding member presses the electrode between the main body member and integrally fixes it, a problem caused by rattling or deformation of the electrode, for example, vibration of an aluminum wire or the like. Poor welding can be prevented.

According to the third aspect of the invention, a partition plate portion having a predetermined thickness is provided in a portion where a plurality of electrodes are arranged at predetermined intervals, and electrodes are arranged on both sides of the partition plate portion. ,
In the fourth aspect of the invention, since the electrodes are arranged on both sides of the holding member having a predetermined thickness, the electrode interval can be secured with high accuracy in any case.

In the fifth aspect of the invention, since the positioning groove is provided in either one of the main body member and the holding member so that the electrode can be fitted therein, the positioning of the electrode is facilitated and the gap between the main body member and the main body member is facilitated. The work of fixing the holding member with the electrode sandwiched can be performed easily and quickly.

According to the sixth aspect of the invention, the positioning groove provided in the main body member has an inverted trapezoidal shape, and the holding member is fitted into the pair of inner wall surfaces of the positioning groove so as to be in close contact with the positioning groove. Since the electrode is held in the positioning groove, the gel-like material such as the antioxidant applied to the electrode and other fluids are prevented from flowing out, and molding shrinkage etc. starts from the thin portion of the positioning groove. It is also possible to correct the deformation caused in the main body member.

In the seventh aspect of the invention, since the holding member for holding the electrode between itself and the main body member is further provided with the additional electrode,
More complex electric circuits can be formed.

The eighth and ninth inventions relate to an electrode mounting structure for a case of an electric device and the case itself, and substantially the same effects as those of the first to seventh inventions can be obtained.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is preferably applied to an electrode mounting structure for a case of an electric device for supplying electric power, which has a relatively high voltage or current value, such as a device for converting electric power. It can also be applied to the electrode mounting structure for the member. The electrodes may be anything that supplies electricity, such as one that supplies a predetermined electric power or one that transmits an electric signal.

The main body member and the holding member are made of, for example, an insulator made of synthetic resin having a low electric conductivity, and it is desirable that they are integrally molded by injection molding or the like. However, other synthetic resin materials may be used, or materials other than synthetic resin may be used. The material can also be adopted. In the case of integrally molding with a synthetic resin material, it is possible to insert-mold the reinforcing member and some electrodes.

As a mode of integrally fixing the holding member to the main body member, various fixing means such as fastening means such as screws, bolts and nuts, fixing means such as adhesive, etc. can be adopted, but such fixing means It is also possible to integrally fix them by using a tight fit or by engaging elastically deformable claws provided integrally without using. The electrodes can also be fixed to the main body member by a fixing means such as an adhesive together with the holding member.

Regarding the manner of holding the electrode by the holding member and the main body member, it is desirable that they are integrally fixed so as to be squeezed and pressed against the main body member as in the second aspect of the invention. Various modes are possible, such as displaceably holding and fixing to the main body member with an adhesive without pinching.

When a plurality of electrodes are provided as in the third and fourth inventions, it is not always necessary to hold all the electrodes by sandwiching them between the main body member and the holding member, and at least one of them. The part may be held by being sandwiched between the main body member and the holding member. In the third invention and the fourth invention,
The electrodes are arranged at a predetermined interval by the partition plate portion or the holding member of the main body member, but the electrode interval can be secured by using an insulating spacer or the like.

In the fifth invention, the positioning groove is provided in either one of the main body member and the holding member, but the positioning groove is not necessarily required in carrying out the other inventions, and the positioning groove is provided in both the main body member and the holding member. It can also be provided. It is desirable that the width of the positioning groove be substantially the same as the width of the electrode so that the electrode does not easily come off, but it may be wider than the width of the electrode and may have a gap.

[0028]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a view showing a portion to which a pair of electrodes 12 and 14 are fixed in a case 10 of an electric device to which the present invention is applied, FIG. 1A is a plan view in which a holding member 22 is omitted, and FIG. () Is a BB sectional view in (a). This electric device is a device to which a DC-DC converter, a DC-AC converter, and the like (not shown) are assembled as electric parts, and which supplies direct current or alternating current power. In addition, the power supply units 12s and 14s are provided.

The case 10 is constructed to have a main body member 20 and a holding member 22, and these main body members 20
The holding member 22 and the holding member 22 are both made of a synthetic resin insulator and integrally formed by injection molding or the like. Body member 20
Is provided with an outer wall portion 26 that rises substantially vertically from the bottom portion 24, and a partition plate portion 28 that is provided substantially parallel to the outer wall portion 26 at a predetermined distance from the outer wall portion 26. The outer wall portion 26 and the partition plate portion 28 are separated from each other. The electrode 12 is fitted in between, and the power supply part 12s projects from the partition plate part 28 to the outside. The distance between the outer wall portion 26 and the partition plate portion 28 is approximately the same as the plate thickness of the electrode 12, and both surfaces of the electrode 12 are brought into close contact with the outer wall portion 26 and the partition plate portion 28, respectively.

The electrode 14 has a substantially L-shaped cross section and is positioned by being fitted into a positioning groove 24g provided in the bottom portion 24 and a positioning groove 28g provided in the partition plate portion 28, respectively. In such a state, the holding member 22 is integrated with the outer wall portion 26 by fixing means such as bolts and nuts (not shown) so that the holding member 22 presses the electrodes 12, 14 and the partition plate portion 28 with the outer wall portion 26 in the left-right direction of FIG. Fixed. As a result, the electrode 12 is clamped between the outer wall portion 26 and the partition plate portion 28, and the electrode 14 is clamped between the partition plate portion 28 and the holding member 22, which are integrally fixed to the main body member 20. To be done. If necessary, an adhesive may be used together to fix the electrodes 12 and 14 to the main body member 20. Positioning groove 2
The width dimension of 4 g and 28 g is substantially the same as or slightly larger than the width dimension of the electrode 14, and the groove depth is substantially the same as or slightly smaller than the plate thickness of the electrode 14, and is clamped by the holding member 22. It is like this. The thickness of the portion of the partition plate portion 28 where the positioning groove 28g is provided, that is, both electrodes 12,
The interval D of 14 is set so that the electrodes 12 and 14 are in an insulating state. Further, the holding member 22 has an L-shape so that the electrodes 12 and 14 can be positioned from above, and the power supply unit 14 of the electrode 14 can be positioned.
s projects from the holding member 22 to the outside.

In such a case 10, the electrode 1
2 is inserted into the groove between the outer wall portion 26 and the partition plate portion 28, and the electrode 14 is held in a state of being sandwiched between the partition plate portion 28 and the holding member 22. 1
As compared with the case where 4 is integrally fixed to the main body member 20 by insert molding, the main body member 20 is not likely to be deformed at the time of molding and cooling due to the difference in thermal expansion between the electrodes 12 and 14 and the synthetic resin. Dimensional accuracy and shape accuracy are improved. In addition, there is no risk that the electrodes 12, 14 will be deformed by the injection pressure, and the partition plate portion 28 allows the electrodes 1 and 14 to have high dimensional accuracy.
Since the distance D of 2 and 14 is secured, desired insulation performance can be obtained. The insulation performance is determined based on, for example, an insulation distance d1 across an insulator 30 such as a resin, a creepage distance d2 along the surface of the insulator 30 and a space distance d3 across an air layer as shown in FIG. The distance D in this embodiment is the insulation distance d.
Equivalent to 1.

Further, since the attachment strength of the electrodes 12 and 14 and the strength of the holding member 22 can be appropriately set by the shape of the holding member 22 and the fixing means, the electrodes 12 and 14 are separated from the main body member 20 due to damage of the holding member 22 or the like. It is possible to reliably prevent the electrodes 12 and 14 from coming off, and since the electrodes 12 and 14 are pressed and integrally fixed to the main body member 20, problems caused by rattling or bending deformation of the electrodes 12 and 14 are caused. , For example, a poor welding of vibration welding of an aluminum wire or the like is favorably prevented.

Further, the restrictions on the shape of the electrodes 12 and 14 due to undercutting and the mold opening method are eliminated, and the degree of freedom in the shape design is increased, and the chances of the electrodes 12 and 14 becoming dirty are reduced so that the electrodes 12 and 14 can be cleaned after cleaning. Processing is reduced or unnecessary,
Manufacturing costs are reduced.

Although the main body member 20 is made of synthetic resin material in this embodiment, insert molding is not necessarily required, so that pre-assembling of accessory parts such as spacers is not required and the molding work is simplified. As a result, the manufacturing cost is reduced, and since there is no risk of deformation during molding and cooling due to the difference in thermal expansion between the electrodes 12 and 14, the die design is facilitated and the time and cost required for production preparation are reduced.

Further, by adopting the holding member 22 having high rigidity, the deformation of the main body member 20 due to the molding shrinkage or the like is corrected and the deformation due to the change with time is prevented.
It is possible to ensure a predetermined shape accuracy.

Positioning grooves 24g and 28g are provided in the bottom portion 24 and the partition plate portion 28 of the main body member 20,
Since the electrode 14 is fitted, the work of disposing the electrode 14 on the main body member 20 and fixing it with the holding member 22 can be performed easily and quickly.

Next, another embodiment of the present invention will be described. Note that, in the following embodiments, portions substantially common to the above-mentioned embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.

The case 32 shown in FIG. 3 has the partition plate portion 28.
A spacer 34 made of an insulator prepared separately is used instead of the above, and a holding member 36 is used separately from the holding member 22 to position the electrode 14 in the positioning groove 24 of the bottom portion 24.
It is pressed into the g and fixed integrally. The spacer 34 is a thin plate material having the same plate thickness as the spacing D, is fitted in the mounting groove 38 provided in the main body member 20, and is fixed together with the holding member 22 by fixing means such as bolts and nuts. It is designed to be integrally fixed to. If necessary, a positioning groove may be provided in the spacer 34 to position the electrode 14, or a positioning groove may be provided in the holding member 22.

As is clear from FIG. 3 (b) showing the BB cross section of FIG. 3 (a), the positioning groove 24g has an inverted trapezoidal shape whose width is wider toward the opening side and the holding member. 36
Also has an inverted trapezoidal shape corresponding to the positioning groove 24g, and the pair of side surfaces of the holding member 36 has the positioning groove 24g.
Are fitted into the pair of inner wall surfaces so as to be in close contact with each other, and are integrally fixed to the bottom portion 24 by fixing means such as bolts and nuts not shown, so that the electrode 14 is pressed against the bottom surface of the positioning groove 24g to be integrated. It is designed to be fixed. Further, since the holding member 36 is inserted into the positioning groove 24g in a wedge shape and fixed integrally as described above, the holding member 36 is generated in the main body member 20 due to molding shrinkage or the like starting from the thin portion where the positioning groove 24g is provided. Deformation is corrected. 3A is a sectional view corresponding to FIG. 1B, and FIG. 3B is an enlarged view of the BB section in FIG.

In this embodiment, in addition to the same effect as the above-mentioned embodiment, the holding member 36 is fitted so as to be in close contact with the pair of inner wall surfaces of the inverted trapezoidal positioning groove 24g. A gel-like material such as an antioxidant applied to 14 and other fluids are prevented from flowing out from the positioning groove 24g, and deformation caused in the main body member 20 due to molding shrinkage or the like from the thin portion of the positioning groove 24g as a starting point. Is corrected, and the dimensional accuracy and shape accuracy of the case 32 are improved. Positioning groove 24g for holding member 36 with adhesive
If it adheres to, it is possible to more effectively prevent the outflow and deformation of the fluid such as the antioxidant.

In the case 40 of FIG. 4, an electrode 48 bent in a crank shape along the wall portion 44 and the bottom portion 46 of the main body member 42 is sandwiched between the main body member 42 and a rectangular parallelepiped holding member 50. The electrode 48 is integrally fixed to the main body member 42 by an adhesive agent, and the holding member 50 is also integrally fixed to the main body member 42 by an adhesive agent as a fixing means. Has been done. Further, the wall portion 44 and the bottom portion 46 of the main body member 42 are provided with positioning grooves 44g and 46g having a width dimension and a depth dimension that are substantially the same as the width dimension and the plate thickness of the electrode 48, respectively. Positioning grooves 44g, 46
It is adapted to be fixed while being fitted in g. Also in this case, the same effect as that of the first embodiment can be obtained.

In the case 52 shown in FIG. 5, the electrode 56 is sandwiched between the main body member 58 and the holding member 54 having a partition wall 54w having the same thickness as the predetermined distance D, and the partition wall 54w. The electrode 60 is integrally fixed to the opposite side of the electrode 56 with the electrode 56 interposed therebetween, and the distance D between the pair of electrodes 56 and 60 is determined by the partition wall 5 of the holding member 54.
4w ensures high dimensional accuracy. Body member 5
The contact surfaces of the electrode 8, the electrode 56, the holding member 54, and the electrode 60 are integrally fixed by an adhesive as a fixing unit, and the partition wall 54w is sandwiched between the holding member 54. A pair of positioning grooves 54a and 54b are provided. The width dimensions of the positioning grooves 54a and 54b are substantially the same as the width dimensions of the electrodes 56 and 60, respectively, and the depth dimension of the positioning groove 54a is substantially the same as the plate thickness of the electrode 56. Also in this case, the same effect as that of the first embodiment can be obtained.

FIG. 6 is a diagram showing an overall schematic structure of the case 62, which is an exploded perspective view before assembly, in which a main body member 64 and a holding member 66 made of a synthetic resin insulator, a pair of electrodes 68 and 70 are provided. The body member 64 is provided with a grid-shaped positioning groove 64g corresponding to the electrodes 68 and 70, and the holding member 66 is provided with a grid-shaped crosspiece 66s corresponding to the electrodes 68 and 70. The electrode 6 in the positioning groove 64g of the main body member 64.
After inserting and setting 8, 70, the holding member 66 is superposed from above and integrally fixed to the main body member 64 by fixing means such as bolts and nuts not shown. As a result, the electrodes 68 and 70 are partially clamped between the crosspiece 66s and the main body member 64 and integrally fixed to the main body member 64, and the same effect as that of the above-described embodiment can be obtained.

Incidentally, in order to secure the insulating state of the electrodes 68 and 70, a separate spacer or the like can be interposed if necessary, and further electrodes or the like can be arranged on the holding member 66 to make it more complicated. It is also possible to form an electric circuit. Further, the holding member 66 may be fitted and fixed to the main body member 64 without using fixing means such as bolts and nuts.

FIG. 7 is a diagram showing an overall schematic configuration of the case 72, which is an exploded perspective view before assembly, in which a main body member 74 made of an insulating material of synthetic resin, a pair of first holding members 76, and an additional member. Many second holding members 80 provided with electrodes 78
And a large number of electrodes 82, and the first holding member 76
8 is integrally fixed to the main body member 74 by a fixing means such as an adhesive so as to press and fix the end portion of the electrode 82 on the main body member 74 as shown in FIG. Similarly, as shown in FIG. 8, the second holding member 80 has its both ends integrated with the pair of first holding members 76 by an adhesive agent or the like in a state where the electrode 82 is pressed and fixed onto the main body member 74. It is designed to be fixed. It should be noted that a separate spacer or the like is interposed as necessary to ensure the insulating state between the electrodes 82.

In this embodiment, in addition to the same effect as the above-mentioned embodiment, the second holding member 80 having the additional electrode 78 is used, so that a more complicated electric circuit can be formed. Further, since the holding member that presses and fixes the electrode 82 to the main body member 74 is divided into a pair of first holding members 76 and a large number of second holding members 80,
The shape of each holding member 76, 80 is simple, and the degree of freedom in shape design is high.

In the embodiment of FIG. 9, the first holding member 76 of the case 72 of FIG. 7 is omitted, while the mounting portion 84 larger than the width dimension of the electrode 82 is provided at the end of the predetermined second holding member 80.
Is integrally provided, and the mounting portion 84 is integrally fixed to the main body member 74 by a fixing means such as an adhesive.
Since the first holding member 76 is eliminated, the number of parts is reduced and the manufacturing cost is reduced. The second holding member 80 that does not include the attachment portion 84 is integrally fixed to the predetermined electrode 82 with, for example, an adhesive agent.

In the embodiment of FIG. 10, the mounting portion 84 is formed as a separate body to form a mounting member 86, and the mounting member 86 is integrally fixed to the main body member 74 by a fixing means such as an adhesive. While the electrode 82 is fixed to the main body member 74, the second holding member 80 is divided for each additional electrode 78 and fixed to the electrode 82 with an adhesive or the like in advance, and the shape of the mounting member 86 is simple. The size is reduced, the degree of freedom in shape design is further increased, and the overall weight can be reduced. The mounting member 86 corresponds to a holding member.

Although the embodiments of the present invention have been described in detail with reference to the drawings, these are merely embodiments, and the present invention includes various modifications and improvements based on the knowledge of those skilled in the art. Can be implemented in.

[Brief description of drawings]

FIG. 1 is a diagram showing an electrode mounting structure according to an embodiment of the present invention, in which (a) is a plan view in which a holding member is omitted, and (b) is B of (a).
It is a -B sectional view.

FIG. 2 is a diagram illustrating insulation performance of a pair of electrodes.

FIG. 3 is a diagram showing another embodiment of the present invention, in which FIG.
(b) is a cross-sectional view corresponding to (b), and (b) is an enlarged view of the BB cross section in (a).

FIG. 4 is a sectional view showing still another embodiment of the present invention.

FIG. 5 is a sectional view showing still another embodiment of the present invention.

FIG. 6 is a diagram illustrating an example of a case of an electric device including the electrode mounting structure of the present invention, and is an exploded perspective view before assembly.

FIG. 7 is a view for explaining another example of the case of the electric device provided with the electrode mounting structure of the present invention, and is an exploded perspective view before assembly.

8 is a cross-sectional view showing an electrode mounting portion of the embodiment of FIG.

FIG. 9 is a view for explaining still another example of the case of the electric device provided with the electrode mounting structure of the present invention, and is an exploded perspective view before assembly.

FIG. 10 is a view for explaining still another example of the case of the electric device provided with the electrode mounting structure of the present invention, and is an exploded perspective view before assembly.

FIG. 11 is a sectional view showing an example of a conventional electrode mounting structure.

FIG. 12 is a cross-sectional view showing a state in which a case of a conventional electric device is deformed due to a difference in thermal expansion during molding.

[Explanation of symbols]

10, 32, 40, 52, 62, 72: Case 1
2, 14, 48, 56, 60, 68, 70, 82: electrodes 20, 42, 58, 64, 74: body members 22, 3
6, 50, 54:66: holding member 24g, 28g,
44g, 46g, 54a, 64g: Positioning groove 2
8: Partition plate portion 76: First holding member (holding member)
78: Additional electrode 80: Second holding member (holding member)
86: Mounting member (holding member) D: Interval

Continued front page    (72) Inventor Hideki Agata             4-50 Hosoya-cho, Toyota-shi, Aichi Toyota Tetsudo             Within Kou Co., Ltd. (72) Inventor Yoshihide Arai             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 4E353 AA05 BB02 DD05 GG16                 5G052 AA11 AA15 HA01 HB05                 5H007 HA03 HA04 HA07                 5H730 ZZ01 ZZ05 ZZ12

Claims (9)

[Claims] 1. An electrode mounting structure for mounting a plate-shaped electrode on a predetermined member, comprising: a main body member to which the electrode is attached; and a body separate from the main body member and integrally fixed to the main body member. And a holding member for holding the electrode between the main body member and the holding member. 2. The electrode mounting structure according to claim 1, wherein the holding member clamps the electrode with the main body member to integrally fix the electrode. 3. A partition plate portion having a wall thickness corresponding to the interval is integrally provided on the main body member at a portion where a plurality of electrodes are arranged at a predetermined interval, and both sides of the partition plate portion are provided. The electrode mounting structure according to claim 1 or 2, wherein the electrode is provided in the electrode. 4. In a portion where a plurality of electrodes are arranged with a predetermined gap, one electrode is held between the main body member and a holding member having a wall thickness corresponding to the gap, The electrode mounting structure according to claim 1 or 2, wherein another electrode is fixed to the opposite side of the electrode. 5. The positioning groove into which the electrode is fitted is provided in either one of the main body member and the holding member.
The electrode mounting structure according to the item. 6. The positioning groove is provided in the main body member and has an inverted trapezoidal shape whose width is wider toward the opening side. The inverted trapezoidal holding member has a pair of inner wall surfaces of the positioning groove. The electrode mounting structure according to claim 5, wherein the electrode is held in the positioning groove by being fitted so as to be in close contact with the electrode. 7. The holding member is provided with an additional electrode different from the electrode.
The electrode mounting structure according to any one of 1. 8. The electrode mounting structure according to claim 1, wherein the main body member is a case of an electric device to which a predetermined electric component is assembled in addition to the electrode. 9. A case of an electric device in which plate-shaped electrodes are arranged and predetermined electric parts are assembled, wherein the electrodes are attached in accordance with the electrode attachment structure according to claim 8. Characteristic electric device case.