Automobile water pump structure adopting active flow limiting temperature control structure

Abstract

The invention discloses an automobile water pump structure adopting an active flow-limiting temperature control structure, relates to the technical field of automobile water pumps, and aims to meet the use requirements of a radiator in an automobile on the basis of not influencing the operation of the water pump structure on the basis of the operation mode of a conventional water pump structure. The self-circulation of the cooling liquid in the flow limiting pipeline assembly is realized by adopting a cooling liquid backflow mode, which is characterized in that the cooling liquid is ensured to keep rotating through a water pump structure, but the cooling liquid in a water storage tank is not used or a small amount of cooling liquid is used on the basis of the cooling liquid bulged by the water pump structure, so that the cooling liquid in the water storage tank is not used; the method is essentially characterized in that the flowing state of the cooling liquid is directly changed according to the pressure change in the flowing state of the cooling liquid by utilizing the hydraulic pressure generated in the cooling liquid bulging process relative to the cooling liquid releasing process, and the direct understanding is that the flowing state of the cooling liquid and the pressure change are mutually restricted and balanced; the device is used for changing the supply quantity of cooling liquid according to the heat dissipation requirement of the radiator.

Description

Technical Field

[0001] The invention relates to the technical field of automobile water pumps, and in particular to an automobile water pump structure adopting an active current limiting temperature control structure. Background Art

[0002] The operating temperature of working parts such as automobile engines changes with the working conditions, so the flow rate / flow in the automobile water pump changes with the working temperature. For example, under the condition of high heat dissipation requirements, it is necessary to ensure that the coolant enters the radiator at a high flow rate / high flow rate through the automobile water pump. Conversely, under the condition of low heat dissipation requirements or even no heat dissipation requirements, the coolant enters the radiator at a low flow rate / low flow rate.

[0003] The essence of a water pump is that the high-speed rotating impeller drives the flow of the medium, but the impeller drives the flow of the medium in this way. It is difficult to meet the requirements of more precise flow control, and it takes a certain amount of time for the impeller to drive the medium to flow at a stable flow rate / velocity. Therefore, the conventional method is to control the flow rate by using valve body structures such as flow valves and solenoid valves on the basis of maintaining high-speed rotation of the impeller. This process will increase the workload of the impeller, and it should also be noted that if the radiator only needs a low-flow coolant supply, but the car water pump is not prepared to provide low-flow coolant, it will affect the heat dissipation effect of the radiator.

[0004] The present invention proposes a solution to this problem. Summary of the invention

[0005] The purpose of the present invention is to provide an automobile water pump structure with an active flow limiting temperature control structure. With regard to the operating principle and operation process of the automobile water pump, the flow control process of the pump body for a medium such as coolant cannot be fully applied to the fine temperature difference control process, which is specifically manifested as a difference in cooling supply.

[0006] The object of the present invention can be achieved by the following technical scheme: an automobile water pump structure adopting an active flow limiting temperature control structure, comprising a pump body, a water storage tank and a valve body, wherein a water inlet pipe and a water outlet pipe are respectively installed at the water inlet end and the water outlet end of the pump body, one end of the water inlet pipe extends into the water storage tank, one end of the water outlet pipe is installed on the valve body, and a flow limiting pipeline assembly is arranged between the water inlet pipe and the water outlet pipe;

[0007] The flow limiting pipeline assembly includes a return pipe, a diverter block, a water conduit and a sliding plug block. One end of the return pipe is connected to the water outlet pipe, and a primary vertical pipe is installed at the other end of the return pipe. The diverter block is installed inside the water outlet pipe in a manner parallel to the length direction of the water outlet pipe. A reflux bin and a forward flow bin are provided inside the water outlet pipe through the diverter block. The sliding plug block is arranged in the reflux bin, and the sliding plug block is slidably connected to the water outlet pipe and the diverter block. The setting position of the sliding plug block corresponds to the position of one end of the return pipe, and the primary vertical pipe is installed on the water inlet pipe.

[0008] It is further configured as follows: the diverter block is inclined at a side away from the water outlet of the pump body, and the inclination direction of one end of the diverter block points to the return pipe.

[0009] It is further configured as follows: a water conduit is slidably installed in the sliding plug block along a direction parallel to the length of the water outlet pipe, and the water conduit is fixedly connected between an end corresponding to the water outlet end of the pump body and a side of the diverter block close to the water outlet end of the pump body.

[0010] It is further configured as follows: the end of the water conduit corresponding to the water outlet end of the pump body is open, and the other end of the water conduit is closed, and a drain port is opened at the position of the water conduit corresponding to the flow-blocking cone cap.

[0011] It is further configured as follows: one end of the choke cone cap close to the water outlet end of the pump body is cylindrical, and the other end of the choke cone cap is semicircular, and the cross section of the other end of the choke cone cap is truncated cone-shaped.

[0012] It is further configured as follows: the water-passing conduit is respectively provided with a primary spring and a secondary spring at positions on both sides of the sliding plug block, and the primary spring and the secondary spring are respectively provided on the diverter block and the blocking cone cap.

[0013] It is further configured as follows: a secondary vertical pipe corresponding to the primary vertical pipe is installed on the water inlet pipe, the primary vertical pipe and the secondary vertical pipe are arranged in sequence along the direction from the water inlet end of the pump body to the water storage tank, and a ball sleeve is installed at the middle position of the water inlet pipe corresponding to the primary vertical pipe and the secondary vertical pipe.

[0014] It is further configured as follows: a liquid level sensor and an electric push rod are respectively installed at the top positions of the first-level vertical pipe and the second-level vertical pipe, the probe position of the liquid level sensor extends to the internal position of the first-level vertical pipe, the electric push rod transmission shaft penetrates into the second-level vertical pipe and is installed with a piston, and the piston is slidably connected to the inner wall of the second-level vertical pipe.

[0015] It is further configured as follows: an impeller is provided in the ball sleeve, a rotating shaft is installed in the impeller, and the impeller is rotatably connected to the ball sleeve through the rotating shaft, the setting direction of the rotating shaft is perpendicular to the setting direction of the water inlet pipe along the horizontal direction, and one end of the rotating shaft extends to the outside of the ball sleeve and is installed with a limiting block, a mounting sleeve is installed at a position of the ball sleeve corresponding to the limiting block, a shift bar is installed on the inner wall of the mounting sleeve, and a limiting groove corresponding to the shift bar is opened on the outer wall of the limiting block.

[0016] The present invention has the following beneficial effects:

[0017] 1. The overall structure does not change the structure of the automobile water pump itself, and a flow-limiting pipeline component is added for the water discharge process. Its essence is: without affecting the operating state of the automobile water pump structure, the coolant can "self-circulate" through the flow-limiting pipeline component. In the process of coolant "self-circulation", the coolant in the water tank will not be "used" or a small amount of it will be "used". It is mainly to change the supply of coolant to the radiator in accordance with the heat dissipation requirements of the radiator;

[0018] 2. In combination with the above content, it should be explained that the essence of the "self-circulation" process is to utilize the liquid pressure generated by the coolant itself during the flow process. During the normal release of the coolant, the liquid pressure generated is relatively reduced; conversely, during the process of reducing the release amount of the coolant or even no release amount, the liquid pressure generated by the coolant is converted into mechanical movement of the sliding plug, specifically by changing the opening between the return pipe and the outlet pipe, thereby changing the supply of coolant to the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of an automobile water pump structure using an active current limiting temperature control structure proposed by the present invention;

[0021] Figure 2 This is a structural schematic diagram of a current limiting pipeline assembly in an automobile water pump structure adopting an active current limiting temperature control structure proposed by the present invention;

[0022] Figure 3 A cross-sectional view of a water outlet pipe in an automobile water pump structure adopting an active current limiting temperature control structure proposed by the present invention;

[0023] Figure 4The present invention proposes an automobile water pump structure using an active current limiting temperature control structure. Figure 3 A front view of

[0024] Figure 5 The present invention proposes an automobile water pump structure using an active current limiting temperature control structure. Figure 3 Split diagram of ;

[0025] Figure 6 A cross-sectional view of a water inlet pipe in an automobile water pump structure adopting an active current limiting temperature control structure proposed by the present invention;

[0026] Figure 7 The present invention provides a cross-sectional view of a limiting block in an automobile water pump structure adopting an active current limiting temperature control structure.

[0027] In the figure: 1. water storage tank; 2. return pipe; 3. water inlet pipe; 4. pump body; 5. water outlet pipe; 501. backflow chamber; 502. forward flow chamber; 6. valve body; 7. primary vertical pipe; 8. mounting sleeve; 9. ball sleeve; 10. secondary vertical pipe; 11. diverter block; 12. primary spring; 13. sliding plug block; 14. secondary spring; 15. flow blocking cone cap; 16. water conduit; 17. drain port; 18. electric push rod; 19. liquid level sensor; 20. impeller; 21. direction limiting block; 22. direction limiting groove; 23. pull bar. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: For automobile water pumps, the essence is that the high-speed rotating impeller drives the medium to flow. However, for the heat dissipation requirements of the radiator, the conventional means is to use a flow valve, a solenoid valve and other valve body structures to control the flow on the basis of maintaining the high-speed rotation of the impeller. This process will increase the workload of the impeller. It should also be noted that if the radiator only needs a low-flow coolant supply, but the automobile water pump is not prepared to provide a low-flow coolant, thus affecting the heat dissipation effect of the radiator, the following technical solutions are proposed:

[0030] Reference Figures 1 to 7In this embodiment, an automobile water pump structure adopting an active flow limiting temperature control structure comprises a pump body 4, a water storage tank 1 and a valve body 6. A water inlet pipe 3 and a water outlet pipe 5 are respectively installed at the water inlet end and the water outlet end of the pump body 4. One end of the water inlet pipe 3 extends into the water storage tank 1, and one end of the water outlet pipe 5 is installed on the valve body 6. A flow limiting pipeline component is arranged between the water inlet pipe 3 and the water outlet pipe 5.

[0031] The flow limiting pipeline assembly includes a return pipe 2, a diverter block 11, a water conduit 16 and a sliding plug block 13. One end of the return pipe 2 is connected to the outlet pipe 5, and a primary vertical pipe 7 is installed at the other end of the return pipe 2. The diverter block 11 is installed inside the outlet pipe 5 in a manner parallel to the length direction of the outlet pipe 5. A reflux bin 501 and a forward flow bin 502 are provided inside the outlet pipe 5 through the diverter block 11. The sliding plug block 13 is arranged in the reflux bin 501, and the sliding plug block 13 is slidably connected to the outlet pipe 5 and the diverter block 11. The setting position of the sliding plug block 13 corresponds to the position of one end of the return pipe 2. The primary vertical pipe 7 is installed on the water inlet pipe 3. The diverter block 11 is inclined at a side away from the water outlet end of the pump body 4, and the inclination direction of one end of the diverter block 11 points to the return pipe 2.

[0032] Working principle: The pump body 4 in the present invention is a conventional automobile water pump, and the water storage tank 1 is used to store the coolant, and the end of the water outlet pipe 5 is connected to the automobile radiator. Under normal conditions, the pump body 4 provides power to pump the coolant in the water storage tank 1 into the automobile radiator, and the flow rate / flow velocity of the coolant can be changed by the valve body 6. The valve body 6 is mainly a structure such as a regulating valve, and no further explanation is given in this part;

[0033] Combined with Figure 3 and Figure 4 Explanation: When the coolant enters the water outlet pipe 5, it is restricted by the structure and shape of the diverter block 11, and the coolant is mainly drawn out to the automobile radiator through the positive flow chamber 502. It can be understood that: Figure 4 In the embodiment, the coolant flows from left to right, and then a small amount of the coolant enters the reflux chamber 501. When the coolant is pumped into the automobile radiator in a normal state, because the coolant is "released" into the automobile radiator in time, the coolant does not generate a large liquid pressure in the water outlet pipe 5, and therefore does not generate a force on the sliding plug block 13. On the contrary, when the valve body 6 limits the supply of coolant to the automobile radiator, a large amount of coolant is "retained" inside the water outlet pipe 5, thereby generating a large liquid pressure. Under the action of the liquid pressure, the coolant directly acts on the sliding plug block 13, driving the sliding plug block 13 to move and thereby exposing the reflux pipe 2. Finally, a part of the coolant flows back from the reflux pipe 2 to the water inlet pipe 3. Figure 2 Generally speaking, the coolant will form a closed loop through the water inlet pipe 3-water outlet pipe 5-return pipe 2 and perform "self-circulation".

[0034] Embodiment 2: This embodiment is combined with the flow process of the coolant in Embodiment 1 to explain:

[0035] A water-passing conduit 16 is slidably installed in the sliding plug block 13 along the length direction parallel to the water outlet pipe 5. The water-passing conduit 16 is fixedly connected between the end corresponding to the water outlet end of the pump body 4 and the side of the diverter block 11 close to the water outlet end of the pump body 4. The end corresponding to the water-passing conduit 16 close to the water outlet end of the pump body 4 is open, and the other end of the water-passing conduit 16 is closed. A drain port 17 is provided at the position of the water-passing conical cap 15 corresponding to the choke cone cap 15. The end of the choke cone cap 15 close to the water outlet end of the pump body 4 is cylindrical, and the other end of the choke cone cap 15 is semicircular. The cross-section of the other end of the choke cone cap 15 is truncated. The water-passing conduit 16 is respectively installed with a primary spring 12 and a secondary spring 14 at the positions on both sides of the sliding plug block 13. The primary spring 12 and the secondary spring 14 are respectively installed on the diverter block 11 and the choke cone cap 15.

[0036] Solution Description: Combined Figure 4 and Figure 5 The following explanation is given for the overall structure, which is set to two states: normal flow and differential flow:

[0037] The normal flow state is used to indicate that the valve body 6 is in a fully open state, that is, the coolant enters the automobile radiator in a "completely unobstructed" manner. In this state, the coolant flows normally with the positive flow chamber 502 as a channel, but the coolant will also enter the backflow chamber 501 through the drain port 17 on the water conduit 16, and in this state, the flow direction of the coolant in the backflow chamber 501 is still from left to right, and the coolant in this position will also generate a thrust from left to right on the blocking cone cap 15, so as to ensure that the drain port 17 is always exposed. Under the action of the secondary spring 14, the blocking cone cap 15 stretches the secondary spring 14 to make the sliding plug 13 show a tendency to move to the right, but it will also directly stretch the primary spring 12. This process ensures that the sliding plug 13 always blocks the return pipe 2;

[0038] The differential flow state is used to indicate that there are differences in the opening of the valve body 6. If the operating power of the pump body 1 remains stable, it can be said that the amount of coolant output from the pump body 1 to the outlet pipe 5 is always stable. However, because there are differences in the amount of coolant released from the outlet pipe 5 to the car radiator, the amount of coolant retained in the outlet pipe 5 is greater than the amount of coolant replenished by the pump body 1 to the outlet pipe 5. Therefore, the coolant generates a certain value of liquid pressure inside the outlet pipe 5.

[0039] Combined with Figure 4Explanation: Because the liquid pressure generated by the coolant itself is difficult to release, and because there are only two sliding plugs 13 and blocking cone cap 15 with active power inside the water outlet pipe 5, in this state, the liquid pressure first generates a thrust from right to left on the blocking cone cap 15 to completely block the drain port 17, and continues to generate a thrust from right to left on the sliding plug block 13 to expose the return pipe 2, so that part of the coolant "returns" to the inside of the water inlet pipe 3.

[0040] When the differential flow state switches to the normal flow state, the sliding plug block 13 and the resistance cone cap 15 lose the liquid pressure from the coolant itself, and are reset under the action of the rebound force of the primary spring 12 and the secondary spring 14 themselves, returning to the normal flow state.

[0041] Embodiment 3: This embodiment explains the flow process of the coolant flowing back into the water inlet pipe:

[0042] A secondary vertical pipe 10 corresponding to the primary vertical pipe 7 is installed on the water inlet pipe 3. The primary vertical pipe 7 and the secondary vertical pipe 10 are arranged in sequence along the direction from the water inlet end of the pump body 4 to the water storage tank 1. A ball sleeve 9 is installed at the middle position of the water inlet pipe 3 corresponding to the primary vertical pipe 7 and the secondary vertical pipe 10. A liquid level sensor 19 and an electric push rod 18 are installed at the top positions of the primary vertical pipe 7 and the secondary vertical pipe 10 respectively. The probe position of the liquid level sensor 19 extends to the internal position of the primary vertical pipe 7. The transmission shaft of the electric push rod 18 penetrates into the secondary vertical pipe 10 and is installed with a piston. The piston is slidably connected to the inner wall of the secondary vertical pipe 10, an impeller 20 is arranged in the ball sleeve 9, a rotating shaft is installed in the impeller 20, and the impeller 20 is rotatably connected to the ball sleeve 9 through the rotating shaft, the setting direction of the rotating shaft is perpendicular to the setting direction of the water inlet pipe 3 along the horizontal direction, and one end of the rotating shaft extends to the outside of the ball sleeve 9 and is installed with a limiting block 21, a mounting sleeve 8 is installed at the position of the ball sleeve 9 corresponding to the limiting block 21, a shifting bar 23 is installed on the inner wall of the mounting sleeve 8, and a limiting groove 22 corresponding to the shifting bar 23 is opened on the outer wall of the limiting block 21.

[0043] Solution description: First of all, combined with the relevant contents of the second embodiment, it is explained that the essence of the flow-limiting pipeline assembly is to change the operating power of the pump body 4 while maintaining the coolant completely filled in the water inlet pipe 3 and the water outlet pipe 5. The minimum operating power of the pump body 4 needs to ensure that it can drive the coolant to flow at a low speed;

[0044] Combined with Figure 2 , Figure 6 and Figure 7To explain, the coolant flowing out of the water outlet pipe 5 first enters the primary vertical pipe 7, the purpose of which is: in the normal flow state, the coolant is only drawn out from the water storage tank 1, and the primary vertical pipe 7 and the secondary vertical pipe 10 cannot affect the flow direction of the coolant in the water inlet pipe 3, such as: in the normal flow state, the pneumatic push rod 18 drives the piston on it to move downward to reduce the internal volume of the secondary vertical pipe as much as possible. According to the principle of liquid level balance, if the liquid level height of the coolant in the secondary vertical pipe 10 is h, then the liquid level height of the coolant in the primary vertical pipe 10 is also h;

[0045] However, in this embodiment, the arrangement is mainly to cooperate with the cooling backflow process. When the coolant starts to backflow, it means that there is no need to extract the coolant from the water storage tank 1 or a small amount of coolant is extracted. In order to prevent the coolant in the primary vertical pipe 7 from flowing back to the water storage tank 1, the flow direction of the cold zone is limited by the impeller 20. For example, in a normal flow state, the coolant flows from the secondary vertical pipe 10 to the primary vertical pipe 7, and the impeller 20 can only rotate counterclockwise. For this, refer to Figure 7 , further restricting the structural shape of the strip 23, when the limiting block 21 rotates counterclockwise, the limiting groove 22 therein will lift the strip 23 upwards, so as not to interfere with the rotation process of the impeller 20, on the contrary, when the impeller 20 rotates clockwise, the strip 23 is stuck in the limiting groove 22 at a certain position to restrict the clockwise movement of the impeller 20;

[0046] It should be noted that when the coolant flows back into the primary vertical pipe 7, the liquid level sensor 19 can be used to detect the amount of coolant added to the primary vertical pipe 7, and the liquid level change per unit time in the primary vertical pipe 7 can be used to indirectly feedback the reverse flow rate in the current limiting pipeline assembly, and the electric push rod 18 actively changes the position of the piston in coordination with the liquid level change in the primary vertical pipe 7, so as to avoid the coolant from flowing back or flowing abnormally due to the pressure generated by the liquid level height difference when the normal flow state is restored, and it should be supplemented that the impeller 20 mainly plays a blocking role rather than a sealing role, so the first vertical pipe 7 and the second vertical pipe 10 are still connected, so that the electric push rod 18 can also be used to change the liquid level change in the second vertical pipe 10, and indirectly change the liquid level height in the second vertical pipe 7;

[0047] In combination with the above content, it is supplemented that: the overall structure depends critically on the flow-limiting associated components, and "self-circulation" is achieved by the liquid pressure generated by the coolant itself. The backflow volume in the "self-circulation" process can also be sensed by the liquid level sensor 19. In order to more finely control the amount of coolant replenished to the automobile radiator, it is possible to change the operating power of the pump body 1 itself, and through the principle of liquid level balance, actively interfere with the replenishment amount in the flow-limiting pipeline component by the change in the liquid level height in the secondary vertical pipe 18.

[0048] In summary: based on the operation mode of the conventional water pump structure, in order to meet the use requirements of the radiator in the car, without affecting the operation of the water pump structure, the coolant backflow is adopted to make the coolant "self-circulate" in the current limiting pipeline assembly, which is manifested as: the coolant is ensured to keep rotating through the water pump structure, but it is based on the coolant bulging out of the water pump structure, and the coolant in the water tank will not be "used" or a small amount of it is "used". Its essence is: utilizing the liquid pressure generated by the coolant release process during the coolant bulging process, and directly changing the coolant flow state with the pressure change in the coolant flow state, which can be directly understood as: the coolant flow state and the pressure change are mutually constrained and balanced, and are used to change the coolant supply to meet the heat dissipation requirements in the radiator.

[0049] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automobile water pump structure adopting an active current limiting temperature control structure, comprising a pump body (4), a water storage tank (1) and a valve body (6), characterized in that: A water inlet pipe (3) and a water outlet pipe (5) are respectively installed at the water inlet end and the water outlet end of the pump body (4); one end of the water inlet pipe (3) extends into the water storage tank (1); one end of the water outlet pipe (5) is installed on the valve body (6); and a limited flow pipeline component is provided between the water inlet pipe (3) and the water outlet pipe (5); The flow-limiting pipeline assembly comprises a return pipe (2), a diverter block (11), a water conduit (16) and a sliding plug block (13); one end of the return pipe (2) is connected to a water outlet pipe (5), and a primary vertical pipe (7) is installed at the other end of the return pipe (2); the diverter block (11) is installed inside the water outlet pipe (5) in a manner parallel to the length direction of the water outlet pipe (5); a reverse flow chamber (501) and a forward flow chamber (502) are arranged inside the water outlet pipe (5) through the diverter block (11); the sliding plug block (13) is arranged in the reverse flow chamber (501), and the sliding plug block (13) is slidably connected to the water outlet pipe (5) and the diverter block (11); the setting position of the sliding plug block (13) corresponds to the position of one end of the return pipe (2); and the primary vertical pipe (7) is installed on the water inlet pipe (3).

2. The automobile water pump structure adopting the active current limiting temperature control structure according to claim 1 is characterized in that: The diverter block (11) is arranged at an angle at a position away from the water outlet end of the pump body (4), and the inclination direction of one end of the diverter block (11) points to the return pipe (2).

3. The automobile water pump structure adopting the active current limiting temperature control structure according to claim 1 is characterized in that: A water conduit (16) is slidably mounted in the sliding plug block (13) in a direction parallel to the length of the water outlet pipe (5); the water conduit (16) is fixedly connected between an end close to the water outlet end of the pump body (4) and a side of the diverter block (11) close to the water outlet end of the pump body (4).

4. The automobile water pump structure using an active current limiting temperature control structure according to claim 3 is characterized in that: The water conduit (16) has an open end corresponding to the water outlet end of the pump body (4), and the other end of the water conduit (16) is closed. A water drain port (17) is provided at a position of the water conduit (16) corresponding to the flow-blocking cone cap (15).

5. The automobile water pump structure adopting the active current limiting temperature control structure according to claim 4 is characterized in that: One end of the flow-blocking cone cap (15) close to the water outlet end of the pump body (4) is cylindrical, and the other end of the flow-blocking cone cap (15) is semicircular, and the cross section of the other end of the flow-blocking cone cap (15) is truncated cone-shaped.

6. The automobile water pump structure adopting the active current limiting temperature control structure according to claim 1 is characterized in that: The water-passing conduit (16) is respectively provided with a primary spring (12) and a secondary spring (14) at positions corresponding to both sides of the sliding plug block (13); the primary spring (12) and the secondary spring (14) are respectively installed on the diverter block (11) and the flow-blocking cone cap (15).

7. The automobile water pump structure using an active current limiting temperature control structure according to claim 1, characterized in that: The water inlet pipe (3) is provided with a secondary vertical pipe (10) corresponding to the primary vertical pipe (7); the primary vertical pipe (7) and the secondary vertical pipe (10) are arranged in sequence along the direction from the water inlet end of the pump body (4) to the water storage tank (1); and a ball sleeve (9) is provided at a middle position of the water inlet pipe (3) corresponding to the primary vertical pipe (7) and the secondary vertical pipe (10).

8. The automobile water pump structure using an active current limiting temperature control structure according to claim 7, characterized in that: A liquid level sensor (19) and an electric push rod (18) are respectively installed at the top of the primary vertical pipe (7) and the secondary vertical pipe (10); the probe of the liquid level sensor (19) extends to the interior of the primary vertical pipe (7); the transmission shaft of the electric push rod (18) penetrates into the interior of the secondary vertical pipe (10) and is installed with a piston; the piston is slidably connected to the inner wall of the secondary vertical pipe (10).

9. The automobile water pump structure using an active current limiting temperature control structure according to claim 7, characterized in that: The ball sleeve (9) is provided with an impeller (20), a rotating shaft is installed in the impeller (20), and the impeller (20) is rotatably connected to the ball sleeve (9) via the rotating shaft, the setting direction of the rotating shaft is perpendicular to the setting direction of the water inlet pipe (3) along the horizontal direction, and one end of the rotating shaft extends to the outside of the ball sleeve (9) and is installed with a limiting block (21), the ball sleeve (9) is installed with a mounting sleeve (8) at a position corresponding to the limiting block (21), a shifting bar (23) is installed at an inner wall position of the mounting sleeve (8), and a limiting groove (22) corresponding to the shifting bar (23) is opened at an outer wall position of the limiting block (21).

Images