JPH0579935U - Fixed structure of capacitor - Google Patents

Abstract

(57) [Abstract] [Purpose] To realize a capacitor fixed structure with high voltage resistance and vibration resistance. [Structure] In the capacitor bank 1, in the capacitor sealing portion side fixing hole 111 of the capacitor mounting plate 11,
The sealing portion side of the capacitor 2 is inserted through a resin-made capacitor sealing portion side receiving body 3, and the bottom surface side thereof is a projecting portion 4 of a resin condenser bottom surface side receiving body 4.
It is supported by a mounting auxiliary plate 12 via 8. Here, the flange-shaped axial positioning protrusion 38 of the capacitor sealing portion side receiver 3 is in contact with the capacitor mounting plate 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for fixing a capacitor to a capacitor mounting body such as a power supply device, and particularly to a structure for fixing a large capacitor such as a screw terminal type aluminum electrolytic capacitor.

[0002]

[Prior Art]

 Of the various types of capacitors, large capacitors, such as screw terminal type aluminum electrolytic capacitors, have a large weight, and if they are fixed to the metal capacitor mounting body of the power supply unit, they have low vibration resistance. It is fixed to the capacitor mount via a metal band that is fixed to the side surface.

[0002]

[Problems to be solved by the device]

 However, when a capacitor is attached using a metal band, the insulation between the band and the capacitor is ensured by the thin insulation tube coated on the side surface of the capacitor, so the insulation tube If the battery is damaged, there is a problem that the withstand voltage of the power supply device itself is lowered. Therefore, it is also possible to adopt a capacitor fixing structure that uses a resin band instead of the metal band, or a capacitor fixing structure that uses a resin capacitor mount instead of the metal capacitor mount. Although investigations have been made, the resin band and the resin capacitor mounting body are both unsuitable for applications that require high vibration resistance because their strength is low both initially and over time. is there.

In view of the above problems, an object of the present invention is to attach a sealing portion side of a capacitor to a metallic capacitor mounting body through an insulating fixing auxiliary member, while at the same time, to a bottom surface of the capacitor. By supporting the side with an attachment auxiliary body, it is intended to realize a capacitor fixing structure having high withstand voltage and vibration resistance.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the means taken in the capacitor fixing structure according to the present invention is such that the sealing portion side of the capacitor is mounted from the opening on one end side and the terminal of the capacitor projects from the terminal hole on the other end side. The insulative capacitor sealing part side receiver is inserted into the capacitor sealing part side fixing part opened in the metal capacitor mounting body with an opening shape that allows the other end side of this capacitor sealing part side receptor to be inserted and removed. In this state, the bottom surface side of the capacitor is supported by the capacitor bottom surface side fixing part of the mounting auxiliary body, and the mounting position in the axial direction of the capacitor with respect to the capacitor mounting body is a predetermined position from the other end of the capacitor sealing part side receptor. At the position, it protrudes from the outer peripheral side surface toward the outer peripheral side, and the capacitor mounting body around the condenser sealing side fixed part Contact, is that which is defined by the axial positioning projection portion defining an insertion length of the capacitor sealing portion receptors for capacitor sealing part side fixing part. That is, the bottom side of the capacitor is supported by the mounting auxiliary body with the sealing part side of the capacitor being inserted into the fixing part of the capacitor sealing part side through the insulating fixing auxiliary member (capacitor sealing part side receiver). And In the present proposal, the metal capacitor mounting body includes not only the case where the whole body is made of metal, but also the case where only the main part is made of metal.

Further, for the purpose of making the mounting auxiliary body also made of metal, the bottom surface side of the capacitor is attached to the bottom surface side of the capacitor through an insulating capacitor bottom surface side receptor which is mounted from the opening on one end side. It is preferably supported by a fixed portion on the bottom surface side of the capacitor of the body. In this case, the capacitor sealing side fixed part is opened with an opening shape that allows the other end side of the capacitor bottom side receptor to be inserted into and removed from the mounting auxiliary body, and the capacitor bottom side receptor is It has an overhanging part that projects from the outer peripheral side surface toward the outer peripheral side at a predetermined position from the one end side and comes into contact with the mounting assisting body around the capacitor bottom side fixed part. Is supporting the bottom side of the capacitor. That is, the bottom side of the capacitor is also in a state of being inserted into the capacitor sealing part side fixing part through the insulating fixing auxiliary member (capacitor sealing part side receptor). Here, in order to enhance the heat dissipation from the bottom surface of the capacitor, the capacitor bottom surface receptor has a window on the other end side end surface of which a part of the bottom surface part of the capacitor attached should be opened. It is preferable to provide an opening. Furthermore, the capacitor seal side and the capacitor bottom side are designed so that the edge distance between the capacitor seal side and capacitor bottom side and the metal capacitor mount and metal mounting aid can be extended substantially. At least one side of the side receptor is preferably provided with irregularities around the outer peripheral side surface portion thereof.

Further, in the present invention, the terminal hole of the capacitor-sealing-portion-side receptor has an opening shape that can be engaged with two terminals of the capacitor. It is preferable that the mounting position of the capacitor with respect to the body in the axial direction is defined.

Further, the outer peripheral side surface portion on the other end side of the capacitor sealing portion side receiving portion and the capacitor sealing portion side fixing portion are formed in a shape capable of engaging with each other, and the capacitor sealing portion side receiving portion for the capacitor mounting body is received. It is preferable that the mounting position of the body capacitor around the axis is defined. For example, if the outer shape of the capacitor-sealing-side receiver is square, the shape of the opening of the capacitor-sealing-side fixed part corresponds to that shape, and the axis of the capacitor of the capacitor-sealing-side receiver relative to the capacitor mounting body is aligned. If the mounting position in the circumferential direction is specified and the outer shape of the capacitor-sealing-side receiver is circular, then a protrusion or the like is provided on the outer peripheral side surface of the capacitor-sealing-side receiver.

When the capacitor is attached to the capacitor-sealing-side receptor, the capacitor-sealing-side receptor is attached to it at any position on the outer surface of the capacitor-sealing-side receptor so that the terminal angle of the capacitor can be visually recognized. It is preferable to include a polarity display section for displaying the terminal direction of the capacitor.

While a plurality of capacitor sealing portion side fixing portions are formed in such a capacitor mounting body, a plurality of capacitor sealing portion side fixing portions are also formed in the mounting body, so that a plurality of capacitors are collectively packaged. It is preferably fixable.

[0010]

[Action]

 In the capacitor fixing structure according to the present invention taking the above means, first, in a state in which the capacitor sealing part side is attached to the insulating capacitor sealing part side receptor from the opening on one end side, Insert the capacitor seal side receptor into the capacitor seal side fixed part of the capacitor mounting body and support it from the bottom side of the capacitor by the capacitor bottom side fixed part of the mounting auxiliary body. It is in a state of being fixed between the capacitor sealing part side fixing part and the capacitor bottom side fixing part of the mounting auxiliary body. Here, since the sealing portion side of the capacitor is inserted into the fixing portion on the sealing portion side of the capacitor through the insulating fixing auxiliary member (receptor on the sealing portion side of the capacitor), the withstand voltage of the sealing portion side receptor is Therefore, even if the insulating tube of the capacitor is damaged, the withstand voltage will not be impaired. Further, if the capacitor sealing part side fixing part is opened on the side of the capacitor mounting body, its strength is apt to decrease, but in the present invention, by adopting the high withstand voltage structure as described above, the withstand voltage is sacrificed. Instead, the capacitor mounting body is made of metal, so its strength is high both initially and over time, and its vibration resistance is high. On the other hand, when the fixing portion on the bottom surface side of the capacitor is not formed as the opening portion, the attachment auxiliary body has a small strength limitation, and thus a metal or resin one can be used. Here, even if the mounting auxiliary body is made of metal, if the bottom surface side of the capacitor is supported by the mounting auxiliary body through the insulative capacitor bottom surface side receptor, the withstand voltage will be Highly secured by the body.

[0011]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a side view showing an essential part of a capacitor bank adopting the capacitor fixing structure of the present invention, and FIG. 2 is a plan view thereof.

In this example, the capacitor bank 1 (power supply device) includes a bank unit 1 a including six screw terminal type aluminum electrolytic capacitors 2 (hereinafter, referred to as capacitors) connected in series by copper bus bars 7. , A plurality of capacitors are connected by wiring so as to be connected in parallel, and one of them is shown as a bank unit 1a. Here, each capacitor 2 of the bank unit 1a has a metal capacitor mounting plate 11 (capacitor) having six circular capacitor sealing part side fixing holes 111 (capacitor sealing part side fixing part) opened as capacitor fixing positions. Mounting body) and a flange portion 122 that is screwed to the flange portion 112 on the side of the capacitor mounting plate 11, and is made of metal and has six circular capacitor bottom surface side fixing holes 121 (capacitor bottom surface side fixing portion). It is in a state of being fixed between the attachment auxiliary plate 12 (attachment auxiliary body). Here, the capacitor 2 has its sealing side 21 attached to the capacitor sealing side receptor 3, and is inserted into the capacitor sealing side fixing hole 111 of the capacitor mounting plate 11 via the capacitor sealing side receptor 3. The bottom side 22 is attached to the condenser bottom side receptor 4 and is inserted into the condenser bottom side fixing hole 121 of the mounting auxiliary plate 11 via the condenser bottom side receptor 4. It is fixed in the closed state.

The capacitor sealing portion side receptor 3 used in the capacitor fixing structure having such a configuration has a plan view in FIG. 3 (a), a front view in FIG. 3 (b) and a front view in FIG. 3 (c). As shown in the side view, one end side 31 is opened, and a sealing part side mounting part 32 is formed so that the sealing part side 21 of the capacitor 2 can be inserted from the one end side 31, while the other end side 33 is the end face 34. Two terminal holes 35a, 35b through which the terminals 23, 24 of the mounted capacitor 2 can be projected are formed in the terminal. In addition, the end face 34 is provided with resistance mounting terminal portions 36a and 36b for solder-fixing the resistor 5 connected in parallel between the terminals 23 and 24 of the capacitor 2, and the explosion-proof valve of the capacitor 2 is also provided. An explosion-proof valve opening 37 for opening the valve is also formed. Further, on the end surface 34 of the outer surface of the capacitor sealing portion side receiver 3, a plus display portion 23a and a minus display portion 24a are marked on both sides of the terminals 23 and 24, respectively. Here, the inner diameters of the terminal holes 35a and 35b are set to be slightly larger than the outer diameters of the terminals 23 and 24 of the capacitor 2, and the sealing portion side 21 of the capacitor 2 is placed inside the sealing portion side mounting portion 32. With the terminal mounted, the terminals 23 and 24 project from the terminal holes 35a and 35b, respectively, so that wiring to the terminals 23 and 24 is possible, and the terminals 23 and 24 and the terminal holes 35a and 35b are not connected to each other. In the engaged state, the mounted capacitor 2 cannot rotate relative to the capacitor sealing part side receptor 3, and the mounting position of the capacitor 2 with respect to the capacitor sealing part side receptor 3 in the axial direction. Is specified. Further, on the outer peripheral side surface portion 3a of the capacitor sealing portion side receiver 3, a flange-shaped axial positioning protrusion 38 projects toward the outer periphery thereof, and as shown in FIG. When the sealing portion side receptor 3 is inserted from the other end side 33 into the capacitor sealing portion side fixing hole 111 of the capacitor mounting plate 11 (shown by a chain line), mounting in the capacitor sealing portion side fixing hole 111 As a result of the contact length of the auxiliary plate 12 being in contact with the periphery 111a and the insertion length of the capacitor-sealing-side receiving hole 11 being inserted into the capacitor-sealing-side fixing hole 111 being defined, the capacitor 2 in the axial direction of the capacitor 2 with respect to the capacitor mounting plate 11 is defined. The mounting position is specified. Further, the outer peripheral side surface portion 3a of the capacitor sealing portion side receptor 3 is provided with the unevenness 3b, and the substantial edge surface distance between the sealing portion side 21 of the capacitor 2 and the capacitor mounting plate 11 is long, and the resistance between them is long. The voltage is high. Further, from the formation position of the axial positioning protrusion 38 on the outer peripheral side surface portion 3a of the capacitor sealing portion side receiver 3 to the other end side 33 (end surface 34), one strip projecting from there to the outer peripheral side is formed. The protrusions 39 for positioning in the circumferential direction (protrusions for positioning in the circumferential direction) are provided, and the protrusions 39 for positioning in the circumferential direction are provided in the fixing holes 111 on the capacitor sealing portion side as shown in FIG. There is formed a key groove-shaped expansion opening 113 which engages with the capacitor mounting plate 11 and defines the mounting position of the capacitor 2 on the capacitor sealing portion side in the axial direction of the capacitor 2.

On the other hand, regarding the bottom surface side 22 of the capacitor 2, as shown in FIG. 1 and FIG. 3B, in a state in which the capacitor sealing portion side receptor 3 is inserted into the capacitor sealing portion side fixing hole 111, A structure in which the bottom surface side of the capacitor 2 is directly supported by a mounting auxiliary plate made of resin or metal can be adopted, but in the present example, while the mounting auxiliary plate 12 is also made of metal, The capacitor bottom surface side fixing portion is formed as an opening (capacitor bottom surface side fixing hole 121). The bottom surface side 22 of the capacitor 2 is supported via the capacitor bottom surface side receptor 4. As shown in FIG. 4 (a) in a plan view, in FIG. 4 (b) in a front view, and in FIG. While the bottom side 22 of the capacitor 2 can be inserted thereinto, the bottom side mounting portion 42 is formed so that the other end side 43, which is an end surface 44, has a part of the bottom surface of the mounted capacitor 2 open. As a state, a window opening portion 45 is formed to enhance heat dissipation from the window opening portion 45. Further, a flange-shaped projecting portion 48 projects toward the outer periphery of the outer peripheral side surface portion 4a of the capacitor bottom surface side receptor 4, and as shown in FIG. When the receptor 4 is inserted from the other end side 43 (end face 44 side) into the capacitor bottom surface side fixing hole 121 of the attachment auxiliary plate 12 (shown by a chain line), the projecting portion 48 has the capacitor bottom surface side fixing hole. It is possible to abut on the periphery 121 a of the capacitor mounting plate 11 side of the capacitor 121, and the mounting auxiliary plate 12 supports the bottom surface side 22 of the capacitor 2 via the projecting portion 48. In addition, the outer peripheral side surface portion 4a of the capacitor bottom surface side receptor 4 is formed with irregularities 4b, and the substantial edge surface distance between the bottom surface side 22 of the capacitor 2 and the mounting auxiliary plate 12 is long, and Withstand voltage is high.

An example of a procedure for attaching the capacitor 2 in the capacitor fixing structure having such a configuration will be described with reference to FIG.

FIG. 5 is an explanatory view showing the mounting procedure in the capacitor fixing structure of this example. As shown in FIG. 5, first, the sealing portion side 21 of the capacitor 2 is connected to the terminals 23 and 24 of the capacitor sealing portion. It is mounted inside the capacitor sealing portion side receiver 3 so as to project from the terminal holes 35a and 35b formed in the end surface 34 of the side receiver 3. In this state, the terminals 23 and 24 are engaged with the terminal holes 35a and 35b, and the rotation of the capacitor 2 in the circumferential direction of the capacitor 2 is restricted inside the capacitor sealing portion side receiver 3. The mounting position of the capacitor 2 with respect to the capacitor sealing portion side receptor 3 in the axial direction is defined. Then, the bottom surface side 22 of the capacitor 2 is mounted inside the capacitor bottom surface side receptor 4.

Next, the other end side 33 of the capacitor-sealing-portion-side receptor 3 is inserted into the capacitor-sealing-portion-side fixing hole 111 of the capacitor mounting plate 11. At this time, the circumferential positioning projections 39 formed on the outer peripheral side surface portion 3a of the capacitor sealing portion side receiver 3 are extended opening portions formed in the capacitor sealing portion side fixing holes 111 of the capacitor mounting plate 11. In the state in which 113 is aligned, the capacitor-sealing-portion-side receptor 3 is inserted so as to be guided by the circumferential positioning projection 39 and the expansion opening 113. For this reason, the terminal angle of the capacitor 2 with respect to the capacitor mounting plate 11 remains defined in a predetermined state. The flange-shaped axial positioning protrusion 38 of the capacitor-sealing-side receiver 3 abuts on the capacitor mounting plate 11, and the insertion length of the capacitor-sealing-side receiving hole 11 into the capacitor-sealing-side fixing hole 111 is reduced. As a result of the definition, the mounting position of the capacitor 2 on the capacitor mounting plate 11 in the axial direction is defined.

Next, after aligning the condenser bottom surface side fixing hole 121 of the attachment auxiliary plate 12 with the other end side 43 of the capacitor bottom surface side receptor 4, the condenser bottom surface is placed on the other end side 43 of the capacitor bottom surface side receptor 4. The mounting auxiliary plate 12 is moved so that the side fixing holes 121 are inserted, and the capacitor bottom surface side receiving member 4 is fixed by the mounting auxiliary plate 12 through the flange-shaped projecting portion 48 of the capacitor bottom surface side receiving member 4. That is, the bottom surface side 22 of the capacitor 2 is supported.

After that, as shown in FIGS. 1 and 2, the flange portion 112 of the capacitor mounting plate 11 and the flange portion 122 of the mounting auxiliary plate 12 are screwed together, and the capacitor 2 is connected to the capacitor mounting plate 11. It is fixed to the mounting auxiliary plate 12. Then, the wiring connection of the copper bus bar 7 to the terminals 23 and 24 of the capacitor 2 and the wiring connection of the resistor 5 to the resistor mounting terminal portions 36a and 36b are performed to manufacture the bank unit 1a.

It should be noted that the above-described mounting procedure is an example, and for example, with the capacitor bottom surface side receptor 4 inserted in the capacitor bottom surface side fixing hole 121 of the mounting auxiliary plate 12, the bottom surface side 22 of the capacitor 2 is inserted therein. In this state, attach the capacitor sealing side receiver 11 to the sealing side 21 of the capacitor 2 and then attach the capacitor sealing side receiver 11 to the capacitor sealing side fixing hole of the capacitor mounting body 11. You may plug in 111.

As described above, in the capacitor fixing structure adopted in the capacitor bank 1 of this example, the sealing portion side 21 of the capacitor 2 has the capacitor sealing portion side receiving member 3 as a resin fixing auxiliary member. Since it is inserted into the fixing hole 111 of the capacitor mounting body 11 on the capacitor sealing portion side, the withstand voltage between the capacitor 2 and the capacitor mounting body 11 is high. On the other hand, since the bottom surface side 22 of the capacitor 2 is also supported by the mounting auxiliary body 4 via the capacitor bottom surface side receptor 4 as a fixing auxiliary member made of resin, the space between the capacitor 2 and the mounting auxiliary body 4 is fixed. Has a high withstand voltage. Therefore, even if the capacitor mounting body 11 and the mounting auxiliary body 4 are made of metal in consideration of their initial and temporal strength, high vibration resistance can be ensured. The withstand voltage is also high. Therefore, even if the insulation tube of the attached auxiliary capacitor 2 is damaged through the capacitor bottom side receptor 4 as an auxiliary member for fixing the condenser, the withstand voltage is not impaired, and depending on its rated voltage, etc. The insulating tube can be omitted. In particular, since wiring is provided on the side of the capacitor mounting body 11, it is necessary to consider the insulating property from the capacitor 2, and in addition, the capacitor mounting body 11 is mounted with other circuit components and the like. Therefore, it is necessary to give sufficient consideration to the strength, but since the metal capacitor mounting body 11 is used to secure vibration resistance and high withstand voltage, It is possible to realize a power supply device that is particularly suitable for applications with severe vibration among voltage-based power supply devices.

Further, since the window opening portion 45 is formed on the end surface 44 of the capacitor bottom surface side receptor 4 and a part of the bottom surface side 22 of the capacitor 2 is in an open state, the heat dissipation from the capacitor is high, and It is designed to keep the reliability of 2 high. Furthermore, since the unevenness 3b, 4b is formed on each of the outer peripheral side surfaces 3a, 4b of the capacitor sealing portion side receptor 3 and the capacitor bottom surface side receptor 4, the sealing portion side 21 and the bottom surface side 22 of the capacitor 2 are formed. The edge distance between and is substantially extended, and the withstand voltage between them is further improved. Since the two terminals 23 and 24 of the condenser 2 and the terminal holes 35a and 35b are engaged with the condenser sealing portion side receiver 3, the mounting position of the condenser 2 in the axial direction does not shift. Here, the terminal holes 35a and 35b may be opened independently of each other, or may be connected and integrated. Further, since the projections 39 for circumferentially locating the capacitor sealing portion side receptor 3 and the expansion opening 113 of the capacitor sealing portion side fixing hole 111 are engaged, the capacitor sealing portion side receptor 3 is It does not rotate with respect to the mounting body 11, and the mounting position of the capacitor 2 in the axial direction does not shift.

If the outer shape of the capacitor-sealing-side receiver is circular, the projections for positioning in the circumferential direction of the capacitor-sealing-side receiver are used to receive the capacitor-sealing-side receiver for the capacitor mounting body. Although the mounting position of the body around the axis of the capacitor is determined, the outer shape of the capacitor-sealing side receptor is partially modified, while the shape of the opening of the capacitor-sealing side fixed part is made to correspond to that shape. By making them engageable with each other, the mounting position of the capacitor on the capacitor sealing portion side with respect to the capacitor mounting member in the direction around the axis of the capacitor may be defined.

[0025]

[Effect of the device]

 As described above, in the capacitor fixing structure according to the present invention, the capacitor is inserted into the capacitor sealing part side fixing part opened in the metal capacitor mounting body through the insulating capacitor sealing part side receiving part. In this state, the bottom side of the capacitor is attached and supported by an auxiliary body. Therefore, according to the present invention, even if a metal capacitor mounting body is adopted in order to ensure vibration resistance, the withstand voltage between the capacitor and the capacitor mounting body is determined by the capacitor sealing side receptor. It has the effect of ensuring a high price.

When the bottom surface side of the capacitor is supported by the attachment auxiliary body through the insulating capacitor bottom surface side receptor, even if a metal one is adopted as the attachment auxiliary body, those The withstand voltage is high and the vibration resistance can be further enhanced.

Further, in the case where the window opening is provided on the other end surface of the capacitor bottom surface side receptor, the heat dissipation from the bottom surface of the capacitor is high and the reliability of the capacitor is improved.

When the outer peripheral side surface of the capacitor-sealing-side receiver or the capacitor-bottom-side receiver has irregularities, the edge distance is substantially extended.

Further, when the terminal hole of the capacitor-sealing-side receptor and the two terminals of the capacitor can be engaged with each other, these engagements cause a movement in the direction around the axis of the capacitor with respect to the capacitor-sealing-side receptor. The mounting position does not shift.

Further, when the capacitor-sealing-portion-side receiver and the capacitor-sealing-portion-side fixing portion are formed in shapes that can engage with each other, the capacitor-sealing-portion-side receiver does not rotate and the capacitor mounting body Does not shift position with respect to.

When the capacitor sealing portion side receptor is provided with the polarity display portion on the outer peripheral surface, the terminal angle of the capacitor can be visually recognized when the capacitor is mounted on the capacitor sealing portion side receptor.

Further, while such a capacitor mounting body is formed with a plurality of capacitor sealing portion side fixing portions, while the mounting body is also formed with a plurality of capacitor sealing portion side fixing portions, Suitable for manufacturing capacitor banks, as it can fix multiple capacitors at once.

[Brief description of drawings]

FIG. 1 is a side view of a capacitor bank adopting a capacitor fixing structure according to an embodiment of the present invention.

FIG. 2 is a plan view of the capacitor bank shown in FIG.

3 (a) is a plan view of a capacitor sealing portion side receiver used in the capacitor bank shown in FIG. 1, (b) is a front view thereof, and (c) is a side view thereof.

4 (a) is a plan view of a capacitor bottom side receptor used in the capacitor bank shown in FIG. 1, (b) is a front view thereof, and (c) is a side view thereof.

FIG. 5 is an explanatory view showing an assembling procedure of the capacitor fixing structure shown in FIG. 1.

[Explanation of symbols]

1 ... Capacitor Bank 1a ... Bank Unit 2 ... Screw Terminal Type Aluminum Electrolytic Capacitor (Capacitor) 3 ... Capacitor Sealing Side Receptor 4 ... Capacitor Bottom Side Receptor 5 ... Resistor 7・ ・ ・ Copper bus bar 11 ・ ・ ・ Capacitor mounting plate (capacitor mounting body) 12 ・ ・ ・ Mounting auxiliary plate (mounting auxiliary body) 23, 24 ・ ・ ・ Terminal 23a ・ ・ ・ Plus display part 24a ・ ・ ・ Minus display part 32 ... Sealing part side mounting part 35a, 35b ... Terminal hole 36a, 36b ... Resistor mounting terminal part 37 ... Explosion proof valve opening 38 ... Axial positioning protrusion 39 ... -Circumferential positioning protrusion (circumferential positioning protrusion) 42 ... Bottom mounting portion 45 ... Window opening 48 ... Overhang 111 ... Capacitor sealing side fixing hole (capacitor sealing portion side fixing part) 113 ... extended opening 121 ... capacitor bottom side fixing hole (capacitor bottom side fixing portion)

Claims (2)

[Scope of utility model registration request] 1. An insulative capacitor-sealing-side receptor, in which a capacitor-sealing-portion side is mounted from an opening on one end side and a terminal of the capacitor projects from a terminal hole on the other-end side, The other end side of the receiver is inserted into the capacitor sealing part side fixed part opened in the metal capacitor mounting body with an opening shape that can be inserted and removed, and in this state, the bottom side of the capacitor is the bottom side of the mounting auxiliary body. The capacitor is supported by a fixed part, and the mounting position of the capacitor with respect to the capacitor mounting body in the axial direction is a predetermined position from the other end of the capacitor sealing portion side receiver, and the capacitor is protruded from the outer peripheral side surface part toward the outer peripheral side. Abut on the capacitor mounting body around the sealing portion side fixed portion, and A fixing structure for a capacitor, wherein an insertion length of the capacitor sealing portion side receptor is defined by an axial positioning protrusion. 2. The capacitor mounting body is formed with a plurality of the capacitor sealing portion side fixing portions, and the mounting auxiliary body is also formed with a plurality of the capacitor sealing portion side fixing portions to form the capacitor mounting portion. 2. The capacitor fixing structure according to claim 1, wherein a plurality of capacitors are fixed between the body and the attachment auxiliary body.