CN219769823U

CN219769823U - Defrosting system and working machine

Info

Publication number: CN219769823U
Application number: CN202320345196.2U
Authority: CN
Inventors: 赵计明
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-09-29
Anticipated expiration: 2033-02-28

Abstract

The utility model relates to the technical field of defrosting equipment, and provides a defrosting system and an operating machine. The defrosting system comprises a heat exchanger, an air supply device and a defrosting air duct, wherein the heat exchanger is arranged in the exhaust pipe, an air inlet of the heat exchanger is connected with an air inlet pipe, and an air outlet of the heat exchanger is connected with an air outlet pipe; the air outlet of the air supply device is communicated with the air inlet pipe; the defrosting air duct is arranged on one side of the windshield, which is positioned outside the vehicle, and is communicated with the air outlet pipe, and is provided with at least one air outlet facing the windshield. The defrosting system and the operation machine provided by the utility model can recycle the heat of the exhaust gas in the exhaust pipe, blow the air heated by the air to the windshield to realize the defrosting function, eliminate the limitation of the instrument desk structure on the formation of the air outlet, flexibly set the position and the size of the air outlet according to the shape of the windshield, and achieve better defrosting effect.

Description

Defrosting system and working machine

Technical Field

The utility model relates to the technical field of defrosting equipment, in particular to a defrosting system and an operating machine.

Background

Work machines such as excavators are various in work environments, and work is often required to be performed in a relatively cold environment. When the working temperature is low, the windshield of the working machine is easy to frost, and adverse effects are caused on the observation of external conditions by working personnel, so that the method has important significance for defrosting the windshield.

At present, the working machine mainly uses the heat of the cooling liquid in the engine to perform heat exchange through the evaporator in the cab, heats the cold air in the cab, and uses a blower to defrost in a mode of blowing hot air out through an air duct and an air outlet of a front instrument desk.

The working machine adopting the defrosting mode has the defrosting effect limited by the temperature of the engine cooling liquid, and cannot achieve good defrosting effect when the temperature of the engine cooling liquid is low. Meanwhile, the instrument desk structure limits the formation of the air outlet, so that the problems of small defrosting coverage and poor defrosting efficiency are also caused.

Disclosure of Invention

The utility model provides a defrosting system and a working machine, which are used for solving the problem that a defrosting mode adopted by the working machine in the prior art is poor in defrosting effect.

The present utility model provides a defrosting system comprising:

the heat exchanger is arranged in the exhaust pipe, an air inlet of the heat exchanger is connected with an air inlet pipe, and an air outlet of the heat exchanger is connected with an air outlet pipe;

the air outlet of the air supply device is communicated with the air inlet pipe; and

the defrosting air duct is arranged on one side, located outside the vehicle, of the windshield, is communicated with the air outlet pipe, and is provided with at least one air outlet facing the windshield.

According to the defrosting system provided by the utility model, the air inlet of the air supply device is provided with the filtering device.

According to the defrosting system provided by the utility model, the defrosting air duct is of a tubular structure, and the air outlet is arranged close to the side wall of the windshield.

According to the defrosting system provided by the utility model, the defrosting air duct is provided with the protective net at the air outlet.

According to the defrosting system provided by the utility model, the air outlets are arranged at intervals along the length direction of the defrosting air duct.

According to the present utility model, there is provided a defrosting system, further comprising:

the control switch is electrically connected with the air supply device and is used for controlling the air supply device to operate.

The utility model also provides a working machine, which comprises a vehicle body and the defrosting system, wherein the vehicle body comprises a cab, at least one side of the cab is provided with the windshield, and the defrosting air duct is fixed in the cab.

According to the working machine provided by the utility model, the defrosting air duct is arranged on the outer side of the cab, and the air outlet faces the outer side of the windshield.

According to the working machine provided by the utility model, the front side of the cab is provided with the first windshield and the second windshield, the first windshield and the second windshield are vertically arranged, the defrosting air duct is vertically arranged, and the air outlets respectively corresponding to the first windshield and the second windshield are arranged in the defrosting air duct.

According to the working machine provided by the utility model, the air supply device is electrically connected with the power supply system of the vehicle body.

According to the defrosting system provided by the utility model, the heat of the exhaust gas in the exhaust pipe can be recovered through the heat exchanger, the air sent by the air supply device is heated, and the heated air is blown to the windshield by the defrosting air duct to realize the defrosting function.

Further, the work machine according to the present utility model has the above-described advantages because it includes the defrosting system.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a connection structure of a defrosting system according to the present utility model;

FIG. 2 is a schematic view of a defrost duct mounting structure in a defrost system provided by the present utility model;

reference numerals:

1. an engine; 2. an exhaust pipe; 3. a heat exchanger; 4. an air outlet pipe; 5. an air supply device; 6. a defrosting air duct; 7. a filtering device; 8. an air inlet pipe; 9. a windshield; 10. a cab; 11. an air outlet; 12. and a protective net.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

A defrosting system according to an embodiment of the present utility model is described below with reference to fig. 1 and 2, wherein arrows in fig. 1 indicate the flow direction of the gas.

The defrosting system comprises a heat exchanger 3, an air supply device 5 and a defrosting air duct 6, wherein the heat exchanger 3 is arranged in an exhaust pipe 2 of an engine 1, an air inlet of the heat exchanger 3 is connected with an air inlet pipe 8, and an air outlet of the heat exchanger 3 is connected with an air outlet pipe 4; the air outlet of the air supply device 5 is communicated with an air inlet pipe 8; the defrosting air duct 6 is arranged on one side of the windshield 9 positioned outside the vehicle, the defrosting air duct 6 is communicated with the air outlet pipe 4, and the defrosting air duct 6 is provided with at least one air outlet 11 facing the windshield 9.

In the above scheme, when the air supply device 5 is operated, the air sent by the air supply device 5 can enter the heat exchanger 3 through the air inlet pipe 8, and the exhaust gas generated by the engine 1 can exchange heat with the exhaust gas in the heat exchanger 3 after entering the exhaust pipe 2, so that the temperature of the air in the heat exchanger 3 is raised, the air after the temperature rise enters the defrosting air duct 6 through the air outlet pipe 4 and is blown to the windshield 9 through the air outlet 11 of the defrosting air duct 6, and the windshield 9 is defrosted.

Alternatively, the heat exchanger 3 adopts a tube-in-tube or coil structure, and its air inlet and air outlet extend to the outside of the exhaust pipe 2 to connect the air inlet pipe 8 and the air outlet pipe 4.

According to the defrosting system of the embodiment of the present utility model, the air outlet 11 of the defrosting air duct 6 may be provided to face the outside of the windshield 9, or may face the inside of the windshield 9. In this embodiment, the air outlet is preferably directed to the outside of the windshield 9, so that the defrosting air duct 6 is easier to install, does not occupy the space in the cab 10, and facilitates the design of the position of the air outlet 11 according to the position of the windshield 9.

It should be noted that, the defrosting system according to the embodiment of the present utility model is not limited to only one defrosting air duct 6, and the same defrosting air duct 6 is not limited to only one windshield 9 for defrosting, and can be flexibly designed according to the size and number of the windshields 9. In an alternative, the defrosting air duct 6 may be provided with more than two defrosting air ducts 6, each defrosting air duct 6 being connected to the air outlet duct 4, respectively, in which case each defrosting air duct 6 may defrost one larger sized windshield 9 at the same time, or may defrost different windshields 9. In another alternative, the defrost duct 6 extends through windshields 9 on different sides of the cab 10, and air outlets 11 are provided at respective positions of the windshields 9. In a further alternative, the defrost duct 6 is arranged between windshields 9 on adjacent sides of the cab 10, and the defrost duct 6 is provided on both sides with air outlets 11 corresponding to the respective side windshields 9, respectively.

According to the air supply device 5 provided by the embodiment of the utility model, the waste gas is not directly utilized for defrosting, but the heat in the waste gas is recycled in a heat exchange mode, so that the waste gas can be prevented from being filtered, and the application difficulty and the application cost are reduced.

In some embodiments of the present utility model, the defrosting air duct 6 is a tubular structure, and may be a tubular structure with any shape, such as a round tube or a square tube, and in the embodiments of the present utility model, a square tube structure is preferred, which has advantages of convenient installation and hole opening. The side walls of the defrost duct 6 adjacent to the windscreen 9 are provided with air outlets 11, it being understood that when more than two side walls of the defrost duct 6 are respectively adjacent to the windscreen 9, the air outlets 11 may be respectively provided on different side walls of the defrost duct 6.

In the embodiment of the present utility model, the connection position between the defrosting air duct 6 and the air outlet duct 4 may be the end of the defrosting air duct 6, or may be the side wall of the defrosting air duct 6, which is not specifically limited herein. It will be appreciated that the defrost duct 6 should be closed except at the location where it is connected to the outlet duct 4 and at the location of the outlet 11.

Optionally, the defrosting air duct 6 is provided with a protection net 12 at the air outlet 11. The protection net 12 is preferably made of metal, so that the protection net has better firmness. The protective net 12 can prevent sundries from entering the defrosting air duct 6, and can also prevent sundries from being sprayed out to collide with the windshield 9 when the air in the defrosting air duct 6 is wrapped with the sundries.

Optionally, defrosting wind channel 6 is provided with the clearance mouth, and clearance mouth communicates inside defrosting wind channel 6, and clearance mouth position can be dismantled through modes such as bolted connection or joint and be connected with the shutoff board, can utilize clearance instrument to clear up defrosting wind channel 6 inside when dismantling the shutoff board.

Optionally, the air outlets 11 are arranged at intervals along the length direction of the defrosting air duct 6, so that air can be supplied to different positions of the windshield 9 simultaneously, and a better defrosting effect is achieved.

According to the defrosting system of the embodiment of the utility model, the air supply device 5 can be a blower, and the air inlet of the air supply device 5 is provided with the filtering device 7 to prevent sundries from entering the defrosting system.

Optionally, the filtering device 7 comprises a filtering pipeline, filter cotton is arranged in the filtering pipeline, an operation port is formed in the side wall of the filtering pipeline and communicated to the inside of the filtering pipeline, an operation door plate is arranged at the operation port, and when the operation door plate is opened, the operation of cleaning and replacing the filter cotton can be performed.

In some embodiments of the present utility model, the defrosting system further includes a control switch electrically connected to the air supply device 5, and the control switch is used to control the air supply device 5 to operate. The driver can select the active start-stop defrosting system according to the environment requirement, so that the electric energy waste of the air supply device 5 caused by operation when defrosting is not needed is avoided.

The embodiment of the utility model also provides a working machine, which comprises a vehicle body and the defrosting system, wherein the vehicle body comprises a cab 10, at least one side of the cab 10 is provided with a windshield 9, and the defrosting air duct 6 is fixed on the cab 10.

Alternatively, the defrost duct 6 is disposed outside the cab 10, and the air outlet 11 is directed to the outside of the windshield 9. Taking the structure shown in fig. 2 as an example, the defrost duct 6 may be provided on the skeleton outside the cab 10 and adjacent to the windshield 9.

With continued reference to fig. 2, optionally, a first windshield and a second windshield are disposed on the front side of the cab 10, the first windshield and the second windshield are vertically arranged, the defrosting air duct 6 is vertically disposed, and the defrosting air duct 6 is provided with air outlets 11 corresponding to the first windshield and the second windshield respectively, so that a main field of view of an operator in the cab 10 can be covered, and normal operation of the operator in the cab 10 in a low-temperature environment is ensured.

Optionally, the defrosting system includes a control switch, the control switch is electrically connected with the air supply device 5, the control switch is used for controlling the air supply device 5 to operate, the control switch is arranged in the cab 10, and an operator can conveniently perform start-stop control in the cab 10.

Optionally, the air supply device 5 is electrically connected with a power supply system of the vehicle body, and is powered by a vehicle-mounted power supply of the working machine, so that no additional power supply equipment is required, and the installation and use cost is reduced.

The working vehicle according to the embodiment of the present utility model may be a working machine such as a crane, an excavator, a pile machine, or a working vehicle such as a boarding car, a fire truck, a mixer truck, or the like, and is not particularly limited herein, in other words, the working machine may use the defrosting system according to the present utility model.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A defrost system, comprising:

the heat exchanger (3), the heat exchanger (3) is arranged in the exhaust pipe (2), an air inlet of the heat exchanger (3) is connected with an air inlet pipe (8), and an air outlet of the heat exchanger (3) is connected with an air outlet pipe (4);

the air outlet of the air supply device (5) is communicated with the air inlet pipe (8);

the defrosting air duct (6) is arranged on one side, located outside the vehicle, of the windshield (9), the defrosting air duct (6) is communicated with the air outlet pipe (4), and the defrosting air duct (6) is provided with at least one air outlet (11) towards the windshield (9).

2. Defrost system according to claim 1, wherein the air inlet of the air supply device (5) is provided with a filter device (7).

3. Defrost system according to claim 1, wherein the defrost duct (6) is of tubular construction, the defrost duct (6) being provided with the air outlet (11) adjacent to a side wall of the windscreen (9).

4. Defrosting system according to claim 1, characterized in that the defrosting air duct (6) is provided with a protective screen (12) at the air outlet (11).

5. Defrost system according to claim 1, wherein the air outlets (11) are arranged at intervals in the length direction of the defrost duct (6).

6. The defrost system of any one of claims 1 to 5, further comprising:

the control switch is electrically connected with the air supply device (5) and is used for controlling the air supply device (5) to operate.

7. A working machine, characterized by comprising a vehicle body and a defrost system as claimed in any one of claims 1 to 6, the vehicle body comprising a cab (10), at least one side of the cab (10) being provided with the windshield (9), the defrost duct (6) being fixed to the cab (10).

8. Work machine according to claim 7, characterized in that the defrost duct (6) is arranged outside the cab (10) and the air outlet (11) is directed towards the outside of the windscreen (9).

9. Work machine according to claim 7, characterized in that the front side of the cab (10) is provided with a first windscreen (9) and a second windscreen (9), the first windscreen (9) being arranged vertically with the second windscreen (9), the defrost duct (6) being arranged vertically, the defrost duct (6) being provided with the air outlets (11) corresponding to the first windscreen (9) and the second windscreen (9), respectively.

10. Work machine according to any of claims 7 to 9, characterized in that the air supply device (5) is electrically connected to the power supply system of the vehicle body.