阅读说明：本技术 一种调速开关 (Speed regulating switch ) 是由 吴世清 于 2020-12-10 设计创作，主要内容包括：一种调速开关,包括带有微处理器的芯片电路,还包括中空外壳、电路板、调速组件、线性霍尔元件、磁控干簧管,调速组件包括调速杆、回弹件,调速杆伸入端朝向线性霍尔元件的一侧上设有带N极磁钢和S极磁钢的调速区,外壳内装有两层间隔设置的抗磁层,电路板周身涂有三防漆层且固定设于两层抗磁层之间,调速杆与线性霍尔元件位于电路板同一侧且位于两层抗磁层之间,当外力作用于调速杆,调速杆在回弹件的作用下于外壳内相对于线性霍尔元件发生往复式位移,调速区靠近干簧管后,干簧管感应N极磁钢和S极磁钢之间产生的磁场产生模拟信号并输送至芯片电路的微处理器进而打开开关。本设计具有防水防尘、防误触发、结构精简、工作寿命长的优点。(A speed regulation switch comprises a chip circuit with a microprocessor, a hollow shell, a circuit board, a speed regulation assembly, a linear Hall element and a magnetic control reed switch, wherein the speed regulation assembly comprises a speed regulation rod and a rebound part, one side of the extending end of the speed regulation rod, which faces the linear Hall element, is provided with a speed regulation area with N-pole magnetic steel and S-pole magnetic steel, two anti-magnetic layers which are arranged at intervals are arranged in the shell, the whole body of the circuit board is coated with a three-proofing paint layer and is fixedly arranged between the two anti-magnetic layers, the speed regulation rod and the linear Hall element are positioned at the same side of the circuit board and are positioned between the two, when external force acts on the speed adjusting rod, the speed adjusting rod generates reciprocating displacement relative to the linear Hall element in the shell under the action of the rebound piece, after the speed adjusting area is close to the reed pipe, the reed switch senses a magnetic field generated between the N-pole magnetic steel and the S-pole magnetic steel to generate an analog signal, and the analog signal is transmitted to a microprocessor of the chip circuit to turn on the switch. The design has the advantages of water and dust prevention, false triggering prevention, simple structure and long service life.)

1. A speed regulation switch comprises a chip circuit with a microprocessor, and is characterized in that: the magnetic control dry reed switch is characterized by further comprising a hollow shell (1), a circuit board (2) which is arranged in the shell (1) and is connected with a circuit, a speed regulating assembly matched with the shell (1), a linear Hall element (3) fixedly arranged on the circuit surface of the circuit board (2), and a magnetic control dry reed switch (6) fixedly arranged on the circuit surface of the circuit board (2), wherein the speed regulating assembly comprises a speed regulating rod (5) which extends into the shell (1) and is partially positioned outside the shell (1) and a rebound piece which is fixedly connected with the end of the speed regulating rod (5) and is fixedly arranged in the shell (1), one side of the end of the speed regulating rod (5) extending into the linear Hall element (3) is provided with a speed regulating area with N-pole magnetic steel (16) and S-pole magnetic steel (17), two anti-magnetic layers (18) which are arranged at intervals are arranged in the shell (1), the whole body of the circuit board (2) is coated with a three-proofing paint layer and, the speed adjusting rod (5) and the linear Hall element (3) are positioned on the same side of the circuit board (2) and positioned between two layers of diamagnetic layers (18), when an external force acts on the speed adjusting rod (5), the speed adjusting rod (5) generates reciprocating displacement relative to the linear Hall element (3) in the shell (1) under the action of the rebounding piece, after the speed adjusting area is close to the reed pipe (6), the reed pipe (6) induces the magnetic field generated between the N-pole magnetic steel (16) and the S-pole magnetic steel (17) to generate an analog signal and transmits the analog signal to a microprocessor of a chip circuit so as to open a switch, after the switch is opened, the linear Hall element (3) induces the magnetic field strength between the N-pole magnetic steel (16) and the S-pole magnetic steel (17) penetrating through the linear Hall element (3) and outputs corresponding Hall voltage, and after the speed adjusting area is far away from the reed pipe (6), the reed pipe (6) cannot induce the magnetic field generated between the N-pole magnetic steel (16) and the S-pole magnetic steel .

2. A speed regulating switch according to claim 1, wherein: still include the switching-over subassembly, the switching-over subassembly includes dials handle (8) with shell (1) rotationally the complex, locate in shell (1) and with dial handle (8) fixed connection's transmission handle (9), fixed magnetic field generation element (10) of locating on transmission handle (9), it is equipped with switching-over hall element (7) to correspond magnetic field generation element (10) fixed position on circuit board (2), when external force is stirred and is dialled handle (8), dials magnetic field generation element (10) that handle (8) drove on transmission handle (9) and is close to switching-over hall element (7) of locating on circuit board (2), switching-over hall element (7) carry out the just reversing of switch through the magnetic field intensity that the response passed switching-over hall element (7).

3. A speed regulating switch according to claim 1 or 2, characterized in that: the reed switch (6) is fixedly arranged on the circuit surface of the circuit board (2) through UV glue.

4. A speed regulating switch according to claim 1 or 2, characterized in that: the speed governing district is opened there is an I-shaped groove, N utmost point magnet steel (16) and S utmost point magnet steel (17) and the worker shape fitting piece fixed connection who locates the I-shaped inslot and then slide in speed governing district surface along the I-shaped notch, worker shape groove one side still is equipped with the spout, be equipped with respectively in the spout with N utmost point magnet steel (16) and S utmost point magnet steel (17) fixed connection' S retaining member, the regulation of interval between N utmost point magnet steel (16) and S utmost point magnet steel (17) is realized to the slip of retaining member in the spout, through the tight cooperation of clamp of retaining member and spout notch, realizes that N utmost point magnet steel (16) and S utmost point magnet steel (17) are fixed spacing.

5. A speed regulating switch according to claim 3, wherein: the speed governing district is opened there is an I-shaped groove, N utmost point magnet steel (16) and S utmost point magnet steel (17) and the worker shape fitting piece fixed connection who locates the I-shaped inslot and then slide in speed governing district surface along the I-shaped notch, worker shape groove one side still is equipped with the spout, be equipped with respectively in the spout with N utmost point magnet steel (16) and S utmost point magnet steel (17) fixed connection' S retaining member, the regulation of interval between N utmost point magnet steel (16) and S utmost point magnet steel (17) is realized to the slip of retaining member in the spout, through the tight cooperation of clamp of retaining member and spout notch, realizes that N utmost point magnet steel (16) and S utmost point magnet steel (17) are fixed spacing.

6. A speed regulating switch according to claim 1, 2 or 5, characterised in that: and the inner walls of the shell (1) are all attached with diamagnetic layers (18).

7. A speed regulating switch according to claim 3, wherein: and the inner walls of the shell (1) are all attached with diamagnetic layers (18).

8. A speed regulating switch according to claim 4, wherein: and the inner walls of the shell (1) are all attached with diamagnetic layers (18).

Technical Field

The invention relates to a switch, in particular to a speed regulation switch applied to various tool equipment needing speed regulation.

Background

Reed switches are increasingly used in a variety of switches because of their advantages such as simple structure, small size, long life, etc. On the one hand, in some current switches, most switches are closed and then open the switch through the touching of switch on spare part, and in the application environment of switch, dust and water all can all exert an influence to the touching of switch after getting into the switch, and serious even can lead to the switch to break down and be difficult to overhaul the maintenance. On the other hand, in the switch of the prior application reed switch, because the reed switch is sensitive, objects which can generate magnetic fields such as permanent magnets are easy to open when approaching, and then the overall switch is triggered by mistake, in some equipment with fast rotating speed and danger, certain influence can be brought to the equipment after being triggered by mistake, and personal injury can be caused to operators seriously or even possibly.

Disclosure of Invention

The invention aims to provide a speed regulating switch which is waterproof, dustproof, error-triggering-proof, simple in structure and long in service life.

In order to solve the technical problems, the invention adopts the following technical scheme: a speed regulation switch comprises a chip circuit with a microprocessor, a hollow shell, a circuit board arranged in the shell and connected with the circuit, a speed regulation component matched with the shell, a linear Hall element fixedly arranged on the circuit surface of the circuit board, and a magnetic control reed switch fixedly arranged on the circuit surface of the circuit board, wherein the speed regulation component comprises a speed regulation rod with an extending end extending into the shell and a part positioned outside the shell, and a rebound part fixedly connected with the extending end of the speed regulation rod and fixedly arranged in the shell, one side of the extending end of the speed regulation rod, facing the linear Hall element, is provided with a speed regulation area with N-pole magnetic steel and S-pole magnetic steel, two anti-magnetic layers arranged at intervals are arranged in the shell, the whole body of the circuit board is coated with a paint layer and is fixedly arranged between the two anti-magnetic layers, the speed regulation rod and the linear Hall element are positioned on the circuit board and positioned between the same side of the two anti-magnetic layers, the speed regulating rod is in the shell and takes place reciprocating type displacement for linear hall element under the effect of resilience piece, after the speed governing district is close to the tongue tube, the magnetic field that produces between the reed tube response N utmost point magnet steel and the S utmost point magnet steel produces analog signal and carries to the microprocessor of chip circuit and then opens the switch, after the switch was opened, linear hall element response passes the magnetic field intensity between the N utmost point magnet steel of linear hall element and the S utmost point magnet steel and output corresponding hall voltage, after the tongue tube was kept away from in the speed governing district, the reed tube can't respond to the magnetic field that produces between N utmost point magnet steel and the S utmost point magnet steel and produce analog signal and then the switch closes.

Further, still include the switching-over subassembly, the switching-over subassembly include with the shell rotationally the complex dial the handle, locate in the shell and with dial handle fixed connection's transmission handle, the fixed magnetic field that locates on the transmission handle and take place the component, it is equipped with switching-over hall element to correspond magnetic field emergence component fixed position on the circuit board, when external force is stirred and is dialled the handle, dials the magnetic field that the handle drove on the transmission handle and takes place the component and be close to the switching-over hall element who locates on the circuit board, switching-over hall element passes the magnetic field intensity of switching-over hall element through the response and carries out the positive reverse.

Furthermore, the reed switch is fixedly arranged on the circuit board circuit surface through UV glue.

Further, it has an worker 'S shape groove to open in the speed governing district, N utmost point magnet steel and S utmost point magnet steel and the worker' S shape fitting piece fixed connection who locates the worker 'S shape inslot and then slide in speed governing district surface along the worker' S shape notch, worker shape groove one side still is equipped with the spout, be equipped with respectively in the spout with N utmost point magnet steel and S utmost point magnet steel fixed connection 'S retaining member, the retaining member slides in the spout, realizes the regulation to interval between N utmost point magnet steel and the S utmost point magnet steel, through the tight cooperation of clamp of retaining member and spout notch, realizes that N utmost point magnet steel and S utmost point magnet steel' S is fixed spacing.

Furthermore, the inner wall of the shell is attached with a diamagnetic layer.

The invention has the beneficial effects that: the invention controls the reed switch to output analog signals to open and close the switch through the magnetic field generated between the N-pole magnetic steel and the S-pole magnetic steel, simultaneously, the linear Hall voltage is acquired and the speed is regulated through the magnetic field intensity of the magnetic field sensed by the linear Hall element, two magnetic steels generating the magnetic field do not directly contact with the linear Hall element in the process of acquiring the linear Hall voltage by the integral speed regulating switch, the circuit closing relation of mechanical cooperation or contact touch in the prior art does not exist, so the problems of wear and aging and the like in the prior contact type speed regulating switch after multiple times of touch friction do not occur, the problem of wear and aging of parts of the prior contact type speed regulating switch caused by multiple times of switching of the contact friction is overcome, the working performance and the working life of the integral speed regulating switch are greatly improved, the use cost is saved, and meanwhile, the coating of a three, the integral speed regulating switch has better dustproof and waterproof performance by matching with the circuit closing mode without contact relation, even if dust or water enters the switch and even contacts with the circuit board, the circuit board can not be conducted or even burnt, and the normal opening and closing speed regulation of the switch is not influenced, on the other hand, the diamagnetic layers arranged in the switch and corresponding to the upper surface and the lower surface of the circuit board effectively prevent objects which can generate magnetic fields, such as permanent magnets and the like outside the switch, from approaching, the magnetic field outside the switch penetrates through the switch shell to enter the switch, and then the reed switch is triggered by mistake to output a false-triggered analog signal, so that the false-triggering of the integral speed regulating switch is caused by opening the switch, the speed regulating switch after shielding the magnetic field outside the switch shell is safer and more reliable than the existing switch and is not easy to be triggered by mistake and is not interfered by the external magnetic field of the switch shell, and the two, the linear Hall voltage acquisition and speed regulation device is also used for acquiring and regulating the linear Hall voltage, the application of a group of magnetic steels is reduced, the design of sharing a group of magnetic steels not only reduces the application of the magnetic steels and the application cost, but also simplifies the structure of the whole speed regulation switch, and is convenient for the miniaturization and the rational structure design of the switch.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a speed regulation switch.

Fig. 2 is a schematic structural diagram of the speed regulating switch with a part of the outer shell removed.

Fig. 3 is a state structure diagram when the speed regulation switch obtains the maximum linear hall voltage.

Fig. 4 is a schematic diagram of a partial explosion structure of the speed regulating switch.

Fig. 5 is a schematic diagram of the matching state of the speed regulation area and the linear hall element.

Fig. 6 is a schematic diagram of a state in which the magnetic field generating element is away from the commutating hall element.

Fig. 7 is a schematic diagram of a state in which the magnetic field generating element is close to the commutating hall element.

Detailed Description

In order to make the technical means, innovative features and functions of the present invention easy to understand, the present invention will be further described below.

As shown in fig. 1-7, the technical solution of the speed-regulating switch of the present invention comprises a chip circuit with a microprocessor, further comprising a hollow housing 1, a circuit board 2 disposed in the housing 1 and connected to the circuit, a speed-regulating assembly engaged with the housing 1, a linear hall element 3 fixedly disposed on the circuit surface of the circuit board 2, and a magnetic control reed switch 6 fixedly disposed on the circuit surface of the circuit board 2, wherein the speed-regulating assembly comprises a speed-regulating rod 5 having an insertion end extending into the housing 1 and a part located outside the housing 1, and a resilient member fixedly connected to the insertion end of the speed-regulating rod 5 and fixedly disposed in the housing 1, a speed-regulating region having N-pole magnetic steel 16 and S-pole magnetic steel 17 is disposed on one side of the insertion end of the speed-regulating rod 5 facing the linear hall element 3, two layers of anti-magnetic layers 18 disposed at intervals are disposed in the housing 1, a three-proofing paint layer is coated on the periphery of the circuit board, the speed adjusting rod 5 and the linear Hall element 3 are located on the same side of the circuit board 2 and located between the two anti-magnetic layers 18, when an external force acts on the speed adjusting rod 5, the speed adjusting rod 5 is in reciprocating displacement relative to the linear Hall element 3 in the shell 1 under the action of the rebounding piece, after the speed adjusting area is close to the reed pipe 6, the reed pipe 6 induces a magnetic field generated between the N-pole magnetic steel 16 and the S-pole magnetic steel 17 to generate an analog signal and transmits the analog signal to a microprocessor of a chip circuit so as to turn on a switch, after the switch is turned on, the linear Hall element 3 induces the magnetic field strength between the N-pole magnetic steel 16 and the S-pole magnetic steel 17 penetrating through the linear Hall element 3 and outputs corresponding Hall voltage, and after the speed adjusting area is far away from the reed pipe 6, the reed pipe 6 cannot induce the magnetic field generated between the N-pole magnetic steel 16 and the S-. In the technical scheme, the magnetic fields generated by the N-pole magnetic steel 16 and the S-pole magnetic steel 17 partially destroy the interference magnetic field close to the switch shell 1 in the normal use process of the switch, so that the integral switch needs a stronger magnetic field to be close to the possibility of mistakenly triggering the switch, the difficulty and the threshold value of the mistakenly triggered integral switch are improved under the condition of not influencing the normal sensitivity of the switch, the function of part of auxiliary diamagnetic layers 18 for resisting the magnetic shielding interference magnetic field is achieved, and the anti-interference performance of the integral speed regulating switch is improved.

As shown in fig. 2 and fig. 3, in the practical application process, the speed regulating switch still has the requirement of forward and reverse rotation and commutation, and further comprises a commutation component, wherein the commutation component comprises a dial handle 8 rotatably matched with the housing 1, a transmission handle 9 arranged in the housing 1 and fixedly connected with the dial handle 8, and a magnetic field generating element 10 fixedly arranged on the transmission handle 9, a commutation hall element 7 is fixedly arranged on the circuit board 2 corresponding to the magnetic field generating element 10, when the dial handle 8 is toggled by external force, the dial handle 8 drives the magnetic field generating element 10 on the transmission handle 9 to be close to the commutation hall element 7 arranged on the circuit board 2, and the commutation hall element 7 performs forward and reverse rotation and commutation of the switch by sensing the magnetic field intensity passing through the commutation hall element 7.

Because the reed switch 6 needs to be stably positioned on the circuit board for a long time to work, in one embodiment of the invention, the reed switch 6 is fixedly arranged on the circuit surface of the circuit board 2 through UV glue, the design improves the shock-proof and shake-proof performance of the reed switch 6, the installation of the reed switch 6 is firmer and more reliable, and the reed switch 6 is difficult to damage even if the speed regulation switch is dropped and the like.

In the practical application process, on one hand, because the distance between the upper surface and the lower surface of the circuit board 2 relative to the reed switch 6 is smaller, the magnetic field close to the whole switch in the direction of the upper surface and the lower surface of the circuit board 2 is easier to trigger the speed regulating switch by mistake, so the demand of the antimagnetic shielding magnetic field of the upper surface and the lower surface of the circuit board 2 is higher, on the other hand, the cost of the raw materials of the antimagnetic shielding material is extremely high, the requirement of the antimagnetic shielding magnetic field is met, and in order to reduce the application cost, in the above technical scheme, the antimagnetic layer 18 of the antimagnetic shielding is designed in the direction of the upper surface and the lower surface of the circuit board 2, and in some equipment switches with higher use precision requirements, the zero false triggering of the whole switch is ensured while the accurate opening and closing of the switch is ensured, so in the practical application process, the antimagnetic layer 18 is attached to the inner, the interference magnetic field in the shell 1 is completely shielded without dead angles, the switch is prevented from being triggered by mistake after the external magnetic field of the shell 1 is close to the switch, the influence on equipment after the trigger by mistake is avoided, and the zero trigger by mistake of the whole switch is realized. Of course, the direct design of the housing 1 can also be performed by applying the antimagnetic shielding material, thereby reducing the application of raw materials and reducing part of the application cost.

As shown in fig. 4 and 5, in order to enhance the magnetic field intensity sensed by the linear hall element 3 and improve the sensitivity of the linear speed regulation of the speed regulation switch, the surface of the speed regulation area is parallel to the surface of the linear hall element 3, the linear hall element 3 is arranged on the circuit board 2 corresponding to the speed regulation area, and the design of the linear hall element 3 between the surface of the speed regulation area and the circuit board 2 enables the speed regulation component to more conveniently move relative to the linear hall element 3, so that the magnetic field intensity sensed by the linear hall element 3 changes more greatly, and a complete hall voltage change curve is conveniently obtained.

Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.