CN111561466A - Vehicle-mounted cooling fan control module - Google Patents

Abstract

The invention discloses a vehicle-mounted cooling fan control module, which comprises a bottom shell, an upper cover, a power supply/signal terminal assembly and a PCB (printed circuit board); the front wall of the bottom shell is provided with a through hole; a positioning part capable of positioning the power supply/signal terminal assembly is arranged in the bottom shell; the power/signal terminal assembly is matched in the positioning part of the bottom shell; in the bottom shell, a stop block for preventing the power/signal terminal assembly from retreating is arranged at the rear side corresponding to the adapting position of the power/signal terminal assembly, and the upper end of the stop block is an inclined surface. The structure of the invention can prevent the backward phenomenon of the power/signal terminal component in the assembling process or the plugging and unplugging use process, and ensure that the plug-in terminal of the power/signal terminal component extending out of the bottom shell is accurately assembled in the through hole of the bottom shell; and the flat power supply/signal terminal assembly can be firmly fixed on the basis of ensuring the compactness or miniaturization of the whole product.

Description

A vehicle cooling fan control module

technical field

The present invention relates to the technical field of vehicle-mounted equipment, in particular to a vehicle-mounted cooling fan control module.

Background technique

The vehicle-mounted cooling fan control module belongs to a vehicle-mounted device, which is installed on the vehicle and used to control the vehicle-mounted cooling fan motor. The vehicle cooling fan control module usually includes a box body composed of an upper cover and a bottom shell. A PCB board is installed in the inner cavity of the box body surrounded by the upper cover and the bottom shell, and a control circuit is installed on the PCB board. The control signal on the vehicle realizes the control of the on-board cooling fan. This vehicle cooling fan control module is generally provided with a power/signal terminal assembly, wherein the power terminal assembly is used to transmit power signals, and the signal terminal assembly is used to transmit control signals. One end of the power/signal terminal assembly It needs to be connected to the PCB board inside the box, and the other end of the power/signal terminal assembly needs to extend out of the box to connect with the vehicle power supply or the vehicle control signal. There are two main ways to fix the power/signal terminal assembly of the vehicle-mounted cooling fan control module in the prior art. One is to realize the cooperation between the power/signal terminal assembly and the bottom case through the cooperation of the protrusion/bump and the groove. For the fixation of the power/signal terminal assembly, for example, a groove is provided on the side of the power/signal terminal assembly, and a protrusion is provided at the corresponding position of the bottom case, and the power/signal terminal assembly is fixed by the cooperation of the protrusion and the groove; One is to set a positioning post on the power/signal terminal assembly, and the power/signal terminal assembly is fixed through the cooperation between the positioning post of the power/signal terminal assembly and the PCB board. The fixing method of the power supply/signal terminal assembly of the vehicle-mounted cooling fan control module in the prior art mainly has the following drawbacks:

First, the power/signal terminal assembly will retreat during the assembly process or during plugging and unplugging. Since the power/signal terminal assembly and the bottom case or PCB are fixed at the side, it is easy to generate power/signal terminals. There is a deviation in the assembly of the components or the disadvantages of disengagement during use.

Second, since the other end of the power/signal terminal assembly needs to extend out of the box to be connected to the vehicle power supply or the control signal of the vehicle, it is necessary to accurately assemble the other end of the power/signal terminal assembly to the bottom case during assembly. However, since the fixed position of the power/signal terminal assembly and the bottom case or the PCB board is on the side, it is not convenient for the accurate assembly of the power/signal terminal assembly.

Third, in order to achieve the compactness or miniaturization of the overall product, and at the same time because of the limitation of the assembly space of the power/signal terminal assembly (there are usually electronic components next to the power/signal terminal assembly to cause assembly interference), it is necessary to combine the power/signal The terminal assembly is made into a flat shape, and this flat power/signal terminal assembly adopts the above-mentioned fixing method, which is easy to cause the disadvantage of unstable fixation of the power supply/signal terminal assembly.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a vehicle-mounted cooling fan control module. Through structural improvement, on the one hand, it is possible to prevent the power/signal terminal assembly from falling back during the assembling process or the plugging and unplugging process. , and ensure that the plug-in terminals of the power/signal terminal assembly projecting out of the bottom case are accurately assembled in the through holes of the bottom case; on the other hand, on the basis of ensuring the compactness or miniaturization of the overall product, the flat The power/signal terminal assembly is securely fastened.

The technical solution adopted by the present invention to solve the technical problem is as follows: a vehicle-mounted cooling fan control module, including a bottom case, an upper cover, a power/signal terminal assembly and a PCB board; the upper end of the power/signal terminal assembly is provided with an upward convex The front end of the power/signal terminal assembly is provided with a second terminal that protrudes forward, and the power/signal terminal assembly is connected to the PCB board through the first terminal; The front wall is provided with a through hole for allowing the second terminal of the front end of the power/signal terminal assembly to protrude out of the bottom case, and the bottom case is provided with a left-right direction for positioning the power/signal terminal assembly. Positioning part; the power/signal terminal assembly is fitted in the positioning part of the bottom case and the front end of the power/signal terminal assembly is pressed against the inner side of the front wall of the bottom case to allow the power/signal terminal assembly The second terminal of the front end of the signal terminal assembly protrudes from the through hole of the bottom case; in the bottom case, on the rear side corresponding to the fitting position of the power/signal terminal assembly, there is also provided for preventing the power/signal The backstop of the terminal assembly, and the upper end of the stopper is inclined to facilitate the installation of the power/signal terminal assembly.

The inclined surface of the stop block is gradually reduced toward the direction of the power/signal terminal assembly.

The lowest point of the inclined surface of the stopper is slightly higher than the bottom end surface of the power/signal terminal assembly after the assembly is in place.

The positioning part includes a first groove provided on the bottom wall of the bottom case; the lower part of the power/signal terminal assembly is inserted into the first groove, and the bottom end surface of the power/signal terminal assembly is inserted into the first groove. be in contact with the groove bottom of the first groove.

The bottom wall of the bottom case is provided with a first convex block, and the first groove is provided in the first convex block.

The groove bottom of the first groove in the first bump is also provided with a slot, the bottom end of the power/signal terminal assembly is provided with a protrusion downward, and the power/signal terminal assembly is adapted to the In the first groove, the protrusion of the power/signal terminal assembly is clamped in the groove of the first groove.

The positioning part further includes a second bump abutting on the inner side of the front wall of the bottom case, the second bump abuts against the front end of the power/signal terminal assembly, and the second bump is provided. There is a second groove through which the second terminal of the front end of the power/signal terminal assembly passes.

The power/signal terminal assembly is composed of two or more L-shaped conductive metal sheets and an insulating plastic body that is mutually insulated by injection molding the two or more L-shaped conductive metal sheets, and the insulating plastic The body is flat, and the insulating plastic body is adapted to the first groove in thickness; the part of the L-shaped side of the L-shaped conductive metal sheet protruding from the insulating plastic body constitutes the first terminal and the part of the other side of the L-shaped conductive metal sheet extending out of the insulating plastic body constitutes the second terminal.

In the outer side of the front wall of the bottom case, a surrounding wall surrounding the second terminal of the power/signal terminal assembly is further provided at a position corresponding to the through hole.

The bottom case is also provided with a plurality of protruding posts, and the PCB board is placed on the protruding posts.

Compared with the prior art, the beneficial effects of the present invention are:

1. The present invention adopts the positioning part in the bottom case that can position the power/signal terminal assembly in the left-right direction; and the power supply/signal terminal assembly is fitted in the positioning part of the bottom case and makes all The front end of the power/signal terminal assembly abuts on the inner side of the front wall of the bottom case so that the second terminal of the front end of the power/signal terminal assembly protrudes out of the through hole of the bottom case; Inside the shell, on the rear side corresponding to the fitting position of the power/signal terminal assembly, there is also a stop block for preventing the power/signal terminal assembly from retreating, and the upper end of the stop block is inclined to facilitate the power/signal The terminal assembly is installed. In this structure of the present invention, by setting a stopper on the rear side of the power/signal terminal assembly, the backward phenomenon of the power/signal terminal assembly can be prevented during the assembly process or during plugging and unplugging; The positioning part is provided to ensure that the plug terminals of the power/signal terminal assembly extending out of the bottom case can be accurately assembled in the through holes of the bottom case; the front and rear of the power/signal terminal assembly are aligned with the stopper and the front wall of the bottom case. To limit the position, the left and right of the power/signal terminal assembly are limited by the positioning part, so as to realize the fixation of the power/signal terminal assembly in the bottom case; by setting the upper end of the stopper as a slope, it can be used to assemble the power/signal The guide rail function when the terminal assembly is used.

2. In the present invention, the first groove of the positioning portion is arranged in the first bump on the bottom wall of the bottom case, and the second groove of the positioning portion is arranged on the inner side of the front wall of the bottom case. At the second bump, the first bump and the second bump can be used to form a stable support for the flat power/signal terminal assembly, and at the same time, the first bump, the second bump and the stop block can be used to Enhance the strength of the bottom case.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, a vehicle-mounted cooling fan control module of the present invention is not limited to the embodiments.

Description of drawings

1 is a front view of an embodiment of the present invention;

Fig. 2 is the structural exploded schematic diagram of the embodiment of the present invention;

Figure 3 is a schematic exploded view of the structure of the embodiment of the present invention (rotated by an angle);

Figure 4 is a schematic exploded view of the structure of the embodiment of the present invention (bottom up);

5 is a schematic diagram of a power/signal terminal assembly to be installed into a bottom case according to an embodiment of the present invention;

6 is a schematic diagram of the power/signal terminal assembly to be installed in the bottom case according to the embodiment of the present invention (rotated at an angle);

7 is a schematic view of the power/signal terminal assembly of the embodiment of the present invention having been installed in the bottom case;

8 is a schematic diagram of the power/signal terminal assembly of the embodiment of the present invention having been installed in the bottom case and to be installed in the PCB board;

FIG. 9 is a schematic diagram of the PCB board being loaded into the bottom case according to the embodiment of the present invention.

Detailed ways

Example

1 to 9, a vehicle-mounted cooling fan control module of the present invention includes a bottom case 2, an upper cover 1, a power/signal terminal assembly 3 and a PCB board 4; the upper end of the power/signal terminal assembly 3 There is a first terminal 31 protruding upward, the front end of the power/signal terminal assembly is provided with a second terminal 32 protruding forward, and the power/signal terminal assembly 3 communicates with the The PCB board 4 is connected; the front wall of the bottom case 2 is provided with a through hole 21 that allows the second terminal 32 of the front end of the power/signal terminal assembly 3 to extend out of the bottom case, and the bottom case 2 is provided with a A positioning portion for positioning the power/signal terminal assembly 3 in the left-right direction; the power/signal terminal assembly 3 is fitted in the positioning portion of the bottom case 2 and makes the front end of the power/signal terminal assembly 3 The second terminal 32 of the front end of the power/signal terminal assembly 3 protrudes from the through hole 21 of the bottom case; On the rear side of the adapting position of the power/signal terminal assembly, there is also a stop block 23 for preventing the power/signal terminal assembly 3 from retreating, and the upper end of the stop block 22 is an inclined surface 221, so as to facilitate the power/signal terminal assembly 3 Component 3 is loaded.

In this embodiment, the inclined surface 221 of the stopper block 22 gradually decreases toward the direction of the power/signal terminal assembly 3 .

In this embodiment, the lowest point 222 of the inclined surface 221 of the stopper block 22 is slightly higher than the bottom end surface 33 after the power/signal terminal assembly 3 is assembled in place.

In this embodiment, the positioning portion includes a first groove 23 provided on the bottom wall of the bottom case 2; the lower part of the power/signal terminal assembly 3 is inserted into the first groove 23, so The bottom end surface 33 of the power/signal terminal assembly 3 is in contact with the groove bottom 231 of the first groove 23 .

In this embodiment, the bottom wall of the bottom case 2 is provided with a first protrusion 24 , and the first groove 23 is provided in the first protrusion 24 .

The groove bottom of the first groove in the first protrusion can also be provided with a card groove, and meanwhile, a protrusion is provided on the bottom face of the power/signal terminal assembly, and the power/signal terminal assembly is adapted to the When the first groove is removed, the protrusion of the power/signal terminal assembly is caught in the groove of the first groove.

In this embodiment, the positioning portion further includes a second bump 25 abutting against the inner side of the front wall of the bottom case, and the second bump 25 abuts against the front end of the power/signal terminal assembly 3 , the second bump 25 is provided with a second groove 26 for allowing the second terminal 32 of the front end of the power/signal terminal assembly 3 to pass through.

In this embodiment, the power/signal terminal assembly 2 is composed of two or more L-shaped conductive metal sheets 34 and an insulating plastic injection molded together to insulate the two or more L-shaped conductive metal sheets from each other. The insulating plastic body 35 is flat, and the insulating plastic body 35 is adapted to the first groove 23 in thickness; the L-shaped side of the L-shaped conductive metal sheet protrudes The portion outside the insulating plastic body 35 constitutes the first terminal 31 , and the portion of the other side of the L-shaped conductive metal sheet extending out of the insulating plastic body 35 constitutes the second terminal 32 .

In this embodiment, on the outer side of the front wall of the bottom case 2 , a surrounding wall 27 surrounding the second terminal 32 of the power/signal terminal assembly is further provided at a position corresponding to the through hole 21 .

In this embodiment, the bottom case 2 is further provided with a plurality of protruding posts 28 , and the PCB board 4 rides on the protruding posts 28 .

A vehicle cooling fan control module of the present invention adopts a bottom case 2 with a positioning portion that can position the power/signal terminal assembly in the left and right directions; and the power/signal terminal assembly 3 is adapted to the bottom In the positioning part of the housing, the front end of the power/signal terminal assembly 3 is pressed against the inner side of the front wall of the bottom case 2 to allow the second terminal 32 of the front end of the power/signal terminal assembly to protrude from the the through hole 21 of the bottom case; and in the bottom case 2, on the rear side corresponding to the fitting position of the power/signal terminal assembly 3, there is also a stopper 22 for preventing the power/signal terminal assembly from retreating , and the upper end of the stop block 22 is an inclined surface 221 to facilitate the installation of the power/signal terminal assembly 3 . With this structure of the present invention, by setting the stopper 22 on the rear side of the power/signal terminal assembly 3, the backward phenomenon of the power/signal terminal assembly 3 can be prevented during the assembly process or the plug-in use process; A positioning portion is arranged in the bottom case 2 to ensure that the plug terminals of the power/signal terminal assembly extending out of the bottom case can be accurately assembled in the through holes 21 of the bottom case; / The front and rear of the signal terminal assembly are limited, and the left and right sides of the power/signal terminal assembly are limited by the positioning part, so as to realize the fixing of the power/signal terminal assembly in the bottom case; It acts as a guide rail when assembling the power/signal terminal assembly.

In a vehicle-mounted cooling fan control module of the present invention, the first groove 23 of the positioning part is set in the first bump 24 on the bottom wall of the bottom case, and the second groove 26 of the positioning part is set in the At the second bump 25 on the inner side of the front wall of the bottom case, the first bump 24 and the second bump 25 can be used to form a stable support for the flat power/signal terminal assembly. The bump 24, the second bump 25 and the stopper 22 enhance the strength of the bottom case.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above, or modify it into an equivalent equivalent embodiment. . Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention should fall within the protection scope of the technical solutions of the present invention.

Claims (10)

1. A vehicle-mounted cooling fan control module comprises a bottom shell, an upper cover, a power/signal terminal assembly and a PCB (printed circuit board); the upper end of the power/signal terminal assembly is provided with a first terminal which protrudes upwards, the front end of the power/signal terminal assembly is provided with a second terminal which protrudes forwards, and the power/signal terminal assembly is connected with the PCB board through the first terminal; the front wall of the bottom shell is provided with a through hole which can enable the second terminal at the front end of the power/signal terminal assembly to extend out of the bottom shell; the method is characterized in that: a positioning part capable of positioning the power supply/signal terminal assembly in the left and right directions is arranged in the bottom shell; the power/signal terminal assembly is matched in the positioning part of the bottom shell, and the front end of the power/signal terminal assembly abuts against one surface of the inner side of the front wall of the bottom shell so that a second terminal of the front end of the power/signal terminal assembly extends out of the through hole of the bottom shell; in the bottom shell, a stop block for preventing the power/signal terminal assembly from retreating is arranged at the rear side corresponding to the adapting position of the power/signal terminal assembly, and the upper end of the stop block is an inclined surface, so that the power/signal terminal assembly can be conveniently installed.

2. The on-vehicle cooling fan control module of claim 1, characterized in that: the inclined plane of the stop block is gradually reduced towards the direction of the power supply/signal terminal assembly.

3. The on-vehicle cooling fan control module of claim 2, characterized in that: the lowest point of the inclined plane of the stop block is slightly higher than the bottom end surface of the power/signal terminal assembly after being assembled in place.

4. The on-vehicle cooling fan control module according to claim 1, 2, or 3, characterized in that: the positioning part comprises a first groove arranged on the bottom wall of the bottom shell; the lower part of the power/signal terminal assembly is inserted into the first groove, and the bottom end face of the power/signal terminal assembly is attached to the groove bottom of the first groove.

5. The on-vehicle cooling fan control module of claim 4, characterized in that: the bottom wall of the bottom shell is provided with a first bump, and the first groove is formed in the first bump.

6. The on-vehicle cooling fan control module of claim 5, characterized in that: the bottom of the first groove in the first bump is also provided with a clamping groove, the bottom surface of the power/signal terminal assembly is downwards provided with a bulge, and when the power/signal terminal assembly is adapted to the first groove, the bulge of the power/signal terminal assembly is clamped in the clamping groove of the first groove.

7. The on-vehicle cooling fan control module of claim 4, characterized in that: the positioning part also comprises a second bump which is attached to one surface of the inner side of the front wall of the bottom shell, the second bump is abutted to the front end of the power/signal terminal assembly, and the second bump is provided with a second groove for the second terminal of the front end of the power/signal terminal assembly to pass through.

8. The on-vehicle cooling fan control module of claim 4, characterized in that: the power supply/signal terminal assembly is composed of two or more L-shaped conductive metal sheets and an insulating plastic body, wherein the two or more L-shaped conductive metal sheets are mutually insulated and injected together, the insulating plastic body is flat, and the thickness of the insulating plastic body is matched with that of the first groove; the part of one side of the L shape of the L-shaped conductive metal sheet, which extends out of the insulating plastic body, forms the first terminal, and the part of the other side of the L shape of the L-shaped conductive metal sheet, which extends out of the insulating plastic body, forms the second terminal.

9. The on-vehicle cooling fan control module of claim 1, characterized in that: and a surrounding wall surrounding the second terminal of the power/signal terminal assembly is arranged in the outer side surface of the front wall of the bottom shell and corresponds to the through hole.

10. The on-vehicle cooling fan control module of claim 1, characterized in that: the bottom shell is also provided with a plurality of convex columns, and the PCB is lapped on the convex columns.

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