JP7018992B2 - Circuit components, boards, circuit assemblies, and electric compressors for vehicles with anti-vibration fixed structures - Google Patents

Description

The present invention relates to a circuit assembly having a vibration-resistant fixing structure for circuit parts such as a capacitor, and an electric compressor for a vehicle including a circuit assembly having circuit parts.

The electric compressor constituting the air conditioner for a vehicle includes a circuit assembly having a circuit for driving and controlling a motor. The circuit assembly includes various circuit components, a substrate to which the circuit components are connected, and a circuit component and a circuit case for accommodating the circuit components. The circuit case is provided in the housing of the electric compressor.
Circuit components include relatively small ones such as switching elements and IC (Integrated Circuit) chips, and relatively large ones such as noise-cutting capacitors and coils.
In Patent Document 1, a capacitor is arranged below the substrate in the circuit case.

Japanese Patent Application Laid-Open No. 2003-262187

Circuit parts provided in a vehicle are in a severe vibration environment affected by engine vibration, road surface vibration, and the like.
It is an object of the present invention to provide a circuit assembly having a vibration-resistant fixing structure sufficient to prevent damage to circuit parts and substrates even in such a severe vibration environment, and an electric compressor for vehicles. do.

The present invention is a circuit component including a component body and a component case. The component body includes a pair of first connection terminals and a second connection terminal, and the component case includes an accommodating portion for accommodating the component body and an accommodating portion. The first fixed portion and the second fixed portion provided on both sides of the above are provided, the first connection terminal is arranged closer to the first fixed portion than the second fixed portion, and the second connection terminal is the first. The first connection terminal and the second connection terminal are arranged closer to the second fixing portion than the fixing portion, and the first connection terminal and the second connection terminal face each other with a fixing line connecting the first fixing portion and the second fixing portion sandwiched between them. At the position, it protrudes laterally from the component body and extends toward the connection target.

In the circuit component of the present invention, it is preferable that each of the first connection terminal and the second connection terminal is set in the longitudinal direction of the cross section along the direction orthogonal to the fixed line.

In the circuit component of the present invention, the component body is preferably a capacitor housed in a component case and including a storage unit for storing electric charges and a first connection terminal and a second connection terminal provided in the storage unit.

The substrate of the present invention includes the circuit components described above.

The circuit assembly of the present invention includes the above-mentioned circuit components and a substrate to which the circuit components are connected.

In the circuit assembly of the present invention, it is preferable that the first fixing portion and the second fixing portion have different positions in the direction orthogonal to the substrate along the plate thickness direction.

The circuit assembly of the present invention preferably includes a circuit case for accommodating a substrate and circuit components.
Here, it is preferable that at least one of the first fixing portion and the second fixing portion is fixed to the circuit case without passing through the substrate to which the first connection terminal and the second connection terminal are connected. Further, it is preferable that the component main body is located near the place where the board is fixed to the circuit case.

The present invention is an electric compressor for a vehicle mounted on a vehicle, wherein the above-mentioned circuit assembly, a motor to which a drive current is supplied from the circuit assembly, and a compression that compresses a fluid by power transmitted from the motor. It is characterized by having a mechanism.

According to the present invention, the connection terminal is fixed to the board in the vicinity of the fixed portion, and the vibration amplitude of the circuit component is small at the position where the connection terminal is fixed to the board. Therefore, since an excessive load is not applied to the connection terminal or the board, it is possible to prevent the connection terminal or the board from being damaged.
Further, a pair of connection terminals may be arranged so as to sandwich a fixing line connecting the first fixing portion and the second fixing portion, or the height of the first fixing portion and the height of the second fixing portion may be different. As a result, the rigidity can be increased and damage to circuit components and boards can be prevented more reliably.

It is a vertical sectional view which shows the electric compressor for a vehicle which concerns on embodiment of this invention. It is a perspective view which shows a circuit case, a board, and a capacitor. It is a perspective view which shows the capacitor fixed to a circuit case. It is a perspective view which shows a capacitor and a substrate. It is a side view which shows a capacitor and a substrate. It is a perspective view which shows the terminal member of a capacitor. It is a perspective view which shows the capacitor alone. It is a figure which shows a typical example. (A) and (b) are diagrams showing a modification of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
The electric compressor 10 shown in FIG. 1 includes a motor 11, a compression mechanism 12, a housing 13 that houses the motor 11 and the compression mechanism 12, and a circuit assembly 20 having a circuit that drives and controls the motor 11. ..
The electric compressor 10 constitutes an air conditioner mounted on a vehicle.

The motor 11 includes a stator 111 fixed to the housing 13 and a rotor 112 rotated with respect to the stator 111.
A shaft 14 is coupled to the rotor 112.

The compression mechanism 12 includes a fixed scroll 121 fixed to the housing 13 and a swivel scroll 122 that revolves around the fixed scroll 121.
The swivel scroll 122 is coupled to an eccentric pin 141 provided at the end of the shaft 14.

The housing 13 is formed in a cylindrical shape having an axis along the shaft 14.
The housing 13 is attached to the engine of the vehicle by a bracket (not shown). At this time, the shaft 14 is arranged horizontally.

The electric compressor 10 operates as follows.
When a three-phase drive current is supplied to the stator 111 of the motor 11 by the circuit assembly 20, the motor 11 is driven, and the shaft 14 is rotated by the rotational driving force output by the motor 11. When the swivel scroll 122 is swiveled by transmitting the rotation of the shaft 14, the refrigerant in the housing 13 is sucked into the compression chamber between the fixed scroll 121 and the swivel scroll 122. The compression mechanism 12 compresses the refrigerant by reducing the volume of the compression chamber due to the rotation of the swivel scroll 122, and discharges the refrigerant to a refrigerant circuit (not shown).

Next, the configuration of the circuit assembly 20 will be described.
As shown in FIG. 2, the circuit assembly 20 includes a substrate 21, circuit components such as a capacitor 30 connected to the substrate 21, and a circuit case 20C accommodating the substrate 21 and the capacitor 30.
The circuit assembly 20 is integrated with the housing 13 (FIG. 1).

The circuit case 20C includes a partition wall 22 (FIGS. 1 and 3) that separates the inside of the housing 13 from the inside of the circuit assembly 20, a peripheral wall 23 that rises from the peripheral edge of the partition wall 22, and a fixing portion 24 that is fastened to the housing 13. , With a lid (not shown).
The circuit case 20C closes the opening 130 (FIG. 1) formed on one end side of the housing 13. The peripheral portion of the opening 130 and the circuit case 20C are sealed by a sealing member (not shown).

A plurality of bosses 25 and 26 (FIG. 3) are erected on the partition wall 22. A substrate 21 and a capacitor 30 are fastened to the bosses 25 and 26.
The peripheral wall 23 surrounds the substrate 21 and the capacitor 30. A lid (not shown) is fixed to the tip of the peripheral wall 23.
Inside the circuit case 20C, as shown in FIG. 2, there is a storage space composed of a cylindrical space 201 corresponding to the shape of the housing 13 (FIG. 1) and a rectangular space 202 continuous with the space 201. is doing.
The substrate 21 is arranged over almost the entire area in the circuit case 20C except for the area required for installing the capacitor 30.
A plurality of points on the board 21 are fixed to the boss 26 (FIG. 3) of the circuit case 20C with screws. The fixing point of the substrate 21 fixed to the boss 26 also exists in the vicinity of the capacitor 30. FIG. 4 shows a hole 211 of the substrate 21 corresponding to the boss 26 of FIG.

A drive circuit for inverter-controlling the motor 11 is configured including various circuit elements 27 (only a part of which is shown in FIG. 2) provided on the substrate 21 and a capacitor 30.
The drive circuit boosts the direct current supplied from a battery (not shown) and switches it to generate and output a three-phase alternating current supplied to the motor 11.

The switching element is hidden under the substrate 21 shown in FIG. In order to dissipate heat, the switching element is preferably arranged on the partition wall 22 in the housing 13 in contact with the refrigerant so as to be heat conductive. The switching element can also be fixed to the partition wall 22 with screws or the like.

The capacitor 30 is used to reduce the noise generated by switching. In addition to the capacitor 30, a coil may be used.
Circuit components such as the capacitor 30, which are larger and heavier than the circuit element 27 provided on the substrate 21, are fixed to the circuit case 20C.

The capacitor 30 is arranged in a corner of the rectangular space 202 in the circuit case 20C, and is fixed to the boss 25 (FIG. 3) of the circuit case 20C.
The capacitor 30 is mechanically fixed to the circuit case 20C and electrically connected to the substrate 21.
If there are circuit components other than the capacitor 30 that are not mounted on the board 21, the circuit components can be arranged under the board 21 and fixed to the circuit case 20C.

Since the electric compressor 10 is mounted on the vehicle, the circuit assembly 20 is in a particularly severe vibration environment.
As vibration sources, the wheels are transmitted by transmitting the driving force output from the engine of the vehicle, the vibration caused by the unevenness of the road surface, the driving motor installed in the electric vehicle or the hybrid vehicle, and the power source such as the engine or the motor. Examples thereof include a drive system for driving the motor, and a compression mechanism 12 of the electric compressor 10.
Even if the substrate 21, the capacitor 30, and the circuit case 20C are vibrated by the vibration transmitted from such a vibration source, it is necessary to prevent the substrate 21 and the capacitor 30 from being damaged.

In this embodiment, in order to sufficiently secure the vibration resistance of the capacitor 30, the vibration resistance fixing structure described below is provided.
First, the configuration of the capacitor 30 will be described with reference to FIGS. 5 to 7.
The capacitor 30 includes a component body 31 and a capacitor case 40 that houses the component body 31.

The component main body 31 includes a power storage unit 31A (FIG. 6) for storing electric charges, a substantially rectangular parallelepiped resin mold 31B (FIG. 5) that covers the power storage unit 31A, and two terminal members 32, 33 provided in the power storage unit 31A. (Fig. 6) is provided.

The terminal members 32 and 33 (FIG. 6) are formed by punching and bending a sheet metal material. These terminal members 32 and 33 have a rectangular cross section.
The terminal member 32 is a positive electrode (or negative electrode) taken out from the inside of the power storage unit 31A, and includes a connection terminal 32A connected to the substrate 21 and a terminal 32B connected to an element (not shown) constituting the drive circuit. have.
The terminal member 33 is a negative electrode (or positive electrode) taken out from the inside of the power storage unit 31A, and includes a connection terminal 33A connected to the substrate 21 and a terminal 33B connected to an element (not shown) constituting the drive circuit. have.

As shown in FIGS. 5 and 6, the terminal member 32 is pulled out from one end side of the width direction D1 of the capacitor 30 to the other end side via the bottom surface 31C of the component main body 31, and the terminal member 33 is the terminal member 32. On the contrary, it is drawn from the other end side of the component body 31 to one end side via the bottom surface 31C of the component body 31.
As shown in FIG. 7, a pair of connection terminals 32A and 33A are located on one end side of the component body 31, and a pair of terminals 32B and 33B are located on the other end side of the component body 31.

As shown in FIGS. 5 and 6, the connection terminals 32A and 33A are continuous with the projecting portion P1 projecting laterally from the component main body 31 directly under the substrate 21 and the projecting portions P1 toward the substrate 21. Each has an extended tip P2. The tip portion P2 is bent with respect to the protruding portion P1.

As shown in FIGS. 5 and 6, the terminals 32B and 33B project laterally from the component main body 31 in the absence of the substrate 21, and are formed in an annular shape as shown in FIG. 7.

As shown in FIG. 7, the capacitor case 40 includes an accommodating portion 40A for accommodating the storage unit 31A and the resin mold 31B from the opening 40B, and a first fixing portion 41 and a second fixing portion 42 provided on both sides of the accommodating portion 40A. It is equipped with.
The capacitor case 40 is integrally molded from an insulating resin.
The accommodating portion 40A is formed in the shape of a substantially rectangular parallelepiped box.
The power storage unit 31A and the resin mold 31B are fitted or press-fitted into the accommodating unit 40A.

The capacitor case 40 is formed with holding portions 43, 43 for holding the connection terminals 32A, 33A, and holding portions 44, 44 for holding the terminals 32B, 33B.
The terminals 32B and 33B are contact-conducted with other annular terminals (not shown) superimposed on each of the terminals 32B and 33B by a metal screw (not shown) inserted into the holding portion 44.

As shown in FIG. 7, the tip P2 of each of the connection terminals 32A and 33A protrudes from the holding portion 43.
Each tip P2 is electrically connected to a terminal pattern (not shown) provided on the substrate 21 (FIG. 4) and mechanically fixed to the substrate 21.
The tip portion P2 of the present embodiment penetrates the substrate 21 in the thickness direction through a hole 210 formed in the substrate 21, and the tip portion P2 and the terminal pattern of the substrate 21 are joined by solder (not shown) to the substrate. It is mechanically fixed to 21 and electrically connected.

The first fixing portion 41 and the second fixing portion 42 are each firmly fixed to the boss 25 (FIG. 3) of the circuit case 20C with screws 28. The component main body 31 is fixed to the circuit case 20C on both sides by the first fixing portion 41 and the second fixing portion 42. Each of the first fixing portion 41 and the second fixing portion 42 is formed with a hole into which a screw 28 is inserted.
The first fixing portion 41 and the second fixing portion 42 both hold and support the component main body 31 with the position of the center of gravity of the component main body 31 interposed therebetween.

As shown in FIG. 3, the substrate 21 is not interposed between the first fixing portion 41 and the boss 25. The same applies between the second fixing portion 42 and the boss 25. That is, the first fixing portion 41 and the second fixing portion 42 are fixed to the circuit case 20C without going through the substrate 21.
In the present embodiment, since the first and second fixing portions 41 and 42 are not fastened together with the substrate 21, the vibration of the substrate 21 is not input to the first and second fixing portions 41 and 42. Therefore, the input of vibration from the substrate 21 to the capacitor 30 is suppressed, so that the connection terminals 32A and 33A, the first and second fixing portions 41 and 42, and the substrate 21 are prevented from being damaged due to the relative vibration between the capacitor 30 and the substrate 21. Can contribute to.

As shown in FIG. 7, the first fixing portion 41 is located on one end side of the capacitor 30 in the width direction D1, and the second fixing portion 42 is located on the other end side of the capacitor 30 in the width direction D1.
The first fixing portion 41 is located between the holding portions 43 and 43 that hold the connection terminals 32A and 33A, and protrudes laterally from the side surface 31D of the capacitor 30 to a position beyond the holding portions 43 and 43. ..
Connection terminals 32A and 33A are located in the vicinity of the first fixing portion 41.

The second fixing portion 42 is located between the holding portions 44 and 44 that hold the terminals 32B and 33B, and projects laterally from the side surface 31E of the capacitor 30 to a position beyond the holding portions 44 and 44.
Terminals 32B and 33B are located in the vicinity of the second fixing portion 42.

The basic feature of this embodiment is that the connection terminals 32A and 33A are fixed to the substrate 21 in the vicinity of the first fixing portion 41 fixed to the circuit case 20C. This is related to the configuration of the connection terminals 32A and 33A.
As shown in FIG. 8, typical connection terminals 82A and 83A project linearly upward from the upper end of the capacitor 80 facing the substrate 21. In this case, the connection terminals 82A and 83A are fixed to the substrate 21 at positions far from the fixing portions 801, 802 fixed to the circuit case (not shown).
On the other hand, when the connection terminals 32A and 33A of the present embodiment (FIG. 5) are pulled out sideways from the component body 31, the first fixing portion 41 located on the side of the component body 31 It is possible to fix the connection terminals 32A and 33A to the substrate 21 in the vicinity of.

By the way, when the component main body 31 is pulled out to the side, the connection terminals 32A and 33A are not above the capacitor 30, and no space is required for soldering above the capacitor 30, so that the circuit case 20C is used. The volume of the capacitor 30 can be taken up to the upper limit of the inner height (the position of the lid). As shown in FIG. 5, the upper end portion of the capacitor 30 of the present embodiment projects upward from the adjacent substrate 21.

The connection terminals 32A and 33A are located in the vicinity of the first fixed portion 41 and, as shown in FIG. 7, between the line connecting the first fixed portion 41 and the second fixed portion 42 (hereinafter, fixed line L1). It is sandwiched and arranged symmetrically with respect to the fixed line L1.

Further, as shown in FIG. 5, the positions of the first fixing portion 41 and the second fixing portion 42 are different in the direction (height direction) orthogonal to the substrate 21 along the plate thickness direction.
Specifically, the second fixed portion 42 exposed without being hidden by the substrate 21 is at a higher position than the first fixed portion 41 located on the back side (partition wall 22 side) of the substrate 21. .. The difference between the height of the first fixed portion 41 and the height of the second fixed portion 42 is indicated by ΔH.
The height of the first fixed portion 41 is substantially the same as the height of the protruding portions P1 of the connection terminals 32A and 33A.
The height of the second fixing portion 42 is substantially the same as the height of the substrate 21.
In addition, unlike the present embodiment, even if the first fixing portion 41 is at a higher position than the second fixing portion 42, it is permissible as long as the screw 28 can be fixed.

The operation and effect of the circuit assembly 20 of the present embodiment will be described.
First, the vibration state of the capacitor 30 will be described.
When the capacitor 30 is laterally fixed by the first fixing portion 41 and the second fixing portion 42, the first fixed portion is fixed in the vicinity of the central portion of the capacitor 30 far from the first and second fixing portions 41 and 42. The vibration amplitude of the capacitor 30 is larger than that of the positions of the second fixed portions 41 and 42. This also applies to the typical capacitor 80 shown in FIG.

In a typical example (FIG. 8), the connection terminals 82A and 83A are fixed to the substrate 21 at the central portion of the capacitor 80 far from the fixed portions 801, 802. At the positions where the connection terminals 82A and 83A are fixed to the substrate 21, the vibration amplitude of the capacitor 80 is large (see the arrow), so that the relative displacement between the substrate 21 and the capacitor 80 is large.

On the other hand, in the present embodiment (FIG. 5), the connection terminals 32A and 33A are fixed to the substrate 21 in the vicinity of the first fixing portion 41 of the first fixing portion 41 and the second fixing portion 42. At the positions where the connection terminals 32A and 33A are fixed to the substrate 21, the vibration amplitude of the capacitor 30 is small, so that the relative displacement between the substrate 21 and the capacitor 30 is small. Therefore, since an excessive load is not applied to the connection terminals 32A and 33A and the board 21, damage to the connection terminals 32A and 33A and the board 21 can be prevented.
Therefore, according to the present embodiment, sufficient vibration resistance can be ensured in order to prevent damage to the capacitor 30 and the substrate 21 even in a severe vibration environment.

Further, the present embodiment also improves the vibration resistance by the configuration regarding the position of the capacitor 30 in the circuit case 20C.
The capacitor 30 is arranged in the circuit case 20C in the vicinity of the boss 26 to which the substrate 21 is fixed (FIG. 3). Then, since the connection terminals 32A and 33A of the capacitor 30 are fixed to the portion of the board 21 where the vibration amplitude is small because they are fixed, the connection terminals 32A and 33A and the board 21 due to the relative vibration between the capacitor 30 and the board 21 are fixed. , It can contribute to the prevention of damage to the first fixing portion 41 and the second fixing portion 42.

In addition to the above, in order to improve the vibration resistance, it is preferable that the following configuration is adopted.
Hereinafter, the configurations (1) to (3) adopted in the present embodiment are listed.
(1) First, as shown in FIG. 7, the connection terminals 32A and 33A are arranged so as to sandwich the fixed line L1 connecting the first fixed portion 41 and the second fixed portion 42, and the fixed line L1 is arranged. Since the connection terminals 32A and 33A are fixed to the substrate 21 on both sides, the rigidity in the direction in which the capacitor 30 falls around the axis of the fixed line L1 (see the arrow) is improved. Therefore, the spring constant K corresponding to the rigidity can be improved, and the natural frequency f can be increased in order to avoid resonance (see the basic formula below).
It is most preferable that the connection terminals 32A and 33A are arranged along the direction orthogonal to the fixed line L1 in order to improve the rigidity in the direction of tilting around the axis of the fixed line L1.
By improving the rigidity in the direction in which the capacitor 30 falls, it is possible to contribute to the prevention of damage to the first and second fixing portions 41 and 42, the connection terminals 32A and 33A, and the substrate 21.

ｆ：固有振動数
Ｍ：質量
Ｋ：バネ定数

f: Natural frequency
M: Mass
K: Spring constant

(2) Next, the connection terminals 32A and 33A of the present embodiment exhibit a rectangular cross section, and as shown in FIG. 7, the long side of the cross section is along the direction D2 orthogonal to the fixed line L1. It is arranged like this. That is, the longitudinal direction of the cross section of the connection terminals 32A and 33A is set along the direction orthogonal to the fixed line L1.
As a result, the moment of inertia of area of the connection terminals 32A and 33A increases with respect to the axis of the fixed line L1, so that the rigidity of the capacitor 30 having the connection terminals 32A and 33A is improved.

(3) As shown in FIG. 5, the rigidity of the capacitor 30 in the tilting direction is also improved by fixing the capacitor 30 to the circuit case 20C at different heights by the first fixing portion 41 and the second fixing portion 42. do.
Further, it is preferable that the first fixing portion 41 and the second fixing portion 42 are arranged with the center of gravity X of the capacitor 30 interposed therebetween. Then, the vibration force acting on the center of gravity X can be handled in a well-balanced manner by the first fixing portion 41 and the second fixing portion 42, and the rigidity can be improved.

According to the above configurations (1) to (3), the rigidity in the direction in which the capacitor 30 falls is increased without increasing the number of fixed portions or increasing the rigidity by increasing the plate thickness of the fixed portions 41 and 42. be able to.
One or more appropriately selected from the above configurations (1) to (3) can be adopted.

FIG. 9A shows a modified example of the present invention.
In FIG. 9A, the connection terminal 32A is located in the vicinity of the first fixed portion 41, and the connection terminal 33A is located in the vicinity of the second fixed portion 42. The tip P2 of the connection terminal 32A is fixed to the substrate 21 in the vicinity of the first fixing portion 41, and the tip P2 of the connection terminal 33A is fixed to the substrate 21 in the vicinity of the second fixing portion 42.
Further, as in the above embodiment, the connection terminals 32A and 33A are arranged along the direction intersecting the fixed line L1.
In the configuration shown in FIG. 9A, the connection terminal 32A is fixed to the substrate 21 in the vicinity of the first fixing portion 41 fixed to the circuit case 20C, and the vicinity of the second fixing portion 42 also fixed to the circuit case 20C. The connection terminal 33A has a basic feature of being fixed to the substrate 21.
Due to this basic feature, as in the above embodiment, at the position where the connection terminals 32A and 33A are fixed to the substrate 21, the vibration amplitude of the capacitor 30 is small, so that the relative displacement between the substrate 21 and the capacitor 30 is large. small. Therefore, since an excessive load is not applied to the connection terminals 32A and 33A and the board 21, damage to the connection terminals 32A and 33A and the board 21 can be prevented.

Further, in FIG. 9A, the connection terminal 32A and the connection terminal 33A are arranged with the center of gravity X of the capacitor 30 interposed therebetween. The same applies to the first fixing portion 41 and the second fixing portion 42.
Then, the first fixing portion 41 and the connection terminal 32A, and the second fixing portion 42 and the connection terminal 33A can take charge of the exciting force acting on the center of gravity X in a well-balanced manner, and the rigidity can be improved.
Further, as shown in FIGS. 9A and 9B, it is preferable to improve the rigidity of the capacitor 30 in the direction of tilting by applying the above-described configurations (1) to (3).

In addition to the above, as long as the gist of the present invention is not deviated, the configurations listed in the above embodiments can be selected or changed to other configurations as appropriate.
The position of the capacitor 30 in the circuit case 20C is not limited to the above embodiment, and the entire capacitor 30 may be arranged under the substrate 21. In that case, both the first fixing portion 41 and the second fixing portion 42 are arranged between the one surface 21A (FIG. 5) of the substrate 21 and the partition wall 22.

Further, in the present invention, it is also permissible that one or both of the first fixing portion 41 and the second fixing portion 42 are fixed to the boss of the circuit case 20C together with the substrate 21 by the same screw 28.

The number of connection terminals 32A and 33A drawn out from the capacitor 30 to the side and fixed to the substrate 21 is not particularly limited. As long as it has one or more connection terminals and the connection terminals are fixed to the substrate in the vicinity of the fixing portion, it is included in the circuit component of the present invention.
Also, the number of fixed portions is not limited. In addition to the first fixing portion 41 and the second fixing portion 42, it is also permissible to add another fixing portion for fixing the component main body 31 to the circuit case 20C.

The method of fixing and conducting the connection terminal to the substrate 21 is not limited to soldering. For example, the connection terminal can be fixed and conducted to the substrate 21 by press-fitting the press-fitting portion formed in the connection terminal into the hole of the substrate 21.

The type of the compression mechanism provided in the electric compressor of the present invention and the type of the motor are not limited.
The circuit component included in the circuit assembly of the present invention is not limited to a capacitor, and may be, for example, a choke coil or the like.

10 Electric compressor 11 Motor 12 Compression mechanism 13 Housing 14 Shaft 20 Circuit assembly 20C Circuit case (case)
21 Board 22 Partition 23 Peripheral wall 24 Fixed part 25 Boss 26 Boss 27 Circuit element 28 Screw 30 Capacitor (circuit parts)
31 Parts body 31A Power storage unit 31B Resin mold 31C Bottom surface 31D Side surface 31E Side surface 32 Terminal member 32A Connection terminal 32B Terminal 33 Terminal member 33A Connection terminal 33B terminal 40 Capacitor case 40A Storage unit 40B Opening 41 First fixing unit 42 Second fixing unit 43 Holding part 44 Holding part 80 Capacitor 82A, 83A Connection terminal 111 Stator 112 Rotor 121 Fixed scroll 122 Swivel scroll 130 Opening 201 Space 202 Space 210 Holes 801,802 Fixed part D1 Width direction D2 Direction L1 Fixed line P1 Protruding part P2 Tip part X center of gravity

Claims (7)

Circuit components including the component body and component case ,
The board to which the circuit components are connected and
A circuit case for accommodating the board and the circuit components is provided.
The component body includes a pair of plate-shaped first connection terminals and second connection terminals.
The component case includes an accommodating portion for accommodating the component main body, and a first fixing portion and a second fixing portion provided on both sides of the accommodating portion so as to project laterally from the side surface of the accommodating portion and fixed to the circuit case. With a department,
The first connection terminal is arranged closer to the first fixed portion than the second fixed portion.
The second connection terminal is arranged closer to the second fixed portion than the first fixed portion.
The first connection terminal and the second connection terminal are
A fixing line connecting the first fixing portion and the second fixing portion is sandwiched between them so as to face each other, and the one surface of the substrate and the circuit case at each position project laterally from the component body . A circuit assembly comprising a protrusion and a junction that bends toward the substrate and is joined to the substrate with respect to the protrusion . Each of the first connection terminal and the second connection terminal
The longitudinal direction of the cross section is set along the direction orthogonal to the fixed line.
The circuit assembly according to claim 1. The component body is
It is a capacitor including a power storage unit housed in the component case and storing electric charge, and the first connection terminal and the second connection terminal provided in the power storage unit.
The circuit assembly according to claim 1 or 2. The first fixing portion and the second fixing portion are
The positions in the direction orthogonal to the substrate along the plate thickness direction are different.
The circuit assembly according to any one of claims 1 to 3 . At least one of the first fixing portion and the second fixing portion
The first connection terminal and the second connection terminal are fixed to the circuit case without going through the board to which the second connection terminal is connected.
The circuit assembly according to any one of claims 1 to 4 . The component body is
The board is located near the place where it is fixed to the circuit case.
The circuit assembly according to any one of claims 1 to 5 . It is an electric compressor for vehicles installed in vehicles.
The circuit assembly according to any one of claims 1 to 6 .
A motor to which drive current is supplied from the circuit assembly,
An electric compressor for a vehicle, comprising a compression mechanism that compresses a fluid by power transmitted from the motor.

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