CN209748395U - Water pump that cooling performance is good - Google Patents

Abstract

The utility model discloses a water pump that cooling performance is good, including the pump body, set up the variable frequency controller on pump body shell, variable frequency controller is including setting up mount pad on pump body shell, setting frequency conversion circuit board, the radiating element in the mount pad, be equipped with the installation through-hole on the shell of the pump body, radiating element inlays with sealing and establishes in the installation through-hole. The utility model discloses can be fast effectively for variable frequency controller cooling, ensure variable frequency controller's normal work, do not increase the consumption of water pump motor simultaneously.

Description

Water pump that cooling performance is good

Technical Field

The utility model belongs to the technical field of water pump water supply system technique and specifically relates to a water pump that cooling performance is good is related to.

Background

The existing water supply system generally comprises a water pump and a water source, wherein the water pump conveys water from the water source to a user needing water through a pipeline. The water source is usually tap water, and the user can be a resident, a business, even a green land and the like in the building.

In the working process of a common water pump, when the water flow pressure in a pipeline reaches a certain limit, the water pump stops working, and when the water pressure in the pipeline is reduced, the water pump is restarted. During the working process of the water pump, the motor is frequently started and suspended, so that the electric quantity is lost, and the pressure, the flow and the like of a pipeline are suddenly changed. Therefore, people usually set a frequency conversion controller on the water pump, and adjust the water output of the water pump by adjusting the power supply frequency of the water pump to change the power of the water pump. When the pressure in the pipeline reaches a higher set value or the flow is smaller than a smaller set value, the downstream water demand is smaller than the water output of the water pump, and at the moment, the power of the water pump is reduced through the variable frequency controller, so that the water output of the water pump is reduced, and the water output of the water pump meets the downstream water demand; when the pressure in the pipeline reaches a lower set value or the flow is larger than a larger set value, the requirement of the downstream on the water is larger than the output water quantity of the water pump, at the moment, the power of the water pump is improved through the variable frequency controller, the output water quantity of the water pump is further reduced and increased, and the output water quantity of the water pump meets the requirement of the downstream on the water. That is to say, the variable frequency controller is favorable to reducing the frequent start-up of water pump and the stability of pipeline pressure, flow.

Because the frequency conversion controller can generate more heat when working, we need to cool the frequency conversion controller. Generally, an air cooling structure is adopted, and a heat radiation fan is used for cooling the variable frequency controller. Although the cooling mode has the characteristics of simple structure and low cost, the following defects exist: since the specific heat capacity and the thermal conductivity of air are low, the cooling effect thereof is poor. In particular, in order to simplify the structure, people generally cool the inverter controller by using a heat dissipation fan of a motor of the water pump, so that the temperature of air flow blown by the heat dissipation fan rises after the motor is cooled, thereby further affecting the cooling effect of cooling the inverter controller. In addition, the rotation of the heat radiation fan is determined by the rotation speed of the motor. When the frequency conversion controller reduces the rotating speed of the motor so as to reduce the output water quantity of the water pump, the rotating speed of the cooling fan is reduced, and therefore the cooling effect on the frequency conversion controller is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the poor problem of heat dissipation cooling effect that current water pump frequency conversion controller exists, providing a water pump that cooling performance is good, can be fast effectively for frequency conversion controller cooling, ensure frequency conversion controller's normal work, do not increase the consumption of water pump motor simultaneously.

The utility model provides a water pump that cooling performance is good, includes the pump body, sets up the variable frequency controller on pump body shell, variable frequency controller is including setting up mount pad, the variable frequency circuit board of setting in the mount pad, radiating element on pump body shell, be equipped with the installation through-hole on the shell of the pump body, radiating element inlays with sealing and establishes in the installation through-hole.

The frequency conversion controller can effectively improve the energy efficiency ratio of the water pump, so that the water pump can run more smoothly. In particular, the inverter controller generates a large amount of heat during operation, and is usually configured with a heat dissipation element and a small heat dissipation fan, the inverter controller transfers the generated heat to the heat dissipation element, and the heat dissipation fan cools the heat dissipation element. It is known that the heat dissipation fan has a limited heat dissipation effect and generates a certain amount of noise, and the heat dissipation fan is easily damaged after long-time continuous operation. In particular, when the water pump is enclosed in a mounting housing, it is difficult to quickly discharge the hot air outwardly to circulate the air. The utility model discloses set up an installation through-hole on the shell of the pump body to be used for inlaying in the installation through-hole sealedly for the radiating element of variable frequency controller. Therefore, when the water pump works, the water flowing in the pump body can quickly take away the heat of the radiating element and enters a water supply pipeline, and the radiating efficiency is effectively improved. Especially, the specific heat capacity and the thermal conductivity of water will be far greater than the specific heat capacity and the thermal conductivity of air, consequently, utilize the internal flowing water of pump to greatly promote the radiating effect for variable frequency controller heat dissipation cooling to avoid the noise of giving, simple structure need not additionally to increase device or component simultaneously, does not increase water pump motor's consumption, can ensure its long-time normal work.

Preferably, a positioning ring surrounding the mounting through hole is provided on the pump body housing so as to form a step surface between the positioning ring and the housing of the pump body, the heat dissipating element is fitted into the positioning ring, and a seal ring is provided between the heat dissipating element and the step surface.

The positioning ring can conveniently position and install the radiating element, and meanwhile, the sealing ring is conveniently arranged, so that the radiating element can reliably seal the through hole, and the water in the pump body is prevented from leaking.

Preferably, the radiating element comprises a copper radiating substrate matched in the positioning ring and an aluminum heat conducting plate attached to the radiating substrate, and heat conducting silicone grease is arranged between the heat conducting plate and the radiating substrate.

The utility model discloses a radiating element includes copper radiating basal plate and aluminium matter heat-conducting plate, on the one hand, we make the circuit board of heat-conducting plate size and variable frequency controller match as required to on the heat-conducting plate is conducted fast evenly to variable frequency circuit board's heat, on the other hand, copper radiating basal plate has great thermoconductivity, therefore can walk the heat of heat-conducting plate through the internal hosepipe of pump rapidly, can reduce the size of radiating basal plate simultaneously, thereby be favorable to reducing material cost. The heat conduction silicone grease can quickly conduct heat on the heat conduction plate to the heat dissipation substrate, and heat conduction blockage caused by untight adhesion between the heat conduction plate and the heat dissipation substrate is avoided.

Preferably, the edge of the heat dissipation substrate is provided with a surrounding edge, and the heat conduction silicone grease is arranged in a cavity formed by the surrounding edge.

The heat dissipation base plate surrounding edge forms and holds the chamber, and heat conduction silicone grease arranges in and holds the intracavity, and heat conduction silicone grease has certain mobility and heat conductivity, and heat conduction silicone grease arranges the container in, can avoid heat conduction silicone grease to outwards leak effectively.

Preferably, the heat-dissipating substrate is provided with screw columns at one side of the surrounding edge, and the heat-conducting plate is provided with fastening screws in threaded connection with the screw columns at positions corresponding to the screw columns.

Can dismantle the heat-conducting plate and be connected fixedly with the heat dissipation base plate through fastening screw, both convenient assembly can ensure the leakproofness that holds the chamber by the formation of heat dissipation base plate surrounding edge again, avoids the loss of inside heat conduction silicone grease. When the heat dissipation element is used for a certain time, the heat dissipation element can be detached, and the heat conduction silicone grease is replaced, so that the heat dissipation element is ensured to maintain a good heat dissipation effect all the time.

Preferably, the edge of the surrounding edge of the heat dissipation substrate is provided with a lug, and the lug is provided with a fastening screw in threaded connection with the pump body shell.

The radiating element is detachably connected with the pump body through the fastening screw arranged on the radiating base plate, so that the mounting is convenient, the sealing ring is convenient to dismount and replace, the sealing performance of the sealing ring can be ensured all the time, and the water in the pump body is prevented from leaking and entering the mounting seat to damage the variable frequency circuit board.

Therefore, the utility model discloses following beneficial effect has: the cooling device can quickly and effectively cool the variable frequency controller, ensures the normal work of the variable frequency controller, and simultaneously does not increase the power consumption of the water pump motor.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded schematic view of the present invention.

In the figure: 1. the pump body 11, the mounting through hole 12, the positioning ring 2, the variable frequency controller 21, the mounting seat 211, the cover plate 22, the variable frequency circuit board 3, the heat dissipation element 31, the heat dissipation substrate 311, the surrounding edge 312, the screw column 313, the lug 32, the heat conduction plate 321, the screw through hole 4 and the sealing ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the water pump with good cooling performance comprises a pump body 1 and a variable frequency controller 2 arranged on a pump body shell, wherein the variable frequency controller comprises a mounting seat 21 arranged on the pump body shell, a variable frequency circuit board 22 arranged in the mounting seat and a heat dissipation element 3 for dissipating heat of the variable frequency circuit board, a circular mounting through hole 11 is arranged on the pump body shell, and the heat dissipation element is embedded in the mounting through hole in a sealing manner.

When the water pump works, water flowing in the pump body is in direct contact with the radiating element, so that heat of the radiating element can be taken away quickly, the radiating element is cooled, and the cooling effect of the variable frequency controller is effectively improved. That is to say, the heat dissipation element becomes a part of the body shell at this moment, and devices or elements such as fans do not need to be additionally added, the power consumption of the water pump motor is not increased, noise can be avoided, and the long-time normal operation of the variable frequency controller can be ensured.

It should be noted that, a corresponding through hole may be disposed at the bottom of the mounting base, so that the heat dissipation element can extend out of the through hole and be embedded in the mounting through hole. In addition, we can set up apron 211 at the opening part of mount pad, and apron and mount pad pass through sealing strip sealing connection, avoid rainwater etc. to get into and cause the damage to frequency conversion controller in the mount pad. Of course, it is desirable to maintain a seal between the heat dissipating component and the through hole in the bottom of the mounting socket.

It should be noted that the utility model discloses can include an installation shell (not shown in the figure), the pump body and corresponding variable frequency controller set up in the installation shell to make things convenient for the installation of water pump, improve its pleasing to the eye degree.

Preferably, we can provide a positioning ring 12 on the casing of the pump body around the mounting through hole, so as to form a step surface between the positioning ring and the casing of the pump body. The part of the through hole of the heat radiating element, which extends out of the mounting seat, is matched in the positioning ring, and a sealing ring 4 is arranged between the heat radiating element and the step surface, so that the heat radiating element is ensured to reliably seal the mounting through hole, and the water in the pump body is prevented from leaking.

Further, the heat dissipation element comprises a copper heat dissipation substrate 31 which is matched with the inner circle of the positioning ring, and an aluminum heat conduction plate 32 which is attached to the heat dissipation substrate, wherein heat conduction silicone grease which is convenient for heat conduction is arranged between the heat conduction plate and the heat dissipation substrate. It can be understood that the shape and the size of the heat conducting plate can be matched with those of the frequency conversion circuit board according to requirements, so that the heat of the frequency conversion circuit board can be quickly and uniformly conducted to the heat conducting plate. In addition, the size of the mounting through hole and the copper heat dissipation substrate can be reduced as much as possible, and the material cost of the heat dissipation element is reduced on the premise of ensuring a good cooling effect. The heat conduction silicone grease can quickly conduct heat on the heat conduction plate to the heat dissipation substrate, and heat conduction blockage caused by untight adhesion between the heat conduction plate and the heat dissipation substrate is avoided.

In order to facilitate the assembly of the heat dissipation element, a surrounding edge 311 may be disposed on the edge of the heat dissipation substrate, the heat conductive silicone grease is disposed in the cavity formed by the surrounding edge, and the heat conductive plate is attached to the surrounding edge, so as to effectively prevent the heat conductive silicone grease from leaking out.

Preferably, we can set up surrounding edge one side at the heat dissipation base plate and set up screw post 312, and the heat-conducting plate then sets up screw through-hole 321 in corresponding screw post position to set up in the screw through-hole with screw post threaded connection's fastening screw, thereby make heat-conducting plate and heat dissipation base plate form and to dismantle the connection, both convenient assembly can ensure again by the leakproofness in the chamber that holds that the heat dissipation base plate surrounding edge formed, avoid the loss of inside heat conduction silicone grease. After the heat dissipation element is used for a certain time, the heat dissipation element can be detached, and the heat conduction silicone grease is replaced, so that the heat dissipation element is ensured to maintain a good heat dissipation effect all the time.

Furthermore, 4 radially extending lugs 313 can be arranged at the edge of the surrounding edge of the heat dissipation substrate, screw through holes are formed in the lugs, and fastening screws in threaded connection with the pump body shell are arranged in the screw through holes, so that the heat dissipation element and the pump body are detachably connected, the heat dissipation element and the pump body are convenient to install, the sealing ring is convenient to detach and replace, the sealing performance of the sealing ring can be ensured all the time, and the water in the pump body is prevented from leaking into the mounting seat and damaging the frequency conversion circuit board. Of course, we need to provide corresponding screw posts on the body housing.

Claims (6)

1. The utility model provides a water pump that cooling performance is good, includes the pump body, sets up the variable frequency controller on pump body shell, characterized by, variable frequency controller is including setting up mount pad on pump body shell, setting variable frequency circuit board, the radiating element in the mount pad, be equipped with the installation through-hole on the shell of the pump body, the radiating element inlays with sealing and establishes in the installation through-hole.

2. The water pump as claimed in claim 1, wherein a positioning ring is provided on the pump body housing to surround the mounting through-hole, thereby forming a step surface between the positioning ring and the housing of the pump body, the heat dissipating member is fitted into the positioning ring, and a packing is provided between the heat dissipating member and the step surface.

3. The water pump as claimed in claim 2, wherein the heat dissipating member comprises a copper heat dissipating base plate fitted into the positioning ring, an aluminum heat conducting plate attached to the heat dissipating base plate, and a heat conducting silicone grease interposed between the heat conducting plate and the heat dissipating base plate.

4. The water pump as claimed in claim 3, wherein the heat dissipating base has a peripheral edge, and the heat conductive silicone grease is disposed in a cavity formed by the peripheral edge.

5. The water pump as claimed in claim 4, wherein the heat-dissipating base plate has screw posts on a side where the surrounding edge is provided, and the heat-conducting plate has fastening screws at positions corresponding to the screw posts and screwed to the screw posts.

6. The water pump of claim 2, wherein the heat sink base plate has a flange at the peripheral edge thereof, and the flange has a fastening screw for screwing with the pump body housing.