Superconducting membrane switch

Abstract

The utility model discloses a superconductive membrane switch comprising a panel layer, an upper circuit board, an isolation layer and a lower circuit board which are sequentially bonded and fixed from top to bottom, the panel layer is provided with a plurality of button parts, and the edge position of the lower surface of the panel layer is provided with a plurality of positioning projections. A plurality of positioning grooves are formed in the edge of the upper surface of the upper circuit board, the positioning protrusions and the positioning grooves are arranged in a one-to-one correspondence mode, and the positioning protrusions can be tightly matched with the corresponding positioning grooves. According to the utility model, rapid positioning between the panel layer and the upper circuit board can be realized, and the risk of pasting dislocation of the panel layer is reduced, thereby ensuring normal use of the membrane switch.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of membrane switch, especially in a superconducting membrane switch. BACKGROUND

[0002] The superconducting membrane switch is an electronic component based on the characteristics of superconducting material, which realizes efficient and rapid current control and conversion function by using the characteristics of zero resistance and complete magnetic resistance of superconducting material under certain conditions.

[0003] The membrane switch in the related art usually comprises a panel layer, an upper circuit board, an isolation layer and a lower circuit board which are sequentially adhered and fixed from top to bottom, and a plurality of button parts are arranged on the panel layer. When the panel layer of the membrane switch is damaged, the panel layer can be replaced alone by the staff, so as to reduce the maintenance cost.

[0004] However, when the staff replaces the panel layer, whether the panel layer and the upper circuit board are aligned can only be observed by naked eyes, and there is a risk of misalignment of the panel layer, thereby affecting the normal use of the membrane switch, which needs to be improved. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model aims at providing a superconducting membrane switch which can realize positioning between the panel layer and the upper circuit board, reduce the risk of misalignment of the panel layer, and thus ensure the normal use of the membrane switch.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a superconducting membrane switch comprises a panel layer, an upper circuit board, an isolation layer and a lower circuit board which are sequentially adhered and fixed from top to bottom, the panel layer is provided with a plurality of button parts, a plurality of positioning protrusions are arranged at the edge position of the lower surface of the panel layer, a plurality of positioning grooves are arranged at the edge position of the upper surface of the upper circuit board, the plurality of positioning protrusions and the plurality of positioning grooves are arranged one by one in correspondence, and the positioning protrusions can be closely matched with the corresponding positioning grooves.

[0007] Optionally, the plurality of button parts are arranged in a matrix shape, and a positioning bump is arranged on the button part located at the middle position.

[0008] Optionally, the lower surface of the panel layer is provided with a plurality of sealing rings, the plurality of sealing rings and the plurality of button parts are arranged one by one in correspondence, and the plurality of button parts are respectively located at the inner side of the corresponding sealing rings.

[0009] Optionally, the upper surface of the upper circuit board is provided with a plurality of sealing ring grooves, the plurality of sealing ring grooves and the plurality of sealing rings are arranged one by one in correspondence, and the sealing ring is closely matched with the corresponding sealing ring groove.

[0010] Optionally, the upper surface of the panel layer is provided with a transparent protective film.

[0011] Optionally, each of the button parts is respectively provided with a fluorescent ring.

[0012] Optionally, the lower surface of the lower circuit board is provided with a protective layer.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. By the cooperation of the positioning protrusion and the positioning groove, the quick positioning between the panel layer and the upper circuit board is realized, the quick alignment of the panel layer and the upper circuit board is ensured, the quick replacement operation of the panel layer by the staff is facilitated, the risk of the wrong position of the panel layer is reduced, and the normal use of the membrane switch is ensured.

[0015] 2. By the cooperation of the sealing ring and the sealing ring groove, the sealing effect between the button part and the upper circuit board is improved, the use stability of the membrane switch is improved, and the sealing ring and the sealing ring groove also have the positioning capacity, so that the alignment degree of the panel layer and the upper circuit board is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the embodiment.

[0017] Figure 2 It is a sectional view of the embodiment.

[0018] Figure 3 It is Figure 2 the enlarged schematic view of the A area in the embodiment.

[0019] Figure 4 It is Figure 2 the enlarged schematic view of the B area in the embodiment.

[0020] Significant: 1, panel layer, 2, upper circuit board, 3, isolation layer, 4, lower circuit board, 5, button part, 7, protective layer, 8, positioning protrusion, 9, positioning groove, 10, positioning point, 11, sealing ring, 12, sealing ring groove, 13, fluorescent ring. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with the drawings.

[0022] Refer to Figure 1 , Figure 2A superconducting membrane switch includes a panel layer 1, an upper circuit board 2, an insulating layer 3, and a lower circuit board 4, which are sequentially bonded and fixed from top to bottom. The panel layer 1 is provided with multiple button portions 5. A transparent protective film (not shown in the figure) is bonded and fixed to the upper surface of the panel layer 1 to protect the panel layer 1 and the button portions 5 and reduce the risk of discoloration on the button portions 5. At the same time, a protective layer 7 is bonded and fixed to the lower surface of the lower circuit board 4 to protect the lower circuit board 4.

[0023] In this embodiment, the protective film and the protective layer are made of plastic. Of course, other materials may be used in other embodiments, which will not be listed here.

[0024] Reference Figure 2 , Figure 3 Multiple positioning protrusions 8 are integrally formed at the edge of the lower surface of the panel layer 1, and multiple positioning grooves 9 are provided at the edge of the upper surface of the upper circuit board 2. The multiple positioning protrusions 8 and the multiple positioning grooves 9 are provided one-to-one, and the positioning protrusions 8 can be tightly fitted with the corresponding positioning grooves 9.

[0025] This design enables rapid positioning between panel layer 1 and upper circuit board 2, ensuring quick alignment of panel layer 1 and upper circuit board 2. This facilitates quick replacement of panel layer 1 by staff and reduces the risk of misalignment when pasting panel layer 1, thus ensuring the normal operation of the membrane switch.

[0026] Reference Figure 1 Multiple button sections 5 are arranged in a matrix, and the button section 5 located in the middle is provided with a positioning protrusion 10 to increase the ability to find blindly. The staff can quickly find the position of the required button section 5 by touching the position of the positioning protrusion 10, thus improving the usability.

[0027] Reference Figure 2 , Figure 4 The lower surface of the panel layer 1 is integrally formed with multiple sealing rings 11, each corresponding to a multiple button part 5, and each button part 5 is located inside the corresponding sealing ring 11. Meanwhile, the upper surface of the upper circuit board 2 is provided with multiple sealing ring grooves 12, each corresponding to a multiple sealing ring 11, and the sealing ring 11 is tightly fitted with the corresponding sealing ring groove 12.

[0028] The sealing effect between the button part 5 and the upper circuit board 2 is improved by the cooperation of the sealing ring 11 and the sealing ring groove 12, thereby improving the stability of the membrane switch. At the same time, the sealing ring 11 and the sealing ring groove 12 also have positioning capabilities to ensure the alignment of the panel layer 1 and the upper circuit board 2 and reduce the risk of misalignment of the panel layer 1.

[0029] Reference Figure 1 ,Figure 4 A fluorescent ring 13 is arranged on each button part 5, and the fluorescent ring 13 can emit light in a dim environment, so that the staff can quickly find the position of the button part 5 in the dim environment, thereby improving the use stability.

[0030] The specific embodiments are only an interpretation of the utility model, and are not a limitation of the utility model, and a person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A superconducting membrane switch comprising a panel layer (1), an upper circuit board (2), a spacer layer (3) and a lower circuit board (4) fixed in this order from top to bottom, the panel layer (1) being provided with a plurality of button portions (5), characterized in that: The lower surface of the panel layer (1) is provided with a plurality of positioning protrusions (8) at the edge position, the upper surface of the upper circuit board (2) is provided with a plurality of positioning grooves (9) at the edge position, the plurality of positioning protrusions (8) and the plurality of positioning grooves (9) are one-to-one corresponding, and the positioning protrusions (8) can be tightly matched with the corresponding positioning grooves (9).

2. A superconducting thin film switch according to claim 1, wherein: The plurality of button parts (5) are arranged in a matrix shape, and the button part (5) located at the middle position is provided with a positioning bump (10).

3. A superconducting thin film switch according to claim 1, wherein: The lower surface of the panel layer (1) is provided with a plurality of sealing rings (11), the plurality of sealing rings (11) and the plurality of button parts (5) are one-to-one corresponding, and the plurality of button parts (5) are respectively located at the inner side of the corresponding sealing ring (11).

4. A superconducting thin film switch according to claim 3, wherein: The upper surface of the upper circuit board (2) is provided with a plurality of sealing ring grooves (12), the plurality of sealing ring grooves (12) and the plurality of sealing rings (11) are one-to-one corresponding, and the sealing ring (11) is tightly matched with the corresponding sealing ring groove (12).

5. A superconducting membrane switch according to claim 1, characterized in that: The upper surface of the panel layer (1) is provided with a transparent protective film.

6. A superconducting thin film switch according to claim 1, wherein: Each of the button parts (5) is respectively provided with a fluorescent ring (13).

7. A superconducting membrane switch according to claim 1, characterized in that: The lower surface of the lower circuit board (4) is provided with a protective layer (7).

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