CN221531237U - Engine thermal management cooling valve actuator - Google Patents

Abstract

The utility model provides an engine thermal management cooling valve actuator, and belongs to the technical field of engine thermal management modules. The safety problem of the existing executor is solved. The engine thermal management cooling valve actuator comprises a bottom shell, a motor, a pressing sheet and a circuit board, wherein two ends of the pressing sheet are respectively and fixedly connected to the bottom shell, the pressing sheet is contacted with the outer side surface of the motor and presses the motor, one end of the pressing sheet is connected with a grounding piece, the pressing sheet and the grounding piece are made of metal materials, and the grounding piece is connected with a grounding point of the circuit board. The electric leakage risk can be avoided to this executor, has improved the security of using.

Description

Engine thermal management cooling valve actuator

Technical Field

The utility model belongs to the technical field of engine thermal management modules, and relates to an engine thermal management cooling valve actuator.

Background

The automobile is provided with an engine thermal management Module (THERMAL MANAGEMENT Module) for controlling the flow of the cooling liquid, and can cool the engine when the temperature of the engine is higher, so that the engine can be kept to work at a proper temperature. The engine thermal management module is also referred to as an engine thermal management cooling valve and its operating device is referred to as a cooling valve actuator.

The chinese patent literature publication proposes a cooling valve actuator [ bulletin No.: CN 210724394U, including lower cover, motor, installation shell fragment and motor support, be provided with the motor constant head tank on the lower cover, the motor setting is in the motor constant head tank, and the rear side of motor is provided with a cylinder bellying, and the cover is equipped with the turbine on the output shaft of motor. The installation shell fragment includes shell fragment body and fixed part, and the shell fragment body sets up perpendicularly, and the fixed part transversely fixes in the upper end of shell fragment body and sets up with the shell fragment body an organic whole. The installation shell fragment is last to be distributed to have a plurality of first deformation jack catch, and has seted up a round hole on the installation shell fragment, and the round hole lower extreme is provided with the second and warp the jack catch, and first deformation jack catch, second warp the jack catch and upwards set up to one side. The cylindrical protruding part of the motor is embedded into the round hole, and the second deformation claw is abutted against the lower part of the cylindrical protruding part to form a back-off structure. The installation shell fragment card is established at motor constant head tank rear portion, and the first deformation jack catch supports and leans on the lower cover lateral wall at motor constant head tank rear portion, forms the back-off structure, and the fixed part is covered under through a screw fixation, and the front end lock of motor is covered under with the motor support. However, the motor is not grounded, so that the electric leakage risk of the actuator exists.

Disclosure of utility model

The utility model aims to solve the problems in the prior art, provides an engine thermal management cooling valve actuator, and solves the technical problem of insufficient safety of the conventional actuator.

The aim of the utility model can be achieved by the following technical scheme:

The utility model provides an engine thermal management cooling valve executor, includes drain pan, motor, preforming and circuit board, the both ends of preforming are fixed connection respectively on the drain pan, its characterized in that, the preforming is contacted with the lateral surface of motor and is pushed down the motor, be connected with the grounding piece on the one end of preforming, preforming and grounding piece are made by metal material, the grounding point of grounding piece and circuit board is connected.

The motor is fixed on the bottom shell in the up-down direction by pressing the motor by the pressing sheet. Because the preforming is made by metal material, preforming and motor lateral surface contact, and the preforming is connected with the grounding piece, can pass through preforming and grounding piece ground connection with the motor like this and handle, draw forth by the power cord on the circuit board behind messenger's motor electric leakage's electric current through preforming and the grounding piece, avoided the electric leakage risk of executor, improved the security of executor.

The preforming is not only used for fixed motor, still realizes the earthing treatment to the motor through the lateral surface contact with the motor and connecting the grounding piece, and a thing is dual-purpose, has guaranteed the security that the motor used when making the convenient fixed stability of motor equipment.

In the engine thermal management cooling valve actuator, a boss is integrally arranged on the bottom shell, and one end of the grounding piece is tightly pressed between one end of the pressing piece and the boss. Therefore, the grounding piece can be fixed and stable, the motor is ensured to be in a grounding state, and the use safety of the actuator and the working stability of the motor are ensured.

In the engine thermal management cooling valve actuator, a circular positioning groove is formed in the upper surface of the boss, one end of the grounding piece is provided with a circular positioning part, and the positioning part is embedded into the positioning groove. The positioning groove and the positioning part have positioning function, so that the assembly of the grounding part is convenient, the position of the grounding part can be prevented from being shifted, the motor is in a grounding state, and the use safety of the actuator is ensured.

In the engine thermal management cooling valve actuator, the pressing sheet is fixed on the boss through the screw, and the rod part of the screw penetrates through the pressing sheet and the positioning part and is in threaded connection with the boss; or the pressing sheet is fixed on the bottom shell through a buckle structure. The pressing sheet and the grounding piece are fixed through the screw, so that the pressing sheet and the grounding piece are convenient to assemble and stable in contact. The preforming passes through buckle structure to be fixed on the drain pan, installs convenient and firm in connection.

In the engine thermal management cooling valve actuator, the circuit board is fixed on the bottom shell, and the boss is located between the circuit board and the motor. The circuit board is separated from the motor through the boss, so that installation interference between the motor and the circuit board is avoided, and electric faults caused by contact of other components of the circuit board and the motor are avoided, so that the actuator works stably.

In the engine thermal management cooling valve actuator, the circuit board is provided with a positioning hole, the bottom shell is provided with a positioning column, and the positioning column is inserted into the positioning hole. During assembly, the pressing sheet and the grounding piece are fixed on the bottom shell, then the circuit board is fixed on the bottom shell, and then the circuit board and the grounding piece are welded and fixed. The circuit board is positioned through the positioning column and the positioning hole, so that the grounding piece cannot be connected with the circuit board due to dislocation of the circuit board is prevented, and normal use of the grounding piece is ensured.

In the engine thermal management cooling valve actuator, the front positioning seat and the rear positioning seat are integrally arranged on the bottom shell, two ends of the motor are respectively supported on the front positioning seat and the rear positioning seat, and the boss is integrally connected with the rear positioning seat. The motor realizes the support installation at both ends through preceding positioning seat and back positioning seat, makes the motor installation stable. The boss is integrative with the back positioning seat and is continuous then can increase the structural strength of back positioning seat and boss, makes the motor fixed stable.

In the engine thermal management cooling valve actuator, the rear end face of the motor is provided with a convex rear supporting part, the upper surface of the rear positioning seat is provided with a rear supporting groove, and the rear supporting part is embedded into the rear supporting groove and is abutted against the bottom surface of the rear supporting groove.

When the motor is assembled, the motor is downwards placed into the bottom shell from top to bottom, the rear supporting part is embedded into the rear supporting groove through the notch of the rear supporting groove, the installation is convenient, the rear end of the motor is directly supported and positioned on the rear positioning seat through the rear supporting part and the rear supporting groove, the possibility of electric leakage or short circuit at the rear end of the motor can be reduced, and the use safety of the motor is ensured.

In the engine thermal management cooling valve actuator, the bottom shell is made of plastic, the circuit board is further connected with a conductive sheet, the conductive sheet and the bottom shell are integrally injection molded, one end of the conductive sheet is provided with a conductive terminal, the rear end of the motor is provided with a conductive pin, the upper surface of the rear positioning seat is provided with an avoidance groove, and the conductive pin passes through the avoidance groove and then is clamped with the conductive terminal.

The conducting strip and the bottom shell are integrally injection molded, and insulation can be carried out by utilizing the bottom shell, so that electric leakage is reduced. When the motor is installed, the motor is placed into the bottom shell from top to bottom, the conductive pins can be embedded into the avoidance grooves from the notches of the avoidance grooves and are clamped with the conductive terminals, and the motor is convenient to assemble. And conductive pins are arranged in the insulated rear positioning seat in a penetrating way, compared with the prior actuator in which two conductive terminals of the motor pass through the mounting elastic sheet made of metal, the risk of short circuit can be reduced, and the safety of the actuator is guaranteed.

In the engine thermal management cooling valve actuator, the front end face of the motor is provided with a convex front supporting part, the upper surface of the front positioning seat is provided with a front supporting groove, and the front supporting part is embedded into the front supporting groove and is abutted against the bottom surface of the front supporting groove.

When the motor is assembled, the motor is downwards placed into the bottom shell from top to bottom, the front supporting part is embedded into the front supporting groove through the notch of the front supporting groove, the installation is convenient, the front end of the motor is directly supported and positioned on the front positioning seat through the front supporting part and the front supporting groove, the possibility that the front end of the motor is subjected to electric leakage or short circuit can be reduced, and the use safety of the motor is ensured.

Compared with the prior art, the utility model has the following advantages:

The preforming is connected with the grounding piece with the motor lateral surface contact, and the one end of preforming, and the grounding piece is connected to the ground point of circuit board to realized the earthing treatment of motor, improved the security that the executor used. And the tabletting is dual-purpose, so that the motor is convenient to assemble, fix and stabilize, and the use safety of the motor is ensured.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present actuator.

Fig. 2 is a perspective view of the present actuator embodiment after the top cover is opened.

Fig. 3 is a perspective view of an embodiment of the present actuator after concealing the cap and gear assembly.

Fig. 4 is a perspective view of the motor connected to the circuit board in the first embodiment of the actuator.

Fig. 5 is a perspective view of a bottom case of the present actuator embodiment with a circuit board, conductive pads, and ground.

In the figure, 1, a bottom shell; 1a, a front positioning seat; 1a1, a front support groove; 1b, a rear positioning seat; 1b1, rear support slots; 1b2, avoiding grooves; 1c, a boss; 1c1, a positioning groove; 1d, positioning columns; 2. a top cover; 3. a motor; 3a, a front support part; 3b, a rear support part; 3c, conducting pins; 4. tabletting; 5. a circuit board; 5a, positioning holes; 6. a gear assembly; 7. a screw; 8. a grounding member; 8a, a positioning part; 9. a conductive sheet; 9a, conductive terminals.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Example 1

As shown in fig. 1 and 2, an engine thermal management cooling valve actuator comprises a bottom shell 1, a top cover 2, a motor 3, a pressing sheet 4, a circuit board 5 and a gear assembly 6, wherein the bottom shell 1 and the top cover 2 are fixed, a containing cavity is formed between the bottom shell 1 and the top cover 2, and the motor 3, the pressing sheet 4, the circuit board 5 and the gear assembly 6 are all installed in the containing cavity. The bottom shell 1 and the top cover 2 are made of plastic, have good insulativity and are convenient to mold. The bottom shell 1 is integrally provided with a front positioning seat 1a and a rear positioning seat 1b, the motor 3 is axially positioned between the front positioning seat 1a and the rear positioning seat 1b, and two ends of the motor 3 are respectively supported on the front positioning seat 1a and the rear positioning seat 1b. The rotating shaft of the motor 3 extends out of the front positioning seat 1a and is fixedly provided with a worm, the worm is connected with the gear assembly 6, the gear assembly 6 is connected with the valve rod of the cooling valve, and the motor 3 drives the valve rod to rotate through the worm and the gear assembly 6 during working, so that the flow of the cooling valve is regulated. The gear assembly 6 is of a conventional structure, and reference is made to patent documents CN214946717U or CN 210724394U.

As shown in fig. 2 and 3, the rear end surface of the motor 3 has a convex cylindrical rear support portion 3b, a rear support groove 1b1 is provided on the upper surface of the rear positioning seat 1b, and the rear support portion 3b is embedded in the rear support groove 1b1 and abuts against the bottom surface of the rear support groove 1b 1. The front end face of the motor 3 is provided with a convex cylindrical front supporting part 3a, the upper surface of the front positioning seat 1a is provided with a front supporting groove 1a1, and the front supporting part 3a is embedded into the front supporting groove 1a1 and is abutted against the bottom surface of the front supporting groove 1a 1. The preforming 4 is installed in the rear end department of motor 3, and preforming 4 is the reverse U-shaped, and preforming 4 suit is in the motor 3 outside and push down motor 3. The middle part of the pressing sheet 4 is provided with a downward concave abutting part, and the abutting part is contacted with the outer side surface of the rear end of the motor 3. Both ends of the pressing sheet 4 are respectively fixedly connected to the bottom shell 1, and both ends of the pressing sheet 4 are fixed to the bottom shell 1 through screws 7. A boss 1c is integrally arranged on the bottom shell 1, and the boss 1c is integrally connected with the rear positioning seat 1 b. The circuit board 5 is fixed on the bottom shell 1, and the boss 1c is positioned between the circuit board 5 and the motor 3. The end of the pressing sheet 4 close to the circuit board 5 is connected with a grounding piece 8, the grounding piece 8 is in a sheet shape or a linear shape, the pressing sheet 4 and the grounding piece 8 are both made of metal materials, and are generally made of copper sheets or steel sheets, or the grounding piece 8 is made of copper wires or aluminum wires. The grounding member 8 is also connected with the grounding point of the circuit board 5, one end of the grounding member 8 is pressed between one end of the pressing sheet 4 and the boss 1c, and the other end of the grounding member 8 is inserted into the grounding point of the circuit board 5 and fixed by welding. Referring to fig. 5, a circular positioning groove 1c1 is formed in the upper surface of the boss 1c, a positioning portion 8a in a circular ring shape is formed at one end of the grounding member 8, the positioning portion 8a is embedded into the positioning groove 1c1, and a rod portion of the screw 7 passes through the pressing piece 4 and the positioning portion 8a and is in threaded connection with the boss 1 c.

As shown in fig. 4 and 5, two conductive sheets 9 are connected to the circuit board 5, the two conductive sheets 9 are injection molded integrally with the bottom shell 1, one end of each conductive sheet 9 is provided with a conductive terminal 9a, the conductive terminal 9a is vertically arranged at the rear of the rear positioning seat 1b, a clamping groove is formed in the conductive terminal 9a, the notch of the clamping groove faces upwards, the other end of each conductive sheet 9 is inserted into the circuit board 5 and welded and fixed, and the two conductive sheets 9 are respectively connected to two poles of the output voltage of the circuit board 5. Two conductive pins 3c are arranged at the rear end of the motor 3, and the two conductive pins 3c are respectively positioned at two sides of the rear supporting part 3 b. Two avoidance grooves 1b2 are formed in the upper surface of the rear positioning seat 1b, the two avoidance grooves 1b2 are respectively located on two sides of the rear supporting groove 1b1, the two avoidance grooves 1b2 are in one-to-one correspondence with the two conductive pins 3c, and the conductive pins 3c penetrate through the corresponding avoidance grooves 1b2 and are then clamped with clamping grooves of the conductive terminals 9 a. The circuit board 5 is provided with a positioning hole 5a, the bottom shell 1 is provided with a positioning column 1d, and the positioning column 1d is inserted into the positioning hole 5 a. The positioning holes 5a are arc-shaped, and two positioning holes 5a are symmetrically arranged. The upper end of the positioning column 1d extends out of the positioning hole 5a, and the gear assembly 6 is located above the positioning column 1d, so that the circuit board 5 can be separated from the gear assembly 6 through the positioning column 1 d.

The motor 3 is supported and positioned on the bottom shell 1 through the front positioning seat 1a and the rear positioning seat 1b, and then is pressed and fixed through the pressing sheet 4, and the motor 3 is fixed and stable. The preforming 4 is contacted with the lateral surface of the motor 3, and one end of the preforming 4 is connected with a grounding piece 8, and the grounding piece 8 is connected to the grounding point of the circuit board 5, so that the grounding treatment of the motor 3 is realized, and the use safety of an actuator is improved. The tabletting 4 is dual-purpose, so that the motor 3 is convenient to assemble, fix and stabilize, and the use safety of the motor 3 is ensured.

Example two

The pressing sheet 4 is fixedly connected with the bottom shell 1 through a buckling structure, and other structures are the same as those of the first embodiment. The tablet 4 is based on an embodiment structure, and both ends of the tablet are bent downwards to form clamping feet, and the clamping structure comprises clamping blocks arranged on the clamping feet, clamping grooves are correspondingly formed in the bottom shell 1, and the clamping blocks are clamped into the corresponding clamping grooves.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The utility model provides an engine thermal management cooling valve executor, includes drain pan (1), motor (3), preforming (4) and circuit board (5), the both ends of preforming (4) are fixed connection respectively on drain pan (1), a serial communication port, preforming (4) contact with the lateral surface of motor (3) and push down motor (3), be connected with ground connection piece (8) on the one end of preforming (4), preforming (4) and ground connection piece (8) are made by metal material, ground connection piece (8) are connected with the ground connection point of circuit board (5).

2. Engine thermal management cooling valve actuator according to claim 1, characterized in that the bottom shell (1) is integrally provided with a boss (1 c), and one end of the grounding member (8) is pressed between one end of the pressing piece (4) and the boss (1 c).

3. The engine thermal management cooling valve actuator according to claim 2, wherein a circular positioning groove (1 c 1) is formed in the upper surface of the boss (1 c), one end of the grounding member (8) is provided with a positioning portion (8 a) in a circular ring shape, and the positioning portion (8 a) is embedded in the positioning groove (1 c 1).

4. An engine thermal management cooling valve actuator according to claim 3, wherein the presser plate (4) is fixed on the boss (1 c) by a screw (7), and the stem portion of the screw (7) is screwed with the boss (1 c) after passing through the presser plate (4) and the positioning portion (8 a); or the pressing piece (4) is fixed on the bottom shell (1) through a buckling structure.

5. Engine thermal management cooling valve actuator according to any of claims 2-4, characterized in that the circuit board (5) is fixed to the bottom shell (1), the boss (1 c) being located between the circuit board (5) and the electric machine (3).

6. The engine thermal management cooling valve actuator according to claim 5, wherein a positioning hole (5 a) is formed in the circuit board (5), a positioning column (1 d) is formed in the bottom shell (1), and the positioning column (1 d) is inserted into the positioning hole (5 a).

7. The engine thermal management cooling valve actuator according to any one of claims 2 to 4, wherein a front positioning seat (1 a) and a rear positioning seat (1 b) are integrally provided on the bottom shell (1), two ends of the motor (3) are respectively supported on the front positioning seat (1 a) and the rear positioning seat (1 b), and the boss (1 c) is integrally connected with the rear positioning seat (1 b).

8. The engine heat management cooling valve actuator according to claim 7, wherein the rear end face of the motor (3) has a convex rear support portion (3 b), a rear support groove (1 b 1) is provided on the upper surface of the rear positioning seat (1 b), and the rear support portion (3 b) is embedded in the rear support groove (1 b 1) and abuts against the bottom surface of the rear support groove (1 b 1).

9. The engine thermal management cooling valve actuator according to claim 8, wherein the bottom shell (1) is made of plastic, a conductive sheet (9) is further connected to the circuit board (5), the conductive sheet (9) and the bottom shell (1) are integrally injection molded, one end of the conductive sheet (9) is provided with a conductive terminal (9 a), the rear end of the motor (3) is provided with a conductive pin (3 c), the upper surface of the rear positioning seat (1 b) is provided with an avoidance groove (1 b 2), and the conductive pin (3 c) passes through the avoidance groove (1 b 2) and is then clamped with the conductive terminal (9 a).

10. The engine thermal management cooling valve actuator according to claim 7, wherein the front end surface of the motor (3) is provided with a convex front support portion (3 a), the upper surface of the front positioning seat (1 a) is provided with a front support groove (1 a 1), and the front support portion (3 a) is embedded into the front support groove (1 a 1) and abuts against the bottom surface of the front support groove (1 a 1).