CN221324438U - Lighting device - Google Patents

Abstract

The embodiment of the utility model provides a lighting device, and relates to the technical field of lighting equipment. The lighting device comprises a lamp body and a power line, wherein an installation cavity is arranged in the lamp body, the installation cavity comprises a glue filling cavity, a first matching part is arranged on the inner wall of the glue filling cavity, the power line comprises an outer package part and a wire core which are connected through wires, a connector is integrally formed at one end of the outer package part, the connector is connected with the first matching part and at least partially located in the glue filling cavity, the wire core penetrates through the outer package part and is exposed out of the connector, the glue filling cavity is filled with waterproof glue, one end of the wire core is located in the installation cavity and penetrates out of the glue filling cavity, the glue filling cavity is filled with waterproof glue, the probability that moist air enters the installation cavity from an assembly inlet is reduced, moist air is prevented from entering the lamp body due to siphonage, and accordingly the light emitting effect of the lamp body is guaranteed.

Description

Lighting device

Technical Field

The utility model relates to the technical field of lighting equipment, in particular to a lighting device.

Background

In order to be able to use the lighting function normally, lighting devices applied in different scenes need to meet different waterproof and dustproof grades (Ingress Protection, IP grades). For example, a lighting device that is partially used outdoors is required to have a higher IP level. For lighting devices with higher IP levels, a fully enclosed architecture is typically employed to achieve their IP levels.

According to the research of the inventor, in some existing lighting devices, after the power wire is installed in the lamp body, after the lighting device is started to perform a lighting function, the air pressure in the lighting device is increased due to the fact that the temperature is increased in the lighting device, so that air in the lighting device can be discharged out of the shell from a part with weak sealing performance, and after the lighting device is shut down to perform the lighting function, the temperature is reduced in the lighting device, so that the power wire stretches into a hole of the lamp body to generate siphoning, and moist air is led into the lamp body, so that the light emitting effect of the lamp body is affected.

Disclosure of utility model

The utility model aims to provide a lighting device, which can improve the assembly tightness of a lamp body and a power line, thereby avoiding the formation of water drops in the lamp body due to the siphon phenomenon and ensuring the light emitting effect of the lamp body.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides a lighting device comprising:

The lamp body is internally provided with a mounting cavity, the mounting cavity comprises a glue filling cavity, and the inner wall of the glue filling cavity is provided with a first matching part;

The power cord comprises an outer wrapping piece and a wire core which are connected, one end of the outer wrapping piece is integrally formed with a connector, the connector is connected with the first matching part and is at least partially positioned in the glue filling cavity, and the wire core is penetrated through the outer wrapping piece and is exposed out of the connector;

wherein, the encapsulating cavity is filled with waterproof glue, and the one end of sinle silk is located the installation cavity and wears out the encapsulating cavity.

In an alternative embodiment, the connector includes first connecting portion and second connecting portion that connect gradually, and first connecting portion is connected with the outer wall of outer package, and first connecting portion is connected with first cooperation portion, and the second connecting portion is the fretwork form and is located the encapsulating cavity, and the sinle silk passes outer package and second connecting portion and one end and wears out the encapsulating cavity.

In an alternative embodiment, the wire core comprises a fastening piece, an inner package and a conductive wire, wherein the inner package is arranged on the outer package in a penetrating manner, the conductive wire is arranged on the inner package in a penetrating manner, and the fastening piece is sleeved on the inner package.

In an alternative embodiment, the clamping member is simultaneously sleeved on the inner package member and the conductive wire, and waterproof glue is filled between the clamping member and the conductive wire and/or between the clamping member and the inner package member.

In an alternative embodiment, the tightening piece is a heat shrink tube, and the tightening piece is located in the installation cavity and located at one end of the conductive wire penetrating out of the glue filling cavity.

In an alternative embodiment, the glue-pouring cavity is provided with an assembly inlet, the connector extends into the glue-pouring cavity from the outside of the lamp body through the assembly inlet, and the connector is provided with a sealing part for sealing the assembly inlet.

In an alternative embodiment, the sealing portion is a sealing plate, the radial dimension of the sealing plate is larger than the radial dimension of the fitting inlet, and the sealing plate abuts against the outer side wall of the lamp body for sealing the fitting inlet.

In an alternative embodiment, the first mating portion is an internal thread, and the connector is provided with an external thread in threaded connection with the first mating portion.

In an alternative embodiment, the glue-pouring cavity is provided with a glue-pouring opening, the direction of the glue-pouring cavity opening is consistent with the direction of the mounting cavity, and one end of the glue-pouring cavity, which is close to the glue-pouring opening, is also provided with a sealing groove.

In an alternative embodiment, the glue-pouring cavity has an assembly inlet and an assembly outlet, the radial dimension of the assembly outlet in a direction away from the assembly inlet gradually decreasing, the connector extending from the exterior of the lamp body through the assembly inlet into the glue-pouring cavity, the connector having a mating end in sealing connection with the assembly outlet.

The embodiment of the utility model has the beneficial effects that: the lighting device comprises a lamp body and a power line, wherein an installation cavity is arranged in the lamp body, the installation cavity comprises a glue filling cavity, a first matching part is arranged on the inner wall of the glue filling cavity, the power line comprises an outer package part and a wire core which are connected through wires, a connector is integrally formed at one end of the outer package part, the connector is connected with the first matching part and is at least partially positioned in the glue filling cavity, the wire core penetrates through the outer package part and is exposed out of the connector, the glue filling cavity is filled with waterproof glue, one end of the wire core is positioned in the installation cavity and penetrates out of the glue filling cavity, and the glue filling cavity is filled with waterproof glue, so that the probability that moist air enters the installation cavity from an assembly inlet is reduced, and moist air is prevented from entering the lamp body due to siphonage, so that the light emitting effect of the lamp body is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a lighting device according to an embodiment of the present utility model;

Fig. 2 is an exploded view of a lighting device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a power cord according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a power line according to an embodiment of the present utility model;

Fig. 5 is an assembly schematic diagram of a power cord and a lamp body according to an embodiment of the present utility model;

fig. 6 is an assembly schematic diagram of the connector mounting and lamp body mounting cavity provided in the embodiment of the utility model when filling waterproof glue;

fig. 7 is a schematic cross-sectional view of fig. 6.

Icon 1-lighting device; 10-a lamp body; 11-a lamp housing; 111-mounting a cavity; 112-a glue filling cavity; 1121-a first mating portion; 1122-fitting inlet; 1123-fitting outlet; 1125-a seal groove; 113-a light panel; 20-power supply lines; 21-an outer wrapper; 22-inner package; 23-conductive wires; 24-connecting heads; 241-first connection; 242-a second connection; 243-mating end; 244-seals; 25-a clamping member; 30-a reflector; 40-glass panel; 50-lamp cover; 60-sealing glue; 70-waterproof glue.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes in detail a specific structure of a lighting device and corresponding technical effects thereof according to an embodiment of the present utility model with reference to the accompanying drawings.

Referring to fig. 1-3, an illumination device 1 according to an embodiment of the utility model includes a lamp body 10, a power cord 20, a reflector 30, a glass panel 40 and a lamp cover 50.

The lamp body 10 is internally provided with an installation cavity 111, the installation cavity 111 comprises a glue filling cavity 112, the inner wall of the glue filling cavity 112 is provided with a first matching part 1121, the power line 20 comprises an outer package 21 connected by a line, a wire core and a connector 24 integrally formed at one end of the outer package 21, the connector 24 is connected with the first matching part 1121 and at least partially positioned in the glue filling cavity 112, the wire core penetrates through the outer package 21 and is exposed out of the connector 24, the glue filling cavity 112 is filled with waterproof glue 70, and one end of the wire core is positioned in the installation cavity and penetrates out of the glue filling cavity 112.

In detail, the glue-filling cavity 112 has an assembling inlet 1122 and an assembling outlet 1123, when the power cord 20 and the lamp body 10 are assembled, the connector 24 can be firstly inserted into the glue-filling cavity 112 from the self-assembling inlet 1122 outside the lamp body 10, the wire core can be inserted out of the glue-filling cavity 112 from the assembling outlet 1123 and electrically connected with the lamp body 10, and the connector 24 and the first matching part 1121 are pre-assembled and positioned, so that the connector 24 is stably installed in the glue-filling cavity 112, and an operator can conveniently fill the glue-filling cavity 112 with the waterproof glue 70.

In this embodiment, after the connector 24 penetrates into the glue-filling cavity 112 from the self-assembling inlet 1122 outside the lamp body 10, one end of the connector 24 is connected with the assembling outlet 1123, and the wire core penetrates out from one end of the connector 24 close to the assembling outlet 1123 and penetrates out of the glue-filling cavity 112 from the assembling outlet 1123. Filling the glue-filled cavity 112 with the waterproof glue 70 can reduce the probability of moist air entering the mounting cavity 111 from the mounting inlet 1122, and prevent moist air from entering the interior of the lamp body 10 due to siphoning, thereby ensuring the light-emitting effect of the lamp body 10.

It can be understood that the lamp body 10 includes a lamp housing 11, and a lamp panel 113 disposed in the lamp housing 11, wherein the lamp housing 11 is provided with an installation cavity 111, the lamp panel 113 is installed in the installation cavity 111, and the lamp panel 113 is located outside the glue filling cavity 112, the reflector 30 is connected with the lamp housing 11 and covers the lamp panel 113, and the glass panel 40 and the lamp cover 50 are connected with the lamp housing 11, and the glass panel 40 and the lamp cover 50 are sequentially disposed along the opening direction of the installation cavity 111, and in detail, in order to ensure the tightness between the glass panel 40 and the lamp housing 11, the outside water vapor is prevented from entering the lamp housing 11, the glass panel 40 and the lamp housing 11 are adhered by the glass sealant 60, and of course, the lamp cover 50 and the lamp housing 11 can be adhered by the sealant 60, and can be connected by a fastening member such as a screw.

It should be noted that, the assembly inlet 1122 is provided on an outer side wall of the lamp housing 11, that is, a portion of a side wall of the glue-pouring cavity 112 is a portion of a side wall of the lamp housing 11.

Optionally, in this embodiment, the connector 24 includes a first connecting portion 241 and a second connecting portion 242 that are sequentially connected, the first connecting portion 241 is connected to an outer wall of the outer package 21, the first connecting portion 241 is connected to the first mating portion 1121, the second connecting portion 242 is hollow and is located in the glue-pouring cavity 112, and the wire core passes through the outer package 21 and the second connecting portion 242, and one end of the wire core passes through the glue-pouring cavity 112.

It can be appreciated that a gap may exist between the wire core and the outer package 21, so that external water vapor may enter the mounting cavity 111 from the gap between the wire core and the outer package 21, and in this embodiment, since the second connection portion 242 is hollow, when the waterproof glue 70 is filled, the waterproof glue 70 can enter the second connection portion 242 from the hollow hole, so that the portion of the wire core, which is close to the first connection portion 241, is filled with insulating glue, and therefore, external water vapor can be effectively prevented from entering the mounting cavity 111 from the gap between the wire core and the outer package 21.

With continued reference to fig. 3-4, optionally, in this embodiment, the wire core includes a fastening member 25, an inner package member 22 and a conductive wire 23, the inner package member 22 is disposed through the outer package member 21, the conductive wire 23 is disposed through the inner package member 22, the fastening member 25 is sleeved on the inner package member 22, it can be understood that a gap is easily generated between the inner package member 22 and the conductive wire 23 of some existing wire cores after the lamp body 10 works to generate heat, and after the lamp body 10 stops working, the temperature is reduced and the pressure is reduced, so that a siphon phenomenon is generated, water vapor outside the lamp body 10 easily enters the mounting cavity 111 from the gap between the inner package member 22 and the conductive wire 23, and in this embodiment, the fastening member 25 can fasten the inner package member 22 and the conductive wire 23 to avoid external water vapor entering the lamp body 10.

In order to further improve the waterproof performance of the wire core, the tightening piece 25 is sleeved on the inner package 22 and the conductive wire 23 at the same time, and waterproof glue 70 is filled between the tightening piece 25 and the conductive wire 23 and/or between the tightening piece 25 and the inner package 22 at the part of the conductive wire 23 penetrating out of the inner package 22. Specifically, in the embodiment, waterproof glue 70 is filled between the fastening member 25 and the conductive wire 23 and between the fastening member 25 and the inner covering member 22, so as to prevent water vapor outside the lamp body 10 from entering the lamp body 10.

In detail, in the present embodiment, the tightening member 25 is a heat-shrinkable tube, and the tightening member 25 is located in the mounting cavity 111 and sleeved at one end of the conductive wire 23 penetrating out of the glue filling cavity 112, and the heat-shrinkable tube shrinks after the lamp body 10 is illuminated and heated, so as to tighten the inner package 22 on the conductive wire 23, thereby avoiding external water vapor from entering the lamp body 10 from the gap between the inner package 22 and the conductive wire 23.

Of course, in some alternative embodiments, the collar 25 is not limited to heat shrink tubing, but is not limited to being disposed on the inner wrap 22 within the mounting cavity 111, and the collar 25 may be any collar structure capable of collar the inner wrap 22 to the conductive wire 23.

Referring to fig. 5-7, in an alternative embodiment, the first mating portion 1121 is an internal thread, that is, an inner side wall of the glue-pouring cavity 112 is provided with an internal thread, specifically, an inner wall of the mounting inlet 1122 is provided with an internal thread, the connector 24 is provided with an external thread screwed with the first mating portion 1121, and in detail, the first connecting portion 241 is screwed with the glue-pouring cavity 112, and it is understood that since the first connecting portion 241 of the connector 24 is screwed with the inner side wall of the glue-pouring cavity 112. Therefore, after the first connection portion 241 of the connector 24 is in threaded connection with the glue-filling cavity 112, the connection strength between the connector 24 and the glue-filling cavity 112 can be ensured, the pre-assembly of the connector 24 is realized, the tightness between the connector 24 and the glue-filling cavity 112 can be ensured, and external water vapor can be effectively reduced from entering the glue-filling cavity 112 from the gap between the connector 24 and the glue-filling cavity 112.

Of course, in other embodiments, the glue-pouring cavity 112 and the connector 24 may be connected by a clamping connection, for example, the connector 24 is provided with a clamping portion for being in clamping engagement with the first mating portion 1121.

Alternatively, in the present embodiment, the axial direction of the fitting inlet 1122 is parallel to the axial direction of the fitting outlet 1123, in order to avoid the escape of the waterproofing adhesive 70 filled in the glue-pouring cavity 112 from the fitting outlet 1123, the radial dimension of the fitting outlet 1123 is gradually reduced in the direction away from the fitting inlet 1122, that is, the fitting outlet 1123 is substantially horn-shaped and gradually reduced in the direction away from the inside of the glue-pouring cavity 112, the connector 24 extends from the outside of the lamp body 10 through the fitting inlet 1122 into the glue-pouring cavity 112, and the connector 24 has the fitting end 243 in sealing connection with the fitting outlet 1123.

In order to prevent the waterproofing adhesive 70 of the adhesive filling cavity 112 from overflowing the adhesive filling cavity 112 from the fitting inlet 1122, the connection head 24 is provided with a sealing portion 244 for sealing the fitting inlet 1122, and in detail, the first connection portion 241 of the connection head 24 has the sealing portion 244 for sealing the fitting inlet 1122 to prevent the waterproofing adhesive 70 from overflowing from the fitting inlet 1122.

Alternatively, in the present embodiment, the sealing portion 244 is a sealing plate, and the radial dimension of the sealing plate is greater than the radial dimension of the fitting inlet 1122, and the sealing plate abuts against the outer sidewall of the lamp body 10 to seal the fitting inlet 1122.

Of course, in other alternative embodiments, the seal 244 may be deformed and interference fit with the fitting inlet 1122.

In detail, in the present embodiment, the mating end 243 is disposed on the second connecting portion 242, and the radial dimension of the mating end 243 in the direction away from the first connecting portion 241 is gradually reduced, it is understood that the mating end 243 and the assembly outlet 1123 are both substantially bell-mouthed, the outer wall of the mating end 243 is attached to the inner wall of the assembly outlet 1123, and when the waterproof glue 70 is filled into the glue-filling cavity 112, the waterproof glue 70 in the glue-filling cavity 112 can be effectively reduced from overflowing the glue-filling cavity 112 from the assembly outlet 1123.

Optionally, in order to avoid that when the glue filling cavity 112 is filled with the glue filling cavity 112 with the glue filling 70, the glue filling cavity 112 is filled with the glue filling 70 and is not easy to overflow the glue filling cavity 112, in this embodiment, the glue filling cavity 112 is provided with a glue filling opening, the direction of the glue filling opening is consistent with the direction of the mounting cavity 111, one end of the glue filling cavity 112, which is close to the glue filling opening, is further provided with a sealing slot 1125, that is, the glue filling cavity 112 is divided into a first cavity and a second cavity which are sequentially arranged through the setting of the sealing slot 1125, the second cavity is provided with the glue filling opening, and the radial dimension is larger than the second radial dimension, because of the setting of the sealing slot 1125, an operator can conveniently judge the amount of the glue filling 70 in the glue filling cavity 112 through the setting of the sealing slot, thereby ensuring that the glue filling cavity 112 can be filled with the glue filling 70 and the situation that the glue filling 70 overflows from the glue filling opening is reduced as much as possible.

In summary, the lighting device 1 provided by the embodiment of the utility model includes the lamp body 10 and the power cord 20, the installation cavity 111 is provided in the lamp body 10, the installation cavity 111 includes the glue filling cavity 112, the inner wall of the glue filling cavity 112 is provided with the first matching portion 1121, the power cord 20 includes the wire-connected outer package 21 and the wire core, one end of the outer package 21 is integrally formed with the connector 24, the connector 24 is connected with the first matching portion 1121 and is at least partially located in the glue filling cavity 112, the wire core is arranged in the outer package 21 in a penetrating manner and is exposed out of the connector 24, the glue filling cavity 112 is filled with the waterproof glue 70, one end of the wire core is located in the installation cavity and penetrates out of the glue filling cavity 112, the glue filling cavity 112 is filled with the waterproof glue 70, the probability that moist air enters the installation cavity 111 from the assembly inlet 1122 is reduced, the moist air is prevented from entering the inside the lamp body 10 due to the siphon, and the light emitting effect of the lamp body 10 is ensured.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A lighting device, comprising:

the lamp body (10), an installation cavity (111) is arranged in the lamp body (10), the installation cavity (111) comprises a glue filling cavity (112), and a first matching part (1121) is arranged on the inner wall of the glue filling cavity (112);

The power line (20), the power line (20) comprises an outer package (21) and a wire core which are connected, one end of the outer package (21) is integrally formed with a connector (24), the connector (24) is connected with the first matching part (1121) and is at least partially positioned in the glue filling cavity (112), and the wire core penetrates through the outer package (21) and is exposed out of the connector (24);

The glue filling cavity (112) is filled with waterproof glue (70), and one end of the wire core is located in the mounting cavity (111) and penetrates out of the glue filling cavity (112).

2. A lighting device as recited in claim 1, wherein:

the connector (24) comprises a first connecting part (241) and a second connecting part (242) which are sequentially connected, the first connecting part (241) is connected with the outer wall of the outer package (21), the first connecting part (241) is connected with the first matching part (1121), the second connecting part (242) is hollow and is positioned in the glue filling cavity (112), and the wire core passes through the outer package (21) and the second connecting part (242) and one end of the wire core passes out of the glue filling cavity (112).

3. A lighting device as recited in claim 1, wherein:

The wire core comprises a tightening piece (25), an inner wrapping piece (22) and a conductive wire (23), wherein the inner wrapping piece (22) is arranged on the outer wrapping piece (21) in a penetrating mode, the conductive wire (23) is arranged on the inner wrapping piece (22) in a penetrating mode, and the tightening piece (25) is arranged on the inner wrapping piece (22) in a sleeving mode.

4. A lighting device as recited in claim 3, wherein:

The tightening piece (25) is sleeved on the inner wrapping piece (22) and the conductive wire (23) at the same time, and waterproof glue (70) is filled between the tightening piece (25) and the conductive wire (23) and/or between the tightening piece (25) and the inner wrapping piece (22).

5. A lighting device as recited in claim 4, wherein:

The tightening piece (25) is a heat shrinkage tube, and the tightening piece (25) is positioned in the mounting cavity (111) and positioned at one end of the conductive wire (23) penetrating out of the glue filling cavity (112).

6. A lighting device as recited in claim 1, wherein:

The glue filling cavity (112) is provided with an assembly inlet (1122), the connector (24) penetrates through the assembly inlet (1122) from the outside of the lamp body (10) to extend into the glue filling cavity (112), and the connector (24) is provided with a sealing part (244) for sealing the assembly inlet (1122).

7. A lighting device as recited in claim 6, wherein:

The sealing part (244) is a sealing plate, the radial dimension of the sealing plate is larger than that of the assembly inlet (1122), and the sealing plate is abutted against the outer side wall of the lamp body (10) for sealing the assembly inlet (1122).

8. A lighting device as recited in claim 1, wherein:

The first matching part (1121) is an internal thread, and the connector (24) is provided with an external thread in threaded connection with the first matching part (1121).

9. A lighting device as recited in claim 1, wherein:

The glue filling cavity (112) is provided with a glue filling opening, the direction of the glue filling cavity (112) opening is consistent with the direction of the mounting cavity (111), and one end of the glue filling cavity (112) close to the glue filling opening is also provided with a sealing groove (1125).

10. A lighting device as recited in claim 1, wherein:

The glue-pouring cavity (112) is provided with an assembly inlet (1122) and an assembly outlet (1123), the radial dimension of the assembly outlet (1123) in the direction away from the assembly inlet (1122) is gradually reduced, the connector (24) extends into the glue-pouring cavity (112) from the outside of the lamp body (10) through the assembly inlet (1122), and the connector (24) is provided with a matched end (243) in sealing connection with the assembly outlet (1123).