Electrostatic isolation magnetic control switch assembly and magnetic control type electric control switch

Abstract

The utility model provides an electrostatic isolation magnetic control switch assembly and a magnetic control type electric control switch, which belong to the technical field of switches, and comprise a coil framework, a coil is wound on the coil framework, a mounting channel is arranged on the coil framework along the axial direction of the coil, a reed switch is arranged in the mounting channel, the coil comprises a power connection end, and the power connection end is connected with the reed switch. The reed switch has a connected state and a disconnected state and realizes state switching under the action of the magnetic field of the coil, an anti-static cylinder is arranged between the coil framework and the reed switch, and the anti-static cylinder is provided with a grounding end; according to the utility model, static electricity generated when the coil is powered on is grounded through the anti-static cylinder, thereby preventing the static electricity from damaging the internal reed switch, and enabling the withstand voltage value of the magnetic control switch assembly to be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to an electrostatically isolated magnetically controlled switch component and a magnetically controlled electric switch. Background Art

[0002] Electronic switches are used to control the opening and closing of high-power or high-voltage circuits. They are often used in situations that require remote control or automated control, such as home automation, industrial control systems, power systems, and communication equipment. With the development of electronic technology, electronic switches play an increasingly important role in achieving more intelligent and automated circuit designs. At the same time, future electronic switches will develop in the direction of being smaller, more economical, and more intelligent.

[0003] The electromagnetic electric switch is a commonly used electric switch, usually used in automated control circuits. It generally includes a magnetic switch assembly, which includes a magnetic switch and a coil. The coil in a traditional magnetic switch assembly is prone to generate static electricity when powered on, which will damage the magnetic switch and cause the withstand voltage of the switch to become lower. The withstand voltage is an important criterion for measuring the quality of a magnetic switch. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide an electrostatically isolated magnetically controlled switch component and a magnetically controlled electric switch.

[0005] The technical solution adopted by the utility model is as follows: an electrostatically isolated magnetically controlled switch component, comprising a coil frame, a coil is wound on the coil frame, and an installation channel is arranged on the coil frame along the axial direction of the coil, a reed switch is arranged in the installation channel, the coil comprises a power connection end, the reed switch has a connected state and a disconnected state, and it realizes state switching under the action of the coil magnetic field, an anti-static cylinder is arranged between the coil frame and the reed switch, and the anti-static cylinder is provided with a grounding end.

[0006] It is further configured that there are at least two reed switches, which are evenly distributed along the circumference of the installation channel.

[0007] The coil skeleton includes an upper plate portion, a middle cylinder portion and a lower plate portion, the coil is wound on the middle cylinder portion, the anti-static cylinder includes an upper cylinder portion, a middle plate portion and a lower cylinder portion, the outer diameter of the lower cylinder portion is smaller than the inner diameter of the installation channel, the outer diameter of the middle plate portion is larger than the inner diameter of the installation channel, and the lower cylinder portion is inserted into the installation channel.

[0008] It is further configured that the axial length of the lower cylinder portion is not less than the axial length of the installation channel.

[0009] It is further configured that at least two connecting columns are spaced apart on two opposite sides of the upper plate portion.

[0010] It is further configured that wiring grooves for the power terminals to pass through are provided on both sides of the middle cylinder portion on the lower plate portion.

[0011] It is further configured as a magnetically controlled electric switch, including the electrostatically isolated magnetic touch switch assembly, a circuit frame made of a PCB board is arranged outside the coil skeleton, and a connecting circuit is printed on it, the reed switch includes a reed, and the reed and the power connection end are both connected to the circuit frame, and the circuit frame extends downward to have a connecting end corresponding to the reed and the power connection end.

[0012] It is further configured that the upper end of the antistatic tube is connected to the circuit frame, the grounding end is a grounding plug arranged on the bottom plate of the circuit frame, and the grounding plug is extended downward.

[0013] It is further configured that connecting holes for connecting columns to be inserted are provided on both side plates of the circuit frame.

[0014] It is further configured to include two wiring pins, the wiring pins include a first connection part connected to the lower plate part, a second connection part connected to the side plate of the circuit frame, and a wiring part, and the power connection end of the coil is connected to the wiring part along the wiring groove.

[0015] The beneficial effects of the utility model are as follows: in the utility model, the static electricity generated when the coil is powered on is grounded through the anti-static tube, so as to prevent the static electricity from damaging the internal reed switch, thereby improving the withstand voltage value of the magnetic control switch component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0017] Figure 1 For the first embodiment Figure 1 ;

[0018] Figure 2 For the first embodiment Figure 2 ;

[0019] Figure 3 It is a partial cross-sectional view of the first embodiment;

[0020] Figure 4 For the first embodiment Figure 3 ;

[0021] Figure 5 This is a schematic diagram of Embodiment 2 (housing is not shown);

[0022] Figure 6 It is a partial schematic diagram of the second embodiment. DETAILED DESCRIPTION

[0023] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0024] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In the description of this application, it should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0027] Embodiment 1:

[0028] like Figures 1 to 4As shown, an electrostatically isolated magnetically controlled switch assembly includes a coil skeleton 1, a coil 2 is wound on the coil skeleton 1, and an installation channel 3 is arranged on the coil skeleton 1 along the axial direction of the coil 2, a reed switch 4 is arranged in the installation channel 3, the coil 2 includes a power connection end, the reed switch 4 has a connected state and a disconnected state, and it realizes state switching under the action of the magnetic field of the coil 2, an anti-static tube 5 is arranged between the coil skeleton 1 and the reed switch 4, the anti-static tube 5 is made of conductive material, and the anti-static tube 5 is provided with a grounding terminal 6, the static electricity generated when the coil 2 is powered on is grounded through the anti-static tube 5, so as to avoid static electricity from damaging the internal reed switch, thereby improving the withstand voltage value of the magnetically controlled switch assembly.

[0029] Furthermore, there are at least two reed switches 4, and they are evenly distributed along the circumference of the installation channel 3. In the present embodiment, four reed switches 4 are evenly arranged circumferentially in the installation channel 3, and four circuits can be controlled simultaneously. The reed switches 4 are evenly distributed, which ensures the consistency of the action of each reed switch 4, and also helps to reduce the impact of electromagnetic interference and improve electromagnetic compatibility.

[0030] Secondly, the above arrangement is particularly suitable for controlling multi-circuit circuits, which can not only greatly reduce the overall volume of the switch assembly and reduce the cost of the product, but also has the characteristics of simple structure, fast switching speed, and long electrical life of the contacts.

[0031] Furthermore, the coil skeleton 1 includes an upper plate portion 101 , a middle cylinder portion 102 and a lower plate portion 103 , and the coil 2 is wound on the middle cylinder portion 102 , which helps to maintain the stability of the coil 2 and reduce displacement of the coil 2 due to vibration or other external forces.

[0032] The antistatic cylinder 5 includes an upper cylinder portion 51, a middle plate portion 52 and a lower cylinder portion 53. The outer diameter of the lower cylinder portion 53 is smaller than the inner diameter of the installation channel 3, and the outer diameter of the middle plate portion 52 is larger than the inner diameter of the installation channel 3. During assembly, it is only necessary to insert the lower cylinder portion 53 into the installation channel 3, and the middle plate portion 52 will abut against the upper plate portion 101 to form a one-side limit.

[0033] Furthermore, the axial length of the lower cylindrical portion 53 is not less than the axial length of the installation channel 3, which effectively protects the reed switch 4 in the coil 2 and significantly improves the stability and reliability of the switch assembly.

[0034] Furthermore, at least two connecting posts 104 are spaced apart on both opposite sides of the upper plate portion 101 . In the present embodiment, two connecting posts 104 are provided, and the connecting posts 104 are used to fix the coil frame 1 .

[0035] Furthermore, wiring grooves 105 for the power terminals to pass through are provided on both sides of the middle cylinder 102 on the lower plate 103 , so that the wiring of the coil 2 is more neat and the wiring difficulty is reduced.

[0036] Embodiment 2:

[0037] like Figure 5 and Figure 6 As shown, based on the first embodiment, a magnetically controlled electric switch is proposed, including the electrostatically isolated magnetic touch switch assembly described in the first embodiment, and the coil skeleton 1 is provided with a circuit frame 7 made of a PCB board, and a connected circuit is printed on it. By printing a connected circuit on the circuit frame 7 to replace the traditional wiring method, the wiring inside the product can be omitted, which is conducive to the miniaturization of the relay, and it is more convenient to install the functional module on the circuit frame, which is conducive to the realization of diversified product functions. Among them, the circuit frame 7 can be composed of multiple PCB boards.

[0038] The reed switch 4 includes a reed 41. The conventional reed switch 4 includes a normally open type, a normally closed type and a conversion type. In the present embodiment, the reed 41 includes a normally open contact, a normally closed contact and a common end contact.

[0039] The spring piece 41 and the power connection end are both connected to the circuit frame 7. The circuit frame 7 extends downward to have a connection end 9 corresponding to the spring piece 41 and the power connection end. The connection end 9 is uniformly led out on one side through the circuit frame 7, which is more convenient for external connection.

[0040] Furthermore, the upper end of the anti-static tube 5 is connected to the circuit frame 7, and the middle plate portion 52 is abutted against the upper plate portion 101, so that the anti-static tube 5 can be relatively fixed. The grounding end 6 is a grounding plug arranged on the bottom plate of the circuit frame 7, and the grounding plug is extended downward, and the grounding end 6 of the anti-static tube 5 is led out through the circuit frame 7, thereby avoiding the transmission wiring method and making the interior of the electric control switch more neat.

[0041] Furthermore, connecting holes 71 for inserting the connecting posts 104 are provided on both side plates of the circuit frame 7 , and the coil skeleton 1 and the circuit frame 7 can be fixed by welding the connecting posts 104 to the connecting holes 71 .

[0042] Furthermore, two connection pins 8 are included, and the connection pins 8 include a first connection part 81 connected to the lower plate part 103, a second connection part 82 connected to the side plate of the circuit frame 7, and a connection part 83. The power connection end of the coil 2 is connected to the connection part 83 along the wiring groove 105, so that the connection of the coil 2 is more neat and the connection difficulty is reduced.

[0043] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An electrostatically isolated magnetically controlled switch assembly, characterized in that: The invention comprises a coil frame (1), a coil (2) is wound on the coil frame (1), and a mounting channel (3) is arranged on the coil frame along the axial direction of the coil (2), a reed switch (4) is arranged in the mounting channel (3), the coil (2) comprises an electrical connection end, the reed switch (4) has a connected state and a disconnected state, and the state is switched under the action of the magnetic field of the coil (2), an antistatic tube (5) is arranged between the coil frame (1) and the reed switch (4), and the antistatic tube (5) is provided with a grounding end (6).

2. The electrostatically isolated magnetically controlled switch assembly according to claim 1, characterized in that: There are at least two reed switches (4), which are evenly distributed along the circumference of the installation channel (3).

3. The electrostatically isolated magnetically controlled switch assembly according to claim 1 or 2, characterized in that: The coil skeleton (1) comprises an upper plate portion (101), a middle cylinder portion (102) and a lower plate portion (103); the coil (2) is wound on the middle cylinder portion (102); the antistatic cylinder (5) comprises an upper cylinder portion (51), a middle plate portion (52) and a lower cylinder portion (53); the outer diameter of the lower cylinder portion (53) is smaller than the inner diameter of the installation channel (3); the outer diameter of the middle plate portion (52) is larger than the inner diameter of the installation channel (3); and the lower cylinder portion (53) is inserted into the installation channel (3).

4. The electrostatically isolated magnetically controlled switch assembly according to claim 3, characterized in that: The axial length of the lower barrel portion (53) is not less than the axial length of the installation channel (3).

5. The electrostatically isolated magnetically controlled switch assembly according to claim 3, characterized in that: At least two connecting columns (104) are arranged at intervals on two opposite sides of the upper plate portion (101).

6. The electrostatically isolated magnetically controlled switch assembly according to claim 3, characterized in that: The lower plate portion (103) is provided with wiring grooves (105) on both sides of the middle cylinder portion (102) for the power terminals to pass through.

7. A magnetically controlled electric switch, comprising the electrostatically isolated magnetic touch switch assembly according to any one of claims 1 to 6, characterized in that: A circuit frame (7) made of a PCB board is arranged outside the coil skeleton (1) and has connected circuits printed thereon. The reed switch (4) includes a reed leaf (41). The reed leaf (41) and the power connection end are both connected to the circuit frame (7). The circuit frame (7) has a connection end (9) extending downwards and corresponding to the reed leaf (41) and the power connection end.

8. The magnetically controlled electric switch according to claim 7, characterized in that: The upper end of the antistatic tube (5) is connected to the circuit frame (7), and the grounding end (6) is a grounding plug arranged on the bottom plate of the circuit frame (7), and the grounding plug is extended downward.

9. The magnetically controlled electric switch according to claim 7, characterized in that: The two side plates of the circuit frame (7) are provided with connection holes (71) for the connection columns (104) to be inserted.

10. The magnetically controlled electric switch according to claim 7, characterized in that: It also includes two wiring pins (8), the wiring pins (8) including a first connection portion (81) connected to the lower plate portion (103), a second connection portion (82) connected to the side plate of the circuit frame (7), and a wiring portion (83), and the power connection end of the coil (2) is connected to the wiring portion (83) along the wiring groove (105).

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