Inductance switch

Abstract

The inductance switch comprises a PCB, an inductance ring, a base, a pressing handle, a metal inductance rod and an upper cover, the base is installed on the PCB, the upper cover is arranged on the base in a covering mode, an accommodating space is formed by the upper cover and the base, the pressing handle penetrates through the upper cover, extends into the accommodating space and moves up and down along the base, the pressing handle is provided with a center column, the center column is provided with an accommodating cavity with an opening in the bottom end, and the metal inductance rod is arranged in the accommodating cavity. The base is provided with a first through hole, the PCB is provided with a second through hole, the second through hole is located below the first through hole, the PCB is provided with an inductance ring connected with a circuit, the inductance ring surrounds the outer side of the second through hole, the inductance ring and the second through hole are concentric circles, the diameter of the inductance ring is larger than that of the second through hole, the metal inductance rod is provided with an insertion section and an induction section, the insertion section is inserted into the containing cavity, and the induction section is inserted into the containing cavity. And the induction section is in an inverted circular truncated cone shape, penetrates through the first through hole and extends into the second through hole, and the included angle between the generatrix of the induction section and the shaft ranges from 10 degrees to 45 degrees.

Description

TECHNICAL FIELD

[0001] The utility model relates to keyboard switch technical field, in particular to an inductance switch. BACKGROUND

[0002] Computer has been indispensable in modern people's work and life tool, and keyboard is one of the most important input devices of computer, therefore the good and bad of key switch directly determines the use experience of computer. Patent application number: 201920909835.7, the name is magnetic shaft switch and the mechanical keyboard with the magnetic shaft switch, discloses a magnetic shaft switch, including circuit board, the shell that is arranged on the upper of circuit board, the handle that is connected in sliding in the shell, the elastic piece that is contained in the shell and is butt joint handle, the hall element that is electrically connected in circuit board, the magnet that is arranged in the shell and corresponds with hall element, the metal isolation sheet that is arranged between hall element and magnet and can move along with handle, by the sliding of handle to drive the metal isolation sheet moves to change the signal change between hall element and magnet to realize the instantaneous input or cut-off function of switch. But this technical scheme has the problems of being easy to be interfered by environmental magnetism, not sensitive, poor input stability, different step and the like. SUMMARY

[0003] The utility model discloses a kind of inductance switches.

[0004] According to one aspect of the utility model, an inductance switch is provided, including PCB board, inductance ring, base, handle, metal inductance stick and upper cover, base is installed on PCB board, upper cover is covered on base, and forms containing space with base, handle passes through upper cover, extends into containing space, and moves up and down along base, handle is provided with central column, central column is provided with containing cavity with bottom end opening, base is provided with first through-hole, PCB board is provided with second through-hole, second through-hole is below first through-hole, PCB board is provided with inductance ring connected with circuit, inductance ring is around the outside of second through-hole, which is concentric with second through-hole, and its diameter is greater than the diameter of second through-hole, metal inductance stick is provided with insertion section and induction section, insertion section is inserted into containing cavity, and is closely connected with central column, induction section is inverted circular table, which passes through first through-hole, and extends into second through-hole, the included angle between the generatrix of induction section and shaft is 10 ° ~ 45 °.

[0005] In some embodiments, the cross-sectional area of the induction section gradually decreases from the top surface to the bottom surface, and the diameter of the second through-hole is the same as the diameter of the top surface of the induction section.

[0006] In some embodiments, the base is symmetrically provided with a first clamping groove and a second clamping groove, the upper cover is symmetrically provided with a first recess and a second recess, the first clamping groove is fitted into the first recess and corresponds in position and shape to the first recess, and the second clamping groove is fitted into the second recess and corresponds in position and shape to the second recess.

[0007] In some embodiments, the pressing part and the clamping part are integrally connected, the upper cover is further provided with a square hole, the pressing part extends above the square hole, the clamping part is located below the square hole, and the first recess and the second recess are symmetrically distributed on two sides of the square hole.

[0008] In some embodiments, the clamping part is symmetrically provided with a first clamping column and a second clamping column, the first clamping column is correspondingly clamped into the first clamping groove, the second clamping column is correspondingly clamped into the second clamping groove, and the first clamping column and the second clamping column are respectively moved up and down along the first clamping groove and the second clamping groove.

[0009] In some embodiments, the utility model further includes a light guide column, the base is further provided with a square groove, the square groove is located at one side of the containing space, the upper cover is provided with a gap, the gap is located above the square groove, and the light guide column is clamped into the gap and the square groove from top to bottom.

[0010] In some embodiments, the utility model further includes a spring, the spring is sleeved outside the central column and the metal inductance rod and located in the containing space, one end of the spring abuts against the pressing part, and the other end abuts against the base.

[0011] In some embodiments, the utility model further includes a switch fixing plate, the base is further provided with a boss and a spring-loaded clamping pin, the boss is located above the clamping pin, and the switch fixing plate is sleeved outside the base and clamped between the boss and the clamping pin.

[0012] The utility model discloses a kind of inductance switches, including base, upper cover, central column, metal inductance rod, spring, pressing part and clamping part, the base is provided with containing space, the upper cover is provided with first recess and second recess, the central column is integrally connected with the metal inductance rod, the spring is sleeved outside the central column and the metal inductance rod, the pressing part is integrally connected with the central column, and the clamping part is integrally connected with the central column. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an explosion view of a kind of inductance switch of one embodiment of the utility model.

[0014] Figure 2 It is a structure schematic view of a kind of inductance switch of one embodiment of the utility model

[0015] Figure 3 It is a structure schematic view of the pressing part of a kind of inductance switch of one embodiment of the utility model.

[0016] Figure 4 It is a top view of the base of a kind of inductance switch of one embodiment of the utility model.

[0017] Figure 5A structure schematic view of a metal inductance rod of an inductance switch according to an embodiment of the present utility model.

[0018] Figure 6 A bottom view of an upper cover of an inductance switch according to an embodiment of the present utility model.

[0019] Figure 7 A structure schematic view of a PCB board of an inductance switch according to an embodiment of the present utility model.

[0020] Figure 8 A sectional view of an inductance switch according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0021] The present utility model will be further explained in detail in combination with embodiments.

[0022] REFERENCE Figures 1-8 The present utility model provides an inductance switch, which comprises a PCB board 1, a base 3, a press handle 4, a metal inductance rod 5, an upper cover 6, a light guide column 7, a spring 8 and a switch fixing plate 9.

[0023] The PCB board 1 is provided with a second through hole 11 and an inductance ring 2, the inductance ring 2 is wrapped on the outside of the second through hole 11 and is concentric with the second through hole 11, and the diameter of the inductance ring 2 is greater than the diameter of the second through hole 11. The inductance ring 2 is an inductance coil and is connected with the circuit on the PCB board 1.

[0024] The base 3 is provided with a first through hole 31, a first clamping groove 32, a second clamping groove 33, a square groove 34, a boss 35 and a springable clamping pin 36. The base 3 is installed on the PCB board 1, and the first through hole 31 is located directly above the second through hole 11. The position and shape of the first clamping groove 32 correspond to the first recess 61 and are clamped into the first recess 61. The position and shape of the second clamping groove 33 correspond to the second recess 62 and are clamped into the second recess 62. The clamping pin 36 is located on the side surface of the base 3, and the boss 35 is located above the clamping pin 36. The switch fixing plate 9 is sleeved on the outside of the base 3 and is clamped between the boss 35 and the clamping pin 36. The square groove 34 is located on one side of the containing space 38.

[0025] The upper cover 6 is provided with a first recess 61, a second recess 62, a square hole 63 and a notch 64, and the first recess 61 and the second recess 62 are symmetrically distributed on both sides of the square hole 63. The upper cover 6 is covered on the base 3 and forms the containing space 38 with the base 3. The notch 64 is located above the square groove 34. The light guide column 7 is sequentially clamped into the notch 64 and the square groove 34 from top to bottom.

[0026] The pressing handle 4 is provided with a pressing part 41, a clamping part 42 and a center column 43 which are integrally connected. The pressing handle 4 penetrates through the upper cover 6 and extends into the accommodating space 38. The pressing part 41 extends above the square hole 63, and the clamping part 42 is located below the square hole 63. The center column 43 is located below the pressing part 41, and the top end of the center column 43 is connected to the bottom end of the pressing part 41. The clamping part 42 is symmetrically provided with a first clamping column 44 and a second clamping column 45. The first clamping column 44 is clamped into the first clamping groove 32, and the second clamping column 45 is clamped into the second clamping groove 33. The first clamping column 44 and the second clamping column 45 move up and down along the first clamping groove 32 and the second clamping groove 33, respectively. The center column 43 is located above the first through hole 31, and is provided with an accommodating cavity 46 which is open at the bottom end.

[0027] The metal inductance rod 5 is provided with an insertion section 51 and an inductive section 52. The insertion section 51 is inserted into the accommodating cavity 46 and is tightly connected to the center column 43. The inductive section 52 is in the shape of an inverted circular truncated cone, the bottom end of the inductive section 52 penetrates through the first through hole 31 and extends into the second through hole 11. The angle between the generatrix of the inductive section 52 and the axis is in the range of 10°-45°. The cross-sectional area of the inductive section 52 gradually decreases from the top surface to the bottom surface, and the diameter of the top surface is the same as the diameter of the second through hole 11. The material of the metal inductance rod 5 is an aluminum rod or a copper rod.

[0028] The spring 8 is sleeved outside the center column 43 and the metal inductance rod 5 and is located in the accommodating space 38. One end of the spring 8 abuts against the pressing part 41, and the other end of the spring 8 abuts against the base 3.

[0029] After the embodiment is assembled, in use, the pressing part 41 of the pressing handle 4 is pressed, the pressing handle 4 drives the metal inductive rod 5 to move downward, and the inductive section 52 moves downward and penetrates through the inductance ring 2. Since the inductive section 52 is in the shape of an inverted circular truncated cone, the diameter of the cross section of the inductive section 52 gradually decreases. When the inductive section 52 penetrates through the inductance ring 2, the response electric signal generated by the inductive section 52 changes in strength, thereby accurately and timely recognizing the pressing state of the key and improving the reliability and stability of the key reaction and the key is not easily disturbed by the external environment.

[0030] The above only describes some embodiments of the present application, and for those skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. An inductive switch, characterized in that, The device includes a PCB board, an inductor ring, a base, a handle, a metal inductor rod, and a top cover. The base is mounted on the PCB board, and the top cover is placed on the base, forming a receiving space. The handle passes through the top cover, extends into the receiving space, and moves up and down along the base. The handle has a central post, and the central post has a receiving cavity with an open bottom. The base has a first through hole, and the PCB board has a second through hole located below the first through hole. The PCB board has an inductor ring connected to the circuit, which surrounds the outside of the second through hole and is concentric with it, with a diameter larger than that of the second through hole. The metal inductor rod has an insertion section and a sensing section. The insertion section is inserted into the receiving cavity and tightly connected to the central post. The sensing section is shaped like an inverted frustum, passes through the first through hole, and extends into the second through hole. The angle between the generatrix of the sensing section and its axis ranges from 10° to 45°.

2. An inductive switch according to claim 1, characterized in that, The cross-sectional area of ​​the sensing segment gradually decreases from its top surface to its bottom surface, and the diameter of the second through hole is the same as the diameter of the top surface of the sensing segment.

3. An inductive switch according to claim 1, characterized in that, The base is symmetrically provided with a first slot and a second slot, and the top cover is symmetrically provided with a first groove and a second groove. The first slot is inserted into the first groove and corresponds to the position and shape of the first groove. The second slot is inserted into the second groove and corresponds to the position and shape of the second groove.

4. An inductive switch according to claim 3, characterized in that, The handle is also provided with an integrally connected pressing part and a locking part. The upper cover is also provided with a square hole. The pressing part extends above the square hole, and the locking part is located below the square hole. The first groove and the second groove are symmetrically distributed on both sides of the square hole. The top end of the central column is integrally connected to the bottom end of the pressing part.

5. An inductive switch according to claim 4, characterized in that, The mounting part is symmetrically provided with a first locking post and a second locking post. The first locking post is inserted into the first locking slot, and the second locking post is inserted into the second locking slot. The first locking post and the second locking post move up and down along the first locking slot and the second locking slot, respectively.

6. An inductive switch according to claim 1, characterized in that, It also includes a light guide column, and the base is provided with a square groove located on one side of the receiving space. The upper cover is provided with a notch located above the square groove. The light guide column is inserted into the notch and the square groove from top to bottom.

7. An inductive switch according to claim 4, characterized in that, It also includes a spring, which is sleeved on the outside of the central column and the metal inductor rod and located within the receiving space. One end of the spring abuts against the pressing part, and the other end abuts against the base.

8. An inductive switch according to claim 1, characterized in that, It also includes a switch fixing plate. The base is further provided with a boss and a spring-loaded latch. The boss is located above the latch. The switch fixing plate is sleeved on the outside of the base and is snapped between the boss and the latch.

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