Automobile camshaft sensor

Abstract

The utility model relates to the related technical field of valve rod machining equipment, in particular to an automobile camshaft sensor which comprises a sensor body, a reinforcing mechanism is arranged on the surface of one side of the sensor body, and a protection mechanism is arranged on the surface of one side of the sensor body. According to the reinforcing mechanism, through the arrangement of the box body, the first fixing rod, the movable plate, a first spring, a pressing block, a second fixing rod, a second spring, a pressing block and a sealing ring, the pressing block is pressed, the pressing block extrudes the first spring, the first spring moves to push the movable plate to move, the movable block stretches the second spring, and the second spring drives the pressing block to move; when the pressing block completely enters the sensor body, the pressing block is loosened, the first spring and the second spring recover deformation, the pressing block and the pressing block are ejected out of the sensor body, the pressing block and the inner wall of the installation position are tightly extruded, the reinforcing effect is achieved, and the problem that the precision is reduced due to the fact that parts in the sensor are loosened due to vibration of an automobile is solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to sensors, in particular to an automobile camshaft sensor. Background Art

[0002] A sensor is a detection device that can sense the information being measured and can convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. The main function of the automotive camshaft sensor is to collect the camshaft movement angle signal and input it into the electronic control unit to determine the ignition timing and injection timing. The camshaft position sensor can identify the cylinder compression top dead center, realize sequential injection control, ignition timing control and detonation control. The camshaft signal wheel is generally installed at the front end of the camshaft. The camshaft phase sensor must face the signal wheel to collect signals, so the stability of the installation of the automotive camshaft sensor plays a key role. At present, most of the sensors on the market are easily affected by the vibration of the car during use, resulting in loose installation of the parts, which affects the position of the sensor, resulting in reduced accuracy and affecting its use effect. In addition, when it is aged, it lacks short-circuit protection and is very likely to cause damage to the vehicle body. Therefore, a kind of automotive camshaft sensor is particularly needed.

[0003] Because most sensors on the market have internal parts that are easily affected by vehicle vibration during use, which can cause the parts to become loose during installation, affecting the position of the sensor, resulting in reduced accuracy and affecting its use effect. In addition, when it ages, there is a lack of short-circuit protection, which can easily cause damage to the vehicle body. Utility Model Content

[0004] The utility model aims to provide a car camshaft sensor to solve the problem raised in the above background technology that the internal parts of most sensors on the market are easily affected by the vibration of the car during use, which may cause the parts to be loosened during installation, thereby affecting the position of the sensor and reducing the accuracy, affecting its use effect. In addition, when it ages, it lacks short-circuit protection and is very likely to cause damage to the car body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile camshaft sensor, comprising a sensor body, the inner wall surface of the sensor body is provided with a reinforcement mechanism, and the inner wall surface of the sensor body is provided with a protection mechanism;

[0006] The reinforcement mechanism includes a box body, a first fixed rod, a movable plate, a first spring, a pressing block, a second fixed rod, a second spring, a pressure block and a sealing ring. The inner wall of the sensor body is fixedly connected to the box body, the first fixed rod is welded to the inner surface of the box body, the outer wall of the first fixed rod is sleeved with a movable plate, one side surface of the movable plate is fixedly connected to the first spring, one end surface of the first spring is fixedly connected to the pressing block, one side surface of the movable plate is penetrated by the second fixed rod, one side surface of the movable plate is fixedly connected to the second spring, one end surface of the second spring is fixedly connected to the pressure block, and a sealing ring is installed on the outer wall of the pressure block.

[0007] Preferably, the protective mechanism includes a slot, a connecting block, a fire extinguishing sleeve, a cooling sleeve and a coil, the inner wall of the sensor body is provided with a slot, one side surface of the slot is tightly connected to the connecting block, one end surface of the connecting block is fixedly connected to the fire extinguishing sleeve, the inner wall of the fire extinguishing sleeve is provided with a cooling sleeve, and the inner wall of the cooling sleeve is provided with a coil.

[0008] Preferably, the pressing block is provided with two groups of sealing rings on the inner wall of the sensor body, and the inner diameter size of the sealing rings is consistent with the outer wall size of the pressing block.

[0009] Preferably, the inner wall size of the movable plate matches the outer wall size of the first fixing rod, and the inner wall size of the movable plate matches the outer wall size of the second fixing rod.

[0010] Preferably, the outer wall size of the second fixing rod is consistent with the inner diameter size of the second spring, and the outer wall size of the first fixing rod is consistent with the inner diameter size of the first spring.

[0011] Preferably, the outer wall of the pressing block is made of rubber, and the pressing block as a whole is partially hollow, so that it can be partially sleeved on the second fixing rod when displaced.

[0012] Preferably, two groups of the slots are opened on the inner wall of the sensor body, and two groups of the connecting blocks are provided.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the automobile camshaft sensor, through the arrangement of the box body, the first fixed rod, the movable plate, the first spring, the push block, the second fixed rod, the second spring, the pressure block and the sealing ring, when installing the sensor body, first press the push block, the push block squeezes the first spring, the first spring displacement pushes the movable plate on the first fixed rod to move away from the push block, the movable block is stretched when the displacement occurs, the second spring drives the pressure block to move, until the pressure block completely enters the sensor body, at this time, the sensor body is placed in the installation position, the sensor body is rotated so that the thread of its outer wall is combined with the installation position, the thread plays a reinforcing role, the push block is released, the first spring and the second spring restore the deformation, the push block and the pressure block are pushed out of the sensor body, the pressure block and the inner wall of the installation position are tightly squeezed, and play a reinforcing role, which solves the problem that the parts inside the sensor are easily affected by the vibration of the car during use, resulting in the loose installation of the parts, causing the position of the sensor to be affected and the accuracy to be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the reinforcement mechanism structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the protection mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the press block and the sealing ring used in conjunction with each other in the utility model.

[0018] In the figure: 1. sensor body; 2. reinforcement mechanism; 201. box; 202. first fixing rod; 203. movable plate; 204. first spring; 205. push block; 206. second fixing rod; 207. second spring; 208. pressure block; 209. sealing ring; 3. protection mechanism; 301. slot; 302. connecting block; 303. fire extinguishing sleeve; 304. cooling sleeve; 305. coil. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: an automobile camshaft sensor, comprising a sensor body 1, a reinforcement mechanism 2 is provided on the inner wall surface of the sensor body 1, and a protection mechanism 3 is provided on the inner wall surface of the sensor body 1;

[0021] The reinforcement mechanism 2 includes a box body 201, a first fixing rod 202, a movable plate 203, a first spring 204, a pressing block 205, a second fixing rod 206, a second spring 207, a pressing block 208 and a sealing ring 209. The inner wall of the sensor body 1 is fixedly connected with the box body 201, the inner surface of the box body 201 is welded with the first fixing rod 202, the outer wall of the first fixing rod 202 is sleeved with a movable plate 203, and one side surface of the movable plate 203 is fixedly connected with the first spring 204. A pressing block 205 is fixedly connected to one end surface, a second fixing rod 206 is penetrated and connected to one side surface of the movable plate 203, a second spring 207 is fixedly connected to one side surface of the movable plate 203, a pressing block 208 is fixedly connected to one end surface of the second spring 207, a sealing ring 209 is installed on the outer wall of the pressing block 208, and a sealing ring 209 is installed on the outer wall of the pressing block 208. The arrangement of the ring 209, when installing the sensor body 1, first press the push block 205, the push block 205 squeezes the first spring 204, the first spring 204 displaces and pushes the movable plate 203 to move on the first fixed rod 202 in the direction away from the push block 205, and the movable plate 203 is stretched when the displacement occurs. The second spring 207 drives the pressure block 208 to displace until the pressure block 208 completely enters the sensor body 1, at this time, the sensor body 1 is placed in the installation position, the sensor body 1 is rotated so that the thread of its outer wall is combined with the installation position, the thread plays a reinforcing role, the push block 205 is released, the first spring 204 and the second spring 207 restore their deformation, the push block 205 and the pressure block 208 are pushed out of the sensor body 1, and the pressure block 208 is tightly squeezed with the inner wall of the installation position to play a reinforcing role, which solves the problem that the internal parts of the sensor are easily affected by the vibration of the car during use, resulting in the loosening of the parts, causing the position of the sensor to be affected and the accuracy to be reduced.

[0022] Further, the protection mechanism 3 includes a slot 301, a connection block 302, a fire extinguishing sleeve 303, a cooling sleeve 304 and a coil 305. The protection mechanism 3 includes a slot 301, a connection block 302, a fire extinguishing sleeve 303, a cooling sleeve 304 and a coil 305. The inner wall of the sensor body 1 is provided with a slot 301, a surface of one side of the slot 301 is tightly connected to the connection block 302, a surface of one end of the connection block 302 is fixedly connected to the fire extinguishing sleeve 303, the inner wall of the fire extinguishing sleeve 303 is provided with a cooling sleeve 304, and the inner wall of the cooling sleeve 304 is provided with a coil 305. Through the arrangement of the slot 301, the connecting block 302, the fire extinguishing sleeve 303, the cooling sleeve 304 and the coil 305, when the electronic components such as the coil 305 are put into use, as the service life becomes longer and longer, the electronic components such as the coil 305 are prone to heat up. The cooling sleeve 304 sleeved on the outer wall of the coil 305 plays a cooling role. When the temperature is cooled, it can still reach the expansion temperature of the graphite layer filled in the fire extinguishing sleeve 303. When the graphite layer encounters high temperature, the volume can expand instantly, which effectively reduces the possibility of fire and increases the safety of the sensor.

[0023] Furthermore, two groups of pressure blocks 208 are arranged on the inner wall of the sensor body 1, and the inner diameter of the sealing ring 209 is consistent with the outer wall size of the pressure block 208. Through the arrangement of the pressure block 208, the sensor body 1 can be reinforced in the installation position, thereby reducing the susceptibility of its internal parts to the influence of automobile vibration and causing the parts to become loose during installation.

[0024] Furthermore, the inner wall size of the movable plate 203 is consistent with the outer wall size of the first fixed rod 202, and the inner wall size of the movable plate 203 is consistent with the outer wall size of the second fixed rod 206. Through the setting of the movable plate 203, the first spring 204 and the second spring 207 can be integrated. When the first spring 204 squeezes and pushes the movable plate 203, the movable plate 203 will drive the second spring 207 to deform, thereby realizing the movement of the pressure block 208.

[0025] Furthermore, the outer wall size of the second fixing rod 206 is consistent with the inner diameter size of the second spring 207, and the outer wall size of the first fixing rod 202 is consistent with the inner diameter size of the first spring 204. By setting the second fixing rod 206, the position of the second spring 207 can be limited when it is deformed, and the displacement direction of the movable plate 203 can be guaranteed, thereby ensuring the stability of the structure.

[0026] Furthermore, the outer wall material of the pressing block 208 is rubber, and the pressing block 208 as a whole is partially hollow, so that it can be partially mounted on the second fixing rod 206 during displacement. Through the setting of the pressing block 208, the outer wall rubber material has good deformation and can provide greater friction, which can reduce the susceptibility of its internal parts to the influence of automobile vibration and cause the parts to become loose during installation.

[0027] Furthermore, two groups of slots 301 are opened on the inner wall of the sensor body 1, and two groups of connecting blocks 302 are provided. Through the setting of the slots 301, the connecting blocks 302 are stably connected to the inner wall of the sensor body 1, providing stable support, so that the entire structure has good stability.

[0028] Working principle: When installing the sensor body 1, first press the push block 205, the push block 205 squeezes the first spring 204, the first spring 204 moves to push the movable plate 203 on the first fixing rod 202 to move away from the push block 205, and when the movable plate 203 moves, the second spring 207 is stretched, and the second spring 207 drives the pressure block 208 to move until the pressure block 208 completely enters the sensor body 1. At this time, the sensor body 1 is placed in the installation position, and the sensor body 1 is rotated so that the thread of its outer wall is combined with the installation position. The thread plays a reinforcing role, and the push block 205 is released. The first spring 204 and the second spring 207 restore their deformation, and the push block 205 and the pressure block 208 are pushed out of the sensor body. In the sensor body 1, the pressing block 208 is tightly pressed against the inner wall of the installation position to play a role of reinforcing. This solves the problem that the parts inside the sensor are easily affected by the vibration of the car during use, which causes the parts to be installed loosely, causing the position of the sensor to be affected and the accuracy to be reduced. When the electronic components such as the coil 305 are put into use, as the service life becomes longer and longer, the electronic components such as the coil 305 are prone to heat. The cooling sleeve 304 mounted on the outer wall of the coil 305 plays a cooling role. When the temperature is cooled, it can still reach the expansion temperature of the graphite layer filled in the fire extinguishing sleeve 303. When the graphite layer encounters high temperature, the volume can expand instantly, which effectively reduces the possibility of fire and increases the safety of the sensor.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile camshaft sensor, comprising a sensor body (1), characterized in that: The inner wall surface of the sensor body (1) is provided with a reinforcement mechanism (2), and the inner wall surface of the sensor body (1) is provided with a protection mechanism (3); The reinforcement mechanism (2) comprises a box (201), a first fixing rod (202), a movable plate (203), a first spring (204), a pressing block (205), a second fixing rod (206), a second spring (207), a pressing block (208) and a sealing ring (209); the inner wall of the sensor body (1) is fixedly connected to the box (201); the inner surface of the box (201) is welded with the first fixing rod (202); the outer wall of the first fixing rod (202) is sleeved with the movable plate (203) ), a first spring (204) is fixedly connected to one side surface of the movable plate (203), a pressing block (205) is fixedly connected to one end surface of the first spring (204), a second fixing rod (206) is passed through one side surface of the movable plate (203), a second spring (207) is fixedly connected to one side surface of the movable plate (203), a pressing block (208) is fixedly connected to one end surface of the second spring (207), and a sealing ring (209) is installed on the outer wall of the pressing block (208).

2. The automotive camshaft sensor according to claim 1, characterized in that: The protection mechanism (3) comprises a slot (301), a connecting block (302), a fire extinguishing sleeve (303), a cooling sleeve (304) and a coil (305); the inner wall of the sensor body (1) is provided with a slot (301); a surface on one side of the slot (301) is tightly connected to the connecting block (302); a surface on one end of the connecting block (302) is fixedly connected to the fire extinguishing sleeve (303); the inner wall of the fire extinguishing sleeve (303) is provided with a cooling sleeve (304); and the inner wall of the cooling sleeve (304) is provided with a coil (305).

3. The automotive camshaft sensor according to claim 1, characterized in that: Two groups of the pressing blocks (208) are arranged on the inner wall of the sensor body (1), and the inner diameter of the sealing ring (209) matches the outer wall size of the pressing blocks (208).

4. The automotive camshaft sensor according to claim 1, characterized in that: The inner wall size of the movable plate (203) matches the outer wall size of the first fixed rod (202), and the inner wall size of the movable plate (203) matches the outer wall size of the second fixed rod (206).

5. The automotive camshaft sensor according to claim 1, characterized in that: The outer wall size of the second fixing rod (206) matches the inner diameter size of the second spring (207), and the outer wall size of the first fixing rod (202) matches the inner diameter size of the first spring (204).

6. The automotive camshaft sensor according to claim 1, characterized in that: The outer wall of the pressing block (208) is made of rubber, and the pressing block (208) is partially hollow as a whole, so that it can be partially sleeved on the second fixing rod (206) when it is displaced.

7. The automotive camshaft sensor according to claim 2, characterized in that: Two groups of the slots (301) are opened on the inner wall of the sensor body (1), and two groups of the connecting blocks (302) are provided.

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