A highly sensitive magnetoelectric sensor for on-board battery monitoring

Abstract

The present invention discloses a high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring, comprising a bottom plate, a fixing mechanism is arranged on the bottom plate, a shell is fixedly connected to the bottom plate, a heat dissipation mechanism is arranged on the shell, an air outlet is opened on the shell, a dust screen is bonded on the shell, the dust screen and the air outlet are in corresponding positions, an induction mechanism is arranged on the bottom plate, four legs are welded on the shell, the four legs are evenly distributed on the shell, and a circuit board is fixedly mounted on the legs. The present invention relates to a high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring, which has the characteristics of high device sensitivity, reduced device vibration and easy fixation.

Description

Technical Field

[0001] The present invention belongs to the technical field of magnetoelectric sensors, and in particular relates to a high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring. Background Art

[0002] As we all know, the energy consumed by using oil to generate electricity and then storing energy in batteries to drive cars is about 1 / 4 of the energy consumed by directly using fuel. At the same time, with the rise of the concept of environmental protection, the development of various new energy vehicles is more active and rapid. At present, in order to pursue higher energy density, most manufacturers use lithium batteries for commonly used vehicle batteries. During the use of lithium batteries, they need to be monitored by magnetoelectric sensors to avoid safety hazards caused by excessive battery temperature. In the prior art, the magnetoelectric sensor used for vehicle battery monitoring has low sensitivity when in use. At the same time, when the device is in use, the vibration of the heat dissipation mechanism will cause the device to vibrate, causing the internal components to loosen, and the device is inconvenient to fix. Therefore, it is necessary to improve the prior art. Summary of the invention

[0003] The purpose of the present invention is to provide a high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring in order to solve the above-mentioned problems, thereby solving the problems mentioned in the background technology.

[0004] In order to solve the above problems, the present invention provides a technical solution:

[0005] A high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring comprises a base plate, a fixing mechanism is arranged on the base plate, a shell is fixedly connected to the base plate, a heat dissipation mechanism is arranged on the shell, an air outlet is opened on the shell, a dustproof net is bonded to the shell, the dustproof net and the air outlet are in corresponding positions, an induction mechanism is arranged on the base plate, four legs are welded on the shell, the four legs are evenly distributed on the shell, and a circuit board is fixedly mounted on the legs.

[0006] Preferably, the fixing mechanism includes a support, a slider, a screw, a cylinder, a slide groove, a piston, a spring, a suction cup, a guide pin, a guide groove, a limit cover and a protrusion. The support is welded to the base plate, and a slider is slidably connected to the support, the slider is in contact with the base plate, a screw is rotatably connected to the support, the screw and the slider are threadedly connected, a cylinder is welded on the slider, a slide groove is provided on the support, a cylinder is slidably connected in the slide groove, a piston is slidably connected in the cylinder, a spring is arranged in the cylinder, a suction cup is fixedly sleeved on the outer side of the cylinder, a guide pin is fixedly connected to the piston, a guide groove is provided on the side wall of the cylinder, a guide pin is slidably connected in the guide groove, and a limit cover is threadedly connected to the outer side of the cylinder.

[0007] Preferably, one end of the spring is welded to the slider, and the other end of the spring is bonded to the piston.

[0008] Preferably, a bump is welded on the guide pin, and the bump is in contact with the limiting cover.

[0009] Preferably, the heat dissipation mechanism includes a connecting seat, a filter cover, a corrugated sleeve, a spring piece, a connecting rod, a support plate, a motor, a rotating shaft, a connecting sleeve, a limit pin, a support shaft, a fan blade, a rubber block and a baffle. The connecting seat is welded to the shell, and a filter cover is slidably sleeved in the connecting seat, and the filter cover is in contact with the shell. A spring piece is welded in the connecting seat, and the spring piece is welded to the filter cover, the connecting rod is welded to the shell, a support plate is welded on the connecting rod, and a motor is fixedly mounted on the support plate. The rotating shaft of the motor is rotatably connected to the support plate, a connecting sleeve is slidably sleeved on the outer side of the rotating shaft, a support shaft is welded on the connecting sleeve, a fan blade is welded on the support shaft, a rubber block is bonded to the fan blade, a baffle is welded in the filter cover, and the baffle is in contact with the rubber block.

[0010] Preferably, a corrugated sleeve is fixedly sleeved on the outer side of the connecting seat, and a filter cover is fixedly sleeved on the inner side of the corrugated sleeve.

[0011] Preferably, the side wall of the connecting sleeve is slidably sleeved with a limit pin, and the limit pin and the rotating shaft are connected by threads.

[0012] Preferably, the sensing mechanism includes a cover body, a winding, an iron core, a screw, a barrel, a connecting plate, an airbag, a pressure sensor and a metal plate. The cover body and the base plate are welded, the cover body is fixedly mounted with a winding, the iron core is in contact with the base plate, a screw is welded on the iron core, the screw and the base plate are rotatably connected, the outer side of the screw is connected to a barrel by a thread, a connecting plate is welded on the barrel, an airbag is bonded to the connecting plate, the cover body is fixedly mounted with a pressure sensor, and the pressure sensor is fixedly mounted with a metal plate.

[0013] The beneficial effects of the present invention are as follows: the present invention relates to a high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring, which has the characteristics of high device sensitivity, reduced device vibration and easy device fixation. In specific use, compared with the traditional high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring, the high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring has the following beneficial effects:

[0014] First, by setting up structures such as supports, sliders, screws, cylinders, pistons, and suction cups, the screws and sliders are rotated to make threaded motions, so that the slider drives the cylinder to move. When the device is fixed, the position of the suction cup can be adjusted to avoid obstruction caused by the frame on the battery, making the device easy to fix.

[0015] Secondly, by setting up a connecting seat, filter cover, spring clip, connecting rod, support plate, motor, support shaft, fan blades, rubber blocks, baffles and other structures, the fan blades are driven to rotate by the motor, so that the rubber blocks on the fan blades and the baffles collide to cause the filter cover to vibrate, so that dust on the filter cover is separated and the filter cover is prevented from being blocked. At the same time, the filter cover is supported by the spring clip to prevent the vibration of the filter cover from causing the vibration of the shell, so that the components in the shell will not loosen.

[0016] Again, by setting up structures such as windings, iron cores, airbags, pressure sensors, and metal plates, when the battery temperature rises, the airbags expand, causing the iron core to enter the windings. The longer the iron core enters the windings, the greater the magnetic field force, which in turn causes the metal plate to move downward, causing the pressure sensor value to change, and the device has high sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 A front cross-sectional view of

[0020] Figure 3 For the present invention Figure 2 Cross-sectional view of the support in;

[0021] Figure 4 For the present invention Figure 3 A in the enlarged view;

[0022] Figure 5 For the present invention Figure 2 The enlarged view of point B in the figure;

[0023] Figure 6 For the present invention Figure 2 Enlarged view of point C in .

[0024] In the figure: 1, bottom plate; 2, fixing mechanism; 21, support; 22, slider; 23, screw; 24, cylinder; 25, slide; 26, piston; 27, spring; 28, suction cup; 29, guide pin; 210, guide groove; 211, limit cover; 212, bump; 3, shell; 4, heat dissipation mechanism; 41, connecting seat; 42, filter cover; 43, corrugated sleeve; 44, spring; 45, connecting rod; 46, support plate; 47, Motor; 48, rotating shaft; 49, connecting sleeve; 410, limiting pin; 411, supporting shaft; 412, fan blade; 413, rubber block; 414, baffle; 5, air outlet; 6, dust screen; 7, sensing mechanism; 71, cover; 73, winding; 75, iron core; 76, screw rod; 77, screw barrel; 78, connecting plate; 79, airbag; 710, pressure sensor; 711, metal plate; 8, support foot; 9, circuit board. DETAILED DESCRIPTION

[0025] like Figure 1-6 As shown, this specific implementation adopts the following technical solutions:

[0026] Example:

[0027] A high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring comprises a base plate 1, a fixing mechanism 2 is provided on the base plate 1, a shell 3 is fixedly connected to the base plate 1, a heat dissipation mechanism 4 is provided on the shell 3, an air outlet 5 is opened on the shell 3, a dustproof net 6 is bonded to the shell 3, and the dustproof net 6 and the air outlet 5 are located in corresponding positions, an induction mechanism 7 is provided on the base plate 1, four legs 8 are welded on the shell 3, the four legs 8 are evenly distributed on the shell 3, and a circuit board 9 is fixedly mounted on the legs 8.

[0028] The fixing mechanism 2 includes a support 21, a slider 22, a screw 23, a cylinder 24, a slide 25, a piston 26, a spring 27, a suction cup 28, a guide pin 29, a guide groove 210, a limit cover 211 and a protrusion 212. The support 21 is welded to the base plate 1, and the slider 22 is slidably connected in the support 21. The slider 22 is in contact with the base plate 1. The support 21 is rotatably connected with a screw 23. The screw 23 and the slider 22 are connected by threads. The slider 22 is welded with The cylinder 24, the support 21 is provided with a slide groove 25, the cylinder 24 is slidably connected in the slide groove 25, the piston 26 is slidably connected in the cylinder 24, a spring 27 is arranged in the cylinder 24, a suction cup 28 is fixedly sleeved on the outer side of the cylinder 24, a guide pin 29 is fixedly connected to the piston 26, a guide groove 210 is provided on the side wall of the cylinder 24, a guide pin 29 is slidably connected in the guide groove 210, and a limit cover 211 is connected to the outer side of the cylinder 24 through a thread. By setting the above structure, the device is easy to fix.

[0029] One end of the spring 27 is welded to the slider 22, and the other end of the spring 27 is bonded to the piston 26. The spring 27 is provided to assist the piston 26 in resetting.

[0030] A convex block 212 is welded on the guide pin 29, and the convex block 212 is in contact with the position limiting cover 211. By providing the convex block 212, the friction between the guide pin 29 and the position limiting cover 211 is reduced.

[0031] The heat dissipation mechanism 4 includes a connecting seat 41, a filter cover 42, a corrugated sleeve 43, a spring piece 44, a connecting rod 45, a support plate 46, a motor 47, a rotating shaft 48, a connecting sleeve 49, a limit pin 410, a support shaft 411, a fan blade 412, a rubber block 413 and a baffle 414. The connecting seat 41 is welded to the shell 3, and the filter cover 42 is slidably sleeved in the connecting seat 41. The filter cover 42 is in contact with the shell 3. The connecting seat 41 is welded with a spring piece 44, and the spring piece 44 is welded to the filter cover 42. The rod 45 is welded to the housing 3, a support plate 46 is welded to the connecting rod 45, a motor 47 is fixedly mounted on the support plate 46, a rotating shaft 48 of the motor 47 is rotatably connected to the support plate 46, a connecting sleeve 49 is slidably sleeved on the outer side of the rotating shaft 48, a supporting shaft 411 is welded to the connecting sleeve 49, a fan blade 412 is welded to the supporting shaft 411, a rubber block 413 is bonded to the fan blade 412, a baffle 414 is welded inside the filter cover 42, and the baffle 414 is in contact with the rubber block 413. By setting the above structure, heat dissipation is facilitated in the device.

[0032] The outer side of the connecting seat 41 is fixedly sleeved with a corrugated sleeve 43, and the inner side of the corrugated sleeve 43 is fixedly sleeved with a filter cover 42. By providing the corrugated sleeve 43, the sealing between the connecting seat 41 and the filter cover 42 is increased.

[0033] The side wall of the connecting sleeve 49 is slidably sleeved with a limit pin 410, and the limit pin 410 is threadedly connected to the rotating shaft 48. By providing the limit pin 410, the connecting sleeve 49 and the rotating shaft 48 are connected.

[0034] The sensing mechanism 7 includes a cover 71, a winding 73, an iron core 75, a screw 76, a screw barrel 77, a connecting plate 78, an airbag 79, a pressure sensor 710 and a metal plate 711. The cover 71 is welded to the bottom plate 1, the cover 71 is fixedly mounted with the winding 73, the iron core 75 is in contact with the bottom plate 1, a screw 76 is welded to the iron core 75, the screw 76 is rotatably connected to the bottom plate 1, the outer side of the screw 76 is connected with a screw barrel 77 by a thread, a connecting plate 78 is welded to the screw barrel 77, an airbag 79 is bonded to the connecting plate 78, a pressure sensor 710 is fixedly mounted on the cover 71, and a metal plate 711 is fixedly mounted on the pressure sensor 710. By setting the above structure, the device has a higher sensitivity.

[0035] The use state of the present invention is: when the sensor is fixed on the battery, the screw 23 is manually rotated, the screw 23 rotates and makes a threaded motion with the slider 22, so that the slider 22 drives the cylinder 24 to move, and when the cylinder 24 moves to a suitable position, the device is pressed toward the battery so that the suction cup 28 contacts the battery, and then the limit cover 211 is rotated, the limit cover 211 rotates and makes a threaded motion with the cylinder 24, so that the limit cover 211 moves toward the support 21, the limit cover 211 drives the guide pin 29 to move, the guide pin 29 drives the piston 26 to move, and the movement of the piston 26 forms a negative pressure between the suction cup 28 and the battery, so that the device is adsorbed on the battery, at this time the airbag 79 contacts the battery, when the battery temperature rises, the airbag 79 expands, so that the connecting plate 78 moves toward the shell 3, so that the iron core 75 enters In the winding 73, the longer the length of the iron core 75 entering the winding 73 is, the higher the magnetic field strength is, and the metal plate 711 is adsorbed. As the magnetic field strength increases, the magnetic field has a greater adsorption force on the metal plate 711, which causes the metal plate 711 to move downward, causing the value of the pressure sensor 710 to change. The device has high sensitivity. When using the device, the motor 47 is started, and the motor 47 starts the rotation of the shaft 48, and the shaft 48 drives the support shaft 411 to rotate. The rotation of the support shaft 411 drives the fan blade 412 to rotate, so that the rubber block 413 and the baffle 414 on the fan blade 412 collide with each other, causing the filter cover 42 to vibrate, so that the dust on the filter cover 42 is detached, and the filter cover 42 is prevented from being blocked. At the same time, the filter cover 42 is supported by the spring 44 to prevent the vibration of the filter cover 42 from causing the vibration of the shell 3, so that the components in the shell 3 will not loosen.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a fixing mechanism (2), the bottom plate (1) is fixedly connected to a shell (3), the shell (3) is provided with a heat dissipation mechanism (4), the shell (3) is provided with an air outlet (5), a dust screen (6) is bonded to the shell (3), the dust screen (6) and the air outlet (5) are located in corresponding positions, the bottom plate (1) is provided with a sensing mechanism (7), the shell (3) is welded with four legs (8), the four legs (8) are evenly distributed on the shell (3), and a circuit board (9) is fixedly mounted on the legs (8); The sensing mechanism (7) comprises a cover (71), a winding (73), an iron core (75), a screw (76), a screw barrel (77), a connecting plate (78), an airbag (79), a pressure sensor (710) and a metal plate (711); the cover (71) and the bottom plate (1) are welded; the winding (73) is fixedly mounted on the cover (71); the iron core (75) and the bottom plate (1) are in contact; a screw (76) is welded on the iron core (75); the screw (76) and the bottom plate (1) are rotatably connected; the outer side of the screw (76) is connected to a screw barrel (77) by a thread; a connecting plate (78) is welded on the screw barrel (77); the airbag (79) is bonded to the connecting plate (78); the pressure sensor (710) is fixedly mounted on the cover (71); and the metal plate (711) is fixedly mounted on the pressure sensor (710).

2. The high-sensitivity magnetoelectric sensor for vehicle battery monitoring according to claim 1, characterized in that: The fixing mechanism (2) comprises a support (21), a slider (22), a screw (23), a cylinder (24), a slide groove (25), a piston (26), a spring (27), a suction cup (28), a guide pin (29), a guide groove (210), a limit cover (211) and a protrusion (212); the support (21) and the base plate (1) are welded; the slider (22) is slidably connected inside the support (21); the slider (22) and the base plate (1) are in contact; the support (21) is rotatably connected inside the screw (23); the screw (23) and the slider (22) are connected by threads; the slider (22) A cylinder (24) is welded on the support (21), a slide groove (25) is provided on the support (21), the cylinder (24) is slidably connected in the slide groove (25), a piston (26) is slidably connected in the cylinder (24), a spring (27) is arranged in the cylinder (24), a suction cup (28) is fixedly sleeved on the outer side of the cylinder (24), a guide pin (29) is fixedly connected to the piston (26), a guide groove (210) is provided on the side wall of the cylinder (24), a guide pin (29) is slidably connected in the guide groove (210), and a limit cover (211) is connected to the outer side of the cylinder (24) via a thread.

3. The high-sensitivity magnetoelectric sensor for vehicle battery monitoring according to claim 2, characterized in that: One end of the spring (27) is welded to the slider (22), and the other end of the spring (27) is bonded to the piston (26).

4. The high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring according to claim 2, characterized in that: A protrusion (212) is welded on the guide pin (29), and the protrusion (212) is in contact with the limiting cover (211).

5. The high-sensitivity magnetoelectric sensor for vehicle battery monitoring according to claim 1, characterized in that: The heat dissipation mechanism (4) comprises a connecting seat (41), a filter cover (42), a corrugated sleeve (43), a spring piece (44), a connecting rod (45), a support plate (46), a motor (47), a rotating shaft (48), a connecting sleeve (49), a limit pin (410), a support shaft (411), a fan blade (412), a rubber block (413) and a baffle (414); the connecting seat (41) and the housing (3) are welded; the filter cover (42) is slidably sleeved in the connecting seat (41); the filter cover (42) and the housing (3) are in contact; the connecting seat (41) has a spring piece (44) welded in the connecting seat (41); the spring piece (44) and the filter cover (42) are welded; The connecting rod (45) and the housing (3) are welded, a support plate (46) is welded to the connecting rod (45), a motor (47) is fixedly mounted on the support plate (46), a rotating shaft (48) of the motor (47) and the support plate (46) are rotatably connected, a connecting sleeve (49) is slidably sleeved on the outer side of the rotating shaft (48), a supporting shaft (411) is welded to the connecting sleeve (49), a fan blade (412) is welded to the supporting shaft (411), a rubber block (413) is bonded to the fan blade (412), a baffle (414) is welded inside the filter cover (42), and the baffle (414) and the rubber block (413) are in contact.

6. The high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring according to claim 5, characterized in that: A corrugated sleeve (43) is fixedly sleeved on the outside of the connecting seat (41), and a filter cover (42) is fixedly sleeved on the inside of the corrugated sleeve (43).

7. The high-sensitivity magnetoelectric sensor for vehicle-mounted battery monitoring according to claim 5, characterized in that: The side wall of the connecting sleeve (49) is slidably sleeved with a limit pin (410), and the limit pin (410) and the rotating shaft (48) are connected via threads.

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