CN209469480U - A kind of silencer for generator - Google Patents

Abstract

The utility model relates to silencer field, especially a kind of silencer for generator, including upper cover, lower cover, first partition and second partition, the first partition and second partition are successively installed in upper cover and lower cover；The surrounding of the second partition and first partition fits closely, and centre is equipped with ventilating duct, is equipped with ventilation hole on the first partition and the second partition；Ventilating duct is equipped between the first partition and the upper cover；Ventilating duct is equipped between the second partition and the lower cover.Silencer is formed by the way that first partition and second partition are mounted in upper cover and lower cover combination, without by the way that partition welding is achieved the purpose that cooling of eliminating the noise, having saved the production time again, thus the production cycle is reduced, improves production efficiency.

Description

A kind of silencer for generator

Technical field

The utility model relates to silencer field, especially a kind of silencer for generator.

Background technique

It is well known that the natural silencer that install for noise elimination in generator, such silencer are usually to utilize Multiple bolts of perforation muffler body are mounted on engine main body, in order to improve in muffler body based on bolt formation The intensity of fastening part, and make the waste gas flow direction prescribed direction just flowed into muffler body, finally it is discharged from gas outlet.

In existing technology, as shown in Figure 1, three pieces of partitions are welded on the lower cover (2) of silencer, in first piece of partition (10) welding is equipped with ventilation duct (14) connection first chamber (6) and second chamber (7) on, and second piece of partition (11) is equipped with lattice Grid flow into third chamber (8) from second chamber (7) by grid wind, and third block partition (12) is equipped with two ventilation ducts (14), And then wind flows into the 4th chamber (9) from third chamber (8), is additionally provided with an escape pipe (13) on third block partition (12), out The other end of tracheae is pierced by lower cover (2) and is discharged afterwards.Existing silencer realizes noise reduction cooling by three pieces of partitions of welding, therefore needs Will on lower cover (2) welding diaphragm, ventilation duct and discharge pipe, it is therefore desirable in advance to welding position position then welding It connects, thus increases the production time, reduce production efficiency.

Summary of the invention

The goal of the invention of the utility model is: first position to partition and then exist for needs of the existing technology The problem of welding is to reduce production efficiency is carried out, a kind of silencer for generator is provided.

In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:

A kind of silencer for generator, including upper cover, lower cover, first partition and second partition, the upper cover, lower cover The first partition and second partition are pressed together on centre；The surrounding of the second partition and first partition fits closely, intermediate Equipped with ventilating duct, ventilation hole is equipped on the first partition and the second partition；The first partition and the upper cover it Between be equipped with ventilating duct；Ventilating duct is equipped between the second partition and the lower cover.

As a preferred embodiment of the present invention, the second partition includes frame and interconnecting piece；The interconnecting piece setting Among frame, the longitudinal cross-section of the interconnecting piece is W-shaped.The silencer of the prior art with lower cover is flat due to the first fast partition It is capable, thus wind enter after first chamber will be transmitted back to by first piece of partition on the lower cover side parallel with first piece of partition with The wind of air inlet, which is formed, to be collided, prevent wind circulates from good.The section of interconnecting piece provided by the present application is in W type, when from leading Fan housing, which enters the gas in silencer and can flow into lower cover bottom after the reflection of the interconnecting piece of W type, will not be reflected back air inlet Place can guarantee the good circulation of gas because colliding without being formed with the wind of air inlet.

As a preferred embodiment of the present invention, the interconnecting piece includes the first arc groove and the second arc groove, institute The junction of the first arc groove and second arc groove is stated lower than frame.The shape and structure of first partition and second partition Equally, the junction of the first arc groove and the second arc groove is lower than frame, the frame of such first partition and second partition It is intermediate after fitting closely can be flowed into the first arc groove from the second arc groove with circulated gases, gas.

As a preferred embodiment of the present invention, the lower lid is equipped with air inlet, and the upper lid is equipped with air outlet；Institute The ventilation hole for stating second partition is located at the side of second arc groove far from the air inlet.By the ventilation on second partition Hole, which is located at the second arc groove and can extend gas far from that side of air inlet, combines the gas to be formed with lower cover in second partition Circulation road distance preferably can carry out cooling noise reduction to gas.And after first partition is combined with second partition, first partition Ventilation hole on ventilation hole and second partition is located on opposite position, and gas is just flowed into from the second arc groove of second partition Second arc groove of first partition extends circulation distance of the gas in silencer again, can preferably cool down to gas Noise reduction.

As a preferred embodiment of the present invention, the radian measure alpha of first arc groove and second arc groove is 45-60°.If the radian of α is less than 45 °, the space in the first arc groove becomes smaller, and reduces first partition and second partition Between accommodation space；If the radian of α is excessive, the mesh by gas by reflection back reflection to the bottom of lower cover is just not achieved , radian crosses conference and gas is reflected at air inlet.

As a preferred embodiment of the present invention, the silencer further includes outer cover, and the outer cover is mounted on the upper cover With lower cover outside.Silencer is mounted on the mounting rack of generator by outer cover.

Compared with prior art, beneficial effects of the present invention: by by first partition and second partition be mounted on upper cover and Combination forms silencer in lower cover, without by the way that partition welding is achieved the purpose that cooling of eliminating the noise, having saved production again Time, thus the production cycle is reduced, improve production efficiency.

Detailed description of the invention:

Fig. 1 is the structural schematic diagram of the silencer of the prior art；

Fig. 2 provides the structural schematic diagram one of the silencer for generator for the application；

Fig. 3 provides the structural schematic diagram two of the silencer for generator for the application.

Marked in the figure: 1- upper cover, 11- air outlet, 2- lower cover, 21- air inlet, 3- first partition, 31- ventilation hole, 4- Two partitions, 41- frame, 42- interconnecting piece, the first arc groove of 421-, the second arc groove of 422-, 5- outer cover, 6- first chamber, 7- second chamber, 8- third chamber, the 4th chamber of 9-, first piece of partition of 10-, second piece of partition of 11-, 12- third block partition, 13- escape pipe, 14- escape pipe.

Specific embodiment

With reference to the accompanying drawing, the utility model is described in detail.

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model.

In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention System.

In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can , can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis Concrete condition understands the concrete meaning of above-mentioned term.

As shown in Figures 2 and 3, a kind of silencer for generator provided by the present application, including upper cover 1, lower cover 2, One partition 3, second partition 4 and outer cover 5, the first partition 3 and second partition 4 are successively installed in upper cover 1 and lower cover 2, institute It states upper cover 1, lower cover 2 and the first partition 3 and second partition 4 is pressed together on centre.Outer cover 5 is mounted on the outer of upper cover 1 and lower cover 2 Face, will be on the mounting rack of entire silencer installation generator by outer cover 5.The surrounding of the second partition 4 and first partition 3 is tight Closely connected conjunction, centre are equipped with ventilating duct, are equipped with ventilation hole 31 on the first partition 3 and the second partition 4；Described first every Ventilating duct is equipped between plate 3 and the upper cover 1；Ventilating duct is equipped between the second partition 4 and the lower cover 2.

For first partition 3 as the structure of second partition 4, first partition 3 and second partition 4 include frame 41 and connection Portion 42；The interconnecting piece 42 is arranged among frame 41, and the longitudinal cross-section of the interconnecting piece 42 is W-shaped.Interconnecting piece 42 includes the One arc groove 421 and the second arc groove 422, the connection of first arc groove 421 and second arc groove 422 Place is lower than the height of frame 41.The lower cover 2 is equipped with air inlet 21, and the upper cover 1 is equipped with air outlet 11；Described second every The ventilation hole 31 of plate 4 is located at side of second arc groove 422 far from the air inlet 21.

The position of air inlet 21 is opposite with the position of air outlet 11, i.e., air outlet 11 be located at the upper cover 1 far from it is described into The side in air port 21.Second partition 4 is first passed around from the gas that air inlet 21 flows into this way, and the ventilation formed is combined with lower cover 2 Road, the ventilation hole 31 for then passing through second partition 4 flow into second partition 4 and combine the ventilating duct formed with first partition 3, then pass through The ventilation hole 31 for crossing first partition 3 flows into first partition 3 and combines the ventilating duct formed, the finally outlet air Jing Guo upper cover 1 with upper cover 1 Mouthfuls 11 flow out, and by silencer provided by the present application, gas circulates three times back and forth in silencer, increase gas circulation away from From, therefore can preferably achieve the effect that the noise reduction that cools down.

In order to enable gas more good can circulate in vent passages, the first arc groove 421 and the second arc is recessed The radian of slot 422 is arranged at 45-60 °, and if the radian of α is less than 45 °, the space in the first arc groove 421 becomes smaller, and reduces Accommodation space between first partition 3 and second partition 4；If the radian of α is excessive, just it is not achieved gas after reflection It is reflected into the purpose of the bottom of lower cover 2, radian crosses conference and gas is reflected at air inlet.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (6)

1. a kind of silencer for generator, which is characterized in that including upper cover (1), lower cover (2), first partition (3) and second Partition (4)；The first partition (3) and second partition (4) are pressed together on centre by the upper cover (1), lower cover (2)；Described second The surrounding of partition (4) and first partition (3) fits closely；It is equipped on the first partition (3) and the second partition (4) logical Air holes (31)；Ventilating duct is equipped between the first partition (3) and the upper cover (1)；The second partition (4) and the lower cover (2) ventilating duct is equipped between.

2. the silencer according to claim 1 for generator, which is characterized in that the second partition (4) includes side Frame (41) and interconnecting piece (42)；Interconnecting piece (42) setting is intermediate in frame (41), the longitudinal cross-section of the interconnecting piece (42) It is W-shaped.

3. the silencer according to claim 2 for generator, which is characterized in that the interconnecting piece (42) includes first Arc groove (421) and the second arc groove (422), first arc groove (421) and second arc groove (422) Junction be lower than frame (41).

4. the silencer according to claim 3 for generator, which is characterized in that the lower cover (2) is equipped with air inlet Mouth (21), the upper cover (1) are equipped with air outlet (11)；The ventilation hole (31) of the second partition (4) is located at second arc Side of the connected in star (422) far from the air inlet (21).

5. the silencer according to claim 3 for generator, which is characterized in that first arc groove (421) Radian measure alpha with second arc groove (422) is 45-60 °.

6. the silencer according to claim 1-5 for generator, which is characterized in that the silencer also wraps It includes outer cover (5), the outer cover (5) is mounted on outside the upper cover (1) and lower cover (2).