CN207363898U - A kind of draining pump for fixing external protector - Google Patents

Abstract

A kind of draining pump for fixing external protector; including the pump housing, rotor assembly, stator core, protector and coil block; coil block includes coil windings and the plastic casing being wrapped in outside coil windings; protector is connected with coil windings by conducting wire and extended outside plastic casing; the plastic casing is externally provided with the accommodating chamber for loading protector, it is characterised in that：An elastomer is further included, which forms interference fit between protector side and accommodating chamber side.Protector is stably fixed in the accommodating chamber of plastic casing by the utility model by elastomer, so as to solve the problems, such as that protector efficiency of assembling is low and stability is poor.

Description

A kind of draining pump for fixing external protector

Technical field

It the utility model is related to a kind of draining pump, more particularly to a kind of draining pump with external protector.

Background technology

The coil of small compact radial draining pump uses plastic package structure, and protector turns on connection with coil windings, and by leading Line is drawn in outside the plastic packaging housing of coil overmold, and the lateral surface of plastic packaging housing is equipped with the chamber of assembling protector.

Existing assembly technology is first to pour into conduction heat sealable glue in chamber, and then protector is assemblied in chamber, then The filling heat-conductive fluid sealant into chamber is until colloid is totally submerged protector.There are problems with for this assembly technology：

1. being difficult to ensure that in chamber whether be full of filling with sealant during encapsulating, after prolonged use, thermal protector can go out Now shift or come off；

2. needing to wait the solidification of colloid after the completion of encapsulating, production efficiency is relatively low.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of simple in structure, and production efficiency is high and stablizes The draining pump of the strong external protector of fixation of property.

Technical solution is used by the utility model：A kind of draining pump for fixing external protector, including the pump housing, rotor Component, stator core, protector and coil block, coil block include coil windings and the plastic housing being wrapped in outside coil windings Body, protector are connected with coil windings by conducting wire and extended outside plastic casing, and plastic casing is externally provided with to be protected for loading The accommodating chamber of device is protected, it further includes an elastomer, which formed between protector side and accommodating chamber side It is full of cooperation.

Further, elastomer is venetian blind type structure, i.e., is provided with through hole in a plane, and through hole edge has toward accommodating chamber The elastic strip that side or protector side tilt.

Further, elastomer is surrounding band position-limited edge, and top surface is the structure of open type.

Further, elastic strip has angle with elastomer, and the end of the elastomer is dentalation.

Further, it is 17~47 ° that angular range is formed between elastic strip and elastomer.

Further, the one side of the protector accommodating chamber of plastic housing is equipped with installing port.

The utility model makes to be provided with elastomer in the coil windings plastic housing accommodating chamber for being equipped with external protector Protector is assemblied in accommodating chamber with interference.Protector comes off in order to prevent, and the surrounding of elastomer is band position-limited edge, surface band There is the structure of the elastic strip of past accommodating chamber side or protector side tilting.Further, the end of elastic strip is dentalation, Make the protector after assembling more securely in plastic housing accommodating chamber, so as to simplify assembly technology and lift the stabilization of product Property.

In order to better understand and implement, describe the utility model in detail below in conjunction with the accompanying drawings.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model draining pump；

Fig. 2 is the structure diagram of the utility model coil block；

Fig. 3 is the sectional view in the utility model Fig. 1 draining pump configuration A-A directions；

Fig. 4 is the structure diagram of the utility model elastomer；

Fig. 5 is the side structure schematic diagram of the utility model elastomer；

Wherein,

The 1- pump housings, 2- rotor assembly, 3- protectors, 4- stator cores, 5- coil blocks, 6- coil windings, 7- plastic housings Body, 7.1- accommodating chambers, 7.2- installing ports, 8- conducting wires, 9- elastomers, 9.1- position-limited edges, 9.2- through holes, 9.3- elastic strips.

Embodiment

It is to be understood that upper and lower, left and right in this specification, directional terms are to be directed to upwards, downwards, to the left, to the right The description in the orientation shown in attached drawing, these orientation are not restricted.If without certain illustrated, term herein to Interior, outside, inside and outside, inner side, outside refer to the scope relative to part centre, such as using electrical axis as reference, it is interior and interior Side refers to closer to or is directed toward position or the orientation of electrical axis, and outer and outside refers to further from motor center position.In addition, term It is horizontal, the term such as hold up, dangle and be not offered as requiring component abswolute level or pendency, and permission can be slightly tilted.Such as level Simply mean to more horizontal for its direction opposed vertical, be not to represent that the structure is fully horizontal, but can be slightly tilted.

As depicted in figs. 1 and 2, a kind of draining pump for fixing external protector, including the pump housing 1, it is assemblied in pump housing rotor chamber Interior rotor assembly 2, protector 3, the stator core 4 and coil block 5 being fixed on outside the pump housing.Coil block 5 is by coil windings 6 form with the plastic casing 7 being wrapped in outside coil windings.Protector 3 is connected just with coil windings 6 by the conducting of conducting wire 8, and is extended To the outside of plastic casing 7.The outer surface of plastic casing 7 is equipped with accommodating chamber 7.1.As shown in figure 3, the row of fixed external protector Water pump further includes the elastomer 9 between 7.1 side of 3 side of protector and accommodating chamber, the elastomer 9 make protector 3 with Interference fit is formed between accommodating chamber 7.1.

As shown in figure 4, elastomer 9 is surrounding band position-limited edge 9.1, top surface is the structure of open type.The elastomer 9 and protection The planar structure that device 3 contacts opens shutter similar to instrument and equipment wall box for ventilation and heat.That is elastomer 9 and protection The contact plane of device 3 offers through hole 9.2, and 9.2 edge of through hole has the elastic strip 9.3 tilted toward 7.1 side of accommodating chamber, elasticity The end of bar 9.3 is dentalation.As shown in figure 5, elastic strip 9.3 is along the surface of elastomer 9 toward outer lug, and with elastomer 9 An angle α is formed, the angular range of α is 17 °~47 °, and the angle of the present embodiment is preferably 17 °.Certainly, elastic strip can also change For the form tilted to 3 side of protector.

As shown in Fig. 2, the installation of protector 3 for convenience, installing port is offered on the inner cavity side of accommodating chamber 7.1 7.2。

During utility model works, elastomer 9 is installed in the coil windings accommodating chamber 7.1 equipped with external protector 3, Make to form interference fit between protector 3 and accommodating chamber 7.1.Further, dentation knot is offered in the end of elastic strip 9.3 Structure, when elastomer 9 is assemblied in accommodating chamber 7.1, the dentalation of elastic strip and the inner surface of accommodating chamber are formed and are buckled to, and make guarantor Shield device can be assemblied in accommodating chamber securely.So as to solve the problems, such as that existing assembly technology is unstable low with efficiency.

The utility model is not limited to the above embodiment, if the various changes or deformation to the utility model do not take off From the spirit and scope of the utility model, if these changes and deformation belong to the claims and equivalents of the utility model Within the scope of, then the utility model is also intended to comprising these changes and deformation.

Claims (6)

1. a kind of draining pump for fixing external protector, including the pump housing, rotor assembly, stator core, protector and coil block, Coil block includes coil windings and the plastic casing being wrapped in outside coil windings, and protector is connected by conducting wire with coil windings And extend outside plastic casing, the plastic casing is externally provided with the accommodating chamber for loading protector, it is characterised in that：Also wrap An elastomer is included, which forms interference fit between protector side and accommodating chamber side.

2. the draining pump of the external protector of fixation according to claim 1, it is characterised in that：The elastomer is shutter Formula structure, i.e., be provided with through hole in a plane, and through hole edge has the elastic strip tilted toward accommodating chamber side or protector side.

3. the draining pump of the external protector of fixation according to claim 1 or 2, it is characterised in that：The elastomer is four Week, top surface was the structure of open type with position-limited edge.

4. the draining pump of the external protector of fixation according to claim 2, it is characterised in that：The elastic strip and elasticity Body has angle, and the end of the elastic strip is dentalation.

5. the draining pump of the external protector of fixation according to claim 4, it is characterised in that：The elastic strip and elastomer Between formed angular range be 17~47 °.

6. the draining pump of the external protector of fixation according to claim 1, it is characterised in that：The protector of the plastic housing The one side of accommodating chamber is equipped with installing port.