An excavator engine coolant heating device

Abstract

The utility model discloses an excavator engine cooling liquid heating device, the cooling liquid outlet of engine communicates with the cooling liquid tank through the pipeline, the cooling liquid tank communicates with the cooling liquid pump through the pipeline, the cooling liquid pump communicates with the solenoid valve through the pipeline, the solenoid valve communicates with the inlet of heater through the pipeline, the solenoid valve communicates with the cooling liquid inlet of engine through the pipeline, the outlet of heater communicates with the cooling liquid inlet of engine through the pipeline, the utility model discloses being provided with heater to the preheating of cooling liquid, improves the flowability of cooling liquid in engine, avoids the engine starting difficulty caused by low temperature and reduced flowability of cooling liquid, guarantees the normal work of engine, and the device still is provided with temperature sensor and is equipped with the central control box automatic preheating under low temperature environment, need not the manual opening and closing of driver, has good convenience and applicability.

Description

Technical Field

[0001] This utility model relates to the field of heating device technology, specifically to a heating device for excavator engine coolant. Background Technology

[0002] An excavator, also known as a digging machine or a soil excavator, is an earthmoving machine that uses a bucket to dig materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile.

[0003] Traditional excavator engines are not equipped with an independent coolant heating system. When the excavator is working in extremely cold regions, when the temperature is below minus 20 degrees Celsius, the engine coolant may become less fluid due to the low temperature, making it difficult to start the engine and thus affecting its normal operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an excavator engine coolant heating device to address the shortcomings of the prior art, thereby solving at least one of the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A coolant heating device for excavator engines includes an engine, a coolant tank, a coolant pump, a solenoid valve, a heater, a temperature sensor, a central control box, a battery, and a start switch. The coolant outlet of the engine is connected to the coolant tank through a pipe. The coolant tank is connected to the coolant pump through a pipe. The coolant pump is connected to the solenoid valve through a pipe. The solenoid valve is connected to the inlet of the heater through a pipe. The solenoid valve is connected to the coolant inlet of the engine through a pipe. The outlet of the heater is connected to the coolant inlet of the engine through a pipe. The coolant tank is equipped with a temperature sensor. The central control box is electrically connected to the start switch, the battery, the temperature sensor, the engine, the heater, and the solenoid valve.

[0006] Furthermore, the heater is an electric heater.

[0007] Furthermore, the heater is a fuel heater, which is connected to the excavator's fuel tank via a pipe.

[0008] Furthermore, the engine is driven by a generator, which is electrically connected to a battery.

[0009] Furthermore, the solenoid valve is a two-position three-way solenoid valve.

[0010] Furthermore, the central control box is electrically connected to a display.

[0011] The beneficial effects of this utility model are:

[0012] This invention preheats the coolant by incorporating a heater, thereby improving the fluidity of the coolant in the engine and preventing starting difficulties caused by reduced coolant fluidity at low temperatures. This ensures the normal operation of the engine. Furthermore, the device automatically preheats the coolant in low-temperature environments by incorporating a temperature sensor in conjunction with the central control box, eliminating the need for manual operation by the driver. This provides greater convenience and applicability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a simplified schematic diagram of the present utility model.

[0015] The attached diagram lists the components represented by each number as follows:

[0016] 1. Engine; 2. Coolant tank; 3. Coolant pump; 4. Solenoid valve; 5. Heater; 6. Temperature sensor; 7. Central control box; 8. Battery; 9. Start switch. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1: See Figure 1This is a schematic diagram of the various structures of this utility model, including an engine 1, a coolant tank 2, a coolant pump 3, a solenoid valve 4, a heater 5, a temperature sensor 6, a central control box 7, a battery 8, and a start switch 9. The coolant outlet of the engine 1 is connected to the coolant tank 2 via a pipe, allowing coolant from the engine 1 to enter the coolant tank 2. The coolant tank 2 is connected to the coolant pump 3 via a pipe, and the coolant pump 3 is connected to the solenoid valve 4 via a pipe. The solenoid valve 4 is connected to the inlet of the heater 5 via a pipe, and also to the coolant inlet of the engine 1 via a pipe. The solenoid valve 4 can switch between allowing coolant from the coolant tank 2 to enter the heater 5 or directly enter the engine 1. The coolant enters the cooling system of engine 1. The outlet of heater 5 is connected to the coolant inlet of engine 1 through a pipe. After being heated, the coolant enters the cooling system of engine 1. Coolant tank 2 is equipped with temperature sensor 6 to detect the temperature of coolant in coolant tank 2. Central control box 7 is electrically connected to start switch 9, battery 8, temperature sensor 6, engine 1, heater 5, and solenoid valve 4. Start switch 9 transmits start signal to central control box 7. Central control box 7 controls the flow of coolant and the opening and closing of engine 1, heater 5, and coolant pump 3. Temperature signal from temperature sensor 6 is transmitted to central control box 7, and central control box 7 issues commands based on temperature signal.

[0024] Specifically, heater 5 is an electric heater 5 that heats the coolant and can raise the temperature of the coolant by 10-20 degrees without affecting the coolant flow rate.

[0025] Specifically, heater 5 is a fuel heater 5, which is connected to the excavator's fuel tank through a pipe. It heats the coolant by burning fuel, which can raise the coolant temperature by 10-20 degrees without affecting the coolant flow rate, saving energy. The capacity of battery 8 can be reduced during the design process to meet the power supply of this system.

[0026] Specifically, the engine 1 is connected to a generator, which is electrically connected to the battery 8. The engine 1 supplies power to the battery 8, and the battery 8 stores electrical energy.

[0027] Specifically, solenoid valve 4 is a two-position three-way solenoid valve 4.

[0028] Specifically, the central control box 7 is electrically connected to a display screen, which displays preheating information on the screen to remind the driver that preheating is in progress.

[0029] The principle of this utility model:

[0030] The engine is an excavator engine, and the engine drive is connected to a generator. The generator is electrically connected to the battery to charge the battery and keep it fully charged, which facilitates the starting of various electrical devices. The central control box and start switch are located in the cab. The coolant tank is the excavator coolant tank, and the coolant pump, heater, and battery are all located in the engine compartment.

[0031] When the temperature of the coolant in the coolant tank 2 is below 20 degrees Celsius, the driver presses the start button. The temperature sensor 6 transmits a signal to the central control box 7, which in turn transmits a signal to the solenoid valve 4, connecting the coolant pump 3 and the heater 5. The coolant pump 3 is disconnected from the engine 1. The central control box 7 controls the coolant pump 3 and heater 5 to start. The coolant enters the heater 5 and is heated, raising its temperature by 15 degrees Celsius. The heated coolant then enters the cooling system of the engine 1. The preheating time is 30 seconds, after which the original low-temperature coolant in the engine 1 is fully discharged. Once the preheating time is over, the central control box 7 controls the engine 1 to start. The engine 1 runs, and the heater 5 continues to heat the coolant. The temperature sensor 6 detects the temperature in the coolant tank 2. When the temperature in the coolant tank 2 reaches 0 degrees Celsius, the central control box 7 transmits a signal to the solenoid valve 4, disconnecting the coolant pump 3 from the heater 5 and connecting the coolant pump 3 to the engine 1. At this time, the coolant in the coolant tank 2 is directly supplied to the cooling system of the engine 1, and the central control box 7 controls the heater 5 to shut down.

[0032] When the temperature of the coolant in the coolant tank 2 is higher than or equal to 20 degrees Celsius, the driver presses the start button. The temperature sensor 6 transmits a signal to the central control box 7, which cuts off the pipeline between the coolant pump 3 and the heater 5, connects the coolant pump 3 to the engine 1, and the central control box 7 controls the coolant pump 3 to start. The coolant in the coolant tank 2 is directly supplied to the cooling system of the engine 1, and the central control box 7 directly controls the engine 1 to start.

[0033] This invention preheats the coolant by incorporating a heater 5, thereby improving the fluidity of the coolant in the engine 1 and preventing starting difficulties caused by reduced coolant fluidity at low temperatures. This ensures the normal operation of the engine 1. Furthermore, the device automatically preheats the coolant in low-temperature environments by incorporating a temperature sensor 6 in conjunction with the central control box 7, eliminating the need for manual operation by the driver. This provides greater convenience and applicability.

[0034] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A coolant heating device for an excavator engine, characterized in that: The system includes an engine (1), a coolant tank (2), a coolant pump (3), a solenoid valve (4), a heater (5), a temperature sensor (6), a central control box (7), a battery (8), and a start switch (9). The coolant outlet of the engine (1) is connected to the coolant tank (2) through a pipe. The coolant tank (2) is connected to the coolant pump (3) through a pipe. The coolant pump (3) is connected to the solenoid valve (4) through a pipe. The solenoid valve (4) is connected to the inlet of the heater (5) through a pipe. The solenoid valve (4) is connected to the coolant inlet of the engine (1) through a pipe. The outlet of the heater (5) is connected to the coolant inlet of the engine (1) through a pipe. The coolant tank (2) is equipped with a temperature sensor (6). The central control box (7) is electrically connected to the start switch (9), the battery (8), the temperature sensor (6), the engine (1), the heater (5), and the solenoid valve (4).

2. The excavator engine coolant heating device according to claim 1, characterized in that: The heater (5) is an electric heater (5).

3. The excavator engine coolant heating device according to claim 1, characterized in that: The heater (5) is a fuel heater (5), which is connected to the excavator's fuel tank via a pipe.

4. The excavator engine coolant heating device according to claim 1, characterized in that: The engine (1) is connected to a generator, which is electrically connected to a battery (8).

5. The excavator engine coolant heating device according to claim 1, characterized in that: The solenoid valve (4) is a two-position three-way solenoid valve (4).

6. The excavator engine coolant heating device according to claim 1, characterized in that: The central control box (7) is electrically connected to a display.

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