Universal installation device, test method and fixture for time-delay switch printed circuit board

Abstract

The invention discloses a universal installation device, a testing method and a jig for a time delay switch printed circuit board, wherein the jig comprises a jig bottom box provided with a positioning groove, the positioning groove is used to position a human body sensing delay switch component, a key delay switch component or an acoustic and optical controlled delay switch component, a movable hole connected to the positioning groove is provided at the bottom of the jig bottom box, a movable terminal is connected in the movable hole, the movable terminal is connected to a spring, and the movable terminal contacts with a terminal on the time delay switch printed circuit board under the elastic drive of the spring, so the jig is suitable for testing the time delay switch printed circuit board in the human body sensing delay switch component, the key delay switch component or the acoustic and optical controlled delay switch component.

Description

Technical Field

[0001] The invention belongs to the technical field of delay switch installation and testing. Background Art

[0002] Delay switches are divided into three categories: human body sensing delay switches, sound and light controlled delay switches and button delay switches. Since they are delay switches of different modes, the sensing electronic components on the integrated board are different, and the corresponding installation heights are also different.

[0003] The current technical standards require that printed circuit boards with different installation heights be designed with installation bases of different heights. Human body sensing delay switches, sound and light controlled delay switches, and mechanical button delay switches require at least three types of installation bases. The height differences also require three sets of wiring fixtures during factory testing. The existing solution not only increases mold investment costs and production costs, but also increases the test fixture replacement cycle. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and to design a universal installation and testing device for a time delay switch printed circuit board, a universal tooling fixture for testing, and a universal installation and testing method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] On the one hand, a universal installation device for a delay switch printed circuit board is provided, comprising a base with a mounting groove, a delay switch printed circuit board arranged in the bottom of the mounting groove, a cover plate engaged in the mounting groove and pressed onto the delay switch printed circuit board, and a panel installed on the upper part of the base and pressed onto the cover plate, wherein windows are correspondingly provided on the cover plate and the panel, the delay switch printed circuit board is provided with terminal posts, and the delay switch printed circuit board is a human body sensing delay switch printed circuit board, a button delay switch printed circuit board or an audio-visual controlled delay switch printed circuit board.

[0007] Preferably, the panel is fixed to the base via mounting buckles.

[0008] On the other hand, a universal tooling fixture for testing a delay switch printed circuit board is provided, which is used to perform power-on testing on the delay switch printed circuit board, and includes a tooling fixture bottom box provided with a positioning groove, wherein the positioning groove is used to position a human body sensing delay switch component, a button delay switch component or an audio-visual controlled delay switch component, and a movable hole connected to the positioning groove is provided at the bottom of the tooling fixture bottom box, wherein a movable terminal is connected in the movable hole, wherein the movable terminal is connected to a spring, and under the elastic drive of the spring, the movable terminal contacts the terminal post on the delay switch printed circuit board.

[0009] Preferably, a flange is provided in the middle of the movable terminal, a fixing plate is fixed to the bottom box of the fixture below the movable hole, the upper end of the spring abuts against the flange, and the lower end abuts against the fixing plate.

[0010] Preferably, a limiting step cooperating with the flange is provided on the upper portion of the movable hole.

[0011] Preferably, a fixing groove is provided at the bottom of the fixture bottom box, and the fixing plate is arranged in the fixing groove.

[0012] Finally, a general installation and testing method for a time delay switch printed circuit board is provided, comprising the following steps:

[0013] First, install the human body induction delay switch printed circuit board, the key delay switch printed circuit board or the sound and light control delay switch printed circuit board into the base, snap the cover into the base, and at the same time, limit the cover to press the human body induction delay switch printed circuit board to fix it, and snap the panel into the base through the installation buckle to form a human body induction delay switch assembly, a key delay switch assembly or a sound and light control delay switch assembly;

[0014] Secondly, assemble the human body induction delay switch assembly, the key delay switch assembly or the sound and light control delay switch assembly into the bottom box of the fixture, and install the movable terminal upward from the bottom of the fixture bottom box into the movable hole after the spring is covered, and the bottom of the movable hole is covered with a fixed plate. Under the elastic drive of the spring, the movable terminal contacts the terminal on the human body induction delay switch printed board, the key delay switch printed board or the sound and light control delay switch printed board;

[0015] Finally, the movable terminal is energized to perform a performance test on the delay switch printed circuit board.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. The present invention designs a universal installation device for a time delay switch printed circuit board, which realizes the universal installation of various time delay switch printed circuit boards.

[0018] For the installation of the human body induction delay switch printed circuit board, the cover plate fixes the human body induction delay switch printed circuit board, and the Fresnel lens on the human body induction delay switch printed circuit board passes through the cover plate and the window on the human body induction panel, protruding the human body induction panel, so as to realize the installation of the human body induction delay switch;

[0019] The key delay switch printed circuit board is installed at the same height as the human body induction delay switch printed circuit board. The cover plate fixes the key delay switch printed circuit board. The key passes through the cover plate and the window on the key delay switch panel, protrudes from the key delay switch panel, and the installation is achieved by adjusting the key height.

[0020] The sound and light controlled delay switch printed circuit board is installed at the height of the human body sensing delay switch printed circuit board, the sound and light controlled cover plate fixes the sound and light controlled delay switch printed circuit board, and the light transmitting sheet is installed in the sound and light controlled cover plate, and the installation is achieved by adjusting the height of the light transmitting sheet.

[0021] 2. The present invention designs a universal tooling fixture for testing a delay switch printed circuit board. In view of the different installation heights of a human body sensing delay switch printed circuit board, a key delay switch printed circuit board and an acoustic and optical control delay switch printed circuit board, a movable terminal is adopted. The movable terminal can contact with the terminal post on the delay switch printed circuit board under the elastic drive of a spring. Therefore, the universal tooling fixture is suitable for testing the delay switch printed circuit board in a human body sensing delay switch assembly, a key delay switch assembly or an acoustic and optical control delay switch assembly.

[0022] 3. The present invention provides a universal installation and testing method for a time delay switch printed circuit board, which is suitable for the installation and testing of time delay switch printed circuit boards with different installation heights.

[0023] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The invention will be further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is an assembly diagram of the human body sensing delay switch component of the present invention.

[0026] Figure 2 This is an assembly diagram of the key delay switch assembly of the present invention.

[0027] Figure 3 This is an assembly diagram of the sound and light controlled delay switch assembly of the present invention.

[0028] Figure 4 This is a test assembly diagram of the human body sensing delay switch of the present invention.

[0029] Figure 5 This is a test assembly diagram of the key delay switch of the present invention.

[0030] Figure 6 This is a test assembly diagram of the sound and light controlled delay switch of the present invention.

[0031] Figure 7 This is a schematic diagram of the key delay switch printed circuit board during testing.

[0032] Markings in the figure: 1. Base; 2. Cover; 3. Human body sensing delay switch printed circuit board; 4. Human body sensing panel; 5. Key delay switch printed circuit board; 6. Key; 7. Key delay switch panel; 8. Fixing screw; 9. Transparent sheet; 10. Sound and light control delay switch printed circuit board; 11. Sound and light control cover; 12. Sound and light control delay switch panel; 13. Fixture bottom box; 14. Spring; 15. Fixed plate; 16. Movable wiring terminal. DETAILED DESCRIPTION

[0033] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] Embodiment 1

[0038] Reference Figures 1 to 6As shown, the universal installation device of the time delay switch printed circuit board includes a base 1 with a mounting groove, a time delay switch printed circuit board arranged in the bottom of the mounting groove, a cover plate 2 engaged in the mounting groove and pressed on the time delay switch printed circuit board, and a panel installed on the upper part of the base and pressed on the cover plate, the cover plate and the panel are correspondingly provided with windows, and the panel is fixed to the base by mounting buckles, or can also be fixed by screws and the like. The time delay switch printed circuit board is provided with a terminal, and the time delay switch printed circuit board is a human body induction delay switch printed circuit board 3, a key delay switch printed circuit board 5 or an acoustic and optical control delay switch printed circuit board 10, and the corresponding assembled products are respectively a human body induction delay switch assembly, a key delay switch assembly or an acoustic and optical control delay switch assembly.

[0039] like Figure 1 and Figure 4 The human body induction delay switch product assembly shown is provided with a human body induction delay switch printed circuit board 3 and a human body induction panel 4. The cover plate 2 fixes the human body induction delay switch printed circuit board 3, and the Fresnel lens on the human body induction delay switch printed circuit board 3 passes through the cover plate 2 and the window on the human body induction panel 4, protruding the human body induction panel 4, so as to realize the installation of the human body induction delay switch.

[0040] like Figure 2 and Figure 5 The key delay switch assembly shown is provided with a key delay switch printed board 5 and a key delay switch panel 7, and the key 6 is inserted into the cover plate 2. The key delay switch printed board is installed at the height of the human body induction delay switch printed board, the cover plate 2 fixes the key delay switch printed board 5, and the key 6 passes through the cover plate 2 and the upper window of the key delay switch panel 7, protruding from the key delay switch panel 7, and the installation is achieved by adjusting the key height.

[0041] like Figure 3 and Figure 6 The sound and light controlled delay switch assembly shown is provided with a sound and light controlled delay switch printed circuit board 10, a sound and light controlled cover board 11, and a sound and light controlled delay switch panel 12, and the light-transmitting sheet 9 is installed in the sound and light controlled cover board 11. The sound and light controlled delay switch printed circuit board 12 is installed at the height of the human body induction delay switch printed circuit board, and the sound and light controlled cover board 11 fixes the sound and light controlled delay switch printed circuit board 10, and the installation is achieved by adjusting the height of the light-transmitting sheet 9.

[0042] Embodiment 2

[0043] like Figures 4 to 7As shown, a universal fixture for testing a time delay switch printed circuit board is used to conduct a power-on test on the time delay switch printed circuit board described in Example 1, and includes a fixture bottom box 13 provided with a positioning groove, the positioning groove is used to position a human body sensing delay switch component, a key delay switch component or an acoustic and optical control delay switch component, and the bottom of the fixture bottom box 13 is provided with a movable hole connected to the positioning groove, and a movable terminal 16 is connected in the movable hole, and the movable terminal 16 is connected to a spring 14, and the movable terminal contacts the terminal on the time delay switch printed circuit board under the elastic drive of the spring. Therefore, even if the installation heights of the human body sensing delay switch printed circuit board, the key delay switch printed circuit board and the acoustic and optical control delay switch printed circuit board are different, the universal fixture can also be applied to the testing of the delay switch printed circuit boards in the human body sensing delay switch component, the key delay switch component and the acoustic and optical control delay switch component.

[0044] In order to limit the upper and lower movable positions of the movable terminal, a flange is provided in the middle of the movable terminal, a fixing plate 15 is fixed below the movable hole of the tooling fixture bottom box, the upper end of the spring abuts against the flange, and the lower end abuts against the fixing plate. A limiting step is provided on the upper part of the movable hole to limit the flange.

[0045] Further, a fixing groove is provided at the bottom of the bottom box of the fixture, and the fixing plate is arranged in the fixing groove and can be fixed by fixing screws 8. Of course, it can be understood that it can also be fixed by snap-fitting.

[0046] Embodiment 3

[0047] like Figures 4 to 7 As shown, a universal installation and testing method for a time delay switch printed circuit board includes the following steps:

[0048] First, the human body induction delay switch printed circuit board 3, the key delay switch printed circuit board 5 or the sound and light control delay switch printed circuit board 10 are installed into the base 1, and the cover plate is snapped into the base. At the same time, the cover plate is limited and pressed against the human body induction delay switch printed circuit board to fix it. The panel is snapped into the base through the installation buckle to form a human body induction delay switch assembly, a key delay switch assembly or a sound and light control delay switch assembly.

[0049] Secondly, the human body induction delay switch assembly, the key delay switch assembly or the sound and light control delay switch assembly are assembled into the fixture bottom box 13, and the movable terminal 16 is covered with the spring 14 and installed upward from the bottom of the fixture bottom box into the movable hole, and the bottom of the movable hole is covered with a fixed plate 15. Under the elastic drive of the spring, the movable terminal contacts the terminal on the human body induction delay switch printed board 3, the key delay switch printed board 5 or the sound and light control delay switch printed board 10;

[0050] Finally, the movable connecting terminal 16 is powered on to perform a performance test on the time delay switch printed circuit board. So far, the entire printed circuit board assembly and fixture test work is completed.

[0051] For the button delay switch assembly, you need to first snap the button into the cover, and then snap the cover into the base.

[0052] For the sound and light controlled delay switch assembly, the light-transmitting sheet 9 needs to be installed into the sound and light controlled cover plate 11 first, and then the sound and light controlled cover plate is clamped into the base.

[0053] The above is only a specific embodiment of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A universal installation and testing method for a time delay switch printed circuit board, which uses a universal fixture for testing a time delay switch printed circuit board for installation and testing, characterized in that: The universal fixture for testing the delay switch printed circuit board includes a fixture bottom box provided with a positioning groove, wherein the positioning groove is used to position the human body sensing delay switch component, the key delay switch component or the sound and light control delay switch component; The bottom of the fixture bottom box is provided with a movable hole connected to the positioning groove, the movable hole is connected with a movable terminal, the movable terminal is connected with a spring, and the movable terminal contacts the terminal on the delay switch printed circuit board under the elastic drive of the spring; a flange is provided in the middle of the movable terminal, and a fixing plate is fixed to the fixture bottom box below the movable hole, the upper end of the spring abuts against the flange, and the lower end abuts against the fixing plate; a limiting step is provided on the upper part of the movable hole to limit the flange; a fixing groove is provided at the bottom of the fixture bottom box, and the fixing plate is arranged in the fixing groove; The method comprises the following steps: First, install the human body induction delay switch printed circuit board, the key delay switch printed circuit board or the sound and light control delay switch printed circuit board into the base, snap the cover into the base, and at the same time, limit the cover to press the human body induction delay switch printed circuit board to fix it, and snap the panel into the base through the installation buckle to form a human body induction delay switch assembly, a key delay switch assembly or a sound and light control delay switch assembly; Secondly, assemble the human body induction delay switch assembly, the key delay switch assembly or the sound and light control delay switch assembly into the bottom box of the fixture, and install the movable terminal upward from the bottom of the fixture bottom box into the movable hole after the spring is covered, and the bottom of the movable hole is covered with a fixed plate. Under the elastic drive of the spring, the movable terminal contacts the terminal on the human body induction delay switch printed board, the key delay switch printed board or the sound and light control delay switch printed board; Finally, the movable terminal is energized to perform a performance test on the delay switch printed circuit board; the key delay switch component is provided with a key delay switch printed circuit board and a key delay switch panel, and the key is inserted into the cover; the key delay switch printed circuit board is installed at the height of the human body sensing delay switch printed circuit board, the cover fixes the key delay switch printed circuit board, the key passes through the cover and the window on the key delay switch panel, and protrudes from the key delay switch panel.

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