Keyboard Detection Fixture

Abstract

The present invention provides a keyboard detection fixture, comprising: a base, a cover body and a power-on device. The surface of the base close to the cover body is used for placing a keyboard circuit diaphragm. A power-on device is installed on the base, and the power-on device supplies power to the keyboard circuit diaphragm. The base is covered with the cover body, and keyboard keys are arranged on the cover body. The keyboard keys are aligned with the keyboard circuit diaphragm, and each keyboard key can transmit light. The keyboard detection fixture solves the problem in the prior art that it is difficult to identify which specific key is pressed when directly photographing and detecting the keyboard circuit diaphragm after powering it on.

Description

Technical Field

[0001] The present invention relates to a device for keyboard detection, and more particularly to a keyboard detection fixture. Background Art

[0002] Keyboard backlight detection is to energize and light up the keyboard circuit diaphragm, and then use a camera to take pictures to see whether the light generated by each key is normal, so as to determine whether the keyboard circuit diaphragm is qualified in quality.

[0003] In the prior art, after the keyboard circuit diaphragm is energized, it is directly detected. Since the keyboard circuit diaphragm has a very complex circuit, it is impossible to tell which key position it is. Therefore, it is very difficult to find out which specific key emits abnormal light after the camera takes pictures, which increases the difficulty of image recognition and may lead to incorrect detection results. Summary of the Invention

[0004] The present invention aims to provide a keyboard detection fixture to solve the problem in the prior art that it is difficult to identify which specific key is abnormal when directly taking pictures and detecting the keyboard circuit diaphragm after energization.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a keyboard detection fixture, including: a base, a cover body, and an energization device. The surface of the base close to the cover body is used to place the keyboard circuit diaphragm. An energization device is installed on the base to supply power to the keyboard circuit diaphragm. The cover body is covered on the base, and keyboard keys are provided on the cover body. The keyboard keys are aligned with the keyboard circuit diaphragm, and each keyboard key can transmit light.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] Each keyboard key on the cover body is respectively aligned with the position of each key on the keyboard circuit diaphragm. Each keyboard key on the cover body is almost the same as the keys on the surface of a general keyboard and also has markings. In this way, after the camera takes pictures, it can capture each keyboard key on the cover body and also the light emitted by each key on the keyboard circuit diaphragm, which is convenient for subsequent programs to identify which specific key emits abnormal light, thereby improving the detection efficiency, improving the detection result, and avoiding the phenomenon of difficult recognition due to the difficulty in recognizing the circuit on the keyboard circuit diaphragm.

[0009] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. Brief Description of the Drawings

[0010] Figure 1Side view of the keyboard detection fixture;

[0011] Figure 2 Top view of the base;

[0012] Figure 3 Cross-sectional view of the installation component in Embodiment 1;

[0013] Figure 4 Cross-sectional view of the installation component in Embodiment 2.

[0014] Reference numerals: base 1, cover 2, card slot 20, power-on device 3, positive electrode column 31, positive electrode plate 32, positive electrode wire 33, negative electrode column 34, negative electrode plate 35, negative electrode wire 36, elastic member 37, second magnet member 4, positioning column 5, installation component 6, lifting seat 60, guide rod 61, bottom plate 62, wedge block 63, pressing block 64, closing plate 65, second spring 66, first binding block 671, second binding block 672, rubber ring 673, cutting knife 68, support block 69. Detailed implementation manners

[0015] In order to make the technical means, creative features, achieved purposes and functions of the present invention clearer and easier to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners:

[0016] Embodiment 1:

[0017] As Figure 1 , Figure 2 and Figure 3 shown, the present invention provides a keyboard detection fixture, including: a base 1, a cover 2 and a power-on device 3. The surface of the base 1 close to the cover 2 is used to place the keyboard circuit diaphragm. The power-on device 3 is installed on the base 1, and the power-on device 3 supplies power to the keyboard circuit diaphragm. The cover 2 is covered on the base 1, and keyboard keys are arranged on the cover 2. The keyboard keys are aligned with the keyboard circuit diaphragm, and each keyboard key can transmit light.

[0018] For the convenience of connecting the connector on the keyboard circuit diaphragm to the energizing device 3, the energizing device 3 includes: a positive electrode column 31, a positive electrode plate 32, a positive electrode wire 33, a negative electrode column 34, a negative electrode plate 35, a negative electrode wire 36, and an elastic member 37. A groove 20 is recessed on the surface of the base 1 close to the cover 2. The groove 20 can engage with the connector of the keyboard circuit diaphragm. The separated positive electrode column 31 and negative electrode column 34 protrude in the groove 20. A positive electrode plate 32 is arranged below the positive electrode column 31, and a negative electrode plate 35 is arranged below the negative electrode column 34. Under the elastic force of the elastic member 37, a distance can be maintained between the positive electrode column 31 and the positive electrode plate 32, and a distance can be maintained between the negative electrode column 34 and the negative electrode plate 35. One end of the positive electrode wire 33 is connected to the positive electrode plate 32, and one end of the negative electrode wire 36 is connected to the negative electrode plate 35. The cover 2 presses the connector of the keyboard circuit diaphragm onto the positive electrode column 31 and the negative electrode column 34. In the prior art, it is necessary to insert the connector on the keyboard circuit diaphragm into a special external plug, and the connector needs to be aligned before being inserted into the plug, resulting in troublesome operation, reduced operation efficiency, and increased labor costs. In this application, the energizing device 3 is directly arranged on the base 1, realizing that the connector of the keyboard circuit diaphragm is directly pressed into the groove 20. A head protrusion is formed on the side wall of the connector of the keyboard circuit diaphragm, and the protrusion is in snap-fit with the groove formed on the inner wall of the groove 20. After the protrusion cooperates with the inner wall of the groove, it restricts the separation of the connector of the keyboard circuit diaphragm from the groove 20. Due to the insufficient elastic force of the elastic member 37, the protrusion cannot be ejected from the groove, ensuring sufficient contact between the connector of the keyboard circuit diaphragm and the positive electrode column 31 and the negative electrode column 34. Just press the connector of the keyboard circuit diaphragm, which greatly facilitates the operation, improves the operation efficiency, and is beneficial to saving labor costs.

[0019] In order to ensure that the cover 2 and the base 1 will not separate after the cover 2 is covered on the base 1, the edge of the base 1 away from the groove 20 is hinged to the cover 2. Two spaced-apart first magnet members are installed on the edge of the cover 2 away from the hinge. Two second magnet members 4 are installed on the base 1 on both sides of the groove 20. The first magnet members and the second magnet members 4 attract each other. The design of the two pairs of first magnet members and second magnet members 4 ensures that the cover 2 can be fully pressed on the base 1 at the groove 20, thereby ensuring that the cover 2 presses the connector of the keyboard circuit diaphragm tightly in the groove 20, ensuring sufficient contact, and avoiding the occurrence of poor power supply. At the same time, in order to ensure the pressing force, a pressing pad is installed on the cover 2. The pressing pad is made of an elastic material and is used to press the connector of the keyboard circuit diaphragm onto the positive electrode column 31 and the negative electrode column 34.

[0020] In order to realize the positioning of the base 1 and the keyboard circuit diaphragm, and to ensure that the keyboard keys on the cover 2 are aligned with the keyboard circuit diaphragm after the cover 2 is rotated and covered on the base 1, two spaced-apart positioning columns 5 are installed on the base 1. Both of the two positioning columns 5 pass through the edge of the keyboard circuit diaphragm, and a receiving groove for inserting the positioning columns 5 is provided on the cover 2.

[0021] In order to install the positive electrode post 31, the positive electrode plate 32, the positive electrode wire 33, the negative electrode post 34, the negative electrode plate 35, the negative electrode wire 36 and the elastic member 37, the positive electrode plate 32, the negative electrode plate 35 and the elastic member 37 are all installed on the installation assembly 6, and the installation assembly 6 is detachably connected to the base 1.

[0022] In order to detachably install the positive electrode post 31, the positive electrode plate 32, the positive electrode wire 33, the negative electrode post 34, the negative electrode plate 35, the negative electrode wire 36 and the elastic member 37 on the base 1 and prevent the positive electrode post 31 and the negative electrode post 34 from being worn when inserted into the installation groove, the installation assembly 6 includes: a lifting seat 60, a guide rod 61, a bottom plate 62, a wedge block 63, a pressing block 64 and a closing plate 65. The positive electrode plate 32, the negative electrode plate 35, the elastic member 37, the positive electrode wire 33 and the negative electrode wire 36 are all installed on the lifting seat 60. A recess is formed on the side wall of the base 1 to form an installation groove below the card slot 20. A bottom plate 62 is placed on the inner bottom surface of the installation groove. A guide rod 61 is inserted into the bottom plate 62. The guide rod 61 can move relative to the bottom plate 62 in the vertical direction. The guide rod 61 is connected to the lifting seat 60. A wedge block 63 is installed between the lifting seat 60 and the bottom plate 62. The wedge block 63 is slidably installed on the bottom plate 62. The installation groove can be opened and closed by the closing plate 65. The closing plate 65 is connected to the base 1 by screws. The closing plate 65 presses the bottom plate 62 against the inner wall of the installation groove. A pressing block 64 protrudes from the closing plate 65. A first step is formed on the lifting seat 60 facing the closing plate 65. The pressing block 64 is used to press the wedge block 63 against the first step. The large end of the wedge block 63 is located on the side where the small end of the wedge block 63 is close to the closing plate 65.

[0023] Since the rising height of the positive electrode post 31 and the negative electrode post 34 relative to the lifting seat 60 is not enough to insert the positive electrode post 31 and the negative electrode post 34 from the installation groove into the card slot 20, the elastic forces of the first elastic piece and the second elastic piece are not used to raise the positive electrode post 31 and the negative electrode post 34 to insert them into the card slot 20 during installation.

[0024] The working principle of this embodiment;

[0025] Before being inserted into the installation groove, under the action of its own gravity, the lifting seat 60 is in close contact with the bottom plate 62, and the lifting seat 60 is supported by the bottom plate 62. At this time, only the small end of the wedge block 63 is inserted between the lifting seat 60 and the bottom plate 62. Therefore, the distance from the positive electrode post 31 to the bottom surface of the bottom plate 62 is less than the height of the installation groove.

[0026] During installation, first, insert the base plate 62, guide rod 61, wedge block 63, lifting seat 60, positive plate 32, positive terminal 31, positive wire 33, negative plate 35, negative terminal 34, negative wire 36, and elastic member 37 into the installation groove. Since the lifting seat 60 is supported by the base plate 62 at this time, neither the positive terminal 31 nor the negative terminal 34 can contact the inner wall of the top of the installation groove, protecting the positive terminal 31 and the negative terminal 34 and preventing poor contact caused by damage due to friction between the positive terminal 31 and the negative terminal 34 and the inner wall of the installation groove. Push until the base plate 62 can no longer move into the installation groove. At this time, one through hole between the positive terminal 31 and the installation groove of the card slot 20 is aligned, and the other through hole between the positive terminal 31 and the installation groove of the card slot 20 is aligned. Then, cover the closing plate 65 on the installation groove. The closing plate 65 presses the base plate 62 tightly, and the pressing block 64 presses the wedge block 63 into the space between the lifting seat 60 and the base plate 62. The large end of the wedge block 63 enters the space between the lifting seat 60 and the base plate 62. The wedge block 63 causes the lifting seat 60 to rise, pressing both the positive terminal 31 and the negative terminal 34 into the card slot 20, ensuring that the connectors on the keyboard circuit film can make full contact with the positive terminal 31 and the negative terminal 34. The pressing block 64 presses the wedge block 63 tightly on the first step to prevent the wedge block 63 from having relative displacement with the lifting seat 60 during subsequent use. Finally, connect the closing plate 65 to the base 1 with screws to prevent the position of the closing plate 65 from moving.

[0027] Design concept of the power-on device 3: In order to simplify the connection between the connector on the keyboard circuit film and the power supply device, the power-on device 3 is designed. The positive terminal 31 and the negative terminal 34 on the power-on device 3 that contact the connector on the keyboard circuit film protrude from the card slot 20, and the inner wall of the card slot 20 can have a certain limit on the connector on the keyboard circuit film, ensuring full contact between the connector on the keyboard circuit film and the positive terminal 31 and the negative terminal 34. Then, by pressing the connector on the keyboard circuit film into the card slot 20, power-on can be achieved by contacting the positive terminal 31 and the negative terminal 34, thus simplifying the operation steps and improving the operation efficiency.

[0028] Design concept of the installation component 6: In order to install the energizing device 3 and ensure that only the positive electrode post 31 and the negative electrode post 34 can protrude from the card slot 20 under the elastic force of the elastic member 37, the installation component 6 is designed. First, the energizing device 3 is inserted into the installation groove, and it is ensured that the positive electrode post 31 and the negative electrode post 34 do not contact and wear the inner wall of the installation groove during insertion. Therefore, the lifting seat 60 is designed to be able to lift relative to the bottom plate 62. Then, when inserted into the installation groove, the lifting seat 60 is designed to be supported by the bottom plate 62 under its own gravity. When inserted into the installation groove, the lifting seat 60 needs to be lifted. Therefore, the wedge-shaped block 63 is designed. Finally, in order to ensure the state where the wedge-shaped block 63 lifts the lifting seat 60, the pressing block 64 is designed. The pressing block 64 is relatively fixed to the closing plate 65. The closing plate 65 not only closes the installation groove but also ensures that the position where the pressing block 64 presses the wedge-shaped block 63 does not change.

[0029] Embodiment 2:

[0030] The differences between this embodiment and Embodiment 1 are as follows: First, the specific structure of the installation component 6 is different; second, the elastic member 37 is different, and the installation method of the elastic member 37 is also different. Compared with Embodiment 1, except for the installation component 6 and the elastic member 37, other structures are the same.

[0031] In order to enable the positive electrode post 31, the positive electrode plate 32, the positive electrode wire 33, the negative electrode post 34, the negative electrode plate 35, the negative electrode wire 36 and the elastic member 37 to be detachably mounted on the base 1 and to prevent the positive electrode post 31 and the negative electrode post 34 from being worn when inserted into the installation groove, the installation assembly 6 includes: a lifting seat 60, a guide rod 61, a bottom plate 62, a second spring 66, a first binding block 671, a second binding block 672, a rubber ring 673, a cutter 68, a support block 69 and a closing plate 65. The positive electrode plate 32, the negative electrode plate 35, the elastic member 37, the positive electrode wire 33 and the negative electrode wire 36 are all mounted on the lifting seat 60. A recess is formed on the side wall of the base 1 to form an installation groove below the card slot 20. A bottom plate 62 is placed on the inner bottom surface of the installation groove. A guide rod 61 is inserted into the bottom plate 62. The guide rod 61 can move relative to the bottom plate 62 in the vertical direction. The guide rod 61 is connected to the lifting seat 60. A second spring 66 is connected between the lifting seat 60 and the bottom plate 62. A first binding block 671 is mounted on the surface of the lifting seat 60 close to the bottom plate 62. A second binding block 672 is mounted on the surface of the bottom plate 62 close to the lifting seat 60. When the first binding block 671 and the second binding block 672 are tied by the rubber ring 673, the positive electrode post 31 and the negative electrode post 34 of the lifting seat 60 do not contact the inner wall of the installation groove. The installation groove can be opened and closed by the closing plate 65. The closing plate 65 is connected to the base 1 by screws. A support seat is fixed on the closing plate 65. A support surface in contact with the support seat is provided on the lifting seat 60. The support surface is located above the first binding block 671. A second step is formed on the lifting seat 60 beside the support surface. The second step is located on the side of the first binding block 671 close to the closing plate 65. A cutter 68 is mounted on the support seat. The cutter 68 is used to cut the rubber ring 673.

[0032] In order to enable the cutter 68 to contact the rubber ring 673, a jack is formed by recessing the surface of the first binding block 671 close to the closing plate 65. The jack is for the cutter 68 to be inserted to cut the rubber ring 673.

[0033] In order to realize the installation of the elastic member 37, the positive electrode post 31 is mounted on the first elastic sheet, and the negative electrode plate 35 is mounted on the second elastic sheet. The installation groove and the card slot 20 are communicated through two communication holes. The diameter of each communication hole is larger than the diameters of the positive electrode post 31 and the negative electrode post 34, so as to avoid the positive electrode post 31 and the negative electrode post 34 from being able to adapt to a certain deflection and having a certain deflection space due to the deformation of the first elastic sheet and the second elastic sheet.

[0034] Design concept of the installation component 6: First, the energizing device 3 should be inserted into the installation groove, and it is ensured that the positive electrode post 31 and the negative electrode post 34 do not contact and wear the inner wall of the installation groove during insertion. Therefore, it is designed that the lifting seat 60 can lift relative to the bottom plate 62. Then, it is designed that the positive electrode post 31 and the negative electrode post 34 will not contact the inner wall of the installation groove when inserted into the installation groove. Therefore, the first binding block 671, the second binding block 672 and the rubber ring 673 are designed to ensure that the distance between the lifting seat 60 and the bottom plate 62 is relatively close during the insertion process. Then, in order to realize that the lifting seat 60 can rise after insertion, the second spring 66 is designed. Then, in order to realize that the second spring 66 can lift the lifting seat 60 when the closing plate 65 is installed, the cutter 68 is designed. The cutter 68 is fixed relative to the closing plate 65, and the cutter 68 can cut the rubber ring 673. In order to ensure that the cutter 68 can cut the rubber ring 673, the first binding block 671 and the second binding block 672 are provided with annular grooves for placing the rubber ring 673 to support the rubber ring 673 on the inner wall of the annular groove during cutting. In order to ensure that the rubber ring 673 located in the annular groove contacts the cutter 68, a jack is designed for the cutter 68 to insert. Subsequently, in order to avoid relative displacement between the lifting seat 60 and the bottom plate 62 when the positive electrode post 31 and the negative electrode post 34 are pressed, a support seat is designed to support the lifting seat 60. In order to ensure that the support seat can be inserted between the lifting seat 60 and the bottom plate 62, a second step is designed on the side of the first binding block 671 and the second binding block 672 close to the closing plate 65, so that the support seat can be inserted between the lifting seat 60 and the bottom plate 62 after the cutter 68 cuts the rubber ring 673.

[0035] In order to realize the installation of the elastic member 37, a first spring is arranged between the positive electrode post 31 and the positive electrode plate 32, and another first spring is arranged between the negative electrode post 34 and the negative electrode plate 35. The two first springs are the elastic member 37. A first insertion rod is installed on the positive electrode post 31, and a second insertion rod is installed on the negative electrode post 34. Both the first insertion rod and the second insertion rod are inserted into the lifting seat 60.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A keyboard detection fixture, characterized in that, it includes: a base, a cover body and a power-on device. The surface of the base close to the cover body is used to place the keyboard circuit diaphragm. A power-on device is installed on the base, and the power-on device supplies power to the keyboard circuit diaphragm. The base is covered with a cover body, and keyboard keys are arranged on the cover body. The keyboard keys are aligned with the keyboard circuit diaphragm, and each keyboard key can transmit light; Two spaced positioning posts are installed on the base. Both positioning posts pass through the edge of the keyboard circuit diaphragm, and a receiving groove for inserting the positioning posts is formed on the cover body; The power-on device includes: a positive electrode post, a positive electrode sheet, a positive electrode wire, a negative electrode post, a negative electrode sheet, a negative electrode wire and an elastic member. A card slot is formed by the depression of the surface of the base close to the cover body. The card slot can be inserted into the connector of the keyboard circuit diaphragm. A separated positive electrode post and negative electrode post protrude in the card slot. A positive electrode sheet is arranged below the positive electrode post, and a negative electrode sheet is arranged below the negative electrode post. Under the elastic force of the elastic member, a distance can be maintained between the positive electrode post and the positive electrode sheet, and a distance between the negative electrode post and the negative electrode sheet. One end of the positive electrode wire is connected to the positive electrode sheet, and one end of the negative electrode wire is connected to the negative electrode sheet. The cover body presses the connector of the keyboard circuit diaphragm on the positive electrode post and the negative electrode post; The positive electrode sheet, the negative electrode sheet and the elastic member are all installed on the installation component, and the installation component is detachably connected to the base; The installation component includes: a lifting seat, a guide rod, a bottom plate, a wedge block, a pressing block and a closing plate. The positive electrode sheet, the negative electrode sheet, the elastic member, the positive electrode wire and the negative electrode wire are all installed on the lifting seat. An installation groove is formed by the depression of the side wall of the base below the card slot. A bottom plate is placed on the inner bottom surface of the installation groove. The guide rod is inserted into the bottom plate, and the guide rod can move relative to the bottom plate in the vertical direction. The guide rod is connected to the lifting seat. A wedge block is installed between the lifting seat and the bottom plate. The wedge block can be slidably installed on the bottom plate. The installation groove can be opened and closed by the closing plate. The closing plate is connected to the base by screws. The closing plate presses the bottom plate against the inner wall of the installation groove. A pressing block protrudes from the closing plate. A first step is formed on the lifting seat facing the closing plate. The pressing block is used to press the wedge block on the first step. The large end of the wedge block is located on the side of the small end of the wedge block close to the closing plate.

2. The keyboard detection fixture according to claim 1, characterized in that, The edge of the base far from the card slot is hinged to the cover body. Two spaced first magnet members are installed on the edge of the cover body far from the hinged part. Two second magnet members are installed on the base on both sides of the card slot. The first magnet member and the second magnet member attract each other.

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