Heat dissipation system of electric agricultural machine

Abstract

The utility model discloses a heat dissipation system of an electric agricultural machine in the technical field of agricultural machinery, which is characterized in that all pipelines for connecting a water tank, a water pump and a working motor are replaced by heat dissipation pipelines, the heat dissipation pipelines are fixed on a frame, and cooling water can exchange heat with the frame in a circulating process through a cooling part in the heat dissipation pipelines, so that the heat dissipation efficiency is improved. The advantage of large surface area of the frame is fully utilized, cooling of the cooling water is achieved in the cooling water circulation process, the cooling effect on the cooling water is ensured, active cooling of the cooling water in a traditional cooling system is omitted, flying dust is prevented from being gathered on an active cooling device, and the service life of the cooling water is prolonged. The maintenance cost of the heat dissipation system is reduced, and the normal operation of the whole device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely is a kind of electric agricultural machinery heat dissipation system. BACKGROUND

[0002] In agricultural production, modern agricultural machinery is crucial, however large-scale use of diesel engine consumes a large amount of fuel resources and causes serious pollution to the environment, in recent years, with the development of new energy technology, the agricultural machinery product powered by new energy is used more and more widely;

[0003] However, when the motor electric energy is converted into kinetic energy, a large amount of heat needs to be released, and if the heat is not dissipated in time, the motor will work abnormally or even be burned out, in order to ensure the normal operation of the motor, the motor needs to use a special electric radiator with a large size, which is matched with a cooling fan for heat dissipation, and a cooling water circulation method is also used to cool the motor, but the cooling water also needs to be matched with a cooling fan for heat dissipation in the circulation process, the use environment of agricultural machinery is very bad, a large amount of dust will be generated during use, the dust in the air will move towards the cooling fan under the action of airflow, and finally gather on the surface of the cooling fan, which needs to be cleaned frequently and is difficult to clean, and also easily causes damage to the cooling fan, affecting the normal operation of the agricultural machinery.

[0004] Based on this, the utility model designs a kind of electric agricultural machinery heat dissipation system to solve the above problems. UTILITY MODEL CONTENTS

[0005] To achieve the above purpose, the utility model provides the following technical scheme: according to the electric agricultural machinery heat dissipation system of claim, including frame, water tank, water pump and working motor, still including heat dissipation pipeline, the heat dissipation pipeline includes the cooling part for heat exchange with air and frame fixed on frame and the connecting part at both ends of cooling part, the connecting part is used to connect water tank or water pump or working motor;Water tank is communicated with water pump and working motor by two heat dissipation pipelines respectively, and at least one heat dissipation pipeline is communicated between working motor and water pump to form a circulation passage.

[0006] As a further scheme of the utility model, at least one of the water tank, the water pump and the working motor is installed at the front end of the length direction of the frame, and at least one is installed at the rear end of the length direction of the frame.

[0007] As a further scheme of the utility model, the cooling part includes a pipeline for cooling water flow and a fin fixed on the surface of the pipeline for heat exchange with the frame and the air.

[0008] As a further scheme of the utility model, the pipeline is provided with a plurality of fins on the surface of the fin, and all the pipelines provided on the same fin are connected in parallel.

[0009] As a further scheme of the utility model, the several heat dissipation pipelines are distributed on different wall surfaces of the frame.

[0010] As a further scheme of the utility model, the water cooling assembly is arranged on the working motor, the water cooling assembly, the water tank and the water pump all have water inlets and outlets, the water outlet of the water tank is connected with the water inlet of the water pump through the heat dissipation pipeline, the water outlet of the water pump is connected with the water inlet of the water cooling assembly through the heat dissipation pipeline, and the water outlet of the water cooling assembly is connected with the water inlet of the water tank through the heat dissipation pipeline.

[0011] As a further scheme of the utility model, the fin width is matched with the frame height or width.

[0012] As a further scheme of the utility model, the cooling part includes two fins, the two fins are separately arranged on two sides of the pipeline and are used for heat exchange with the frame and air respectively.

[0013] As a further scheme of the utility model, the part of the frame, on which the cooling part is arranged, is provided with a dust cover.

[0014] As a further scheme of the utility model, the two ends of the pipeline in the length direction are provided with transition sections, and the transition sections are used for connecting the pipeline and the connecting part.

[0015] The utility model has the following beneficial effects:

[0016] The utility model connects the water tank, the water pump and the working motor through the heat dissipation pipeline, the heat dissipation pipeline is fixed on the frame, the cooling water can be heat-exchanged with the frame in the circulation process through the cooling part in the heat dissipation pipeline, and then the heat is dissipated through the frame, the advantage of the large surface area of the frame is fully utilized, the cooling effect of the cooling water is ensured, the active heat dissipation of the cooling water in the traditional heat dissipation system is omitted, the dust is prevented from gathering on the active heat dissipation device, the maintenance cost of the heat dissipation system is reduced, and the normal operation of the whole device is ensured.

[0017] In addition to the purposes, characteristics and advantages described above, the utility model has other purposes, characteristics and advantages. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings that form a part of this application provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used for explaining the utility model and do not constitute improper limitation on the utility model.

[0019] Figure 1 It is a general structure schematic view of the utility model.

[0020] Figure 2The first example schematic view of the cooling part in the utility model.

[0021] Figure 3 The second example schematic view of the cooling part in the utility model.

[0022] Figure 4 The transition section schematic view between the cooling part and the connecting part in the utility model.

[0023] Legend:

[0024] 1, frame; 2, water tank; 3, water pump; 4, working motor; 41, water cooling assembly; 5, cooling part; 51, pipeline; 52, fin; 6, connecting part; 7, dust cover; 8, transition section. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.

[0026] Please refer to Figures 1-4 The utility model provides a technical scheme: an electric agricultural machine heat dissipation system, including frame 1, water tank 2, water pump 3 and working motor 4, still including heat dissipation pipeline, heat dissipation pipeline includes the cooling part 5 for being used for carrying out heat exchange with air and frame 1 and being fixed on frame 1 and the connecting part 6 at the both ends of cooling part 5, and the connecting part 6 is used for connecting water tank 2 or water pump 3 or working motor 4;Water tank 2 is communicated water pump 3 and working motor 4 respectively through two heat dissipation pipelines, and working motor 4 and water pump 3 are communicated through at least one heat dissipation pipeline, to form circulation passageway;

[0027] As Figure 1As shown, the water tank 2, water pump 3 and working motor 4 are connected by a heat dissipation pipeline to form a circulating path for the cooling water to flow, and during operation, the cooling water is driven by the water pump 3 to circulate between the water tank 2, water pump 3 and working motor 4, and when the cooling water flows between the water tank 2, water pump 3 and working motor 4, it will take away the heat generated by the working motor 4 during operation, and at this time, the temperature of the cooling water itself will rise, in order to ensure the cooling effect of the cooling water on the working motor 4 and ensure the stable operation of the working motor 4, the cooling water needs to be cooled down, and the heat dissipation pipeline has a cooling part 5 and a connecting part 6, the cooling part 5 is connected to the water tank 2 or water pump 3 or working motor 4 through the connecting part 6, so that the cooling water can normally circulate between the water tank 2, water pump 3 and working motor 4, and the cooling part 5 is attached to the surface of the frame 1 of the agricultural machine, so that the cooling water circulating in the cooling part 5 during operation can exchange heat with the frame 1, and the heat absorbed by the cooling water during circulation is conducted to the frame 1, and at the same time, the cooling part 5 can also quickly exchange heat with the air to achieve passive cooling of the cooling water during circulation. The frame 1 of the electric agricultural machine is mostly made of high-strength steel, which has good heat dissipation effect, and through the cooling part 5 in the heat dissipation pipeline, the cooling water can exchange heat with the frame 1 during circulation, and then the heat is dissipated through the frame 1, fully utilizing the large surface area of the frame 1 to ensure the cooling effect of the cooling water, and the active cooling of the cooling water in the traditional heat dissipation system is saved, preventing dust from gathering on the active cooling device, reducing the maintenance cost of the heat dissipation system, and ensuring the normal operation of the whole device.

[0028] Specifically, at least one of the water tank 2, water pump 3 and working motor 4 is installed at the front end of the length direction of the frame 1, and at least one is installed at the rear end of the length direction of the frame 1, which maximizes the spacing between the water tank 2, water pump 3 and working motor 4, and under the premise of not bending the heat dissipation pipeline, the overall length of the heat dissipation pipeline is increased, and the flow distance of the cooling water in the heat dissipation pipeline during single circulation is increased, and at the same time, after the length of the heat dissipation pipeline is increased, the contact area between the cooling part 5 in the heat dissipation pipeline and the frame 1 and the air is increased, the heat exchange area between the cooling part 5 and the frame 1 and the air is increased, and the heat dissipation effect of the heat dissipation pipeline on the cooling water during operation is further improved.

[0029] Specifically, as shown in Figure 2 The cooling part 5 includes a pipeline 51 for the cooling water to flow and fins 52 fixed on the surface of the pipeline 51 for heat exchange with the frame 1 and the air, the fins 52 are fixed on the frame 1 and contact the frame 1, and when the cooling water flows in the pipeline 51, the heat of the cooling water is first conducted to the fins 52 through the pipeline 51, and then conducted to the frame 1 or directly exchanged with the air, so as to dissipate the heat absorbed by the cooling water during circulation, and ensure the temperature of the cooling water during circulation, and ensure the cooling effect of the cooling water on the working motor 4;

[0030] As shown in Figure 3 In some examples, the pipe 51 is provided on the surface of the fin 52, all the pipes 51 provided on the same fin are connected in parallel, the pipes 51 are connected in parallel to increase the contact area between the pipe 51 and the fin 52, and the heat exchange effect between the pipe 51 and the fin 52 is improved, and the multiple pipes 51 are arranged to disperse the heat, the pipes 51 contact the fin 52 at different positions to exchange heat with the fin 52 at different positions, the heat is prevented from being concentrated on a certain area of the fin 52, and the heat exchange effect between the pipe 51 and the fin 52 is further improved.

[0031] As shown in Figure 1 In some examples, the heat dissipation pipes are arranged on different wall surfaces of the frame 1, the frame 1 is generally a rectangular tube, and the heat dissipation pipes can be arranged on different wall surfaces of the same rectangular tube or different rectangular tubes of the frame 1, so that the heat of the cooling water can be conducted to different wall surfaces of the rectangular tube or different rectangular tubes of the frame 1, the heat is prevented from being concentrated on a certain area of the frame 1, the heat is prevented from being accumulated on the frame 1, and the heat exchange effect between the heat dissipation pipes and the frame 1 is further improved.

[0032] Specifically, the working motor 4 is a water-cooled motor, as shown in Figure 1 The working motor 4 is provided with a water-cooled assembly 41, the water-cooled assembly 41, the water tank 2 and the water pump 3 each have a water inlet and a water outlet, the water outlet of the water tank 2 is connected to the water inlet of the water pump 3 through a heat dissipation pipe, the water outlet of the water pump 3 is connected to the water inlet of the water-cooled assembly 41 through a heat dissipation pipe, and the water outlet of the water-cooled assembly 41 is connected to the water inlet of the water tank 2 through a heat dissipation pipe. The cooling water enters the water-cooled assembly 41 from the water inlet of the water-cooled assembly 41 to cool the motor, and then exits from the water outlet of the water-cooled assembly 41.

[0033] During operation, the water pump 3 draws the cooling water in the water tank 2 into the water-cooled assembly 41, and then the cooling water exits from the water outlet of the water-cooled assembly 41 and returns to the water tank 2 again, so as to realize the circulation of the cooling water between the water tank, the water tank and the working motor.

[0034] Specifically, in some examples, the width of the fin 52 matches the height or width of the frame 1, so that the fin 52 can completely fit the frame 1, the available heat exchange area between the fin 52 and the frame 1 can be fully used, the heat exchange efficiency between the fin 52 and the frame 1 is improved, and the cooling effect of the cooling water is improved.

[0035] Specifically, in some examples, the cooling part 5 includes two fins 52, which are arranged on both sides of the pipeline 51 and used for heat exchange with the vehicle frame 1 and air, so as to further improve the heat dissipation effect of the pipeline.

[0036] Since the working environment of the agricultural machine is relatively harsh, the surface of the cooling part 5 is very easy to adsorb dust, thereby affecting the heat dissipation effect of the cooling part 5, therefore, in some examples, the part of the vehicle frame 1 on which the cooling part 5 is installed is provided with a dust cover 7, so as to prevent the dust generated during the working process from being adsorbed to the surface of the fin 52, reduce the influence of the dust on the heat exchange efficiency of the fin 52, and make the fin 52 always maintain a high heat exchange efficiency.

[0037] Specifically, in some examples, the two ends of the pipeline 51 in the length direction are both provided with a transition section 8, which is used for connecting the pipeline 51 and the connecting part 6, and the connecting part 6 and the single pipeline 51 or the plurality of pipelines 51 are connected through the transition section 8, in order to ensure the contact area of the pipeline 51 and the fin 52, the pipeline 51 is generally designed as a square tube, and the connecting part 6 is generally designed as a round tube in order to connect the water tank 2 or the water pump or the working motor, at this time, the transition section 8 is needed to connect the pipeline 51 and the connecting part 6, and when there are a plurality of pipelines 51 in the same cooling part 5, the transition section 8 is also needed to connect the plurality of pipelines 51 and the connecting part 6.

[0038] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cooling system for electric agricultural machinery, comprising a frame (1), a water tank (2), a water pump (3), and a working motor (4), characterized in that: It also includes a heat dissipation pipeline, which includes a cooling section (5) fixed on the frame (1) for exchanging heat with the air and the frame (1) and a connecting section (6) provided at both ends of the cooling section (5). The connecting section (6) is used to connect a water tank (2) or a water pump (3) or a working motor (4). The water tank (2) is connected to the water pump (3) and the working motor (4) through two heat dissipation pipes respectively. The working motor (4) and the water pump (3) are connected through at least one other heat dissipation pipe to form a circulation path.

2. The electric agricultural machinery heat dissipation system according to claim 1, characterized in that: At least one of the water tank (2), water pump (3) and working motor (4) is installed at the front end of the frame (1) along its length, and at least one is installed at the rear end of the frame (1) along its length.

3. The electric agricultural machinery heat dissipation system according to claim 1, characterized in that: The cooling section (5) includes a pipe (51) for supplying cooling water and fins (52) fixed on the surface of the pipe (51) for exchanging heat with the frame (1) and the air.

4. The electric agricultural machinery heat dissipation system according to claim 3, characterized in that: The pipes (51) are provided on the surface of the fin (52) in several ways, and all the pipes (51) provided on the same fin are connected in parallel.

5. The electric agricultural machinery heat dissipation system according to claim 1, characterized in that: Several of the aforementioned heat dissipation pipes are distributed on different walls of the frame (1).

6. The electric agricultural machinery heat dissipation system according to claim 1, characterized in that: The working motor (4) is equipped with a water cooling component (41). The water cooling component (41), water tank (2) and water pump (3) all have water inlet and water outlet. The water outlet of the water tank (2) is connected to the water inlet of the water pump (3) through a heat dissipation pipe. The water outlet of the water pump (3) is connected to the water inlet of the water cooling component (41) through a heat dissipation pipe. The water outlet of the water cooling component (41) is connected to the water inlet of the water tank (2) through a heat dissipation pipe.

7. The electric agricultural machinery heat dissipation system according to claim 3, characterized in that: The width of the fin (52) matches the height or width of the frame (1).

8. The electric agricultural machinery heat dissipation system according to claim 3, characterized in that: The cooling section (5) includes two fins (52), which are located on both sides of the pipe (51) and are used for heat exchange with the frame (1) and the air, respectively.

9. The electric agricultural machinery heat dissipation system according to claim 1, characterized in that: The portion of the frame (1) on which the cooling unit (5) is installed is provided with a dust cover (7).

10. The electric agricultural machinery heat dissipation system according to claim 3, characterized in that: The pipeline (51) has transition sections (8) at both ends along its length, and the transition sections (8) are used to connect the pipeline (51) and the connecting part (6).

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