Injection molding type high-waterproofness wheel speed sensor

Abstract

The utility model discloses an injection molding type high-waterproofness wheel speed sensor, and relates to the field of wheel speed sensors, the injection molding type high-waterproofness wheel speed sensor comprises a shell, edge grooves are formed in the outer walls of the two sides of the shell, mounting mechanisms are mounted on the inner walls of the two edge grooves, each mounting mechanism comprises a mounting column, and the outer wall of each mounting column is fixedly connected with a mounting ring; a mounting assembly is mounted at one end of the mounting column, and a rotating disc is rotationally connected to the other end of the mounting column. According to the wheel speed sensor, the mounting mechanism is arranged on the sensor shell, the mounting ring fixed on the mounting column in the mounting mechanism improves the sealing performance of the wheel speed sensor during mounting, meanwhile, the mounting column is convenient to disassemble and assemble due to the arrangement of the mounting mechanism, and the sealing performance of the wheel speed sensor during mounting is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of wheel speed sensors, in particular to an injection-molded wheel speed sensor with high waterproofness. BACKGROUND

[0002] A wheel speed sensor is a sensor for measuring the rotation speed of a vehicle wheel. Commonly used wheel speed sensors mainly include a magneto-electric wheel speed sensor and a Hall wheel speed sensor. For modern vehicles, wheel speed information is indispensable, and the wheel speed information is required by a vehicle dynamic control system (VDC), an electronic stability program (ESP), an anti-lock braking system (ABS) and a control system of an automatic transmission. Therefore, the wheel speed sensor is one of the most critical sensors in a modern vehicle.

[0003] In order to ensure the waterproof performance of the existing wheel speed sensor, an injection-molded shell sensor is used for protection. However, the injection-molded shell is inconvenient to operate during actual installation, and after installation, the sealing performance is reduced, so that the sensor is prone to water ingress. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of poor sealing performance of the existing wheel speed sensor during installation, the application provides an injection-molded wheel speed sensor with high waterproofness.

[0005] The application provides an injection-molded wheel speed sensor with high waterproofness, which adopts the following technical scheme:

[0006] The injection-molded wheel speed sensor with high waterproofness comprises a shell, the two side walls of the shell are provided with a groove, and the inner walls of the two grooves are provided with a mounting mechanism, the mounting mechanism comprises a mounting column, the outer wall of the mounting column is fixedly connected with a mounting ring, one end of the mounting column is provided with a mounting assembly, and the other end of the mounting column is rotatably connected with a rotating disc.

[0007] By adopting the above technical scheme, the waterproof performance of the sensor is improved by the integrally injection-molded shell, the installation of the mounting mechanism is facilitated by the two grooves on the shell, the sealing performance of the installation of the wheel speed sensor shell is improved by the mounting ring provided on the mounting column, and the installation of the mounting assembly is facilitated by the rotating disc provided on the mounting column.

[0008] Preferably, the mounting assembly comprises a prismatic column fixedly connected to the mounting column, and an installation cavity is formed in the interior of the prismatic column, and the size of the prismatic column is matched with the size of the groove.

[0009] By adopting the above technical scheme, the installation and positioning of the auxiliary mounting column are facilitated by the cooperation between the prismatic column and the groove on the shell.

[0010] Preferably, the two side inner walls of the mounting cavity are provided with openings, and the inner walls of the two openings are slidably connected with limiting pins; the two side inner walls of the ridge groove are provided with limiting grooves, and the specifications of the limiting grooves and the limiting pins are matched.

[0011] By adopting the above technical scheme, the sliding installation of the auxiliary limiting pins is facilitated through the openings in the mounting cavity; when the limiting pins are inserted into the limiting grooves, the prisms are conveniently fixed in the ridge groove.

[0012] Preferably, the two limiting pins are fixedly connected with sliding frames on opposite side outer walls; the two side inner walls of the mounting cavity are fixedly connected with two sliding rods; the two sliding frames are slidably connected to the outer walls of the four sliding rods, and the outer walls of the four sliding rods are sleeved with springs.

[0013] By adopting the above technical scheme, the sliding installation of the sliding frames is facilitated through the sliding rods, and the sliding frames are conveniently supported through the springs, so that the limiting pins are conveniently in the extended state in the normal state.

[0014] Preferably, the two side inner walls of the mounting cavity are rotatably connected with the same gear; the two sliding frames are fixedly connected with racks on opposite side outer walls; and the two racks are meshed with the gear.

[0015] By adopting the above technical scheme, the synchronous action of the two racks is facilitated through the gear, and the position of the limiting pin is conveniently adjusted when the two racks act.

[0016] Preferably, one end of the gear transmission shaft is fixedly connected to the rotating disc; one end of the prism is provided with a groove, and the inner wall of the groove is slidably connected with a pressing plate; and the same rubber block is arranged between the pressing plate and the inner wall of the groove.

[0017] By adopting the above technical scheme, the rotation of the gear is facilitated through the rotating disc, so that the position of the two limiting pins is conveniently adjusted; the cooperation between the rubber block and the pressing plate facilitates the reverse pressing of the prism, and the installation stability of the prism is improved.

[0018] Preferably, the bottom outer wall of the shell is provided with two symmetrical rectangular openings; and the side outer wall of the shell is provided with two symmetrical inclined openings.

[0019] By adopting the above technical scheme, the installation of the sensor is facilitated through the openings of the rectangular openings and the inclined openings.

[0020] In summary, the present application has at least one of the following beneficial technical effects:

[0021] 1. The application sets a mounting mechanism on the sensor shell, and the mounting ring fixed on the mounting column improves the sealing performance during the installation of the wheel speed sensor. At the same time, the setting of the mounting mechanism facilitates the disassembly and assembly of the mounting column, thereby improving the sealing performance during the installation of the wheel speed sensor.

[0022] 2. The application sets a mounting assembly on the mounting column, and the cooperation between the mounting assembly and the groove facilitates the quick installation of the mounting column on the sensor shell. The cooperation between the prism and the groove facilitates the quick positioning of the mounting column during installation and improves the stability of the mounting column. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall structure of an injection molded high waterproof wheel speed sensor is shown in the embodiment of the application.

[0024] Figure 2 The schematic diagram of the shell structure is shown in the embodiment of the application.

[0025] Figure 3 The schematic diagram of the mounting mechanism structure is shown in the embodiment of the application.

[0026] Figure 4 The schematic diagram of the mounting assembly cross-section structure is shown in the embodiment of the application.

[0027] Reference signs: 1, shell; 2, rectangular port; 3, inclined port; 4, mounting mechanism; 5, groove; 6, limiting groove; 7, mounting column; 8, mounting ring; 9, mounting assembly; 10, rotating disc; 11, prism; 12, mounting cavity; 13, sliding frame; 14, limiting pin; 15, sliding rod; 16, spring; 17, gear; 18, rack; 19, rubber block; 20, pressing plate. DETAILED DESCRIPTION

[0028] The following will be described in detail in combination with the accompanying Figures 1-4 The application will be further described in detail.

[0029] The embodiment of the application discloses an injection molded high waterproof wheel speed sensor.

[0030] Reference Figures 1-3 An injection molded high waterproof wheel speed sensor comprises a shell 1, the two side outer walls of the shell 1 are provided with grooves 5, the inner walls of the two grooves 5 are provided with mounting mechanisms 4, the bottom outer wall of the shell 1 is provided with two symmetrical rectangular ports 2, and the side outer wall of the shell 1 is provided with two symmetrical inclined ports 3. The setting of the rectangular ports 2 and the inclined ports 3 facilitates the installation of the sensor.

[0031] In use, the integrated injection molded shell 1 improves the waterproof performance of the sensor, and the two grooves 5 on the shell 1 facilitate the installation of the mounting mechanism 4.

[0032] With reference to Figures 2-3 , the mounting mechanism 4 comprises a mounting column 7, and the outer wall of the mounting column 7 is fixedly connected with a mounting ring 8; one end of the mounting column 7 is provided with a mounting assembly 9, and the other end of the mounting column 7 is rotatably connected with a rotating disc 10; the mounting ring 8 arranged on the mounting column 7 improves the sealing performance of the wheel speed sensor shell installation; and the rotating disc 10 arranged on the mounting column 7 facilitates manual adjustment of the mounting assembly 9.

[0033] With reference to Figures 3-4 , the mounting assembly 9 comprises a prismatic column 11 fixedly connected to the mounting column 7, and an installation cavity 12 is arranged in the prismatic column 11; the specification of the prismatic column 11 is matched with the specification of the prismatic groove 5; the two side inner walls of the installation cavity 12 are both provided with an opening, and the inner walls of the two openings are both slidably connected with a limiting pin 14; the two side inner walls of the prismatic groove 5 are both provided with a limiting groove 6, and the specification of the limiting groove 6 is matched with the specification of the limiting pin 14; the opposite side outer walls of the two limiting pins 14 are both fixedly connected with a sliding frame 13; the two side inner walls of the installation cavity 12 are both fixedly connected with two sliding rods 15; the two sliding frames 13 are respectively slidably connected to the outer walls of the four sliding rods 15, and the outer walls of the four sliding rods 15 are all sleeved with a spring 16; the two side inner walls of the installation cavity 12 are rotatably connected with the same gear 17; the opposite side outer walls of the two sliding frames 13 are both fixedly connected with a rack 18; the two racks 18 are both meshed with the gear 17; one end of the transmission shaft of the gear 17 is fixedly connected to the rotating disc 10; one end of the prismatic column 11 is provided with a recess, and the inner wall of the recess is slidably connected with a pressing plate 20; and the same rubber block 19 is arranged between the pressing plate 20 and the inner wall of the recess.

[0034] In use, the rotating disc 10 directly drives the gear 17 to rotate when the rotating disc 10 rotates; the gear 17 directly drives the two racks 18 to move towards or away from each other when the gear 17 rotates; the two sliding frames 13 directly drive the two limiting pins 14 to be retracted into the installation cavity 12 when the two racks 18 move towards each other, and the springs 16 on the sliding rods 15 are compressed by the sliding frames 13 at this time; then the prismatic column 11 is inserted into the prismatic groove 5, and the mounting column 7 is squeezed with force, the two limiting pins 14 of the rotating disc 10 are inserted into the limiting grooves 6 under the driving of the springs 16, so as to facilitate the mounting column 7 to be fixed on the shell 1, and the mounting ring 8 arranged on the mounting column 7 improves the sealing performance of the wheel speed sensor installation.

[0035] The implementation principle of the injection molded high waterproof wheel speed sensor embodiment of the present application is as follows: when the wheel speed sensor needs to be installed, the installation mechanism 4 is first installed on the shell 1 of the wheel speed sensor. When installing, the rotating disc 10 is first rotated. The rotating disc 10 directly drives the gear 17 to rotate when rotating. The gear 17 directly drives the two racks 18 to move towards or away from each other when rotating. When the two racks 18 move towards each other, the two sliding frames 13 are directly pulled to drive the two limiting pins 14 to be retracted into the installation cavity 12. Then the prism 11 is inserted into the prism groove 5. When the installation column 7 is squeezed with force, the rotating disc 10 is loosened. The two limiting pins 14 are inserted into the limiting slot 6 under the drive of the spring 16, so as to conveniently fix the installation column 7 on the shell 1. The installation ring 8 on the installation column 7 improves the sealing performance of the wheel speed sensor installation.

[0036] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A highly waterproof injection-molded wheel speed sensor, comprising a housing (1), characterized in that: The outer walls of the outer shell (1) are provided with grooves (5) on both sides, and the inner walls of the two grooves (5) are provided with mounting mechanisms (4). The mounting mechanism (4) includes a mounting post (7), and the outer wall of the mounting post (7) is fixedly connected with a mounting ring (8). One end of the mounting post (7) is provided with a mounting component (9), and the other end of the mounting post (7) is rotatably connected with a rotating disk (10).

2. The injection-molded high waterproof wheel speed sensor according to claim 1, characterized in that: The mounting assembly (9) includes a prism (11) fixedly connected to the mounting post (7), and the prism (11) has an mounting cavity (12) inside. The specifications of the prism (11) match the specifications of the groove (5).

3. The injection-molded high-waterproof wheel speed sensor according to claim 2, characterized in that: The inner walls on both sides of the mounting cavity (12) are provided with openings, and the inner walls of the two openings are slidably connected with limit pins (14). The inner walls on both sides of the rib groove (5) are provided with limit grooves (6), and the specifications of the limit grooves (6) and the limit pins (14) are matched.

4. The injection-molded high waterproof wheel speed sensor according to claim 3, characterized in that: The two limiting pins (14) are fixedly connected to the outer walls of opposite sides by sliding brackets (13), and the two inner walls of the mounting cavity (12) are fixedly connected to two sliding rods (15). The two sliding brackets (13) are slidably connected to the outer walls of the four sliding rods (15), and the outer walls of the four sliding rods (15) are all sleeved with springs (16).

5. The injection-molded high waterproof wheel speed sensor according to claim 4, characterized in that: The same gear (17) is rotatably connected to the inner walls of both sides of the mounting cavity (12), and racks (18) are fixedly connected to the outer walls of the opposite sides of the two sliding frames (13), and the two racks (18) mesh with the gear (17).

6. The injection-molded high waterproof wheel speed sensor according to claim 5, characterized in that: One end of the gear (17) drive shaft is fixedly connected to the rotating disk (10), and one end of the prism (11) is provided with a groove, and the inner wall of the groove is slidably connected to a pressure plate (20). The same rubber block (19) is installed between the pressure plate (20) and the inner wall of the groove.

7. The injection-molded high waterproof wheel speed sensor according to claim 6, characterized in that: The outer wall of the shell (1) has two symmetrical rectangular openings (2) at the bottom and two symmetrical oblique openings (3) on one side of the outer wall of the shell (1).

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