CN210403606U

CN210403606U - Sealing structure of sealed high-voltage direct-current relay

Info

Publication number: CN210403606U
Application number: CN201921704909.XU
Authority: CN
Inventors: 董彬; 董小涵
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-04-24
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a sealing structure of a sealed high-voltage direct-current relay, which belongs to the field of sealed direct-current relays, and comprises a lower shell and an upper shell, wherein the upper end of the lower shell is provided with an annular step, the upper shell is positioned at the inner side of the annular step, the inner bottom surface of the annular step is fixedly connected with an annular spoiler, the lower end of the upper shell is provided with an inner groove, the annular spoiler is matched with the inner groove, the upper periphery of the upper shell is provided with a notch groove, the side end of the upper shell is provided with a pair of glue gathering grooves, the notch groove is positioned at the upper side of the glue gathering groove, the side wall of the annular step is provided with a plurality of overflow holes which are uniformly distributed, the overflow holes are positioned at the lower side of the glue gathering groove and also comprise a sealing sleeve which is sleeved at the outer sides of the lower shell and the upper shell, the sealing structure can realize more, meanwhile, the condition that the adhesive is lost into the lower shell can be reduced to the maximum extent.

Description

Sealing structure of sealed high-voltage direct-current relay

Technical Field

The utility model relates to a sealed direct current relay field, more specifically say, relate to a sealed high voltage direct current relay's seal structure.

Background

A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The direct current relay is one of the relays, and most of the existing direct current relays adopt a scheme of a movable reed direct-acting type (also called a solenoid direct-acting type), a contact part of the direct current relay comprises two fixed contacts and a movable component, the movable component comprises a movable reed part and a push rod component, the movable reed part comprises a movable reed and movable contacts arranged at two ends of the movable reed, and the movable reed is usually a straight-piece type.

In order to have excellent long-term severe environment tolerance performance, good electric contact stability and prevent pollution of dust, moisture, harmful gas and the like in the air, a sealing structure is generally adopted, in order to realize sealing, the method in the prior art is to realize sealing of an upper shell and a lower shell in a glue dispensing and plastic packaging mode, a step is generally made on the inner side of the upper end of the lower shell for a product of the glue dispensing and plastic packaging of the upper shell and the lower shell, the upper shell covers the lower shell by taking the step surface as a stop surface, the bottom surface of the edge of the upper shell is a plane, the plane is overlapped on the step surface of the upper end of the lower shell, a notch is arranged on the edge of the upper shell, a glue dispensing groove is formed by the notch and the side wall on the step of the lower shell in a surrounding mode, and plastic packaging fixation is realized by glue dispensing on.

As is known, chinese patent discloses a utility model patent entitled "a sealing structure of a sealed high-voltage direct-current relay", the application number of which is cn201920192497.x, and the sealing structure of the sealed high-voltage direct-current relay comprises an upper housing and a lower housing, wherein the upper housing comprises a plate-shaped main plate body, and the lower housing is a shell-shaped body with an upward opening; the inner side of the upper end of the lower shell is provided with an annular step, and the periphery of the main plate body of the upper shell is matched with the annular step of the lower shell; an annular gap is arranged on the periphery of the main plate body of the upper shell, a glue dispensing groove is formed by the annular gap and the side wall of the annular step of the lower shell in a surrounding mode, and plastic package fixation of the relay is achieved through glue dispensing on the glue dispensing groove; the bottom surface of the peripherad of the mainboard body at last shell still is equipped with annular boss downwards, and this patent compares with prior art, and the beneficial effect is: the utility model can not only improve the connection strength between the upper shell and the lower shell, but also improve the strength of the upper shell and reduce the deformation; meanwhile, the loss of glue can be avoided.

The sealing structure of the sealed high-voltage direct-current relay disclosed in the application number of CN201920192497.X can not judge whether the adhesive is fully dispensed into the adhesive dispensing groove when the adhesive is dispensed and the plastic package is performed, so that the adhesive is easily dispensed from the local position in the adhesive dispensing groove, the sealing effect is affected, and the inside of the relay, which is caused by the loss of the adhesive, can not be avoided only through the annular boss, is required to be dispensed more uniformly and sufficiently, the sealing performance is better, and the loss of the adhesive is smaller.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, the utility model aims to provide a sealed high-voltage direct current relay's seal structure, it can realize that the point is glued more evenly fully, improves sealed effect, can reduce the inside condition of shell under the adhesive loss to the at utmost simultaneously.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a sealed high-voltage direct-current relay's seal structure, includes lower shell and last shell, the upper end of shell is provided with annular step down, it is located annular step's inboard to go up the shell, annular step's interior bottom surface fixedly connected with annular spoiler, the lower extreme of going up the shell is excavated there is the inside groove, annular spoiler and inside groove phase-match, it has the breach groove to go up the upper end week of shell along the department of digging, the side of going up the shell is excavated there is a pair of glue groove, the breach groove is located the upside in glue groove, it has a plurality of evenly distributed's overflow hole to dig on annular step's the lateral wall, the overflow hole is located the downside in glue groove, the utility model discloses can realize the point and glue more evenly abundant, improve sealed effect, can reduce the inside condition of shell under the adhesive loss to the at utmost simultaneously.

Further, still include the seal cover, the seal cover overlaps in the outside of lower shell and last shell, and the seal cover can further be spacing down shell and last shell, reduces the lower shell that causes because of the increase of internal pressure and goes up the condition that the displacement of shell emergence vertical side upwards, can protect the point glue groove that annular step and breach groove are constituteed simultaneously through the seal cover, reduces the pollution of external dust impurity to it.

Furthermore, the seal cover includes a pair of arc frames of rotating the connection, one of them the tip fixedly connected with fixture block of arc frame, another the tip of arc frame is dug there is the draw-in groove, fixture block and draw-in groove joint, the seal cover can conveniently be installed and dismantle.

Furthermore, the upper inner wall and the lower inner wall of the arc-shaped frame are fixedly connected with waterproof sealing rubber pads, the clamping groove can be the outer end of the lower shell and the outer end of the upper shell which are stably sleeved by a sealing sleeve, and meanwhile, external moisture can not easily enter the sealing position of the lower shell and the upper shell.

Furthermore, the upper surface of the upper shell and the upper surface of the lower shell are located on the same horizontal plane, so that the notch groove and the annular step form a glue dispensing groove conveniently.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme can realize that the point is glued more evenly abundant, improves sealed effect, can reduce the inside condition of shell under the adhesive loss to the at utmost simultaneously.

(2) Still include the seal cover, the seal cover overlaps in the outside of lower shell and last shell, and the seal cover can further be spacing down shell and last shell, reduces the condition of taking place the ascending displacement of vertical side down shell and last shell that causes because of the increase of internal pressure, can protect the point glue groove of annular step and breach groove constitution simultaneously through the seal cover, reduces the pollution of external dust impurity to it.

(3) The seal cover includes a pair of arc frame of rotating the connection, and the tip fixedly connected with fixture block of one of them arc frame, and the tip of another arc frame is excavated there is the draw-in groove, fixture block and draw-in groove joint, and the seal cover can conveniently be installed and dismantle.

(4) The upper inner wall and the lower inner wall of the arc-shaped frame are fixedly connected with waterproof sealing rubber pads, the clamping groove can be the outer end of the lower shell and the outer end of the upper shell which are stably sleeved with a sealing sleeve, and meanwhile, external moisture can not easily enter the sealing position of the lower shell and the upper shell.

(5) The upper surface of going up the shell and the upper surface of lower shell are located same horizontal plane, make things convenient for breach groove and annular step to constitute the point to glue the groove.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a perspective view of the utility model when the sealing sleeve is not installed;

fig. 3 is a schematic front structural view of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

fig. 5 is a perspective view of the sealing sleeve of the present invention;

fig. 6 is a schematic front structural view before installation of the present invention.

The reference numbers in the figures illustrate:

the sealing device comprises a lower shell 1, an annular step 101, an overflow hole 102, an upper shell 2, a gap groove 201, an inner groove 202, a glue gathering groove 203, an annular spoiler 3, a sealing sleeve 4, an arc-shaped frame 401, a clamping block 402, a clamping groove 403 and a waterproof sealing rubber pad 404.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 2, a sealing structure of a sealed high-voltage direct-current relay includes a lower housing 1 and an upper housing 2, an upper surface of the upper housing 2 and an upper surface of the lower housing 1 are located at the same horizontal plane, referring to fig. 3 (only half of a sealing sleeve 4 is shown in the figure) and fig. 4, an annular step 101 is disposed at an upper end of the lower housing 1, the upper housing 2 is located at an inner side of the annular step 101, an annular spoiler 3 is fixedly connected to an inner bottom surface of the annular step 101, an inner groove 202 is cut at a lower end of the upper housing 2, the annular spoiler 3 is matched with the inner groove 202, so that an adhesive is not liable to flow into the lower housing 1, a notch groove 201 is cut at an upper end circumference of the upper housing 2, a point adhesive groove is formed by a side wall of the annular step 101 and the notch groove 201, a pair of adhesive collecting grooves 203 is cut at a side end of the upper housing 2, the notch groove 201 is located at an upper side of the adhesive collecting groove 203, the overflow hole 102 is located at the lower side of the glue groove 203.

Please refer to fig. 1, the utility model discloses still include seal cover 4, seal cover 4 overlaps in the outside of shell 1 and last shell 2 down, please refer to fig. 5, seal cover 4 includes a pair of arc frame 401 of rotating the connection, the tip fixedly connected with fixture block 402 of one of them arc frame 401, the tip of another arc frame 401 is opened and is dug there is draw-in groove 403, fixture block 402 and draw-in groove 403 joint, can further spacing down shell 1 and last shell 2 through seal cover 4, the condition of the ascending displacement of lower shell 1 that reduces to cause because of the increase of internal pressure and last shell 2 emergence vertical side, can protect the point glue groove of annular step 101 and breach groove 201 constitution through seal cover 4 simultaneously, reduce the pollution of external dust impurity to it, and can conveniently install and dismantle.

Referring to fig. 5, waterproof sealing rubber pads 404 are fixedly connected to upper and lower inner walls of the arc frame 401, and the clamping groove 403 can be stably sleeved on outer ends of the lower housing 1 and the upper housing 2 by the sealing sleeve 4, so that external moisture is not easy to enter into a sealing position between the lower housing 1 and the upper housing 2.

During dispensing and plastic packaging, please refer to fig. 3 and 4, the upper housing 2 is aligned with the lower housing 1 and placed in the annular step 101, and then dispensing is performed in a dispensing slot formed by the annular step 101 and the notch slot 201, a part of the adhesive flows in along the gap between the annular step 101 and the upper housing 2 and gradually gathers in the adhesive gathering slot 203, so that not only the connection strength between the lower housing 1 and the upper housing 2 can be increased, but also the adhesive can be fully contacted with the lower housing 1 and the upper housing 2, and the situation of partial adhesive shortage between the lower housing 1 and the upper housing 2 can be reduced, when the adhesive flows to the inner bottom surface of the annular step 101, a part of the adhesive flows towards the annular flow baffle 3, and a part of the adhesive flows out from the overflow hole 102, the annular flow baffle 3 can make the adhesive not easily flow into the lower housing 1, the flow rate of the adhesive toward the inner portion of the lower housing 1 can be slowed down through the overflow hole 102, and whether the adhesive flows out from the overflow hole 102 can be observed to judge The glue is separated, and when the adhesive flows out from the overflow hole 102, the glue dispensing can be stopped.

The utility model discloses can realize that the point is glued more evenly fully, improve sealed effect, can reduce the adhesive simultaneously and run off the inside condition of shell 1 down by the at utmost, can also learn the adhesive condition of flowing, carry out the right amount point and glue, make the point glue plastic envelope effect reach the best.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a sealed high voltage direct current relay's seal structure, includes lower shell (1) and upper housing (2), its characterized in that: the upper end of lower shell (1) is provided with annular step (101), it is located the inboard of annular step (101) to go up shell (2), the interior bottom surface fixedly connected with annular spoiler (3) of annular step (101), the lower extreme of going up shell (2) is opened and is dug there is interior groove (202), annular spoiler (3) and interior groove (202) phase-match, it has breach groove (201) to go up the upper end week of shell (2) along the department of digging, the side of going up shell (2) is opened and is dug there is a pair of gluey groove (203), breach groove (201) are located the upside of gathering gluey groove (203), it has a plurality of evenly distributed's overflow hole (102) to dig on the lateral wall of annular step (101), overflow hole (102) are located the downside of gathering gluey groove (203).

2. A sealing structure of a sealed hvdc relay according to claim 1, characterized in that: the sealing device is characterized by further comprising a sealing sleeve (4), wherein the sealing sleeve (4) is sleeved on the outer sides of the lower shell (1) and the upper shell (2).

3. A sealing structure of a sealed hvdc relay according to claim 2, characterized in that: the sealing sleeve (4) comprises a pair of arc-shaped frames (401) which are rotatably connected, a clamping block (402) is fixedly connected to the end portion of one of the arc-shaped frames (401), a clamping groove (403) is formed in the end portion of the other arc-shaped frame (401), and the clamping block (402) is clamped with the clamping groove (403).

4. A sealing structure of a sealed hvdc relay according to claim 3, characterized in that: the upper inner wall and the lower inner wall of the arc-shaped frame (401) are fixedly connected with waterproof sealing rubber pads (404).

5. A sealing structure of a sealed hvdc relay according to claim 1, characterized in that: the upper surface of the upper shell (2) and the upper surface of the lower shell (1) are positioned on the same horizontal plane.