Automobile tail door opening and closing structure

Abstract

The utility model relates to the technical field of electric control switches, in particular to an automobile tail door switch structure which comprises a shell assembly, a pressing cover is arranged at the top of the shell assembly, a bottom cover is arranged at the bottom of the shell assembly, a microswitch and a control circuit board are arranged on the bottom cover, and an elastic waterproof sleeve wrapping the microswitch and the control circuit board is connected to the bottom cover in a sealed mode. A transmission mechanism for triggering the microswitch to be turned on when the pressing cover is pressed is arranged above the elastic waterproof sleeve, the transmission mechanism comprises a downward pressing ejector rod inserted into the shell insert, and the bottom of the downward pressing ejector rod abuts against the elastic waterproof sleeve; specifically, a U-shaped piece used for balancing pressing force applied to the pressing cover to the elastic waterproof sleeve is fixedly inserted into a shell insert in the shell assembly, and the shell insert can be reset through deformation of the TPE sleeve. The utility model has the beneficial effects that the hand feeling can be smoothly triggered when any point is pressed, the edge is not easy to block when being pressed, and the pressing stroke is small.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile switches, in particular to an automobile tailgate switch structure. Background Art

[0002] The tailgate switch is a mechanical switch that opens and closes the motor-driven door lock by controlling the opening and closing of the control circuit. Tailgate switches on the market are generally shorter in length, and the longer ones can only be triggered by a rocker or multiple micro switches.

[0003] The existing utility model patent number is CN201920386899.3, which is a car tailgate switch, comprising a shell, a microswitch, a control circuit board, a transmission component, a bottom cover and a waterproof sealing sleeve. A soft touch-pressure cover is sealed on the top of the shell. When the touch-pressure cover is pressed, the transmission component is driven to press down to trigger the microswitch. A mounting groove is provided at the bottom of the shell, and a bottom cover is installed in the mounting groove, and is sealed and connected to the bottom cover to cover the control circuit board and the waterproof sealing sleeve. The waterproof sealing sleeve can be elastically deformed under pressure and connected between the transmission component and the microswitch. The mounting groove faces the outer port of the bottom cover, and the space between the bottom cover and the bottom cover is filled with sealing glue covering the position of the bottom cover, which can perform multiple sealing on the tailgate switch from the inside to the outside, improve the overall sealing of the product, and make the product IP protection level reach level seven. Compared with the existing technology, the dust and waterproof level is improved, which effectively prevents rain, dust and other impurities from penetrating into the shell, and helps to improve the performance and life of the car tailgate switch.

[0004] However, the above patent cannot achieve that pressing any point of the touch cover can trigger pressing smoothly, the pressing edge is easily stuck and the pressing stroke is large. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a car tailgate switch structure which can be smoothly triggered by pressing any point, is not easy to get stuck by pressing the edge and has a small pressing stroke in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the following technical scheme is adopted: a car tailgate switch structure, including a shell assembly, a push cover is provided on the top of the shell assembly, and a bottom cover is provided on the bottom; a micro switch and a control circuit board are provided on the bottom cover; an elastic waterproof cover covering the micro switch and the control circuit board is sealed and connected to the bottom cover; a transmission mechanism for triggering the micro switch to open when the push cover is pressed is provided above the elastic waterproof cover; the shell assembly includes a shell insert for installing the push cover and a shell for installing the bottom cover; a TPE cover that is deformed when the shell insert is pressed is provided between the shell insert and the shell; the transmission mechanism includes a push-down push rod inserted in the shell insert, the bottom of the push-down push rod is in conflict with the elastic waterproof cover, and a U-shaped piece for balancing the pressing force applied to the push cover to the elastic waterproof cover is inserted and fixed on one end of the shell insert facing the elastic waterproof cover.

[0007] By adopting the above technical solution, the outer end of the pressing cover just covers the top of the shell insert, and the bottom cover is embedded in the shell. A fixed U-shaped piece is inserted on the shell insert. The U-shaped piece can be set to different lengths to deal with the tailgate (trunk) switch with a long horizontal length, so that the user can press any point of the pressing cover to smoothly trigger it through the U-shaped piece to achieve a hand feel, thereby solving the problems of the pressing edge being stuck or having no hand feel and a large pressing stroke. The pressing cover drives the pressing push rod to move through the shell insert and deforms the elastic waterproof cover to trigger the micro switch, and then returns to its original position through the deformation of the TPE cover. TPE is a thermoplastic elastomer material and can connect the shell insert and the shell, and also has good elasticity. At the same time, a breathable film can be set on the shell to prevent the internal air pressure from being too high. The U-shaped piece is formed by bending both ends of a cylinder in the same direction. The long side in the middle of the U-shaped piece after bending is used to balance the outer shell assembly and the press cover assembled thereon, and the short sides after bending at both ends can be inserted and fixed in the outer shell insert. When it is set to a cylindrical shape, it can be more easily inserted into the outer shell insert and installed. At the same time, the U-shaped piece can also be set to be formed by bending both ends of a rectangular polygon in the same direction. A slot of the same shape can be directly set in the outer shell insert. The U-shaped piece is inserted into the slot to complete the fixation, and the long end in the middle is used to balance the outer shell assembly and the press cover, and the short sides at both ends are used to be inserted and fixed in the outer shell assembly.

[0008] A car tailgate switch structure can be further configured as follows: an inner shell is clamped and fixed in the outer shell for a downward push rod to pass through and to move axially, a protrusion in the inner shell is provided with a limiting protrusion located below the U-shaped part for the U-shaped part to abut against, and a pair of blocking plates extending into the inner shell are provided on the side of the outer shell insert facing the elastic waterproof sleeve, and mounting grooves for the U-shaped part to extend into are provided between the blocking plates, and a blocking block is provided in the mounting groove below the U-shaped part to prevent the U-shaped part from sliding out.

[0009] By adopting the above technical solution, an opening is provided on the inner shell for the axial movement of the push rod, and the limiting protrusion can prevent the position of the U-shaped part from being shifted when the push rod is pressed after the insertion, thereby causing the triggering to be improper. The two ends of the U-shaped part can be respectively extended into the installation groove, and the blocking block on the installation groove can prevent the U-shaped part from falling out. At the same time, the blocking plate can be inserted into the opening first, and then the U-shaped part can be installed. The installation is more convenient and there will be no interference due to the obstruction of the U-shaped part.

[0010] A car tailgate switch structure can be further configured as follows: a limit strip extending into a mounting groove is provided on the side of the push cover facing the outer shell insert, the limit strip abuts the U-shaped part against the top of the blocking block, a sliding groove is provided on the inner shell for the blocking plate to be installed away from one end of the mounting groove, and a slider extending into the sliding groove and guided by the sliding groove for axial movement is provided on one end of the blocking plate.

[0011] By adopting the above technical scheme, the installation groove can be used for the installation of the U-shaped part and the limit bar can be extended into the installation, which can play a role in reducing the installation groove, and can also just block the U-shaped part and reduce the contact of the U-shaped part with the air, so that it is not easy to oxidize and rust. At the same time, the insertion of the limit bar can also make the U-shaped part always abut against the top of the blocking block to prevent the position of the U-shaped part from shifting when the pressing cover is pressed. At the same time, the setting of the slide groove and the slider can also make the slider on the blocking plate of the shell insert move axially in the slide groove when pressed, and will not shift left and right to cause position deviation.

[0012] A car tailgate switch structure can be further configured as follows: the push cover and the shell insert are connected via a buckle, and the bottom cover and the shell are also connected via a buckle.

[0013] By adopting the above technical solution, the push cover and the shell insert are connected by a buckle, which is tightly connected and more convenient to install. At the same time, the push cover can be replaced with various colors to adapt to cars of different colors, which solves the problem that the push cover is difficult to assemble and switch. At the same time, the bottom cover can also be connected to the shell by the buckle, which can reduce the number of screws used. During installation, it is only necessary to press the push cover and the shell insert to complete the fixation. The bottom cover and the shell are also fixed by pressing in the same way, which increases the efficiency of installation and saves the time of installing screws.

[0014] A car tailgate switch structure can be further configured as follows: the upper protrusion of the elastic waterproof cover is provided with an elastic protrusion covering a micro switch, the downward push rod is located above the elastic protrusion and is provided with a limiting truncated cone with a diameter larger than the downward push rod, and the limiting truncated cone abuts against the elastic protrusion.

[0015] By adopting the above technical solution, the diameter of the limit table is larger than the diameter of the push rod, the upper end of the push rod is fixed to the outer shell assembly, and the limit table is located at the lower end of the push rod. The limit table just abuts against the outer wall of the elastic protrusion, and the inner wall of the elastic protrusion is the micro switch. Therefore, the limit table can drive the micro switch to start through the elastic protrusion.

[0016] A car tailgate switch structure can be further configured as follows: the elastic waterproof sleeve is a waterproof rubber sleeve.

[0017] By adopting the above technical solution, the waterproof rubber cover is arranged above the micro switch, which can not only achieve a good waterproof effect, but also prevent water from entering the micro switch and the control circuit board to cause a short circuit, thereby increasing the safety of the product when it rains outdoors. At the same time, the waterproof rubber cover also has good elasticity, so it can be deformed by pushing the push rod down and triggering the micro switch to achieve functional output.

[0018] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional state diagram of an embodiment of the utility model.

[0020] Figure 2 For the utility model embodiment Figure 1 Schematic diagram of the explosion state.

[0021] Figure 3 In the embodiment of the utility model Figure 1 Left view of .

[0022] Figure 4 In the embodiment of the utility model Figure 3 AA section view.

[0023] Figure 5 For the utility model embodiment Figure 2 Schematic diagram of the internal structure of the housing assembly.

[0024] Figure 6 For the utility model embodiment Figure 2 Schematic diagram of the structure of the inner shell.

[0025] Figure 7 For the utility model embodiment Figure 2 Schematic diagram of the structure of the push-down push rod.

[0026] In the figure: 1. shell assembly; 2. push cover; 3. bottom cover; 4. micro switch; 5. control circuit board; 6. elastic waterproof cover; 7. shell insert; 8. shell; 9. TPE cover; 10. transmission mechanism; 11. push-down push rod; 12. limit cone; 13. limit protrusion; 20. inner shell; 21. U-shaped part; 22. blocking plate; 23. mounting groove; 24. blocking block; 25. limiting strip; 26. slide groove; 27. slider; 61. elastic protrusion. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example: Figure 1-Figure 7 The illustrated embodiment of a car tailgate switch structure comprises a housing assembly 1, wherein a push cover 2 is disposed on the top of the housing assembly 1 and a bottom cover 3 is disposed on the bottom. The housing assembly comprises a housing insert 7 for installing the push cover 2 and a housing 8 for installing the bottom cover 3. A TPE sleeve 9 which is deformed after pressing the housing insert 7 is disposed between the housing insert 7 and the housing 8. The outer end of the push cover 2 just covers the top of the housing insert 7, and the bottom cover 3 is embedded in the housing 8. The push cover 2 and the housing insert 7 are connected by a snap buckle, and the bottom cover 3 and the housing 8 are also connected by a snap buckle. The snap buckle connection can reduce the number of screws used while installing tightly, thereby increasing the installation speed and saving the installation time. Figure 2 As shown, the bottom cover 3 is provided with a micro switch 4 and a control circuit board 5, and the bottom cover 3 is sealed with an elastic waterproof sleeve 6 covering the micro switch 4 and the control circuit board 5, and the elastic waterproof sleeve 6 is a waterproof rubber sleeve. The elastic waterproof sleeve 6 can effectively prevent external water from entering and causing water ingress and conductivity of the micro switch 4 and the control circuit board 5, thereby increasing the safety of the product when used outdoors on rainy days, and the elastic waterproof sleeve 6 is set to rubber so that it can have a certain elasticity and be deformable. The shell insert 7 is inserted and fixed with a U-shaped piece 21 for balancing the pressing force applied to the pressing cover 2 to the elastic waterproof sleeve 6 at one end of the elastic waterproof sleeve 6, and a transmission mechanism 10 is provided above the elastic waterproof sleeve 6, which causes the elastic waterproof sleeve 6 to deform and trigger the micro switch 4 to open when the pressing cover 2 is pressed, and the transmission mechanism 10 includes a downward pressing push rod 11 inserted in the shell insert 7, The bottom of the push rod 11 contacts the elastic waterproof sleeve 6, and the elastic waterproof sleeve 6 is convexly provided with an elastic protrusion 61 covering the micro switch 4. The push rod 11 is located above the elastic protrusion 61 and is protruding with a limit cone 12 with a diameter larger than the push rod 11. The limit cone 12 contacts the elastic protrusion 61. The upper end of the push rod 11 is fixed to the outer shell assembly 1, and the limit cone is located at the lower end of the push rod 11. The limit cone 12 just contacts the outer wall of the elastic protrusion 61, and the inner wall of the elastic protrusion 61 is the micro switch 4. Therefore, the limit cone 12 can drive the micro switch 4 to start through the elastic protrusion 61. The outer shell assembly 1 is fixed with an inner shell 20 for the push rod 11 to pass through and move axially. The inner shell 20 is convexly provided with a limit cone 13 located below the U-shaped part 21 for the U-shaped part 21 to contact. Figure 5As shown, the outer shell insert 7 is provided with a pair of blocking plates 22 extending into the inner shell 20 on the side facing the elastic waterproof sleeve 6, and a mounting groove 23 for the U-shaped part 21 to extend into is provided between the blocking plates 6, and the mounting groove 23 is provided with a blocking block 24 that blocks the U-shaped part 21 from sliding out at a position below the U-shaped part 21, and the pressing cover 2 is provided with a limiting strip 25 extending into the mounting groove 23 on the side facing the outer shell assembly 1, and the limiting strip 25 abuts the U-shaped part 21 against the top of the blocking block 24. At the same time, the insertion of the limiting strip 25 can also make the U-shaped part 21 always abut against the top of the blocking block to prevent the position of the U-shaped part 21 from shifting when the pressing cover 2 is pressed. A sliding groove 26 is provided on the inner shell 20 for installing one end of the blocking plate 22 away from the mounting groove 23, and a sliding block 27 extending into the sliding groove 26 and guided by the sliding groove 26 for axial movement is provided on one end of the blocking plate 22. The setting of the slider 27 can also enable the slider 27 on the blocking plate 22 of the shell insert 7 to move axially in the slide groove 26 when pressed, and will not cause position deviation due to left and right displacement. A fixed U-shaped part 21 is inserted on the shell insert 7. For a tailgate (trunk) switch with a long horizontal length, the user can smoothly trigger the pressing cover 2 at any point through the U-shaped part 21 to achieve a hand feel, thereby solving the problems of the pressing edge being stuck or having no hand feel and a large pressing stroke. The pressing cover 2 drives the pressing push rod 11 to move through the shell insert 7 and deforms the elastic waterproof cover 6 to trigger the micro switch, thereby realizing the opening or closing of the tailgate switch. At the same time, the TPE cover 9 can make the shell insert 7 return to its original position by elastic force after being pressed. At the same time, a breathable membrane can be set on the shell 8 to prevent the internal air pressure from being too high and causing failure to press, and the U-shaped part 21 can make the shell assembly 1 and the pressing cover 2 assembled thereon play a balancing role.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A car tailgate switch structure, comprising a housing assembly (1), wherein the housing assembly (1) is provided with a pressing cover (2) on the top and a bottom cover (3) on the bottom, wherein a micro switch (4) and a control circuit board (5) are provided on the bottom cover (3), wherein an elastic waterproof cover (6) covering the micro switch (4) and the control circuit board (5) is sealedly connected to the bottom cover (3), wherein a transmission mechanism (10) is provided above the elastic waterproof cover (6) for triggering the micro switch (4) to open when the pressing cover (2) is pressed, wherein: The housing assembly (1) comprises a housing insert (7) for mounting a pressing cover (2) and a housing (8) for mounting a bottom cover (3); a TPE sleeve (9) which is deformed when the housing insert (7) is pressed is provided between the housing insert (7) and the housing (8); the transmission mechanism (10) comprises a downward pressing push rod (11) inserted in the housing insert (7); the bottom of the downward pressing push rod (11) contacts the elastic waterproof sleeve (6); and a U-shaped member (21) is inserted and fixed at one end of the housing insert (7) facing the elastic waterproof sleeve (6) for balancing the pressing force applied to the pressing cover (2) to the elastic waterproof sleeve (6).

2. The automobile tailgate switch structure according to claim 1, characterized in that: An inner shell (20) is fixedly fastened inside the outer shell (8) for the downward push rod (11) to pass through and to move axially. A protrusion inside the inner shell (20) is provided with a limiting protrusion (13) located below the U-shaped part (21) for the U-shaped part (21) to abut against. A pair of blocking plates (22) extending into the inner shell (20) are provided on one side of the outer shell insert (7) facing the elastic waterproof sleeve (6). Mounting grooves (23) for the U-shaped part (21) to extend into are provided between the blocking plates (22). A blocking block (24) is provided below the U-shaped part (21) to prevent the U-shaped part (21) from sliding out.

3. The automobile tailgate switch structure according to claim 2, characterized in that: The pressing cover (2) is provided with a limiting strip (25) extending into the mounting groove (23) on one side facing the outer shell insert (7), and the limiting strip (25) abuts the U-shaped member (21) against the upper side of the blocking block (24). The inner shell (20) is provided with a sliding groove (26) for mounting one end of the blocking plate (22) away from the mounting groove (23), and a sliding block (27) extending into the sliding groove (26) and guided by the sliding groove (26) for axial movement is provided on one end of the blocking plate (22).

4. The automobile tailgate switch structure according to claim 3, characterized in that: The pressing cover (2) and the housing insert (7) are connected via a snap-fit ​​connection, and the bottom cover (3) and the housing (8) are also connected via a snap-fit ​​connection.

5. The automobile tailgate switch structure according to claim 1 or 2, characterized in that: The elastic waterproof sleeve (6) is provided with an elastic protrusion (61) covering the micro switch (4) on the protrusion, and the downward pressing push rod (11) is provided with a limiting truncated cone (12) with a diameter larger than that of the downward pressing push rod above the elastic protrusion (61), and the limiting truncated cone (12) abuts against the elastic protrusion (61).

6. The automobile tailgate switch structure according to claim 5, characterized in that: The elastic waterproof sleeve (6) is a waterproof rubber sleeve.

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