JPH0955585A - Parts container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost through reduction of the quantity of tiller while preventing erroneous function of other circuit parts caused by a lead wire for transmitting a high voltage pulse by disposing a transformer closely to the opening of a case where the plane on the opening side is larger than the plane on the opposite side. SOLUTION: A transformer 4 generating high voltage pulse, lead wires 5 for transmitting high voltage pulse, and a circuit device 6 smaller than the transformer 4 are mounted on a printed board 3 to constitute a circuit block 7. The circuit block 7 is set in a case 2 having one open side and a filler 13 is injected into the case 2. In such a parts container, the case 2 has a plane on the opening 8 side formed larger than a plane on the opposite side. Furthermore, the transformer 4 generating high voltage pulse is disposed closely to the opening 8 in the case 2 and the lead wires 5 for transmitting high voltage pulse are led out from the opening 8 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component storage device, and more particularly to a technique for filling a case with a circuit block including a transformer.

[0002]

2. Description of the Related Art Heretofore, a component storage device of this type in which a circuit component mounted on a printed circuit board is filled in a case is known. An example thereof is shown in FIG. In the figure, a heavy object such as a transformer 4 for generating a high voltage pulse, a lead wire 5 for transmitting a high voltage pulse, and a circuit component 6 such as an IC smaller than the transformer 4 are provided on the same printed circuit board 3, respectively. Mounted to form the circuit block 7,
There is known a storage device in which the circuit block 7 is stored in a case 2 having an opening on one surface, and then a filler 13 is injected from an opening 8 of the case 2 for heat dissipation and moisture prevention. Here, the case 2 is formed in a cylindrical shape having substantially the same vertical width, and a high-voltage pulse is generated at a position close to the surface of the case 2 on the opposite side of the opening 8 (hereinafter, referred to as "anti-opening surface 9"). The transformer 4 of is arranged. This is the opening 8 of the case 2
Since the opening 8 of the case 2 is on the upper side and the anti-opening surface 9 is on the lower side when the filler 13 is injected from the bottom, the transformer 4 which is a heavy object is arranged at the bottom of the case 2 to maintain stability. To do so. In addition, the lead wire 5 for transmitting the high voltage pulse passes near the circuit component 6 such as an IC and the opening 8 is formed.
Is being pulled out more.

[0003]

However, in the conventional structure in which the transformer 4 is arranged near the non-opening surface 9 of the case 2, the area of the surface of the case 2 on the non-opening surface 9 side is the transformer. It becomes larger by 4 and, along with this, Case 2
There is a problem that the cost increases because the amount of the filler 13 inside increases. Further, since the transformer 4 is for generating high voltage pulses, a lead wire 5 for transmitting high voltage pulses is often mounted in the vicinity of the transformer 4, and therefore, the transformer 4 and the leads which are high voltage lines are mounted on the same printed circuit board 3. When the wire 5 and the circuit component 6 such as an IC are mounted respectively, the lead wire 5 may pass through the vicinity of the IC or the like and cause a malfunction of the IC or the like.

The present invention has been made in view of the above conventional problems, and an object thereof is to reduce the amount of the filler to reduce the cost, and to use a lead wire for high-voltage pulse transmission. Another object of the present invention is to provide a component storage device capable of preventing the malfunction of the circuit component, and to further facilitate the filler injection work.
It is possible to surely prevent defective filling of the bottom of the case, eliminate the excess and deficiency of the filling amount, and enhance the heat dissipation effect of heat in the case, and protect the circuit block and the case and the circuit block. An object of the present invention is to provide a component storage device in which it is easy to secure the insulation distance.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention provides a printed circuit board 3
In addition, a transformer 4 for generating a high voltage pulse, a lead wire 5 for transmitting a high voltage pulse, and an IC smaller than the transformer 4 are mounted to form a circuit block 7, and the circuit block 7 is opened on one side. When stored in the case 2,
In the component storage device for injecting the filler 13 into the case 2, the surface of the case 2 opposite to the opening 8 has a shape smaller than the surface of the opening 8 side. 8
It is characterized in that the transformer 4 for high voltage pulse generation is arranged at a position close to, and the lead wire 5 for high voltage pulse transmission is drawn out from the opening 8 side to the outside. With such a configuration, the inner volume of the case 2 becomes smaller, the filling amount of the filler 13 can be made smaller than in the conventional case, and the transformer 4 and the IC are mounted on the same printed circuit board 3. However, without passing the lead wire 5, which is a high-voltage wire connected to the transformer 4, near the IC,
Since it can be pulled out from the opening 8 of the case 2, I
A malfunction such as C hardly occurs.

Here, a recess 10 is provided on one side surface 2a of the case 2 according to claim 1, and an end 9a of the case 2 opposite to the opening 8 is recessed inside the case 2. It is preferable that the fall prevention piece 15 is projected from the side of the recessed end 9a. In this case, the filler 13
When injecting into the case 2, even if the opening 8 of the case 2 is up and the end of the case 2 opposite to the opening surface side is down,
The case 2 can be prevented from falling by the fall prevention piece 15, so that the injection work is not hindered and the workability is not deteriorated.

It is preferable that the fall prevention piece 15 according to claim 2 also functions as a heat radiation fin. In this case, when the filler 13 is injected into the case 2,
By using the fall prevention piece 15 for preventing the fall, the heat in the case 2 can be radiated to the outside, and the influence on the IC and the like in the case 2 can be reduced. Further, either the circuit component 6'which is smaller than the transformer 4 or the lead wire 5 for high-voltage pulse transmission is arranged on the side A of the transformer 4 when viewed from the opening 8 side of the case 2 according to claim 1. In this case, when the filler 13 is injected, a small circuit component 6'on the side A of the transformer 4 or a space B in which the lead wire 5 for high voltage pulse transmission is arranged is preferable. The filling agent 13 can wrap around to the bottom of the case 2, and it is possible to reliably prevent defective filling of the bottom of the case 2.

A lead-in lead-in port 30 is formed in the case portion 2c between the opening 8 of the case 2 and the end surface 4a of the transformer 4 on the opening 8 side. In this case, since the lead-in port 30 of the lead wire 5 is formed closer to the opening 8 of the case 2 than the end face 4a of the transformer 4, the lead-in port 30 is filled when the filler 13 is injected. It serves as a guideline for the amount, and it becomes possible to easily visually recognize an excessive amount or insufficient amount of the filler 13 from the outside of the case 2.

Further, it is preferable that a groove 40 for positioning a circuit block is provided on the inner surface of the case 2 according to claim 1, and in this case, when the groove 40 puts the circuit block 7 in the case 2. Therefore, the circuit block 7 can be easily positioned and fixed to the inner side surface 2b of the case 2, and when carrying it before the filling with the filler 13,
The circuit block 7 does not move in the case 2 and the circuit component 6 is not damaged, and the insulating distance between the case 2 and the circuit block 7 can be secured after the filling.

[0010]

Embodiments of the present invention will be described below. As shown in FIG. 1, the component storage device 1 has a case 2 in which an opening 8 is provided on one surface, and a printed circuit board 3 is stored inside the case 2. A transformer 4 for generating a high voltage pulse, a lead wire 5 for transmitting a high voltage pulse, and a circuit component (control circuit) 6 such as an IC are mounted on the printed circuit board 3, and a circuit block 7 is configured by this. ing.

The case 2 whose one surface is open has a shape in which the area of the surface opposite to the opening 8 (hereinafter referred to as "anti-opening surface 9") is smaller than the area of the surface on the opening 8 side. Have In the present embodiment, as shown in FIG. 3, a step-shaped recess 10 is provided on one side surface 2a of the case 2, and the end 9a of the case 2 on the side opposite to the opening surface 9 is recessed inside the case 2. Yes, this reduces the internal volume of the case 2.
In the case where the circuit block 7 is housed in the case 2, a transformer 4 for generating a high voltage pulse is arranged at a position near the opening 8 in the case 2, and a lead for transmitting a high voltage pulse. The wire 5 is drawn out from the opening 8 side. A circuit component 6 such as an IC mounted on the printed circuit board 3 is arranged on the side opposite to the opening surface 9 of the case 2. In this state, a filler 13 is injected from the opening 8 of the case 2 for heat dissipation and moisture prevention. It is supposed to be done.

However, since the step-like recessed portion 10 is provided on the one side surface 2a of the case 2 which is open on one side for housing the circuit block 7, the inner volume of the case 2 becomes small and the filler 13 The filling amount can be made smaller than in the past, and the cost can be reduced. The shape of the case 2 is one side surface 2a of the case 2 as shown in FIGS.
In addition, a smooth taper portion 11 may be formed so as to be gradually recessed inward of the case 2 toward the non-opening surface 9 of the case 2.
Alternatively, the stepped portion 12 as shown in FIGS. 4C and 4D may be formed, and in any case, the filling amount of the filler 13 can be reduced. In addition, on the same printed circuit board 3,
Even when the transformer 4, the lead wire 5, and the circuit component 6 such as an IC are mounted, the lead wire 5 which is a high-voltage line connected to the transformer 4 does not pass in the vicinity of the IC or the like and the opening portion of the case 2 is provided. By pulling out from 8, the malfunction of the IC is less likely to occur, and the reliability of the circuit operation is significantly improved. Moreover, since the transformer 4 is located in the vicinity of the opening 8 of the case 2, heat from the outside of the case 2 can be generated.
It does not adversely affect the internal IC etc. Therefore, for example, even when the case 2 is used by being attached to a device such as a floodlight, the transformer 4 located near the opening 8 of the case 2 shields the radiant heat of the lamp from the floodlight, so that it is located deeper than the transformer 4. The lamp heat does not reach the IC located, and the transformer 4 is used to remove the heat from the lamp.
There is also an advantage that they can be sufficiently protected.

As another embodiment of the present invention, as shown in FIG. 5, a recess 10 is provided on one side surface 2a of the case 2,
In the structure in which the end 9a of the case 2 on the side opposite to the opening surface 9 is recessed inside the case 2, it is preferable that the fall prevention piece 15 is projected from the end 9a of the recessed side. That is, when the circuit block 7 including the transformer 4 is put in the case 2 and the filler 13 is poured with the opening 8 of the case 2 facing upward,
If the area of the non-opening surface 9 of the case 2 is smaller than the area of the surface on the opening 8 side, the center of gravity P of the case 2 may be biased and the case 2 may fall over. Injecting workability of No. 13 is deteriorated. Therefore, in this embodiment, a fall prevention piece 15 is attached to the case 2 so as to prevent the fall. This fall prevention piece 15 is, for example, as shown in FIG. It is composed of 15a. The horizontal plate member 15a extends on the same plane as the counter-opening surface 9 of the case 2, and the perpendicular line Q is lowered from the center of gravity P when the circuit block 7 is put in the case 2 and the perpendicular line Q is formed. If the crossing position R of the counter opening surface 9 of the case 2 and the same plane exists in the horizontal plate-shaped body 15a, the case 2
The center of gravity P is supported by the horizontal plate 15a, and the case 2 can be prevented from tipping over, so that workability does not deteriorate.

Another embodiment of the fall prevention piece 15 is shown in FIG.
(B) and FIG. 6 (b), the fall prevention piece 15 is formed by two rod-shaped bodies 15b on the left and right, and FIG. 7 (a) is two vertical plate-like bodies 15c on the left and right, which are parallel and project from the side corners of the case 2. Further, FIG. 7B is formed by one vertical plate-like body 15d protruding laterally from the center of the side of the case 2, both of which are formed on one side surface 2a of the case 2. A recessed portion 10 that is recessed in a stepped shape is formed inside the. Here, in FIG. 6B, two rod-shaped bodies 1
The reference numeral 5b extends on the same plane as the counter-opening surface 9 of the case 2, and the perpendicular line Q from the center of gravity P when the circuit block 7 including the transformer 4 is put in the case 2 and the counter-opening surface 9 of the case 2 are provided.
If the intersecting position R with the same plane exists in the plane S indicated by the hatched portion surrounded by the one side 9b of the anti-opening surface 9 of the case 2 and the two rod-shaped bodies 15b, the center of gravity of the case 2 Part P is 2
It is supported by the bar-shaped body 15b of the book, and the case 2 can be prevented from falling. Further, in FIG. 7A, the lower end portion of the vertical plate member 15c is arranged on the same plane as the anti-opening surface 9 of the case 2, and the perpendicular line from the center of gravity P when the circuit block 7 is put in the case 2. If Q is within the surface S indicated by the shaded area surrounded by the side 9b of the counter-opening surface 9 of the case 2 and the lower end of the vertical plate 15c, the case 2 can be prevented from falling. Further, in FIG. 7 (b), a triangular vertical plate member 15d, which is tapered from the center side of the recessed portion 10 of the case 2 toward the tip obliquely downward, is protruded, and the lower end portion of the vertical plate member 15d is protruded. Is located on the same plane as the anti-opening surface 9 of the case 2, and the perpendicular line Q from the center of gravity P when the circuit block 7 is put in the case 2 is the opposite of the end of the vertical plate 15d and the case 2. It is possible to prevent the case 2 from falling over if it is within the surface S indicated by the hatched portion connecting the one side 9b of the opening surface 9.

FIG. 8 shows still another embodiment of the fall prevention piece 15.
Shown in In the figure, the case 2 is attached to one side surface 2a of the case 2.
A smooth taper portion 11 is formed so as to be gradually recessed inside the case 2 toward the counter opening surface 9. In FIG. 8A, the fall prevention piece 15 is formed by one horizontal plate-like body 15 e located on the same plane as the counter-opening surface 9 of the case 2, and when the circuit block 7 is put in the case 2. If the perpendicular line Q from the center of gravity P is at the position R intersecting the horizontal plate 15e,
It is possible to prevent the case 2 from falling. Further, in FIG. 8B, the overturning prevention piece 15 is formed by two vertical plate-like bodies 15f on the left and right which are parallel to each other and project from the side corners of the case 2, and when the circuit block 7 is put into the case 2. A perpendicular line Q from the center of gravity P
However, one side 9b of the anti-opening surface 9 of the case 2 and the vertical plate 15
The case 2 can be prevented from falling over if it is within the surface S indicated by the shaded portion surrounded by the lower end of f.

As yet another embodiment of the present invention, as shown in FIG. 9, the transformer 4 is viewed from the opening 8 side of the case 2.
On one side A, a circuit component 6 ′ smaller (or shorter) than the transformer 4 may be arranged. Other configurations are similar to those in the case of FIG. By the way, the opening 8 of the case 2
In the case where the transformer 4 is disposed in the transformer 4, when the filler 13 is injected, the filler 13 may be less likely to wrap around the transformer 4, and the bottom of the case 2 may not be filled. By arranging the circuit component 6 ′ smaller than the transformer 4 on the side A of the transformer 4 as described above, a space B for injecting the filler 13 can be secured between the case 2 and the circuit component 6 ′, whereby the case 2 It is possible to prevent the situation where the filler 13 does not wrap around to the bottom of the. The lead wire 5 for transmitting the high voltage pulse may be arranged on the side A of the transformer 4.

As yet another embodiment of the present invention, FIG.
Further, as shown in FIG. 11, a plurality of fin-shaped fall prevention pieces 15 may be arranged in parallel on one side surface 2a of the case 2, and the fall prevention pieces 15 may also serve as heat radiation fins. Other configurations are similar to those in the case of FIG. As shown in FIG. 11, the fall prevention piece 15 extends from the center side of the one side surface 2 a of the case 2 to the end portion 9 a of the case 2 on the side opposite to the opening surface 9 and the front end surface 15 a of the fall prevention piece 15. Is the anti-opening surface 9 of the case 2
Has a taper shape that is gradually recessed toward the inside of the case 2 toward the bottom, and also has a lower end portion 15b of the fall prevention piece 15.
Are arranged on the same plane as the non-opening surface 9 of the case 2. In this way, the recessed portion 10 is provided on the one side surface 2a of the case 2 so that the end 9a of the case 2 on the side opposite to the opening surface 9 is recessed inside the case 2 and the end 9a of the recessed side falls. By projecting the prevention piece 15, even when the case 2 is placed with the opening 8 facing upward, the lower end portion 15b of the fall prevention piece 15 can prevent the case 2 from falling. Moreover, since the tip-preventing piece 15 is formed in the shape of a plurality of fins, the tip-preventing piece 15 itself can also serve as the heat radiation fin, and the heat-radiating effect can be obtained in addition to the tip-preventing effect of the case 2 without increasing the number of parts. Therefore, there is an advantage that the circuit components 6 and the like in the case 2 can be sufficiently protected from heat.

In addition to the configuration of FIG. 10 and FIG. 11, FIG. 12 shows a lead-in wire 5'in the case portion 2c between the opening 8 of the case 2 and the end surface 4a of the transformer 4 on the opening 8 side. 30 shows an embodiment in which 30 is perforated. The lead wire 5 of the printed circuit board 3 and the lead wire 5 ′ drawn from the lead-in port 30 are connected after the filler 13 is filled. At this time, the lead-in port 30 is connected to the transformer 4.
Since it is closer to the opening 8 of the case 2 than the end face 4a of the case 2, when the filler 13 is injected, the inlet 30 serves as a guide for the filling amount, and the amount of the filler 13 can be easily visually recognized from the outside of the case 2. Therefore, there is an advantage that it is possible to surely prevent the filler 13 from being overfilled or insufficient.

FIG. 13 shows an embodiment in which a groove 40 for positioning a circuit block is provided on the inner side surface 2b of the case 2 in addition to the configuration of FIGS. The groove 40 serves as positioning when the circuit block 7 is inserted into the case 2, and extends long along the insertion direction of the printed circuit board 3. With this groove 40, the circuit block 7 is moved to the inner surface 2b of the case 2. Can be easily positioned. Therefore, for example, there is no risk that the circuit block 7 will move in the case 2 and the IC or the like will be damaged when carrying it before the filling with the filler 13, and after the filling, the case 2 and the circuit block 7 will not be damaged. There is also an advantage that the insulation distance can be secured.

Further, as shown in FIG. 14, a flange-shaped mounting plate 50 may be attached to the end of the case 2 on the side of the opening 8. In this case, the case 2 is attached to a device such as a floodlight for use. Since the transformer 4 located near the opening 8 of the case 2 blocks the radiant heat of the lamp from the projector,
The heat of the lamp will not reach the ICs located deeper than
The transformer 4 can be used to sufficiently protect the IC and the like from lamp heat. Other configurations are the same as those in FIG.

[0021]

As described above, according to the invention of claim 1 of the present invention, a transformer for generating a high voltage pulse, a lead wire for transmitting a high voltage pulse, and a smaller size than the transformer are provided on a printed circuit board. In a component storage device in which a circuit block is configured by mounting each of the circuit components and the circuit block is accommodated in a case with one surface opened, and the filler is injected into the case, the case is opposite to the opening. Side surface has a shape smaller than the opening side surface, a transformer for high voltage pulse generation is placed near the opening in the case, and a lead wire for high voltage pulse transmission is provided in the opening. Since the case has a shape in which the surface on the side opposite to the opening is smaller than the surface on the opening side, the inner volume of the case becomes smaller and the filling amount of the filler is smaller. Less than before The cost can be reduced, and even if the transformer and the IC are mounted on the same printed circuit board, the lead wire, which is a high-voltage line connected to the transformer, does not pass near the IC. Since it is pulled out from the opening of the case, malfunction of the IC hardly occurs, and the reliability of circuit operation is significantly improved. Moreover, since the transformer, which is a heat-generating component, is located near the opening of the case, heat from the outside of the case does not adversely affect other components than the transformer inside the case. Even when it is used by mounting it on the transformer, the transformer blocks the radiant heat of the lamp from the projector, so that the lamp heat does not reach other circuit parts in the case, and the transformer is used to sufficiently remove the circuit parts such as IC from the lamp heat. It can be protected.

According to a second aspect of the present invention, a recess is provided on one side surface of the case according to the first aspect, and the end of the case opposite to the opening side is recessed inside the case and the recess is formed. Since the fall prevention piece is made to project from the end side of the other side, in addition to the effect according to claim 1, when the filler is injected into the case, the opening of the case is set to the upper side and the opening surface side of the case. Even if the end on the opposite side is turned down, the fall prevention piece can prevent the case from falling down, it does not hinder the injection work, the workability does not deteriorate, and the recessed part prevents the case from falling. The inner volume can be reduced and the filling amount can be reduced.

According to the invention of claim 3, the fall prevention piece according to claim 2 also functions as a heat radiation fin. Therefore, in addition to the effect according to claim 2, the case of the case falls when the filler is injected into the case. By using the fall prevention piece for preventing the heat, the heat in the case can be radiated to the outside, and the fall of the case and the protection of the circuit components in the case can be achieved with a small number of parts.

According to a fourth aspect of the present invention, either a circuit component smaller than the transformer or a lead wire for high-voltage pulse transmission is provided laterally of the transformer when viewed from the opening side of the case according to the first aspect. In addition to the effect according to claim 1, when the filler is injected, the small circuit component on the side of the transformer or the space for arranging the lead wire for high-voltage pulse transmission is arranged in the bottom of the case. The filling agent can wrap around to the bottom of the case. Therefore, it is possible to reliably prevent defective filling of the bottom of the case with the structure in which the transformer is arranged in the opening of the case.

According to the invention of claim 5, the lead wire lead-in hole is formed in the case portion between the opening of the case of claim 1 and the end face of the transformer on the opening side. In addition to the effect of, the lead wire inlet is formed closer to the opening of the case than the end face of the transformer, so when the filler is injected, the inlet serves as a guide for the filling amount, It can be easily visually recognized from the outside of the case, and it is possible to reliably prevent the filling or overfilling of the filler.

According to the invention of claim 6, since the groove for positioning the circuit block is provided on the inner surface of the case of claim 1, in addition to the effect of claim 1, the groove forms the circuit block in the case. Since the positioning is performed when inserting, the circuit block can be easily positioned and fixed to the inner surface of the case, and therefore, for example, when carrying before carrying out filling with the filler, the circuit block moves inside the case and the circuit parts are damaged. This eliminates the risk of damage and ensures the insulation distance between the case and the circuit block after filling.

[Brief description of drawings]

1A and 1B show an example of an embodiment of the present invention, in which FIG. 1A is a sectional view seen from a side surface, and FIG. 1B is a sectional view seen from an opening side.

2 (a) to (c) are a plan view, a side view, and a front view of the above circuit block.

3 (a) and 3 (b) are a cross-sectional view of the same case as seen from the side and a cross-sectional view as seen from the opening side.

FIG. 4 shows another example of the embodiment of the present invention, in which (a) and (b) are shown.
Is a sectional view seen from the side and a sectional view seen from the opening side,
(C) and (d) are a sectional view seen from the side and a sectional view seen from the opening side showing still another example of the case.

5A and 5B show still another example of the embodiment of the present invention, where FIG. 5A is a sectional view seen from the side, FIG. 5B is a sectional view seen from the opening side, and FIG. It is sectional drawing seen from the side surface.

6A is a perspective view illustrating a usage state of the fall prevention piece of FIG. 5, and FIG. 6B is a perspective view showing another example of the fall prevention piece.

7A and 7B are perspective views showing still another example of the fall prevention piece.

8A and 8B are perspective views showing still another example of the fall prevention piece.

9A and 9B show still another example of the embodiment of the present invention, in which FIG. 9A is a sectional view seen from the side, FIG. 9B is a sectional view seen from the opening side, and FIGS. FIG. 4 is a plan view, a side view and a front view of FIG.

FIG. 10 shows still another example of the embodiment of the present invention, (a)
Is a cross-sectional view as seen from the side surface, (b) is a cross-sectional view as seen from the opening side, and (c) and (d) are a front view and a plan view as seen from the side opposite to the opening surface.

11A and 11B are a perspective view of the case of FIG. 10 as viewed from the side opposite to the opening surface and a perspective view as viewed from the side of the opening.

FIG. 12 shows still another example of the embodiment of the present invention, (a)
Is a cross-sectional view as seen from the side, (b) is a cross-sectional view as seen from the opening side, (c) and (d) are a perspective view as seen from the side opposite to the opening surface and a perspective view as seen from the opening side. .

FIG. 13 shows still another example of the embodiment of the present invention, (a)
Is a cross-sectional view as seen from the side, (b) is a cross-sectional view as seen from the opening side, (c) and (d) are cross-sectional views as seen from the side and the opening side, and (e) (e) ( f) is a perspective view of the case seen from the opening side and a perspective view seen from the side opposite to the opening side.

FIG. 14 shows still another example of the embodiment of the present invention, (a)
(B) is a perspective view of the case seen from the opening side and a perspective view seen from the opposite opening side.

FIG. 15 shows a conventional example, (a) is a cross-sectional view as seen from the side, (b) is a cross-sectional view as seen from the opening side, and (c) to (e).
FIG. 4A is a plan view, a side view, and a front view of a circuit block.

[Explanation of symbols]

 2 Case 2a Side surface 3 Printed circuit board 4 Transformer 4a Opening side end surface 5 Lead wire 6, 6'Circuit parts 7 Circuit block 8 Opening section 10 Recessed section 13 Filler 15 Fall prevention piece 30 Retracting opening 40 Groove A Sideward

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Kenshi 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (6)

[Claims] 1. A circuit block is configured by mounting a transformer for generating a high voltage pulse, a lead wire for transmitting a high voltage pulse, and a circuit component smaller than the transformer on a printed circuit board to form a circuit block. In a component storage device that injects a filler into a case with one side opened, the case has a shape in which the surface opposite to the opening is smaller than the surface on the opening side. A component storage device, characterized in that a transformer for high-voltage pulse generation is arranged at a position near the opening in the case, and a lead wire for high-voltage pulse transmission is drawn out from the opening side to the outside. 2. A recess is provided on one side surface of the case, an end of the case opposite to the opening side is recessed inside the case, and a tipping prevention piece is provided from the end of the recessed side. The component storage device according to claim 1, wherein the component storage device is projected. 3. The component storage device according to claim 2, wherein the fall prevention piece also serves as a heat radiation fin. 4. A circuit component smaller than the transformer or a lead wire for transmitting a high-voltage pulse is arranged laterally of the transformer when viewed from the opening side of the case. Parts storage device. 5. The component storage device according to claim 1, wherein a lead-in port is formed in a case portion between the opening portion of the case and the end surface on the opening portion side of the transformer. 6. The component storage device according to claim 1, wherein a groove for positioning the circuit block is provided on the inner surface of the case.