JPS6342119B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a capacitor mounting device for an electric pump.

[Conventional technology]

As shown in Japanese Patent Application Laid-open No. 52-126501, a conventional capacitor mounting device for an electric pump involves attaching a steel plate support with a capacitor attached to the top surface of an electric motor using screws. It is known that a space is formed between the motor and the motor.

[Problem that the invention seeks to solve]

Such capacitor mounting devices are designed to prevent the temperature of the capacitor from rising by creating a space between the capacitor and the motor, but by creating such a space, the lead wires extending from the motor can There was a risk that the insulation would deteriorate due to contact with the housing. Further, since the support plate on which the capacitor is mounted is made of a steel plate, the surface on which the capacitor is placed on the support plate tends to become hot due to radiant heat from the motor housing, which has a negative effect on the life of the capacitor. Further, since no consideration has been given to the connection between the lead wire from the motor and the capacitor and the connection between the power supply line and the capacitor, various inconveniences have occurred.

[Means for solving problems]

The present invention has been made to solve this problem, and includes a capacitor base 70 made of resin, a side wall 71 rising from the periphery on the upper surface of the capacitor base 70, and a center wall 71 on the upper surface of the capacitor base 70. A capacitor stopper 74 is formed in the upper part of the capacitor base 70 so as to protrude upward, and the capacitor 6 is mounted on the upper surface of the capacitor base 70 into the side wall 71 and the capacitor stopper 74 so that the upper surface thereof protrudes from these.
A connector 80 for connecting the capacitor 60 to the motor 10 and a power source is stored in the space on the top surface of the capacitor base 70 where the capacitor 60 is not stored, and The integrally formed lid 72 is attached to the capacitor 6 via a hinge portion 76.
0 so as to cover only the upper part of the terminal 61 and the connector 80, a part of the side wall 71 of the capacitor base 70 is cut out to form a lead wire port 77,
A bush B in which this lead wire port 77 is provided at the outlet of the lead wires 15 and 16 from the motor 10.
The capacitor base 70 is located close to the motor 10, and a leg 75 is provided around the lower surface of the capacitor base 70, and a stopper pin 73 is provided in the center, and the stopper pin 73 is connected to the motor 10.
The capacitor base 70 is arranged so as to be in contact with the upper end of the cylindrical housing 13 and the legs 75 are in contact with both sides of the capacitor base 70 to form a space 100 between the motor 10 and the capacitor cover. 30 is box-shaped with an opening at the bottom, and the space 100 is formed on both side plates B35 of the capacitor cover 30.
A communication hole 33 is formed to communicate with the both side plates B3.
A flange A31 matching the upper surface shape of the motor 10 is formed from the lower end of the motor 5, and this flange A3
A screw groove 32 is formed in the capacitor cover 30, and a bush A52 for passing the power cord 52 is provided on the side plate B35 of the capacitor cover 30.
The capacitor base 70 and the bush B19 that house the capacitor 60 and the connector 80 are covered, and the flange A31 is brought into contact with the upper surface of the capacitor 60, and the flange A31 is brought into contact with the housing 13 of the motor 10, and the capacitor cover 30 is secured with the screws 41. A lead wire presser 78 is fixed to the housing 13 and formed on the upper part of the outer side of the lead wire port 77 of the capacitor base 70, and a lead wire presser 78 is formed between the lead wire port 77 and the lead wire presser 78 and the bush A52 of the capacitor cover 30. A capacitor mounting device for an electric pump is characterized in that a lead wire mounting 79 is formed to protrude outward from the side wall 71 of the capacitor base 70.

[Effect]

In this electric pump capacitor mounting device, the capacitor base 70 is made of resin, and a side wall 71 rising from the periphery is formed on the upper surface of the capacitor base 70.
Since the capacitor 60 is housed in the capacitor base 70, the radiant heat from the housing 13 of the motor 10 can be blocked by the capacitor base 70, and the life of the capacitor 70 can be extended. In addition, the capacitor stopper 7 is located at the center of the upper surface of the capacitor base 70.
4 is formed to protrude upward, thereby holding the capacitor 70, and storing the connector 80 using the space where the capacitor 70 is not stored, so that the capacitor 70 and the connector 80 do not come into contact with each other. , can be placed. Furthermore,
A lid 72 integrally formed on the upper surface of the side wall 71 of the capacitor base 70 via a hinge part 76 is provided so as to cover only the upper part of the terminal 61 of the capacitor 60 and the connector 80, so that water can be prevented with a simple structure. It is possible to prevent the live part from coming into contact with the metal part, and it is inexpensive and highly safe.

Moreover, the lead wire port 77 is located close to the bushing B19 provided at the outlet of the lead wires 15 and 16 from the motor 10, and the capacitor base 7
A foot 75 is provided around the lower surface of the motor 10, and a stopper pin 73 is provided in the center of the capacitor base so that the stopper pin 73 contacts the upper end of the cylindrical housing 13 of the motor 10, and the feet 75 contact both sides of the stopper pin 73. 70 to form a space 100 between it and the motor 10, and a communication hole 33 communicating with this space 100 is formed in the side plate B35 of the capacitor cover 30, so that air can flow from the communication hole 33 to the space 100. flows through the capacitor 60, preventing the temperature rise of the capacitor 60, and the lead wires 15, 16
This prevents contact between the housing 13 of the motor 10 and insulation deterioration.

Further, a lead wire holder 78 is formed above the lead wire port 77 of the capacitor base 70, and a lead wire holder 79 is placed between the lead wire port 77 and the lead wire holder 78 and the bush A52 of the capacitor cover 30. Since the power line 51 is formed to protrude outward from the side wall 71 of the motor 1, the power line 51 does not float upward and hangs downward.
0 housing 13, the power supply wire 51 can be easily handled, and insulation deterioration can be prevented.

Furthermore, since the capacitor base 70 is attached to the housing 13 via the capacitor 60 by screwing the capacitor cover 30, the installation structure can be simplified compared to the case where the capacitor cover 30 is screwed separately, and the cost can be reduced. can.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. Housing 13 of motor 10, end bracket A11, end bracket B1
2. Consisting of shaft 14, end bracket B
A flange B102 having twelve bolt holes 103 and a pump casing 20 are fixed with bolts 40, and an impeller 21 is attached to the shaft 14 to have a pump function. 30 is a capacitor cover, which has a flange A31, a screw groove 32, and ventilation holes 33 provided on both sides of the side plate B35, and has a box shape together with the side plate A34. 70 is a capacitor base, side wall 71
A peripheral rising portion is formed in which the capacitor 60 is housed. 74 is the capacitor stop, 75 is the foot, 76
is a hinge portion, and has a lid 72 sized so as not to engage with the capacitor 60. 77 is a lead wire port for passing the lead wire through which the peripheral rising part has been eliminated; 78 is a lead wire holder for preventing the passed lead wire from rising; 79 is a lead wire mounting having a rising stopper 701; 703 is a lead wire port between the legs 75. This is a ventilation portion that matches the ventilation hole 33 in the space. 51 is plug 50
52 is the capacitor cover 30
A bushing A that penetrates the power cord 51 and protects the power cord 51,
73 is a stopper pin protruding from the bottom surface of the capacitor base 70, 80 is a connector that connects the power cord 51 and the power lead wire 16 coming out from the motor 10, 15 is a capacitor lead wire, and the connection 19 to the terminal 61 of the capacitor 60 is a bush B. , 4
1 is a machine screw, 101 is a machine screw hole through which the machine screw 41 is passed, and 702 is a drain hole. Note that 18 is a main coil, and 19 is an auxiliary coil. The capacitor base 70 is made of resin. The upper surface of this capacitor base 70 has a side wall 7 rising from the periphery.
1 is formed. A capacitor stop 74 is formed at the center of the upper surface of the capacitor base 70 so as to protrude upward. The upper surface of this capacitor base 70 includes the side wall 71 and a capacitor stopper 74.
A capacitor 60 is housed inside the capacitor 60 so that its upper surface protrudes beyond the capacitor 60. The capacitor base 70
The capacitor 60 and the motor 10 are placed in the space on the upper surface where the capacitor 60 is not stored.
and a connector 80 for connection to a power source. A lid 72 is integrally formed on the upper surface of the side wall 71 of the capacitor base 70 via a hinge portion 76.
is provided so as to cover only the upper part of the terminal 61 of the capacitor 60 and the connector 80. A part of the side wall 71 of the capacitor base 70 is cut out to form a lead wire port 77.
7 to the lead wires 15 and 16 from the motor 10
The capacitor base 70 is located close to a bush B19 provided at the outlet of the capacitor. A foot 75 is provided around the lower surface of the capacitor base 70, and a stopper pin 73 is provided in the center, and the stopper pin 73 contacts the upper end of the cylindrical housing 13 of the motor 10, and the stopper pin 73 contacts the upper end of the cylindrical housing 13 of the motor 10. The capacitor base 70 is arranged so that the leg 75 comes into contact with the motor 10, and a space 100 is formed between the capacitor base 70 and the motor 10. The capacitor cover 30 has a box shape with an opening at the bottom, and a communication hole 33 communicating with the space 100 is formed in both side plates B35 of the capacitor cover 30. A flange A31 matching the upper surface shape of the motor 10 is formed from the lower end of this side plate B35, a thread groove 32 is formed on this flange A31, and a power cord 52 is formed on the side plate B35 of the capacitor cover 30.
A bushing A52 is provided for passing through. The capacitor cover 30 is brought into contact with the upper surface of the capacitor 60 by covering the capacitor base 70 housing the capacitor 60 and the connector 80 and the bush B19, and the flange A31 is attached to the motor 10.
The capacitor cover 30 is fixed to the housing 13 with screws 41. A lead wire presser 78 is formed on the upper part of the outer side of the lead wire port 77 of the capacitor base 70 . The lead wire port 77, the lead wire holder 78, and the bush A5 of the capacitor cover 30
A lead wire mount 79 is formed between the capacitor base 70 and the capacitor base 70 so as to protrude outward from the side wall 71 of the capacitor base 70.

In this electric pump capacitor mounting device, the capacitor base 70 is made of resin, and a side wall 71 rising from the periphery is formed on the upper surface of the capacitor base 70.
Since the capacitor 60 is housed in the capacitor base 70, the radiant heat from the housing 13 of the motor 10 can be blocked by the capacitor base 70, and the life of the capacitor 70 can be extended. In addition, the capacitor stopper 7 is located at the center of the upper surface of the capacitor base 70.
4 is formed to protrude upward, thereby holding the capacitor 70, and storing the connector 80 using the space where the capacitor 70 is not stored, so that the capacitor 70 and the connector 80 do not come into contact with each other. , can be placed. Furthermore,
A lid 72 integrally formed on the upper surface of the side wall 71 of the capacitor base 70 via a hinge part 76 is provided so as to cover only the upper part of the terminal 61 of the capacitor 60 and the connector 80, so that water can be prevented with a simple structure. It is possible to prevent the live part from coming into contact with the metal part, and it is inexpensive and highly safe.

Moreover, the lead wire port 77 is located close to the bush B19, which has the lead wires 15 and 16 from the motor 10 provided at the outlet, and the capacitor base 7
A foot 75 is provided around the lower surface of the motor 10, and a stopper pin 73 is provided in the center of the capacitor base so that the stopper pin 73 contacts the upper end of the cylindrical housing 13 of the motor 10, and the feet 75 contact both sides of the stopper pin 73. 70 to form a space 100 between it and the motor 10, and a communication hole 33 communicating with this space 100 is formed in the side plate B35 of the capacitor cover 30, so that air can flow from the communication hole 33 to the space 100. flows through the capacitor 60, preventing the temperature rise of the capacitor 60, and the lead wires 15, 16
This prevents contact between the housing 13 of the motor 10 and insulation deterioration.

Further, a lead wire holder 78 is formed above the lead wire port 77 of the capacitor base 70, and a lead wire holder 79 is placed between the lead wire port 77 and the lead wire holder 78 and the bush A52 of the capacitor cover 30. Since the power line 51 is formed to protrude outward from the side wall 71 of the motor 1, the power line 51 does not float upward and hangs downward.
0 housing 13, the power supply wire 51 can be easily handled, and insulation deterioration can be prevented.

Furthermore, since the capacitor base 70 is attached to the housing 13 via the capacitor 60 by screwing the capacitor cover 30, the installation structure can be simplified compared to the case where the capacitor cover 30 is screwed separately, and the cost can be reduced. can.

〔Effect of the invention〕

According to the capacitor mounting device for an electric pump of the present invention, the following effects are achieved.

Since the radiant heat from the housing 13 of the motor 10 can be blocked by the capacitor base 70, the life of the capacitor 70 can be extended.

The capacitor 70 and the connector 80 can be reliably arranged without contacting each other with the capacitor stopper 74.

With a simple configuration, it is possible to prevent water from splashing onto the terminal 61 of the capacitor 70 and the connector 80, and to prevent fingers or the like from coming into contact with the metal parts, making it possible to achieve low cost and high safety.

Since air flows from the communication hole 33 to the space 100, the temperature of the capacitor 60 can be prevented from rising, and the lead wires 15 and 16 can be connected to the motor 1.
Since there is no contact with the housing 13 of No. 0, deterioration of the insulation can be prevented.

Since the power line 51 does not float upward or hang down and come into contact with the housing 13 of the motor 10, the power line 51 can be easily handled and insulation deterioration can be prevented.

Capacitor base 70 and capacitor cover 3
Since it is possible to simplify the installation configuration of the 0, it is possible to reduce the cost.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view showing the entire electric pump of the present invention, FIG. 2 is a partially sectional back view of the same pump,
Figure 3 is a cross-sectional top view of the capacitor cover of the pump, Figure 4 is the electric circuit diagram of the pump, Figure 5 is an exploded perspective view of the entire pump, and Figure 6 is a diagram of only the capacitor base used in the pump. The back view, FIG. 7, is a diagram showing the degree of temperature rise of the pump. 10...Motor, 30...Capacitor cover, 60...Capacitor, 70...Capacitor base.

Claims (1)

[Claims] 1. The capacitor base 70 is made of resin, a side wall 71 rising from the periphery is formed on the upper surface of the capacitor base 70, and a capacitor stopper 74 is formed in the center of the upper surface of the capacitor base 70 to protrude upward. The capacitor 60 is housed on the upper surface of the side wall 71 and the capacitor stopper 74 so that the upper surface thereof protrudes from these, and the capacitor 60 and the motor 10 are stored in the space on the upper surface of the capacitor base 70 where the capacitor 60 is not housed. A lid 72 is integrally formed on the upper surface of the side wall 71 of the capacitor base 70 via a hinge part 76 so as to cover only the terminal 61 of the capacitor 60 and the connector 80. A part of the side wall 71 of the capacitor base 70 is cut out to form a lead wire port 77, and the lead wire port 77 is connected to the lead wire 1 from the motor 10.
The capacitor base 70 is positioned close to the bush B19 provided at the outlet of the motor. The capacitor base 70 is arranged so as to be in contact with the upper end of the cylindrical housing 13 of 10, and the legs 75 are in contact with both sides of the capacitor base 70, thereby forming a space 100 between the capacitor base 70 and the motor 10. cover 30
This capacitor cover 3 is box-shaped with an opening at the bottom.
A communication hole 33 that communicates with the space 100 is formed in both side plates B35 of 0, and a flange A31 that matches the upper surface shape of the motor 10 is formed from the lower end of this side plate B35, and a thread groove 32 is formed in this flange A31. The side plate B35 of the capacitor cover 30 is provided with a bushing A52 through which the power cord 52 is passed. The flange A31 is brought into contact with the upper surface of the housing 13 of the motor 10, the capacitor cover 30 is fixed to the housing 13 with screws 41, and the capacitor base 70
A lead wire holder 78 is placed on the upper part of the outer part of the lead wire port 77.
The lead wire port 77 and the lead wire holder 78 are connected to the bush A of the capacitor cover 30.
A capacitor mounting device for an electric pump, characterized in that a lead wire mounting 79 is formed between the capacitor base 70 and the capacitor base 70 so as to protrude outward from the side wall 71 of the capacitor base 70.