CN218101847U

CN218101847U - End cover assembly of power converter

Info

Publication number: CN218101847U
Application number: CN202222596302.2U
Authority: CN
Inventors: 黄伟; 潘成前; 陈斌
Original assignee: Changzhou Jutai Electronic Co Ltd
Current assignee: Changzhou Jutai Electronic Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-20
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a power converter's end cover subassembly, including the conduction element, the closing cap, the one end setting of closing cap has the socket of slotted hole, the slotted hole cooperation on the one end of conduction element and the socket, be equipped with at the other end of closing cap and enclose the fender, form sealed area between enclosing fender and closing cap, the other end that will conduct the element at least sets up to solid construction, and the other end that conducts the element enters sealed area after passing the slotted hole on the socket, pours into sealed glue in clearance between conduction element and the slotted hole into in sealed area. The utility model discloses can promote sealing performance.

Description

End cover assembly of power converter

Technical Field

The utility model relates to a power converter technical field, concretely relates to power converter's end cover subassembly.

Background

As shown in fig. 1, CN204045831U discloses an improved waterproof structure of a transforming plug, which is a plug body 20 is provided with a receiving portion 201 having an opening 202 therein for assembling a power conversion unit 21, the positive and negative contacts of the input end of the power conversion unit 21 are electrically connected to two power conducting strips 22 extending out of the plug body for connecting a power source, the positive and negative contacts of the output end are electrically connected to two conducting elements 23 for plugging the wires of an electronic device, so that power can be input through the two power conducting strips 22, the power conversion unit 21 performs alternating current and direct current conversion and transformation, and the power is output by the two conducting elements 23; a cover 24 correspondingly covers the opening 202 of the plug body 20, wherein the peripheral edge of the opening 202 of the plug body 20 is annularly provided with a sleeve portion 203 which can be an annular groove, the cover 24 is provided with a sleeve portion 241 which can be an annular convex strip corresponding to the sleeve portion 203 of the plug body 20 so as to be mutually sleeved with the sleeve portion 203 of the plug body 20, a concave ring portion 204 is arranged outside the sleeve portion 203 of the plug body 20, the cover 24 is provided with a convex ring portion 242 corresponding to the concave ring portion 204 of the plug body 20 so as to be sleeved with the concave ring portion 204 of the plug body 20, and in addition, in order to enable the cover 24 to cover and fix the opening 202 of the plug body 20, an adhesive 25 which is jointed is coated between the sleeve portion 203 of the plug body 20 and the sleeve portion 241 of the cover 24, and then the cover 24 is welded in an ultrasonic mode, so that the cover 24 can cover and fix the opening 202 of the plug body 20; a fixing structure is used to mount and fix two conducting elements 23 for plugging the wires of the electronic device; the fixing structure is integrally extended from the end surface of the cover 24 to form a socket 243 having two slots, and two conductive elements 23 are respectively mounted and fixed in the two slots of the socket 243 for plugging the wires of the electronic device.

The through element 23 has a hollow structure on the cover 24, and the through element 23 is connected to the power conversion unit 21 through a wire, which has the defect that if the connector is used outdoors, after liquid enters the socket 243, the liquid is likely to flow along the through element 23 and enter the plug body 20, and the liquid can damage the electronic components on the power conversion unit 21.

SUMMERY OF THE UTILITY MODEL

The utility model provides a power converter's that sealing performance is good end cover assembly.

The technical scheme for solving the technical problems is as follows:

the end cover assembly of the power converter comprises a conduction element and a sealing cover, wherein one end of the sealing cover is provided with a socket with a slotted hole, one end of the conduction element is matched with the slotted hole in the socket, the other end of the sealing cover is provided with an enclosure, a sealing area is formed between the enclosure and the sealing cover, at least the other end of the conduction element is arranged to be a solid structure, the other end of the conduction element penetrates through the slotted hole in the socket and then enters the sealing area, and sealant for sealing a gap between the conduction element and the slotted hole is injected into the sealing area.

In this embodiment, the sealant is injected into the formed sealing region, the sealant fills the gap between the conduction element and the slot hole, and at least the other end of the conduction element is set to be a solid structure, so that even if liquid flows along the slot hole, the liquid cannot reach the other end of the cover due to the sealing effect of the sealant. The liquid can not reach the plug body, and the power conversion unit and the electronic components mounted on the power conversion unit are effectively protected.

Drawings

Fig. 1 is a sectional view showing an improved waterproof structure of a transformer plug in the prior art;

FIG. 2 is a schematic view of an end of a first end cap assembly according to the present invention;

FIG. 3 is a schematic view of the other end of the first endcap assembly;

FIG. 4 is a cross-sectional view of a first end cap assembly of the present invention;

FIG. 5 is a perspective view of the press sleeve;

FIG. 6 is a schematic view of one end of a second endcap assembly;

FIG. 7 is a schematic view of the other end of the second endcap assembly;

FIG. 8 is a schematic view of one end of a third endcap assembly;

FIG. 9 is a schematic view of the other end of a third endcap assembly;

FIG. 10 is a schematic view of one end of a fourth endcap assembly;

FIG. 11 is a schematic view of the other end of a fourth endcap assembly;

FIG. 12 is a schematic view of an end of a fifth endcap assembly;

FIG. 13 is a schematic view of the other end of the fifth endcap assembly;

FIG. 14 is a schematic view of one end of a sixth endcap assembly;

FIG. 15 is a schematic view of another end of a sixth endcap assembly;

FIG. 16 is a schematic view of an end of a seventh endcap assembly;

FIG. 17 is a schematic view of the other end of the seventh endcap assembly;

reference numbers in the drawings:

the plug comprises a plug body 20, an accommodating portion 201, an opening 202, a power conversion unit 21, a power guide 22, a conducting element 23, a first connecting portion 23a, a second connecting portion 23b, a slot 23c, a cover 24, a cover body 24a, a weld line 240, a sleeve portion 241, a convex ring portion 242, a socket 243, a sleeve 243a, a plug seat 243b, an adhesive 25, a surrounding barrier 25a, a sealing area 26, a sealant 26a, a reinforcing boss 27, a pressing sleeve 28, a cylindrical component 28a, a first clamping portion 28b and a second clamping portion 28c.

Detailed Description

As shown in fig. 1 to 5, the end cap assembly of the power converter of the present invention includes a conducting element 23, a sealing cover 24, a socket 243 with a slot is disposed at one end of the sealing cover 24, one end of the conducting element 23 is matched with the slot on the socket 243, a surrounding barrier 25a is disposed at the other end of the sealing cover 24, a sealing area 26 is formed between the surrounding barrier 25a and the sealing cover 24, at least, the other end of the conducting element 23 is set to be a solid structure, the other end of the conducting element 23 passes through the slot on the socket 243 and then enters the sealing area 26, and a sealant 26a for sealing a gap between the conducting element 23 and the slot is injected into the sealing area 26.

As shown in fig. 2 to fig. 4, in this embodiment, the conducting element 23 is a flat structure, the conducting element 23 is preferably integrally set to be a solid structure, the socket 243 and the cover 24 are integrally formed by injection molding, the socket 243 is composed of a sleeve 243a and a socket 243b located in the sleeve, an external thread is provided on an outer circumferential surface of the sleeve 243a, the sleeve 243a is used for connecting a load connector, a slot is axially arranged along the socket, the slot is preferably a stepped hole, a circumferential surface of the socket 243b is composed of an arc-shaped surface and a rectangular surface, wherein an arc corresponding to the arc-shaped surface is a major arc.

As shown in fig. 2 to 4, in the present embodiment, the sealant 26a is injected into the formed sealing region 26, the sealant 26a fills the gap between the conductive element 23 and the slot hole, and at least the other end of the conductive element 23 is configured as a solid structure, so that even if liquid flows along the slot hole, the liquid cannot reach the other end of the cap 24 due to the sealing effect of the sealant 26a. The liquid can not reach the plug body 20 shown in fig. 1, and the power conversion unit 21 and the electronic components mounted therein are effectively protected.

As shown in fig. 2 to 4, the slot hole is a stepped hole, the conducting element 23 includes a first connecting portion 23a and a second connecting portion 23b, one end of the first connecting portion 23a is provided with a slot 23c, the slot 23c is used for matching with a conducting portion on a socket component of a load, after the slot 23c is arranged, the first connecting portion 23a is overall U-shaped, the other end of the first connecting portion 23a matches with a stepped surface of the slot hole, and one end of the second connecting portion 23b is fixed with the other end of the first connecting portion 23 a.

As shown in fig. 2 to 4, in the present embodiment, the other end of the second connecting portion 23b is located outside the sealing area 26, and the other end of the second connecting portion 23b is also located outside the entire cover 24, and the other end of the second connecting portion 23b is used for matching with the power conversion unit 21, for example, a plug-in component (not shown in the figure) is welded and fixed on the power conversion unit 21, the plug-in component is electrically connected with the output end of the power conversion unit 21, and when the cover 24 is connected with the plug body 20 shown in fig. 1, the second connecting portion 23b is directly inserted into the plug-in component, so that the second connecting portion 23b is electrically connected with the power conversion unit 21 through the plug-in component.

As shown in fig. 2 to 4, in the present embodiment, the enclosure 25a is an annular component, that is, the enclosure 25a itself is annular, and a sealing area 26 is formed by the annular enclosure 25a and the cover 24. The ring shape of the enclosure 25a may be various shapes, for example, it may be composed of an open rectangle and a circular arc connection, and it may also be circular, oval, etc.

As shown in fig. 2 to 5, the end cap assembly further includes a pressing sleeve 28, a fitting hole is formed in the cover 24, after the pressing sleeve 28 is fitted into the fitting hole of the cover 24, one end of the pressing sleeve 28 is located at one end of the cover 24, the other end of the pressing sleeve 28 is located in the sealing area 26, and the sealant 26a fills a gap between the pressing sleeve 28 and the fitting hole.

As shown in fig. 2 to 5, the pressing sleeve 28 includes a cylindrical member 28a, a first clamping portion 28b and a second clamping portion 28c, the first clamping portion 28b and the second clamping portion 28c are disposed on the circumferential surface of the cylindrical member 28a at intervals, the first clamping portion 28b and the second clamping portion 28c are annular bodies, an inner hole of the pressing sleeve 28 is used for fitting one end of a pressing switch (not shown in the figure), the other end of the pressing switch is welded and fixed with the power supply conversion unit 21, and the pressing sleeve 28 applies pressure to the pressing switch, so that a switching signal for changing an output signal is sent to the power supply conversion unit 21.

As shown in fig. 2 to 5, during installation, the pressing sleeve 28 is inserted through the fitting hole of the cover 24, the first clamping portion 28b and the second clamping portion 28c are respectively located at two ends of the cover 24, the pressing sleeve 28 is pre-positioned on the cover 24 by the cooperation of the first clamping portion 28b and the second clamping portion 28c with the cover 24, and after the sealant 26a is injected into the sealing region 26, the pressing sleeve 28 and the cover 24 are bonded by the sealant 26a, so that the pressing sleeve 28 is fixed.

The utility model discloses an end cover subassembly is not limited to above-mentioned structure, for example:

(a) As shown in fig. 2 to 4, the cap 24 includes a cap body 24a and a sleeve portion 241, the surrounding barrier 25a is located in a region inside the sleeve portion 241 on the cap body 24a, as shown in fig. 13 to 17, the surrounding barrier 25a is a non-closed structure, that is, the surrounding barrier 25a itself is not a ring structure, and after the end of the surrounding barrier 25a is engaged with the inner wall surface of the sleeve portion 241, the sealing region 26 is surrounded by the surrounding barrier 25a, the sleeve portion 241 and the cap body 24 a.

Since the external shape of the plug body 20 may be different in each country, the internal space of the plug body 20 may be different, and in this case, the layout of each electronic component on the power conversion unit 21 may be changed, and therefore, in order to avoid interference of the electronic components by the enclosure 25a and the sealing region 26, the area of the sealing region 26 is expanded by using the sleeve portion 241 as a part enclosing the sealing region 26, so as to avoid interference with the power conversion unit 21.

(b) In order to cover the cap 24 and match with the end of the opening 202 of the plug body 20 shown in fig. 1, the cap 24 further includes a convex ring portion 242, the sleeve portions 241 and the convex ring portions 242 are respectively disposed on the end surface of the cap body 24a at intervals, a weld line 240 for welding with the plug body 20 is disposed in an annular cavity between the convex ring portion 242 and the sleeve portion 241, the weld line 240 and the cap 24 are integrally formed, after the cap 24 is covered on the opening 202 of the plug body 20, the cap 24 and the plug body 20 are ultrasonically welded, and during the welding process, the weld line 240 and the end of the opening 202 are welded together, so that the cap 24 and the plug body 20 are fixed.

(c) As shown in fig. 2 to 17, the end cap assembly further includes a reinforcing boss 27 fixed to the other end of the cover 24, the reinforcing boss 27 being located in the sealing region 26, and the pass-through member 23 passing through the reinforcing boss 27. Under the condition that the wall thickness of the sealing cover 24 is thinner, after the reinforcing boss 27 and the sealing cover 24 are integrally formed, the strength can be increased, when the conducting element 23 passes through the reinforcing boss 27 and then is plugged with the plugging part fixedly welded on the power conversion unit 21, in the plugging process, because the reaction force of the plugging of the conducting element 23 and the plugging part can be transmitted to the sealing cover 24, the sealing cover 24 can be prevented from being damaged through the reinforcing effect of the reinforcing boss 27.

Claims

1. The end cover assembly of the power converter comprises a conducting element (23) and a sealing cover (24), wherein one end of the sealing cover (24) is provided with a socket (243) with a slotted hole, and one end of the conducting element (23) is matched with the slotted hole in the socket (243), the end cover assembly is characterized in that the other end of the sealing cover (24) is provided with a surrounding baffle (25 a), a sealing area (26) is formed between the surrounding baffle (25 a) and the sealing cover (24), at least the other end of the conducting element (23) is of a solid structure, the other end of the conducting element (23) penetrates through the slotted hole in the socket (243) and then enters the sealing area (26), and sealant (26 a) for sealing a gap between the conducting element (23) and the slotted hole is injected into the sealing area (26).

2. The end cap assembly of the power converter according to claim 1, wherein the slot hole is a stepped hole, the conducting element (23) includes a first connecting portion (23 a) and a second connecting portion (23 b), one end of the first connecting portion (23 a) is provided with a slot, the first connecting portion (23 a) is U-shaped, the other end of the first connecting portion (23 a) is engaged with the stepped surface of the slot hole, and one end of the second connecting portion (23 b) is fixed to the other end of the first connecting portion (23 a).

3. End cap assembly for a power converter according to claim 1, wherein the enclosure (25 a) is an annular member.

4. The end cover assembly of the power converter according to claim 1, wherein the cover (24) comprises a cover body (24 a) and an annular sleeve portion (241), the sleeve portion (241) is disposed on an end face of the cover body (24 a), the enclosure (25 a) is located in an area inside the sleeve portion (241) on the cover body (24 a), the enclosure (25 a) is of a non-closed structure, and after an end portion of the enclosure (25 a) is matched with an inner wall face of the sleeve portion (241), the sealing area (26) is enclosed by the enclosure (25 a), the sleeve portion (241) and the cover body (24 a).

5. An end cap assembly for a power converter according to any of claims 1 to 4, further comprising a reinforcing boss (27) fixed to the other end of the cover (24), the reinforcing boss (27) being located in the sealing region (26), the conducting element (23) passing through the reinforcing boss (27).

6. The end cap assembly of the power converter according to any one of claims 1 to 4, further comprising a pressing sleeve (28), wherein the sealing cover (24) is provided with a mounting hole, after the pressing sleeve (28) is matched with the mounting hole on the sealing cover (24), one end of the pressing sleeve (28) is located at one end of the sealing cover (24), the other end of the pressing sleeve (28) is located in the sealing area (26), and the sealant (26 a) fills a gap between the pressing sleeve (28) and the mounting hole.

7. The end cap assembly of the power converter according to claim 4, wherein the cover (24) further comprises a convex ring portion (242), the sleeve portion (241) and the convex ring portion (242) are respectively arranged on the end face of the cover body (24 a) at intervals, and a weld line (240) for welding with the plug body (20) is provided in an annular cavity between the convex ring portion (242) and the sleeve portion (241).