CN116576082A

CN116576082A - Pump device

Info

Publication number: CN116576082A
Application number: CN202310864336.1A
Authority: CN
Inventors: 戴宏鸣; 张炜; 杨冬德
Original assignee: Weisheng Automotive Technology Ningbo Co ltd
Current assignee: Weisheng Automotive Technology Ningbo Co ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2023-08-11

Abstract

The application provides a pump device, which belongs to the technical field of water pumps, and comprises a pump body and a pump cover detachably connected with the pump body, wherein an impeller is arranged in the pump cover, a spiral cavity is arranged in the pump body, a volumetric pump screw is fixedly connected to the impeller, the volumetric pump screw can rotate in the spiral cavity, a screw driving piece is arranged in the pump body and is in driving connection with the volumetric pump screw, a water inlet and a first water outlet which are communicated are arranged on the pump cover, and a second water outlet is also arranged on the pump body and is communicated with the water inlet on the pump cover; the electronic water pump has the advantages that the impeller is arranged in the pump cover to drive liquid to circulate so as to realize the function of the centrifugal pump, and the screw rod of the volumetric pump and the spiral cavity are matched to drive liquid to circulate so as to realize the function of the volumetric pump, namely, the electronic water pump can collect the characteristics of the centrifugal pump and the volumetric pump, and can also improve the self-priming capacity of the water pump while transporting more liquid flow under the same lift condition.

Description

Pump device

Technical Field

The application belongs to the technical field of water pumps, and particularly relates to a pump device.

Background

The automobile heat management system mainly integrates the relation between heat and the engine and the whole automobile from the angles of system integration and whole, and mainly heats or cools the system and controls the temperature of the whole system, thereby optimizing the environmental protection and energy saving purposes of the whole automobile; the pump device is used as an important part in the system, and mainly drives the impeller to enable the cooling liquid to circularly flow in the whole system through the rotation of the rotor driven by the controller, so that the purposes of cooling and heating are achieved. However, the existing pump device also has some problems in use: the self-priming function cannot be completely realized, and the water inlet pipe can start working only after being filled with media; and the flow and the lift are in a negative correlation, and the flow gradually decreases along with the increase of the lift.

Disclosure of Invention

The application aims to solve the problems in the prior art, and provides a pump device which has strong self-priming capability and can transport more liquid flow under the same lift.

The aim of the application can be achieved by the following technical scheme: the utility model provides a pump device, includes the pump body and with the pump cover that the pump body can dismantle the connection, be provided with the impeller in the pump cover, be provided with the spiral chamber in the pump body, fixedly connected with displacement pump screw on the impeller, the displacement pump screw can be in the spiral intracavity internal rotation, still be provided with in the pump body screw drive piece with displacement pump screw drive is connected, be provided with the water inlet and the first delivery port that are linked together on the pump cover, still be provided with the second delivery port on the pump body with the water inlet on the pump cover is linked together, and the liquid passes through the water inlet flows towards respectively first delivery port with the second delivery port, just first delivery port with the second delivery port is in the pump body is linked together outward.

In the above-mentioned pump device, the screw driving piece is including setting up in the pump body can drive the stator module of displacement pump screw operation, still be provided with the water jacket in the pump body, be formed with stator seal chamber between water jacket and the pump body, be provided with spiral structure on the inner wall of water jacket and form the spiral chamber, just the water jacket is kept away from the one end of pump body is provided with the opening and forms the second delivery port.

In the pump device, a connecting shaft is fixedly arranged in the pump body along the length direction of the volumetric pump screw rod, and the impeller and the volumetric pump screw rod are sleeved on the connecting shaft and are in rotary connection with the connecting shaft.

In the pump device, a limiting block is fixedly arranged in the pump cover, the upper end of the connecting shaft is fixed with the limiting block, and when the impeller moves towards the direction of the pump cover, the upper end face of the impeller abuts against the limiting block.

In the pump device, a gasket is further arranged between the limiting block and the impeller and sleeved on the connecting shaft.

In the above pump device, the spacer is further provided with a connecting portion, so that the spacer is detachably connected with the stopper.

In the above-mentioned pump device, the connecting portion includes a plurality of connecting plates that surround the outer periphery of gasket interval distribution, the cross sectional area of stopper is towards keeping away from the direction of the pump body reduces gradually, every connecting plate keep away from the tip of the pump body is all inwards buckled, when the gasket is followed break away from on the stopper, the connecting plate with the stopper offsets.

In the above pump device, one end of each connecting plate, which is far away from the pump body, is bent to form a transition plate, and the transition plate is bent outwards.

In the above pump device, a plurality of positioning grooves are formed in the outer wall surrounding the limiting block at intervals, the number of the positioning grooves corresponds to that of the connecting plates, and each connecting plate is respectively clamped in the corresponding positioning groove.

In the pump device, a lapping table is fixedly arranged on the outer wall of the pump body, a first sealing groove is formed in the step surface of the lapping table, a first sealing ring is placed in the first sealing groove, a lapping edge is fixedly arranged on the outer wall of the water-proof sleeve, and when the water-proof sleeve is placed in the pump body, the lapping edge abuts against the lapping table to clamp and fix the first sealing ring.

Compared with the prior art, the application has the beneficial effects that:

(1) The electronic water pump can integrate the characteristics of the centrifugal pump and the positive displacement pump, and can transport more liquid flow under the same lift condition;

(2) The pump body and the pump cover are respectively provided with the water outlets, liquid flows to the first water outlet and the second water outlet after passing through the water inlet, and the liquid flows to the second water outlet after passing through the water inlet and then passes through the spiral cavity, so that the self-priming capability of the water pump can be effectively improved;

(3) The connecting plate can be clamped in the positioning groove to limit the position of the connecting plate, so that the gasket and the limiting block are prevented from relatively displacing to cause abrasion to the limiting block in the rotation process of the impeller, and the service life of the water pump is influenced.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic cross-sectional view of the present application;

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

FIG. 4 is an enlarged partial schematic view at B in FIG. 2;

FIG. 5 is a schematic perspective view of a gasket of the present application;

fig. 6 is a schematic perspective view of a pump cover according to the present application.

In the figures, a pump body 100; a pump cover 101; an impeller 102; a displacement pump screw 103; a water inlet 104; a first water outlet 105; a second water outlet 106; a positioning assembly 107; a water blocking sleeve 108; a connection shaft 109; a stopper 110; a spacer 111; a connection plate 112; a transition plate 113; a positioning groove 114; a lapping table 115; a first seal groove 116; a first seal ring 117; a scrap edge 118; a second seal ring 119; and a second seal groove 120.

Description of the embodiments

The following are specific embodiments of the present application and the technical solutions of the present application will be further described with reference to the accompanying drawings, but the present application is not limited to these embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1-6, a pump device comprises a pump body 100 and a pump cover 101 detachably connected with the pump body 100, wherein an impeller 102 is arranged in the pump cover 101, a spiral cavity is arranged in the pump body 100, a volumetric pump screw 103 is fixedly connected to the impeller 102, the volumetric pump screw 103 can rotate in the spiral cavity, a screw driving piece is further arranged in the pump body 100 and is in driving connection with the volumetric pump screw 103, a water inlet 104 communicated with the pump cover 101 is further arranged on the pump cover 101 and is communicated with a first water outlet 105, a second water outlet 106 is further arranged on the pump body 100 and is communicated with the water inlet 104 on the pump cover 101, liquid flows to the first water outlet 105 and the second water outlet 106 respectively through the water inlet 104, and the first water outlet 105 and the second water outlet 106 are communicated outside the pump body 100.

In this embodiment, the impeller 102 is disposed in the pump cover 101 to drive the liquid to circulate so as to realize the function of the centrifugal pump, the volumetric pump screw 103 is disposed in the pump body 100 and fixed with the impeller 102, so that the volumetric pump screw 103 can rotate synchronously with the impeller 102, the volumetric pump screw 103 cooperates with the spiral cavity to drive the liquid to circulate so as to realize the function of the volumetric pump, that is, the electronic water pump in the application can integrate the characteristics of the centrifugal pump and the volumetric pump, and can transport more liquid flow under the same lift condition; in the application, the pump body 100 and the pump cover 101 are both provided with water outlets, liquid flows to the first water outlet 105 and the second water outlet 106 after passing through the water inlet 104, and the liquid flows to the second water outlet 106 after passing through the water inlet 104 and then passes through the spiral cavity, so that the self-priming capability of the water pump can be effectively improved.

It should be noted that the pump device of the present application may be used in combination with an expansion kettle, and the first water outlet 105 and the second water outlet 106 are both in communication with the expansion kettle.

Preferably, the screw driving member comprises a stator assembly 107 arranged in the pump body 100 and capable of driving the volumetric pump screw 103 to operate, a water blocking sleeve 108 is further arranged in the pump body 100, a stator sealing cavity is formed between the water blocking sleeve 108 and the pump body 100, the stator assembly 107 is arranged in the stator sealing cavity, a spiral structure is arranged on the inner wall of the water blocking sleeve 108 to form a spiral cavity, and one end, far away from the pump cover 101, of the water blocking sleeve 108 is provided with an opening to form a second water outlet 106.

In this embodiment, the volumetric pump screw 103 in the pump body 100 is matched with the stator assembly 107, so that the volumetric pump screw 103 not only can be used as a component part of the volumetric pump, but also can be used as a driving source of the impeller 102 to drive the impeller 102 to operate, thereby reducing the number of parts in the water pump, and reducing the installation occupation volume and the part failure rate of the water pump.

Preferably, a connecting shaft 109 is fixedly provided in the pump body 100 along the longitudinal direction of the volumetric pump screw 103, and the impeller 102 and the volumetric pump screw 103 are both sleeved on the connecting shaft 109 and are rotatably connected with the connecting shaft 109.

It should be noted that, at least two bearings are sleeved on the connecting shaft 109, and the impeller 102 and the volumetric pump screw 103 are respectively fixed with corresponding bearing outer rings.

Further preferably, a stopper 110 is fixedly arranged in the pump cover 101, the upper end of the connecting shaft 109 is fixed with the stopper 110, and when the impeller 102 moves toward the pump cover 101, the upper end surface of the impeller 102 abuts against the stopper 110.

In this embodiment, the stopper 110 may abut against the upper end surface of the impeller 102, so as to prevent the impeller 102 from moving toward the pump cover 101 during operation of the impeller 102.

Further preferably, a gasket 111 is further disposed between the limiting block 110 and the impeller 102 and sleeved on the connecting shaft 109.

In this embodiment, the spacer 111 is disposed between the limiting block 110 and the impeller 102, so as to prevent the impeller 102 from directly contacting the limiting block 110, reduce friction loss between the limiting block 110 and the impeller 102, and prolong the service life of the water pump.

Preferably, a connection portion is further provided on the spacer 111, so that the spacer 111 is detachably connected with the stopper 110.

In this embodiment, the connection portion is provided on the gasket 111, so that during the assembly process of the pump cover 101, the pump cover 101 and the gasket 111 can be preassembled, and then the pump cover 101 and the connection shaft 109 can be inserted and fixed, so as to reduce the assembly time.

Further preferably, the connection portion includes a plurality of connection plates 112 spaced around the outer circumferential surface of the spacer 111, the cross-sectional area of the stopper 110 is gradually reduced toward a direction away from the pump body 100, and an end portion of each connection plate 112 away from the pump body 100 is bent inward, and when the spacer 111 is disengaged from the stopper 110, the connection plates 112 are abutted against the stopper 110.

In this embodiment, the connection plate 112 bends towards the direction of the limiting block 110 to surround the limiting block 110, so that the gasket 111 is prevented from falling off from the pump cover 101 in the assembly process, and meanwhile, the position of the gasket 111 on the pump cover 101 is limited, so that the gasket 111 is conveniently positioned.

Further preferably, an end of each connecting plate 112, which is far away from the pump body 100, is bent with a transition plate 113, and the transition plates 113 are bent outwards.

In this embodiment, when the gasket 111 and the pump cover 101 are assembled, the limiting block 110 may abut against the transition plate 113, and press the transition plate 113 along the direction of the transition plate 113 to drive the connecting plate 112 to bend outwards, so that the limiting block 110 is conveniently clamped in the connecting plate 112, and the assembly time between the gasket 111 and the pump cover 101 is reduced.

Further preferably, a plurality of positioning grooves 114 are arranged around the outer wall of the limiting block 110 at intervals, the positioning grooves 114 correspond to the number of the connecting plates 112, and each connecting plate 112 is respectively clamped in the corresponding positioning groove 114.

In this embodiment, the connection plate 112 may be clamped in the positioning slot 114 to limit the position of the connection plate 112, so as to prevent the pad 111 and the stopper 110 from being relatively displaced during the rotation of the impeller 102, thereby wearing the stopper 110 and affecting the service life of the water pump.

Further preferably, a platform 115 is fixedly arranged on the outer wall of the pump body 100, a first sealing groove 116 is arranged on a step surface of the platform 115, a first sealing ring 117 is placed in the first sealing groove 116, a flange 118 is fixedly arranged on the outer wall of the water blocking sleeve 108, and when the water blocking sleeve 108 is placed in the pump body 100, the flange 118 abuts against the platform 115 to clamp and fix the first sealing ring 117.

In this embodiment, a first sealing groove 116 is provided on a lapping platform 115 located on the outer wall of the pump body 100, a first sealing ring 117 is placed in the first sealing groove 116, when the water-blocking sleeve 108 is placed in the pump body 100, the lapping edge 118 abuts against the lapping platform 115 to clamp and fix the first sealing ring 117, so that the assembly is convenient, and the sealing effect is good.

It should be noted that, the second sealing groove 120 for placing the second sealing ring 119 is provided on the flange 118 on the outer wall of the water blocking sleeve 108, so when the pump cover 101 is fixed with the pump body 100, the pump cover 101 and the flange 118 cooperate to clamp and fix the second sealing ring 119.

It should be noted that the description of the present application as it relates to "first", "second", "a", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "coupled," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally formed, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present application may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present application.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the application or exceeding the scope of the application as defined in the accompanying claims.

Claims

1. The utility model provides a pump device, includes the pump body and with the pump cover that the pump body can dismantle the connection, be provided with the impeller in the pump cover, a serial communication port, be provided with the spiral chamber in the pump body, fixedly connected with positive displacement pump screw on the impeller, the positive displacement pump screw can be in the spiral intracavity rotation, still be provided with in the pump body screw drive spare with positive displacement pump screw drive is connected, be provided with the water inlet and the first delivery port that are linked together on the pump cover, still be provided with the second delivery port on the pump body with the water inlet on the pump cover is linked together, and liquid is through the water inlet flows towards respectively first delivery port with the second delivery port, just first delivery port with the second delivery port is in be linked together outside the pump body, screw drive spare is including setting up can drive in the pump body positive displacement pump screw moving stator module, still be provided with the water jacket in the pump body, be formed with stator seal chamber between water jacket and the pump body, stator module installs in the stator seal chamber, be provided with spiral structure on the inner wall of water jacket and form the spiral structure and separate from the water jacket forms the second delivery port and is kept away from the pump body setting up the opening.

2. The pump device according to claim 1, wherein a connecting shaft is fixedly arranged in the pump body along the length direction of the volumetric pump screw, and the impeller and the volumetric pump screw are sleeved on the connecting shaft and are in rotary connection with the connecting shaft.

3. The pump device according to claim 2, wherein a stopper is fixedly provided in the pump cover, and an upper end of the connecting shaft is fixed to the stopper, and when the impeller moves in a direction toward the pump cover, an upper end surface of the impeller abuts against the stopper.

4. A pump device according to claim 3, wherein a spacer is further provided between the stopper and the impeller and is sleeved on the connecting shaft.

5. The pump apparatus of claim 4, wherein the spacer is further provided with a connection portion to allow a detachable connection between the spacer and the stopper.

6. A pump device according to claim 5, wherein the connecting portion comprises a plurality of connecting plates spaced around the outer circumferential surface of the spacer, the cross-sectional area of the stopper is gradually reduced in a direction away from the pump body, and each of the connecting plates is bent inward at an end portion away from the pump body, the connecting plates abutting against the stopper when the spacer is disengaged from the stopper.

7. A pump assembly according to claim 6, wherein each of the web portions is bent at an end thereof remote from the pump body to form a transition plate, the transition plate being bent outwardly.

8. The pump device of claim 6, wherein a plurality of positioning grooves are formed in the outer wall surrounding the limiting block at intervals, the positioning grooves correspond to the number of the connecting plates, and each connecting plate is respectively clamped in the corresponding positioning groove.

9. The pump device according to claim 1, wherein a lapping table is fixedly arranged on the outer wall of the pump body, a first sealing groove is arranged on the step surface of the lapping table, a first sealing ring is placed in the first sealing groove, a lapping edge is fixedly arranged on the outer wall of the water-proof sleeve, and when the water-proof sleeve is placed in the pump body, the lapping edge and the lapping table prop against each other to clamp and fix the first sealing ring.