CN218892411U - Fluid control assembly - Google Patents

Abstract

The application discloses a fluid control assembly, including runner plate and sensor, the runner plate includes installation department, a portion of sensor is located the installation cavity of installation department, the sensing element of sensor can perception the temperature and/or the pressure of fluid in the runner plate, the fluid control assembly includes spacing portion, spacing portion restriction the sensor with the circumference rotation between the runner plate; the body of the sensor comprises a first concave part, the mounting part comprises a second concave part, a part of the limiting part is positioned in a groove of the first concave part, and the other part of the limiting part is positioned in a groove of the second concave part; or, the limiting part and the body are integrally structured, and part of the limiting part is positioned in the groove of the second concave part; or, the limiting part and the mounting part are integrally structured, and part of the limiting part is positioned in the groove of the first concave part; the certainty of the circumferential relative position of the sensor and the flow channel plate can be improved.

Description

Fluid control assembly

Technical Field

The present disclosure relates to the field of thermal management, and more particularly, to a fluid control assembly.

Background

The heat management system of the new energy vehicle comprises a fluid control assembly, wherein the fluid control assembly comprises a control part, a runner plate assembly and a valve assembly, the runner plate assembly is provided with a heat exchanger, a sensor and other components, a runner in the heat exchanger is communicated with a runner of the runner plate, the sensor is used for collecting information such as temperature and pressure of media in the runner plate and transmitting the information to the control part, and the control part controls the valve assembly to act according to the information fed back by the sensor so as to control the communication of the runner in the runner plate or the flow of the circulating media.

When the sensor is connected with the circuit board of the electric control part, the relative determination of the circumferential positions of the sensor and the flow channel plate is required to be ensured, and the relative determination of the circumferential positions of the sensor and the flow channel plate is difficult to ensure in general threaded connection, so that the connection of the sensor and the circuit board is not facilitated.

Disclosure of Invention

It is an object of the present application to provide a fluid control assembly that improves the certainty of the circumferential relative position of a sensor and a flow field plate.

In order to solve the technical problems, the application provides a fluid control assembly, which comprises a flow channel plate and a sensor, wherein the flow channel plate comprises a mounting part, a part of the sensor is positioned in a mounting cavity of the mounting part, a sensing element of the sensor can sense the temperature and/or the pressure of fluid in the flow channel plate, and the fluid control assembly comprises a limiting part, and the limiting part limits the circumferential rotation between the sensor and the flow channel plate;

the body of the sensor comprises a first concave part, the mounting part comprises a second concave part, a part of the limiting part is positioned in a groove of the first concave part, and the other part of the limiting part is positioned in a groove of the second concave part;

or, the limiting part and the body are integrally structured, and part of the limiting part is positioned in the groove of the second concave part;

or, the limiting part and the mounting part are integrally structured, and part of the limiting part is positioned in the groove of the first concave part.

The application provides a fluid control assembly, fluid control assembly include spacing portion, and the circumference position between spacing portion fixed sensor and the runner board can improve the certainty of sensor and runner board circumference relative position.

Drawings

FIG. 1 is a schematic diagram of a fluid control assembly according to one embodiment of the present disclosure;

FIG. 2 is a schematic view of the connection structure of the flow field plate, heat exchanger and control section of FIG. 1;

FIG. 3 is a schematic view of a sensor mounting structure in accordance with an embodiment;

FIG. 3-1 is an exploded view of FIG. 3;

FIG. 4 is a schematic structural diagram of a housing of an electric control unit according to an embodiment;

fig. 5 is a schematic structural diagram of a circuit board of the electric control part in the embodiment;

FIG. 6 is a schematic cross-sectional view of the mounting structure of FIG. 3;

FIG. 7 is a schematic cross-sectional view of a sensor and a flow field plate in an embodiment;

FIG. 8 is a schematic diagram of the sensor of FIG. 3;

FIG. 9 is a schematic view of the flow field plate of FIG. 3;

FIG. 10 is a schematic diagram of a sensor in another embodiment;

FIG. 11 is a schematic view of a flow field plate in yet another embodiment;

fig. 12 is a schematic view of a sensor structure according to another embodiment.

Reference numerals illustrate:

a flow path plate 10, a mounting portion 11, a mounting chamber 110, a first mounting peripheral wall 111, a second mounting peripheral wall 112, a first mounting side wall 113, a second mounting side wall 114, a second recess 1121, a flow path 12, and an interface portion 15;

the sensor 21, the sensor element 21b, the body 210, the first peripheral wall 212, the first seal ring groove 2121, the second peripheral wall 213, the third peripheral wall 211, the first concave portion 2131, the first side wall 214, the second side wall 215, the third side wall 216, the lock nut 22, the riveting connection portion 23, the limiting portion 24, the first seal ring 25 and the second seal ring 26;

the electric control part 30, the shell 31, the accommodating cavity 310, the upper shell 311, the electric output interface 3111, the lower shell 312, the through hole 3121, the inner peripheral wall 31211, the avoidance groove 313, the reinforcing plate 314, the circuit board 32, the pin 320;

control unit 40, heat exchanger 50.

Detailed Description

In order to provide a better understanding of the present application, those skilled in the art will now make further details of the present application with reference to the drawings and detailed description.

Referring to fig. 1 to 3-1, fig. 1 is a schematic structural diagram of a fluid control assembly according to an embodiment of the present application; FIG. 2 is a schematic view of the connection structure of the flow field plate, heat exchanger and control section of FIG. 1; FIG. 3 is a schematic view of a sensor mounting structure in accordance with an embodiment; fig. 3-1 is an exploded view of fig. 3.

In this embodiment, the fluid control assembly includes a flow field plate 10, a sensor 21, a control portion 40, and a heat exchanger 50; the flow channel plate 10 has a flow channel 12, a refrigerant or a cooling liquid flows in the flow channel 12, a fluid control component such as a pump and a multi-way valve is generally integrated on the flow channel plate 10 on the cooling liquid side, and a control valve such as an electromagnetic valve and a throttle valve is generally integrated on the flow channel plate 10 on the refrigerant side; the heat exchanger 50 is used for exchanging heat with the medium flowing in the flow channel plate 10; the sensor 21 is used for collecting the characteristics of the medium flowing in the flow channel plate 10 and feeding back to the control part 40, and the control part 40 outputs control instructions to the pump or the valve according to the feedback information of the sensor 21 so as to control the flowing condition of the medium in the flow channel plate 10.

In a specific application, the control portion 40 may be integrated on the flow channel plate 10, or may be disposed separately from the flow channel plate 10, for example, when the fluid control assembly is applied to a vehicle, the control portion may be a part of a vehicle control portion.

In this embodiment, the flow channel plate 10 includes a mounting portion 11, a part of the sensor 21 is located in the mounting cavity 110 of the mounting portion 11, the sensor 21 includes a body 210, a sensor element 21b and a pin 320, the sensor element 21b of the sensor 21 can sense the temperature and/or pressure of the fluid in the flow channel plate 10, part of the sensor element 21b is fixed on the body 210, part of the sensor element 21b fixed on the body 210 is connected with the pin 320, and the pin 320 can transmit the signal detected by the sensor element 21b to the control portion 40.

Referring to fig. 4 to fig. 9 together, fig. 4 is a schematic structural diagram of a housing of the electric control unit in the embodiment; fig. 5 is a schematic structural diagram of a circuit board of the electric control part in the embodiment; FIG. 6 is a schematic cross-sectional view of the mounting structure of FIG. 3; FIG. 7 is a schematic cross-sectional view of a sensor and a flow field plate in an embodiment; FIG. 8 is a schematic diagram of the sensor of FIG. 3; FIG. 9 is a schematic view of the flow field plate of FIG. 3; it will be appreciated that the flow field plates shown in figures 6, 7 and 9 are only a portion of the flow field plate of figure 1.

The fluid control assembly further comprises an electric control part 30, the shell 31 of the electric control part 30 is provided with a containing cavity 310, the other part of the sensor 21 is located in the containing cavity 310, the electric control part 30 comprises a circuit board 32, the sensor 21 comprises a contact pin 320, the contact pin 320 is electrically connected with the circuit board 32, the circuit board 32 is electrically connected with the control part 40, in this way, the circuit board 32 can process signals of the sensor 21 into digital signals, and the digital signals are communicated and transmitted to the outside through a communication module, so that the control part 40 can read the signals of the sensor 21 conveniently.

The sensor 21 of the fluid control assembly is provided in plurality; as shown in fig. 2, the flow field plate 10 is provided with a plurality of mounting portions 11; as shown in fig. 4, the housing 31 of the electronic control part 30 is provided with a plurality of through holes 3121, the accommodating chamber 310 includes a plurality of through holes 3121, and a portion of one sensor 21 is located in one through hole 3121, it being understood that the mounting part 11 and the through hole 3121 are in one-to-one correspondence.

In a specific application, the housing 31 includes an upper shell 311 and a lower shell 312, the lower shell 312 is relatively close to the runner plate 10, the upper shell 311 is relatively far away from the runner plate 10, the through hole 3121 is specifically disposed on the lower shell 312, the sensor 21 is sealed with the through hole 3121, and specifically, a first sealing ring 25 is disposed between the sensor 21 and an inner peripheral wall 31211 of the through hole 3121, and radial sealing between the sensor 21 and the through hole 3121 is achieved through the first sealing ring 25, so as to ensure that a protection level of a connection part between the lower shell 312 and the sensor 21 meets IP67.

Specifically, the pins 320 of all the sensors 21 of the fluid control assembly may be connected to the circuit board 32, integrated into a signal terminal on the circuit board 32, and an electrical output interface 3111 corresponding to the signal terminal is provided on the housing 31, that is, all the sensors 21 are electrically connected to the control unit 40 through the same electrical output interface 3111, so that the electrical interfaces can be effectively reduced, and the electrical connection can be simplified. It will be appreciated that the electrical connection between the sensor 21 and the control unit 40 is achieved by the circuit board 32, and that only one electrical output interface 3111 may be provided regardless of the number of sensors 21.

In a specific application, the installation positions of the plurality of sensors 21 on the flow channel plate 10 are scattered, the corresponding housing 31 is larger in external dimension when the plurality of sensors 21 are to be contained in the corresponding housing 31, the flow channel plate 10 is provided with the interface portion 15, and the interface portion 15 is connected with a heat pipe element, for example, in this embodiment, part of the interface portion 15 of the flow channel plate 10 is connected with the heat exchanger 50, and part of the interface portion 15 or part of the heat pipe element is located between any two installation portions 11, so that the external dimension of the housing 31 is limited by the structural characteristics of the flow channel plate 10. In this embodiment, the electronic control unit 30 has the avoidance groove 313, the avoidance groove 313 is specifically disposed on the housing 31, the avoidance groove 313 penetrates through the electronic control unit 30, at least part of the interface unit 15 or at least part of the thermal management element is located in the avoidance groove 313, and the specific shape and position of the avoidance groove 313 may be set as required, which is only illustrated in the figure.

In particular applications, the design of the lower shell 312 of the housing 31 should be minimized to avoid the fluid control components or other interface components on the flow field plate 10, which may result in weaker strength of the lower shell 312 in a partial region, so that a reinforcing plate 314 may be disposed at a non-interfering portion of the lower shell 312 to enhance the strength of the lower shell 312. As shown in the embodiment, the size of the avoidance groove 313 provided for avoiding the heat exchanger 50 is large, so that the strength of the housing 31 is obviously insufficient, therefore, a reinforcing plate 314 is provided on one side of the avoidance groove 313, and the wall forming the avoidance groove 313 includes a part of the wall of the lower housing 312 and a part of the side wall of the reinforcing plate 314. Of course, the upper case 311 may be provided with a reinforcing plate in a region of weak strength according to its structural design.

For ease of assembly, the receiving cavity 310 includes a housing cavity between the upper and lower shells 311 and 312, in which the circuit board 32 is located, and the circuit board 32 may be relatively fixed to the housing 31 by fasteners such as screws.

To ensure the reliability of the electrical connection between the sensor 21 and the circuit board 32, the housing 31 and the flow channel plate 10 may be connected in a limited manner or fixedly, so as to avoid the positional deviation of the circuit board 32. The fixed connection mode can be realized by clamping or screws and the like.

In this embodiment, the fluid control assembly includes a limiting portion 24, and the limiting portion 24 can limit circumferential rotation between the sensor 21 and the flow field plate 10.

The body 210 of the sensor 21 includes a first recess 2131, the mounting portion 11 includes a second recess 1121, a portion of the stopper 24 is located in a groove of the first recess 2131, and another portion of the stopper 24 is located in a groove of the second recess 1121; alternatively, the limiting portion 24 and the body 210 are integrally formed, and a part of the limiting portion 24 is located in the groove of the second recess 1121; alternatively, the stopper 24 and the mounting portion 11 are integrally formed, and a part of the stopper 24 is located in the groove of the first recess 2131.

As described above, the fluid control assembly provided in this embodiment fixes the circumferential positions of the sensor 21 and the flow channel plate 10 by the limiting portion 24, so that the sensor 21 is connected with the circuit board 32 of the electronic control portion 30.

In the present embodiment, the body 210 of the sensor 21 includes a first peripheral wall 212 and a second peripheral wall 213; the mounting portion 11 includes a first mounting peripheral wall 111 and a second mounting peripheral wall 112, the first peripheral wall 212 is in sealing connection with the first mounting peripheral wall 111, and the second peripheral wall 213 is in circumferential limit connection with the second mounting peripheral wall 112.

In a specific application, the first peripheral wall 212 includes a first seal ring groove 2121, the first seal ring groove 2121 is recessed radially from the first peripheral wall 212 along the circumferential direction, the second seal ring 26 can be installed in the first seal ring groove 2121, and radial sealing between the sensor 21 and the flow channel plate 10 is achieved through the second seal ring 26, so that medium flowing in the flow channel plate 10 is ensured not to leak.

In a specific application, the first recess 2131 is partially radially recessed from the second peripheral wall 213, the second recess 1121 is partially radially recessed from the second mounting peripheral wall 112, and the limiting portion 24 may be a pin. After the body 210 of the sensor 21 is fitted to the mounting portion 11, the first recess 2131 of the second peripheral wall 213 and the second recess 1121 of the second mounting peripheral wall 112 are positioned in correspondence, and the first recess 2131 and the second recess 1121 form a structure for mounting a pin, and a part of the pin is positioned in the groove of the first recess 2131 and the other part is positioned in the groove of the second recess 1121.

In other embodiments, the first recess 2131 is still partially recessed radially from the second peripheral wall 213, the limiting portion 24 may be integrally formed with the mounting portion 11, specifically, the limiting portion 24 is partially protruding radially from the second mounting peripheral wall 112, and after the body 210 of the sensor 21 is mated with the mounting portion 11, a portion of the limiting portion 24 is located in the groove of the first recess 2131.

In other embodiments, the second recess 1121 is still partially recessed radially from the second mounting peripheral wall 112, the limiting portion 24 may be integrally formed with the body 210, specifically, the limiting portion 24 is partially protruding radially from the second peripheral wall 213, and after the body 210 of the sensor 21 is mated with the mounting portion 11, a portion of the limiting portion 24 is located in the groove of the second recess 1121.

In the present embodiment, the body 210 of the sensor 21 includes a third peripheral wall 211, and the radial dimension of the third peripheral wall 211 is smaller than the radial dimension of the first peripheral wall 212; the fluid control assembly further includes a lock nut 22, an inner peripheral wall of the lock nut 22 being in clearance fit with the third peripheral wall 211, and an outer peripheral wall of the lock nut 22 being threadedly coupled with the second mounting peripheral wall 112.

In particular, when the sensor 21 is mounted, a portion of the third peripheral wall 211 is positioned in the through hole 3121 of the housing 31, and the first seal 25 is positioned between the inner peripheral walls 31211 of the third peripheral wall 211.

Specifically, the body 210 of the sensor 21 further includes a first side wall 214 and a second side wall 215, the mounting portion 11 includes a first mounting side wall 113, at least a portion of the side wall of the lock nut 22 abuts against the first side wall 214, and at least a portion of the second side wall 215 abuts against the first mounting side wall 113.

Specifically, the body 210 of the sensor 21 further includes a third sidewall 216, and the mounting portion 11 includes a second mounting sidewall 114, and at least a portion of the third sidewall 216 abuts the second mounting sidewall 114.

In other embodiments, the outer peripheral wall of the lock nut 22 may also be threadedly coupled with the first mounting peripheral wall 111.

Referring to fig. 10 together, fig. 10 is a schematic diagram of a sensor according to another embodiment.

In the solution shown in fig. 10, the body 210 of the sensor 21 may further include a rivet connection portion 23, where the radial dimension of the rivet connection portion 23 is greater than the radial dimension of the third peripheral wall 211, and/or the radial dimension of the rivet connection portion 23 is smaller than the radial dimension of the second peripheral wall 213, and the inner peripheral wall of the lock nut 22 is in clearance fit with the outer peripheral wall of the rivet connection portion 23.

Referring to fig. 11 and fig. 12 together, fig. 11 is a schematic structural view of a flow channel plate according to another embodiment; fig. 12 is a schematic view of a sensor structure according to another embodiment.

In the solutions shown in fig. 11 and 12, the body 210 of the sensor 21 includes a first peripheral wall 212, and the mounting portion 11 of the flow channel plate 10 includes a first mounting peripheral wall 111, where the first peripheral wall 212 is in sealing connection with the first mounting peripheral wall 111 and in circumferential limit connection.

The limiting portion 24 protrudes radially from the first mounting peripheral wall 111 locally, the first concave portion 2131 protrudes radially from the first peripheral wall 212 locally, the first peripheral wall 212 includes a first seal ring groove portion 2121, the first seal ring groove portion 2121 protrudes radially from the first peripheral wall 212 entirely in the circumferential direction, the first seal ring groove portion 2121 is far away from the sensor element 21b than the first concave portion 2131, wherein a second seal ring 26 is mounted in the first seal ring groove portion 2121, and radial sealing between the sensor 21 and the mounting portion 11 of the flow channel plate 10 is achieved by the second seal ring 26 in a similar manner to the above-described sealing.

In the above embodiments, the number of the limiting portions 24 of the fluid control assembly may be set to be plural, the plurality of limiting portions 24 may be unevenly distributed along the circumferential direction of the body 210 of the sensor 21, or the plurality of limiting portions 24 may be unevenly distributed along the circumferential direction of the mounting portion 11, so that the mounting misalignment of the sensor 21 may be prevented, and the accurate mounting position of the sensor 21 may be ensured.

A fluid control assembly provided herein is described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims (10)

1. A fluid control assembly comprising a flow channel plate (10) and a sensor (21), the flow channel plate (10) comprising a mounting portion (11), a portion of the sensor (21) being located in a mounting cavity (110) of the mounting portion (11), a sensor element (21 b) of the sensor (21) being capable of sensing the temperature and/or pressure of a fluid within the flow channel plate (10), the fluid control assembly comprising a limit portion (24), the limit portion (24) limiting circumferential rotation between the sensor (21) and the flow channel plate (10);

the body (210) of the sensor (21) comprises a first concave part (2131), the mounting part (11) comprises a second concave part (1121), part of the limiting part (24) is positioned in a groove of the first concave part (2131), and the other part of the limiting part (24) is positioned in a groove of the second concave part (1121);

or, the limit part (24) and the body (210) are integrally structured, and part of the limit part (24) is positioned in the groove of the second concave part (1121);

or, the limit part (24) and the mounting part (11) are integrally formed, and part of the limit part (24) is positioned in the groove of the first concave part (2131).

2. The fluid control assembly of claim 1, wherein the body (210) comprises a first peripheral wall (212), the mounting portion (11) comprises a first mounting peripheral wall (111), the first peripheral wall (212) is in sealing connection with the first mounting peripheral wall (111) and in circumferential spacing connection;

the limiting part (24) protrudes from the first mounting peripheral wall (111) in a local radial direction, the first concave part (2131) is recessed from the first peripheral wall (212) in a local radial direction, the first peripheral wall (212) comprises a first sealing ring groove part (2121), the first sealing ring groove part (2121) is recessed from the first peripheral wall (212) in a whole radial direction along the circumferential direction, and the first sealing ring groove part (2121) is far away from the sensing element (21 b) compared with the first concave part (2131).

3. The fluid control assembly of claim 1, wherein the body (210) includes a first peripheral wall (212) and a second peripheral wall (213), the mounting portion (11) includes a first mounting peripheral wall (111) and a second mounting peripheral wall (112), the first peripheral wall (212) is in sealing connection with the first mounting peripheral wall (111), and the second peripheral wall (213) is in circumferential spacing connection with the second mounting peripheral wall (112).

4. A fluid control assembly according to claim 3, wherein the first recess (2131) is partially radially recessed from the second peripheral wall (213), the second recess (1121) is partially radially recessed from the second mounting peripheral wall (112), and the stop (24) is a pin.

5. A fluid control assembly according to claim 3, wherein the first recess (2131) is partially radially recessed from the second peripheral wall (213), and the stop (24) is partially radially raised from the second mounting peripheral wall (112);

or, the second recess (1121) is partially radially recessed from the second mounting peripheral wall (112), and the stopper portion (24) is partially radially protruding from the second peripheral wall (213).

6. The fluid control assembly of claim 2, wherein the body (210) comprises a third peripheral wall (211), the third peripheral wall (211) having a radial dimension that is smaller than a radial dimension of the first peripheral wall (212), the fluid control assembly comprising a lock nut (22), an inner peripheral wall of the lock nut (22) being in clearance fit with the third peripheral wall (211), an outer peripheral wall of the lock nut (22) being in threaded connection with the first mounting peripheral wall (111);

the body (210) further comprises a first side wall (214) and a second side wall (215), the mounting portion (11) comprises a first mounting side wall (113), at least part of the side walls of the lock nut (22) are abutted with the first side wall (214), and at least part of the second side wall (215) is abutted with the first mounting side wall (113).

7. A fluid control assembly according to claim 3, characterized in that the body (210) comprises a third peripheral wall (211), the second peripheral wall (213) having a radial dimension greater than the first peripheral wall (212), the third peripheral wall (211) having a radial dimension less than the radial dimension of the second peripheral wall (213), the fluid control assembly comprising a lock nut (22), the inner peripheral wall of the lock nut (22) being in clearance fit with the third peripheral wall (211), the lock nut (22) outer peripheral wall being in threaded connection with the second mounting peripheral wall (112);

the body (210) further comprises a first side wall (214) and a third side wall (216), the mounting portion (11) comprises a second mounting side wall (114), at least part of the side walls of the lock nut (22) are abutted with the first side wall (214), and at least part of the third side wall (216) is abutted with the second mounting side wall (114).

8. The fluid control assembly of claim 6, wherein the body (210) includes a swage connection (23), a radial dimension of the swage connection (23) being greater than a radial dimension of the third peripheral wall (211), a radial dimension of the swage connection (23) being less than a radial dimension of the first peripheral wall (212), or a radial dimension of the swage connection (23) being less than a radial dimension of the second peripheral wall (213) of the body (210), an inner peripheral wall of the lock nut (22) being in clearance fit with an outer peripheral wall of the swage connection (23).

9. The fluid control assembly of claim 7, wherein the body (210) includes a swage connection (23), a radial dimension of the swage connection (23) being greater than a radial dimension of the third peripheral wall (211), a radial dimension of the swage connection (23) being less than a radial dimension of the first peripheral wall (212), or a radial dimension of the swage connection (23) being less than a radial dimension of the second peripheral wall (213) of the body (210), an inner peripheral wall of the lock nut (22) being in clearance fit with an outer peripheral wall of the swage connection (23).

10. The fluid control assembly according to any one of claims 1-9, wherein the number of the limiting portions (24) is plural, and wherein the plurality of limiting portions (24) are unevenly distributed along the circumferential direction of the body (210) or the plurality of limiting portions (24) are unevenly distributed along the circumferential direction of the mounting portion (11).

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