Automobile vacuum pump with double safety guarantee structures

Abstract

The utility model relates to an automobile vacuum pump, in particular to an automobile vacuum pump with a double safety guarantee structure, which comprises a vacuum pump body and a thermostat arranged on one side of the vacuum pump body, a first water inlet pipe is fixedly mounted on the side wall of the thermostat, and a second water outlet pipe is fixedly mounted at the lower end of the thermostat. A first water outlet pipe is fixedly installed at the upper end of the thermostat, the heat dissipation mechanism is fixedly connected with the other end of the first water outlet pipe, the cooling liquid flow area in the middle of the first water outlet pipe is larger than that at the two ends of the first water outlet pipe, and the circulating pump is driven through an output shaft of the vacuum pump body, so that cooling liquid achieves internal circulation in the vacuum pump body. The vacuum pump body drives the fan to rotate, the high-heat cooling liquid circulating into the heat dissipation mechanism is rapidly cooled, the cooling liquid flow area of the middle section of the first water outlet pipe is increased, so that the speed of the cooling liquid entering the heat dissipation mechanism is reduced, heat dissipation of the high-heat cooling liquid is more sufficient, and the heat dissipation effect of the vacuum pump body is further improved.

Description

Technical Field

[0001] The utility model relates to an automotive vacuum pump, especially an automotive vacuum pump with a dual safety guarantee structure. Background Art

[0002] In order to improve the performance and reliability of automotive vacuum pumps, the cooling, heat dissipation, protection, and safety guarantee system has gradually become an important part of the design of automotive vacuum pumps. If the temperature of the automotive vacuum pump is too high during operation, it will cause power loss of the vacuum pump main body, thereby affecting the traction of the motor vehicle, and at the same time increasing the fuel consumption of the vacuum pump main body. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide an automotive vacuum pump with a dual safety guarantee structure to solve the problems in the related art that if the temperature of the automotive vacuum pump is too high during operation, it will cause power loss of the vacuum pump main body, thereby affecting the traction of the motor vehicle, and at the same time increasing the fuel consumption of the vacuum pump main body.

[0004] To achieve the above object, according to one aspect of the utility model, there is provided an automotive vacuum pump with a dual safety guarantee structure, including a vacuum pump main body and a thermostat provided on one side of the vacuum pump main body. A first water inlet pipe is fixedly installed on the side wall of the thermostat, a second water outlet pipe is fixedly installed at the lower end of the thermostat, and a first water outlet pipe is fixedly installed at the upper end of the thermostat. It further includes:

[0005] A heat dissipation mechanism, the heat dissipation mechanism is fixedly connected to the other end of the first water outlet pipe. The coolant flow area in the middle of the first water outlet pipe is larger than that at both ends, which is used to reduce the flow rate of the coolant entering the first water outlet pipe and further improve the heat dissipation effect of the heat dissipation mechanism.

[0006] Further, a circulation pump is coaxially connected to the output end of the vacuum pump main body. The other end of the second water outlet pipe is fixedly connected to the circulation pump and is internally connected. The other end of the circulation pump is coaxially connected to a fan.

[0007] Further, a water inlet part is provided on one side wall of the vacuum pump main body, and a water outlet part is provided at the other end of the vacuum pump main body.

[0008] Further, a water inlet manifold is fixedly installed at the water inlet part. The other end of the water inlet manifold is fixedly installed with a second water inlet pipe. The other end of the second water inlet pipe is fixedly connected to the circulation pump and is internally connected. A water outlet manifold is fixedly installed at the water outlet part. The other end of the water outlet manifold is fixedly connected to the first water inlet pipe and is internally connected.

[0009] Further, a return pipe is fixedly installed at the upper end of the heat dissipation mechanism. The other end of the return pipe is fixedly installed with a water tank.

[0010] Further, the heat dissipation mechanism includes an upper flow plate. A first cavity is formed in the upper flow plate. The first water outlet pipe is fixedly connected to the upper flow plate and internally communicated therewith. The return pipe is fixedly connected to the upper flow plate and internally communicated therewith.

[0011] Further, a lower flow plate is provided at the lower end of the upper flow plate. A second cavity is formed in the lower flow plate. A plurality of heat dissipation pipes are fixedly installed on the lower surface of the upper flow plate. The other ends of the plurality of heat dissipation pipes are fixedly connected to the lower flow plate.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] In the automotive vacuum pump with a dual safety guarantee structure, the circulating pump is driven by the output shaft of the vacuum pump main body, so that the coolant realizes internal circulation inside the vacuum pump main body, achieving the initial cooling safety guarantee for the vacuum pump main body; the fan is driven by the vacuum pump main body to rotate, so that the high-temperature coolant circulated into the heat dissipation mechanism is quickly cooled down. By increasing the coolant flow area in the middle section of the first water outlet pipe, the speed of the coolant entering the heat dissipation mechanism is slowed down, so that the high-temperature coolant is more fully dissipated, further improving the heat dissipation effect of the vacuum pump main body, further improving the working efficiency of the vacuum pump main body, reducing the fuel consumption, and achieving the dual cooling and heat dissipation safety guarantee effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic structural diagram of the overall automotive vacuum pump with a dual safety guarantee structure;

[0015] Figure 2 FIG. is a schematic side view structural diagram of the automotive vacuum pump with a dual safety guarantee structure;

[0016] Figure 3 FIG. is a schematic structural diagram of the overall heat dissipation mechanism.

[0017] Illustration:

[0018] 1. Thermostat; 101. First water inlet pipe; 102. Second water outlet pipe; 103. First water outlet pipe; 2. Heat dissipation mechanism; 201. Upper flow plate; 202. Lower flow plate; 203. Heat dissipation pipe; 3. Vacuum pump main body; 301. Circulating pump; 302. Fan; 303. Water inlet part; 3031. Water inlet manifold; 3032. Second water inlet pipe; 304. Water outlet part; 3041. Water outlet manifold; 4. Water tank; 401. Return pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in combination with the accompanying drawings and preferred embodiments, details the specific embodiments, structures, features and their effects of the present utility model as follows.

[0020] Please refer to Figures 1 - 3 As shown, the purpose of this embodiment is to provide an automotive vacuum pump with a dual safety protection structure, including a vacuum pump main body 3 and a thermostat 1 provided on one side of the vacuum pump main body 3. The thermostat 1 automatically adjusts the amount of water entering the radiator according to the coolant temperature, changes the circulation range of the coolant, adjusts the heat dissipation capacity of the cooling system, and ensures that the vacuum pump main body 3 operates within a suitable temperature range. A first water inlet pipe 101 is fixedly installed on the side wall of the thermostat 1, a second water outlet pipe 102 is fixedly installed at the lower end of the thermostat 1, and a first water outlet pipe 103 is fixedly installed at the upper end of the thermostat 1. It further includes:

[0021] A heat dissipation mechanism 2, the heat dissipation mechanism 2 is fixedly connected to the other end of the first water outlet pipe 103. The coolant flow area in the middle of the first water outlet pipe 103 is larger than that at both ends, which is used to reduce the flow rate of the coolant entering the first water outlet pipe 103 and further improve the heat dissipation effect of the heat dissipation mechanism 2.

[0022] The output end of the vacuum pump main body 3 is coaxially connected with a circulation pump 301. The other end of the second water outlet pipe 102 is fixedly connected to and internally communicated with the circulation pump 301. The other end of the circulation pump 301 is coaxially connected with a fan 302. The circulation pump 301 and the fan 302 coaxially connected to the output shaft of the vacuum pump main body 3 are started, which is used to transport the coolant through the circulation pump 301 into the cooling pipeline inside the vacuum pump main body 3, absorb the heat generated by the vacuum pump main body 3, and air-cool the coolant that circulates out of the vacuum pump main body 3 and has high heat through the fan 302.

[0023] A water inlet part 303 is arranged on one side wall of the vacuum pump main body 3, and a water outlet part 304 is arranged at the other end of the vacuum pump main body 3. A water inlet manifold 3031 is fixedly installed on the water inlet part 303, and the other end of the water inlet manifold 3031 is fixedly installed with a second water inlet pipe 3032. The other end of the second water inlet pipe 3032 is fixedly connected to and internally communicated with the circulation pump 301. A water outlet manifold 3041 is fixedly installed on the water outlet part 304, and the other end of the water outlet manifold 3041 is fixedly connected to and internally communicated with the first water inlet pipe 101. The circulation pump 301 is used to transport the coolant through the second water inlet pipe 3032 into the cooling pipeline inside the vacuum pump main body 3 from the water inlet part 303, so that the coolant that absorbs the heat of the vacuum pump main body 3 enters the first water inlet pipe 101 through the water outlet part 304, which is used to make the coolant circulate inside the cooling pipeline of the vacuum pump main body 3.

[0024] A return pipe 401 is fixedly installed at the upper end of the heat dissipation mechanism 2, and the other end of the return pipe 401 is fixedly installed with a water tank 4. In order to prevent the temperature in the pipeline of the automotive vacuum pump from increasing, causing the coolant to expand and contract due to heat, thereby increasing the pressure in the pipeline of the automotive vacuum pump, the excess coolant in the pipeline of the automotive vacuum pump is stored in the water tank 4 through the return pipe 401 for storing the coolant through the water tank 4.

[0025] The heat dissipation mechanism 2 includes an upper flow plate 201, the water tank 4 is fixedly installed on the upper surface of the upper flow plate 201, a first cavity is formed in the upper flow plate 201, the first water outlet pipe 103 is fixedly connected to and internally communicated with the upper flow plate 201, the return pipe 401 is fixedly connected to and internally communicated with the upper flow plate 201, a lower flow plate 202 is arranged at the lower end of the upper flow plate 201, a second cavity is formed in the lower flow plate 202, a cooling pipe 2021 is fixedly installed on the lower surface of the lower flow plate 202, the other end of the cooling pipe 2021 is fixedly connected and internally communicated with the circulation pump 301, a plurality of heat dissipation pipes 203 are fixedly installed on the lower surface of the upper flow plate 201, the other ends of the plurality of heat dissipation pipes 203 are fixedly connected to the lower flow plate 202, the heat dissipation mechanism 2 is arranged at one end of the fan 302, and a plurality of heat dissipation fins are arranged on the upper surface of the upper flow plate 201 and the lower surface of the lower flow plate 202 for increasing the contact area between the heat dissipation mechanism 2 and the air, further improving the heat dissipation efficiency of the heat dissipation mechanism 2, further improving the power of the vacuum pump main body, reducing the fuel consumption of the vacuum pump main body, and reducing the use cost.

[0026] When the present utility model is specifically used, the vacuum pump main body 3 rotates, and then the circulation pump 301 and the fan 302 coaxially connected to the output shaft of the vacuum pump main body 3 operate. At this time, the circulation pump 301 sends the coolant into the cooling pipeline inside the vacuum pump main body 3 through the second water inlet pipe 3032 and the water inlet manifold 3031 from the water inlet part 303, then the coolant enters the water outlet manifold 3041 from the water outlet part 304 of the vacuum pump main body 3, and finally enters the first water inlet pipe 101. At this time, the temperature of the coolant is relatively low, and the coolant enters the thermostat 1 from the first water inlet pipe 101 and then flows into the circulation pump 301. When the temperature of the coolant rises, after the coolant enters the thermostat 1 from the first water inlet pipe 101, part of the coolant enters the first cavity inside the upper flow plate 201 through the first water outlet pipe 103, and then the coolant enters a plurality of heat dissipation pipes 203. At this time, the fan 302 cools the coolant in the plurality of heat dissipation pipes 203 by rotating, and then the coolant enters the second cavity inside the lower flow plate 202, and finally the coolant returns to the circulation pump 301 from the heat dissipation mechanism 2 through the cooling pipe 2021.

[0027] The above are only the preferred embodiments of the present utility model, and do not impose any formal restrictions on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the disclosed technical content above. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An automotive vacuum pump with a dual safety guarantee structure, characterized in that, It includes a vacuum pump main body (3) and a thermostat (1) provided on one side of the vacuum pump main body (3). A first water inlet pipe (101) is fixedly installed on the side wall of the thermostat (1), a second water outlet pipe (102) is fixedly installed at the lower end of the thermostat (1), and a first water outlet pipe (103) is fixedly installed at the upper end of the thermostat (1). It further includes: A heat dissipation mechanism (2), the heat dissipation mechanism (2) is fixedly connected to the other end of the first water outlet pipe (103). The coolant flow area in the middle of the first water outlet pipe (103) is larger than that at both ends, which is used to reduce the flow rate of the coolant entering the first water outlet pipe (103) and improve the heat dissipation effect of the heat dissipation mechanism (2).

2. The automotive vacuum pump with a dual safety guarantee structure according to claim 1, characterized in that, The output end of the vacuum pump main body (3) is coaxially connected with a circulation pump (301). The other end of the second water outlet pipe (102) is fixedly connected to the circulation pump (301) and is internally connected. The other end of the circulation pump (301) is coaxially connected with a fan (302).

3. The automotive vacuum pump with a dual safety guarantee structure according to claim 2, characterized in that, A water inlet part (303) is provided on one side wall of the vacuum pump main body (3), and a water outlet part (304) is provided at the other end of the vacuum pump main body (3).

4. The automotive vacuum pump with a dual safety guarantee structure according to claim 3, characterized in that, An inlet manifold (3031) is fixedly installed on the water inlet part (303). The other end of the inlet manifold (3031) is fixedly installed with a second water inlet pipe (3032). The other end of the second water inlet pipe (3032) is fixedly connected to the circulation pump (301) and is internally connected. An outlet manifold (3041) is fixedly installed on the water outlet part (304). The other end of the outlet manifold (3041) is fixedly connected to the first water inlet pipe (101) and is internally connected.

5. The automotive vacuum pump with a dual safety guarantee structure according to claim 4, characterized in that, A return pipe (401) is fixedly installed at the upper end of the heat dissipation mechanism (2). The other end of the return pipe (401) is fixedly installed with a water tank (4).

6. The automotive vacuum pump with a dual safety guarantee structure according to claim 5, characterized in that, The heat dissipation mechanism (2) includes an upper flow plate (201). A first cavity is formed inside the upper flow plate (201). The first water outlet pipe (103) is fixedly connected to the upper flow plate (201) and is internally connected. The return pipe (401) is fixedly connected to the upper flow plate (201) and is internally connected.

7. The automotive vacuum pump with a dual safety guarantee structure according to claim 6, characterized in that, A lower flow plate (202) is arranged at the lower end of the upper flow plate (201). A second cavity is formed inside the lower flow plate (202). A plurality of heat dissipation pipes (203) are fixedly installed on the lower surface of the upper flow plate (201). The other ends of the plurality of heat dissipation pipes (203) are fixedly connected to the lower flow plate (202).

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