CN218041097U - Motor assembly with external heat dissipation structure and gas water heater comprising same - Google Patents

Abstract

The utility model provides a motor component with an external heat dissipation structure and a gas water heater comprising the same, which comprises a motor body and a heat dissipation part, wherein the heat dissipation part comprises a flow dividing device and a plurality of coil pipes used for accommodating cooling media; the coil pipes are arranged around the circumference of the motor body, and the plurality of coil pipes are arranged in parallel along the axial direction of the motor body; each coil is connected with the flow dividing device, so that the cooling medium enters the plurality of coils from the flow dividing device respectively. In the scheme, the heat dissipation part comprises a plurality of coil pipes, and the coil pipes are arranged around the circumferential direction of the motor body to achieve a uniform cooling effect on all positions of the circumferential direction of the motor; a plurality of coil pipes are arranged side by side along motor body's axial, and every coil pipe all is connected with diverging device, and the coolant liquid evenly flows into each coil pipe through diverging device for the ascending coil pipe of motor axial direction has balanced temperature, plays the effect of evenly cooling to each position of motor axial, avoids the overheated condition to appear in the motor part, prolongs the life of motor.

Description

Motor assembly with external heat dissipation structure and gas water heater comprising same

Technical Field

The utility model particularly relates to an external heat radiation structure's motor element and contain its gas heater.

Background

The existing gas water heater usually adopts a fan structure to provide enough oxygen for combustion gas or exhaust the combusted waste gas. The fan structure adopted by common gas water heaters in the market can be divided into a lower fan or an upper fan. Especially, the structure of the upper fan is that the distance between the position of the fan and the combustion position is closer to the lower fan, and the temperature of the working environment of the fan is high. When the fan works, the direct current motor winding in the fan can generate heat, and the temperature of the working environment of the motor is further increased. The long-term operation under high temperature environment can shorten the life of motor.

In patent document CN 201660449U, a gas water heater is disclosed, which comprises a heat exchange system, a combustion system, a smoke exhaust system and a water cooling circulation system, wherein at least a part of the water cooling circulation system is adjacent to a fan. But this technical scheme is more limited to motor operational environment's cooling effect, probably leads to the inhomogeneous problem of heat dissipation because of water cooling circulation system's mounting structure simultaneously.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the radiating effect of fan is poor in order to overcome gas heater, leads to operational environment temperature height, winding to generate heat and shorten motor life's defect, provides an external heat radiation structure's motor element and contains its gas heater.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a motor assembly with an external heat dissipation structure comprises a motor body and a heat dissipation part, wherein the heat dissipation part comprises a shunting device and a plurality of coils for accommodating a cooling medium;

the coil pipes are arranged around the circumference of the motor body, and a plurality of coil pipes are arranged in parallel along the axial direction of the motor body;

each coil pipe is connected with the flow dividing device, so that the cooling medium enters the plurality of coil pipes from the flow dividing device respectively.

In this scheme, the radiating part contains a plurality of coils, and the coil pipe sets up round motor body's circumference, plays even cooling effect to each position of motor circumference, avoids the overheated condition to appear in the part of motor, prolongs the life of motor. A plurality of coil pipes are arranged side by side along motor body's axial, and every coil pipe all is connected with diverging device, and the coolant liquid evenly flows into each coil pipe through diverging device for the ascending coil pipe of motor axial direction has balanced temperature, plays the effect of evenly cooling to each position of motor axial, avoids the overheated condition to appear in the motor part, prolongs the life of motor.

Preferably, the coil comprises a first interface, a second interface and a pipe body; the pipe body is arranged around the side wall of the motor body, and the first interface and the second interface are arranged on the side wall of the pipe body along the radial direction of the motor body; one of the first interface and the second interface is used for allowing the cooling medium to flow into the pipe body, and the other interface is used for allowing the cooling medium to flow out of the pipe body.

In this scheme, the coil pipe includes first interface, second interface and body, one in first interface and the second interface is used for supplying cooling medium to flow in the body, another supplies cooling medium to flow out the body, cooling medium has the only definite direction of flow in the body inside, the lower cooling medium of temperature flows in the body through one of them interface, the temperature rises after cooling the motor, the higher cooling medium of temperature flows through another interface, avoid the uneven condition of or taking place to be detained of distribution of cooling medium in the body, ensure the cooling effect of coil pipe to the motor body, the life of extension motor.

The body encircles the lateral wall setting of motor body, and each position of motor circumference has the body to pass through, has ensured the radiating part to the cooling effect of motor body, the life of extension motor.

Preferably, the coil pipe includes a first baffle disposed inside the pipe body along an axial direction of the motor body and located between the first port and the second port.

In this scheme, the coil pipe contains first baffle, and first baffle sets up inside the body along motor body's axial direction, and is located between first interface and the second interface. The pipe body is arranged around the side wall of the motor body, and the first baffle is arranged to prevent the first interface and the second interface from generating an uneven flow direction, so that the cooling medium cannot be uniformly distributed in the pipe body; through the mode that sets up first baffle, simplify the manufacturing process of coil pipe, reduce the manufacturing cost of coil pipe, be convenient for follow-up first interface, second interface are connected with diverging device respectively, simplify the assembly process of heat dissipation part.

Preferably, the flow diversion device comprises a first chamber and a second chamber;

the first interface of each coil is connected with the first chamber; the second port of each coil is connected to the second chamber.

In this scheme, diverging device contains first cavity and second cavity, and one cavity in first cavity and the second cavity is shunted coolant, and coolant passes through the coil pipe, gathers and flows in subsequent part in another cavity. The first interface of each coil pipe is connected with the first chamber; the second interface of every coil pipe all is connected with the second cavity, when guaranteeing to shunt coolant, coolant has not flowed into the coil pipe, and the coolant temperature that flows into the coil pipe inside after the reposition of redundant personnel is lower, ensures the radiating part to the radiating effect of motor body, the life of extension motor.

Preferably, the flow dividing device extends along the axial direction of the motor, and a second baffle is arranged inside the flow dividing device along the axial direction of the motor to form a first chamber and a second chamber.

In this scheme, the coil pipe is arranged side by side along motor body's axial, and diverging device extends along motor axial, is convenient for carry out fixed connection with the coil pipe, simplifies the equipment of radiating part.

The second baffle is arranged inside the flow dividing device along the axial direction of the motor to form a first cavity and a second cavity, the shapes of the first cavity and the second cavity are matched with the shapes of the first interface and the second interface respectively, the first cavity is connected with the first interface of each coil pipe conveniently or the second cavity is connected with the second interface of each coil pipe, and the assembly of the heat dissipation part is simplified.

Preferably, the first interface and the second interface of each coil pipe are provided with connecting pipes so as to communicate the first interface with the first chamber or communicate the second interface with the second chamber.

In the scheme, the first interface and the second interface of each coil pipe are respectively provided with a connecting pipe so as to communicate the first interface with the first cavity or communicate the second interface with the second cavity, and meanwhile, the shunting device and the coil pipes are fixed, and the shunting device is arranged on the circumferential periphery of the motor, so that the assembly of the heat dissipation part is facilitated; a gap is reserved between the shunting device and the interface of the coil pipe, so that the sealing condition between the shunting device and the coil pipe can be directly observed, and subsequent maintenance and inspection are facilitated.

Preferably, the flow dividing device further comprises a liquid inlet and a liquid outlet;

the liquid inlet is communicated with the first cavity, and the liquid outlet is communicated with the second cavity.

In this scheme, diverging device contains inlet and liquid outlet for connect the pipeline that supplies coolant to flow in or flow the radiating part, ensure under the long-time condition of working of motor, the inside coolant's of radiating part temperature is lower, improves the cooling effect of radiating part, the life of extension motor.

Wherein inlet and first cavity intercommunication, liquid outlet and second cavity intercommunication, cooling medium get into the body respectively after through diverging device, flow from the liquid outlet after cooling off the motor, prevent that cooling medium from not flowing into the coil pipe and directly flowing out from the liquid outlet, ensure the radiating effect of radiating part, prolong the life of motor.

Preferably, the motor body comprises a shell and a motor winding, wherein the shell is of a cylindrical structure with one open end; the axis of the shell is superposed with the axis of the motor winding; the coil pipe is arranged on the outer side wall of the shell.

In the scheme, the coil pipe is arranged on the outer side wall of the motor shell, the shunting device is fixed on the coil pipe through the connecting pipe, and the heat dissipation part is fixedly connected with the motor shell, so that the connection relation between the heat dissipation part and the motor body is simplified, and the assembly of the motor assembly with the external heat dissipation structure is facilitated; the radiating part can directly cool down the motor winding, improves the cooling effect of the radiating part on the motor winding, and prolongs the service life of the motor.

The shell is of a cylindrical structure with an opening at one end, the axis of the shell is overlapped with the axis of the motor winding and matched with the shape of the motor winding, and after the coil is arranged, heat can be uniformly dissipated to all circumferential positions of the motor winding, so that the service life of the motor is prolonged.

Preferably, the motor body further comprises a PCB board,

the heat dissipation part comprises a heat dissipation end cover, and the heat dissipation end cover is arranged on one side, away from the motor winding, of the PCB.

In this scheme, the radiating part contains the heat dissipation end cover, and the heat dissipation end cover sets up in one side that the PCB board kept away from motor winding, with the lateral wall integrated into one piece of the motor casing at coil pipe place, better protection motor prevents that the motor from receiving damage and pollution, the life of extension motor in work.

A gas water heater comprises a fan assembly and a heat exchanger, wherein the fan assembly further comprises a motor assembly with the external heat dissipation structure, and the heat dissipation part is connected with the heat exchanger.

In this scheme, the radiating part is connected with the heat exchanger, when adopting water as coolant, after cooling down the motor through the radiating part, the temperature of water risees, has obtained preheating, and reentrant heat exchanger carries out the secondary heating, is used as hot-water outflow gas heater at last, and the produced heat of make full use of motor during operation realizes used heat and recycles, improves the heating efficiency of water heater, reduces the energy consumption.

The utility model discloses an actively advance the effect and lie in: a plurality of coil pipes that contain of radiating part, the coil pipe sets up round motor body's circumference, play even cooling effect to each position of motor circumference, a plurality of coil pipes are arranged side by side along motor body's axial, every coil pipe all is connected with diverging device, the coolant liquid evenly flows in each coil pipe through diverging device, make the ascending coil pipe of motor axial direction have balanced temperature, play the effect of evenly cooling to each position of motor axial, avoid the overheated condition to appear in the motor part, the life of extension motor.

Drawings

Fig. 1 is a schematic perspective view of a motor assembly with an external heat dissipation structure according to the present invention;

fig. 2 is an enlarged schematic view of a coil pipe in a motor assembly of an external heat dissipation structure according to the present invention;

fig. 3 is a schematic perspective view of a shunt device in a motor assembly with an external heat dissipation structure according to the present invention;

fig. 4 isbase:Sub>A schematic cross-sectional view ofbase:Sub>A shunt device in the motor assembly of the external heat dissipation structure shown in fig. 3 along the directionbase:Sub>A-base:Sub>A;

fig. 5 is a sectional view of the external heat dissipation structure after the motor assembly and the fan are assembled.

Reference numerals

Heat dissipation part 1

Coil pipe 2

Flow divider 3

Heat radiation end cap 4

First interface 21

Second interface 22

Pipe body 23

First baffle 24

First chamber 31

Second chamber 32

Liquid inlet 33

Liquid outlet 34

Connecting pipe 35

Second baffle 36

Motor body 5

Motor winding 51

PCB board 52

Outer side wall 6

Blower 7

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

The utility model provides a motor component with an external heat dissipation structure, which comprises a motor body 5 and a heat dissipation part 1, wherein the heat dissipation part 1 comprises a shunting device 3 and a plurality of coil pipes 2 for accommodating cooling media; the coil pipes 2 are arranged around the circumference of the motor body 5, and a plurality of coil pipes 2 are arranged in parallel along the axial direction of the motor body 5; each coil 2 is connected with a flow dividing device 3, so that the cooling medium enters the multiple coils 2 from the flow dividing device 3 respectively.

In the present embodiment, as shown in fig. 1 and 4, the heat dissipation portion 1 includes a plurality of coils 2, and the coils 2 are disposed around the circumference of the motor body 5, so as to achieve a uniform cooling effect on each position of the circumference of the motor, thereby avoiding a situation of local overheating of the motor; a plurality of coil pipes 2 are arranged side by side along motor body 5's axial, and every coil pipe 2 all is connected with diverging device 3, and the coolant liquid evenly flows in each coil pipe 2 through diverging device 3 for coil pipe 2 on the motor axial direction has balanced temperature, plays the effect of evenly cooling to each position of motor axial, avoids the overheated condition to appear in the motor part, prolongs the life of motor.

In specific implementation, as shown in fig. 2, the coil 2 includes a first interface 21, a second interface 22 and a tube 23, one of the first interface 21 and the second interface 22 is used for allowing a cooling medium to flow into the tube 23, and the other is used for allowing the cooling medium to flow out of the tube 23, the cooling medium has a uniquely determined flow direction inside the tube 23, the cooling medium with a lower temperature flows into the tube 23 through one of the interfaces, the temperature rises after the motor is cooled, and the cooling medium with a higher temperature flows out through the other interface, so that the condition that the cooling medium is unevenly distributed or stays in the tube 23 is avoided, the cooling effect of the coil 2 on the motor body 5 is ensured, and the service life of the motor is prolonged.

As a preferred embodiment, the centers of the first interface 21 and the second interface 22 of each coil 2 can be in the same line in the axial direction of the motor, so as to facilitate the subsequent connection with the flow dividing device 3 and simplify the assembly process of the heat dissipation part 1.

In specific implementation, as shown in fig. 1 and 2, the pipe 23 is disposed around the side wall of the motor body 5, and the pipe 23 passes through each position in the circumferential direction of the motor, so that the cooling effect of the heat dissipation portion 1 on the motor body 5 is ensured, and the service life of the motor is prolonged.

In a specific implementation, as shown in fig. 2, the coil 2 includes a first baffle 24, and the first baffle 24 is disposed inside the tube 23 along an axial direction of the motor body 5 and located between the first port 21 and the second port 22. The pipe body 23 is arranged around the side wall of the motor body 5, and the first baffle 24 is arranged to prevent a non-unique flowing direction from occurring between the first interface 21 and the second interface 22, so that the cooling medium cannot be uniformly distributed in the pipe body 23; through the mode that sets up first baffle 24, simplify the manufacturing process of coil pipe 2, reduce the manufacturing cost of coil pipe 2, be convenient for follow-up first interface 21, second interface 22 are connected with diverging device 3 respectively, simplify the assembly process of heat dissipation portion 1.

As a preferred embodiment, when the centers of the first interface 21 and the second interface 22 of each coil 2 can be in the same line in the axial direction of the motor, the first baffle 24 of each coil 2 can be integrally disposed, so as to simplify the manufacturing process of the coil 2 and reduce the manufacturing cost of the heat sink 1.

In a specific implementation, as shown in fig. 4, the flow dividing device 3 includes a first chamber 31 and a second chamber 32, one of the first chamber 31 and the second chamber 32 divides the cooling medium, and the cooling medium passes through the coil 2, and then is collected in the other chamber and flows into a subsequent portion. The first port 21 of each coil 2 is connected to the first chamber 31; the second interface 22 of every coil pipe 2 all is connected with second cavity 32, when guaranteeing to shunt cooling medium, cooling medium has not flowed into coil pipe 2, and the inside cooling medium temperature that flows into coil pipe 2 after the reposition of redundant personnel is lower, ensures the radiating part 1 to the radiating effect of motor body 5, the life of extension motor.

Wherein the shape of the first chamber 31 and the second chamber 32 is not particularly limited. In the embodiment, the first chamber 31 and the second chamber 32 are symmetrically shaped, and during subsequent assembly, the symmetrical structure can reduce the occurrence of assembly errors.

In specific implementation, as shown in fig. 4, a second baffle 36 is disposed inside the flow dividing device 3 along the axial direction of the motor to form a first chamber 31 and a second chamber 32, the shapes of the first chamber 31 and the second chamber 32 are respectively matched with the shapes of the first connector 21 and the second connector 22, so that the first chamber 31 is connected with the first connector 21 of each coil 2 or the second chamber 32 is connected with the second connector 22 of each coil 2, and the assembly of the heat dissipation portion 1 is simplified.

In this embodiment, the first chamber 31 and the second chamber 32 are inside to be slender cubes, and the long sides thereof are matched with the plurality of coil pipes 2 along the length in the axial direction of the motor, and the width should not be too wide, so as to avoid influencing the over-large volume of the flow dividing device 3 and causing inconvenience in installation and fixation.

In specific implementation, as shown in fig. 1, 3 and 4, the first interface 21 and the second interface 22 of each coil 2 are provided with a connecting pipe 35 to communicate the first interface 21 with the first chamber 31 or communicate the second interface 22 with the second chamber 32, and a gap is left between the shunting device 3 and the interfaces of the coils 2, so that the sealing condition between the shunting device 3 and the coils 2 can be directly observed, and subsequent maintenance and inspection are facilitated.

In this embodiment, the connecting pipe 35 material is the same with diverging device 3 and coil pipe 2's material, all adopts the metal material, and its heat conduction effect is better, and is higher to the radiating efficiency of motor body 5, and diverging device 3 can be fixed to the connecting pipe 35 of metal material simultaneously, omits the part that additionally is used for fixed diverging device 3, has simplified the structure of radiating part 1.

In this embodiment, as shown in fig. 3 and 4, the flow dividing device 3 includes a liquid inlet 33 and a liquid outlet 34, and is used for connecting a pipeline through which a cooling medium flows into or out of the heat dissipation portion 1, so as to ensure that the temperature of the cooling medium inside the heat dissipation portion 1 is low when the motor works for a long time, improve the cooling effect of the heat dissipation portion 1, and prolong the service life of the motor.

Wherein inlet 33 and first cavity 31 intercommunication, liquid outlet 34 and second cavity 32 intercommunication, cooling medium get into body 23 respectively after passing through diverging device 3, flow out from liquid outlet 34 after cooling the motor, prevent that cooling medium from not flowing into coil pipe 2 and directly flowing out from liquid outlet 34, ensure the radiating effect of radiating part 1, prolong the life of motor.

In this embodiment, as shown in fig. 5, the coil 2 is disposed on the outer sidewall 6 of the motor housing, the shunt device 3 is fixed to the coil 2 through the connecting pipe 35, and the heat dissipation portion 1 is fixedly connected to the motor housing, so that the connection relationship between the heat dissipation portion 1 and the motor body 5 is simplified, and the assembly of the motor assembly of the external heat dissipation structure is facilitated; the heat dissipation part 1 can directly cool the motor winding 51, so that the cooling effect of the heat dissipation part 1 on the motor winding 51 is improved, and the service life of the motor is prolonged.

The shell is of a cylindrical structure with an opening at one end, the axis of the shell is overlapped with the axis of the motor winding 51 and matched with the shape of the motor winding 51, and after the coil pipe 2 is arranged, heat can be uniformly dissipated to all circumferential positions of the motor winding 51, so that the service life of the motor is prolonged.

In this embodiment, as shown in fig. 5, the heat dissipating portion 1 includes a heat dissipating end cap 4, the heat dissipating end cap 4 is disposed on a side of the PCB 52 away from the motor winding 51, and is integrally formed with the outer side wall 6 of the motor housing where the coil 2 is located, so as to better protect the motor, prevent the motor from being damaged and polluted during operation, and prolong the service life of the motor.

In the present embodiment, the motor is used for a gas water heater, wherein the gas water heater comprises a fan assembly and a heat exchanger, wherein the fan assembly comprises a motor, a heat dissipation part 1 and a motor body 5.

As a better implementation mode, when water is used as a cooling medium, after the motor is cooled by the heat dissipation part 1, the temperature of the water rises to be preheated, then the water enters the heat exchanger to be heated for the second time, and finally the water is used as hot water to flow out of the gas water heater.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (10)

1. The utility model provides an external heat radiation structure's motor element, contains motor body and heat dissipation part, its characterized in that: the heat dissipation part comprises a flow dividing device and a plurality of coils for containing cooling media;

the coil pipes are arranged around the circumference of the motor body, and the plurality of coil pipes are arranged in parallel along the axial direction of the motor body;

each coil pipe is connected with the flow dividing device, so that the cooling medium enters the plurality of coil pipes from the flow dividing device respectively.

2. The motor assembly with an external heat dissipation structure as recited in claim 1, wherein the coil comprises a first port, a second port and a tube body; the pipe body is arranged around the side wall of the motor body, and the first interface and the second interface are arranged on the side wall of the pipe body along the radial direction of the motor body; one of the first interface and the second interface is used for allowing the cooling medium to flow into the pipe body, and the other interface is used for allowing the cooling medium to flow out of the pipe body.

3. The motor assembly with the external heat dissipation structure as recited in claim 2, wherein the coil comprises a first baffle, and the first baffle is disposed inside the tube along an axial direction of the motor body and located between the first port and the second port.

4. The motor assembly with an external heat dissipation structure as recited in claim 1, wherein the flow dividing device comprises a first chamber and a second chamber;

the first interface of each coil is connected with the first chamber; the second port of each coil is connected to the second chamber.

5. The motor assembly with an external heat dissipation structure as recited in claim 4, wherein the flow divider extends along the axial direction of the motor, and a second baffle is disposed inside the flow divider along the axial direction of the motor to form a first chamber and a second chamber.

6. The motor assembly with an external heat dissipation structure as recited in claim 4, wherein the first port and the second port of each coil are provided with a connection pipe to connect the first port with the first chamber or the second port with the second chamber.

7. The external heat dissipation structural motor assembly as recited in claim 4, wherein the flow divider further comprises a liquid inlet and a liquid outlet;

the liquid inlet is communicated with the first cavity, and the liquid outlet is communicated with the second cavity.

8. The motor assembly with the external heat dissipation structure as recited in any one of claims 1 to 7, wherein the motor body comprises a shell and a motor winding, and the shell is a cylindrical structure with one open end; the axis of the shell is superposed with the axis of the motor winding; the coil pipe is arranged on the outer side wall of the shell.

9. The motor assembly with external heat dissipation structure as defined in claim 8, wherein the motor body further comprises a PCB,

the heat dissipation part comprises a heat dissipation end cover, and the heat dissipation end cover is arranged on one side, away from the motor winding, of the PCB.

10. A gas water heater, comprising a fan assembly and a heat exchanger, wherein the fan assembly further comprises a motor assembly of the external heat dissipation structure as claimed in any one of claims 1 to 9, and the heat dissipation part is connected with the heat exchanger.

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