CN216487657U - Coil and electronic expansion valve with same - Google Patents

Abstract

The utility model provides a coil and have its electronic expansion valve, it includes: a body; the connecting seat is arranged on the side face of the body and provided with an accommodating cavity and an installing surface, the installing surface is positioned in the accommodating cavity, the installing surface is provided with a contact pin, and one end of the contact pin is electrically connected with the body; the blocking structure is arranged on the mounting surface and is positioned on the periphery of the contact pin; and the filling part is arranged in the accommodating cavity and covers the contact pin and the blocking structure. Through the technical scheme that this application provided, can solve the poor problem of the sealing insulating nature of the coil among the prior art.

Description

Coil and electronic expansion valve with same

Technical Field

The utility model relates to the technical field of valves, particularly, relate to a coil and have its electronic expansion valve.

Background

The electronic expansion valve comprises a valve body and a coil arranged on the valve body. Wherein, the coil includes body and pedestal, is provided with the contact pin on the pedestal, and the contact pin on the pedestal is used for cooperating with external circuit board, specifically, has the jack on the circuit board. When the contact pin is connected with the circuit board, the contact pin is inserted into the jack on the circuit board, a certain gap is formed between the base body and the circuit board, then the contact pin is welded with the conducting circuit of the circuit board, and finally, potting material is filled in the gap between the base body and the circuit board, so that sealing insulation with the outside is realized. However, the coil has poor sealing insulation, and when the coil is immersed in a liquid for a long time, the liquid outside easily penetrates into the vicinity of the pin, which affects the performance of the circuit board and further the performance of the coil.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coil and have its electronic expansion valve to solve the poor problem of the sealing insulating nature of the coil among the prior art.

According to an aspect of the present invention, there is provided a coil, including: a body; the connecting seat is arranged on the side face of the body and provided with an accommodating cavity and an installing surface, the installing surface is positioned in the accommodating cavity and provided with a contact pin, and one end of the contact pin is electrically connected with the body; the blocking structure is arranged on the mounting surface and is positioned on the periphery of the contact pin; the filling part is arranged in the accommodating cavity and covers the contact pin and the blocking structure.

Use the technical scheme of the utility model, be provided with on the installation face and separate the fender structure, separate the periphery that the fender structure set up at the contact pin, then utilize the filling portion to cover at the contact pin with separate on the fender structure. Through filling portion with separate the cooperation of keeping off the structure, can make liquid be kept off in the contact pin outside by separating, avoid or reduce the possibility of liquid and contact pin contact, separate simultaneously and keep off the structure and increased the combining area of filling portion and connecting seat, increase combination power, prolonged liquid infiltration's route, and then can improve sealed insulating effect, guarantee the normal work of coil.

Further, keep off the structure and include that a plurality of first keep off the unit and a plurality of second keep off the unit that separates, a plurality of first keep off the unit and a plurality of second keep off the unit and enclose and establish in the periphery of contact pin, the first extending direction that keeps off the unit that separates has the contained angle with the second extending direction that separates the unit. Above-mentioned setting can carry out diversified fender that separates to liquid, and then can further promote the fender liquid effect that separates of keeping off the structure.

Further, the first barrier unit extends in the liquid horizontal direction, and the second barrier unit extends in the vertical direction. So set up for first keep off the unit and the second separates that keep off the unit and distribute rationally, can promote the utilization ratio to the installation face, and can conveniently separate the machine-shaping that keeps off the unit to first fender unit and second.

Further, the blocking structure comprises a first blocking unit or a second blocking unit.

Further, the blocking structure is at least one of a blocking groove or a blocking rib. The baffle groove and the baffle rib are arranged, so that the structure is simple, and the forming is convenient.

Further, the cross section of the baffle structure is polygonal. So set up, can guarantee to separate the cohesion between fender muscle and the filling portion, perhaps can guarantee to separate the cohesion between groove and the filling portion.

Further, keep off the structure and include keeping off the groove, keep off the both sides that the groove runs through the installation face and set up. So set up, can promote the fender effect that separates to liquid, can promote the fastness of being connected between filling portion and the connecting seat simultaneously.

Further, keep off the structure including keeping off the muscle, keep off the muscle and have link and the free end of relative setting, the cross sectional dimension of free end reduces along the direction of link to free end gradually. Above-mentioned setting can be convenient to the machine-shaping that separates the fender muscle.

Further, the connection seat includes: the seat body is arranged on the side surface of the body and is provided with an installation surface; the outer shell covers the periphery of the seat body, an interval is formed between the inner wall of the outer shell and the installation surface along the radial direction of the body, and an accommodating cavity is formed between the seat body and the outer shell.

Further, the connecting seat still has the opening, the opening with hold the chamber intercommunication, and the opening is located the bottom of connecting seat, the coil still includes circuit board and connecting wire, the circuit board has the jack, the jack corresponds the setting with the contact pin, the circuit board setting is in the one side of keeping away from the body of pedestal, the one end of connecting wire is worn to establish in the opening and is connected with the circuit board electricity. The open-ended setting can dodge the connecting wire, avoids the connecting wire to take place to buckle, prolongs the life-span of connecting wire.

Further, the coil further includes: two spacing portions are arranged on two sides of the mounting surface, and the spacing portions protrude out of the mounting surface. The setting of spacing portion can guarantee the uniformity of the interval between circuit board and the pedestal, and then can guarantee the cooperation precision of contact pin and circuit board.

According to another aspect of the present invention, there is provided an electronic expansion valve including the coil as described above.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a cross-sectional view of a coil according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connection seat according to an embodiment of the present invention;

fig. 3 is a front view of a connection seat according to an embodiment of the present invention;

fig. 4 is a side view of a connection seat according to an embodiment of the present invention;

fig. 5 is a top view of a connection seat according to an embodiment of the present invention;

fig. 6 shows a cross-sectional view of a coil provided in the second embodiment of the present invention;

fig. 7 shows a schematic structural diagram of a connection seat according to a second embodiment of the present invention;

fig. 8 shows a front view of a connection seat provided in the second embodiment of the present invention;

fig. 9 is a side view of a connection seat according to a second embodiment of the present invention;

fig. 10 shows a top view of the connection seat according to the second embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a body;

20. a connecting seat; 201. inserting a pin; 21. a base body; 22. a housing;

30. a filling section;

41. a barrier groove; 42. a blocking rib;

50. a limiting part;

61. a circuit board; 62. and connecting the wires.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 5, an embodiment of the present invention provides a coil, which includes a body 10, a connecting seat 20, a blocking structure, and a filling portion 30. Wherein connecting seat 20 sets up the side at body 10, and connecting seat 20 has and holds the chamber and installation face, and the installation face is located and holds the intracavity, and the installation face has contact pin 201, and the one end and the body 10 electricity of contact pin 201 are connected. The blocking structure is arranged on the installation surface and is positioned on the periphery of the contact pin 201. The filling part 30 is disposed in the accommodating cavity, and the filling part 30 covers the pin 201 and the blocking structure.

Use the technical scheme of the utility model, be provided with on the installation face and separate the fender structure, separate the periphery that the fender structure set up at contact pin 201, then utilize filling portion 30 to cover at contact pin 201 and separate the fender structurally. Through filling portion 30 with separate the cooperation of keeping off the structure, can make liquid be kept off in the outside of contact pin 201 by separating, avoid or reduce the possibility of liquid and contact pin 201 contact, and then can improve sealed insulating effect, guarantee the normal work of coil.

In this scheme, filling portion 30 has certain flexible performance, therefore after filling portion 30 covers on separating the fender structure, filling portion 30 with separate and can produce certain clearance between the fender structure, soak the back in liquid when the coil for a long time, liquid can permeate filling portion 30 and separate in the clearance that forms between the fender structure. Because in this scheme, separate the retaining structure and be located the periphery of contact pin 201, consequently after the coil soaks in liquid for a long time, liquid can flow into and separate in the clearance between retaining structure and the filling portion 30 to be located the periphery of contact pin 201. With the arrangement, the possibility that liquid flows into the vicinity of the insertion pin 201 can be reduced, and the working performance of the coil is ensured. Meanwhile, the blocking structure increases the bonding force between the filling part 30 and the connecting seat 20, increases the bonding area, and prolongs the path of liquid permeation. In addition, filling portion 30 covers on the fender structure for filling portion 30 links together with the fender structure, so set up, can promote the fastness that filling portion 30 and connecting seat 20 are connected. Moreover, in the scheme, the blocking structure is arranged on the installation surface, so that the blocking structure is positioned in the accommodating cavity, and the compactness of the overall structure of the coil is ensured.

The blocking structure can block a partial region of the periphery of the pin 201, and can also surround the periphery of the pin 201. The baffle structure can comprise a first baffle unit or a second baffle unit. In this scheme, separate the fender structure and include that a plurality of first keep off the unit and a plurality of second separate the fender unit, a plurality of first keep off the unit and a plurality of second separate the fender unit and enclose the periphery of establishing at contact pin 201, and the first extending direction that separates the unit and the extending direction that the second separated the fender unit have the contained angle. A plurality of first keep off the unit and a plurality of second keep off the unit and enclose the periphery of establishing at contact pin 201 that separates, can be diversified separate the fender to liquid, promote the effect that separates the fender to liquid. And first keep off the unit and the second keeps off the unit all is provided with a plurality ofly, can further increase and keep off the quantity in the clearance between structure and the filling portion 30, promotes the holding capacity to liquid, further promotes the fender effect that keeps off to liquid.

Specifically, the pins 201 are provided in plural, and the plural pins 201 are distributed at intervals along the extending direction of the mounting surface. And the first blocking unit extends along the liquid horizontal direction, and the second blocking unit extends along the vertical direction. The first blocking units are arranged on two sides of the contact pin 201 at intervals along the width direction of the mounting surface, and the second blocking units are arranged on two sides of the contact pin 201 at intervals along the length direction of the mounting surface. So set up, can make first keep off the unit and the second keeps off the unit and separates the even distribution on the installation face as far as possible, when guaranteeing sealed effect, can promote the utilization ratio to the installation face, realize the diversified sealed near regional of contact pin 201. And above-mentioned setting, the machine-shaping to separating the fender structure is convenient.

The blocking structure may include a blocking groove 41 and a blocking rib 42, or may include only one of the blocking groove 41 and the blocking rib 42.

In this embodiment, the blocking structure includes a blocking groove 41, and the blocking groove 41 penetrates through two sides of the mounting surface. And, the cross section of the blocking groove 41 is polygonal, specifically, the cross section of the blocking groove 41 may be triangular, quadrangular, pentagonal, wherein the cross section means a section perpendicular to the length direction of the blocking groove 41. In the present embodiment, the cross section of the baffle groove 41 is a quadrangle. So set up, can make things convenient for the machine-shaping of keeping off groove 41, and can guarantee to keep off the area of contact between groove 41 and the filling portion 30, promote the cohesion between filling portion 30 and the connecting seat 20. And the first barrier unit comprises three barrier grooves 41 extending in the liquid horizontal direction, and the second barrier unit comprises two barrier grooves 41 extending in the vertical direction. Of the three barrier grooves 41 of the first barrier unit, two barrier grooves 41 are located above the pin 201, and one barrier groove 41 is located below the pin 201; the two blocking grooves 41 of the second blocking unit are respectively arranged at two sides of the plurality of pins 201, and the blocking grooves 41 of the second blocking unit are communicated with the two blocking grooves 41 of the first blocking unit close to the pins 201. Filling portion 30 is filled and the sclerosis is formed by the potting material, and the potting material is before the sclerosis, and its inside has the bubble, and above-mentioned setting can make things convenient for the bubble in filling portion 30 in time to discharge, guarantees filling portion 30's filling effect and structural strength.

Specifically, the connection socket 20 includes a socket body 21 and a housing 22. Wherein, the seat body 21 is arranged on the side surface of the body 10, and the seat body 21 is provided with an installation surface. The housing 22 covers the periphery of the seat body 21, an inner wall of the housing 22 and the mounting surface have a space in the radial direction of the body 10, and a receiving cavity is formed between the seat body 21 and the housing 22. The connecting seat 20 further has an opening, the opening communicates with the accommodating cavity, and the opening is located at the bottom of the connecting seat 20, the coil further includes a circuit board 61 and a connecting wire 62, the circuit board 61 has a jack, the jack corresponds to the pin 201, the circuit board 61 is disposed on one side of the seat body 21 away from the body 10, and one end of the connecting wire 62 is penetrated through the opening and is electrically connected with the circuit board 61. The above arrangement enables the circuit board 61, the base body 21 and the housing 22 to be fixedly connected by the filling part 30, and the filling part 30 can achieve the effect of sealing and insulating the circuit board 61. Open-ended sets up, can play the effect of dodging to connecting wire 62, reduces connecting wire 62 and takes place the condition of buckling, prolongs connecting wire 62's life.

Further, the coil further includes two position-limiting portions 50, wherein the position-limiting portions 50 may be disposed on the mounting surface or on a side of the circuit board 61 facing the seat 21. And the position limiting portion 50 may be provided separately from the housing 21 or the circuit board 61. In this embodiment, the limiting portion 50 and the seat body 21 are integrally formed, the two limiting portions 50 are respectively disposed on two sides of the mounting surface, the limiting portion 50 protrudes out of the mounting surface, and the extending direction of the limiting portion 50 is the same as the axial direction of the body 10. When being connected circuit board 61 and pedestal 21 specifically, behind contact pin 201 inserted the jack, spacing portion 50 and circuit board 61 butt, later again to holding the intracavity filling potting material. Spacing portion 50's setting, can support circuit board 61, and make certain clearance have between circuit board 61 and the pedestal 21, be convenient for filling portion 30 fills in the clearance between circuit board 61 and pedestal 21, the back of circuit board 61 is permeated to the solder when being convenient for simultaneously contact pin 201 and circuit board 61 weld, guarantee the welding effect, and, two spacing portions 50 set up the both sides at the installation face respectively, can guarantee the uniformity of interval between circuit board 61 and the pedestal 21, and then can guarantee contact pin 201 and circuit board 61's cooperation precision, guarantee electrically conductive effect.

As shown in fig. 6 to 10, the second embodiment of the present invention provides a coil, which is different from the first embodiment in that the blocking structure includes a blocking rib 42, the blocking rib 42 has a connecting end and a free end which are oppositely disposed, the cross-sectional dimension of the free end is gradually reduced along the direction from the connecting end to the free end, and specifically, the cross-section of the blocking rib 42 is triangular. The blocking rib 42 and the seat body 21 are integrally formed, and thus the seat body 21 and the blocking rib 42 can be conveniently machined and formed. In this embodiment, the number of the blocking ribs 42 is three, wherein two of the blocking ribs 42 are arranged above the contact pin 201 in parallel, the other blocking rib 42 is arranged below the contact pin 201, the three blocking ribs 42 play a role in horizontal blocking, the two limiting portions 50 play a role in vertical blocking, the blocking ribs 42 and the limiting portions 50 are matched, and the periphery of the contact pin 201 is surrounded to realize multi-directional sealing of the contact pin 201.

An embodiment of the present invention provides an electronic expansion valve, which includes a coil in the first embodiment.

The embodiment of the utility model provides a fourth provides an electronic expansion valve, it includes the coil in embodiment two.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. A coil, characterized in that the coil comprises:

a body (10);

the connecting seat (20) is arranged on the side face of the body (10), the connecting seat (20) is provided with an accommodating cavity and a mounting face, the mounting face is located in the accommodating cavity, the mounting face is provided with a contact pin (201), and one end of the contact pin (201) is electrically connected with the body (10);

the blocking structure is arranged on the mounting surface and is positioned on the periphery of the contact pin (201);

and the filling part (30) is arranged in the accommodating cavity, and the filling part (30) covers the inserting pin (201) and the blocking structure.

2. The coil as claimed in claim 1, wherein the blocking structure comprises a plurality of first blocking units and a plurality of second blocking units, the plurality of first blocking units and the plurality of second blocking units are arranged around the outer circumference of the contact pin (201), and the extending direction of the first blocking units and the extending direction of the second blocking units form an included angle.

3. The coil of claim 2, wherein the first baffle unit extends in a liquid-horizontal direction and the second baffle unit extends in a vertical direction.

4. The coil of claim 1, wherein the baffle structure comprises a first baffle unit or a second baffle unit.

5. The coil according to claim 1, wherein the barrier structure is at least one of a barrier groove (41) or a barrier rib (42).

6. A coil according to claim 5, wherein the cross-section of the baffle structure is polygonal.

7. Coil according to claim 1, wherein the baffle structure comprises baffle slots (41), the baffle slots (41) being arranged through both sides of the mounting surface.

8. A coil according to claim 1, wherein the barrier structure comprises a barrier rib (42), the barrier rib (42) having a connecting end and a free end which are oppositely arranged, and the cross-sectional dimension of the free end is gradually reduced along the direction from the connecting end to the free end.

9. Coil according to claim 1, characterized in that said connection seat (20) comprises:

the seat body (21) is arranged on the side surface of the body (10), and the seat body (21) is provided with the mounting surface;

the outer shell (22) covers the periphery of the seat body (21), the inner wall of the outer shell (22) has an interval along the radial direction of the body (10) on the mounting surface, and the accommodating cavity is formed between the seat body (21) and the outer shell (22).

10. The coil of claim 9, wherein the connecting base (20) further has an opening, the opening is communicated with the accommodating cavity and is located at the bottom of the connecting base (20), the coil further comprises a circuit board (61) and a connecting wire (62), the circuit board (61) has a jack, the jack is arranged corresponding to the pin (201), the circuit board (61) is arranged at one side of the base body (21) far away from the body (10), and one end of the connecting wire (62) penetrates through the opening and is electrically connected with the circuit board (61).

11. The coil of claim 1, further comprising:

the two limiting parts (50) are arranged on two sides of the mounting surface, and the limiting parts (50) protrude out of the mounting surface.

12. An electronic expansion valve, characterized in that it comprises a coil according to any of claims 1-11.

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