CN212570576U

CN212570576U - Coil assembly with terminal sheath and water pump

Info

Publication number: CN212570576U
Application number: CN202021409418.5U
Authority: CN
Inventors: 蓝键安; 廖勇
Original assignee: Hanyu Group JSCL
Current assignee: Hanyu Group JSCL
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-02-19
Anticipated expiration: 2030-07-17

Abstract

The utility model provides a take coil pack and water pump of terminal sheath, coil pack includes coil former, coiling enameled wire, cartridge on the coil former, with enameled wire electric connection's binding post, through the plastic envelope portion of injection plastic shaping, parcel coil former and enameled wire, its characterized in that, still include with the socket portion that plastic envelope portion and/or binding post detachably connect, socket portion supplies the binding post to pass in order to realize binding post and external connector's electric connection. The utility model discloses simple structure, reliable process, easily production equipment.

Description

Coil assembly with terminal sheath and water pump

Technical Field

The utility model belongs to the drain pump field especially relates to a take coil pack and water pump of terminal sheath, and the IPC is categorised belongs to H02K 3/50.

Background

The inserted sheet of current water pump coil pack for prevent to be stained with water or wearing and tearing, when coil pack plastic envelope, generally mould plastics the surrounding edge around the inserted sheet and form the terminal sheath, mould plastics the terminal casing around the inserted sheet like in chinese patent CN205901507U, but the terminal sheath is moulded plastics in actual production and is taken place excessive gluey easily, influences the reliability of being connected of inserted sheet and external connector.

For terms and common knowledge, refer to the mechanical engineering handbook and the electromechanical engineering handbook, published in 1983 or 1997 of mechanical industry Press.

Disclosure of Invention

The utility model discloses the required technical problem who solves provides a coil pack and water pump of taking terminal sheath of simple structure, easily installation. The utility model adopts the following technical scheme:

the utility model provides a take coil pack of terminal sheath, includes the coil former, the enameled wire of coiling on the coil former, cartridge on the coil former, with enameled wire electric connection's binding post, through injection plastic molding, the plastic envelope portion of parcel coil former and enameled wire, its characterized in that still include with the socket portion that plastic envelope portion and/or binding post detachably connect, binding post passes socket portion and external connector electricity and is connected.

Specifically, binding post is equipped with connecting portion, socket portion includes a base member, the base member be equipped with the through-hole that the connecting portion shape suited, connecting portion pass the through-hole is in order to realize binding post and external connector's electric connection.

Preferably, the connecting portion is overlapped by bending through the through hole.

Specifically, the socket portion includes a surrounding edge provided on one side of the base and having a shape adapted to the external connector, and the surrounding edge surrounds and covers the through hole.

Specifically, binding post is equipped with location portion, the base member be equipped with location portion shape adapted's blind hole, location portion peg graft in the blind hole in order to realize binding post and socket's detachably is connected.

Specifically, socket portion is including around locating the cover shell in base member and surrounding side outside, the opening and the plastic envelope portion joint of cover shell are connected in order to realize socket portion is connected with the detachably of plastic envelope portion.

Specifically, plastic envelope portion is equipped with the boss, the opening of cover shell be equipped with the boss corresponds the knot body of matching, the knot body takes place the lock with the boss in order to realize the joint of cover shell and plastic envelope portion is connected.

Preferably, the lug boss and the buckle body are provided with chamfers, and the lug boss and the buckle body are in contact connection through inclined planes formed by the two chamfers so as to guide buckling.

Preferably, the opening of cover shell be equipped with the lead part that the button body is relative, with plastic envelope portion laminating contact.

A water pump is characterized by comprising the coil assembly.

The utility model discloses following beneficial effect has:

(1) the socket part is used as an assembly part and is detachably connected with the plastic package part and/or the wiring terminal to form the terminal sheath, the process is simple and reliable, and the yield is high.

(2) The wiring terminal is in plug-in connection with the socket part through the positioning part, and the plastic package part is in clamping connection with the socket part through the buckle structure, so that the socket part can be prevented from being displaced and loosened, and the fixed connection effect among components is enhanced.

(3) The buckle body and the boss are contacted through the inclined plane in the buckling process, so that the clamping connection between the plastic package part and the socket part is more labor-saving.

(4) The guide part keeps the laminating contact with the guide face, has injectd the direction of plastic envelope portion and socket part relative motion when the joint is connected, guarantees that the knot body takes place the lock with the boss under interference state.

(5) The tail ends of the connecting parts are bent and overlapped, so that the rigidity is increased, the connecting parts are prevented from being deformed and damaged in the electrical connection with the external connector, the contact area between the connecting parts and the contact sheet of the external connector is increased, and the connection reliability of the wiring terminal and the external connector is improved.

Drawings

FIG. 1 is a cross-sectional view of a coil assembly of example 1;

FIG. 2 is an assembly view of a coil block according to embodiment 1;

FIG. 3 is another sectional view of the coil block of embodiment 1;

FIG. 4 is a schematic view of the end of the joint part of example 1 before and after folding and overlapping;

FIG. 5 is an enlarged view of area A of FIG. 1;

fig. 6 is a sectional view of the socket part of embodiment 1;

FIG. 7 is another assembly view of the coil block of the embodiment 1;

fig. 8 is a schematic view of a water pump according to embodiment 2.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment 1 provides a coil assembly 100, which includes a coil former 10, an enamel wire 20, a connection terminal 30, a mold sealing part 40, and a socket part 50.

The coil former 10 is cylindrical, the enameled wire 20 is wound around the middle part of the coil former 10, and the connecting terminal 30 is inserted into the end part of the coil former 10 and electrically connected with the enameled wire 20. The connection and matching among the coil rack 10, the enameled wire 20 and the connection terminal 30 are common technical means in the prior art, and are not described in detail in this specification.

The plastic sealing part 40 is a plastic layer covering the surface of the coil assembly 100 by injection molding, and covers the end of the coil frame 10 and the enameled wire 20. As shown in fig. 2, the connection terminal 30 is a sheet metal body, and passes through the plastic-molded part 40 and extends a distance in a direction perpendicular to the center line of the coil frame 10. The following axial direction is understood to be the direction of the center line of the bobbin 10, and the radial direction is understood to be the direction perpendicular to the center line of the bobbin 10.

As shown in fig. 2 and 3, a portion of the connection terminal 30 extending out of the plastic package portion 40 extends in the same direction and is branched into a positioning portion 31 and a connection portion 32, the positioning portion 31 is used for the plug connection between the connection terminal 30 and the socket portion 50, and the connection portion 32 is used for the electrical connection between the connection terminal 30 and the external connector. Preferably, as shown in fig. 4, the connecting portion ends 321 are bent and overlapped to enhance rigidity and prevent the connecting portion 32 from being deformed and damaged in the electrical connection with the external connector.

As shown in fig. 1 and 5, the plastic-molded part 40 has a boss 41 protruding upward in the axial direction at an end thereof where the connection terminal 30 is mounted, for snap-fit connection with the socket part 50. The boss 41 is chamfered so that the side facing away from the centre line of the coil former is a bevel 411, the angle a between the bevel 411 and the radial plane preferably being 30 °. As shown in fig. 2, the mold sealing part 40 has a guide surface 42 around one end where the terminal 30 is mounted, and the guide surface 42 is a flat structure extending in a radial direction in parallel with the terminal 30 and used for defining a mounting direction of the socket part 50 during the clamping connection of the mold sealing part 40 and the socket part 50.

As shown in fig. 3 and 6, the socket portion 50 is formed by injection molding, and is radially fitted over the terminal 30 and connected to the plastic molded portion 40. The following mounting direction is understood to mean the direction in which the socket part 50 is fitted radially to the terminal 30. The socket portion 50 includes a base 51, a skirt 52, and a sleeve 53. The base body 51 is provided with a blind hole 511 and a through hole 512, the opening direction of the blind hole 511 is the same as the installation direction of the socket part 50, the size of the blind hole 511 is matched with the positioning part 31, and the blind hole 511 can be connected with the positioning part 31 in an inserting way, so that the socket part 50 is fixedly assembled on the wiring terminal 30. The through hole 512 penetrates the base 51 along the installation direction of the socket 50, and the size of the through hole 512 is adapted to the connecting portion 32, so that the connecting portion 32 can penetrate and extend out for a certain distance. The peripheral edge 52 is provided on the side of the base 51 facing away from the mounting direction, surrounding the protruding connecting portion end 321, and is shaped to fit with an external connector. The base body 51, the peripheral edge 52 and the connecting portion 32 constitute a male terminal which can be connected to an external connector, particularly a RAST connector. In the process of matching and connecting the male terminal and the RAST connector, the tail end 321 of the connecting part is contacted with the contact piece of the RAST connector, the thickness of the connecting part 32 is increased due to the fact that the tail end 321 of the connecting part is bent and overlapped, the contact area of the connecting part 32 and the contact piece of the RAST connector is enlarged, the strength of the connecting part 32 is improved, and the connection reliability of the male terminal and the RAST connector is enhanced.

As shown in fig. 5 and 6, the sleeve 53 is cylindrical and is molded around the base 51 and the peripheral edge 52, wherein an opening 533 at one end of the sleeve 53 in the mounting direction is used for the snap-fit connection between the socket 50 and the plastic part 40. The housing 53 is provided with a buckle body 531 and a guide portion 532, the buckle body 531 is a hook-like structure protruding from the inner side of the edge of the opening 533, the buckle body 531 is chamfered so that one side in the mounting direction is an inclined surface 5311, and an angle b between the inclined surface 5311 and the plane of the mounting direction is preferably 45 °. In the process of connecting the socket part 50 and the plastic package part 40, the buckle body 531 and the boss 41 are in interference fit, the buckle body inclined plane 5311 and the boss inclined plane 411 are in contact and move oppositely, and finally the boss 41 is buckled on the buckle body 531, so that the socket part 50 and the plastic package part 40 are connected in a clamping manner. To facilitate the engagement between the protrusion 41 and the buckle 531, the angle a between the protrusion slope 411 and the radial plane should be smaller than the angle b between the buckle slope 5311 and the installation direction plane.

As shown in fig. 5, 6 and 7, the guiding portion 532 is a wall structure that is provided in the opening 533, faces the buckle body 531, and is parallel to the mounting direction, and in the process of connecting the socket portion 50 and the plastic package portion 40, the guiding portion 532 moves along the guiding surface 42 while keeping contact with the guiding surface 42, and ensures that the buckle body 531 and the boss 41 are engaged with each other in an interference state, so that the sleeve 53 is tightly mounted on the plastic package portion 40.

As shown in fig. 8, the water pump of embodiment 2 includes the coil block 100 of embodiment 1, a stator core 200, and a pump body 300. The connection and matching among the coil assembly 100, the stator core 200 and the pump body 300 are common technical means in the prior art, and are not described in detail in this specification.

The coil assembly 100 of the present invention is not limited to the application of the water pump, and can be applied to all electrical appliances that may contain the coil assembly 100, such as electromagnetic valves, transformers, etc.

Claims

1. The utility model provides a take coil pack of terminal sheath, includes coil former (10), enameled wire (20) of coiling on coil former (10), cartridge on coil former (10), with enameled wire (20) electric connection's binding post (30), through injection plastic molding, wraps up plastic envelope portion (40) of coil former (10) and enameled wire (20), its characterized in that, still include with socket (50) that plastic envelope portion (40) and/or binding post (30) detachably connect, binding post (30) pass socket (50) and external connector electricity is connected.

2. The terminal-sheathed coil assembly according to claim 1, wherein the terminal (30) is provided with a connecting portion (32), the socket portion (50) comprises a base body (51), the base body (51) is provided with a through hole (512) adapted to the shape of the connecting portion (32), and the connecting portion (32) passes through the through hole (512) to electrically connect the terminal (30) with an external connector.

3. The terminal-sheathed coil assembly according to claim 2, wherein the connecting portion (32) is overlapped by bending through a portion of the through-hole (512).

4. The terminal sheathed coil assembly according to claim 2, wherein the socket portion (50) comprises a peripheral edge (52) provided on one side of the base body (51) and shaped to conform to the external connector, the peripheral edge (52) surrounding and shielding the through hole (512).

5. The terminal sheathed coil assembly according to claim 2, wherein the terminal block (30) is provided with a positioning portion (31), the base body (51) is provided with a blind hole (511) adapted to the shape of the positioning portion (31), and the positioning portion (31) is inserted into the blind hole (511) to detachably connect the terminal block (30) and the socket portion (50).

6. The terminal-sheathed coil assembly according to claim 4, wherein the socket portion (50) comprises a housing (53) surrounding the base body (51) and the peripheral edge (52), and an opening (533) of the housing (53) is in snap-fit connection with the plastic package portion (40) to detachably connect the socket portion (50) with the plastic package portion (40).

7. The coil assembly with the terminal sheath as claimed in claim 6, wherein the plastic package portion (40) is provided with a boss (41), the opening (533) of the housing (53) is provided with a buckle body (531) correspondingly matched with the boss (41), and the buckle body (531) is buckled with the boss (41) to realize the clamping connection of the housing (53) and the plastic package portion (40).

8. The terminal sheathed coil assembly according to claim 7, wherein the boss (41) and the button body (531) are each provided with a chamfer, and the boss (41) and the button body (531) are in contact connection through a slope formed by the two chamfers to guide the snap-fitting.

9. The terminal-sheathed coil assembly according to claim 7, wherein the opening (533) of the housing (53) is provided with a guide portion (532) opposite to the button body (531) in close contact with the plastic molded portion (40).

10. A water pump, characterized in that it comprises the coil assembly (100) according to any one of claims 1 to 9.