KR20130081874A - Water cooling jacket type pump - Google Patents

Abstract

PURPOSE: A water cooling jacket type pump is provided to simplify the connection process of a coil lead line and to reduce the consumption of sealing members which are used for sealing the area of the coil lead line. CONSTITUTION: A water cooling jacket type pump comprises a housing (110), a motor, and an impeller. The housing has one side on which an inlet is formed, one side end on which an outlet is formed, and the other side end on which a first through hole is formed. The motor comprises a case, a rotary shaft, and a stator. The case has an outer surface which is spaced from the inner side of the housing, installed inside the housing, and composed of a first connection hole which is connected the first through hole on the side. The rotary shaft is supported by the case, and rotatably installed on the case. The stator rotates the rotary shaft, and has a coil which is connected to an external power supply by being exposed through the first connection hole and the first through hole to the outside. The impeller is rotated by the rotary shaft, forcibly makes liquid to flow through the inlet into the gap between the housing and the upper case inside the housing, and discharges the liquid through the outlet.

Description

Water channel pump {WATER COOLING JACKET TYPE PUMP}

The present invention relates to a channel-type pump.

A pump is a device that transports liquid by the action of a motor. Pumps include air cooling to cool the motor using air, and water cooling to cool the motor using a liquid such as water. The channel is a type of water cooling.

A conventional channel pump will be described with reference to FIG. 1. 1 is a partially exploded perspective view of a conventional channel pump.

As shown, a housing having an upper housing 11a and a lower housing 11b coupled to each other is provided, and a motor is installed inside the housing.

The motor is a case 21 for forming an airtight space therein, a rotating shaft 23 supported on the upper and lower sides of the case 21 and rotatably fixed to the rotating shaft 23 and rotating the rotating shaft 23. And a stator (not shown) that is fixed to the case 21 and rotates the rotor.

The upper surface of the case 21 is provided with a condenser 27 to which any one of the lead wires 25a of the coil (not shown) of the stator is connected, and the condenser 27 is sealed and protected on the upper surface of the case 21. Cover 29 is coupled. The other of the lead wires 25aa passes through the cover 29 and the upper housing 11a and is connected to the external lead wires 15.

An impeller 13 coupled to the rotating shaft 23 and rotating together with the rotating shaft 23 is installed inside the lower housing 11b. The impeller 13 discharges the liquid introduced into the lower housing 11b to the outside of the upper surface of the upper housing 11a by force. At this time, the liquid introduced into the lower housing 11b is introduced between the inner surface of the housing and the outer surface of the case 21 and then discharged to the outside of the upper surface of the upper housing 11a, thereby cooling the motor.

In the conventional water-repellent pump as described above, since the lead wire 25a is not exposed to the outside of the housing, one of the lead wires 25a passes through the case 21 and connected to the condenser 27, and the other The lead wires 25a are penetrated to the upper side of the cover 29 and the upper housing 11a to be connected to the external lead wires 15. Therefore, the connection work of the lead wire 15 is complicated, and since many sealing members for sealing around the lead wire 15 are required, the cost increases.

Reference numeral 17 is a strainer, 19 is an O-ring.

Prior art related to a channel-type pump is disclosed in Korea Patent Publication No. 10-2011-0057904 filed by the present applicant.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a waterway-type pump that can reduce the cost.

A water channel pump according to the present invention for achieving the above object, the inlet is formed on one side and the outlet is formed on one side, the other side of the housing formed with a first through hole; An outer surface is spaced apart from an inner surface of the housing and is installed inside the housing, and a side surface has a first communication hole formed in communication with the first through hole, a rotating shaft supported by the case and rotatably installed on the inner surface of the case. A motor including a stator fixed to rotate the rotary shaft and having a coil exposed to the outside through the first communication hole and the first through hole and connected to an external power source; And an impeller installed in the inlet side of the housing and forcibly introducing liquid into the housing through the inlet and flowing between the housing and the case through the inlet, while being discharged to the outlet.

The case is a cylindrical frame in which the stator is supported, a first outer frame coupled to one end surface of the frame and having the first communication hole formed therein, and a second outer side inserted and coupled to an inner surface of the other end side of the frame. Has a frame, the first cover is coupled to the outer surface of the first outer frame and one side surface side of the frame, the second cover is coupled to the outer surface of the other end side of the frame, the first cover and the second cover Are coupled to each other to support the first outer frame and the second outer frame to be coupled to the frame, and the first cover has a second communication hole communicating with the first communication hole.

In the channel-type pump according to the present invention, the lead wire of the coil is exposed to the outside of the housing and connected to the controller. Therefore, the process of connecting the lead wires of the coil is simple and the sealing member for sealing the lead wire portion of the coil is required less, thereby reducing the cost.

The frame of the case of the motor in which the stator is in constant contact with the liquid is formed of stainless steel, and is inserted into the first outer frame and the other end side of the frame, which are in contact with one end of the frame. The second outer frame is made of aluminum, the first cover for receiving one side of the first outer frame and one side of the frame and the second cover for receiving the other end side of the frame is formed of a synthetic resin material. Therefore, the cost is further reduced as compared with forming the entire case of the motor from stainless steel.

1 is a partially exploded perspective view of a conventional channel pump.
Figure 2 is a perspective view of the waterway pump according to an embodiment of the present invention.
3 is a partially exploded perspective view of FIG. 2;
4 is a perspective view of FIG. 3 viewed from the left side;
5 is a cross-sectional view taken along the line “AA” of FIG. 2.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are mutually exclusive, but need not be mutually exclusive. For example, certain shapes, specific structures, and features described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with the embodiments. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. The length, area, thickness, and shape of the embodiments shown in the drawings may be exaggerated for convenience.

Hereinafter, with reference to the accompanying drawings will be described in detail the waterway-type pump according to an embodiment of the present invention.

FIG. 2 is a perspective view of a water channel pump according to an embodiment of the present invention, FIG. 3 is a partially exploded perspective view of FIG. 2, and FIG. 4 is a perspective view of FIG. 3 viewed from the left side.

As shown, a housing 110 is provided which is placed at an installation place such as a floor. The housing 110 has a first housing 111 in which an impeller (not shown) is embedded and a first housing 115 in which the motor 130 is embedded. An inlet 112 through which liquid is introduced is formed on the left side of the first housing 111, and an outlet 116 through which the liquid is discharged on the outer surface of the second housing 115 adjacent to the first housing 111 and the right side. Is formed.

Hereinafter, in referring to the surface and the direction of the other components including the housing 110, the surface and the direction toward the left in the longitudinal direction of the housing 110 is referred to as "left and left", the longitudinal right of the housing 110. "Right and right" facing surfaces and directions "right and right", faces and directions facing radially upwards of housing 110 "upper and upper", faces and directions facing radially downwards of housing 110 "lower and lower" This is called.

The impeller installed inside the first housing 111 rotates the liquid introduced into the inlet 112 while being forced between the housing 110 and the motor 130 to be discharged to the outlet 116.

The motor 130 installed inside the second housing 115 includes a case 131, a first cover 134, a second cover 135, a rotation shaft 139, a rotor (not shown), and a stator (not shown). )

The case 131 is formed inside the cylindrical frame 131a, the first outer frame 131b coupled to one end surface side of the frame 131a, and the other end surface side of the frame 131a. The second outer frame 131c is inserted and coupled, and a sealed space is formed therein. The outer surface of the frame 131a of the case 131 is spaced apart from the inner surface of the second housing 115, and flows between the frame 131a of the case 131 and the second housing 115 by the rotation of the impeller. The prepared liquid cools the case 131 to cool the motor 120.

The first cover 134 accommodates an outer surface of the first outer frame 131b and an outer surface of one end surface of the frame 131a, and an outer circumferential surface of the right end side of the frame 131a is connected to an inner circumferential surface of the second cover 135. Inserts are combined. In addition, the first cover 134 and the second cover 135 are mutually coupled by the fastening member 136, the first outer frame (134) by the first cover 134 and the second cover 135 coupled to each other ( 131b and the second outer frame 131c are firmly coupled to the frame 131a.

In addition, between the frame 131a and the contact surface of the first cover 134 and between the frame 131a and the contact surface of the second cover 135, between the frame 131a and the first outer frame 131b and the frame 131a. And a sealing member 137 sealing between the second cover 135, respectively.

The rotating shaft 139 is supported by the case 131 and rotatably installed. More specifically, the left side portion of the rotation shaft 139 passes through the first outer frame 131b and is supported by the first outer frame 131b, and the right portion is supported by the second outer frame 131c.

A plurality of support ribs 117 are formed on an inner surface of the second housing 115 along a length direction of the second housing 115, and outer support surfaces of the first and second covers 134 and 134 are provided on the support ribs 117. This contact is supported. Thus, a gap is formed between the inner surface of the second housing 115 and the outer surface of the frame 131a of the case 131.

On the outer circumferential surface of the frame 131a, a plurality of ring-shaped embossings 131aa are formed along the circumferential direction of the frame 131a. The embossing 131aa adjacent to the first cover 134 side contacts the inner circumferential surface of the first cover 134aa, and the embossing 131aa adjacent to the second cover 135 side contacts the inner circumferential surface of the second cover 135. do.

The impeller is installed on the left end side of the rotating shaft 139, and the impeller rotates as the rotating shaft 139 rotates, forcing the liquid introduced through the inlet 112 to the housing 110 and the case 131. Inflow is discharged through the outlet 116.

The rotor is installed on the rotating shaft 139 and rotates together with the rotating shaft 139.

The stator is fixed to an inner surface of the frame 131a and has a core (not shown) surrounding the rotor and a coil wound on the core (not shown). Thus, when a current is applied to the coil, the rotor rotates by rotating the rotor 139 by the action of the rotor and the stator.

Among the parts of the motor 130, heat is generated most in the parts of the stator including the coil. However, since the frame 131a in which the stator is installed is cooled by liquid, the motor 130 is prevented from being damaged by heat.

In addition, in the channel-type pump according to the present embodiment, the frame 131a which is in constant contact with the liquid is formed of stainless steel, and the first outer frame 131b is inserted into and coupled to the inside of the first cover 134 and sealed. ) And the second outer frame 131c inserted into and coupled to the inside of the frame 131a are formed of an aluminum material, and the first cover 134 and the second cover 135 are formed of a synthetic resin material. Therefore, the cost is reduced as compared with the case 131 formed entirely of stainless steel.

The lead wire of the coil passes through the first outer frame 131b, the first cover 134, and the second housing 115 to be exposed to the outside. To this end, the outer surface of the second housing 115, the outer surface of the first outer frame 131b and the outer surface of the first cover 134, the first through-hole (115a), the first communication hole (131ba) and the first communicating with each other Two communicating holes 134a are formed, respectively. Therefore, the lead wire of the coil is exposed to the outside through the first communication hole 131ba → the second communication hole 134a → the first through hole 115a.

The first outer frame 131b is accommodated and coupled to the inside of the first cover 134, and the first communication hole 131ba and the second communication communicate with each other between the first outer frame 131b and the first cover 134. The balls 134a are each formed. Therefore, the first communication hole 131ba and the second communication hole 134a communicate with each other only when the first outer frame 131b is accurately coupled to the inner predetermined position of the first cover 134. To this end, the outer surface of the first outer frame 131b and the inner surface of the first cover 134 are inserted into and coupled to each other to form a position display groove 131bb and a position display rail 134b, respectively.

The control unit 140 is installed on the outer surface of the second housing 115 in which the first through hole 115a is formed, and the lead wire of the coil is connected to the control unit 140. In the channel-type pump according to the present embodiment, since the lead wire of the coil is exposed to the outside of the second housing 115 and connected to the controller 140, the connection process of the lead wire of the coil is simple.

The control unit 140 is connected to a pressure sensing means (not shown) such as a pressure switch or a pressure sensor for sensing the pressure of the space between the second housing 115 and the case 131. The pressure sensing means detects a pressure in the space between the second housing 115 and the case 131, and the controller 140 receives a signal from the pressure sensing means to drive or stop the motor 130. Then, the impeller is rotated or stopped.

The pressure tank 150 communicated with the inside of the housing 110 is installed on the right side of the second housing 115. The pressure tank 150 compensates by absorbing or supplementing the pressure in the space between the second housing 115 and the case 131, so that the pressure sensing means is used in the space between the second housing 115 and the case 131. Prevents immediate operation in response to pressure changes.

Reference numeral 143 in FIGS. 3 and 4 is a sealing member.

The pressure tank 150 has a support frame 151, a cover 153, a diaphragm 155, an elastic member 157, and a pressure transfer plate 159, and a second housing outside the second housing 115. It is installed in the right side of 115.

The pressure tank 150 will be described with reference to FIGS. 2 and 5. FIG. 5 is a cross-sectional view taken along the line “A-A” of FIG. 2.

As shown, a second through hole 118 is formed on the right side of the second housing 115 to communicate the inside and outside of the second housing 115.

The support frame 151 has a cross-sectional shape formed in a ring shape to protrude on the right side of the second housing 115, and is formed to surround the second through hole 118 to form a second through hole 118. ) Concentric with

The cover 153 is open on the left side and the inner surface is inserted and coupled to the outer surface of the support frame 151. Therefore, the cover 153 is also concentric with the second through hole 118 while surrounding the second through hole 118, and is coupled to the right side surface of the second housing 115.

The diaphragm 155 is installed inside the support frame 151. More specifically, the outer surface of the diaphragm 155 is supported by being in contact with the inner surface of the support frame 151, and based on the second through hole 118, the second housing 115 and the case 131 ( 3) and an inner space of the support frame 151.

Thus, when the pressure of the space between the second housing 115 and the case 131 rises above a predetermined value and the liquid flows into the support frame 151 through the second through hole 118, the second housing contracts while being contracted. Absorbs pressure in the space between the 115 and the case 131, and expands when the pressure in the space between the second housing 115 and the case 131 drops to a predetermined value or more, thereby expanding the liquid inside the support frame 151. The pressure is discharged between the second housing 115 and the case 131 through the second through hole 118 to compensate for the pressure in the space between the second housing 115 and the case 131.

The diaphragm 155 is formed in a cylindrical shape. At this time, the left side of the diaphragm 155 facing the right side of the second housing 115 is sealed, and the right side of the diaphragm 155 facing the right side of the cover 153 is opened. In addition, the diaphragm 155 is formed in the shape of a corrugated pipe so as to be stable and easily stretched.

The elastic member 157 is interposed between the left side of the diaphragm 155 and the right side of the cover 153 to elastically support the diaphragm 155 toward the second through hole 118.

The pressure transfer plate 159 is installed inside the diaphragm 155. The pressure transfer plate 159 contacts the inner surface of the diaphragm 155 to support the diaphragm 155, and at the same time, transmits the contracting force of the diaphragm 155 to the elastic member 157, thereby providing an elastic member ( The elastic force of 157 is transmitted to the diaphragm 155.

In order to firmly install the elastic member 157, the right side surfaces of the pressure transmission plate 159 and the cover 153 support and support tubes 159a and 159a to which the left and right portions of the elastic member 157 are inserted. Grooves 153a are formed, respectively.

The sealing frame 155a protrudes outward from the outer peripheral surface of the right end surface of the diaphragm 155. The sealing frame 155a is interposed between the end face of the support frame 151 and the right side of the cover 153, between the diaphragm 155 and the support frame 151, and between the diaphragm 155 and the cover 153. Seal). Therefore, the space between the second housing 115 and the case 131 and the internal space of the support frame 151 are partitioned by the diaphragm 155 based on the second through hole 118.

The cross section of the support frame 151 and the cross section of the support frame 151 to seal more firmly between the diaphragm 155 and the support frame 151 and between the diaphragm 155 and the cover 153 by the sealing frame 155a. Settle grooves 151a and 153b into which the sealing frame 155a is inserted are formed on the right side of the cover 153, respectively.

In the water channel pump according to the present embodiment, since the pressure tank 150 is inserted into the cover 153, the pressure tank 150 is not damaged even by an external impact.

The operation of the pressure tank 150 will be described. Assume that the motor 130 is stopped and the left side of the diaphragm 155 is in contact with the right side of the housing 110 as an initial state.

In the initial state, when the motor 130 is driven to rotate the impeller, liquid is introduced between the second housing 115 and the case 131 by the impeller. Then, when the pressure in the space between the second housing 115 and the case 131 rises and the pressure in the space between the second housing 115 and the case 131 rises above a predetermined value, the second through hole ( The liquid flows into the support frame 151 through the 118. Then, the diaphragm 155 is contracted to absorb the pressure of the space between the second housing 115 and the case 131.

Thereafter, when the pressure in the space between the second housing 115 and the case 131 drops to a predetermined value or more, the diaphragm 155 is driven by the elastic force of the elastic member 157 and the elastic force of the diaphragm 155. The liquid is expanded and returned to the original state, whereby the liquid introduced into the support frame 151 is discharged between the second housing 115 and the case 131 through the second through hole 118. Therefore, the pressure in the space between the second housing 115 and the case 131 is supplemented.

In the above, the present invention has been described in accordance with the embodiments of the present invention, but those skilled in the art to which the present invention belongs, the changes and modifications within the scope without departing from the spirit of the present invention. Of course.

110: Housing
130: motor
131: Case
131a: frame
131b: first outer frame
131c: second outer frame
134: first cover
135: second cover

Claims (13)

A housing having an inlet formed on one side thereof, an outlet formed on one side thereof, and a first through hole formed on the other side thereof;
An outer surface is spaced apart from an inner surface of the housing and is installed inside the housing, and a side surface has a first communication hole formed in communication with the first through hole, a rotating shaft supported by the case and rotatably installed on the inner surface of the case. A motor including a stator fixed to rotate the rotary shaft and having a coil exposed to the outside through the first communication hole and the first through hole and connected to an external power source;
And an impeller installed in the inlet side of the housing and forcibly introducing liquid into the housing through the inlet and flowing between the housing and the case through the inlet, while being discharged to the outlet.
The case is a cylindrical frame in which the stator is supported, a first outer frame coupled to one end surface of the frame and having the first communication hole formed therein, and a second outer side inserted and coupled to an inner surface of the other end side of the frame. Take the frame,
A first cover is coupled to an outer surface of the first outer frame and an outer surface of one side of the frame, and a second cover is coupled to an outer surface of the other end of the frame.
The first cover and the second cover is coupled to each other to support the first outer frame and the second outer frame to be coupled to the frame,
The first channel pump is characterized in that the second communication hole formed in communication with the first communication hole is formed. The method of claim 1,
And a plurality of support ribs are formed on an inner surface of the housing along a longitudinal direction of the housing and in contact with an outer surface of the first cover and an outer surface of the second cover. The method of claim 2,
On the outer circumferential surface of the frame a plurality of ring-shaped embossing is formed along the circumferential direction of the frame,
The embossing formed on one end side of the frame is in contact with the inner surface of the first cover, the embossing formed on the other end surface of the frame is in contact with the inner surface of the second cover. The method of claim 1,
And a sealing member is interposed between the frame and the first cover and between the frame and the second cover. The method of claim 1,
And said frame is made of stainless steel, said first outer frame and said second outer frame are aluminum, and said first cover and said second cover are synthetic resins. The method of claim 1,
A water pump according to claim 1, wherein the outer surface of the first outer frame and the inner surface of the first cover are inserted into and coupled to each other to indicate a coupling position. The method of claim 1,
On the other surface of the housing is formed a second through hole for communicating the inside and outside of the housing,
And a pressure tank installed on the other surface of the housing to cover the second through hole to absorb or supplement the pressure in the space between the housing and the case. The method of claim 7, wherein
The pressure tank,
A support frame formed on the other surface of the housing to surround the second through hole;
A cover having an inner surface inserted and coupled to an outer surface of the support frame;
The support frame is installed inside the support frame and partitions the space between the housing and the case and the internal space of the support frame, and contracts according to the pressure change of the space between the housing and the case and between the housing and the case. A diaphragm that absorbs pressure in the space and expands to compensate for the pressure in the space between the housing and the case;
And an elastic member interposed between the diaphragm and the cover to elastically support the diaphragm toward the second through hole. 9. The method of claim 8,
The diaphragm pump is characterized in that formed in the form of a corrugated pipe. 10. The method of claim 9,
One surface of the diaphragm facing the housing is sealed, and the other surface of the diaphragm facing the cover is opened.
An electrophoretic channel type is installed in the diaphragm to support the diaphragm and simultaneously transmit a contracting force of the diaphragm to the elastic member, and a pressure transfer plate to transmit the elastic force of the elastic member to the diaphragm. Pump. The method of claim 10,
On the other surface of the pressure transfer plate and the cover, the pump-type pump, characterized in that the support tube and the support groove, each of which is supported by inserting one side and the other side of the elastic member. 12. The method of claim 11,
A sealing frame protrudes from the outer circumferential surface of the other surface of the diaphragm,
And the sealing frame is interposed between the end face of the support frame and the cover to seal between the diaphragm and the support frame and between the diaphragm and the cover. The method of claim 12,
The support frame and the cover is a hydro channel pump, characterized in that each of the settled groove is formed with the sealing frame is inserted.

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